diff --git a/.gitattributes b/.gitattributes index 57fa5393..130dab4a 100644 --- a/.gitattributes +++ b/.gitattributes @@ -1,2 +1,66 @@ -/*.sql diff -*.sql diff +# Custom for Visual Studio +*.ascx text +*.cmd text +*.ps1 text +*.psm1 text +*.coffee text +*.config text +*.cs text diff=csharp +*.csproj text merge=union +*.css text +*.cshtml text +*.htm text +*.html text +*.js text +*.msbuild text +*.resx text merge=union +*.ruleset text +*.Stylecop text +*.targets text +*.tt text +*.txt text +*.vb text +*.vbhtml text +*.vbproj text merge=union +*.xml text +*.xunit text +*.sln text eol=crlf merge=union +*.settings text + +# STANDARD TO MSYSGIT +*.DOC DIFF=ASTEXTPLAIN +*.DOC DIFF=ASTEXTPLAIN +*.DOCX DIFF=ASTEXTPLAIN +*.DOCX DIFF=ASTEXTPLAIN +*.XLS binary +*.XLS binary +*.XLSX binary +*.XLSX binary +*.PPT binary +*.PPTX binary +*.DOT DIFF=ASTEXTPLAIN +*.DOT DIFF=ASTEXTPLAIN +*.PDF DIFF=ASTEXTPLAIN +*.PDF DIFF=ASTEXTPLAIN +*.RTF DIFF=ASTEXTPLAIN +*.RTF DIFF=ASTEXTPLAIN + + +*.JPG BINARY +*.PNG BINARY +*.GIF BINARY +*.ICO BINARY +*.BMP BINARY +*.MDF BINARY +*.LDF BINARY +*.MAFF BINARY + +# EOL = lf +*.HTM eol=lf merge=union +*.HTML eol=lf merge=union +*.MD eol=lf merge=union + +# T-SQL files +*.sql eol=crlf merge=union +/*.sql diff +*.sql diff diff --git a/.github/bug_report.md b/.github/bug_report.md new file mode 100644 index 00000000..cfaa64e5 --- /dev/null +++ b/.github/bug_report.md @@ -0,0 +1,16 @@ +--- +name: Bug report +about: Create a bug report to help us improve + +--- + +Include the version number of the script you're using. +If it's not the current version, upgrade to the current version and test that before reporting a bug - we fix a lot of stuff in each new build. + +**What is the current behavior?** + +**If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem via http://sqlfiddle.com** + +**What is the expected behavior?** + +**Which versions of SQL Server and which OS are affected by this issue? Did this work in previous versions of our procedures?** diff --git a/.github/feature_request.md b/.github/feature_request.md new file mode 100644 index 00000000..257aee58 --- /dev/null +++ b/.github/feature_request.md @@ -0,0 +1,25 @@ +--- +name: Feature request +about: Suggest an idea for this project + +--- + +Fixes # . + +Changes proposed in this pull request: + - + +How to test this code: + - + +Has been tested on (remove any that don't apply): + - Case-sensitive SQL Server instance + - SQL Server 2008 + - SQL Server 2008 R2 + - SQL Server 2012 + - SQL Server 2014 + - SQL Server 2016 + - SQL Server 2017 + - SQL Server 2019 + - Amazon RDS + - Azure SQL DB diff --git a/.github/sql_help.md b/.github/sql_help.md new file mode 100644 index 00000000..383c7685 --- /dev/null +++ b/.github/sql_help.md @@ -0,0 +1,9 @@ +--- +name: SQL HELP +about: Describe your problem and get help + +--- + +1. Operation system with detailed version (Windows, Ubuntu, Macos etc.). Example: `Microsoft Windows [Version 10.0.16299.248]` +2. Relation database type (SQL Server preferred, Orcale, MySQL, PostgreSQL, SQLite etc.) with detailed version. Example: `Microsoft SQL Server 2017 (RTM-CU1) (KB4038634) - 14.0.3006.16 (X64) ... on Windows 10 Pro 10.0` +3. Demo script (if necessary) to reproduce your problem. diff --git a/Articles/Arrays and Lists in SQL Server 2008.htm b/Articles/Arrays and Lists in SQL Server 2008.htm deleted file mode 100644 index 880f43b4..00000000 --- a/Articles/Arrays and Lists in SQL Server 2008.htm +++ /dev/null @@ -1,1087 +0,0 @@ - - - - - - -Arrays and Lists in SQL Server 2008 - - -

Arrays and Lists in SQL Server 2008
Using Table-Valued Parameters

-

An SQL text by Erland Sommarskog, SQL Server MVP. Latest -revision: 2012-07-01.

-

Introduction

-

In the public forums for SQL Server, you often see people asking How do I use -arrays in SQL Server? Or Why does SELECT * FROM tbl WHERE col IN (@list) -not work? The short answer to the first question is that SQL Server does not have -arrays – SQL Server has tables. Upto SQL Server 2005, there was no way to pass a table -from a client, but you had to pass a comma-separated string or similar to SQL Server, and then you would unpack that list into a table in your stored procedure.

-

This changed with SQL 2008. The - advent of table-valued parameters makes it dirt simple to pass a comma-separated list to SQL Server. In this article I will introduce a simple and perfectly reusable class for this task. Table-valued parameters are also great when you want to load data to SQL Server through a stored procedure; you no longer have to build XML documents that you shred in SQL Server. In this article I show you how to load a master-detail file into SQL Server tables in two different ways: read the entire file into memory or stream it directly. What I am not showing – because it's so simple – is that if you already have your data in a DataTable object, you can pass that DataTable as the value for your TVP.

-The examples are in C# and VB .NET, using the SqlClient API, and the main body of the article covers this environment. For other environments such as Java or Entity Framework, there is a quick overview of what is possible at the end of the article. -

There is an accompanying article: Arrays and Lists in SQL Server 2005 and Beyond - (and an even older for SQL 2000) where I in detail describe various methods to pass a list of values in a -string and unpack them into a table in SQL Server. For the hard-core geeks there are two performance indexes, one labelled SQL 2008 and an older labelled SQL 2005, where I relate data from performance tests of the methods described in -the articles, including table-valued parameters.

-

Contents:

- -

   Introduction
-    Background
-    Table-Valued Parameters in T‑SQL
-       Declarations
-       Invoking an SP with a TVP
-       Permissions
-       Restrictions
-    Passing Table-Valued Parameters from ADO .NET
-       About the Sample Code
-    Sending a Comma-Separated List to SQL Server
-       Using the Class with a Stored Procedure
-       Inside the CSV_splitter Class
-    What About Performance?
-       Performance in SQL Server
-       Client-side Performance
-       Primary Keys and Sorted Data – Looking Closer at the SqlMetaData constructors
-    Loading Data through Table-Valued Parameters
-       The Setup
-       Take One: Reading the File Into a List
-       Take Two: Streaming the File
-       Performance Considerations
-    Using Table-Valued Parameters from Other APIs
-    Acknowledgements, Feedback and Further Reading
-    Revision History

-

Some of the sample code in this article refers to the Northwind database. - This database does not ship with SQL Server, but you can download the script to -install it from Microsoft's web site.

- -

Background

-

You have a number of key values, identifying a couple of rows in a table, and - you want to retrieve these rows. If you are the sort of person who composes - your SQL statements in - client code, you might have something that looks like this:

-
cmd.CommandText = "SELECT ProductID, ProductName FROM Northwind.dbo.Products " & _
-                  "WHERE ProductID IN (" & List & ")"
-reader = cmd.ExecuteReader()
-

List is here a string variable that you somewhere have assigned a comma-separated list, for instance "9,12,27,39". -

-

This sort of code is bad practice, because you should never interpolate - parameter values into your query string. (Why, is beyond the scope of this - article, but I discuss this in detail in my article - The Curse and Blessings of Dynamic SQL, - particularly in the sections on - SQL Injection and Caching - Query Plans.) -

-

Since this is bad practice, you want to use stored - procedures. However, at first glance you don't seem to find that any apparent - way to do this. Many have tried with:

-
CREATE PROCEDURE get_product_names @ids varchar(50) AS
-   SELECT ProductID, ProductName
-   FROM   Northwind.dbo.Products
-   WHERE  ProductID IN (@ids)
-

But when they test:

-
EXEC get_product_names '9,12,27,37'
-

The reward is this error message:

-
Server: Msg 245, Level 16, State 1, Procedure get_product_names, Line 2
-Syntax error converting the varchar value '9,12,27,37' to a column
-of data type int.
-

This fails, because we are no longer composing an SQL statement dynamically, - and @ids - is just one value in the IN clause. An IN clause that could also read:

-
... WHERE col IN (@a, @b, @c)
-

Or more to the point, consider this little script:

-
CREATE TABLE #csv (a varchar(20) NOT NULL)
-go
-INSERT #csv (a) VALUES ('9,12,27,37')
-INSERT #csv (a) VALUES ('something else')
-SELECT a FROM #csv WHERE a IN ('9,12,27,37')  -- Returns one row.
-

So now you know why col IN (@list) does not work. Or rather: you know now that it works differently from -your expectations. In the following we will look into how to solve this kind -of problem with table-valued parameters.

-

Before I go on, I should add that sometimes you may find yourselves in the (very -unfortunate) situation when you have a delimited list in a table -column in your database. To unpack such a list, you would need any of the methods that I discuss in -Arrays -and Lists for SQL 2005 and Beyond; -TVPs cannot help you here.

-

Table-Valued Parameters in T-SQL

-

Declarations

-

Let's first look at how to use TVPs in T‑SQL without involving a client. To be able to declare a TVP, you first need - to create a table type like this:

-
CREATE TYPE integer_list_tbltype AS TABLE (n int NOT NULL PRIMARY KEY)
-

That is, after CREATE TYPE you specify the type name followed by AS TABLE and then -comes the table definition, -using the same syntax as CREATE TABLE. You cannot use everything you can use with CREATE -TABLE, but you can define PRIMARY KEY, UNIQUE and CHECK constraints, you can use IDENTITY and DEFAULT definitions, -and you can define computed columns. Once you have this table type, you can use it -to declare table variables:

-
DECLARE @mylist integer_list_tbltype
-

However, you cannot use the type with CREATE TABLE (it could have been nutty with temp tables!), nor can you use it for -the declaration of the return table in a multi-step table function. The raison d'être for table types is to make it possible to declare table-valued parameters for stored procedures or user-defined functions. Here is one example:

-
CREATE PROCEDURE get_product_names @prodids integer_list_tbltype READONLY AS
-   SELECT p.ProductID, p.ProductName
-   FROM   Northwind.dbo.Products p
-   WHERE  p.ProductID IN (SELECT n FROM @prodids)
-

The body of the procedure brings no surprises. The code looks just as it would have if @prodids had been a local -table variable. The parameter declaration on the other hand includes a keyword hitherto not seen in this -context: READONLY. This keyword means what it says: you cannot modify the contents of the table parameter in any -way in the procedure. As an aside, this restriction makes TVPs far less useful than they could have been; -often you want to pass data between stored procedures as I discuss in my article How to -Share Data Between Stored Procedures. However, for the task at hand, passing data from a client, the READONLY -restriction is no major obstacle.

-

Invoking an SP with a TVP

-

Calling this procedure is straightforward:

-
DECLARE @mylist integer_list_tbltype
-INSERT @mylist(n) VALUES(9),(12),(27),(37)
-EXEC get_product_names @mylist
-

(Here I use the new syntax for INSERT that permits me to specify values for more than one row in the VALUES clause.) -You can also use TVPs with sp_executesql:

-
DECLARE @mylist integer_list_tbltype,
-        @sql nvarchar(MAX)
-SELECT  @sql = N'SELECT p.ProductID, p.ProductName
-                 FROM    Northwind..Products p
-                 WHERE   p.ProductID IN (SELECT n FROM @prodids)'
-INSERT @mylist VALUES(9),(12),(27),(37)
-EXEC sp_executesql @sql, N'@prodids integer_list_tbltype READONLY', @mylist
-

There are a few peculiarities, though. This does not work:

-
EXEC get_product_names NULL
-

but results in this error message:

-
Msg 206, Level 16, State 2, Procedure get_product_names, Line 0
-Operand type clash: void type is incompatible with integer_list_tbltype
-

It is quite logical when you think of it: NULL is a scalar value, not a table value. But what do you think about -this:

-
EXEC get_product_names
-

You may expect this to result in an error due to the missing parameter, but instead this runs and produces an empty -result set! The same happens with:

-
EXEC get_product_names DEFAULT
-

The scoop is that a table-valued parameter always has the implicit default value of an empty table. Whether this is -good or bad can be disputed, but if there were to be explicit default values, Microsoft would have to invent a lot of -syntax for it. And in most cases, the default value you want is probably the empty table, so it is not entirely unreasonable.

-

Permissions

-

One thing with table types which is not apparent is that you need permission - to use a table type. This can be demonstrated in this script:

-
CREATE USER testuser WITHOUT LOGIN
-go
-EXECUTE AS USER = 'testuser'
-go
-DECLARE @p integer_list_tbltype
-go
-REVERT
-go
-DROP USER testuser
-

(What we do here is to create a loginless user, and then impersonate that -user. This is a quick way to test permissions. For more details on impersonation, -see my article Giving Permissions through Stored -Procedures.)

-

The output from this script is puzzling:

-
Msg 229, Level 14, State 5, Line 1
-The EXECUTE permission was denied on the object 'integer_list_tbltype',
-database 'tempdb', schema 'dbo'.
-

But the message is to be taken by the letter. To be able to use a table type, -you need to have EXECUTE permission on the type. (This does not apply to normal -scalar types, but it does apply to user-defined CLR types.) To grant permission -on a type, the syntax is:

-
GRANT EXECUTE ON TYPE::integer_list_tbltype TO testuser
-

The TYPE:: prefix is needed to specify the object class.

-

Restrictions

-

It is maybe not so surprising that you cannot use table-valued parameters across linked servers, given that there are many restrictions with linked servers. But it does not stop there: you cannot even use table-valued parameters across databases. If you try something like:

-
USE tempdb
-go
-CREATE TYPE tobbe AS TABLE (a int NOT NULL PRIMARY KEY)
-go
-CREATE PROCEDURE tobbe_sp @t tobbe READONLY AS
-   SELECT a FROM @t
-go
-USE otherdb
-go
-CREATE TYPE tobbe AS TABLE (a int NOT NULL PRIMARY KEY)
-go
-DECLARE @t tobbe
-EXEC tempdb..tobbe_sp @t
-

The error message is:

-
Msg 206, Level 16, State 2, Procedure tobbe_sp, Line 0
-Operand type clash: tobbe is incompatible with tobbe
-

And if you try

-
CREATE PROCEDURE tobbe_sp @t otherdb.dbo.tobbe READONLY AS
-   SELECT a FROM @t
-

You get the message:

-
Msg 117, Level 15, State 2, Procedure tobbe_sp, Line 1
-The type name 'otherdb.dbo.tobbe' contains more than the maximum number of prefixes. The maximum is 1.
-

This some awkward message informs us that the data type for a parameter cannot be a three-part name with a database component.

-

You cannot create stored procedures or - user-defined functions in the CLR that - take a table-valued parameter. But the - other way works: you can call a T‑SQL procedure with a TVP from a CLR procedure, using the same mechanisms you use from a client and which is what we will -look at next.

-

Passing Table-Valued Parameters from ADO .NET

-

Passing values to TVPs from ADO .NET is very straightforward, and requires very little extra code compared to passing - data to regular parameters. You need .NET Framework 3.5 SP1 or higher to have support for TVPs. You can only use TVPs with SqlClient; you cannot use TVPs with the classes in the System.Data.OleDb or System.Data.Odbc namespaces.

-

The specifics can be summarised as:

- -

Exactly what is suitable then? There is an MSDN topic that suggest that the three choices are List<SqlDataRecord>, a DataTable or a DbDataReader. It turns out that this is not the full story. I have not been able – and nor have I really tried – to find the exact requirements, but it seems that you can pass anything that implements IEnumerable and IDataRecord, and then DataTable is a special case that goes beyond that. Exactly what you can use and not use is not particularly interesting. I would suggest that in practice you will use one of these four:

- -

Of these, you would use the first two for general-purpose programming. The only reason to pass a DataTable is that you already have the data in such an object. If you have the data somewhere else – in a file, on a wire etc – there is no reason to fill a DataTable when you can use a List which is more lightweight. On the same token, the only reason you would use a DbDataReader, is because you have a DbDataReader anyway. That is, if the data for your TVP comes from an Oracle database, you can pass an OracleDataReader directly – no need to populate a List or a DataTable.

-

For this reason, in this article I focus on the first two alternatives, and all examples use either a custom-written class or a List<SqlDataRecord>.

-

One caveat about DataTable and DbDataReader: if your TVP has an IDENTITY column or a computed column, you may not be able to get these columns to work with your objects. In this case, you can always use a List or a custom-written iterator, since this gives you access to some more options to define the metadata for the TVP, and I will briefly cover how to do this later.

-

About the Sample Code

-

Before we move on, I like to give a quick introduction to the demo files that accompany this article. They are compiled in two zip files, one with the demos in C# and one with the same demos in Visual Basic .NET. Use the language that is the most convenient to you. In the text itself, I sometimes show the code in C# and sometimes in VB .NET. If you are more comfortable with the language I'm not using for the moment, please refer to the corresponding file in the other language. For instance, if I refer to TVPDemo.DemoHelper.cs, you can rely on that there is also a TVPDemo.DemoHelper.vb file in the zip file with the VB code.

-

Beside the source code in C# and VB .NET, the zip files also include an SQL script and a file with sample data for one of the demos. There is also a file compile.bat you can use to compile the files. There are however no project/solution files for Visual Studio, as that goes a little above my head.

-

I will cover the code in the zip files as we arrive to the examples where they belong. There is however one class I like to highlight here and now, and that is the TVPDemo.DemoHelper class. This class includes some utility routines that are of little interest for the article as such. There is one thing I like to highlight, though, to wit the connection string:

-
private const string connstr =
-        "Application Name=TVPdemo;Integrated Security=SSPI;" +
-        "Data Source=.;Initial Catalog=tempdb";
-

You may have to change it to fit your environment. Particularly, if you only have Express Edition installed, you should probably use .\SQLEXPRESS for Data Source instead of the single dot.

-

In the article, the code mainly appears without comments, since I explain the code in the text. However, in the source files, the code is thoroughly commented.

-

Disclaimer: My expertise is in SQL Server, and I only write .NET code left-handedly. While I have done my best to adhere what I think is best practice, you may see things which makes you think "I would never do something like that". It is not unlikely that you will be right. Please let me know in such case!

-

Sending a Comma-Separated List to SQL Server

-

The Arrays and Lists articles take their base in the problem of using a comma-separated list in SQL Server. Programmers often encounter them, because there are form controls that produce such lists. (Or so the .NET programmers I know keep telling me.) The other articles in this series present solutions to transform these lists into a table in SQL Server. Here I'm showing you a much better solution: transform the list in the client and pass it to a table-valued parameter. SQL Server should spend its resources on reading and writing tabular data, not string processing. Not only are the resources better spent this way, the solution is also much simpler and cleaner with help of the class CSV_splitter that I will introduce.

-

Using the CSV_splitter Class

-

Using the CSV_splitter class is extremely simple. All your application code sees is a call to the constructor and that's it. Here is an example where we call a stored procedure with a TVP. We use the table type and the stored procedure I used in the T‑SQL section above.:

-
CREATE TYPE integer_list_tbltype AS TABLE (n int NOT NULL PRIMARY KEY)
-go
-CREATE PROCEDURE get_product_names @prodids integer_list_tbltype READONLY AS
-   SELECT p.ProductID, p.ProductName
-   FROM   Northwind.dbo.Products p
-   WHERE  p.ProductID IN (SELECT n FROM @prodids)
-

In the set of demo files you find CSVDemo.vb which includes the -procedure CSV_to_SP that calls get_product_names, and it is no more complicated -than this.

-
Private Sub CSV_to_SP()
-
-   Using cn As SqlConnection = TVPDemo.DemoHelper.SetupConnection(), _
-         cmd As SqlCommand = cn.CreateCommand()
-
-      cmd.CommandType = CommandType.StoredProcedure
-      cmd.CommandText = "dbo.get_product_names"
-
-      cmd.Parameters.Add("@prodids", SqlDbType.Structured)
-      cmd.Parameters("@prodids").Direction = ParameterDirection.Input
-      cmd.Parameters("@prodids").TypeName = "integer_list_tbltype"
-      cmd.Parameters("@prodids").Value = _ 
-                new TVPDemo.CSV_splitter("9,12,27,37")
-
-      Using da As new SqlDataAdapter(cmd), _
-            ds As new DataSet()
-         da.Fill(ds)
-         TVPDemo.DemoHelper.PrintDataSet(ds)
-      End Using
-   End Using
-End Sub
-

To a large extent, very typical code to call a stored procedure. We first set up a connection and create a command object. We move on to state which stored procedure to call, and we define the single parameter that get_product_names accepts. Finally, we invoke the procedure, and in this example I have chosen to use DataAdapter.Fill together with a method in my DemoHelper class that prints the result set. In a real-world scenario you may prefer to use ExecuteReader or whatever fits you.

-

(I assume that most readers are acquainted with Using, but in case you are not: this statement permits you to declare a variable - that is accessible in the enclosed block, and when the block exits, any Dispose method of the class will be invoked. This is - highly recommendable for SqlConnection and SqlCommand objects. If you just leave it to garbage collection to take care of -them, you may spew SQL Server with a lot of extra connections. Using is available in C# as well, but spelt using.)

-

The interesting part is the four statements that set up the parameter. The first adds the parameter and defines the type:

-
cmd.Parameters.Add("@prodids", SqlDbType.Structured)
-

For a table-valued parameter, you always specify SqlDbType.Structured here.

-
cmd.Parameters("@prodids").Direction = ParameterDirection.Input
-

Specifying the direction of the parameter is somewhat superfluous; since TVPs are read-only, Input is the only choice. Nevertheless, I have included it for clarity. Next we introduce the name of the table type in SQL Server, by setting the special parameter property TypeName:

-
cmd.Parameters("@prodids").TypeName = "integer_list_tbltype"
-

Strictly speaking, this is not necessary when calling a stored procedure, since SQL Server knows the type anyway. - However, it is definitely best practice to always specify the type. For - one thing, this will give you a clearer error message when there is a mismatch between the structure you pass from the client and the table type in SQL Server.

-

And now – drum roll! – it's time pass an actual value to the TVP:

-
cmd.Parameters("@prodids").Value = new TVPDemo.CSV_splitter("9,12,27,37")
-

You create a new CSV_splitter object which you pass as the parameter value. And as the parameter to the constructor you pass your list of comma-separated integers. Since this is a sample, the list is a constant; in practical code you would of course have a variable here.

-

All you need to do to get this to work is to put the CSV_splitter class in place. Which is very simple, since the code is included in the download files. You only need to change the namespace to fit your local conventions. The joy is that this class is perfectly reusable, and while I will cover the internals of the class in a second, all you really need to know if you are in a hurry is this:

- -

You might ask: what if I don't use stored procedures? Can I still use TVPs and the CSV_splitter class? Sure enough. The file CSVDemo.vb also includes this routine:

-
Private Sub CSV_to_SQL()
-
-   Using cn As SqlConnection = TVPDemo.DemoHelper.SetupConnection(), _
-         cmd As SqlCommand = cn.CreateCommand()
-
-      cmd.CommandType = CommandType.Text
-      cmd.CommandText = " SELECT p.ProductID, p.ProductName " & _
-                        " FROM   Northwind.dbo.Products p " & _
-                        " WHERE  p.ProductID IN (SELECT n FROM @prodids)"
-
-      cmd.Parameters.Add("@prodids", SqlDbType.Structured)
-      cmd.Parameters("@prodids").Direction = ParameterDirection.Input
-      cmd.Parameters("@prodids").TypeName = "integer_list_tbltype"
-      cmd.Parameters("@prodids").Value = _ 
-          New TVPDemo.CSV_splitter("1, 11, 76, 34")
-
-      Using da As new SqlDataAdapter(cmd), _
-            ds As new DataSet()
-         da.Fill(ds)
-         TVPDemo.DemoHelper.PrintDataSet(ds)
-      End Using
-   End Using
-End Sub
-

It is very similar to CSV_to_SP. The one thing to observe is this line:

-
   cmd.Parameters("@prodids").TypeName = "integer_list_tbltype"
-

When you use CommandType.Text, it is compulsory to specify the name of the table type. For stored procedures you can leave it out, but as I noted above, best practice is to always include the type name.

-

Inside the CSV_splitter Class

-

As I discussed above, the object you pass as the value for a TVP must implement IEnumerable<SqlDataRecord> and IEnumerator<SqlDataRecord>. I guess most .NET programmers understand what this means. In case you don't: an interface consists of a number of members with well-defined signatures, but without any code. To implement an interface you write a class that includes the members of the interface with exactly those signatures – now with code added. To this you can add other members as you like. You don't have to worry too much about inadvertently leaving something out – the compiler will inform you of any small detail you forget. Some interfaces feature over 20 members, but these two interfaces are quite slender with in total four methods and one property.

-

While the main purpose is to feed a table-valued parameter, it is worth noting that since CSV_splitter implements IEnumerable, you can use the class in this way.

-
foreach (SqlDataRecord rec in new TVPDemo.CSV_splitter("1,2,3,4")) {
-   Console.WriteLine (rec.GetInt64(0).ToString());
-}
-

Not that this is particularly useful, but it gives an understanding what this is all about.

-

I will now walk you through the inside of the CSV_splitter class, which you find in TVPDemo.CSV_splitter.cs. For reference, here is the using section:

-
using System;
-using System.Collections.Generic;
-using Microsoft.SqlServer.Server;
-

Nothing startling here. (Most people would probably add a few more namespaces, but I refer to some classes in full for clarity.) The class declaration looks like this:

-
public class CSV_splitter : IEnumerable<SqlDataRecord>,
-                            IEnumerator<SqlDataRecord>
-
-

That is, this class implements both IEnumerable and IEnumerator. This is possibly disputable; some people may prefer to have one class per interface, but I could not really see the point in this. (I did say that I'm normally not a .NET programmer, didn't I?)

-

The class has a few private member variables:

-
string        input;         // The input string.
-char          delim;         // The delimiter.
-int           start_ix;      // Start position for current list element.
-int           end_ix;        // Position for the next list delimiter.
-SqlDataRecord outrec;        // The record we use to return data.
-

input is the comma-separated list itself and delim is the delimiter. start_ix and end_ix keep track of where in the string we are. The most interesting member is outrec. As the snippet above shows, each iteration produces an instance of SqlDataRecord and as we shall see, it comes from this outrec variable.

-

To permit for an alternate delimiter, the class has two constructors which in the C# version fork off to a common private method.

-
public CSV_splitter (string  str,
-                     char    delimiter) {
-   constructor(str, delimiter);
-}
-
-public CSV_splitter (string str) {
-   constructor(str, ',');
-}
-
private void constructor(string  str,
-                         char    delimiter) {
-   this.input  = str;
-   this.delim  = delimiter;
-
-   this.outrec = new SqlDataRecord(
-          new SqlMetaData("nnnn", System.Data.SqlDbType.BigInt));
-
-   this.Reset();
-}
-

First the constructor saves the input parameters into the private members. Next comes the key part: the constructor creates an instance of SqlDataRecord that matches the table type for the table-valued parameter. The constructor for SqlDataRecord accepts an array of SqlMetaData objects. (Both these classes are in the Microsoft.SqlServer.Server namespace.) These classes are closely related: the raison d'être for SqlMetaData is exactly to describe a single column in an SqlDataRecord and ultimately a column in SQL Server.

-

SqlMetaData has a whole slew of constructors to accommodate the various data types in SQL Server and I cover some of the variations as we encounter them. For the CSV splitter we use the simplest constructor of them all and pass only the column name and the data type. You may note that the column we define in SqlMetaData differs from the column in integer_list_tbltype on two accounts:

-
    -
  1. The column names are not the same. I have made them different on purpose to show that what names you put in the column definition with SqlMetaData has no importance in the context of passing data to TVPs.
    2. -
  2. The data type is BigInt, while in the table type the column is int. I chose to use BigInt to make the class as general as possible. That is, you can use the class with any integer data type. (Of course, I could have used bigint in the table type as well, but since product IDs in Northwind are int, I used that type.) As we shall see later, this generalism comes with a price.
    3. -
-

The last line in the constructor is a call to Reset which is one of the methods required by the IEnumerator interface. Its task is to initiate start_ix and end_ix, and we set them to values that indicate that we have not starting scanning the string yet:

-
public void Reset() {
-   this.start_ix = -1;
-   this.end_ix   = -1;
-}
-

Next comes the part of the class that implements IEnumerable. This interface requires the implementation of a single method: GetEnumerator, which should return an object that implements IEnumerator. Since the class implements both interfaces, it returns itself:

-
System.Collections.IEnumerator
-     System.Collections.IEnumerable.GetEnumerator() {
-   return this;
-}
-
-public System.Collections.Generic.IEnumerator<SqlDataRecord>
-     GetEnumerator() {
-   return this;
-}
-

What is a little tricky is that the interface IEnumerable<T> requires that you also implement the non-generic version (and for some reason, the latter cannot be public).

-

The interface IEnumerator requires you to implement three methods MoveNext, Reset and Dispose and one read-only property, Current. We have already looked at Reset, and Dispose is only there to permit you to explicitly close files or SQL connections without waiting for garbage collection. That leaves MoveNext and Current as the two interesting members.

-

The purpose of MoveNext is to permit the caller to move to the next value in the iteration which the caller can retrieve with Current. MoveNext is a boolean function and should return true as long as there is a new item to retrieve with Current. If the caller moves past the last item, the method should return false.

-

Here is how CSV_Splitter.MoveNext looks like:

-
public bool MoveNext() {
-   this.start_ix = this.end_ix + 1;
-
-   while (this.start_ix < this.input.Length &&
-          this.input[this.start_ix] == this.delim) {
-      this.start_ix++;
-   }
-
-   if (this.start_ix >= this.input.Length) {
-      return false;
-   }
-
-   this.end_ix = this.input.IndexOf(this.delim, this.start_ix);
-   if (this.end_ix == -1) {
-      this.end_ix = this.input.Length;
-   }
-
-   return true;
-}
-

The first action is to set start_ix to be one step ahead of end_ix. This is followed by a while loop of which the purpose is to skip adjacent delimiters. (Imagine that you have a string like "1,2,,4".) If we at this point find that start_ix is equal to the length of the string, we are past the last character in the string, and we return false to the caller to indicate that the iteration is over.

-

Else start_ix is now at the first character in the next value, and we set end_ix to be at the delimiter following this value. If there is no delimiter after the last value, we pretend that there is one any way. Since there is at least one more value in this case, we return true.

-

That is, all we do here is to position start_ix and end_ix. In the Current property we make use of these values. This property should return the same type as IEnumerable<T> was instantiated with, that is, SqlDataRecord. Here is how our Current property looks like:

-
public SqlDataRecord Current {
-   get {
-      string str = this.input.Substring(this.start_ix,
-                                        this.end_ix - this.start_ix);
-      this.outrec.SetInt64(0, Convert.ToInt64(str));
-      return this.outrec;
-   }
-}
-

We first extract the - substring -between start_ix and end_ix - 1, and then we convert that value to Int64 to set the only column in the outrec which we then return. From a logical point of view, the code could just as well have read:

-
public SqlDataRecord Current {
-   get {
-      string str = this.input.Substring(this.start_ix,
-                                        this.end_ix - this.start_ix);
-      SqlDataRecord outrec = new SqlDataRecord(
-            new SqlMetaData("nnnn", System.Data.SqlDbType.BigInt)); 
-      outrec.SetInt64(0, Convert.ToInt64(str));
-      return outrec;
-   }
-}
-

And there would have been no need to have outrec as a variable on class level, but it seemed to me slightly more efficient to create the record once and reuse it.

-

When you implement IEnumerable<T> you must also implement a non-generic version, and we just let it invoke the generic version.

-
Object System.Collections.IEnumerator.Current {
-   get {
-       return this.Current;
-   }
-}
-What you have seen in MoveNext and Current is fairly normal string-parsing code. There is certainly room for all sorts of improvements: multi-character delimiters, alternate delimiters, trim blanks. (A string like "1,2, ,3" will cause a run-time error in Convert.ToInt64.) If you want to handle comma-separated lists of strings, you can easily clone the class – or make the type a parameter or make the class generic. I leave all these ideas as exercises to the reader. -

To conclude, you can see that implementing a custom-iterator to feed a TVP is by no means any advanced matter, and we will leverage on this later in this article.

-

What About Performance?

-

Before we move on to the next demo, we will learn some more theory, mainly from the perspective of performance. The other Arrays and Lists articles discuss performance, so why not this one? In the first two subsections we will look at how TVPs performs compared to methods where we send a comma-separated list or similar to SQL Server. In the last subsection, we will discuss whether the TVP should have a primary key, and how we can improve performance when we know have data that is sorted. In passing, we will also learn how to work with IDENTITY columns and computed columns in the table type.

-

Performance in SQL Server

-

As you have understood from the fact that I devoted an article solely to table-valued parameters, this is the - preferred method for passing a list of values to SQL Server. One important reason is simplicity: writing a stored procedure that - accepts a table-valued parameter is straightforward. Not that using a list-to-table function is a big deal, but relational databases are centred around tables. And as you have seen, passing a value to - a TVP from ADO .NET is - a very simple affair. TVPs also have the advantage that you can add constraints to the table type to enforce uniqueness or some other type of contract. Nor do you have to worry in your database code about format errors in a comma-separated list.

-

Does this also mean that this method gives you the best performance? In general, yes. In each and - every case? No. When running the tests for the performance appendix, I did find situations where other methods - outperformed TVPs. However, I believe that in the long run TVPs will you give you better performance than any other - method. There are two reasons for this:

-

Data is already in table format. With all other methods, cycles need to be spent on parsing a character string - to get the data into table format. In my tests, the fixed-length method performed better in some tests with integer data. Indeed, this method just chops up a fixed-length string reading from a - table of numbers, so it is very similar to reading from a table variable. However, TVPs have one more ace up the sleeve:

-

The optimizer gets a clue. For all other methods, the optimizer has no understanding of what is going on. - In many situations you get a useful plan nevertheless, but with methods based on inline T‑SQL functions the optimizer often lose grip - entirely and produce a plan that is nothing but a disaster. And even if the plan is useful, it may not be the most optimal because the optimizer - has no idea how many rows your list of values will produce, which means that if you use the list in a query with other - tables, row estimates are likely to be way off.

-

This is different for table-valued parameters. Just like table variables, table-valued parameters do not have - distribution statistics, but there is nevertheless one piece of information: cardinality. That is, the first time you call a procedure that - takes a TVP, the optimizer sniffs the TVP – as sniffs all other parameters – and the optimizer sees that - the TVP has so and so many rows. This gives the optimizer better odds for good estimates for the number of rows in - the rest of the query.

-

Not that it is perfect: There is the general problem that the sniffed value may be atypical. (For a closer discussion on parameter sniffing, see my article Slow in the Application, Fast in SSMS?.) And it - is not always correct information leads to the best plan; in the performance appendix for SQL 2008 you can read about a case where SQL Server chooses an incorrect plan, when it has more accurate cardinality information. But as I discuss in the appendix this concerns only a window of the input size. Furthermore, cardinality is far from sufficient in all cases. Consider the query:

-
SELECT * FROM Orders WHERE CustomerID IN (SELECT custid FROM @custids)
-

Say that there are four values in @custids. If they are just four plain customers, - seeking the non-clustered index on CustomerID is good. But if they are the top four customers accounting for 40 % of the volume, you want a table scan. But - since a TVP does not have distribution statistics, the optimizer - cannot distinguish the cases. The workaround is - simple: bounce the data over a temp table and take benefit of that temp tables have distribution statistics. Since that workaround - is the same as for all list-to-table functions, you may argue that when you need to do this, there is no special - performance advantage of TVPs.

-

Client-side Performance

-

A reasonable question is: does TVP incur more calling overhead than regular parameters? The answer is yes. In my - tests I found that passing 50 000 integer values to an unindexed TVP from ADO .NET took - 40-50 ms compared to - 20-35 ms for a comma-separated list. (Note that these numbers apply to the specific hardware that I used for the tests.) For a TVP with a primary key, the overhead was around 150 ms.

-

While this overhead may seem considerable, you need to put it in perspective - and look at the total execution time, and in most cases, the server-side - execution time exceeds the numbers in the previous paragraph with a wide - margin. As just one - data point: in my test, the server-side execution time for my join test over - 50 000 list elements was 213 ms for a non-indexed TVP, and the best non-TVP method (fixed-length - binary input) needed 420 ms. The performance appendix for SQL 2008 has more details.

-

As for the extra overhead when there is a primary key, we will discuss this more closely in the next section.

-

Primary Keys and Sorted Data – Looking Closer at the SqlMetaData constructors

-

The SqlMetaData class has no less than 15 constructors. They control in total 17 read-only properties – i.e., once set you can't change them. To a great extent which constructor to use depends on the data type. For a string or a binary column you use a constructor that includes the maxLength parameter, for a decimal column you need one that exposes scale and precision etc. I am not covering all constructors and properties here, but I refer you to the .NET documentation.

-

Here I will discuss four parameters to control special properties for table-valued parameters. They appear in several constructors, and a constructor either has all four or none of these parameters. Here is the C# declaration for the simplest of these constructors:

-
public SqlMetaData(       
-    string    name,        
-    SqlDbType dbType,        
-    bool      useServerDefault,        
-    bool      isUniqueKey,        
-    SortOrder columnSortOrder,        
-    int       sortOrdinal)
-

The first of these parameters, useServerDefault, serves a different purpose than the other three. You may guess from the name what it is all about, but your guess may not be exactly right. When you specify this parameter as true, SQL Server will ignore any value you set for the column but always set the column to its default value. Sounds corny? Here is the scoop: the SqlDataRecord must have exactly as many columns as your table type has. But what if your table type includes an IDENTITY column or a computed column which you cannot assign values to? It is for that sort of columns you specify useServerDefault as true. It's also useful for columns with a default of newid() or NEXT VALUE FOR. (The latter is for sequences, a feature added in SQL 2012.)

-

The other three parameters, isUniqueKey, columnSortOrder and sortOrdinal are related and they exist in order to permit a performance enhancement. But before we can discuss what purpose they serve and how they work, we need to take one step back and look at the declaration for the table type we used with get_product_names.

-
CREATE TYPE integer_list_tbltype AS TABLE (n int NOT NULL PRIMARY KEY)
-

The table type has a primary key, and thus it assumes that the values in the TVP are unique. Is this a good thing? To start with, when you design your tables, you should always look for a natural primary key, and this includes table variables and temp tables. One reason is that if you write your code under the assumption that a certain column or a set of columns is unique, you should also state this in the table declaration as an assertion. If your assumption is incorrect, your code will die early and not produce incorrect results.

-

But there is also a performance aspect. Let's look at the code for get_product_names again:

-
CREATE PROCEDURE get_product_names @prodids integer_list_tbltype READONLY AS
-   SELECT p.ProductID, p.ProductName
-   FROM   Northwind.dbo.Products p
-   WHERE  p.ProductID IN (SELECT n FROM @prodids)
-

For SQL Server, the query is equivalent to:

-
SELECT p.ProductID, p.ProductName
-FROM   Northwind.dbo.Products p
-JOIN   @prodids ps ON ps.n = p.ProductID
-

If the table type would not have a primary key, this would not be true. Instead the equivalent query would be:

-
SELECT DISTINCT p.ProductID, p.ProductName
-FROM   Northwind.dbo.Products p
JOIN   @prodids ps ON ps.n = p.ProductID
-

That is, SQL Server would have to add an operator somewhere to remove duplicate values. This comes with an extra cost. Of course, for four values in the TVP this is entirely negligible, but assume that there are has 50 000 values. Now the difference is starting to be measurable, and you can see this in the performance appendix.

-

However, as I noted above, I found in my performance tests that there is considerable difference in overhead when passing data to a TVP with a primary key and one without. And indeed, from what I have said this far, this is a zero-sum game. If the TVP has a primary key, there is no need for a Sort or Hash operator in the query above to remove duplicates. But when the data arrives, SQL Server must sort it so that it can be stored according to the index. Only if the TVP is used in more than one query, there is a performance gain with the primary key.

-

If we don't know anything about the data we are passing to SQL Server, we can't do any better. But what if we know that the data already is sorted according to the index? This is where the three parameters isUniqueKey, columnSortOrder and sortOrdinal come into play. They permit you to specify that the data is sorted and how. isUniqueKey should be true in this case. columnSortOrder can take any of the values SortOrder.Unspecified, SortOrder.Ascending and SortOrder.Descending. (The SortOrder enum is in the System.Data.SqlClient namespace.) For sorted data you would use any of the latter two; Unspecified is the value you use when you use a constructor with these parameters to be able to specify true for useServerDefault. Finally, SortOrdinal specifies where in the unique key the column appears. Use 0 for the first column in the key, 1 for the second etc. Use ‑1 for SortOrder.Unspecified. (If you want to see an example on this, stay tuned. They will be coming.)

-

You need to use these parameters with care. It goes without saying that you need to ensure that the data you have really is sorted. If you sort the data or create the sort keys yourself, you have control, but it may be precarious to rely on data coming from an outside source to be sorted. If you are mistaken, SQL Server will not let you get away with it, but produce an error message like this one.

-
Msg 4819, Severity 16, State: 1, Procedure , Line no: 0
-Cannot bulk load. The bulk data stream was incorrectly specified as sorted or the 
-data violates a uniqueness constraint imposed by the target table. Sort order
-incorrect for the following two rows: primary key of first row: (gamma), primary
-key of second row: (delta).
-Msg 3621, Severity 0, State: 0, Procedure , Line no: 1
-The statement has been terminated.
-

There is another thing to watch out for, and in this case SQL Server will stay silent. Inspired by what we have read, we may get the idea to change the constructor for the CSV_splitter class, so that outrec is created in this way:

-
 this.outrec = new SqlDataRecord(
-      new SqlMetaData("nnnn", SqlDbType.BigInt, 
-                      false, true, SortOrder.Ascending, 0));
-

If you make this change and then run the CSVdemo program, you will find that it runs just fine. But wait! In the procedure CSV_to_SQL there is this line:

-
 cmd.Parameters("@prodids").Value = New TVPDemo.CSV_splitter("1, 11, 76, 34")
-

Data is out of order, so an error message is to be expected. Still we did not get any. Why? Recall that CSV_splitter uses BigInt to be as reusable as possible, while the table type has an integer column. Because of the data-type mismatch, SQL Server decides to ignore the information that the data is sorted and sorts it anyway. If you change the type to SqlDbType.Int and try again, you will get the error message above.

-

Thus, to be sure that SQL Server does not decide to sort behind your back, you should make sure that you create the SqlDataRecord object so that it matches your table type exactly. To be precise, you can have a mismatch as long as SQL Server feels that it can trust the conversion to not affect the sort order. If you want to be sure, the simplest way to test is to send data out of order. If you get error message 4819, the plot worked, else it did not. You can also use Profiler, and include the event Performance:Show Statistics XML Profile and run the application. If you also add SP:StmtCompleted you will see the insertion into the TVP as encrypted text. This helps you to locate the query plan, and it should not include a Sort or Hash operator.

-

Character data is particularly difficult in this context. The first thing to note is that the length must match. That is, if you define the column in .NET as

-
new SqlMetaData("charcol", SqlDbType.NVarChar, 120, 
-                false, true, SortOrder.Ascending, 0);
-

but the target column is nvarchar(20), SQL Server will ignore your sorting parameters and sort the data. Another complication is that character data can be sorted in many ways, that is, according to different collations. If you look through the constructors for SqlMetaData you will find two parameters localeID and compareOptions which seem like they could be used to specify the collation. I tested this, but I found that they had no effect. From what I can tell, SQL Server assumes that character data is always sorted according to the database collation. If the data you send with the TVP is sorted according to a different collation, you will get an error once there is a deviation. You can of course specify an explicit collation for the column in the table type, and it may save you from error messages about data being non-unique. However, my testing indicates that if a key column has a different collation from the database collation, SQL Server will ignore the sorting parameters and always sort the incoming data stream.

-

Loading Data through Table-Valued Parameters

-

We will look at one more example. This time we will see how we can use table-valued parameters to easily load lots of data to SQL Server. There are several other options for this task: BCP, BULK INSERT, SQL Server Integration Services and the SqlBulkCopy class. But none these options permit you to send data directly to a stored procedure. We will learn two ways to do this. The plain way where we read the file into memory and a more efficient way where we stream the file to the TVP. I've taken the opportunity to cover some ground beyond the topic of TVPs, so you may learn some other tricks in this chapter as well.

-

The Setup

-

For this example we will look at loading data into these two tables:

-
CREATE TABLE Albums (AlbumID     int           IDENTITY,
-                     Artist      nvarchar(200) NOT NULL,
-                     Title       nvarchar(200) NOT NULL,
-                     ReleaseDate date          NULL,
-                     Length      time(0)       NULL,
-                     CONSTRAINT pk_Albums PRIMARY KEY (AlbumID)
-)
-
-CREATE TABLE Tracks (AlbumID     int           NOT NULL,
-                     TrackNo     tinyint       NOT NULL,
-                     Title       nvarchar(200) NOT NULL,
-                     Length      time(0)       NULL,
-                     CONSTRAINT pk_Tracks PRIMARY KEY (AlbumID, TrackNo),
-                     CONSTRAINT fk_Tracks_Albums FOREIGN KEY(AlbumID)
-                     REFERENCES Albums(AlbumID)
-)
-

We have a music collection, and Albums includes information about an album, and Tracks details the tracks for the albums. All and all, a fairly typical master-detail scenario. These table definitions, as well as other SQL code in this chapter, are inclued in the file fileloaddemo.sql which you find among the demo files.

-

Our task is to load new albums with their tracks into the database, from the file Albums.csv which is also included in the demo files. Here are some sample lines from this file:

-
A,Adrian Belew,Desire Caught By the Tail,,33:25
-T,1,Tango Zebra,458553,
-T,2,Laughing Man,332460,
-T,3,The Gypsy Zurna,187141,
-T,4,Portrait of Margaret,240718,
-T,5,Beach Creatures Dancing Like Cranes,197564,
-T,6,At the Seaside Cafe,113319,
-T,7,Guernica,127216,
-T,8,"""Z""",338416,
-A,"Al di Meola, John McLaughlin, Paco de Lucia",Friday Night in San Francisco,8/10/1981,42:09
-T,1,A. Mediterranean Sundance-B. Rio Ancho,708780,
-T,2,Short Tales of the Black Forest,535484,
-T,3,Frevo Rasgado,486608,
-T,4,Fantasia Suite,541492,
-T,5,Guardian Angel (McLaughin),247066,
-A,David Bowie,"""Heroes""",14/10/1977,40:56
-T,1,Beauty and the Beast,217182,
-

The first field defines whether the line contains an album (A) or a track (T). On an Album line, the fields are Artist. Album title, Release date and Length in minutes and seconds. On a Track line, the fields are Track number, Track title and Length in milliseconds. That is, the fields are the same as in the tables, except for one thing: there is no AlbumID. It is part of our loading task to assign this id.

-

As for the format, you can note that some fields are quoted in double quotes, but this happens only when the field includes a comma or a double quote. Some fields include a plethora of double quotes; this happens when the double quotes are part of the value. (You may recall that the name of David Bowie's classic album from 1977 really is "Heroes" with quotes and all.)

-

An aside: you cannot load this file with BCP or BULK INSERT in a simple way. To start with, they cannot really cope with master-detail formats at all, but you would have to load the data into a staging table to be able to separate albums and tracks. And this is only possible it there is an equal number of fields on each line. As it happens, Excel – which I used to create this file – was kind to add an extra comma at the end of the Tracks lines, so this is not an issue here. Instead, the real killer is the inconsistent quoting. As long as a field is consistently quoted through a file, you can load quoted fields with BCP or BULK INSERT, if you use a format file that specifies delimiters that include the quotes. But in this file where only some values are in quotes and where these values include the field delimiter, BCP and BULK INSERT are completely lost. These tools are designed to read a binary stream, and do they not do string parsing.

-

We need two table types and a stored procedure. The table types mirror the file with one addition:

-
CREATE TYPE Albums_tbltype AS TABLE
-     (TempID      int           NOT NULL,
-      Artist      nvarchar(200) NOT NULL,
-      Title       nvarchar(200) NOT NULL,
-      ReleaseDate date          NULL,
-      Length      time(0)       NULL,
-      PRIMARY KEY (TempID)
-)
-
-CREATE TYPE Tracks_tbltype AS TABLE
-     (TempID      int           NOT NULL,
-      TrackNo     tinyint       NOT NULL,
-      Title       nvarchar(200) NOT NULL,
-      Length      time(0)       NULL,
-      PRIMARY KEY (TempID, TrackNo)
-)
-go
-

Since there is no album ID in the file, the loading process must assign new ids. As long as we have the file, we know which tracks that go with which albums, since the file is ordered. But when we load the data into different tables that order is lost, since tables are unordered objects by definition. For this reason, both table types include a column TempID, which is a temporary ID that uniquely identifies an album during the loading process.

-

The stored procedure is worth dwelling on for an extra second:

-
CREATE PROCEDURE LoadAlbums @Albums Albums_tbltype READONLY,
-                            @Tracks Tracks_tbltype READONLY AS
-
-DECLARE @idmap TABLE (TempID  int NOT NULL PRIMARY KEY,
-                      AlbumID int NOT NULL UNIQUE)
-
-SET XACT_ABORT ON
-BEGIN TRANSACTION
-
-MERGE Albums A
-USING @Albums T ON 1 = 0
-WHEN NOT MATCHED BY TARGET THEN
-   INSERT(Artist, Title, ReleaseDate, Length)
-      VALUES(T.Artist, T.Title, T.ReleaseDate, T.Length)
-OUTPUT T.TempID, inserted.AlbumID INTO @idmap(TempID, AlbumID)
-;
-
-INSERT Tracks(AlbumID, TrackNo, Title, Length)
-   SELECT i.AlbumID, T.TrackNo, T.Title, T.Length
-   FROM   @Tracks T
-   JOIN   @idmap i ON i.TempID = T.TempID
-
-COMMIT TRANSACTION
-go
-

To start with, the procedure sets up a user-defined transaction so that we don't end up loading only the albums. While I am a strong advocate of error handling, I don't use TRY-CATCH here. In the interest of brevity, I let it suffice with SET XACT_ABORT ON to make sure that any error aborts and rolls back the transaction. (If you want directions for error handling, please see my article Error Handling in SQL Server 2005 and Later.)

-

What may surprise the reader is the MERGE statement. This is a pure insert operation (for the sake of the example, I am completely ignoring that the album may already be in the database), so why use MERGE? And with that weird condition 1 = 0? By using this condition we make sure that no rows in the source match the target. That is, all rows in @Albums will match the condition WHEN NOT MATCHED BY TARGET, and thus all rows in @Albums will be inserted into Albums. Or in another words, this is a complicated way of saying:

-
INSERT Albums(Artist, Title, ReleaseDate, Length)
-   SELECT Artist, Title, ReleaseDate, Length
-   FROM   @Albums
-

Why all this? The answer lies in the OUTPUT clause. We need to map the TempID in @Albums to the IDENTITY values generated for AlbumID in Albums, so that we can insert the correct AlbumID values into Tracks, and this is the purpose of the table variable @idmap. If you try to make the mapping with INSERT, you will find that this does not work, because in the OUTPUT clause for INSERT you only have access to the columns in the target table. This is different with MERGE; with MERGE you have access to both target and source columns in the OUTPUT clause.

-

When inserting into Tracks there is no need for extra fireworks, and we can use plain INSERT where we pick up the album IDs from the @idmap table.

-

Take One: Reading the File Into a List

-

There are two example programs to load the file, and we will first look at fileloaddemo1.cs which reads the file into two List<SqlDataRecord>, one for albums and one for tracks. This program starts of with a number using clauses, of which one may be surprising:

-
using System;
-using System.Data;
-using System.Data.SqlClient;
-using System.Collections.Generic;
-using Microsoft.SqlServer.Server;
-using Microsoft.VisualBasic.FileIO;
-

System is needed as always of course, and System.Data includes SqlDBType and more. SqlClient is what this text is all about. We need System.Collections.Generic for the class List<T>, and as noted previously we get SqlDataRecord and SqlMetaData from Microsoft.SqlServer.Server. But staunch fans of C# may be appalled by the appearance of Visual Basic here. As I pointed out above, the format of this file is somewhat complex. While I could have written the code to parse the lines on my own, I said to myself "this file has been generated by Excel; there must be code out there that performs this task". So I did a search on Google, and I was quickly pointed to the class TextFieldParser that exists in the namespace Microsoft.VisualBasic.FileIO.

-

If you want to use this class from C#, you need to add a reference to Microsoft.VisualBasic.dll. VB programmers get this DLL automatically.

-

Fileloaddemo1 includes two routines of interest, read_file and load_albums. The latter first calls read_file and then calls the stored procedure LoadAlbums. We will look at read_file first. Here is the declaration:

-
private static void read_file (string                     filename,
-                               out    List<SqlDataRecord> albums,
-                               out    List<SqlDataRecord> tracks) {
-

It accepts a file name and return album and track data in the two List parameters. The first few lines in read_file are pretty dull:

-
 System.Globalization.DateTimeFormatInfo no_culture =
-     new System.Globalization.DateTimeFormatInfo();
- System.Globalization.DateTimeStyles no_datetime_style =
-     System.Globalization.DateTimeStyles.None;
-
 int album_no = 0;
-

The two items from System.Globalization are some jazz needed when we parse the date and time fields, I'll return to them later. The variable album_no is more interesting: this variable will feed the TempID columns in the table parameters.

-

The next two statements are significantly hotter, because this is where we set up the SqlMetaData definitions that map to our table types:

-
SqlMetaData[] albums_tbltype =
-    { new SqlMetaData("id", SqlDbType.Int, false,
-                      true, SortOrder.Ascending, 0),
-      new SqlMetaData("artist", SqlDbType.NVarChar, 200),
-      new SqlMetaData("album", SqlDbType.NVarChar, 200),
-      new SqlMetaData("released", SqlDbType.Date),
-      new SqlMetaData("length", SqlDbType.Time, 0, 0)};
-
-SqlMetaData[] tracks_tbltype =
-    { new SqlMetaData("id", SqlDbType.Int, false,
-                      true, SortOrder.Ascending, 0),
-      new SqlMetaData("trackno", SqlDbType.TinyInt,  false,
-                      true, SortOrder.Ascending, 1),
-      new SqlMetaData("title", SqlDbType.NVarChar, 200),
-      new SqlMetaData("length", SqlDbType.Time, 0, 0)};
-

In difference to the CSV_splitter class, we don't create any SqlDataRecord at this point; since we are adding to a List, we will need a new SqlDataRecord object each time. Whence, we only create the SqlMetaData arrays in advance.

-

Here we see some more examples of using the special parameters for the SqlMetaData constructor to specify that the data is sorted. For albums_tbltype there is a single column in the sort key, while for tracks_tbltype there is a composite key and as you see we specify that both columns are unique. We set the parameter sortOrdinal to 0 and 1 respectively. Admittedly, to some extent this contradicts what I said previously about ensuring that the data is sorted. The id columns are no problem; we are generating the id values in our code and we have full control over them. But the track numbers comes from the file and in a real-world scenario, we may not be able to rely on that the track numbers come in numeric order.

-

Here are also examples of SqlMetaData constructors where we specify the length for the string columns. For the time columns we need to use a constructor that exposes scale and precision, even if time only has one of them.

-

In the C# version we create the lists at this point:

-
albums = new List<SqlDataRecord>();
-tracks = new List<SqlDataRecord>();
-

(In the VB code this happens in load_albums since VB did not seem to like it when I passed uninitialised variables.)

-

Next we open the file by creating a TextFieldParser object:

-
TextFieldParser fp = new TextFieldParser(filename,
-                                         System.Text.Encoding.Default);
-

In total, this class offers eight different constructors. For this demo, we use one where we pass the name of the file (there are also constructors accept a Stream object instead) and the encoding. The default for the TextFieldParser is UTF-8, but CSV files from Excel appears to always be ANSI files. (And since one of the tracks from "Heroes" is called Neuköln it matters for the sample file.)

-

We need to configure our newly created object:

-
fp.TextFieldType = FieldType.Delimited;
-fp.Delimiters = new String[] {","};
-fp.HasFieldsEnclosedInQuotes = true;
-

The TextFieldParser can handle both delimited files and fixed-length formats. Here we set up the file to be comma-delimited. We also specify that there are fields enclosed in quotes. Yet an option, that we don't make use of, is to specify comment tokens.

-

Once this is done, we have completed the preparations and can read the file.

-
while (! fp.EndOfData) {
-   String[] fields = fp.ReadFields();
-

The ReadFields method consumes the next set of fields and returns them in a string array. (If the file does not comply with the expected format, the method will throw an exception, but I have not included any error handling to keep the example down in length.) Depending on fields[0] we take different paths:

-
if (fields[0] == "A") {
-   SqlDataRecord album_rec = new SqlDataRecord(albums_tbltype);
-
   album_rec.SetInt32(0, ++album_no);
-   album_rec.SetString(1, fields[1]);
-   album_rec.SetString(2, fields[2]);
-

If we have an A in the first field, we create an SqlDataRecord that aligns with the table type for albums, and then we go on and populate the fields, using various Set methods of the SqlDataRecord class. Above, we save the temporary id (which we first increment), the artist name and the album title. As you see, we refer to the columns by number, starting on 0. If you prefer to access the columns by name, you need to use the GetOrdinal method:

-
album_rec.SetInt32(album_rec.GetOrdinal("id"), ++album_no);
-album_rec.SetString(album_rec.GetOrdinal("artist"), fields[1]);
-album_rec.SetString(album_rec.GetOrdinal("album"), fields[2]);
-

Note here that you need to use the name you specified in the SqlMetaData constructor; you cannot use the names in the table type.

-

The ReleaseDate column is a little more complex for two reasons: it is permitted to be NULL, and date formats are always problematic. Here is the code:

-
 DateTime releasedate;
- bool date_ok = DateTime.TryParseExact (
-                  fields[3], "d/MM/yyyy", no_culture, no_datetime_style,
-                  out releasedate);
- if (date_ok) {
-    album_rec.SetDateTime(3, releasedate);
- }
- else {
-    album_rec.SetDBNull(3);
- }
-

We use TryParseExact to see if there is a legit date in the field. It just so happens that the dates in the file are on the format DD/MM/YYYY, because I generated the CSV file with my regional settings set to English (Australia). (Had I used my regular Swedish settings, the CSV file would have had semicolon as delimiter, which would have been less interesting with regards to the double quotes.) When reading dates from text input – be that a file or text box – you should never assume that all dates are well-formed. There may be a mix of different date formats, and there may be completely bogus dates like 1992-02-30. If the parsing succeeds, we set the date column in album_rec, else we set it to NULL.

-

When I composed this demo program, the release date proved to be the most difficult to get right. It turned out that it is not sufficient to specify an exact date format. When I tested the program, I had switched back to Swedish settings where the date format is YYYY-MM-DD. Eventually I found that I could not leave the third parameter null, but I had to use an explicit value to state that I wanted to ignore regional settings, whence this no_culture. no_datetime_style is the value for an enum parameter which is mandatory with TryParseExact.

-

The last album field is the length, which is handled similarly:

-
DateTime length;
-bool length_ok = DateTime.TryParseExact(
-                   fields[4], new string [] {"h:m:ss", "m:ss"},
-                   no_culture, no_datetime_style,
-                   out length);
-if (length_ok) {
-   album_rec.SetTimeSpan(4, length.TimeOfDay);
-}
-else {
-   album_rec.SetDBNull(4);
-}
-

The only thing that is different is that I permit for time formats both with and without hours, since an album may exceed one hour in length.

-

When all this is done, we add the record to the albums list:

-
albums.Add(album_rec);
-
-

The code for dealing with the tracks data is similar with a sanity check - added.

-
else if (fields[0] == "T") {
-   if (album_no == 0) {
-      throw new Exception("Bad file format: track rows before the first album row!");
-   }
-   SqlDataRecord track_rec = new SqlDataRecord(tracks_tbltype);
-
-   track_rec.SetInt32(0, album_no);
-   track_rec.SetByte(1, Convert.ToByte(fields[1]));
-   track_rec.SetString(2, fields[2]);
-
-   if (fields[3] != "") {
-      TimeSpan length = TimeSpan.FromMilliseconds(Convert.ToInt32(fields[3]));
-      track_rec.SetTimeSpan(3, length);
-   }
-   else {
-      track_rec.SetDBNull(3);
-   }
-
-   tracks.Add(track_rec);
-}
-

Here is the code for load_albums:

-
private static void load_albums() {
-
-   List<SqlDataRecord> albums;
-   List<SqlDataRecord> tracks;
-
-   read_file("albums.csv", out albums, out tracks);
-
-   using (SqlConnection cn = TVPDemo.DemoHelper.setup_connection())
-   using (SqlCommand cmd = cn.CreateCommand()) {
-
-      cmd.CommandType = CommandType.StoredProcedure;
-      cmd.CommandText = "dbo.LoadAlbums";
-
-      cmd.Parameters.Add("@Albums", SqlDbType.Structured);
-      cmd.Parameters["@Albums"].Direction = ParameterDirection.Input;
-      cmd.Parameters["@Albums"].TypeName = "Albums_tbltype";
-      cmd.Parameters["@Albums"].Value = albums;
-
-      cmd.Parameters.Add("@Tracks", SqlDbType.Structured);
-      cmd.Parameters["@Tracks"].Direction = ParameterDirection.Input;
-      cmd.Parameters["@Tracks"].TypeName = "Tracks_tbltype";
-      cmd.Parameters["@Tracks"].Value = tracks;
-
-      cmd.ExecuteNonQuery();
-   }
-}
-

It first calls read_file to fill albums and tracks, and then it calls the stored procedure LoadAlbums. The only difference to the code we saw for comma-separated list is this line:

-
cmd.Parameters["@Albums"].Value = albums;
-

That is, we pass a List object and not an custom-written iterator.

-

While this code may seem trivial, it is worth emphasising the flexibility. Here we pass a List object, but if we would change our mind and want to pass something else, we can do that very easily. In fact, this is exactly what we will do in a second.

-

Take Two: Streaming the File

-

The sample file that comes with this article is short; there are only five albums. But imagine that you have a very large file, tens of megabytes in size. With the solution above, you would have to read the entire file into memory before you start sending the data to SQL Server. Is that really necessary? No, and you might already have guessed how we can approach this. If we can write a custom-iterator for a comma-separated list, we should be able to write an iterator that reads the file, so that SqlClient can send a row to SQL Server as soon as we have read it.

-

Now, the fact that this is a mater-detail file makes this a little more complicated. If we have two TVPs, we would need two iterator classes, one for albums and one for tracks. And these classes would both have to read the file, which thus would be read twice. To avoid this, I decided to use a single table type that can accommodate both row types. Depending on how different headers and details are from each other, this can be quite messy. Thankfully, our albums-and-tracks example is quite forgiving in this sense. (At this point I can sense objection from some readers who think that it is possible to have two table types and still only read the file once. Permit me to come back to this idea after I have gone through the streaming example.)

-

Here is the table type (which you also find in fileloaddemo.sql):

-
CREATE TYPE AlbumTracks_tbltype AS TABLE 
-    (TempID      int           NOT NULL,
-     TrackNo     tinyint       NOT NULL,
-     Artist      nvarchar(200) NULL,
-     Title       nvarchar(200) NOT NULL,
-     ReleaseDate date          NULL,
-     Length      time(0)       NULL,
-     PRIMARY KEY (TempID, TrackNo),
-     CHECK (TrackNo = 0 AND Artist IS NOT NULL 
-         OR TrackNo > 0 AND Artist IS NULL 
-                        AND ReleaseDate IS NULL)
-)
-

I did not add the A/T field to the table type; instead I use TrackNo as the distinguishing column; TrackNo = 0 indicates that this is a header row. I've also added constraints to state rules that are unique for album rows (Artist must be present) and track rows (must not have Artist and ReleaseDate). Such CHECK constraints help to detect errors in the client program.

-

To use this table type, there is a second stored procedure, similar to the one we looked at previously:

-
CREATE PROCEDURE LoadAlbums_2 @AlbumTracks AlbumTracks_tbltype READONLY AS
-
-DECLARE @idmap TABLE (TempID  int NOT NULL PRIMARY KEY,
-                      AlbumID int NOT NULL UNIQUE)
-
-SET XACT_ABORT ON
-BEGIN TRANSACTION
-
-MERGE Albums A
-USING (SELECT TempID, Artist, Title, ReleaseDate, Length
-       FROM   @AlbumTracks
-       WHERE  TrackNo = 0) AT ON 1 = 0
-WHEN NOT MATCHED BY TARGET THEN
-   INSERT(Artist, Title, ReleaseDate, Length)
-      VALUES(AT.Artist, AT.Title, AT.ReleaseDate, AT.Length)
-OUTPUT AT.TempID, inserted.AlbumID INTO @idmap(TempID, AlbumID)
-;
-
-INSERT Tracks(AlbumID, TrackNo, Title, Length)
-   SELECT i.AlbumID, AT.TrackNo, AT.Title, AT.Length
-   FROM   @AlbumTracks AT
-   JOIN   @idmap i ON i.TempID = AT.TempID
-   WHERE  AT.TrackNo > 0
-
-COMMIT TRANSACTION
-

In demo files, there is a sample program fileloaddemo2.vb that calls this procedure. Here is the code that calls LoadAlbums_2:

-
Private Sub LoadAlbums
-
-   Using cn As SqlConnection = TVPDemo.DemoHelper.SetupConnection(), _
-         cmd As SqlCommand = cn.CreateCommand()
-
-      cmd.CommandType = CommandType.StoredProcedure
-      cmd.CommandText = "dbo.LoadAlbums_2"
-
-      cmd.Parameters.Add("@AlbumTracks", SqlDbType.Structured)
-      cmd.Parameters("@AlbumTracks").Direction = ParameterDirection.Input
-      cmd.Parameters("@AlbumTracks").TypeName = "AlbumTracks_tbltype"
-
-      cmd.Parameters("@AlbumTracks").Value = _
-             new TVPDemo.AlbumReader("Albums.csv")
-
-      cmd.ExecuteNonQuery()
-   End Using
-End Sub
-

You have seen this pattern a couple of times now. What is different from fileloaddemo1 is that there is no call to read_file, but instead there is an instantiation of the class TVPDemo.AlbumReader. This is analogous to when we worked with comma-separated strings of integers, and when we look inside TVPDemo.AlbumReader.vb there is a mix of what we saw in CSV_splitter.cs and fileloaddemo1.cs. The most startling difference may be that this time I show the code is in Visual Basic... So I will rash through the code fairly quickly. The important takeaway is that writing a class that streams a file to a TVP is by no means complicated.

-

Here is the Imports section:

-
Imports System
-Imports System.Data
-Imports System.Collections.Generic
-Imports Microsoft.SqlServer.Server
-Imports Microsoft.VisualBasic.FileIO
-

Again Microsoft.VisualBasic.FileIO is featured, but I like to remind you that the choice of using the TextFieldParser class is due to the specific file format. While it is likely to be useful for CSV files in general, you may have a file format for which it is less suitable. Particularly, it is not that you need to use this class only because you are streaming to a TVP.

-

The class declaration:

-
 Public Class AlbumReader 
-    Implements IEnumerable(Of SqlDataRecord), _
-               IEnumerator(Of SqlDataRecord)
-

is no different from the CSV_splitter. I implement both interfaces in the same class. There are some global members:

-
Dim AlbumNo As Integer        ' Current album.
-Dim fp As TextFieldParser     ' Our file-reading class.
-Dim Outrec As SqlDataRecord   ' The record we use to return data.
-
-Dim NoCulture As New System.Globalization.DateTimeFormatInfo 
-Dim NoDateTimeStyle As System.Globalization.DateTimeStyles = _
-    System.Globalization.DateTimeStyles.None
-

AlbumNo is the TempID for the current album and fp is the object for the file we are reading. Outrec is a single output record that I reuse just like in the CSV_splitter class. Then follows the System.Globalization jazz.

-

The constructor:

-
Public Sub New (FileName As String) 
-   Me.AlbumNo = 0
-
-   Me.Outrec = new SqlDataRecord( _
-        New SqlMetaData("id", SqlDbType.Int, false, _
-                       true, System.Data.SqlClient.SortOrder.Ascending, 0), _
-        New SqlMetaData("trackno", SqlDbType.TinyInt,  false, _
-                        true, System.Data.SqlClient.SortOrder.Ascending, 1), _
-        New SqlMetaData("artist", SqlDbType.NVarChar, 200), _
-        New SqlMetaData("title", SqlDbType.NVarChar, 200), _
-        New SqlMetaData("released", SqlDbType.Date), _
-        New SqlMetaData("length", SqlDbType.Time, 0, 0))
-
-   Me.fp = New TextFieldParser(FileName, System.Text.Encoding.Default)
-   fp.TextFieldType = FieldType.Delimited
-   fp.Delimiters = New String() {","}
-   fp.HasFieldsEnclosedInQuotes = True
-End Sub
-

Again, we take the occasion to state that our TVP is sorted to save SQL Server from sorting when the data arrives. The last few lines set up the TextFieldParser class for reading a CSV file.

-

Next comes GetEnumerator and in Visual Basic, the two functions must have different names:

-
Function GetEnumerator_nongeneric As System.Collections.IEnumerator _
-   Implements System.Collections.IEnumerable.GetEnumerator
-   Return Me
-End Function
-
Public Function GetEnumerator_generic As IEnumerator (Of SqlDataRecord) _
-   Implements IEnumerable (Of SqlDataRecord).GetEnumerator
-   Return Me
-End Function
-

Observe here that this is identical to CSV_splitter.vb, and trust me: the implementation in AlbumReader.cs looks exactly to what I showed you for the CSV_splitter class. That is, as long as you follow the pattern with implementing IEnumerable and IEnumerator in the same class, GetEnumerator will always look the same.

-

The Reset method is somewhat brutal:

-
Public Sub Reset Implements IEnumerator(Of SqlDataRecord).Reset 
-   Throw New NotImplementedException("AlbumReader.Reset")
-End Sub
-

I could not think of anything to put here. Well, I guess a proper Reset method could restart the file, but I'm not sure I want that to happen. I chanced to see a blog post that used this pattern, which I decided to copy. Since there is no reason why SqlClient would have to call Reset when you pass a TVP, you could always implement Reset this way. (But try to remember to change the class name in the argument to the exception constructor.)

-

Next we look at the Current property, which is very straightforward here, even if there is some level of noise due to the requirement to have both a generic and a non-generic implementation:

-
ReadOnly Public Property Current_generic As SqlDataRecord _
-   Implements IEnumerator (Of SqlDataRecord).Current
-   Get 
-      Return Me.Outrec
-   End Get
-End Property
-
-ReadOnly Property Current_nongeneric As Object _
-   Implements System.Collections.IEnumerator.Current
-   Get 
-      Return Me.Outrec
-   End Get
-End Property
-

In the CSV_splitter class, I put the final extraction in Current, but in this class I have put all work to fill Outrec in MoveNext, and that is probably you will do most of the time.

-

Now, if you think of what we have seen so far, there are really only two things you have craft from scratch when you implement a new custom-iterator for a TVP: the constructor and MoveNext. As for GetEnumerator, Reset and Current, you simply clone from your previous effort. Oh, I forgot: you need to implement Dispose as well:

-
Public Sub Dispose Implements IDisposable.Dispose
-   Me.fp.Close()
-   Me.fp.Dispose()
-End Sub
-

This time, there is something real to dispose of.

-

Left to show is the implementation of MoveNext, which is very much a rehash of the loop in read_file above, why I only include an outline to highlight the one thing that is different: since this is MoveNext we should return False if we are at end of file, else True.

-
Public Function MoveNext As Boolean _
-   Implements IEnumerator (Of SqlDataRecord).MoveNext
-
-   If Me.fp.EndOfData Then _
-      Return False
-
-   Dim Fields() As String = fp.ReadFields()
-
-   If Fields(0) = "A" Then
-      ' ... 
-   Else If Fields(0) = "T" Then 
-      ' ...
-   Else 
-      Throw New Exception("Illegal record type '" & fields(0) & "'.")
-   End If
-
-   Return True
-End Function
-

We have now looked at two classes that both feed a TVP. While they have lot of common when we look at the code, there is nevertheless one important distinction. The CSV_splitter class is intended to be a general class that you can reuse in many places. AlbumReader, on the other hand, is specific to a certain problem. You would have to write a new class for every new file or data source you read. And as you have seen, this is no big deal at all. Just remember that if there is a DbDataReader class for your data source, you should pass a data-reader object to your TVP directly; no need to write your own class in this case.

-

Performance Considerations

-

Before you start to stream files all over town, I like to add some words of caution. While the pattern I have shown here is very practical and neat, it is not the most optimal. It will serve you well for large files – but not for very large files. I wanted to prove that a streamed file is not buffered in the client, why I wrote a very stupid file reader which just chopped up the file into chunks of 1024 bytes and passed it to a TVP with a binary(1024) column. I was able to load an 80 MB file this way, although it took some time. (But the memory consumption in the client stayed flat, proving that data was indeed streamed.) When I tried a 500 MB file, my reward was a timeout message and a TDS error. I never investigated very closely what the underlying reason was, but I assume that I hit a resource limit. Maybe I triggered an auto-grow of the log file which took too long.

-

An advantage with TVPs is that they make it simple to implement a polished well-packaged solution using stored procedures. But keep in mind that the table parameter is an intermediate storage. This intermediate storage may be in memory or on disk, depending on how SQL Server decides to handle it, but it is intermediate storage. For this reason, it will always be more efficient if you can load the data directly into the target table through BCP, BULK INSERT or the SqlBulkCopy class. As I noted previously, BCP and BULK INSERT are not able to handle files with formats that require stateful parsing. Since SqlBulkCopy is an API, you have more control and you could use a class like the TextFieldParser to feed an SqlBulkCopy session to load data into the target table directly.

-

(In case you are thinking that XML or delimited strings could be an alternative here, permit me to point out that they, too, represent intermediate storage. If you pass a 50 MB XML document, it is very likely that SQL Server will spill it to disk.)

-

When you insert or update large amounts of data, there is always reason to consider chopping up the operation in batches. This applies no matter you are loading data from an outside source like a file, or if you copy data from one table to another. If for no other reason, it helps to keep the transaction-log size in check. In the context of loading a file through a TVP, this means that you need to call your procedure for every batch. There are two challenges here:

- -

I will not go into details here, but let if suffice with a brief discussion. The first point is not too difficult. You could pass the custom-iterator a Stream object and a batch size, and the custom-iterator would read that many of number of lines from the file. Or you could keep it simple: use a moderate batch size and fill a List with one batch at a time, and don't stream at all.

-

Making the process restartable may be more difficult. For a simple MERGE scenario (that is, if-not-exists-insert-else-update) you may accept to run part of the file twice. But there are scenarios where re-running part of a file would alter the outcome, for instance when columns are updated incrementally. Or INSERT-only scenarios like the one we have looked at in this article, where a re-run would result in primary-key violations or even worse: load of duplicate data. You can add WHERE NOT EXISTS in the stored procedure as a simple way out, but it may prove to have an undesirable performance impact for all loads, not only restarted ones. The best solution is likely to depend on the exact situation.

-

Finally, let's discuss the specific problem with master-detail files a little more closely. I said previously that with two table types and two iterators, both iterators would have to read the file from start to end. You may object to this statement and suggest that there could be a single class that reads the file and which puts the rows into two queues, one for albums and one for tracks. The custom-iterators would read from these queues. But, no, this will not fly. Well, it would fly in the sense that you would be able to load the file. However, you not would achieve the aim of preserving memory in the client process. Why?

-

Keep in mind that SqlClient sends the data to SQL Server over single a communication line where it has to respect the TDS protocol. And if you look in the TDS specification, you will find that the data for one TVP has to be sent in a single sequence. That is, SqlClient cannot interleave data for the two TVPs, but it will have to read all data for one TVP first. Which means that the data for the other TVP will be buffered into in this queue and take up memory which was exactly what we wanted to avoid. There is simply a law of nature working against us here: the data in the file comes in a different order than we want to process it, and there is no way around it. The best you can do is to stream the detail rows and buffer the header rows (of which there are likely to be fewer). But this appears to be messy to implement – it may be simpler use a batchwise implementation with a List<SqlDataRecord>.

-

It is worth noticing that neither my solution with a single table type overcomes problem with having to reorder the data. As long as the procedure has not started executing, no reordering has occurred, but all data has been buffered in SQL Server – in memory or in tempdb. However, when the procedure runs, it scans the table variable twice. Depending on the situation and hardware configuration this may be a better – or worse – solution than having the client to read the file twice. It goes without saying that if you are facing this scenario, and performance is critical for you, you should benchmark several solutions.

-

Using Table-Valued Parameters from Other APIs

-

This article has focused on using table-valued parameters with ADO .NET and SqlClient for two reasons. 1) It's a very common environment. 2) It's very simple to use TVPs from SqlClient. Before I conclude this article, I will give a brief exposé over other APIs and whether they support table-valued - parameters. I also discuss what options you have if your API does not support -TVPs.

-

ODBC

-

You can use table-valued parameters with ODBC. You need to specify SQL Server Native -Client 10.0 or later as your ODBC driver. SQL Server Native Client is a DLL that implements both an ODBC driver and an OLE DB provider for SQL Server. It comes with SQL Server and is freely redistributable.

-

As I have not worked with ODBC myself, I cannot assess how smooth or difficult it is to use TVPs - with ODBC. I believe that as with ADO .NET there are two ways to pass a -TVP through ODBC: streaming and non-streaming. Just like ADO .NET, ODBC exposes properties to specify that your data is sorted, to avoid sorting in SQL Server when the TVP has a primary key.

-

Books Online have two examples on using table-valued parameter in the section Table-Valued Parameters (ODBC) . There is also a sample on Codeplex.

- -

OLE DB

-

You can use table-valued parameters with OLE DB, if you use the SQLNCLI10 provider or later, that is the OLE DB half of SQL -Server Native Client. OLE DB offers two models for passing TVPs. One is the push model, where you create a rowset -with the metadata, fill the rowset with your data, and in the regular parameter area, you pass the rowset pointer. This is the same basic idea as passing a List with ADO .NET, but you need to write more code. (As always with -OLE DB, I'm tempted to say.)

-

The alternative is the pull model, which essentially is a role reversal where the consumer needs to implement -IRowset -on its own whereupon the provider will read from the rowset as a consumer. This model is intended for streaming scenarios, where you get data from an external source, and you don't want -any intermediate storage in the client.

-

I can't find anything in SQL Server Books Online that discusses how to specify that your data source is already sorted, so I don't know if this is possible. I have a suspicion, though, that they rely on general OLE DB functionality. To define a table parameter, you need to use the interface ITableDefinitionWithConstraints, and this interface has a method AddConstraint that permits you to specify a primary key. It is a little embarrassing that I don't know, since I have actually implemented TVPs with OLE DB (see below under Perl).

-

Whether you can use TVPs if you use the OLE DB Consumer Templates, I don't know. I've only worked with "naked" OLE DB -myself, never the consumer templates.

-

You can find a sample for the pull model on CodePlex. I have not found any sample for -the push model, but if you are desperate you can download the source code for my Perl module (see below), but you will find it difficult to find the forest among the all the trees there.

-

ADO

-

No, you cannot use table-valued parameters with old ADO. Yes, ADO sits on top of OLE DB, and you can use SQLNCLI10 as the -OLE DB provider with ADO. But ADO itself has not been updated for the new data types added in SQL 2005 and later cannot -work with them.

-

LINQ to SQL and Entity Framework

-

None of them have support for table-valued parameters. Ironic isn't it? Microsoft touts them as the hottest and -best way to access SQL Server, and then you find you don't have access to all features. The obvious workaround, besides -using one of the older list-to-table methods, is to make a direct call from ADO .NET and bypass that language-integrated -thing. Arguable, this causes your code to have a mix of paradigms. But it could be a first step from moving away from -LINQ/EF entirely. (Wait, did I just say that? OK, let it be said: I am not a fan of neither of these technologies, as I -feel that they serve to increase the object/relational impedance between client-side developers and -SQL Server people.)

-

See also the section Further Reading for some useful links in this area.

-

JDBC

-

The version of the Microsoft SQL Server JDBC Driver -that is current of this writing (4.0) does not seem to support table-valued parameters. But please check Microsoft's site for -updates. I don't know whether JDBC drivers for SQL Server from other vendors support -TVPs, but it -could definitely be worth investigating.

-

PHP

-

Microsoft has a PHP driver for SQL Server. The current version of this writing is 3.0. What I can understand, it does not support table-valued parameters. The driver is available with source code on Codeplex.

-

Perl

-

If you use the standard DBI/DBD modules, I doubt that you will find any support for table-valued parameters. However, -the best option for connecting to SQL Server – as long you do not need to support other data sources -– is -Win32::SqlServer, of which I am the author myself. And, yes, it supports table-valued -parameters. However, I found in my performance tests that the performance for passing TVPs is very poor. It took two seconds to pass a TVP with 50 000 values. Compare this with 50-150 ms for ADO .NET. I cannot say whether this is due to OLE DB or my own miserable programming.

- -

What If Your API Does Not Support TVPs

-

As you have realised when you've read this small summary is that if you are using VB6, VBA, Access, Java, PHP – and -probably a few more environments which I did not list here – you cannot use TVPs directly in your API. If you need to -pass a list of values, you should use any of the methods that I discuss in my article -Arrays -and Lists for SQL 2005 and Beyond.

-

If you need to call a stored procedure that takes a table-valued parameter, you can always do this by writing a -wrapper procedure that takes a comma-separated list (or an XML document for multi-column TVPs) as a parameter -and inserts the data -to a table variable and then calls the inner procedure. Say for instance that you need to call get_product_names from VB6:

-
CREATE PROCEDURE get_product_names_wrapper @prodids nvarchar(MAX)
-DECLARE @prodid_table integer_list_tbltype
-INSERT @prodid_table(n)
-    SELECT number FROM iter_intlist_to_tbl(@prodids)
-EXEC get_product_names @prodid_table
-

If you think creating a procedure is too much, you can submit a parameterised command batch:

-
DECLARE @prodid_table integer_list_tbltype
-INSERT @prodid_table(n)
-    SELECT number FROM iter_intlist_to_tbl(?)
-EXEC get_product_names @prodid_table
-

If you've never seen a parameterised command before, see the section on -SQL Injection in my article on dynamic SQL for a -brief introduction.

-

Acknowledgements, Feedback and Further Reading

-

I like to thank my MVP colleagues who helped me by reviewing my demo program and - with other research: Bob Beauchemin, -Alejandro Mesa, Greg Low, Daniel Joskovski, Lenni Lobel and Adam Machanic.

-

If you have opinions, additions or just have spotted a language/grammar error, please mail me at -esquel@sommarskog.se. If you have questions about using TVPs or arrays and -lists in SQL Server in general, I advice you to post your questions to the appropriate public forum. Which forum you should use depends on the exact nature of your question. If you have questions related to C# and VB .NET, you should use a .NET forum. For questions on ADO .NET the SQL Server Data Access forum may be the best place, while T‑SQL questions goes into the T‑SQL forum.

-

Here are some more blog posts about TVP:

-

SQL Server 2008 Table-Valued Parameters and C# Custom Iterators: A Match Made In Heaven! by SQL Server MVP Lenni Lobel, which includes some approaches that I did not include (because they go beyond my C# abilities).

-

LINQ Entity Data Reader, a MSDN article how that shows how to use TVPs together with LINQ.

-

Code First Stored Procedures, an article that discusses how to use TVPs with Entity Framework 4.1 and CodeFirst.

-

Revision History

-

2012-07-01 – More or less a total rewrite of the sections that cover .NET because of two reasons: I realised how simple it is to write a reusable class for parsing a comma-separated list and pass it to a table-valued parameter. The original version of the article incorrectly said you could not stream data to a TVP through ADO .NET, but that SqlClient would always buffer. This unfortunate error was due to a misunderstanding between me and a Program Manager at Microsoft. To the latter end, I have added examples how to load data from a file through a table-valued parameter, both streaming and non-streaming. For the other sections there mainly some language polishing, but I've added a caveat that you cannot use TVPs between stored procedures in different databases.

-

2011-02-25 – Added text that you need EXECUTE - permission to use a table type.

-

2010-01-06 – First version.

-

Back to my home page.

- -
-
- -
-
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The Curse and Blessings of Dynamic SQL

-

An SQL text by Erland Sommarskog, -SQL Server MVP. Latest revision: 2015-04-14.

-

An earlier version of this article is - also available in - German. Translations - provided by SQL Server MVP Frank Kalis.

-

Introduction

-

If you follow the various newsgroups on Microsoft SQL Server, -you often see people asking why they can't do:

-
SELECT * FROM @tablename
-SELECT @colname FROM tbl
-SELECT * FROM tbl WHERE x IN (@list)
-

For all three examples you can expect someone to answer Use dynamic SQL - and give a quick example on how to do it. Unfortunately, for all three examples - above, dynamic SQL is a poor solution. - On the other hand, there are situations where dynamic SQL - is the best or only way to go.

-

In this article I will discuss the use of dynamic SQL - in stored procedures and to a minor extent from client languages. To set the - scene, I start with a very quick overview on application - architecture for data access. I then proceed to describe the feature dynamic - SQL as such, - with a quick introduction followed by the gory syntax details. Next, I continue with a discussion on SQL injection, a - security issue that it is essential to have good understanding of when - you work with dynamic SQL. This is followed by a section where I discuss why - we use stored procedures, and how that is affected by the use of dynamic SQL. - I carry on with a section on good practices and tips for writing - dynamic SQL. I conclude by reviewing a number of - situations where you could use dynamic SQL and - whether it is a good or bad idea to do it.

-

The article covers all versions of SQL Server from SQL6.5 to - SQL2008, with emphasis on SQL2000 and later -versions.

- -

Contents:

- -Accessing Data from an Application
-Introducing Dynamic SQL
- -A First Encounter
-sp_executesql
-EXEC()
- -SQL Injection a Serious Security Issue
-Dynamic SQL and Stored Procedures
- -The Permission System
-Caching Query Plans
-Reducing Network Traffic
-Encapsulating Logic
-Keeping Track of what Is Used
-Ease of Writing SQL Code
-Addressing Bugs and Problems
- -Good Coding Practices and Tips for Dynamic SQL
- -Use Debug Prints!
-Nested Strings
-Spacing and Formatting
-Dealing with Dynamic Table and Column Names
-Quotename, Nested Strings and Quotestring
-QUOTED_IDENTIFIER
-sp_executesql and Long SQL Strings in SQL 2000
-Dynamic SQL in User-Defined Functions
-Cursors and Dynamic SQL
- -EXEC() at Linked Server
-Common Cases when to (Not) Use Dynamic SQL
- -SELECT * FROM @tablename
-SELECT * FROM sales + @yymm
-UPDATE tbl SET @colname = @value WHERE keycol = @keyval
- SELECT col AS @myname
-SELECT * FROM @dbname + '..tbl'
-SELECT * FROM tbl WHERE col IN (@list)
-SELECT * FROM tbl WHERE @condition
-Dynamic Search Conditions
-Dynamic Crosstab
-SELECT * FROM tbl ORDER BY @col
-SELECT TOP @n FROM tbl
-CREATE TABLE @tbl
-CREATE TABLE with Unknown Columns
-Linked Servers
-OPENQUERY
-Dynamic Column Widths
-Dynamic SQL and Maintenance Tasks
- -Acknowledgements and Feedback
-Revision History - -

Note: many of - the code samples in this text works against the pubs and Northwind databases - that ship with SQL2000 and SQL7, but not with SQL2005 -and later. You can download - these databases from - - Microsoft's web site.
- -

- -

Accessing Data from an Application

-

Before I describe dynamic SQL, I like to briefly discuss the various ways you can - access data from an application to give an overview of what I'll be - talking about in this article.

-

(Note: all through this text I will - refer to client as anything that accesses SQL Server from the outside. - In the overall application architecture that may in fact be a middle tier or - a business layer, but as that is of little interest to this article, I use - client in the sake of brevity.)

-

There are two main roads to go, and then there are forks and sub-forks.

-
    -
  1. Send SQL statements from the client to SQL - Server. -
      -
    1. Rely on SQL generated by the client API, using options like - CommandType.TableDirect and methods like .Update. LINQ falls into this group as well.
      2. -
    2. Compose the SQL strings in the client code. -
        -
      1. Build the entire SQL string with parameter values expanded.
        2. -
      2. Use parameterised queries.
        3. -
      3. -
    2. -
  2. Perform access through stored procedures.
    3. -
      -
    1. Stored procedures in T-SQL
      2. -
        -
      1. Use static SQL only.
        2. -
      2. Use dynamic SQL together with static SQL.
        3. -
      -
    2. Stored procedures in a CLR language such as C# or VB .Net. (SQL2005 - and later.)
      3. -
    -
-

Fork 1-a may be good for simple tasks, but you are likely to - find that you outgrow it as the complexity of your application increases. - In any case, this approach falls entirely outside the scope of this article.

-

Many applications are built along the principles of fork 1-b, - and as long as you take the sub-fork 1-b-ii, it does not have to - be bad. (Why 1-b-i is bad, is - something I will come back to. Here I will just drop two keywords: - SQL - Injection and Query-Plan Reuse.) Nonetheless, in many shops the mandate is - that you should use stored procedures. When you use stored procedures with - only static SQL, users do - not need direct permissions to access the tables, only permissions to execute the stored - procedures, and thus you can use the stored procedure to control what users - may and may not do.

-

The main focus for this text is sub-fork 2-a-ii. When used - appropriately, dynamic SQL in stored - procedures can be a powerful addition to static SQL. But some of the questions on the newsgroups leads to - dynamic SQL in stored procedures that are so meaningless, that these people - would be better off with fork 1-b instead.

-

Finally, fork 2-b, stored procedures in the CLR, is in many - regards very similar to fork 1-b, since all data access from CLR - procedures is through generated SQL strings, parameterised or unparameterised. If you have settled on SQL - procedures for your application, there is little point in rewriting them into - the CLR. However, CLR code can be a valuable supplement for tasks that are - difficult to perform in T-SQL, but you yet want to perform server-side.

-

Introducing Dynamic SQL

-

In this chapter I will first look at some quick examples of dynamic SQL and - point out some very important implications of using dynamic SQL. I will then - describe sp_executesql and EXEC() in detail, the two commands you can use to - invoke dynamic SQL from T-SQL.

-

A First Encounter

-

Understanding dynamic SQL itself is not difficult. Au contraire, it's rather - too easy to use. Understanding the fine details, though, takes a little - longer time. If you start out using dynamic SQL casually, you are bound to face - accidents when things do not work as you have anticipated.

-

One of the problems - listed in the introduction was how to write a stored procedure that takes a - table name as its input. Here are two examples, based on the two ways to do dynamic SQL in - Transact-SQL:

-
CREATE PROCEDURE general_select1 @tblname sysname,
-                                 @key     varchar(10) AS
-DECLARE @sql nvarchar(4000)
-SELECT @sql = ' SELECT col1, col2, col3 ' +
-              ' FROM dbo.' + quotename(@tblname) +
-              ' WHERE keycol = @key'
-EXEC sp_executesql @sql, N'@key varchar(10)', @key
-
CREATE PROCEDURE general_select2 @tblname nvarchar(127),
-                                 @key     varchar(10) AS
-EXEC('SELECT col1, col2, col3
-      FROM ' + @tblname + '
-      WHERE keycol = ''' + @key + '''')
-

Before I say anything else, permit me to point out that these are examples of - bad usage of dynamic SQL. - Passing a table name as a parameter - is not how you should write stored procedures, and one aim of this article is - to explain this in detail. Also, the two examples are not equivalent. While - both examples are bad, the second - example has several problems that the first does not have. What these - problems are will be apparent as you read this text.

-

Whereas the above looks very simple and easy, there are some very important things - to observe. The first thing is permissions. You may know that when you - use stored procedures, users do not need permissions to access the tables accessed by the stored procedure. This does not apply when - you use dynamic SQL! For the procedures above to execute - successfully, the users must have SELECT permission on the table in @tblname. In SQL2000 and earlier this is an absolute rule with no - way around it. Starting with SQL2005, there are alternatives, something I will - come - back to in the section The Permission System.

-

Next thing to observe is that the dynamic SQL is not part of - the stored procedure, but constitutes its own scope. Invoking a block - of dynamic SQL is akin to call a nameless stored procedure created ad-hoc. This - has a number of consequences:

- -

As you've seen there are two ways to invoke dynamic SQL, sp_executesql and - EXEC(). sp_executesql was added in SQL7, whereas EXEC() has been around - since SQL6.0. In application code, sp_executesql should be your choice 95% - of the time for reasons that will prevail. For now I will only give two - keywords: SQL Injection and - Query-Plan Reuse. EXEC() is mainly useful for quick throw-away things and DBA tasks, but also - comes to the rescue in SQL2000 and SQL7 - when the SQL string exceeds 4000 characters. And, obviously, in SQL6.5, EXEC() is the sole choice. In the next - two sections we will look at these two commands in detail.

- -

sp_executesql

-

sp_executesql is a built-in stored procedure that takes two - pre-defined parameters and any number of user-defined parameters.

-

The first parameter @stmt is mandatory, and contains a batch of one or - more SQL statements. The data type of @stmt is ntext in SQL7 and SQL2000, - and nvarchar(MAX) in SQL2005 and later. Beware that you must pass an nvarchar/ntext - value (that is, a Unicode value). A varchar value won't do.

-

The second parameter @params is optional, but you will use it 90% of the - time. @params declares the parameters that you refer to in @stmt. The syntax - of @params is exactly the same as for the parameter list of a stored procedure. The - parameters can - have default values and they can have the OUTPUT marker. Not all parameters you declare must actually - appear in the SQL string. (Whereas all variables that appear in the SQL - string must be declared, either with a DECLARE inside @stmt, or in - @params.) Just like @stmt, the data - type of @params is ntext SQL2000 and earlier and nvarchar(MAX) -since SQL2005.

-

The rest of the parameters are simply the parameters that you declared in - @params, and you pass them as you pass parameters to a stored procedure, either - positional or named. To get a value back from your output parameter, you must - specify OUTPUT with the parameter, just like when you call a stored - procedure. Note that the first two parameters, @stmt and @params, must be specified positionally. You - can provide the parameter names for them, but these names are blissfully ignored.

-

Let's look at an example. Say that in your database, many tables - have a column LastUpdated, which holds the time a row last was - updated. You want to be able to find out how many rows in each table that were modified at - least once during a period. This is not something you run as part of the application, but - something you run as a DBA from time to time, so you just keep it as a script - that you have a around. Here is what it could look like:

-
DECLARE @tbl    sysname,
-        @sql    nvarchar(4000),
-        @params nvarchar(4000),
-        @count  int
-
-DECLARE tblcur CURSOR STATIC LOCAL FOR
-   SELECT object_name(id) FROM syscolumns WHERE name = 'LastUpdated'
-   ORDER  BY 1
-OPEN tblcur
-
-WHILE 1 = 1
-BEGIN
-   FETCH tblcur INTO @tbl
-   IF @@fetch_status <> 0
-      BREAK
-
-   SELECT @sql =
-   N' SELECT @cnt = COUNT(*) FROM dbo.' + quotename(@tbl) +
-   N' WHERE LastUpdated BETWEEN @fromdate AND ' +
-   N'                           coalesce(@todate, ''99991231'')'
-   SELECT @params = N'@fromdate datetime, ' +
-                    N'@todate   datetime = NULL, ' +
-                    N'@cnt      int      OUTPUT'
-   EXEC sp_executesql @sql, @params, '20060101', @cnt = @count OUTPUT
-
-   PRINT @tbl + ': ' + convert(varchar(10), @count) + ' modified rows.'
-END
-
-DEALLOCATE tblcur
-

I've put the lines that pertain directly to the dynamic SQL in bold face. You - can see that I have declared the @sql and @params variables to be of the maximum - length for nvarchar variables in SQL2000. In SQL2005 -and later, you may want to make it a routine to - declare @sql as nvarchar(MAX), more about this just below.

-

When I assign the @sql variable, I am careful to format the statement so that - it is easy to read, and I leave in spaces to avoid that two concatenated - parts are glued together without space in between, which could cause a syntax - error. I put the table name in - quotename() in case a table name has any special - characters in it. I also prefix the table name with "dbo.", which is a good habit, as we will see when we look at dynamic SQL and - query plans. Overall, I will cover this sort of - good practices more in detail later in the text. Note also the appearance of - '' around the date literal the rule in T-SQL is that to include the string - delimiter in a string, you must double it.

-

In this example, the dynamic SQL has three parameters: one mandatory input - parameter, one optional input parameter, and one - output parameter. I've assumed that this time the DBA wanted to see - all changes made after 2006-01-01, which is why I've left out @todate in the call - to sp_executesql. Since I left out one variable, I must specify the last, - @cnt by name the same rules as when you call a stored procedure. Note also - that the variable is called @cnt in the dynamic SQL, but @count in the - surrounding script. Normally, you might want to use the same name, but I - wanted to stress that the @cnt in the dynamic SQL is only visible within the - dynamic SQL, whereas @count is not visible there.

-

You may note that I've prefix the string literals with N to denote that - they are Unicode strings. As @sql and @params are declared as nvarchar, - technically this is not necessary (as long as you stick to your 8-bit character - set). However, when you provide any of the strings directly in the call to - sp_executesql, you must specify the N, as in this fairly silly example:

-
EXEC sp_executesql N'SELECT @x', N'@x int', @x = 2
-

If you remove any of the Ns, you will get an error message. Since sp_executesql is a built-in stored procedure, there is no implicit - conversion from varchar.

-

You may wonder why I do not pass @tbl as a parameter as well. The answer is - that you can't. Dynamic SQL is just like any other SQL. You can't specify a - table name through a variable in T-SQL, that's the whole story. Thus, when you - need to specify things like table names, column names etc dynamically, - you must interpolate them into the string.

-

If you are on SQL2000 or SQL7, there is a limitation with sp_executesql - when it comes to the length of the SQL string. While the parameter is ntext, - you cannot use this data type for local variables. Thus, you will have to - stick to nvarchar(4000). In many cases this will do fine, but it is not - uncommon to exceed that limit. In this case, you will need to use EXEC(), - described just below.

-

Since SQL2005, this is not an issue. Here you can use the new data type - nvarchar(MAX) which can hold as much data as ntext, - but without the many restrictions of ntext.

-

EXEC()

- -

EXEC() takes one parameter which is an SQL statement to - execute. The parameter can be a concatenation of - string variables and string literals, but cannot include calls to functions - or other operators. For very simple - cases, EXEC() is less hassle than sp_executesql. For instance, say that you - want to run UPDATE STATISTICS WITH FULLSCAN on some selected tables. It could - look like this:

-
FETCH tblcur INTO @tbl
-IF @@fetch_status <> 0 BREAK
-EXEC('UPDATE STATISTICS [' + @tbl + '] WITH FULLSCAN')
-

In the example with sp_executesql, I used quotename(), but here I've let it - suffice with adding brackets, in case there is a table named Order - Details (which there is in the Northwind database). Since EXEC only permits - string literals and string variables to be concatenated and not arbitrary - expressions, this is not legal:

-
EXEC('UPDATE STATISTICS ' + quotename(@tbl) + ' WITH FULLSCAN')
-

Best practice is to always use a variable to hold the SQL statement, so the - example would better read:

-
FETCH tblcur INTO @tbl
-IF @@fetch_status <> 0 BREAK
-SELECT @sql = 'UPDATE STATISTICS ' + quotename(@tbl) + ' WITH FULLSCAN'
-EXEC(@sql)
-

The fact that you can concatenate strings within EXEC() permits you to - make very quick things, which can be convenient at times, but it can lead to - poor habits in application code. However, there are situations where this is an - enormous blessing. As I mentioned, in SQL7 and SQL2000, you can in practice - only use 4000 characters in your SQL string with sp_executesql. EXEC does - not have this limitation, since you can say:

-
EXEC(@sql1 + @sql2 + @sql3)
-

Where all of @sql1, @sql2 and @sql3 can be 4000 characters long or even - 8000 characters as EXEC() permits you to use varchar.

-

Since you cannot use parameters, you cannot as easily get values out from - EXEC() as you can with sp_executesql. You can, however, use INSERT-EXEC - to insert the result set from EXEC() into a table. I will show you an example - later on, when I also show you how you can - use EXEC() to pass longer strings than 4000 characters to sp_executesql.

-

In SQL2005 and later, EXEC() permits impersonation so that you can say:

-
EXEC(@sql) AS USER = 'mitchell'
-EXEC(@sql) AS LOGIN = 'CORDOBA\Miguel'
-

This is mainly a syntactical shortcut that saves you from embedding the - invocation of dynamic SQL in EXECUTE AS and REVERT. (I discuss these - statements more in detail in my article - Granting Permissions Through Stored - Procedures.)

-

SQL2005 adds a valuable extension to EXEC(): you can use - it to execute - strings on linked servers. I will cover this form - of EXEC() in a separate section - later in this text.

-

SQL Injection a Serious Security Issue

-

Before you start to use dynamic SQL all over town, you need to learn about - SQL injection and how you protect your application against it. SQL - injection is a technique whereby an intruder enters data that causes your application - to execute SQL statements you did not intend it to. SQL injection is possible as soon there is dynamic SQL which is - handled carelessly, be that SQL statements sent from the client, dynamic SQL - generated in T-SQL stored procedures, or SQL batches executed from CLR stored - procedures. This is not a line of attack that is unique to - MS SQL Server, but all RDBMS are open to it.

-

Here is an example. The purpose of the procedure below is to permit users to - search for orders by various conditions. A real-life example of such a - procedure would have many more parameters, but I've cut it down to two to be - brief. (This is, by the way, a problem for which dynamic SQL is a very good - solution.) As the procedure is written, it is open for SQL injection:

-
CREATE PROCEDURE search_orders @custid   nchar(5)     = NULL,
-                               @shipname nvarchar(40) = NULL AS
-DECLARE @sql nvarchar(4000)
-SELECT @sql = ' SELECT OrderID, OrderDate, CustomerID, ShipName ' +
-              ' FROM dbo.Orders WHERE 1 = 1 '
-IF @custid IS NOT NULL
-   SELECT @sql = @sql + ' AND CustomerID LIKE ''' + @custid + ''''
-IF @shipname IS NOT NULL
-   SELECT @sql = @sql + ' AND ShipName LIKE ''' + @shipname + ''''
-EXEC(@sql)
-

Before we look at a real attack, let's just discuss this from the point of view - of user-friendliness. Assume that the input for the parameters @custid and @shipname comes directly - from the user and a nave and innocent user wants to look for orders where ShipName is Let's Stop N Shop, so he enters Let's. Do you see - what will happen? Because @shipname includes a single quote, he will get a - syntax error. So even if you think that SQL injection is no issue to you, - because you trust your users, you still need to read this section, so that they - can search for Brian O'Brien and Samuel Eto'o.

-

So this is the starting point. A delimiter, usually a single quote, affects your dynamic SQL, and - a malicious user - can take benefit of this. For - instance, consider this input for @shipname:

-
' DROP TABLE Orders --
-

The resulting SQL becomes:

-
SELECT * FROM dbo.Orders WHERE 1 = 1  AND ShipName LIKE '' DROP TABLE orders --'
-

This is a perfectly legal batch of T-SQL, including the text in red. Since there is something called permissions in SQL Server, this - attack may or may not succeed. A plain - user who runs a Windows application and who logs into SQL Server with his - own login, is not likely to have - permissions to drop a table. But it is not uncommon for web applications to - have a general login that runs SQL queries on behalf of the users. And if this web app logs into SQL Server with sysadmin or db_owner - privileges, the attack succeeds. Mind you, with sysadmin rights, the - attacker can add users and logins as he pleases. And if the service account - for SQL Server has admin privileges in Windows, the attacker has access into - your network far beyond SQL Server through xp_cmdshell. (Which is - disabled by default on SQL2005 and later, but if the attacker has achieved - sysadmin rights on the server, he can change that.)

-

Typically, an attacker first tests what happens - if he enters a single quote (') in an input field or a URL. If this - yields a syntax error, the attacker knows that there is a vulnerability. He - then finds out if he needs any extra tokens to terminate the query, and then - he can add his own SQL statement. Finally he adds a comment character to kill - the rest of the SQL string to avoid syntax errors. Single quote is the most - common character to reveal openings for SQL injection, but if you have - dynamic table and column names, there are more options an attacker could - succeed with. - Take this dreadful version of general_select:

-
CREATE PROCEDURE general_select2 @tblname nvarchar(127),
-                                 @key     varchar(10) AS
-EXEC('SELECT col1, col2, col3
-      FROM ' + @tblname + '
-      WHERE keycol = ''' + @key + '''')
-

and assume that @tblname comes from a URL. There are quite some options that - an attacker could use to take benefit of this hole.

-

And don't overlook numeric values: they can very well be used for SQL - injection. Of course, in a T-SQL procedure where the value is passed as an - int parameter there is no risk, but if a supposedly numeric value is directly - interpolated into an SQL string in client code, there is a huge potential for - SQL injection.

-

Keep in mind that user input comes from more places than just input fields on - a form. The most commonly used area for injection attacks on the Internet is - probably parameters in URLs and cookies. Thus, be very careful how you handle - anything that comes into your application from the outside.

-

You may think that it takes not only skill, but also luck for someone to find - and exploit a hole for SQL injection. But remember that there are too many hackers out there - with too much time on their hands. SQL injection is a serious security issue, and you - must take precautions to protect your applications against it.

-

One approach I seen mentioned from time to time, is to validate input data in some way, but in my opinion that is not -the right way to go. Here are are the three steadfast - principles you need to follow:

- -

The first point is mainly a safeguard, so that if there is a injection hole, - the intruder will not be able to do that much harm. The second point makes - the task for the attacker more difficult as he cannot get feedback from his - attempts.

-

But it is the third point that is the - actual protection, and that we will look a little closer at. The procedure search_orders above should be coded as:

-
CREATE PROCEDURE search_orders @custid   nchar(5) = NULL,
-                               @shipname nvarchar(40) = NULL AS
-DECLARE @sql nvarchar(4000)
-SELECT @sql = ' SELECT OrderID, OrderDate, CustomerID, ShipName ' +
-              ' FROM dbo.Orders WHERE 1 = 1 '
-IF @custid IS NOT NULL
-   SELECT @sql = @sql + ' AND CustomerID LIKE @custid '
-IF @shipname IS NOT NULL
-   SELECT @sql = @sql + ' AND ShipName LIKE @shipname '
-EXEC sp_executesql @sql, N'@custid nchar(5), @shipname nvarchar(40)',
-                   @custid, @shipname
-

Since the SQL string does not include any user input, there is - no opening for SQL - injection. It's as simple as that. By the way, note that since we can include - parameters in the parameter list, even if they don't actually appear in the - SQL string, we don't need any complicated logic to build the parameter list, - but can keep it static. In the same vein, we can always pass all input - parameters to the SQL string.

-

As you may recall, you cannot pass everything as parameters to dynamic SQL, - for instance table and column names. In this case you must enclose all such - object names in quotename(), that I will return to in the section - Good Coding Practices and Tips for Dynamic SQL.

-

The example above was for dynamic SQL in a T-SQL stored procedure. The same advice - applies to SQL generated in client code or in a CLR stored procedure. Since - this is so important, here is an example of coding the above in VB6 and ADO:

-
Set cmd = CreateObject("ADODB.Command")
-Set cmd.ActiveConnection = cnn
-
-cmd.CommandType = adCmdText
-cmd.CommandText = " SELECT OrderID, OrderDate, CustomerID, ShipName " & _
-                  " FROM dbo.Orders WHERE 1 = 1 "
-If custid <> "" Then
-   cmd.CommandText = cmd.CommandText & " AND CustomerID LIKE ? "
-   cmd.Parameters.Append
-      cmd.CreateParameter("@custid", adWChar, adParamInput, 5, custid)
-End If
-
-If shipname <> "" Then
-   cmd.CommandText = cmd.CommandText & " AND ShipName LIKE ? "
-   cmd.Parameters.Append cmd.CreateParameter("@shipname", _
-                         adVarWChar, adParamInput, 40, shipname)
-End If
-
-Set rs = cmd.Execute
-

Since the main focus of this text is dynamic SQL in T-SQL procedures, I will - explain this example only briefly. In ADO you use ? as a parameter - marker, and you can only pass parameters that - actually appear in the SQL string. (If you - specify too many parameters, you will get a completely incomprehensible error - message.) If you use the SQL Profiler to see what ADO - sends to SQL Server, you will find that it invokes sp_executesql.

-

Protection against SQL injection is not the only advantage of using - parameterised queries. In the section Caching Query - Plans, we will look more in detail on parameterised queries and at a - second very important reason to use them. This section also includes an example of composing and sending a parameterised SQL statement for SqlClient - in VB .Net.

-

You may think that an even better protection against SQL injection is to use - stored procedures with static SQL only. Yes, this is true, - but! It - depends on how you call your stored procedures from the client. If you - compose an EXEC command into which you interpolate the input values, you are - back on square one and you are as open to SQL injection as ever. - In ADO, you need to call - your procedure with the command type adCmdStoredProc and use .CreateParameter to specify the parameters. By specifying adCmdStoredProc, you call the stored procedure through RPC, - Remote Procedure Call, which not only protects you against SQL - injection, but it is also more efficient. Similar measures apply to other client APIs; - all APIs I know of supply a way to call a stored procedure through RPC.

-

Dynamic SQL and Stored Procedures

-

In the introduction, I presented various strategies for - data-access for an application, and I said that in many shops all data access - is through stored procedures. In this section, I will look a little closer at - the advantages with using stored procedures over sending SQL statements from - the client. I will also look at what happens when you use dynamic SQL in a - stored procedure, and show that you lose some of the advantages with stored - procedures, whereas other are unaffected.

-

The Permission System

-

Historically, using stored procedures has been the way to give users - access to data. In a locked-down database, users do not have permissions to - access tables directly. Instead, the application performs all - access through stored procedures that retrieve and update data in a - controlled way, so that users only get to see data they have access to, and - they cannot perform updates that violate business rules. This works as long as the - procedure and the tables have the same owner, typically dbo (the - database owner), through a mechanism known as ownership chaining.

-

As I have already mentioned, ownership chaining does not work when you - use dynamic SQL. The reason for this is very simple: the block of - dynamic SQL is not a procedure and does not have any owner. - Thus the chain - is broken.

-

SQL 2005 and later

-

In SQL2005 and later versions of SQL Server, this can be addressed by signing a procedure that uses dynamic - SQL with a certificate. You associate the certificate with a user, and grant - that user (which is a user that cannot log in) the rights needed for the - dynamic SQL to execute successfully. A second method is to use - the EXECUTE AS clause to impersonate a user that has been granted the - necessary permissions. This method is easier to use, but has side effects - that can have unacceptable consequences for auditing, row-level security - schemes and system monitoring. For this reason, my strong recommendation is - to use certificates.

-

Describing these methods more closely, would take up too much space here. - Instead I've written a separate article about them, Giving Permissions through Stored - Procedures, where I discusses both certificates and impersonation in - detail, and I also take a closer look on ownership chaining.

-

If you write CLR procedures that perform data access, the same is true - for them. - Ownership chaining never applies since all data access in a CLR procedure is - through dynamic SQL. But you can use certificates or - impersonation to avoid having to give users direct permissions on the - tables.

-

SQL 2000 and earlier

-

On SQL2000 there is no way - to combine dynamic SQL with the encapsulation of permissions that you can get - through stored procedures. Any use of dynamic - SQL requires that the users have direct permissions on the accessed tables. If your security - scheme precludes giving users permissions to access tables directly, you cannot - use dynamic SQL. It is that plain and simple. Depending on the - sensitivity of the data in the application, it may be acceptable to give the - users SELECT permissions on the tables (or on some tables) to permit the use - of dynamic SQL. I strongly recommend against granting users INSERT, UPDATE - and DELETE rights on tables only to permit dynamic SQL - in some occasional procedure.

-

There are however, some ways to arrange so that users only have access to the data through the application. All and -all, there are three alternatives, application roles, "application - proxies" and Terminal Server. All require you to change the application architecture or infrastructure, so it - is nothing you introduce at whim.

-

Application roles were introduced in SQL7. Users log into SQL Server but have no permissions on their own beyond - the database access. Instead, the application activates the application role by - sending a password somehow embedded into it, and this application - role has the permissions needed. With "application proxies", the application authenticates the users outside SQL Server and logs into SQL - Server on their behalf with a proxy login. This proxy login impersonates the users in SQL Server, and - thus their permissions apply. However, since the users do not have any login on their own, they cannot - log into SQL Server outside the application. In Giving Permissions..., - I discuss these two methods a little further.

-

The final possibility is to put the application on Terminal Server. Users log into the terminal server which is set -up so that all they can do is to run this application. Furthermore, the network is configured so that they cannot access SQL Server from their regular -computers. Thus, the application is their only way to the data.

-

For all these methods, keep in mind about SQL injection, and do not grant more -permissions than needed.

-

Caching Query Plans

-

Every query you run in SQL Server requires a query plan. When you run a query - the first time, SQL Server builds a query plan for it or as the terminology - goes it compiles the query. SQL Server saves the plan in cache, and next time you run - the query, the plan is reused. The query plan stays in cache - until it's aged out because it has not been used for a while, or it is - invalidated for some reason. (Why this happens falls outside the scope of - this article.)

-

The reuse of cached query plans is very important for the performance - of queries where the compilation time is in par with the execution time or - exceeds it. If - a query needs to run for four minutes, it does not matter much if the query - is recompiled for an extra second each time. On the other hand, if the execution time of the - query is 40ms but it takes one second to compile the query, there is a - huge gain with the cached plan, particularly if the query is executed over and - over again.

-

Up to SQL6.5 the only plans there were put - into the cache were plans for stored - procedures. Loose batches of SQL were compiled each time. And since the - query plan for dynamic SQL is not part of the stored procedure, that included - dynamic SQL as well. Thus in SQL6.5, the use of dynamic SQL nullified the - benefit with stored procedures in this regard.

-

Starting with SQL7, SQL Server also caches the plans for bare statements - sent from a client or generated through dynamic SQL. Say that you send this - query from the client, or execute it with EXEC():

-
SELECT O.OrderID, SUM(OD.UnitPrice * OD.Quantity)
-FROM   Orders O
-JOIN   [Order Details] OD ON O.OrderID = OD.OrderID
-WHERE  O.OrderDate BETWEEN '19980201' AND '19980228'
-  AND  EXISTS (SELECT *
-               FROM   [Order Details] OD2
-               WHERE  O.OrderID = OD2.OrderID
-                  AND OD2.ProductID = 76)
-GROUP  BY O.OrderID
-

The query returns the total order amount for the orders in February 1998 that - contained the product Lakkalikri. SQL Server will put - the plan into the cache, - and next time you run this query, the plan will be reused. But only if it is exactly the same query. - Since the cache lookup is by a hash value computed from the query text, the cache is space- and case-sensitive. - Thus, if you add a - single space somewhere, the plan is not reused. More importantly, it is not - unlikely that next time you want to run the query for a different product, or a - different period.

-

All this changes, if you instead use sp_executesql to run your query - with parameters:

-
DECLARE @sql nvarchar(2000)
-SELECT @sql = 'SELECT O.OrderID, SUM(OD.UnitPrice * OD.Quantity)
-               FROM   dbo.Orders O
-               JOIN   dbo.[Order Details] OD ON O.OrderID = OD.OrderID
-               WHERE  O.OrderDate BETWEEN @from AND @to
-                 AND  EXISTS (SELECT *
-                              FROM   dbo.[Order Details] OD2
-                              WHERE  O.OrderID = OD2.OrderID
-                                AND  OD2.ProductID = @prodid)
-                GROUP  BY O.OrderID'
-EXEC sp_executesql @sql, N'@from datetime, @to datetime, @prodid int',
-                   '19980201', '19980228', 76
-

The principle for cache lookup is the same as for a non-parameterised query: - SQL Server hashes the query text and looks up the hash value in the cache, - still in a case- and space-sensitive fashion. But since the parameter values - are - not part of the query text, the same plan can be reused even when the input - changes.

-

To make this really efficient there is one more thing you need to observe. - Do you see that I've prefixed all tables in the query with dbo? There - is a very important reason for this. Users can have different default schema, and up to SQL2000, all users had a -default schema equal to their username. Thus, if default schema for user1 is user1, and this users runs a query that goes "SELECT ... FROM - Orders", SQL Server must first check if there is a table user1.Orders, - before it looks for dbo.Orders. Since user1.Orders could appear - on the scene at any time, user1 cannot share cache entry with a user different default schema. Yes, in SQL2005, it is perfectly possible that all users have dbo as their default schema, but it seems to be a bad idea to -rely on it.

-

If you instead use stored procedures, it is not equally important to prefix - tables with dbo. Microsoft still recommends that you do, but even if - you don't, users with different default schema can share the same query - plan.

-

From what I have said here, it follows that if you use dynamic SQL with - EXEC() you lose an important benefit of stored procedures - whereas with sp_executesql you don't. At least in - theory. It's easy to forget that dbo, and if you leave it out in just a - single place in the query, you will get as - many entries in the cache for the query as there are users running it. Recall - also that the cache is space- - and case-sensitive, so if you generate the same query in several places, you - may inadvertently have different spacing or inconsistent use of case. - And this is not restricted to the SQL statement, the parameter list is as much part of the cache entry. Furthermore, since the cache lookup is by a hash value computed from the query text, I - would assume that this is somewhat more expensive than looking up a stored - procedure. In fact, under extreme circumstances, heavy use of dynamic SQL, can lead to serious - performance degradation. Some of my MVP colleagues have observed systems with - lots of memory (>20GB) when the plan cache has been so filled with plans - for SQL statements, that there have been hash collisions galore, and the - cache lookup alone could take several seconds. Presumably, the applications in - question either did not use parameterised queries at all, or they failed to - prefix tables with dbo.

-

So far, I've only talked about dynamic SQL in stored procedures. But in this - regard there is very little difference to SQL statements sent from - the client, or SQL statements generated in CLR procedures. The same rules - apply: unparameterised statements are cached but with little probability for - reuse, whereas parameterised queries can be as efficient as stored - procedures if you remember to always prefix the tables with dbo. (And still - with the caveat that the cache lookup is space- and case-sensitive.) Most client APIs implement - parameterised queries by calling sp_executesql under the covers.

-

In the section on SQL Injection, I included an example on how to do - parameterised queries with ADO and VB6. - Here is an example with VB .Net and SqlClient:

-
cmd.CommandType = System.Data.CommandType.Text
-cmd.CommandText = _
-    " SELECT O.OrderID, SUM(OD.UnitPrice * OD.Quantity)" & _
-    " FROM   dbo.Orders O " & _
-    " JOIN   dbo.[Order Details] OD ON O.OrderID = OD.OrderID" & _
-    " WHERE  O.OrderDate BETWEEN @from AND @to" & _
-    "   AND  EXISTS (SELECT *" & _
-    "                FROM   dbo.[Order Details] OD2" & _
-    "                WHERE  O.OrderID = OD2.OrderID" & _
-    "                  AND  OD2.ProductID = @prodid)" & _
-    " GROUP  BY O.OrderID"
-
-cmd.Parameters.Add("@from", SqlDbType.Datetime)
-cmd.Parameters("@from").Value = "1998-02-01"
-
-cmd.Parameters.Add("@to", SqlDbType.Datetime)
-cmd.Parameters("@to").Value = "1998-02-28"
-
-cmd.Parameters.Add("@prodid", SqlDbType.Int)
-cmd.Parameters("@prodid").Value = 76
-

In contrast to ADO, SqlClient uses names with @ for parameters. The syntax - for defining parameters is similar to ADO, but not identical. This article is - long enough, so I will not go into details on how the Parameters - collection works. Instead, I refer you to MSDN where both SqlClient and ADO - are documented in detail. Whatever client API you are using, - please - learn how to use parameterised commands with it. Yes, there is a tone of - desperation in my voice. I don't know how many posts I've seen on the - newsgroups over the years where people build their SQL strings by - interpolating the values from input fields into the SQL string, and thereby - degrading the performance of their application, and worst of all opening - their database to SQL injection.

-

... and just when you thought you were safe, I need to turn this upside down. Recall what I said in the beginning of -this section, that if the query is going to run for four minutes, one second extra for compilation is not a big deal. -And if that recompilation slashes the execution time from forty minutes to four, there is a huge gain. Most queries -benefit from cached parameterised plans, but not all do. Say that you have a query where the user can ask for data for -some time span. If the user asks for a summary for a single day, there is a good non-clustered index that can be used -for a sub-second response time. But if the request is for the entire year, the same index would be a disaster, and a -table scan is better. Starting with SQL2005 you can force a - query to be recompiled each - time it is executed by adding OPTION (RECOMPILE) - to the end of the query, and thus you can still use sp_executesql to get the - best protection against SQL injection. On SQL2000 - and earlier, it may in fact be better to interpolate critical parameters into the - query string when you need to force recompilation each time.

-

For the sake of completeness, I should mention that SQL - Server is able to auto-parameterise queries. If you submit:

-
SELECT OrderID, OrderDate FROM dbo.Orders WHERE CustomerID = N'ALFKI'
-

SQL Server may recast this as

-
SELECT OrderID, OrderDate FROM dbo.Orders WHERE CustomerID = @P1
-

so if next time you submit BERGS instead of ALFKI, the query plan will be reused. - Auto-parameterisation comes in two flavours: simple and forced. Simple is the - default and is the only option on SQL2000 and - earlier. With simple parameterisation, auto-parameterisation happens only with very simple - queries, and, it seems, with some inconsistency. With forced - parameterisation, SQL Server parameterises all queries that comes its way - (with some exceptions documented in Books Online). Forced parameterisation - is, in my opinion, mainly a setting to cover up for poorly designed - third-party application that uses unparameterised dynamic - SQL. For your own development you should not - rely on any form of auto-parameterisation. (But in the situation you really a want a new query - plan each time, you may have to verify that it doesn't happen when you don't - want to.)

-

They say seeing is believing. Here is a demo that you can try on yourself, if - you have SQL2005. First create this database:

-
CREATE DATABASE many_sps
-go
-USE many_sps
-go
-DECLARE @sql nvarchar(4000),
-        @x   int
-SELECT @x = 200
-WHILE @x > 0
-BEGIN
-   SELECT @sql = 'CREATE PROCEDURE abc_' + ltrim(str(@x)) +
-                 '_sp @orderid int AS
-   SELECT O.OrderID, O.OrderDate, O.CustomerID, C.CompanyName,
-          Prodcnt = OD.cnt, Totalsum = OD.total
-   FROM   Northwind..Orders O
-   JOIN   Northwind..Customers C ON O.CustomerID = C.CustomerID
-   JOIN   (SELECT OrderID, cnt = COUNT(*), total = SUM(Quantity * UnitPrice)
-           FROM   Northwind..[Order Details]
-           GROUP  BY OrderID) AS OD ON OD.OrderID = O.OrderID
-   WHERE  O.OrderID = @orderid'
-   EXEC(@sql)
-   SELECT @x = @x - 1
-END
-

Then in SQL Server Management Studio 2005, press F7 - navigate down to the list of stored procedures. Select all procedures. Then - from the context menu select to script them as CREATE - TO to a new query window. How long time this takes depends on your - hardware, but on my machine it took 90 seconds and at the same time SQL - Server grabbed over 250MB of memory. If you - use the Profiler to see what Mgmt Studio is up to, you will see that for each - procedure, Mgmt Studio emits a couple of queries with the procedure name - embedded. That is, no parameterised statements. Once scripting is complete, - issue this command:

-
ALTER DATABASE many_sps SET PARAMETERIZATION FORCED
-

and redo the operation. On my machine scripting now completed in five - seconds!. This demonstrates that the difference between parameterised and - unparameterised can be dramatic. (And that Microsoft can not use their own - products properly.) If you run SQL Server on - your local machine, you can see this from one more angle, you can stop and restart - SQL Server before the two scripting operations, and then use Task Manager to - see how much physical memory SQL Server uses - in the two cases. That difference lies entirely in the plan cache.

-

This particular issue have been addressed in SQL Server Management Studio 2008. SSMS 2008 has its own scripting -issues, but they have nothing to do with the topic of this article.

-

Reducing Network Traffic

- -

Another advantage with stored procedures over SQL sent from the client is that less bytes travel the network. Rather than sending a - 50-line query over the network, you only need to pass the name of a stored procedure - and a few parameters. This gets more significant if the computation requires - several queries, possibly with logic in between. If all logic is outside the - database, this could mean that data has to travel up to the client, only to travel back in the next moment. With stored procedures you can - use temp tables to hold intermediate results. (You can use temp tables - from outer layers as well, although it may require some careful use of your - client API.)

-

In this case, the dividing line goes between sending SQL from the client or - running stored procedures. If the stored procedures use static SQL only, or - invoke dynamic SQL does not matter, nor does it matter if it is a CLR procedure. - You still get the gains of reduced network traffic.

-

Encapsulating Logic

- -

This is not a question of security or performance, but one of - good programming practice and modularising your code. By using stored procedures, you don't have to bog down -your client code with the construction of SQL statements. Then again, it depends - a little on what you put into those stored procedure. Myself, I am of the - school that the business logic should be where the data is, and in this case - there is no dispute that you should use stored procedures to encapsulate your - logic.

-

But there are also people - who like to see the database as a unintelligent container of data, and who - prefer to have the business logic - elsewhere. In this case, the arguments for using stored procedures - for encapsulation may not be equally compelling. You could just as well employ careful programming practices in - your client language and send SQL strings.

-

Nothing of this changes if you use dynamic SQL in your stored procedures. The - stored procedure is still a container for some piece of logic, and how it - looks on the inside does not matter. I'm here assuming that most of your - procedures use static SQL only. If all your stored procedures - generate dynamic SQL, then you are probably better off in this regard to do it all in client code. Then again, sometimes there is no other application - than Query Analyzer or SQL Server Management Studio. (Typically this would be - tasks that are run by an admin.) In this case, the only container of logic - available is stored procedures, and it's immaterial whether they use dynamic - SQL or not.

-

Keeping Track of what Is Used

- -

In a complex system with hundreds of tables, you may need to know where a - certain table or column is referenced, because you are considering changing - or dropping it. If all access to tables is from static SQL in stored - procedures, you may be able find all references by using the system - stored procedure sp_depends or query a system table directly. (sysdepends - in SQL2000, sys.sql_dependencies in SQL2005 -and later. In SQL2008 there is also sys.sql_expression_dependencies.) I say may, because it is very difficult to maintain complete dependency - information in SQL Server. If you drop and recreate a table, all dependency - information for the table is lost. What I do myself is to regularly build an empty database - from our version-control system, and since our build tool - loads all tables before any stored procedure or trigger, I know that I can - trust the dependency information in that database.

-

If you throw dynamic SQL into the mix be that SQL sent from client, - dynamic SQL in T-SQL procedures, or SQL generated by CLR stored procedures - - you lose this opportunity. The alternative is to employ brute-force search, - and if the construction of dynamic SQL is confined to some well-defined set - of modules, this may work. If not, you may end up with a database where no - one ever dares to drop or change a column or a table, and which eventually - becomes unbearable complex and inefficient because of all the legacy baggage - it's carrying around.

-

While the main dividing line here is between static SQL and any form of - dynamic SQL, dynamic SQL in T-SQL -stored procedures is probably the least harmful, as there is less code to search. You can even search - the column sys.sql_modules.definition using SQL. Available since SQL2005. In SQL2000 you - can search syscomments, but as the procedure text there is chopped into 4000-char slices, this is less -reliable.

-

In any case, an occasional stored procedure that uses dynamic SQL is not - likely cause the Armageddon I pictured above. But it is - a good argument for being restrictive with dynamic SQL in any form.

-

Ease of Writing SQL Code

-

One distinct advantage of writing stored T-SQL procedures is that you get a - syntax check directly. With dynamic SQL, a trivial syntax error may not show up - until run time. Even if you test your code carefully, there may be some query, or - some variation of a query, that is only run in odd cases and not covered in - your test suite.

-

It has to be admitted that the strength of this argument is somewhat reduced by the fact - that T-SQL is not too industrious on reporting semantic errors. - Because of deferred name resolution, SQL Server will not examine queries in - stored procedures, where one or more tables are missing, be that misspellings - or temp tables created within the procedure. Nevertheless, SQL Server - does report sufficiently many errors, for this to be a very important reason - to use stored procedures.

-

Another side of this coin is that when you write dynamic SQL, you embed the - SQL code into strings, which makes programming far more complex. Your SQL - code is a string delimited by single quotes('), and this string - may include strings itself, and to include a single quote into the string you - need to double it. You can easily get lost in a maze of quotes if you don't - watch out. (In the section Good Coding Practices - and Tips for Dynamic SQL, we will look a little closer - on how to deal - with this problem.) The most commonly used client languages with T-SQL - - Visual Basic, C#, C++, VBScript all use the double quote (") - as their string delimiter, so dynamic SQL in client code or CLR stored - procedures is less prone to that particular problem. Then again, in VB you - don't have multi-line strings, so at the end of each line you have to have a double - quote, an ampersand and an underscore for continuation. It sure does not - serve to make coding easier. You are relieved from all this hassle, if you - use stored procedures with static SQL only.

-

Addressing Bugs and Problems

-

Somewhat surprisingly, one of the strongest arguments for stored procedures today may - be - that they permit you to quickly address bugs and performance problems in the - application.

-

Say that you generate SQL statements in your application, and that there is - an error in it. Or that it simply performs unbearably slow. To fix it, you need to - build a new executable or DLL, which is likely to contain other code that also - has changed since the module was shipped. This - means that before the fix can be put into production, the module will have to go - through QA and testing.

-

On the other hand, if the problem is in a stored procedure, and the fix is - trivial, you may be able to deploy a fix into production within an hour after - the problem was reported.

-

This difference is even more emphasised, if you are an ISV and you ship a - product that the customer is supposed administer himself. If your application - uses stored procedures, a DBA may be able to address problems directly - without opening a support case. For instance, if a procedure runs unacceptably - slow, he may be able to fix that by adding an index hint. In contrast, - with an application that generates SQL in the - client, his hands will be tied. Of course, as an ISV you may not want your - customers to poke around in your code, even less to change it. You may also prefer - to ship your procedures WITH ENCRYPTION to protect - your intellectual property, but this is best controlled - through license agreements. (If you encrypt your procedures, the DBA can still - change them, as long as he is able to find a way to decrypt them. Which any - DBA that knows how to use Google can do.)

-

In this case, it does not matter whether the stored procedure uses static SQL - only, or if it also uses dynamic SQL. For CLR procedures it depends on many objects - you have in your assemblies. If you have one assembly per object, installing a new version of a CLR procedure - is as simple as replacing a T-SQL procedure.

-

(I should add that SQL2005 offers a new feature that permits the DBA to - change the plan for a query without altering the code, by adding a plan guide. - This feature has been further enhanced in SQL2008. This is quite an advanced feature, and I refer to Books Online for details.)

-

Good Coding Practices and Tips for Dynamic SQL

-

Writing - dynamic SQL is a task that requires discipline to -avoid losing control - over your code. If you - just go ahead, your code can become very messy, and be difficult to read, troubleshoot - and maintain. In this section, we will look at how to avoid this. I will also - discuss some special cases: how you can use sp_executesql for input longer - than 4000 chars in SQL2000, and how to use dynamic SQL with cursors, and the - combination of dynamic SQL and user-defined functions.

-

Use Debug Prints!

-

When you write a stored procedure that generates dynamic SQL, you should - always include a @debug parameter:

-
CREATE PROCEDURE dynsql_sp @par1 int,
-                           ...
-                           @debug bit = 0 AS
-...
-IF @debug = 1 PRINT @sql
-

When you get a syntax error from the dynamic SQL, it can be very confusing, and - you may not even discern where it comes from. And even when you do, it can be - very difficult to spot the error only by looking at the code that constructs the SQL. - Once the SQL code is slapped in your face, the error is much more likely to be apparent to you. - So always include a @debug parameter and a PRINT!

-

Nested Strings

-

As I've already mentioned, one problem with dynamic SQL is that you often need to deal with nested - string delimiters. For instance, in the beginning of this article, I showed - you the procedure general_select2. Here it is again:

-
CREATE PROCEDURE general_select2 @tblname nvarchar(127),
-                                 @key     varchar(10) AS
-EXEC('SELECT col1, col2, col3
-      FROM ' + @tblname + '
-      WHERE keycol = ''' + @key + '''')
-

(Again, I like to emphasise that this sort of procedure is poor use of - dynamic SQL.)

-

-SQL is one of those language where the method to include a string -delimiter itself in a string literal is to double it. So those four consecutive -single quotes ('''') is a string literal with the value of a one -single quote ('). -This is a fairly simple example; it can get a lot worse. If you work with -dynamic SQL, you must learn to master nested strings. Obviously, in this case you -can easily escape the mess by using sp_executesql instead yet another reason -to use parameterised statements. However, there are situations when you need to -deal with nested quotes even with sp_executesql. For instance, earlier in this -article, I had this code:

-
N' WHERE LastUpdated BETWEEN @fromdate AND '
-N'                           coalesce(@todate, ''99991231'')'
-

We will look at some tips of dealing with nested strings later in this - section.

-

Spacing and Formatting

-

Another thing to be careful with is the spacing as you concatenate the parts - of a query. - Here is an example where it goes wrong:

-
EXEC('SELECT col1, col2, col3
-      FROM' + @tblname + '
-      WHERE keycol = ''' + @key + '''')
-

-See that there is a space missing after FROM? When you compile the stored procedure -you will get no error, but when you run it, you will be told that the columns -keycol, col1, col2, col3 are missing. And since you know that the -table you passed to the procedure has these columns you will be mighty confused. But this is -the actual code generated, assuming the parameters foo and abc:

-
SELECT col1, col2, col3
-    FROMfoo
-    WHERE keycol = 'abc'
-This is not a syntax error, because FROMfoo is a column alias to col3. -And, yes, it's legal to use a WHERE clause, even if there is no FROM clause. But -since the columns cannot exist out of the blue, you get an error for that.

- This is also a good example why you should use debug prints. If the code - looks like this:

-
SELECT @sql =' SELECT col1, col2, col3
-               FROM' + @tblname + '
-               WHERE keycol = ''' + @key + ''''
-IF @debug = 1 PRINT @sql
-EXEC(@sql)
-

It would be much easier to find the error by running the procedure with - @debug = 1. (Obviously, had we included the dbo prefix, this error - could not occur at all.)

-

Overall, good formatting is essential when working with dynamic SQL. Try to - write the query as you would have written it in static SQL, and then add the - string delimiters outside of that. T-SQL permits you to embed newlines in - string literals (as testified by the example above), so in contrast to VB, - you don't need a string delimiter on each line. An advantage of this is that - your debug PRINT is easier to read, and in the case of a syntax error the line - number in the error message may guide you.

-

You may prefer, though, to - have a string terminator on each line. A tip in such case is to do something - like this:

-
EXEC(' SELECT col1, col2, col3 ' +
-     ' FROM ' + @tblname +
-     ' WHERE keycol = ''' + @key + '''')
-

As you see, I have a space after the opening single quote on each line to avoid syntax problems due to missing spaces.

-

Dealing with Dynamic Table and Column Names

-

Passing table and column names as parameters to a procedure with dynamic SQL - is rarely a good idea for application code. (It can make perfectly sense for - admin tasks). As I've said, you cannot pass a table or a column name as a - parameter to sp_executesql, but you must interpolate it into the SQL string. - Still you should protect it against SQL - injection, as a matter of routine. It could be that bad it comes from user - input.

-

To this end, you should use the built-in function quotename() (added in - SQL7). quotename() takes two parameters: the first is a string, and the second - is a pair of delimiters to wrap the string in. The default for the second - parameter is []. Thus, quotename('Orders') returns - [Orders]. quotename() takes care of nested delimiters, so if you have - a really crazy table name like Left]Bracket, quotename() will - return [Left]]Bracket].

-

Note that when you work with names with several components, each component - should be quoted separately. quotename('dbo.Orders') returns - [dbo.Orders], but that is a table in an unknown - schema of which the first four characters are d, b, o and - a dot. As long as you only work with the dbo schema, best practice is to - add dbo in the dynamic SQL and only pass the table name. If you work - with different schemas, pass the schema as a separate parameter. (Although - you could use the built-in function parsename() to split up a - @tblname - parameter in parts.)

-

While general_select still is a poor idea as a stored procedure, here - is nevertheless a version that summarises some good coding - virtues for dynamic SQL:

-
CREATE PROCEDURE general_select @tblname nvarchar(128),
-                                @key     varchar(10),
-                                @debug   bit = 0 AS
-DECLARE @sql nvarchar(4000)
-SET @sql = 'SELECT col1, col2, col3
-            FROM dbo.' + quotename(@tblname) + '
-            WHERE keycol = @key'
-IF @debug = 1 PRINT @sql
-EXEC sp_executesql @sql, N'@key varchar(10)', @key = @key
- -

Quotename, Nested Strings and Quotestring

-

-The main purpose of quotename() is to quote object names, which is why the -default for the second parameter is brackets. But you can specify other -delimiters as well, including single quotes, which means that any single quote -in the input is doubled. Thus, if you for some reason prefer to use - EXEC(), you can use quotename() to protect yourself against SQL - injection by help of this function. Here is an example.

-
IF @custname IS NOT NULL
-   SELECT @sql = @sql + ' AND custname = ' + quotename(@custname, '''')
-

Say that @custname has the value D'Artagnan. This part of the dynamic SQL - becomes:

-
AND custname = 'D''Artagnan'
-

There is a limitation with quotename(): its input parameter - is nvarchar(128), so it does not handle long strings. A remedy is this user-defined function:

-
CREATE FUNCTION quotestring(@str nvarchar(1998)) RETURNS nvarchar(4000) AS
-BEGIN
-   DECLARE @ret nvarchar(4000),
-           @sq  char(1)
-   SELECT @sq = ''''
-   SELECT @ret = replace(@str, @sq, @sq + @sq)
-   RETURN(@sq + @ret + @sq)
-END
-

This version is for SQL2000. On SQL2005 and -later, replace 1998 and 4000 with MAX, - to make it work for any string length. Here is an example of using this function:

-
IF @custname IS NOT NULL
-   SELECT @sql = @sql + ' AND custname = ' + dbo.quotestring(@custname)
-

-The result is the same as above.

-

-On SQL7, you would have to implement quotestring as a stored procedure. -SQL6.5 does not have replace(), so you are a bit out of luck there.

-

-So with quotename() and quotestring(), -do we have as good protection against SQL -injection as we have with parameterised commands? Maybe. I don't know of any way to -inject SQL that slips through quotename() or quotestring(). Nevertheless, you -are interpolating user input into the SQL string, whereas with parameterised -commands, you don't.

-

-(I -should add that I got the suggestion to use quotename() or a user-defined -function from SQL Server MVP Steve Kass.)

-

QUOTED_IDENTIFIER

-

Another alternative to - escape the mess of nested quotes, is make use - of the fact that T-SQL actually has two string delimiters. To wit, if the - setting QUOTED_IDENTIFIER is OFF, you can also use double quotes(") - as a string delimiter. The default - for this setting depends on context, but the preferred setting is - ON, and it - must be ON in order to use XQuery, indexed views and indexes on computed columns. - Thus, this is not a first-rate alternative, but if you are aware of the caveats, - you can do this:

-
CREATE PROCEDURE general_select @tblname nvarchar(127),
-                                @key     key_type,
-                                @debug   bit = 0 AS
-DECLARE @sql nvarchar(4000)
-
-SET @sql = 'SET QUOTED_IDENTIFIER OFF
-            SELECT col1, col2, col3
-            FROM dbo.' + quotename(@tblname) + '
-            WHERE keycol = "' + @key + '"'
-IF @debug = 1 PRINT @sql
-EXEC(@sql)
- -

Since there are two different quote characters, the code is much easier to - read. The single quotes are for the SQL string and the double quotes - are for - the embedded string literals.

-

All and all, this is an inferior method to both sp_executesql and quotestring(), since you are not protected against SQL injection - (what if @key includes a double quote?). But it - would be OK to do for some sysadmin task (where SQL injection is not likely - to be an issue), and it may be the best way to go on SQL6.5.

-

sp_executesql and Long SQL Strings in SQL 2000

-

There is a limitation with sp_executesql on SQL2000 - and SQL7, since you cannot use longer SQL - strings than 4000 characters. (On SQL2005 and later, - you should use nvarchar(MAX) to avoid this - problem.) If you - want to use sp_executesql when your query string exceeds this limit to make use of parameterised query plans, there is actually a - workaround. To wit, you can wrap sp_executesql in EXEC():

-
DECLARE @sql1 nvarchar(4000),
-        @sql2 nvarchar(4000),
-        @state char(2)
-SELECT @state = 'CA'
-SELECT @sql1 = N'SELECT COUNT(*)'
-SELECT @sql2 = N'FROM dbo.authors WHERE state = @state'
-EXEC('EXEC sp_executesql N''' + @sql1 + @sql2 + ''',
-                         N''@state char(2)'',
-                         @state = ''' + @state + '''')
-

This works, because the @stmt parameter to sp_executesql is ntext, so by - itself, it does not have any limitation in size.

-

You can even use output parameters by using - INSERT-EXEC, as - in this example:

-
CREATE TABLE #result (cnt int NOT NULL)
-DECLARE @sql1  nvarchar(4000),
-        @sql2  nvarchar(4000),
-        @state char(2),
-        @mycnt int
-SELECT @state = 'CA'
-SELECT @sql1 = N'SELECT @cnt = COUNT(*)'
-SELECT @sql2 = N'FROM dbo.authors WHERE state = @state'
-INSERT #result (cnt)
-   EXEC('DECLARE @cnt int
-         EXEC sp_executesql N''' + @sql1 + @sql2 + ''',
-                            N''@state char(2),
-                               @cnt   int OUTPUT'',
-                            @state = ''' + @state + ''',
-                            @cnt = @cnt OUTPUT
-         SELECT @cnt')
-SELECT @mycnt = cnt FROM #result
-

You have my understanding if you think this is too messy to be worth it.

-

Dynamic SQL in User-Defined Functions

-

This very simple: you cannot use dynamic SQL from used-defined functions - written in T-SQL. This is because you are not permitted do anything in a UDF - that could change the database state (as the UDF may be invoked as part of a - query). Since you can do anything from dynamic SQL, including updates, it is - obvious why dynamic SQL is not permitted.

-

I've seen more than one post on the newsgroups where people have - been banging their head against this. But if you want to use dynamic SQL in a - UDF, back out - and redo your design. You have hit a roadblock, and in SQL2000 there is no - way out.

-

In SQL2005 and later, you could implement your function as a CLR function. Recall that - all data access from the CLR is dynamic SQL. (You are safe-guarded, so that if - you perform an update operation from your function, you will get caught.) A - word of warning though: data access from scalar UDFs can often give performance - problems. If you say

-
SELECT ... FROM tbl WHERE dbo.MyUdf(somecol) = @value
-

and MyUdf performs data access, you have more or less created a hidden - cursor.

-

Cursors and Dynamic SQL

-

Not that cursors are something you should use very frequently, but people often -ask about using dynamic SQL with cursors, so I give an example for the sake - of completeness. You cannot say DECLARE CURSOR EXEC(); you have to put the -entire DECLARE CURSOR statement in dynamic SQL:

-
SELECT @sql = 'DECLARE my_cur INSENSITIVE CURSOR FOR ' +
-              'SELECT col1, col2, col3 FROM ' + @table
-EXEC sp_executesql @sql
-

You may be used to using the LOCAL keyword with your cursors. However, it is - important to understand that you must use a global cursor, as a local cursor - will disappear when the dynamic SQL exits. (Because, as you know by now, the - dynamic SQL is its own scope.) Once you have declared the - cursor in this way, you can use the cursor in a normal fashion. You must be - extra careful with error-handling though, so that you don't exit the - procedure without deallocating the cursor.

-

There is however a way to use locally-scoped cursors with dynamic SQL. - Anthony Faull pointed out to me that you can achieve this with cursor variables, as in this example:

-
DECLARE @my_cur CURSOR
-EXEC sp_executesql
-     N'SET @my_cur = CURSOR STATIC FOR
-       SELECT name FROM dbo.sysobjects;
-       OPEN @my_cur',
-     N'@my_cur cursor OUTPUT', @my_cur OUTPUT
-FETCH NEXT FROM @my_cur
-

-You refer to a cursor variable, just like named cursors, but there is an @ in front, -and, as you see from the example, you can pass them as a parameters. (I have to confess -I have never seen any use for cursor variables until Anthony Faull was kind to send -me this example.)

-

EXEC() at Linked Server

-

A special feature added in SQL2005 is that you can use EXEC() to run - pass-through queries on a linked server. This could be another instance of - SQL Server, but it could also be an Oracle server, an Access database, Active - directory or whatever. The SQL could be a single query or a sequence of - statements, and could it be composed dynamically or be entirely static. The syntax - is simple, as seen by this example:

-
EXEC('SELECT COUNT(*) FROM ' + @db + '.dbo.sysobjects') AT SQL2K
-

SQL2K is here a linked server that has been defined with - sp_addlinkedserver.

-

There is one thing that you can do with EXEC() at a linked server, that you - cannot do with EXEC() on a local server: you can use parameters, both for - input and output. The confuse matters, you don't use parameters with names - starting with @, instead you use question marks (?) as parameter - holders. Say that you are on an SQL2005 box, and you are dying to know how - many orders VINET had in the Northwind database. Unfortunately, SQL2005 does - not ship with Northwind, but you have a linked server set up to an instance - of SQL2000 with Northwind. You can run this:

-
DECLARE @cnt int
-EXEC('SELECT ? = COUNT(*) FROM Northwind.dbo.Orders WHERE CustomerID = ?',
-      @cnt OUTPUT, N'VINET') AT SQL2K
-SELECT @cnt
-

Note here that the parameter values must appear in the order the parameter - markers appear in the query. When passing a parameter, you can either specify a - constant value or a variable.

-

You may ask why the inconsistency with a different parameter marker from - sp_executesql? Recall that linked servers in SQL Server are always accessed - through an OLE DB provider, and OLE DB uses ? as - the parameter marker, a convention inherited from ODBC. OLE DB translates - that parameter marker as is appropriate for the data source on the other end. - (Not all RDBMS use @ for variables.)

-

As with regular EXEC(), you can specify AS USER/LOGIN to use impersonation:

-
EXEC('SELECT COUNT(*) FROM ' + @db + '.dbo.sysobjects')
-    AS USER = 'davidson' AT SQL2K
-

This begs the question: is davidson here a local user or a remote - user at SQL2K? Books Online is not very clear - about this, but I did some - quick experimenting, and found that what you are impersonating is a local user or login, - not a login on the remote server. (The login to use on the remote server can be - defined with sp_addlinkedsrvlogin.)

-

Common Cases when to (Not) Use Dynamic SQL

-

When you read the various newsgroups on SQL Server, there is almost every day - someone who asks a question that is answered with use dynamic SQL with a quick example - to illustrate, but ever so often the person answering forgets to tell -about the implications on permissions or SQL injection. On top of that, far too many -examples use EXEC() without any thought of query plans. And while many of these - questions taken by the letter have no other answer than dynamic SQL, there is - often a real business problem which has a completely different solution - without dynamic SQL and - a much better one.

-

So, in this section I will explore some situations where you could use dynamic -SQL. You will see that sometimes dynamic SQL is a - good choice, but also that in many cases that it is an outright bad idea.

-

SELECT * FROM @tablename

-

A common question is why the following does not work:

-
CREATE PROCEDURE my_proc @tablename sysname AS
-   SELECT * FROM @tablename
- -

As we have seen, we can make this procedure work with help of dynamic SQL, but - it should also be clear that we gain none of the advantages with generating - that dynamic SQL in a stored procedure. You could just as well send the - dynamic SQL from the client. So, OK: 1) if the - SQL statement is very complex, you save some network traffic and you do encapsulation. -2) As we have seen, starting with SQL2005 there are methods to deal with - permissions. Nevertheless, this is a bad idea.

-

There seems to be several reasons why people want to parameterise the table - name. One camp - appears to be people who are new to SQL programming, but have experience - from other -languages such as C++, VB etc where parameterisation is a good thing. Parameterising -the table name to achieve generic code and to increase -maintainability seems like good programmer virtue.

-

But it is just that when it comes to database objects, the old truth does not -hold. In a proper database design, each table is unique, as it describes a - unique entity. (Or at least it should!) Of course, it is not uncommon to end - up with a dozen or more look-up tables that all have an id, a name - column and some auditing columns. But they do describe different entities, - and their semblance should be regarded as mere chance, and future - requirements may make the tables more dissimilar.

-

Furthermore, when it comes to building a query plan, each table has its set - of statistics and - presumptions that are by no means interchangeable, as far as SQL Server is - concerned. Finally, in - a complex data model, it is important to get a grip of what's being used. When you start to pass table and column names as parameters, you definitely - lose control.

-

So if you want to do the above (save the fact that SELECT * should not be - used in production code), to save some typing, you are on the wrong path. It is -much better to write ten or twenty stored procedures, even if they are similar -to each other.

-

(If your SQL statements are complex, so that there actually is a considerable - gain in maintainability to only have them in one place, despite different - tables being used, you could consider using a - pre-processor like the one in C/C++. You would still have one set of - procedures per table, but the code would be in one single include file.)

-

SELECT * FROM sales + @yymm

-

This is a variation of the previous case, where there is a suite of tables - that actually do describe the same entity. All tables have the same columns, and the name includes some partitioning - component, typically year and sometimes also month. New tables are created as - a new year/month begins.

-

In this case, writing one stored procedure per table is not really feasible. - Not the least, because the user may want to specify a date range for a search, so even - with one procedure per table you would still need a dynamic dispatcher.

-

Now, let's make this very clear: this is a flawed - table design. You should not have one sales table per month, you should - have one single sales table, and the month that appear in the table - name, should be the first column of the primary key in the united sales table. But you may be stuck with a legacy -application where you cannot easily change the table design. And, admittedly, there are situations where partitioning -makes sense. The table may be huge (say over 10 GB - in size), or you want to be able age to out old data quickly. But in such case you should do partitioning properly.

-

In the following, I will look at three approaches to deal with partitioning without using dynamic SQL.

-

Partitioned Tables

-

Partitioned tables were added in SQL2005. You can divide a table in up to 999 partition according to a partition -function. These partitions can be split up over different filegroups to spread out the load. Another important benefit -of partitioned tables is that deleting a partition is a pure meta-data operation, which means that if you want to throw -away all orders that are more than, say, 12 months old, you can do this with the wink of an eye.

-

Table partitioning is only available in Enterprise and Developer Edition, not in Standard. For this reason, I'm not -going into further details, but refer you to Books Online.

-

Views and Partitioned Views

-

If you have an old application, where you cannot easily merge the umpteen sales tables into one, because it would break -other parts of the application, a simple approach is - to define a view like this:

-
CREATE VIEW sales AS
-   SELECT year = '2006', col1, col2, ... FROM dbo.sales2006
-   UNION ALL
-   SELECT year = '2005', col1, col2, ... FROM dbo.sales2005
-   UNION ALL
-   ...
-

Instead of composing - the table name dynamically, you can now say:

-
SELECT ... FROM sales WHERE year = '2006' AND ...
-

Also, it's easy to add new tables to the view or remove old tables as the data is aged out. Unfortunately, this view is not terribly efficient, as the query will access - all tables in the view. Furthermore, the view is not updateable. But with a few more steps, you could make it into what SQL Server -knows as a partitioned view, -a feature added in SQL2000 (and available in all editions of SQL Server). A true partitioned view can be very efficient, because for - queries that include the partitioning column in the WHERE clause, SQL Server - will only access the relevant table(s). And such a view is updatable, so you - can insert data into it, and the data will end up in the right table.

-

Here is a - quick example/demo on how to properly set up a partitioned view. Assume that - as legacy of a poor design we have these three tables:

-
SELECT OrderID + 0 AS OrderID, OrderDate, CustomerID, EmployeeID
-INTO Orders96 FROM Northwind..Orders WHERE year(OrderDate) = 1996
-ALTER TABLE Orders96 ALTER COLUMN OrderID int NOT NULL
-
-SELECT OrderID + 0 AS OrderID, OrderDate, CustomerID, EmployeeID
-INTO Orders97 FROM Northwind..Orders WHERE year(OrderDate) = 1997
-ALTER TABLE Orders97 ALTER COLUMN OrderID int NOT NULL
-
-SELECT OrderID + 0 AS OrderID, OrderDate, CustomerID, EmployeeID
-INTO Orders98 FROM Northwind..Orders WHERE year(OrderDate) = 1998
-ALTER TABLE Orders98 ALTER COLUMN OrderID int NOT NULL
-go
-ALTER TABLE Orders97 ADD CONSTRAINT pk97 PRIMARY KEY (OrderID)
-ALTER TABLE Orders96 ADD CONSTRAINT pk96 PRIMARY KEY (OrderID)
-ALTER TABLE Orders98 ADD CONSTRAINT pk98 PRIMARY KEY (OrderID)
-

First step is to a add Year column to each table. These columns need a - default (so that processes that insert directly into these tables are - unaffected) and a CHECK constraint. Here is how it looks for Orders96:

-
ALTER TABLE Orders96 ADD Year char(4) NOT NULL
-   CONSTRAINT def96 DEFAULT '1996'
-   CONSTRAINT check96 CHECK (Year = '1996')
-

This column must be the first column in the primary key, so we need to drop - the current primary key and recreate it:

-
ALTER TABLE Orders96 DROP CONSTRAINT pk96
-ALTER TABLE Orders96 ADD CONSTRAINT pk96 PRIMARY KEY (Year, OrderID)
-

Again, this must be performed for all three tables. Finally, you can create - the view:

-
CREATE VIEW Orders AS
-   SELECT * FROM dbo.Orders96
-   UNION ALL
-   SELECT * FROM dbo.Orders97
-   UNION ALL
-   SELECT * FROM dbo.Orders98
-

Note: I have here use SELECT * to save some space in the article, but when you -define your real view, you should list the colunms explicitly. There is a risk that columns could come in different -order in the tables.

-

You now have a proper partitioned view that you can perform inserts and updates through. For instance you can run:

-
INSERT Orders(Year, OrderID, OrderDate, CustomerID, EmployeeID)
-   VALUES ('1997', 12000, '19970101', 'BERGS', 2)
-

And if you run a query like:

-
SELECT OrderID, OrderDate, EmployeeID
-FROM   Orders
-WHERE  Year = @year
-  AND  CustomerID = N'BERGS'
-

SQL Server will at run-time only access the OrdersNN table that maps to - @year. If you look at the query plan casually, it may seem that all three - tables are - accessed, but if you check the Filter operators you will find something - called STARTUP EXPR. This means that SQL Server determines at - run-time - whether to access the table or not. (In fact, when I tested this, I only got this result on SQL2005 and SQL2008. On -SQL2000, the start-up expression was not included for some reason I have not been able to understand.)

-

For your real-world case you may find it prohibitive to change the primary - key. In this case you could add a UNIQUE constraint with the partitioning - column + the real primary key. This will not be a proper partitioned view, - and the view will not be updatable, - but with some luck SQL Server may still apply start-up expressions, and access only one of the base tables. - At least I got it to work, when I ran a quick test. You - should verify that it works for your situation.

-

When a new table is added with a new year, the view needs to be redefined. If - this happens frequently, for instance by each month, you should probably set - up a job for this. I leave out example code, but it requires running - a cursor over sysobjects to compose a CREATE VIEW statement that you then - execute with sp_executesql or EXEC(). That would be an example of good use of - dynamic SQL.

-

This was a concentrated introduction to partitioned views. You can find the full rules for - partitioned views under the topic for CREATE VIEW in Books Online. Good - reading is also Stefan - Delmarco's detailed article - SQL - Server 2000 Partitioned Views.

-

Compatibility Views

-

If you have very many tables, there is a risk that you will hit a roadblock with a partitioned view: SQL Server only -permits 256 tables in a query. Henrik Staun Poulsen suggested an alternate solution that evades this restriction. You first create that new table, with -all the data in it. Then you drop the old tables, but replace them with views:

-
CREATE VIEW sales200612 AS
-   SELECT col1, col2, col3
-   FROM   sales
-   WHERE  yearmonth = '200612'
-

Old functions that uses dynamic SQL or whatever they do, can continue to do so. If they perform INSERT, UPDATE or -DELETE operations, you need to implement INSTEAD OF triggers to support this.

-

Obviously, this solution requires you to produce a lot of code, but you don't have to write it by hand; you can -easily write a program in the language of your choice to generate the views and triggers.

-

UPDATE tbl SET @colname = @value WHERE keycol = @keyval

-

In this case people want to update a column which they select at run time. -The above is actually legal in T-SQL, but what happens is simply that the - variable @colname -is assigned the value in @value for each affected row in the table.

-

In this case dynamic SQL would call for the user to have UPDATE permissions -on the table, something not to take lightly. So there is all reason to -avoid it. Here is a fairly simple workaround:

-
UPDATE tbl
-SET    col1 = CASE @colname WHEN 'col1' THEN @value ELSE col1 END,
-       col2 = CASE @colname WHEN 'col2' THEN @value ELSE col2 END,
-       ...
-

-If you don't know about the CASE expression, please look it up in Books Online. -It's a very powerful SQL feature.

-

Then again, one would wonder why people want to do this. Maybe it's because their -tables look like this:

-
CREATE TABLE products (prodid   prodid_type NOT NULL,
-                       prodname name_type   NOT NULL,
-                       ...
-                       sales_1  money       NULL,
-                       sales_2  money       NULL,
-                       ...
-                       sales_12 money       NULL,
-                       PRIMARY KEY (prodid))
-

-It could make more sense to move these sales_n columns to a second table:

-
CREATE TABLE product_sales (prodid prodid_type NOT NULL,
-                            month  tinyint     NOT NULL,
-                            sales  money       NOT NULL,
-                            PRIMARY KEY (prodid, month))
-

SELECT col AS @myname

-

The request here is to determine the name for a column in a result set at -run-time. My gut reaction, is that this should be handled -client-side. But if your client is a query window is Management Studio or -similar, this is kind of difficult. In any case, this is simple to do without any -dynamic SQL on SQL2005 and later:

-
DECLARE @mycolalias sysname
-SELECT @mycolalias = 'This week''s alias'
-
-CREATE TABLE #temp (a int NOT NULL,
-                    b int NOT NULL)
-
-INSERT #temp(a, b) SELECT 12, 17
-
-EXEC tempdb..sp_rename '#temp.b', @mycolalias, 'COLUMN'
-
-SELECT * FROM #temp
-

That is, you first get the data into a temp table, and then you use -sp_rename to rename the column along your needs. (You need to qualify sp_rename with tempdb to have -it to operate in that database.) You will get -an informational message Caution: Changing any part of an object name could -break scripts and stored procedures, but you may be able to live with that. -

-

This trick works on SQL2000 too, although not entirely without dynamic -SQL: -you need put the SELECT from the temp table in -EXEC():

-
EXEC('SELECT * FROM #temp')
-

This is because on SQL2000, sp_rename apparently does not trigger a recompile, -so if the the SELECT is in the same batch, the statement fails with Invalid -column name 'b'. There is yet one thing to be aware of on SQL2000: you -cannot use sp_rename in a stored procedure that is to be run by plain users, as sp_rename thinks -you need to be a member of the db_owner or db_ddladmin database roles, -even if this is only a temp table. This issue has been addressed in -SQL2005.

-

SELECT * FROM @dbname + '..tbl'

-

In this case the table is in another database which is somehow determined -dynamically. There seems to be several reasons why people want to do this, and - depending on your underlying reason, the solution is different.

-

Get Data from another Database

-

If you for some reason have your - application spread over two databases, what you absolutely not should do is - to have code that says:

-
SELECT ... FROM otherdb.dbo.tbl JOIN ...
-

This is bad, because if someone asks for a second environment on the same - server, you have a lot of code to change.

-

The best solution for this particular problem is to use synonyms, added in SQL2005:

-
CREATE SYNONYM otherdbtbl FOR otherdb.dbo.tbl
-

You can then refer to otherdb.dbo.tbl as just otherdbtbl. If - there is a need for a second set of databases, you only have to update the - synonyms, and there is no need to use dynamic SQL.

-

Yet a way to avoid dynamic SQL is to use stored procedures for all - inter-database communication. That is, if you are in db1 and need to get data from - db2, you call a stored procedure in db2. This can be dynamic, - because EXEC permits you to specify a variable that holds the name of the - procedure to execute.

-
SELECT @dbname = quotename(dbname) FROM ...
-SELECT @sp = @dbname + '..some_sp'
-EXEC @ret = @sp @par1, @par2...
-

If you want to get result sets back from db2, look at my article - How to Share Data between Stored Procedures - for suggestions.

-

There may still be cases you may find that dynamic SQL is the only feasible - situation. This can be done in two ways. The most obvious - is:

-
SELECT @dbname = quotename(dbname) FROM ...
-SELECT @sql = ' SELECT ... FROM ' + @dbname + ' .dbo.otherdbtbl ' +
-              ' JOIN dbo.localtbl ... '
-EXEC sp_executesql @sql, @params, ...
-

But, if the query is complex, and most of the tables are in the remote - database you can also do:

-
SELECT @sql = ' SELECT ... FROM dbo.othertbl ' +
-              ' JOIN ' + quotename(db_name()) + '.dbo.localtbl ... '
-SELECT @dbname = quotename(dbname) FROM ...
-SELECT @sp_executesql = @dbname + '..sp_executesql'
-EXEC @sp_executesql @sql, @params, ...
-

As above, I make use of that you can specify the procedure name dynamically - with EXEC. The trick here is that when you specify a system stored procedure - in three-part notation with the database name, the procedure executes in the - context of that database. Thus, the dynamic SQL in this example runs in - @dbname, not the current database.

-

Do Something in Every Database

-

This sounds to me like some sysadmin - venture, and for sysadmin tasks dynamic SQL is - usually a fair game, because neither caching nor permissions are issues. - Nevertheless there is an kind of alternative: sp_MSforeachdb, demonstrated by this example:

-
sp_MSforeachdb 'SELECT ''?'', COUNT(*) FROM sysobjects'
-

As you might guess, sp_MSforeachdb uses dynamic SQL internally, so - what you win is that you don't have to write the control loop yourself. I should - hasten to add that sp_MSforeachdb is not documented in Books Online, - which also means that use of it is not supported by Microsoft and it could be - changed or withdrawn from SQL Server without notice.

-

A "Master" Database

-

The scenario here is that you have a suite of databases with identical - schema. The typical reason they are different databases and not one, is that every - database serves a different customer, and each customer can access his - database (but of course no one else's). Some people - see a problem with the same stored procedures in fifty databases, - and believe that they face a maintenance nightmare. So they get the idea - that they should put the procedures in a "master" database. Yes, you can do that. It - will give you a much bigger maintenance problem, because your code will - entirely littered with dynamic SQL. - In fact, if you feel that this is the only alternative, you are better off - skipping stored procedures altogether and do all access from client code - instead. In such case there is only one place you need to specify the - database: the connection string.

-

What else can you do? Some people might suggest that you should collapse the - databases into one, and employ a strict - row-level security scheme. Personally, I would never accept such a solution - as a potential customer. In a complex application, bugs can easily lead to - that information is exposed to people who should not see it. Besides, - row-level security cannot be implemented entirely waterproof in SQL Server. - Whereas queries only would return the data they should, query plans and error - messages may indirectly disclose information to users who are not authorised - to see it.

-

Another wild approach is to use SQL Server's own master database and install the application procedures - as system procedures. I have not played with this for a long time, but I am told that it still works in SQL2008. In any case, this is entirely - unsupported. So while I mention the possibility, I don't give you the details - on how to do it and I strongly recommend that you don't go there.

-

What then is the real solution? Install the stored procedures in each database and develop - rollout routines for your SQL objects. You need this anyway, the day you want - to update the table definitions. This also permits you to have some - flexibility. Some customers may prefer to skip an upgrade. Other customers - may be prepared to pay for extra functions that only they have access to. Even more importantly, it permits you to easily scale out and move some - databases to a second server. I mentioned that as a customer, I would not - accept to share database with other customers. In fact, a security-aware - customer would not even accept to share the same instance of SQL Server, but - require his own instance.

-

(You may ask whether not synonyms could be used to implement the "master" - database. I have not been able to think of anything useful, but if you find - out something, please drop me a line.)

-

Creating an Object in Another Database

-

This question sometimes comes up. Most often people have problems with the - USE command. The correct solution is to avoid USE altogether in this case. In - fact, we have already seen how to do this:

-
SELECT @sql = 'CREATE VIEW ...'
-SELECT @sp_executesql = quotename(@dbname) + '..sp_executesql'
-EXEC @sp_executesql @sql
-

That is, make use of that you can set the database context by calling sp_executesql with three-part notation.

-

SELECT * FROM tbl WHERE col IN (@list)

-

It is fascinating how may people who put '1,2,3,4' in @list, and then are - puzzled why the query above does not return any rows. Well, if there is a row - where col has the value '1,2,3,4', you will get a match. These two - conditions are the same:

-
col IN (@list)
-col = @list
-

IN does not mean "parse whatever data there is at runtime as a - comma-separated list". It's a compile-time shortcut for - col = - @a OR col = @b OR ...

-

This is a very common question on the newsgroups, and Use dynamic SQL is a far too common answer. - Yes, you can do this with dynamic SQL, but it is an extremely poor solution. - You cannot pass the list as a parameter to sp_executesql, so you would have - to use EXEC() and be open to SQL injection. On - top of that, for long lists, IN has extremely poor performance in some - tests I did, it took SQL Server 15 seconds to build the query plan for a list - with 10000 elements.

-

The correct method is to unpack the list into a table with a user-defined - function or a stored procedure. In my article, Arrays and Lists in - SQL Server, I describe a whole range of ways to do this. I also present performance data for the various methods. (Dynamic SQL is at - the bottom of that list!) This is a long article, but there are jump-start - links in the beginning of the article, depending on which version of SQL - Server you are using.

-

SELECT * FROM tbl WHERE @condition

-

If you are considering to write the procedure

-
CREATE PROCEDURE search_sp @condition varchar(8000) AS
-   SELECT * FROM tbl WHERE @condition
-

Just forget it. If you are doing this, you have not completed the transition - to use stored procedure and you are still assembling your SQL code in the client. -But this example lapses into

-

Dynamic Search Conditions

-

A not too uncommon case is that the users should be able to select data from a broad set of -parameters. The procedure search_orders in the section on - SQL injection - is a very simple example of this.

-

Any programmer that tackles this realises that writing a static solution - with a tailor-made query for each combination of input parameters is - impossible. It most cases, it's simple to write a single static query with conditions like:

-
AND (CustomerID = @custid OR @custid IS NULL)
-

But in SQL2005 and earlier if is not possible to get good performance from such a query, but the only option for good - performance is to use dynamic SQL. This changed in SQL2008, provided that you use the RECOMPILE hint. However that is a bit complicated, because the original implementation had a serious bug, so Microsoft reverted on that change for a while. Rather than going into details here, I refer you to my article, Dynamic Search Conditions, where I - discuss this type of searches in more detail and where I present several methods, both with dynamic SQL and - static SQL. This article exists in two versions, one for - SQL2008 and later, and one for earlier versions.

-

Dynamic Crosstab

-

Another common request is to make a dynamic crosstab query, where you transform rows into columns. For instance, say -that you want to display the number of orders handled by each employee in Northwind with one column per year. This query -works well:

-
SELECT E.LastName,
-       [1996] = SUM(CASE Year(OrderDate) WHEN '1996' THEN 1 ELSE 0 END),
-       [1997] = SUM(CASE Year(OrderDate) WHEN '1997' THEN 1 ELSE 0 END),
-       [1998] = SUM(CASE Year(OrderDate) WHEN '1998' THEN 1 ELSE 0 END)
-FROM   Orders O
-JOIN   Employees E ON O.EmployeeID = E.EmployeeID
-GROUP  BY E.LastName
-

But in many situations you don't exactly which columns you will have in the data, or even how many there will be. For -instance, in this example, we may not know beforehand for which years there are orders.

-

One approach is to set an upper limit of how many output columns you support and use dummy names for the columns. -Once you have run the query, you use the technique I described in the section SELECT col AS @myname. -

-

However, in the very most cases, you will want to employ dynamic SQL for this. And there is not really any -alternative. A SELECT statement returns a table, and a table has a known number of columns with known names, so there is -no way you can write a static SELECT statement to achieve this.

-

The general technique is a two-step operation: 1) Get the unique values to pivot on. 2) with those values, generate a query like the one above. While it's a short description, it -takes some time to get everything in place. You can make a shortcut with the stored procedure -pivot_sp, something I have adapted from a procedure -originally written by SQL -Server MVP Itzik Ben-Gan. The procedure takes a number of parameters permitting you to specify the query, the rows to group -by and to pivot by, and which aggregation operation you want.

-

As this article is already long enough, I don't go into details to try to explain how it works, but leave it to you -to explore it on your own. I like to stress one thing though: The way pivot_sp is written, it is wide-open to -SQL injection, and it is very difficult, not to say impossible to make the procedure -fool-proof since it accepts query text as parameter. This is no problem as long as you use it as your own utility -procedure and have full control over the input, but you should not make a procedure like this one accessible to anyone. -Rather I recommend that you do

-
DENY EXECUTE ON pivot_sp TO public
-

To make sure that plain users cannot run it. If you make a call to pivot_sp in a stored procedure, this call -will succeed as ownership chaining applies. The file for -pivot_sp includes an example to demonstrate this.

-

Another option for dynamic crosstab is RAC, which is a third-party tool. I have never used it -myself, but I have heard several good comments about it.

-

SELECT * FROM tbl ORDER BY @col

-

This can easily be handled without dynamic SQL in this way:

-
SELECT col1, col2, col3
-FROM   dbo.tbl
-ORDER  BY CASE @col1
-               WHEN 'col1' THEN col1
-               WHEN 'col2' THEN col2
-               WHEN 'col3' THEN col3
-           END
-

Again, review the CASE expression in Books Online, if you are not acquainted -with it.

-

Note that if the columns have different data types you cannot lump them into - the same CASE expression, as the data type of a CASE - expression is always one and the same. Instead, you can do this:

-
SELECT col1, col2, col3
-FROM   dbo.tbl
-ORDER  BY CASE @col1 WHEN 'col1' THEN col1 ELSE NULL END,
-          CASE @col1 WHEN 'col2' THEN col2 ELSE NULL END,
-          CASE @col1 WHEN 'col3' THEN col3 ELSE NULL END
-

-If you also want to make it dynamic whether the order should be ascending or -descending, add one more CASE:

-
SELECT col1, col2, col3
-FROM   dbo.tbl
-ORDER  BY CASE @sortorder
-               WHEN 'ASC' THEN CASE @col1
-                                    WHEN 'col1' THEN col1
-                                    WHEN 'col2' THEN col2
-                                    WHEN 'col3' THEN col3
-                                END
-               ELSE NULL
-           END ASC,
-           CASE @sortorder
-               WHEN 'DESC' THEN CASE @col1
-                                     WHEN 'col1' THEN col1
-                                     WHEN 'col2' THEN col2
-                                     WHEN 'col3' THEN col3
-                                 END
-               ELSE NULL
-           END
-

Or use the form in the second example to deal with different data types.

-

SQL Server MVP Itzik Ben-Gan had a good article on this topic in the March -2001 issue of SQL Server Magazine, -where he offers other suggestions.

-

It should be added that these solutions has the disadvantage that they will always cause a sort which for a large -data set could be expensive. If you add an ORDER BY clause in dynamic SQL, the optimizer may avoid the sort if there is -a suitable index.

-

SELECT TOP @n FROM tbl

-

This is no longer an issue, since SQL2005 added new syntax that permits a variable:

-
SELECT TOP(@n) col1, col2 FROM tbl
-

On SQL2000, TOP does not accept variables, so you need to use dynamic SQL to use -TOP. But there is an alternative:

-
CREATE PROCEDURE get_first_n @n int AS
-SET ROWCOUNT @n
-SELECT au_id, au_lname, au_fname
-FROM   authors
-ORDER  BY au_id
-SET ROWCOUNT 0
-

It can be disputed whether SET ROWCOUNT @n is really a better solution than - running a dynamic SQL statement with TOP. A dynamic TOP is probably a - better choice, as long as you can accept the security implications. (But it's - not worth to change the permissions only for this.)

-

I guess a common reason for wanting to do this is to implement paging in web - applications. SQL Server MVP Aaron Bertrand has an article which is the - standard reference on - this topic.

-

CREATE TABLE @tbl

-

The desire here is to create a table of which the name is determined at - run-time.

-

If we just look at the arguments against using dynamic SQL in stored - procedures, few of them are really applicable here. If a stored procedure has a - static CREATE TABLE in it, the user who runs the procedure must have - permissions to create tables, so dynamic SQL - will not change anything. Plan caching obviously has nothing to do with - it. Etc.

-

Nevertheless: Why? Why would you want to do this? If you are creating tables on the fly in your - application, you have missed some fundamentals about database design. In a - relational database, the set of tables and columns are supposed to be - constant. They may change with the installation of new versions, but not during - run-time.

-

Sometimes when people are doing this, it appears that they want to construct -unique names for temporary tables. This is completely unnecessary, as this is a -built-in feature in SQL Server. If you say:

-
CREATE TABLE #nisse (a int NOT NULL)
-

then the actual name behind the scenes will be something much longer, and no -other connections will be able to see this instance of #nisse.

-

If you want to create a permanent table which is unique to a user, but you - don't want to stay connected and therefore cannot use temp tables, it may be -better to create one table that all clients can share, but where the first -column is a key which is private to the client. I discuss this method a little - more closely in my article How to - Share Data between Stored Procedures.

-

CREATE TABLE with Unknown Columns

-

Sometimes I see persons on the newsgroups that are unhappy, because they - create a temp table from dynamic SQL, and then they can't access it, because it - disappeared when the dynamic SQL exited. When told that they have to create the - table outside the dynamic SQL, they respond that they can't, because they don't - know the structure of the table until run-time.

-

One solution is to create a global temp table, one with two # in the name, - for instance ##temp. Such a table is visible to all processes (so you may have - to take precautions to make the name unique), and unless you explicitly drop it, it exists - until your process exits.

-

But the real question is: what are these guys up to? If you are - working with a relational database, and you don't know the structure of your - data until run-time, then there is something fundamentally wrong. As I have - never been able to fully understand what the underlying business requirements - are, I can't really provide any alternatives. But I would suggest that if you - need to go this road, you should seriously consider to run your SQL from a client - program. Because, all access - to that table would have to be through dynamic SQL, and composing - dynamic SQL strings is easier in languages with better string capabilities, - be that C#, VB or Perl.

-

Linked Servers

-

This is similar to parameterising the database name, - but in this case we want to access a linked server of which the name is - determined at run-time.

-

Two of the solutions for dynamic database names apply here as well:

- -

-If you want to join a local table with a remote table on some remote server, -determined in the flux of the moment, dynamic SQL is probably the best way if -you are on SQL2000. -There exists however an alternative, although it's only usable in some -situations. You can use sp_addlinkedserver to define the linked server at -run-time, -as demonstrated by this snippet:

-
EXEC sp_addlinkedserver MYSRV, @srvproduct='Any',
-                               @provider='SQLOLEDB', @datasrc=@@SERVERNAME
-go
-CREATE PROCEDURE linksrv_demo_inner WITH RECOMPILE AS
-   SELECT * FROM MYSRV.master.dbo.sysdatabases
-go
-EXEC sp_dropserver MYSRV
-go
-CREATE PROCEDURE linksrv_demo @server sysname AS
-   IF EXISTS (SELECT * FROM master..sysservers WHERE srvname = 'MYSRV')
-      EXEC sp_dropserver MYSRV
-   EXEC sp_addlinkedserver MYSRV, @srvproduct='Any',
-                           @provider='SQLOLEDB', @datasrc=@server
-   EXEC linksrv_demo_inner
-   EXEC sp_dropserver MYSRV
-go
-EXEC linksrv_demo 'Server1'
-EXEC linksrv_demo 'Server2'
-

-There are two procedures. linksrv_demo_inner is the procedure where we -actually access the linked server. As the linked server must exist when the -procedure is created, I first create a dummy entry for MYSRV, which I subsequently -drop once the procedure has been created. (Not only must the linked server exist, it must also have the database and -tables that you access.) linksrv_demo is the outside interface which takes a -server name as a parameter, and then at run-time defines MYSRV to point to -@server.

-

-The above is only possible under certain conditions:

- -

-As you can see in the example, I've added WITH RECOMPILE to linksrv_demo_inner. -This is a safety precaution, to prevent that a cached plan does not access a -different server. I don't think this is really necessary, as SQL Server should sense the -changed definition. In fact, you may not even have to split the code over two -procedures, but as they say, better safe than sorry.

-

OPENQUERY

-

The rowset functions OPENQUERY and OPENROWSET often calls for dynamic SQL. Their second argument - is an SQL string, and they do no accept variables. - (This is because the optimizer builds a plan for the distributed query when - the procedure is compiled.) So any single parameter you want to pass to the - SQL statement for that remote server requires you to use dynamic SQL. Since the - remote SQL string can include string literals, you - may have to deal with up to three - levels of nested quotes. If you don't watch out, you can spend a full day - looking at things like:

-
DECLARE @sql varchar(8000)
-SELECT @sql = 'SELECT * FROM OPENQUERY(MYSRV, ' +
-              '''SELECT * FROM Northwind.dbo.Orders ' +
-              'WHERE CustomerID = N''''VINET'''''')'
-PRINT @sql
-EXEC(@sql)
-

to try to find out if you might you have one ' too many or too - few.

-

Strict discipline is absolutely necessary when working with dynamic SQL for - OPENQUERY. The function quotestring() - that I showed you earlier can be of great help: -

-
DECLARE @remotesql nvarchar(4000),
-        @localsql  nvarchar(4000),
-        @state     char(2)
-
-SELECT @state = 'CA'
-SELECT @remotesql = 'SELECT * FROM pubs.dbo.authors WHERE state = ' +
-                     dbo.quotestring(@state)
-SELECT @localsql  = 'SELECT * FROM OPENQUERY(MYSRV, ' +
-                     dbo.quotestring(@remotesql) + ')'
-
-PRINT @localsql
-EXEC (@localsql)
-

The built-in function quotename() is usually not useful here, as the SQL statement easily - can exceed the limit of 129 characters for the input parameter to - quotename(). -

-

On SQL2005 and later, you can use EXEC() to run an SQL statement on a - linked - server. Since EXEC() at linked servers can take parameters, this can make - things considerably easier. Then again, you can join OPENQUERY with local - tables, so that only rows of interest are brought across the wire. This you - cannot do with EXEC().

-

Dynamic Column Widths

-

Say that you write a stored - procedure that is to present some data, and the GUI it is to be run from is - Query Analyzer or SQL Server Management Studio (presumably because it is a sysadmin procedure). To make the - output easy to digest, you want the column width to be so wide that no data - is truncated, but neither do you want any extraneous spaces. This is - something you can achieve with dynamic SQL. Typically you would use a temp table - to hold the data, in which case there are no permission issues.

-

Rather than giving an example, I refer you to the source code for the popular (but undocumented) - system procedure sp_who2. You can find the code by entering exec - master..sp_helptext sp_who2.

-

Dynamic SQL and Maintenance Tasks

-

I've written this text with a main focus on application code, because it is - mainly in application tasks, bad usage of dynamic SQL can cause serious harm - by opening for SQL injection, poor - query-plan reuse, and result in code that is - difficult to read and maintain.

-

Here, I like to briefly discuss code is for maintenance jobs, code that - runs once a - night or once a week or even less frequently. Generally, for this sort of - code, dynamic SQL is almost always a fair game. Query - plans are rarely an issue. And if the code is to be run by users with - sysadmin privileges, there are no permissions issues. The same applies to - code that does not require permissions outside the database, and is to be run - by users with db_owner privileges.

-

There are however, two points about SQL injection I like to make.

-
    -
  1. If you are a DBA that writes some stored procedure to be run by junior - operators that do not have sysadmin privilege themselves, you must of - course take precaution against SQL injection, so that they don't outsmart - you.
    2. -
  2. If you write a job that performs operations on tables in - every database, be careful to use quotename() when you build the SQL strings. - This is particularly important if there are non-sysadmin users that own - databases. A user could create a table with a name that injects an SQL command - into - your maintenance script when you run it. If you are the DBA at a hosting - company, this is a risk that you definitely should not neglect.
    3. -
-

Acknowledgements and Feedback

-

I like to thank the following persons who have provided valuable suggestions - and input for this article: SQL Server MVPs Tibor Karaszi, Keith Kratochvil, - Steve Kass, Umachandar Jaychandran, Hal Berenson and Aaron Bertrand, as well as Pankul Verma, - Anthony Faull, Henrik Staun Poulsen, Karl Jones, Jim Higgins, Marcus - Hansfeldt, Gennadi Gretchkosiy, Jeremy Lubich and Simon Hayes. I also like to thank Frank Kalis for providing the -German - translation.

-

Not the least I like to thank all you people who have pointed out typos -and spelling errors. Just keep those letters and cards coming!

-

If you have suggestions for improvements or corrections on contents, language or -formatting, please mail me at - esquel@sommarskog.se. -If you have technical questions that any knowledgeable person could answer, I encourage you to -post to any of the newsgroups microsoft.public.sqlserver.programming or comp.databases.ms-sqlserver.

-

Revision History

-

2015-04-14 A very small change, in fact the addition of a single dot that was missing in SET @sp in the section linked servers. Thanks to Jim Higgins for pointing out this error.

-

2011-06-23 Updated the text in the section on Dynamic Search Conditions to mention the RECOMPILE hint, since the bug mentioned in the entry from 2009-02-14 has been fixed.

-

2009-09-12 Gennadi Gretchkosiy pointed out using that SELECT * in a - partitioned view is not OK. If the columns come in different order in the underlying tables, you will get a mess.

-

2009-02-14 - Removed text in the section on Dynamic Search Conditions that referred -to the new behaviour of OPTION (RECOMPILE) in SQL 2008, that Microsoft is now reverting -on because of a serious -bug.

-

2008-12-06 Modified the section on dynamic crosstab to stress that pivot_sp is -open to SQL injection.

-

2008-12-02 Updated the article for SQL2008. Rewrote the section on Sales + @yymm -tables and added one more approach. Added a section on dynamic crosstab. Various other minor -changes.

-

2008-06-06 Added an example on how to deal with dynamic sort -order in the section on ORDER BY.

-

2008-03-18 Added a section on how to handle a -dynamic column alias.

-

2006-12-27 In the section Caching - Query Plans, added a note - on forced parameterisation and a demo of the performance penalty for failing - to use parameterised queries.

-

2006-07-25 Corrected syntax in example with - cursor variable after comment from Anthony Faull.

-

2006-04-23 Thoroughly reworked the article to cover SQL2005 in - full, resulting in lots of new text, lots of old text dropped, and many - sections rearranged. I'm now - more strongly favouring sp_executesql over EXEC(), and - I put more stress on SQL - injection. I also stress the importance of using parameterised statements for - query-plan reuse, and I note that prefixing with dbo is essential for - query-plan reuse. The examples of cases where (not) to use dynamic SQL have - had an overhaul as well, if not equally drastic. I'm now giving a very quick - example of partitioned views for the sales + @yymm case. The article now also - includes snippets for - parameterised commands from VB6 and VB .Net.

-

2005-04-17 Added example of EXEC + - sp_executesql with OUTPUT parameter. Added use of nvarchar(max) on - SQL2005 for quotestring and elsewhere.

-

2004-02-08 - German translation now available. Minor language corrections.

-

2003-12-02 Added example of using - cursor variable with dynamic SQL. Modified description - of first parameter to sp_executesql.

-

Back to my home page.

- - - -
-
- -
-
+ + + +The Curse and Blessings of Dynamic SQL + + + + + + +

The Curse and Blessings of Dynamic SQL

+

An SQL text by Erland Sommarskog, +SQL Server MVP. Latest revision: 2015-04-14.

+

An earlier version of this article is + also available in + German. Translations + provided by SQL Server MVP Frank Kalis.

+

Introduction

+

If you follow the various newsgroups on Microsoft SQL Server, +you often see people asking why they can't do:

+
SELECT * FROM @tablename
+SELECT @colname FROM tbl
+SELECT * FROM tbl WHERE x IN (@list)
+

For all three examples you can expect someone to answer Use dynamic SQL + and give a quick example on how to do it. Unfortunately, for all three examples + above, dynamic SQL is a poor solution. + On the other hand, there are situations where dynamic SQL + is the best or only way to go.

+

In this article I will discuss the use of dynamic SQL + in stored procedures and to a minor extent from client languages. To set the + scene, I start with a very quick overview on application + architecture for data access. I then proceed to describe the feature dynamic + SQL as such, + with a quick introduction followed by the gory syntax details. Next, I continue with a discussion on SQL injection, a + security issue that it is essential to have good understanding of when + you work with dynamic SQL. This is followed by a section where I discuss why + we use stored procedures, and how that is affected by the use of dynamic SQL. + I carry on with a section on good practices and tips for writing + dynamic SQL. I conclude by reviewing a number of + situations where you could use dynamic SQL and + whether it is a good or bad idea to do it.

+

The article covers all versions of SQL Server from SQL6.5 to + SQL2008, with emphasis on SQL2000 and later +versions.

+ +

Contents:

+ +Accessing Data from an Application
+Introducing Dynamic SQL
+ +A First Encounter
+sp_executesql
+EXEC()
+ +SQL Injection a Serious Security Issue
+Dynamic SQL and Stored Procedures
+ +The Permission System
+Caching Query Plans
+Reducing Network Traffic
+Encapsulating Logic
+Keeping Track of what Is Used
+Ease of Writing SQL Code
+Addressing Bugs and Problems
+ +Good Coding Practices and Tips for Dynamic SQL
+ +Use Debug Prints!
+Nested Strings
+Spacing and Formatting
+Dealing with Dynamic Table and Column Names
+Quotename, Nested Strings and Quotestring
+QUOTED_IDENTIFIER
+sp_executesql and Long SQL Strings in SQL 2000
+Dynamic SQL in User-Defined Functions
+Cursors and Dynamic SQL
+ +EXEC() at Linked Server
+Common Cases when to (Not) Use Dynamic SQL
+ +SELECT * FROM @tablename
+SELECT * FROM sales + @yymm
+UPDATE tbl SET @colname = @value WHERE keycol = @keyval
+ SELECT col AS @myname
+SELECT * FROM @dbname + '..tbl'
+SELECT * FROM tbl WHERE col IN (@list)
+SELECT * FROM tbl WHERE @condition
+Dynamic Search Conditions
+Dynamic Crosstab
+SELECT * FROM tbl ORDER BY @col
+SELECT TOP @n FROM tbl
+CREATE TABLE @tbl
+CREATE TABLE with Unknown Columns
+Linked Servers
+OPENQUERY
+Dynamic Column Widths
+Dynamic SQL and Maintenance Tasks
+ +Acknowledgements and Feedback
+Revision History + +

Note: many of + the code samples in this text works against the pubs and Northwind databases + that ship with SQL2000 and SQL7, but not with SQL2005 +and later. You can download + these databases from + + Microsoft's web site.
+ +

+ +

Accessing Data from an Application

+

Before I describe dynamic SQL, I like to briefly discuss the various ways you can + access data from an application to give an overview of what I'll be + talking about in this article.

+

(Note: all through this text I will + refer to client as anything that accesses SQL Server from the outside. + In the overall application architecture that may in fact be a middle tier or + a business layer, but as that is of little interest to this article, I use + client in the sake of brevity.)

+

There are two main roads to go, and then there are forks and sub-forks.

+
    +
  1. Send SQL statements from the client to SQL + Server. +
      +
    1. Rely on SQL generated by the client API, using options like + CommandType.TableDirect and methods like .Update. LINQ falls into this group as well.
      2. +
    2. Compose the SQL strings in the client code. +
        +
      1. Build the entire SQL string with parameter values expanded.
        2. +
      2. Use parameterised queries.
        3. +
      3. +
    2. +
  2. Perform access through stored procedures.
    3. +
      +
    1. Stored procedures in T-SQL
      2. +
        +
      1. Use static SQL only.
        2. +
      2. Use dynamic SQL together with static SQL.
        3. +
      +
    2. Stored procedures in a CLR language such as C# or VB .Net. (SQL2005 + and later.)
      3. +
    +
+

Fork 1-a may be good for simple tasks, but you are likely to + find that you outgrow it as the complexity of your application increases. + In any case, this approach falls entirely outside the scope of this article.

+

Many applications are built along the principles of fork 1-b, + and as long as you take the sub-fork 1-b-ii, it does not have to + be bad. (Why 1-b-i is bad, is + something I will come back to. Here I will just drop two keywords: + SQL + Injection and Query-Plan Reuse.) Nonetheless, in many shops the mandate is + that you should use stored procedures. When you use stored procedures with + only static SQL, users do + not need direct permissions to access the tables, only permissions to execute the stored + procedures, and thus you can use the stored procedure to control what users + may and may not do.

+

The main focus for this text is sub-fork 2-a-ii. When used + appropriately, dynamic SQL in stored + procedures can be a powerful addition to static SQL. But some of the questions on the newsgroups leads to + dynamic SQL in stored procedures that are so meaningless, that these people + would be better off with fork 1-b instead.

+

Finally, fork 2-b, stored procedures in the CLR, is in many + regards very similar to fork 1-b, since all data access from CLR + procedures is through generated SQL strings, parameterised or unparameterised. If you have settled on SQL + procedures for your application, there is little point in rewriting them into + the CLR. However, CLR code can be a valuable supplement for tasks that are + difficult to perform in T-SQL, but you yet want to perform server-side.

+

Introducing Dynamic SQL

+

In this chapter I will first look at some quick examples of dynamic SQL and + point out some very important implications of using dynamic SQL. I will then + describe sp_executesql and EXEC() in detail, the two commands you can use to + invoke dynamic SQL from T-SQL.

+

A First Encounter

+

Understanding dynamic SQL itself is not difficult. Au contraire, it's rather + too easy to use. Understanding the fine details, though, takes a little + longer time. If you start out using dynamic SQL casually, you are bound to face + accidents when things do not work as you have anticipated.

+

One of the problems + listed in the introduction was how to write a stored procedure that takes a + table name as its input. Here are two examples, based on the two ways to do dynamic SQL in + Transact-SQL:

+
CREATE PROCEDURE general_select1 @tblname sysname,
+                                 @key     varchar(10) AS
+DECLARE @sql nvarchar(4000)
+SELECT @sql = ' SELECT col1, col2, col3 ' +
+              ' FROM dbo.' + quotename(@tblname) +
+              ' WHERE keycol = @key'
+EXEC sp_executesql @sql, N'@key varchar(10)', @key
+
CREATE PROCEDURE general_select2 @tblname nvarchar(127),
+                                 @key     varchar(10) AS
+EXEC('SELECT col1, col2, col3
+      FROM ' + @tblname + '
+      WHERE keycol = ''' + @key + '''')
+

Before I say anything else, permit me to point out that these are examples of + bad usage of dynamic SQL. + Passing a table name as a parameter + is not how you should write stored procedures, and one aim of this article is + to explain this in detail. Also, the two examples are not equivalent. While + both examples are bad, the second + example has several problems that the first does not have. What these + problems are will be apparent as you read this text.

+

Whereas the above looks very simple and easy, there are some very important things + to observe. The first thing is permissions. You may know that when you + use stored procedures, users do not need permissions to access the tables accessed by the stored procedure. This does not apply when + you use dynamic SQL! For the procedures above to execute + successfully, the users must have SELECT permission on the table in @tblname. In SQL2000 and earlier this is an absolute rule with no + way around it. Starting with SQL2005, there are alternatives, something I will + come + back to in the section The Permission System.

+

Next thing to observe is that the dynamic SQL is not part of + the stored procedure, but constitutes its own scope. Invoking a block + of dynamic SQL is akin to call a nameless stored procedure created ad-hoc. This + has a number of consequences:

+ +

As you've seen there are two ways to invoke dynamic SQL, sp_executesql and + EXEC(). sp_executesql was added in SQL7, whereas EXEC() has been around + since SQL6.0. In application code, sp_executesql should be your choice 95% + of the time for reasons that will prevail. For now I will only give two + keywords: SQL Injection and + Query-Plan Reuse. EXEC() is mainly useful for quick throw-away things and DBA tasks, but also + comes to the rescue in SQL2000 and SQL7 + when the SQL string exceeds 4000 characters. And, obviously, in SQL6.5, EXEC() is the sole choice. In the next + two sections we will look at these two commands in detail.

+ +

sp_executesql

+

sp_executesql is a built-in stored procedure that takes two + pre-defined parameters and any number of user-defined parameters.

+

The first parameter @stmt is mandatory, and contains a batch of one or + more SQL statements. The data type of @stmt is ntext in SQL7 and SQL2000, + and nvarchar(MAX) in SQL2005 and later. Beware that you must pass an nvarchar/ntext + value (that is, a Unicode value). A varchar value won't do.

+

The second parameter @params is optional, but you will use it 90% of the + time. @params declares the parameters that you refer to in @stmt. The syntax + of @params is exactly the same as for the parameter list of a stored procedure. The + parameters can + have default values and they can have the OUTPUT marker. Not all parameters you declare must actually + appear in the SQL string. (Whereas all variables that appear in the SQL + string must be declared, either with a DECLARE inside @stmt, or in + @params.) Just like @stmt, the data + type of @params is ntext SQL2000 and earlier and nvarchar(MAX) +since SQL2005.

+

The rest of the parameters are simply the parameters that you declared in + @params, and you pass them as you pass parameters to a stored procedure, either + positional or named. To get a value back from your output parameter, you must + specify OUTPUT with the parameter, just like when you call a stored + procedure. Note that the first two parameters, @stmt and @params, must be specified positionally. You + can provide the parameter names for them, but these names are blissfully ignored.

+

Let's look at an example. Say that in your database, many tables + have a column LastUpdated, which holds the time a row last was + updated. You want to be able to find out how many rows in each table that were modified at + least once during a period. This is not something you run as part of the application, but + something you run as a DBA from time to time, so you just keep it as a script + that you have a around. Here is what it could look like:

+
DECLARE @tbl    sysname,
+        @sql    nvarchar(4000),
+        @params nvarchar(4000),
+        @count  int
+
+DECLARE tblcur CURSOR STATIC LOCAL FOR
+   SELECT object_name(id) FROM syscolumns WHERE name = 'LastUpdated'
+   ORDER  BY 1
+OPEN tblcur
+
+WHILE 1 = 1
+BEGIN
+   FETCH tblcur INTO @tbl
+   IF @@fetch_status <> 0
+      BREAK
+
+   SELECT @sql =
+   N' SELECT @cnt = COUNT(*) FROM dbo.' + quotename(@tbl) +
+   N' WHERE LastUpdated BETWEEN @fromdate AND ' +
+   N'                           coalesce(@todate, ''99991231'')'
+   SELECT @params = N'@fromdate datetime, ' +
+                    N'@todate   datetime = NULL, ' +
+                    N'@cnt      int      OUTPUT'
+   EXEC sp_executesql @sql, @params, '20060101', @cnt = @count OUTPUT
+
+   PRINT @tbl + ': ' + convert(varchar(10), @count) + ' modified rows.'
+END
+
+DEALLOCATE tblcur
+

I've put the lines that pertain directly to the dynamic SQL in bold face. You + can see that I have declared the @sql and @params variables to be of the maximum + length for nvarchar variables in SQL2000. In SQL2005 +and later, you may want to make it a routine to + declare @sql as nvarchar(MAX), more about this just below.

+

When I assign the @sql variable, I am careful to format the statement so that + it is easy to read, and I leave in spaces to avoid that two concatenated + parts are glued together without space in between, which could cause a syntax + error. I put the table name in + quotename() in case a table name has any special + characters in it. I also prefix the table name with "dbo.", which is a good habit, as we will see when we look at dynamic SQL and + query plans. Overall, I will cover this sort of + good practices more in detail later in the text. Note also the appearance of + '' around the date literal the rule in T-SQL is that to include the string + delimiter in a string, you must double it.

+

In this example, the dynamic SQL has three parameters: one mandatory input + parameter, one optional input parameter, and one + output parameter. I've assumed that this time the DBA wanted to see + all changes made after 2006-01-01, which is why I've left out @todate in the call + to sp_executesql. Since I left out one variable, I must specify the last, + @cnt by name the same rules as when you call a stored procedure. Note also + that the variable is called @cnt in the dynamic SQL, but @count in the + surrounding script. Normally, you might want to use the same name, but I + wanted to stress that the @cnt in the dynamic SQL is only visible within the + dynamic SQL, whereas @count is not visible there.

+

You may note that I've prefix the string literals with N to denote that + they are Unicode strings. As @sql and @params are declared as nvarchar, + technically this is not necessary (as long as you stick to your 8-bit character + set). However, when you provide any of the strings directly in the call to + sp_executesql, you must specify the N, as in this fairly silly example:

+
EXEC sp_executesql N'SELECT @x', N'@x int', @x = 2
+

If you remove any of the Ns, you will get an error message. Since sp_executesql is a built-in stored procedure, there is no implicit + conversion from varchar.

+

You may wonder why I do not pass @tbl as a parameter as well. The answer is + that you can't. Dynamic SQL is just like any other SQL. You can't specify a + table name through a variable in T-SQL, that's the whole story. Thus, when you + need to specify things like table names, column names etc dynamically, + you must interpolate them into the string.

+

If you are on SQL2000 or SQL7, there is a limitation with sp_executesql + when it comes to the length of the SQL string. While the parameter is ntext, + you cannot use this data type for local variables. Thus, you will have to + stick to nvarchar(4000). In many cases this will do fine, but it is not + uncommon to exceed that limit. In this case, you will need to use EXEC(), + described just below.

+

Since SQL2005, this is not an issue. Here you can use the new data type + nvarchar(MAX) which can hold as much data as ntext, + but without the many restrictions of ntext.

+

EXEC()

+ +

EXEC() takes one parameter which is an SQL statement to + execute. The parameter can be a concatenation of + string variables and string literals, but cannot include calls to functions + or other operators. For very simple + cases, EXEC() is less hassle than sp_executesql. For instance, say that you + want to run UPDATE STATISTICS WITH FULLSCAN on some selected tables. It could + look like this:

+
FETCH tblcur INTO @tbl
+IF @@fetch_status <> 0 BREAK
+EXEC('UPDATE STATISTICS [' + @tbl + '] WITH FULLSCAN')
+

In the example with sp_executesql, I used quotename(), but here I've let it + suffice with adding brackets, in case there is a table named Order + Details (which there is in the Northwind database). Since EXEC only permits + string literals and string variables to be concatenated and not arbitrary + expressions, this is not legal:

+
EXEC('UPDATE STATISTICS ' + quotename(@tbl) + ' WITH FULLSCAN')
+

Best practice is to always use a variable to hold the SQL statement, so the + example would better read:

+
FETCH tblcur INTO @tbl
+IF @@fetch_status <> 0 BREAK
+SELECT @sql = 'UPDATE STATISTICS ' + quotename(@tbl) + ' WITH FULLSCAN'
+EXEC(@sql)
+

The fact that you can concatenate strings within EXEC() permits you to + make very quick things, which can be convenient at times, but it can lead to + poor habits in application code. However, there are situations where this is an + enormous blessing. As I mentioned, in SQL7 and SQL2000, you can in practice + only use 4000 characters in your SQL string with sp_executesql. EXEC does + not have this limitation, since you can say:

+
EXEC(@sql1 + @sql2 + @sql3)
+

Where all of @sql1, @sql2 and @sql3 can be 4000 characters long or even + 8000 characters as EXEC() permits you to use varchar.

+

Since you cannot use parameters, you cannot as easily get values out from + EXEC() as you can with sp_executesql. You can, however, use INSERT-EXEC + to insert the result set from EXEC() into a table. I will show you an example + later on, when I also show you how you can + use EXEC() to pass longer strings than 4000 characters to sp_executesql.

+

In SQL2005 and later, EXEC() permits impersonation so that you can say:

+
EXEC(@sql) AS USER = 'mitchell'
+EXEC(@sql) AS LOGIN = 'CORDOBA\Miguel'
+

This is mainly a syntactical shortcut that saves you from embedding the + invocation of dynamic SQL in EXECUTE AS and REVERT. (I discuss these + statements more in detail in my article + Granting Permissions Through Stored + Procedures.)

+

SQL2005 adds a valuable extension to EXEC(): you can use + it to execute + strings on linked servers. I will cover this form + of EXEC() in a separate section + later in this text.

+

SQL Injection a Serious Security Issue

+

Before you start to use dynamic SQL all over town, you need to learn about + SQL injection and how you protect your application against it. SQL + injection is a technique whereby an intruder enters data that causes your application + to execute SQL statements you did not intend it to. SQL injection is possible as soon there is dynamic SQL which is + handled carelessly, be that SQL statements sent from the client, dynamic SQL + generated in T-SQL stored procedures, or SQL batches executed from CLR stored + procedures. This is not a line of attack that is unique to + MS SQL Server, but all RDBMS are open to it.

+

Here is an example. The purpose of the procedure below is to permit users to + search for orders by various conditions. A real-life example of such a + procedure would have many more parameters, but I've cut it down to two to be + brief. (This is, by the way, a problem for which dynamic SQL is a very good + solution.) As the procedure is written, it is open for SQL injection:

+
CREATE PROCEDURE search_orders @custid   nchar(5)     = NULL,
+                               @shipname nvarchar(40) = NULL AS
+DECLARE @sql nvarchar(4000)
+SELECT @sql = ' SELECT OrderID, OrderDate, CustomerID, ShipName ' +
+              ' FROM dbo.Orders WHERE 1 = 1 '
+IF @custid IS NOT NULL
+   SELECT @sql = @sql + ' AND CustomerID LIKE ''' + @custid + ''''
+IF @shipname IS NOT NULL
+   SELECT @sql = @sql + ' AND ShipName LIKE ''' + @shipname + ''''
+EXEC(@sql)
+

Before we look at a real attack, let's just discuss this from the point of view + of user-friendliness. Assume that the input for the parameters @custid and @shipname comes directly + from the user and a nave and innocent user wants to look for orders where ShipName is Let's Stop N Shop, so he enters Let's. Do you see + what will happen? Because @shipname includes a single quote, he will get a + syntax error. So even if you think that SQL injection is no issue to you, + because you trust your users, you still need to read this section, so that they + can search for Brian O'Brien and Samuel Eto'o.

+

So this is the starting point. A delimiter, usually a single quote, affects your dynamic SQL, and + a malicious user + can take benefit of this. For + instance, consider this input for @shipname:

+
' DROP TABLE Orders --
+

The resulting SQL becomes:

+
SELECT * FROM dbo.Orders WHERE 1 = 1  AND ShipName LIKE '' DROP TABLE orders --'
+

This is a perfectly legal batch of T-SQL, including the text in red. Since there is something called permissions in SQL Server, this + attack may or may not succeed. A plain + user who runs a Windows application and who logs into SQL Server with his + own login, is not likely to have + permissions to drop a table. But it is not uncommon for web applications to + have a general login that runs SQL queries on behalf of the users. And if this web app logs into SQL Server with sysadmin or db_owner + privileges, the attack succeeds. Mind you, with sysadmin rights, the + attacker can add users and logins as he pleases. And if the service account + for SQL Server has admin privileges in Windows, the attacker has access into + your network far beyond SQL Server through xp_cmdshell. (Which is + disabled by default on SQL2005 and later, but if the attacker has achieved + sysadmin rights on the server, he can change that.)

+

Typically, an attacker first tests what happens + if he enters a single quote (') in an input field or a URL. If this + yields a syntax error, the attacker knows that there is a vulnerability. He + then finds out if he needs any extra tokens to terminate the query, and then + he can add his own SQL statement. Finally he adds a comment character to kill + the rest of the SQL string to avoid syntax errors. Single quote is the most + common character to reveal openings for SQL injection, but if you have + dynamic table and column names, there are more options an attacker could + succeed with. + Take this dreadful version of general_select:

+
CREATE PROCEDURE general_select2 @tblname nvarchar(127),
+                                 @key     varchar(10) AS
+EXEC('SELECT col1, col2, col3
+      FROM ' + @tblname + '
+      WHERE keycol = ''' + @key + '''')
+

and assume that @tblname comes from a URL. There are quite some options that + an attacker could use to take benefit of this hole.

+

And don't overlook numeric values: they can very well be used for SQL + injection. Of course, in a T-SQL procedure where the value is passed as an + int parameter there is no risk, but if a supposedly numeric value is directly + interpolated into an SQL string in client code, there is a huge potential for + SQL injection.

+

Keep in mind that user input comes from more places than just input fields on + a form. The most commonly used area for injection attacks on the Internet is + probably parameters in URLs and cookies. Thus, be very careful how you handle + anything that comes into your application from the outside.

+

You may think that it takes not only skill, but also luck for someone to find + and exploit a hole for SQL injection. But remember that there are too many hackers out there + with too much time on their hands. SQL injection is a serious security issue, and you + must take precautions to protect your applications against it.

+

One approach I seen mentioned from time to time, is to validate input data in some way, but in my opinion that is not +the right way to go. Here are are the three steadfast + principles you need to follow:

+ +

The first point is mainly a safeguard, so that if there is a injection hole, + the intruder will not be able to do that much harm. The second point makes + the task for the attacker more difficult as he cannot get feedback from his + attempts.

+

But it is the third point that is the + actual protection, and that we will look a little closer at. The procedure search_orders above should be coded as:

+
CREATE PROCEDURE search_orders @custid   nchar(5) = NULL,
+                               @shipname nvarchar(40) = NULL AS
+DECLARE @sql nvarchar(4000)
+SELECT @sql = ' SELECT OrderID, OrderDate, CustomerID, ShipName ' +
+              ' FROM dbo.Orders WHERE 1 = 1 '
+IF @custid IS NOT NULL
+   SELECT @sql = @sql + ' AND CustomerID LIKE @custid '
+IF @shipname IS NOT NULL
+   SELECT @sql = @sql + ' AND ShipName LIKE @shipname '
+EXEC sp_executesql @sql, N'@custid nchar(5), @shipname nvarchar(40)',
+                   @custid, @shipname
+

Since the SQL string does not include any user input, there is + no opening for SQL + injection. It's as simple as that. By the way, note that since we can include + parameters in the parameter list, even if they don't actually appear in the + SQL string, we don't need any complicated logic to build the parameter list, + but can keep it static. In the same vein, we can always pass all input + parameters to the SQL string.

+

As you may recall, you cannot pass everything as parameters to dynamic SQL, + for instance table and column names. In this case you must enclose all such + object names in quotename(), that I will return to in the section + Good Coding Practices and Tips for Dynamic SQL.

+

The example above was for dynamic SQL in a T-SQL stored procedure. The same advice + applies to SQL generated in client code or in a CLR stored procedure. Since + this is so important, here is an example of coding the above in VB6 and ADO:

+
Set cmd = CreateObject("ADODB.Command")
+Set cmd.ActiveConnection = cnn
+
+cmd.CommandType = adCmdText
+cmd.CommandText = " SELECT OrderID, OrderDate, CustomerID, ShipName " & _
+                  " FROM dbo.Orders WHERE 1 = 1 "
+If custid <> "" Then
+   cmd.CommandText = cmd.CommandText & " AND CustomerID LIKE ? "
+   cmd.Parameters.Append
+      cmd.CreateParameter("@custid", adWChar, adParamInput, 5, custid)
+End If
+
+If shipname <> "" Then
+   cmd.CommandText = cmd.CommandText & " AND ShipName LIKE ? "
+   cmd.Parameters.Append cmd.CreateParameter("@shipname", _
+                         adVarWChar, adParamInput, 40, shipname)
+End If
+
+Set rs = cmd.Execute
+

Since the main focus of this text is dynamic SQL in T-SQL procedures, I will + explain this example only briefly. In ADO you use ? as a parameter + marker, and you can only pass parameters that + actually appear in the SQL string. (If you + specify too many parameters, you will get a completely incomprehensible error + message.) If you use the SQL Profiler to see what ADO + sends to SQL Server, you will find that it invokes sp_executesql.

+

Protection against SQL injection is not the only advantage of using + parameterised queries. In the section Caching Query + Plans, we will look more in detail on parameterised queries and at a + second very important reason to use them. This section also includes an example of composing and sending a parameterised SQL statement for SqlClient + in VB .Net.

+

You may think that an even better protection against SQL injection is to use + stored procedures with static SQL only. Yes, this is true, + but! It + depends on how you call your stored procedures from the client. If you + compose an EXEC command into which you interpolate the input values, you are + back on square one and you are as open to SQL injection as ever. + In ADO, you need to call + your procedure with the command type adCmdStoredProc and use .CreateParameter to specify the parameters. By specifying adCmdStoredProc, you call the stored procedure through RPC, + Remote Procedure Call, which not only protects you against SQL + injection, but it is also more efficient. Similar measures apply to other client APIs; + all APIs I know of supply a way to call a stored procedure through RPC.

+

Dynamic SQL and Stored Procedures

+

In the introduction, I presented various strategies for + data-access for an application, and I said that in many shops all data access + is through stored procedures. In this section, I will look a little closer at + the advantages with using stored procedures over sending SQL statements from + the client. I will also look at what happens when you use dynamic SQL in a + stored procedure, and show that you lose some of the advantages with stored + procedures, whereas other are unaffected.

+

The Permission System

+

Historically, using stored procedures has been the way to give users + access to data. In a locked-down database, users do not have permissions to + access tables directly. Instead, the application performs all + access through stored procedures that retrieve and update data in a + controlled way, so that users only get to see data they have access to, and + they cannot perform updates that violate business rules. This works as long as the + procedure and the tables have the same owner, typically dbo (the + database owner), through a mechanism known as ownership chaining.

+

As I have already mentioned, ownership chaining does not work when you + use dynamic SQL. The reason for this is very simple: the block of + dynamic SQL is not a procedure and does not have any owner. + Thus the chain + is broken.

+

SQL 2005 and later

+

In SQL2005 and later versions of SQL Server, this can be addressed by signing a procedure that uses dynamic + SQL with a certificate. You associate the certificate with a user, and grant + that user (which is a user that cannot log in) the rights needed for the + dynamic SQL to execute successfully. A second method is to use + the EXECUTE AS clause to impersonate a user that has been granted the + necessary permissions. This method is easier to use, but has side effects + that can have unacceptable consequences for auditing, row-level security + schemes and system monitoring. For this reason, my strong recommendation is + to use certificates.

+

Describing these methods more closely, would take up too much space here. + Instead I've written a separate article about them, Giving Permissions through Stored + Procedures, where I discusses both certificates and impersonation in + detail, and I also take a closer look on ownership chaining.

+

If you write CLR procedures that perform data access, the same is true + for them. + Ownership chaining never applies since all data access in a CLR procedure is + through dynamic SQL. But you can use certificates or + impersonation to avoid having to give users direct permissions on the + tables.

+

SQL 2000 and earlier

+

On SQL2000 there is no way + to combine dynamic SQL with the encapsulation of permissions that you can get + through stored procedures. Any use of dynamic + SQL requires that the users have direct permissions on the accessed tables. If your security + scheme precludes giving users permissions to access tables directly, you cannot + use dynamic SQL. It is that plain and simple. Depending on the + sensitivity of the data in the application, it may be acceptable to give the + users SELECT permissions on the tables (or on some tables) to permit the use + of dynamic SQL. I strongly recommend against granting users INSERT, UPDATE + and DELETE rights on tables only to permit dynamic SQL + in some occasional procedure.

+

There are however, some ways to arrange so that users only have access to the data through the application. All and +all, there are three alternatives, application roles, "application + proxies" and Terminal Server. All require you to change the application architecture or infrastructure, so it + is nothing you introduce at whim.

+

Application roles were introduced in SQL7. Users log into SQL Server but have no permissions on their own beyond + the database access. Instead, the application activates the application role by + sending a password somehow embedded into it, and this application + role has the permissions needed. With "application proxies", the application authenticates the users outside SQL Server and logs into SQL + Server on their behalf with a proxy login. This proxy login impersonates the users in SQL Server, and + thus their permissions apply. However, since the users do not have any login on their own, they cannot + log into SQL Server outside the application. In Giving Permissions..., + I discuss these two methods a little further.

+

The final possibility is to put the application on Terminal Server. Users log into the terminal server which is set +up so that all they can do is to run this application. Furthermore, the network is configured so that they cannot access SQL Server from their regular +computers. Thus, the application is their only way to the data.

+

For all these methods, keep in mind about SQL injection, and do not grant more +permissions than needed.

+

Caching Query Plans

+

Every query you run in SQL Server requires a query plan. When you run a query + the first time, SQL Server builds a query plan for it or as the terminology + goes it compiles the query. SQL Server saves the plan in cache, and next time you run + the query, the plan is reused. The query plan stays in cache + until it's aged out because it has not been used for a while, or it is + invalidated for some reason. (Why this happens falls outside the scope of + this article.)

+

The reuse of cached query plans is very important for the performance + of queries where the compilation time is in par with the execution time or + exceeds it. If + a query needs to run for four minutes, it does not matter much if the query + is recompiled for an extra second each time. On the other hand, if the execution time of the + query is 40ms but it takes one second to compile the query, there is a + huge gain with the cached plan, particularly if the query is executed over and + over again.

+

Up to SQL6.5 the only plans there were put + into the cache were plans for stored + procedures. Loose batches of SQL were compiled each time. And since the + query plan for dynamic SQL is not part of the stored procedure, that included + dynamic SQL as well. Thus in SQL6.5, the use of dynamic SQL nullified the + benefit with stored procedures in this regard.

+

Starting with SQL7, SQL Server also caches the plans for bare statements + sent from a client or generated through dynamic SQL. Say that you send this + query from the client, or execute it with EXEC():

+
SELECT O.OrderID, SUM(OD.UnitPrice * OD.Quantity)
+FROM   Orders O
+JOIN   [Order Details] OD ON O.OrderID = OD.OrderID
+WHERE  O.OrderDate BETWEEN '19980201' AND '19980228'
+  AND  EXISTS (SELECT *
+               FROM   [Order Details] OD2
+               WHERE  O.OrderID = OD2.OrderID
+                  AND OD2.ProductID = 76)
+GROUP  BY O.OrderID
+

The query returns the total order amount for the orders in February 1998 that + contained the product Lakkalikri. SQL Server will put + the plan into the cache, + and next time you run this query, the plan will be reused. But only if it is exactly the same query. + Since the cache lookup is by a hash value computed from the query text, the cache is space- and case-sensitive. + Thus, if you add a + single space somewhere, the plan is not reused. More importantly, it is not + unlikely that next time you want to run the query for a different product, or a + different period.

+

All this changes, if you instead use sp_executesql to run your query + with parameters:

+
DECLARE @sql nvarchar(2000)
+SELECT @sql = 'SELECT O.OrderID, SUM(OD.UnitPrice * OD.Quantity)
+               FROM   dbo.Orders O
+               JOIN   dbo.[Order Details] OD ON O.OrderID = OD.OrderID
+               WHERE  O.OrderDate BETWEEN @from AND @to
+                 AND  EXISTS (SELECT *
+                              FROM   dbo.[Order Details] OD2
+                              WHERE  O.OrderID = OD2.OrderID
+                                AND  OD2.ProductID = @prodid)
+                GROUP  BY O.OrderID'
+EXEC sp_executesql @sql, N'@from datetime, @to datetime, @prodid int',
+                   '19980201', '19980228', 76
+

The principle for cache lookup is the same as for a non-parameterised query: + SQL Server hashes the query text and looks up the hash value in the cache, + still in a case- and space-sensitive fashion. But since the parameter values + are + not part of the query text, the same plan can be reused even when the input + changes.

+

To make this really efficient there is one more thing you need to observe. + Do you see that I've prefixed all tables in the query with dbo? There + is a very important reason for this. Users can have different default schema, and up to SQL2000, all users had a +default schema equal to their username. Thus, if default schema for user1 is user1, and this users runs a query that goes "SELECT ... FROM + Orders", SQL Server must first check if there is a table user1.Orders, + before it looks for dbo.Orders. Since user1.Orders could appear + on the scene at any time, user1 cannot share cache entry with a user different default schema. Yes, in SQL2005, it is perfectly possible that all users have dbo as their default schema, but it seems to be a bad idea to +rely on it.

+

If you instead use stored procedures, it is not equally important to prefix + tables with dbo. Microsoft still recommends that you do, but even if + you don't, users with different default schema can share the same query + plan.

+

From what I have said here, it follows that if you use dynamic SQL with + EXEC() you lose an important benefit of stored procedures + whereas with sp_executesql you don't. At least in + theory. It's easy to forget that dbo, and if you leave it out in just a + single place in the query, you will get as + many entries in the cache for the query as there are users running it. Recall + also that the cache is space- + and case-sensitive, so if you generate the same query in several places, you + may inadvertently have different spacing or inconsistent use of case. + And this is not restricted to the SQL statement, the parameter list is as much part of the cache entry. Furthermore, since the cache lookup is by a hash value computed from the query text, I + would assume that this is somewhat more expensive than looking up a stored + procedure. In fact, under extreme circumstances, heavy use of dynamic SQL, can lead to serious + performance degradation. Some of my MVP colleagues have observed systems with + lots of memory (>20GB) when the plan cache has been so filled with plans + for SQL statements, that there have been hash collisions galore, and the + cache lookup alone could take several seconds. Presumably, the applications in + question either did not use parameterised queries at all, or they failed to + prefix tables with dbo.

+

So far, I've only talked about dynamic SQL in stored procedures. But in this + regard there is very little difference to SQL statements sent from + the client, or SQL statements generated in CLR procedures. The same rules + apply: unparameterised statements are cached but with little probability for + reuse, whereas parameterised queries can be as efficient as stored + procedures if you remember to always prefix the tables with dbo. (And still + with the caveat that the cache lookup is space- and case-sensitive.) Most client APIs implement + parameterised queries by calling sp_executesql under the covers.

+

In the section on SQL Injection, I included an example on how to do + parameterised queries with ADO and VB6. + Here is an example with VB .Net and SqlClient:

+
cmd.CommandType = System.Data.CommandType.Text
+cmd.CommandText = _
+    " SELECT O.OrderID, SUM(OD.UnitPrice * OD.Quantity)" & _
+    " FROM   dbo.Orders O " & _
+    " JOIN   dbo.[Order Details] OD ON O.OrderID = OD.OrderID" & _
+    " WHERE  O.OrderDate BETWEEN @from AND @to" & _
+    "   AND  EXISTS (SELECT *" & _
+    "                FROM   dbo.[Order Details] OD2" & _
+    "                WHERE  O.OrderID = OD2.OrderID" & _
+    "                  AND  OD2.ProductID = @prodid)" & _
+    " GROUP  BY O.OrderID"
+
+cmd.Parameters.Add("@from", SqlDbType.Datetime)
+cmd.Parameters("@from").Value = "1998-02-01"
+
+cmd.Parameters.Add("@to", SqlDbType.Datetime)
+cmd.Parameters("@to").Value = "1998-02-28"
+
+cmd.Parameters.Add("@prodid", SqlDbType.Int)
+cmd.Parameters("@prodid").Value = 76
+

In contrast to ADO, SqlClient uses names with @ for parameters. The syntax + for defining parameters is similar to ADO, but not identical. This article is + long enough, so I will not go into details on how the Parameters + collection works. Instead, I refer you to MSDN where both SqlClient and ADO + are documented in detail. Whatever client API you are using, + please + learn how to use parameterised commands with it. Yes, there is a tone of + desperation in my voice. I don't know how many posts I've seen on the + newsgroups over the years where people build their SQL strings by + interpolating the values from input fields into the SQL string, and thereby + degrading the performance of their application, and worst of all opening + their database to SQL injection.

+

... and just when you thought you were safe, I need to turn this upside down. Recall what I said in the beginning of +this section, that if the query is going to run for four minutes, one second extra for compilation is not a big deal. +And if that recompilation slashes the execution time from forty minutes to four, there is a huge gain. Most queries +benefit from cached parameterised plans, but not all do. Say that you have a query where the user can ask for data for +some time span. If the user asks for a summary for a single day, there is a good non-clustered index that can be used +for a sub-second response time. But if the request is for the entire year, the same index would be a disaster, and a +table scan is better. Starting with SQL2005 you can force a + query to be recompiled each + time it is executed by adding OPTION (RECOMPILE) + to the end of the query, and thus you can still use sp_executesql to get the + best protection against SQL injection. On SQL2000 + and earlier, it may in fact be better to interpolate critical parameters into the + query string when you need to force recompilation each time.

+

For the sake of completeness, I should mention that SQL + Server is able to auto-parameterise queries. If you submit:

+
SELECT OrderID, OrderDate FROM dbo.Orders WHERE CustomerID = N'ALFKI'
+

SQL Server may recast this as

+
SELECT OrderID, OrderDate FROM dbo.Orders WHERE CustomerID = @P1
+

so if next time you submit BERGS instead of ALFKI, the query plan will be reused. + Auto-parameterisation comes in two flavours: simple and forced. Simple is the + default and is the only option on SQL2000 and + earlier. With simple parameterisation, auto-parameterisation happens only with very simple + queries, and, it seems, with some inconsistency. With forced + parameterisation, SQL Server parameterises all queries that comes its way + (with some exceptions documented in Books Online). Forced parameterisation + is, in my opinion, mainly a setting to cover up for poorly designed + third-party application that uses unparameterised dynamic + SQL. For your own development you should not + rely on any form of auto-parameterisation. (But in the situation you really a want a new query + plan each time, you may have to verify that it doesn't happen when you don't + want to.)

+

They say seeing is believing. Here is a demo that you can try on yourself, if + you have SQL2005. First create this database:

+
CREATE DATABASE many_sps
+go
+USE many_sps
+go
+DECLARE @sql nvarchar(4000),
+        @x   int
+SELECT @x = 200
+WHILE @x > 0
+BEGIN
+   SELECT @sql = 'CREATE PROCEDURE abc_' + ltrim(str(@x)) +
+                 '_sp @orderid int AS
+   SELECT O.OrderID, O.OrderDate, O.CustomerID, C.CompanyName,
+          Prodcnt = OD.cnt, Totalsum = OD.total
+   FROM   Northwind..Orders O
+   JOIN   Northwind..Customers C ON O.CustomerID = C.CustomerID
+   JOIN   (SELECT OrderID, cnt = COUNT(*), total = SUM(Quantity * UnitPrice)
+           FROM   Northwind..[Order Details]
+           GROUP  BY OrderID) AS OD ON OD.OrderID = O.OrderID
+   WHERE  O.OrderID = @orderid'
+   EXEC(@sql)
+   SELECT @x = @x - 1
+END
+

Then in SQL Server Management Studio 2005, press F7 + navigate down to the list of stored procedures. Select all procedures. Then + from the context menu select to script them as CREATE + TO to a new query window. How long time this takes depends on your + hardware, but on my machine it took 90 seconds and at the same time SQL + Server grabbed over 250MB of memory. If you + use the Profiler to see what Mgmt Studio is up to, you will see that for each + procedure, Mgmt Studio emits a couple of queries with the procedure name + embedded. That is, no parameterised statements. Once scripting is complete, + issue this command:

+
ALTER DATABASE many_sps SET PARAMETERIZATION FORCED
+

and redo the operation. On my machine scripting now completed in five + seconds!. This demonstrates that the difference between parameterised and + unparameterised can be dramatic. (And that Microsoft can not use their own + products properly.) If you run SQL Server on + your local machine, you can see this from one more angle, you can stop and restart + SQL Server before the two scripting operations, and then use Task Manager to + see how much physical memory SQL Server uses + in the two cases. That difference lies entirely in the plan cache.

+

This particular issue have been addressed in SQL Server Management Studio 2008. SSMS 2008 has its own scripting +issues, but they have nothing to do with the topic of this article.

+

Reducing Network Traffic

+ +

Another advantage with stored procedures over SQL sent from the client is that less bytes travel the network. Rather than sending a + 50-line query over the network, you only need to pass the name of a stored procedure + and a few parameters. This gets more significant if the computation requires + several queries, possibly with logic in between. If all logic is outside the + database, this could mean that data has to travel up to the client, only to travel back in the next moment. With stored procedures you can + use temp tables to hold intermediate results. (You can use temp tables + from outer layers as well, although it may require some careful use of your + client API.)

+

In this case, the dividing line goes between sending SQL from the client or + running stored procedures. If the stored procedures use static SQL only, or + invoke dynamic SQL does not matter, nor does it matter if it is a CLR procedure. + You still get the gains of reduced network traffic.

+

Encapsulating Logic

+ +

This is not a question of security or performance, but one of + good programming practice and modularising your code. By using stored procedures, you don't have to bog down +your client code with the construction of SQL statements. Then again, it depends + a little on what you put into those stored procedure. Myself, I am of the + school that the business logic should be where the data is, and in this case + there is no dispute that you should use stored procedures to encapsulate your + logic.

+

But there are also people + who like to see the database as a unintelligent container of data, and who + prefer to have the business logic + elsewhere. In this case, the arguments for using stored procedures + for encapsulation may not be equally compelling. You could just as well employ careful programming practices in + your client language and send SQL strings.

+

Nothing of this changes if you use dynamic SQL in your stored procedures. The + stored procedure is still a container for some piece of logic, and how it + looks on the inside does not matter. I'm here assuming that most of your + procedures use static SQL only. If all your stored procedures + generate dynamic SQL, then you are probably better off in this regard to do it all in client code. Then again, sometimes there is no other application + than Query Analyzer or SQL Server Management Studio. (Typically this would be + tasks that are run by an admin.) In this case, the only container of logic + available is stored procedures, and it's immaterial whether they use dynamic + SQL or not.

+

Keeping Track of what Is Used

+ +

In a complex system with hundreds of tables, you may need to know where a + certain table or column is referenced, because you are considering changing + or dropping it. If all access to tables is from static SQL in stored + procedures, you may be able find all references by using the system + stored procedure sp_depends or query a system table directly. (sysdepends + in SQL2000, sys.sql_dependencies in SQL2005 +and later. In SQL2008 there is also sys.sql_expression_dependencies.) I say may, because it is very difficult to maintain complete dependency + information in SQL Server. If you drop and recreate a table, all dependency + information for the table is lost. What I do myself is to regularly build an empty database + from our version-control system, and since our build tool + loads all tables before any stored procedure or trigger, I know that I can + trust the dependency information in that database.

+

If you throw dynamic SQL into the mix be that SQL sent from client, + dynamic SQL in T-SQL procedures, or SQL generated by CLR stored procedures + - you lose this opportunity. The alternative is to employ brute-force search, + and if the construction of dynamic SQL is confined to some well-defined set + of modules, this may work. If not, you may end up with a database where no + one ever dares to drop or change a column or a table, and which eventually + becomes unbearable complex and inefficient because of all the legacy baggage + it's carrying around.

+

While the main dividing line here is between static SQL and any form of + dynamic SQL, dynamic SQL in T-SQL +stored procedures is probably the least harmful, as there is less code to search. You can even search + the column sys.sql_modules.definition using SQL. Available since SQL2005. In SQL2000 you + can search syscomments, but as the procedure text there is chopped into 4000-char slices, this is less +reliable.

+

In any case, an occasional stored procedure that uses dynamic SQL is not + likely cause the Armageddon I pictured above. But it is + a good argument for being restrictive with dynamic SQL in any form.

+

Ease of Writing SQL Code

+

One distinct advantage of writing stored T-SQL procedures is that you get a + syntax check directly. With dynamic SQL, a trivial syntax error may not show up + until run time. Even if you test your code carefully, there may be some query, or + some variation of a query, that is only run in odd cases and not covered in + your test suite.

+

It has to be admitted that the strength of this argument is somewhat reduced by the fact + that T-SQL is not too industrious on reporting semantic errors. + Because of deferred name resolution, SQL Server will not examine queries in + stored procedures, where one or more tables are missing, be that misspellings + or temp tables created within the procedure. Nevertheless, SQL Server + does report sufficiently many errors, for this to be a very important reason + to use stored procedures.

+

Another side of this coin is that when you write dynamic SQL, you embed the + SQL code into strings, which makes programming far more complex. Your SQL + code is a string delimited by single quotes('), and this string + may include strings itself, and to include a single quote into the string you + need to double it. You can easily get lost in a maze of quotes if you don't + watch out. (In the section Good Coding Practices + and Tips for Dynamic SQL, we will look a little closer + on how to deal + with this problem.) The most commonly used client languages with T-SQL - + Visual Basic, C#, C++, VBScript all use the double quote (") + as their string delimiter, so dynamic SQL in client code or CLR stored + procedures is less prone to that particular problem. Then again, in VB you + don't have multi-line strings, so at the end of each line you have to have a double + quote, an ampersand and an underscore for continuation. It sure does not + serve to make coding easier. You are relieved from all this hassle, if you + use stored procedures with static SQL only.

+

Addressing Bugs and Problems

+

Somewhat surprisingly, one of the strongest arguments for stored procedures today may + be + that they permit you to quickly address bugs and performance problems in the + application.

+

Say that you generate SQL statements in your application, and that there is + an error in it. Or that it simply performs unbearably slow. To fix it, you need to + build a new executable or DLL, which is likely to contain other code that also + has changed since the module was shipped. This + means that before the fix can be put into production, the module will have to go + through QA and testing.

+

On the other hand, if the problem is in a stored procedure, and the fix is + trivial, you may be able to deploy a fix into production within an hour after + the problem was reported.

+

This difference is even more emphasised, if you are an ISV and you ship a + product that the customer is supposed administer himself. If your application + uses stored procedures, a DBA may be able to address problems directly + without opening a support case. For instance, if a procedure runs unacceptably + slow, he may be able to fix that by adding an index hint. In contrast, + with an application that generates SQL in the + client, his hands will be tied. Of course, as an ISV you may not want your + customers to poke around in your code, even less to change it. You may also prefer + to ship your procedures WITH ENCRYPTION to protect + your intellectual property, but this is best controlled + through license agreements. (If you encrypt your procedures, the DBA can still + change them, as long as he is able to find a way to decrypt them. Which any + DBA that knows how to use Google can do.)

+

In this case, it does not matter whether the stored procedure uses static SQL + only, or if it also uses dynamic SQL. For CLR procedures it depends on many objects + you have in your assemblies. If you have one assembly per object, installing a new version of a CLR procedure + is as simple as replacing a T-SQL procedure.

+

(I should add that SQL2005 offers a new feature that permits the DBA to + change the plan for a query without altering the code, by adding a plan guide. + This feature has been further enhanced in SQL2008. This is quite an advanced feature, and I refer to Books Online for details.)

+

Good Coding Practices and Tips for Dynamic SQL

+

Writing + dynamic SQL is a task that requires discipline to +avoid losing control + over your code. If you + just go ahead, your code can become very messy, and be difficult to read, troubleshoot + and maintain. In this section, we will look at how to avoid this. I will also + discuss some special cases: how you can use sp_executesql for input longer + than 4000 chars in SQL2000, and how to use dynamic SQL with cursors, and the + combination of dynamic SQL and user-defined functions.

+

Use Debug Prints!

+

When you write a stored procedure that generates dynamic SQL, you should + always include a @debug parameter:

+
CREATE PROCEDURE dynsql_sp @par1 int,
+                           ...
+                           @debug bit = 0 AS
+...
+IF @debug = 1 PRINT @sql
+

When you get a syntax error from the dynamic SQL, it can be very confusing, and + you may not even discern where it comes from. And even when you do, it can be + very difficult to spot the error only by looking at the code that constructs the SQL. + Once the SQL code is slapped in your face, the error is much more likely to be apparent to you. + So always include a @debug parameter and a PRINT!

+

Nested Strings

+

As I've already mentioned, one problem with dynamic SQL is that you often need to deal with nested + string delimiters. For instance, in the beginning of this article, I showed + you the procedure general_select2. Here it is again:

+
CREATE PROCEDURE general_select2 @tblname nvarchar(127),
+                                 @key     varchar(10) AS
+EXEC('SELECT col1, col2, col3
+      FROM ' + @tblname + '
+      WHERE keycol = ''' + @key + '''')
+

(Again, I like to emphasise that this sort of procedure is poor use of + dynamic SQL.)

+

+SQL is one of those language where the method to include a string +delimiter itself in a string literal is to double it. So those four consecutive +single quotes ('''') is a string literal with the value of a one +single quote ('). +This is a fairly simple example; it can get a lot worse. If you work with +dynamic SQL, you must learn to master nested strings. Obviously, in this case you +can easily escape the mess by using sp_executesql instead yet another reason +to use parameterised statements. However, there are situations when you need to +deal with nested quotes even with sp_executesql. For instance, earlier in this +article, I had this code:

+
N' WHERE LastUpdated BETWEEN @fromdate AND '
+N'                           coalesce(@todate, ''99991231'')'
+

We will look at some tips of dealing with nested strings later in this + section.

+

Spacing and Formatting

+

Another thing to be careful with is the spacing as you concatenate the parts + of a query. + Here is an example where it goes wrong:

+
EXEC('SELECT col1, col2, col3
+      FROM' + @tblname + '
+      WHERE keycol = ''' + @key + '''')
+

+See that there is a space missing after FROM? When you compile the stored procedure +you will get no error, but when you run it, you will be told that the columns +keycol, col1, col2, col3 are missing. And since you know that the +table you passed to the procedure has these columns you will be mighty confused. But this is +the actual code generated, assuming the parameters foo and abc:

+
SELECT col1, col2, col3
+    FROMfoo
+    WHERE keycol = 'abc'
+This is not a syntax error, because FROMfoo is a column alias to col3. +And, yes, it's legal to use a WHERE clause, even if there is no FROM clause. But +since the columns cannot exist out of the blue, you get an error for that.

+ This is also a good example why you should use debug prints. If the code + looks like this:

+
SELECT @sql =' SELECT col1, col2, col3
+               FROM' + @tblname + '
+               WHERE keycol = ''' + @key + ''''
+IF @debug = 1 PRINT @sql
+EXEC(@sql)
+

It would be much easier to find the error by running the procedure with + @debug = 1. (Obviously, had we included the dbo prefix, this error + could not occur at all.)

+

Overall, good formatting is essential when working with dynamic SQL. Try to + write the query as you would have written it in static SQL, and then add the + string delimiters outside of that. T-SQL permits you to embed newlines in + string literals (as testified by the example above), so in contrast to VB, + you don't need a string delimiter on each line. An advantage of this is that + your debug PRINT is easier to read, and in the case of a syntax error the line + number in the error message may guide you.

+

You may prefer, though, to + have a string terminator on each line. A tip in such case is to do something + like this:

+
EXEC(' SELECT col1, col2, col3 ' +
+     ' FROM ' + @tblname +
+     ' WHERE keycol = ''' + @key + '''')
+

As you see, I have a space after the opening single quote on each line to avoid syntax problems due to missing spaces.

+

Dealing with Dynamic Table and Column Names

+

Passing table and column names as parameters to a procedure with dynamic SQL + is rarely a good idea for application code. (It can make perfectly sense for + admin tasks). As I've said, you cannot pass a table or a column name as a + parameter to sp_executesql, but you must interpolate it into the SQL string. + Still you should protect it against SQL + injection, as a matter of routine. It could be that bad it comes from user + input.

+

To this end, you should use the built-in function quotename() (added in + SQL7). quotename() takes two parameters: the first is a string, and the second + is a pair of delimiters to wrap the string in. The default for the second + parameter is []. Thus, quotename('Orders') returns + [Orders]. quotename() takes care of nested delimiters, so if you have + a really crazy table name like Left]Bracket, quotename() will + return [Left]]Bracket].

+

Note that when you work with names with several components, each component + should be quoted separately. quotename('dbo.Orders') returns + [dbo.Orders], but that is a table in an unknown + schema of which the first four characters are d, b, o and + a dot. As long as you only work with the dbo schema, best practice is to + add dbo in the dynamic SQL and only pass the table name. If you work + with different schemas, pass the schema as a separate parameter. (Although + you could use the built-in function parsename() to split up a + @tblname + parameter in parts.)

+

While general_select still is a poor idea as a stored procedure, here + is nevertheless a version that summarises some good coding + virtues for dynamic SQL:

+
CREATE PROCEDURE general_select @tblname nvarchar(128),
+                                @key     varchar(10),
+                                @debug   bit = 0 AS
+DECLARE @sql nvarchar(4000)
+SET @sql = 'SELECT col1, col2, col3
+            FROM dbo.' + quotename(@tblname) + '
+            WHERE keycol = @key'
+IF @debug = 1 PRINT @sql
+EXEC sp_executesql @sql, N'@key varchar(10)', @key = @key
+ +

Quotename, Nested Strings and Quotestring

+

+The main purpose of quotename() is to quote object names, which is why the +default for the second parameter is brackets. But you can specify other +delimiters as well, including single quotes, which means that any single quote +in the input is doubled. Thus, if you for some reason prefer to use + EXEC(), you can use quotename() to protect yourself against SQL + injection by help of this function. Here is an example.

+
IF @custname IS NOT NULL
+   SELECT @sql = @sql + ' AND custname = ' + quotename(@custname, '''')
+

Say that @custname has the value D'Artagnan. This part of the dynamic SQL + becomes:

+
AND custname = 'D''Artagnan'
+

There is a limitation with quotename(): its input parameter + is nvarchar(128), so it does not handle long strings. A remedy is this user-defined function:

+
CREATE FUNCTION quotestring(@str nvarchar(1998)) RETURNS nvarchar(4000) AS
+BEGIN
+   DECLARE @ret nvarchar(4000),
+           @sq  char(1)
+   SELECT @sq = ''''
+   SELECT @ret = replace(@str, @sq, @sq + @sq)
+   RETURN(@sq + @ret + @sq)
+END
+

This version is for SQL2000. On SQL2005 and +later, replace 1998 and 4000 with MAX, + to make it work for any string length. Here is an example of using this function:

+
IF @custname IS NOT NULL
+   SELECT @sql = @sql + ' AND custname = ' + dbo.quotestring(@custname)
+

+The result is the same as above.

+

+On SQL7, you would have to implement quotestring as a stored procedure. +SQL6.5 does not have replace(), so you are a bit out of luck there.

+

+So with quotename() and quotestring(), +do we have as good protection against SQL +injection as we have with parameterised commands? Maybe. I don't know of any way to +inject SQL that slips through quotename() or quotestring(). Nevertheless, you +are interpolating user input into the SQL string, whereas with parameterised +commands, you don't.

+

+(I +should add that I got the suggestion to use quotename() or a user-defined +function from SQL Server MVP Steve Kass.)

+

QUOTED_IDENTIFIER

+

Another alternative to + escape the mess of nested quotes, is make use + of the fact that T-SQL actually has two string delimiters. To wit, if the + setting QUOTED_IDENTIFIER is OFF, you can also use double quotes(") + as a string delimiter. The default + for this setting depends on context, but the preferred setting is + ON, and it + must be ON in order to use XQuery, indexed views and indexes on computed columns. + Thus, this is not a first-rate alternative, but if you are aware of the caveats, + you can do this:

+
CREATE PROCEDURE general_select @tblname nvarchar(127),
+                                @key     key_type,
+                                @debug   bit = 0 AS
+DECLARE @sql nvarchar(4000)
+
+SET @sql = 'SET QUOTED_IDENTIFIER OFF
+            SELECT col1, col2, col3
+            FROM dbo.' + quotename(@tblname) + '
+            WHERE keycol = "' + @key + '"'
+IF @debug = 1 PRINT @sql
+EXEC(@sql)
+ +

Since there are two different quote characters, the code is much easier to + read. The single quotes are for the SQL string and the double quotes + are for + the embedded string literals.

+

All and all, this is an inferior method to both sp_executesql and quotestring(), since you are not protected against SQL injection + (what if @key includes a double quote?). But it + would be OK to do for some sysadmin task (where SQL injection is not likely + to be an issue), and it may be the best way to go on SQL6.5.

+

sp_executesql and Long SQL Strings in SQL 2000

+

There is a limitation with sp_executesql on SQL2000 + and SQL7, since you cannot use longer SQL + strings than 4000 characters. (On SQL2005 and later, + you should use nvarchar(MAX) to avoid this + problem.) If you + want to use sp_executesql when your query string exceeds this limit to make use of parameterised query plans, there is actually a + workaround. To wit, you can wrap sp_executesql in EXEC():

+
DECLARE @sql1 nvarchar(4000),
+        @sql2 nvarchar(4000),
+        @state char(2)
+SELECT @state = 'CA'
+SELECT @sql1 = N'SELECT COUNT(*)'
+SELECT @sql2 = N'FROM dbo.authors WHERE state = @state'
+EXEC('EXEC sp_executesql N''' + @sql1 + @sql2 + ''',
+                         N''@state char(2)'',
+                         @state = ''' + @state + '''')
+

This works, because the @stmt parameter to sp_executesql is ntext, so by + itself, it does not have any limitation in size.

+

You can even use output parameters by using + INSERT-EXEC, as + in this example:

+
CREATE TABLE #result (cnt int NOT NULL)
+DECLARE @sql1  nvarchar(4000),
+        @sql2  nvarchar(4000),
+        @state char(2),
+        @mycnt int
+SELECT @state = 'CA'
+SELECT @sql1 = N'SELECT @cnt = COUNT(*)'
+SELECT @sql2 = N'FROM dbo.authors WHERE state = @state'
+INSERT #result (cnt)
+   EXEC('DECLARE @cnt int
+         EXEC sp_executesql N''' + @sql1 + @sql2 + ''',
+                            N''@state char(2),
+                               @cnt   int OUTPUT'',
+                            @state = ''' + @state + ''',
+                            @cnt = @cnt OUTPUT
+         SELECT @cnt')
+SELECT @mycnt = cnt FROM #result
+

You have my understanding if you think this is too messy to be worth it.

+

Dynamic SQL in User-Defined Functions

+

This very simple: you cannot use dynamic SQL from used-defined functions + written in T-SQL. This is because you are not permitted do anything in a UDF + that could change the database state (as the UDF may be invoked as part of a + query). Since you can do anything from dynamic SQL, including updates, it is + obvious why dynamic SQL is not permitted.

+

I've seen more than one post on the newsgroups where people have + been banging their head against this. But if you want to use dynamic SQL in a + UDF, back out + and redo your design. You have hit a roadblock, and in SQL2000 there is no + way out.

+

In SQL2005 and later, you could implement your function as a CLR function. Recall that + all data access from the CLR is dynamic SQL. (You are safe-guarded, so that if + you perform an update operation from your function, you will get caught.) A + word of warning though: data access from scalar UDFs can often give performance + problems. If you say

+
SELECT ... FROM tbl WHERE dbo.MyUdf(somecol) = @value
+

and MyUdf performs data access, you have more or less created a hidden + cursor.

+

Cursors and Dynamic SQL

+

Not that cursors are something you should use very frequently, but people often +ask about using dynamic SQL with cursors, so I give an example for the sake + of completeness. You cannot say DECLARE CURSOR EXEC(); you have to put the +entire DECLARE CURSOR statement in dynamic SQL:

+
SELECT @sql = 'DECLARE my_cur INSENSITIVE CURSOR FOR ' +
+              'SELECT col1, col2, col3 FROM ' + @table
+EXEC sp_executesql @sql
+

You may be used to using the LOCAL keyword with your cursors. However, it is + important to understand that you must use a global cursor, as a local cursor + will disappear when the dynamic SQL exits. (Because, as you know by now, the + dynamic SQL is its own scope.) Once you have declared the + cursor in this way, you can use the cursor in a normal fashion. You must be + extra careful with error-handling though, so that you don't exit the + procedure without deallocating the cursor.

+

There is however a way to use locally-scoped cursors with dynamic SQL. + Anthony Faull pointed out to me that you can achieve this with cursor variables, as in this example:

+
DECLARE @my_cur CURSOR
+EXEC sp_executesql
+     N'SET @my_cur = CURSOR STATIC FOR
+       SELECT name FROM dbo.sysobjects;
+       OPEN @my_cur',
+     N'@my_cur cursor OUTPUT', @my_cur OUTPUT
+FETCH NEXT FROM @my_cur
+

+You refer to a cursor variable, just like named cursors, but there is an @ in front, +and, as you see from the example, you can pass them as a parameters. (I have to confess +I have never seen any use for cursor variables until Anthony Faull was kind to send +me this example.)

+

EXEC() at Linked Server

+

A special feature added in SQL2005 is that you can use EXEC() to run + pass-through queries on a linked server. This could be another instance of + SQL Server, but it could also be an Oracle server, an Access database, Active + directory or whatever. The SQL could be a single query or a sequence of + statements, and could it be composed dynamically or be entirely static. The syntax + is simple, as seen by this example:

+
EXEC('SELECT COUNT(*) FROM ' + @db + '.dbo.sysobjects') AT SQL2K
+

SQL2K is here a linked server that has been defined with + sp_addlinkedserver.

+

There is one thing that you can do with EXEC() at a linked server, that you + cannot do with EXEC() on a local server: you can use parameters, both for + input and output. The confuse matters, you don't use parameters with names + starting with @, instead you use question marks (?) as parameter + holders. Say that you are on an SQL2005 box, and you are dying to know how + many orders VINET had in the Northwind database. Unfortunately, SQL2005 does + not ship with Northwind, but you have a linked server set up to an instance + of SQL2000 with Northwind. You can run this:

+
DECLARE @cnt int
+EXEC('SELECT ? = COUNT(*) FROM Northwind.dbo.Orders WHERE CustomerID = ?',
+      @cnt OUTPUT, N'VINET') AT SQL2K
+SELECT @cnt
+

Note here that the parameter values must appear in the order the parameter + markers appear in the query. When passing a parameter, you can either specify a + constant value or a variable.

+

You may ask why the inconsistency with a different parameter marker from + sp_executesql? Recall that linked servers in SQL Server are always accessed + through an OLE DB provider, and OLE DB uses ? as + the parameter marker, a convention inherited from ODBC. OLE DB translates + that parameter marker as is appropriate for the data source on the other end. + (Not all RDBMS use @ for variables.)

+

As with regular EXEC(), you can specify AS USER/LOGIN to use impersonation:

+
EXEC('SELECT COUNT(*) FROM ' + @db + '.dbo.sysobjects')
+    AS USER = 'davidson' AT SQL2K
+

This begs the question: is davidson here a local user or a remote + user at SQL2K? Books Online is not very clear + about this, but I did some + quick experimenting, and found that what you are impersonating is a local user or login, + not a login on the remote server. (The login to use on the remote server can be + defined with sp_addlinkedsrvlogin.)

+

Common Cases when to (Not) Use Dynamic SQL

+

When you read the various newsgroups on SQL Server, there is almost every day + someone who asks a question that is answered with use dynamic SQL with a quick example + to illustrate, but ever so often the person answering forgets to tell +about the implications on permissions or SQL injection. On top of that, far too many +examples use EXEC() without any thought of query plans. And while many of these + questions taken by the letter have no other answer than dynamic SQL, there is + often a real business problem which has a completely different solution + without dynamic SQL and + a much better one.

+

So, in this section I will explore some situations where you could use dynamic +SQL. You will see that sometimes dynamic SQL is a + good choice, but also that in many cases that it is an outright bad idea.

+

SELECT * FROM @tablename

+

A common question is why the following does not work:

+
CREATE PROCEDURE my_proc @tablename sysname AS
+   SELECT * FROM @tablename
+ +

As we have seen, we can make this procedure work with help of dynamic SQL, but + it should also be clear that we gain none of the advantages with generating + that dynamic SQL in a stored procedure. You could just as well send the + dynamic SQL from the client. So, OK: 1) if the + SQL statement is very complex, you save some network traffic and you do encapsulation. +2) As we have seen, starting with SQL2005 there are methods to deal with + permissions. Nevertheless, this is a bad idea.

+

There seems to be several reasons why people want to parameterise the table + name. One camp + appears to be people who are new to SQL programming, but have experience + from other +languages such as C++, VB etc where parameterisation is a good thing. Parameterising +the table name to achieve generic code and to increase +maintainability seems like good programmer virtue.

+

But it is just that when it comes to database objects, the old truth does not +hold. In a proper database design, each table is unique, as it describes a + unique entity. (Or at least it should!) Of course, it is not uncommon to end + up with a dozen or more look-up tables that all have an id, a name + column and some auditing columns. But they do describe different entities, + and their semblance should be regarded as mere chance, and future + requirements may make the tables more dissimilar.

+

Furthermore, when it comes to building a query plan, each table has its set + of statistics and + presumptions that are by no means interchangeable, as far as SQL Server is + concerned. Finally, in + a complex data model, it is important to get a grip of what's being used. When you start to pass table and column names as parameters, you definitely + lose control.

+

So if you want to do the above (save the fact that SELECT * should not be + used in production code), to save some typing, you are on the wrong path. It is +much better to write ten or twenty stored procedures, even if they are similar +to each other.

+

(If your SQL statements are complex, so that there actually is a considerable + gain in maintainability to only have them in one place, despite different + tables being used, you could consider using a + pre-processor like the one in C/C++. You would still have one set of + procedures per table, but the code would be in one single include file.)

+

SELECT * FROM sales + @yymm

+

This is a variation of the previous case, where there is a suite of tables + that actually do describe the same entity. All tables have the same columns, and the name includes some partitioning + component, typically year and sometimes also month. New tables are created as + a new year/month begins.

+

In this case, writing one stored procedure per table is not really feasible. + Not the least, because the user may want to specify a date range for a search, so even + with one procedure per table you would still need a dynamic dispatcher.

+

Now, let's make this very clear: this is a flawed + table design. You should not have one sales table per month, you should + have one single sales table, and the month that appear in the table + name, should be the first column of the primary key in the united sales table. But you may be stuck with a legacy +application where you cannot easily change the table design. And, admittedly, there are situations where partitioning +makes sense. The table may be huge (say over 10 GB + in size), or you want to be able age to out old data quickly. But in such case you should do partitioning properly.

+

In the following, I will look at three approaches to deal with partitioning without using dynamic SQL.

+

Partitioned Tables

+

Partitioned tables were added in SQL2005. You can divide a table in up to 999 partition according to a partition +function. These partitions can be split up over different filegroups to spread out the load. Another important benefit +of partitioned tables is that deleting a partition is a pure meta-data operation, which means that if you want to throw +away all orders that are more than, say, 12 months old, you can do this with the wink of an eye.

+

Table partitioning is only available in Enterprise and Developer Edition, not in Standard. For this reason, I'm not +going into further details, but refer you to Books Online.

+

Views and Partitioned Views

+

If you have an old application, where you cannot easily merge the umpteen sales tables into one, because it would break +other parts of the application, a simple approach is + to define a view like this:

+
CREATE VIEW sales AS
+   SELECT year = '2006', col1, col2, ... FROM dbo.sales2006
+   UNION ALL
+   SELECT year = '2005', col1, col2, ... FROM dbo.sales2005
+   UNION ALL
+   ...
+

Instead of composing + the table name dynamically, you can now say:

+
SELECT ... FROM sales WHERE year = '2006' AND ...
+

Also, it's easy to add new tables to the view or remove old tables as the data is aged out. Unfortunately, this view is not terribly efficient, as the query will access + all tables in the view. Furthermore, the view is not updateable. But with a few more steps, you could make it into what SQL Server +knows as a partitioned view, +a feature added in SQL2000 (and available in all editions of SQL Server). A true partitioned view can be very efficient, because for + queries that include the partitioning column in the WHERE clause, SQL Server + will only access the relevant table(s). And such a view is updatable, so you + can insert data into it, and the data will end up in the right table.

+

Here is a + quick example/demo on how to properly set up a partitioned view. Assume that + as legacy of a poor design we have these three tables:

+
SELECT OrderID + 0 AS OrderID, OrderDate, CustomerID, EmployeeID
+INTO Orders96 FROM Northwind..Orders WHERE year(OrderDate) = 1996
+ALTER TABLE Orders96 ALTER COLUMN OrderID int NOT NULL
+
+SELECT OrderID + 0 AS OrderID, OrderDate, CustomerID, EmployeeID
+INTO Orders97 FROM Northwind..Orders WHERE year(OrderDate) = 1997
+ALTER TABLE Orders97 ALTER COLUMN OrderID int NOT NULL
+
+SELECT OrderID + 0 AS OrderID, OrderDate, CustomerID, EmployeeID
+INTO Orders98 FROM Northwind..Orders WHERE year(OrderDate) = 1998
+ALTER TABLE Orders98 ALTER COLUMN OrderID int NOT NULL
+go
+ALTER TABLE Orders97 ADD CONSTRAINT pk97 PRIMARY KEY (OrderID)
+ALTER TABLE Orders96 ADD CONSTRAINT pk96 PRIMARY KEY (OrderID)
+ALTER TABLE Orders98 ADD CONSTRAINT pk98 PRIMARY KEY (OrderID)
+

First step is to a add Year column to each table. These columns need a + default (so that processes that insert directly into these tables are + unaffected) and a CHECK constraint. Here is how it looks for Orders96:

+
ALTER TABLE Orders96 ADD Year char(4) NOT NULL
+   CONSTRAINT def96 DEFAULT '1996'
+   CONSTRAINT check96 CHECK (Year = '1996')
+

This column must be the first column in the primary key, so we need to drop + the current primary key and recreate it:

+
ALTER TABLE Orders96 DROP CONSTRAINT pk96
+ALTER TABLE Orders96 ADD CONSTRAINT pk96 PRIMARY KEY (Year, OrderID)
+

Again, this must be performed for all three tables. Finally, you can create + the view:

+
CREATE VIEW Orders AS
+   SELECT * FROM dbo.Orders96
+   UNION ALL
+   SELECT * FROM dbo.Orders97
+   UNION ALL
+   SELECT * FROM dbo.Orders98
+

Note: I have here use SELECT * to save some space in the article, but when you +define your real view, you should list the colunms explicitly. There is a risk that columns could come in different +order in the tables.

+

You now have a proper partitioned view that you can perform inserts and updates through. For instance you can run:

+
INSERT Orders(Year, OrderID, OrderDate, CustomerID, EmployeeID)
+   VALUES ('1997', 12000, '19970101', 'BERGS', 2)
+

And if you run a query like:

+
SELECT OrderID, OrderDate, EmployeeID
+FROM   Orders
+WHERE  Year = @year
+  AND  CustomerID = N'BERGS'
+

SQL Server will at run-time only access the OrdersNN table that maps to + @year. If you look at the query plan casually, it may seem that all three + tables are + accessed, but if you check the Filter operators you will find something + called STARTUP EXPR. This means that SQL Server determines at + run-time + whether to access the table or not. (In fact, when I tested this, I only got this result on SQL2005 and SQL2008. On +SQL2000, the start-up expression was not included for some reason I have not been able to understand.)

+

For your real-world case you may find it prohibitive to change the primary + key. In this case you could add a UNIQUE constraint with the partitioning + column + the real primary key. This will not be a proper partitioned view, + and the view will not be updatable, + but with some luck SQL Server may still apply start-up expressions, and access only one of the base tables. + At least I got it to work, when I ran a quick test. You + should verify that it works for your situation.

+

When a new table is added with a new year, the view needs to be redefined. If + this happens frequently, for instance by each month, you should probably set + up a job for this. I leave out example code, but it requires running + a cursor over sysobjects to compose a CREATE VIEW statement that you then + execute with sp_executesql or EXEC(). That would be an example of good use of + dynamic SQL.

+

This was a concentrated introduction to partitioned views. You can find the full rules for + partitioned views under the topic for CREATE VIEW in Books Online. Good + reading is also Stefan + Delmarco's detailed article + SQL + Server 2000 Partitioned Views.

+

Compatibility Views

+

If you have very many tables, there is a risk that you will hit a roadblock with a partitioned view: SQL Server only +permits 256 tables in a query. Henrik Staun Poulsen suggested an alternate solution that evades this restriction. You first create that new table, with +all the data in it. Then you drop the old tables, but replace them with views:

+
CREATE VIEW sales200612 AS
+   SELECT col1, col2, col3
+   FROM   sales
+   WHERE  yearmonth = '200612'
+

Old functions that uses dynamic SQL or whatever they do, can continue to do so. If they perform INSERT, UPDATE or +DELETE operations, you need to implement INSTEAD OF triggers to support this.

+

Obviously, this solution requires you to produce a lot of code, but you don't have to write it by hand; you can +easily write a program in the language of your choice to generate the views and triggers.

+

UPDATE tbl SET @colname = @value WHERE keycol = @keyval

+

In this case people want to update a column which they select at run time. +The above is actually legal in T-SQL, but what happens is simply that the + variable @colname +is assigned the value in @value for each affected row in the table.

+

In this case dynamic SQL would call for the user to have UPDATE permissions +on the table, something not to take lightly. So there is all reason to +avoid it. Here is a fairly simple workaround:

+
UPDATE tbl
+SET    col1 = CASE @colname WHEN 'col1' THEN @value ELSE col1 END,
+       col2 = CASE @colname WHEN 'col2' THEN @value ELSE col2 END,
+       ...
+

+If you don't know about the CASE expression, please look it up in Books Online. +It's a very powerful SQL feature.

+

Then again, one would wonder why people want to do this. Maybe it's because their +tables look like this:

+
CREATE TABLE products (prodid   prodid_type NOT NULL,
+                       prodname name_type   NOT NULL,
+                       ...
+                       sales_1  money       NULL,
+                       sales_2  money       NULL,
+                       ...
+                       sales_12 money       NULL,
+                       PRIMARY KEY (prodid))
+

+It could make more sense to move these sales_n columns to a second table:

+
CREATE TABLE product_sales (prodid prodid_type NOT NULL,
+                            month  tinyint     NOT NULL,
+                            sales  money       NOT NULL,
+                            PRIMARY KEY (prodid, month))
+

SELECT col AS @myname

+

The request here is to determine the name for a column in a result set at +run-time. My gut reaction, is that this should be handled +client-side. But if your client is a query window is Management Studio or +similar, this is kind of difficult. In any case, this is simple to do without any +dynamic SQL on SQL2005 and later:

+
DECLARE @mycolalias sysname
+SELECT @mycolalias = 'This week''s alias'
+
+CREATE TABLE #temp (a int NOT NULL,
+                    b int NOT NULL)
+
+INSERT #temp(a, b) SELECT 12, 17
+
+EXEC tempdb..sp_rename '#temp.b', @mycolalias, 'COLUMN'
+
+SELECT * FROM #temp
+

That is, you first get the data into a temp table, and then you use +sp_rename to rename the column along your needs. (You need to qualify sp_rename with tempdb to have +it to operate in that database.) You will get +an informational message Caution: Changing any part of an object name could +break scripts and stored procedures, but you may be able to live with that. +

+

This trick works on SQL2000 too, although not entirely without dynamic +SQL: +you need put the SELECT from the temp table in +EXEC():

+
EXEC('SELECT * FROM #temp')
+

This is because on SQL2000, sp_rename apparently does not trigger a recompile, +so if the the SELECT is in the same batch, the statement fails with Invalid +column name 'b'. There is yet one thing to be aware of on SQL2000: you +cannot use sp_rename in a stored procedure that is to be run by plain users, as sp_rename thinks +you need to be a member of the db_owner or db_ddladmin database roles, +even if this is only a temp table. This issue has been addressed in +SQL2005.

+

SELECT * FROM @dbname + '..tbl'

+

In this case the table is in another database which is somehow determined +dynamically. There seems to be several reasons why people want to do this, and + depending on your underlying reason, the solution is different.

+

Get Data from another Database

+

If you for some reason have your + application spread over two databases, what you absolutely not should do is + to have code that says:

+
SELECT ... FROM otherdb.dbo.tbl JOIN ...
+

This is bad, because if someone asks for a second environment on the same + server, you have a lot of code to change.

+

The best solution for this particular problem is to use synonyms, added in SQL2005:

+
CREATE SYNONYM otherdbtbl FOR otherdb.dbo.tbl
+

You can then refer to otherdb.dbo.tbl as just otherdbtbl. If + there is a need for a second set of databases, you only have to update the + synonyms, and there is no need to use dynamic SQL.

+

Yet a way to avoid dynamic SQL is to use stored procedures for all + inter-database communication. That is, if you are in db1 and need to get data from + db2, you call a stored procedure in db2. This can be dynamic, + because EXEC permits you to specify a variable that holds the name of the + procedure to execute.

+
SELECT @dbname = quotename(dbname) FROM ...
+SELECT @sp = @dbname + '..some_sp'
+EXEC @ret = @sp @par1, @par2...
+

If you want to get result sets back from db2, look at my article + How to Share Data between Stored Procedures + for suggestions.

+

There may still be cases you may find that dynamic SQL is the only feasible + situation. This can be done in two ways. The most obvious + is:

+
SELECT @dbname = quotename(dbname) FROM ...
+SELECT @sql = ' SELECT ... FROM ' + @dbname + ' .dbo.otherdbtbl ' +
+              ' JOIN dbo.localtbl ... '
+EXEC sp_executesql @sql, @params, ...
+

But, if the query is complex, and most of the tables are in the remote + database you can also do:

+
SELECT @sql = ' SELECT ... FROM dbo.othertbl ' +
+              ' JOIN ' + quotename(db_name()) + '.dbo.localtbl ... '
+SELECT @dbname = quotename(dbname) FROM ...
+SELECT @sp_executesql = @dbname + '..sp_executesql'
+EXEC @sp_executesql @sql, @params, ...
+

As above, I make use of that you can specify the procedure name dynamically + with EXEC. The trick here is that when you specify a system stored procedure + in three-part notation with the database name, the procedure executes in the + context of that database. Thus, the dynamic SQL in this example runs in + @dbname, not the current database.

+

Do Something in Every Database

+

This sounds to me like some sysadmin + venture, and for sysadmin tasks dynamic SQL is + usually a fair game, because neither caching nor permissions are issues. + Nevertheless there is an kind of alternative: sp_MSforeachdb, demonstrated by this example:

+
sp_MSforeachdb 'SELECT ''?'', COUNT(*) FROM sysobjects'
+

As you might guess, sp_MSforeachdb uses dynamic SQL internally, so + what you win is that you don't have to write the control loop yourself. I should + hasten to add that sp_MSforeachdb is not documented in Books Online, + which also means that use of it is not supported by Microsoft and it could be + changed or withdrawn from SQL Server without notice.

+

A "Master" Database

+

The scenario here is that you have a suite of databases with identical + schema. The typical reason they are different databases and not one, is that every + database serves a different customer, and each customer can access his + database (but of course no one else's). Some people + see a problem with the same stored procedures in fifty databases, + and believe that they face a maintenance nightmare. So they get the idea + that they should put the procedures in a "master" database. Yes, you can do that. It + will give you a much bigger maintenance problem, because your code will + entirely littered with dynamic SQL. + In fact, if you feel that this is the only alternative, you are better off + skipping stored procedures altogether and do all access from client code + instead. In such case there is only one place you need to specify the + database: the connection string.

+

What else can you do? Some people might suggest that you should collapse the + databases into one, and employ a strict + row-level security scheme. Personally, I would never accept such a solution + as a potential customer. In a complex application, bugs can easily lead to + that information is exposed to people who should not see it. Besides, + row-level security cannot be implemented entirely waterproof in SQL Server. + Whereas queries only would return the data they should, query plans and error + messages may indirectly disclose information to users who are not authorised + to see it.

+

Another wild approach is to use SQL Server's own master database and install the application procedures + as system procedures. I have not played with this for a long time, but I am told that it still works in SQL2008. In any case, this is entirely + unsupported. So while I mention the possibility, I don't give you the details + on how to do it and I strongly recommend that you don't go there.

+

What then is the real solution? Install the stored procedures in each database and develop + rollout routines for your SQL objects. You need this anyway, the day you want + to update the table definitions. This also permits you to have some + flexibility. Some customers may prefer to skip an upgrade. Other customers + may be prepared to pay for extra functions that only they have access to. Even more importantly, it permits you to easily scale out and move some + databases to a second server. I mentioned that as a customer, I would not + accept to share database with other customers. In fact, a security-aware + customer would not even accept to share the same instance of SQL Server, but + require his own instance.

+

(You may ask whether not synonyms could be used to implement the "master" + database. I have not been able to think of anything useful, but if you find + out something, please drop me a line.)

+

Creating an Object in Another Database

+

This question sometimes comes up. Most often people have problems with the + USE command. The correct solution is to avoid USE altogether in this case. In + fact, we have already seen how to do this:

+
SELECT @sql = 'CREATE VIEW ...'
+SELECT @sp_executesql = quotename(@dbname) + '..sp_executesql'
+EXEC @sp_executesql @sql
+

That is, make use of that you can set the database context by calling sp_executesql with three-part notation.

+

SELECT * FROM tbl WHERE col IN (@list)

+

It is fascinating how may people who put '1,2,3,4' in @list, and then are + puzzled why the query above does not return any rows. Well, if there is a row + where col has the value '1,2,3,4', you will get a match. These two + conditions are the same:

+
col IN (@list)
+col = @list
+

IN does not mean "parse whatever data there is at runtime as a + comma-separated list". It's a compile-time shortcut for + col = + @a OR col = @b OR ...

+

This is a very common question on the newsgroups, and Use dynamic SQL is a far too common answer. + Yes, you can do this with dynamic SQL, but it is an extremely poor solution. + You cannot pass the list as a parameter to sp_executesql, so you would have + to use EXEC() and be open to SQL injection. On + top of that, for long lists, IN has extremely poor performance in some + tests I did, it took SQL Server 15 seconds to build the query plan for a list + with 10000 elements.

+

The correct method is to unpack the list into a table with a user-defined + function or a stored procedure. In my article, Arrays and Lists in + SQL Server, I describe a whole range of ways to do this. I also present performance data for the various methods. (Dynamic SQL is at + the bottom of that list!) This is a long article, but there are jump-start + links in the beginning of the article, depending on which version of SQL + Server you are using.

+

SELECT * FROM tbl WHERE @condition

+

If you are considering to write the procedure

+
CREATE PROCEDURE search_sp @condition varchar(8000) AS
+   SELECT * FROM tbl WHERE @condition
+

Just forget it. If you are doing this, you have not completed the transition + to use stored procedure and you are still assembling your SQL code in the client. +But this example lapses into

+

Dynamic Search Conditions

+

A not too uncommon case is that the users should be able to select data from a broad set of +parameters. The procedure search_orders in the section on + SQL injection + is a very simple example of this.

+

Any programmer that tackles this realises that writing a static solution + with a tailor-made query for each combination of input parameters is + impossible. It most cases, it's simple to write a single static query with conditions like:

+
AND (CustomerID = @custid OR @custid IS NULL)
+

But in SQL2005 and earlier if is not possible to get good performance from such a query, but the only option for good + performance is to use dynamic SQL. This changed in SQL2008, provided that you use the RECOMPILE hint. However that is a bit complicated, because the original implementation had a serious bug, so Microsoft reverted on that change for a while. Rather than going into details here, I refer you to my article, Dynamic Search Conditions, where I + discuss this type of searches in more detail and where I present several methods, both with dynamic SQL and + static SQL. This article exists in two versions, one for + SQL2008 and later, and one for earlier versions.

+

Dynamic Crosstab

+

Another common request is to make a dynamic crosstab query, where you transform rows into columns. For instance, say +that you want to display the number of orders handled by each employee in Northwind with one column per year. This query +works well:

+
SELECT E.LastName,
+       [1996] = SUM(CASE Year(OrderDate) WHEN '1996' THEN 1 ELSE 0 END),
+       [1997] = SUM(CASE Year(OrderDate) WHEN '1997' THEN 1 ELSE 0 END),
+       [1998] = SUM(CASE Year(OrderDate) WHEN '1998' THEN 1 ELSE 0 END)
+FROM   Orders O
+JOIN   Employees E ON O.EmployeeID = E.EmployeeID
+GROUP  BY E.LastName
+

But in many situations you don't exactly which columns you will have in the data, or even how many there will be. For +instance, in this example, we may not know beforehand for which years there are orders.

+

One approach is to set an upper limit of how many output columns you support and use dummy names for the columns. +Once you have run the query, you use the technique I described in the section SELECT col AS @myname. +

+

However, in the very most cases, you will want to employ dynamic SQL for this. And there is not really any +alternative. A SELECT statement returns a table, and a table has a known number of columns with known names, so there is +no way you can write a static SELECT statement to achieve this.

+

The general technique is a two-step operation: 1) Get the unique values to pivot on. 2) with those values, generate a query like the one above. While it's a short description, it +takes some time to get everything in place. You can make a shortcut with the stored procedure +pivot_sp, something I have adapted from a procedure +originally written by SQL +Server MVP Itzik Ben-Gan. The procedure takes a number of parameters permitting you to specify the query, the rows to group +by and to pivot by, and which aggregation operation you want.

+

As this article is already long enough, I don't go into details to try to explain how it works, but leave it to you +to explore it on your own. I like to stress one thing though: The way pivot_sp is written, it is wide-open to +SQL injection, and it is very difficult, not to say impossible to make the procedure +fool-proof since it accepts query text as parameter. This is no problem as long as you use it as your own utility +procedure and have full control over the input, but you should not make a procedure like this one accessible to anyone. +Rather I recommend that you do

+
DENY EXECUTE ON pivot_sp TO public
+

To make sure that plain users cannot run it. If you make a call to pivot_sp in a stored procedure, this call +will succeed as ownership chaining applies. The file for +pivot_sp includes an example to demonstrate this.

+

Another option for dynamic crosstab is RAC, which is a third-party tool. I have never used it +myself, but I have heard several good comments about it.

+

SELECT * FROM tbl ORDER BY @col

+

This can easily be handled without dynamic SQL in this way:

+
SELECT col1, col2, col3
+FROM   dbo.tbl
+ORDER  BY CASE @col1
+               WHEN 'col1' THEN col1
+               WHEN 'col2' THEN col2
+               WHEN 'col3' THEN col3
+           END
+

Again, review the CASE expression in Books Online, if you are not acquainted +with it.

+

Note that if the columns have different data types you cannot lump them into + the same CASE expression, as the data type of a CASE + expression is always one and the same. Instead, you can do this:

+
SELECT col1, col2, col3
+FROM   dbo.tbl
+ORDER  BY CASE @col1 WHEN 'col1' THEN col1 ELSE NULL END,
+          CASE @col1 WHEN 'col2' THEN col2 ELSE NULL END,
+          CASE @col1 WHEN 'col3' THEN col3 ELSE NULL END
+

+If you also want to make it dynamic whether the order should be ascending or +descending, add one more CASE:

+
SELECT col1, col2, col3
+FROM   dbo.tbl
+ORDER  BY CASE @sortorder
+               WHEN 'ASC' THEN CASE @col1
+                                    WHEN 'col1' THEN col1
+                                    WHEN 'col2' THEN col2
+                                    WHEN 'col3' THEN col3
+                                END
+               ELSE NULL
+           END ASC,
+           CASE @sortorder
+               WHEN 'DESC' THEN CASE @col1
+                                     WHEN 'col1' THEN col1
+                                     WHEN 'col2' THEN col2
+                                     WHEN 'col3' THEN col3
+                                 END
+               ELSE NULL
+           END
+

Or use the form in the second example to deal with different data types.

+

SQL Server MVP Itzik Ben-Gan had a good article on this topic in the March +2001 issue of SQL Server Magazine, +where he offers other suggestions.

+

It should be added that these solutions has the disadvantage that they will always cause a sort which for a large +data set could be expensive. If you add an ORDER BY clause in dynamic SQL, the optimizer may avoid the sort if there is +a suitable index.

+

SELECT TOP @n FROM tbl

+

This is no longer an issue, since SQL2005 added new syntax that permits a variable:

+
SELECT TOP(@n) col1, col2 FROM tbl
+

On SQL2000, TOP does not accept variables, so you need to use dynamic SQL to use +TOP. But there is an alternative:

+
CREATE PROCEDURE get_first_n @n int AS
+SET ROWCOUNT @n
+SELECT au_id, au_lname, au_fname
+FROM   authors
+ORDER  BY au_id
+SET ROWCOUNT 0
+

It can be disputed whether SET ROWCOUNT @n is really a better solution than + running a dynamic SQL statement with TOP. A dynamic TOP is probably a + better choice, as long as you can accept the security implications. (But it's + not worth to change the permissions only for this.)

+

I guess a common reason for wanting to do this is to implement paging in web + applications. SQL Server MVP Aaron Bertrand has an article which is the + standard reference on + this topic.

+

CREATE TABLE @tbl

+

The desire here is to create a table of which the name is determined at + run-time.

+

If we just look at the arguments against using dynamic SQL in stored + procedures, few of them are really applicable here. If a stored procedure has a + static CREATE TABLE in it, the user who runs the procedure must have + permissions to create tables, so dynamic SQL + will not change anything. Plan caching obviously has nothing to do with + it. Etc.

+

Nevertheless: Why? Why would you want to do this? If you are creating tables on the fly in your + application, you have missed some fundamentals about database design. In a + relational database, the set of tables and columns are supposed to be + constant. They may change with the installation of new versions, but not during + run-time.

+

Sometimes when people are doing this, it appears that they want to construct +unique names for temporary tables. This is completely unnecessary, as this is a +built-in feature in SQL Server. If you say:

+
CREATE TABLE #nisse (a int NOT NULL)
+

then the actual name behind the scenes will be something much longer, and no +other connections will be able to see this instance of #nisse.

+

If you want to create a permanent table which is unique to a user, but you + don't want to stay connected and therefore cannot use temp tables, it may be +better to create one table that all clients can share, but where the first +column is a key which is private to the client. I discuss this method a little + more closely in my article How to + Share Data between Stored Procedures.

+

CREATE TABLE with Unknown Columns

+

Sometimes I see persons on the newsgroups that are unhappy, because they + create a temp table from dynamic SQL, and then they can't access it, because it + disappeared when the dynamic SQL exited. When told that they have to create the + table outside the dynamic SQL, they respond that they can't, because they don't + know the structure of the table until run-time.

+

One solution is to create a global temp table, one with two # in the name, + for instance ##temp. Such a table is visible to all processes (so you may have + to take precautions to make the name unique), and unless you explicitly drop it, it exists + until your process exits.

+

But the real question is: what are these guys up to? If you are + working with a relational database, and you don't know the structure of your + data until run-time, then there is something fundamentally wrong. As I have + never been able to fully understand what the underlying business requirements + are, I can't really provide any alternatives. But I would suggest that if you + need to go this road, you should seriously consider to run your SQL from a client + program. Because, all access + to that table would have to be through dynamic SQL, and composing + dynamic SQL strings is easier in languages with better string capabilities, + be that C#, VB or Perl.

+

Linked Servers

+

This is similar to parameterising the database name, + but in this case we want to access a linked server of which the name is + determined at run-time.

+

Two of the solutions for dynamic database names apply here as well:

+ +

+If you want to join a local table with a remote table on some remote server, +determined in the flux of the moment, dynamic SQL is probably the best way if +you are on SQL2000. +There exists however an alternative, although it's only usable in some +situations. You can use sp_addlinkedserver to define the linked server at +run-time, +as demonstrated by this snippet:

+
EXEC sp_addlinkedserver MYSRV, @srvproduct='Any',
+                               @provider='SQLOLEDB', @datasrc=@@SERVERNAME
+go
+CREATE PROCEDURE linksrv_demo_inner WITH RECOMPILE AS
+   SELECT * FROM MYSRV.master.dbo.sysdatabases
+go
+EXEC sp_dropserver MYSRV
+go
+CREATE PROCEDURE linksrv_demo @server sysname AS
+   IF EXISTS (SELECT * FROM master..sysservers WHERE srvname = 'MYSRV')
+      EXEC sp_dropserver MYSRV
+   EXEC sp_addlinkedserver MYSRV, @srvproduct='Any',
+                           @provider='SQLOLEDB', @datasrc=@server
+   EXEC linksrv_demo_inner
+   EXEC sp_dropserver MYSRV
+go
+EXEC linksrv_demo 'Server1'
+EXEC linksrv_demo 'Server2'
+

+There are two procedures. linksrv_demo_inner is the procedure where we +actually access the linked server. As the linked server must exist when the +procedure is created, I first create a dummy entry for MYSRV, which I subsequently +drop once the procedure has been created. (Not only must the linked server exist, it must also have the database and +tables that you access.) linksrv_demo is the outside interface which takes a +server name as a parameter, and then at run-time defines MYSRV to point to +@server.

+

+The above is only possible under certain conditions:

+ +

+As you can see in the example, I've added WITH RECOMPILE to linksrv_demo_inner. +This is a safety precaution, to prevent that a cached plan does not access a +different server. I don't think this is really necessary, as SQL Server should sense the +changed definition. In fact, you may not even have to split the code over two +procedures, but as they say, better safe than sorry.

+

OPENQUERY

+

The rowset functions OPENQUERY and OPENROWSET often calls for dynamic SQL. Their second argument + is an SQL string, and they do no accept variables. + (This is because the optimizer builds a plan for the distributed query when + the procedure is compiled.) So any single parameter you want to pass to the + SQL statement for that remote server requires you to use dynamic SQL. Since the + remote SQL string can include string literals, you + may have to deal with up to three + levels of nested quotes. If you don't watch out, you can spend a full day + looking at things like:

+
DECLARE @sql varchar(8000)
+SELECT @sql = 'SELECT * FROM OPENQUERY(MYSRV, ' +
+              '''SELECT * FROM Northwind.dbo.Orders ' +
+              'WHERE CustomerID = N''''VINET'''''')'
+PRINT @sql
+EXEC(@sql)
+

to try to find out if you might you have one ' too many or too + few.

+

Strict discipline is absolutely necessary when working with dynamic SQL for + OPENQUERY. The function quotestring() + that I showed you earlier can be of great help: +

+
DECLARE @remotesql nvarchar(4000),
+        @localsql  nvarchar(4000),
+        @state     char(2)
+
+SELECT @state = 'CA'
+SELECT @remotesql = 'SELECT * FROM pubs.dbo.authors WHERE state = ' +
+                     dbo.quotestring(@state)
+SELECT @localsql  = 'SELECT * FROM OPENQUERY(MYSRV, ' +
+                     dbo.quotestring(@remotesql) + ')'
+
+PRINT @localsql
+EXEC (@localsql)
+

The built-in function quotename() is usually not useful here, as the SQL statement easily + can exceed the limit of 129 characters for the input parameter to + quotename(). +

+

On SQL2005 and later, you can use EXEC() to run an SQL statement on a + linked + server. Since EXEC() at linked servers can take parameters, this can make + things considerably easier. Then again, you can join OPENQUERY with local + tables, so that only rows of interest are brought across the wire. This you + cannot do with EXEC().

+

Dynamic Column Widths

+

Say that you write a stored + procedure that is to present some data, and the GUI it is to be run from is + Query Analyzer or SQL Server Management Studio (presumably because it is a sysadmin procedure). To make the + output easy to digest, you want the column width to be so wide that no data + is truncated, but neither do you want any extraneous spaces. This is + something you can achieve with dynamic SQL. Typically you would use a temp table + to hold the data, in which case there are no permission issues.

+

Rather than giving an example, I refer you to the source code for the popular (but undocumented) + system procedure sp_who2. You can find the code by entering exec + master..sp_helptext sp_who2.

+

Dynamic SQL and Maintenance Tasks

+

I've written this text with a main focus on application code, because it is + mainly in application tasks, bad usage of dynamic SQL can cause serious harm + by opening for SQL injection, poor + query-plan reuse, and result in code that is + difficult to read and maintain.

+

Here, I like to briefly discuss code is for maintenance jobs, code that + runs once a + night or once a week or even less frequently. Generally, for this sort of + code, dynamic SQL is almost always a fair game. Query + plans are rarely an issue. And if the code is to be run by users with + sysadmin privileges, there are no permissions issues. The same applies to + code that does not require permissions outside the database, and is to be run + by users with db_owner privileges.

+

There are however, two points about SQL injection I like to make.

+
    +
  1. If you are a DBA that writes some stored procedure to be run by junior + operators that do not have sysadmin privilege themselves, you must of + course take precaution against SQL injection, so that they don't outsmart + you.
    2. +
  2. If you write a job that performs operations on tables in + every database, be careful to use quotename() when you build the SQL strings. + This is particularly important if there are non-sysadmin users that own + databases. A user could create a table with a name that injects an SQL command + into + your maintenance script when you run it. If you are the DBA at a hosting + company, this is a risk that you definitely should not neglect.
    3. +
+

Acknowledgements and Feedback

+

I like to thank the following persons who have provided valuable suggestions + and input for this article: SQL Server MVPs Tibor Karaszi, Keith Kratochvil, + Steve Kass, Umachandar Jaychandran, Hal Berenson and Aaron Bertrand, as well as Pankul Verma, + Anthony Faull, Henrik Staun Poulsen, Karl Jones, Jim Higgins, Marcus + Hansfeldt, Gennadi Gretchkosiy, Jeremy Lubich and Simon Hayes. I also like to thank Frank Kalis for providing the +German + translation.

+

Not the least I like to thank all you people who have pointed out typos +and spelling errors. Just keep those letters and cards coming!

+

If you have suggestions for improvements or corrections on contents, language or +formatting, please mail me at + esquel@sommarskog.se. +If you have technical questions that any knowledgeable person could answer, I encourage you to +post to any of the newsgroups microsoft.public.sqlserver.programming or comp.databases.ms-sqlserver.

+

Revision History

+

2015-04-14 A very small change, in fact the addition of a single dot that was missing in SET @sp in the section linked servers. Thanks to Jim Higgins for pointing out this error.

+

2011-06-23 Updated the text in the section on Dynamic Search Conditions to mention the RECOMPILE hint, since the bug mentioned in the entry from 2009-02-14 has been fixed.

+

2009-09-12 Gennadi Gretchkosiy pointed out using that SELECT * in a + partitioned view is not OK. If the columns come in different order in the underlying tables, you will get a mess.

+

2009-02-14 - Removed text in the section on Dynamic Search Conditions that referred +to the new behaviour of OPTION (RECOMPILE) in SQL 2008, that Microsoft is now reverting +on because of a serious +bug.

+

2008-12-06 Modified the section on dynamic crosstab to stress that pivot_sp is +open to SQL injection.

+

2008-12-02 Updated the article for SQL2008. Rewrote the section on Sales + @yymm +tables and added one more approach. Added a section on dynamic crosstab. Various other minor +changes.

+

2008-06-06 Added an example on how to deal with dynamic sort +order in the section on ORDER BY.

+

2008-03-18 Added a section on how to handle a +dynamic column alias.

+

2006-12-27 In the section Caching + Query Plans, added a note + on forced parameterisation and a demo of the performance penalty for failing + to use parameterised queries.

+

2006-07-25 Corrected syntax in example with + cursor variable after comment from Anthony Faull.

+

2006-04-23 Thoroughly reworked the article to cover SQL2005 in + full, resulting in lots of new text, lots of old text dropped, and many + sections rearranged. I'm now + more strongly favouring sp_executesql over EXEC(), and + I put more stress on SQL + injection. I also stress the importance of using parameterised statements for + query-plan reuse, and I note that prefixing with dbo is essential for + query-plan reuse. The examples of cases where (not) to use dynamic SQL have + had an overhaul as well, if not equally drastic. I'm now giving a very quick + example of partitioned views for the sales + @yymm case. The article now also + includes snippets for + parameterised commands from VB6 and VB .Net.

+

2005-04-17 Added example of EXEC + + sp_executesql with OUTPUT parameter. Added use of nvarchar(max) on + SQL2005 for quotestring and elsewhere.

+

2004-02-08 + German translation now available. Minor language corrections.

+

2003-12-02 Added example of using + cursor variable with dynamic SQL. Modified description + of first parameter to sp_executesql.

+

Back to my home page.

+ + + +
+
+ +
+
\ No newline at end of file diff --git a/Articles/Backup/To BLOB or Not To BLOB Large Object Storage in a Database or a Filesystem.pdf b/Articles/Backup/To BLOB or Not To BLOB Large Object Storage in a Database or a Filesystem.pdf new file mode 100644 index 00000000..9ff7aec8 Binary files /dev/null and b/Articles/Backup/To BLOB or Not To BLOB Large Object Storage in a Database or a Filesystem.pdf differ diff --git a/Articles/Backup/sql server on vmware best practices guide.pdf b/Articles/Backup/sql server on vmware best practices guide.pdf new file mode 100644 index 00000000..fa1604fb Binary files /dev/null and b/Articles/Backup/sql server on vmware best practices guide.pdf differ diff --git a/Articles/Dynamic Search Conditions in T-SQL.htm b/Articles/Dynamic Search Conditions in T-SQL.htm deleted file mode 100644 index 0d80cb20..00000000 --- a/Articles/Dynamic Search Conditions in T-SQL.htm +++ /dev/null @@ -1,1194 +0,0 @@ - - - - - -Dynamic Search Conditions in T-SQL - - -

Dynamic Search Conditions in T‑SQL

-

An SQL text by Erland Sommarskog, SQL Server - MVP. Most recent update 2015-11-15.

- -

Introduction

-

It is very common in information systems to have functions where the users are able to search the data by selecting - freely among many possible criterias. When you implement such a function with SQL Server there are two challenges: to produce the correct result and have good performance.

-

When it comes to the latter, there is a key theme: there is no single execution plan that is good for all possible search criterias. Rather, you want the query plan to be different depending on user input. There are two ways to achieve this. You can write a static SQL query and add the hint OPTION (RECOMPILE) which forces SQL Server to compile the query every time. Or you can use dynamic SQL to build a query string which includes only the search criterias the user specified. We will look at both these approaches in this article. They are both viable, and a good SQL programmer should have both in his toolbox since both have their strengths and weaknesses.

-

This article assumes that you are on SQL 2008 or later. A key feature of this article is OPTION (RECOMPILE), a query hint that was introduced already in SQL 2005, but which was implemented properly first in SQL 2008. And to be precise, you should be on at least Service Pack 2 of SQL 2008, or Service Pack 1 for SQL 2008 R2 to take benefit of this feature. For a full discussion of how this feature has changed forth and back, see the section The History of Forced Recompilation, which also discusses a bug with OPTION (RECOMPILE) fixed in the autumn of 2014.

-

If you are still on SQL 2005 or SQL 2000, there is an older version of this article where I cover additional techniques that are not equally interesting on SQL 2008 and later, thanks to OPTION (RECOMPILE).

-

I begin the article looking at some methods which are good for very simple cases where you only need to handle a very small set of choices and where the more general methods shoot over the target. The next chapter introduces the task in focus for the rest of the article: the requirement to implement the routine search_orders in the Northgale database which I introduce this chapter. The two main chapters of this article look at implementing this procedure with static and dynamic SQL.

-

Table of Contents

-

Introduction

-

Alternate Key Lookup

-

The Case Study: Searching Orders

-

The Northgale Database

-

Static SQL with OPTION (RECOMPILE)

-

Why Static SQL?

-

The Basic Technique

-

The Coalesce Trap

-

Handling Multi-valued Parameters

-

Choice of Sort Order

-

Optional Tables

-

Alternate Tables

-

When OPTION (RECOMPILE) Hurts You

-

The History of Forced Recompilation

-

Dynamic SQL

-

Why Dynamic SQL?

-

The Ways to Do Dynamic SQL

-

Permissions

-

Implementing search_orders with a Parameterised Query

-

Compilation and Caching

-

Special Search Conditions

-

Using the CLR

-

An Example with Unparameterised SQL

-

When Caching Is Not What You Want

-

Conclusion

-

Feedback and Acknowledgements

-

Revision History

-
- -

Alternate Key Lookup

- -

Using IF statements

-

Problems with dynamic search conditions come in several flavours. In the general case, there is a search form where the user can select between many search conditions, and this is also the main focus of this article. But -sometimes you encounter problems with a small number of conditions that are more or less mutually exclusive. A typical example would be a form where a user can look up a customer by entering one of: 1) The name of the customer. 2) The customer number. 3) The customer's national registration number. (That is, what is called SSN, -personnummer etc. depending on where you are.) There are indexes on all three columns.

-

None of the solutions in the main body in the article are not really suitable here. Forcing a recompile every time with OPTION (RECOMPILE) can add too much load to the system, particularly if these lookups are frequent. And dynamic SQL is just too much hassle for a simple problem like this one.

-

So let us look at more lightweight solutions that fit this problem. A very simple-minded way is to use IF:

-
IF @custno IS NOT NULL
-   SELECT ... FROM customers WHERE custno = @custno
-ELSE IF @natregno IS NOT NULL
-   SELECT ... FROM customers WHERE natregno = @natregno
-ELSE IF @custname IS NOT NULL
-   SELECT TOP 200 ...
-   FROM   customers
-   WHERE  custname LIKE @custname + '%'
-   ORDER  BY custname
-ELSE
-   RAISERROR('No search condition given!', 16, 1)
-

(The TOP 200 for the search on customer name limits the output in case the user would enter a very short search string, so that we don't return tens of thousands of customers.)

-

If you need to return data from other tables as well, and you don't want to repeat the join, you could enter all matching customer numbers into a table variable or a temp table, and then do your final join:

-
IF @custno IS NOT NULL
-   INSERT @cust (custno) VALUES (@custno)
-ELSE IF @natregno IS NOT NULL
-   INSERT @cust (custno) SELECT custno FROM customers WHERE natregno = @natregno
-ELSE IF @custname IS NOT NULL
-   INSERT @cust (custno)
-      SELECT TOP (200) custno
-      FROM   customers
-      WHERE  custname LIKE @custname + '%'
-      ORDER  BY custname
-ELSE
-   RAISERROR('No search condition given!', 16, 1)
-
-SELECT ...
-FROM   @cust c
-JOIN   customers cst ON cst.custno = c.custno
-JOIN   ...
-

There is however a potential performance problem here. No matter which choice the user makes, we want the optimizer to use the index on the chosen search column. But the way SQL Server builds query plans, this may not always happen. When the procedure is invoked and there is no plan in the cache, SQL Server builds the plan for the entire stored procedure and "sniffs" the current input values for the parameters. Say that the first user to make the search enters a customer number. This means that the branches for national registration number and customer name are optimised for NULL and under unfortunate circumstances this could lead to a plan with a table scan, which is not what you want. (For an in-depth discussion on parameter sniffing, see my article Slow in the Application – Fast in SSMS.)

-

To prevent this from happening, there are a couple of precautions you can take. One is to push the three SELECT statements down into three subprocedures, but admittedly this is a bit bulky. Another approach is to add explicit index hints, but you should always be restrictive with index hints. For instance, what if someone renames the index? That would cause the query to fail.

-

Rather, the best option is probably to use the OPTIMIZE FOR hint:

-
SELECT TOP 200 custno
-FROM   customers
-WHERE  custname LIKE @custname + '%'
-ORDER  BY custname
-OPTION (OPTIMIZE FOR (@custname = N'ZZZZZZZ'))
-

This hint causes SQL Server to build the query plan for the value you specify. Obviously you should pick a value which is selective enough.

-

Whatever strategy you choose, you should test on production-size data that you get the plans you expect. Due to the sniffing issue, your test should look something like this:

-
EXEC find_customer @custno = 123
-EXEC find_customer @natregno = '1234567890'
-EXEC find_customer @custname = 'ABC'
-EXEC sp_recompile find_customer   -- flush the plan for the procedure
-EXEC find_customer @natregno = '1234567890'
-EXEC find_customer @custno = 123
-EXEC find_customer @custname = 'ABC'
-EXEC sp_recompile find_customer
-EXEC find_customer @custname = 'ABC'
-EXEC find_customer @custno = 123
-EXEC find_customer @natregno = '1234567890'
-

That is, you should test with all three parameters as the parameter "sniffed" when the plan is built.

-

In this particular example, there is one more issue with the @custname parameter that I have ignored so far: the user could add a leading %, in which case a scan would be a better choice. If you need to support searches with a leading %, the best is to split this into two branches:

-
IF left(@custname, 1) <> '%'
-   -- query as above
-ELSE
-   -- same query, but with different value in OPTIMIZE FOR.
-

Using OR

-

If you don't like the multiple IF statements, you may be delighted to know that it is in fact perfectly possible do it all in one query as long as you can ignore leading % in @custname:

-
SELECT TOP 200 ...
-FROM   customers
-WHERE  (custno = @custno AND @custno IS NOT NULL) OR
-       (natregno = @natregno AND @natregno IS NOT NULL) OR
-       (custname LIKE @custname + '%' AND @custname IS NOT NULL)
-ORDER  BY custname
-

The WHERE clause here essentially reads:

-
custno = @custno OR natregno = @natregno OR custname LIKE @custname + '%'
-

But the added conditions with IS NOT NULL serve a purpose. With them, the chances are good that the optimizer will pick a plan that seeks all three indexes using index concatenation. However, thanks to the IS NOT NULL conditions, SQL Server will add Filter operators with a startup expression so that at run-time, only one index is accessed. (I return to startup expressions in the section Optional Tables later in this article.)

-

This strategy usually works well as long as the search terms are all in the same table and all are indexed, but rarely (if ever) if the search terms are in different tables. In any case, you should never use this strategy blindly, but always verify that you get the plan – and the performance – you intended.

-

The Case Study: Searching Orders

- -

We will now turn to a more general case with many search terms. We will work with implementing a stored procedure that - retrieves information about orders in the Northgale database, which is an inflated version of Microsoft's classic Northwind database. See later in this chapter how to install it.

-

This is the interface that we expose to - the user (well rather to a GUI or middle-layer programmer):

-
CREATE PROCEDURE search_orders
-                 @orderid     int          = NULL,
-                 @fromdate    datetime     = NULL,
-                 @todate      datetime     = NULL,
-                 @minprice    money        = NULL,
-                 @maxprice    money        = NULL,
-                 @custid      nchar(5)     = NULL,
-                 @custname    nvarchar(40) = NULL,
-                 @city        nvarchar(15) = NULL,
-                 @region      nvarchar(15) = NULL,
-                 @country     nvarchar(15) = NULL,
-                 @prodid      int          = NULL,
-                 @prodname    nvarchar(40) = NULL,
-                 @employeestr varchar(MAX) = NULL,
-                 @employeetbl intlist_tbltype READONLY AS
-
-SELECT o.OrderID, o.OrderDate, od.UnitPrice, od.Quantity,
-       c.CustomerID, c.CompanyName, c.Address, c.City, c.Region,
-       c.PostalCode, c.Country, c.Phone, p.ProductID,
-       p.ProductName, p.UnitsInStock, p.UnitsOnOrder, o.EmployeeID
-FROM   Orders o
-JOIN   [Order Details] od ON o.OrderID = od.OrderID
-JOIN   Customers c ON o.CustomerID = c.CustomerID
-JOIN   Products p ON p.ProductID = od.ProductID
-WHERE  ???
-ORDER  BY o.OrderID
-

You see in the SELECT list what information the user gets. Here is a - specification of the parameters:

- - - - - - - - - - - - - - - - - - -
ParameterFunction
@orderidRetrieve this order only.
@fromdateRetrieve orders made on @fromdate - or later.
@todateRetrieve orders made on @todate - or earlier.
@minpriceRetrieve only order details that - cost at least @minprice.
@maxpriceRetrieve only order details that - cost at most @maxprice.
@custidRetrieve only orders from this - customer.
@custnameRetrieve only orders from customers whose name starts with @custname.
@cityRetrieve only orders from customers in this city.
@regionRetrieve only orders from customers in this region.
@countryRetrieve only orders from customers in this country.
@prodidRetrieve only order details with - this product.
@prodnameRetrieve only order details with a - product starting with @prodname.
@employeestr
- @employeetbl

These two parameters serve the same purpose: return only orders for the specified employees. @employeestr is a comma-separated string with employee IDs, while @employeetbl is a table-valued parameter. See further the discussion below.

-

If the user leaves out a search condition, that search condition should not - apply to the search. Thus, a plain EXEC search_orders should - return all orders in the database. In this text I will discuss some different implementations of search_orders, - unimaginatively named search_orders_1 etc. Some - of them are included in whole in this text, others only in parts. All - are available in the dynsearch-2008 directory on my web site. (The numbering of the procedures is -quite out of order with the text due to the historic evolution of this article.)

-

The last two parameters in the parameter list serve the same purpose functionally. I have included both to illustrate two ways how to handle multi-valued parameters. When I see these questions on the forums, people almost always have a comma-separate list. This list must be cracked into a table to be usable in SQL Server, which easily can be done with a table-valued function. In my article Arrays and Lists in SQL Server 2005 you can find a whole slew of such functions.

-

My own preference is to use a table-valued parameter and I discuss this in detail in my article Arrays and Lists in SQL Server 2008. I have not included these two parameters in all search_orders procedures; they are only present when I want to illustrate a technique to handle them. Some procedures have only one of them. (In case you wonder why @employeetbl does not have a default value: Table-valued parameters can never have an explicit default value, but instead they always have the implicit default value of an empty table.)

-

The search_orders example is not overly complicated; each condition can be implemented with a - single condition using =, <=, >= or LIKE. In a real-life application you may encounter more complex requirements:

- -

In interest of keeping this article down in size, I have not included such parameters in search_orders. Nevertheless, I cover some of these points in the text that follows.

-

The Northgale Database

-

I wrote the first version of this article when SQL Server 2000 ruled the world. I worked from the Northwind database, which shipped with SQL 2000. However, since that database was so small, it was not possible for me to draw any conclusions at all about performance. For this reason, I composed the Northgale database, an inflated version of Northwind. Tables and indexes are the same, but I have exploded the data so -that instead of 830 orders, there are 344035 of them.

-

To install Northgale, you first need to create the Northwind database on your server. Download the script to install it from Microsoft's web site. (If you are on SQL 2012 or later, beware that the script will fail if you have a surrogate-aware collation. Change the CREATE DATABASE statement to force a different collation, if this occurs to you.) Once you have Northwind in place, run Northgale.sql. - To install Northgale, you need 4.6 GB of -disk space. When the install has completed you can reclaim 4 GB by removing the log file Northgale_log2. (The script attempts to do this, but it always seems to fail. Rerunning the last statement in the script a little later seems to work.) By default, the - database is installed in the same directory as the master database, -but you can edit the script to change that. (There is no issue with surrogate collations for the Northgale script.)

-

The script for Northgale works by cross-joining the tables in Northwind and for important entities like IDs and names I have created new ones by combining the existing ids and the same goes for some of the names. I have reused the existing cities, countries and regions together with some extras that I needed for this article, so these columns do not have very good selectivity.

-

Northgale includes the table type intlist_tbltype used for the @employeetbl parameter as well as the table-valued function intlist_to_tbl to crack @employeestr into a table.

-

Keep in mind that Northgale still is a small database. It easily fits entirely into memory on a laptop with 4 GB of RAM. A - poorly written query that requires a scan of, say, the Orders table, - still returns within a few seconds. It's hopefully big enough to give a sense - for how good or bad different solutions are, but I would advise you to not - draw any far-reaching conclusions. It is also worth pointing out that the way -the database was composed, the distribution of data is a bit skewed.

-

Static SQL with OPTION (RECOMPILE)

-

Why Static SQL?

-

Solutions for dynamic search conditions in static SQL almost always include the query hint OPTION (RECOMPILE), although there are a few simple cases where the hint is not needed, and we saw an example of this in the introducing chapter Alternate Key Lookup.

-

The advantages with these solutions are:

- -

But there are also disadvantages:

- -

In the following I will elaborate these points in more detail.

-

Note that this section assumes that OPTION (RECOMPILE) works like it does in SQL 2008 SP2, SQL 2008 R2 SP1 and later versions. See the section The History of Forced Recompilation for more details how the hint worked in older versions.

-

The Basic Technique

-

The basic technique for static SQL with OPTION (RECOMPILE) is illustrated by -search_orders_3, which I initially show in a simplified form without the parameters @employeestr and @employeetbl.

-
CREATE PROCEDURE search_orders_3
-                 @orderid   int          = NULL,
-                 @fromdate  datetime     = NULL,
-                 @todate    datetime     = NULL,
-                 @minprice  money        = NULL,
-                 @maxprice  money        = NULL,
-                 @custid    nchar(5)     = NULL,
-                 @custname  nvarchar(40) = NULL,
-                 @city      nvarchar(15) = NULL,
-                 @region    nvarchar(15) = NULL,
-                 @country   nvarchar(15) = NULL,
-                 @prodid    int          = NULL,
-                 @prodname  nvarchar(40) = NULL AS
-
-SELECT o.OrderID, o.OrderDate, od.UnitPrice, od.Quantity,
-       c.CustomerID, c.CompanyName, c.Address, c.City, c.Region,
-       c.PostalCode, c.Country, c.Phone, p.ProductID,
-       p.ProductName, p.UnitsInStock, p.UnitsOnOrder
-FROM   Orders o
-JOIN   [Order Details] od ON o.OrderID = od.OrderID
-JOIN   Customers c ON o.CustomerID = c.CustomerID
-JOIN   Products p ON p.ProductID = od.ProductID
-WHERE  (o.OrderID = @orderid OR @orderid IS NULL)
-  AND  (o.OrderDate >= @fromdate OR @fromdate IS NULL)
-  AND  (o.OrderDate <= @todate OR @todate IS NULL)
-  AND  (od.UnitPrice >= @minprice OR @minprice IS NULL)
-  AND  (od.UnitPrice <= @maxprice OR @maxprice IS NULL)
-  AND  (o.CustomerID = @custid OR @custid IS NULL)
-  AND  (c.CompanyName LIKE @custname + '%' OR @custname IS NULL)
-  AND  (c.City = @city OR @city IS NULL)
-  AND  (c.Region = @region OR @region IS NULL)
-  AND  (c.Country = @country OR @country IS NULL)
-  AND  (od.ProductID = @prodid OR @prodid IS NULL)
-  AND  (p.ProductName LIKE @prodname + '%' OR @prodname IS NULL)
-ORDER  BY o.OrderID
-OPTION (RECOMPILE)
- -

The effect of all the @x IS NULL clauses is that if an input - parameter is NULL, then the corresponding AND-condition is always true. Thus, the only - conditions that are in effect are those where the search parameter has a - non-NULL value. Sounds simple enough, but there is a very big difference in performance with or without that last line present:

-
OPTION (RECOMPILE)
-

The hint instructs SQL Server to recompile the query every time. Without this hint, SQL Server produces a plan that will be cached and reused. This has a very important implication: the plan must work with all possible input values of the parameters. Due to parameter sniffing, the plan may be optimised for the parameter combination for the first search. That plan is likely to perform poorly with entirely different parameters, while it still would not be perfect for the initial parameter combination. For optimal response times when the user provides a single order ID, we want the optimizer to use the indexes on OrderID in Orders and Order Details and ignore everything else. But if the user performs a search on a product ID or a product name, we want to use the index on ProductID in Order Details and so on for other search criterias.

-

And this is exactly what we achieve with the hint OPTION (RECOMPILE). Since SQL Server is instructed to recompile the query every time, there is no need to cache the plan, why SQL Server can handle all the variables as constants. Thus, if the procedure is called like this:

-
EXEC search_orders_3 @orderid = 11000
-

SQL Server will in essence optimise this WHERE clause:

-
WHERE  (o.OrderID = 11000 OR 11000 IS NULL)
-  AND  (o.OrderDate >= NULL OR NULL IS NULL)
-  AND  (o.OrderDate <= NULL OR NULL IS NULL)
-  AND  (od.UnitPrice >= NULL OR NULL IS NULL)
-  AND  (od.UnitPrice <= NULL OR NULL IS NULL)
-  AND  (o.CustomerID = NULL OR NULL IS NULL)
-  ...
-

SQL Server is smart enough to remove all these NULL IS NULL from the query, so in essence it works with this WHERE clause:

-
WHERE o.OrderID = 11000
-

The choice of using the indexes on OrderID to drive the query becomes a no-brainer. And if you take this call:

-
EXEC search_orders_3 @custid = 'ALFKI'
-

The effective WHERE clause becomes:

-
WHERE  (o.OrderID = NULL OR NULL IS NULL)
-  AND  (o.OrderDate >= NULL OR NULL IS NULL)
-  AND  (o.OrderDate <= NULL OR NULL IS NULL)
-  AND  (od.UnitPrice >= NULL OR NULL IS NULL)
-  AND  (od.UnitPrice <= NULL OR NULL IS NULL)
-  AND  (o.CustomerID = N'ALFKI' OR N'ALFKI' IS NULL)
-  ...
-

The optimizer decides that the index on CustomerID is good.

-

Some more test cases that you can try and look at the query plan:

-
EXEC search_orders_3 @prodid  = 76
-EXEC search_orders_3 @prodid  = 76, @custid = 'RATTC'
-EXEC search_orders_3 @fromdate = '19980205', @todate = '19980209'
-EXEC search_orders_3 @city = N'Bräcke', @prodid = 76
-

These two calls are particularly interesting:

-
EXEC search_orders_3 @custid = 'ERNTC',
-                     @fromdate = '19980218', @todate = '19980218'
-EXEC search_orders_3 @custid = 'BOLSR',
-                     @fromdate = '19960101', @todate = '19961231'
-

The two calls have the same set of parameters, but yet they produce different query plans. The first call searches for a single day for a customer with many orders. The second call searches a full year for a customer with a single order.

-

To better understand the benefit of OPTION (RECOMPILE), you can play with search_orders_3b, which is identical to search_orders_3, except that it does not have the query hint. Run the examples above with search_orders_3b and compare with the query plans for search_orders_3. Here is an exercise that is particularly illuminating: First run

-
EXEC sp_recompile search_orders_3b
-

to make sure that there is no plan in the cache for the procedure. Now run search_orders_3b first with @orderid = 11000 and then with @prodid = 76. You will notice that the latter is search is a tad slow. Flush the query plan with sp_recompile again and run these two searches in reverse order. That is, first run with @prodid = 76, and then with @orderid = 11000. You may find that it takes 20 seconds to retrieve that single order. This happens because the plan was optimised for a search on product ID and that plan did not work well with a search on order ID – but it did produce the correct result eventually.

-

The Coalesce Trap

-

Rather than using OR like above, - some people write one of:

-
o.orderID = coalesce(@orderid, o.OrderID)
-o.orderID = isnull(@orderid, o.OrderID)
-

coalesce() is a function that takes a list of values as argument, and returns the - first non-NULL value in the list, or NULL if there is no non-NULL value in the - list. Thus, if @orderid is NULL, you get o.OrderID = o.OrderID, - a complete no-op – or so it may seem. - You can see a full example of this in search_orders_3a.

-

This yields code that is even more compact than using OR, but I strongly recommend that you stay away from this method, because there is a trap. Run this:

-
EXEC search_orders_3 @orderid = 10654
-EXEC search_orders_3a @orderid = 10654
-

The first call return nine rows, but the last returns no rows at all! - Why? The reason is that for the customer on this order, the column Region is NULL. When @region is NULL, the - condition

-
c.Region = coalesce(@region, c.Region)
-

becomes in essence NULL = NULL. But in SQL, NULL is not equal to NULL. NULL stands for "unknown value", and any comparison with NULL yields neither true nor false in the three-valued logic of SQL, but unknown. Whence, no rows are returned.

-

To avoid this trap, some people write things like:

-
coalesce(c.Region, '') = coalesce(@region, c.Region, '')
-

This is not only more kludgy, but since the column is entangled into an expression, this may preclude the use of any index on the column.

-

Another "workaround" is to write this particular condition as (c.Region = @region OR @region IS NULL) like in the original search_orders_3. But that begs the question why you should use the construct with coalesce or isnull at all, when it only works under some conditions. Thus, the simple advice is: stay away from this trap entirely.

-

Handling Multi-valued Parameters

-

Let's now look at how the parameters @employeestr and @employeetbl are handled in search_orders_3. Here are the last two conditions in the WHERE clause:

-
AND  (o.EmployeeID IN (SELECT number FROM intlist_to_tbl(@employeestr)) OR
-      @employeestr IS NULL)
-AND  (o.EmployeeID IN (SELECT val FROM @employeetbl) OR @hasemptbl = 0)
-

intlist_to_tbl is a function that cracks a comma-separated list into table. This function is included in the Northgale database. @hasemptbl is a local variable which is defined first in the procedure:

-
 DECLARE @hasemptbl bit = CASE WHEN EXISTS (SELECT * FROM @employeetbl)
-                               THEN 1
-                               ELSE 0
-                          END
-

This help variable is needed for the optimizer to understand that it can ignore @employeetbl when there are no rows in it. This does not work if the EXISTS test is in the main query itself.

-

Here are some test cases:

-
EXEC search_orders_3 @employeestr = '402,109,207', @custid = 'PERTH'
-
-DECLARE @tbl intlist_tbltype 
-INSERT @tbl (val) VALUES(402), (109), (207)
-EXEC search_orders_3 @employeetbl = @tbl, @custid = 'PERTH'
-

Both should return 53 orders.

-

While this works, there is a difference with regards to simple scalar parameters. For the latter, the optimizer knows the exact parameter values and builds the plan accordingly. As we saw in the example with @custid and a date interval, different parameter values can yield different plans. But this cannot happen with the multi-valued parameters in search_orders_3. All the optimizer knows about @employeetbl is the number of rows in the table variable. For @employeestr, it does not even know that. As long as the distribution of the values in the search column is fairly even, this may not be much of an issue. But if there are skews, it certainly matters.

-

One way to deal with this is to insert the values in a temp table. A temp table has distribution statistics which gives the optimizer more information. But if there are just a small number of values, you may have to force statistics update yourself, as auto-stats for a temp table happens first when six rows have been inserted/modified.

-

A more elaborate method is illustrated in the procedure search_orders_3c. The idea is that most of the time the users only want to search for two or three values at a time. Therefore, if there are up to four elements in the list, the procedure uses an IN expression, else it uses use a table variable. The procedure has this initial code:

-
DECLARE @rowc   int,
-        @emp1   int,
-        @emp2   int, 
-        @emp3   int,
-        @emp4   int,
-        @hasemptbl bit = 0
-
-IF @employeestr IS NOT NULL
-BEGIN
-   INSERT @employeetbl (rowno, employeeid)
-      SELECT row_number() OVER(ORDER BY (SELECT 1)), number
-      FROM   intlist_to_tbl(@employeestr)
-   SELECT @rowc = @@rowcount
-
-   IF @rowc BETWEEN 1 AND 4
-   BEGIN
-      SELECT @emp1 = employeeid FROM @employeetbl WHERE rowno = 1
-      SELECT @emp2 = employeeid FROM @employeetbl WHERE rowno = 2
-      SELECT @emp3 = employeeid FROM @employeetbl WHERE rowno = 3
-      SELECT @emp4 = employeeid FROM @employeetbl WHERE rowno = 4
-   END
-   ELSE IF @rowc > 4
-      SELECT @hasemptbl = 1
-END
-

(For simplicity, search_orders_3c only has the parameter @employeestr, and @employeetbl resurfaces as a local work table.) If @employeestr has a value, we unpack the list into a table variable and we number the rows. If there are four values or less, we populate the variables @emp1 to @emp4. The last two conditions in the WHERE clause look like this:

-
AND  (o.EmployeeID IN (@emp1, @emp2, @emp3, @emp4) OR @emp1 IS NULL)
-AND  (o.EmployeeID IN (SELECT employeeid FROM @employeetbl) OR @hasemptbl = 0)
-

That is, the first condition applies if @emp1 has a value, which it has if the list had one to four values. The second condition only applies if @hasemptbl is 1, which happens if there are five or more values in the list.

-

You can compare the query plans for these three cases:

-
DECLARE @empl intlist_tbltype
-INSERT @empl(val) VALUES(805) --, (304)
-EXEC search_orders_3 @employeetbl = @empl
-EXEC search_orders_3 @employeestr = '805', -- '805,304'
-EXEC search_orders_3c @employeestr = '805', -- '805,304'
-

When I tested this on SQL 2012 with only EmployeeID 805 (the employee with the smallest number of orders), the first two calls resulted in a parallel plan which did not use the index on EmployeeID, whereas the last call produced a serial plan that used this index. Interesting enough on SQL 2014, where the new Cardinality Estimator comes into play, the first call produced a serial plan fairly similar to the plan for the third call. When I added 304 (the employee with the most number of orders) to the selection, the first call retained the same plan, whereas the call to search_orders_3c got a parallel plan. That is, with the strategy in search_orders_3c, you can get a plan which is tailored to the selected values.

-

I like to point out there is nothing magic with the number 4 here. You could set the limit to from any number from one to ten. Or even higher if you feel like, but I doubt that you will see any actual benefit with that long IN list over using a temp table or a table variable.

-

Choice of Sort Order

-

If users need to be able to choose the sort order, this can also easily be handled with static SQL. The basic pattern is:

-
ORDER BY CASE @sortcol WHEN 'OrderID'      THEN o.OrderID
-                       WHEN 'EmployeeID'   THEN o.EmployeeID
-                       WHEN 'ProductID'    THEN od.ProductID
-         END,
-         CASE @sortcol WHEN 'CustomerName' THEN c.CompanyName
-                       WHEN 'ProductName'  THEN p.ProductName
-         END,
-         CASE @sortcol WHEN 'OrderDate'    THEN o.OrderDate 
-         END
-

That is, you have a parameter that holds the column to sort by (or some other identifier that maps to the column name) and then you use CASE to select that parameter. One very important thing to observe is that all branches in a CASE expression must have a similar data type. Recall that a CASE expression has a static data type, which is determined according to the rules of data-type precedence in SQL Server. That is, THEN-expressions that are of types with lower precedence will be converted to the type with the highest precedence in the CASE expression. If you mix string and numeric columns in the same CASE expression, attempts to sort on a string column, will die with a conversion error. Thus, you need to have one CASE expression for numeric columns, one for string columns, one for dates etc.

-

While this looks a little daunting, the optimizer is able to reduce this to an ORDER BY with a single column and build the plan best suited for that sorting – as long as you use OPTION (RECOMPILE) of course.

-

If you want to support both ascending and descending sorts, you will need to double everything:

-
ORDER BY CASE WHEN @isdesc = 1 THEN
-              CASE @sortcol WHEN 'OrderID'    THEN o.OrderID
-                            WHEN 'EmployeeID' THEN o.EmployeeID
-                            WHEN 'ProductID'  THEN od.ProductID
-         END DESC,
-         CASE WHEN @isdesc = 0 THEN
-              CASE @sortcol WHEN 'OrderID'    THEN o.OrderID
-                            WHEN 'EmployeeID' THEN o.EmployeeID
-                            WHEN 'ProductID'  THEN od.ProductID
-         END ASC
-

For brevity, I included only the numeric columns here, but as you see, it's starting to get a little ugly. Now, imagine that users should be able to select multiple sort columns with different data types and also ascending/descending for each column. If you would try the above strategy above, it would grow to something completely unmanageable. So while you can do user-selected sorting with static SQL, it is only practical if you only need to support a single column or if all your sort columns have the same data type. If you encounter anything beyond that, it is time to consider a solution with dynamic SQL instead. Or – this is not an option that should be overlooked – sort the data client-side.

-

Optional Tables

-

Sometimes you may have a situation that requires you to access a table only if a certain condition is given. Let's add one more parameter to our procedure: - @suppl_country. If this parameter is provided, the procedure should only - return information about products with a supplier from the given - country. You could implement this by joining to the Suppliers table, - but a suggestion that I originally got from Phillipp Sumi is that you should use an EXISTS clause - in this way:

-
@suppl_country IS NULL OR EXISTS (SELECT *
-                                  FROM   Suppliers s
-                                  WHERE  s.SupplierID = p.SupplierID
-                                    AND  s.Country    = @suppl_country)
-

To illustrate this, I wrote search_orders_9, which is the same as search_orders_3 and with the line above added (and without the parameters for search on employees). If you run -this:

-
EXEC search_orders_9 @country = 'Sweden'
-EXEC search_orders_9 @suppl_country = 'Sweden'
-

and then look at the query plans, you will see that the first plan does not include Suppliers. This should not really come as a surprise, given what you have learnt about OPTION (RECOMPILE).

-

However, there is one more revelation to make, and to this end you need to comment out OPTION (RECOMPILE) from search_orders_9 and recreate it. Run the above again preceded by the command SET STATISTICS IO ON. If you look at the query plan for the first execution, you will see that Suppliers now appears in the plan. However, when you look at the output from SET STATISTICS IO ON, you will see something like this:

-
-

Table 'Worktable'. Scan count 0, logical reads 0, physical reads 0, read-ahead reads 0.

-

Table 'Products'. Scan count 7, logical reads 238, physical reads 1, read-ahead reads 79.

-

Table 'Customers'. Scan count 7, logical reads 661, physical reads 0, read-ahead reads 218.

-

Table 'Orders'. Scan count 214, logical reads 37214, physical reads 6, read-ahead reads 352.

-

Table 'Order Details'. Scan count 7, logical reads 8996, physical reads 1, read-ahead reads 8935.

-

Table 'Workfile'. Scan count 0, logical reads 0, physical reads 0, read-ahead reads 0.

-

Table 'Worktable'. Scan count 0, logical reads 0, physical reads 0, read-ahead reads 0.

-
-

Note that Suppliers is not present in this output, whereas the output for the second execution starts off:

-

Table 'Suppliers'. Scan count 0, logical reads 11858, physical reads 0, read-ahead reads 0

-

That is, even without the RECOMPILE hint, SQL Server is able to avoid the access to Suppliers. If you look in the execution plan, you find a Filter operator above the Clustered Index Seek on Suppliers. If you hover over this Filter operator, you find that it has a Startup Expression Predicate. That is, SQL Server decides at run-time whether to access the table. This is nothing new; we saw the same thing, in the section Using OR for alternate key lookup.

-

This is something which is good to keep in mind if you encounter a situation where your only dynamic search condition is that depending on a parameter you should filter the data depending on rows (not) existing in a certain table. It may be overkill to use OPTION (RECOMPILE) if a filter with a startup expression works. I like to remind you that you should always inspect the query plan and test that performance is acceptable.

-

Note: some people with a background in languages like C++ may find this trite and think that this is just a matter of operator shortcutting. However, there is no operator shortcutting in SQL, but in SQL operands can be computed in any order, and the behaviour would be the same if the condition was written as EXISTS () OR @suppl_country IS NULL.

-

Alternate Tables

-

A scenario you may encounter is that depending on a parameter, you should read from different tables. For instance, say that there is a parameter @ishistoric. If this parameter is 1, you should read from the tables HistoricOrders and HistoricOrderDetails instead. There are no such tables in Northgale so I cannot show a full-fledged procedure. But here is how the FROM clause in search_orders_3 would be written to accomodate the situation. You replace the join between Orders and Order Details with a derived table which is a UNION ALL query of two join queries that both have a WHERE clause which includes or excludes the query depending on the variable:

-
FROM  (SELECT o.OrderID, o.OrderDate, od.UnitPrice, od.Quantity,
-              o.CustomerID, od.ProductID, o.EmployeeID
-       FROM   Orders o
-       JOIN   [Order Details] od ON o.OrderID = od.OrderID
-       WHERE  @ishistoric = 0
-       UNION  ALL
-       SELECT o.OrderID, o.OrderDate, od.UnitPrice, od.Quantity,
-              o.CustomerID, od.ProductID, o.EmployeeID
-       FROM   HistoricOrders o
-       JOIN   HistoricOrderDetails od ON o.OrderID = od.OrderID
-       WHERE  @ishistoric = 1) AS u
-JOIN   Customers c ON o.CustomerID = u.CustomerID
-JOIN   Products p ON p.ProductID = u.ProductID
-

With OPTION(RECOMPILE) only one set of order tables will be accessed at run-time. (Even without the hint, you could expect a plan with a startup expression.)

-

It is worth observing, that the query has a certain amount of repetition – the SELECT list and the join conditions. The more alternate tables there are, the case for dynamic SQL grows stronger, as with dynamic SQL you can avoid much of that repetition.

-

When OPTION (RECOMPILE) Hurts You

-

We have now seen many of the advantages with using OPTION (RECOMPILE), but before you start to use it all over town, you need to understand that too frivolous use of OPTION (RECOMPILE) can cause severe pain to your system. There is after all a reason why SQL Server in the normal case caches query plans. Without plan caching there would be many systems crumbling under the load of query compilation.

-

You need to understand how often your query will be executed. Say that there are users running search_orders once a -minute in peak activity. In this case, the extra time we spend on compilation is clearly ignorable, not the least if 50 ms of compilation can reduce execution time from five minutes to 100 ms. But assume instead that there are over 100 calls to the procedure every second. And assume furthermore, that @orderID is the only input parameter in the vast majority of these calls. Recompiling the query every time to produce the same plan all over again is a perfect waste of CPU resources.

-

One way to alleviate this situation is to introduce an IF statement so that you have:

-
IF @orderid IS NOT NULL
-BEGIN
-   SELECT ...
-   WHERE  O.OrderID = @orderid
-     AND  -- Conditions on Order Details here.
-   -- No OPTION (RECOMPILE) here!
-END
-ELSE
-BEGIN
-   SELECT ...
-   WHERE  -- same conditions as before
-   OPTION (RECOMPILE)
-END
-

By adding a separate branch for @orderid that does not have OPTION(RECOMPILE), the common requests for a single order can be served from a cached plan, whereas other conditions still result in compilation every time. Assume now that once you have this in production, you find that the load from compilation is still a tad high, and you identify that there many are requests with @custid and @fromdate, with @fromdate typically being at most a week ago.

-

This calls for one more branch without OPTION (RECOMPILE), and you can see a complete solution in - search_orders_4. However, this procedure is not likely to work out well. You may recall the discussion on parameter sniffing earlier and this strikes here. Say that the first call to search_orders_4 happens to be a search on @prodid. Now the two branches for order ID and recent orders for a customer will be optimised for a search on product ID, which will result in catastrophic performance. This can be addressed with index hints, or you can shove the SELECT without OPTION (RECOMPILE) into subprocedures, and this is what I have done in search_orders_4a.

-

But this is about as far this path can take you. If you find more common input combinations that cause too much compilation, this gets out of hand, and that's where you need to look into dynamic SQL as with dynamic SQL, you can get one cached plan for each combination of input parameters. More about that later.

-

The History of Forced Recompilation

-

The RECOMPILE option is somewhat confusing, because through the course of SQL Server, it has existed in several flavours and with different behaviour. Here is a short history.

-

For as long as I have used SQL Server, there has been an option on procedure level to force recompilation:

-
CREATE PROCEDURE search_orders ... WITH RECOMPILE AS
-

There is also a similar option on the EXEC statement:

-
EXEC some_other_proc @p1, @p2, ... WITH RECOMPILE
-

The problem with these options is that SQL Server optimises a stored procedure query by query and performs no flow analysis. Thus, even if the procedure is a single query, SQL Server cannot assume that the input parameters will have the same values when the query is executed as they have at compile time. Therefore it builds a plan which produces the correct results no matter the parameter values. Even if such a one-size-fits-all plan is optimised for the parameter values sniffed, it is not a very efficient plan. Thus, as long as we only had this option, static SQL was not a good solution for dynamic search conditions.

-

In SQL 2005, Microsoft introduced statement-level recompilation, and that included the hint OPTION (RECOMPILE). However, Microsoft had not drawn the inference that the variables in the query could be handled as constants, but the plan still was compiled to be correct with all possible values of the variables. So also in SQL 2005, static SQL was still not a good solution.

-

Microsoft addressed this flaw with the release of SQL 2008. Now variables were handled as constants when you used OPTION (RECOMPILE) and static SQL became a serious contender as a solution for dynamic search conditions. However, SQL 2008 had only been out for a few months when a serious bug was revealed: if two users were both running a query with OPTION (RECOMPILE) with different parameters in parallel, they could get each other's results. This was not exactly a simple bug to fix, so Microsoft saw no choice but to revert to the old behaviour, which happened in SQL 2008 RTM CU4.

-

But there was a customer in Bulgaria who had invested heavily in the new behaviour, and they were able to convince Microsoft that they had to fix the bug for real and restore the good behaviour of OPTION (RECOMPILE). This happened in SQL 2008 SP1 CU5.

-

When it comes to SQL 2008 R2, it was released a little too soon after SQL 2008 SP1 CU5 to include the fix. As a consequence, SQL 2008 R2 RTM shipped with the old behaviour of OPTION (RECOMPILE) and the bug fix got into SQL 2008 R2 RTM CU1.

-

Thus, there are some versions of SQL 2008 for which OPTION (RECOMPILE) does not work as touted in this article. To determine whether your server has a correct implementation of OPTION -(RECOMPILE), issue this command:

-
SELECT serverproperty('ProductVersion')
-

It should return 10.0.2746.0 (SQL 2008) or 10.50.1702.0 (SQL 2008 R2) or - higher. Note that these versions are very old by now, and preferably you should be running the latest and last service pack, which is Service Pack 4 for SQL 2008 and Service Pack 3 for SQL 2008 R2. (As SQL 2008 and SQL 2008 R2 have gone out of mainstream support, there will be no more service packs.)

-

If you are on SQL 2012 or later, OPTION (RECOMPILE) always works in the same way, so you don't have to worry. Well, almost. In the autumn of 2014, a new bug with OPTION (RECOMPILE) was uncovered. The issue is the same as with the first bug: users running the same query with different parameters can get each other's results. But whereas the first bug was very simple to repro, this bug requires quite specific circumstances to exhibit as described in KB2965069. I am not going to repeat the KB article here, but I certainly recommend that you read it and decide whether the scenario could apply to your system. If you think it does, you should certainly apply the applicable cumulative update. (Or any CU released later.) The KB article does not list SQL 2008 and SQL 2008 R2, but I would assume that this is due to that they have gone out of mainstream support. I have no information on the matter, but my assumption is that the bug is present in these two versions as well. That is, this is a bug has been there since the new behaviour was restored in SQL 2008 SP1 CU5, and it took four years before it was observed.

-

Dynamic SQL

-

Why Dynamic SQL?

-

It might as well be said directly: solutions with dynamic SQL require more from you as a programmer. Not only in skill, but foremost in discipline and understanding of what you are doing. Dynamic SQL is a wonderful tool when used correctly, but in the hands of the unexperienced it far too often leads to solutions that are flawed and hopeless to maintain.

-

That said, the main advantages with dynamic SQL are:

- -

The disadvantages with dynamic SQL are:

- -

It may seem from this list that there are more disadvantages with dynamic SQL than advantages, but if you look more closely, you see that the list is more or less complementary with the corresponding list for static SQL. Static SQL with OPTION (RECOMPILE) is good for many everyday situations, but when the requirements of what the users should be able to do become to complex, or some the searches are too frequent for recurring recompilations to be permissible, this is when you turn to dynamic SQL, fully aware of that it comes with a price.

-

The Ways to Do Dynamic SQL

-

Whereas for static SQL, there is a single basic pattern to work from, there is more than way to implement solutions for dynamic SQL. There are three different choices where to construct the SQL code:

-
    -
  1. In a T‑SQL stored procedure.
    2. -
  2. In a CLR stored procedure.
    3. -
  3. Client-side.
    4. -
-

And there are two choices for how to handle the input values from the users:

-
    -
  1. Inline them into the query string, that is, do something like ' AND col = ' + convert(varchar, @value)'.
    2. -
  2. Use parameterised queries with sp_executesql, so that the above fragment reads ' AND col = @value'.
    3. -
-

Let's start with the latter, because this is not a matter of a choice in the normal manner. You don't pick one or the other as a matter of taste, phase of the moon, roll of a dice or the whim of the day. It cannot be enough emphasised: your norm and what you should use in 99.9 % of the time is parameterised queries. But there may be an occasional parameter where inlining is required for performance reasons. Once we have looked at the basic examples, we will look at such cases, as well as a discussion of why inlining is unacceptable in the general case.

-

On the other hand, the choice of where to construct the SQL code is to a large extent a matter of preference. None of them is intrinsically better than the other. Many people use T‑SQL procedures, and I will show you two implementations of search_orders using dynamic SQL in T‑SQL, one with a parameterised query, and one with inlined parameter values. It may seem natural to use T‑SQL to build a T‑SQL query, but the process of building a query is a matter of scalar logic and string manipulation for which traditional programming languages are better tools, and I will show implementations of search_orders as a CLR stored procedure, one in C# and one in VB .NET.

-

However, once you have made the realisation that it's better to use a traditional language to build the query string, you might ask yourself why it should be a stored procedure at all, why not do it client-side altogether? You would not be wrong in asking that question. Implementing your dynamic search entirely in client code is a perfectly legit choice as long as it fits in with the general development pattern for your application. That is, if the rule for the application is that all data access should be in stored procedures, you should stick to that pattern.

-

That said, you may encounter very complex requirements for your dynamic search. Not only should users be able to select search and sort criterias, but they should also be able to select the exact set of columns to return, they should be able to aggregate the data and freely choose aggregate function (e.g. AVG, SUM) and what columns to group by. For something as ultra-dynamic like this, there is really only one reasonable choice: build the dynamic query client-side and use the full powers of object-oriented programming. If you were to do this in a stored procedure, you would need umpteen parameters to describe the conditions, and only defining the interface would take a week – and it would still be a kludge. Because that is the straight-jacket of a stored procedure, be that T‑SQL or a CLR procedure, the parameter list.

-

You may think that you could do a hybrid, and build some parts of the query client-side and send for instance the WHERE clause as a parameter to a stored procedure. But this is the one thing you should never do. Either you build the query entirely client-side, or you build it in entirely in a stored procedure. If you mix, you create a strongly coupled dependency between client and stored procedure. In all software systems, you want components to be as loosely coupled as possible. Say that the DBA makes some changes to the data model: columns are renamed or moved to different tables. If you have a stored procedure accepts values for various search conditions, you only have to change the procedure; the client can remain affected and unaware of the change. But if you start to pass WHERE clauses, column lists and whatnots, you will have to change the client as well, and you have gained little with your stored procedure. In that case it's better to have it all in the client, fully aware of that the client code has be modified if the data model is changed.

-

I will not show any client-side examples of our order search in this article, since such an implementation should probably have an object-oriented interface with methods and properties quite different from the parameter interface of search_orders. Nevertheless, in the examples that follow, there are many points that are applicable also when you work client-side.

-

Permissions

-

With stored procedures using static SQL, you don't have to bother about permissions. As long as the procedure and the tables have the same owner, it is sufficient for the users to have rights to run the stored procedure because of a feature known as ownership chaining. But ownership chaining never applies to dynamic SQL. Even if you build the query string inside a stored procedure, the string is never part of the procedure itself, but constitutes its own owner-less scope.

-

If you build the query string client-side or in a CLR stored procedure, you will have no choice but to grant the users SELECT permissions on the tables and the views that appear in the query. This also includes as any list-to-table functions you may use.

-

Depending on your application, and how it is set up, granting SELECT permissions may be entirely uncontroversial or absolutely impermissible. Thankfully, in the case you build the query string in a T‑SQL procedure, there are two alternatives to arrange for the permissions:

-
    -
  1. Create a certificate and sign the procedure with this certificate. Create a user from the certificate, and grant this user the required SELECT permissions.
    2. -
  2. Add the clause EXECUTE AS 'someuser' to the procedure. This should be a user created WITHOUT LOGIN and which has been granted the required SELECT permissions.
    3. -
-

I will not go into further details on these techniques here. Rather I refer you to my article Granting Permissions through Stored Procedures, where I discuss these techniques in detail.

-

Before you get any funny ideas, permit me to beat the dead horse of the hybrid solution a little more. You may think this sounds excellent, you could build the WHERE clause client-side and send it to a stored procedure which handles permissions problem for you. But this is again an awfully bad idea. You expose a stored procedure that accepts a WHERE clause. How do you in the stored procedure verify that this WHERE clause does not violate any security rules about what the user should see or not?

-

Implementing search_orders with a Parameterised Query

- -

After these proceedings, it's time to look at search_orders_1 which is a T‑SQL procedure that builds a parameterised SQL statement. Because of its length, I have numbered the rows in the right margin:

-
CREATE PROCEDURE search_orders_1                                   --  1
-                 @orderid     int          = NULL,                 --  2
-                 @fromdate    datetime     = NULL,                 --  3
-                 @todate      datetime     = NULL,                 --  4
-                 @minprice    money        = NULL,                 --  5
-                 @maxprice    money        = NULL,                 --  6
-                 @custid      nchar(5)     = NULL,                 --  7
-                 @custname    nvarchar(40) = NULL,                 --  8
-                 @city        nvarchar(15) = NULL,                 --  9
-                 @region      nvarchar(15) = NULL,                 -- 10
-                 @country     nvarchar(15) = NULL,                 -- 11
-                 @prodid      int          = NULL,                 -- 12
-                 @prodname    nvarchar(40) = NULL,                 -- 13
-                 @employeestr varchar(MAX) = NULL,                 -- 14
-                 @employeetbl intlist_tbltype READONLY,            -- 15
-                 @debug       bit          = 0 AS                  -- 16
-                                                                   -- 17
-DECLARE @sql        nvarchar(MAX),                                 -- 18
-        @paramlist  nvarchar(4000),                                -- 19
-        @nl         char(2) = char(13) + char(10)                  -- 20
-                                                                   -- 21
-SELECT @sql =                                                      -- 22
-    'SELECT o.OrderID, o.OrderDate, od.UnitPrice, od.Quantity,     -- 23
-            c.CustomerID, c.CompanyName, c.Address, c.City,        -- 24
-            c.Region,  c.PostalCode, c.Country, c.Phone,           -- 25
-            p.ProductID, p.ProductName, p.UnitsInStock,            -- 26
-            p.UnitsOnOrder, o.EmployeeID                           -- 27
-     FROM   dbo.Orders o                                           -- 28
-     JOIN   dbo.[Order Details] od ON o.OrderID = od.OrderID       -- 29
-     JOIN   dbo.Customers c ON o.CustomerID = c.CustomerID         -- 30
-     JOIN   dbo.Products p ON p.ProductID = od.ProductID           -- 31
-     WHERE  1 = 1' + @nl                                           -- 32
-                                                                   -- 33
-IF @orderid IS NOT NULL                                            -- 34
-   SELECT @sql += ' AND o.OrderID = @orderid' +                    -- 35
-                  ' AND od.OrderID = @orderid' + @nl               -- 36
-                                                                   -- 37
-IF @fromdate IS NOT NULL                                           -- 38
-   SELECT @sql += ' AND o.OrderDate >= @fromdate' + @nl            -- 39
-                                                                   -- 40
-IF @todate IS NOT NULL                                             -- 41
-   SELECT @sql += ' AND o.OrderDate <= @todate'  + @nl             -- 42
-                                                                   -- 43
-IF @minprice IS NOT NULL                                           -- 44
-   SELECT @sql += ' AND od.UnitPrice >= @minprice'  + @nl          -- 45
-                                                                   -- 46
-IF @maxprice IS NOT NULL                                           -- 47
-   SELECT @sql += ' AND od.UnitPrice <= @maxprice'  + @nl          -- 48
-                                                                   -- 49
-IF @custid IS NOT NULL                                             -- 50
-   SELECT @sql += ' AND o.CustomerID = @custid' +                  -- 51
-                  ' AND c.CustomerID = @custid' + @nl              -- 52
-                                                                   -- 53
-IF @custname IS NOT NULL                                           -- 54
-   SELECT @sql += ' AND c.CompanyName LIKE @custname + ''%''' + @nl -- 55
-                                                                   -- 56
-IF @city IS NOT NULL                                               -- 57
-   SELECT @sql += ' AND c.City = @city' + @nl                      -- 58
-                                                                   -- 59
-IF @region IS NOT NULL                                             -- 60
-   SELECT @sql += ' AND c.Region = @region' + @nl                  -- 61
-                                                                   -- 62
-IF @country IS NOT NULL                                            -- 63
-   SELECT @sql += ' AND c.Country = @country' + @nl                -- 64
-                                                                   -- 65
-IF @prodid IS NOT NULL                                             -- 66
-   SELECT @sql += ' AND od.ProductID = @prodid' +                  -- 67
-                  ' AND p.ProductID = @prodid' + @nl               -- 68
-                                                                   -- 69
-IF @prodname IS NOT NULL                                            --70
-   SELECT @sql += ' AND p.ProductName LIKE @prodname + ''%''' + @nl-- 71
-                                                                   -- 72
-IF @employeestr IS NOT NULL                                        -- 73
-   SELECT @sql += ' AND o.EmployeeID IN' +                         -- 74
-                  ' (SELECT number FROM dbo.intlist_to_tbl(@employeestr))' + @nl
-                                                                   -- 76
-IF EXISTS (SELECT * FROM @employeetbl)                             -- 77
-   SELECT @sql += ' AND o.EmployeeID IN (SELECT val FROM @employeetbl)' + @nl
-                                                                   -- 79
-SELECT @sql += ' ORDER BY o.OrderID' + @nl                         -- 80
-                                                                   -- 81
-IF @debug = 1                                                      -- 82
-   PRINT @sql                                                      -- 83
-                                                                   -- 84
-SELECT @paramlist = '@orderid     int,                             -- 85
-                     @fromdate    datetime,                        -- 86
-                     @todate      datetime,                        -- 87
-                     @minprice    money,                           -- 88
-                     @maxprice    money,                           -- 89
-                     @custid      nchar(5),                        -- 90
-                     @custname    nvarchar(40),                    -- 91
-                     @city        nvarchar(15),                    -- 92
-                     @region      nvarchar(15),                    -- 93
-                     @country     nvarchar(15),                    -- 94
-                     @prodid      int,                             -- 95
-                     @prodname    nvarchar(40),                    -- 96
-                     @employeestr varchar(MAX),                    -- 97
-                     @employeetbl intlist_tbltype READONLY'        -- 98
-                                                                   -- 99
-EXEC sp_executesql @sql, @paramlist,                               -- 100
-                   @orderid, @fromdate, @todate, @minprice,        -- 101
-                   @maxprice,  @custid, @custname, @city, @region, -- 102
-                   @country, @prodid, @prodname, @employeestr, @employeetbl
-

Building the Query

- -

On line 18, I declare the variable @sql which will hold my query string. The type should always be nvarchar(MAX). It should be MAX, so that you can fit any query in the variable. As for why it needs to be nvarchar, I will return to that. I'm ignoring the variable @paramlist for now. On line 20, I define the variable @nl which I set to the standard line-ending in Windows, CR-LF. While technically a variable, @nl is a constant in this procedure.

-

On lines 22-32, I compose the nucleus of the dynamic SQL query. That is, the query we will get when all input parameters are left out. Observe that I use two-part notation for the tables. You should always do this when you work with dynamic SQL for performance reasons. Exactly why, I will return to when I discuss caching and performance.

-

The condition WHERE 1 = 1 on line 32 is there so that all other conditions can be added as "AND something". I add @nl to the string, for reasons that will prevail.

- -

On lines 34-72, I check all the single-valued search parameters. If a parameter is non-NULL, I add a condition for the corresponding column to the -SQL string. I use the += operator which is a shortcut for @sql = @sql +. Note that if I want to include a quote in the query string, I need to double it, see for instance line 71. Again, I concatenate @nl after all conditions.

-

On lines 73-75, I handle the @employeestr parameter in the same manner as I did in search_orders_3. That is, I use the function intlist_to_tbl to crack the list into table format. You may have other ideas, but this is the way should do it as a first choice. As for alternatives, I will return to that later. Observe that just like the tables, I need to refer to the function with two-part notation.

-

On lines 77-79, I handle the parameter @employeetbl, and this is perfectly straightforward. The only deviation is that I use EXISTS to see whether this parameter was specified rather than checking for NULL.

-

Finally, on line 80 I add the ORDER BY clause.

-

You may note that for parameters that match columns that appear in multiple tables (@orderid, @custid, @prodid), I add conditions against both tables. This something I learnt very early in my SQL Server career that you should do to help the optimizer. It mattered more in those days when SQL Server did not have foreign-key constraints. Today, with proper foreign-key constraints (and which have not been applied with NOCHECK), the optimizer can move around the condition even if you apply it on the "wrong" table. But I added it nevertheless, and it's not a bad habit, as you may have some denormalised database design with redundant columns without a foreign-key relation between them. Nevertheless, I did not do this in the procedures with static SQL. I felt that in those procedures, the extra conditions add extra noise, but this is a less of an issue in code that builds a query string.

-

The Debug PRINT

-

On line 82-83, I do something very important: if the parameter @debug is 1, I print the SQL string. This is one more of these things that cannot be enough emphasised: always include a parameter that permits you to print the SQL string. One of the distinct disadvantages with dynamic SQL is that you can happen to concatenate the strings incorrectly leading to syntax errors, maybe only with some combination of input parameters. Finding this error by looking at the code that generates the dynamic SQL is hard, but once you see the SQL string, the error may be immediately apparent. For instance, a typical -error is a missing space, leading to code that reads:

- -
WHERE  1 = 1 AND o.OrderDate <= @todateAND p.ProductName LIKE @xprodname
-

If you look closely in the procedure code, I have already take precautions to avoid such goofs by having a leading space in most string literals, and also by adding the @nl parameter to each condition. However, that is not the main purpose of @nl. The reason I add @nl is to avoid that the query string becomes one single long line which is very difficult to read when I have to look at it. Thus, not only should you keep the code that generates the SQL string tidy, you should also produce an SQL string that is reasonably tidy.

-

If the query string is very long, it may be appear to be truncated in SQL Server Management Studio because it only prints the first 4000 characters. A workaround is to do:

-
IF @debug = 1
-   SELECT @sql FOR XML PATH(''), TYPE
-

By the default, SSMS displays the first 2 MB of a returned XML document, which hopefully should be sufficient. You will have to accept that characters that are special to XML, like < are replaced by sequences such as &lt;.

-

Running the Query

-

On lines 84 to 97, I set up the parameter list, and on lines 99 to 102 I execute the query using sp_executesql. It is extremely important to understand this system procedure. This is the vehicle to run parameterised queries.

-

sp_executesql is a system procedure that takes two fixed parameters. The first parameter is a batch of SQL statements and the second parameter is a parameter list. These parameters must be of the type nvarchar; you cannot pass varchar. (And thus I have declared the parameters @sql and @paramlist accordingly.) The remaining parameters are the actual parameters passed to the parameters in the parameter list. They must match the data types in the parameter list in the same way as when you call a regular stored procedure. That is, implicit conversion applies.

-

The system procedure executes the batch using the parameters values you pass it. If this sounds a little abstract, you can think of sp_executesql this way:

-
CREATE PROCEDURE sp <parameter list> AS
-  <SQL batch>
-go
-EXEC sp <actual parameter values>
-

That is, you create a nameless stored procedure and execute it in one go.

-

In search_orders_1, the parameter names in the query string are the same as in the surrounding parameters in the stored procedure. But don't be lured. They are physically separate and I could have used completely different names and the procedure would still have worked. The key is that the dynamic SQL cannot see any variables in the calling procedure; the dynamic SQL is a procedure of its own.

-

You may note that the parameter list in @paramlist is static. That is, the set of parameters is always the same, despite that some of them may not appear in the actual query string. While it would be possible to extend the parameter list as new non-NULL search parameters are encountered, that would only be unnecessarily complicated. There is no law in T‑SQL against having unused parameters.

-

For more information and examples with sp_executesql, please see the section on sp_executesql in my article The Curse and Blessings of Dynamic SQL.

-

Trying it out

-

Here are some test cases:

-
EXEC search_orders_1 @orderid = 11000
-EXEC search_orders_1 @custid  = 'ALFKI'
-EXEC search_orders_1 @prodid  = 76
-EXEC search_orders_1 @prodid  = 76, @custid = 'RATTC'
-EXEC search_orders_1 @fromdate = '19980205', @todate = '19980209'
-EXEC search_orders_1 @city = 'Bräcke', @prodid = 76
-EXEC search_orders_1 @employeestr = '402,109,207', @custid = 'PERTH'
-
-DECLARE @tbl intlist_tbltype 
-INSERT @tbl (val) VALUES(402), (109), (207)
-EXEC search_orders_1 @employeetbl = @tbl, @custid = 'PERTH'
-

If you try these and inspect the query plans, you will see that - the available indexes on the search columns are used with two exceptions: The index on Orders.EmployeeID is ignored, and on SQL 2008 and 2012, the index on Customers.City is not used. However, SQL 2014 uses this index. If you compare with the plans for search_orders_3, you will see that these are identical, except for the search on @custid alone.

-

I also encourage you to run the procedures with @debug = 1 to see the generated SQL.

-

Compilation and Caching

-

You have learnt that sp_executesql defines a nameless stored procedure and executes it directly. You may ask if this procedure is saved in the database. No, it is not. But, and this is the key, the query plan is saved in the cache. So the next time a user runs your search procedure with exactly the same set of search parameters, SQL Server will reuse the existing plan for that query.

-

That is, when you use static SQL, and there are these three calls.

-
EXEC search_orders_3 @orderid = 11000
-EXEC search_orders_3 @orderid = 11001
-EXEC search_orders_3 @orderid = 11002
-

There are also three compilations, because nothing is cached and recompilation is forced every time. Whereas with:

-
EXEC search_orders_1 @orderid = 11000
-EXEC search_orders_1 @orderid = 11001
-EXEC search_orders_1 @orderid = 11002
-

There is a compilation the first time, and on the second and third calls, the existing plan is reused. But add one more parameter:

-
EXEC search_orders_3 @orderid = 11000, @prodid = 76
-

And this will be a new compilation and a new cache entry. The existing plan for the search on OrderID alone is unaffected.

-

There is one qualification to make here, and it is one we have already touched: the table names must be specified in two-part notation, that is, with schema and table. If the query has FROM Orders without schema, SQL Server needs to consider the possibility that there may be an Orders table in the default schema of the user. And even if there isn't one right now, it might appear later. Therefore, SQL Server needs to have different cache entries for users with different default schemas. Now, normally users have dbo as their default schema, in which case this is a non-issue, but this is nothing you should rely on.

-

Special Search Conditions

-

For static SQL, we looked at how to implement some special search conditions. Let's review these for dynamic SQL as well.

-

Columns with Filtered Indexes

-

This was nothing I brought up with static SQL, because this is a non-issue with OPTION (RECOMPILE). But with cached plans, you need to be aware of this. Say that there is a Status column in the Orders table for which there are four possible values: N – New order, P – In process, E – Error, C – Processing completed. 99 % of the rows have the value C, and there is a filtered index on the Status column:

-
CREATE INDEX status_ix ON Orders(Status) WHERE Status <> 'C'
-

Say now that the search has a parameter @status where the user can search for orders with a specific status. If you simply mimic the code above, and do:

-
IF @status IS NOT NULL
-   SELECT @sql += ' AND o.Status = @status'
-

SQL Server will not use the filtered index, no matter what value the user passes, because it has a produce a plan that works with all parameter values, including @status = 'C'. You need to add some logic to add an extra condition so that the the filtered index can be used:

-
IF @status IS NOT NULL
-   SELECT @sql += ' AND o.Status = @status' +
-                  CASE WHEN @status <> 'C' 
-                       THEN ' AND o.Status <> ''C'''
-                       ELSE ''
-                  END
-

Here I assumed for simplicity that @status is a single-valued parameter, but it seems likely that in a real-world application @status would be multi-valued; that is, the user is able to select a number of status values he is interested in. You would need to do the same checks and add extra conditions in the case the user's choice falls entirely within the filtered index (and you want it to be used).

-

Choice of Sort Order

-

It may seem that this could be done as simple as:

-
@sql += ' ORDER BY ' + @sortcol
-

This could easily handle multiple sort columns. That is, the client could pass a value like 'CustomerID, OrderID DESC'. This breaks the principle that the client should know nothing about the query. However, it is a little difficult to argue this point very strongly here. The syntax of the string is not very difficult. (And the assumption is that the application builds the string from users choices in a UI; the user does not write the call himself.) At first glance, some readers may think that the string above will result in an error with ambiguous column names. But since ORDER BY is evaluated after SELECT in an SQL query, you can use the column names defined in the SELECT list in the ORDER BY clause, and thus CustomerID and OrderID without prefix are legit here. Another argument against the client forming part of the query is that the data model may change. But these are columns in the result set which the client needs to have knowledge of anyway to be able bind them to columns in an output grid or similar. That is, if the DBA would decide that OrderID should now be order_id, you would have to change the query to read:

-
SELECT o.order_id AS OrderID, ...
-

to avoid breaking the client.

-

There is however the issue of SQL injection. Maybe it is a web application. Maybe the sort parameters are passed in a URL. Maybe the web application connects as sa. (Bad! Bad! Bad!). And then some user out on the evil Internet passes '1 SHUTDOWN WITH NOWAIT'. That is, this use of @sortcol opens for SQL injection. You can easily prevent this with quotename():

-
@sql += ' ORDER BY ' + quotename(@sortcol)
-

quotename adds brackets around the value, doubling any right brackets there may be in it, so that you still have a legal quoted identifier. But now you can no longer easily accept multi-column sort conditions or ASC/DESC in a single parameter. You would have to parse @sortcol to put in quotename where it's needed. Which is not trivial at all.

-

So, after all, I think it is much better to use CASE to map the input value to a sort column:

-
SELECT @sql += ' ORDER BY ' + 
-               CASE @sortcol WHEN 'OrderID'      THEN 'o.OrderID'
-                             WHEN 'EmplyoeeID'   THEN 'o.EmployeeID'
-                             WHEN 'ProductID'    THEN 'od.ProductID'
-                             WHEN 'CustomerName' THEN 'c.CompanyName'
-                             WHEN 'ProductName'  THEN 'p.ProductName'
-                             ELSE 'o.OrderID'
-               END + CASE @isdesc WHEN 0 THEN ' ASC' ELSE ' DESC' END
-

This is reminiscent of how we did in search_orders_3, but it is still a lot simpler, since we don't need to have different CASE expressions for different data types, but we can use a single one. And it is also easy to handle a parameter to control ASC/DESC. If you want multiple sort columns, you will need to repeat the above, but it grows linearly and does not explode like it does for static SQL.

-

Observe that in the CASE for @sortcol I have an ELSE with a default sort order. Without the ELSE, the entire query string would become NULL if the application passes an unexpected value in @sortcol.

-

Optional Tables

-

The example with the @suppl_country parameter is of course trivial to handle with dynamic SQL:

-
IF @suppl_country IS NULL 
-   SELECT @sql += ' AND EXISTS (SELECT *
-                                FROM   Suppliers s
-                                WHERE  s.SupplierID = p.SupplierID
-                                  AND  s.Country    = @suppl_country)'
-

It is just another condition to add.

-

Alternate Tables

-

This is also something which is quite simple to handle with dynamic SQL. Say that we have this parameter @ishistoric. In this case, lines 27-28 in search_orders_1 would read:

-
FROM dbo.' + CASE @ishistoric
-                  WHEN 0 THEN 'Orders'
-                  WHEN 1 THEN 'HistoricOrders'
-             END + ' o
-JOIN dbo.' + CASE @ishistoric
-                  WHEN 0 THEN '[Order Details]'
-                  WHEN 1 THEN 'HistoricOrderDetails'
-             END + ' od
-

You may get the idea that you should pass the table name from the application, but while it is almost acceptable for the sort column, it is entirely impermissible for the table names. The DBA should be free to rename a table without affecting an application that only uses stored procedures. And what if the application passes table name with schema and you wrap the full name in quotename()?

-

No, always map the application input to a table name through CASE.

-

Using the CLR

-

Let's now look at how implement search_orders in a CLR stored procedure. I've written two CLR procedures, - search_orders_vb - and search_orders_cs, - that I will discuss in this section. As the code is fairly repetitive, I'm not including any of -them in full here, but I only highlight some important points. (These points are also generally applicable for the data-access part of a client-side only implementation.)

-

Be aware that I will not go into any details on writing CLR stored procedures as such. If you have never - worked with the CLR before, but are curious, I refer you to Books Online. At - the end of this section there are instructions on how to create these two -procedures in SQL Server.

-

The Parameter List

-

There is one deviation in the parameter list: the parameter @employeetbl is not there, since you cannot pass table-valued parameters to a CLR stored procedure. Thus, for CLR stored procedures, you will need to pass multi-valued parameters as a comma-separated string (or some other format like XML).

-

Setting up the Statement

-

This is how search_orders_cs starts off:

-
string Query;
-SqlCommand Command = new SqlCommand();
-
-Query = @"SELECT o.OrderID, o.OrderDate, od.UnitPrice, od.Quantity,
-                 c.CustomerID, c.CompanyName, c.Address, c.City,
-                 c.Region, c.PostalCode, c.Country, c.Phone,
-                 p.ProductID, p.ProductName, p.UnitsInStock,
-                 p.UnitsOnOrder
-          FROM   dbo.Orders o
-          JOIN   dbo.[Order Details] od ON o.OrderID = od.OrderID
-          JOIN   dbo.Customers c ON o.CustomerID = c.CustomerID
-          JOIN   dbo.Products p ON p.ProductID = od.ProductID
-          WHERE  1 = 1 ";
-

As you can see this is very similar to search_orders_1, including the dbo prefix. The rule that you should use two-part notation to maximise - query-plan reuse applies to CLR procedures as well.

-

Defining the Parameters

-

So this should be plain vanilla for anyone who has written the teeniest piece of data-access code with ADO .NET. Except that I have seen so many examples on forums where people inline the parameter values into the query string. And it is equally impermissible no matter you build the query in T‑SQL or some other language. Your queries should always be parameterised. (Except for the very few cases inlining may be needed for performance.)

-

This is however not the place to give a full coverage of the SqlParameter class in .NET. If you have never heard of this class before (and you call yourself a .NET programmer), you will have to look at the examples and then study the class further in MSDN Library.

-

Here is how the @custid - parameter is added in search_orders_cs:

-
if (! Custid.IsNull) {
-   Query += " AND o.CustomerID = @custid" +
-            " AND c.CustomerID = @custid";
-   Command.Parameters.Add("@custid", SqlDbType.NChar, 5);
-   Command.Parameters["@custid"].Value = Custid;
-}
-

As in the T‑SQL example, the query string is extended - with the conditions for the - parameter in both Orders and Customers.

-

What is different from T‑SQL is how we define the parameter list and supply - the value. In T‑SQL the parameter list is a string, which includes all - possible parameters. When working with the CLR, we only define the parameters - that actually are in use. The reason for this difference is entirely a matter of convenience. We define a parameter by adding it to the Parameters - collection of the Command object. The Add method has a number of overloads, but I prefer to use the ones that takes the parameter name and a type indicator from the SqlDbType enumeration. For parameters of the variable-length data types – char, varchar, - nchar, nvarchar, binary and varbinary – I use an overload where I can also specify the length of the parameter. There is no means to pass precision or scale – used with the data types decimal, numeric, time, datetime2 and datetimeoffset – in the Add method, but the SqlParameter class has Precision and Scale properties which permits you to set these values after you have created the parameter.

-

Once the parameter is defined, I assign the value separately, although you could do all on a single line if you feel like:

-
Command.Parameters.Add("@custid", SqlDbType.NChar, 5).Value = Custid;
-
-

Here is the above in Visual Basic .NET:

-
If Not Custid.IsNull Then
-   Query &= " AND o.CustomerID = @custid" & _
-            " AND c.CustomerID = @custid" & VbCrLf
-   Command.Parameters.Add("@custid", SqlDbType.NChar, 5)
-   Command.Parameters("@custid").Value = Custid
-End If
-

It's very similar to the C# example. Different operator for string - concatenation, parentheses to address elements in the collection and no - semicolons.

-

Don't Forget to Specify the Length!

-

There is one thing about the parameter definition, I like to highlight:

-
Command.Parameters.Add("@custname", SqlDbType.NVarChar, 40);
-

I explicitly specify the length of the string parameter. ADO .NET permits you leave out the length when you add the parameter. ADO .NET also supplies the method AddWithValue that permits you to define a parameter and -provide the value in a single call whereupon ADO .NET guesses the data type. Do not fall into the trap of using these shortcuts! The reason these alternatives are bad is that when ADO .NET constructs the call to sp_executesql for you, it will use the length -of the actual parameter value when it builds the parameter list. Thus, if one user enters Alfred, the parameter will be declared as:

-
@custname nvarchar(6)
-

But if another user enters Berglund, the parameter will be declared as

-
@custname nvarchar(8)
-

When SQL Server looks up a query in the cache, it hashes the query text and the parameter list and performs a lookup on that hash value. That is, differences in the parameter list will result in different cache -entries and more compilations. Note here the difference to OPTION (RECOMPILE). With the latter you get compilation every time, but the plans don't take up space in the cache. This happens here leading to cache bloat, which under extreme circumstances can lead to degraded -overall performance on the SQL Server instance.

-

If you feel that you don't want to hardcode the length of the column in case it could change in the future, rather than leaving out the length, use the maximum length for the type, that is 8000 for char, varchar, binary and varbinary and 4000 for nchar and nvarchar.

-

Handling the Multi-Valued Parameter

-

I will have to admit that I was lazy and used the list-to-table function:

-
    if (! Employeestr.IsNull) {
-       Query +=  " AND o.EmployeeID IN" +
-                 " (SELECT number FROM intlist_to_tbl(@employeestr))";
-       Command.Parameters.Add("@employeestr", SqlDbType.NVarChar, -1);
-       Command.Parameters["@employeestr"].Value = Employeestr;
-    }
-

While this works, the optimizer has no information of how many elements the list will return and it will guess 1. It would be a little prettier to use the CSV_splitter class that I present in my article Arrays and Lists in SQL Server 2008 to pass the value to a table-valued parameter but I leave that as an exercise to the reader. That would permit SQL Server to have knowledge of the number of elements when it builds the plan. As long as the lists are typically short, this is not likely to be any major issue.

-

Running the Query

-

Here is the code to run the query in C#:

-
using (SqlConnection Connection =
-   new SqlConnection("context connection=true"))
-{
-  Connection.Open();
-
-  if (Debug) {
-     SqlContext.Pipe.Send(Query);
-  }
-
-  Command.CommandType = CommandType.Text;
-  Command.CommandText = Query;
-  Command.Connection  = Connection;
-  SqlContext.Pipe.ExecuteAndSend(Command);
-}
-

This is very much is the standard way to run a query from a CLR procedure. You connect on the context connection, that is, the same connection you are already running on. SqlContext.Pipe.ExecuteAndSend runs the command and returns the result set to the client. SqlContext.Pipe.Send is how you do PRINT from a CLR procedure.

-

Loading the Examples

-

If you have any flavour of Visual Studio 2005 or later (including the Express - editions), you can deploy search_orders_cs and search_orders_vb - from Visual Studio. (But please don't ask me how to do it, Visual Studio - just leaves me in a maze.)

-

Since the .NET Framework comes with Windows and includes compilers - for the most - common .NET languages, you can also load them without Visual Studio. First - make sure that C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727 (or - corresponding) is in your path. Then run from a command-line window:

-
csc /target:library search_orders_cs.cs
-vbc /target:library search_orders_vb.vb
-

To load the DLLs into SQL Server, you can use - load_clr_sp.sql. - You will have to change the path in the CREATE ASSEMBLY command to where you placed the - DLL. Note that the paths are as seen from SQL Server, so if you don't have SQL - Server on your local machine, you will have to copy the - DLLs to the SQL - Server box, or specify a UNC path to your machine.

-

Trying it out

-

The same test cases as for search_orders_1:

-
EXEC search_orders_cs @orderid = 11000
-EXEC search_orders_cs @custid  = 'ALFKI'
-EXEC search_orders_cs @prodid  = 76
-EXEC search_orders_cs @prodid  = 76, @custid = 'RATTC'
-EXEC search_orders_cs @fromdate = '19980205', @todate = '19980209'
-EXEC search_orders_cs @city = N'Bräcke', @prodid = 76
-EXEC search_orders_cs @employeestr = '402,109,207', @custid = 'PERTH'
-

The query plans should be identical to search_orders_1, as the queries are the same. Hint: if you want to look at the query plans, you need to use Profiler, - and get the Showplan XML event. For some reason, you don't see query - plans for queries submitted from CLR code in Management Studio.

-

An Example with Unparameterised SQL

- -

We will now turn to an example that does the forbidden: it inlines all parameters and does not use parameterised SQL. One reason I show you this is example is pure deterrence: to make you see how much more difficult this is than parameterised SQL. But there are also situations when inlining an occasional parameter may be a good idea to resolve a performance problem. Thus, it may be good to know the technique if you need to do this, but I like to stress that this is not a step that you should take lightly.

-

The name of the procedure for this is example is search_orders_2. I don't include the procedure in full here, but only comment on certain parts.

-

General Notes

-

-When building a non-parameterised query with the values inlined, you need to -be very disciplined when you write your code. It's very easy to get lost in a maze of -nested quotes. I often see people in SQL forms posting code like:

-
EXEC('SELECT col1, col2, ...
-      FROM   ...
-      WHERE  ' + CASE @par1 IS NULL THEN ' + col = ''' + @par  + ''' + ...)
-

-This is difficult to read and maintain, and if it goes wrong, you have no idea -what SQL you are actually generating. search_orders_2 aggregates the SQL -code into a variable, and there is a @debug parameter so I can see the -generate SQL code if needed. And to make the debug output easier to read I use the variable @nl like I did in search_orders_1.

-

To run the code I use EXEC(), but it works equally well with sp_executesql without any parameter list. Again, keep in mind that the dynamic SQL is a separate scope and cannot refer to variables in the surrounding procedure.

-

Handling String Values

-

To understand the problem, we will start with looking at a parameter in search_orders_2 which is unique to this procedure: @city_bad, which is bad implementation of the @city parameter that reflects what the naïve and inexperienced user may try:

-
SELECT @sql += @sql AND c.City = ''' + @city_bad + ''''
-

This has a number of problems. One is the missing N for nvarchar. Try this:

-
EXEC search_orders_2 @city_bad = N'Łódź'
-EXEC search_orders_2 @city_bad = N'Luleå'
-

While there are orders from customers in both Łódź (a Polish city) and Luleå (in Sweden), at least one of the procedure calls will come back empty-handed, exactly which depends on your collation. String literals preceded by N are nvarchar, and those without are varchar and can only hold characters for the code page of the collation and other characters are replaced by fallback characters. You can see this by running this SELECT:

-
SELECT 'Łódź', 'Luleå'
-

Again, exactly what you see depends on your collation, but you may see Lódz, Lodz, Lulea, or even have question marks in some places.

-

That is, however, the small problem. Assume instead that we want to search for customers in the capital of Chad, N'Djamena:

-
EXEC search_orders_2 @city_bad = N'N''Djamena'
-

This ends with syntax errors:

-
-

Msg 102, Level 15, State 1, Line 11

-

Incorrect syntax near 'Djamena'.

-

Msg 105, Level 15, State 1, Line 11

-

Unclosed quotation mark after the character string ' ORDER BY o.OrderID'.

-
-

Not what you call a good user experience. And there is also, as I said a few times, the issue of SQL injection. Try this:

-
EXEC search_orders_2 @city_bad = '''SHUTDOWN --'
-

As it happens this will not shut down you server, but you will get the informational message -The SHUTDOWN statement cannot be executed within a transaction or by a stored procedure. But the important point is: you were able to inject SQL code where there should have been a city name.

-

Let us now look at the proper way to inline a string parameter. We have already mentioned the function quotename(), but it is time to give it a closer look. This built-in function delimits a string with the delimiter(s) you specify, and, this is the important part: if the string includes the closing delimiter, this character is doubled. The default delimiter is [], and the main purpose of quotename is to quote identifiers when you generate queries from metadata, but you can use other delimiters as seen in these examples:

-
SELECT quotename('Order Details')                     -- => [Order Details]
-SELECT quotename('Two o' + char(39) + 'clock', '''')  -- => 'Two o''clock'
-SELECT quotename('abc{}def', '{')                     -- => {abc{}}def}
-

And using the second of these examples, we can now see how the @city parameter should be implemented:

-
IF @city IS NOT NULL
-   SELECT @sql += ' AND c.City = N' + quotename(@city, '''') + @nl
-

Here I have added the N to mark a Unicode literal and there is also @nl to make the debug output prettier. And I use quotename with single quote(') as the delimiter. If you try these searches:

-
EXEC search_orders_2 @city = N'Łódź'
-EXEC search_orders_2 @city = N'N''Djamena'
-EXEC search_orders_2 @city = '''SHUTDOWN --'
-

You will find that the first two return lots of rows. The last does not return any rows – but nor does it attempt to shut down your SQL Server instance. (Credit for the idea of using quotename() this way goes my MVP colleague Steve Kass.)

-

You should always use quotename when you inline string parameters in your dynamic searches. There is a caveat, though: quotename is designed for quoting object names, and the input parameter is nvarchar(128). If the input value is longer, you get NULL back. However, I find it extremely unlikely that you can find a good case where it makes sense to inline a string parameter that long. (For a dynamic search, I should hasten to add. There are other situations you may need it, and in such case you can use my function -quotestring() from my Curse and Blessings article.)

-

No, we have not said all there is to say about inlining string parameters yet. Let's return to that N. You should include that N only when the type of the parameter is nvarchar or nchar. It should not be there if you are comparing the value with a varchar or char column. Because of the rules for data-type precedence in SQL Server, the (var)char column will be implicitly converted to n(var)char and this affects how any index on the column can be used. If the column has a Windows collation, the index can still be used but in a slower way. If the column has an SQL collation, the index is of no use at all, why that N can cause serious performance problems when applied incorrectly.

-

So as you see, inlining string parameters is anything but easy.

-

Datetime Parameters

-

Compared to string values, date/time values are easier to deal with, but only in a relative way. People often go wrong with these as well. In search_orders_2, I handle the @fromdate parameter this way:

-
SELECT @fromdatestr = convert(char(23), @fromdate, 126)
-...
-IF @fromdate IS NOT NULL
-   SELECT @sql += ' AND o.OrderDate >= ' + quotename(@fromdatestr, '''') + @nl
-
-

The whole key is the format code 126. The results in a string like this one 2003-04-06T21:14:26.627. This is the format mandated by the standard ISO 8601, and it is commonly used in XML. More -importantly, it is one of the three formats for datetime literals in SQL Server of -which the interpretation does not depend on the settings for date format and -language. If you don't understand what I'm talking about, try these statements:

-
SET DATEFORMAT mdy
-SELECT convert(datetime, '02/07/09')
-SET DATEFORMAT dmy
-SELECT convert(datetime, '02/07/09')
-go
-SELECT convert(datetime, '2002-12-19')   -- Fails!
-go
-SET LANGUAGE Swedish
-SELECT convert(datetime, 'Oct 12 2003')  -- Fails! (It's "Okt" in Swedish.)
-

If you always use code 126 to produce a datetime string for your dynamic SQL, you don't have to worry about this. (When it comes to the newer date/time data types, there are a few more safe formats, but there is still a lot of datetime out there, so stick with code 126.) As for using an extra variable, this is mainly a matter keeping the code that produces the dynamic SQL clean.

-

Numeric Parameters

-

Numeric values are the easiest to inline, as you simply can apply convert:

-
IF @orderid IS NOT NULL
-   SELECT @sql += ' AND o.OrderID = ' + convert(varchar(10), @orderid) +
-                  ' AND od.OrderID = ' + convert(varchar(10), @orderid) + @nl
-

Although, you have to be careful to make the string long enough to fit all possible values.

-

For some numeric parameters in the procedure, I use an intermediate string variable:

-
SELECT @minpricestr = convert(varchar(25), @minprice)
-...
-IF @minprice IS NOT NULL
-   SELECT @sql += ' AND od.UnitPrice >= ' + @minpricestr + @nl
-
-

This is purely a matter of aesthetics.

-

If you get the idea to inline float or real values, you will need to be more careful, since with a casual use of convert you can lose precision. But it's a little difficult to see a case where you would need to do this in the first place.

-

Multi-valued Parameters

-

Let's now look at how the parameters @employeestr and @employeetbl should be handled. @employeestr is supposed to be a comma-separated string, so it sounds dirt simple:

-
IF @employeestr IS NOT NULL
-   SELECT @sql += ' AND o.EmployeeID IN (' + @employeestr + ')' + @nl
-

But this would be bad mistake, as this would open the code for SQL injection. And while it is kind of difficult to make a serious intrusion in the 15-character long @city_bad, the data type of @employeestr is varchar(MAX), so there is all the space in the world for an intruder. But I pass my comma-separated list from SSRS, how could there be SQL injection? Answer: when you write your stored procedure, you should assume the worst. That is, a web application that runs as sa and sends data from a URL right into your parameter. Don't laugh, it happens. When you write your stored procedure, you should make your procedure bullet-proof and make no assumptions.

-

So here is how I handle the @employeestr parameter:

-
IF @employeestr IS NOT NULL
-BEGIN
-   SELECT @employeestr =
-          (SELECT ltrim(str(number)) + ','
-           FROM intlist_to_tbl(@employeestr)
-           FOR XML PATH(''))
-END
-
-SELECT @employeestr = substring(@employeestr, 1, len(@employeestr) - 1)
-...
-IF @employeestr IS NOT NULL
-   SELECT @sql += ' AND o.EmployeeID IN (' + @employeestr + ')' + @nl
-

That is, I unpack the string into table format with that list-to-table function. Then I produce a new comma-separated list using the FOR XML PATH syntax. The intended purpose of FOR XML PATH is to generate an XML document, but Microsoft designed it so that if you don't give any element name (that's what the empty string after PATH means), you get a concatenated list of the values from a single-column query. This results in a list with a trailing comma, and I delete this comma in the subsequent SELECT. And then I use my local variable that I can fully trust with IN as in the original example. If @employeestr does not contain the comma-separated list as expected, it is likely that this will result in a conversion error inside intlist_to_tbl. Not very pretty, but it keeps the illegitimate input out.

-

The same solution is used for the parameter @employeetbl (which is not directly accessible from the SQL string):

-
IF EXISTS (SELECT * FROM @employeetbl)
-BEGIN
-   SELECT @employeestr =
-          (SELECT ltrim(str(val)) + ','
-           FROM   @employeetbl
-           FOR XML PATH(''))
-END
-

Effects on Caching

-

I said previously that an advantage of using dynamic SQL over static SQL with OPTION (RECOMPILE) is that it reduces the amount of compilation, since the plan is cached. But this applies to parameterised SQL only. These two calls:

-
EXEC search_orders_1 @orderid = 11000
-EXEC search_orders_1 @orderid = 21000
-

Generates one query plan and one compilation. That is, the second call reuses the plan compiled by the first call. Whereas:

-
EXEC search_orders_2 @orderid = 11000
-EXEC search_orders_2 @orderid = 21000
-

Generates two query plans and two compilations. This is because when SQL Server caches the plan for a query string it hashes the string, exactly as it stands, so the smallest difference produces a different hash value, why the plan for o.OrderID = 11000 cannot be reused when the query instead reads o.OrderID = 21000. The only time a plan can be reused is when someone makes a search on exactly the same parameter values.

-

That is, if you inline all parameters, the behaviour is quite similar to static SQL with OPTION (RECOMPILE). Except that you also litter the cache with all those plans that are rarely reused. That's a serious waste of memory. Although, this is a statement that requires some qualification, because there are some settings that changes this behaviour.

- -

Conclusion

-

I have now shown you a bad example, search_orders_2, which inlines all parameters and I hope you have gathered why this is a really poor choice as a general solution. But as we shall see in the next section, there are situations where may need to do this for a specific parameter.

-

When Caching Is Not What You Want

-

An advantage with parameterised dynamic SQL is that you get less compilation because plans can be reused. But caching is not always to your advantage. Earlier on in the article, we had this pair:

-
EXEC search_orders_3 @custid = 'ERNTC',
-                     @fromdate = '19980218', @todate = '19980218'
-EXEC search_orders_3 @custid = 'BOLSR',
-                     @fromdate = '19960101', @todate = '19961231'
-

The choice of parameters is the same, but the profile is very different. ERNTC is the most active customer in Northgale with 591 orders in total, but the date interval is only one day. BOLSR, on the other hand, has only placed a single order, but the interval is the full year. There are indexes on both CustomerID and OrderDate. For the first call, the index on OrderDate looks like the best bet, whereas the index on CustomerID sounds more appealing for the second call. And, indeed, if you look at the query plans, this is what we get. (Sort of; the call for ERNTC uses both indexes and joins these.)

-

But what happens if we use search_orders_1 instead?

-
EXEC search_orders_1 @custid = 'ERNTC',
-                     @fromdate = '19980218', @todate = '19980218'
-EXEC search_orders_1 @custid = 'BOLSR',
-                     @fromdate = '19960101', @todate = '19961231'
-

The plan is the same for both. When I tested, there was a yellow triangle on a hash match operator in the execution for BOLSR, indicating that the hash table spilled to disk (which certainly is not good for performance).

-

In the following, I will discuss some tactics you can use when you work a search that uses dynamic SQL and where the choice of plans is sensitive to the actual values.

-

OPTION (RECOMPILE)

-

For this particular case, OPTION (RECOMPILE) could be a simple way out. If the search has both @custid, @fromdate, and @todate, add OPTION (RECOMPILE):

-
IF @custid IS NOT NULL AND (@fromdate IS NOT NULL OR @todate IS NOT NULL)
-   SELECT @sql += ' OPTION(RECOMPILE)' + @nl
-

More generally, when you identify that you have search parameters that both relate to indexed columns, and where the selectivity is very dependent on the actual parameter values, add OPTION (RECOMPILE), so that you always get the best plan you can get from the statistics.

-

Obviously, this strategy will add quite a few unnecessary compilations.

-

Changing the Query Text

-

As I discussed previously, SQL Server looks up queries in the cache by - hashing the query text. This means that two queries with different text are - different entries in the cache, even if they are logically equivalent. There - are many ways to alter the query text, for instance you could do something - like:

-
IF @fromdate IS NOT NULL AND @todate IS NOT NULL
-BEGIN
-   SELECT @sql += CASE WHEN @fromdate = @todate
-                       THEN ''
-                       WHEN datediff(DAY, @fromdate, @todate) <= 7
-                       THEN ' AND 2 = 2 '
-                       WHEN datediff(DAY, @fromdate, @todate) <= 30
-                       THEN ' AND 3 = 3 '
-                       ...
-

The advantage with changing the query text depending on the parameter values over OPTION (RECOMPILE) is that you will not get as many compilations. But it also means that in some cases you - will not run with the best plan, since predicting the exact breakpoint between different plans is hard. With some luck the damage is limited. Even if the plan for a single day is not the best for - the span of a week, - it may still yield acceptable performance. But you will have to know your data, and - possibly tune as time goes.

-

Could this technique also be used to deal with the fact that different - customers have a very different number of orders? Probably not. Counting - the number of orders for a customer before we construct the query is taking - it too far in my opinion, and it could be more expensive than what you save in - the other end. If you really wanted to do this, you would probably have to maintain a separate table with order counts per customer. You would not have to maintain this table in real-time, but it would be sufficient to update it nightly or weekly.

-

Inlining Some Values

-

Sometimes you can resolve this sort of problems by inlining a specific parameter into the query. Typically, this would be a parameter with a very skewed distribution. Say that the search includes a @status parameter, and - there are only four possible values for Orders.Status, whereof - Completed accounts for 95 % of the values. A typical search may be for new orders, -less than 1 % of the rows. This is a situation where it could make sense to inline the @status parameter. The four different values are really different searches.

-

You may recognize the situation from when I discussed filtered indexes where I presented a somewhat different approach. I think both approaches are valid. The solution I presented for filtered indexes, assumes that you know that there is a filtered index and that you also have some understanding of the distribution of the values. But maybe you don't know what the distribution between the small of handful of values will be in production, or what indexes a DBA may add in the future. By inlining you keep the doors open, and as long it is only a matter of small number of values, you will not produce that many extra plans.

-

What about the case where we had competing indexes like in the example with customer ID and a date interval? In this case, OPTION (RECOMPILE) works out better, since you avoid cache littering. Overall, inlining customer IDs on a general basis is likely to be a bad idea. But if you have five big-whiz customers that overtrump everything else, it may make sense to inline these customer IDs and parameterise the rest. The same applies to product IDs, if you have a very small number of huge-selling products and umpteen low-volume products. It's all about knowing your data.

-

Note: above I mentioned forced parameterisation. If your database is in this mode, inlining parameters is useless, since SQL Server will replace the constants with parameters anyway.

-

Index Hints and Other Hints

-

Sometimes index hints or query hints other than OPTION (RECOMPILE) can be useful. Returning to our example with ERNTC and BOLSR, we can make the observation that the index on CustomerID is always OK. It does not always give the best plan, but it does not give a really bad plan. Whereas, as I noted, the index on OrderDate resulted in hash spills for a long interval. So one strategy could be do:

-
FROM   dbo.Orders o ' + CASE WHEN @custid IS NOT NULL AND
-                                  (@fromdate IS NOT NULL OR
-                                  @todate IS NOT NULL) 
-                             THEN 'WITH (INDEX = CustomerID) '
-                             ELSE ''
-                         END
-

I cannot say that this is my favourite strategy. Overall, index hints is something you should use sparingly. Casually used, they can cause performance problems because you force the optimizer to use the completely wrong index.

-

A hint that makes a little more sense is the hint OPTIMIZE FOR. If you want plans to always be compiled with the big customers in mind, you could add

-
IF @custid IS NOT NULL
-   @sql += ' OPTION (OPTIMIZE FOR (@custid = ''ERNTC''))'
-

Or if you want to discourage the optimizer from producing different plans depending on what it sniffs for the date parameters, you could add:

-
IF @fromdate IS NOT NULL AND @todate IS NOT NULL
-   @sql += ' OPTION (OPTIMIZE FOR (@fromdate UNKNOWN, @todate UNKNOWN))'
-

The optimizer will now apply its standard assumption for a closed interval, which is 10 % or so, and typically too much to make the index interesting.

-

Conclusion

-

You have now learnt that there are two ways to implement dynamic search conditions: static SQL and dynamic SQL. Solutions with static SQL almost always use OPTION (RECOMPILE), except in a very simple cases where the optimizer's use of startup filters can be good enough. You have also seen that solutions with static SQL are easy to implement as long as the requirements are moderately complex. Once the requirements increase in complexity, the solutions with static SQL easily becomes unwieldy. A second disadvantage with solutions using OPTION (RECOMPILE) is that very frequent searches can incur an unwanted load on the system because of all the compilations.

-

More than half of the text in this article was taken up by the discussion on dynamic SQL. This is a good indication of the fact that dynamic SQL is more difficult to work with and requires more understanding from you as a programmer. But dynamic SQL has the advantage that when the requirements for what conditions to handle increase in diversity, the complexity of the code grows more linearly than with static SQL. Correctly used, dynamic SQL reduces the amount of resources needed for query compilation. A special issue with dynamic SQL that you must not forget is that you need to cater for permissions on the tables accessed by the dynamic SQL. Certificate signing is the best way to resolve this when direct SELECT permissions on the tables are not acceptable.

-

It is important to stress that you cannot only apply the methods in this article on auto-pilot. You need to make your own judgements. And moreover, you need to test your queries, both for logic and for performance. Since you may have a multitude of parameter combinations, it may not be feasible to test all combinations, but you should at least test all parameters in isolation, as well as combinations you expect to be common. With dynamic SQL, you should be careful to test all parameters in combination with some other parameter, because with dynamic SQL you can easily slip so that a certain combination results in a syntax error.

-

Finally, when testing for performance, you need a database of some size. The article was based on Northgale, and while larger than its source Northwind, it is still a very small database.

-

Feedback and Acknowledgements

-

All through the years of this article, and its predecessor, a lot of people have given valuable suggestions and input. My fellow SQL Server MVPs: Steve Kass, Marcello Poletti, Simon Sabin, Alejandro Mesa, Adam Machanic, and Umachandar -Jaychandran. And all the rest of you: Mark Gordon, Phillipp - Sumi, Thomas Joseph Olaes, Simon Hayes, Sloan Holliday, Travis Gan and Eric Garza . - I would also like to give a special credit to Tony Rogerson, Steve Kass, Ivan Arjentinski and Graham Kent for their involvement - with the bug with OPTION (RECOMPILE) in SQL 2008 RTM. My big thanks to all of you.

-

If you have questions or comments on the contents in the article, feel free - to mail me at esquel@sommarskog.se. (And that most emphatically includes any spelling or grammar error that you spot!) If you are working with a specific problem and need help, you can mail me - too. However, I would encourage you in such case to post your question on a - public forum for SQL Server, as there are more people who can answer your - questions. (And you may get your answer more rapidly!)

-

Revision History

-
-
2015-11-15
-
Corrected a couple of small errors in code fragments. In search_orders_1, I had failed to prefix the call to intlist_to_tbl with dbo, which is necessary to make sure that the cache entry can be shared among users.
-
2014-12-27
-
Not a total makeover, but a general overhaul in an attempt to make the presentation clearer. The introductions for static and dynamic SQL now both begin with a summary of advantages and disadvantages. Some significant additions to the content: -
    -
  • On popular demand: I'm now giving examples how you should handle multi-choice parameters. To this end there are two new two parameters to search_orders.
    • -
  • There is now a deeper discussion on dynamic sort order and alternate tables with more examples.
    • -
  • Reworked the text about the original bug with OPTION (RECOMPILE), since you should be on a much later service pack by now and added text about the new bug with OPTION (RECOMPILE) uncovered in the autumn of 2014.
    • -
-...and then there is a formatting makeover to adapt to my new style sheet. -
-
2013-11-02
-
Travis Gan pointed out that in the section Performance: The Fine Print, there is a risk for parameter sniffing and I've added a short discussion on this. Also, corrected a silly error in the demo procedure search_orders_4. (The arguments to datediff were in the wrong order.)
-
2011-08-26
Håkan Borneland was kind to point out that my update of 2011-08-01 was not complete, but I still said that there was no service pack for SQL 2008 R2 in one place.
-
2011-08-01
Updated the article to reflect the release of Service Pack 1 for SQL 2008 R2.
-
2010-10-16
Service Pack 2 for SQL 2008 has now been released, and I have updated the section A Tale of Service Packs and Cumulative - Updates accordingly.
-
2010-05-23
There is now a Cumulative Update for SQL 2008 R2 with -the corrected behaviour of OPTION (RECOMPILE).
-
2010-05-13
Updated the article for SQL 2008 R2. Note that -RTM-version of R2 has the old behaviour of OPTION (RECOMPILE).
-
2009-11-22
Republished the article, since CU5 of SQL 2008 SP1 -restores the RTM behaviour of OPTION (RECOMPILE), but now without the bug.
-
2009-02-14
Pulled the article, since Microsoft had reverted to the -old behaviour of OPTION (RECOMPILE) because of a bug.
- -
2008-08-03
The first version of the article for SQL 2008. A lot of the material from the older version has been ripped out, and a new section on Alternate Key Lookup has been added. Static SQL is now covered before dynamic SQL.
-
-

Back to my home page.

- -
-
- -
-
-
\ No newline at end of file diff --git a/Articles/Error and Transaction Handling in SQL Server.htm b/Articles/Error and Transaction Handling in SQL Server.htm deleted file mode 100644 index b64e274d..00000000 --- a/Articles/Error and Transaction Handling in SQL Server.htm +++ /dev/null @@ -1,342 +0,0 @@ - - - - - -Error and Transaction Handling in SQL Server - - -
-

Error and Transaction Handling in SQL Server -

Part One – Jumpstart Error Handling

-
-

An SQL text by Erland Sommarskog, SQL Server MVP. Latest revision: 2015-05-03. Copyright applies to this text.

- -

Introduction

- -

This article is the first in a series of three about error and transaction handling in SQL Server. The aim of this first article is to give you a jumpstart with error handling by showing you a basic pattern which is good for the main bulk of your code. This part is written with the innocent and inexperienced reader in mind, why I am intentionally silent on many details. The purpose here is to tell you how without dwelling much on why. If you take my words for your truth, you may prefer to only read this part and save the other two for a later point in your career.

-

On the other hand, if you question my guidelines, you certainly need to read the other two parts, where I go into much deeper detail exploring the very confusing world of error and transaction handling in SQL Server. Parts Two and Three, as well as the three appendixes, are directed towards readers with a more general programming experience, although necessarily not with SQL Server. This first article is short; Parts Two and Three are considerably longer.

-

Table of Contents

-

Introduction

-

Index of All Error-Handling Articles

-

Why Error Handling?

-

Essential Commands

-

TRY-CATCH

-

SET XACT_ABORT ON

-

General Pattern for Error Handling

-

Three Ways to Reraise the Error

-

Using error_handler_sp

-

Using ;THROW

-

Using SqlEventLog

-

Final Remarks

-

End of Part One

-

Revision History

-
- -

Index of All Error-Handling Articles

-

Here follows a list of all articles in this series:

-
-

Part One – Jumpstart Error Handling (this article).

-

Part Two – Commands and Mechanisms.

-

Part Three – Implementation.

-

Appendix 1 – Linked Servers. (Extends Part Two.)

-

Appendix 2 – CLR. (Extends both Parts Two and Three.)

-

Appendix 3 – Service Broker. (Extends Part Three.)

-
-

All the articles above are for SQL 2005 and later. For those who still are on SQL 2000, there are two older articles:

-
-

Error Handling in SQL Server 2000 – a -Background.

-

Implementing Error Handling with Stored Procedures in SQL 2000.

-
-

Why Error Handling?

-

Why do we have error handling in our code? There are many reasons. In a forms application we validate the user input and inform the users of their mistakes. These user mistakes are anticipated errors. But we also need to handle unanticipated errors. That is, errors that occur because we overlooked something when we wrote our code. A simple strategy is to abort execution or at least revert to a point where we know that we have full control. Whatever we do, simply ignoring an unanticipated error is something we should never permit us. This can have grave consequences and cause the application to present incorrect information to the user or even worse to persist incorrect data in the database. It is also important to communicate that an error has occurred, lest that the user thinks that the operation went fine, when your code in fact performed nothing at all.

-

In a database system, we often want updates to be atomic. For instance, say that the task is to transfer money from one account to another. To this end, we need to update two rows in the CashHoldings table and add two rows to the Transactions table. It's absolutely impermissible that an error or an interruption would result in money being deposited into the receiving account without it being withdrawn from the other. For this reason, in a database application, error handling is also about transaction handling. In this example, we need to wrap the operation in BEGIN TRANSACTION and COMMIT TRANSACTION, but not only that: in case of an error, we must make sure that the transaction is rolled back.

-

Essential Commands

-

We will start by looking at the most important commands that are needed for error handling. In Part Two, I cover all commands related to error and transaction handling.

-

TRY-CATCH

-

The main vehicle for error handling is TRY-CATCH, very reminiscent of similar constructs in other languages. The structure is:

-
BEGIN TRY
-   <regular code>
-END TRY
-BEGIN CATCH
-   <error handling>
-END CATCH
-

If any error occurs in <regular code>, execution is transferred to the CATCH block, and the error-handling code - is executed. Typically, your CATCH rolls back any open transaction and reraises the error, so that the calling client program understand that something went wrong. As for how to reraise the error, we will come to this later in this article.

-

Here is a very quick example:

-
BEGIN TRY
-   DECLARE @x int
-   SELECT @x = 1/0
-   PRINT 'Not reached'
-END TRY
-BEGIN CATCH 
-   PRINT 'This is the error: ' + error_message()
-END CATCH
-

The output:

-

This is the error: Divide by zero error encountered. -

-

We will return to the function error_message() later. It is worth noting that using PRINT in your CATCH handler is something you only would do when experimenting. You should never do so in real application code.

-

If <regular code> calls stored procedures or invokes triggers, any error that occurs in these will also transfer execution to the CATCH block. More exactly, when an error occurs, SQL Server unwinds the stack until it finds a CATCH handler, and if there isn't any, SQL Server sends the error message to the client.

-

There is one very important limitation with TRY-CATCH you need to be aware of: it does not catch compilation errors that occur in the same scope. Consider:

-
CREATE PROCEDURE inner_sp AS
-   BEGIN TRY
-      PRINT 'This prints'
-      SELECT * FROM NoSuchTable
-      PRINT 'This does not print'
-   END TRY
-   BEGIN CATCH
-      PRINT 'And nor does this print'
-   END CATCH
-go
-EXEC inner_sp
-

The output is:

-
-

This prints

-
-

Msg 208, Level 16, State 1, Procedure inner_sp, Line 4

-

Invalid object name 'NoSuchTable'.

-
-
-

As you see the TRY block is entered, but when the error occurs, execution is not transferred to the CATCH block as expected. This is true for all compilation errors such as missing columns, incorrect aliases etc that occur at run-time. (Compilation errors can occur at run-time in SQL Server due to deferred name resolution, a (mis)feature where SQL Server permits you to create a procedure that refers to non-existing tables.)

-

These errors are not entirely uncatchable; you cannot catch them in the scope they occur, but you can catch them in outer scopes. Add this code to the example above:

-
CREATE PROCEDURE outer_sp AS
-   BEGIN TRY
-      EXEC inner_sp
-   END TRY
-   BEGIN CATCH
-      PRINT 'The error message is: ' + error_message()
-   END CATCH
-go
-EXEC outer_sp
-

Now we get this output:

-

This prints -

-

The error message is: Invalid object name 'NoSuchTable'.

-
-

This time the error is caught because there is an outer CATCH handler.

-

SET XACT_ABORT ON

-

Your stored procedures should always include this statement in the beginning:

-
SET XACT_ABORT, NOCOUNT ON
-

This turns on two session options that are off by default for legacy reasons, but experience has proven that best practice is to always have them on. The default behaviour in SQL Server when there is no surrounding TRY-CATCH is that some errors abort execution and roll back any open transaction, whereas with other errors execution continues on the next statement. When you activate XACT_ABORT ON, almost all errors have the same effect: any open transaction is rolled back and execution is aborted. There are a few exceptions of which the most prominent is the RAISERROR statement.

-

The option XACT_ABORT is essential for a more reliable error and transaction handling. Particularly, with the default behaviour there are several situations where execution can be aborted without any open transaction being rolled back, even if you have TRY-CATCH. We saw one such example in the previous section where we learnt that TRY-CATCH does not catch compilations errors in the same scope. An open transaction which is not rolled back in case of an error can cause major problems if the application jogs along without committing or rolling back.

-

For good error handling in SQL Server, you need both TRY-CATCH and SET XACT_ABORT ON. Of these two, SET XACT_ABORT ON is the most important. For production-grade code it's not really sufficient to rely on XACT_ABORT, but for quick and simple stuff it can do.

-

The option NOCOUNT has nothing to do with error handling, but I included in order to show best practice. The effect of NOCOUNT is that it suppresses messages like (1 row(s) affected) that you can see in the Message tab in SQL Server Management Studio. While these row counts can be useful when you work interactively in SSMS, they can degrade performance in an application because of the increased network traffic. The row counts can also confuse poorly written clients that think they are real result sets.

-

Above, I've used a syntax that is a little uncommon. Most people would probably write two separate statements:

-
SET NOCOUNT ON
-SET XACT_ABORT ON
-

There is no difference between this and the above. I prefer the version with one SET and a comma since it reduces the amount of noise in the code. As these statements should appear in all your stored procedures, they should take up as little space as possible.

-

General Pattern for Error Handling

-

Having looked at TRY-CATCH and SET XACT_ABORT ON, let's piece it together to a pattern that we can use in all our stored procedures. To take it slow and gentle, I will first show an example where I reraise the error in a simple-minded way, and in the next section I will look into better solutions.

-

For the example, I will use this simple table.

-
CREATE TABLE sometable(a int NOT NULL,
-                       b int NOT NULL,
-                       CONSTRAINT pk_sometable PRIMARY KEY(a, b))
-

Here is a stored procedure that showcases how you should work with errors and transactions.

-
CREATE PROCEDURE insert_data @a int, @b int AS 
-   SET XACT_ABORT, NOCOUNT ON
-   BEGIN TRY
-      BEGIN TRANSACTION
-      INSERT sometable(a, b) VALUES (@a, @b)
-      INSERT sometable(a, b) VALUES (@b, @a)
-      COMMIT TRANSACTION
-   END TRY
-   BEGIN CATCH
-      IF @@trancount > 0 ROLLBACK TRANSACTION
-      DECLARE @msg nvarchar(2048) = error_message()  
-      RAISERROR (@msg, 16, 1)
-      RETURN 55555
-   END CATCH
-

The first line in the procedure turns on XACT_ABORT and NOCOUNT in single statement as I showed above. This line is the only line to come before BEGIN TRY. Everything else in the procedure should come after BEGIN TRY: variable declarations, creation of temp tables, table variables, everything. Even if you have other SET commands in the procedure (there is rarely a reason for this, though), they should come after BEGIN TRY.

-

The reason I prefer to have SET XACT_ABORT, NOCOUNT ON before BEGIN TRY is that I see this as one line of noise: it should always be there, but that I don't want it to strain my eyes. This is certainly a matter of preference, and if you prefer to put the SET commands after BEGIN TRY, that's alright. What is important is that you should never put anything else before BEGIN TRY.

-

The part between BEGIN TRY and END TRY is the main meat of the procedure. Because I wanted to include a user-defined transaction, I introduced a fairly contrived business rule which says that when you insert a pair, the reverse pair should also be inserted. The two INSERT statements are inside BEGIN and COMMIT TRANSACTION. In many cases you will have some lines code between BEGIN TRY and BEGIN TRANSACTION. Sometimes you will also have code between COMMIT TRANSACTION and END TRY, although that is typically only a final SELECT to return data or assign values to output parameters. If your procedure does not perform any updates or only has a single INSERT/UPDATE/DELETE/MERGE statement, you typically don't have an explicit transaction at all.

-

Whereas the TRY block will look different from procedure to procedure, the same is not true for the CATCH block. Your CATCH blocks should more or less be a matter of copy and paste. That is, you settle on something short and simple and then use it all over the place without giving it much thinking. The CATCH handler above performs three actions:

-
    -
  1. Rolls back any open transaction.
    2. -
  2. Reraises the error.
    3. -
  3. Makes sure that the return value from the stored procedure is non-zero.
    4. -
-

These actions should always be there. Always. You may argue that the line

-
IF @@trancount > 0 ROLLBACK TRANSACTION
-

is not needed if there no explicit transaction in the procedure, but nothing could be more wrong. Maybe you call a stored procedure which starts a transaction, but which is not able to roll it back because of the limitations of TRY-CATCH. Maybe you or someone else adds an explicit transaction to the procedure two years from now. Will you remember to add the line to roll back then? Don't count on it. I can also hear readers that object if the caller started the transaction we should not roll back.... Yes, we should, and if you want to know why you need to read Parts Two and Three. Always rolling back the transaction in the CATCH handler is a categorical imperative that knows of no exceptions.

-

The code for reraising the error includes this line:

-
DECLARE @msg nvarchar(2048) = error_message()
-

The built-in function error_message() returns the text for the error that was raised. On the next line, the error is reraised with the RAISERROR statement. This is an unsophisticated way to do it, but it does the job. We will look at alternatives in the next chapter.

-

Note: the syntax to give variables an initial value with DECLARE was introduced in SQL 2008. If you are on SQL 2005, you will need to split the line in one DECLARE and one SELECT statement.

-

Always reraise? What if you only want to update a row in a table with the error message? Yes, that is a situation that occurs occasionally, although you would typically do that in an inner CATCH block which is part of a loop. (I have a longer example demonstrating this in Part Three.) The outer CATCH block in a procedure is exactly for catching and reraising unexpected errors you did not foresee. Dropping these errors on the floor is a criminal sin. They must be reraised.

-

The final RETURN statement is a safeguard. Recall that RAISERROR never aborts execution, so execution will continue with the next statement. As long as all procedures are using TRY-CATCH and likewise all client code is using exception handling this is no cause for concern. But your procedure may be called from legacy code that was written before SQL 2005 and the introduction of TRY-CATCH. In those days, the best we could do was to look at return values. What you return does not really matter, as long as it's a non-zero value. (Zero is usually understood as success.)

-

The last statement in the procedure is END CATCH. You should never have any code after END CATCH for the outermost TRY-CATCH of your procedure. For one thing, anyone who is reading the procedure will never see that piece of code.

-

Having read all the theory, let's try a test case:

-
EXEC insert_data 9, NULL
-

The output is:

-
-

Msg 50000, Level 16, State 1, Procedure insert_data, Line 12

-

- Cannot insert the value NULL into column 'b', table 'tempdb.dbo.sometable'; column does not allow nulls. INSERT fails.

-
-

Let's add an outer procedure to see what happens when an error is reraised repeatedly:

-
CREATE PROCEDURE outer_sp @a int, @b int AS
-   SET XACT_ABORT, NOCOUNT ON
-   BEGIN TRY
-      EXEC insert_data @a, @b
-   END TRY
-   BEGIN CATCH
-      IF @@trancount > 0 ROLLBACK TRANSACTION
-      DECLARE @msg nvarchar(2048) = error_message()
-      RAISERROR (@msg, 16, 1)
-      RETURN 55555
-   END CATCH
-go
-EXEC outer_sp 8, 8
-

The output is:

-
-

Msg 50000, Level 16, State 1, Procedure outer_sp, Line 9

-

Violation of PRIMARY KEY constraint 'pk_sometable'. Cannot insert duplicate key in object 'dbo.sometable'. The duplicate key value is (8, 8).

-
-

We get the correct error message, but if you look closer at the headers of this message and the previous, you may note a problem:

-
-

Msg 50000, Level 16, State 1, Procedure insert_data, Line 12

-

Msg 50000, Level 16, State 1, Procedure outer_sp, Line 9

-
-

The error messages give the location of the final RAISERROR statement that was executed. In the first case, only the line number is wrong. In the second case, the procedure name is incorrect as well. For simple procedures like our test procedures, this is not a much of an issue, but if you have several layers of nested complex stored procedures, only having an error message but not knowing where it occurred makes your troubleshooting a lot more difficult. For this reason, it is desirable to reraise the error in such a way that you can locate the failing piece of code quickly, and this is what we will look at in the next chapter.

-

Three Ways to Reraise the Error

-

Using error_handler_sp

-

We have seen error_message(), which returns the text for an error message. An error message consists of several components, and there is one error_xxx() function for each one of them. We can use this to reraise a complete message that retains all the original information, albeit with a different format. Doing this in each and every CATCH handler would be a gross sin of code duplication, and there is no reason to. You don't have to be in the CATCH block to call error_message() & co, but they will return exactly the same information if they are invoked from a stored procedures that your CATCH block calls.

-

Let me introduce to you error_handler_sp:

-
CREATE PROCEDURE error_handler_sp AS
- 
-   DECLARE @errmsg   nvarchar(2048),
-           @severity tinyint,
-           @state    tinyint,
-           @errno    int,
-           @proc     sysname,
-           @lineno   int
-           
-   SELECT @errmsg = error_message(), @severity = error_severity(),
-          @state  = error_state(), @errno = error_number(),
-          @proc   = error_procedure(), @lineno = error_line()
-       
-   IF @errmsg NOT LIKE '***%'
-   BEGIN
-      SELECT @errmsg = '*** ' + coalesce(quotename(@proc), '<dynamic SQL>') + 
-                       ', Line ' + ltrim(str(@lineno)) + '. Errno ' + 
-                       ltrim(str(@errno)) + ': ' + @errmsg
-   END
-   RAISERROR('%s', @severity, @state, @errmsg)
-

The first thing error_handler_sp does is to capture the value of all the error_xxx() functions into local variables. (Exactly what all these mean, is something I am not covering in this introductory article, but I leave that for Part Two.) I will return to the IF statement in a second. Instead let's first look at the SELECT statement inside of it:

-
SELECT @errmsg = '*** ' + coalesce(quotename(@proc), '<dynamic SQL>') + 
-                 ', Line ' + ltrim(str(@lineno)) + '. Errno ' + 
-                 ltrim(str(@errno)) + ': ' + @errmsg
-

The purpose of this SELECT statement is to format an error message that we pass to RAISERROR, and which includes all information in the original error message which we cannot inject directly into RAISERROR. We need to give special treatment to the procedure name, since it will be NULL for errors that occur in ad-hoc batches or in dynamic SQL. Whence the use of the coalesce() function. (If you don't really understand the form of the RAISERROR statement, I discuss this in more detail in Part Two.)

-

The formatted error message starts with three asterisks. This serves two purposes: 1) We can directly see that this is a message reraised from a CATCH handler. 2) This makes it possible for error_handler_sp to filter out errors it has reraised once or more already with the condition NOT LIKE '***%' to avoid that error messages get modified a second time.

-

Here is how a CATCH handler should look like when you use error_handler_sp:

-
BEGIN CATCH
-   IF @@trancount > 0 ROLLBACK TRANSACTION
-   EXEC error_handler_sp
-   RETURN 55555
-END CATCH
-

Let's try some test cases.

-
EXEC insert_data 8, NULL
-EXEC outer_sp 8, 8
-

This results in:

-
-

Msg 50000, Level 16, State 2, Procedure error_handler_sp, Line 20

-

*** [insert_data], Line 5. Errno 515: Cannot insert the value NULL into column 'b', table 'tempdb.dbo.sometable'; column does not allow nulls. INSERT fails.

-

Msg 50000, Level 14, State 1, Procedure error_handler_sp, Line 20

-

*** [insert_data], Line 6. Errno 2627: Violation of PRIMARY KEY constraint 'pk_sometable'. Cannot insert duplicate key in object 'dbo.sometable'. The duplicate key value is (8, 8).

-
-

The header of the messages say that the error occurred in error_handler_sp, but the texts of the error messages give the original location, both procedure name and line number.

-

I will present two more methods to reraise errors. However, error_handler_sp is my main recommendation for readers who only read this part. It's simple and it works on all versions of SQL Server from SQL 2005 and up. There is really only one drawback: in some situations SQL Server raises two error messages, but the error_xxx() functions return only information about one of them, why one of the error messages is lost. This can be quite difficult with administrative commands like BACKUP/RESTORE, but it is rarely an issue in pure application code.

-

Using ;THROW

-

In SQL 2012, Microsoft introduced the ;THROW statement to make it easier to reraise errors. Unfortunately, Microsoft made a serious design error with this command and introduced a dangerous pitfall.

-

With ;THROW you don't need any stored procedure to help you. Your CATCH handler becomes as simple as this:

-
BEGIN CATCH
-   IF @@trancount > 0 ROLLBACK TRANSACTION
-   ;THROW
-   RETURN 55555
-END CATCH
-

The nice thing with ;THROW is that it reraises the error message exactly as the original message. If there were two error messages originally, both are reraised which makes it even better. As with all other errors, the errors reraised by ;THROW can be caught in an outer CATCH handler and reraised. If there is no outer CATCH handler, execution is aborted, so that RETURN statement is actually superfluous. (I still recommend that you keep it, in case you change your mind on ;THROW later.)

-

If you have SQL 2012 or later, change the definition of insert_data and outer_sp, and try the tests cases again. The output this time:

-
-
-

Msg 515, Level 16, State 2, Procedure insert_data, Line 5

-

Cannot insert the value NULL into column 'b', table 'tempdb.dbo.sometable'; column does not allow nulls. INSERT fails.

-

Msg 2627, Level 14, State 1, Procedure insert_data, Line 6

-

Violation of PRIMARY KEY constraint 'pk_sometable'. Cannot insert duplicate key in object 'dbo.sometable'. The duplicate key value is (8, 8).

-
-

The procedure name and line number are accurate and there is no other procedure name to confuse us. Also, the original error numbers are retained.

-

At this point you might be saying to yourself: he must be pulling my legs, did Microsoft really call the command ;THROW? Isn't it just THROW? True, if you look it up in Books Online, there is no leading semicolon. But the semicolon must be there. Officially, it is a terminator for the previous statement, but it is optional, and far from everyone uses semicolons to terminate their T‑SQL statements. More importantly, if you leave out the semicolon before THROW this does not result in a syntax error, but in a run-time behaviour which is mysterious for the uninitiated. If there is an active transaction you will get an error message – but a completely different one from the original. Even worse, if there is no active transaction, the error will silently be dropped on the floor. Something like mistakenly leaving out a semicolon should not have such absurd consequences. To reduce the risk for this accident, always think of the command as ;THROW.

-

It should not be denied that ;THROW has its points, but the semicolon is not the only pitfall with this command. If you want to use it, I encourage you to read at least Part Two in this series, where I cover more details on ;THROW. Until then, stick to error_handler_sp.

-

Using SqlEventLog

-

The third way to reraise an error is to use SqlEventLog, which is a facility that I present in great detail in Part Three. Here I will only give you a teaser.

-

SqlEventLog offers a stored procedure slog.catchhandler_sp that works similar to error_handler_sp: it uses the error_xxx() functions to collect the information and reraises the error message retaining all information about it. In addition, it logs the error to the table slog.sqleventlog. Depending on the type of application you have, such a table can be a great asset.

-

To use SqlEventLog, your CATCH hander would look like this:

-
BEGIN CATCH
-   IF @@trancount > 0 ROLLBACK TRANSACTION
-   EXEC slog.catchhandler_sp @@procid
-   RETURN 55555
-END CATCH
-

@@procid returns the object id of the current stored procedure, something that SqlEventLog uses when it writes the log information to the table. Using the same test cases, this is the output with catchhandler_sp:

-
-
-

Msg 50000, Level 16, State 2, Procedure catchhandler_sp, Line 125

-

{515} Procedure insert_data, Line 5

-

Cannot insert the value NULL into column 'b', table 'tempdb.dbo.sometable'; column does not allow nulls. INSERT fails.

-

Msg 50000, Level 14, State 1, Procedure catchhandler_sp, Line 125

-

{2627} Procedure insert_data, Line 6

-

Violation of PRIMARY KEY constraint 'pk_sometable'. Cannot insert duplicate key in object 'dbo.sometable'. The duplicate key value is (8, 8). -

-
-

As you see, the error messages from SqlEventLog are formatted somewhat differently from error_handler_sp, but the basic idea is the same. Here is a sample of what is logged to the table slog.sqleventlog:

-
-

logid logdate                 errno  severity logproc     linenum msgtext

-

----- ----------------------- ------ -------- ----------- ------- -----------------

-

1     2015-01-25 22:40:24.393 515    16       insert_data 5       Cannot insert ...

-

2     2015-01-25 22:40:24.395 2627   14       insert_data 6       Violation of ...

-
-

If you want to play with SqlEventLog right on the spot, you can download the file sqleventlog.zip. For installation instructions, see the section Installing SqlEventLog in Part Three.

-

Final Remarks

-

You have now learnt a general pattern for error and transaction handling in stored procedures. It is not perfect, but it should work well for 90-95 % of your code. There are a couple of limitations you should be aware of:

-
    -
  1. As we have seen, compilation errors such as missing tables or missing columns cannot be trapped in the procedure where they occur, only in outer procedures.
    2. -
  2. The pattern does not work for user-defined functions, since neither TRY-CATCH nor RAISERROR are permitted there.
    3. -
  3. When you call a stored procedure on a linked server that raises - an error, this error may bypass the error handler in the procedure on the - local server and go to directly to the client.
    4. -
  4. When a procedure is called by INSERT-EXEC, you will get an ugly error, because ROLLBACK TRANSACTION is - not permitted in this case.
    5. -
  5. As noted above, if you use error_handler_sp or SqlEventLog, you will lose one error message when SQL Server raises two error messages for the same error. This is not an issue with ;THROW.
    6. -
-

I cover these situations in more detail in the other articles in the series.

-

Before I close this off, I like to briefly cover triggers and client code.

-

Triggers

-

The pattern for error handling in triggers is not any different from error handling in stored procedures, except in one small detail: you should not include that RETURN statement. (Because RETURN with a value is not permitted in triggers.)

-

What is important to understand about triggers is that they are part of the command that fired the trigger, and in a trigger you are always in a transaction, even if you did not use BEGIN TRANSACTION. Sometimes I see people in SQL Server forums ask if they can write a trigger that does not roll back the command that fired the trigger if the trigger fails. The answer is that there is no way that you can do this reliably, so you better not even try. If you have this type of requirement, you should probably not use a trigger at all, but use some other solution. In Parts Two and Three, I discuss error handling in triggers in more detail. -

-

Client Code

-

Yes, you should have error handling in client code that accesses the database. That is, you should always assume that any call you make to the database can go wrong. Exactly how to implement error handling depends on your environment, and to cover all possible environments out there, I would have to write a couple of more articles. And learn all those environments.

-

Here, I will only point out one important thing: your reaction to an error raised from SQL Server should always be to submit this batch to avoid orphaned transactions:

-
IF @@trancount > 0 ROLLBACK TRANSACTION
-

This also applies to the famous message Timeout expired (which is not a message from SQL Server, but the client API).

-

I cover error handling in ADO .NET in the last chapter of Part 3. If you use old ADO, I cover this in my old article on error handling in SQL 2000.

-

End of Part One

-

This is the end of Part One of this series of articles. If you just wanted to learn the pattern quickly, you have completed your reading at this point. If your intention is to read it all, you should continue with Part Two which is where your journey into the confusing jungle of error and transaction handling in SQL Server will begin for real.

-

If you have questions, comments or suggestions specific to this article, please feel free to contact me at esquel@sommarskog.se. This includes small things like spelling errors, bad grammar, errors in code samples etc. Since I don't have a publisher, I need to trust my readership to be my tech editors and proof-readers. :-) If you have questions relating to a problem you are working with, I recommend that you ask that question in a public forum, as this is more likely to give you a quick response.

-

For a list of acknowledgements, please see the end of Part Three. Below is a revision history for Part One.

-

...and don't forget to add this line first in your stored procedures:

-
SET XACT_ABORT, NOCOUNT ON
-

Revision History

-
-
2015-05-03
-
First version.
-
-

Back to my home page.

- - - \ No newline at end of file diff --git a/Articles/Giving Permissions through Stored Procedures.htm b/Articles/Giving Permissions through Stored Procedures.htm deleted file mode 100644 index e784acc6..00000000 --- a/Articles/Giving Permissions through Stored Procedures.htm +++ /dev/null @@ -1,2513 +0,0 @@ - - - - -Giving Permissions through Stored Procedures - - - - - -

Giving Permissions through Stored Procedures
-Ownership Chaining, Certificates and the Problematic EXECUTE AS

-

- An SQL text by Erland - Sommarskog, SQL Server MVP. Latest Revision - 2011-12-31. -

- -

Introduction

-

When designing an application for SQL Server, you rarely want users to have - full permissions to access the tables in the database. Many applications are - designed to perform all database access through stored procedures, and it is - through the stored procedures users can access and update data. The - procedures perform validations of business rules to protect the integrity of - the database.

-

In this article I will in depth discuss three different ways to achieve this:

-
    -
  1. Ownership Chaining.
    2. -
  2. Signing Procedures with Certificates.
    3. -
  3. Using impersonation with EXECUTE AS.
    4. -
-

I will also briefly cover three other ways:

-
    -
  1. Application roles
    2. -
  2. "Application - proxies"
    3. -
  3. Terminal Server.
    4. -
-

This article applies to SQL 2005 SP2 and later. Particularly, there were - some bugs and limitations in the RTM version of SQL 2005, that I don't touch, as - there is no reason why you should be running SQL 2005 RTM or SP1. (And for that - matter, SP2. You should have installed at least Service Pack 3 by now, if not -SP4.) If you are using SQL 2000, you should know that this article focuses on features added in SQL 2005.

-

Table of Contents

-

-   Introduction
-      Overview
-      Notes on the Example Scripts
-   Some Philosophy on Security
-   Owner/Schema Separation
-      Statements
-      Creating Objects in a Schema
-   Ownership Chaining
-      How it Works
-      Example of Ownership Chaining
-      Not All Permissions are Transferable through Ownership Chaining
-      Dynamic SQL
-      CLR Modules
-      Cross-Database Access
-   Signing Procedures with Certificates
-      Using Certificates within a Database
-      Creating the Certificate
-      Creating the Certificate User
-      Granting Rights to the Certificate User
-      Signing the Procedure
-      Putting it All Together
-      Who's Who?
-      Using Certificates with Bulk Copy
-      Full Example for Bulk-load
-      CREATE CERTIFICATE FROM BINARY in SQL 2012
-      Cross-Database Access
-      Counter Signatures
-      Using Asymmetric Keys
-      Which Procedures are Signed by Which Certificates?
-      Managing Certificates and Passwords
-   Impersonation with EXECUTE AS
-      The Statement EXECUTE AS
-      Using EXECUTE AS to Grant Permissions within the Database
-      The Side Effects of EXECUTE AS
-      WITH EXECUTE AS CALLER | SELF | OWNER
-      The EXECUTE AS CALLER statement
-      original_login()
-      SET CONTEXT_INFO
-      Using DDL Triggers to Stop All This
-      EXECUTE AS and Monitoring
-      EXECUTE AS and Access Outside the Database
-      Using EXECUTE AS to Give Bulk-Copy Permissions
-      Considerations on TRUSTWORTHY
-      Cross-Database Access
-      Starting Jobs
-      Yet another Side Effect – WindowsIdentity
-   Other Methods
-      Application Roles
-      "Application Proxies"
-      Terminal Server
-   Final Words
-   Acknowledgments and Feedback
-   Revision History

-

Overview

- -

The classic method for granting permissions through stored procedures is - - ownership chaining. This is the prime method for plain table - access, but there are permissions that are not grantable through ownership chaining. Two such cases that we will look at in this - article are - dynamic SQL and reloading a table through BULK INSERT. Due to its importance, ownership - chaining is the first mechanism that I will cover in this article. - However, before that I will discuss owner/schema-separation, - a change in SQL 2005 that may boggle the mind of old-time users of SQL Server and which - has some effects on ownership chaining.

-

- SQL 2005 introduced two new methods to give users access through stored - procedures: you can sign procedures with certificates, - and you can use impersonation with the EXECUTE AS clause. - Both these methods permit you to encapsulate any permission in a stored - procedure. Certificates are more complex to use, whereas EXECUTE AS can be - deceivingly simple. To wit, EXECUTE AS has some side effects that can be - nasty. If you are a developer, this text tries to make you aware of what harm - casual use of EXECUTE AS could cause. And if you are a DBA, this - article warns you of what creative developers can inflict to your database with EXECUTE AS.

-

Whereas the above-mentioned methods can be applied to individual procedures, - application roles, "application proxies" -and Terminal Server are - solutions that you typically use on an application-wide scale. (I have put "application proxy" in - quotes throughout the article, as this is a term that I've coined myself and - it may not be established terminology.)

-

Notes on the Example Scripts

-

This article includes several example scripts that demonstrate the various - methods. Before you start to run these scripts all over town, I like to point - out a few things.

-

All these scripts assume that you are logged in with sysadmin rights, - and I strongly recommend that you run the examples on a development machine. - Some scripts assume that you have enabled xp_cmdshell, which is - disabled by default. Enable it with sp_configure, if this is acceptable with your local security policy. - The use of xp_cmdshell is mainly for convenience, and it is not - required to demonstrate the essentials of the examples. You can perform - those actions manually if needed.

-

- Furthermore, all scripts create at least one database and at least one login. - Some scripts also create files in the file system. If the scripts run - uninterrupted, all objects are dropped at the end; logins, - databases and files alike. (So first check that you don't have any database - with names that coincide with the databases in the scripts!)

-

The reason the scripts create databases is simplicity. That permits me to - create objects, users etc in the database, and clean up all by dropping the - database. The scripts create logins because it's difficult to - demonstrate security features when running as sysadmin.

-

To contain everything into one script, I make heavily use of the -EXECUTE - AS and REVERT statements, although it will take until the second half of the - article before I discuss them in detail. For now, just think of them as an - alternative to open a second query window to run as a test user. If you - prefer, you can stop the scripts at EXECUTE AS, log into a second query - window as the test user to run the part up to REVERT.

-

Some Philosophy on Security

-

Before I go on to the main body of this text, I would like to make a short digression - about security in general.

-

Security is often in - conflict with other interests in the programming trade. You have users screaming - for a solution, and they want it now. At this point, they don't really care - about security, they just want to get their business done. But if you give them a - solution that has a hole, and that hole is later exploited, you are the one - that will be hung. So as a programmer you - always need to have security in mind, and make sure that you play your part right

-

One common mistake in security is to think "we have this - firewall/encryption/whatever, so we are safe". I like to think of security of - something that consists of a number of defence lines. - Anyone who has worked with computer systems knows that there are a lot of changes - in them, both in their configuration and in the program code. Your initial design - may be sound and safe, but as the system evolves, there might suddenly be a - security hole and a serious vulnerability in your system.

-

By having multiple lines of defence you can reduce the risk for this to happen. - If a hole is opened, you can reduce the impact of what is possible to do - through that hole. An integral part of this strategy is to never - grant more permissions than is absolutely necessary. Exactly what this means in this - context is something I shall return to.

-

Owner/Schema Separation

-

Before we look at any of the methods to grant permissions, we need to look at - a change in SQL 2005 which can be a bit breath-taking to users coming from -older versions of SQL Server.

-

Since the dawn of time, SQL Server have permitted a four-part notation of - objects, and it has usually been presented as

-
server.database.owner.object
-

But in SQL 2005 this changed to

-
server.database.schema.object
-

You may ask, what is this schema? The answer is that schema has - always been there, but up to SQL 2000, schema and owner was always the same. - In SQL 2005 owner and schema are two different entities.

-

The purpose of a schema is simple to understand: it permits you to have - different namespaces in database. Say that for a larger application, there - are several groups that work more or less independently. Each group could - have their own schema for their specific objects to avoid name clashes. - While you could do this in SQL 2000 as well, the fact that all schemas had - different owners, made this unpractical. In SQL 2005 all schemas can have the - same owner.

-

An example of a database with several schemas is the -AdventureWorks - database; the database which Microsoft use for all their samples since SQL 2005.

-

SQL Server comes with no less than 13 pre-defined schemas. That's a lot, but - ten of them exist solely for backwards compatibility, and they are namesakes - with predefined users and roles in SQL 2000. (Since users and roles also were - schemas in SQL 2000, Microsoft figured that there could be applications using them.) You can drop the nine - schemas that stem from roles (db_owner etc) - from your database, and if you drop them from the model database, the - schemas will not appear in new databases. For some reason you cannot drop the - guest schema.

-

Two schemas, sys and INFORMATION_SCHEMA, -are reserved for system objects, and you cannot create objects in these schemas.

-

Finally, there is the dbo schema, which is the only predefined schema - you normally create objects in. The tacky name is short for database owner, - and is a heritage from the previous days of owner/schema-unification.

-

Statements

-

There are several statements related to schemas and users, and I will give a brief -overview here to point out the differences between the new commands added in SQL 2005, and the older system procedures from previous versions.

-

To create a schema, you use not surprisingly CREATE SCHEMA, and most often - you just say like:

-
CREATE SCHEMA myschema
-

CREATE SCHEMA is one of these statements that must be alone in batch. That is, - no statements can precede or follow it. That may seem a little funny for such - a simple command, but there is an older form of CREATE SCHEMA which is more - complex that was - introduced in SQL 6.5 and which serves a different purpose. (Please see Books Online for details, if you really want to know.)

-

The preferred way to create a user since SQL 2005 is:

-
CREATE USER newuser [WITH DEFAULT_SCHEMA = someschema]
-

There are two system procedures to create users, sp_adduser and -sp_grantdbaccess. They are both deprecated and will be removed eventually. There is an important difference between CREATE USER and -the two system procedures: CREATE USER creates a user whose default schema is dbo, - unless you specify otherwise. On the other hand, sp_adduser - and sp_grantdbaccess - for compatibility reasons - perform the corresponding to:

-
CREATE SCHEMA newuser
-go
-CREATE USER newuser WITH DEFAULT_SCHEMA = newuser
-go
-ALTER AUTHORIZATION ON SCHEMA::newuser TO newuser
-

(The last command makes newuser owner of the schema created in his - name.) Most likely, you don't need that schema, so there is - good reason to avoid these old system procedures entirely. -CREATE USER also has some - options not offered by sp_adduser and sp_grantdbaccess. For -instance, you can say:

-
CREATE USER thisdbonly WITHOUT LOGIN
-

This creates a database user that is not tied to a login. In some of the the test scripts, I use this option -to create test users, but you will also see examples where WITHOUT LOGIN can be -used to create a user that is a container for a certain permission. We will look -at other options later in this article.

-

There is also CREATE ROLE that replaces sp_addrole in the same vein that CREATE USER - replaces sp_adduser. That is, CREATE ROLE creates the role only. - sp_addrole also creates a schema that you are unlikely to have any need - for. And while we are at it, there is a CREATE LOGIN -which replaces - sp_addlogin. As with CREATE USER, CREATE LOGIN has some new options, that we will come back to - later in this article.

-

Finally, there is DROP USER instead of sp_dropuser - etc. A little note here: if you have users created with sp_addlogin or -sp_grantdbaccess, sp_dropuser is the most convenient way to drop them, since there is a schema that needs to be dropped before you can drop -the user, and DROP USER will not do that for you.

-

Creating Objects in a Schema

-

If you create objects in a schema that is owned by another user, the - schema owner will be the owner of the objects you create, not you. - Thus, if you give a user permission to create objects in a schema you own, - but no other permissions in the schema, he will not be able to access the - objects he creates.

-

This can be a bit of a surprise, but it's actually logical. Assume that all - developers of an application have their own user, while they create objects in a - common schema. For ownership chaining to work (which we look at in a second), all objects must have the same - owner, so it much simpler if all objects are owned by the schema owner from - the start. Else you would constantly have to change the ownership of the procedures.

-

Ownership Chaining

-

How it Works

-

Ownership chaining is the classical way of giving users access to objects - through stored procedures in SQL Server. And while SQL Server provides two - other methods, ownership chaining is what you will use 99 % of the time. - Certificates and impersonation is something you only have reason to use when - ownership chaining does not do the job.

-

How does ownership chaining work? Say that you have a procedure sp1 - owned by user A. sp1 performs a SELECT from tbl1 and tbl2. - tbl1 is owned by A, whereas tbl2 is owned by user B. User C has - permission to execute sp1. To be able run this procedure successfully, - C needs SELECT permission on tbl2 but not - on tbl1. Since - sp1 and tbl1 have the same owner, the permission check is suppressed, and this is ownership - chaining. Ownership chaining is also in effect in triggers, - user-defined functions and views.

-

Now, this may seem a little complex to grasp, but in real life it is often a - lot simpler. In my experience, having several object owners in a database is - not very common. In very many cases, dbo, the database owner, owns all - objects in a database. A common way to implement security in a database - application is to perform all access - through stored procedures that validates input parameters, enforces business - rules etc. When dbo owns all procedures and tables, users only need permissions to execute the - stored procedures. Thanks to ownership chaining, they do not need any direct - permissions on the tables. But as we will learn soon, there are permissions - that cannot be transferred through ownership chaining.

-

Note: in older versions of SQL Server, applications might have used different object owners in order to implement different namespaces, that is schemas. But since -in SQL 2005, dbo can own all schemas, this should no longer be necessary.

-

Example of Ownership Chaining

-

Here is an example script that demonstrates ownership chaining. Despite what - I said in the previous section about dbo owning everything, the - example includes two objects owned by other users, to demonstrate what - happens when the ownership chain is broken.

-

(Please refer to the introductory note about - the example scripts in this article.)

-
USE master
-go
--- Create a test user and a test database.
-CREATE LOGIN testuser WITH PASSWORD = 'TesT=0=UsEr'
-CREATE DATABASE ownershiptest
-go
--- Move to the test database.
-USE ownershiptest
-go
--- Create a user to run the tests.
-CREATE USER testuser
-go
--- Create two database-only users that will own some objects.
-CREATE USER procowner WITHOUT LOGIN
-CREATE USER tableowner WITHOUT LOGIN
-go
--- Create three test tables. As this is an example to demonstrate
--- permissions, we don't care about adding any data to them.
-CREATE TABLE tbl1 (a int NOT NULL)
-CREATE TABLE tbl2 (b int NOT NULL)
-CREATE TABLE tbl3 (c int NOT NULL)
-go
--- Make the user tableowner owner of tbl3.
-ALTER AUTHORIZATION ON tbl3 TO tableowner
-go
--- Create a couple of stored procedures.
-CREATE PROCEDURE sp1 AS
-   SELECT a FROM tbl1
-go
-CREATE PROCEDURE sp2inner AS
-   SELECT a FROM tbl1
-go
-CREATE PROCEDURE sp2 AS
-   SELECT b FROM tbl2
-   EXEC sp2inner
-go
-CREATE PROCEDURE sp3 AS
-   SELECT c FROM tbl3
-go
-CREATE PROCEDURE sp2procowner AS
-   SELECT b FROM tbl2
-   EXEC sp2inner
-go
--- Make procowner the owner of sp2procowner.
-ALTER AUTHORIZATION ON sp2procowner TO procowner
-go
--- Grant permissions to testuser to execute all procedures,
--- except for sp2inner.
-GRANT EXECUTE ON sp1 TO testuser
-GRANT EXECUTE ON sp2 TO testuser
-GRANT EXECUTE ON sp2procowner TO testuser
-GRANT EXECUTE ON sp3 TO testuser
-go
--- Run some commands as testuser, with its permissions etc.
-EXECUTE AS LOGIN = 'testuser'
-go
--- sp1 runs fine, as dbo owns both sp1 and tbl1.
-PRINT 'EXEC sp1, this runs fine'
-EXEC sp1
-go
--- Also sp2 runs fine. Note that testuser can run sp2inner, when
--- it's called from sp2. Ownership chaining applies here as well.
-PRINT 'EXEC sp2, this runs fine, despite no priv on sp2inner'
-EXEC sp2
-go
--- But sp2procowner fails twice. Because sp2procowner has a different
--- owner than tbl2 and sp2inner, testuser would need direct permission on
--- these objects, but he hasn't.
-PRINT 'EXEC sp2procowner, two permission errors'
-EXEC sp2procowner
-go
--- And this fails as well, because while sp3 is owned by dbo, tbl3 is
--- owned by another user, so ownership chaining is broken.
-PRINT 'EXEC sp3, permission error'
-EXEC sp3
-go
--- Stop being tester and clean up.
-REVERT
-go
-USE master
-go
-DROP LOGIN testuser
-DROP DATABASE ownershiptest
-

Not All Permissions are Transferable through Ownership Chaining

-

Since ownership chaining is so commonly used, and works so smoothly when all - objects are owned by dbo, it often comes as a surprise when users get - a permission error when they run a stored procedure.

-

The story is that ownership chaining does not apply to all statements. Essentially, ownership - chaining applies to DML statements (SELECT, INSERT, DELETE, UPDATE and MERGE) and - EXECUTE of stored procedures and functions. If you put a statement like - CREATE TABLE into a stored procedure, the user must have permissions to - create tables (which a plain user rarely has, save for temp tables). Same - goes for many other administrative commands.

-

A statement that is worth special mention here is TRUNCATE TABLE, which - logically is a DML statement; a quicker way to - delete all rows in a table. But the permissions for this command are not - transferable through ownership chaining, so if you want to write a stored - procedure to permits users to empty a table, you may prefer to use DELETE - although this is less efficient.

-

Another example of a command where ownership chaining does not work is BULK - INSERT; this command requires a server-level permission.

-

These are situations that can be resolved by signing - procedures with certificates or by using impersonation with EXECUTE AS, methods that we - shall look - into later in this article.

-

Dynamic SQL

-

Another case where ownership chaining does not work is dynamic SQL. Consider:

-
CREATE PROCEDURE myproc AS
-   EXEC('SELECT a, b FROM tbl')
-

(This is certainly not how you would use dynamic SQL in real life, but I - wanted to keep the example short. Please see my article - The Curse and Blessings of Dynamic SQL for - a longer discussion on dynamic SQL, when to use it – and when to not.)

-

To run this procedure, a user needs SELECT permissions on tbl. The - reason for this is that the batch of dynamic SQL is a scope of its own that - is - not part of the stored procedure. And this batch does not really have any - owner at all, and thus the ownership chain is broken.

-

Since dynamic SQL is very powerful for some tasks – dynamic search conditions - being the prime example – it was not uncommon in SQL 2000 -and earlier version to give users - SELECT rights, as long as this was compliant with corporate - security policy. But since SQL 2005 this is not necessary; -you can use - procedure signing and - impersonation to give users permission to execute dynamic - SQL.

-

CLR Modules

-

In SQL Server you can write stored procedures, - triggers and user-defined functions in a CLR language such as C# or Visual - Basic. You can perform data access from a CLR module by running a batch of SQL - statements, but ownership chaining does not apply in this case. The reason - for this is the same as with dynamic SQL: the SQL batch is a scope of its own that does not have any owner.

-

So when you write CLR modules that accesses tables, -you must either grant the users direct - permissions to these tables or employ module signing or impersonation. I am -not covering how to use these mechanisms with CLR modules in this article, but -the topic Module Signing in Books Online includes an example.

-

Cross-Database Access

-

If a stored procedure sp1 in database A accesses a table - tbl2 in database B, ownership chaining can apply as - well, if the procedure owner also owns tbl2. In - the trivial case, the two databases have the same owners and all involved - objects are owned by dbo. The user running sp1 must also be a - user in database B. (Unless you have enabled access for the guest user - in database B, something I don't recommend.)

-

However, starting with SQL 2000 SP3, ownership - chaining across databases is turned off by default. You can enable it on - server level, or per database. To enable it on server level, set the configuration option cross db - ownership chaining to 1 (with sp_configure or through SQL Server - Management Studio). Now all databases on the server will be open for cross-db - chaining.

-

To open an individual database for cross-db chaining, use the command - ALTER DATABASE db SET DB_CHAINING ON. In the example above, both A and B must - be enabled for DB chaining for users being able to access B..tbl2 - through sp1 without any own permission on tbl2. To enable a database for - chaining, you need sysadmin privileges.

-

As you might guess, there is a reason for database chaining being off by - default. Assume that Jack and Jill - own one database each. Jack is a user in Jill's database, but he only has - permissions to run a few stored procedures there. If their databases are - enabled for database chaining, Jack can get to Jill's inner secrets, by taking the following - steps.

-
    -
  1. Add Jill as a user in his own database.
    2. -
  2. Create a schema in his database owned by Jill.
    3. -
  3. Create stored procedures in the Jill schema that accesses Jill's - database. Since Jill owns the schema, she also owns the procedures, as - noted above. (Jack could also create the - procedures - in the dbo schema, and then make Jill - owner of those procedures.)
    4. -
-

Jack can now access all tables in Jill's database as he likes.

-

Microsoft are very discouraging about turning on database chaining, but for a - server that hosts a single application that uses several databases, turning - on database chaining on server level appears uncontroversial. It's a - different thing on a consolidated server that hosts databases for many - unrelated applications. Here, you should most probably never turn on the - configuration option to open DB chaining for all databases. What if a user who owns two databases asks you - to turn on - chaining on these databases? As long it's only those two, it's fine, but then - the next guy comes with his two databases. There is no way to say that - db1 may chain to db2 but not to db3 or db4.

-

According to Books Online, you cannot enable master, model and - tempdb for database chaining with ALTER DATABASE. It does not really - say whether chaining is enabled for these databases if you turn on cross db - ownership chaining, but some quick tests that I did indicate that even - if this option is on, it does not apply to master, model, - msdb and tempdb.

-

Personally, I recommend that you try to keep cross-database access to stored - procedure calls. That is, rather than directly access a table in the other - database, call a procedure in that database. In this case, ownership chaining - across database is not really needed – instead give the users EXECUTE - permission to the procedures in the other database.

-

Later in this article we will look at how to implement cross-database through certificate signing and through impersonation.

-

Signing Procedures with Certificates

-

We will now turn to the first of the two methods added in SQL 2005 to grant - permissions through stored procedures, signing a procedure with a - certificate.

-

Using Certificates within a Database

-

We will first look at using certificates for giving permissions on database level. As an example, I will use dynamic SQL, which probably is the most - common situation where you will want to use certificates as a supplement to - ownership chaining.

-

Our example setup is this one:

-
CREATE TABLE testtbl (a int NOT NULL,
-                      b int NOT NULL)
-go
-CREATE PROCEDURE example_sp AS
-   EXEC ('SELECT a, b FROM testtbl')
-go
-GRANT EXECUTE ON example_sp TO public
-go
-

As noted above, ownership chaining does not - work in this case, because the batch of dynamic SQL does not have any real - owner, and thus the chain is broken. To make it possible for a user to - run this procedure without SELECT permission on testtbl, you need to - take these four steps:

-
    -
  1. Create a certificate.
    2. -
  2. Create a user associated with that certificate.
    3. -
  3. Grant that user SELECT rights on - testtbl.
    4. -
  4. Sign the procedure with the certificate, each time you have - changed the procedure.
    5. -
-

When the procedure is invoked, the rights of the certificate user - are - added to the rights of the actual user. - Technically, we can describe this as the certificate user is added to the - current user token. If the procedure invokes another SQL module – - stored procedure, trigger, function etc – the certificate user is removed - from the user token (unless that module is also signed by the - certificate). There are two exceptions to this rule: system procedures and -dynamic SQL invoked through - EXEC() or sp_executesql. -In this case the certificate user is still present in the - user token, and its rights can apply.

-

This example shows the four steps in code.

-
CREATE CERTIFICATE examplecert
-    ENCRYPTION BY PASSWORD = 'All you need is love'
-    WITH SUBJECT = 'Certificate for example_sp',
-    START_DATE = '20020101', EXPIRY_DATE = '21000101'
-go
-CREATE USER examplecertuser FROM CERTIFICATE examplecert
-go
-GRANT SELECT ON testtbl TO examplecertuser
-go
--- And each time you change the procedure:
-ADD SIGNATURE TO example_sp BY CERTIFICATE examplecert
-    WITH PASSWORD = 'All you need is love'
-

In the following sections, we will look closer at each of these statements.

-

Creating the Certificate

-
CREATE CERTIFICATE examplecert
-    ENCRYPTION BY PASSWORD = 'All you need is love'
-    WITH SUBJECT = 'Certificate for example_sp',
-    START_DATE = '20020101', EXPIRY_DATE = '21000101'
-

The statement CREATE CERTIFICATE has several options, but for our purposes - the form above suffices. Here we create a new self-signed - certificate which is protected by a password. The password is not awfully strong; I will return to the topic of passwords in the section Managing Certificates and Passwords.

-

The WITH SUBJECT clause is part of the metadata for the certificate; in - the catalog view sys.certificates the subject appears in the column - issuer_name.

-

There is no requirement to enter a start date and an expiry date for the - certificate, but for practical reasons you may want to enter both. If you enter neither, the certificate is valid one year - from now. Since it is likely that your procedure will be in use for more than - one year, it's recommendable to give an expiry date far into the future. - If you leave out the start date, SQL 2005 - may produce this message:

-
Warning: The certificate you created is not yet valid; its start
-date is in the future.
-

The message is bogus since the default for the start date is the same second as you issue the command. - The message is not an error, but informational only. If you don't want to see it, specify a - start date. This issue has been fixed in SQL 2008.

-

Creating the Certificate User

-
CREATE USER examplecertuser FROM CERTIFICATE examplecert
-

We see here one more option for CREATE USER: we create a user from a certificate. Such a user exists in the database only and is not associated -with any login. You can only create one user for each certificate.

-

Granting Rights to the Certificate User

-
GRANT SELECT ON testtbl TO examplecertuser
-

Here's the beauty of it: we grant examplecertuser - exactly - the rights it - needs for our stored procedure to work. Of course, if you use a lot of dynamic SQL, you may prefer to grant - the certificate user SELECT on the dbo schema or add it to db_datareader. You might even consider to add it to db_owner to relieve you from any further hassle, as you add more dynamic - SQL to other stored procedures.

-

But stop there! Recall that discussion on philosophy in the beginning - of the article and - that one line of defence is to not grant more rights than necessary. This very much applies when you work with - dynamic SQL. You know about SQL injection, don't you? - If not, a quick - recap: if you build SQL strings from input data, a malicious user might be - able to inject SQL commands you did not intend - your code to execute by including a single quote (') in the input data. For a longer recap, see the section on - SQL injection in my article on - dynamic SQL.

-

You may already be aware of the risk of SQL injection, and you have taken - the steps necessary to protect your procedure against this attack. But that is today. Code changes throughout the life-time of an - application, and one day there is a need for an enhancement of the procedure, - and the task is given to an inexperienced programmer who, unaware of the dangers of SQL injection, breaks that line of defence. By giving the certificate user exactly the rights - needed for the stored procedure, you have set up a second line of defence - that reduces the potential damage significantly.

-

Signing the Procedure

-

This is the syntax to sign a procedure:

-
ADD SIGNATURE TO example_sp BY CERTIFICATE examplecert
-    WITH PASSWORD = 'All you need is love'
-

To use the certificate, you need to specify its password. You can sign a -procedure with more than one certificate to add permissions from several -certificate users.

-

If you change the procedure, the signature is lost, and you need to resign -the procedure. Given for what we want to use certificates for, this may seem impractical. When we grant someone execution rights on a stored procedure, these permissions are retained when we alter the procedure. So why do we need to resign a procedure when we change it? Isn't that a shortcoming? It may seem so, but it is worth to understand the general purpose of signing things with certificates, which extends far beyond stored procedures in SQL Server. Say that you have a important message you want to pass to someone else, for instance over e-mail. You want to make it possible for the receiver to verify that he got exactly the message you sent him. Therefore you sign your message, which requires both a public and a private key. You make your public key available, and the receiver can then apply that key to message and the signature to verify that they agree. If someone has altered the text or the signature, the validation will fail.

-

That is, every time you change the stored procedure, the signature will change, and this is why you must resign the procedure. It could seem that for the particular purpose that we are using certificates for here, that this is just hassle. But as I discuss in the section Managing Certificates and Passwords, the fact that the procedure must be resigned can in fact be a considerable security advantage.

-

Putting it All Together

-

Here is a full-fledged example that you can play with. To show the - difference, there are two procedures, of which only one is signed. (Please - refer to the introductory note on the examples - in this article.)

-
USE master
-go
--- Create a test login and test database
-CREATE LOGIN testuser WITH PASSWORD = 'CeRT=0=TeST'
-CREATE DATABASE certtest
-go
--- Move to the test database.
-USE certtest
-go
--- Create the test user.
-CREATE USER testuser
-go
--- Create the test table and add some data.
-CREATE TABLE testtbl (a int NOT NULL,
-                      b int NOT NULL)
-INSERT testtbl (a, b) VALUES (47, 11)
-go
--- Create two test stored procedures, and grant permission.
-CREATE PROCEDURE unsigned_sp AS
-   SELECT SYSTEM_USER, USER, name, type, usage FROM sys.user_token
-   EXEC ('SELECT a, b FROM testtbl')
-go
-CREATE PROCEDURE example_sp AS
-   SELECT SYSTEM_USER, USER, name, type, usage FROM sys.user_token
-   EXEC ('SELECT a, b FROM testtbl')
-   -- EXEC unsigned_sp
-go
-GRANT EXECUTE ON example_sp TO public
-GRANT EXECUTE ON unsigned_sp TO public
-go
--- Create the certificate.
-CREATE CERTIFICATE examplecert
-   ENCRYPTION BY PASSWORD = 'All you need is love'
-   WITH SUBJECT = 'Certificate for example_sp',
-   START_DATE = '20020101', EXPIRY_DATE = '20200101'
-go
--- Create the certificate user and give it rights to access the test table.
-CREATE USER examplecertuser FROM CERTIFICATE examplecert
-GRANT SELECT ON testtbl TO examplecertuser
-go
--- Sign the procedure.
-ADD SIGNATURE TO example_sp BY CERTIFICATE examplecert
-    WITH PASSWORD = 'All you need is love'
-go
--- Run as the test user, to actually see that this works.
-EXECUTE AS USER = 'testuser'
-go
--- First run the unsigned procedure. This gives a permission error.
-EXEC unsigned_sp
-go
--- Then run the signed procedure. Now we get the data back.
-EXEC example_sp
-go
--- Become ourselves again.
-REVERT
-go
--- Clean up
-USE master
-DROP DATABASE certtest
-DROP LOGIN testuser
-

Who's Who?

-

As you can see, I added this statement to the two test procedures in the - example:

-
SELECT SYSTEM_USER, USER, name, type, usage FROM sys.user_token
-

When we run unsigned_sp, this returns

-
SYSTEM_USER  USER       name      type      usage
------------- ---------- --------- --------- --------------
-testuser     testuser   testuser  SQL USER  GRANT OR DENY
-testuser     testuser   public    ROLE      GRANT OR DENY
-

What this tells us is that we are logged in as testuser, and this is also the - name of the user in the database. There are two rows in sys.user_token, one - for the user, and one for the single role that testuser is a member of.

-

But when we run example_sp, which is signed, there is an extra line:

-
SYSTEM_USER USER     name            type                        usage
-----------  -------- -----------     --------------------------- ---------------
-testuser    testuser testuser        SQL USER                    GRANT OR DENY
-testuser    testuser public          ROLE                        GRANT OR DENY
-testuser    testuser examplecertuser USER MAPPED TO CERTIFICATE  GRANT OR DENY
-

We see here that the user for the certificate has been added - to the user token, so its permissions can apply as well. We can also see that we still - are testuser, and no one else. This may seem like a pointless thing to - mention, but as we shall see later, this is not the case when you use - EXECUTE AS.

-

As you see, example_sp includes a call to unsigned_sp that has been - commented out. If you remove that comment, and run the script again, when you call unsigned_sp from example_sp, you get a permission error just like when unsigned_sp is called directly. - You will also see in the output from sys.user_token, that - examplecertuser is not there.

-

There is one situation where certificate signing does not work. If the user has explicitly been denied access to one or more of the tables in the query with the DENY command, this takes precedence over the permissions granted to the certificate user. This is different from ownership chaining, where DENY never interferes with the permissions given through the stored procedure. (This is because ownership chaining suppresses the permission check altogether.) As will see later, this obstacle does not exist when you use impersonation with EXECUTE AS.

-

Using Certificates with Bulk Copy

-

Another common situation where ownership chaining does not suffice is when - you need to give users permissions to empty a table and reload it with BULK INSERT - from a file. Here is a very simple procedure for this task:

-
CREATE PROCEDURE reload_sp AS
-   TRUNCATE TABLE reloadable
-   BULK INSERT reloadable FROM 'E:\temp\reloadable.csv'
-      WITH (FIELDTERMINATOR=',', ROWTERMINATOR='\n')
-

Ownership chaining fails here for two reasons: 1) it does not apply to - TRUNCATE TABLE. 2) to perform bulk operations, you need the - server-level permission ADMINISTER BULK OPERATIONS or membership in the fixed server role bulkadmin.

-

You can address this by signing reload_sp, but this is more - complicated than in the previous example, because you can only add server permissions when you are in the master database. - Therefore, to set up reload_sp so it can be executed by an - unprivileged user, there are no less than ten steps to go through:

-
    -
  1. Create a certificate in the master database.
    2. -
  2. Create a login for that certificate.
    3. -
  3. Grant that login rights to perform bulk operations.
    4. -
  4. Export the certificate to file.
    5. -
  5. Switch to the application database.
    6. -
  6. Import the certificate from the file.
    7. -
  7. Delete the file from disk.
    8. -
  8. Create a user for the certificate.
    9. -
  9. Grant the certificate user rights to truncate the target table and insert into it.
    10. -
  10. Sign the stored procedure with the certificate, each time you have - changed the procedure.
    11. -
-

In SQL Server 2012 the steps 4, 6 and 7 can be carried out in a different way. Since SQL 2012 at this writing still is in beta, I put the focus on the steps that works in all versions from SQL 2005 and on, and cover the new features in SQL 2012 later.

-

First some example code for the bit in master.

-
USE master
-go
-CREATE CERTIFICATE reloadcert
-   ENCRYPTION BY PASSWORD = 'All you need is love'
-   WITH SUBJECT = 'For bulk-load privileges',
-   START_DATE = '20020101', EXPIRY_DATE = '20200101'
-go
-CREATE LOGIN reloadcert_login FROM CERTIFICATE reloadcert
-go
-GRANT ADMINISTER BULK OPERATIONS TO reloadcert_login
-go
-BACKUP CERTIFICATE reloadcert TO FILE = 'C:\temp\reloadcert.cer'
-WITH PRIVATE KEY (FILE = 'C:\temp\reloadcert.pvk' ,
-                  ENCRYPTION BY PASSWORD = 'Tomorrow never knows',
-                  DECRYPTION BY PASSWORD = 'All you need is love')
-go
-

The creation of the certificate is the same as in the example with dynamic - SQL. Since we need to grant a server - permission, a mere certificate user won't do, but we must associate the - certificate with a login. (Or more in line with the lingo introduced in SQL 2005, a - server principal. "Login" is a misnomer here, as the login created for a - certificate cannot actually log in.) Next we grant the certificate login - the rights to run bulk load.

-

Finally we export the certificate to disk with the command BACKUP CERTIFICATE. The certificate consists of two parts: a public key which goes into - the first file, and a private key. The private key requires a password on its - own, Tomorrow never knows, in this example. The path where to write the files is a small complication that I will come back to. In this example I use C:\temp to keep the script simple. However, you may find that C:\temp does not work for you, because it does not exist at all, or the service account for SQL Server does not have permission to this directory.

-

Here are the parts you would run in the application database:

-
CREATE CERTIFICATE reloadcert FROM FILE = 'C:\temp\reloadcert.cer'
-WITH PRIVATE KEY (FILE = 'C:\temp\reloadcert.pvk',
-                  DECRYPTION BY PASSWORD = 'Tomorrow never knows',
-                  ENCRYPTION BY PASSWORD = 'A day in life')
-go
-EXEC xp_cmdshell 'DEL C:\temp\reloadcert.*'
-go
-CREATE USER reloadcert_user FOR CERTIFICATE reloadcert
-go
-GRANT ALTER, INSERT ON reloadable TO reloadcert_user
-go
--- Sign the test procedure each time you have changed it.
-ADD SIGNATURE TO reload_sp BY CERTIFICATE reloadcert
-    WITH PASSWORD = 'A day in life'
-go
-

Here we use CREATE CERTIFICATE in a different way - than before. Instead of creating - a new certificate, we import the certificate - that we exported from master. We need to specify the password for the - private key to be able to access the file. We must also define a password for the certificate in this - database. In this example, I'm using different passwords for the certificate - in master and in the application database just to show you that this is - possible. It's - probably more practical to use the same password in both databases, though.

-

We delete the files with the certificate from disk. This is a security precaution, since any database -owner on the machine could load the certificate into his database. But it is also a matter of convenience; if you re-run the script and the certificate files are already on disk, BACKUP CERTIFICATE will fail.

-

Note: xp_cmdshell - is disabled by default. An alternative is to delete the file directly from Windows manually.

-

Next, we create the certificate user. This user is not related to the - login for the certificate, and I've stressed this by giving them different names. - Again, in practice, you may prefer to use the same name for both. We grant the - certificate user the database permissions that are needed: - ALTER permission for TRUNCATE TABLE, and INSERT permission for BULK INSERT. - Finally, we sign the procedure, using the password for the certificate in this - database.

-

We are almost done, but if you do all this and try to run the procedure reload_sp - as a non-privileged user, you will nevertheless get an error message that you don't have - permissions to do bulk load. Because of a - bug in SQL - Server, we need to modify the procedure:

-
CREATE PROCEDURE reload_sp AS
-    TRUNCATE TABLE reloadable
-    EXEC('BULK INSERT reloadable FROM ''C:\temp\reloadtest.csv''
-          WITH (FIELDTERMINATOR='','', ROWTERMINATOR=''\n'')')
-

This bug is specific to bulk-load permissions, and I have not found any other - server-level permission that has the same issue. (The specifics of the bug - are - that SQL Server checks the permissions for BULK INSERT - before the certificate has been added to the user token. By putting BULK INSERT in an inner scope with dynamic SQL, we can work around the bug.)

-

Full Example for Bulk-load

-

As in the previous example there are two procedures, one signed and one - unsigned, and I've - added SELECT from sys.login_token and sys.user_token, so - that you - can see how the certificate login and the certificate user are added and deleted. (Again, please refer to - the introductory note for general notes on the - examples.) If you get errors when you run the script that C:\temp does not exist, or you get permissions errors with C:\temp, see below.

-
USE master
-go
--- Create a test file for bulk load.
-EXEC xp_cmdshell 'ECHO 978,123,234 > C:\temp\reloadtest.csv', no_output
-EXEC xp_cmdshell 'ECHO -98,13,85 >> C:\temp\reloadtest.csv', no_output
-go
--- Create a test login.
-CREATE LOGIN testuser WITH PASSWORD = 'CeRT=0=TeST'
-go
--- Create test database.
-CREATE DATABASE bulkcerttest
-go
--- Create certificate in master.
-CREATE CERTIFICATE reloadcert
-   ENCRYPTION BY PASSWORD = 'All you need is love'
-   WITH SUBJECT = 'For bulk-load privileges',
-   START_DATE = '20020101', EXPIRY_DATE = '20200101'
-go
--- Create a login for the certificate.
-CREATE LOGIN reloadcert_login FROM CERTIFICATE reloadcert
-go
--- Grant rights for the certificate login.
-GRANT ADMINISTER BULK OPERATIONS TO reloadcert_login
-go
--- Save the certificate to disk.
-BACKUP CERTIFICATE reloadcert TO FILE = 'C:\temp\reloadcert.cer'
-WITH PRIVATE KEY (FILE = 'C:\temp\reloadcert.pvk' ,
-                  ENCRYPTION BY PASSWORD = 'Tomorrow never knows',
-                  DECRYPTION BY PASSWORD = 'All you need is love')
-go
--- Move to test database.
-USE bulkcerttest
-go
--- Create the non-priv user.
-CREATE USER testuser
-go
--- A test table.
-CREATE TABLE reloadable (a int NOT NULL,
-                         b int NOT NULL,
-                         c int NOT NULL)
-go
--- Insert some test data. If test succeeds, this data should disappear.
-INSERT reloadable (a, b, c) VALUES (12, 23, 34)
-go
--- Test procedure with BULK INSERT. BULK INSERT needs to be in
--- EXEC() because of a bug in SQL Server.
-CREATE PROCEDURE reload_sp AS
-    SELECT name, type, usage FROM sys.login_token
-    SELECT name, type, usage FROM sys.user_token
-    TRUNCATE TABLE reloadable
-    EXEC('BULK INSERT reloadable FROM ''C:\temp\reloadtest.csv''
-          WITH (FIELDTERMINATOR='','', ROWTERMINATOR=''\n'')')
-go
--- The same code, but this procedure we will not sign.
-CREATE PROCEDURE unsigned_sp AS
-    SELECT name, type, usage FROM sys.login_token
-    SELECT name, type, usage FROM sys.user_token
-    --TRUNCATE TABLE reloadable
-    EXEC('BULK INSERT reloadable FROM ''C:\temp\reloadtest.csv''
-          WITH (FIELDTERMINATOR='','', ROWTERMINATOR=''\n'')')
-go
--- Give test user right to execute the procedures.
-GRANT EXECUTE ON reload_sp TO testuser
-GRANT EXECUTE ON unsigned_sp TO testuser
-go
--- Import the certificate we created in master into the test database.
-CREATE CERTIFICATE reloadcert FROM FILE = 'C:\temp\reloadcert.cer'
-WITH PRIVATE KEY (FILE = 'C:\temp\reloadcert.pvk',
-                  DECRYPTION BY PASSWORD = 'Tomorrow never knows',
-                  ENCRYPTION BY PASSWORD = 'A day in life')
-go
--- Delete the files.
-EXEC master..xp_cmdshell 'DEL C:\temp\reloadcert.*', 'no_output'
-go
--- And create a user for the certificate.
-CREATE USER reloadcert_user FOR CERTIFICATE reloadcert
-go
--- Grant this user rights to truncate and insert to the test table.
-GRANT ALTER, INSERT ON reloadable TO reloadcert_user
-go
--- Sign the test procedures.
-ADD SIGNATURE TO reload_sp BY CERTIFICATE reloadcert
-    WITH PASSWORD = 'A day in life'
-go
--- Switch to the test user.
-EXECUTE AS LOGIN = 'testuser'
-go
--- Run the unsigned procedure. You will get a permission error.
-EXEC unsigned_sp
-go
--- Run the real reload procedure.
-EXEC reload_sp
-go
--- Back to ourselves.
-REVERT
-go
--- The data in the table has been replaced.
-SELECT a, b, c FROM reloadable
-go
--- Clean up.
-USE master
-go
-DROP DATABASE bulkcerttest
-DROP LOGIN reloadcert_login
-DROP CERTIFICATE reloadcert
-DROP LOGIN testuser
-EXEC xp_cmdshell 'DEL C:\temp\reloadtest.csv', 'no_output'
-

In unsigned_sp I have commented TRUNCATE TABLE, in order to - demonstrate the error you get because lack of bulk permissions. If you - uncomment TRUNCATE TABLE, you will get a different permission error from - unsigned_sp.

-

One problem here is that we need to bounce the certificate over disk. To do this, you need to determine a directory where you can write the certificate. This can be particularly difficult if you need to do this in a deployment script to be run on servers you never have seen. In this example, I used C:\temp for the sake of simplicity, but C:\temp does not exist on all servers. Even if it does, the service account for SQL Server may not have write access to that folder. If you leave out the path entirely, BACKUP CERTIFICATE will write the files to the default directory for new databases and likewise CREATE CERTIFICATE will read from this directory. It's reasonable to expect that SQL Server has write access to this folder, so far so good. Unfortunately, this path is not easily determined from within SQL Server, so there is a challenge if you want to delete the files programmatically from your deployment script. One way to get a path that is known to be writeable is this SELECT:

-
SELECT substring(physical_name, 1, len(physical_name) -
                                   charindex('\', reverse(physical_name)) + 1)
FROM   sys.database_files
WHERE  file_id = 1
-

This retrieves the path to the directory where the first file for the current database resides. You would use this path throughout the script, which means that BACKUP/CREATE CERTIFICATE has to be embedded in dynamic SQL, as they don't accept variables for the file name.

-

CREATE CERTIFICATE FROM BINARY in SQL 2012

-

It would certainly be convenient, if you could copy a certificate directly from one database to another without bouncing it over disk, and there is a new feature in SQL Server 2012 that permits you to do this. There is a new clause to CREATE CERTIFICATE: FROM BINARY which permits you to specify the certificate as a binary constant. SQL 2012 also offers two new functions certencoded and certprivatekey which permits you to retrieve the public and the private keys of the certificate. Thus, you can say:

-
DECLARE @public_key varbinary(MAX) = certencoded(my_cert),
-        @private_key varbinary(MAX) = 
-            certprivatekey(my_cert, 'private_key_password', 'public_key_password')
-CREATE CERTIFICATE newcert
-FROM BINARY = @public_key
-WITH PRIVATE KEY (BINARY = @private_key,
-                  DECRYPTION BY PASSWORD = 'private_key_password',
-                  ENCRYPTION BY PASSWORD = 'new_public_key_password')
-

Almost. The functions do not accept the name for the certificate, but they want the the certificate id in sys.certificates. You can retrieve it with the cert_id function, see example below for how to use it. Furthermore, CREATE CERTIFICATE does not accept variables for the binary value, but you must provide a constant, which means that you are in for some dynamic SQL.

-

To use this new functionality to copy a certificate between databases, we replace the steps 4-7 above to read:

-
    -
  1. Save the keys of the certificae to a temp table.
    2. -
  2. Switch to the application database.
    3. -
  3. Create the certificate from the data in the temp table.
    4. -
  4. Drop the temp table.
    5. -
-

The reason we like to use a temp table is that our example script is split into a number of batches. We cannot use variables, as they exist only for the duration of a batch. Whence the temp table. This is how step 4 looks like:

-
CREATE TABLE #keys (pubkey varbinary (MAX) NOT NULL,
-                    privkey varbinary(MAX) NOT NULL)
-INSERT #keys (pubkey, privkey)
-SELECT certencoded(cert_id('reloadcert')),
-       certprivatekey(cert_id('reloadcert'), 'Tomorrow never knows',
-                                             'All you need is love')
-

The passwords you pass to certprivatekey correspond to the passwords we used with BACKUP CERTIFICATE above. That is, the first password is the password for the private key, which you have to make up at this point. The second password is the password for the public key that you used when you created the certificate in master.

-

Since we need to use dynamic SQL to create the certificate from the data in the temp table, this part gets a little more complicated than it would have to be. Here is how it looks with our bulk-copy example:

-
DECLARE @sql nvarchar(MAX)
-SELECT @sql = 
-   'CREATE CERTIFICATE reloadcert 
-    FROM BINARY = ' + convert(nvarchar(MAX), pubkey, 1) + '
-    WITH PRIVATE KEY (BINARY = ' + convert(nvarchar(MAX), privkey, 1) + ',
-                      DECRYPTION BY PASSWORD = ''Tomorrow never knows'',
-                      ENCRYPTION BY PASSWORD = ''A day in life'')'
-FROM #keys
-
PRINT @sql
-EXEC (@sql)
-DROP TABLE #keys
-

A key here is the third argument to the convert function; this converts the binary value to a hex-string with a leading 0x. This style to convert was added in SQL 2008, in case you are not familiar with it. If you compare with the CREATE CERTIFICATE command when we imported the certificate from a file, this is very similar; all that has changed is that FILE is now BINARY and the extra syntactical fireworks imposed to us because we have to use dynamic SQL.

-

Before we execute the command, we print it, so we can understand what is going on if there is a syntax error in our dynamic SQL. Finally, we drop the temp table as a safety precaution. If we would leave it around, we could run into problems later if we would re-run the script or run a similar script from the same query window.

-

The script bulkcopy-2012.sql has the full example for bulk-load for SQL 2012, using CREATE CERTIFICATE FROM BINARY.

-

All and all, this is a welcome addition to SQL 2012, since it makes it easier to copy certificates between databases. Not so much for the different syntax, but you don't have to worry about disk paths in your scripts.

-

Cross-Database Access

-

When you need to write a stored procedure that accesses data in another - database, you can arrange permissions by signing your procedure with a - certificate that exists in both databases. The steps are similar to the - bulk-copy case, so I will go directly to an example - script.

-

There are two things to note with this script: 1) testuser is never - granted access to db1. That is, by signing your procedures with a - certificate, you can give users access to data in a database they do not have - access to themselves. This is different from ownership chaining, where the user must - have been granted access to the target database. 2) I don't create - any user for the certificate in db2, simply because in this example no permissions are - needed to be granted through the certificate in db2.

-

Here is the script (please see the introductory - note for general notes on the example scripts):

-
USE master
-go
--- Create a test login.
-CREATE LOGIN testuser WITH PASSWORD = 'CeRT=0=TeST'
-go
--- Create test two databases
-CREATE DATABASE db1
-CREATE DATABASE db2
-go
--- Move to first test database.
-USE db1
-go
--- Create certificate in db1
-CREATE CERTIFICATE crossdbcert
-   ENCRYPTION BY PASSWORD = 'Lucy in the Skies with Diamonds'
-   WITH SUBJECT = 'Cross-db test',
-   START_DATE = '20020101', EXPIRY_DATE = '20200101'
-go
--- Save the certificate to disk.
-BACKUP CERTIFICATE crossdbcert TO FILE = 'C:\temp\crossdbcert.cer'
-WITH PRIVATE KEY (FILE = 'C:\temp\crossdbcert.pvk' ,
-                  ENCRYPTION BY PASSWORD = 'She said She said',
-                  DECRYPTION BY PASSWORD = 'Lucy in the Skies with Diamonds')
-go
--- Create the certificate user. Note that we do not grant access to
--- testuser.
-CREATE USER certuser FROM CERTIFICATE crossdbcert
-go
--- A test table.
-CREATE TABLE testtbl (a int NOT NULL,
-                      b int NOT NULL,
-                      c int NOT NULL)
-go
--- Insert some test data.
-INSERT testtbl (a, b, c) VALUES (12, 23, 34)
-go
--- The certificate user needs to access this table.
-GRANT SELECT ON testtbl TO certuser
-go
--- Switch to the second database.
-USE db2
-go
--- Welcome the test user to this database.
-CREATE USER testuser
-go
--- Signed test procedure.
-CREATE PROCEDURE signed_sp AS
-    SELECT a, b, c FROM db1..testtbl
-go
--- Same code, but we will leave this one unsigned.
-CREATE PROCEDURE unsigned_sp AS
-    SELECT a, b, c FROM db1..testtbl
-go
--- Give test user right to execute the procedures.
-GRANT EXECUTE ON signed_sp TO testuser
-GRANT EXECUTE ON unsigned_sp TO testuser
-go
--- Import the certificate we created in the first test database into the second.
-CREATE CERTIFICATE crossdbcert FROM FILE = 'C:\temp\crossdbcert.cer'
-WITH PRIVATE KEY (FILE = 'C:\temp\crossdbcert.pvk',
-                  DECRYPTION BY PASSWORD = 'She said She said',
-                  ENCRYPTION BY PASSWORD = 'Helter Skelter')
-go
--- Delete the file with the certificate.
-EXEC master..xp_cmdshell 'DEL C:\temp\crossdbcert.*', 'no_output'
-go
--- Sign the test procedures.
-ADD SIGNATURE TO signed_sp BY CERTIFICATE crossdbcert
-    WITH PASSWORD = 'Helter Skelter'
-go
--- Switch to the test login.
-EXECUTE AS LOGIN = 'testuser'
-go
--- Run the unsigned procedure. You will get a permission error.
-EXEC unsigned_sp
-go
--- Run the signed procedure. testuser can now access testdbl, even though
--- he is not a user of db1.
-EXEC signed_sp
-go
--- Back to ourselves.
-REVERT
-go
--- Clean up.
-USE master
-go
-DROP DATABASE db1
-DROP DATABASE db2
-DROP LOGIN testuser
-

See the file crossdb-2012.sql for a version that uses the new FROM BINARY clause on SQL Server 2012 to copy the certificate.

-

 

-

Counter Signatures

-

If you look up the command ADD SIGNATURE in Books Online, you will find that there is an optional keyword COUNTER which you can put before SIGNATURE, but in Books Online for SQL 2005 and SQL 2008 there is no information what this keyword means. It was added to Books Online first with SQL 2008 R2. Before that, the only place to learn about counter signatures was a a blog post from Laurenţiu Cristofor. He was one of the Program Managers for the security enhancements in SQL 2005.

-

When you counter-sign a procedure P1 with a certificate C, this has in itself no effect at all, even if permissions has been granted to a user for that certificate. But assume that there is also a procedure P2 that has been signed (and not counter-signed) with C, and that P2 calls P1. Normally, when you call an inner procedure from a signed procedure, the certificate user is removed from the user token. But when P1 is counter-signed with C, the certificate user remains in the user token. The net effect of this is that you can get the powers of P1 only if you call it through P2.

-

How could we use this? Here is one example. Assume that we have generic search procedure that in itself permits users to search all data. However, there are business rules that say that users may only see customers (or products or whatever) they have access to according to some scheme. These rules are enforced by an outer procedure that computes the values for some of the parameters to the inner procedure, thereby constraining the search. In the example below, this is extremely simple: the user may only see rows he owns. In a real-world scenario, both procedures would be far more elaborate. (Please see the introductory -note for general notes on the example scripts).

-
USE master
-go
--- Create a test login and test database.
-CREATE LOGIN testuser WITH PASSWORD = 'CeRT=0=TeST'
-CREATE DATABASE certtest
-go
--- Move to the test database.
-USE certtest
-go
--- Create the test user, and grant him permission to execute any
--- stored procedure.
-CREATE USER testuser
-GRANT EXECUTE TO testuser
-go
--- Create a test table and add some data.
-CREATE TABLE testtbl (a     int     NOT NULL,
-                      b     int     NOT NULL,
-                      owner sysname NOT NULL)
-INSERT testtbl (a, b, owner) VALUES (47, 11, 'testuser')
-INSERT testtbl (a, b, owner) VALUES (17, 89, 'someotheruser')
-go
--- This is the inner procedure that permits you to view all data,
--- but the selection could be constrained to a certain owner.
-CREATE PROCEDURE inner_sp @owner sysname = NULL AS
-   SELECT SYSTEM_USER, USER, name, type, usage FROM sys.user_token
-   DECLARE @sql nvarchar(MAX)
-   SELECT @sql = N'SELECT a, b FROM testtbl WHERE 1 = 1 '
-   IF @owner IS NOT NULL
-      SELECT @sql = @sql + ' AND owner = @owner'
-   EXEC sp_executesql @sql, N'@owner sysname', @owner
-go
--- The outer procedure which forces the owner to be the current user.
-CREATE PROCEDURE outer_sp AS
-   SELECT SYSTEM_USER, USER, name, type, usage FROM sys.user_token
-   DECLARE @owner sysname
-   SELECT @owner = SYSTEM_USER
-   EXEC inner_sp @owner
-go
--- Create the certificate.
-CREATE CERTIFICATE examplecert
-   ENCRYPTION BY PASSWORD = 'Being for the benefit of Mr Kite'
-   WITH SUBJECT = 'Certificate for counter-sign example',
-   START_DATE = '20020101', EXPIRY_DATE = '20200101'
-go
--- Create the certificate user and grant access the test table.
-CREATE USER examplecertuser FROM CERTIFICATE examplecert
-GRANT SELECT ON testtbl TO examplecertuser
-go
--- Sign the outer procedure.
-ADD SIGNATURE TO outer_sp BY CERTIFICATE examplecert
-    WITH PASSWORD = 'Being for the benefit of Mr Kite'
-go
--- And counter-sign the inner procedure.
-ADD COUNTER SIGNATURE TO inner_sp BY CERTIFICATE examplecert
-    WITH PASSWORD = 'Being for the benefit of Mr Kite'
-go
--- Run as the test user, to actually see that this works.
-EXECUTE AS USER = 'testuser'
-go
--- First run the inner procedure directly. This gives a permission
--- error.
-EXEC inner_sp
-go
--- Then run the outer procedure. Now we get the data back, but
--- only what we are permitted to see.
-EXEC outer_sp
-go
--- Become ourselves again.
-REVERT
-go
--- Clean up.
-USE master
-DROP DATABASE certtest
-DROP LOGIN testuser
-

True, this could also be implemented by signing inner_sp with the certificate directly, and then make sure that users does not have EXECUTE permission on this procedure, for instance with an explicit DENY. Thanks to ownership signing, users would still be able to call the inner procedure if they come from the outer procedure. But this would require you to manage two security mechanisms to achieve your goal, whereas with counter-signing you only need one.

-

Here is a second example, inspired by a newsgroup question. A poster wanted users of an application to be able to start a certain job with sp_start_job. To be able to start a job owned by someone else, you need to be member of the fixed role SQLAgentOperatorRole in msdb. A start is to write a stored procedure that calls sp_start_job for this specific job, sign that procedure with a certificate, and then create a user from the certificate and make that user a member of SQLAgentOperatorRole.

-

We have learnt previously that when you call a system procedure, the certificate user remains in the user token, and thus you can take benefit of the permissions granted to the certificate user. But it turns out that the procedures in msdb are not system procedures in that sense. So we need to sign sp_start_job as well, but a normal signature is not a very good idea since this would permit users to start any job. Instead we counter-sign sp_start_job with the same certificate that we sign the wrapper procedure with, and we are almost there. I found by testing that sp_start_job calls two other procedures, sp_sqlagent_notify and sp_verify_job_identifiers, and they must be counter-signed as well.

-

I should hasten to add, that this solution is not unquestionable. Does Microsoft support signing of msdb procedures? If you install a service pack or a hotfix, you will need to reapply the signatures if Microsoft replaces the procedures with updated versions. They may also restructure the code, requiring you to counter-sign a different set of procedures.

-

Nevertheless, here is a complete script that demonstrates this technique. Note that to run it successfully, you need to have SQL Server Agent running, and you need to create a job called Testjob (which can do PRINT 'Hello world!' or whatever.) As always, please see the introductory -note for general notes on the example scripts. For the SQL 2012 version, please see the file jobstart-2012.sql.

-
USE master
-go
--- Create a test login.
-CREATE LOGIN testuser WITH PASSWORD = 'CeRT=0=TeST'
-go
--- Create test database.
-CREATE DATABASE jobstarttest
-go
-USE msdb
--- Create certificate in msdb.
-CREATE CERTIFICATE jobstartcert
-   ENCRYPTION BY PASSWORD = 'Strawberry Fields Forever'
-   WITH SUBJECT = 'To permit starting the Testjob',
-   START_DATE = '20020101', EXPIRY_DATE = '20200101'
-go
--- Create a user for the certificate.
-CREATE USER jobstartcert_user FROM CERTIFICATE jobstartcert
-go
--- Grant rights for the certificate login to run jobs.
-EXEC sp_addrolemember SQLAgentOperatorRole, jobstartcert_user
-go
--- Counter-sign sp_start_job and its subprocedures.
-ADD COUNTER SIGNATURE TO sp_start_job BY CERTIFICATE jobstartcert
-    WITH PASSWORD = 'Strawberry Fields Forever'
-ADD COUNTER SIGNATURE TO sp_verify_job_identifiers BY CERTIFICATE jobstartcert
-    WITH PASSWORD = 'Strawberry Fields Forever'
-ADD COUNTER SIGNATURE TO sp_sqlagent_notify BY CERTIFICATE jobstartcert
-    WITH PASSWORD = 'Strawberry Fields Forever'
-go
--- Save the certificate to disk.
-BACKUP CERTIFICATE jobstartcert TO FILE = 'C:\temp\jobstartcert.cer'
-WITH PRIVATE KEY (FILE = 'C:\temp\jobstartcert.pvk' ,
-                  ENCRYPTION BY PASSWORD = 'Looking through a Glass Onion',
-                  DECRYPTION BY PASSWORD = 'Strawberry Fields Forever')
-go
--- Move to test database.
-USE jobstarttest
-go
--- Create a database user for the test login.
-CREATE USER testuser
-go
--- Create a procedure that starts a certain job.
-CREATE PROCEDURE start_this_job AS
-   EXEC msdb..sp_start_job 'Testjob'
-go
--- Give test user right to execute the procedure.
-GRANT EXECUTE ON start_this_job TO testuser
-go
--- Import the certificate we created in msdb into the test database.
-CREATE CERTIFICATE jobstartcert FROM FILE = 'C:\temp\jobstartcert.cer'
-WITH PRIVATE KEY (FILE = 'C:\temp\jobstartcert.pvk',
-                  DECRYPTION BY PASSWORD = 'Looking through a Glass Onion',
-                  ENCRYPTION BY PASSWORD = 'Fixing a Hole')
-go
--- Delete the files.
-EXEC master..xp_cmdshell 'DEL C:\temp\jobstartcert.*', 'no_output'
-go
--- Sign the test procedures.
-ADD SIGNATURE TO start_this_job BY CERTIFICATE jobstartcert
-    WITH PASSWORD = 'Fixing a Hole'
-go
--- Switch to the test user.
-EXECUTE AS LOGIN = 'testuser'
-go
--- Start the job, this succeeds.
-EXEC start_this_job
-go
--- Back to ourselves.
-REVERT
-go
--- Clean up.
-USE msdb
-go
-DROP COUNTER SIGNATURE FROM sp_sqlagent_notify
-   BY CERTIFICATE jobstartcert
-DROP COUNTER SIGNATURE FROM sp_verify_job_identifiers
-   BY CERTIFICATE jobstartcert
-DROP COUNTER SIGNATURE from sp_start_job
-   BY CERTIFICATE jobstartcert
-DROP USER jobstartcert_user
-DROP CERTIFICATE jobstartcert
-go
-USE master
-go
-DROP DATABASE jobstarttest
-DROP LOGIN testuser
- -

Using Asymmetric Keys

-

Instead of signing your procedure with certificate, you can use asymmetric keys. - You create an asymmetric key in SQL Server - with the command CREATE ASYMMETRIC KEY. The - syntax is similar, but not identical, to CREATE - CERTIFICATE. Please see Books Online for details.

-

From a cryptographic point of view, a certificate is an asymmetric key that has - an issuer and an expiration date. Since it has an issuer, a certificate can - participate in a chain of trust, which is important in for instance Service - Broker dialogues. When it comes to signing stored procedures, I have (with - quite some help from Razvan Socol) identified the following practical - differences:

- -

All and all, I can't find any of these points convincing enough to mandate - any over the other. I have preferred to talk only about certificates in the - main part of this text to simplify the presentation.

-

Which Procedures are Signed by Which Certificates?

-

To see which procedures that have been signed in a database, you can run - this query. crypt_type_desc will tell you whether the procedure is signed with a certificate or an asymmetric key, and whether it's regularly signed or counter-signed.

-
SELECT Module = object_name(cp.major_id),
-       [Cert/Key] = coalesce(c.name, a.name),
-       cp.crypt_type_desc
-FROM   sys.crypt_properties cp
-LEFT   JOIN sys.certificates c    ON c.thumbprint = cp.thumbprint
-LEFT   JOIN sys.asymmetric_keys a ON a.thumbprint = cp.thumbprint
-

To find the users mapped to certificates, you can use this query:

-
SELECT certname = c.name, "username" = dp.name
-FROM   sys.certificates c
-JOIN   sys.database_principals dp ON c.sid = dp.sid
-

In the same vein, to find logins mapped to certificates:

-
SELECT certname = c.name, loginname = sp.name
-FROM   master.sys.certificates c
-JOIN   sys.server_principals sp ON c.sid = sp.sid
-

(Queries for users/logins mapped to asymmetric keys are similar.)

-

If you want to find all databases where a certificate has - been used, you will need to query them all, using the thumbprint and/or the - subject as the key.

-

Managing Certificates and Passwords

-

Normally passwords should be strong and kept secret, but I have already - hinted that for procedure signing this may not always be necessary.

-

Let's first consider the case when you use a certificate to grant permissions on database level. What if an unauthorised user learns the password for a certificate that is used to sign one or more procedures? To be able to use the password for some evil, he would first need to have the rights to create procedures in some schema. Furthermore, to use ADD SIGNATURE he needs CONTROL permission on the certificate. In practice you would only have that permission if you are member of the db_owner role, in which case you can create your own certificates and sign procedures with them all day long. The potential threat I can see is that another database owner could borrow your keyboard while you are away, and export a certificate that gives access to some sensitive table. He could import the certificate into his database and sign a procedure that reads this data. Of course, he could just as well create a new certificate when he uses your keyboard, but if he uses an existing certificate the data theft is more likely to go unnoticed.

-

All and all, for certificates used for procedure signing on database level, the password is not your biggest secret. Nevertheless, below I present an approach that permits throw away the password altogether so that no one knows it, not even you.

-

Let's now look at using certificates to grant server-level permissions. (I am not discussing cross-database access specifically, but what I say here can be applied to cross-database access as well.) There is the plain and simple case where everyone who has db_owner rights in the user databases also are members of sysadmin or have CONTROL SERVER. This scenario is no different from database permissions: there isn't really anyone to hide the password for. All examples presented this far have been written under this assumption, since I wanted to focus on the mechanism as such. But if there are users who have db_owner rights in a database without being sysadmin, it's a different story. Here you need to apply care.

-

Say that you are the DBA on a consolidated server and you are approached by an application admin, let's call her Anna DeMin who has db_owner rights in the database for her application. Anna has written the procedure reload_sp and wants you to sign it. To this end, you first review her code to ensure that she reads from the directory allotted for her application. You can then follow the steps outlined in the example script we saw previously.

-

In this situation, you need to make sure that Anna's does not learn the password for the certificate that you create in her database, since else she could change the procedure to read from somewhere else. You also need to hide the password for the private key, or delete it from disk directly so she cannot import it. Here is much of the beauty with certificates: as a server DBA, you can have full control over what permissions you have granted to user databases and to what code. To do that, you need to be able to manage your passwords.

-

Now, if you are a server DBA, I can hear you say that you don't have the time for all this, and you trust your application admins, so you will give Anna the cert and the password, and that's that. Of course, if you trust your colleagues that's great, but no matter whether you do or not, I have a script for you that permits you to automate most of this process. The one step I cannot automate for you is the code review.

-

The key points of the script.

-
    -
  1. There is one certificate for each procedure you sign. Every time you need to re-sign a procedure after a change, the script throws the old certificate away and creates a new one. All certificates have names that start with SIGN followed by the fully qualified name of the signed procedure. The subject also includes the permissions granted. Thus, you can easily review which permissions you have granted by querying sys.certificates in master. Logins have the same names as the certificates.
    2. -
  2. The password are GUIDs (with some extra characters to make sure that they pass the complexity rules enforced by Windows), and they are used only for the duration of the script and not saved.
    3. -
  3. When the procedure has been signed, the private key is removed from the certificate with ALTER CERTIFICATE cert REMOVE PRIVATE KEY. Once the private key has been removed, the certificate is only good for validation, but cannot be used to sign any new procedures.
    4. -
  4. The script does not grant database-level permissions. In the bulk-load example, we granted INSERT and ALTER permissions on the target table. The application admin needs to create a separate certificate for this. Keep in mind that a procedure can be signed by more than one certificate.
    5. -
-

The script does have any support for counter-signatures, but if you need this, you could extend the script for this purpose.

-

The script consists of two parts. The first part is the setup part, where you need define three things: 1) The target database. 2) The stored procedure (or function or trigger) to sign. 3) The server-level permission(s) to grant. Everything below the line with ====== is the fixed part that you normally don't have to change. (Why is this a script and not a stored procedure? I wrote it as a script, because I figure that if you administer many servers, it is better to have as script on disk than installing a stored procedure on every server. Particularly, if you change the script by time, it's good to have a single copy of it.)

-

Here are all the steps the script takes. Note that if there is an error, the script aborts on the spot.

-
    -
  1. Validate and normalise database and procedure names. This is to make sure that the script always generates the same name for the certificate, even if you use different case or is inconsistent with specifying the schema.
    2. -
  2. Generate the name, subject and password for the certificate.
    3. -
  3. If a login with the certificate name exists, drop it.
    4. -
  4. Drop any old certificate in master.
    5. -
  5. If the procedure is signed with the old certificate, remove the signature.
    6. -
  6. As a safety precaution, remove any user created from the certificate in the target database.
    7. -
  7. Drop the certificate in the target database, if it exists there.
    8. -
  8. Create the new certificate in master.
    9. -
  9. Create a login from the certificate.
    10. -
  10. Grant permissions to the login.
    11. -
  11. Export the certificate.
    12. -
  12. Import the certificate in the target database.
    13. -
  13. If xp_cmdshell is enabled, delete the certificate files. (Else you will need to delete them manually; they are located in the same directory as the master database.)
    14. -
  14. Sign the procedure.
    15. -
  15. Remove the private key from the certificate, both in the target database and in master.
    16. -
-

If you want to test the script, you can use the bulk-load example above with some modifications: remove the certificate handling in master, and change CREATE CERTIFICATE in the user database to create a local certificate. Keep in mind that you still need to sign the procedure to grant ALTER and INSERT permissions on the table. Once you have run the script below, you can run the EXECUTE AS part in the bulk-load script to verify that the test user have all permissions. You find such a prepared version of the bulk-load example in the file grantrights-test.sql, instructions are included.

-
-- This script takes it base in the master database.
-USE master
-go
-DECLARE @procname      nvarchar(260),
-        @database      sysname,
-        @perms         nvarchar(4000),
-        @sp_executesql nvarchar(150),
-        @certname      sysname,
-        @username      sysname,
-        @subject       nvarchar(4000),
-        @pwd           char(39),
-        @sql           nvarchar(MAX),
-        @filename      nvarchar(1024),
-        @cmd           varchar(1024),
-        @debug         bit
-
--- Set up parameters: the procedure to sign and the database it belongs to.
-SELECT @procname = 'reload_sp',
-       @database = 'bulkcerttest'
-
--- The permissions to grant through the certificate. Set NULL if you only
--- want to remove current signature.
-SELECT @perms = 'ADMINISTER BULK OPERATIONS'
-
--- Run with debug or not?
-SELECT @debug = 1
-
---============================ END OF SETUP ==========================
-
--- A big TRY-CATCH block around everything to abort on first error.
-BEGIN TRY
-
--- First verify that the database exists.
-IF db_id(@database) IS NULL
-   RAISERROR('Database %s does not exist', 16, 1, @database)
-
--- Make sure that database name is quoted and appears exactly as in sys.databases.
-SELECT @database = quotename(name) FROM sys.databases WHERE name = @database
-
--- We will call sp_executesql a number of times in the target database.
-SELECT @sp_executesql = @database + '.sys.sp_executesql'
-
--- Next we verify that the procedure exists and make sure that
--- we have a normalised quoted name. We need to run a query in the
--- target database.
-SELECT @sql =
-   'SELECT @procname = MIN(quotename(s.name) + ''.'' + quotename(o.name))
-    FROM   sys.objects o
-    JOIN   sys.schemas s ON o.schema_id = s.schema_id
-    WHERE  o.object_id = object_id(@procname)'
-IF @debug = 1 PRINT @sql
-EXEC @sp_executesql @sql, N'@procname nvarchar(260) OUTPUT', @procname OUTPUT
-
-IF @procname IS NULL
-   RAISERROR('No procedure with the given name in database %s', 16, 1, @database)
-
--- Construct name, subject and password for the certificate.
-SELECT @certname = 'SIGN ' + @database + '.' + @procname,
-       @subject  = 'Signing ' + @database + '.' + @procname + ' for ' + @perms,
-       @pwd      = convert(char(36), newid()) + 'Aa0'
-
--- If a login exists for the cerficiate, we drop it
-IF EXISTS (SELECT *
-           FROM   sys.server_principals
-           WHERE  name = @certname
-             AND  type = 'C')
-BEGIN
-   SELECT @sql = 'DROP LOGIN ' + quotename(@certname)
-   IF @debug = 1 PRINT @sql
-   EXEC (@sql)
-END
-
--- And drop the certificate itself.
-IF EXISTS (SELECT * FROM sys.certificates WHERE name = @certname)
-BEGIN
-   SELECT @sql = 'DROP CERTIFICATE ' + quotename(@certname)
-   IF @debug = 1 PRINT @sql
-   EXEC(@sql)
-END
-
--- In the target database, we must remove the signature from the procedure,
--- so that we can drop the certificate.
-SELECT @sql = '
-   IF EXISTS (SELECT *
-              FROM   sys.crypt_properties cp
-              JOIN   sys.certificates c ON cp.thumbprint = c.thumbprint
-              WHERE  cp.major_id = object_id(@procname)
-                AND  c.name = @certname)
-      DROP SIGNATURE FROM ' + @procname + ' BY CERTIFICATE ' + quotename(@certname)
-IF @debug = 1 PRINT @sql
-EXEC @sp_executesql @sql, N'@certname sysname, @procname nvarchar(260)',
-                    @certname, @procname
-
--- No user should have been created from the cert, but if so, we drop it.
--- Since this may been performed by some else, we cannot trust the username
--- to be the same as the certificate name.
-SELECT @sql = '
-   SELECT @username = NULL
-   SELECT @username = dp.name
-   FROM   sys.database_principals dp
-   JOIN   sys.certificates c ON dp.sid = c.sid
-   WHERE  c.name = @certname'
-IF @debug = 1 PRINT @sql
-EXEC @sp_executesql @sql, N'@certname  sysname, @username sysname OUTPUT',
-                          @certname, @username OUTPUT
-
-IF @username IS NOT NULL
-BEGIN
-   SELECT @sql = 'DROP USER ' + quotename(@username)
-   IF @debug = 1 PRINT @sql
-   EXEC @sp_executesql @sql
-END
-
--- And here goes the old cert.
-SELECT @sql = '
-   IF EXISTS (SELECT * FROM sys.certificates WHERE name = @certname)
-      DROP CERTIFICATE ' + quotename(@certname)
-IF @debug = 1 PRINT @sql
-EXEC @sp_executesql @sql, N'@certname  sysname', @certname
-
-IF @perms IS NULL
-   PRINT 'No new permissions set, cleanup completed.'
-ELSE
-BEGIN
-   -- Now we start to (re)create things. First create the certificate in master.
-   SELECT @sql = 'CREATE CERTIFICATE ' + quotename(@certname) + '
-      ENCRYPTION BY PASSWORD = ''' + @pwd + '''
-      WITH SUBJECT = ''' + @subject + ''',
-      START_DATE = ''20020101'', EXPIRY_DATE = ''20200101'''
-   IF @debug = 1 PRINT @sql
-   EXEC(@sql)
-
-   -- And the login for the certificate.
-   SELECT @sql = 'CREATE LOGIN ' + quotename(@certname) +
-                 ' FROM CERTIFICATE ' + quotename(@certname)
-   IF @debug = 1 PRINT @sql
-   EXEC(@sql)
-
-   -- Grant the permissions.
-   SELECT @sql = 'GRANT ' + @perms + ' TO ' + quotename(@certname)
-   IF @debug = 1 PRINT @sql
-   EXEC(@sql)
-
-   -- Determine a path to where we can write the files for the certs.
-   SELECT @filename = substring(physical_name, 1, len(physical_name) -
-                                charindex('\', reverse(physical_name)) + 1) +
-                      convert(char(36), newid())
-   FROM   sys.database_files
-   WHERE  file_id = 1
-
-   -- And backup up the certificate to disk.
-   SELECT @sql = '
-      BACKUP CERTIFICATE ' + quotename(@certname) + '
-      TO FILE = ''' + @filename + '.cer' + '''
-      WITH PRIVATE KEY (FILE = ''' + @filename + '.pvk' + ''',
-           ENCRYPTION BY PASSWORD = ''' + @pwd + ''',
-           DECRYPTION BY PASSWORD = ''' + @pwd + ''')'
-   IF @debug = 1 PRINT @sql
-   EXEC(@sql)
-
-   -- And then restore in the target database.
-   SELECT @sql = '
-      CREATE CERTIFICATE ' + quotename(@certname) + '
-      FROM FILE = ''' + @filename + '.cer' + '''
-      WITH PRIVATE KEY (FILE = ''' + @filename + '.pvk' + ''',
-           ENCRYPTION BY PASSWORD = ''' + @pwd + ''',
-           DECRYPTION BY PASSWORD = ''' + @pwd + ''')'
-   IF @debug = 1 PRINT @sql
-   EXEC @sp_executesql @sql
-
-   -- If possible, delete the certs from disk.
-   SELECT @cmd = 'DEL "' + @filename + '.*"'
-   IF (SELECT value_in_use
-       FROM   sys.configurations
-       WHERE  name = 'xp_cmdshell') = 1
-   BEGIN
-      IF @debug = 1 PRINT @cmd
-      EXEC xp_cmdshell @cmd
-   END
-   ELSE
-   BEGIN
-      PRINT '******** xp_cmdshell disabled, you need run this command manually'
-      PRINT @cmd
-   END
-
-   -- We can now sign the procedure.
-   SELECT @sql = 'ADD SIGNATURE TO ' + @procname + ' BY CERTIFICATE ' +
-                  quotename(@certname) + ' WITH PASSWORD = ''' + @pwd + ''''
-   IF @debug = 1 PRINT @sql
-   EXEC @sp_executesql @sql
-
-   -- Finally, drop the private key of the cert from the databases.
-   SELECT @sql = 'ALTER CERTIFICATE ' + quotename(@certname) + ' REMOVE PRIVATE KEY'
-   IF @debug = 1 PRINT @sql
-   EXEC (@sql)
-
-   SELECT @sql = 'ALTER CERTIFICATE ' + quotename(@certname) + ' REMOVE PRIVATE KEY'
-   IF @debug = 1 PRINT @sql
-   EXEC @sp_executesql @sql
-END
-END TRY
-BEGIN CATCH
-   DECLARE @msg nvarchar(4000)
-   SELECT @msg = error_message()
-   RAISERROR(@msg, 16, 1)
-END CATCH
-

Before we move on, I like to point out a few virtues for dynamic SQL, even if they are not directly related to the topic of this article:

- -

There is a version for SQL 2012 of this script in the file grantrights-2012.sql. It is worth dwelling on the piece where the certificate is copied for a second:

-
-- Copy the certificate to the target database.
-SELECT @sql = '
-   CREATE CERTIFICATE ' + quotename(@certname) + '
-   FROM BINARY = ' + convert(varchar(MAX), 
-                         certencoded(cert_id(quotename(@certname))), 1) + '
-   WITH PRIVATE KEY (BINARY = ' + convert(varchar(MAX),
-               certprivatekey(cert_id(quotename(@certname)), @pwd, @pwd), 1) + ',
-        ENCRYPTION BY PASSWORD = ''' + @pwd + ''',
-        DECRYPTION BY PASSWORD = ''' + @pwd + ''')'
-IF @debug = 1 PRINT @sql
-EXEC @sp_executesql @sql
-

Since the script is a single batch, there is no need for temp tables. Instead, I copy the certificate in a single group of statements. The above three statements replaces no less than four groups of statements in the script above. Observe also that in the call to cert_id, I apply qoutename on @certname. This is required, since the name of the certificates includes brackets.

-

Impersonation with EXECUTE AS

-

We will now turn to the third method in SQL Server to provide - permission through stored procedures: the EXECUTE AS clause. On - the surface, EXECUTE AS is much simpler to use than certificates, but as it - works through impersonation, there are side effects which may be - unacceptable. We will also see that for granting server-level permissions, EXECUTE AS is inappropriate in environments where there are users who have full permissions on database level, but not on server-level.

-

The Statement EXECUTE AS

-

EXECUTE AS is two things. It is a clause that you can add to a stored - procedure or any other SQL module, and that is - what you can use to grant - permissions to non-privileged users. There is also a statement - EXECUTE AS, and we will look at the statement before we turn to the clause.

-

The statement EXECUTE AS permits you to switch your execution context to - impersonate another login or user. Here are - examples of the two possibilities:

-
EXECUTE AS LOGIN = 'somelogin'
-EXECUTE AS USER = 'someuser'
-

Once you want to become your original self, - you use the REVERT statement. (If you have changed databases, you will first - need to return to the database where you issued the EXECUTE AS statement.) - If the EXECUTE AS statement is executed in a lower-level scope – that is, in a - stored procedure or a batch of dynamic SQL – there is an implicit REVERT when - the scope exits. Thus if you run:

-
EXEC('EXECUTE AS LOGIN = ''frits''; SELECT SYSTEM_USER')
-SELECT SYSTEM_USER
-

the second SELECT will not return frits, but your own login name.

-

To perform EXECUTE AS you need IMPERSONATE rights on the login/user - in question. (This permission is implied on all logins if you have sysadmin - rights - and on all users in a database where you have db_owner rights.)

-

As an extra thrill, you can stack EXECUTE AS, - so you could first become login1, then user2 etc. Each REVERT would take you - back to the previous context. This would require each login/user to have - impersonation rights on the next login/user in the chain.

-

There are two apparent uses for the EXECUTE AS statement:

- -

In the latter case, the application should add the clause WITH NO REVERT or - WITH COOKIE to the EXECUTE AS statement. Else a - malicious user could inject a REVERT - statement and gain the rights of the proxy login. (As this goes a little beyond the - scope for this article, I refer you to Books Online for further details.)

-

If you use EXECUTE AS LOGIN this is exactly the same as if you had logged into SQL Server as that user directly. You will have the permissions of that login, you can access the databases that login can access and so on. I have not been able to detect any difference at all, save for the function original_login() that I will return to.

-

If you use EXECUTE AS USER it is a little different. As long as you only run commands within the database, it is just as if you had logged in as that user. But if you try to access another user database you will get an error message, and if you try to perform some server-level action like sp_who you will only get back a minimum of data, even if this user maps to a login in the sysadmin role. When you impersonate a database user you are by default sandboxed into that database. We will look more into this later. For now, I say that if you use EXECUTE AS to test permissions, you should in most cases use EXECUTE AS LOGIN. The exception is when you are testing access rights for users that are purposely created WITHOUT LOGIN.

-

I should also mention that there is an impersonation shortcut for the -EXECUTE() command, so that you can say:

-
EXECUTE(@somesql) AS LOGIN = 'somelogin'
-EXECUTE(@somesql) AS USER = 'someuser'
-

The purpose of this is the same as for the EXECUTE AS - statement; for a high-privileged user to impersonate a low-privileged - user.

-

Before I move on, I should mention that there is an older command SETUSER which also can be used for impersonation. The semantics for SETUSER are less clear than for EXECUTE AS, and SETUSER is deprecated. If you are still using SETUSER, there is all reason to change to EXECUTE AS.

-

Note: When impersonating a Windows user, it's a common mistake to put the name in brackets, but this does not work and results in somewhat cryptic error message. That is, it should be EXECUTE AS 'Domain\User', not EXECUTE AS '[Domain\User]'.

-

Using EXECUTE AS to Grant Permissions within the Database

-

So far the statement EXECUTE AS. We will now look at the clause WITH EXECUTE AS you can add to your stored procedure. As for certificates, we will first look at using the EXECUTE AS clause to - give users rights for actions within the database, and as with certificates -we will use dynamic SQL as our example.

-

To repeat, these were the presumptions for the dynamic SQL example:

-
CREATE TABLE testtbl (a int NOT NULL,
-                      b int NOT NULL)
-go
-CREATE PROCEDURE example_sp AS
-   EXEC ('SELECT a, b FROM testtbl')
-go
-GRANT EXECUTE ON example_sp TO public
-go
-

As we saw earlier, ownership chaining does not - work here. To use EXECUTE AS to make it possible for users to run - example_sp - without SELECT permission on testtbl, the steps to take are:

-
    -
  1. Create a proxy user.
    2. -
  2. Grant the proxy user the necessary permissions.
    3. -
  3. Add the EXECUTE AS clause to the stored procedure.
    4. -
-

In code, it looks like this:

-
-- Create a proxy user.
-CREATE USER exampleproxy WITHOUT LOGIN
--- Give it permissions on the table.
-GRANT SELECT ON testtbl TO exampleproxy
-go
--- Add EXECUTE AS to the procedure.
-CREATE PROCEDURE example_sp WITH EXECUTE AS 'exampleproxy' AS
-EXEC ('SELECT a, b FROM testtbl')
-go
-

Since the sole purpose for this user is to carry permissions, we create the user - WITHOUT LOGIN. As for what rights to grant to - the proxy user, the discussion in the section Granting - Rights to the Certificate User applies here as well: only grant the - permissions needed.

-

The effect of the EXECUTE AS clause is the same as of the EXECUTE AS - USER statement: that is, impersonation. As with certificates, the - user gets the rights of exampleproxy, but there are two important - differences: 1) It's not that the rights of the proxy user are added to your rights, but you are John - Malkovich. 2) If there is a call to an inner stored procedure or - a trigger fires, you are not reverted back to your original self; - you continue to execute in the context of the proxy user. It is not until you exit the - stored procedure with the EXECUTE AS clause that you return to your true self.

-

This can have drastic and far-reaching consequences, which we shall look into - in a moment. First though, a complete script that shows the use EXECUTE AS - to grant permissions for dynamic SQL. - (Again, please refer to the introductory note - about the example scripts in this article):

-
USE master
-go
--- Create a test login.
-CREATE LOGIN testuser WITH PASSWORD = 'ExECaS=0=TeST'
-go
--- Create the database to run the test in.
-CREATE DATABASE execastest
-go
-USE execastest
-go
--- Create the test user.
-CREATE USER testuser
-go
--- Create the test table.
-CREATE TABLE testtbl (a int NOT NULL,
-                      b int NOT NULL)
-INSERT testtbl (a, b) VALUES (47, 11)
-go
--- Create a proxy user and give it rights to access the test table.
-CREATE USER exampleproxy WITHOUT LOGIN
-GRANT SELECT ON testtbl TO exampleproxy
-go
--- Create two test stored procedures, one with EXECUTE AS and one
--- without, and grant permission.
-CREATE PROCEDURE noexecas_sp AS
-   SELECT SYSTEM_USER, USER, name, type, usage FROM sys.user_token
-   EXEC ('SELECT a, b FROM testtbl')
-go
-CREATE PROCEDURE example_sp WITH EXECUTE AS 'exampleproxy' AS
-   SELECT SYSTEM_USER, USER, name, type, usage FROM sys.user_token
-   EXEC ('SELECT a, b FROM testtbl')
-   EXEC noexecas_sp
-go
-GRANT EXECUTE ON example_sp TO public
-GRANT EXECUTE ON noexecas_sp TO public
-go
--- Switch to the test user.
-EXECUTE AS LOGIN = 'testuser'
-go
--- First run the procedure without EXECUTE AS. This gives a permission
--- error.
-EXEC noexecas_sp
-go
--- Then the signed procedure with EXECUTE AS. Now get the data back.
-EXEC example_sp
-go
--- Become ourselves again.
-REVERT
-go
--- Clean up
-USE master
-DROP DATABASE execastest
-DROP LOGIN testuser
-

This is similar to the script for certificates, but you will notice that the - outcome is different. When the test user runs noexecas_sp directly, he gets a - permission error as expected. But when example_sp calls noexecas_sp, - there is no permission error, as was the case when we used a certificate. And when we - look at the output from sys.user_token we see why. When noexecas_sp - is called directly, we get:

-
SYSTEM_USER     USER         name       type      usage
--------------   ------------ ---------- --------- --------------
-testuser        testuser     testuser   SQL USER  GRANT OR DENY
-testuser        testuser     public     ROLE      GRANT OR DENY
- -

But when noexecas_sp is called from example_sp, we see this:

-
SYSTEM_USER     USER         name         type      usage
---------------- -----------  -----------  --------- --------------
-S-1-9-3-2024... exampleproxy exampleproxy SQL USER  GRANT OR DENY
-S-1-9-3-2024... exampleproxy public       ROLE      GRANT OR DENY
- -

As you see, there is no trace of testuser. (The data in the column - for SYSTEM_USER is due to that - exampleproxy - was created WITHOUT LOGIN. In lieu of a login name, SYSTEM_USER returns the SID.)

-

With certificates, the permissions of the certificate user are added to the rights of the current user. This means that if there is some basic permission granted to everyone, say SELECT permission in a certain schema, you don't have to grant that permission to the certificate user. For a proxy user for EXECUTE AS you must grant all permissions needed. But this cuts both ways. Recall that certificates do not help when users have been explicitly denied permission, since DENY takes precedence over GRANT. This limitation does not exist with EXECUTE AS, since it's only the permissions of the proxy user that count.

-

The Side Effects of EXECUTE AS

-

SQL Server has a couple of functions that returns the - current login or user: SYSTEM_USER, SESSION_USER, USER, user_name(), - suser_sname() and a few more. All these are affected by the EXECUTE AS - clause: instead of returning the current login/user, they return the login or user of the identity in the EXECUTE AS - clause.

-

Now, where do you use these functions? I can think of two of very typical - cases.

- -

When you use EXECUTE AS both these schemes break. Code that implements - row-level security will return no data, or even worse, data that the - real user does not have permission to see. Auditing will be useless, as - all updates will appear to come from the same user.

-

Had the effect been - constrained only to the very procedure with the EXECUTE AS clause, it could - have been somewhat manageable. But since the impersonation lingers when - other SQL modules are invoked, for instance triggers, this means that code - that are not aware of the EXECUTE AS clause, will cease to work. Now, how is - that for backwards compatibility?

-

Another side effect concerns existing code. Say that a procedure with - EXECUTE AS calls an existing stored procedure old_sp, and this procedure - makes some assumptions of what rights the current user (= the user behind the - keyboard) has. For instance, it could use the built-in functions is_member() or - permissions() to determine whether a user is entitled to see some - data or whether some special action should be taken. When called from a procedure with EXECUTE AS, -old_sp will draw the wrong conclusions.

-

There are also concerns for the DBA who likes to monitor his system with help of Profiler and various DMVs, that I will look into separately a little later.

-

What can you do to mitigate these consequences? We will look at four - different possibilities: 1) EXECUTE AS CALLER, 2) original_login(), 3) SET - CONTEXT_INFO and 4) DDL triggers. You - will find none of these measures address the issues very satisfactorily. The first - only solves a minor part of the problem and the next two require you to - rewrite existing code. The last method performs - a solid job – by outlawing the feature altogether.

-

Before looking into the methods above, we need to look at the EXECUTE AS clause in - full, to see its full powers – or I am tempted to say its full horrors.

-

WITH EXECUTE AS CALLER | SELF | OWNER

-

Rather than specifying an explicit user in the EXECUTE AS clause, you can specify any - of the keywords CALLER, OWNER and SELF.

-

CALLER is innocent. This means that the procedure should execute in the - context of the calling user. That is, how stored procedures how normally work, so EXECUTE AS CALLER is merely a way of explicitly expressing - the default.

-

EXECUTE AS SELF is short for EXECUTE AS 'yourusername'. That is, if you - create a procedure and add WITH EXECUTE AS SELF to it, anyone who runs the - procedure will execute with your permissions. (And anything they update, you - will be held accountable for.)

-

EXECUTE AS OWNER, finally, means that the procedure executes in the context - of the procedure owner. As I discussed in the - beginning of the article this is normally the schema owner. Thus, if the procedure is created in the dbo - schema, or any other schema owned by the database owner, the procedure will - execute with permissions to do anything in the database!

-

Here are some serious implications. If all you care about is - simplicity, then you can ignore all about creating proxy users and granting them - permissions. All you need to do is:

-
CREATE PROCEDURE example_sp WITH EXECUTE AS OWNER AS
-   --SELECT SYSTEM_USER, USER, name, type, usage FROM sys.user_token
-   EXEC ('SELECT a, b FROM testtbl')
-go
-

And no more permissions problems!

-

But remember that philosophy about multiple lines - of defence in the beginning of - this text. As we discussed for certificates, by using a dedicated proxy user you add one more line of defence, - so if your procedure would be open for - SQL injection, an exploiter can only do a limited amount of harm. - On the other hand, if you use EXECUTE AS OWNER, the database will be wide open to an - intruder. (Access outside the database is another matter, that we will come - back to.) Again, keep in mind that even if your use of dynamic SQL is tight - and free from injection vulnerabilities, someone who modifies the procedure - tomorrow may make a blunder and change that.

-

Note here also a possible fatal consequence for a row-level security scheme. - It is not unlikely that such scheme is set up so that dbo - is permitted see all rows. This means that casual use of EXECUTE AS can result int users having access to data they don't have permission - to see.

-

If you are the DBA (or at least the database owner) and are fortunate to have - full control of all code that is added to the database (because you write all - the code, or at least review all of it), it is only up to you. But if you are - responsible for a larger application with many stored procedures, contributed - by many developers, be afraid, be very afraid. One day you find that your auditing - records say that a lot of data was changed by dbo, instead of the - actual user. Some developer ran into an urgent problem with his dynamic SQL, - posted a question on the forums and quickly learnt the four magic words WITH EXECUTE AS OWNER. - His problems were solved, but yours had only just begun.

-

We will now look into what methods you can use to reduce the impact - of the EXECUTE AS clause.

-

The EXECUTE AS CALLER statement

-

It's possible to do this in a procedure with an EXECUTE AS clause:

-
CREATE PROCEDURE some_sp WITH EXECUTE AS 'proxyuser' AS
-   DECLARE @realuser sysname
-   EXECUTE AS CALLER
-   SELECT @realuser = SYSTEM_USER
-   REVERT
-   -- Do whatever requires extra privileges
-go
-

That is, with the EXECUTE AS CALLER statement, you revert - to the context of the - caller, and you can find out who actually - called the procedure. Provided, that is, there were no impersonation on upper - levels.

-

- If the procedure is a longer one, and there is only one action that needs - special privileges, for instance dynamic SQL, you can even do:

-
CREATE PROCEDURE someother_sp WITH EXECUTE AS 'proxyuser' AS
-   DECLARE ...
-   EXECUTE AS CALLER
-   ...
-   -- Here we need the powers of the proxy user
-   REVERT
-   EXEC sp_executesql @sql, ...   -- Or something else which needs privs.
-   EXECUTE AS CALLER
-   -- Rest of the procedure
-

While this certainly is recommendable from the philosophy of not using more - permissions than necessary, it takes more effort than just adding the EXECUTE - AS clause in the beginning and run with it. It would be more reasonable to - write:

-
CREATE PROCEDURE someother_sp AS
-   DECLARE ...
-   ...
-   -- Here we need the powers of the proxy user
-   EXECUTE AS USER = 'proxyuser'
-   EXEC sp_executesql @sql, ...   -- Or something else which needs privs.
-   REVERT
-   -- Rest of the procedure
-

Alas, this does not work An unprivileged user will get a permission error, - as the - rights to impersonate someone can not be given to a user through the body of - a stored procedure, only the header. (Of course, by signing the procedure with a certificate you can - grant that permission, but if you use certificates, you don't really need - EXECUTE AS at all.)

-

There are many situations where EXECUTE AS CALLER does not help. If that - dynamic SQL accesses a view with row-level security, it does not help to save - the real user's name into a variable, as the call to SYSTEM_USER (or - similar) is in the text of the view itself. The same applies if the dynamic SQL - performs an update, and the auditing is based on a trigger or a default - constraint. Furthermore, if a procedure sp1 with - an EXECUTE AS clause calls sp2, sp2 cannot use - EXECUTE AS CALLER to set its context to the - caller of sp1, as the caller to sp2 is the user in the - EXECUTE AS clause in sp1.

-

On top of that, EXECUTE AS CALLER requires a conscious action - from the - programmer. Someone who just heard about EXECUTE AS OWNER on the forums - is not going to get through that extra hoop.

-

original_login()

-

While SYSTEM_USER, USER, user_name() etc - all are affected by EXECUTE AS, - there is one function that returns the login that originally - connected to SQL Server: original_login().

-

Thus, anywhere you have schemes for row-level security or code for auditing it's better to use original_login() rather than -SYSTEM_USER to be protected against the risk that EXECUTE AS leads to incorrect auditing or users getting access to data they are not entitled to see. At least as long as you - are not using "application proxies", - something I will return to in -the next section.

-

If your row-level security and auditing schemes are based on the username in the database rather than the server-level login name, you are likely - to ask for an original_user() - only to find that there isn't such a function. In this case you will have to rework your -scheme to use logins instead.

-

Why isn't there any original_user()? Actually, there is a good reason. - Things get complicated with cross-database access. Say that a - procedure sp1 in database A has an EXECUTE AS clause for - user1, and sp1 invokes sp2 in database B to which - user1 has access. sp1 is invoked by user2 that maps to - login2, but login2 has no access to database B. Say now - that sp2 calls this fictive original_user(), what should it return? - user2 is flat wrong in the given context. NULL? Are your auditing columns - nullable? Mine aren't.

-

If you are really paranoid and want to make sure that your procedure are not - run with elevated privileges because the calling procedure has an EXECUTE AS - clause, you could add this test to the beginning of your procedure:

-
IF SYSTEM_USER <> original_login()
-BEGIN
-   RAISERROR('This procedure does not support impersonated users', 16, 1)
-   RETURN 1
-END
-

SET CONTEXT_INFO

-

original_login() works as long as the users themselves log into SQL Server - with their personal login. But consider the case of an "application proxy". That is, the application authenticates users outside SQL Server, and the proxy login issues EXECUTE AS (or SETUSER for a legacy application) on the behalf of the - actual user. Guess what original_login() will return in this case? That's - right, the name for the application's proxy login. Not a very useful - piece of information. While SQL 2005 was still in beta, I submitted a Connect item that asked for a way to retrieve the full impersonation stack to address this situation. It hasn't happened yet.

-

One possible way out here is the command SET CONTEXT_INFO and the - context_info() function. SET CONTEXT_INFO was added already in SQL 2000, but - it may not be widely known. It sets a binary value of 128 bytes that you can retrieve with the - context_info() function.

-

Here is how you would use it. When connecting for a user, the application - would do something like:

-
DECLARE @contextinfo varbinary(128)
-SELECT @contextinfo = convert(varbinary(128), N'JoeCool')
-SET CONTEXT_INFO @contextinfo
-

A table with an auditing column could look like this:

-
CREATE TABLE audited
-   (somedata int NOT NULL,
-    moduser  sysname NOT NULL
-       CONSTRAINT def_moduser DEFAULT
-          coalesce(convert(nvarchar(64),
-                      substring(context_info(), 1, charindex(0x0000, context_info()) - 1)),
-                   original_login())
-)
-go
-

The expression to get data from context_info() is -surprisingly complex; this is because context_info() returns -binary(128), so we need to strip the trailing zeroes. -Despite the name, charindex() works on binary data too. We -must specify 0x0000 to find where the zeroes start, since with nvarchar, -every second byte is often 0 for data using the Latin alphabet.

-

On top of that, we use coalesce() with original_login() as a second argument to have a - fallback alternative, in case SET CONTEXT_INFO never was issued, for instance - because the action was performed by an administrator who logged in directly to SQL - Server from SQL Server Management Studio.

-

I feel obliged to point out that the solution with SET CONTEXT_INFO is not entirely - secure. - If there are SQL injection holes in - the application, a malicious user could inject a SET CONTEXT_INFO command to - hide his identity. This could permit him to do actions anonymously, and - to access data from row-level security schemes that he should not see.

-

One more thing to add about SET CONTEXT_INFO: normally the effect of a SET - statement issued in a stored procedure is reverted when the procedure exits. -SET CONTEXT_INFO is an exception to this rule, and the effect of SET CONTEXT_INFO is always global to the connection.

-

Using DDL Triggers to Stop All This

-

If you are a DBA who is not in the position that you can review all code that - is deployed into the database (or a lead programmer/database architect who - cannot review all code that is checked into the version-control system) and - you are scared of the damage that EXECUTE AS could cause to your application, you may ask: is there a - way to stop all this? After all, there is no need to use EXECUTE AS - to grant permissions, when you can use certificates without side - effects.

-

Microsoft touts SQL Server as "secure by default", so you - would expect a knob to control whether the EXECUTE AS clause is available, and you would - expect that knob to be in the OFF position by default. Not so. There is no - knob at all. But you can implement your own.

-

If you are the permissive sort of person, you may be content to every once in - a while run:

-
SELECT module = object_name(object_id),
-       execute_as = CASE m.execute_as_principal_id
-                         WHEN -2 THEN 'OWNER'
-                         ELSE d.name
-                    END
-FROM   sys.sql_modules m
-LEFT   JOIN sys.database_principals d
-          ON m.execute_as_principal_id = d.principal_id
-WHERE  m.execute_as_principal_id IS NOT NULL
-

This displays which modules have been decorated with the EXECUTE AS - clause and with - which user name.

-

If you are the more evil sort of person, then you can put this DDL - trigger in place:

-
CREATE TRIGGER stop_execute_as ON DATABASE
-  FOR CREATE_PROCEDURE, ALTER_PROCEDURE,
-      CREATE_FUNCTION, ALTER_FUNCTION,
-      CREATE_TRIGGER, ALTER_TRIGGER AS
-DECLARE @eventdata   xml,
-        @schema      sysname,
-        @object_name sysname,
-        @object_id   int,
-        @msg         nvarchar(255)
-
-- Get the schema and name for the object created/altered.
-SELECT @eventdata = eventdata()
-SELECT @schema = C.value(N'SchemaName[1]', 'nvarchar(128)'),
-       @object_name = C.value(N'ObjectName[1]', 'nvarchar(128)')
-FROM   @eventdata.nodes('/EVENT_INSTANCE') AS E(C)
-
-- Find its object id.
-SELECT @object_id = o.object_id
-FROM   sys.objects o
-JOIN   sys.schemas s ON o.schema_id = s.schema_id
-WHERE  o.name = @object_name
-  AND  s.name = @schema
-
-- If we don't find it, it may be because the creator does not have
--- have permission on the object. (Yes, this can happen.)
-IF @object_id IS NULL
-BEGIN
-   SELECT @msg = 'Could not retrieve object id for [%s].[%s], operation aborted'
-   RAISERROR(@msg, 16, 1, @schema, @object_name)
-   ROLLBACK TRANSACTION
-   RETURN
-END
-
-- Finally check that the catalog views whether the module has any
--- EXECUTE AS clause.
-IF EXISTS (SELECT *
-           FROM   sys.sql_modules
-           WHERE  object_id = @object_id
-             AND  execute_as_principal_id IS NOT NULL)
-BEGIN
-   ROLLBACK TRANSACTION
-   SELECT @msg = 'Module [%s].[%s] has an EXECUTE AS clause. ' +
-                 'This is not permitted in this database.'
-   RAISERROR (@msg, 16, 1, @schema, @object_name)
-   RETURN
-END
-go
-

The trigger first retrieves the schema and object names for the created - object from the eventdata() function. This function returns an XML - document, and we use XQuery to extract the data we need. Next we translate - the object name to an id. We check that we are actually able to do this. (Since the owner of a procedure is the schema owner, it is possible to have a user that is permitted to create - a procedure without being permitted to see the definition of it.) Finally there is the check that the - module does not have any EXECUTE AS.

-

Variations of this theme include checking execute_as_principal_id for - -2 (OWNER) and power users, or permit - EXECUTE AS if the proxy user does not map to - a login. (That is, a user created WITHOUT LOGIN.)

-

Would anyone be this evil? Well, if you have an auditing scheme that relies - on SYSTEM_USER or similar function, and you don't want to rewrite your code - right now, do you have any choice?

-

Note: If you are on SQL 2008, you may ask if this could be implemented with Policy-Based Management. It probably can, but I would not recommend that use you the On Prevent option in PBM, as PBM may silently decide to turn off checking if it deems your conditions to be too complex. (See this Connect bug for details.) Possibly you could use PBM to monitor the use of EXECUTE AS.

-

EXECUTE AS and Monitoring

-

As I mentioned, EXECUTE AS also has implications for the DBA who likes to monitor his system. Say that there is a procedure which has the heading:

-
CREATE PROCEDURE some_sp WITH EXECUTE AS 'proxyuser' AS
-

Say that the user Nisse runs this procedure, and there is a trace with captures the statements in this procedure. What will the column LoginName display? That depends. If proxyuser was created from a login with the same name, the value in LoginName will be proxyuser. If proxyuser was created WITHOUT LOGIN, the value will be a SID, that is, a value starts like S-1-9-3-913356... But in no case the name Nisse will be displayed.

-

This has some ugly ramifications. If you commonly apply filters on LoginName, EXECUTE AS can cause users to fall off the radar for the duration of the procedure with the clause. If you rely on tracing for auditing, EXECUTE AS can also result in the wrong person being credited/blamed for a certain action.

-

LoginName is not the only column that is affected, but also the column NTUserName, although this column does not always change. It changes if the impersonated user is a Windows user or a user created WITHOUT LOGIN, but not if the user is created from an SQL Server login. At least, that is what my quick testing indicates.

-

This also extends do DMVs like sys.dm_exec_sessions. The columns login_name and nt_user_name behaves like LoginName and NTUserName in Profiler and reflect the name of the impersonated user. The same is true for sysprocesses etc.

-

Thankfully, there are alternatives. In Profiler you can use the column SessionLoginName. The value in this column corresponds to the value returned by the function original_login() and thus it will never change during the lifetime of the connection. The column is not visible by default, but you have to check the box Show all columns to find it. (Why SessionLoginName is not visible by default, while LoginName is? As I recall, SessionLoginName was added in SP2 of SQL 2005, and I guess Microsoft did not want to meddle with the existing templates.) You could define your own template, so that you don't have to remember to add it every time.

-

Likewise, in sys.dm_exec_sessions there is the column original_login_name, which is one of the columns at end of the table; it was added in SP2 of SQL 2005. In sysprocesses, there is no value corresponding to original_login(), but sysprocesses is a compatibility view, which Microsoft prefers us not to use.

-

EXECUTE AS and Access Outside the Database

-

So far we have looked at using EXECUTE AS to give permissions within a single database. What happens if you try to access other databases or perform an action that requires a server-level permission?

-

Answer: you run into a roadblock. Consider this procedure created in some -other database than AdventureWorks:

-
CREATE PROCEDURE crossdb WITH EXECUTE AS OWNER AS
-   SELECT COUNT(*) FROM AdventureWorks.Person.Address
-go
-EXEC crossdb
-

If you run this logged in as sa you get:

-
Server: Msg 916, Level 14, State 1, Procedure crossdb, Line 2
-The server principal "sa" is not able to access the database "AdventureWorks"
-under the current security context.
-

Since sa usually can access everything, this comes as quite unexpected. But - this is because there is a safeguard here. The EXECUTE AS clause always impersonates a database user, never a server login. And when you impersonate a user, you are sandboxed into the current database, -and you are denied any access outside that database. This applies to the EXECUTE AS clause in a procedure as well as the statement EXECUTE AS USER. (But not to EXECUTE AS LOGIN.)

-

The same is true for server-level permissions. If you try:

-
CREATE PROCEDURE reload_sp WITH EXECUTE AS OWNER AS
-   TRUNCATE TABLE reloadable
-   EXEC('BULK INSERT reloadable FROM ''C:\temp\reloadtest.csv''
-         WITH (FIELDTERMINATOR='','', ROWTERMINATOR=''\n'')')
-go
-EXEC reload_sp
-

Even if you are logged with sysadmin rights, you will get this error message:

-
Msg 4834, Level 16, State 4, Line 2
-You do not have permission to use the bulk load statement.
-

To open the sandbox, you must open two doors. If the database is owned by a user with sysadmin permission, one of the doors are already open. The other door is this statement:

-
ALTER DATABASE db SET TRUSTWORTHY ON
-

If the database is trustworthy, and you impersonate user1 with the statement EXECUTE AS USER = 'user1' or the clause EXECUTE AS 'user1' in a stored procedure, you will be able to exercise any rights that user1 may have in other databases or on server level.

-

To set a database as trustworthy you need sysadmin rights. And this is by no means a step you should take casually. There are some scenarios where this setting is safe play, but there are also many where it opens a glaring hole in your server security. I will discuss this in detail, but to keep the focus of the main topic – granting permissions to stored procedures – I will first show how to use EXECUTE AS to grant bulk-copy permissions.

-

Using EXECUTE AS to Give Bulk-Copy Permissions

-

As with certificates, using EXECUTE AS to give bulk-copy permissions takes - a little more work. The steps are:

-
    -
  1. Create a proxy login, in the master database.
    2. -
  2. Grant the proxy login ADMINISTER BULK OPERATIONS. Again in master.
    3. -
  3. Mark the target database as trustworthy.
    4. -
  4. Switch to the application database.
    5. -
  5. Create a user for the proxy login.
    6. -
  6. Grant the proxy user ALTER and INSERT on the target table.
    7. -
  7. Add an EXECUTE AS clause to the procedure.
    8. -
-

As there is not much new here, I will just make a few comments, before I give - you a complete script with all steps and a test case.

-

Since ADMINISTER BULK OPERATIONS is a server-level permission, we need to create a - full login in this case. It's a good idea to revoke the proxy login the - right to connect to SQL, and I do this in the test script below.

-

As discussed in the previous section, we need to mark the database as trustworthy to break out from the sandbox.

-

Just like we did with certificates, we must put the BULK INSERT statement in dynamic SQL, - because of a - bug in SQL Server.

-

So here is the test script for using BULK INSERT with EXECUTE AS. - (And as always, the introductory note on the - examples applies):

-
USE master
-go
--- Create a test file for bulkload.
-EXEC xp_cmdshell 'ECHO 978,123,234 > C:\temp\reloadtest.csv', no_output
-EXEC xp_cmdshell 'ECHO -98,13,85 >> C:\temp\reloadtest.csv', no_output
-go
-CREATE LOGIN testuser WITH PASSWORD = 'ExECaS=0=TeST'
-go
--- Create the database to run the test in.
-CREATE DATABASE bulkcopytest
-go
--- Mark the database as trustworthy.
-ALTER DATABASE bulkcopytest SET TRUSTWORTHY ON
-go
--- Create a proxy login, which is to have the bulk-copy rights.
-CREATE LOGIN bulkproxy WITH PASSWORD = 'lkjSeF&hskldjh?löKDdf/jlk98sdfjälksdjg'
-go
--- Grant rights for the proxy login and make it unable to login.
-GRANT ADMINISTER BULK OPERATIONS TO bulkproxy
-REVOKE CONNECT SQL FROM bulkproxy
-go
--- Move to test database.
-USE bulkcopytest
-go
--- Create the non-priv user and the proxy user.
-CREATE USER testuser
-CREATE USER bulkproxy
-go
--- A test table.
-CREATE TABLE reloadable (a int NOT NULL,
-                         b int NOT NULL,
-                         c int NOT NULL)
-go
--- Test procedure with BULK INSERT.
-CREATE PROCEDURE reload_sp WITH EXECUTE AS 'bulkproxy' AS
-   TRUNCATE TABLE reloadable
-   EXEC('BULK INSERT reloadable FROM ''C:\temp\reloadtest.csv''
-         WITH (FIELDTERMINATOR='','', ROWTERMINATOR=''\n'')')
-go
--- Give test user right to execute them.
-GRANT EXECUTE ON reload_sp TO public
-go
--- Grant the proxy user rights to truncate and insert to the test table.
-GRANT ALTER, INSERT ON reloadable TO bulkproxy
-go
--- Insert some test data. If test succeeds, this data should disappear.
-INSERT reloadable (a, b, c) VALUES (12, 23, 34)
-go
--- Switch to the test user.
-EXECUTE AS LOGIN = 'testuser'
-go
--- Run the bulk load.
-EXEC reload_sp
-go
--- Back to ourselves.
-REVERT
-go
--- Verify that bulk load succeeded.
-SELECT a, b, c FROM reloadable
-go
-REVERT
-go
--- Clean up.
-USE master
-DROP DATABASE bulkcopytest
-DROP LOGIN bulkproxy
-DROP LOGIN testuser
-EXEC xp_cmdshell 'DEL C:\temp\reloadtest.csv', no_output
-
-

Considerations on TRUSTWORTHY

-

Exactly how dangerous is TRUSTWORTHY? Permit me to approach this question in a somewhat roundabout way. For many years, this article just said that you should think twice before turning on TRUSTWORTHY, but did not go into details. Then one day, I got a mail from a reader who asked a question that got me thinking.

-

My correspondent had a problem. He wanted to grant access to BULK INSERT, and used my example for EXECUTE AS as a template, but he could not get it to work. There was a twist in his case, he wanted the database owner to be a plain server login, and not a member of sysadmin.

-

I sat down and played with my bulk-copy example and I was able to confirm his findings. I read through the topic - Extending Database Impersonation by Using EXECUTE AS in Books Online and this was when I learnt that the sandbox has two doors that both must be open. Say there is a database A, and in this database we impersonate a user U – with the statement EXECUTE AS USER or the EXECUTE AS clause in a stored procedure. To be able to exercise the rights that the user U may have outside the database, the following conditions must be true.

- - - - - - -
1.The database A must be TRUSTWORTHY.
2a. - For access to another database B, the owner of A must have been granted the permission AUTHENTICATE in the database B.
2b.For actions that require server-level permissions, the owner of A must have been granted the permission AUTHENTICATE SERVER.
-

So did I answer to my correspondent that he should grant his database owner AUTHENTICATE SERVER? No. I had a nagging feeling that there was something hiding here, and after some thinking, I came to the realisation that this was just a different way to give the DB owner the possibility to do everything on the server – that is, the rights of sysadmin. How can it be? Consider this scenario:

-

Say that you are DBA for a server that hosts many databases, owned by various people in your organisation. One database owner, let's call him David B Owner, comes to you with this stored procedure to perform BULK INSERT. He now needs your help to get the server-level permissions for the procedure to work. We have already looked at how do this with certificates, and you have learnt that this way you can have full control what permissions you have granted to what code. If David changes his code, he has to come to you again so you can sign it anew.

-

But assume that David B Owner persuades you to instead take the route with EXECUTE AS. David has already written a procedure and tested it out on his personal server, and you are swamped with other things. And maybe you don't want David come to you again and again, every time he changes the procedure. After all, what damage can you do with ADMINISTER BULK OPERATIONS alone? Following the example in the previous section, you create the proxy login which you grant ADMINISTER BULK OPERATIONS, you make David's database trustworthy, and you grant David AUTHENTICATE SERVER. David merrily leaves your office. But what exactly did you do now? Did you in any way ensure that all David's database can do on server level is BULK INSERT?

-

Back at his desk, David runs this in his database:

-
CREATE USER [Domain\ServerDBA]        -- That's you!
-go
-EXECUTE AS USER = 'Domain\ServerDBA'
-

That is, David creates a user for you in his database, and then he impersonates that user. Since he owns the database, he has full permissions to do anything in the database, including these two actions. As long as at least one of the two doors in the sandbox are closed, David can only play that he is you inside in his own database. But you were kind to open both doors to him, and now he has all powers on the server that you have. On top of all, auditing will give you the blame for what he is doing, unless auditing is based on original_login() and the similar columns in Profiler and the DMVs. When David is done, he can drop you as a user from the database to cover his tracks.

-

This is a classical example of privilege elevation, and the sandbox exists precisely to prevent this from happening by default.

-

In this last example, a non-privileged user was the database owner, but in many shops is customary to have sa or some dedicated SQL login as the database owner for all databases. (The problem with having individuals as database owners is that when people leave the company the DBA is not always informed when the user is dropped from the Active Directory, leaving the DBA with a database owned by an orphaned user.) But there are still people like Anna DeMin and David B Owner who are application admins or whatever, and they are member of db_owner in that database. In this scenario, what does it mean to set the database as trustworthy?

-

If the database is owned by sa (or some other user with sysadmin rights) the situation is just like above. Since sa is the owner, one of the doors of the sandbox is open from the start. If you make the database trustworthy, any person with db_owner rights can impersonate a server login with sysadmin rights just and do whatever he likes. What if the databases are owned by a generic login which has no other server permissions than owning all the databases? In this case, the door to server-level permission is closed, but the doors to all user databases are open. A malicious user with db_owner rights can do

-
EXECUTE AS USER = 'dbo'
-

and if the database is trustworthy, he can access all databases on the server owned by that login with full permission, which means that the user can read and write data he is not authorised to access.

-

In these examples I have assumed that the evil user is in the db_owner role. But db_owner is not required. More precisely, it's sufficient to have permission create users in the database and and have permission to impersonate users. Being member of db_securityadmin and db_accessadmin is sufficient. You should also not overlook the possibility that two users with supplementing permissions can work together.

-

You have now seen that TRUSTWORTHY is a switch that applied casually that can be utilised by malicious persons. But is this switch ever secure?

-

Certainly. When it comes to give plain users server-level permission through stored procedures, EXECUTE AS + TRUSTWORTHY is safe if all persons who have elevated permissions in the database also are members of sysadmin or have CONTROL SERVER. In this trivial case, there is no person who can use impersonation to elevate his permissions. This scenario is not unlikely on a server that is dedicated to a single application. However, keep in mind that one day you may be oblivious and grant a person you don't trust sysadmin rights to have db_owner permissions in that database. Maybe a support person for a vendor application. Maybe a junior DBA (who may prove to be less than junior when it comes to exploit security holes!) So while EXECUTE AS may seem simpler, I would say that for server-level access, you should always use certificates. Keep in mind that with certificates you have full control over what permissions you grant. Even if you don't want to review Anna's and David's bulk-insert procedures over and over again but instead give them the password to the certificate, the only permission they can ever abuse is ADMINISTER BULK OPERATIONS. Whereas with EXECUTE AS and a trustworthy database, there are no restrictions at all.

-

Cross-Database Access

-

In the previous section I showed that it is dangerous to make a database trustworthy, if all databases are owned by the same generic user. But if all databases have individual owners, it's a different matter. Note here that individual owners do not have to be physical persons, but it could be a generic login for each database. If this is the situation, there are a few scenarios for cross-database access where EXECUTE AS + TRUSTWORTHY may be perfectly acceptable.

-

Consider an application that consists of several databases all with the same owner, and there is a need for stored procedures to access data in more than one database. In this article we have looked three alternatives to address this situation: 1) Database chaining and the database option DB_CHAINING. 2) Certificates. 3) EXCUTE AS + Trustworthy. If the requirement is that every application database should be able to access all the other databases, then database chaining may be the simplest solution.

-

But say that there is only one database where there are stored procedures with cross-database access, and you don't want to permit access from the other databases. Since DB_CHAINING must be enabled for all databases, this rules out this option. The advantage with EXECUTE AS + TRUSTWORTHY over database chaining is that you can select which databases you make trustworthy. Of course, if you decide to use EXECUTE AS for cross-database access, you need to make sure that you can handle the consequences of impersonation and make sure that you don't rely on SYSTEM_USER et al, but only use original_login() or context_info(). If not, certificates are, as always, an option.

-

Here is a second scenario: there are two databases, A and B, which are part of different, but related, applications, and the databases have different owners. There is a need to access data in database B from A. To do this with EXECUTE AS, database A must be TRUSTWORTHY, and furthermore the database owner of A must be granted the permission AUTHENTICATE in database B. For this to be permissible, all users with db_owner or similar rights in database A must be entitled to see all data in database B, since they now can do:

-
CREATE USER owner_of_database_B
-go
-EXECUTE AS USER = 'owner_of_database_B'
-

They can now do whatever they want in database B. To some extent this is a matter about trust. If the owner of database B trusts all users in database B not to mess up his database, he can grant AUTHENTICATE to the owner of database A. After all, having indirect permission through AUTHENTICATE is from a legal point of view not the same as being added to the db_owner role in the database. Still owner of B is taking a risk, and personally, I say if there is sensitive data in the database he should not accept to grant AUTHENTICATE to the owner of A, but insist on certificate signing, and review all code that accesses his database.

-

Obviously, the point about trust can be made about server permissions as well. If you trust Anna DeMin and David B Owner, you can grant them AUTHENTICATE SERVER. But in my opinion, there is too much at stake here to even consider this.

-

I like to stress again, that a presumption for it to be acceptable to make a database TRUSTWORTHY is that the database is owned by a user specific to that database, or group of databases. As soon there is a generic owner who owns unrelated databases, TRUSTWORTHY cannot be considered permissible. (Unless there never are any users who are only db_owner in a subset of the databases.)

-

Starting Jobs

-

We looked previously at how we could make it possible for users of an application to start a certain job with help of certificates. The solution is somewhat dubious, since it requires you to counter-sign three procedures in msdb. Could this be done better with EXECUTE AS without compromising security? I think so. Here are the steps for a possible solution.

-
    -
  1. The source database must have an individual owner.
    2. -
  2. The source database must be TRUSTWORTHY.
    3. -
  3. The database owner is added to msdb and granted AUTHENTICATE in that database.
    4. -
  4. Create a login-less user jobstartuser in msdb and add this user to SQLAgentOperatorRole.
    5. -
  5. You create a stored procedure in msdb to start the job in question. The procedure should have EXECUTE AS 'jobstartuser'.
    6. -
  6. The database owner is granted EXECUTE permission on this procedure.
    7. -
  7. The database owner creates a stored procedure in his database with EXECUTE AS 'dbo' that calls the procedure in msdb.
    8. -
-

The reader may be shocked here, since we have learnt that if you own a trustworthy database and have AUTHENTICATE permission in another database, then you can get the power of the owner of that database by creating a user for him in your own database and then impersonate him. And yet I'm suggesting this? And with msdb, a system database?

-

Yes. You see, there is a special case. The owner of msdb is, by default, sa. And if you try any of:

-
CREATE USER sa
-CREATE USER Nisse FROM LOGIN sa
-

You will be told:

-
Msg 15405, Level 16, State 1, Line 1
-Cannot use the special principal 'sa'.
-

You may ask: what happens if I create a user for someone I know is member of sysadmin and impersonate that user? The answer is that in this case, you will access msdb as guest. As long as that person is not an explicit member of msdb, that is. And there is a weakness with this solution. There is maybe little reason to add members of sysadmin to msdb. But what if there are operators or junior DBAs who are not sysadmin, but who are entitled to administer jobs? They have to be users in msdb, so they can be added to the various SQL Server Agent roles. And with AUTHENTICATE permission in msdb, the owner of database A can impersonate these guys and do things he should not be permitted to.

-

There is potentially a second problem with this solution. Who says that it is supported to put user procedures in msdb? Maybe it is, but I have not been able to find an answer in either direction. When I asked in our internal MVP forum, the only reply I got was Why don't you create the procedure in master? At first I did not see the point, as it would only serve to make the solution to be more complicated. Sure, no risk that the database owner would be able to impersonate operators in msdb, but instead he would have to be granted AUTHENTICATE in master.

-

But after some more thinking I realised that using an intermediate database was the right thing, but it should not be master, but a dedicated database. So here is the modified list of steps:

-
    -
  1. The source database must have an individual owner.
    2. -
  2. The source database must be TRUSTWORTHY.
    3. -
  3. Create an intermediate database, call it jobstarter. This database - MUST -be owned by sa.
    4. -
  4. Make jobstarter TRUSTWORTHY.
    5. -
  5. Create a login jobstartuser who is to be the proxy user to start jobs. Deny this login the CONNECT SQL, that is, the right to log in to SQL Server.
    6. -
  6. Add jobstartuser to msdb and make it member of the SQLAgentOperatorRole.
    7. -
  7. Add jobstartuser to the jobstarter database.
    8. -
  8. Add the owner of the source database to jobstarter, and grant him AUTHENTICATE.
    9. -
  9. In jobstarter create a procedure that calls sp_start_job for the specific job. The procedure should have EXECUTE AS 'jobstartuser'.
    10. -
  10. Grant the database owner EXECUTE permission on the procedure.
    11. -
  11. The database owner adds a procedure to his database with EXECUTE AS 'dbo' that calls the procedure in jobstarter.
    12. -
-

When I devised this solution, I debated with myself whether I should really have this jobstartuser. If you instead use EXECUTE AS OWNER in the procedure that calls sp_start_job, there is no need to create this extra login. Since I have advocated that you should never grant more permissions than needed, I chose to follow this line. But in this particular case, I cannot really blame you if you prefer EXECUTE AS OWNER. And you could argue that this is safer, since if jobstartuser is mistakenly granted permissions in jobstarter it should not have, this could lead to a security hole.

-

Before I show you an example script, I like to point out an important difference to the solution with certificates. In that solution, there is no code in msdb, nor is there any intermediate database. Instead the procedure that calls sp_start_job is in the source database. This is possible with certificates, since the DBA can have full control over what can be done with the ceritificate, for instance by dropping the private key. But when we use EXECUTE AS, the call to sp_start_job must be outside of reach for the database owner.

-

Here is a complete script that demonstrates the solution (the introductory remark on the example scripts applies as always). If you want to run this, you need to create a job called Testjob. It does not have to do anything particularly meaningful.

-
USE master
-go
--- Create a login for a database owner as well plain test user.
-CREATE LOGIN databaseowner WITH PASSWORD = 'JoBS=tA7RTte5t'
-CREATE LOGIN testuser WITH PASSWORD = 'eXEc=a$=TeST'
-CREATE LOGIN jobstartuser WITH PASSWORD = 'No login !!'
-DENY CONNECT SQL TO jobstartuser
-go
--- Create test database and set owner. We set the database trustworthy.
-CREATE DATABASE jobstarttest
-ALTER AUTHORIZATION ON DATABASE::jobstarttest TO databaseowner
-ALTER DATABASE jobstarttest SET TRUSTWORTHY ON
-go
--- Create an intermediate database. This database *must* be owned by sa.
--- This database should never have any non-sysadmin privileged users.
-CREATE DATABASE jobstarter
-ALTER AUTHORIZATION ON DATABASE::jobstarter TO sa
-ALTER DATABASE jobstarter SET TRUSTWORTHY ON
-go
--- Next stop is msdb.
-go
-USE msdb
-go
--- Create a user for jobstartuser and give permissions.
-CREATE USER jobstartuser
-EXEC sp_addrolemember SQLAgentOperatorRole, jobstartuser
-go
--- Set up things the intermediate database.
-USE jobstarter
-go
--- Create a user for the jobstartuser.
-CREATE USER jobstartuser
-go
--- We add the database owner as a user and grant him AUTHENTICATE.
-CREATE USER databaseowner
-GRANT AUTHENTICATE TO databaseowner
-go
--- Create a procedure to start a certain job.
-CREATE PROCEDURE start_this_job WITH EXECUTE AS 'jobstartuser' AS
-   EXEC msdb..sp_start_job 'Testjob'
-go
--- Permit the databaseowner to run this procedure.
-GRANT EXECUTE ON start_this_job TO databaseowner
-go
--- Move to test database.
-USE jobstarttest
-go
--- Create a database user for the test login as well as the proxyuser.
-CREATE USER testuser
-go
--- Create a procedure that calls our start procedure in msdb.
-CREATE PROCEDURE start_our_job WITH EXECUTE AS 'dbo' AS
-   EXEC jobstarter..start_this_job
-go
--- Give test user right to execute the procedure.
-GRANT EXECUTE ON start_our_job TO testuser
-go
--- Switch to the test user.
-EXECUTE AS LOGIN = 'testuser'
-go
--- Start the job, this succeeds.
-EXEC start_our_job
-go
--- Back to ourselves.
-REVERT
-go
--- Clean up.
-go
-USE msdb
-go
-DROP USER jobstartuser
-go
-USE master
-go
-DROP DATABASE jobstarttest
-DROP DATABASE jobstarter
-DROP LOGIN testuser
-DROP LOGIN databaseowner
-DROP LOGIN jobstartuser
-

You may find this solution a bit too elaborate, and I can certainly agree. A better solution may to be use a mix of impersonation and certificate signing. Put the procedure start_this_job in msdb and use EXECUTE AS to get access to sp_start_job. But instead of making the source database TRUSTWORTHY, you use certificate signing to give permission to run start_this_job. This also relieves you of the requirement that the database must not have an individual owner.

-

As a final note: if you want to see which user in the source database that actually started the job, counter-signing the system procedures is the only choice. The auditing in msdb is performed through SYSTEM_USER so any impersonation breaks that.

-

Yet another Side Effect – WindowsIdentity

-

Before we leave EXECUTE AS, there is one more side effect I have yet to discuss. This is a little more on the advanced side, and something I learnt from SQL Server MVP Adam Machanic.

-

In a CLR module, you can access the WindowsIdentity object. The main - purpose for this is in assemblies that have been marked as EXTERNAL_ACCESS or UNSAFE where you want to access resources outside SQL Server with the Windows - permissions of the actual user. To do this, you need to impersonate that user, - or else the access will be through the service account for SQL Server.

-

As long as there has not been any impersonation through EXECUTE AS, SqlContext.WindowsIdentity.Name will return the domain and the Windows user name, - if the user logged in through Windows authentication. For an SQL login, WindowsIdentity is Null, so access to SqlContext.WindowsIdentity.Name yields a Null exception.

-

But if there is an EXECUTE AS clause somewhere on the call stack, you can no - longer retrieve the user name for the Windows user. In most cases, WindowsIdentity is Null. But, if the database was set as trustworthy, and - the EXECUTE AS is for a user with sysadmin privileges, then WindowsIdentity.Name will return the name of the service account for SQL Server.

-

Other Methods

-

In this section I will cover three other methods to secure SQL Server. -Sometimes I see people ask on the newsgroups and forums How can I grant -access to an application? That is, they don't want the users to be able to -access the tables directly from SSMS or Excel, but only from the application. The regular approach to achieve this is -to use stored procedures, and we have already looked what possibilities they offer. But not all applications use stored procedures. In this section, I will - briefly look at three solutions you can employ regardless whether you use -stored procedures or not.

-

Application Roles

-

Application roles were added in SQL 7. The idea is that you - create a role to which you assign the necessary privileges to run the - application. The users have no permissions at all beyond the database access. The application calls the system procedure - sp_setapprole to activate the role. To do this, the application must pass a password - that can be obfuscated when sent over the wire.

-

Application roles may seem what you are looking for, but the password is a -weak point. If you have a two-tier application, you can never achieve -a secure solution with application roles. The password has to be embedded in the -application, or stored somewhere the user has read access. You can chop it into -pieces and store the pieces in the four corners of the application, but at best -that is security by obscurity. It's a different matter if you have a three-tier -application. Then you can store the password on the middle tier somewhere the -users do not have read access. You should still need to beware that anyone who can get -access to the network wire to SQL Server may be able to eavesdrop and crack the -password.

-

By default, when you activate an application role, you cannot back out of it. -This has an effect on connection pooling; if you try to reuse a connection where -an application role has been active, you will get an error. But you can get a -cookie back from sp_setapprole, which you then can pass to -sp_unsetapprole before you disconnect.(Please see - sp_setapprole in Books Online for the exact syntax.)

-

This also makes it possible for having several application roles with - custom permissions for various tasks, similar to what we have discussed for - certificates and EXECUTE AS. That is, you would set the application role, perform the SQL that needs special permissions, and then unset the role. - (Note that you cannot call sp_setapprole from within a stored procedure; - it must be called from the top-level scope.) But due to the password issue, it - is not a solution that I recommend.

-

Since application roles are database entities, you cannot use them for things - that require server-level permissions, for instance bulk load.

-

When you use application roles, functions that return login names – SYSTEM_USER, suser_sname() etc – still return the login name of the - actual user. However, functions that return the database-level user name – - USER, user_name() – return the name of the application role.

-

"Application Proxies"

-

I have already touched at application proxies in several places, mainly in - the sections on the EXECUTE AS statement and - SET CONTEXT_INFO. Here I like - to give just a few more remarks.

-

For an "application proxy" to be meaningful, the application must have at - least three tiers. The middle tier authenticates the user and then connects to - SQL Server. The same arrangement can be achieved with application roles, but - with one difference: the application proxy can be a Windows login, so there is - no password crossing the wire.

-

An interesting observation on SET CONTEXT_INFO - is that it - could serve as a full alternative to EXECUTE AS to impersonate the real user. All checks and auditing in the application that require knowledge about the real user would use context_info() to get this information. But as I discussed earlier, if there are holes in the application that permits for SQL injection, a malicious user could inject a SET CONTEXT_INFO to change his identity. For this reason, the EXECUTE AS statement - with its NO REVERT and WITH COOKIE - clauses appears as safer.

-

Terminal Server

-

It is possible to set up a Remote Desktop connection so that a specific application is started, when the user -connects. Furthermore, on Windows 2008, it is -possible to set this up so that the user arrives directly to the login screen of -the application, and the application appears as if it executes from his -computer. That is, there is no desktop from the computer running Terminal -Server. Please don't ask me how you do to set this up; I'm an SQL Server MVP, -not a Windows MVP. But I've seen a demo of it.

-

If you have a two-tier application, you can use this to ensure that users can -connect only through the application, and not through Access, Excel, Management -Studio or whatever. You need to configure the network so that the SQL Server -machine is not directly accessible from the users' computers, only from the -computer running Terminal Server. One way to do this is to configure the firewall -on the SQL Server machine to only accept connections from certain IP addresses.

-

Since this solution builds on things outside my realm, I cannot fully asses -how secure it is. For instance, I don't know if there is any possibility for -users to intercept the login process in Terminal Server. Nevertheless, it is an interesting option. Not the least if you have a two-tier application, you don't want to re-architect.

-

Final Words

-

Security is always a challenge. One aspect is that security and convenience rarely goes hand in hand. Better security often means more hassle.

-

But security is also a challenge, because the holes in your security scheme may not always be apparent. To work with security means that you constantly have to think around corners. Can this permission be exploited by a malicious user? Could there be privilege elevation? You cannot only consider the current situation, but you must also try to see into the future. Maybe your current setup is secure because of some assumptions that are true now. But what if those assumptions are not true to tomorrow?

-

In this article I have presented a number of solutions and suggestions, which I believe to be secure. But I cannot rule out that I've made a shortcut too many somewhere. By all means, if you apply any of my solutions in an area where security is top priority, you should make your own evaluation of the solution to assess whether there is a hole somewhere.

-

In this article we have looked at three different solutions to grant permissions through stored procedures: ownership chaining, certificates and EXECUTE AS.

-

Of these, ownership signing only works in a limited scenario, but a very common one, and ownership signing is what you will use 99 % of the time or even more.

-

In the situations where ownership signing is not sufficient, you can always use certificate signing to grant other permissions. With certificates you can have very tight control over what permissions you grant. Not the least is this important if you are a server DBA who needs to grant server-level permission to users in application databases.

-

And then there is EXECUTE AS... As you have realised from this article, I am less than enthusiastic over EXECUTE AS. Everything you can do with EXECUTE AS you can do with certificates. (Save to cover up for an explicit DENY.) But it has to be admitted that EXECUTE AS is simpler. So I think that EXECUTE AS is OK to grant database permissions under these circumstances:

-
    -
  1. The application was designed with EXECUTE AS in mind. That is row-level security and auditing is based on original_login() or context_info().
    2. -
  2. You use proxy users with specific permissions and don't descend to EXECUTE AS OWNER as the miracle cure.
    3. -
-

From this follows that if you are a plain developer and need a solution to grant permissions beyond what is possible with ownership chaining, you cannot start using EXECUTE AS on your own initiative. You first need to discuss with your DBA or the chief designer of the application, so that you don't wreak havoc of something.

-

There are also some situations where EXECUTE AS is meaningful for cross-database access, and we have looked at some examples. The presumption is that the database has an individual owner, so that the effect of making it trustworthy is limited.

-

But when it comes to server-level permissions, you should be extremely conservative with using EXECUTE AS, since this requires the database to be trustworthy and the database owner to be granted AUTHENTICATE SERVER. Any user in that database with sufficient permission will be able to elevate his permission to the sysadmin role. You should have very good reasons not to use certificates here.

-

Acknowledgments and Feedback

-I like to thank SQL -Server MVPs Dan Guzman, Martin Bell, Adam Machanic, Hugo Kornelis, Razvan Socol, Kent -Tegels and Victor Isakov as well as Imran Mohamed and Jerry Horochowianka for submitting valuable -suggestions for this article. -

If you have suggestions for improvements, corrections on - contents, language or -formatting, please mail me at -esquel@sommarskog.se. If you have technical questions that any knowledgeable -person could answer, I encourage you to post a question to the SQL Server Security forum on MSDN/Technet.

- -

Revision History

-

2011-12-31 – Added text about a new feature in SQL Server 2012, that makes it easier to copy a certificate from one database to another, including the new section CREATE CERTIFICATE FROM BINARY in SQL 2012.

-

2011-07-13 – A major overhaul of the article to reflect that five years had passed since the original publication. I have also added some quite important new material. Changes in summary:

- -

2011-01-11 – Corrected the expression to decode - context_info(). The old expression would - result in a number trailing NUL characters in the character data. Thanks to -Imran Mohamed for pointing out the error.

-

2006-03-28 – Rewrote the section on asymmetric keys on suggestions - from Razvan Socol.

-

2006-02-19 – Original version.

-

Back to my home page.

- - - - \ No newline at end of file diff --git a/Articles/How to share data between stored procedures.htm b/Articles/How to share data between stored procedures.htm deleted file mode 100644 index 02c92774..00000000 --- a/Articles/How to share data between stored procedures.htm +++ /dev/null @@ -1,1152 +0,0 @@ - - - - -How to share data between stored procedures - - - - - -

How to Share Data between Stored Procedures

-

An SQL text by Erland - Sommarskog, SQL Server MVP. Most recent update 2013-11-02.

-

Introduction

-

This article tackles two related questions:

- -

In this text I will discuss a number of possible solutions and point out their - advantages and drawbacks. Some methods apply only when you want to - access the output from a stored procedure, whereas other methods are good for the input scenario, or both input and output. In the case - you want to access a result set, most methods require you to rewrite the - stored procedure you are calling (the callee) in one way or another, but some solutions do - not.

-

Here is a summary of the methods that I will cover. Required version refers to the minimum version of SQL Server where the solution is available. When the column is empty, this means all versions from SQL 2000 and up.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
MethodIn/OutRewrite callee?Required versionComment
- OUTPUT Parameters -OutputYes Not generally applicable, but sometimes overlooked.
Table-valued FunctionsOutputYes Often the best choice for output-only, but there are several restrictions.
- Inline FunctionsUse this to reuse a single SELECT.
- Multi-statement FunctionsWhen you need to encapsulate more complex - logic.
Using a TableIn/OutYes The most general solution. My favoured choice for input/output scenarios.
Sharing a Temp TableMainly for a single pair of caller/callee.
- Process-keyed TableBest choice for many callers to the same callee.
- Global Temp TablesA variation of process-keyed.
Table-valued ParametersInputYesSQL 2008Mainly useful when passing data from a client.
- INSERT-EXEC -OutputNo Deceivingly appealing, but should be used sparingly.
- Using the CLR -OutputNoSQL 2005Complex, but useful as a last resort when INSERT-EXEC does not work.
- OPENQUERY -OutputNo Tricky with many pitfalls. Discouraged.
- Using XML -In/OutYesSQL 2005A bit of a kludge, but not without advantages.
Using Cursor VariablesOutputYes Not recommendable.
-

At the end of the article, I briefly discuss the particular situation when -your stored procedures are on different servers, which is a quite challenging situation.

-

A related question is how to pass table data - from a client, but this is a topic which is outside the scope for this text. Of the methods - that I discuss in this article, only table-valued parameters and XML are useful for this case. For - a more general discussion on passing structured data from a client to SQL - Server, see my article Arrays and - Lists in SQL Server.

-

Examples in the article featuring tables such as authors, titles, sales etc run in the old sample database pubs. You can download the script for pubs from Microsoft's web site. (Some examples use purely fictive tables, and do not run in pubs.)

-

OUTPUT Parameters

-

This method can only be used when the result set is one single row. - Nevertheless, this is a method that is sometimes overlooked. Say you have - this simple stored procedure:

-
CREATE PROCEDURE insert_customer @name    nvarchar(50),
-                                 @address nvarchar(50),
-                                 @city    nvarchar(50) AS
-DECLARE @cust_id int
-BEGIN TRANSACTION
-SELECT @cust_id = coalesce(MAX(cust_id), 0) + 1 FROM customers (UPDLOCK)
-INSERT customers (cust_id, name, address, city)
-   VALUES (@cust_id, @name, @address, @city)
-COMMIT TRANSACTION
-SELECT @cust_id
-That is, the procedure inserts a row into a table, and returns the id for the -row. -

-Rewrite this procedure as:

-
CREATE PROCEDURE insert_customer @name    nvarchar(50),
-                                 @address nvarchar(50),
-                                 @city    nvarchar(50),
-                                 @cust_id int OUTPUT AS
-BEGIN TRANSACTION
-SELECT @cust_id = coalesce(MAX(cust_id), 0) + 1 FROM customers (UPDLOCK)
-INSERT customers (cust_id, name, address, city)
-   VALUES (@cust_id, @name, @address, @city)
-COMMIT TRANSACTION
-

You can now easily call insert_customer from another stored procedure. - Just recall that in T‑SQL you need to specify the OUTPUT keyword also in the - call:

-
EXEC insert_customer @name, @address, @city, @cust_id OUTPUT
-

Note: this example has a single output parameter, but a stored procedure can - have many output parameters.

-

Table-valued Functions

-

When all you want to do is to reuse the result set from a stored procedure, the first thing to investigate is whether it is possible to rewrite the stored procedure as a table-valued function. This is far from always possible, because SQL Server is very restrictive with what you can put into a function. But when it is possible, this is often the best choice.

-

There are two types of table functions in SQL Server: inline and multi-statement functions.

-

Inline Functions

-

Here is a example of an inline function adapted from Books Online for SQL 2000:

-
CREATE FUNCTION SalesByStore (@storeid varchar(30))
-RETURNS TABLE AS
-RETURN (SELECT t.title, s.qty
-        FROM   sales s
-        JOIN   titles t ON t.title_id = s.title_id
-        WHERE  s.stor_id = @storeid)
-To use it, you simply say: -
SELECT * FROM SalesByStore('6380')
-You can filter the data with WHERE or use it in a bigger query that includes other tables. That is, you use the function just like was a table or a view. You could say that an inline function is a parameterised view, because the query optimizer expands the function - as if it was a macro, and generates the plan as if you had provided the expanded - query. Thus, there is no performance cost for packaging a SELECT statement into - an inline function. For this reason, when you want to reuse a stored - procedure that consists of a single SELECT statement, rewriting it into an - inline UDF is without doubt the best choice. (Or instead of rewriting it, move - the SELECT into a UDF, and rewrite the existing procedure as a wrapper on the - function, so that the client is unaffected.) -

There are a couple of system functions you cannot use in a UDF, because SQL Server thinks it matters that they are side-effecting. The most commonly used ones are newid(), and rand(). On SQL 2000 this restriction goes further and disallows all system functions that are nondeterministic, that is, functions that do not return the same value for the same -input parameters on each call. A typical example is getdate().

-

Multi-statement Functions

-

-A multi-statement function has a body that can have as many statements as you -like. You need to declare a return table, and you insert -the data to return into that table. -Here is the function above as a multi-statement function:

-
CREATE FUNCTION SalesByStore (@storeid varchar(30))
-   RETURNS @t TABLE (title varchar(80) NOT NULL PRIMARY KEY,
-                     qty   smallint    NOT NULL)  AS
-BEGIN
-   INSERT @t (title, qty)
-      SELECT t.title, s.qty
-      FROM   sales s
-      JOIN   titles t ON t.title_id = s.title_id
-      WHERE  s.stor_id = @storeid
-   RETURN
-END
-

-You use multi-statement functions in the same way as you use inline functions, but in difference to -inline functions, they are not expanded in place, but instead it's like you -would call a stored procedure in the middle of the query and return the data in -a table variable. This permits you to move the code of a more complex stored procedure into -a function.

-

As you can see in the example, you can define a primary key for your return table. I like to point out that this definitely best practice for two reasons:

-
    -
  1. It states your assumptions of the data. If your assumptions are incorrect, you will be told up front. (Instead of spending time to understand why your application presents incorrect data.)
    2. -
  2. This is information that is valuable to the optimizer when you use the function in a larger query.
    3. -
-

It goes without saying, that this is only meaningful if you define a primary key on the columns you produce in the body of the UDF. Adding an IDENTITY column to the return table only to get a primary key is pointless.

-

- Compared to inline functions, multi-statement functions - incur some overhead due to the return table. More important, though, is that if you use the function in - a query where you join with other tables, the optimizer will have no idea of what the function returns, and will -make standard assumptions. This is far from always an issue, but the more rows the function returns, the higher the risk that the optimizer will make incorrect estimates and produce an inefficient query plan. One way to avoid this is to insert the results from the function into a temp table. Since a temp table has statistics this helps the optimizer to make a better plan.

-

It follows from this, that there is not much reason to consider which sort of - function to use. If you can express your problem in a single query, use an -inline function. Only use a multi-statement function when an inline function is not possible.

-

User-defined functions are quite restricted in what they can do, because a UDF is not permitted to change the database state. The most important restrictions are:

- -

Please see the Remarks section in the topic for CREATE FUNCTION in Books Online - for a complete list of restrictions.

-

Using a Table

-

What could be better for passing data in a database than a table? When using a table there are no restrictions, but you have a solution that works in all situations. We will look at two ways to do this, as well as a third way which is a variation of the second. It should be admitted, though, that this is a little more heavy-handed than some of the other solutions in this article. Using tables can also lead to performance issues due to recompilation.

-

Sharing a Temp Table

-

Introduction

-

The method itself is as simple as this:

-
CREATE PROCEDURE called_procedure @par1 int,
-                                  @par2 bit,
-                                  ... AS
-   ...
-   INSERT/UPDATE/DELETE #tmp
-go
-CREATE PROCEDURE caller AS
-   DECLARE ...
-   CREATE TABLE #mytemp (col1 int     NOT NULL,
-                         col2 char(5) NULL,
-                        ...)
-   ...
-   EXEC called_procedure @par1, @par2 ...
-   SELECT * FROM #mytemp
-go
-

In this example, caller creates the temp table, and called_procedure - fills it in, that is, the table is output-only. A different scenario is that caller fills the table - with input data whereupon called_procedure performs some general computation, and the caller uses the result from that computation for some purpose. That is, the table is used for both input and output. Yet a scenario is that the caller prepares the temp table with data, and the callee first performs checks to verify that a number of business rules are not violated, and then goes on to update one or more tables. This would be an input-only scenario.

-

Changing Existing Code

-

Say that you have this procedure:

-
CREATE PROCEDURE SalesByStore @storeid varchar(30) AS
-   SELECT t.title, s.qty
-   FROM   sales s
-   JOIN   titles t ON t.title_id = s.title_id
-   WHERE  s.stor_id = @storeid
-

You want to reuse this result set in a second procedure that returns only titles that have sold above a certain quantity. How would you achieve this by sharing a temp table without affect existing clients? The solution is to move the meat of the procedure into a sub-procedure, and make the original procedure a wrapper on the original like this:

-
CREATE PROCEDURE SalesByStore_core @storeid varchar(30) AS
-   INSERT #SalesByStore (title, qty)
-      SELECT t.title, s.qty
-      FROM   sales s
-      JOIN   titles t ON t.title_id = s.title_id
-      WHERE  s.stor_id = @storeid
-go
-CREATE PROCEDURE SalesByStore @storeid varchar(30) AS
-   CREATE TABLE #SalesByStore(title varchar(80) NOT NULL PRIMARY KEY,
-                              qty   smallint    NOT NULL)
-   EXEC SalesByStore_core @storeid
-   SELECT * FROM #SalesByStore
-go
-CREATE PROCEDURE BigSalesByStore @storeid varchar(30),
-                                 @qty     smallint AS
-   CREATE TABLE #SalesByStore(title varchar(80) NOT NULL PRIMARY KEY,
-                              qty   smallint    NOT NULL)
-   EXEC SalesByStore_core @storeid
-   SELECT * FROM #SalesByStore WHERE qty >= @qty
-go
-EXEC SalesByStore '7131'
-EXEC BigSalesByStore '7131', 25
-go
-DROP PROCEDURE SalesByStore, BigSalesByStore, SalesByStore_core
-

Note: This script is a complete repro script that creates some objects, tests them, and then drops them, to permit simple resting of variations. We will look at more versions of these procedures later in this text.

-

Just like in the example with the multi-statement function, I have defined a primary key for the temp table, and exactly for the same reasons. Speaking of best practices, some readers may wonder about the use of SELECT * here. I think using SELECT * from a temp table created in the same procedure is OK, particularly if the purpose is to return all columns in the temp table. (In difference to using SELECT * from a table created elsewhere, and which may be altered without your knowledge.)

-

While this solution is straightforward, you may feel uneasy by the fact that the CREATE TABLE statement for the temp table appears in two places, and there is a third procedure that depends on the definition. Here is a solution which is a little more convoluted that to some extent alleviates the situation:

-
CREATE PROCEDURE SalesByStore_core @storeid       varchar(30),
-                                   @wantresultset bit = 0 AS
-   IF object_id('tempdb..#SalesByStore') IS  NULL 
-   BEGIN
-      CREATE TABLE #SalesByStore(title varchar(80) NOT NULL PRIMARY KEY,
-                                 qty   smallint    NOT NULL)
-   END
-
-   INSERT #SalesByStore (title, qty)
-      SELECT t.title, s.qty
-      FROM   sales s
-      JOIN   titles t ON t.title_id = s.title_id
-      WHERE  s.stor_id = @storeid
-      
-   IF @wantresultset = 1
-      SELECT * FROM #SalesByStore
-go
-CREATE PROCEDURE SalesByStore @storeid varchar(30) AS
-   EXEC SalesByStore_core @storeid, 1
-go
-

I've moved the CREATE TABLE statement for the wrapper into the core procedure, which only creates the temp table only if it does not already exist. The wrapper now consists of a single EXEC statement and passes the parameter @wantresultset as 1 to instruct the core procedure to produce the result set. Since this parameter has a default of 0, BigSalesByStore can be left unaffected.

-

A Note on the Virtues of Code Reuse

-

Before we move on, I like to point out that the given example as such is not very good practice. Not because the concept of sharing temp tables as such is bad, but as with all solutions, you need to use them in the right place. As you realise, defining a temp table and creating one extra stored procedure is too heavy artillery for this simple problem. But an example where sharing temp tables would be a good solution would have to consist of many more lines of code, which would have obscured the forest with a number of trees. Thus, I've chosen a very simple example to highlight the technique as such.

-

Keep in mind that compared to languages such as C# and Java, Transact-SQL is poorly equipped for code reuse, why solutions in T‑SQL to reuse code are clumsier. For this reason, the bar for reuse is somewhat higher in T‑SQL. It's still a virtue, but not as big virtue as in modern object-oriented languages. In this simple problem, the best would of course be to add @qty as a parameter to SalesByStore. And if that would not be feasible for some reason, it would still be better to create BigSalesByStore by means of copy-paste than sharing a temp table.

-

Beside the poverty of T‑SQL as a language, there is a second reason why code reuse is something that you should be a little careful with. Say that there is a requirement to show the sales for all stores in a certain state. In a pure C# or Java environment, it would be normal to write a loop that calls SalesByStore for every store. But in a database with several hundred gigabytes of data, the performance penalty for such a solution can be severe.

-

A Maintenance Problem

-

If the callee is called from many places, and you want to change which -columns it reads/writes, you need to revisit all calling stored procedures - to edit the temp-table definition. For this reason, sharing temp tables - is mainly useful when you have a single pair of caller and callee. - Then again, if the temp is narrow, maybe only a single column of customer IDs -to process, the table is likely to be very stable.

-

There are some alternatives to overcome the maintenance problem. One is to use a process-keyed table, which we will look into in the next section. I have also received some interesting ideas from readers of this article.

-

One solution comes from Richard St-Aubin. The callers create the temp table with a single dummy column, and then call a stored procedure that uses ALTER TABLE to add the real columns. It would look something like this:

-
CREATE PROCEDURE called_procedure @par1 int,
-                                  @par2 bit,
-                                  ... AS
-   ...
-   INSERT/UPDATE/DELETE #mytemp
-go
-CREATE PROCEDURE define_temp_table AS
-   ALTER TABLE #mytemp ADD col1 int     NOT NULL,
-                           col2 char(5) NULL,
-                           ...
-go
-CREATE PROCEDURE caller AS
-   DECLARE ...
-   CREATE TABLE #mytemp (dummycol bit)
-   EXEC define_temp_table
-   ...
-   EXEC called_procedure @par1, @par2 ...
-   SELECT * FROM #mytemp
-go
-

You must create the temp table in caller, since if you were to put the CREATE TABLE statement in define_temp_table, the table would be dropped when that procedure exits. This method can definitely be - worth exploring, but I like to add a word of caution. Adding columns to a table at run-time can lead to unexpected errors if the procedure is recompiled. If you call the procedure that adds the columns directly after the CREATE TABLE statement, you should be -fairly safe. But this depends on the fine print in SQL Server, so it could break with a new release. A second issue is that this method prevents SQL Server from caching the temp-table definition. This could have a significant impact if the procedures are called with a high frequency.

-

Another solution, which requires SQL 2008, comes from Wayne Bloss. He creates a table type that holds the definition of the temp table. You can only use table types for declaring table variable and table parameters. But Wayne has a cure for this:

-
DECLARE @dummy my_table_type
-SELECT * INTO #mytemp FROM @dummy
-

From this point you work with #mytemp; the sole purpose of @dummy is to be able to create #mytemp from a known and shared definition. (If you are unacquainted with table types, we will take a closer look on them in the section on table-valued parameters.) A limitation with this method is that you can only centralise column definitions this way, but not constraints as they are not copied with SELECT INTO. You may think that constraints are odd things you rarely put in a temp table, but I have found that it is often fruitful to add constraints to my temp tables as assertions for my assumptions about the data. This does not the least apply for temp tables that are shared between stored procedures. Also, defining primary keys for your temp tables can avoid performance issues when you start to join them.

-

Let me end this section by pointing out that sharing temp tables opens for an interesting possibility for flexibility. The callee - only cares about the columns it reads or writes. This permits a caller - to add extra columns for its own usage when it creates the temp table. Thus, two callers to the same callee could have different definitions of the -temp table, as long as the columns accessed by the callee are defined consistently.

-

Note: A more advanced way to tackle the maintenance problem is to use a - pre-processor and put the definition of the temp table in an include-file. If you have a C compiler around, you can use the C pre-processor. My AbaPerls includes a pre-processor, Preppis, which we use in the system I spend most of my time with.

-

The Impact of Recompilation

-

One distinct drawback with this method is that it causes a lot of recompilation in the callee. Each time the caller is invoked, a new instance -of the temp table is created, and for this reason SQL Server must recompile all statements in the callee that refer to the temp table. (Recall what I said about flexibility in the previous paragraph. The definition could really be different.) If the execution time for the callee is expected to be subsecond and there are several complex statements in the procedure, the recompilation may add an overhead of more than 100 %. On the other hand, if the typical execution time of the callee is one minute, the cost of recompilation is likely to be negligible.

-

One way to reduce the amount of recompilation is to copy any input data in the shared table to a local table first thing, and then write back the result at the end. This restricts the recompilation to these two statements, but it goes without saying that this adds an overhead in itself, and it's mainly an option when you expect the table to hold a small amount of data.

-

I should hasten to add that recompilation can happen for several reasons. It is very common for temp tables to cause recompilation because of changed statistics, a topic I will return to when I discuss process-keyed tables.

-

Note: if you are still on SQL 2000, you should be aware of that in this version of SQL Server, recompilation is always on procedure level and therefore more expensive. Statement-level recompilation was introduced in SQL 2005.

-

A Note on SQL Server Data Tools

- -

Simultaneously with SQL Server 2012, Microsoft released SQL Server Data Tools, SSDT. This is a very versatile environments that gives you many benefits. One benefit is that if you write a stored procedure like:

-
CREATE PROCEDURE example_sp AS
-   CREATE TABLE #temp(a int NOT NULL)
-   SELECT a FROM #temmp
-

SSDT will tell you up front of the misspelling about the temp table name, before you try to run the batch to create the procedure. This is certainly a very helpful feature, because a typo can be trapped early. However, SSDT has no notion about sharing temp tables, so SSDT will also give you a warning for a procedure like SalesByStore_core, or more precisely three: one per column. They are only warnings, so you can proceed, but it takes a handful of such procedures to clutter up the Error List window so there is a risk that you miss other and more important issues.

-

There is a way to suppress the warning: right-click the file in Solution Explorer and select Properties. There is a property Suppress T-Sql Warning and here you can enter the code for the error. But this means that you lose the checking of all table names in the procedure; there is no means to only suppress the warning only for the shared temp table.

-

All and all, if you are using SSDT, you will find an extra resistence barrier against sharing temp tables.

-

Process-Keyed Tables

-

This method evades the - maintenance problem by using a permanent table instead. There is still a recompilation problem, though, but of a different - nature.

-

Outline

-

A process-keyed table is simply a permanent table that serves as a temp - table. To permit processes to use the table simultaneously, the table - has an extra column to identify the process. The simplest way to do this is the global - variable @@spid (@@spid is the process id in SQL Server). In fact, this is so - common, that these tables are often referred to as spid-keyed tables. - Here is an outline; I will give you a more complete example later.

-
CREATE TABLE process_keyed (spid  int     NOT NULL,
-                            col1  int     NOT NULL,
-                            col2  char(5) NULL,
-                            ...)
-go
-CREATE CLUSTERED INDEX processkey_ix ON process_keyed (spid)
--- Add other columns as needed.
-go
-...
-DELETE process_keyed WHERE spid = @@spid
-INSERT process_keyed (spi, col1, col2, ....)
-   VALUES (@@spid, @val1, @val2, ...)
-...
-SELECT col1, col2, ...
-FROM   process_keyed
-WHERE  spid = @@spid
-...
-DELETE process_keyed WHERE spid = @@spid
-

A few things to note here:

-
    -
  1. The table should have a clustered index on the process key (spid - in this example), as all queries against the table will include the - condition WHERE spid = @@spid.
    2. -
  2. You should delete any existing data for @@spid before you insert any - data into the table, as a safety precaution.
    3. -
  3. When you are finished using the data you should delete it, so that it - does not occupy any extra space.
    4. -
-

Choosing the Process-key

-

While it's common to use @@spid as the process key there are two problems with this:

-
    -
  1. If sloppy programmers neglect to clear the spid before and after use, old data may be passed to the callee, causing incorrect results that are difficult to understand how they arose.
    2. -
  2. If a client needs to pass a process-key around, there is no guarantee that it will have the same spid every time, since modern clients typically connect and disconnect for each call they make.
    3. -
-

One alternative for the process-key is to use a GUID (data type -uniqueidentifier). If you create the process key in SQL Server, you can use the function newid(). (You can rely on newid() to return a unique value, which is why it addresses the first point.) You may have heard that you should not have guids in your clustered index, but that applies when the guid is the primary key alone, since this can cause fragmentation and a lot of page splits. In a process-keyed table, you will typically have many rows for the same guid, so it is a different situation.

-

SQL 2012 offers a new alternative: get the process-key from a sequence, which is a new type of object in SQL 2012. A sequence is akin to an IDENTITY column, but it is an object of its own.

-

A Longer Example

-

Let's say that there are several places in the application where you need to compute the total number of sold books for one or more stores. You put this computation in a procedure ComputeTotalStoreQty, which operates on the table stores_aid. In this example, the procedure is nothing more than a simple UPDATE statement that computes the total number of books sold per store. A real-life problem could have a complex computation that runs over several hundred lines of code. There is also an example procedure TotalStoreQty which returns the returns the total sales for a certain state. It fills stores_aid with all stores in that state, calls ComputeTotalStoreQty and then returns the result to the client. Note that TotalStoreQty is still careful to clear its entry in stores_aid both before and after the call.

-
CREATE TABLE stores_aid 
-      (process_key uniqueidentifier NOT NULL,
-       storeid     char(4)          NOT NULL,
-       totalqty    smallint         NULL,
-       CONSTRAINT pk_stores_aid PRIMARY KEY (process_key, storeid)
-)       
-go
-CREATE PROCEDURE ComputeTotalStoreQty @process_key uniqueidentifier AS
-   UPDATE stores_aid
-   SET    totalqty = s.totalqty
-   FROM   stores_aid sa             
-   JOIN   (SELECT stor_id, SUM(qty) AS totalqty
-           FROM   sales
-           GROUP  BY stor_id) AS s ON s.stor_id = sa.storeid
-   WHERE  sa.process_key = @process_key
-go
-CREATE PROCEDURE TotalStoreQty @state char(2) AS
-   DECLARE @process_key uniqueidentifier
-   SELECT @process_key = newid()
-   
-   DELETE stores_aid WHERE process_key = @process_key
-   INSERT stores_aid(process_key, storeid)
-      SELECT @process_key, stor_id
-      FROM   stores
-      WHERE  state = @state
-      
-   EXEC ComputeTotalStoreQty @process_key
-   
-   SELECT storeid, totalqty 
-   FROM   stores_aid
-   WHERE  process_key = @process_key
-   
-   DELETE stores_aid WHERE process_key = @process_key
-go
-EXEC TotalStoreQty 'CA'
-go
-DROP PROCEDURE TotalStoreQty, ComputeTotalStoreQty
-DROP TABLE stores_aid
-

Please note that I have defined a proper key for stores_aid adhering to best practices.

-

Name Convention and Clean-up

-

You may wonder what that _aid in the table name comes from. In the environment where I do my daily chores, we have quite a few process-keyed tables, and we have adapted the convention that all these tables end in -aid. This way, when you read some code, you know directly that this is not a "real" table with persistent data. (Nevertheless some of our aid tables are very important in our system as they are used by core functions.)

-

There is a second point with this name convention. It cannot be denied - that a drawback with process-keyed tables is that sloppy programmers could forget to -delete data when they are done. Not only this wastes space, it can also result in incorrect row-count estimates leading to poor query plans. For this reason it is a good idea to clean up these tables on a regular basis. For instance, in our night-job we have a procedure that runs the query below and then executes the generated statements:

-
SELECT 'TRUNCATE TABLE ' + quotename(name)
-FROM   sysobjects
-WHERE  type = 'U'
-  AND  name LIKE '%aid'
-
-

Issues with Recompilation

-

As we saw, when sharing temp tables, this causes recompilations in the callee, because the temp table is a new table every time. While this issue does not exist with process-keyed tables, you can still get a fair share of recompilation because of auto-statistics, a feature which is enabled in SQL Server by default. For a permanent table, auto-statistics kicks in when the first 500 rows have been added, and then every time - 20 % of the rows have changed. (For full details on recompilation, see this - white paper by Eric Hanson and Yavor Angelov.) Since a process-keyed table is typically - empty when it is not in use, auto-statistics sets in often. Sometimes this - can be a good thing, as the statistics may help the optimizer to find a -better plan. But as I noted previously, recompilation may also cause an unacceptable performance overhead.

-

As when sharing temp tables, one way to circumvent the recompilation is to copy data to a local table on input and copy back on output. But for process-keyed tables there are two more options:

-
    -
  1. Disable auto-statistics for the table entirely with sp_autostats.
    2. -
  2. Use the query hint OPTION (KEEPFIXED PLAN) for queries which are costly to recompile, and where the changed statistics are unlikely to affect the outcome of the compilation.
    3. -
-

The Cost of Logging

-

Compared to sharing temp tables, one disadvantage with process-keyed tables is that you tend to put them - in the same database as your other tables. This has two ramifications:

-
    -
  1. The tables are subject to complete logging; temp tables are only logged for rollbacks, not for recovery on start-up, since tempdb is always recreated when SQL Server starts.
    2. -
  2. If the database has full recovery, the process-keyed table will consume extra space in your transaction-log backups.
    3. -
-

The second point can be addressed by putting -all your process-keyed tables in a separate database with simple recovery. Both points can be addressed by using a global temp table, which I will discuss in the next session.

-

Using Memory-optimised Tables in SQL 2014

-

If you are on SQL 2014 – which of this writing is only available as a CTP and not yet released – there is an excellent solution to this problem. Use a table created with these options:

-
WITH (MEMORY_OPTIMIZED = ON, DURABILITY = SCHEMA_ONLY)
-

This is part of an entirely new feature in SQL 2014, known under the code name Hekaton. Hekaton tables are entirely in memory, and for really blazing performance you access them from stored procedures that have been compiled to C code. You can also access them from traditional T-SQL and still see significant performance improvements compared to traditional tables. Hekaton tables can hold persistent data, just like regular tables, and in such case there is still an overhead of writing to the transaction log. However, when you create a Hekaton table, there is also the option to say you don't want data to be durable. Such tables need very little logging, and this is perfect for process-keyed tables, where you don't want any data to survive a server crash.

-

A couple of notes:

-
    -
  1. The database must be configured to permit Hekaton tables. Specifially, you need to add a filegroup for memory-optimized data. (This is a directory, akin to what you have for FILESTREAM data.)
    2. -
  2. The surface area for Hekaton is limited, and currently these data types are not supported: MAX data types, xml, text, ntext, image, sql_variant, datetimeoffset and CLR data types. Furthermore, the maximum data size for a row must not exceed 8060 bytes.
    3. -
  3. You must define a primary key for the table, which must be either nonclustered or a hash (a new index type, specific to Hekaton). This can be a bit of a bummer – some of my process-keyed tables are a bit denormalised as they contain different type of data.
    4. -
  4. While I mentioned natively compiled stored procedured, these have a very limited feature set, and it is not likely that you will have much use for them with your process-keyed tables. For one thing, natively compiled stored procedures cannot access disk-based tables, which you probably want to join your process-keyed table with.
    5. -
  5. At this writing, it is not clear whether Hekaton will be available in all editions of SQL Server.
    6. -
-

Conclusion

-

While process-keyed tables are not without issues when it comes to performance, and they are certainly a bit heavy-handed for the simpler cases, I still see this is the best overall solution that I present in this article. It does not come with a ton of restrictions like table-valued functions and it is robust, meaning that code will not break because of simple changes in difference to some of the other methods we will look at later.

-

But that does not mean that using a process-keyed table is always the way to go. For instance, if you only need output-only, and your procedure can be written as a table-valued function, that should be your choice.

-

Global Temp Tables

-

If you create a table with two leading hash marks (e.g. ##temp), this is a global temp -table. In difference to a regular temp table, a global temp table is visible to -all processes. However, when the process that created the table goes away, so -does the table (with some delay if another process is running a query against -the table in that precise moment). That makes global temp tables difficult to -use on any real global basis, but only when you have control over all -involved processes like when spawning a second process through xp_cmdshell.

-

Nevertheless, there is a special case that SQL Server MVP Itzik Ben-Gan made me aware of: if you create a global temp table in a start-up procedure, the global temp - table will be around as long as the server is up, unless someone explicitly - drops it. This makes it possible to use a global temp table as a process-keyed -table. This way you can have a fixed and known schema for your process-keyed table but still get the reduced logging of tempdb.

-

Here is a quick sample of how you create a global temp table when SQL Server starts:

-
USE master
-go
-CREATE PROCEDURE create_global_temp AS
-   CREATE TABLE ##global(process_key uniqueidentifier NOT NULL,
-                         -- other columns here
-   )
-go
-EXEC sp_procoption create_global_temp, 'startup', 'true'
-

It cannot be denied that there are some problems with this solution. What - if you need to change the definition of the global temp table in way that cannot - be handled with ALTER TABLE? Having to restart the server to get the new definition - in place may not be acceptable. One way to address is to refer to your - process-keyed table through a synonym (a feature added in SQL 2005). In - development, you let the synonym point to a local table, and only when you are -ready for production you change the synonym to refer to the global temp table. If you need to change the table definition while system is live, you create the new version of the table in the local database and change the synonym and run it that way until the server is restarted.

-

Table-valued Parameters

-

Table-valued parameters (TVP) were introduced in SQL 2008. They permit you to pass a table variable as a parameter to a stored procedure. When you - create your procedure, you don't put the table definition directly in the - parameter list, instead you first have to create a table type - and use that in the procedure definition. At first glance, it may seem like an extra step - of work, but when you think of it, it makes very much sense: you will -need to declare the table in at least two places, in the caller and in the callee. So why not have the definition in one place?

-

Here is a quick example of a table-valued parameter in play:

-
CREATE TYPE my_table_type AS TABLE(a int NOT NULL,
-                                   b int NOT NULL)
-go
-CREATE PROCEDURE the_callee @indata my_table_type READONLY AS
-   INSERT targettable (col1, col2)
-      SELECT a, b FROM @indata
-go
-CREATE PROCEDURE the_caller AS
-   DECLARE @data my_table_type
-   INSERT @data (a, b)
-       VALUES (5, 7)
-   EXEC the_callee @data
-go
-

One thing to note is that a table-valued parameter always has an implicit default value of an empty table. So saying EXEC the_callee in this example would not be an error.

-

Table-valued parameters certainly seem like the definite solution, don't they? Unfortunately, TVPs have a very limited usage for the problems I'm discussing in this article. If you look closely at the procedure definition, you find the keyword READONLY. And that is not an optional keyword, but it is compulsory for TVPs. So if you want to use TVPs to pass data between stored procedures, they are usable solely for input-only scenarios. I don't know about you, but in almost all situations where I share a temp table or use - a process-keyed table it's for input-output or -output-only.

-

When I first heard that SQL 2008 was to have TVPs, I was really excited. And when I learnt that they were readonly, I was equally disappointed. During the beta of SQL 2008 I wrote an article, Why read-only table parameters is not enough, where I tried to whip up - support for a Connect item in order to persuade the dev team to permit read-write TVPs when they are passed between stored procedures. The Connect item is still active, but with the release of SQL Server 2012 around the corner, the limitation is still there. Let's really hope that in the next version of SQL Server, we can use table parameters to pass data in all directions!

-

Note: While outside the scope for this article, table-valued parameters is still a welcome addition to SQL Server, since it makes it a lot easier to pass a set of data from client to server, and this context the READONLY restriction is not a big deal. I give an introduction how to use TVPs from ADO .Net in my article Arrays and Lists in SQL Server 2008.

-

INSERT-EXEC

-

Overview

-

INSERT-EXEC is a method that has been in the product for a long time. It's a method that is seemingly very appealing, because it's very simple to use and understand. Also, it permits you use the result of a stored procedure without any changes to it. Above we had the example with the procedure SalesByStore. Here is a how we can implement BigSalesByStore with INSERT-EXEC:

-
CREATE PROCEDURE SalesByStore @storeid varchar(30) AS
-   SELECT t.title, s.qty
-   FROM   sales s
-   JOIN   titles t ON t.title_id = s.title_id
-   WHERE  s.stor_id = @storeid
-go
-CREATE PROCEDURE BigSalesByStore @storeid varchar(30),
-                                 @qty     smallint AS
-   
-   CREATE TABLE #SalesByStore(title varchar(80) NOT NULL PRIMARY KEY,
-                              qty   smallint    NOT NULL)
-   
-   INSERT #SalesByStore (title, qty)
-      EXEC SalesByStore @storeid
-
-   SELECT * FROM #SalesByStore WHERE qty >= @qty
-go
-EXEC SalesByStore '7131'
-EXEC BigSalesByStore '7131', 25
-go
-DROP PROCEDURE SalesByStore, BigSalesByStore
-

In this example, I receive the data in a temp table, but it could also be a permanent table or a table variable. (Except on SQL 2000, where you cannot use a table variable.)

-

It cannot be denied that this solution is simpler than the solution with sharing a temp table. So why then did I first present a more complex solution? Because when we peel off the surface, we find that this method has a couple of issues that are quite problematic.

-

It Can't Nest

-

If you for some reason would try:

-
CREATE TABLE #BigSalesByStore(titleid varchar(80) NOT NULL PRIMARY KEY,
-                              qty     smallint    NOT NULL)
-INSERT #BigSalesByStore (titleid, qty)
-   EXEC BigSalesByStore '7131', 25
-

SQL Server will tell you:

-
Msg 8164, Level 16, State 1, Procedure BigSalesByStore, Line 8
-An INSERT EXEC statement cannot be nested.
-

This is a restriction in SQL Server and there is not much you can do about it. Except than to save the use of INSERT-EXEC until when you really need it. That is, when rewriting the callee is out of the question, for instance because it is a system stored procedure.

-

There is a Serious Maintenance Problem

-

Six months later there is a user requirement for the application function that uses the result set from SalesByStore that the column title_id should be displayed. A developer merrily adds the column to the result set. Unfortunately, any attempt to use the function calling BigSalesByStore now ends in tears:

-
Msg 213, Level 16, State 7, Procedure SalesByStore, Line 2
-Column name or number of supplied values does not match table definition.
-

What it says. The result set from the called procedure must match the column list in the INSERT statement exactly. The procedure may produce multiple result sets, and that's alright as long as all of them match the INSERT statement.

-

From my perspective, having spent a lot of my professional life with systems development, this is completely unacceptable. Yes, there are many ways to break code in SQL Server. For instance, a developer could add a new mandatory parameter to SalesByStore and that would also break BigSalesByStore. But most developers are aware the risks with such a change to an API and therefore adds a default value for the new parameter. Likewise, most developers understand that removing a column from a result set could break client code that expects that column and they would not do this without checking all code that uses the procedure. But adding a column to a result set seems so innocent. And what is really bad: there is no way to find out that there is a dependency – save searching through all the database code for calls.

-

Provided that you may alter the procedure you are calling, there are two ways to alleviate the problem. One is simply to add a comment in the code of the callee, so that the next developer that comes around is made aware of the dependency and hopefully changes your procedure as well.

-

Another way is to use table types (if you are on SQL 2008 or later). - Here is an example:

-
CREATE TYPE SalesByStore_tbl AS TABLE 
-     (titleid varchar(80) NOT NULL PRIMARY KEY,
-      qty     smallint    NOT NULL)
-go
-CREATE PROCEDURE SalesByStore @storeid varchar(30) AS
-   DECLARE @ret SalesByStore_tbl
-   INSERT @ret (titleid, qty)
-      SELECT t.title, s.qty
-      FROM   sales s
-      JOIN   titles t ON t.title_id = s.title_id
-      WHERE  s.stor_id = @storeid
-   SELECT * FROM @ret
-go
-CREATE PROCEDURE BigSalesByStore @storeid varchar(30),
-                                 @qty     smallint AS
-   DECLARE @data SalesByStore_tbl
-   INSERT @data
-      EXEC SalesByStore @storeid
-   SELECT title, qty FROM @data WHERE qty >= @qty
-go
-EXEC SalesByStore '7131'
-EXEC BigSalesByStore '7131', 25
-go
-DROP PROCEDURE SalesByStore, BigSalesByStore
-DROP TYPE SalesByStore_tbl
-

It is interesting to note that this code makes virtue of two things that usually are bad practice, to wit SELECT * and INSERT with out an explicit column list. This is not a matter of sloppiness – it is essential here. If someone wants to extend the result set of SalesByStore, the developer has to change the table type, and BigSalesByStore will survive, even if the developer does not know about its existence.

-

You could argue that this almost like an output TVP, but don't forget the other problems with INSERT-EXEC – of which there are two more to cover.

-

The Procedure is Executed in the Context of a Transaction

-

Even if there is no explicit transaction started with BEGIN TRANSACTION, an INSERT statement constitutes a transaction of its own. (So that the statement can be rolled back in case of an error.) That includes any procedure called through INSERT-EXEC. Is this bad or not? In many cases, this is not much of an issue. But there are a couple of situations where this can cause problems:

- -

Rollback and Error Handling is Difficult

-

In my article on error handling, I suggest that you should always have an error handler like

-
BEGIN CATCH
-   IF @@trancount > 0 ROLLBACK TRANSACTION
-   EXEC error_handler_sp
-   RETURN 55555
-END CATCH
-

The idea is that even if you do not start a transaction in the procedure, you should always include a ROLLBACK, because if you were not able to fulfil your contract, the transaction is not valid.

-

Unfortunately, this does not work well with INSERT-EXEC. If the called procedure executes a ROLLBACK statement, this happens:

-
Msg 3915, Level 16, State 0, Procedure SalesByStore, Line 9
-Cannot use the ROLLBACK statement within an INSERT-EXEC statement.
-
-

The execution of the stored procedure is aborted. If there is no CATCH handler anywhere, the entire batch is aborted, and the transaction is rolled back. If the INSERT-EXEC is inside TRY-CATCH, that CATCH handler will fire, but the transaction is doomed, that is, you must roll it back. The net effect is that the rollback is achieved as requested, but the original error message that triggered the rollback is lost. That may seem like a small thing, but it makes troubleshooting much more difficult, because when you see this error, all you know is that something went wrong, but you don't know what.

-

And, no, before you ask, there is no way to find out at run-time that you are called from INSERT-EXEC.

-

Dynamic SQL

-

You can also use INSERT-EXEC with dynamic -SQL:

-
INSERT #tmp (...)
-   EXEC sp_executesql @sql, @params, @par1, ...
-

-Presumably, you have created the statement in @sql within your stored procedure, so it is unlikely that a change in the result set will go unnoticed. So from this perspective, INSERT-EXEC is fine. But the restriction that INSERT-EXEC can't nest remains, so if you use it, no one can call you with INSERT-EXEC. For this reason, in many cases it is better to put the INSERT statement inside -the dynamic SQL.

-

There is also a performance aspect, that SQL - Server MVP Adam Machanic has detailed in a - blog post. The short - summary is that with INSERT-EXEC, data does not go directly to the target table but bounces over a "parameter table", - which incurs some overhead. Then again, if your target table is a temp table, and you put the INSERT inside the dynamic SQL, you -may face a performance issue because of recompilation.

-

Occasionally, I see people who use INSERT-EXEC to get back scalar values from their dynamic SQL statement, which they typically invoke with EXEC(). In this case, you should not use INSERT-EXEC at all, but instead use sp_executesql - which permits you to use OUTPUT parameters. Dynamic SQL is a complex topic, and if you are not acquainted - with it, I recommend you to read my article The - Curse and Blessings of Dynamic SQL.

-

Conclusion

-

INSERT-EXEC is simple to use, and if all you want to do is to grab a big result set from a stored procedure for further analysis ad hoc, it's alright.

-

But you should be very restrictive to use it in application code. Only use it when rewriting the procedure you are calling is completely out of the question. That is, the procedure is not part of your application: a system stored procedure or part of a third-party product. And in this case, you should make it a routine to always test your code before you take a new version of the other product in use.

-

Using the CLR

-

If INSERT-EXEC shines in its simplicity, using the CLR is complex and bulky. It is not likely to be -your first choice, and nor should it. However, if you are in the situation that you cannot change the callee, and nor it possible for you to use INSERT-EXEC because of any of its limitations, the CLR can be your last resort.

-

As a recap, here are the main situations where INSERT-EXEC fails you, and you would want to turn to the CLR:

- -

The CLR has one more advantage over INSERT-EXEC: it is less sensitive to - changes in the procedure you call. If a column is added to the - result set of the procedure, your CLR procedure will not break.

-

The idea as such is simple: you write a stored procedure in a CLR language like C# or - VB .NET that runs the callee and captures the result set(s) into a DataSet object. - Then you write the data from the DataSet back to the table where you want the -data. While simple, you need to write some code.

-

Let's have a look at an example. When you call the system procedure sp_helpdb - for a specific database, it produces two result sets, of which the second result set - lists the files for the database. Say that you want to gather this output for - all databases on the server. You cannot use INSERT-EXEC - due to the multiple result sets. To address this issue, I wrote a stored - procedure in C# that you find in the file - helpdb.cs. - In the script - helpdb.sql - you can see how I employ it. The C# procedure first runs sp_helpdb with the - DataAdapter.Fill method to get the data into a DataSet. It then iterates over - the rows in the second DataTable in the DataSet and inserts these into the temp -table created by the SQL script.

-

On SQL 2008 it is possible to simplify the solution somewhat with help of a table-valued parameter. I've written a - second version of the helpdb procedure, available in the file - - helpdb-2008.cs, where I simply pass the DataTable to the INSERT statement with a TVP and insert all rows in - one go. To achieve this, I need to create a table type. -I like to highlight two more things in helpdb-2008:

- -

Undoubtedly, this solution requires more work. You need to write more code than with most other methods, and you get an assembly that you must somehow deploy. If you already are using the CLR in your database, you probably already have routines for dealing with assemblies. But if you are not, that first assembly you add to the database is quite of a step to take. A further complication is that the CLR in SQL Server is disabled by default. To enabled it, you (or the DBA) need to run:

-
EXEC sp_configure 'clr enabled', 1
-RECONFIGURE
-

Another issue is that this solution goes against best practices for using the CLR in SQL Server. First of all, data access from the CLR should be avoided, simply because T‑SQL is better equipped for this. But here we are talking about situations where we need to circumvent limitations in T‑SQL. Another violation of best practice is the use of the DataAdapter, DataTable and DataSet classes. This is something to be avoided, because it means that you have data in memory in SQL Server outside the buffer pool. Of course, a few megabytes is not an issue, but if you would read several gigabytes of data into a DataSet, this could have quite nasty effects for the stability of the entire SQL Server process.

-

The alternative is to use a plain ExecuteReader and insert the rows as they come, possibly buffering them in small sets of say 500 rows to improve performance. This is certainly a viable solution, but it makes deployment even more difficult. To wit, you cannot perform the INSERT statements on the context connection while the DataReader is running, so you would need to open a second connection and this requires that the assembly has the permission EXTERNAL_ACCESS. So for practical purposes, you would only go this road, if you are anxious that you will read too much data than what is defensible for a DataSet.

-

Note: Initially, I got this idea when SQL Server MVP Steve Jones tried to run - DBCC SHRINKDATABASE from INSERT-EXEC to - capture the result set that SHRINKDATABASE - produces. However, this command cannot be run inside a transaction, so that did not - work out. I suggested to him that the CLR could work, and when I tested it I - found that it did ... on SQL 2008 only. On SQL 2005, my process was killed - with an access violation (which means a bug in SQL Server), so in this particular case not -even the last resort worked.

-

OPENQUERY

-

Introduction

-

Just like INSERT-EXEC this is a method where you can use the called stored procedure as-is. The purpose of OPENQUERY and its cousin OPENROWSET is to - permit you to run pass-through queries on linked servers. It can be very -useful, not the least if you want to join multiple tables on the remote server and want to be sure that the join is evaluated remotely. Instead of accessing a remote server, you can make a loopback connection to your own server, so you can to say -things like:

-
SELECT * FROM OPENQUERY(LOCALSERVER, 'EXEC sp_who') WHERE status = 'runnable'
-

If you want to create a table from the output of a stored procedure with SELECT INTO to save typing, this is the only method in the article that fits the bill. -

-

So far, OPENQUERY looks very simple, but as this chapter moves on you will learn that OPENQUERY can be very difficult to use. Moreover, it is not aimed at improving performance. It may save you from rewriting your stored procedure, but most likely you will have to put in more work overall – and in the end you get a poorer solution. While I'm not enthusiastic over INSERT-EXEC, it is still a far better choice than OPENQUERY.

-

Setup

-

In the example, LOCALSERVER may look like a keyword, but it is only name. This is how you define it:

-
EXEC sp_addlinkedserver @server = 'LOCALSERVER',  @srvproduct = '',
-                        @provider = 'SQLOLEDB', @datasrc = @@servername
-

To create a linked server, you must have the permission ALTER ANY SERVER, or - be a member of any of the fixed server roles sysadmin or setupadmin. Instead of SQLOLEDB, you can specify SQLNCLI, SQLNCLI10 or SQLNCLI11 depending on your version of SQL Server. SQL Server seems to use the most recent version of the provider anyway.

-

Implications of Using a Loopback Connection

-

It's important to understand that OPENQUERY opens a new connection to SQL Server. This has some implications:

- -

ANSI Settings

-

The settings ANSI_NULLS and ANSI_WARNINGS must be ON for queries - involving linked servers. Thankfully, these setting are also on by default in most contexts. There are mainly two exceptions: 1) very old client APIs like DB-Library. 2) If you are still on SQL 2000, beware that if you create stored procedures from Enterprise Manager, they will be created with ANSI_NULLS OFF, and this is a setting that is saved with the procedure and overrides the setting for the connection. (If you use Query Analyzer to create your procedures, the issue does not arise.) It's not very likely that you will run into this issue, but if you see the error message

-
Msg 7405, Level 16, State 1, Line 1
-Heterogeneous queries require the ANSI_NULLS and ANSI_WARNINGS options 
-to be set for the connection. This ensures consistent query semantics. 
-Enable these options and then reissue your query.
-

you will need to investigate where the bad setting is coming from.

-

The Query Parameter

-

The second parameter to OPENQUERY is the query to run on the remote server, and you may expect to be able to use a variable here, but you cannot. The query string must be a constant, since SQL Server needs to be able to determine the shape of the result set at compile time. This means that you as soon your query has a parameter value, you need to use dynamic SQL. Here is how to implement BigSalesByStore with OPENQUERY:

-
CREATE FUNCTION quotestring(@str nvarchar(MAX)) RETURNS nvarchar(MAX) AS
-BEGIN
-   DECLARE @ret nvarchar(MAX),
-           @sq  char(1)
-   SELECT @sq = ''''
-   SELECT @ret = replace(@str, @sq, @sq + @sq)
-   RETURN(@sq + @ret + @sq)
-END
-go
-CREATE PROCEDURE SalesByStore @storeid varchar(30) AS
-   SELECT t.title, s.qty
-   FROM   sales s
-   JOIN   titles t ON t.title_id = s.title_id
-   WHERE  s.stor_id = @storeid
-go
-CREATE PROCEDURE BigSalesByStore @storeid varchar(30),
-                                 @qty     smallint, 
-                                 @debug   bit = 0 AS
-   DECLARE @remotesql nvarchar(MAX),
-           @localsql  nvarchar(MAX)
-   SELECT @remotesql = 'EXEC ' + quotename(db_name()) + '.dbo.SalesByStore ' +
-                                 dbo.quotestring(@storeid)
-   SELECT @localsql = 'SELECT * FROM OPENQUERY(LOCALSERVER, ' + 
-                       dbo.quotestring(@remotesql) + ') WHERE qty >= @qty'
-   IF @debug = 1 PRINT @localsql
-   EXEC sp_executesql @localsql, N'@qty smallint', @qty
-go
-EXEC SalesByStore '7131'
-EXEC BigSalesByStore '7131', 25, 1
-go
-DROP PROCEDURE BigSalesByStore, SalesByStore
-DROP FUNCTION quotestring
-

What initially seemed simple to use, is no longer so simple. What I did not say above is there are two reasons why we need dynamic SQL here. Beside the parameter @storeid, there is also the database name. Since OPENQUERY opens a loopback connection, the EXEC statement must include the database name. Yes, you could hardcode the name, but sooner or later that will bite you, if nothing else the day you want to restore a copy of your database on the same server for test purposes. From this follows that in practice, there are not many situations in application code where you can use OPENQUERY without having to use dynamic SQL.

-

The code certainly requires some explanation. The function quotestring is a helper, taken from my article on dynamic SQL. It encloses a string in single quotes, and doubles any quotes within it to conform to the T‑SQL syntax. The problem with writing dynamic SQL which involves OPENQUERY is that you get at least three levels of nested strings, and if you try to do all at once, you will find yourself writing code which has up to eight consecutive single quotes that you or no one else can read. Therefore it is essential to approach the problem in a structured way like I do above. I first form the query on the remote server, and I use quotestring to embed the store id. Then I form the SQL string to execute locally, and again I use quotestring to embed the remote query. I could also have embedded @qty in the string, but I prefer to adhere to best practices and pass it as a parameter to the dynamic SQL string, As always when I use dynamic SQL, I include a @debug parameter, so that I can inspect the statement I've generated.

-

Note: the example is written for SQL 2005 and later. If you are on SQL 2000, you need to replace all occurrences of MAX with 4000.

-

The Battle with FMTONLY ON

-

To be able to compile a query that includes -OPENQUERY, SQL Server must retrieve metadata from the linked server to determine the shape of the result set for the pass-through query. SQL Server - makes all connections to the linked server through OLE DB, and the way OLE DB - determines metadata on SQL Server up to SQL 2008 is to run the command batch preceded by SET FMTONLY ON. - When FMTONLY is ON, SQL - Server does not execute any data-retrieving statements, but only sifts through the statements to return metadata about the - result sets. FMTONLY can be a source for confusion in more than one way. One situation is a procedure that creates a temp table: you will get an error message, -since the table never gets created in FMTONLY mode. Here is one example:

-
SELECT * FROM OPENQUERY(LOCALSERVER, 'EXEC msdb..sp_helpindex sysjobs')
-

On SQL 2008, this results in:

-
Msg 208, Level 16, State 1, Procedure sp_helpindex, Line 104
-Invalid object name '#spindtab'.
-

(The actual error message is different on about every version of SQL Server.)

-

This happens because the CREATE TABLE statement for the temp table is not executed. (Note that this is different for table variables. Since they are declared entities, they exist from the moment the procedure starts executing, FMTONLY or not.) Now when we know why this error occurs, we can spot a workaround:

-
SELECT * FROM OPENQUERY(LOCALSERVER,
-                        'SET FMTONLY OFF EXEC msdb..sp_helpindex sysjobs')
-

That is, we override the FMTONLY ON setting. But beware! This means that the procedure is executed twice, so - there certainly is a performance cost. Moreover, if the procedure performs updating - actions, these are also performed twice which is likely to be the completely wrong thing -to do. While I mention this trick here, I strongly recommend against using it, particularly in production code. This becomes even more emphasised with the release of SQL Server 2012: on SQL 2012, SET FMTONLY OFF has no effect at all! I will come back to why and what the alternatives are.

-

If you absolutely want to use a stored procedure that uses a temp table, here is a different trick. This definitely counts as one of the most obscure pieces of T‑SQL I've ever come up with:

-
CREATE PROCEDURE temp_temp_trick AS
-   DECLARE @fmtonlyon int
-   SELECT @fmtonlyon = 0
-   IF 1 = 0 SELECT @fmtonlyon = 1
-   SET FMTONLY OFF
-   CREATE TABLE #temp(...)
-   IF @fmtonlyon = 1 SET FMTONLY ON
-   -- Rest of the code goes here.
-

The reason that this works is that when FMTONLY is in effect, IF conditions are not evaluated, but both branches of IF ELSE are "executed". And while queries and CREATE TABLE statements are not performed in FMTONLY mode, variable assignments are. This way we lure SQL Server to create the temp table at compile-time, but the full procedure is not executed. This trick is arguably better than putting SET FMTONLY OFF in the call to OPENQUERY. But it still does not work with SQL 2012, so it is nothing you should put in code that is supposed to live for a couple of years. And obviously, this is not an option, if you cannot change the procedure you are calling.

-

Another common reason you get problems with FMTONLY is that the result set is produced in dynamic SQL. Again, this prevents SQL Server from determining the metadata. The famous, but undocumented, system stored procedure sp_who2 uses dynamic SQL to size the columns of the result set. On SQL 2008 the query

-
SELECT * FROM OPENQUERY(LOCALSERVER, 'EXEC sp_who2')
-results in: -
Msg 7357, Level 16, State 2, Line 1
-Cannot process the object "EXEC sp_who2". The OLE DB provider "SQLNCLI10" 
-for linked server "LOCALSERVER" indicates that either the object has no columns 
-or the current user does not have permissions on that object.
-

Again, the workaround with SET FMTONLY OFF can be applied if you are on SQL 2008 or earlier. (Except that in this particular example it still does not work on SQL 2005 and SQL 2008 because sp_who2 returns two columns called SPID.) The same caveats apply: the procedure is executed twice, and it does not work on SQL 2012. So don't go there.

-

Metadata Retrieval in SQL 2012

-

In SQL 2012, Microsoft have scrapped SET FMTONLY ON which never did a good job; there are several other issues with it, that I have not covered here. Instead they use the new stored procedure sp_describe_first_result_set which is a more robust way to determine metadata, why the trick with SET FMTONLY OFF is no longer applicable. (To clarify: SET FMTONLY ON still works in SQL 2012 to support calls from legacy clients, and SQL 2012 also uses SET FMTONLY ON for linked servers running earlier versions of SQL Server. But for a loopback connection, SQL 2012 only uses sp_describe_first_result_set.)

-

While this procedure avoids many of the problems with SET FMTONLY ON, you will still get an error if your procedure uses a temp table or dynamic SQL. The good news is that Microsoft now offers a method to describe the result set. You can say:

-
SELECT * FROM OPENQUERY(LOCALSERVER, 
-              'EXEC msdb..sp_helpindex sysjobs
-               WITH RESULT SETS ((index_name        sysname,
-                                  index_description nvarchar(500),
-                                  index_keys        nvarchar(500)))')
-

That is, the new WITH RESULT SETS clause permits you to declare how the result set from the stored procedure looks like. SQL Server validates the actual result set against the description, and if there is an inconsistency, you will get an error. Pay attention to the syntax: the column list is enclosed in two pair of parentheses.

-

Rather than specify a list of columns, you can also specify the name of a table, view, table-valued function or a table type. Please refer to the topic on EXECUTE in Books Online for full details on the WITH RESULT SETS clause.

-

If you want to know how the result set from the stored procedure you are calling looks like, you can say:

-
EXEC sp_describe_first_result_set N'your_sp'
-

It has to be admitted that it takes some work to translate the output to a column list for WITH RESULT SETS. And obviously, if you wanted to use SELECT INTO with OPENQUERY to save your from typing a CREATE TABLE statement, this was not what you wanted.

-

The Effect of DML Statements

-

Yet a problem with OPENQUERY is demonstrated by -this script:

-
CREATE TABLE nisse (a int NOT NULL)
-go
-CREATE PROCEDURE silly_sp @x int AS
-   --SET NOCOUNT ON
-   INSERT nisse VALUES (@x)
-   SELECT @x * @@trancount
-   SELECT @x * 3
-go
-SELECT * FROM OPENQUERY(LOCALSERVER, 'EXEC tempdb.dbo.silly_sp 7')
-go
-SELECT * FROM nisse
-go
-

The script yields the same errors as for sp_who2, saying that there are no columns. -The reason for this message is that the first "result set" is the -rows affected -message generated by the INSERT statement, and this message lures OPENQUERY to think that there were no columns in the result set. Adding SET NOCOUNT ON to the procedure resolves this -issue. You could also add SET NOCOUNT ON the command string you pass to OPENQUERY. (And in difference to tricking with SET FMTONLY ON, this is a perfectly valid thing to do.)

-

Implicit Transactions

-

When SQL Server executes the query -for real, the OLE DB provider first issues SET IMPLICIT_TRANSACTIONS ON. With this setting - SQL Server starts a transaction when an INSERT, UPDATE or DELETE statement is - executed. (This also applies to a few more statements, see Books Online for - details.) This can give some surprises. For instance, take the script above. -Once SET NOCOUNT ON is in force, this is the output:

-
-----------
-          7
-
-(1 row(s) affected)
-
-a
------------
-
-(0 row(s) affected)
-

We get back '7' from the call to silly_sp, which indicates - that @@trancount is 1, and there is thus an open transaction, despite there - is no BEGIN TRANSACTION in the procedure. (We don't get the '21' that we get - when we execute silly_sp directly, because with OPENQUERY, we only get one - result set.) You also see that when we SELECT directly from nisse after - the call to OPENQUERY, that the table is empty. This is because the implicit - transaction was rolled back.

-

Final Words

-

As you have seen, at first OPENQUERY seems very simple to use, but the stakes quickly gets higher. If you are still considering to use OPENQUERY after having read this section, I can only wish you good luck and I hope that you really understand what you are doing. OPENQUERY was not intended for - accessing the local server, and you should think twice before you use -it that way.

-

Using XML

-

Introduction

-

XML is a solution that aims at the same spot as sharing a temp table and process-keyed tables. That is, the realm of general solutions without restrictions, to the price of a little more work. While SQL 2000 has support for XML, if you want to use XML to pass data between stored procedures, you need to have at least SQL 2005.

-

Constructing the XML

-

We will look at a version of SalesByStore and BigSalesByStore which uses XML, but since this is a little too much to digest in one go, we first only look at SalesByStore_core to see how we construct the XML:

-
CREATE PROCEDURE SalesByStore_core @storeid varchar(30),
-                                   @xmldata xml OUTPUT AS
-   SET @xmldata = (
-      SELECT t.title, s.qty
-      FROM   sales s
-      JOIN   titles t ON t.title_id = s.title_id
-      WHERE  s.stor_id = @storeid
-      FOR XML RAW('SalesByStore'), TYPE)
-go
-

In the previous version of SalesByStore_core, we stored the data from the result in a temp table. Here we use FOR XML RAW to generate an XML document that we save to the output parameter @xmldata.

-

This is how the resulting XML document may look like:

-
<SalesByStore title="Is Anger the Enemy?" qty="20" />
-<SalesByStore title="The Gourmet Microwave" qty="25" />
-<SalesByStore title="Computer Phobic AND Non-Phobic Individuals: Behavior Variations" qty="20" />
-<SalesByStore title="Life Without Fear" qty="25" />
-<SalesByStore title="Prolonged Data Deprivation: Four Case Studies" qty="15" />
-<SalesByStore title="Emotional Security: A New Algorithm" qty="25" />
-

FOR XML has three more options beside RAW: AUTO, ELEMENTS and PATH, but for our purposes here, RAW is the simplest to use. You don't have to specify a name for the elements; the default in this case will be row, but I would suggest that using a name is good for clarity.

-

The keyword TYPE ensures that the return type of the SELECT query is the xml data type; without TYPE the type would be nvarchar(MAX). TYPE is not needed here, since there will be an implicit conversion to xml anyway, but it can be considered good practice to include it. Except... there is a bug in SQL 2008 which makes XML documents created with TYPE to be less efficient.

-

Converting the XML Data Back to Tabular Format

-

Since SalesByStore should work like it did originally, it has to convert the data back to tabular format, a process known as shredding. Here is how the XML version looks like:

-
CREATE PROCEDURE SalesByStore @storeid varchar(30) AS
-   DECLARE @xmldata xml
-   EXEC SalesByStore_core @storeid, @xmldata OUTPUT
-
-   SELECT T.c.value('@title', 'varchar(80)') AS title,
-          T.c.value('@qty',   'smallint') AS qty
-   FROM @xmldata.nodes('SalesByStore') AS T(c) 
-go
-

To shred the document, we use two of the xml type methods. The first is nodes which shreds the documents into fragments of a single element. That is, this part:

-
FROM  @xmldata.nodes('SalesByStore') AS T(c)
-

The part T(c) defines as alias for the one-column table as well as an alias for the column. To get the values out of the fragments, we use another xml type - method, value, to get the individual values out of the fragment. The value method - takes two arguments whereof the first addresses the value we want to extract, and the - second specifies the data type. The first parameter is a fairly complex story, but as - long as you follow the example above, you don't really need to know any more. Just keep in mind that you must put an @ before the attribute names, else you would be addressing an element. In the XML section of my article Arrays - and Lists in SQL Server 2005 and Beyond, I have some more information about nodes and value.

-

To make the example complete, here is the XML version of BigSalesByStore. To avoid having to repeat the call to value in the WHERE clause, I use a CTE (Common Table Expression).

-
CREATE PROCEDURE BigSalesByStore @storeid varchar(30),
-                                 @qty     smallint AS
-   DECLARE @xmldata xml
-   EXEC SalesByStore_core @storeid, @xmldata OUTPUT
-   
-   ; WITH SalesByStore AS (
-      SELECT T.c.value('@title', 'varchar(80)') AS title,
-             T.c.value('@qty',   'smallint') AS qty
-      FROM  @xmldata.nodes('SalesByStore') AS T(c) 
-   )
-   SELECT title, qty
-   FROM   SalesByStore   
-   WHERE  qty >= @qty
-go
-

Input and Output

-

In this is example the XML document is output-only, but it's easy to see that the same method can be used for input-only scenarios. The caller builds the XML document and the callee shreds it back to a table.

-

What about input-output scenarios like the procedure ComputeTotalStoreQty? One possibility is of course that the callee shreds the data into a temp table, performs its operation, and converts the data back to XML. A second alternative is that the callee modifies the XML directly using the xml type method modify. I will spare you from an example of this, however, as it unlikely that you would try it, unless you already are proficient in XQuery. A better alternative may be to mix methods: use a table-valued parameter for input and only use XML for output.

-

Parent-child Data

-

The result set in the example is from a single table, but what if we have some form of parent/child-relationship? - Say that we want to return the name of all authors, as well as all the titles they have written. With temp tables or - process-keyed tables, the natural solution would be to - use two tables (or actually three, since in pubs there is a many-to-many - relationship between titles and authors, but I overlook this here.) But since - XML is hierarchical, it would be more natural to put everything in a single XML - document, and here is a query to do this:

-
SELECT a.au_id  ,  
-       a.au_lname, 
-       a.au_fname ,
-       (SELECT t.title 
-        FROM   pubs..titleauthor ta  
-        JOIN   pubs..titles t ON t.title_id = ta.title_id
-        WHERE  a.au_id = ta.au_id
-        FOR  XML RAW('titles'), TYPE)
-FROM   pubs..authors a
-FOR XML RAW('authors'), TYPE
-

-Rather than a regular join query, I use a subquery for the titles, because I -only want one node per author with all titles. With a join, I get one author -node for each title, so that authors with many books appear in multiple nodes. -The subquery uses FOR XML to create a nested XML document, and -this time the -TYPE option is mandatory, since without it the nested XML data would be included as a plain string.

-

- To retrieve the -titles from the XML document, you could use this query:

-
SELECT au_id = A.item.value('@au_id', 'varchar(11)'),
-       title = T.item.value('@title', 'varchar(80)')
-FROM   @x.nodes('/authors') AS A(item) 
-CROSS  APPLY A.item.nodes('titles') AS T(item)
-

The first call to nodes gives you a fragment per authors node, and then you use CROSS APPLY to dig down to the titles node. For a little longer discussion on this way of shredding a hierarchical XML document, see the XML section of my article Arrays -and Lists in SQL Server 2005 and Beyond.

-

Assessing the Method

-

So far the technique to use this method. Let's now assess it. If you have never worked with XML in SQL Server, you are probably saying to yourself I will never use that!. And one can hardly blame you. This method is like pushing the table camel through the needles eye of the parameter list of a stored procedure. Personally, I think the method spells k-l-u-d-g-e. But it's certainly a matter of opinion. I got a mail from David Walker, and he -went as far as saying this is the only method that really works.

-

And, that cannot be denied, there are certainly advantages with XML over about all the other methods I have presented here. It is less contrived than using the CLR, and it is definitely a better option than OPENQUERY. You are not caught up with -the limitations of table-valued functions. Nor do you have any of the issues with INSERT-EXEC. Compared to - temp tables and process-keyed tables, you don't have to be worried about recompilation or that programmers fail to clean up a process-keyed table after use.

-

- When it comes to performance, you get some cost for building the XML document -and shredding it shortly thereafter. Then again, as long as the amount of data is small, say less than 200 KB, the data will stay in memory and there is no logging involved like when you use a table of any sort. Larger XML documents will spill to disk, though. A general caveat is that inappropriate addressing in a large XML -document can be a real performance killer, so if you expect large amounts of data, you have to be careful. (And these issues can appear with sizes below 200 KB.)

-

Besides the daunting complexity, there are downsides with XML from a robustness perspective. XML is more sensitive to errors. If you make - a spelling mistake in the first argument to value, you will silently get NULL -back, and no error message. Likewise, if you get the argument to nodes - wrong, you will simply get no rows back. The same problem arises if you change a - column alias or a node name in the FOR XML query, and forget to update a caller. When you use a process-keyed table or a temp -table you will get an error message at some point, either at compile-time or at run-time.

-

Another weak point is that you have to specify the data type for each column in the call to value, inviting you to make the mistake to use different data types for the same value in different procedures. This mistake is certainly possible when use temp tables as well, although copy-and-paste are easier to apply on the latter. With a process-keyed table it cannot happen at all.

-

One thing I like with tables is that they give you a description of the data you are passing around; this is not the least important when many procedures are using the same process-keyed table. This is more difficult to achieve with XML. You could use schema collections for the task, but you will not find very many SQL Server DBAs who speak XSD fluently. Also, schema-bound XML tends to incur a performance penalty in SQL Server.

-

For these reasons, I feel that using a temp table or a process-keyed table are better choices than XML. And while I find XML an overall better method than INSERT-EXEC or OPENQUERY, these methods have the advantage that you don't have to change the callee. So that kind of leaves XML in nowhere land. But as they say, your mileage may vary. If you feel that XML is your thing, go for it!

-

Using Cursor Variables

-

This method was suggested to me by Peter Radocchia. Cursor variables were - introduced in SQL 7, but I suspect that many SQL developers are at most only - dimly aware of their existence. I never use them myself. Here is an example -of how you use them to bring the result set from one procedure to another:

-
CREATE PROCEDURE get_cursor @cursor CURSOR VARYING OUTPUT AS
-   SET @cursor = CURSOR STATIC FOR
-   SELECT au_id, au_lname, au_fname FROM pubs..authors
-   OPEN @cursor
-go
-CREATE PROCEDURE caller AS
-   DECLARE @cursor CURSOR
-   DECLARE @au_id char(11),
-           @au_fname varchar(40),
-           @au_lname varchar(40)
-   SET NOCOUNT ON
-   EXEC get_cursor @cursor OUTPUT
-   WHILE 1 = 1
-   BEGIN
-      FETCH NEXT FROM @cursor into @au_id, @au_lname, @au_fname
-      IF @@fetch_status <> 0
-         BREAK
-      PRINT 'Au_id: ' + @au_id + ', name: ' + @au_fname + ' ' + @au_lname
-   END
-   DEALLOCATE @cursor
-go
-EXEC caller
-go
-DROP PROCEDURE caller, get_cursor
-

Note that the cursor is STATIC. Static cursors are much preferable over dynamic cursors, the default cursor type, since the latter essentially evaluates the query for every FETCH. When you use a static cursor, the result set of the SELECT statement is saved into a temp table, from where FETCH retrieves the data.

-

I will have to admit that I see little reason to use this method. Just like - INSERT-EXEC, this method requires an exact match between the caller and the - callee for the column list. And since data is processed row by row, - performance is likely to take a serious toll if there are any volumes.

-

The Challenges of Linked Servers

-

If your procedures are on different servers, the level of difficulty rises steeply. There are many restrictions with linked servers, and several of the methods I have presented cannot be used at all. Ironically, some of the methods that I have discouraged you from, suddenly step up as the better alternatives. One reason for this is that with linked servers, things are difficult anyway.

-

It is somewhat easier to retrieve data from a procedure on a linked server than passing data to it, so let's look at output first. If you have an input-output scenario, you should probably look into mixing methods.

-

Output

-

If all you want to do is to get data back, these methods works:

-

OUTPUT parameters – but only for data types that -are 8000 bytes or less. That is, you cannot retrieve the value of output parameters that are -varchar(MAX) etc.

-

INSERT-EXEC – INSERT-EXEC works fine with linked servers. Actually even better than with local procedures, since if the procedure you call uses INSERT-EXEC, this will not matter. The only restriction is that the result set must not include types that are not supported in distributed queries, for instance xml. ((n)varchar(MAX) is OK.) The fact that INSERT-EXEC starts a transaction can cause a real nightmare, since the transaction now will be a distributed transaction and this requires that you configure MSDTC (Microsoft Distributed Transaction Coordinator) correctly. If both servers are in the same domain, it often works out of the box. If they are not, for instance because you only have a workgroup, it may be impossible (at least I have not been able to). On SQL 2008 and later, you may be able to escape the problem by setting the option remote proc transaction promotion for the linked server to false. (Note that this affects all uses of the linked server, and there may be situations where a distributed transaction is desirable.)

-

OPENQUERY – since OPENQUERY is a feature for linked -servers in the first place, there is no difference to what I discussed above. It is still difficult with lots of pitfalls, but the land of linked servers is overall difficult. Nevertheless, INSERT-EXEC will in many cases be simpler to use. But with OPENQUERY you don't have to bounce the remote data over a table, and if result set of the remote procedure is extended with more columns, your code will not break.

-

Using the CLR – Using the CLR for linked servers is interesting, because the normal step would be to connect to the remote server directly, and bypass the local definition of linked servers – and thereby bypass all restrictions with regards to data types. When you make a connection to a remote server through the CLR, the default is enlist into the current transaction, which means that you have to battle MSDTC. However, you can easily escape this battle by adding enlist=false in the connection string to the remote server. This works on all versions of SQL Server from SQL 2005 and on. When using the CLR to access a remote server, there are no obstacles with using ExecuteReader and store the data into a local table as they come, since you are using two different connections. For a CLR procedure to be able to access a remote server, the assembly must be installed with the permission EXTERNAL_ACCESS.

-

XML – You cannot use the xml data type in a call to a remote stored procedure. However, you can make the OUTPUT parameter to be varchar(8000) and return the XML document that way – if it fits.

-

The other methods do not work, and that includes user-defined functions. -You cannot call a user-defined function on a linked server.

-

Input

-

If you want to pass a large amount of data for input over a linked server, there are -three possibilities. Or three kludges if you like.

-

XML might be the easiest. The xml data type is not supported in calls to remote procedures, so you need to convert the XML document to -nvarchar(MAX) or varbinary(MAX). The parameter on the other side -can still be xml.

-

You cannot pass a table-valued parameter to a remote stored procedure. But you could have a CLR stored procedure that connects to the remote server and passes the TVP directly; as noted above, the assembly needs to have the permission EXTERNAL_ACCESS. You cannot pass a TVP to a CLR stored procedure from T‑SQL, so you would either have to pass the data as XML to the CLR procedure, or the CLR procedure would have read the data from a (temp) table.

-

The last alternative is really messy. The caller stores the data in a - process-keyed table locally and then calls the remote - procedure, passing the process-key. The remote procedure then calls back to the - first server and either selects directly from the process-keyed table, or calls a -procedure on the source server with INSERT-EXEC. For an input-output scenario, the callee could write data back directly to the process-keyed table.

-

Acknowledgments and Feedback

-

The issue about using SET FMTONLY ON is something that I learnt from Umachandar Jayachandran - at Microsoft. SQL Server MVP Tony Rogerson pointed out -that a process-keyed table should have a clustered index on the process key. Simon Hayes suggested some clarifications. - Peter Radocchia suggested the cursor method. Richard St-Aubin and Wayne Bloss both suggested interesting approaches when sharing temp tables. -Thanks -to SQL Server MVP Iztik Ben-Gan for making me aware of global temp tables and -start-up procedures. Sankar Reddy pointed out to me that my original suggestion -for XML as a solution for linked servers was flawed. Greg Borota pointed out that -an old -leftover from SQL 2000 still was in the text. SQL Server MVP Adam Machanic made some -interesting revelations about INSERT-EXEC with dynamic SQL. -David Walker encouraged me to write more in depth on XML, -and SQL Server MVP -Denis Gobo gave me a tip on that part. Jay Michael pointed out an error in the section on table parameters.

-

If you have suggestions for improvements, corrections on topic, language or - formatting, please mail me at - esquel@sommarskog.se. If you have technical questions that any knowledgeable -person could answer, I encourage you to post to the Transact-SQL forum on MSDN/Technet or any other SQL forum you frequent.

-

Revision History

-

2013-11-02 – Added a subsection about process-keyed tables how they could be implemented with non-durable Hekaton tables in SQL 2014.

-

2013-03-24 – Modified the subsection A Maintenance Problem to include a good suggestion from Wayne Bloss about using a table type as the base for a shared temp table.

-

2012-07-18 – There were a few errors and mumblings in the paragraph about using the CLR for linked servers that I have corrected. Particularly I incorrectly said that you would not be enlisted in any transaction unless you specify this. The reverse applies: by default you are enlisted, but you can include enlist=true to the connection string.

-

2012-05-11 – Added a note about SQL Server Data Tools (SSDT) and sharing temp tables.

-

2011-12-31 – I have performed a general overhaul of the article in hope to make things clearer. Particularly, there are now more complete examples for the various techniques. In terms of new technical content I have updated the article for SQL 2012, which mainly affects OPENQUERY, since the trick with SET FMTONLY OFF does not work on SQL 2012. I have also expanded the closing chapter on linked servers a bit.

-

2010-01-10 – Extended the XML section with more - examples and a deeper discussions on pros and cons. Updated the section - table parameters for the fact that SQL 2008 is no - longer in beta, and fixed error in code sample. Modified the section on - OPENQUERY to explain why FMTONLY ON exists more - accurately.

-

2009-06-29 – Added a brief discussion on performance about INSERT-EXEC with dynamic SQL, and a reference -to a blog post from SQL -Server MVP Adam Machanic.

-

2009-05-18 – The section on INSERT-EXEC said that it does not work with table variables, which is right -on SQL 2000 only.

-

2008-08-16 – Added a trick for sharing temp tables, suggested by Richard St-Aubin.

-

2008-06-06 – Added a section on linked -servers, and removed the note on linked servers in the -XML section, since it was not very accurate.

-

2008-03-03 – Added a section on how could use the CLR -when INSERT-EXEC fails you. -Reviewed the section on XML anew, pointing out that it's -useful when working with linked servers.

-

2007-09-23 – Added sections on global temp tables and -table -parameters. Reviewed the section on XML.

-

2005-12-19 – Article revised to cover SQL 2005, and added - section on cursor variables.

-

2005-03-27 – Various minor clarifications on suggestion from Simon - Hayes. The bug about INSERT-EXEC and IMPLICIT_TRANSACTIONS is now fixed in - SQL 2000 SP4 and SQL 2005.

-

Back to my home page.

- - -
-
- -
-
-
\ No newline at end of file diff --git a/Articles/README.md b/Articles/README.md index 8649f844..09dccaca 100644 --- a/Articles/README.md +++ b/Articles/README.md @@ -1,43 +1,675 @@ -# Must read Microsoft SQL Server articles +# Microsoft SQL Server Articles +Articles types: + - **[AZ]** Azure Articles + - **[B]** Backup Articles + - **[BENCH]** Benchmarking Articles + - **[IDX]** Index Articles + - **[CLR]** [SQL Server Common Language Runtime Integration](https://docs.microsoft.com/en-us/dotnet/framework/data/adonet/sql/sql-server-common-language-runtime-integration) Articles + - **[COR]** Corruption Articles + - **[DAX]** Data Analysis Expressions Articles + - **[DBA]** DBA Articles + - **[DEV]** Developers Articles + - **[DM]** Database Mail + - **[DBCC]** DBCC commands + - **[DS]** Dynamic SQL + - **[MG]** Migration Articles + - **[J]** Jobs Articles + - **[P]** Performance Articles + - **[PS]** Powershell Articles + - **[QS]** Query Store Articles + - **[R]** R Language + - **[SSIS]** [SQL Server Integration Services](https://docs.microsoft.com/en-us/sql/integration-services/sql-server-integration-services) + - **[V]** Visualization Articles + - **[X]** XML, JSON, YAML, HTML Articles + - **[XE]** [Extended events](https://docs.microsoft.com/en-us/sql/relational-databases/extended-events/extended-events) -| Title | Author | Modified Date | -|-----------------------------------------------------------------------------------|------------------------------------------|---------------| -| [SQL Server Index Design Guide] | Microsoft | ? | -| [SQL Server 2012 Security Best Practices - Microsoft] | Bob Beauchemin | 2012-01-15 | -| [Help, my database is corrupt. Now what?] | Gail Shaw | 2010-04-23 | -| [Knee-Jerk Performance Tuning : Incorrect Use of Temporary Tables] | Paul Randal | 2016-04-06 | -| [The Curse and Blessings of Dynamic SQL] | Erland Sommarskog | 2015-04-14 | -| [Dynamic Search Conditions in T-SQL] | Erland Sommarskog | 2015-11-15 | -| [Slow in the Application, Fast in SSMS] | Erland Sommarskog | 2013-08-30 | -| [How to share data between stored procedures] | Erland Sommarskog | 2013-11-02 | -| [Arrays and Lists in SQL Server 2008] | Erland Sommarskog | 2012-07-01 | -| [Giving Permissions through Stored Procedures] | Erland Sommarskog | 2011-12-31 | -| [Error and Transaction Handling in SQL Server] | Erland Sommarskog | 2015-05-03 | -| [SQL Server Columnstore Articles] | Niko Neugebauer | 2016-05-09 | -| [Documentation: It Does not Suck!] | Jes Schultz Borland | 2013-01-15 | -| [The Data Loading Performance Guide] | Thomas Kejser, Peter Carlin, Stuart Ozer | 2009-01-15 | -| [Required Testing for Installing SQL Server Cumulative Updates and Service Packs] | Kendra Little | 2016-04-28 | -| [Stop Shrinking Your Database Files. Seriously. Now.] | Brent Ozar | 2009-08-19 | -| [How to shrink a database in 4 easy steps] | Andy Mallon | 2016-04-28 | -| [Introduction to the Index Operational Statistics Dynamic Management Function] | Tim Ford | 2016-04-26 | -| [Updating Statistics in SQL Server: Maintenance Questions & Answers] | Kendra Little | 2016-04-18 | -| [Overcoming Variable Limitations in SQLCmd Mode] | Robert L Davis | 2015-11-23 | -| [Contents of a Run Book] | Microsoft | 2002-11-12 | -| [Compressed and Encrypted Backups on the Cheap] | Randolph West | 2002-11-12 | - +| Title | Author | Modified | Type | +|-------------------------------------------------------------------------------------------------------------------------|------------------------------------------|------------|-------------| +| [SQL Server Index Design Guide] | Microsoft | ? | [IDX] | +| [SQL Server 2012 Security Best Practices - Microsoft] | Bob Beauchemin | 2012-01-15 | | +| [Help, my database is corrupt. Now what?] | Gail Shaw | 2010-04-23 | [COR] | +| [Understanding how SQL Server executes a query] | Remus Rusanu | 2016-04-15 | | +| [What to Do When DBCC CHECKDB Reports Corruption] | Brent Ozar | 2016-05-19 | [COR] | +| [Troubleshooting SQL Server CPU Performance Issues] | Joe Sack | 2013-05-28 | [P] | +| [Knee-Jerk Performance Tuning : Incorrect Use of Temporary Tables] | Paul Randal | 2016-04-06 | [P] | +| [High Performance T-SQL using Code Patterns] | Dwain Camps | 2015-05-27 | | +| [SQL Server Database Corruption Repair] | Steve Stedman | 2015-08-26 | [COR] | +| [Basic SQL Server Performance Troubleshooting For Developers] | Tony Davis | 2015-08-14 | [P] | +| [The Curse and Blessings of Dynamic SQL] | Erland Sommarskog | 2015-04-14 | [DS] | +| [Dynamic Search Conditions in T-SQL] | Erland Sommarskog | 2016-10-29 | | +| [Slow in the Application, Fast in SSMS] | Erland Sommarskog | 2013-12-18 | | +| [How to share data between stored procedures] | Erland Sommarskog | 2013-11-02 | | +| [Arrays and Lists in SQL Server 2008] | Erland Sommarskog | 2016-08-21 | | +| [Giving Permissions through Stored Procedures] | Erland Sommarskog | 2011-12-31 | | +| [Error and Transaction Handling in SQL Server] | Erland Sommarskog | 2015-05-03 | | +| [Using the Bulk-Load Tools in SQL Server] | Erland Sommarskog | 2016-12-08 | | +| [Using Table-Valued Parameters in SQL Server and .NET] | Erland Sommarskog | 2016-12-08 | | +| [SQL Server Columnstore Articles] | Niko Neugebauer | 2016-05-09 | | +| [Documentation: It Does not Suck!] | Jes Schultz Borland | 2013-01-15 | | +| [The Data Loading Performance Guide] | Thomas Kejser, Peter Carlin, Stuart Ozer | 2009-01-15 | | +| [Required Testing for Installing SQL Server Cumulative Updates and Service Packs] | Kendra Little | 2016-04-28 | | +| [Stop Shrinking Your Database Files. Seriously. Now.] | Brent Ozar | 2009-08-19 | | +| [How to shrink a database in 4 easy steps] | Andy Mallon | 2016-04-28 | | +| [Introduction to the Index Operational Statistics Dynamic Management Function] | Tim Ford | 2016-04-26 | [IDX] | +| [Updating Statistics in SQL Server: Maintenance Questions & Answers] | Kendra Little | 2016-04-18 | | +| [Overcoming Variable Limitations in SQLCmd Mode] | Robert L Davis | 2015-11-23 | | +| [Contents of a Run Book] | Microsoft | 2002-11-12 | | +| [Compressed and Encrypted Backups on the Cheap] | Randolph West | 2015-04-19 | [B] | +| [Curing Data-Obesity in OLTP Databases] | Feodor Georgiev | 2015-02-06 | | +| [Understanding GRANT, DENY, and REVOKE in SQL Server] | K. Brian Kelley | 2013-02-27 | | +| [Monitor SQL Server Transaction Log File Free Space] | Mike Eastland | 2015-05-12 | | +| [Dynamically Query a 100 Million Row Table-Efficiently] | Gary Strange | 2016-05-27 | | +| [Understanding and Using Parallelism in SQL Server] | Paul White | 2011-03-03 | | +| [Diagnosing and Resolving Latch Contention on SQL Server] | Microsoft | 2014-02-28 | | +| [Parallel Execution Plans – Branches and Threads] | Paul White | 2013-10-07 | | +| [Nasty Fast PERCENT_RANK] | Alan Burstein | 2016-06-07 | | +| [Looking at VIEWs, Close Up] | Joe Celko | 2016-05-10 | | +| [SQL Server 2016: It Just Runs Faster] | Thomas LaRock | 2016-06-01 | | +| [TSQL JOIN Types Poster] | Steve Stedman | 2015-05-28 | | +| [It is Hard To Destroy Data] | Michael J Swart | 2015-05-20 | | +| [How to transfer logins and passwords between instances of SQL Server] | Microsoft | 2013-12-07 | | +| [Finding File Growths with Extended Events] | Andy Galbraith | 2016-06-13 | [XE] | +| [Questions You Should Ask About the Databases You Manage] | Brent Ozar | 2016-06-16 | | +| [Clustered Indexes in SQL Server] | Derik Hammer | 2016-06-22 | [IDX] | +| [Triage Quiz: Is Your SQL Server Safe?] | Angie Rudduck | 2016-06-15 | | +| [Why Not Just Create Statistics?] | Erik Darling | 2016-07-14 | | +| [Understanding the SQL Server NOLOCK hint] | Greg Robidoux | 2011-08-16 | | +| [Recover access to a SQL Server instance] | Aaron Bertrand | 2012-08-30 | | +| [SQL Server 2016 Upgrade Planning] | Jen Underwood | 2016-06-28 | | +| [Graphs and Graph Algorithms in T-SQL] | Hans Olav Norheim | 2010-05-22 | | +| [Episode 4: SQL Server R Services makes you a smarter T-SQL Developer] | Sanjay Mishra | 2016-07-12 | [DEV],[R] | +| [How to Set Max Degree of Parallelism in SQL Server] | Kendra Little | 2016-07-14 | | +| [Undocumented Query Plans: Equality Comparisons] | Paul White | 2016-06-22 | | +| [Simplified Order Of Operations] | Michael J. Swart | 2016-07-20 | | +| [SQL Server Statistics Basics] | Robert Sheldon | 2016-07-22 | | +| [Learn to Use sp_Blitz, sp_BlitzCache, sp_BlitzFirst, and sp_BlitzIndex with These Tutorial Videos] | Brent Ozar | 2016-09-12 | | +| [Where is a record really located?] | Tim Chapman | 2016-09-15 | | +| [Instant File Initialization (IFI)] | Steve Stedman | 2016-09-19 | | +| [How to Query the StackExchange Databases] | Brent Ozar | 2014-01-17 | | +| [How to Troubleshoot Performance in SQL Server (Dear SQL DBA)] | Kendra Little | 2016-06-02 | | +| [How to Log Activity Using sp_whoisactive in a Loop] | Brent Ozar | 2016-07-01 | | +| [Logging Activity Using sp_WhoIsActive – Take 2] | Tara Kizer | 2016-07-26 | | +| [How To Fix Forwarded Records] | Tara Kizer | 2016-07-29 | | +| [Should I Automate my Windows Updates for SQL Server?] | Kendra Little | 2016-07-28 | | +| [Finding the Right Path] | Jason Brimhall | 2016-08-24 | | +| [#BackToBasics : An Updated "Kitchen Sink" Example] | Aaron Bertrand | 2016-06-01 | | +| [Locking and Blocking in SQL Server] | Brent OZar | 2016-01-01 | | +| [Nested Loops Prefetching] | Paul White | 2013-08-31 | | +| [Performance tuning backup and restore operations] | Derik Hammer | 2015-12-21 | [B],[P] | +| [Execution Plan Analysis: The Mystery Work Table] | Paul White | 2013-03-08 | | +| [How to move data between File Groups in SQL Server] | Klaus Aschenbrenner | 2016-09-26 | | +| [Optimizing Your Query Plans with the SQL Server 2014 Cardinality Estimator] | Joseph Sack | 2014-06-24 | | +| [Parallelism in SQL Server Query Tuning] | Itzik Ben-Gan | 2011-03-14 | | +| [What You Need to Know about the Batch Mode Window Aggregate Operator in SQL Server 2016: Part 1] | Itzik Ben-Gan | 2016-05-31 | | +| [What To Do If sp_BlitzFirst Warns About High Compilations] | Erik Darling | 2016-09-27 | | +| [Questions You Should Be Asking About Your Backups] | Erik Darling | 2016-10-13 | [B] | +| [Evolutionary Database Design] | Martin Fowler | 2016-05-01 | | +| [Implementing a custom sort] | Rob Farley | 2016-10-17 | | +| [Deletes that Split Pages and Forwarded Ghosts] | Paul White | 2012-08-31 | | +| [Query Optimizer Deep Dive - Part 1] | Paul White | 2012-04-28 | | +| [Query Optimizer Deep Dive - Part 2] | Paul White | 2012-04-28 | | +| [Query Optimizer Deep Dive - Part 3] | Paul White | 2012-04-29 | | +| [Query Optimizer Deep Dive - Part 4] | Paul White | 2012-05-01 | | +| [Should You Rebuild or Reorganize Indexes on Large Tables?] | Kendra Little | 2016-10-13 | [IDX] | +| [Retrieving SQL Server Query Execution Plans] | Robert Sheldon | 2016-10-18 | | +| [Introduction to Latches in SQL Server] | Klaus Aschenbrenner | 2014-06-23 | | +| [Latch Coupling in SQL Server] | Klaus Aschenbrenner | 2016-10-24 | | +| [Partitioned Views? 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Absolutely something!] | Chris Sommer | 2017-03-01 | | +| [PowerShell Getting More From Generic Error Messages] | Shane O'Neill | 2017-03-02 | [PS] | +| [#BackToBasics : Common Table Expressions (CTEs)] | Aaron Bertrand | 2016-01-06 | | +| [SQL VNext sp_configure on Windows and Linux with dbatools] | Rob Sewell | 2017-03-02 | [PS] | +| [Adding a T-SQL Job Step to a SQL Agent Job with PowerShell] | Rob Sewell | 2017-02-20 | [PS],[J] | +| [Setting up Database Mail to use my Gmail account] | Mat Hayward | 2017-03-01 | [DM] | +| [Using DBCC CLONEDATABASE and Query Store for Testing] | Erin Stellato | 2017-02-22 | [DBCC],[QS] | +| [Getting Started with Natural Earth — A SQL Server Shapefile Alternative (Geospatial Resource)] | Jeff Pries | 2017-02-17 | [V] | +| [SQL Server Temporal Tables: How-To Recipes] | Alex Grinberg | 2017-02-10 | [DEV] | +| [The Migration Checklist] | Steve Jones | 2017-03-08 | [MG] | +| [Upgrading to SQL Server 2014: A Dozen Things to Check] | Steve Jones | 2014-06-03 | [MG] | +| [Introducing the Set-based Loop] | Luis Cazares | 2015-07-27 | [DEV] | +| [Representing Hierarchical Data for Mere Mortals] | Phil Factor | 2016-10-06 | [DEV] | +| [KPIs For DBAs to Show Their CIOs] | Thomas Larock | 2017-03-08 | [DBA] | +| [How To Forecast Database Disk Capacity If You Don’t Have A Monitoring Tool] | Edwin M Sarmiento | 2015-07-31 | [DBA] | +| [Statistical Sampling for Verifying Database Backups] | Thomas Larock | 2010-05-13 | [DBA],[B] | +| [Using dbatools for automated restore and CHECKDB] | Anthony Nocentino | 2017-03-04 | [DBA],[PS] | +| [Bad Habits Revival] | Aaron Bertrand | 2017-01-26 | [DBA] | +| [Deploying Multiple SSIS Projects via PowerShell] | Nat Sundar | 2017-02-27 | [SSIS,][PS] | +| [Determining the Cost Threshold for Parallelism] | Grant Fritchey | 2017-02-28 | [DBA] | +| [Identifying a row’s physical location] | Wayne Sheffield | 2017-03-08 | [DBA] | +| [Split a file group into multiple data files] | Trayce Jordan | 2017-03-03 | 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Residuals] | Paul White | 2011-07-18 | [DEV] | +| [Implicit Conversions that cause Index Scans] | Jonathan Kehayias | 2011-04-11 | [DEV] | +| [When Is It Appropriate To Store JSON in SQL Server?] | Bert Wagner | 2017-03-14 | [DEV] | +| [The Performance Penalty of Bookmark Lookups in SQL Server] | Klaus Aschenbrenner | 2017-03-17 | [IDX] | +| [Why You Should Change the Cost Threshold for Parallelism] | Grant Fritchey | 2017-03-13 | [DBA] | +| [Why Update Statistics can cause an IO storm] | Kendra Little | 2014-01-29 | [DBA] | +| [SQLskills SQL101 Temporary table misuse] | Paul White | 2017-03-13 | [DEV] | +| [SQL Server sp_execute_external_script Stored Procedure Examples] | Vitor Montalvao | 2017-03-10 | [R] | +| [Transparent Data Encryption and Replication] | Drew Furgiuele | 2017-03-15 | [DBA] | +| [SQL Server Installation Checklist] | Jonathan Kehayias | 2010-03-22 | [DBA] | +| [Indexed Views And Data Modifications] | Erik Darling | 2017-03-16 | [DEV] | +| [Deployment Automation for SQL Server Integration Services (SSIS)] | Nat Sundar | 2017-01-12 | [DEV] | +| [Why Developers Should Consider Microsoft SQL Server] | Brent Ozar | 2017-03-22 | [DEV] | +| [SQLskills SQL101: Indexes on Foreign Keys] | Kimberly Tripp | 2017-03-21 | [DEV] | +| [SQLskills SQL101: Updating SQL Server Statistics Part I – Automatic Updates] | Erin Stellato | 2017-03-23 | [DBA] | +| [Processing Loops in SQL Server] | CHill60 | 2017-03-23 | [DEV] | +| [The Mysterious Case of the Missing Default Value] | Raul Gonzalez | 2017-03-24 | [DEV] | +| [Plan Caching] | Klaus Aschenbrenner | 2017-03-20 | [DEV] | +| [sp_executesql Is Not Faster Than an Ad Hoc Query] | Grant Fritchey | 2016-11-07 | [DEV] | +| [Backing up SQL Server on Linux using Ola Hallengrens Maintenance Solution] | Rob Sewell | 2017-03-22 | [B] | +| [Delayed Durability in SQL Server 2014 Paul Randal] | Paul Randal | 2014-11-20 | [DBA] | +| [Why Is This Query Sometimes Fast and Sometimes Slow] | Brent Ozar | 2016-11-16 | [DEV] | +| 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| +| [Calling Http endpoints in T-SQL using CURL extension] | Jovan Popovic | 2018-04-17 | [CLR] | +| [Why Table Join Orders In Relational Databases] | Bert Wagner | 2018-04-16 | [DEV] | +| [Finding overlapping ranges of data] | Louis Davidson | 2018-04-18 | [DEV] | +| [Avoid use of the MONEY and SMALLMONEY datatypes] | Phil Factor | 2018-04-18 | [DEV] | +| [Provisioning SQL Server Instances with Docker] | Laerte Junior | 2018-04-18 | [DBA] | +| [Understanding the graphical representation of the SQL Server Deadlock Graph] | Minette Steynberg | 2016-08-16 | [DBA],[DEV] | +| [Digitally Signing a Stored Procedure To Allow It To Run With Elevated Permissions] | SQL Undercover | 2018-05-02 | [DBA],[DEV] | +| [NOLOCK and Top Optimization] | Dmitry Piliugin | 2018-04-12 | [DEV] | +| [Operator Precedence versus the Confusing Constraint Translation] | Louis Davidson | 2018-04-30 | [DEV] | +| [Interval Queries in SQL Server] | Itzik Ben-Gan | 2013-06-13 | [DEV] | +| [Query Trace Column Values] | Dmitry Piliugin | 2018-04-23 | [XE] | +| [Concurrency Week: How to Delete Just Some Rows from a Really Big Table] | Brent Ozar | 2018-04-27 | [DEV] | +| [Break large delete operations into chunks] | Aaron Bertrand | 2013-03-13 | [DBA],[DEV] | +| [How to perform a page level restore in SQL Server] | Prashanth Jayaram | 2018-08-18 | [DBA],[DEV] | +| [Grouping dates without blocking operators] | Daniel Hutmacher | 2018-05-14 | [DEV] | +| [What’s CHECKDB doing in my database restore?] | Mike Fal | 2018-04-10 | [DBA] | +| [How To Hide An Instance Of SQL Server] | Thomas Larock | 2018-04-10 | [DBA] | +| [Troubleshooting Parameter Sniffing Issues the Right Way: Part 1] | Tara Kizer | 2018-03-06 | [DEV] | +| [Troubleshooting Parameter Sniffing Issues the Right Way: Part 2] | Tara Kizer | 2018-03-07 | [DEV] | +| [Troubleshooting Parameter Sniffing Issues the Right Way: Part 3] | Tara Kizer | 2018-03-06 | [DEV] | +| [When to use the SELECT…INTO statement] | Phil Factor | 2018-03-19 | [DEV] | +| [Temp Tables In SSIS] | Tim Mitchel | 2018-05-29 | [SSIS] | +| [Changing the Collation of the Instance, the Databases, and All Columns in All User Databases] | Solomon Rutzky | 2018-06-11 | [DBA] | +| [10 Cool SQL Optimisations That do not Depend on the Cost Model] | Jooq | 2017-09-28 | [DBA],[DEV] | +| [Scheduling powershell tasks with sql agent] | Chrissy Lemaire | 2017-09-26 | [J],[PS] | +| [Three ways to track logins using dbatools] | Chrissy Lemaire | 2018-04-10 | [PS] | +| [Impact of Fragmentation on Execution Plans] | Jonathan Kehayias | 2017-12-18 | [DEV] | +| [How to “debug” a Linked Server from SQL Server to an Oracle Database instance] | Jefferson Elias | 2018-06-11 | [DEV] | +| [How to implement error handling in SQL Server] | Bojan Petrovic | 2018-06-15 | [DEV] | +| [SQL Server Closure Tables] | Phil Factor | 2018-04-10 | [DEV] | +| [Deadlock victim choice in SQL Server - an exception?] | Josh the Coder | 2018-05-10 | [DBA],[DEV] | +| [Azure and Windows PowerShell: The Basics] | Nicolas Prigent | 2017-12-29 | [AZ],[PS] | +| [Azure and Windows PowerShell: Getting Information] | Nicolas Prigent | 2018-06-26 | [AZ],[PS] | +| [Be our guest, be our guest, put our database to the test] | Kenneth Fisher | 2018-06-25 | [DBA] | +| [Finding code smells using SQL Prompt: the SET NOCOUNT problem (PE008 and PE009)] | Phil Factor | 2018-01-04 | [DEV] | +| [DATABASES 101 guide for the non-technical professional] | Thomas LaRock | 2018-07-05 | [DBA],[DEV] | +| [Understanding your Azure EA Billing Data and Building a Centralized Data Storage Solution] | Feodor Georgiev | 2018-07-17 | [AZ] | +| [READ COMMITTED SNAPSHOT ISOLATION and High version_ghost_record_count] | Uwe Ricken | 2018-03-06 | [DBA],[DEV] | +| [In-Memory OLTP Indexes – Part 1: Recommendations.] | Kunal Karoth | 2017-11-02 | [IDX] | +| [In-Memory OLTP Indexes – Part 2: Performance Troubleshooting Guide.] | Kunal Karoth | 2017-11-14 | [IDX] | +| [Optimization Thresholds – Grouping and Aggregating Data, Part 1] | Itzik Ben-Gan | 2018-04-10 | [DEV] | +| [Optimization Thresholds – Grouping and Aggregating Data, Part 2] | Itzik Ben-Gan | 2018-05-09 | [DEV] | +| [Optimization Thresholds – Grouping and Aggregating Data, Part 3] | Itzik Ben-Gan | 2018-06-13 | [DEV] | +| [Optimization Thresholds – Grouping and Aggregating Data, Part 4] | Itzik Ben-Gan | 2018-07-11 | [DEV] | +| [Optimization Thresholds – Grouping and Aggregating Data, Part 5] | Itzik Ben-Gan | 2018-08-08 | [DEV] | +| [When DBCC OpenTran doesn’t list all open transactions] | Mohamed | 2013-02-17 | [DBA] | +| [How I spot not-yet-documented features in SQL Server CTPs] | Aaron Bertrand | 2015-12-02 | [DBA] | +| [More ways to discover changes in new versions of SQL Server] | Aaron Bertrand | 2016-03-30 | [DBA] | +| [Tail-Log Backup and Restore in SQL Server] | Prashanth Jayaram | 2018-05-31 | [DBA] | +| [Database Filegroup(s) and Piecemeal restores in SQL Server] | Prashanth Jayaram | 2018-06-22 | [DBA] | +| [Updating Statistics with Ola Hallengren’s Script] | Erin Stellato | 2018-06-22 | [DBA] | +| [Interview questions on SQL Server database backups, restores and recovery – Part I] | Prashanth Jayaram | 2018-07-25 | [DBA] | +| [Interview questions on SQL Server database backups, restores and recovery – Part II] | Prashanth Jayaram | 2018-07-25 | [DBA] | +| [Interview questions on SQL Server database backups, restores and recovery – Part III] | Prashanth Jayaram | 2018-07-25 | [DBA] | +| [Can Rowstore Compression Beat Columnstore Compression?] | Joe Obbish | 2018-06-28 | [DBA],[DEV] | +| [Inside the Storage Engine: Anatomy of a record] | Paul Randal | 2007-09-30 | [DBA],[DEV] | +| [Inside the Storage Engine: Using DBCC PAGE and DBCC IND to find out if page splits ever roll back] | Paul Randal | 2007-10-01 | [DBA],[DEV] | +| [Inside the Storage Engine: Anatomy of a page] | Paul Randal | 2007-10-03 | [DBA],[DEV] | +| [Inside the Storage Engine: Anatomy of an extent] | Paul Randal | 2007-10-03 | [DBA],[DEV] | +| [Inside the Storage Engine: IAM pages, IAM chains, and allocation units] | Paul Randal | 2007-10-04 | [DBA],[DEV] | +| [Inside The Storage Engine: GAM, SGAM, PFS and other allocation maps] | Paul Randal | 2008-03-14 | [DBA],[DEV] | +| [Disaster recovery 101: fixing a broken boot page] | Paul Randal | 2015-06-23 | [DBA],[DEV] | +| [How to download a sqlservr.pdb symbol file] | Paul Randal | 2011-04-13 | [DBA],[DEV] | +| [A cause of high-duration ASYNC_IO_COMPLETION waits] | Paul Randal | 2014-03-19 | [DBA],[DEV] | +| [How to solve the Identity Crisis in SQL Server] | Ed Pollack | 2017-11-14 | [DBA],[DEV] | +| [Azure SQL Database Performance and Service Tiers Explained] | Glenn Berry | 2018-08-01 | [AZ] | +| [What To Do When Wait Stats Don’t Help] | Joe Obbish | 2018-07-20 | [DEV] | +| [SQL Server Brute Force Attack Detection: Part 1] | Ryan G Conrad | 2018-03-26 | [DBA] | +| [SQL Server Brute Force Attack Detection: Part 2] | Ryan G Conrad | 2018-03-26 | [DBA] | +| [SQL Server Brute Force Attack Detection: Part 3] | Ryan G Conrad | 2018-03-26 | [DBA] | +| [SQLCLR vs SQL Server 2017, Part 8: Is SQLCLR Deprecated in Favor of Python or R (sp_execute_external_script)?] | Solomon Rutzky | 2018-08-09 | [DBA],[DEV] | +| [Sql Server Agent For Azure Sql Database, Azure Elastic Database Pools & Azure Managed Instance] | ? | 2018-07-20 | [AZ] | +| [Storage performance best practices and considerations for Azure SQL DB Managed Instance (General Purpose)] | Dimitri Furman | 2018-07-20 | [AZ] | +| [T-SQL Tuesday #017: APPLY: It Slices! It Dices! It Does It All!] | Brad Schulz | 2011-04-12 | [DEV] | +| [SQL Server Encryption, What’s The Key Hierarchy All About?] | David Fowler | 2018-08-12 | [DBA],[DEV] | +| [Overview of the SQLCMD utility in SQL Server] | Prashanth Jayaram | 2018-08-13 | [DBA],[DEV] | +| [The BCP (Bulk Copy Program) command in action] | Prashanth Jayaram | 2018-08-13 | [DBA],[DEV] | +| [Measuring Query Execution Time] | Grant Fritchey | 2018-08-13 | [DBA],[DEV] | +| [How to Check Performance on a New SQL Server] | Brent Ozar | 2018-08-03 | [DBA],[DEV] | +| [Questions About Kerberos and SQL Server That You Were Too Shy to Ask] | Kathi Kellenberger | 2018-08-21 | [DBA] | +| [SQL Server Execution Plans overview] | Ahmad Yaseen | 2018-07-04 | [DBA],[DEV] | +| [SQL Server Execution Plans types] | Ahmad Yaseen | 2018-07-23 | [DBA],[DEV] | +| [How to Analyze SQL Execution Plan Graphical Components] | Ahmad Yaseen | 2018-09-07 | [DBA],[DEV] | +| [Query optimization techniques in SQL Server: the basics] | Ed Pollack | 2018-05-30 | [DBA],[DEV] | +| [Query optimization techniques in SQL Server: tips and tricks] | Ed Pollack | 2018-06-19 | [DBA],[DEV] | +| [Query optimization techniques in SQL Server: Database Design and Architecture] | Ed Pollack | 2018-07-13 | [DBA],[DEV] | +| [SQL Query Optimization Techniques in SQL Server: Parameter Sniffing] | Ed Pollack | 2018-09-04 | [DBA],[DEV] | +| [Similarities and Differences among RANK, DENSE_RANK and ROW_NUMBER Functions] | Ben Richardson | 2018-08-20 | [DBA],[DEV] | +| [Temporal Tables Under The Covers] | Randolph West | 2015-11-17 | [DBA],[DEV] | +| [Faking Temporal Tables with Triggers] | Bert Wagner | 2018-09-11 | [DBA],[DEV] | +| [SQL queries to manage hierarchical or parent-child relational rows in SQL Server] | Dipon Roy | 2014-09-16 | [DBA],[DEV] | +| [Choosing Between Table Variables and Temporary Tables] | Phil Factor | 2018-05-11 | [DBA],[DEV] | +| [What's New in the First Public CTP of SQL Server 2019] | Aaron Bertrand | 2018-09-24 | [DBA],[DEV] | +| [SQL Server support for TLS 1.2 – Read This First!] | Aaron Bertrand | 2016-03-03 | [DBA],[DEV] | +| [Misconceptions in SQL Server: A Trio of table variables] | Gail Shaw | 2010-10-12 | [DBA],[DEV] | +| [Using the Same Column Twice in a SQL UPDATE Statement] | SQL Theater | 2018-09-13 | [DBA],[DEV] | +| [How to perform a performance test against a SQL Server instance] | Jefferson Elias | 2018-09-14 | [DBA],[DEV] | +| [The Black Art Of Spatial Index Tuning In SQL Server] | Todd Jackson | 2011-04-26 | [DEV] | +| [Patching SQL Server on Windows notes from the field] | Kevin Chant | 2019-01-10 | [DBA] | +| [Availability Group Readable Secondaries – Just Say No] | Jonathan Kehayias | 2019-01-10 | [DBA] | +| [Finding the Slowest Query in a Stored Procedure] | Erin Stellato | 2018-12-13 | [DBA],[DEV] | +| [A Monumental Migration to SQL Server 2016 – Part 1] | Andy Levy | 2019-01-07 | [DBA] | +| [A Monumental Migration to SQL Server 2016 – Part 2] | Andy Levy | 2019-01-09 | [DBA] | +| [A unique review of SQL Server index types] | Kevin Chant | 2019-10-18 | [DBA],[DEV] | +| [Don’t Just Rely on Query Execution Stats for T-SQL Execution] | Kevin Chant | 2018-09-18 | [DBA],[DEV] | +| [Posting SQL Server notifications to Slack] | Alessandro Alpi | 2018-09-19 | [DBA],[DEV] | +| [How to create DACPAC file?] | Kamil Nowinski | 2018-10-31 | [DBA],[DEV] | +| [Find the Next Non-NULL Row in a Series With SQL] | JOOq | 2018-09-03 | [DEV] | +| [Calculate Percentiles to Learn About Data Set Skew in SQL] | JOOq | 2019-01-22 | [DEV] | +| [Comparing multiple rows insert vs single row insert with three data load methods] | Phil Factor | 2013-02-21 | [DBA],[DEV] | +| [The Cause of Every Deadlock in SQL Server] | Thomas Larock | 2018-09-19 | [DBA],[DEV] | +| [Deadlock Troubleshooting, Part 1] | Bart Dunkan | 2006-09-08 | [DBA],[DEV] | +| [Deadlock Troubleshooting, Part 2] | Bart Dunkan | 2006-09-12 | [DBA],[DEV] | +| [Deadlock Troubleshooting, Part 3] | Bart Dunkan | 2006-09-08 | [DBA],[DEV] | +| [The Good, the Bad and the Ugly of Table Variable Deferred Compilation – Part 1] | Milosra Divojevic | 2018-10-04 | [DBA],[DEV] | +| [The Good, the Bad and the Ugly of Table Variable Deferred Compilation – Part 2] | Milosra Divojevic | 2018-10-05 | [DBA],[DEV] | +| [The Good, the Bad and the Ugly of Table Variable Deferred Compilation – Part 3] | Milosra Divojevic | 2018-10-08 | [DBA],[DEV] | +| [Creating a SQL Server 2019 Demo Environment in a Docker Container] | Cathrine Wilhelmsen | 2018-12-02 | [DBA],[DEV] | +| [Overview of Data Compression in SQL Server] | Prashanth Jayaram | 2018-12-06 | [DBA],[DEV] | +| [SQL Server Hash Match Operator] | Hugo Kornelis | 2018-06-01 | [DBA],[DEV] | +| [How to use Microsoft Assessment and Planning (MAP) Toolkit for SQL Server] | Musab Umair | 2017-03-31 | [DBA] | +| [Improve the Performance of Your Azure SQL Database (and Save Money!) with Automatic Tuning] | Monica Rathbun | 2019-01-30 | [AZ],[DBA] | +| [The Importance of Database Compatibility Level in SQL Server] | Glenn Berry | 2019-01-14 | [DBA] | +| [Azure Managed vs Unmanaged disks : The choice] | Samir Farhat | 2017-05-31 | [AZ] | +| [Storage options for SQL Server database files in Azure] | James Serra | 2019-01-29 | [AZ] | +| [The Performance of Window Aggregates Revisited with SQL Server 2019] | Kathi Kellenberger | 2019-02-11 | [DEV] | +| [Super Scaling Singleton Inserts] | Chris Adkin | 2015-02-19 | [DEV] | +| [Preparation for SQL Server Installation] | Michal Sadowski | 2018-12-12 | [DBA] | +| [Executing xp_cmdshell with Non SysAdmin Account] | Lucas Kartawidjaja | 2019-01-04 | [DBA] | +| [Generating SQL using Biml (T-SQL Tuesday #110)] | Cathrine Wilhelmsen | 2019-01-08 | [DEV] | +| [Avoiding SQL Server Upgrade Performance Issues] | Glenn Berry | 2019-02-05 | [DBA] | [SQL Server Index Design Guide]:https://technet.microsoft.com/en-us/library/jj835095.aspx [SQL Server 2012 Security Best Practices - Microsoft]:http://download.microsoft.com/download/8/f/a/8fabacd7-803e-40fc-adf8-355e7d218f4c/sql_server_2012_security_best_practice_whitepaper_apr2012.docx [Help, my database is corrupt. Now what?]:http://www.sqlservercentral.com/articles/Corruption/65804/ +[What to Do When DBCC CHECKDB Reports Corruption]:https://www.brentozar.com/archive/2016/05/dbcc-checkdb-reports-corruption/ +[Understanding how SQL Server executes a query]:http://rusanu.com/2013/08/01/understanding-how-sql-server-executes-a-query/ +[Troubleshooting SQL Server CPU Performance Issues]:http://sqlperformance.com/2013/05/io-subsystem/cpu-troubleshooting [Knee-Jerk Performance Tuning : Incorrect Use of Temporary Tables]:http://sqlperformance.com/2016/04/t-sql-queries/knee-jerk-temporary-tables -[The Curse and Blessings of Dynamic SQL]:http://sommarskog.se/dyn-search.html +[High Performance T-SQL using Code Patterns]:https://dwaincsql.com/2015/05/27/high-performance-t-sql-using-code-patterns/ +[SQL Server Database Corruption Repair]:http://stevestedman.com/2015/08/sql-server-database-corruption-repair/ +[Basic SQL Server Performance Troubleshooting For Developers]:https://www.simple-talk.com/sql/performance/basic-sql-server-performance-troubleshooting-for-developers/ +[The Curse and Blessings of Dynamic SQL]:http://sommarskog.se/dynamic_sql.html [Dynamic Search Conditions in T-SQL]:http://www.sommarskog.se/dynamic_sql.html [Slow in the Application, Fast in SSMS]:http://www.sommarskog.se/query-plan-mysteries.html [How to share data between stored procedures]:http://www.sommarskog.se/share_data.html [Arrays and Lists in SQL Server 2008]:http://www.sommarskog.se/arrays-in-sql-2008.html [Giving Permissions through Stored Procedures]:http://www.sommarskog.se/grantperm.html [Error and Transaction Handling in SQL Server]:http://www.sommarskog.se/error_handling/Part1.html +[Using the Bulk-Load Tools in SQL Server]:http://www.sommarskog.se/bulkload.html +[Using Table-Valued Parameters in SQL Server and .NET]:http://www.sommarskog.se/arrays-in-sql-2008.html [SQL Server Columnstore Articles]:http://www.nikoport.com/columnstore/ [Documentation: It Does not Suck!]:https://www.brentozar.com/archive/2013/01/documentation-it-doesnt-suck/ [The Data Loading Performance Guide]:https://msdn.microsoft.com/en-us/library/dd425070%28v=sql.100%29.aspx @@ -49,3 +681,599 @@ [Overcoming Variable Limitations in SQLCmd Mode]:http://www.sqlsoldier.com/wp/sqlserver/tsqltuesday65overcomingvariablelimitationsinsqlcmdmode [Contents of a Run Book]:https://technet.microsoft.com/en-us/library/cc917702.aspx [Compressed and Encrypted Backups on the Cheap]:https://bornsql.ca/2016/04/compressed-encrypted-backups-cheap/ +[Curing Data-Obesity in OLTP Databases]:https://www.simple-talk.com/sql/database-administration/curing-data-obesity-in-oltp-databases/ +[Understanding GRANT, DENY, and REVOKE in SQL Server]:https://www.mssqltips.com/sqlservertip/2894/understanding-grant-deny-and-revoke-in-sql-server/ +[Monitor SQL Server Transaction Log File Free Space]:https://www.mssqltips.com/sqlservertip/3617/monitor-sql-server-transaction-log-file-free-space/ +[Dynamically Query a 100 Million Row Table-Efficiently]:http://www.sqlservercentral.com/articles/T-SQL/121906/ +[Understanding and Using Parallelism in SQL Server]:https://www.simple-talk.com/sql/learn-sql-server/understanding-and-using-parallelism-in-sql-server/ +[Diagnosing and Resolving Latch Contention on SQL Server]:https://www.microsoft.com/en-us/download/details.aspx?id=26665 +[Parallel Execution Plans – Branches and Threads]:http://sqlperformance.com/2013/10/sql-plan/parallel-plans-branches-threads +[Nasty Fast PERCENT_RANK]:http://www.sqlservercentral.com/articles/PERCENT_RANK/141532/ +[Looking at VIEWs, Close Up]:https://www.simple-talk.com/sql/t-sql-programming/looking-at-views,-close-up/ +[SQL Server 2016: It Just Runs Faster]:http://thomaslarock.com/2016/06/sql-server-2016-just-runs-faster/ +[TSQL JOIN Types Poster]:http://stevestedman.com/2015/05/tsql-join-types-poster-version-4-1/ +[It is Hard To Destroy Data]:http://michaeljswart.com/2015/05/its-hard-to-destroy-data/ +[How to transfer logins and passwords between instances of SQL Server]:https://support.microsoft.com/en-us/kb/918992 +[Finding File Growths with Extended Events]:http://nebraskasql.blogspot.ru/2016/06/finding-file-growths-with-extended.html +[Questions You Should Ask About the Databases You Manage]:https://www.brentozar.com/archive/2016/06/questions-ask-databases-manage/ +[Clustered Indexes in SQL Server]:http://www.sqlhammer.com/clustered-indexes-sql-server/ +[Triage Quiz: Is Your SQL Server Safe?]:https://www.brentozar.com/archive/2016/06/triage-quiz-sql-server-safe/ +[Why Not Just Create Statistics?]:https://www.brentozar.com/archive/2016/07/not-just-create-statistics/ +[Understanding the SQL Server NOLOCK hint]:https://www.mssqltips.com/sqlservertip/2470/understanding-the-sql-server-nolock-hint/ +[Recover access to a SQL Server instance]:https://www.mssqltips.com/sqlservertip/2682/recover-access-to-a-sql-server-instance/ +[SQL Server 2016 Upgrade Planning]:http://sqlmag.com/sql-server/sql-server-2016-upgrade-planning-0 +[Graphs and Graph Algorithms in T-SQL]:http://www.hansolav.net/sql/graphs.html +[Episode 4: SQL Server R Services makes you a smarter T-SQL Developer]:https://blogs.msdn.microsoft.com/sqlcat/2016/07/12/sqlsweet16-episode-4-sql-server-r-services-makes-you-a-smarter-t-sql-developer/ +[How to Set Max Degree of Parallelism in SQL Server]:http://www.littlekendra.com/2016/07/14/max-degree-of-parallelism-cost-threshold-for-parallelism/ +[Undocumented Query Plans: Equality Comparisons]:http://sqlblog.com/blogs/paul_white/archive/2011/06/22/undocumented-query-plans-equality-comparisons.aspx +[Simplified Order Of Operations]:http://michaeljswart.com/2016/07/simplified-order-of-operations/ +[SQL Server Statistics Basics]:https://www.simple-talk.com/sql/performance/sql-server-statistics-basics/ +[Learn to Use sp_Blitz, sp_BlitzCache, sp_BlitzFirst, and sp_BlitzIndex with These Tutorial Videos]:https://www.brentozar.com/archive/2016/09/learn-use-sp_blitz-sp_blitzcache-sp_blitzfirst-sp_blitzindex-tutorial-videos/ +[Where is a record really located?]:https://blogs.msdn.microsoft.com/sql_pfe_blog/2016/09/15/where-is-a-record-really-located/ +[Instant File Initialization (IFI)]:http://stevestedman.com/2016/09/instant-file-initialization-ifi/ +[How to Query the StackExchange Databases]:https://www.brentozar.com/archive/2014/01/how-to-query-the-stackexchange-databases/ +[How to Troubleshoot Performance in SQL Server (Dear SQL DBA)]:http://www.littlekendra.com/2016/06/02/dear-sql-dba-lost-in-performance-troubleshooting/ +[How to Log Activity Using sp_whoisactive in a Loop]:https://www.brentozar.com/responder/log-sp_whoisactive-to-a-table/ +[Logging Activity Using sp_WhoIsActive – Take 2]:https://www.brentozar.com/archive/2016/07/logging-activity-using-sp_whoisactive-take-2/ +[How To Fix Forwarded Records]:https://www.brentozar.com/archive/2016/07/fix-forwarded-records/ +[Should I Automate my Windows Updates for SQL Server?]:http://www.littlekendra.com/2016/07/28/should-i-automate-my-windows-updates-for-sql-server-dear-sql-dba-episode-10/ +[Finding the Right Path]:http://jasonbrimhall.info/2016/08/24/finding-the-right-path/ +[#BackToBasics : An Updated "Kitchen Sink" Example]:https://blogs.sqlsentry.com/aaronbertrand/backtobasics-updated-kitchen-sink-example/ +[Locking and Blocking in SQL Server]:https://www.brentozar.com/sql/locking-and-blocking-in-sql-server/ +[Nested Loops Prefetching]:http://sqlblog.com/blogs/paul_white/archive/2013/08/31/sql-server-internals-nested-loops-prefetching.aspx +[Performance tuning backup and restore operations]:http://www.sqlhammer.com/performance-tuning-backup-restore-operations/ +[Execution Plan Analysis: The Mystery Work Table]:http://sqlblog.com/blogs/paul_white/archive/2013/03/08/execution-plan-analysis-the-mystery-work-table.aspx +[How to move data between File Groups in SQL Server]:http://www.sqlpassion.at/archive/2016/09/26/how-to-move-data-between-file-groups-in-sql-server/ +[Optimizing Your Query Plans with the SQL Server 2014 Cardinality Estimator]:https://msdn.microsoft.com/en-us/library/dn673537.aspx +[Parallelism in SQL Server Query Tuning]:http://sqlmag.com/sql-server/parallelism-sql-server-query-tuning +[What You Need to Know about the Batch Mode Window Aggregate Operator in SQL Server 2016: Part 1]:http://sqlmag.com/sql-server/what-you-need-know-about-batch-mode-window-aggregate-operator-sql-server-2016-part-1 +[What To Do If sp_BlitzFirst Warns About High Compilations]:https://www.brentozar.com/archive/2016/09/what-to-do-if-sp_blitzfirst-warns-about-high-compilations/ +[Questions You Should Be Asking About Your Backups]:https://www.brentozar.com/archive/2016/10/questions-asking-backups/ +[Evolutionary Database Design]:http://martinfowler.com/articles/evodb.html +[Implementing a custom sort]:https://sqlperformance.com/2016/10/sql-plan/implementing-custom-sort +[Deletes that Split Pages and Forwarded Ghosts]:http://sqlblog.com/blogs/paul_white/archive/2012/08/31/deletes-that-split-pages-and-forwarded-ghosts.aspx +[Query Optimizer Deep Dive - Part 1]:http://sqlblog.com/blogs/paul_white/archive/2012/04/28/query-optimizer-deep-dive-part-1.aspx +[Query Optimizer Deep Dive - Part 2]:http://sqlblog.com/blogs/paul_white/archive/2012/04/28/query-optimizer-deep-dive-part-2.aspx +[Query Optimizer Deep Dive - Part 3]:http://sqlblog.com/blogs/paul_white/archive/2012/04/29/query-optimizer-deep-dive-part-3.aspx +[Query Optimizer Deep Dive - Part 4]:http://sqlblog.com/blogs/paul_white/archive/2012/05/01/query-optimizer-deep-dive-part-4.aspx +[Should You Rebuild or Reorganize Indexes on Large Tables?]:https://www.littlekendra.com/2016/10/13/should-you-rebuild-or-reorganize-indexes-on-large-tables-dear-sql-dba-episode-19/ +[Retrieving SQL Server Query Execution Plans]:https://www.simple-talk.com/sql/database-administration/retrieving-sql-server-query-execution-plans/ +[Introduction to Latches in SQL Server]:http://www.sqlpassion.at/archive/2014/06/23/introduction-to-latches-in-sql-server/ +[Latch Coupling in SQL Server]:https://www.sqlpassion.at/archive/2016/10/24/latch-coupling-in-sql-server/ +[Partitioned Views? A How-To Guide]:https://www.brentozar.com/archive/2016/09/partitioned-views-guide/ +[How to Choose Between RCSI and Snapshot Isolation Levels]:https://www.littlekendra.com/2016/02/18/how-to-choose-rcsi-snapshot-isolation-levels/ +[TroubleShooting SQL Server Memory Consumption]:http://www.sql-server-performance.com/2016/trouble-shooting-sql-server-ra-memory-consumption/ +[Time Series Algorithms in SQL Server]:http://www.sql-server-performance.com/2015/time-series-algorithms-sql-server/ +[Heap Tables in SQL Server]:http://www.sqlpassion.at/archive/2015/10/19/heap-tables-in-sql-server/ +[Internals of the Seven SQL Server Sorts – Part 1]:https://sqlperformance.com/2015/04/sql-plan/internals-of-the-seven-sql-server-sorts-part-1 +[Internals of the Seven SQL Server Sorts – Part 2]:https://sqlperformance.com/2015/05/sql-plan/internals-of-the-seven-sql-server-sorts-part-2 +[The 9 Letters That Get DBAs Fired]:https://www.brentozar.com/archive/2011/12/letters-that-get-dbas-fired/ +[Restarting SQL Server – always a good idea?]:https://www.sqlpassion.at/archive/2016/08/08/restarting-sql-server-always-a-good-idea/ +[Don’t believe everything you read: Reconfigure flushes the plan cache]:https://mattsql.wordpress.com/2012/06/25/dont-believe-everything-you-read-reconfigure-flushes-the-plan-cache/ +[How-to load data fast into SQL Server 2016]:http://henkvandervalk.com/how-to-load-data-fast-into-sql-server-2016 +[Database Design Matters, RTO and Filegroups]:http://www.sqldoubleg.com/2016/10/28/database-design-matters-rto-and-filegroups/ +[Automate Alerting for SQL Server Suspect Database Pages]:https://www.mssqltips.com/sqlservertip/4166/automate-alerting-for-sql-server-suspect-database-pages/ +[Successful Anti-Patterns, Storage Requirements]:http://www.sqldoubleg.com/2016/10/19/successful-anti-patterns-storage-requirements/ +[SQL Server table columns under the hood]:http://rusanu.com/2011/10/20/sql-server-table-columns-under-the-hood/ +[How to analyse SQL Server performance]:http://rusanu.com/2014/02/24/how-to-analyse-sql-server-performance/ +[To BLOB or Not To BLOB: Large Object Storage in a Database or a Filesystem?]:https://www.microsoft.com/en-us/research/publication/to-blob-or-not-to-blob-large-object-storage-in-a-database-or-a-filesystem/ +[Asynchronous procedure execution]:http://rusanu.com/2009/08/05/asynchronous-procedure-execution/ +[What is the CXPACKET Wait Type, and How Do You Reduce It?]:https://www.brentozar.com/archive/2013/08/what-is-the-cxpacket-wait-type-and-how-do-you-reduce-it/ +[New indexes, hypothetically]:https://sqlstudies.com/2016/11/02/new-indexes-hypothetically/ +[Indexing Wide Keys in SQL Server]:https://www.brentozar.com/archive/2013/05/indexing-wide-keys-in-sql-server/ +[The Anatomy and (In)Security of Microsoft SQL Server Transparent Data Encryption (TDE), or How to Break TDE]:http://simonmcauliffe.com/technology/tde/ +[Correctly adding data files to tempdb]:http://www.sqlskills.com/blogs/paul/correctly-adding-data-files-tempdb/ +[Why You Should Test Your Queries Against Bigger Data]:https://www.brentozar.com/archive/2016/11/why-you-should-test-your-queries-against-bigger-data/ +[Tally OH! An Improved SQL 8K “CSV Splitter” Function]:http://www.sqlservercentral.com/articles/Tally+Table/72993/ +[Set Statistics… Profile?]:https://www.brentozar.com/archive/2016/10/set-statistics-profile/ +[Hierarchies on Steroids #1: Convert an Adjacency List to Nested Sets]:http://www.sqlservercentral.com/articles/Hierarchy/94040/ +[Optimizing T-SQL queries that change data]:http://sqlblog.com/blogs/paul_white/archive/2013/01/26/optimizing-t-sql-queries-that-change-data.aspx +[Measuring Query Duration: SSMS vs SQL Sentry Plan Explorer]:https://www.littlekendra.com/2016/09/27/measuring-query-duration-ssms-vs-sql-sentry-plan-explorer/ +[Inside the Statistics Histogram & Density Vector]:http://www.sqlpassion.at/archive/2014/01/28/inside-the-statistics-histogram-density-vector/ +[Misconceptions on parameter sniffing]:http://sqlblog.com/blogs/hugo_kornelis/archive/2016/11/03/misconceptions-on-parameter-sniffing.aspx +[CAST vs. CONVERT]:https://blogs.sentryone.com/aaronbertrand/backtobasics-cast-vs-convert/ +[What Every Accidental DBA Needs to Know Now: Basics of SQL Security]:http://sqlmag.com/database-security/what-every-accidental-dba-needs-know-now-basics-sql-security +[SQL Server Perfmon (Performance Monitor) Best Practices]:https://www.brentozar.com/archive/2006/12/dba-101-using-perfmon-for-sql-performance-tuning/ +[Top 5 Overlooked Index Features]:https://www.brentozar.com/archive/2016/11/top-5-overlooked-index-features/ +[A Sysadmin’s Guide to Microsoft SQL Server Memory]:https://www.brentozar.com/archive/2011/09/sysadmins-guide-microsoft-sql-server-memory/ +[Searching Strings in SQL Server is Expensive]:https://www.brentozar.com/archive/2016/10/searching-strings-sql-server-expensive/ +[Altering an INT Column to a BIGINT]:https://www.littlekendra.com/2016/08/04/altering-an-int-column-to-a-bigint-dear-sql-dba-episode-11/ +[Query tuning 101: Problems with IN ()]:http://www.sqlservercentral.com/blogs/confessions-of-a-microsoft-addict/2016/11/10/query-tuning-101-problems-with-in-/ +[Admin: Bulkadmin vs ADMINISTER BULK OPERATIONS]:http://richbrownesq-sqlserver.blogspot.ru/2012/01/admin-bulkadmin-vs-administer-bulk.html +[Can Indexes My Query Doesn’t Use Help My Query?]:https://www.brentozar.com/archive/2016/11/can-indexes-query-doesnt-use-help-query/ +[SQL Server Audit Walkthrough]:http://www.sql-server-performance.com/2016/walkthrough-sql-server-audit/ +[The SQL Server 2016 Query Store: Overview and Architecture]:https://www.simple-talk.com/sql/database-administration/the-sql-server-2016-query-store-overview-and-architecture/ +[Reading, Writing, and Creating SQL Server Extended Properties]:https://www.simple-talk.com/sql/database-delivery/reading-writing-creating-sql-server-extended-properties/ +[Questions About SQL Server Security and Access Control You Were Too Shy to Ask]:https://www.simple-talk.com/sql/database-delivery/questions-sql-server-security-access-control-shy-ask/ +[The Ten Commandments of SQL Server Monitoring]:https://www.simple-talk.com/sql/database-administration/the-ten-commandments-of-sql-server-monitoring/ +[Should I use NOT IN, OUTER APPLY, LEFT OUTER JOIN, EXCEPT, or NOT EXISTS?]:https://sqlperformance.com/2012/12/t-sql-queries/left-anti-semi-join +[Parameter Sniffing, Embedding, and the RECOMPILE Options]:https://sqlperformance.com/2013/08/t-sql-queries/parameter-sniffing-embedding-and-the-recompile-options +[Can comments hamper stored procedure performance?]:https://sqlperformance.com/2016/11/sql-performance/comments-hamper-performance +[SQL Server Temporary Table Caching]:https://www.mssqltips.com/sqlservertip/4406/sql-server-temporary-table-caching/ +[Techniques to Monitor SQL Server memory usage]:http://www.sql-server-performance.com/2016/monitor-sql-server-memory-usage/ +[Troubleshooting Query Regressions Caused By The New Cardinality Estimator]:https://sqlserverscotsman.wordpress.com/2016/11/24/troubleshooting-query-regressions-caused-by-the-new-cardinality-estimator/ +[Migrating Databases to Azure SQL Database]:https://sqlperformance.com/2016/10/sql-performance/migrating-to-azure-sql-database +[Solve Common SQL Server Restore Issues]:https://www.mssqltips.com/sqlservertip/4110/solve-common-sql-server-restore-issues/ +[Spills SQL Server Doesn’t Warn You About]:https://www.brentozar.com/archive/2016/11/spills-sql-server-doesnt-warn/ +[How often should I run DBCC CHECKDB?]:https://www.brentozar.com/archive/2016/02/how-often-should-i-run-dbcc-checkdb/ +[Why is My Query Faster the Second Time it Runs?]:https://www.littlekendra.com/2016/11/25/why-is-my-query-faster-the-second-time-it-runs-dear-sql-dba-episode-23/ +[Downgrading the SQL Server Edition of a Dev Environment]:https://www.littlekendra.com/2016/11/15/downgrading-the-sql-server-edition-of-a-dev-environment/ +[Date Math In The WHERE Clause]:https://www.brentozar.com/archive/2016/12/date-math-clause/ +[Why is This Partitioned Query Slower?]:https://www.brentozar.com/archive/2015/09/why-is-this-partitioned-query-slower/ +[A Beginner’s Guide to the True Order of SQL Operations]:https://blog.jooq.org/2016/12/09/a-beginners-guide-to-the-true-order-of-sql-operations/ +[Logical Query Processing: What It Is And What It Means to You]:http://sqlmag.com/sql-server/logical-query-processing-what-it-and-what-it-means-you +[Forcing a Parallel Query Execution Plan]:http://sqlblog.com/blogs/paul_white/archive/2011/12/23/forcing-a-parallel-query-execution-plan.aspx +[Join Containment Assumption and CE Model Variation]:http://www.queryprocessor.com/ce_join_base_containment_assumption/ +[Table Variable Tip]:http://sqlmag.com/t-sql/table-variable-tip +[Heap tables in SQL Server]:http://www.sqlhammer.com/heaps-in-microsoft-sql-server/ +[The ‘B’ in B-Tree – Indexing in SQL Server]:http://www.sqlhammer.com/the-b-in-b-tree-indexing-sql-server/ +[How to read the SQL Server Database Transaction Log]:https://www.mssqltips.com/sqlservertip/3076/how-to-read-the-sql-server-database-transaction-log/ +[Filtered Statistics Follow-up]:https://www.brentozar.com/archive/2016/12/filtered-statistics-follow/ +[SQL Server Query Optimization: No Unknown Unknowns]:http://sqlmag.com/sql-server/sql-server-query-optimization-no-unknown-unknowns +[Sync Vs Async Statistics: The Old Debate]:https://sqlserverscotsman.wordpress.com/2016/12/10/sync-vs-async-statistics-the-old-debate/ +[Recommended updates and configuration options for SQL Server 2012 and SQL Server 2014 with high-performance workloads]:https://support.microsoft.com/en-gb/kb/2964518 +[Troubleshooting SQL Server backup and restore operations]:https://support.microsoft.com/en-us/kb/224071 +[SQL Server 2016: Getting tempdb a little more right]:https://blogs.sentryone.com/aaronbertrand/sql-server-2016-tempdb-fixes/ +[Practical uses of binary types]:https://sqlsunday.com/2017/01/09/binary-types/ +[Backing Up SQL Server Databases is Easier in PowerShell than T-SQL]:http://www.sqlservercentral.com/articles/PowerShell/151510/ +[Creating, detaching, re-attaching, and fixing a SUSPECT database]:http://www.sqlskills.com/blogs/paul/creating-detaching-re-attaching-and-fixing-a-suspect-database/ +[Modifying Tables Online – Part 1: Migration Strategy]:http://michaeljswart.com/2012/04/modifying-tables-online-part-1-migration-strategy/ +[Modifying Tables Online – Part 2: Implementation Example]:http://michaeljswart.com/2012/04/modifying-tables-online-part-2-implementation-example/ +[Modifying Tables Online – Part 3: Example With Error Handling]:http://michaeljswart.com/2012/04/modifying-tables-online-part-3-example-with-error-handling/ +[Modifying Tables Online – Part 4: Testing]:http://michaeljswart.com/2012/04/modifying-tables-online-part-4-testing/ +[Modifying Tables Online – Part 5: Just One More Thing]:http://michaeljswart.com/2012/04/modifying-tables-online-part-5-just-one-more-thing/ +[DATEDIFF vs. DATEADD]:http://www.madeiradata.com/datediff-vs-dateadd/ +[Disaster recovery 101: hack-attach a damaged database]:http://www.sqlskills.com/blogs/paul/disaster-recovery-101-hack-attach-a-damaged-database/ +[Bones of SQL - The Calendar Table]:http://www.sqlservercentral.com/articles/calendar/145206/ +[SQL Server 2016, Double or Nothing, Always Encrypted with temporal tables]:http://www.sqldoubleg.com/2016/07/27/sql-server-2016-double-or-nothing-always-encrypted-with-temporal-tables/ +[Reclaiming Space After Column Data Type Change]:http://www.sqlservercentral.com/articles/data+type/144308/ +[Packing Intervals with Priorities]:http://sqlmag.com/sql-server/packing-intervals-priorities +[Avoid Unnecessary Lookups when Using ROW_NUMBER for Paging]:http://sqlmag.com/t-sql/avoid-unnecessary-lookups-when-using-rownumber-paging +[Migrating a Disk-Based Table to a Memory-Optimized Table in SQL Server]:https://www.simple-talk.com/sql/database-administration/migrating-disk-based-table-memory-optimized-table-sql-server/ +[SQL Server Hardware Optimization]:http://www.sql-server-performance.com/2016/sql-server-hardware-optimization/ +[Index Types Heaps, Primary Keys, Clustered and Nonclustered Indexes]:https://www.littlekendra.com/2017/02/02/index-types-heaps-primary-keys-clustered-and-nonclustered-indexes-dear-sql-dba-episode-28/ +[Identifying Existence of Intersections in Intervals]:http://sqlmag.com/sql-server/identifying-existence-intersections-intervals +[Cheat Sheet How to Configure TempDB for Microsoft SQL Server]:https://www.brentozar.com/archive/2016/01/cheat-sheet-how-to-configure-tempdb-for-microsoft-sql-server/ +[A Tourist’s Guide to the sp_Blitz Source Code, Part 1: The Big Picture]:https://www.brentozar.com/archive/2017/02/tourists-guide-sp_blitz-source-code-part-1-big-picture/ +[SQL Server Default Configurations That You Should Change]:https://www.pythian.com/blog/sql-server-default-configurations-change/ +[Decoding Key and Page WaitResource for Deadlocks and Blocking]:https://www.littlekendra.com/2016/10/17/decoding-key-and-page-waitresource-for-deadlocks-and-blocking/ +[Security in the CLR World Inside SQL Server]:http://www.codemag.com/article/0603031 +[On the Advantages of DateTime2(n) over DateTime]:http://www.sqltact.com/2012/12/on-advantages-of-datetime2n-over.html +[Build Your Own Tools]:http://michaeljswart.com/2016/09/build-your-own-tools/ +[Enhanced T-SQL Error Handling With Extended Events]:http://itsalljustelectrons.blogspot.ru/2016/09/Enhanced-TSQL-Error-Handling-With-Extended-Events.html +[Compression and its Effects on Performance]:https://sqlperformance.com/2017/01/sql-performance/compression-effect-on-performance +[Does Truncate Table Reset Statistics]:https://www.littlekendra.com/2016/12/08/does-truncate-table-reset-statistics/ +[SQL Server Database Decommissioning Check List]:https://www.mssqltips.com/sqlservertip/4333/sql-server-database-decommissioning-check-list/ +[New SQL Server Database Request Questionnaire and Checklist]:https://www.mssqltips.com/sqlservertip/3523/new-sql-server-database-request-questionnaire-and-checklist/ +[Adding Partitions to the Lower End of a Left Based Partition Function]:https://www.littlekendra.com/2017/02/21/adding-partitions-to-the-lower-end-of-a-left-based-partition-function/ +[Don't Panic Busting a File Space Myth]:http://sqlmag.com/database-administration/dont-panic-busting-file-space-myth +[#BackToBasics : Dating Responsibly]:https://blogs.sentryone.com/aaronbertrand/backtobasics-dating-responsibly/ +[#BackToBasics : Common Table Expressions (CTEs)]:https://blogs.sentryone.com/aaronbertrand/backtobasics-ctes/ +[How to Establish Dedicated Admin Connection (DAC) to SQL Server]:https://www.codeproject.com/tips/1136361/how-to-establish-dedicated-admin-connection-dac-to +[SQL and SQL only Best Practice]:http://strictlysql.blogspot.ru/search/label/Best%20Practices +[There Is No Difference Between Table Variables, Temporary Tables, and Common Table Expressions]:https://dzone.com/articles/there-is-no-difference-between-table-variables-tem +[Availability Group on SQL Server 2016]:http://www.madeiradata.com/availability-group-sql-server-2016/ +[Using SQL Server and R Services for analyzing DBA Tasks]:http://www.sqlservercentral.com/articles/R+Language/151405/ +[SQLskills SQL101: Dealing with SQL Server corruption]:https://www.sqlskills.com/blogs/paul/sqlskills-sql101-dealing-with-sql-server-corruption/ +[Advanced Analytics with R & SQL: Part I - R Distributions]:http://www.sqlservercentral.com/articles/Data+Science/146555/ +[T-SQL Tuesday #85 STOP! Restore Time!]:http://www.sqlhammer.com/t-sql-tuesday-85-stop-restore-time +[Filtered Indexes: Rowstore vs Nonclustered Columnstore]:https://www.littlekendra.com/2016/11/10/filtered-indexes-rowstore-vs-nonclustered-columnstore/ +[ALTER SCHEMA TRANSFER for Zero Downtime Database Upgrades]:http://www.davewentzel.com/content/alter-schema-transfer-zero-downtime-database-upgrades +[Delayed Durability in SQL Server 2014]:https://sqlperformance.com/2014/04/io-subsystem/delayed-durability-in-sql-server-2014 +[Daylight Savings end affects not only you, but your SQL Server too]:http://www.sqldoubleg.com/2015/10/28/daylight-savings-end-affects-not-only-you-but-your-sql-server-too/ +[Searching Strings in SQL Server is Expensive]:https://www.brentozar.com/archive/2016/10/searching-strings-sql-server-expensive/ +[Let’s Corrupt a SQL Server Database Together, Part 1: Clustered Indexes]:https://www.brentozar.com/archive/2017/02/lets-corrupt-sql-server-database-together/ +[Let’s Corrupt a Database Together, Part 2: Nonclustered Indexes]:https://www.brentozar.com/archive/2017/02/lets-corrupt-database-together-part-2-nonclustered-indexes/ +[The Guide SQL Server Installation Checklist (settings that increase SQL Server Performance)]:https://red9.com/blog/sql-server-installation-checklist/ +[SQL Browser, what is it good for? Absolutely something!]:http://www.cjsommer.com/2017-03-01-sql-browser-what-is-it-good-for-absolutely-something/ +[PowerShell Getting More From Generic Error Messages]:https://nocolumnname.wordpress.com/2017/03/02/powershell-getting-more-from-generic-error-messages/ +[SQL VNext sp_configure on Windows and Linux with dbatools]:https://sqldbawithabeard.com/2017/02/27/sql-vnext-sp_configure-on-windows-and-linux-with-dbatools/ +[Adding a T-SQL Job Step to a SQL Agent Job with PowerShell]:https://sqldbawithabeard.com/2017/02/20/adding-a-t-sql-job-step-to-a-sql-agent-job-with-powershell/ +[Setting up Database Mail to use my Gmail account]:https://mathaywardhill.com/2017/03/01/setting-up-database-mail-to-use-my-gmail-account/ +[Using DBCC CLONEDATABASE and Query Store for Testing]:https://sqlperformance.com/2017/02/sql-performance/clonedatabase-query-store-testing +[Getting Started with Natural Earth — A SQL Server Shapefile Alternative (Geospatial Resource)]:http://blog.jpries.com/2017/02/17/getting-started-with-natural-earth-sql-server/ +[SQL Server Temporal Tables: How-To Recipes]:https://www.simple-talk.com/sql/sql-training/sql-server-temporal-tables-recipes/ +[The Migration Checklist]:http://www.sqlservercentral.com/articles/Editorial/154033/ +[Upgrading to SQL Server 2014: A Dozen Things to Check]:https://thomaslarock.com/2014/06/upgrading-to-sql-server-2014-a-dozen-things-to-check/ +[Number of Rows Read / Actual Rows Read warnings in Plan Explorer]:https://sqlperformance.com/2016/06/sql-indexes/actual-rows-read-warnings-plan-explorer +[Introducing the Set-based Loop]:http://www.sqlservercentral.com/articles/set-based+loop/127670/ +[Representing Hierarchical Data for Mere Mortals]:https://www.simple-talk.com/sql/database-administration/representing-hierarchical-data-for-mere-mortals/ +[KPIs For DBAs to Show Their CIOs]:https://thomaslarock.com/2017/03/kpis-dbas-show-cios/ +[How To Forecast Database Disk Capacity If You Don’t Have A Monitoring Tool]:http://www.edwinmsarmiento.com/how-to-forecast-database-disk-capacity-if-you-dont-have-a-monitoring-tool/ +[Statistical Sampling for Verifying Database Backups]:https://www.simple-talk.com/sql/database-administration/statistical-sampling-for-verifying-database-backups/ +[Using dbatools for automated restore and CHECKDB]:http://www.centinosystems.com/blog/sql/using-dbatools-for-automated-restore-and-checkdb/ +[Bad Habits Revival]:https://blogs.sentryone.com/aaronbertrand/bad-habits-revival/ +[Deploying Multiple SSIS Projects via PowerShell]:https://www.simple-talk.com/sql/ssis/deploying-multiple-ssis-projects-via-powershell/ +[Determining the Cost Threshold for Parallelism]:http://www.scarydba.com/2017/02/28/determining-the-cost-threshold-for-parallelism/ +[Identifying a row’s physical location]:http://blog.waynesheffield.com/wayne/archive/2017/03/identifying-rows-physical-location/ +[Split a file group into multiple data files]:https://blogs.msdn.microsoft.com/sql_pfe_blog/2017/03/03/split-a-file-group-into-multiple-data-files/ +[Why PFS pages cannot be repaired]:https://www.sqlskills.com/blogs/paul/why-pfs-pages-cannot-be-repaired/ +[ERRORLOG records max out at 2049 characters]:https://www.codykonior.com/2017/03/02/errorlog-records-max-out-at-2047-characters/ +[How to Build a SQL Server Disaster Recovery Plan with Google Compute Engine]:https://www.brentozar.com/archive/2017/03/new-white-paper-build-sql-server-disaster-recovery-plan-google-compute-engine/ +[SQL Server Performance Tuning in Google Compute Engine]:https://www.brentozar.com/archive/2017/03/new-white-paper-sql-server-performance-tuning-google-compute-engine/ +[Configuring R on SQL Server 2016]:http://sqlmag.com/sql-server/configuring-r-sql-server-2016 +[Knee-Jerk PerfMon Counters: Page Life Expectancy]:https://sqlperformance.com/2014/10/sql-performance/knee-jerk-page-life-expectancy +[Change Management Template for SQL Server DBAs and Developers]:https://www.littlekendra.com/2016/04/12/change-management-template-for-sql-server-dbas-and-deveopers/ +[Performance Myths: Clustered vs. Non-Clustered Indexes]:https://sqlperformance.com/2017/03/sql-indexes/performance-myths-clustered-vs-non-clustered +[Bad habits: Counting rows the hard way]:https://sqlperformance.com/2014/10/t-sql-queries/bad-habits-count-the-hard-way +[Why Cost Threshold For Parallelism Shouldn’t Be Set To 5]:https://www.brentozar.com/archive/2017/03/why-cost-threshold-for-parallelism-shouldnt-be-set-to-5/ +[Join Performance, Implicit Conversions, and Residuals]:http://sqlblog.com/blogs/paul_white/archive/2011/07/19/join-performance-implicit-conversions-and-residuals.aspx +[Implicit Conversions that cause Index Scans]:https://www.sqlskills.com/blogs/jonathan/implicit-conversions-that-cause-index-scans/ +[When Is It Appropriate To Store JSON in SQL Server?]:https://blog.bertwagner.com/when-is-it-appropriate-to-store-json-in-sql-server-8ed1eed1520d#.s7ntvsyd0?utm_source=DBW&utm_medium=pubemail +[The Performance Penalty of Bookmark Lookups in SQL Server]:http://www.sqlpassion.at/archive/2017/03/13/the-performance-penalty-of-bookmark-lookups-in-sql-server/ +[Why You Should Change the Cost Threshold for Parallelism]:http://www.scarydba.com/2017/03/13/change-the-cost-threshold-for-parallelism/ +[Why Update Statistics can cause an IO storm]:https://www.brentozar.com/archive/2014/01/update-statistics-the-secret-io-explosion/ +[SQLskills SQL101 Temporary table misuse]:https://www.sqlskills.com/blogs/paul/sqlskills-sql101-temporary-table-misuse/ +[SQL Server sp_execute_external_script Stored Procedure Examples]:https://www.mssqltips.com/sqlservertip/4747/sql-server-spexecuteexternalscript-stored-procedure-examples/ +[Transparent Data Encryption and Replication]:http://port1433.com/2017/03/15/transparent-data-encryption-and-replication-sql-servers-rear-window/ +[SQL Server Installation Checklist]:https://www.sqlskills.com/blogs/jonathan/sql-server-installation-checklist/ +[Indexed Views And Data Modifications]:https://www.brentozar.com/archive/2017/03/indexed-views-data-modifications/ +[Deployment Automation for SQL Server Integration Services (SSIS)]:https://www.simple-talk.com/sql/ssis/deployment-automation-for-sql-server-integration-services-ssis/ +[Why Developers Should Consider Microsoft SQL Server]:https://www.brentozar.com/archive/2017/03/developers-consider-microsoft-sql-server/ +[SQLskills SQL101: Indexes on Foreign Keys]:https://www.sqlskills.com/blogs/kimberly/sqlskills-sql101-indexes-foreign-keys/ +[SQLskills SQL101: Updating SQL Server Statistics Part I – Automatic Updates]:https://www.sqlskills.com/blogs/erin/sqlskills-sql101-updating-sql-server-statistics-part-i-automatic-updates/ +[Processing Loops in SQL Server]:https://www.codeproject.com/Articles/1177788/Processing-Loops-in-SQL-Server +[The Mysterious Case of the Missing Default Value]:http://www.sqlservercentral.com/articles/SQL+Server+internal+storage/132990/ +[Plan Caching]:https://www.sqlpassion.at/archive/2017/03/20/plan-caching/ +[sp_executesql Is Not Faster Than an Ad Hoc Query]:http://www.sqlservercentral.com/blogs/scarydba/2016/11/07/sp_executesql-is-not-faster-than-an-ad-hoc-query/ +[Backing up SQL Server on Linux using Ola Hallengrens Maintenance Solution]:https://sqldbawithabeard.com/2017/03/22/backing-up-sql-server-on-linux-using-ola-hallengrens-maintenance-solution/ +[Delayed Durability in SQL Server 2014 Paul Randal]:http://www.sqlskills.com/blogs/paul/delayed-durability-sql-server-2014/ +[Why Is This Query Sometimes Fast and Sometimes Slow]:https://www.brentozar.com/archive/2016/11/query-sometimes-fast-sometimes-slow/ +[Using Plan Guides to Remove OPTIMIZE FOR UNKNOWN Hints]:https://www.brentozar.com/archive/2016/11/using-plan-guides-remove-optimize-unknown-hints/ +[ETL Best Practices]:https://www.timmitchell.net/etl-best-practices/ +[Resolving Key Lookup Deadlocks with Plan Explorer]:https://blogs.sentryone.com/greggonzalez/key-lookup-deadlocks-plan-explorer/ +[Why ROWLOCK Hints Can Make Queries Slower and Blocking Worse in SQL Server]:https://www.littlekendra.com/2016/02/04/why-rowlock-hints-can-make-queries-slower-and-blocking-worse-in-sql-server/ +[Does a Clustered Index really physically store the rows in key order]:http://www.sqlservercentral.com/blogs/discussionofsqlserver/2012/10/21/does-a-clustered-index-really-physically-store-the-rows-in-key-order/ +[Ugly Pragmatism For The Win]:http://michaeljswart.com/2016/02/ugly-pragmatism-for-the-win/ +[Architecting Microsoft SQL Server on VMware vSphere]:http://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/solutions/sql-server-on-vmware-best-practices-guide.pdf +[Hiding tables in SSMS Object Explorer]:https://sqlstudies.com/2017/04/03/hiding-tables-in-ssms-object-explorer-using-extended-properties/ +[Clustered columnstore: on-disk vs. in-mem]:http://nedotter.com/archive/2017/03/clustered-columnstore-on-disk-vs-in-mem/ +[Generating Plots Automatically From PowerShell and SQL Server Using Gnuplot]:https://www.simple-talk.com/sql/database-delivery/generating-plots-automatically-powershell-sql-server-using-gnuplot/ +[How to Benchmark Alternative SQL Queries to Find the Fastest Query]:https://blog.jooq.org/2017/03/29/how-to-benchmark-alternative-sql-queries-to-find-the-fastest-query/ +[Checking for Strange Client Settings with sys.dm_exec_sessions]:https://www.brentozar.com/archive/2017/03/checking-strange-client-settings-sys-dm_exec_sessions/ +[Decrypting Insert Query Plans]:https://www.brentozar.com/archive/2017/03/decrypting-insert-query-plans/ +[SQLskills SQL101: Partitioning]:https://www.sqlskills.com/blogs/kimberly/sqlskills-sql101-partitioning/ +[SQLskills SQL101: Switching recovery models]:https://www.sqlskills.com/blogs/paul/sqlskills-sql101-switching-recovery-models/ +[Using AT TIME ZONE to fix an old report]:https://sqlperformance.com/2017/02/t-sql-queries/using-at-time-zone-to-fix-an-old-report +[What the heck is a DTU]:https://sqlperformance.com/2017/03/azure/what-the-heck-is-a-dtu +[Hack-Attaching a SQL Server database with NORECOVERY]:http://sqlblog.com/blogs/argenis_fernandez/archive/2017/01/24/hack-attaching-a-sql-server-database-with-norecovery.aspx +[Switch in Staging Tables Instead of sp_rename]:https://www.littlekendra.com/2017/01/19/why-you-should-switch-in-staging-tables-instead-of-renaming/ +[Performance Myths: Table variables are always in-memory]:https://sqlperformance.com/2017/04/performance-myths/table-variables-in-memory +[Questions About SQL Server Collations You Were Too Shy to Ask]:https://www.simple-talk.com/sql/sql-development/questions-sql-server-collations-shy-ask/ +[NULL - The database's black hole]:http://sqlblog.com/blogs/hugo_kornelis/archive/2007/07/06/null-ndash-the-database-rsquo-s-black-hole.aspx +[Inside the Storage Engine: Using DBCC PAGE and DBCC IND to find out if page splits ever roll back]:http://www.sqlskills.com/blogs/paul/inside-the-storage-engine-using-dbcc-page-and-dbcc-ind-to-find-out-if-page-splits-ever-roll-back/ +[Inside the Storage Engine: Anatomy of a page]:http://www.sqlskills.com/blogs/paul/inside-the-storage-engine-anatomy-of-a-page/ +[For The Better Developer: SQL Server Indexes]:http://sqlblog.com/blogs/davide_mauri/archive/2017/04/02/for-the-better-developer-sql-server-indexes.aspx +[#EntryLevel: Compression & Data Types]:https://blogs.sentryone.com/melissaconnors/entry-level-compression/ +[Cardinality Estimation for a Predicate on a COUNT Expression]:https://sqlperformance.com/2017/04/sql-optimizer/cardinality-count +[Changing SQL Server Collation After Installation]:https://www.mssqltips.com/sqlservertip/3519/changing-sql-server-collation-after-installation/ +[Does a TempDB spill mean statistics are out of date?]:https://www.brentozar.com/archive/2017/04/tempdb-spill-mean-statistics-date/ +[Transaction log growth during BACKUP]:https://www.am2.co/2017/04/transaction-log-growth-backup/ +[When is a SQL function not a function?]:http://sqlblog.com/blogs/rob_farley/archive/2011/11/08/when-is-a-sql-function-not-a-function.aspx +[Introducing Batch Mode Adaptive Joins]:https://blogs.msdn.microsoft.com/sqlserverstorageengine/2017/04/19/introducing-batch-mode-adaptive-joins/ +[Investigating the proportional fill algorithm]:https://www.sqlskills.com/blogs/paul/investigating-the-proportional-fill-algorithm/ +[Understanding Logging and Recovery in SQL Server]:https://technet.microsoft.com/en-us/library/2009.02.logging.aspx +[Bad Habits to Kick: Using shorthand with date/time operations]:http://sqlblog.com/blogs/aaron_bertrand/archive/2011/09/20/bad-habits-to-kick-using-shorthand-with-date-time-operations.aspx +[Generating Charts and Drawings in SQL Server Management Studio]:http://sqlmag.com/t-sql/generating-charts-and-drawings-sql-server-management-studio +[How expensive are column-side Implicit Conversions?]:https://sqlperformance.com/2013/04/t-sql-queries/implicit-conversion-costs +[Execution Plan Basics]:https://www.simple-talk.com/sql/performance/execution-plan-basics/ +[Disabling ROW and PAGE Level Locks in SQL Server]:http://www.sqlpassion.at/archive/2016/10/31/disabling-row-and-page-level-locks-in-sql-server/ +[Fixing Cardinality Estimation Errors with Filtered Statistics]:https://www.sqlpassion.at/archive/2013/10/29/fixing-cardinality-estimation-errors-with-filtered-statistics/ +[Cardinality Estimation for Multiple Predicates]:https://sqlperformance.com/2014/01/sql-plan/cardinality-estimation-for-multiple-predicates +[Weaning yourself off of SQL Profiler (Part 1)]:http://blog.waynesheffield.com/wayne/archive/2017/04/weaning-yourself-off-sql-profiler/ +[Properly Persisted Computed Columns]:https://sqlperformance.com/2017/05/sql-plan/properly-persisted-computed-columns +[A SQL Server DBA myth a day: (17/30) page checksums]:https://www.sqlskills.com/blogs/paul/a-sql-server-dba-myth-a-day-1730-page-checksums/ +[What are different ways to replace ISNULL() in a WHERE clause that uses only literal values?]:https://dba.stackexchange.com/questions/168276/what-are-different-ways-to-replace-isnull-in-a-where-clause-that-uses-only-lit +[Weaning yourself off of SQL Profiler (Part 1)]:http://blog.waynesheffield.com/wayne/archive/2017/04/weaning-yourself-off-sql-profiler/ +[SQL Server 2016 enhancements – Truncate Table and Table Partitioning]:https://www.sqlshack.com/sql-server-2016-enhancements-truncate-table-table-partitioning +[SQL Server Mysteries: The Case of the Not 100% RESTORE…]:https://blogs.msdn.microsoft.com/sql_server_team/sql-server-mysteries-the-case-of-the-not-100-restore/ +[Transactional Replication and Stored Procedure Execution: Silver Bullet or Poison Pill?]:http://port1433.com/2017/04/11/transactional-replication-and-stored-procedure-execution-silver-bullet-or-poison-pill/ +[STOPAT And Date Formats]:https://itsalljustelectrons.blogspot.ru/2017/07/STOPAT-And-Date-Formats.html +[Row-count Estimates when there are no Statistics]:http://www.sqlservercentral.com/blogs/matthew-mcgiffen-dba/2017/06/28/row-count-estimates-when-there-are-no-statistics/ +[SQL Server DBA On-Boarding Checklist]:https://www.mssqltips.com/sqlservertip/4871/sql-server-dba-onboarding-checklist/ +[Be Wary of Date Formatting in T-SQL]:https://bornsql.ca/2017/07/wary-date-formatting-t-sql/ +[The ultimate guide to the datetime datatypes]:http://www.karaszi.com/SQLServer/info_datetime.asp +[Statistics and Cardinality Estimation]:http://www.sqlservercentral.com/blogs/matthew-mcgiffen-dba/2017/06/20/statistics-and-cardinality-estimation/ +[Message queues for the DBA: sending data out into the world]:http://port1433.com/2017/07/21/messaging-queuing-for-the-dba-sending-data-out-into-the-world/ +[Schema-Based Access Control for SQL Server Databases]:https://www.red-gate.com/simple-talk/sql/sql-training/schema-based-access-control-for-sql-server-databases/ +[SQL Server: large RAM and DB Checkpointing]:https://blogs.msdn.microsoft.com/psssql/2017/06/29/sql-server-large-ram-and-db-checkpointing/ +[Handling SQL Server Deadlocks With Event Notifications]:https://itsalljustelectrons.blogspot.ru/2017/06/Handling-SQL-Server-Deadlocks-With-Event-Notifications.html +[SQL Server R Services: Digging into the R Language]:https://www.red-gate.com/simple-talk/sql/bi/sql-server-r-services-digging-r-language/ +[Investigating the Cause of SQL Server High CPU Load Conditions When They Happen]:https://www.red-gate.com/simple-talk/sql/database-administration/investigating-cause-sql-server-high-cpu-load-conditions-happen/ +[In-Memory Engine DURABILITY = SCHEMA_ONLY And Transaction Rollback]:https://chrisadkin.io/2017/07/17/in-memory-engine-durability-schema_only-and-transaction-rollback/ +[Builder Day: Doing a Point-in-Time Restore in Azure SQL DB]:https://www.brentozar.com/archive/2017/06/builder-day-point-time-restore-azure-sql-db/ +[Creating Continuous Integration Build Pipelines With Jenkins, Docker and SQL Server]:https://chrisadkin.io/2017/07/18/creating-continuous-integration-build-pipelines-with-jenkins-docker-and-sql-server/ +[Scale-able Windows Aggregate Functions With Row Store Object]:https://chrisadkin.io/2017/07/24/scale-able-windows-aggregate-functions-with-row-store-objects/ +[Azure DWH part 11: Data Warehouse Migration Utility]:http://www.sqlservercentral.com/articles/Azure+SQL+Data+Warehouse+(ASDW)/158311/ +[Representing a simple hierarchical list in SQL Server with JSON, YAML, XML and HTML]:https://www.red-gate.com/simple-talk/blogs/71858/ +[Advanced Analytics with R and SQL Part II - Data Science Scenarios]:http://www.sqlservercentral.com/articles/Data+Science/158498/ +[Think twice before using table variables]:http://www.sqlservercentral.com/blogs/matthew-mcgiffen-dba/2017/07/11/think-twice-before-using-table-variables/ +[ColumnStore Indexes And Recursive CTEs]:https://www.brentozar.com/archive/2017/07/columnstore-indexes-recursive-ctes/ +[CCIs and String Aggregation]:https://orderbyselectnull.com/2017/07/03/ccis-and-string-aggregation/ +[Brad’s Sure DBA Checklist]:https://www.red-gate.com/simple-talk/sql/database-administration/brads-sure-dba-checklist/ +[Query Store and Parameterization Problems]:https://www.red-gate.com/simple-talk/sql/database-administration/query-store-parameterization-problems/ +[SQL Server Event Handling: Event Notifications]:https://itsalljustelectrons.blogspot.ru/2016/11/SQL-Server-Event-Handling-Event-Notifications.html +[Identifying Deprecated Feature Usage (Part 1)]:https://itsalljustelectrons.blogspot.ru/2017/07/Identifying-Deprecated-Feature-Usage-pt1.html +[Let’s Corrupt a Database Together, Part 3: Detecting Corruption]:https://www.brentozar.com/archive/2017/07/lets-corrupt-database-together-part-3-detecting-corruption/ +[XML vs JSON Shootout: Which is Superior in SQL Server 2016?]:https://blog.bertwagner.com/xml-vs-json-shootout-which-is-superior-in-sql-server-2016-b97bf7766ef2 +[One SQL Cheat Code For Amazingly Fast JSON Queries]:https://blog.bertwagner.com/one-sql-cheat-code-for-amazingly-fast-json-queries-1c2402b4b0d2 +[The Ultimate SQL Server JSON Cheat Sheet]:https://blog.bertwagner.com/the-ultimate-sql-server-json-cheat-sheet-2fbb98049a37 +[Are your indexes being thwarted by mismatched datatypes?]:https://blog.bertwagner.com/are-your-indexes-being-thwarted-by-mismatched-datatypes-d3985375e528 +[Why Missing Index Recommendations Aren’t Perfect]:https://www.brentozar.com/archive/2017/08/missing-index-recommendations-arent-perfect/ +[Top 5 Misleading SQL Server Performance Counters]:https://sqlworkbooks.com/2017/06/top-5-misleading-sql-server-performance-counters/ +[The Case of the Space at the End]:http://www.sqlservercentral.com/articles/ANSI_PADDING/157467/ +[SELECT…INTO in SQL Server 2017]:https://dbafromthecold.com/2017/08/02/select-into-in-sql-server-2017/ +[Your Service Level Agreement is a Disaster]:http://minionware.net/service-level-agreement-disaster/ +[SQLskills SQL101: REBUILD vs. REORGANIZE]:https://www.sqlskills.com/blogs/paul/sqlskills-sql101-rebuild-vs-reorganize/ +[Where do the Books Online index fragmentation thresholds come from?]:https://www.sqlskills.com/blogs/paul/where-do-the-books-online-index-fragmentation-thresholds-come-from/ +[The SQL Hall of Shame]:http://sqlblog.com/blogs/adam_machanic/archive/2017/06/14/the-sql-hall-of-shame.aspx +[A Better Way To Select Star]:https://www.brentozar.com/archive/2017/07/better-way-select-star/ +[UDP vs TCP]:https://sqlstudies.com/2017/06/07/udp-vs-tcp/ +[When a Nonclustered Index and Statistics Make a Query Slower]:https://sqlworkbooks.com/2017/05/when-a-nonclustered-index-and-statistics-make-a-query-slower/ +[Lipoaspiration in your SQL Server Database]:https://www.red-gate.com/simple-talk/sql/performance/lipoaspiration-in-your-sql-server-database/ +[13 Things You Should Know About Statistics and the Query Optimizer]:https://www.red-gate.com/simple-talk/sql/t-sql-programming/13-things-you-should-know-about-statistics-and-the-query-optimizer/ +[Creating R Stored Procedures in SQL Server 2016 Using sqlrutils]:http://www.nielsberglund.com/2017/06/25/creating-r-stored-procedures-in-sql-server-2016-using-sqlrutils/ +[A Quick start Guide to Managing SQL Server 2017 on CentOS/RHEL Using the SSH Protocol]:https://www.sqlshack.com/quick-start-guide-managing-sql-server-2017-centosrhel-using-ssh-protocol/ +[SQL Server v.Next : STRING_AGG Performance, Part 2]:https://sqlperformance.com/2017/01/sql-performance/sql-server-v-next-string_agg-performance-part-2 +[Why Parameter Sniffing Is Making Your Queries Receive Sub-Optimal Execution Plans]:https://blog.bertwagner.com/why-parameter-sniffing-isnt-always-a-bad-thing-but-usually-is-ba6a62a97b68 +[Persisting statistics sampling rate]:https://blogs.msdn.microsoft.com/sql_server_team/persisting-statistics-sampling-rate/ +[All about locking in SQL Server]:https://www.sqlshack.com/locking-sql-server/ +[All about Latches in SQL Server]:https://www.sqlshack.com/all-about-latches-in-sql-server/ +[All about SQL Server spinlocks]:https://www.sqlshack.com/sql-server-spinlocks/ +[How to monitor object space growth in SQL Server]:https://www.sqlshack.com/monitor-object-space-growth-sql-server/ +[How to Read a Transaction Log Backup]:http://www.databasejournal.com/features/mssql/how-to-read-a-transaction-log-backup.html +[How to Find Out Which Database Object Got Deleted]:http://www.databasejournal.com/tips/how-to-find-out-which-database-object-got-deleted.html +[In-Memory OLTP Enhancements in SQL Server 2016]:https://www.sqlshack.com/memory-oltp-enhancements-sql-server-2016/ +[Sync SQL Logins and Jobs]:https://blogs.msdn.microsoft.com/sql_pfe_blog/2017/08/21/sync-sql-logins-and-jobs/ +[The Trillion Row Table]:https://orderbyselectnull.com/2017/08/16/the-trillion-row-table/ +[Dynamic Data Unmasking]:https://orderbyselectnull.com/2017/08/25/dynamic-data-unmasking/ +[Why is My Database Application so Slow?]:https://www.red-gate.com/simple-talk/dotnet/net-performance/database-application-slow/ +[Generating Concurrent Activity]:http://michaeljswart.com/2014/01/generating-concurrent-activity/ +[Required Testing for Installing SQL Server Cumulative Updates and Service Packs]:http://littlekendra.com/2016/04/28/required-testing-for-installing-sql-server-cumulative-updates-and-service-packs/ +[Microsoft SQL Server R Services - Internals X]:http://www.nielsberglund.com/2017/08/29/microsoft-sql-server-r-services-internals-x/ +[Clustered columnstore: on-disk vs. in-mem]:http://nedotter.com/archive/2017/03/clustered-columnstore-on-disk-vs-in-mem/ +[Hands on Full-Text Search in SQL Server]:https://www.sqlshack.com/hands-full-text-search-sql-server/ +[SQL Code Smells]:https://www.red-gate.com/simple-talk/sql/t-sql-programming/sql-code-smells/ +[Corruption demo databases and scripts]:https://www.sqlskills.com/blogs/paul/corruption-demo-databases-and-scripts/ +[Understanding Cross-Database Transactions in SQL Server]:https://www.red-gate.com/simple-talk/sql/database-administration/understanding-cross-database-transactions-in-sql-server/ +[Optional Parameters and Missing Index Requests]:https://www.brentozar.com/archive/2017/09/optional-parameters-missing-index-requests/ +[Uniquifier is a rather unique word isn’t it?]:https://sqlstudies.com/2017/09/18/uniquifier-is-a-rather-unique-word-isnt-it/ +[Importance of proper transaction log size management]:https://www.sqlskills.com/blogs/paul/importance-of-proper-transaction-log-size-management/ +[#TSQL2sDay – Starting Out with PowerShell]:https://sqldbawithabeard.com/2017/09/12/tsql2sday-starting-out-with-powershell/ +[Using native compilation to insert parent/child tables]:http://nedotter.com/archive/2017/09/using-native-compilation-to-insert-parentchild-tables/ +[Questions About RDS SQL Server You Were Too Shy to Ask]:https://www.red-gate.com/simple-talk/cloud/cloud-data/questions-rds-sql-server-shy-ask/ +[Active Directory Authentication with SQL Server on Ubuntu]:http://port1433.com/2017/09/19/active-directory-authentication-with-sql-server-on-ubuntu/ +[Temporary Tables in Stored Procedures]:http://sqlblog.com/blogs/paul_white/archive/2012/08/15/temporary-tables-in-stored-procedures.aspx +[SQLCLR in Practice: Creating a Better Way of Sending Email from SQL Server]:https://www.red-gate.com/simple-talk/sql/sql-development/sqlclr-practice-creating-better-way-sending-email-sql-server/ +[T-SQL commands performance comparison – NOT IN vs NOT EXISTS vs LEFT JOIN vs EXCEPT]:https://www.sqlshack.com/t-sql-commands-performance-comparison-not-vs-not-exists-vs-left-join-vs-except/ +[Clustered vs Nonclustered: Index Fundamentals You Need To Know]:https://bertwagner.com/2017/09/26/clustered-vs-nonclustered-index-fundamentals-you-need-to-know/ +[How to Write Efficient TOP N Queries in SQL]:https://blog.jooq.org/2017/09/22/how-to-write-efficient-top-n-queries-in-sql/ +[Checklist: DR Plan Sanity Check]:http://sqlsoldier.net/wp/sqlserver/checklistdrplansanitycheck +[Table level recovery for selected SQL Server tables]:https://www.mssqltips.com/sqlservertip/2814/table-level-recovery-for-selected-sql-server-tables/ +[SQL Mirroring, Preserving the Log Chain During Database Migrations]:https://sqlundercover.com/2017/01/21/sql-mirroring-preserving-the-log-chain-during-database-migrations/ +[How NOLOCK Will Block Your Queries]:https://bertwagner.com/2017/10/10/how-nolock-will-block-your-queries/ +[8 Ways to Export SQL Results To a Text File]:http://www.sqlservercentral.com/articles/Export/147145/ +[SQL Server Installation Failed Due to Pending Restart of Server?]:https://thelonedba.wordpress.com/2017/09/18/sql-server-installation-failed-due-to-pending-restart-of-server/ +[Six Scary SQL Surprises]:https://www.red-gate.com/simple-talk/sql/database-administration/six-scary-sql-surprises/ +[How the rowversion datatype works when adding and deleting columns]:http://sqlblog.com/blogs/louis_davidson/archive/2017/09/26/how-the-rowversion-datatype-works-when-adding-and-deleting-columns.aspx +[Quick! What's the difference between RANK, DENSE_RANK, and ROW_NUMBER?]:http://douglaskline.blogspot.ru/2017/10/quick-whats-difference-between-rank.html +[A Serial Parallel Query]:https://orderbyselectnull.com/2017/09/26/a-serial-parallel-query/ +[Add or Remove IDENTITY Property From an Existing Column Efficiently]:http://www.dbdelta.com/add-or-remove-identity-property-from-an-existing-column-efficiently/ +[How Do I Analyze a SQL Server Execution Plan?]:https://littlekendra.com/2017/09/22/how-do-i-analyze-a-sql-server-execution-plan/ +[A Subtle Difference Between COALESCE and ISNULL]:https://nocolumnname.wordpress.com/2017/10/09/a-subtle-difference-between-coalesce-and-isnull/ +[Puzzle Challenge: Graph Matching with T-SQL Part 1-Concepts]:http://sqlmag.com/software-development/puzzle-challenge-graph-matching-t-sql-part-1-concepts +[Graph Matching with T-SQL Part 3: Maximum Matching]:http://www.itprotoday.com/microsoft-sql-server/graph-matching-t-sql-part-3-maximum-matching +[Running PowerShell in a SQL Agent Job]:https://www.sqlhammer.com/running-powershell-in-a-sql-agent-job/ +[Line-Continuation in T-SQL]:https://sqlquantumleap.com/2017/10/27/line-continuation-in-t-sql/ +[SQL Server 2017: Making Backups Great Again!]:https://johnsterrett.com/2017/10/31/sql-server-2017-backups/ +[Say NO to Venn Diagrams When Explaining JOINs]:https://blog.jooq.org/2016/07/05/say-no-to-venn-diagrams-when-explaining-joins/ +[Surprise Delta Stores]:https://orderbyselectnull.com/2017/11/07/delta-stores/ +[SQL 2014 Clustered Columnstore index rebuild and maintenance considerations]:https://blogs.msdn.microsoft.com/sqlcat/2015/07/08/sql-2014-clustered-columnstore-index-rebuild-and-maintenance-considerations/ +[The Case of the Weirdly Long COLUMNSTORE_BUILD_THROTTLE Wait]:https://sqlworkbooks.com/2017/11/the-case-of-the-weirdly-long-columnstore_build_throttle-wait/ +[Multiple Output Datasets With R and SQL Server]:https://itsalljustelectrons.blogspot.ru/2017/11/Multiple-Output-Datasets-with-R-and-SQL-Server.html +[How to Avoid Excessive Sorts in Window Functions]:https://blog.jooq.org/2017/11/06/how-to-avoid-excessive-sorts-in-window-functions/ +[Extracting a DAX Query Plan With Analysis Services 2016 Extended Events]:https://www.mssqltips.com/sqlservertip/5106/extracting-a-dax-query-plan-with-analysis-services-2016-extended-events/ +[What impact can different cursor options have?]:https://sqlperformance.com/2012/09/t-sql-queries/cursor-options +[SQL Smackdown!!! Cursors VS Loops]:https://sqlundercover.com/2017/11/16/sql-smackdown-cursors-vs-loops/ +[Using the OPTION (RECOMPILE) option for a statement]:https://www.sqlskills.com/blogs/kimberly/using-the-option-recompile-option-for-a-statement/ +[Execution Plan Caching and Reuse]:https://msdn.microsoft.com/en-us/library/ms181055.aspx +[Buffer Management]:https://msdn.microsoft.com/en-us/library/aa337525.aspx +[RECOMPILE Hints and Execution Plan Caching]:https://www.brentozar.com/archive/2013/12/recompile-hints-and-execution-plan-caching/ +[Improving query performance with OPTION (RECOMPILE), Constant Folding and avoiding Parameter Sniffing issues]:https://blogs.msdn.microsoft.com/robinlester/2016/08/10/improving-query-performance-with-option-recompile-constant-folding-and-avoiding-parameter-sniffing-issues/ +[Eight Different Ways to Clear the SQL Server Plan Cache]:https://www.sqlskills.com/blogs/glenn/eight-different-ways-to-clear-the-sql-server-plan-cache/ +[Introduction and FAQs about Microsoft Azure technologies]:https://www.sqlshack.com/introduction-faqs-microsoft-azure-technologies/ +[Inside the XEvent Profiler]:https://www.sqlhammer.com/inside-xevent-profiler/ +[Does The Join Order of My Tables Matter?]:https://blog.bertwagner.com/does-the-join-order-of-my-tables-matter-e091afb2e385 +[Encrypting SQL Server connections with Let’s Encrypt certificates]:https://sqlsunday.com/2017/11/22/encrypting-tds-with-letsencrypt/ +[Start SQL Server without tempdb]:https://sqlstudies.com/2016/01/20/start-sql-server-without-tempdb/ +[How to configure database mail in SQL Server]:https://www.sqlshack.com/configure-database-mail-sql-server/ +[Understanding SQL server memory grant]:https://blogs.msdn.microsoft.com/sqlqueryprocessing/2010/02/16/understanding-sql-server-memory-grant/ +[Cleanly Uninstalling Stubborn SQL Server Components]:https://www.mssqltips.com/sqlservertip/4050/cleanly-uninstalling-stubborn-sql-server-components/ +[Hey! What's the deal with SQL Server NOCOUNT and T-SQL WHILE loops?]:http://sql-sasquatch.blogspot.ru/2017/11/hey-whats-deal-with-nocount-and-t-sql.html +[Query Store Settings]:https://www.sqlskills.com/blogs/erin/query-store-settings/ +[Using Plan Explorer with Entity Framework]:https://blogs.sentryone.com/jasonhall/using-plan-explorer-entity-framework/ +[Overview of Encryption Tools in SQL Server]:https://matthewmcgiffen.com/2017/12/05/overview-of-encryption-tools-in-sql-server/ +[Clustered Index Uniquifier Existence and Size]:https://sqlquantumleap.com/2017/09/18/clustered-index-uniquifier-existence-and-size/ +[Understanding Logging and Recovery in SQL Server]:https://technet.microsoft.com/en-us/library/2009.02.logging.aspx +[Understanding SQL Server Backups]:https://technet.microsoft.com/en-us/library/2009.07.sqlbackup.aspx +[Recovering from Disasters Using Backups]:https://technet.microsoft.com/en-us/library/ee677581.aspx +[Simple SQL: Handling Location Datatypes]:https://www.red-gate.com/simple-talk/sql/t-sql-programming/simple-sql-handling-location-datatypes/ +[Improve SQL Server Performance by Looking at Plan Cache (Part 1)]:https://logicalread.com/sql-server-minimize-single-use-plans-tl01/ +[Improve SQL Server Performance by Looking at Plan Cache (Part 2)]:https://logicalread.com/sql-server-identifying-plans-that-need-tuning-tl01/ +[Improve SQL Server Performance by Looking at Plan Cache (Part 3)]:https://logicalread.com/sql-server-identify-similar-plans-tl01/ +[Take Care When Scripting Batches]:http://michaeljswart.com/2014/09/take-care-when-scripting-batches/ +[When Measuring Timespans, try DATEADD instead of DATEDIFF]:http://michaeljswart.com/2017/12/when-measuring-timespans-try-dateadd-instead-of-datediff/ +[Which user function do I use?]:https://sqlstudies.com/2015/06/24/which-user-function-do-i-use/ +[What’s So Bad About Shrinking Databases with DBCC SHRINKDATABASE?]:https://www.brentozar.com/archive/2017/12/whats-bad-shrinking-databases-dbcc-shrinkdatabase/ +[Which Collation is Used to Convert NVARCHAR to VARCHAR in a WHERE Condition? (Part A of 2: “Duck”)]:https://sqlquantumleap.com/2017/12/08/which-collation-is-used-to-convert-nvarchar-to-varchar-in-a-where-condition-part-a-of-2-duck/ +[Which Collation is Used to Convert NVARCHAR to VARCHAR in a WHERE Condition? (Part B of 2: “Rabbit”)]:https://sqlquantumleap.com/2017/12/11/which-collation-is-used-to-convert-nvarchar-to-varchar-in-a-where-condition-part-b-of-2-rabbit/#comments +[Current State of the NewSQL/NoSQL Cloud Arena]:https://www.red-gate.com/simple-talk/cloud/cloud-data/current-state-newsqlnosql-cloud-arena/ +[SQL Server 2017: JSON]:http://db-devs.com/blog/archive/sql-server-2017-json/ +[Simulating Bad Networks to Test SQL Server Replication]:https://www.red-gate.com/simple-talk/blogs/simulating-bad-networks-test-sql-server-replication/ +[How to Turn on Instant File Initialization]:https://www.databasejournal.com/tips/how-to-turn-on-instant-file-initialization.html +[Bad Idea Jeans: Finding Undocumented Trace Flags]:https://rebrand.ly/brent-finding-undocumented-trace-flags +[A Method to Find Trace Flags]:https://rebrand.ly/joe-finding-undocumented-trace-flags +[Using Windows stored credentials to connect to SQL in containers]:https://dbafromthecold.com/2018/01/17/using-windows-stored-credentials-to-connect-to-sql-in-containers/ +[Step by Step Guide to Migrate SQL Server Data to SQL Server 2017]:https://www.databasejournal.com/features/mssql/step-by-step-guide-to-migrate-sql-server-data-to-sql-server-2017.html +[Nasty Fast PERCENT_RANK]:http://www.sqlservercentral.com/articles/PERCENT_RANK/141532/ +[Administrative Logins and Users]:https://sqlstudies.com/2015/11/02/administrative-logins-and-users/ +[Parallelism in Hekaton (In-Memory OLTP)]:http://www.nikoport.com/2018/01/20/parallelism-in-hekaton-in-memory-oltp/ +[Troubleshooting THREADPOOL Waits]:https://www.sqlpassion.at/archive/2011/10/25/troubleshooting-threadpool-waits/ +[Andy’s Excellent SSIS-in-the-Cloud Adventure, Part 1 – Build an ADFv2 IR Instance]:https://andyleonard.blog/2018/01/andys-excellent-ssis-in-the-cloud-adventure-part-1/ +[PRINT vs. RAISERROR]:http://sqlity.net/en/984/print-vs-raiserror/ +[Does a Clustered Index Give a Default Ordering?]:https://sqlworkbooks.com/2018/02/does-a-clustered-index-give-a-default-ordering/ +[Without ORDER BY, You Can’t Depend On the Order of Results]:http://michaeljswart.com/2013/09/without-order-by-you-cant-depend-on-the-order-of-results/ +[Query Store and “in memory”]:https://www.sqlskills.com/blogs/erin/query-store-and-in-memory/ +[Setting and Identifying Row Goals in Execution Plans]:https://sqlperformance.com/2018/02/sql-plan/setting-and-identifying-row-goals +[Azure and Windows PowerShell: The Basics]:https://www.red-gate.com/simple-talk/sysadmin/powershell/azure-windows-powershell-basics/ +[Auditing Linked Servers]:https://thomaslarock.com/2018/02/auditing-linked-servers/ +[An alternative to data masking]:https://sqlsunday.com/2018/02/05/an-alternative-to-data-masking/ +[Safely and Easily Use High-Level Permissions Without Granting Them to Anyone: Server-level]:https://sqlquantumleap.com/2018/02/15/safely-and-easily-use-high-level-permissions-without-granting-them-to-anyone-server-level/ +[PLEASE, Please, please Stop Using Impersonation, TRUSTWORTHY, and Cross-DB Ownership Chaining]:https://sqlquantumleap.com/2017/12/30/please-please-please-stop-using-impersonation-execute-as/ +[Indexing and Partitioning]:https://dbafromthecold.com/2018/02/21/indexing-and-partitioning/ +[Schema Compare for SQL Server]:https://thomaslarock.com/2018/02/schema-compare-for-sql-server/ +[How to change SQL Server ERRORLOG location]:https://red9.com/sql-server-error-log-location/ +[What’s in a Name?: Inside the Wacky World of T-SQL Identifiers]:https://sqlquantumleap.com/2018/04/09/whats-in-a-name-inside-the-wacky-world-of-t-sql-identifiers/ +[The Uni-Code: The Search for the True List of Valid Characters for T-SQL Regular Identifiers, Part 1]:https://sqlquantumleap.com/2018/04/02/the-uni-code-the-search-for-the-true-list-of-valid-characters-for-t-sql-regular-identifiers-part-1/ +[The Uni-Code: The Search for the True List of Valid Characters for T-SQL Regular Identifiers, Part 2]:https://sqlquantumleap.com/2018/04/04/the-uni-code-the-search-for-the-true-list-of-valid-characters-for-t-sql-regular-identifiers-part-2/ +[Programming SQL Server with SQL Server Management Objects Framework]:https://www.red-gate.com/simple-talk/dotnet/c-programming/programming-sql-server-sql-server-management-objects-framework/ +[Interval Queries in SQL Server]:http://www.itprotoday.com/software-development/interval-queries-sql-server +[Dealing with date and time instead of datetime]:https://sqlperformance.com/2018/03/sql-optimizer/dealing-with-date-and-time +[Insight into the SQL Server buffer cache]:https://www.sqlshack.com/insight-into-the-sql-server-buffer-cache/ +[A concrete example of migration between an Oracle Database and SQL Server using Microsoft Data Migration Assistant]:https://www.sqlshack.com/a-concrete-example-of-migration-between-an-oracle-database-and-sql-server-using-microsoft-data-migration-assistant/ +[Audit SQL Server stop, start, restart]:https://blogs.msdn.microsoft.com/skeeler/2018/03/audit-sql-server-stop-start-restart/ +[Query tuning: Apply yourself]:https://sqltechblog.com/2018/04/06/query-tuning-apply-yourself/ +[How to identify and monitor unused indexes in SQL Server]:https://www.sqlshack.com/how-to-identify-and-monitor-unused-indexes-in-sql-server/ +[Benchmarking: 1-TB table population (part 1: the baseline)]:https://www.sqlskills.com/blogs/paul/benchmarking-1-tb-table-population-part-1-the-baseline/ +[Benchmarking: 1-TB table population (part 2: optimizing log block IO size and how log IO works)]:https://www.sqlskills.com/blogs/paul/benchmarking-1-tb-table-population-part-2-optimizing-log-block-io-size-and-how-log-io-works/ +[An overview of SQL Server database migration tools provided by Microsoft]:https://www.sqlshack.com/an-overview-of-sql-server-database-migration-tools-provided-by-microsoft/ +[Calling Http endpoints in T-SQL using CURL extension]:https://blogs.msdn.microsoft.com/sqlserverstorageengine/2018/04/17/calling-http-endpoints-in-t-sql-using-curl-extension/ +[Why Table Join Orders In Relational Databases]:https://hackernoon.com/why-table-join-orders-in-relational-databases-dont-matter-6de3a35f2959 +[Finding overlapping ranges of data]:https://www.red-gate.com/simple-talk/blogs/finding-overlapping-ranges-data/ +[Avoid use of the MONEY and SMALLMONEY datatypes]:https://www.red-gate.com/hub/product-learning/sql-prompt/avoid-use-money-smallmoney-datatypes +[Provisioning SQL Server Instances with Docker]:https://www.red-gate.com/simple-talk/sysadmin/containerization/provisioning-sql-server-instances-docker/ +[Understanding the graphical representation of the SQL Server Deadlock Graph]:https://www.sqlshack.com/understanding-graphical-representation-sql-server-deadlock-graph/ +[Digitally Signing a Stored Procedure To Allow It To Run With Elevated Permissions]:https://sqlundercover.com/2018/05/02/digitally-signing-a-stored-procedure-to-allow-it-to-run-with-elevated-permissions/ +[NOLOCK and Top Optimization]:https://www.sqlshack.com/nolock-and-top-optimization/ +[Operator Precedence versus the Confusing Constraint Translation]:https://www.red-gate.com/simple-talk/blogs/operator-precedence-versus-confusing-constraint-translation/ +[Interval Queries in SQL Server]:http://www.itprotoday.com/software-development/interval-queries-sql-server +[Query Trace Column Values]:https://www.sqlshack.com/query-trace-column-values/ +[Concurrency Week: How to Delete Just Some Rows from a Really Big Table]:https://www.brentozar.com/archive/2018/04/how-to-delete-just-some-rows-from-a-really-big-table/ +[Break large delete operations into chunks]:https://sqlperformance.com/2013/03/io-subsystem/chunk-deletes +[How to perform a page level restore in SQL Server]:https://www.sqlshack.com/how-to-perform-a-page-level-restore-in-sql-server/ +[Grouping dates without blocking operators]:https://sqlsunday.com/2018/05/14/grouping-dates-without-blocking-operators/ +[What’s CHECKDB doing in my database restore?]:http://www.mikefal.net/2018/04/10/whats-checkdb-doing-in-my-database-restore/ +[How To Hide An Instance Of SQL Server]:https://thomaslarock.com/2018/04/how-to-hide-an-instance-of-sql-server/ +[Troubleshooting Parameter Sniffing Issues the Right Way: Part 1]:https://www.brentozar.com/archive/2018/03/troubleshooting-parameter-sniffing-issues-the-right-way-part-1/ +[Troubleshooting Parameter Sniffing Issues the Right Way: Part 2]:https://www.brentozar.com/archive/2018/03/troubleshooting-parameter-sniffing-issues-right-way-part-2/ +[Troubleshooting Parameter Sniffing Issues the Right Way: Part 3]:https://www.brentozar.com/archive/2018/03/troubleshooting-parameter-sniffing-issues-the-right-way-part-3/ +[When to use the SELECT…INTO statement]:https://www.red-gate.com/hub/product-learning/sql-prompt/use-selectinto-statement +[Temp Tables In SSIS]:https://www.timmitchell.net/post/2018/05/29/temp-tables-in-ssis/ +[Changing the Collation of the Instance, the Databases, and All Columns in All User Databases]:https://sqlquantumleap.com/2018/06/11/changing-the-collation-of-the-instance-and-all-columns-across-all-user-databases-what-could-possibly-go-wrong/ +[10 Cool SQL Optimisations That do not Depend on the Cost Model]:https://blog.jooq.org/2017/09/28/10-cool-sql-optimisations-that-do-not-depend-on-the-cost-model/ +[Scheduling powershell tasks with sql agent]:https://dbatools.io/agent/ +[Three ways to track logins using dbatools]:https://dbatools.io/track-logins/ +[Impact of Fragmentation on Execution Plans]:https://sqlperformance.com/2017/12/sql-indexes/impact-fragmentation-plans +[How to “debug” a Linked Server from SQL Server to an Oracle Database instance]:https://www.sqlshack.com/how-to-debug-a-linked-server-from-sql-server-to-an-oracle-database-instance/ +[How to implement error handling in SQL Server]:https://www.sqlshack.com/how-to-implement-error-handling-in-sql-server/ +[SQL Server Closure Tables]:https://www.red-gate.com/simple-talk/sql/t-sql-programming/sql-server-closure-tables/ +[Deadlock victim choice in SQL Server - an exception?]:http://joshthecoder.com/2018/05/10/deadlock-victim-choice-an-exception.html +[Azure and Windows PowerShell: The Basics]:https://www.red-gate.com/simple-talk/sysadmin/powershell/azure-windows-powershell-basics/ +[Azure and Windows PowerShell: Getting Information]:https://www.red-gate.com/simple-talk/sysadmin/powershell/azure-and-windows-powershell-getting-information/ +[Be our guest, be our guest, put our database to the test]:https://sqlstudies.com/2018/06/25/be-our-guest-be-our-guest-put-our-database-to-the-test/ +[Finding code smells using SQL Prompt: the SET NOCOUNT problem (PE008 and PE009)]:https://www.red-gate.com/hub/product-learning/sql-prompt/finding-code-smells-using-sql-prompt-set-nocount-problem-pe008-pe009 +[DATABASES 101 guide for the non-technical professional]:https://thomaslarock.com/2018/07/databases-101/ +[Understanding your Azure EA Billing Data and Building a Centralized Data Storage Solution]:https://www.red-gate.com/simple-talk/cloud/cloud-data/understanding-your-azure-ea-billing-data-and-building-a-centralized-data-storage-solution/ +[READ COMMITTED SNAPSHOT ISOLATION and High version_ghost_record_count]:https://www.red-gate.com/simple-talk/sql/performance/read-committed-snapshot-isolation-high-version_ghost_record_count/ +[In-Memory OLTP Indexes – Part 1: Recommendations.]:https://blogs.msdn.microsoft.com/sqlserverstorageengine/2017/11/02/in-memory-oltp-indexes-part-1-recommendations/ +[In-Memory OLTP Indexes – Part 2: Performance Troubleshooting Guide.]:https://blogs.msdn.microsoft.com/sqlserverstorageengine/2017/11/14/in-memory-oltp-indexes-part-2-performance-troubleshooting-guide/ +[Optimization Thresholds – Grouping and Aggregating Data, Part 1]:https://sqlperformance.com/2018/04/sql-plan/grouping-and-aggregating-part-1 +[Optimization Thresholds – Grouping and Aggregating Data, Part 2]:https://sqlperformance.com/2018/05/sql-plan/grouping-and-aggregating-part-2 +[Optimization Thresholds – Grouping and Aggregating Data, Part 3]:https://sqlperformance.com/2018/06/sql-plan/grouping-and-aggregating-part-3 +[Optimization Thresholds – Grouping and Aggregating Data, Part 4]:https://sqlperformance.com/2018/07/sql-performance/grouping-and-aggregating-part-4 +[Optimization Thresholds – Grouping and Aggregating Data, Part 5]:https://sqlperformance.com/2018/08/sql-performance/grouping-and-aggregating-part-5 +[When DBCC OpenTran doesn’t list all open transactions]:https://blogs.msdn.microsoft.com/mosharaf/2013/02/17/when-dbcc-opentran-doesnt-list-all-open-transactions/ +[How I spot not-yet-documented features in SQL Server CTPs]:https://blogs.sentryone.com/aaronbertrand/fishing-for-features-in-ctps/ +[More ways to discover changes in new versions of SQL Server]:https://blogs.sentryone.com/aaronbertrand/more-changes-sql-server/ +[Tail-Log Backup and Restore in SQL Server]:https://www.sqlshack.com/tail-log-backup-and-restore-in-sql-server/ +[Database Filegroup(s) and Piecemeal restores in SQL Server]:https://www.sqlshack.com/database-filegroups-and-piecemeal-restores-in-sql-server/ +[Updating Statistics with Ola Hallengren’s Script]:https://www.sqlskills.com/blogs/erin/updating-statistics-with-ola-hallengrens-script/ +[Interview questions on SQL Server database backups, restores and recovery – Part I]:https://www.sqlshack.com/interview-questions-on-sql-server-database-backups-restores-and-recovery-part-i/ +[Interview questions on SQL Server database backups, restores and recovery – Part II]:https://www.sqlshack.com/interview-questions-on-sql-server-database-backups-restores-and-recovery-part-ii/ +[Interview questions on SQL Server database backups, restores and recovery – Part III]:https://www.sqlshack.com/interview-questions-on-sql-server-database-backups-restores-and-recovery-part-iii/ +[Can Rowstore Compression Beat Columnstore Compression?]:https://orderbyselectnull.com/2018/06/28/can-rowstore-compression-beat-columnstore-compression/ +[Inside the Storage Engine: Anatomy of a record]:https://www.sqlskills.com/blogs/paul/inside-the-storage-engine-anatomy-of-a-record/ +[Inside the Storage Engine: Anatomy of an extent]:https://www.sqlskills.com/blogs/paul/inside-the-storage-engine-anatomy-of-an-extent/ +[Inside the Storage Engine: Anatomy of a page]:https://www.sqlskills.com/blogs/paul/inside-the-storage-engine-anatomy-of-a-page/ +[Inside the Storage Engine: IAM pages, IAM chains, and allocation units]:https://www.sqlskills.com/blogs/paul/inside-the-storage-engine-iam-pages-iam-chains-and-allocation-units/ +[Inside The Storage Engine: GAM, SGAM, PFS and other allocation maps]:https://www.sqlskills.com/blogs/paul/inside-the-storage-engine-gam-sgam-pfs-and-other-allocation-maps/ +[Disaster recovery 101: fixing a broken boot page]:https://www.sqlskills.com/blogs/paul/disaster-recovery-101-fixing-a-broken-boot-page/ +[How to download a sqlservr.pdb symbol file]:https://www.sqlskills.com/blogs/paul/how-to-download-a-sqlservr-pdb-symbol-file/ +[A cause of high-duration ASYNC_IO_COMPLETION waits]:https://www.sqlskills.com/blogs/paul/cause-high-duration-async_io_completion-waits/ +[How to solve the Identity Crisis in SQL Server]:https://www.sqlshack.com/solve-identity-crisis-sql-server/ +[Azure SQL Database Performance and Service Tiers Explained]:https://sqlperformance.com/2018/08/sql-performance/azure-sql-database-tiers +[What To Do When Wait Stats Don’t 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+[Storage performance best practices and considerations for Azure SQL DB Managed Instance (General Purpose)]:https://blogs.msdn.microsoft.com/sqlcat/2018/07/20/storage-performance-best-practices-and-considerations-for-azure-sql-db-managed-instance-general-purpose/ +[T-SQL Tuesday #017: APPLY: It Slices! 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It Does It All!]:http://bradsruminations.blogspot.com/2011/04/t-sql-tuesday-017-it-slices-it-dices-it.html +[SQL Server Encryption, What’s The Key Hierarchy All About?]:https://sqlundercover.com/2018/08/09/sql-server-encryption-whats-the-key-hierarchy-all-about/ +[Overview of the SQLCMD utility in SQL Server]:https://www.sqlshack.com/overview-of-the-sqlcmd-utility-in-sql-server/ +[The BCP (Bulk Copy Program) command in action]:https://www.sqlshack.com/bcp-bulk-copy-program-command-in-action/ +[Measuring Query Execution Time]:https://www.scarydba.com/2018/08/13/measuring-query-execution-time/ +[How to Check Performance on a New SQL Server]:https://www.brentozar.com/archive/2018/08/how-to-check-performance-on-a-new-sql-server/ +[Questions About Kerberos and SQL Server That You Were Too Shy to Ask]:https://www.red-gate.com/simple-talk/sql/database-administration/questions-about-kerberos-and-sql-server-that-you-were-too-shy-to-ask/ +[SQL Server Execution Plans overview]:https://www.sqlshack.com/sql-server-execution-plans-overview/ +[SQL Server Execution Plans types]:https://www.sqlshack.com/sql-server-execution-plans-types/ +[How to Analyze SQL Execution Plan Graphical Components]:https://www.sqlshack.com/how-to-analyze-sql-execution-plan-graphical-components/ +[Query optimization techniques in SQL Server: the basics]:https://www.sqlshack.com/query-optimization-techniques-in-sql-server-the-basics/ +[Query optimization techniques in SQL Server: tips and tricks]:https://www.sqlshack.com/query-optimization-techniques-in-sql-server-tips-and-tricks/ +[Query optimization techniques in SQL Server: Database Design and Architecture]:https://www.sqlshack.com/query-optimization-techniques-in-sql-server-database-design-and-architecture/ +[SQL Query Optimization Techniques in SQL Server: Parameter Sniffing]:https://www.sqlshack.com/query-optimization-techniques-in-sql-server-parameter-sniffing/ +[Similarities and Differences among RANK, DENSE_RANK and 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Installation]:https://sqlplayer.net/2018/12/preparation-for-sql-server-installation/ +[Executing xp_cmdshell with Non SysAdmin Account]:http://www.lucasnotes.com/2019/01/executing-xpcmdshell-with-non-sysadmin.html +[Generating SQL using Biml (T-SQL Tuesday #110)]:https://www.cathrinewilhelmsen.net/2019/01/08/generating-sql-using-biml/ +[Avoiding SQL Server Upgrade Performance Issues]:https://www.sqlskills.com/blogs/glenn/avoiding-sql-server-upgrade-performance-issues/ diff --git a/Articles/Slow in the Application, Fast in SSMS.htm b/Articles/Slow in the Application, Fast in SSMS.htm deleted file mode 100644 index cff3c823..00000000 --- a/Articles/Slow in the Application, Fast in SSMS.htm +++ /dev/null @@ -1,2428 +0,0 @@ - - - - - -Slow in the Application, Fast in SSMS? - - -

Slow in the Application, Fast in SSMS?
Understanding Performance Mysteries

-

An SQL text by Erland Sommarskog, SQL Server MVP. Last revision: 2013-08-30.
-This article is also available in Russian, translated by Dima Piliugin.

- -

Introduction

-

When I read various forums about SQL Server, I frequently see questions from -deeply mystified -posters. They have identified a slow query or stored procedure -in their application. They cull the SQL batch from the application and run it in SQL Server -Management Studio (SSMS) to analyse it, only to find that the -response is instantaneous. At this point -they are inclined to think that SQL Server is all about -magic. A similar mystery is when a developer has extracted a query in his stored -procedure to run it stand-alone only to find that it runs much faster – or much -slower – than inside the procedure.

-

No, SQL Server is not about magic. But if you don't have a good understanding -of how SQL Server compiles queries and maintains its plan cache, it may seem so. -Furthermore there are some unfortunate combinations of different defaults in -different environments. In this article, I will try to straighten out why you get this seemingly inconsistent behaviour. -I explain how SQL Server compiles a stored procedure, what parameter sniffing -is and why it is part of the equation in the vast majority of these confusing -situations. I explain how SQL Server uses the cache, and why there may be -multiple entries for a procedure in the cache. Once you have come this far, you -will understand how come the query runs so much faster in SSMS.

-

To understand how to address that performance problem in your application, you -need to read on. I first make a short break from the theme of parameter sniffing -to discuss a few situations where there are other reasons for the difference in -performance. This is followed by two chapters how to deal with -performance problems where parameter sniffing is involved. The first is about -gathering information. In the second chapter I discuss some scenarios -– both real-world situations and more generic ones – and possible solutions. In the last chapter I discuss how dynamic SQL -is compiled and interacts with the plan cache and why there are more reasons you -may experience differences in performance between SSMS and the application with -dynamic SQL. At the end there is a -section with links to Microsoft white papers and similar documents in this area.

-

Table of Contents

-

- -   Introduction
-      Presumptions
-   How SQL Server Compiles a Stored Procedure
-      What is a Stored Procedure?
-      How SQL Server Generates the Query Plan
-      Putting the Query Plan into the Cache
-      Different Plans for Different Settings
-      The Default Settings
-      The Effects of Statement Recompile
-      The Story So Far
-   It's Not Always Parameter Sniffing...
-      Replacing Variables and Parameters
-      Blocking
-      Indexed Views and Indexed Computed Columns
-      An Issue with Linked Servers
-   Getting Information to Solve Parameter Sniffing Problems
-      Getting the Necessary Facts
-      Which is the Slow Statement?
-      Getting the Query Plans and Parameters with Management Studio
-      Getting the Query Plans and Parameters Directly from the Plan Cache
-      Getting Query Plans and Parameters from a Trace
-      Getting Table and Index Definitions
-      Finding Information About Statistics
-   Examples of How to Fix Parameter-Sniffing Issues
-      A Non-Solution
-      Best Index Depends on Input
-      Dynamic Search Conditions
-      Reviewing Indexing
-      The Case of the Application Cache
-      Fixing Bad SQL
-   How SQL Server Compiles Dynamic SQL
-      What Is Dynamic SQL?
-      Generating the Plan for Dynamic SQL
-      Dynamic SQL and the Plan Cache
-      Running Application Queries in SSMS
-      Addressing Parameter-sniffing Problems in Dynamic SQL
-      Plan Guides and Plan Freezing
-   Further Reading
-   Revisions
- -

-

Presumptions

-

The essence of this article applies to all versions of SQL Server, but the focus is on SQL 2005 and later versions. -The article includes several queries to inspect the plan cache; these queries run only on SQL 2005 and later. SQL 2000 and earlier versions had far less instrumentation in this regard. -Beware that to run these queries you need to have the server-level permission -VIEW SERVER STATE.

-

For the examples in this article I use the Northwind sample database. This -database shipped with SQL 2000. For later versions of SQL Server you can -download it from - - Microsoft's web site.

-

This is not a beginner-level article, but I assume that the reader has a -working experience of SQL programming. You don't need to have any prior experience of -performance tuning, but it certainly helps if you helps if you have looked a -little at query plans and if you have some basic knowledge of indexes. I will -not explain the basics in depth, as my focus a little beyond that point. This article will not -teach you everything about performance -tuning, but at least it will be a start.

-

Caveat: In some places I give links to the online version of Books Online. Beware that the URL may lead to Books Online for a -different version of SQL -Server than you are using. On the topic pages, there is a link Other versions, so that you easily can go to -the page that matches the version of SQL Server -you are using. (Or at least that was how Books Online on MSDN was organised when I wrote this article.)

-

How SQL Server Compiles a Stored Procedure

-

In this chapter we will look at how SQL Server compiles a stored procedure -and uses the plan cache. If your application does not use stored procedures, but -submits SQL statements directly, most of what I say this chapter is still applicable. But there are further -complications with dynamic SQL, and since the facts about stored procedures are confusing enough I have deferred the discussion on dynamic -SQL to the last chapter.

-

What is a Stored Procedure?

-

That may seem like a silly question, but the question I am getting at is What objects -have query plans on their own? SQL -Server builds query plans for these types of objects:

- -

With a more general and stringent terminology I should talk about modules, -but since stored procedures is by far the most widely used type of module, I prefer to -talk about stored procedures to keep it simple.

-

For other types of objects than the four listed above, SQL Server does not build query plans. -Specifically, SQL Server does not create query plans for views and inline-table -functions. Queries like:

-
SELECT abc, def FROM myview
-SELECT a, b, c FROM mytablefunc(9)
-

are no different from ad-hoc queries that access the tables directly. When -compiling the query, SQL Server expands the view/function into the query, and -the optimizer works with the expanded query text.

-

There is one more thing we need to understand about what constitutes a stored -procedure. Say that you have two procedures, where the -outer calls the inner one:

-
CREATE PROCECURE Outer_sp AS
-...
-EXEC Inner_sp
-...
-

I would guess most people think of Inner_sp as being independent from Outer_sp, -and indeed it is. The execution plan for Outer_sp does not include the -query plan for Inner_sp, only the invocation of it. However, there is a very similar situation where -I've noticed that posters on SQL forums often have a -different mental image, to wit dynamic SQL:

-
CREATE PROCEDURE Some_sp AS
-DECLARE @sql    nvarchar(MAX),
-        @params nvarchar(MAX)
-SELECT @sql = 'SELECT ...'
-...
-EXEC sp_executesql @sql, @params, @par1, ...
-

It is important to understand that this is no different from nested stored procedures. The generated -SQL string is not -part of Some_sp, nor does it appear anywhere in the query plan for Some_sp, but it has a -query plan and a cache entry of its own. This applies, no matter if the dynamic -SQL is executed through EXEC() or sp_executesql.

-

How SQL Server Generates the Query Plan

-

Overview

-

When you enter a stored procedure with CREATE PROCEDURE (or CREATE FUNCTION -for a function or CREATE TRIGGER for a trigger), SQL Server verifies that the -code is syntactically correct, and also checks that you do not refer to -non-existing columns. (But if you refer to non-existing tables, it lets get you -away with it, due to a misfeature known as deferred named resolution.) However, -at this point SQL Server does not build any query plan, but merely stores -the query text in the database.

-

It is not until a user executes the procedure, that SQL Server creates the -plan. For each query, SQL Server looks at the distribution statistics it -has collected about the data in the tables in the query. From -this, it makes an estimate what is best way to execute the query. This -phase is known as optimisation. While the procedure is compiled in one go, -each query is optimised on its own, and there is no attempt to analyse the flow -of execution. This has a very important ramification: the optimizer has no idea -about the run-time values of variables. However, it does know what values -the user specified for the parameters to the procedure.

-

Parameters and Variables

-

Consider the Orders -table in the Northwind database, and these three procedures:

-
CREATE PROCEDURE List_orders_1 AS
-   SELECT * FROM Orders WHERE OrderDate > '20000101'
-go
-CREATE PROCEDURE List_orders_2 @fromdate datetime AS
-   SELECT * FROM Orders WHERE OrderDate > @fromdate
-go
-CREATE PROCEDURE List_orders_3 @fromdate datetime AS
-   DECLARE @fromdate_copy datetime
-   SELECT @fromdate_copy = @fromdate
-   SELECT * FROM Orders WHERE OrderDate > @fromdate_copy
-go
-

Note: Using SELECT * in production code is bad practice. -I use it in this article to keep the examples concise.

-

Then we execute the procedures in this way:

-
EXEC List_orders_1
-EXEC List_orders_2 '20000101'
-EXEC List_orders_3 '20000101'
-

-Before you run the procedures, enable Include Actual Execution Plan under -the Query menu. (There is also a toolbar button for it, as well as a -keyboard shortcut: Ctrl-M for the "Standard" keyboard, or Ctrl-K if you -are like me and use -the SQL 2000 keyboard.) -If you look at the query plans for the procedures, you will see the -first two procedures have identical plans:

-

-Index seek + Key lookup

-

-That is, SQL Server seeks the index on OrderDate, and uses a key lookup to -get the other data. The plan for the third execution is different:

-

Clustered Index Scan

-

-In this case, SQL Server scans the table. (Keep in mind that in a -clustered index the leaf pages contains the data, so a clustered index scan and -a table scan is the same the thing.) Why this difference? To understand why the optimizer makes certain decisions, it is always a good idea to look at what -estimates it is working with. If you hover with the mouse over of the two Seek operators and the Scan operator, you will see the pop-ups below.

- - - - - - - - - - - - - - - - -
-Popup list_orders_1 -    -Popup list_orders_2 -
List_orders_1   List_orders_2
-Popup list_orders_3 -
List_orders_3
-

The interesting element is Estimated Number of Rows. For the first two procedures, SQL Server estimates that one row will be returned, but for -List_orders_3, the estimate is 249 rows. This difference in estimates explains the different choice of plans. Index Seek + Key Lookup is a good strategy to return a -smaller amount of rows from a table. But as more rows that match the seek -criteria, the cost increases, and there is a increased likelihood that SQL -Server will need to access the same data page more than once. In the extreme case where all rows -are returned, a table scan is much more efficient than seek and lookup. With a -scan, -SQL Server has to read every data page exactly once, whereas with -seek + key lookup, every page will be visited once for each row on the page. The Orders table in Northwind has 830 rows, and when SQL Server estimates that as many -as 249 rows will be returned, it (rightly) concludes that the scan is the best choice.

-

Where Do These Estimates Come From?

-

Now we know why the optimizer arrives at different execution plans: because the estimates are different. But that only leads to the next question: why -are the estimates different? That is the key topic of this article.

-

In the first procedure, the date is a constant, which means that the SQL Server only needs to consider exactly this case. It interrogates the statistics for the -Orders table, which indicates that there are no rows with an OrderDate in the -third millennium. (All orders in the Northwind database are from 1996 to 1998.) -Since statistics are statistics, SQL Server cannot be sure that -the query will return no rows at all, why it makes an estimate of one single row.

-

In case of List_orders_2, the query is against a variable, or more precisely a parameter. When performing the optimisation, SQL Server knows that the -procedure was invoked with the value 2000-01-01. Since it does not any perform flow analysis, it can't say -for sure whether the parameter will have this value when the query is executed. -Nevertheless, it uses the input value to come up -with an estimate, which is the same as for List_orders_1: one single row. This strategy of looking at the values of the input -parameters when optimising a stored procedure is known as parameter sniffing.

-

-In the last procedure, it's all different. The input value is copied to a -local variable, but when SQL Server builds the plan, it has no understanding of -this and says to itself I don't know what the value this variable will -be. -Because of this, it applies a standard assumption, which for an inequality -operation such as > is a 30 % hit-rate. 30 % of 830 is indeed 249.

-

Here is a variation of the theme:

-
CREATE PROCEDURE List_orders_4 @fromdate datetime = NULL AS
-   IF @fromdate IS NULL
-      SELECT @fromdate = '19900101'
-   SELECT * FROM Orders WHERE OrderDate > @fromdate
-

In this procedure, the parameter is optional, and if the user does not fill -in the parameter, all orders are listed. Say that the user invokes the procedure -as:

-
EXEC List_orders_4
-

The execution plan is identical to the plan for List_orders_1 and List_orders_2. That is, Index Seek + Key Lookup, despite -that all orders are returned. If you -look at the pop-up for the Index Seek operator, you will see that it is identical to the pop-up for List_orders_2 but in one regard, the actual number of rows. -When compiling the procedure, SQL Server -does not know that the value of @fromdate changes, but compiles the procedure -under the assumption that @fromdate has the value NULL. Since all comparisons with NULL yield -UNKNOWN, the query cannot return any rows at all, if @fromdate still -has this value at run-time. If SQL Server would take the input value as the final -truth, it could construct a plan with only a Constant Scan that does not access the table at all (run the query SELECT * FROM Orders WHERE OrderDate > -NULL to see an example of this). But SQL Server must generate a plan which -returns the correct result no matter what value @fromdate has at run-time. On -the other hand, there is no obligation to build a plan which is the best for all -values. Thus, since the assumption is that -no rows will be returned, SQL Server settles for the Index Seek. (The estimate is still that one row will be returned. This is -because SQL Server never uses an estimate of 0 rows.)

-

This is an example of when parameter sniffing backfires, and in this -particular case it may be better to write the procedure in this way:

-
CREATE PROCEDURE List_orders_5 @fromdate datetime = NULL AS
-   DECLARE @fromdate_copy datetime
-   SELECT @fromdate_copy  = coalesce(@fromdate, '19900101')
-   SELECT * FROM Orders WHERE OrderDate > @fromdate_copy
-

With List_orders_5 you always get a Clustered Index -Scan.

-

Key Points

-

In this section, we have learned three very important things:

- -

And there is a corollary of this: if you take out a query from a stored -procedure and replace variables and parameters with constants, -you now have quite a different query. More about this later.

-

Putting the Query Plan into the Cache

-

If SQL Server would compile a stored procedure – that is optimise and build a query plan – every time the procedure is executed, there is a big risk that SQL Server would -crumble from all the CPU resources it would take. I immediately need to qualify -this, because it is not true for all systems. In a big data warehouse where a -handful of business analysts runs complicated queries that take a minute on -average to -execute, there would be no damage if there was compilation every time – rather it -could be beneficial. But in an OLTP database where plenty of users run stored -procedures with short and simple queries, this concern is very much for real.

-

For this reason, SQL Server caches the query plan for a stored procedure, so -when the next user runs the procedure, the compilation phase can be skipped, and -execution can commence directly. The plan will stay in the cache, until some -event forces the plan out of the cache. Examples of such events are:

- -

If such an event occurs, a new query plan will be created the next time the -procedure is executed. SQL Server will anew "sniff" the input parameters, and -if the parameter values are different this time, the query plan may be -different from the previous plan.

-

There are other events that do not cause the entire procedure plan to be -evicted from the cache, but which trigger recompilation of one or more individual -statements in the procedure. The recompilation occurs the next time the -statement is executed. This applies even if the event occurred after the procedure started executing. -Here are examples of such events:

- -

Note: In SQL Server 2000, there is no statement recompilation, but the -entire procedure is always recompiled.

-

These lists are by no means exhaustive, but you should observe one thing which is -not there: executing the procedure with different values for the input -parameters from the original execution. That is, if the second invocation of -List_orders_2 is:

-
EXEC List_orders_2 '19900101'
-

The execution will still use the index on OrderDate, despite the query now -retrieves all orders. This leads to a very important observation: the parameter -values of the first execution of the procedure have a huge impact for -subsequent executions. If this first set of values for some reason is atypical, -the cached plan may not be optimal for future executions. This is why parameter sniffing is such a big deal.

-

Note: for a complete list of what can cause plans to be -flushed or statements to be recompiled, see the white paper on Plan Caching listed in -the Further Reading section.

-

Different Plans for Different Settings

-

There is a plan for the procedure in the cache. That means that everyone can use it, or? No, in this section we will learn that there can be multiple -plans for the same procedure in the cache. To understand this, let's consider this contrived example:

-
CREATE PROCEDURE List_orders_6 AS
-   SELECT *
-   FROM   Orders
-   WHERE  OrderDate > '12/01/1998'
-go
-SET DATEFORMAT dmy
-go
-EXEC List_orders_6
-go
-SET DATEFORMAT mdy
-go
-EXEC List_orders_6
-go
-

If you run this, you will notice that the first execution returns many -orders, whereas the second execution returns no orders. And if you look at the execution -plans, you will see that they are different as well. For the first execution, the plan is a -Clustered Index Scan (which is the best choice with so many rows returned), whereas the second execution plan uses Index Seek with Key Lookup (which is the -best when no rows are returned).

-

How could this happen? Did SET -DATEFORMAT cause recompilation? No, that would not be smart. In this example, the executions come one after each other, but they could just as well be submitted -in parallel by different users with different settings for the date format. Keep in mind that the entry -for a stored procedure in the plan cache is not tied to a certain session or -user, but it is global to all connected users.

-

Instead the answer is that SQL Server creates a second cache entry for the second -execution of the procedure. -We can see this if we peek into the plan cache with this query:

-
SELECT qs.plan_handle, a.attrlist
-FROM   sys.dm_exec_query_stats qs
-CROSS  APPLY sys.dm_exec_sql_text(qs.sql_handle) est
-CROSS  APPLY (SELECT epa.attribute + '=' + convert(nvarchar(127), epa.value) + '   '
-              FROM   sys.dm_exec_plan_attributes(qs.plan_handle) epa
-              WHERE  epa.is_cache_key = 1
-              ORDER  BY epa.attribute
-              FOR    XML PATH('')) AS a(attrlist)
-WHERE  est.objectid = object_id ('dbo.List_orders_6')
-  AND  est.dbid     = db_id('Northwind')
-

Note: You need the -server-level permission VIEW SERVER STATE to run queries -against the plan cache.

-

Note: The queries against the plan cache -in this article do not run on SQL 2000.

-

The DMV (Dynamic Management View) -sys.dm_exec_query_stats has one entry for each query currently in the plan -cache. If a procedure has multiple statements, there is one row per statement. -Of interest here is sql_handle and plan_handle. I use -sql_handle to determine which procedure the cache entry relates to (later we -will see examples where we also retrieve the query text) so that we can filter -out -all other entries in the cache. Most often you use plan_handle to -retrieve the query plan itself, and we will see an example of this later, but in this query I access a DMV that returns -the attributes of the query plan. More specifically, I return the attributes that -are cache keys. When there is more than entry in the cache for the same procedure, the entries have at least one difference in the cache keys. A cache key is a run-time setting, which for one reason -or another calls for a different query plan. Most of these settings are controlled -with a SET command, but not all.

-

The query above returns two rows, indicating that there are two entries for the -procedure in the cache. The output may look like this:

-
plan_handle                                          attrlist
----------------------------------------------------- --------------------------------------------------------
-0x0500070064EFCA5DB8A0A905000000000000000000000000   compat_level=100   date_first=7   date_format=1
-                                                     set_options=4347   user_id=1
-0x0500070064EFCA5DB8A0A805000000000000000000000000   compat_level=100   date_first=7   date_format=2
-                                                     set_options=4347   user_id=1
-

To save space, I have deleted many of the values in the attrlist column -and I have also folded the column into two lines. If you run the query yourself, you can see the complete list -of cache keys, and they are quite a few. If you look up the topic for - -sys.dm_exec_plan_attributes in Books Online, you will see description -for many of the plan attributes, but you will also note that far from all cache -keys are documented. In this article I will not dive into all cache keys, not -even the documented ones, but focus on the most important ones.

-

As I said, the example is contrived, but it gives a good illustration to -why the query plans must be different: different date formats may yield -different results. A somewhat more normal example is this:

-
EXEC sp_recompile List_orders_2
-go
-SET DATEFORMAT dmy
-go
-EXEC List_orders_2 '12/01/1998'
-go
-SET DATEFORMAT mdy
-go
-EXEC List_orders_2 '12/01/1998'
-go
-

(The initial sp_recompile is to make sure that the plan from the -previous example is flushed.) This example yields the same results and the same -plans as with List_orders_6 above. That is, the two query plans uses the actual parameter value -when the respective plan is built. The first query uses 12 Jan 1998, and the -second 1 Dec 1998.

-

A very important cache key is set_options. This is a bit mask that gives the setting of a number of SET options that can be ON or OFF. If -you look further in the topic of sys.dm_exec_plan_attributes, you find a -listing that details which SET option each bit describes. (You -will also see that there are a few more items that are not controlled by the SET -command.) Thus, if two -connections have any of these options set differently, the connections will -use different cache entries for the same procedure – and therefore they could be using different query plans, with possibly big difference in performance.

-

One way to translate the set_options attribute is to run this query:

-
SELECT convert(binary(4), 4347)
-

This tells us that the hex value for 4347 is 0x10FB. Then we can look in Books -Online and follow the table to find out that the following SET options are in -force: ANSI_PADDING, Parallel Plan, CONCAT_NULL_YIELDS_NULL, ANSI_WARNINGS, ANSI_NULLS, -QUOTED_IDENTIFIER, ANSI_NULL_DFLT_ON and ARITHABORT.

-

You can also use this table-valued function that I have written and run:

-
SELECT Set_option FROM setoptions (4347) ORDER BY Set_option
-

Note: You may be wondering what Parallel Plan is doing here, not the least since the plan in the example is not parallel. When SQL -Server builds a parallel plan for a query, it may later also build a non-parallel plan if the CPU load in the server is such that it is not defensible to run a -parallel plan. It seems that for a plan that is always serial that the bit for parallel plan is nevertheless -set in set_options.

-

To simplify the discussion, we can say that each of these SET options – ANSI_PADDING, ANSI_NULLS etc – -is a cache key on its own. The fact that they are -added together in a singular numeric value is just a matter of packaging.

-

The Default Settings

-

About all of the SET ON/OFF options that are cache keys exist because of legacy reasons. Originally, in the -dim and distant past, SQL Server included a number of behaviours that violated -the ANSI standard for SQL. With SQL Server 6.5, Microsoft introduced all these SET options -(save for ARITHABORT, which was in the product already in 4.x), to permit users to use -SQL Server in an ANSI-compliant way. In SQL 6.5, you had to use the -SET options explicitly to get ANSI-compliant behaviour, but with SQL 7, Microsoft changed -the defaults for clients that used the new versions of the ODBC and OLE DB APIs. -The SET options still remained to provide backwards compatibility for older -clients.

-

Note: In case what you are curious what is the impact of these SET options, I refer -you to Books Online. Some of them are fairly straight-forward to explain, -whereas others are just too confusing. To understand this article, you only -need to understand that they exist, and what impact they have on the plan cache.

-

Alas, Microsoft did not change the defaults with full consistency, and -even today the defaults depend on how you connect, as detailed in the table -below.

- - - - - - - - - - - - - - - - -
Applications using
ADO .Net, ODBC or OLE DB		SSMS, -
Query Analyzer		SQLCMD,
- OSQL, BCP,
SQL Server Agent - 		ISQL,
DB-Library
ANSI_NULL_DFLT_ONONONONOFF
ANSI_NULLSONONONOFF
ANSI_PADDINGONONONOFF
ANSI_WARNINGSONONONOFF
CONACT_NULLS_YIELD_NULLONONONOFF
QUOTED_IDENTIFIERONON - OFFOFF
ARITHABORTOFFONOFFOFF
-

You might see where this is getting at. Your application connects with -ARITHABORT OFF, but when you run the query in SSMS, ARITHABORT is ON and thus -you will not reuse the cache entry that the application uses, but SQL Server -will compile the procedure anew, sniffing your current parameter values, and you may get a different plan than from the application. -So there you have a likely answer to the initial question of this article. There -are a few more possibilities that we will look into in the next chapter, but the -by far most common reason for slow in the application, fast in SSMS in -SQL 2005 and later is parameter sniffing and the different defaults for -ARITHABORT. (If that was all you wanted to know, you can stop reading. If you -want to fix your performance problem – hang on!)

-

Beside the SET command and the defaults above, ALTER DATABASE permits you to - say that a certain SET option always should be ON in a database and thus - override the default set by the API. However, while the syntax may indicate so, - you cannot specify than an option should be OFF this way. Also, beware that if - you test these options from Management Studio, they may not seem to work, since - SSMS submits explicit SET commands. There is also a - server-level setting for the same purpose, the configuration option user - options which is a bit mask. You can set the individual bits in the - mask from the Connection pages of the Server - Properties in Management Studio. Overall, I recommend against controlling - the defaults this way, as in my opinion they mainly serve to increase the -confusion.

-

It is not always the run-time setting of an option that applies. When you create a procedure, view, table etc, the settings -for ANSI_NULLS -and QUOTED_IDENTIFIER, are saved with the object. That is, if you run this:

-
SET ANSI_NULLS, QUOTED_IDENTIFIER OFF
-go
-CREATE PROCEDURE stupid @x int AS
-IF @x = NULL PRINT "@x is NULL"
-go
-SET ANSI_NULLS, QUOTED_IDENTIFIER ON
-go
-EXEC stupid NULL
-

It will print

-
@x is NULL
-

(When QUOTED_IDENTIFIER is OFF, double quote(") is a string delimiter on equal basis with single quote('). When the -setting is ON, double quotes delimit identifiers in the same way that square -brackets ([]) do and the PRINT statement would yield a compilation -error.)

-

In addition, the setting for ANSI_PADDING is saved per table column -where it is applicable (The data types varchar, nvarchar and varbinary).

-

All these options and different defaults are certainly confusing, but here -are some pieces of advice. First, remember that the first six of these seven -options exist only to -supply backwards compatibility, so there is little reason why you should ever -have any of them OFF. Yes, there are situations when some of them may seem to buy a little more -convenience if they are OFF, but don't fall for that temptation. One complication here, though, -is that the SQL Server tools spew out SET commands for some of these options -when you script objects. Thankfully, they mainly produce SET ON commands that -are harmless. (But I think that when you script a table, scripts may still in -some situations have a SET ANSI_PADDING OFF at the end.)

-

Next, when it comes to ARITHABORT, you should know that in SQL 2005 and later -versions, this setting has zero impact as long as ANSI_WARNINGS is ON. -Thus, there is no reason to turn it on for the sake of the matter. And when it comes to SQL Server -Management Studio, you might want do yourself a favour, and open this dialog and -uncheck SET ARITHABORT as highlighted:

-

-Advanced Query Execution Options

-

This will change your default setting for ARITHABORT when you connect with -SSMS. It will not help you to make your application to run faster, but you will not -at least have to be perplexed by getting different performance in SQL Server -Management Studio.

-

For reference, below is how the ANSI page should look -like. A very strong recommendation: never change anything on this page!

-

-ANSI Query Execution Options

-

When it comes to SQLCMD and OSQL, make the habit to always use the --I option, which causes these tools to run with QUOTED_IDENTIFIER -ON. The corresponding option for BCP is -q. It's a little more difficult in Agent, since there is no way to change the default for Agent – at least I have not found any. Then again, if you only run stored procedures from your job steps, this is not an issue, since the saved setting for stored procedures takes precedence. But if you would run loose batchs of SQL from Agent jobs, you could face the problem with different query plans in the job and SSMS because of the different defaults for QUOTED_IDENTIFER. For such jobs, you should always include the the command SET QUOTED_IDENTIFIER ON as the first command in the job step.

-

We have already looked at SET DATEFORMAT, and there are two more options in - that group: LANGUAGE and DATEFIRST. The default language is configured per user, and there is a - server-wide configuration option which controls what is the default language for - new users. The default language controls the default for the other two. Since - they are cache keys, this means that two users with different default languages -will have different cache entries, and may thus have different query plans.

-

My -recommendation is that you should try avoid to be dependent on language and date settings in SQL Server -altogether. For instance, in as far as you use date literals at all, use a format that -is always interpreted the same, such as YYYYMMDD. (For more details about -date formats, see the article -The ultimate guide -to the datetime datatypes by SQL Server MVP Tibor Karaszi.) If you want -to produce localised output from a stored procedure depending on the user's -preferred language, it may be better to roll your own than rely on the language -setting in SQL Server.

-

The Effects of Statement Recompile

-

To get a complete picture how SQL Server builds the query plan, we need to -study what happens when - -individual statements are recompiled. Above, I mentioned -a few situations where it can happen, but at that point I did not go into -details.

-

The procedure below is certainly contrived, but it serves well to demonstrate -what happens.

-
CREATE PROCEDURE List_orders_7 @fromdate datetime,
-                               @ix       bit AS
-   SELECT @fromdate = dateadd(YEAR, 2, @fromdate)
-   SELECT * FROM  Orders WHERE OrderDate > @fromdate
-   IF @ix = 1 CREATE INDEX test ON Orders(ShipVia)
-   SELECT * FROM  Orders WHERE OrderDate > @fromdate
-go
-EXEC List_orders_7 '19980101', 1
-

When you run this and look at the actual execution plan, you will see that -the plan for the first SELECT is a Clustered Index Scan, which agrees with what we have learnt this far. SQL Server sniffs the value 1998-01-01 and estimates -that the query will return 267 rows which is too many to read with seek + key lookup. What SQL Server does not know is -that the value of @fromdate changes before the -queries are executed. Nevertheless, the plan for the second, identical, query is precisely seek + key lookup and the estimate is that one row is returned. This is because the CREATE INDEX -statement sets a mark that the schema of the Orders table has changed, which -triggers a recompile of the second SELECT statement. When the recompiling the -statement, SQL Server sniffs the value of the parameter which is current at this -point, and thus finds the better plan.

-

Run the procedure again, but with different parameters (note that the date is two years earlier in time):

-
EXEC List_orders_7 '19960101', 0
-

The plans are the same as in the first execution, which is a little more exciting than it may seem at first glance. On this second execution, the first query is -recompiled because of the added index, but this time -the scan is the "correct" plan, since we retrieve about on third of -the orders. However, since the second query is not recompiled now, the second query runs -with the Index Seek from the previous execution, although it is not an efficient -plan this time.

-

Before you continue, clean up:

-
DROP INDEX test ON Orders
-DROP PROCEDURE List_orders_7
-

As I said, this example is contrived. I made it that way, because I wanted a -compact example that is simple to run. In a real-life situation, you may have a procedure -that uses the same parameter in two queries against different tables. The DBA -creates a new index on one of the tables, which causes the query against that -table to be recompiled, whereas the other query is not. The key takeaway here is -that the plans for two statements in a -procedure may have been compiled for different "sniffed" parameter values.

-

When we have seen this, it seems logical that this could be extended to local -variables as well. But this is not the case:

-
CREATE PROCEDURE List_orders_8 AS
-   DECLARE @fromdate datetime
-   SELECT @fromdate = '20000101'
-   SELECT * FROM  Orders WHERE OrderDate > @fromdate
-   CREATE INDEX test ON Orders(ShipVia)
-   SELECT * FROM  Orders WHERE OrderDate > @fromdate
-   DROP INDEX test ON Orders
-go
-EXEC List_orders_8
-go
-DROP PROCEDURE List_orders_8
-

In this example, we get a Clustered Index Scan for both SELECT statements, -despite that the second SELECT is recompiled during execution and the value of -@fromdate is known at this point.

-

However, there is one exception, and that is table variables. Normally SQL -Server estimates that a table variable has a single row, but when there are -recompiles in sway, the estimate may be different:

-
CREATE PROCEDURE List_orders_9 AS
-   DECLARE @ids TABLE (a int NOT NULL PRIMARY KEY)
-   INSERT @ids (a)
-      SELECT OrderID FROM   Orders
-   SELECT COUNT(*)
-   FROM   Orders O
-   WHERE  EXISTS (SELECT *
-                  FROM   @ids i
-                  WHERE  O.OrderID = i.a)
-   CREATE INDEX test ON Orders(ShipVia)
-   SELECT COUNT(*)
-   FROM   Orders O
-   WHERE  EXISTS (SELECT *
-                  FROM   @ids i
-                  WHERE  O.OrderID = i.a)
-DROP INDEX test ON Orders
-go
-EXEC List_orders_9
-go
-DROP PROCEDURE List_orders_9
-

When you run this you will get in total four execution plans. The two of -interest are the second and fourth plans that come from the two identical SELECT COUNT(*) queries. I have -included the interesting parts of the plans here, together with the pop-up for the Clustered Index Scan operator over the table variable.

-

Nested-loops join

-

Merge join

-

In the first plan there is a Nested Loops Join operator together with an -Clustered Index Seek on the Orders table, which is congruent with the estimate -of the number of rows in the table variable: one single row, the standard assumption. In the second query, the -join is carried out with a Merge Join together with a table scan of Orders. As you can see, the estimate for the table variable is now 830 rows, because when recompiling a query, SQL Server -"sniffs" the cardinality of the table variable, even if it is not a parameter.

-

And with some amount of bad luck this can cause issues similar to those with -parameter sniffing. I once ran into a situation where a key procedure in our -system suddenly was slow, and I tracked it down to a statement with a -table variable where the estimated number of rows was 41. Unfortunately, when this -procedure runs in the daily processing it's normally called on one-by-one basis, -so one row was a much better estimate in that case.

-

Speaking of table variables, you may be curious about table-valued -parameters, introduced in SQL 2008. They are handled very similar to table -variables, but since the parameter is populated before the procedure is invoked, -it is now a common situation that SQL Server will use an estimate of more than one row. Here is an example:

-
CREATE TYPE temptype AS TABLE (a int NOT NULL PRIMARY KEY)
-go
-CREATE PROCEDURE List_orders_10 @ids temptype READONLY AS
-   SELECT COUNT(*)
-   FROM   Orders O
-   WHERE  EXISTS (SELECT *
-                  FROM   @ids i
-                  WHERE  O.OrderID = i.a)
-go
-DECLARE @ids temptype
-INSERT @ids (a)
-   SELECT OrderID FROM   Orders
-EXEC List_orders_10 @ids
-go
-DROP PROCEDURE List_orders_10
-DROP TYPE temptype
-

The query plan for this procedure is the same as for the second SELECT query in List_orders_9, that is Merge Join + Clustered Index -Scan of Orders, since SQL Server sees the 830 rows in @ids when the query is -compiled.

-

The Story So Far

-

In this chapter we have looked at how SQL Server compiles a stored procedure and what significance the actual parameter values have -for compilation. We have -seen that SQL Server puts the plan for the procedure into cache, so that the plan can be reused later. We have also seen that there can be more than one entry -for the same stored procedure in the cache. We have seen that there is a large number of different cache keys, so potentially there can be very many plans for a single -stored procedure. But we have also learnt that many of the SET options that are cache keys are legacy options -that you should never change.

-

In practice, the most important SET option is ARITHABORT, because the default for this option is different in an application and in SQL Server Management -Studio. This explains why you can spot a slow query in your application, and then run it at good speed in SSMS. The application uses a plan which was compiled -for -a different set of sniffed parameter values than the actual values, whereas when you run the query in SSMS, it is likely that there is no plan for ARITHABORT -ON -in the cache, so SQL Server will build a plan that fits with your current parameter values.

-

You have also understood that you can verify that this is the case by running -this command in your query window:

-
SET ARITHABORT OFF
-

and with great likelihood, you will now get the slow behaviour of the application -also in SSMS. If this happens, you know that you have a performance problem related to -parameter sniffing. What you may not know yet is how to address this performance problem, and -in the following chapters I will discussion possible solutions, -before I return to the theme of compilation, this time for ad-hoc queries, a.k.a. dynamic SQL.

-

Note: There are always these funny variations. The application I mainly work with actually issues SET ARITHABORT ON when it connects, so we should never see this confusing behaviour in SSMS. Except that we do. Some parts of the application also issues the command SET NO_BROWSETABLE ON on connection. I have never been able to understand the impact of this undocumented SET command, but I seem to recall that it is related to early versions of "classic" ADO. And, yes, this setting is a cache key.

-

It's Not Always Parameter Sniffing...

-

Before we delve into how address performance problems related to parameter -sniffing, which is quite a broad topic, I first like to give some coverage to a -couple of cases where parameter sniffing is not involved, but where you -nevertheless may experience different performance in the application and SSMS.

-

Replacing Variables and Parameters

-

I have already touched at this, but it is worth expanding on a bit.

-

Occasionally, I see people in the forums or the newsgroups that tell me that -their stored procedure is slow, but when they run the same query outside the -procedure it's fast. After a few posts in the thread, the truth is revealed: the -query they are struggling with refer to variables, be that local variables or -parameters. To troubleshoot the query on its own, they have replaced the -variables with constants. But as we have seen, the -resulting stand-alone query is quite different, -and SQL Server can make more accurate estimates with constants instead of -variables, and therefore arrive at a better plan. Furthermore, SQL Server does not have to consider that the constant may -have a different value next time the query is run.

-

A similar mistake is to make the parameters into variables. Say that you have:

-
CREATE PROCEDURE some_sp @par1 int AS
-   ...
-   -- Some query that refers to @par1
-

You want to troubleshoot this query on its own, so you do:

-
DECLARE @par1 int
-SELECT @par1 = 4711
--- query goes here
-

From what you have learnt here, you know that this is very different from when @par1 really is a parameter. SQL Server has no idea about the value for -@par1 when you declare it as a local variable and will make standard assumptions.

-

But if you have a 1000-line stored procedure, and one query is slow, how do -you run it stand-alone with great fidelity, so -that you have the same presumptions as in the stored procedure?

-

One very simple option, but which also is limited, is to add OPTION (RECOMPILE) at the end of the query. This only works on SQL 2005, where this hint causes -the query to be recompiled with the values of all variables – parameters or locally declared -– sniffed and the plan will be compiled under the assumption -that the values could be different next time. That is, the method is only good if the query refers -solely to parameters, and -not to local variables in the procedure. (Because the values of local variables are normally not -sniffed.) Furthermore, the method does not work on SQL 2008 and later, -where the implementation of OPTION (RECOMPILE) is more resaonble: SQL Server compiles the query as if -all variable -values are constants. (Confusingly, this does not apply to all builds -of SQL 2008; for a while Microsoft had to revert back to the old -behaviour because of a critical bug.)

-

What always works is to embed the query in sp_executesql:

-
EXEC sp_executesql N'-- Some query that refers to @par1', N'@par1 int', 4711
-

You will need to double any single quotes in the query to be able to put it in a character literal. If the query refers to local variables, you should assign -them in the block of dynamic SQL.

-

Yet an option is of course to create dummy procedure with the problematic -statement; this saves from doubling any quotes. To avoid litter in the database, you could create a temporary stored -procedure:

-
CREATE PROCEDURE #test @par1 int AS
-   -- query goes here.
-

As with -dynamic SQL, make sure that local variables are locally declared also in your -dummy. I will need to add the caveat I have not investigated whether SQL Server have special tweaks -or limitations when optimising temporary stored procedures. Not that I see why there should be any, but I have been burnt before...

-

Blocking

-

You should not forget that one possible reason that the procedure ran slow in the application was simply a matter of blocking. When you tested the query three hours -later in SSMS, the blocker had completed its work. If you find that no matter how you run the procedure in SSMS, with or without ARITHABORT, the procedure is -always fast, blocking is starting to seem a likely explanation. Next time you are alarmed that the procedure is slow, you should start your investigation with some -blocking analysis. That is a topic which is completely outside the scope for this article, but for a good tool to investigate locking, see my -beta_lockinfo.

-

Indexed Views and Indexed Computed Columns

-

This is a problem which is far more common on SQL 2000 than on later versions.

-

For SQL Server 2005 or later to consider indexed views and indexes on computed columns (as well as filtered -indexes added in SQL 2008) when compiling a query, these settings must be ON: QUOTED_IDENTIFIER, ANSI_NULLS, ANSI_WARNINGS, ANSI_PADDING, CONCAT_NULL_YIELDS_NULL. Furthermore, -NUMERIC_ROUNDABORT must be OFF. But on SQL 2000, there is one more option that must be ON, and, yes, you guessed it: ARITHABORT. To be precise, this also -applies on SQL 2005 and SQL 2008 if the database compatibility level is 80. (The reason for this is that on SQL 2000 there is one type of error -– domain errors, e.g. -sqrt(-1) – that is covered by ARITHABORT, but not by ANSI_WARNINGS.)

-

Thus, on SQL 2000, an application using the default SET options will not be -able to take benefit of an index on a computed column or an indexed view, even -if that would be the optimal query plan. But when you run the query in SSMS or Query -Analyzer, performance will be a lot better, even if no parameter sniffing is -involved, because they have ARITHABORT ON by default.

-

If you are stuck on SQL 2000, you could change the client to always submit -SET ARITHABORT ON (this is not possible through the connection string; it has to -be submitted separately). You can also use ALTER DATABASE to turn on ARITHABORT -on database level. (But as I noted above, I find this setting more confusing -than helpful.)

-

There is a second phenomenon you can run into with indexed computed columns and indexed views. It's not unique to SQL 2000, but it happens a lot more there. -You have a stored procedure that is slow. You take out the statement and run it on its own, and now it's lightning fast, even if you package it nice and cleanly -in a temporary stored procedure as above. Why? Run this statement:

-
SELECT objectproperty(object_id('your_sp'), 'IsQuotedIdentOn'),
-       objectproperty(object_id('your_sp'), 'IsAnsiNullsOn')
-

Most likely it will return 0 it at least one of the two columns. As I noted -previously, these two settings, QUOTED_IDENTIFIER and ANSI_NULLS are saved with the procedure, and thus -the saved settings apply when the procedure runs, not the settings of the connection.

-

But why would these options be OFF? In SQL 2000, you can create stored procedures from Enterprise Manager, and Enterprise Manager always submits SET -QUOTED_IDENTIFIER OFF and SET ANSI_NULLS OFF prior to creating the object. It does not tell you, and there is no option to turn this madness off. -A much better deal is to use Query Analyzer: not only does it have the appropriate -defaults for the SET options, it also offers a far better editing experience. Yet, during the hey days of SQL 2000, it was apparent on the newsgroups that many developers were unaware of Query Analyzer, and used Enterprise Manager -exclusively.

-

For the most of us SQL 2000 is behind us, but you can still run into this issue for two reasons:

-
    -
  1. The database was upgraded from SQL 2000.
    2. -
  2. The procedure was created in a script that was executed with SQLCMD and OSQL, both which run with QUOTED_IDENTIFIER OFF by default. (Always run these - tools with the -I option to override.)
    3. -
-

To find all bad modules in a database on SQL 2005 or later, you can use this SELECT:

-
SELECT o.name
-FROM   sys.sql_modules m
-JOIN   sys.objects o ON m.object_id = o.object_id
-WHERE  (m.uses_quoted_identifier = 0 or
-        m.uses_ansi_nulls = 0)
-  AND  o.type NOT IN ('R', 'D')
-

An Issue With Linked Servers

-

This section concerns an issue with linked servers when the remote server is earlier than SQL 2012 SP1. Consider this query:

-
SELECT C.*
-FROM   SOME_SERVER.Northwind.dbo.Orders O
-JOIN   Customers C ON O.CustomerID = C.CustomerID
-WHERE  O.OrderID > 20000
-

I ran this query twice, logged in as two different users. The first user is sysadmin on both servers, whereas the second user is a plain user with only SELECT permissions. To ensure that I would get different cache entries, I used different settings for ARITHABORT.

-

When I ran the query as sysadmin I got this plan:

-

Linked-query1

-

When I ran the query as the plain user, the plan was different:

-

Linked query 2

-

How come the plans are different? It's certainly not parameter sniffing because there are no parameters. As always when a query plan has an unexpected shape or operator, it is a good idea to look at the estimates. Here are the pop-ups for the Remote Query operators in the two plans, with the pop-up for the first plan to the left:

- - - - - - -
Estimate is 1 row   Estimate is 249 rows
-

You can see that the estimates are different. When I ran as sysadmin, the estimate was 1 row, which is a correct number, since there are no Orders in Northwind where the order ID exceeds 20000. But when I ran as a plain user, the estimate was 249 rows. We recognize this particular number as 30 % of 830 orders, or the estimate for an inequality operation when the optimizer has no information. Previously, this was due to an unknown variable value, but in this case there is no variable that can be unknown. No, it is the statistics themselves that are missing.

-

As long as a query accesses only tables in the local server, the optimizer can always access the statistics for all tables in the query; there are no extra permission checks. But this is different with tables on a linked server. When SQL Server accesses a linked server, there is no secret protocol that is only used for inter-server communication. No, instead SQL Server uses the standard OLE DB interface for linked servers, be that other SQL Server instances, Oracle, text files or your home-brewed data source, and connects just like any other user. Exactly how statistics is retrieved depends on the data source and the OLE DB provider in question. In this case, the provider is SQL Server Native Client which retrieves the statistics in two steps. (You can see this by running Profiler against the remote server). First the provider runs the procedure sp_table_statistics2_rowset which returns information about which column statistics there are, as well as their cardinality and their density information. In the second step, the provider runs DBCC SHOW_STATISTICS, a command that returns the full distribution statistics. (We will look closer at this command later in this article.) Here is the catch: up to the RTM version of SQL Server 2012, to have permission to run DBCC SHOW_STATISTICS, you had to be a member of the server role sysadmin or any of the database roles db_owner or db_ddladmin.

-

And this is why I got different results. When running as sysadmin I got the full distribution statistics which indicated that there are no rows with order ID > 20000, and the estimate was one row. (Recall that the optimizer never assumes zero rows from statistics.) But when running as the plain user, DBCC SHOW_STATISTICS failed with a permission error. This error was not propagated, but instead the optimizer accepted that there were no statistics and used default assumptions. Since it did get cardinality information, it learnt that the remote table has 830 rows, whence the estimate of 249 rows.

-

Whenever you encounter a performance problem where a query that includes access to a linked server is slow in the application, but it runs fast when you test it from SSMS, you should always investigate if insufficient permissions on the remote database could be the cause. (Keep in mind that the access to the linked server may not be overt in the query, but could be hidden in a view.) If you determine that permissions on the remote database is the problem, what actions could you take?

- -

To repeat: what matters is the permissions on the remote server, not the local server where the query runs. Furthermore, the issue exists only when the SQL Server version of the remote server is the RTM version of SQL Server 2012 or any earlier versions of SQL Server. Starting with service pack 1 of SQL 2012, the permission requirement for DBCC SHOW_STATISTICS has been relaxed, so that it is sufficient to have SELECT permission on the table, making this gotcha null and void. (To be precise, the change came with one of the cumulative updates to the RTM version of SQL 2012, exactly which I don't recall.)

-

Note also that this section has no relevance to what may happen with other remote data sources such as Oracle, MySQL or Access as they have a different permission system. However, if you would run a query from, say, an Oracle server against a remote SQL Server 2008 instance, it is likely that this issue could affect your performance.

-

Getting Information to Solve Parameter Sniffing Problems

-

We have learnt how it may come that you have a stored -procedure that runs slow in the application, and the very same call runs fast -when you try it in SQL Server Management Studio: Because of different settings of -ARITHABORT you get different cache entries, and since SQL Server employs -parameter sniffing, you may get different execution plans.

-

While the secret behind the mystery now has been unveiled, the main problem -still remains: how do you address the performance problem? From what you read -this far, you already know of a quick -fix. If you have never seen the problem before and/or the situation is urgent, you -can always do:

-
EXEC sp_recompile problem_sp
-

As we have seen, this will flush the procedure from the plan cache, and next -time it is invoked, there will be a new query plan. And if the problems never -comes back, consider case closed.

-

But if the problem keeps reoccurring – and unfortunately, this is the more -likely outcome – you need to perform a deeper analysis, -and in this situation you should not use sp_recompile, or in some -other way -alter the procedure. You should keep that slow plan around, so that you can -examine it, and not the least find what parameter values the bad -plan was built for. This is the topic for this -chapter.

-

Before I go on, a small note: above I recommended that you should change -your preferences in SSMS, so that you by default connect with ARITHABORT -OFF to -avoid this kind of confusion. But there is actually a small disadvantage with -having the same settings as the application: you may not observe that the -performance problem is related to parameter sniffing. But if you make it a habit -when investigating performance issue to run your problem procedure with ARITHABORT both ON and -OFF, you can easily conclude whether parameter sniffing is involved.

-

Getting the Necessary Facts

-

All performance troubleshooting requires facts. If you don't have facts you will be in -the situation that Bryan Ferry describes so well in the song Sea Breezes -from the first Roxy Music album:

-
- We've been running round in our present state
Hoping help will come from - above
But even angels there make the same mistakes -
-

If you don't have facts, not even the angels will be able to help you. The -base facts you need to troubleshoot performance issues related to parameter -sniffing are:

-
    -
  1. Which is the slow statement?
    2. -
  2. What are the different query plans?
    3. -
  3. What parameter values did SQL Server sniff?
    4. -
  4. What are the table and index definitions?
    5. -
  5. How does the distribution statistics look like? Is it up to date?
    6. -
-

Almost all of these points apply to about any query-tuning effort. Only -the third point is unique to parameter-sniffing issues. That, and the plural in -the second point: you want to look at two plans, the good plan and the bad plan. -In the following sections, we will look at these points one by one.

-

Which is the Slow Statement?

-

First on the list is to find the slow statement – in most cases, the problem -lies with a single statement. If the procedure has only one statement, this is -trivial. Else, you can use Profiler to find out; the Duration column will tell -you. Either just trace the procedure -from the application, or run the procedure from Management Studio (with -ARITHABORT OFF!) and filter for your own spid.

-

Yet an option is to use the stored procedure -sqltrace, written by Lee Tudor and which I am glad to host on my web site. -sqltrace takes an SQL batch as parameter, starts a server-side trace, -runs the batch, stops the trace and then summarises the result. There are a -number of input parameters to control the procedure, for instance how to sort -the output.

-

Getting the Query Plans and Parameters with Management Studio

-

In many cases you can easily find the query plans by running the procedure in -Management Studio, after first enabling Include Actual Execution Plan (you find -it under the Query menu). This works well, as long as the procedure does not -include a multitude of queries, in which case the Execution Plan tab gets too -littered to work with. We will look at alternative strategies in the next -section.

-

Typically you would run the procedure like this:

-
SET ARITHABORT ON
-go
-EXEC that_very_sp 4711, 123, 1
-go
-SET ARITHABORT OFF
-go
-EXEC that_very_sp 4711, 123, 1
-

The assumption here is that the application runs with the default options, in -which case the first call will give the good plan – because the plan is sniffed -for the parameters you provide – and the second call will run with the bad plan -which already is in the plan cache. -To determine the cache keys in sway, you can use the query in the section -Different Plans for Different Settings to see the cache-key values for the plan(s) in the cache. (If you already have tried the -procedure in Management Studio, you may have two entries. The column -execution_count in sys.dm_exec_query_stats can help you to discern the entries -from each other; the one with the low count is probably your attempt from SSMS.)

-

Once you have the plans, you can easily find the sniffed parameter values. -Right-click the left-most operator in the plan – the one that reads SELECT, -INSERT, etc – select Properties, which will open a pane to the right. (That is -the default position; the pane is detachable.) Here is an example how it can -look like:

-

Query-plan Properties

-

The first Parameter Compiled Value is the sniffed value which is -causing you trouble one way or another. If you know your application and the -pattern how it is used, you may get an immediate revelation when you see the -value. Maybe you do not, but at least you know now that there is a situation where the application calls the procedure with this possibly odd -value.

-

Note also that you can see the -settings of some of the SET options that are cache keys. However, beware that -there is a - -bug in SQL 2005, so that that the SET options will be always be reported as -False. This is an engine bug, and thus your version of SSMS does not matter.

-

While Management Studio provides a very good interface to examine query -plans, I still want to put in a plug for a more versatile alternative, to wit -SQL -Sentry Plan Explorer, a free tool from SQL Sentry, a tool vendor in the SQL -Server space. Their Plan Explorer permits you view the plan in different ways, and it is -also easier to navigate among the queries if your batch has a lot of them.

-

When you look at a query plan, it is far from always apparent what part of the plan that is really costly. But the -thickness of the arrows is a good lead. The thicker the arrow, the more rows are passed to the next operator. And if you are looking at an actual execution -plan, the thickness is based on the actual number of rows. On the other hand, I usually don't give any attention to the percentages at all. They are always -estimates, and they can be way off, particular it there is a gross misestimate somewhere in the plan.

-

Getting the Query Plans and Parameters Directly from the Plan Cache

-

It is not always feasible to use SSMS to get the query plans and the sniffed parameter values. The bad query maybe runs for more minutes than your patience -can accept, or the procedure includes too many statements that you only get a mess in SSMS. Not the least this can be an issue if the procedure includes a loop -that is executed many times, in which case not even SQL Sentry Plan Explorer may be workable.

-

One option to get hold of the query plan and the sniffed parameters is to retrieve it directly from the plan cache. This is quite convenient -with help of the query below, but there is an obvious limitation with this method: you only get the estimates. -The actual number of rows and actual number of executions, two values that are -very important to understand why a plan is bad, are missing.

-

The Query

-

This query will return the statements, the sniffed parameter values and the -query plans for a stored procedure:

-
DECLARE @dbname    nvarchar(256),
-        @procname  nvarchar(256)
-SELECT @dbname = 'Northwind',
-       @procname = 'dbo.List_orders_11'
-
-; WITH basedata AS (
-   SELECT qs.statement_start_offset/2 AS stmt_start,
-          qs.statement_end_offset/2 AS stmt_end,
-          est.encrypted AS isencrypted, est.text AS sqltext,
-          epa.value AS set_options, qp.query_plan,
-          charindex('<ParameterList>', qp.query_plan) + len('<ParameterList>')
-             AS paramstart,
-          charindex('</ParameterList>', qp.query_plan) AS paramend
-   FROM   sys.dm_exec_query_stats qs
-   CROSS  APPLY sys.dm_exec_sql_text(qs.sql_handle) est
-   CROSS  APPLY sys.dm_exec_text_query_plan(qs.plan_handle,
-                                            qs.statement_start_offset,
-                                            qs.statement_end_offset) qp
-   CROSS  APPLY sys.dm_exec_plan_attributes(qs.plan_handle) epa
-   WHERE  est.objectid  = object_id (@procname)
-     AND  est.dbid      = db_id(@dbname)
-     AND  epa.attribute = 'set_options'
-), next_level AS (
-   SELECT stmt_start, set_options, query_plan,
-          CASE WHEN isencrypted = 1 THEN '-- ENCRYPTED'
-               WHEN stmt_start >= 0
-               THEN substring(sqltext, stmt_start + 1,
-                              CASE stmt_end
-                                   WHEN 0 THEN datalength(sqltext)
-                                   ELSE stmt_end - stmt_start + 1
-                              END)
-          END AS Statement,
-          CASE WHEN paramend > paramstart
-               THEN CAST (substring(query_plan, paramstart,
-                                   paramend - paramstart) AS xml)
-          END AS params
-   FROM   basedata
-)
-SELECT set_options AS [SET], n.stmt_start AS Pos, n.Statement,
-       CR.c.value('@Column', 'nvarchar(128)') AS Parameter,
-       CR.c.value('@ParameterCompiledValue', 'nvarchar(128)') AS [Sniffed Value],
-       CAST (query_plan AS xml) AS [Query plan]
-FROM   next_level n
-CROSS  APPLY   n.params.nodes('ColumnReference') AS CR(c)
-ORDER  BY n.set_options, n.stmt_start, Parameter
-

If you have never worked with these DMVs before, I appreciate if this is -mainly mumbo-jumbo to you. To -keep the focus on the main subject of this article, I will -defer to a later section to explain this query. The only thing I like to give -attention to here and now is that you specify the database and the procedure -you want to work with in the beginning. You may think this would better be a -stored procedure, but it is quite likely that you want to add or remove columns, depending on -what you are looking for.

-

The Output

-

To see the query in this action, you can use this test batch (and, yes, the -examples get more and more contrived as we move on):

-
CREATE PROCEDURE List_orders_11 @fromdate datetime,
-                                @custid   nchar(5) AS
-SELECT @fromdate = dateadd(YEAR, 2, @fromdate)
-SELECT *
-FROM   Orders
-WHERE  OrderDate > @fromdate
-  AND  CustomerID = @custid
-IF @custid = 'ALFKI' CREATE INDEX test ON Orders(ShipVia)
-SELECT *
-FROM   Orders
-WHERE  CustomerID = @custid
-  AND  OrderDate > @fromdate
-IF @custid = 'ALFKI' DROP INDEX test ON Orders
-go
-SET ARITHABORT ON
-EXEC List_orders_11 '19980101', 'ALFKI'
-go
-SET ARITHABORT OFF
-EXEC List_orders_11 '19970101', 'BERGS'
-

When you have executed this batch, you can run the query above. When I do -this I see this result in SSMS:

-

-Results of plan-cache query

-

These are the columns:

-

-SET – The set_options attribute for the plan. As I discussed earlier, this is a bit mask. -In this picture, you see the two most likely values. 251 is -the default settings and 4347 is the default settings + ARITHABORT ON. If you see other values, you can use the function -setoptions to translate the bit mask.

-

-Pos – This is the position for the query in the procedure, counted in -characters from the start of the batch that created the procedure, -including any comments preceding CREATE PROCEDURE. Not terribly useful in -itself, but serves to sort the statements in the order they appear in the -procedure.

-

-Statement – The SQL statement. Note that the statements are repeated once for -each parameter in the query.

-

-Parameter – The name of the parameter. Only parameters that -appear in this statement are listed. As a consequence of this, statements that do not refer to any parameters are not included in the output -at all.

-

-Sniffed Value – The compile-time value for the parameter, that is, the value -that the optimizer sniffed when it built the plan. In difference to the Properties pane for the -plan, you don't see any actual parameter value here. As I discussed previously, the sniffed value for a parameter can be different for different -statements in the procedure, and you see an example of this in the picture above.

-

-Query Plan – The query plan. If you have SQL Server Management -Studio 2008 or later, you can click on the XML document, and you will see the graphical -plan directly. If you have SSMS 2005, you will only see the XML document. You -can save it with the extension .sqlplan, and then re-open it to see the graphics. As I noted -above, this is only the estimated plan. You cannot get any actual values from the cache.

-

The Query Explained

-

This query refers to some DMVs which not all readers may be acquainted with. It also uses some query techniques that you -may not be very familiar with, for instance -XQuery. It would take up too much space and distract you from the main topic to -dive into the query in full, so I will explain it only briefly. If the query and the explanation goes over -your head, don't feel too bad about it. As long you understand the output, you -can still have use for the query.

-

The query uses two CTEs (Common Table Expression). The first CTE, -basedata, includes all access to DMVs. -We have already seen of all of -them but sys.dm_exec_text_query_plan. There are two more columns we -retrieve from sys.dm_exec_query_stats, to wit statement_start_offset -and statement_end_offset. They delimit the statement for this row, and we -pass them to sys.dm_exec_text_query_plan to get the plan for this -statement only. (Recall that the procedure is a single cache entry with a -single plan_handle.) sys.dm_exec_text_query_plan returns the column query_plan -which contrary to what you may expect is nvarchar(MAX). -The reason for this is that the XML for a query plan may be so deeply -nested, that it cannot be represented with SQL Server's built-in xml -data type. The CTE returns the query plan as such, but it also extracts the -positions for the part in the document where the parameter values appear.

-

In the next CTE, next_level, I go on and use the values -obtained in basedata. The CASE -expression extracts the statement from the text returned by sys.dm_exec_sql_text. -The way to do this is fairly clunky, not the least with those long column names. -Since there is little reason to modify that part of the query, I say no more but -refer you to Books Online. Or just believe me when I say it works. :-) The next -column in the CTE, params, performs the actual extraction of the parameter -values from the query-plan document and converts that element to the xml -data type.

-

In the final SELECT, I shred the params document, so that we get one row -per parameter. It can certainly be argued that it is better to have all -parameters on a single row, since in this case each statement will only appear -once, and you could easily modify the final SELECT to achieve that. In the final -SELECT, I also convert the query-plan column to XML, but as noted above, this -could fail because of limitations with the xml data type. If you get such -an error, just comment out that column.

-

Beside the alterations I have already mentioned, there are several ways you -could modify the query to get information you find interesting. For instance, -you could add more columns -from sys.dm_exec_query_stats or more plan -attributes. I opted to include the set_options attribute only, since this -is the cache key which is most likely to vary. If you would like to include all statements in the procedure, including those that do not refer to any of the -input parameters, just change CROSS APPLY on the next-to-last line to OUTER APPLY.

-

Getting Query Plans and Parameters from a Trace

-

Yet an alternative to get hold of the query plans is to run a trace against the application or against your connection in SSMS. There are several Showplan -events you can include in a trace. The most versatile is Showplan XML Statistics Profile which gives you the same information as you see in SSMS when you enable -Include Actual Execution Plan.

-

However, for several reasons a trace is rarely a very good alternative. To start with, enabling query-plan information in a trace induces quite some load on the -server. And observe that this applies even if you narrow your filter to a single spid. The way the trace engine works, all processes still have to -generate the event. I know. By mistake I once left a trace with Showplan XML Statistics Profile, filtered for my own spid, -running on a production -server. It wasn't fun.

-

Next, if you run the trace in Profiler, you are likely to find it very difficult to set up a good filter that captures what you want to see but hides all -the noise. One possibility, once the trace has completed, is to save the trace -to a table in the database, which permits you to find the interesting -information through queries. (But don't ask Profiler to save to a table -while the trace is running. The overhead for that is awful.) The plan is in the -TextData column. Cast it to xml and then you can view it as I described -in the previous section.

-

In SQL 2008 you can also use Extended Events to get hold of the query plan, but this does not appear to be any simple work. I have not worked with -Extended Events myself, so I cannot give any examples.

- -

Getting Table and Index Definitions

-

I assume that you are already acquainted with ways to find out how a table is -defined, either with sp_help or through scripting, so I jump directly to the topic of indexes. They too can be scripted or you can use sp_helpindex. -But scripting is bulky in my opinion, and sp_helpindex does not support features -added in SQL 2005 or later. This query can be helpful:

-
DECLARE @tbl nvarchar(265)
-SELECT @tbl = 'Orders'
-
-SELECT o.name, i.index_id, i.name, i.type_desc,
-       substring(ikey.cols, 3, len(ikey.cols)) AS key_cols,
-       substring(inc.cols, 3, len(inc.cols)) AS included_cols,
-       stats_date(o.object_id, i.index_id) AS stats_date,
-       i.filter_definition
-FROM   sys.objects o
-JOIN   sys.indexes i ON i.object_id = o.object_id
-CROSS  APPLY (SELECT ', ' + c.name +
-                     CASE ic.is_descending_key
-                          WHEN 1 THEN ' DESC'
-                          ELSE ''
-                     END
-              FROM   sys.index_columns ic
-              JOIN   sys.columns c ON ic.object_id = c.object_id
-                                  AND ic.column_id = c.column_id
-              WHERE  ic.object_id = i.object_id
-                AND  ic.index_id  = i.index_id
-                AND  ic.is_included_column = 0
-              ORDER  BY ic.key_ordinal
-              FOR XML PATH('')) AS ikey(cols)
-OUTER  APPLY (SELECT ', ' + c.name
-              FROM   sys.index_columns ic
-              JOIN   sys.columns c ON ic.object_id = c.object_id
-                                  AND ic.column_id = c.column_id
-              WHERE  ic.object_id = i.object_id
-                AND  ic.index_id  = i.index_id
-                AND  ic.is_included_column = 1
-              ORDER  BY ic.index_column_id
-              FOR XML PATH('')) AS inc(cols)
-WHERE  o.name = @tbl
-  AND  i.type IN (1, 2)
-ORDER  BY o.name, i.index_id
-

As listed, the query will not run on SQL 2005, but just remove the final -column, filter_definition, from the result set. This column applies to -filtered indexes, a feature added in SQL 2008. As for the column stats_date, -see the next section.

-

The query only lists regular relational indexes, not XML indexes or spatial indexes. Problems related to searches in XML documents or spatial columns are -beyond the scope for this article anyway.

-

Finding Information About Statistics

-

To view all statistics for a table, you can use this query:

-
DECLARE @tbl nvarchar(265)
-SELECT @tbl = 'Orders'
-
-SELECT o.name, s.stats_id, s.name, s.auto_created, s.user_created,
-       substring(scols.cols, 3, len(scols.cols)) AS stat_cols,
-       stats_date(o.object_id, s.stats_id) AS stats_date,
-       s.filter_definition
-FROM   sys.objects o
-JOIN   sys.stats s ON s.object_id = o.object_id
-CROSS  APPLY (SELECT ', ' + c.name
-              FROM   sys.stats_columns sc
-              JOIN   sys.columns c ON sc.object_id = c.object_id
-                                  AND sc.column_id = c.column_id
-              WHERE  sc.object_id = s.object_id
-                AND  sc.stats_id  = s.stats_id
-              ORDER  BY sc.stats_column_id
-              FOR XML PATH('')) AS scols(cols)
-WHERE  o.name = @tbl
-ORDER  BY o.name, s.stats_id
-

As with the query for indexes, the query does not run for SQL 2005 as listed, but just remove filter_definition from the result set. auto_created -refers to statistics that SQL Server creates automatically when it gets the occasion, while user_created refers to indexes created explicitly with CREATE -STATISTICS. If both are 0, the statistics exists because of an index.

-

The column stats_date returns when the statistics most recently was -updated. If the date is way back in the past, the statistics may be out of date. -The root cause to parameter-sniffing-related problems is usually something else -than outdated statistics, but it is always a good idea to look out for this. One -thing to keep in mind is that statistics for columns with monotonically -increasing data – e.g. id and date columns – quickly go out of date, because -queries are often for the most recently inserted data, which is always beyond -the last slot in the histogram (more about histograms later).

-

If you believe statistics are out of date, you can use this command:

-
UPDATE STATISTICS tbl WITH FULLSCAN, INDEX
-

This updates all statistics related to indexes on the table by scanning them -in full. FULLSCAN is not necessary, but I have been burned too often by -inaccurate statistics to be really comfortable with sampled statistics (which is -the default). Restricting the statistics update to indexes only reduces execution -time considerably, because SQL Server scans the table once for each non-index -statistics.

-

You can also update statistics for a single index. The syntax for this is not -what you may expect:

-
UPDATE STATISTICS tbl indexname WITH FULLSCAN
-

Note: there is no period between the table name and the index name, just space.

-

Note that after updating statistics, you may see an immediate performance -improvement in the application. This does necessarily prove that outdated -statistics was the problem. Since updated statistics causes recompilation, the -parameters may be re-sniffed and you get a better plan.

-

To see the distribution statistics for an index use DBCC SHOW_STATISTICS. -This command takes two parameters. The first is the table name, whereas the -second can be the name of an index or statistics, but you can also specify a -column name. For instance:

-
DBCC SHOW_STATISTICS (Orders, OrderDate)
-

This displays three result sets. I will not cover all of them here, but only say that the -last result set is the actual histogram for the statistics. The histogram -reflects the distribution that SQL Server has recorded about the data in the -table. Here is how the first few lines look in the example:

-

-Histogram

-

This tells us that according to the statistics there is exactly one row with -OrderDate = 1996-07-04. Then there is one row in the range from -1996-07-05 to 1996-07-07 and two rows with OrderDate = 1996-07-08. (Because -RANGE_ROWS is 1 and EQ_ROWS is 2.) The histogram then continues, and there is in -total 188 steps for this particular statistics. There are never more than 200 -steps in a histogram. For full details on the output, please see the topic for DBCC -SHOW_STATISTICS in Books -Online. One of the white papers listed in the section -Further Reading has more valuable information -about statistics and the histogram.

-

Note: In SQL 2005 there is a bug, so if there is a step for -NULL values, DBCC SHOW_STATISTICS fails to show -this row. This is a display error, and the value is still there in the -histogram.

-

You do typically not run DBCC SHOW_STATISTICS for all statistics to have the information -just in case, but only when you think that the information may be useful to you. -We will look such an example in the next chapter.

-

Examples of How to Fix Parameter-Sniffing Issues

-

It is important to understand that parameter sniffing in itself is not a problem; au contraire, it is a feature, since without it SQL Server would have to -rely on blind assumptions, which in most cases would lead to less optimal query plans. But sometimes parameter sniffing works against you. -We can identify three typical situations:

-
    -
  1. The query usage is such that parameter sniffing is entirely inappropriate. - That is, a plan which is good for a certain execution may be - inappropriate for the next.
    2. -
  2. There is a specific pattern in the application where one group of calls is - very different from the main bulk. Often this is a call the - application performs on start-up or at the beginning of a new day.
    3. -
  3. The index structure for one or more tables is such that there is no perfect - index for the query, but there are several half-good indexes, and it is - haphazard which index the optimizer chooses.
    4. -
-

It can be difficult to say beforehand which applies to your situation, and -that is why you need to make a careful analysis. In the previous section I -discussed what information you need, although I did not always make it clear -what for. In addition, there is one more thing I did not list but which be -immensely helpful: intimate knowledge about how the application works and its -usage pattern.

-

Since there are several possible reasons why parameter sniffing gives you a -headache, this means that there is no single solution that you can apply. Rather -there is a host of them, depending on where the root cause lies. In the following I will give some examples of parameter-sniffing related -issues and how to address them. Some are real-life examples, others are more -generic in nature. Some of the examples focus more on the analysis, others take -a straight look at the solution.

-

A Non-Solution

-

Before I go into the real solutions, let me first point out that adding SET -ARITHABORT ON to your procedure is not a solution. It will seem to work -when you try it. But that is -only because you recreated the procedure which forced a new compilation and then the next invocation sniffed the current set of parameters. SET ARITHABORT ON is -only a placebo, and not even a good one. The problem will most likely come back. It will not even help you avoid the confusion with -different performance in the application and SSMS, because the overall cache -entry will still have ARITHABORT OFF as its plan attribute.

-

So, don't put SET ARITHABORT ON in your stored procedures. Overall, I -strongly discourage from you using any of the SET commands that are cache keys in -your code.

-

Best Index Depends on Input

-

Consider this procedure:

-
CREATE PROCEDURE List_orders_12 @custid   nchar(5),
-                                @fromdate datetime,
-                                @todate   datetime AS
-   SELECT *
-   FROM   Orders
-   WHERE  CustomerID = @custid
-     AND  OrderDate BETWEEN @fromdate AND @todate
-

There is a non-clustered index on CustomerID and another one on OrderDate. -Assume that the order activity among customers varies vividly. Many -customers make just a handful a orders per year. But some customers are more -active, and some real big guys may place several orders per day.

-

In the Northwind database, the most active customer is SAVEA with 31 orders, -whereas CENTC has only one order. Run the below:

-
EXEC List_orders_12 'SAVEA', '19970811', '19970811'
-go
-sp_recompile List_orders_12
-go
-EXEC List_orders_12 'CENTC', '19960101', '19961231'
-

That is, for SAVEA we only look at the orders for a single day, but for CENTC -we look at the orders for an entire year. As you may sense, these two -invocations are best served by different indexes. Here is the plan for the first invocation:

-

Plan for List_orders_11 'SAVEA'

-

SQL Server here uses the index for OrderDate which is the most selective. The plan for the second invocation is different:

-

Plan for list_orders_11 'CENTC'

-

Here CustomerID is the most selective column, and SQL Server uses the index on CustomerID.

-

One solution to address this is to force recompilation every time with the -RECOMPILE query hint:

-
CREATE PROCEDURE List_orders_12 @custid   nchar(5),
-                                @fromdate datetime,
-                                @todate   datetime AS
-SELECT *
-FROM   Orders
-WHERE  CustomerID = @custid
-  AND  OrderDate BETWEEN @fromdate AND @todate
-OPTION (RECOMPILE)
-

With this hint, SQL Server will compile the query every time. Rather than -using the query hint, you can tell SQL Server to recompile the entire procedure -on each invocation:

-
CREATE PROCEDURE List_orders_12 @custid   nchar(5),
-                                @fromdate datetime,
-                                @todate   datetime WITH RECOMPILE AS
-

For the example at hand, it has no importance which you use, since the -procedure consists of a single statement. But for a long procedure with many statements -of which only one is problematic, WITH RECOMPILE -is clearly an inferior choice, due to the increase in compilation overhead. An -interesting effect of WITH RECOMPILE, though, is that the plan is never put into -the cache at all, whereas this happens when you use OPTION (RECOMPILE).

-

In many cases, forcing recompilation every time is quite alright, but there are a few situations where it -is not:

-
    -
  1. The procedure is called with a very high frequency, and the compilation overhead - hurts the system.
    2. -
  2. The query is very complex and the compilation time has a noticeable - negative impact on the response time.
    3. -
-

More to the point, while forcing recompilation is a solution that is -almost always feasible, it is not always the best solution. As a matter of fact, -the example we have looked at in this section is probably not very typical for -the situation "fast in SSMS, slow in the application". Because, if you have -varying usage pattern, you will be alerted of varying performance within the -application itself. So there is all reason to read on, and see if the situation -you are facing fits with the other examples I present.

-

Dynamic Search Conditions

-

It is very common to have forms where users can select from a number of -search conditions. For instance they can select to see orders on a certain date, -by a certain customer, for a certain product etc, including combinations of the -parameters. Such procedures are sometimes implemented with a WHERE clauses that -goes:

-
WHERE (CustomerID = @custid OR @custid IS NULL)
-  AND (OrderDate = @orderdate OR @orderdate IS NULL)
-  ...
-

As you may imagine, parameter sniffing is not beneficial for such procedures. -I am not going to take up much space on this problem here, for two -reasons: 1) As I've already said, problem with such procedures usually manifests -itself with varying performance within the application. 2) I have a -separate article devoted to this topic, entitled Dynamic -Search Conditions in T‑SQL.

-

Reviewing Indexing

-

Some time ago, one of my clients contacted me because one of their customers -experienced a severe performance problem with a function in their system. My -client said that the same code ran well at other sites, and there had been no -change recently to the application. (But you know, clients always say that, it seems.) They had been able to isolate the -problematic procedure, which included a query which looked something like this:

-
SELECT DISTINCT c.*
-FROM   Table_C c
-JOIN   Table_B b ON c.Col1 = b.Col2
-JOIN   Table_A a ON a.Col4 = b.Col1
-WHERE  a.Col1 = @p1
-  AND  a.Col2 = @p2
-  AND  a.Col3 = @p3
-

When executed from the application, the query took 10-15 minutes. When they -ran the procedure from SSMS, they found that response time was instant. That was then they called me.

-

An account was set up for me to make it possible to log in to the site in question. I found -that all three tables were of some size, at least a million rows in each. I looked -at the indexes for Table_A, and I found that it had some 7-8 indexes. Of interest -for this query was:

- -

Thus, where was no index that covered all conditions in the WHERE clause.

-

When I ran the procedure in SSMS with default settings, the optimizer choose -the first index to get data from Table_A. When I changed the setting of ARITHABORT -to OFF to match the application, I saw a plan that used the index on Col3.

-

At this point I ran

-
DBCC SHOW_STATISTICS (Table_A, Col3_ix)
-

The output looked like something like this:

- - --- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
RANGE_HI_KEYRANGE_ROWSEQ_ROWSDISTINCT_RANGE_ROWSAVG_RANGE_ROWS
APRICOT01701
BANANA012346201
BLUEBERRY04601
CHERRY09254101
FIG0135101
KIWI042112101
LEMON0654301
LIME012213101
MANGO09582401
ORANGE01041001
PEAR04651201
PINEAPPLE02110201
PLUM01301
RASPBERRY09501
RHUBARB0741601
STRAWBERRY02461101
- -

That is, there were only 17 distinct values for this column and with a very -uneven distribution among these values. I also confirmed this fact by -running the query:

-
SELECT Col3, COUNT(*) FROM Table_A GROUP BY Col3 ORDER BY Col3
-

I proceeded to look at the bad query plan to see what value that the optimizer -had sniffed -for @p3. I found that it was – APPLE, a value not present -in the table at all! That is, the first time the procedure was executed, SQL -Server had estimated that the query would return a single row (recall that it -never estimates zero rows), and that the index on Col3 would be the most -efficient index to find that single row.

-

Now, you may ask how it could be that unfortunate that the procedure was -first executed for APPLE? Was that just bad luck? Since I don't know this -system, I can't tell for sure, but apparently this had happened more than -once. I got the impression that this procedure was -executed many times as part of some bigger operation. Say that the operation would always start with APPLE. Remember that reindexing a table triggers recompilation, and it is -very common to run maintenance jobs at night to keep fragmentation in check. -That is, the first call in the morning can be very decisive for your -performance. (Why would the operation start with a value that is not in the -database? Who knows, but maybe APPLE is an unusual condition that needs to be -handled first if it exists. Or maybe it is just the alphabet.)

-

For this particular query, there is a whole slew of possible measures to -address the performance issue.

-
    -
  1. OPTION (RECOMPILE) / WITH RECOMPILE
    2. -
  2. Add the "optimal" index on (Col1, Col2, Col3) INCLUDE (Col4).
    3. -
  3. Make the index on Col3 filtered or drop it entirely.
    4. -
  4. Use an index hint to force use of any of the other indexes.
    5. -
  5. The query hint OPTIMIZE FOR.
    6. -
  6. Copy @p3 to a local variable.
    7. -
  7. Change the application behaviour.
    8. -
-

We have already looked at forcing recompilation, and while it most probably would have solved the problem, it is not likely that it would have been -the best solution. Below, I will look into the other options in more detail.

-

Add a New Index

-

My primary recommendation to the customer was the second on the list: add an index that -matches the query perfectly. That is, an index where all columns in the WHERE -clauses are index keys, with the least selective column Col3 last among the -keys. On top of that, add Col4 as an included column, so that the query can be -resolved from the new index alone, without any need to access the data pages.

-

However, adding a new index is not always a good solution. If you have a table -which is accessed in a multitude of ways, it may not be feasible to add indexes -that matches all WHERE and JOIN conditions, even less to add covering indexes -for each and every query. Particularly, this applies to tables with a heavy -update rate, like an Orders table. The more indexes you add to a table, the -higher the cost to insert, update and delete rows in the table.

-

Change / Drop the Index on Col3

-

How useful is the index on Col3 really? Since I don't know this system -it is difficult to tell. But generally, indexes on columns with only a small -set of values are not very selective and thus not that useful. So an option could be to drop -the -index on Col3 altogether and thereby save the optimiser from this trap. Maybe -the index was added at some point in time -by mistake, or it was added without understanding of how the database would look like after a -couple of years. (Having worked a little more with this client, it -seems that they add indexes on all FK columns a matter of routine. Which may or -may not be a good idea.)

-

It cannot be denied, that you have to be a very brave person to drop -an index entirely. You can consult sys.dm_dbindex_usage_stats -to see how much the index is used. Just keep in mind that this DMV is cleared -when SQL Server is restarted or the database is taken offline.

-

Since the distribution in Col3 is so uneven, it is not unlikely that there are queries that look for these rare values specifically. Maybe FIG is "New -unprocessed rows". Maybe RASPBERRY means "errors". In this case, it could be -beneficial to make Col3_ix a filtered index, a new feature added in SQL 2008. For instance, the index definition could read:

-
CREATE INDEX col3_ix ON Table_A(col3) WHERE col3 IN ('FIG', 'RASPBERRY', 'APPLE', 'APRICOT')
-

This has two benefits:

-
    -
  1. The size of the index is reduced with more than 99%.
    2. -
  2. The index is no longer eligible for the problem query. Recall that SQL - Server must select a plan which is correct for all input values, so even if - the sniffed parameter value is APPLE, SQL Server cannot use the index, because - the plan would yield incorrect result for KIWI.
    3. -
-

Force a Different Index

-

If you know that the index on Col1, Col2 will always be the best index, but -you don't want to add or drop any index, you can force the index with:

-
SELECT c.*
-FROM   Table_C c
-JOIN   Table_B b ON c.Col1 = b.Ccol2
-JOIN   Table_A a WITH (INDEX = Combo_ix) ON a.Col4 = b.Col1
-WHERE  a.Col1 = @p1
-  AND  a.Col2 = @p2
-  AND  a.Col3 = @p3
-

You can even say:

-
WITH (INDEX (combo_ix, col2_ix))
-

to give the optimizer the choice between the two "good" indexes.

-

Index hints are very popular, too popular one might say. You should think -twice before you add an index hint, because tomorrow your data distribution may -be different, and another index would serve the query better. A second problem -is that if you later decide to rearrange the indexes, the query will fail with -an error because of the missing index.

-

OPTIMIZE FOR

-

OPTIMIZE FOR is a query hint that permits you to control parameter sniffing. -For the example query, it could look like this:

-
SELECT c.*
-FROM   Table_C c
-JOIN   Table_B b ON c.col1 = b.col2
-JOIN   Table_A a ON a.col4 = b.col1
-WHERE  a.col1 = @p1
-  AND  a.col2 = @p2
-  AND  a.col3 = @p3
-OPTION (OPTIMIZE FOR (@p3 = 'KIWI'))
-

The hint tells SQL Server to ignore the input value, but instead compile the -query as if the input value of @p3 is KIWI, the most common value in -Col3. This will surely dissuade SQL Server from using the index.

-

A second option, available only in SQL 2008 and later, is:

-
OPTION (OPTIMIZE FOR (@p3 UNKNOWN))
-

Rather than hard-coding any particular value, we can tell SQL Server to make -a blind assumption to completely kill parameter sniffing for @p3.

-

It is worth adding that you can use OPTIMIZE FOR also with locally declared -variables, and not only with parameters.

-

Copy @p3 to a Local Variable

-

Rather than using @p3 directly in the query, you can copy it to a local -variable, and then use the variable in the query. This has the same effect as -OPTIMIZE FOR UNKNOWN. And it works on any version of SQL Server.

-

Change the Application

-

Yet an option is to change the processing in the application so that it starts -with the one of the more common values. It's not really a solution I recommend, -because it creates an extra dependency between the application and the database. -There is risk that the application two years later is rewritten to -accommodate new requirements that PEACH rows must be handled, and this handling -is added first...

-

Then again, there may be a general flaw in the process. Is the application -asking for values for one fruit at a time, when it should be getting values for -all fruits at once? I helped this client with another query. We had a -query-tuning session in a conference room, and I was never able to get really -good performance from the query we were working with. But towards the end of the day, the responsible -developer said that he knew how to continue, and his solution was to rearchitect -the entire process the problematic query was part of.

-

Summing it Up

-

As you have seen in this example, there are a lot of options to choose from – too -many, you may think. But performance tuning often requires you to have a -well-stuffed bag of tricks, because different problems call for different -solutions.

-

The Case of the Application Cache

-

In -the system I work with most of my time, there is a kind of application cache that keeps data in a main-memory database, let's call it MemDb. It is used for -several purposes, but the main purpose is to serve as a cache from which the -customer's web server can retrieve data rather than querying the database. -Typically, in the morning there is a total refresh of the data. When data in a -database table is updated, there is a signalling mechanism which triggers MemDb to run a -stored procedure to get the delta. In order to -find what has changed, MemDb relies on timestamp columns. (A timestamp column -holds an 8-byte value that is unique to the database and which grows -monotonically. It is -automatically updated when the row is inserted or updated.) A typical stored procedure -to retrieve changes looks like this:

-
 CREATE PROCEDURE memdb_get_updated_customers @tstamp timestamp AS
-   SELECT CustomerID, CustomerName, Address, ..., tstamp
-   FROM   Customers
-   WHERE  tstamp > @tstamp
-

When MemDb calls these procedures, it passes the highest value in the tstamp -column for the table in question from the previous call. When the procedure is invoked for a refresh, the main-memory database passes 0x as the parameter to get -all rows.

-

Side note: The actual scheme is more complicated than the -above; I have simplified it to focus on what is important for this article. If you are -considering something similar, -be warned that as shown, this example has lots of issues with concurrent updates, -not the least if you use any form of snapshot isolation. SQL 2008 introduced Change Tracking which is a more solid -solution, particularly designed for this purpose. I also like to add that MemDb was not my idea, nor was I involved in the design of it.

-

At one occasion when I monitored the performance for a customer that just -had went live with our system, I noticed that the MemDb procedures had quite -long execution times. Since they run very often to read deltas, they have to -be very quick. After all, one idea with MemDb is to take load off from the -database – not add to it.

-

For a query like the above to be fast there has to be an index on tstamp, -but will this index be used? From what I said above, the first thing in the -morning, MemDb would run:

-
EXEC memdb_get_updated_customers 0x
-

Then a little later, it would run something like:

-
EXEC memdb_get_updated_customers 0x000000000003E806
-

It is not uncommon that during the night that query plans fall out of -the cache because of nightly batches that consume a lot of memory. Or there is a -maintenance job to rebuild indexes which triggers recompiles. So typically, -when the morning refresh runs, there is not any plan in the cache, and the -value sniffed is 0x. Given this value, will the optimizer use the index on -tstamp? Yes, if it is the clustered index. But since a timestamp column is -updated every time a row is updated, it is not a very good choice for the -clustered index, and all our indexes on timestamp columns are non-clustered. (And -for tables with a high update frequency, also a non-clustered index on a -timestamp column may be questionable.) Thus, since the optimizer sees that the -parameter indicates that all rows in the table will be retrieved, it settles for -a table scan. This plan is put into cache, and subsequent calls also scan the table, -even if they are only looking for the most recent rows. And it was this poor -performance that I saw.

-

When you have a situation like this, there are, just like in the previous -example, several ways to skin the cat. But before we look at the possibilities, -we need to make one important observation: there is no query plan that is good -for both cases. We want to use the index to read the deltas, but when making the -refresh we want the scan. Thus, only solutions that can yield different plans -for the two cases need to apply.

-

OPTION (RECOMPILE)

-

While this solution meets the requirement, it is not a good solution. This -means that every time we retrieve a delta, there is compilation. And while the -above procedure is simple, some of the MemDb procedures are decently complex with -a non-trivial cost for compilation.

-

EXECUTE WITH RECOMPILE

-

Rather than requesting recompilation inside the procedure, it is better to do -it in the special case: the refresh. The refresh only happens once a day normally. And furthermore, the refresh is fairly costly in itself, so the cost of -recompilation is marginal in this case. That is, when MemDb wants to make a refresh, it should call the procedure in this way:

-
EXECUTE memdb_get_updated_customers WITH RECOMPILE
-

As I noted previously, it is likely that there is no plan in the cache early -in the morning, so you may ask what's the point? The point is that when you use WITH -RECOMPILE with EXECUTE, the plan is not put into cache. Thus, the refresh can -run with the scan, but the plan in the cache will be built from the first delta -retrieval. (And if the plan for reading the delta still is in the cache, that plan will remain in the cache.)

-

For the particular problem in our system, this was the solution I mandated. An extra advantage for us was that there was a single code path in MemDb that -had to be changed.

-

There is however a slight problem with this solution. Normally, when you call -a stored procedure from a client, you use a special command type where you -specify only the name of the procedure. (For instance, -CommandType.StoredProcedure in ADO .NET.) The client API then makes an RPC -(remote procedure call) to SQL Server, and there is never an EXECUTE statement as such. -Very few client APIs seem to expose any method to specify -WITH RECOMPILE when you call a procedure through RPC. The workaround is to send -the full EXECUTE command, using CommandType.Text or similar, for -instance:

-
cmd.CommandType = CommandType.Text;
-cmd.Text = "EXECUTE memdb_get_updated_customers @tstamp WITH RECOMPILE";
-

Note: You should pass the parameters through the Parameters collection or -corresponding mechanism in your API; don't inline the values in the string with -the EXEC command, as this could open for -SQL injection.

-

Using a Wrapper Procedure

-

If you have a situation where you realise that EXECUTE WITH RECOMPILE is the -best solution, but it is not feasible to change the client, you can introduce a -wrapper procedure. In our example the original procedure would be renamed to -memdb_get_updated_customers_inner, and then you would write a wrapper that -goes:

-
CREATE PROCEDURE memdb_get_updated_customers @tstamp timestamp AS
-   IF @tstamp = 0x
-      EXECUTE memdb_get_updated_customers_inner @tstamp WITH RECOMPILE
-   ELSE
-      EXECUTE memdb_get_updated_customers_inner @tstamp
-

In many cases this can be a plain and simple solution, particularly if you have a small number of such procedures. (We have many.)

-

Different Code Paths

-

Another approach would be to have different code paths for the two cases:

-
CREATE PROCEDURE memdb_get_updated_customers @tstamp timestamp AS
-   IF @tstamp = 0x
-   BEGIN
-      SELECT CustomerID, CustomerName, Address, ..., tstamp
-      FROM   Customers
-   END
-   ELSE
-   BEGIN
-      SELECT CustomerID, CustomerName, Address, ..., tstamp
-      FROM   Customers WITH (INDEX = timestamp_ix)
-      WHERE  tstamp > @tstamp
-   END
-

Note that it is important to force the index in the ELSE branch, or else this branch will scan the table if the first call to the procedure is for @tstamp = -0x because of parameter sniffing. If your procedure is more complex and includes joins to other tables, it is -not likely that this strategy will work out, even if you force the index on -tstamp. The estimates for the joins would be grossly incorrect and the query plans would still be optimized to get all data, and not the delta.

-

Different Procedures

-

In the situation we had, there was one procedure that was particularly -difficult. It retrieved account transactions (this is a system for stock -trading). The refresh would not retrieve all transactions in the database, but -only from the N most recent days, where N was a system parameter read from the -database. In this database N was 20. The procedure did not read from a single -table, but there was umpteen other tables in the query. Rather than having a -timestamp parameter, the parameter was an id. This works since transactions are never -updated, so MemDb only needs to look for new transactions.

-

I found that in this case EXECUTE WITH RECOMPILE alone would not save the -show, because there were several other problems in the procedure. I found no -choice but to have two procedures, one for the refresh and one for the delta. I replaced the -original procedure with a wrapper:

-
CREATE PROCEDURE memdb_get_transactions @transid int AS
-   IF coalesce(@transid, 0) = 0
-      EXECUTE memdb_get_transactions_refresh
-   ELSE
-   BEGIN
-      DECLARE @maxtransid int
-      SELECT @maxtransid = MAX(transid) FROM transactions
-      EXECUTE memdb_get_transactions_delta @transid, @maxtransid
-   END
-

I had to add @maxtransid as a parameter to the delta procedure, because with an open condition like WHERE -transid > @transid, SQL Server would tend to -miss-estimate the number of rows it had to read. Making the interval -closed addressed that issue, and by passing @maxtransid as a parameter, SQL -Server could sniff the value.

-

From a maintainability perspective, this is by means not a pleasant step to -take, not the least when the logic is as complicated as in this case. If you have -to do this, it is -important that you litter the code with comments to tell people that if they -change one procedure, they need to change the other one as well.

-

Note: a few years later, a colleague rewrote -memdb_get_transactions_refresh to become a second wrapper. As I mentioned, it -reads some system parameters to determine which transactions to read. To get -the refresh to perform decently, he found that he had to pass the values of these system -parameters, as well as the interval of transactions ids to read as parameters to -an inner procedure to get full benefit of parameter sniffing. (We were still on SQL 2000 at the time. In SQL 2005 or later OPTION (RECOMPILE) would have -achieved the same thing.)

-

Fixing Bad SQL

-

There may also be situations where the root cause to the problem is simply -poorly written SQL. As just one example, consider this query:

-
SELECT ...
-FROM   Orders
-WHERE  (CustomerID = @custid OR @custid IS NULL)
-  AND  (EmployeeID = @empid  OR @empid IS NULL)
-  AND  convert(varchar, OrderDate, 101) = convert(varchar, @orderdate, 101)
-

The idea is that users here are able to search orders for a given date, and -optionally they can also specify other search parameters. The programmer here -consdiders -that OrderDate may include a time portion, and factors it out by using a format -code to convert() that produces a string without time, and to be really sure he -performs the same operation on the input parameter. (In Northwind, OrderDate is -always without a time portion, but for the sake of the example, I'm assuming -that this is not the case.)

-

For this query, the index on OrderDate would be the obvious choice, but the -way the query is written, SQL Server cannot seek that index, because OrderDate is -entangled in an expression. This is sometimes referred to that the expression is -not sargable, where sarg is short for search argument, that is, -something that can be used as a seek predicate in a query. (Personally, I don't think -the term "sargable" is a very useful one, but since you see people drop it from -time to time, I figured that I should mention this piece of jargon.)

-

Since the index on OrderDate has been disqualified, the optimizer may settle -for any of the other indexes, depending on the input for the first parameter, -causing poor performance for other types of searches. The remedy is to rewrite -the query, for instance like:

-
SELECT ...
-FROM   Orders
-WHERE  (CustomerID = @custid OR @custid IS NULL)
-  AND  (EmployeeID = @empid  OR @empid IS NULL)
-  AND  OrderDate >= @orderdate
-  AND  OrderDate < dateadd(DAY, 1, @orderdate)
-

(It seems reasonable to assume that an input parameter which is supposed to be a date -does not have any time portion, so there is little reason to litter the code -with any extra conversion.)

-

Poorly written SQL, often manifests itself in general performance problems – -that is, the query always runs slow – and maybe not so often in situations where -parameter sniffing matters. Nevertheless, when you battle your parameter-sniffing problem, there is all reason to investigate whether the query could be -written in a way that avoids the dependency of the input parameter for a good -plan. There are many ways to write bad SQL, and this is not the place the list -them all. Hiding columns in an expression is just one example, albeit a common one. Sometimes the expression is hidden because it is due to implicit -conversion. Examine the plan, and when an index is not used as you would expect, go back and look at the query again.

-

How SQL Server Compiles Dynamic SQL

-

We leave the topic of parameter sniffing and to go back to the base topic for -this article: why a query may run slow in the application, yet fast in SQL -Server Management Studio. Hitherto we have only looked at stored procedures, and -with stored procedures the reason is most often due to different settings for -SET ARITHABORT. If you have an application that does not use stored procedures, -but generates the queries in the client or the middle layer, there are a few more -reasons why you may get a new cache entry when you run the query in SSMS and -maybe also a different plan than in the application.

-

What Is Dynamic SQL?

-

Dynamic SQL is any SQL which not part of a stored procedure (or any other -type of module). This includes:

- -

Dynamic SQL comes in two flavours, unparameterised and parameterised. In -unparameterised SQL, the programmer composes the SQL string by concatenating the -language elements with the parameter values. For instance, in T‑SQL:

-
SELECT @sql = 'SELECT mycol FROM tbl WHERE keycol = ' + convert(varchar, @value)
-EXEC(@sql)
-

Or in C#:

-
cmd.CommandText = "SELECT mycol FROM tbl WHERE keycol = " + value.ToString();
-

Unparameterised SQL is bad for several reasons, please see my article -The Curse and Blessings of Dynamic SQL for -a discussion on why.

-

In parameterised SQL, you pass parameters much like in a stored procedure. In -T‑SQL:

-
EXEC sp_executesql N'SELECT mycol FROM dbo.tbl WHERE keycol = @value',
-                   N'@value int', @value = @value
-

Or in C#:

-
cmd.CommandText = "SELECT mycol FROM dbo.tbl WHERE keycol = @value";
-cmd.Parameters.Add("@value", SqlDbType.Int);
-cmd.Parameters["@value"].Value = value;
-

The C# code results in a call to sp_executesql which looks exactly -like the T‑SQL example above.

-

For more details on sp_executesql, pleases see my article -The Curse and Blessings of Dynamic SQL.

-

Generating the Plan for Dynamic SQL

-

SQL Server compiles dynamic SQL very much in the same way as stored -procedures. That is, if the batch consists of more than one query, the entire batch -is nevertheless compiled as a whole, and SQL Server has no knowledge of the values -of local variables in the batch. As with stored procedures, SQL -Server sniffs the values of parameters, and uses these values when -building the query plan.

-

There is however one initial step in compilation which is unique dynamic SQL, -to wit parameterisation. That is, SQL Server may replace a constant in the query -with a parameter. For example, if you have:

-
SELECT * FROM Orders WHERE OrderID = 11000
-

SQL Server will compile this as you had submitted

-
EXEC sp_executesql N'SELECT * FROM Orders WHERE OrderID = @p1', N'@p1 int', @p1 = 11000
-

There are two modes of parameterisation, simple and forced. With simple -parameterisation, SQL Server only parameterises a fairly narrow class of simple -queries. With forced parameterisation, SQL Server replaces about all constants -with parameters, with some exceptions, as detailed in -this topic -in Books Online. The default mode is simple parameterisation, and you set the -mode per database with ALTER DATABASE.

-

Forced parameterisation can be a big performance saver for an application -that does not used parameterised statements, but there is little reason to use -it with well-written applications.

-

Dynamic SQL and the Plan Cache

-

Query plans for dynamic SQL are put into the plan cache, just like plans for -stored procedures. (If you hear someone telling you something else, that person -is either just confused or relying on very old information. Up to SQL Server 6.5, SQL Server did -not cache plans for dynamic SQL.) As with stored procedures, plans -for dynamic SQL may be flushed from the -cache for a number of reasons, and individual statements may be recompiled. -Furthermore, there may be more than one plan for the same query text -because of difference in SET options.

-

However, there are two complications with dynamic SQL which do not apply to -stored procedures.

-

The Query Text as Hash Key

-

When SQL Server looks up a stored procedure in the cache, it uses the name of -the procedure. But that is not possible with dynamic SQL, as there is no -name. Instead, SQL Server computes a hash from the query text – including any -parameter list – and uses this hash as a key in the plan cache. And here is -something very important: this hash value is computed without any normalisation -whatsoever of the batch text. Comments are not stripped. White space is not -trimmed or collapsed. Case is not forced to upper or lowercase, even if -the database has a case-insensitive collation. The hash is computed from the -text exactly as submitted, and any small difference will yield a different hash -and a different cache entry.

-

Run this with Include Actual Execution Plan enabled:

-
EXEC sp_executesql N'SELECT * FROM Orders WHERE OrderDate > @orderdate',
-                   N'@orderdate datetime', '20000101'
-EXEC sp_executesql N'SELECT * FROM Orders WHERE OrderDate > @orderdate',
-                   N'@orderdate datetime', '19980101'
-EXEC sp_executesql N'select * from Orders where OrderDate > @orderdate',
-                   N'@orderdate datetime', '19980101'
-

You will find that the first two calls use the same plan, Index Seek + Key -Lookup, whereas the third query uses a Clustered Index Scan. That is, the second -call reuses the plan created for the first call. But in the third call, the SQL -keywords are in lowercase, why there is no cache hit, and a new plan is created. Just to -enforce this fact, here is a second example with the same result.

-
DBCC FREEPROCCACHE
-go
-EXEC sp_executesql N'SELECT * FROM Orders WHERE OrderDate > @orderdate',
-                   N'@orderdate datetime', '20000101'
-EXEC sp_executesql N'SELECT * FROM Orders WHERE OrderDate > @orderdate',
-                   N'@orderdate datetime', '19980101'
-EXEC sp_executesql N'SELECT * FROM Orders WHERE OrderDate > @orderdate ',
-                   N'@orderdate datetime', '19980101'
-

The difference is that there is a single trailing space in the third statement.

-

The Significance of the Default Schema

-

The other difference to stored procedures is less obvious, and is best shown -with an example. Run this and look at the execution plans:

-
DBCC FREEPROCCACHE
-go
-CREATE SCHEMA Schema2
-go
-CREATE USER User1 WITHOUT LOGIN WITH DEFAULT_SCHEMA = dbo
-CREATE USER User2 WITHOUT LOGIN WITH DEFAULT_SCHEMA = Schema2
-GRANT SELECT ON Orders TO User1, User2
-GRANT SHOWPLAN TO User1, User2
-go
-EXEC sp_executesql N'SELECT * FROM Orders WHERE OrderDate > @orderdate',
-                   N'@orderdate datetime', '20000101'
-go
-EXECUTE AS USER = 'User1'
-EXEC sp_executesql N'SELECT * FROM Orders WHERE OrderDate > @orderdate',
-                   N'@orderdate datetime', '19980101'
-REVERT
-go
-EXECUTE AS USER = 'User2'
-EXEC sp_executesql N'SELECT * FROM Orders WHERE OrderDate > @orderdate',
-                   N'@orderdate datetime', '19980101'
-REVERT
-go
-DROP USER User1
-DROP USER User2
-DROP SCHEMA Schema2
-go
-

The first two executions use Index Seek + Key Lookup, whereas the third uses -Clustered Index Scan, despite the query and the parameter being identical to the -second query. What is going on?

-

First something about the setup. The script creates two database users and -grants them the permissions to run the queries. We run the query three times. -First as ourselves (presumably we are dbo), and then we impersonate the two -newly created users. (If you are not acquainted with impersonation, look up the topic for -EXECUTE AS -in Books Online; I also cover it in my article -Granting Permissions through Stored Procedures.) The users are -login-less, but that is only because we don't need any logins for this -example. What is important is -that they have different default schemas. User1 has dbo as its default schema, -but not User2. Why does this matter?

-

Keep in mind that when SQL Server looks up an object, it first looks in the -default schema of the user, and if the object is not found, it looks in -the dbo schema. For dbo and User1, the query is unambiguous, since dbo -is their default schema and this is the schema for the Orders table. But -for User2 this is different. Currently there is only dbo.Orders, but what if Schema2.Orders is added later? -Per the rules, User2 should now get data from that table and not from dbo.Orders. But -if User2 would use the same cache entry as dbo -and User1, that would not happen. Therefore, User2 -needs a cache entry of its own. If Schema2.Orders is added, that cache entry can -be invalidated without affecting other users.

-

We can see this is the plan attributes. Here is a variation of the query we -ran for stored procedures:

-
SELECT qs.plan_handle, a.attrlist
-FROM   sys.dm_exec_query_stats qs
-CROSS  APPLY sys.dm_exec_sql_text(qs.sql_handle) est
-CROSS  APPLY (SELECT epa.attribute + '=' + convert(nvarchar(127), epa.value) + '   '
-              FROM   sys.dm_exec_plan_attributes(qs.plan_handle) epa
-              WHERE  epa.is_cache_key = 1
-              ORDER  BY epa.attribute
-              FOR    XML PATH('')) AS a(attrlist)
-WHERE  est.text LIKE '%WHERE OrderDate > @orderdate%'
-  AND  est.text NOT LIKE '%sys.dm_exec_plan_attributes%'
-

There are three differences to the query for stored procedures:

-
    -
  1. There is no condition on db_id(), since this column is only populated for - sql_handles from stored procedures.
    2. -
  2. As there is no procedure name to match on, we have to use part of the - query text.
    3. -
  3. We need an extra condition to filter out the query against - sys.dm_exec_plan_attributes itself.
    4. -
-

When I ran this query, I saw this (partial) list of attributes:

-
date_first=7   date_format=1   dbid=6   objectid=158662399   set_options=251   user_id=5
-date_first=7   date_format=1   dbid=6   objectid=158662399   set_options=251   user_id=1
-

First look at objectid. As you see, this value is identical for the -two entries. This object id is the hash value that I described above. Next, look at the attribute which is -distinctive: user_id. The name as such is a misnomer; the value is the -default schema for the users using this plan. The dbo schema always has schema_id = 1. In my -Northwind database, Schema2 got schema_id = 5 when I ran the query, but you may -see a different value.

-

Now run this query:

-
EXEC sp_executesql N'SELECT * FROM dbo.Orders WHERE OrderDate > @orderdate',
-                   N'@orderdate datetime', '20000101'
-

And then run the query against sys.dm_exec_plan_attributes again. -A third row in the output appears:

-
date_first=7   date_format=1   dbid=6   objectid=549443125   set_options=251   user_id=-2
-

objectid is different from above, since the query text is different. -user_id is now --2. What does this mean? If you look closer at the query, you see now that we -now specify the schema explicitly when we access the Orders table. That is, the query is -now unambiguous, and all users can use this cache entry. And that is -exactly what user_id = -2 means: there are no ambiguous object references in the -query. The corollary of this is that it is very much best practice to always use -two-part notation in dynamic SQL, no matter whether you create the dynamic SQL -in a client program or in a stored procedure.

-

You may think that "we don't use schemas in our app, so this is not an issue -for us", but not so fast! When you use CREATE USER, the default schema for the -new user is indeed dbo, unless you specify something else. However, if the DBA -is of the old school, he may create users with any of the legacy procedures -sp_adduser and sp_grantdbaccess, and they work differently. They not -only create a user, but they also create a schema with the same name as the -user and set this schema as the default schema for the newly created user and -make this use the owner of the schema. Does it sound corny? Yes, but up to SQL 2000, schema and users -were unified in SQL Server. Since you may not have control over how users are -created, you should not rely on that users have dbo as their default schema.

-

Finally, you may wonder why this issue does not apply to the caching of plans for -stored procedures. The answer is that in a stored procedure, the name resolution -is always performed from the procedure owner, not the current user. That is, in -a procedure owned by dbo, Orders can only refer to dbo.Orders never to -any Orders table in some other schema. (But keep in mind that this applies only -to the direct query text of the stored procedure. It does not apply to dynamic -SQL invoked with EXEC() or sp_executesql inside the procedure.)

-

Running Application Queries in SSMS

-

As you understand from the previous section, there are a few more pitfalls -when you want to troubleshoot an application query from SSMS which may cause you -to get a different cache entry, and potentially a different query plan.

-

As with stored procedures, you need to keep ARITHABORT and other SET options -in mind. But you also need to make sure that you have exactly the same query -text, and that your default schema agrees with the user running the application.

-

The latter is the easiest to deal with. In most cases this will do:

-
EXECUTE AS USER = 'appuser'
-go
--- Run SQL here
-go
-REVERT
-

appuser is here the database user that the application uses – either a private user for the application, or the user name for the actual person using -the database. However, this fails if the query access resources outside the current database. In this case you can use EXECUTE AS LOGIN instead. -Note that this requires a server-level permission.

-

Retrieving the exact SQL text can be more difficult. The best is use a trace to capture the SQL; you can run the trace either in Profiler or -as a -server-side trace. If the SQL statement is unparameterised, you need to be careful that you copy the full text, and then select exactly that text in SSMS. That -is, do not drop or add any leading or trailing blanks. Don't add line breaks to -make the query more readable, and don't delete any comments. Keep it exactly as -the application runs it. You can use the query against sys.dm_exec_plan_attributes in this article to verify that you did -not add a second entry to the cache.

-

Another alternative is to get the text from sys.dm_exec_query_stats -and sys.dm_exec_sql_text. Here is a query you can use:

-
SELECT '<' + est.text + '>'
-FROM   sys.dm_exec_query_stats qs
-CROSS  APPLY sys.dm_exec_sql_text(qs.sql_handle) est
-WHERE  est.text LIKE '%some significant SQL text here%'
-

It is important that you run the query in text mode. In grid mode, SSMS -will replace line breaks with space. The angle brackets in the output is there -as delimiters, so that you can select the exact query text including any leading -or trailing blanks.

-

Parameterised SQL is easier to deal with, since the SQL statement is packaged in a character literal. That is, if you see -this in Profiler

-
EXEC sp_executesql N'SELECT * FROM Orders WHERE OrderDate > @orderdate',
-                   N'@orderdate datetime', '20000101'
-

It's no issue if you happen to change it to, say:

-
EXEC sp_executesql
-N'SELECT * FROM Orders WHERE OrderDate > @orderdate',
-N'@orderdate datetime', '20000101'
-

What is important is that you must not change anything of what is between the quotes of the two first parameters to sp_executesql, since this is what -the hash is computed from.

-

If you don't have any server-level permission – ALTER TRACE to run a trace, or VIEW SERVER STATE to query sys.dm_exec_query_stats and -sys.dm_exec_sql_text – it's starting to get difficult. If the dynamic SQL is produced in a stored procedure which you can edit, you can add a PRINT statement to get the text. (Actually, stored procedures -that produce dynamic SQL should -always have a @debug parameter and include the line: IF @debug = 1 PRINT @sql.) -You still have to be careful to get the exact text, and not add or drop any spaces. If there is a parameter list, you need to make sure -that you -copy the parameter -list exactly as well. If the SQL is produced by the application or by a .Net stored procedure, getting the SQL statement may be possible if you can run the application in a -debugger, but the exact text of the parameter list may be difficult to get at. The best bet may be try application against a database on a SQL -Server instance where you have all the required permissions, for instance on -your local workstation and get the query text this way.

-

Addressing Parameter-sniffing Problems in Dynamic SQL

-

The methods we looked at previously are applicable to dynamic SQL as well. There are few more things to make a note of, though.

-

The Effects of Auto-parameterisation

-

You can tell that a predicate has been parameterised by looking at the -operator properties. For instance, for this query

-
SELECT * FROM Orders WHERE OrderID = 11000
-

The Seek Predicate is:

-
Seek Keys[1]: Prefix: [Northwind].[dbo].[Orders].OrderID =
-Scalar Operator(CONVERT_IMPLICIT(int,[@1],0))
-

[@1] reveals that the query has been auto-parameterised.

-

Occasionally, the fact that SQL Server auto-parameterises a query, works against you. -Say that you have a query that goes:

-
SELECT ... FROM dbo.Orders WHERE Status = 'Delayed'
-

There is a filtered index on Status, which includes the value Delayed, -because Orders are generally not delayed. (There is no Status column in -Northwind; I had to make one up for the example.) But if SQL Server decides to -parameterise the query, the index cannot be used, because the plan must -accommodate for all possible values of the parameter.

-

There is not really any foolproof way to turn off any of the modes of -parameterisation, but there are some hacks. If the database is in simple -parameterisation, parameterisation only happens with very simple queries, for -instance only for one-table queries. The full list of conditions is not included -in Books Online, but one of the white papers listed in the section -Further Reading -includes a list. According to that list, it seems to sufficient to add a -condition like:

-
AND 1 = 1
-

to stop simple parameterisation from happening. But the anxious person asks -how we can trust that this does not change in a future release.

-

If the database is in forced parameterisation, there are two alternatives. -There is a list in Books Online in the -topic for forced -parameterisation which specifies when forced parameterisation is not -employed. One solution according to the list is to use OPTION (RECOMPILE), which -is OK as long as you can take the cost of compilation every time. Another -solution is to add a variable to the query:

-
DECLARE @x int
-SELECT ... FROM dbo.Orders WHERE Status = 'Delayed' AND @x IS NULL
-

Again, you may ask what could happen in a future version of SQL Server. It's -certainly an ugly hack.

-

Note: If you read the Query Hints topic in Books -Online, you will find that there is a hint to control parameterisation, but this -hint is only permitted in plan guides, which is the topic for the next section.

-

Plan Guides and Plan Freezing

-

Sometimes you may find that you want to modify a query to resolve a -performance issue by adding a hint of some sort. For a stored procedure, it is -not unlikely that you can edit the procedure and deploy the change fairly -immediately. But if the query is generated inside an application, it may be more -difficult. The entire executable has to be built and maybe be deployed to -all user machines. It is also likely that there is a mandatory QA step involved. -And if the application is a third-party application, changing it is out of the -question.

-

However, SQL Server provides a solution for these situations, to wit plan guides. There are two ways to set up plan guides, a general way, and a shortcut which is also known as plan freezing. General plan guides were introduced in SQL 2005, whereas plan freezing was added in SQL 2008.

-

Note: this feature is not available on the low-end editions of SQL Server – - Express, Web and Workgroup Edition.

-

Here is an example of a setting up plan guide. This particular example runs on SQL 2008 only:

-
DBCC FREEPROCCACHE
-go
-EXEC sp_executesql N'SELECT * FROM dbo.Orders WHERE OrderDate > @orderdate',
-                   N'@orderdate datetime', @orderdate = '19960101'
-go
-EXEC sp_create_plan_guide
-     @name = N'MyGuide',
-     @stmt = N'SELECT * FROM dbo.Orders WHERE OrderDate > @orderdate',
-     @type = N'SQL',
-     @module_or_batch = NULL,
-     @params = N'@orderdate datetime',
-     @hints =  N'OPTION (TABLE HINT (dbo.Orders , INDEX (OrderDate)))'
-go
-EXEC sp_executesql N'SELECT * FROM dbo.Orders WHERE OrderDate > @orderdate',
-                   N'@orderdate datetime', @orderdate = '19980101'
-go
-EXEC sp_control_plan_guide N'DROP', N'MyGuide'
-

In this example, I create a plan to ensure that a query against OrderDate always uses an Index Seek (maybe because I expect all queries to be for the last -few days or so). I specify a name for the guide. Next, I specify the exact statement for which the guide applies. As when you run a query in SSMS to investigate -it, you need to make sure that you do not add or lose any leading or trailing space, -nor must you make any other alteration. The parameter @type specifies that the guide is for -dynamic SQL and not for a stored procedure. Had the SELECT statement been part of a larger batch, I would have to specify the text of that batch -in the parameter @module_or_batch, again exactly as submitted from the -application. When I specify NULL for @module_or_batch, @stmt is assumed to be -the entire batch text. @params is the parameter list for the batch, and again -there must be an exact match character-by-character with what the application -submits.

-

Finally, @hints is where the fun is. In this example I specify that the query should always use the index on OrderDate, no matter the sniffed value for -@orderdate. This particular query hint, OPTION (TABLE HINT) is not available in -SQL 2005, and that is why the example does not run on that version.

-

In the script, the initial DBCC FREEPROCCACHE is only there to give us a clean slate. Also, for the purpose of the demo, I run the query with a parameter value that gives the "bad" plan, the Clustered Index Scan. Once the plan has been entered, it takes effect directly. That is, any current entry for the query is evicted from the cache.

-

On SQL 2008, you can specify the parameters to sp_create_plan_guide in any order as long as you name them, and you can leave out the N before the string literals. However, SQL 2005 -is far less forgiving. The parameters must be entered in the given order, even -if you name them, and you must specify the N before all the string literals.

-

In this example I used a plan guide to force an index, but you can use other hints as well, including the USE PLAN hint that permits you to specify the -complete query plan to use. Certainly not for the faint of heart!

-

...although that is exactly the idea with plan freezing. Say that you have a query that sways between two plans, one good and one bad, due to parameter sniffing, and there is not really any civilised way to get the bad plan out of the equation. Rather than battling with the complex parameters of sp_create_plan_guide, you can extract plan handle from the cache and feed it to the stored procedure sp_create_plan_guide_from_handle to force the plan you know is good. Here is a demo and example.

-
DBCC FREEPROCCACHE
-SET ARITHABORT ON
-go
-EXEC sp_executesql N'SELECT * FROM dbo.Orders WHERE OrderDate > @orderdate',
-                   N'@orderdate datetime', @orderdate = '19990101'
-go
-DECLARE @plan_handle varbinary(64),
-        @rowc int
-
-SELECT @plan_handle = plan_handle
-FROM   sys.dm_exec_query_stats qs
-CROSS  APPLY sys.dm_exec_sql_text(qs.sql_handle) est
-WHERE  est.text LIKE '%Orders WHERE OrderDate%'
-  AND  est.text NOT LIKE '%dm_exec_query_stats%'
-SELECT @rowc = @@rowcount
-
-IF @rowc = 1
-   EXEC sp_create_plan_guide_from_handle 'MyFrozenPlan', @plan_handle
-ELSE
-  RAISERROR('%d plans found in plan cache. Canno create plan guide', 16, 1, @rowc)
-go
--- Test it out!
-SET ARITHABORT OFF
-go
-EXEC sp_executesql N'SELECT * FROM dbo.Orders WHERE OrderDate > @orderdate',
-                   N'@orderdate datetime', @orderdate = '19960101'
-go
-SET ARITHABORT ON
-EXEC sp_control_plan_guide 'DROP', 'MyFrozenPlan'
-
-

For the purpose of the demo, I first clear the plan cache and set ARITHABORT to a known state. Then I run my query with a parameter that I know will give me the good plan. The next batch demonstrates how to use sp_create_plan_guide_from_handle. I first run a query against sys.dm_exec_query_stats and sys.dm_exec_sql_text to find the entry for my batch. Next I capture @@rowcount into a local variable (since @@rowcount is set after each statement, I prefer to copy it to a local variable in a SELECT that is directly attached to the query to avoid accidents). This is a safety precaution in case I get multiple matches or no matches in the cache. If I get exactly one match, I call sp_create_plan_guide_from_handle which takes two parameters: the name of the plan guide and the plan handle. And that's it!

-

The next part tests the guide. To make sure that I don't use the same cache entry, I use a different setting of ARITHABORT. If you run the demo with display of execution plan enabled, you will see that the second execution of the query uses the same plan with Index Seek + Key Lookup as the first, alhough the normal plan for the given parameter would be a Clustered Index Scan. That is, the plan guide is not dependent on certain SET options.

-

When you use this for real, you would run the query you want the plan guide for, only if the desired plan is not in the cache already. The query against the cache will require some craftmanship so that you get exactly one hit and the correct hit. An alternative may be to look at the matches in the query output in SSMS and copy and paste the plan handle.

-

A cool thing is that you don't have to set this up on the production server, but you can experiement on a lab server. The guide is stored in sys.plan_guides, so once you have the guide right, you can use the content there to craft a call to sp_create_plan_guide that you run the production server. You can also script the plan guide through Object Explorer in SSMS.

-

If you have a multi-statement batch or a stored procedure, you may not want to set up a guide for the entire batch, but only for a statement. For this reason sp_create_plan_guide_from_handle accepts a third parameter @statement_start_offset, a value you also can get from sys.dm_exec_query_stats.

-

This was just an introduction to plan guides and plan freezing. Plan guides is certainly an advanced feature, -and rather than making this article even longer I refer you to the - sections on plan guides in Books Online, or -to the white paper -listed in the section Further Reading below.

-

Overall, I see plan guides as a last resort. As I have said, they are fairly complex and there is a bit of a learning curve. Furthermore, a hint within a - query is easy to see and will stand out like a sore thumb the day it has become obsolete. But a plan guide may lie around, and one day - when reality has changed, the guide induces a bad query plan. But since you have -forgotten about the guide, you cannot understand why you get this bad plan. Plan freezing is easier to use, but keep in mind that with the smallest change in the query, the plan guide will no longer be matched by SQL Server.

-

Concluding Remarks

-

You have now learnt why a query may perform differently in the application -and in SSMS. You have also seen several ways to address issues with parameter -sniffing.

-

Did I include all reasons why there could be a performance difference between -the application and SSMS? Not all, there are certainly a few more reasons. For -instance, if the application runs on a remote machine, and you run SSMS directly -on the server, a slow network can make quite a difference. But I believe I have -captured the most likely reasons that are due to circumstances within SQL -Server.

-

Did I include all possible reasons why parameter sniffing may give you a bad -plan, and how you should address it? Probably not. There is room for more -variation there, and particularly I can't know what your applicaton is doing. -But hopefully some of the methods I have presented you can help you to find a -solution.

-

If you think that you have stumbled on something which is not -covered in the article, but you think I should have included, please drop me a -line at esquel@sommarskog.se. And the -same applies if you see any errors, not the least spelling or grammar errors. On the other -hand, if you have a question how to solve a particular problem, I recommend you -to post a question to an SQL Server forum, because a lot more people will see -your question. If you absolutely want me to see the question, post to Microsoft's -Transact-SQL -forum, and mail me the link (because there is too much traffic for me to read it -all).

-

Further Reading

-

If you want learn more about query compilation, statistics etc, here are a few articles that I like to recommend:

-

Statistics Used by the Query Optimizer in Microsoft SQL Server 2008 -– A white paper written by Eric Hanson and Yavor Angelov from the SQL Server team. There is also a -version for SQL 2005.

-

Plan Caching in SQL Server 2008 – A white paper written by SQL -Server MVP Greg Low. Appendix A in this paper details the rules for simple -parameterisation. There is an older - -version for SQL 2005, written by Arum Marathe.

-

-Troubleshooting Performance Problems in SQL Server 2008 – An -extensive document, which looks at performance from several angles, not only query tuning. Written by a number of developers and CSS people from -Microsoft. There is also a version for SQL 2005.

-

-Forcing Query Plans -– A white paper about plan guides. This version is for SQL 2005; I have not seen -any version for SQL 2008.

-

Revisions

-

2013-08-30 – Corrected an error in the function setoptions that Alex Valen was kind to point out.

-

2013-04-14 – Updated the section An Issue with Linked Servers to reflect that this gotcha has been removed with SQL 2012 SP1. Also added a note on SET NO_BROWSETABLE ON to the section The Story so Far.

-

2011-12-31 – Added some text about SQL Server Agent which runs with QUOTED_IDENTIFER OFF by default. Extended the section on Plan Guides to also gover plan freezing.

-

2011-11-27 – Several of the links in the section Further Reading were broken. This has been fixed.

-

2011-07-02 – There is now a Russian translation available. Kudos to Dima Piliugin for this work!

-

2011-06-25 – Added a section An Issue with Linked Servers to discuss a special problem that may cause the situation Slow in the application, fast in SSMS.

-

2011-02-20 – First version.

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Types](https://msdn.microsoft.com/en-us/library/ms131120(SQL.100).aspx) + - [CLR Stored Procedures](https://msdn.microsoft.com/en-us/library/ms131094(SQL.100).aspx) + - [CLR Triggers](https://msdn.microsoft.com/en-us/library/ms131093(SQL.100).aspx) + - [SQL# CLR functions](https://SQLsharp.com/) (by Sql Quantum Lift) + +The common language runtime (CLR) is the heart of the Microsoft .NET Framework and provides the execution environment for all .NET Framework code. Code that runs within the CLR is referred to as managed code. The CLR provides various functions and services required for program execution, including just-in-time (JIT) compilation, allocating and managing memory, enforcing type safety, exception handling, thread management, and security. + +With the CLR hosted in Microsoft SQL Server (called CLR integration), you can author stored procedures, triggers, user-defined functions, user-defined types, and user-defined aggregates in managed code. Because managed code compiles to native code prior to execution, you can achieve significant performance increases in some scenarios. + +Enabling CLR Integration: + +```tsql +EXEC sp_configure 'clr enabled', 1; +RECONFIGURE; +GO +``` diff --git a/CLR/SQLsharp_SETUP.sql b/CLR/SQLsharp_SETUP.sql deleted file mode 100644 index 18e41c25..00000000 --- a/CLR/SQLsharp_SETUP.sql +++ /dev/null @@ -1,690 +0,0 @@ - -/* - ******************************************************************** - * - * SQL# (SQLsharp) - * Copyright (c) 2006-2014 Sql Quantum Leap, LLC - * All Rights Reserved. - * - * JsonFx code: - * Copyright (c) 2006-2009 Stephen M. McKamey - * All rights reserved. - * - * SgmlReader code: - * Copyright (c) 2002 Microsoft Corporation. All rights reserved. (Chris Lovett) - * Copyright (c) 2007-2008 MindTouch. All rights reserved. - * - * Twitterizer code: - * Copyright (c) 2008, Patrick "Ricky" Smith . All rights reserved. - * Copyright (c) 2011-2014, Sql Quantum Leap, LLC. All rights reserved. - * - * http://www.SQLsharp.com/ - * - * Version: 3.3.83 (Free) - * - ******************************************************************** -*/ -SET ANSI_NULLS ON; -SET QUOTED_IDENTIFIER ON; -GO - -/****************************************************************** - ****************************************************************** - *** - *** INSTRUCTIONS: - *** - *** 1) Replace {replace_with_DB_name} in the USE statement with - *** the name of the Database where SQL# should be installed (line 44) - *** - *** 2) Change any of the default settings (lines 61 - 71) - *** - ****************************************************************** - ******************************************************************/ - -USE [{replace_with_DB_name}]; /* replace the DB name and remove this comment starting with the "/*" at the left -GO - - -DECLARE @SQLsharpSchema sysname, - @SQLsharpLogin sysname, - @AllowExternalAccess BIT, - @AllowUnrestrictedAccess BIT; - -DECLARE @InstallSQL#DB BIT, - @InstallSQL#JsonFx BIT, - @InstallSQL#Network BIT, - @InstallSQL#OS BIT, - @InstallSQL#SgmlReader BIT, - @InstallSQL#Twitterizer BIT, - @InstallSQL#TypesAndAggregates BIT; - -SET @SQLsharpSchema = N'SQL#'; -- Change this value to install SQL# into a different Schema -SET @SQLsharpLogin = N'SQL#'; -SET @AllowExternalAccess = 1; -SET @AllowUnrestrictedAccess = 1; -- If 1 then @AllowExternalAccess will = 1 even if set to 0 above -SET @InstallSQL#DB = 1; -SET @InstallSQL#JsonFx = 1; -- Required by SQL#.Twitterizer -SET @InstallSQL#Network = 1; -- Required by SQL#.DB -SET @InstallSQL#OS = 1; -SET @InstallSQL#SgmlReader = 1; -SET @InstallSQL#Twitterizer = 1; -SET @InstallSQL#TypesAndAggregates = 1; -- Required by SQL#.Twitterizer and SQL#.Network - ------------------------------------ -DECLARE @IsSQLServer2005 NVARCHAR(50); -SET @IsSQLServer2005 = CASE WHEN @@VERSION LIKE N'Microsoft SQL Server 2005%' THEN N'UN' ELSE '' END; - -IF (OBJECT_ID(N'tempdb..#SQLsharpOptions') IS NULL) -BEGIN - CREATE TABLE #SQLsharpOptions ([Option] NVARCHAR(50) COLLATE database_default, [Value] VARCHAR(50)); -END; - -RAISERROR(N'Capturing current Assembly permissions...', 0, 0) WITH NOWAIT; -INSERT INTO #SQLsharpOptions ([Option], [Value]) - SELECT sa.name, CASE sa.permission_set_desc - WHEN N'SAFE_ACCESS' THEN 'SAFE' - WHEN N'UNSAFE_ACCESS' THEN 'UNSAFE' - ELSE sa.permission_set_desc - END - FROM sys.assemblies sa - LEFT JOIN #SQLsharpOptions sso - ON sso.[Option] = sa.name --COLLATE database_default - WHERE sa.name LIKE N'SQL#%' - AND sso.[Value] IS NULL - --AND sa.permission_set_desc <> N'SAFE_ACCESS' - ; -RAISERROR('', 0, 0) WITH NOWAIT; ------------------------------------ - - -BEGIN TRY - - --- - --- CLR must be enabled - --- - IF EXISTS ( - SELECT 1 - FROM sys.configurations conf - WHERE conf.configuration_id = 1562 -- "clr enabled" - AND conf.value_in_use = 0 - ) - BEGIN - PRINT 'Enabling the CLR ...'; - PRINT ''; - - EXEC(N'EXEC sp_configure ''clr enabled'', 1;'); - - -- Uncomment the WITH OVERRIDE if you get the "ad hoc changes are not allowed" error - EXEC(N'RECONFIGURE --WITH OVERRIDE'); - END; - ELSE - BEGIN - PRINT 'CLR already enabled; skipping'; - PRINT ''; - END; - - - --- - --- Make sure that the Login desired to own SQL# exists - --- - IF (NOT EXISTS ( - SELECT * - FROM [master].sys.server_principals sp - WHERE sp.name = @SQLsharpLogin - ) - ) - BEGIN - PRINT ''; - PRINT 'Login [' + @SQLsharpLogin + '] does not exist ...'; - - IF (NOT EXISTS( - SELECT * - FROM [master].sys.assemblies sa - WHERE sa.name = N'SQL#.Certificate' - ) - ) - BEGIN - PRINT 'Creating temporary Assembly ...'; - EXEC(N'USE [master]; - CREATE ASSEMBLY [SQL#.Certificate] - AUTHORIZATION [dbo] - FROM 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- WITH PERMISSION_SET = SAFE;'); - END; - - - IF (NOT EXISTS( - SELECT * - FROM [master].sys.asymmetric_keys ak - WHERE ak.name = N'SQL#Key' - ) - ) - BEGIN - PRINT 'Creating Asymmetric Key: [SQL#Key] ...'; - EXEC(N'USE [master]; - CREATE ASYMMETRIC KEY [SQL#Key] FROM ASSEMBLY [SQL#.Certificate];'); - END; - - - IF (NOT EXISTS( - SELECT * - FROM [master].sys.server_principals sp - WHERE sp.name = @SQLsharpLogin - AND sp.[type] = N'K' -- ASYMMETRIC_KEY_MAPPED_LOGIN - ) - ) - BEGIN - PRINT 'Creating Login: [' + @SQLsharpLogin + '] ...'; - EXEC(N'USE [master]; - CREATE LOGIN [' + @SQLsharpLogin + N'] FROM ASYMMETRIC KEY [SQL#Key];'); - END; - - - IF (@AllowExternalAccess = 1 OR @AllowUnrestrictedAccess = 1) - BEGIN - PRINT 'Granting ExternalAccess ...'; - EXEC(N'USE [master]; - GRANT EXTERNAL ACCESS ASSEMBLY TO [' + @SQLsharpLogin + N'];'); - END; - - - IF (@AllowUnrestrictedAccess = 1) - BEGIN - PRINT 'Granting UnrestrictedAccess ...'; - EXEC(N'USE [master]; - GRANT UNSAFE ASSEMBLY TO [' + @SQLsharpLogin + N'];'); - END; - - - PRINT 'Dropping temporary Assembly ...'; - EXEC(N'USE [master]; - DROP ASSEMBLY [SQL#.Certificate];'); - - PRINT 'Login Created.'; - PRINT ''; - END; - ELSE - BEGIN - PRINT N'Login [' + @SQLsharpLogin + N'] already exists; skipping'; - PRINT ''; - END; - - - --- - --- Make sure that the database where SQL# will be installed has a User based on the Login - --- - IF (NOT EXISTS ( - SELECT * - FROM sys.database_principals dp - WHERE dp.name = @SQLsharpLogin - ) - ) - BEGIN - PRINT ''; - PRINT N'Creating User: [' + @SQLsharpLogin + N'] ...'; - - EXEC(N'CREATE USER [' + @SQLsharpLogin + N'] FOR LOGIN [' + @SQLsharpLogin + N'];'); - END; - ELSE - BEGIN - IF (NOT EXISTS( - SELECT * - FROM [master].sys.server_principals sp - INNER JOIN sys.database_principals dp - ON dp.[sid] = sp.[sid] - WHERE sp.[type] = N'K' -- ASYMMETRIC_KEY_MAPPED_LOGIN - AND sp.name = @SQLsharpLogin - ) - ) - BEGIN - RAISERROR(N'User [%s] exists but does not match the system Login of the same name. Please fix.', 16, 1, @SQLsharpLogin); - END; - - PRINT N'User [' + @SQLsharpLogin + N'] already exists in [' + DB_NAME() + N']; skipping'; - PRINT ''; - END; - - - - -- Make sure we either complete successfully or nothing is changed - BEGIN TRAN; - - --- - --- If SQL# already exists, uninstall it - --- - DECLARE @CurrentSQLsharpSchema sysname; - - SELECT @CurrentSQLsharpSchema = routine.ROUTINE_SCHEMA - FROM INFORMATION_SCHEMA.ROUTINES routine - WHERE routine.SPECIFIC_NAME = N'SQLsharp_Uninstall'; - - IF (@CurrentSQLsharpSchema IS NOT NULL) - BEGIN - EXEC(N' - INSERT INTO #SQLsharpOptions ([Option], [Value]) - SELECT N''PriorVersion'' AS [Option], [' + @CurrentSQLsharpSchema + N'].[SQLsharp_Version]() AS [Value] - WHERE NOT EXISTS (SELECT * FROM #SQLsharpOptions WHERE [Option] = N''PriorVersion''); - '); - EXEC(N'PRINT N''Uninstalling previous install of SQL#: '' + [' + @CurrentSQLsharpSchema + N'].[SQLsharp_Version]() + N'' . . .'';'); - EXEC(N'EXEC [' + @CurrentSQLsharpSchema + N'].[SQLsharp_Uninstall];'); - PRINT 'SQL# Uninstalled'; - PRINT ''; - END; - - --- - --- Make sure that the Schema desired to hold SQL# exists - --- - IF NOT EXISTS ( - SELECT * - FROM INFORMATION_SCHEMA.SCHEMATA schemas - WHERE schemas.SCHEMA_NAME = @SQLsharpSchema - ) - BEGIN - PRINT ''; - PRINT N'Creating Schema: [' + @SQLsharpSchema + N'] ...'; - - EXEC(N'CREATE SCHEMA [' + @SQLsharpSchema + N'] AUTHORIZATION [' + @SQLsharpLogin + N'];'); - - PRINT 'Schema Created'; - PRINT ''; - END; - ELSE - BEGIN - PRINT N'Schema [' + @SQLsharpSchema + N'] already exists; skipping'; - PRINT ''; - END; - - --- - --- Create the main SQL# Assembly - --- - PRINT 'Creating SQL# Assembly ...'; - - EXEC(N' - CREATE ASSEMBLY [SQL#] - AUTHORIZATION [' + @SQLsharpLogin + N'] -FROM 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- WITH PERMISSION_SET = SAFE; - '); - PRINT 'SQL# Assembly Created.'; - PRINT ''; - - - IF (@InstallSQL#TypesAndAggregates = 1 OR @InstallSQL#Twitterizer = 1 OR @InstallSQL#Network = 1) - BEGIN - PRINT 'Creating SQL#.TypesAndAggregates Assembly ...'; - EXEC(N' - CREATE ASSEMBLY [SQL#.TypesAndAggregates] - AUTHORIZATION [' + @SQLsharpLogin + N'] -FROM 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- WITH PERMISSION_SET = SAFE; - '); - PRINT 'SQL#.TypesAndAggregates Assembly Created.'; - END; - ELSE - BEGIN - PRINT 'Skipping install of SQL#.TypesAndAggregates Assembly.'; - END; - PRINT ''; - - - IF (@InstallSQL#JsonFx = 1 OR @InstallSQL#Twitterizer = 1) - BEGIN - PRINT 'Creating SQL#.JsonFx Assembly ...'; - EXEC(N' - CREATE ASSEMBLY [SQL#.JsonFx] - AUTHORIZATION [' + @SQLsharpLogin + N'] -FROM 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- WITH PERMISSION_SET = ' + @IsSQLServer2005 + N'SAFE; - '); - PRINT 'SQL#.JsonFx Assembly Created.'; - END; - ELSE - BEGIN - PRINT 'Skipping install of SQL#.JsonFx Assembly.'; - END; - PRINT ''; - - - IF (@InstallSQL#Network = 1 OR @InstallSQL#DB = 1) - BEGIN - PRINT 'Creating SQL#.Network Assembly ...'; - EXEC(N' - CREATE ASSEMBLY [SQL#.Network] - AUTHORIZATION [' + @SQLsharpLogin + N'] -FROM 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- WITH PERMISSION_SET = SAFE; - '); - PRINT 'SQL#.Network Assembly Created.'; - END; - ELSE - BEGIN - PRINT 'Skipping install of SQL#.Network Assembly.'; - END; - PRINT ''; - - - IF (@InstallSQL#DB = 1) - BEGIN - PRINT 'Creating SQL#.DB Assembly ...'; - EXEC(N' - CREATE ASSEMBLY [SQL#.DB] - AUTHORIZATION [' + @SQLsharpLogin + N'] -FROM 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- WITH PERMISSION_SET = SAFE; - '); - PRINT 'SQL#.DB Assembly Created.'; - END; - ELSE - BEGIN - PRINT 'Skipping install of SQL#.DB Assembly.'; - END; - PRINT ''; - - - IF (@InstallSQL#OS = 1) - BEGIN - PRINT 'Creating SQL#.OS Assembly ...'; - EXEC(N' - CREATE ASSEMBLY [SQL#.OS] - AUTHORIZATION [' + @SQLsharpLogin + N'] -FROM 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- WITH PERMISSION_SET = SAFE; - '); - PRINT 'SQL#.OS Assembly Created.'; - END; - ELSE - BEGIN - PRINT 'Skipping install of SQL#.OS Assembly.'; - END; - PRINT ''; - - - IF (@InstallSQL#Twitterizer = 1) - BEGIN - PRINT 'Creating SQL#.Twitterizer Assembly ...'; - EXEC(N' - CREATE ASSEMBLY [SQL#.Twitterizer] - AUTHORIZATION [' + @SQLsharpLogin + N'] -FROM 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- WITH PERMISSION_SET = ' + @IsSQLServer2005 + N'SAFE; - ') - PRINT 'SQL#.Twitterizer Assembly Created.'; - END; - ELSE - BEGIN - PRINT 'Skipping install of SQL#.Twitterizer Assembly.'; - END; - PRINT ''; - - - IF (@InstallSQL#SgmlReader = 1) - BEGIN - PRINT 'Creating SQL#.SgmlReader Assembly ...'; - EXEC(N' - CREATE ASSEMBLY [SQL#.SgmlReader] - AUTHORIZATION [' + @SQLsharpLogin + N'] -FROM 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- WITH PERMISSION_SET = SAFE; - '); - PRINT 'SQL#.SgmlReader Assembly Created.'; - END; - ELSE - BEGIN - PRINT 'Skipping install of SQL#.SgmlReader Assembly.'; - END; - PRINT ''; - - - IF NOT EXISTS ( - SELECT 1 - FROM sys.module_assembly_usages mau - INNER JOIN sys.assemblies asmbly - ON asmbly.assembly_id = mau.assembly_id - AND asmbly.name = N'SQL#' - INNER JOIN sys.objects so - ON so.[object_id] = mau.[object_id] - WHERE so.name = N'SQLsharp_Setup' - ) - BEGIN - PRINT 'Creating Setup Procedure ...'; - PRINT ''; - EXEC(N'CREATE PROCEDURE [' + @SQLsharpSchema + N'].[SQLsharp_Setup] @SQLsharpSchema sysname = ''' + @SQLsharpSchema + N''', @SQLsharpAssembly sysname = NULL, @JustPrintSQL BIT = 0 WITH EXECUTE AS CALLER AS EXTERNAL NAME [SQL#].[SQLsharp].[Setup];'); - PRINT 'Setup Procedure Created'; - PRINT ''; - END; - ELSE - BEGIN - PRINT 'Setup Procedure already exists; skipping ...'; - PRINT ''; - END; - - - PRINT 'Running Setup Procedure ...'; - EXEC (N'EXEC [' + @SQLsharpSchema + N'].[SQLsharp_Setup]'); - - - PRINT ''; - PRINT 'Setup Procedure Completed'; - PRINT ''; - ------------------------------------ - IF (EXISTS(SELECT * FROM #SQLsharpOptions sso WHERE sso.[Option] LIKE N'SQL#%')) - BEGIN - - -- account for pre-Version 3.0.x where INET, FileSystem, and DB groups were in main SQL# Assembly - IF (EXISTS( - SELECT * - FROM #SQLsharpOptions - WHERE [Option] = N'PriorVersion' - AND LEFT([Value], 2) IN ('1.', '2.') - ) - AND EXISTS( - SELECT * - FROM #SQLsharpOptions - WHERE [Option] = N'SQL#' - AND [Value] = 'EXTERNAL_ACCESS' - ) - ) - BEGIN - EXEC(N' - INSERT INTO #SQLsharpOptions ([Option], [Value]) - SELECT module.SplitVal AS [Option], ''EXTERNAL_ACCESS'' AS [Value] - FROM [' + @CurrentSQLsharpSchema + N'].String_Split(N''SQL#.Network,SQL#.FileSystem,SQL#.DB'', N'','', 1) module - LEFT JOIN #SQLsharpOptions tmp - ON tmp.[Option] = module.SplitVal - WHERE tmp.[Option] IS NULL; - - '); - END; - - - DECLARE @Option NVARCHAR(50), - @Value VARCHAR(50); - - DECLARE opt_cur CURSOR STATIC LOCAL FOR - SELECT sso.[Option], sso.[Value] - FROM #SQLsharpOptions sso - INNER JOIN sys.assemblies sa - ON sa.[name] = sso.[Option] --COLLATE database_default - WHERE sso.[Option] LIKE N'SQL#%' - AND sso.[Value] <> 'SAFE' - ORDER BY sa.[name]; - - OPEN opt_cur; - - FETCH NEXT - FROM opt_cur - INTO @Option, @Value; - - WHILE (@@FETCH_STATUS = 0) - BEGIN - RAISERROR(N'Resetting [%s] permissions to be: %s ...', 0, 0, @Option, @Value) WITH NOWAIT; - EXEC (N'ALTER ASSEMBLY [' + @Option + N'] WITH PERMISSION_SET = ' + @Value); - - FETCH NEXT - FROM opt_cur - INTO @Option, @Value; - END; - - CLOSE opt_cur; - DEALLOCATE opt_cur; - END; ------------------------------------ - - - PRINT ''; - PRINT 'SQL# Installed!!'; - PRINT ''; - - COMMIT TRAN; - - -END TRY -BEGIN CATCH - - IF (@@TRANCOUNT > 0) - BEGIN - PRINT 'Rolling back the TRANSACTION...'; - ROLLBACK TRAN; - PRINT 'Done.'; - END; - - IF (CURSOR_STATUS('local', 'opt_cur') >= 0) - BEGIN - PRINT 'Closing / Deallocating the CURSOR...'; - CLOSE opt_cur; - DEALLOCATE opt_cur; - PRINT 'Done.'; - END; - - DECLARE @ErrorMessage NVARCHAR(MAX); - SET @ErrorMessage = N'Line ' + CONVERT(NVARCHAR(20), ERROR_LINE()) - + N', Msg ' + CONVERT(NVARCHAR(20), ERROR_NUMBER()) - + N': ' + ERROR_MESSAGE(); - RAISERROR(@ErrorMessage, 16, 1); - PRINT ''; - PRINT ''; - RAISERROR(N'SQL# did NOT install successfully. Please see error messages above.', 16, 1); - RETURN; - -END CATCH; - - --- If this is a BETA copy, display the Expiration Date. -IF (OBJECT_ID('SQL#.SQLsharp_ExpirationDate') IS NOT NULL) -BEGIN - PRINT ''; - EXEC (N'PRINT N''This BETA of SQL# version '' + [' + @SQLsharpSchema + N'].[SQLsharp_Version]() + N'' expires on: '' + CONVERT(NVARCHAR(30), [' + @SQLsharpSchema + N'].[SQLsharp_ExpirationDate](), 121);'); - PRINT ''; - PRINT ''; -END -GO - --- Make sure that the transaction is cleaned up, just in case an error aborts the batch -IF (@@TRANCOUNT > 0) -BEGIN; - PRINT 'For some reason the CATCH block was skipped but the TRANSACTION is still open; rolling back...'; - ROLLBACK TRAN; - PRINT 'Done.'; -END; -GO - diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md new file mode 100644 index 00000000..4db847e1 --- /dev/null +++ b/CONTRIBUTING.md @@ -0,0 +1,111 @@ +# Contributing to the SQL Server Kit +Please take a moment to review this document in order to make the contribution +process easy and effective for everyone involved. + +Following these guidelines will help us get back to you more quickly, and will +show that you care about making MySQLTuner better just like we do. In return, we'll +do our best to respond to your issue or pull request as soon as possible with +the same respect. + +_**Please Note:** These guidelines are adapted from [@necolas](https://github.com/necolas)'s +[issue-guidelines](https://github.com/necolas/issue-guidelines) and serve as +an excellent starting point for contributing to any open source project._ + + +## Feature requests + + +Feature requests are welcome. But take a moment to find out whether your idea +fits with the scope and aims of the project. It's up to *you* to make a strong +case to convince the project's developers of the merits of this feature. Please +provide as much detail and context as possible. + +Building something great means choosing features carefully especially because it +is much, much easier to add features than it is to take them away. Additions + will be evaluated on a combination of scope (how well it fits into the +project), maintenance burden and general usefulness. + +Creating something great often means saying no to seemingly good ideas. Don't +despair if your feature request isn't accepted, take action! Fork the +repository, build your idea and share it with others. We released this project under +the [LICENSE] for this purpose precisely. Open source works best when smart +and dedicated people riff off of each others' ideas to make even greater things. + + +## Pull requests + + +Good pull requests — patches, improvements, new features — are a fantastic help. +They should remain focused in scope and avoid containing unrelated commits. + +**Please ask first** before embarking on any significant pull request (e.g. +implementing features, refactoring code, porting to a different language), +otherwise you risk spending a lot of time working on something that the +project's developers might not want to merge into the project. You can solicit +feedback and opinions in an open feature request thread or create a new one. + +Please use the [git flow for pull requests](#git-flow) and follow SQL Server KIT +[code conventions](#code-conventions) before submitting your work. + + +## Git Flow for pull requests + + +1. [Fork] the project, clone your fork, and configure the remotes: + + ```bash + # Clone your fork of the repo into the current directory + git clone git@github.com:/sqlserver-kit.git + # Navigate to the newly cloned directory + cd sqlserver-kit + # Assign the original repo to a remote called "upstream" + git remote add upstream https://github.com/ktaranov/sqlserver-kit + ``` + +2. If you cloned a while ago, get the latest changes from upstream: + + ```bash + git checkout master + git pull upstream master + ``` + +3. Create a new topic branch (off the main project development branch) to + contain your feature, change, or fix: + + ```bash + git checkout -b + ``` + +4. Commit your changes in logical chunks. Please adhere to these [git commit message guidelines] + or your code is unlikely be merged into the main project. Use Git's [interactive rebase] + feature to tidy up your commits before making them public. + +5. Locally merge (or rebase) the upstream development branch into your topic branch: + + ```bash + git pull [--rebase] upstream master + ``` + +6. Push your topic branch up to your fork: + + ```bash + git push origin + ``` + +7. [Open a Pull Request] with a clear title and description. + +**IMPORTANT**: By submitting a patch, you agree to allow the project owner to license your work under the MIT [LICENSE] + + +## SQL Server KIT Code Conventions + + +Check [code convention] + + +[Fork]:https://help.github.com/articles/fork-a-repo/ +[git commit message guidelines]:http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html +[interactive rebase]:https://help.github.com/articles/about-git-rebase/ +[Open a Pull Request]:https://help.github.com/articles/about-pull-requests/ +[LICENSE]:https://github.com/ktaranov/sqlserver-kit/blob/master/LICENSE.md +[code convention]:https://github.com/ktaranov/sqlserver-kit/blob/master/SQL%20Server%20Name%20Convention%20and%20T-SQL%20Programming%20Style.md diff --git a/Errors/Backup/Be aware of 701 error if you use memory optimized table variable in a loop.maff b/Errors/Backup/Be aware of 701 error if you use memory optimized table variable in a loop.maff new file mode 100644 index 00000000..2a3d673a Binary files /dev/null and b/Errors/Backup/Be aware of 701 error if you use memory optimized table variable in a loop.maff differ diff --git "a/Errors/Backup/CREATE DATABASE \342\200\223 I\342\200\231ve not seen that before..maff" "b/Errors/Backup/CREATE DATABASE \342\200\223 I\342\200\231ve not seen that before..maff" new file mode 100644 index 00000000..57e6dc77 Binary files /dev/null and "b/Errors/Backup/CREATE DATABASE \342\200\223 I\342\200\231ve not seen that before..maff" differ diff --git a/Errors/Backup/Case study Troubleshooting Doomed Transactions.maff b/Errors/Backup/Case study Troubleshooting Doomed Transactions.maff new file mode 100644 index 00000000..9fdfd481 Binary files /dev/null and b/Errors/Backup/Case study Troubleshooting Doomed Transactions.maff differ diff --git a/Errors/Backup/Compressed backup errors and TF 3042.maff b/Errors/Backup/Compressed backup errors and TF 3042.maff new file mode 100644 index 00000000..b4048a77 Binary files /dev/null and b/Errors/Backup/Compressed backup errors and TF 3042.maff differ diff --git a/Errors/Backup/Nuance of datetime data type in SQL Server.maff b/Errors/Backup/Nuance of datetime data type in SQL Server.maff new file mode 100644 index 00000000..c845e20a Binary files /dev/null and b/Errors/Backup/Nuance of datetime data type in SQL Server.maff differ diff --git a/Errors/Backup/SQL SERVER - Disabling 15000 Partitions (15k).maff b/Errors/Backup/SQL SERVER - Disabling 15000 Partitions (15k).maff new file mode 100644 index 00000000..acad7d3a Binary files /dev/null and b/Errors/Backup/SQL SERVER - Disabling 15000 Partitions (15k).maff differ diff --git a/Errors/Backup/SQL SERVER - FIX Error Msg 8672 - The MERGE Statement Attempted to UPDATE or DELETE the Same Row More Than Once.maff b/Errors/Backup/SQL SERVER - FIX Error Msg 8672 - The MERGE Statement Attempted to UPDATE or DELETE the Same Row More Than Once.maff new file mode 100644 index 00000000..8d22d2e7 Binary files /dev/null and b/Errors/Backup/SQL SERVER - FIX Error Msg 8672 - The MERGE Statement Attempted to UPDATE or DELETE the Same Row More Than Once.maff differ diff --git a/Errors/Backup/SQL SERVER - FIX Error 913, Severity 16 - Could Not Find Database ID 3. Database May Not be Activated Yet or May be in Transition.maff b/Errors/Backup/SQL SERVER - FIX Error 913, Severity 16 - Could Not Find Database ID 3. Database May Not be Activated Yet or May be in Transition.maff new file mode 100644 index 00000000..cd77e956 Binary files /dev/null and b/Errors/Backup/SQL SERVER - FIX Error 913, Severity 16 - Could Not Find Database ID 3. Database May Not be Activated Yet or May be in Transition.maff differ diff --git a/Errors/Backup/SQL SERVER - Logon Failure The User has not Been Granted the Requested Logon Type at This Computer.maff b/Errors/Backup/SQL SERVER - Logon Failure The User has not Been Granted the Requested Logon Type at This Computer.maff new file mode 100644 index 00000000..942d63f0 Binary files /dev/null and b/Errors/Backup/SQL SERVER - Logon Failure The User has not Been Granted the Requested Logon Type at This Computer.maff differ diff --git a/Errors/Backup/SQL Server 2016 Online ALTER COLUMN Operation.maff b/Errors/Backup/SQL Server 2016 Online ALTER COLUMN Operation.maff new file mode 100644 index 00000000..cfb42900 Binary files /dev/null and b/Errors/Backup/SQL Server 2016 Online ALTER COLUMN Operation.maff differ diff --git "a/Errors/Backup/Unable to restore a backup \342\200\223 Msg 3241.maff" "b/Errors/Backup/Unable to restore a backup \342\200\223 Msg 3241.maff" new file mode 100644 index 00000000..293d82cf Binary files /dev/null and "b/Errors/Backup/Unable to restore a backup \342\200\223 Msg 3241.maff" differ diff --git a/Errors/Backup/Who owns your availability groups.maff b/Errors/Backup/Who owns your availability groups.maff new file mode 100644 index 00000000..68ffb564 Binary files /dev/null and b/Errors/Backup/Who owns your availability groups.maff differ diff --git a/Errors/README.md b/Errors/README.md index 67096dd4..c29b0af1 100644 --- a/Errors/README.md +++ b/Errors/README.md @@ -3,18 +3,217 @@ ## Useful links - [System Error Messages](https://technet.microsoft.com/en-us/library/cc645603%28v=sql.105%29.aspx) - - [Database Engine Error Severities](https://msdn.microsoft.com/en-us/library/ms164086.aspx) - - [Integration Services Error and Message Reference](https://msdn.microsoft.com/en-us/library/ms345164.aspx) - - [View and Read SQL Server Setup Log Files](https://msdn.microsoft.com/en-us/library/ms143702.aspx) - - [Troubleshoot the SQL Server Utility](https://msdn.microsoft.com/en-us/library/ee210592.aspx) + - [Database Engine Error Severities](https://docs.microsoft.com/en-us/sql/relational-databases/errors-events/database-engine-error-severities) + - [Integration Services Error and Message Reference](https://docs.microsoft.com/en-us/sql/integration-services/integration-services-error-and-message-reference) + - [View and Read SQL Server Setup Log Files](https://docs.microsoft.com/en-us/sql/database-engine/install-windows/view-and-read-sql-server-setup-log-files) + - [Troubleshoot the SQL Server Utility](https://docs.microsoft.com/en-us/sql/database-engine/troubleshoot-the-sql-server-utility) + - [Common Issues: Licensing Errors](http://blogs.sqlsentry.com/georgeboakye/common-issues-licensing-errors/) + - [SQL Server 2016 Distributed Replay Errors](https://www.sqlskills.com/blogs/jonathan/sql-server-2016-distributed-replay-errors/) + - [The Instance ID MSSQLSERVER Is Already In Use](http://www.sqlservercentral.com/articles/MSSQLSERVER/161398/) + - [SQL Server: Detach/Attach Gotchas!](https://sqljana.wordpress.com/2018/04/08/sql-server-detach-attach-gotchas/) -## SQL Server Common Errors +## SQL Server All Errors List -| Error Code | Description | Article | -|------------|---------------------------------------------------------------------|----------------------------------------| -| Msg 3153 | The backup set holds a backup of a database other than the existing | [Database Restore Fails with Msg 3154] | -| Msg 3013 | RESTORE DATABASE is terminating abnormally | | +```sql +SELECT message_id, severity, text + FROM sys.messages + WHERE language_id = 1033; -- assuming US English +``` -[Database Restore Fails with Msg 3154]://www.patrickkeisler.com/2016/05/database-restore-fails-with-msg-3154.html +## Levels of Severity + +| Severity level | Description | +|----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| +| 0-9 | Informational messages that return status information or report errors that are not severe. The Database Engine does not raise system errors with severities of 0 through 9. | +| 10 | Informational messages that return status information or report errors that are not severe. For compatibility reasons, the Database Engine converts severity 10 to severity 0 before returning the error information to the calling application. | +| 11-16 | Indicate errors that can be corrected by the user. | +| 11 | Indicates that the given object or entity does not exist. | +| 12 | A special severity for queries that do not use locking because of special query hints. In some cases, read operations performed by these statements could result in inconsistent data, since locks are not taken to guarantee consistency. | +| 13 | Indicates transaction deadlock errors. | +| 14 | Indicates security-related errors, such as permission denied. | +| 15 | Indicates syntax errors in the Transact-SQL command. | +| 16 | Indicates general errors that can be corrected by the user. | +| 17-19 | Indicate software errors that cannot be corrected by the user. Inform your system administrator of the problem. | +| 17 | Indicates that the statement caused SQL Server to run out of resources (such as memory, locks, or disk space for the database) or to exceed some limit set by the system administrator. | +| 18 | Indicates a problem in the Database Engine software, but the statement completes execution, and the connection to the instance of the Database Engine is maintained. The system administrator should be informed every time a message with a severity level of 18 occurs. | +| 19 | Indicates that a nonconfigurable Database Engine limit has been exceeded and the current batch process has been terminated. Error messages with a severity level of 19 or higher stop the execution of the current batch. Severity level 19 errors are rare and must be corrected by the system administrator or your primary support provider. Contact your system administrator when a message with a severity level 19 is raised. Error messages with a severity level from 19 through 25 are written to the error log. | +| 20-24 | Indicate system problems and are fatal errors, which means that the Database Engine task that is executing a statement or batch is no longer running. The task records information about what occurred and then terminates. In most cases, the application connection to the instance of the Database Engine may also terminate. If this happens, depending on the problem, the application might not be able to reconnect.
Error messages in this range can affect all of the processes accessing data in the same database and may indicate that a database or object is damaged. Error messages with a severity level from 19 through 24 are written to the error log. | +| 20 | Indicates that a statement has encountered a problem. Because the problem has affected only the current task, it is unlikely that the database itself has been damaged. | +| 21 | Indicates that a problem has been encountered that affects all tasks in the current database, but it is unlikely that the database itself has been damaged. | +| 22 | Indicates that the table or index specified in the message has been damaged by a software or hardware problem.
Severity level 22 errors occur rarely. If one occurs, run DBCC CHECKDB to determine whether other objects in the database are also damaged. The problem might be in the buffer cache only and not on the disk itself. If so, restarting the instance of the Database Engine corrects the problem. To continue working, you must reconnect to the instance of the Database Engine; otherwise, use DBCC to repair the problem. In some cases, you may have to restore the database.
If restarting the instance of the Database Engine does not correct the problem, then the problem is on the disk. Sometimes destroying the object specified in the error message can solve the problem. For example, if the message reports that the instance of the Database Engine has found a row with a length of 0 in a nonclustered index, delete the index and rebuild it. | +| 23 | Indicates that the integrity of the entire database is in question because of a hardware or software problem.
Severity level 23 errors occur rarely. If one occurs, run DBCC CHECKDB to determine the extent of the damage. The problem might be in the cache only and not on the disk itself. If so, restarting the instance of the Database Engine corrects the problem. To continue working, you must reconnect to the instance of the Database Engine; otherwise, use DBCC to repair the problem. In some cases, you may have to restore the database. | +| 24 | Indicates a media failure. The system administrator may have to restore the database. You may also have to call your hardware vendor. | + + +## SQL Server Errors + +| message_id | Description | Article | +|-----------:|----------------------------------------------------------------------------------------------------------|--------------------------------------| +| ? | You may see “out of user memory quota” message in errorlog when you use In-Memory OLTP feature … | [Out of user memory quota][7] | +| ? | Logon Failure: The User has not Been Granted. The operating system returned the error ????? while … | [Compressed backup errors][8] | +| - | The MSSQLSERVER service was unable to log on as SQLAuthority\SQLFarmService with the currently c … | [The User has not Been Granted][9] | +| 0 | A server error occurred on current command. The results, if any, should be discarded. | [Who owns your availability groups?] | +| 102 | Incorrect syntax near '%.*ls'. | [102_link1] | +| 145 | ORDER BY items must appear in the select list if SELECT DISTINCT is specified. | [145_link1][27] | +| 156 | Incorrect syntax near the keyword 'ORDER'. | [156_link1][23] | +| 207 | Invalid column name '%.*ls'. | [207_link1] | +| 213 | Column name or number of supplied values does not match table definition. | [213_link1][3] | +| 229 | The %ls permission was denied on the object '%.*ls', database '%.*ls', schema '%.*ls'. | [229_link1][12] | +| 264 | The column name '%.*ls' is specified more than once in the SET clause or column list of an INSERT … | [264_link1][25] | +| 297 | The user does not have permission to perform this action. | [297_link1][12] | +| 352 | The table-valued parameter "%.*ls" must be declared with the READONLY option. | [352_link1][22] | +| 535 | The datediff function resulted in an overflow. The number of dateparts separating two date/time | [535_link1] | +| 596 | Cannot continue execution because the session is in the kill state. | [596_link1] | +| 650 | You can only specify the READPAST lock in the READ COMMITTED or REPEATABLE READ isolation levels. | [650_link1] | +| 657 | Could not disable support for increased partitions in database … | [657_link1] | +| 666 | The maximum system-generated unique value for a duplicate group was exceeded for index with … | [666_link1] | +| 701 | There is insufficient system memory in resource pool '%ls' to run this query. … | [701_link1],[701_link2][11] | +| 824 | SQL Server detected a logical consistency-based I/O error … | [824_link1],[824_link2],[KB2152734] | +| 825 | The operating system returned error %ls to SQL Server. It failed creating event for a %S_MSG at … | [825_link1] | +| 913 | Could Not Find Database %d. Database May Not be Activated Yet or May be in Transition … | [913_link1] | +| 922 | Database '%.*ls' is being recovered. Waiting until recovery is finished. | [922_link1] | +| 1701 | Creating or altering table %ls failed because the minimum row size would be 8061, including 10 b … | [1701_link1] | +| 1807 | Could not obtain exclusive lock on database ‘model’. Retry the operation later. … | [1807_link1] | +| 1904 | The statistics on table has 65 columns in the key list … | [1904_link1] | +| 1908 | Column '%.*ls' is partitioning column of the index '%.*ls'. Partition columns for a unique index … | [1908_link1][18] | +| 3101 | Exclusive access could not be obtained because the database is in use. … | [3101_link1] | +| 3154 | The backup set holds a backup of a database other than the existing … | [3154_link1] | +| 3241 | The media family on device '%ls' is incorrectly formed. SQL Server cannot process this media fam … | [3241_link1] | +| 3314 | During undoing of a logged operation in database '%.*ls', an error occurred at log record ID %S … | [3314_link1] | +| 3634 | The operating system returned the error '%ls' while attempting '%ls' on '%ls'. … | [3634_link1] | +| 3743 | The database '%.*ls' is enabled for database mirroring. Database mirroring must be removed befor … | [3743_link1] | +| 3930 | The current transaction cannot be committed and cannot support operations that write to the log … | [3930_link1] | +| 4064 | Cannot open user default database. Login failed.Login failed. … | [4064_link1] | +| 4189 | Cannot convert to text/ntext or collate to '%.*ls' because these legacy LOB types do not support UTF-8 … | [4189_link1][21] | +| 4629 | Permissions on server scoped catalog views or system stored procedures or extended stored … | [4629_link1][12] | +| 4922 | ALTER TABLE ALTER COLUMN Address failed because one or more objects access this column. … | [4922_link1] | +| 4934 | Computed column '%.*ls' in table '%.*ls' cannot be persisted because the column does user or … | [4934_link1] | +| 4947 | ALTER TABLE SWITCH statement failed. There is no identical index in source table '%.*ls' for the … | [4947_link1][18] | +| 5004 | To use ALTER DATABASE, the database must be in a writable state in which a checkpoint can be executed. | [5004_link1] | +| 5120 | Unable to open the physical file ... Operating system error 5: "5(Access is denied.)" … | [SQL SERVER - FIX Error 5120] | +| 5123 | CREATE FILE encountered operating system error "%ls"(The system cannot find the path specified.) … | [5123_link1], [5123_link2] | +| 5171 | %.*ls is not a primary database file. | [5171_link1][29] | +| 5172 | The header for file '%ls' is not a valid database file header. The %ls property is incorrect. | [5172_link1][29] | +| 6335 | XML datatype instance has too many levels of nested nodes. Maximum allowed depth is 128 levels. | [6335_link1] | +| 6401 | Cannot roll back %.*ls. No transaction or savepoint of that name was found. | [6401_link1][4] | +| 7344 | The OLE DB provider "%ls" for linked server "%ls" could not %ls table "%ls" because of column … | [7344_link1][3] | +| 7357 | Cannot process the object "%ls". The OLE DB provider "%ls" for linked server "%ls" indicates that … | [7357_link1][2], [7357_link2][2] | +| 7391 | The operation could not be performed because OLE DB provider "%ls" for linked server "%ls" ... … | [7391_link2][2] | +| 7719 | CREATE/ALTER partition function failed as only maximum of 1000 partitions can be created. … | [657_link1] | +| 8115 | Arithmetic overflow error converting %ls to data type %ls. | [8115_link1][24] | +| 8180 | Statement(s) could not be prepared. | [8180_link1][28] | +| 8127 | Column "%.*ls.%.*ls" is invalid in the ORDER BY clause because it is not contained in either an … | [8127_link1][27] | +| 8624 | Internal Query Processor Error: The query processor could not produce a query plan. | [8624_link1] | +| 8651 |Could not perform the operation because the requested memory grant was not available in resource … | [8651_link1] | +| 8672 | The MERGE statement attempted to UPDATE or DELETE the same row more than once... … | [8672_link1] | +| 8909 | Table error: Object ID %d, index ID %d, partition ID %I64d, alloc unit ID %I64d (type %.*ls), pa … | [8909_link1] | +| 8921 | Check terminated. A failure was detected while collecting facts. Possibly tempdb out of space or … | [8921_link1] | +| 8948 | Database error: Page %S_PGID is marked with the wrong type in PFS page %S_PGID. PFS status 0x%x … | [8948_link1][20] | +| 9001 | The log for database '%.*ls' is not available. Check the operating system error log for related … | [9001_link1][16] | +| 9002 | The transaction log for database '%ls' is full due to '%ls'. … | [9002_link1][17],[9002_link2][19] | +| 13570 | The use of replication is not supported with system-versioned temporal table '%s' … | [13570_link1] | +| 15002 | The procedure 'sys.sp_dbcmptlevel' cannot be executed within a transaction. … | [15002_link1] | +| 15136 | The database principal is set as the execution context of one or more procedures, functions, … | [15136_link1] | +| 15190 | There are still remote logins or linked logins for the server '%s'. | [15190_link1] | +| 15199 | The current security context cannot be reverted. Please switch to the original database where … | [15199_link1][1] | +| 15406 | Cannot execute as the server principal because the principal "%.*ls" does not exist, this type of … | [15406_link1][1] | +| 17182 | TDSSNIClient initialization failed with error 0x%lx, status code 0x%lx. Reason: %S_MSG %.*ls | [17182_link1][15] | +| 17190 | Initializing the FallBack certificate failed with error code: %d, state: %d, error number: %d. … | [17190_link1] | +| 17300 | SQL Server was unable to run a new system task, either because there is insufficient memory or the … | [17300_link1] | +| 18272 | During restore restart, an I/O error occurred on checkpoint file '%s' (operating system error %s … | [18272_link1] | +| 18357 | Reason: An attempt to login using SQL authentication failed. Server is configured for Integrated … | [18357_link1][5] | +| 18452 | Login failed. The login is from an untrusted domain and cannot be used with Windows authenticati … | [18452_link1] | +| 18456 | Login failed for user '%.*ls'.%.*ls%.*ls | [18456_link1] | +| 25713 | The value specified for %S_MSG, "%.*ls", %S_MSG, "%.*ls", is invalid. | [25713_link1],[25713_link2] | +| 26023 | Server TCP provider failed to listen on [ %s <%s> %d]. Tcp port is already in use. | [26023_link1][13] | +| 33111 | Cannot find server %S_MSG with thumbprint '%.*ls'. | [33111_link1] | +| 33206 | SQL Server Audit failed to create the audit file '%s'. Make sure that the disk is not full and … | [33206_link1][10] | +| 35250 | The connection to the primary replica is not active. The command cannot be processed. | [35250_link1] | +| 39004 | A '%s' script error occurred during execution of 'sp_execute_external_script' with HRESULT 0x%x. | [39004_link1][14] | + +[1]:https://sqlstudies.com/2018/05/16/the-trials-and-tribulations-of-reverting-from-impersonation/ +[2]:https://sqlpowershell.wordpress.com/2016/11/09/sql-server-discuss-executesql-at-linkedserver/ +[3]:https://sqlstudies.com/2018/06/14/the-identity-column-the-insert-and-the-linked-server/ +[4]:http://www.sqlservercentral.com/blogs/sql-server-overview/2018/05/07/know-about-sql-server-error-6401/ +[5]:https://sqlstudies.com/2018/06/18/misleading-errors-server-is-configured-for-windows-authentication-only-but-its-not/ +[6]:https://sqlstudies.com/2018/05/10/each-session-should-be-able-to-have-its-own-temp-table-but-there-can-be-problems/ +[7]:https://blogs.msdn.microsoft.com/psssql/2017/06/07/you-may-see-out-of-user-memory-quota-message-in-errorlog-when-you-use-in-memory-oltp-feature/ +[8]:https://sqlstudies.com/2017/03/16/compressed-backup-errors-and-tf-3042/ +[9]:https://blog.sqlauthority.com/2017/04/14/sql-server-logon-failure-user-not-granted-requested-logon-type-computer/ +[10]:http://nebraskasql.blogspot.com/2018/03/error-33206-sql-server-audit-failed-to.html +[11]:http://nebraskasql.blogspot.com/2014/03/error-701-insufficient-system-memory.html +[12]:http://www.nielsberglund.com/2018/06/24/sp-execute-external-script-and-permissions/ +[13]:https://blogs.msdn.microsoft.com/psssql/2018/07/26/july-10-2018-windows-updates-cause-sql-startup-issues-due-to-tcp-port-is-already-in-use-errors/ +[14]:https://36chambers.wordpress.com/2017/04/27/error-0x80004005-in-sql-server-r-services/ +[15]:https://blogs.msdn.microsoft.com/sql_pfe_blog/2016/10/05/tcp-port-is-already-in-use/ +[16]:http://nedotter.com/archive/2018/07/dangerous-moves-setting-max-size-for-in-memory-oltp-containers/ +[17]:https://docs.microsoft.com/en-us/sql/relational-databases/logs/troubleshoot-a-full-transaction-log-sql-server-error-9002 +[18]:https://dbafromthecold.com/2018/02/21/indexing-and-partitioning/ +[19]:http://nebraskasql.blogspot.com/2018/08/the-mystery-of-exploding-t-log.html +[20]:https://www.sqlskills.com/blogs/paul/pfs-corruption-after-upgrading-from-sql-server-2014/ +[21]:https://sqlquantumleap.com/2018/09/28/native-utf-8-support-in-sql-server-2019-savior-false-prophet-or-both/ +[22]:https://sqlstudies.com/2018/09/13/using-table-valued-parameters-with-sp_executesql/ +[23]:http://sqlstudies.com/2018/09/19/you-cant-delete-top-x-with-an-order-by/ +[24]:https://www.brentozar.com/archive/2018/10/sum-avg-and-arithmetic-overflow/ +[25]:https://www.sqltheater.com/blog/using-the-same-column-twice-in-an-update-statement/ +[26]:http://jasonbrimhall.info/2018/12/14/synonyms-in-sql-server-good-and-bad/ +[27]:https://www.brentozar.com/archive/2018/08/a-common-query-error/ +[28]:https://blog.sqlauthority.com/2019/01/14/sql-server-fix-msg-8180-statements-could-not-be-prepared-deferred-prepare-could-not-be-completed/ +[29]:https://blog.sqlauthority.com/2018/08/29/sql-server-unable-to-attach-database-files-the-pageaudit-property-is-incorrect-ransomware-attack/ + +[Who owns your availability groups?]:http://www.cjsommer.com/2016-10-20-who-owns-your-availability-groups/ +[102_link1]:http://jasonbrimhall.info/2017/11/17/incorrect-syntax-what/ +[207_link1]:http://www.sqlservercentral.com/questions/IDENT_CURRENT/165581/ +[535_link1]:http://www.sqlservercentral.com/articles/T-SQL/153921/ +[596_link1]:http://sql-sasquatch.blogspot.ru/2017/09/sqlserver-just-how-minimal-can-that.html +[650_link1]:https://sqlundercover.com/2019/02/07/alter-table-fails-on-replicated-tables-with-isolation-level-serializable-or-read-uncommitted-on-sql2012-and-earlier/ +[657_link1]:https://blog.sqlauthority.com/2016/05/20/sql-server-disabling-15000-15k-partitions/ +[666_link1]:https://blogs.msdn.microsoft.com/psssql/2018/02/16/uniqueifier-considerations-and-error-666/ +[701_link1]:https://blogs.msdn.microsoft.com/psssql/2017/02/22/be-aware-of-701-error-if-you-use-memory-optimized-table-variable-in-a-loop/ +[824_link1]:http://www.sqlservercentral.com/blogs/sql-server-citation-sql-blog-by-hemantgiri-s-goswami-sql-mvp/2016/08/23/resolve-microsoft-sql-server-error-code-824/ +[824_link2]:https://stevestedman.com/2018/08/checkdb-error-msg-824-level-24/ +[825_link1]:https://www.sqlskills.com/blogs/paul/a-little-known-sign-of-impending-doom-error-825/ +[913_link1]:https://blog.sqlauthority.com/2017/04/10/sql-server-fix-error-913-severity-16-not-find-database-id-3-database-may-not-activated-yet-may-transition-sql-service/ +[922_link1]:https://blog.sqlauthority.com/2018/08/27/sql-server-how-to-drop-or-delete-suspect-database/ +[KB2152734]:https://support.microsoft.com/help/2152734 +[1701_link1]:http://www.sqlservercentral.com/questions/163450/ +[1807_link1]:http://www.sqlservercentral.com/blogs/martin_catherall/2017/01/22/create-database-ive-not-seen-that-before/ +[1904_link1]:http://blog.sqlauthority.com/2016/10/27/sql-server-fix-error-msg-1904-statistics-table-65-columns-key-list/ +[KB290787]:https://support.microsoft.com/help/290787 +[2709_link1]:https://www.brentozar.com/archive/2018/04/an-odd-case-of-blocking/ +[3041_link1]:https://www.sqlservercentral.com/Forums/Topic1179720-1550-1.aspx +[3101_link1]:https://sqlstudies.com/2017/11/27/closing-all-of-the-connections-to-a-database/ +[3154_link1]:http://www.patrickkeisler.com/2016/05/database-restore-fails-with-msg-3154.html +[3241_link1]:https://blogs.msdn.microsoft.com/psssql/2017/04/12/unable-to-restore-a-backup-msg-3241/ +[3314_link1]:https://www.sqlskills.com/blogs/paul/20122014-bug-that-can-cause-database-or-server-to-go-offline/ +[3634_link1]:https://sqlundercover.com/2017/08/29/restores-using-invalid-backup-default-locations/ +[3743_link1]:https://blog.sqlauthority.com/2017/12/05/sql-server-msg-3743-database-enabled-database-mirroring-database-mirroring-must-removed-drop-database/ +[3930_link1]:http://michaeljswart.com/2017/01/case-study-troubleshooting-doomed-transactions/ +[4064_link1]:https://blog.sqlauthority.com/2008/11/04/sql-server-fix-error-4064-cannot-open-user-default-database-login-failed-login-failed-for-user/ +[4922_link1]:https://www.mssqltips.com/sqlservertip/4749/sql-server-2016-online-alter-column-operation/ +[4934_link1]:https://www.brentozar.com/archive/2018/04/an-odd-case-of-blocking/ +[SQL SERVER - FIX Error 5120]:http://blog.sqlauthority.com/2016/10/26/sql-server-fix-error-5120-database-read-mode-attaching-files/ +[5004_link1]:https://www.scarydba.com/2019/02/11/query-store-and-a-read_only-database/ +[5123_link1]:https://blogs.msdn.microsoft.com/sql_pfe_blog/2016/11/10/tempdb-misconfiguration-when-sql-server-fails-to-create-a-secondary-data-file/ +[5123_link2]:https://blog.sqlauthority.com/2017/09/21/sql-server-fix-msg-5123-level-16-create-file-encountered-operating-system-error-5/ +[6335_link1]:https://www.brentozar.com/archive/2017/06/biggest-query-plans-dont-show-dmvs/ +[8624_link1]:http://www.sqlservercentral.com/articles/Indexing/149879/ +[8651_link1]:https://blobeater.blog/2017/05/18/setting-sql-server-max-memory-dangerously-low/ +[8672_link1]:https://blog.sqlauthority.com/2017/03/13/sql-server-fix-error-msg-8672-merge-statement-attempted-update-delete-row/ +[8909_link1]:https://www.sqlskills.com/blogs/paul/disaster-recovery-101-object-id-0-index-id-1-partition-id-0/ +[8921_link1]:https://www.sqlskills.com/blogs/paul/disaster-recovery-101-fixing-a-broken-system-table-page/ +[13570_link1]:https://www.mssqltips.com/sqlservertip/5281/sql-server-replication-for-temporal-tables/ +[15002_link1]:https://blogs.msdn.microsoft.com/luti/2017/05/17/sql-server-offline-after-applying-service-pack/ +[15136_link1]:https://blogs.msdn.microsoft.com/psssql/2016/11/15/unable-to-drop-a-user-in-a-database/ +[15190_link1]:https://blog.sqlauthority.com/2018/12/15/sql-server-fix-msg-15190-there-are-still-remote-logins-or-linked-logins-for-the-server/ +[17190_link1]:https://www.sqlskills.com/blogs/jonathan/using-group-managed-service-accounts-for-sql-server/ +[17300_link1]:https://blog.sqlauthority.com/2018/08/16/sql-server-error-17300-the-error-is-printed-in-terse-mode-because-there-was-error-during-formatting/ +[18272_link1]:https://sqlundercover.com/2017/08/29/restores-using-invalid-backup-default-locations/ +[18452_link1]:http://jasonbrimhall.info/2016/11/08/login-from-an-untrusted-domain-back-to-basics/ +[18456_link1]:https://sqlstudies.com/2017/01/12/why-wont-my-sql-logins-work/ +[25713_link1]:https://sqlquantumleap.com/2018/01/22/server-audit-mystery-filtering-class_type-gets-error-msg-25713/ +[25713_link2]:https://sqlquantumleap.com/2018/01/30/server-audit-mystery-filtering-action_id-gets-error-msg-25713/ +[33111_link1]:https://sqlundercover.com/2018/04/04/encrypting-sql-server-database-backups/ +[35250_link1]:https://blog.sqlauthority.com/2017/05/18/sql-server-fix-msg-35250-level-16-state-7-connection-primary-replica-not-active-command-cannot-processed/ diff --git a/Extended_Events/APC_Reverted_plan_corrections.sql b/Extended_Events/APC_Reverted_plan_corrections.sql new file mode 100644 index 00000000..d3b09c24 --- /dev/null +++ b/Extended_Events/APC_Reverted_plan_corrections.sql @@ -0,0 +1,23 @@ +/* +Original link: https://blogs.msdn.microsoft.com/sqlserverstorageengine/2017/07/18/monitoring-automatic-tuning-actions-using-xevents/ +Author: Jovan Popovic +*/ + +IF SERVERPROPERTY('ProductMajorVersion') < 14 +RAISERROR ('Your version of SQL Server is not supported! This extended event works only for version >= 2017 RC1', 20, 1) WITH LOG; + +IF EXISTS (SELECT 1 FROM sys.server_event_sessions WHERE name = 'APC_Reverted_plan_corrections') + DROP EVENT SESSION [APC_Reverted_plan_corrections] ON SERVER; +GO + +CREATE EVENT SESSION [APC_Reverted_plan_corrections] ON SERVER +ADD EVENT qds.automatic_tuning_plan_regression_verification_check_completed( + WHERE ((([is_regression_detected]=(1)) + AND ([is_regression_corrected]=(1))) + AND ([option_id]=(1)))) +ADD TARGET package0.event_file(SET filename=N'reverted_plan_corrections') +WITH (STARTUP_STATE=ON); +GO + +ALTER EVENT SESSION [APC_Reverted_plan_corrections] ON SERVER STATE = start; +GO diff --git a/Extended_Events/APC_plans_that_are_not_corrected.sql b/Extended_Events/APC_plans_that_are_not_corrected.sql new file mode 100644 index 00000000..32a6d6ca --- /dev/null +++ b/Extended_Events/APC_plans_that_are_not_corrected.sql @@ -0,0 +1,23 @@ +/* +Original link: https://blogs.msdn.microsoft.com/sqlserverstorageengine/2017/07/18/monitoring-automatic-tuning-actions-using-xevents/ +Author: Jovan Popovic +*/ + +IF SERVERPROPERTY('ProductMajorVersion') < 14 +RAISERROR ('Your version of SQL Server is not supported! This extended event works only for version >= 2017 RC1', 20, 1) WITH LOG; + +IF EXISTS (SELECT 1 FROM sys.server_event_sessions WHERE name = 'APC_plans_that_are_not_corrected') + DROP EVENT SESSION [APC_plans_that_are_not_corrected] ON SERVER; +GO + +CREATE EVENT SESSION [APC_plans_that_are_not_corrected] ON SERVER +ADD EVENT qds.automatic_tuning_plan_regression_detection_check_completed( +WHERE ((([is_regression_detected]=(1)) + AND ([is_regression_corrected]=(0))) + AND ([option_id]=(1)))) +ADD TARGET package0.event_file(SET filename=N'plans_that_are_not_corrected') +WITH (STARTUP_STATE=ON); +GO + +ALTER EVENT SESSION [APC_plans_that_are_not_corrected] ON SERVER STATE = start; +GO \ No newline at end of file diff --git a/Extended_Events/BackupRestoreTrace.sql b/Extended_Events/BackupRestoreTrace.sql new file mode 100644 index 00000000..edb3b8ab --- /dev/null +++ b/Extended_Events/BackupRestoreTrace.sql @@ -0,0 +1,34 @@ +/* +Original link: https://blogs.msdn.microsoft.com/sql_server_team/sql-server-mysteries-the-case-of-the-not-100-restore/ +Author: Bob Ward +*/ +IF EXISTS ( + SELECT * FROM sys.server_event_sessions + WHERE [name] = N'BackupRestoreTrace') + DROP EVENT SESSION BackupRestoreTrace ON SERVER +GO + + +CREATE EVENT SESSION BackupRestoreTrace ON SERVER +ADD EVENT sqlos.async_io_completed( + ACTION(package0.event_sequence,sqlos.task_address,sqlserver.session_id)), +ADD EVENT sqlos.async_io_requested( + ACTION(package0.event_sequence,sqlos.task_address,sqlserver.session_id)), +ADD EVENT sqlos.task_completed( + ACTION(package0.event_sequence,sqlserver.session_id)), +ADD EVENT sqlos.task_started( + ACTION(package0.event_sequence,sqlserver.session_id)), +ADD EVENT sqlserver.backup_restore_progress_trace( + ACTION(package0.event_sequence,sqlos.task_address,sqlserver.session_id)), +ADD EVENT sqlserver.file_write_completed(SET collect_path=(1) + ACTION(package0.event_sequence,sqlos.task_address,sqlserver.session_id)) +ADD TARGET package0.event_file(SET filename=N'BackupRestoreTrace') +WITH ( + MAX_MEMORY=4096 KB, + EVENT_RETENTION_MODE=ALLOW_SINGLE_EVENT_LOSS, + MAX_DISPATCH_LATENCY=5 SECONDS, + MAX_EVENT_SIZE=0 KB, + MEMORY_PARTITION_MODE=NONE, + TRACK_CAUSALITY=OFF, + STARTUP_STATE=OFF +); diff --git a/Extended_Events/ConvertingSQLTracetoExtendedEvents.sql b/Extended_Events/ConvertingSQLTracetoExtendedEvents.sql new file mode 100644 index 00000000..562e0469 --- /dev/null +++ b/Extended_Events/ConvertingSQLTracetoExtendedEvents.sql @@ -0,0 +1,325 @@ +/* +Author: Jonathan Kehayias +Original link: https://www.sqlskills.com/blogs/jonathan/converting-sql-trace-to-extended-events-in-sql-server-2012 +*/ + +IF EXISTS (SELECT 1 FROM sys.server_event_sessions WHERE name = 'XE_Default_Trace') + DROP EVENT SESSION [XE_Default_Trace] ON SERVER; +GO +CREATE EVENT SESSION [XE_Default_Trace] +ON SERVER +/* Audit Login Failed is not implemented in Extended Events it may be a Server Audit Event */ +/* Audit Database Scope GDR Event is not implemented in Extended Events it may be a Server Audit Event */ +/* Audit Schema Object GDR Event is not implemented in Extended Events it may be a Server Audit Event */ +/* Audit Addlogin Event is not implemented in Extended Events it may be a Server Audit Event */ +/* Audit Login GDR Event is not implemented in Extended Events it may be a Server Audit Event */ +/* Audit Login Change Property Event is not implemented in Extended Events it may be a Server Audit Event */ +/* Audit Add Login to Server Role Event is not implemented in Extended Events it may be a Server Audit Event */ +/* Audit Add DB User Event is not implemented in Extended Events it may be a Server Audit Event */ +/* Audit Add Member to DB Role Event is not implemented in Extended Events it may be a Server Audit Event */ +/* Audit Add Role Event is not implemented in Extended Events it may be a Server Audit Event */ +/* Audit Backup/Restore Event is not implemented in Extended Events it may be a Server Audit Event */ +/* Audit DBCC Event is not implemented in Extended Events it may be a Server Audit Event */ +/* Audit Change Audit Event is not implemented in Extended Events it may be a Server Audit Event */ +/* Audit Change Database Owner is not implemented in Extended Events it may be a Server Audit Event */ +/* Audit Schema Object Take Ownership Event is not implemented in Extended Events it may be a Server Audit Event */ +/* Audit Server Alter Trace Event is not implemented in Extended Events it may be a Server Audit Event */ +ADD EVENT sqlserver.database_file_size_change( + ACTION + ( + sqlserver.client_app_name — ApplicationName from SQLTrace + , sqlserver.client_hostname — HostName from SQLTrace + , sqlserver.client_pid — ClientProcessID from SQLTrace + , package0.event_sequence — EventSequence from SQLTrace + , sqlserver.is_system — IsSystem from SQLTrace + , sqlserver.nt_username — NTDomainName from SQLTrace + , sqlserver.server_instance_name — ServerName from SQLTrace + , sqlserver.server_principal_name — LoginName from SQLTrace + , sqlserver.server_principal_sid — LoginSid from SQLTrace + , sqlserver.session_id — SPID from SQLTrace + , sqlserver.session_server_principal_name — SessionLoginName from SQLTrace + ) +), +/* Log File Auto Grow is implemented as the sqlserver.database_file_size_change event in Extended Events */ +/* Data File Auto Shrink is implemented as the sqlserver.database_file_size_change event in Extended Events */ +/* Log File Auto Shrink is implemented as the sqlserver.database_file_size_change event in Extended Events */ +ADD EVENT sqlserver.database_mirroring_state_change( + ACTION + ( + package0.event_sequence — EventSequence from SQLTrace + , sqlserver.is_system — IsSystem from SQLTrace + , sqlserver.request_id — RequestID from SQLTrace + , sqlserver.server_instance_name — ServerName from SQLTrace + , sqlserver.server_principal_sid — LoginSid from SQLTrace + , sqlserver.session_id — SPID from SQLTrace + , sqlserver.session_server_principal_name — SessionLoginName from SQLTrace + , sqlserver.transaction_id — TransactionID from SQLTrace + ) +), +ADD EVENT sqlserver.errorlog_written( + ACTION + ( + sqlserver.client_app_name — ApplicationName from SQLTrace + , sqlserver.client_hostname — HostName from SQLTrace + , sqlserver.client_pid — ClientProcessID from SQLTrace + , sqlserver.database_id — DatabaseID from SQLTrace + , sqlserver.database_name — DatabaseName from SQLTrace + , package0.event_sequence — EventSequence from SQLTrace + , sqlserver.is_system — IsSystem from SQLTrace + , sqlserver.nt_username — NTUserName from SQLTrace + , sqlserver.nt_username — NTDomainName from SQLTrace + , sqlserver.request_id — RequestID from SQLTrace + , sqlserver.server_instance_name — ServerName from SQLTrace + , sqlserver.server_principal_name — LoginName from SQLTrace + , sqlserver.server_principal_sid — LoginSid from SQLTrace + , sqlserver.session_id — SPID from SQLTrace + , sqlserver.session_server_principal_name — SessionLoginName from SQLTrace + , sqlserver.transaction_id — TransactionID from SQLTrace + — Severity not implemented in XE for this event + — State not implemented in XE for this event + — Error not implemented in XE for this event + ) +), +ADD EVENT sqlserver.full_text_crawl_started( + ACTION + ( + package0.event_sequence — EventSequence from SQLTrace + , sqlserver.is_system — IsSystem from SQLTrace + , sqlserver.session_id — SPID from SQLTrace + , sqlserver.session_server_principal_name — SessionLoginName from SQLTrace + , sqlserver.transaction_id — TransactionID from SQLTrace + — ServerName not implemented in XE for this event + ) +), +ADD EVENT sqlserver.full_text_crawl_stopped( + ACTION + ( + package0.event_sequence — EventSequence from SQLTrace + , sqlserver.is_system — IsSystem from SQLTrace + , sqlserver.session_id — SPID from SQLTrace + , sqlserver.session_server_principal_name — SessionLoginName from SQLTrace + , sqlserver.transaction_id — TransactionID from SQLTrace + — ServerName not implemented in XE for this event + ) +), +ADD EVENT sqlserver.hash_warning( + ACTION + ( + sqlserver.client_app_name — ApplicationName from SQLTrace + , sqlserver.client_hostname — HostName from SQLTrace + , sqlserver.client_pid — ClientProcessID from SQLTrace + , sqlserver.database_id — DatabaseID from SQLTrace + , sqlserver.database_name — DatabaseName from SQLTrace + , package0.event_sequence — EventSequence from SQLTrace + , sqlserver.is_system — IsSystem from SQLTrace + , sqlserver.nt_username — NTUserName from SQLTrace + , sqlserver.nt_username — NTDomainName from SQLTrace + , sqlserver.request_id — RequestID from SQLTrace + , sqlserver.server_instance_name — ServerName from SQLTrace + , sqlserver.server_principal_name — LoginName from SQLTrace + , sqlserver.server_principal_sid — LoginSid from SQLTrace + , sqlserver.session_id — SPID from SQLTrace + , sqlserver.session_resource_group_id — GroupID from SQLTrace + , sqlserver.session_server_principal_name — SessionLoginName from SQLTrace + , sqlserver.transaction_id — TransactionID from SQLTrace + , sqlserver.transaction_sequence — XactSequence from SQLTrace + ) +), +ADD EVENT sqlserver.missing_column_statistics( + ACTION + ( + sqlserver.client_app_name — ApplicationName from SQLTrace + , sqlserver.client_hostname — HostName from SQLTrace + , sqlserver.client_pid — ClientProcessID from SQLTrace + , sqlserver.database_id — DatabaseID from SQLTrace + , sqlserver.database_name — DatabaseName from SQLTrace + , package0.event_sequence — EventSequence from SQLTrace + , sqlserver.is_system — IsSystem from SQLTrace + , sqlserver.nt_username — NTUserName from SQLTrace + , sqlserver.nt_username — NTDomainName from SQLTrace + , sqlserver.request_id — RequestID from SQLTrace + , sqlserver.server_instance_name — ServerName from SQLTrace + , sqlserver.server_principal_name — LoginName from SQLTrace + , sqlserver.server_principal_sid — LoginSid from SQLTrace + , sqlserver.session_id — SPID from SQLTrace + , sqlserver.session_resource_group_id — GroupID from SQLTrace + , sqlserver.session_server_principal_name — SessionLoginName from SQLTrace + , sqlserver.transaction_id — TransactionID from SQLTrace + , sqlserver.transaction_sequence — XactSequence from SQLTrace + ) +), +ADD EVENT sqlserver.missing_join_predicate( + ACTION + ( + sqlserver.client_app_name — ApplicationName from SQLTrace + , sqlserver.client_hostname — HostName from SQLTrace + , sqlserver.client_pid — ClientProcessID from SQLTrace + , sqlserver.database_id — DatabaseID from SQLTrace + , sqlserver.database_name — DatabaseName from SQLTrace + , package0.event_sequence — EventSequence from SQLTrace + , sqlserver.is_system — IsSystem from SQLTrace + , sqlserver.nt_username — NTUserName from SQLTrace + , sqlserver.nt_username — NTDomainName from SQLTrace + , sqlserver.request_id — RequestID from SQLTrace + , sqlserver.server_instance_name — ServerName from SQLTrace + , sqlserver.server_principal_name — LoginName from SQLTrace + , sqlserver.server_principal_sid — LoginSid from SQLTrace + , sqlserver.session_id — SPID from SQLTrace + , sqlserver.session_resource_group_id — GroupID from SQLTrace + , sqlserver.session_server_principal_name — SessionLoginName from SQLTrace + , sqlserver.transaction_id — TransactionID from SQLTrace + , sqlserver.transaction_sequence — XactSequence from SQLTrace + ) +), +ADD EVENT sqlserver.object_altered( + ACTION + ( + package0.attach_activity_id — IntegerData from SQLTrace + , sqlserver.client_app_name — ApplicationName from SQLTrace + , sqlserver.client_hostname — HostName from SQLTrace + , sqlserver.client_pid — ClientProcessID from SQLTrace + , package0.event_sequence — EventSequence from SQLTrace + , sqlserver.is_system — IsSystem from SQLTrace + , sqlserver.nt_username — NTUserName from SQLTrace + , sqlserver.nt_username — NTDomainName from SQLTrace + , sqlserver.request_id — RequestID from SQLTrace + , sqlserver.server_instance_name — ServerName from SQLTrace + , sqlserver.server_principal_name — LoginName from SQLTrace + , sqlserver.server_principal_sid — LoginSid from SQLTrace + , sqlserver.session_id — SPID from SQLTrace + , sqlserver.session_resource_group_id — GroupID from SQLTrace + , sqlserver.session_server_principal_name — SessionLoginName from SQLTrace + , sqlserver.transaction_id — TransactionID from SQLTrace + , sqlserver.transaction_sequence — XactSequence from SQLTrace + — BigintData1 not implemented in XE for this event + ) +), +ADD EVENT sqlserver.object_created( + ACTION + ( + package0.attach_activity_id — IntegerData from SQLTrace + , sqlserver.client_app_name — ApplicationName from SQLTrace + , sqlserver.client_hostname — HostName from SQLTrace + , sqlserver.client_pid — ClientProcessID from SQLTrace + , package0.event_sequence — EventSequence from SQLTrace + , sqlserver.is_system — IsSystem from SQLTrace + , sqlserver.nt_username — NTUserName from SQLTrace + , sqlserver.nt_username — NTDomainName from SQLTrace + , sqlserver.request_id — RequestID from SQLTrace + , sqlserver.server_instance_name — ServerName from SQLTrace + , sqlserver.server_principal_name — LoginName from SQLTrace + , sqlserver.server_principal_sid — LoginSid from SQLTrace + , sqlserver.session_id — SPID from SQLTrace + , sqlserver.session_resource_group_id — GroupID from SQLTrace + , sqlserver.session_server_principal_name — SessionLoginName from SQLTrace + , sqlserver.transaction_id — TransactionID from SQLTrace + , sqlserver.transaction_sequence — XactSequence from SQLTrace + — BigintData1 not implemented in XE for this event + ) +), +ADD EVENT sqlserver.object_deleted( + ACTION + ( + package0.attach_activity_id — IntegerData from SQLTrace + , sqlserver.client_app_name — ApplicationName from SQLTrace + , sqlserver.client_hostname — HostName from SQLTrace + , sqlserver.client_pid — ClientProcessID from SQLTrace + , package0.event_sequence — EventSequence from SQLTrace + , sqlserver.is_system — IsSystem from SQLTrace + , sqlserver.nt_username — NTUserName from SQLTrace + , sqlserver.nt_username — NTDomainName from SQLTrace + , sqlserver.request_id — RequestID from SQLTrace + , sqlserver.server_instance_name — ServerName from SQLTrace + , sqlserver.server_principal_name — LoginName from SQLTrace + , sqlserver.server_principal_sid — LoginSid from SQLTrace + , sqlserver.session_id — SPID from SQLTrace + , sqlserver.session_resource_group_id — GroupID from SQLTrace + , sqlserver.session_server_principal_name — SessionLoginName from SQLTrace + , sqlserver.transaction_id — TransactionID from SQLTrace + , sqlserver.transaction_sequence — XactSequence from SQLTrace + — BigintData1 not implemented in XE for this event + ) +), +ADD EVENT sqlserver.plan_guide_unsuccessful( + ACTION + ( + sqlserver.client_app_name — ApplicationName from SQLTrace + , sqlserver.client_hostname — HostName from SQLTrace + , sqlserver.client_pid — ClientProcessID from SQLTrace + , sqlserver.database_id — DatabaseID from SQLTrace + , sqlserver.database_name — DatabaseName from SQLTrace + , package0.event_sequence — EventSequence from SQLTrace + , sqlserver.is_system — IsSystem from SQLTrace + , sqlserver.nt_username — NTUserName from SQLTrace + , sqlserver.nt_username — NTDomainName from SQLTrace + , sqlserver.request_id — RequestID from SQLTrace + , sqlserver.server_instance_name — ServerName from SQLTrace + , sqlserver.server_principal_name — LoginName from SQLTrace + , sqlserver.server_principal_sid — LoginSid from SQLTrace + , sqlserver.session_id — SPID from SQLTrace + , sqlserver.session_server_principal_name — SessionLoginName from SQLTrace + , sqlserver.transaction_id — TransactionID from SQLTrace + , sqlserver.transaction_sequence — XactSequence from SQLTrace + — TextData not implemented in XE for this event + ) +), +ADD EVENT sqlserver.server_memory_change( + ACTION + ( + package0.event_sequence — EventSequence from SQLTrace + , sqlserver.is_system — IsSystem from SQLTrace + , sqlserver.request_id — RequestID from SQLTrace + , sqlserver.server_instance_name — ServerName from SQLTrace + , sqlserver.session_id — SPID from SQLTrace + , sqlserver.session_server_principal_name — SessionLoginName from SQLTrace + , sqlserver.transaction_id — TransactionID from SQLTrace + , sqlserver.transaction_sequence — XactSequence from SQLTrace + ) +), +ADD EVENT sqlserver.server_start_stop( + ACTION + ( + sqlserver.client_app_name — ApplicationName from SQLTrace + , sqlserver.client_hostname — HostName from SQLTrace + , sqlserver.client_pid — ClientProcessID from SQLTrace + , package0.event_sequence — EventSequence from SQLTrace + , sqlserver.is_system — IsSystem from SQLTrace + , sqlserver.nt_username — NTUserName from SQLTrace + , sqlserver.nt_username — NTDomainName from SQLTrace + , sqlserver.request_id — RequestID from SQLTrace + , sqlserver.server_instance_name — ServerName from SQLTrace + , sqlserver.server_principal_name — LoginName from SQLTrace + , sqlserver.server_principal_sid — LoginSid from SQLTrace + , sqlserver.session_id — SPID from SQLTrace + , sqlserver.session_server_principal_name — SessionLoginName from SQLTrace + ) +), +ADD EVENT sqlserver.sort_warning( + ACTION + ( + sqlserver.client_app_name — ApplicationName from SQLTrace + , sqlserver.client_hostname — HostName from SQLTrace + , sqlserver.client_pid — ClientProcessID from SQLTrace + , sqlserver.database_id — DatabaseID from SQLTrace + , sqlserver.database_name — DatabaseName from SQLTrace + , package0.event_sequence — EventSequence from SQLTrace + , sqlserver.is_system — IsSystem from SQLTrace + , sqlserver.nt_username — NTUserName from SQLTrace + , sqlserver.nt_username — NTDomainName from SQLTrace + , sqlserver.request_id — RequestID from SQLTrace + , sqlserver.server_instance_name — ServerName from SQLTrace + , sqlserver.server_principal_name — LoginName from SQLTrace + , sqlserver.server_principal_sid — LoginSid from SQLTrace + , sqlserver.session_id — SPID from SQLTrace + , sqlserver.session_resource_group_id — GroupID from SQLTrace + , sqlserver.session_server_principal_name — SessionLoginName from SQLTrace + , sqlserver.transaction_id — TransactionID from SQLTrace + , sqlserver.transaction_sequence — XactSequence from SQLTrace + ) +) +ADD TARGET package0.event_file +( + SET filename = 'C:\Program Files\Microsoft SQL Server\MSSQL11.MSSQLSERVER\MSSQL\Log\XE_Default_Trace.xel', + max_file_size = 20, + max_rollover_files = 5 +) diff --git a/Extended_Events/DarkQueries.sql b/Extended_Events/DarkQueries.sql new file mode 100644 index 00000000..4fafee37 --- /dev/null +++ b/Extended_Events/DarkQueries.sql @@ -0,0 +1,26 @@ +CREATE EVENT SESSION [DarkQueries] ON SERVER + ADD EVENT sqlserver.sql_statement_recompile( + ACTION(sqlserver.database_id,sqlserver.sql_text) + WHERE ([recompile_cause]=(11))) -- Option (RECOMPILE) Requested + ADD TARGET package0.event_file(SET filename=N'DarkQueries'); + +ALTER EVENT SESSION [DarkQueries] ON SERVER STATE = START; + + +SELECT DarkQueryData.eventDate, + DB_NAME(DarkQueryData.database_id) as DatabaseName, + DarkQueryData.object_type, + COALESCE(DarkQueryData.sql_text, + OBJECT_NAME(DarkQueryData.object_id, DarkQueryData.database_id)) command, + DarkQueryData.recompile_cause + FROM sys.fn_xe_file_target_read_file ( 'DarkQueries*xel', null, null, null) event_file_value + CROSS APPLY ( SELECT CAST(event_file_value.[event_data] as xml) ) event_file_value_xml ([xml]) + CROSS APPLY ( + SELECT event_file_value_xml.[xml].value('(event/@timestamp)[1]', 'datetime') as eventDate, + event_file_value_xml.[xml].value('(event/action[@name="sql_text"]/value)[1]', 'nvarchar(max)') as sql_text, + event_file_value_xml.[xml].value('(event/data[@name="object_type"]/text)[1]', 'nvarchar(100)') as object_type, + event_file_value_xml.[xml].value('(event/data[@name="object_id"]/value)[1]', 'bigint') as object_id, + event_file_value_xml.[xml].value('(event/data[@name="source_database_id"]/value)[1]', 'bigint') as database_id, + event_file_value_xml.[xml].value('(event/data[@name="recompile_cause"]/text)[1]', 'nvarchar(100)') as recompile_cause + ) as DarkQueryData + ORDER BY eventDate DESC; diff --git a/Extended_Events/Deadlocks.sql b/Extended_Events/Deadlocks.sql new file mode 100644 index 00000000..a047f584 --- /dev/null +++ b/Extended_Events/Deadlocks.sql @@ -0,0 +1,116 @@ +/* +Original link: http://blog.waynesheffield.com/wayne/archive/2017/04/weaning-yourself-off-sql-profiler/ +Author: Wayne Sheffield +*/ +IF EXISTS (SELECT 1 FROM sys.server_event_sessions WHERE name = 'Deadlocks') + DROP EVENT SESSION [Deadlocks] ON SERVER; +GO + +EXECUTE xp_create_subdir 'C:\SQL\XE_Out'; +GO + +CREATE EVENT SESSION [Deadlocks] +ON SERVER +ADD EVENT sqlserver.lock_deadlock( + SET collect_database_name=(1),collect_resource_description=(1) + ACTION + ( + sqlserver.client_app_name -- ApplicationName from SQLTrace + , sqlserver.client_pid -- ClientProcessID from SQLTrace + , sqlserver.nt_username -- NTUserName from SQLTrace + , sqlserver.server_principal_name -- LoginName from SQLTrace + , sqlserver.session_id -- SPID from SQLTrace + ) +), +ADD EVENT sqlserver.lock_deadlock_chain( + SET collect_database_name=(1),collect_resource_description=(1) + ACTION + ( + sqlserver.session_id -- SPID from SQLTrace + ) +), +ADD EVENT sqlserver.xml_deadlock_report( + ACTION + ( + sqlserver.server_principal_name -- LoginName from SQLTrace + , sqlserver.session_id -- SPID from SQLTrace + ) +) +ADD TARGET package0.event_file +( + SET filename = 'C:\SQL\XE_Out\Deadlocks.xel', + max_file_size = 250, + max_rollover_files = 5 +) +WITH (STARTUP_STATE=OFF) +; + +/* +-- 1 The next step is to create a deadlock. Open up a new query window, and run the following. Leave this query window open. +USE tempdb; +GO +IF OBJECT_ID('dbo.Test1') IS NOT NULL DROP TABLE dbo.Test1; +IF OBJECT_ID('dbo.Test2') IS NOT NULL DROP TABLE dbo.Test2; +CREATE TABLE dbo.Test1 (col1 INT); +CREATE TABLE dbo.Test2 (col2 INT); +INSERT INTO dbo.Test1 VALUES (1),(2),(3),(4),(5); +INSERT INTO dbo.Test2 VALUES (1),(2),(3),(4),(5); +GO +BEGIN TRANSACTION +UPDATE dbo.Test1 SET col1 = col1*10 WHERE col1=3; + +-- 2 Next, open up a second query window, and run the following code in that window: +USE tempdb; +BEGIN TRANSACTION; +UPDATE dbo.Test2 SET col2 = col2*20 WHERE col2 = 4; +UPDATE dbo.Test1 SET col1 = col1*20 WHERE col1 = 3; +COMMIT TRANSACTION; + +-- 3 Finally, return to the first query window and run the following code, at which point one of the statements in one of the query windows will be deadlocked: +UPDATE dbo.Test2 SET col2 = col2*10 WHERE col2 = 4; +COMMIT TRANSACTION; + +-- Msg 1205, Level 13, State 45, Line 4 +-- Transaction (Process ID 57) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction. + +-- 4 Get extended event info +WITH cte AS +( +SELECT t2.event_data.value('(event/@name)[1]','varchar(50)') AS event_name, + t2.event_data.value('(event/@timestamp)[1]', 'datetime2') AS StartTime, + t2.event_data.value('(event/data[@name="duration"]/value)[1]', 'bigint') AS duration, + t2.event_data.value('(event/data[@name="database_name"]/value)[1]', 'sysname') AS DBName, + t2.event_data.value('(event/action[@name="nt_username"]/value)[1]', 'varchar(500)') AS nt_username, + t2.event_data.value('(event/data[@name="mode"]/value)[1]', 'varchar(15)') + ' (' + + t2.event_data.value('(event/data[@name="mode"]/text)[1]', 'varchar(50)') + ')' AS mode, + t2.event_data.value('(event/data[@name="object_id"]/value)[1]', 'integer') AS object_id, + t2.event_data.value('(event/data[@name="resource_description"]/value)[1]', 'varchar(max)') AS resource_description, + t2.event_data.value('(event/data[@name="resource_owner_type"]/text)[1]', 'varchar(max)') AS resource_owner_type, + t2.event_data.value('(event/data[@name="resource_type"]/text)[1]', 'varchar(max)') + ' (' + + t2.event_data.value('(event/data[@name="resource_type"]/value)[1]', 'varchar(max)') + ')' AS resource_type, + t2.event_data.value('(event/action[@name="server_principal_name"]/value)[1]', 'varchar(max)') AS server_principal_name, + t2.event_data.value('(event/action[@name="session_id"]/value)[1]', 'varchar(max)') AS session_id, + t2.event_data.value('(event/action[@name="client_pid"]/value)[1]', 'integer') AS client_pid, + t2.event_data.value('(event/action[@name="client_app_name"]/value)[1]', 'varchar(max)') AS client_app_name, + t2.event_data +FROM sys.fn_xe_file_target_read_file('C:\SQL\XE_Out\Deadlocks*.xel', NULL, NULL, NULL) t1 +CROSS APPLY (SELECT CONVERT(XML, t1.event_data)) t2(event_data) +) +SELECT cte.event_name, + cte.StartTime, + DATEADD(MICROSECOND, duration, CONVERT(DATETIME2, [cte].StartTime)) AS EndDate, + cte.duration, + cte.DBName, + cte.nt_username, + cte.server_principal_name, + cte.mode, + cte.object_id, + cte.resource_description, + cte.resource_owner_type, + cte.resource_type, + cte.session_id, + cte.client_pid, + cte.client_app_name, + cte.event_data +FROM cte; +*/ diff --git a/Extended_Events/ImplicitConversionOnly.sql b/Extended_Events/ImplicitConversionOnly.sql new file mode 100644 index 00000000..863483e5 --- /dev/null +++ b/Extended_Events/ImplicitConversionOnly.sql @@ -0,0 +1,21 @@ +/* +Original link: https://www.scarydba.com/2018/10/15/using-extended-events-to-capture-implicit-conversions/ +Author: Grant Fritchey +*/ +-- If the Event Session exists DROP it +IF EXISTS (SELECT 1 +FROM sys.server_event_sessions +WHERE name = N'ImplicitConversionOnly') + DROP EVENT SESSION ImplicitConversionOnly ON SERVER; + +CREATE EVENT SESSION ImplicitConversionOnly +ON SERVER +ADD EVENT sqlserver.plan_affecting_convert +(ACTION (sqlserver.sql_text) +-- WHERE (sqlserver.equal_i_sql_unicode_string(sqlserver.database_name, N'AdventureWorks2017')) +) +ADD TARGET package0.event_file +(SET filename = N'ImplicitConversionOnly'); + +ALTER EVENT SESSION ImplicitConversionOnly ON SERVER STATE = START; +GO diff --git a/Extended_Events/InvestigateWaits.sql b/Extended_Events/InvestigateWaits.sql new file mode 100644 index 00000000..9dbc8380 --- /dev/null +++ b/Extended_Events/InvestigateWaits.sql @@ -0,0 +1,42 @@ +/* +Original link: http://www.sqlskills.com/blogs/paul/who-is-overriding-maxdop-1-on-the-instance/ +Author: Paul Randal +*/ +IF EXISTS ( + SELECT * FROM sys.server_event_sessions + WHERE [name] = N'InvestigateWaits') + DROP EVENT SESSION [InvestigateWaits] ON SERVER +GO + +CREATE EVENT SESSION InvestigateWaits ON SERVER +ADD EVENT sqlserver.degree_of_parallelism +( + ACTION ( + sqlserver.client_hostname, + sqlserver.nt_username, + sqlserver.sql_text) + WHERE [dop] > 0 -- parallel plans +) +ADD TARGET [package0].[ring_buffer] +WITH +( + MAX_MEMORY = 50 MB, + MAX_DISPATCH_LATENCY = 5 SECONDS) +GO + +And the code to parse the XML, and sample output from my query is: + +SELECT + [data1].[value] ('(./@timestamp)[1]', 'datetime') AS [Time], + [data1].[value] ('(./data[@name="dop"]/value)[1]', 'INT') AS [DOP], + [data1].[value] ('(./action[@name="client_hostname"]/value)[1]', 'VARCHAR(MAX)') AS [Host], + [data1].[value] ('(./action[@name="nt_username"]/value)[1]', 'VARCHAR(MAX)') AS [User], + [data1].[value] ('(./action[@name="sql_text"]/value)[1]','VARCHAR(MAX)') AS [Statement] +FROM ( + SELECT CONVERT (XML, [target_data]) AS data + FROM sys.dm_xe_session_targets [xst] + INNER JOIN sys.dm_xe_sessions [xs] + ON [xst].[event_session_address] = [xs].[address] + WHERE [xs].[name] = N'InvestigateWaits') AS t +CROSS APPLY data.nodes('//event') n (data1); +GO diff --git a/Extended_Events/LoginFailure.sql b/Extended_Events/LoginFailure.sql new file mode 100644 index 00000000..23547f05 --- /dev/null +++ b/Extended_Events/LoginFailure.sql @@ -0,0 +1,9 @@ +/* +https://blogs.msdn.microsoft.com/sql_pfe_blog/2017/05/04/login-failed-for-xxx-whos-keeps-trying-to-connect-to-my-server/ +*/ + +CREATE EVENT SESSION [LoginFailureTrace] ON SERVER +ADD EVENT sqlserver.errorlog_written( ACTION(sqlserver.client_app_name,sqlserver.client_hostname,sqlserver.client_pid)) +ADD TARGET package0.event_file(SET filename=N'LoginFailureTrace',max_file_size=(128)) +WITH (MAX_MEMORY=4096 KB,EVENT_RETENTION_MODE=ALLOW_MULTIPLE_EVENT_LOSS,MAX_DISPATCH_LATENCY=30 SECONDS,MAX_EVENT_SIZE=0 KB,MEMORY_PARTITION_MODE=NONE,TRACK_CAUSALITY=OFF,STARTUP_STATE=OFF) +GO diff --git a/Extended_Events/MonitorPageSplits.sql b/Extended_Events/MonitorPageSplits.sql new file mode 100644 index 00000000..df2ee769 --- /dev/null +++ b/Extended_Events/MonitorPageSplits.sql @@ -0,0 +1,56 @@ +/* +Original link: http://sqlblog.com/blogs/jonathan_kehayias/archive/2010/10/17/tracking-page-splits-in-sql-server-denali-ctp1.aspx +Author: Jonathan Kehayias +*/ + +IF (SELECT 1 FROM sys.server_event_sessions WHERE name = 'MonitorPageSplits') IS NOT NULL + DROP EVENT SESSION MonitorPageSplits ON SERVER +GO + +CREATE EVENT SESSION MonitorPageSplits ON SERVER +ADD EVENT sqlserver.page_split +( + ACTION (sqlserver.database_id, sqlserver.sql_text) + WHERE sqlserver.database_id = 2 +) +ADD TARGET package0.ring_buffer +WITH (MAX_DISPATCH_LATENCY = 1 SECONDS) +GO + +ALTER EVENT SESSION MonitorPageSplits ON SERVER STATE = start; +GO + +/* +SELECT + event_time = XEvent.value('(@timestamp)[1]','datetime') + , orig_file_id = XEvent.value('(data[@name=''file_id'']/value)[1]','int') + , orig_page_id = XEvent.value('(data[@name=''page_id'']/value)[1]','int') + , database_id = XEvent.value('(data[@name=''database_id'']/value)[1]','int') + , OBJECT_ID = p.OBJECT_ID + , index_id = p.index_id + , OBJECT_NAME = OBJECT_NAME(p.OBJECT_ID) + , index_name = i.name + , rowset_id = XEvent.value('(data[@name=''rowset_id'']/value)[1]','bigint') + , splitOperation = XEvent.value('(data[@name=''splitOperation'']/text)[1]','varchar(255)') + , new_page_file_id = XEvent.value('(data[@name=''new_page_file_id'']/value)[1]','int') + , new_page_page_id = XEvent.value('(data[@name=''new_page_page_id'']/value)[1]','int') + , sql_text = XEvent.value('(action[@name=''sql_text'']/value)[1]','varchar(max)') +FROM +( + SELECT CAST(target_data AS XML) AS target_data + FROM sys.dm_xe_session_targets xst + JOIN sys.dm_xe_sessions xs ON xs.address = xst.event_session_address + WHERE xs.name = 'MonitorPageSplits' +) AS tab (target_data) +CROSS APPLY target_data.nodes('/RingBufferTarget/event') AS EventNodes(XEvent) +LEFT JOIN sys.allocation_units au + ON au.container_id = XEvent.value('(data[@name=''rowset_id'']/value)[1]','bigint') +LEFT JOIN sys.partitions p + ON p.partition_id = au.container_id +LEFT JOIN sys.indexes i + ON p.OBJECT_ID = i.OBJECT_ID + AND p.index_id = i.index_id + +-- View the Page allocations +DBCC IND(tempdb, split_page, -1); +*/ diff --git a/Extended_Events/ProcedureWaits.sql b/Extended_Events/ProcedureWaits.sql new file mode 100644 index 00000000..78a6225b --- /dev/null +++ b/Extended_Events/ProcedureWaits.sql @@ -0,0 +1,18 @@ +/* +Original link: https://www.scarydba.com/2018/02/05/wait-statistics-query/ +Author: Grant Fritchey +*/ + +CREATE EVENT SESSION ProcedureWaits +ON SERVER + ADD EVENT sqlos.wait_completed + (SET collect_wait_resource = (1) + WHERE (sqlserver.equal_i_sql_unicode_string(sqlserver.database_name, N'AdventureWorks2017'))), + ADD EVENT sqlserver.module_end + (WHERE ( sqlserver.database_name = N'AdventureWorks2017' + AND object_name = N'ProductTransactionHistoryByReference')), + ADD EVENT sqlserver.rpc_completed + (WHERE (sqlserver.database_name = N'AdventureWorks2017')), + ADD EVENT sqlserver.rpc_starting + (WHERE (sqlserver.database_name = N'AdventureWorks2017')) +WITH (TRACK_CAUSALITY = ON); diff --git a/Extended_Events/README.md b/Extended_Events/README.md new file mode 100644 index 00000000..6c1af0e8 --- /dev/null +++ b/Extended_Events/README.md @@ -0,0 +1,22 @@ +# SQL Server Extended Events +SQL Server Extended Events has a highly scalable and highly configurable architecture that allows users to collect as much or as little information as is necessary to troubleshoot or identify a performance problem. + +Useful links: + - [Extended Events Microsoft Docs](https://docs.microsoft.com/en-us/sql/relational-databases/extended-events/extended-events) + - [Find Your Dark Queries](http://michaeljswart.com/2017/04/finding-your-dark-queries/) + - [Finding Blocked Processes and Deadlocks using SQL Server Extended Events](https://www.brentozar.com/archive/2014/03/extended-events-doesnt-hard/) + - [What event information can I get by default from SQL Server?](http://dba.stackexchange.com/questions/48052/what-event-information-can-i-get-by-default-from-sql-server) + - [Understanding the sql_text Action in Extended Events](https://www.sqlskills.com/blogs/jonathan/understanding-the-sql_text-action-in-extended-events/) + - [Extended Events Series (1 of 31) – An Overview of Extended Events](https://www.sqlskills.com/blogs/jonathan/extended-events-overview/) + - [Deep dive into the Extended Events Histogram target](https://www.sqlshack.com/deep-dive-into-the-extended-events-histogram-target/) + - [Paul S. Randal articles about extended events](https://www.sqlskills.com/blogs/paul/category/extended-events/) + - [Jonathan Kehayias articles about extended events](https://www.sqlskills.com/blogs/jonathan/category/extended-events/) + - [Jonathan Kehayias extended 31 day series](https://www.sqlskills.com/blogs/jonathan/category/xevent-a-day-series/) + - [Erin Stellato articles about extended events](https://www.sqlskills.com/blogs/erin/category/extended-events/) + - [Stairway to SQL Server Extended Events](http://www.sqlservercentral.com/stairway/134867/) (by Erin Stellato) + - [Measuring “Observer Overhead” of SQL Trace vs. Extended Events](https://sqlperformance.com/2012/10/sql-trace/observer-overhead-trace-extended-events) (by Jonathan Kehayias) + +Courses: + - [SQL Server: Introduction to Extended Events](https://www.pluralsight.com/courses/sqlserver-basicxevents) (by Jonathan Kehayias) + - [SQL Server: Advanced Extended Events](https://www.pluralsight.com/courses/sqlserver-advanced-xevents) (by Jonathan Kehayias) + - [SQL Server: Replacing Profiler with Extended Events](https://www.pluralsight.com/courses/sqlserver-replacing-profiler-extended-events) (by Erin Stellato) diff --git a/Extended_Events/Recompile_Histogram.sql b/Extended_Events/Recompile_Histogram.sql new file mode 100644 index 00000000..20719a2b --- /dev/null +++ b/Extended_Events/Recompile_Histogram.sql @@ -0,0 +1,24 @@ +CREATE EVENT SESSION Recompile_Histogram ON SERVER + ADD EVENT sqlserver.sql_statement_recompile + ADD TARGET package0.histogram ( + SET filtering_event_name=N'sqlserver.sql_statement_recompile', + source=N'recompile_cause', + source_type=(0) ); + +ALTER EVENT SESSION Recompile_Histogram ON SERVER STATE = START; + +SELECT sv.subclass_name as recompile_cause, + shredded.recompile_count + FROM sys.dm_xe_session_targets AS xet + JOIN sys.dm_xe_sessions AS xe + ON (xe.address = xet.event_session_address) + CROSS APPLY ( SELECT CAST(xet.target_data as xml) ) as target_data_xml ([xml]) + CROSS APPLY target_data_xml.[xml].nodes('/HistogramTarget/Slot') AS nodes (slot_data) + CROSS APPLY ( + SELECT nodes.slot_data.value('(value)[1]', 'int') AS recompile_cause, + nodes.slot_data.value('(@count)[1]', 'int') AS recompile_count + ) as shredded + JOIN sys.trace_subclass_values AS sv + ON shredded.recompile_cause = sv.subclass_value + WHERE xe.name = 'Recompile_Histogram' + AND sv.trace_event_id = 37 -- SP:Recompile; diff --git a/Extended_Events/TrackPageSplits.sql b/Extended_Events/TrackPageSplits.sql new file mode 100644 index 00000000..c35133ed --- /dev/null +++ b/Extended_Events/TrackPageSplits.sql @@ -0,0 +1,70 @@ +/* +Original link: https://www.sqlskills.com/blogs/jonathan/tracking-problematic-pages-splits-in-sql-server-2012-extended-events-no-really-this-time/ +Author: Wayne Sheffield +*/ +-- If the Event Session exists DROP it +IF EXISTS (SELECT 1 + FROM sys.server_event_sessions + WHERE name = 'TrackPageSplits') + DROP EVENT SESSION [TrackPageSplits] ON SERVER; + +-- Create the Event Session to track LOP_DELETE_SPLIT transaction_log operations in the server +CREATE EVENT SESSION [TrackPageSplits] +ON SERVER +ADD EVENT sqlserver.transaction_log( + WHERE operation = 11 -- LOP_DELETE_SPLIT +) +ADD TARGET package0.histogram( + SET filtering_event_name = 'sqlserver.transaction_log', + source_type = 0, -- Event Column + source = 'database_id'); +GO + +-- Start the Event Session +ALTER EVENT SESSION [TrackPageSplits] ON SERVER STATE=START; +GO + + +-- Query the target data to identify the worst splitting database_id +SELECT + n.value('(value)[1]', 'bigint') AS database_id, + DB_NAME(n.value('(value)[1]', 'bigint')) AS database_name, + n.value('(@count)[1]', 'bigint') AS split_count +FROM +(SELECT CAST(target_data as XML) target_data + FROM sys.dm_xe_sessions AS s + JOIN sys.dm_xe_session_targets t + ON s.address = t.event_session_address + WHERE s.name = 'SQLskills_TrackPageSplits' + AND t.target_name = 'histogram' ) as tab +CROSS APPLY target_data.nodes('HistogramTarget/Slot') as q(n); + + +-- Query Target Data to get the top splitting objects in the database: +SELECT + o.name AS table_name, + i.name AS index_name, + tab.split_count, + i.fill_factor +FROM ( SELECT + n.value('(value)[1]', 'bigint') AS alloc_unit_id, + n.value('(@count)[1]', 'bigint') AS split_count + FROM + (SELECT CAST(target_data as XML) target_data + FROM sys.dm_xe_sessions AS s + JOIN sys.dm_xe_session_targets t + ON s.address = t.event_session_address + WHERE s.name = 'TrackPageSplits' + AND t.target_name = 'histogram' ) as tab + CROSS APPLY target_data.nodes('HistogramTarget/Slot') as q(n) +) AS tab +JOIN sys.allocation_units AS au + ON tab.alloc_unit_id = au.allocation_unit_id +JOIN sys.partitions AS p + ON au.container_id = p.partition_id +JOIN sys.indexes AS i + ON p.object_id = i.object_id + AND p.index_id = i.index_id +JOIN sys.objects AS o + ON p.object_id = o.object_id +WHERE o.is_ms_shipped = 0; \ No newline at end of file diff --git a/Extended_Events/TrackTFChange.sql b/Extended_Events/TrackTFChange.sql new file mode 100644 index 00000000..23709bfb --- /dev/null +++ b/Extended_Events/TrackTFChange.sql @@ -0,0 +1,49 @@ +/* +Original link: http://jasonbrimhall.info/2018/12/06/capture-the-flag-the-trace-flag/ +Author: Jason Brimhall +*/ +-- If the Event Session exists DROP it +IF EXISTS (SELECT 1 FROM sys.server_event_sessions WHERE name = N'TrackTFChange') + DROP EVENT SESSION TrackTFChange ON SERVER; + +CREATE EVENT SESSION TrackTFChange ON SERVER +ADD EVENT sqlserver.trace_flag_changed( + ACTION (sqlserver.database_name,sqlserver.client_hostname,sqlserver.client_app_name, + sqlserver.sql_text, + sqlserver.session_id) + -- WHERE sqlserver.client_app_name <> 'Microsoft SQL Server Management Studio - Transact-SQL IntelliSense' + ) +ADD TARGET package0.ring_buffer +WITH (MAX_DISPATCH_LATENCY=5SECONDS, TRACK_CAUSALITY=ON); +GO + +ALTER EVENT SESSION TrackTFChange ON SERVER STATE = START; +GO + + +SELECT event_data.value('(event/@name)[1]', 'varchar(50)') AS event_name + , event_data.value('(event/@timestamp)[1]','varchar(max)') as timestamp + , event_data.value('(event/data[@name="flag"]/value)[1]', 'bigint') AS TraceFlag + , event_data.value('(event/data[@name="type"]/text)[1]', 'varchar(max)') AS FlagType + , CASE event_data.value('(event/data[@name="new_value"]/value)[1]','int') + WHEN 0 then 'Enabled' + WHEN 1 then 'Disabled' + END as NewValue + , event_data.value('(event/action[@name="sql_text"]/value)[1]', 'varchar(max)') AS sql_text + , event_data.value('(event/action[@name="database_name"]/value)[1]', 'varchar(max)') AS DBQueryExecutedFrom + , event_data.value('(event/action[@name="client_hostname"]/value)[1]', 'varchar(max)') AS ClientHost + , event_data.value('(event/action[@name="client_app_name"]/value)[1]', 'varchar(max)') AS appname + , event_data.value('(event/action[@name="session_id"]/value)[1]', 'varchar(max)') AS session_id +FROM(SELECT evnt.query('.') AS event_data + FROM + ( SELECT CAST(target_data AS xml) AS TargetData + FROM sys.dm_xe_sessions AS s + INNER JOIN sys.dm_xe_session_targets AS t + ON s.address = t.event_session_address + WHERE s.name = 'TrackTFChange' + AND t.target_name = 'ring_buffer' + ) AS tab + CROSS APPLY TargetData.nodes ('RingBufferTarget/event') AS split(evnt) + ) AS evts(event_data) +WHERE event_data.value('(event/@name)[1]', 'varchar(50)') = 'trace_flag_changed' +ORDER BY timestamp ASC; diff --git a/Extended_Events/system_health.sql b/Extended_Events/system_health.sql new file mode 100644 index 00000000..9d846ccd --- /dev/null +++ b/Extended_Events/system_health.sql @@ -0,0 +1,50 @@ +/* +Author: +Original link: https://blog.sqlauthority.com/2017/01/09/sql-server-get-historical-deadlock-information-system-health-extended-events/ +http://sqlworldwide.com/sql-server-system_health-session-retention +*/ +CREATE EVENT SESSION [system_health] ON SERVER +ADD EVENT sqlclr.clr_allocation_failure( + ACTION(package0.callstack,sqlserver.session_id)), +ADD EVENT sqlclr.clr_virtual_alloc_failure( + ACTION(package0.callstack,sqlserver.session_id)), +ADD EVENT sqlos.memory_broker_ring_buffer_recorded, +ADD EVENT sqlos.memory_node_oom_ring_buffer_recorded( + ACTION(package0.callstack,sqlserver.session_id,sqlserver.sql_text,sqlserver.tsql_stack)), +ADD EVENT sqlos.process_killed( + ACTION(package0.callstack,sqlserver.client_app_name,sqlserver.client_hostname,sqlserver.client_pid,sqlserver.query_hash,sqlserver.session_id,sqlserver.session_nt_username)), +ADD EVENT sqlos.scheduler_monitor_deadlock_ring_buffer_recorded, +ADD EVENT sqlos.scheduler_monitor_non_yielding_iocp_ring_buffer_recorded, +ADD EVENT sqlos.scheduler_monitor_non_yielding_ring_buffer_recorded, +ADD EVENT sqlos.scheduler_monitor_non_yielding_rm_ring_buffer_recorded, +ADD EVENT sqlos.scheduler_monitor_stalled_dispatcher_ring_buffer_recorded, +ADD EVENT sqlos.scheduler_monitor_system_health_ring_buffer_recorded, +ADD EVENT sqlos.wait_info( + ACTION(package0.callstack,sqlserver.session_id,sqlserver.sql_text) + WHERE ([duration]>(15000) AND ([wait_type]>=N'LATCH_NL' AND ([wait_type]>=N'PAGELATCH_NL' AND [wait_type]<=N'PAGELATCH_DT' OR [wait_type]<=N'LATCH_DT' OR [wait_type]>=N'PAGEIOLATCH_NL' AND [wait_type]<=N'PAGEIOLATCH_DT' OR [wait_type]>=N'IO_COMPLETION' AND [wait_type]<=N'NETWORK_IO' OR [wait_type]=N'RESOURCE_SEMAPHORE' OR [wait_type]=N'SOS_WORKER' OR [wait_type]>=N'FCB_REPLICA_WRITE' AND [wait_type]<=N'WRITELOG' OR [wait_type]=N'CMEMTHREAD' OR [wait_type]=N'TRACEWRITE' OR [wait_type]=N'RESOURCE_SEMAPHORE_MUTEX') OR [duration]>(30000) AND [wait_type]<=N'LCK_M_RX_X'))), ADD EVENT sqlos.wait_info_external( ACTION(package0.callstack,sqlserver.session_id,sqlserver.sql_text) WHERE ([duration]>(5000) AND ([wait_type]>=N'PREEMPTIVE_OS_GENERICOPS' AND [wait_type]<=N'PREEMPTIVE_OS_ENCRYPTMESSAGE' OR [wait_type]>=N'PREEMPTIVE_OS_INITIALIZESECURITYCONTEXT' AND [wait_type]<=N'PREEMPTIVE_OS_QUERYSECURITYCONTEXTTOKEN' OR [wait_type]>=N'PREEMPTIVE_OS_AUTHZGETINFORMATIONFROMCONTEXT' AND [wait_type]<=N'PREEMPTIVE_OS_REVERTTOSELF' OR [wait_type]>=N'PREEMPTIVE_OS_CRYPTACQUIRECONTEXT' AND [wait_type]<=N'PREEMPTIVE_OS_DEVICEOPS' OR [wait_type]>=N'PREEMPTIVE_OS_NETGROUPGETUSERS' AND [wait_type]<=N'PREEMPTIVE_OS_NETUSERMODALSGET' OR [wait_type]>=N'PREEMPTIVE_OS_NETVALIDATEPASSWORDPOLICYFREE' AND [wait_type]<=N'PREEMPTIVE_OS_DOMAINSERVICESOPS' OR [wait_type]=N'PREEMPTIVE_OS_VERIFYSIGNATURE' OR [duration]>(45000) AND ([wait_type]>=N'PREEMPTIVE_OS_SETNAMEDSECURITYINFO' AND [wait_type]<=N'PREEMPTIVE_CLUSAPI_CLUSTERRESOURCECONTROL' OR [wait_type]>=N'PREEMPTIVE_OS_RSFXDEVICEOPS' AND [wait_type]<=N'PREEMPTIVE_OS_DSGETDCNAME' OR [wait_type]>=N'PREEMPTIVE_OS_DTCOPS' AND [wait_type]<=N'PREEMPTIVE_DTC_ABORT' OR [wait_type]>=N'PREEMPTIVE_OS_CLOSEHANDLE' AND [wait_type]<=N'PREEMPTIVE_OS_FINDFILE' OR [wait_type]>=N'PREEMPTIVE_OS_GETCOMPRESSEDFILESIZE' AND [wait_type]<=N'PREEMPTIVE_ODBCOPS' OR [wait_type]>=N'PREEMPTIVE_OS_DISCONNECTNAMEDPIPE' AND [wait_type]<=N'PREEMPTIVE_CLOSEBACKUPMEDIA' OR [wait_type]=N'PREEMPTIVE_OS_AUTHENTICATIONOPS' OR [wait_type]=N'PREEMPTIVE_OS_FREECREDENTIALSHANDLE' OR [wait_type]=N'PREEMPTIVE_OS_AUTHORIZATIONOPS' OR [wait_type]=N'PREEMPTIVE_COM_COCREATEINSTANCE' OR [wait_type]=N'PREEMPTIVE_OS_NETVALIDATEPASSWORDPOLICY' OR [wait_type]=N'PREEMPTIVE_VSS_CREATESNAPSHOT')))), ADD EVENT sqlserver.connectivity_ring_buffer_recorded(SET collect_call_stack=(1)), ADD EVENT sqlserver.error_reported( ACTION(package0.callstack,sqlserver.database_id,sqlserver.session_id,sqlserver.sql_text,sqlserver.tsql_stack) WHERE ([severity]>=(20) OR ([error_number]=(17803) OR [error_number]=(701) OR [error_number]=(802) OR [error_number]=(8645) OR [error_number]=(8651) OR [error_number]=(8657) OR [error_number]=(8902) OR [error_number]=(41354) OR [error_number]=(41355) OR [error_number]=(41367) OR [error_number]=(41384) OR [error_number]=(41336) OR [error_number]=(41309) OR [error_number]=(41312) OR [error_number]=(41313)))), +ADD EVENT sqlserver.security_error_ring_buffer_recorded(SET collect_call_stack=(1)), +ADD EVENT sqlserver.sp_server_diagnostics_component_result(SET collect_data=(1) + WHERE ([sqlserver].[is_system]=(1) AND [component]<>(4))), +ADD EVENT sqlserver.sql_exit_invoked( + ACTION(package0.callstack,sqlserver.client_app_name,sqlserver.client_hostname,sqlserver.client_pid,sqlserver.query_hash,sqlserver.session_id,sqlserver.session_nt_username)), +ADD EVENT sqlserver.xml_deadlock_report +ADD TARGET package0.event_file(SET filename=N'system_health.xel',max_file_size=(5),max_rollover_files=(4)), +ADD TARGET package0.ring_buffer(SET max_events_limit=(5000),max_memory=(4096)) +WITH (MAX_MEMORY=4096 KB,EVENT_RETENTION_MODE=ALLOW_SINGLE_EVENT_LOSS,MAX_DISPATCH_LATENCY=120 SECONDS,MAX_EVENT_SIZE=0 KB,MEMORY_PARTITION_MODE=NONE,TRACK_CAUSALITY=OFF,STARTUP_STATE=ON) +GO + +ALTER EVENT SESSION [system_health] +ON SERVER STATE = STOP +GO +ALTER EVENT SESSION [system_health] +ON SERVER DROP TARGET package0.event_file +ALTER EVENT SESSION [system_health] +ON SERVER ADD TARGET package0.event_file + (SET FILENAME=N'system_health.xel',--name of the session + max_file_size=(25), --size of each file in MB + max_rollover_files=(40)) --how many files you want to keep +GO + +ALTER EVENT SESSION [system_health] +ON SERVER STATE = START; +GO \ No newline at end of file diff --git a/Help/README.md b/Help/README.md new file mode 100644 index 00000000..2dae4b4c --- /dev/null +++ b/Help/README.md @@ -0,0 +1,19 @@ +# SQL Help + +Need free help? Just follow this simple step: +1. [Join GitHub](https://github.com/join) +2. Add star to this repo +3. Open new issue with a detailed explanation of your problem + +## How to ask right? + +1. [Create issue](https://github.com/ktaranov/sqlserver-kit/issues/new) in this repo or question on stackoverflow.com +2. Include: + 1. Operation system with detailed version (Windows, Ubuntu, Macos etc.). Example: `Microsoft Windows [Version 10.0.16299.248]` + 2. Relation database type (SQL Server preferred, Orcale, MySQL, PostgreSQL, SQLite etc.) with detailed version. Example: `Microsoft SQL Server 2017 (RTM-CU1) (KB4038634) - 14.0.3006.16 (X64) ... on Windows 10 Pro 10.0` + 3. Demo script (if necessary) to reproduce your problem. +3. Distribute your question using this channels: + 1. [Twitter #sqlhelp](https://twitter.com/search?q=%23sqlhelp&src=tyah) with `#sqlhelp` hash tag + 2. [Slack #sqlhelp](https://sqlcommunity.slack.com/messages/sqlhelp/) (more than 700 People) + 3. [SQLServerCentral Forum](https://www.sqlservercentral.com/Forums/) + 4. Telegram chat (Russian preferred): https://t.me/sqlcom diff --git a/LICENSE b/LICENSE new file mode 100644 index 00000000..2ca2ad5f --- /dev/null +++ b/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2015-2018 Konstantin Taranov + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/LICENSE.md b/LICENSE.md deleted file mode 100644 index 8c5ce02c..00000000 --- a/LICENSE.md +++ /dev/null @@ -1,9 +0,0 @@ -# The MIT License (MIT) - -Copyright (c) 2016 Konstantin Taranov - -Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/PowerShell/Add-UserToRole.ps1 b/PowerShell/Add-UserToRole.ps1 new file mode 100644 index 00000000..6786cfad --- /dev/null +++ b/PowerShell/Add-UserToRole.ps1 @@ -0,0 +1,93 @@ +#Requires -module sqlserver +#Requires -module dbatools + +#Link: https://sqldbawithabeard.com/2017/03/06/quickly-creating-test-users-in-sql-server-with-powershell-using-the-sqlserver-module-and-dbatools + +### Define some variables +$server = '' +$Password = "Password" +$Database = 'TheBeardsDatabase' +$Admins = Get-Content 'C:\temp\Admins.txt' +$Users = Get-Content 'C:\temp\Users.txt' +$LoginType = 'SQLLogin' +$userrole = 'Users' +$adminrole = 'Admin' + +# Create a SQL Server SMO Object +$srv = Connect-DbaSqlServer -SqlServer $server +$db = $srv.Databases[$Database] + +function Add-UserToRole +{ +param +( +[Parameter(Mandatory=$true, +ValueFromPipeline=$true, +ValueFromPipelineByPropertyName=$true, +ValueFromRemainingArguments=$false)] +[ValidateNotNullOrEmpty()] +[string]$Password, +[Parameter(Mandatory=$true, +ValueFromPipeline=$true, +ValueFromPipelineByPropertyName=$true, +ValueFromRemainingArguments=$false)] +[ValidateNotNullOrEmpty()] +[string]$User, +[Parameter(Mandatory=$true, +ValueFromPipeline=$true, +ValueFromPipelineByPropertyName=$true, +ValueFromRemainingArguments=$false)] +[ValidateNotNullOrEmpty()] +[string]$Server, +[Parameter(Mandatory=$true, +ValueFromPipeline=$true, +ValueFromPipelineByPropertyName=$true, +ValueFromRemainingArguments=$false)] +[ValidateNotNullOrEmpty()] +[string]$Role, +[Parameter(Mandatory=$true, +ValueFromPipeline=$true, +ValueFromPipelineByPropertyName=$true, +ValueFromRemainingArguments=$false)] +[ValidateSet("SQLLogin", "WindowsGroup", "WindowsUser")] +[string]$LoginType +) + +if(!($srv.Logins.Contains($User))) +{ +if($LoginType -eq 'SQLLogin') +{ +$Pass = ConvertTo-SecureString -String $Password -AsPlainText -Force +$Credential = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $User, $Pass +Add-SqlLogin -ServerInstance $Server -LoginName $User -LoginType $LoginType -DefaultDatabase tempdb -Enable -GrantConnectSql -LoginPSCredential $Credential +} +elseif($LoginType -eq 'WindowsGroup' -or $LoginType -eq 'WindowsUser') +{ +Add-SqlLogin -ServerInstance $Server -LoginName $User -LoginType $LoginType -DefaultDatabase tempdb -Enable -GrantConnectSql +} +} +if (!($db.Users.Contains($User))) +{ + +# Add user to database + +$usr = New-Object ('Microsoft.SqlServer.Management.Smo.User') ($db, $User) +$usr.Login = $User +$usr.Create() + +} +#Add User to the Role +$db.roles[$role].AddMember($User) +} + +foreach($User in $Users) +{ +Add-UserToRole -Password $Password -User $user -Server $server -Role $Userrole -LoginType SQLLogin +} + +foreach($User in $Admins) +{ +Add-UserToRole -Password $Password -User $user -Server $server -Role $adminrole -LoginType SQLLogin +} + +Get-DbaRoleMember -SqlInstance $server |ogv \ No newline at end of file diff --git a/PowerShell/Clone-SQLLogin.ps1 b/PowerShell/Clone-SQLLogin.ps1 new file mode 100644 index 00000000..26ea2ea0 --- /dev/null +++ b/PowerShell/Clone-SQLLogin.ps1 @@ -0,0 +1,304 @@ +<# +.Synopsis + Clone a SQL Server Login based on another exsiting login. + +.DESCRIPTION + Clone a SQL Server Login based on another exsiting login on one or multiple servers and the process can generate a script for auditing purpose. + +.EXAMPLE + The following command scripts out the permissions of login account [John] and generates the script at "c:\temp\clone.sql" + Notice, parameters [OldLogin] and [NewLogin] uses the same value of "John" + Clone-SQLLogin -Server Server1, Server2 -OldLogin John -NewLogin John -FilePath "c:\temp\clone.sql" + +.EXAMPLE + The following command exports a script that can be used to clone login account [John] for new login account [David], and the script is created at "c:\temp\clone.sql" + also the -Execute parameter means the new account "David" will be created + Clone-SQLLogin -Server Server1, Server2 -OldLogin John -NewLogin David -NewPassword 'P@$$W0rd' -FilePath "c:\temp\clone.sql" -Execute; + +.Parameter ServerInstance + ServerInstance is of string array datat ype, and can accept a string of sql instance names, spearated by comma. (mandatory) + +.Parameter OldLogin + The login account is the source where all the permissions will be scripted out and to be used for the NewLogin account (mandatory) + +.Parameter NewLogin + The login account is the target account that we want to clone (mandatory) + +.Parameter NewPassword + The password for the new login account if we want to create the login, default to empty string "" (optional) + +.Parameter FilePath + The full path name for the generated sql script (optional) + +.Parameter Execute + This is a swich parameter, if present, it means we need to create the NewLogin account. + +.OUTPUTS + none + +.NOTES + A few service broker related permissions are not covered in this version 1. + Original link: https://www.mssqltips.com/sqlservertip/4572/cloning-a-sql-server-login-with-all-permissions-using-powershell/ + Author: Jeffrey Yao +#> +#requires -version 3.0 +add-type -assembly "Microsoft.SqlServer.Smo, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91"; #if Version-11.xx means sql server 2012 + +function Clone-SQLLogin +{ + [CmdletBinding(SupportsShouldProcess=$true)] + + Param + ( + # Param1 help description + [Parameter(Mandatory=$true, + ValueFromPipeline=$true, + Position=0)] + [string[]] $ServerInstance, + + [Parameter(Mandatory=$true)] + [string] $OldLogin, + + [Parameter(Mandatory=$true)] + [string] $NewLogin, + + [string] $NewPassword="", + + [string] $FilePath="", + [switch] $Execute + ) + + Begin + { + [string]$newUser=$newLogin.Substring($newLogin.IndexOf('\')+1); # if $newLogin is a Windows account, such as domain\username, since "\" is invalid in db user name, we need to remove it + + [hashtable[]] $hta = @(); # a hashtable array + [hashtable] $h = @{}; + + + if ( ($FilePath -ne "") -and (test-path -Path $FilePath)) + { del -Path $filepath; } + } + Process + { + + foreach ($sqlinstance in $ServerInstance) + { + + $svr = new-object "Microsoft.SqlServer.Management.Smo.Server" $sqlinstance; + if ($svr.Edition -eq $null) + { + Write-warning "$sqlinstance cannot be connected"; + continue; + } + + [string]$str = ""; + + if (-not $WindowsLogin) + { + $str += "create login $($newLogin) with password='$($newPassword)'; `r`n" + } + else + { + $str += "create login $($newLogin) from windows;`r`n " + } + + #find role membership for $login + if ($svr.logins[$OldLogin] -ne $null) + { $svr.logins[$oldLogin].ListMembers() | % {$str += "exec sp_addsrvrolemember @loginame = '$($newLogin)', @rolename = '$($_)'; `r`n"};} + else + { Write-warning "$oldLogin does not exist on server [$($svr.name)] so this sql instance is skipped"; continue; } + + # find permission granted to $login + + + $svr.EnumObjectPermissions($oldLogin) | % { if ($_.PermissionState -eq 'GrantWithGrant') + {$str += "GRANT $($_.PermissionType) on $($_.ObjectClass)::[$($_.ObjectName)] to [$newLogin] WITH GRANT OPTION; `r`n"} + else + { $str += "$($_.PermissionState) $($_.PermissionType) on $($_.ObjectClass)::[$($_.ObjectName)] to [$newLogin]; `r`n"} } + + $svr.EnumServerPermissions($oldLogin) | % { if ($_.PermissionState -eq 'GrantWithGrant') + { $str += "GRANT $($_.PermissionType) to [$newLogin] WITH GRANT OPTION; `r`n"} + else + { $str += "$($_.PermissionState) $($_.PermissionType) to [$newLogin]; `r`n" } } + + $h = @{Server=$sqlinstance; DBName = 'master'; sqlcmd = $str}; + $hta += $h; + #$str; + + + $ObjPerms = @(); # store login mapped users in each db on $svr + $Roles = @(); + $DBPerms = @(); + foreach ($itm in $svr.logins[$oldLogin].EnumDatabaseMappings()) + { + if ($svr.Databases[$itm.DBName].Status -ne 'Normal') + { continue;} + + if ($svr.Databases[$itm.DBName].Users[$newUser] -eq $null) + { $hta += @{Server=$sqlinstance; DBName = $itm.DBName; sqlcmd = "create user [$newUser] for login [$newLogin];`r`n" }; } + + $r = $svr.Databases[$itm.DBName].Users[$itm.UserName].EnumRoles(); + if ($r -ne $null) + { + $r | % { $hta += @{Server=$sqlinstance; DBName = $itm.DBName; sqlcmd = "exec sp_addrolemember @rolename='$_', @memberName='$($newUser)';`r`n" } } + } + + + $p = $svr.Databases[$itm.DBName].EnumDatabasePermissions($itm.UserName); + if ($p -ne $null) + { $ObjPerms += @{DBName=$itm.DBName; Permission=$p};} + + $p = $svr.Databases[$itm.DBName].EnumObjectPermissions($itm.UserName) + if ($p -ne $null) + { $ObjPerms += @{DBName=$itm.DBName; Permission=$p}; } + + $p = $svr.Databases[$itm.DBName].Certificates | % {$_.EnumObjectPermissions($itm.UserName)} + if ($p -ne $null) + { $ObjPerms += @{DBName=$itm.DBName; Permission=$p};} + + #AsymmetricKeys + $p = $svr.Databases[$itm.DBName].AsymmetricKeys | % {$_.EnumObjectPermissions($itm.UserName)} + if ($p -ne $null) + { $ObjPerms += @{DBName=$itm.DBName; Permission=$p}; } + + #SymmetricKeys + $p = $svr.Databases[$itm.DBName].SymmetricKeys | % {$_.EnumObjectPermissions($itm.UserName)} + if ($p -ne $null) + { $ObjPerms += @{DBName=$itm.DBName; Permission=$p};} + + #XMLSchemaCollections + $p = $svr.Databases[$itm.DBName].XMLSchemaCollections | % {$_.EnumObjectPermissions($itm.UserName)} + if ($p -ne $null) + { $ObjPerms += @{DBName=$itm.DBName; Permission=$p};} + + #service broker components + $p = $svr.Databases[$itm.DBName].ServiceBroker.MessageTypes | % {$_.EnumObjectPermissions($itm.UserName)} + if ($p -ne $null) + { $ObjPerms += @{DBName=$itm.DBName; Permission=$p};} + + $p = $svr.Databases[$itm.DBName].ServiceBroker.Routes | % {$_.EnumObjectPermissions($itm.UserName)} + if ($p -ne $null) + { $ObjPerms += @{DBName=$itm.DBName; Permission=$p};} + + $p = $svr.Databases[$itm.DBName].ServiceBroker.ServiceContracts | % {$_.EnumObjectPermissions($itm.UserName)} + if ($p -ne $null) + { $ObjPerms += @{DBName=$itm.DBName; Permission=$p};} + + $p = $svr.Databases[$itm.DBName].ServiceBroker.Services | % {$_.EnumObjectPermissions($itm.UserName)} + if ($p -ne $null) + { $ObjPerms += @{DBName=$itm.DBName; Permission=$p};} + + #Full text + $p = $svr.Databases[$itm.DBName].FullTextCatalogs | % {$_.EnumObjectPermissions($itm.UserName)} + if ($p -ne $null) + { $ObjPerms += @{DBName=$itm.DBName; Permission=$p};} + + $p = $svr.Databases[$itm.DBName].FullTextStopLists | % {$_.EnumObjectPermissions($itm.UserName)} + if ($p -ne $null) + { $ObjPerms += @{DBName=$itm.DBName; Permission=$p};} + } + + + #generate t-sql to apply permission using SMO only + #[string]$str = ([System.String]::Empty) + foreach ($pr in $ObjPerms) + { + + $h = @{Server=$sqlinstance; DBName=$($pr.DBName); sqlcmd=""}; + $str = "" #"use $($pr.DBName) `r`n" + foreach ($p in $pr.Permission) + { + [string]$op_state = $p.PermissionState; + + if ($p.ObjectClass -ne "ObjectOrColumn") + { + [string] $schema = ""; + + if ($p.ObjectSchema -ne $null) + { $schema = "$($p.ObjectSchema)."} + + [string]$option = ""; + + if ($op_state -eq "GRANTwithGrant") + { + $op_state = 'GRANT'; + $option = ' WITH GRANT OPTION'; + } + + + Switch ($p.ObjectClass) + { + 'Database' { $str += "$op_state $($p.PermissionType) to [$newUser]$option;`r`n";} + 'SqlAssembly' { $str += "$op_state $($p.PermissionType) ON Assembly::$($schema)$($p.ObjectName) to [$newUser]$option;`r`n";} + 'Schema' { $str += "$op_state $($p.PermissionType) ON SCHEMA::$($schema)$($p.ObjectName) to [$newUser]$option;`r`n";} + 'UserDefinedType' { $str += "$op_state $($p.PermissionType) ON TYPE::$($schema)$($p.ObjectName) to [$newUser]$option;`r`n";} + 'AsymmetricKey' { $str += "$op_state $($p.PermissionType) ON ASYMMETRIC KEY::$($schema)$($p.ObjectName) to [$newUser]$option;`r`n";} + 'SymmetricKey' { $str += "$op_state $($p.PermissionType) ON SYMMETRIC KEY::$($schema)$($p.ObjectName) to [$newUser]$option;`r`n";} + 'Certificate' { $str += "$op_state $($p.PermissionType) ON Certificate::$($schema)$($p.ObjectName) to [$newUser]$option`r`n";} + 'XmlNamespace' { $str += "$op_state $($p.PermissionType) ON XML SCHEMA COLLECTION::$($schema)$($p.ObjectName) to [$newUser]$option`r`n";} + 'FullTextCatalog' { $str += "$op_state $($p.PermissionType) ON FullText Catalog::$($schema)[$($p.ObjectName)] to [$newUser]$option`r`n";} + 'FullTextStopList' { $str += "$op_state $($p.PermissionType) ON FullText Stoplist::$($schema)[$($p.ObjectName)] to [$newUser]$option`r`n";} + 'MessageType' { $str += "$op_state $($p.PermissionType) ON Message Type::$($schema)[$($p.ObjectName)] to [$newUser]$option`r`n";} + 'ServiceContract' { $str += "$op_state $($p.PermissionType) ON Contract::$($schema)[$($p.ObjectName)] to [$newUser]$option`r`n";} + 'ServiceRoute' { $str += "$op_state $($p.PermissionType) ON Route::$($schema)[$($p.ObjectName)] to [$newUser]$option`r`n";} + 'Service' { $str += "$op_state $($p.PermissionType) ON Service::$($schema)[$($p.ObjectName)] to [$newUser]$option`r`n";} + #you can add other stuff like Available Group etc in this switch block as well + }#switch + + } + else + { + [string]$col = "" #if grant is on column level, we need to capture it + if ($p.ColumnName -ne $null) + { $col = "($($p.ColumnName))"}; + + $str += "$op_state $($p.PermissionType) ON Object::$($p.ObjectSchema).$($p.ObjectName) $col to [$newUser];`r`n"; + }#else + + } + #$str += "go`r`n"; + $h.sqlcmd = $str; + $hta += $h; + } + + + }#loop $ServerInstance + } #process block + End + { + [string] $sqlcmd = ""; + + if ($FilePath.Length -gt 3) # $FilePath is provided + { + [string]$servername=""; + + foreach ($h in $hta) + { + if ($h.Server -ne $Servername) + { + $ServerName=$h.Server; + $sqlcmd += ":connect $servername `r`n" + } + + $sqlcmd += "use $($h.DBName);`r`n" + $h.sqlcmd +"`r`ngo`r`n"; + + } + $sqlcmd | out-file -FilePath $FilePath -Append ; + } + + if ($Execute) + { + foreach ($h in $hta) + { + $server = new-object "Microsoft.sqlserver.management.smo.server" $h.Server; + $database = $server.databases[$h.DBName]; + $database.ExecuteNonQuery($h.sqlcmd) + } + } #$Execute + + }#end block +} #clone-sqllogin + +# test, change parameters to your own. The following creates a script about all permissions assigned to [Bobby] +# Clone-SQLLogin -Server "$env:ComputerName", "$env:ComputerName\sql2014" -OldLogin Bobby -NewLogin Bobby -FilePath "c:\temp\Bobby_perm.sql"; diff --git a/PowerShell/Compare-Server-Settings.ps1 b/PowerShell/Compare-Server-Settings.ps1 new file mode 100644 index 00000000..782e8838 --- /dev/null +++ b/PowerShell/Compare-Server-Settings.ps1 @@ -0,0 +1,25 @@ +#Requires -module dbatools + +<# +.SYNOPSIS + Compare settings for production and development SQL Server instance + +.PARAMETER $productionName + Production server name + +.PARAMETER $productionName + Production server name + +.NOTE +Original link: https://therestisjustcode.wordpress.com/2017/09/12/t-sql-tuesday-94-automating-configuration-comparison/ +Author: Andy Levy +Modified: Konstantin Taranov 2017-09-20 +#> + +$productionName = 'localhost'; +$developmentName = 'localhost'; + +$ProductionConfiguration = Get-DbaSpConfigure -ServerInstance $productionName; +# -SqlCredential (Get-Credential -Message "Production Credentials" -UserName MySQLLogin); +$DevelopmentConfiguration = Get-DbaSpConfigure -ServerInstance $developmentName; +Compare-Object -ReferenceObject $DevelopmentConfiguration -DifferenceObject $ProductionConfiguration -property ConfigName, RunningValue | Sort-Object ConfigName; diff --git a/PowerShell/Create-Deploy-SQL-Script.ps1 b/PowerShell/Create-Deploy-SQL-Script.ps1 new file mode 100644 index 00000000..ac23bf50 --- /dev/null +++ b/PowerShell/Create-Deploy-SQL-Script.ps1 @@ -0,0 +1,207 @@ +#requires -version 4 +# https://www.red-gate.com/simple-talk/sql/database-delivery/how-to-build-and-deploy-a-database-from-object-level-source-in-a-vcs/ +<# this script uses powershell v4. It will need a bit of work if you are stuck on previous versions of PowerShell. #> +$Server = 'SAM_540_TAR' #the name of the server +$Instance = 'MSSQLSERVER' #The server instance +$Database = 'NIIGAZ' #the database +#this is the directory where you wish to place your scripts and from which they will be executed +$DatabaseScriptPath = "$($env:HOMEDRIVE)$($env:HOMEPATH)\Documents\$($Database)" +#in case you wish debug information +$WarningPreference='Stop' #because if it can't connect to the database, you only get a warning +$VerbosePreference = "SilentlyContinue" + +$DoWeLookForParentObjects = $true #don't change this! +$SMO = 'Microsoft.SqlServer.Management.SMO' +#read in the SQLPS module if it isn't in already +import-module 'sqlps' -DisableNameChecking + +trap { + Write-Error ('Failed to access "{0}" : {1} in "{2}"' -f "$server/$instance", ` + $_.Exception.Message, $_.InvocationInfo.ScriptName) + exit + } +<# SMO likes to do build scripts in ObjectType order in a build script. The script starts with Database properties, followed by Schemas, XML Schema Collections and Types: none of which can have dependent objects. +Table Types and Procedures come next. Then, in dependency order, Functions, Tables and Views. Then come Clustered indexes, non-clustered indexes, Primary XML Indexes, XML indexes, Default Constraints, Foreign keys Check constraints, triggers and lastly, extended properties. +Here we define their order, but this order may need tweaking +#> +$ObjectTypeOrder = @{ + 'users' = 1; + 'Roles' = 2; + 'Schemas' = 3; + 'Assemblies' = 4; + 'AsymmetricKeys' = 5; + 'Certificates' = 6; + 'XmlSchemaCollections' = 7; + 'FileGroups' = 8; + 'FullTextCatalogs' = 9; + 'FullTextStopLists' = 10; + 'LogFiles' = 11; + 'PartitionFunctions' = 12; + 'PartitionSchemes' = 13; + 'PlanGuides' = 14; + 'UserDefinedTypes' = 15; + 'UserDefinedDataTypes' = 16; + 'UserDefinedTableTypes' = 17; + 'UserDefinedAggregates' = 18; + 'ApplicationRoles' = 19; + 'Rules' = 20; + 'Defaults' = 21; + 'Tables' = 22; + 'StoredProcedures' = 23; + 'UserDefinedFunctions' = 24; + 'Views' = 25; + 'DatabaseAuditSpecifications' = 26; + 'SearchPropertyLists' = 27; + 'Sequences' = 28; + 'ServiceBroker' = 29; + 'SymmetricKeys' = 30; + 'Triggers' = 31; + 'Synonyms' = 32; + 'ExtendedStoredProcedures' = 33; + 'ExtendedProperties' = 34; +} +# first we access the server using the PSPath +$Srv = get-item "SQLSERVER:\SQL\$Server\$Instance" +#now we create all our lists of objects, using the SMO URNS to represent the object +$urnCollection = new-object "$SMO.UrnCollection" #the objects that need sorting. +$OrderedURNCollection = new-object "$SMO.UrnCollection" #list in the correct order +$PostTableurnCollection = new-object "$SMO.UrnCollection" #tail of the list +#we now determine the types we don't want to retrieve. This is complicated by a bug in SMO where the SMO doesnt check the version of the target server before asking for a type collection it doesn't know about. +$TypesWeDontWant = '(?im)Roles|Federations' +$pathsWritten=[array] @() +if ([int]$srv.version.Major -gt 10) { $TypesWeDontWant = '(?im)Roles' } +# first we access the database in order to get the object types. we get all except for the ones on our blacklist ' $TypesWeDontWant' +Set-location "SQLSERVER:\SQL\$Server\$Instance\databases\$Database" +Get-ChildItem | where-object{ "$($_.PSChildName))" -notmatch $TypesWeDontWant } | +<#and now we sort them in object-dependency order so that the list of objects to script is in the order in which one would want to script them #> +Select-Object ` +@{ E = { $ObjectTypeOrder."$_" }; N = "BuildOrder" }, +@{ E = { $_ }; N = "ObjectType" } | sort-object BuildOrder -PipelineVariable CurrentSQLObject | +# then we get all the objects of each type in turn if there are any! +foreach { if (test-Path "$($_.ObjectType.PSPath)") { Get-Childitem "$($_.ObjectType.PSPath)" } } | +#get subtypes if necessary (stuff like service broker objects) +foreach { + if ($_.GetType().BaseType -notlike '*smo*') { Get-Childitem "$($_.PSPath)" } + else { $_ } +} | +#and we check if the object is scriptable, +where { ($_.PSobject.Members.name -match "script") -and ($_.Name -notmatch '(?im)AutoCreatedLocal') } | +Foreach{ + $urn = $_.urn + if ($CurrentSQLObject.BuildOrder -lt 21) { $OrderedURNCollection.add($urn) } + elseif ($CurrentSQLObject.BuildOrder -lt 26) { $urnCollection.add($urn) } + else { $PostTableurnCollection.add($urn) } +} + <# discovering dependencies only works for a limited subset of objects; Views, Stored Procedures, Tables and User Defined Functions, #> + +#now we set up the scripter object just to do the dependency sorting +$scr = New-Object "$SMO.Scripter" +#now choose options for the scripter that we need to get dependency order +$options = New-Object "$SMO.ScriptingOptions" +$options.DriAll = $False +$options.AllowSystemObjects = $false +$options.WithDependencies = $False +$scr.Options = $options +$scr.Server = $srv + +#we create a dependency walker object +$DependencyWalker = new-object ("$SMO.DependencyWalker") +# +#now we set up an event listnenr go get progress reports +$ProgressReportEventHandler = [Microsoft.SqlServer.Management.Smo.ProgressReportEventHandler] { Write-Verbose "analysed '$($_.Current.GetAttribute('Name'))'" } +$scr.add_DiscoveryProgress($ProgressReportEventHandler) +#create the dependency tree +$dependencyTree = $scr.DiscoverDependencies($urnCollection, $DoWeLookForParentObjects) #look for the parent objects for each object +#and walk the dependencies to get the dependency tree. +$depCollection = $scr.WalkDependencies($dependencyTree); +#we just extract the root nodes and add them to the ordered list +$Depcollection | where { $_.IsRootNode -ne 0 } | foreach{ $OrderedURNCollection.Add($_.urn) } +#now we add the tail of the ordered list to the end +$PostTableURNCollection | foreach{ $OrderedURNCollection.Add($_) } + + +<#now set up the scripting options that you wish. This affects the code that we script out. you need to adjust this to taste. #> +$ScrOptions = new-object ("$SMO.ScriptingOptions") #create the 'options' object +$ScrOptions.ExtendedProperties = $true # yes we want these +$ScrOptions.IncludeIfNotExists = $false # only build if not already there +$ScrOptions.IncludeHeaders = $false # e.g. Object: Table xxx Script Date: xxx Date is picked up as a change */ +$ScrOptions.ToFileOnly = $true #do not echo as a string +$ScrOptions.DRIAll = $true # and all the constraints with the tables +$ScrOptions.AllowSystemObjects = $false # not these +$ScrOptions.Indexes = $true # Yup, these would be nice to include with the table +$ScrOptions.Triggers = $true # This should be included when scripting a table +$ScrOptions.ScriptBatchTerminator = $true # this only goes to the file +$ScrOptions.Encoding = [System.Text.Encoding]::UTF8 # otherwise git can't understand it + +# we now create the script directory if it doesn't already exist +if (!(Test-Path -path $DatabaseScriptPath)) +{ + Try { New-Item $DatabaseScriptPath -type directory | out-null } + Catch [system.exception]{ + Write-Error "error while creating the '$DatabaseScriptPath' dirctory" + return + } +} +<# we now create the start of our SQLCMD script (think of it as a type of manifest file) to execute all these scripts in the right order #> +$SQLCMDBuildScript=@" +/** +summary: > + This is a SQLCMD file that can be executed in SSMS if you are in SQLCMD mode, or you + can use the SQLCMD command-line utility +Author: Phil Factor +Revision: 1.5 +date: $(get-date) +example: sqlcmd -S $server\$instance -d $($Database)Copy -i $($DatabaseScriptPath)\DatabaseBuildScript.SQL -o $($DatabaseScriptPath)\output.txt + +**/ + +SET NOCOUNT ON +GO +PRINT 'Creating the database objects in order' + + +"@ +#for each object in our ordered list of objects represented by URNs +$OrderedURNCollection | Foreach{ + # work out the full file path where we want to save each file + $fullPath = "$DatabaseScriptPath\$($_.Type)" + $filename = "$(if ($_.GetAttribute('Schema') -ne $null) + { $($_.GetAttribute('Schema') -replace '[\n\r\\\/\:\.]', '-') + '.' } + else { '' })$($_.GetAttribute('Name') -replace '[\n\r\\\/\:\.]', '-')_Build.sql" + # create the file path if it doesn't exist + if (!(Test-Path -path "$fullPath")) + { + Try { New-Item "$fullPath" -type directory | out-null } + Catch [system.exception]{ + Write-Error "error while creating the "$fullPath" directory" + return + } + } + $ScrOptions.Filename = "$($fullpath)\$($filename)"; #tell the scripter object where to write the file + $srv.GetSmoObject($_).script($ScrOptions); #and script the object +$SQLCMDBuildScript+=@" + + PRINT 'creating the $($_.Type) $($_.GetAttribute('Name'))' + go + :r $($fullpath)\$($filename) + :On Error exit +"@ #and write the lines into the contents of the Manifest file + $PathsWritten+="$($fullpath)\$($filename)" + +} +$SQLCMDBuildScript+=@" + +PRINT 'Database creation is now complete' +GO +"@ #now finish off the file. By using the .NET class we write in UTF8 + +[System.IO.File]::WriteAllLines("$DatabaseScriptPath\DatabaseBuildScript.SQL", $SQLCMDBuildScript) +<# now we need to delete the files that don't represent current objects in the database so that all +dropped objects are dropped in source control #> +$PathsWritten+="$DatabaseScriptPath\DatabaseBuildScript.SQL" #to avoid getting this deleted +<# now delete anything else #> +$DeletedCount=0 +Get-ChildItem -path $DatabaseScriptPath -include '*.sql' -recurse | + where {$Pathswritten -notcontains $_.fullname} | Remove-Item |foreach{$DeletedCount+=1} +if ($DeletedCount -gt 0) {Write-Verbose "deleted $DeletedCount file((if $DeletedCount -gt 1){'s'} else {''})"} +"Did I do well?" diff --git a/PowerShell/CsvSqlimport.ps1 b/PowerShell/CsvSqlimport.ps1 index 854b53eb..96ef4370 100644 --- a/PowerShell/CsvSqlimport.ps1 +++ b/PowerShell/CsvSqlimport.ps1 @@ -1,1272 +1,1272 @@ -Function Import-CsvToSql { -<# -.SYNOPSIS -Efficiently imports very large (and small) CSV files into SQL Server using only the .NET Framework and PowerShell. - -.DESCRIPTION -Import-CsvToSql takes advantage of .NET's super fast SqlBulkCopy class to import CSV files into SQL Server at up to 90,000 -rows a second. - -The entire import is contained within a transaction, so if a failure occurs or the script is aborted, no changes will persist. - -If the table specified does not exist, it will be automatically created using best guessed data types. In addition, -the destination table can be truncated prior to import. - -The Query parameter be used to import only data returned from a SQL Query executed against the CSV file(s). This function -supports a number of bulk copy options. Please see parameter list for details. - -THIS CODE IS PROVIDED "AS IS", WITH NO WARRANTIES. - -.PARAMETER CSV -Required. The location of the CSV file(s) to be imported. Multiple files are allowed, so long as they are formatted -similarly. If no CSV file is specified, a Dialog box will appear. - -.PARAMETER FirstRowColumns -Optional. This parameter specifies whether the first row contains column names. If the first row does not contain column -names and -Query is specified, use field names "column1, column2, column3" and so on. - -.PARAMETER Delimiter -Optional. If you do not pass a Delimiter, then a comma will be used. Valid Delimiters include: tab "`t", pipe "|", -semicolon ";", and space " ". - -.PARAMETER SqlServer -Required. The destination SQL Server. - -.PARAMETER SqlCredential -Connect to SQL Server using specified SQL Login credentials. - -.PARAMETER Database -Required. The name of the database where the CSV will be imported into. This parameter is autopopulated using the --SqlServer and -SqlCredential (optional) parameters. - -.PARAMETER Table -SQL table or view where CSV will be imported into. - -If a table name is not specified, the table name will be automatically determined from filename, and a prompt will appear -to confirm table name. - -If table does not currently exist, it will created. SQL datatypes are determined from the first row of the CSV that -contains data (skips first row if -FirstRowColumns). Datatypes used are: bigint, numeric, datetime and varchar(MAX). - -If the automatically generated table datatypes do not work for you, please create the table prior to import. - -.PARAMETER Truncate -Truncate table prior to import. - -.PARAMETER Safe -Optional. By default, Import-CsvToSql uses StreamReader for imports. StreamReader is super fast, but may not properly parse some files. -Safe uses OleDb to import the records, it's slower, but more predictable when it comes to parsing CSV files. A schema.ini is automatically -generated for best results. If schema.ini currently exists in the directory, it will be moved to a temporary location, then moved back. - -OleDB also enables the script to use the -Query parameter, which enables you to import specific subsets of data within a CSV file. OleDB -imports at up to 21,000 rows/sec. - -.PARAMETER Turbo -Optional. Cannot be used in conjunction with -Query. - -Remember the Turbo button? This one actually works. Turbo is mega fast, but may not handle some datatypes as well as other methods. -If your CSV file is rather vanilla and doesn't have a ton of NULLs, Turbo may work well for you. Note: Turbo mode uses a Table Lock. - -StreamReader/Turbo imports at up to 90,000 rows/sec (well, 93,000 locally for a 19 column file so, really, the number may be over -100,000 rows/sec for tables with only a couple columns using optimized datatypes). - -.PARAMETER First -Only import first X rows. Count starts at the top of the file, but skips the first row if FirstRowColumns was specifeid. - -Use -Query if you need advanced First (TOP) functionality. - -.PARAMETER Query -Optional. Cannot be used in conjunction with -Turbo or -First. When Query is specified, the slower import method, OleDb, -will be used. - -If you want to import just the results of a specific query from your CSV file, use this parameter. -To make command line queries easy, this module will convert the word "csv" to the actual CSV formatted table name. -If the FirstRowColumns switch is not used, the query should use column1, column2, column3, etc - -Example: select column1, column2, column3 from csv where column2 > 5 -Example: select distinct artist from csv -Example: select top 100 artist, album from csv where category = 'Folk' - -See EXAMPLES for more example syntax. - -.PARAMETER TableLock -SqlBulkCopy option. Per Microsoft "Obtain a bulk update lock for the duration of the bulk copy operation. When not -specified, row locks are used." TableLock is automatically used when Turbo is specified. - -.PARAMETER CheckConstraints -SqlBulkCopy option. Per Microsoft "Check constraints while data is being inserted. By default, constraints are not checked." - -.PARAMETER FireTriggers -SqlBulkCopy option. Per Microsoft "When specified, cause the server to fire the insert triggers for the rows being inserted -into the database." - -.PARAMETER KeepIdentity -SqlBulkCopy option. Per Microsoft "Preserve source identity values. When not specified, identity values are assigned by -the destination." - -.PARAMETER KeepNulls -SqlBulkCopy option. Per Microsoft "Preserve null values in the destination table regardless of the settings for default -values. When not specified, null values are replaced by default values where applicable." - -.PARAMETER shellswitch -Internal parameter. - -.PARAMETER SqlCredentialPath -Internal parameter. - -.NOTES -Author: Chrissy LeMaire (@cl), netnerds.net - -.LINK -https://blog.netnerds.net/2015/09/import-csvtosql-super-fast-csv-to-sql-server-import-powershell-module/ - -.EXAMPLE -Import-CsvToSql -Csv C:\temp\housing.csv -SqlServer sql001 -Database markets - -Imports the entire *comma delimited* housing.csv to the SQL "markets" database on a SQL Server named sql001. -Since a table name was not specified, the table name is automatically determined from filename as "housing" -and a prompt will appear to confirm table name. - -The first row is not skipped, as it does not contain column names. - -.EXAMPLE -Import-CsvToSql -Csv .\housing.csv -SqlServer sql001 -Database markets -Table housing -First 100000 -Safe -Delimiter "`t" -FirstRowColumns - -Imports the first 100,000 rows of the tab delimited housing.csv file to the "housing" table in the "markets" database on a SQL Server -named sql001. Since Safe was specified, the OleDB method will be used for the bulk import. It's assumed Safe was used because -the first attempt without -Safe resulted in an import error. The first row is skipped, as it contains column names. - -.EXAMPLE -Import-CsvToSql -csv C:\temp\huge.txt -sqlserver sqlcluster -Database locations -Table latitudes -Delimiter "|" -Turbo - -Imports all records from the pipe delimited huge.txt file using the fastest method possible into the latitudes table within the -locations database. Obtains a table lock for the duration of the bulk copy operation. This specific command has been used -to import over 10.5 million rows in 2 minutes. - -.EXAMPLE -Import-CsvToSql -Csv C:\temp\housing.csv, .\housing2.csv -SqlServer sql001 -Database markets -Table ` -housing -Delimiter "`t" -query "select top 100000 column1, column3 from csv" -Truncate - -Truncates the "housing" table, then imports columns 1 and 3 of the first 100000 rows of the tab-delimited -housing.csv in the C:\temp directory, and housing2.csv in the current directory. Since the query is executed against -both files, a total of 200,000 rows will be imported. - -.EXAMPLE -Import-CsvToSql -Csv C:\temp\housing.csv -SqlServer sql001 -Database markets -Table housing -query ` -"select address, zip from csv where state = 'Louisiana'" -FirstRowColumns -Truncate -FireTriggers - -Uses the first line to determine CSV column names. Truncates the "housing" table on the SQL Server, -then imports the address and zip columns from all records in the housing.csv where the state equals Louisiana. - -Triggers are fired for all rows. Note that this does slightly slow down the import. - -.NOTES - Author: Chrissy LeMaire - Original Link: https://github.com/ctrlbold/dbatools/blob/master/Functions/CsvSqlimport.ps1 - Created Date: 2015-09-01 - -#> -[CmdletBinding(DefaultParameterSetName="Default")] -Param( - [string[]]$Csv, - [Parameter(Mandatory=$true)] - [string]$SqlServer, - [object]$SqlCredential, - [string]$Table, - [switch]$Truncate, - [string]$Delimiter = ",", - [switch]$FirstRowColumns, - [parameter(ParameterSetName="reader")] - [switch]$Turbo, - [parameter(ParameterSetName="ole")] - [switch]$Safe, - [int]$First = 0, - [parameter(ParameterSetName="ole")] - [string]$Query = "select * from csv", - [int]$BatchSize = 50000, - [int]$NotifyAfter, - [switch]$TableLock, - [switch]$CheckConstraints, - [switch]$FireTriggers, - [switch]$KeepIdentity, - [switch]$KeepNulls, - [switch]$shellswitch, - [string]$SqlCredentialPath - ) - -DynamicParam { - - if ($sqlserver.length -gt 0) { - # Auto populate database list from specified sqlserver - $paramconn = New-Object System.Data.SqlClient.SqlConnection - - if ($SqlCredentialPath.length -gt 0) { - $SqlCredential = Import-CliXml $SqlCredentialPath - } - - if ($SqlCredential.count -eq 0 -or $SqlCredential -eq $null) { - $paramconn.ConnectionString = "Data Source=$sqlserver;Integrated Security=True;" - } else { - $paramconn.ConnectionString = "Data Source=$sqlserver;User Id=$($SqlCredential.UserName); Password=$($SqlCredential.GetNetworkCredential().Password);" - } - - try { - $paramconn.Open() - $sql = "select name from master.dbo.sysdatabases" - $paramcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $paramconn, $null) - $paramdt = New-Object System.Data.DataTable - $paramdt.Load($paramcmd.ExecuteReader()) - $databaselist = $paramdt.rows.name - $null = $paramcmd.Dispose() - $null = $paramconn.Close() - $null = $paramconn.Dispose() - } catch { - # But if the routine fails, at least let them specify a database manually - $databaselist = "" - } - - # Reusable parameter setup - $newparams = New-Object System.Management.Automation.RuntimeDefinedParameterDictionary - $attributes = New-Object System.Management.Automation.ParameterAttribute - $attributes.Mandatory = $false - - # Database list parameter setup - $dbattributes = New-Object -Type System.Collections.ObjectModel.Collection[System.Attribute] - $dbattributes.Add($attributes) - # If a list of databases were returned, populate the parameter set - if ($databaselist.length -gt 0) { - $dbvalidationset = New-Object System.Management.Automation.ValidateSetAttribute -ArgumentList $databaselist - $dbattributes.Add($dbvalidationset) - } - - $Database = New-Object -Type System.Management.Automation.RuntimeDefinedParameter("Database", [String], $dbattributes) - $newparams.Add("Database", $Database) - return $newparams - } -} - -Begin { - Function Parse-OleQuery { - <# - .SYNOPSIS - Tests to ensure query is valid. This will be used for the GUI. - - .EXAMPLE - Parse-OleQuery -Csv sqlservera -Query $query -FirstRowColumns $FirstRowColumns -delimiter $delimiter - - .OUTPUT - - - #> - param( - [string]$Provider, - [Parameter(Mandatory=$true)] - [string[]]$csv, - [Parameter(Mandatory=$true)] - [string]$Query, - [Parameter(Mandatory=$true)] - [bool]$FirstRowColumns, - [Parameter(Mandatory=$true)] - [string]$delimiter - - ) - - if ($query.ToLower() -notmatch "\bcsv\b") { - return "SQL statement must contain the word 'csv'." - } - - try { - $datasource = Split-Path $csv[0] - $tablename = (Split-Path $csv[0] -leaf).Replace(".","#") - switch ($FirstRowColumns) { - $true { $FirstRowColumns = "Yes" } - $false { $FirstRowColumns = "No" } - } - if ($provider -ne $null) { - $connstring = "Provider=$provider;Data Source=$datasource;Extended Properties='text';" - } else { - $connstring = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=$datasource;Extended Properties='text';" - } - - $conn = New-Object System.Data.OleDb.OleDbconnection $connstring - $conn.Open() - $sql = $Query -replace "\bcsv\b"," [$tablename]" - $cmd = New-Object System.Data.OleDB.OleDBCommand - $cmd.Connection = $conn - $cmd.CommandText = $sql - $null = $cmd.ExecuteReader() - $cmd.Dispose() - $conn.Dispose() - return $true - } catch { return $false } - } - - Function Test-SqlConnection { - <# - .SYNOPSIS - Uses System.Data.SqlClient to gather list of user databases. - - .EXAMPLE - $SqlCredential = Get-Credential - Get-SqlDatabases -SqlServer sqlservera -SqlCredential $SqlCredential - - .OUTPUT - Array of user databases - - #> - param( - [Parameter(Mandatory=$true)] - [string]$SqlServer, - [object]$SqlCredential - ) - $testconn = New-Object System.Data.SqlClient.SqlConnection - if ($SqlCredential.count -eq 0) { - $testconn.ConnectionString = "Data Source=$sqlserver;Integrated Security=True;Connection Timeout=3" - } else { - $testconn.ConnectionString = "Data Source=$sqlserver;User Id=$($SqlCredential.UserName); Password=$($SqlCredential.GetNetworkCredential().Password);Connection Timeout=3" - } - try { - $testconn.Open() - $testconn.Close() - $testconn.Dispose() - return $true - } catch { - $message = $_.Exception.Message.ToString() - Write-Verbose $message - if ($message -match "A network") { $message = "Can't connect to $sqlserver." } - elseif ($message -match "Login failed for user") { $message = "Login failed for $username." } - return $message - } - } - - Function Get-SqlDatabases { - <# - .SYNOPSIS - Uses System.Data.SqlClient to gather list of user databases. - - .EXAMPLE - $SqlCredential = Get-Credential - Get-SqlDatabases -SqlServer sqlservera -SqlCredential $SqlCredential - - .OUTPUT - Array of user databases - - #> - param( - [Parameter(Mandatory=$true)] - [string]$SqlServer, - [object]$SqlCredential - ) - $paramconn = New-Object System.Data.SqlClient.SqlConnection - if ($SqlCredential.count -eq 0) { - $paramconn.ConnectionString = "Data Source=$sqlserver;Integrated Security=True;Connection Timeout=3" - } else { - $paramconn.ConnectionString = "Data Source=$sqlserver;User Id=$($SqlCredential.UserName); Password=$($SqlCredential.GetNetworkCredential().Password);Connection Timeout=3" - } - try { - $paramconn.Open() - $sql = "select name from master.dbo.sysdatabases where dbid > 4 order by name" - $paramcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $paramconn, $null) - $datatable = New-Object System.Data.DataTable - [void]$datatable.Load($paramcmd.ExecuteReader()) - $databaselist = $datatable.rows.name - $null = $paramcmd.Dispose() - $null = $paramconn.Close() - $null = $paramconn.Dispose() - return $databaselist - } catch { throw "Cannot access $sqlserver" } - } - - Function Get-SqlTables { - <# - .SYNOPSIS - Uses System.Data.SqlClient to gather list of user databases. - - .EXAMPLE - $SqlCredential = Get-Credential - Get-SqlTables -SqlServer sqlservera -Database mydb -SqlCredential $SqlCredential - - .OUTPUT - Array of tables - - #> - param( - [Parameter(Mandatory=$true)] - [string]$SqlServer, - [string]$Database, - [object]$SqlCredential - ) - $tableconn = New-Object System.Data.SqlClient.SqlConnection - if ($SqlCredential.count -eq 0) { - $tableconn.ConnectionString = "Data Source=$sqlserver;Integrated Security=True;Connection Timeout=3" - } else { - $username = ($SqlCredential.UserName).TrimStart("\") - $tableconn.ConnectionString = "Data Source=$sqlserver;User Id=$username; Password=$($SqlCredential.GetNetworkCredential().Password);Connection Timeout=3" - } - try { - $tableconn.Open() - $sql = "select name from $database.sys.tables order by name" - $tablecmd = New-Object System.Data.SqlClient.SqlCommand($sql, $tableconn, $null) - $datatable = New-Object System.Data.DataTable - [void]$datatable.Load($tablecmd.ExecuteReader()) - $tablelist = $datatable.rows.name - $null = $tablecmd.Dispose() - $null = $tableconn.Close() - $null = $tableconn.Dispose() - return $tablelist - } catch { return } - } - - Function Get-Columns { - <# - .SYNOPSIS - TextFieldParser will be used instead of an OleDbConnection. - This is because the OleDbConnection driver may not exist on x64. - - .EXAMPLE - $columns = Get-Columns -Csv .\myfile.csv -Delimiter "," -FirstRowColumns $true - - .OUTPUT - Array of column names - - #> - - param( - [Parameter(Mandatory=$true)] - [string[]]$Csv, - [Parameter(Mandatory=$true)] - [string]$Delimiter, - [Parameter(Mandatory=$true)] - [bool]$FirstRowColumns - ) - - $columnparser = New-Object Microsoft.VisualBasic.FileIO.TextFieldParser($csv[0]) - $columnparser.TextFieldType = "Delimited" - $columnparser.SetDelimiters($Delimiter) - $rawcolumns = $columnparser.ReadFields() - - if ($FirstRowColumns -eq $true) { - $columns = ($rawcolumns | ForEach-Object { $_ -Replace '"' } | Select-Object -Property @{Name="name"; Expression = {"[$_]"}}).name - } else { - $columns = @() - foreach ($number in 1..$rawcolumns.count ) { $columns += "[column$number]" } - } - - $columnparser.Close() - $columnparser.Dispose() - return $columns - } - - Function Get-ColumnText { - <# - .SYNOPSIS - Returns an array of data, which can later be parsed for potential datatypes. - - .EXAMPLE - $columns = Get-Columns -Csv .\myfile.csv -Delimiter "," - - .OUTPUT - Array of column data - - #> - param( - [Parameter(Mandatory=$true)] - [string[]]$Csv, - [Parameter(Mandatory=$true)] - [string]$Delimiter - ) - $columnparser = New-Object Microsoft.VisualBasic.FileIO.TextFieldParser($csv[0]) - $columnparser.TextFieldType = "Delimited" - $columnparser.SetDelimiters($Delimiter) - $line = $columnparser.ReadLine() - # Skip a line, in case first line are column names - $line = $columnparser.ReadLine() - $datatext = $columnparser.ReadFields() - $columnparser.Close() - $columnparser.Dispose() - return $datatext - } - - Function Write-Schemaini { - <# - .SYNOPSIS - Unfortunately, passing delimiter within the OleDBConnection connection string is unreliable, so we'll use schema.ini instead - The default delimiter in Windows changes depending on country, so we'll do this for every delimiter, even commas. - - Get OLE datatypes based on best guess of column data within the -Columns parameter. - - Sometimes SQL will accept a datetime that OLE won't, so Text will be used for datetime. - - .EXAMPLE - $columns = Get-Columns -Csv C:\temp\myfile.csv -Delimiter "," - $movedschemainis = Write-Schemaini -Csv C:\temp\myfile.csv -Columns $columns -ColumnText $columntext -Delimiter "," -FirstRowColumns $true - - .OUTPUT - Creates new schema files, that look something like this: - [housingdata.csv] - Format=Delimited(,) - ColNameHeader=True - Col1="House ID" Long - Col2="Description" Memo - Col3="Price" Double - - Returns an array of existing schema files that have been moved, if any. - - #> - param( - [Parameter(Mandatory=$true)] - [string[]]$Csv, - [Parameter(Mandatory=$true)] - [string[]]$Columns, - [string[]]$ColumnText, - [Parameter(Mandatory=$true)] - [string]$Delimiter, - [Parameter(Mandatory=$true)] - [bool]$FirstRowColumns - ) - - $movedschemainis = @{} - foreach ($file in $csv) { - $directory = Split-Path $file - $schemaexists = Test-Path "$directory\schema.ini" - if ($schemaexists -eq $true) { - $newschemaname = "$env:TEMP\$(Split-Path $file -leaf)-schema.ini" - $movedschemainis.Add($newschemaname,"$directory\schema.ini") - Move-Item "$directory\schema.ini" $newschemaname -Force - } - - $filename = Split-Path $file -leaf; $directory = Split-Path $file - Add-Content -Path "$directory\schema.ini" -Value "[$filename]" - Add-Content -Path "$directory\schema.ini" -Value "Format=Delimited($Delimiter)" - Add-Content -Path "$directory\schema.ini" -Value "ColNameHeader=$FirstRowColumns" - - $index = 0 - $olecolumns = ($columns | ForEach-Object { $_ -Replace "\[|\]", '"' }) - - foreach ($datatype in $columntext) { - $olecolumnname = $olecolumns[$index] - $index++ - - try { [System.Guid]::Parse($datatype) | Out-Null; $isguid = $true } catch { $isguid = $false } - - if ($isguid -eq $true) { $oledatatype = "Text" } - elseif ([int64]::TryParse($datatype,[ref]0) -eq $true) { $oledatatype = "Long" } - elseif ([double]::TryParse($datatype,[ref]0) -eq $true) { $oledatatype = "Double" } - elseif ([datetime]::TryParse($datatype,[ref]0) -eq $true) { $oledatatype = "Text" } - else { $oledatatype = "Memo" } - - Add-Content -Path "$directory\schema.ini" -Value "Col$($index)`=$olecolumnname $oledatatype" - } - } - return $movedschemainis - } - - Function New-SqlTable { - <# - .SYNOPSIS - Creates new Table using existing SqlCommand. - - SQL datatypes based on best guess of column data within the -ColumnText parameter. - Columns paramter determine column names. - - .EXAMPLE - New-SqlTable -Csv $Csv -Delimiter $Delimiter -Columns $columns -ColumnText $columntext -SqlConn $sqlconn -Transaction $transaction - - .OUTPUT - Creates new table - #> - - param( - [Parameter(Mandatory=$true)] - [string[]]$Csv, - [Parameter(Mandatory=$true)] - [string]$Delimiter, - [string[]]$Columns, - [string[]]$ColumnText, - [System.Data.SqlClient.SqlConnection]$sqlconn, - [System.Data.SqlClient.SqlTransaction]$transaction - ) - # Get SQL datatypes by best guess on first data row - $sqldatatypes = @(); $index = 0 - - foreach ($column in $columntext) { - $sqlcolumnname = $Columns[$index] - $index++ - - # bigint, float, and datetime are more accurate, but it didn't work - # as often as it should have, so we'll just go for a smaller datatype - if ([int64]::TryParse($column,[ref]0) -eq $true) { $sqldatatype = "varchar(255)" } - elseif ([double]::TryParse($column,[ref]0) -eq $true) { $sqldatatype = "varchar(255)" } - elseif ([datetime]::TryParse($column,[ref]0) -eq $true) { $sqldatatype = "varchar(255)" } - else { $sqldatatype = "varchar(MAX)" } - - $sqldatatypes += "$sqlcolumnname $sqldatatype" - } - - $sql = "BEGIN CREATE TABLE [$table] ($($sqldatatypes -join ' NULL,')) END" - $sqlcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlconn, $transaction) - try { $null = $sqlcmd.ExecuteNonQuery()} catch { - $errormessage = $_.Exception.Message.ToString() - throw "Failed to execute $sql. `nDid you specify the proper delimiter? `n$errormessage" - } - - Write-Output "[*] Successfully created table $table with the following column definitions:`n $($sqldatatypes -join "`n ")" - # Write-Warning "All columns are created using a best guess, and use their maximum datatype." - Write-Warning "This is inefficient but allows the script to import without issues." - Write-Warning "Consider creating the table first using best practices if the data will be used in production." -} - - - if ($shellswitch -eq $false) { Write-Output "[*] Started at $(Get-Date)" } - - # Load the basics - [void][Reflection.Assembly]::LoadWithPartialName("System.Data") - [void][Reflection.Assembly]::LoadWithPartialName("Microsoft.VisualBasic") - [void][Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms") - - # Getting the total rows copied is a challenge. Use SqlBulkCopyExtension. - # http://stackoverflow.com/questions/1188384/sqlbulkcopy-row-count-when-complete - - $source = 'namespace System.Data.SqlClient - { - using Reflection; - - public static class SqlBulkCopyExtension - { - const String _rowsCopiedFieldName = "_rowsCopied"; - static FieldInfo _rowsCopiedField = null; - - public static int RowsCopiedCount(this SqlBulkCopy bulkCopy) - { - if (_rowsCopiedField == null) _rowsCopiedField = typeof(SqlBulkCopy).GetField(_rowsCopiedFieldName, BindingFlags.NonPublic | BindingFlags.GetField | BindingFlags.Instance); - return (int)_rowsCopiedField.GetValue(bulkCopy); - } - } - } - ' - Add-Type -ReferencedAssemblies 'System.Data.dll' -TypeDefinition $source -ErrorAction SilentlyContinue -} - -Process { - # Supafast turbo mode requires a table lock, or it's just regular fast - if ($turbo -eq $true) { $tablelock = $true } - - # The query parameter requires OleDB which is invoked by the "safe" variable - # Actually, a select could be performed on the datatable used in StreamReader, too. - # Maybe that will be done later. - if ($query -ne "select * from csv") { $safe = $true } - - if ($first -gt 0 -and $query -ne "select * from csv") { - throw "Cannot use both -Query and -First. If a query is necessary, use TOP $first within your SQL statement." - } - - # In order to support -First in both Streamreader, and OleDb imports, the query must be modified slightly. - if ($first -gt 0) { $query = "select top $first * from csv" } - - # If shell switch occured, and encrypted SQL credentials were written to disk, create $SqlCredential - if ($SqlCredentialPath.length -gt 0) { - $SqlCredential = Import-CliXml $SqlCredentialPath - } - - # Get Database string from RuntimeDefinedParameter if required - if ($database -isnot [string]) { $database = $PSBoundParameters.Database } - if ($database.length -eq 0) { throw "You must specify a database." } - - # Check to ensure a Windows account wasn't used as a SQL Credential - if ($SqlCredential.count -gt 0 -and $SqlCredential.UserName -like "*\*") { throw "Only SQL Logins can be used as a SqlCredential." } - - # If no CSV was specified, prompt the user to select one. - if ($csv.length -eq 0) { - $fd = New-Object System.Windows.Forms.OpenFileDialog - $fd.InitialDirectory = [environment]::GetFolderPath("MyDocuments") - $fd.Filter = "CSV Files (*.csv;*.tsv;*.txt)|*.csv;*.tsv;*.txt" - $fd.Title = "Select one or more CSV files" - $fd.MultiSelect = $true - $null = $fd.showdialog() - $csv = $fd.filenames - if ($csv.length -eq 0) { throw "No CSV file selected." } - } else { - foreach ($file in $csv) { - $exists = Test-Path $file - if ($exists -eq $false) { throw "$file does not exist" } - } - } - - # Resolve the full path of each CSV - $resolvedcsv = @() - foreach ($file in $csv) { $resolvedcsv += (Resolve-Path $file).Path } - $csv = $resolvedcsv - - # UniqueIdentifier kills OLE DB / SqlBulkCopy imports. Check to see if destination table contains this datatype. - if ($safe -eq $true) { - $sqlcheckconn = New-Object System.Data.SqlClient.SqlConnection - if ($SqlCredential.count -eq 0 -or $SqlCredential -eq $null) { - $sqlcheckconn.ConnectionString = "Data Source=$sqlserver;Integrated Security=True;Connection Timeout=3; Initial Catalog=master" - } else { - $username = ($SqlCredential.UserName).TrimStart("\") - $sqlcheckconn.ConnectionString = "Data Source=$sqlserver;User Id=$username; Password=$($SqlCredential.GetNetworkCredential().Password);Connection Timeout=3; Initial Catalog=master" - } - - try { $sqlcheckconn.Open() } catch { throw $_.Exception } - - # Ensure database exists - $sql = "select count(*) from master.dbo.sysdatabases where name = '$database'" - $sqlcheckcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlcheckconn) - $dbexists = $sqlcheckcmd.ExecuteScalar() - if ($dbexists -eq $false) { throw "Database does not exist on $sqlserver" } - - # Change database after the fact, because if db doesn't exist, the login would fail. - $sqlcheckconn.ChangeDatabase($database) - - $sql = "SELECT t.name as datatype FROM sys.columns c - JOIN sys.types t ON t.system_type_id = c.system_type_id - WHERE c.object_id = object_id('$table') and t.name != 'sysname'" - $sqlcheckcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlcheckconn) - $sqlcolumns = New-Object System.Data.DataTable - $sqlcolumns.load($sqlcheckcmd.ExecuteReader("CloseConnection")) - $sqlcheckconn.Dispose() - if ($sqlcolumns.datatype -contains "UniqueIdentifier") { - throw "UniqueIdentifier not supported by OleDB/SqlBulkCopy. Query and Safe cannot be supported." - } - } - - if ($safe -eq $true) { - # Check for drivers. First, ACE (Access) if file is smaller than 2GB, then JET - # ACE doesn't handle files larger than 2gb. What gives? - foreach ($file in $csv) { - $filesize = (Get-ChildItem $file).Length / 1GB - if ($filesize -gt 1.99) { $jetonly = $true } - } - - if ($jetonly -ne $true) { $provider = (New-Object System.Data.OleDb.OleDbEnumerator).GetElements() | Where-Object { $_.SOURCES_NAME -like "Microsoft.ACE.OLEDB.*" } } - - if ($provider -eq $null) { - $provider = (New-Object System.Data.OleDb.OleDbEnumerator).GetElements() | Where-Object { $_.SOURCES_NAME -like "Microsoft.Jet.OLEDB.*" } - } - - # If a suitable provider cannot be found (If x64 and Access hasn't been installed) - # switch to x86, because it natively supports JET - if ($provider -ne $null) { - if ($provider -is [system.array]) { $provider = $provider[$provider.GetUpperBound(0)].SOURCES_NAME } else { $provider = $provider.SOURCES_NAME } - } - - # If a provider doesn't exist, it is necessary to switch to x86 which natively supports JET. - if ($provider -eq $null) { - # While Install-Module takes care of installing modules to x86 and x64, Import-Module doesn't. - # Because of this, the Module must be exported, written to file, and imported in the x86 shell. - $definition = (Get-Command Import-CsvToSql).Definition - $function = "Function Import-CsvToSql { $definition }" - Set-Content "$env:TEMP\Import-CsvToSql.psm1" $function - - # Encode the SQL string, since some characters may mess up after being passed a second time. - $bytes = [System.Text.Encoding]::UTF8.GetBytes($query) - $query = [System.Convert]::ToBase64String($bytes) - - # Put switches back into proper format - $switches = @() - $options = "TableLock","CheckConstraints","FireTriggers","KeepIdentity","KeepNulls","Default","Truncate","FirstRowColumns","Safe" - foreach ($option in $options) { - $optionValue = Get-Variable $option -ValueOnly -ErrorAction SilentlyContinue - if ($optionValue -eq $true) { $switches += "-$option" } - } - - # Perform the actual switch, which removes any registered Import-CsvToSql modules - # Then imports, and finally re-executes the command. - $csv = $csv -join ","; $switches = $switches -join " " - if ($SqlCredential.count -gt 0) { - $SqlCredentialPath = "$env:TEMP\sqlcredential.xml" - Export-CliXml -InputObject $SqlCredential $SqlCredentialPath - } - $command = "Import-CsvToSql -Csv $csv -SqlServer '$sqlserver'-Database '$database' -Table '$table' -Delimiter '$Delimiter' -First $First -Query '$query' -Batchsize $BatchSize -NotifyAfter $NotifyAfter $switches -shellswitch" - - if ($SqlCredentialPath.length -gt 0) { $command += " -SqlCredentialPath $SqlCredentialPath"} - Write-Verbose "Switching to x86 shell, then switching back." - &"$env:windir\syswow64\windowspowershell\v1.0\powershell.exe" "$command" - return - } - } - - # Do the first few lines contain the specified delimiter? - foreach ($file in $csv) { - try { $firstfewlines = Get-Content $file -First 3 -ErrorAction Stop } catch { throw "$file is in use." } - foreach ($line in $firstfewlines) { - if (($line -match $delimiter) -eq $false) { throw "Delimiter $delimiter not found in first row of $file." } - } - } - - # If more than one csv specified, check to ensure number of columns match - if ($csv -is [system.array]){ - $numberofcolumns = ((Get-Content $csv[0] -First 1 -ErrorAction Stop) -Split $delimiter).Count - - foreach ($file in $csv) { - $firstline = Get-Content $file -First 1 -ErrorAction Stop - $newnumcolumns = ($firstline -Split $Delimiter).Count - if ($newnumcolumns -ne $numberofcolumns) { throw "Multiple csv file mismatch. Do both use the same delimiter and have the same number of columns?" } - } - } - - # Automatically generate Table name if not specified, then prompt user to confirm - if ($table.length -eq 0) { - $table = [IO.Path]::GetFileNameWithoutExtension($csv[0]) - $title = "Table name not specified." - $message = "Would you like to use the automatically generated name: $table" - $yes = New-Object System.Management.Automation.Host.ChoiceDescription "&Yes", "Uses table name $table for import." - $no = New-Object System.Management.Automation.Host.ChoiceDescription "&No", "Allows you to specify an alternative table name." - $options = [System.Management.Automation.Host.ChoiceDescription[]]($yes, $no) - $result = $host.ui.PromptForChoice($title, $message, $options, 0) - if ($result -eq 1) { - do {$table = Read-Host "Please enter a table name"} while ($table.Length -eq 0) - } - } - - # If the shell has switched, decode the $query string. - if ($shellswitch -eq $true) { - $bytes = [System.Convert]::FromBase64String($Query) - $query = [System.Text.Encoding]::UTF8.GetString($bytes) - $csv = $csv -Split "," - } - - # Create columns based on first data row of first csv. - Write-Output "[*] Calculating column names and datatypes" - $columns = Get-Columns -Csv $Csv -Delimiter $Delimiter -FirstRowColumns $FirstRowColumns - if ($columns.count -gt 255 -and $safe -eq $true) { - throw "CSV must contain fewer than 256 columns." - } - - $columntext = Get-ColumnText -Csv $Csv -Delimiter $Delimiter - - # OLEDB method requires extra checks - if ($safe -eq $true) { - # Advanced SQL queries may not work (SqlBulkCopy likes a 1 to 1 mapping), so warn the user. - if ($Query -match "GROUP BY" -or $Query -match "COUNT") { Write-Warning "Script doesn't really support the specified query. This probably won't work, but will be attempted anyway." } - - # Check for proper SQL syntax, which for the purposes of this module must include the word "table" - if ($query.ToLower() -notmatch "\bcsv\b") { - throw "SQL statement must contain the word 'csv'. Please see this module's documentation for more details." - } - - # In order to ensure consistent results, a schema.ini file must be created. - # If a schema.ini already exists, it will be moved to TEMP temporarily. - Write-Verbose "Creating schema.ini" - $movedschemainis = Write-Schemaini -Csv $Csv -Columns $columns -Delimiter "$Delimiter" -FirstRowColumns $FirstRowColumns -ColumnText $columntext - } - - # Display SQL Server Login info - if ($sqlcredential.count -gt 0) { $username = "SQL login $($SqlCredential.UserName)" } - else { $username = "Windows login $(whoami)" } - # Open Connection to SQL Server - Write-Output "[*] Logging into $sqlserver as $username" - $sqlconn = New-Object System.Data.SqlClient.SqlConnection - if ($SqlCredential.count -eq 0) { - $sqlconn.ConnectionString = "Data Source=$sqlserver;Integrated Security=True;Connection Timeout=3; Initial Catalog=master" - } else { - $sqlconn.ConnectionString = "Data Source=$sqlserver;User Id=$($SqlCredential.UserName); Password=$($SqlCredential.GetNetworkCredential().Password);Connection Timeout=3; Initial Catalog=master" - } - - try { $sqlconn.Open() } catch { throw "Could not open SQL Server connection. Is $sqlserver online?" } - - # Everything will be contained within 1 transaction, even creating a new table if required - # and truncating the table, if specified. - $transaction = $sqlconn.BeginTransaction() - - # Ensure database exists - $sql = "select count(*) from master.dbo.sysdatabases where name = '$database'" - $sqlcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlconn, $transaction) - $dbexists = $sqlcmd.ExecuteScalar() - if ($dbexists -eq $false) { throw "Database does not exist on $sqlserver" } - Write-Output "[*] Database exists" - - $sqlconn.ChangeDatabase($database) - - # Ensure table exists - $sql = "select count(*) from $database.sys.tables where name = '$table'" - $sqlcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlconn, $transaction) - $tablexists = $sqlcmd.ExecuteScalar() - - # Create the table if required. Remember, this will occur within a transaction, so if the script fails, the - # new table will no longer exist. - if ($tablexists -eq $false) { - Write-Output "[*] Table does not exist" - Write-Output "[*] Creating table" - New-SqlTable -Csv $Csv -Delimiter $Delimiter -Columns $columns -ColumnText $columntext -SqlConn $sqlconn -Transaction $transaction - } else { Write-Output "[*] Table exists" } - - # Truncate if specified. Remember, this will occur within a transaction, so if the script fails, the - # truncate will not be committed. - if ($truncate -eq $true) { - Write-Output "[*] Truncating table" - $sql = "TRUNCATE TABLE [$table]" - $sqlcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlconn, $transaction) - try { $null = $sqlcmd.ExecuteNonQuery() } catch { Write-Warning "Could not truncate $table" } - } - - # Get columns for column mapping - if ($columnMappings -eq $null) { - $olecolumns = ($columns | ForEach-Object { $_ -Replace "\[|\]" }) - $sql = "select name from sys.columns where object_id = object_id('$table') order by column_id" - $sqlcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlconn, $transaction) - $sqlcolumns = New-Object System.Data.DataTable - $sqlcolumns.Load($sqlcmd.ExecuteReader()) - } - - # Time to import! - $elapsed = [System.Diagnostics.Stopwatch]::StartNew() - - # Process each CSV file specified - foreach ($file in $csv) { - - # Dynamically set NotifyAfter if it wasn't specified - if ($notifyAfter -eq 0) { - if ($resultcount -is [int]) { $notifyafter = $resultcount/10 } - else { $notifyafter = 50000 } - } - - # Setup bulk copy - Write-Output "[*] Starting bulk copy for $(Split-Path $file -Leaf)" - - # Setup bulk copy options - $bulkCopyOptions = @() - $options = "TableLock","CheckConstraints","FireTriggers","KeepIdentity","KeepNulls","Default","Truncate" - foreach ($option in $options) { - $optionValue = Get-Variable $option -ValueOnly -ErrorAction SilentlyContinue - if ($optionValue -eq $true) { $bulkCopyOptions += "$option" } - } - $bulkCopyOptions = $bulkCopyOptions -join " & " - - # Create SqlBulkCopy using default options, or options specified in command line. - if ($bulkCopyOptions.count -gt 1) { $bulkcopy = New-Object Data.SqlClient.SqlBulkCopy($oleconnstring, $bulkCopyOptions, $transaction) } - else { $bulkcopy = New-Object Data.SqlClient.SqlBulkCopy($sqlconn,"Default",$transaction) } - - $bulkcopy.DestinationTableName = "[$table]" - $bulkcopy.bulkcopyTimeout = 0 - $bulkCopy.BatchSize = $BatchSize - $bulkCopy.NotifyAfter = $NotifyAfter - - if ($safe -eq $true) { - # Setup bulkcopy mappings - for ($columnid = 0; $columnid -lt $sqlcolumns.rows.count; $columnid++) { - $null = $bulkCopy.ColumnMappings.Add($olecolumns[$columnid], $sqlcolumns.rows[$columnid].ItemArray[0]) - } - - # Setup the connection string. Data Source is the directory that contains the csv. - # The file name is also the table name, but with a "#" instead of a "." - $datasource = Split-Path $file - $tablename = (Split-Path $file -leaf).Replace(".","#") - $oleconnstring = "Provider=$provider;Data Source=$datasource;Extended Properties='text';" - - # To make command line queries easier, let the user just specify "csv" instead of the - # OleDbconnection formatted name (file.csv -> file#csv) - $sql = $Query -replace "\bcsv\b"," [$tablename]" - - # Setup the OleDbconnection - $oleconn = New-Object System.Data.OleDb.OleDbconnection - $oleconn.ConnectionString = $oleconnstring - - # Setup the OleDBCommand - $olecmd = New-Object System.Data.OleDB.OleDBCommand - $olecmd.Connection = $oleconn - $olecmd.CommandText = $sql - - try { $oleconn.Open() } catch { throw "Could not open OLEDB connection." } - - # Attempt to get the number of results so that a nice progress bar can be displayed. - # This takes extra time, and files over 100MB take too long, so just skip them. - if ($sql -match "GROUP BY") { "Query contains GROUP BY clause. Skipping result count." } - else { Write-Output "[*] Determining total rows to be copied. This may take a few seconds." } - - if ($sql -match "\bselect top\b") { - try { - $split = $sql -split "\bselect top \b" - $resultcount = [int]($split[1].Trim().Split()[0]) - Write-Output "[*] Attempting to fetch $resultcount rows" - } catch { Write-Warning "Couldn't determine total rows to be copied." } - } elseif ($sql -notmatch "GROUP BY") { - $filesize = (Get-ChildItem $file).Length / 1MB - if ($filesize -lt 100) { - try { - $split = $sql -split "\bfrom\b" - $sqlcount = "select count(*) from $($split[1])" - # Setup the OleDBCommand - $olecmd = New-Object System.Data.OleDB.OleDBCommand - $olecmd.Connection = $oleconn - $olecmd.CommandText = $sqlcount - $resultcount = [int]($olecmd.ExecuteScalar()) - Write-Output "[*] $resultcount rows will be copied" - } catch { Write-Warning "Couldn't determine total rows to be copied" } - } else { - Write-Output "[*] File is too large for efficient result count; progress bar will not be shown." - } - } - } - - # Write to server :D - try { - if ($safe -ne $true) { - # Check to ensure batchsize isn't equal to 0 - if ($batchsize -eq 0) { - write-warning "Invalid batchsize for this operation. Increasing to 50k" - $batchsize = 50000 - } - - # Open the text file from disk - $reader = New-Object System.IO.StreamReader($file) - if ($FirstRowColumns -eq $true) { $null = $reader.readLine() } - - # Create the reusable datatable. Columns will be genereated using info from SQL. - $datatable = New-Object System.Data.DataTable - - # Get table column info from SQL Server - $sql = "SELECT c.name as colname, t.name as datatype, c.max_length, c.is_nullable FROM sys.columns c - JOIN sys.types t ON t.system_type_id = c.system_type_id - WHERE c.object_id = object_id('$table') and t.name != 'sysname' - order by c.column_id" - $sqlcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlconn,$transaction) - $sqlcolumns = New-Object System.Data.DataTable - $sqlcolumns.load($sqlcmd.ExecuteReader()) - - foreach ($sqlcolumn in $sqlcolumns) { - $datacolumn = $datatable.Columns.Add() - $colname = $sqlcolumn.colname - $datacolumn.AllowDBNull = $sqlcolumn.is_nullable - $datacolumn.ColumnName = $colname - $datacolumn.DefaultValue = [DBnull]::Value - $datacolumn.Datatype = [string] - - # The following data types can sometimes cause issues when they are null - # so we will treat them differently - $convert = "bigint", "DateTimeOffset", "UniqueIdentifier", "smalldatetime", "datetime" - if ($convert -notcontains $sqlcolumn.datatype -and $turbo -ne $true){ - $null = $bulkCopy.ColumnMappings.Add($datacolumn.ColumnName, $sqlcolumn.colname) - } - } - # For the columns that cause trouble, we'll add an additional column to the datatable - # which will perform a conversion. - # Setting $column.datatype alone doesn't work as well as setting+converting. - if ($turbo -ne $true) { - $calcolumns = $sqlcolumns | Where-Object { $convert -contains $_.datatype } - foreach ($calcolumn in $calcolumns) { - $colname = $calcolumn.colname - $null = $newcolumn = $datatable.Columns.Add() - $null = $newcolumn.ColumnName = "computed$colname" - switch ($calcolumn.datatype) { - "bigint" { $netdatatype = "System.Int64"; $newcolumn.Datatype = [int64] } - "DateTimeOffset" { $netdatatype = "System.DateTimeOffset"; $newcolumn.Datatype = [DateTimeOffset] } - "UniqueIdentifier" { $netdatatype = "System.Guid"; $newcolumn.Datatype = [Guid] } - { "smalldatetime","datetime" -contains $_ } { $netdatatype = "System.DateTime"; $newcolumn.Datatype = [DateTime] } - } - # Use a data column expression to facilitate actual conversion - $null = $newcolumn.Expression = "Convert($colname, $netdatatype)" - $null = $bulkCopy.ColumnMappings.Add($newcolumn.ColumnName, $calcolumn.colname) - } - } - - # Check to see if file has quote identified data (ie. "first","second","third") - $quoted = $false - $checkline = Get-Content $file -Last 1 - $checkcolumns = $checkline.Split($delimiter) - foreach ($checkcolumn in $checkcolumns) { - if ($checkcolumn.StartsWith('"') -and $checkcolumn.EndsWith('"')) { $quoted = $true } - } - - if ($quoted -eq $true) { - Write-Warning "The CSV file appears quote identified. This may take a little longer." - # Thanks for this, Chris! http://www.schiffhauer.com/c-split-csv-values-with-a-regular-expression/ - $pattern = "((?<=`")[^`"]*(?=`"($delimiter|$)+)|(?<=$delimiter|^)[^$delimiter`"]*(?=$delimiter|$))" - } - if ($turbo -eq $true -and $first -eq 0) { - while (($line = $reader.ReadLine()) -ne $null) { - $i++ - if ($quoted -eq $true) { - $null = $datatable.Rows.Add(($line.TrimStart('"').TrimEnd('"')) -Split "`"$delimiter`"") - } else { $row = $datatable.Rows.Add($line.Split($delimiter)) } - - if (($i % $batchsize) -eq 0) { - $bulkcopy.WriteToServer($datatable) - Write-Output "[*] $i rows have been inserted in $([math]::Round($elapsed.Elapsed.TotalSeconds,2)) seconds" - $datatable.Clear() - } - } - } else { - if ($turbo -eq $true -and $first -gt 0) { Write-Warning "Using -First makes turbo a smidge slower." } - # Start import! - while (($line = $reader.ReadLine()) -ne $null) { - $i++ - try { - if ($quoted -eq $true) { - $row = $datatable.Rows.Add(($line.TrimStart('"').TrimEnd('"')) -Split $pattern) - } else { $row = $datatable.Rows.Add($line.Split($delimiter)) } - } catch { - $row = $datatable.NewRow() - try { - $tempcolumn = $line.Split($delimiter) - $colnum = 0 - foreach ($column in $tempcolumn) { - if ($column.length -ne 0) { - $row.item($colnum) = $column - } else { - $row.item($colnum) = [DBnull]::Value - } - $colnum++ - } - $newrow = $datatable.Rows.Add($row) - } catch { - Write-Warning "The following line ($i) is causing issues:" - Write-Output $line.Replace($delimiter,"`n") - - if ($quoted -eq $true) { - Write-Warning "The import has failed, likely because the quoted data was a little too inconsistent. Try using the -Safe parameter." - } - - Write-Verbose "Column datatypes:" - foreach ($c in $datatable.columns) { - Write-Verbose "$($c.columnname) = $($c.datatype)" - } - Write-Error $_.Exception.Message - break - } - } - - if (($i % $batchsize) -eq 0 -or $i -eq $first) { - $bulkcopy.WriteToServer($datatable) - Write-Output "[*] $i rows have been inserted in $([math]::Round($elapsed.Elapsed.TotalSeconds,2)) seconds" - $datatable.Clear() - if ($i -eq $first) { break } - } - } - } - # Add in all the remaining rows since the last clear - if($datatable.Rows.Count -gt 0) { - $bulkcopy.WriteToServer($datatable) - $datatable.Clear() - } - } else { - # Add rowcount output - $bulkCopy.Add_SqlRowscopied({ - $script:totalrows = $args[1].RowsCopied - if ($resultcount -is [int]) { - $percent = [int](($script:totalrows/$resultcount)*100) - $timetaken = [math]::Round($elapsed.Elapsed.TotalSeconds,2) - Write-Progress -id 1 -activity "Inserting $resultcount rows" -percentcomplete $percent ` - -status ([System.String]::Format("Progress: {0} rows ({1}%) in {2} seconds", $script:totalrows, $percent, $timetaken)) - } else { - Write-Host "$($script:totalrows) rows copied in $([math]::Round($elapsed.Elapsed.TotalSeconds,2)) seconds" } - }) - - $bulkCopy.WriteToServer($olecmd.ExecuteReader("SequentialAccess")) - if ($resultcount -is [int]) { Write-Progress -id 1 -activity "Inserting $resultcount rows" -status "Complete" -Completed } - - } - $completed = $true - } catch { - # If possible, give more information about common errors. - if ($resultcount -is [int]) { Write-Progress -id 1 -activity "Inserting $resultcount rows" -status "Failed" -Completed } - $errormessage = $_.Exception.Message.ToString() - $completed = $false - if ($errormessage -like "*for one or more required parameters*") { - - Write-Error "Looks like your SQL syntax may be invalid. `nCheck the documentation for more information or start with a simple -Query 'select top 10 * from csv'" - Write-Error "Valid CSV columns are $columns" - - } elseif ($errormessage -match "invalid column length") { - - # Get more information about malformed CSV input - $pattern = @("\d+") - $match = [regex]::matches($errormessage, @("\d+")) - $index = [int]($match.groups[1].Value)-1 - $sql = "select name, max_length from sys.columns where object_id = object_id('$table') and column_id = $index" - $sqlcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlconn,$transaction) - $datatable = New-Object System.Data.DataTable - $datatable.load($sqlcmd.ExecuteReader()) - $column = $datatable.name - $length = $datatable.max_length - - if ($safe -eq $true) { - Write-Warning "Column $index ($column) contains data with a length greater than $length" - Write-Warning "SqlBulkCopy makes it pretty much impossible to know which row caused the issue, but it's somewhere after row $($script:totalrows)." - } - } elseif ($errormessage -match "does not allow DBNull" -or $errormessage -match "The given value of type") { - - if ($tablexists -eq $false) { - Write-Error "Looks like the datatype prediction didn't work out. Please create the table manually with proper datatypes then rerun the import script." - } else { - $sql = "select name from sys.columns where object_id = object_id('$table') order by column_id" - $sqlcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlconn, $transaction) - $datatable = New-Object System.Data.DataTable - $datatable.Load($sqlcmd.ExecuteReader()) - $olecolumns = ($columns | ForEach-Object { $_ -Replace "\[|\]" }) -join ', ' - Write-Warning "Datatype mismatch." - Write-Output "[*] This is sometimes caused by null handling in SqlBulkCopy, quoted data, or the first row being column names and not data (-FirstRowColumns)" - Write-Output "[*] This could also be because the data types don't match or the order of the columns within the CSV/SQL statement " - Write-Output "[*] do not line up with the order of the table within the SQL Server.`n" - Write-Output "[*] CSV order: $olecolumns`n" - Write-Output "[*] SQL order: $($datatable.rows.name -join ', ')`n" - Write-Output "[*] If this is the case, you can reorder columns by using the -Query parameter or execute the import against a view.`n" - if ($safe -eq $false) { - Write-Output "[*] You can also try running this import using the -Safe parameter, which handles quoted text well.`n" - } - Write-Error "`n$errormessage" - } - - - } elseif ($errormessage -match "Input string was not in a correct format" -or $errormessage -match "The given ColumnName") { - Write-Warning "CSV contents may be malformed." - Write-Error $errormessage - } else { Write-Error $errormessage } - } - } - - if ($completed -eq $true) { - # "Note: This count does not take into consideration the number of rows actually inserted when Ignore Duplicates is set to ON." - $null = $transaction.Commit() - - if ($safe -eq $false) { - Write-Output "[*] $i total rows copied" - } else { - $total = [System.Data.SqlClient.SqlBulkCopyExtension]::RowsCopiedCount($bulkcopy) - Write-Output "[*] $total total rows copied" - } - } else { - Write-Output "[*] Transaction rolled back." - Write-Output "[*] (Was the proper parameter specified? Is the first row the column name?)." - } - - # Script is finished. Show elapsed time. - $totaltime = [math]::Round($elapsed.Elapsed.TotalSeconds,2) - Write-Output "[*] Total Elapsed Time for bulk insert: $totaltime seconds" -} - -End { - # Close everything just in case & ignore errors - try { $null = $sqlconn.close(); $null = $sqlconn.Dispose(); $null = $oleconn.close; - $null = $olecmd.Dispose(); $null = $oleconn.Dispose(); $null = $bulkCopy.close(); - $null = $bulkcopy.dispose(); $null = $reader.close; $null = $reader.dispose() } catch {} - - # Delete all the temp files - if ($SqlCredentialPath.length -gt 0) { - if ((Test-Path $SqlCredentialPath) -eq $true) { - $null = cmd /c "del $SqlCredentialPath" - } - } - - if ($shellswitch -eq $false -and $safe -eq $true) { - # Delete new schema files - Write-Verbose "Removing automatically generated schema.ini" - foreach ($file in $csv) { - $directory = Split-Path $file - $null = cmd /c "del $directory\schema.ini" | Out-Null - } - - # If a shell switch occured, delete the temporary module file. - if ((Test-Path "$env:TEMP\Import-CsvToSql.psm1") -eq $true) { cmd /c "del $env:TEMP\Import-CsvToSql.psm1" | Out-Null } - - # Move original schema.ini's back if they existed - if ($movedschemainis.count -gt 0) { - foreach ($item in $movedschemainis) { - Write-Verbose "Moving $($item.keys) back to $($item.values)" - $null = cmd /c "move $($item.keys) $($item.values)" - } - } - Write-Output "[*] Finished at $(Get-Date)" - } -} -} +Function Import-CsvToSql { +<# +.SYNOPSIS +Efficiently imports very large (and small) CSV files into SQL Server using only the .NET Framework and PowerShell. + +.DESCRIPTION +Import-CsvToSql takes advantage of .NET's super fast SqlBulkCopy class to import CSV files into SQL Server at up to 90,000 +rows a second. + +The entire import is contained within a transaction, so if a failure occurs or the script is aborted, no changes will persist. + +If the table specified does not exist, it will be automatically created using best guessed data types. In addition, +the destination table can be truncated prior to import. + +The Query parameter be used to import only data returned from a SQL Query executed against the CSV file(s). This function +supports a number of bulk copy options. Please see parameter list for details. + +THIS CODE IS PROVIDED "AS IS", WITH NO WARRANTIES. + +.PARAMETER CSV +Required. The location of the CSV file(s) to be imported. Multiple files are allowed, so long as they are formatted +similarly. If no CSV file is specified, a Dialog box will appear. + +.PARAMETER FirstRowColumns +Optional. This parameter specifies whether the first row contains column names. If the first row does not contain column +names and -Query is specified, use field names "column1, column2, column3" and so on. + +.PARAMETER Delimiter +Optional. If you do not pass a Delimiter, then a comma will be used. Valid Delimiters include: tab "`t", pipe "|", +semicolon ";", and space " ". + +.PARAMETER SqlServer +Required. The destination SQL Server. + +.PARAMETER SqlCredential +Connect to SQL Server using specified SQL Login credentials. + +.PARAMETER Database +Required. The name of the database where the CSV will be imported into. This parameter is autopopulated using the +-SqlServer and -SqlCredential (optional) parameters. + +.PARAMETER Table +SQL table or view where CSV will be imported into. + +If a table name is not specified, the table name will be automatically determined from filename, and a prompt will appear +to confirm table name. + +If table does not currently exist, it will created. SQL datatypes are determined from the first row of the CSV that +contains data (skips first row if -FirstRowColumns). Datatypes used are: bigint, numeric, datetime and varchar(MAX). + +If the automatically generated table datatypes do not work for you, please create the table prior to import. + +.PARAMETER Truncate +Truncate table prior to import. + +.PARAMETER Safe +Optional. By default, Import-CsvToSql uses StreamReader for imports. StreamReader is super fast, but may not properly parse some files. +Safe uses OleDb to import the records, it's slower, but more predictable when it comes to parsing CSV files. A schema.ini is automatically +generated for best results. If schema.ini currently exists in the directory, it will be moved to a temporary location, then moved back. + +OleDB also enables the script to use the -Query parameter, which enables you to import specific subsets of data within a CSV file. OleDB +imports at up to 21,000 rows/sec. + +.PARAMETER Turbo +Optional. Cannot be used in conjunction with -Query. + +Remember the Turbo button? This one actually works. Turbo is mega fast, but may not handle some datatypes as well as other methods. +If your CSV file is rather vanilla and doesn't have a ton of NULLs, Turbo may work well for you. Note: Turbo mode uses a Table Lock. + +StreamReader/Turbo imports at up to 90,000 rows/sec (well, 93,000 locally for a 19 column file so, really, the number may be over +100,000 rows/sec for tables with only a couple columns using optimized datatypes). + +.PARAMETER First +Only import first X rows. Count starts at the top of the file, but skips the first row if FirstRowColumns was specifeid. + +Use -Query if you need advanced First (TOP) functionality. + +.PARAMETER Query +Optional. Cannot be used in conjunction with -Turbo or -First. When Query is specified, the slower import method, OleDb, +will be used. + +If you want to import just the results of a specific query from your CSV file, use this parameter. +To make command line queries easy, this module will convert the word "csv" to the actual CSV formatted table name. +If the FirstRowColumns switch is not used, the query should use column1, column2, column3, etc + +Example: select column1, column2, column3 from csv where column2 > 5 +Example: select distinct artist from csv +Example: select top 100 artist, album from csv where category = 'Folk' + +See EXAMPLES for more example syntax. + +.PARAMETER TableLock +SqlBulkCopy option. Per Microsoft "Obtain a bulk update lock for the duration of the bulk copy operation. When not +specified, row locks are used." TableLock is automatically used when Turbo is specified. + +.PARAMETER CheckConstraints +SqlBulkCopy option. Per Microsoft "Check constraints while data is being inserted. By default, constraints are not checked." + +.PARAMETER FireTriggers +SqlBulkCopy option. Per Microsoft "When specified, cause the server to fire the insert triggers for the rows being inserted +into the database." + +.PARAMETER KeepIdentity +SqlBulkCopy option. Per Microsoft "Preserve source identity values. When not specified, identity values are assigned by +the destination." + +.PARAMETER KeepNulls +SqlBulkCopy option. Per Microsoft "Preserve null values in the destination table regardless of the settings for default +values. When not specified, null values are replaced by default values where applicable." + +.PARAMETER shellswitch +Internal parameter. + +.PARAMETER SqlCredentialPath +Internal parameter. + +.NOTES +Author: Chrissy LeMaire (@cl), netnerds.net + +.LINK +https://blog.netnerds.net/2015/09/import-csvtosql-super-fast-csv-to-sql-server-import-powershell-module/ + +.EXAMPLE +Import-CsvToSql -Csv C:\temp\housing.csv -SqlServer sql001 -Database markets + +Imports the entire *comma delimited* housing.csv to the SQL "markets" database on a SQL Server named sql001. +Since a table name was not specified, the table name is automatically determined from filename as "housing" +and a prompt will appear to confirm table name. + +The first row is not skipped, as it does not contain column names. + +.EXAMPLE +Import-CsvToSql -Csv .\housing.csv -SqlServer sql001 -Database markets -Table housing -First 100000 -Safe -Delimiter "`t" -FirstRowColumns + +Imports the first 100,000 rows of the tab delimited housing.csv file to the "housing" table in the "markets" database on a SQL Server +named sql001. Since Safe was specified, the OleDB method will be used for the bulk import. It's assumed Safe was used because +the first attempt without -Safe resulted in an import error. The first row is skipped, as it contains column names. + +.EXAMPLE +Import-CsvToSql -csv C:\temp\huge.txt -sqlserver sqlcluster -Database locations -Table latitudes -Delimiter "|" -Turbo + +Imports all records from the pipe delimited huge.txt file using the fastest method possible into the latitudes table within the +locations database. Obtains a table lock for the duration of the bulk copy operation. This specific command has been used +to import over 10.5 million rows in 2 minutes. + +.EXAMPLE +Import-CsvToSql -Csv C:\temp\housing.csv, .\housing2.csv -SqlServer sql001 -Database markets -Table ` +housing -Delimiter "`t" -query "select top 100000 column1, column3 from csv" -Truncate + +Truncates the "housing" table, then imports columns 1 and 3 of the first 100000 rows of the tab-delimited +housing.csv in the C:\temp directory, and housing2.csv in the current directory. Since the query is executed against +both files, a total of 200,000 rows will be imported. + +.EXAMPLE +Import-CsvToSql -Csv C:\temp\housing.csv -SqlServer sql001 -Database markets -Table housing -query ` +"select address, zip from csv where state = 'Louisiana'" -FirstRowColumns -Truncate -FireTriggers + +Uses the first line to determine CSV column names. Truncates the "housing" table on the SQL Server, +then imports the address and zip columns from all records in the housing.csv where the state equals Louisiana. + +Triggers are fired for all rows. Note that this does slightly slow down the import. + +.NOTES + Author: Chrissy LeMaire + Original Link: https://github.com/ctrlbold/dbatools/blob/master/Functions/CsvSqlimport.ps1 + Created Date: 2015-09-01 + +#> +[CmdletBinding(DefaultParameterSetName="Default")] +Param( + [string[]]$Csv, + [Parameter(Mandatory=$true)] + [string]$SqlServer, + [object]$SqlCredential, + [string]$Table, + [switch]$Truncate, + [string]$Delimiter = ",", + [switch]$FirstRowColumns, + [parameter(ParameterSetName="reader")] + [switch]$Turbo, + [parameter(ParameterSetName="ole")] + [switch]$Safe, + [int]$First = 0, + [parameter(ParameterSetName="ole")] + [string]$Query = "select * from csv", + [int]$BatchSize = 50000, + [int]$NotifyAfter, + [switch]$TableLock, + [switch]$CheckConstraints, + [switch]$FireTriggers, + [switch]$KeepIdentity, + [switch]$KeepNulls, + [switch]$shellswitch, + [string]$SqlCredentialPath + ) + +DynamicParam { + + if ($sqlserver.length -gt 0) { + # Auto populate database list from specified sqlserver + $paramconn = New-Object System.Data.SqlClient.SqlConnection + + if ($SqlCredentialPath.length -gt 0) { + $SqlCredential = Import-CliXml $SqlCredentialPath + } + + if ($SqlCredential.count -eq 0 -or $SqlCredential -eq $null) { + $paramconn.ConnectionString = "Data Source=$sqlserver;Integrated Security=True;" + } else { + $paramconn.ConnectionString = "Data Source=$sqlserver;User Id=$($SqlCredential.UserName); Password=$($SqlCredential.GetNetworkCredential().Password);" + } + + try { + $paramconn.Open() + $sql = "select name from master.dbo.sysdatabases" + $paramcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $paramconn, $null) + $paramdt = New-Object System.Data.DataTable + $paramdt.Load($paramcmd.ExecuteReader()) + $databaselist = $paramdt.rows.name + $null = $paramcmd.Dispose() + $null = $paramconn.Close() + $null = $paramconn.Dispose() + } catch { + # But if the routine fails, at least let them specify a database manually + $databaselist = "" + } + + # Reusable parameter setup + $newparams = New-Object System.Management.Automation.RuntimeDefinedParameterDictionary + $attributes = New-Object System.Management.Automation.ParameterAttribute + $attributes.Mandatory = $false + + # Database list parameter setup + $dbattributes = New-Object -Type System.Collections.ObjectModel.Collection[System.Attribute] + $dbattributes.Add($attributes) + # If a list of databases were returned, populate the parameter set + if ($databaselist.length -gt 0) { + $dbvalidationset = New-Object System.Management.Automation.ValidateSetAttribute -ArgumentList $databaselist + $dbattributes.Add($dbvalidationset) + } + + $Database = New-Object -Type System.Management.Automation.RuntimeDefinedParameter("Database", [String], $dbattributes) + $newparams.Add("Database", $Database) + return $newparams + } +} + +Begin { + Function Parse-OleQuery { + <# + .SYNOPSIS + Tests to ensure query is valid. This will be used for the GUI. + + .EXAMPLE + Parse-OleQuery -Csv sqlservera -Query $query -FirstRowColumns $FirstRowColumns -delimiter $delimiter + + .OUTPUT + + + #> + param( + [string]$Provider, + [Parameter(Mandatory=$true)] + [string[]]$csv, + [Parameter(Mandatory=$true)] + [string]$Query, + [Parameter(Mandatory=$true)] + [bool]$FirstRowColumns, + [Parameter(Mandatory=$true)] + [string]$delimiter + + ) + + if ($query.ToLower() -notmatch "\bcsv\b") { + return "SQL statement must contain the word 'csv'." + } + + try { + $datasource = Split-Path $csv[0] + $tablename = (Split-Path $csv[0] -leaf).Replace(".","#") + switch ($FirstRowColumns) { + $true { $FirstRowColumns = "Yes" } + $false { $FirstRowColumns = "No" } + } + if ($provider -ne $null) { + $connstring = "Provider=$provider;Data Source=$datasource;Extended Properties='text';" + } else { + $connstring = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=$datasource;Extended Properties='text';" + } + + $conn = New-Object System.Data.OleDb.OleDbconnection $connstring + $conn.Open() + $sql = $Query -replace "\bcsv\b"," [$tablename]" + $cmd = New-Object System.Data.OleDB.OleDBCommand + $cmd.Connection = $conn + $cmd.CommandText = $sql + $null = $cmd.ExecuteReader() + $cmd.Dispose() + $conn.Dispose() + return $true + } catch { return $false } + } + + Function Test-SqlConnection { + <# + .SYNOPSIS + Uses System.Data.SqlClient to gather list of user databases. + + .EXAMPLE + $SqlCredential = Get-Credential + Get-SqlDatabases -SqlServer sqlservera -SqlCredential $SqlCredential + + .OUTPUT + Array of user databases + + #> + param( + [Parameter(Mandatory=$true)] + [string]$SqlServer, + [object]$SqlCredential + ) + $testconn = New-Object System.Data.SqlClient.SqlConnection + if ($SqlCredential.count -eq 0) { + $testconn.ConnectionString = "Data Source=$sqlserver;Integrated Security=True;Connection Timeout=3" + } else { + $testconn.ConnectionString = "Data Source=$sqlserver;User Id=$($SqlCredential.UserName); Password=$($SqlCredential.GetNetworkCredential().Password);Connection Timeout=3" + } + try { + $testconn.Open() + $testconn.Close() + $testconn.Dispose() + return $true + } catch { + $message = $_.Exception.Message.ToString() + Write-Verbose $message + if ($message -match "A network") { $message = "Can't connect to $sqlserver." } + elseif ($message -match "Login failed for user") { $message = "Login failed for $username." } + return $message + } + } + + Function Get-SqlDatabases { + <# + .SYNOPSIS + Uses System.Data.SqlClient to gather list of user databases. + + .EXAMPLE + $SqlCredential = Get-Credential + Get-SqlDatabases -SqlServer sqlservera -SqlCredential $SqlCredential + + .OUTPUT + Array of user databases + + #> + param( + [Parameter(Mandatory=$true)] + [string]$SqlServer, + [object]$SqlCredential + ) + $paramconn = New-Object System.Data.SqlClient.SqlConnection + if ($SqlCredential.count -eq 0) { + $paramconn.ConnectionString = "Data Source=$sqlserver;Integrated Security=True;Connection Timeout=3" + } else { + $paramconn.ConnectionString = "Data Source=$sqlserver;User Id=$($SqlCredential.UserName); Password=$($SqlCredential.GetNetworkCredential().Password);Connection Timeout=3" + } + try { + $paramconn.Open() + $sql = "select name from master.dbo.sysdatabases where dbid > 4 order by name" + $paramcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $paramconn, $null) + $datatable = New-Object System.Data.DataTable + [void]$datatable.Load($paramcmd.ExecuteReader()) + $databaselist = $datatable.rows.name + $null = $paramcmd.Dispose() + $null = $paramconn.Close() + $null = $paramconn.Dispose() + return $databaselist + } catch { throw "Cannot access $sqlserver" } + } + + Function Get-SqlTables { + <# + .SYNOPSIS + Uses System.Data.SqlClient to gather list of user databases. + + .EXAMPLE + $SqlCredential = Get-Credential + Get-SqlTables -SqlServer sqlservera -Database mydb -SqlCredential $SqlCredential + + .OUTPUT + Array of tables + + #> + param( + [Parameter(Mandatory=$true)] + [string]$SqlServer, + [string]$Database, + [object]$SqlCredential + ) + $tableconn = New-Object System.Data.SqlClient.SqlConnection + if ($SqlCredential.count -eq 0) { + $tableconn.ConnectionString = "Data Source=$sqlserver;Integrated Security=True;Connection Timeout=3" + } else { + $username = ($SqlCredential.UserName).TrimStart("\") + $tableconn.ConnectionString = "Data Source=$sqlserver;User Id=$username; Password=$($SqlCredential.GetNetworkCredential().Password);Connection Timeout=3" + } + try { + $tableconn.Open() + $sql = "select name from $database.sys.tables order by name" + $tablecmd = New-Object System.Data.SqlClient.SqlCommand($sql, $tableconn, $null) + $datatable = New-Object System.Data.DataTable + [void]$datatable.Load($tablecmd.ExecuteReader()) + $tablelist = $datatable.rows.name + $null = $tablecmd.Dispose() + $null = $tableconn.Close() + $null = $tableconn.Dispose() + return $tablelist + } catch { return } + } + + Function Get-Columns { + <# + .SYNOPSIS + TextFieldParser will be used instead of an OleDbConnection. + This is because the OleDbConnection driver may not exist on x64. + + .EXAMPLE + $columns = Get-Columns -Csv .\myfile.csv -Delimiter "," -FirstRowColumns $true + + .OUTPUT + Array of column names + + #> + + param( + [Parameter(Mandatory=$true)] + [string[]]$Csv, + [Parameter(Mandatory=$true)] + [string]$Delimiter, + [Parameter(Mandatory=$true)] + [bool]$FirstRowColumns + ) + + $columnparser = New-Object Microsoft.VisualBasic.FileIO.TextFieldParser($csv[0]) + $columnparser.TextFieldType = "Delimited" + $columnparser.SetDelimiters($Delimiter) + $rawcolumns = $columnparser.ReadFields() + + if ($FirstRowColumns -eq $true) { + $columns = ($rawcolumns | ForEach-Object { $_ -Replace '"' } | Select-Object -Property @{Name="name"; Expression = {"[$_]"}}).name + } else { + $columns = @() + foreach ($number in 1..$rawcolumns.count ) { $columns += "[column$number]" } + } + + $columnparser.Close() + $columnparser.Dispose() + return $columns + } + + Function Get-ColumnText { + <# + .SYNOPSIS + Returns an array of data, which can later be parsed for potential datatypes. + + .EXAMPLE + $columns = Get-Columns -Csv .\myfile.csv -Delimiter "," + + .OUTPUT + Array of column data + + #> + param( + [Parameter(Mandatory=$true)] + [string[]]$Csv, + [Parameter(Mandatory=$true)] + [string]$Delimiter + ) + $columnparser = New-Object Microsoft.VisualBasic.FileIO.TextFieldParser($csv[0]) + $columnparser.TextFieldType = "Delimited" + $columnparser.SetDelimiters($Delimiter) + $line = $columnparser.ReadLine() + # Skip a line, in case first line are column names + $line = $columnparser.ReadLine() + $datatext = $columnparser.ReadFields() + $columnparser.Close() + $columnparser.Dispose() + return $datatext + } + + Function Write-Schemaini { + <# + .SYNOPSIS + Unfortunately, passing delimiter within the OleDBConnection connection string is unreliable, so we'll use schema.ini instead + The default delimiter in Windows changes depending on country, so we'll do this for every delimiter, even commas. + + Get OLE datatypes based on best guess of column data within the -Columns parameter. + + Sometimes SQL will accept a datetime that OLE won't, so Text will be used for datetime. + + .EXAMPLE + $columns = Get-Columns -Csv C:\temp\myfile.csv -Delimiter "," + $movedschemainis = Write-Schemaini -Csv C:\temp\myfile.csv -Columns $columns -ColumnText $columntext -Delimiter "," -FirstRowColumns $true + + .OUTPUT + Creates new schema files, that look something like this: + [housingdata.csv] + Format=Delimited(,) + ColNameHeader=True + Col1="House ID" Long + Col2="Description" Memo + Col3="Price" Double + + Returns an array of existing schema files that have been moved, if any. + + #> + param( + [Parameter(Mandatory=$true)] + [string[]]$Csv, + [Parameter(Mandatory=$true)] + [string[]]$Columns, + [string[]]$ColumnText, + [Parameter(Mandatory=$true)] + [string]$Delimiter, + [Parameter(Mandatory=$true)] + [bool]$FirstRowColumns + ) + + $movedschemainis = @{} + foreach ($file in $csv) { + $directory = Split-Path $file + $schemaexists = Test-Path "$directory\schema.ini" + if ($schemaexists -eq $true) { + $newschemaname = "$env:TEMP\$(Split-Path $file -leaf)-schema.ini" + $movedschemainis.Add($newschemaname,"$directory\schema.ini") + Move-Item "$directory\schema.ini" $newschemaname -Force + } + + $filename = Split-Path $file -leaf; $directory = Split-Path $file + Add-Content -Path "$directory\schema.ini" -Value "[$filename]" + Add-Content -Path "$directory\schema.ini" -Value "Format=Delimited($Delimiter)" + Add-Content -Path "$directory\schema.ini" -Value "ColNameHeader=$FirstRowColumns" + + $index = 0 + $olecolumns = ($columns | ForEach-Object { $_ -Replace "\[|\]", '"' }) + + foreach ($datatype in $columntext) { + $olecolumnname = $olecolumns[$index] + $index++ + + try { [System.Guid]::Parse($datatype) | Out-Null; $isguid = $true } catch { $isguid = $false } + + if ($isguid -eq $true) { $oledatatype = "Text" } + elseif ([int64]::TryParse($datatype,[ref]0) -eq $true) { $oledatatype = "Long" } + elseif ([double]::TryParse($datatype,[ref]0) -eq $true) { $oledatatype = "Double" } + elseif ([datetime]::TryParse($datatype,[ref]0) -eq $true) { $oledatatype = "Text" } + else { $oledatatype = "Memo" } + + Add-Content -Path "$directory\schema.ini" -Value "Col$($index)`=$olecolumnname $oledatatype" + } + } + return $movedschemainis + } + + Function New-SqlTable { + <# + .SYNOPSIS + Creates new Table using existing SqlCommand. + + SQL datatypes based on best guess of column data within the -ColumnText parameter. + Columns paramter determine column names. + + .EXAMPLE + New-SqlTable -Csv $Csv -Delimiter $Delimiter -Columns $columns -ColumnText $columntext -SqlConn $sqlconn -Transaction $transaction + + .OUTPUT + Creates new table + #> + + param( + [Parameter(Mandatory=$true)] + [string[]]$Csv, + [Parameter(Mandatory=$true)] + [string]$Delimiter, + [string[]]$Columns, + [string[]]$ColumnText, + [System.Data.SqlClient.SqlConnection]$sqlconn, + [System.Data.SqlClient.SqlTransaction]$transaction + ) + # Get SQL datatypes by best guess on first data row + $sqldatatypes = @(); $index = 0 + + foreach ($column in $columntext) { + $sqlcolumnname = $Columns[$index] + $index++ + + # bigint, float, and datetime are more accurate, but it didn't work + # as often as it should have, so we'll just go for a smaller datatype + if ([int64]::TryParse($column,[ref]0) -eq $true) { $sqldatatype = "varchar(255)" } + elseif ([double]::TryParse($column,[ref]0) -eq $true) { $sqldatatype = "varchar(255)" } + elseif ([datetime]::TryParse($column,[ref]0) -eq $true) { $sqldatatype = "varchar(255)" } + else { $sqldatatype = "varchar(MAX)" } + + $sqldatatypes += "$sqlcolumnname $sqldatatype" + } + + $sql = "BEGIN CREATE TABLE [$table] ($($sqldatatypes -join ' NULL,')) END" + $sqlcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlconn, $transaction) + try { $null = $sqlcmd.ExecuteNonQuery()} catch { + $errormessage = $_.Exception.Message.ToString() + throw "Failed to execute $sql. `nDid you specify the proper delimiter? `n$errormessage" + } + + Write-Output "[*] Successfully created table $table with the following column definitions:`n $($sqldatatypes -join "`n ")" + # Write-Warning "All columns are created using a best guess, and use their maximum datatype." + Write-Warning "This is inefficient but allows the script to import without issues." + Write-Warning "Consider creating the table first using best practices if the data will be used in production." +} + + + if ($shellswitch -eq $false) { Write-Output "[*] Started at $(Get-Date)" } + + # Load the basics + [void][Reflection.Assembly]::LoadWithPartialName("System.Data") + [void][Reflection.Assembly]::LoadWithPartialName("Microsoft.VisualBasic") + [void][Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms") + + # Getting the total rows copied is a challenge. Use SqlBulkCopyExtension. + # http://stackoverflow.com/questions/1188384/sqlbulkcopy-row-count-when-complete + + $source = 'namespace System.Data.SqlClient + { + using Reflection; + + public static class SqlBulkCopyExtension + { + const String _rowsCopiedFieldName = "_rowsCopied"; + static FieldInfo _rowsCopiedField = null; + + public static int RowsCopiedCount(this SqlBulkCopy bulkCopy) + { + if (_rowsCopiedField == null) _rowsCopiedField = typeof(SqlBulkCopy).GetField(_rowsCopiedFieldName, BindingFlags.NonPublic | BindingFlags.GetField | BindingFlags.Instance); + return (int)_rowsCopiedField.GetValue(bulkCopy); + } + } + } + ' + Add-Type -ReferencedAssemblies 'System.Data.dll' -TypeDefinition $source -ErrorAction SilentlyContinue +} + +Process { + # Supafast turbo mode requires a table lock, or it's just regular fast + if ($turbo -eq $true) { $tablelock = $true } + + # The query parameter requires OleDB which is invoked by the "safe" variable + # Actually, a select could be performed on the datatable used in StreamReader, too. + # Maybe that will be done later. + if ($query -ne "select * from csv") { $safe = $true } + + if ($first -gt 0 -and $query -ne "select * from csv") { + throw "Cannot use both -Query and -First. If a query is necessary, use TOP $first within your SQL statement." + } + + # In order to support -First in both Streamreader, and OleDb imports, the query must be modified slightly. + if ($first -gt 0) { $query = "select top $first * from csv" } + + # If shell switch occured, and encrypted SQL credentials were written to disk, create $SqlCredential + if ($SqlCredentialPath.length -gt 0) { + $SqlCredential = Import-CliXml $SqlCredentialPath + } + + # Get Database string from RuntimeDefinedParameter if required + if ($database -isnot [string]) { $database = $PSBoundParameters.Database } + if ($database.length -eq 0) { throw "You must specify a database." } + + # Check to ensure a Windows account wasn't used as a SQL Credential + if ($SqlCredential.count -gt 0 -and $SqlCredential.UserName -like "*\*") { throw "Only SQL Logins can be used as a SqlCredential." } + + # If no CSV was specified, prompt the user to select one. + if ($csv.length -eq 0) { + $fd = New-Object System.Windows.Forms.OpenFileDialog + $fd.InitialDirectory = [environment]::GetFolderPath("MyDocuments") + $fd.Filter = "CSV Files (*.csv;*.tsv;*.txt)|*.csv;*.tsv;*.txt" + $fd.Title = "Select one or more CSV files" + $fd.MultiSelect = $true + $null = $fd.showdialog() + $csv = $fd.filenames + if ($csv.length -eq 0) { throw "No CSV file selected." } + } else { + foreach ($file in $csv) { + $exists = Test-Path $file + if ($exists -eq $false) { throw "$file does not exist" } + } + } + + # Resolve the full path of each CSV + $resolvedcsv = @() + foreach ($file in $csv) { $resolvedcsv += (Resolve-Path $file).Path } + $csv = $resolvedcsv + + # UniqueIdentifier kills OLE DB / SqlBulkCopy imports. Check to see if destination table contains this datatype. + if ($safe -eq $true) { + $sqlcheckconn = New-Object System.Data.SqlClient.SqlConnection + if ($SqlCredential.count -eq 0 -or $SqlCredential -eq $null) { + $sqlcheckconn.ConnectionString = "Data Source=$sqlserver;Integrated Security=True;Connection Timeout=3; Initial Catalog=master" + } else { + $username = ($SqlCredential.UserName).TrimStart("\") + $sqlcheckconn.ConnectionString = "Data Source=$sqlserver;User Id=$username; Password=$($SqlCredential.GetNetworkCredential().Password);Connection Timeout=3; Initial Catalog=master" + } + + try { $sqlcheckconn.Open() } catch { throw $_.Exception } + + # Ensure database exists + $sql = "select count(*) from master.dbo.sysdatabases where name = '$database'" + $sqlcheckcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlcheckconn) + $dbexists = $sqlcheckcmd.ExecuteScalar() + if ($dbexists -eq $false) { throw "Database does not exist on $sqlserver" } + + # Change database after the fact, because if db doesn't exist, the login would fail. + $sqlcheckconn.ChangeDatabase($database) + + $sql = "SELECT t.name as datatype FROM sys.columns c + JOIN sys.types t ON t.system_type_id = c.system_type_id + WHERE c.object_id = object_id('$table') and t.name != 'sysname'" + $sqlcheckcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlcheckconn) + $sqlcolumns = New-Object System.Data.DataTable + $sqlcolumns.load($sqlcheckcmd.ExecuteReader("CloseConnection")) + $sqlcheckconn.Dispose() + if ($sqlcolumns.datatype -contains "UniqueIdentifier") { + throw "UniqueIdentifier not supported by OleDB/SqlBulkCopy. Query and Safe cannot be supported." + } + } + + if ($safe -eq $true) { + # Check for drivers. First, ACE (Access) if file is smaller than 2GB, then JET + # ACE doesn't handle files larger than 2gb. What gives? + foreach ($file in $csv) { + $filesize = (Get-ChildItem $file).Length / 1GB + if ($filesize -gt 1.99) { $jetonly = $true } + } + + if ($jetonly -ne $true) { $provider = (New-Object System.Data.OleDb.OleDbEnumerator).GetElements() | Where-Object { $_.SOURCES_NAME -like "Microsoft.ACE.OLEDB.*" } } + + if ($provider -eq $null) { + $provider = (New-Object System.Data.OleDb.OleDbEnumerator).GetElements() | Where-Object { $_.SOURCES_NAME -like "Microsoft.Jet.OLEDB.*" } + } + + # If a suitable provider cannot be found (If x64 and Access hasn't been installed) + # switch to x86, because it natively supports JET + if ($provider -ne $null) { + if ($provider -is [system.array]) { $provider = $provider[$provider.GetUpperBound(0)].SOURCES_NAME } else { $provider = $provider.SOURCES_NAME } + } + + # If a provider doesn't exist, it is necessary to switch to x86 which natively supports JET. + if ($provider -eq $null) { + # While Install-Module takes care of installing modules to x86 and x64, Import-Module doesn't. + # Because of this, the Module must be exported, written to file, and imported in the x86 shell. + $definition = (Get-Command Import-CsvToSql).Definition + $function = "Function Import-CsvToSql { $definition }" + Set-Content "$env:TEMP\Import-CsvToSql.psm1" $function + + # Encode the SQL string, since some characters may mess up after being passed a second time. + $bytes = [System.Text.Encoding]::UTF8.GetBytes($query) + $query = [System.Convert]::ToBase64String($bytes) + + # Put switches back into proper format + $switches = @() + $options = "TableLock","CheckConstraints","FireTriggers","KeepIdentity","KeepNulls","Default","Truncate","FirstRowColumns","Safe" + foreach ($option in $options) { + $optionValue = Get-Variable $option -ValueOnly -ErrorAction SilentlyContinue + if ($optionValue -eq $true) { $switches += "-$option" } + } + + # Perform the actual switch, which removes any registered Import-CsvToSql modules + # Then imports, and finally re-executes the command. + $csv = $csv -join ","; $switches = $switches -join " " + if ($SqlCredential.count -gt 0) { + $SqlCredentialPath = "$env:TEMP\sqlcredential.xml" + Export-CliXml -InputObject $SqlCredential $SqlCredentialPath + } + $command = "Import-CsvToSql -Csv $csv -SqlServer '$sqlserver'-Database '$database' -Table '$table' -Delimiter '$Delimiter' -First $First -Query '$query' -Batchsize $BatchSize -NotifyAfter $NotifyAfter $switches -shellswitch" + + if ($SqlCredentialPath.length -gt 0) { $command += " -SqlCredentialPath $SqlCredentialPath"} + Write-Verbose "Switching to x86 shell, then switching back." + &"$env:windir\syswow64\windowspowershell\v1.0\powershell.exe" "$command" + return + } + } + + # Do the first few lines contain the specified delimiter? + foreach ($file in $csv) { + try { $firstfewlines = Get-Content $file -First 3 -ErrorAction Stop } catch { throw "$file is in use." } + foreach ($line in $firstfewlines) { + if (($line -match $delimiter) -eq $false) { throw "Delimiter $delimiter not found in first row of $file." } + } + } + + # If more than one csv specified, check to ensure number of columns match + if ($csv -is [system.array]){ + $numberofcolumns = ((Get-Content $csv[0] -First 1 -ErrorAction Stop) -Split $delimiter).Count + + foreach ($file in $csv) { + $firstline = Get-Content $file -First 1 -ErrorAction Stop + $newnumcolumns = ($firstline -Split $Delimiter).Count + if ($newnumcolumns -ne $numberofcolumns) { throw "Multiple csv file mismatch. Do both use the same delimiter and have the same number of columns?" } + } + } + + # Automatically generate Table name if not specified, then prompt user to confirm + if ($table.length -eq 0) { + $table = [IO.Path]::GetFileNameWithoutExtension($csv[0]) + $title = "Table name not specified." + $message = "Would you like to use the automatically generated name: $table" + $yes = New-Object System.Management.Automation.Host.ChoiceDescription "&Yes", "Uses table name $table for import." + $no = New-Object System.Management.Automation.Host.ChoiceDescription "&No", "Allows you to specify an alternative table name." + $options = [System.Management.Automation.Host.ChoiceDescription[]]($yes, $no) + $result = $host.ui.PromptForChoice($title, $message, $options, 0) + if ($result -eq 1) { + do {$table = Read-Host "Please enter a table name"} while ($table.Length -eq 0) + } + } + + # If the shell has switched, decode the $query string. + if ($shellswitch -eq $true) { + $bytes = [System.Convert]::FromBase64String($Query) + $query = [System.Text.Encoding]::UTF8.GetString($bytes) + $csv = $csv -Split "," + } + + # Create columns based on first data row of first csv. + Write-Output "[*] Calculating column names and datatypes" + $columns = Get-Columns -Csv $Csv -Delimiter $Delimiter -FirstRowColumns $FirstRowColumns + if ($columns.count -gt 255 -and $safe -eq $true) { + throw "CSV must contain fewer than 256 columns." + } + + $columntext = Get-ColumnText -Csv $Csv -Delimiter $Delimiter + + # OLEDB method requires extra checks + if ($safe -eq $true) { + # Advanced SQL queries may not work (SqlBulkCopy likes a 1 to 1 mapping), so warn the user. + if ($Query -match "GROUP BY" -or $Query -match "COUNT") { Write-Warning "Script doesn't really support the specified query. This probably won't work, but will be attempted anyway." } + + # Check for proper SQL syntax, which for the purposes of this module must include the word "table" + if ($query.ToLower() -notmatch "\bcsv\b") { + throw "SQL statement must contain the word 'csv'. Please see this module's documentation for more details." + } + + # In order to ensure consistent results, a schema.ini file must be created. + # If a schema.ini already exists, it will be moved to TEMP temporarily. + Write-Verbose "Creating schema.ini" + $movedschemainis = Write-Schemaini -Csv $Csv -Columns $columns -Delimiter "$Delimiter" -FirstRowColumns $FirstRowColumns -ColumnText $columntext + } + + # Display SQL Server Login info + if ($sqlcredential.count -gt 0) { $username = "SQL login $($SqlCredential.UserName)" } + else { $username = "Windows login $(whoami)" } + # Open Connection to SQL Server + Write-Output "[*] Logging into $sqlserver as $username" + $sqlconn = New-Object System.Data.SqlClient.SqlConnection + if ($SqlCredential.count -eq 0) { + $sqlconn.ConnectionString = "Data Source=$sqlserver;Integrated Security=True;Connection Timeout=3; Initial Catalog=master" + } else { + $sqlconn.ConnectionString = "Data Source=$sqlserver;User Id=$($SqlCredential.UserName); Password=$($SqlCredential.GetNetworkCredential().Password);Connection Timeout=3; Initial Catalog=master" + } + + try { $sqlconn.Open() } catch { throw "Could not open SQL Server connection. Is $sqlserver online?" } + + # Everything will be contained within 1 transaction, even creating a new table if required + # and truncating the table, if specified. + $transaction = $sqlconn.BeginTransaction() + + # Ensure database exists + $sql = "select count(*) from master.dbo.sysdatabases where name = '$database'" + $sqlcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlconn, $transaction) + $dbexists = $sqlcmd.ExecuteScalar() + if ($dbexists -eq $false) { throw "Database does not exist on $sqlserver" } + Write-Output "[*] Database exists" + + $sqlconn.ChangeDatabase($database) + + # Ensure table exists + $sql = "select count(*) from $database.sys.tables where name = '$table'" + $sqlcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlconn, $transaction) + $tablexists = $sqlcmd.ExecuteScalar() + + # Create the table if required. Remember, this will occur within a transaction, so if the script fails, the + # new table will no longer exist. + if ($tablexists -eq $false) { + Write-Output "[*] Table does not exist" + Write-Output "[*] Creating table" + New-SqlTable -Csv $Csv -Delimiter $Delimiter -Columns $columns -ColumnText $columntext -SqlConn $sqlconn -Transaction $transaction + } else { Write-Output "[*] Table exists" } + + # Truncate if specified. Remember, this will occur within a transaction, so if the script fails, the + # truncate will not be committed. + if ($truncate -eq $true) { + Write-Output "[*] Truncating table" + $sql = "TRUNCATE TABLE [$table]" + $sqlcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlconn, $transaction) + try { $null = $sqlcmd.ExecuteNonQuery() } catch { Write-Warning "Could not truncate $table" } + } + + # Get columns for column mapping + if ($columnMappings -eq $null) { + $olecolumns = ($columns | ForEach-Object { $_ -Replace "\[|\]" }) + $sql = "select name from sys.columns where object_id = object_id('$table') order by column_id" + $sqlcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlconn, $transaction) + $sqlcolumns = New-Object System.Data.DataTable + $sqlcolumns.Load($sqlcmd.ExecuteReader()) + } + + # Time to import! + $elapsed = [System.Diagnostics.Stopwatch]::StartNew() + + # Process each CSV file specified + foreach ($file in $csv) { + + # Dynamically set NotifyAfter if it wasn't specified + if ($notifyAfter -eq 0) { + if ($resultcount -is [int]) { $notifyafter = $resultcount/10 } + else { $notifyafter = 50000 } + } + + # Setup bulk copy + Write-Output "[*] Starting bulk copy for $(Split-Path $file -Leaf)" + + # Setup bulk copy options + $bulkCopyOptions = @() + $options = "TableLock","CheckConstraints","FireTriggers","KeepIdentity","KeepNulls","Default","Truncate" + foreach ($option in $options) { + $optionValue = Get-Variable $option -ValueOnly -ErrorAction SilentlyContinue + if ($optionValue -eq $true) { $bulkCopyOptions += "$option" } + } + $bulkCopyOptions = $bulkCopyOptions -join " & " + + # Create SqlBulkCopy using default options, or options specified in command line. + if ($bulkCopyOptions.count -gt 1) { $bulkcopy = New-Object Data.SqlClient.SqlBulkCopy($oleconnstring, $bulkCopyOptions, $transaction) } + else { $bulkcopy = New-Object Data.SqlClient.SqlBulkCopy($sqlconn,"Default",$transaction) } + + $bulkcopy.DestinationTableName = "[$table]" + $bulkcopy.bulkcopyTimeout = 0 + $bulkCopy.BatchSize = $BatchSize + $bulkCopy.NotifyAfter = $NotifyAfter + + if ($safe -eq $true) { + # Setup bulkcopy mappings + for ($columnid = 0; $columnid -lt $sqlcolumns.rows.count; $columnid++) { + $null = $bulkCopy.ColumnMappings.Add($olecolumns[$columnid], $sqlcolumns.rows[$columnid].ItemArray[0]) + } + + # Setup the connection string. Data Source is the directory that contains the csv. + # The file name is also the table name, but with a "#" instead of a "." + $datasource = Split-Path $file + $tablename = (Split-Path $file -leaf).Replace(".","#") + $oleconnstring = "Provider=$provider;Data Source=$datasource;Extended Properties='text';" + + # To make command line queries easier, let the user just specify "csv" instead of the + # OleDbconnection formatted name (file.csv -> file#csv) + $sql = $Query -replace "\bcsv\b"," [$tablename]" + + # Setup the OleDbconnection + $oleconn = New-Object System.Data.OleDb.OleDbconnection + $oleconn.ConnectionString = $oleconnstring + + # Setup the OleDBCommand + $olecmd = New-Object System.Data.OleDB.OleDBCommand + $olecmd.Connection = $oleconn + $olecmd.CommandText = $sql + + try { $oleconn.Open() } catch { throw "Could not open OLEDB connection." } + + # Attempt to get the number of results so that a nice progress bar can be displayed. + # This takes extra time, and files over 100MB take too long, so just skip them. + if ($sql -match "GROUP BY") { "Query contains GROUP BY clause. Skipping result count." } + else { Write-Output "[*] Determining total rows to be copied. This may take a few seconds." } + + if ($sql -match "\bselect top\b") { + try { + $split = $sql -split "\bselect top \b" + $resultcount = [int]($split[1].Trim().Split()[0]) + Write-Output "[*] Attempting to fetch $resultcount rows" + } catch { Write-Warning "Couldn't determine total rows to be copied." } + } elseif ($sql -notmatch "GROUP BY") { + $filesize = (Get-ChildItem $file).Length / 1MB + if ($filesize -lt 100) { + try { + $split = $sql -split "\bfrom\b" + $sqlcount = "select count(*) from $($split[1])" + # Setup the OleDBCommand + $olecmd = New-Object System.Data.OleDB.OleDBCommand + $olecmd.Connection = $oleconn + $olecmd.CommandText = $sqlcount + $resultcount = [int]($olecmd.ExecuteScalar()) + Write-Output "[*] $resultcount rows will be copied" + } catch { Write-Warning "Couldn't determine total rows to be copied" } + } else { + Write-Output "[*] File is too large for efficient result count; progress bar will not be shown." + } + } + } + + # Write to server :D + try { + if ($safe -ne $true) { + # Check to ensure batchsize isn't equal to 0 + if ($batchsize -eq 0) { + write-warning "Invalid batchsize for this operation. Increasing to 50k" + $batchsize = 50000 + } + + # Open the text file from disk + $reader = New-Object System.IO.StreamReader($file) + if ($FirstRowColumns -eq $true) { $null = $reader.readLine() } + + # Create the reusable datatable. Columns will be genereated using info from SQL. + $datatable = New-Object System.Data.DataTable + + # Get table column info from SQL Server + $sql = "SELECT c.name as colname, t.name as datatype, c.max_length, c.is_nullable FROM sys.columns c + JOIN sys.types t ON t.system_type_id = c.system_type_id + WHERE c.object_id = object_id('$table') and t.name != 'sysname' + order by c.column_id" + $sqlcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlconn,$transaction) + $sqlcolumns = New-Object System.Data.DataTable + $sqlcolumns.load($sqlcmd.ExecuteReader()) + + foreach ($sqlcolumn in $sqlcolumns) { + $datacolumn = $datatable.Columns.Add() + $colname = $sqlcolumn.colname + $datacolumn.AllowDBNull = $sqlcolumn.is_nullable + $datacolumn.ColumnName = $colname + $datacolumn.DefaultValue = [DBnull]::Value + $datacolumn.Datatype = [string] + + # The following data types can sometimes cause issues when they are null + # so we will treat them differently + $convert = "bigint", "DateTimeOffset", "UniqueIdentifier", "smalldatetime", "datetime" + if ($convert -notcontains $sqlcolumn.datatype -and $turbo -ne $true){ + $null = $bulkCopy.ColumnMappings.Add($datacolumn.ColumnName, $sqlcolumn.colname) + } + } + # For the columns that cause trouble, we'll add an additional column to the datatable + # which will perform a conversion. + # Setting $column.datatype alone doesn't work as well as setting+converting. + if ($turbo -ne $true) { + $calcolumns = $sqlcolumns | Where-Object { $convert -contains $_.datatype } + foreach ($calcolumn in $calcolumns) { + $colname = $calcolumn.colname + $null = $newcolumn = $datatable.Columns.Add() + $null = $newcolumn.ColumnName = "computed$colname" + switch ($calcolumn.datatype) { + "bigint" { $netdatatype = "System.Int64"; $newcolumn.Datatype = [int64] } + "DateTimeOffset" { $netdatatype = "System.DateTimeOffset"; $newcolumn.Datatype = [DateTimeOffset] } + "UniqueIdentifier" { $netdatatype = "System.Guid"; $newcolumn.Datatype = [Guid] } + { "smalldatetime","datetime" -contains $_ } { $netdatatype = "System.DateTime"; $newcolumn.Datatype = [DateTime] } + } + # Use a data column expression to facilitate actual conversion + $null = $newcolumn.Expression = "Convert($colname, $netdatatype)" + $null = $bulkCopy.ColumnMappings.Add($newcolumn.ColumnName, $calcolumn.colname) + } + } + + # Check to see if file has quote identified data (ie. "first","second","third") + $quoted = $false + $checkline = Get-Content $file -Last 1 + $checkcolumns = $checkline.Split($delimiter) + foreach ($checkcolumn in $checkcolumns) { + if ($checkcolumn.StartsWith('"') -and $checkcolumn.EndsWith('"')) { $quoted = $true } + } + + if ($quoted -eq $true) { + Write-Warning "The CSV file appears quote identified. This may take a little longer." + # Thanks for this, Chris! http://www.schiffhauer.com/c-split-csv-values-with-a-regular-expression/ + $pattern = "((?<=`")[^`"]*(?=`"($delimiter|$)+)|(?<=$delimiter|^)[^$delimiter`"]*(?=$delimiter|$))" + } + if ($turbo -eq $true -and $first -eq 0) { + while (($line = $reader.ReadLine()) -ne $null) { + $i++ + if ($quoted -eq $true) { + $null = $datatable.Rows.Add(($line.TrimStart('"').TrimEnd('"')) -Split "`"$delimiter`"") + } else { $row = $datatable.Rows.Add($line.Split($delimiter)) } + + if (($i % $batchsize) -eq 0) { + $bulkcopy.WriteToServer($datatable) + Write-Output "[*] $i rows have been inserted in $([math]::Round($elapsed.Elapsed.TotalSeconds,2)) seconds" + $datatable.Clear() + } + } + } else { + if ($turbo -eq $true -and $first -gt 0) { Write-Warning "Using -First makes turbo a smidge slower." } + # Start import! + while (($line = $reader.ReadLine()) -ne $null) { + $i++ + try { + if ($quoted -eq $true) { + $row = $datatable.Rows.Add(($line.TrimStart('"').TrimEnd('"')) -Split $pattern) + } else { $row = $datatable.Rows.Add($line.Split($delimiter)) } + } catch { + $row = $datatable.NewRow() + try { + $tempcolumn = $line.Split($delimiter) + $colnum = 0 + foreach ($column in $tempcolumn) { + if ($column.length -ne 0) { + $row.item($colnum) = $column + } else { + $row.item($colnum) = [DBnull]::Value + } + $colnum++ + } + $newrow = $datatable.Rows.Add($row) + } catch { + Write-Warning "The following line ($i) is causing issues:" + Write-Output $line.Replace($delimiter,"`n") + + if ($quoted -eq $true) { + Write-Warning "The import has failed, likely because the quoted data was a little too inconsistent. Try using the -Safe parameter." + } + + Write-Verbose "Column datatypes:" + foreach ($c in $datatable.columns) { + Write-Verbose "$($c.columnname) = $($c.datatype)" + } + Write-Error $_.Exception.Message + break + } + } + + if (($i % $batchsize) -eq 0 -or $i -eq $first) { + $bulkcopy.WriteToServer($datatable) + Write-Output "[*] $i rows have been inserted in $([math]::Round($elapsed.Elapsed.TotalSeconds,2)) seconds" + $datatable.Clear() + if ($i -eq $first) { break } + } + } + } + # Add in all the remaining rows since the last clear + if($datatable.Rows.Count -gt 0) { + $bulkcopy.WriteToServer($datatable) + $datatable.Clear() + } + } else { + # Add rowcount output + $bulkCopy.Add_SqlRowscopied({ + $script:totalrows = $args[1].RowsCopied + if ($resultcount -is [int]) { + $percent = [int](($script:totalrows/$resultcount)*100) + $timetaken = [math]::Round($elapsed.Elapsed.TotalSeconds,2) + Write-Progress -id 1 -activity "Inserting $resultcount rows" -percentcomplete $percent ` + -status ([System.String]::Format("Progress: {0} rows ({1}%) in {2} seconds", $script:totalrows, $percent, $timetaken)) + } else { + Write-Host "$($script:totalrows) rows copied in $([math]::Round($elapsed.Elapsed.TotalSeconds,2)) seconds" } + }) + + $bulkCopy.WriteToServer($olecmd.ExecuteReader("SequentialAccess")) + if ($resultcount -is [int]) { Write-Progress -id 1 -activity "Inserting $resultcount rows" -status "Complete" -Completed } + + } + $completed = $true + } catch { + # If possible, give more information about common errors. + if ($resultcount -is [int]) { Write-Progress -id 1 -activity "Inserting $resultcount rows" -status "Failed" -Completed } + $errormessage = $_.Exception.Message.ToString() + $completed = $false + if ($errormessage -like "*for one or more required parameters*") { + + Write-Error "Looks like your SQL syntax may be invalid. `nCheck the documentation for more information or start with a simple -Query 'select top 10 * from csv'" + Write-Error "Valid CSV columns are $columns" + + } elseif ($errormessage -match "invalid column length") { + + # Get more information about malformed CSV input + $pattern = @("\d+") + $match = [regex]::matches($errormessage, @("\d+")) + $index = [int]($match.groups[1].Value)-1 + $sql = "select name, max_length from sys.columns where object_id = object_id('$table') and column_id = $index" + $sqlcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlconn,$transaction) + $datatable = New-Object System.Data.DataTable + $datatable.load($sqlcmd.ExecuteReader()) + $column = $datatable.name + $length = $datatable.max_length + + if ($safe -eq $true) { + Write-Warning "Column $index ($column) contains data with a length greater than $length" + Write-Warning "SqlBulkCopy makes it pretty much impossible to know which row caused the issue, but it's somewhere after row $($script:totalrows)." + } + } elseif ($errormessage -match "does not allow DBNull" -or $errormessage -match "The given value of type") { + + if ($tablexists -eq $false) { + Write-Error "Looks like the datatype prediction didn't work out. Please create the table manually with proper datatypes then rerun the import script." + } else { + $sql = "select name from sys.columns where object_id = object_id('$table') order by column_id" + $sqlcmd = New-Object System.Data.SqlClient.SqlCommand($sql, $sqlconn, $transaction) + $datatable = New-Object System.Data.DataTable + $datatable.Load($sqlcmd.ExecuteReader()) + $olecolumns = ($columns | ForEach-Object { $_ -Replace "\[|\]" }) -join ', ' + Write-Warning "Datatype mismatch." + Write-Output "[*] This is sometimes caused by null handling in SqlBulkCopy, quoted data, or the first row being column names and not data (-FirstRowColumns)" + Write-Output "[*] This could also be because the data types don't match or the order of the columns within the CSV/SQL statement " + Write-Output "[*] do not line up with the order of the table within the SQL Server.`n" + Write-Output "[*] CSV order: $olecolumns`n" + Write-Output "[*] SQL order: $($datatable.rows.name -join ', ')`n" + Write-Output "[*] If this is the case, you can reorder columns by using the -Query parameter or execute the import against a view.`n" + if ($safe -eq $false) { + Write-Output "[*] You can also try running this import using the -Safe parameter, which handles quoted text well.`n" + } + Write-Error "`n$errormessage" + } + + + } elseif ($errormessage -match "Input string was not in a correct format" -or $errormessage -match "The given ColumnName") { + Write-Warning "CSV contents may be malformed." + Write-Error $errormessage + } else { Write-Error $errormessage } + } + } + + if ($completed -eq $true) { + # "Note: This count does not take into consideration the number of rows actually inserted when Ignore Duplicates is set to ON." + $null = $transaction.Commit() + + if ($safe -eq $false) { + Write-Output "[*] $i total rows copied" + } else { + $total = [System.Data.SqlClient.SqlBulkCopyExtension]::RowsCopiedCount($bulkcopy) + Write-Output "[*] $total total rows copied" + } + } else { + Write-Output "[*] Transaction rolled back." + Write-Output "[*] (Was the proper parameter specified? Is the first row the column name?)." + } + + # Script is finished. Show elapsed time. + $totaltime = [math]::Round($elapsed.Elapsed.TotalSeconds,2) + Write-Output "[*] Total Elapsed Time for bulk insert: $totaltime seconds" +} + +End { + # Close everything just in case & ignore errors + try { $null = $sqlconn.close(); $null = $sqlconn.Dispose(); $null = $oleconn.close; + $null = $olecmd.Dispose(); $null = $oleconn.Dispose(); $null = $bulkCopy.close(); + $null = $bulkcopy.dispose(); $null = $reader.close; $null = $reader.dispose() } catch {} + + # Delete all the temp files + if ($SqlCredentialPath.length -gt 0) { + if ((Test-Path $SqlCredentialPath) -eq $true) { + $null = cmd /c "del $SqlCredentialPath" + } + } + + if ($shellswitch -eq $false -and $safe -eq $true) { + # Delete new schema files + Write-Verbose "Removing automatically generated schema.ini" + foreach ($file in $csv) { + $directory = Split-Path $file + $null = cmd /c "del $directory\schema.ini" | Out-Null + } + + # If a shell switch occured, delete the temporary module file. + if ((Test-Path "$env:TEMP\Import-CsvToSql.psm1") -eq $true) { cmd /c "del $env:TEMP\Import-CsvToSql.psm1" | Out-Null } + + # Move original schema.ini's back if they existed + if ($movedschemainis.count -gt 0) { + foreach ($item in $movedschemainis) { + Write-Verbose "Moving $($item.keys) back to $($item.values)" + $null = cmd /c "move $($item.keys) $($item.values)" + } + } + Write-Output "[*] Finished at $(Get-Date)" + } +} +} diff --git a/PowerShell/Export-AllPlans.ps1 b/PowerShell/Export-AllPlans.ps1 new file mode 100644 index 00000000..73745dd7 --- /dev/null +++ b/PowerShell/Export-AllPlans.ps1 @@ -0,0 +1,64 @@ +<# +.SYNOPSIS + Export all SQL Server query plans in files. +.DESCRIPTION + Export all plans from cache to a .SQLPLAN file +.PARAMETR + Machine - specify path to computer +.PARAMETR + SqlInstance - specify SQL Server instance name +.PARAMETR + DBname - specify database name +.PARAMETR + Output - specify path for exported files +.EXAMPLE +Export-AllPlans -Machine "hostname" +.NOTES + Requires: Powershell version 3 or higher, sqlps module + Tested on: SQL Server 2014/2016 + Author: Grant Fritchey + Author Modified: Alexandr Titenko + Created date: + Last modified: 2017-02-22 +#> + +function Export-AllPlans { + + param ( + #Specify path to computer + [Parameter(Mandatory=$false)] + [String]$Machine = $env:COMPUTERNAME, + #Specify SQL Server instance name + [Parameter(Mandatory=$false)] + [String]$SqlInstance = '', + #Specify database name + [Parameter(Mandatory=$false)] + [String]$DBname = '', + #Specify output files path + [Parameter(Mandatory=$false)] + [String]$Output = 'C:\plans' + ) +$Query = 'SELECT deqp.query_plan +FROM sys.dm_exec_query_stats AS deqs +CROSS APPLY sys.dm_exec_query_plan(deqs.plan_handle) AS deqp +WHERE deqp.query_plan IS NOT NULL;' + +$SqlConnection = New-Object System.Data.SqlClient.SqlConnection +$SqlConnection.ConnectionString = "Server=$Machine\$SqlInstance;Database=$DBname;trusted_connection=true" + +$PlanQuery = new-object System.Data.SqlClient.SqlCommand +$PlanQuery.CommandText = $Query +$PlanQuery.Connection = $SqlConnection +$PlanAdapter = New-Object System.Data.SqlClient.SqlDataAdapter +$PlanAdapter.SelectCommand = $PlanQuery +$PlanSet = new-object System.Data.DataSet +$PlanAdapter.Fill($PlanSet) + +foreach($row in $PlanSet.Tables[0]) +{ + $i+=1 + $row[0] | Out-File -FilePath "$Output\$i.sqlplan" +} +} + +Export-AllPlans \ No newline at end of file diff --git a/PowerShell/Export-SQLTableToCSV.ps1 b/PowerShell/Export-SQLTableToCSV.ps1 new file mode 100644 index 00000000..eb24e65a --- /dev/null +++ b/PowerShell/Export-SQLTableToCSV.ps1 @@ -0,0 +1,488 @@ +#requires -version 4 +#requires -modules PSLogging +<# +.SYNOPSIS + Export in parallel sql server tables into csv files using bcp utility +.DESCRIPTION + Export in parallel sql server tables into csv files using bcp utility + bcp docs: https://docs.microsoft.com/en-us/sql/tools/bcp-utility +.PARAMETER CSVPath + Specifies path to out csv file(s) and log file +.PARAMETER ServerName + Specifies a SQL Server name +.PARAMETER DatabaseName + Specifies a database name +.PARAMETER CodePage + Specifies code page +.PARAMETER SchemaName + Specifies shema name. Use this parameter with parameter TableName +.PARAMETER TableName + Specifies table name. +.PARAMETER ExcludeColumns + Specifies which columns will be excluded. +.PARAMETER OrderByColumns + Sets order by specific columns. +.PARAMETER MinRowCount + Specifies a minimum row count for table(s) which will be unloaded +.PARAMETER MaxRowCount + Specifies a maximum row count for table(s) which will be unloaded +.PARAMETER FormatFile + Specify format file +.PARAMETER FieldTerminator + Specify field terminator +.PARAMETER RowTerminator + Specify row terminator +.PARAMETER FileExtension + Determines the file extension +.PARAMETER Collation + Specifies collation. Using collation parameter not allowed without format file parameter ('xml' or 'fmt') +.PARAMETER OutputColumnHeaders + Specifies presence of headers - true - export with headers; false - export without headers +.PARAMETER SavePhysicalOrder + Specifies column order. False - Alphabet column order type; true - physical column order type +.PARAMETER OrderByColumns_term + Sets order by specific columns +.OUTPUTS Log File + The script log file stored in C:\Windows\Temp\.log +.NOTES + Version: + Author: Konstantin Taranov k@taranov.pro + Author Modified: Alexander Titenko aleks.titenko@gmail.com + Creation Date: 2017-09-26 + Last modified: 2017-09-29 + Purpose/Change: Add PSLogging module +.EXAMPLE + Export-SQLTableToCSV -CSVPath D:\12\ -ServerName NL-04 -DatabaseName NIIGAZ -MinRowCount 1 -MaxRowCount 3; +#> + +#---------------------------------------------------------[Initialisations]-------------------------------------------------------- + +#Set Error Action to Silently Continue +$ErrorActionPreference = 'SilentlyContinue' + +#Import Modules & Snap-ins +Import-Module PSLogging + +#----------------------------------------------------------[Declarations]---------------------------------------------------------- + +#Script Version +$sScriptVersion = '1.1' + +#Log File Info +$sLogPath = 'D:\1\' +$sLogName = 'Export-SQLTableToCSV.log' +$sLogFile = Join-Path -Path $sLogPath -ChildPath $sLogName + +#-----------------------------------------------------------[Functions]------------------------------------------------------------ + +Function Export-SQLTableToCSV +{ + Param( + # Specifies path to out csv file(s) and log file + [Parameter(Mandatory=$true)] + [string]$CSVPath, + # Specifies a SQL Server name + [Parameter(Mandatory=$true)] + [string]$ServerName, + # Specifies a database name + [Parameter(Mandatory=$true)] + [string]$DatabaseName, + [Parameter(Mandatory=$false)] + [string]$CodePage = '-C65001', + [Parameter(Mandatory=$false)] + [string]$ExcludeColumns, + [Parameter(Mandatory=$false)] + [string]$SchemaName, + [Parameter(Mandatory=$false)] + [string]$TableName, + [Parameter(Mandatory=$false)] + [string]$OrderByColumns, + [Parameter(Mandatory=$false)] + [string]$MinRowCount, + [Parameter(Mandatory=$false)] + [string]$MaxRowCount, + [Parameter(Mandatory=$false)] + [string]$FormatFile, + [Parameter(Mandatory=$false)] + [string]$FieldTerminator, + [Parameter(Mandatory=$false)] + [string]$RowTerminator, + [Parameter(Mandatory=$false)] + [string]$FileExtension, + [Parameter(Mandatory=$false)] + [string]$Collation, + [Parameter(Mandatory=$false)] + [switch]$OutputColumnHeaders, + [Parameter(Mandatory=$false)] + [switch]$SavePhysicalOrder, + [Parameter(Mandatory=$false)] + [string]$OrderByColumns_term = ',' + + ) + Begin + { + Write-LogInfo -LogPath $sLogFile -Message "Srart export SQL Tables from $DatabaseName in $CSVPath with bcp utility" + $sw = [Diagnostics.Stopwatch]::StartNew() + Write-Host "[*] Start script at $(Get-Date -Format 'HH:mm:ss')" -foreground:yellow; + } + Process + { + Try + { + if (-not(Test-Path $CSVPath)) + { + $message = "Path $CSVPath doesn't exist!" + Write-Host $message -ForegroundColor Red + Write-LogInfo -LogPath $sLogFile -Message $message + break + } + + $alllowableFormatFileTypes = @('','xml','fmt') + + if ($alllowableFormatFileTypes -notcontains $FormatFile) + { + $message = "Allowed values for parameter FormatFile is xml, fmt or blank value" + Write-Host $message -ForegroundColor Red + Write-LogInfo -LogPath $sLogFile -Message $message + break + } + + if (-not($FormatFile) -and $Collation) + { + $message = "Using collation parameter not allowed without format file parameter ('xml' or 'fmt')" + Write-Host $message -ForegroundColor Red + Write-LogInfo -LogPath $sLogFile -Message + break + } + + if ($ExcludeColumns[0] -notcontains '[' -and $ExcludeColumns -notcontains '') + { + $message = "Parameter orderByColumns must be in square brackets and separated by comma" + Write-Host $message -ForegroundColor Red + Write-LogInfo -LogPath $sLogFile -Message + break + } + + if ($ExcludeColumns[0] -contains '[' -and $FormatFile -notcontains '') + { + $message = "Parameter ExcludeColumns must be blank, since parameter FormatFile is present" + Write-Host $message -ForegroundColor Red + Write-LogInfo -LogPath $sLogFile -Message + break + } + + if ($ExcludeColumns -and ($SchemaName -or $TableName)) + { + $message = "Parameter ExcludeColumns must be blank, since parameters SchemaName or TableName are present" + Write-Host $message -ForegroundColor Red + Write-LogInfo -LogPath $sLogFile -Message + break + } + + if ($OrderByColumns -and ($SchemaName -or $TableName)) + { + $message = "Parameter OrderByColumns must be blank, since parameters SchemaName or TableName are present" + Write-Host $message -ForegroundColor Red + Write-LogInfo -LogPath $sLogFile -Message + break + } + + if (-not($OutputColumnHeaders)) + { + $message = "Headers won't output. If you want headers run with switch parameter: -OutputColumnHeaders" + Write-Host $message -ForegroundColor Yellow + Write-LogInfo -LogPath $sLogFile -Message $message + } + + if (-not($SavePhysicalOrder)) + { + $message = "Alphabet column order type use. If you want column physical order run with switch parameter: -SavePhysicalOrder" + Write-Host $message -ForegroundColor Yellow + Write-LogInfo -LogPath $sLogFile -Message $message + } + else + { + $message = "Physical column order is used" + Write-Host $message -ForegroundColor Yellow + Write-LogInfo -LogPath $sLogFile -Message "Use physical column order" + } + + if ($Collation) + { + $invokeCollation = Invoke-Sqlcmd -ServerInstance $ServerName -Database $DatabaseName -Verbose -Query " + select COUNT(*) from sys.fn_helpcollations() WHERE name = '$Collation';"; + + if ($invokeCollation.Column1 -eq 0) + { + $message = "Defined collation not found in server collations list" + Write-Host $message -ForegroundColor Yellow + Write-LogInfo -LogPath $sLogFile -Message $message + $Collation = '' + } + } + + if ($FieldTerminator) + { + $FieldTerminatorToHeaders = $FieldTerminator + $FieldTerminator = '-t"' + $FieldTerminator + '"'; + } + + if ($RowTerminator) + { + $RowTerminator = '-r"' + $RowTerminator + '"' + } + + if ($CodePage) + { + $CodePage = '-c ' + $CodePage + '' + } + + if ($FormatFile -and $FormatFile -eq 'xml') + { + $FormatFileForBcp = 'xml" -x' + } + else + { + $FormatFileForBcp = 'fmt"' + } + + if ($ShemaName) + { + $tableDependencySchemaName = "and t.schema_id = (SELECT SCHEMA_ID('$ShemaName'))" + } + else + { + $tableDependencySchemaName = '' + } + + if ($TableName) + { + $tableDependencyTableName = "and t.name = '$TableName'" + } + else + { + $tableDependencyTableName = '' + } + + $tableDependecy = Invoke-Sqlcmd -ServerInstance $ServerName -Database $DatabaseName -Verbose -Query " + SELECT QUOTENAME(SCHEMA_NAME(t.schema_id)) AS SchemaName + , QUOTENAME(t.name) AS TableName + , SUM(ps.row_count) AS TableRowCount + FROM sys.tables t + INNER JOIN sys.dm_db_partition_stats ps + ON ps.object_id = t.object_id + WHERE index_id < 2 + GROUP BY t.name + , t.schema_id + HAVING SUM(ps.row_count) >= $MinRowCount AND SUM(ps.row_count) <= $MaxRowCount $tableDependencySchemaName $tableDependencyTableName + ORDER BY SUM(ps.row_count) ASC + OPTION (RECOMPILE); + "; + + $tableDependecy + + Foreach ($t in $tableDependecy) + { + $tableFullName = $t[0] + '.' + $t[1] + $ShemaName = $t[0].Split('[').Split(']') + $TableName = $t[1].Split('[').Split(']') + $ShemaName = ([string]$ShemaName).Trim() + $TableName = ([string]$TableName).Trim() + $tableFullNameAndFileExt = $TableFullName + '.' + $FileExtension + $filePath = $CSVPath + $TableFullName + '.' + $FileExtension + $filePathWithHeaders = $CSVPath + $TableFullName + '_headers.' + $FileExtension + $FormatFilePath = $CSVPath + $TableFullName + '.' + $FormatFile + $FormatFileDelPath = $CSVPath + $TableFullName + 'del.' + $FormatFile + + Write-Debug "tableFullName:$tableFullName` + ShemaName:$ShemaName` + trimmedShemaName:$trimmedShemaName` + TableName:$TableName` + trimmedTableName:$trimmedTableName` + tableFullNameAndFileExt:$tableFullNameAndFileExt` + filePath:$filePath` + filePathWithHeaders:$filePathWithHeaders` + FormatFilePath:$FormatFilePath` + FormatFileDelPath:$FormatFileDelPath" + + if ($OrderByColumns) + { + $CountOrderByColumns = $OrderByColumns.split($OrderByColumns_term).Count + $invokeCountOrderByColumns = Invoke-Sqlcmd -ServerInstance $ServerName -Database $DatabaseName -Verbose -Query " + SELECT COUNT(*) + FROM sys.columns sac + WHERE sac.object_id = (SELECT OBJECT_ID('$tableFullName')) AND Name IN ('$OrderByColumns'); + "; + Write-Debug "OrderByColumns: $OrderByColumns` + CountOrderByColumns: $CountOrderByColumns" + + if ($invokeCountOrderByColumns.Column1 -notin $CountOrderByColumns) + { + write-Host "Some columns in OrderByColumns not exists in table" -ForegroundColor Red + break + } + Write-Debug "invokeCountOrderByColumns.Column1: $invokeCountOrderByColumns.Column1" + } + + if ($SavePhysicalOrder) + { + $columnsOrder = 'ORDER BY sac.column_id' + } + else + { + $columnsOrder = 'ORDER BY Name' + } + Write-Debug "SavePhysicalOrder: $SavePhysicalOrder` + columnsOrder: $columnsOrder" + + $invokeOrderByColumns = Invoke-Sqlcmd -ServerInstance $ServerName -Database $DatabaseName -Verbose -Query " + SELECT Name + FROM sys.columns sac + WHERE sac.object_id = (SELECT OBJECT_ID('$tableFullName')) AND Name NOT IN ('$ExcludeColumns') $columnsOrder; + "; + Write-Debug "ExcludeColumns: $ExcludeColumns" + + $Columns = '' + $ColumnsToHeaders = '' + + foreach ($i in $invokeOrderByColumns.Name) + { + $Columns += '[' + $i + '],' + $ColumnsToHeaders += $i + $FieldTerminatorToHeaders + } + $Columns = $Columns -replace ".$" + $ColumnsToHeaders = "'" + ($ColumnsToHeaders -replace ".$") + "'" + + Write-Debug "Columns: $Columns` + ColumnsToHeaders: $ColumnsToHeaders" + + $bcpStatement = 'bcp "SELECT '+ $Columns +' FROM ['+ $ServerName +'].['+ $DatabaseName +'].['+ $ShemaName +'].['+ $TableName +']' + ` + $OrdrByColumns + '" queryout "' + $CSVPath + '['+ $ShemaName +'].['+ $TableName +'].' + ` + $FileExtension + '" -T -S ' + $ServerName + ' ' + $CodePage + ' ' + $FieldTerminator + ' ' + $RowTerminator + ''; + + Write-Debug "bcpStatement: $bcpStatement" + + Invoke-Expression $bcpStatement + + if ($OutputColumnHeaders) + { + $bcpStatement = 'bcp "SELECT ' + $ColumnsToHeaders + '" queryout "' + $CSVPath + '['+ $ShemaName +'].['+ $TableName +']_headers.' + ` + $FileExtension + '" -T -S ' + $ServerName + ' ' + $CodePage + ' ' + $FieldTerminator + ' ' + $RowTerminator + ''; + + Write-Debug "bcpStatement: $bcpStatement" + + Invoke-Expression $bcpStatement + } + + cmd /C "copy /b $filePathWithHeaders + $filePath $filePathWithHeaders" + cmd /C "del $filePath" + cmd /C "ren $filePathWithHeaders `"$tableFullNameAndFileExt`"" + + if ($FormatFile -eq ('xml' -or 'fmt') -and $SavePhysicalOrder) + { + $bcpStatement = 'bcp ['+ $DatabaseName +'].'+ $tableFullName +' format nul -c -f "' + $CSVPath + ` + '['+ $ShemaName +'].['+ $TableName +'].' + $FormatFileForBcp + ' ' + $FieldTerminator + ' -T '; + + Write-Debug "bcpStatement: $bcpStatement" + + Invoke-Expression $bcpStatement + + } + + if ($FormatFile) + { + $tmpSchemaAndTableName = '['+ $ShemaName +'].[tmp' + $TableName + ']' + + if ($SavePhysicalOrder) + { + $bcpStatement = 'bcp ['+ $DatabaseName +'].'+ $tableFullName +' format nul -c -f "' + $CSVPath + ` + '['+ $ShemaName +'].['+ $TableName +']del.' + $FormatFileForBcp + ' ' + $FieldTerminator + ' -T '; + + Write-Debug "bcpStatement: $bcpStatement" + + Invoke-Expression $bcpStatement + } + else + { + $invokeStatement = 'IF OBJECT_ID(''['+ $DatabaseName +'].'+ $tmpSchemaAndTableName +''') IS NOT NULL DROP TABLE ' +$tmpSchemaAndTableName +'; + SELECT ' + $Columns + ' INTO ' +$tmpSchemaAndTableName +' FROM ['+ $DatabaseName +'].'+ $tableFullName +' WHERE 1=2;' + + Write-Debug "invokeStatement: $invokeStatement" + + Invoke-Sqlcmd -ServerInstance $ServerName -Database $DatabaseName -Verbose -Query $invokeStatement + } + + } + + if ($FormatFile) + { + $invokeCollation = Invoke-Sqlcmd -ServerInstance $ServerName -Database $DatabaseName -Verbose -Query " + SELECT CONVERT(VARCHAR(128), DATABASEPROPERTYEX('$DatabaseName', 'collation')); + ;"; + + $CurrentCollation = $invokeCollation.Column1 + Write-Debug "CurrentCollation: $CurrentCollation" + + if ($FormatFile -eq 'xml') + { + $lob = 'SINGLE_NCLOB' + } + if ($FormatFile -eq 'fmt') + { + $lob = 'SINGLE_CLOB' + } + + if ($Collation -eq '' -and $FormatFile -eq 'fmt') + { + $Collation = '""""' + } + + if ($Collation -eq '' -and $FormatFile -eq 'xml') + { + $Collation = '' + } + + $bcpStatement = 'bcp "SELECT REPLACE(BulkColumn, '''+ $CurrentCollation +''', '''+ $Collation +''') AS BulkColumn + FROM OPENROWSET(BULK '''+ $FormatFileDelPath +''', '+ $lob +') as x" queryout "'+ $FormatFilePath +'" -c -T' + + Write-Debug "bcpStatement - $bcpStatement" + + Invoke-Expression $bcpStatement + + cmd /C "del $FormatFileDelPath" + } + } + } + Catch + { + Write-LogError -LogPath $sLogFile -Message $_.Exception -ExitGracefully + Break + } + } + End + { + If (-not $Error) + { + Write-Host 'Completed Successfully.' -ForegroundColor Green + Write-Host "[*] Stop script at $(Get-Date -Format 'HH:mm:ss')" -foreground:yellow; + $sw.Stop(); + $sw.Elapsed | Format-Table -Property Minutes, Seconds, Milliseconds -AutoSize; + Write-LogInfo -LogPath $sLogFile -Message 'Completed Successfully.' + Write-LogInfo -LogPath $sLogFile -Message ' ' + } + else + { + Write-Error -ErrorRecord + Write-LogInfo -LogPath $sLogFile -Message $Error + } + } +} + +#-----------------------------------------------------------[Execution]------------------------------------------------------------ + +Start-Log -LogPath $sLogPath -LogName $sLogName -ScriptVersion $sScriptVersion + +Export-SQLTableToCSV -CSVPath D:\1\ -ServerName NL-04 -DatabaseName NIIGAZ -MinRowCount 1 -MaxRowCount 2 -CodePage '-C65001' -FileExtension txt -FieldTerminator '|' -RowTerminator '\n' -OutputColumnHeaders -SavePhysicalOrder -Debug -FormatFile xml + + +Stop-Log -LogPath $sLogFile diff --git a/PowerShell/Fast_table_to_csv.ps1 b/PowerShell/Fast_table_to_csv.ps1 index 01eb8dba..9c63b6d9 100644 --- a/PowerShell/Fast_table_to_csv.ps1 +++ b/PowerShell/Fast_table_to_csv.ps1 @@ -1,56 +1,56 @@ -<# -.SYNOPSIS - . -.DESCRIPTION - This script export SQL Server table to csv file -.PARAMETER sqlCmd.CommandText - SQL query for export data -.EXAMPLE - C:\PS> - -.NOTES - Author: Bill Graziano - Original Link: http://www.sqlteam.com/article/fast-csv-import-in-powershell-to-sql-server - Created Date: 2014-03-18 -#> -$streamWriter = New-Object System.IO.StreamWriter ".\SimpleCsvOut3.txt" -$sqlConn = New-Object System.Data.SqlClient.SqlConnection $ConnectionString -$sqlCmd = New-Object System.Data.SqlClient.SqlCommand -$sqlCmd.Connection = $sqlConn -$sqlCmd.CommandText = "SELECT * FROM Test.dbo.CsvImport" -$sqlConn.Open(); -$reader = $sqlCmd.ExecuteReader(); - -# Initialze the arry the hold the values -$array = @() -for ( $i = 0 ; $i -lt $reader.FieldCount; $i++ ) - { $array += @($i) } - -# Write Header -$streamWriter.Write($reader.GetName(0)) -for ( $i = 1; $i -lt $reader.FieldCount; $i ++) -{ $streamWriter.Write($("," + $reader.GetName($i))) } - -$streamWriter.WriteLine("") # Close the header line - -while ($reader.Read()) -{ - # get the values; - $fieldCount = $reader.GetValues($array); - - # add quotes if the values have a comma - for ($i = 0; $i -lt $array.Length; $i++) - { - if ($array[$i].ToString().Contains(",")) - { - $array[$i] = '"' + $array[$i].ToString() + '"'; - } - } - - $newRow = [string]::Join(",", $array); - - $streamWriter.WriteLine($newRow) -} -$reader.Close(); -$sqlConn.Close(); -$streamWriter.Close(); +<# +.SYNOPSIS + . +.DESCRIPTION + This script export SQL Server table to csv file +.PARAMETER sqlCmd.CommandText + SQL query for export data +.EXAMPLE + C:\PS> + +.NOTES + Author: Bill Graziano + Original Link: http://www.sqlteam.com/article/fast-csv-import-in-powershell-to-sql-server + Created Date: 2014-03-18 +#> +$streamWriter = New-Object System.IO.StreamWriter ".\SimpleCsvOut3.txt" +$sqlConn = New-Object System.Data.SqlClient.SqlConnection $ConnectionString +$sqlCmd = New-Object System.Data.SqlClient.SqlCommand +$sqlCmd.Connection = $sqlConn +$sqlCmd.CommandText = "SELECT * FROM Test.dbo.CsvImport" +$sqlConn.Open(); +$reader = $sqlCmd.ExecuteReader(); + +# Initialze the arry the hold the values +$array = @() +for ( $i = 0 ; $i -lt $reader.FieldCount; $i++ ) + { $array += @($i) } + +# Write Header +$streamWriter.Write($reader.GetName(0)) +for ( $i = 1; $i -lt $reader.FieldCount; $i ++) +{ $streamWriter.Write($("," + $reader.GetName($i))) } + +$streamWriter.WriteLine("") # Close the header line + +while ($reader.Read()) +{ + # get the values; + $fieldCount = $reader.GetValues($array); + + # add quotes if the values have a comma + for ($i = 0; $i -lt $array.Length; $i++) + { + if ($array[$i].ToString().Contains(",")) + { + $array[$i] = '"' + $array[$i].ToString() + '"'; + } + } + + $newRow = [string]::Join(",", $array); + + $streamWriter.WriteLine($newRow) +} +$reader.Close(); +$sqlConn.Close(); +$streamWriter.Close(); diff --git a/PowerShell/Format-SQLCode.ps1 b/PowerShell/Format-SQLCode.ps1 new file mode 100644 index 00000000..4d966951 --- /dev/null +++ b/PowerShell/Format-SQLCode.ps1 @@ -0,0 +1,105 @@ +<# +.Synopsis + Formatting your T-SQL code +.DESCRIPTION + Formatting T-SQL code through RedGate Format Api (https://www.red-gate.com/products/sql-development/sql-prompt/) + + Works on PowerShell Core (aka PowerShell 6+) +.EXAMPLE + $Script = '--(Query 16)_(AlwaysOn AG Cluster) + SELECT cluster_name, quorum_type_desc, quorum_state_desc + FROM sys.dm_hadr_cluster WITH (NOLOCK) OPTION (RECOMPILE); + ------' + + Format-SQLCode -Script $Script -Style Default +.EXAMPLE + Formatting one file + + Format-SQLCode ` + -FullName 'C:\SQL Server 2014 Diagnostic Information Queries\(Query 11)_(SQL Server Agent Alerts).sql' ` + -Style Default +.EXAMPLE + Formatting all file on a directory + + Get-ChildItem 'C:\SQL Server 2014 Diagnostic Information Queries' -File | Format-SQLCode -Style Default + +.EXAMPLE + Formatting all file on a directory and save the result to file. + + $ListFiles = Get-ChildItem 'C:\Temp\SQL Server 2014 Diagnostic Information Queries\' -File + Foreach($File in $ListFiles) { + $File | Format-SQLCode -Style Indented | Set-Content -PassThru -Path $File.FullName + } + +.LINK + Author: Mateusz Nadobnik + Link: http://mnadobnik.pl/format-sqlcode +  + Date: 01.02.2019 + Version: 1.0.0.0 + Keywords: Formatting, T-SQL, RedGate, SQL Prompt + Notes: + Changelog: +#> +function Format-SQLCode { + [OutputType([String])] + [cmdletbinding()] + param( + #Style for format script t-sql + [ValidateSet('Collapsed', 'Commas before', 'Default', 'Indented', 'Right aligned')] + [string]$Style, + #Path to file + [Parameter(Mandatory, ParameterSetName = 'File', ValueFromPipelineByPropertyName = $true)] + [Alias('FilePath', 'FullNamePath')] + [string]$FullName, + #Script + [Parameter(Mandatory, ParameterSetName = 'Script')] + [string]$Script + ) + begin { + $ErrorActionPreference = 'Continue'; + $FnName = '[Format-RedGateScriptSQL]'; + if ((Invoke-WebRequest -UseBasicParsing 'https://promptformatapi.red-gate.com/').StatusCode -ne 200) { + Write-Warning "$FnName Check your connection with the Internet"; + return; + } + } + process { + $Uri = "https://promptformatapi.red-gate.com/api/format/$Style"; + try { + if ($FullName) { + # preparing body for request + Write-Verbose "$FnName Get content from file: $FullName"; + $FileContent = Get-Content $FullName -Encoding UTF8 -Raw; + $Body = "`"$FileContent`""; + Write-Verbose "$Body"; + } + elseif ($Script) { + Write-Verbose "$Body"; + $Body = "`"$Script`""; + } + + Write-Verbose "$FnName $paramInvokeWebRequest"; + + Write-Verbose "$FnName Invoke-WebRequest"; + $Response = Invoke-WebRequest ` + -Uri $Uri ` + -Method "POST" ` + -Headers @{"path" = "/api/format/Collapsed"; "origin" = "https://www.red-gate.com"; "accept-encoding" = "gzip, deflate, br"; "accept-language" = "pl-PL,pl;q=0.9,en-US;q=0.8,en;q=0.7"; "user-agent" = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36"; "accept" = "*/*"; "referer" = "https://www.red-gate.com/products/sql-development/sql-prompt/?utm_source=format-sql&utm_medium=redirect&utm_campaign=sqlprompt"; "authority" = "promptformatapi.red-gate.com"; "scheme" = "https"; "dnt" = "1"; "method" = "POST"} ` + -ContentType "application/json" ` + -Body $Body ` + + if ($Response.StatusCode -eq 200) { + [string]$FormattedScript = ($Response.Content).replace('\r\n', '`r`n'); + return Invoke-Expression -Command $FormattedScript; + } + } + catch [Microsoft.PowerShell.Commands.HttpResponseException] { + Write-Warning "$(($_.ErrorDetails.Message | ConvertFrom-Json).Details) - $FullName"; + } + catch { + Write-Warning "$($_.ErrorDetails.Message) - $FullName"; + } + } + end { }; +} diff --git a/PowerShell/Get-CmsHosts.ps1 b/PowerShell/Get-CmsHosts.ps1 new file mode 100644 index 00000000..7c89d7e9 --- /dev/null +++ b/PowerShell/Get-CmsHosts.ps1 @@ -0,0 +1,76 @@ +<# +.SYNOPSIS This function queries a CMS instance and returns a list of instances Written by Mark Wilkinson @m82labs on Twitter, website m82labs.com + +.PARAMETER cmdHost + +.PARAMETER searchPattern !!NOT INJECTION SAFE!! this parameter simply gets inserted into a wildcard query on the list of available instances on the CMS. This parameter accepts a pipe delimeter list of patterns, allowing you to match instance names on multiple conditions. + +.PARAMETER version The SQL Server version (build number) that should be running on the returned instances. !! This will query each instance to get the build version, use in conjuction with searchPattern !! + +.EXAMPLE This will return all instances that start with 'Pattern' and are on SQL 2016 RTM +Get-CMSHosts -searchPattern 'Pattern' -version '13.0.1605.1' + +.EXAMPLE +This can be used in a 'ForEach': ForEach ( $instance in Get-CMSHosts -searchPattern 'Pattern' -version '13.0.1605.1' ) { #Do some stuff } +.NOTES +Original link: http://tracyboggiano.com/archive/2017/04/query-multipleservers +#> +function Get-CmsHosts() { + param( + [CmdletBinding()] + [string]$cmsHost = '', + [string]$searchPattern = '', + [string]$instanceList, + [string]$version + ) + + If ( $instanceList -and (Test-Path -Path $instanceList) ) { + $results = Get-Content -Path $instanceList + } Else { + $pattern = '' + + For ( $pat_i = 0; $pat_i -lt ($searchPattern.Split('|')).Count; $pat_i++ ) { + If ( $pat_i -gt 0 ) { $pattern += " OR " } + $pattern += "server_name LIKE '$($searchPattern.Split('|')[$pat_i])%'" + } + + [string]$query_get_servers = "SELECT DISTINCT server_name FROM msdb.dbo.sysmanagement_shared_registered_servers WHERE {{searchPattern}}" + $results = (Invoke-SqlCmd -query $query_get_servers.Replace('{{searchPattern}}',$pattern) -ServerInstance $cmsHost).server_name + } + + If ( $version ) { + ForEach ( $instance In $results ) { + Try { + If ( (Invoke-Sqlcmd -Query "SELECT SERVERPROPERTY('productversion') AS v" -ServerInstance $instance -ConnectionTimeout 1 -QueryTimeout 1 -ErrorAction Stop).v -ne $version) { + $results = $results | Where-Object { $_ -notmatch $instance } + } + } Catch { + $connect_error += 1 + Write-Host "failed: $($_.Exception.Message)" -ForegroundColor White -BackgroundColor Red + $results = $results | Where-Object { $_ -notmatch $instance } + continue + } + } + } + + If ( $connect_error ) { + Write-Host " -[$($connect_error) instance(s) skipped due to connection error]- " -ForegroundColor Red -NoNewline + } + + return $results +} + + +Get-CmsHosts -InstanceList 'c:\temp\servers.txt' | % { New-PSSession -ComputerName $_ | out-null} +$sessions = Get-PSSession + +$scriptblock = { +$query = @" +SELECT @@VERSION +"@ +Invoke-Sqlcmd -Query $query +} + +Invoke-Command -Session $($sessions | ? { $_.State -eq 'Opened' }) -ScriptBlock $scriptblock | Select * -ExcludeProperty RunspaceId | Out-GridView +$sessions | Remove-PSSession + diff --git a/PowerShell/Get-MachineInformationExcel.ps1 b/PowerShell/Get-MachineInformationExcel.ps1 index 9663b43d..98c8e0ab 100644 --- a/PowerShell/Get-MachineInformationExcel.ps1 +++ b/PowerShell/Get-MachineInformationExcel.ps1 @@ -1,885 +1,885 @@ -<#============================================================================ - File: Get-MachineInformationExcel.ps - - Summary: Get machine information like memory, CPU and disk configuration - and output it to Excel - ------------------------------------------------------------------------------- - Written by Sander Stad, SQLStad.nl - - (c) 2015, SQLStad.nl. All rights reserved. - - For more scripts and sample code, check out http://www.SQLStad.nl - - You may alter this code for your own *non-commercial* purposes (e.g. in a - for-sale commercial tool). Use in your own environment is encouraged. - You may republish altered code as long as you include this copyright and - give due credit, but you must obtain prior permission before blogging - this code. - - THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF - ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED - TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A - PARTICULAR PURPOSE. -============================================================================#> - -# Import the Excel library -Import-Module ExcelPSLib -Force -Import-Module PSSQLLib -Force - -CLS - -function Generate-Documentation() -{ - param( - [Parameter(Mandatory=$true, Position=1)] - [ValidateNotNullOrEmpty()] - [string]$server, - [Parameter(Mandatory=$true, Position=2)] - [string]$instance = '', - [Parameter(Mandatory=$true, Position=3)] - [ValidateNotNullOrEmpty()] - [string]$destination - ) - - # Make up the target in case we have a default instance - if(($instance -eq '') -or (($instance).ToUpper() -eq 'MSSQLSERVER')) - { - $target = $server - } - else - { - $target = "$server\$instance" - } - - Write-Host "Setting up components for $target" -ForegroundColor Green - - # Create timestamp - $timestamp = Get-Date -f yyyyddMMHHmmss - - # Set the destination - $outputFile = $destination + '\MachineInformation_' + ($server).ToUpper() + '_' + ($instance).ToUpper() + '_' + $timestamp + '.xlsx' - - # Set the position of the first row - $rowPosition = 1 - - # Set the number of the tab - $tabPosition = 1 - - # Create a new Excel package - [OfficeOpenXml.ExcelPackage]$excel = New-OOXMLPackage -author "Sander Stad" -title "Machine Information $target" - - # Create a new workbook - [OfficeOpenXml.ExcelWorkbook]$book = $excel | Get-OOXMLWorkbook - - # Set the different styles - $styleGreen = New-OOXMLStyleSheet -WorkBook $book -Name "GirlStyle" -Bold -ForeGroundColor Black -FillType Solid -BackGroundColor Green -borderStyle Thin -BorderColor Black -NFormat "#,##0.00" - $styleRed = New-OOXMLStyleSheet -WorkBook $book -Name "BoyStyle" -Bold -ForeGroundColor Black -FillType Solid -BackGroundColor Red -borderStyle Thin -BorderColor Black -NFormat "#,##0.00" - $styleHeader = New-OOXMLStyleSheet -WorkBook $book -Name "HeaderStyle" -Bold -ForeGroundColor White -BackGroundColor Black -Size 12 -HAlign Center -VAlign Center -FillType Solid - $styleHeader2 = New-OOXMLStyleSheet -WorkBook $book -Name "HeaderStyle2" -Bold -ForeGroundColor White -BackGroundColor Black -Size 11 -HAlign Left -VAlign Center -FillType Solid - $styleNormal = New-OOXMLStyleSheet -WorkBook $book -Name "NormalStyle" -borderStyle Thin -BorderColor Black - $styleNumber = New-OOXMLStyleSheet -WorkBook $book -Name "Float" -NFormat "#,##0.00" - $styleConditionalFormatting = New-OOXMLStyleSheet -WorkBook $book -Name "ConditionalF" -Bold -ForeGroundColor Black -FillType Solid -BackGroundColor Orange -borderStyle Double -BorderColor Blue -NFormat "#,##0.0000" -Italic - - Write-Host "Start retrieving data for $target" -ForegroundColor Green - - ####################################################################################################### - # SYSTEM INFORMATION - ####################################################################################################### - - # Add a worksheet - $excel | Add-OOXMLWorksheet -WorkSheetName "System Information" - # Set the worksheet as the first sheet - $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition - - Write-Host " - Retrieving data for System Information" -ForegroundColor Green - - # Get the data from the function - $data = $null - $data = Get-HostSystemInformation -hst $server - - if($data.Name.Length -ge 1) - { - - # Fill the sheet with data from the system function - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Server Name" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.Name -StyleSheet $styleNormal | Out-Null - - $sheet.Column(1).Width = 30 - $sheet.Column(2).Width = 40 - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Domain" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.Domain -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Manufacturer" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.Manufacturer -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Model" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.Model -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Number of logical processors" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.NumberOfLogicalProcessors -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Number of processors" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.NumberOfProcessors -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Last load info" -StyleSheet $styleHeader2 | Out-Null - if([string]::IsNullOrEmpty($data.LastLoadInfo)) - { - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value '' -StyleSheet $styleNormal | Out-Null - } - else - { - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.LastLoadInfo -StyleSheet $styleNormal | Out-Null - } - - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Total physical memory MB" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.TotalPhysicalMemoryMB -StyleSheet $styleNormal | Out-Null - } - else - { - Write-Host "No records fount for System Information" -ForegroundColor Red - } - - ####################################################################################################### - ####################################################################################################### - - - ####################################################################################################### - # OPERATING SYSTEM INFORMATION - ####################################################################################################### - - # Reset row positions - $rowPosition = 1 - - # Set the tabposition - $tabPosition++ - - # Add a worksheet - $excel | Add-OOXMLWorksheet -WorkSheetName "Operating System" - # Set the worksheet as the first sheet - $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition - - Write-Host " - Retrieving data for Operating System" -ForegroundColor Green - - # Get the data from the function - $data = $null - $data = Get-HostOperatingSystem -hst $server - - if($data.OSArchitecture.Length -ge 1) - { - - # Fill the sheet with data from the hardware function - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "OS Architecture" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.OSArchitecture -StyleSheet $styleNormal | Out-Null - - $sheet.Column(1).Width = 30 - $sheet.Column(2).Width = 40 - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "OS Language" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.OSLanguage -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "OS ProductSuite" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.OSProductSuite -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "OS Type" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.OSType -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "BuildType" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.BuildType -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Version" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.Version -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Windows Directory" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.WindowsDirectory -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Free Physical Memory MB" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.FreePhysicalMemoryMB -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Free Space In Paging Files MB" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.FreeSpaceInPagingFilesMB -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Free Virtua lMemory MB" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.FreeVirtualMemoryMB -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Service Pack Major Version" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.ServicePackMajorVersion -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Service Pack Minor Version" -StyleSheet $styleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.ServicePackMinorVersion -StyleSheet $styleNormal | Out-Null - } - else - { - Write-Host "No records fount for Operating System" -ForegroundColor Red - } - - ####################################################################################################### - ####################################################################################################### - - - ####################################################################################################### - # SQL SERVER SERVICES - ####################################################################################################### - - # Reset row positions - $rowPosition = 1 - - # Set the tabposition - $tabPosition++ - - # Add a worksheet - $excel | Add-OOXMLWorksheet -WorkSheetName "SQL Services" #-AutofilterRange "A2:G2" - # Set the worksheet as the first sheet - $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition - - Write-Host " - Retrieving data for SQL Server Services" -ForegroundColor Green - - # Get the data from the function - $services = Get-HostSQLServerServices -hst $server - - if($services.Count -ge 1) - { - - # Create the header - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "System Name" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(1).Width = 22 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "Display Name" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(2).Width = 32 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "Service Name" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(3).Width = 22 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "State" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(4).Width = 22 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 5 -value "Status" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(5).Width = 22 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 6 -value "Start Mode" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(6).Width = 22 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 7 -value "Start Name" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(7).Width = 32 - - $rowPosition++ - - foreach($service in $services) - { - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $service.SystemName -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $service.DisplayName -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $service.Name -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $service.State -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 5 -value $service.Status -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 6 -value $service.StartMode -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 7 -value $service.StartName -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - } - } - else - { - Write-Host "No records fount for SQL Services" -ForegroundColor Red - } - - ####################################################################################################### - ####################################################################################################### - - ####################################################################################################### - # DISK INFORMATION - ####################################################################################################### - - # Reset row positions - $rowPosition = 1 - - # Set the tabposition - $tabPosition++ - - # Add a worksheet - $excel | Add-OOXMLWorksheet -WorkSheetName "Disk Information" #-AutofilterRange "A2:G2" - # Set the worksheet as the first sheet - $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition - - Write-Host " - Retrieving data for Disk Information" -ForegroundColor Green - - $disks = Get-HostHarddisk -hst $server - - if($disks.Count -ge 1) - { - - # Create the header - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "Disk" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(1).Width = 22 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "Volume Name" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(2).Width = 32 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "Free Space MB" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(3).Width = 22 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "Size MB" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(4).Width = 22 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 5 -value "Percentage Used" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(5).Width = 22 - - $rowPosition++ - - foreach($disk in $disks) - { - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $disk.Disk -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $disk.VolumeName -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $disk.FreeSpaceMB -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $disk.SizeMB -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 5 -value $disk.PercentageUsed -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - } - } - else - { - Write-Host "No records fount for Disk Information" -ForegroundColor Red - } - - ####################################################################################################### - ####################################################################################################### - - ####################################################################################################### - # SQL CONFIGURATION - ####################################################################################################### - - # Reset row positions - $rowPosition = 1 - - # Set the tabposition - $tabPosition++ - - # Add a worksheet - $excel | Add-OOXMLWorksheet -WorkSheetName "Instance Configuration" #-AutofilterRange "A2:G2" - # Set the worksheet as the first sheet - $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition - - Write-Host " - Retrieving data for SQL Configuration" -ForegroundColor Green - - $configurations = Get-SQLConfiguration -inst $target | Sort DisplayName - - if($configurations.Count -ge 1) - { - - # Create the header - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "Display Name" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(1).Width = 40 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "Number" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(2).Width = 32 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "Minimum" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(3).Width = 22 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "Maximum" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(4).Width = 22 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 5 -value "Is Dynamic" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(5).Width = 22 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 6 -value "Is Advanced" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(6).Width = 22 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 7 -value "Description" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(7).Width = 50 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 8 -value "Run Value" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(8).Width = 22 - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 9 -value "Config Value" -StyleSheet $StyleHeader2 | Out-Null - $sheet.Column(9).Width = 22 - - $rowPosition++ - - foreach($config in $configurations) - { - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $config.DisplayName -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $config.Number -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $config.Minimum -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $config.Maximum -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 5 -value $config.IsDynamic -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 6 -value $config.IsAdvanced -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 7 -value $config.Description -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 8 -value $config.RunValue -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 9 -value $config.ConfigValue -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - } - } - else - { - Write-Host "No records fount for Instance Configuration" -ForegroundColor Red - } - - ####################################################################################################### - ####################################################################################################### - - ####################################################################################################### - # DATABASES - ####################################################################################################### - - # Reset row positions - $rowPosition = 1 - - # Set the tabposition - $tabPosition++ - - # Add a worksheet - $excel | Add-OOXMLWorksheet -WorkSheetName "Databases" #-AutofilterRange "A2:G2" - # Set the worksheet as the first sheet - $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition - - Write-Host " - Retrieving data for Databases" -ForegroundColor Green - - $databases = Get-SQLDatabases -inst $target | Sort Name - - if($databases.Count -ge 1) - { - - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "Name" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "ID" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "AutoClose" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "AutoCreateStatisticsEnabled" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 5 -value "AutoShrink" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 6 -value "AutoUpdateStatisticsAsync" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 7 -value "AutoUpdateStatisticsEnabled" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 8 -value "AvailabilityGroupName" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 9 -value "CloseCursorsOnCommitEnabled" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 10 -value "Collation" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 11 -value "CompatibilityLevel" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 12 -value "CreateDate" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 13 -value "DataSpaceUsage" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 14 -value "EncryptionEnabled" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 15 -value "IndexSpaceUsage" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 16 -value "IsDbSecurityAdmin" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 17 -value "IsFullTextEnabled" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 18 -value "IsManagementDataWarehouse" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 19 -value "IsMirroringEnabled" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 20 -value "LastBackupDate" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 21 -value "LastDifferentialBackupDate" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 22 -value "LastLogBackupDate" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 23 -value "Owner" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 24 -value "PageVerify" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 25 -value "PrimaryFilePath" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 26 -value "ReadOnly" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 27 -value "RecoveryModel" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 28 -value "RecursiveTriggersEnabled" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 29 -value "Size" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 30 -value "SnapshotIsolationState" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 31 -value "SpaceAvailable" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 32 -value "Status" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 33 -value "TargetRecoveryTime" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 34 -value "Trustworthy" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 35 -value "UserAccess" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 36 -value "UserName" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 37 -value "Version" -StyleSheet $StyleHeader2 | Out-Null - - $rowPosition++ - - foreach($db in $databases) - { - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $db.Name -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $db.ID -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $db.AutoClose -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $db.AutoCreateStatisticsEnabled -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 5 -value $db.AutoShrink -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 6 -value $db.AutoUpdateStatisticsAsync -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 7 -value $db.AutoUpdateStatisticsEnabled -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 8 -value $db.AvailabilityGroupName -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 9 -value $db.CloseCursorsOnCommitEnabled -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 10 -value $db.Collation -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 11 -value $db.CompatibilityLevel -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 12 -value $db.CreateDate -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 13 -value $db.DataSpaceUsage -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 14 -value $db.EncryptionEnabled -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 15 -value $db.IndexSpaceUsage -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 16 -value $db.IsDbSecurityAdmin -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 17 -value $db.IsFullTextEnabled -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 18 -value $db.IsManagementDataWarehouse -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 19 -value $db.IsMirroringEnabled -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 20 -value $db.LastBackupDate -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 21 -value $db.LastDifferentialBackupDate -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 22 -value $db.LastLogBackupDate -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 23 -value $db.Owner -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 24 -value $db.PageVerify -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 25 -value $db.PrimaryFilePath -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 26 -value $db.ReadOnly -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 27 -value $db.RecoveryModel -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 28 -value $db.RecursiveTriggersEnabled -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 29 -value $db.Size -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 30 -value $db.SnapshotIsolationState -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 31 -value $db.SpaceAvailable -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 32 -value $db.Status -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 33 -value $db.TargetRecoveryTime -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 34 -value $db.Trustworthy -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 35 -value $db.UserAccess -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 36 -value $db.UserName -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 7 -value $db.Version -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - } - } - else - { - Write-Host "No records fount for Databases" -ForegroundColor Red - } - - ####################################################################################################### - ####################################################################################################### - - ####################################################################################################### - # DATABASE FILES - ####################################################################################################### - - # Reset row positions - $rowPosition = 1 - - # Set the tabposition - $tabPosition++ - - # Add a worksheet - $excel | Add-OOXMLWorksheet -WorkSheetName "Database Files" #-AutofilterRange "A2:G2" - # Set the worksheet as the first sheet - $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition - - Write-Host " - Retrieving data for Database Files" -ForegroundColor Green - - $databaseFiles = Get-SQLDatabaseFiles -inst $target | Sort DatabaseName, FileType - - if($databaseFiles.Count -ge 1) - { - - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "Database Name" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "Name" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "File Type" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "Directory" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 5 -value "File Name" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 6 -value "Growth" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 7 -value "Growth Type" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 8 -value "Size" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 9 -value "Used Space" -StyleSheet $StyleHeader2 | Out-Null - - $rowPosition++ - - foreach($dbFile in $databaseFiles) - { - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $dbFile.DatabaseName -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $dbFile.Name -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $dbFile.FileType -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $dbFile.Directory -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 5 -value $dbFile.FileName -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 6 -value $dbFile.Growth -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 7 -value $dbFile.GrowthType -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 8 -value $dbFile.Size -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 9 -value $dbFile.UsedSpace -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - } - } - else - { - Write-Host "No records fount for Database Files" -ForegroundColor Red - } - - ####################################################################################################### - ####################################################################################################### - - ####################################################################################################### - # DATABASE USERS - ####################################################################################################### - - # Reset row positions - $rowPosition = 1 - - # Set the tabposition - $tabPosition++ - - # Add a worksheet - $excel | Add-OOXMLWorksheet -WorkSheetName "Database Users" #-AutofilterRange "A2:G2" - # Set the worksheet as the first sheet - $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition - - Write-Host " - Retrieving data for Database Users" -ForegroundColor Green - - $users = Get-SQLDatabaseUsers -inst $target | Sort Parent,Name - - if($users.Count -ge 1) - { - - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "Parent" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "Name" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "AsymmetricKey" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "AuthenticationType" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 5 -value "Certificate" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 6 -value "CreateDate" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 7 -value "DateLastModified" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 8 -value "DefaultSchema" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 9 -value "HasDBAccess" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 10 -value "ID" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 11 -value "IsSystemObject" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 12 -value "Login" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 13 -value "LoginType" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 14 -value "UserType" -StyleSheet $StyleHeader2 | Out-Null - - $rowPosition++ - - foreach($user in $users) - { - - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $user.Parent -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $user.Name -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $user.AsymmetricKey -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $user.AuthenticationType -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 5 -value $user.Certificate -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 6 -value $user.CreateDate -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 7 -value $user.DateLastModified -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 8 -value $user.DefaultSchema -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 9 -value $user.HasDBAccess -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 10 -value $user.ID -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 11 -value $user.IsSystemObject -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 12 -value $user.Login -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 13 -value $user.LoginType -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 14 -value $user.UserType -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - - } - } - else - { - Write-Host "No records fount for Database Users" -ForegroundColor Red - } - - ####################################################################################################### - ####################################################################################################### - - ####################################################################################################### - # DATABASE PRIVILEGES - ####################################################################################################### - - # Reset row positions - $rowPosition = 1 - - # Set the tabposition - $tabPosition++ - - # Add a worksheet - $excel | Add-OOXMLWorksheet -WorkSheetName "Database Privileges" #-AutofilterRange "A2:G2" - # Set the worksheet as the first sheet - $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition - - Write-Host " - Retrieving data for Database Privileges" -ForegroundColor Green - - $data = Get-SQLDatabasePrivileges -inst $target | Sort DatabaseName, LoginName - - if($data.Count -ge 1) - { - - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "Database Name" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "User Name" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "User Type" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "Database Roles" -StyleSheet $StyleHeader2 | Out-Null - - $rowPosition++ - - foreach($dbPriv in $data) - { - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $dbPriv.DatabaseName -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $dbPriv.UserName -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $dbPriv.UserType -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $dbPriv.DatabaseRoles -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - } - } - else - { - Write-Host "No records fount for Database Privileges" -ForegroundColor Red - } - - ####################################################################################################### - ####################################################################################################### - - ####################################################################################################### - # SERVER PRIVILEGES - ####################################################################################################### - - # Reset row positions - $rowPosition = 1 - - # Set the tabposition - $tabPosition++ - - # Add a worksheet - $excel | Add-OOXMLWorksheet -WorkSheetName "Login Privileges" #-AutofilterRange "A2:G2" - # Set the worksheet as the first sheet - $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition - - Write-Host " - Retrieving data for SQL Server Privileges" -ForegroundColor Green - - $privileges = Get-SQLServerPrivileges -inst $target | Sort Name - - if($privileges.Count -ge 1) - { - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "Name" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "Login Type" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "Create Date" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "Date Last Modified" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 5 -value "Is Disabled" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 6 -value "Serve rRoles" -StyleSheet $StyleHeader2 | Out-Null - - $rowPosition++ - - foreach($priv in $privileges) - { - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $priv.Name -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $priv.LoginType -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $priv.CreateDate -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $priv.DateLastModified -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 5 -value $priv.IsDisabled -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 6 -value $priv.ServerRoles -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - } - } - else - { - Write-Host "No records fount for SQL Server Privileges" -ForegroundColor Red - } - - ####################################################################################################### - ####################################################################################################### - - ####################################################################################################### - # AGENT JOBS - ####################################################################################################### - - # Reset row positions - $rowPosition = 1 - - # Set the tabposition - $tabPosition++ - - # Add a worksheet - $excel | Add-OOXMLWorksheet -WorkSheetName "Agent Jobs" #-AutofilterRange "A2:G2" - # Set the worksheet as the first sheet - $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition - - Write-Host " - Retrieving data for Agent Jobs" -ForegroundColor Green - - $jobs = Get-SQLAgentJobs -inst $target | Sort Name - - if($jobs.Count -ge 1) - { - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "Name" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "Description" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "Parent" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "Category" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 5 -value "CategoryType" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 6 -value "DateCreated" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 7 -value "DateLastModified" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 8 -value "DeleteLevel" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 9 -value "EmailLevel" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 10 -value "EventLogLevel" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 11 -value "HasSchedule" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 12 -value "HasServer" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 13 -value "HasStep" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 14 -value "IsEnabled" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 15 -value "JobID" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 16 -value "JobType" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 17 -value "LastRunDate" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 18 -value "LastRunOutcome" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 19 -value "NetSendLevel" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 20 -value "NextRunDate" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 21 -value "NextRunScheduleID" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 22 -value "OperatorToEmail" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 23 -value "OperatorToNetSend" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 24 -value "OperatorToPage" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 25 -value "OriginatingServer" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 26 -value "OwnerLoginName" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 27 -value "PageLevel" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 28 -value "StartStepID" -StyleSheet $StyleHeader2 | Out-Null - $sheet | Set-OOXMLRangeValue -row $RowPosition -col 29 -value "VersionNumber" -StyleSheet $StyleHeader2 | Out-Null - - $rowPosition++ - - foreach($job in $jobs) - { - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $job.Name -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $job.Description -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $job.Parent -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $job.Category -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 5 -value $job.CategoryType -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 6 -value $job.DateCreated -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 7 -value $job.DateLastModified -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 8 -value $job.DeleteLevel -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 9 -value $job.EmailLevel -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 10 -value $job.EventLogLevel -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 11 -value $job.HasSchedule -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 12 -value $job.HasServer -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 13 -value $job.HasStep -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 14 -value $job.IsEnabled -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 15 -value $job.JobID -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 16 -value $job.JobType -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 17 -value $job.LastRunDate -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 18 -value $job.LastRunOutcome -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 19 -value $job.NetSendLevel -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 20 -value $job.NextRunDate -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 21 -value $job.NextRunScheduleID -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 22 -value $job.OperatorToEmail -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 23 -value $job.OperatorToNetSend -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 24 -value $job.OperatorToPage -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 25 -value $job.OriginatingServer -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 26 -value $job.OwnerLoginName -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 27 -value $job.PageLevel -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 28 -value $job.StartStepID -StyleSheet $styleNormal | Out-Null - $sheet | Set-OOXMLRangeValue -row $rowPosition -col 29 -value $job.VersionNumber -StyleSheet $styleNormal | Out-Null - - $rowPosition++ - } - } - else - { - Write-Host "No records fount for Agent Jobs" -ForegroundColor Red - } - - ####################################################################################################### - ####################################################################################################### - - $excel | Save-OOXMLPackage -FileFullPath $outputFile -Dispose -} - -$items = Import-Csv "c:\sqlserverinstances.csv" -Delimiter ";" - -foreach($item in $items) -{ - if(Test-Connection $item.ComputerName) - { - Generate-Documentation -server $item.ComputerName -instance $item.SQLServerInstanceName -destination 'H:\Mijn documenten\_Overdracht\Databasebeheer\SQL Server Inventarisatie' - } -} +<#============================================================================ + File: Get-MachineInformationExcel.ps + + Summary: Get machine information like memory, CPU and disk configuration + and output it to Excel + +------------------------------------------------------------------------------ + Written by Sander Stad, SQLStad.nl + + (c) 2015, SQLStad.nl. All rights reserved. + + For more scripts and sample code, check out http://www.SQLStad.nl + + You may alter this code for your own *non-commercial* purposes (e.g. in a + for-sale commercial tool). Use in your own environment is encouraged. + You may republish altered code as long as you include this copyright and + give due credit, but you must obtain prior permission before blogging + this code. + + THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF + ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED + TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A + PARTICULAR PURPOSE. +============================================================================#> + +# Import the Excel library +Import-Module ExcelPSLib -Force +Import-Module PSSQLLib -Force + +CLS + +function Generate-Documentation() +{ + param( + [Parameter(Mandatory=$true, Position=1)] + [ValidateNotNullOrEmpty()] + [string]$server, + [Parameter(Mandatory=$true, Position=2)] + [string]$instance = '', + [Parameter(Mandatory=$true, Position=3)] + [ValidateNotNullOrEmpty()] + [string]$destination + ) + + # Make up the target in case we have a default instance + if(($instance -eq '') -or (($instance).ToUpper() -eq 'MSSQLSERVER')) + { + $target = $server + } + else + { + $target = "$server\$instance" + } + + Write-Host "Setting up components for $target" -ForegroundColor Green + + # Create timestamp + $timestamp = Get-Date -f yyyyddMMHHmmss + + # Set the destination + $outputFile = $destination + '\MachineInformation_' + ($server).ToUpper() + '_' + ($instance).ToUpper() + '_' + $timestamp + '.xlsx' + + # Set the position of the first row + $rowPosition = 1 + + # Set the number of the tab + $tabPosition = 1 + + # Create a new Excel package + [OfficeOpenXml.ExcelPackage]$excel = New-OOXMLPackage -author "Sander Stad" -title "Machine Information $target" + + # Create a new workbook + [OfficeOpenXml.ExcelWorkbook]$book = $excel | Get-OOXMLWorkbook + + # Set the different styles + $styleGreen = New-OOXMLStyleSheet -WorkBook $book -Name "GirlStyle" -Bold -ForeGroundColor Black -FillType Solid -BackGroundColor Green -borderStyle Thin -BorderColor Black -NFormat "#,##0.00" + $styleRed = New-OOXMLStyleSheet -WorkBook $book -Name "BoyStyle" -Bold -ForeGroundColor Black -FillType Solid -BackGroundColor Red -borderStyle Thin -BorderColor Black -NFormat "#,##0.00" + $styleHeader = New-OOXMLStyleSheet -WorkBook $book -Name "HeaderStyle" -Bold -ForeGroundColor White -BackGroundColor Black -Size 12 -HAlign Center -VAlign Center -FillType Solid + $styleHeader2 = New-OOXMLStyleSheet -WorkBook $book -Name "HeaderStyle2" -Bold -ForeGroundColor White -BackGroundColor Black -Size 11 -HAlign Left -VAlign Center -FillType Solid + $styleNormal = New-OOXMLStyleSheet -WorkBook $book -Name "NormalStyle" -borderStyle Thin -BorderColor Black + $styleNumber = New-OOXMLStyleSheet -WorkBook $book -Name "Float" -NFormat "#,##0.00" + $styleConditionalFormatting = New-OOXMLStyleSheet -WorkBook $book -Name "ConditionalF" -Bold -ForeGroundColor Black -FillType Solid -BackGroundColor Orange -borderStyle Double -BorderColor Blue -NFormat "#,##0.0000" -Italic + + Write-Host "Start retrieving data for $target" -ForegroundColor Green + + ####################################################################################################### + # SYSTEM INFORMATION + ####################################################################################################### + + # Add a worksheet + $excel | Add-OOXMLWorksheet -WorkSheetName "System Information" + # Set the worksheet as the first sheet + $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition + + Write-Host " - Retrieving data for System Information" -ForegroundColor Green + + # Get the data from the function + $data = $null + $data = Get-HostSystemInformation -hst $server + + if($data.Name.Length -ge 1) + { + + # Fill the sheet with data from the system function + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Server Name" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.Name -StyleSheet $styleNormal | Out-Null + + $sheet.Column(1).Width = 30 + $sheet.Column(2).Width = 40 + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Domain" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.Domain -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Manufacturer" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.Manufacturer -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Model" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.Model -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Number of logical processors" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.NumberOfLogicalProcessors -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Number of processors" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.NumberOfProcessors -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Last load info" -StyleSheet $styleHeader2 | Out-Null + if([string]::IsNullOrEmpty($data.LastLoadInfo)) + { + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value '' -StyleSheet $styleNormal | Out-Null + } + else + { + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.LastLoadInfo -StyleSheet $styleNormal | Out-Null + } + + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Total physical memory MB" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.TotalPhysicalMemoryMB -StyleSheet $styleNormal | Out-Null + } + else + { + Write-Host "No records fount for System Information" -ForegroundColor Red + } + + ####################################################################################################### + ####################################################################################################### + + + ####################################################################################################### + # OPERATING SYSTEM INFORMATION + ####################################################################################################### + + # Reset row positions + $rowPosition = 1 + + # Set the tabposition + $tabPosition++ + + # Add a worksheet + $excel | Add-OOXMLWorksheet -WorkSheetName "Operating System" + # Set the worksheet as the first sheet + $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition + + Write-Host " - Retrieving data for Operating System" -ForegroundColor Green + + # Get the data from the function + $data = $null + $data = Get-HostOperatingSystem -hst $server + + if($data.OSArchitecture.Length -ge 1) + { + + # Fill the sheet with data from the hardware function + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "OS Architecture" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.OSArchitecture -StyleSheet $styleNormal | Out-Null + + $sheet.Column(1).Width = 30 + $sheet.Column(2).Width = 40 + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "OS Language" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.OSLanguage -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "OS ProductSuite" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.OSProductSuite -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "OS Type" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.OSType -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "BuildType" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.BuildType -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Version" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.Version -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Windows Directory" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.WindowsDirectory -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Free Physical Memory MB" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.FreePhysicalMemoryMB -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Free Space In Paging Files MB" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.FreeSpaceInPagingFilesMB -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Free Virtua lMemory MB" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.FreeVirtualMemoryMB -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Service Pack Major Version" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.ServicePackMajorVersion -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value "Service Pack Minor Version" -StyleSheet $styleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $data.ServicePackMinorVersion -StyleSheet $styleNormal | Out-Null + } + else + { + Write-Host "No records fount for Operating System" -ForegroundColor Red + } + + ####################################################################################################### + ####################################################################################################### + + + ####################################################################################################### + # SQL SERVER SERVICES + ####################################################################################################### + + # Reset row positions + $rowPosition = 1 + + # Set the tabposition + $tabPosition++ + + # Add a worksheet + $excel | Add-OOXMLWorksheet -WorkSheetName "SQL Services" #-AutofilterRange "A2:G2" + # Set the worksheet as the first sheet + $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition + + Write-Host " - Retrieving data for SQL Server Services" -ForegroundColor Green + + # Get the data from the function + $services = Get-HostSQLServerServices -hst $server + + if($services.Count -ge 1) + { + + # Create the header + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "System Name" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(1).Width = 22 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "Display Name" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(2).Width = 32 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "Service Name" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(3).Width = 22 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "State" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(4).Width = 22 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 5 -value "Status" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(5).Width = 22 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 6 -value "Start Mode" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(6).Width = 22 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 7 -value "Start Name" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(7).Width = 32 + + $rowPosition++ + + foreach($service in $services) + { + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $service.SystemName -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $service.DisplayName -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $service.Name -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $service.State -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 5 -value $service.Status -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 6 -value $service.StartMode -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 7 -value $service.StartName -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + } + } + else + { + Write-Host "No records fount for SQL Services" -ForegroundColor Red + } + + ####################################################################################################### + ####################################################################################################### + + ####################################################################################################### + # DISK INFORMATION + ####################################################################################################### + + # Reset row positions + $rowPosition = 1 + + # Set the tabposition + $tabPosition++ + + # Add a worksheet + $excel | Add-OOXMLWorksheet -WorkSheetName "Disk Information" #-AutofilterRange "A2:G2" + # Set the worksheet as the first sheet + $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition + + Write-Host " - Retrieving data for Disk Information" -ForegroundColor Green + + $disks = Get-HostHarddisk -hst $server + + if($disks.Count -ge 1) + { + + # Create the header + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "Disk" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(1).Width = 22 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "Volume Name" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(2).Width = 32 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "Free Space MB" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(3).Width = 22 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "Size MB" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(4).Width = 22 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 5 -value "Percentage Used" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(5).Width = 22 + + $rowPosition++ + + foreach($disk in $disks) + { + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $disk.Disk -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $disk.VolumeName -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $disk.FreeSpaceMB -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $disk.SizeMB -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 5 -value $disk.PercentageUsed -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + } + } + else + { + Write-Host "No records fount for Disk Information" -ForegroundColor Red + } + + ####################################################################################################### + ####################################################################################################### + + ####################################################################################################### + # SQL CONFIGURATION + ####################################################################################################### + + # Reset row positions + $rowPosition = 1 + + # Set the tabposition + $tabPosition++ + + # Add a worksheet + $excel | Add-OOXMLWorksheet -WorkSheetName "Instance Configuration" #-AutofilterRange "A2:G2" + # Set the worksheet as the first sheet + $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition + + Write-Host " - Retrieving data for SQL Configuration" -ForegroundColor Green + + $configurations = Get-SQLConfiguration -inst $target | Sort DisplayName + + if($configurations.Count -ge 1) + { + + # Create the header + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "Display Name" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(1).Width = 40 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "Number" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(2).Width = 32 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "Minimum" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(3).Width = 22 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "Maximum" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(4).Width = 22 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 5 -value "Is Dynamic" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(5).Width = 22 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 6 -value "Is Advanced" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(6).Width = 22 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 7 -value "Description" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(7).Width = 50 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 8 -value "Run Value" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(8).Width = 22 + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 9 -value "Config Value" -StyleSheet $StyleHeader2 | Out-Null + $sheet.Column(9).Width = 22 + + $rowPosition++ + + foreach($config in $configurations) + { + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $config.DisplayName -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $config.Number -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $config.Minimum -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $config.Maximum -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 5 -value $config.IsDynamic -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 6 -value $config.IsAdvanced -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 7 -value $config.Description -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 8 -value $config.RunValue -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 9 -value $config.ConfigValue -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + } + } + else + { + Write-Host "No records fount for Instance Configuration" -ForegroundColor Red + } + + ####################################################################################################### + ####################################################################################################### + + ####################################################################################################### + # DATABASES + ####################################################################################################### + + # Reset row positions + $rowPosition = 1 + + # Set the tabposition + $tabPosition++ + + # Add a worksheet + $excel | Add-OOXMLWorksheet -WorkSheetName "Databases" #-AutofilterRange "A2:G2" + # Set the worksheet as the first sheet + $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition + + Write-Host " - Retrieving data for Databases" -ForegroundColor Green + + $databases = Get-SQLDatabases -inst $target | Sort Name + + if($databases.Count -ge 1) + { + + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "Name" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "ID" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "AutoClose" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "AutoCreateStatisticsEnabled" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 5 -value "AutoShrink" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 6 -value "AutoUpdateStatisticsAsync" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 7 -value "AutoUpdateStatisticsEnabled" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 8 -value "AvailabilityGroupName" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 9 -value "CloseCursorsOnCommitEnabled" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 10 -value "Collation" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 11 -value "CompatibilityLevel" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 12 -value "CreateDate" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 13 -value "DataSpaceUsage" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 14 -value "EncryptionEnabled" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 15 -value "IndexSpaceUsage" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 16 -value "IsDbSecurityAdmin" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 17 -value "IsFullTextEnabled" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 18 -value "IsManagementDataWarehouse" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 19 -value "IsMirroringEnabled" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 20 -value "LastBackupDate" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 21 -value "LastDifferentialBackupDate" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 22 -value "LastLogBackupDate" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 23 -value "Owner" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 24 -value "PageVerify" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 25 -value "PrimaryFilePath" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 26 -value "ReadOnly" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 27 -value "RecoveryModel" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 28 -value "RecursiveTriggersEnabled" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 29 -value "Size" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 30 -value "SnapshotIsolationState" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 31 -value "SpaceAvailable" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 32 -value "Status" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 33 -value "TargetRecoveryTime" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 34 -value "Trustworthy" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 35 -value "UserAccess" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 36 -value "UserName" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 37 -value "Version" -StyleSheet $StyleHeader2 | Out-Null + + $rowPosition++ + + foreach($db in $databases) + { + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $db.Name -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $db.ID -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $db.AutoClose -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $db.AutoCreateStatisticsEnabled -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 5 -value $db.AutoShrink -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 6 -value $db.AutoUpdateStatisticsAsync -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 7 -value $db.AutoUpdateStatisticsEnabled -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 8 -value $db.AvailabilityGroupName -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 9 -value $db.CloseCursorsOnCommitEnabled -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 10 -value $db.Collation -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 11 -value $db.CompatibilityLevel -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 12 -value $db.CreateDate -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 13 -value $db.DataSpaceUsage -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 14 -value $db.EncryptionEnabled -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 15 -value $db.IndexSpaceUsage -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 16 -value $db.IsDbSecurityAdmin -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 17 -value $db.IsFullTextEnabled -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 18 -value $db.IsManagementDataWarehouse -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 19 -value $db.IsMirroringEnabled -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 20 -value $db.LastBackupDate -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 21 -value $db.LastDifferentialBackupDate -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 22 -value $db.LastLogBackupDate -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 23 -value $db.Owner -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 24 -value $db.PageVerify -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 25 -value $db.PrimaryFilePath -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 26 -value $db.ReadOnly -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 27 -value $db.RecoveryModel -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 28 -value $db.RecursiveTriggersEnabled -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 29 -value $db.Size -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 30 -value $db.SnapshotIsolationState -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 31 -value $db.SpaceAvailable -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 32 -value $db.Status -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 33 -value $db.TargetRecoveryTime -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 34 -value $db.Trustworthy -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 35 -value $db.UserAccess -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 36 -value $db.UserName -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 7 -value $db.Version -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + } + } + else + { + Write-Host "No records fount for Databases" -ForegroundColor Red + } + + ####################################################################################################### + ####################################################################################################### + + ####################################################################################################### + # DATABASE FILES + ####################################################################################################### + + # Reset row positions + $rowPosition = 1 + + # Set the tabposition + $tabPosition++ + + # Add a worksheet + $excel | Add-OOXMLWorksheet -WorkSheetName "Database Files" #-AutofilterRange "A2:G2" + # Set the worksheet as the first sheet + $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition + + Write-Host " - Retrieving data for Database Files" -ForegroundColor Green + + $databaseFiles = Get-SQLDatabaseFiles -inst $target | Sort DatabaseName, FileType + + if($databaseFiles.Count -ge 1) + { + + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "Database Name" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "Name" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "File Type" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "Directory" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 5 -value "File Name" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 6 -value "Growth" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 7 -value "Growth Type" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 8 -value "Size" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 9 -value "Used Space" -StyleSheet $StyleHeader2 | Out-Null + + $rowPosition++ + + foreach($dbFile in $databaseFiles) + { + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $dbFile.DatabaseName -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $dbFile.Name -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $dbFile.FileType -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $dbFile.Directory -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 5 -value $dbFile.FileName -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 6 -value $dbFile.Growth -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 7 -value $dbFile.GrowthType -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 8 -value $dbFile.Size -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 9 -value $dbFile.UsedSpace -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + } + } + else + { + Write-Host "No records fount for Database Files" -ForegroundColor Red + } + + ####################################################################################################### + ####################################################################################################### + + ####################################################################################################### + # DATABASE USERS + ####################################################################################################### + + # Reset row positions + $rowPosition = 1 + + # Set the tabposition + $tabPosition++ + + # Add a worksheet + $excel | Add-OOXMLWorksheet -WorkSheetName "Database Users" #-AutofilterRange "A2:G2" + # Set the worksheet as the first sheet + $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition + + Write-Host " - Retrieving data for Database Users" -ForegroundColor Green + + $users = Get-SQLDatabaseUsers -inst $target | Sort Parent,Name + + if($users.Count -ge 1) + { + + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "Parent" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "Name" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "AsymmetricKey" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "AuthenticationType" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 5 -value "Certificate" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 6 -value "CreateDate" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 7 -value "DateLastModified" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 8 -value "DefaultSchema" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 9 -value "HasDBAccess" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 10 -value "ID" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 11 -value "IsSystemObject" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 12 -value "Login" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 13 -value "LoginType" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 14 -value "UserType" -StyleSheet $StyleHeader2 | Out-Null + + $rowPosition++ + + foreach($user in $users) + { + + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $user.Parent -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $user.Name -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $user.AsymmetricKey -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $user.AuthenticationType -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 5 -value $user.Certificate -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 6 -value $user.CreateDate -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 7 -value $user.DateLastModified -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 8 -value $user.DefaultSchema -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 9 -value $user.HasDBAccess -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 10 -value $user.ID -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 11 -value $user.IsSystemObject -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 12 -value $user.Login -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 13 -value $user.LoginType -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 14 -value $user.UserType -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + + } + } + else + { + Write-Host "No records fount for Database Users" -ForegroundColor Red + } + + ####################################################################################################### + ####################################################################################################### + + ####################################################################################################### + # DATABASE PRIVILEGES + ####################################################################################################### + + # Reset row positions + $rowPosition = 1 + + # Set the tabposition + $tabPosition++ + + # Add a worksheet + $excel | Add-OOXMLWorksheet -WorkSheetName "Database Privileges" #-AutofilterRange "A2:G2" + # Set the worksheet as the first sheet + $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition + + Write-Host " - Retrieving data for Database Privileges" -ForegroundColor Green + + $data = Get-SQLDatabasePrivileges -inst $target | Sort DatabaseName, LoginName + + if($data.Count -ge 1) + { + + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "Database Name" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "User Name" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "User Type" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "Database Roles" -StyleSheet $StyleHeader2 | Out-Null + + $rowPosition++ + + foreach($dbPriv in $data) + { + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $dbPriv.DatabaseName -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $dbPriv.UserName -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $dbPriv.UserType -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $dbPriv.DatabaseRoles -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + } + } + else + { + Write-Host "No records fount for Database Privileges" -ForegroundColor Red + } + + ####################################################################################################### + ####################################################################################################### + + ####################################################################################################### + # SERVER PRIVILEGES + ####################################################################################################### + + # Reset row positions + $rowPosition = 1 + + # Set the tabposition + $tabPosition++ + + # Add a worksheet + $excel | Add-OOXMLWorksheet -WorkSheetName "Login Privileges" #-AutofilterRange "A2:G2" + # Set the worksheet as the first sheet + $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition + + Write-Host " - Retrieving data for SQL Server Privileges" -ForegroundColor Green + + $privileges = Get-SQLServerPrivileges -inst $target | Sort Name + + if($privileges.Count -ge 1) + { + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "Name" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "Login Type" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "Create Date" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "Date Last Modified" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 5 -value "Is Disabled" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 6 -value "Serve rRoles" -StyleSheet $StyleHeader2 | Out-Null + + $rowPosition++ + + foreach($priv in $privileges) + { + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $priv.Name -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $priv.LoginType -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $priv.CreateDate -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $priv.DateLastModified -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 5 -value $priv.IsDisabled -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 6 -value $priv.ServerRoles -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + } + } + else + { + Write-Host "No records fount for SQL Server Privileges" -ForegroundColor Red + } + + ####################################################################################################### + ####################################################################################################### + + ####################################################################################################### + # AGENT JOBS + ####################################################################################################### + + # Reset row positions + $rowPosition = 1 + + # Set the tabposition + $tabPosition++ + + # Add a worksheet + $excel | Add-OOXMLWorksheet -WorkSheetName "Agent Jobs" #-AutofilterRange "A2:G2" + # Set the worksheet as the first sheet + $sheet = $book | Select-OOXMLWorkSheet -WorkSheetNumber $tabPosition + + Write-Host " - Retrieving data for Agent Jobs" -ForegroundColor Green + + $jobs = Get-SQLAgentJobs -inst $target | Sort Name + + if($jobs.Count -ge 1) + { + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 1 -value "Name" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 2 -value "Description" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 3 -value "Parent" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 4 -value "Category" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 5 -value "CategoryType" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 6 -value "DateCreated" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 7 -value "DateLastModified" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 8 -value "DeleteLevel" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 9 -value "EmailLevel" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 10 -value "EventLogLevel" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 11 -value "HasSchedule" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 12 -value "HasServer" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 13 -value "HasStep" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 14 -value "IsEnabled" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 15 -value "JobID" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 16 -value "JobType" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 17 -value "LastRunDate" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 18 -value "LastRunOutcome" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 19 -value "NetSendLevel" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 20 -value "NextRunDate" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 21 -value "NextRunScheduleID" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 22 -value "OperatorToEmail" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 23 -value "OperatorToNetSend" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 24 -value "OperatorToPage" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 25 -value "OriginatingServer" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 26 -value "OwnerLoginName" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 27 -value "PageLevel" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 28 -value "StartStepID" -StyleSheet $StyleHeader2 | Out-Null + $sheet | Set-OOXMLRangeValue -row $RowPosition -col 29 -value "VersionNumber" -StyleSheet $StyleHeader2 | Out-Null + + $rowPosition++ + + foreach($job in $jobs) + { + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 1 -value $job.Name -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 2 -value $job.Description -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 3 -value $job.Parent -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 4 -value $job.Category -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 5 -value $job.CategoryType -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 6 -value $job.DateCreated -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 7 -value $job.DateLastModified -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 8 -value $job.DeleteLevel -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 9 -value $job.EmailLevel -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 10 -value $job.EventLogLevel -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 11 -value $job.HasSchedule -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 12 -value $job.HasServer -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 13 -value $job.HasStep -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 14 -value $job.IsEnabled -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 15 -value $job.JobID -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 16 -value $job.JobType -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 17 -value $job.LastRunDate -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 18 -value $job.LastRunOutcome -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 19 -value $job.NetSendLevel -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 20 -value $job.NextRunDate -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 21 -value $job.NextRunScheduleID -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 22 -value $job.OperatorToEmail -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 23 -value $job.OperatorToNetSend -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 24 -value $job.OperatorToPage -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 25 -value $job.OriginatingServer -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 26 -value $job.OwnerLoginName -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 27 -value $job.PageLevel -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 28 -value $job.StartStepID -StyleSheet $styleNormal | Out-Null + $sheet | Set-OOXMLRangeValue -row $rowPosition -col 29 -value $job.VersionNumber -StyleSheet $styleNormal | Out-Null + + $rowPosition++ + } + } + else + { + Write-Host "No records fount for Agent Jobs" -ForegroundColor Red + } + + ####################################################################################################### + ####################################################################################################### + + $excel | Save-OOXMLPackage -FileFullPath $outputFile -Dispose +} + +$items = Import-Csv "c:\sqlserverinstances.csv" -Delimiter ";" + +foreach($item in $items) +{ + if(Test-Connection $item.ComputerName) + { + Generate-Documentation -server $item.ComputerName -instance $item.SQLServerInstanceName -destination 'H:\Mijn documenten\_Overdracht\Databasebeheer\SQL Server Inventarisatie' + } +} diff --git a/PowerShell/Get-SQLErrorLog.ps1 b/PowerShell/Get-SQLErrorLog.ps1 new file mode 100644 index 00000000..acac19d2 --- /dev/null +++ b/PowerShell/Get-SQLErrorLog.ps1 @@ -0,0 +1,243 @@ +[cmdletbinding()] +param( + [Parameter(Mandatory = $true)] + [string]$servername, + [Parameter(Mandatory = $false)] + [string]$instanceName = "DEFAULT", + [Parameter(Mandatory = $false)] + [string]$From = "1/1/1970 00:00:00", + [Parameter(Mandatory = $false)] + [string]$To, + [Parameter(Mandatory = $false)] + [System.Management.Automation.CredentialAttribute()] + $Credential, + [Parameter(Mandatory = $false)] + [int]$maxThreads +) + +begin +{ + $FileReaderScriptBlock = { + Param ( + [string] $filepath, + [hashtable] $splat + ) + + $RemoteCommandScriptBlock = { + param ( + [string] $filepath + ) + Get-Content $filepath -ReadCount 0 + } + + #$Content = @() + $Content = Invoke-Command @splat -scriptblock $RemoteCommandScriptBlock -ArgumentList $filePath + + $RunResult = [pscustomobject] @{ + FileName = $filepath + ContentCount = $Content.Count + Content = $Content + ScriptToRun = $RemoteCommandScriptBlock + } + Return $RunResult + } + + $FileParserScriptBlock = { + Param ( + [array] $fileContents, + [array] $lineNumbers + ) + + $ErrorLogEntries = New-Object -typename System.Collections.ArrayList + + For ($l = 0; $l -lt $lineNumbers.Count; $l++) { + $LineNumber = $lineNumbers[$l].LineNumber + + $line = $fileContents[$LineNumber-1] -replace '\s+', ' ' + $parsed = $line.split(' ') + $logErrorNumber = $parsed[4] -replace ',','' + $logSeverity = $parsed[6] -replace ',','' + $LogState = $parsed[8] -replace '\.','' + + $line = $fileContents[$LineNumber] -replace '\s+', ' ' + $parsed = $line.split(' ') + + $eventTime = Get-Date -Date ($parsed[0] + ' ' + $parsed[1]) + if ($parsed[2] -ne "Server") { + $spid = ($parsed[2] -replace 'spid','') -replace 's','' + } else { + $Spid = $null + } + $message = $line.Substring($parsed[0].Length + $parsed[1].Length + $parsed[2].length + 3) + + $ErrorLogEvent = [pscustomobject] @{ + EventTime = $eventTime + Spid = $spid + Message = $message + ErrorNumber = $logErrorNumber + Severity = $logSeverity + State = $LogState + } + + $ErrorLogEntries.Add($ErrorLogEvent) + } + + $RunResult = New-Object PSObject -Property @{ + ErrorLogObjects = $ErrorLogEntries + } + Return $RunResult + } +} + + + +process +{ + $eventSource = "MSSQLSERVER" + if ($instancename -ne "DEFAULT") { + $eventSource = "MSSQL$" + $instanceName + } + if (!$to) { + $to = Get-Date + Write-Verbose "Settting to to $to" + } + + $InvokeCommandParamters = @{ + 'ComputerName'=$servername; + } + if ($Credential) { + $InvokeCommandParamters.Add('Credential',$Credential) + } + + Write-Verbose "Server Name: $servername" + Write-Verbose "Looking for SQL Server instance information for service $eventsource" + $ErrorLogPathFromEventLog = ((Invoke-Command @InvokeCommandParamters -ScriptBlock {param ($eventSource) Get-Eventlog -LogName Application | where-object {$_.EventID -eq 17111 -and $_.Source -eq $eventSource}} -ArgumentList $eventSource | Select -First 1).Message -replace "Logging SQL Server messages in file '","") -replace "'.","" + $errorLogPath = $ErrorLogPathFromEventLog.Substring(0,$ErrorLogPathFromEventLog.LastIndexOf("\")) + $errorLogFileName = $ErrorLogPathFromEventLog.Substring($ErrorLogPathFromEventLog.LastIndexOf("\")+1) + Write-Verbose "SQL Server Error Log Path: $errorlogpath" + $ErrorLogs = Invoke-Command @InvokeCommandParamters -ScriptBlock {param ($ErrorLogPath, $ErrorLogFileName) Get-ChildItem -Path $ErrorLogPath | Where-Object {$_.Name -like "$ErrorLogFileName*"}} -ArgumentList $errorlogpath, $errorLogFileName + $LastErrorLog = $ErrorLogs | Where-Object {$_.LastWriteTime -le $from} | Sort-Object -Property LastWriteTime -Descending | Select -First 1 + if ($to -ge ($ErrorLogs | Sort-Object -Property LastWritTime | Select -First 1).LastWriteTime) { + $FirstErrorLog = $ErrorLogs | Sort-Object -Property LastWritTime | Select -First 1 + } else { + $FirstErrorLog = $ErrorLogs | Where-Object {$_.LastWriteTime -ge $to} | Sort-Object -Property LastWriteTime | Select -First 1 + } + + $ErrorLogs = $ErrorLogs | Where-Object {$_.LastWriteTime -ge $LastErrorLog.LastWriteTime -and $_.LastWriteTime -le $FirstErrorLog.LastWriteTime} | Sort-Object -Property LastWriteTime + + $fileNumber = 0 + $jobs = New-Object -typename System.Collections.ArrayList + $PowerShellObjects = New-Object -typename System.Collections.ArrayList + $Results = @() + + ForEach ($ErrorLog in $ErrorLogs) + { + $Runspace = [runspacefactory]::CreateRunspace() + $PowerShell = [powershell]::Create().AddScript($FileReaderScriptBlock).AddArgument($ErrorLog.FullName).AddArgument($InvokeCommandParamters) + $PowerShell.Runspace = $Runspace + [void]$PowerShellObjects.Add($PowerShell) + } + + ForEach ($PowerShellObject in $PowerShellObjects) + { + $PowerShellObject.Runspace.Open() + [void]$Jobs.Add(($PowerShellObject.BeginInvoke())) + } + + Write-Verbose "All files added, waiting for threads to complete" + $StopWatch = [System.Diagnostics.Stopwatch]::StartNew() + + Do + { + Start-Sleep -Seconds 1 + } While ($jobs.IsCompleted -contains $false) + + Write-Verbose "All threads completed!" + $StopWatch.Stop() + $FileReaderDuration = $StopWatch.Elapsed.TotalMilliseconds + Write-Verbose "$FileReaderDuration milliseconds to read all the files" + + $Counter = 0 + $AllContent = $null + ForEach ($PowerShellObject in $PowerShellObjects) + { + $Data = $PowerShellObject.EndInvoke($Jobs[$Counter]) + $AllContent += $Data.Content + $Results += $Data + $Counter++ + $PowerShellObject.Runspace.Dispose() + $PowerShellObject.Dispose() + } + + Write-Verbose "Matching error lines..." + $matchedLines = $AllContent | Select-String -Pattern '((\w+): (\d+)[,\.]\s?){3}' + $matchedLinesTotal = $matchedLines.Length + $remainder = $matchedLinesTotal % 8 + $setSize = ($matchedLinesTotal - $remainder) / 8 + + $jobs = New-Object -typename System.Collections.ArrayList + $PowerShellObjects = New-Object -typename System.Collections.ArrayList + $Results = @() + + Write-Verbose "There are $matchedLinesTotal to parse" + for ($x = 0; $x -lt 8; $x++) { + $min = $setSize * $x + $max = $min + ($setSize - 1) + $subSet = $matchedLines[$min..$max] + Write-Verbose "Chunking $min to $max..." + $Runspace = [runspacefactory]::CreateRunspace() + $m = $matchedLines[$min..$max] + $PowerShell = [powershell]::Create().AddScript($FileParserScriptBlock).AddArgument($AllContent).AddArgument($subSet) + $PowerShell.Runspace = $Runspace + [void]$PowerShellObjects.Add($PowerShell) + } + if ($remainder -gt 0) { + $min = $max + 1 + $max = $matchedLinesTotal + $subSet = $matchedLines[$min..$max] + Write-Verbose "Chunking remainder $min to $max..." + $Runspace = [runspacefactory]::CreateRunspace() + $PowerShell = [powershell]::Create().AddScript($FileParserScriptBlock).AddArgument($AllContent).AddArgument($subSet) + $PowerShell.Runspace = $Runspace + [void]$PowerShellObjects.Add($PowerShell) + + } + + ForEach ($PowerShellObject in $PowerShellObjects) + { + $PowerShellObject.Runspace.Open() + [void]$Jobs.Add(($PowerShellObject.BeginInvoke())) + } + + $StopWatch = [System.Diagnostics.Stopwatch]::StartNew() + Write-Verbose "All files chunks chunked, waiting for threads to complete" + + Do + { + Write-Verbose "Waiting..." + Start-Sleep -Seconds 2 + } While ($jobs.IsCompleted -contains $false) + + Write-Verbose "All threads completed!" + $StopWatch.Stop() + $FileParserDuration = $StopWatch.Elapsed.TotalMilliseconds + Write-Verbose "$FileParserDuration milliseconds to parse all the chunks" + + $Errors = @() + $Counter = 0 + ForEach ($PowerShellObject in $PowerShellObjects) + { + $Data = $PowerShellObject.EndInvoke($Jobs[$Counter]) + $Errors += $Data.ErrorLogObjects + $Counter++ + $PowerShellObject.Runspace.Dispose() + $PowerShellObject.Dispose() + } +} + +end +{ + return $Errors + $Results = $null + $AllContent = $null +} \ No newline at end of file diff --git a/PowerShell/Get-SQLServerGlobalTraceFlags.ps1 b/PowerShell/Get-SQLServerGlobalTraceFlags.ps1 new file mode 100644 index 00000000..124ac835 --- /dev/null +++ b/PowerShell/Get-SQLServerGlobalTraceFlags.ps1 @@ -0,0 +1,42 @@ +<# +.Synopsis + Display all active trace flags on SQL Server +.DESCRIPTION + Display all active trace flags on SQL Server +.EXAMPLE + The following command scripts out the permissions of login account [John] and generates the script at "c:\temp\clone.sql" + Notice, parameters [OldLogin] and [NewLogin] uses the same value of "John" + Clone-SQLLogin -Server Server1, Server2 -OldLogin John -NewLogin John -FilePath "c:\temp\clone.sql" + +.EXAMPLE + Get-SQLServerGlobalTraceFlags +.NOTES + Original link: https://naturalselectiondba.wordpress.com/2016/04/21/sql-server-use-powershell-to-find-what-trace-flags-are-running/ + Author: Matthew Darwin +#> + +function Get-SQLServerGlobalTraceFlags +{ + [cmdletbinding()] + param([string]$Server) + + #create an smo object for the SQL Server + $SQLServer = new-object ("Microsoft.SQLServer.Management.Smo.Server") $Server + + #get the trace flag status + $TraceFlags = $SQLServer.EnumActiveGlobalTraceFlags() + + #loop through the trace flags and add the servername in order to create an object with all the required rows to import into a table later + ForEach($TraceFlag in $TraceFlags) + { + $data = @{"ServerName" = $Server + ; "TraceFlag" = $TraceFlag.TraceFlag + ; "Status" = $TraceFlag.Status} + + $Output = new-object psobject -Property $data + write-output $output + } + +} + +export-modulemember -Function Get-SQLServerGlobalTraceFlags diff --git a/PowerShell/Get-SQLServerSecurityReview.ps1 b/PowerShell/Get-SQLServerSecurityReview.ps1 new file mode 100644 index 00000000..baec0e03 --- /dev/null +++ b/PowerShell/Get-SQLServerSecurityReview.ps1 @@ -0,0 +1,1049 @@ +<# +.SYNOPSIS + The Script retrives the Security Best Practises for SQL Server and put's all that info in a html document. +.DESCRIPTION + The Following information collectors can be found in the report. +1. Server Information +2. Database owners +3. Windows Authenticated Logins +4. SQL Authenticated Logins +5. Server Level Permissions +6. Server Role Members +7. Database Level Permissions +8. Database Role Members +9. Job Owners +10. Login Account for SQL Services +11. SQL Server Network Protocols +12. SQL Server TCP Port +13. SQL Server Login Auditing Property Setting +14. SQL Server Global Configuration Parameter (Secrity Affecting One's) +.PARAMETER Computer +Specify the Computer\Machine\Sever Name here to make IO analysis for the Server. One hostname per run. +For Example: Get-SQLSecurityReview -computer ServerName ...... +.PARAMETER instance +Specify the SQL instance Name to make IO analysis for the Server. One SQL instance per run. +For Example: Get-SQLSecurityReview ...... -instance ServerName\SQLInstance ...... +.PARAMETER report +Specify the location for the output report +For Example: Get-SQLSecurityReview ...... C:\temp\ServerName$SQLInstance-Security_Review.html +.EXAMPLE +Get-SQLSecurityReview -computer ServerName -instance ServerName\SQLInstance -report C:\temp\ServerName$SQLInstance-Security_Review.html +This will generate a html color coded report for localhost with sql instance jupiter +and will dump the report @ location - C:\temp\ServerName$SQLInstance-Security_Review.html +.NOTES + Author: Sandeep Arora arora@pythian.com sandeep16arora@gmail.com + Version Info: + 1.1 - 01/15/2016 - Initial Draft + 1.2 - 06/25/2016 - Bug Fixes with SMO Objects for Collecting SQL Server Port Info and Details for Networking Protocols + Verified on following platforms + Powershell v2.0 and higher versions + Microsoft SQL Server 2008 and higher versions + Windows Server 2008 and higher versions +#> + +[CmdletBinding()] +Param( + [Parameter(Mandatory=$true, ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$true)] + [Alias('hostname')] + [string]$computer, + + [Parameter(Mandatory=$true, ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$true)] + [string]$instance, + + [Parameter(Mandatory=$true, ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$true)] + [string]$report + ) + +Function Get-SQLServerInfo { + [CmdletBinding()] + Param( + [Parameter(Mandatory=$true)] + [Alias('instance')] + [string]$sqlinstance + ) + BEGIN{ + Try{ + $query = @" + exec sp_configure 'show advanced options', 1; + RECONFIGURE with override; + ------------------------------------------------ + SET NOCOUNT ON + create table #spconfig(s_name varchar(50), mini bigint, maxi bigint, config_value bigint, run_value bigint) + insert into #spconfig(s_name, mini, maxi,config_value, run_value) execute sp_configure + declare @testvaluec as int + declare @testvaluer as int + set @testvaluec = (select config_value from #spconfig where s_name like '%xp_cmdshell%' ) + set @testvaluer = (select run_value from #spconfig where s_name like '%xp_cmdshell%' ) + --------------------------------------------------------------------------------------------------------------- + ---------------------------------------------CONDITION 1 + IF (@testvaluec =0 AND @testvaluer = 0) + ----------------------------------------------BLOCK A + BEGIN + --------------------------------------------------- + exec sp_configure 'show advanced options', 1; + RECONFIGURE with override; + exec sp_configure 'xp_cmdshell', 1; + RECONFIGURE with override; + --------------------------------------------------------------- + declare @rootdir nvarchar(1000) + exec master.dbo.xp_instance_regread + N'HKEY_LOCAL_MACHINE', + N'SOFTWARE\Microsoft\MSSQLServer\Setup', + N'SQLPath', @rootdir OUTPUT + IF EXISTS(SELECT 1 FROM [master].[sys].[databases] WHERE [name] = 'zzTempDBForDefaultPath') + BEGIN + DROP DATABASE zzTempDBForDefaultPath + END; + CREATE DATABASE zzTempDBForDefaultPath; + DECLARE @Default_Data_Path1 VARCHAR(512), + @Default_Log_Path2 VARCHAR(512); + SELECT @Default_Data_Path1 = + ( SELECT LEFT(physical_name,LEN(physical_name)-CHARINDEX('\',REVERSE(physical_name))+1) + FROM sys.master_files mf + INNER JOIN sys.[databases] d + ON mf.[database_id] = d.[database_id] + WHERE d.[name] = 'zzTempDBForDefaultPath' AND type = 0); + SELECT @Default_Log_Path2 = + ( SELECT LEFT(physical_name,LEN(physical_name)-CHARINDEX('\',REVERSE(physical_name))+1) + FROM sys.master_files mf + INNER JOIN sys.[databases] d + ON mf.[database_id] = d.[database_id] + WHERE d.[name] = 'zzTempDBForDefaultPath' AND type = 1); + IF EXISTS(SELECT 1 FROM [master].[sys].[databases] WHERE [name] = 'zzTempDBForDefaultPath') + BEGIN + DROP DATABASE zzTempDBForDefaultPath + END + declare @ErrLogPath1 nvarchar(500) + exec master.dbo.xp_instance_regread + N'HKEY_LOCAL_MACHINE', + N'Software\Microsoft\MSSQLServer\MSSQLServer\Parameters', + N'SqlArg1', @ErrLogPath1 OUTPUT + DECLARE @DBEngineLogin VARCHAR(100) + EXECUTE master.dbo.xp_instance_regread + @rootkey = N'HKEY_LOCAL_MACHINE', + @key = N'SYSTEM\CurrentControlSet\Services\MSSQLServer', + @value_name = N'ObjectName', + @value = @DBEngineLogin OUTPUT + DECLARE @tmpNewValue TABLE (newvalue varchar(500)) + INSERT INTO @tmpNewValue EXEC xp_cmdshell 'systeminfo | findstr /c:"System Manufacturer"' + DECLARE @localVariable varchar(500) + SET @localVariable = (SELECT top 1 rtrim(ltrim(newvalue)) FROM @tmpNewValue ) + --case when @localVariable like '%VMware%' OR @localVariable like '%hyper%'Then 'Virtual' else 'Physical' end as 'ServerType' + select + Case SERVERPROPERTY('IsClustered') when 1 then 'CLUSTERED' else 'STANDALONE' end as 'ServerType', + case when @localVariable like '%VMware%' OR @localVariable like '%hyper%'Then 'Virtual' else 'Physical' end as 'ServerType(PhysicalorVirtual)', + SERVERPROPERTY('MachineName') as 'MachineName', + (SELECT TOP(1) c.local_net_address + FROM sys.dm_exec_connections AS c + WHERE c.local_net_address IS NOT NULL) as IPAddress,'MSSQL' as 'Technology', + @@servername as 'InstanceName', + (SELECT top 1 local_tcp_port + FROM sys.dm_exec_connections + WHERE local_tcp_port IS NOT NULL + and net_transport = 'TCP' and protocol_type not like 'Database Mirroring' and endpoint_id = 4) as 'port', + @DBEngineLogin as 'ServiceAccount', + left(@@VERSION, CHARINDEX(' - ',@@version)-1) as 'Version', + SERVERPROPERTY ('Edition') as 'Edition', + SERVERPROPERTY('productversion') 'VersionNumber', + SERVERPROPERTY ('productlevel') as 'ServicePack', + (select stuff((SELECT ', '+ cast (ROW_NUMBER() Over(order by dbid) as varchar)+'.'+ UPPER(name) + FROM sys.sysdatabases FOR XML PATH ('')), 1, 1, '') as 'DB') as 'Databases', + @Default_Data_Path1 as 'data', @Default_Log_Path2 as 'log', + (select top 1 filename from sys.sysaltfiles where name like '%tempdev%' and filename like '%.mdf') as 'tempdbdata', + (select top 1 filename from sys.sysaltfiles where name like '%templog%' and filename like '%.ldf') as 'tempdblog', + @rootdir as 'root', + SUBSTRING(substring(@ErrLogPath1, 1, len(@ErrLogPath1) - charindex('\', reverse(@ErrLogPath1))),3,500) as 'ErrorLogPath' + --------------------------------------------------------------- + exec sp_configure 'show advanced options', 1; + RECONFIGURE with override; + exec sp_configure 'xp_cmdshell', 0; + RECONFIGURE with override; + exec sp_configure 'show advanced options', 0; + Reconfigure with override; + ---------------------------------------------------------------- + Drop Table #spconfig + END + ---------------------------------------------------------------- + ---------------------------------------------CONDITION 2 + ELSE IF (@testvaluec =1 AND @testvaluer = 1) + ----------------------------------------------------------BLOCK B + BEGIN + ------------------------------------------------------------------- + declare @rootdir3 nvarchar(500) + exec master.dbo.xp_instance_regread + N'HKEY_LOCAL_MACHINE', + N'SOFTWARE\Microsoft\MSSQLServer\Setup', + N'SQLPath', @rootdir3 OUTPUT + + IF EXISTS(SELECT 1 FROM [master].[sys].[databases] WHERE [name] = 'zzTempDBForDefaultPath') + + BEGIN + DROP DATABASE zzTempDBForDefaultPath + END; + + CREATE DATABASE zzTempDBForDefaultPath; + + DECLARE @Default_Data_Path3 VARCHAR(512), + @Default_Log_Path4 VARCHAR(512); + + SELECT @Default_Data_Path3 = + ( SELECT LEFT(physical_name,LEN(physical_name)-CHARINDEX('\',REVERSE(physical_name))+1) + FROM sys.master_files mf + INNER JOIN sys.[databases] d + ON mf.[database_id] = d.[database_id] + WHERE d.[name] = 'zzTempDBForDefaultPath' AND type = 0); + + SELECT @Default_Log_Path4 = + ( SELECT LEFT(physical_name,LEN(physical_name)-CHARINDEX('\',REVERSE(physical_name))+1) + FROM sys.master_files mf + INNER JOIN sys.[databases] d + ON mf.[database_id] = d.[database_id] + WHERE d.[name] = 'zzTempDBForDefaultPath' AND type = 1); + + IF EXISTS(SELECT 1 FROM [master].[sys].[databases] WHERE [name] = 'zzTempDBForDefaultPath') + BEGIN + DROP DATABASE zzTempDBForDefaultPath + END + DECLARE @DBEngineLogin1 VARCHAR(100) + EXECUTE master.dbo.xp_instance_regread + @rootkey = N'HKEY_LOCAL_MACHINE', + @key = N'SYSTEM\CurrentControlSet\Services\MSSQLServer', + @value_name = N'ObjectName', + @value = @DBEngineLogin1 OUTPUT + + declare @ErrLogPath nvarchar(500) + exec master.dbo.xp_instance_regread + N'HKEY_LOCAL_MACHINE', + N'Software\Microsoft\MSSQLServer\MSSQLServer\Parameters', + N'SqlArg1', @ErrLogPath OUTPUT + + DECLARE @tmpNewValue1 TABLE (newvalue varchar(500)) + INSERT INTO @tmpNewValue1 EXEC xp_cmdshell 'systeminfo | findstr /c:"System Manufacturer"' + DECLARE @localVariable1 varchar(500) + SET @localVariable1 = (SELECT top 1 rtrim(ltrim(newvalue)) FROM @tmpNewValue1 ) + --case when @localVariable like '%VMware%' OR @localVariable like '%hyper%'Then 'Virtual' else 'Physical' end as 'ServerType' + select + Case SERVERPROPERTY('IsClustered') when 1 then 'CLUSTERED' else 'STANDALONE' end as 'ServerType', + case when @localVariable like '%VMware%' OR @localVariable like '%hyper%'Then 'Virtual' else 'Physical' end as 'ServerType(PhysicalorVirtual)', + SERVERPROPERTY('MachineName') as 'MachineName', + (SELECT TOP(1) c.local_net_address FROM sys.dm_exec_connections AS c + WHERE c.local_net_address IS NOT NULL) as IPAddress,'MSSQL' as 'Technology', + @@servername as 'InstanceName', + (SELECT top 1 local_tcp_port + FROM sys.dm_exec_connections + WHERE local_tcp_port IS NOT NULL + and net_transport = 'TCP' and protocol_type not like 'Database Mirroring' and endpoint_id = 4) as 'port', + @DBEngineLogin1 as 'ServiceAccount', + left(@@VERSION, CHARINDEX(' - ',@@version)-1) as 'Version', + SERVERPROPERTY ('Edition') as 'Edition', + SERVERPROPERTY('productversion') 'VersionNumber', + SERVERPROPERTY ('productlevel') as 'ServicePack', + (select stuff((SELECT ', '+ cast (ROW_NUMBER() Over(order by dbid) as varchar)+'.'+ UPPER(name) + FROM sys.sysdatabases FOR XML PATH ('')), 1, 1, '') as 'DB') as 'Databases', + @Default_Data_Path3 as 'data', @Default_Log_Path4 as 'log', + (select top 1 filename from sys.sysaltfiles where name like '%tempdev%' and filename like '%.mdf') as 'tempdbdata', + (select top 1 filename from sys.sysaltfiles where name like '%templog%' and filename like '%.ldf') as 'tempdblog', + @rootdir3 as 'root', + SUBSTRING(substring(@ErrLogPath, 1, len(@ErrLogPath) - charindex('\', reverse(@ErrLogPath))),3,500) as 'ErrorLogPath' + ------------------------------------------------------------------- + exec sp_configure 'show advanced options', 0; + Reconfigure with override; + --------------------------------------------------------- + drop table #spconfig + END + ---------------------------------------------------------- +"@ + $ErrorActionPreference = "Stop" + $SqlConnection = New-Object System.Data.SqlClient.SqlConnection + $SqlConnection.ConnectionString = "Data Source = $sqlinstance; Initial Catalog = Master; Integrated Security=true; Connection Timeout=300;" + + $SqlCmd = New-Object System.Data.SqlClient.SqlCommand + $SqlCmd.CommandText = $query + $SqlCmd.CommandTimeout = 0; + $SqlCmd.Connection = $SqlConnection + + $SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter + $SqlAdapter.SelectCommand = $SqlCmd + + $DataSet = New-Object System.Data.DataSet + $SqlAdapter.Fill($DataSet) | Out-Null + $ErrorActionPreference = "Continue" + } + Catch{ + Write-Host "Unable to connect to the SQL Instance [$sqlinstance] in specified time-out period of 300s. Please Check the Instance availability and try again." -ForegroundColor "Red" + } + } + Process{ + return $DataSet.Tables[0] + } + END{ + $SqlConnection.Close() + } +} + +Function Get-DBOwners { + [CmdletBinding()] + Param( + [Parameter(Mandatory=$true)] + [Alias('instance')] + [string]$sqlinstance + ) + BEGIN{ + Try{ + $query = @" + select d.name [Database], d.owner_sid [Owner SID], p.name [Owner], p.type_desc [Owner Type] + from sys.databases d left outer join sys.server_principals p on (d.owner_sid = p.sid) + where d.database_id > 4 order by 1 +"@ + $ErrorActionPreference = "Stop" + $SqlConnection = New-Object System.Data.SqlClient.SqlConnection + $SqlConnection.ConnectionString = "Data Source = $sqlinstance; Initial Catalog = Master; Integrated Security=true; Connection Timeout=60;" + + $SqlCmd = New-Object System.Data.SqlClient.SqlCommand + $SqlCmd.CommandText = $query + $SqlCmd.Connection = $SqlConnection + + $SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter + $SqlAdapter.SelectCommand = $SqlCmd + + $DataSet = New-Object System.Data.DataSet + $SqlAdapter.Fill($DataSet) | Out-Null + $ErrorActionPreference = "Continue" + } + Catch{ + Write-Host "Unable to connect to the SQL Instance [$sqlinstance] in specified time-out period of 60s. Please Check the Instance availability and try again." -ForegroundColor "Red" + } + } + Process{ + return $DataSet.Tables[0] + } + END{ + $SqlConnection.Close() + } +} + +Function Get-WindowAuthLogins { + [CmdletBinding()] + Param( + [Parameter(Mandatory=$true)] + [Alias('instance')] + [string]$sqlinstance + ) + BEGIN{ + Try{ + $query = @" + select name [Login], type_desc [Type], + case when is_disabled = 0 then 'N' + else 'Y' + end as [Disabled?], + create_date [Create Date], + default_database_name [Default Database] + from sys.server_principals + where type in ('U', 'G') +"@ + $ErrorActionPreference = "Stop" + $SqlConnection = New-Object System.Data.SqlClient.SqlConnection + $SqlConnection.ConnectionString = "Data Source = $sqlinstance; Initial Catalog = Master; Integrated Security=true; Connection Timeout=60;" + + $SqlCmd = New-Object System.Data.SqlClient.SqlCommand + $SqlCmd.CommandText = $query + $SqlCmd.Connection = $SqlConnection + + $SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter + $SqlAdapter.SelectCommand = $SqlCmd + + $DataSet = New-Object System.Data.DataSet + $SqlAdapter.Fill($DataSet) | Out-Null + $ErrorActionPreference = "Continue" + } + Catch{ + Write-Host "Unable to connect to the SQL Instance [$sqlinstance] in specified time-out period of 60s. Please Check the Instance availability and try again." -ForegroundColor "Red" + } + } + Process{ + return $DataSet.Tables[0] + } + END{ + $SqlConnection.Close() + } +} + +Function Get-SQLAuthLogins { + [CmdletBinding()] + Param( + [Parameter(Mandatory=$true)] + [Alias('instance')] + [string]$sqlinstance + ) + BEGIN{ + Try{ + $query = @" + select name [Login], type_desc [Type], + case when is_disabled = 0 then 'N' + else 'Y' + end as [Disabled?], + create_date [Create Date], + default_database_name [Default Database], + case when is_policy_checked = 0 then 'N' + else 'Y' + end as [Enforce Password Policy], + case when is_expiration_checked = 0 then 'N' + else 'Y' + end as [Enforce Password Expiration] + from sys.sql_logins + order by 1 +"@ + $ErrorActionPreference = "Stop" + $SqlConnection = New-Object System.Data.SqlClient.SqlConnection + $SqlConnection.ConnectionString = "Data Source = $sqlinstance; Initial Catalog = Master; Integrated Security=true; Connection Timeout=30;" + + $SqlCmd = New-Object System.Data.SqlClient.SqlCommand + $SqlCmd.CommandText = $query + $SqlCmd.Connection = $SqlConnection + + $SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter + $SqlAdapter.SelectCommand = $SqlCmd + + $DataSet = New-Object System.Data.DataSet + $SqlAdapter.Fill($DataSet) | Out-Null + $ErrorActionPreference = "Continue" + } + Catch{ + Write-Host "Unable to connect to the SQL Instance [$sqlinstance] in specified time-out period of 30s. Please Check the Instance availability and try again." -ForegroundColor "Red" + } + } + Process{ + return $DataSet.Tables[0] + } + END{ + $SqlConnection.Close() + } +} + +Function Get-ServerLevelPermissions { + [CmdletBinding()] + Param( + [Parameter(Mandatory=$true)] + [Alias('instance')] + [string]$sqlinstance + ) + BEGIN{ + Try{ + $query = @" + select pa.name [Grantee Login], pa.type_desc [Type], pb.name [Grantor Login], + permission_name [Permission], state_desc [State] + from sys.server_permissions s + inner join sys.server_principals pa on (s.grantee_principal_id = pa.principal_id) + inner join sys.server_principals pb on (s.grantor_principal_id = pb.principal_id) + where pa.type in ('S', 'U', 'G', 'R') + order by 1,4 +"@ + $ErrorActionPreference = "Stop" + $SqlConnection = New-Object System.Data.SqlClient.SqlConnection + $SqlConnection.ConnectionString = "Data Source = $sqlinstance; Initial Catalog = Master; Integrated Security=true; Connection Timeout=30;" + + $SqlCmd = New-Object System.Data.SqlClient.SqlCommand + $SqlCmd.CommandText = $query + $SqlCmd.Connection = $SqlConnection + + $SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter + $SqlAdapter.SelectCommand = $SqlCmd + + $DataSet = New-Object System.Data.DataSet + $SqlAdapter.Fill($DataSet) | Out-Null + $ErrorActionPreference = "Continue" + } + Catch{ + Write-Host "Unable to connect to the SQL Instance [$sqlinstance] in specified time-out period of 30s. Please Check the Instance availability and try again." -ForegroundColor "Red" + } + } + Process{ + return $DataSet.Tables[0] + } + END{ + $SqlConnection.Close() + } +} + +Function Get-ServerRoleMembers { + [CmdletBinding()] + Param( + [Parameter(Mandatory=$true)] + [Alias('instance')] + [string]$sqlinstance + ) + BEGIN{ + Try{ + $query = @" + select pa.name [Role], pb.name [Login] + from sys.server_role_members r + inner join sys.server_principals pa on (r.role_principal_id = pa.principal_id) + inner join sys.server_principals pb on (r.member_principal_id = pb.principal_id) + order by 1,2 +"@ + $ErrorActionPreference = "Stop" + $SqlConnection = New-Object System.Data.SqlClient.SqlConnection + $SqlConnection.ConnectionString = "Data Source = $sqlinstance; Initial Catalog = Master; Integrated Security=true; Connection Timeout=60;" + + $SqlCmd = New-Object System.Data.SqlClient.SqlCommand + $SqlCmd.CommandText = $query + $SqlCmd.Connection = $SqlConnection + + $SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter + $SqlAdapter.SelectCommand = $SqlCmd + + $DataSet = New-Object System.Data.DataSet + $SqlAdapter.Fill($DataSet) | Out-Null + $ErrorActionPreference = "Continue" + } + Catch{ + Write-Host "Unable to connect to the SQL Instance [$sqlinstance] in specified time-out period of 60s. Please Check the Instance availability and try again." -ForegroundColor "Red" + } + } + Process{ + return $DataSet.Tables[0] + } + END{ + $SqlConnection.Close() + } +} + +Function Get-DBLevelPermissions { + [CmdletBinding()] + Param( + [Parameter(Mandatory=$true)] + [Alias('instance')] + [string]$sqlinstance + ) + BEGIN{ + Try{ + $query = @" + if exists (select [id] from tempdb..sysobjects where [id] = OBJECT_ID ('tempdb..#tmpTable')) + drop table #tmpTable + create table #tmpTable ( + [Database] sysname NOT NULL, + [Grantee Login] sysname NOT NULL, + [Type] sysname NOT NULL, + [Grantor Login] sysname NOT NULL, + [Permission] sysname NOT NULL, + [Applies To] sysname NOT NULL, + [State] sysname NOT NULL) + exec sp_msforeachdb + 'use [?]; + insert into #tmpTable + select distinct db_name() [Database], pa.name [Grantee Login], pa.type_desc [Type], pb.name [Grantor Login], + permission_name [Permission], class_desc [Applies To], state_desc [State] + from sys.database_permissions d + inner join sys.database_principals pa on (d.grantee_principal_id = pa.principal_id) + inner join sys.database_principals pb on (d.grantor_principal_id = pb.principal_id) + where pa.type in (''S'', ''U'', ''G'', ''A'', ''R'')' + select * from #tmpTable order by 1,2,5,6 + drop table #tmpTable +"@ + $ErrorActionPreference = "Stop" + $SqlConnection = New-Object System.Data.SqlClient.SqlConnection + $SqlConnection.ConnectionString = "Data Source = $sqlinstance; Initial Catalog = Master; Integrated Security=true; Connection Timeout=60;" + + $SqlCmd = New-Object System.Data.SqlClient.SqlCommand + $SqlCmd.CommandText = $query + $SqlCmd.Connection = $SqlConnection + + $SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter + $SqlAdapter.SelectCommand = $SqlCmd + + $DataSet = New-Object System.Data.DataSet + $SqlAdapter.Fill($DataSet) | Out-Null + $ErrorActionPreference = "Continue" + } + Catch{ + Write-Host "Unable to connect to the SQL Instance [$sqlinstance] in specified time-out period of 60s. Please Check the Instance availability and try again." -ForegroundColor "Red" + } + } + Process{ + return $DataSet.Tables[0] + } + END{ + $SqlConnection.Close() + } +} + +Function Get-DBRoleMembers { + [CmdletBinding()] + Param( + [Parameter(Mandatory=$true)] + [Alias('instance')] + [string]$sqlinstance + ) + BEGIN{ + Try{ + $query = @" + if exists (select [id] from tempdb..sysobjects where [id] = OBJECT_ID ('tempdb..#tmpTable')) + drop table #tmpTable + create table #tmpTable ( + [Database] sysname NOT NULL, + [Role] sysname NOT NULL, + [Login] sysname NOT NULL) + exec sp_msforeachdb + 'use [?]; + insert into #tmpTable + select db_name() [Database], pa.name [Role], pb.name [Login] + from sys.database_role_members r + inner join sys.database_principals pa on (r.role_principal_id = pa.principal_id) + inner join sys.database_principals pb on (r.member_principal_id = pb.principal_id)' + select [Database], Role, Login from #tmpTable + order by 1,2,3 + drop table #tmpTable +"@ + $ErrorActionPreference = "Stop" + $SqlConnection = New-Object System.Data.SqlClient.SqlConnection + $SqlConnection.ConnectionString = "Data Source = $sqlinstance; Initial Catalog = Master; Integrated Security=true; Connection Timeout=30;" + + $SqlCmd = New-Object System.Data.SqlClient.SqlCommand + $SqlCmd.CommandText = $query + $SqlCmd.Connection = $SqlConnection + + $SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter + $SqlAdapter.SelectCommand = $SqlCmd + + $DataSet = New-Object System.Data.DataSet + $SqlAdapter.Fill($DataSet) | Out-Null + $ErrorActionPreference = "Continue" + } + Catch{ + Write-Host "Unable to connect to the SQL Instance [$sqlinstance] in specified time-out period of 30s. Please Check the Instance availability and try again." -ForegroundColor "Red" + } + } + Process{ + return $DataSet.Tables[0] + } + END{ + $SqlConnection.Close() + } +} + +Function Get-SQLJobOwner { + [CmdletBinding()] + Param( + [Parameter(Mandatory=$true)] + [Alias('instance')] + [string]$sqlinstance + ) + BEGIN{ + Try{ + $query = @" + select j.name [Job], p.name [Owner], + case + when p.type like 'S' then 'SQL Login' + when p.type like 'U' then 'Windows Login' + end as 'Login Type' + from msdb..sysjobs j inner join sys.server_principals p on (j.owner_sid = p.sid) +"@ + $ErrorActionPreference = "Stop" + $SqlConnection = New-Object System.Data.SqlClient.SqlConnection + $SqlConnection.ConnectionString = "Data Source = $sqlinstance; Initial Catalog = Master; Integrated Security=true; Connection Timeout=30;" + + $SqlCmd = New-Object System.Data.SqlClient.SqlCommand + $SqlCmd.CommandText = $query + $SqlCmd.Connection = $SqlConnection + + $SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter + $SqlAdapter.SelectCommand = $SqlCmd + + $DataSet = New-Object System.Data.DataSet + $SqlAdapter.Fill($DataSet) | Out-Null + $ErrorActionPreference = "Continue" + } + Catch{ + Write-Host "Unable to connect to the SQL Instance [$sqlinstance] in specified time-out period of 30s. Please Check the Instance availability and try again." -ForegroundColor "Red" + } + } + Process{ + return $DataSet.Tables[0] + } + END{ + $SqlConnection.Close() + } +} + +Function Get-SQLServiceAccount { + [CmdletBinding()] + Param( + [Parameter(Mandatory=$true, ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$true)] + [Alias('hostname')] + [string[]]$ComputerName + ) + BEGIN{} + PROCESS{ + if (Test-Connection $Computer -Quiet -Count 2) { + return Get-WmiObject -Class Win32_Service | Select Caption, startname, StartMode, Started | Where-Object {$_.Caption -like '*SQL*'} + } + else { + Write-Host "Could not connect to $Computer." -ForegroundColor "Red" + } + } + END{} +} + +Function Get-SQLNetworkingProtocols { + [CmdletBinding()] + Param( + [Parameter(Mandatory=$true)] + [Alias('hostname')] + [string]$ComputerName + , + [Parameter(Mandatory=$true)] + [Alias('instance')] + [string]$sqlinstance + ) + BEGIN{ + if (Get-Module -ListAvailable | ?{$_.Name -eq 'SQLPS'}){Push-location; Import-Module SQLPS -DisableNameChecking -WarningAction SilentlyContinue; Pop-Location;} else {Add-PSSnapin SQL* -WarningAction SilentlyContinue -ErrorAction SilentlyContinue;} + try {add-type -AssemblyName "Microsoft.SqlServer.SqlWmiManagement, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91" -EA Stop} + catch {add-type -AssemblyName "Microsoft.SqlServer.SqlWmiManagement"} + $wmi = new-object "Microsoft.SqlServer.Management.Smo.Wmi.ManagedComputer" + if ($sqlinstance -like '*\*') {$sqlinstance = $sqlinstance.Split("\")[1].Split(' ')} else {$sqlinstance = 'MSSQLSERVER'} + $ComputerName = $ComputerName.ToUpper(); + try{ + $uri = "ManagedComputer[@Name='" + $ComputerName + "']/ ServerInstance[@Name='" + $sqlinstance + "']/ServerProtocol[@Name='Tcp']" + $Tcp = $wmi.GetSmoObject($uri) + $uri = "ManagedComputer[@Name='" + $ComputerName + "']/ ServerInstance[@Name='" + $sqlinstance + "']/ServerProtocol[@Name='np']" + $np = $wmi.GetSmoObject($uri) + $uri = "ManagedComputer[@Name='" + $ComputerName + "']/ ServerInstance[@Name='" + $sqlinstance + "']/ServerProtocol[@Name='sm']" + $sm = $wmi.GetSmoObject($uri) + try{ + $uri = "ManagedComputer[@Name='" + $ComputerName + "']/ ServerInstance[@Name='" + $sqlinstance + "']/ServerProtocol[@Name='via']" + $via = $wmi.GetSmoObject($uri) + } + catch{ + Write-Host "VIA Protocol is discontinued" + } + } + catch{ + Write-Host "Unable to connect to the SQL Instance [$sqlinstance] in specified time-out period of 30s. Please Check the Instance availability and try again." -ForegroundColor "Red" + } + } + PROCESS{ + $sm | select @{n="Protocol Name";e={if($_.Name -like 'sm'){"Shared Memory"}}}, IsEnabled + $np | select @{n="Protocol Name";e={if($_.Name -like 'np'){"Named Pipes"}}}, IsEnabled + $Tcp | select @{n="Protocol Name";e={if($_.Name -like 'Tcp'){"TCP\IP"}}}, IsEnabled + $via | select @{n="Protocol Name";e={if($_.Name -like 'via'){"Via"}}}, IsEnabled + } + END{} +} + +Function Get-SQLTCPPort { + [CmdletBinding()] + Param( + [string]$ComputerName, + [string]$sqlinstance + ) + BEGIN{ + if (Get-Module -ListAvailable | ?{$_.Name -eq 'SQLPS'}){Push-location; Import-Module SQLPS -DisableNameChecking -WarningAction SilentlyContinue; Pop-location;} else {Add-PSSnapin SQL* -WarningAction SilentlyContinue -ErrorAction SilentlyContinue;} + try {add-type -AssemblyName "Microsoft.SqlServer.SqlWmiManagement, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91" -EA Stop} + catch {add-type -AssemblyName "Microsoft.SqlServer.SqlWmiManagement"} + $wmi = new-object "Microsoft.SqlServer.Management.Smo.Wmi.ManagedComputer" + if ($sqlinstance -like '*\*') {$sqlinstance = $sqlinstance.Split("\")[1].Split(' ')} else {$sqlinstance = 'MSSQLSERVER'} + Try { + $ComputerName = $ComputerName.ToUpper(); + $uri = "ManagedComputer[@Name='$ComputerName']/ ServerInstance[@Name='$sqlinstance']/ServerProtocol[@Name='Tcp']" + $Tcp = $wmi.GetSmoObject($uri); + } + Catch{ + Write-Host "Unable to connect to the SQL Instance [$sqlinstance] in specified time-out period of 30s. Please Check the Instance availability and try again." -ForegroundColor "Red" + } + } + PROCESS{ + return $wmi.GetSmoObject($uri + "/IPAddress[@Name='IPAll']").IPAddressProperties; + } + END{} +} + +Function Get-LoginAuditing { + [CmdletBinding()] + Param( + [Parameter(Mandatory=$true)] + [Alias('instance')] + [string]$sqlinstance + ) + BEGIN{ + Try{ + $query = @" + declare @AuditLevel int + exec master..xp_instance_regread + @rootkey='HKEY_LOCAL_MACHINE', + @key='SOFTWARE\Microsoft\MSSQLServer\MSSQLServer', + @value_name='AuditLevel', + @value=@AuditLevel output + select case + when @AuditLevel = 0 then 'None' + when @AuditLevel = 1 then 'Successful Logins Only' + when @AuditLevel = 2 then 'Failed Logins Only' + when @AuditLevel = 3 then 'Successful Logins' + end as 'LoginAuditing' +"@ + $ErrorActionPreference = "Stop" + $SqlConnection = New-Object System.Data.SqlClient.SqlConnection + $SqlConnection.ConnectionString = "Data Source = $sqlinstance; Initial Catalog = Master; Integrated Security=true; Connection Timeout=30;" + + $SqlCmd = New-Object System.Data.SqlClient.SqlCommand + $SqlCmd.CommandText = $query + $SqlCmd.Connection = $SqlConnection + + $SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter + $SqlAdapter.SelectCommand = $SqlCmd + + $DataSet = New-Object System.Data.DataSet + $SqlAdapter.Fill($DataSet) | Out-Null + $ErrorActionPreference = "Continue" + } + Catch{ + Write-Host "Unable to connect to the SQL Instance [$sqlinstance] in specified time-out period of 30s. Please Check the Instance availability and try again." -ForegroundColor "Red" + } + } + Process{ + return $DataSet.Tables[0] + } + END{ + $SqlConnection.Close() + } +} + +Function Get-SQLGlobalSettings { + [CmdletBinding()] + Param( + [Parameter(Mandatory=$true)] + [Alias('instance')] + [string]$sqlinstance + ) + BEGIN{ + Try{ + $query = @" + exec sp_configure 'show advanced options', 1; + RECONFIGURE with override; + SET NOCOUNT ON + create table #spconfig(s_name varchar(50), mini bigint, maxi bigint, config_value bigint, run_value bigint) + insert into #spconfig(s_name, mini, maxi,config_value, run_value) execute sp_configure + select s_name, + case when run_value = 1 then 'Enabled' + when run_value = 0 then 'Disbaled' + End as 'CurrentSetting' + from #spconfig where s_name in ('xp_cmdshell','SMO and DMO XPs','remote access','default trace enabled') + drop table #spconfig + exec sp_configure 'show advanced options', 0; + RECONFIGURE with override; +"@ + $ErrorActionPreference = "Stop" + $SqlConnection = New-Object System.Data.SqlClient.SqlConnection + $SqlConnection.ConnectionString = "Data Source = $sqlinstance; Initial Catalog = Master; Integrated Security=true; Connection Timeout=30;" + + $SqlCmd = New-Object System.Data.SqlClient.SqlCommand + $SqlCmd.CommandText = $query + $SqlCmd.Connection = $SqlConnection + + $SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter + $SqlAdapter.SelectCommand = $SqlCmd + + $DataSet = New-Object System.Data.DataSet + $SqlAdapter.Fill($DataSet) | Out-Null + $ErrorActionPreference = "Continue" + } + Catch{ + Write-Host "Unable to connect to the SQL Instance [$sqlinstance] in specified time-out period of 30s. Please Check the Instance availability and try again." -ForegroundColor "Red" + } + } + Process{ + return $DataSet.Tables[0] + } + END{ + $SqlConnection.Close() + } +} + +Write-Host "[$(Get-date -DisplayHint date -Format g)]Script Execution Started ....`r`n" +Write-Host "Collecting SQL Server Instance details ....`r`n" +$serverinfo = Get-SQLServerInfo -sqlinstance "$instance" +Write-Host "Checking Database Owners ....`r`n" +$dbowners = Get-DBOwners -sqlinstance "$instance" +Write-Host "Collecting details for Logins using Windows Authentication ....`r`n" +$winauth = Get-WindowAuthLogins -sqlinstance "$instance" +Write-Host "Collecting details for Logins using SQL Server Authentication ....`r`n" +$sqlauth = Get-SQLAuthLogins -sqlinstance "$instance" +Write-Host "Collecting Server Level Permissions ....`r`n" +$serlvlperm = Get-ServerLevelPermissions -sqlinstance "$instance" +Write-Host "Collecting Server Roles assigned to Logins ....`r`n" +$serrolmem = Get-ServerRoleMembers -sqlinstance "$instance" +Write-Host "Collecting Database Level Permissions ....`r`n" +$dblvlperm = Get-DBLevelPermissions -sqlinstance "$instance" +Write-Host "Collecting Database Roles Assigned to Logins ....`r`n" +$dbrolmem = Get-DBRoleMembers -sqlinstance "$instance" +Write-Host "Collecting Job Owner Details ....`r`n" +$jobowners = Get-SQLJobOwner -sqlinstance "$instance" +Write-Host "Checking SQL Server Services Logon Accounts ....`r`n" +$servaccount = Get-SQLServiceAccount -ComputerName "$computer" +Write-Host "Collecting Enabled Networking Protocols for SQL Server ...." +$sqlprotocols = Get-SQLNetworkingProtocols -computer "$computer" -sqlinstance "$instance" +Write-Host "`r`nCollecting SQL Server Port Details ....`r`n" +$tcpports = Get-SQLTCPPort -computer "$computer" -sqlinstance "$instance" +Write-Host "Checking if Login Auditing is Enabled ....`r`n" +$loginaudit = Get-LoginAuditing -sqlinstance "$instance" +Write-Host "Evaluating Configuration Parameters for Security Risks ....`r`n" +$config = Get-SQLGlobalSettings -sqlinstance "$instance" +Write-Host "[$(Get-date -DisplayHint date -Format g)]Finished Script Execution. Formatting Report ....`r`n" + +#Final Reporting +$css = @" + +"@ + + +if($serverinfo){ + $serverinfo = $serverinfo | select ServerType, "ServerType(PhysicalorVirtual)", MachineName, Technology, InstanceName, ServiceAccount, @{n="Version";e={if($_.Version -like '*2005*'){''+$_.Version} elseif($_.Version -like '*2000*'){''+$_.Version} elseif($_.Version -like '*2008*'){''+$_.Version} else{''+$_.Version}}}, @{n="Edition";e={if($_.Edition -like '*32*bit'){''+$_.Edition} elseif($_.Edition -notlike '*Enterprise*'){''+$_."Edition"} else{''+$_."Edition"}}}, Databases, @{n="Default DataFile Location";e={if($_.data -like "$log*"){''+$_.data}else{''+$_.data} }}, @{n="Default LogFile Path";e={if($_.log -like "$data*"){''+$_.log}else{''+$_.log}}}, @{n="TempDB Datafile Path";e={if($_.tempdbdata -like '$data*' -or $_.tempdbdata -like '$log*' ){''+$_.tempdbdata}else{''+$_.tempdbdata}}}, @{n="TempDB Logfile Path";e={if($_.tempdblog -like '$log*' -or $_.tempdblog -like '$data*'){''+$_.tempdblog}else{''+$_.tempdblog}}}, @{n="Root Path";e={$_.root}}, ErrorLogPath + $htmlreport = $serverinfo | ConvertTo-HTML -PreContent "

SQL Server Information



" -Fragment | out-string +} +else{ + $htmlreport = ConvertTo-HTML -PreContent "

SQL Server Information


" -PostContent "

Error Encountered in reporting the details. Check the log for details. If nothing is reported in the log then no details exist for this collector.


" -Fragment | out-string +} +if($dbowners){ + $dbowners = $dbowners | select Database , Owner, @{n="Owner Type";e={if($_."Owner Type" -like '*SQL*') {''+$_."Owner Type"} else {''+$_."Owner Type"} }} + $htmlreport += $dbowners | ConvertTo-HTML -PreContent "

Database Owners



" -Fragment | out-string +} +else{ + $htmlreport += ConvertTo-HTML -PreContent "

Database Ownners


" -PostContent "

Error Encountered in reporting the details. Check the script log for details. If nothing is reported in the log then no details exist for this collector.


" -Fragment | out-string +} +if($winauth){ + $winauth = $winauth | select Login, Type, @{n="Disabled?";e={if($_.Login -like 'NT *' -and $_."Disabled?" -like 'N') {''+$_."Disabled?"} elseif($_."Disabled?" -like 'Y'){''+$_."Disabled?"} else {''+$_."Disabled?"}}}, "Create Date", @{n="Default Database";e={if($_."Default Database" -like 'master'){''+$_."Default Database"}else{''+$_."Default Database"}}} + $htmlreport += $winauth | ConvertTo-HTML -PreContent "

Windows Authentication Logins



" -Fragment | out-string +} +else{ + $htmlreport += ConvertTo-HTML -PreContent "

Windows Authentication Logins


" -PostContent "

Error Encountered in reporting the details. Check the script log for details. If nothing is reported in the log then no details exist for this collector.


" -Fragment | out-string +} +if($sqlauth){ + $sqlauth = $sqlauth | select Login, Type, @{n="Disabled?";e={if($_.Login -like '##*' -and $_."Disabled?" -like 'Y') {''+$_."Disabled?"} elseif($_.Login -like '##*' -and $_."Disabled?" -like 'N') {''+$_."Disabled?"} elseif($_."Disabled?" -like 'Y'){''+$_."Disabled?"} else {''+$_."Disabled?"}}} ,"Create Date", "Default Database", "Enforce Password Policy" , "Enforce Password Expiration" + $htmlreport += $sqlauth | ConvertTo-HTML -PreContent "

SQL Server Authentication Logins



" -Fragment | out-string +} +else{ + $htmlreport += ConvertTo-HTML -PreContent "

SQL Server Authentication Logins


" -PostContent "

Error Encountered in reporting the details. Check the script log for details. If nothing is reported in the log then no details exist for this collector.


" -Fragment | out-string +} +if($serlvlperm){ + $serlvlperm = $serlvlperm | select "Grantee Login", Type, "Grantor Login", Permission, State + $htmlreport += $serlvlperm | ConvertTo-HTML -PreContent "

Server Level Permissions



" -Fragment | out-string +} +else{ + $htmlreport += ConvertTo-HTML -PreContent "

Server Level Permissions


" -PostContent "

Error Encountered in reporting the details. Check the script log for details. If nothing is reported in the log then no details exist for this collector.


" -Fragment | out-string +} +if($serrolmem){ + $serrolmem = $serrolmem | select Login, @{n="Role";e={if($_."Role" -like 'sysadmin'){''+$_."Role"}else{$_."Role"}}} + $htmlreport += $serrolmem | ConvertTo-HTML -PreContent "

Server Role Members



" -Fragment | out-string +} +else{ + $htmlreport += ConvertTo-HTML -PreContent "

Server Role Memebers


" -PostContent "

Error Encountered in reporting the details. Check the script log for details. If nothing is reported in the log then no details exist for this collector.


" -Fragment | out-string +} +if($dblvlperm){ + $dblvlperm = $dblvlperm | select Database, "Grantee Login", Type, "Grantor Login", Permission, "Applies To", State + $htmlreport += $dblvlperm | ConvertTo-HTML -PreContent "

Database Level Permissions



" -Fragment | out-string +} +else{ + $htmlreport += ConvertTo-HTML -PreContent "

Database Level Permissions


" -PostContent "

Error Encountered in reporting the details. Check the script log for details. If nothing is reported in the log then no details exist for this collector.


" -Fragment | out-string +} +if($dbrolmem){ + $dbrolmem = $dbrolmem | select Database, Login,@{n="Role";e={if($_."Role" -like 'db_owner'){''+$_."Role"}else{$_."Role"}}} + $htmlreport += $dbrolmem | ConvertTo-HTML -PreContent "

Database Role Members



" -Fragment | out-string +} +else{ + $htmlreport += ConvertTo-HTML -PreContent "

Database Role Members


" -PostContent "

Error Encountered in reporting the details. Check the script log for details. If nothing is reported in the log then no details exist for this collector.


" -Fragment | out-string +} +if($jobowners){ + $jobowners = $jobowners | select Job, @{n="Owner";e={if($_.Owner -like 'sa' ){''+$_.Owner} else{''+$_.Owner} }}, "Login Type" + $htmlreport += $jobowners | ConvertTo-HTML -PreContent "

SQL Server Job Owners



" -Fragment | out-string +} +else{ + $htmlreport += ConvertTo-HTML -PreContent "

SQL Server Job Owners


" -PostContent "

Error Encountered in reporting the details. Check the script log for details. If nothing is reported in the log then no details exist for this collector.


" -Fragment | out-string +} +if($servaccount){ + $servaccount = $servaccount | select @{n="Service Name";e={$_.caption}}, @{n="Service Account";e={if($_.startname -like 'Local*' -or $_.startname -like 'NT*'){''+$_.startname}else{''+$_.startname}}}, StartMode + $htmlreport += $servaccount | ConvertTo-HTML -PreContent "

Login Account for SQL Services



" -Fragment | out-string +} +else{ + $htmlreport += ConvertTo-HTML -PreContent "

Login Account for SQL Services


" -PostContent "

Error Encountered in reporting the details. Check the script log for details. If nothing is reported in the log then no details exist for this collector.


" -Fragment | out-string +} +if($sqlprotocols){ + $sqlprotocols = $sqlprotocols | select "Protocol Name", @{n="IsEnabled?";e={if($_."Protocol Name" -like 'Named*' -or $_."Protocol Name" -like 'VIA' ){if($_.IsEnabled -like 'True'){''+$_.IsEnabled} else{''+$_.IsEnabled}} else{''+$_.IsEnabled}}} + $htmlreport += $sqlprotocols | ConvertTo-HTML -PreContent "

SQL Server Network Protocols



" -Fragment | out-string +} +else{ + $htmlreport += ConvertTo-HTML -PreContent "

SQL Server Network Protocols


" -PostContent "

Error Encountered in reporting the details. Check the script log for details. If nothing is reported in the log then no details exist for this collector.


" -Fragment | out-string +} +if($tcpports){ + $statictcpports = @{} + $dynamictcpports = @{} + $statictcpports = $tcpports | Where-Object {$_.Name -like 'TcpPort'} | Select Value + $dynamictcpports = $tcpports | Where-Object {$_.Name -like 'TcpDynamicPorts'} | Select Value + $dport = $($dynamicportvalue).Value + $sport = $($statictcpports).Value + if ($sport) { + $htmlreport += ConvertTo-HTML -PreContent "

SQL TCP Port Settings



" -PostContent "

SQL Server Instance [$instance] is set to use Static Port # : $sport.


" -Fragment | out-string + } + else { + $htmlreport += ConvertTo-HTML -PreContent "

SQL TCP Port Settings



" -PostContent "

SQL Server Instance [$instance] is set to use Dynamic # : $dport.


" -Fragment | out-string + } +} +else{ + $htmlreport += ConvertTo-HTML -PreContent "

SQL TCP Port Settings


" -PostContent "

Error Encountered in reporting the details. Check the script log for details. If nothing is reported in the log then no details exist for this collector.


" -Fragment | out-string +} +if($loginaudit){ + $loginaudit = $loginaudit | select @{n="Login Auditing";e={$_.LoginAuditing}}, @{n="Recommended Setting";e={if($_.LoginAuditing -like 'Failed Logins Only'){''+"Y"}else{''+"N"}}} + $htmlreport += $loginaudit | ConvertTo-HTML -PreContent "

SQL Server Login Auditing



" -Fragment | out-string +} +else{ + $htmlreport += ConvertTo-HTML -PreContent "

SQL Server Login Auditing


" -PostContent "

Error Encountered in reporting the details. Check the script log for details. If nothing is reported in the log then no details exist for this collector.


" -Fragment | out-string +} +if($config){ + $config = $config | select @{n="Configuration Parameter";e={$_.s_name}}, @{n="IsEnabled?";e={if($_.CurrentSetting -like 'Enabled'){''+$_.CurrentSetting}else{''+$_.CurrentSetting} }} + $htmlreport += $config | ConvertTo-HTML -PreContent "

SQL Sever Global Configuration Parameters



" -Fragment | out-string +} +else{ + $htmlreport += ConvertTo-HTML -PreContent "

SQL Sever Global Configuration Parameters


" -PostContent "

Error Encountered in reporting the details. Check the script log for details. If nothing is reported in the log then no details exist for this collector.


" -Fragment | out-string +} + +$htmlreport = $htmlreport.Replace('<td bgcolor="#FFFF00">','') +$htmlreport = $htmlreport.Replace('<td bgcolor="#FF0000">','') +$htmlreport = $htmlreport.Replace('<td bgcolor="#00CC33">','') + +$body = convertto-html -Head $css -PostContent "$htmlreport

END OF REPORT

" -body "

SQL SERVER SECURITY REVIEW

Report Generated on $(Get-date -DisplayHint date -Format g)

" -Title "SQL SERVER SECURITY REVIEW" | out-string +$body = $body.Replace("`r`n
","") +$body | Out-File "$report" + diff --git a/PowerShell/Get-SQLUnattendedFile.ps1 b/PowerShell/Get-SQLUnattendedFile.ps1 new file mode 100644 index 00000000..0be51306 --- /dev/null +++ b/PowerShell/Get-SQLUnattendedFile.ps1 @@ -0,0 +1,160 @@ +<# +.Synopsis + The objective of the script is to make use of Input file in which it consists of list of database server instances as a source for various parts of the script. + + .Description + This article is taking the sledge hammer approach and searching for mdf's and then comparing them against files which are available on the listed drive. + Function to log Output and display the details on the console. + + .Parameter InputFile + Path to the file where the input details are saved. + Example: c:\InputServer.txt + + .Parameter LogFile + The file logs all the information about the detached files or orphan file along with its size. This also contains the source of the server. + + .Example + Write-Log -Message "$($Server) is reachable and starting the process " -Logfile $Logfile + + .Example + Write-Log -Message "$(.Server) message " -Logfile $Logfile + + .Example + Get-SQLUnattendedFile -inputfile c:\server.txt -logfile c:\DetachedFileList.txt + + .Link + https://powershellsql.wordpress.com/ Jump + https://www.sqlshack.com/multi-server-script-find-orphaned-data-files-using-powershell + +#> + + Function Get-SQLUnattendedFile +{ + [CmdletBinding(SupportsShouldProcess=$true,ConfirmImpact='Low')] + Param( + [Parameter(Mandatory=$true, + Position=0)] + [String]$inputFile, + [Parameter(Mandatory=$true, + Position=1)] + [String]$logfile, + [Parameter(Mandatory=$true, + Position=2)] + [String]$extension='mdf' + ) + +#Prepare Log file + +if (Test-Path $logFile) { + Remove-Item $logFile +} + +$ErrorActionPreference = 'Stop' + +$sqlservers = Get-Content $inputFile + +# Prepare headers for the log file for each execution of script + +Add-Content $logFile "#################################################################" +Add-Content $logFile "Unattended Database File Report" +Add-Content $logFile "Generated $(get-date)" +Add-Content $logFile "Generated from $(gc env:computername)" +Add-Content $logFile "#################################################################" + +Function Write-Log { + [CmdletBinding()] + Param( + [Parameter(Mandatory=$False)] + [ValidateSet("INFO","WARN","ERROR")] + [String] + $Level = "INFO", + + [Parameter(Mandatory=$True)] + [string] + $Message, + + [Parameter(Mandatory=$False)] + [string] + $logfile + ) + + $Stamp = (Get-Date).toString("yyyy/MM/dd HH:mm:ss") + $Line = "$Stamp $Level $Message" + If($logfile) { + Add-Content $logfile -Value $Line + } + Else { + Write-Output $Line + } +} + + +Try{ +[System.Reflection.Assembly]::LoadWithPartialName(“Microsoft.SqlServer.Smo”) | Out-Null + +#for printing found instances data uncomment next line +#$Instances + +foreach ($instance in $sqlservers) +{ + If (!(Test-Connection $instance -count 1 -quiet)) { + Write-host "$($instance) is not reachable" + } + else + { + #Write the Progress to console + write-host "$($instance) is reachable and starting the process " + + #Creating PowerShell custom objects + $colAttachedMDFs = @() + $files =@() + + #Connect to the given instance. Piping to Out-null to avoid showing loading echo in output + $srv = new-Object Microsoft.SqlServer.Management.Smo.Server($instance) + + #get a list of all attached database file names + foreach ($db in $srv.Databases ) + { + foreach ($fg in $db.Filegroups) + { + foreach ($file in $fg.Files) + { + #Adding to list of attached DBs + $colAttachedMDFs += $file.Filename + } + } + } + + #select local logical drives + $drives=(get-wmiobject -class “Win32_LogicalDisk” -ComputerName $instance) | ?{$_.drivetype -eq 3 -and ($_.deviceID -eq "F:" -OR $_.deviceID -eq "G:" -OR $_.deviceID -eq "H:" -OR $_.deviceID -eq "I:" -OR $_.deviceID -eq "J:" )} | foreach-object {$_.name} + #cycle over drives + foreach ($drive in $drives) + { + $filter = "extension='$extension' AND Drive='$drive'" + $files +=Get-WmiObject -Class CIM_Datafile -Filter $filter -ComputerName $instance |select name,FileName,@{Name="FileSizeMB";Expression={[math]::Round($_.FileSize/1MB,2)}} + } + + #$files + foreach ($mdf in $files) + { + if (-not ($colAttachedMDFs -contains $mdf.name)) + { + #Adding to list of unattached DBs + $colMDFsToAttach += $mdf.name + [Environment]::NewLine + Write-Log -Message "On $($instance) -> The filename $($mdf.FileName) in this path $($mdf.name) with a size of $($mdf.fileSizeMB) MB is left unattended " -Logfile $Logfile + } + } + + } + } +} +Catch{ + #Catch error, rethrow and raise exit code + $_ + } +$colMDFsToAttach +} + +Get-SQLUnattendedFile -inputfile c:\server.txt -logfile c:\DetachedFileList.txt + +Invoke-item c:\DetachedFileList.txt \ No newline at end of file diff --git a/PowerShell/Get-SystemInfo.ps1 b/PowerShell/Get-SystemInfo.ps1 new file mode 100644 index 00000000..260d6396 --- /dev/null +++ b/PowerShell/Get-SystemInfo.ps1 @@ -0,0 +1,208 @@ +<# +.SYNOPSIS + Generate a PowerShell HTML Report. +.PARAMETR + computername +.PARAMETR + Path +.PARAMETR + ImagePath +.EXAMPLE +Get-Item -Path $Path +.NOTES + Author: Jeff Hicks + Created date: 2017-08-07 + Original Link: https://www.petri.com/adding-script-to-your-powershell-html-reports +#> + + +[cmdletbinding()] +Param( +[string]$computername = $env:COMPUTERNAME, +#the path to the final htm report +[string]$Path = "C:\temp\systemreport.htm", +#set your own default graphic or delete default value +[string]$ImagePath = "c:\scripts\db.png" +) + +#region helper functions + +Function Get-SystemInfo { +[cmdletbinding()] +Param([string]$Computername = $env:COMPUTERNAME) + +$cs = Get-CimInstance -ClassName Win32_computersystem #-ComputerName $Computername +#this assumes a single processor +$proc = Get-CimInstance -ClassName win32_processor #-ComputerName $Computername + +$data = [ordered]@{ +TotalPhysicalMemGB = $cs.TotalPhysicalMemory/1GB -as [int] +NumProcessors = $cs.NumberOfProcessors +NumLogicalProcessors = $cs.NumberOfLogicalProcessors +HyperVisorPresent = $cs.HypervisorPresent +DeviceID = $proc.DeviceID +Name = $proc.Name +MaxClock = $proc.MaxClockSpeed +L2size = $proc.L2CacheSize +L3Size = $proc.L3CacheSize + +} + +New-Object -TypeName PSObject -Property $data + +} + +Function Get-DiskInfo { +[cmdletbinding()] +Param([string]$Computername = $env:COMPUTERNAME) + +Get-CimInstance -ClassName win32_logicaldisk -filter "drivetype=3" -ComputerName $Computername | +Select DeviceID, +@{Name="SizeGB";Expression = {$_.size/1gb -as [int]}}, +@{Name="FreeGB";Expression={ [math]::round($_.Freespace/1gb,2)}}, +@{Name="PctFree";Expression={[math]::round(($_.freespace/$_.size)*100,2)}} + +} + +#endregion + +$fragments = @() + +if (Test-Path $ImagePath) { + #insert a graphic + $ImageBits = [Convert]::ToBase64String((Get-Content $ImagePath -Encoding Byte)) + $ImageFile = Get-Item $ImagePath + $ImageType = $ImageFile.Extension.Substring(1) #strip off the leading . + $ImageTag = "$($ImageFile.Name)" +} +else { + Write-Warning "Could not find image file $ImagePath" +} +$top = @" + + + + +
$ImageTag

System Report - $Computername

+"@ + +$fragments+=$top + +$fragments+="+/-" + +$Text = "Operating System" +$div = $Text.Replace(" ","_") +$fragments+= "

$Text

" + +$fragments+= Get-Ciminstance -ClassName win32_operatingsystem -ComputerName $computername | +Select @{Name="Operating System";Expression= {$_.Caption}},Version,InstallDate | +ConvertTo-Html -Fragment -As List +$fragments+="
" + +$Text = "System Information" +$div = $Text.Replace(" ","_") +$fragments+= "

$Text

" + +$fragments+= Get-systeminfo -Computername $computername| ConvertTo-Html -Fragment -As List +$fragments+="
" + +$Text = "Disk Information" +$div = $Text.Replace(" ","_") +$fragments+= "

$Text

" + +#highlight low free space in red +[xml]$html = Get-DiskInfo -Computername $computername| ConvertTo-Html -Fragment +for ($i=1;$i -le $html.table.tr.count-1;$i++) { + if ($html.table.tr[$i].td[-1] -le 20) { + $class = $html.CreateAttribute("class") + $class.value = 'alert' + $html.table.tr[$i].childnodes[3].attributes.append($class) | out-null + } +} + +$fragments+= $html.InnerXml +$fragments+="
" + +$Text = "EventLog Info" +$div = $Text.Replace(" ","_") +$fragments+= "

$Text

" + +[xml]$html = Get-Eventlog -List -ComputerName $computername | +Select @{Name="Max(K)";Expression = {"{0:n0}" -f $_.MaximumKilobytes }}, +@{Name="Retain";Expression = {$_.MinimumRetentionDays }}, +OverFlowAction,@{Name="Entries";Expression = {"{0:n0}" -f $_.entries.count}}, +@{Name="Log";Expression = {$_.LogDisplayname}} | ConvertTo-Html -Fragment + +for ($i=1;$i -le $html.table.tr.count-1;$i++) { + if ($html.table.tr[$i].td[3] -eq 0) { + $class = $html.CreateAttribute("class") + $class.value = 'alert' + $html.table.tr[$i].attributes.append($class) | out-null + } +} + +$fragments+= $html.InnerXml +$fragments+="
" + +$fragments+= "

$(get-date)

" + + +$head = @" +System Report - $($env:computername) + + + + +"@ + + +$convertParams = @{ + head = $head + body = $fragments +} + +convertto-html @convertParams | out-file -FilePath $Path + +Get-Item -Path $Path \ No newline at end of file diff --git a/PowerShell/Get-Windows-Block-Size.ps1 b/PowerShell/Get-Windows-Block-Size.ps1 new file mode 100644 index 00000000..b6320523 --- /dev/null +++ b/PowerShell/Get-Windows-Block-Size.ps1 @@ -0,0 +1,27 @@ +<# +.SYNOPSIS + Get disk block size +.DESCRIPTION + Get disk block size +.PARAMETR + serverList - specify path to server list or live empty +.EXAMPLE + Just run script +.NOTES + Requires: Powershell version 3 or higher + Tested on: Windows 10, 7 + Author: Naveen Kumar + Author Modified: Konstantin Tranov kast218@gmail.com + Created date: 2017-09-11 + Last modified: 2017-09-11 +#> + +$serverList = "C:\ServerList.txt"; + +if(Test-Path $serverList){ +$ServerList = Get-Content $serverList; +Get-WmiObject -Class Win32_volume -Filter "FileSystem='NTFS'" -ComputerName $serverList | Select-Object PSComputerName, Name, Lable, BlockSize | Format-Table -AutoSize; +} +else{ +Get-CimInstance -ClassName Win32_Volume -Filter "FileSystem='NTFS'" | Select-Object Name, Label, BlockSize | Format-Table -AutoSize; +} diff --git a/PowerShell/Get-port-information-for-SQL-Server-instances.ps1 b/PowerShell/Get-port-information-for-SQL-Server-instances.ps1 new file mode 100644 index 00000000..4f1a243c --- /dev/null +++ b/PowerShell/Get-port-information-for-SQL-Server-instances.ps1 @@ -0,0 +1,99 @@ +<# +.SYNOPSIS + Automated way to get all port information for SQL Server instances +.DESCRIPTION + Automated way to get all port information for SQL Server instances via powershell script +.EXAMPLE + ./Get-port-information-for-SQL-Server-instances.ps1 +.LINK + Script posted over: + https://www.mssqltips.com/sqlservertip/3542/automated-way-to-get-all-port-information-for-sql-server-instances/ +.NOTES + Author: K. Brian Kelley + Created Date: 2015-09-03 +#> + +# Store Current Location to return to it when we're done +Push-Location; + +# Let's get all the possible hives in the registry on a given system +# We'll use Where-Object to filter down to only those hives which begin with MSSQL +# This gets rid SSAS, SSIS, and SSRS for versions of SQL Server 2008 and up. It also +# gets rid of any hives that are under "Microsoft SQL Server" that aren't for instance +# configuration (or at least not what we're looking for) +Get-ChildItem -Path 'HKLM:\SOFTWARE\Microsoft\Microsoft SQL Server' | Where-Object {$_.Name -like '*MSSQL*'} | foreach { + + # Get Instance Name + $props = Get-ItemProperty -path $_.PSPath; + + # If there is no default value, this isn't an instance. We need to trap in case the + # property doesn't exist + try { + $InstanceName = $props.psobject.Properties["(default)"].value; + } + catch { + $InstanceName = ""; + } + + # If there is a valid instance name, proceed farther + if ($InstanceName.length -gt 0) { + + # Navigate the child keys + foreach ($key in Get-ChildItem -path $_.pspath){ + + # Find entries belonging to actual database engine instances + if ($key.name -like "*MSSQLServer*") + { + + # Navigate to the key where the TCP settings are stored + Set-Location -path $key.pspath; + cd .\SuperSocketNetLib\tcp -ErrorAction SilentlyContinue; + + # Ensure we're only reporting against the right keys + + $TCPKey = Get-Location; + + if ($TCPKey -like '*SuperSocketNetLib*') { + + $TCPProps = Get-ItemProperty $TCPKey; + + # Find out if TCP is enabled + $Enabled = $TCPProps.psobject.Properties["enabled"].value; + + # Begin the reporting + Write-Host "Instance Name: $InstanceName"; + Write-Host "------------------------------------------------------------------------------"; + + # If TCP is not enabled, there's point finding all the ports. Therefore, we check. + if ($Enabled -eq 1) + { + foreach ($Key in gci $TCPKey) + { + $IPprops = Get-ItemProperty $Key.pspath; + $IPAddress = $IPProps.psobject.Properties["IpAddress"].Value; + + # For the Key IPAll, there is no IPAddress value. therefore, we trap for it. + if ($IPAddress -eq $null) + { + $IPAddress = "All" + } + + Write-Host " IP Address: $IPAddress"; + Write-Host " Dyn. Ports: ", $IPProps.psobject.Properties["TcpDynamicPorts"].Value; + Write-Host " Sta. Ports: ", $IPProps.psobject.Properties["TcpPort"].Value; + + } + } else { + Write-Host " TCP not enabled." + } + + Write-Host "------------------------------------------------------------------------------"; + Write-Host ""; + } + } + } + } +} + +# Return to original location +Pop-Location; diff --git a/PowerShell/Multiply_SQL_Server_Connections.ps1 b/PowerShell/Multiply_SQL_Server_Connections.ps1 index dbbf531e..d839a3e5 100644 --- a/PowerShell/Multiply_SQL_Server_Connections.ps1 +++ b/PowerShell/Multiply_SQL_Server_Connections.ps1 @@ -1,66 +1,66 @@ -<# -.SYNOPSIS - Creates multiply connections to a SQL Server -.DESCRIPTION - This script creates a number of connections ($MaxConnections) - to a SQL Server instance ($Server) that connect to a random database and exist/run for - a certain amount of time ($WaitType/$WaitTime) - Driver variables -.PARAMETER MaxConnections - Number of parallel connections -.PARAMETER Server - Server to connect to -.PARAMETER WaitType - Type of wait. DELAY or TIME - If DELAY then wait for the amount of time. - If TIME then wait until the time specified. - Note: Connections are only exist until the wait is over. - They are active the whole time. -.PARAMETER WaitLength - Length of wait. Format is HH:MM:SS -.EXAMPLE - C:\PS>Multiply_SQL_Server_Connections.ps1 -.NOTES - Author: Kenneth Fisher - Original Link: http://sqlstudies.com/2016/02/24/powershell-script-to-create-multiple-sql-server-connections/ - Created Date: 2016-02-24 -#> -$MaxConnections = 2; # Number of parallel connections -$Server= "(local)\sql2014cs"; # Server to connect to -$WaitType="DELAY"; # Type of wait: DELAY or TIME -$WaitLength="00:00:10"; # Length of wait. Format is HH:MM:SS - # If DELAY then wait for the amount of time. - # If TIME then wait until the time specified. - # Note: Connections are only exist until the wait is over. - # They are active the whole time. - -#Set Initial collections and objects -$SqlInstance = New-Object Microsoft.SqlServer.Management.Smo.Server $Server; -$DbConnections = @(); -$dbs = $SqlInstance.Databases | Where-Object {$_.IsSystemObject -eq 0}; - -#Build DB connection array -for($i=0;$i -le $MaxConnections-1;$i++){ - $randdb = Get-Random -Minimum 1 -Maximum $dbs.Count - $DbConnections += $dbs[$randdb].Name -} - -#Loop through DB Connection array, create script block for establishing SMO connection/query -#Start-Job for each script block -foreach ($DBName in $DbConnections ) { - -# All of that extra information after "Smo" tells it to load just v12 (for when you have multiple -# versions of SQL installed.) Note: V12 is 2014. - $cmdstr =@" -`Add-Type -AssemblyName "Microsoft.SqlServer.Smo,Version=$(12).0.0.0,Culture=neutral,PublicKeyToken=89845dcd8080cc91" -`[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.Smo") -`$SqlConn = New-Object Microsoft.SqlServer.Management.Smo.Server ("$Server") -`$SqlConn.Databases['$DBName'].ExecuteNonQuery("WAITFOR $WaitType '$WaitLength'") -"@ - -#Uncomment the next like to print the command string for debugging -# $cmdstr -#Execute script block in jobs to run the command asyncronously -$cmd = [ScriptBlock]::Create($cmdstr) -Start-Job -ScriptBlock $cmd -} +<# +.SYNOPSIS + Creates multiply connections to a SQL Server +.DESCRIPTION + This script creates a number of connections ($MaxConnections) + to a SQL Server instance ($Server) that connect to a random database and exist/run for + a certain amount of time ($WaitType/$WaitTime) + Driver variables +.PARAMETER MaxConnections + Number of parallel connections +.PARAMETER Server + Server to connect to +.PARAMETER WaitType + Type of wait. DELAY or TIME + If DELAY then wait for the amount of time. + If TIME then wait until the time specified. + Note: Connections are only exist until the wait is over. + They are active the whole time. +.PARAMETER WaitLength + Length of wait. Format is HH:MM:SS +.EXAMPLE + C:\PS>Multiply_SQL_Server_Connections.ps1 +.NOTES + Author: Kenneth Fisher + Original Link: http://sqlstudies.com/2016/02/24/powershell-script-to-create-multiple-sql-server-connections/ + Created Date: 2016-02-24 +#> +$MaxConnections = 2; # Number of parallel connections +$Server= "(local)\sql2014cs"; # Server to connect to +$WaitType="DELAY"; # Type of wait: DELAY or TIME +$WaitLength="00:00:10"; # Length of wait. Format is HH:MM:SS + # If DELAY then wait for the amount of time. + # If TIME then wait until the time specified. + # Note: Connections are only exist until the wait is over. + # They are active the whole time. + +#Set Initial collections and objects +$SqlInstance = New-Object Microsoft.SqlServer.Management.Smo.Server $Server; +$DbConnections = @(); +$dbs = $SqlInstance.Databases | Where-Object {$_.IsSystemObject -eq 0}; + +#Build DB connection array +for($i=0;$i -le $MaxConnections-1;$i++){ + $randdb = Get-Random -Minimum 1 -Maximum $dbs.Count + $DbConnections += $dbs[$randdb].Name +} + +#Loop through DB Connection array, create script block for establishing SMO connection/query +#Start-Job for each script block +foreach ($DBName in $DbConnections ) { + +# All of that extra information after "Smo" tells it to load just v12 (for when you have multiple +# versions of SQL installed.) Note: V12 is 2014. + $cmdstr =@" +`Add-Type -AssemblyName "Microsoft.SqlServer.Smo,Version=$(12).0.0.0,Culture=neutral,PublicKeyToken=89845dcd8080cc91" +`[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.Smo") +`$SqlConn = New-Object Microsoft.SqlServer.Management.Smo.Server ("$Server") +`$SqlConn.Databases['$DBName'].ExecuteNonQuery("WAITFOR $WaitType '$WaitLength'") +"@ + +#Uncomment the next like to print the command string for debugging +# $cmdstr +#Execute script block in jobs to run the command asyncronously +$cmd = [ScriptBlock]::Create($cmdstr) +Start-Job -ScriptBlock $cmd +} diff --git a/PowerShell/ParameterCaseCheck.ps1 b/PowerShell/ParameterCaseCheck.ps1 new file mode 100644 index 00000000..66cb0b71 --- /dev/null +++ b/PowerShell/ParameterCaseCheck.ps1 @@ -0,0 +1,38 @@ +<# +.Synopsis + Search for any parameter that does not match the column name. + +.OUTPUTS + Any parameter that does not match the column name + +.NOTES + Original link: https://nocolumnname.blog/2018/05/25/finding-parameters-that-do-not-match-column-names/ + Author: Shane O'Neill +#> + +$PatternMatch = '(?\w+)\s*=\s*@(?\w+)' + +$FindStoredProcedureParameters = @{ + SqlInstance = 'localhost' + Database = 'master' + Pattern = $PatternMatch + IncludeSystemDatabases = $true +} + +Find-DbaStoredProcedure @FindStoredProcedureParameters | + ForEach-Object -Process { + $ParentRow = $_ + + $_ | ForEach-Object StoredProcedureTextFound | Select-String -Pattern $PatternMatch -AllMatches | ForEach-Object Matches | ForEach-Object -Process { + [PSCustomObject]@{ + ServerName = $ParentRow.SqlInstance + DatabaseName = $ParentRow.Database + SchemaName = $ParentRow.Schema + ProcedureName = $ParentRow.Name + TextFound = ($_.Groups | Where-Object Name -eq '0').Value + ColumnName = ($_.Groups | Where-Object Name -eq 'ColumnName').Value + ParameterName = ($_.Groups | Where-Object Name -eq 'ParameterName').Value + } + } +} | Where-Object { ($_.ColumnName -ne $_.ParameterName) } | + Select-Object -Property * -Unique diff --git a/PowerShell/Parse-TSQL.ps1 b/PowerShell/Parse-TSQL.ps1 new file mode 100644 index 00000000..89725a4c --- /dev/null +++ b/PowerShell/Parse-TSQL.ps1 @@ -0,0 +1,39 @@ +#requires -version 5.0 +#requires -modules dbatools,pester + +<# +.Synopsis + Ensure that some SQL Scripts in a directory would parse so there was some guarantee that they were valid T-SQL. + +.OUTPUTS + Any invalid TSQL + +.NOTES + Original link: https://sqldbawithabeard.com/2018/07/25/a-powershell-pester-check-for-parsing-sql-scripts/ + Author: Rob Sewell +#> + +Describe "Testing SQL" { + Context "Running Parser" { + ## Load assembly + $dbatoolsPath = 'C:\Program Files\WindowsPowerShell\Modules\dbatools'; + + $Parserdll = (Get-ChildItem $dbatoolsPath -Include Microsoft.SqlServer.Management.SqlParser.dll -Recurse)[0].FullName; + [System.Reflection.Assembly]::LoadFile($Parserdll) | Out-Null; + + $TraceDll = (Get-ChildItem $dbatoolsPath -Include Microsoft.SqlServer.Diagnostics.Strace.dll -Recurse)[0].FullName; + [System.Reflection.Assembly]::LoadFile($TraceDll) | Out-Null; + + $ParseOptions = New-Object Microsoft.SqlServer.Management.SqlParser.Parser.ParseOptions; + $ParseOptions.BatchSeparator = 'GO'; + $files = Get-ChildItem -Path $Env:Directory -Include *.sql -Recurse; ## This variable is set as a Build Process Variable or put your path here + $files.ForEach{ + It "$($Psitem.FullName) Should Parse SQL correctly" { + $filename = $Psitem.FullName; + $sql = Get-Content -LiteralPath "$fileName"; + $Script = [Microsoft.SqlServer.Management.SqlParser.Parser.Parser]::Parse($SQL, $ParseOptions); + $Script.Errors | Should -BeNullOrEmpty; + } + } + } +} diff --git a/PowerShell/Read-XEL-File.ps1 b/PowerShell/Read-XEL-File.ps1 new file mode 100644 index 00000000..9dc3f10f --- /dev/null +++ b/PowerShell/Read-XEL-File.ps1 @@ -0,0 +1,40 @@ +#requires -version 3.0 + +<# +.Synopsis + Read Extended Event .xel file. + +.OUTPUTS + First 50 rows of .xel file delimeted columns by ; and rows by \r\n + +.NOTES + Original link: https://sqlserverpowershell.com/2017/04/06/read-an-extended-events-file-via-powershell/ + Author: Scott Newman +#> + +$xelFilePath = 'c:\Program Files\Microsoft SQL Server\MSSQL14.MSSQLSERVER\MSSQL\Log\system_health_0_131916022434590000.xel'; +$xelDDLPath = 'C:\Program Files\Microsoft SQL Server\140\Shared\'; + +Add-Type -Path ($xelDDLPath+'Microsoft.SqlServer.XE.Core.dll'); +Add-Type -Path ($xelDDLPath+'Microsoft.SqlServer.XEvent.Linq.dll'); + +$events = New-Object Microsoft.SqlServer.XEvent.Linq.QueryableXEventData($xelFilePath) +$sb = New-Object System.Text.StringBuilder + +$events | select -First 50 | %{ + $event = $_ + [void]$sb.Append("$($event.Timestamp);;"); + + for($i=0;$i-lt($event.Fields.Count-1);$i++){ + [void]$sb.Append("$($event.Fields[$i].Value.ToString().Replace("`r`n", ''));;"); + } + + $event.Actions | %{ + $action = $_ + [void]$sb.Append("$($action.value.ToString().Replace("`r`n", ''));;"); + } + [void]$sb.Append("ServerName;;"); + + [void]$sb.AppendLine(); +} +$sb.ToString(); diff --git a/PowerShell/ResetSqlSaPassword.psm1 b/PowerShell/ResetSqlSaPassword.psm1 index c7c6e821..ac2a0b3f 100644 --- a/PowerShell/ResetSqlSaPassword.psm1 +++ b/PowerShell/ResetSqlSaPassword.psm1 @@ -1,338 +1,338 @@ -#Requires -Version 2 -Function Reset-SqlSaPassword { - <# - .SYNOPSIS - This function will allow administrators to regain access to SQL Servers in the event that passwords or access was lost. - - Supports SQL Server 2005 and above. Windows Server administrator access is required. - - .DESCRIPTION - This function allows administrators to regain access to local or remote SQL Servers by either resetting the sa password, adding sysadmin role to existing login, - or adding a new login (SQL or Windows) and granting it sysadmin privileges. - - This is accomplished by stopping the SQL services or SQL Clustered Resource Group, then restarting SQL via the command-line - using the /mReset-SqlSaPassword paramter which starts the server in Single-User mode, and only allows this script to connect. - - Once the service is restarted, the following tasks are performed: - - Login is added if it doesn't exist - - If login is a Windows User, an attempt is made to ensure it exists - - If login is a SQL Login, password policy will be set to OFF when creating the login, and SQL Server authentication will be set to Mixed Mode. - - Login will be enabled and unlocked - - Login will be added to sysadmin role - - If failures occur at any point, a best attempt is made to restart the SQL Server. - - In order to make this script as portable as possible, System.Data.SqlClient and Get-WmiObject are used (as opposed to requiring the Failover Cluster Admin tools or SMO). - If using this function against a remote SQL Server, ensure WinRM is configured and accessible. If this is not possible, run the script locally. - - Tested on Windows XP, 7, 8.1, Server 2012 and Windows Server Technical Preview 2. - Tested on SQL Server 2005 SP4 through 2016 CTP2. - - THIS CODE IS PROVIDED "AS IS", WITH NO WARRANTIES. - - .PARAMETER SqlServer - The SQL Server instance. SQL Server must be 2005 and above, and can be a clustered or stand-alone instance. - - .PARAMETER Login - By default, the Login parameter is "sa" but any other SQL or Windows account can be specified. If a login does not - currently exist, it will be added. - - When adding a Windows login to remote servers, ensure the SQL Server can add the login (ie, don't add WORKSTATION\Admin to remoteserver\instance. Domain users and - Groups are valid input. - - .NOTES - Author: Chrissy LeMaire - Requires: Admin access to server (not SQL Services), - Remoting must be enabled and accessible if $sqlserver is not local - DateUpdated: 2015-June-06 - Version: 0.8 - - .LINK - https://gallery.technet.microsoft.com/scriptcenter/Reset-SQL-SA-Password-15fb488d - - .EXAMPLE - Reset-SqlSaPassword -SqlServer sqlcluster - - Prompts for password, then resets the "sa" account password on sqlcluster. - - .EXAMPLE - Reset-SqlSaPassword -SqlServer sqlserver\sqlexpress -Login ad\administrator - - Adds the domain account "ad\administrator" as a sysadmin to the SQL instance. - If the account already exists, it will be added to the sysadmin role. - - .EXAMPLE - Reset-SqlSaPassword -SqlServer sqlserver\sqlexpress -Login sqladmin - - Prompts for passsword, then adds a SQL Login "sqladmin" with sysadmin privleges. - If the account already exists, it will be added to the sysadmin role and the password will be reset. - - #> - [CmdletBinding()] - param( - [Parameter(Mandatory = $true)] - [string]$SqlServer, - [string]$Login = "sa" - ) - - BEGIN { - Function ConvertTo-PlainText { - <# - .SYNOPSIS - Converts a SecureString to plain text - - .EXAMPLE - ConvertTo-PlainText $password - - .OUTPUT - String - - #> - [CmdletBinding()] - param( - [Parameter(Mandatory = $true)] - [Security.SecureString]$Password - ) - - $marshal = [Runtime.InteropServices.Marshal] - $plaintext = $marshal::PtrToStringAuto( $marshal::SecureStringToBSTR($Password) ) - return $plaintext - } - - Function Invoke-ResetSqlCmd { - <# - .SYNOPSIS - Executes a SQL statement against specified computer, and uses "Reset-SqlSaPassword" as the - Application Name. - - .EXAMPLE - Invoke-ResetSqlCmd -sqlserver $sqlserver -sql $sql - - .OUTPUT - $true or $false - - #> - [CmdletBinding()] - param( - [Parameter(Mandatory = $true)] - [string]$sqlserver, - [string]$sql - ) - try { - $connstring = "Data Source=$sqlserver;Integrated Security=True;Connect Timeout=2;Application Name=Reset-SqlSaPassword" - $conn = New-Object System.Data.SqlClient.SqlConnection $connstring - $conn.Open() - $cmd = New-Object system.data.sqlclient.sqlcommand($null, $conn) - $cmd.CommandText = $sql - $cmd.ExecuteNonQuery() | Out-Null - $cmd.Dispose() - $conn.Close() - $conn.Dispose() - return $true - } catch { return $false } - } - } - - PROCESS { - - # Get hostname - $baseaddress = $sqlserver.Split("\")[0] - if ($baseaddress -eq "." -or $baseaddress -eq $env:COMPUTERNAME) { - $ipaddr = "." - $hostname = $env:COMPUTERNAME - $baseaddress = $env:COMPUTERNAME - } - - # If server is not local, get IP address and NetBios name in case CNAME records were referenced in the SQL hostname - if ($baseaddress -ne $env:COMPUTERNAME) { - # Test Connection first using Test-Connection which requires ICMP access then failback to tcp if pings are blocked - Write-Output "Testing connection to $baseaddress" - $testconnect = Test-Connection -ComputerName $baseaddress -Count 1 -Quiet - - if ($testconnect -eq $false) { - Write-Output "First attempt using ICMP failed. Trying to connect using sockets. This may take up to 20 seconds." - $tcp = New-Object System.Net.Sockets.TcpClient - try { - $tcp.Connect($hostname, 135) - $tcp.Close() - $tcp.Dispose() - } catch { throw "Can't connect to $baseaddress either via ping or tcp (WMI port 135)" } - } - Write-Output "Resolving IP address" - try{ - $hostentry = [System.Net.Dns]::GetHostEntry($baseaddress) - $ipaddr = ($hostentry.AddressList | Where-Object { $_ -notlike '169.*' } | Select -First 1).IPAddressToString - } catch { throw "Could not resolve SqlServer IP or NetBIOS name" } - - Write-Output "Resolving NetBIOS name" - try { - $hostname = (Get-WmiObject -Class Win32_NetworkAdapterConfiguration -Filter IPEnabled=TRUE -ComputerName $ipaddr).PSComputerName - if ($hostname -eq $null) { $hostname = (nbtstat -A $ipaddr | Where-Object {$_ -match '\<00\> UNIQUE'} | ForEach-Object {$_.SubString(4,14)}).Trim() } - } - catch { throw "Could not access remote WMI object. Check permissions and firewall." } - } - - # Setup remote session if server is not local - if ($hostname -ne $env:COMPUTERNAME) { - try { $session = New-PSSession -ComputerName $hostname } - catch { - throw "Can't access $hostname using PSSession. Check your firewall settings and ensure Remoting is enabled or run the script locally." - } - } - - Write-Output "Detecting login type" - # Is login a Windows login? If so, does it exist? - if ($login -match "\\") { - Write-Output "Windows login detected. Checking to ensure account is valid." - $windowslogin = $true - try { - if ($hostname -eq $env:COMPUTERNAME) { - $account = New-Object System.Security.Principal.NTAccount($args) - $sid = $account.Translate([System.Security.Principal.SecurityIdentifier]) - } else { - Invoke-Command -ErrorAction Stop -Session $session -Args $login -ScriptBlock { - $account = New-Object System.Security.Principal.NTAccount($args) - $sid = $account.Translate([System.Security.Principal.SecurityIdentifier]) - } - } - } catch { throw "SQL Server cannot resolve Windows User or Group $login." } - } - - # If it's not a Windows login, it's a SQL login, so it needs a password. - if ($windowslogin -ne $true) { - Write-Output "SQL login detected" - do {$Password = Read-Host -AsSecureString "Please enter a new password for $login" } while ( $Password.Length -eq 0 ) - } - - # Get instance and service display name, then get services - $instance = ($sqlserver.split("\"))[1] - if ($instance -eq $null) { $instance = "MSSQLSERVER" } - $displayName = "SQL Server ($instance)" - - try { - $instanceservices = Get-Service -ComputerName $ipaddr | Where-Object { $_.DisplayName -like "*($instance)*" -and $_.Status -eq "Running" } - $sqlservice = Get-Service -ComputerName $ipaddr | Where-Object { $_.DisplayName -eq "SQL Server ($instance)" } - } catch { throw "Cannot connect to WMI on $hostname or SQL Service does not exist. Check permissions, firewall and SQL Server running status." } - - if ($instanceservices -eq $null) { throw "Couldn't find SQL Server instance. Check the spelling, ensure the service is running and try again." } - - Write-Output "Attempting to stop SQL Services" - - # Check to see if service is clustered. Clusters don't support -m (since the cluster service - # itself connects immediately) or -f, so they are handled differently. - try { $checkcluster = Get-Service -ComputerName $ipaddr | Where-Object { $_.Name -eq "ClusSvc" -and $_.Status -eq "Running" } } - catch { throw "Can't check services. Check permissions and firewall." } - - if ($checkcluster -ne $null) { - $clusterResource = Get-WmiObject -Authentication PacketPrivacy -Impersonation Impersonate -class "MSCluster_Resource" -namespace "root\mscluster" -computername $hostname | - Where-Object { $_.Name.StartsWith("SQL Server") -and $_.OwnerGroup -eq "SQL Server ($instance)" } - } - - # Take SQL Server offline so that it can be started in single-user mode - if ($clusterResource.count -gt 0) { - $isclustered = $true - try { $clusterResource | Where-Object { $_.Name -eq "SQL Server" } | ForEach-Object { $_.TakeOffline(60) } } - catch { - $clusterResource | Where-Object { $_.Name -eq "SQL Server" } | ForEach-Object { $_.BringOnline(60) } - $clusterResource | Where-Object { $_.Name -ne "SQL Server" } | ForEach-Object { $_.BringOnline(60) } - throw "Could not stop the SQL Service. Restarted SQL Service and quit." - } - } else { - try { - Stop-Service -InputObject $sqlservice -Force - Write-Output "Successfully stopped SQL service" - } catch { - Start-Service -InputObject $instanceservices - throw "Could not stop the SQL Service. Restarted SQL service and quit." - } - } - - # /mReset-SqlSaPassword Starts an instance of SQL Server in single-user mode and only allows this script to connect. - Write-Output "Starting SQL Service from command line" - try { - if ($hostname -eq $env:COMPUTERNAME) { - $netstart = net start ""$displayname"" /mReset-SqlSaPassword 2>&1 - if ("$netstart" -notmatch "success") { throw } - } - else { - $netstart = Invoke-Command -ErrorAction Stop -Session $session -Args $displayname -ScriptBlock { net start ""$args"" /mReset-SqlSaPassword } 2>&1 - foreach ($line in $netstart) { - if ($line.length -gt 0) { Write-Output $line } - } - } - } catch { - Stop-Service -InputObject $sqlservice -Force -ErrorAction SilentlyContinue - - if ($isclustered) { - $clusterResource | Where-Object Name -eq "SQL Server" | ForEach-Object { $_.BringOnline(60) } - $clusterResource | Where-Object Name -ne "SQL Server" | ForEach-Object { $_.BringOnline(60) } - } else { - Start-Service -InputObject $instanceservices -ErrorAction SilentlyContinue - } - throw "Couldn't execute net start command. Restarted services and quit." - } - - Write-Output "Reconnecting to SQL instance" - try { Invoke-ResetSqlCmd -SqlServer $sqlserver -Sql "SELECT 1" | Out-Null } - catch { - try { - Start-Sleep 3 - Invoke-ResetSqlCmd -SqlServer $sqlserver -Sql "SELECT 1" | Out-Null - } catch { - Stop-Service Input-Object $sqlservice -Force -ErrorAction SilentlyContinue - if ($isclustered) { - $clusterResource | Where-Object { $_.Name -eq "SQL Server" } | ForEach-Object { $_.BringOnline(60) } - $clusterResource | Where-Object { $_.Name -ne "SQL Server" } | ForEach-Object { $_.BringOnline(60) } - } else { Start-Service -InputObject $instanceservices -ErrorAction SilentlyContinue } - throw "Could not stop the SQL Service. Restarted SQL Service and quit." - } - } - - # Get login. If it doesn't exist, create it. - Write-Output "Adding login $login if it doesn't exist" - if ($windowslogin -eq $true) { - $sql = "IF NOT EXISTS (SELECT name FROM master.sys.server_principals WHERE name = '$login') - BEGIN CREATE LOGIN [$login] FROM WINDOWS END" - if ($(Invoke-ResetSqlCmd -SqlServer $sqlserver -Sql $sql) -eq $false) { Write-Warning "Couldn't create login." } - } elseif ($login -ne "sa") { - # Create new sql user - $sql = "IF NOT EXISTS (SELECT name FROM master.sys.server_principals WHERE name = '$login') - BEGIN CREATE LOGIN [$login] WITH PASSWORD = '$(ConvertTo-PlainText $Password)', CHECK_POLICY = OFF, CHECK_EXPIRATION = OFF END" - if ($(Invoke-ResetSqlCmd -SqlServer $sqlserver -Sql $sql) -eq $false) { Write-Warning "Couldn't create login." } - } - - # If $login is a SQL Login, Mixed mode authentication is required. - if ($windowslogin -ne $true) { - Write-Output "Enabling mixed mode authentication" - Write-Output "Ensuring account is unlocked" - $sql = "EXEC xp_instance_regwrite N'HKEY_LOCAL_MACHINE', N'Software\Microsoft\MSSQLServer\MSSQLServer', N'LoginMode', REG_DWORD, 2" - if ($(Invoke-ResetSqlCmd -SqlServer $sqlserver -Sql $sql) -eq $false) { Write-Warning "Couldn't set to Mixed Mode." } - - $sql = "ALTER LOGIN [$login] WITH CHECK_POLICY = OFF - ALTER LOGIN [$login] WITH PASSWORD = '$(ConvertTo-PlainText $Password)' UNLOCK" - if ($(Invoke-ResetSqlCmd -SqlServer $sqlserver -Sql $sql) -eq $false) { Write-Warning "Couldn't unlock account." } - } - - Write-Output "Ensuring login is enabled" - $sql = "ALTER LOGIN [$login] ENABLE" - if ($(Invoke-ResetSqlCmd -SqlServer $sqlserver -Sql $sql) -eq $false) { Write-Warning "Couldn't enable login." } - - if ($login -ne "sa") { - Write-Output "Ensuring login exists within sysadmin role" - $sql = "EXEC sp_addsrvrolemember '$login', 'sysadmin'" - if ($(Invoke-ResetSqlCmd -SqlServer $sqlserver -Sql $sql) -eq $false) { Write-Warning "Couldn't add to syadmin role." } - } - - Write-Output "Finished with login tasks" - Write-Output "Restarting SQL Server" - Stop-Service -InputObject $sqlservice -Force -ErrorAction SilentlyContinue - if ($isclustered -eq $true) { - $clusterResource | Where-Object { $_.Name -eq "SQL Server" } | ForEach-Object { $_.BringOnline(60) } - $clusterResource | Where-Object { $_.Name -ne "SQL Server" } | ForEach-Object { $_.BringOnline(60) } - } else { Start-Service -InputObject $instanceservices -ErrorAction SilentlyContinue } - } - - END { - Write-Output "Script complete!" - } +#Requires -Version 2 +Function Reset-SqlSaPassword { + <# + .SYNOPSIS + This function will allow administrators to regain access to SQL Servers in the event that passwords or access was lost. + + Supports SQL Server 2005 and above. Windows Server administrator access is required. + + .DESCRIPTION + This function allows administrators to regain access to local or remote SQL Servers by either resetting the sa password, adding sysadmin role to existing login, + or adding a new login (SQL or Windows) and granting it sysadmin privileges. + + This is accomplished by stopping the SQL services or SQL Clustered Resource Group, then restarting SQL via the command-line + using the /mReset-SqlSaPassword paramter which starts the server in Single-User mode, and only allows this script to connect. + + Once the service is restarted, the following tasks are performed: + - Login is added if it doesn't exist + - If login is a Windows User, an attempt is made to ensure it exists + - If login is a SQL Login, password policy will be set to OFF when creating the login, and SQL Server authentication will be set to Mixed Mode. + - Login will be enabled and unlocked + - Login will be added to sysadmin role + + If failures occur at any point, a best attempt is made to restart the SQL Server. + + In order to make this script as portable as possible, System.Data.SqlClient and Get-WmiObject are used (as opposed to requiring the Failover Cluster Admin tools or SMO). + If using this function against a remote SQL Server, ensure WinRM is configured and accessible. If this is not possible, run the script locally. + + Tested on Windows XP, 7, 8.1, Server 2012 and Windows Server Technical Preview 2. + Tested on SQL Server 2005 SP4 through 2016 CTP2. + + THIS CODE IS PROVIDED "AS IS", WITH NO WARRANTIES. + + .PARAMETER SqlServer + The SQL Server instance. SQL Server must be 2005 and above, and can be a clustered or stand-alone instance. + + .PARAMETER Login + By default, the Login parameter is "sa" but any other SQL or Windows account can be specified. If a login does not + currently exist, it will be added. + + When adding a Windows login to remote servers, ensure the SQL Server can add the login (ie, don't add WORKSTATION\Admin to remoteserver\instance. Domain users and + Groups are valid input. + + .NOTES + Author: Chrissy LeMaire + Requires: Admin access to server (not SQL Services), + Remoting must be enabled and accessible if $sqlserver is not local + DateUpdated: 2015-June-06 + Version: 0.8 + + .LINK + https://gallery.technet.microsoft.com/scriptcenter/Reset-SQL-SA-Password-15fb488d + + .EXAMPLE + Reset-SqlSaPassword -SqlServer sqlcluster + + Prompts for password, then resets the "sa" account password on sqlcluster. + + .EXAMPLE + Reset-SqlSaPassword -SqlServer sqlserver\sqlexpress -Login ad\administrator + + Adds the domain account "ad\administrator" as a sysadmin to the SQL instance. + If the account already exists, it will be added to the sysadmin role. + + .EXAMPLE + Reset-SqlSaPassword -SqlServer sqlserver\sqlexpress -Login sqladmin + + Prompts for passsword, then adds a SQL Login "sqladmin" with sysadmin privleges. + If the account already exists, it will be added to the sysadmin role and the password will be reset. + + #> + [CmdletBinding()] + param( + [Parameter(Mandatory = $true)] + [string]$SqlServer, + [string]$Login = "sa" + ) + + BEGIN { + Function ConvertTo-PlainText { + <# + .SYNOPSIS + Converts a SecureString to plain text + + .EXAMPLE + ConvertTo-PlainText $password + + .OUTPUT + String + + #> + [CmdletBinding()] + param( + [Parameter(Mandatory = $true)] + [Security.SecureString]$Password + ) + + $marshal = [Runtime.InteropServices.Marshal] + $plaintext = $marshal::PtrToStringAuto( $marshal::SecureStringToBSTR($Password) ) + return $plaintext + } + + Function Invoke-ResetSqlCmd { + <# + .SYNOPSIS + Executes a SQL statement against specified computer, and uses "Reset-SqlSaPassword" as the + Application Name. + + .EXAMPLE + Invoke-ResetSqlCmd -sqlserver $sqlserver -sql $sql + + .OUTPUT + $true or $false + + #> + [CmdletBinding()] + param( + [Parameter(Mandatory = $true)] + [string]$sqlserver, + [string]$sql + ) + try { + $connstring = "Data Source=$sqlserver;Integrated Security=True;Connect Timeout=2;Application Name=Reset-SqlSaPassword" + $conn = New-Object System.Data.SqlClient.SqlConnection $connstring + $conn.Open() + $cmd = New-Object system.data.sqlclient.sqlcommand($null, $conn) + $cmd.CommandText = $sql + $cmd.ExecuteNonQuery() | Out-Null + $cmd.Dispose() + $conn.Close() + $conn.Dispose() + return $true + } catch { return $false } + } + } + + PROCESS { + + # Get hostname + $baseaddress = $sqlserver.Split("\")[0] + if ($baseaddress -eq "." -or $baseaddress -eq $env:COMPUTERNAME) { + $ipaddr = "." + $hostname = $env:COMPUTERNAME + $baseaddress = $env:COMPUTERNAME + } + + # If server is not local, get IP address and NetBios name in case CNAME records were referenced in the SQL hostname + if ($baseaddress -ne $env:COMPUTERNAME) { + # Test Connection first using Test-Connection which requires ICMP access then failback to tcp if pings are blocked + Write-Output "Testing connection to $baseaddress" + $testconnect = Test-Connection -ComputerName $baseaddress -Count 1 -Quiet + + if ($testconnect -eq $false) { + Write-Output "First attempt using ICMP failed. Trying to connect using sockets. This may take up to 20 seconds." + $tcp = New-Object System.Net.Sockets.TcpClient + try { + $tcp.Connect($hostname, 135) + $tcp.Close() + $tcp.Dispose() + } catch { throw "Can't connect to $baseaddress either via ping or tcp (WMI port 135)" } + } + Write-Output "Resolving IP address" + try{ + $hostentry = [System.Net.Dns]::GetHostEntry($baseaddress) + $ipaddr = ($hostentry.AddressList | Where-Object { $_ -notlike '169.*' } | Select -First 1).IPAddressToString + } catch { throw "Could not resolve SqlServer IP or NetBIOS name" } + + Write-Output "Resolving NetBIOS name" + try { + $hostname = (Get-WmiObject -Class Win32_NetworkAdapterConfiguration -Filter IPEnabled=TRUE -ComputerName $ipaddr).PSComputerName + if ($hostname -eq $null) { $hostname = (nbtstat -A $ipaddr | Where-Object {$_ -match '\<00\> UNIQUE'} | ForEach-Object {$_.SubString(4,14)}).Trim() } + } + catch { throw "Could not access remote WMI object. Check permissions and firewall." } + } + + # Setup remote session if server is not local + if ($hostname -ne $env:COMPUTERNAME) { + try { $session = New-PSSession -ComputerName $hostname } + catch { + throw "Can't access $hostname using PSSession. Check your firewall settings and ensure Remoting is enabled or run the script locally." + } + } + + Write-Output "Detecting login type" + # Is login a Windows login? If so, does it exist? + if ($login -match "\\") { + Write-Output "Windows login detected. Checking to ensure account is valid." + $windowslogin = $true + try { + if ($hostname -eq $env:COMPUTERNAME) { + $account = New-Object System.Security.Principal.NTAccount($args) + $sid = $account.Translate([System.Security.Principal.SecurityIdentifier]) + } else { + Invoke-Command -ErrorAction Stop -Session $session -Args $login -ScriptBlock { + $account = New-Object System.Security.Principal.NTAccount($args) + $sid = $account.Translate([System.Security.Principal.SecurityIdentifier]) + } + } + } catch { throw "SQL Server cannot resolve Windows User or Group $login." } + } + + # If it's not a Windows login, it's a SQL login, so it needs a password. + if ($windowslogin -ne $true) { + Write-Output "SQL login detected" + do {$Password = Read-Host -AsSecureString "Please enter a new password for $login" } while ( $Password.Length -eq 0 ) + } + + # Get instance and service display name, then get services + $instance = ($sqlserver.split("\"))[1] + if ($instance -eq $null) { $instance = "MSSQLSERVER" } + $displayName = "SQL Server ($instance)" + + try { + $instanceservices = Get-Service -ComputerName $ipaddr | Where-Object { $_.DisplayName -like "*($instance)*" -and $_.Status -eq "Running" } + $sqlservice = Get-Service -ComputerName $ipaddr | Where-Object { $_.DisplayName -eq "SQL Server ($instance)" } + } catch { throw "Cannot connect to WMI on $hostname or SQL Service does not exist. Check permissions, firewall and SQL Server running status." } + + if ($instanceservices -eq $null) { throw "Couldn't find SQL Server instance. Check the spelling, ensure the service is running and try again." } + + Write-Output "Attempting to stop SQL Services" + + # Check to see if service is clustered. Clusters don't support -m (since the cluster service + # itself connects immediately) or -f, so they are handled differently. + try { $checkcluster = Get-Service -ComputerName $ipaddr | Where-Object { $_.Name -eq "ClusSvc" -and $_.Status -eq "Running" } } + catch { throw "Can't check services. Check permissions and firewall." } + + if ($checkcluster -ne $null) { + $clusterResource = Get-WmiObject -Authentication PacketPrivacy -Impersonation Impersonate -class "MSCluster_Resource" -namespace "root\mscluster" -computername $hostname | + Where-Object { $_.Name.StartsWith("SQL Server") -and $_.OwnerGroup -eq "SQL Server ($instance)" } + } + + # Take SQL Server offline so that it can be started in single-user mode + if ($clusterResource.count -gt 0) { + $isclustered = $true + try { $clusterResource | Where-Object { $_.Name -eq "SQL Server" } | ForEach-Object { $_.TakeOffline(60) } } + catch { + $clusterResource | Where-Object { $_.Name -eq "SQL Server" } | ForEach-Object { $_.BringOnline(60) } + $clusterResource | Where-Object { $_.Name -ne "SQL Server" } | ForEach-Object { $_.BringOnline(60) } + throw "Could not stop the SQL Service. Restarted SQL Service and quit." + } + } else { + try { + Stop-Service -InputObject $sqlservice -Force + Write-Output "Successfully stopped SQL service" + } catch { + Start-Service -InputObject $instanceservices + throw "Could not stop the SQL Service. Restarted SQL service and quit." + } + } + + # /mReset-SqlSaPassword Starts an instance of SQL Server in single-user mode and only allows this script to connect. + Write-Output "Starting SQL Service from command line" + try { + if ($hostname -eq $env:COMPUTERNAME) { + $netstart = net start ""$displayname"" /mReset-SqlSaPassword 2>&1 + if ("$netstart" -notmatch "success") { throw } + } + else { + $netstart = Invoke-Command -ErrorAction Stop -Session $session -Args $displayname -ScriptBlock { net start ""$args"" /mReset-SqlSaPassword } 2>&1 + foreach ($line in $netstart) { + if ($line.length -gt 0) { Write-Output $line } + } + } + } catch { + Stop-Service -InputObject $sqlservice -Force -ErrorAction SilentlyContinue + + if ($isclustered) { + $clusterResource | Where-Object Name -eq "SQL Server" | ForEach-Object { $_.BringOnline(60) } + $clusterResource | Where-Object Name -ne "SQL Server" | ForEach-Object { $_.BringOnline(60) } + } else { + Start-Service -InputObject $instanceservices -ErrorAction SilentlyContinue + } + throw "Couldn't execute net start command. Restarted services and quit." + } + + Write-Output "Reconnecting to SQL instance" + try { Invoke-ResetSqlCmd -SqlServer $sqlserver -Sql "SELECT 1" | Out-Null } + catch { + try { + Start-Sleep 3 + Invoke-ResetSqlCmd -SqlServer $sqlserver -Sql "SELECT 1" | Out-Null + } catch { + Stop-Service Input-Object $sqlservice -Force -ErrorAction SilentlyContinue + if ($isclustered) { + $clusterResource | Where-Object { $_.Name -eq "SQL Server" } | ForEach-Object { $_.BringOnline(60) } + $clusterResource | Where-Object { $_.Name -ne "SQL Server" } | ForEach-Object { $_.BringOnline(60) } + } else { Start-Service -InputObject $instanceservices -ErrorAction SilentlyContinue } + throw "Could not stop the SQL Service. Restarted SQL Service and quit." + } + } + + # Get login. If it doesn't exist, create it. + Write-Output "Adding login $login if it doesn't exist" + if ($windowslogin -eq $true) { + $sql = "IF NOT EXISTS (SELECT name FROM master.sys.server_principals WHERE name = '$login') + BEGIN CREATE LOGIN [$login] FROM WINDOWS END" + if ($(Invoke-ResetSqlCmd -SqlServer $sqlserver -Sql $sql) -eq $false) { Write-Warning "Couldn't create login." } + } elseif ($login -ne "sa") { + # Create new sql user + $sql = "IF NOT EXISTS (SELECT name FROM master.sys.server_principals WHERE name = '$login') + BEGIN CREATE LOGIN [$login] WITH PASSWORD = '$(ConvertTo-PlainText $Password)', CHECK_POLICY = OFF, CHECK_EXPIRATION = OFF END" + if ($(Invoke-ResetSqlCmd -SqlServer $sqlserver -Sql $sql) -eq $false) { Write-Warning "Couldn't create login." } + } + + # If $login is a SQL Login, Mixed mode authentication is required. + if ($windowslogin -ne $true) { + Write-Output "Enabling mixed mode authentication" + Write-Output "Ensuring account is unlocked" + $sql = "EXEC xp_instance_regwrite N'HKEY_LOCAL_MACHINE', N'Software\Microsoft\MSSQLServer\MSSQLServer', N'LoginMode', REG_DWORD, 2" + if ($(Invoke-ResetSqlCmd -SqlServer $sqlserver -Sql $sql) -eq $false) { Write-Warning "Couldn't set to Mixed Mode." } + + $sql = "ALTER LOGIN [$login] WITH CHECK_POLICY = OFF + ALTER LOGIN [$login] WITH PASSWORD = '$(ConvertTo-PlainText $Password)' UNLOCK" + if ($(Invoke-ResetSqlCmd -SqlServer $sqlserver -Sql $sql) -eq $false) { Write-Warning "Couldn't unlock account." } + } + + Write-Output "Ensuring login is enabled" + $sql = "ALTER LOGIN [$login] ENABLE" + if ($(Invoke-ResetSqlCmd -SqlServer $sqlserver -Sql $sql) -eq $false) { Write-Warning "Couldn't enable login." } + + if ($login -ne "sa") { + Write-Output "Ensuring login exists within sysadmin role" + $sql = "EXEC sp_addsrvrolemember '$login', 'sysadmin'" + if ($(Invoke-ResetSqlCmd -SqlServer $sqlserver -Sql $sql) -eq $false) { Write-Warning "Couldn't add to syadmin role." } + } + + Write-Output "Finished with login tasks" + Write-Output "Restarting SQL Server" + Stop-Service -InputObject $sqlservice -Force -ErrorAction SilentlyContinue + if ($isclustered -eq $true) { + $clusterResource | Where-Object { $_.Name -eq "SQL Server" } | ForEach-Object { $_.BringOnline(60) } + $clusterResource | Where-Object { $_.Name -ne "SQL Server" } | ForEach-Object { $_.BringOnline(60) } + } else { Start-Service -InputObject $instanceservices -ErrorAction SilentlyContinue } + } + + END { + Write-Output "Script complete!" + } } \ No newline at end of file diff --git a/PowerShell/SQL_Server_Discovery_Report.ps1 b/PowerShell/SQL_Server_Discovery_Report.ps1 new file mode 100644 index 00000000..e82d9532 --- /dev/null +++ b/PowerShell/SQL_Server_Discovery_Report.ps1 @@ -0,0 +1,156 @@ + <# + .SYNOPSIS + SQL Server discovery report. + + .DESCRIPTION + Runs the SQL Server discovery report (opens in default browser). Run as Administrator!!! + + .INPUTS + None + + .OUTPUTS + None + + .NOTES + Version: 1.1 + + Author: Dave Mason + https://twitter.com/BeginTry + https://itsalljustelectrons.blogspot.com/ + + Creation Date: 2018/04/18 + + Assumptions: + 1. The sub-folder "Microsoft SQL Server" exists in %PROGRAMFILES%, + even if SQL was installed to a non-default path. This has been + verified on SQL 2008R2 and SQL 2012. Further verification may be needed. + 2. The numbered sub-folders in "%PROGRAMFILES%\Microsoft SQL Server" correlate to + installed versions of SQL Server. The numbers sync with database compatibility + levels. For example: + 140 "%PROGRAMFILES%\Microsoft SQL Server\140" SQL Server 2017 + 130 "%PROGRAMFILES%\Microsoft SQL Server\130" SQL Server 2016 + 120 "%PROGRAMFILES%\Microsoft SQL Server\120" SQL Server 2014 + 110 "%PROGRAMFILES%\Microsoft SQL Server\110" SQL Server 2012 + 100 "%PROGRAMFILES%\Microsoft SQL Server\100" SQL Server 2008 R2 + If this version/folder/naming convention remains intact for future versions, + this script should continue to work with no enhancements. + 3. The discovery report displays installed components for the version of SQL + Server associated with setup.exe, along with installed components of all + lesser versions of SQL Server that are installed. + + History: + 2018/04/23 DMason + Output a message if no installed SQL Server features are found. + Enhancements for older versions of SQL Server (2008, 2005). + Thanks to Wayne Sheffield for verifying the Setup.exe Bootstrap path for + SQL Server 2008 R2 and for providing paths for SQL Server 2008 and 2005. + https://twitter.com/DBAWayne + https://blog.waynesheffield.com/wayne/ + +#> + +#Locate the "%PROGRAMFILES%\Microsoft SQL Server" folder. +$MSSQLpath = [System.IO.Path]::Combine($env:ProgramFiles, "Microsoft SQL Server") +$lstCompatLevelDirs = New-Object "System.Collections.Generic.List[Int32]" + +<# + Iterate through the "Microsoft SQL Server" sub-folders. + Sub-folder names that are numeric are added to List of type Int32. +#> +Get-ChildItem -Directory $MSSQLpath | + ForEach-Object { + [Int32]$DirNum = 0 + + if ([Int32]::TryParse($_.Name, [ref]$DirNum)) + { + $lstCompatLevelDirs.Add($DirNum) + } + } + +#Sort() the List, then Reverse() it so there is DESCENDING order. +$lstCompatLevelDirs.Sort() +$lstCompatLevelDirs.Reverse() + +[bool] $setupExeFound = $false + +<# + Find the Setup Bootstrap Setup.exe file in the "highest" sub-folder. + Here are a few examples: + "%PROGRAMFILES%\Microsoft SQL Server\140\Setup Bootstrap\SQL2017\setup.exe" + "%PROGRAMFILES%\Microsoft SQL Server\130\Setup Bootstrap\SQLServer2016\setup.exe" + "%PROGRAMFILES%\Microsoft SQL Server\120\Setup Bootstrap\SQLServer2014\setup.exe" + "%PROGRAMFILES%\Microsoft SQL Server\110\Setup Bootstrap\SQLServer2012\setup.exe" + "%PROGRAMFILES%\Microsoft SQL Server\100\Setup Bootstrap\SQLServer2008R2\Setup.exe" +#> +ForEach($int in $lstCompatLevelDirs) +{ + #The "Setup Bootstrap" path. For example: "%PROGRAMFILES%\Microsoft SQL Server\140\Setup Bootstrap + [string]$SetupBootstrap = [System.IO.Path]::Combine( + [System.IO.Path]::Combine($MSSQLpath, $int.ToString()), + "Setup Bootstrap") + + if ([System.IO.Directory]::Exists($SetupBootstrap)) + { + <# + Iterate through the list of sub-folders with names that match the pattern "SQL*" + #> + ForEach($sqlSubDir in [System.IO.Directory]::GetDirectories($SetupBootstrap, "SQL*")) + { + <# + Search for "setup.exe". + If found: + Run the exe with the appropriate parameters to run the discovery report. + Break out of the loops. + #> + [string]$setupExe = [System.IO.Path]::Combine($sqlSubDir, "setup.exe") + + if ([System.IO.File]::Exists($setupExe)) + { + $setupExeFound = $true + Start-Process -FilePath $setupExe -ArgumentList "/Action=RunDiscovery" + break + } + } + } + + if($setupExeFound) + { + break + } +} + +<# + If the Setup.exe is still not found, search for it in hard-coded paths that correspond + to older versions that didn't use the current version/folder/naming convention. + + 2008: "%PROGRAMFILES%\Microsoft SQL Server\100\Setup Bootstrap\Release\Setup.exe" + 2005: "%PROGRAMFILES%\Microsoft SQL Server\90\Setup Bootstrap\Setup.exe" +#> +if(-Not $setupExeFound) +{ + $lstOldSqlVersionSetupExePaths = New-Object "System.Collections.Generic.List[string]" + + #SQL 2008 + $lstOldSqlVersionSetupExePaths.Add([System.IO.Path]::Combine($MSSQLpath, "100\Setup Bootstrap\Release\Setup.exe")) + + #SQL 2005 + $lstOldSqlVersionSetupExePaths.Add([System.IO.Path]::Combine($MSSQLpath, "90\Setup Bootstrap\Setup.exe")) + + #TODO: add strings to the array for even older versions of SQL (gulp). + + + ForEach($setupExe in $lstOldSqlVersionSetupExePaths) + { + if ([System.IO.File]::Exists($setupExe)) + { + $setupExeFound = $true + Start-Process -FilePath $setupExe -ArgumentList "/Action=RunDiscovery" + break + } + } +} + +if(-Not $setupExeFound) +{ + Write-Host "No installed SQL Server features found." -ForegroundColor Yellow +} diff --git a/PowerShell/SQL_Server_Test_backups.ps1 b/PowerShell/SQL_Server_Test_backups.ps1 index 8ed1a21c..465cfa59 100644 --- a/PowerShell/SQL_Server_Test_backups.ps1 +++ b/PowerShell/SQL_Server_Test_backups.ps1 @@ -1,355 +1,355 @@ -<# -.SYNOPSIS - The SQL_Server_Test_backups script will reach out to a sql server central management server, derive a server list and database backup list. - Then asynchronously restore them to a test server followed by integrity checks. -.EXAMPLE - .\SQL_Server_Test_backups.ps1 -cmsname "localhost" -servergroup "Production" -testservername "localhost" -randommultiplier 0.1 -loggingdbname "BackupTest" - .\SQL_Server_Test_backups.ps1 -cmsname "localhost" -servergroup "Production" -testservername "localhost" -randommultiplier 0.5 -loggingdbname "BackupTest" -recurse -.INPUTS - [string]$cmsname - the central management server to connect to. - [string]$servergroup - the root server group to parse. - [string]$testservername - the test server to restore to. - [string]$loggingdbname - name of the database on the test server to log results to. - [decimal]$randommultiplier - decimal multiplier for the number of servers and databases to test at a time. e.g. 0.1=10%, 1=100%. - [switch]$recurse - switch to determine whether the server group should be recursively searched. -.OUTPUTS - none. -.NOTES - Author: Derik Hammer - Original Link: http://www.sqlshack.com/backup-testing-powershell-part-1-test/ - Created Date: 2014-10-21 -#> -[CmdletBinding()] -param -( - [Parameter(Mandatory=$true)] - [ValidateNotNullorEmpty()] - [string]$cmsName, - [Parameter(Mandatory=$true)] - [ValidateNotNullorEmpty()] - [string]$serverGroup, - [Parameter(Mandatory=$true)] - [ValidateNotNullorEmpty()] - [string]$testServerName, - [Parameter(Mandatory=$true)] - [ValidateNotNullorEmpty()] - [string]$loggingDbName, - [Parameter(Mandatory=$true)] - [ValidateNotNullorEmpty()] - [decimal]$randomMultiplier, - [parameter(Mandatory=$false)] - [switch]$recurse -) -Import-Module SQLPS -DisableNameChecking -$ErrorActionPreference = "Continue"; -Trap { - $err = $_.Exception - while ( $err.InnerException ) - { - $err = $err.InnerException - write-output $err.Message - throw $_.Exception; - }; - continue - } -Function Parse-ServerGroup($serverGroup) -{ - $results = $serverGroup.RegisteredServers; - foreach($group in $serverGroup.ServerGroups) - { - $results += Parse-ServerGroup -serverGroup $group; - } - return $results; -} -Function Get-ServerList ([string]$cmsName, [string]$serverGroup, [switch]$recurse) -{ - $connectionString = "data source=$cmsName;initial catalog=master;integrated security=sspi;" - $sqlConnection = New-Object ("System.Data.SqlClient.SqlConnection") $connectionstring - $conn = New-Object ("Microsoft.SQLServer.Management.common.serverconnection") $sqlconnection - $cmsStore = New-Object ("Microsoft.SqlServer.Management.RegisteredServers.RegisteredServersStore") $conn - $cmsRootGroup = $cmsStore.ServerGroups["DatabaseEngineServerGroup"].ServerGroups[$serverGroup] - - if($recurse) - { - return Parse-ServerGroup -serverGroup $cmsRootGroup | select ServerName - } - else - { - return $cmsRootGroup.RegisteredServers | select ServerName - } -} -[scriptblock]$restoreDatabaseFunction = -{ - Function Restore-Database - { - <# .synopsis - restores a full database backup to target server. it will move the database files to the default data and log directories on the target server. - .example - restore-database -servername "localhost" -newdbname "testdb" -backupfilepath "D:\Backup\testdb.bak" - restore-database -servername "localhost" -newdbname "testdb" -backupfilepath "\\KINGFERGUS\Shared\Backup\testdb.bak" -dropdbbeforerestore -conductintegritychecks - .inputs - [string]$servername - the server to restore to. - [string]$newdbname - the database name that you'd like to use for the restore. - [string]$backupfilepath - local or unc path for the *.bak file (.bak extension is required). - [string]$origservername - name of the server where the backup originated. used for logging purposes. - [string]$loggingdbname - name of the logging database. - [switch]$dropdbbeforerestore - set if you would like the database matching $newdbname to be dropped before restored. - the intent of this would be to ensure exclusive access to the database can be had during restore. - [switch]$conductintegritychecks - set if you would like dbcc checktables to be run on the entire database after restore. - .outputs - none. - #> - [CmdletBinding()] - param - ( - [Parameter(Mandatory=$true)] - [ValidateNotNullorEmpty()] - [string]$serverName, - [Parameter(Mandatory=$true)] - [ValidateNotNullorEmpty()] - [string]$newDBName, - [parameter(Mandatory=$true)] - [ValidateNotNullorEmpty()] - [string]$backupFilePath, - [parameter(Mandatory=$true)] - [ValidateNotNullorEmpty()] - [string]$origServerName, - [parameter(Mandatory=$true)] - [ValidateNotNullorEmpty()] - [string]$loggingDbName, - [parameter(Mandatory=$false)] - [switch]$dropDbBeforeRestore, - [parameter(Mandatory=$false)] - [switch]$conductIntegrityChecks - ) - Import-Module SQLPS -DisableNameChecking - - ## BEGIN input validation ## - $ErrorActionPreference = "Stop"; - Trap { - $err = $_.Exception - while ( $err.InnerException ) - { - $err = $err.InnerException - write-output $err.Message - throw $_.Exception; - }; - continue - } - if($backupFilePath -notlike "*.bak") - { - throw "the file extension should be .bak." - } - - if(!(test-path -Path $backupFilePath)) - { - throw "Could not find the backup file." - } - # Test connection - $server = New-Object ("Microsoft.SqlServer.Management.Smo.Server") $serverName - if($server.Version.Major -eq $null) - { - throw "Could not establish connection to $serverName." - } - ## END input validation ## - - # Create restore object and specify its settings - $smoRestore = new-object("Microsoft.SqlServer.Management.Smo.Restore") - $smoRestore.Database = $newDBName - $smoRestore.NoRecovery = $false; - $smoRestore.ReplaceDatabase = $true; - $smoRestore.Action = "Database" - - # Create location to restore from - $backupDevice = New-Object("Microsoft.SqlServer.Management.Smo.BackupDeviceItem") ($backupFilePath, "File") - $smoRestore.Devices.Add($backupDevice) - - # Get the file list from backup file - $dbFileList = $smoRestore.ReadFileList($server) - # Specify new data file (mdf) - $smoRestoreDataFile = New-Object("Microsoft.SqlServer.Management.Smo.RelocateFile") - $defaultData = $server.DefaultFile - if (($defaultData -eq $null) -or ($defaultData -eq "")) - { - $defaultData = $server.MasterDBPath - } - $smoRestoreDataFile.PhysicalFileName = "$defaultData$newDBName" + ".mdf"; - $smoRestoreDataFile.LogicalFileName = $dbFileList.Select("FileId = 1").LogicalName - $smoRestore.RelocateFiles.Add($smoRestoreDataFile) | Out-Null - - # Specify new log file (ldf) - $smoRestoreLogFile = New-Object("Microsoft.SqlServer.Management.Smo.RelocateFile") - $defaultLog = $server.DefaultLog - if (($defaultLog -eq $null) -or ($defaultLog -eq "")) - { - $defaultLog = $server.MasterDBLogPath - } - $smoRestoreLogFile.PhysicalFileName = "$defaultData$newDBName" + "_Log.ldf"; - $smoRestoreLogFile.LogicalFileName = $dbFileList.Select("FileId = 2").LogicalName - $smoRestore.RelocateFiles.Add($smoRestoreLogFile) | Out-Null - # Loop through remaining files to generate relocation file paths. - $smoRestoreFile = New-Object("Microsoft.SqlServer.Management.Smo.RelocateFile") - foreach($file in $dbFileList.Select("FileId > 2")) - { - $smoRestoreFile = New-Object("Microsoft.SqlServer.Management.Smo.RelocateFile") - $smoLogicalName = $file.LogicalName; - $smoRestoreFile.LogicalFileName = $smoLogicalName - $smoRestoreFile.PhysicalFileName = "$defaultData$smoLogicalName" + ".ndf"; - $smoRestore.RelocateFiles.Add($smoRestoreFile) | Out-Null - } - - # Ensure exclusive access - if($dropDbBeforeRestore -and $server.Databases[$newDBName] -ne $null) - { - $server.KillAllProcesses($newDBName); - $server.KillDatabase($newDBName); - } - #Log restore process - start - [string]$restoreResultId = [System.Guid]::NewGuid().ToString(); - [string]$sql = "INSERT INTO [dbo].[RestoreResult] - ([restoreResultId] - ,[originatingServerName] - ,[databaseName] - ,[backupFilePath]) - VALUES - ('$restoreResultId' - ,'$origServerName' - ,'$newDBName' - ,'$backupFilePath');" - Invoke-Sqlcmd -ServerInstance $serverName -Database $loggingDbName -Query $sql -QueryTimeout 30; - # Restore the database - $errList = @(); - try - { - $smoRestore.SqlRestore($server) - } - catch - { - [System.Exception] - $err = $_.Exception - $errList += $err; - while ( $err.InnerException ) - { - $err = $err.InnerException - $errList += $err; - write-output $err.Message - }; - } - #Log restore process - end - $restoreEndUtc = Get-Date; - [string]$restoreEnd = $restoreEndUtc.ToUniversalTime(); - [string]$errMsg; - foreach($msg in $errList) - { - $errMsg += $msg + "'r'n"; - } - $sql = "UPDATE [dbo].[RestoreResult] - SET [endDateTime] = '$restoreEnd' "; - if($errMsg -ne $null) - { - $sql += ",[errorMessage] = '$errMsg' "; - } - $sql += "WHERE restoreResultId = '$restoreResultId';"; - Invoke-Sqlcmd -ServerInstance $serverName -Database $loggingDbName -Query $sql -QueryTimeout 30; - if($conductIntegrityChecks) - { - #Log integrity checks - start - [string]$checkDbResultId = [System.Guid]::NewGuid().ToString(); - [string]$sql = "INSERT INTO [dbo].[CheckDbResult] - ([checkDbResultId] - ,[restoreResultId]) - VALUES - ('$checkDbResultId' - ,'$restoreResultId');" - Invoke-Sqlcmd -ServerInstance $serverName -Database $loggingDbName -Query $sql -QueryTimeout 30; - #Integrity checks - $errList = @(); - try - { - $server.Databases[$newDBName].CheckTables("None"); - } - catch - { - [System.Exception] - $err = $_.Exception - $errList += $err; - while ( $err.InnerException ) - { - $err = $err.InnerException - $errList += $err; - write-output $err.Message - }; - } - #Log integrity checks - end - $checkDbEndUtc = Get-Date; - [string]$checkDbEnd = $restoreEndUtc.ToUniversalTime(); - [string]$errMsg; - foreach($msg in $errList) - { - $errMsg += $msg + "'r'n"; - } - $sql = "UPDATE [dbo].[CheckDbResult] - SET [endDateTime] = '$checkDbEnd' "; - if($errMsg -ne $null) - { - $sql += ",[errorMessage] = '$errMsg' "; - } - $sql += "WHERE checkDbResultId = '$checkDbResultId';"; - Invoke-Sqlcmd -ServerInstance $serverName -Database $loggingDbName -Query $sql -QueryTimeout 30; - } - # clean up databases - $server.KillAllProcesses($newDBName); - $server.KillDatabase($newDBName); - - Write-Host -Object "Restore-Database has completed processing." - } -} -if($recurse) -{ - $serverList = Get-ServerList -cmsName $cmsName -serverGroup $serverGroup -recurse -} -else -{ - $serverList = Get-ServerList -cmsName $cmsName -serverGroup $serverGroup -} -$servers = $serverList | Get-Random -Count ([Math]::Ceiling([decimal]$serverList.Count * $randomMultiplier)) -$jobs = @() -foreach($svr in $servers) -{ - $server = New-Object ("Microsoft.SqlServer.Management.Smo.Server") $svr.ServerName; - $databaseList = $server.Databases | Where-Object { $_.IsSystemObject -eq $false }; - $databaseList = $databaseList | Get-Random -Count ([Math]::Ceiling([decimal]$databaseList.Count * $randomMultiplier)) | select Name; - $backupSetQuery = "SELECT TOP 1 BMF.physical_device_name - FROM msdb.dbo.backupmediafamily BMF - INNER JOIN msdb.dbo.backupset BS ON BS.media_set_id = BMF.media_set_id - WHERE BS.database_name = '`$(databaseName)' - AND BS.type = 'D' - AND BS.is_copy_only = 0 - AND BMF.physical_device_name NOT LIKE '{%' - ORDER BY BS.backup_finish_date DESC"; - foreach($database in $databaseList) - { - $params = "databaseName = " + $database.Name; - $results = @(); - $results += Invoke-Sqlcmd -ServerInstance $server.Name -Query $backupSetQuery -Variable $params -QueryTimeout 30; - if($results.Count -eq 0 -or $results -eq $null) - { - continue; - } - [string]$backupPath = $results[0].physical_device_name; - - # set arguments - $arguments = @() - $arguments += $testServerName; - $arguments += $database.Name; - $arguments += $backupPath; - $arguments += $loggingDbName; - $arguments += $svr.ServerName; - # start job - $jobs += Start-job -ScriptBlock {Restore-Database -serverName $args[0] -newDBName $args[1] -backupFilePath $args[2] -loggingDbName $args[3] -origServerName $args[4] –dropDbBeforeRestore -conductIntegrityChecks} ` - -InitializationScript $restoreDatabaseFunction -ArgumentList($arguments) -Name $database.Name; - - } -} -$jobs | Wait-Job | Receive-Job +<# +.SYNOPSIS + The SQL_Server_Test_backups script will reach out to a sql server central management server, derive a server list and database backup list. + Then asynchronously restore them to a test server followed by integrity checks. +.EXAMPLE + .\SQL_Server_Test_backups.ps1 -cmsname "localhost" -servergroup "Production" -testservername "localhost" -randommultiplier 0.1 -loggingdbname "BackupTest" + .\SQL_Server_Test_backups.ps1 -cmsname "localhost" -servergroup "Production" -testservername "localhost" -randommultiplier 0.5 -loggingdbname "BackupTest" -recurse +.INPUTS + [string]$cmsname - the central management server to connect to. + [string]$servergroup - the root server group to parse. + [string]$testservername - the test server to restore to. + [string]$loggingdbname - name of the database on the test server to log results to. + [decimal]$randommultiplier - decimal multiplier for the number of servers and databases to test at a time. e.g. 0.1=10%, 1=100%. + [switch]$recurse - switch to determine whether the server group should be recursively searched. +.OUTPUTS + none. +.NOTES + Author: Derik Hammer + Original Link: http://www.sqlshack.com/backup-testing-powershell-part-1-test/ + Created Date: 2014-10-21 +#> +[CmdletBinding()] +param +( + [Parameter(Mandatory=$true)] + [ValidateNotNullorEmpty()] + [string]$cmsName, + [Parameter(Mandatory=$true)] + [ValidateNotNullorEmpty()] + [string]$serverGroup, + [Parameter(Mandatory=$true)] + [ValidateNotNullorEmpty()] + [string]$testServerName, + [Parameter(Mandatory=$true)] + [ValidateNotNullorEmpty()] + [string]$loggingDbName, + [Parameter(Mandatory=$true)] + [ValidateNotNullorEmpty()] + [decimal]$randomMultiplier, + [parameter(Mandatory=$false)] + [switch]$recurse +) +Import-Module SQLPS -DisableNameChecking +$ErrorActionPreference = "Continue"; +Trap { + $err = $_.Exception + while ( $err.InnerException ) + { + $err = $err.InnerException + write-output $err.Message + throw $_.Exception; + }; + continue + } +Function Parse-ServerGroup($serverGroup) +{ + $results = $serverGroup.RegisteredServers; + foreach($group in $serverGroup.ServerGroups) + { + $results += Parse-ServerGroup -serverGroup $group; + } + return $results; +} +Function Get-ServerList ([string]$cmsName, [string]$serverGroup, [switch]$recurse) +{ + $connectionString = "data source=$cmsName;initial catalog=master;integrated security=sspi;" + $sqlConnection = New-Object ("System.Data.SqlClient.SqlConnection") $connectionstring + $conn = New-Object ("Microsoft.SQLServer.Management.common.serverconnection") $sqlconnection + $cmsStore = New-Object ("Microsoft.SqlServer.Management.RegisteredServers.RegisteredServersStore") $conn + $cmsRootGroup = $cmsStore.ServerGroups["DatabaseEngineServerGroup"].ServerGroups[$serverGroup] + + if($recurse) + { + return Parse-ServerGroup -serverGroup $cmsRootGroup | select ServerName + } + else + { + return $cmsRootGroup.RegisteredServers | select ServerName + } +} +[scriptblock]$restoreDatabaseFunction = +{ + Function Restore-Database + { + <# .synopsis + restores a full database backup to target server. it will move the database files to the default data and log directories on the target server. + .example + restore-database -servername "localhost" -newdbname "testdb" -backupfilepath "D:\Backup\testdb.bak" + restore-database -servername "localhost" -newdbname "testdb" -backupfilepath "\\KINGFERGUS\Shared\Backup\testdb.bak" -dropdbbeforerestore -conductintegritychecks + .inputs + [string]$servername - the server to restore to. + [string]$newdbname - the database name that you'd like to use for the restore. + [string]$backupfilepath - local or unc path for the *.bak file (.bak extension is required). + [string]$origservername - name of the server where the backup originated. used for logging purposes. + [string]$loggingdbname - name of the logging database. + [switch]$dropdbbeforerestore - set if you would like the database matching $newdbname to be dropped before restored. + the intent of this would be to ensure exclusive access to the database can be had during restore. + [switch]$conductintegritychecks - set if you would like dbcc checktables to be run on the entire database after restore. + .outputs + none. + #> + [CmdletBinding()] + param + ( + [Parameter(Mandatory=$true)] + [ValidateNotNullorEmpty()] + [string]$serverName, + [Parameter(Mandatory=$true)] + [ValidateNotNullorEmpty()] + [string]$newDBName, + [parameter(Mandatory=$true)] + [ValidateNotNullorEmpty()] + [string]$backupFilePath, + [parameter(Mandatory=$true)] + [ValidateNotNullorEmpty()] + [string]$origServerName, + [parameter(Mandatory=$true)] + [ValidateNotNullorEmpty()] + [string]$loggingDbName, + [parameter(Mandatory=$false)] + [switch]$dropDbBeforeRestore, + [parameter(Mandatory=$false)] + [switch]$conductIntegrityChecks + ) + Import-Module SQLPS -DisableNameChecking + + ## BEGIN input validation ## + $ErrorActionPreference = "Stop"; + Trap { + $err = $_.Exception + while ( $err.InnerException ) + { + $err = $err.InnerException + write-output $err.Message + throw $_.Exception; + }; + continue + } + if($backupFilePath -notlike "*.bak") + { + throw "the file extension should be .bak." + } + + if(!(test-path -Path $backupFilePath)) + { + throw "Could not find the backup file." + } + # Test connection + $server = New-Object ("Microsoft.SqlServer.Management.Smo.Server") $serverName + if($server.Version.Major -eq $null) + { + throw "Could not establish connection to $serverName." + } + ## END input validation ## + + # Create restore object and specify its settings + $smoRestore = new-object("Microsoft.SqlServer.Management.Smo.Restore") + $smoRestore.Database = $newDBName + $smoRestore.NoRecovery = $false; + $smoRestore.ReplaceDatabase = $true; + $smoRestore.Action = "Database" + + # Create location to restore from + $backupDevice = New-Object("Microsoft.SqlServer.Management.Smo.BackupDeviceItem") ($backupFilePath, "File") + $smoRestore.Devices.Add($backupDevice) + + # Get the file list from backup file + $dbFileList = $smoRestore.ReadFileList($server) + # Specify new data file (mdf) + $smoRestoreDataFile = New-Object("Microsoft.SqlServer.Management.Smo.RelocateFile") + $defaultData = $server.DefaultFile + if (($defaultData -eq $null) -or ($defaultData -eq "")) + { + $defaultData = $server.MasterDBPath + } + $smoRestoreDataFile.PhysicalFileName = "$defaultData$newDBName" + ".mdf"; + $smoRestoreDataFile.LogicalFileName = $dbFileList.Select("FileId = 1").LogicalName + $smoRestore.RelocateFiles.Add($smoRestoreDataFile) | Out-Null + + # Specify new log file (ldf) + $smoRestoreLogFile = New-Object("Microsoft.SqlServer.Management.Smo.RelocateFile") + $defaultLog = $server.DefaultLog + if (($defaultLog -eq $null) -or ($defaultLog -eq "")) + { + $defaultLog = $server.MasterDBLogPath + } + $smoRestoreLogFile.PhysicalFileName = "$defaultData$newDBName" + "_Log.ldf"; + $smoRestoreLogFile.LogicalFileName = $dbFileList.Select("FileId = 2").LogicalName + $smoRestore.RelocateFiles.Add($smoRestoreLogFile) | Out-Null + # Loop through remaining files to generate relocation file paths. + $smoRestoreFile = New-Object("Microsoft.SqlServer.Management.Smo.RelocateFile") + foreach($file in $dbFileList.Select("FileId > 2")) + { + $smoRestoreFile = New-Object("Microsoft.SqlServer.Management.Smo.RelocateFile") + $smoLogicalName = $file.LogicalName; + $smoRestoreFile.LogicalFileName = $smoLogicalName + $smoRestoreFile.PhysicalFileName = "$defaultData$smoLogicalName" + ".ndf"; + $smoRestore.RelocateFiles.Add($smoRestoreFile) | Out-Null + } + + # Ensure exclusive access + if($dropDbBeforeRestore -and $server.Databases[$newDBName] -ne $null) + { + $server.KillAllProcesses($newDBName); + $server.KillDatabase($newDBName); + } + #Log restore process - start + [string]$restoreResultId = [System.Guid]::NewGuid().ToString(); + [string]$sql = "INSERT INTO [dbo].[RestoreResult] + ([restoreResultId] + ,[originatingServerName] + ,[databaseName] + ,[backupFilePath]) + VALUES + ('$restoreResultId' + ,'$origServerName' + ,'$newDBName' + ,'$backupFilePath');" + Invoke-Sqlcmd -ServerInstance $serverName -Database $loggingDbName -Query $sql -QueryTimeout 30; + # Restore the database + $errList = @(); + try + { + $smoRestore.SqlRestore($server) + } + catch + { + [System.Exception] + $err = $_.Exception + $errList += $err; + while ( $err.InnerException ) + { + $err = $err.InnerException + $errList += $err; + write-output $err.Message + }; + } + #Log restore process - end + $restoreEndUtc = Get-Date; + [string]$restoreEnd = $restoreEndUtc.ToUniversalTime(); + [string]$errMsg; + foreach($msg in $errList) + { + $errMsg += $msg + "'r'n"; + } + $sql = "UPDATE [dbo].[RestoreResult] + SET [endDateTime] = '$restoreEnd' "; + if($errMsg -ne $null) + { + $sql += ",[errorMessage] = '$errMsg' "; + } + $sql += "WHERE restoreResultId = '$restoreResultId';"; + Invoke-Sqlcmd -ServerInstance $serverName -Database $loggingDbName -Query $sql -QueryTimeout 30; + if($conductIntegrityChecks) + { + #Log integrity checks - start + [string]$checkDbResultId = [System.Guid]::NewGuid().ToString(); + [string]$sql = "INSERT INTO [dbo].[CheckDbResult] + ([checkDbResultId] + ,[restoreResultId]) + VALUES + ('$checkDbResultId' + ,'$restoreResultId');" + Invoke-Sqlcmd -ServerInstance $serverName -Database $loggingDbName -Query $sql -QueryTimeout 30; + #Integrity checks + $errList = @(); + try + { + $server.Databases[$newDBName].CheckTables("None"); + } + catch + { + [System.Exception] + $err = $_.Exception + $errList += $err; + while ( $err.InnerException ) + { + $err = $err.InnerException + $errList += $err; + write-output $err.Message + }; + } + #Log integrity checks - end + $checkDbEndUtc = Get-Date; + [string]$checkDbEnd = $restoreEndUtc.ToUniversalTime(); + [string]$errMsg; + foreach($msg in $errList) + { + $errMsg += $msg + "'r'n"; + } + $sql = "UPDATE [dbo].[CheckDbResult] + SET [endDateTime] = '$checkDbEnd' "; + if($errMsg -ne $null) + { + $sql += ",[errorMessage] = '$errMsg' "; + } + $sql += "WHERE checkDbResultId = '$checkDbResultId';"; + Invoke-Sqlcmd -ServerInstance $serverName -Database $loggingDbName -Query $sql -QueryTimeout 30; + } + # clean up databases + $server.KillAllProcesses($newDBName); + $server.KillDatabase($newDBName); + + Write-Host -Object "Restore-Database has completed processing." + } +} +if($recurse) +{ + $serverList = Get-ServerList -cmsName $cmsName -serverGroup $serverGroup -recurse +} +else +{ + $serverList = Get-ServerList -cmsName $cmsName -serverGroup $serverGroup +} +$servers = $serverList | Get-Random -Count ([Math]::Ceiling([decimal]$serverList.Count * $randomMultiplier)) +$jobs = @() +foreach($svr in $servers) +{ + $server = New-Object ("Microsoft.SqlServer.Management.Smo.Server") $svr.ServerName; + $databaseList = $server.Databases | Where-Object { $_.IsSystemObject -eq $false }; + $databaseList = $databaseList | Get-Random -Count ([Math]::Ceiling([decimal]$databaseList.Count * $randomMultiplier)) | select Name; + $backupSetQuery = "SELECT TOP 1 BMF.physical_device_name + FROM msdb.dbo.backupmediafamily BMF + INNER JOIN msdb.dbo.backupset BS ON BS.media_set_id = BMF.media_set_id + WHERE BS.database_name = '`$(databaseName)' + AND BS.type = 'D' + AND BS.is_copy_only = 0 + AND BMF.physical_device_name NOT LIKE '{%' + ORDER BY BS.backup_finish_date DESC"; + foreach($database in $databaseList) + { + $params = "databaseName = " + $database.Name; + $results = @(); + $results += Invoke-Sqlcmd -ServerInstance $server.Name -Query $backupSetQuery -Variable $params -QueryTimeout 30; + if($results.Count -eq 0 -or $results -eq $null) + { + continue; + } + [string]$backupPath = $results[0].physical_device_name; + + # set arguments + $arguments = @() + $arguments += $testServerName; + $arguments += $database.Name; + $arguments += $backupPath; + $arguments += $loggingDbName; + $arguments += $svr.ServerName; + # start job + $jobs += Start-job -ScriptBlock {Restore-Database -serverName $args[0] -newDBName $args[1] -backupFilePath $args[2] -loggingDbName $args[3] -origServerName $args[4] –dropDbBeforeRestore -conductIntegrityChecks} ` + -InitializationScript $restoreDatabaseFunction -ArgumentList($arguments) -Name $database.Name; + + } +} +$jobs | Wait-Job | Receive-Job $jobs | Remove-Job \ No newline at end of file diff --git a/PowerShell/SQL_Server_linked_server_connection_check.ps1 b/PowerShell/SQL_Server_linked_server_connection_check.ps1 index bfbe39b5..f5c0f40c 100644 --- a/PowerShell/SQL_Server_linked_server_connection_check.ps1 +++ b/PowerShell/SQL_Server_linked_server_connection_check.ps1 @@ -1,114 +1,114 @@ -<# -.SYNOPSIS - Test the connection for each linked server defined in a SQL Server. -.DESCRIPTION - This script will test the connection for each linked server defined. - This script will accept an input of a server name. If no name is passed, - the script will default to the current computer name. - This script will output to a file. -.PARAMETER ServerName - If no name is passed, the script will default to the current computer name. -.PARAMETER OutputFile - If no name is passed, the script will default to C:\linked_server_output.txt. -.EXAMPLE - SQL_Server_linked_server_connection_check.ps1 -ServerName "ServerName" -OutputFile "C:\linked_server_output.txt" -.NOTES - Author: Thomas LaRock - Original Link: http://thomaslarock.com/2016/03/sql-server-linked-server-connection-test - Created Date: 2016-02-29 -#> - -<# Input a server name and output file. #> -Param( -[Parameter(Mandatory = $false, Position=1)] -[String]$ServerName, - -[Parameter(Mandatory = $false, Position=2)] -[String]$OutputFile -) - -<# Load the assemblies. #> -[system.reflection.assembly]::LoadWithPartialName("Microsoft.SqlServer.Smo")|Out-Null -[system.reflection.assembly]::LoadWithPartialName("Microsoft.SqlServer.SqlWmiManagement")|Out-Null - -<# If no server name is passed set to the current server name. #> -if ($ServerName.Length -eq 0){$ServerName = $env:COMPUTERNAME} - -<# If no output file set the output file path, and initialize. #> -if ($OutputFile.Length -eq 0){$OutputFile = "C:\linked_server_output.txt"} -"$(Get-Date) Starting Linked Server connection test for server $ServerName." | Out-File $OutputFile - -<# Create new objects for managed computer and SQL server instances. - We use ServerInstances to get friendly names for installed instances, - and we get a list of services to skip those not currentoy running. #> -$mc = new-object Microsoft.SqlServer.Management.Smo.Wmi.ManagedComputer $ServerName -$Instances = $mc.ServerInstances -$Services = $mc.Services - -<# Begin outer loop for each SQL instance installed. #> -foreach($Instance in $Instances) -{ -$Servername = $Instance.Parent.Name - -<# Begin inner loop, for all services installed. #> -foreach ($ServiceName in $Services) -{ - <# We are filtering for services that are running. #> - if ($ServiceName.ServiceState -eq "Running") - { - <# Using wildcard search to find services that are like the instance name. #> - if ($ServiceName.Name -like ("*" + $Instance.Name + "*")) - { - <# Build string for sql server name. If -ne, assume named instance. #> - if ($Instance.Name -ne "MSSQLSERVER") - { - <# Build connection name. #> - $ServerName = $ServerName + "\" + $Instance.name - } - - <# Build SQL Server object. #> - $Server = New-Object Microsoft.SqlServer.Management.Smo.Server($ServerName) - - <# Attempt to connect to this instance by returning the Version property. #> - try - { - $Server.Version | Out-Null - "$(Get-Date) $ServerName connection attempt." | Out-File $OutputFile -Append - - <# If connection above is successful, get array of linked servers. #> - $LSNames = $Server.LinkedServers - "$(Get-Date) $ServerName connection success." | Out-File $OutputFile -Append - - <# If no linked servers defined. #> - if ($LSNames.Count -eq 0) - { - "$(Get-Date) $ServerName no linked servers found." | Out-File $OutputFile -Append - } - - <# For each linked server test the connection. #> - foreach ($LSname in $LSnames) - { - if ($LSname -ne $null) - { - try - { - $LSname.testconnection() - $Connectivity = $true - "$(Get-Date) $ServerName $LSname connection success." | Out-File $OutputFile -Append - } - catch - { - $Connectivity = $false - "$(Get-Date) $ServerName $LSname connection failure." | Out-File $OutputFile -Append - } - } - } - } - catch [System.Exception] - { - "$(Get-Date) $ServerName Server connection failed." | Out-File $OutputFile -Append - } - } - } -} -} +<# +.SYNOPSIS + Test the connection for each linked server defined in a SQL Server. +.DESCRIPTION + This script will test the connection for each linked server defined. + This script will accept an input of a server name. If no name is passed, + the script will default to the current computer name. + This script will output to a file. +.PARAMETER ServerName + If no name is passed, the script will default to the current computer name. +.PARAMETER OutputFile + If no name is passed, the script will default to C:\linked_server_output.txt. +.EXAMPLE + SQL_Server_linked_server_connection_check.ps1 -ServerName "ServerName" -OutputFile "C:\linked_server_output.txt" +.NOTES + Author: Thomas LaRock + Original Link: http://thomaslarock.com/2016/03/sql-server-linked-server-connection-test + Created Date: 2016-02-29 +#> + +<# Input a server name and output file. #> +Param( +[Parameter(Mandatory = $false, Position=1)] +[String]$ServerName, + +[Parameter(Mandatory = $false, Position=2)] +[String]$OutputFile +) + +<# Load the assemblies. #> +[system.reflection.assembly]::LoadWithPartialName("Microsoft.SqlServer.Smo")|Out-Null +[system.reflection.assembly]::LoadWithPartialName("Microsoft.SqlServer.SqlWmiManagement")|Out-Null + +<# If no server name is passed set to the current server name. #> +if ($ServerName.Length -eq 0){$ServerName = $env:COMPUTERNAME} + +<# If no output file set the output file path, and initialize. #> +if ($OutputFile.Length -eq 0){$OutputFile = "C:\linked_server_output.txt"} +"$(Get-Date) Starting Linked Server connection test for server $ServerName." | Out-File $OutputFile + +<# Create new objects for managed computer and SQL server instances. + We use ServerInstances to get friendly names for installed instances, + and we get a list of services to skip those not currentoy running. #> +$mc = new-object Microsoft.SqlServer.Management.Smo.Wmi.ManagedComputer $ServerName +$Instances = $mc.ServerInstances +$Services = $mc.Services + +<# Begin outer loop for each SQL instance installed. #> +foreach($Instance in $Instances) +{ +$Servername = $Instance.Parent.Name + +<# Begin inner loop, for all services installed. #> +foreach ($ServiceName in $Services) +{ + <# We are filtering for services that are running. #> + if ($ServiceName.ServiceState -eq "Running") + { + <# Using wildcard search to find services that are like the instance name. #> + if ($ServiceName.Name -like ("*" + $Instance.Name + "*")) + { + <# Build string for sql server name. If -ne, assume named instance. #> + if ($Instance.Name -ne "MSSQLSERVER") + { + <# Build connection name. #> + $ServerName = $ServerName + "\" + $Instance.name + } + + <# Build SQL Server object. #> + $Server = New-Object Microsoft.SqlServer.Management.Smo.Server($ServerName) + + <# Attempt to connect to this instance by returning the Version property. #> + try + { + $Server.Version | Out-Null + "$(Get-Date) $ServerName connection attempt." | Out-File $OutputFile -Append + + <# If connection above is successful, get array of linked servers. #> + $LSNames = $Server.LinkedServers + "$(Get-Date) $ServerName connection success." | Out-File $OutputFile -Append + + <# If no linked servers defined. #> + if ($LSNames.Count -eq 0) + { + "$(Get-Date) $ServerName no linked servers found." | Out-File $OutputFile -Append + } + + <# For each linked server test the connection. #> + foreach ($LSname in $LSnames) + { + if ($LSname -ne $null) + { + try + { + $LSname.testconnection() + $Connectivity = $true + "$(Get-Date) $ServerName $LSname connection success." | Out-File $OutputFile -Append + } + catch + { + $Connectivity = $false + "$(Get-Date) $ServerName $LSname connection failure." | Out-File $OutputFile -Append + } + } + } + } + catch [System.Exception] + { + "$(Get-Date) $ServerName Server connection failed." | Out-File $OutputFile -Append + } + } + } +} +} diff --git a/PowerShell/SQL_Server_table_to_csv.ps1 b/PowerShell/SQL_Server_table_to_csv.ps1 index a64d8c38..f9aef2cf 100644 --- a/PowerShell/SQL_Server_table_to_csv.ps1 +++ b/PowerShell/SQL_Server_table_to_csv.ps1 @@ -1,57 +1,57 @@ -<# -.SYNOPSIS - Export SQL Server table to csv file -.DESCRIPTION - This script export SQL Server table to csv file -.PARAMETER sqlCmd.CommandText - SQL query for export data -.EXAMPLE - C:\PS> - -.NOTES - Author: Bill Graziano - Original Link: http://www.sqlteam.com/article/fast-csv-import-in-powershell-to-sql-server - Created Date: 2014-03-18 -#> -$ConnectionString = "localhsot" -$streamWriter = New-Object System.IO.StreamWriter ".\SimpleCsvOut3.txt" -$sqlConn = New-Object System.Data.SqlClient.SqlConnection $ConnectionString -$sqlCmd = New-Object System.Data.SqlClient.SqlCommand -$sqlCmd.Connection = $sqlConn -$sqlCmd.CommandText = "SELECT * FROM sys.tables" -$sqlConn.Open(); -$reader = $sqlCmd.ExecuteReader(); - -# Initialze the arry the hold the values -$array = @() -for ( $i = 0 ; $i -lt $reader.FieldCount; $i++ ) - { $array += @($i) } - -# Write Header -$streamWriter.Write($reader.GetName(0)) -for ( $i = 1; $i -lt $reader.FieldCount; $i ++) -{ $streamWriter.Write($("," + $reader.GetName($i))) } - -$streamWriter.WriteLine("") # Close the header line - -while ($reader.Read()) -{ - # get the values; - $fieldCount = $reader.GetValues($array); - - # add quotes if the values have a comma - for ($i = 0; $i -lt $array.Length; $i++) - { - if ($array[$i].ToString().Contains(",")) - { - $array[$i] = '"' + $array[$i].ToString() + '"'; - } - } - - $newRow = [string]::Join(",", $array); - - $streamWriter.WriteLine($newRow) -} -$reader.Close(); -$sqlConn.Close(); -$streamWriter.Close(); +<# +.SYNOPSIS + Export SQL Server table to csv file +.DESCRIPTION + This script export SQL Server table to csv file +.PARAMETER sqlCmd.CommandText + SQL query for export data +.EXAMPLE + C:\PS> + +.NOTES + Author: Bill Graziano + Original Link: http://www.sqlteam.com/article/fast-csv-import-in-powershell-to-sql-server + Created Date: 2014-03-18 +#> +$ConnectionString = "localhsot" +$streamWriter = New-Object System.IO.StreamWriter ".\SimpleCsvOut3.txt" +$sqlConn = New-Object System.Data.SqlClient.SqlConnection $ConnectionString +$sqlCmd = New-Object System.Data.SqlClient.SqlCommand +$sqlCmd.Connection = $sqlConn +$sqlCmd.CommandText = "SELECT * FROM sys.tables" +$sqlConn.Open(); +$reader = $sqlCmd.ExecuteReader(); + +# Initialze the arry the hold the values +$array = @() +for ( $i = 0 ; $i -lt $reader.FieldCount; $i++ ) + { $array += @($i) } + +# Write Header +$streamWriter.Write($reader.GetName(0)) +for ( $i = 1; $i -lt $reader.FieldCount; $i ++) +{ $streamWriter.Write($("," + $reader.GetName($i))) } + +$streamWriter.WriteLine("") # Close the header line + +while ($reader.Read()) +{ + # get the values; + $fieldCount = $reader.GetValues($array); + + # add quotes if the values have a comma + for ($i = 0; $i -lt $array.Length; $i++) + { + if ($array[$i].ToString().Contains(",")) + { + $array[$i] = '"' + $array[$i].ToString() + '"'; + } + } + + $newRow = [string]::Join(",", $array); + + $streamWriter.WriteLine($newRow) +} +$reader.Close(); +$sqlConn.Close(); +$streamWriter.Close(); diff --git a/PowerShell/Send-SqlDataToExcel.ps1 b/PowerShell/Send-SqlDataToExcel.ps1 new file mode 100644 index 00000000..603de6a5 --- /dev/null +++ b/PowerShell/Send-SqlDataToExcel.ps1 @@ -0,0 +1,297 @@ +Function Send-SQLDataToExcel { + <# + .SYNOPSIS + Inserts a DataTable - returned by SQL query into an ExcelSheet, more efficiently than sending it via Export-Excel + .DESCRIPTION + This command can accept a data table object or take a SQL statement and run it against a database connection. + If running a SQL statement, the accepts either + * an object representing a session with a SQL server or ODBC database, or + * a connection String to make a session. + The command takes most of the parameters of Export-Excel, and after inserting the table into the worksheet it + calls Export-Excel to carry out other tasks on the sheet. It is more efficient to do this than to get data-rows + and pipe them into Export-Excel, stripped off the database 'housekeeping' properties. + .PARAMETER DataTable + A System.Data.DataTable object containing the data to be inserted into the spreadsheet without running a query. + .PARAMETER Session + An active ODBC Connection or SQL connection object representing a session with a database which will be queried to get the data . + .PARAMETER Connection + A database connection string to be used to create a database session; either + * A Data source name written in the form DSN=ODBC_Data_Source_Name, or + * A full odbc or SQL Connection string, or + * The name of a SQL server. + .PARAMETER MSSQLServer + Specifies the connection string is for SQL server, not ODBC. + .PARAMETER SQL + The SQL query to run against the session which was passed in -Session or set up from -Connection. + .PARAMETER Database + Switches to a specific database on a SQL server. + .PARAMETER QueryTimeout + Override the default query time of 30 seconds. + .PARAMETER Path + Path to a new or existing .XLSX file. + .PARAMETER WorkSheetName + The name of a sheet within the workbook - "Sheet1" by default. + .PARAMETER KillExcel + Closes Excel - prevents errors writing to the file because Excel has it open. + .PARAMETER Title + Text of a title to be placed in the top left cell. + .PARAMETER TitleBold + Sets the title in boldface type. + .PARAMETER TitleSize + Sets the point size for the title. + .PARAMETER TitleBackgroundColor + Sets the cell background color for the title cell. + .PARAMETER TitleFillPattern + Sets the fill pattern for the title cell. + .PARAMETER Password + Sets password protection on the workbook. + .PARAMETER IncludePivotTable + Adds a Pivot table using the data in the worksheet. + .PARAMETER PivotTableName + If a Pivot table is created from command line parameters, specificies the name of the new sheet holding the pivot. If Omitted this will be "WorksheetName-PivotTable" + .PARAMETER PivotRows + Name(s) columns from the spreadhseet which will provide the Row name(s) in a pivot table created from command line parameters. + .PARAMETER PivotColumns + Name(s) columns from the spreadhseet which will provide the Column name(s) in a pivot table created from command line parameters. + .PARAMETER PivotFilter + Name(s) columns from the spreadhseet which will provide the Filter name(s) in a pivot table created from command line parameters. + .PARAMETER PivotData + In a pivot table created from command line parameters, the fields to use in the table body is given as a Hash table in the form ColumnName = Average|Count|CountNums|Max|Min|Product|None|StdDev|StdDevP|Sum|Var|VarP . + .PARAMETER PivotDataToColumn + If there are multiple datasets in a PivotTable, by default they are shown seperatate rows under the given row heading; this switch makes them seperate columns. + .PARAMETER NoTotalsInPivot + In a pivot table created from command line parameters, prevents the addition of totals to rows and columns. + .PARAMETER IncludePivotChart + Include a chart with the Pivot table - implies -IncludePivotTable. + .PARAMETER ChartType + The type for Pivot chart (one of Excel's defined chart types) + .PARAMETER NoLegend + Exclude the legend from the pivot chart. + .PARAMETER ShowCategory + Add category labels to the pivot chart. + .PARAMETER ShowPercent + Add Percentage labels to the pivot chart. + .PARAMETER PivotTableDefinition + Instead of describing a single pivot table with mutliple commandline paramters; you can use a HashTable in the form PivotTableName = Definition; + Definition is itself a hashtable with Sheet PivotTows, PivotColumns, PivotData, IncludePivotChart and ChartType values. + .PARAMETER ConditionalFormat + One or more conditional formatting rules defined with New-ConditionalFormattingIconSet. + .PARAMETER ConditionalText + Applies a 'Conditional formatting rule' in Excel on all the cells. When specific conditions are met a rule is triggered. + .PARAMETER BoldTopRow + Makes the top Row boldface. + .PARAMETER NoHeader + Does not put field names at the top of columns. + .PARAMETER RangeName + Makes the data in the worksheet a named range. + .PARAMETER AutoNameRange + Makes each column a named range. + .PARAMETER TableName + Makes the data in the worksheet a table with a name applies a style to it. Name must not contain spaces. + .PARAMETER TableStyle + Selects the style for the named table - defaults to 'Medium6'. + .PARAMETER BarChart + Creates a "quick" bar chart using the first text column as labels and the first numeric column as values + .PARAMETER ColumnChart + Creates a "quick" column chart using the first text column as labels and the first numeric column as values + .PARAMETER LineChart + Creates a "quick" line chart using the first text column as labels and the first numeric column as values + .PARAMETER PieChart + Creates a "quick" pie chart using the first text column as labels and the first numeric column as values + .PARAMETER ExcelChartDefinition + A hash table containing ChartType, Title, NoLegend, ShowCategory, ShowPercent, Yrange, Xrange and SeriesHeader for one or more [non-pivot] charts. + .PARAMETER StartRow + Row to start adding data. 1 by default. Row 1 will contain the title if any. Then headers will appear (Unless -No header is specified) then the data appears. + .PARAMETER StartColumn + Column to start adding data - 1 by default. + .PARAMETER FreezeTopRow + Freezes headers etc. in the top row. + .PARAMETER FreezeFirstColumn + Freezes titles etc. in the left column. + .PARAMETER FreezeTopRowFirstColumn + Freezes top row and left column (equivalent to Freeze pane 2,2 ). + .PARAMETER FreezePane + Freezes panes at specified coordinates (in the form RowNumber , ColumnNumber). + .PARAMETER AutoFilter + Enables the 'Filter' in Excel on the complete header row. So users can easily sort, filter and/or search the data in the select column from within Excel. + .PARAMETER AutoSize + Sizes the width of the Excel column to the maximum width needed to display all the containing data in that cell. + .PARAMETER Show + Opens the Excel file immediately after creation. Convenient for viewing the results instantly without having to search for the file first. + .PARAMETER CellStyleSB + A script block which is run at the end of the process to apply styles to cells (although it can be used for other purposes). + The script block is given three paramaters; an object containing the current worksheet, the Total number of Rows and the number of the last column. + .PARAMETER ReturnRange + If specified, Export-Excel returns the range of added cells in the format "A1:Z100" + .PARAMETER PassThru + If specified, Export-Excel returns an object representing the Excel package without saving the package first. To save it you need to call the save or Saveas method or send it back to Export-Excel. + + .EXAMPLE + C:\> Send-SQLDataToExcel -MsSQLserver -Connection localhost -SQL "select name,type,type_desc from [master].[sys].[all_objects]" -Path .\temp.xlsx -WorkSheetname master -AutoSize -FreezeTopRow -AutoFilter -BoldTopRow + + Connects to the local SQL server and selects 3 columns from [Sys].[all_objects] and exports then to a sheet named master with some basic header management + .EXAMPLE + C:\> $SQL="SELECT top 25 Name,Length From TestData ORDER BY Length DESC" + C:\> $Connection = ' Driver={Microsoft Access Driver (*.mdb, *.accdb)};Dbq=C:\Users\James\Documents\Database1.accdb;' + + C:\> Send-SQLDataToExcel -Connection $connection -SQL $sql -path .\demo1.xlsx -WorkSheetname "Sizes" -AutoSize + + This declares a SQL statement and creates an ODBC connection string to read from an Access file and extracts data from it and sends it to a new worksheet + + .EXAMPLE + C:\> $SQL="SELECT top 25 DriverName, Count(RaceDate) as Races, Count(Win) as Wins, Count(Pole) as Poles, Count(FastestLap) as Fastlaps FROM Results GROUP BY DriverName ORDER BY (count(win)) DESC" + C:\> $Connection = 'Driver={Microsoft Excel Driver (*.xls, *.xlsx, *.xlsm, *.xlsb)};Dbq=C:\users\James\Documents\f1Results.xlsx;' + + C:\> Send-SQLDataToExcel -Connection $connection -SQL $sql -path .\demo1.xlsx -WorkSheetname "Winners" -AutoSize -AutoNameRange -ConditionalFormat @{DataBarColor="Blue"; Range="Wins"} + + This declares a SQL statement and creates an ODBC connection string to read from an Excel file, it then runs the statement and outputs the resulting data to a new spreadsheet. + The spreadsheet is formatted and a data bar added to show make the drivers' wins clearer. + (the F1 results database is available from https://1drv.ms/x/s!AhfYu7-CJv4ehNdZWxJE9LMAX_N5sg ) + .EXAMPLE + C:\> $SQL = "SELECT top 25 DriverName, Count(RaceDate) as Races, Count(Win) as Wins, Count(Pole) as Poles, Count(FastestLap) as Fastlaps FROM Results GROUP BY DriverName ORDER BY (count(win)) DESC" + C:\> Get-SQL -Session F1 -excel -Connection "C:\Users\mcp\OneDrive\public\f1\f1Results.xlsx" -sql $sql -OutputVariable Table | out-null + + C:\> Send-SQLDataToExcel -DataTable $Table -Path ".\demo3.xlsx" -WorkSheetname Gpwinners -autosize -TableName winners -TableStyle Light6 -show + + This uses Get-SQL (at least V1.1 - download from the gallery with Install-Module -Name GetSQL - note the function is Get-SQL the module is GetSQL without the "-" ) + to simplify making database connections and building /submitting SQL statements. + Here it uses the same SQL statement as before; -OutputVariable leaves a System.Data.DataTable object in $table + and Send-SQLDataToExcel puts $table into the worksheet and sets it as an Excel table. + (the F1 results database is available from https://1drv.ms/x/s!AhfYu7-CJv4ehNdZWxJE9LMAX_N5sg ) + .EXAMPLE + C:\> $SQL = "SELECT top 25 DriverName, Count(Win) as Wins FROM Results GROUP BY DriverName ORDER BY (count(win)) DESC" + C:\> Send-SQLDataToExcel -Session $DbSessions["f1"] -SQL $sql -Path ".\demo3.xlsx" -WorkSheetname Gpwinners -autosize -ColumnChart + + Like the previous example, this uses Get-SQL (download from the gallery with Install-Module -Name GetSQL). It uses the connection which Get-SQL made rather than an ODFBC connection string + Here the data is presented as a quick chart. + .EXAMPLE + C:\> Send-SQLDataToExcel -path .\demo3.xlsx -WorkSheetname "LR" -Connection "DSN=LR" -sql "SELECT name AS CollectionName FROM AgLibraryCollection Collection ORDER BY CollectionName" + + This example uses an Existing ODBC datasource name "LR" which maps to an adobe lightroom database and gets a list of collection names into a worksheet + #> + [CmdletBinding()] + [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSAvoidUsingPlainTextForPassword","")] + param ( + [Parameter(ParameterSetName="SQLConnection", Mandatory=$true)] + [Parameter(ParameterSetName="ODBCConnection",Mandatory=$true)] + $Connection, + [Parameter(ParameterSetName="ExistingSession",Mandatory=$true)] + [System.Data.Common.DbConnection]$Session, + [Parameter(ParameterSetName="SQLConnection",Mandatory=$true)] + [switch]$MsSQLserver, + [Parameter(ParameterSetName="SQLConnection")] + [String]$DataBase, + [Parameter(ParameterSetName="SQLConnection", Mandatory=$true)] + [Parameter(ParameterSetName="ODBCConnection",Mandatory=$true)] + [Parameter(ParameterSetName="ExistingSession",Mandatory=$true)] + [string]$SQL, + [int]$QueryTimeout, + [Parameter(ParameterSetName="Pre-FetchedData",Mandatory=$true)] + [System.Data.DataTable]$DataTable, + $Path, + [String]$WorkSheetname = 'Sheet1', + [Switch]$KillExcel, + [Switch]$Show, + [String]$Title, + [OfficeOpenXml.Style.ExcelFillStyle]$TitleFillPattern = 'None', + [Switch]$TitleBold, + [Int]$TitleSize = 22, + $TitleBackgroundColor, + [String]$Password, + [Hashtable]$PivotTableDefinition, + [Switch]$IncludePivotTable, + [String[]]$PivotRows, + [String[]]$PivotColumns, + $PivotData, + [String[]]$PivotFilter, + [Switch]$PivotDataToColumn, + [Switch]$NoTotalsInPivot, + [Switch]$IncludePivotChart, + [OfficeOpenXml.Drawing.Chart.eChartType]$ChartType = 'Pie', + [Switch]$NoLegend, + [Switch]$ShowCategory, + [Switch]$ShowPercent, + [Switch]$AutoSize, + [Switch]$FreezeTopRow, + [Switch]$FreezeFirstColumn, + [Switch]$FreezeTopRowFirstColumn, + [Int[]]$FreezePane, + [Switch]$AutoFilter, + [Switch]$BoldTopRow, + [Switch]$NoHeader, + [String]$RangeName, + [String]$TableName, + [OfficeOpenXml.Table.TableStyles]$TableStyle = 'Medium6', + [Switch]$Barchart, + [Switch]$PieChart, + [Switch]$LineChart , + [Switch]$ColumnChart , + [Object[]]$ExcelChartDefinition, + [Switch]$AutoNameRange, + [Object[]]$ConditionalFormat, + [Object[]]$ConditionalText, + [ScriptBlock]$CellStyleSB, + [Int]$StartRow = 1, + [Int]$StartColumn = 1, + [Switch]$ReturnRange, + [Switch]$Passthru + ) + + if ($KillExcel) { + Get-Process excel -ErrorAction Ignore | Stop-Process + while (Get-Process excel -ErrorAction Ignore) {Start-Sleep -Milliseconds 250} + } + + #We were either given a session object or a connection string (with, optionally a MSSQLServer parameter) + # If we got -MSSQLServer, create a SQL connection, if we didn't but we got -Connection create an ODBC connection + if ($MsSQLserver -and $Connection) { + if ($Connection -notmatch "=") {$Connection = "server=$Connection;trusted_connection=true;timeout=60"} + $Session = New-Object -TypeName System.Data.SqlClient.SqlConnection -ArgumentList $Connection + if ($Session.State -ne 'Open') {$Session.Open()} + if ($DataBase) {$Session.ChangeDatabase($DataBase) } + } + elseif ($Connection) { + $Session = New-Object -TypeName System.Data.Odbc.OdbcConnection -ArgumentList $Connection ; $Session.ConnectionTimeout = 30 + } + + If ($session) { + #A session was either passed in or just created. If it's a SQL one make a SQL DataAdapter, otherwise make an ODBC one + if ($Session.GetType().name -match "SqlConnection") { + $dataAdapter = New-Object -TypeName System.Data.SqlClient.SqlDataAdapter -ArgumentList ( + New-Object -TypeName System.Data.SqlClient.SqlCommand -ArgumentList $SQL, $Session) + } + else { + $dataAdapter = New-Object -TypeName System.Data.Odbc.OdbcDataAdapter -ArgumentList ( + New-Object -TypeName System.Data.Odbc.OdbcCommand -ArgumentList $SQL, $Session ) + } + if ($QueryTimeout) {$dataAdapter.SelectCommand.CommandTimeout = $ServerTimeout} + + #Both adapter types output the same kind of table, create one and fill it from the adapter + $DataTable = New-Object -TypeName System.Data.DataTable + $rowCount = $dataAdapter.fill($dataTable) + Write-Verbose -Message "Query returned $rowCount row(s)" + } + if ($DataTable.Rows.Count) { + #ExportExcel user a -NoHeader parameter so that's what we use here, but needs to be the other way around. + $printHeaders = -not $NoHeader + if ($Title) {$r = $StartRow +1 } + else {$r = $StartRow} + #Get our Excel sheet and fill it with the data + $excelPackage = Export-Excel -Path $Path -WorkSheetname $WorkSheetname -PassThru + $excelPackage.Workbook.Worksheets[$WorkSheetname].Cells[$r,$StartColumn].LoadFromDataTable($dataTable, $printHeaders ) | Out-Null + + #Apply date format + for ($c=0 ; $c -lt $DataTable.Columns.Count ; $c++) { + if ($DataTable.Columns[$c].DataType -eq [datetime]) { + Set-ExcelColumn -Worksheet $excelPackage.Workbook.Worksheets[$WorkSheetname] -Column ($c +1) -NumberFormat 'Date-Time' + } + } + + #Call export-excel with any parameters which don't relate to the SQL query + "Connection", "Database" , "Session", "MsSQLserver", "Destination" , "SQL" , "DataTable", "Path" | ForEach-Object {$null = $PSBoundParameters.Remove($_) } + Export-Excel -ExcelPackage $excelPackage @PSBoundParameters + } + else {Write-Warning -Message "No Data to insert."} + #If we were passed a connection and opened a session, close that session. + if ($Connection) {$Session.close() } +} diff --git a/PowerShell/Set_Extended_Events_Sessions_to_AutoStart.ps1 b/PowerShell/Set_Extended_Events_Sessions_to_AutoStart.ps1 index b293cde8..214218f9 100644 --- a/PowerShell/Set_Extended_Events_Sessions_to_AutoStart.ps1 +++ b/PowerShell/Set_Extended_Events_Sessions_to_AutoStart.ps1 @@ -1,97 +1,97 @@ -< -.Synopsis - Connects to the servers in the DBA Database and for Servers above 2012 sets alwayson_health Extended Events Sessions to Auto-Start and starts it if it is not running -.DESCRIPTION - Sets Extended Events Sessions to Auto-Start and starts it if it is not running -.EXAMPLE - Alter the XEvent name and DBADatabase name or add own server list and run -.NOTES - Author: Rob Sewell - Original Link: https://sqldbawithabeard.com/2016/03/28/using-powershell-to-set-extended-events-sessions-to-autostart/#comments - Created Date: 2016-03-20 -> -$DBADatabaseServer -$XEName = 'AlwaysOn_health' -## Query to gather the servers required -$Query = @" - -SELECT - -IL.ServerName - -FROM [dbo].[InstanceList] IL - -WHERE NotContactable = 0 - -AND Inactive = 0 - -"@ - -Try -{ -$Results = (Invoke-Sqlcmd -ServerInstance $DBADatabaseServer -Database DBADatabase -Query $query -ErrorAction Stop).ServerName -} - -catch -{ -Write-Error "Unable to Connect to the DBADatabase - Please Check" -} - -foreach($Server in $Results) - - { - try - { - $srv = New-Object ('Microsoft.SqlServer.Management.Smo.Server') $Server - } - catch - { - Write-Output " Failed to connect to $Server" - continue - } - # To ensure we have a connection to the server - if (!( $srv.version)){ - Write-Output " Failed to Connect to $Server" - continue - } - if($srv.versionmajor -ge '11') - { - ## NOTE this checks if there are Availability Groups - you may need to change this - if ($srv.AvailabilityGroups.Name) - { - $AGNames = $srv.AvailabilityGroups.Name - ## Can we connect to the XEStore? - if(Test-Path SQLSERVER:\XEvent\$Server) - { - $XEStore = get-childitem -path SQLSERVER:\XEvent\$Server -ErrorAction SilentlyContinue | where {$_.DisplayName -ieq 'default'} - $AutoStart = $XEStore.Sessions[$XEName].AutoStart - $Running = $XEStore.Sessions[$XEName].IsRunning - Write-Output "$server for $AGNames --- $XEName -- $AutoStart -- $Running" - if($AutoStart -eq $false) - - { - $XEStore.Sessions[$XEName].AutoStart = $true - $XEStore.Sessions[$XEName].Alter() - } - - if($Running -eq $false) - { - $XEStore.Sessions[$XEName].Start() - } - } - else - { - Write-Output "Failed to connect to XEvent on $Server" - } - } - - else - { - ## Write-Output "No AGs on $Server" - } - } - else - { - ## Write-Output "$server not 2012 or above" - } -} +<# +.Synopsis + Connects to the servers in the DBA Database and for Servers above 2012 sets alwayson_health Extended Events Sessions to Auto-Start and starts it if it is not running +.DESCRIPTION + Sets Extended Events Sessions to Auto-Start and starts it if it is not running +.EXAMPLE + Alter the XEvent name and DBADatabase name or add own server list and run +.NOTES + Author: Rob Sewell + Original Link: https://sqldbawithabeard.com/2016/03/28/using-powershell-to-set-extended-events-sessions-to-autostart/#comments + Created Date: 2016-03-20 +#> +$DBADatabaseServer +$XEName = 'AlwaysOn_health' +## Query to gather the servers required +$Query = @" + +SELECT + +IL.ServerName + +FROM [dbo].[InstanceList] IL + +WHERE NotContactable = 0 + +AND Inactive = 0 + +"@ + +Try +{ +$Results = (Invoke-Sqlcmd -ServerInstance $DBADatabaseServer -Database DBADatabase -Query $query -ErrorAction Stop).ServerName +} + +catch +{ +Write-Error "Unable to Connect to the DBADatabase - Please Check" +} + +foreach($Server in $Results) + + { + try + { + $srv = New-Object ('Microsoft.SqlServer.Management.Smo.Server') $Server + } + catch + { + Write-Output " Failed to connect to $Server" + continue + } + # To ensure we have a connection to the server + if (!( $srv.version)){ + Write-Output " Failed to Connect to $Server" + continue + } + if($srv.versionmajor -ge '11') + { + ## NOTE this checks if there are Availability Groups - you may need to change this + if ($srv.AvailabilityGroups.Name) + { + $AGNames = $srv.AvailabilityGroups.Name + ## Can we connect to the XEStore? + if(Test-Path SQLSERVER:\XEvent\$Server) + { + $XEStore = get-childitem -path SQLSERVER:\XEvent\$Server -ErrorAction SilentlyContinue | where {$_.DisplayName -ieq 'default'} + $AutoStart = $XEStore.Sessions[$XEName].AutoStart + $Running = $XEStore.Sessions[$XEName].IsRunning + Write-Output "$server for $AGNames --- $XEName -- $AutoStart -- $Running" + if($AutoStart -eq $false) + + { + $XEStore.Sessions[$XEName].AutoStart = $true + $XEStore.Sessions[$XEName].Alter() + } + + if($Running -eq $false) + { + $XEStore.Sessions[$XEName].Start() + } + } + else + { + Write-Output "Failed to connect to XEvent on $Server" + } + } + + else + { + ## Write-Output "No AGs on $Server" + } + } + else + { + ## Write-Output "$server not 2012 or above" + } +} diff --git a/PowerShell/Shred-XElogs.ps1 b/PowerShell/Shred-XElogs.ps1 new file mode 100644 index 00000000..f5c36b93 --- /dev/null +++ b/PowerShell/Shred-XElogs.ps1 @@ -0,0 +1,183 @@ +<# +.SYNOPSIS + Load Extended Events via Powershell. +.PARAMETR + fileWithPath +.PARAMETR + serverName +.PARAMETR + fileName +.EXAMPLE + Shred-XElogs -fileWithPath $XEFilePath -serverName $server -fileName $XEFile +.NOTES + Author: Aakash Patel + Created date: 2017-08-22 + Original Link: http://www.sqlservercentral.com/articles/PowerShell/160582 + +#> + + Function Shred-XElogs{ + param( + [Parameter(Position=0, Mandatory=$true)] [string] $fileWithPath, + [Parameter(Position=1, Mandatory=$true)] [string] $serverName, + [Parameter(Position=2, Mandatory=$true)] [string] $fileName + ) + Try + { + #Load the required assemblies + $dllpath = "C:\Program Files\Microsoft SQL Server\110\Shared\Microsoft.SqlServer.XEvent.Linq.dll" + if(([appdomain]::currentdomain.getassemblies() | Where {$_.Location -match "Microsoft.SqlServer.XEvent.Linq.dll"}) -eq $null) + { + Write-Host "Assembly not found. Loading it from $dllpath" `r`n + [System.Reflection.Assembly]::LoadFrom($dllpath) + } + else + { + write-host "Assembly is already loaded." `r`n + } + [System.Reflection.Assembly]::LoadFrom($dllpath) + #create data table + $dt = New-Object System.Data.Datatable + #Define Columns + $server_name = New-Object system.Data.DataColumn 'server_name',([string]) + $xe_load_date = New-Object system.Data.DataColumn 'xe_load_date',([DateTime]) + $start_date = New-Object system.Data.DataColumn 'start_date',([DateTime]) + $end_time = New-Object system.Data.DataColumn 'end_time',([datetime]) + $text_data = New-Object system.Data.DataColumn 'text_data',([string]) + $duration = New-Object system.Data.DataColumn 'duration',([int64]) + $logicalreads = New-Object system.Data.DataColumn 'logicalreads',([int64]) + $physicalreads = New-Object system.Data.DataColumn 'physicalreads',([int]) + $EndResult = New-Object system.Data.DataColumn 'EndResult',([int]) + $RowCount = New-Object system.Data.DataColumn 'RowCount',([int]) + $ObjectName = New-Object system.Data.DataColumn 'ObjectName',([string]) + $writes = New-Object system.Data.DataColumn 'writes',([int]) + $CPU = New-Object system.Data.DataColumn 'CPU',([int64]) + $event_name = New-Object system.Data.DataColumn 'event_name',([string]) + $database_id = New-Object system.Data.DataColumn 'database_id',([int]) + $hostname = New-Object system.Data.DataColumn 'hostname',([string]) + $application_name = New-Object system.Data.DataColumn 'application_name',([string]) + $login_name = New-Object system.Data.DataColumn 'login_name',([string]) + $hostname = New-Object system.Data.DataColumn 'hostname',([string]) + $spid = New-Object system.Data.DataColumn 'spid',([int]) + $xe_log_file = New-Object system.Data.DataColumn 'xe_log_file',([string]) + # create columns + [void]$dt.Columns.Add($server_name) + [void]$dt.Columns.Add($xe_load_date) + [void]$dt.Columns.Add($start_date) + [void]$dt.Columns.Add($end_time) + [void]$dt.Columns.Add($text_data) + [void]$dt.Columns.Add($duration) + [void]$dt.Columns.Add($logicalreads) + [void]$dt.Columns.Add($physicalreads) + [void]$dt.Columns.Add($EndResult) + [void]$dt.Columns.Add($RowCount) + [void]$dt.Columns.Add($ObjectName) + [void]$dt.Columns.Add($writes) + [void]$dt.Columns.Add($CPU) + [void]$dt.Columns.Add($event_name) + [void]$dt.Columns.Add($database_id) + [void]$dt.Columns.Add($hostname) + [void]$dt.Columns.Add($application_name)b + [void]$dt.Columns.Add($login_name) + [void]$dt.Columns.Add($spid) + [void]$dt.Columns.Add($xe_log_file) + $events = New-Object Microsoft.SqlServer.XEvent.Linq.QueryableXEventData($fileWithPath) + $events | % { + $currentEvent = $_ + $row = $dt.NewRow() + $audittime = Get-Date + $row.server_name = $serverName + $row.xe_load_date = [DateTime] $audittime + $row.end_time = $currentEvent.Timestamp.LocalDateTime + $row.duration = $currentEvent.Fields["duration"].Value + $row.logicalreads = $currentEvent.Fields["logical_reads"].Value + $row.physicalreads = $currentEvent.Fields["physical_reads"].Value + $row.EndResult = $currentEvent.Fields["result"].Value.Key + $row.RowCount = $currentEvent.Fields["row_count"].Value + $row.ObjectName = $currentEvent.Fields["object_name"].Value + $row.writes = $currentEvent.Fields["writes"].Value + $row.CPU = $currentEvent.Fields["cpu_time"].Value + $row.event_name = $currentEvent.name + $row.database_id = $currentEvent.Actions["database_id"].Value + $row.hostname = $currentEvent.Actions["client_hostname"].Value + $row.application_name = $currentEvent.Actions["client_app_name"].Value + $row.login_name = $currentEvent.Actions["server_principal_name"].Value + $row.spid = $currentEvent.Actions["session_id"].Value + $row.xe_log_file = $fileName + if($currentEvent.name -eq 'sql_batch_completed') {$row.text_data = $currentEvent.Fields["batch_text"].Value} + else {$row.text_data = $currentEvent.Fields["statement"].Value} + $dt.Rows.Add($row) + } + $cn = new-object System.Data.SqlClient.SqlConnection("Data Source=MyDevServer.domainname;Integrated Security=SSPI;Initial Catalog=AdventureWorks"); + $cn.Open() + $bc = new-object ("System.Data.SqlClient.SqlBulkCopy") $cn + $bc.BulkCopyTimeout = 1200 #you can increase if required + $bc.DestinationTableName = "dbo.xe_audit_collection" + [void]$bc.ColumnMappings.Add("server_name",$dt.Columns.ColumnName[0]) + [void]$bc.ColumnMappings.Add("xe_load_date",$dt.Columns.ColumnName[1]) + [void]$bc.ColumnMappings.Add("end_time",$dt.Columns.ColumnName[3]) + [void]$bc.ColumnMappings.Add("text_data",$dt.Columns.ColumnName[4]) + [void]$bc.ColumnMappings.Add("duration", $dt.Columns.ColumnName[5]) + [void]$bc.ColumnMappings.Add("logicalreads",$dt.Columns.ColumnName[6]) + [void]$bc.ColumnMappings.Add("physicalreads",$dt.Columns.ColumnName[7]) + [void]$bc.ColumnMappings.Add("EndResult",$dt.Columns.ColumnName[8]) + [void]$bc.ColumnMappings.Add("RowCount",$dt.Columns.ColumnName[9]) + [void]$bc.ColumnMappings.Add("ObjectName",$dt.Columns.ColumnName[10] ) + [void]$bc.ColumnMappings.Add("writes",$dt.Columns.ColumnName[11]) + [void]$bc.ColumnMappings.Add("CPU",$dt.Columns.ColumnName[12]) + [void]$bc.ColumnMappings.Add("event_name",$dt.Columns.ColumnName[13] ) + [void]$bc.ColumnMappings.Add("database_id",$dt.Columns.ColumnName[14]) + [void]$bc.ColumnMappings.Add("hostname",$dt.Columns.ColumnName[15] ) + [void]$bc.ColumnMappings.Add("application_name", $dt.Columns.ColumnName[16]) + [void]$bc.ColumnMappings.Add("login_name",$dt.Columns.ColumnName[17]) + [void]$bc.ColumnMappings.Add("spid",$dt.Columns.ColumnName[18) + [void]$bc.ColumnMappings.Add("xe_log_file",$dt.Columns.ColumnName[19] ) + $bc.WriteToServer($dt) + write-host " $($dt.rows.count) Rows have been transferred to SQL Server destination"`r`n + $cn.Close() + $events.Dispose() + $result = "`n Loading of file $XEFilePath complete! `n" + } + Catch + { + $result = $_.Exception + $FailedItem = $_.Exception.ItemName + + } + return $result + } + #### Load your First File ##### + $XEFilePath = "Z:\xe_log\OLTPServer\xe_troubleshoot_log_01.xel" ## file location + $server = "OLTPServer" ## server name, you are collecting XE data + $XEFile = "xe_troubleshoot_log_01.xel" ## XE File Name + Shred-XElogs -fileWithPath $XEFilePath -serverName $server -fileName $XEFile + + <# +--------------------Destination Table Definition --------------- + CREATE TABLE [dbo].[xe_audit_collection]( + [xe_id] [bigint] IDENTITY(1,1) NOT NULL, + [server_name] [sysname] NOT NULL, + [xe_load_date] [datetime2](7) NULL, + [end_time] [datetime2](7) NULL, + [text_data] [varchar](max) NULL, + [duration] [bigint] NULL, + [logicalreads] [bigint] NULL, + [physicalreads] [bigint] NULL, + [EndResult] [int] NULL, + [RowCount] [bigint] NULL, + [ObjectName] [varchar](250) NULL, + [writes] [bigint] NULL, + [CPU] [bigint] NULL, + [event_name] [varchar](100) NULL, + [database_id] [int] NULL, + [hostname] [sysname] NOT NULL, + [application_name] [sysname] NULL, + [login_name] [sysname] NULL, + [spid] [int] NULL, + [xe_log_file] [varchar](250) NULL, + [start_time] AS (dateadd(millisecond, -CONVERT([int],[duration]/(1000)),[end_time])) PERSISTED + ) + GO +----------------------------------------------------------------- +#> + \ No newline at end of file diff --git a/PowerShell/Test-SQLScripts.ps1 b/PowerShell/Test-SQLScripts.ps1 new file mode 100644 index 00000000..e18fdcd1 --- /dev/null +++ b/PowerShell/Test-SQLScripts.ps1 @@ -0,0 +1,265 @@ +<# +.SYNOPSIS +Scans a (list of) T-SQL script files(s) and returns information about the operations being performed by them. + +.DESCRIPTION +This function utilizes the SQL Server ScriptDom Parser object to parse and return information about each batch and statements within each batch +of T-SQL commands they contain. It will return an object that contains high-level information, as well as a batches object which in turn contains +statement objects. + +.PARAMETER Files +The [System.IO.FileInfo] object containing the files you want to scan. This type of object is usually returned from a Get-ChildItem cmdlet, so you can pipe the +results of it to this function. Required. + +.PARAMETER PathToScriptDomLibrary +This function requires the use of the Microsoft.SqlServer.TransactSql.ScriptDom object, which is NOT part of the standard SQL Server client libraries. Instead, +it is installed as part of a SQL Server installation. Which means to use this function, you either have to run it on a host that has SQL Server installed, or you +need a copy of the library locally. If you're using the latter, you need to manually provide the path to the Microsoft.SqlServer.TransactSql.ScriptDom.DLL file. +This path will be used as part of Add-Type to load the library which contains all the required namespaces and object code. Defaults to empty. + +.PARAMETER UseQuotedIdentifier +Whether or not the quoted identifier option is turned on for the parser. Defaults to true and is passed to the object instantiation. + +.NOTES +Out-of-the-box this function will search for: + - DML statements (INSERT, UPDATE, DELETE) + - Certain DDL Statements: + - ALTER TABLE + - DROP INDEX + - CREATE INDEX + - CREATE PROCEDURE + - DROP PROCEDURE + +You can extend the tests by adding a new [ParserKey] object to the $ParserKeys array. For now, these defined tests live in the code +but I expect them to be an external json file at some point. + +Author: Drew Furgiuele (@pittfurg, port1433.com) +Tags: T-SQL, Parser + +.LINK + +.EXAMPLE +$Results = Get-ChildItem -Path C:\Scripts | ./Test-SQLScripts.ps1 + +Execute the parser against a list of files returned from the Get-ChildItem cmdlet and store the returned object in the $Results variable + +.EXAMPLE +$Results = Get-ChildItem -Path C:\Scripts | ./Test-SQLScripts.ps1 -PathToScriptDomLibrary "C:\Program Files (x86)\Microsoft SQL Server\130\SDK\Assemblies\Microsoft.SqlServer.TransactSql.ScriptDom.dll" + +Same as above example, but manually point to where the parser library is stored (useful for hosts that don't have SQL Server installed and you manually +copied the library to it). + + +#> +[cmdletbinding()] +param( + [Parameter( + Mandatory = $true, + Position = 0, + ValueFromPipeline = $true, + ValueFromPipelineByPropertyName = $true) + ] [System.IO.FileInfo] $Files, + [Parameter(Mandatory=$false)] [string] $PathToScriptDomLibrary = $null, + [Parameter(Mandatory=$false)] [string] $UseQuotedIdentifier = $true +) + + +begin { + $ParserKeys = @() + + Class ParserKey { + [string] $ObjectType + [string] $SchemaSpecification + ParserKey ([string] $ObjectType, [string] $SchemaSpecification) { + $this.ObjectType = $ObjectType + $this.SchemaSpecification = $SchemaSpecification + } + } + + $ParserKeys += New-Object Parserkey ("SelectStatement","Queryexpression.Fromclause.Tablereferences.Schemaobject") + $ParserKeys += New-Object Parserkey ("InsertStatement","InsertSpecification.Target.SchemaObject") + $ParserKeys += New-Object Parserkey ("UpdateStatement","UpdateSpecification.Target.SchemaObject") + $ParserKeys += New-Object Parserkey ("DeleteStatement","DeleteSpecification.Target.SchemaObject") + $ParserKeys += New-Object Parserkey ("AlterTableAddTableElementStatement","SchemaObjectName") + $ParserKeys += New-Object Parserkey ("AlterTableDropTableElementStatement","SchemaObjectName") + $ParserKeys += New-Object Parserkey ("DropIndexStatement","DropIndexClauses.Object") + $ParserKeys += New-Object Parserkey ("CreateIndexStatement","OnName") + $ParserKeys += New-Object Parserkey ("CreateProcedureStatement","ProcedureReference.Name") + $ParserKeys += New-Object Parserkey ("CreateTableStatement","SchemaObjectName") + $ParserKeys += New-Object Parserkey ("DropProcedureStatement","Objects") + $ParserKeys += New-Object Parserkey ("DropTableStatement","Objects") + + + function Get-UpdatedTableFromReferences($TableReference) { + Write-Verbose "Looks like a joined DML statement, need to get into the references..." + if ($TableReference.FirstTableReference) { + Get-UpdatedTableFromReferences $TableReference.FirstTableReference + } else { + Write-Verbose "closing recursion..." + Return $TableReference.SchemaObject + } + } + + function Get-Statement ($Statement, $Keys) { + $StatementObject = [PSCustomObject] @{ + PSTypeName = "Parser.DOM.Statement" + ScriptName = $f.Name + BatchNumber= $TotalBatches + StatementNumber = $TotalStatements + StatementType = $null + Action = $null + IsQualified = $false + OnObjectSchema = $null + OnObjectName = $null + } + + Add-Member -InputObject $StatementObject -Type ScriptMethod -Name ToString -Value { $this.psobject.typenames[0] } -Force + + $StatementObject.Action = ($Statement.ScriptTokenStream | Where-Object {$_.Line -eq $Statement.StartLine -and $_.Column -eq $Statement.StartColumn}).Text.ToUpper() + + if ($statementObject.Action -eq "If") { + Write-Verbose "Found an an 'IF' statement, looking at the 'THEN' part of the statement..." + if ($Statement.ThenStatement.StatementList.Statements.Count -ge 1) { + $SubStatements = $Statement.ThenStatement.StatementList.Statements + ForEach ($su in $subStatements) { + $StatementObject = Get-Statement $su $keys + } + } else { + $StatementObject = Get-Statement $Statement.ThenStatement $keys + } + $StatementObject.IsQualified = $true + } else { + $Property = $Statement + $ObjectType = ($Keys | Where-Object {$_.ObjectType -eq $Statement.gettype().name}).ObjectType + Write-Verbose "Object type: $ObjectType" + if ($ObjectType -eq "UpdateStatement" -and $statement.UpdateSpecification.WhereClause -ne $null -and $statement.UpdateSpecification.SetClauses -ne $null) { + $SchemaObject = Get-UpdatedTableFromReferences $Statement.UpdateSpecification.FromClause.TableReferences.FirstTableReference + $StatementObject.OnObjectSchema = $SchemaObject.SchemaIdentifier.Value + $StatementObject.OnObjectName = $SchemaObject.BaseIdentifier.Value + } elseif ($ObjectType -eq "SelectStatement" -and $statement.Queryexpression.fromclause.tablereferences.FirstTableReference -ne $null) { + $SchemaObject = Get-UpdatedTableFromReferences $statement.Queryexpression.fromclause.tablereferences.FirstTableReference + $StatementObject.OnObjectSchema = $SchemaObject.SchemaIdentifier.Value + $StatementObject.OnObjectName = $SchemaObject.BaseIdentifier.Value + } else { + try { + $StatementObject.StatementType = $Statement.GetType().Name.ToString() + $SplitDefinition = (($Keys | Where-Object {$_.ObjectType -eq $Statement.gettype().name}).SchemaSpecification).Split(".") + ForEach ($def in $SplitDefinition) { + $Property = $Property | Select-Object -ExpandProperty $def + } + $StatementObject.OnObjectSchema = $Property.SchemaIdentifier.Value + $StatementObject.OnObjectName = $Property.BaseIdentifier.Value + } catch { + Write-Warning "Parsed statement has no descernible statement type. Maybe define one as a parser key?" + } + } + } + return $StatementObject + + } + + $LibraryLoaded = $false + $ObjectCreated = $false + $LibraryVersions = @(13,12,11) + + if ($PathToScriptDomLibrary -ne "") { + try { + Add-Type -Path $PathToScriptDomLibrary -ErrorAction SilentlyContinue + Write-Verbose "Loaded library from path $PathToScriptDomLibrary" + } catch { + throw "Couldn't load the required ScriptDom library from the path specified!" + } + } else { + ForEach ($v in $LibraryVersions) + { + if (!$LibraryLoaded) { + try { + Add-Type -AssemblyName "Microsoft.SqlServer.TransactSql.ScriptDom,Version=$v.0.0.0,Culture=neutral,PublicKeyToken=89845dcd8080cc91" -ErrorAction SilentlyContinue + Write-Verbose "Loaded version $v.0.0.0 of the ScriptDom library." + $LibraryLoaded = $true + } catch { + Write-Verbose "Couldn't load version $v.0.0.0 of the ScriptDom library." + } + } + } + } + + ForEach ($v in $LibraryVersions) + { + if (!$ObjectCreated) { + try { + $ParserNameSpace = "Microsoft.SqlServer.TransactSql.ScriptDom.TSql" + $v + "0Parser" + $Parser = New-Object $ParserNameSpace($UseQuotedIdentifier) + $ObjectCreated = $true + Write-Verbose "Created parser object for version $v..." + } catch { + Write-Verbose "Couldn't load version $v.0.0.0 of the ScriptDom library." + } + } + } + + if (!$ObjectCreated) { + throw "Unable to create ScriptDom library; did you load the right version of the library?" + } + +} + + +process { + ForEach ($f in $Files) { + $CurrentFileName = $f.FullName + Write-Verbose "Parsing $CurrentFileName..." + $Reader = New-Object System.IO.StreamReader($f.FullName) + $Errors= $null + $Fragment = $Parser.Parse($Reader, [ref] $Errors) + + [bool] $HasErrors = $false + if ($Errors -ne $null) { + [bool] $HasErrors = $true + } + + $ScriptObject = [PSCustomObject] @{ + PSTypeName = "Parser.DOM.Script" + ScriptName = $f.Name + ScriptFilePath = $f.FullName + NumberOfBatches = $Fragment.Batches.Count + HasParseErrors = $HasErrors + Errors = $Errors + Batches = @() + } + + Add-Member -InputObject $ScriptObject -Type ScriptMethod -Name ToString -Value { $this.psobject.typenames[0] } -Force + + + $TotalBatches = 0 + ForEach ($b in $Fragment.Batches) { + $TotalBatches++; + + $BatchObject = [pscustomobject] @{ + PSTypeName = "Parser.DOM.Batch" + ScriptName = $f.Name + BatchNumber = $TotalBatches + Statements = @() + } + + Add-Member -InputObject $BatchObject -Type ScriptMethod -Name ToString -Value { $this.psobject.typenames[0] } -Force + + $TotalStatements = 0 + ForEach ($s in $b.Statements) { + $TotalStatements++ + $StatementObject = Get-Statement $s $ParserKeys + + $BatchObject.Statements += $StatementObject + } + $ScriptObject.Batches += $BatchObject + } + + $Reader.Close() + + $ScriptObject + } +} + +end { + $Reader.Dispose() +} diff --git a/PowerShell/Truncate-AllTables.ps1 b/PowerShell/Truncate-AllTables.ps1 new file mode 100644 index 00000000..abc10b30 --- /dev/null +++ b/PowerShell/Truncate-AllTables.ps1 @@ -0,0 +1,70 @@ +<# +.SYNOPSIS + Truncate all tables in database. +.DESCRIPTION + Truncate all tables in database. Drop and recreate all foreign keys. +.PARAMETR + Machine - specify path to computer +.PARAMETR + SqlInstance - specify SQL Server instance name +.PARAMETR + DBname - specify database name +.EXAMPLE +Truncate-AllTables -Machine "hostname" +.NOTES + Requires: Powershell version 3 or higher, sqlps module + Tested on: SQL Server 2014/2016 + Author: Jeffrey Yao + Author Modified: Alexandr Titenko + Created date: 2016-03-15 + Last modified: 2017-02-16 +#> + +function Truncate-AllTables { + + param ( + #Specify path to computer + [Parameter(Mandatory=$false)] + [String]$Machine = $env:COMPUTERNAME, + #Specify SQL Server instance name + [Parameter(Mandatory=$false)] + [String]$SqlInstance = 'default', + #Specify database name + [Parameter(Mandatory=$false)] + [String]$DBname = 'DBName' + ) +import-module sqlps -DisableNameChecking; +set-location c:\; +Write-Host "[*] Start at $(Get-Date -Format 'HH.mm.ss')" -foreground:yellow +$sw = [Diagnostics.Stopwatch]::StartNew() + +[String]$FT_index=''; + +[Microsoft.SqlServer.Management.Smo.Database]$db = get-item "sqlserver:\sql\$Machine\$SqlInstance\databases\$($DBname)"; +$db.tables.Refresh(); + +#script out FKs and save it to variable $fk_script +$db.tables | % -begin {[string]$fk_script=''} -process {$_.foreignkeys.refresh(); $_.foreignkeys | % {$fk_script +=$_.script() +";`r`n"} } + +#drop foreign keys +$db.tables | % -begin {$fks=@()} -process { $fks += $_.ForeignKeys }; +foreach ($fk in $fks) {$fk.drop();} + +foreach ($t in $db.tables ) +{ + $t.TruncateData(); #direct truncate + write-host "truncate table [$($t.Schema)].[$($t.name)]" -ForegroundColor yellow +} + +#resetup the FKs +$db.ExecuteNonQuery($fk_script); +$db = $null; +$svr = $null; + +Write-Host "[*] Finish at $(Get-Date -Format 'HH.mm.ss')" -foreground:yellow +Write-Host "Duration:" +$sw.Stop(); +$sw.Elapsed | Format-Table -Property Minutes, Seconds, Milliseconds -AutoSize; +} + +Truncate-AllTables \ No newline at end of file diff --git a/PowerShell/WOX_Permissions.ps1 b/PowerShell/WOX_Permissions.ps1 index 5618ca15..d4c69b2a 100644 --- a/PowerShell/WOX_Permissions.ps1 +++ b/PowerShell/WOX_Permissions.ps1 @@ -1,116 +1,116 @@ - # ======================================================================================================== - # - # NAME: WOX_Permissions.ps1 - # - # This script can be used to step through the various levels of security on each of your SQL Server instances. - # It is recommended to run this script with a domain account that can access the AD to collect group information. - # Thanks go to Greg Burns whose original post here: http://www.alaskasql.org/Blog/Post/35/Audit-All-SQL-User-Security-with-PowerShell - # inspired this evolution. - # - # This script returns: - # - The Server Name, Versionm, edition and Login mode - # - For each Login found on the SQL Server instance - # - Name - # - Type - SQL or Windows - # - Create date - # - Default DB - # - Disabled? - # - Server role (in Red if sysadmin) - # - If Type is a Windows AD group each member's name and Login - # - Database roles - # - Any explicitily granted permissions - # - # The script runs based on a list of server names located in c:\temp\instances.txt. - # Named instances can be listed as Hostname\instancename. - # The text file should contain one instance per line. - # All output is to the console (Formatting was easier). - # - # (C) 2016, WaterOx Consulting, Inc. - # See https://WaterOxConsulting.com/eula for the End User Licensing Agreement. - # - # ======================================================================================================== - - Function GetDBUserInfo($Dbase) - { - if ($dbase.status -eq "Normal") # ensures the DB is online before checking - {$users = $Dbase.users | where {$_.login -eq $SQLLogin.name} # Ignore the account running this as it is assumed to be an admin account on all servers - foreach ($u in $users) - { - if ($u) - { - $DBRoles = $u.enumroles() - foreach ($role in $DBRoles) { - if ($role -eq "db_owner") { - write-host $role "on"$Dbase.name -foregroundcolor "red" #if db_owner set text color to red - } - else { - write-host $role "on"$Dbase.name - } - } - #Get any explicitily granted permissions - foreach($perm in $Dbase.EnumObjectPermissions($u.Name)){ - write-host $perm.permissionstate $perm.permissiontype "on" $perm.objectname "in" $DBase.name } - } - } # Next user in database - } - #else - #Skip to next database. - } - #Main portion of script start - [reflection.assembly]::LoadWithPartialName("Microsoft.SqlServer.Smo") | out-null #ensure we have SQL SMO available - - foreach ($SQLsvr in get-content "C:\temp\Instances.txt") # read the instance source file to get instance names - { - $svr = new-object ("Microsoft.SqlServer.Management.Smo.Server") $SQLsvr - write-host "=================================================================================" - write-host "SQL Instance: " $svr.name - write-host "SQL Version:" $svr.VersionString - write-host "Edition:" $svr.Edition - write-host "Login Mode:" $svr.LoginMode - write-host "=================================================================================" - $SQLLogins = $svr.logins - foreach ($SQLLogin in $SQLLogins) - { - - write-host "Login : " $SQLLogin.name - write-host "Login Type : " $SQLLogin.LoginType - write-host "Created : " $SQLLogin.CreateDate - write-host "Default DB : " $SQLLogin.DefaultDatabase - Write-Host "Disabled : " $SQLLogin.IsDisabled - - $SQLRoles = $SQLLogin.ListMembers() - if ($SQLRoles) { - if ($SQLRoles = "SysAdmin"){ write-host "Server Role : " $SQLRoles -foregroundcolor "red"} - else { write-host "Server Role : " $SQLRoles - } } else {"Server Role : Public"} - - - If ( $SQLLogin.LoginType -eq "WindowsGroup" ) { #get individuals in any Windows domain groups - write-host "Group Members:" - try { - $ADGRoupMembers = get-adgroupmember $SQLLogin.name.Split("\")[1] -Recursive - foreach($member in $ADGRoupMembers){ - write-host " Account: " $member.name "("$member.SamAccountName")" - } - } - catch - { - #Sometimes there are 'ghost' groups left behind that are no longer in the domain, this highlights those still in SQL - write-host "Unable to locate group " $SQLLogin.name.Split("\")[1] " in the AD Domain" -foregroundcolor Red - } - } - #Check the permissions in the DBs the Login is linked to. - if ($SQLLogin.EnumDatabaseMappings()) - {write-host "Permissions:" - foreach ( $DB in $svr.Databases) - { - GetDBUserInfo($DB) - } # Next Database - } - Else - {write-host "None." - } - - write-host " ----------------------------------------------------------------------------" - } # Next Login - } # Next Server + # ======================================================================================================== + # + # NAME: WOX_Permissions.ps1 + # + # This script can be used to step through the various levels of security on each of your SQL Server instances. + # It is recommended to run this script with a domain account that can access the AD to collect group information. + # Thanks go to Greg Burns whose original post here: http://www.alaskasql.org/Blog/Post/35/Audit-All-SQL-User-Security-with-PowerShell + # inspired this evolution. + # + # This script returns: + # - The Server Name, Versionm, edition and Login mode + # - For each Login found on the SQL Server instance + # - Name + # - Type - SQL or Windows + # - Create date + # - Default DB + # - Disabled? + # - Server role (in Red if sysadmin) + # - If Type is a Windows AD group each member's name and Login + # - Database roles + # - Any explicitily granted permissions + # + # The script runs based on a list of server names located in c:\temp\instances.txt. + # Named instances can be listed as Hostname\instancename. + # The text file should contain one instance per line. + # All output is to the console (Formatting was easier). + # + # (C) 2016, WaterOx Consulting, Inc. + # See https://WaterOxConsulting.com/eula for the End User Licensing Agreement. + # + # ======================================================================================================== + + Function GetDBUserInfo($Dbase) + { + if ($dbase.status -eq "Normal") # ensures the DB is online before checking + {$users = $Dbase.users | where {$_.login -eq $SQLLogin.name} # Ignore the account running this as it is assumed to be an admin account on all servers + foreach ($u in $users) + { + if ($u) + { + $DBRoles = $u.enumroles() + foreach ($role in $DBRoles) { + if ($role -eq "db_owner") { + write-host $role "on"$Dbase.name -foregroundcolor "red" #if db_owner set text color to red + } + else { + write-host $role "on"$Dbase.name + } + } + #Get any explicitily granted permissions + foreach($perm in $Dbase.EnumObjectPermissions($u.Name)){ + write-host $perm.permissionstate $perm.permissiontype "on" $perm.objectname "in" $DBase.name } + } + } # Next user in database + } + #else + #Skip to next database. + } + #Main portion of script start + [reflection.assembly]::LoadWithPartialName("Microsoft.SqlServer.Smo") | out-null #ensure we have SQL SMO available + + foreach ($SQLsvr in get-content "C:\temp\Instances.txt") # read the instance source file to get instance names + { + $svr = new-object ("Microsoft.SqlServer.Management.Smo.Server") $SQLsvr + write-host "=================================================================================" + write-host "SQL Instance: " $svr.name + write-host "SQL Version:" $svr.VersionString + write-host "Edition:" $svr.Edition + write-host "Login Mode:" $svr.LoginMode + write-host "=================================================================================" + $SQLLogins = $svr.logins + foreach ($SQLLogin in $SQLLogins) + { + + write-host "Login : " $SQLLogin.name + write-host "Login Type : " $SQLLogin.LoginType + write-host "Created : " $SQLLogin.CreateDate + write-host "Default DB : " $SQLLogin.DefaultDatabase + Write-Host "Disabled : " $SQLLogin.IsDisabled + + $SQLRoles = $SQLLogin.ListMembers() + if ($SQLRoles) { + if ($SQLRoles = "SysAdmin"){ write-host "Server Role : " $SQLRoles -foregroundcolor "red"} + else { write-host "Server Role : " $SQLRoles + } } else {"Server Role : Public"} + + + If ( $SQLLogin.LoginType -eq "WindowsGroup" ) { #get individuals in any Windows domain groups + write-host "Group Members:" + try { + $ADGRoupMembers = get-adgroupmember $SQLLogin.name.Split("\")[1] -Recursive + foreach($member in $ADGRoupMembers){ + write-host " Account: " $member.name "("$member.SamAccountName")" + } + } + catch + { + #Sometimes there are 'ghost' groups left behind that are no longer in the domain, this highlights those still in SQL + write-host "Unable to locate group " $SQLLogin.name.Split("\")[1] " in the AD Domain" -foregroundcolor Red + } + } + #Check the permissions in the DBs the Login is linked to. + if ($SQLLogin.EnumDatabaseMappings()) + {write-host "Permissions:" + foreach ( $DB in $svr.Databases) + { + GetDBUserInfo($DB) + } # Next Database + } + Else + {write-host "None." + } + + write-host " ----------------------------------------------------------------------------" + } # Next Login + } # Next Server diff --git a/PowerShell/When-SQL-Serve-was-Rebooted.ps1 b/PowerShell/When-SQL-Serve-was-Rebooted.ps1 new file mode 100644 index 00000000..6a0eee94 --- /dev/null +++ b/PowerShell/When-SQL-Serve-was-Rebooted.ps1 @@ -0,0 +1,50 @@ +<# +.SYNOPSIS + When SQL Server was rebooted +.DESCRIPTION + Sets Extended Events Sessions to Auto-Start and starts it if it is not running +.EXAMPLE + ./When-SQL-Serve-was-Rebooted.ps1 +.LINK + Script posted over: + https://simplesqlserver.com/2016/06/01/powershell-when-were-my-servers-rebooted/ +.NOTES + Author: Steve Hood + Created Date: 2016-06-01 +#> + +Import-Module ActiveDirectory + +#either method works for getting a list of groups. You can type in all of your groups or make a query to find them all. +#$groups = "Test SQL Servers", "Prod SQL Servers 1", "Prod SQL Servers 2", "SQL Cluster Servers 1", "SQL Cluster Servers 2" + +$groups = Get-ADGroup -Filter {name -like "*SQL *"} | where-object {$_.distinguishedname -like "*OU=SUS Group*"} + +ForEach ($group in $groups) { + $computerlist = Get-ADGroupMember $group -Recursive | SELECT name + + #If there were any computers in the list, do this. It skips empty groups. + if ($computerlist) { + $computerlistcount = $computerlist.Count + + #It returns an object instead of an array if there was only one, so count would be null + if (!$computerlistcount) { + $computerlistcount = 1 + } + + Write-Host "" + Write-Host "$computerlistcount server(s) in" $group.name + } + + ForEach ($computer in $computerlist) { + try { + Get-WmiObject win32_operatingsystem -ComputerName $computer.name -ErrorAction Stop | select csname, @{LABEL='LastBootUpTime';EXPRESSION={$_.ConverttoDateTime($_.lastbootuptime)}} + } + catch { + #This logic is lacking. I don't care what error you got, just say you couldn't connect and we'll move on. + #For this script, it probably means the server is in the middle of a reboot + Write-Host "Could not connect to" $computer.name + Continue + } + } +} diff --git a/README.md b/README.md index 8d38b353..33fe4da9 100644 --- a/README.md +++ b/README.md @@ -3,64 +3,91 @@ [![stars badge]][stars] [![forks badge]][forks] [![issues badge]][issues] +[![contributors_badge]][contributors] + +[licence badge]:https://img.shields.io/badge/license-MIT-blue.svg +[stars badge]:https://img.shields.io/github/stars/ktaranov/sqlserver-kit.svg +[forks badge]:https://img.shields.io/github/forks/ktaranov/sqlserver-kit.svg +[issues badge]:https://img.shields.io/github/issues/ktaranov/sqlserver-kit.svg +[contributors_badge]:https://img.shields.io/github/contributors/ktaranov/sqlserver-kit.svg + +[licence]:https://github.com/ktaranov/sqlserver-kit/blob/master/LICENSE.md +[stars]:https://github.com/ktaranov/sqlserver-kit/stargazers +[forks]:https://github.com/ktaranov/sqlserver-kit/network +[issues]:https://github.com/ktaranov/sqlserver-kit/issues +[contributors]:https://github.com/ktaranov/sqlserver-kit/graphs/contributors Useful links, scripts, tools and best practice for Microsoft SQL Server Database -Headers: - - [Repo Folders and Fles](#repo-folders-and-files) + + +## Table of Contents + - [Repo Folders and Files](#repo-folders-and-files) - [SQL Server Web Resources](#sql-server-web-resources) - - [SQL Server Express direct download links](#sql-server-express-direct-download-links) - - [Microsoft Adventure Works Sample Databases download links](#microsoft-adventure-works-sample-databases-download-links) - - [Microsoft Transact-SQL Hints](#microsoft-transact-sql-hints) + - [SQL Server Blogs](#blogs) + - [Security Resources](#security) + - [SQL Server Free Videos](#free-videos) + - [Free Database Podcasts](#podcasts) + - [SQL Courses](#courses) + - [SQL Server Backwards Compatibility](#backwards-compatibility) + - [Social, Forum and Messenger SQL Server Groups](#sql-social) + - [SQL Server Open Source Projects](#open-source) + - [BIML Resources and Bloggers](#biml-resources-and-bloggers) - [PowerShell and SQL Server](#powershell-and-sql-server) - [TSQL Format Code](#tsql-format-code) - - [Free SQL Server Ebooks](#free-sql-server-ebooks) + - [SQL Server Test Data Generation](#sql-server-test-data-generation) + - [Free SQL Server and R ebooks](#free-ebooks) - [License](#license) ## Repo Folders and Files - - [SQL Server Data Types](/SQL Server Data Types.md) - - [SQL Server Edition](/SQL Server Edition.md) - - [SQL Server Name Convention and T-SQL Programming Style](/SQL Server Name Convention and T-SQL Programming Style.md) - - [SQL Server Licensing](/SQL Server Licensing.md) - - [SQL Server People](/SQL Server People.md 'Most Valuable SQL Server professionals') - - [SQL Server Trace Flag](/SQL Server Trace Flag.md 'Complete list - 300 Trace Flags') (Complete list - 300 trace flags) - - [SQL Server Version](/SQL Server Version.md 'List of all Microsoft SQL Sever versions') (Complete list - from SQL Server 1.0 to SQL Server 2016) + - [SQL Server Data Types](/SQL%20Server%20Data%20Types.md) + - [SQL Server Drivers](/SQL%20Server%20Drivers.md) + - [SQL Server Edition](/SQL%20Server%20Edition.md) + - [SQL Server Hints](/SQL%20Server%20Hints.md) + - [SQL Server Name Convention and T-SQL Programming Style](/SQL%20Server%20Name%20Convention%20and%20T-SQL%20Programming%20Style.md) + - [SQL Server Licensing](/SQL%20Server%20Licensing.md) + - [SQL Server People](/SQL%20Server%20People.md 'Most Valuable SQL Server professionals') + - [SQL Server Trace Flag](/SQL%20Server%20Trace%20Flag.md 'Complete list - 593 Trace Flags') (**Complete list - 593 trace flags**) + - [SQL Server Version](/SQL%20Server%20Version.md 'List of all Microsoft SQL Sever versions') (**Complete list - from SQL Server 1.0 to SQL Server 2019**) - [Articles](/Articles) - [CLR procedures](/CLR) - - [SQL#](/CLR/SQLsharp_SETUP.sql) free version - QUICKEST and EASIEST way to extending the power of T-SQL with C# - [SplitterB_CLR](/CLR/SplitterB_CLR.sql) + - [Extended Events](/Extended_Events) - [Known Errors](/Errors) + - [SQL Server Sample Databases and Datasets](/Sample_Databases) + - [Scripts](/Scripts) + - **Awesome SQL Server Diagnostic Information Queries** (by Glenn Alan Berry) + - [Azure SQL Database Diagnostic Information Queries](/Scripts/Azure%20SQL%20Database%20Diagnostic%20Information%20Queries.sql) + - [SQL Server 2019 Diagnostic Information Queries](/Scripts/SQL%20Server%202019%20Diagnostic%20Information%20Queries.sql) + - [SQL Server 2017 Diagnostic Information Queries](/Scripts/SQL%20Server%202017%20Diagnostic%20Information%20Queries.sql) + - [SQL Server 2016 Diagnostic Information Queries](/Scripts/SQL%20Server%202016%20Diagnostic%20Information%20Queries.sql) + - [SQL Server 2014 Diagnostic Information Queries](Scripts/SQL%20Server%202014%20Diagnostic%20Information%20Queries.sql) + - [SQL Server 2012 Diagnostic Information Queries](/Scripts/SQL%20Server%202012%20Diagnostic%20Information%20Queries.sql) + - [SQL Server 2008 R2 Diagnostic Information Queries](/Scripts/SQL%20Server%202008%20R2%20Diagnostic%20Information%20Queries.sql) + - [SQL Server 2008 Diagnostic Information Queries](/Scripts/SQL%20Server%202008%20Diagnostic%20Information%20Queries.sql) + - [SQL Server 2005 Diagnostic Information Queries](/Scripts/SQL%20Server%202005%20Diagnostic%20Information%20Queries.sql) + - [Table count alternative](/Scripts/Table%20Count%20alternative.sql) (by Jes Schultz Borland) + - [Foreign Key batch rename](/Scripts/Foreign%20Key%20batch%20rename.sql) (by Wes Henriksen) + - [Count character matches](/Scripts/Count%20character%20matches.sql) + - and many others... - [Solution](/Solution) - [dbWarden](/Solution/dbWarden) a free SQL Server Monitoring Package (by Stevie Rounds and Michael Rounds) - [Base line Collector script](/Solution/BaselineCollector) (by Robert Virag) - - [Ola Maintenance Solution](/Solution/Ola_Maintenance_Solution) (by Ola Hallengren) - - [SQLQueryStress](/Solution/SQLQueryStress) (by Adam Machanic) - [SysJobHistory](/Solution/SysJobHistory) (by David Wentzel) - [SSMS](/SSMS) - - [SSMS addons](/SSMS/SSMS_Addins.md) (28 useful free and paid SSMS Addins) + - [SSMS addins](/SSMS/SSMS_Addins.md) (**36 useful free and paid SSMS Addins**) - [SSMS Snippets](/SSMS/SSMS_Snippets) - - [SSMS Shortcuts](/SSMS/SSMS_Shortcuts.md) - - [Scripts](/Scripts) - - **Awesome SQL Server Diagnostic Information Queries** (by Glenn Alan Berry) - - [SQL Server 2016 Diagnostic Information Queries](/Scripts/SQL Server 2016 Diagnostic Information Queries.sql) - - [SQL Server 2014 Diagnostic Information Queries](/Scripts/SQL Server 2014 Diagnostic Information Queries.sql) - - [SQL Server 2012 Diagnostic Information Queries](/Scripts/SQL Server 2012 Diagnostic Information Queries.sql) - - [SQL Server 2008 R2 Diagnostic Information Queries](/Scripts/SQL Server 2008 R2 Diagnostic Information Queries.sql) - - [SQL Server 2008 Diagnostic Information Queries](/Scripts/SQL Server 2008 Diagnostic Information Queries.sql) - - [Table count alternative](/Scripts/Table Count alternative.sql) (by Jes Schultz Borland) - - [Foreign Key batch rename](/Scripts/Foreign Key batch rename.sql) (by Wes Henriksen) - - [Count character matches](/Scripts/Count character matches.sql) - - and many others... + - [SSMS Shortcuts](/SSMS/SSMS_Shortcuts.md) (**More than 300 Shortcuts**) + - [SSMS Tips](/SSMS/SSMS_Tips.md) (**Complete guide about hidden gems of SSMS**) - [Stored Procedure](/Stored_Procedure) - - [sp_DBPermissions](/Stored_Procedure/sp_DBPermissions.sql) (by Kenneth Fisher) - - [sp_SrvPermissions](/Stored_Procedure/sp_SrvPermissions.sql) (by Kenneth Fisher) - - [sp_RestoreGene](/Stored_Procedure/sp_RestoreGene.sql) (by Paul Brewer) - - [usp_who5](/Stored_Procedure/usp_who5.sql) (by Sean Smith) - - [usp_String_Search](/Stored_Procedure/usp_String_Search.sql) (by Sean Smith) - - [usp_BulkUpload](/Stored_Procedure/usp_BulkUpload.sql) - - [usp_TableUnpivot](/Stored_Procedure/usp_TableUnpivot.sql) - - [usp_SSIS_ScriptEnvironment](/Stored_Procedure/usp_SSIS_ScriptEnvironment.sql) + - [sp_DBPermissions](/Stored_Procedure/dbo.sp_DBPermissions.sql) (by Kenneth Fisher) + - [sp_SrvPermissions](/Stored_Procedure/dbo.sp_SrvPermissions.sql) (by Kenneth Fisher) + - [sp_RestoreGene](/Stored_Procedure/dbo.sp_RestoreGene.sql) (by Paul Brewer) + - [usp_who5](/Stored_Procedure/dbo.usp_who5.sql) (by Sean Smith) + - [usp_String_Search](/Stored_Procedure/dbo.usp_String_Search.sql) (by Sean Smith) + - [usp_BulkUpload](/Stored_Procedure/dbo.usp_BulkUpload.sql) + - [usp_TableUnpivot](/Stored_Procedure/dbo.usp_TableUnpivot.sql) - and many others... - [User Defined Function](/User_Defined_Function) - [udf_parseJSON](/User_Defined_Function/udf_parseJSON.sql) @@ -69,14 +96,18 @@ Headers: - [udf_SplitStringByDelimiter](/User_Defined_Function/udf_SplitStringByDelimiter.sql) - [udf_Tally](/User_Defined_Function/udf_Tally.sql) - and many others... - - [Utilities](/Utilities) (complete list of 124 SQL Server paid and free Utilities and Tools) + - [Utilities](/Utilities) (**Complete list of 276 SQL Server paid and free Utilities and Tools**) + +**[⬆ back to top](#table-of-contents)** ## SQL Server Web Resources - - Blogs + - Blogs + - [Brent Ozar feedly reading list](https://github.com/BrentOzar/sqlblogs) - [SQL Central Blog Scripts](http://www.sqlservercentral.com/Scripts/) - [SQL Central Blog Articles](http://www.sqlservercentral.com/Articles/) - [SQL Central Blog Stairways](http://www.sqlservercentral.com/stairway/) + - [DatabaseWeekly](http://www.databaseweekly.com/) - [MSSQLTips](https://www.mssqltips.com/get-free-sql-server-tips/) - [BRENT OZAR](https://www.brentozar.com/) scripts, videos and articles - [Simple-talk Articles](https://www.simple-talk.com/) @@ -87,6 +118,9 @@ Headers: - [Weblogs SQLTeam Blogs](http://weblogs.sqlteam.com/) - [SQLMag](http://sqlmag.com/) - [SQLShack](http://www.sqlshack.com/) + - [LessThanDot SQL Server Blog](http://blogs.lessthandot.com/index.php/category/datamgmt/dbprogramming/mssqlserver/) + - [SQLBlog](http://sqlblog.com) + - [DatabseJournal SQL Server Blog](http://www.databasejournal.com/features/mssql/) - [SQLPass](http://www.sqlpass.org/Home.aspx) - [Vertabelo Blog](http://www.vertabelo.com/blog) - [Midnightdba Blog](http://www.midnightdba.com/Jen/) @@ -101,7 +135,38 @@ Headers: - [Curated SQL](http://curatedsql.com/) - [Blog do Ezequiel](https://blogs.msdn.microsoft.com/blogdoezequiel/) - [SQLHA Blog](http://sqlha.com/blog/) - - Free Videos + - [SQLSecurity Blog](http://www.sqlsecurity.com/home) + - [SQL.ru SQL Server](http://www.sql.ru/blogs/t-sql) (Russian) + - [C# Corner SQL Server Articles](http://www.c-sharpcorner.com/technologies/sql-server) + - [TechTarget Blog](http://searchsqlserver.techtarget.com/) + - [Toad SQL Server Blog](http://www.toadworld.com/platforms/sql-server/b/weblog) + - [SQL-Articles](http://sql-articles.com/articles/) + - [DallasDBAs Blog](http://dallasdbas.com/blog/) + - [UpSearch Blog](https://upsearch.com/blog/) + - [ProData Blog](http://blogs.prodata.ie/) + - [Red9 SQL Server Performance Blog](https://red9.com/blog/) + - [DallasDBAs.com Blog](http://dallasdbas.com/blog/) + - [SQLBI Blog](http://www.sqlbi.com) + - [RDX Blog](http://blog.rdx.com) + - [Codingsight](http://codingsight.com/) + - [Solomon Rutzky's SQL Quantum Leap Blog](https://SqlQuantumLeap.com/) + - Security (great thanks to [Troy Hunt](https://www.troyhunt.com/troys-ultimate-list-of-security-links/)) + - SQL injection + - [sqlmap](http://sqlmap.org/) – The tool for mounting SQL injection attacks tests against a running site + - [Drupal 7 SQL injection flaw of 2014](https://www.drupal.org/PSA-2014-003) – great example of how impactful it still is (patch it within 7 hours or you’re owned) + - [Ethical Hacking: SQL Injection](http://www.pluralsight.com/courses/ethical-hacking-sql-injection) – If you really want to go deep, here’s five and a half hours worth of Pluralsight content + - Exploit databases and breach coverage + - [seclists.org](http://seclists.org) – Heaps of exploits consolidated from various bug tracking lists + - [Exploit Database](https://www.exploit-db.com/) – Very comprehensive list of vulnerabilities + - [PunkSPIDER](https://www.punkspider.org/) – Lots of vulnerabilities of all kinds all over the web (about 90M sites scanned with over 3M vulns at present) + - [Data Loss DB](http://datalossdb.org/) – Good list of breaches including stats on number of records compromised + - [Information is Beautiful: World’s Biggest Data Breaches](http://www.informationisbeautiful.net/visualizations/worlds-biggest-data-breaches-hacks/) – Fantastic visualisation of incidents that give a great indication of scale + - [Biggest data breaches in history](https://www.comparitech.com/blog/information-security/biggest-data-breaches-in-history/) (by Dave Albaugh) + - [Microsoft SQL Server Permissions Posters](https://github.com/Microsoft/sql-server-samples/tree/master/samples/features/security/permissions-posters) + - [Module Signing Info](https://modulesigning.info/) - Info and resources related to module signing (i.e. Certificates, Asymmetric Keys, `ADD SIGNATURE`, etc) in T-SQL and SQLCLR + - Free Videos + - [Youtube Brent Ozar](https://www.youtube.com/user/BrentOzar/videos) + - [SQLPASSTV videos](https://www.youtube.com/user/SQLPASSTV/videos) - [IDERA Resource Center](https://www.idera.com/resourcecentral) - [MSSQLTips SQL Server Webcasts and Videos](https://www.mssqltips.com/sql-server-webcasts/) - [SQL Server Videos](http://www.sqlservervideos.com/) @@ -109,7 +174,18 @@ Headers: - [Veeam Learn Microsoft SQL Server](http://go.veeam.com/learn-microsoft-sql-server-free-video-tutorial-course.html) - [MidnightDBA ITBookWorm Video](http://midnightdba.itbookworm.com/) - [SQL Server Hangouts](https://www.youtube.com/playlist?list=PLvcGRPk71pmRi2UZHKfyruJKu_zHZ0ROc) (by Boris Hristov, Cathrine Wilhelmsen) - - Free Database Podcasts + - [Youtube russianVC](https://www.youtube.com/channel/UC0UA5gKnOq9TM1RNvMIArwg) (Russian) + - [Youtube Redgate Videos](https://www.youtube.com/redgate) + - [User Group.tv](http://usergroup.tv/) (by Shawn Weisfeld) + - [SQLPass Virtual Chapters](http://www.sqlpass.org/passchapters/virtualchapters.aspx) + - [Youtube SQLpassion](https://www.youtube.com/channel/UCkrUQVPrv36Musorn0K4KoA) + - [SQLBits Video](https://sqlbits.com/) + - [Business Intelligence Videos](http://www.bidn.com/Videos/Videos) + - [Pragmatic Works Free Training Webinars](http://pragmaticworks.com/Training/FreeTrainingWebinars) + - [Youtube Pragmatic Works Video](https://www.youtube.com/user/PragmaticWorks) (by Devin Knight and Manuel Quintana) + - [MVP: Data Platform](https://channel9.msdn.com/Blogs/MVP-Data-Platform) + - [Build 2018 conference](http://sqlservercode.blogspot.ru/2018/05/azure-sql-data-warehouse-azure-sql.html) + - Free Database Podcasts - [SQL Server Radio](http://www.sqlserverradio.com/) (by Guy Glantser and Matan Yungman) - [SQL Data Partners](http://sqldatapartners.com/podcast/) (by Carlos L Chacon, César Oviedo and Adrian Miranda) - [Away from the Keyboard](http://awayfromthekeyboard.com/) (by Cecil Phillip and Richie Rump) @@ -118,112 +194,242 @@ Headers: - [NET Rocks!](http://www.dotnetrocks.com/) (by Richard Campbell and Carl Franklin) - [SQL Down Under Podcast](http://www.sqldownunder.com/Podcasts) (by Greg Low) - [Free sql server video tutorials for beginners](http://csharp-video-tutorials.blogspot.ru/p/free-sql-server-video-tutorials-for.html) (by PRAGIM Technologies) - - Courses - - [MVA SQL Server Courses](https://mva.microsoft.com/product-training/sql-server) - - [Lynda Courses](http://www.lynda.com/SQL-Server-training-tutorials/456-0.html) - - [Veeam Free Courses](https://go.veeam.com/microsoft-sql-series-webinars.html) - - [SQLSkills Trainings](https://www.sqlskills.com/sql-server-training/online-training/) - - [Brent Ozar Team Trainings](https://learnfrom.brentozar.com/) - - [Pluralsight Courses](https://www.pluralsight.com/search?q=sql+server&categories=all) - - SQL Server Backwards Compatibility - - [2014 Backwards Compatibility](http://msdn.microsoft.com/en-us/library/cc707787.aspx) - - [2012 Backwards Compatibility](http://msdn.microsoft.com/en-us/library/cc707787(v=sql.110).aspx) - - [2008 R2 Backwards Compatibility](http://msdn.microsoft.com/en-us/library/cc707787(v=sql.105).aspx) - - [2008 Backwards Compatibility](http://msdn.microsoft.com/en-us/library/cc707787(v=sql.100).aspx) + - [Midnight DBA Podcast](http://midnightdba.itbookworm.com/Show) (by Sean and Jen McCown) + - [Dear SQL DBA](https://www.littlekendra.com/dearsqldba/) (by Kendra Little) + - [GroupBy.org - Group By is a free online event for the community, by the community](https://groupby.org/) (by Brent Ozar team) + - [DevopsCafe](http://devopscafe.org/) (by John Willis and Damon Edwards) + - [SQLPlayer](http://sqlplayer.net/) (by Kamil Nowinski and Damian Widera) + - [Data Driven](http://datadriven.tv/) (by Frank La Vigne and Andy Leonard) + - [SQL Down Under Podcast](https://www.sqldownunder.com) (by Greg Low) + - [SQL Undercover Podcast](https://sqlundercover.com/category/podcast/) (by David Fowler and Adrian Buckman) + - Courses + - Free + - [Learn SQL Server by solving problems](https://sqlworkbooks.com/courses-overview/) (by Little Kendra) + - [Codecademy Learn SQL](https://www.codecademy.com/learn/learn-sql) + - [Codecademy SQL: Table Transformation](https://www.codecademy.com/learn/sql-table-transformation) + - [Codecademy SQL: Analyzing Business Metrics](https://www.codecademy.com/learn/sql-analyzing-business-metrics) + - [MVA SQL Server Courses](https://mva.microsoft.com/product-training/sql-server) + - [How to Think Like the SQL Server Engine](https://learnfrom.brentozar.com/courses/how-to-think-like-the-engine-an-introduction-to-sql-server-internals/) + - [Number and Date Tables](https://www.brentozar.com/archive/2016/01/video-free-training-of-the-week-number-and-date-tables/) + - [Free SQL Tutorials](http://www.guru99.com/sql.html) + - [OpenedX Microsoft Courses](https://openedx.microsoft.com/) + - [SQLBolt - Learn SQL with simple, interactive exercises](https://sqlbolt.com/) + - [SQL Tutorial](https://sqlzoo.net) + - [HackerRank.com - SQL interactive exercises and many others languages](https://www.hackerrank.com/domains/sql) + - [SQL-EX.ru - Practical skills of SQL language](http://www.sql-ex.ru) (Russian, English) + - Paid + - [Lynda Courses](http://www.lynda.com/SQL-Server-training-tutorials/456-0.html) + - [Veeam Free Courses](https://go.veeam.com/microsoft-sql-series-webinars.html) + - [SQLSkills Trainings](https://www.sqlskills.com/sql-server-training/online-training/) + - [Brent Ozar Team Trainings](https://learnfrom.brentozar.com/) + - [Pluralsight Courses](https://www.pluralsight.com/search?q=sql+server&categories=all) + - [SolidQ Classes](https://training.solidq.com/classes/) + - [JOOQ SQL Masterclass](http://www.jooq.org/training/) + - [Learn SQL Server High Availability & Disaster Recovery](https://learnsqlserverhadr.com/) (by Edwin M Sarmiento) + - [Madeira Data Solutions Academy](http://madeira-data-solutions.teachable.com/) + - [SQLpassion Online Academy](http://www.sqlpassion.at/online-training/index.html) (by Klaus Aschenbrenner) + - SQL Server Backwards Compatibility + - [2017 Backwards Compatibility](https://docs.microsoft.com/en-us/sql/database-engine/sql-server-database-engine-backward-compatibility) + - [2016 Backwards Compatibility](https://docs.microsoft.com/en-us/sql/database-engine/sql-server-database-engine-backward-compatibility) + - [2014 Backwards Compatibility](https://msdn.microsoft.com/en-us/library/cc280407(v=sql.120).aspx) + - [2012 Backwards Compatibility](https://msdn.microsoft.com/en-us/library/cc707787(v=sql.110).aspx) + - [2008 R2 Backwards Compatibility](https://msdn.microsoft.com/en-us/library/cc707787(v=sql.105).aspx) + - [2008 Backwards Compatibility](https://msdn.microsoft.com/en-us/library/cc707787(v=sql.100).aspx) - [2005 Backwards Compatibility](http://technet.microsoft.com/en-us/library/ms143532(v=sql.90).aspx) + - SQL Server System Views Map + - [SQL Server 2008 System Views Map](https://www.microsoft.com/en-us/download/details.aspx?id=9301) + - [SQL Server 2012 System Views Map](https://www.microsoft.com/en-us/download/details.aspx?id=39083) + - Microsoft Troubleshooting and security guides + - [Solving Connectivity errors to SQL Server](https://support.microsoft.com/en-us/help/4009936/solving-connectivity-errors-to-sql-server) + - [Troubleshooting connectivity issues with Microsoft Azure SQL Database](https://support.microsoft.com/en-in/help/10085/troubleshooting-connectivity-issues-with-microsoft-azure-sql-database) + - [Troubleshooting Always On Issues](https://support.microsoft.com/en-us/help/10179/troubleshooting-alwayson-issues) + - [Guide for enhancing privacy and addressing GDPR requirements with the Microsoft SQL platform](https://aka.ms/gdprsqlwhitepaper) + - Social, Forum and Messenger SQL Server Groups + - [SQL Server help and feedback](https://docs.microsoft.com/en-us/sql/sql-server/sql-server-get-help?view=sql-server-2017) + - [SQLServerCentral Forum](http://www.sqlservercentral.com/Forums/) (more than 10^6 People) + - [Slack #sqlhelp](https://sqlcommunity.slack.com/messages/sqlhelp/) (more than 900 People) + - [Slack #firstresponderkit](https://sqlcommunity.slack.com/messages/firstresponderkit/) (more then 90 People) + - [Twitter #sqlhelp](https://twitter.com/hashtag/sqlhelp) (more than 500 People) + - [SQL.ru SQL Server Forum](http://www.sql.ru/forum/microsoft-sql-server) (more than 10^5 People, Russian) + - [VK.com #sqlcom](https://vk.com/sqlcom) (more than 3600 People, Russian) + - [SQL Server User Group Meetings](https://www.mssqltips.com/sql-server-user-groups/) + - [Russian SQL Server User Group](https://www.facebook.com/groups/144858492215825/) (900 People, Russian) + - [SQLcom.ru telegram channel](https://t.me/sqlcom) (609 People, Russian) + - Open Source Projects + - [Brent Ozar SQL Server First Responder Kit](https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit) (Github) + - [SQL Server Ola Hallengren's Maintenance Solution](https://github.com/olahallengren/sql-server-maintenance-solution) (by Ola Hallengren) (Github) + - [Standby restore script output for Ola Hallengren's Maintenance Solution](https://github.com/jzagelbaum/OlaHallengrenRestoreScript) (by jzagelbaum) (Github) + - [SqlQueryStress - SQL query stress simulator for SQL Server](https://github.com/ErikEJ/SqlQueryStress) (by Adam Machanic and Erik Ejlskov Jensen) + - [Statistic Parser](https://github.com/Jorriss/StatisticsParser) (by Richie Rump) (Github) + - [SQL Generator](https://github.com/Jorriss/sqlgenerator) (by Richie Rump) (Github) + - [Columnstore Indexes Scripts Library](https://github.com/NikoNeugebauer/CISL) (by Niko Neugebauer) (Github) + - [MOSL - Memory Optimized Script Library](https://github.com/NikoNeugebauer/MOSL) (by Niko Neugebauer) (Github) + - [mssql-docker - Official Microsoft repository for SQL Server in Docker resources](https://github.com/ktaranov/mssql-docker) (by Microsoft) (Github) + - [SQLCover - TSQL code coverage tool for SQL Server 2008+](https://github.com/GoEddie/SQLCover) (by Ed Elliott) (Github) + - [tSQLt testing framework for Microsoft SQL Server](https://github.com/tSQLt-org/tSQLt) (Github) + - [T-SQL SimMetrics string matching algorithms](https://github.com/GuerrillaAnalytics/similarity) (Github) + - [Azure Blob Storage Backup](https://github.com/bornsql/azureblobstoragesync) (by Randolph West) (Github) + - [StackExchange.DataExplorer - free tool for executing SQL queries against Stack Exchange databases](https://github.com/StackExchange/StackExchange.DataExplorer) (Github) + - [Machine Learning Templates with SQL Server 2016 R Services](https://github.com/Microsoft/SQL-Server-R-Services-Samples) (by Sheri Gilley) (Github) + - [Campaign Optimization - Predicting How and When to Contact Leads Implemented on SQL Server 2016 R Services](https://github.com/Microsoft/r-server-campaign-optimization) (by Sheri Gilley) (Github) + - [SQL Server Performance Dashboards - contains all Microsoft based reports, custom built reports, modified reports and the TSQL setup](http://sqldashboards.codeplex.com/) (by Arun Sirpal) + - [tigertoolbox - Repository for Tiger team for "as-is" solutions and tools/scripts that the team publishes for SQL Server](https://github.com/Microsoft/tigertoolbox) (Github) + - [SQL Server FineBuild - makes it easy for anyone to produce a best-practice installation and configuration of SQL Server](https://sqlserverfinebuild.codeplex.com/) (by Brian Davis) + - [Pssdiag/Sqldiag Manager - is a graphic interface that provides customization capabilities to collect data for SQL Server using sqldiag collector engine](https://github.com/Microsoft/DiagManager) (Github) + - [sql-xplat-cli - Repository for the new SQL cross-platform command line tools](https://github.com/Microsoft/sql-xplat-cli) (by Microsoft) + - [dbfs - A tool for mounting MS SQL Server DMVs using FUSE](https://github.com/Microsoft/dbfs) (by Microsoft) + - [Opserver - Stack Exchange's Monitoring System](https://github.com/opserver/Opserver) (by Stack Exchange) + - [Bosum - Time Series Alerting Framework](https://github.com/bosun-monitor/bosun) (by Stack Exchange) + - [BismNormalizer - is a free and open-source tool to manage Microsoft Analysis Services tabular models](https://github.com/christianwade/BismNormalizer) (by Christian Wade) + - [DbSharp - is a DAL Generator](https://www.codeproject.com/Articles/776811/DbSharp-DAL-generator-tool) (by Higty) + - [YourSqlDba - Database maintenance solution as a single SQL script](https://github.com/pelsql/YourSqlDba) (by Maurice Pelchat) + - [OpenQueryStore - collection of scripts that add Query Store like functionality to pre-SQL Server 2016 Instance](https://github.com/OpenQueryStore/OpenQueryStore) + - [ssis-dashboard - HTML5 SQL Server Integration Services Dashboard](https://github.com/yorek/ssis-dashboard) (by Davide Mauri) + - [SQL Server Regex - run regular expressions in SQL Server](https://github.com/DevNambi/sql-server-regex) (by Dev Nambi) + - [Binary Formatter - format binary files (e.g. DLL / CER / PVK) into hex bytes string for SQL script](https://github.com/SqlQuantumLeap/BinaryFormatter) (by Solomon Rutzky / Sql Quantum Leap) + - [ExtendedTSQLCollector - Custom collector types to extend and simplify the features offered by the built-in SQL Server Data Collector and read data from Extended Events and/or queries](https://github.com/spaghettidba/ExtendedTSQLCollector) (by Gianluca Sartori) + - [XESmartTarget - configurable target for SQL Server Extended Events](https://github.com/spaghettidba/XESmartTarget) (by Gianluca Sartori) + - [Schemazen - script and create SQL Server objects quickly](https://github.com/sethreno/schemazen) (by Seth Reno) + - [soddi - StackOverflow Data Dump Importer](https://github.com/BrentOzarULTD/soddi) (by Brent Ozar team) + - [Automatically fix high VLF counts in SQL Server 2012+](https://github.com/tboggiano/autofix-vlfs) (by Tracy Boggiano) + - [splittinglargefiles - Process for splitting large files in a filegroup that has grown out of control.](https://github.com/tboggiano/splittinglargefiles) (by Tracy Boggiano) + - [olamaintconfigtables - This are tables and jobs that can use to run Ola's scripts as T-SQL Jobs and run on Linux](https://github.com/tboggiano/olamaintconfigtables) (by Tracy Boggiano) + - [SQL Undercover Toolbox - A collection of cool and useful tools, procedures and scripts for the discerning DBA ](https://github.com/SQLUndercover/UndercoverToolbox) (by SQL Undercover) + - [dba-database - Database containing DBA helper code and open source software](https://github.com/amtwo/dba-database) (by Andy Mallon) + - [SQLServerSpaceAnalysis PowerBI](https://github.com/SQLJana/SQLServerSpaceAnalysis) (by Jana Sattainathan) + - [SQL Server Telegram Bot](https://github.com/ionflux/mssql-telegram-bot/) + - [ZabbixMSSQL - Zabbix Template and tools for Microsoft SQL Server](https://github.com/dreik/ZabbixMSSQL) (by Sergey Kolesnik) + - [AGLatency - analyze AG log block movement latency between replicas and create report accordingly](https://github.com/suyouquan/AGLatency) (by Simon Su) + - [SQLSetupTools - FixMissingMSI, Product Browser, SQL Registry Viewer](https://github.com/suyouquan/SQLSetupTools) (by Simon Su) + - [tsql-parser - Library Written in C# For Parsing SQL Server T-SQL Scripts in .Net](https://github.com/bruce-dunwiddie/tsql-parser) (by Bruce Dunwiddie) + - [tsqllint - Configurable linting for TSQL](https://github.com/tsqllint/tsqllint) (by tsqllint) + - [Rezoom.SQL - F# ORM for SQL databases](https://github.com/rspeele/Rezoom.SQL) (by Robert Peele) + - [SQLtoExcel - Exports the output of one or more TSQL script queries to Excel](https://github.com/BeginTry/SQLtoExcel) (by Dave Mason) + - [Analysis Services - Analysis Services samples and community projects](https://github.com/Microsoft/Analysis-Services) (by Microsoft) + - [ms-sql-express-replication - replication library written for MS SQL Sever Express edition](https://github.com/janhalama/ms-sql-express-replication) (by Jan Halama) + - [SQL query builder, written in C#](https://github.com/sqlkata/querybuilder) + - [php-crud-api - Single file PHP script that adds a REST API to a SQL database](https://github.com/mevdschee/php-crud-api) (by Maurits van der Schee) - Other - - [SQL Server Management Studio](https://msdn.microsoft.com/en-us/library/mt238290.aspx) installation download link - - Best backup and index maintenance solution [Ola Maintenance Solution](https://ola.hallengren.com/) - - [SQL# CLR functions](http://www.sqlsharp.com/) (by Sql Quantum Leap) + - [sp_whoisactive](http://whoisactive.com/) (by Adam Machanic) + - [SQL# SQLCLR functions](https://sqlsharp.com/) (by Sql Quantum Lift) + - [SQL Server Latch Classes Library](https://www.sqlskills.com/help/latches/) (by Paul S. Randal) + - [SQL Server Wait Types Library](https://www.sqlskills.com/help/waits/) (by Paul S. Randal) + - [Waitopedia - is a comprehensive resource of information about SQL Server waits](https://www.spotlightessentials.com/waitopedia) (by Spotlight Essentials) + - [SQL Server wait types](https://www.sqlshack.com/sql-server-wait-types/) (by SQLShack.com) - [SSIS Performance Benchmarks](http://ssisperformance.com/) - - [Statistic Parser](https://github.com/Jorriss/StatisticsParser) (by Richie Rump) - [Using Excel to parse Set Statistics IO output](http://vickyharp.com/2012/03/using-excel-to-parse-set-statistics-io-output/) (by Vicky Harp) - - [SQL Generator](https://github.com/Jorriss/sqlgenerator) (by Richie Rump) - - [Columnstore Indexes Scripts Library](https://github.com/NikoNeugebauer/CISL) (by Niko Neugebauer) - [Stackoverflow SQL Server](http://stackoverflow.com/questions/tagged/sql-server) - [DBA Stackexchange SQL Server](http://dba.stackexchange.com/questions/tagged/sql-server) - - [BIMLScript Learn resource](http://www.bimlscript.com/) - - [SQL Server Connection Strings](http://www.connectionstrings.com/sql-server/) + - [Server Fault - is a question and answer site for system and network administrators](https://serverfault.com/) + - [SQL Server Connection Strings](https://www.connectionstrings.com/sql-server/) + - [SQL Connection String Generator for .NET](https://aireforge.com/Tools/ConnectionStringGenerator) - [SQL Injection Cheat Sheet](https://www.netsparker.com/blog/web-security/sql-injection-cheat-sheet/) (by Ferruh Mavituna) - [RSS Most Recent SQL Server KBs](https://support.microsoft.com/en-us/rss?rssid=1044) - [Stackoverflow SQL Anti Patterns](http://stackoverflow.com/questions/346659/what-are-the-most-common-sql-anti-patterns) - - [SQL Server Latch Classes Library](https://www.sqlskills.com/help/latches/) (by Paul S. Randal) - [Azure Speed](http://www.azurespeed.com/) (by Blair Chen) - - -## SQL Server Express direct download links -Original post written by Scott Hanselman: http://www.hanselman.com/blog/DownloadSQLServerExpress.aspx
-Official Microsoft SQL Server Express page: https://www.microsoft.com/en-us/server-cloud/products/sql-server-editions/sql-server-express.aspx - - -### [Download SQL Server 2014 Express](http://www.microsoft.com/en-us/download/details.aspx?id=42299) -You likely just want SQL Server 2014 Express with Tools. This download includes SQL Management Studio: - - [SQL Server 2014 Express x64](http://download.microsoft.com/download/E/A/E/EAE6F7FC-767A-4038-A954-49B8B05D04EB/ExpressAndTools%2064BIT/SQLEXPRWT_x64_ENU.exe) - - [SQL Server 2014 Express x86](http://download.microsoft.com/download/E/A/E/EAE6F7FC-767A-4038-A954-49B8B05D04EB/ExpressAndTools%2032BIT/SQLEXPRWT_x86_ENU.exe) - -Here's just SQL Server 2014 Management Studio: - - [SQL Management Studio x64](http://download.microsoft.com/download/E/A/E/EAE6F7FC-767A-4038-A954-49B8B05D04EB/MgmtStudio%2064BIT/SQLManagementStudio_x64_ENU.exe) - - [SQL Management Studio x86](http://download.microsoft.com/download/E/A/E/EAE6F7FC-767A-4038-A954-49B8B05D04EB/MgmtStudio%2032BIT/SQLManagementStudio_x86_ENU.exe) - -SQL Server 2014 Express with Advanced Services: - - [Advanced Services x64](http://download.microsoft.com/download/E/A/E/EAE6F7FC-767A-4038-A954-49B8B05D04EB/ExpressAdv%2064BIT/SQLEXPRADV_x64_ENU.exe) - - [Advanced Services x86](http://download.microsoft.com/download/E/A/E/EAE6F7FC-767A-4038-A954-49B8B05D04EB/ExpressAdv%2032BIT/SQLEXPRADV_x86_ENU.exe) - - -### [Download SQL Server 2012 Express](http://www.microsoft.com/en-us/download/details.aspx?id=29062) -You likely just want SQL Server 2012 Express with Tools. This download includes SQL Management Studio: - - [SQL Server 2012 Express x64](http://download.microsoft.com/download/8/D/D/8DD7BDBA-CEF7-4D8E-8C16-D9F69527F909/ENU/x64/SQLEXPRWT_x64_ENU.exe) - -Here's just SQL Server 2012 Management Studio: - - [SQL Management Studio x64](http://download.microsoft.com/download/8/D/D/8DD7BDBA-CEF7-4D8E-8C16-D9F69527F909/ENU/x64/SQLManagementStudio_x64_ENU.exe) - - [SQL Management Studio x86](http://download.microsoft.com/download/8/D/D/8DD7BDBA-CEF7-4D8E-8C16-D9F69527F909/ENU/x86/SQLManagementStudio_x86_ENU.exe) - - -### [Download SQL Server 2008 Express R2 SP2](http://www.microsoft.com/en-us/download/details.aspx?id=30438) -You likely just want SQL Server 2008 Express with Tools. This download includes SQL Management Studio: - - [SQL Server 2008 Express x64](http://download.microsoft.com/download/0/4/B/04BE03CD-EAF3-4797-9D8D-2E08E316C998/SQLEXPRWT_x64_ENU.exe) - - [SQL Server 2008 Express x86](http://download.microsoft.com/download/0/4/B/04BE03CD-EAF3-4797-9D8D-2E08E316C998/SQLEXPRWT_x86_ENU.exe) - -Here's just SQL Server 2008 Management Studio: - - [SQL Management Studio x64](http://download.microsoft.com/download/0/4/B/04BE03CD-EAF3-4797-9D8D-2E08E316C998/SQLManagementStudio_x64_ENU.exe) - - [SQL Management Studio x86](http://download.microsoft.com/download/0/4/B/04BE03CD-EAF3-4797-9D8D-2E08E316C998/SQLManagementStudio_x86_ENU.exe) - - -### [Download SQL Server 2005 Express](https://www.microsoft.com/en-us/download/details.aspx?id=21844) - - -## Microsoft Adventure Works Sample Databases download links - - [AdventureWorks Sample Databases and Scripts for SQL Server 2016 CTP3](https://www.microsoft.com/en-us/download/details.aspx?id=49502) - - [Microsoft SQL Server Community Projects & Samples](http://sqlserversamples.codeplex.com/) - - [Adventure Works 2014 Sample Databases](https://msftdbprodsamples.codeplex.com/releases/view/125550) - - [Adventure Works 2012 Sample Databases](http://msftdbprodsamples.codeplex.com/releases/view/55330) - - [Microsoft SQL Server 2008 R2 SR1 Sample Databases](https://sqlserversamples.codeplex.com/releases/view/72278) - - -## [Microsoft Transact-SQL Hints](https://msdn.microsoft.com/en-us/library/ms187713.aspx) - - [Transact-SQL Join Hints](https://msdn.microsoft.com/en-us/library/ms173815.aspx) - - [Transact-SQL Table Hints](https://msdn.microsoft.com/en-us/library/ms187373.aspx) - - [Transact-SQL Query Hints](https://msdn.microsoft.com/en-us/library/ms181714.aspx) + - [SQLFiddle](http://sqlfiddle.com) + - [Experts-Exchange.com MS SQL Server Topics](https://www.experts-exchange.com/topics/ms-sql-server/) + - [Paste The Plan - share query plans quickly and easily](https://www.brentozar.com/pastetheplan/) (by Brent Ozar Team) + - [StackExchange DataExplorer Query On line](http://data.stackexchange.com/stackoverflow/query/new) + - [Dell Databases Wiki](http://en.community.dell.com/techcenter/storage/w/wiki/5018.sc-series-technical-documents) (by Doug Bernhardt) + - [SqlServerSearcher - open source C# tool for searching SQL Server objects](https://github.com/CoderAllan/SqlServerSearcher) (by Allan Simonsen) + - [DbUp is a .NET library that helps you to deploy changes to SQL Server databases](https://github.com/DbUp/DbUp) + - [SQL Server monitor - manages sql server performance](https://github.com/unruledboy/SQLMonitor) (by Wilson Chen) + - [How's My Plan? - .SQLPLAN analyzer](http://www.howsmyplan.com/) (by Daniel Janik) + - [Minion Backup - The new standard in SQL Server backups](http://minionware.net/backup/) (by Minionware) + - [Minion CheckDB - completes the MinionWare maintenance and backups suite](http://minionware.net/checkdb/) (by Minionware) + - [Minion Reindex - Index maintenance that is fully automated](http://minionware.net/reindex/) (by Minionware) + - [OrcaMDF - C# parser for MDF files](https://github.com/improvedk/OrcaMDF) (by Mark S. Rasmussen) + - [Microsoft SQL Server Zabbix templates](https://share.zabbix.com/databases/microsoft-sql-server) + - [Telegraf SQL Server Plugin](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/sqlserver) (by influxdata) + - [SDU Tools - pure TSQL functions Toolkit](https://sqldownunder.com/sdu-tools/) (by SQLDownUnder) + - [Microsoft SQL Server Publications](https://www.microsoft.com/en-us/research/search/?q=sql+server&content-type=publications) + - [SQL Server Feedback](https://feedback.azure.com/forums/908035-sql-server) + - [Docs Overview SQL Tools](https://docs.microsoft.com/en-us/sql/tools/overview-sql-tools) + - [SQL ConstantCare®: clear, personal advice for your SQL Server](https://www.brentozar.com/sql-constantcare/) (by Brent Ozar) + - [The SQL Server Execution Plan Reference](https://sqlserverfast.com/epr/) (by Hugo Kornelis) + - [EC2 Instance Calculator](https://ec2instances.info/) + - [AWS Calculator](https://calculator.aws/#/) + - [Azure Instance Calculator](http://www.azureinstances.info/) + - [PowerBI Premium Calculator](https://powerbi.microsoft.com/en-us/calculator/) + - [Nuodb Oracle and SQL Server Calculator ](https://www.nuodb.com/product/license-cost-calculator) + - [Github SQL Trending](https://github.com/trending/sql) + - [SQLCallStackResolver - Utility to resolve SQL Server callstacks to their correct symbolic form](https://github.com/arvindshmicrosoft/SQLCallStackResolver) (by Arvind Shyamsundar) + +**[⬆ back to top](#table-of-contents)** + + +## BIML Resources and Bloggers +BIML - [Business Intelligence Markup Language](https://varigence.com/biml) + +BIML Resources +- [BimlScript.com](http://bimlscript.com/) +- [Varigence](https://varigence.com/Biml) +- [Biml Forum at Varigence](https://varigence.com/Forums?forumName=Biml) +- [SQLServerCentral.com](http://www.sqlservercentral.com/search/?q=Biml) +- [Stairway to Biml](http://www.sqlservercentral.com/stairway/100550/) +- [Biml User Group at LinkedIn](https://www.linkedin.com/groups/4640985) +- [Building Blocks of Biml (Pluralsight course by Stacia Misner Varga)](https://app.pluralsight.com/library/courses/building-blocks-biml/table-of-contents) +- [Biml-tagged posts on this blog](http://sqlblog.com/blogs/andy_leonard/archive/tags/BIML/default.aspx) + +BIML Bloggers +- [Ben Weissman](https://www.solisyon.de/biml-blog-de/) +- [Bill Fellows](http://billfellows.blogspot.com/search/label/Biml) +- [Boris Hristov](http://borishristov.com/biml/) +- [Brian Bønk](http://www.bonk.dk/biml/) +- [Cathrine Wilhelmsen](http://www.cathrinewilhelmsen.net/biml/) +- [Datachix: Julie Smith and Audrey Hammonds](http://datachix.com/) +- [David Stein](http://www.made2mentor.com/category/biml/) +- [Davide Mauri](http://sqlblog.com/blogs/davide_mauri/archive/tags/BIML/default.aspx) +- [Erik Hudzik](http://www.anexinet.com/blog/author/ehudzik/) +- [Hennie de Nooijer](http://bifuture.blogspot.com/search/label/BIML) +- [John Welch](http://agilebi.com/jwelch/tag/biml/) +- [Joost van Rossum](http://microsoft-ssis.blogspot.com/search/label/BIML) +- [Koen Verbeeck](http://blogs.lessthandot.com/index.php/tag/biml/) +- [Marco Schreuder](http://blog.in2bi.eu/biml/) +- [Martin Andersson](http://www.frysdisken.net/) +- [Meagan Longoria](https://datasavvy.wordpress.com/category/biml/) +- [Nicholas Sorrell](http://sorrell.github.io/) +- [Paul Te Braak](https://paultebraak.wordpress.com/tag/biml/) +- [Peter Schott](http://schottsql.blogspot.com/search/label/BIML) +- [Reeves Smith](https://reevessmith.wordpress.com/category/biml/) +- [Roelant Vos](http://roelantvos.com/blog/?tag=biml) +- [Rui Custódio](http://www.bi4all.pt/taxonomy/term/75) +- [Samuel Vanga](http://samuelvanga.com/category/biml/) +- [Stephen Leach](http://www.imgroup.com/author/stephen-leach/) +- [Tim Mitchell](https://www.timmitchell.net/post/tag/biml/) +- [Warwick Rudd](http://www.sqlmastersconsulting.com.au/SQL-Server-Blog/PID/1675/mcat/1682/evl/0/nsw/t/EDNSearch/Biml) + +**[⬆ back to top](#table-of-contents)** ## PowerShell and SQL Server - [SQL Server & Windows Documentation Using Windows PowerShell](https://sqlpowerdoc.codeplex.com/) (by Kendal Vandyke) - - [TSQL Code Smells Finder](https://tsqlsmells.codeplex.com/) (by Dave Ballantyne) - [Stairway to SQL PowerShell](http://www.sqlservercentral.com/stairway/91327/) (by Ben Miller) - [SQL Server Health Check Script with Powershell](http://www.codeproject.com/Tips/848661/SQL-Server-Health-Check-Script-with-Powershell) (by Atul Kapoor) - - [Universal SQL Server Installation Scripts](https://github.com/ktaranov/Universal-SQL-Installation-Scripts) (by Prakash Heda) - - [Powershell SQL Server Performance Health Check ](https://github.com/SpeedySQL/HealthCheck) (by Omid Afzalalghom) - - [Performance Analysis of Logs (PAL) Tool](http://pal.codeplex.com/) (by svenhau and mikelag) - - [PSCI - Powershell Continuous Integration](https://github.com/ObjectivityBSS/PSCI) (by Objectivity Bespoke Software Specialists) - - [SQLTranscriptase - SQL Server Documentation in Powershell](https://github.com/vijaybandi/SQLTranscriptase) (by Vijay Bandi) - - [SQLPSX](https://github.com/MikeShepard/SQLPSX) (by Mike Shepard) - - [PowerShell dbatools for SQL Server](https://github.com/ctrlbold/dbatools) (by Chrissy LeMaire) + - [Universal SQL Server Installation Scripts](https://github.com/ktaranov/Universal-SQL-Installation-Scripts) (by Prakash Heda) (Github) + - [Powershell SQL Server Performance Health Check](https://github.com/SpeedySQL/HealthCheck) (by Omid Afzalalghom) (Github) + - [PSCI - Powershell Continuous Integration](https://github.com/ObjectivityBSS/PSCI) (by Objectivity Bespoke Software Specialists) (Github) + - [SQLTranscriptase - SQL Server Documentation in Powershell](https://github.com/vijaybandi/SQLTranscriptase) (by Vijay Bandi) (Github) + - [SQL Server PowerShell Extensions (SQLPSX)](https://github.com/MikeShepard/SQLPSX) (by Mike Shepard) (Github) + - [PowerShell dbatools for SQL Server](https://github.com/ctrlbold/dbatools) (by Chrissy LeMaire) (Github) - [Create a Monitoring Server for SQL Server with PowerShell](https://www.simple-talk.com/sql/database-administration/create-a-monitoring-server-for-sql-server-with-powershell/) (by Laerte Junior) - [PowerShell SQLPass articles and video](http://powershell.sqlpass.org/default.aspx) - [PowerShell Blog NetNerds](https://blog.netnerds.net/) - [QS Config](http://www.sqlhammer.com/qs-config/) (by Derik Hammer) - [Idera 89 Free SQL Server PowerShell Scripts](https://www.idera.com/productssolutions/freetools/sqlpowershellscripts) - - [Performance Analysis of Logs (PAL) Tool](https://pal.codeplex.com/) + - [Performance Analysis of Logs (PAL) Tool](https://github.com/clinthuffman/PAL) (by Clint Huffman) + - [Powershell SQL Server Library (PSSQLLib)](https://github.com/sanderstad/PSSQLLib) (by Sander Stad) (Github) + - [Trello Board: Powershell and SQL Client Tools](https://trello.com/b/NEerYXUU/powershell-sql-client-tools-sqlps-ssms) + - [PowerUpSQL: A PowerShell Toolkit for Attacking SQL Server](https://github.com/NetSPI/PowerUpSQL) (Github) + - [PowerShell DBA Reports](https://github.com/SQLDBAWithABeard/dbareports) (Github) + - [PowerShell sqlCheck](https://bitbucket.org/yardbirdsax/sqlcheck/src) (Bitbucket) (by Josh Feierman) + - [ReportingServicesTools - Reporting Services Powershell Tools](https://github.com/Microsoft/ReportingServicesTools) (by Microsoft) + - [Powershell xSQLServer module contains DSC resources for deployment and configuration of SQL Server](https://github.com/PowerShell/xSQLServer) (Github by Microsoft) + - [Export-DMVInformation - Export the resuts from Glenn Berry's DMV queries directly to Excel](https://github.com/sanderstad/Export-DMVInformation/) (Github) (by Sander Stad) + - [Export-QueryToSQLTable - Export one or more query results run against one or more instances/databases to table](https://github.com/SQLJana/Export-QueryToSQLTable) (by Jana Sattainathan) (Github) + +**[⬆ back to top](#table-of-contents)** ## TSQL Format Code @@ -236,45 +442,85 @@ Here's just SQL Server 2008 Management Studio: - http://www.ssmstoolspack.com/ - http://www.devart.com/dbforge/sql/sqlcomplete/ - http://www.sql-format.com/ + - http://extras.sqlservercentral.com/prettifier/prettifier.aspx + +**[⬆ back to top](#table-of-contents)** ## SQL Server Test Data Generation - https://www.simple-talk.com/sql/t-sql-programming/generating-test-data-in-tsql/ - - http://www.yandataellan.com/ - https://github.com/benkeen/generatedata - https://sourceforge.net/projects/dbmonster/ - https://sourceforge.net/projects/spawner/ - http://databene.org/databene-benerator - - http://stackoverflow.com/questions/591892/tools-for-generating-mock-data + - [Tools for Generating Mock Data?](https://stackoverflow.com/q/591892) + - https://mockaroo.com + +**[⬆ back to top](#table-of-contents)** + ## Free SQL Server and R ebooks - - [Avesome Red Gate ebooks](http://www.red-gate.com/community/books/) + +SQL Server: + - [Awesome Red Gate ebooks](http://www.red-gate.com/community/books/) + - SQL Developers + - [Defensive Database Programming](http://assets.red-gate.com/community/books/defensive-database-programming.pdf) (by Alex Kuznetsov) + - [Inside the SQL Server Query Optimizer](http://assets.red-gate.com/community/books/inside-the-sql-server-query-optimizer.pdf) (by Benjamin Nevarez) + - [SQL Server Execution Plans, 2nd Edition](http://assets.red-gate.com/community/books/sql-server-execution-plans-book.zip) (by Grant Fritchey) + - [SQL Server Source Control Basics](http://www.red-gate.com/products/sql-development/sql-source-control/entrypage/sql-server-source-control-basics) (by Robert Sheldon, Rob Richardson & Tony Davis) + - [The Art of XSD](http://assets.red-gate.com/community/books/the-art-of-xsd.pdf) (by Jacob Sebastian) + - [The Redgate Guide to SQL Server Team-based Development](http://assets.red-gate.com/products/sql-development/sql-source-control/entrypage/assets/RG_Guide_to_SQL_Server_Dev.pdf) (by Phil Factor, Grant Fritchey, Alex Kuznetsov, and Mladen Prajdić) + - [XML Stairway](https://assets.red-gate.com/simple-talk/stairway-to-xml.pdf) + - [119 SQL Code Smells](http://assets.red-gate.com/community/books/sql-code-smells.pdf) + - SQL DBA + - [SQL Server Internals: In-Memory OLTP](http://www.red-gate.com/library/sql-server-internals-in-memory-oltp) (by Kalen Delaney) + - [Fundamentals Of SQL Server 2012 Replication](http://assets.red-gate.com/community/books/fundamentals-of-sql-server-2012-replication.pdf) (by Sebastian Meine) + - [Tribal SQL](http://www.red-gate.com/library/tribal-sql) + - [SQL Server Transaction Log Management](http://assets.red-gate.com/offerings/transaction-log-management.pdf) (by Tony Davis and Gail Shaw) + - [The Art of SQL Server FILESTREAM](http://assets.red-gate.com/community/books/art-of-ss-filestream.pdf) (by Jacob Sebastian and Sven Aelterman) + - [SQL Server Concurrency: Locking, Blocking and Row Versioning](http://www.red-gate.com/library/sql-server-concurrency-locking-blocking-and-row-versioning) (by Kalen Delaney) + - [SQL Server Backup and Restore](http://assets.red-gate.com/community/books/sql-server-backup-and-restore.pdf) (by Shawn McGehee) + - [Troubleshooting SQL Server: A Guide for the Accidental DBA](http://assets.red-gate.com/products/dba/assets/Accidental_DBA_EBook.zip) (by Jonathan Kehayias and Ted Krueger ) + - [SQL Server Hardware](http://assets.red-gate.com/community/books/sql-server-hardware-ebook.pdf) (by Glen Berry) - [Microsoft huge collection](https://blogs.msdn.microsoft.com/mssmallbiz/2013/06/18/huge-collection-of-free-microsoft-ebooks-for-you-including-office-office-365-sharepoint-sql-server-system-center-visual-studio-web-development-windows-windows-azure-and-windows-server/) - [Microsoft large collection](https://blogs.msdn.microsoft.com/mssmallbiz/2012/07/27/large-collection-of-free-microsoft-ebooks-for-you-including-sharepoint-visual-studio-windows-phone-windows-8-office-365-office-2010-sql-server-2012-azure-and-more/) + - [Largest FREE Microsoft eBook Giveaway!](https://blogs.msdn.microsoft.com/mssmallbiz/2017/07/11/largest-free-microsoft-ebook-giveaway-im-giving-away-millions-of-free-microsoft-ebooks-again-including-windows-10-office-365-office-2016-power-bi-azure-windows-8-1-office-2013-sharepo/) - [Microsoft MVA Free ebooks](https://mva.microsoft.com/ebooks) - [OnlineVideoLectures ebooks](http://onlinevideolecture.com/ebooks/?subject=SQL-Server) - [Brent Ozar ebooks](http://www.brentozar.com/first-aid/free-database-books-pdfs-download/) - - [E-books Directory](http://www.e-booksdirectory.com/listing.php?category=569) + - [E-books SQL Server Directory](http://www.e-booksdirectory.com/listing.php?category=569) - [TOAD SQL Server ebooks](https://www.toadworld.com/platforms/sql-server/b/weblog/archive/2013/06/21/huge-collection-of-free-microsoft-sql-server-ebooks) - [Syncfusion Techportal](http://syncfusion.com/resources/techportal) - [Modern Storage Strategies for SQL Server](http://www.actualtech.io/gg-modern-storage/) + - [Migrating SQL Server Databases to Azure](https://blogs.msdn.microsoft.com/microsoft_press/2016/05/11/free-ebook-microsoft-azure-essentials-migrating-sql-server-databases-to-azure/) + - [SQL Sentry Free eBooks](https://www.sqlsentry.com/sql-server-books) + - [Microsoft Cloud Security for Enterprise Architects (PDF)](http://download.microsoft.com/download/6/d/f/6dfd7614-bbcf-4572-a871-e446b8cf5d79/msft_cloud_architecture_security.pdf) + - [Brent Ozar SQL Server Setup Checklist eBook](http://u.brentozar.com/eBook_SQL_Server_Setup_Checklist.pdf) + - [Introducing Microsoft SQL Server 2016](https://info.microsoft.com/Introducing-SQL-Server-2016-eBook.html) + - [Giving away millions of free Microsoft Ebooks](https://blogs.msdn.microsoft.com/mssmallbiz/2016/07/10/free-thats-right-im-giving-away-millions-of-free-microsoft-ebooks-again-including-windows-10-office-365-office-2016-power-bi-azure-windows-8-1-office-2013-sharepoint-2016-sha/) (by Eric Ligman) + - [Free Phil Factor eBook: Confessions of an IT Manager](https://www.simple-talk.com/opinion/opinion-pieces/free-phil-factor-ebook-confessions-of-an-it-manager/) (by Phil Factor) + - [Power BI from Rookie to Rock Star book](http://radacad.com/download-free-power-bi-book-pdf-format) (by Reza Rad) + - [Online Book: Analytics with Power BI and R](http://radacad.com/online-book-analytics-with-power-bi-and-r) (by Leila Etaati) + - [Architecture of a Database System](http://db.cs.berkeley.edu/papers/fntdb07-architecture.pdf) (by Joseph M. Hellerstein, Michael Stonebraker and James Hamilton) + - [Query Optimization with SentryOne Plan Explorer](https://info.sentryone.com/ebook-query-optimization-plan-explorer) + - [Troubleshooting SQL Server Performance](https://info.sentryone.com/ebook-troubleshooting-sql-server-performance) (by Kevin Kline) + +R: + - [BookDown - Write HTML, PDF, ePub, and Kindle books with R Markdown](https://bookdown.org) + - [FreeComputerBooks R EBooks](http://freecomputerbooks.com/langRBooks.html) - [Effective Graphs with Microsoft R Open](http://blog.revolutionanalytics.com/2016/05/e-book-effective-graphs.html) + - [Little Book of R for Time Series](http://a-little-book-of-r-for-time-series.readthedocs.io/en/latest/index.html) (by Avril Coghlan) + - [Little Book of R for Biomedical Statistics](http://a-little-book-of-r-for-biomedical-statistics.readthedocs.io/en/latest/index.html) (by Avril Coghlan) + - [Little Book of R for Multivariate Analysis](http://little-book-of-r-for-multivariate-analysis.readthedocs.io/en/latest/index.html) (by Avril Coghlan) + - [Text Mining with R](http://tidytextmining.com/) (by Julia Silge and David Robinson) + - [An Introduction to Statistical Learning with Applications in R](http://www-bcf.usc.edu/~gareth/ISL/) (by Gareth James, Daniela Witten, Trevor Hastie and Robert Tibshirani) + +**[⬆ back to top](#table-of-contents)** ## License -[MIT](/LICENSE.md) +[MIT](/LICENSE) -If some procedures or scripts are restricted due to **ELUA** (or we can't find original author), please email or add issue - we remove/update it immediately. +If some procedures or scripts are restricted due to **ELUA** (or we can not find original author), please email us or add issue - we remove/update it immediately. Thanks for understanding and patience. - - -[licence badge]:https://img.shields.io/badge/license-MIT-blue.svg -[stars badge]:https://img.shields.io/github/stars/ktaranov/sqlserver-kit.svg -[forks badge]:https://img.shields.io/github/forks/ktaranov/sqlserver-kit.svg -[issues badge]:https://img.shields.io/github/issues/ktaranov/sqlserver-kit.svg - -[licence]:https://github.com/ktaranov/sqlserver-kit/blob/master/LICENSE.md -[stars]:https://github.com/ktaranov/sqlserver-kit/stargazers -[forks]:https://github.com/ktaranov/sqlserver-kit/network -[issues]:https://github.com/ktaranov/sqlserver-kit/issues diff --git a/SQL Server DBCC List.md b/SQL Server DBCC List.md index ac1a0304..c3933df7 100644 --- a/SQL Server DBCC List.md +++ b/SQL Server DBCC List.md @@ -3,19 +3,25 @@ Source links: - [MSDN DBCC (Transact-SQL)](https://msdn.microsoft.com/en-us/library/ms188796.aspx) - [SQL SERVER – DBCC commands List – documented and undocumented](http://blog.sqlauthority.com/2007/05/15/sql-server-dbcc-commands-list-documented-and-undocumented/) (by Pinal Dave) + - [Microsoft SQL Server DBCC Commands list](http://www.sqlservice.se/microsoft-sql-server-dbcc-commands/) (by Steinar Andersen) + - [Concept and basics of DBCC Commands in SQL Server](https://www.sqlshack.com/concept-and-basics-of-dbcc-commands-in-sql-server/) (by Mustafa EL-Masry) -To learn about all the DBCC commands run following script in query analyzer. -DBCC TRACEON(2520) -DBCC HELP ('?') +To learn about all the DBCC commands run following script in query analyzer: +``` +DBCC TRACEON(2520); +DBCC HELP ('?'); GO +``` -To learn about syntax of an individual DBCC command run following script in query analyzer. -DBCC HELP() +To learn about syntax of an individual DBCC command run following script in query analyzer: +``` +DBCC HELP(); GO +``` Following is the list of all the DBCC commands and their syntax. List contains documented and undocumented DBCC commands. - +``` DBCC activecursors [(spid)] DBCC addextendedproc (function_name, dll_name) @@ -24,8 +30,7 @@ DBCC addinstance (objectname, instancename) DBCC adduserobject (name) -DBCC auditevent (eventclass, eventsubclass, success, loginname -, rolename, dbusername, loginid) +DBCC auditevent (eventclass, eventsubclass, success, loginname, rolename, dbusername, loginid) DBCC autopilot (typeid, dbid, tabid, indid, pages [,flag]) @@ -41,32 +46,31 @@ DBCC cachestats DBCC callfulltext -DBCC checkalloc [('database_name'[, NOINDEX | REPAIR])] [WITH NO_INFOMSGS[, ALL_ERRORMSGS][, ESTIMATEONLY]] +DBCC CHECKALLOC [('database_name'[, NOINDEX | REPAIR])] [WITH NO_INFOMSGS[, ALL_ERRORMSGS][, ESTIMATEONLY]] https://msdn.microsoft.com/en-us/library/ms188422.aspx -DBCC checkcatalog [('database_name')] [WITH NO_INFOMSGS] +DBCC CHECKCATALOG [('database_name')] [WITH NO_INFOMSGS] https://msdn.microsoft.com/en-us/library/ms186720.aspx -DBCC checkconstraints [( 'tab_name' | tab_id | 'constraint_name' | constraint_id )] [WITH ALL_CONSTRAINTS | ALL_ERRORMSGS] +DBCC CHECKCONSTRAINTS [( 'tab_name' | tab_id | 'constraint_name' | constraint_id )] [WITH ALL_CONSTRAINTS | ALL_ERRORMSGS] https://msdn.microsoft.com/en-us/library/ms189496.aspx -DBCC checkdb [('database_name'[, NOINDEX | REPAIR])] [WITH NO_INFOMSGS[, ALL_ERRORMSGS] [, PHYSICAL_ONLY][, ESTIMATEONLY][,DBCC TABLOCK] +DBCC CHECKDB [('database_name'[, NOINDEX | REPAIR])] [WITH NO_INFOMSGS[, ALL_ERRORMSGS] [, PHYSICAL_ONLY][, ESTIMATEONLY][,DBCC TABLOCK] https://msdn.microsoft.com/en-us/library/ms176064.aspx DBCC checkdbts (dbid, newTimestamp)] -DBCC checkfilegroup [( [ {'filegroup_name' | filegroup_id} ] [, NOINDEX] )] [WITH NO_INFOMSGS -[, ALL_ERRORMSGS][, PHYSICAL_ONLY][, ESTIMATEONLY][, TABLOCK]] +DBCC checkfilegroup [( [ {'filegroup_name' | filegroup_id} ] [, NOINDEX] )] [WITH NO_INFOMSGS[, ALL_ERRORMSGS][, PHYSICAL_ONLY][, ESTIMATEONLY][, TABLOCK]] DBCC checkident ('table_name'[, { NORESEED | {RESEED [, new_reseed_value] } } ] ) DBCC checkprimaryfile ( {'FileName'} [, opt={0|1|2|3} ]) -DBCC checktable ('table_name'[, {NOINDEX | index_id | REPAIR}]) -[WITH NO_INFOMSGS[, ALL_ERRORMSGS] [, PHYSICAL_ONLY][, ESTIMATEONLY][, TABLOCK]] +DBCC CHECKTABLE ('table_name'[, {NOINDEX | index_id | REPAIR}]) [WITH NO_INFOMSGS[, ALL_ERRORMSGS] [, PHYSICAL_ONLY][, ESTIMATEONLY][, TABLOCK]] https://msdn.microsoft.com/en-us/library/ms174338.aspx DBCC cleantable ('database_name'|database_id, 'table_name'|table_id,[batch_size]) DBCC cacheprofile [( {actionid} [, bucketid]) -DBCC clearspacecaches ('database_name'|database_id, -'table_name'|table_id, 'index_name'|index_id) +DBCC clearspacecaches ('database_name'|database_id, 'table_name'|table_id, 'index_name'|index_id) + +DBCC CLONEDATABASE https://support.microsoft.com/en-us/kb/3177838 DBCC collectstats (on | off) @@ -102,8 +106,7 @@ DBCC dropextendedproc (function_name) DBCC dropuserobject ('object_name') -DBCC dumptrigger ({'BREAK', {0 | 1}} | 'DISPLAY' | {'SET', exception_number} -| {'CLEAR', exception_number}) +DBCC dumptrigger ({'BREAK', {0 | 1}} | 'DISPLAY' | {'SET', exception_number} | {'CLEAR', exception_number}) DBCC errorlog @@ -122,7 +125,7 @@ DBCC flushprocindb (database) DBCC free dll_name (FREE) -DBCC freeproccache +DBCC FREEPROCCACHE [ ( { plan_handle | sql_handle | pool_name } ) ] [ WITH NO_INFOMSGS ] https://www.brentozar.com/archive/2016/02/when-shrinking-tempdb-just-wont-shrink/ https://msdn.microsoft.com/en-us/library/ms174283.aspx dbcc freeze_io (db) @@ -139,7 +142,7 @@ dbcc ind ( { 'dbname' | dbid }, { 'objname' | objid }, { indid | 0 | -1 | -2 } ) DBCC indexdefrag ({dbid | dbname | 0}, {tableid | tablename}, {indid |indname}) -DBCC inputbuffer (spid) +DBCC INPUTBUFFER ( session_id [ , request_id ]) [WITH NO_INFOMSGS ] https://msdn.microsoft.com/en-us/library/ms187730.aspx DBCC invalidate_textptr (textptr) @@ -156,8 +159,7 @@ DBCC lock ([{'DUMPTABLE' | 'DUMPSTATS' | 'RESETSTATS' | 'HASH'}] | DBCC lockobjectschema ('object_name') -DBCC log ([dbid[,{0|1|2|3|4}[,['lsn','[0x]x:y:z']|['numrecs',num]|['xdesid','x:y'] |['extent','x:y']|['pageid','x:y']|['objid',{x,'y'}]|['logrecs', -{'lop'|op}…]|['output',x,['filename','x']]…]]]) +DBCC log ([dbid[,{0|1|2|3|4}[,['lsn','[0x]x:y:z']|['numrecs',num]|['xdesid','x:y'] |['extent','x:y']|['pageid','x:y']|['objid',{x,'y'}]|['logrecs', {'lop'|op}…]|['output',x,['filename','x']]…]]]) DBCC loginfo [({'database_name' | dbid})] @@ -190,18 +192,15 @@ DBCC perflog DBCC perfmon -DBCC pglinkage (dbid, startfile, startpg, number, printopt={0|1|2} -, targetfile, targetpg, order={1|0}) +DBCC pglinkage (dbid, startfile, startpg, number, printopt={0|1|2}, targetfile, targetpg, order={1|0}) DBCC pintable (database_id, table_id) -DBCC procbuf [({'dbname' | dbid}[, {'objname' | objid} -[, nbufs[, printopt = { 0 | 1 } ]]] )] +DBCC procbuf [({'dbname' | dbid}[, {'objname' | objid}[, nbufs[, printopt = { 0 | 1 } ]]] )] DBCC proccache -DBCC prtipage (dbid, objid, indexid [, [{{level, 0} -| {filenum, pagenum}}] [,printopt]]) +DBCC prtipage (dbid, objid, indexid [, [{{level, 0} | {filenum, pagenum}}] [,printopt]]) DBCC pss [(uid[, spid[, printopt = { 1 | 0 }]] )] @@ -247,13 +246,11 @@ DBCC showweights DBCC shrinkdatabase ({dbid | 'dbname'}, [freespace_percentage [, {NOTRUNCATE | TRUNCATEONLY}]]) -DBCC shrinkfile ({fileid | 'filename'}, [compress_size -[, {NOTRUNCATE | TRUNCATEONLY | EMPTYFILE}]]) +DBCC shrinkfile ({fileid | 'filename'}, [compress_size[, {NOTRUNCATE | TRUNCATEONLY | EMPTYFILE}]]) DBCC sqlmgrstats -DBCC sqlperf (LOGSPACE)({IOSTATS | LRUSTATS | NETSTATS | RASTATS [, CLEAR]} -| {THREADS} | {LOGSPACE}) +DBCC SQLPERF (LOGSPACE)({IOSTATS | LRUSTATS | NETSTATS | RASTATS [, CLEAR]} | {THREADS} | {LOGSPACE}) https://docs.microsoft.com/en-us/sql/t-sql/database-console-commands/dbcc-sqlperf-transact-sql DBCC stackdump [( {uid[, spid[, ecid]} | {threadId, 'THREADID'}] )] @@ -261,7 +258,7 @@ DBCC tab ( dbid, objid ) DBCC tape_control {'query' | 'release'}[,('.tape')] -DBCC tec [( uid[, spid[, ecid]] )] +DBCC TEC [( uid[, spid[, ecid]] )] http://sqlonice.com/context-in-perspective-6-taking-sessions-to-task/ DBCC textall [({'database_name'|database_id}[, 'FULL' | FAST] )] @@ -273,7 +270,7 @@ DBCC traceoff [( tracenum [, tracenum … ] )] DBCC traceon [( tracenum [, tracenum … ] )] -DBCC tracestatus (trace# [, …trace#]) +DBCC TRACESTATUS ( [ [ trace# [ ,...n ] ] [ , ] [ -1 ] ] ) [ WITH NO_INFOMSGS ] https://msdn.microsoft.com/en-us/library/ms187809.aspx DBCC unpintable (dbid, table_id) @@ -289,3 +286,5 @@ DBCC useroptions DBCC wakeup (spid) DBCC writepage ({ dbid, 'dbname' }, fileid, pageid, offset, length, data) +DBCC OPTIMIZER_WHATIF ({property/cost_number | property_name} [, {integer_value | string_value} ]) http://www.sqlhammer.com/dbcc-optimizer_whatif-spoofing-production-hardware +``` diff --git a/SQL Server Data Types.md b/SQL Server Data Types.md index 2435ad29..7ce21e14 100644 --- a/SQL Server Data Types.md +++ b/SQL Server Data Types.md @@ -1,17 +1,37 @@ # Microsoft SQL Server Data Types -Complete list of all Microsoft SQL Server Data Types +Detailed information about Microsoft SQL Server Data Types and its mapping to another databases and program languages analog. + +## Table of Contents: + - [Source link](#source-link) + - [Data Type Precedence (Transact-SQL)](#data-type-precedence) + - [Data Type Synonyms (Transact-SQL)](#data-type-synonyms) + - [Precision, Scale, and Length (Transact-SQL)](#precision-scale-and-length) + - [SQL Server, SSIS and Biml Data Types](#sql-server-ssis-and-biml-data-types) + - [SQL Server Data Types Length](#sql-server-data-types-length) + - [SQL Server to MySQL, Oracle, PostgreSQL and SQLite Data Type Mapping](#sql-server-to-mysql-oracle-postgresql-sqlite) + ## Source link - - [MSDN Data Types](https://msdn.microsoft.com/en-us/library/ms187752.aspx) - - [MSDN Data Type Precedence](https://msdn.microsoft.com/en-us/library/ms190309.aspx) - - [MSDN Data Type Synonyms](https://msdn.microsoft.com/en-us/library/ms177566.aspx) - - [MSDN Precision, Scale, and Length](https://msdn.microsoft.com/en-us/library/ms190476.aspx) - - [Integration Services Data Types](https://msdn.microsoft.com/en-us/library/ms141036.aspx) - - [DbType Enumeration](https://msdn.microsoft.com/en-us/library/System.Data.DbType.aspx) + + - [Data Types (Transact-SQL)](https://docs.microsoft.com/en-us/sql/t-sql/data-types/data-types-transact-sql) + - [Data Type Precedence (Transact-SQL)](https://docs.microsoft.com/en-us/sql/t-sql/data-types/data-type-precedence-transact-sql) + - [Data Type Synonyms (Transact-SQL)](https://docs.microsoft.com/en-us/sql/t-sql/data-types/data-type-synonyms-transact-sql) + - [Precision, Scale, and Length](https://docs.microsoft.com/en-us/sql/t-sql/data-types/precision-scale-and-length-transact-sql) + - [Integration Services Data Types](https://docs.microsoft.com/en-us/sql/integration-services/data-flow/integration-services-data-types) + - [DbType Enumeration](https://docs.microsoft.com/en-us/dotnet/api/system.data.dbtype) - [SQL Server, SSIS and Biml Data Types](http://www.cathrinewilhelmsen.net/2014/05/27/sql-server-ssis-and-biml-data-types/) - - [SQL Server Integration Services, Data Type Mapping ](http://milambda.blogspot.ru/2014/02/sql-server-integration-services-data.html) + - [SQL Server Integration Services, Data Type Mapping](http://milambda.blogspot.ru/2014/02/sql-server-integration-services-data.html) + - [SQL Server Data Type Conversion](https://msdn.microsoft.com/en-us/library/ms191530.aspx) + - [SQL Server to MySQL Data Type Conversion](https://convertdb.com/mysql_mssql_mapping) + - [SQL Server to Oracle Data Type Conversion](https://docs.oracle.com/cd/B19306_01/gateways.102/b14270/apa.htm) + - [SQL Server to PostgreSQL Data Type Conversion](http://www.sqlines.com/sql-server-to-postgresql) + - [SQL Server to SQLite Data Type Conversion](http://ericsink.com/mssql_mobile/data_types.html) + +**[⬆ back to top](#table-of-contents)** + ## Data Type Precedence (Transact-SQL) + When an operator combines two expressions of different data types, the rules for data type precedence specify that the data type with the lower precedence is converted to the data type with the higher precedence. If the conversion is not a supported implicit conversion, an error is returned. When both operand expressions have the same data type, the result of the operation has that data type. @@ -47,38 +67,44 @@ SQL Server uses the following precedence order for data types: 28. varbinary (including varbinary(max) ) 29. binary (lowest) +**[⬆ back to top](#table-of-contents)** + ## Data Type Synonyms (Transact-SQL) + Data type synonyms are included in SQL Server for ISO compatibility. The following table lists the synonyms and the SQL Server system data types that they map to. -| Synonym | SQL Server system data type | -|-------------------------------|-----------------------------| -| Binary varying | varbinary | -| char varying | varchar | -| character | char | -| character | char(1) | -| character(n) | char(n) | -| character varying(n) | varchar(n) | -| Dec | decimal | -| Double precision | float | -| float[(n)] for n = 1-7 | real | -| float[(n)] for n = 8-15 | float | -| integer | int | -| national character(n) | nchar(n) | -| national char(n) | nchar(n) | -| national character varying(n) | nvarchar(n) | -| national char varying(n) | nvarchar(n) | -| national text | ntext | -| timestamp | rowversion | +| Synonym | System data type | +|-------------------------------|------------------| +| Binary varying | varbinary | +| char varying | varchar | +| character | char | +| character | char(1) | +| character(n) | char(n) | +| character varying(n) | varchar(n) | +| Dec | decimal | +| Double precision | float | +| float[(n)] for n = 1-7 | real | +| float[(n)] for n = 8-15 | float | +| integer | int | +| national character(n) | nchar(n) | +| national char(n) | nchar(n) | +| national character varying(n) | nvarchar(n) | +| national char varying(n) | nvarchar(n) | +| national text | ntext | +| timestamp | rowversion | Data type synonyms can be used instead of the corresponding base data type name in data definition language (DDL) statements, such as CREATE TABLE, CREATE PROCEDURE, or DECLARE @variable. However, after the object is created, the synonyms have no visibility. When the object is created, the object is assigned the base data type that is associated with the synonym. There is no record that the synonym was specified in the statement that created the object. +**[⬆ back to top](#table-of-contents)** + ## Precision, Scale, and Length (Transact-SQL) + Precision is the number of digits in a number. Scale is the number of digits to the right of the decimal point in a number. For example, the number 123.45 has a precision of 5 and a scale of 2. In SQL Server, the default maximum precision of numeric and decimal data types is 38. In earlier versions of SQL Server, the default maximum is 28. @@ -107,51 +133,216 @@ The operand expressions are denoted as expression e1, with precision p1 and scal | e1 / e2 | p1 - s1 + s2 + max(6, s1 + p2 + 1) | max(6, s1 + p2 + 1) | | e1 { UNION \| EXCEPT \| INTERSECT } e2 | max(s1, s2) + max(p1-s1, p2-s2) | max(s1, s2) | | e1 % e2 | min(p1-s1, p2 -s2) + max( s1,s2 ) | max(s1, s2) | + \* The result precision and scale have an absolute maximum of 38. When a result precision is greater than 38, the corresponding scale is reduced to prevent the integral part of a result from being truncated. +**[⬆ back to top](#table-of-contents)** + ## SQL Server, SSIS and Biml Data Types -The table below shows a simplified mapping between SQL Server, SSIS and Biml data types. The table does not include all possible mappings or all data types, but is meant as a quick reference while developing and learning Biml. - -| SQL Server | SSIS | Biml | -|------------------|----------------------|-----------------------| -| bigint | DT_I8 | Int64 | -| binary | DT_BYTES | Binary | -| bit | DT_BOOL | Boolean | -| char | DT_STR | AnsiStringFixedLength | -| date | DT_DBDATE | Date | -| datetime | DT_DBTIMESTAMP | DateTime | -| datetime2 | DT_DBTIMESTAMP2 | DateTime2 | -| datetimeoffset | DT_DBTIMESTAMPOFFSET | DateTimeOffset | -| decimal | DT_NUMERIC | Decimal | -| float | DT_R8 | Double | -| geography | DT_IMAGE | Object | -| geometry | DT_IMAGE | Object | -| hierarchyid | DT_BYTES | Object | -| image (*) | DT_IMAGE | Binary | -| int | DT_I4 | Int32 | -| money | DT_CY | Currency | -| nchar | DT_WSTR | StringFixedLength | -| ntext (*) | DT_NTEXT | String | -| numeric | DT_NUMERIC | Decimal | -| nvarchar | DT_WSTR | String | -| nvarchar(max) | DT_NTEXT | String | -| real | DT_R4 | Single | -| rowversion | DT_BYTES | Binary | -| smalldatetime | DT_DBTIMESTAMP | DateTime | -| smallint | DT_I2 | Int16 | -| smallmoney | DT_CY | Currency | -| sql_variant | DT_WSTR | Object | -| text (*) | DT_TEXT | AnsiString | -| time | DT_DBTIME2 | Time | -| timestamp (*) | DT_BYTES | Binary | -| tinyint | DT_UI1 | Byte | -| uniqueidentifier | DT_GUID | Guid | -| varbinary | DT_BYTES | Binary | -| varbinary(max) | DT_IMAGE | Binary | -| varchar | DT_STR | AnsiString | -| varchar(max) | DT_TEXT | AnsiString | -| xml | DT_NTEXT | Xml | + +The table below shows a simplified mapping between SQL Server, SSIS and Biml data types. +The table does not include all possible mappings or all data types, but is meant as a quick reference while developing and learning Biml. + +| SQL Server | SSIS Variables | SSIS Pipeline Buffer | OLE DB | ADO.NET | Biml | +|--------------------|----------------|----------------------|-------------------|-------------------|-----------------------| +| [bigint][1] | Int64 | DT_I8 | LARGE_INTEGER | Int64 | Int64 | +| [binary][8] | Object | DT_BYTES | - | Binary | Binary | +| [bit] | Boolean | DT_BOOL | VARIANT_BOOL | Boolean | Boolean | +| [char][5] | String | DT_STR | VARCHAR | StringFixedLength | AnsiStringFixedLength | +| [date] | Object | DT_DBDATE | DBDATE | Date | Date | +| [datetime] | DateTime | DT_DBTIMESTAMP | DATE | DateTime | DateTime | +| [datetime2] | Object | DT_DBTIMESTAMP2 | DBTIME2 | DateTime2 | DateTime2 | +| [datetimeoffset] | Object | DT_DBTIMESTAMPOFFSET | DBTIMESTAMPOFFSET | DateTimeOffset | DateTimeOffset | +| [decimal][2] | Decimal | DT_NUMERIC | NUMERIC | Decimal | Decimal | +| [float][4] | Double | DT_R8 | FLOAT | Double | Double | +| [geography] | - | DT_IMAGE | - | Object | Object | +| [geometry] | - | DT_IMAGE | - | Object | Object | +| [hierarchyid] | - | DT_BYTES | - | Object | Object | +| [image] (*) | Object | DT_IMAGE | - | Binary | Binary | +| [int][1] | Int32 | DT_I4 | LONG | Int32 | Int32 | +| [money][3] | Object | DT_CY, DT_NUMERIC | CURRENCY | Currency | Currency | +| [nchar][5] | String | DT_WSTR | NVARCHAR | StringFixedLength | StringFixedLength | +| [ntext] (*) | String | DT_NTEXT | - | String | String | +| [numeric] | Decimal | DT_NUMERIC | NUMERIC | Decimal | Decimal | +| [nvarchar][5] | String | DT_WSTR | NVARCHAR | String | String | +| [nvarchar](max) | Object | DT_NTEXT | - | - | String | +| [real] | Single | DT_R4 | FLOAT, DOUBLE | Single | Single | +| [rowversion] | Object | DT_BYTES | - | Binary | Binary | +| [smalldatetime] | DateTime | DT_DBTIMESTAMP | DATE | DateTime | DateTime | +| [smallint][1] | Int16 | DT_I2 | SHORT | Int16 | Int16 | +| [smallmoney][3] | Object | DT_CY, DT_NUMERIC | CURRENCY | Currency | Currency | +| [sql_variant] | Object | DT_WSTR, DT_NTEXT | - | Object | Object | +| [table] | Object | - | - | - | - | +| [text] (*) | Object | DT_TEXT | - | - | AnsiString | +| [time] | Object | DT_DBTIME2 | DBTIME2 | Time | Time | +| [timestamp] (*) | Object | DT_BYTES | - | Binary | Binary | +| [tinyint][1] | Byte | DT_UI1 | BYTE | Byte | Byte | +| [uniqueidentifier] | String, Object | DT_GUID | GUID | Guid | Guid | +| [varbinary][8] | Object | DT_BYTES | - | Binary | Binary | +| [varbinary(max)][8]| Object | DT_IMAGE | - | Binary | Binary | +| [varchar][5] | String | DT_STR | VARCHAR | String | AnsiString | +| [varchar](max) | Object | DT_TEXT | - | - | AnsiString | +| [xml] | Object | DT_NTEXT | - | - | Xml | + +(\* *These data types will be removed in a future version of SQL Server. Avoid using these data types in new projects, and try to change them in current projects*) + +**[⬆ back to top](#table-of-contents)** + + +## SQL Server Data Types Length + + +| General Type | Type | N value | Precision | Storage size, bytes | Range (in SQL Server) | +|-----------------------|--------------------|----------------|-----------------------------------|----------------------:|------------------------------------------------------------------------------------------------------------------------------------------------| +| Exact Numerics | [bit] | | | 1 | 1, 0 | +| Exact Numerics | [tinyint][1] | | | 1 | 0 to 255 | +| Exact Numerics | [smallint][1] | | | 2 | -2^15(-32768) to 2^15(32767) | +| Exact Numerics | [int][1] | | | 4 | -2^31(-2 147 483 648) to 2^31(2 147 483 647) | +| Exact Numerics | [bigint][1] | | | 8 | -2^63(-9 233 372 036 854 775 808) to 2^63(9 233 372 036 854 775 807) | +| Exact Numerics | [decimal][2] | | 1-9
10-19
20-28
29-38 | 5
9
13
17 | from -10^38 +1 through 10^38 -1 | +| Exact Numerics | [smallmoney][3] | | | 4 | -214 748.3648 to 214 748.3647 | +| Exact Numerics | [money][3] | | | 8 | -922 337 203 685 477.5808 to 922 337 203 685 477.5807 | +| Approximate Numerics | [float][4] | 1-24
25-53 | 7
15 | 4
8 | -3.40E+38 to -1.18E-38, 0 and 1.18E-38 to 3.40E+38
-1.79E+308 to -2.23E-308, 0 and 2.23E-308 to 1.79E+308 | +| Date and Time | [date] | | | 3 | 0001-01-01 through 9999-12-31
January 1, 1 CE through December 31, 9999 CE | +| Date and Time | [smalldatetime] | | | 4 | 1900-01-01 through 2079-06-06
January 1, 1900 through June 6, 2079
00:00:00 through 23:59:59 | +| Date and Time | [time] | | 8-11
12-13
14-16 | 3
4
5 | 00:00:00.0000000 through 23:59:59.9999999 | +| Date and Time | [datetime2] | | 1-2
3-4
5-7 | 6
7
8 | 0001-01-01 through 9999-12-31
January 1, 1 CE through December 31, 9999 CE
00:00:00 through 23:59:59.9999999 | +| Date and Time | [datetime] | | | 8 | anuary 1, 1753 through December 31, 9999
00:00:00 through 23:59:59.997 | +| Date and time | [datetimeoffset] | | 26-29
30-34 | 8
10 | 0001-01-01 through 9999-12-31
January 1, 1 CE through December 31, 9999 CE
00:00:00 through 23:59:59.9999999
-14:00 throuth +14:00 | +| Character Strings | [char][5] | 1-8000 | | n | | +| Character Strings | [varchar][5] | 1-8000 | | n + 2 | | +| Character Strings | [varchar](max) | 1-(2^31 - 1) | | 2^31 - 1 + 2 | | +| Character Strings | [nchar][5] | 1-4000 | | | | +| Character Strings | [nvarchar][5] | 1-4000 | | | | +| Character Strings | [nvarchar](max) | 1-(2^31 - 1) | | | | +| Character Strings | [ntext](*) | 1-(2^30 - 1) | | n + n | | +| Character Strings | [text](*) | 1-(2^31 - 1) | | | | +| Binary Strings | [image](*) | 1-(2^31 - 1) | | n | | +| Binary Strings | [binary][8] | 1-8000 | | n | | +| Binary Strings | [varbinary][8] | 1-8000 | | n | | +| Binary Strings | [varbinary(max)][8]| 1-(2^31 - 1) | | n + 2 | | +| Other Data Types | [cursor] | | | | | +| Other Data Types | [sql_variant] | | | max 8016 | | +| Other Data Types | [hierarchyid] | | | max 892 | | +| Other Data Types | [rowversion] | | | 8 | | +| Other Data Types | [timestamp](*) | | | | | +| Other Data Types | [uniqueidentifier] | | | 16 | | +| Other Data Types | [xml] | | | max 2Gb | | +| Other Data Types | [table] | | | | | +| Spatial Data Types | [geometry] | | | | | +| Spatial Data Types | [geography] | | | | | + +**[⬆ back to top](#table-of-contents)** + + +## SQL Server to MySQL, Oracle, PostgreSQL, SQLite Data Type Mapping + + +Common data-type conversions between SQL Server, Oracle, Sybase ASE, and DB2. +More details [here](https://www.sqlserverscience.com/documentation/common-data-type-conversions-between-sql-server-oracle-sybase-ase-and-db2/) + +| Source | Destination | +|-------------|-------------| +| MSSQLSERVER | DB2 | +| MSSQLSERVER | ORACLE | +| MSSQLSERVER | SYBASE | +| ORACLE | MSSQLSERVER | + +```tsql +DECLARE @source_dbms SYSNAME = N'%' + , @source_version SYSNAME = N'%' + , @source_type SYSNAME = N'%' + , @destination_dbms SYSNAME = N'%' + , @destination_version SYSNAME = N'%' + , @destination_type SYSNAME = N'%' + , @defaults_only BIT = 0; + +SELECT * +FROM sys.fn_helpdatatypemap ( + @source_dbms + , @source_version + , @source_type + , @destination_dbms + , @destination_version + , @destination_type + , @defaults_only + ); +``` + +| General Type | Type | MySQL | Oracle | PostgreSQL | SQLite | +|-----------------------|--------------------|---------------------------------|---------------|-----------------------------|--------:| +| Exact Numerics | [bit] | [TINYINT(1)][20] | NUMBER(3) | BOOLEAN | INTEGER | +| Exact Numerics | [tinyint][1] | [TINYINT(3) UNSIGNED][20] | NUMBER(3) | SMALLINT | INTEGER | +| Exact Numerics | [smallint][1] | [SMALLINT][20] | NUMBER(5) | SMALLINT | INTEGER | +| Exact Numerics | [int][1] | [INT][20] | NUMBER(10) | INT | INTEGER | +| Exact Numerics | [bigint][1] | [BIGINT][20] | NUMBER(19) | BIGINT | INTEGER | +| Exact Numerics | [decimal][2] | [DECIMAL][21] | NUMBER(p[,s]) | DECIMAL(p,s) | REAL | +| Exact Numerics | [smallmoney][3] | [DECIMAL(10,4)][21] | NUMBER(10,4) | MONEY | REAL | +| Exact Numerics | [money][3] | [DECIMAL(19,4)][21] | NUMBER(19,4) | MONEY | REAL | +| Approximate Numerics | [float][4] | [FLOAT][22] | FLOAT(49) | DOUBLE PRECISION | REAL | +| Date and Time | [date] | [DATE][22] | DATE | DATE | TEXT | +| Date and Time | [smalldatetime] | [TIMESTAMP][23] | DATE | TIMESTAMP(0) | TEXT | +| Date and Time | [time] | [TIME][24] | | TIME | TEXT | +| Date and Time | [datetime2] | [DATETIME][23] | | TIMESTAMP | TEXT | +| Date and Time | [datetime] | [DATETIME][23] | DATE | TIMESTAMP(3) | TEXT | +| Date and time | [datetimeoffset] | | | TIMESTAMP
with time zone| TEXT | +| Character Strings | [char][5] | CHAR | CHAR | CHAR | TEXT | +| Character Strings | [varchar][5] | VARCHAR | VARCHAR2 | VARCHAR | TEXT | +| Character Strings | [varchar](max) | LONGTEXT | VARCHAR2 | TEXT | TEXT | +| Character Strings | [nchar][5] | NCHAR | | NCHAR | TEXT | +| Character Strings | [nvarchar][5] | VARCHAR with character set utf8 | NCHAR | VARCHAR | TEXT | +| Character Strings | [nvarchar](max) | LONGTEXT | NCHAR | TEXT | TEXT | +| Character Strings | [ntext][4] (*) | | LONG | TEXT | TEXT | +| Character Strings | [text][4] (*) | | LONG | TEXT | TEXT | +| Binary Strings | [image][4] (*) | LONGBLOB | LONG RAW | BYTEA | BLOB | +| Binary Strings | [binary][8] | BINARY | RAW | BYTEA | BLOB | +| Binary Strings | [varbinary][8] | | RAW | BYTEA | BLOB | +| Binary Strings | [varbinary(max)][8]| LONGTEXT | RAW | BYTEA | BLOB | +| Other Data Types | [cursor] | | | | TEXT | +| Other Data Types | [sql_variant] | BLOB | | | TEXT | +| Other Data Types | [hierarchyid] | | | | TEXT | +| Other Data Types | [rowversion] | | | BYTEA | TEXT | +| Other Data Types | [timestamp] (*) | | RAW | BYTEA | TEXT | +| Other Data Types | [uniqueidentifier] | CHAR | CHAR(36) | CHAR(16) | TEXT | +| Other Data Types | [xml] | | | XML | TEXT | +| Other Data Types | [table] | | | | - | +| Spatial Data Types | [geometry] | | | VARCHAR | TEXT | +| Spatial Data Types | [geography] | | | VARCHAR | TEXT | + +**[⬆ back to top](#table-of-contents)** (\* *These data types will be removed in a future version of SQL Server. Avoid using these data types in new projects, and try to change them in current projects*) +[1]:https://docs.microsoft.com/sql/t-sql/data-types/int-bigint-smallint-and-tinyint-transact-sql +[2]:https://docs.microsoft.com/sql/t-sql/data-types/decimal-and-numeric-transact-sql +[3]:https://docs.microsoft.com/sql/t-sql/data-types/money-and-smallmoney-transact-sql +[4]:https://docs.microsoft.com/sql/t-sql/data-types/float-and-real-transact-sql +[5]:https://docs.microsoft.com/sql/t-sql/data-types/char-and-varchar-transact-sql +[6]:https://docs.microsoft.com/sql/t-sql/data-types/nchar-and-nvarchar-transact-sql +[7]:https://docs.microsoft.com/sql/t-sql/data-types/ntext-text-and-image-transact-sql +[8]:https://docs.microsoft.com/sql/t-sql/data-types/binary-and-varbinary-transact-sql + +[bit]:https://docs.microsoft.com/sql/t-sql/data-types/bit-transact-sql +[date]:https://docs.microsoft.com/sql/t-sql/data-types/date-transact-sql +[smalldatetime]:https://docs.microsoft.com/sql/t-sql/data-types/smalldatetime-transact-sql +[time]:https://docs.microsoft.com/sql/t-sql/data-types/time-transact-sql +[datetime2]:https://docs.microsoft.com/sql/t-sql/data-types/datetime2-transact-sql +[datetime]:https://docs.microsoft.com/sql/t-sql/data-types/datetime-transact-sql +[datetimeoffset]:https://docs.microsoft.com/sql/t-sql/data-types/datetimeoffset-transact-sql +[cursor]:https://docs.microsoft.com/sql/t-sql/data-types/cursor-transact-sql +[sql_variant]:https://docs.microsoft.com/sql/t-sql/data-types/sql-variant-transact-sql +[hierarchyid]:https://docs.microsoft.com/sql/t-sql/data-types/hierarchyid-data-type-method-reference +[rowversion]:https://docs.microsoft.com/sql/t-sql/data-types/rowversion-transact-sql +[timestamp]:https://docs.microsoft.com/sql/t-sql/data-types/rowversion-transact-sql#remarks +[uniqueidentifier]:https://docs.microsoft.com/sql/t-sql/data-types/uniqueidentifier-transact-sql +[xml]:https://docs.microsoft.com/sql/t-sql/xml/xml-transact-sql +[table]:https://docs.microsoft.com/sql/t-sql/data-types/table-transact-sql +[geometry]:https://docs.microsoft.com/sql/t-sql/spatial-geometry/spatial-types-geometry-transact-sql +[geography]:https://docs.microsoft.com/sql/t-sql/spatial-geography/spatial-types-geography + +[20]:https://dev.mysql.com/doc/refman/8.0/en/integer-types.html +[21]:https://dev.mysql.com/doc/refman/8.0/en/fixed-point-types.html +[22]:https://dev.mysql.com/doc/refman/8.0/en/floating-point-types.html +[23]:https://dev.mysql.com/doc/refman/8.0/en/datetime.html +[24]:https://dev.mysql.com/doc/refman/8.0/en/time.html diff --git a/SQL Server Drivers.md b/SQL Server Drivers.md new file mode 100644 index 00000000..60b43e28 --- /dev/null +++ b/SQL Server Drivers.md @@ -0,0 +1,90 @@ +# SQL Server Drivers +SQL Server supports a wide variety of drivers, which are used by client applications or services to connect and query for data. +Please see below for a summary of the different drivers, both current and legacy. + +[SQL Server Drivers](https://docs.microsoft.com/en-us/sql/connect/sql-server-drivers) + + +## Current SQL Drivers +The following SQL Drivers are actively developed. Each driver has a support statement that can be found by following the links. + +### ADO.NET +ADO.NET is a library that is a standard part of the .Net framework. It is a C# implementation of the TDS protocol, which is supported by all modern versions of SQL Server. +This driver is developed, tested, and supported by Microsoft. + +[Microsoft ADO.NET for SQL Server](https://docs.microsoft.com/en-us/sql/connect/ado-net/microsoft-ado-net-for-sql-server) | [Download .Net Driver](http://www.microsoft.com/net/download/) + + +### JDBC +The JDBC SQL driver is a Java implementation of the TDS protocol, which is supported by all modern versions of SQL Server. This driver is developed, tested, and supported by Microsoft. + +[Microsoft JDBC Driver for SQL Server](https://docs.microsoft.com/en-us/sql/connect/jdbc/microsoft-jdbc-driver-for-sql-server) | [Download JDBC Driver](https://docs.microsoft.com/en-us/sql/connect/jdbc/download-microsoft-jdbc-driver-for-sql-server?view=sql-server-2017) + + +### ODBC +The ODBC SQL driver is a C++ implementation of the TDS protocol, which is supported by all modern versions of SQL Server. This driver is developed, tested, and supported by Microsoft. + +[Microsoft ODBC Driver for SQL Server](https://docs.microsoft.com/en-us/sql/connect/odbc/microsoft-odbc-driver-for-sql-server) | [Download ODBC Driver](https://docs.microsoft.com/en-us/sql/connect/odbc/download-odbc-driver-for-sql-server) + + +### PHP +The PHP SQL driver relies on the Microsoft SQL Server ODBC Driver to handle the low-level communication with SQL Server. This driver is developed, tested, and supported by Microsoft. + +[Microsoft PHP Driver for SQL Driver](https://docs.microsoft.com/en-us/sql/connect/php/microsoft-php-driver-for-sql-server) | [Download PHP Driver](https://www.microsoft.com/en-us/download/details.aspx?id=20098) | [Github](https://github.com/Microsoft/msphpsql) + + +### Node.js +The tedious module is a javascript implementation of the TDS protocol, which is supported by all modern versions of SQL Server. The driver is an open source project, available on Github. + +[Node.js Driver for SQL Server](https://docs.microsoft.com/en-us/sql/connect/node-js/node-js-driver-for-sql-server) | [Install Node.js Driver](https://docs.microsoft.com/en-us/sql/connect/node-js/step-1-configure-development-environment-for-node-js-development) + + +### Python +The pymssql module is a Python implementation of the TDS protocol, which is supported by all modern versions of SQL Server. + +[Python Driver for SQL Server](https://docs.microsoft.com/en-us/sql/connect/python/python-driver-for-sql-server) + +There are several python SQL Drivers available. Choose which one you want to use, and configure your development environment: +1. [Python SQL Driver - pyodbc](https://docs.microsoft.com/en-us/sql/connect/python/pyodbc/python-sql-driver-pyodbc) +2. [Python SQL Driver - pymssql](https://docs.microsoft.com/en-us/sql/connect/python/pymssql/python-sql-driver-pymssql) + + +### Ruby +The TinyTDS gem is a Ruby implementation of the TDS protocol, which is supported by all modern versions of SQL Server. + +[Ruby Driver for SQL Server](https://docs.microsoft.com/en-us/sql/connect/ruby/ruby-driver-for-sql-server) | [Install Ruby Driver](https://docs.microsoft.com/en-us/sql/connect/ruby/ruby-driver-for-sql-server) + + +### Rails +The SQL Server adapter for ActiveRecord v5.1 using SQL Server 2012 or higher. + +[SQL Server Adapter For Rails](https://github.com/rails-sqlserver/activerecord-sqlserver-adapter) + + +## Legacy SQL Drivers +The following SQL Drivers were developed and tested by Microsoft, but are not recommended to be used for new development. +Each driver has a support statement that can be found by following the links. + + +## OLEDB +The OLE DB provider will not be included after SQL Server 2012. + +[Microsoft OLE DB](https://docs.microsoft.com/en-us/previous-versions/windows/desktop/ms722784(v=vs.85)) + + +### ADO +The ADO SQL driver has a direct dependency on the OLE DB provider. As such, it will not be supported after SQL Server 2012. + +[ActiveX Data Objects (ADO)](https://docs.microsoft.com/en-us/sql/ado/guide/data/activex-data-objects-ado) + + +## Another alternatives + - [Devart ODBC Drivers](https://www.devart.com/odbc/) + - [SNAC - SQL Server Native Client](https://docs.microsoft.com/en-us/sql/relational-databases/native-client/sql-server-native-client) + - [RODBC: ODBC Database Access CRAN](https://mran.microsoft.com/package/RODBC/) + - [RODBC: ODBC Database Access MRAN](https://mran.microsoft.com/package/RODBC/) + - [go-mssqldb - Microsoft SQL server driver written in go language](https://github.com/denisenkom/go-mssqldb) + - [Node TDS module for connecting to SQL Server databases](https://github.com/tediousjs/tedious/) + - [SQLProvider - a general .NET/Mono SQL database type provider](https://github.com/fsprojects/SQLProvider) (Other database support: SQL Server, SQLite, PostgreSQL, Oracle, MySQL (& MariaDB), MsAccess, Firebird) + - [RSQLServer - an R package that provides a SQL Server R Database Interface (DBI), based on the cross-platform jTDS JDBC driver](https://github.com/imanuelcostigan/RSQLServer) + - [jTDS JDBC driver](http://jtds.sourceforge.net/index.html) diff --git a/SQL Server Edition.md b/SQL Server Edition.md index b4a75e0f..2f72035a 100644 --- a/SQL Server Edition.md +++ b/SQL Server Edition.md @@ -1,16 +1,32 @@ # Microsoft SQL Server Edition Source links: - - [Official microsoft page](http://www.microsoft.com/en-us/server-cloud/products/sql-server-editions/) - - [Features Supported by the Editions of SQL Server 2016](https://msdn.microsoft.com/en-us/library/cc645993.aspx) + - [Editions and supported features of SQL Server 2017](https://docs.microsoft.com/en-us/sql/sql-server/editions-and-components-of-sql-server-2017?view=sql-server-2017) + - [Features Supported by the Editions of SQL Server 2017](https://docs.microsoft.com/en-us/sql/sql-server/editions-and-components-of-sql-server-2017) + - [Features Supported by the Editions of SQL Server 2016](https://docs.microsoft.com/en-us/sql/sql-server/editions-and-components-of-sql-server-2016) - [Features Supported by the Editions of SQL Server 2014](https://msdn.microsoft.com/en-us/library/cc645993%28v=SQL.120%29.aspx) - [Features Supported by the Editions of SQL Server 2012](https://msdn.microsoft.com/en-us/library/cc645993%28v=SQL.110%29.aspx) - [Features Supported by the Editions of SQL Server 2008](https://msdn.microsoft.com/en-us/library/cc645993%28v=SQL.100%29.aspx) - [Features Supported by the Editions of SQL Server 2005](https://technet.microsoft.com/en-us/library/ms143761%28v=sql.90%29.aspx) + - [SQL Server 2017 Pricing](https://www.microsoft.com/en-Us/sql-server/sql-server-2017-pricing) + - [Azure SQL Database pricing](https://azure.microsoft.com/en-us/pricing/details/sql-database/managed/?cdn=disable) + - [An Overview of SQL Server 2016 Licensing](http://sqlmag.com/scaling-success-sql-server-2016/overview-sql-server-2016-licensing) ## Microsoft SQL Server 2016 Edition -SQL Server 2016 is available in an Evaluation edition for a 180-day trial period. For more information, see the SQL Server [Trial Software Web Site](https://www.microsoft.com/en-us/server-cloud/products/sql-server-2016/default.aspx). +SQL Server 2016 is available in an Evaluation edition for a 180-day trial period. For more information, see the [SQL Server 2016 Official page](https://www.microsoft.com/en-us/sql-server/sql-server-2016). + + - SQL Server 2016 Enterprise Edition - Core licensing only + - SQL Server 2016 Standard Edition - Core or Server + CAL (Client Access License) licensing + - SQL Server 2016 Express Edition - Free + - SQL Server 2016 Developer Edition - Free + - SQL Server 2016 Evaluation Edition - 180 day trial + +The Developer edition has the same feature set as the Enterprise edition. +It is completely free and can be run on any number of devices, but it cannot be used for production workloads. +You can get it at SQL Server 2016 Developer edition. +In contrast, the SQL Server 2016 Express editions can be used for production workloads, but they are limited to a single CPU and four cores, 1 GB of RAM (4 GB for the SQL Server 2016 Express with Advanced Services for Reporting Services). +There is also a 10 GB per databases limitation. ## Microsoft SQL Server 2014 Edition @@ -38,4 +54,3 @@ SQL Server 2016 is available in an Evaluation edition for a 180-day trial period | Data warehousing (In-memory columnstore, compression, partitioning) | Yes | No | No | No | | Advanced high availability (AlwaysOn, multiple, active secondaries; multi-site, geo-clustering) | Yes | No | No | No | | Advanced transaction processing (In-memory OLTP) | Yes | No | No | No | - diff --git a/SQL Server Hints.md b/SQL Server Hints.md new file mode 100644 index 00000000..dee4f3dd --- /dev/null +++ b/SQL Server Hints.md @@ -0,0 +1,15 @@ +# Microsoft Transact-SQL Hints + + - [Microsoft Transact-SQL Hints](https://docs.microsoft.com/en-us/sql/t-sql/queries/hints-transact-sql) + - [Hints (Transact-SQL) - Join](https://docs.microsoft.com/en-us/sql/t-sql/queries/hints-transact-sql-join) + - [Hints (Transact-SQL) - Table](https://docs.microsoft.com/en-us/sql/t-sql/queries/hints-transact-sql-table) + - [Hints (Transact-SQL) - Query](https://docs.microsoft.com/en-us/sql/t-sql/queries/hints-transact-sql-query) + +**Hint names are case-insensitive.** + +**Some USE HINT hints may conflict with trace flags enabled at the global or session level, or database scoped configuration settings. +In this case, the query level hint (USE HINT) always takes precedence. +If a USE HINT conflicts with another query hint or a trace flag enabled at the query level (such as by QUERYTRACEON), SQL Server will generate an error when trying to execute the query.** + +**Separating hints by spaces rather than commas is a deprecated feature: This feature will be removed in a future version of Microsoft SQL Server. +Do not use this feature in new development work, and modify applications that currently use this feature as soon as possible.** \ No newline at end of file diff --git a/SQL Server Name Convention and T-SQL Programming Style.md b/SQL Server Name Convention and T-SQL Programming Style.md index 9bdf39b9..78b68375 100644 --- a/SQL Server Name Convention and T-SQL Programming Style.md +++ b/SQL Server Name Convention and T-SQL Programming Style.md @@ -1,18 +1,36 @@ # SQL Server Name Convention and T-SQL Programming Style +[Naming convention][99] is a set of rules for choosing the character sequence to be used for identifiers which denote variables, types, functions, and other entities in source code and documentation. +Reasons for using a naming convention (as opposed to allowing programmers to choose any character sequence) include the following: + - To reduce the effort needed to read and understand source code; + - To enable code reviews to focus on more important issues than arguing over syntax and naming standards. + - To enable code quality review tools to focus their reporting mainly on significant issues other than syntax and style preferences. -## SQL Server Object Name +[99]:https://en.wikipedia.org/wiki/Naming_convention_(programming) + + +## Table of Contents + - [SQL Server Object Name Convention](#sql-server-object-name-convention) + - [SQL Server Data Types Recommendation](#data-types-recommendation) + - [T-SQL Programming Style](#t-sql-programming-style) + - [General programming style](#general-programming-style) + - [Stored procedures and functions programming style](#programming-style) + - [Reference and useful links](#reference) + + + +## SQL Server Object Name Convention | Object | Code | Notation | Length | Plural | Prefix | Suffix | Abbreviation | Char Mask | Example | |----------------------------------|------| ---------- |-------:|--------|--------|--------|--------------|--------------|------------------------------------| | Database | | UPPERCASE | 30 | No | No | No | Yes | [A-z] | MYDATABASE | | Database Trigger | | PascalCase | 50 | No | DTR_ | No | Yes | [A-z] | DTR_CheckLogin | -| Schema | | lowercase | 30 | No | No | No | Yes | [A-z][0-9] | myschema | +| Schema | | lowercase | 30 | No | No | No | Yes | [a-z][0-9] | myschema | | File Table | | PascalCase | 128 | No | FT_ | No | Yes | [A-z][0-9] | FT_MyTable | -| Global Temporary Table | | PascalCase | 118 | No | No | No | Yes | ##[A-z][0-9] | ##MyTable | -| Local Temporary Table | | PascalCase | 118 | No | No | No | Yes | #[A-z][0-9] | #MyTable | -| Table | U | PascalCase | 30 | No | No | No | Yes | [A-z][0-9] | MyTable | -| Table Column | | PascalCase | 30 | No | No | No | Yes | [A-z][0-9] | MyColumn | +| Global Temporary Table | | PascalCase | 117 | No | No | No | Yes | ##[A-z][0-9] | ##MyTable | +| Local Temporary Table | | PascalCase | 116 | No | No | No | Yes | #[A-z][0-9] | #MyTable | +| Table | U | PascalCase | 128 | No | No | No | Yes | [A-z][0-9] | MyTable | +| Table Column | | PascalCase | 128 | No | No | No | Yes | [A-z][0-9] | MyColumn | | Table Default Values | D | PascalCase | 128 | No | DF_ | No | Yes | [A-z][0-9] | DF_MyTable_MyColumn | | Table Check Column Constraint | C | PascalCase | 128 | No | CK_ | No | Yes | [A-z][0-9] | CK_MyTable_MyColumn | | Table Check Table Constraint | C | PascalCase | 128 | No | CTK_ | No | Yes | [A-z][0-9] | CTK_MyTable_MyColumn_AnotherColumn | @@ -21,67 +39,250 @@ | Table Foreign Key | F | PascalCase | 128 | No | FK_ | No | Yes | [A-z][0-9] | FK_MyTable_ForeignTableID | | Table Clustered Index | | PascalCase | 128 | No | IXC_ | No | Yes | [A-z][0-9] | IXC_MyTable_MyColumn_AnotherColumn | | Table Non Clustered Index | | PascalCase | 128 | No | IX_ | No | Yes | [A-z][0-9] | IX_MyTable_MyColumn_AnotherColumn | -| Table Trigger |TR | PascalCase | 128 | No | TR_ | No | Yes | [A-z][0-9] | TR_MyTable_LogicalName | -| View |V | PascalCase | 128 | No | VI_ | No | No | [A-z][0-9] | VI_LogicalName | -| Stored Procedure |P | PascalCase | 128 | No | usp_ | No | No | [A-z][0-9] | usp_LogicalName | -| Scalar User-Defined Function |FN | PascalCase | 50 | No | udf_ | No | No | [A-z][0-9] | udf_FunctionLogicalName | -| Table-Valued Function |FN | PascalCase | 50 | No | tvf_ | No | No | [A-z][0-9] | tvf_FunctionLogicalName | -| Synonym |SN | camelCase | 128 | No | sy_ | No | No | [A-z][0-9] | sy_logicalName | -| Sequence |SO | PascalCase | 128 | No | sq_ | No | No | [A-z][0-9] | sq_TableName | +| Table Trigger | TR | PascalCase | 128 | No | TR_ | No | Yes | [A-z][0-9] | TR_MyTable_LogicalName | +| View | V | PascalCase | 128 | No | VI_ | No | No | [A-z][0-9] | VI_LogicalName | +| Stored Procedure | P | PascalCase | 128 | No | usp_ | No | No | [A-z][0-9] | usp_LogicalName | +| Scalar User-Defined Function | FN | PascalCase | 128 | No | udf_ | No | No | [A-z][0-9] | udf_FunctionLogicalName | +| Table-Valued Function | FN | PascalCase | 128 | No | tvf_ | No | No | [A-z][0-9] | tvf_FunctionLogicalName | +| Synonym | SN | camelCase | 128 | No | sy_ | No | No | [A-z][0-9] | sy_logicalName | +| Sequence | SO | PascalCase | 128 | No | sq_ | No | No | [A-z][0-9] | sq_TableName | | CLR Assembly | | PascalCase | 128 | No | CA | No | Yes | [A-z][0-9] | CALogicalName | -| CLR Stored Procedures |PC | PascalCase | 128 | No | pc_ | No | Yes | [A-z][0-9] | pc_CAName_LogicalName | -| CLR Scalar User-Defined Function | | PascalCase | 50 | No | cudf_ | No | No | [A-z][0-9] | cudf_CAName_LogicalName | -| CLR Table-Valued Function | | PascalCase | 50 | No | ctvf_ | No | No | [A-z][0-9] | ctvf_CAName_LogicalName | -| CLR User-Defined Aggregates | | PascalCase | 50 | No | ca_ | No | No | [A-z][0-9] | ca_CAName_LogicalName | -| CLR User-Defined Types | | PascalCase | 50 | No | ct_ | No | No | [A-z][0-9] | ct_CAName_LogicalName | -| CLR Triggers | | PascalCase | 50 | No | ctr_ | No | No | [A-z][0-9] | ctr_CAName_LogicalName | +| CLR Stored Procedures | PC | PascalCase | 128 | No | pc_ | No | Yes | [A-z][0-9] | pc_CAName_LogicalName | +| CLR Scalar User-Defined Function | | PascalCase | 128 | No | cudf_ | No | No | [A-z][0-9] | cudf_CAName_LogicalName | +| CLR Table-Valued Function | | PascalCase | 128 | No | ctvf_ | No | No | [A-z][0-9] | ctvf_CAName_LogicalName | +| CLR User-Defined Aggregates | | PascalCase | 128 | No | ca_ | No | No | [A-z][0-9] | ca_CAName_LogicalName | +| CLR User-Defined Types | | PascalCase | 128 | No | ct_ | No | No | [A-z][0-9] | ct_CAName_LogicalName | +| CLR Triggers | | PascalCase | 128 | No | ctr_ | No | No | [A-z][0-9] | ctr_CAName_LogicalName | + +**[⬆ back to top](#table-of-contents)** + + + +## SQL Server Data Types Recommendation +More details about SQL Server data types and mapping it with another databases you can find [here](https://github.com/ktaranov/sqlserver-kit/blob/master/SQL%20Server%20Data%20Types.md) + +| General Type | Type | Recommended | What use instead | Why use or not | +|----------------------|---------------------|----------------|--------------------|-----------------------------------------------------------| +| Exact Numerics | [bit] | Maybe | [tinyint][1] | | +| Exact Numerics | [tinyint][1] | Maybe | [int][1] | | +| Exact Numerics | [smallint][1] | Maybe | [int][1] | | +| Exact Numerics | [int][1] | Yes | - | | +| Exact Numerics | [bigint][1] | Yes | [int][1] | | +| Exact Numerics | [decimal][2] | Yes | - | | +| Exact Numerics | [smallmoney][3] | No | [decimal][2] | [possibility to loss precision due to rounding errors][9] | +| Exact Numerics | [money][3] | No | [decimal][2] | [possibility to loss precision due to rounding errors][9] | +| Approximate Numerics | [real][4] | Yes | - | | +| Approximate Numerics | [float][4] | Yes | - | | +| Date and Time | [date] | Yes | - | | +| Date and Time | [smalldatetime] | Maybe | [date] | | +| Date and Time | [time] | Yes | - | | +| Date and Time | [datetime2] | Yes | - | | +| Date and Time | [datetime] | No | [datetime2] | | +| Date and time | [datetimeoffset] | Yes | - | | +| Character Strings | [char][5] | Maybe | | | +| Character Strings | [varchar][5] | Yes | [varchar][5] | | +| Character Strings | [varchar(max)][5] | Yes | - | | +| Character Strings | [nchar][6] | Maybe | [nvarchar][6] | | +| Character Strings | [nvarchar][6] | Yes | - | | +| Character Strings | [nvarchar(max)][6] | Yes | - | | +| Character Strings | [ntext][7] | **Deprecated** | [nvarchar(max)][6] | | +| Character Strings | [text][7] | **Deprecated** | [nvarchar(max)][6] | | +| Binary Strings | [image][7] | **Deprecated** | [nvarchar(max)][6] | | +| Binary Strings | [binary][8] | **Deprecated** | [nvarchar(max)][6] | | +| Binary Strings | [varbinary][8] | Yes | - | | +| Binary Strings | [varbinary(max)][8] | Yes | - | | +| Other Data Types | [cursor] | Maybe | - | | +| Other Data Types | [sql_variant] | No | [varchar][5]? | | +| Other Data Types | [hierarchyid] | Maybe | - | | +| Other Data Types | [rowversion] | Maybe | - | | +| Other Data Types | [timestamp] | **Deprecated** | [rowversion] | it is just synonym to [rowversion] data type | +| Other Data Types | [uniqueidentifier] | Yes | - | | +| Other Data Types | [xml] | Yes | - | | +| Other Data Types | [table] | Maybe | - | | +| Spatial Data Types | [geometry] | Yes | - | | +| Spatial Data Types | [geography] | Yes | - | | + +[1]:https://docs.microsoft.com/sql/t-sql/data-types/int-bigint-smallint-and-tinyint-transact-sql +[2]:https://docs.microsoft.com/sql/t-sql/data-types/decimal-and-numeric-transact-sql +[3]:https://docs.microsoft.com/sql/t-sql/data-types/money-and-smallmoney-transact-sql +[4]:https://docs.microsoft.com/sql/t-sql/data-types/float-and-real-transact-sql +[5]:https://docs.microsoft.com/sql/t-sql/data-types/char-and-varchar-transact-sql +[6]:https://docs.microsoft.com/sql/t-sql/data-types/nchar-and-nvarchar-transact-sql +[7]:https://docs.microsoft.com/sql/t-sql/data-types/ntext-text-and-image-transact-sql +[8]:https://docs.microsoft.com/sql/t-sql/data-types/binary-and-varbinary-transact-sql + +[9]:https://www.red-gate.com/hub/product-learning/sql-prompt/avoid-use-money-smallmoney-datatypes + +[bit]:https://docs.microsoft.com/sql/t-sql/data-types/bit-transact-sql +[date]:https://docs.microsoft.com/sql/t-sql/data-types/date-transact-sql +[smalldatetime]:https://docs.microsoft.com/sql/t-sql/data-types/smalldatetime-transact-sql +[time]:https://docs.microsoft.com/sql/t-sql/data-types/time-transact-sql +[datetime2]:https://docs.microsoft.com/sql/t-sql/data-types/datetime2-transact-sql +[datetime]:https://docs.microsoft.com/sql/t-sql/data-types/datetime-transact-sql +[datetimeoffset]:https://docs.microsoft.com/sql/t-sql/data-types/datetimeoffset-transact-sql +[cursor]:https://docs.microsoft.com/sql/t-sql/data-types/cursor-transact-sql +[sql_variant]:https://docs.microsoft.com/sql/t-sql/data-types/sql-variant-transact-sql +[hierarchyid]:https://docs.microsoft.com/sql/t-sql/data-types/hierarchyid-data-type-method-reference +[rowversion]:https://docs.microsoft.com/sql/t-sql/data-types/rowversion-transact-sql +[timestamp]:https://docs.microsoft.com/sql/t-sql/data-types/rowversion-transact-sql#remarks +[uniqueidentifier]:https://docs.microsoft.com/sql/t-sql/data-types/uniqueidentifier-transact-sql +[xml]:https://docs.microsoft.com/sql/t-sql/xml/xml-transact-sql +[table]:https://docs.microsoft.com/sql/t-sql/data-types/table-transact-sql +[geometry]:https://docs.microsoft.com/sql/t-sql/spatial-geometry/spatial-types-geometry-transact-sql +[geography]:https://docs.microsoft.com/sql/t-sql/spatial-geography/spatial-types-geography + +**[⬆ back to top](#table-of-contents)** ## T-SQL Programming Style +SQL Server TSQL Coding Conventions, Best Practices, and Programming Guidelines ### General programming style - Delimiters: spaces (not tabs) - - No square brackets [] are allowed in object names and alias, use only symbols [A-z] and numeric [0-9] - - All finished expressions should have ; at the end - - All scripts should end with `GO` and line break - - The first argument in SELECT expression should be on the same line with it: `SELECT LastName ...` + - Avoid using asterisk in select statements `SELECT *`, use explicit column names. More details [here](https://www.red-gate.com/hub/product-learning/sql-prompt/finding-code-smells-using-sql-prompt-asterisk-select-list) + - No square brackets `[]` and [reserved words](https://github.com/ktaranov/sqlserver-kit/blob/master/Scripts/Check_Reserved_Words_For_Object_Names.sql) in object names and alias, use only Latin symbols **`[A-z]`** and numeric **`[0-9]`** + - Prefer [ANSI syntax](http://standards.iso.org/ittf/PubliclyAvailableStandards/c053681_ISO_IEC_9075-1_2011.zip) and functions + - All finished expressions should have `;` at the end (this is ANSI standard and Microsoft announced with the SQL Server 2008 release that semicolon statement terminators will become mandatory in a future version so statement terminators other than semicolons (whitespace) are currently deprecated. This deprecation announcement means that you should always use semicolon terminators in new development.) + More details [here](http://www.dbdelta.com/always-use-semicolon-statement-terminators/) + - All script files should end with `GO` and line break + - Avoid non-standard column aliases, use ,if required, double-quotes and always `AS` keyword: `SELECT p.LastName AS "Last Name" FROM dbo.Person AS p;` + More details [here](https://www.red-gate.com/hub/product-learning/sql-prompt/sql-prompt-code-analysis-avoid-non-standard-column-aliases). + All possible ways using aliases in SQL Server: + + ```sql + SELECT Tables = Schema_Name(schema_id)+'.'+[name] FROM sys.tables; + SELECT "Tables" = Schema_Name(schema_id)+'.'+[name] FROM sys.tables; + SELECT [Tables] = Schema_Name(schema_id)+'.'+[name] FROM sys.tables; + SELECT 'Tables' = Schema_Name(schema_id)+'.'+[name] FROM sys.tables; + SELECT Schema_Name(schema_id)+'.'+[name] [Tables] FROM sys.tables; + SELECT Schema_Name(schema_id)+'.'+[name] 'Tables' FROM sys.tables; + SELECT Schema_Name(schema_id)+'.'+[name] "Tables" FROM sys.tables; + SELECT Schema_Name(schema_id)+'.'+[name] Tables FROM sys.tables; + SELECT Schema_Name(schema_id)+'.'+[name] AS [Tables] FROM sys.tables; + SELECT Schema_Name(schema_id)+'.'+[name] AS 'Tables' FROM sys.tables; + SELECT Schema_Name(schema_id)+'.'+[name] AS Tables FROM sys.tables; + /* Below recommended due to ANSI + SELECT Schema_Name(schema_id)+'.'+[name] AS "Tables" FROM sys.tables; + ``` + - The first argument in `SELECT` expression should be on the same line with it: `SELECT LastName …` - Arguments are divided by line breaks, commas should be placed before an argument: ```sql SELECT FirstName - , LastName + , LastName ``` + - For SQL Server >= 2012 use `FETCH-OFFSET` instead `TOP`. But if you use `TOP` avoid use `TOP` in a `SELECT` statement without an `ORDER BY`. More details [here](https://www.red-gate.com/hub/product-learning/sql-prompt/finding-code-smells-using-sql-prompt-top-without-order-select-statement) + - Use `TOP` function with brackets because `TOP` has supports use of an expression, such as `(@Rows*2)`, or a subquery: `SELECT TOP(100) LastName …`. + More details [here](https://www.red-gate.com/hub/product-learning/sql-prompt/sql-prompt-code-analysis-avoiding-old-style-top-clause). Also `TOP` without brackets does not work with `UPDATE` and `DELETE` statements. + - For demo queries use `TOP(100)` or lower value because SQL Server SQL Server uses one sorting method for TOP 1-100 rows, and a different one for 101+ rows + More details [here](https://www.brentozar.com/archive/2017/09/much-can-one-row-change-query-plan-part-2/) - Keywords and data types declaration should be in **UPPERCASE** - - `FROM, WHERE, INTO, JOIN, ORDER BY` expressions should be aligned so, that all their arguments are placed under each other - - All objects must used with schema names `FROM dbo.Table` + - `FROM, WHERE, INTO, JOIN, GROUP BY, ORDER BY` expressions should be aligned so, that all their arguments are placed under each other (see Example below) + - All objects must used with schema names but without database and server name: `FROM dbo.Table`. For stored procedure more details [here](https://www.red-gate.com/hub/product-learning/sql-prompt/finding-code-smells-using-sql-prompt-procedures-lack-schema-qualification) + - All system database and tables must be in lower case for properly working in Case Sensitive instance: `master, sys.tables …` + - Avoid using [`ISNUMERIC`](https://docs.microsoft.com/en-us/sql/t-sql/functions/isnumeric-transact-sql) function. Use for SQL Server >= 2012 [`TRY_CONVERT`](https://docs.microsoft.com/en-us/sql/t-sql/functions/try-convert-transact-sql) function and for SQL Server < 2012 `LIKE` expression: + ```sql + CASE WHEN Stuff(LTrim(TapAngle),1,1,'') NOT LIKE '%[^-+.ED0123456789]%' --is it a float? + AND Left(LTrim(TapAngle),1) LIKE '[-.+0123456789]' + AND TapAngle LIKE '%[0123456789][ED][-+0123456789]%' + AND Right(TapAngle ,1) LIKE N'[0123456789]' + THEN 'float' + WHEN Stuff(LTrim(TapAngle),1,1,'') NOT LIKE '%[^.0123456789]%' --is it numeric + AND Left(LTrim(TapAngle),1) LIKE '[-.+0123456789]' + AND TapAngle LIKE '%.%' AND TapAngle NOT LIKE '%.%.%' + AND TapAngle LIKE '%[0123456789]%' + THEN 'float' + ELSE NULL + END + ``` + More details [here](https://www.red-gate.com/hub/product-learning/sql-prompt/sql-prompt-code-analysis-avoid-using-isnumeric-function-e1029) + - Avoid using `INSERT INTO` a permanent table with `ORDER BY`, more details [here](https://www.red-gate.com/hub/product-learning/sql-prompt/sql-prompt-code-analysis-insert-permanent-table-order-pe020) + - Avoid using shorthand (`wk, yyyy, d` etc.) with date/time operations, use full names: `month, day, year`. More details [here](https://sqlblog.org/2011/09/20/bad-habits-to-kick-using-shorthand-with-date-time-operations) + - Avoid ambiguous formats for date-only literals, use `CAST('yyyymmdd' AS DATE)` format + - Avoid treating dates like strings and avoid calculations on the left-hand side of the `WHERE` clause. More details [here](https://sqlblog.org/2009/10/16/bad-habits-to-kick-mis-handling-date-range-queries) + - Avoid using [hints](https://docs.microsoft.com/en-us/sql/t-sql/queries/hints-transact-sql) except `OPTION(RECOMPILE)` if needed. More details [here](https://www.red-gate.com/hub/product-learning/sql-prompt/sql-prompt-code-analysis-a-hint-is-used-pe004-7) + - Avoid use of `SELECT…INTO` for production code, use instead `CREATE TABLE` + `INSERT INTO …` approach. More details [here](https://www.red-gate.com/hub/product-learning/sql-prompt/use-selectinto-statement) + - Use only ISO standard JOINS syntaxes. The “old style” Microsoft/Sybase JOIN style for SQL, which uses the `=*` and `*= syntax, has been deprecated and is no longer used. Queries that use this syntax will fail when the database engine level is 10 (SQL Server 2008) or later (compatibility level 100). The ANSI-89 table citation list (FROM tableA, tableB) is still ISO standard for INNER JOINs only. Neither of these styles are worth using. It is always better to specify the type of join you require, INNER, LEFT OUTER, RIGHT OUTER, FULL OUTER and CROSS, which has been standard since ANSI SQL-92 was published. While you can choose any supported JOIN style, without affecting the query plan used by SQL Server, using the ANSI-standard syntax will make your code easier to understand, more consistent, and portable to other relational database systems. + More details [here](https://www.red-gate.com/hub/product-learning/sql-prompt/finding-code-smells-using-sql-prompt-old-style-join-syntax-st001) + - Do not use a scalar user-defined function (UDF) in a `JOIN` condition, `WHERE` search condition, or in a `SELECT` list, unless the function is [schema-bound](https://docs.microsoft.com/en-us/sql/t-sql/statements/create-function-transact-sql#best-practices). + More details [here](https://www.red-gate.com/hub/product-learning/sql-prompt/misuse-scalar-user-defined-function-constant-pe017) + - Use `EXISTS` or `NOT EXISTS` if referencing a subquery, and `IN` or `NOT IN` when have a list of literal values + More details [here](https://www.brentozar.com/archive/2018/08/a-common-query-error/) + - For concatenate strings: + - always using the upper-case `N`; + - always store into a variable of type `NVARCHAR(MAX)`; + - avoid truncation of string literals, simply ensure that one piece is converted to `NVARCHAR(MAX)`. + Example: `SET @NVCmaxVariable = CONVERT(NVARCHAR(MAX), N'anything') + N'something else' + N'another';` + More details [here](https://themondaymorningdba.wordpress.com/2018/09/13/them-concatenatin-blues/) + - Always specify a length to any text-based data type such as `NVARCHAR` or `VARCHAR`: `DECLARE @myGoodVariable VARCHAR(50);` and not `DECLARE @myBadVariable VARCHAR;`. + More details [here](https://www.red-gate.com/hub/product-learning/sql-prompt/using-a-variable-length-datatype-without-explicit-length-the-whys-and-wherefores) Example: ```sql +WITH CTE_MyCTE AS ( + SELECT t1.Value1 AS Val1 + , t1.Value2 AS Val2 + , t2.Value3 AS Val3 + INNER JOIN dbo.Table3 AS t2 + ON t1.Value1 = t2.Value1 + WHERE t1.Value1 > 1 + AND t2.Value2 >= 101 +) SELECT t1.Value1 AS Val1 , t1.Value2 AS Val2 , t2.Value3 AS Val3 INTO #Table3 - FROM dbo.Table1 AS t1 - INNER JOIN dbo.Table3 AS t2 - ON t1.Value1 = t2.Value1 - WHERE t1.Value1 > 1 - AND t2.Value2 >= 101 + FROM CTE_MyCTE AS t1 ORDER BY t2.Value2; ``` +**[⬆ back to top](#table-of-contents)** + + ### Stored procedures and functions programming style - - All stored procedures and functions should use ALTER statement and start with the object presence check - - ALTER statement should be preceded by 2 line breaks + - All stored procedures and functions should use `ALTER` statement and start with the object presence check + - `ALTER` statement should be preceded by 2 line breaks - Parameters name should be in **camelCase** - Parameters should be placed under procedure name divided by line breaks - - After the ALTER statement and before AS keyword should be placed a comment with execution example - - The procedure or function should begin with parameter check + - After the `ALTER` statement and before AS keyword should be placed a comment with execution example + - The procedure or function should begin with parameters check + - Create `sp_` procedures only in `master` database - SQL Server will always scan through the system catalog first - Always use `BEGIN TRY` and `BEGIN CATCH` - - Use `SET NOCOUNT ON` for stops the message that shows the count of the number of rows affected by a Transact-SQL statement + - Always use `/* */` instead in-line comment `--` + - Use `SET NOCOUNT ON;` for stops the message that shows the count of the number of rows affected by a Transact-SQL statement. More details [here](https://www.red-gate.com/hub/product-learning/sql-prompt/finding-code-smells-using-sql-prompt-set-nocount-problem-pe008-pe009) + - Do not use `SET NOCOUNT OFF;` (because it is default behavior) + - Use `RAISERROR` instead `PRINT` if you want to give feedback about the state of the currently executing SQL batch without lags. More details [here](http://sqlity.net/en/984/print-vs-raiserror/) and [here](http://sqlservercode.blogspot.com/2019/01/print-disruptor-of-batch-deletes-in-sql.html) + - Use `TOP` expression with `()`: +```tsql +-- Not working without () +DECLARE @n int = 1; +SELECT TOP@n name FROM sys.objects; +``` + - All code should be self documenting + - TSQL code, triggers, stored procedures, functions, should have a standard comment banner: +```tsql +summary: > + This procedure returns an object build script as a single-row, single column + result. +Revisions: + - Author: Bill Gates + Version: 1.1 + Modification: dealt properly with heaps + date: 2017-07-15 + - version: 1.2 + modification: Removed several bugs and got column-level constraints working + date: 2017-06-30 +example: + - code: udf_MyFunction 'testValsue'; +returns: > + single row, single column result Build_Script. +``` -Example: +**[⬆ back to top](#table-of-contents)** + +Stored Procedure Example: ```sql IF OBJECT_ID('dbo.usp_StoredProcedure', 'P') IS NULL @@ -92,6 +293,7 @@ GO ALTER PROCEDURE dbo.usp_StoredProcedure ( @parameterValue1 SMALLINT , @parameterValue2 NVARCHAR(300) + , @debug BIT = 0 ) /* EXECUTE dbo.usp_StoredProcedure @@ -100,6 +302,7 @@ EXECUTE dbo.usp_StoredProcedure */ AS SET NOCOUNT ON; + BEGIN TRY IF (@parameterValue1 < 0 OR @parameterValue2 NOT IN ('SIMPLE', 'BULK', 'FULL')) RAISERROR('Not valid data parameter!', 16, 1); @@ -116,31 +319,41 @@ BEGIN CATCH ', User name: ' + CONVERT(sysname, CURRENT_USER); PRINT ERROR_MESSAGE(); END CATCH; + GO ``` -## Offical Reference - - [Database object TECHNET] (Limitations) - - [User-Defined Functions MSDN] - - [Synonim TECHNET] - - [Primary and Foreign Key Constraints MSDN] - - [sys.objects MSDN] - - [Constraints TECHNET] - - [CHECK Constraint TECHNET] - - [SQL Server CLR Integration MSDN] - - [CLR Databse Objects MSDN] - - [User-defined Functions] - - [MSDN SET NOCOUNT ON](https://msdn.microsoft.com/en-us/library/ms189837.aspx) - -[Database object TECHNET]:http://technet.microsoft.com/en-us/library/ms172451%28v=sql.110%29.aspx -[User-Defined Functions MSDN]:http://msdn.microsoft.com/en-us/library/ms191007.aspx -[Synonim TECHNET]:http://technet.microsoft.com/en-us/library/ms187552(v=sql.110).aspx -[Primary and Foreign Key Constraints MSDN]:http://msdn.microsoft.com/en-us/library/ms179610.aspx -[sys.objects MSDN]:http://msdn.microsoft.com/en-us/library/ms190324.aspx -[Constraints TECHNET]:http://technet.microsoft.com/en-us/library/ms189862%28v=sql.105%29.aspx -[CHECK Constraint TECHNET]:http://technet.microsoft.com/en-us/library/ms188258%28v=sql.105%29.aspx -[SQL Server CLR Integration MSDN]:http://msdn.microsoft.com/en-us/library/ms254498%28v=vs.110%29.aspx -[CLR Databse Objects MSDN]:http://msdn.microsoft.com/en-us/library/ms345099%28SQL.100%29.aspx -[CLR Stored Procedures]:http://msdn.microsoft.com/en-us/library/ms131094%28v=sql.100%29.aspx -[User-defined Functions]:http://msdn.microsoft.com/en-us/library/ms191320.aspx +**[⬆ back to top](#table-of-contents)** + + + +## Official Reference and useful links + - [Transact-SQL Formatting Standards](https://www.simple-talk.com/sql/t-sql-programming/transact-sql-formatting-standards-%28coding-styles%29/) (by Robert Sheldon) + - [Subjectivity: Naming Standards](http://blogs.sqlsentry.com/aaronbertrand/subjectivity-naming-standards/) (by Aaron Bertrand) + - [General Database Conventions](http://kejser.org/database-naming-conventions/general-database-conventions/) (by Thomas Kejser) + - [Writing Readable SQL](http://www.codeproject.com/Articles/126380/Writing-Readable-SQL) (by Red Gate_) + - [SQL Style Guide](http://www.sqlstyle.guide/) (by Simon Holywell) + - [SQL Code Layout and Beautification](https://www.simple-talk.com/sql/t-sql-programming/sql-code-layout-and-beautification/) (by William Brewer) + - [TSQL Coding Style](http://www.databasejournal.com/features/mssql/tsql-coding-style.html) (by Gregory Larsen) + - [Database object Limitations](http://technet.microsoft.com/en-us/library/ms172451%28v=sql.110%29.aspx) + - [User-Defined Functions MSDN](http://msdn.microsoft.com/en-us/library/ms191007.aspx) + - [Synonim TECHNET](http://technet.microsoft.com/en-us/library/ms187552(v=sql.110).aspx) + - [Primary and Foreign Key Constraints MSDN](http://msdn.microsoft.com/en-us/library/ms179610.aspx) + - [sys.objects MSDN](http://msdn.microsoft.com/en-us/library/ms190324.aspx) + - [Constraints TECHNET](http://technet.microsoft.com/en-us/library/ms189862%28v=sql.105%29.aspx) + - [CHECK Constraint TECHNET](http://technet.microsoft.com/en-us/library/ms188258%28v=sql.105%29.aspx) + - [SQL Server CLR Integration MSDN](http://msdn.microsoft.com/en-us/library/ms254498%28v=vs.110%29.aspx) + - [CLR Databse Objects MSDN](http://msdn.microsoft.com/en-us/library/ms345099%28SQL.100%29.aspx) + - [CLR Stored Procedures](http://msdn.microsoft.com/en-us/library/ms131094%28v=sql.100%29.aspx) + - [User-defined Functions](http://msdn.microsoft.com/en-us/library/ms191320.aspx) + - [MSDN SET NOCOUNT ON](https://docs.microsoft.com/en-us/sql/t-sql/statements/set-nocount-transact-sql) + - [T-SQL Coding Guidelines Presentation](http://www.slideshare.net/chris1adkin/t-sql-coding-guidelines) (by Chris Adkin) + - [Sql Coding Style](http://c2.com/cgi/wiki?SqlCodingStyle) + - [SQL Server Code Review Checklist for Developers](https://www.sqlshack.com/sql-server-code-review-checklist-for-developers/) (by Samir Behara) + - [SQL Formatting standards – Capitalization, Indentation, Comments, Parenthesis](https://solutioncenter.apexsql.com/sql-formatting-standards-capitalization-indentation-comments-parenthesis/) (by ApexSQL) + - [In The Cloud: The Importance of Being Organized](http://sqlblog.com/blogs/john_paul_cook/archive/2017/05/16/in-the-cloud-the-importance-of-being-organized.aspx) + - [Naming Conventions in Azure](http://www.sqlchick.com/entries/2017/6/24/naming-conventions-in-azure) + - [The Basics of Good T-SQL Coding Style – Part 3: Querying and Manipulating Data](https://www.simple-talk.com/sql/t-sql-programming/basics-good-t-sql-coding-style-part-3-querying-manipulating-data/) + +**[⬆ back to top](#table-of-contents)** diff --git a/SQL Server People.md b/SQL Server People.md index 1a944ac6..9eee4ad0 100644 --- a/SQL Server People.md +++ b/SQL Server People.md @@ -1,53 +1,114 @@ # Microsoft SQL Server People Most valuable professionals in Microsoft SQL Server Database world -| Name | Site/Blog | City | Twitter | Email | MVP | MVP page | -|---------------------|----------------------------|-----------|-------------------|-----------------------------------|----:|------------------| -| Brent Ozar | [Brent Ozar Blog] | Las Vegas | [@BrentO] | help@brentozar.com | 7 | [Ozar MVP] | -| Adam Machanic | [SQLBlog] | Boston | [@AdamMachanic] | NULL | 12 | [Machanic MVP] | -| Ola Hallengren | [Ola Maintenance Solution] | NULL | [@olahallengren] | ola@hallengren.com | 3 | [Hallengren MVP] | -| Erland Sommarskog | [Sommarskog Blog] | NULL | NULL | esquel@sommarskog.se | 13 | [Sommarskog MVP] | -| Phil Factor | [Phil Simple-Talk] | NULL | [@phil_factor] | NULL | - | - | -| Robert Sheldon | [Robert Simple-Talk] | NULL | NULL | NULL | - | - | -| Glenn Alan Berry | [Glenn Blog] | NULL | [@GlennAlanBerry] | glenn@SQLskills.com | 9 | [Berry MVP] | -| Kenneth Fisher | [Kenneth Blog] | NULL | [@sqlstudent144] | sqlstudent144@gmail.com | - | - | -| Kendra Little | [Kendra Blog] | NULL | [@Kendra_Little] | NULL | 4 | [Little MVP] | -| Jeff Moden | [Jeff Articles] | NULL | NULL | NULL | 8 | [Moden MVP] | -| Paul White | [Paul SQLBlog] | NULL | [@SQL_Kiwi] | NULL | 5 | [White MVP] | -| Jason Strate | [Jason Blog] | NULL | [@StrateSQL] | NULL | 7 | [Strate MVP] | -| Jeremiah Peschka | [Jeremiah Blog] | NULL | [@peschkaj] | jeremiah.peschka@gmail.com | 5 | [Peschka MVP] | -| Gail Shaw | [Gail Blog] | NULL | [@SQLintheWild] | NULL | 8 | [Shaw MVP] | -| Aaron Bertrand | [Aaron Articles] | NULL | [@AaronBertrand] | NULL | 19 | [Bertrand MVP] | -| Kevin Kline | [Kevin Blog] | NULL | [@kekline] | kevin_e_kline@yahoo.com | 13 | [Kline MVP] | -| Robert Virag | [Robert Blog] | NULL | NULL | NULL | - | - | -| John Sansom | [John Blog] | NULL | [@SqlBrit] | NULL | - | - | -| Jes Borland | [Jes Articles] | NULL | [@grrl_geek] | NULL | 4 | [Borland MVP] | -| Sean Smith | [Sean Scripts] | NULL | NULL | NULL | - | - | -| Richie Rump | [Richie Blog] | NULL | [@Jorriss] | NULL | - | - | -| Tara Kizer | [Tara Articles] | NULL | [@TaraKizer] | NULL | 9 | [Kizer MVP] | -| Paul S. Randal | [Paul Articles] | NULL | [@PaulRandal] | paul@sqlskills.com | 8 | [Randal MVP] | -| Klaus Aschenbrenner | [Klaus Blog] | NULL | [@Aschenbrenner] | klaus.aschenbrenner@sqlpassion.at | - | - | -| Grant Fritchey | [Grant Blog] | NULL | [@GFritchey] | NULL | 7 | [Fritchey MVP] | -| Kendal Van Dyke | [KendaL Blog] | NULL | [@SQLDBA] | NULL | - | - | -| Tim Ford | [Tim Blog] | NULL | [@sqlagentman] | NULL | 7 | [Ford MVP] | -| Steve Jones | [Steve Jones Blog] | NULL | [@way0utwest] | NULL | 9 | [Jones MVP] | -| Thomas Larock | [Thomas Larock Blog] | NULL | [@sqlrockstar] | NULL | 7 | [LaRock MVP] | -| Mike Fal | [Mike Fal Blog] | NULL | [@Mike_Fal] | NULL | - | - | -| Derik Hammer | [Derik Hammer Blog] | NULL | [@drayhammer] | NULL | - | - | -| Chrissy LeMaire | [Chrissy LeMaire Blog] | NULL | [@cl] | NULL | 1 | [LeMaire MVP] | -| Tim Mitchell | [Tim Mitchell Blog] | NULL | [@Tim_Mitchell] | NULL | 7 | [Mitchell MVP] | -| Melissa Connors | [Melissa Connors Articles] | NULL | [@MelikaNoKaOi] | NULL | - | - | -| Ken Van Hyning | - | NULL | [@sqltoolsguy] | NULL | - | - | -| Itzik Ben-Gan | [Itzik Ben-Gan Blog] | NULL | [@ItzikBenGan] | NULL | 17 | [Ben-Gan MVP] | -| Ed Elliott | [Ed Elliott Blog] | London | [@EdDebug] | ed.elliott@outlook.com | - | - | -| Andy Yun | [Andy Yun Blog] | NULL | [@SQLBek] | NULL | - | - | +| Name | Site/Blog | Country | City | Twitter | Email | MVP | MVP page | +|---------------------|------------------------------|---------|------------------|--------------------|-----------------------------------|----:|--------------------| +| Lori Edwards | [Lori Edwards Blog] | USA | Tucson | [@loriedwards] | NULL | 0 | - | +| Dave Ballantyne | [Dave Ballantyne] | GBR | England | [@davebally] | NULL | 0 | - | +| Randolph West | [Randolph West Blog] | CAN | Calgary | [@rabryst] | NULL | 1 | [Randolph MVP] | +| Andrea Allred | [Andrea Allred Blog] | USA | Utah | [@royalsql] | NULL | 0 | - | +| John Morehouse | [John Morehouse Blog] | KY | Louisville | [@SqlrUs] | NULL | 0 | - | +| Ginger Grant | [Ginger Grant Blog] | USA | NULL | [@DesertIsleSQL] | NULL | 2 | [Grant MVP] | +| Mike Walsh | [Straight Path Solutions] | USA | New Hamphire | [@mike_walsh] | NULL | 7 | [Walsh MVP] | +| James Anderson | [James Anderson Blog] | GBR | Southampton | [@DatabaseAvenger] | NULL | 0 | - | +| James Serra | [James Serra Blog] | USA | Texas | [@JamesSerra] | NULL | 0 | - | +| Doug Lane | [Doug Lane Blog] | USA | Eastern Iowa | [@thedouglane] | NULL | 0 | - | +| Drew Furgiuele | [Drew Furgiuele Blog] | USA | Dublin | [@Pittfurg] | NULL | 0 | - | +| Cody Konior | [Cody Konior Blog] | AUS | Perth | [@codykonior] | NULL | 0 | - | +| Stephen Wynkoop | [Stephen Wynkoop Site] | USA | Tucson | [@swynk] | NULL | 0 | - | +| Brent Ozar | [Brent Ozar Blog] | USA | Chicago | [@BrentO] | help@brentozar.com | 7 | [Ozar MVP] | +| Adam Machanic | [SQLBlog] | USA | Boston | [@AdamMachanic] | NULL | 13 | [Machanic MVP] | +| Ola Hallengren | [Ola Maintenance Solution] | SWE | NULL | [@olahallengren] | ola@hallengren.com | 3 | [Hallengren MVP] | +| Erland Sommarskog | [Sommarskog Blog] | SWE | Stockholm | NULL | esquel@sommarskog.se | 14 | [Sommarskog MVP] | +| Phil Factor | [Phil Simple-Talk] | | NULL | [@phil_factor] | NULL | 0 | - | +| Robert Sheldon | [Robert Simple-Talk] | | NULL | NULL | NULL | 0 | - | +| Glenn Alan Berry | [Glenn Blog] | USA | Denwer | [@GlennAlanBerry] | glenn@SQLskills.com | 10 | [Berry MVP] | +| Kenneth Fisher | [Kenneth Blog] | | NULL | [@sqlstudent144] | sqlstudent144@gmail.com | 0 | - | +| Kendra Little | [Kendra Blog] | | NULL | [@Kendra_Little] | NULL | 4 | [Little MVP] | +| Jeff Moden | [Jeff Articles] | | NULL | NULL | NULL | 8 | [Moden MVP] | +| Paul White | [Paul SQLBlog] | NZL | Paraparaumu | [@SQL_Kiwi] | SQLkiwi@gmail.com | 5 | [White MVP] | +| Jason Strate | [Jason Blog] | | NULL | [@StrateSQL] | NULL | 7 | [Strate MVP] | +| Jeremiah Peschka | [Jeremiah Blog] | | NULL | [@peschkaj] | jeremiah.peschka@gmail.com | 5 | [Peschka MVP] | +| Gail Shaw | [Gail Blog] | ZAF | Johannesburg | [@SQLintheWild] | NULL | 8 | [Shaw MVP] | +| Aaron Bertrand | [Aaron Articles] | | NULL | [@AaronBertrand] | NULL | 20 | [Bertrand MVP] | +| Kevin Kline | [Kevin Blog] | | NULL | [@kekline] | kevin_e_kline@yahoo.com | 13 | [Kline MVP] | +| John Sansom | [John Blog] | | NULL | [@SqlBrit] | NULL | 0 | - | +| Jes Borland | [Jes Articles] | | NULL | [@grrl_geek] | NULL | 4 | [Borland MVP] | +| Sean Smith | [Sean Scripts] | | NULL | NULL | NULL | 0 | - | +| Richie Rump | [Richie Blog] | | NULL | [@Jorriss] | NULL | 0 | - | +| Tara Kizer | [Tara Articles] | USA | San Diego | [@TaraKizer] | NULL | 9 | [Kizer MVP] | +| Paul S. Randal | [Paul Articles] | | NULL | [@PaulRandal] | paul@sqlskills.com | 8 | [Randal MVP] | +| Klaus Aschenbrenner | [Klaus Blog] | | NULL | [@Aschenbrenner] | klaus.aschenbrenner@sqlpassion.at | 0 | - | +| Grant Fritchey | [Grant Blog] | | NULL | [@GFritchey] | NULL | 7 | [Fritchey MVP] | +| Kendal Van Dyke | [KendaL Blog] | | NULL | [@SQLDBA] | NULL | 0 | - | +| Tim Ford | [Tim Blog] | | NULL | [@sqlagentman] | NULL | 7 | [Ford MVP] | +| Steve Jones | [Steve Jones Blog] | | NULL | [@way0utwest] | NULL | 9 | [Jones MVP] | +| Thomas Larock | [Thomas Larock Blog] | | NULL | [@sqlrockstar] | NULL | 9 | [LaRock MVP] | +| Derik Hammer | [Derik Hammer Blog] | USA | Oklahoma | [@drayhammer] | NULL | 1 | [Derik MVP] | +| Chrissy LeMaire | [Chrissy LeMaire Blog] | | NULL | [@cl] | NULL | 1 | [LeMaire MVP] | +| Tim Mitchell | [Tim Mitchell Blog] | | NULL | [@Tim_Mitchell] | NULL | 7 | [Mitchell MVP] | +| Melissa Connors | [Melissa Connors Articles] | | NULL | [@MelikaNoKaOi] | NULL | 0 | - | +| Ken Van Hyning | - | | NULL | [@sqltoolsguy] | NULL | 0 | - | +| Itzik Ben-Gan | [Itzik Ben-Gan Blog] | | NULL | [@ItzikBenGan] | NULL | 17 | [Ben-Gan MVP] | +| Ed Elliott | [Ed Elliott Blog] | ENG | London | [@EdDebug] | ed.elliott@outlook.com | 0 | - | +| Andy Yun | [Andy Yun Blog] | | NULL | [@SQLBek] | NULL | 0 | - | +| Sander Stad | [Sander Stad Blog] | | NULL | [@SQLStad] | NULL | 0 | - | +| Guy Glantser | - | | NULL | [@guy_glantser] | NULL | 2 | [Glantser MVP] | +| Matan Yungman | - | ISR | Tel Aviv | [@MatanYungman] | NULL | 0 | [Yungman MVP] | +| Julie Koesmarno | [July Blog] | USA | Redmond | [@MsSQLGirl] | NULL | 0 | - | +| Michael J Swart | [Michael Blog] | CAN | Waterloo | [@MJSwart] | NULL | 5 | [Swart MVP] | +| Dmitry Pilugin | [Dmitry Blog] | RUS | Moscow | [@SomewereSomehow] | pilugin@inbox.ru | 4 | [Pilugin MVP] | +| Buck Woody | [Buck Blog] | | NULL | [@buckwoodymsft] | NULL | 0 | - | +| Steve Stedman | [Steve Stedman Blog] | USA | Austin | [@stedman] | NULL | 0 | - | +| Daniel Hutmacher | [Daniel Hutmacher Blog] | USA | Austin | [@dhmacher] | NULL | 0 | - | +| Niko Neugebauer | [Niko Blog] | PRT | NULL | [@NikoNeugebauer] | niko@nikoport.com | 6 | [Neugebauer MVP] | +| Mike Fal | [Mike Fal Blog] | USA | Denver | [@Mike_Fal] | NULL | 0 | - | +| Robert L Davis | [Robert Blog] | USA | New York | [@SQLSoldier] | NULL | 3 | [Davis MVP] | +| Chris Shaw | [Chris Shaw Blog] | USA | Colorado | [@SQLShaw] | NULL | 8 | [Shaw MVP] | +| Andy Mallon | [Andy Mallon Blog] | USA | Boston | [@AMtwo] | NULL | 0 | - | +| Remus Rusanu | [Remus Rusanu Blog] | USA | Seattle | [@rusanu] | NULL | 0 | - | +| Dan Guzman | [Dan Guzman Blog] | USA | St. Louis | NULL | NULL | 15 | [Guzman MVP] | +| Frank Gill | [Frank Gill Blog] | USA | Chicago | [@skreebydba] | NULL | 0 | - | +| Mohammad Darab | [Mohammad Darab Blog] | USA | Washington | [@mwdarab] | NULL | 0 | - | +| Kimberly Tripp | [Kimberly Tripp Articles] | USA | Redmond | [@KimberlyLTripp] | NULL | 13 | [Kimberly MVP] | +| Raul Gonzalez | [Raul Gonzalez Blog] | | NULL | [@SQLDoubleG] | NULL | 0 | - | +| Rob Sewell | [Rob Sewell Blog] | GBR | Somerset | [@sqldbawithbeard] | NULL | 1 | [Swell MVP] | +| Jonathan Kehayias | [Jonathan Kehayias Articles] | USA | Tampa | [@SQLPoolBoy] | NULL | 9 | [Kehayias MVP] | +| Thomas Kejser | [Thomas Kejser Blog] | DNK | NULL | NULL | thomas@kejser.org | 0 | - | +| Patrick Keisler | [Patrick Keisler Blog] | USA | New York | [@patrickkeisler] | NULL | 0 | - | +| Markus Winand | [Markus Winand Blog] | AUT | Vienna | [@MarkusWinand] | NULL | 0 | - | +| Kevin Feasel | [Kevin Feasel Blog] | USA | Durham | [@feaselkl] | NULL | 2 | [Feasel MVP] | +| Wayne Sheffield | [Wayne Sheffield Blog] | USA | Richmond | [@DBAWayne] | NULL | 1 | [Sheffield MVP] | +| Ewald Cress | [Ewald Cress Blog] | | NULL | [@sqlOnIce] | NULL | 0 | | +| Dmitri Korotkevitch | [Dmitri Korotkevitch Blog] | USA | Tampa | [@aboutsqlserver] | dk@aboutsqlserver.com | 6 | [Korotkevitch MVP] | +| Bert Wagner | [Bert Wagner Blog] | | NULL | [@bertwagner] | NULL | 0 | | +| Erik Darling | [Erik Darling Articles] | USA | NULL | NULL | NULL | 0 | | +| Thomas Rushton | [Thomas Rushton Blog] | USA | NULL | NULL | NULL | 0 | | +| Solomon Rutzky | [Sql Quantum Leap] | USA | Raleigh | [@SqlQuantumLeap] | [Contact Solomon Rutzky][1] | 0 | | +| Ned Otter | [Ned Otter Blog] | USA | New York | [@NedOtter] | [Contact Ned Otter][2] | 0 | | +| Joe Obbish | [Joe Obbish Blog] | | NULL | NULL | NULL | 0 | | +| Stephen Bennett | [Stephen Bennett Blog] | ENG | London | NULL | NULL | 0 | | +| Brian Davis | [Brian Davis Articles] | USA | NULL | [@brian78] | NULL | 0 | | +[Stephen Wynkoop Site]:https://www.sswug.org/ +[Cody Konior Blog]:https://www.codykonior.com/categories/#sql +[Drew Furgiuele Blog]:http://port1433.com/ +[Doug Lane Blog]:http://www.douglane.net/blog/ +[James Serra Blog]:http://www.jamesserra.com/ +[James Anderson Blog]:http://thedatabaseavenger.com/ +[Straight Path Solutions]:https://straightpathsql.com/ +[Ginger Grant Blog]:http://www.desertislesql.com/wordpress1/ +[John Morehouse Blog]:http://sqlrus.com/ +[Andrea Allred Blog]:https://royalsql.com/ +[Randolph West Blog]:https://rabryst.ca/ +[Dave Ballantyne]:clearskysql.co.uk/ +[Lori Edwards Blog]:https://blogs.sentryone.com/author/LoriEdwards/ [Brent Ozar Blog]:http://www.brentozar.com/ -[SQLBlog]:http://sqlblog.com +[SQLBlog]:http://sqlblog.com/ [Ola Maintenance Solution]:https://ola.hallengren.com/ [Sommarskog Blog]:http://www.sommarskog.se/ -[Phil Simple-Talk]:https://www.simple-talk.com/author/phil-factor/ +[Phil Simple-Talk]:https://www.red-gate.com/simple-talk/author/phil-factor/ [Robert Simple-Talk]:https://www.simple-talk.com/author/robert-sheldon/ [Glenn Blog]:https://sqlserverperformance.wordpress.com/ [Kenneth Blog]:http://sqlstudies.com/ @@ -78,9 +139,59 @@ Most valuable professionals in Microsoft SQL Server Database world [Tim Mitchell Blog]:https://www.timmitchell.net [Melissa Connors Articles]:http://blogs.sqlsentry.com/author/melissaconnors/ [Itzik Ben-Gan Blog]:http://tsql.solidq.com/ -[Ed Elliott Blog]:https://the.agilesql.club/Blogs/Ed-Elliott/About +[Ed Elliott Blog]:https://the.agilesql.club/Blogs/Ed-Elliott/ [Andy Yun Blog]:https://sqlbek.wordpress.com +[Sander Stad Blog]:http://www.sqlstad.nl +[July Blog]:http://www.mssqlgirl.com/ +[Michael Blog]:http://michaeljswart.com/ +[Dmitry Blog]:http://www.queryprocessor.com/ +[Buck Blog]:https://thelonedba.wordpress.com/ +[Steve Stedman Blog]:http://stevestedman.com +[Daniel Hutmacher Blog]:https://sqlsunday.com +[Niko Blog]:http://www.nikoport.com +[Robert Blog]:http://www.sqlsoldier.com/wp/ +[Chris Shaw Blog]:https://chrisshaw.wordpress.com +[Andy Mallon Blog]:http://www.am2.co/ +[Remus Rusanu Blog]:http://rusanu.com/ +[Dan Guzman Blog]:http://www.dbdelta.com/ +[Frank Gill Blog]:https://skreebydba.com/ +[Mohammad Darab Blog]:https://mohammaddarab.com/blog/ +[Kimberly Tripp Articles]:https://www.sqlskills.com/blogs/kimberly/ +[Raul Gonzalez Blog]:http://www.sqldoubleg.com +[Rob Sewell Blog]:https://sqldbawithabeard.com/ +[Jonathan Kehayias Articles]:https://www.sqlskills.com/blogs/jonathan/ +[Niko Blog]:http://www.nikoport.com +[Thomas Kejser Blog]:http://kejser.org/ +[Patrick Keisler Blog]:http://www.patrickkeisler.com +[Markus Winand Blog]:http://use-the-index-luke.com +[Kevin Feasel Blog]:https://36chambers.wordpress.com/ +[Wayne Sheffield Blog]:http://blog.waynesheffield.com/ +[Ewald Cress Blog]:http://sqlonice.com +[Dmitri Korotkevitch Blog]:http://aboutsqlserver.com/ +[Bert Wagner Blog]:https://blog.bertwagner.com/ +[Erik Darling Articles]:https://www.brentozar.com/archive/author/erik-darling/ +[Thomas Rushton Blog]:https://thelonedba.wordpress.com/ +[Sql Quantum Leap]:https://SqlQuantumLeap.com/ +[1]:https://SqlQuantumLeap.com/contact/ +[Ned Otter Blog]:http://nedotter.com/ +[2]:http://nedotter.com/contact/ +[Joe Obbish Blog]:https://orderbyselectnull.com/ +[Stephen Bennett Blog]:https://sqlnotesfromtheunderground.wordpress.com/ +[Brian Davis Articles]:https://blogs.sentryone.com/author/briandavis/ +[@swynk]:https://twitter.com/swynk +[@codykonior]:https://twitter.com/codykonior +[@Pittfurg]:https://twitter.com/pittfurg +[@thedouglane]:https://twitter.com/thedouglane +[@JamesSerra]:https://twitter.com/jamesserra +[@DatabaseAvenger]:https://twitter.com/databaseavenger +[@mike_walsh]:https://twitter.com/mike_walsh +[@DesertIsleSQL]:https://twitter.com/desertislesql +[@SqlrUs]:https://twitter.com/sqlrus +[@RoyalSQL]:https://twitter.com/royalsql +[@rabryst]:https://twitter.com/rabryst +[@davebally]:https://twitter.com/davebally +[@loriedwards]:https://twitter.com/loriedwards [@BrentO]:https://twitter.com/BrentO [@AdamMachanic]:https://twitter.com/AdamMachanic [@olahallengren]:https://twitter.com/olahallengren @@ -113,7 +224,43 @@ Most valuable professionals in Microsoft SQL Server Database world [@sqltoolsguy]:https://twitter.com/sqltoolsguy [@ItzikBenGan]:https://twitter.com/ItzikBenGan [@EdDebug]:https://twitter.com/EdDebug +[@SQLBek]:https://twitter.com/SQLBek +[@SQLStad]:https://twitter.com/SQLStad +[@guy_glantser]:https://twitter.com/guy_glantser +[@MatanYungman]:https://twitter.com/MatanYungman +[@MsSQLGirl]:https://twitter.com/MsSQLGirl +[@MJSwart]:https://twitter.com/MJSwart +[@SomewereSomehow]:https://twitter.com/SomewereSomehow +[@buckwoodymsft]:https://twitter.com/buckwoodymsft +[@stedman]:https://twitter.com/stedman +[@dhmacher]:https://twitter.com/dhmacher +[@NikoNeugebauer]:https://twitter.com/NikoNeugebauer +[@SQLSoldier]:https://twitter.com/SQLSoldier +[@SQLShaw]:https://twitter.com/SQLShaw +[@AMtwo]:https://twitter.com/AMtwo +[@rusanu]:https://twitter.com/rusanu +[@skreebydba]:https://twitter.com/skreebydba +[@mwdarab]:https://twitter.com/ +[@KimberlyLTripp]:https://twitter.com/KimberlyLTripp +[@SQLDoubleG]:https://twitter.com/SQLDoubleG +[@sqldbawithbeard]:https://twitter.com/@sqldbawithbeard +[@SQLPoolBoy]:https://twitter.com/SQLPoolBoy +[@NikoNeugebauer]:https://twitter.com/NikoNeugebauer +[@patrickkeisler]:https://twitter.com/patrickkeisler +[@MarkusWinand]:https://twitter.com/MarkusWinand +[@feaselkl]:https://twitter.com/feaselkl +[@DBAWayne]:https://twitter.com/DBAWayne +[@sqlOnIce]:https://twitter.com/sqlOnIce +[@aboutsqlserver]:https://twitter.com/aboutsqlserver +[@bertwagner]:https://twitter.com/bertwagner +[@SqlQuantumLeap]:https://twitter.com/SqlQuantumLeap +[@NedOtter]:https://twitter.com/NedOtter +[@brian78]:https://twitter.com/brian78 +[Swell MVP]:https://mvp.microsoft.com/en-us/PublicProfile/5002693?fullName=Rob%20%20Sewell +[Walsh MVP]:https://mvp.microsoft.com/en-us/PublicProfile/4032569?fullName=Mike%20%20Walsh +[Grant MVP]:https://mvp.microsoft.com/en-us/PublicProfile/5001878?fullName=Ginger%20%20Grant +[Randolph MVP]:https://mvp.microsoft.com/en-us/PublicProfile/5002351?fullName=Randolph%20%20West [Ozar MVP]:https://mvp.microsoft.com/en-us/PublicProfile/4025575?fullName=Brent%20%20Ozar [Machanic MVP]:https://mvp.microsoft.com/en-us/PublicProfile/10761?fullName=Adam%20%20Machanic [Hallengren MVP]:https://mvp.microsoft.com/en-us/PublicProfile/5000459?fullName=Ola%20%20Hallengren @@ -133,7 +280,21 @@ Most valuable professionals in Microsoft SQL Server Database world [Fritchey MVP]:https://mvp.microsoft.com/en-us/PublicProfile/4025126?fullName=Grant%20%20Fritchey [Ford MVP]:https://mvp.microsoft.com/en-us/PublicProfile/4025585?fullName=Timothy%20%20Ford [Jones MVP]:https://mvp.microsoft.com/en-us/PublicProfile/4014238?fullName=Steve%20%20Jones +[Derik MVP]:https://mvp.microsoft.com/en-us/PublicProfile/5002574?fullName=Derik%20%20Hammer [LaRock MVP]:https://mvp.microsoft.com/en-us/PublicProfile/4025219?fullName=Thomas%20%20LaRock [LeMaire MVP]:https://mvp.microsoft.com/en-us/PublicProfile/5001321?fullName=Chrissy%20%20LeMaire [Mitchell MVP]:https://mvp.microsoft.com/en-us/PublicProfile/4027186?fullName=Tim%20%20Mitchell [Ben-Gan MVP]:https://mvp.microsoft.com/en-us/PublicProfile/6819?fullName=Itzik%20%20Ben-Gan +[Glantser MVP]:https://mvp.microsoft.com/en-us/PublicProfile/5001253?fullName=Guy%20%20Glantser +[Yungman MVP]:https://mvp.microsoft.com/en-us/PublicProfile/5001675?fullName=Matan%20%20Yungman +[Swart MVP]:https://mvp.microsoft.com/en-us/PublicProfile/4038219?fullName=Michael%20J%20Swart +[Pilugin MVP]:https://mvp.microsoft.com/en-us/PublicProfile/5000995?fullName=Dmitry%20%20Pilugin +[Davis MVP]:https://mvp.microsoft.com/en-us/PublicProfile/5000945?fullName=Robert%20L%20Davis +[Shaw MVP]:https://mvp.microsoft.com/en-us/PublicProfile/4025121?fullName=Chris%20%20Shaw +[Guzman MVP]:https://mvp.microsoft.com/en-us/PublicProfile/5439?fullName=Dan%20%20Guzman +[Kimberly MVP]:https://mvp.microsoft.com/en-us/PublicProfile/8566?fullName=Kimberly%20L.%20Tripp +[Kehayias MVP]:https://mvp.microsoft.com/en-us/PublicProfile/4021854?fullName=Jonathan%20Matthew%20Kehayias +[Neugebauer MVP]:https://mvp.microsoft.com/en-us/PublicProfile/4033494?fullName=Niko%20%20Neugebauer +[Feasel MVP]:https://mvp.microsoft.com/en-us/PublicProfile/5001922?fullName=Kevin%20%20Feasel +[Sheffield MVP]:https://mvp.microsoft.com/en-us/PublicProfile/5002585?fullName=Wayne%20%20Sheffield +[Korotkevitch MVP]:https://mvp.microsoft.com/en-us/PublicProfile/4039717?fullName=Dmitri%20%20Korotkevitch diff --git a/SQL Server Trace Flag.md b/SQL Server Trace Flag.md index 00bba4dc..1ad41d2a 100644 --- a/SQL Server Trace Flag.md +++ b/SQL Server Trace Flag.md @@ -1,51 +1,122 @@ # Microsoft SQL Server Trace Flags -Complete list of Microsoft SQL Server trace flags (300 trace flags). +Detailed list of all (documented and undocumented) Microsoft SQL Server trace flags (**593** trace flags). + +⚠ **REMEMBER: Be extremely careful with trace flags, test in your development environment first. +And consult professionals first if you are the slightest uncertain about the effects of your changes.** + +⚠ **Some trace flags were introduced in specific SQL Server versions. +For more information on the applicable version, see the Microsoft Support article associated with a specific trace flag.** + +⚠ **Trace flag behavior may not be supported in future releases of SQL Server.** Headers: + - [Unknown trace flags](#unknown-trace-flags") - [What are Microsoft SQL Server Trace Flags?](#what-are-microsoft-sql-server-trace-flags) - [How do I turn Trace Flags on and off?](#how-do-i-turn-trace-flags-on-and-off) - [How do I know what Trace Flags are turned on at the moment?](#how-do-i-know-what-trace-flags-are-turned-on-at-the-moment) - [What Are the Optimizer Rules?](#what-are-the-optimizer-rules) + - [Recommended Trace Flags](#recommended-trace-flags) - [Trace flags list](#trace-flags-list) Source links: + - [A Topical Collection of SQL Server Flags](https://sqlcrossjoin.wordpress.com/2013/10/28/a-topical-collection-of-sql-server-flags/) (by Aaron Morelli) - [Steinar Andersen great post](http://www.sqlservice.se/updated-microsoft-sql-server-trace-flag-list/) - [Yusuf Anis trace flag table](http://www.sqlservercentral.com/articles/trace+flags/70131/) - - MSDN TF list: http://sqlserverpedia.com/wiki/Trace_Flags - - Albert van der Sel TF list: http://antapex.org/traceflags_sqlserver.txt - - Technet Wiki TF list: http://social.technet.microsoft.com/wiki/contents/articles/13105.trace-flags-in-sql-server.aspx - - Amit Banerjee TF list: http://troubleshootingsql.com/2012/07/01/sql-server-2008-trace-flags/ - - Paul Randal discussing TF Pro’s and Con’s: http://www.sqlskills.com/blogs/paul/the-pros-and-cons-of-trace-flags/ - - **Some trace flags needs to be specified with "t" rather than with "T" in startup options!**: http://technet.microsoft.com/en-us/library/ms190737(v=sql.110).aspx + - [Docs Trace Flags] + - [Albert van der Sel TF list](http://antapex.org/traceflags_sqlserver.txt) + - [TECHNET List Of SQL Server Trace Flags] + - [Amit Banerjee TF list](http://troubleshootingsql.com/2012/07/01/sql-server-2008-trace-flags/) + - [Paul Randal discussing TF Pro’s and Con’s](http://www.sqlskills.com/blogs/paul/the-pros-and-cons-of-trace-flags/) + - **When specifying a trace flag with the -T option, use an uppercase "T" to pass the trace flag number. +A lowercase "t" is accepted by SQL Server, but this sets other internal trace flags that are required only by SQL Server support engineers. +(Parameters specified in the Control Panel startup window are not read.)**: https://technet.microsoft.com/en-us/en-en/library/ms190737%28v=sql.120%29.aspx - [Enabling SQL Server Trace Flag for a Poor Performing Query Using QUERYTRACEON](https://www.mssqltips.com/sqlservertip/3320/enabling-sql-server-trace-flag-for-a-poor-performing-query-using-querytraceon/) - [Disabling SQL Server Optimizer Rules with QUERYRULEOFF](https://www.mssqltips.com/sqlservertip/4175/disabling-sql-server-optimizer-rules-with-queryruleoff/) - -**Thanks to:** - - Steinar Andersen - - Brent Ozar + - [SQLskills SQL101: Trace Flags](https://www.sqlskills.com/blogs/erin/sqlskills-101-trace-flags/) + - [Derik Hammer - Trace Flag Recommendation](http://www.sqlhammer.com/deriks-favorite-trace-flags/) + - [Brent Ozar - Bad Idea Jeans: Finding Undocumented Trace Flags](https://rebrand.ly/brent-finding-undocumented-trace-flags) + - [Joe Obbish - A Method to Find Trace Flags](https://rebrand.ly/joe-finding-undocumented-trace-flags) + +**Great thanks to:** + - Aaron Morelli ([b](https://sqlcrossjoin.wordpress.com) | [@sqlcrossjoin](https://twitter.com/sqlcrossjoin)) + - Steinar Andersen ([b](http://www.sqlservice.se/) | [@SQLSteinar](https://twitter.com/SQLSteinar)) + - Brent Ozar ([b](https://www.brentozar.com/) | [@BrentO](https://twitter.com/BrentO)) - Yusuf Anis - Lars Utterström - Martin Höglund - Håkan Winther - Toine Rozemeijer - - Robert L Davis aka @sqlsoldier - - sql_handle aka @sql_handle + - Robert L Davis ([b](http://www.sqlsoldier.com/wp/) | [@SQLSoldier](https://twitter.com/SQLSoldier)) + - Lonny Niederstadt ([b](http://sql-sasquatch.blogspot.ru/) | [@sql_handle](https://twitter.com/@sql_handle)) - Andrzej Kukuła - - -## What are Microsoft SQL Server Trace Flags? -Trace Flags are settings that in some way or another alters the behavior of various SQL Server functions: https://msdn.microsoft.com/en-us/library/ms188396.aspx - - -## How do I turn Trace Flags on and off? - - You can use the [DBCC TRACEON](https://msdn.microsoft.com/en-us/library/ms187329.aspx "Official MSDN DBCC TRACEON Article") and [DBCC TRACEOFF](https://msdn.microsoft.com/en-us/library/ms174401.aspx "Official MSDN DBCC TRACEOFF Article") commands - - You can use the [-T option](https://technet.microsoft.com/en-us/library/ms190737%28v=sql.120%29.aspx "Official TECHNET Database Engine Service Startup Options Article") in the startup configuration for the SQL Server Service. - **When specifying a trace flag with the -T option, use an uppercase "T" to pass the trace flag number. A lowercase "t" is accepted by SQL Server, but this sets other internal trace flags that are required only by SQL Server support engineers. (Parameters specified in the Control Panel startup window are not read.)** - - You can also use the hint [QUERYTRACEON](https://support.microsoft.com/en-us/kb/2801413 "Official QUERYTRACEON KB Article") in your queries: **<querytraceon_hint ::= {QUERYTRACEON trace_flag_number}>** - - -## How do I know what Trace Flags are turned on at the moment? -You can use the [DBCC TRACESTATUS](https://msdn.microsoft.com/en-us/library/ms187809.aspx "Official MSDN link") command + - Alexander Titenko ([gtihub](https://github.com/AlexTitenko)) + - Albert van der Sel + - Amit Banerjee + - Erin Stellato ([b](http://www.sqlskills.com/blogs/erin/) | [@erinstellato](https://twitter.com/erinstellato)) + - Darik Hammer ([b](http://www.sqlhammer.com/) | [@drayhammer](https://twitter.com/drayhammer)) + - Erik Darling ([b](https://www.brentozar.com/archive/author/erik-darling/)) + - Joe Obbish ([b](https://orderbyselectnull.com/)) + - Glenn Berry ([b](https://sqlserverperformance.wordpress.com/) | [t](https://twitter.com/GlennAlanBerry)) + - Pedro Lopes ([b](https://social.msdn.microsoft.com/profile/Pedro+Lopes+%28PL%29) | [t](https://twitter.com/sqlpto)) + - Paul White ([b](http://sqlblog.com/blogs/paul_white/) | [t](https://twitter.com/SQL_Kiwi)) + - Alexey Nagorskiy ([github](https://github.com/fenixfx)) + - Niko Neugebauer ([b](http://www.nikoport.com/) | [t](https://twitter.com/@NikoNeugebauer)) + - Solomon Rutzky ([b](https://SqlQuantumLeap.com/) | [t](https://twitter.com/@SqlQuantumLeap)) + - Jason Brimhall ([b](http://jasonbrimhall.info/) | [t](https://twitter.com/sqlrnnr)) + - Victor Isakov ([b](https://victorisakov.wordpress.com/)) + - Scott Caldwell ([b](https://blog.rdx.com/) | [t](https://twitter.com/sqldroid)) + - Mike Fal ([b](http://www.mikefal.net) | [t](https://twitter.com/Mike_Fal)) + - Prince Kumar Rastogi ([b](http://www.sqlservergeeks.com/) | [t](https://twitter.com/princerastogi2)) + - Kendra Little ([b](http://www.littlekendra.com/) | [t](https://twitter.com/Kendra_Little)) + - Slava Oks ([t](https://twitter.com/slava_oks/)) + - John Sterrett ([b](https://www.procuresql.com/)) + - Pavel Málek ([t](https://twitter.com/malekpav)) + + + +## Unknown trace flags +List of Unknown trace flags enabled on default Azure SQL Server instances, see more details here: [Azure SQL DB Managed Instances: Trace Flags, Ahoy!](https://www.brentozar.com/archive/2018/03/azure-sql-db-managed-instances-trace-flags-ahoy/) +If you know behavior some of them please open an issue or contact me (taranov.pro). + + - [ ] 2591 + - [ ] 3447 (but 3448 is there, which is supposed to help fix an issue with hung Mirrored databases) + - [ ] 3978 + - [ ] 4141 + - [ ] 5521 + - [ ] 7838 + - [ ] 8037 + - [ ] 8054 + - [ ] 8057 + - [ ] 8063 + - [ ] 8065 + - [ ] 9041 + - [ ] 9537 + - [ ] 9570 + - [ ] 9883 + - [ ] 9905 + - [ ] 9934 + - [ ] 9940 + - [ ] 9941 + + + +## What are Microsoft SQL Server Trace Flags? +Trace Flags are settings that in some way or another alters the behavior of various SQL Server functions: [Docs Trace Flags] + + + +## How do I turn Trace Flags on and off? + - You can use the [DBCC TRACEON] and [DBCC TRACEOFF] commands + - You can use the [-T option](https://docs.microsoft.com/sql/database-engine/configure-windows/database-engine-service-startup-options "Official Microsoft Docs Database Engine Service Startup Options Article") in the startup configuration for the SQL Server Service. + **When specifying a trace flag with the `-T` option, use an uppercase `"T"` to pass the trace flag number. A lowercase `"t"` is accepted by SQL Server, but this sets other internal trace flags that are required only by SQL Server support engineers. (Parameters specified in the Control Panel startup window are not read.)** + - You can also use the hint [QUERYTRACEON](https://support.microsoft.com/help/2801413 "Official QUERYTRACEON KB Article") in your queries: **<querytraceon_hint ::= {QUERYTRACEON trace_flag_number}>** + + + +## How do I know what Trace Flags are turned on at the moment? +From SSMS 16 every sql plan content information about trace flags in section `Trace flags` + +You can use the [DBCC TRACESTATUS](https://docs.microsoft.com/sql/t-sql/database-console-commands/dbcc-tracestatus-transact-sql "Microsoft Docs DBCC TRACESTATUS") command The following example displays the status of all trace flags that are currently enabled globally: ```sql @@ -72,23 +143,27 @@ GO ``` -## What Are the Optimizer Rules? -We all know that every time SQL Server executes a query it builds an execution plan that translates the logical operations like joins and predicates into physical operations that are implemented in the SQL Server source code. That conversion is based on certain rules known as the Optimizer Rules. They define for example how to perform an INNER JOIN. When we write a simple select statement with an inner join, the query optimizer chooses based on statistics, indexes and enabled rules if the join is executed as a Merge Join, Nested Loop or a Hash Join and also if the join can use the commutative property of joins. Mathematically A join B is equal to B join A, but the computational cost generally is not the same. + +## What Are the Optimizer Rules? +We all know that every time SQL Server executes a query it builds an execution plan that translates the logical operations like joins and predicates into physical operations that are implemented in the SQL Server source code. +That conversion is based on certain rules known as the Optimizer Rules. They define for example how to perform an INNER JOIN. +When we write a simple select statement with an inner join, the query optimizer chooses based on statistics, indexes and enabled rules if the join is executed as a Merge Join, Nested Loop or a Hash Join and also if the join can use the commutative property of joins. Mathematically A join B is equal to B join A, but the computational cost generally is not the same. ### Getting the List of Available Rules -To obtain the list of rules of your version of SQL Server we must use the undocumented DBCC commands SHOWONRULES and SHOWOFFRULES. Those commands display the enabled and disabled rules for the whole instance respectively. As you may guess, the number of rules varies amongst versions. +To obtain the list of rules of your version of SQL Server we must use the undocumented DBCC commands SHOWONRULES and SHOWOFFRULES. +Those commands display the enabled and disabled rules for the whole instance respectively. As you may guess, the number of rules varies amongst versions. ```sql -USE master +USE master; GO -DBCC TRACEON(3604) +DBCC TRACEON(3604); GO -DBCC SHOWONRULES +DBCC SHOWONRULES; GO -DBCC SHOWOFFRULES +DBCC SHOWOFFRULES; GO ``` @@ -102,1611 +177,4820 @@ GO | LASJNtoSM | Left Anti Semi Join to Sort Merge | -**REMEMBER: Be extremely careful with trace flags, test in your test environment first. And consult professionals first if you are the slightest uncertain about the effects of your changes.** + +## Recommended Trace Flags + + - [Trace Flag 272](#272) (for SQL Server 2012) + - [Trace Flag 460](#460) (for SQL Server 2019, >= 2017 CU12) + - [Trace Flag 1118](#1118) (for versions < SQL Server 2016) + - [Trace Flag 3023](#3023) (for versions < SQL Server 2014) + - [Trace Flag 3226](#3226) (for all versions) + - [Trace Flag 3427](#3427) (for SQL Server 2016) + - [Trace Flag 3449](#3449) (for versions SQL Server 2012 SP3 CU3 or later or SQL Server 2014 SP1 CU7 or later) + - [Trace Flag 6534](#6534) (for versions SQL Server 2012, 2014, 2016) (if use [spatial data types](https://docs.microsoft.com/sql/relational-databases/spatial/spatial-data-sql-server)) + - [Trace Flag 7412](#7412) (for versions >= SQL Server 2016) + - [Trace Flag 7745](#7745) (for versions >= SQL Server 2016) + - [Trace Flag 7752](#7752) (for versions >= SQL Server 2016) + - [Trace Flag 7806](#7806) (for SQL Server Express Edition) + +**Trace Flag 272** prevents identity gap after restarting SQL Server 2012 instance, critical for columns with identity and `tinyint` and `smallint` data types. +(Demo for repeating this issue [here](https://github.com/ktaranov/sqlserver-kit/Errors/Identity_gap_sql_server_2012.sql)) + +**Trace Flag 460** Replace error message [8152] with [2628] (`String or binary data would be truncated. The statement has been terminated.`). +Description for [2628] mesage has useful information - which column had the truncation and which row.
+ +**Trace flag 1118** addresses contention that can exist on a particular type of page in a database, the SGAM page. +This trace flag typically provides benefit for customers that make heavy use of the tempdb system database. +In SQL Server 2016, you change this behavior using the `MIXED_PAGE_ALLOCATION` database option, and there is no need for TF 1118. + +**Trace flag 3023** is used to enable the CHECKSUM option, by default, for all backups taken on an instance. +With this option enabled, page checksums are validated during a backup, and a checksum for the entire backup is generated. +Starting in SQL Server 2014, this option can be set instance-wide through `sp_configure ('backup checksum default')`. + +**Trace flag 3226** prevents the writing of successful backup messages to the SQL Server ERRORLOG. +Information about successful backups is still written to `msdb` and can be queried using T-SQL. +For servers with multiple databases and regular transaction log backups, enabling this option means the ERRORLOG is no longer bloated with BACKUP DATABASE and Database backed up messages. +As a DBA, this is a good thing because when I look in my ERRORLOG, I really only want to see errors, I don’t want to scroll through hundreds or thousands of entries about successful backups. +**Trace flag 3427** Another change in SQL Server 2016 behavior that could impact tempdb-heavy workloads has to do with Common Criteria Compliance (CCC), also known as C2 auditing. +We introduced functionality to allow for transaction-level auditing in CCC which can cause some additional overhead, particularly in workloads that do heavy inserts and updates in temp tables. +Unfortunately, this overhead is incurred whether you have CCC enabled or not. In SQL Server 2016 you can enable trace flag 3427 to bypass this overhead starting with SP1 CU2. Starting in SQL Server 2017 CU4, we automatically bypass this code if CCC is disabled. -## Trace flags list -Summary: 300 trace flags +**Trace flag 3449** (and you are on SQL Server 2012 SP3 CU3 or later or SQL Server 2014 SP1 CU7 or later), +will get much better performance by avoiding a FlushCache call in a number of different common scenarios, such as backup database, +backup transaction log, create database, add a file to a database, restore a transaction log, recover a database, shrink a database file, and a SQL Server “graceful” shutdown. -**Trace Flag: -1**
-Function: Sets trace flags for all client connections, rather than for a single client connection. Because trace flags set using the -T command-line option automatically apply to all connections, this trace flag is used only when setting trace flags using DBCC TRACEON and DBCC TRACEOFF.
+**Trace flag 6534** enables performance improvement of query operations with spatial data types in SQL Server 2012, SQL Server 2014 and SQL Server 2016. +The performance gain will vary, depending on the configuration, the types of queries, and the objects. + +**Trace flag 7412** enables the lightweight query execution statistics profiling infrastructure. +Unless your server is already CPU bound, like you’re running all the time with 95% CPU, unless you are at that point, turn on this trace flag at any server you have. +This would be my advice here because this enables that lightweight profiling infrastructure there and then you’ll see in a few minutes what it unleashes here. +So one thing that happens when I enable the lightweight profiling is that the sys.dm_exec_query_profiles DMV, which is something that actually populates the live query stats ability or feature of SSMS, now also is also populated with this lightweight profiling, which means that for all essence, we are now able to run a live query stats on all fashions at any given point in time, and this is extremely useful for let’s say a production DBA that someone calls and says, “Hey, you have a problem. +To tap into running system and look at what it’s doing.” + +**Trace flag 7745** forces Query Store to not flush data to disk on database shutdown. +Using this trace may cause Query Store data not previously flushed to disk to be lost in case of shutdown. +For a SQL Server shutdown, the command SHUTDOWN WITH NOWAIT can be used instead of this trace flag to force an immediate shutdown. + +**Trace Flag: 7752** enables asynchronous load of Query Store. +Use this trace flag if SQL Server is experiencing high number of [QDS_LOADDB](https://www.sqlskills.com/help/waits/qds_loaddb/) waits related to Query Store synchronous load (default behavior). + +**Trace Flag: 7806** enables a dedicated administrator connection ([DAC]) on SQL Server Express. + + + +## Trace Flags List +Summary: **593 trace flags** + + + +#### Trace Flag: -1 +Function: Sets trace flags for all client connections, rather than for a single client connection. +Because trace flags set using the -T command-line option automatically apply to all connections, this trace flag is used only when setting trace flags using [DBCC TRACEON] and [DBCC TRACEOFF].
Link: http://www.sql-server-performance.com/2002/traceflags/ -**Trace Flag: 101**
-Function: Verbose Merge Replication logging output for troubleshooting -Merger repl performance
-Link: http://support.microsoft.com/kb/2892633 + +#### Trace Flag: 101 +Function: Verbose Merge Replication logging output for troubleshooting Merger repl performance
+Link: https://support.microsoft.com/help/2892633
+Scope: global only -**Trace Flag: 102**
-Function: Verbose Merge Replication logging to msmerge\_history table -for troubleshooting Merger repl performance
-Link: http://support.microsoft.com/kb/2892633 + +#### Trace Flag: 102 +Function: Verbose Merge Replication logging to msmerge\_history table for troubleshooting Merger repl performance
+Link: https://support.microsoft.com/help/2892633
+Scope: global only -**Trace Flag: 105**
+ +#### Trace Flag: 105 +**Undocumented trace flag**
Function: Join more than 16 tables in SQL server 6.5
-Link: http://www.databasejournal.com/features/mssql/article.php/1443351/SQL-Server-65-Some-Useful-Trace-Flags.htm +Link: [SQL Server 6.5: Some Useful Trace Flag] -**Trace Flag: 106**
-Function: This enables you to see the messages that are sent to and from the Publisher, if you are using Web Synchronization
+ +#### Trace Flag: 106 +Function: If you are using Web Synchronization, you can start Replmerg.exe and pass the -T 106 option to use trace flag 106. +This enables you to see the messages that are sent to and from the Publisher. +The agent writes the client's input messages to a file that is named ExchangeID(guid).IN.XML, and writes the output messages to a file that is named ExchangeID(guid).OUT.XML. +(In these file names, guid is the GUID of the Exchange Server session.) +These files are created in the directory from which Replmerg.exe was invoked. +For security, you should delete these files after you are finished.
Link: http://technet.microsoft.com/en-us/library/ms151872(v=sql.105).aspx -**Trace Flag: 107**
+ +#### Trace Flag: 107 +**Undocumented trace flag**
Function: SQL 6.5/7/8 – Interprets numbers with a decimal point as float instead of decimal
-Link: http://support.microsoft.com/kb/203787
-Link: https://support.microsoft.com/en-us/kb/155714
-*Thanks to: http://www.sqlservercentral.com* +Link: None -**Trace Flag: 110**
+ +#### Trace Flag: 110 +**Undocumented trace flag**
Function: SQL 6.5 – Turns off ANSI select characteristics
-Link: https://support.microsoft.com/en-us/kb/152032 +Link: None + + + +#### Trace Flag: 120 +**Undocumented trace flag**
+Function: FIX: Error message when you schedule a Replication Merge Agent job to run after you install SQL Server 2000 Service Pack 4: "The process could not enumerate changes at the 'Subscriber'"
+Link: None + + + +#### Trace Flag: 139 +Function: Forces correct conversion semantics in the scope of DBCC check commands like [DBCC CHECKDB], [DBCC CHECKTABLE] and [DBCC CHECKCONSTRAINTS], when analyzing the improved precision and conversion logic introduced with compatibility level 130 for specific data types, on a database that has a lower compatibility level. +**Note: This trace flag applies to SQL Server 2016 RTM CU3, SQL Server 2016 SP1 and higher builds.**
+**WARNING: Trace flag 139 is not meant to be enabled continuously in a production environment, and should be used for the sole purpose of performing database validation checks described in this Microsoft Support article. +It should be immediately disabled after validation checks are completed.**
+Link: https://support.microsoft.com/help/4010261
+Link: [Docs Trace Flags]
+Scope: global only -**Trace Flag: 146**
+ +#### Trace Flag: 144 +Function: Force server side bucketization. +For legacy applications where change to client side code is not an option and +when the application has queries that are improperly parameterized, this trace flag forces server side bucketization.
+Link: http://blogs.msdn.microsoft.com/sqlprogrammability/2007/01/13/6-0-best-programming-practices + + + +#### Trace Flag: 146 +**Undocumented trace flag**
Function: Consider using when replaying against SQL 8.0, to avoid an attempt to set an encrypted connection.
Link: None -**Trace Flag: 168**
-Function: Bugfix in ORDER BY
-Link: http://support.microsoft.com/kb/926292 + +#### Trace Flag: 166 +**Undocumented trace flag**
+Function: Unclear. Observable effect was to change the identifier for act1008 to act1009 in a query plan.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 168 +Function: Bugfix in ORDER BY. This hotfix introduces trace flag 168. After you apply this hotfix, you must enable trace flag 168. +Trace flag 168 must be set before the database is migrated to SQL Server 2005. +If trace flag 168 is set after the database is migrated, the query result will remain unsorted.
+Link: https://support.microsoft.com/help/926292 + + + +#### Trace Flag: 174 +Function: Increases the SQL Server Database Engine plan cache bucket count from 40,009 to 160,001 on 64-bit systems.
+**Note: Please ensure that you thoroughly test this option, before rolling it into a production environment.**
+Link: https://support.microsoft.com/help/3026083/fix-sos-cachestore-spinlock-contention-on-ad-hoc-sql-server-plan-cache
+Link: [Docs Trace Flags]
+Scope: global only -**Trace Flag: 204**
+ +#### Trace Flag: 176 +Function: Enables a fix to address errors when rebuilding partitions online for tables that contain a computed partitioning column.
+Link: https://support.microsoft.com/help/3213683/fix-unable-to-rebuild-the-partition-online-for-a-table-that-contains-a
+Link: [Docs Trace Flags]
+Scope: global or session + + + +#### Trace Flag: 204 Function: SQL 6.5 – Backward compatibility switch that enables non-ansi standard behavior. E.g. previously SQL server ignored trailing blanks in the like statement and allowed queries that contained aggregated functions to have items in the group by clause that were not in the select list.
-Link: None +Link: https://support.microsoft.com/help/153096/fix-sql-server-6.5-service-pack-1-fixlist -**Trace Flag: 205**
-Function: Log usage of AutoStat/Auto Update Statistics
-Link: http://support.microsoft.com/kb/195565 + +#### Trace Flag: 205 +Function: Reports to the error log when a statistics-dependent stored procedure is being recompiled as a result of auto-update statistics.
+Link: https://support.microsoft.com/help/195565
+Link: [Docs Trace Flags]
+Scope: global only -**Trace Flag: 206**
+ +#### Trace Flag: 206 +**Undocumented trace flag**
Function: SQL 6.5 – Provides backward compatibility for the set user statement. KB 160732
Link: None -**Trace Flag: 208**
+ +#### Trace Flag: 208 +**Undocumented trace flag**
Function: SET QUOTED IDENTIFIER ON
Link: None -**Trace Flag: 210**
+ +#### Trace Flag: 210 Function: SQL 9 – Error when you run a query against a view: "An error occurred while executing batch"
-Link: https://support.microsoft.com/en-us/kb/945892 +Link: https://support.microsoft.com/help/945892 -**Trace Flag: 212**
+ +#### Trace Flag: 212 +**Undocumented trace flag**
Function: SQL 9 – Query may run much slower when compared to SQL 8 when you use a cursor to run the query
-Link: https://support.microsoft.com/en-us/kb/951184 +Link: None + + + +#### Trace Flag: 220 +**Undocumented trace flag**
+Function: “FIX: Error Message: "Insufficient key column information for updating" Occurs in SQL Server 2000 SP3”
+Link: None + + + +#### Trace Flag: 221 +**Undocumented trace flag**
+Function: “FIX: The query runs slower than you expected when you try to parse a query in SQL Server 2000”
+Link: None + + + +#### Trace Flag: 222 +**Undocumented trace flag**
+Function: “FIX: Each query takes a long time to compile when you execute a single query or when you execute multiple concurrent queries in SQL Server 2000”
+Link: None -**Trace Flag: 237**
+ +#### Trace Flag: 237 +**Undocumented trace flag**
Function: Tells SQL Server to use correlated sub-queries in Non-ANSI standard backward compatibility mode
Link: None -**Trace Flag: 242**
+ +#### Trace Flag: 242 +**Undocumented trace flag**
Function: Provides backward compatibility for correlated subqueries where non-ANSI-standard results are desired
Link: None -**Trace Flag: 243**
+ +#### Trace Flag: 243 +**Undocumented trace flag**
Function: Provides backward compatibility for nullability behavior. When set, SQL Server has the same nullability violation behavior as that of a ver 4.2: Processing of the entire batch is terminated if the nullability error (inserting NULL into a NOT NULL field) can be detected at compile time; Processing of offending row is skipped, but the command continues if the nullability violation is detected at run time.Behavior of SQL Server is now more consistent because nullability checks are made at run time and a nullability violation results in the command terminating and the batch or transaction process continuing.
Link: None -**Trace Flag: 244**
+ +#### Trace Flag: 244 +**Undocumented trace flag**
Function: Disables checking for allowed interim constraint violations. By default, SQL Server checks for and allows interim constraint violations. An interim constraint violation is caused by a change that removes the violation such that the constraint is met, all within a single statement and transaction. SQL Server checks for interim constraint violations for self-referencing DELETE statements, INSERT, and multi-row UPDATE statements. This checking requires more work tables. With this trace flag you can disallow interim constraint violations, thus requiring fewer work tables.
Link: None -**Trace Flag: 246**
+ +#### Trace Flag: 246 +**Undocumented trace flag**
Function: Derived or NULL columns must be explicitly named in a select…INTO or create view statement when not done they raise an error. This flag avoids that.
Link: None -**Trace Flag: 253**
+ +#### Trace Flag: 253 +**Undocumented trace flag**
Function: Prevents ad-hoc query plans to stay in cache
Link: http://www.sqlservercentral.com/Forums/Topic837613-146-1.aspx -**Trace Flag: 257**
+ +#### Trace Flag: 257 +**Undocumented trace flag**
Function: Will invoke a print algorithm on the XML output before returning it to make the XML result more readable
Link: None -**Trace Flag: 260**
-Function: Prints versioning information about extended stored procedure dynamic-link libraries (DLLs). Scope: global or session
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx
-Link: http://msdn.microsoft.com/en-us/library/ms164627.aspx
-Scope: global + +#### Trace Flag: 260 +Function: Prints versioning information about extended stored procedure dynamic-link libraries (DLLs). +When SQL Server is started with the trace flag `-T260` or if a user with system administrator privileges runs `DBCC TRACEON (260)`, and if the extended stored procedure DLL does not support `__GetXpVersion()`, a warning message (`Error 8131: Extended stored procedure DLL '%' does not export __GetXpVersion().`) is printed to the error log. (Note that `__GetXpVersion()` begins with **two underscores**.)
+Link: https://docs.microsoft.com/en-us/sql/relational-databases/extended-stored-procedures-programming/creating-extended-stored-procedures
+Link: [Docs Trace Flags]
+Scope: global or session -**Trace Flag: 262**
+ +#### Trace Flag: 262 +**Undocumented trace flag**
Function: SQL 7 – Trailing spaces are no longer truncated from literal strings in CASE statements
-Link: https://support.microsoft.com/en-us/kb/891116 +Link: None -**Trace Flag: 272**
-Function: Generates a log record per identity increment. Can be users -to convert SQL 2012 back to old style Identity behaviour
+ +#### Trace Flag: 272 + +**Note: Recommended for SQL Server 2012**
+Function: Disabling the identity cache. It prevents identity gap after restarting SQL Server 2012 instance, critical for columns with identity and tinyint and smallint data types.
Link: http://www.big.info/2013/01/how-to-solve-sql-server-2012-identity.html
-Link: https://connect.microsoft.com/SQLServer/feedback/details/739013/failover-or-restart-results-in-reseed-of-identity +Link: https://web.archive.org/web/20160822054721/https://connect.microsoft.com/SQLServer/feedback/details/739013/failover-or-restart-results-in-reseed-of-identity
+Link: https://dbafromthecold.com/2017/05/24/disabling-the-identity-cache-in-sql-server-2017/
+Link: [Demo](https://github.com/ktaranov/sqlserver-kit/blob/master/Errors/Identity_gap_sql_server_2012.sql)
+Link: https://stackoverflow.com/q/14146148/2298061
+Scope: global only + + +#### Trace Flag: 274 +**Undocumented trace flag**
+Function: “FIX: Error message when you insert a new row into a view in SQL Server 2005: Cannot insert explicit value for identity column in table when IDENTITY_INSERT is set to OFF”
+Link: None -**Trace Flag: 302**
+ + +#### Trace Flag: 302 +**Undocumented trace flag**
Function: Output Index Selection info
-Link: http://www.databasejournal.com/features/mssql/article.php/1443351/SQL-Server-65-Some-Useful-Trace-Flags.htm +Link: [SQL Server 6.5: Some Useful Trace Flag] -**Trace Flag: 310**
+ +#### Trace Flag: 304 +**Undocumented trace flag**
+Function: Changed the reported CachedPlanSize.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 310 +**Undocumented trace flag**
Function: Outputs info about actual join order
-Link: http://www.databasejournal.com/features/mssql/article.php/1443351/SQL-Server-65-Some-Useful-Trace-Flags.htm +Link: [SQL Server 6.5: Some Useful Trace Flag] -**Trace Flag: 320**
+ +#### Trace Flag: 320 +**Undocumented trace flag**
Function: Disables join-order heuristics used in ANSI joins. To see join-order heuristics use flag 310. SQL Server uses join-order heuristics to reduce of permutations when using the best join order.
Link: None -**Trace Flag: 323**
+ +#### Trace Flag: 323 Function: Outputs detailed info about updates
-Link: http://www.databasejournal.com/features/mssql/article.php/1443351/SQL-Server-65-Some-Useful-Trace-Flags.htm +Link: [SQL Server 6.5: Some Useful Trace Flag]
+Link: https://support.microsoft.com/help/153096/fix-sql-server-6.5-service-pack-1-fixlist -**Trace Flag: 325**
+ +#### Trace Flag: 325 +**Undocumented trace flag**
Function: Prints information about the cost of using a non-clustered index or a sort to process an ORDER BY clause
Link: None -**Trace Flag: 326**
+ +#### Trace Flag: 326 +**Undocumented trace flag**
Function: Prints information about estimated & actual costs of sorts. Instructs server to use arithmetic averaging when calculating density instead of a geometric weighted average when updating statistics. Useful for building better stats when an index has skew on the leading column. Use only for updating the stats of a table/index with known skewed data.
Link: None -**Trace Flag: 330**
+ +#### Trace Flag: 330 +**Undocumented trace flag**
Function: Enables full output when using the SET SHOWPLAN_ALL option, which gives detailed information about joins
Link: None -**Trace Flag: 342**
+ +#### Trace Flag: 342 +**Undocumented trace flag**
Function: Disables the costing of pseudo-merge joins, thus significantly reducing time spent on the parse for certain types of large, multi-table joins. One can also use SET FORCEPLAN ON to disable the costing of pseudo-merge joins because the query is forced to use the order specified in the FROM clause.
Link: None -**Trace Flag: 345**
+ +#### Trace Flag: 345 +**Undocumented trace flag**
Function: Changes join order selection logic in SQL Server 6.5
-Link: http://www.databasejournal.com/features/mssql/article.php/1443351/SQL-Server-65-Some-Useful-Trace-Flags.htm +Link: [SQL Server 6.5: Some Useful Trace Flag] -**Trace Flag: 445**
+ +#### Trace Flag: 445 +**Undocumented trace flag**
Function: Prints ”compile issued” message in the errorlog for each compiled statement, when used together with 3605
Link: None -**Trace Flag: 506**
+ +#### Trace Flag: 460 +Function: Replace error message [8152] with [2628] (`String or binary data would be truncated. The statement has been terminated.`). +Description for [2628] mesage has useful information - which column had the truncation and which row.
+Link: [Docs Trace Flags]
+Link: https://www.procuresql.com/blog/2018/09/26/string-or-binary-data-get-truncated/
+Link: https://feedback.azure.com/forums/908035-sql-server/suggestions/32908417-binary-or-string-data-would-be-truncated-error
+Link: https://blogs.msdn.microsoft.com/sql_server_team/string-or-binary-data-would-be-truncated-replacing-the-infamous-error-8152/
+Link: https://support.microsoft.com/help/4468101
+Scope: global or session
+SQL Server Version: 2019, >= 2017 CU12
+Demo: https://github.com/ktaranov/sqlserver-kit/blob/master/Scripts/Trace_Flag/Trace_Flag_460.sql + + + +#### Trace Flag: 506 +**Undocumented trace flag**
Function: Enforces SQL-92 standards regarding null values for comparisons between variables and parameters. Any comparison of variables and parameters that contain a NULL always results in a NULL.
Link: None -**Trace Flag: 610**
-Function: Minimally logged inserts to indexed tables
-Link: http://msdn.microsoft.com/en-us/library/dd425070%28v=SQL.100%29.aspx + +#### Trace Flag: 610 +Function: Controls minimally logged inserts into indexed tables.
+Link: http://msdn.microsoft.com/en-us/library/dd425070%28v=SQL.100%29.aspx
+Link: https://www.pythian.com/blog/minimally-logged-operations-data-loads/
+Link: https://msdn.microsoft.com/library/dd425070.aspx
+Link: [Docs Trace Flags]
+Link: https://orderbyselectnull.com/2017/07/10/trace-flag-610-and-sql-server-2016/
+Scope: global or session -**Trace Flag: 611**
-Function: SQL 9 – When turned on, each lock escalation is recorded in the error log along with the SQL Server handle number
+ +#### Trace Flag: 611 +**Undocumented trace flag**
+Function: SQL 9 – When turned on, each lock escalation is recorded in the error log along with the SQL Server handle number. +Aaron confirmed this still works in SQL 2014. Outputs info of the form: "Escalated locks - Reason: LOCK_THRESHOLD, Mode: S, Granularity: TABLE, Table: 222623836, +HoBt: 150:256, HoBt Lock Count: 6248, Escalated Lock Count: 6249, Line Number: 1, Start Offset: 0, SQL Statement: select count(*) from dbo.BigTable"
Link: None -**Trace Flag: 634**
-Function: Disables the background columnstore compression task
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx
-Scope: global - - -**Trace Flag: 652**
-Function: Disable page pre-fetching scans
-Link: http://support.microsoft.com/kb/920093 + +#### Trace Flag: 617 +Function: SQL 9 – When turned on, each lock escalation is recorded in the error log along with the SQL Server handle number. +As long as there are no SCH_M lock requests waiting in the ‘lock wait list’, +the ‘lock wait list’ will be bypassed by statements issued in uncommitted read transaction isolation level. +If there is a SCH_M lock request in the ‘lock wait list’, a query in uncommitted read transaction isolation level +will not bypass the ‘lock wait list’, but the SCH_S lock request will go into the ‘lock wait list’. +In order behind the SCH_M lock waiting in the same list. As a result the grant of the SCH_S request for such a query +is dependent on the grant and release of the SCH_M lock request entering the ‘lock wait list’ earlier.
+Link: https://blogs.msdn.microsoft.com/saponsqlserver/2014/01/17/new-functionality-in-sql-server-2014-part-3-low-priority-wait/ + + + +#### Trace Flag: 634 +Function: Disables the background columnstore compression task. SQL Server periodically runs the Tuple Mover background task that compresses columnstore index rowgroups with uncompressed data, one such rowgroup at a time. +Columnstore compression improves query performance but also consumes system resources. +You can control the timing of columnstore compression manually, by disabling the background compression task with trace flag 634, and then explicitly invoking ALTER INDEX REORGANIZE or ALTER INDEX REBUILD at the time of your choice.
+Link: [Niko Neugebauer Columnstore Indexes – part 35]
+Link: [Docs Trace Flags]
+Link: http://www.sqlservergeeks.com/trace-flag-634-disable-background-columnstore-compression/
+Scope: global only + + + +#### Trace Flag: 646 +Function: Serves for getting detailed information on which Columnstore were eliminated by the Query Optimiser right into the error log.
+Link: [Niko Neugebauer Columnstore Indexes – part 35]
+Link: http://www.sqlskills.com/blogs/joe/exploring-columnstore-index-metadata-segment-distribution-and-elimination-behaviors + + + +#### Trace Flag: 647 +Function: Avoids a new-in-SQL 2012 data check (done when adding a column to a table) that can cause ALTER TABLE... ADD operations to take a very long time. +The KB has a useful query for determining the row size for a table.
+Link: https://support.microsoft.com/help/2986423/fix-it-takes-a-long-time-to-add-new-columns-to-a-table-when-the-row-size-exceeds-the-maximum-allowed-size
+ + + +#### Trace Flag: 652 +Function: Disable page pre-fetching scans. +If you turn on trace flag 652, SQL Server no longer brings database pages into the buffer pool before these database pages are consumed by the scans. +If you turn on trace flag 652, queries that benefit from the page pre-fetching feature exhibit low performance.
+Link: [KB920093]
+Link: [Docs Trace Flags]
+Scope: global or session -**Trace Flag: 653**
+ +#### Trace Flag: 653 +**Undocumented trace flag**
Function: Disables read ahead for the current connection
Link: None -**Trace Flag: 661**
-Function: Disable the ghost record removal process
-Link: http://support.microsoft.com/kb/920093 + +#### Trace Flag: 661 +Function: Disables the ghost record removal process. A ghost record is the result of a delete operation. +When you delete a record, the deleted record is kept as a ghost record. Later, the deleted record is purged by the ghost record removal process. +When you disable this process, the deleted record is not purged. Therefore, the space that the deleted record consumes is not freed. +This behavior affects space consumption and the performance of scan operations.
+Link: [KB920093]
+Link: [Docs Trace Flags]
+Scope: global or session -**Trace Flag: 662**
-Function: Prints detailed information about the work done by the ghost -cleanup task when it runs next. Use TF 3605 to see the output in the -errorlog
+ +#### Trace Flag: 662 +**Undocumented trace flag**
+Function: Prints detailed information about the work done by the ghost cleanup task when it runs next. +Use TF [3605](#3605) to see the output in the errorlog
Link: http://blogs.msdn.com/b/sqljourney/archive/2012/07/28/an-in-depth-look-at-ghost-records-in-sql-server.aspx -**Trace Flag: 698**
+ +#### Trace Flag: 669 +Function: “...prevents user queries from queuing requests to the ghost cleanup process”. This flag is a workaround for stack dumps occurring right after SQL Server startup, where user queries (that queue pages for ghost cleanup) were running so quickly after SQL startup that they were queuing pages before the ghost cleanup process had actually initialized.
+Link: https://support.microsoft.com/help/3027860/error-17066-or-17310-during-sql-server-startup + + + +#### Trace Flag: 683 +**Undocumented trace flag**
+Function: According to the KB, used to workaround a bug in SQL 2000 SP3 by reverting to pre-SP3 parallel-scan behavior in parallel queries. Database-Wiki.com: “Disallow row counter and column mod counters to be partitioned”
+Link: None + + + +#### Trace Flag: 692 +Function: Disables fast inserts while bulk loading data into heap or clustered index. +Starting SQL Server 2016, fast inserts is enabled by default leveraging minimal logging when database is in simple or bulk logged recovery model to optimize insert performance for records inserted into new pages. +With fast inserts, each bulk load batch acquires new extent(s) bypassing the allocation lookup for existing extent with available free space to optimize insert performance. +With fast inserts, bulk loads with small batch sizes can lead to increased unused space consumed by objects hence it is recommended to use large batch size for each batch to fill the extent completely. +If increasing batch size is not feasible, this trace flag can help reduce unused space reserved at the expense of performance.
+**Note: This trace flag applies to SQL Server 2016 RTM and higher builds.** +Link: https://blogs.msdn.microsoft.com/sql_server_team/sql-server-2016-minimal-logging-and-impact-of-the-batchsize-in-bulk-load-operations/
+Scope: global or session + + + +#### Trace Flag: 698 +**Undocumented trace flag**
Function: SQL 9 – Performance of INSERT operations against a table with an identity column may be slow when compared to SQL 8
-Link: https://support.microsoft.com/en-gb/kb/940545 +Link: None -**Trace Flag: 699**
+ +#### Trace Flag: 699 +**Undocumented trace flag**
Function: Turn off transaction logging for the entire SQL dataserver
Link: None -**Trace Flag: 806**
-Function: Turn on Page Audit functionality, to verify page validity
-Link: http://technet.microsoft.com/en-au/library/cc917726.aspx +#### Trace Flag: 670, 671 +**Undocumented trace flag**
+Function: Disables deferred deallocation. But note Paul White’s comment on the post! The flag # may actuall by 671.
+Link: [Controlling SQL Server memory dumps] + + + +#### Trace Flag: 715 +Function: Enables table lock for bulk load operations into a heap with no non-clustered indexes. +When this trace flag is enabled, bulk load operations acquire bulk update (BU) locks when bulk copying data into a table. +Bulk update (BU) locks allow multiple threads to bulk load data concurrently into the same table, while preventing other processes that are not bulk loading data from accessing the table. +The behavior is similar to when the user explicitly specifies TABLOCK hint while performing bulk load, or when the sp_tableoption table lock on bulk load is enabled for a given table. +However, when this trace flag is enabled, this behavior becomes default without any query or database changes.
+Link: [Docs Trace Flags]
+Scope: global or session + + +#### Trace Flag: 806 +Function: enables DBCC audit checks to be performed on pages to test for logical consistency problems. +These checks try to detect when a read operation from a disk does not experience any errors but the read operation returns data that is not valid. +Pages will be audited every time that they are read from disk. +Page auditing can affect performance and should only be used in systems where data stability is in question.
+Link: http://technet.microsoft.com/en-au/library/cc917726.aspx
+Link: http://www.sqlskills.com/blogs/paul/how-to-tell-if-the-io-subsystem-is-causing-corruptions
+Link: [Important Trace Flags That Every DBA Should Know]
+Link: https://technet.microsoft.com/en-au/library/cc917726.aspx
+Scope: ? -**Trace Flag: 809**
+ + +#### Trace Flag: 809 +**Undocumented trace flag**
Function: SQL 8 – Limits the amount of Lazy write activity
Link: None -**Trace Flag: 815**
+ +#### Trace Flag: 815 Function: SQL 8/9 – Enables latch enforcement. SQL Server 8 (with service pack 4) and SQL Server 9 can perform latch enforcement for data pages found in the buffer pool cache. Latch enforcement changes the virtual memory protection state while database page status changes from "clean" to "dirty" ("dirty" means modified through INSERT, UPDATE or DELETE operation). If an attempt is made to modify a data page while latch enforcement is set, it causes an exception and creates a mini-dump in SQL Server installation's LOG directory. Microsoft support can examine the contents of such mini-dump to determine the cause of the exception. In order to modify the data page the connection must first acquire a modification latch. Once the data modification latch is acquired the page protection is changed to read-write. Once the modification latch is released the page protection changes back to read-only.
-Link: None +Link: https://technet.microsoft.com/en-us/library/cc966500.aspx
+Link: https://blogs.msdn.microsoft.com/psssql/2012/11/12/how-can-reference-counting-be-a-leading-memory-scribbler-cause -**Trace Flag: 818**
+ +#### Trace Flag: 818 Function: Turn on ringbuffer to store info about IO write operations. Used to troubleshoot IO problems
-Link: http://support.microsoft.com/kb/826433 +Link: https://support.microsoft.com/help/826433/
+Link: https://technet.microsoft.com/en-us/library/cc966500.aspx
+Link: https://support.microsoft.com/help/828339/
+Link: [Important Trace Flags That Every DBA Should Know]
+Scope: ? + + + +#### Trace Flag: 822 +**Undocumented trace flag**
+Function: A workaround for SQL 2000 over-committing memory on the machine
+Link: None + + + +#### Trace Flag: 825 +**Undocumented trace flag**
+Function: In SQL 2000, enables Buffer Pool support for NUMA. TF 888 must be used.
+Link: None -**Trace Flag: 828**
+ +#### Trace Flag: 828 Function: SQL 8 - When enabled checkpoint ignores the recovery interval target and keeps steady I/O otherwise it uses recovery interval setting as a target for the length of time that checkpoint will take
-Link: https://support.microsoft.com/en-gb/kb/906121 +Link: https://support.microsoft.com/help/906121 +Link: https://blogs.msdn.microsoft.com/psssql/2008/04/11/how-it-works-sql-server-checkpoint-flushcache-outstanding-io-target/ -**Trace Flag: 830**
+ +#### Trace Flag: 830 Function: SQL 9 – Disable the reporting of CPU Drift errors in the SQL Server errorlog like SQL Server has encountered 2 occurrence(s) of I/O requests taking longer than 15 seconds to complete
-Link: None +Link: https://support.microsoft.com/help/897284
+Link: https://technet.microsoft.com/en-us/library/aa175396(v=SQL.80).aspx -**Trace Flag: 831**
+ +#### Trace Flag: 831 +**Undocumented trace flag**
Function: Protect unchanged pages in the buffer pool to catch memory corruptions
Link: None -**Trace Flag: 834**
-Function: Large Page Allocations
-Link: http://www.sqlservice.se/sv/start/blogg/nagra-trace-flags-for-sql-server.aspx
-Link: http://support.microsoft.com/kb/920093 + +#### Trace Flag: 834 +Function: Uses Microsoft Windows large-page allocations for the buffer pool. +Trace flag 834 causes SQL Server to use Microsoft Windows large-page allocations for the memory that is allocated for the buffer pool. +The page size varies depending on the hardware platform, but the page size may be from 2 MB to 16 MB. +Large pages are allocated at startup and are kept throughout the lifetime of the process. +Trace flag 834 improves performance by increasing the efficiency of the translation look-aside buffer (TLB) in the CPU.
+**Note: If you are using the Columnstore Index feature of SQL Server 2012 to SQL Server 2016, we do not recommend turning on trace flag 834.**
+Link: [KB920093]
+Link: https://support.microsoft.com/help/3210239
+Link: [Docs Trace Flags]
+Scope: global only -**Trace Flag: 835**
+ +#### Trace Flag: 835 +**Undocumented trace flag**
Function: SQL 9 / 10 – On 64 bit SQL Server it turns off Lock pages in memory
-Link: None +Link: None
+Scope: ? + + +#### Trace Flag: 836 +Function: Trace flag 836 causes SQL Server to size the buffer pool at startup based on the value of the max server memory option instead of based on the total physical memory. +You can use trace flag 836 to reduce the number of buffer descriptors that are allocated at startup in 32-bit Address Windowing Extensions (AWE) mode. +Trace flag 836 applies only to 32-bit versions of SQL Server that have the AWE allocation enabled. You can turn on trace flag 836 only at startup.
+Link: [KB920093]
+Link: https://blogs.msdn.microsoft.com/psssql/2012/12/11/how-it-works-sql-server-32-bit-paeawe-on-sql-2005-2008-and-2008-r2-not-using-as-much-ram-as-expected/
+Scope: global only -**Trace Flag: 836**
-Function: Use the max server memory option for the buffer pool
-Link: http://support.microsoft.com/kb/920093 + +#### Trace Flag: 839 +Function: (Apparently) forces SQL Server to treate all NUMA memory as “flat”, as if it was SMP.
+Link: https://blogs.msdn.microsoft.com/psssql/2010/04/02/how-it-works-soft-numa-io-completion-thread-lazy-writer-workers-and-memory-nodes -**Trace Flag: 840**
+ + +#### Trace Flag: 840 Function: SQL 9 – When trace turned on, SQL Server can perform larger I/O extent reads to populate the buffer pool when SQL Server starts this populates the buffer pool faster. Additionally, the larger I/O extent reads improve the initial query compilation and the response time when SQL Server starts.
-Link: https://support.microsoft.com/en-gb/kb/912322 +Link: https://blogs.msdn.microsoft.com/ialonso/2011/12/09/the-read-ahead-that-doesnt-count-as-read-ahead -**Trace Flag: 842**
+ +#### Trace Flag: 842 +**Undocumented trace flag**
Function: Use sys.dm_os_memory_node_access_stats to verify local vs. foreign memory under NUMA configurations after turning on this flag
Link: None -**Trace Flag: 845**
+ +#### Trace Flag: 845 Function: Enable Lock pages in Memory on Standard Edition
-Link: http://www.sqlservice.se/sv/start/blogg/sql-server-performance-with-dynamics-axapta.aspx
-Link: https://support.microsoft.com/en-gb/kb/970070 +Link: https://support.microsoft.com/help/970070
+Link: https://support.microsoft.com/help/2708594/fix-locked-page-allocations-are-enabled-without-any-warning-after-you-upgrade-to-sql-server-2012 -**Trace Flag: 902**
-Function: Bypass Upgrade Scripts
-Link: http://www.sqlservice.se/sv/start/blogg/sql-server-2012-cu1-upgrade-step--msdb110_upgrade-sql--encountered-error-547.aspx
-Link: https://support.microsoft.com/en-gb/kb/2163980 + +**Undocumented trace flag**
+#### Trace Flag: 851 +Function: According to Bob Ward’s PASS 2014 talk on SQL Server IO, “disable[s] BPE even if enabled via ALTER SERVER”
+Link: None -**Trace Flag: 1106**
-Function: SQL 9 - Used space in tempdb increases continuously when you run a query that creates internal objects in tempdb
-Link: https://support.microsoft.com/en-gb/kb/947204 + +#### Trace Flag: 861 +**Undocumented trace flag**
+Function: According to the error log this disables buffer pool extension.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 862 +**Undocumented trace flag**
+Function: According to the error log this enables buffer pool extension. This TF probably doesn’t do anything anymore.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 876 +**Undocumented trace flag**
+Function: Turns 8k page allocations for Column Store segments into 2MB instead.
+Link: https://twitter.com/slava_oks/status/1044257034361757696
+Link: https://github.com/ktaranov/sqlserver-kit/issues/151
+Scope: ? + + + +**Undocumented trace flag**
+#### Trace Flag: 888 +Function: Enables support for locked pages for SQL 2000
+Link: None + + + +#### Trace Flag: 902 +Function: Bypasses execution of database upgrade script when installing a Cumulative Update or Service Pack. +If you encounter an error during script upgrade mode, it is recommended to contact Microsoft SQL Customer Service and Support (CSS) for further guidance.
+**Warning: This trace flag is meant for troubleshooting of failed updates during script upgrade mode, and it is not supported to run it continuously +in a production environment. Database upgrade scripts needs to execute successfully for a complete install of Cumulative Updates and Service Packs. +Not doing so can cause unexpected issues with your SQL Server instance.**
+Link: https://support.microsoft.com/help/2163980
+Link: [Docs Trace Flags]
+Link: https://blogs.msdn.microsoft.com/luti/2017/05/17/sql-server-offline-after-applying-service-pack/
+Scope: global only -**Trace Flag: 1117**
-Function: Simultaneous Autogrowth in Multiple-file database
-Link: http://www.sqlservice.se/sv/start/blogg/nagra-trace-flags-for-sql-server.aspx
-Link: http://blogs.technet.com/technet_blog_images/b/sql_server_sizing_ha_and_performance_hints/archive/2012/02/09/sql-server-2008-trace-flag-t-1117.aspx + +#### Trace Flag: 916 +**Undocumented trace flag**
+Function: The KB article references the flag in the context of seeing a Profiler dump
+Link: None -**Trace Flag: 1118**
-Function: Force Uniform Extent Allocation
-Link: http://www.sqlservice.se/sv/start/blogg/nagra-trace-flags-for-sql-server.aspx
+ +#### Trace Flag: 1106 +Function: SQL 9 - Used space in tempdb increases continuously when you run a query that creates internal objects in tempdb
+Link: https://support.microsoft.com/help/947204
+Link: https://blogs.msdn.microsoft.com/arvindsh/2014/02/24/tracking-tempdb-internal-object-space-usage-in-sql-2012 + + + +#### Trace Flag: 1117 +Function: When a file in the filegroup meets the autogrow threshold, all files in the filegroup grow.
+**Note: Beginning with SQL Server 2016 this behavior is controlled by the AUTOGROW_SINGLE_FILE and AUTOGROW_ALL_FILES option of ALTER DATABASE, and trace flag 1117 has no affect. +For more information, see [ALTER DATABASE File and Filegroup Options (Transact-SQL)](https://docs.microsoft.com/en-us/sql/t-sql/statements/alter-database-transact-sql-file-and-filegroup-options).**
+Link: https://www.littlekendra.com/2017/01/03/parallelism-and-tempdb-data-file-usage-in-sql-server/
+Link: [SQL Server 2016 : Getting tempdb a little more right]
+Link: [Docs Trace Flags]
+Link: http://www.sqlskills.com/blogs/paul/tempdb-configuration-survey-results-and-advice
+Link: https://blogs.msdn.microsoft.com/ialonso/2011/12/01/attempt-to-grow-all-files-in-one-filegroup-and-not-just-the-one-next-in-the-autogrowth-chain-using-trace-flag-1117
+Link: http://sql-articles.com/articles/general/day-6trace-flag-1117-auto-grow-equally-in-all-data-file
+Link: http://www.ryanjadams.com/2017/05/trace-flag-1117-growth-contention/
+Link: https://www.sqlskills.com/blogs/paul/misconceptions-around-tf-1118/
+Scope: global only + + + +#### Trace Flag: 1118 + +Function: Removes most single page allocations on the server, reducing contention on the SGAM page. +When a new object is created, by default, the first eight pages are allocated from different extents (mixed extents). +Afterwards, when more pages are needed, those are allocated from that same extent (uniform extent). +The SGAM page is used to track these mixed extents, so can quickly become a bottleneck when numerous mixed page allocations are occurring. +This trace flag allocates all eight pages from the same extent when creating new objects, minimizing the need to scan the SGAM page.
+**Note: Beginning with SQL Server 2016 this behavior is controlled by the SET MIXED_PAGE_ALLOCATION option of ALTER DATABASE, and trace flag 1118 has no affect. For more information, see ALTER DATABASE SET Options (Transact-SQL).**
Link: http://blogs.msdn.com/b/psssql/archive/2008/12/17/sql-server-2005-and-2008-trace-flag-1118-t1118-usage.aspx
-Scope: global +Link: http://www.sqlskills.com/blogs/paul/misconceptions-around-tf-1118/
+Link: https://support.microsoft.com/help/328551
+Link: [SQL Server 2016 : Getting tempdb a little more right]
+Link: [Docs Trace Flags]
+Link: https://chrisadkin.org/2015/04/14/well-known-and-not-so-well-known-sql-server-tuning-knobs-and-switches
+Scope: global only -**Trace Flag: 1119**
-Function: Turns of mixed extent allocation (Similar to 1118?)
-Link: http://social.technet.microsoft.com/wiki/contents/articles/13105.trace-flags-in-sql-server.aspx + +#### Trace Flag: 1119 +Function: Turns off mixed extent allocation (Similar to 1118?)
+Link: [TECHNET List Of SQL Server Trace Flags] -**Trace Flag: 1124**
+ +#### Trace Flag: 1124 +**Undocumented trace flag**
Function: Unknown. Has been reportedly found turned on in some SQL Server instances running Dynamics AX. Also rumored to be invalid in public builds of SQL Server
Link: None -**Trace Flag: 1140**
-Function: Fix for growing tempdb in special cases
-Link: http://support.microsoft.com/kb/2000471 + +#### Trace Flag: 1140 +**Undocumented trace flag**
+Function: A workaround for a bug in SQL 2005 SP2, SP3, and SQL 2008, where mixed page allocations climb continually, due to a change in the way that mixed-page allocations are done.
+Link: None + + + +#### Trace Flag: 1165 +**Undocumented trace flag**
+Function: This [presentation](http://www.youtube.com/watch?v=SvseGMobe2w&feature=youtu.be) by Bob Ward says that this TF outputs the recalculated #’s (every 8192 allocations) for the proportional fill algorithm in database allocation when multiple files are present..
+Link: None -**Trace Flag: 1180**
+ +#### Trace Flag: 1180 +**Undocumented trace flag**
Function: SQL 7 - Forces allocation to use free pages for text or image data and maintain efficiency of storage. Helpful in case when DBCC SHRINKFILE and SHRINKDATABASE commands may not work because of sparsely populated text, ntext, or image columns.
Link: None -**Trace Flag: 1197**
+ +#### Trace Flag: 1197 +**Undocumented trace flag**
Function: Applies only in the case of SQL 7 – SP3, similar with trace flag 1180
Link: None -**Trace Flag: 1200**
+ +#### Trace Flag: 1200 Function: Prints detailed lock information as every request for a lock is made (the process ID and type of lock requested)
-Link: http://social.technet.microsoft.com/wiki/contents/articles/13105.trace-flags-in-sql-server.aspx +Link: [TECHNET List Of SQL Server Trace Flags]
+Link: https://blogs.msdn.microsoft.com/sqlserverstorageengine/2008/03/30/tempdb-table-variable-vs-local-temporary-table
+Link: [KB169960]
+Link: [Important Trace Flags That Every DBA Should Know]
+Scope: ? -**Trace Flag: 1202**
+ +#### Trace Flag: 1202 +**Undocumented trace flag**
Function: Insert blocked lock requests into syslocks
Link: None -**Trace Flag: 1204**
-Function: Returns info about deadlocks
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx
-Scope: global + +#### Trace Flag: 1204 +Function: Returns the resources and types of locks participating in a deadlock and also the current command affected. +Writes information about deadlocks to the ERRORLOG in a "text format"
+Link: https://support.microsoft.com/help/832524
+Link: [Docs Trace Flags]
+Link: [Important Trace Flags That Every DBA Should Know]
+Scope: global only -**Trace Flag: 1205**
+ +#### Trace Flag: 1205 Function: More detailed information about the command being executed at the time of a deadlock. Documented in SQL 7 BOL.
-Link: None +Link: https://support.microsoft.com/help/832524/sql-server-technical-bulletin---how-to-resolve-a-deadlock -**Trace Flag: 1206**
+ +#### Trace Flag: 1206 Function: Used to complement flag 1204 by displaying other locks held by deadlock parties
-Link: None +Link: [KB169960] + + +#### Trace Flag: 1208 +Function: KB: “Prints the host name and program name supplied by the client. This can help identify a client involved in a deadlock, assuming the client specifies a unique value for each connection.”
+Link: [KB169960] -**Trace Flag: 1211**
-Function: Disables Lock escalation caused by memory pressure
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx
+ + +#### Trace Flag: 1211 +Function: Disables lock escalation based on memory pressure, or based on number of locks. The SQL Server Database Engine will not escalate row or page locks to table locks. +Using this trace flag can generate excessive numbers of locks. This can slow the performance of the Database Engine, or cause 1204 errors (unable to allocate lock resource) because of insufficient memory. +If both trace flag 1211 and 1224 are set, 1211 takes precedence over 1224. +However, because trace flag 1211 prevents escalation in every case, even under memory pressure, we recommend that you use 1224. +This helps avoid "out-of-locks" errors when many locks are being used.
+Link: [Docs Trace Flags]
+Link: http://www.sqlskills.com/blogs/paul/a-sql-server-dba-myth-a-day-2330-lock-escalation
+Link: [Important Trace Flags That Every DBA Should Know]
Scope: global or session -**Trace Flag: 1216**
-Function: SQL 7 - Disables Health reporting. Lock monitor when detects a (worker thread) resource level blocking scenario. If a SPID that owns a lock is currently queued to the scheduler, because all the assigned worker threads have been created and all the assigned worker threads are in an un-resolvable wait state, the following error message is written to the SQL Server error log: Error 1223: Process ID %d:%d cannot acquire lock "%s" on resource %s because a potential deadlock exists on Scheduler %d for the resource. Process ID %d:% d holds a lock "%h" on this resource.
+ +#### Trace Flag: 1216 +**Undocumented trace flag**
+Function: SQL 7 - Disables Health reporting. Lock monitor when detects a (worker thread) resource level blocking scenario. If a SPID that owns a lock is currently queued to the scheduler, because all the assigned worker threads have been created and all the assigned worker threads are in an un-resolvable wait state, the following error message is written to the SQL Server error log: Error 1223: Process ID %d:%d cannot acquire lock "%s" on resource %s because a potential deadlock exists on Scheduler %d for the resource. Process ID %d:% d holds a lock "%h" on this resource.
Link: None -**Trace Flag: 1222**
-Function: Returns Deadlock info in XML format
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx
-Scope: global + +#### Trace Flag: 1217 +**Undocumented trace flag**
+Function: Disables (for 7.0) the “UMS Health” reporting messages described in the KB article.
+Link: None -**Trace Flag: 1224**
-Function: Disables lock escalation based on number of locks
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx
+ +#### Trace Flag: 1222 +Function: Returns the resources and types of locks that are participating in a deadlock and also the current command affected, in an XML format that does not comply with any XSD schema.
+Link: [Docs Trace Flags]
+Link: https://blogs.msdn.microsoft.com/bartd/2006/09/08/deadlock-troubleshooting-part-1/
+Link: https://blog.sqlauthority.com/2017/01/09/sql-server-get-historical-deadlock-information-system-health-extended-events
+Link: [Important Trace Flags That Every DBA Should Know]
+Scope: global only + + + +#### Trace Flag: 1224 +Function: Disables lock escalation based on the number of locks. However, memory pressure can still activate lock escalation. +The Database Engine escalates row or page locks to table (or partition) locks if the amount of memory used by lock objects exceeds one of the following conditions: + - Forty percent of the memory that is used by Database Engine. This is applicable only when the locks parameter of sp_configure is set to 0. + - Forty percent of the lock memory that is configured by using the locks parameter of sp_configure. +For more information, see [Server Configuration Options (SQL Server)](https://docs.microsoft.com/en-us/sql/database-engine/configure-windows/server-configuration-options-sql-server). +If both trace flag 1211 and 1224 are set, 1211 takes precedence over 1224. +However, because trace flag 1211 prevents escalation in every case, even under memory pressure, we recommend that you use 1224. +This helps avoid "out-of-locks" errors when many locks are being used.
+**Note: Lock escalation to the table- or HoBT-level granularity can also be controlled by using the LOCK_ESCALATION option of the ALTER TABLE statement.**
+Link: [Docs Trace Flags]
+Link: [Important Trace Flags That Every DBA Should Know]
Scope: global or session -**Trace Flag: 1236**
-Function: Fixes performance problem in scenarios with high lock activity -in SQL 2012 and SQL 2014
-Link: http://support.microsoft.com/kb/2926217 - - -**Trace Flag: 1261**
+ +#### Trace Flag: 1228 +Function: Enable lock partitioning. +By default, lock partitioning is enabled when a server has 16 or more CPUs. Otherwise, lock partitioning is disabled. +Trace flag 1228 enables lock partitioning for 2 or more CPUs. Trace flag 1229 disables lock partitioning. +Trace flag 1229 overrides trace flag 1228 if trace flag 1228 is also set. +Lock partitioning is useful on multiple-CPU servers where some tables have very high lock rates. +You can turn on trace flag 1228 and trace flag 1229 only at startup.
+Link: [Trace Flag 1228 and 1229]
+Link: [Microsoft SQL Server 2005 TPC-C Trace Flags] + + + +#### Trace Flag: 1229 +Function: Enable lock partitioning. +By default, lock partitioning is enabled when a server has 16 or more CPUs. Otherwise, lock partitioning is disabled. +Trace flag 1228 enables lock partitioning for 2 or more CPUs. Trace flag 1229 disables lock partitioning. +Trace flag 1229 overrides trace flag 1228 if trace flag 1228 is also set. +Lock partitioning is useful on multiple-CPU servers where some tables have very high lock rates. +You can turn on trace flag 1228 and trace flag 1229 only at startup.
+Link: [Trace Flag 1228 and 1229]
+Link: [Microsoft SQL Server 2005 TPC-C Trace Flags] + + + +#### Trace Flag: 1236 +Function: Enables database lock partitioning. Fixes performance problem in scenarios with high lock activity in SQL 2012 and SQL 2014.
+**Note: Beginning with SQL Server 2012 SP3 and SQL Server 2014 SP1 this behavior is controlled by the engine and trace flag 1236 has no effect.**
+Link: https://support.microsoft.com/help/2926217
+Link: [Docs Trace Flags]
+Scope: global only + + + +#### Trace Flag: 1237 +Function: Allows the `ALTER PARTITION FUNCTION` statement to honor the current user-defined session deadlock priority instead of being the likely deadlock victim by default.
+**Note: Starting with SQL Server 2017 and database [compatibility level] 140 this is the default behavior and trace flag 1237 has no effect.**
+Link: https://support.microsoft.com/help/4025261
+Link: [Docs Trace Flags]
+Scope: global or session or query + + + +#### Trace Flag: 1260 +Function: Disabled mini-dump for non-yield condition. +Disables mini-dump generation for "any of the 17883, 17884, 17887, or 17888 errors. +The trace flag can be used in conjunction with trace flag –T1262. For example, you +could enable –T1262 to get 10- and a 60-second interval reporting and also enable – T1260 to avoid getting mini-dumps."
+Link: [A Topical Collection of SQL Server Flags v6]
+Link: [How To Diagnose and Correct Errors 17883, 17884, 17887, and 17888]
+Link: [Docs Trace Flags]
+Scope: global only + + + +#### Trace Flag: 1261 +**Undocumented trace flag**
Function: SQL 8 - Disables Health reporting. Lock monitor when detects a (worker thread) resource level blocking scenario. If a SPID that owns a lock is currently queued to the scheduler, because all the assigned worker threads have been created and all the assigned worker threads are in an un-resolvable wait state, the following error message is written to the SQL Server error log: Error 1229: Process ID %d:%d owns resources that are blocking processes on scheduler %d.
Link: None -**Trace Flag: 1264**
+ +#### Trace Flag: 1262 +Function: The default behavior (for 1788* errors) is for SQL to generate a mini-dump on the first +occurrence, but never after. 1262 changes the behavior: “When –T1262 is enabled, a +mini-dump is generated when the non-yielding condition is declared (15 seconds) and +at subsequent 60-second intervals for the same non-yield occurrence. A new nonDiagCorrect17883etc; +yielding occurrence causes dump captures to occur again.” +In SQL 2000 this was a startup-only flag; in 2005+ it can be enabled via TRACEON. +Note that the flag is also covered in Khen2005, p400, but with no new information.
+Link: [A Topical Collection of SQL Server Flags v6]
+Link: [How To Diagnose and Correct Errors 17883, 17884, 17887, and 17888] + + + +#### Trace Flag: 1264 Function: Collect process names in non-yielding scenario memory dumps
-Link: http://support.microsoft.com/kb/2630458/en-us +Link: [A Topical Collection of SQL Server Flags v6]
+Link: https://support.microsoft.com/help/2630458/ -**Trace Flag: 1400**
+ +#### Trace Flag: 1400 Function: SQL 9 RTM – Enables creation of database mirroring endpoint, which is required for setting up and using database mirroring
Link: None -**Trace Flag: 1448**
-Function: Alters replication log reader functionality
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx + +#### Trace Flag: 1439 +Function: Trace database restart and failover messages to SQL Errorlog for mirrored databases
+Link: [Trace flags in sql server from trace flag 902 to trace flag 1462] -**Trace Flag: 1449**
+ +#### Trace Flag: 1448 +Function: Enables the replication log reader to move forward even if the async secondaries have not acknowledged the reception of a change. +Even with this trace flag enabled the log reader always waits for the sync secondaries. The log reader will not go beyond the min ack of the sync secondaries. +This trace flag applies to the instance of SQL Server, not just an availability group, an availability database, or a log reader instance. +Takes effect immediately without a restart. This trace flag can be activated ahead of time or when an async secondary fails.
+Link: [Docs Trace Flags]
+Scope: global only + + + +#### Trace Flag: 1449 Function: When you use SNAC to connect to an instance of a principal server in a database mirroring session: "The connection attempted to fail over to a server that does not have a failover partner".
-Link: https://support.microsoft.com/en-gb/kb/936179 +Link: https://support.microsoft.com/help/936179 + + + +#### Trace Flag: 1462 +Function: Disables log stream compression for asynchronous availability groups. +This feature is enabled by default on asynchronous availability groups in order to optimize network bandwidth.
+Link: [Tune compression for availability group]
+Link: [Docs Trace Flags]
+Link: http://www.sqlskills.com/blogs/paul/sql-server-2008-performance-boost-for-database-mirroring
+Link: http://sqlblog.com/blogs/joe_chang/archive/2014/03/13/hekaton-and-benchmarks.aspx
+Scope: global only -**Trace Flag: 1462**
-Function: Disable Mirroring Log compression
-Link: http://sqlcat.com/sqlcat/b/technicalnotes/archive/2007/09/17/database-mirroring-log-compression-in-sql-server-2008-improves-throughput.aspx + +#### Trace Flag: 1482 +Function: Prints information to the Error Log (3605 is not necessary) for a variety of transaction log operations are done, including when the MinLSN value is reset, when a VLF is formatted, etc.
+Link: None + + +#### Trace Flag: 1504 +Function: Dynamic memory grant expansion can also help with parallel index build plans where the distribution of rows across threads is uneven. +The amount of memory that can be consumed this way is not unlimited, however. +SQL Server checks each time an expansion is needed to see if the request is reasonable given the resources available at that time. +Some insight to this process can be obtained by enabling undocumented trace flag 1504, together with 3604 (for message output to the console) +or 3605 (output to the SQL Server error log). If the index build plan is parallel, only 3605 is effective because parallel workers cannot send trace messages cross-thread to the console.
+Link: [Internals of the Seven SQL Server Sorts – Part 1] -**Trace Flag: 1603**
+ + +#### Trace Flag: 1603 Function: Use standard disk I/O (i.e. turn off asynchronous I/O)
Link: None -**Trace Flag: 1604**
+ +#### Trace Flag: 1604 Function: Once enabled at start up makes SQL Server output information regarding memory allocation requests
Link: None -**Trace Flag: 1609**
+ +#### Trace Flag: 1609 Function: Turns on the unpacking and checking of RPC information in Open Data Services. Used only when applications depend on the old behavior.
Link: None -**Trace Flag: 1610**
+ +#### Trace Flag: 1610 Function: Boot the SQL dataserver with TCP_NODELAY enabled
Link: None -**Trace Flag: 1611**
+ +#### Trace Flag: 1611 Function: If possible, pin shared memory -- check errorlog for success/failure
Link: None -**Trace Flag: 1613**
+ +#### Trace Flag: 1613 Function: Set affinity of the SQL data server engine's onto particular CPUs -- usually pins engine 0 to processor 0, engine 1 to processor 1...
Link: None + +#### Trace Flag: 1615 +Function: Khen2005, page 385 (paraphrased): directs SQL to use threads instead of fiber even if the “lightweight pooling” config option is on. (Apparently, sometimes SQL wouldn’t start successfully when using lightweight pooling, and so this lets you get SQL up and running, so that you can turn the config option off)
+Link: None + -**Trace Flag: 1704**
+ +#### Trace Flag: 1704 Function: Prints information when a temporary table is created or dropped
Link: None -**Trace Flag: 1717**
+ +#### Trace Flag: 1717 Function: MSShipped bit will be set automatically at Create time when creating stored procedures
Link: None -**Trace Flag: 1802**
-Function: SQL 9 - After detaching a database that resides on network-attached storage, you cannot reattach the SQL Server database
-Link: https://support.microsoft.com/en-us/kb/922804 + +#### Trace Flag: 1800 +Function: Enables SQL Server optimization when disks of different sector sizes are used for primary and secondary replica log files, in SQL Server AG and Log Shipping environments.
+Link: https://support.microsoft.com/help/3009974
+Link: [Docs Trace Flags]
+Scope: global only -**Trace Flag: 1806**
-Function: Disable Instant File Initialization
-Link: http://technet.microsoft.com/en-au/library/cc917726.aspx + +#### Trace Flag: 1802 +Function: SQL 9 - After detaching a database that resides on network-attached storage, you cannot reattach the SQL Server database
+Link: https://support.microsoft.com/help/922804 -**Trace Flag: 1807**
-Function: Enable option to have database files on SMB share for SQL Server 2008 and 2008R2
-Link: http://blogs.msdn.com/b/varund/archive/2010/09/02/create-a-sql-server-database-on-a-network-shared-drive.aspx + +#### Trace Flag: 1806 +Function: Disable Instant File Initialization. +Used to guarantee the physical data file space acquisition during data file creation or expansion, on a thin provisioned subsystem
+Link: http://technet.microsoft.com/en-au/library/cc917726.aspx
+Link: https://blogs.msdn.microsoft.com/sql_pfe_blog/2009/12/22/how-and-why-to-enable-instant-file-initialization
+Link: http://www.sqlskills.com/blogs/paul/a-sql-server-dba-myth-a-day-330-instant-file-initialization-can-be-controlled-from-within-sql-server
+Link: https://support.microsoft.com/help/2574695/file-initialization-takes-a-long-time-for-sql-server-database-related-operations
+Link: [Important Trace Flags That Every DBA Should Know]
+Scope: ? -**Trace Flag: 1903**
-Function: SQL 8 - When you capture a SQL Profiler trace in a file and then you try to import the trace files into tables by using the fn_trace_gettable function no rows may be returned
-Link: https://support.microsoft.com/en-us/kb/911678 + +#### Trace Flag: 1807 +Function: Enable option to have database files on SMB share for SQL Server 2008 and 2008R2
+Link: http://blogs.msdn.com/b/varund/archive/2010/09/02/create-a-sql-server-database-on-a-network-shared-drive.aspx
+Link: https://support.microsoft.com/help/304261/description-of-support-for-network-database-files-in-sql-server -**Trace Flag: 2301**
-Function: Enable advanced decision support optimizations
-Link: http://support.microsoft.com/kb/920093 + +#### Trace Flag: 1808 +Function: Directs SQL Server to ignore auto-closing databases even if the Auto-close property is set to ON. Must be set globally. Present in Yukon forward
+Link: https://blogs.msdn.microsoft.com/ialonso/2012/04/11/want-your-sql-server-to-simply-ignore-the-auto_close-setting-for-all-open-databases-for-which-it-has-been-enabled -**Trace Flag: 2312**
-Function: Forces the query optimizer to use the SQL Server 2014 version -of the cardinality estimator when creating the query plan when running -SQL Server 2014 with database compatibility level 110
-Link: http://support.microsoft.com/kb/2801413 + +#### Trace Flag: 1810 +Function: Prints the file create/open/close timings
+Link: None -**Trace Flag: 2328**
-Function: SQL 9+ - Makes cardinality estimates upon resulting selectivity. The reasoning for this is that one or more of the constants may be statement parameters, which would change from one execution of the statement to the next.
+ +#### Trace Flag: 1816 +Function: Bob Ward briefly references this flag in his PASS 2014 SQL Server IO talk, saying that it “could provide more details around errors” that occur with IO done to SQL data files in Azure Storage.
Link: None -**Trace Flag: 2330**
-Function: Query performance decreases when sys.dm_db_index_usage_stats has large number of rows
-Link: https://support.microsoft.com/en-us/kb/2003031 -Link: http://www.brentozar.com/archive/2015/11/trace-flag-2330-who-needs-missing-index-requests/ + +#### Trace Flag: 1851 +Function: Anecdotally, from a JustDave’s notes on an Amanda Ford talk at SQL Relay Reading 2014: “...disables the automerge functionality for in-memory oltp”
+Link: https://justdaveinfo.wordpress.com/2014/10/16/october-13-microsoft-sql-relay-reading -**Trace Flag: 2335**
-Function: Generates Query Plans optimized for less memory
-Link: http://support.microsoft.com/kb/2413549 + +#### Trace Flag: 1903 +Function: SQL 8 - When you capture a SQL Profiler trace in a file and then you try to import the trace files into tables by using the fn_trace_gettable function no rows may be returned
+Link: Note -**Trace Flag: 2340**
-Function: Disable specific SORT optimization in Query Plan
-Link: http://support.microsoft.com/kb/2009160 + +#### Trace Flag: 1905 +Function: Unknown
+Link: [Upgrading an expired SQL Server 2016 Evaluation Edition] -**Trace Flag: 2371**
-Function: Change threshold for auto update stats
-Link: http://www.sqlservice.se/sv/start/blogg/sql-server--auto-update-stats-part-2.aspx
-Link: https://support.microsoft.com/en-us/kb/2754171 + +#### Trace Flag: 2301 +Function: Trace flag 2301 enables advanced optimizations that are specific to decision support queries. +This option applies to decision support processing of large data sets.
+Link: [KB920093]
+Link: [Docs Trace Flags]
+Link: http://www.queryprocessor.com/ce_join_base_containment_assumption
+Link: https://connect.microsoft.com/SQLServer/feedback/details/772232/make-optimizer-estimations-more-accurate-by-using-metadata
+Scope: global or session or query -**Trace Flag: 2372**
-Function: Displays memory utilization during the optimization process
-Link: http://www.benjaminnevarez.com/2012/04/more-undocumented-query-optimizer-trace-flags/ + +#### Trace Flag: 2309 +Function: In SQL 2014, enables output from a 3rd parameter for [DBCC SHOW_STATISTICS] such that the partial statistics histogram (for just one partition) is shown.
+Link: https://sqlperformance.com/2015/05/sql-statistics/incremental-statistics-are-not-used-by-the-query-optimizer
+Link: http://blog.dbi-services.com/sql-server-2014-new-incremental-statistics -**Trace Flag: 2373**
-Function: Displays memory utilization during the optimization process
-Link: http://www.benjaminnevarez.com/2012/04/more-undocumented-query-optimizer-trace-flags/ + +#### Trace Flag: 2312 +Function: Enables you to set the query optimizer cardinality estimation model to the SQL Server 2014 through SQL Server 2016 versions, dependent of the compatibility level of the database.
+Link: [KB2801413]
+Link: [New Features in SQL Server 2016 Service Pack 1]
+Link: [Docs Trace Flags]
+Link: http://www.sqlservergeeks.com/sql-server-2014-trace-flags-2312/
+Scope: global or session or query -**Trace Flag: 2388**
-Function: Change DBCC SHOW\_STATISTICS output to show stats history and -lead key type such as known ascending keys
-Link: http://www.benjaminnevarez.com/2013/02/statistics-on-ascending-keys + +#### Trace Flag: 2315 +Function: Aaron: I stumbled onto this one. Seems to output memory allocations taken during +the compilation process (and maybe the plan as well? “PROCHDR”), as well as +memory broker states & values at the beginning and end of compilation.
+Link: None -**Trace Flag: 2389**
-Function: Enable auto-quick-statistics update for known ascending keys
-Link: http://www.sqlservice.se/sv/start/blogg/sql-server-statistics--traceflags-2389--2390.aspx
-Link: http://blogs.msdn.com/b/ianjo/archive/2006/04/24/582227.aspx
-Link: http://www.sqlmag.com/article/tsql3/making-the-most-of-automatic-statistics-updating--96767 + +#### Trace Flag: 2318 +Function: Aaron: stumbled onto this one as well. I’ve only seen one type of output so far: “Optimization Stage: HEURISTICJOINREORDER”. Maybe useful in combo with other compilation trace flags to see the timing of join reordering?
+Link: None -**Trace Flag: 2390**
-Function: Enable auto-quick-statistics update for all columns
-Link: http://www.sqlservice.se/sv/start/blogg/sql-server-statistics--traceflags-2389--2390.aspx
-Link: http://blogs.msdn.com/b/ianjo/archive/2006/04/24/582227.aspx
-Link: http://www.sqlmag.com/article/tsql3/making-the-most-of-automatic-statistics-updating--96767 + +#### Trace Flag: 2324 +Function: Disables Implied Predicates
+Link: https://answers.sqlperformance.com/questions/2299/why-not-seek-predicate.html?utm_content=buffer9bed5&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer -**Trace Flag: 2430**
-Function: Fixes performance problem when using large numbers of locks
-Link: http://support.microsoft.com/kb/2754301/en-us + +#### Trace Flag: 2328 +Function: SQL 9+ - Makes cardinality estimates upon resulting selectivity. The reasoning for this is that one or more of the constants may be statement parameters, which would change from one execution of the statement to the next.
+Link: https://blogs.msdn.microsoft.com/ianjo/2006/03/28/disabling-constant-constant-comparison-estimation
+Link: http://www.queryprocessor.ru/isnumeric_ce_bug_eng -**Trace Flag: 2440**
-Function: SQL 10 - Parallel query execution strategy on partitioned tables. SQL 9 used single thread per partition parallel query execution strategy. In SQL 10, multiple threads can be allocated to a single partition by turning on this flag.
-Link: None + +#### Trace Flag: 2329 +Function: Disables “Few Outer Rows” optimization
+Link: http://www.queryprocessor.com/few-outer-rows-optimization -**Trace Flag: 2453**
-Function: Allow a table variable to trigger recompile when enough number of rows are changed with may allow the query optimizer to choose a more efficient plan.
-Link: http://sqlperformance.com/2014/06/t-sql-queries/table-variable-perf-fix
-Link: http://http//support.microsoft.com/kb/2952444 + +#### Trace Flag: 2330 +Function: Query performance decreases when sys.dm_db_index_usage_stats has large number of rows
+Link: http://www.brentozar.com/archive/2015/11/trace-flag-2330-who-needs-missing-index-requests/
+Link: https://chrisadkin.org/2015/04/14/well-known-and-not-so-well-known-sql-server-tuning-knobs-and-switches/ -**Trace Flag: 2470**
-Function: Fixes performance problem when using AFTER triggers on partitioned tables
-Link: http://support.microsoft.com/kb/2606883/en-us + +#### Trace Flag: 2332 +Function: PWhite: “Force DML Request Sort (CUpdUtil::FDemandRowsSortedForPerformance)”
+Link: http://sqlblog.com/blogs/paul_white/archive/2013/01/26/optimizing-t-sql-queries-that-change-data.aspx -**Trace Flag: 2505**
-Function: SQL 7 - Prevents DBCC TRACEON 208, SPID 10 errors from appearing in the error log
-Link: https://support.microsoft.com/en-us/kb/243352 + +#### Trace Flag: 2335 +Function: Causes SQL Server to assume a fixed amount of memory is available during query optimization. It does not limit the memory SQL Server grants to execute the query. +The memory configured for SQL Server will still be used by data cache, query execution and other consumers.
+**Note: Please ensure that you thoroughly test this option, before rolling it into a production environment.**
+Link: https://www.brentozar.com/archive/2018/08/how-trace-flag-2335-affects-memory-grants/
+Link: https://support.microsoft.com/help/2413549
+Link: [Docs Trace Flags]
+Link: http://dba.stackexchange.com/questions/53726/difference-in-execution-plans-on-uat-and-prod-server
+Scope: global or session or query -**Trace Flag: 2508**
-Function: Disables parallel non-clustered index checking for DBCC CHECKTABLE
+ +#### Trace Flag: 2336 +Function: Aaron: Another one that I stumbled onto. Appears to tie memory info and cached page likelihoods with costing
Link: None -**Trace Flag: 2509**
-Function: Used with DBCC CHECKTABLE to see the total count of forward records in a table
-Link: None - + +#### Trace Flag: 2340 +Function: Causes SQL Server not to use a sort operation (batch sort) for optimized nested loop joins when generating a plan. +Beginning with SQL Server 2016 SP1, to accomplish this at the query level, add the USE HINT query hint instead of using this trace flag.
+**Note: Please ensure that you thoroughly test this option, before rolling it into a production environment.**
+Link: [New Features in SQL Server 2016 Service Pack 1]
+Link: [Docs Trace Flags]
+Link: https://blogs.msdn.microsoft.com/psssql/2010/01/11/high-cpu-after-upgrading-to-sql-server-2005-from-2000-due-to-batch-sort
+Link: http://www.queryprocessor.com/batch-sort-and-nested-loops
+Scope: global or session or query -**Trace Flag : 2514**
-Function: Verbose Merge Replication logging to msmerge\_history table for troubleshooting Merger repl performance
-Link: http://sqlblog.com/blogs/argenis_fernandez/archive/2012/05/29/ghost-records-backups-and-database-compression-with-a-pinch-of-security-considerations.aspx + +#### Trace Flag: 2341 +Function: Enables the use of a hash join for joins to column store indexes even when the join clause would normally be removed “during query normalization”.
+Link: https://support.microsoft.com/help/3146123/query-plan-generation-improvement-for-some-columnstore-queries-in-sql-server-2014-or-2016 -**Trace Flag: 2520**
-Function: Forces DBCC HELP to return syntax of undocumented DBCC statements. If 2520 is not turned on, DBCC HELP will refuse to give you the syntax stating: "No help available for DBCC statement 'undocumented statement'". dbcc help ('?')
-Link: None + +#### Trace Flag: 2363 +Function: TF Selectivity
+Link: [Cardinality Estimation Framework 2014 First Look]
+Link: http://www.queryprocessor.com/ce-process
+Link: https://sqlperformance.com/2014/01/sql-plan/cardinality-estimation-for-multiple-predicates -**Trace Flag: 2521**
-Function: SQL 7 SP2 - Facilitates capturing a Sqlservr.exe user-mode crash dump for postmortem analysis
-Link: None + +#### Trace Flag: 2368 +**Undocumented trace flag**
+Function: For one query, this resulted in a parallel plan significantly more expensive than the naturally occurring serial plan. Could be related to trace flag 3651.
+Link: [New Undocumented Trace Flags]
+Scope: ? -**Trace Flag: 2528**
-Function: Disables parallelism in CHECKDB etc
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx
-Scope: global + +#### Trace Flag: 2371 +Function: Changes the fixed auto update statistics threshold to dynamic auto update statistics threshold.
+**Note: Beginning with SQL Server 2016 this behavior is controlled by the engine and trace flag 2371 has no effect.**
+Link: https://support.microsoft.com/help/2754171
+Link: http://blogs.msdn.com/b/saponsqlserver/archive/2011/09/07/changes-to-automatic-update-statistics-in-sql-server-traceflag-2371.aspx
+Link: https://blogs.msdn.microsoft.com/axinthefield/sql-server-trace-flag-2371-for-dynamics-ax/
+Link: [Docs Trace Flags]
+Scope: global only -**Trace Flag: 2529**
-Function: Displays memory usage for DBCC commands when used with TF -3604S
-Link: None + +#### Trace Flag: 2372 +Function: Displays memory utilization during the optimization process. Memory for Phases +Memory before and after deriving properties and rules (verbose)
+Link: [More Undocumented Query Optimizer Trace Flags]
+Link: [Cardinality Estimation Framework 2014 First Look]
+Link: [Query Optimizer Deep Dive - Part 4] -**Trace Flag: 2537**
-Function: Allows you to see inactive records in transaction log using -fn\_dblog
-Link: http://www.sqlsoldier.com/wp/sqlserver/day19of31daysofdisasterrecoveryhowmuchlogcanabackuplog + +#### Trace Flag: 2373 +Function: Displays memory utilization during the optimization process. Memory for Deriving Properties.
+Link: [More Undocumented Query Optimizer Trace Flags]
+Link: [Cardinality Estimation Framework 2014 First Look] -**Trace Flag: 2540**
-Function: Unknown, but related to controlling the contents of a memory dump
-Link: http://support.microsoft.com/kb/917825/en-us + +#### Trace Flag: 2374 +**Undocumented trace flag**
+Function: Removes QueryHash and QueryPlanHash information from estimated query plans.
+Link: [New Undocumented Trace Flags]
+Scope: ? -**Trace Flag: 2541**
-Function: Unknown, but related to controlling the contents of a memory dump
-Link: http://support.microsoft.com/kb/917825/en-us + +#### Trace Flag: 2382 +Function: SSC: “SQL 8 -Statistics collected for system tables.”
+Link: None -**Trace Flag: 2542**
-Function: Unknown, but related to controlling the contents of a memory dump
-Link: http://support.microsoft.com/kb/917825/en-us + +#### Trace Flag: 2387 +**Undocumented trace flag**
+Function: There was a small change in CPU and IO costs for some operators. Full effect unknown.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 2388 +Function: Changes the output of [DBCC SHOW_STATISTICS]. +Instead of the normal Header/Vector/Histogram output, instead we get a single row that gives information related to whether the lead column of the stat object is considered to be ascending or not. +This TF is primarily helpful in watching the state of a stat object change from “Unknown”, to “Ascending” (and potentially to “Stationary”). +Also In SQL Server, if you want to see the information of last four statistics update on a statistics object then you can use trace flag 2388. +In simple words, we can say that this trace flag provide us the historical information about statistics update.
+Link: [SQL Server - estimates outside of the histogram - half-baked draft]
+Link: http://www.sqlservergeeks.com/sql-server-trace-flag-2388/
+Link: [Fun with SQL Server Plan Cache, Trace Flag 8666, and Trace Flag 2388]
+Scope: session only + + + +#### Trace Flag: 2389 +Function: Enable automatically generated quick statistics for ascending keys (histogram amendment). +If trace flag 2389 is set, and a leading statistics column is marked as ascending, then the histogram used to estimate cardinality will be adjusted at query compile time.
+Link: [KB2801413]
+Link: http://blogs.msdn.com/b/ianjo/archive/2006/04/24/582227.aspx
+Link: http://www.sqlmag.com/article/tsql3/making-the-most-of-automatic-statistics-updating--96767
+Link: http://sqlperformance.com/2016/07/sql-statistics/trace-flag-2389-new-cardinality-estimator
+Link: https://www.sswug.org/sswugresearch/community/trace-flag-2389-and-the-new-cardinality-estimator/
+Link: [New Features in SQL Server 2016 Service Pack 1]
+Link: [Docs Trace Flags]
+Link: [SQL Server - estimates outside of the histogram - half-baked draft]
+Link: http://www.sqlservergeeks.com/sql-server-trace-flag-2389/
+Scope: global or session or query + + + +#### Trace Flag: 2390 +Function: Enable automatically generated quick statistics for ascending or unknown keys (histogram amendment). +If trace flag 2390 is set, and a leading statistics column is marked as ascending or unknown, then the histogram used to estimate cardinality will be adjusted at query compile time
+Link: http://blogs.msdn.com/b/ianjo/archive/2006/04/24/582227.aspx
+Link: [KB2801413]
+Link: http://www.sqlmag.com/article/tsql3/making-the-most-of-automatic-statistics-updating--96767
+Link: [Docs Trace Flags]
+Link: https://blogs.msdn.microsoft.com/ianjo/2006/04/24/ascending-keys-and-auto-quick-corrected-statistics
+Link: [SQL Server - estimates outside of the histogram - half-baked draft]
+Link: http://www.sqlservergeeks.com/sql-server-trace-flag-2390/ +Scope: global or session or query -**Trace Flag: 2543**
-Function: Unknown, but related to controlling the contents of a memory dump
-Link: http://support.microsoft.com/kb/917825/en-us + +#### Trace Flag: 2392 +**Undocumented trace flag**
+Function: Trace Flag 2392 can be used to turn the missing index feature off completely (as a workaround to the issue that is corrected by the hotfix). +This trace flag has been in the product since SQL Server 2005. +The problem is, it will not disable/enable missing index stats collection unless it is enabled at startup. +If you set it as a startup TF and restart SQL Server, then no missing index stats are collected. +If you then subsequently disable TF 2392 while SQL Server is running, it still won’t collect any missing index stats (despite what you may expect).
+Link: https://www.sqlskills.com/blogs/glenn/sql-server-missing-indexes-feature-and-trace-flag-2392/
+Link: https://support.microsoft.com/help/4042232/fix-access-violation-when-you-cancel-a-pending-query-if-the-missing-in
+Scope: global only + + + +#### Trace Flag: 2398 +Function: Another one I stumbled upon myself...outputs info about “Smart Seek costing”: e.g.: “Smart seek costing (75.2) :: 1.34078e+154 , 1”
+Link: None -**Trace Flag: 2544**
-Function: Produces a full memory dump
-Link: http://support.microsoft.com/kb/917825/en-us + +#### Trace Flag: 2399 +**Undocumented trace flag**
+Function: Small changes in operator costs were observed for some queries. These were typically less than 0.01 units.
+Link: [New Undocumented Trace Flags]
+Scope: ? -**Trace Flag: 2545**
-Function: Unknown, but related to controlling the contents of a -memory dump
-Link: http://support.microsoft.com/kb/917825/en-us + +#### Trace Flag: 2418 +**Undocumented trace flag**
+Function: Disables serial Batch mode processing.
+Link: [New Undocumented Trace Flags]
+Scope: ? -**Trace Flag: 2546**
-Function: Dumps all threads for SQL Server in the dump file
-Link: http://support.microsoft.com/kb/917825/en-us + +#### Trace Flag: 2422 +Function: Enables the SQL Server Database Engine to abort a request when the maximum time set by Resource Governor REQUEST_MAX_CPU_TIME_SEC configuration is exceeded.
+**Note: This trace flag applies to SQL Server 2017 CU3 and higher builds.**
+Link: https://support.microsoft.com/help/4038419
+Scope: global only -**Trace Flag: 2547**
-Function: Unknown, but related to controlling the contents of a -memory dump
-Link: http://support.microsoft.com/kb/917825/en-us + +#### Trace Flag: 2430 +Function: Fixes performance problem when using large numbers of locks
+Link: https://support.microsoft.com/help/2754301
+Link: https://support.microsoft.com/help/2746341/fix-high-cpu-usage-when-you-execute-an-update-statement-that-includes-a-where-current-of-cursor-clause-in-sql-server-2008 -**Trace Flag: 2548**
-Function: Shrink will run faster with this trace flag if there are LOB pages that need conversion and/or compaction, because that actions will be skipped.
-Link: http://blogs.msdn.com/b/psssql/archive/2008/03/28/how-it-works-sql-server-2005-dbcc-shrink-may-take-longer-than-sql-server-2000.aspx -*Thanks to: Andrzej Kukula* + +#### Trace Flag: 2440 +Function: SQL 10 - Parallel query execution strategy on partitioned tables. SQL 9 used single thread per partition parallel query execution strategy. In SQL 10, multiple threads can be allocated to a single partition by turning on this flag.
+Link: https://social.msdn.microsoft.com/Forums/sqlserver/en-US/dc010af9-afa0-4c87-937c-4343b4e1119a/trace-flag-2440 -**Trace Flag: 2549**
-Function: Faster CHECKDB
-Link: http://www.sqlservice.se/sv/start/blogg/faster-dbcc-checkdb-by-using-trace-flag-2562-and-2549.aspx
-Link: http://blogs.msdn.com/b/saponsqlserver/archive/2011/12/22/faster-dbcc-checkdb-released-in-sql-2008-r2-sp1-traceflag-2562-amp-2549.aspx
-Link: http://support.microsoft.com/kb/2634571
-Link: http://support.microsoft.com/kb/2732669/en-us + +#### Trace Flag: 2453 +Function: Allow a table variable to trigger recompile when enough number of rows are changed with may allow the query optimizer to choose a more efficient plan.
+**Note: Please ensure that you thoroughly test this option, before rolling it into a production environment.**
+Link: http://sqlperformance.com/2014/06/t-sql-queries/table-variable-perf-fix
+Link: https://support.microsoft.com/help/2952444
+Link: [Docs Trace Flags]
+Link: https://www.brentozar.com/archive/2017/02/using-trace-flag-2453-improve-table-variable-performance
+Link: https://www.brentozar.com/archive/2018/03/table-valued-parameters-unexpected-parameter-sniffing
+Link: [TEMPDB – Files and Trace Flags and Updates]
+Link: http://www.sqlservergeeks.com/the-correct-cardinality-estimation-for-table-variable-using-trace-flag-2543/
+Scope: global or session or query + + + +#### Trace Flag: 2456 +Function: Relieves RESOURCE_SEMAPHORE_MUTEX contention, which may be primarily due to a bug in SQL 2005.
+Link: None -**Trace Flag: 2550**
-Function: Unknown, but related to controlling the contents of a -memory dump
-Link: http://support.microsoft.com/kb/917825/en-us + +#### Trace Flag: 2466 +Function: When SQL Server is determining the runtime DOP for a parallel plan, this flag directs it to use logic found in “older versions” (the post doesn’t say which versions) to +determine which NUMA node to place the parallel plan on. This older logic relies on a polling mechanism (roughly every 1 second), and can result in race conditions where 2 +parallel plans end up on the same node. The newer logic “significantly reduces” the likelihood of this happening.
+Link: https://blogs.msdn.microsoft.com/psssql/2013/09/27/how-it-works-maximizing-max-degree-of-parallelism-maxdop -**Trace Flag: 2551**
-Function: Produces a filtered memory dump
-Link: http://support.microsoft.com/kb/917825/en-us + +#### Trace Flag: 2467 +Function: “If target MAXDOP target is less than a single node can provide and if trace flag 2467 is enabled attempt to locate least loaded node”
+Link: https://blogs.msdn.microsoft.com/psssql/2013/09/27/how-it-works-maximizing-max-degree-of-parallelism-maxdop
+Link: [SQL Server Parallel Query Placement Decision Logic] -**Trace Flag: 2552**
-Function: Unknown, but related to controlling the contents of a -memory dump
-Link: http://support.microsoft.com/kb/917825/en-us + +#### Trace Flag: 2468 +**Undocumented trace flag**
+Function: “Find the next node that can service the DOP request. Unlike full mode, the global, resource manager keeps track of the last node used. +Starting from the last position, and moving to the next node, SQL Server checks for query placement opportunities. +If a node can’t support the request SQL Server continues advancing nodes and searching.”
+Link: [SQL Server Parallel Query Placement Decision Logic] -**Trace Flag: 2553**
+ +#### Trace Flag: 2470 +**Undocumented trace flag**
+Function: Fixes performance problem when using AFTER triggers on partitioned tables
+Link: https://support.microsoft.com/help/2606883 + + + +#### Trace Flag: 2479 +**Undocumented trace flag**
+Function: When SQL Server is determining the runtime DOP for a parallel plan, this flag directs it to limit the NUMA Node placement for the query to the node that the connection is associated with.
+Link: https://blogs.msdn.microsoft.com/psssql/2013/09/27/how-it-works-maximizing-max-degree-of-parallelism-maxdop
+Link: [SQL Server Parallel Query Placement Decision Logic] + + + +#### Trace Flag: 2486 +**Undocumented trace flag**
+Function: In SQL 2016 (CTP 3.0 at least), enables output for the “query_trace_column_values” Extended Event, allowing the value of output columns from individual plan iterators to be traced.
+Link: http://www.queryprocessor.com/query-trace-column-values + + + +**Undocumented trace flag**
+#### Trace Flag: 2505 +Function: SQL 7 - Prevents DBCC TRACEON 208, SPID 10 errors from appearing in the error log (Note: DBCC TRACEON(208) just means “SET QUOTED IDENTIFIER ON”)
+Link: None + + + +#### Trace Flag: 2508 +**Undocumented trace flag**
+Function: Disables parallel non-clustered index checking for DBCC CHECKTABLE
+Link: None + + + +#### Trace Flag: 2509 +**Undocumented trace flag**
+Function: Used with `DBCC CHECKTABLE` to see the total count of forward records in a table
+Link: None + + + +#### Trace Flag: 2514 +**Undocumented trace flag**
+Function: Verbose Merge Replication logging to msmerge\_history table for troubleshooting Merger repl performance
+Link: http://sqlblog.com/blogs/argenis_fernandez/archive/2012/05/29/ghost-records-backups-and-database-compression-with-a-pinch-of-security-considerations.aspx + + + +#### Trace Flag: 2520 +**Undocumented trace flag**
+Function: For SQL Server prior 2005. Forces DBCC HELP to return syntax of undocumented DBCC statements. +If 2520/2588 is not turned on, DBCC HELP will refuse to give you the syntax stating: "No help available for DBCC statement 'undocumented statement'". +Also affects dbcc help ('?')
+Link: http://www.sqlskills.com/blogs/paul/dbcc-writepage/
+Scope: session only + + + +#### Trace Flag: 2521 +**Undocumented trace flag**
+Function: SQL 7 SP2 - Facilitates capturing a Sqlservr.exe user-mode crash dump for postmortem analysis
+Link: None + + + +#### Trace Flag: 2469 +Function: Enables alternate exchange for `INSERT INTO ... SELECT` into a partitioned columnstore index.
+Link: [Docs Trace Flags]
+Link: https://support.microsoft.com/help/3204769/
+Scope: global or session or query + + + +#### Trace Flag: 2528 +Function: Disables parallel checking of objects by `DBCC CHECKDB`, `DBCC CHECKFILEGROUP`, and `DBCC CHECKTABLE`. +By default, the degree of parallelism is automatically determined by the query processor. +The maximum degree of parallelism is configured just like that of parallel queries. +For more information, see [Configure the max degree of parallelism Server Configuration Option](https://msdn.microsoft.com/en-us/library/ms189094.aspx). +Parallel `DBCC` should typically be left enabled. +For `DBCC CHECKDB`, the query processor reevaluates and automatically adjusts parallelism with each table or batch of tables checked. +Sometimes, checking may start when the server is almost idle. +An administrator who knows that the load will increase before checking is complete may want to manually decrease or disable parallelism. +Disabling parallel checking of DBCC can cause `DBCC` to take much longer to complete and if `DBCC` is run with the `TABLOCK` feature enabled and parallelism set off, tables may be locked for longer periods of time.
+Link: [Docs Trace Flags]
+Link: https://technet.microsoft.com/en-us/library/ms189094.aspx
+Link: http://www.sqlskills.com/blogs/paul/checkdb-from-every-angle-how-long-will-checkdb-take-to-run
+Link: [Important Trace Flags That Every DBA Should Know]
+Scope: global or session + + + +#### Trace Flag: 2529 +**Undocumented trace flag**
+Function: Displays memory usage for DBCC commands when used with TF 3604
+Link: None + + + +#### Trace Flag: 2536 +**Undocumented trace flag**
+Function: Allows you to see inactive records in transaction log using fn\_dblog. +Similar to trace flag 2537 for older version than SQL Server 2008.
+Link: http://www.sqlsoldier.com/wp/sqlserver/day19of31daysofdisasterrecoveryhowmuchlogcanabackuplog + + + +#### Trace Flag: 2537 +**Undocumented trace flag**
+Function: Allows you to see inactive records in transaction log using fn\_dblog
+Link: http://www.sqlsoldier.com/wp/sqlserver/day19of31daysofdisasterrecoveryhowmuchlogcanabackuplog
+Link: http://www.sqlskills.com/blogs/paul/finding-out-who-dropped-a-table-using-the-transaction-log
+Link: http://sqlserverandme.blogspot.ru/2014/03/how-to-view-transaction-log.html
+Scope: session only + + + +#### Trace Flag: 2540 +Function: Unknown, but related to controlling the contents of a memory dump
+Link: [KB917825] + + + +#### Trace Flag: 2541 +Function: Unknown, but related to controlling the contents of a memory dump
+Link: [KB917825] + + + +#### Trace Flag: 2542 +Function: Unknown, but related to controlling the contents of a memory dump
+Link: [KB917825]
+Link: [Controlling SQL Server memory dumps] + + + +#### Trace Flag: 2543 +Function: Unknown, but related to controlling the contents of a memory dump
+Link: [KB917825] + + + +#### Trace Flag: 2544 +Function: Produces a full memory dump
+Link: [KB917825]
+Link: https://blogs.msdn.microsoft.com/askjay/2010/02/05/how-can-i-create-a-dump-of-sql-server
+Link: https://social.msdn.microsoft.com/Forums/sqlserver/en-US/13ce4292-b8a7-41fa-a173-645693957d70/sqldumper?forum=sqldisasterrecovery&forum=sqldisasterrecovery + + + +#### Trace Flag: 2545 +Function: Unknown, but related to controlling the contents of a memory dump
+Link: [KB917825] + + + +#### Trace Flag: 2546 +Function: Dumps all threads for SQL Server in the dump file
+Link: [KB917825]
+Link: https://blogs.msdn.microsoft.com/askjay/2010/02/05/how-can-i-create-a-dump-of-sql-server
+Link: https://social.msdn.microsoft.com/Forums/sqlserver/en-US/13ce4292-b8a7-41fa-a173-645693957d70/sqldumper?forum=sqldisasterrecovery&forum=sqldisasterrecovery
+Link: https://blogs.msdn.microsoft.com/psssql/2008/09/12/sql-server-2000-2005-2008-recoveryrollback-taking-longer-than-expected + + + +#### Trace Flag: 2547 Function: Unknown, but related to controlling the contents of a memory dump
-Link: http://support.microsoft.com/kb/917825/en-us +Link: [KB917825] + + + +#### Trace Flag: 2548 +Function: Shrink will run faster with this trace flag if there are LOB pages that need conversion and/or compaction, because that actions will be skipped.
+Link: http://blogs.msdn.com/b/psssql/archive/2008/03/28/how-it-works-sql-server-2005-dbcc-shrink-may-take-longer-than-sql-server-2000.aspx + +*Thanks to: Andrzej Kukula* + + + +#### Trace Flag: 2549 +Function: Runs the DBCC CHECKDB command assuming each database file is on a unique disk drive. +DBCC CHECKDB command builds an internal list of pages to read per unique disk drive across all database files. +This logic determines unique disk drives based on the drive letter of the physical file name of each file.
+**Note: Do not use this trace flag unless you know that each file is based on a unique physical disk. +Although this trace flag improve the performance of the DBCC CHECKDB commands which target usage of the PHYSICAL_ONLY option, some users may not see any improvement in performance. +While this trace flag improves disk I/O resources usage, the underlying performance of disk resources may limit the overall performance of the DBCC CHECKDB command.**
+Link: http://blogs.msdn.com/b/saponsqlserver/archive/2011/12/22/faster-dbcc-checkdb-released-in-sql-2008-r2-sp1-traceflag-2562-amp-2549.aspx
+Link: https://support.microsoft.com/help/2634571
+Link: https://support.microsoft.com/help/2732669
+Link: [Docs Trace Flags]
+Scope: global only -**Trace Flag: 2554**
+ +#### Trace Flag: 2550 Function: Unknown, but related to controlling the contents of a memory dump
-Link: http://support.microsoft.com/kb/917825/en-us +Link: [KB917825] -**Trace Flag: 2555**
+ +#### Trace Flag: 2551 +Function: Produces a filtered memory dump
+Link: [KB917825]
+Link: https://connect.microsoft.com/SQLServer/feedback/details/477863/sql-server-is-terminating-because-of-fatal-exception-c0150014 + + + +#### Trace Flag: 2552 Function: Unknown, but related to controlling the contents of a memory dump
-Link: http://support.microsoft.com/kb/917825/en-us +Link: [KB917825] -**Trace Flag: 2556**
+ +#### Trace Flag: 2553 Function: Unknown, but related to controlling the contents of a memory dump
-Link: http://support.microsoft.com/kb/917825/en-us +Link: [KB917825] -**Trace Flag: 2557**
+ +#### Trace Flag: 2554 Function: Unknown, but related to controlling the contents of a memory dump
-Link: http://support.microsoft.com/kb/917825/en-us +Link: [KB917825] -**Trace Flag: 2558**
+ +#### Trace Flag: 2555 Function: Unknown, but related to controlling the contents of a memory dump
-Link: http://support.microsoft.com/kb/917825/en-us +Link: [KB917825] -**Trace Flag: 2559**
+ +#### Trace Flag: 2556 Function: Unknown, but related to controlling the contents of a memory dump
-Link: http://support.microsoft.com/kb/917825/en-us +Link: [KB917825] -**Trace Flag: 2562**
-Function: Faster CHECKDB
-Link: http://www.sqlservice.se/sv/start/blogg/faster-dbcc-checkdb-by-using-trace-flag-2562-and-2549.aspx
-Link: http://blogs.msdn.com/b/saponsqlserver/archive/2011/12/22/faster-dbcc-checkdb-released-in-sql-2008-r2-sp1-traceflag-2562-amp-2549.aspx
-Link: http://support.microsoft.com/kb/2634571
-Link: http://support.microsoft.com/kb/2732669/en-us + +#### Trace Flag: 2557 +Function: Unknown, but related to controlling the contents of a +memory dump
+Link: [KB917825] -**Trace Flag: 2588**
-Function: Get more information about undocumented DBCC commands
-Link: http://www.sqlservice.se/sv/start/blogg/trace-flag--undocumented-commands.aspx + +#### Trace Flag: 2558 +Function: Disables integration between CHECKDB and Watson
+Link: [KB917825]
+Link: [Controlling SQL Server memory dumps] -**Trace Flag: 2701**
+ +#### Trace Flag: 2559 +Function: Unknown, but related to controlling the contents of a +memory dump
+Link: [KB917825] + + + +#### Trace Flag: 2562 +Function: Runs the DBCC CHECKDB command in a single "batch" regardless of the number of indexes in the database. +By default, the DBCC CHECKDB command tries to minimize tempdb resources by limiting the number of indexes or "facts" that it generates by using a "batches" concept. +This trace flag forces all processing into one batch. +One effect of using this trace flag is that the space requirements for tempdb may increase. +Tempdb may grow to as much as 5% or more of the user database that is being processed by the DBCC CHECKDB command.
+**Note: Although this trace flag improve the performance of the DBCC CHECKDB commands which target usage of the PHYSICAL_ONLY option, some users may not see any improvement in performance. +While this trace flag improves disk I/O resources usage, the underlying performance of disk resources may limit the overall performance of the DBCC CHECKDB command.**
+Link: http://blogs.msdn.com/b/saponsqlserver/archive/2011/12/22/faster-dbcc-checkdb-released-in-sql-2008-r2-sp1-traceflag-2562-amp-2549.aspx
+Link: https://support.microsoft.com/help/2634571
+Link: https://support.microsoft.com/help/2732669
+Link: [Docs Trace Flags]
+Scope: global only + + + +#### Trace Flag: 2566 +Function: Runs the DBCC CHECKDB command without data purity check unless DATA_PURITY option is specified.
+**Note: Column-value integrity checks are enabled by default and do not require the DATA_PURITY option. +For databases upgraded from earlier versions of SQL Server, column-value checks are not enabled by default until DBCC CHECKDB WITH DATA_PURITY has been run error free on the database at least once. +After this, DBCC CHECKDB checks column-value integrity by default.**
+Link: [Docs Trace Flags]
+Link: https://sqlperformance.com/2012/11/io-subsystem/minimize-impact-of-checkdb
+Link: https://support.microsoft.com/help/2888996/fix-data-purity-corruption-in-sys.sysbinobjs-table-in-master-database-when-you-log-on-to-sql-server-by-using-the-sa-account-and-then-run-dbcc-checkdb
+Scope: global only + + + +#### Trace Flag: 2588 +Function: For SQL Server since 2005. Forces DBCC HELP to return syntax of undocumented DBCC statements. +If 2520/2588 is not turned on, DBCC HELP will refuse to give you the syntax stating: "No help available for DBCC statement 'undocumented statement'". +Also affects dbcc help ('?')
+Link: http://www.sqlskills.com/blogs/paul/dbcc-writepage/
+Scope: session only + + + +#### Trace Flag: 2701 Function: SQL 6.5 - Sets the @@ERROR system function to 50000 for RAISERROR messages with severity levels of 10 or less. When disabled, sets the @@ERROR system function to 0 for RAISERROR messages with severity levels of 10 or less
Link: None -**Trace Flag: 2861**
+ +#### Trace Flag: 2861 Function: Keep zero cost plans in cache. Tip: Avoid Using Trace Flag 2861 to Cache Zero-Cost Query Plan
-Link: http://support.microsoft.com/kb/325607
+Link: None -**Trace Flag: 3001**
-Function: Stops sending backup entries into MSDB
+#### Trace Flag: 2880, 2881 +Function: Both 2880 and 2881 are related to a SQL 2000 hotfix introduced to solve problems where ad-hoc queries would cause the procedure cache to get too big
Link: None -**Trace Flag: 3004**
-Function: Returns more info about Instant File Initialization. Shows information about backups and file creations use with 3605 to direct to error log.
-Link: https://blogs.msdn.microsoft.com/psssql/2008/01/23/how-it-works-what-is-restorebackup-doing/
-Link: http://victorisakov.files.wordpress.com/2011/10/sql_pass_summit_2011-important_trace_flags_that_every_dba_should_know-victor_isakov.pdf + +#### Trace Flag: 3001 +Function: Stops sending backup entries into MSDB
+Link: https://bytes.com/topic/sql-server/answers/162385-how-do-i-prevent-sql-2000-posting-message-event-viewer-application-log -**Trace Flag: 3014**
-Function: Returns more info about backups to the errorlog
-Link: http://victorisakov.files.wordpress.com/2011/10/sql_pass_summit_2011-important_trace_flags_that_every_dba_should_know-victor_isakov.pdf + +#### Trace Flag: 3004 +Function: Returns more info about Instant File Initialization. Shows information about backups and file creations use with [3605](#3605) to direct to error log. +Can be used to ensure that SQL Server has been configured to take advantage of IFI correctly.
+Link: https://blogs.msdn.microsoft.com/psssql/2008/01/23/how-it-works-what-is-restorebackup-doing/
+Link: [Important Trace Flags That Every DBA Should Know]
+Link: https://blogs.msdn.microsoft.com/sql_pfe_blog/2009/12/22/how-and-why-to-enable-instant-file-initialization/
+Link: [Undocumented Trace Flags: Inside the Restore Process]
+Scope: session only + + + +#### Trace Flag: 3014 +Function: Returns more info about backups to the errorlog: Backup activity, Restore activity , File creation.
+Link: [Important Trace Flags That Every DBA Should Know]
+Link: https://blogs.msdn.microsoft.com/psssql/2008/02/06/how-it-works-how-does-sql-server-backup-and-restore-select-transfer-sizes
+Link: [Undocumented Trace Flags: Inside the Restore Process]
+Link: [What’s CHECKDB doing in my database restore?]
+Scope: session only + + + +#### Trace Flag: 3023 + +Function: Enables CHECKSUM option as default for BACKUP command
+**Note: Beginning with SQL Server 2014 this behavior is controlled by setting the backup checksum default configuration option. +For more information, see [Server Configuration Options (SQL Server)](https://msdn.microsoft.com/en-us/library/ms189631.aspx)**.
+Link: https://support.microsoft.com/help/2656988
+Link: [Docs Trace Flags]
+Scope: global or session -**Trace Flag: 3023**
-Function: How to enable the CHECKSUM option if backup utilities do not expose the option
-Link: https://support.microsoft.com/kb/2656988 + +#### Trace Flag: 3028 +Function: Enables a hotfix for a problem encountered when backing up to tape with specific backup options
+Link: None -**Trace Flag: 3031**
+ +#### Trace Flag: 3031 Function: SQL 9 - Will turn the NO_LOG and TRUNCATE_ONLY options into checkpoints in all recovery modes
-Link: None +Link: http://www.sqlskills.com/blogs/paul/backup-log-with-no_log-use-abuse-and-undocumented-trace-flags-to-stop-it + + + +#### Trace Flag: 3034 +Function: Overrides the server default, and thus always forces backup compression unless the backup command had the no_compression clause explicitly present.
+Link: https://blogs.msdn.microsoft.com/ialonso/2012/02/24/vdi-backups-and-backup-compression-default + + + +#### Trace Flag: 3035 +Function: Overrides the server default to always avoid compression, unless the backup command explicitly uses the compression clause. If both 3034 and 3035 are enabled, 3035 takes precedence
+Link: https://blogs.msdn.microsoft.com/ialonso/2012/02/24/vdi-backups-and-backup-compression-default + + + +#### Trace Flag: 3039 +Function: As long as the SQL edition supports backup compression, this will allow VDI backups to be affected by the default compression setting just as non-VDI BACKUP commands are affected.
+Link: https://blogs.msdn.microsoft.com/ialonso/2012/02/24/vdi-backups-and-backup-compression-default + + +#### Trace Flag: 3042 +Function: Bypasses the default backup compression pre-allocation algorithm to allow the backup file to grow only as needed to reach its final size. This trace flag is useful if you need to save on space by allocating only the actual size required for the compressed backup. Using this trace flag might cause a slight performance penalty (a possible increase in the duration of the backup operation). +For more information about the pre-allocation algorithm, see [Backup Compression (SQL Server)](https://msdn.microsoft.com/en-us/library/bb964719.aspx).
+Link: [Docs Trace Flags]
+Link: https://support.microsoft.com/help/2001026/inf-space-requirements-for-backup-devices-in-sql-server
+Link: https://blogs.msdn.microsoft.com/psssql/2011/08/11/how-compressed-is-your-backup/
+Link: https://docs.microsoft.com/en-us/sql/relational-databases/backup-restore/backup-compression-sql-server
+Link: https://sqlstudies.com/2017/03/16/compressed-backup-errors-and-tf-3042/
+Scope: global only -**Trace Flag: 3042**
-Function: Alters backup compression functionality
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx + +#### Trace Flag: 3051 +Function: Enables SQL Server Backup to URL logging to a specific error log file.
+Link: [Docs Trace Flags]
+Link: https://msdn.microsoft.com/en-us/library/jj919149.aspx
+Scope: global only -**Trace Flag: 3101**
+ + +#### Trace Flag: 3057 +Function: Enables functionality after a hotfix that allows a log backup that was taken on a t-logfile hosted on a drive with “Bytes per physical sector”=512 to be restored onto a log file/drive that has “Bytes per physical sector”=4096
+Link: https://support.microsoft.com/help/2987585/restore-log-with-standby-mode-on-an-advanced-format-disk-may-cause-a-9004-error-in-sql-server-2008-r2-or-sql-server-2012 + + + +#### Trace Flag: 3101 Function: Fix performance problems when restoring database with CDC
-Link: http://support.microsoft.com/kb/2567366/ +Link: https://support.microsoft.com/help/2567366/ -**Trace Flag: 3104**
+ +#### Trace Flag: 3104 Function: Causes SQL Server to bypass checking for free space
-Link: None +Link: http://sqlblogcasts.com/blogs/martinbell/archive/2011/07/06/Mount-point-Permission-Issues.aspx
+Link: http://www.databasejournal.com/features/mssql/article.php/1547551/Troubleshooting-SQL-Server-BackupRestore-Problems.htm -**Trace Flag: 3106**
+ +#### Trace Flag: 3106 Function: Required to move sys databases
Link: None -**Trace Flag: 3111**
-Function: Cause LogMgr::ValidateBackedupBlock to be skipped during backup and restore operation
+ +#### Trace Flag: 3111 +Function: “FIX: Backup or Restore Using Large Transaction Logs May Return Error 3241” Causes LogMgr::ValidateBackedupBlock to be skipped during backup and restore operations, allowing backups of very large T-logs to succeed.
Link: None -**Trace Flag: 3117**
+ +#### Trace Flag: 3117 Function: QL 9 - SQL Server 2005 tries to restore the log files and the data files in a single step which some third-party snapshot backup utilities do not support. Turing on 3117 does things the SQL 8 way multiple-step restore process.
-Link: https://support.microsoft.com/en-us/kb/915385 +Link: None -**Trace Flag: 3205**
+ +#### Trace Flag: 3205 Function: Disable HW compression for backup to tape drives
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx
-Scope: global +Link: [Docs Trace Flags]
+Scope: global only -**Trace Flag: 3213**
-Function: Output buffer info for backups to ERRORLOG
-Link: http://sqlcat.com/sqlcat/b/technicalnotes/archive/2008/04/21/tuning-the-performance-of-backup-compression-in-sql-server-2008.aspx + +#### Trace Flag: 3207 +Function: Fixes SQL 6.5 so that tape drives work correctly with DUMP and LOAD statements
+Link: None -**Trace Flag: 3226**
-Function: Turns off ”Backup Successful” messages in errorlog
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx
-Scope: global + +#### Trace Flag: 3210 +Function: According to Bob Ward’s PASS 2014 talk on SQL Server IO, prints information about “collisions and wait times” that occur between the various “Asynchronous Disk Pool” threads during BACKUP (what about RESTORE?) operations.
+Link: None -*Thanks to: @lwiederstein (https://twitter.com/lwiederstein)* + +#### Trace Flag: 3212 +Function: Prints “Backup stats” to the SQL log
+Link: https://blogs.msdn.microsoft.com/ialonso/2012/10/24/why-does-restoring-a-database-needs-tempdb -**Trace Flag: 3422**
-Function: Log record auditing
-Link: http://technet.microsoft.com/en-au/library/cc917726.aspx + + +#### Trace Flag: 3213 +Function: Output buffer info for backups to ERRORLOG
+Link: https://blogs.msdn.microsoft.com/psssql/2008/02/06/how-it-works-how-does-sql-server-backup-and-restore-select-transfer-sizes
+Link: https://blogs.msdn.microsoft.com/psssql/2008/01/28/how-it-works-sql-server-backup-buffer-exchange-a-vdi-focus/
+Link: http://www.sqlservergeeks.com/sql-server-trace-flag-3213/
+Scope: global or session -**Trace Flag: 3231**
-Function: SQL 8/9 - Will turn the NO_LOG and TRUNCATE_ONLY options into no-ops in FULL/BULK_LOGGED recovery mode, and will clear the log in SIMPLE recovery mode. When set, BACKUP LOG with TRUNCATE_ONLY and BACKUP LOG with NO_LOG do not allow a log backup to run if the database's recovery model is FULL or BULK_LOGGED.
-Link: None + +#### Trace Flag: 3216 +Function: Prints quite a lot of info about RESTORE internals. Only seems to print to the error log (TF 3605 is required).
+Link: http://jamessql.blogspot.ru/2013/07/trace-flag-for-backup-and-restore.html -**Trace Flag: 3282**
-Function: SQL 6.5 - Used after backup restoration fails
-Link: https://support.microsoft.com/en-us/kb/215458 + +#### Trace Flag: 3222 +Function: Disables the read ahead that is used by the recovery operation during roll forward operations
+Link: [TECHNET List Of SQL Server Trace Flags] -**Trace Flag: 3422**
-Function: Cause auditing of transaction log records as they're read (during transaction rollback or log recovery). This is useful because there is no equivalent to page checksums for transaction log records and so no way to detect whether log records are being corrupted e careful with these trace flags - I don't recommend using them unless you are experiencing corruptions that you can't diagnose. Turning them on will cause a big CPU hit because of the extra auditing that's happening.
-Link: https://support.microsoft.com/en-us/kb/215458 + +#### Trace Flag: 3226 +Function: By default, every successful backup operation adds an entry in the SQL Server error log and in the system event log. +If you create very frequent log backups, these success messages accumulate quickly, resulting in huge error logs in which finding other messages is problematic. +With this trace flag, you can suppress these log entries. This is useful if you are running frequent log backups and if none of your scripts depend on those entries.
+Link: [Docs Trace Flags]
+Link: http://www.sqlskills.com/blogs/paul/fed-up-with-backup-success-messages-bloating-your-error-logs
+Link: https://blogs.msdn.microsoft.com/sqlserverstorageengine/2007/10/30/when-is-too-much-success-a-bad-thing
+Link: [Important Trace Flags That Every DBA Should Know]
+Scope: global only -**Trace Flag: 3502**
-Function: Writes info about checkpoints to teh errorlog
-Link: http://victorisakov.files.wordpress.com/2011/10/sql_pass_summit_2011-important_trace_flags_that_every_dba_should_know-victor_isakov.pdf + +#### Trace Flag: 3231 +Function: SQL 8/9 - Will turn the NO_LOG and TRUNCATE_ONLY options into no-ops in FULL/BULK_LOGGED recovery mode, and will clear the log in SIMPLE recovery mode. When set, BACKUP LOG with TRUNCATE_ONLY and BACKUP LOG with NO_LOG do not allow a log backup to run if the database's recovery model is FULL or BULK_LOGGED.
+Link: http://www.sqlskills.com/blogs/paul/backup-log-with-no_log-use-abuse-and-undocumented-trace-flags-to-stop-it
+Link: http://www.sqlskills.com/blogs/kimberly/understanding-backups-and-log-related-trace-flags-in-sql-server-20002005-and-2008
+Scope: ? -**Trace Flag: 3503**
-Function: Indicates whether the checkpoint at the end of automatic recovery was skipped for a database (this applies only to read-only databases)
-Link: http://www.sql-server-performance.com/2002/traceflags/ + +#### Trace Flag: 3282 +**Undocumented trace flag**
+Function: SQL 6.5 - Used after backup restoration fails
+Scope: ? -**Trace Flag: 3504**
-Function: For internal testing. Will raise a bogus log-out-of-space condition from checkpoint
-Link: None + +#### Trace Flag: 3400 +Function: Prints the recovery timings
+Link: https://connect.microsoft.com/SQLServer/feedback/details/392158/recovery-portion-of-sql-2008-restore-takes-much-longer-than-normal-when-restoring-from-sql-2005-backup -**Trace Flag: 3505**
-Function: Disables automatic checkpointing
-Link: http://support.microsoft.com/kb/815436 + +#### Trace Flag: 3408 +Function: This forces SQL Server startup to use a single thread when recovering all DBs at SQL Server startup, instead of running through its algorithm for determining how many threads to allocate to DB recovery
+Link: https://blogs.msdn.microsoft.com/ialonso/2012/10/08/how-much-is-crash-recovery-parallelized-in-which-order-are-databases-recovered/ -**Trace Flag: 3601**
-Function: Stack trace when error raised. Also see 3603.
+ +#### Trace Flag: 3412 +**Undocumented trace flag**
+Function: The KB article refers to SQL 6.5, but it is possible that the TF still prints out info to the SQL error log, so leaving it here for now. KB: “...reports when each transaction +is rolled forward or back [examine the error log for progress]. However, you will not see any progress if SQL Server is rolling a large transaction forward or back. Additionally, this trace flag duplicates +the sp_configure setting Recovery flags..."
Link: None -**Trace Flag: 3602**
-Function: Records all error and warning messages sent to the client
+ +#### Trace Flag: 3422 +Function: Cause auditing of transaction log records as they're read (during transaction rollback or log recovery). +This is useful because there is no equivalent to page checksums for transaction log records and so no way to detect whether log records are being corrupted e careful with these trace flags - I don't recommend using them unless you are experiencing corruptions that you can't diagnose. +Turning them on will cause a big CPU hit because of the extra auditing that's happening.
+Link: https://support.microsoft.com/help/215458
+Link: http://www.sqlskills.com/blogs/paul/how-to-tell-if-the-io-subsystem-is-causing-corruptions
+Link: http://technet.microsoft.com/en-au/library/cc917726.aspx
+Link: [Important Trace Flags That Every DBA Should Know]
+Scope: ? + + + +#### Trace Flag: 3427 +Function: Enables fix for issue when many consecutive transactions inserting data into temp table in SQL Server 2016 consume more CPU than in SQL Server 2014. Another change in SQL Server 2016 behavior that could impact tempdb-heavy workloads has to do with Common Criteria Compliance (CCC), also known as C2 auditing. We introduced functionality to allow for transaction-level auditing in CCC which can cause some additional overhead, particularly in workloads that do heavy inserts and updates in temp tables. Unfortunately, this overhead is incurred whether you have CCC enabled or not. In SQL Server 2016 you can enable trace flag 3427 to bypass this overhead starting with SP1 CU2. Starting in SQL Server 2017 CU4, we automatically bypass this code if CCC is disabled.
+Link: [Docs Trace Flags]
+Link: https://support.microsoft.com/help/3216543
+Link: [TEMPDB – Files and Trace Flags and Updates]
+Scope: global only + + + +#### Trace Flag: 3448 +Function: Introduced in the KB to fix a race condition leading to a hung database in mirroring failover situations. “ This trace flag forces new connections to keep checking for +database state every two seconds instead of waiting for a lock for infinite time. It helps ending the connection tasks faster as the mirroring reac +hes the start of the recovery phase and releasing more worker threads to be used by database mirroring.”
+Link: https://support.microsoft.com/help/2970421/ + + + +#### Trace Flag: 3449 +Function: If you enable global TF 3449 (and you are on SQL Server 2012 SP3 CU3 or later or SQL Server 2014 SP1 CU7 or later), +you will get much better performance by avoiding a FlushCache call in a number of different common scenarios, such as backup database, +backup transaction log, create database, add a file to a database, restore a transaction log, recover a database, shrink a database file, and a SQL Server “graceful” shutdown. +Link: https://support.microsoft.com/help/3158396/
+Link: https://blogs.msdn.microsoft.com/psssql/2017/06/29/sql-server-large-ram-and-db-checkpointing/
+Link: [Hidden Performance & Manageability Improvements in SQL Server 2012 / 2014]
+Scope: global only + + + +#### Trace Flag: 3459 +Function: Disables parallel redo. +Assume that you use an Always On availability group (AG) that contains heap tables. +Starting in SQL Server 2016, parallel thread for redo operations is used in secondary replicas. +In this case, heap tables redo operation may generate a runtime assert dump or the SQL Server may crash with an access violation error in some cases.
+**Note: This trace flag applies to SQL Server 2016 (13.x) and SQL Server 2017 (14.x).**
+Link: [Docs Trace Flags]
+Link: https://support.microsoft.com/help/3200975/
+Link: https://support.microsoft.com/help/4101554/
+Link: https://support.microsoft.com/help/4339858/
+Scope: global only + + + +#### Trace Flag: 3468 +Function: Disables [indirect checkpoints](https://docs.microsoft.com/en-us/sql/relational-databases/logs/database-checkpoints-sql-server?view=sql-server-2017#IndirectChkpt) on `tempdb`.
+**Note: This trace flag applies to SQL Server 2016 (13.x) SP1 CU5, SQL Server 2017 (14.x) CU1 and higher builds.**
+Link: [Docs Trace Flags]
+Scope: global only + + + +#### Trace Flag: 3499 +**Undocumented trace flag**
+Function: Provides a workaround for doing a rolling upgrade from SQL 2005 to SQL 2008 with a DB that has a full-text index
Link: None -**Trace Flag: 3603**
-Function: SQL Server fails to install on tricore, Bypass SMT check is enabled, flags are added via registry. Also see 3601.
-Link: None + +#### Trace Flag: 3502 +Function: Writes info about checkpoints to error log.
+Link: [Important Trace Flags That Every DBA Should Know]
+Link: https://blogs.msdn.microsoft.com/joaol/2008/11/20/sql-server-checkpoint-problems/
+Link: http://www.sqlskills.com/blogs/paul/a-sql-server-dba-myth-a-day-1530-checkpoint-only-writes-pages-from-committed-transactions/
+Scope: session only -**Trace Flag: 3604**
-Function: Redirect DBCC command output to query window
-Link: http://blogs.msdn.com/b/askjay/archive/2011/01/21/why-do-we-need-trace-flag-3604-for-dbcc-statements.aspx
-Link: http://www.sqlservice.se/sv/start/blogg/querytraceon.aspx + +#### Trace Flag: 3503 +Function: Indicates whether the checkpoint at the end of automatic recovery was skipped for a database (this applies only to read-only databases)
+Link: http://www.sql-server-performance.com/2002/traceflags/ -**Trace Flag: 3605**
-Function: Directs the output of some Trace Flags to the Errorlog
-Link: http://sqlcat.com/sqlcat/b/technicalnotes/archive/2008/04/21/tuning-the-performance-of-backup-compression-in-sql-server-2008.aspx + +#### Trace Flag: 3504 +Function: For internal testing. Will raise a bogus log-out-of-space condition from checkpoint
+Link: https://blogs.msdn.microsoft.com/joaol/2008/11/20/sql-server-checkpoint-problems/
+Link: http://www.sqlskills.com/blogs/paul/a-sql-server-dba-myth-a-day-1530-checkpoint-only-writes-pages-from-committed-transactions/ -**Trace Flag: 3607**
-Function: Skip recovery on startup
-Link: http://sqlkbs.blogspot.se/2008/01/trace-flag.html + +#### Trace Flag: 3505 +Function: Disables automatic checkpoints. +Setting trace flag 3505 may increase recovery time and can prevent log space reuse until the next checkpoint is issued. +Make sure to issue manual checkpoints on all read/write databases at appropriate time intervals. +"For high availability systems, such as clusters, Microsoft recommends that you do not change the recovery interval because it may affect data safety and availability."
+Link: http://www.sqlskills.com/blogs/paul/benchmarking-1-tb-table-population-part-2-optimizing-log-block-io-size-and-how-log-io-works/
+Link: [Important Trace Flags That Every DBA Should Know]
+Scope: ? -**Trace Flag: 3608**
-Function: Recover only Master db at startup
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx + +#### Trace Flag: 3601 +Function: Appears to disable CPU instruction prefetching. The Blog post to the right uses it, in concert with 3603, to enable SQL 2000 to run on a machine with a # of processors that is *not* a power of 2
+Link: https://blogs.msdn.microsoft.com/sqlserverfaq/2009/05/27/info-sql-2000-msde-installation-will-fail-if-you-have-number-of-cpus-on-a-box-which-is-not-in-power-of-2 -**Trace Flag: 3609**
-Function: Do not create tempdb at startup
-Link: http://basitaalishan.com/2012/02/20/essential-trace-flags-for-recovery-debugging/ + +#### Trace Flag: 3602 +Function: Records all error and warning messages sent to the client
+Link: https://support.microsoft.com/help/199037/ + + + +#### Trace Flag: 3603 +Function: Disables “Simultaneous Multithreading Processor check”. Used in concern with TF 3601 in the blog post to the right to enable SQL 2000 to run on a machine with a # of processors that is *not* a power of 2
+Link: https://blogs.msdn.microsoft.com/sqlserverfaq/2009/05/27/info-sql-2000-msde-installation-will-fail-if-you-have-number-of-cpus-on-a-box-which-is-not-in-power-of-2 -**Trace Flag: 3610**
+ +#### Trace Flag: 3604 +Function: Enables the output from a large number of trace flags and DBCC commands to be sent back to the client. +The Connect issue notes that problems can occur when using 3604 with a query that executes across a linked server. +[This CSS page](https://blogs.msdn.microsoft.com/psssql/2009/05/11/how-do-i-determine-which-dump-triggers-are-enabled/) points out that 3604 is necessary for DBCC DumpTrigger(‘display’)
+Link: http://blogs.msdn.com/b/askjay/archive/2011/01/21/why-do-we-need-trace-flag-3604-for-dbcc-statements.aspx
+Link: [Internals of the Seven SQL Server Sorts – Part 1]
+Link: https://connect.microsoft.com/SQLServer/feedback/details/306380/trace-flag-issue-7300-3604
+Link: [How to Find the Statistics Used to Compile an Execution Plan]
+Link: [A Row Goal Riddle]
+Link: [Undocumented Trace Flags: Inside the Restore Process]
+Link: [What’s CHECKDB doing in my database restore?]
+Scope: session only + + + +#### Trace Flag: 3605 +Function: Sends a variety of types of information to the SQL Server error log instead of to the user console. +Often referenced in KB and blog articles in the context of other trace flags (e.g. 3604).
+Link: https://blogs.msdn.microsoft.com/askjay/2011/01/21/why-do-we-need-trace-flag-3604-for-dbcc-statements/
+Link: [Undocumented Trace Flags: Inside the Restore Process]
+Link: [What’s CHECKDB doing in my database restore?]
+Scope: session only + + + +#### Trace Flag: 3607 +Function: Skip recovery on startup
+Link: http://sqlkbs.blogspot.se/2008/01/trace-flag.html
+Link: https://blogs.msdn.microsoft.com/ialonso/2012/10/24/why-does-restoring-a-database-needs-tempdb/ + + + +#### Trace Flag: 3608 +Function: Prevents SQL Server from automatically starting and recovering any database except the master database. +If activities that require tempdb are initiated, then model is recovered and tempdb is created. Other databases will be started and recovered when accessed. +Some features, such as snapshot isolation and read committed snapshot, might not work. +Use for Move System Databases and Move User Databases.
+**Note: Do not use during normal operation.**
+Link: [Docs Trace Flags]
+Link: [Importance of Performing DBCC CHECKDB on all SQL Server Databases]
+Link: https://blogs.msdn.microsoft.com/ialonso/2012/10/24/why-does-restoring-a-database-needs-tempdb
+Link: http://www.sqlservergeeks.com/sql-server-trace-flag-3608/
+Scope: global only + + + +#### Trace Flag: 3609 +Function: Recovering all databases, but not clearing tempdb
+Link: http://basitaalishan.com/2012/02/20/essential-trace-flags-for-recovery-debugging/
+Link: [Importance of Performing DBCC CHECKDB on all SQL Server Databases]
+Link: https://blogs.msdn.microsoft.com/ialonso/2012/10/24/why-does-restoring-a-database-needs-tempdb
+Scope: global only + + + +#### Trace Flag: 3610 Function: SQL 9 - Divide by zero to result in NULL instead of error
Link: None -**Trace Flag: 3625**
-Function: Masks some error messages
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx
-Scope: global + +#### Trace Flag: 3614 +Function: Modifies the order of startup operations so that SQL Server can successfully start up even if many user connections are being attempted during SQL startup
+Link: None -**Trace Flag: 3626**
+ +#### Trace Flag: 3625 +Function: Limits the amount of information returned to users who are not members of the sysadmin fixed server role, by masking the parameters of some error messages using '******'. +This can help prevent disclosure of sensitive information.
+Link: [Docs Trace Flags]
+Scope: global only + + + +#### Trace Flag: 3626 Function: Turns on tracking of the CPU data for the sysprocesses table.
Link: None -**Trace Flag: 3635**
-Function: Print diagnostic information. Trace Flag 3635 Diagnostics are written to the console that started it. There are not written to the errorlog, even if 3605 is turned on.
+ +#### Trace Flag: 3628 +Function: CSS’s mysterious description: “Includes ‘other errors’ in the dump based on a severity.”
+Link: [Controlling SQL Server memory dumps] + + + +#### Trace Flag: 3629 +Function: CSS: A memory dump will “include messages marked to include with this trace flag enabled.”
+Link: [Controlling SQL Server memory dumps] + + + +#### Trace Flag: 3635 +Function: Print diagnostic information. Trace Flag 3635 Diagnostics are written to the console that started it. +There are not written to the errorlog, even if 3605 is turned on.
Link: None -**Trace Flag: 3640**
+ +#### Trace Flag: 3640 Function: Eliminates sending DONE_IN_PROC messages to client for each statement in stored procedure. This is similar to the session setting of SET NOCOUNT ON, but when set as a trace flag, every client session is handled this way.
-Link: None +Link: https://blogs.msdn.microsoft.com/selvar/2010/07/13/delete-operation-from-a-reporting-service-2005-report-manager-fails-with-internalcatalogexception-and-throws-watson-mini-dump -**Trace Flag: 3654**
-Function:Allocations to stack
-Link: None + +#### Trace Flag: 3651 +**Undocumented trace flag**
+Function: Can cause stack dumps. For one query, this resulted in a parallel plan significantly more expensive than the naturally occurring serial plan.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + +#### Trace Flag: 3654 +Function: Apparently increases info found in the sys.dm_os_memory_allocations DMV (which appears to have replaced the DBCC MEMOBJLIST command) Bob Ward also discusses it in his PASS 2013 session, saying that it turns on tracing for all memory allocations done by “Memory Objects” (a specific SQLOS memory term). This flag will have a significant impact on system performance.
+Link: https://blogs.msdn.microsoft.com/psssql/2012/11/12/how-can-reference-counting-be-a-leading-memory-scribbler-cause
+Link: https://blogs.msdn.microsoft.com/slavao/2005/08/30/talking-points-around-memory-manager-in-sql-server-2005
+Link: https://support.microsoft.com/help/2888658/ -**Trace Flag: 3656**
+ + +#### Trace Flag: 3656 Function: Enables resolve of all call stacks in extended events
-Link: http://sqlcat.com/sqlcat/b/msdnmirror/archive/2010/05/11/resolving-dtc-related-waits-and-tuning-scalability-of-dtc.aspx +Link: http://sqlcat.com/sqlcat/b/msdnmirror/archive/2010/05/11/resolving-dtc-related-waits-and-tuning-scalability-of-dtc.aspx
+Link: [Controlling SQL Server memory dumps]
+Link: http://www.sqlskills.com/blogs/paul/determine-causes-particular-wait-type -**Trace Flag: 3659**
+ +#### Trace Flag: 3659 Function: Enables logging all errors to error log during server startup
-Link: http://spaghettidba.com/2011/05/20/trace-flag-3659/ +Link: http://spaghettidba.com/2011/05/20/trace-flag-3659/
+Link: [Change SQL Server Collation – Back to Basics]
+Scope: global only + + +#### Trace Flag: 3660 +Function: W/o this flag, for DBs that have Auto_Close=true and for DBs on Express Edition, DB recovery is normally deferred until first user access when SQL starts up. This TF forces +DB recovery to always run (well, only for DBs that actually need recovery done) at SQL Server startup.
+Link: https://blogs.msdn.microsoft.com/ialonso/2012/10/08/how-much-is-crash-recovery-parallelized-in-which-order-are-databases-recovered -**Trace Flag: 3688**
+ + +#### Trace Flag: 3663 +Function: CSS: “By default [SQL Server] allows system cache involvement [with writing to the SQL Error log] to avoid some of the performance issues you might be suspecting, but you can force it to use FILE_FLAG_WRITE_THROUGH” with TF 3663
+Link: http://blogs.msdn.com/b/psssql/archive/2011/01/07/discussion-about-sql-server-i-o.aspx + + + +#### Trace Flag: 3688 Function: Removes messages to error log about traces started and stopped
-Link: http://support.microsoft.com/kb/922578/en-us +Link: https://support.microsoft.com/help/922578 -**Trace Flag: 3689**
+ +#### Trace Flag: 3689 Function: Logs extended errors to errorlog when network disconnect occurs, turned off by default. Will dump out the socket error code this can sometimes give you a clue as to the root cause.
-Link: http://support.microsoft.com/kb/922578/en-us +Link: https://support.microsoft.com/help/922578 + + +#### Trace Flag: 3701 +Function: Unknown
+Link: [Upgrading an expired SQL Server 2016 Evaluation Edition] -**Trace Flag: 3801**
+ + +#### Trace Flag: 3801 Function: Prohibits use of USE DB statement
Link: None -**Trace Flag: 3913**
+ +#### Trace Flag: 3861 +Function: This flag allows the SQL Server DB startup code to move system tables to the primary filegroup. Introduced due to behavior in the SQL 2014 upgrade process, where system tables could be created in a secondary filegroup (if that FG was the default).
+Link: https://support.microsoft.com/help/3003760/ + + + +#### Trace Flag: 3913 Function: SQL 7/8 - SQL Server does not update the rowcnt column of the sysindexes system table until the transaction is committed. When turned on the optimizer gets row count information from in-memory metadata that is saved to sysindexes system table when the transaction commits.
Link: None -**Trace Flag: 3923**
+ +#### Trace Flag: 3917 +Function: According to Bob Ward’s PASS 2014 SQL Server IO talk, enables trace output (3605 is required) for the Eager Write functionality that is used with bulk logged operations (such as SELECT INTO)
+Link: None + + + +#### Trace Flag: 3923 Function: Let SQL Server throw an exception to the application when the 3303 warning message is raised
-Link: https://support.microsoft.com/kb/3014867/en-us +Link: https://support.microsoft.com/help/3014867 -**Trace Flag: 4001**
-Function: Very verbose logging of each login attempt to the error log. Includes tons of information
+ +#### Trace Flag: 3924 +Function: Enables a fix where “XA” transactions started within a JDBC-connected Java app are not closed properly and stay open indefinitely.
+Link: https://support.microsoft.com/help/3145492/ + + + +#### Trace Flag: 3940 +Function: According to Bob Ward’s PASS 2014 SQL Server IO talk, forces the Eager Write functionality to throttle at 1024 outstanding eager writes.
Link: None -**Trace Flag: 4010**
-Function: Allows only shared memory connections to the SQL Server. Meaning, you will only be able to connect from the server machine itself. Client connections over TCP/IP or named pipes will not happen.
+ +#### Trace Flag: 4001 +Function: Very verbose logging of each login attempt to the error log. Includes tons of information
Link: None -**Trace Flag: 4013**
-Function: Log each new connection the error log
-Link: http://sqlkbs.blogspot.se/2008/01/trace-flag.html + +#### Trace Flag: 4010 +Function: Allows only shared memory connections to the SQL Server. Meaning, you will only be able to connect from the server machine itself. +Client connections over TCP/IP or named pipes will not happen.
+Link: https://blogs.msdn.microsoft.com/sqlserverfaq/2011/05/11/inf-hey-my-sql-server-service-is-not-starting-what-do-i-do
+Link: https://blogs.msdn.microsoft.com/psssql/2008/09/05/sql-server-2005-setup-fails-in-wow-x86-on-computer-with-more-than-32-cpus
+Link: [Upgrading an expired SQL Server 2016 Evaluation Edition] + + + +#### Trace Flag: 4013 +Function: Trace flag 4013 write entries in error log whenever a new connection established. +These entries contain login name and SPID also.
+Link: http://sqlkbs.blogspot.se/2008/01/trace-flag.html
+Link: http://www.sqlservergeeks.com/sql-server-trace-flag-4013/
+Scope: global or session -**Trace Flag: 4020**
+ +#### Trace Flag: 4020 Function: Boot without recover
Link: None -**Trace Flag: 4022**
-Function: Bypass Startup procedures
-Link: http://www.sqlservice.se/sv/start/blogg/sql-server-2012-cu1-upgrade-step--msdb110_upgrade-sql--encountered-error-547.aspx + +#### Trace Flag: 4022 +Function: Directs the SQL instance to ignore stored procedures that have been configured as “auto-start” procedures. Their auto-start configuration is not affected, so the next time the instance is started w/o this flag they will return to their normal behavior.
+Link: https://blogs.msdn.microsoft.com/sqlserverfaq/2011/05/11/inf-hey-my-sql-server-service-is-not-starting-what-do-i-do/
+Link: [Upgrading an expired SQL Server 2016 Evaluation Edition]
+Link: [Change SQL Server Collation – Back to Basics]
+Scope: global only -**Trace Flag: 4029**
-Function: Logs extended errors to errorlog when network disconnect occurs, turned off by default. Will dump out the socket error code this can sometimes give you a clue as to the root cause.
-Link: None + +#### Trace Flag: 4029 +Function: Logs extended errors to errorlog when network disconnect occurs, turned off by default. +Will dump out the socket error code this can sometimes give you a clue as to the root cause.
+Link: https://blogs.msdn.microsoft.com/sql_protocols/2005/12/19/vss-sql-server-does-not-exist-or-access-denied -**Trace Flag: 4030**
-Function: Prints both a byte and ASCII representation of the receive buffer. Used when you want to see what queries a client is sending to SQL Server. You can use this trace flag if you experience a protection violation and want to determine which statement caused it. Typically, you can set this flag globally or use SQL Server Enterprise Manager. You can also use DBCC INPUTBUFFER.
-Link: None + +#### Trace Flag: 4030 +Function: Prints both a byte and ASCII representation of the receive buffer. +Used when you want to see what queries a client is sending to SQL Server. +You can use this trace flag if you experience a protection violation and want to determine which statement caused it. +Typically, you can set this flag globally or use SQL Server Enterprise Manager. +You can also use [DBCC INPUTBUFFER](https://docs.microsoft.com/en-us/sql/t-sql/database-console-commands/dbcc-inputbuffer-transact-sql).
+Link: http://www.sqlservergeeks.com/sql-server-trace-flag-4030/
+Scope: global only -**Trace Flag: 4031**
-Function: Prints both a byte and ASCII representation of the send buffers (what SQL Server sends back to the client). You can also use DBCC OUTPUTBUFFER.
-Link: None + +#### Trace Flag: 4031 +Function: Prints both a byte and ASCII representation of the send buffers (what SQL Server sends back to the client). +You can also use [DBCC OUTPUTBUFFER](https://docs.microsoft.com/en-us/sql/t-sql/database-console-commands/dbcc-outputbuffer-transact-sql).
+Link: http://www.sqlservergeeks.com/sql-server-trace-flag-4031/
+Scope: global only -**Trace Flag: 4032**
+ +#### Trace Flag: 4032 Function: Traces the SQL commands coming in from the client. When enabled with 3605 it will direct those all to the error log.
-Link: None +Link: https://support.microsoft.com/help/199037/
+Link: http://www.sqlservergeeks.com/sql-server-trace-flag-4032/
+Scope: global only -**Trace Flag: 4044**
+ +#### Trace Flag: 4044 Function: SA account can be unlocked by rebooting server with trace flag. If sa (or sso_role) password is lost, add this to your RUN_serverfile. This will generate new password when server started.
Link: None -**Trace Flag: 4052**
+ +#### Trace Flag: 4052 Function: SQL 9+ Prints TDS packets sent to the client (output) to console. Startup only.
Link: None -**Trace Flag: 4055**
+ +#### Trace Flag: 4055 Function: SQL 9+ Prints TDS packets received from the client to console. Startup only.
Link: None -**Trace Flag: 4102**
+ +#### Trace Flag: 4101 +Function: “FIX: Reorder outer joins with filter criteria before non-selective joins and outer joins” Enabling this flag may increase the chance that selective filter criteria on an OUTER +JOIN will influence the OJ earlier in the plan, rather than the more typical behavior of INNER JOINs being prioritized before OJs. Note that 4101 is also required to enable KB942444.
+Link: https://support.microsoft.com/help/318530/ + + + +#### Trace Flag: 4102 Function: SQL 9 - Query performance is slow if the execution plan of the query contains semi join operators Typically, semi join operators are generated when the query contains the IN keyword or the EXISTS keyword. Enable flag 4102 and 4118 to overcome this.
-Link: https://support.microsoft.com/en-us/kb/940128 +Link: https://support.microsoft.com/help/946020/ -**Trace Flag: 4104**
-Function: SQL 9 - Overestimating cardinality of JOIN operator. When additional join predicates are involved, this problem may increase the estimated cost of the JOIN operator to the point where the query optimizer chooses a different join order. When the query optimizer chooses a different join order, SQL 9 system performance may be slow.
-Link: https://support.microsoft.com/en-us/kb/920346 + +#### Trace Flag: 4103 +Function: “FIX: A query may take longer to run in SQL Server 2005 SP1 than it takes to run in the original release version of SQL Server 2005 or in SQL +Server 2000” Applies particularly to queries that contain subqueries with “many column joins”.
+Link: None -**Trace Flag: 4107**
-Function: SQL 9 - When you run a query that references a partitioned table, query performance may decrease
-Link: https://support.microsoft.com/en-us/kb/923849 + +#### Trace Flag: 4104 +Function: SQL 9 - Overestimating cardinality of JOIN operator. When additional join predicates are involved, this problem may increase the estimated cost of the JOIN operator to the point where the query optimizer chooses a different join order. When the query optimizer chooses a different join order, SQL 9 system performance may be slow.
+Link: None -**Trace Flag: 4116**
-Function: SQL 9 - Query runs slowly when using joins between a local and a remote table
-Link: https://support.microsoft.com/en-us/kb/950880 + +#### Trace Flag: 4105 +Function: “FIX: The SQL Server 2005 query optimizer may incorrectly estimate the cardinality for a query that has a predicate that contains an index union alternative”
+Link: None -**Trace Flag: 4121**
-Function: SQL 9 - Query that involves an outer join operation runs very slowly. However, if you use the FORCE ORDER query hint in the query, the query runs much faster. Additionally, the execution plan of the query contains the following text in the Warnings column: NO JOIN PREDICATE.
+ +#### Trace Flag: 4106 +Function: “FIX: A query may take a long time to compile when the query contains several JOIN clauses against a SQL Server 2005 database”
Link: None -**Trace Flag: 4123**
-Function: Query that has many outer joins takes a long time to compile in SQL Server 2005
-Link: https://support.microsoft.com/en-us/kb/943060 + +#### Trace Flag: 4107 +Function: SQL 9 - When you run a query that references a partitioned table, query performance may decrease
+Link: None -**Trace Flag: 4125**
-Function: SQL 9 - Query may take more time to finish if using an inner join to join a derived table that uses DISTINCT keyword
-Link: https://support.microsoft.com/en-us/kb/949854 + +#### Trace Flag: 4108 +Function: “FIX: The query performance is very slow when you use a fast forward-only cursor to run a query in SQL Server 2005”
+Link: None -**Trace Flag: 4127**
-Function: SQL 9 - Compilation time of some queries is very long in an x64-based version. Basically its more than execution time because more memory allocations are necessary in the compilation process.
-Link: https://support.microsoft.com/en-us/kb/953569 + +#### Trace Flag: 4109 +Function: “FIX: Error message when you run a query that uses a fast forward-only cursor in SQL Server 2005: "Query processor could not produce a query plan because of the hints defined in this query”
+Link: https://support.microsoft.com/help/926773/ -**Trace Flag: 4130**
-Function: XML performance fix
-Link: http://support.microsoft.com/kb/957205 + +#### Trace Flag: 4110 +Function: “FIX: The query performance is slow when you run a query that uses a user-defined scalar function against an instance of SQL Server 2005”
+Link: None -**Trace Flag: 4134**
-Function: Bugfix for error: parallel query returning different results every time
-Link: http://support.microsoft.com/kb/2546901
-Link: http://sql-sasquatch.blogspot.se/2014/04/whaddayaknow-bout-sqlserver-trace-flag.html + +#### Trace Flag: 4111 +Function: Fixes a cardinality estimate issue with an unnamed builtin function. The KB article title shows that the issue was initially hit due to timeouts with the Replication Merge agent, but the problem was ultimately a poor query plan.
+Link: None -**Trace Flag: 4135**
-Function: Bugfix for error inserting to temp table
-Link: http://support.microsoft.com/kb/960770 + +#### Trace Flag: 4112 +Function: Enables a fix for a problem that occurs when a linked server from 2005 or 2008 targets SQL 2000: “This problem occurs because SQL Server 2005 generates an +execution plan that has a remote query. SQL Server 2005 must execute the remote query against SQL Server 2000 to retrieve the required data. SQL Server 2000 cannot +handle the remote query. Therefore, error 107 occurs in SQL Server 2000. Then, error 107 is propagated back to SQL Server 2005. Therefore, error 107 occurs in SQL Server +2005, and error 8180 occurs in SQL Server 2005.”
+Link: https://support.microsoft.com/help/936223/ -**Trace Flag: 4136**
-Function: Parameter Sniffing behaviour alteration
-Link: http://blogs.msdn.com/b/axinthefield/archive/2010/11/04/sql-server-trace-flags-for-dynamics-ax.aspx
-Link: http://www.sqlservice.se/sv/start/blogg/nagra-trace-flags-for-sql-server.aspx + +#### Trace Flag: 4115 +Function: “FIX: A query that you run by using a FORWARD_ONLY cursor takes alonger time to run in Microsoft SQL Server 2005 than in SQL Server 2000 ”The fix apparently increases the likelihood that a certain type of cursor will use an index seek (as it did in SQL 2000) rather than regressing to a scan for each Fetch. The notes also contain some interesting info about sp_cursoropen
+Link: None -**Trace Flag: 4137**
-Function: Fix for bad performance in queries with several AND criteria
-Link: http://support.microsoft.com/kb/2658214 + +#### Trace Flag: 4116 +Function: SQL 9 - Query runs slowly when using joins between a local and a remote table
+Link: None -**Trace Flag: 4138**
-Function: Fixes performance problems with certain queries that use TOP -statement
-Link: http://support.microsoft.com/kb/2667211 + +#### Trace Flag: 4117 +Function: “FIX: A blocking issue occurs when you update rows in a table in SQL Server 2005...[A] problem occurs because the positioned update in a transaction performs a table scan on all involved tables. This behavior causes many update locks to be generated on many rows in the table. Additionally, SQL Server tries to add an update lock on the ow that has already been granted an exclusive lock by another transaction. Therefore, a blocking issue occurs.”
+Link: None -**Trace Flag: 4199**
-Function: Turn on all optimizations
-Link: http://www.sqlservice.se/sv/start/blogg/one-trace-flag-to-rule-them-all.aspx
-Link: https://msdn.microsoft.com/en-us/library/bb510411.aspx#TraceFlag
-Scope: global or session + +#### Trace Flag: 4119 +Function: “FIX: The query performance is slower when you run the query in SQL Server 2005 than when you run the query in SQL Server 2000” The example given in the KB article indicates that selective LIKE predicates may not be considered fully when less-selective “comparison” (e.g. =, >, etc) predicates are done on the same parameter (or variable?) value as the LIKE predicate.
+Link: None -**Trace Flag: 4606**
-Function: Over comes SA password by startup. Disables password policy check during server startup.
-Link: https://support.microsoft.com/en-us/kb/936892 + +#### Trace Flag: 4120 +Function: “FIX: Error message when you perform an update operation by using a cursor in SQL Server 2005: Transaction (Process ID ) was deadlocked on lock resources with another process and has been chosen as the deadlock victim” This issue is apparently due to deadlock issues related to upgrading a U lock to an X lock.
+Link: https://support.microsoft.com/help/953948/ -**Trace Flag: 4610**
-Function: When you use trace flag 4618 together with trace flag 4610, the number of entries in the cache store is limited to 8,192. When the limit is reached, SQL 2005 removes some entries from the TokenAndPermUserStore cache store.
-Link: https://support.microsoft.com/en-us/kb/959823 + +#### Trace Flag: 4121 +Function: SQL 9 - Query that involves an outer join operation runs very slowly. However, if you use the FORCE ORDER query hint in the query, the query runs much faster. Additionally, the execution plan of the query contains the following text in the Warnings column: NO JOIN PREDICATE.
+Link: None -**Trace Flag: 4612**
-Function: Disable the ring buffer logging - no new entries will be made into the ring buffer
+ +#### Trace Flag: 4123 +Function: Query that has many outer joins takes a long time to compile in SQL Server 2005
Link: None -**Trace Flag: 4613**
-Function: Generate a minidump file whenever an entry is logged into the ring buffer
+ +#### Trace Flag: 4124 +Function: “FIX: A query performance issue occurs when you run a query against a column of the bigint data type in SQL Server 2005... If the All Density column [of SHOW_STATISTICS] displays incorrect values of 1, you are encountering this problem”
Link: None -**Trace Flag: 4614**
-Function: Enables SQL Server authenticated logins that use Windows domain password policy enforcement to log on to the instance even though the SQL Server service account is locked out or disabled on the Windows domain controller.
-Link: https://support.microsoft.com/en-us/kb/925744 + +#### Trace Flag: 4125 +Function: SQL 9 - Query may take more time to finish if using an inner join to join a derived table that uses DISTINCT keyword
+Link: None -**Trace Flag: 4616**
-Function: Makes server-level metadata visible to application roles. In SQL Server, an application role cannot access metadata outside its own database because application roles are not associated with a server-level principal. This is a change of behavior from earlier versions of SQL Server. Setting this global flag disables the new restrictions, and allows for application roles to access server-level metadata.
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx
-Scope: global + +#### Trace Flag: 4126 +Function: “FIX: The synchronization process is slow, and the CPU usage is high on the computer that is configured as the Distributor in SQL Server 2005” The problem manifested as a replication performance issue, but the following phrase found in the KB article indicates that it is a query processor issue: “the query that performs poorly shows that a join predicate is not pushed down to a Clustered Index Seek operator.”
+Link: https://support.microsoft.com/help/959013/ -**Trace Flag: 4618**
-Function: Limits number of entries per user cache store to 1024. It may incur a small CPU overhead as when removing old cache entries when new entries are inserted. It performs this action to limit the size of the cache store growth. However, the CPU overhead is spread over time.
-Link: https://support.microsoft.com/en-us/kb/933564 + +#### Trace Flag: 4127 +Function: SQL 9 - Compilation time of some queries is very long in an x64-based version. +Basically its more than execution time because more memory allocations are necessary in the compilation process.
+Link: Note -**Trace Flag: 4621**
-Function: SQL 9 – After 4610 & 4618 you can still customize the quota for TokenAndPermUserStore cache store that is based on the current workload
-Link: https://support.microsoft.com/en-us/kb/959823 + +#### Trace Flag: 4128 +Function: “FIX: When you update rows by using a cursor in SQL Server 2005, the update may take a long time to finish”
+Link: https://support.microsoft.com/help/957872/ -**Trace Flag: 5101**
-Function: Forces all I/O requests to go through engine 0. This removes the contention between processors but could create a bottleneck if engine 0 becomes busy with non-I/O tasks.
+ +#### Trace Flag: 4129 +Function: “FIX: The values of the datetime column are not same for the rows that are copied when you copy data to a table by using the GETDATE() function in Microsoft SQL Server 2005”
Link: None -**Trace Flag: 5102**
-Function: Prevents engine 0 from running any non-affinitied tasks.
+ +#### Trace Flag: 4130 +Function: XML performance fix
Link: None -**Trace Flag: 5302**
-Function: Alters default behavior of select…INTO (and other processes) that lock system tables for the duration of the transaction. This trace flag disables such locking during an implicit transaction.
+ +#### Trace Flag: 4131 +Function: “FIX: When you run a query that contains a JOIN operation in SQL Server 2005 or SQL Server 2008, and the ON clause of the JOIN operator contains a LIKE predicate, the query runs slower than in SQL Server 2000”
Link: None -**Trace Flag: 6527**
-Function: Disables generation of a memory dump on the first occurrence of an out-of-memory exception in CLR integration. By default, SQL Server generates a small memory dump on the first occurrence of an out-of-memory exception in the CLR. The behaviour of the trace flag is as follows: If this is used as a startup trace flag, a memory dump is never generated. However, a memory dump may be generated if other trace flags are used. If this trace flag is enabled on a running server, a memory dump will not be automatically generated from that point on. However, if a memory dump has already been generated due to an out-of-memory exception in the CLR, this trace flag will have no effect. -Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx
-Scope: global + +#### Trace Flag: 4133 +Function: “FIX: The size of the SQL Server 2005 error log file or of the SQL Server 2008 error log file grows very quickly when query notifications are created and destroyed in a high ratio” & “FIX: The restore operation takes a long time when you restore a database that has query notification enabled in SQL Server 2005 or in SQL Server 2008”
+Link: https://support.microsoft.com/help/958006/ -**Trace Flag: 7103**
-Function: Disable table lock promotion for text columns
-Link: https://support.microsoft.com/en-us/kb/230044 + +#### Trace Flag: 4134 +Function: Bugfix for error: parallel query returning different results every time + The trace flag disables an optimization in the query optimizer. +The optimization caused the issue described in the KB article when you try to insert into a table by selecting from the table itself. +As turning on the trace flag could result in a perf degradation, you only should use it if you run into the issue described in the KB article.
+Link: https://support.microsoft.com/help/2546901
+Link: http://sql-sasquatch.blogspot.se/2014/04/whaddayaknow-bout-sqlserver-trace-flag.html
+Link: https://social.msdn.microsoft.com/Forums/sqlserver/en-US/9ea718c2-e0e0-40cf-b12b-3269130448b7/trace-flag-4135-sql-server-2008?forum=sqldatabaseengine -**Trace Flag: 7300**
-Function: Outputs extra info about linked server errors
-Link: http://support.microsoft.com/kb/314530 + +#### Trace Flag: 4135 +Function: Bugfix for error inserting to temp table
+Link: https://support.microsoft.com/help/960770
+Link: https://connect.microsoft.com/SQLServer/feedback/details/541352/tempdb-errors-during-statistics-auto-update -**Trace Flag: 7502**
-Function: Disable cursor plan caching for extended stored procedures
-Link: http://basitaalishan.com/2012/02/20/essential-trace-flags-for-recovery-debugging/ + +#### Trace Flag: 4136 +Function: Disables parameter sniffing unless OPTION(RECOMPILE), WITH RECOMPILE or OPTIMIZE FOR value is used. +To accomplish this at the database level, see [ALTER DATABASE SCOPED CONFIGURATION (Transact-SQL)]. +To accomplish this at the query level, add the OPTIMIZE FOR UNKNOWN query hint. +Beginning with SQL Server 2016 SP1, to accomplish this at the query level, add the USE HINT query hint instead of using this trace flag. +**Note: Please ensure that you thoroughly test this option, before rolling it into a production environment.**
+Link: http://blogs.msdn.com/b/axinthefield/archive/2010/11/04/sql-server-trace-flags-for-dynamics-ax.aspx
+Link: [New Features in SQL Server 2016 Service Pack 1]
+Link: [Docs Trace Flags]
+Link: http://kejser.org/trace-flag-4136-2/
+Link: http://www.sqlservergeeks.com/sql-server-trace-flag-4136/
+Link: http://www.sqlservergeeks.com/sql-server-did-you-know-about-trace-flag-4136/
+Scope: global or session or query + + + +#### Trace Flag: 4137 +Function: Causes SQL Server to generate a plan using minimum selectivity when estimating AND predicates for filters to account for correlation, under the query optimizer cardinality estimation model of SQL Server 2012 and earlier versions
+Beginning with SQL Server 2016 SP1, to accomplish this at the query level, add the USE HINT query hint instead of using this trace flag. +**Note: Please ensure that you thoroughly test this option, before rolling it into a production environment.**
+Link: https://support.microsoft.com/help/2658214
+Link: [New Features in SQL Server 2016 Service Pack 1]
+Link: [Docs Trace Flags]
+Scope: global or session or query + + + +#### Trace Flag: 4138 +Function: Causes SQL Server to generate a plan that does not use row goal adjustments with queries that contain TOP, OPTION (FAST N), IN, or EXISTS keywords
+Beginning with SQL Server 2016 SP1, to accomplish this at the query level, add the USE HINT query hint instead of using this trace flag. +**Note: Please ensure that you thoroughly test this option, before rolling it into a production environment.**
+Link: https://support.microsoft.com/help/2667211
+Link: [New Features in SQL Server 2016 Service Pack 1]
+Link: [Docs Trace Flags]
+Link: https://answers.sqlperformance.com/questions/1609/trying-to-figure-out-how-to-resolve-the-data-skew.html
+Link: http://dba.stackexchange.com/questions/55198/huge-slowdown-to-sql-server-query-on-adding-wildcard-or-top
+Scope: global or session or query + + + +#### Trace Flag: 4139 +Function: Enable automatically generated quick statistics (histogram amendment) regardless of key column status. +If trace flag 4139 is set, regardless of the leading statistics column status (ascending, descending, or stationary), the histogram used to estimate cardinality will be adjusted at query compile time
+Beginning with SQL Server 2016 SP1, to accomplish this at the query level, add the USE HINT query hint instead of using this trace flag. +**Note: Please ensure that you thoroughly test this option, before rolling it into a production environment.**
+Link: https://support.microsoft.com/help/2952101
+Link: [Docs Trace Flags]
+Link: [SQL Server - estimates outside of the histogram - half-baked draft]
+Link: [Parallelism in Hekaton (In-Memory OLTP)]
+Link: [Important Trace Flags That Every DBA Should Know]
+Link: https://support.microsoft.com/help/974006
+Scope: global or session or query + + + +#### Trace Flag: 4199 +Function: Enables query optimizer (QO) changes released in SQL Server Cumulative Updates and Service Packs. +QO changes that are made to previous releases of SQL Server are enabled by default under the latest database compatibility level in a given product release, without trace flag 4199 enabled.
+The following table summarizes the behavior when using specific database compatibility levels and trace flag 4199: + +| Database compatibility level | TF 4199 | QO changes from previous database compatibility levels | QO changes for current version post-RTM | +|------------------------------|-------------|--------------------------------------------------------|-----------------------------------------| +| 100 to 120 | Off
On | Disabled
Enabled | Disabled
Enabled | +| 130 | Off
On | Enabled
Enabled | Disabled
Enabled | +| 140 | Off
On | Enabled
Enabled | Disabled
Enabled | + +To enable this at the database level, see [ALTER DATABASE SCOPED CONFIGURATION (Transact-SQL)].
+**Note: Starting with SQL Server 2016 SP1, to accomplish this at the query level, add the USE HINT [query hint](https://docs.microsoft.com/en-us/sql/t-sql/queries/hints-transact-sql-query) instead of using this trace flag.**
+Link: https://support.microsoft.com/help/974006
+Link: [New Features in SQL Server 2016 Service Pack 1]
+Link: [Docs Trace Flags]
+Link: https://support.microsoft.com/help/974006/
+Link: https://sqlworkbooks.com/2017/04/selectively-enabletrace-flag-4199-and-query_optimizer_hotfixes-in-sql-server-2016/
+Link: https://sqlworkbooks.com/2017/04/trace-flag-4199-no-per-session-override-if-you-enable-it-globally/
+Link: http://www.sqlservergeeks.com/sql-server-2016-database-scoped-configuration-and-trace-flag-4199/
+Scope: global or session or query + + + +#### Trace Flag: 4606 +Function: Over comes SA password by startup. Disables password policy check during server startup.
+Link: https://blogs.msdn.microsoft.com/sqlserverfaq/2011/05/11/inf-hey-my-sql-server-service-is-not-starting-what-do-i-do
+Link: https://blogs.msdn.microsoft.com/sqlserverfaq/2008/07/31/upgrade-of-sql-server-2000-instance-to-sql-server-2005-fails-with-error-similar-to-enforce-password-policy -**Trace Flag: 7505**
-Function: Enables version 6.x handling of return codes when calling dbcursorfetchex and the resulting cursor position follows the end of the cursor result set
-Link: None + +#### Trace Flag: 4610 +Function: When you use trace flag 4618 together with trace flag 4610, the number of entries in the cache store is limited to 8,192. When the limit is reached, SQL 2005 removes some entries from the TokenAndPermUserStore cache store.
+Link: https://support.microsoft.com/help/959823
+Link: [Docs Trace Flags]
+Link: https://blogs.msdn.microsoft.com/psssql/2008/06/16/query-performance-issues-associated-with-a-large-sized-security-cache/
+Scope: global only -**Trace Flag: 7525**
-Function: SQL 8 - Reverts to ver 7 behavior of closing nonstatic cursors regardless of the SET CURSOR_CLOSE_ON_COMMIT state
-Link: None + +#### Trace Flag: 4612 +Function: Disable the ring buffer logging - no new entries will be made into the ring buffer
+Link: http://blogs.msdn.com/b/lcris/archive/2007/02/19/sql-server-2005-some-new-security-features-in-sp2.aspx -**Trace Flag: 7601**
-Function: Helps in gathering more information in full text search by turning on full text tracing which gathers information on indexing process using the error log. Also 7603, 7604, 7605 trace flags.
-Link: None + +#### Trace Flag: 4613 +Function: Generate a minidump file whenever an entry is logged into the ring buffer
+Link: http://blogs.msdn.com/b/lcris/archive/2007/02/19/sql-server-2005-some-new-security-features-in-sp2.aspx -**Trace Flag: 7608**
-Function: Performance fix for slow full text population with a composite clustered index
-Link: https://support.microsoft.com/en-us/kb/938672 + +#### Trace Flag: 4614 +Function: Enables SQL Server authenticated logins that use Windows domain password policy enforcement to log on to the instance even though the SQL Server service account is locked out or disabled on the Windows domain controller.
+Link: https://support.microsoft.com/help/925744 -**Trace Flag: 7613**
-Function: SQL 9 - Search results are missing when performing a full-text search operation on Win SharePoint Services 2.0 site after upgrading
-Link: https://support.microsoft.com/en-us/kb/927643 + +#### Trace Flag: 4616 +Function: Makes server-level metadata visible to application roles. +In SQL Server, an application role cannot access metadata outside its own database because application roles are not associated with a server-level principal. +This is a change of behavior from earlier versions of SQL Server. +Setting this global flag disables the new restrictions, and allows for application roles to access server-level metadata.
+Link: [Docs Trace Flags]
+Link: https://support.microsoft.com/help/906549/
+Scope: global only -**Trace Flag: 7614**
-Function: SQL 9 - Full-text index population for the indexed view is very slow
-Link: https://support.microsoft.com/en-us/kb/928537 + +#### Trace Flag: 4618 +Function: Limits number of entries per user cache store to 1024. +It may incur a small CPU overhead as when removing old cache entries when new entries are inserted. +It performs this action to limit the size of the cache store growth. However, the CPU overhead is spread over time. +When used together with trace flag 4610 increases the number of entries in the TokenAndPermUserStore cache store to 8192
+Link: [Docs Trace Flags]
+Link: https://support.microsoft.com/help/933564
+Link: https://support.microsoft.com/help/959823/
+Scope: global only -**Trace Flag: 7646**
-Function: SQL 10 - Avoids blocking when using full text indexing. An issue we experienced that full text can be slow when there is a high number of updates to the index and is caused by blocking on the docidfilter internal table.
-Link: None + +#### Trace Flag: 4620 +Function: According to the Connect item, causes permission checking to be done on a global cache instead of the per-user caches that were introduced in SQL 2008. The thread +includes some interesting information on the cache stores, especially as they relate to TokenPermAndUserStore.
+Link: https://connect.microsoft.com/SQLServer/feedback/details/467661/sql-server-2008-has-incorrect-cache-names-in-sys-dm-os-memory-cache-counters -**Trace Flag: 7806**
-Function: SQL 9 - Enables a dedicated administrator connection on SQL Express, DAC resources are not reserved by default
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx
-Scope: global + +#### Trace Flag: 4621 +Function: SQL 9 – After 4610 & 4618 you can still customize the quota for TokenAndPermUserStore cache store that is based on the current workload
+Link: https://support.microsoft.com/help/959823 -**Trace Flag: 7826**
-Function: Disable Connectivity ring buffer
-Link: http://blogs.msdn.com/b/sql_protocols/archive/2008/05/20/connectivity-troubleshooting-in-sql-server-2008-with-the-connectivity-ring-buffer.aspx + +#### Trace Flag: 5004 +Function: Pauses TDE encryption scan and causes encryption scan worker to exit without doing any work. +The database will continue to be in encrypting state (encryption in progress). +To resume re-encryption scan, disable trace flag 5004 and run ALTER DATABASE SET ENCRYPTION ON.
+Link: [Docs Trace Flags]
+Scope: global only -**Trace Flag: 7827**
-Function: Record connection closure info in ring buffer
-Link: http://blogs.msdn.com/b/sql_protocols/archive/2008/05/20/connectivity-troubleshooting-in-sql-server-2008-with-the-connectivity-ring-buffer.aspx
-Link: https://connect.microsoft.com/SQLServer/feedback/details/518158/-packet-error-a-fatal-error-occurred-while-reading-the-input-stream-from-the-network + +#### Trace Flag: 5101 +Function: Forces all I/O requests to go through engine 0. +This removes the contention between processors but could create a bottleneck if engine 0 becomes busy with non-I/O tasks.
+Link: http://dba.fyicenter.com/Interview-Questions/SYBASE/What_is_Trace_Flag_Definitions_in_Sybase.html#1.3.4#1.3.4 -**Trace Flag: 8002**
-Function: Changes CPU Affinity behaviour
-Link: http://support.microsoft.com/kb/818769 + +#### Trace Flag: 5102 +Function: Prevents engine 0 from running any non-affinitied tasks.
+Link: http://dba.fyicenter.com/Interview-Questions/SYBASE/What_is_Trace_Flag_Definitions_in_Sybase.html#1.3.4#1.3.4 + + + +#### Trace Flag: 5302 +Function: Alters default behavior of select…INTO (and other processes) that lock system tables for the duration of the transaction. +This trace flag disables such locking during an implicit transaction.
+Link: https://support.microsoft.com/help/153096/ + + + +#### Trace Flag: 6498 +Function: Enables more than one large query compilation to gain access to the big gateway when there is sufficient memory available. +It is based on the 80 percentage of SQL Server Target Memory, and it allows for one large query compilation per 25 gigabytes (GB) of memory.
+**Note: Beginning with SQL Server 2014 SP2 and SQL Server 2016 this behavior is controlled by the engine and trace flag 6498 has no effect.**
+Link: https://support.microsoft.com/help/3024815
+Link: [Docs Trace Flags]
+Link: http://blogs.msdn.com/b/sql_server_team/archive/2015/10/09/query-compile-big-gateway-policy-changes-in-sql-server.aspx
+Scope: global only + + + +#### Trace Flag: 6527 +Function: Disables generation of a memory dump on the first occurrence of an out-of-memory exception in CLR integration. +By default, SQL Server generates a small memory dump on the first occurrence of an out-of-memory exception in the CLR. +The behaviour of the trace flag is as follows: If this is used as a startup trace flag, a memory dump is never generated. +However, a memory dump may be generated if other trace flags are used. +If this trace flag is enabled on a running server, a memory dump will not be automatically generated from that point on. +However, if a memory dump has already been generated due to an out-of-memory exception in the CLR, this trace flag will have no effect.
+Link: [Docs Trace Flags]
+Scope: global only + + + +#### Trace Flag: 6530 +Function: Enables a hotfix for “ +FIX: Slow performance in SQL Server 2012 or SQL Server 2014 when you build an index on a spatial data type of a large table”
+Link: https://blogs.msdn.microsoft.com/psssql/2013/11/19/spatial-indexing-from-4-days-to-4-hours
+Link: https://support.microsoft.com/help/2896720/ + + +#### Trace Flag: 6531 +Function: Enables adjustment in the SQLOS scheduling layer to handle queries that issue many short-duration calls to spatial data (which is implemented via CLR functions): “ +This fix introduces the trace flag 6531 to indicate to the SQLOS hosting layer that the spatial data type should avoid preemptive protections. This can reduce the CPU consumption +and improve the overall performance for spatial activities. Only use this trace flag if the individual, spatial method invocations (per row and column) take less than ~4ms. +Longer invocations without preemptive protection could lead to scheduler concurrency issues and SQLCLR punishment messages logged to the error log.”
+Link: https://support.microsoft.com/help/3005300/ + + + +#### Trace Flag: 6532 +Function: Enables performance improvement of query operations with spatial data types in SQL Server 2012 and SQL Server 2014. +The performance gain will vary, depending on the configuration, the types of queries, and the objects.
+Link: [KB3107399]
+Link: [Docs Trace Flags]
+Scope: global or session -**Trace Flag: 8004**
-Function: SQL server to create a mini-dump once you enable 2551 and a out of memory condition is hit
-Link: None + +#### Trace Flag: 6533 +Function: Enables performance improvement of query operations with spatial data types in SQL Server 2012 and SQL Server 2014. +The performance gain will vary, depending on the configuration, the types of queries, and the objects.
+Link: [KB3107399]
+Link: [Docs Trace Flags]
+Scope: global or session + + +#### Trace Flag: 6534 +Function: Enables performance improvement of query operations with spatial data types in SQL Server 2012, SQL Server 2014 and SQL Server 2016. +The performance gain will vary, depending on the configuration, the types of queries, and the objects.
+Link: https://support.microsoft.com/help/3054180
+Link: [KB3107399]
+Link: https://blogs.msdn.microsoft.com/bobsql/2016/06/03/sql-2016-it-just-runs-faster-native-spatial-implementations/
+Link: [Docs Trace Flags]
+Scope: global or session -**Trace Flag: 8010**
-Function: Fixes problem that SQL Server services can not be stopped
-Link: http://support.microsoft.com/kb/2633271/en-us + +#### Trace Flag: 6545 +Function: Enables "CLR strict security" behavior (introduced in SQL Server 2017) in SQL Server 2012, SQL Server 2014, and SQL Server 2016. +When enabled, this option will require that _all_ assemblies, regardless of `PERMISSION_SET`, be signed, have an associated signature-based Login, and that the associated Login be granted the `UNSAFE ASSEMBLY` permission.
+Please note: +1. This TF can only be specified as a startup parameter!
+1. This TF is only available in instances that have been updated / patched with a Service Pack (SP), Cumulative Update (CU), or GDR that was released on or after 2017-08-08.
-**Trace Flag: 8011**
-Function: Disable the ring buffer for Resource Monitor
-Link: http://support.microsoft.com/kb/920093
+Link: [SQLCLR vs. SQL Server 2012 & 2014 & 2016, Part 7: “CLR strict security” – The Problem Continues … in the Past (Wait, What?!?)][TF6545-b]
+Link: [Update adds the "CLR strict security" feature to SQL Server 2016][TF6545-a] ( KB4018930 )
Scope: global -**Trace Flag: 8012**
-Function: Disable the ring buffer for schedulers
-Link: http://support.microsoft.com/kb/920093 - + +#### Trace Flag: 7103 +**Undocumented trace flag**
+Function: Disable table lock promotion for text columns
+Link: None + -**Trace Flag: 8015**
-Function: Ignore NUMA functionality
-Link: https://support.microsoft.com/en-us/kb/948450
-Link: http://sql-sasquatch.blogspot.se/2013/04/startup-trace-flags-i-love.html + +#### Trace Flag: 7300 +Function: Outputs extra info about linked server errors
+Link: https://support.microsoft.com/help/314530
+Link: https://support.microsoft.com/help/280106/
+Link: https://support.microsoft.com/help/280102/
+Link: https://connect.microsoft.com/SQLServer/feedback/details/306380/trace-flag-issue-7300-3604 -*Thanks to: @sql\_handle (https://twitter.com/sql_handle)* + +#### Trace Flag: 7301 +Function: Fixes a problem in SQL 6.5 where SELECT INTO queries with text/image types were not bulk-logged.
+Link: None + + + +#### Trace Flag: 7311 +Function: Offers a new alternative to handling the tricky problem of converting Oracle NUMBER types (across OLEDB linked server queries) with unknown precision/scale to a valid SQL Server data type, by treating all such types as NUMERIC(38,10).
+Link: https://support.microsoft.com/help/3051993/ + + + +#### Trace Flag: 7314 +Function: Forces NUMBER values with unknown precision/scale to be treated as double values with OLE DB provider
+Link: [Docs Trace Flags]
+Link: https://support.microsoft.com/help/3051993
+Scope: global or session + + + +#### Trace Flag: 7352 +Function: Show the optimizer output and the post-optimization rewrite in action (After Post Optimization Rewrite)
+Link: [Internals of the Seven SQL Server Sorts – Part 1]
+Link: http://sqlblog.com/blogs/paul_white/archive/2013/08/31/sql-server-internals-nested-loops-prefetching.aspx
+Link: http://www.queryprocessor.com/batch-sort-and-nested-loops
+Link: [Query Optimizer Deep Dive - Part 4]
+Link: [Few Outer Rows Optimization]
+Related to [8607](#8607) trace flag
+Scope: session only -**Trace Flag: 8017**
-Function: Upgrade version conflict
-Link: http://social.msdn.microsoft.com/Forums/eu/sqlexpress/thread/dd6fdc16-9d8d-4186-9549-85ba4c322d10
-Link: http://connect.microsoft.com/SQLServer/feedback/details/407692/indicateur-de-trace-8017-reported-while-upgrading-from-ssee2005-to-ssee2008 + +#### Trace Flag: 7356 +**Undocumented trace flag**
+Function: Added a probe residual to an adaptive join. Full effect unknown.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 7357 +Function: Outputs info re: hashing operators, including role reversal, recursion levels, whether the Unique Hash optimization could be used, info about the hash-related bitmap, etc. Dima’s article is a must-read. For parallel query plans, 7357 does NOT send output to the console window. However, output to the SQL Server error log can be enabled by enabling 3605.
+Link: http://www.queryprocessor.com/hash-join-execution-internals
+Link: [Query Optimizer Deep Dive - Part 4] + + + +#### Trace Flag: 7359 +Function: Disables the bitmap associated with hash matching. This bitmap is used for “bit-vector filtering” and can reduce the amount of data written to TempDB during hash spills.
+Link: www.queryprocessor.com/hash-join-execution-internals + + + +#### Trace Flag: 7398 +**Undocumented trace flag**
+Function: Changed a nested loop join to have ordered prefetch.
+Link: [New Undocumented Trace Flags]
+Scope: ? -**Trace Flag: 8018**
-Function: Disable the exception ring buffer
-Link: http://support.microsoft.com/kb/920093 + +#### Trace Flag: 7470 +Function: Fixes a problem where under certain (unknown) conditions, a sort spill occurs for large sorts
+Link: https://support.microsoft.com/help/3088480/ -**Trace Flag: 8019**
-Function: Disable stack collection for the exception ring buffer
-Link: http://support.microsoft.com/kb/920093 + +#### Trace Flag: 7412 +Function: Enables the lightweight query execution statistics profiling infrastructure. +unless your server is already CPU bound, like you’re running all the time with 95% CPU, unless you are at that point, turn on this trace flag at any server you have. +This would be my advice here because this enables that lightweight profiling infrastructure there and then you’ll see in a few minutes what it unleashes here. +So one thing that happens when I enable the lightweight profiling is that the sys.dm_exec_query_profiles DMV, which is something that actually populates the live query stats ability or feature of SSMS, now also is also populated with this lightweight profiling, which means that for all essence, we are now able to run a live query stats on all fashions at any given point in time, and this is extremely useful for let’s say a production DBA that someone calls and says, “Hey, you have a problem. To tap into running system and look at what it’s doing.”
+Link: [Docs Trace Flags]
+Link: https://support.microsoft.com/help/3170113
+Link: https://www.brentozar.com/archive/2017/10/get-live-query-plans-sp_blitzwho/
+Link: https://groupby.org/conference-session-abstracts/enhancements-that-will-make-your-sql-database-engine-roar-2016-sp1-edition/
+Link: https://www.scarydba.com/2018/06/11/plan-metrics-without-the-plan-trace-flag-7412/
+Scope: global only -**Trace Flag: 8020**
-Function: Disable working set monitoring
-Link: http://support.microsoft.com/kb/920093 + +#### Trace Flag: 7470 +Function: Fix for sort operator spills to tempdb in SQL Server 2012 or SQL Server 2014 when estimated number of rows and row size are correct
+Link: https://support.microsoft.com/help/3088480 -**Trace Flag: 8026**
-Function: SQL Server will clear a dump trigger after generating the dump -once
-Link: http://support.microsoft.com/kb/917825/en-us + +#### Trace Flag: 7471 +Function: Running multiple UPDATE STATISTICS for different statistics on a single table concurrently
+Link: https://support.microsoft.com/help/3156157
+Link: http://sqlperformance.com/2016/05/sql-performance/parallel-rebuilds + + + +#### Trace Flag: 7497 +Function: Behavior and intended purpose unknown, but in this post Paul White uses it in concert with 7498 to disable “optimized bitmaps”.
+Link: https://sqlperformance.com/2015/11/sql-plan/hash-joins-on-nullable-columns + + + +#### Trace Flag: 7498 +Function: Behavior and intended purpose unknown, but in this post Paul White uses it in concert with 7497 to disable “optimized bitmaps”.
+Link: https://sqlperformance.com/2015/11/sql-plan/hash-joins-on-nullable-columns + + + +#### Trace Flag: 7501 +Function: Dynamic cursors are used by default on forward-only cursors. +Dynamic cursors are faster than in earlier versions and no longer require unique indexes. +This flag disables the dynamic cursor enhancements and reverts to version 6.0 behavior.
+Link: None -**Trace Flag: 8030**
+ + +#### Trace Flag: 7502 +Function: Disable cursor plan caching for extended stored procedures
+Link: http://basitaalishan.com/2012/02/20/essential-trace-flags-for-recovery-debugging/ + + + +#### Trace Flag: 7505 +Function: Enables version 6.x handling of return codes when calling dbcursorfetchex and the resulting cursor position follows the end of the cursor result set
+Link: None + + + +#### Trace Flag: 7525 +Function: SQL 8 - Reverts to ver 7 behavior of closing nonstatic cursors regardless of the SET CURSOR_CLOSE_ON_COMMIT state
+Link: None + + +#### Trace Flag: 7601, 7603, 7604, 7605 +Function: Helps in gathering more information in full text search by turning on full text tracing which gathers information on indexing process using the error log. Also 7603, 7604, 7605 trace flags.
+Link: https://connect.microsoft.com/SQLServer/feedback/details/526343/looking-for-documentation-on-trace-flags-7601-7603-7604-and-7605 + + + +#### Trace Flag: 7608 +Function: Performance fix for slow full text population with a composite clustered index
+Link: None + + + +#### Trace Flag: 7613 +Function: SQL 9 - Search results are missing when performing a full-text search operation on Win SharePoint Services 2.0 site after upgrading
+Link: None + + + +#### Trace Flag: 7614 +Function: SQL 9 - Full-text index population for the indexed view is very slow
+Link: None + + + +#### Trace Flag: 7646 +Function: SQL 10 - Avoids blocking when using full text indexing. +An issue we experienced that full text can be slow when there is a high number of updates to the index and is caused by blocking on the docidfilter internal table.
+Link: None + + + +#### Trace Flag: 7745 +Function: Forces Query Store to not flush data to disk on database shutdown.
+Note: Using this trace may cause Query Store data not previously flushed to disk to be lost in case of shutdown. +For a SQL Server shutdown, the command SHUTDOWN WITH NOWAIT can be used instead of this trace flag to force an immediate shutdown.
+Link: [Docs Trace Flags]
+Link: [Query Store Trace Flags]
+Scope: global only + + + +#### Trace Flag: 7752 +Function: Enables asynchronous load of Query Store.
+Note: Use this trace flag if SQL Server is experiencing high number of QDS_LOADDB waits related to Query Store synchronous load (default behavior).
+Link: [Docs Trace Flags]
+Link: [Query Store Trace Flags]
+Scope: global only + + + +#### Trace Flag: 7806 +Function: Enables a dedicated administrator connection ([DAC]) on SQL Server Express. +By default, no [DAC] resources are reserved on SQL Server Express.
+Link: [Docs Trace Flags]
+Link: https://msdn.microsoft.com/en-us/library/ms189595.aspx
+Link: https://sqlperformance.com/2012/08/sql-memory/test-your-dac-connection
+Link: http://www.sqlservergeeks.com/sql-server-trace-flag-7806/
+Scope: global only + + + +#### Trace Flag: 7826 +Function: Disable Connectivity ring buffer
+Link: http://blogs.msdn.com/b/sql_protocols/archive/2008/05/20/connectivity-troubleshooting-in-sql-server-2008-with-the-connectivity-ring-buffer.aspx + + + +#### Trace Flag: 7827 +Function: Record connection closure info in ring buffer
+Link: http://blogs.msdn.com/b/sql_protocols/archive/2008/05/20/connectivity-troubleshooting-in-sql-server-2008-with-the-connectivity-ring-buffer.aspx
+Link: https://connect.microsoft.com/SQLServer/feedback/details/518158/-packet-error-a-fatal-error-occurred-while-reading-the-input-stream-from-the-network + + + +#### Trace Flag: 7833 +Function: SQL 2012 SP2 CU8 introduced a fix for a “silent error” condition in the sqlcmd tool. The CU also included this flag to allow customers to revert to pre-CU fix behavior.
+Link: https://support.microsoft.com/help/3082877/ + + + +#### Trace Flag: 8001 +Function: Khen2005, p2: “For SQL Server 2005, the SQL Server product team opted not to include some wait types that fall under one of the following three categories: +- Wait types that are never used in SQL Server 2005; note that some wait types not excluded are also never used. +- Wait types that can occur only at times when they do not affect user activity, such as during initial server startup and shutdown, and are not visible to users. +- Wait types that are innocuous but have caused concern among users because of their high occurrence or duration +The complete list of wait types is available by enabling trace flag 8001. The only effect of this trace flag is to force sys.dm_os_wait_stats to display all wait types.”
+Link: None + + + +#### Trace Flag: 8002 +Function: Changes CPU Affinity behaviour
+Link: https://blogs.msdn.microsoft.com/psssql/2011/11/11/sql-server-clarifying-the-numa-configuration-information + + + +#### Trace Flag: 8004 +Function: SQL server to create a mini-dump once you enable 2551 and a out of memory condition is hit
+Link: https://connect.microsoft.com/SQLServer/feedback/details/342691/not-enough-memory-was-available-for-trace-error-when-attempting-to-profile-sql-2008 + + + +#### Trace Flag: 8008 +**Undocumented trace flag**
+Function: Force the scheduler hint to be ignored. +Always assign to the scheduler with the least load (pool based on SQL 2012 EE SKU or Load Factor for previous versions and SKUs.)
+Link: [How It Works: SQL Server 2012 Database Engine Task Scheduling]
+Link: https://blogs.msdn.microsoft.com/psssql/2013/08/13/how-it-works-sql-server-2012-database-engine-task-scheduling
+Link: http://www.stillhq.com/sqldownunder/archives/msg05089.html + + + +#### Trace Flag: 8009 +**Undocumented trace flag**
+Function: Enables the “idle state behavior” (see IO Basics, Chapter 2 document) that a SQL instance can enter under certain conditions.
+Link: https://technet.microsoft.com/en-us/library/cc917726.aspx + + + +#### Trace Flag: 8010 +Function: Disables the “idle state” behavior that a SQL instance can enter (see TF 8009). Fixes problem that SQL Server services can not be stopped
+Link: https://support.microsoft.com/help/2633271 +Link: https://technet.microsoft.com/en-us/library/cc917726.aspx + + + +#### Trace Flag: 8011 +Function: Trace flag 8011 disables the collection of additional diagnostic information for Resource Monitor. +You can use the information in this ring buffer to diagnose out-of-memory conditions. +Trace flag 8011 always applies across the server and has global scope. You can turn on trace flag 8011 at startup or in a user session.
+Link: [KB920093]
+Link: [Docs Trace Flags]
+Link: http://www.sqlservergeeks.com/sql-server-ring-buffer-trace-flag-8011/
+Scope: global only + + + +#### Trace Flag: 8012 +Function: Disable the ring buffer for schedulers. +SQL Server records an event in the schedule ring buffer every time that one of the following events occurs: +a scheduler switches context to another worker, a worker is suspended, a worker is resumed, a worker enters the preemptive mode or the non-preemptive mode. +You can use the diagnostic information in this ring buffer to analyze scheduling problems. +For example, you can use the information in this ring buffer to troubleshoot problems when SQL Server stops responding. +Trace flag 8012 disables recording of events for schedulers. You can turn on trace flag 8012 only at startup. +The exception ring buffer records the last 256 exceptions that are raised on a node. +Each record contains some information about the error and contains a stack trace. A record is added to the ring buffer when an exception is raised.
+Link: [KB920093]
+Link: [Docs Trace Flags]
+Link: http://www.sqlservergeeks.com/sql-server-ring-buffer-trace-flag-8012/
+Scope: global only + + + +#### Trace Flag: 8015 +Function: Disable auto-detection and NUMA setup
+Link: [Docs Trace Flags]
+Link: http://sql-sasquatch.blogspot.se/2013/04/startup-trace-flags-i-love.html
+Link: [Upgrading an expired SQL Server 2016 Evaluation Edition]
+Scope: global only + + + +#### Trace Flag: 8016 +**Undocumented trace flag**
+Function: Force load balancing to be ignored. Always assign to the preferred scheduler.
+Link: [How It Works: SQL Server 2012 Database Engine Task Scheduling] + + + +#### Trace Flag: 8017 +Function: Upgrade version conflict
+Link: http://social.msdn.microsoft.com/Forums/eu/sqlexpress/thread/dd6fdc16-9d8d-4186-9549-85ba4c322d10
+Link: http://connect.microsoft.com/SQLServer/feedback/details/407692/indicateur-de-trace-8017-reported-while-upgrading-from-ssee2005-to-ssee2008
+Link: http://dba.stackexchange.com/questions/48580/trace-flag-and-which-need-to-be-turned-off-and-why + + + +#### Trace Flag: 8018 +Function: Disables the creation of the ring buffer, and no exception information is recorded. +Disabling the exception ring buffer makes it more difficult to diagnose problems that are related to internal server errors.
+Link: [KB920093]
+Link: [Docs Trace Flags]
+Link: http://www.sqlservergeeks.com/sql-server-ring-buffer-trace-flag-8018/
+Link: http://www.sqlservergeeks.com/sql-server-ring-buffer-trace-flag-8019/
+Scope: global only + + + +#### Trace Flag: 8019 +Function: Disable stack collection for the exception ring buffer +Disables stack collection during the record creation. +Trace flag 8019 has no effect if trace flag [8018](#8018) is turned on.
+Link: [KB920093]
+Link: [Docs Trace Flags]
+Link: http://www.sqlservergeeks.com/sql-server-ring-buffer-trace-flag-8019/
+Scope: global only + + + +#### Trace Flag: 8020 +Function: Disable working set monitoring. +SQL Server uses the size of the working set when SQL Server interprets the global memory state signals from the operating system. +Trace flag 8020 removes the size of the working set from consideration when SQL Server interprets the global memory state signals. +If you use this trace flag incorrectly, heavy paging occurs, and the performance is poor. +Therefore, contact Microsoft Support before you turn on trace flag 8020.
+Link: [KB920093]
+Link: [Docs Trace Flags]
+Scope: global only + + + +#### Trace Flag: 8021 +Function: On some lower end hardware we used to get reported that each CPU has its own NUMA node. +This was usually incorrect and when we detected only a single CPU per NODE we would assume NO NUMA. +Trace flag 8021 disables this override.
+Link: https://blogs.msdn.microsoft.com/psssql/2011/11/11/sql-server-clarifying-the-numa-configuration-information/ + + + +#### Trace Flag: 8022 +Function: This flag gives more information about the conditions when a non-yielding scheduler/situation was encountered. +The whitepaper linked to on the right gives example output for this flag
+Link: None + + + +#### Trace Flag: 8024 +Function: When this TF is on, it affects the mini-dump generation logic for the 1788* errors: +"To capture a mini-dump, one of the following checks must also be met. +1. The non-yielding workers CPU utilization must be > 40 percent. +2. The SQL Server process is not starved for overall CPU resource utilization. +Additional check #1 is targeted at runaway CPU users. Additional check #2 is targeted +at workers with lower utilizations that are probably stuck in an API call or similar activity."
+Link: [How To Diagnose and Correct Errors 17883, 17884, 17887, and 17888] + + + +#### Trace Flag: 8025 +Function: SQL on NUMA normally does most of its allocation on Node 1, because usually Windows and other programs will allocate from Node 0. However, if +you want SQL to do its resource allocation on the default node (node 0), turn on this flag.
+Link: https://blogs.msdn.microsoft.com/psssql/2011/11/11/sql-server-clarifying-the-numa-configuration-information + + + +#### Trace Flag: 8026 +Function: SQL Server will clear a dump trigger after generating the dump once
+Link: [KB917825]
+Link: [Controlling SQL Server memory dumps] + + + +#### Trace Flag: 8030 Function: Fix for performance bug
-Link: http://support.microsoft.com/kb/917035
-Link: http://www.sqlservice.se/sv/start/blogg/sql-server-2005-slowing-down-after-a-while.aspx +Link: https://support.microsoft.com/help/917035
-**Trace Flag: 8032**
+ +#### Trace Flag: 8032 Function: Alters cache limit settings
-Warning: Trace flag 8032 can cause poor performance if large caches make less memory available for other memory consumers, such as the buffer pool.
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx +**Warning: Trace flag 8032 can cause poor performance if large caches make less memory available for other memory consumers, such as the buffer pool.**
+Link: [Docs Trace Flags]
+Scope: global only -**Trace Flag: 8033**
-Function: Alters cache limit settings
-Warning: SQL 9 - Disable the reporting of CPU Drift errors in the SQL Server error log like time stamp counter of CPU on scheduler id 1 is not synchronized with other CPUs.
-Link: None + +#### Trace Flag: 8033 +Function: Suppresses messages of the form “The time stamp counter of CPU on scheduler id 1 is not synchronized with other CPUs” from being placed in the SQL Error log when CPU drift is noticed
+**Warning: SQL 9 - Disable the reporting of CPU Drift errors in the SQL Server error log like time stamp counter of CPU on scheduler id 1 is not synchronized with other CPUs.**
+Link: https://support.microsoft.com/help/931279/
+Link: https://blogs.msdn.microsoft.com/psssql/2007/08/19/sql-server-2005-rdtsc-truths-and-myths-discussed -**Trace Flag: 8038**
+ +#### Trace Flag: 8038 Function: Will drastically reduce the number of context switches when running SQL 2005 or 2008
-Link: https://support.microsoft.com/en-us/kb/972767
+Link: [KB972767]
Link: http://forum.proxmox.com/threads/15844-Win7-x64-guest-with-SQLServer-2012-High-CPU-usage
-Link: http://social.technet.microsoft.com/wiki/contents/articles/13105.trace-flags-in-sql-server.aspx +Link: [TECHNET List Of SQL Server Trace Flags] -**Trace Flag: 8040**
+ +#### Trace Flag: 8040 Function: Disables Resource Governor
Link: http://www.sqlservergeeks.com/blogs/AmitBansal/sql-server-bi/64/sql-server-disabling-resource-governor-permanently-somewhat -**Trace Flag: 8048**
-Function: NUMA CPU based partitioning
+ +#### Trace Flag: 8048 +**Note: Beginning with SQL Server 2014 SP2 and SQL Server 2016 this behavior is controlled by the engine and trace flag 8048 has no effect.**
+Function: Converts NUMA partitioned memory objects into CPU partitioned
Link: http://sql-sasquatch.blogspot.se/2013/04/startup-trace-flags-i-love.html
+Link: https://support.microsoft.com/help/2809338
Link: http://blogs.msdn.com/b/psssql/archive/2012/12/20/how-it-works-cmemthread-and-debugging-them.aspx
-Link: http://blogs.msdn.com/b/psssql/archive/2011/09/01/sql-server-2008-2008-r2-on-newer-machines-with-more-than-8-cpus-presented-per-numa-node-may-need-trace-flag-8048.aspx +Link: [Docs Trace Flags]
+Link: http://blogs.msdn.com/b/psssql/archive/2011/09/01/sql-server-2008-2008-r2-on-newer-machines-with-more-than-8-cpus-presented-per-numa-node-may-need-trace-flag-8048.aspx
+Link: [Hidden Performance & Manageability Improvements in SQL Server 2012 / 2014]
+Related to: [8015](#8015), [9024](#9024)
+Scope: global only -*Thanks to: @sql\_handle (https://twitter.com/sql_handle)* -Related to: 8015, 9024 - -**Trace Flag: 8049**
+ +#### Trace Flag: 8049 Function: SQL 9+ Startup only – Allows use of 1ms times even when patched. Check 8038 for details.
-Link: https://support.microsoft.com/en-us/kb/972767 - - -**Trace Flag: 8202**
-Function: Used to replicate UPDATE as DELETE/INSERT pair at the publisher. i.e. UPDATE commands at the publisher can be run as an "on-page DELETE/INSERT" or a "full DELETE/INSERT". If the UPDATE command is run as an "on-page DELETE/INSERT," the Logreader send UDPATE command to the subscriber, If the UPDATE command is run as a "full DELETE/INSERT," the Logreader send UPDATE as DELETE/INSERT Pair. If you turn on trace flag 8202, then UPDATE commands at the publisher will be always send to the subscriber as DELETE/INSERT pair.
+Link: [KB972767]
+Link: https://blogs.msdn.microsoft.com/psssql/2010/08/18/how-it-works-timer-outputs-in-sql-server-2008-r2-invariant-tsc + + + +#### Trace Flag: 8050 +Function: Causes "optional" wait types (see the CSS article) to be excluded when querying sys.dm_os_wait_stats
+Link: https://blogs.msdn.microsoft.com/psssql/2009/11/02/the-sql-server-wait-type-repository/ + + + +#### Trace Flag: 8075 +Function: Enables a fix (after applying the appropriate CU) for x64 VAS exhaustion.
+Link: https://support.microsoft.com/help/3074434/ + + + +#### Trace Flag: 8079 +Function: Allows SQL Server 2014 SP2 to interrogate the hardware layout and automatically configure Soft-NUMA on systems reporting 8 or more CPUs per NUMA node. +The automatic Soft-NUMA behavior is Hyperthread (HT/logical processor) aware. +The partitioning and creation of additional nodes scales background processing by increasing the number of listeners, scaling and network and encryption capabilities. +When Trace Flag 8079 is enabled during startup, SQL Server 2012 SP4 will interrogate the hardware layout and automatically configure Soft NUMA on systems reporting 8 or more CPUs per NUMA node. +It is recommended to first test the performance of workload with Auto-Soft NUMA before it is turned ON in production. +**Note: This trace flag applies to SQL Server 2014 SP2 and SQL Server 2012 SP4. Beginning with SQL Server 2016 this behavior is controlled by the engine and trace flag 8048 has no effect.**
+Link: [KB972767]
+Link: [Docs Trace Flags]
+Link: https://blogs.msdn.microsoft.com/sqlreleaseservices/sql-server-2012-service-pack-4-sp4-released/
+Link: [Hidden Performance & Manageability Improvements in SQL Server 2012 / 2014]
+Scope: global only + + + +#### Trace Flag: 8202 +Function: Used to replicate UPDATE as DELETE/INSERT pair at the publisher. i.e. +UPDATE commands at the publisher can be run as an "on-page DELETE/INSERT" or a "full DELETE/INSERT". +If the UPDATE command is run as an "on-page DELETE/INSERT," the Logreader send UDPATE command to the subscriber, +If the UPDATE command is run as a "full DELETE/INSERT," the Logreader send UPDATE as DELETE/INSERT Pair. +If you turn on trace flag 8202, then UPDATE commands at the publisher will be always send to the subscriber as DELETE/INSERT pair.
Link: None -**Trace Flag: 8203**
+ +#### Trace Flag: 8203 Function: Display statement and transaction locks on a deadlock error
Link: None -**Trace Flag: 8206**
+ +#### Trace Flag: 8206 Function: SQL 8 - Supports stored procedure execution with a user specified owner name for SQL Server subscribers or without owner qualification for heterogeneous subscribers
Link: None -**Trace Flag: 8207**
-Function: Alters Transactional Replication behaviour of UPDATE statement
-Link: https://support.microsoft.com/en-us/kb/302341
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx + +#### Trace Flag: 8207 +Function: Enables singleton updates for Transactional Replication. Updates to subscribers can be replicated as a DELETE and INSERT pair. +This might not meet business rules, such as firing an UPDATE trigger. With trace flag 8207 an update to a unique column that affects only one row (a singleton update) is replicated as an UPDATE and not as a DELETE or INSERT pair. +If the update affects a column on which has a unique constraint or if the update affects multiple rows, the update is still replicated as a DELETE or INSERT pair.
+Link: https://blogs.msdn.microsoft.com/psssql/2009/11/02/the-sql-server-wait-type-repository/
+Link: [Docs Trace Flags]
+Scope: global only -**Trace Flag: 8209**
+ +#### Trace Flag: 8209 Function: Output extra information to error log regarding replication of schema changes in SQL Server Replication
-Link: http://support.microsoft.com/kb/916706/en-us +Link: None + + + +#### Trace Flag: 8218 +Function: Determine whether trace flag to bypass proc generation has been set. +Referenced in the system procedure `[master].[sys].[sp_cdc_vupgrade]`
+Link: None -**Trace Flag: 8446**
+ +#### Trace Flag: 8295 +Function: Creates a secondary index on the identifying columns on the change tracking side table at enable time
+Link: https://social.msdn.microsoft.com/forums/sqlserver/en-US/00250311-7991-47b0-b788-7fae2e102254/trace-flag-8295
+Link: https://support.microsoft.com/help/2476322/
+Link: https://www.brentozar.com/archive/2014/06/performance-tuning-sql-server-change-tracking
+Link: https://blogs.technet.microsoft.com/smartinez/2013/03/06/sql-server-for-configmgr-2012-ebook-and-top-10-database-issues
+Thanks to: Wilfred van Dijk + + + +#### Trace Flag: 8446 Function: Databases in SQL 8 do not have a Service Broker ID. If you restore these databases on SQL 9 by using the WITH NORECOVERY option, these databases will not be upgraded causing mirroring & log-shipping configurations to fail.
-Link: https://support.microsoft.com/en-us/kb/959008 +Link: https://support.microsoft.com/help/959008 -**Trace Flag: 8501**
+ +#### Trace Flag: 8501 Function: Writes detailed information about Ms-DTC context & state changes to the log
Link: None -**Trace Flag: 8599**
+ +#### Trace Flag: 8599 Function: Allows you to use a save-point within a distributed transaction
Link: None -**Trace Flag: 8602**
-Function: Disable Query Hints
-Link: http://www.sqlservice.se/sv/start/blogg/sql-server-trace-flag-8602.aspx + +#### Trace Flag: 8602 +Function: This trace flag is used to ignore all the index hints specified in query or stored procedure. +We can use this trace flag to troubleshooting the query performance without changing index hints.
+Link: http://download.microsoft.com/download/6/e/5/6e52bf39-0519-42b7-b806-c32905f4a066/eim_perf_flowchart_final.pdf
+Link: http://sqlblog.com/blogs/kalen_delaney/archive/2008/02/26/lost-without-a-trace.aspx
+Link: http://www.sqlservergeeks.com/sql-server-trace-flag-8602/
+Scope: global only
+Demo: https://github.com/ktaranov/sqlserver-kit/blob/master/Scripts/Trace_Flag/Trace_Flag_8602.sql + + + +#### Trace Flag: 8605 +**Undocumented trace flag**
+Function: Displays logical and physical trees used during the optimization process
+Link: [More Undocumented Query Optimizer Trace Flags]
+Link: [Yet another X-Ray for the QP]
+Link: [Query Optimizer Deep Dive - Part 4] + + + +#### Trace Flag: 8606 +**Undocumented trace flag**
+Function: Show LogOp Trees
+Link: [Cardinality Estimation Framework 2014 First Look]
+Link: [Yet another X-Ray for the QP]
+Link: [Query Optimizer Deep Dive - Part 4] + + + +#### Trace Flag: 8607 +Function: Displays the optimization output tree during the optimization process (Before Post Optimization Rewrite).
+Link: [Internals of the Seven SQL Server Sorts – Part 1]
+Link: [More Undocumented Query Optimizer Trace Flags]
+Link: [Yet another X-Ray for the QP]
+Link: [Query Optimizer Deep Dive - Part 4]
+Link: [Few Outer Rows Optimization]
+Scope: session only + + + +#### Trace Flag: 8608 +Function: Shows the initial Memo structure
+Link: http://www.queryprocessor.ru/optimizer-part-3-full-optimiztion-optimization-search0
+Link: http://www.benjaminnevarez.com/2012/04/inside-the-query-optimizer-memo-structure
+Link: http://sqlblog.com/blogs/paul_white/archive/2012/04/29/query-optimizer-deep-dive-part-3.aspx
+Link: [Query Optimizer Deep Dive - Part 4] + + + +#### Trace Flag: 8609 +Function: PWhite: “Task and operation type counts”.
+Link: [Query Optimizer Deep Dive - Part 4]
+Link: http://www.queryprocessor.ru/good-enough-plan
+Scope: session only + + +#### Trace Flag: 8612 +Function: Add Extra Info to the Trees Output
+Link: [Cardinality Estimation Framework 2014 First Look]
+Link: http://sqlblog.com/blogs/paul_white/archive/2013/06/11/hello-operator-my-switch-is-bored.aspx -**Trace Flag: 8605**
-Function: Displays logical and physical trees used during the -optimization process
-Link: http://www.benjaminnevarez.com/2012/04/more-undocumented-query-optimizer-trace-flags/ + + +#### Trace Flag: 8615 +**Undocumented trace flag**
+Function: Display the final memo structure
+Link: http://www.benjaminnevarez.com/2012/04/inside-the-query-optimizer-memo-structure/
+Link: http://www.somewheresomehow.ru/optimizer-part-3-full-optimiztion-optimization-search0/
+Link: [A Row Goal Riddle]
+Scope: session only + + + +#### Trace Flag: 8619 +**Undocumented trace flag**
+Function: Show Applied Transformation Rules
+Link: http://sqlblog.com/blogs/paul_white/archive/2013/02/06/incorrect-results-with-indexed-views.aspx
+Link: [Cardinality Estimation Framework 2014 First Look]
+Link: [Yet another X-Ray for the QP]
+Link: [A Row Goal Riddle]
+Scope: session only + + + +#### Trace Flag: 8620 +**Undocumented trace flag**
+Function: Add memo arguments to trace flag 8619
+Link: [Query Optimizer Deep Dive - Part 4]
+Link: [Yet another X-Ray for the QP]
+Link: [A Row Goal Riddle]
+Scope: session only + + + +#### Trace Flag: 8621 +**Undocumented trace flag**
+Function: Rule with resulting tree
+Link: [Query Optimizer Deep Dive - Part 4]
+Link: [Yet another X-Ray for the QP]
+Link: [A Row Goal Riddle]
+Scope: session only + + + +#### Trace Flag: 8628 +**Undocumented trace flag**
+Function: When used with TF [8666](#8666), causes extra information about the transformation rules applied to be put into the XML showplan.
+Link: [Yet another X-Ray for the QP] -**Trace Flag: 8607**
-Function: Displays the optimization output tree during the optimization -process
-Link: http://www.benjaminnevarez.com/2012/04/more-undocumented-query-optimizer-trace-flags/ + +#### Trace Flag: 8633 +Function: PWhite: “Enable prefetch (CUpdUtil::FPrefetchAllowedForDML and CPhyOp_StreamUpdate::FDoNotPrefetch)”
+Link: http://sqlblog.com/blogs/paul_white/archive/2013/01/26/optimizing-t-sql-queries-that-change-data.aspx -**Trace Flag: 8649**
+ +#### Trace Flag: 8649 Function: Set Cost Threshold for parallelism from 1 to 0
-Link: http://www.sqlservice.se/sv/start/blogg/enable-parallellism-for-specific-query.aspx +Link: http://sqlblog.com/blogs/paul_white/archive/2011/12/23/forcing-a-parallel-query-execution-plan.aspx
+Link: http://sqlblog.com/blogs/adam_machanic/archive/2013/07/11/next-level-parallel-plan-porcing.aspx
+Link: [What You Need to Know about the Batch Mode Window Aggregate Operator in SQL Server 2016: Part 1]
+Link: [Few Outer Rows Optimization]
+Link: [Next-Level Parallel Plan Forcing: An Alternative to 8649]
+Scope: session only -**Trace Flag: 8675**
+ +#### Trace Flag: 8665 +**Undocumented trace flag**
+Function: Disables local/global aggregation.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 8666 +**Undocumented trace flag**
+Function: Included in execution plans are the names of the stats it used to come up with the plan. +Using a bit o' XML magic and over time, it allows you to clearly identify which stats are actually in use so that you can delete unused stats. +CQScanPartitionSortNew is one of only two sort classes that sets the Soft Sort property exposed when Sort operator execution plan properties are generated with undocumented trace flag 8666 enabled
+Link: [Internals of the Seven SQL Server Sorts – Part 1]
+Link: [Yet another X-Ray for the QP]
+Link: https://blogfabiano.com/2012/07/03/statistics-used-in-a-cached-query-plan
+Link: http://dataidol.com/davebally/2014/04/12/reasons-why-your-plans-suck-no-56536
+Link: https://www.mssqltips.com/sqlservertip/4269/how-to-identify-useful-sql-server-table-statistics/
+Link: http://sql-sasquatch.blogspot.com/2018/06/harvesting-sql-server-trace-flag-8666.html
+Link: [Fun with SQL Server Plan Cache, Trace Flag 8666, and Trace Flag 2388]
+Scope: global or session + + + +#### Trace Flag: 8671 +**Undocumented trace flag**
+Function: According to Dimitriy Pilugin, disables the logic that prunes the memo and prevents the optimization process from stopping due to “Good Enough Plan found”. +Can significantly increase the amount of time, CPU, and memory used in the compilation process
+Link: http://www.queryprocessor.ru/optimizer_unleashed_2 + + + +#### Trace Flag: 8675 Function: Displays the query optimization phases for a specific optimization
-Link: http://www.benjaminnevarez.com/2012/04/more-undocumented-query-optimizer-trace-flags/ +Link: [More Undocumented Query Optimizer Trace Flags]
+Link: http://sqlblog.com/blogs/paul_white/archive/2012/04/29/query-optimizer-deep-dive-part-3.aspx
+Link: https://sqlperformance.com/2013/06/sql-indexes/recognizing-missed-optimizations -**Trace Flag: 8679**
+ +#### Trace Flag: 8677 +**Undocumented trace flag**
+Function: Skips “Search 1” phase of query optimization, and only Search 0 and Search 2 execute.
+Link: https://sqlbits.com/Sessions/Event12/Query_Optimizer_Internals_Traceflag_fun + + + +#### Trace Flag: 8678 +**Undocumented trace flag**
+Function: For one query this changed a bushy plan to a left deep one. There was no change in cost. Full effect unknown.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 8679 +**Undocumented trace flag**
Function: Prevents the SQL Server optimizer from using a Hash Match Team operator
Link: None -**Trace Flag: 8687**
+ +#### Trace Flag: 8687 +**Undocumented trace flag**
Function: Prevents the SQL Server optimizer from using a Hash Match Team operator
Link: None -**Trace Flag: 8690**
+ +#### Trace Flag: 8688 **Undocumented trace flag**
-Function: Disable the spool on the inner side of nested loop.
-Spools improve performance in majority of the cases. But it’s based on estimates. Sometimes, this can be incorrect due to unevenly distributed or skewed data, causing slow performance. But in vast majority of situations, you don’t need to manually disable spool with this trace flag.
-Link: https://blogs.msdn.microsoft.com/psssql/2015/12/15/spool-operator-and-trace-flag-8690/ -Link: http://dba.stackexchange.com/questions/52552/index-not-making-execution-faster-and-in-some-cases-is-slowing-down-the-query +Function: Disables parallel scans.
+Link: [New Undocumented Trace Flags]
+Scope: ? -**Trace Flag: 8721**
-Function: Dumps information into the error log when AutoStat has been run
-Link: None + +#### Trace Flag: 8690 +**Undocumented trace flag**
+Function: Disable the spool on the inner side of nested loop. +Spools improve performance in majority of the cases. But it’s based on estimates. +Sometimes, this can be incorrect due to unevenly distributed or skewed data, causing slow performance. +But in vast majority of situations, you don’t need to manually disable spool with this trace flag.
+Link: https://blogs.msdn.microsoft.com/psssql/2015/12/15/spool-operator-and-trace-flag-8690/
+Link: http://dba.stackexchange.com/questions/52552/index-not-making-execution-faster-and-in-some-cases-is-slowing-down-the-query
+Link: http://connect.microsoft.com/SQL/feedback/ViewFeedback.aspx?FeedbackID=453982 + + + +#### Trace Flag: 8691 +**Undocumented trace flag**
+Function: 'performance spool' optimization to the RegEx execution, reduces the number of executions of the RegEx function.
+Link: [Splitting Strings Based on Patterns]
+Scope: ? + + + +#### Trace Flag: 8692 +Function: Force optimizer to use an Eager Spool for Halloween Protection
+Link: http://www.sqlperformance.com/2013/02/sql-plan/halloween-problem-part-4
+Link: https://sqlperformance.com/2016/03/sql-plan/changes-to-a-writable-partition-may-fail + + + +#### Trace Flag: 8719 +Function: In SQL 2000, apparently would show IO prefetch on loop joins and bookmarks. I (Aaron) was unable to replicate the query plan behavior on SQL 2012 using the same test, so this flag may be obsolete.
+Link: http://www.hanlincrest.com/SQLServerLockEscalation.htm + + + +#### Trace Flag: 8720 +Function: In SQL 2000, apparently would have the same effect as OPTION(KEEPFIXED PLAN)
+Link: http://www.hanlincrest.com/SQLserverStoredProcRecompiles.htm -**Trace Flag: 8722**
+ +#### Trace Flag: 8721 +Function: Reports to the error log when auto-update statistics executes
+Link: https://support.microsoft.com/help/195565
+Link: [Docs Trace Flags]
+Link: http://www.sqlservergeeks.com/sql-server-trace-flag-8721/
+Scope: global only + + + +#### Trace Flag: 8722 Function: Disable all hints except locking hints
Link: http://sqlmag.com/sql-server/investigating-trace-flags -**Trace Flag: 8744**
-Function: Disable pre-fetching for ranges
-Link: http://support.microsoft.com/kb/920093 + +#### Trace Flag: 8738 +Function: (Apparently) disables an optimization where rows are sorted before a Key Lookup operator. (The optimization is meant to promote Sequential IO rather than the random nature of IO from Key Lookups). +Note that the context in which this flag is described means that the above description may not be very precise, or even the only use of this flag.
+Link: https://answers.sqlperformance.com/questions/603/why-is-the-sort-operator-needed-in-this-plan.html + + + +#### Trace Flag: 8739 +Function: Group Optimization Information
+Link: http://www.queryprocessor.ru/good-enough-plan + + + +#### Trace Flag: 8741 +**Undocumented trace flag**
+Function: Resulted in a different join order for some queries with a higher estimated cost. Perhaps this disables Transitive Predicates? Full effect unknown.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 8742 +**Undocumented trace flag**
+Function: Resulted in a different join order for some queries. Full effect unknown.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 8743 +**Undocumented trace flag**
+Function: Disable SM join.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 8744 +Function: Disable pre-fetching for the Nested Loop operator. +Incorrect use of this trace flag may cause additional physical reads when SQL Server executes plans that contain the Nested Loops operator.
+Link: [KB920093]
+Link: [Docs Trace Flags]
+Link: http://sqlblog.com/blogs/paul_white/archive/2013/03/08/execution-plan-analysis-the-mystery-work-table.aspx
+Link: https://connect.microsoft.com/SQLServer/feedback/details/780194/make-dbcc-trace-flags-available-as-option-querytraceon
+Scope: global or session + + +#### Trace Flag: 8746 +Function: Whatever else it does, one effect is to disable the “rowset sharing” optimization described in the 2 PWhite posts.
+Link: https://sqlperformance.com/2016/03/sql-plan/changes-to-a-writable-partition-may-fail -**Trace Flag: 8755**
+ + +#### Trace Flag: 8750 +**Undocumented trace flag**
+Function: Skips search 0 optimization phase and moves to search 1.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 8755 Function: Disable all locking hints
Link: http://sqlmag.com/sql-server/investigating-trace-flags -**Trace Flag: 8757**
+ +#### Trace Flag: 8757 Function: Skip trivial plan optimization and force a full optimization
-Link: http://www.benjaminnevarez.com/2012/04/more-undocumented-query-optimizer-trace-flags/ +Link: [More Undocumented Query Optimizer Trace Flags]
+Link: http://sqlblog.com/blogs/paul_white/archive/2012/04/28/query-optimizer-deep-dive-part-1.aspx + + + +#### Trace Flag: 8758 +Function: “A [workaround to the MERGE bug described] is to apply Trace Flag 8758 –unfortunately this disables a number of optimisations, not just the one +above, so it’s not really recommended for long term use.” “Disable rewrite to a single operator plan (CPhyOp_StreamUpdate::PqteConvert)”
+Link: http://sqlblog.com/blogs/paul_white/archive/2010/08/04/another-interesting-merge-bug.aspx
+Link: http://sqlblog.com/blogs/paul_white/archive/2013/01/26/optimizing-t-sql-queries-that-change-data.aspx
+ + + +#### Trace Flag: 8759 +**Undocumented trace flag**
+Function: Detect and write part of the query to the error log when it has been autoparameterized.
+Link: https://github.com/ktaranov/sqlserver-kit/issues/146#issue-358855110
+Scope: ? -**Trace Flag: 8765**
+ +#### Trace Flag: 8765 Function: Allows use of variable length data, from ODBC driver; fixes the issue of a field returning the wrong data length
-Link: None +Link: http://jacob.steelsmith.org/content/sql-server-and-ole-db
+Scope: global or session -**Trace Flag: 8780**
+ +#### Trace Flag: 8780 Function: Give the optimizer more time to find a better plan
-Link: http://www.sqlservice.se/sv/start/blogg/sql-server-trace-flag--8780.aspx +Link: http://www.queryprocessor.ru/optimizer_unleashed_1
+Link: http://www.sqlservice.se/sql-server-trace-flag-8780/
+Scope: global or session -**Trace Flag: 8783**
+ +#### Trace Flag: 8783 Function: Allows DELETE, INSERT, and UPDATE statements to honor the SET ROWCOUNT ON setting when enabled
Link: None -**Trace Flag: 8816**
+ +#### Trace Flag: 8790 +Function: PWhite: “Undocumented trace flag 8790 forces a wide update plan for any data-changing query (remember that a wide update plan is always possible)”
+Link: https://support.microsoft.com/help/956718/
+Link: http://sqlblog.com/blogs/paul_white/archive/2012/12/10/merge-bug-with-filtered-indexes.aspx
+Link: https://sqlperformance.com/2014/06/sql-plan/filtered-index-side-effect + + + +#### Trace Flag: 8795 +Function: PWhite: “Disable DML Request Sort (CUpdUtil::FDemandRowsSortedForPerformance)”
+Link: http://sqlblog.com/blogs/paul_white/archive/2013/01/26/optimizing-t-sql-queries-that-change-data.aspx
+Link: https://sqlperformance.com/2014/10/t-sql-queries/performance-tuning-whole-plan + + + +#### Trace Flag: 8799 +**Undocumented trace flag**
+Function: Forces unordered scans.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 8809 +Function: Extended Page Heap Activities. +Referenced in passing in the CSS article in relation to debugging memory scribbler problems.
+Link: https://blogs.msdn.microsoft.com/psssql/2012/11/12/how-can-reference-counting-be-a-leading-memory-scribbler-cause/ + + + +#### Trace Flag: 8816 Function: Logs every two-digit year conversion to a four-digit year
Link: None -**Trace Flag: 9024**
-Function: Performance fix for AlwaysON log replication
-Link: http://support.microsoft.com/kb/2809338/en-us -Related to: 8048 + +#### Trace Flag: 8901 +Function: Enables new (in 7.0) code to correct a problem with the SHRINK command and empty text or image extents
+Link: None + + + +#### Trace Flag: 8903 +Function: Allows SQL Server to use a specific API (SetFileIoOverlappedRange) when Locked Pages in Memory is enabled.
+Link: https://blogs.msdn.microsoft.com/psssql/2012/03/20/setfileiooverlappedrange-can-lead-to-unexpected-behavior-for-sql-server-2008-r2-or-sql-server-2012-denali
+Link: https://support.microsoft.com/help/2679255/
+Link: https://blogs.msdn.microsoft.com/psssql/2013/10/16/every-time-i-attach-database-sql-logs-error-1314-for-setfileiooverlappedrange + + + +#### Trace Flag: 9024 +Function: Converts a global log pool memory object into NUMA node partitioned memory object
+**Note: Beginning with SQL Server 2012 SP3 and SQL Server 2014 SP1 this behavior is controlled by the engine and trace flag 9024 has no effect.**
+Link: https://support.microsoft.com/help/2809338
+Link: [Docs Trace Flags]
+Scope: global only
+Related to: [8048](#8048) + + + +#### Trace Flag: 9050 +Function: “FIX: The compile time for a query that uses at least one outer join may be greater for SQL Server post-SP3 builds”
+Link: None -**Trace Flag: 9059**
+ +#### Trace Flag: 9052 +Function: “FIX: Queries that join a view may run slowly if the view contains outer joins”
+Link: None + + + +#### Trace Flag: 9054 +Function: “FIX: SQL Server 2000 Service Pack 1 (SP1) and later builds may not generate an execution plan for a query, and you receive error message 8623”
+Link: None + + + +#### Trace Flag: 9055 +Function: “FIX: The performance of a DML operation that fires a trigger may decrease when the trigger execution plan recompiles repeatedly”
+Link: None + + + +#### Trace Flag: 9056 +Function: “FIX: A user-defined function returns results that are not correct for a query”
+Link: None + + + +#### Trace Flag: 9059 Function: SQL 8 - Turns back behavior to SP3 after a SP4 installation, this allows to choose an index seek when comparing numeric columns or numeric constants that are of different precision or scale; else would have to change schema/code.
Link: None -**Trace Flag: 9082**
+ +#### Trace Flag: 9061 +Function: “FIX: Build 8.00.0837: A query that contains a correlated subquery runs slowly”
+Link: None + + + +#### Trace Flag: 9062 +Function: “FIX: Some complex queries are slower after you install SQL Server 2000 Service Pack 2 or SQL Server 2000 Service Pack 3”
+Link: None + + + +#### Trace Flag: 9063 +Function: “FIX: Query performance may be slower if the query contains both a GROUP BY clause and a DISTINCT keyword on the same column”
+Link: None + + + +#### Trace Flag: 9065 +Function: “FIX: The query plan may take longer than expected to compile, and you may receive error message 701, error message 8623, or error message 8651 in SQL Server 2000”
+Link: None + + + +#### Trace Flag: 9068 +Function: “FIX: A query may run more slowly against SQL Server 2000 post-SP3 hotfix build 8.00.0988 than a query that you run against SQL Server 2000 post-SP3 hotfix builds that are earlier than build 8.00.0988”
+Link: None + + + +#### Trace Flag: 9079 +Function: “FIX: The query performance may be slow when you query data from a view in SQL Server 2000”
+Link: None + + + +#### Trace Flag: 9082 Function: SQL 9 - Stored procedure using views, perform slow compared to ver 8 if views use JOIN operator and contain sub queries
-Link: https://support.microsoft.com/en-us/kb/942906 +Link: None + + +#### Trace Flag: 9109 +Function: Used to workaround a problem with query notifications and restoring a DB with the NEW_BROKER option enabled.
+Link: https://support.microsoft.com/help/2483090/ + + + +#### Trace Flag: 9114 +**Undocumented trace flag**
+Function: Implemented a (SELECT 1) = 1 predicate as a join instead of optimizing it away.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + +#### Trace Flag: 9115 +Function: PWhite: “Disable prefetch (CUpdUtil::FPrefetchAllowedForDML)” Dima: “Disables both [NLoop Implicit Batch Sort {TF 2340} and NL Prefetching {TF 8744}], and not only on the Post Optimization, but the explicit Sort also”
+Link: http://sqlblog.com/blogs/paul_white/archive/2013/01/26/optimizing-t-sql-queries-that-change-data.aspx
+Link: http://www.hanlincrest.com/SQLServerLockEscalation.htm
+Link: http://www.queryprocessor.com/batch-sort-and-nested-loops -**Trace Flag: 9134**
+ + +#### Trace Flag: 9130 +Function: Disables the particular copy out stage rewrite from Filter + (Scan or Seek) to (Scan or Seek) + Residual Predicate. +Enabling this flag retains the Filter in the final execution plan, resulting in a SQL Server 2008+ plan that mirrors the 2005 version.
+Link: http://sqlblog.com/blogs/paul_white/archive/2012/10/15/cardinality-estimation-bug-with-lookups-in-sql-server-2008-onward.aspx
+Link: http://sqlblogcasts.com/blogs/sqlandthelike/archive/2012/12/06/my-new-favourite-traceflag.aspx
+Link: http://sqlblog.com/blogs/paul_white/archive/2013/06/11/hello-operator-my-switch-is-bored.aspx
+Link: https://connect.microsoft.com/SQLServer/feedback/details/767395/cardinality-estimation-error-with-pushed-predicate-on-a-lookup
+Link: http://www.theboreddba.com/Categories/FunWithFlags/Revealing-Predicates-in-Execution-Plans-(TF-9130).aspx + + + +#### Trace Flag: 9134 Function: SQL 8 - Does additional reads to test if the page is allocated & linked correctly this checks IAM & PFS. Fixes error 601 for queries under Isolation level read uncommitted. In case performance is affected (because of a bug) apply SP4.
+Link: https://support.microsoft.com/help/815008/ + + + +#### Trace Flag: 9136 +Function: “PRB: You receive error message 8623 when you try to run a query that joins multiple tables”
Link: None -**Trace Flag: 9185**
+ +#### Trace Flag: 9164 +**Undocumented trace flag**
+Function: Disables HM (hash joins).
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9165 +**Undocumented trace flag**
+Function: Disable NL join and remove an index recommendation from a plan.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9182 +**Undocumented trace flag**
+Function: Resulted in a very strange cost change to a clustered index delete.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9183 +**Undocumented trace flag**
+Function: Resulted in a very strange cost change to a clustered index delete.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9185 Function: Cardinality estimates for literals that are outside the histogram range are very low
-Link: https://support.microsoft.com/en-us/kb/kbview/833406 -Related to: 9205 +Link: None +Related to: [9205](#9205) -**Trace Flag: 9204**
+ +#### Trace Flag: 9204 Function: Output Statistics used by Query Optimizer. When enabled and a plan is compiled or recompiled there is a listing of statistics which is being fully loaded & used to produce cardinality and distribution estimates for some plan alternative or other.
-Link: http://sqlblog.com/blogs/paul_white/archive/2011/09/21/how-to-find-the-statistics-used-to-compile-an-execution-plan.aspx -Related to: 9292 +Link: [How to Find the Statistics Used to Compile an Execution Plan]
+Link: http://www.sqlservergeeks.com/sql-server-trace-flag-9204/
+Scope: global only +Related to: [9292](#9292) -**Trace Flag: 9205**
+ +#### Trace Flag: 9205 Function: Cardinality estimates for literals that are outside the histogram range are very low for tables that have parent-child relationships
-Link: https://support.microsoft.com/en-us/kb/kbview/833406 -Related to: 9185 +Link: None +Related to: [9185](#9185) -**Trace Flag: 9207**
-Function: Fixes that SQL Server underestimates the cardinality of a -query expression and query performance may be slow
-Link: https://support.microsoft.com/en-us/kb/831302 + +#### Trace Flag: 9207 +Function: Fixes that SQL Server underestimates the cardinality of a query expression and query performance may be slow
+Link: None -**Trace flag: 9259**
-Function: SQL 9/10 - An access violation occurs on running a query marked by the following message and a dump in the log folder: KB 970279 / 971490. Msg 0, Level 11, State 0, Line 0 - A severe error occurred on the current command. The results, if any, should be discarded.
+ +#### Trace Flag: 9209 +Function: “FIX: Some queries that have a left outer join and an IS NULL filter run slower after you install SQL Server 2000 post-SP3 hotfix”
Link: None -**Trace flag: 9268**
+ +#### Trace Flag: 9210 +Function: “FIX: A query filter condition that has a LEFT OUTER JOIN clause may cause an incorrect row count estimate in the query execution plan”
+Link: None + + + +#### Trace Flag: 9236 +**Undocumented trace flag**
+Function: Resulted in a different join order for some queries. Full effect unknown.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9251 +**Undocumented trace flag**
+Function: Change in cardinality estimates for some queries. It might only work with the legacy CE. Full effect unknown.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9259 +Function: Disables Project Normalization step
+**Note: Please, don’t use TF 9259 that disables Project Normalization step in a real production system, besides it is undocumented and unsupported, it may hurt your performance.**
+Link: http://www.queryprocessor.com/sudf-ce/ + + + +#### Trace Flag: 9260 +**Undocumented trace flag**
+Function: Adds an explicit sort before creation of an index spool. Almost doesn’t change the total estimated cost. Might be identical plans with just more detail shown at that step.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9268 Function: SQL 8 - When SQL Server runs a parameterized query that contains several IN clauses, each with a large number of values, SQL Server may return the following error message after a minute or more of high CPU utilization: KB 325658. Server: Msg 8623, Level 16, State 1. Internal Query Processor Error: The query processor could not produce a query plan. Contact your primary support provider for more information.
Link: None -**Trace Flag: 9292**
+ +#### Trace Flag: 9275 +Function: “FIX: A DML Operation on a Large Table Can Cause Performance Problems” Enables SQL 2000 optimizations that sort data in DML statements before the changes are applied to a clustered index
+Link: None + + + +#### Trace Flag: 9284 +**Undocumented trace flag**
+Function: Changed the order of a scalar operator comparison in a single join for certain queries. Full effect unknown.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9287 +**Undocumented trace flag**
+Function: Appears to disable partial aggreation.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9288 +**Undocumented trace flag**
+Function: Effects around local and global aggregates - choose coerce partial and global aggregation over scalar aggregation.
+Link: https://github.com/ktaranov/sqlserver-kit/issues/93
+Scope: local only + + + +#### Trace Flag: 9292 Function: Output Statistics considered to be used by Query Optimizer
-Link: http://sqlblog.com/blogs/paul_white/archive/2011/09/21/how-to-find-the-statistics-used-to-compile-an-execution-plan.aspx -Related to: 9204 +Link: [How to Find the Statistics Used to Compile an Execution Plan]
+Link: http://www.sqlservergeeks.com/sql-server-trace-flag-9292/
+Scope: session only +Related to: [9204](#9204) + + + +#### Trace Flag: 9341 +**Undocumented trace flag**
+Function: Resulted in a rather odd plan for a COUNT(DISTINCT) query against a CCI.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9346 +**Undocumented trace flag**
+Function: Appears to disable batch mode window aggregates.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9347 +Function: Disables batch mode for sort operator. SQL Server 2016 introduces a new batch mode sort operator that boosts performance for many analytical queries.
+Link: https://support.microsoft.com/help/3172787
+Link: [Docs Trace Flags]
+Link: [Niko Neugebauer Columnstore Indexes – part 86]
+Scope: global only + + + +#### Trace Flag: 9348 +Function: Sets a row limit (based on cardinality estimates) that controls whether a bulk insert is attempted or not (assuming conditions are met for a bulk insert). Introduced as a workaround for memory errors encountered with bulk insert.
+Link: https://support.microsoft.com/help/2998301/ + + + +#### Trace Flag: 9349 +Function: Disables batch mode for top N sort operator. SQL Server 2016 introduces a new batch mode top sort operator that boosts performance for many analytical queries.
+Link: [Docs Trace Flags]
+Link: [Niko Neugebauer Columnstore Indexes – part 86]
+Link: https://support.microsoft.com/help/3172787
+Scope: global or session or query + + + +#### Trace Flag: 9354 +**Undocumented trace flag**
+Function: Disable [aggregate pushdown](http://www.nikoport.com/2015/07/11/columnstore-indexes-part-59-aggregate-pushdown/) operations for columnstore indexes. +The number of rows aggregated at the level of the scan is displayed in the new property plan [Actual Number Of Locally Aggregated Rows](http://www.nikoport.com/2016/03/21/clustered-columnstore-indexes-part-80-local-aggregation/). +TF 9354 can be used to disable the push of aggregation, the difference can be observed by the runtime, according to the number of rows in the plan Actual Number Of Locally Aggregated Rows and number Actual Number Of Rows output from the scan operator.
+Example: + +```sql +use AdventureworksDW2016CTP3; +set nocount on; +go +-- Undocumented TF 9354 disables this optimization, run to see Aggregation Pushdown Performance Gain +set statistics xml, time on; +select count_big(*) from dbo.FactResellerSalesXL_CCI; +select count_big(*) from dbo.FactResellerSalesXL_CCI option(querytraceon 9354); -- undocumented/unsupported TF 9354 to disable aggregate pushdown +set statistics xml, time off; +``` + + + +#### Trace Flag: 9358 +Function: Disable batch mode sort operations in a complex parallel query. For example, this flag could apply if the query contains merge join operations.
+Link: [Niko Neugebauer Columnstore Indexes – part 86]
+Link: https://support.microsoft.com/help/3171555 + + + +#### Trace Flag: 9384 +**Undocumented trace flag**
+Function: Very slightly changed the memory grant of a query with a batch mode window aggregate.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9389 +Function: Enables dynamic memory grant for batch mode operators. If a query does not get all the memory it needs, it spills data to tempdb, incurring additional I/O and potentially impacting query performance. +If the dynamic memory grant trace flag is enabled, a batch mode operator may ask for additional memory and avoid spilling to tempdb if additional memory is available.
+Link: [Niko Neugebauer Columnstore Indexes – part 86]
+Link: [Docs Trace Flags]
+Scope: global or session + + + +#### Trace Flag: 9390 +**Undocumented trace flag**
+Function: Resulted in plan changes including parallelism for queries that shouldn’t have been eligible for parallelism based on CTFP. Full effect unknown.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9394 +Function: Apparently enables a fix for an access violation when a table with Japanese characters has an indexed changed.
+Link: https://support.microsoft.com/help/3142595/
+Link: https://support.microsoft.com/help/3138659/ + + + +#### Trace Flag: 9398 +**Undocumented trace flag**
+Function: Disable adaptive join.
+Link: [SQL Server 2017: Adaptive Join Internals]
+Scope: ? + + + +#### Trace Flag: 9399 +**Undocumented trace flag**
+Function: Optimization adaptive threshold rows. The adaptive threshold to the minimum estimate.
+Link: [SQL Server 2017: Adaptive Join Internals]
+Scope: ? + + + +#### Trace Flag: 9410 +**Undocumented trace flag**
+Function: Fix slowly query runs when SQL Server uses hash aggregate in the query plan.
+Link: https://support.microsoft.com/help/3167159/
+Scope: ? + + + +#### Trace Flag: 9412 +**Undocumented trace flag**
+Function: Removes the new OptimizerStatsUsage information from estimated query plans.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9415 +**Undocumented trace flag**
+Function: Optimization adaptive join internals.
+Link: [SQL Server 2017: Adaptive Join Internals]
+Scope: ? + + + +#### Trace Flag: 9447 +**Undocumented trace flag**
+Function: Forces query plans to use the new referential integrity operator when validating UPDATE and DELETE queries against foreign key parent tables.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9448 +**Undocumented trace flag**
+Function: Disables the referential integrity operator.
+Link: https://orderbyselectnull.com/2017/12/05/the-referential-integrity-operator/ + + + +#### Trace Flag: 9453 +Function: Disables Batch Mode in Parallel Columnstore query plans. +(Note that a plan using batch mode appears to require a recompile before the TF takes effect) +Sunil Agarwal also used this trace flag in demo scripts for a PASS 2014 session on column store indexing
+Link: [Niko Neugebauer Columnstore Indexes – part 35]
+Link: [What You Need to Know about the Batch Mode Window Aggregate Operator in SQL Server 2016: Part 1] + + + +#### Trace Flag: 9471 +Function: Causes SQL Server to generate a plan using minimum selectivity for single-table filters, under the query optimizer cardinality estimation model of SQL Server 2014 through SQL Server 2016 versions. +Beginning with SQL Server 2016 SP1, to accomplish this at the query level, add the USE HINT query hint instead of using this trace flag.
+**Note: Please ensure that you thoroughly test this option, before rolling it into a production environment.**
+Link: [New Features in SQL Server 2016 Service Pack 1]
+Link: [Docs Trace Flags]
+Scope: global or session or query + + + +#### Trace Flag: 9472 +Function: Assumes independence for multiple WHERE predicates in the SQL 2014 cardinality estimation model. Predicate independence was the default for versions prior to SQL Server 2014, and thus this flag can be used to more closely emulate pre-SQL 2014 cardinality estimate behavior in a more specific fashion than TF 9481.
+Link: https://sqlperformance.com/2014/01/sql-plan/cardinality-estimation-for-multiple-predicates
+Link: https://connect.microsoft.com/SQLServer/feedback/details/801908/sql-server-2014-cardinality-estimation-regression + + + +#### Trace Flag: 9473 +**Undocumented trace flag**
+Function: Allowing the outer join to keep a zero-row inner-side estimate (instead of raising to one row) (so all outer rows qualify) gives a 'bug-free' join estimation with either calculator. +If you're interested in exploring this, the undocumented trace flag is 9473 (alone).
+Link: https://dba.stackexchange.com/a/141533/107045
+Scope: ? + + + +#### Trace Flag: 9474 +**Undocumented trace flag**
+Function: Change in cardinality estimates for some joins in certain queries. Full effect unknown.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9476 +Function: Causes SQL Server to generate a plan using the Simple Containment assumption instead of the default Base Containment assumption, under the query optimizer cardinality estimation model of SQL Server 2014 through SQL Server 2016 versions. +Beginning with SQL Server 2016 SP1, to accomplish this at the query level, add the USE HINT query hint instead of using this trace flag. +**Note: Please ensure that you thoroughly test this option, before rolling it into a production environment.**
+Link: https://support.microsoft.com/help/3189675
+Link: [New Features in SQL Server 2016 Service Pack 1]
+Link: [Docs Trace Flags]
+Scope: global or session or query + + + +#### Trace Flag: 9477 +**Undocumented trace flag**
+Function: Slight change in ratio of EstimateRebinds and EstimateRewinds was observed. Full effect unknown.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9478 +**Undocumented trace flag**
+Function: Change in cardinality estimates for some joins in certain queries. Full effect unknown.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9479 +**Undocumented trace flag**
+Function: Forces the optimizer to use Simple Join [estimation] even if a histogram is available. +Will force optimizer to use a simple join estimation algorithm, it may be CSelCalcSimpleJoinWithDistinctCounts, CSelCalcSimpleJoin or CSelCalcSimpleJoinWithUpperBound, depending on the compatibility level and predicate comparison type.
+Link: [Statistics and Cardinality Estimation]
+Scope: ? + + + +#### Trace Flag: 9480 +**Undocumented trace flag**
+Function: Reduced the selectivity of a bitmap filter from 0.001 to 0.000001. Full effect unknown.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 9481 +Function: Enables you to set the query optimizer cardinality estimation model to the SQL Server 2012 and earlier version independent of the compatibility level of the database. +To accomplish this at the database level, see [ALTER DATABASE SCOPED CONFIGURATION (Transact-SQL)]. +To accomplish this at the query level, add the QUERYTRACEON query hint
+Link: [New Features in SQL Server 2016 Service Pack 1]
+Link: https://sqlserverscotsman.wordpress.com/2016/11/28/a-guide-on-forcing-the-legacy-ce/
+Link: [Docs Trace Flags]
+Link: [KB2801413]
+Link: http://www.sqlservergeeks.com/sql-server-2014-trace-flags-9481/
+Link: https://sqlperformance.com/2019/01/sql-performance/compatibility-levels-and-cardinality-estimation-primer +Scope: global or session or query + + + +#### Trace Flag: 9482 +**Undocumented trace flag**
+Function: Implements a “model variation” in the SQL 2014 cardinality estimator. The flag turns off the “overpopulated primary key” adjustment that the optimizer might use when determining that a “dimension” table (the schema could be OLTP as well) has many +more distinct values than the “fact” table. (The seminal example is where a Date dimension is populated out into the future, but the fact table only has rows up to the current date). Since join cardinality estimation occurs based on the contents of the +histograms of the joined columns, an “overpopulated primary key” can result in higher selectivity estimates, causing rowcount estimates to be too low.
+Link: http://www.queryprocessor.com/ce_opk + + + +#### Trace Flag: 9483 +**Undocumented trace flag**
+Function: Implements a “model variation” in the SQL 2014 cardinality estimator. The flag will force the optimizer to create (if possible) a filtered statistics object based on a predicate in +the query. This filtered stat object is not persisted and thus would be extremely resource intensive for frequent compilations. In Dima’s example, the filtered stat object +is actually created on the join column...i.e. “CREATE STATISTICS [filtered stat obj] ON [table] (Join column) WHERE (predicate column = ‘literal’)”
+Link: http://www.queryprocessor.com/ce_filteredstats -**Trace Flag: 9481**
-Function: Forces the query optimizer to use the SQL Server 2012 version -of the cardinality estimator when creating the query plan when running -SQL Server 2014 with the default database compatibility level 120
-Link: http://support.microsoft.com/kb/2801413 + +#### Trace Flag: 9484 +**Undocumented trace flag**
+Function: Slight change in estimated number of rewinds. Full effect unknown.
+Link: [New Undocumented Trace Flags]
+Scope: ? -**Trace Flag: 9485**
+ +#### Trace Flag: 9485 Function: Disables SELECT permission for DBCC SHOW\_STATISTICS
-Link: https://support.microsoft.com/en-us/kb/2683304
-Link: http://msdn.microsoft.com/en-us/library/ms188396.aspx +Link: https://support.microsoft.com/help/2683304
+Link: [Docs Trace Flags]
+Link: http://www.benjaminnevarez.com/2013/02/dbcc-show_statistics-works-with-select-permission
+Scope: global only + + + +#### Trace Flag: 9488 +**Undocumented trace flag**
+Function: Implements a “model variation” in the SQL 2014 cardinality estimator. This flag reverts the estimation behavior for multi-statement TVFs back to 1 row (instead of the 100-row estimate behavior that was adopted in SQL 2014).
+Link: http://www.queryprocessor.com/ce_mtvf + + + +#### Trace Flag: 9489 +**Undocumented trace flag**
+Function: Implements a “model variation” in the SQL 2014 cardinality estimator and turns off the new logic that handles ascending keys.
+Link: http://www.queryprocessor.com/ce_asckey + + + +#### Trace Flag: 9490 +**Undocumented trace flag**
+Function: Change in cardinality estimate. Full effect unknown.
+Link: [New Undocumented Trace Flags]
+Scope: ? -**Trace Flag: 9532**
+ +#### Trace Flag: 9494 +**Undocumented trace flag**
+Function: The behaviour of the join cardinality estimation with CSelCalcExpressionComparedToExpression can also be modified to not account for ``bId` with another undocumented variation flag (9494)
+Link: https://dba.stackexchange.com/a/141533/107045
+Scope: ? + + + +#### Trace Flag: 9495 +Function: Disables parallelism during insertion for INSERT...SELECT operations and it applies to both user and temporary tables
+Link: https://support.microsoft.com/help/3180087
+Link: [Docs Trace Flags]
+Scope: global or session + + + +#### Trace Flag: 9532 Function: SQL 11 CTP3 - to get more than 1 availability group replica in CTP3 Scope Startup
Link: http://connect.microsoft.com/SQLServer/feedback/details/682581/denali-hadron-read-only-routing-url-is-not-yet-implemente -**Trace Flag: 9806**
+ +#### Trace Flag: 9559 +**Undocumented trace flag**
+Function: For AGs, “when enabled on the secondary ignores the redo target provided from the primary progress message and always set the redo target at the Max LSN value.”
+Link: https://blogs.msdn.microsoft.com/alwaysonpro/2013/12/04/recovery-on-secondary-lagging-shared-redo-target + + + +#### Trace Flag: 9567 +Function: Enables compression of the data stream for availability groups during automatic seeding. +Compression can significantly reduce the transfer time during automatic seeding and will increase the load on the processor.
+Link: [Docs Trace Flags]
+Link: https://www.mssqltips.com/sqlservertip/4537/sql-server-2016-availability-group-automatic-seeding/
+Link: https://msdn.microsoft.com/en-us/library/mt735149.aspx
+Link: [Tune compression for availability group]
+Scope: global or session + + + +#### Trace Flag: 9576 +Function: Revert to the original (SQL Server 2016) implementation of database level health detection using TF 9576 as either a startup parameter or enabled using DBCC TRACEON command. +This new implementation is currently only available for SQL Server running on Windows and will be ported to SQL Server 2017 on Linux in an upcoming cumulative update.
+Link: https://blogs.msdn.microsoft.com/sql_server_team/sql-server-availability-groups-enhanced-database-level-failover/
+Scope: global only + + + +#### Trace Flag: 9591 +Function: Disables log block compression in Always On Availability Groups. +Log block compression is the default behavior used with both synchronous and asynchronous replicas in SQL Server 2012 and SQL Server 2014. +In SQL Server 2016, compression is only used with asynchronous replica.
+Link: [Docs Trace Flags]
+Scope: global or session + + + +#### Trace Flag: 9592 +Function: Enables log stream compression for synchronous availability groups. +This feature is disabled by default on synchronous availability groups because compression adds latency.
+Link: [Docs Trace Flags]
+Link: [Tune compression for availability group]
+Scope: global or session + + + +#### Trace Flag: 9706 +**Undocumented trace flag**
+Function: Software Usage Metrics is disabled.
+Link: [Bad Idea Jeans: Finding Undocumented Trace Flags] + + + +#### Trace Flag: 9806 +**Undocumented trace flag**
Function: Unknown. Is turned on on SQL Server 2014 CTP1 standard installation in Windows Azure VM
Link: None -**Trace Flag: 9807**
+ +#### Trace Flag: 9807 +**Undocumented trace flag**
Function: Unknown. Is turned on on SQL Server 2014 CTP1 standard installation in Windows Azure VM
Link: None -**Trace Flag: 9808**
+ +#### Trace Flag: 9808 +**Undocumented trace flag**
Function: Unknown. Is turned on on SQL Server 2014 CTP1 standard installation in Windows Azure VM
Link: None -**Trace Flag: 9830**
+ +#### Trace Flag: 9830 +**Undocumented trace flag**
+Function: Activate the trace flag before creating a natively compiled procedure. +If you now open up the SQL Server error log you should see the compilation process for the natively compiled procedure. +This is an undocumented trace flag so please don’t use this on a production system.
+Link: https://web.archive.org/web/20160327221828/http://speedysql.com/2015/10/28/new-trace-flag-for-in-memory-oltp-hekaton/ + + + +#### Trace Flag: 9837 +**Undocumented trace flag**
+Function: According to Bob Ward’s PASS 2014 talk on SQL Server IO, enables “extra tracing but massive output” for Hekaton checkpoint files.
+Link: None + + + +#### Trace Flag: 9850 +**Undocumented trace flag**
+Function: Dumps more diagnostic stuff in the log.
+Link: [Bad Idea Jeans: Finding Undocumented Trace Flags] + + + +#### Trace Flag: 9851 +**Undocumented trace flag**
+Function: For testing purposes, you might want to turn off automatic merging of files, so that you can more readily +explore this metadata. You can do that by turning on the undocumented trace flag 9851. And of course, +be sure to turn off the trace flag when done testing.
+Link: http://gsl.azurewebsites.net/Portals/0/Users/dewitt/talks/HekatonWhitePaper.pdf + + + +#### Trace Flag: 9929 +Function: Enables an update that reduces the “disk footprint [of In-Memory OLTP] by reducing the In-Memory checkpoint files to 1 MB (megabytes) each.”
+Link: https://support.microsoft.com/help/3147012/ + + + +#### Trace Flag: 9939 +Function: Disables merge/recompress during columnstore index reorganization. +In SQL Server 2016, when a columnstore index is reorganized, there is new functionality to automatically merge any small compressed rowgroups into larger compressed rowgroups, as well as recompressing any rowgroups that have a large number of deleted rows.
+**Note: Trace flag 10204 does not apply to columnstore indexes which are created on memory-optimized tables.**
+Link: [Docs Trace Flags]
+Link: [Parallelism in Hekaton (In-Memory OLTP)] +Scope: global or session + + + +#### Trace Flag: 9989 +Function: In CTP2, enabled functionality for reading in-memory tables on a readable secondary
+Link: https://connect.microsoft.com/SQLServer/feedback/details/795360/secondary-db-gets-suspect-when-i-add-in-memory-table-to-db-which-is-part-of-alwayson-availability-group + + + +#### Trace Flag: 10202 +**Undocumented trace flag**
+Function: According to demo scripts from a Sunil Agarwal session at PASS 2014, enables a new DMV named sys.dm_db_column_store_row_group_physical_stats. +This DMV is not in SQL 2014 RTM and Sunil did not perform this demo during the session, so this DMV appears to be in a future (or internal) version of SQL Server.
+Link: None + + + +#### Trace Flag: 10204 +Function: Disables merge/recompress during columnstore index reorganization. +In SQL Server 2016, when a columnstore index is reorganized, there is new functionality to automatically merge any small compressed rowgroups +into larger compressed rowgroups, as well as recompressing any rowgroups that have a large number of deleted rows.
+**Note: Trace flag 10204 does not apply to column store indexes which are created on memory-optimized tables.**
+Link: [Docs Trace Flags]
+Scope: global or session + + + +#### Trace Flag: 10207 +Function: When a Clustered Columnstore index has corrupted segments, turning on this flag suppresses errors 5288 and 5289 and allows a scan of a clustered columns store to skip corrupt segments and complete (though with results that do not include the corrupted segment(s)). This flag is helpful when attempting to copy-out data in a corrupt CCI.
+Link: https://support.microsoft.com/help/3067257/
+Link: https://blogs.msdn.microsoft.com/sqlreleaseservices/partial-results-in-a-query-of-a-clustered-columnstore-index-in-sql-server-2014 + + + +#### Trace Flag: 10213 +**Undocumented trace flag**
+Function: Enables the option to configure compression delay in columnstore indexes in SQL Server 2016
+Link: http://www.nikoport.com/2016/02/04/columnstore-indexes-part-76-compression-delay/
+Scope: session only + + + +#### Trace Flag: 10264 +**Undocumented trace flag**
+Function: Polybase mode enabled for SqlComposable.
+Link: [Bad Idea Jeans: Finding Undocumented Trace Flags] + + + +#### Trace Flag: 10316 +Function: Enables creation of additional indexes on internal memory-optimized staging temporal table, beside the default one. +If you have specific query pattern that includes columns which are not covered by the default index you may consider adding additional ones.
+**Note: System-versioned temporal tables for Memory-Optimized Tables are designed to provide high transactional throughput. +Please be aware that creating additional indexes may introduce overhead for DML operations that update or delete rows in the current table. +With the additional indexes you should aim to find the right balance between performance of temporal queries and additional DML overhead.**
+Link: [Docs Trace Flags]
+Link: https://support.microsoft.com/help/3198846
+Link: https://blogs.msdn.microsoft.com/sqlcat/2016/12/08/improve-query-performance-on-memory-optimized-tables-with-temporal-using-new-index-creation-enhancement-in-sp1/
+Scope: global or session + + + +#### Trace Flag: 10809 +**Undocumented trace flag**
+Function: Force stream Aggregates for scalar aggregation in batch mode.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 11001 +**Undocumented trace flag**
+Function: Results in a different join order for some queries. Full effect unknown.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + + +#### Trace Flag: 11023 +Function: Disables the use of the last persisted sample rate, for all subsequent statistics update where a sample rate is not specified explicitly as part of the [UPDATE STATISTICS](https://docs.microsoft.com/en-us/sql/t-sql/statements/update-statistics-transact-sql) statement.
+Link: https://support.microsoft.com/help/4039284
+Link: [Docs Trace Flags]
+Scope: global or session + + + +#### Trace Flag: 11024 +Function: In Microsoft SQL Server 2017, when incremental statistics are built on the top of partitioned tables, the sum of modification counts of all partitions is stored as the modification count of the root node. +When the modification count of the root node exceeds a threshold, the auto update of statistics is triggered. +However, if the modification count of any single partition does not exceed the local threshold, the statistics are not updated. +Additionally, the modification count of the root node is reset to zero. This may cause delay in the auto update of incremental statistics. +When trace flag 11024 is enabled, the modification count of the root node is kept as the sum of modification counts of all partitions.
+**Note: This trace flag applies to SQL Server 2017 CU3 and higher builds.**
+Link: https://support.microsoft.com/help/4041811
+Scope: global or session + + + +#### Trace Flag: 11029 **Undocumented trace flag**
-Function: Activate the trace flag before creating a natively compiled procedure. If you now open up the SQL Server error log you should see the compilation process for the natively compiled procedure. This is an undocumented trace flag so please don’t use this on a production system.
-Link: http://speedysql.com/2015/10/28/new-trace-flag-for-in-memory-oltp-hekaton/#more-1216 +Function: Prevents new information about row goals from getting logged to the plan cache.
+Link: [New Undocumented Trace Flags]
+Scope: ? + + +[Docs Trace Flags]:https://docs.microsoft.com/sql/t-sql/database-console-commands/dbcc-traceon-trace-flags-transact-sql +[Query Store Trace Flags]: https://www.sqlskills.com/blogs/erin/query-store-trace-flags/ +[DBCC TRACEON]:https://docs.microsoft.com/sql/t-sql/database-console-commands/dbcc-traceon-transact-sql +[DBCC TRACEOFF]:https://docs.microsoft.com/sql/t-sql/database-console-commands/dbcc-traceoff-transact-sql +[DBCC CHECKDB]: https://docs.microsoft.com/sql/t-sql/database-console-commands/dbcc-checkdb-transact-sql +[DBCC CHECKTABLE]: https://docs.microsoft.com/sql/t-sql/database-console-commands/dbcc-checktable-transact-sql +[DBCC CHECKCONSTRAINTS]: https://docs.microsoft.com/sql/t-sql/database-console-commands/dbcc-checkconstraints-transact-sql +[Niko Neugebauer Columnstore Indexes – part 86]: http://www.nikoport.com/2016/07/29/columnstore-indexes-part-86-new-trace-flags-in-sql-server-2016/ +[Niko Neugebauer Columnstore Indexes – part 35]: http://www.nikoport.com/2014/07/24/clustered-columnstore-indexes-part-35-trace-flags-query-optimiser-rules/ +[Microsoft SQL Server 2005 TPC-C Trace Flags]: http://webcache.googleusercontent.com/search?q=cache:Nttlt2Dp8egJ:blogs.msmvps.com/gladchenko/2009/08/21/sql_trace_flags_tpc-c/+&cd=6&hl=en&ct=clnk&gl=ru +[Trace Flag 1228 and 1229]: http://www.sqlservercentral.com/Forums/Topic741825-146-1.aspx +[A Topical Collection of SQL Server Flags v6]: https://sqlcrossjoin.files.wordpress.com/2016/04/sqlcrossjoin_traceflagrepository_v6.pdf +[How To Diagnose and Correct Errors 17883, 17884, 17887, and 17888]: https://msdn.microsoft.com/library/cc917684.aspx +[Trace flags in sql server from trace flag 902 to trace flag 1462]: http://www.sqlserverf1.com/tag/sql-server-trace-flag-1448/ +[TECHNET List Of SQL Server Trace Flags]: http://social.technet.microsoft.com/wiki/contents/articles/13105.trace-flags-in-sql-server.aspx +[Cardinality Estimation Framework 2014 First Look]: http://www.somewheresomehow.ru/cardinality-estimation-framework-2014-first-look/ +[Query Optimizer Deep Dive - Part 4]: http://sqlblog.com/blogs/paul_white/archive/2012/05/01/query-optimizer-deep-dive-part-4.aspx +[KB920093]: https://support.microsoft.com/help/920093 +[KB972767]: https://support.microsoft.com/help/972767 +[Tune compression for availability group]: https://docs.microsoft.com/sql/database-engine/availability-groups/windows/tune-compression-for-availability-group +[More Undocumented Query Optimizer Trace Flags]: http://www.benjaminnevarez.com/2012/04/more-undocumented-query-optimizer-trace-flags/ +[KB3107399]: https://support.microsoft.com/help/3107399 +[KB2801413]: https://support.microsoft.com/help/2801413 +[New Features in SQL Server 2016 Service Pack 1]: https://www.mssqltips.com/sqlservertip/4574/new-features-in-sql-server-2016-service-pack-1/ +[Internals of the Seven SQL Server Sorts – Part 1]: https://sqlperformance.com/2015/04/sql-plan/internals-of-the-seven-sql-server-sorts-part-1 +[Yet another X-Ray for the QP]: http://www.queryprocessor.com/tf_8628/ +[How It Works: SQL Server 2012 Database Engine Task Scheduling]: https://blogs.msdn.microsoft.com/psssql/2013/08/13/how-it-works-sql-server-2012-database-engine-task-scheduling/ +[What You Need to Know about the Batch Mode Window Aggregate Operator in SQL Server 2016: Part 1]: http://sqlmag.com/sql-server/what-you-need-know-about-batch-mode-window-aggregate-operator-sql-server-2016-part-1 +[SQL Server 2016 : Getting tempdb a little more right]: https://blogs.sentryone.com/aaronbertrand/sql-server-2016-tempdb-fixes/ +[Importance of Performing DBCC CHECKDB on all SQL Server Databases]: https://www.mssqltips.com/sqlservertip/4581/importance-of-performing-dbcc-checkdb-on-all-sql-server-databases/ +[SQL Server Parallel Query Placement Decision Logic]: https://blogs.msdn.microsoft.com/psssql/2016/03/04/sql-server-parallel-query-placement-decision-logic/ +[compatibility level]: https://docs.microsoft.com/sql/t-sql/statements/alter-database-transact-sql-compatibility-level +[Bad Idea Jeans: Finding Undocumented Trace Flags]: https://www.brentozar.com/archive/2017/10/bad-idea-jeans-finding-undocumented-trace-flags/ +[SQL Server - estimates outside of the histogram - half-baked draft]: http://sql-sasquatch.blogspot.ru/2017/09/sql-server-estimates-outside-of.html +[Upgrading an expired SQL Server 2016 Evaluation Edition]: https://www.codykonior.com/2017/11/30/upgrading-an-expired-sql-server-2016-evaluation-edition/ +[How to Find the Statistics Used to Compile an Execution Plan]: http://sqlblog.com/blogs/paul_white/archive/2011/09/21/how-to-find-the-statistics-used-to-compile-an-paul_white +[New Undocumented Trace Flags]: https://orderbyselectnull.com/2018/01/09/45-new-trace-flags/ +[Statistics and Cardinality Estimation]: http://topicaltraceflags.readthedocs.io/en/latest/cat/qry_StatsAndEst.html +[Splitting Strings Based on Patterns]: https://www.sqlservercentral.com/Forums/Topic1390297-3122-5.aspx +[SQL Server 2017: Adaptive Join Internals]: http://www.queryprocessor.com/adaptive-join-internals/ +[Parallelism in Hekaton (In-Memory OLTP)]: http://www.nikoport.com/2018/01/20/parallelism-in-hekaton-in-memory-oltp/ +[Hidden Performance & Manageability Improvements in SQL Server 2012 / 2014]: https://sqlperformance.com/2018/01/sql-performance/hidden-performance-manageability-improvements-sql-server-2012-2014 +[KB917825]: https://support.microsoft.com/help/917825/ +[TF6545-a]: https://support.microsoft.com/help/4018930/ +[TF6545-b]: https://SqlQuantumLeap.com/2018/02/23/sqlclr-vs-sql-server-2012-2014-2016-part-7-clr-strict-security-the-problem-continues-in-the-past-wait-what/ +[Controlling SQL Server memory dumps]: https://blogs.msdn.microsoft.com/psssql/2009/11/17/how-it-works-controlling-sql-server-memory-dumps +[Change SQL Server Collation – Back to Basics]:http://jasonbrimhall.info/2018/04/12/change-sql-server-collation/ +[Important Trace Flags That Every DBA Should Know]:http://victorisakov.files.wordpress.com/2011/10/sql_pass_summit_2011-important_trace_flags_that_every_dba_should_know-victor_isakov.pdf +[A Row Goal Riddle]:https://orderbyselectnull.com/2018/03/30/a-row-goal-riddle/ +[Undocumented Trace Flags: Inside the Restore Process]:https://blog.rdx.com/undocumented-trace-flags-inside-the-restore-process/ +[What’s CHECKDB doing in my database restore?]:http://www.mikefal.net/2018/04/10/whats-checkdb-doing-in-my-database-restore/ +[Few Outer Rows Optimization]:https://www.sqlshack.com/few-outer-rows-optimization/ +[TEMPDB – Files and Trace Flags and Updates]:https://blogs.msdn.microsoft.com/sql_server_team/tempdb-files-and-trace-flags-and-updates-oh-my/ +[Next-Level Parallel Plan Forcing: An Alternative to 8649]:http://dataeducation.com/next-level-parallel-plan-forcing-an-alternative-to-8649/ +[SQL Server 6.5: Some Useful Trace Flag]:http://www.databasejournal.com/features/mssql/article.php/1443351/SQL-Server-65-Some-Useful-Trace-Flags.htm +[DAC]:https://docs.microsoft.com/sql/database-engine/configure-windows/diagnostic-connection-for-database-administrators +[DBCC SHOW_STATISTICS]:https://docs.microsoft.com/sql/t-sql/database-console-commands/dbcc-show-statistics-transact-sql +[ALTER DATABASE SCOPED CONFIGURATION (Transact-SQL)]:https://docs.microsoft.com/sql/t-sql/statements/alter-database-scoped-configuration-transact-sql +[KB169960]:https://web.archive.org/web/20150111103047/http://support.microsoft.com:80/kb/169960 +[2628]:https://docs.microsoft.com/en-us/sql/relational-databases/errors-events/database-engine-events-and-errors?view=sql-server-2017#errors-2000-to-2999 +[8152]:https://docs.microsoft.com/en-us/sql/relational-databases/errors-events/database-engine-events-and-errors?view=sql-server-2017#errors-8000-to-8999 +[Fun with SQL Server Plan Cache, Trace Flag 8666, and Trace Flag 2388]:http://sql-sasquatch.blogspot.com/2018/12/fun-with-sql-server-plan-cache-trace_6.html diff --git a/SQL Server Version.md b/SQL Server Version.md index ad41ee43..9431c609 100644 --- a/SQL Server Version.md +++ b/SQL Server Version.md @@ -6,8 +6,12 @@ Headers: - [SQL Server Patching Shortcut](#sql-server-patching-shortcut) - [What are the most recent updates for SQL Server?](#what-are-the-most-recent-updates-for-sql-server) - [Microsoft SQL Server installation files info](#microsoft-sql-server-installation-files-info) + - [SQL Server Developer Edition Info](#sql-server-developer-edition-info) + - [SQL Server Express direct download links](#sql-server-express-direct-download-links) - [Internal Database Version and Compatibility Level](#internal-database-version-and-compatibility-level) - [Quick summary for SQL Server Service Packs](#quick-summary-for-sql-server-service-packs) + - [Microsoft SQL Server 2019 Builds](#microsoft-sql-server-2019-builds) + - [Microsoft SQL Server 2017 Builds](#microsoft-sql-server-2017-builds) - [Microsoft SQL Server 2016 Builds](#microsoft-sql-server-2016-builds) - [Microsoft SQL Server 2014 Builds](#microsoft-sql-server-2014-builds) - [Microsoft SQL Server 2012 Builds](#microsoft-sql-server-2012-builds) @@ -19,18 +23,28 @@ Headers: - [Microsoft SQL Server 6.5 Builds](#microsoft-sql-server-65-builds) - [Microsoft SQL Server 6.0 Builds](#microsoft-sql-server-60-builds) -Source link: - - **Awesome official Microsoft article** - How to determine the version, edition and update level of SQL Server and its components: [KB321185](https://support.microsoft.com/en-us/kb/321185) - - Naming schema for Microsoft SQL Server software update packages: [KB822499](https://support.microsoft.com/en-us/kb/822499) - - Description of the standard terminology that is used to describe Microsoft software updates: [KB824684](https://support.microsoft.com/en-us/kb/824684) - - An Incremental Servicing Model is available from the SQL Server team to deliver hotfixes for reported problems: [KB935897](https://support.microsoft.com/en-us/kb/935897) - - Recommended updates and configuration options for SQL Server 2012 and SQL Server 2014 with high-performance workloads: [KB2964518](https://support.microsoft.com/en-us/kb/2964518) +Useful links: + - [KB321185 How to determine the version, edition and update level of SQL Server and its components](https://support.microsoft.com/help/321185) + - [KB822499 Naming schema for Microsoft SQL Server software update packages](https://support.microsoft.com/help/822499) + - [Microsoft SQL Server Support Lifecycle](https://support.microsoft.com/en-us/lifecycle?x=5&y=11&c2=1044) + - [Microsoft Update Catalog](http://www.catalog.update.microsoft.com) + - [SQL Server packages for Linux](https://packages.microsoft.com/) + - [Release notes for SQL Server 2017 on Linux](https://docs.microsoft.com/en-us/sql/linux/sql-server-linux-release-notes?view=sql-server-linux-2017) + - [KB824684 Description of the standard terminology that is used to describe Microsoft software updates](https://support.microsoft.com/help/824684) + - [KB935897 An Incremental Servicing Model is available from the SQL Server team to deliver hotfixes for reported problems](https://support.microsoft.com/help/935897) + - [KB2964518 Recommended updates and configuration options for SQL Server 2012 and SQL Server 2014 with high-performance workloads](https://support.microsoft.com/help/2964518) + - [Azure SQL Server Updates](https://azure.microsoft.com/en-us/updates/?product=sql-database&update-type=general-availability) + - [Most Recent KBs for Microsoft SQL Server RSS](https://support.microsoft.com/en-us/rss?rssid=1044) - [Testing and Developing Supportability Roadmaps for ISV Applications (PDF)](http://blogs.technet.com/cfs-file.ashx/__key/communityserver-blogs-components-weblogfiles/00-00-00-85-48-files/0827.testing-and-developing-supportability-roadmaps-for-isv-applications.pdf) - [SQL Server Updates by Brent Ozar team](http://sqlserverupdates.com/) + - [Which Version of SQL Server Should You Use?](https://www.brentozar.com/archive/2019/01/which-version-of-sql-server-should-you-use/) - [SQL Server Builds by SQLSentry](http://blogs.sqlsentry.com/category/sql-server-builds/) + - [SQL Server Release Services](https://blogs.msdn.microsoft.com/sqlreleaseservices/) - [Why I have high hopes for the quality of SQL Server 2016 release by Remus Rusanu](https://medium.com/@rusanu/why-i-have-high-hopes-for-the-quality-of-sql-server-2016-release-6173bc1fbc82#.44kg2ktmg) - [Unofficial SQL Server build chart lists](http://sqlserverbuilds.blogspot.ru/) - - [Wikipedia Microsoft_SQL_Server](https://en.wikipedia.org/wiki/Microsoft_SQL_Server) + - [Unofficial SQL Server build chart lists in table representation](http://sqlbuilds.ekelmans.com/) + - [Hardware and Software Requirements for Installing SQL Server](https://msdn.microsoft.com/en-us//library/ms143506.aspx) + - [Wikipedia Microsoft SQL Server](https://en.wikipedia.org/wiki/Microsoft_SQL_Server) - [SQL Server 2005 Downloads](https://msdn.microsoft.com/en-us/sqlserver/bb671254.aspx) - [SQL Server 2000 Downloads](https://msdn.microsoft.com/en-us/sqlserver/bb895925) - [SQL Server 7.0 Downloads](https://msdn.microsoft.com/en-us/sqlserver/bb671066) @@ -38,30 +52,29 @@ Source link: Useful articles: - [How to identify your SQL Server version and edition](http://support.microsoft.com/kb/321185/en-us) - [SQL Server Internal Database Versions](http://sqlserverbuilds.blogspot.ru/2014/01/sql-server-internal-database-versions.html) - - [Microsoft SQL Server Support Lifecycle](http://support2.microsoft.com/lifecycle/?LN=en-us&c2=1044) + - [Microsoft SQL Server Support Lifecycle](https://support.microsoft.com/en-us/lifecycle/) - [Microsoft SQL Server Home](http://www.microsoft.com/sql) - [Microsoft SQL Server Developer Center](http://msdn.microsoft.com/sqlserver) - [Microsoft TechNet: Microsoft SQL Server](http://technet.microsoft.com/en-us/sqlserver) - - [Microsoft Knowledge Base](http://kbupdate.info/) - - [Sqlservr.exe versions](http://www.mskbfiles.com/sqlservr.exe.php) - [SQL Server Patching Shortcut](http://www.sqlservercentral.com/articles/SQL+Server+patching/138693/) -**All SQL Server service packs are cumulative, meaning that each new service pack contains all the fixes that are included with previous service packs and any new fixes.** +**All SQL Server service packs and Cumulative Updates are cumulative, meaning that each new service pack and cumulative update contains all the fixes that are included with previous service packs and any new fixes.** -## Frequently used terms and acronyms +## Frequently used terms and acronyms + **Great thanks to Aaron Bertrand for awesome article**: [Definitions of SQL Server release acronyms](http://blogs.sqlsentry.com/aaronbertrand/back-to-basics-release-acronyms/) - **COD** *Critical On-Demand*: This is a fix for an issue that is deemed "critical" because of the severity of the issue, the number of customers it affects, or the lack of a feasible workaround (usually a combination of two or all three). The fix is released out-of-band from the usual Cumulative Update / Service Pack release cycle, and then rolled into the next Cumulative Update (or, depending on timing, the one after that). A COD can sometimes contain more than one QFE (defined below). - - **CU** *Cumulative Update*: This is a roll-up of multiple fixes that occurs between Service Packs, usually on a 60-day cycle (though that is subject to change). + - **CU** *Cumulative Update*: This is a roll-up of multiple fixes that occurs between Service Packs, usually on a 60-day cycle (though that is subject to change). It used to require an e-mail and password to download and extract the files, because they were "less tested" than service packs, but [this is no longer the case](https://blogs.msdn.microsoft.com/sqlreleaseservices/announcing-updates-to-the-sql-server-incremental-servicing-model-ism/). Functionality can also be added in Cumulative Updates (previously, this would only happen in Service Packs, and before that, only in major releases). Kendra Little just published [a fantastic blog post about this](http://www.littlekendra.com/2016/04/28/required-testing-for-installing-sql-server-cumulative-updates-and-service-packs/). You should feel comfortable applying Cumulative Updates as quickly as your regression and other test processes allow. - - **CTP** *Community Technology Preview*: This is a build of the "next" version of SQL Server (or sometimes a Service Pack) that can be used for testing new features and reporting bugs. + - **CTP** *Community Technology Preview*: This is a build of the "next" version of SQL Server (or sometimes a Service Pack) that can be used for testing new features and reporting bugs. With few exceptions, CTPs cannot be used in a production scenario, and they are usually limited to Express / Evaluation Editions. - **GA** *General Availability*: For the traditional SQL Server product, this usually means that you can download the ISO from the usual sources (MSDN downloads, the TechNet Evaluation Center, or your volume licensing servers). For Azure SQL Database, this usually means that you can go and turn on the functionality without first agreeing to a waiver about preview functionality. @@ -76,12 +89,12 @@ These are almost always a subset of TAP, and are almost always running the new v - **RTM** *Released To Manufacturing*: This means that the release is ready. Back when Microsoft shipped software on CDs and later DVDs, this represented the point in time when the discs could be printed. Not to be confused with launch (which is a marketing thing only) or General Availability (which means you can actually get the code). The delay between RTM and GA is much shorter now that software is generally distributed online instead of on physical media. - - **RTW** *Release to Web*: It indicates a package that was released to the web and made available to customers for downloading. + - **RTW** *Release to Web*: It indicates a package that was released to the web and made available to customers for downloading. - **TAP** *Technology Adoption Program*: This describes a set of customers that help Microsoft shape and test specific features for a new release (or help shape and test new features individually). - **SP** *Service Pack*: A Service Pack is, now, essentially a Cumulative Update with slightly different labeling. It is a roll-up of updates (including bug fixes and security updates) and sometimes contains new features. Like Cumulative Updates, Service Packs are cumulative. If you are applying SP3, you do not need to first deploy SP1 and SP2. - - **SU**: Security update. + - **SU** or **CVE**: Security update. - **Hotfix**: A single, cumulative package that includes one or more files that are used to address a problem in a product and are cumulative at the binary and file level. A hotfix addresses a specific customer situation and may not be distributed outside the customers organization. ### References @@ -94,52 +107,62 @@ Like Cumulative Updates, Service Packs are cumulative. If you are applying SP3, - [What is Microsoft TAP and RDP?](http://www.jamesserra.com/archive/2011/10/what-is-microsoft-tap-and-rdp/) -## SQL Server Patching Shortcut +## SQL Server Patching Shortcut + Step 1. After the CU file has been downloaded, open a DOS prompt and launch it with the /extract option with a path of your choice appended to this option. For example: ```bat -SQLServer2014-KB3130926-x64.exe /extract C:\CU5 +SQLServer2017-KB4052574-x64.exe /extract C:\SQL2017CU2 ``` After a few moments you should see the progress bar dialog pop up. The target directory will be created if it does not exist, so this is also a great option for automating patch installs. -That's all there is to it. No step 2 required. The patch has been extracted to a location of your choice, which means there's one less thing to worry about when it's time to carry out the actual patching. +No step 2 required. The patch has been extracted to a location of your choice, which means there's one less thing to worry about when it's time to carry out the actual patching. Profits: - This saves time as the install files can be extracted in advance, and if you have to patch a lot of servers this saving is multiplied as the files are extracted once, instead of every time on every server. - - This time saving also serves to reduces risk as it is one less thing that could go wrong during patching. The last thing you want to be doing during a patching window is scrambling around on a server clearing space in temp folders because there was not enough space free on e.g. the C: drive for the patch to extract itself. We've all been there. + - This time saving also serves to reduces risk as it is one less thing that could go wrong during patching. The last thing you want to be doing during a patching window is scrambling around on a server clearing space in temp folders because there was not enough space free on e.g. the C: drive for the patch to extract itself. - This is also a great way of retrieving just an individual msi file (e.g. sqlncli.msi) -## What are the most recent updates for SQL Server? - -| Version | Latest Update | Build Number | Release Date | Support Ends | Other Updates | -|---------|--------------------------------------------------------------------|------------------------------------------------|------------------------------------------|--------------|-------------------------------------------------------------------| -| 2016 | [Download RC3 2016] | 13.0.1400.371 | 2016-04-15 | ? | [Other SQL 2016 Updates](#microsoft-sql-server-2016-builds) | -| 2014 | [Download 2014 SP1] then
[CU6 KB3144524] | 12.0.4100.1
12.0.4449.0 | 2015-05-15
2016-04-18 | 2024-07-09 | [Other SQL 2014 Updates](#microsoft-sql-server-2014-builds) | -| 2012 | [Download 2012] then
[SP3 2012] then
[CU3 KB3152635] | 11.0.2100.60
11.0.6020.0
11.0.6537.0 | 2012-02-14
2015-11-21
2016-05-16 | 2022-07-12 | [Other SQL 2012 Updates](#microsoft-sql-server-2012-builds) | -| 2008 R2 | [Download 2008 R2] then
[SP3 2008 R2] then
[SU KB3045311] | 6.1.7601.17514
10.50.6000
10.50.6220.0 | 2010-11-21
2014-09-30
2015-07-14 | 2019-07-09 | [Other SQL 2008 R2 Updates](#microsoft-sql-server-2008-r2-builds) | -| 2008 | [Download 2008] then
[SP4 2008] then
[SU KB3045316] | 6.0.6001.18000
10.00.6000
10.0.6241.0 | 2008-01-19
2014-09-30
2015-07-14 | 2019-07-09 | [Other SQL 2008 Updates](#microsoft-sql-server-2008-builds) | -| 2005 | [Download SP4 2005] then
[CU3 KB2507769] | 9.00.5000.00
9.00.5266 | 2010-12-17
2011-03-17 | 2016-04-12 | [Other SQL 2005 Updates](#microsoft-sql-server-2005-builds) | - -[Download RC3 2016]:https://www.microsoft.com/en-in/evalcenter/evaluate-sql-server-2016 -[Download 2014 SP1]:https://www.microsoft.com/en-us/evalcenter/evaluate-sql-server-2014 -[CU6 KB3144524]:https://support.microsoft.com/en-us/kb/3144524 -[Download 2012]:https://www.microsoft.com/en-us/evalcenter/evaluate-sql-server-2012 -[SP3 2012]:http://www.microsoft.com/en-us/download/details.aspx?id=49996 -[CU3 KB3152635]:https://support.microsoft.com/en-us/kb/3152635 +## What are the most recent updates for SQL Server? + + +| Version | Latest Update | Build Number | Release Date | Lifecycle Start | Mainstream Support | Extended Support | Other Updates | +|---------|-----------------------------------------------------------------------|----------------------------------------------|------------------------------------------|-----------------|--------------------|------------------|-------------------------------------------------------------------| +| 2019 | [Install 2019 CTP 2.2] | 15.0.1200.24 | 2018-12-11 | ? | ? | ? | [Other SQL 2019 Updates](#microsoft-sql-server-2019-builds) | +| 2017 | [Install 2017 RTM] then [CU13 KB4483666] | 14.0.1000.169
14.0.3049.1 | 2017-10-02
2019-01-08 | 2017-08-28 | 2022-11-10 | 2027-12-10 | [Other SQL 2017 Updates](#microsoft-sql-server-2017-builds) | +| 2016 | [Install 2016 SP2] then [CU5 KB4475776] | 13.0.5026.0
13.0.5264.1 | 2018-04-24
2019-01-23 | 2016-11-16 | 2021-07-13 | 2026-07-14 | [Other SQL 2016 Updates](#microsoft-sql-server-2016-builds) | +| 2014 | [Install 2014 SP2] then
[SP3 KB4022619] then
[CU1 KB4470220] | 12.0.5000.0
12.0.6024.0
12.0.6205.1 | 2016-07-11
2018-10-30
2018-12-12 | 2016-07-14 | 2019-07-09 | 2024-07-09 | [Other SQL 2014 Updates](#microsoft-sql-server-2014-builds) | +| 2012 | [Install 2012] then
[SP4 2012] then
[ADV180002 (GDR)] | 11.0.2100.60
11.0.7001.0
11.0.7462.6 | 2012-02-14
2017-10-05
2018-01-12 | 2015-12-01 | 2017-07-11 | 2022-07-12 | [Other SQL 2012 Updates](#microsoft-sql-server-2012-builds) | +| 2008 R2 | [Install 2008 R2] then
[SP3 2008 R2] then
[SU KB3045311] | 10.50.1600
10.50.6000
10.50.6220.0 | 2010-11-21
2014-09-30
2015-07-14 | Review Note | 2014-07-08 | 2019-07-09 | [Other SQL 2008 R2 Updates](#microsoft-sql-server-2008-r2-builds) | +| 2008 | [Install 2008] then
[SP4 2008] then
[SU KB3045316] | 10.0.1600.0
10.0.6000
10.0.6241.0 | 2008-01-19
2014-09-30
2015-07-14 | 2014-07-07 | 2014-07-08 | 2019-07-09 | [Other SQL 2008 Updates](#microsoft-sql-server-2008-builds) | + +**For downloading distributive for SQL Server 2008 R2 and SQL Server 2008 you must have MSDN subscription, see [Install 2008 R2] and [Install 2008] links.** + +[Install 2019 CTP 2.2]:https://www.microsoft.com/en-us/sql-server/sql-server-2019#Install +[Install 2017 RTM]:https://www.microsoft.com/en-us/sql-server/sql-server-downloads +[CU13 KB4483666]:https://support.microsoft.com/help/4483666 +[Install 2016 SP2]:https://go.microsoft.com/fwlink/?LinkID=799011 +[CU5 KB4475776]:https://support.microsoft.com/help/4475776 +[Install 2014 SP2]:https://www.microsoft.com/evalcenter/evaluate-sql-server-2014-sp2 +[SP3 KB4022619]:https://support.microsoft.com/help/4022619 +[CU1 KB4470220]:https://support.microsoft.com/help/4470220 +[Install 2012]:https://www.microsoft.com/en-us/evalcenter/evaluate-sql-server-2012 +[SP4 2012]:https://support.microsoft.com/en-us/help/4018073 +[ADV180002 (GDR)]:https://support.microsoft.com/en-us/help/4057116 [CU9 KB3098512]:https://support.microsoft.com/en-us/kb/3098512 -[Download 2008 R2]:https://www.microsoft.com/en-us/download/details.aspx?id=11093 +[Install 2008 R2]:https://msdn.microsoft.com/subscriptions/securedownloads/#searchTerm=sql%20server%202008%20r2&ProductFamilyId=0&Languages=en&FileExtensions=.iso&PageSize=10&PageIndex=0&FileId=0 [SP3 2008 R2]:http://www.microsoft.com/en-us/download/details.aspx?id=44271 [SU KB3045311]:https://www.microsoft.com/downloads/details.aspx?familyid=7af16cb8-c944-41cb-a897-c6fc373869cd -[Download 2008]:https://www.microsoft.com/en-us/download/details.aspx?id=5023 +[Install 2008]:https://msdn.microsoft.com/subscriptions/securedownloads/#searchTerm=sql%20server%202008&ProductFamilyId=0&Languages=en&FileExtensions=.iso&PageSize=10&PageIndex=0&FileId=0 [SP4 2008]:http://www.microsoft.com/en-us/download/details.aspx?id=44278 -[SU KB3045316]:https://www.microsoft.com/downloads/details.aspx?familyid=40328565-3067-4e36-96ba-26ade333d715 -[Download SP4 2005]:http://www.microsoft.com/downloads/en/details.aspx?FamilyID=b953e84f-9307-405e-bceb-47bd345baece -[CU3 KB2507769]:http://support.microsoft.com/kb/2507769 +[SU KB3045316]:https://support.microsoft.com/help/3045311 +[Developer Free]:https://www.microsoft.com/en-us/cloud-platform/sql-server-editions-developers -## Microsoft SQL Server installation files info -SHA1 hash you can easy get with default Windows utility [certutil](https://technet.microsoft.com/en-us/library/cc732443.aspx 'certutil TECHNET description'). +## Microsoft SQL Server installation files info + +SHA1 hash you can easy get with default Windows utility [certutil](https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/certutil 'certutil Microsoft docs'). For example, for single file: ```bat @@ -148,31 +171,46 @@ certUtil -hashfile "d:\SQL Server\SQLServer2014SP1-KB3058865-x64-ENU.exe" sha1 Or for all files with .exe extensions in folder: ```bat -FOR /R "d:\YaDsik\Backup\Distrib\SQL Server" %I IN (*.exe) DO certUtil -hashfile "%I" sha1 +FOR /R "d:\SQL Server" %I IN (*.exe) DO certUtil -hashfile "%I" sha1 ``` -| Direct x64 Download Link | File Name | Release Date | Build Number | Size, MB | SHA1 | -|--------------------------|----------------------------------------------------------------------|--------------| --------------:|---------:|-------------------------------------------------------------| -| [SQL Server 2016 RC3] | SQLServer2016RC3-x64-ENU.iso | 2016-04-15 | 13.0.1400.371 | 2114 MB | 10 f3 5f 9d 34 2a fd 27 b9 1a bf 19 97 9c b2 12 16 b9 f6 ba | -| [SQL Server 2014 SP1] | SQLServer2014SP1-FullSlipstream-x64-ENU.iso | 2015-05-15 | 12.0.4100.1 | 3035 MB | 9e d2 f6 40 d7 3b 78 ed 51 20 f6 9a ba b4 9b ec ff 5b 00 60 | -| [SQL Server 2014 CU6] | SQLServer2014-KB3144524-x64.exe | 2016-04-18 | 12.0.4449.0 | 579 MB | ce f2 d9 6c 25 da b1 cb 2e 8c ee c7 ac c6 7b 0b c8 3b 0a 9a | -| [SQL Server 2012] | SQLFULL_ENU.iso | 2012-02-14 | 11.0.2100.60 | 4300 MB | be 00 94 2c c5 6d 03 3e 2c 9d ce 8a 17 a6 f2 65 4f 51 84 a3 | -| [SQL Server 2012 SP3] | SQLServer2012SP3-KB3072779-x64-ENU.exe | 2015-11-21 | 11.0.6020.0 | 1017 MB | db f0 1b 6d c6 d6 0c 2b 04 5c 92 d9 18 62 e6 08 7a d7 2a 0a | -| [SQL Server 2012 CU3] | SQLServer2012-KB3152635-x64.exe | 2016-05-16 | 11.0.6537.0 | 580 MB | 95 ae a9 84 29 08 d9 cd 83 d1 d6 f9 e0 42 7e 80 66 9d 52 8f | -| [SQL Server 2008 R2] | 7601.17514.101119-1850_x64fre_server_eval_en-us-GRMSXEVAL_EN_DVD.iso | 2010-11-21 | 6.1.7601.17514 | 3020 MB | e1 f1 12 e3 b0 b3 03 a0 67 6f 70 dc 35 85 4b d7 6c d2 54 50 | -| [SQL Server 2008 R2 SP3] | SQLServer2008R2SP3-KB2979597-x64-ENU.exe | 2014-09-30 | 10.50.6220.0 | 358 MB | 19 4c d7 40 d5 81 2b 12 63 9b 47 88 6e bd e0 d0 47 74 b4 ec | -| [SQL Server 2008 R2 SU] | SQLServer2008R2-KB3045316-x64.exe | 2015-07-14 | 10.50.6000 | 58 MB | 3a a4 d8 20 55 3b 1e 5d 96 73 55 41 cb b5 5d 97 32 2c 28 6e | -| [SQL Server 2008] | 6001.18000.080118-1840_amd64fre_Server_en-us-KRMSXFRE_EN_DVD.exe | 2008-01-19 | 6.0.6001.18000 | 2269 MB | e4 d6 29 00 0f c2 3d a9 f9 e0 77 4b 79 69 80 ff 7f 71 f7 48 | -| [SQL Server 2008 SP4] | SQLServer2008SP4-KB2979596-x64-ENU.exe | 2014-09-30 | 10.0.6241.0 | 378 MB | 13 61 0d 6c b3 9e 37 fc d4 a3 33 82 44 a3 ca 2a 8a 40 4c d8 | -| [SQL Server 2008 SU] | SQLServer2008-KB3045311-x64.exe | 2015-07-14 | 10.00.6000 | 61 MB | 37 a1 97 c6 09 90 d2 e8 3e 98 d1 09 01 09 a4 ab 3f 2a be 4b | - -[SQL Server 2016 RC3]:http://care.dlservice.microsoft.com/dl/download/E/0/0/E0088C51-F792-4772-B0BF-107DD472E245/SQLServer2016RC2-x64-ENU.iso -[SQL Server 2014 SP1]:http://care.dlservice.microsoft.com/dl/download/2/F/8/2F8F7165-BB21-4D1E-B5D8-3BD3CE73C77D/SQLServer2014SP1-FullSlipstream-x64-ENU.iso -[SQL Server 2014 CU6]:https://download.microsoft.com/download/9/5/3/953C5CEC-69F1-4B43-8226-44504C55199D/SQL14SP1CU6/x64/SQLServer2014-KB3144524-x64.exe +Alternative download link for all English x64 distributives: https://rebrand.ly/sql-server-distribs + +| Direct x64 Download Link | File Name | Release Date | Build Number | Size, MB | SHA1 | +|---------------------------------------|-------------------------------------------------------------------|--------------|--------------:|---------:|------------------------------------------| +| [SQL Server 2019] | SQLServer-2019-CTP-2.2-x64-ENU.iso | 2018-12-11 | 15.0.1200.24 | 1302 | 5b54d0ef478d422766b19fe2e1f99ee7d9bdf6e2 | +| [SQL Server 2017] | SQLServer2017-x64-ENU-Dev.iso | 2017-10-02 | 14.0.1000.169 | 1476 | 0280ff6c1447d287a6bd3b86b81e459fe252d17a | +| [SQL Server 2017 CU13 Hotfix] | SQLServer2017-KB4483666-x64 | 2019-01-08 | 14.0.3049.1 | 488 | 6f2de49e491048ab4cb17160d4efc653c3a29bf1 | +| [SQL Server 2016 SP2] | SQLServer2016SP1-KB3182545-x64-ENU.exe | 2018-04-24 | 13.0.5026.0 | 2832 | 6309d729a0f063d11c0bb7f840f1069483406755 | +| [SQL Server 2016 SP2 CU5] | SQLServer2016-KB4475776-x64.exe | 2019-01-23 | 13.0.5264.1 | 712 | 68af970cf5ffea7e549216b20dfa9fab4e2e6e8f | +| [SQL Server 2014 SP2] | SQLServer2014SP2-FullSlipstream-x64-ENU.iso | 2016-07-11 | 12.0.5000.0 | 3010 | 16f1934dc1f47994cd924439f884a05c6ad4d173 | +| [SQL Server 2014 SP3 KB4022619] | SQLServer2014SP3-KB4022619-x64-ENU.exe | 2018-10-30 | 12.0.6024.0 | 791 | a0959d84f72fd9f8a8832ca691efc420050df9de | +| [SQL Server 2014 SP3 CU1 KB4470220] | SQLServer2014-KB4470220-x64.exe | 2018-12-12 | 12.0.6205.1 | 601 | 727d462ffcb618400c813ae6bf06e3a9cc8418f2 | +| [SQL Server 2012] | SQLFULL_ENU.iso | 2012-02-14 | 11.0.2100.60 | 4300 | be00942cc56d033e2c9dce8a17a6f2654f5184a3 | +| [SQL Server 2012 SP4] | SQLServer2012SP4-KB4018073-x64-ENU.exe | 2017-10-05 | 11.0.7001.0 | 1024 | 95127ee2e8dfef180752e531a83cd948c24a3a87 | +| [SQL Server 2012 SP4 ADV180002 (GDR)] | SQLServer2012-KB4057116-x64.exe | 2018-01-12 | 11.0.7462.6 | 672 | c0c2e0e6519363a5bb3d3ca78d55ef664a8c8995 | +| SQL Server 2008 R2 RTM | SW_DVD9_SQL_Svr_Enterprise_Edtn_2008_R2_English_MLF_X16-29540.ISO | 2010-04-21 | 10.50.1600.1 | 4177 | 18105db70f0f0b23418f5005a6ce4b25317c6d03 | +| [SQL Server 2008 R2 SP3] | SQLServer2008R2SP3-KB2979597-x64-ENU.exe | 2014-09-30 | 10.50.6220.0 | 358 | 194cd740d5812b12639b47886ebde0d04774b4ec | +| [SQL Server 2008 R2 SU] | SQLServer2008R2-KB3045316-x64.exe | 2015-07-14 | 10.50.6000 | 58 | 3aa4d820553b1e5d96735541cbb55d97322c286e | +| [SQL Server 2008] | ? | 2008-01-19 | 10.0.1600.0 | ? | ? | +| [SQL Server 2008 SP4] | SQLServer2008SP4-KB2979596-x64-ENU.exe | 2014-09-30 | 10.0.6241.0 | 378 | 13610d6cb39e37fcd4a3338244a3ca2a8a404cd8 | +| [SQL Server 2008 SU] | SQLServer2008-KB3045311-x64.exe | 2015-07-14 | 10.00.6000 | 61 | 37a197c60990d2e83e98d1090109a4ab3f2abe4b | + +**For downloading distributive for SQL Server 2008 R2 and SQL Server 2008 you must have MSDN subscription, see [Install 2008 R2] and [Install 2008] links.** + +[SQL Server 2019]:https://go.microsoft.com/fwlink/?linkid=866664 +[SQL Server 2017]:https://go.microsoft.com/fwlink/?linkid=853016 +[SQL Server 2017 CU13 Hotfix]:http://download.microsoft.com/download/4/3/9/439277DD-1041-48F8-A5E5-FA6493E44BC5/SQLServer2017-KB4483666-x64.exe +[SQL Server 2016]:http://care.dlservice.microsoft.com/dl/download/F/E/9/FE9397FA-BFAB-4ADD-8B97-91234BC774B2/SQLServer2016-x64-ENU.iso +[SQL Server 2016 SP2]:https://go.microsoft.com/fwlink/?LinkID=799011 +[SQL Server 2016 SP2 CU5]:https://download.microsoft.com/download/6/0/6/606B3A2E-0EAE-4DCD-930D-178686370921/SQLServer2016-KB4475776-x64.exe +[SQL Server 2014 SP2]:http://care.dlservice.microsoft.com/dl/download/6/D/9/6D90C751-6FA3-4A78-A78E-D11E1C254700/SQLServer2014SP2-FullSlipstream-x64-ENU.iso +[SQL Server 2014 SP3 KB4022619]:https://download.microsoft.com/download/7/9/F/79F4584A-A957-436B-8534-3397F33790A6/SQLServer2014SP3-KB4022619-x64-ENU.exe +[SQL Server 2014 SP3 CU1 KB4470220]:https://download.microsoft.com/download/A/5/A/A5AACC94-29A5-4890-90BD-847320EE0E93/SQLServer2014-KB4470220-x64.exe [SQL Server 2012]:https://download.microsoft.com/download/4/C/7/4C7D40B9-BCF8-4F8A-9E76-06E9B92FE5AE/ENU/SQLFULL_ENU.iso -[SQL Server 2012 SP3]:https://download.microsoft.com/download/B/1/7/B17F8608-FA44-462D-A43B-00F94591540A/ENU/x64/SQLServer2012SP3-KB3072779-x64-ENU.exe -[SQL Server 2012 CU3]:https://download.microsoft.com/download/3/0/D/30D98783-31D6-4123-9F87-5058BA9FC977/SQL2012SP3CU3/amd64/SQLServer2012-KB3152635-x64.exe -[SQL Server 2008 R2]:https://download.microsoft.com/download/7/5/E/75EC4E54-5B02-42D6-8879-D8D3A25FBEF7/7601.17514.101119-1850_x64fre_server_eval_en-us-GRMSXEVAL_EN_DVD.iso +[SQL Server 2012 SP4]:https://download.microsoft.com/download/E/A/B/EABF1E75-54F0-42BB-B0EE-58E837B7A17F/SQLServer2012SP4-KB4018073-x64-ENU.exe +[SQL Server 2012 SP4 ADV180002 (GDR)]:https://download.microsoft.com/download/F/6/1/F618E667-BA6E-4428-A36A-8B4F5190FCC8/SQLServer2012-KB4057116-x64.exe +[SQL Server 2008 R2]:https://msdn.microsoft.com/subscriptions/securedownloads/#searchTerm=sql%20server%202008%20r2&ProductFamilyId=0&Languages=en&FileExtensions=.iso&PageSize=10&PageIndex=0&FileId=0 [SQL Server 2008 R2 SP3]:https://download.microsoft.com/download/D/7/A/D7A28B6C-FCFE-4F70-A902-B109388E01E9/ENU/SQLServer2008R2SP3-KB2979597-x64-ENU.exe [SQL Server 2008 R2 SU]:https://download.microsoft.com/download/4/D/A/4DAE6F9E-960E-4A59-BDE7-1D92DA508315/SQLServer2008R2-KB3045316-x64.exe [SQL Server 2008]:https://download.microsoft.com/download/D/D/B/DDB17DC1-A879-44DD-BD11-C0991D292AD7/6001.18000.080118-1840_amd64fre_Server_en-us-KRMSXFRE_EN_DVD.exe @@ -180,46 +218,214 @@ FOR /R "d:\YaDsik\Backup\Distrib\SQL Server" %I IN (*.exe) DO certUtil -hashfile [SQL Server 2008 SU]:https://download.microsoft.com/download/E/C/0/EC0A7C15-9A6D-4F41-9B9F-BCA10CC3937C/SQLServer2008-KB3045311-x64.exe -## Internal Database Version and Compatibility Level - -| SQL Server Version | Code Name | Release Year | Internal Database Version | Database Compatibility Level | -|:---------------------------------------------|:------------|-------------:|--------------------------:|-----------------------------:| -| SQL Server 2016 | ? | 2016 | 782 | 120 | -| SQL Server 2014 | SQL14 | 2014 | 782 | 120 | -| SQL Server 2012 | Denali | 2012 | 706 | 110 | -| SQL Server 2012 CTP1 | Denali | 2010 | 684 | 110 | -| SQL Server 2008 R2 | Kilimanjaro | 2010 | 660 / 661 | 100 | -| Azure SQL DB | CloudDB | 2010 | ? | ? | -| SQL Server 2008 | Katmai | 2008 | 655 | 100 | -| SQL Server 2005 SP2+ with VarDecimal enabled | Yukon | 2005 | 612 | 90 | -| SQL Server 2005 | Yukon | 2005 | 611 | 90 | -| SQL Server 2000 | Shiloh | 2000 | 539 | 80 | -| SQL Server 7.0 | Sphinx | 1998 | 515 | 70 | -| SQL Server 6.5 | Hydra | 1996 | 408 | 65 | -| SQL Server 6.0 | SQL95 | 1995 | ? | 60 | -| SQL Server 4.21 | SQLNT | 1993 | ? | 60 | -| SQL Server 1.1 (16 bit) | ? | 1991 | ? | 60 | -| SQL Server 1.0 (16 bit) | Ashton-Tate | 1989 | ? | 60 | - - -## Quick summary for SQL Server Service Packs - -| Version | Codename | RTM (no SP) | SP1 | SP2 | SP3 | SP4 | -|:-------------------|:------------|:-------------|:--------------------------------|:--------------------------------|:----------------------------------|:--------------------------------| -| SQL Server 2016 | ? | [RC3] | | | | | -| SQL Server 2014 | SQL14 | 12.0.2000.8 | [12.0.4100.1]
12.1.4100.1 | | | | -| SQL Server 2012 | Denali | 11.0.2100.60 | [11.0.3000.0]
11.1.3000.0 | [11.0.5058.0] | [11.0.6020.0] | | -| SQL Server 2008 R2 | Kilimanjaro | 10.50.1600.1 | [10.50.2500.0]
10.51.2500.0 | [10.50.4000.0]
10.52.4000.0 | [10.50.6000.34]
10.53.6000.34 | | -| SQL Server 2008 | Katmai | 10.0.1600.22 | [10.0.2531.0]
10.1.2531.0 | [10.0.4000.0]
10.2.4000.0 | [10.0.5500.0]
10.3.5500.0 | [10.0.6000.29]
10.4.6000.29 | -| SQL Server 2005 | Yukon | 9.0.1399.06 | [9.0.2047] | [9.0.3042] | [9.0.4035] | [9.0.5000] | -| SQL Server 2000 | Shiloh | 8.0.194 | [8.0.384] | [8.0.532] | [8.0.760] | [8.0.2039] | -| SQL Server 7.0 | Sphinx | 7.0.623 | 7.0.699 | 7.0.842 | 7.0.961 | [7.0.1063] | - -[RC3]:https://www.microsoft.com/en-in/evalcenter/evaluate-sql-server-2016 +## SQL Server Developer Edition Info + +**Now it is free!!!** [SQL Server Developer Edition Download page](https://my.visualstudio.com/downloads?q=sql%20server%20developer) + +For downloading your copy SQL Server Developer Edition you just need to join the [Visual Studio Dev Essentials program](https://www.visualstudio.com/en-us/products/visual-studio-dev-essentials-vs.aspx) + +| Edition\Direct Download Link | Release Date | File name | Size, Mb | SHA1 | +|-----------------------------------------------------------------------------|--------------|------------------------------------------------------------------------------|---------:|------------------------------------------| +| SQL Server 2017 Developer (x64) - DVD (English) | 2017-10-02 | en_sql_server_2017_developer_x64_dvd_11296168.iso | 1475 | 0280FF6C1447D287A6BD3B86B81E459FE252D17A | +| SQL Server 2016 Developer with Service Pack 2 (x64) - DVD (English) | 2018-05-22 | en_sql_server_2016_developer_with_service_pack_2_x64_dvd_12194995.iso | 2800 | 74279286C2ABFBA9E9FF6DBEE60B71669BD234D2 | +| SQL Server 2016 Developer (x64) - DVD (English) | 2016-06-01 | en_sql_server_2016_developer_x64_dvd_8777069.iso | 2100 | 1B23982FE56DF3BFE0456BDF0702612EB72ABF75 | +| SQL Server 2014 Developer Edition with Service Pack 1 (x64) - DVD (English) | 2015-05-21 | en_sql_server_2014_developer_edition_with_service_pack_1_x64_dvd_6668542.iso | 3025 | BFEE1F300C39638DA0D2CD594636698C6207C852 | +| SQL Server 2014 Developer Edition with Service Pack 1 (x86) - DVD (English) | 2015-05-21 | en_sql_server_2014_developer_edition_with_service_pack_1_x86_dvd_6668541.iso | 2462 | ED3C70507A73BCC63D67CFA272CD849B9418A18E | +| SQL Server 2014 Developer Edition (x64) - DVD (English) | 2014-04-01 | en_sql_server_2014_developer_edition_x64_dvd_3940406.iso | 2486 | F73F430F55A71DA219FC7257A3A28E8FC142530F | +| SQL Server 2014 Developer Edition (x86) - DVD (English) | 2014-04-01 | en_sql_server_2014_developer_edition_x86_dvd_3938200.iso | 2039 | 395B35FD80AA959B02B0C399DA1BB0C020DB6310 | + + +## SQL Server Express direct download links + +Original post written by Scott Hanselman: http://www.hanselman.com/blog/DownloadSQLServerExpress.aspx
+Official Microsoft SQL Server Express page: https://www.microsoft.com/en-us/server-cloud/products/sql-server-editions/sql-server-express.aspx + + +### [Download SQL Server 2017 Express](https://www.microsoft.com/en-us/download/details.aspx?id=55994) + +### [Download SQL Server 2016 Express](https://www.microsoft.com/en-us/download/details.aspx?id=52679) + + +### [Download SQL Server 2014 Express](http://www.microsoft.com/en-us/download/details.aspx?id=42299) +[Download Microsoft SQL Server 2014 Service Pack 1 (SP1) Express ](https://www.microsoft.com/en-us/download/details.aspx?id=46697)
+You likely just want SQL Server 2014 Express with Tools. This download includes SQL Management Studio: + - [SQL Server 2014 Express x64](http://download.microsoft.com/download/E/A/E/EAE6F7FC-767A-4038-A954-49B8B05D04EB/ExpressAndTools%2064BIT/SQLEXPRWT_x64_ENU.exe) + - [SQL Server 2014 Express x86](http://download.microsoft.com/download/E/A/E/EAE6F7FC-767A-4038-A954-49B8B05D04EB/ExpressAndTools%2032BIT/SQLEXPRWT_x86_ENU.exe) + +Here's just SQL Server 2014 Management Studio: + - [SQL Management Studio x64](http://download.microsoft.com/download/E/A/E/EAE6F7FC-767A-4038-A954-49B8B05D04EB/MgmtStudio%2064BIT/SQLManagementStudio_x64_ENU.exe) + - [SQL Management Studio x86](http://download.microsoft.com/download/E/A/E/EAE6F7FC-767A-4038-A954-49B8B05D04EB/MgmtStudio%2032BIT/SQLManagementStudio_x86_ENU.exe) + +SQL Server 2014 Express with Advanced Services: + - [Advanced Services x64](http://download.microsoft.com/download/E/A/E/EAE6F7FC-767A-4038-A954-49B8B05D04EB/ExpressAdv%2064BIT/SQLEXPRADV_x64_ENU.exe) + - [Advanced Services x86](http://download.microsoft.com/download/E/A/E/EAE6F7FC-767A-4038-A954-49B8B05D04EB/ExpressAdv%2032BIT/SQLEXPRADV_x86_ENU.exe) + + +### [Download SQL Server 2012 Express](http://www.microsoft.com/en-us/download/details.aspx?id=29062) +[Download Microsoft SQL Server 2012 Service Pack 1 (SP1) Express ](https://www.microsoft.com/en-us/download/details.aspx?id=35579)
+You likely just want SQL Server 2012 Express with Tools. This download includes SQL Management Studio: + - [SQL Server 2012 Express x64](http://download.microsoft.com/download/8/D/D/8DD7BDBA-CEF7-4D8E-8C16-D9F69527F909/ENU/x64/SQLEXPRWT_x64_ENU.exe) + +Here's just SQL Server 2012 Management Studio: + - [SQL Management Studio x64](http://download.microsoft.com/download/8/D/D/8DD7BDBA-CEF7-4D8E-8C16-D9F69527F909/ENU/x64/SQLManagementStudio_x64_ENU.exe) + - [SQL Management Studio x86](http://download.microsoft.com/download/8/D/D/8DD7BDBA-CEF7-4D8E-8C16-D9F69527F909/ENU/x86/SQLManagementStudio_x86_ENU.exe) + + +### [Download SQL Server 2008 Express R2 SP2](http://www.microsoft.com/en-us/download/details.aspx?id=30438) +You likely just want SQL Server 2008 Express with Tools. This download includes SQL Management Studio: + - [SQL Server 2008 Express x64](http://download.microsoft.com/download/0/4/B/04BE03CD-EAF3-4797-9D8D-2E08E316C998/SQLEXPRWT_x64_ENU.exe) + - [SQL Server 2008 Express x86](http://download.microsoft.com/download/0/4/B/04BE03CD-EAF3-4797-9D8D-2E08E316C998/SQLEXPRWT_x86_ENU.exe) + +Here's just SQL Server 2008 Management Studio: + - [SQL Management Studio x64](http://download.microsoft.com/download/0/4/B/04BE03CD-EAF3-4797-9D8D-2E08E316C998/SQLManagementStudio_x64_ENU.exe) + - [SQL Management Studio x86](http://download.microsoft.com/download/0/4/B/04BE03CD-EAF3-4797-9D8D-2E08E316C998/SQLManagementStudio_x86_ENU.exe) + + +### [Download SQL Server 2005 Express](https://www.microsoft.com/en-us/download/details.aspx?id=21844) + + +## Internal Database Version and Compatibility Level + + +### Database Compatibility Level +The compatibility level of a database dictates how certain language elements of the database function as it relates to an earlier version of SQL Server. +In a nutshell, this offers up partial “backward compatibility” to an earlier version. +This functionality is not all encompassing as only certain aspects (i.e. certain syntax) of the database would pertain to this setting. + +You can see what compatibility level a database is at by using the SSMS or via code. + +Via SSMS: + 1. After connecting to the appropriate instance of the SQL Server Database Engine, in Object Explorer, click the server name. + 2. Expand **Databases**, and, depending on the database, either select a user database or expand **System Databases** and select a system database. + 3. Right-click the database, and then click **Properties**. The **Database Properties** dialog box opens. + 4. In the **Select a page** pane, click **Options**. The current compatibility level is displayed in the **Compatibility level** list box. + 5. To change the compatibility level, select a different option from the list. The choices are **SQL Server 2008 (100)**, **SQL Server 2012 (110)** or **SQL Server 2014 (120)**. + +Via T-SQL: +```sql +-- For SQL Server 2005 and newer +SELECT name, compatibility_level FROM sys.databases WHERE name = 'DatabaseNameHere'; + +-- For SQL Server 2000 +SELECT name, cmptlevel FROM sysdatabases WHERE name = 'DatabaseNameHere'; +``` + +To ALTER DATABASE Compatibility Level use simple command: +```sql +ALTER DATABASE database_name SET COMPATIBILITY_LEVEL = { 150 | 140 | 130 | 120 | 110 | 100 | 90 } +``` + +### Internal Database Version and Compatibility level +[The Importance of Database Compatibility Level in SQL Server](https://www.sqlskills.com/blogs/glenn/the-importance-of-database-compatibility-level-in-sql-server/) + +The database version is a number stamped in the boot page of a database that indicates the SQL Server version of the most recent SQL Server instance the database was attached to. +**The database version number does not equal the SQL Server version and does not equal the compatibility level should be considered as a completely different attribute of the database.** + +The database version is an internal versioning system that defines what version of SQL Server the database was a recent resident of. +If you migrate a database from an older version to a newer version, the database version value will be increased to reflect the version number of the new server’s model database. + +When you create a database, the database version is "stamped" with the same version as the **Model** database. +It is worth noting that if the **Model** database was originally created on a different server edition and then subsequently upgraded, you potentially could end up +with slightly different numbers than what you might expect. +As you upgrade the database to new SQL Server edition (you can not go backward) the version of the database increases. +This is done automatically regardless of what method you use to upgrade the database to the new version of SQL Server. + +```sql +-- 1 using DBCC PAGE to look at the boot page (9) of the database +DBCC TRACEON(3604); +DBCC PAGE('DatabaseName', 1, 9, 3); +DBCC TRACEOFF(3604); +GO + +-- 2 using DBCC DBINFO +DBCC TRACEON(3604); +DBCC DBINFO; +DBCC TRACEOFF(3604); +GO + +-- 3 using database property +SELECT DatabaseProperty('DatabaseNameHere','version'); +GO + +-- 4 using RESTORE HEADERONLY for backup files, field DatabaseVersion +RESTORE HEADERONLY FROM DISK=N'd:\DatabseBackupFile.bak' WITH NOUNLOAD; +GO +``` + +You will note that for each DBCC command we have to turn on [trace flag 3604](https://rebrand.ly/gh-sqlserver-trace-flags#3604) so that the output of the DBCC command is sent to the SSMS window rather than the default location, the SQL Server log. + +If you are still on SQL Serever 2000, you can see this information with a simple query: +```sql +SELECT name, version FROM master.dbo.sysdatabases; +``` + +Execute the following query to determine the version of the Database Engine that you are connected to: +```sql +SELECT SERVERPROPERTY('ProductVersion'); +``` + +| SQL Server Version | Database Engine | Code Name | Release Year | Internal Database Version | Compatibility Level Designation | Supported Compatibility Level | +|:---------------------------------------------|----------------:|:-------------|-------------:|--------------------------:|--------------------------------:|------------------------------:| +| SQL Server 2019 | 15 | 2019 | 2018 | 895 | 150 | 150, 140, 130, 120, 110 | +| SQL Server 2017 | 14 | 2017 | 2017 | 869 | 140 | 140, 130, 120, 110, 100 | +| SQL Server 2016 | 13 | 2016 | 2016 | 852 | 130 | 130, 120, 110, 100 | +| Azure SQL Database | 14 | CloudDB | 2010 (2018) | 862 | 140 | 140, 130, 120, 110, 100 | +| SQL Server 2014 | 12 | SQL14 | 2014 | 782 | 120 | 120, 110, 100 | +| SQL Server 2012 | 11 | Denali | 2012 | 706 | 110 | 110, 100, 90 | +| SQL Server 2012 CTP1 | 11 | Denali | 2010 | 684 | 110 | 110, 100, 90 | +| SQL Server 2008 R2 | 10.5 | Kilimanjaro | 2010 | 660 / 661 | 100 | 100, 90, 80 | +| SQL Server 2008 | 10 | Katmai | 2008 | 655 | 100 | 100, 90, 80 | +| SQL Server 2005 SP2+ with VarDecimal enabled | 9 | Yukon | 2005 | 612 | 90 | 90, 80 | +| SQL Server 2005 | 9 | Yukon | 2005 | 611 | 90 | 90, 80 | +| SQL Server 2000 | 8 | Shiloh | 2000 | 539 | 80 | 80 | +| SQL Server 7.0 | ? | Sphinx | 1998 | 515 | 70 | 70 | +| SQL Server 6.5 | ? | Hydra | 1996 | 408 | 65 | 65 | +| SQL Server 6.0 | ? | SQL95 | 1995 | ? | 60 | ? | +| SQL Server 4.21 | ? | SQLNT | 1993 | ? | 60 | ? | +| SQL Server 1.1 (16 bit) | ? | ? | 1991 | ? | 60 | ? | +| SQL Server 1.0 (16 bit) | ? | Ashton-Tate | 1989 | ? | 60 | ? | + +**Azure SQL Database V12** was released in December 2014. One aspect of that release was that newly created databases had their compatibility level set to 120. In 2015 SQL Database began support for level 130, although the default remained 120. + +Starting in mid-June 2016, in Azure SQL Database, the default compatibility level will be 130 instead of 120 for newly created databases. Existing databases created before mid-June 2016 will not be affected, and will maintain their current compatibility level (100, 110, or 120). + +If you want level 130 for your database generally, but you have reason to prefer the level 110 cardinality estimation algorithm, see [ALTER DATABASE SCOPED CONFIGURATION (Transact-SQL)](https://msdn.microsoft.com/en-us/library/mt629158.aspx), and in particular its keyword LEGACY_CARDINALITY_ESTIMATION =ON. + +For details about how to assess the performance differences of your most important queries, between two compatibility levels on Azure SQL Database, see [Improved Query Performance with Compatibility Level 130 in Azure SQL Database](http://azure.microsoft.com/documentation/articles/sql-database-compatibility-level-query-performance-130/). + +### References + - [Compatibility Level vs Database Version](http://sqlrus.com/2014/10/compatibility-level-vs-database-version/) (by John Morehouse) + - [What’s the difference between database version and database compatibility level?](https://blogs.msdn.microsoft.com/sqlserverstorageengine/2007/04/26/whats-the-difference-between-database-version-and-database-compatibility-level/) (by Paul Randal) + - [ALTER DATABASE Compatibility Level (Transact-SQL)](https://msdn.microsoft.com/library/bb510680(SQL.130).aspx) + - [View or Change the Compatibility Level of a Database](https://msdn.microsoft.com/library/bb933794.aspx) + - [Database Version vs Database Compatibility Level](http://sqlblog.com/blogs/jonathan_kehayias/archive/2009/07/28/database-version-vs-database-compatibility-level.aspx) (by Jonathan Kehayias) + + +## Quick summary for SQL Server Service Packs + + +| Version | Codename | RTM (no SP) | SP1 | SP2 | SP3 | SP4 | +|:-------------------|:------------|:----------------|:---------------|:--------------------------------|:----------------------------------|:--------------------------------| +| SQL Server 2017 | 2017 | [14.0.1000.169] | | | | | +| SQL Server 2016 | 2016 | [13.0.1601.5] | [13.0.4001.0] | [13.5026.0] | | | +| SQL Server 2014 | SQL14 | 12.0.2000.8 | [12.0.4100.1] | [12.0.5000.0] | | | +| SQL Server 2012 | Denali | 11.0.2100.60 | [11.0.3000.0] | [11.0.5058.0] | [11.0.6020.0] | [11.0.7001.0] | +| SQL Server 2008 R2 | Kilimanjaro | 10.50.1600.1 | [10.50.2500.0] | [10.50.4000.0]
10.52.4000.0 | [10.50.6000.34]
10.53.6000.34 | | +| SQL Server 2008 | Katmai | 10.0.1600.22 | [10.0.2531.0] | [10.0.4000.0]
10.2.4000.0 | [10.0.5500.0]
10.3.5500.0 | [10.0.6000.29]
10.4.6000.29 | +| SQL Server 2005 | Yukon | 9.0.1399.06 | [9.0.2047] | [9.0.3042] | [9.0.4035] | [9.0.5000] | +| SQL Server 2000 | Shiloh | 8.0.194 | [8.0.384] | [8.0.532] | [8.0.760] | [8.0.2039] | +| SQL Server 7.0 | Sphinx | 7.0.623 | 7.0.699 | 7.0.842 | 7.0.961 | [7.0.1063] | + +[14.0.1000.169]:https://www.microsoft.com/en-us/sql-server/sql-server-downloads +[13.5026.0]:https://go.microsoft.com/fwlink/?LinkID=799011 +[13.0.1601.5]:https://www.microsoft.com/en-in/evalcenter/evaluate-sql-server-2016 +[13.0.4001.0]:https://support.microsoft.com/en-us/kb/3182545 +[12.0.5000.0]:https://support.microsoft.com/en-us/kb/3171021 [12.0.4100.1]:http://www.microsoft.com/en-us/download/details.aspx?id=46694 [11.0.3000.0]:http://www.microsoft.com/en-us/download/details.aspx?id=35575 [11.0.5058.0]:http://www.microsoft.com/en-us/download/details.aspx?id=43340 [11.0.6020.0]:http://www.microsoft.com/en-us/download/details.aspx?id=49996 +[11.0.7001.0]:https://www.microsoft.com/en-us/download/details.aspx?id=56040 [10.50.2500.0]:http://www.microsoft.com/en-us/download/details.aspx?id=26727 [10.50.4000.0]:http://www.microsoft.com/en-us/download/details.aspx?id=30437 [10.50.6000.34]:http://www.microsoft.com/en-us/download/details.aspx?id=44271 @@ -238,100 +444,399 @@ FOR /R "d:\YaDsik\Backup\Distrib\SQL Server" %I IN (*.exe) DO certUtil -hashfile [7.0.1063]:https://www.microsoft.com/en-us/download/details.aspx?id=7959 -## Microsoft SQL Server 2016 Builds -Here is the latest output from `SELECT @@VERSION`: +## Microsoft SQL Server 2019 Builds + +More additional information about latest vNext SQL Server release you can find in this articles: + - [What's new in SQL Server 2019](https://docs.microsoft.com/en-us/sql/sql-server/what-s-new-in-sql-server-ver15?view=sql-server-ver15#utf-8-support) + - [What's New in the First Public CTP of SQL Server 2019](https://www.mssqltips.com/sqlservertip/5710/whats-new-in-the-first-public-ctp-of-sql-server-2019/) + - [Froid: How SQL Server vNext Might Fix the Scalar Functions Problem](https://www.brentozar.com/archive/2018/01/froid-sql-server-vnext-might-fix-scalar-functions-problem/) + - [What’s New in SQL Server 2019 System Tables](https://www.brentozar.com/archive/2018/09/whats-new-in-sql-server-2019-system-tables/) + - [What’s New in SQL Server 2019’s sys.messages: More Unannounced Features](https://www.brentozar.com/archive/2018/09/whats-new-in-sql-server-2019s-sys-messages-more-unannounced-features/) + - [What’s New in SQL Server 2019: Faster Table Variables (And New Parameter Sniffing Issues)](https://www.brentozar.com/archive/2018/09/sql-server-2019-faster-table-variables-and-new-parameter-sniffing-issues/) + - [What’s New in SQL Server 2019: Adaptive Memory Grants](https://www.brentozar.com/archive/2018/09/whats-new-in-sql-server-2019-adaptive-memory-grants/) + - [Leaked: SQL Server 2019 Big Data Clusters Introduction Video](https://www.brentozar.com/archive/2018/09/leaked-sql-server-2019-big-data-clusters-introduction-video/) + - [Native UTF-8 Support in SQL Server 2019: Savior, False Prophet, or Both?](https://sqlquantumleap.com/2018/09/28/native-utf-8-support-in-sql-server-2019-savior-false-prophet-or-both/) + +Here is the latest output from `SELECT @@VERSION` for SQL Server 2019 CTP Developer Edition: + +``` +Microsoft SQL Server 2019 (CTP2.1) - 15.0.1100.94 (X64) + Nov 1 2018 14:35:49 + Copyright (C) 2018 Microsoft Corporation + Developer Edition (64-bit) on… +``` + +| Build | File version | Branch | Type | KB / Description | Release Date | Build Date | Fixes | Public | Size, Mb | +|---------------|-------------------|--------|------|----------------------------------- |--------------|------------|------:|-------:|---------:| +| 15.0.1200.24 | 2018.150.1200.24 | CTP | CTP | [Microsoft SQL Server 2019 CTP2.2] | 2018-12-11 | 2018-11-02 | | | 1302 | +| 15.0.1100.94 | 2018.150.1100.34 | CTP | CTP | Microsoft SQL Server 2019 CTP2.1 | 2018-11-06 | 2018-11-02 | | | 1299 | +| 15.0.1000.34 | 2018.150.1000.34 | CTP | CTP | Microsoft SQL Server 2019 CTP2.0 | 2018-09-24 | 2018-09-18 | | | 1532 | + +[Microsoft SQL Server 2019 CTP2.2]:https://www.microsoft.com/en-us/sql-server/sql-server-2019#Install + + +## Microsoft SQL Server 2017 Builds + + +All SQL Server 2017 CU downloads: [Catalog Update Microsoft SQL Server 2017](http://www.catalog.update.microsoft.com/Search.aspx?q=sql%20server%202017) + +Here is the latest output from `SELECT @@VERSION` for SQL Server 2017 Developer Edition: + +``` +Microsoft SQL Server 2017 (RTM-CU13-OD) (KB4483666) - 14.0.3049.1 (X64) + Dec 15 2018 11:16:42 + Copyright (C) 2017 Microsoft Corporation + Developer Edition (64-bit) on … +``` + +Useful articles: + - [Release notes for SQL Server 2017 on Linux](https://docs.microsoft.com/en-us/sql/linux/sql-server-linux-release-notes) + - [How I spot not-yet-documented features in SQL Server CTPs](https://blogs.sentryone.com/aaronbertrand/fishing-for-features-in-ctps/) + - [More ways to discover changes in new versions of SQL Server](https://blogs.sentryone.com/aaronbertrand/more-changes-sql-server/) + +| Build | File version | Branch | Type | KB / Description | Release Date | Build Date | Fixes | Public | Size, Mb | +|---------------|-------------------|--------|------|----------------------------------------------------------------------------------------------------------|--------------|------------|------:|-------:|---------:| +| 14.0.3049.1 | 2017.140.3049.1 | RTM | COD | [4483666 On-demand hotfix update package for SQL Server 2017 CU13] | 2018-01-09 | 2018-12-15 | 3 | 3 | 488 | +| 14.0.3048.4 | 2017.140.3048.4 | RTM | CU | **Withdrawn** [4466404 Microsoft SQL Server 2017 CU13] | 2018-12-18 | 2018-12-01 | 62 | 50 | 488 | +| 14.0.3045.24 | 2017.140.3045.24 | RTM | CU | [4464082 Microsoft SQL Server 2017 CU12] | 2018-10-24 | 2018-10-19 | 22 | 18 | 488 | +| 14.0.3038.14 | 2017.140.3038.14 | RTM | CU | [4462262 Microsoft SQL Server 2017 CU11] | 2018-09-20 | 2018-09-14 | 21 | 14 | 487 | +| 14.0.3037.1 | 2017.140.3037.1 | RTM | CU | [4342123 Microsoft SQL Server 2017 CU10] | 2018-08-27 | 2018-07-27 | 30 | 22 | 486 | +| 14.0.3035.2 | 2017.140.3035.2 | RTM | COD | [4293805 Security update for SQL Server 2017 CU: August 14, 2018] **CVE-2018-8273** | 2018-08-14 | 2018-07-07 | 1 | 1 | 486 | +| 14.0.3030.27 | 2017.140.3030.27 | RTM | CU | [4341265 Microsoft SQL Server 2017 CU9] | 2018-07-18 | 2018-06-30 | 27 | 18 | 486 | +| 14.0.3029.16 | 2017.140.3029.16 | RTM | CU | [4338363 Microsoft SQL Server 2017 CU8] | 2018-06-21 | 2018-06-13 | 60 | 31 | 475 | +| 14.0.3026.27 | 2017.140.3026.27 | RTM | CU | [4229789 Microsoft SQL Server 2017 CU7] | 2018-05-24 | 2018-05-10 | 47 | 28 | 473 | +| 14.0.3025.34 | 2017.140.3025.34 | RTM | CU | [4101464 Microsoft SQL Server 2017 CU6] | 2018-04-19 | 2018-03-03 | 39 | 39 | 473 | +| 14.0.3023.8 | 2017.140.3023.8 | RTM | CU | [4092643 Microsoft SQL Server 2017 CU5] | 2018-03-20 | 2018-03-03 | 22 | 13 | 472 | +| 14.0.3022.28 | 2017.140.3022.28 | RTM | CU | [4056498 Microsoft SQL Server 2017 CU4] | 2018-02-20 | 2018-02-10 | 81 | 55 | 472 | +| 14.0.3015.40 | 2017.140.3015.40 | RTM | CU | [4052987 Microsoft SQL Server 2017 CU3] | 2017-01-03 | 2017-12-23 | 14 | 13 | 459 | +| 14.0.3008.27 | 2017.140.3008.27 | RTM | CU | [4052574 Microsoft SQL Server 2017 CU2] | 2017-11-28 | 2017-11-16 | 56 | 33 | 276 | +| 14.0.3006.16 | 2017.140.3006.16 | RTM | CU | [4038634 Microsoft SQL Server 2017 CU1] | 2017-10-24 | 2017-10-19 | 72 | 68 | 250 | +| 14.0.2002.14 | 2017.140.2002.14 | RTM | COD | [4293803 Security update for SQL Server 2017 GDR: August 14, 2018] **CVE-2018-8273** | 2018-08-14 | 2018-07-21 | 1 | 1 | 433 | +| 14.0.2000.63 | 2017.140.2000.63 | RTM | COD | [4057122 Security update for SQL Server 2017 GDR: January 3, 2018] **CVE-2017-5715,2017-5753,2017-5754** | 2018-01-03 | 2017-12-23 | 1 | 1 | 431 | +| 14.0.1000.169 | 2017.140.1000.169 | RTM | RTM | [Microsoft SQL Server 2017 RTM] | 2017-10-02 | 2017-08-23 | | | 1475 | +| 14.0.900.75 | 2017.140.900.75 | RC | RC | Microsoft SQL Server 2017 Release Candidate 2 | 2017-08-02 | 2017-07-27 | | | 1473 | +| 14.0.800.90 | 2017.140.800.90 | RC | RC | Microsoft SQL Server 2017 Release Candidate 1 | 2017-07-17 | 2017-07-11 | | | 1473 | +| 14.0.600.250 | 2017.140.600.250 | CTP | CTP | Microsoft SQL Server 2017 Community Technology Preview 2.1 (CTP2.1) | 2017-05-17 | 2017-05-10 | | | 1606 | +| 14.0.500.272 | 2017.140.500.272 | CTP | CTP | Microsoft SQL Server vNext Community Technology Preview 2.0 (CTP2.0) | 2017-04-19 | 2017-04-13 | | | 1721 | +| 14.0.405.198 | 2017.140.405.198 | CTP | CTP | Microsoft SQL Server vNext Community Technology Preview 1.4 (CTP1.4) | 2017-03-17 | 2017-03-11 | | | 2001 | +| 14.0.304.138 | 2016.140.304.138 | CTP | CTP | Microsoft SQL Server vNext Community Technology Preview 1.3 (CTP1.3) | 2017-02-17 | 2017-02-14 | | | 1978 | +| 14.0.200.24 | 2016.140.200.24 | CTP | CTP | Microsoft SQL Server vNext Community Technology Preview 1.2 (CTP1.2) | 2017-01-18 | 2017-01-11 | | | 1975 | +| 14.0.100.187 | 2016.140.100.187 | CTP | CTP | Microsoft SQL Server vNext Community Technology Preview 1.1 (CTP1.1) | 2016-12-16 | 2016-12-11 | | | 1975 | +| 14.0.1.246 | 2016.140.1.246 | CTP | CTP | Microsoft SQL Server vNext Community Technology Preview 1 (CTP1) | 2016-11-16 | 2016-11-02 | | | 1983 | + +[4483666 On-demand hotfix update package for SQL Server 2017 CU13]:https://support.microsoft.com/help/4483666 +[4466404 Microsoft SQL Server 2017 CU13]:https://support.microsoft.com/help/4466404 +[4464082 Microsoft SQL Server 2017 CU12]:https://support.microsoft.com/help/4464082 +[4462262 Microsoft SQL Server 2017 CU11]:https://support.microsoft.com/help/4462262 +[4342123 Microsoft SQL Server 2017 CU10]:https://support.microsoft.com/help/4342123 +[4293805 Security update for SQL Server 2017 CU: August 14, 2018]:https://support.microsoft.com/help/4293805 +[4341265 Microsoft SQL Server 2017 CU9]:https://support.microsoft.com/help/4341265 +[4338363 Microsoft SQL Server 2017 CU8]:https://support.microsoft.com/help/4338363 +[4229789 Microsoft SQL Server 2017 CU7]:https://support.microsoft.com/help/4229789 +[4101464 Microsoft SQL Server 2017 CU6]:https://support.microsoft.com/help/4101464 +[4092643 Microsoft SQL Server 2017 CU5]:https://support.microsoft.com/help/4092643 +[4056498 Microsoft SQL Server 2017 CU4]:https://support.microsoft.com/help/4056498 +[4052987 Microsoft SQL Server 2017 CU3]:https://support.microsoft.com/help/4052987 +[4052574 Microsoft SQL Server 2017 CU2]:https://support.microsoft.com/help/4052574 +[4038634 Microsoft SQL Server 2017 CU1]:https://support.microsoft.com/help/4038634 +[4293803 Security update for SQL Server 2017 GDR: August 14, 2018]:https://support.microsoft.com/help/4293803 +[4057122 Security update for SQL Server 2017 GDR: January 3, 2018]:https://support.microsoft.com/help/4057122 +[Microsoft SQL Server 2017 RTM]:https://www.microsoft.com/sql-server/sql-server-downloads + + + +## Microsoft SQL Server 2016 Builds + +All SQL Server 2016 CU downloads: [Catalog Update Microsoft SQL Server 2016](http://www.catalog.update.microsoft.com/Search.aspx?q=sql%20server%202016) + +Here is the latest output from `SELECT @@VERSION` for SQL Server 2016 Developer Edition on Windows: +``` +Microsoft SQL Server 2016 (SP2-CU5) (KB4475776) - 13.0.5264.1 (X64) + Jan 10 2019 18:51:38 + Copyright (c) Microsoft Corporation + Developer Edition (64-bit) on … ``` -Microsoft SQL Server 2016 (RC3) - 13.0.1400.361 (X64) - Apr 9 2016 01:59:22 - Copyright (c) Microsoft Corporation - Developer Edition (64-bit) on ... + +| Build | File version | Branch | Type | KB / Description | Release Date | Build Date | Fixes | Public | Size, Mb | +|---------------|-------------------|--------|------|--------------------------------------------------------------------------------------------------------------------------------|--------------|------------|------:|-------:|---------:| +| 13.0.5264.1 | 2015.130.5264.1 | SP2 | CU | [4475776 Cumulative Update 5 for SQL Server 2016 SP2] | 2019-01-23 | 2019-01-11 | 52 | 43 | 712 | +| 13.0.5239.0 | 2015.130.5239.0 | SP2 | COD | [4482972 On-demand hotfix update package 2 for SQL Server 2016 SP2 CU4] | 2018-12-20 | 2018-12-03 | 3 | 3 | 690 | +| 13.0.5233.0 | 2015.130.5233.0 | SP2 | CU | [4464106 Cumulative Update 4 for SQL Server 2016 SP2] | 2018-11-13 | 2018-11-03 | 42 | 36 | 690 | +| 13.0.5216.0 | 2015.130.5216.0 | SP2 | CU | [4458871 Cumulative Update 3 for SQL Server 2016 SP2] | 2018-09-21 | 2018-09-14 | 41 | 27 | 688 | +| 13.0.5201.2 | 2015.131.5201.2 | SP2 | CU | [4458621 Security update for SQL Server 2016 SP2 CU: August 19, 2018] **CVE-2018-8273** | 2018-08-19 | 2018-08-18 | 1 | 0 | 672 | +| 13.0.5161.0 | 2015.131.5161.0 | SP2 | CU | **Withdrawn** [4293807 Security update for SQL Server 2016 SP2 (CU): August 14, 2018] **CVE-2018-8273** | 2018-08-14 | 2018-07-18 | 1 | 0 | 672 | +| 13.0.5153.0 | 2015.130.5153.0 | SP2 | CU | [4340355 Cumulative Update 2 for SQL Server 2016 SP2] | 2018-07-16 | 2018-06-29 | 29 | 21 | 671 | +| 13.0.5149.0 | 2015.130.5149.0 | SP2 | CU | [4135048 Cumulative Update 1 for SQL Server 2016 SP2] | 2018-05-30 | 2018-05-19 | 45 | 28 | 549 | +| 13.0.5081.1 | 2015.131.5081.1 | SP2 | COD | [4293802 Security update for SQL Server 2016 SP2 GDR: August 14, 2018] **CVE-2018-8273** | 2018-05-30 | 2018-05-19 | 1 | 0 | 492 | +| 13.0.5026.0 | 2015.130.5026.0 | SP2 | SP | [4052908 SQL Server 2016 Service Pack 2 release information] | 2018-04-24 | 2018-03-18 | 50 | 50 | 774 | +| 13.0.4550.1 | 2015.130.4550.1 | SP1 | CU | [4475775 Cumulative Update 13 for SQL Server 2016 SP1] | 2019-01-23 | 2019-01-11 | 12 | 9 | 761 | +| 13.0.4541.0 | 2015.130.4541.0 | SP1 | CU | [4464343 Cumulative Update 12 for SQL Server 2016 SP1] | 2018-11-13 | 2018-10-27 | 21 | 16 | 761 | +| 13.0.4531.0 | 2015.130.4531.0 | SP1 | COD | [4465443 FIX: The "modification_counter" in DMV sys.dm_db_stats_properties shows incorrect value when partitions are merged] | 2018-09-27 | 2018-09-22 | 1 | 1 | 759 | +| 13.0.4528.0 | 2015.130.4528.0 | SP1 | CU | [4459676 Cumulative Update 11 for SQL Server 2016 SP1] | 2018-09-18 | 2018-08-31 | 14 | 8 | 762 | +| 13.0.4522.0 | 2015.130.4522.0 | SP1 | CU | **Withdrawn** [4293808 Security update for SQL Server 2016 SP1 (CU): August 14, 2018] **CVE-2018-8273** | 2018-08-14 | 2018-07-18 | 1 | 0 | 774 | +| 13.0.4514.0 | 2015.130.4514.0 | SP1 | CU | [4341569 Cumulative Update 10 for SQL Server 2016 SP1] | 2018-07-16 | 2018-06-23 | 26 | 21 | 761 | +| 13.0.4502.0 | 2015.130.4502.0 | SP1 | CU | [4100997 Cumulative Update 9 for SQL Server 2016 SP1] | 2018-05-30 | 2018-05-15 | 39 | 25 | 761 | +| 13.0.4474.0 | 2015.130.4474.0 | SP1 | CU | [4077064 Cumulative Update 8 for SQL Server 2016 SP1] | 2018-03-19 | 2018-02-24 | 57 | 37 | 760 | +| 13.0.4466.4 | 2015.130.4466.4 | SP1 | CU | [4057119 Cumulative Update 7 for SQL Server 2016 SP1] | 2018-01-03 | 2017-11-09 | 15 | 14 | 758 | +| 13.0.4457.0 | 2015.130.4457.0 | SP1 | CU | [4037354 Cumulative Update 6 for SQL Server 2016 SP1] | 2017-11-21 | 2017-11-09 | 55 | 41 | 689 | +| 13.0.4451.0 | 2015.130.4451.0 | SP1 | CU | [4040714 Cumulative Update 5 for SQL Server 2016 SP1] | 2017-09-18 | 2017-09-06 | 49 | 44 | 689 | +| 13.0.4446.0 | 2015.130.4446.0 | SP1 | CU | [4024305 Cumulative Update 4 for SQL Server 2016 SP1] | 2017-08-08 | 2017-07-16 | 63 | 49 | 534 | +| 13.0.4435.0 | 2015.130.4435.0 | SP1 | CU | [4019916 Cumulative Update 3 for SQL Server 2016 SP1] | 2017-05-15 | 2017-04-27 | 70 | 57 | 534 | +| 13.0.4422.0 | 2015.130.4422.0 | SP1 | CU | [4013106 Cumulative Update 2 for SQL Server 2016 SP1] | 2017-03-20 | 2017-03-06 | 117 | 100 | 415 | +| 13.0.4411.0 | 2015.130.4411.0 | SP1 | CU | [3208177 Cumulative update 1 for SQL Server 2016 Service Pack 1] | 2017-01-18 | 2017-01-06 | 63 | 55 | 439 | +| 13.0.4224.16 | 2015.130.4224.16 | SP1 | CU | [4458842 Security update for SQL Server 2016 SP1 GDR: August 22, 2018] **CVE-2018-8273** | 2018-08-22 | | 1 | 0 | 700 | +| 13.0.4223.10 | 2015.130.4223.10 | SP1 | CU | **Withdrawn** [4293801 Security update for SQL Server 2016 SP1 GDR: August 14, 2018] **CVE-2018-8273** | 2018-08-14 | | 1 | 0 | | +| 13.0.4210.6 | 2015.130.4210.6 | SP1 | CU | [4057118 Description of the security update for SQL Server 2016 SP1 GDR: January 3, 2018] **CVE-2017-5715,2017-5753,2017-5754**|2018-01-03 | | 1 | 0 | 696 | +| 13.0.4206.0 | 2015.130.4206.0 | SP1 | COD | [4019089 Description of the security update for SQL Server 2016 Service Pack 1 GDR: August 8, 2017] | 2017-07-16 | | 1 | 1 | 364 | +| 13.0.4202.0 | 2015.130.4202.0 | SP1 | COD | [3210089 GDR update package for SQL Server 2016 SP1] | 2016-12-16 | 2016-12-13 | 3 | 3 | 378 | +| 13.0.4199.0 | 2015.130.4199.0 | SP1 | COD | [3207512 Important update for SQL Server 2016 SP1 Reporting Services] | 2016-11-23 | 2016-11-18 | 2 | 2 | 521 | +| 13.0.4001.0 | 2015.130.4001.0 | SP1 | SP | [3182545 SQL Server 2016 Service Pack 1 release information] | 2016-11-16 | 2016-10-29 | 33 | 33 | 552 | +| 13.0.2218.0 | 2015.130.2218.0 | RTM | COD | [4058559 Security update for SQL Server 2016 CU: January 6, 2018] **CVE-2017-5715,2017-5753,2017-5754** | 2018-01-06 | | | | 918 | +| 13.0.2216.0 | 2015.130.2216.0 | RTM | CU | [4037357 Cumulative Update 9 for SQL Server 2016] | 2017-11-21 | 2017-11-09 | 26 | 21 | 865 | +| 13.0.2213.0 | 2015.130.2213.0 | RTM | CU | [4040713 Cumulative Update 8 for SQL Server 2016] | 2017-09-18 | 2017-09-06 | 19 | 17 | 864 | +| 13.0.2210.0 | 2015.130.2210.0 | RTM | CU | [4024304 Cumulative Update 7 for SQL Server 2016] | 2017-08-08 | 2017-07-16 | 33 | 30 | 815 | +| 13.0.2204.0 | 2015.130.2204.0 | RTM | CU | [4019914 Cumulative Update 6 for SQL Server 2016] | 2017-05-15 | 2017-04-20 | 28 | 22 | 814 | +| 13.0.2197.0 | 2015.130.2197.0 | RTM | CU | [4013105 Cumulative Update 5 for SQL Server 2016] | 2017-03-20 | 2017-02-25 | 56 | 47 | 700 | +| 13.0.2193.0 | 2015.130.2193.0 | RTM | CU | [3205052 Cumulative update 4 for SQL Server 2016] | 2017-01-18 | 2017-01-06 | 65 | 57 | 699 | +| 13.0.2190.2 | 2015.130.2190.2 | RTM | COD | [3210110 On-demand hotfix update package for SQL Server 2016 CU3] | 2016-12-16 | 2016-12-13 | 3 | 3 | 691 | +| 13.0.2186.6 | 2015.130.2186.6 | RTM | CU | [3194717 MS16-136: Description of the security update for SQL Server 2016 CU] | 2016-11-08 | 2016-10-31 | 31 | 31 | 691 | +| 13.0.2186.6 | 2015.130.2186.6 | RTM | CU | [3205413 Cumulative update 3 for SQL Server 2016] **Duplicate KB3194717** | 2016-11-08 | 2016-10-31 | | | 691 | +| 13.0.2170.0 | 2015.130.2170.0 | RTM | COD | [3199171 On-demand hotfix update package for SQL Server 2016 CU2] | 2016-11-01 | 2016-10-11 | 4 | 4 | 689 | +| 13.0.2169.0 | 2015.130.2169.0 | RTM | COD | [3195813 On-demand hotfix update package for SQL Server 2016 CU2] | 2016-10-26 | 2016-10-05 | 4 | 4 | 689 | +| 13.0.2164.0 | 2015.130.2164.0 | RTM | CU | [3182270 Cumulative Update 2 for SQL Server 2016] | 2016-09-22 | 2016-09-09 | 68 | 64 | 689 | +| 13.0.2149.0 | 2015.130.2149.0 | RTM | CU | [3164674 Cumulative Update 1 for SQL Server 2016] | 2016-07-25 | 2016-07-11 | 192 | 146 | 665 | +| 13.0.1745.2 | 2015.130.1745.2 | RTM | COD | [4058560 Description of the security update for SQL Server 2016 GDR: January 6, 2018] **CVE-2017-5715,2017-5753,2017-5754** | 2018-01-06 | | | | 687 | +| 13.0.1742.0 | 2015.130.1742.0 | RTM | COD | [4019088 Security update for SQL Server 2016 RTM GDR: August 8, 2017] **CVE-2017-8516** | 2017-08-08 | | | | 451 | +| 13.0.1728.2 | 2015.130.1728.2 | RTM | COD | [3210111 GDR update package for SQL Server 2016 RTM] | 2016-12-16 | | | | 339 | +| 13.0.1722.0 | 2015.130.1722.0 | RTM | COD | [3194716 MS16-136: Description of the security update for SQL Server 2016 GDR] | 2016-11-08 | 2016-10-31 | 3 | 3 | 342 | +| 13.0.1711.0 | 2015.130.1711.0 | RTM | COD | [3179258 Processing a partition causes data loss on other partitions after the database is restored in SQL Server 2016 (1200)] | 2016-08-17 | 2016-07-30 | | | 282 | +| 13.0.1708.0 | 2015.130.1708.0 | RTM | COD | [3164398 Critical update for SQL Server 2016 MSVCRT prerequisites] | 2016-06-04 | 2016-06-02 | | | 265 | +| 13.0.1601.5 | 2015.130.1601.5 | RTM | RTM | [Microsoft SQL Server 2016 RTM] | 2016-06-01 | 2016-04-29 | | | 2050 | +| 13.0.1400.361 | 2015.130.1400.361 | RC | RC | Microsoft SQL Server 2016 Community Technology Release Candidate 3 (RC3) | 2016-04-15 | 2016-04-09 | | | 2114 | +| 13.0.1300.275 | 2015.130.1300.275 | RC | RC | Microsoft SQL Server 2016 Community Technology Release Candidate 2 (RC2) | 2016-04-01 | 2016-03-26 | | | 2101 | +| 13.0.1200.242 | 2015.130.1200.242 | RC | RC | Microsoft SQL Server 2016 Community Technology Release Candidate 1 (RC1) | 2016-03-18 | 2016-03-10 | | | 2083 | +| 13.0.1100.288 | 2015.130.1100.288 | RC | RC | Microsoft SQL Server 2016 Community Technology Release Candidate 0 (RC0) | 2016-03-07 | 2016-02-29 | | | | +| 13.0.1000.281 | 2015.130.1000.281 | CTP | CTP | Microsoft SQL Server 2016 Community Technology Preview 3.3 (CTP3.3) | 2016-02-03 | 2016-01-28 | | | | +| 13.0.900.73 | 2015.130.900.73 | CTP | CTP | Microsoft SQL Server 2016 Community Technology Preview 3.2 (CTP3.2) | 2015-12-17 | 2015-12-10 | | | | +| 13.0.801.12 | 2015.130.801.12 | CTP | CTP | Microsoft SQL Server 2016 Community Technology Preview 3.1 (CTP3.1 refresh) | 2015-12-05 | 2015-12-01 | | | | +| 13.0.801.111 | 2015.130.801.111 | CTP | CTP | Microsoft SQL Server 2016 Community Technology Preview 3.1 (CTP3.1) | 2015-11-30 | 2015-11-21 | | | | +| 13.0.700.242 | 2015.130.700.242 | CTP | CTP | Microsoft SQL Server 2016 Community Technology Preview 3.0 (CTP3.0) | 2015-10-29 | 2015-10-26 | | | | +| 13.0.600.65 | 2015.130.600.65 | CTP | CTP | Microsoft SQL Server 2016 Community Technology Preview 2.4 (CTP2.4) | 2015-09-30 | 2015-09-20 | | | | +| 13.0.500.53 | 2015.130.500.53 | CTP | CTP | Microsoft SQL Server 2016 Community Technology Preview 2.3 (CTP2.3) | 2015-08-28 | 2015-08-24 | | | | +| 13.0.407.1 | 2015.130.407.1 | CTP | CTP | Microsoft SQL Server 2016 Community Technology Preview 2.2 (CTP2.2) | 2015-07-29 | 2015-07-22 | | | | +| 13.0.400.91 | 2015.130.400.91 | CTP | CTP | Microsoft SQL Server 2016 Community Technology Preview 2.2 (CTP2.2) (withdrawn) | 2015-07-22 | 2015-07-16 | | | | +| 13.0.300.44 | 2015.130.300.444 | CTP | CTP | Microsoft SQL Server 2016 Community Technology Preview 2.1 (CTP2.1) | 2015-06-14 | 2015-06-12 | | | | +| 13.0.200.172 | 2015.130.200.172 | CTP | CTP | Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2) | 2015-05-26 | 2015-05-21 | | | | + +[4475776 Cumulative Update 5 for SQL Server 2016 SP2]:https://support.microsoft.com/help/4475776 +[4482972 On-demand hotfix update package 2 for SQL Server 2016 SP2 CU4]:https://support.microsoft.com/help/4482972 +[4464106 Cumulative Update 4 for SQL Server 2016 SP2]:https://support.microsoft.com/help/4464106 +[4458871 Cumulative Update 3 for SQL Server 2016 SP2]:https://support.microsoft.com/help/4458871 +[4458621 Security update for SQL Server 2016 SP2 CU: August 19, 2018]:https://support.microsoft.com/help/4458621 +[4293807 Security update for SQL Server 2016 SP2 (CU): August 14, 2018]:https://support.microsoft.com/help/4293807/ +[4340355 Cumulative Update 2 for SQL Server 2016 SP2]:https://support.microsoft.com/help/4340355 +[4135048 Cumulative Update 1 for SQL Server 2016 SP2]:https://support.microsoft.com/help/4135048 +[4293802 Security update for SQL Server 2016 SP2 GDR: August 14, 2018]:https://support.microsoft.com/help/4293802 +[4464343 Cumulative Update 12 for SQL Server 2016 SP1]:https://support.microsoft.com/help/4464343 +[4465443 FIX: The "modification_counter" in DMV sys.dm_db_stats_properties shows incorrect value when partitions are merged]:https://support.microsoft.com/help/4465443/ +[4052908 SQL Server 2016 Service Pack 2 release information]:https://support.microsoft.com/help/4052908 +[4475775 Cumulative Update 13 for SQL Server 2016 SP1]:https://support.microsoft.com/help/4475775 +[4459676 Cumulative Update 11 for SQL Server 2016 SP1]:https://support.microsoft.com/help/4459676 +[4293808 Security update for SQL Server 2016 SP1 (CU): August 14, 2018]:https://support.microsoft.com/help/4293808 +[4341569 Cumulative Update 10 for SQL Server 2016 SP1]:https://support.microsoft.com/help/4341569 +[4100997 Cumulative Update 9 for SQL Server 2016 SP1]:https://support.microsoft.com/help/4100997 +[4077064 Cumulative Update 8 for SQL Server 2016 SP1]:https://support.microsoft.com/help/4077064 +[4057119 Cumulative Update 7 for SQL Server 2016 SP1]:https://support.microsoft.com/help/4057119 +[4037354 Cumulative Update 6 for SQL Server 2016 SP1]:https://support.microsoft.com/help/4037354 +[4040714 Cumulative Update 5 for SQL Server 2016 SP1]:https://support.microsoft.com/help/4040714 +[4024305 Cumulative Update 4 for SQL Server 2016 SP1]:https://support.microsoft.com/help/4024305 +[4019916 Cumulative Update 3 for SQL Server 2016 SP1]:https://support.microsoft.com/help/4019916 +[4013106 Cumulative Update 2 for SQL Server 2016 SP1]:https://support.microsoft.com/help/4013106 +[3208177 Cumulative update 1 for SQL Server 2016 Service Pack 1]:https://support.microsoft.com/help/3208177 +[4458842 Security update for SQL Server 2016 SP1 GDR: August 22, 2018]:https://support.microsoft.com/help/4458842 +[4293801 Security update for SQL Server 2016 SP1 GDR: August 14, 2018]:https://support.microsoft.com/help/4293801 +[4057118 Description of the security update for SQL Server 2016 SP1 GDR: January 3, 2018]:https://support.microsoft.com/help/4057118 +[4019089 Description of the security update for SQL Server 2016 Service Pack 1 GDR: August 8, 2017]:https://support.microsoft.com/help/4019089 +[3210089 GDR update package for SQL Server 2016 SP1]:https://support.microsoft.com/help/3210089 +[3207512 Important update for SQL Server 2016 SP1 Reporting Services]:https://support.microsoft.com/help/3207512 +[3182545 SQL Server 2016 Service Pack 1 release information]:https://support.microsoft.com/help/3182545 +[4058559 Security update for SQL Server 2016 CU: January 6, 2018]:https://support.microsoft.com/help/4058559 +[4037357 Cumulative Update 9 for SQL Server 2016]:https://support.microsoft.com/help/4037357 +[4040713 Cumulative Update 8 for SQL Server 2016]:https://support.microsoft.com/help/4040713 +[4024304 Cumulative Update 7 for SQL Server 2016]:https://support.microsoft.com/help/4024304 +[4019914 Cumulative Update 6 for SQL Server 2016]:https://support.microsoft.com/help/4019914 +[4013105 Cumulative Update 5 for SQL Server 2016]:https://support.microsoft.com/help/4013105 +[3205052 Cumulative update 4 for SQL Server 2016]:https://support.microsoft.com/help/3205052 +[4058560 Description of the security update for SQL Server 2016 GDR: January 6, 2018]:https://support.microsoft.com/help/4058560 +[4019088 Security update for SQL Server 2016 RTM GDR: August 8, 2017]:https://support.microsoft.com/help/4019088 +[3210111 GDR update package for SQL Server 2016 RTM]:https://support.microsoft.com/help/3210111 +[3210110 On-demand hotfix update package for SQL Server 2016 CU3]:https://support.microsoft.com/help/3210110 +[3194717 MS16-136: Description of the security update for SQL Server 2016 CU]:https://support.microsoft.com/help/3194717 +[3205413 Cumulative update 3 for SQL Server 2016]:https://support.microsoft.com/help/3205413 +[3199171 On-demand hotfix update package for SQL Server 2016 CU2]:https://support.microsoft.com/help/3199171 +[3195813 On-demand hotfix update package for SQL Server 2016 CU2]:https://support.microsoft.com/help/3195813 +[3182270 Cumulative Update 2 for SQL Server 2016]:https://support.microsoft.com/help/3182270 +[3164674 Cumulative Update 1 for SQL Server 2016]:https://support.microsoft.com/help/3164674 +[3194716 MS16-136: Description of the security update for SQL Server 2016 GDR]:https://support.microsoft.com/help/3194716 +[3179258 Processing a partition causes data loss on other partitions after the database is restored in SQL Server 2016 (1200)]:http://support.microsoft.com/help/3179258 +[3164398 Critical update for SQL Server 2016 MSVCRT prerequisites]:https://support.microsoft.com/help/3164398 +[Microsoft SQL Server 2016 RTM]:https://www.microsoft.com/evalcenter/evaluate-sql-server-2016 + + + +## Microsoft SQL Server 2014 Builds + +All SQL Server 2014 CU downloads: [Catalog Update Microsoft SQL Server 2014](http://www.catalog.update.microsoft.com/Search.aspx?q=sql%20server%202014) + +Here is the latest output from `SELECT @@VERSION` for SQL Server 2014 Developer Edition on Windows: + +``` +Microsoft SQL Server 2014 (SP3-CU1) (KB4470220) - 12.0.6205.1 (X64) + Nov 30 2018 02:59:03 + Copyright (c) Microsoft Corporation + Developer Edition (64-bit) on … ``` -| Build | File version | KB / Description | Release Date | Build Date | -|---------------|-------------------|---------------------------------------------------------------------------------|--------------|------------| -| 13.0.1400.361 | 2015.130.1400.361 | [Microsoft SQL Server 2016 Community Technology Release Candidate 3 (RC3)] | 2016-04-15 | 2016-04-09 | -| 13.0.1300.275 | 2015.130.1300.275 | Microsoft SQL Server 2016 Community Technology Release Candidate 2 (RC2) | 2016-04-01 | 2016-03-26 | -| 13.0.1200.242 | 2015.130.1200.242 | Microsoft SQL Server 2016 Community Technology Release Candidate 1 (RC1) | 2016-03-18 | 2016-03-10 | -| 13.0.1100.288 | 2015.130.1100.288 | Microsoft SQL Server 2016 Community Technology Release Candidate 0 (RC0) | 2016-03-07 | 2016-02-29 | -| 13.0.1000.281 | 2015.130.1000.281 | Microsoft SQL Server 2016 Community Technology Preview 3.3 (CTP3.3) | 2016-02-03 | 2016-01-28 | -| 13.0.900.73 | 2015.130.900.73 | Microsoft SQL Server 2016 Community Technology Preview 3.2 (CTP3.2) | 2015-12-17 | 2015-12-10 | -| 13.0.801.12 | 2015.130.801.12 | Microsoft SQL Server 2016 Community Technology Preview 3.1 (CTP3.1 refresh) | 2015-12-05 | 2015-12-01 | -| 13.0.801.111 | 2015.130.801.111 | Microsoft SQL Server 2016 Community Technology Preview 3.1 (CTP3.1) | 2015-11-30 | 2015-11-21 | -| 13.0.700.242 | 2015.130.700.242 | Microsoft SQL Server 2016 Community Technology Preview 3.0 (CTP3.0) | 2015-10-29 | 2015-10-26 | -| 13.0.600.65 | 2015.130.600.65 | Microsoft SQL Server 2016 Community Technology Preview 2.4 (CTP2.4) | 2015-09-30 | 2015-09-20 | -| 13.0.500.53 | 2015.130.500.53 | Microsoft SQL Server 2016 Community Technology Preview 2.3 (CTP2.3) | 2015-08-28 | 2015-08-24 | -| 13.0.407.1 | 2015.130.407.1 | Microsoft SQL Server 2016 Community Technology Preview 2.2 (CTP2.2) | 2015-07-29 | 2015-07-22 | -| 13.0.400.91 | 2015.130.400.91 | Microsoft SQL Server 2016 Community Technology Preview 2.2 (CTP2.2) [withdrawn] | 2015-07-22 | 2015-07-16 | -| 13.0.300.44 | 2015.130.300.444 | Microsoft SQL Server 2016 Community Technology Preview 2.1 (CTP2.1) | 2015-06-14 | 2015-06-12 | -| 13.0.200.172 | 2015.130.200.172 | Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2) | 2015-05-26 | 2015-05-21 | - -[Microsoft SQL Server 2016 Community Technology Release Candidate 3 (RC3)]:https://www.microsoft.com/en-us/evalcenter/evaluate-sql-server-2016 - - -## Microsoft SQL Server 2014 Builds -The official knowledge base article for Service Pack 1 has been moved to [KB3058865](https://support.microsoft.com/en-us/kb/3058865), and you can download it [here](https://www.microsoft.com/en-us/download/details.aspx?id=46694). The original blog posts are [here](http://blogs.msdn.com/b/sqlreleaseservices/archive/2015/04/16/sql-server-2014-service-pack-1-has-released.aspx) and [here](http://blogs.technet.com/b/dataplatforminsider/archive/2015/05/15/sql-server-2014-service-pack-1-now-available-for-download.aspx); the new one is [here](http://blogs.technet.com/b/dataplatforminsider/archive/2015/05/15/sql-server-2014-service-pack-1-now-available-for-download.aspx). - -Service Pack 1 includes a number of enhancements; these were the most interesting to us: - - - The behavior of trace flags 1236 (see [KB2926217](https://support.microsoft.com/en-us/kb/2926217)) and 9024 (see [KB2809338](http://support.microsoft.com/kb/2809338)) will now be enabled by default. - - Several fixes for buffer pool extensions, including the ability to use instant file initialization. - - Improvements in columnstore performance and new extended event coverage for columnstore inserts. - - -| Build | File version | KB / Description | Release Date | -|--------------|------------------|------------------------------------------------------------------------------------------------------------------------------------|--------------| -| 12.0.4449.0 | 2014.120.4449.0 | [3144524 Cumulative Update 6 for SQL Server 2014 Service Pack 1] | 2016-04-18 | -| 12.0.4439.1 | 2014.120.4439.1 | [3130926 Cumulative Update 5 (CU5) for SQL Server 2014 Service Pack 1] | 2016-02-22 | -| 12.0.4436.0 | 2014.120.4436.0 | [3106660 Cumulative update package 4 (CU4) for SQL Server 2014 Service Pack 1] | 2015-12-21 | -| 12.0.4427.24 | 2014.120.4427.24 | [3094221 Cumulative update package 3 (CU3) for SQL Server 2014 Service Pack 1] | 2015-10-21 | -| 12.0.4422.0 | 2014.120.4422.0 | [3075950 Cumulative update package 2 (CU2) for SQL Server 2014 Service Pack 1] | 2015-08-17 | -| 12.0.4416.0 | 2014.120.4416.0 | [3067839 Cumulative update package 1 (CU1) for SQL Server 2014 Service Pack 1] | 2015-06-22 | -| 12.0.4213.0 | 2014.120.4213.0 | [MS15-058: Description of the nonsecurity update for SQL Server 2014 Service Pack 1 GDR: July 14, 2015] | 2015-07-14 | -| 12.0.4100.1 | 2014.120.4100.1 | [SQL Server 2014 Service Pack 1 (SP1)] | 2015-05-14 | -| 12.0.4050.0 | 2014.120.4050.0 | SQL Server 2014 Service Pack 1 (SP1) [withdrawn] | 2015-04-15 | -| 12.0.2560.0 | 2014.120.2550.0 | [3106659 Cumulative update package 11 (CU11) for SQL Server 2014] | 2015-12-21 | -| 12.0.2556.4 | 2014.120.2556.4 | [3094220 Cumulative update package 10 (CU10) for SQL Server 2014] | 2015-10-20 | -| 12.0.2553 | 2014.120.2553.0 | [3075949 Cumulative update package 9 (CU9) for SQL Server 2014] | 2015-08-17 | -| 12.0.2548 | 2014.120.2548.0 | [MS15-058: Description of the security update for SQL Server 2014 QFE: July 14, 2015] | 2015-07-14 | -| 12.0.2546 | 2014.120.2546.0 | [3067836 Cumulative update package 8 (CU8) for SQL Server 2014] | 2015-06-22 | -| 12.0.2506 | 2014.120.2506.0 | [3063054 Update enables Premium Storage support for Data files on Azure Storage and resolves backup failures] | 2015-05-19 | -| 12.0.2505 | 2014.120.2505.0 | [3052167 FIX: Error 1205 when you execute parallel query that contains outer join operators in SQL Server 2014] | 2015-05-19 | -| 12.0.2504 | 2014.120.2504.0 | [2999809 FIX: Poor performance when a query contains table joins in SQL Server 2014] | 2015-05-05 | -| 12.0.2504 | 2014.120.2504.0 | [3058512 FIX: Unpivot Transformation task changes null to zero or empty strings in SSIS 2014] | 2015-05-05 | -| 12.0.2495 | 2014.120.2495.0 | [3046038 Cumulative update package 7 (CU7) for SQL Server 2014] | 2015-04-23 | -| 12.0.2488 | 2014.120.2488.0 | [3048751 FIX: Deadlock cannot be resolved automatically when you run a SELECT query that can result in a parallel batch-mode scan] | 2015-04-01 | -| 12.0.2485 | 2014.120.2485.0 | [3043788 An on-demand hotfix update package is available for SQL Server 2014] | 2015-03-16 | -| 12.0.2480 | 2014.120.2480.0 | [3031047 Cumulative update package 6 (CU6) for SQL Server 2014] | 2015-02-16 | -| 12.0.2474 | 2014.120.2474.0 | [3034679 FIX: AlwaysOn availability groups are reported as NOT SYNCHRONIZING] | 2015-05-15 | -| 12.0.2472 | 2014.120.2472.0 | [3032087 FIX: Cannot show requested dialog after you connect to the latest SQL Database Update V12 (preview) with SQL Server 2014] | 2015-01-28 | -| 12.0.2464 | 2014.120.2464.0 | [3024815 Large query compilation waits on RESOURCE_SEMAPHORE_QUERY_COMPILE in SQL Server 2014] | 2015-01-05 | -| 12.0.2456 | 2014.120.2456.0 | [3011055 Cumulative update package 5 (CU5) for SQL Server 2014] | 2014-12-18 | -| 12.0.2436 | 2014.120.2436.0 | [3014867 FIX: "Remote hardening failure" exception cannot be caught and a potential data loss when you use SQL Server 2014] | 2014-11-27 | -| 12.0.2430 | 2014.120.2430.0 | [2999197 Cumulative update package 4 (CU4) for SQL Server 2014] | 2014-10-21 | -| 12.0.2423 | 2014.120.2423.0 | [3007050 FIX: RTDATA_LIST waits when you run natively stored procedures that encounter expected failures in SQL Server 2014] | 2014-10-22 | -| 12.0.2405 | 2014.120.2405.0 | [2999809 FIX: Poor performance when a query contains table joins in SQL Server 2014] | 2014-09-25 | -| 12.0.2402 | 2014.120.2402.0 | [2984923 Cumulative update package 3 (CU3) for SQL Server 2014] | 2014-08-18 | -| 12.0.2381 | 2014.120.2381.0 | [2977316 MS14-044: Description of the security update for SQL Server 2014 (QFE)] | 2014-08-12 | -| 12.0.2370 | 2014.120.2370.0 | [2967546 Cumulative update package 2 (CU2) for SQL Server 2014] | 2014-06-27 | -| 12.0.2342 | 2014.120.2342.0 | [2931693 Cumulative update package 1 (CU1) for SQL Server 2014] | 2014-04-21 | -| 12.0.2269 | 2014.120.2269.0 | [3045324 MS15-058: Description of the security update for SQL Server 2014 GDR: July 14, 2015] | 2015-07-14 | -| 12.0.2254 | 2014.120.2254.0 | [2977315 MS14-044: Description of the security update for SQL Server 2014 (GDR)] | 2014-08-12 | -| 12.0.2000 | 2014.120.2000.8 | SQL Server 2014 RTM | 2014-04-01 | -| 12.0.1524 | 2014.120.1524.0 | Microsoft SQL Server 2014 Community Technology Preview 2 (CTP2) | 2013-10-15 | -| 11.0.9120 | 2013.110.9120.0 | Microsoft SQL Server 2014 Community Technology Preview 1 (CTP1) | 2013-06-25 | - -[3144524 Cumulative Update 6 for SQL Server 2014 Service Pack 1]:https://support.microsoft.com/en-us/kb/3144524 +| Build | File version | Branch | Type | KB / Description | Release Date | Fixes | Public | Size, Mb | +|--------------|------------------|--------|------|------------------------------------------------------------------------------------------------------------------------------------|--------------|------:|-------:|---------:| +| 12.0.6205.1 | 2014.120.6205.1 | SP3 | CU | [4470220 Cumulative Update 1 for SQL Server 2014 SP3] | 2018-12-12 | 16 | 13 | 601 | +| 12.0.6024.0 | 2014.120.6024.0 | SP3 | SP | [4022619 SQL Server 2014 Service Pack 3 release information] | 2018-10-30 | 31 | 6 | 791 | +| 12.0.5605.1 | 2014.120.5605.1 | SP2 | SP | [4469137 Cumulative Update 15 for SQL Server 2014 SP2] | 2018-12-12 | 8 | 7 | 679 | +| 12.0.5600.1 | 2014.120.5600.1 | SP2 | CU | [4459860 Cumulative Update 14 for SQL Server 2014 SP2] | 2018-10-15 | 8 | 6 | 678 | +| 12.0.5590.1 | 2014.120.5590.1 | SP2 | CU | [4456287 Cumulative Update 13 for SQL Server 2014 SP2] | 2018-08-27 | 4 | 4 | 679 | +| 12.0.5589.7 | 2014.120.5589.7 | SP2 | CU | [4130489 Cumulative Update 12 for SQL Server 2014 SP2] | 2018-06-18 | 27 | 16 | 678 | +| 12.0.5579.0 | 2014.120.5579.0 | SP2 | CU | [4077063 Cumulative Update 11 for SQL Server 2014 SP2] | 2018-03-19 | 12 | 10 | 677 | +| 12.0.5571.0 | 2014.120.5571.0 | SP2 | CU | [4052725 Cumulative Update 10 for SQL Server 2014 SP2] | 2018-01-16 | 5 | 4 | 676 | +| 12.0.5563.0 | 2014.120.5563.0 | SP2 | CU | [4055557 Cumulative Update 9 for SQL Server 2014 SP2] | 2017-12-18 | 8 | 7 | 540 | +| 12.0.5557.0 | 2014.120.5557.0 | SP2 | CU | [4037356 Cumulative Update 8 for SQL Server 2014 SP2] | 2017-10-17 | 15 | 8 | 539 | +| 12.0.5556.0 | 2014.120.5556.0 | SP2 | CU | [4032541 Cumulative Update 7 for SQL Server 2014 SP2] | 2017-08-28 | 15 | 8 | 539 | +| 12.0.5553.0 | 2014.120.5553.0 | SP2 | CU | [4019094 Cumulative Update 6 for SQL Server 2014 SP2] | 2017-08-08 | 29 | 29 | 539 | +| 12.0.5546.0 | 2014.120.5546.0 | SP2 | CU | [4013098 Cumulative Update 5 for SQL Server 2014 SP2] | 2017-04-18 | 24 | 21 | 557 | +| 12.0.5540.0 | 2014.120.5540.0 | SP2 | CU | [4010394 Cumulative Update 4 for SQL Server 2014 SP2] | 2017-02-21 | 30 | 27 | 555 | +| 12.0.5538.0 | 2014.120.5538.0 | SP2 | CU | [3204388 Cumulative update 3 for SQL Server 2014 SP2] | 2016-12-28 | 44 | 39 | 555 | +| 12.0.5532.0 | 2014.120.5532.0 | SP2 | CU | [3194718 MS16-136: Description of the security update for SQL Server 2014 Service Pack 2 CU: November 8, 2016] | 2016-11-08 | 1 | 1 | 551 | +| 12.0.5522.0 | 2014.120.5522.0 | SP2 | CU | [3188778 Cumulative update 2 for SQL Server 2014 SP2] | 2016-10-18 | 18 | 18 | 550 | +| 12.0.5511.0 | 2014.120.5511.0 | SP2 | CU | [3178925 Cumulative update 1 for SQL Server 2014 SP2] | 2016-08-24 | 45 | 36 | 556 | +| 12.0.5214.6 | 2014.120.5214.6 | SP2 | GDR | [4057120 Security update for SQL Server 2014 Service Pack 2 GDR: January 16, 2018] **CVE-2017-5715,2017-5753,2017-5754** | 2018-01-16 | | | 960 | +| 12.0.5207.0 | 2014.120.5207.0 | SP2 | GDR | [4019093 Description of the security update for SQL Server 2014 Service Pack 2 GDR: August 8, 2017] | 2017-08-08 | 1 | 1 | 413 | +| 12.0.5203.0 | 2014.120.5203.0 | SP2 | GDR | [3194714 MS16-136: Description of the security update for SQL Server 2014 Service Pack 2 GDR: November 8, 2016] | 2016-11-08 | 1 | 1 | 463 | +| 12.0.5000.0 | 2014.120.5000.0 | SP2 | SP | [3171021 SQL Server 2014 Service Pack 2 release information] | 2016-07-11 | 133 | 55 | 681 | +| 12.0.4522.0 | 2014.120.4522.0 | SP1 | CU | [4019099 Cumulative Update 13 for SQL Server 2014 SP1] **Last CU for 2014 SP1** | 2017-08-08 | 11 | 11 | 577 | +| 12.0.4511.0 | 2014.120.4511.0 | SP1 | CU | [4017793 Cumulative Update 12 for SQL Server 2014 SP1] | 2017-04-17 | 12 | 11 | 573 | +| 12.0.4502.0 | 2014.120.4502.0 | SP1 | CU | [4010392 Cumulative Update 11 for SQL Server 2014 SP1] | 2017-02-21 | 15 | 15 | 571 | +| 12.0.4491.0 | 2014.120.4491.0 | SP1 | CU | [3204399 Cumulative update package 10 for SQL Server 2014 Service Pack 1] | 2016-12-28 | 33 | 27 | 571 | +| 12.0.4487.0 | 2014.120.4487.0 | SP1 | CU | [3194722 MS16-136: Description of the security update for SQL Server 2014 Service Pack 1 CU: November 8, 2016] | 2016-11-08 | 1 | 1 | 569 | +| 12.0.4474.0 | 2014.120.4474.0 | SP1 | CU | [3186964 Cumulative update 9 for SQL Server 2014 SP1] | 2016-10-18 | 14 | 14 | 912 | +| 12.0.4468.0 | 2014.120.4468.0 | SP1 | CU | [3174038 Cumulative update 8 for SQL Server 2014 SP1] | 2016-08-16 | 38 | 38 | 929 | +| 12.0.4463.0 | 2014.120.4463.0 | SP1 | COD | [3174370 COD Hotfix A memory leak occurs when you use Azure Storage in SQL Server 2014] | 2016-08-04 | 1 | 1 | | +| 12.0.4459.0 | 2014.120.4459.0 | SP1 | CU | [3162659 Cumulative Update 7 for SQL Server 2014 SP1] | 2016-06-20 | 35 | 33 | 928 | +| 12.0.4457.0 | 2014.120.4457.0 | SP1 | CU | [3167392 Cumulative Update 6 for SQL Server 2014 Service Pack 1] **Refresh** | 2016-05-31 | 44 | 43 | 927 | +| 12.0.4452.0 | 2014.120.4452.0 | SP1 | COD | 3147825 COD Hotfix **Deprecated** | 2016-04-05 | 1 | 1 | | +| 12.0.4449.0 | 2014.120.4449.0 | SP1 | CU | [3144524 Cumulative update 6 for SQL Server 2014 SP1 (deprecated)] **Deprecated** | 2016-04-18 | N/A | N/A | | +| 12.0.4439.1 | 2014.120.4439.1 | SP1 | CU | [3130926 Cumulative Update 5 (CU5) for SQL Server 2014 Service Pack 1] | 2016-02-22 | 20 | 20 | 924 | +| 12.0.4437.0 | 2014.120.4437.0 | SP1 | COD | [3130999 On-demand hotfix update package for SQL Server 2014 Service Pack 1 Cumulative Update 4] | 2016-02-05 | 2 | 2 | | +| 12.0.4436.0 | 2014.120.4436.0 | SP1 | CU | [3106660 Cumulative update package 4 (CU4) for SQL Server 2014 Service Pack 1] | 2015-12-21 | 34 | 34 | | +| 12.0.4433.0 | 2014.120.4433.0 | SP1 | COD | [3119148 FIX: Error 3203 occurs and a SQL Server 2014 backup job can't restart after a network failure] | 2015-12-09 | 1 | 1 | | +| 12.0.4432.0 | 2014.120.4432.0 | SP1 | COD | [3097972 FIX: Error when your stored procedure calls another stored procedure on a linked server in SQL Server 2014] | 2015-11-19 | 3 | 3 | | +| 12.0.4427.24 | 2014.120.4427.24 | SP1 | CU | [3094221 Cumulative update package 3 (CU3) for SQL Server 2014 Service Pack 1] | 2015-10-21 | 40 | 36 | | +| 12.0.4422.0 | 2014.120.4422.0 | SP1 | CU | [3075950 Cumulative update package 2 (CU2) for SQL Server 2014 Service Pack 1] | 2015-08-17 | 51 | 46 | | +| 12.0.4419.0 | 2014.120.4419.0 | SP1 | COD | [3078973 An on-demand hotfix update package is available for SQL Server 2014 SP1] | 2015-07-24 | 13 | 13 | | +| 12.0.4416.0 | 2014.120.4416.0 | SP1 | CU | [3067839 Cumulative update package 1 (CU1) for SQL Server 2014 Service Pack 1] | 2015-06-22 | 141 | 121 | | +| 12.0.4237.0 | 2014.120.4237.0 | SP1 | GDR | [4019091 Security update for SQL Server 2014 Service Pack 1 GDR: August 8, 2017] | 2017-08-08 | 1 | 1 | 391 | +| 12.0.4232.0 | 2014.120.4232.0 | SP1 | CU | [3194720 MS16-136: Description of the security update for SQL Server 2014 Service Pack 1 GDR: November 8, 2016] | 2016-11-08 | 1 | 1 | 371 | +| 12.0.4219.0 | 2014.120.4219.0 | SP1 | GDR | [3098852 SP1 GDR TLS 1.2 Update] | 2016-01-29 | | | | +| 12.0.4213.0 | 2014.120.4213.0 | SP1 | GDR | [3070446 MS15-058: Description of the nonsecurity update for SQL Server 2014 Service Pack 1 GDR: July 14, 2015] | 2015-07-14 | | | 381 | +| 12.0.4100.1 | 2014.120.4100.1 | SP1 | SP | [3058865 SQL Server 2014 Service Pack 1 release information] | 2015-05-14 | 29 | 29 | 1025 | +| 12.0.4050.0 | 2014.120.4050.0 | SP1 | SP | SQL Server 2014 Service Pack 1 (SP1) (initial) | 2015-04-15 | | | | +| 12.0.2569.0 | 2014.120.2569.0 | RTM | CU | [3158271 Cumulative update package 14 (CU14) for SQL Server 2014] **Last CU for 2014 RTM** | 2016-06-20 | 21 | 20 | 1049 | +| 12.0.2568.0 | 2014.120.2568.0 | RTM | CU | [3144517 Cumulative update package 13 (CU13) for SQL Server 2014] | 2016-04-18 | 30 | 30 | 1047 | +| 12.0.2564.0 | 2014.120.2564.0 | RTM | CU | [3130923 Cumulative update package 12 (CU12) for SQL Server 2014] | 2016-02-22 | 7 | 7 | 1045 | +| 12.0.2560.0 | 2014.120.2550.0 | RTM | CU | [3106659 Cumulative update package 11 (CU11) for SQL Server 2014] | 2015-12-21 | 19 | 19 | | +| 12.0.2556.4 | 2014.120.2556.4 | RTM | CU | [3094220 Cumulative update package 10 (CU10) for SQL Server 2014] | 2015-10-20 | 33 | 30 | | +| 12.0.2553.0 | 2014.120.2553.0 | RTM | CU | [3075949 Cumulative update package 9 (CU9) for SQL Server 2014] | 2015-08-17 | 31 | 30 | | +| 12.0.2548.0 | 2014.120.2548.0 | RTM | CU | [3045323 MS15-058: Description of the security update for SQL Server 2014 QFE: July 14, 2015] | 2015-07-14 | 1 | 1 | 1038 | +| 12.0.2546.0 | 2014.120.2546.0 | RTM | CU | [3067836 Cumulative update package 8 (CU8) for SQL Server 2014] | 2015-06-22 | 40 | 38 | | +| 12.0.2506.0 | 2014.120.2506.0 | RTM | COD | [3063054 Update enables Premium Storage support for Data files on Azure Storage and resolves backup failures] | 2015-05-19 | 1 | 1 | | +| 12.0.2505.0 | 2014.120.2505.0 | RTM | COD | [3052167 FIX: Error 1205 when you execute parallel query that contains outer join operators in SQL Server 2014] | 2015-05-19 | 1 | 1 | | +| 12.0.2504.0 | 2014.120.2504.0 | RTM | COD | [2999809 FIX: Poor performance when a query contains table joins in SQL Server 2014] | 2015-05-05 | 2 | 2 | | +| 12.0.2504.0 | 2014.120.2504.0 | RTM | COD | [3058512 FIX: Unpivot Transformation task changes null to zero or empty strings in SSIS 2014] | 2015-05-05 | | | | +| 12.0.2495.0 | 2014.120.2495.0 | RTM | CU | [3046038 Cumulative update package 7 (CU7) for SQL Server 2014] | 2015-04-23 | 47 | 41 | | +| 12.0.2488.0 | 2014.120.2488.0 | RTM | COD | [3048751 FIX: Deadlock cannot be resolved automatically when you run a SELECT query that can result in a parallel batch-mode scan] | 2015-04-01 | 1 | 1 | | +| 12.0.2485.0 | 2014.120.2485.0 | RTM | COD | [3043788 An on-demand hotfix update package is available for SQL Server 2014] | 2015-03-16 | 1 | 1 | | +| 12.0.2480.0 | 2014.120.2480.0 | RTM | CU | [3031047 Cumulative update package 6 (CU6) for SQL Server 2014] | 2015-02-16 | 64 | 55 | | +| 12.0.2474.0 | 2014.120.2474.0 | RTM | COD | [3034679 FIX: AlwaysOn availability groups are reported as NOT SYNCHRONIZING] | 2015-02-04 | 1 | 1 | | +| 12.0.2472.0 | 2014.120.2472.0 | RTM | COD | [3032087 FIX: Cannot show requested dialog after you connect to the latest SQL Database Update V12 (preview) with SQL Server 2014] | 2015-01-28 | 1 | 1 | | +| 12.0.2464.0 | 2014.120.2464.0 | RTM | COD | [3024815 Large query compilation waits on RESOURCE_SEMAPHORE_QUERY_COMPILE in SQL Server 2014] | 2015-01-05 | 1 | 1 | | +| 12.0.2456.0 | 2014.120.2456.0 | RTM | CU | [3011055 Cumulative update package 5 (CU5) for SQL Server 2014] | 2014-12-18 | 54 | 48 | | +| 12.0.2436.0 | 2014.120.2436.0 | RTM | COD | [3014867 FIX: "Remote hardening failure" exception cannot be caught and a potential data loss when you use SQL Server 2014] | 2014-11-27 | 1 | 1 | | +| 12.0.2430.0 | 2014.120.2430.0 | RTM | CU | [2999197 Cumulative update package 4 (CU4) for SQL Server 2014] | 2014-10-21 | 66 | 54 | | +| 12.0.2423.0 | 2014.120.2423.0 | RTM | COD | [3007050 FIX: RTDATA_LIST waits when you run natively stored procedures that encounter expected failures in SQL Server 2014] | 2014-10-22 | | | | +| 12.0.2405.0 | 2014.120.2405.0 | RTM | COD | [2999809 FIX: Poor performance when a query contains table joins in SQL Server 2014] | 2014-09-25 | | | | +| 12.0.2402.0 | 2014.120.2402.0 | RTM | CU | [2984923 Cumulative update package 3 (CU3) for SQL Server 2014] | 2014-08-18 | 40 | 32 | | +| 12.0.2381.0 | 2014.120.2381.0 | RTM | QFE | [2977316 MS14-044: Description of the security update for SQL Server 2014 (QFE)] | 2014-08-12 | 1 | 1 | 602 | +| 12.0.2370.0 | 2014.120.2370.0 | RTM | CU | [2967546 Cumulative update package 2 (CU2) for SQL Server 2014] | 2014-06-27 | 52 | 48 | | +| 12.0.2342.0 | 2014.120.2342.0 | RTM | CU | [2931693 Cumulative update package 1 (CU1) for SQL Server 2014] | 2014-04-21 | 121 | 114 | | +| 12.0.2271.0 | 2014.120.2271.0 | RTM | GDR | [TLS 1.2 support for SQL Server 2014 RTM] | 2016-01-29 | 3 | 3 | | +| 12.0.2269.0 | 2014.120.2269.0 | RTM | GDR | [3045324 MS15-058: Description of the security update for SQL Server 2014 GDR: July 14, 2015] | 2015-07-14 | 2 | 2 | 388 | +| 12.0.2254.0 | 2014.120.2254.0 | RTM | GDR | [2977315 MS14-044: Description of the security update for SQL Server 2014 (GDR)] | 2014-08-12 | 1 | 1 | 183 | +| 12.0.2000.8 | 2014.120.2000.8 | RTM | RTM | SQL Server 2014 RTM | 2014-04-01 | - | - | | +| 12.0.1524.0 | 2014.120.1524.0 | CTP | CTP | Microsoft SQL Server 2014 Community Technology Preview 2 (CTP2) | 2013-10-15 | | | | +| 11.0.9120.0 | 2013.110.9120.0 | CTP | CTP | Microsoft SQL Server 2014 Community Technology Preview 1 (CTP1) | 2013-06-25 | | | | + +[4470220 Cumulative Update 1 for SQL Server 2014 SP3]:https://support.microsoft.com/help/4470220 +[4022619 SQL Server 2014 Service Pack 3 release information]:https://support.microsoft.com/help/4022619 +[4469137 Cumulative Update 15 for SQL Server 2014 SP2]:https://support.microsoft.com/help/4469137 +[4459860 Cumulative Update 14 for SQL Server 2014 SP2]:https://support.microsoft.com/help/4459860 +[4456287 Cumulative Update 13 for SQL Server 2014 SP2]:https://support.microsoft.com/help/4456287 +[4130489 Cumulative Update 12 for SQL Server 2014 SP2]:https://support.microsoft.com/help/4130489 +[4077063 Cumulative Update 11 for SQL Server 2014 SP2]:https://support.microsoft.com/help/4077063 +[4052725 Cumulative Update 10 for SQL Server 2014 SP2]:https://support.microsoft.com/help/4052725/cumulative-update-10-for-sql-server-2014-sp2 +[4055557 Cumulative Update 9 for SQL Server 2014 SP2]:https://support.microsoft.com/help/4055557/cumulative-update-9-for-sql-server-2014-sp2 +[4037356 Cumulative Update 8 for SQL Server 2014 SP2]:https://support.microsoft.com/help/4037356/cumulative-update-8-for-sql-server-2014-sp2 +[4032541 Cumulative Update 7 for SQL Server 2014 SP2]:https://support.microsoft.com/help/4032541/cumulative-update-7-for-sql-server-2014-sp2 +[4019094 Cumulative Update 6 for SQL Server 2014 SP2]:https://support.microsoft.com/help/4019094/cumulative-update-6-for-sql-server-2014-sp2 +[4013098 Cumulative Update 5 for SQL Server 2014 SP2]:https://support.microsoft.com/help/4013098/cumulative-update-5-for-sql-server-2014-sp2 +[4010394 Cumulative Update 4 for SQL Server 2014 SP2]:https://support.microsoft.com/help/4010394/cumulative-update-4-for-sql-server-2014-sp2 +[3204388 Cumulative update 3 for SQL Server 2014 SP2]:https://support.microsoft.com/help/3204388 +[3194718 MS16-136: Description of the security update for SQL Server 2014 Service Pack 2 CU: November 8, 2016]:https://support.microsoft.com/help/3194718 +[3188778 Cumulative update 2 for SQL Server 2014 SP2]:https://support.microsoft.com/help/3188778 +[3178925 Cumulative update 1 for SQL Server 2014 SP2]:https://support.microsoft.com/help/3178925 +[3194714 MS16-136: Description of the security update for SQL Server 2014 Service Pack 2 GDR: November 8, 2016]:https://support.microsoft.com/en-us/help/3194714/ +[3171021 SQL Server 2014 Service Pack 2 release information]:https://support.microsoft.com/help/3171021 +[4019099 Cumulative Update 13 for SQL Server 2014 SP1]:https://support.microsoft.com/help/4019099/cumulative-update-13-for-sql-server-2014-sp1 +[4017793 Cumulative Update 12 for SQL Server 2014 SP1]:https://support.microsoft.com/help/4017793/cumulative-update-12-for-sql-server-2014-sp1 +[4010392 Cumulative Update 11 for SQL Server 2014 SP1]:https://support.microsoft.com/help/4010392/cumulative-update-11-for-sql-server-2014-sp1 +[3204399 Cumulative update package 10 for SQL Server 2014 Service Pack 1]:https://support.microsoft.com/help/3204399 +[3194722 MS16-136: Description of the security update for SQL Server 2014 Service Pack 1 CU: November 8, 2016]:https://support.microsoft.com/en-us/kb/3194722 +[3186964 Cumulative update 9 for SQL Server 2014 SP1]:https://support.microsoft.com/help/3186964 +[4057120 Security update for SQL Server 2014 Service Pack 2 GDR: January 16, 2018]:https://support.microsoft.com/help/4057120 +[4019093 Description of the security update for SQL Server 2014 Service Pack 2 GDR: August 8, 2017]:https://support.microsoft.com/help/4019093/ +[3174038 Cumulative update 8 for SQL Server 2014 SP1]:https://support.microsoft.com/en-us/kb/3174038 +[3174370 COD Hotfix A memory leak occurs when you use Azure Storage in SQL Server 2014]:https://support.microsoft.com/en-us/kb/3174370 +[3162659 Cumulative Update 7 for SQL Server 2014 SP1]:https://support.microsoft.com/en-us/kb/3162659 +[3167392 Cumulative Update 6 for SQL Server 2014 Service Pack 1]:https://support.microsoft.com/en-us/kb/3167392 +[3144524 Cumulative update 6 for SQL Server 2014 SP1 (deprecated)]:https://support.microsoft.com/en-us/kb/3144524 [3130926 Cumulative Update 5 (CU5) for SQL Server 2014 Service Pack 1]:https://support.microsoft.com/en-us/kb/3130926 +[3130999 On-demand hotfix update package for SQL Server 2014 Service Pack 1 Cumulative Update 4]:https://support.microsoft.com/en-us/kb/3130999 [3106660 Cumulative update package 4 (CU4) for SQL Server 2014 Service Pack 1]:https://support.microsoft.com/en-us/kb/3106660 +[3119148 FIX: Error 3203 occurs and a SQL Server 2014 backup job can't restart after a network failure]:http://support.microsoft.com/kb/3119148 +[3097972 FIX: Error when your stored procedure calls another stored procedure on a linked server in SQL Server 2014]:http://support.microsoft.com/kb/3097972 [3094221 Cumulative update package 3 (CU3) for SQL Server 2014 Service Pack 1]:http://support.microsoft.com/kb/3094221 [3075950 Cumulative update package 2 (CU2) for SQL Server 2014 Service Pack 1]:http://support.microsoft.com/kb/3075950 +[3078973 An on-demand hotfix update package is available for SQL Server 2014 SP1]:http://support.microsoft.com/kb/3078973 [3067839 Cumulative update package 1 (CU1) for SQL Server 2014 Service Pack 1]:http://support.microsoft.com/kb/3067839 -[MS15-058: Description of the nonsecurity update for SQL Server 2014 Service Pack 1 GDR: July 14, 2015]:https://support.microsoft.com/en-us/kb/3070446 -[SQL Server 2014 Service Pack 1 (SP1)]:http://www.microsoft.com/en-us/download/details.aspx?id=46694 +[4019091 Security update for SQL Server 2014 Service Pack 1 GDR: August 8, 2017]:http://support.microsoft.com/help/4019091 +[3194720 MS16-136: Description of the security update for SQL Server 2014 Service Pack 1 GDR: November 8, 2016]:https://support.microsoft.com/en-us/kb/3194720 +[3098852 SP1 GDR TLS 1.2 Update]:https://support.microsoft.com/en-us/hotfix/kbhotfix?kbnum=3098852&kbln=en-us +[3070446 MS15-058: Description of the nonsecurity update for SQL Server 2014 Service Pack 1 GDR: July 14, 2015]:https://support.microsoft.com/en-us/kb/3070446 +[3058865 SQL Server 2014 Service Pack 1 release information]:https://support.microsoft.com/en-us/kb/3058865 +[3158271 Cumulative update package 14 (CU14) for SQL Server 2014]:https://support.microsoft.com/en-us/kb/3158271 +[3144517 Cumulative update package 13 (CU13) for SQL Server 2014]:https://support.microsoft.com/en-us/kb/3144517 +[3130923 Cumulative update package 12 (CU12) for SQL Server 2014]:https://support.microsoft.com/en-us/kb/3130923 [3106659 Cumulative update package 11 (CU11) for SQL Server 2014]:http://support.microsoft.com/kb/3106659 [3094220 Cumulative update package 10 (CU10) for SQL Server 2014]:http://support.microsoft.com/kb/3094220 [3075949 Cumulative update package 9 (CU9) for SQL Server 2014]:http://support.microsoft.com/kb/3075949 -[MS15-058: Description of the security update for SQL Server 2014 QFE: July 14, 2015]:https://support.microsoft.com/en-us/kb/3045323 +[3045323 MS15-058: Description of the security update for SQL Server 2014 QFE: July 14, 2015]:https://support.microsoft.com/en-us/kb/3045323 [3067836 Cumulative update package 8 (CU8) for SQL Server 2014]:http://support.microsoft.com/kb/3067836 [3063054 Update enables Premium Storage support for Data files on Azure Storage and resolves backup failures]:http://support.microsoft.com/kb/3063054 [3052167 FIX: Error 1205 when you execute parallel query that contains outer join operators in SQL Server 2014]:http://support.microsoft.com/kb/3052167 @@ -353,92 +858,130 @@ Service Pack 1 includes a number of enhancements; these were the most interestin [2977316 MS14-044: Description of the security update for SQL Server 2014 (QFE)]:http://support.microsoft.com/kb/2977316 [2967546 Cumulative update package 2 (CU2) for SQL Server 2014]:http://support.microsoft.com/kb/2967546 [2931693 Cumulative update package 1 (CU1) for SQL Server 2014]:http://support.microsoft.com/kb/2931693 +[TLS 1.2 support for SQL Server 2014 RTM]:https://support.microsoft.com/en-us/hotfix/kbhotfix?kbnum=3098856&kbln=en-us [3045324 MS15-058: Description of the security update for SQL Server 2014 GDR: July 14, 2015]:https://support.microsoft.com/en-us/kb/3045324 [2977315 MS14-044: Description of the security update for SQL Server 2014 (GDR)]:http://support.microsoft.com/kb/2977315 -## Microsoft SQL Server 2012 Builds - -| Build | File version | KB / Description | Release Date | -|---------------|------------------|----------------------------------------------------------------------------------------------------------------------------------------|--------------| -| 11.0.6537.0 | 2011.110.6537.0 | [3152635 Cumulative update package 3 for SQL Server 2012 SP3] | 2016-05-16 | -| 11.0.5649.0 | 2011.110.5649.0 | [3152637 Cumulative update package 12 for SQL Server 2012 SP2] | 2016-05-16 | -| 11.0.6523.0 | 2011.110.6523.0 | [3137746 Cumulative update package 2 for SQL Server 2012 SP3] | 2016-03-21 | -| 11.0.5646.0 | 2011.110.5646.2 | [3137745 Cumulative update package 11 for SQL Server 2012 SP2] | 2016-03-21 | -| 11.0.6518.0 | 2011.110.6518.0 | [3123299 Cumulative update package 1 for SQL Server 2012 SP3] | 2016-01-19 | -| 11.0.5644.2 | 2011.110.5644.2 | [3120313 Cumulative update package 10 for SQL Server 2012 SP2] | 2016-01-19 | -| 11.3.6020.0 | 2011.110.6020.0 | [3072779 Microsoft SQL Server 2012 Service Pack 3 (SP3)] | 2015-11-21 | -| 11.0.5641.0 | 2011.110.5641.0 | [3098512 Cumulative update package 9 for SQL Server 2012 SP2] | 2015-11-16 | -| 11.0.5636 | 2011.110.5636.3 | [3097636 FIX: Performance decrease when application with connection pooling frequently connects or disconnects in SQL Server] | 2015-09-22 | -| 11.0.5634 | 2011.110.5634.0 | [3082561 Cumulative update package 8 (CU8) for SQL Server 2012 Service Pack 2] | 2015-09-21 | -| 11.0.5629 | 2011.110.5629.0 | [3087872 FIX: Access violations when you use the FileTable feature in SQL Server 2012] | 2015-08-31 | -| 11.0.5623 | 2011.110.5623.0 | [3072100 Cumulative update package 7 (CU7) for SQL Server 2012 Service Pack 2] | 2015-07-20 | -| 11.0.5613 | 2011.110.5613.0 | [3045319 MS15-058: Description of the security update for SQL Server 2012 Service Pack 2 QFE: July 14, 2015] | 2015-07-14 | -| 11.0.5592 | 2011.110.5592.0 | [3052468 Cumulative update package 6 (CU6) for SQL Server 2012 Service Pack 2] | 2015-05-19 | -| 11.0.5582 | 2011.110.5582.0 | [3037255 Cumulative update package 5 (CU5) for SQL Server 2012 Service Pack 2] | 2015-03-16 | -| 11.0.5571 | 2011.110.5571.0 | [3034679 FIX: AlwaysOn availability groups are reported as NOT SYNCHRONIZING] | 2015-05-15 | -| 11.0.5569 | 2011.110.5569.0 | [3007556 Cumulative update package 4 (CU4) for SQL Server 2012 Service Pack 2] | 2015-01-20 | -| 11.0.5556 | 2011.110.5556.0 | [3002049 Cumulative update package 3 (CU3) for SQL Server 2012 Service Pack 2] | 2014-11-17 | -| 11.0.5548 | 2011.110.5548.0 | [2983175 Cumulative update package 2 (CU2) for SQL Server 2012 Service Pack 2] | 2014-09-15 | -| 11.0.5532 | 2011.110.5532.0 | [2976982 Cumulative update package 1 (CU1) for SQL Server 2012 Service Pack 2] | 2014-07-24 | -| 11.0.5522 | 2011.110.5522.0 | [2969896 FIX: Data loss in clustered index occurs when you run online build index in SQL Server 2012 (Hotfix for SQL2012 SP2)] | 2014-06-20 | -| 11.0.5343 | 2011.110.5343.0 | [3045321 MS15-058: Description of the security update for SQL Server 2012 Service Pack 2 GDR: July 14, 2015] | 2015-07-14 | -| 11.0.5058 | 2011.110.5058.0 | [SQL Server 2012 Service Pack 2 (SP2)] | 2014-06-10 | -| 11.0.3513 | 2011.110.3513.0 | [3045317 MS15-058: Description of the security update for SQL Server 2012 SP1 QFE: July 14, 2015] | 2015-07-14 | -| 11.0.3492 | 2011.110.3492.0 | [3052476 Cumulative update package 16 (CU16) for SQL Server 2012 Service Pack 1] | 2015-05-18 | -| 11.0.3487 | 2011.110.3487.0 | [3038001 Cumulative update package 15 (CU15) for SQL Server 2012 Service Pack 1] | 2015-03-16 | -| 11.0.3486 | 2011.110.3486.0 | [3023636 Cumulative update package 14 (CU14) for SQL Server 2012 Service Pack 1] | 2015-01-19 | -| 11.0.3460 | 2011.110.3460.0 | [2977325 MS14-044: Description of the security update for SQL Server 2012 Service Pack 1 (QFE)] | 2014-08-12 | -| 11.0.3482 | 2011.110.3482.0 | [3002044 Cumulative update package 13 (CU13) for SQL Server 2012 Service Pack 1] | 2014-11-17 | -| 11.0.3470 | 2011.110.3470.0 | [2991533 Cumulative update package 12 (CU12) for SQL Server 2012 Service Pack 1] | 2014-09-15 | -| 11.0.3449 | 2011.110.3449.0 | [2975396 Cumulative update package 11 (CU11) for SQL Server 2012 Service Pack 1] | 2014-07-21 | -| 11.0.3437 | 2011.110.3437.0 | [2969896 FIX: Data loss in clustered index occurs when you run online build index in SQL Server 2012 (Hotfix for SQL2012 SP1)] | 2014-06-10 | -| 11.0.3431 | 2011.110.3431.0 | [2954099 Cumulative update package 10 (CU10) for SQL Server 2012 Service Pack 1] | 2014-05-19 | -| 11.0.3412 | 2011.110.3412.0 | [2931078 Cumulative update package 9 (CU9) for SQL Server 2012 Service Pack 1] | 2014-03-18 | -| 11.0.3401 | 2011.110.3401.0 | [2917531 Cumulative update package 8 (CU8) for SQL Server 2012 Service Pack 1] | 2014-01-20 | -| 11.0.3393 | 2011.110.3393.0 | [2894115 Cumulative update package 7 (CU7) for SQL Server 2012 Service Pack 1] | 2013-11-18 | -| 11.0.3381 | 2011.110.3381.0 | [2874879 Cumulative update package 6 (CU6) for SQL Server 2012 Service Pack 1] | 2013-09-16 | -| 11.0.3373 | 2011.110.3373.0 | [2861107 Cumulative update package 5 (CU5) for SQL Server 2012 Service Pack 1] | 2013-07-16 | -| 11.0.3368 | 2011.110.3368.0 | [2833645 Cumulative update package 4 (CU4) for SQL Server 2012 Service Pack 1] | 2013-05-31 | -| 11.0.3350 | 2011.110.3350.0 | [2832017 FIX: You can’t create or open SSIS projects or maintenance plans after you apply Cumulative Update 3 for SQL Server 2012 SP1] | 2013-04-17 | -| 11.0.3349 | 2011.110.3349.0 | [2812412 Cumulative update package 3 (CU3) for SQL Server 2012 Service Pack 1] | 2013-03-18 | -| 11.0.3339 | 2011.110.3339.0 | [2790947 Cumulative update package 2 (CU2) for SQL Server 2012 Service Pack 1] | 2013-01-25 | -| 11.0.3335 | 2011.110.3335.0 | [2800050 FIX: Component installation process fails after you install SQL Server 2012 SP1] | 2013-01-14 | -| 11.0.3321 | 2011.110.3321.0 | [2765331 Cumulative update package 1 (CU1) for SQL Server 2012 Service Pack 1] | 2012-11-20 | -| 11.0.3156 | 2011.110.3156.0 | [3045318 MS15-058: Description of the security update for SQL Server 2012 SP1 GDR: July 14, 2015] | 2015-07-14 | -| 11.0.3153 | 2011.110.3153.0 | [2977326 MS14-044: Description of the security update for SQL Server 2012 Service Pack 1 (GDR)] | 2014-08-12 | -| 11.0.3128 | 2011.110.3128.0 | [2793634 Windows Installer starts repeatedly after you install SQL Server 2012 SP1] | 2013-01-03 | -| 11.0.3000 | 2011.110.3000.0 | [SQL Server 2012 Service Pack 1 (SP1)] | 2012-11-06 | -| 11.0.2845 | 2011.110.2845.0 | SQL Server 2012 Service Pack 1 Customer Technology Preview 4 (CTP4) | 2012-09-20 | -| 11.0.2809 | 2011.110.2809.24 | SQL Server 2012 Service Pack 1 Customer Technology Preview 3 (CTP3) | 2012-07-05 | -| 11.0.2424 | 2011.110.2424.0 | [2908007 Cumulative update package 11 (CU11) for SQL Server 2012] | 2013-12-17 | -| 11.0.2420 | 2011.110.2420.0 | [2891666 Cumulative update package 10 (CU10) for SQL Server 2012] | 2013-10-21 | -| 11.0.2419 | 2011.110.2419.0 | [2867319 Cumulative update package 9 (CU9) for SQL Server 2012] | 2013-08-21 | -| 11.0.2410 | 2011.110.2410.0 | [2844205 Cumulative update package 8 (CU8) for SQL Server 2012] | 2013-06-18 | -| 11.0.2405 | 2011.110.2405.0 | [2823247 Cumulative update package 7 (CU7) for SQL Server 2012] | 2013-04-15 | -| 11.0.2401 | 2011.110.2401.0 | [2728897 Cumulative update package 6 (CU6) for SQL Server 2012] | 2013-02-18 | -| 11.0.2395 | 2011.110.2395.0 | [2777772 Cumulative update package 5 (CU5) for SQL Server 2012] | 2012-12-18 | -| 11.0.9000 | 2011.110.9000.5 | Microsoft SQL Server 2012 With Power View For Multidimensional Models Customer Technology Preview (CTP3) | 2012-11-27 | -| 11.0.2383 | 2011.110.2383.0 | [2758687 Cumulative update package 4 (CU4) for SQL Server 2012] | 2012-10-18 | -| 11.0.2376 | 2011.110.2376.0 | [Microsoft Security Bulletin MS12-070] | 2012-10-09 | -| 11.0.2332 | 2011.110.2332.0 | [2723749 Cumulative update package 3 (CU3) for SQL Server 2012] | 2012-08-29 | -| 11.0.2325 | 2011.110.2325.0 | [2703275 Cumulative update package 2 (CU2) for SQL Server 2012] | 2012-06-18 | -| 11.0.2316 | 2011.110.2316.0 | [2679368 Cumulative update package 1 (CU1) for SQL Server 2012] | 2012-04-12 | -| 11.0.2218 | 2011.110.2218.0 | [Microsoft Security Bulletin MS12-070] | 2012-10-09 | -| 11.0.2214 | 2011.110.2214.0 | 2685308 FIX: SSAS uses only 20 cores in SQL Server 2012 Business Intelligence | 2012-04-06 | -| 11.0.2100 | 2011.110.2100.60 | SQL Server 2012 RTM | 2012-03-06 | -| 11.0.1913 | 2011.110.1913.37 | Microsoft SQL Server 2012 Release Candidate 1 (RC1) | 2011-12-16 | -| 11.0.1750 | 2011.110.1750.32 | Microsoft SQL Server 2012 Release Candidate 0 (RC0) | 2011-11-17 | -| 11.0.1440 | 2010.110.1440.19 | Microsoft SQL Server 2012 (codename Denali) Community Technology Preview 3 (CTP3) | 2011-07-11 | -| 11.0.1103 | 2010.110.1103.9 | Microsoft SQL Server 2012 (codename Denali) Community Technology Preview 1 (CTP1) | 2010-11-08 | - +## Microsoft SQL Server 2012 Builds + + +All SQL Server 2014 CU downloads: [Catalog Update Microsoft SQL Server 2012](http://www.catalog.update.microsoft.com/Search.aspx?q=sql%20server%202012) + +| Build | File version | Branch | Type | KB / Description | Release Date | +|---------------|------------------|--------|------|----------------------------------------------------------------------------------------------------------------------------------------|--------------| +| 11.0.77462.6 | 2011.110.7462.6 | SP4 | GDR | [4057116 Security Advisory ADV180002 (GDR)] | 2018-01-12 | +| 11.0.7001.0 | 2011.110.7001.0 | SP4 | SP | [4018073 SQL Server 2012 Service Pack 4 release information] | 2017-10-05 | +| 11.0.6607.3 | 2011.110.6607.3 | SP3 | CU | [4016762 Cumulative Update 10 for SQL Server 2012 SP3] | 2017-08-08 | +| 11.0.6598.0 | 2011.110.6598.0 | SP3 | CU | [4016762 Cumulative Update 9 for SQL Server 2012 SP3] | 2017-05-15 | +| 11.0.6594.0 | 2011.110.6594.0 | SP3 | CU | [4013104 Cumulative Update 8 for SQL Server 2012 SP3] | 2017-03-21 | +| 11.0.6579.0 | 2011.110.6579.0 | SP3 | CU | [3205051 Cumulative Update Package 7 for SQL Server 2012 SP3] | 2017-01-18 | +| 11.0.6567.0 | 2011.110.6567.0 | SP3 | COD | [3194724 MS16-136: Description of the security update for SQL Server 2012 Service Pack 3 CU: November 8, 2016] | 2016-11-17 | +| 11.0.6544.0 | 2011.110.6544.0 | SP3 | CU | [3180915 Cumulative update 5 for SQL Server 2012 Service Pack 3] | 2016-09-20 | +| 11.0.6540.0 | 2011.110.6540.0 | SP3 | CU | [3165264 Cumulative Update 4 for SQL Server 2012 SP3] | 2016-07-18 | +| 11.0.6537.0 | 2011.110.6537.0 | SP3 | CU | [3152635 Cumulative update package 3 for SQL Server 2012 SP3] | 2016-05-16 | +| 11.0.6523.0 | 2011.110.6523.0 | SP3 | CU | [3137746 Cumulative update package 2 for SQL Server 2012 SP3] | 2016-03-21 | +| 11.0.6518.0 | 2011.110.6518.0 | SP3 | CU | [3123299 Cumulative update package 1 for SQL Server 2012 SP3] | 2016-01-19 | +| 11.0.6248.0 | 2011.110.6248.0 | SP3 | GDR | [3194721 MS16-136: Description of the security update for SQL Server 2012 Service Pack 3 GDR: November 8, 2016] | 2016-11-08 | +| 11.0.6216.27 | 2011.110.6216.27 | SP3 | GDR | [3135244 TLS 1.2 support for SQL Server 2012 SP3 GDR] | 2016-01-27 | +| 11.3.6020.0 | 2011.110.6020.0 | SP3 | SP | [3072779 Microsoft SQL Server 2012 Service Pack 3 (SP3)] | 2015-11-21 | +| 11.0.5678.0 | 2011.110.5678.0 | SP2 | CU | [3205054 Cumulative Update 16 for SQL Server 2012 SP2] | 2017-01-18 | +| 11.0.5676.0 | 2011.110.5676.0 | SP2 | CU | [3205416 Cumulative update package 15 (CU15) for SQL Server 2012 Service Pack 2] | 2016-11-17 | +| 11.0.5676.0 | 2011.110.5676.0 | SP2 | COD | [3194725 MS16-136: Description of the security update for SQL Server 2012 Service Pack 2 CU: November 8, 2016] | 2016-11-17 | +| 11.0.5657.0 | 2011.110.5657.0 | SP2 | CU | [3180914 Cumulative Update 14 for SQL Server 2012 SP2] | 2016-09-20 | +| 11.0.5655.0 | 2011.110.5655.0 | SP2 | CU | [3165266 Cumulative Update 13 for SQL Server 2012 SP2] | 2016-07-18 | +| 11.0.5649.0 | 2011.110.5649.0 | SP2 | CU | [3152637 Cumulative update package 12 for SQL Server 2012 SP2] | 2016-05-16 | +| 11.0.5646.2 | 2011.110.5646.2 | SP2 | CU | [3137745 Cumulative update package 11 for SQL Server 2012 SP2] | 2016-03-21 | +| 11.0.5644.2 | 2011.110.5644.2 | SP2 | CU | [3120313 Cumulative update package 10 for SQL Server 2012 SP2] | 2016-01-19 | +| 11.0.5641.0 | 2011.110.5641.0 | SP2 | CU | [3098512 Cumulative update package 9 for SQL Server 2012 SP2] | 2015-11-16 | +| 11.0.5636 | 2011.110.5636.3 | SP2 | COD | [3097636 FIX: Performance decrease when application with connection pooling frequently connects or disconnects in SQL Server] | 2015-09-22 | +| 11.0.5634 | 2011.110.5634.0 | SP2 | CU | [3082561 Cumulative update package 8 (CU8) for SQL Server 2012 Service Pack 2] | 2015-09-21 | +| 11.0.5629 | 2011.110.5629.0 | SP2 | COD | [3087872 FIX: Access violations when you use the FileTable feature in SQL Server 2012] | 2015-08-31 | +| 11.0.5623 | 2011.110.5623.0 | SP2 | CU | [3072100 Cumulative update package 7 (CU7) for SQL Server 2012 Service Pack 2] | 2015-07-20 | +| 11.0.5613 | 2011.110.5613.0 | SP2 | COD | [3045319 MS15-058: Description of the security update for SQL Server 2012 Service Pack 2 QFE: July 14, 2015] | 2015-07-14 | +| 11.0.5592 | 2011.110.5592.0 | SP2 | CU | [3052468 Cumulative update package 6 (CU6) for SQL Server 2012 Service Pack 2] | 2015-05-19 | +| 11.0.5582 | 2011.110.5582.0 | SP2 | CU | [3037255 Cumulative update package 5 (CU5) for SQL Server 2012 Service Pack 2] | 2015-03-16 | +| 11.0.5571 | 2011.110.5571.0 | SP2 | COD | [3034679 FIX: AlwaysOn availability groups are reported as NOT SYNCHRONIZING] | 2015-05-15 | +| 11.0.5569 | 2011.110.5569.0 | SP2 | CU | [3007556 Cumulative update package 4 (CU4) for SQL Server 2012 Service Pack 2] | 2015-01-20 | +| 11.0.5556 | 2011.110.5556.0 | SP2 | CU | [3002049 Cumulative update package 3 (CU3) for SQL Server 2012 Service Pack 2] | 2014-11-17 | +| 11.0.5548 | 2011.110.5548.0 | SP2 | CU | [2983175 Cumulative update package 2 (CU2) for SQL Server 2012 Service Pack 2] | 2014-09-15 | +| 11.0.5532 | 2011.110.5532.0 | SP2 | CU | [2976982 Cumulative update package 1 (CU1) for SQL Server 2012 Service Pack 2] | 2014-07-24 | +| 11.0.5522 | 2011.110.5522.0 | SP2 | COD | [2969896 FIX: Data loss in clustered index occurs when you run online build index in SQL Server 2012 (Hotfix for SQL2012 SP2)] | 2014-06-20 | +| 11.0.5388 | 2012.110.5388.0 | SP2 | GDR | [3194719 MS16-136: Description of the security update for SQL Server 2012 Service Pack 2 GDR: November 8, 2016] | 2016-11-08 | +| 11.0.5352 | 2012.110.5352.0 | SP2 | GDR | [3135244 TLS 1.2 support for SQL Server 2012 SP2 GDR] | 2016-01-27 | +| 11.0.5343 | 2011.110.5343.0 | SP2 | GDR | [3045321 MS15-058: Description of the security update for SQL Server 2012 Service Pack 2 GDR: July 14, 2015] | 2015-07-14 | +| 11.0.5058 | 2011.110.5058.0 | SP2 | SP | [SQL Server 2012 Service Pack 2 (SP2)] | 2014-06-10 | +| 11.0.3513 | 2011.110.3513.0 | SP1 | QFE | [3045317 MS15-058: Description of the security update for SQL Server 2012 SP1 QFE: July 14, 2015] | 2015-07-14 | +| 11.0.3492 | 2011.110.3492.0 | SP1 | CU | [3052476 Cumulative update package 16 (CU16) for SQL Server 2012 Service Pack 1] | 2015-05-18 | +| 11.0.3487 | 2011.110.3487.0 | SP1 | CU | [3038001 Cumulative update package 15 (CU15) for SQL Server 2012 Service Pack 1] | 2015-03-16 | +| 11.0.3486 | 2011.110.3486.0 | SP1 | QFE | [3023636 Cumulative update package 14 (CU14) for SQL Server 2012 Service Pack 1] | 2015-01-19 | +| 11.0.3460 | 2011.110.3460.0 | SP1 | COD | [2977325 MS14-044: Description of the security update for SQL Server 2012 Service Pack 1 (QFE)] | 2014-08-12 | +| 11.0.3482 | 2011.110.3482.0 | SP1 | CU | [3002044 Cumulative update package 13 (CU13) for SQL Server 2012 Service Pack 1] | 2014-11-17 | +| 11.0.3470 | 2011.110.3470.0 | SP1 | CU | [2991533 Cumulative update package 12 (CU12) for SQL Server 2012 Service Pack 1] | 2014-09-15 | +| 11.0.3449 | 2011.110.3449.0 | SP1 | CU | [2975396 Cumulative update package 11 (CU11) for SQL Server 2012 Service Pack 1] | 2014-07-21 | +| 11.0.3437 | 2011.110.3437.0 | SP1 | COD | [2969896 FIX: Data loss in clustered index occurs when you run online build index in SQL Server 2012 (Hotfix for SQL2012 SP1)] | 2014-06-10 | +| 11.0.3431 | 2011.110.3431.0 | SP1 | CU | [2954099 Cumulative update package 10 (CU10) for SQL Server 2012 Service Pack 1] | 2014-05-19 | +| 11.0.3412 | 2011.110.3412.0 | SP1 | CU | [2931078 Cumulative update package 9 (CU9) for SQL Server 2012 Service Pack 1] | 2014-03-18 | +| 11.0.3401 | 2011.110.3401.0 | SP1 | CU | [2917531 Cumulative update package 8 (CU8) for SQL Server 2012 Service Pack 1] | 2014-01-20 | +| 11.0.3393 | 2011.110.3393.0 | SP1 | CU | [2894115 Cumulative update package 7 (CU7) for SQL Server 2012 Service Pack 1] | 2013-11-18 | +| 11.0.3381 | 2011.110.3381.0 | SP1 | CU | [2874879 Cumulative update package 6 (CU6) for SQL Server 2012 Service Pack 1] | 2013-09-16 | +| 11.0.3373 | 2011.110.3373.0 | SP1 | CU | [2861107 Cumulative update package 5 (CU5) for SQL Server 2012 Service Pack 1] | 2013-07-16 | +| 11.0.3368 | 2011.110.3368.0 | SP1 | CU | [2833645 Cumulative update package 4 (CU4) for SQL Server 2012 Service Pack 1] | 2013-05-31 | +| 11.0.3350 | 2011.110.3350.0 | SP1 | COD | [2832017 FIX: You can’t create or open SSIS projects or maintenance plans after you apply Cumulative Update 3 for SQL Server 2012 SP1] | 2013-04-17 | +| 11.0.3349 | 2011.110.3349.0 | SP1 | CU | [2812412 Cumulative update package 3 (CU3) for SQL Server 2012 Service Pack 1] | 2013-03-18 | +| 11.0.3339 | 2011.110.3339.0 | SP1 | CU | [2790947 Cumulative update package 2 (CU2) for SQL Server 2012 Service Pack 1] | 2013-01-25 | +| 11.0.3335 | 2011.110.3335.0 | SP1 | COD | [2800050 FIX: Component installation process fails after you install SQL Server 2012 SP1] | 2013-01-14 | +| 11.0.3321 | 2011.110.3321.0 | SP1 | CU | [2765331 Cumulative update package 1 (CU1) for SQL Server 2012 Service Pack 1] | 2012-11-20 | +| 11.0.3156 | 2011.110.3156.0 | SP1 | COD | [3045318 MS15-058: Description of the security update for SQL Server 2012 SP1 GDR: July 14, 2015] | 2015-07-14 | +| 11.0.3153 | 2011.110.3153.0 | SP1 | GDR | [2977326 MS14-044: Description of the security update for SQL Server 2012 Service Pack 1 (GDR)] | 2014-08-12 | +| 11.0.3128 | 2011.110.3128.0 | SP1 | COD | [2793634 Windows Installer starts repeatedly after you install SQL Server 2012 SP1] | 2013-01-03 | +| 11.0.3000 | 2011.110.3000.0 | SP1 | SP | [SQL Server 2012 Service Pack 1 (SP1)] | 2012-11-06 | +| 11.0.2845 | 2011.110.2845.0 | SP1 | CTP | SQL Server 2012 Service Pack 1 Customer Technology Preview 4 (CTP4) | 2012-09-20 | +| 11.0.2809 | 2011.110.2809.24 | SP1 | CTP | SQL Server 2012 Service Pack 1 Customer Technology Preview 3 (CTP3) | 2012-07-05 | +| 11.0.2424 | 2011.110.2424.0 | RTM | CU | [2908007 Cumulative update package 11 (CU11) for SQL Server 2012] | 2013-12-17 | +| 11.0.2420 | 2011.110.2420.0 | RTM | CU | [2891666 Cumulative update package 10 (CU10) for SQL Server 2012] | 2013-10-21 | +| 11.0.2419 | 2011.110.2419.0 | RTM | CU | [2867319 Cumulative update package 9 (CU9) for SQL Server 2012] | 2013-08-21 | +| 11.0.2410 | 2011.110.2410.0 | RTM | CU | [2844205 Cumulative update package 8 (CU8) for SQL Server 2012] | 2013-06-18 | +| 11.0.2405 | 2011.110.2405.0 | RTM | CU | [2823247 Cumulative update package 7 (CU7) for SQL Server 2012] | 2013-04-15 | +| 11.0.2401 | 2011.110.2401.0 | RTM | CU | [2728897 Cumulative update package 6 (CU6) for SQL Server 2012] | 2013-02-18 | +| 11.0.2395 | 2011.110.2395.0 | RTM | CU | [2777772 Cumulative update package 5 (CU5) for SQL Server 2012] | 2012-12-18 | +| 11.0.9000 | 2011.110.9000.5 | RTM | CTP | Microsoft SQL Server 2012 With Power View For Multidimensional Models Customer Technology Preview (CTP3) | 2012-11-27 | +| 11.0.2383 | 2011.110.2383.0 | RTM | CU | [2758687 Cumulative update package 4 (CU4) for SQL Server 2012] | 2012-10-18 | +| 11.0.2376 | 2011.110.2376.0 | RTM | COD | [Microsoft Security Bulletin MS12-070] | 2012-10-09 | +| 11.0.2332 | 2011.110.2332.0 | RTM | CU | [2723749 Cumulative update package 3 (CU3) for SQL Server 2012] | 2012-08-29 | +| 11.0.2325 | 2011.110.2325.0 | RTM | CU | [2703275 Cumulative update package 2 (CU2) for SQL Server 2012] | 2012-06-18 | +| 11.0.2316 | 2011.110.2316.0 | RTM | CU | [2679368 Cumulative update package 1 (CU1) for SQL Server 2012] | 2012-04-12 | +| 11.0.2218 | 2011.110.2218.0 | RTM | COD | [Microsoft Security Bulletin MS12-070] | 2012-10-09 | +| 11.0.2214 | 2011.110.2214.0 | RTM | COD | 2685308 FIX: SSAS uses only 20 cores in SQL Server 2012 Business Intelligence | 2012-04-06 | +| 11.0.2100 | 2011.110.2100.60 | RTM | RTM | SQL Server 2012 RTM | 2012-03-06 | +| 11.0.1913 | 2011.110.1913.37 | RC | RC | Microsoft SQL Server 2012 Release Candidate 1 (RC1) | 2011-12-16 | +| 11.0.1750 | 2011.110.1750.32 | RC | RC | Microsoft SQL Server 2012 Release Candidate 0 (RC0) | 2011-11-17 | +| 11.0.1440 | 2010.110.1440.19 | CTP | CTP | Microsoft SQL Server 2012 (codename Denali) Community Technology Preview 3 (CTP3) | 2011-07-11 | +| 11.0.1103 | 2010.110.1103.9 | CTP | CTP | Microsoft SQL Server 2012 (codename Denali) Community Technology Preview 1 (CTP1) | 2010-11-08 | + +[4057116 Security Advisory ADV180002 (GDR)]:https://support.microsoft.com/en-us/help/4057116/security-update-for-vulnerabilities-in-sql-server +[4018073 SQL Server 2012 Service Pack 4 release information]:https://support.microsoft.com/en-us/help/4018073/sql-server-2012-service-pack-4-release-information +[4016762 Cumulative Update 10 for SQL Server 2012 SP3]:https://support.microsoft.com/en-us/help/4025925/cumulative-update-10-for-sql-server-2012-sp3 +[4016762 Cumulative Update 9 for SQL Server 2012 SP3]:https://support.microsoft.com/en-us/help/4016762/cumulative-update-9-for-sql-server-2012-sp3 +[4013104 Cumulative Update 8 for SQL Server 2012 SP3]:https://support.microsoft.com/en-us/help/4013104/cumulative-update-8-for-sql-server-2012-sp3 +[3205051 Cumulative Update Package 7 for SQL Server 2012 SP3]:https://support.microsoft.com/en-us/help/3205051/cumulative-update-7-for-sql-server-2012-sp3 +[3194724 MS16-136: Description of the security update for SQL Server 2012 Service Pack 3 CU: November 8, 2016]:https://support.microsoft.com/en-us/kb/3194724 +[3194725 MS16-136: Description of the security update for SQL Server 2012 Service Pack 2 CU: November 8, 2016]:https://support.microsoft.com/en-us/kb/3194725 +[3180914 Cumulative Update 14 for SQL Server 2012 SP2]:https://support.microsoft.com/en-us/kb/3180914 +[3180915 Cumulative update 5 for SQL Server 2012 Service Pack 3]:https://support.microsoft.com/en-us/kb/3180915 +[3165264 Cumulative Update 4 for SQL Server 2012 SP3]:https://support.microsoft.com/en-us/kb/3165264 +[3165266 Cumulative Update 13 for SQL Server 2012 SP2]:https://support.microsoft.com/en-us/kb/3165266 [3152635 Cumulative update package 3 for SQL Server 2012 SP3]:https://support.microsoft.com/en-us/kb/3152635 [3152637 Cumulative update package 12 for SQL Server 2012 SP2]:https://support.microsoft.com/en-us/kb/3152637 [3137746 Cumulative update package 2 for SQL Server 2012 SP3]:https://support.microsoft.com/en-us/kb/3137746 [3137745 Cumulative update package 11 for SQL Server 2012 SP2]:https://support.microsoft.com/en-us/kb/3137745 [3123299 Cumulative update package 1 for SQL Server 2012 SP3]:https://support.microsoft.com/en-us/kb/3123299 +[3205416 Cumulative update package 15 (CU15) for SQL Server 2012 Service Pack 2]:https://support.microsoft.com/en-us/kb/3205416 +[3194721 MS16-136: Description of the security update for SQL Server 2012 Service Pack 3 GDR: November 8, 2016]:https://support.microsoft.com/en-us/kb/3194721 +[3135244 TLS 1.2 support for SQL Server 2012 SP3 GDR]:https://support.microsoft.com/en-us/kb/3135244 [3120313 Cumulative update package 10 for SQL Server 2012 SP2]:https://support.microsoft.com/en-us/kb/3120313 [3072779 Microsoft SQL Server 2012 Service Pack 3 (SP3)]:https://support.microsoft.com/en-us/kb/3072779 +[3205054 Cumulative Update 16 for SQL Server 2012 SP2]:https://support.microsoft.com/en-us/help/3205054/cumulative-update-16-for-sql-server-2012-sp2 [3098512 Cumulative update package 9 for SQL Server 2012 SP2]:https://support.microsoft.com/en-us/kb/3098512 [3097636 FIX: Performance decrease when application with connection pooling frequently connects or disconnects in SQL Server]:https://support.microsoft.com/en-us/kb/3097636 [3082561 Cumulative update package 8 (CU8) for SQL Server 2012 Service Pack 2]:http://support.microsoft.com/kb/3082561 @@ -453,6 +996,8 @@ Service Pack 1 includes a number of enhancements; these were the most interestin [2983175 Cumulative update package 2 (CU2) for SQL Server 2012 Service Pack 2]:http://support.microsoft.com/kb/2983175 [2976982 Cumulative update package 1 (CU1) for SQL Server 2012 Service Pack 2]:http://support.microsoft.com/kb/2976982 [2969896 FIX: Data loss in clustered index occurs when you run online build index in SQL Server 2012 (Hotfix for SQL2012 SP2)]:http://support.microsoft.com/kb/2969896 +[3194719 MS16-136: Description of the security update for SQL Server 2012 Service Pack 2 GDR: November 8, 2016]:https://support.microsoft.com/en-us/kb/3194719 +[3135244 TLS 1.2 support for SQL Server 2012 SP2 GDR]:https://support.microsoft.com/en-us/kb/3135244 [3045321 MS15-058: Description of the security update for SQL Server 2012 Service Pack 2 GDR: July 14, 2015]:https://support.microsoft.com/en-us/kb/3045321 [SQL Server 2012 Service Pack 2 (SP2)]:http://www.microsoft.com/en-us/download/details.aspx?id=43340 [3045317 MS15-058: Description of the security update for SQL Server 2012 SP1 QFE: July 14, 2015]:https://support.microsoft.com/en-us/kb/3045317 @@ -495,83 +1040,93 @@ Service Pack 1 includes a number of enhancements; these were the most interestin [2685308 FIX: SSAS uses only 20 cores in SQL Server 2012 Business Intelligence]:http://support.microsoft.com/kb/2685308 -## Microsoft SQL Server 2008 R2 Builds - -| Build | File version | KB / Description | Release Date | -|------------|------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------| -| 10.50.6529 | 2009.100.6529.0 | [3045314 MS15-058: Description of the security update for SQL Server 2008 R2 Service Pack 3 QFE: July 14, 2015] | 2015-07-14 | -| 10.50.6525 | 2009.100.6525.0 | [3033860 An on-demand hotfix update package is available for SQL Server 2008 R2 Service Pack 3 (SP3)] | 2015-02-09 | -| 10.50.6220 | 2009.100.6220.0 | [3045316 MS15-058: Description of the security update for SQL Server 2008 R2 Service Pack 3 GDR: July 14, 2015] | 2015-07-14 | -| 10.50.6000 | 2009.100.6000.0 | [SQL Server 2008 R2 Service Pack 3 (SP3)] | 2014-09-26 | -| 10.50.4339 | 2009.100.4339.0 | [3045312 MS15-058: Description of the security update for SQL Server 2008 R2 Service Pack 2 QFE: July 14, 2015] | 2015-07-14 | -| 10.50.4331 | 2009.100.4331.0 | [2987585 Restore Log with Standby Mode on an Advanced Format disk may cause a 9004 error in SQL Server 2008 R2 or SQL Server 2012] | 2014-08-27 | -| 10.50.4321 | 2009.100.4321.0 | [2977319 MS14-044: Description of the security update for SQL Server 2008 R2 Service Pack 2 (QFE)] | 2014-08-12 | -| 10.50.4319 | 2009.100.4319.0 | [2967540 Cumulative update package 13 (CU13) for SQL Server 2008 R2 Service Pack 2] | 2014-06-30 | -| 10.50.4305 | 2009.100.4305.0 | [2938478 Cumulative update package 12 (CU12) for SQL Server 2008 R2 Service Pack 2] | 2014-04-21 | -| 10.50.4302 | 2009.100.4302.0 | [2926028 Cumulative update package 11 (CU11) for SQL Server 2008 R2 Service Pack 2] | 2014-02-18 | -| 10.50.4297 | 2009.100.4297.0 | [2908087 Cumulative update package 10 (CU10) for SQL Server 2008 R2 Service Pack 2] | 2013-12-16 | -| 10.50.4295 | 2009.100.4295.0 | [2887606 Cumulative update package 9 (CU9) for SQL Server 2008 R2 Service Pack 2] | 2013-10-29 | -| 10.50.4290 | 2009.100.4290.0 | [2871401 Cumulative update package 8 (CU8) for SQL Server 2008 R2 Service Pack 2] | 2013-08-30 | -| 10.50.4286 | 2009.100.4286.0 | [2844090 Cumulative update package 7 (CU7) for SQL Server 2008 R2 Service Pack 2] | 2013-06-17 | -| 10.50.4285 | 2009.100.4285.0 | [2830140 Cumulative update package 6 (CU6) for SQL Server 2008 R2 Service Pack 2 (updated)] | 2013-06-13 | -| 10.50.4279 | 2009.100.4279.0 | 2830140 Cumulative update package 6 (CU6) for SQL Server 2008 R2 Service Pack 2 (replaced) | 2013-04-15 | -| 10.50.4276 | 2009.100.4276.0 | [2797460 Cumulative update package 5 (CU5) for SQL Server 2008 R2 Service Pack 2] | 2013-02-18 | -| 10.50.4270 | 2009.100.4270.0 | [2777358 Cumulative update package 4 (CU4) for SQL Server 2008 R2 Service Pack 2] | 2012-12-17 | -| 10.50.4266 | 2009.100.4266.0 | [2754552 Cumulative update package 3 (CU3) for SQL Server 2008 R2 Service Pack 2] | 2012-10-15 | -| 10.50.4263 | 2009.100.4263.0 | [2740411 Cumulative update package 2 (CU2) for SQL Server 2008 R2 Service Pack 2] | 2012-08-29 | -| 10.50.4260 | 2009.100.4260.0 | [2720425 Cumulative update package 1 (CU1) for SQL Server 2008 R2 Service Pack 2] | 2012-08-01 | -| 10.50.4042 | 2009.100.4042.0 | [3045313 MS15-058: MS15-058: Description of the security update for SQL Server 2008 R2 Service Pack 2 GDR: July 14, 2015] | 2015-07-14 | -| 10.50.4033 | 2009.100.4033.0 | [2977320 MS14-044: Description of the security update for SQL Server 2008 R2 Service Pack 2 (GDR)] | 2014-08-12 | -| 10.50.4000 | 2009.100.4000.0 | [SQL Server 2008 R2 Service Pack 2 (SP2)] | 2012-06-26 | -| 10.50.3720 | 2009.100.3720.0 | SQL Server 2008 R2 Service Pack 2 Community Technology Preview (CTP) | 2012-05-13 | -| 10.50.2881 | 2009.100.2881.0 | [2868244 An on-demand hotfix update package for SQL Server 2008 R2 Service Pack 1] | 2013-08-12 | -| 10.50.2876 | 2009.100.2876.0 | [2855792 Cumulative update package 13 (CU13) for SQL Server 2008 R2 Service Pack 1] | 2013-06-17 | -| 10.50.2875 | 2009.100.2875.0 | [2828727 Cumulative update package 12 (CU12) for SQL Server 2008 R2 Service Pack 1 (updated)] | 2013-06-13 | -| 10.50.2874 | 2009.100.2874.0 | 2828727 Cumulative update package 12 (CU12) for SQL Server 2008 R2 Service Pack 1 (replaced) | 2013-04-15 | -| 10.50.2861 | 2009.100.2861.0 | [Microsoft Security Bulletin MS12-070] | 2012-10-09 | -| 10.50.2869 | 2009.100.2869.0 | [2812683 Cumulative update package 11 (CU11) for SQL Server 2008 R2 Service Pack 1] | 2013-02-18 | -| 10.50.2868 | 2009.100.2868.0 | [2783135 Cumulative update package 10 (CU10) for SQL Server 2008 R2 Service Pack 1] | 2012-12-17 | -| 10.50.2866 | 2009.100.2866.0 | [2756574 Cumulative update package 9 (CU9) for SQL Server 2008 R2 Service Pack 1] | 2012-11-06 | -| 10.50.2861 | 2009.100.2861.0 | [2716439 MS12-070: Description of the security update for SQL Server 2008 R2 Service Pack 1 QFE: October 9, 2012] | 2012-10-09 | -| 10.50.2822 | 2009.100.2822.0 | [2723743 Cumulative update package 8 (CU8) for SQL Server 2008 R2 Service Pack 1] | 2012-08-29 | -| 10.50.2817 | 2009.100.2817.0 | [2703282 Cumulative update package 7 (CU7) for SQL Server 2008 R2 Service Pack 1] | 2012-06-18 | -| 10.50.2811 | 2009.100.2811.0 | [2679367 Cumulative update package 6 (CU6) for SQL Server 2008 R2 Service Pack 1] | 2012-04-16 | -| 10.50.2807 | 2009.100.2807.0 | [2675522 FIX: Access violation when you run DML statements against a table that has partitioned indexes in SQL Server 2008 R2] | 2012-03-12 | -| 10.50.2806 | 2009.100.2806.0 | [2659694 Cumulative update package 5 (CU5) for SQL Server 2008 R2 Service Pack 1] | 2012-02-22 | -| 10.50.2799 | 2009.100.2799.0 | [2633357 FIX: "Non-yielding Scheduler" error might occur when you run a query that uses the CHARINDEX function in SQL Server 2008 R2] | 2012-02-22 | -| 10.50.2796 | 2009.100.2796.0 | [2633146 Cumulative update package 4 (CU4) for SQL Server 2008 R2 Service Pack 1] | 2011-12-20 | -| 10.50.2789 | 2009.100.2789.0 | [2591748 Cumulative update package 3 (CU3) for SQL Server 2008 R2 Service Pack 1] | 2011-10-17 | -| 10.50.2776 | 2009.100.2776.0 | [2606883 FIX: Slow performance when an AFTER trigger runs on a partitioned table in SQL Server 2008 R2] | 2011-10-18 | -| 10.50.2772 | 2009.100.2772.0 | [2567714 Cumulative update package 2 (CU2) for SQL Server 2008 R2 Service Pack 1] | 2011-08-15 | -| 10.50.2769 | 2009.100.2769.0 | [2544793 Cumulative update package 1 (CU1) for SQL Server 2008 R2 Service Pack 1] | 2011-07-18 | -| 10.50.2550 | 2009.100.2550.0 | [Microsoft Security Bulletin MS12-070] | 2012-10-09 | -| 10.50.2500 | 2009.100.2500.0 | [SQL Server 2008 R2 Service Pack 1 (SP1)] | 2011-07-11 | -| 10.50.1817 | 2009.100.1817.0 | [2703280 Cumulative update package 14 (CU14) for SQL Server 2008 R2] | 2012-06-18 | -| 10.50.1815 | 2009.100.1815.0 | [2679366 Cumulative update package 13 (CU13) for SQL Server 2008 R2] | 2012-04-17 | -| 10.50.1810 | 2009.100.1810.0 | [2659692 Cumulative update package 12 (CU12) for SQL Server 2008 R2] | 2012-02-21 | -| 10.50.1809 | 2009.100.1809.0 | [2633145 Cumulative update package 11 (CU11) for SQL Server 2008 R2] | 2012-01-09 | -| 10.50.1807 | 2009.100.1807.0 | [2591746 Cumulative update package 10 (CU10) for SQL Server 2008 R2] | 2011-10-19 | -| 10.50.1804 | 2009.100.1804.0 | [2567713 Cumulative update package 9 (CU9) for SQL Server 2008 R2] | 2011-08-16 | -| 10.50.1800 | 2009.100.1800.0 | [2574699 FIX: Database data files might be incorrectly marked as sparse in SQL Server 2008 R2 or in SQL Server 2008 even when the physical files are marked as not sparse in the file system] | 2011-10-18 | -| 10.50.1797 | 2009.100.1797.0 | [2534352 Cumulative update package 8 (CU8) for SQL Server 2008 R2] | 2011-06-20 | -| 10.50.1790 | 2009.100.1790.0 | [2494086 MS11-049: Description of the security update for SQL Server 2008 R2 QFE: June 14, 2011] | 2011-06-17 | -| 10.50.1777 | 2009.100.1777.0 | [2507770 Cumulative update package 7 (CU7) for SQL Server 2008 R2] | 2011-06-16 | -| 10.50.1769 | 2009.100.1769.0 | [2520808 FIX: Non-yielding scheduler error when you run a query that uses a TVP in SQL Server 2008 or in SQL Server 2008 R2 if SQL Profiler or SQL Server Extended Events is used] | 2011-04-18 | -| 10.50.1765 | 2009.100.1765.0 | [2489376 Cumulative update package 6 (CU6) for SQL Server 2008 R2] | 2011-02-21 | -| 10.50.1753 | 2009.100.1753.0 | [2438347 Cumulative update package 5 (CU5) for SQL Server 2008 R2] | 2010-12-23 | -| 10.50.1746 | 2009.100.1746.0 | [2345451 Cumulative update package 4 (CU4) for SQL Server 2008 R2] | 2010-10-18 | -| 10.50.1734 | 2009.100.1734.0 | [2261464 Cumulative update package 3 (CU3) for SQL Server 2008 R2] | 2010-08-20 | -| 10.50.1720 | 2009.100.1720.0 | [2072493 Cumulative update package 2 (CU2) for SQL Server 2008 R2] | 2010-06-25 | -| 10.50.1702 | 2009.100.1702.0 | [981355 Cumulative update package 1 (CU1) for SQL Server 2008 R2] | 2010-05-18 | -| 10.50.1617 | 2009.100.1617.0 | [2494088 MS11-049: Description of the security update for SQL Server 2008 R2 GDR: June 14, 2011] | 2011-06-14 | -| 10.50.1600 | 2009.100.1600.1 | SQL Server 2008 R2 RTM | 2010-04-21 | -| 10.50.1352 | 2009.100.1352.12 | Microsoft SQL Server 2008 R2 November Community Technology Preview (CTP) | 2009-11-12 | -| 10.50.1092 | 2009.100.1092.20 | Microsoft SQL Server 2008 R2 August Community Technology Preview (CTP) | 2009-06-30 | - + +## Microsoft SQL Server 2008 R2 Builds + +### All SQL Server 2008 R2 CU downloads +[Catalog Update Microsoft SQL Server 2008 R2]:http://www.catalog.update.microsoft.com/Search.aspx?q=sql%20server%202008%20R2 + +| Build | File version | KB / Description | Release Date | +|---------------|------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------| +| 10.50.6542 | 2009.100.6542.0 | [3146034 Intermittent service terminations occur after you install any SQL Server 2008 or SQL Server 2008 R2 versions from KB3135244] | 2016-03-03 | +| 10.50.6537 | 2009.100.6537.0 | [3135244 TLS 1.2 support for SQL Server 2008 R2 SP3] | 2016-01-27 | +| 10.50.6529 | 2009.100.6529.0 | [3045314 MS15-058: Description of the security update for SQL Server 2008 R2 Service Pack 3 QFE: July 14, 2015] | 2015-07-14 | +| 10.50.6525 | 2009.100.6525.0 | [3033860 An on-demand hotfix update package is available for SQL Server 2008 R2 Service Pack 3 (SP3)] | 2015-02-09 | +| 10.50.6220 | 2009.100.6220.0 | [3045316 MS15-058: Description of the security update for SQL Server 2008 R2 Service Pack 3 GDR: July 14, 2015] | 2015-07-14 | +| 10.50.6000.34 | 2009.100.6000.34 | [SQL Server 2008 R2 Service Pack 3 (SP3)] | 2014-09-26 | +| 10.50.4343 | 2009.100.4343.0 | [3135244 TLS 1.2 support for SQL Server 2008 R2 SP2 (IA-64 only)] | 2016-01-27 | +| 10.50.4339 | 2009.100.4339.0 | [3045312 MS15-058: Description of the security update for SQL Server 2008 R2 Service Pack 2 QFE: July 14, 2015] | 2015-07-14 | +| 10.50.4331 | 2009.100.4331.0 | [2987585 Restore Log with Standby Mode on an Advanced Format disk may cause a 9004 error in SQL Server 2008 R2 or SQL Server 2012] | 2014-08-27 | +| 10.50.4321 | 2009.100.4321.0 | [2977319 MS14-044: Description of the security update for SQL Server 2008 R2 Service Pack 2 (QFE)] | 2014-08-12 | +| 10.50.4319 | 2009.100.4319.0 | [2967540 Cumulative update package 13 (CU13) for SQL Server 2008 R2 Service Pack 2] | 2014-06-30 | +| 10.50.4305 | 2009.100.4305.0 | [2938478 Cumulative update package 12 (CU12) for SQL Server 2008 R2 Service Pack 2] | 2014-04-21 | +| 10.50.4302 | 2009.100.4302.0 | [2926028 Cumulative update package 11 (CU11) for SQL Server 2008 R2 Service Pack 2] | 2014-02-18 | +| 10.50.4297 | 2009.100.4297.0 | [2908087 Cumulative update package 10 (CU10) for SQL Server 2008 R2 Service Pack 2] | 2013-12-16 | +| 10.50.4295 | 2009.100.4295.0 | [2887606 Cumulative update package 9 (CU9) for SQL Server 2008 R2 Service Pack 2] | 2013-10-29 | +| 10.50.4290 | 2009.100.4290.0 | [2871401 Cumulative update package 8 (CU8) for SQL Server 2008 R2 Service Pack 2] | 2013-08-30 | +| 10.50.4286 | 2009.100.4286.0 | [2844090 Cumulative update package 7 (CU7) for SQL Server 2008 R2 Service Pack 2] | 2013-06-17 | +| 10.50.4285 | 2009.100.4285.0 | [2830140 Cumulative update package 6 (CU6) for SQL Server 2008 R2 Service Pack 2 (updated)] | 2013-06-13 | +| 10.50.4279 | 2009.100.4279.0 | 2830140 Cumulative update package 6 (CU6) for SQL Server 2008 R2 Service Pack 2 (replaced) | 2013-04-15 | +| 10.50.4276 | 2009.100.4276.0 | [2797460 Cumulative update package 5 (CU5) for SQL Server 2008 R2 Service Pack 2] | 2013-02-18 | +| 10.50.4270 | 2009.100.4270.0 | [2777358 Cumulative update package 4 (CU4) for SQL Server 2008 R2 Service Pack 2] | 2012-12-17 | +| 10.50.4266 | 2009.100.4266.0 | [2754552 Cumulative update package 3 (CU3) for SQL Server 2008 R2 Service Pack 2] | 2012-10-15 | +| 10.50.4263 | 2009.100.4263.0 | [2740411 Cumulative update package 2 (CU2) for SQL Server 2008 R2 Service Pack 2] | 2012-08-29 | +| 10.50.4260 | 2009.100.4260.0 | [2720425 Cumulative update package 1 (CU1) for SQL Server 2008 R2 Service Pack 2] | 2012-08-01 | +| 10.50.4042 | 2009.100.4042.0 | [3045313 MS15-058: MS15-058: Description of the security update for SQL Server 2008 R2 Service Pack 2 GDR: July 14, 2015] | 2015-07-14 | +| 10.50.4033 | 2009.100.4033.0 | [2977320 MS14-044: Description of the security update for SQL Server 2008 R2 Service Pack 2 (GDR)] | 2014-08-12 | +| 10.50.4000 | 2009.100.4000.0 | [SQL Server 2008 R2 Service Pack 2 (SP2)] | 2012-06-26 | +| 10.50.3720 | 2009.100.3720.0 | SQL Server 2008 R2 Service Pack 2 Community Technology Preview (CTP) | 2012-05-13 | +| 10.50.2881 | 2009.100.2881.0 | [2868244 An on-demand hotfix update package for SQL Server 2008 R2 Service Pack 1] | 2013-08-12 | +| 10.50.2876 | 2009.100.2876.0 | [2855792 Cumulative update package 13 (CU13) for SQL Server 2008 R2 Service Pack 1] | 2013-06-17 | +| 10.50.2875 | 2009.100.2875.0 | [2828727 Cumulative update package 12 (CU12) for SQL Server 2008 R2 Service Pack 1 (updated)] | 2013-06-13 | +| 10.50.2874 | 2009.100.2874.0 | 2828727 Cumulative update package 12 (CU12) for SQL Server 2008 R2 Service Pack 1 (replaced) | 2013-04-15 | +| 10.50.2861 | 2009.100.2861.0 | [Microsoft Security Bulletin MS12-070] | 2012-10-09 | +| 10.50.2869 | 2009.100.2869.0 | [2812683 Cumulative update package 11 (CU11) for SQL Server 2008 R2 Service Pack 1] | 2013-02-18 | +| 10.50.2868 | 2009.100.2868.0 | [2783135 Cumulative update package 10 (CU10) for SQL Server 2008 R2 Service Pack 1] | 2012-12-17 | +| 10.50.2866 | 2009.100.2866.0 | [2756574 Cumulative update package 9 (CU9) for SQL Server 2008 R2 Service Pack 1] | 2012-11-06 | +| 10.50.2861 | 2009.100.2861.0 | [2716439 MS12-070: Description of the security update for SQL Server 2008 R2 Service Pack 1 QFE: October 9, 2012] | 2012-10-09 | +| 10.50.2822 | 2009.100.2822.0 | [2723743 Cumulative update package 8 (CU8) for SQL Server 2008 R2 Service Pack 1] | 2012-08-29 | +| 10.50.2817 | 2009.100.2817.0 | [2703282 Cumulative update package 7 (CU7) for SQL Server 2008 R2 Service Pack 1] | 2012-06-18 | +| 10.50.2811 | 2009.100.2811.0 | [2679367 Cumulative update package 6 (CU6) for SQL Server 2008 R2 Service Pack 1] | 2012-04-16 | +| 10.50.2807 | 2009.100.2807.0 | [2675522 FIX: Access violation when you run DML statements against a table that has partitioned indexes in SQL Server 2008 R2] | 2012-03-12 | +| 10.50.2806 | 2009.100.2806.0 | [2659694 Cumulative update package 5 (CU5) for SQL Server 2008 R2 Service Pack 1] | 2012-02-22 | +| 10.50.2799 | 2009.100.2799.0 | [2633357 FIX: "Non-yielding Scheduler" error might occur when you run a query that uses the CHARINDEX function in SQL Server 2008 R2] | 2012-02-22 | +| 10.50.2796 | 2009.100.2796.0 | [2633146 Cumulative update package 4 (CU4) for SQL Server 2008 R2 Service Pack 1] | 2011-12-20 | +| 10.50.2789 | 2009.100.2789.0 | [2591748 Cumulative update package 3 (CU3) for SQL Server 2008 R2 Service Pack 1] | 2011-10-17 | +| 10.50.2776 | 2009.100.2776.0 | [2606883 FIX: Slow performance when an AFTER trigger runs on a partitioned table in SQL Server 2008 R2] | 2011-10-18 | +| 10.50.2772 | 2009.100.2772.0 | [2567714 Cumulative update package 2 (CU2) for SQL Server 2008 R2 Service Pack 1] | 2011-08-15 | +| 10.50.2769 | 2009.100.2769.0 | [2544793 Cumulative update package 1 (CU1) for SQL Server 2008 R2 Service Pack 1] | 2011-07-18 | +| 10.50.2550 | 2009.100.2550.0 | [Microsoft Security Bulletin MS12-070] | 2012-10-09 | +| 10.50.2500 | 2009.100.2500.0 | [SQL Server 2008 R2 Service Pack 1 (SP1)] | 2011-07-11 | +| 10.50.1817 | 2009.100.1817.0 | [2703280 Cumulative update package 14 (CU14) for SQL Server 2008 R2] | 2012-06-18 | +| 10.50.1815 | 2009.100.1815.0 | [2679366 Cumulative update package 13 (CU13) for SQL Server 2008 R2] | 2012-04-17 | +| 10.50.1810 | 2009.100.1810.0 | [2659692 Cumulative update package 12 (CU12) for SQL Server 2008 R2] | 2012-02-21 | +| 10.50.1809 | 2009.100.1809.0 | [2633145 Cumulative update package 11 (CU11) for SQL Server 2008 R2] | 2012-01-09 | +| 10.50.1807 | 2009.100.1807.0 | [2591746 Cumulative update package 10 (CU10) for SQL Server 2008 R2] | 2011-10-19 | +| 10.50.1804 | 2009.100.1804.0 | [2567713 Cumulative update package 9 (CU9) for SQL Server 2008 R2] | 2011-08-16 | +| 10.50.1800 | 2009.100.1800.0 | [2574699 FIX: Database data files might be incorrectly marked as sparse in SQL Server 2008 R2 or in SQL Server 2008 even when the physical files are marked as not sparse in the file system] | 2011-10-18 | +| 10.50.1797 | 2009.100.1797.0 | [2534352 Cumulative update package 8 (CU8) for SQL Server 2008 R2] | 2011-06-20 | +| 10.50.1790 | 2009.100.1790.0 | [2494086 MS11-049: Description of the security update for SQL Server 2008 R2 QFE: June 14, 2011] | 2011-06-17 | +| 10.50.1777 | 2009.100.1777.0 | [2507770 Cumulative update package 7 (CU7) for SQL Server 2008 R2] | 2011-06-16 | +| 10.50.1769 | 2009.100.1769.0 | [2520808 FIX: Non-yielding scheduler error when you run a query that uses a TVP in SQL Server 2008 or in SQL Server 2008 R2 if SQL Profiler or SQL Server Extended Events is used] | 2011-04-18 | +| 10.50.1765 | 2009.100.1765.0 | [2489376 Cumulative update package 6 (CU6) for SQL Server 2008 R2] | 2011-02-21 | +| 10.50.1753 | 2009.100.1753.0 | [2438347 Cumulative update package 5 (CU5) for SQL Server 2008 R2] | 2010-12-23 | +| 10.50.1746 | 2009.100.1746.0 | [2345451 Cumulative update package 4 (CU4) for SQL Server 2008 R2] | 2010-10-18 | +| 10.50.1734 | 2009.100.1734.0 | [2261464 Cumulative update package 3 (CU3) for SQL Server 2008 R2] | 2010-08-20 | +| 10.50.1720 | 2009.100.1720.0 | [2072493 Cumulative update package 2 (CU2) for SQL Server 2008 R2] | 2010-06-25 | +| 10.50.1702 | 2009.100.1702.0 | [981355 Cumulative update package 1 (CU1) for SQL Server 2008 R2] | 2010-05-18 | +| 10.50.1617 | 2009.100.1617.0 | [2494088 MS11-049: Description of the security update for SQL Server 2008 R2 GDR: June 14, 2011] | 2011-06-14 | +| 10.50.1600.1 | 2009.100.1600.1 | SQL Server 2008 R2 RTM | 2010-04-21 | +| 10.50.1352 | 2009.100.1352.12 | Microsoft SQL Server 2008 R2 November Community Technology Preview (CTP) | 2009-11-12 | +| 10.50.1092 | 2009.100.1092.20 | Microsoft SQL Server 2008 R2 August Community Technology Preview (CTP) | 2009-06-30 | + +[3146034 Intermittent service terminations occur after you install any SQL Server 2008 or SQL Server 2008 R2 versions from KB3135244]:http://support.microsoft.com/en-us/kb/3146034 +[3135244 TLS 1.2 support for SQL Server 2008 R2 SP3]:http://support.microsoft.com/en-us/kb/3135244 [3045314 MS15-058: Description of the security update for SQL Server 2008 R2 Service Pack 3 QFE: July 14, 2015]:http://support.microsoft.com/kb/3045314 [3033860 An on-demand hotfix update package is available for SQL Server 2008 R2 Service Pack 3 (SP3)]:http://support.microsoft.com/kb/3033860 [3045316 MS15-058: Description of the security update for SQL Server 2008 R2 Service Pack 3 GDR: July 14, 2015]:http://support.microsoft.com/kb/3045316 [SQL Server 2008 R2 Service Pack 3 (SP3)]:http://www.microsoft.com/en-us/download/details.aspx?id=44271 +[3135244 TLS 1.2 support for SQL Server 2008 R2 SP2 (IA-64 only)]:http://support.microsoft.com/en-us/kb/3135244 [3045312 MS15-058: Description of the security update for SQL Server 2008 R2 Service Pack 2 QFE: July 14, 2015]:http://support.microsoft.com/kb/3045312 [2987585 Restore Log with Standby Mode on an Advanced Format disk may cause a 9004 error in SQL Server 2008 R2 or SQL Server 2012]:http://support.microsoft.com/kb/2987585 [2977319 MS14-044: Description of the security update for SQL Server 2008 R2 Service Pack 2 (QFE)]:http://support.microsoft.com/kb/2977319 @@ -630,102 +1185,109 @@ Service Pack 1 includes a number of enhancements; these were the most interestin [2494088 MS11-049: Description of the security update for SQL Server 2008 R2 GDR: June 14, 2011]:http://support.microsoft.com/kb/2494088 -## Microsoft SQL Server 2008 Builds - -| Build | File version | KB / Description | Release Date | -|------------|------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------| -| 10.00.6535 | 2007.100.6535.0 | [3045308 MS15-058: Description of the security update for SQL Server 2008 Service Pack 4 QFE: July 14, 2015] | 2015-07-14 | -| 10.00.6526 | 2007.100.6526.0 | [3034373 An on-demand hotfix update package is available for SQL Server 2008 Service Pack 4 (SP4)] | 2015-02-09 | -| 10.00.6241 | 2007.100.6241.0 | [3045311 MS15-058: Description of the security update for SQL Server 2008 Service Pack 4 GDR: July 14, 2015] | 2015-07-14 | -| 10.00.6000 | 2007.100.6000.0 | [SQL Server 2008 Service Pack 4 (SP4)] | 2014-09-30 | -| 10.00.5890 | 2007.100.5890.0 | [3045303 MS15-058: Description of the security update for SQL Server 2008 Service Pack 3 QFE: July 14, 2015] | 2015-07-14 | -| 10.00.5869 | 2007.100.5869.0 | [2977322 MS14-044: Description of the security update for SQL Server 2008 SP3 (QFE)] | 2014-08-12 | -| 10.00.5867 | 2007.100.5867.0 | [2877204 FIX: Error 8985 when you run the "dbcc shrinkfile" statement by using the logical name of a file in SQL Server 2008 R2 or SQL Server 2008] | 2014-07-02 | -| 10.00.5861 | 2007.100.5861.0 | [2958696 Cumulative update package 17 (CU17) for SQL Server 2008 Service Pack 3] | 2014-05-19 | -| 10.00.5852 | 2007.100.5852.0 | [2936421 Cumulative update package 16 (CU16) for SQL Server 2008 Service Pack 3] | 2014-03-17 | -| 10.00.5850 | 2007.100.5850.0 | [2923520 Cumulative update package 15 (CU15) for SQL Server 2008 Service Pack 3] | 2014-01-20 | -| 10.00.5848 | 2007.100.5848.0 | [2893410 Cumulative update package 14 (CU14) for SQL Server 2008 Service Pack 3] | 2013-11-18 | -| 10.00.5846 | 2007.100.5846.0 | [2880350 Cumulative update package 13 (CU13) for SQL Server 2008 Service Pack 3] | 2013-09-16 | -| 10.00.5844 | 2007.100.5844.0 | [2863205 Cumulative update package 12 (CU12) for SQL Server 2008 Service Pack 3] | 2013-07-16 | -| 10.00.5841 | 2007.100.5841.0 | [2834048 Cumulative update package 11 (CU11) for SQL Server 2008 Service Pack 3 (updated)] | 2013-06-13 | -| 10.00.5840 | 2007.100.5840.0 | 2834048 Cumulative update package 11 (CU11) for SQL Server 2008 Service Pack 3 (replaced) | 2013-05-20 | -| 10.00.5835 | 2007.100.5835.0 | [2814783 Cumulative update package 10 (CU10) for SQL Server 2008 Service Pack 3] | 2013-03-18 | -| 10.00.5829 | 2007.100.5829.0 | [2799883 Cumulative update package 9 (CU9) for SQL Server 2008 Service Pack 3] | 2013-01-23 | -| 10.00.5828 | 2007.100.5828.0 | [2771833 Cumulative update package 8 (CU8) for SQL Server 2008 Service Pack 3] | 2012-11-19 | -| 10.00.5826 | 2007.100.5826.0 | [2716435 Microsoft Security Bulletin MS12-070] | 2012-10-09 | -| 10.00.5794 | 2007.100.5794.0 | [2738350 Cumulative update package 7 (CU7) for SQL Server 2008 Service Pack 3] | 2012-09-21 | -| 10.00.5788 | 2007.100.5788.0 | [2715953 Cumulative update package 6 (CU6) for SQL Server 2008 Service Pack 3] | 2012-07-16 | -| 10.00.5785 | 2007.100.5785.0 | [2696626 Cumulative update package 5 (CU5) for SQL Server 2008 Service Pack 3] | 2012-05-19 | -| 10.00.5775 | 2007.100.5775.0 | [2673383 Cumulative update package 4 (CU4) for SQL Server 2008 Service Pack 3] | 2012-03-20 | -| 10.00.5770 | 2007.100.5770.0 | [2648098 Cumulative update package 3 (CU3) for SQL Server 2008 Service Pack 3] | 2012-01-16 | -| 10.00.5768 | 2007.100.5768.0 | [2633143 Cumulative update package 2 (CU2) for SQL Server 2008 Service Pack 3] | 2011-11-22 | -| 10.00.5766 | 2007.100.5766.0 | [2617146 Cumulative update package 1 (CU1) for SQL Server 2008 Service Pack 3] | 2011-10-18 | -| 10.00.5538 | 2007.100.5538.0 | [3045305 MS15-058: Description of the security update for SQL Server 2008 Service Pack 3 GDR: July 14, 2015] | 2015-07-14 | -| 10.00.5520 | 2007.100.5520.0 | [2977321 MS14-044: Description of the security update for SQL Server 2008 SP3 (GDR)] | 2014-08-12 | -| 10.00.5512 | 2007.100.5512.0 | [Microsoft Security Bulletin MS12-070] | 2012-10-09 | -| 10.00.5500 | 2007.100.5500.0 | [SQL Server 2008 Service Pack 3 (SP3)] | 2011-10-06 | -| 10.00.5416 | 2007.100.5416.0 | SQL Server 2008 Service Pack 3 CTP | 2011-08-22 | -| 10.00.4371 | 2007.100.4371.0 | [Microsoft Security Bulletin MS12-070] | 2012-10-09 | -| 10.00.4333 | 2007.100.4333.0 | [2715951 Cumulative update package 11 (CU11) for SQL Server 2008 Service Pack 2] | 2012-07-16 | -| 10.00.4332 | 2007.100.4332.0 | [2696625 Cumulative update package 10 (CU10) for SQL Server 2008 Service Pack 2] | 2012-05-20 | -| 10.00.4330 | 2007.100.4330.0 | [2673382 Cumulative update package 9 (CU9) for SQL Server 2008 Service Pack 2] | 2012-03-19 | -| 10.00.4326 | 2007.100.4326.0 | [2648096 Cumulative update package 8 (CU8) for SQL Server 2008 Service Pack 2] | 2012-01-30 | -| 10.00.4323 | 2007.100.4323.0 | [2617148 Cumulative update package 7 (CU7) for SQL Server 2008 Service Pack 2] | 2011-11-21 | -| 10.00.4321 | 2007.100.4321.0 | [2582285 Cumulative update package 6 (CU6) for SQL Server 2008 Service Pack 2] | 2011-09-20 | -| 10.00.4316 | 2007.100.4316.0 | [2555408 Cumulative update package 5 (CU5) for SQL Server 2008 Service Pack 2] | 2011-07-18 | -| 10.00.4285 | 2007.100.4285.0 | [2527180 Cumulative update package 4 (CU4) for SQL Server 2008 Service Pack 2] | 2011-05-16 | -| 10.00.4279 | 2007.100.4279.0 | [2498535 Cumulative update package 3 (CU3) for SQL Server 2008 Service Pack 2] | 2011-03-11 | -| 10.00.4272 | 2007.100.4272.0 | [2467239 Cumulative update package 2 (CU2) for SQL Server 2008 Service Pack 2] | 2011-02-10 | -| 10.00.4266 | 2007.100.4266.0 | [2289254 Cumulative update package 1 (CU1) for SQL Server 2008 Service Pack 2] | 2010-11-15 | -| 10.00.4067 | 2007.100.4067.0 | [Microsoft Security Bulletin MS12-070] | 2012-10-09 | -| 10.00.4064 | 2007.100.4064.0 | [2494089 MS11-049: Description of the security update for SQL Server 2008 Service Pack 2 GDR: June 14, 2011] | 2011-06-14 | -| 10.00.4000 | 2007.100.4000.0 | [SQL Server 2008 Service Pack 2 (SP2)] | 2010-09-29 | -| 10.00.3798 | 2007.100.3798.0 | SQL Server 2008 Service Pack 2 CTP | 2010-07-07 | -| 10.00.2850 | 2007.100.2850.0 | [2582282 Cumulative update package 16 (CU16) for SQL Server 2008 Service Pack 1] | 2011-09-19 | -| 10.00.2847 | 2007.100.2847.0 | [2555406 Cumulative update package 15 (CU15) for SQL Server 2008 Service Pack 1] | 2011-07-18 | -| 10.00.2821 | 2007.100.2821.0 | [2527187 Cumulative update package 14 (CU14) for SQL Server 2008 Service Pack 1] | 2011-05-16 | -| 10.00.2816 | 2007.100.2816.0 | [2497673 Cumulative update package 13 (CU13) for SQL Server 2008 Service Pack 1] | 2011-03-22 | -| 10.00.2808 | 2007.100.2808.0 | [2467236 Cumulative update package 12 (CU12) for SQL Server 2008 Service Pack 1] | 2011-02-10 | -| 10.00.2804 | 2007.100.2804.0 | [2413738 Cumulative update package 11 (CU11) for SQL Server 2008 Service Pack 1] | 2010-11-15 | -| 10.00.2799 | 2007.100.2799.0 | [2279604 Cumulative update package 10 (CU10) for SQL Server 2008 Service Pack 1] | 2010-09-21 | -| 10.00.2789 | 2007.100.2789.0 | [2083921 Cumulative update package 9 (CU9) for SQL Server 2008 Service Pack 1] | 2010-07-21 | -| 10.00.2787 | 2007.100.2787.0 | [2231277 FIX: The Reporting Services service stops unexpectedly after you apply SQL Server 2008 SP1 CU 7 or CU8] | 2010-07-30 | -| 10.00.2775 | 2007.100.2775.0 | [981702 Cumulative update package 8 (CU8) for SQL Server 2008 Service Pack 1] | 2010-05-17 | -| 10.00.2766 | 2007.100.2766.0 | [979065 Cumulative update package 7 (CU7) for SQL Server 2008 Service Pack 1] | 2010-03-26 | -| 10.00.2757 | 2007.100.2757.0 | [977443 Cumulative update package 6 (CU6) for SQL Server 2008 Service Pack 1] | 2010-01-18 | -| 10.00.2746 | 2007.100.2746.0 | [975977 Cumulative update package 5 (CU5) for SQL Server 2008 Service Pack 1] | 2009-11-16 | -| 10.00.2740 | 2007.100.2740.0 | [976761 FIX: Error message when you perform a rolling upgrade in a SQL Server 2008 cluster : "18401, Login failed for user SQLTEST\AgentService. Reason: Server is in script upgrade mode. Only administrator can connect at this time.[SQLState 42000]"] | 2009-11-24 | -| 10.00.2734 | 2007.100.2734.0 | [973602 Cumulative update package 4 (CU4) for SQL Server 2008 Service Pack 1] | 2009-09-22 | -| 10.00.2723 | 2007.100.2723.0 | [971491 Cumulative update package 3 (CU3) for SQL Server 2008 Service Pack 1] | 2009-07-21 | -| 10.00.2714 | 2007.100.2714.0 | [970315 Cumulative update package 2 (CU2) for SQL Server 2008 Service Pack 1] | 2009-05-18 | -| 10.00.2712 | 2007.100.2712.0 | [970507 FIX: Error message in SQL Server 2008 when you run an INSERT SELECT statement on a table: "Violation of PRIMARY KEY constraint ''. Cannot insert duplicate key in object ''"] | 2009-07-21 | -| 10.00.2710 | 2007.100.2710.0 | [969099 Cumulative update package 1 (CU1) for SQL Server 2008 Service Pack 1] | 2009-04-16 | -| 10.00.2573 | 2007.100.2573.0 | [2494096 MS11-049: Description of the security update for SQL Server 2008 Service Pack 1 GDR: June 14, 2011] | 2011-06-14 | -| 10.00.2531 | 2007.100.2531.0 | [SQL Server 2008 Service Pack 1 (SP1)] | 2009-04-07 | -| 10.00.2520 | 2007.100.2520.0 | SQL Server 2008 Service Pack 1 - CTP | 2009-02-23 | -| 10.00.1835 | 2007.100.1835.0 | [979064 Cumulative update package 10 (CU10) for SQL Server 2008] | 2010-03-15 | -| 10.00.1828 | 2007.100.1828.0 | [977444 Cumulative update package 9 (CU9) for SQL Server 2008] | 2010-01-18 | -| 10.00.1823 | 2007.100.1823.0 | [975976 Cumulative update package 8 (CU8) for SQL Server 2008] | 2009-11-16 | -| 10.00.1818 | 2007.100.1818.0 | [973601 Cumulative update package 7 (CU7) for SQL Server 2008] | 2009-09-21 | -| 10.00.1812 | 2007.100.1812.0 | [971490 Cumulative update package 6 (CU6) for SQL Server 2008] | 2009-07-21 | -| 10.00.1806 | 2007.100.1806.0 | [969531 Cumulative update package 5 (CU5) for SQL Server 2008] | 2009-05-18 | -| 10.00.1798 | 2007.100.1798.0 | [963036 Cumulative update package 4 (CU4) for SQL Server 2008] | 2009-03-17 | -| 10.00.1787 | 2007.100.1787.0 | [960484 Cumulative update package 3 (CU3) for SQL Server 2008] | 2009-01-19 | -| 10.00.1779 | 2007.100.1779.0 | [958186 Cumulative update package 2 (CU2) for SQL Server 2008] | 2008-11-19 | -| 10.00.1771 | 2007.100.1771.0 | [958611 FIX: You may receive incorrect results when you run a query that references three or more tables in the FROM clause in SQL Server 2008] | 2008-10-29 | -| 10.00.1763 | 2007.100.1763.0 | [956717 Cumulative update package 1 (CU1) for SQL Server 2008] | 2008-10-28 | -| 10.00.1750 | 2007.100.1750.0 | [956718 FIX: A MERGE statement may not enforce a foreign key constraint when the statement updates a unique key column that is not part of a clustering key that has a single row as the update source in SQL Server 2008] | 2008-08-25 | -| 10.00.1600 | 2007.100.1600.22 | [SQL Server 2008 RTM] | 2008-08-07 | -| 10.00.1442 | 2007.100.1442.32 | Microsoft SQL Server 2008 RC0 | 2008-06-05 | -| 10.00.1300 | 2007.100.1300.13 | Microsoft SQL Server 2008 CTP, February 2008 | 2008-02-19 | -| 10.00.1075 | 2007.100.1075.23 | Microsoft SQL Server 2008 CTP, November 2007 | 2007-11-18 | -| 10.00.1049 | 2007.100.1049.14 | SQL Server 2008 CTP, July 2007 | 2007-07-31 | -| 10.00.1019 | 2007.100.1019.17 | SQL Server 2008 CTP, June 2007 | 2007-05-21 | - +## Microsoft SQL Server 2008 Builds + + +| Build | File version | KB / Description | Release Date | +|--------------|------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------| +| 10.0.6547 | 2007.100.6547.0 | [3146034 Intermittent service terminations occur after you install any SQL Server 2008 or SQL Server 2008 R2 versions from KB3135244] | 2016-03-03 | +| 10.0.6543 | 2007.100.6543.0 | [3135244 TLS 1.2 support for SQL Server 2008 SP4] | 2016-01-27 | +| 10.0.6535 | 2007.100.6535.0 | [3045308 MS15-058: Description of the security update for SQL Server 2008 Service Pack 4 QFE: July 14, 2015] | 2015-07-14 | +| 10.0.6526 | 2007.100.6526.0 | [3034373 An on-demand hotfix update package is available for SQL Server 2008 Service Pack 4 (SP4)] | 2015-02-09 | +| 10.0.6241 | 2007.100.6241.0 | [3045311 MS15-058: Description of the security update for SQL Server 2008 Service Pack 4 GDR: July 14, 2015] | 2015-07-14 | +| 10.0.6000.29 | 2007.100.6000.29 | [2979596 SQL Server 2008 Service Pack 4 release information] | 2014-09-30 | +| 10.0.5894 | 2007.100.5894.0 | [3135244 TLS 1.2 support for SQL Server 2008 SP3 (IA-64 only)] | 2016-01-27 | +| 10.0.5890 | 2007.100.5890.0 | [3045303 MS15-058: Description of the security update for SQL Server 2008 Service Pack 3 QFE: July 14, 2015] | 2015-07-14 | +| 10.0.5869 | 2007.100.5869.0 | [2977322 MS14-044: Description of the security update for SQL Server 2008 SP3 (QFE)] | 2014-08-12 | +| 10.0.5867 | 2007.100.5867.0 | [2877204 FIX: Error 8985 when you run the "dbcc shrinkfile" statement by using the logical name of a file in SQL Server 2008 R2 or SQL Server 2008] | 2014-07-02 | +| 10.0.5861 | 2007.100.5861.0 | [2958696 Cumulative update package 17 (CU17) for SQL Server 2008 Service Pack 3] | 2014-05-19 | +| 10.0.5852 | 2007.100.5852.0 | [2936421 Cumulative update package 16 (CU16) for SQL Server 2008 Service Pack 3] | 2014-03-17 | +| 10.0.5850 | 2007.100.5850.0 | [2923520 Cumulative update package 15 (CU15) for SQL Server 2008 Service Pack 3] | 2014-01-20 | +| 10.0.5848 | 2007.100.5848.0 | [2893410 Cumulative update package 14 (CU14) for SQL Server 2008 Service Pack 3] | 2013-11-18 | +| 10.0.5846 | 2007.100.5846.0 | [2880350 Cumulative update package 13 (CU13) for SQL Server 2008 Service Pack 3] | 2013-09-16 | +| 10.0.5844 | 2007.100.5844.0 | [2863205 Cumulative update package 12 (CU12) for SQL Server 2008 Service Pack 3] | 2013-07-16 | +| 10.0.5841 | 2007.100.5841.0 | [2834048 Cumulative update package 11 (CU11) for SQL Server 2008 Service Pack 3 (updated)] | 2013-06-13 | +| 10.0.5840 | 2007.100.5840.0 | 2834048 Cumulative update package 11 (CU11) for SQL Server 2008 Service Pack 3 (replaced) | 2013-05-20 | +| 10.0.5835 | 2007.100.5835.0 | [2814783 Cumulative update package 10 (CU10) for SQL Server 2008 Service Pack 3] | 2013-03-18 | +| 10.0.5829 | 2007.100.5829.0 | [2799883 Cumulative update package 9 (CU9) for SQL Server 2008 Service Pack 3] | 2013-01-23 | +| 10.0.5828 | 2007.100.5828.0 | [2771833 Cumulative update package 8 (CU8) for SQL Server 2008 Service Pack 3] | 2012-11-19 | +| 10.0.5826 | 2007.100.5826.0 | [2716435 Microsoft Security Bulletin MS12-070] | 2012-10-09 | +| 10.0.5794 | 2007.100.5794.0 | [2738350 Cumulative update package 7 (CU7) for SQL Server 2008 Service Pack 3] | 2012-09-21 | +| 10.0.5788 | 2007.100.5788.0 | [2715953 Cumulative update package 6 (CU6) for SQL Server 2008 Service Pack 3] | 2012-07-16 | +| 10.0.5785 | 2007.100.5785.0 | [2696626 Cumulative update package 5 (CU5) for SQL Server 2008 Service Pack 3] | 2012-05-19 | +| 10.0.5775 | 2007.100.5775.0 | [2673383 Cumulative update package 4 (CU4) for SQL Server 2008 Service Pack 3] | 2012-03-20 | +| 10.0.5770 | 2007.100.5770.0 | [2648098 Cumulative update package 3 (CU3) for SQL Server 2008 Service Pack 3] | 2012-01-16 | +| 10.0.5768 | 2007.100.5768.0 | [2633143 Cumulative update package 2 (CU2) for SQL Server 2008 Service Pack 3] | 2011-11-22 | +| 10.0.5766 | 2007.100.5766.0 | [2617146 Cumulative update package 1 (CU1) for SQL Server 2008 Service Pack 3] | 2011-10-18 | +| 10.0.5538 | 2007.100.5538.0 | [3045305 MS15-058: Description of the security update for SQL Server 2008 Service Pack 3 GDR: July 14, 2015] | 2015-07-14 | +| 10.0.5520 | 2007.100.5520.0 | [2977321 MS14-044: Description of the security update for SQL Server 2008 SP3 (GDR)] | 2014-08-12 | +| 10.0.5512 | 2007.100.5512.0 | [Microsoft Security Bulletin MS12-070] | 2012-10-09 | +| 10.0.5500 | 2007.100.5500.0 | [SQL Server 2008 Service Pack 3 (SP3)] | 2011-10-06 | +| 10.0.5416 | 2007.100.5416.0 | SQL Server 2008 Service Pack 3 CTP | 2011-08-22 | +| 10.0.4371 | 2007.100.4371.0 | [Microsoft Security Bulletin MS12-070] | 2012-10-09 | +| 10.0.4333 | 2007.100.4333.0 | [2715951 Cumulative update package 11 (CU11) for SQL Server 2008 Service Pack 2] | 2012-07-16 | +| 10.0.4332 | 2007.100.4332.0 | [2696625 Cumulative update package 10 (CU10) for SQL Server 2008 Service Pack 2] | 2012-05-20 | +| 10.0.4330 | 2007.100.4330.0 | [2673382 Cumulative update package 9 (CU9) for SQL Server 2008 Service Pack 2] | 2012-03-19 | +| 10.0.4326 | 2007.100.4326.0 | [2648096 Cumulative update package 8 (CU8) for SQL Server 2008 Service Pack 2] | 2012-01-30 | +| 10.0.4323 | 2007.100.4323.0 | [2617148 Cumulative update package 7 (CU7) for SQL Server 2008 Service Pack 2] | 2011-11-21 | +| 10.0.4321 | 2007.100.4321.0 | [2582285 Cumulative update package 6 (CU6) for SQL Server 2008 Service Pack 2] | 2011-09-20 | +| 10.0.4316 | 2007.100.4316.0 | [2555408 Cumulative update package 5 (CU5) for SQL Server 2008 Service Pack 2] | 2011-07-18 | +| 10.0.4285 | 2007.100.4285.0 | [2527180 Cumulative update package 4 (CU4) for SQL Server 2008 Service Pack 2] | 2011-05-16 | +| 10.0.4279 | 2007.100.4279.0 | [2498535 Cumulative update package 3 (CU3) for SQL Server 2008 Service Pack 2] | 2011-03-11 | +| 10.0.4272 | 2007.100.4272.0 | [2467239 Cumulative update package 2 (CU2) for SQL Server 2008 Service Pack 2] | 2011-02-10 | +| 10.0.4266 | 2007.100.4266.0 | [2289254 Cumulative update package 1 (CU1) for SQL Server 2008 Service Pack 2] | 2010-11-15 | +| 10.0.4067 | 2007.100.4067.0 | [Microsoft Security Bulletin MS12-070] | 2012-10-09 | +| 10.0.4064 | 2007.100.4064.0 | [2494089 MS11-049: Description of the security update for SQL Server 2008 Service Pack 2 GDR: June 14, 2011] | 2011-06-14 | +| 10.0.4000 | 2007.100.4000.0 | [SQL Server 2008 Service Pack 2 (SP2)] | 2010-09-29 | +| 10.0.3798 | 2007.100.3798.0 | SQL Server 2008 Service Pack 2 CTP | 2010-07-07 | +| 10.0.2850 | 2007.100.2850.0 | [2582282 Cumulative update package 16 (CU16) for SQL Server 2008 Service Pack 1] | 2011-09-19 | +| 10.0.2847 | 2007.100.2847.0 | [2555406 Cumulative update package 15 (CU15) for SQL Server 2008 Service Pack 1] | 2011-07-18 | +| 10.0.2821 | 2007.100.2821.0 | [2527187 Cumulative update package 14 (CU14) for SQL Server 2008 Service Pack 1] | 2011-05-16 | +| 10.0.2816 | 2007.100.2816.0 | [2497673 Cumulative update package 13 (CU13) for SQL Server 2008 Service Pack 1] | 2011-03-22 | +| 10.0.2808 | 2007.100.2808.0 | [2467236 Cumulative update package 12 (CU12) for SQL Server 2008 Service Pack 1] | 2011-02-10 | +| 10.0.2804 | 2007.100.2804.0 | [2413738 Cumulative update package 11 (CU11) for SQL Server 2008 Service Pack 1] | 2010-11-15 | +| 10.0.2799 | 2007.100.2799.0 | [2279604 Cumulative update package 10 (CU10) for SQL Server 2008 Service Pack 1] | 2010-09-21 | +| 10.0.2789 | 2007.100.2789.0 | [2083921 Cumulative update package 9 (CU9) for SQL Server 2008 Service Pack 1] | 2010-07-21 | +| 10.0.2787 | 2007.100.2787.0 | [2231277 FIX: The Reporting Services service stops unexpectedly after you apply SQL Server 2008 SP1 CU 7 or CU8] | 2010-07-30 | +| 10.0.2775 | 2007.100.2775.0 | [981702 Cumulative update package 8 (CU8) for SQL Server 2008 Service Pack 1] | 2010-05-17 | +| 10.0.2766 | 2007.100.2766.0 | [979065 Cumulative update package 7 (CU7) for SQL Server 2008 Service Pack 1] | 2010-03-26 | +| 10.0.2757 | 2007.100.2757.0 | [977443 Cumulative update package 6 (CU6) for SQL Server 2008 Service Pack 1] | 2010-01-18 | +| 10.0.2746 | 2007.100.2746.0 | [975977 Cumulative update package 5 (CU5) for SQL Server 2008 Service Pack 1] | 2009-11-16 | +| 10.0.2740 | 2007.100.2740.0 | [976761 FIX: Error message when you perform a rolling upgrade in a SQL Server 2008 cluster : "18401, Login failed for user SQLTEST\AgentService. Reason: Server is in script upgrade mode. Only administrator can connect at this time.SQLState 42000"] | 2009-11-24 | +| 10.0.2734 | 2007.100.2734.0 | [973602 Cumulative update package 4 (CU4) for SQL Server 2008 Service Pack 1] | 2009-09-22 | +| 10.0.2723 | 2007.100.2723.0 | [971491 Cumulative update package 3 (CU3) for SQL Server 2008 Service Pack 1] | 2009-07-21 | +| 10.0.2714 | 2007.100.2714.0 | [970315 Cumulative update package 2 (CU2) for SQL Server 2008 Service Pack 1] | 2009-05-18 | +| 10.0.2712 | 2007.100.2712.0 | [970507 FIX: Error message in SQL Server 2008 when you run an INSERT SELECT statement on a table: "Violation of PRIMARY KEY constraint ''. Cannot insert duplicate key in object ''"] | 2009-07-21 | +| 10.0.2710 | 2007.100.2710.0 | [969099 Cumulative update package 1 (CU1) for SQL Server 2008 Service Pack 1] | 2009-04-16 | +| 10.0.2573 | 2007.100.2573.0 | [2494096 MS11-049: Description of the security update for SQL Server 2008 Service Pack 1 GDR: June 14, 2011] | 2011-06-14 | +| 10.0.2531 | 2007.100.2531.0 | [SQL Server 2008 Service Pack 1 (SP1)] | 2009-04-07 | +| 10.0.2520 | 2007.100.2520.0 | SQL Server 2008 Service Pack 1 - CTP | 2009-02-23 | +| 10.0.1835 | 2007.100.1835.0 | [979064 Cumulative update package 10 (CU10) for SQL Server 2008] | 2010-03-15 | +| 10.0.1828 | 2007.100.1828.0 | [977444 Cumulative update package 9 (CU9) for SQL Server 2008] | 2010-01-18 | +| 10.0.1823 | 2007.100.1823.0 | [975976 Cumulative update package 8 (CU8) for SQL Server 2008] | 2009-11-16 | +| 10.0.1818 | 2007.100.1818.0 | [973601 Cumulative update package 7 (CU7) for SQL Server 2008] | 2009-09-21 | +| 10.0.1812 | 2007.100.1812.0 | [971490 Cumulative update package 6 (CU6) for SQL Server 2008] | 2009-07-21 | +| 10.0.1806 | 2007.100.1806.0 | [969531 Cumulative update package 5 (CU5) for SQL Server 2008] | 2009-05-18 | +| 10.0.1798 | 2007.100.1798.0 | [963036 Cumulative update package 4 (CU4) for SQL Server 2008] | 2009-03-17 | +| 10.0.1787 | 2007.100.1787.0 | [960484 Cumulative update package 3 (CU3) for SQL Server 2008] | 2009-01-19 | +| 10.0.1779 | 2007.100.1779.0 | [958186 Cumulative update package 2 (CU2) for SQL Server 2008] | 2008-11-19 | +| 10.0.1771 | 2007.100.1771.0 | [958611 FIX: You may receive incorrect results when you run a query that references three or more tables in the FROM clause in SQL Server 2008] | 2008-10-29 | +| 10.0.1763 | 2007.100.1763.0 | [956717 Cumulative update package 1 (CU1) for SQL Server 2008] | 2008-10-28 | +| 10.0.1750 | 2007.100.1750.0 | [956718 FIX: A MERGE statement may not enforce a foreign key constraint when the statement updates a unique key column that is not part of a clustering key that has a single row as the update source in SQL Server 2008] | 2008-08-25 | +| 10.0.1600 | 2007.100.1600.22 | [SQL Server 2008 RTM] | 2008-08-07 | +| 10.0.1442 | 2007.100.1442.32 | Microsoft SQL Server 2008 RC0 | 2008-06-05 | +| 10.0.1300 | 2007.100.1300.13 | Microsoft SQL Server 2008 CTP, February 2008 | 2008-02-19 | +| 10.0.1075 | 2007.100.1075.23 | Microsoft SQL Server 2008 CTP, November 2007 | 2007-11-18 | +| 10.0.1049 | 2007.100.1049.14 | SQL Server 2008 CTP, July 2007 | 2007-07-31 | +| 10.0.1019 | 2007.100.1019.17 | SQL Server 2008 CTP, June 2007 | 2007-05-21 | + +[3146034 Intermittent service terminations occur after you install any SQL Server 2008 or SQL Server 2008 R2 versions from KB3135244]:http://support.microsoft.com/en-us/kb/3146034 +[3135244 TLS 1.2 support for SQL Server 2008 SP4]:http://support.microsoft.com/en-us/kb/3135244 [3045308 MS15-058: Description of the security update for SQL Server 2008 Service Pack 4 QFE: July 14, 2015]:http://support.microsoft.com/kb/3045308 [3034373 An on-demand hotfix update package is available for SQL Server 2008 Service Pack 4 (SP4)]:http://support.microsoft.com/kb/3034373 [3045311 MS15-058: Description of the security update for SQL Server 2008 Service Pack 4 GDR: July 14, 2015]:https://support.microsoft.com/en-us/kb/3045311 -[SQL Server 2008 Service Pack 4 (SP4)]:http://www.microsoft.com/en-us/download/details.aspx?id=44278 +[2979596 SQL Server 2008 Service Pack 4 release information]:https://support.microsoft.com/en-us/kb/2979596 +[3135244 TLS 1.2 support for SQL Server 2008 SP3 (IA-64 only)]:http://support.microsoft.com/en-us/kb/3135244 [3045303 MS15-058: Description of the security update for SQL Server 2008 Service Pack 3 QFE: July 14, 2015]:https://support.microsoft.com/en-us/kb/3045303 [2977322 MS14-044: Description of the security update for SQL Server 2008 SP3 (QFE)]:http://support.microsoft.com/kb/2977322 [2877204 FIX: Error 8985 when you run the "dbcc shrinkfile" statement by using the logical name of a file in SQL Server 2008 R2 or SQL Server 2008]:http://support.microsoft.com/kb/2877204 @@ -779,7 +1341,7 @@ Service Pack 1 includes a number of enhancements; these were the most interestin [979065 Cumulative update package 7 (CU7) for SQL Server 2008 Service Pack 1]:http://support.microsoft.com/kb/979065 [977443 Cumulative update package 6 (CU6) for SQL Server 2008 Service Pack 1]:http://support.microsoft.com/kb/977443 [975977 Cumulative update package 5 (CU5) for SQL Server 2008 Service Pack 1]:http://support.microsoft.com/kb/975977 -[976761 FIX: Error message when you perform a rolling upgrade in a SQL Server 2008 cluster : "18401, Login failed for user SQLTEST\AgentService. Reason: Server is in script upgrade mode. Only administrator can connect at this time.[SQLState 42000]"]:http://support.microsoft.com/kb/976761 +[976761 FIX: Error message when you perform a rolling upgrade in a SQL Server 2008 cluster : "18401, Login failed for user SQLTEST\AgentService. Reason: Server is in script upgrade mode. Only administrator can connect at this time.SQLState 42000"]:http://support.microsoft.com/kb/976761 [973602 Cumulative update package 4 (CU4) for SQL Server 2008 Service Pack 1]:http://support.microsoft.com/kb/973602 [971491 Cumulative update package 3 (CU3) for SQL Server 2008 Service Pack 1]:http://support.microsoft.com/kb/971491 [970315 Cumulative update package 2 (CU2) for SQL Server 2008 Service Pack 1]:http://support.microsoft.com/kb/970315 @@ -802,7 +1364,8 @@ Service Pack 1 includes a number of enhancements; these were the most interestin [SQL Server 2008 RTM]:http://msdn.microsoft.com/en-us/subscriptions/downloads/details/default.aspx?pm=pid%3a334 -## Microsoft SQL Server 2005 Builds +## Microsoft SQL Server 2005 Builds + | Build | File version | KB / Description | Release Date | |-----------|----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------| @@ -1291,811 +1854,443 @@ Service Pack 1 includes a number of enhancements; these were the most interestin [911662 FIX: You may receive an access violation error message when you run a SELECT query in SQL Server 2005]:http://support.microsoft.com/kb/911662 [915793 FIX: You cannot restore the log backups on the mirror server after you remove database mirroring for the mirror database in SQL Server 2005]:http://support.microsoft.com/kb/915793 [910416 FIX: Error message when you run certain queries or certain stored procedures in SQL Server 2005: "A severe error occurred on the current command"]:http://support.microsoft.com/kb/910416 -[932557 FIX: A script task or a script component may not run correctly when you run an SSIS package in SQL Server 2005 build 1399]:http://support.microsoft.com/kb/932557 +[932557 FIX: A script task or a script component may not run correctly when you run an SSIS package in SQL Server 2005 build 1399]:https://support.microsoft.com/help/932557 -## Microsoft SQL Server 2000 Builds +## Microsoft SQL Server 2000 Builds + | Build | File version | KB / Description | Release Date | |-----------|----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------| | 8.00.2305 | 2000.80.2305.0 | [983811 MS12-060: Description of the security update for SQL Server 2000 Service Pack 4 QFE: August 14, 2012] | 2012-08-14 | | 8.00.2301 | 2000.80.2301.0 | [983809 MS12-027: Description of the security update for Microsoft SQL Server 2000 Service Pack 4 QFE: April 10, 2012] | 2012-04-10 | -| 8.00.2283 | 2000.80.2283.0 | [971524 FIX: An access violation occurs when you run a DELETE statement or an UPDATE statement in the Itanium-based versions of SQL Server 2000 after you install security update MS09-004] | 2009-06-15 | +| 8.00.2283 | 2000.80.2283.0 | 971524 FIX: An access violation occurs when you run a DELETE statement or an UPDATE statement in the Itanium-based versions of SQL Server 2000 after you install security update MS09-004] | 2009-06-15 | | 8.00.2282 | 2000.80.2282.0 | [960083 MS09-004: Description of the security update for SQL Server 2000 QFE and for MSDE 2000: February 10, 2009] | 2009-02-10 | -| 8.00.2279 | 2000.80.2279.0 | [959678 FIX: When you run the SPSBackup.exe utility to back up a SQL Server 2000 database that is configured as a back-end database for a Windows SharePoint Services server, the backup operation fails] | 2009-04-08 | -| 8.00.2273 | 2000.80.2273.0 | [948111 MS08-040: Description of the security update for SQL Server 2000 QFE and MSDE 2000 July 8, 2008] | 2008-08-05 | -| 8.00.2271 | 2000.80.2271.0 | [946584 FIX: The SPACE function always returns one space in SQL Server 2000 if the SPACE function uses a collation that differs from the collation of the current database] | 2008-03-12 | -| 8.00.2265 | 2000.80.2265.0 | [944985 FIX: The data on the publisher does not match the data on the subscriber when you synchronize a SQL Server 2005 Mobile Edition subscriber with a SQL Server 2000 "merge replication" publisher] | 2007-12-19 | -| 8.00.2253 | 2000.80.2253.0 | [939317 FIX: The CPU utilization may suddenly increase to 100 percent when there are many connections to an instance of SQL Server 2000 on a computer that has multiple processors] | 2007-10-09 | -| 8.00.2249 | 2000.80.2249.0 | [936232 FIX: An access violation may occur when you try to log in to an instance of SQL Server 2000] | 2007-05-25 | -| 8.00.2248 | 2000.80.2248.0 | [935950 FIX: The foreign key that you created between two tables does not work after you run the CREATE INDEX statement in SQL Server 2000] | 2007-06-14 | -| 8.00.2246 | 2000.80.2246.0 | [935465 An updated version of Sqlvdi.dll is now available for SQL Server 2000] | 2007-06-18 | -| 8.00.2245 | 2000.80.2245.0 | [933573 FIX: You may receive an assertion or database corruption may occur when you use the bcp utility or the "Bulk Insert" Transact-SQL command to import data in SQL Server 2000] | 2007-04-24 | -| 8.00.2244 | 2000.80.2244.0 | [934203 FIX: A hotfix for Microsoft SQL Server 2000 Service Pack 4 may not update all the necessary files on an x64-based computer] | 2007-05-10 | -| 8.00.2242 | 2000.80.2242.0 | [929131 FIX: In SQL Server 2000, the synchronization process is slow, and the CPU usage is high on the computer that is configured as the Distributor] | 2007-03-28 | -| 8.00.2238 | 2000.80.2238.0 | [931932 FIX: The merge agent fails intermittently when you use merge replication that uses a custom resolver after you install SQL Server 2000 Service Pack 4] | 2007-02-21 | -| 8.00.2236 | 2000.80.2236.0 | [930484 FIX: CPU utilization may approach 100 percent on a computer that is running SQL Server 2000 after you run the BACKUP DATABASE statement or the BACKUP LOG statement] | 2007-02-02 | -| 8.00.2234 | 2000.80.2234.0 | [929440 FIX: Error messages when you try to update table rows or insert table rows into a table in SQL Server 2000: "644" or "2511"] | 2007-02-22 | -| 8.00.2232 | 2000.80.2232.0 | [928568 FIX: SQL Server 2000 stops responding when you cancel a query or when a query time-out occurs, and error messages are logged in the SQL Server error log file] | 2007-01-15 | -| 8.00.2231 | 2000.80.2231.0 | [928079 FIX: The Sqldumper.exe utility cannot generate a filtered SQL Server dump file when you use the Remote Desktop Connection service or Terminal Services to connect to a Windows 2000 Server-based computer in SQL Server 2000] | 2007-06-19 | -| 8.00.2229 | 2000.80.2229.0 | [927186 FIX: Error message when you create a merge replication for tables that have computed columns in SQL Server 2000 Service Pack 4: "The process could not log conflict information"] | 2007-07-24 | -| 8.00.2226 | 2000.80.2226.0 | [925684 FIX: You may experience one or more symptoms when you run a "CREATE INDEX" statement on an instance of SQL Server 2000] | 2006-11-20 | -| 8.00.2226 | 2000.80.2226.0 | [925732 FIX: You may receive inconsistent comparison results when you compare strings by using a width sensitive collation in SQL Server 2000] | 2006-11-13 | -| 8.00.2223 | 2000.80.2223.0 | [925419 FIX: The server stops responding, the performance is slow, and a time-out occurs in SQL Server 2000] | 2007-07-20 | -| 8.00.2223 | 2000.80.2223.0 | [925678 FIX: Error message when you schedule a Replication Merge Agent job to run after you install SQL Server 2000 Service Pack 4: "The process could not enumerate changes at the 'Subscriber'"] | 2006-10-31 | -| 8.00.2218 | 2000.80.2218.0 | [925297 FIX: The result may be sorted in the wrong order when you run a query that uses the ORDER BY clause to sort a column in a table in SQL Server 2000] | 2007-06-19 | -| 8.00.2217 | 2000.80.2217.0 | [924664 FIX: You cannot stop the SQL Server service, or many minidump files and many log files are generated in SQL Server 2000] | 2007-10-25 | -| 8.00.2215 | 2000.80.2215.0 | [923796 FIX: Data in a subscriber of a merge publication in SQL Server 2000 differs from the data in the publisher] | 2007-01-12 | -| 8.00.2215 | 2000.80.2215.0 | [924662 FIX: The query performance may be slow when you query data from a view in SQL Server 2000] | 2006-10-05 | -| 8.00.2215 | 2000.80.2215.0 | [923563 FIX: Error message when you configure an immediate updating transactional replication in SQL Server 2000: "Implicit conversion from datatype 'text' to 'nvarchar' is not allowed"] | 2006-10-30 | -| 8.00.2215 | 2000.80.2215.0 | [923327 FIX: You may receive an access violation error message when you import data by using the "Bulk Insert" command in SQL Server 2000] | 2006-12-28 | -| 8.00.2209 | 2000.80.2209.0 | [923797 The Knowledge Base (KB) Article You Requested Is Currently Not Available] | ??? | -| 8.00.2207 | 2000.80.2207.0 | [923344 FIX: A SQL Server 2000 session may be blocked for the whole time that a Snapshot Agent job runs] | 2006-08-28 | -| 8.00.2201 | 2000.80.2201.0 | [920930 FIX: Error message when you try to run a query on a linked server in SQL Server 2000] | 2006-08-21 | -| 8.00.2199 | 2000.80.2199.0 | [919221 FIX: SQL Server 2000 may take a long time to complete the synchronization phase when you create a merge publication] | 2006-07-26 | -| 8.00.2197 | 2000.80.2197.0 | [919133 FIX: Each query takes a long time to compile when you execute a single query or when you execute multiple concurrent queries in SQL Server 2000] | 2006-08-02 | -| 8.00.2197 | 2000.80.2197.0 | [919068 FIX: The query may return incorrect results, and the execution plan for the query may contain a "Table Spool" operator in SQL Server 2000] | 2006-08-08 | -| 8.00.2197 | 2000.80.2197.0 | [919399 FIX: A profiler trace in SQL Server 2000 may stop logging events unexpectedly, and you may receive the following error message: "Failed to read trace data"] | 2006-10-18 | -| 8.00.2196 | 2000.80.2196.0 | [919165 FIX: A memory leak occurs when you run a remote query by using a linked server in SQL Server 2000] | 2006-08-14 | -| 8.00.2194 | 2000.80.2194.0 | [917565 FIX: Error 17883 is logged in the SQL Server error log, and the instance of SQL Server 2000 temporarily stops responding] | 2007-02-21 | -| 8.00.2194 | 2000.80.2194.0 | [917972 FIX: You receive an access violation error message when you try to perform a read of a large binary large object column in SQL Server 2000] | 2006-09-22 | -| 8.00.2192 | 2000.80.2192.0 | [917606 FIX: You may notice a decrease in performance when you run a query that uses the UNION ALL operator in SQL Server 2000 Service Pack 4] | 2006-08-04 | -| 8.00.2191 | 2000.80.2191.0 | [916698 FIX: Error message when you run SQL Server 2000: "Failed assertion = 'lockFound == TRUE'"] | 2006-07-26 | -| 8.00.2191 | 2000.80.2191.0 | [916950 FIX: You may experience heap corruption, and SQL Server 2000 may shut down with fatal access violations when you try to browse files in SQL Server 2000 Enterprise Manager on a Windows Server 2003 x64-based computer] | 2006-10-03 | -| 8.00.2189 | 2000.80.2189.0 | [916652 FIX: An access violation may occur when you run a query on a table that has a multicolumn index in SQL Server 2000] | 2006-07-26 | -| 8.00.2189 | 2000.80.2189.0 | [913438 FIX: The SQL Server process may end unexpectedly when you turn on trace flag -T1204 and a profiler trace is capturing the Lock:DeadLock Chain event in SQL Server 2000 SP4] | 2006-07-19 | -| 8.00.2187 | 2000.80.2187.0 | [915340 FIX: A deadlock occurs when the scheduled SQL Server Agent job that you add or that you update is running in SQL Server 2000] | 2007-06-18 | -| 8.00.2187 | 2000.80.2187.0 | [916287 A cumulative hotfix package is available for SQL Server 2000 Service Pack 4 build 2187] | 2006-10-16 | -| 8.00.2187 | 2000.80.2187.0 | [914384 FIX: The database status changes to Suspect when you perform a bulk copy in a transaction and then roll back the transaction in SQL Server 2000] | 2006-07-26 | -| 8.00.2187 | 2000.80.2187.0 | [915065 FIX: Error message when you try to apply a hotfix on a SQL Server 2000-based computer that is configured as a MSCS node: "An error in updating your system has occurred"] | 2006-12-11 | -| 8.00.2180 | 2000.80.2180.0 | [913789 FIX: The password that you specify in a BACKUP statement appears in the SQL Server Errorlog file or in the Application event log if the BACKUP statement does not run in SQL Server 2000] | 2007-02-19 | -| 8.00.2180 | 2000.80.2180.0 | [913684 FIX: You may receive error messages when you use linked servers in SQL Server 2000 on a 64-bit Itanium processor] | 2006-07-26 | -| 8.00.2175 | 2000.80.2175.0 | [911678 FIX: No rows may be returned, and you may receive an error message when you try to import SQL Profiler trace files into tables by using the fn_trace_gettable function in SQL Server 2000] | 2006-07-26 | -| 8.00.2172 | 2000.80.2172.0 | [910707 FIX: When you query a view that was created by using the VIEW_METADATA option, an access violation may occur in SQL Server 2000] | 2006-07-26 | -| 8.00.2171 | 2000.80.2171.0 | [909369 FIX: Automatic checkpoints on some SQL Server 2000 databases do not run as expected] | 2006-07-26 | -| 8.00.2168 | 2000.80.2168.0 | [907813 FIX: An error occurs when you try to access the Analysis Services performance monitor counter object after you apply Windows Server 2003 SP1] | 2006-11-21 | -| 8.00.2166 | 2000.80.2166.0 | [909734 FIX: An error message is logged, and new diagnostics do not capture the thread stack when the SQL Server User Mode Scheduler (UMS) experiences a nonyielding thread in SQL Server 2000 Service Pack 4] | 2006-07-26 | -| 8.00.2162 | 2000.80.2162.0 | [904660 A cumulative hotfix package is available for SQL Server 2000 Service Pack 4 build 2162] | 2006-09-15 | -| 8.00.2159 | 2000.80.2159.0 | [907250 FIX: You may experience concurrency issues when you run the DBCC INDEXDEFRAG statement in SQL Server 2000] | 2006-07-26 | -| 8.00.2156 | 2000.80.2156.0 | [906790 FIX: You receive an error message when you try to rebuild the master database after you have installed hotfix builds in SQL Server 2000 SP4 64-bit] | 2006-07-25 | -| 8.00.2151 | 2000.80.2151.0 | [903742 FIX: You receive an "Error: 8526, Severity: 16, State: 2" error message in SQL Profiler when you use SQL Query Analyzer to start or to enlist into a distributed transaction after you have installed SQL Server 2000 SP4] | 2006-07-25 | -| 8.00.2151 | 2000.80.2151.0 | [904244 FIX: Incorrect data is inserted unexpectedly when you perform a bulk copy operation by using the DB-Library API in SQL Server 2000 Service Pack 4] | 2007-06-13 | -| 8.00.2148 | 2000.80.2148.0 | [899430 FIX: An access violation may occur when you run a SELECT query and the NO_BROWSETABLE option is set to ON in Microsoft SQL Server 2000] | 2006-07-25 | -| 8.00.2148 | 2000.80.2148.0 | [899431 FIX: An access violation occurs in the Mssdi98.dll file, and SQL Server crashes when you use SQL Query Analyzer to debug a stored procedure in SQL Server 2000 Service Pack 4] | 2006-07-25 | -| 8.00.2148 | 2000.80.2148.0 | [900390 FIX: The Mssdmn.exe process may use lots of CPU capacity when you perform a SQL Server 2000 full text search of Office Word documents] | 2006-06-01 | -| 8.00.2148 | 2000.80.2148.0 | [900404 FIX: The results of the query may be returned much slower than you expect when you run a query that includes a GROUP BY statement in SQL Server 2000] | 2006-06-01 | -| 8.00.2148 | 2000.80.2148.0 | [901212 FIX: You receive an error message if you use the sp_addalias or sp_dropalias procedures when the IMPLICIT_TRANSACTIONS option is set to ON in SQL Server 2000 SP4] | 2006-07-25 | -| 8.00.2148 | 2000.80.2148.0 | [902150 FIX: Some 32-bit applications that use SQL-DMO and SQL-VDI APIs may stop working after you install SQL Server 2000 Service Pack 4 on an Itanium-based computer] | 2006-06-01 | -| 8.00.2148 | 2000.80.2148.0 | [902955 FIX: You receive a "Getting registry information" message when you run the Sqldiag.exe utility after you install SQL Server 2000 SP4] | 2006-07-25 | -| 8.00.2147 | 2000.80.2147.0 | [899410 FIX: You may experience slow server performance when you start a trace in an instance of SQL Server 2000 that runs on a computer that has more than four processors] | 2006-06-01 | -| 8.00.2145 | 2000.80.2145.0 | [826906 FIX: A query that uses a view that contains a correlated subquery and an aggregate runs slowly] | 2005-10-25 | -| 8.00.2145 | 2000.80.2145.0 | [836651 FIX: You receive query results that were not expected when you use both ANSI joins and non-ANSI joins] | 2006-06-07 | -| 8.00.2066 | 2000.80.2066.0 | [Microsoft Security Bulletin MS12-060] | 2012-08-14 | -| 8.00.2065 | 2000.80.2065.0 | [983808 MS12-027: Description of the security update for Microsoft SQL Server 2000 Service Pack 4 GDR: April 10, 2012] | 2012-04-10 | -| 8.00.2055 | 2000.80.2055.0 | [959420 MS09-004: Vulnerabilities in Microsoft SQL Server could allow remote code execution] | 2009-02-10 | -| 8.00.2040 | 2000.80.2040.0 | [899761 FIX: Not all memory is available when AWE is enabled on a computer that is running a 32-bit version of SQL Server 2000 SP4] | 2006-08-15 | -| 8.00.2039 | 2000.80.2039.0 | [SQL Server 2000 Service Pack 4 (SP4)] | 2005-05-06 | +| 8.00.2279 | 2000.80.2279.0 | 959678 FIX: When you run the SPSBackup.exe utility to back up a SQL Server 2000 database that is configured as a back-end database for a Windows SharePoint Services server, the backup operation fails | 2009-04-08 | +| 8.00.2273 | 2000.80.2273.0 | 948111 MS08-040: Description of the security update for SQL Server 2000 QFE and MSDE 2000 July 8, 2008 | 2008-08-05 | +| 8.00.2271 | 2000.80.2271.0 | 946584 FIX: The SPACE function always returns one space in SQL Server 2000 if the SPACE function uses a collation that differs from the collation of the current database | 2008-03-12 | +| 8.00.2265 | 2000.80.2265.0 | 944985 FIX: The data on the publisher does not match the data on the subscriber when you synchronize a SQL Server 2005 Mobile Edition subscriber with a SQL Server 2000 "merge replication" publisher | 2007-12-19 | +| 8.00.2253 | 2000.80.2253.0 | 939317 FIX: The CPU utilization may suddenly increase to 100 percent when there are many connections to an instance of SQL Server 2000 on a computer that has multiple processors | 2007-10-09 | +| 8.00.2249 | 2000.80.2249.0 | 936232 FIX: An access violation may occur when you try to log in to an instance of SQL Server 2000 | 2007-05-25 | +| 8.00.2248 | 2000.80.2248.0 | 935950 FIX: The foreign key that you created between two tables does not work after you run the CREATE INDEX statement in SQL Server 2000 | 2007-06-14 | +| 8.00.2246 | 2000.80.2246.0 | 935465 An updated version of Sqlvdi.dll is now available for SQL Server 2000 | 2007-06-18 | +| 8.00.2245 | 2000.80.2245.0 | 933573 FIX: You may receive an assertion or database corruption may occur when you use the bcp utility or the "Bulk Insert" Transact-SQL command to import data in SQL Server 2000 | 2007-04-24 | +| 8.00.2244 | 2000.80.2244.0 | 934203 FIX: A hotfix for Microsoft SQL Server 2000 Service Pack 4 may not update all the necessary files on an x64-based computer | 2007-05-10 | +| 8.00.2242 | 2000.80.2242.0 | 929131 FIX: In SQL Server 2000, the synchronization process is slow, and the CPU usage is high on the computer that is configured as the Distributor | 2007-03-28 | +| 8.00.2238 | 2000.80.2238.0 | 931932 FIX: The merge agent fails intermittently when you use merge replication that uses a custom resolver after you install SQL Server 2000 Service Pack 4 | 2007-02-21 | +| 8.00.2236 | 2000.80.2236.0 | 930484 FIX: CPU utilization may approach 100 percent on a computer that is running SQL Server 2000 after you run the BACKUP DATABASE statement or the BACKUP LOG statement | 2007-02-02 | +| 8.00.2234 | 2000.80.2234.0 | 929440 FIX: Error messages when you try to update table rows or insert table rows into a table in SQL Server 2000: "644" or "2511" | 2007-02-22 | +| 8.00.2232 | 2000.80.2232.0 | 928568 FIX: SQL Server 2000 stops responding when you cancel a query or when a query time-out occurs, and error messages are logged in the SQL Server error log file | 2007-01-15 | +| 8.00.2231 | 2000.80.2231.0 | 928079 FIX: The Sqldumper.exe utility cannot generate a filtered SQL Server dump file when you use the Remote Desktop Connection service or Terminal Services to connect to a Windows 2000 Server-based computer in SQL Server 2000 | 2007-06-19 | +| 8.00.2229 | 2000.80.2229.0 | 927186 FIX: Error message when you create a merge replication for tables that have computed columns in SQL Server 2000 Service Pack 4: "The process could not log conflict information" | 2007-07-24 | +| 8.00.2226 | 2000.80.2226.0 | 925684 FIX: You may experience one or more symptoms when you run a "CREATE INDEX" statement on an instance of SQL Server 2000 | 2006-11-20 | +| 8.00.2226 | 2000.80.2226.0 | 925732 FIX: You may receive inconsistent comparison results when you compare strings by using a width sensitive collation in SQL Server 2000 | 2006-11-13 | +| 8.00.2223 | 2000.80.2223.0 | 925419 FIX: The server stops responding, the performance is slow, and a time-out occurs in SQL Server 2000 | 2007-07-20 | +| 8.00.2223 | 2000.80.2223.0 | 925678 FIX: Error message when you schedule a Replication Merge Agent job to run after you install SQL Server 2000 Service Pack 4: "The process could not enumerate changes at the 'Subscriber'" | 2006-10-31 | +| 8.00.2218 | 2000.80.2218.0 | 925297 FIX: The result may be sorted in the wrong order when you run a query that uses the ORDER BY clause to sort a column in a table in SQL Server 2000 | 2007-06-19 | +| 8.00.2217 | 2000.80.2217.0 | 924664 FIX: You cannot stop the SQL Server service, or many minidump files and many log files are generated in SQL Server 2000 | 2007-10-25 | +| 8.00.2215 | 2000.80.2215.0 | 923796 FIX: Data in a subscriber of a merge publication in SQL Server 2000 differs from the data in the publisher | 2007-01-12 | +| 8.00.2215 | 2000.80.2215.0 | 924662 FIX: The query performance may be slow when you query data from a view in SQL Server 2000 | 2006-10-05 | +| 8.00.2215 | 2000.80.2215.0 | 923563 FIX: Error message when you configure an immediate updating transactional replication in SQL Server 2000: "Implicit conversion from datatype 'text' to 'nvarchar' is not allowed" | 2006-10-30 | +| 8.00.2215 | 2000.80.2215.0 | 923327 FIX: You may receive an access violation error message when you import data by using the "Bulk Insert" command in SQL Server 2000 | 2006-12-28 | +| 8.00.2209 | 2000.80.2209.0 | 923797 The Knowledge Base (KB) Article You Requested Is Currently Not Available | ??? | +| 8.00.2207 | 2000.80.2207.0 | 923344 FIX: A SQL Server 2000 session may be blocked for the whole time that a Snapshot Agent job runs | 2006-08-28 | +| 8.00.2201 | 2000.80.2201.0 | 920930 FIX: Error message when you try to run a query on a linked server in SQL Server 2000 | 2006-08-21 | +| 8.00.2199 | 2000.80.2199.0 | 919221 FIX: SQL Server 2000 may take a long time to complete the synchronization phase when you create a merge publication | 2006-07-26 | +| 8.00.2197 | 2000.80.2197.0 | 919133 FIX: Each query takes a long time to compile when you execute a single query or when you execute multiple concurrent queries in SQL Server 2000 | 2006-08-02 | +| 8.00.2197 | 2000.80.2197.0 | 919068 FIX: The query may return incorrect results, and the execution plan for the query may contain a "Table Spool" operator in SQL Server 2000 | 2006-08-08 | +| 8.00.2197 | 2000.80.2197.0 | 919399 FIX: A profiler trace in SQL Server 2000 may stop logging events unexpectedly, and you may receive the following error message: "Failed to read trace data" | 2006-10-18 | +| 8.00.2196 | 2000.80.2196.0 | 919165 FIX: A memory leak occurs when you run a remote query by using a linked server in SQL Server 2000 | 2006-08-14 | +| 8.00.2194 | 2000.80.2194.0 | 917565 FIX: Error 17883 is logged in the SQL Server error log, and the instance of SQL Server 2000 temporarily stops responding | 2007-02-21 | +| 8.00.2194 | 2000.80.2194.0 | 917972 FIX: You receive an access violation error message when you try to perform a read of a large binary large object column in SQL Server 2000 | 2006-09-22 | +| 8.00.2192 | 2000.80.2192.0 | 917606 FIX: You may notice a decrease in performance when you run a query that uses the UNION ALL operator in SQL Server 2000 Service Pack 4 | 2006-08-04 | +| 8.00.2191 | 2000.80.2191.0 | 916698 FIX: Error message when you run SQL Server 2000: "Failed assertion = 'lockFound == TRUE'" | 2006-07-26 | +| 8.00.2191 | 2000.80.2191.0 | 916950 FIX: You may experience heap corruption, and SQL Server 2000 may shut down with fatal access violations when you try to browse files in SQL Server 2000 Enterprise Manager on a Windows Server 2003 x64-based computer | 2006-10-03 | +| 8.00.2189 | 2000.80.2189.0 | 916652 FIX: An access violation may occur when you run a query on a table that has a multicolumn index in SQL Server 2000 | 2006-07-26 | +| 8.00.2189 | 2000.80.2189.0 | 913438 FIX: The SQL Server process may end unexpectedly when you turn on trace flag -T1204 and a profiler trace is capturing the Lock:DeadLock Chain event in SQL Server 2000 SP4 | 2006-07-19 | +| 8.00.2187 | 2000.80.2187.0 | 915340 FIX: A deadlock occurs when the scheduled SQL Server Agent job that you add or that you update is running in SQL Server 2000 | 2007-06-18 | +| 8.00.2187 | 2000.80.2187.0 | 916287 A cumulative hotfix package is available for SQL Server 2000 Service Pack 4 build 2187 | 2006-10-16 | +| 8.00.2187 | 2000.80.2187.0 | 914384 FIX: The database status changes to Suspect when you perform a bulk copy in a transaction and then roll back the transaction in SQL Server 2000 | 2006-07-26 | +| 8.00.2187 | 2000.80.2187.0 | 915065 FIX: Error message when you try to apply a hotfix on a SQL Server 2000-based computer that is configured as a MSCS node: "An error in updating your system has occurred" | 2006-12-11 | +| 8.00.2180 | 2000.80.2180.0 | 913789 FIX: The password that you specify in a BACKUP statement appears in the SQL Server Errorlog file or in the Application event log if the BACKUP statement does not run in SQL Server 2000 | 2007-02-19 | +| 8.00.2180 | 2000.80.2180.0 | 913684 FIX: You may receive error messages when you use linked servers in SQL Server 2000 on a 64-bit Itanium processor | 2006-07-26 | +| 8.00.2175 | 2000.80.2175.0 | 911678 FIX: No rows may be returned, and you may receive an error message when you try to import SQL Profiler trace files into tables by using the fn_trace_gettable function in SQL Server 2000 | 2006-07-26 | +| 8.00.2172 | 2000.80.2172.0 | 910707 FIX: When you query a view that was created by using the VIEW_METADATA option, an access violation may occur in SQL Server 2000 | 2006-07-26 | +| 8.00.2171 | 2000.80.2171.0 | 909369 FIX: Automatic checkpoints on some SQL Server 2000 databases do not run as expected | 2006-07-26 | +| 8.00.2168 | 2000.80.2168.0 | 907813 FIX: An error occurs when you try to access the Analysis Services performance monitor counter object after you apply Windows Server 2003 SP1 | 2006-11-21 | +| 8.00.2166 | 2000.80.2166.0 | 909734 FIX: An error message is logged, and new diagnostics do not capture the thread stack when the SQL Server User Mode Scheduler (UMS) experiences a nonyielding thread in SQL Server 2000 Service Pack 4 | 2006-07-26 | +| 8.00.2162 | 2000.80.2162.0 | 904660 A cumulative hotfix package is available for SQL Server 2000 Service Pack 4 build 2162 | 2006-09-15 | +| 8.00.2159 | 2000.80.2159.0 | 907250 FIX: You may experience concurrency issues when you run the DBCC INDEXDEFRAG statement in SQL Server 2000 | 2006-07-26 | +| 8.00.2156 | 2000.80.2156.0 | 906790 FIX: You receive an error message when you try to rebuild the master database after you have installed hotfix builds in SQL Server 2000 SP4 64-bit | 2006-07-25 | +| 8.00.2151 | 2000.80.2151.0 | 903742 FIX: You receive an "Error: 8526, Severity: 16, State: 2" error message in SQL Profiler when you use SQL Query Analyzer to start or to enlist into a distributed transaction after you have installed SQL Server 2000 SP4 | 2006-07-25 | +| 8.00.2151 | 2000.80.2151.0 | 904244 FIX: Incorrect data is inserted unexpectedly when you perform a bulk copy operation by using the DB-Library API in SQL Server 2000 Service Pack 4 | 2007-06-13 | +| 8.00.2148 | 2000.80.2148.0 | 899430 FIX: An access violation may occur when you run a SELECT query and the NO_BROWSETABLE option is set to ON in Microsoft SQL Server 2000 | 2006-07-25 | +| 8.00.2148 | 2000.80.2148.0 | 899431 FIX: An access violation occurs in the Mssdi98.dll file, and SQL Server crashes when you use SQL Query Analyzer to debug a stored procedure in SQL Server 2000 Service Pack 4 | 2006-07-25 | +| 8.00.2148 | 2000.80.2148.0 | 900390 FIX: The Mssdmn.exe process may use lots of CPU capacity when you perform a SQL Server 2000 full text search of Office Word documents | 2006-06-01 | +| 8.00.2148 | 2000.80.2148.0 | 900404 FIX: The results of the query may be returned much slower than you expect when you run a query that includes a GROUP BY statement in SQL Server 2000 | 2006-06-01 | +| 8.00.2148 | 2000.80.2148.0 | 901212 FIX: You receive an error message if you use the sp_addalias or sp_dropalias procedures when the IMPLICIT_TRANSACTIONS option is set to ON in SQL Server 2000 SP4 | 2006-07-25 | +| 8.00.2148 | 2000.80.2148.0 | 902150 FIX: Some 32-bit applications that use SQL-DMO and SQL-VDI APIs may stop working after you install SQL Server 2000 Service Pack 4 on an Itanium-based computer | 2006-06-01 | +| 8.00.2148 | 2000.80.2148.0 | 902955 FIX: You receive a "Getting registry information" message when you run the Sqldiag.exe utility after you install SQL Server 2000 SP4 | 2006-07-25 | +| 8.00.2147 | 2000.80.2147.0 | 899410 FIX: You may experience slow server performance when you start a trace in an instance of SQL Server 2000 that runs on a computer that has more than four processors | 2006-06-01 | +| 8.00.2145 | 2000.80.2145.0 | 826906 FIX: A query that uses a view that contains a correlated subquery and an aggregate runs slowly | 2005-10-25 | +| 8.00.2145 | 2000.80.2145.0 | 836651 FIX: You receive query results that were not expected when you use both ANSI joins and non-ANSI joins | 2006-06-07 | +| 8.00.2066 | 2000.80.2066.0 | Microsoft Security Bulletin MS12-060 | 2012-08-14 | +| 8.00.2065 | 2000.80.2065.0 | 983808 MS12-027: Description of the security update for Microsoft SQL Server 2000 Service Pack 4 GDR: April 10, 2012 | 2012-04-10 | +| 8.00.2055 | 2000.80.2055.0 | 959420 MS09-004: Vulnerabilities in Microsoft SQL Server could allow remote code execution | 2009-02-10 | +| 8.00.2040 | 2000.80.2040.0 | 899761 FIX: Not all memory is available when AWE is enabled on a computer that is running a 32-bit version of SQL Server 2000 SP4 | 2006-08-15 | +| 8.00.2039 | 2000.80.2039.0 | SQL Server 2000 Service Pack 4 (SP4) | 2005-05-06 | | 8.00.2026 | 2000.80.2026.0 | SQL Server 2000 Service Pack 4 (SP4) Beta | ??? | -| 8.00.1547 | 2000.80.1547.0 | [899410 FIX: You may experience slow server performance when you start a trace in an instance of SQL Server 2000 that runs on a computer that has more than four processors] | 2006-06-01 | -| 8.00.1077 | 2000.80.1077.0 | [983814 MS12-070: Description of the security update for SQL Server 2000 Reporting Services Service Pack 2] | 2012-10-09 | -| 8.00.1037 | 2000.80.1037.0 | [930484 FIX: CPU utilization may approach 100 percent on a computer that is running SQL Server 2000 after you run the BACKUP DATABASE statement or the BACKUP LOG statement] | 2007-02-02 | -| 8.00.1036 | 2000.80.1036.0 | [929410 FIX: Error message when you run a full-text query in SQL Server 2000: "Error: 17883, Severity: 1, State: 0"] | 2007-01-11 | -| 8.00.1035 | 2000.80.1035.0 | [917593 FIX: The "Audit Logout" event does not appear in the trace results file when you run a profiler trace against a linked server instance in SQL Server 2000] | 2006-09-22 | -| 8.00.1034 | 2000.80.1034.0 | [915328 FIX: You may intermittently experience an access violation error when a query is executed in a parallel plan and the execution plan contains either a HASH JOIN operation or a Sort operation in SQL Server 2000] | 2006-08-09 | -| 8.00.1029 | 2000.80.1029.0 | [902852 FIX: Error message when you run an UPDATE statement that uses two JOIN hints to update a table in SQL Server 2000: "Internal SQL Server error"] | 2006-06-01 | -| 8.00.1027 | 2000.80.1027.0 | [900416 FIX: A 17883 error may occur you run a query that uses a hash join in SQL Server 2000] | 2006-07-25 | -| 8.00.1025 | 2000.80.1025.0 | [899428 FIX: You receive incorrect results when you run a query that uses a cross join operator in SQL Server 2000 SP3] | 2006-06-01 | -| 8.00.1025 | 2000.80.1025.0 | [899430 FIX: An access violation may occur when you run a SELECT query and the NO_BROWSETABLE option is set to ON in Microsoft SQL Server 2000] | 2006-07-25 | -| 8.00.1024 | 2000.80.1024.0 | [898709 FIX: Error message when you use SQL Server 2000: "Time out occurred while waiting for buffer latch type 3"] | 2006-07-25 | -| 8.00.1021 | 2000.80.1021.0 | [887700 FIX: Server Network Utility may display incorrect protocol properties in SQL Server 2000] | 2006-07-25 | -| 8.00.1020 | 2000.80.1020.0 | [896985 FIX: The Subscriber may not be able to upload changes to the Publisher when you incrementally add an article to a publication in SQL Server 2000 SP3] | 2006-07-25 | -| 8.00.1019 | 2000.80.1019.0 | [897572 FIX: You may receive a memory-related error message when you repeatedly create and destroy an out-of-process COM object within the same batch or stored procedure in SQL Server 2000] | 2006-06-01 | -| 8.00.1017 | 2000.80.1017.0 | [896425 FIX: The BULK INSERT statement silently skips insert attempts when the data value is NULL and the column is defined as NOT NULL for INT, SMALLINT, and BIGINT data types in SQL Server 2000] | 2006-06-01 | -| 8.00.1014 | 2000.80.1014.0 | [895123 FIX: You may receive error message 701, error message 802, and error message 17803 when many hashed buffers are available in SQL Server 2000] | 2006-06-01 | -| 8.00.1014 | 2000.80.1014.0 | [895187 FIX: You receive an error message when you try to delete records by running a Delete Transact-SQL statement in SQL Server 2000] | 2006-07-25 | -| 8.00.1013 | 2000.80.1013.0 | [891866 FIX: The query runs slower than you expected when you try to parse a query in SQL Server 2000] | 2006-06-01 | -| 8.00.1009 | 2000.80.1009.0 | [894257 FIX: You receive an "Incorrect syntax near ')'" error message when you run a script that was generated by SQL-DMO for an Operator object in SQL Server 2000] | 2006-06-01 | -| 8.00.1007 | 2000.80.1007.0 | [893312 FIX: You may receive a "SQL Server could not spawn process_loginread thread" error message, and a memory leak may occur when you cancel a remote query in SQL Server 2000] | 2006-06-01 | -| 8.00.1003 | 2000.80.1003.0 | [892923 FIX: Differential database backups may not contain database changes in the Page Free Space (PFS) pages in SQL Server 2000] | 2006-06-01 | -| 8.00.1001 | 2000.80.1001.0 | [892205 FIX: You may receive a 17883 error message when SQL Server 2000 performs a very large hash operation] | 2006-06-01 | -| 8.00.1000 | 2000.80.1000.0 | [891585 FIX: Database recovery does not occur, or a user database is marked as suspect in SQL Server 2000] | 2006-06-01 | -| 8.00.997 | 2000.80.997.0 | [891311 FIX: You cannot create new TCP/IP socket based connections after error messages 17882 and 10055 are written to the Microsoft SQL Server 2000 error log] | 2006-07-18 | -| 8.00.996 | 2000.80.996.0 | [891017 FIX: SQL Server 2000 may stop responding to other requests when you perform a large deallocation operation] | 2006-06-01 | -| 8.00.996 | 2000.80.996.0 | [891268 FIX: You receive a 17883 error message and SQL Server 2000 may stop responding to other requests when you perform large in-memory sort operations] | 2006-06-01 | -| 8.00.994 | 2000.80.994.0 | [890942 FIX: Some complex queries are slower after you install SQL Server 2000 Service Pack 2 or SQL Server 2000 Service Pack 3] | 2006-06-01 | -| 8.00.994 | 2000.80.994.0 | [890768 FIX: You experience non-convergence in a replication topology when you unpublish or drop columns from a dynamically filtered publication in SQL Server 2000] | 2006-06-01 | -| 8.00.994 | 2000.80.994.0 | [890767 FIX: You receive a "Server: Msg 107, Level 16, State 3, Procedure TEMP_VIEW_Merge, Line 1" error message when the sum of the length of the published column names in a merge publication exceeds 4,000 characters in SQL Server 2000] | 2006-06-01 | -| 8.00.993 | 2000.80.993.0 | [890925 FIX: The @@ERROR system function may return an incorrect value when you execute a Transact-SQL statement that uses a parallel execution plan in SQL Server 2000 32-bit or in SQL Server 2000 64-bit] | 2006-06-01 | -| 8.00.993 | 2000.80.993.0 | [888444 FIX: You receive a 17883 error in SQL Server 2000 Service Pack 3 or in SQL Server 2000 Service Pack 3a when a worker thread becomes stuck in a registry call] | 2006-06-01 | -| 8.00.993 | 2000.80.993.0 | [890742 FIX: Error message when you use a loopback linked server to run a distributed query in SQL Server 2000: "Could not perform the requested operation because the minimum query memory is not available"] | 2006-05-15 | -| 8.00.991 | 2000.80.991.0 | [889314 FIX: Non-convergence may occur in a merge replication topology if the primary connection to the publisher is disconnected] | 2006-06-01 | -| 8.00.990 | 2000.80.990.0 | [890200 FIX: SQL Server 2000 stops listening for new TCP/IP Socket connections unexpectedly after error message 17882 is written to the SQL Server 2000 error log] | 2006-06-01 | -| 8.00.988 | 2000.80.988.0 | [889166 FIX: You receive a "Msg 3628" error message when you run an inner join query in SQL Server 2000] | 2006-06-01 | -| 8.00.985 | 2000.80.985.0 | [889239 FIX: Start times in the SQL Profiler are different for the Audit:Login and Audit:Logout Events in SQL Server 2000] | 2006-06-01 | -| 8.00.980 | 2000.80.980.0 | [887974 FIX: A fetch on a dynamic cursor can cause unexpected results in SQL Server 2000 Service Pack 3] | 2006-06-01 | -| 8.00.977 | 2000.80.977.0 | [888007 You receive a "The product does not have a prerequisite update installed" error message when you try to install a SQL Server 2000 post-Service Pack 3 hotfix] | 2005-08-31 | -| 8.00.973 | 2000.80.973.0 | [884554 FIX: A SPID stops responding with a NETWORKIO (0x800) waittype in SQL Server Enterprise Manager when SQL Server tries to process a fragmented TDS network packet] | 2006-06-01 | -| 8.00.972 | 2000.80.972.0 | [885290 FIX: An assertion error occurs when you insert data in the same row in a table by using multiple connections to an instance of SQL Server] | 2006-06-01 | -| 8.00.970 | 2000.80.970.0 | [872842 FIX: A CHECKDB statement reports a 2537 corruption error after SQL Server transfers data to a sql_variant column in SQL Server 2000] | 2006-06-01 | -| 8.00.967 | 2000.80.967.0 | [878501 FIX: You may receive an error message when you run a SET IDENTITY_INSERT ON statement on a table and then try to insert a row into the table in SQL Server 2000] | 2006-06-01 | -| 8.00.962 | 2000.80.962.0 | [883415 FIX: A user-defined function returns results that are not correct for a query] | 2006-06-01 | -| 8.00.961 | 2000.80.961.0 | [873446 FIX: An access violation exception may occur when multiple users try to perform data modification operations at the same time that fire triggers that reference a deleted or an inserted table in SQL Server 2000 on a computer that is running SMP] | 2006-06-01 | -| 8.00.959 | 2000.80.959.0 | [878500 FIX: An Audit Object Permission event is not produced when you run a TRUNCATE TABLE statement] | 2006-06-01 | -| 8.00.957 | 2000.80.957.0 | [870994 FIX: An access violation exception may occur when you run a query that uses index names in the WITH INDEX option to specify an index hint] | 2006-06-01 | -| 8.00.955 | 2000.80.955.0 | [867798 FIX: The @date_received parameter of the xp_readmail extended stored procedure incorrectly returns the date and the time that an e-mail message is submitted by the sender in SQL Server 2000] | 2007-01-08 | -| 8.00.954 | 2000.80.954.0 | [843282 FIX: The Osql.exe utility does not run a Transact-SQL script completely if you start the program from a remote session by using a background service and then log off the console session] | 2007-01-05 | -| 8.00.952 | 2000.80.952.0 | [867878 FIX: The Log Reader Agent may cause 17883 error messages] | 2006-06-01 | -| 8.00.952 | 2000.80.952.0 | [867879 FIX: Merge replication non-convergence occurs with SQL Server CE subscribers] | 2006-06-01 | -| 8.00.952 | 2000.80.952.0 | [867880 FIX: Merge Agent may fail with an "Invalid character value for cast specification" error message] | 2006-06-01 | -| 8.00.949 | 2000.80.949.0 | [843266 FIX: Shared page locks can be held until end of the transaction and can cause blocking or performance problems in SQL Server 2000 Service Pack 3 (SP3)] | 2006-06-02 | -| 8.00.948 | 2000.80.948.0 | [843263 FIX: You may receive an 8623 error message when you try to run a complex query on an instance of SQL Server] | 2006-06-01 | -| 8.00.944 | 2000.80.944.0 | [839280 FIX: SQL debugging does not work in Visual Studio .NET after you install Windows XP Service Pack 2] | 2006-06-05 | -| 8.00.937 | 2000.80.937.0 | [841776 FIX: Additional diagnostics have been added to SQL Server 2000 to detect unreported read operation failures] | 2006-06-01 | -| 8.00.936 | 2000.80.936.0 | [841627 FIX: SQL Server 2000 may underestimate the cardinality of a query expression under certain circumstances] | 2006-06-01 | -| 8.00.935 | 2000.80.935.0 | [841401 FIX: You may notice incorrect values for the "Active Transactions" counter when you perform multiple transactions on an instance of SQL Server 2000 that is running on an SMP computer] | 2006-06-01 | -| 8.00.934 | 2000.80.934.0 | [841404 FIX: You may receive a "The query processor could not produce a query plan" error message in SQL Server when you run a query that includes multiple subqueries that use self-joins] | 2006-06-01 | -| 8.00.933 | 2000.80.933.0 | [840856 FIX: The MSSQLServer service exits unexpectedly in SQL Server 2000 Service Pack 3] | 2006-06-02 | -| 8.00.929 | 2000.80.929.0 | [839529 FIX: 8621 error conditions may cause SQL Server 2000 64-bit to close unexpectedly] | 2006-06-01 | -| 8.00.928 | 2000.80.928.0 | [839589 FIX: The thread priority is raised for some threads in a parallel query] | 2006-06-01 | -| 8.00.927 | 2000.80.927.0 | [839688 FIX: Profiler RPC events truncate parameters that have a text data type to 16 characters] | 2006-06-01 | -| 8.00.926 | 2000.80.926.0 | [839523 FIX: An access violation exception may occur when you update a text column by using a stored procedure in SQL Server 2000] | 2006-06-01 | -| 8.00.923 | 2000.80.923.0 | [838460 FIX: The xp_logininfo procedure may fail with error 8198 after you install Q825042 or any hotfix with SQL Server 8.00.0840 or later] | 2006-06-01 | -| 8.00.922 | 2000.80.922.0 | [837970 FIX: You may receive an "Invalid object name..." error message when you run the DBCC CHECKCONSTRAINTS Transact-SQL statement on a table in SQL Server 2000] | 2005-10-25 | -| 8.00.919 | 2000.80.919.0 | [837957 FIX: When you use Transact-SQL cursor variables to perform operations that have large iterations, memory leaks may occur in SQL Server 2000] | 2005-10-25 | -| 8.00.916 | 2000.80.916.0 | [317989 FIX: Sqlakw32.dll May Corrupt SQL Statements] | 2005-09-27 | -| 8.00.915 | 2000.80.915.0 | [837401 FIX: Rows are not successfully inserted into a table when you use the BULK INSERT command to insert rows] | 2005-10-25 | -| 8.00.913 | 2000.80.913.0 | [836651 FIX: You receive query results that were not expected when you use both ANSI joins and non-ANSI joins] | 2006-06-07 | -| 8.00.911 | 2000.80.911.0 | [837957 FIX: When you use Transact-SQL cursor variables to perform operations that have large iterations, memory leaks may occur in SQL Server 2000] | 2005-10-25 | -| 8.00.910 | 2000.80.910.0 | [834798 FIX: SQL Server 2000 may not start if many users try to log in to SQL Server when SQL Server is trying to start] | 2005-10-25 | -| 8.00.908 | 2000.80.908.0 | [834290 FIX: You receive a 644 error message when you run an UPDATE statement and the isolation level is set to READ UNCOMMITTED] | 2005-10-25 | -| 8.00.904 | 2000.80.904.0 | [834453 FIX: The Snapshot Agent may fail after you make schema changes to the underlying tables of a publication] | 2005-04-22 | -| 8.00.892 | 2000.80.892.0 | [833710 FIX: You receive an error message when you try to restore a database backup that spans multiple devices] | 2005-10-25 | -| 8.00.891 | 2000.80.891.0 | [836141 FIX: An access violation exception may occur when SQL Server runs many parallel query processing operations on a multiprocessor computer] | 2005-04-01 | -| 8.00.879 | 2000.80.879.0 | [832977 FIX: The DBCC PSS Command may cause access violations and 17805 errors in SQL Server 2000] | 2005-10-25 | -| 8.00.878 | 2000.80.878.0 | [831950 FIX: You receive error message 3456 when you try to apply a transaction log to a server] | 2005-10-25 | -| 8.00.876 | 2000.80.876.0 | [830912 FIX: Key Names Read from an .Ini File for a Dynamic Properties Task May Be Truncated] | 2005-10-25 | -| 8.00.876 | 2000.80.876.0 | [831997 FIX: An invalid cursor state occurs after you apply Hotfix 8.00.0859 or later in SQL Server 2000] | 2005-10-25 | -| 8.00.876 | 2000.80.876.0 | [831999 FIX: An AWE system uses more memory for sorting or for hashing than a non-AWE system in SQL Server 2000] | 2005-10-25 | -| 8.00.873 | 2000.80.873.0 | [830887 FIX: Some queries that have a left outer join and an IS NULL filter run slower after you install SQL Server 2000 post-SP3 hotfix] | 2005-10-25 | -| 8.00.871 | 2000.80.871.0 | [830767 FIX: SQL Query Analyzer may stop responding when you close a query window or open a file] | 2005-10-25 | -| 8.00.871 | 2000.80.871.0 | [830860 FIX: The performance of a computer that is running SQL Server 2000 degrades when query execution plans against temporary tables remain in the procedure cache] | 2005-10-25 | -| 8.00.870 | 2000.80.870.0 | [830262 FIX: Unconditional Update May Not Hold Key Locks on New Key Values] | 2005-10-25 | -| 8.00.869 | 2000.80.869.0 | [830588 FIX: Access violation when you trace keyset-driven cursors by using SQL Profiler] | 2005-10-25 | -| 8.00.866 | 2000.80.866.0 | [830366 FIX: An access violation occurs in SQL Server 2000 when a high volume of local shared memory connections occur after you install security update MS03-031] | 2006-01-16 | -| 8.00.865 | 2000.80.865.0 | [830395 FIX: An access violation occurs during compilation if the table contains statistics for a computed column] | 2005-10-25 | -| 8.00.865 | 2000.80.865.0 | [828945 FIX: You cannot insert explicit values in an IDENTITY column of a SQL Server table by using the SQLBulkOperations function or the SQLSetPos ODBC function in SQL Server 2000] | 2005-10-25 | -| 8.00.863 | 2000.80.863.0 | [829205 FIX: Query performance may be slow and may be inconsistent when you run a query while another query that contains an IN operator with many values is compiled] | 2005-10-25 | -| 8.00.863 | 2000.80.863.0 | [829444 FIX: A floating point exception occurs during the optimization of a query] | 2005-10-25 | -| 8.00.859 | 2000.80.859.0 | [821334 FIX: Issues that are resolved in SQL Server 2000 build 8.00.0859] | 2005-03-31 | -| 8.00.858 | 2000.80.858.0 | [828637 FIX: Users Can Control the Compensating Change Process in Merge Replication] | 2005-10-25 | -| 8.00.857 | 2000.80.857.0 | [828017 The Knowledge Base (KB) Article You Requested Is Currently Not Available] | ??? | -| 8.00.857 | 2000.80.857.0 | [827714 FIX: A query may fail with retail assertion when you use the NOLOCK hint or the READ UNCOMMITTED isolation level] | 2005-11-23 | -| 8.00.857 | 2000.80.857.0 | [828308 FIX: An Internet Explorer script error occurs when you access metadata information by using DTS in SQL Server Enterprise Manager] | 2005-10-25 | -| 8.00.856 | 2000.80.856.0 | [828096 FIX: Key Locks Are Held Until the End of the Statement for Rows That Do Not Pass Filter Criteria] | 2005-10-25 | -| 8.00.854 | 2000.80.854.0 | [828699 FIX: An Access Violation Occurs When You Run DBCC UPDATEUSAGE on a Database That Has Many Objects] | 2005-10-25 | -| 8.00.852 | 2000.80.852.0 | [830466 FIX: You may receive an "Internal SQL Server error" error message when you run a Transact-SQL SELECT statement on a view that has many subqueries in SQL Server 2000] | 2005-04-01 | -| 8.00.852 | 2000.80.852.0 | [827954 FIX: Slow Execution Times May Occur When You Run DML Statements Against Tables That Have Cascading Referential Integrity] | 2005-10-25 | -| 8.00.851 | 2000.80.851.0 | [826754 FIX: A Deadlock Occurs If You Run an Explicit UPDATE STATISTICS Command] | 2005-10-25 | -| 8.00.850 | 2000.80.850.0 | [826860 FIX: Linked Server Query May Return NULL If It Is Performed Through a Keyset Cursor] | 2005-10-25 | -| 8.00.850 | 2000.80.850.0 | [826815 FIX: You receive an 8623 error message in SQL Server when you try to run a query that has multiple correlated subqueries] | 2005-10-25 | -| 8.00.850 | 2000.80.850.0 | [826906 FIX: A query that uses a view that contains a correlated subquery and an aggregate runs slowly] | 2005-10-25 | -| 8.00.848 | 2000.80.848.0 | [826822 FIX: A Member of the db_accessadmin Fixed Database Role Can Create an Alias for the dbo Special User] | 2005-10-25 | -| 8.00.847 | 2000.80.847.0 | [826433 PRB: Additional SQL Server Diagnostics Added to Detect Unreported I/O Problems] | 2005-10-25 | -| 8.00.845 | 2000.80.845.0 | [826364 FIX: A Query with a LIKE Comparison Results in a Non-Optimal Query Plan When You Use a Hungarian SQL Server Collation] | 2005-10-05 | -| 8.00.845 | 2000.80.845.0 | [825854 FIX: No Exclusive Locks May Be Taken If the DisAllowsPageLocks Value Is Set to True] | 2005-10-25 | -| 8.00.844 | 2000.80.844.0 | [826080 FIX: SQL Server 2000 protocol encryption applies to JDBC clients] | 2006-10-17 | -| 8.00.842 | 2000.80.842.0 | [825043 FIX: Rows are unexpectedly deleted when you run a distributed query to delete or to update a linked server table] | 2005-10-25 | -| 8.00.841 | 2000.80.841.0 | [825225 FIX: You receive an error message when you run a parallel query that uses an aggregation function or the GROUP BY clause] | 2005-10-25 | -| 8.00.840 | 2000.80.840.0 | [319477 FIX: Extremely Large Number of User Tables on AWE System May Cause BPool::Map Errors] | 2005-09-27 | -| 8.00.840 | 2000.80.840.0 | [319477 FIX: Extremely Large Number of User Tables on AWE System May Cause BPool::Map Errors] | 2005-09-27 | -| 8.00.839 | 2000.80.839.0 | [823877 FIX: An Access Violation May Occur When You Run a Query That Contains 32,000 or More OR Clauses] | 2005-10-25 | -| 8.00.839 | 2000.80.839.0 | [824027 FIX: A Cursor with a Large Object Parameter May Cause an Access Violation on CStmtCond::XretExecute] | 2005-10-25 | -| 8.00.837 | 2000.80.837.0 | [820788 FIX: Delayed domain authentication may cause SQL Server to stop responding] | 2005-10-25 | -| 8.00.837 | 2000.80.837.0 | [821741 FIX: Lock monitor exception in DeadlockMonitor::ResolveDeadlock] | 2005-10-25 | -| 8.00.837 | 2000.80.837.0 | [821548 FIX: A Parallel Query May Generate an Access Violation After You Install SQL Server 2000 SP3] | 2005-10-25 | -| 8.00.837 | 2000.80.837.0 | [821740 FIX: MS DTC Transaction Commit Operation Blocks Itself] | 2005-10-25 | -| 8.00.837 | 2000.80.837.0 | [823514 FIX: Build 8.00.0837: A query that contains a correlated subquery runs slowly] | 2005-10-25 | -| 8.00.819 | 2000.80.819.0 | [826161 FIX: You are prompted for password confirmation after you change a standard SQL Server login] | 2005-10-25 | -| 8.00.818 | 2000.80.818.0 | [821277 MS03-031: Security patch for SQL Server 2000 Service Pack 3] | 2006-01-09 | -| 8.00.818 | 2000.80.818.0 | [821337 FIX: Localized versions of SQL Mail and the Web Assistant Wizard may not work as expected in SQL Server 2000 64 bit] | 2005-03-16 | -| 8.00.818 | 2000.80.818.0 | [818388 FIX: A Transact-SQL Statement That Is Embedded in the Database Name Runs with System Administrator Permissions] | 2005-02-10 | -| 8.00.818 | 2000.80.818.0 | [826161 FIX: You are prompted for password confirmation after you change a standard SQL Server login] | 2005-10-25 | -| 8.00.818 | 2000.80.818.0 | [821280 MS03-031: Security Patch for SQL Server 2000 64-bit] | 2006-03-14 | -| 8.00.816 | 2000.80.816.0 | [818766 FIX: Intense SQL Server activity results in spinloop wait] | 2005-10-25 | -| 8.00.814 | 2000.80.814.0 | [819662 FIX: Distribution Cleanup Agent Incorrectly Cleans Up Entries for Anonymous Subscribers] | 2005-10-25 | -| 8.00.811 | 2000.80.811.0 | [819248 FIX: An access violation exception may occur when you insert a row in a table that is referenced by indexed views in SQL Server 2000] | 2006-04-03 | -| 8.00.811 | 2000.80.811.0 | [819662 FIX: Distribution Cleanup Agent Incorrectly Cleans Up Entries for Anonymous Subscribers] | 2005-10-25 | -| 8.00.811 | 2000.80.811.0 | [818897 FIX: Invalid TDS Sent to SQL Server Results in Access Violation] | 2005-10-25 | -| 8.00.807 | 2000.80.807.0 | [818899 FIX: Error Message 3628 May Occur When You Run a Complex Query] | 2005-10-25 | -| 8.00.804 | 2000.80.804.0 | [818729 FIX: Internal Query Processor Error 8623 When Microsoft SQL Server Tries to Compile a Plan for a Complex Query] | 2005-10-25 | -| 8.00.801 | 2000.80.801.0 | [818540 FIX: SQL Server Enterprise Manager unexpectedly quits when you modify a DTS package] | 2006-01-26 | -| 8.00.800 | 2000.80.800.0 | [818414 FIX: The Sqldumper.exe File Does Not Generate a Userdump File When It Runs Against a Windows Service] | 2005-09-27 | -| 8.00.800 | 2000.80.800.0 | [818097 FIX: An Access Violation May Occur When You Run DBCC DBREINDEX on a Table That Has Hypothetical Indexes] | 2005-09-27 | -| 8.00.800 | 2000.80.800.0 | [818188 FIX: Query on the sysmembers Virtual Table May Fail with a Stack Overflow] | 2005-09-27 | -| 8.00.798 | 2000.80.798.0 | [817464 FIX: Using Sp_executesql in Merge Agent Operations] | 2005-09-27 | -| 8.00.794 | 2000.80.794.0 | [817464 FIX: Using Sp_executesql in Merge Agent Operations] | 2005-09-27 | -| 8.00.794 | 2000.80.794.0 | [813524 FIX: OLE DB conversion errors may occur after you select a literal string that represents datetime data as a column] | 2005-09-27 | -| 8.00.794 | 2000.80.794.0 | [816440 FIX: Error 8623 is Raised When SQL Server Compiles a Complex Query] | 2005-09-27 | -| 8.00.794 | 2000.80.794.0 | [817709 FIX: SQL Server 2000 might produce an incorrect cardinality estimate for outer joins] | 2005-02-11 | -| 8.00.791 | 2000.80.791.0 | [815249 FIX: Performance of a query that is run from a client program on a SQL Server SP3 database is slow after you restart the instance of SQL Server] | 2005-09-27 | -| 8.00.790 | 2000.80.790.0 | [817081 FIX: You receive an error message when you use the SQL-DMO BulkCopy object to import data into a SQL Server table] | 2005-09-27 | -| 8.00.789 | 2000.80.789.0 | [816840 FIX: Error 17883 May Display Message Text That Is Not Correct] | 2005-09-27 | -| 8.00.788 | 2000.80.788.0 | [816985 FIX: You cannot install SQL Server 2000 SP3 on the Korean version of SQL Server 2000] | 2005-09-27 | -| 8.00.781 | 2000.80.781.0 | [815057 FIX: SQL Server 2000 Uninstall Option Does Not Remove All Files] | 2005-09-27 | -| 8.00.780 | 2000.80.780.0 | [816039 FIX: Code Point Comparison Semantics for SQL_Latin1_General_Cp850_BIN Collation] | 2005-09-27 | -| 8.00.780 | 2000.80.780.0 | [816084 FIX: sysindexes.statblob Column May Be Corrupted After You Run a DBCC DBREINDEX Statement] | 2005-09-27 | -| 8.00.780 | 2000.80.780.0 | [810185 SQL Server 2000 hotfix update for SQL Server 2000 Service Pack 3 and 3a] | 2006-10-10 | -| 8.00.779 | 2000.80.779.0 | [814035 FIX: A Full-Text Population Fails After You Apply SQL Server 2000 Service Pack 3] | 2005-09-27 | -| 8.00.776 | 2000.80.776.0 | [Unidentified] | ??? | -| 8.00.775 | 2000.80.775.0 | [815115 FIX: A DTS package that uses global variables ignores an error message raised by RAISERROR] | 2005-09-27 | -| 8.00.769 | 2000.80.769.0 | [814889 FIX: A DELETE statement with a JOIN might fail and you receive a 625 error] | 2005-09-27 | -| 8.00.769 | 2000.80.769.0 | [814893 FIX: Error Message: "Insufficient key column information for updating" Occurs in SQL Server 2000 SP3] | 2005-09-27 | -| 8.00.765 | 2000.80.765.0 | [810163 FIX: An Access Violation Occurs if an sp_cursoropen Call References a Parameter That Is Not Defined] | 2005-09-27 | -| 8.00.765 | 2000.80.765.0 | [810688 FIX: Merge Agent Can Resend Changes for Filtered Publications] | 2005-09-27 | -| 8.00.765 | 2000.80.765.0 | [811611 FIX: Reinitialized SQL Server CE 2.0 subscribers may experience data loss and non-convergence] | 2005-09-27 | -| 8.00.765 | 2000.80.765.0 | [813769 FIX: You May Experience Slow Performance When You Debug a SQL Server Service] | 2005-09-27 | -| 8.00.763 | 2000.80.763.0 | [814113 FIX: DTS Designer may generate an access violation after you install SQL Server 2000 Service Pack 3] | 2005-09-27 | -| 8.00.762 | 2000.80.762.0 | [814032 FIX: Merge publications cannot synchronize on SQL Server 2000 Service Pack 3] | 2005-09-27 | -| 8.00.760 | 2000.80.760.0 | [SQL Server 2000 Service Pack 3 (SP3 / SP3a)] | 2003-08-27 | -| 8.00.743 | 2000.80.743.0 | [818406 FIX: A Transact-SQL query that uses views may fail unexpectedly in SQL Server 2000 SP2] | 2005-10-18 | -| 8.00.743 | 2000.80.743.0 | [818763 FIX: Intense SQL Server Activity Results in Spinloop Wait in SQL Server 2000 Service Pack 2] | 2005-10-25 | -| 8.00.741 | 2000.80.741.0 | [818096 FIX: Many Extent Lock Time-outs May Occur During Extent Allocation] | 2005-02-10 | -| 8.00.736 | 2000.80.736.0 | [816937 FIX: A memory leak may occur when you use the sp_OAMethod stored procedure to call a method of a COM object] | 2005-09-27 | -| 8.00.735 | 2000.80.735.0 | [814889 FIX: A DELETE statement with a JOIN might fail and you receive a 625 error] | 2005-09-27 | -| 8.00.733 | 2000.80.733.0 | [813759 FIX: A Large Number of NULL Values in Join Columns Result in Slow Query Performance] | 2005-09-27 | -| 8.00.730 | 2000.80.730.0 | [813769 FIX: You May Experience Slow Performance When You Debug a SQL Server Service] | 2005-09-27 | -| 8.00.728 | 2000.80.728.0 | [814460 FIX: Merge Replication with Alternate Synchronization Partners May Not Succeed After You Change the Retention Period] | 2005-09-27 | -| 8.00.725 | 2000.80.725.0 | [812995 FIX: A Query with an Aggregate Function May Fail with a 3628 Error] | 2005-09-27 | -| 8.00.725 | 2000.80.725.0 | [813494 FIX: Distribution Agent Fails with "Violation of Primary Key Constraint" Error Message] | 2005-09-27 | -| 8.00.723 | 2000.80.723.0 | [812798 FIX: A UNION ALL View May Not Use Index If Partitions Are Removed at Compile Time] | 2005-09-27 | -| 8.00.721 | 2000.80.721.0 | [812250 FIX: Indexed View May Cause a Handled Access Violation in CIndex::SetLevel1Names] | 2005-09-27 | -| 8.00.721 | 2000.80.721.0 | [812393 FIX: Update or Delete Statement Fails with Error 1203 During Row Lock Escalation] | 2005-09-27 | -| 8.00.718 | 2000.80.718.0 | [811703 FIX: Unexpected results from partial aggregations based on conversions] | 2005-09-27 | -| 8.00.715 | 2000.80.715.0 | [810688 FIX: Merge Agent Can Resend Changes for Filtered Publications] | 2005-09-27 | -| 8.00.715 | 2000.80.715.0 | [811611 FIX: Reinitialized SQL Server CE 2.0 subscribers may experience data loss and non-convergence] | 2005-09-27 | -| 8.00.714 | 2000.80.714.0 | [811478 FIX: Restoring a SQL Server 7.0 database backup in SQL Server 2000 Service Pack 2 (SP2) may cause an assertion error in the Xdes.cpp file] | 2005-10-18 | -| 8.00.713 | 2000.80.713.0 | [811205 FIX: An error message occurs when you perform a database or a file SHRINK operation] | 2005-09-27 | -| 8.00.710 | 2000.80.710.0 | [811052 FIX: Latch Time-Out Message 845 Occurs When You Perform a Database or File SHRINK Operation] | 2005-09-27 | -| 8.00.705 | 2000.80.705.0 | [810920 FIX: The JOIN queries in the triggers that involve the inserted table or the deleted table may return results that are not consistent] | 2005-09-27 | -| 8.00.703 | 2000.80.703.0 | [810526 FIX: Cursors That Have a Long Lifetime May Cause Memory Fragmentation] | 2005-09-27 | -| 8.00.702 | 2000.80.702.0 | [328551 FIX: Concurrency enhancements for the tempdb database] | 2006-07-19 | -| 8.00.701 | 2000.80.701.0 | [810026 FIX: A DELETE Statement with a Self-Join May Fail and You Receive a 625 Error] | 2005-09-27 | -| 8.00.701 | 2000.80.701.0 | [810163 FIX: An Access Violation Occurs if an sp_cursoropen Call References a Parameter That Is Not Defined] | 2005-09-27 | -| 8.00.700 | 2000.80.700.0 | [810072 FIX: Merge Replication Reconciler Stack Overflow] | 2005-09-27 | -| 8.00.696 | 2000.80.696.0 | [810052 FIX: A Memory Leak Occurs When Cursors Are Opened During a Connection] | 2005-09-27 | -| 8.00.696 | 2000.80.696.0 | [810010 FIX: The fn_get_sql System Table Function May Cause Various Handled Access Violations] | 2005-09-27 | -| 8.00.695 | 2000.80.695.0 | [331885 FIX: Update/Delete Statement Fails with Error 1203 During Page Lock Escalation] | 2005-09-27 | -| 8.00.695 | 2000.80.695.0 | [331965 FIX: The xp_readmail Extended Stored Procedure Overwrites Attachment That Already Exists] | 2005-02-10 | -| 8.00.695 | 2000.80.695.0 | [331968 FIX: The xp_readmail and xp_findnextmsg Extended Stored Procedures Do Not Read Mail in Time Received Order] | 2005-02-10 | -| 8.00.693 | 2000.80.693.0 | [330212 FIX: Parallel logical operation returns results that are not consistent] | 2005-09-27 | -| 8.00.690 | 2000.80.690.0 | [311104 FIX: The SELECT Statement with Parallelism Enabled May Cause an Assertion] | 2005-10-12 | -| 8.00.689 | 2000.80.689.0 | [329499 FIX: Replication Removed from Database After Restore WITH RECOVERY] | 2005-10-11 | -| 8.00.688 | 2000.80.688.0 | [329487 FIX: Transaction Log Restore Fails with Message 3456] | 2005-10-11 | -| 8.00.686 | 2000.80.686.0 | [316333 SQL Server 2000 Security Update for Service Pack 2] | 2006-11-24 | -| 8.00.682 | 2000.80.682.0 | [319851 FIX: Assertion and Error Message 3314 Occurs If You Try to Roll Back a Text Operation with READ UNCOMMITTED] | 2005-10-18 | -| 8.00.679 | 2000.80.679.0 | [316333 SQL Server 2000 Security Update for Service Pack 2] | 2006-11-24 | -| 8.00.678 | 2000.80.678.0 | [328354 FIX: A RESTORE DATABASE WITH RECOVERY Statement Can Fail with Error 9003 or Error 9004] | 2005-09-27 | +| 8.00.1547 | 2000.80.1547.0 | 899410 FIX: You may experience slow server performance when you start a trace in an instance of SQL Server 2000 that runs on a computer that has more than four processors | 2006-06-01 | +| 8.00.1077 | 2000.80.1077.0 | 983814 MS12-070: Description of the security update for SQL Server 2000 Reporting Services Service Pack 2 | 2012-10-09 | +| 8.00.1037 | 2000.80.1037.0 | 930484 FIX: CPU utilization may approach 100 percent on a computer that is running SQL Server 2000 after you run the BACKUP DATABASE statement or the BACKUP LOG statement | 2007-02-02 | +| 8.00.1036 | 2000.80.1036.0 | 929410 FIX: Error message when you run a full-text query in SQL Server 2000: "Error: 17883, Severity: 1, State: 0" | 2007-01-11 | +| 8.00.1035 | 2000.80.1035.0 | 917593 FIX: The "Audit Logout" event does not appear in the trace results file when you run a profiler trace against a linked server instance in SQL Server 2000 | 2006-09-22 | +| 8.00.1034 | 2000.80.1034.0 | 915328 FIX: You may intermittently experience an access violation error when a query is executed in a parallel plan and the execution plan contains either a HASH JOIN operation or a Sort operation in SQL Server 2000 | 2006-08-09 | +| 8.00.1029 | 2000.80.1029.0 | 902852 FIX: Error message when you run an UPDATE statement that uses two JOIN hints to update a table in SQL Server 2000: "Internal SQL Server error" | 2006-06-01 | +| 8.00.1027 | 2000.80.1027.0 | 900416 FIX: A 17883 error may occur you run a query that uses a hash join in SQL Server 2000 | 2006-07-25 | +| 8.00.1025 | 2000.80.1025.0 | 899428 FIX: You receive incorrect results when you run a query that uses a cross join operator in SQL Server 2000 SP3 | 2006-06-01 | +| 8.00.1025 | 2000.80.1025.0 | 899430 FIX: An access violation may occur when you run a SELECT query and the NO_BROWSETABLE option is set to ON in Microsoft SQL Server 2000 | 2006-07-25 | +| 8.00.1024 | 2000.80.1024.0 | 898709 FIX: Error message when you use SQL Server 2000: "Time out occurred while waiting for buffer latch type 3" | 2006-07-25 | +| 8.00.1021 | 2000.80.1021.0 | 887700 FIX: Server Network Utility may display incorrect protocol properties in SQL Server 2000 | 2006-07-25 | +| 8.00.1020 | 2000.80.1020.0 | 896985 FIX: The Subscriber may not be able to upload changes to the Publisher when you incrementally add an article to a publication in SQL Server 2000 SP3 | 2006-07-25 | +| 8.00.1019 | 2000.80.1019.0 | 897572 FIX: You may receive a memory-related error message when you repeatedly create and destroy an out-of-process COM object within the same batch or stored procedure in SQL Server 2000 | 2006-06-01 | +| 8.00.1017 | 2000.80.1017.0 | 896425 FIX: The BULK INSERT statement silently skips insert attempts when the data value is NULL and the column is defined as NOT NULL for INT, SMALLINT, and BIGINT data types in SQL Server 2000 | 2006-06-01 | +| 8.00.1014 | 2000.80.1014.0 | 895123 FIX: You may receive error message 701, error message 802, and error message 17803 when many hashed buffers are available in SQL Server 2000 | 2006-06-01 | +| 8.00.1014 | 2000.80.1014.0 | 895187 FIX: You receive an error message when you try to delete records by running a Delete Transact-SQL statement in SQL Server 2000 | 2006-07-25 | +| 8.00.1013 | 2000.80.1013.0 | 891866 FIX: The query runs slower than you expected when you try to parse a query in SQL Server 2000 | 2006-06-01 | +| 8.00.1009 | 2000.80.1009.0 | 894257 FIX: You receive an "Incorrect syntax near ')'" error message when you run a script that was generated by SQL-DMO for an Operator object in SQL Server 2000 | 2006-06-01 | +| 8.00.1007 | 2000.80.1007.0 | 893312 FIX: You may receive a "SQL Server could not spawn process_loginread thread" error message, and a memory leak may occur when you cancel a remote query in SQL Server 2000 | 2006-06-01 | +| 8.00.1003 | 2000.80.1003.0 | 892923 FIX: Differential database backups may not contain database changes in the Page Free Space (PFS) pages in SQL Server 2000 | 2006-06-01 | +| 8.00.1001 | 2000.80.1001.0 | 892205 FIX: You may receive a 17883 error message when SQL Server 2000 performs a very large hash operation | 2006-06-01 | +| 8.00.1000 | 2000.80.1000.0 | 891585 FIX: Database recovery does not occur, or a user database is marked as suspect in SQL Server 2000 | 2006-06-01 | +| 8.00.997 | 2000.80.997.0 | 891311 FIX: You cannot create new TCP/IP socket based connections after error messages 17882 and 10055 are written to the Microsoft SQL Server 2000 error log | 2006-07-18 | +| 8.00.996 | 2000.80.996.0 | 891017 FIX: SQL Server 2000 may stop responding to other requests when you perform a large deallocation operation | 2006-06-01 | +| 8.00.996 | 2000.80.996.0 | 891268 FIX: You receive a 17883 error message and SQL Server 2000 may stop responding to other requests when you perform large in-memory sort operations | 2006-06-01 | +| 8.00.994 | 2000.80.994.0 | 890942 FIX: Some complex queries are slower after you install SQL Server 2000 Service Pack 2 or SQL Server 2000 Service Pack 3 | 2006-06-01 | +| 8.00.994 | 2000.80.994.0 | 890768 FIX: You experience non-convergence in a replication topology when you unpublish or drop columns from a dynamically filtered publication in SQL Server 2000 | 2006-06-01 | +| 8.00.994 | 2000.80.994.0 | 890767 FIX: You receive a "Server: Msg 107, Level 16, State 3, Procedure TEMP_VIEW_Merge, Line 1" error message when the sum of the length of the published column names in a merge publication exceeds 4,000 characters in SQL Server 2000 | 2006-06-01 | +| 8.00.993 | 2000.80.993.0 | 890925 FIX: The @@ERROR system function may return an incorrect value when you execute a Transact-SQL statement that uses a parallel execution plan in SQL Server 2000 32-bit or in SQL Server 2000 64-bit | 2006-06-01 | +| 8.00.993 | 2000.80.993.0 | 888444 FIX: You receive a 17883 error in SQL Server 2000 Service Pack 3 or in SQL Server 2000 Service Pack 3a when a worker thread becomes stuck in a registry call | 2006-06-01 | +| 8.00.993 | 2000.80.993.0 | 890742 FIX: Error message when you use a loopback linked server to run a distributed query in SQL Server 2000: "Could not perform the requested operation because the minimum query memory is not available" | 2006-05-15 | +| 8.00.991 | 2000.80.991.0 | 889314 FIX: Non-convergence may occur in a merge replication topology if the primary connection to the publisher is disconnected | 2006-06-01 | +| 8.00.990 | 2000.80.990.0 | 890200 FIX: SQL Server 2000 stops listening for new TCP/IP Socket connections unexpectedly after error message 17882 is written to the SQL Server 2000 error log | 2006-06-01 | +| 8.00.988 | 2000.80.988.0 | 889166 FIX: You receive a "Msg 3628" error message when you run an inner join query in SQL Server 2000 | 2006-06-01 | +| 8.00.985 | 2000.80.985.0 | 889239 FIX: Start times in the SQL Profiler are different for the Audit:Login and Audit:Logout Events in SQL Server 2000 | 2006-06-01 | +| 8.00.980 | 2000.80.980.0 | 887974 FIX: A fetch on a dynamic cursor can cause unexpected results in SQL Server 2000 Service Pack 3 | 2006-06-01 | +| 8.00.977 | 2000.80.977.0 | 888007 You receive a "The product does not have a prerequisite update installed" error message when you try to install a SQL Server 2000 post-Service Pack 3 hotfix | 2005-08-31 | +| 8.00.973 | 2000.80.973.0 | 884554 FIX: A SPID stops responding with a NETWORKIO (0x800) waittype in SQL Server Enterprise Manager when SQL Server tries to process a fragmented TDS network packet | 2006-06-01 | +| 8.00.972 | 2000.80.972.0 | 885290 FIX: An assertion error occurs when you insert data in the same row in a table by using multiple connections to an instance of SQL Server | 2006-06-01 | +| 8.00.970 | 2000.80.970.0 | 872842 FIX: A CHECKDB statement reports a 2537 corruption error after SQL Server transfers data to a sql_variant column in SQL Server 2000 | 2006-06-01 | +| 8.00.967 | 2000.80.967.0 | 878501 FIX: You may receive an error message when you run a SET IDENTITY_INSERT ON statement on a table and then try to insert a row into the table in SQL Server 2000 | 2006-06-01 | +| 8.00.962 | 2000.80.962.0 | 883415 FIX: A user-defined function returns results that are not correct for a query | 2006-06-01 | +| 8.00.961 | 2000.80.961.0 | 873446 FIX: An access violation exception may occur when multiple users try to perform data modification operations at the same time that fire triggers that reference a deleted or an inserted table in SQL Server 2000 on a computer that is running SMP | 2006-06-01 | +| 8.00.959 | 2000.80.959.0 | 878500 FIX: An Audit Object Permission event is not produced when you run a TRUNCATE TABLE statement | 2006-06-01 | +| 8.00.957 | 2000.80.957.0 | 870994 FIX: An access violation exception may occur when you run a query that uses index names in the WITH INDEX option to specify an index hint | 2006-06-01 | +| 8.00.955 | 2000.80.955.0 | 867798 FIX: The @date_received parameter of the xp_readmail extended stored procedure incorrectly returns the date and the time that an e-mail message is submitted by the sender in SQL Server 2000 | 2007-01-08 | +| 8.00.954 | 2000.80.954.0 | 843282 FIX: The Osql.exe utility does not run a Transact-SQL script completely if you start the program from a remote session by using a background service and then log off the console session | 2007-01-05 | +| 8.00.952 | 2000.80.952.0 | 867878 FIX: The Log Reader Agent may cause 17883 error messages | 2006-06-01 | +| 8.00.952 | 2000.80.952.0 | 867879 FIX: Merge replication non-convergence occurs with SQL Server CE subscribers | 2006-06-01 | +| 8.00.952 | 2000.80.952.0 | 867880 FIX: Merge Agent may fail with an "Invalid character value for cast specification" error message | 2006-06-01 | +| 8.00.949 | 2000.80.949.0 | 843266 FIX: Shared page locks can be held until end of the transaction and can cause blocking or performance problems in SQL Server 2000 Service Pack 3 (SP3) | 2006-06-02 | +| 8.00.948 | 2000.80.948.0 | 843263 FIX: You may receive an 8623 error message when you try to run a complex query on an instance of SQL Server | 2006-06-01 | +| 8.00.944 | 2000.80.944.0 | 839280 FIX: SQL debugging does not work in Visual Studio .NET after you install Windows XP Service Pack 2 | 2006-06-05 | +| 8.00.937 | 2000.80.937.0 | 841776 FIX: Additional diagnostics have been added to SQL Server 2000 to detect unreported read operation failures | 2006-06-01 | +| 8.00.936 | 2000.80.936.0 | 841627 FIX: SQL Server 2000 may underestimate the cardinality of a query expression under certain circumstances | 2006-06-01 | +| 8.00.935 | 2000.80.935.0 | 841401 FIX: You may notice incorrect values for the "Active Transactions" counter when you perform multiple transactions on an instance of SQL Server 2000 that is running on an SMP computer | 2006-06-01 | +| 8.00.934 | 2000.80.934.0 | 841404 FIX: You may receive a "The query processor could not produce a query plan" error message in SQL Server when you run a query that includes multiple subqueries that use self-joins | 2006-06-01 | +| 8.00.933 | 2000.80.933.0 | 840856 FIX: The MSSQLServer service exits unexpectedly in SQL Server 2000 Service Pack 3 | 2006-06-02 | +| 8.00.929 | 2000.80.929.0 | 839529 FIX: 8621 error conditions may cause SQL Server 2000 64-bit to close unexpectedly | 2006-06-01 | +| 8.00.928 | 2000.80.928.0 | 839589 FIX: The thread priority is raised for some threads in a parallel query | 2006-06-01 | +| 8.00.927 | 2000.80.927.0 | 839688 FIX: Profiler RPC events truncate parameters that have a text data type to 16 characters | 2006-06-01 | +| 8.00.926 | 2000.80.926.0 | 839523 FIX: An access violation exception may occur when you update a text column by using a stored procedure in SQL Server 2000 | 2006-06-01 | +| 8.00.923 | 2000.80.923.0 | 838460 FIX: The xp_logininfo procedure may fail with error 8198 after you install Q825042 or any hotfix with SQL Server 8.00.0840 or later | 2006-06-01 | +| 8.00.922 | 2000.80.922.0 | 837970 FIX: You may receive an "Invalid object name..." error message when you run the DBCC CHECKCONSTRAINTS Transact-SQL statement on a table in SQL Server 2000 | 2005-10-25 | +| 8.00.919 | 2000.80.919.0 | 837957 FIX: When you use Transact-SQL cursor variables to perform operations that have large iterations, memory leaks may occur in SQL Server 2000 | 2005-10-25 | +| 8.00.916 | 2000.80.916.0 | 317989 FIX: Sqlakw32.dll May Corrupt SQL Statements | 2005-09-27 | +| 8.00.915 | 2000.80.915.0 | 837401 FIX: Rows are not successfully inserted into a table when you use the BULK INSERT command to insert rows | 2005-10-25 | +| 8.00.913 | 2000.80.913.0 | 836651 FIX: You receive query results that were not expected when you use both ANSI joins and non-ANSI joins | 2006-06-07 | +| 8.00.911 | 2000.80.911.0 | 837957 FIX: When you use Transact-SQL cursor variables to perform operations that have large iterations, memory leaks may occur in SQL Server 2000 | 2005-10-25 | +| 8.00.910 | 2000.80.910.0 | 834798 FIX: SQL Server 2000 may not start if many users try to log in to SQL Server when SQL Server is trying to start | 2005-10-25 | +| 8.00.908 | 2000.80.908.0 | 834290 FIX: You receive a 644 error message when you run an UPDATE statement and the isolation level is set to READ UNCOMMITTED | 2005-10-25 | +| 8.00.904 | 2000.80.904.0 | 834453 FIX: The Snapshot Agent may fail after you make schema changes to the underlying tables of a publication | 2005-04-22 | +| 8.00.892 | 2000.80.892.0 | 833710 FIX: You receive an error message when you try to restore a database backup that spans multiple devices | 2005-10-25 | +| 8.00.891 | 2000.80.891.0 | 836141 FIX: An access violation exception may occur when SQL Server runs many parallel query processing operations on a multiprocessor computer | 2005-04-01 | +| 8.00.879 | 2000.80.879.0 | 832977 FIX: The DBCC PSS Command may cause access violations and 17805 errors in SQL Server 2000 | 2005-10-25 | +| 8.00.878 | 2000.80.878.0 | 831950 FIX: You receive error message 3456 when you try to apply a transaction log to a server | 2005-10-25 | +| 8.00.876 | 2000.80.876.0 | 830912 FIX: Key Names Read from an .Ini File for a Dynamic Properties Task May Be Truncated | 2005-10-25 | +| 8.00.876 | 2000.80.876.0 | 831997 FIX: An invalid cursor state occurs after you apply Hotfix 8.00.0859 or later in SQL Server 2000 | 2005-10-25 | +| 8.00.876 | 2000.80.876.0 | 831999 FIX: An AWE system uses more memory for sorting or for hashing than a non-AWE system in SQL Server 2000 | 2005-10-25 | +| 8.00.873 | 2000.80.873.0 | 830887 FIX: Some queries that have a left outer join and an IS NULL filter run slower after you install SQL Server 2000 post-SP3 hotfix | 2005-10-25 | +| 8.00.871 | 2000.80.871.0 | 830767 FIX: SQL Query Analyzer may stop responding when you close a query window or open a file | 2005-10-25 | +| 8.00.871 | 2000.80.871.0 | 830860 FIX: The performance of a computer that is running SQL Server 2000 degrades when query execution plans against temporary tables remain in the procedure cache | 2005-10-25 | +| 8.00.870 | 2000.80.870.0 | 830262 FIX: Unconditional Update May Not Hold Key Locks on New Key Values | 2005-10-25 | +| 8.00.869 | 2000.80.869.0 | 830588 FIX: Access violation when you trace keyset-driven cursors by using SQL Profiler | 2005-10-25 | +| 8.00.866 | 2000.80.866.0 | 830366 FIX: An access violation occurs in SQL Server 2000 when a high volume of local shared memory connections occur after you install security update MS03-031 | 2006-01-16 | +| 8.00.865 | 2000.80.865.0 | 830395 FIX: An access violation occurs during compilation if the table contains statistics for a computed column | 2005-10-25 | +| 8.00.865 | 2000.80.865.0 | 828945 FIX: You cannot insert explicit values in an IDENTITY column of a SQL Server table by using the SQLBulkOperations function or the SQLSetPos ODBC function in SQL Server 2000 | 2005-10-25 | +| 8.00.863 | 2000.80.863.0 | 829205 FIX: Query performance may be slow and may be inconsistent when you run a query while another query that contains an IN operator with many values is compiled | 2005-10-25 | +| 8.00.863 | 2000.80.863.0 | 829444 FIX: A floating point exception occurs during the optimization of a query | 2005-10-25 | +| 8.00.859 | 2000.80.859.0 | 821334 FIX: Issues that are resolved in SQL Server 2000 build 8.00.0859 | 2005-03-31 | +| 8.00.858 | 2000.80.858.0 | 828637 FIX: Users Can Control the Compensating Change Process in Merge Replication | 2005-10-25 | +| 8.00.857 | 2000.80.857.0 | 828017 The Knowledge Base (KB) Article You Requested Is Currently Not Available | ??? | +| 8.00.857 | 2000.80.857.0 | 827714 FIX: A query may fail with retail assertion when you use the NOLOCK hint or the READ UNCOMMITTED isolation level | 2005-11-23 | +| 8.00.857 | 2000.80.857.0 | 828308 FIX: An Internet Explorer script error occurs when you access metadata information by using DTS in SQL Server Enterprise Manager | 2005-10-25 | +| 8.00.856 | 2000.80.856.0 | 828096 FIX: Key Locks Are Held Until the End of the Statement for Rows That Do Not Pass Filter Criteria | 2005-10-25 | +| 8.00.854 | 2000.80.854.0 | 828699 FIX: An Access Violation Occurs When You Run DBCC UPDATEUSAGE on a Database That Has Many Objects | 2005-10-25 | +| 8.00.852 | 2000.80.852.0 | 830466 FIX: You may receive an "Internal SQL Server error" error message when you run a Transact-SQL SELECT statement on a view that has many subqueries in SQL Server 2000 | 2005-04-01 | +| 8.00.852 | 2000.80.852.0 | 827954 FIX: Slow Execution Times May Occur When You Run DML Statements Against Tables That Have Cascading Referential Integrity | 2005-10-25 | +| 8.00.851 | 2000.80.851.0 | 826754 FIX: A Deadlock Occurs If You Run an Explicit UPDATE STATISTICS Command | 2005-10-25 | +| 8.00.850 | 2000.80.850.0 | 826860 FIX: Linked Server Query May Return NULL If It Is Performed Through a Keyset Cursor | 2005-10-25 | +| 8.00.850 | 2000.80.850.0 | 826815 FIX: You receive an 8623 error message in SQL Server when you try to run a query that has multiple correlated subqueries | 2005-10-25 | +| 8.00.850 | 2000.80.850.0 | 826906 FIX: A query that uses a view that contains a correlated subquery and an aggregate runs slowly | 2005-10-25 | +| 8.00.848 | 2000.80.848.0 | 826822 FIX: A Member of the db_accessadmin Fixed Database Role Can Create an Alias for the dbo Special User | 2005-10-25 | +| 8.00.847 | 2000.80.847.0 | 826433 PRB: Additional SQL Server Diagnostics Added to Detect Unreported I/O Problems | 2005-10-25 | +| 8.00.845 | 2000.80.845.0 | 826364 FIX: A Query with a LIKE Comparison Results in a Non-Optimal Query Plan When You Use a Hungarian SQL Server Collation | 2005-10-05 | +| 8.00.845 | 2000.80.845.0 | 825854 FIX: No Exclusive Locks May Be Taken If the DisAllowsPageLocks Value Is Set to True | 2005-10-25 | +| 8.00.844 | 2000.80.844.0 | 826080 FIX: SQL Server 2000 protocol encryption applies to JDBC clients | 2006-10-17 | +| 8.00.842 | 2000.80.842.0 | 825043 FIX: Rows are unexpectedly deleted when you run a distributed query to delete or to update a linked server table | 2005-10-25 | +| 8.00.841 | 2000.80.841.0 | 825225 FIX: You receive an error message when you run a parallel query that uses an aggregation function or the GROUP BY clause | 2005-10-25 | +| 8.00.840 | 2000.80.840.0 | 319477 FIX: Extremely Large Number of User Tables on AWE System May Cause BPool::Map Errors | 2005-09-27 | +| 8.00.840 | 2000.80.840.0 | 319477 FIX: Extremely Large Number of User Tables on AWE System May Cause BPool::Map Errors | 2005-09-27 | +| 8.00.839 | 2000.80.839.0 | 823877 FIX: An Access Violation May Occur When You Run a Query That Contains 32,000 or More OR Clauses | 2005-10-25 | +| 8.00.839 | 2000.80.839.0 | 824027 FIX: A Cursor with a Large Object Parameter May Cause an Access Violation on CStmtCond::XretExecute | 2005-10-25 | +| 8.00.837 | 2000.80.837.0 | 820788 FIX: Delayed domain authentication may cause SQL Server to stop responding | 2005-10-25 | +| 8.00.837 | 2000.80.837.0 | 821741 FIX: Lock monitor exception in DeadlockMonitor::ResolveDeadlock | 2005-10-25 | +| 8.00.837 | 2000.80.837.0 | 821548 FIX: A Parallel Query May Generate an Access Violation After You Install SQL Server 2000 SP3 | 2005-10-25 | +| 8.00.837 | 2000.80.837.0 | 821740 FIX: MS DTC Transaction Commit Operation Blocks Itself | 2005-10-25 | +| 8.00.837 | 2000.80.837.0 | 823514 FIX: Build 8.00.0837: A query that contains a correlated subquery runs slowly | 2005-10-25 | +| 8.00.819 | 2000.80.819.0 | 826161 FIX: You are prompted for password confirmation after you change a standard SQL Server login | 2005-10-25 | +| 8.00.818 | 2000.80.818.0 | 821277 MS03-031: Security patch for SQL Server 2000 Service Pack 3 | 2006-01-09 | +| 8.00.818 | 2000.80.818.0 | 821337 FIX: Localized versions of SQL Mail and the Web Assistant Wizard may not work as expected in SQL Server 2000 64 bit | 2005-03-16 | +| 8.00.818 | 2000.80.818.0 | 818388 FIX: A Transact-SQL Statement That Is Embedded in the Database Name Runs with System Administrator Permissions | 2005-02-10 | +| 8.00.818 | 2000.80.818.0 | 826161 FIX: You are prompted for password confirmation after you change a standard SQL Server login | 2005-10-25 | +| 8.00.818 | 2000.80.818.0 | 821280 MS03-031: Security Patch for SQL Server 2000 64-bit | 2006-03-14 | +| 8.00.816 | 2000.80.816.0 | 818766 FIX: Intense SQL Server activity results in spinloop wait | 2005-10-25 | +| 8.00.814 | 2000.80.814.0 | 819662 FIX: Distribution Cleanup Agent Incorrectly Cleans Up Entries for Anonymous Subscribers | 2005-10-25 | +| 8.00.811 | 2000.80.811.0 | 819248 FIX: An access violation exception may occur when you insert a row in a table that is referenced by indexed views in SQL Server 2000 | 2006-04-03 | +| 8.00.811 | 2000.80.811.0 | 819662 FIX: Distribution Cleanup Agent Incorrectly Cleans Up Entries for Anonymous Subscribers | 2005-10-25 | +| 8.00.811 | 2000.80.811.0 | 818897 FIX: Invalid TDS Sent to SQL Server Results in Access Violation | 2005-10-25 | +| 8.00.807 | 2000.80.807.0 | 818899 FIX: Error Message 3628 May Occur When You Run a Complex Query | 2005-10-25 | +| 8.00.804 | 2000.80.804.0 | 818729 FIX: Internal Query Processor Error 8623 When Microsoft SQL Server Tries to Compile a Plan for a Complex Query | 2005-10-25 | +| 8.00.801 | 2000.80.801.0 | 818540 FIX: SQL Server Enterprise Manager unexpectedly quits when you modify a DTS package | 2006-01-26 | +| 8.00.800 | 2000.80.800.0 | 818414 FIX: The Sqldumper.exe File Does Not Generate a Userdump File When It Runs Against a Windows Service | 2005-09-27 | +| 8.00.800 | 2000.80.800.0 | 818097 FIX: An Access Violation May Occur When You Run DBCC DBREINDEX on a Table That Has Hypothetical Indexes | 2005-09-27 | +| 8.00.800 | 2000.80.800.0 | 818188 FIX: Query on the sysmembers Virtual Table May Fail with a Stack Overflow | 2005-09-27 | +| 8.00.798 | 2000.80.798.0 | 817464 FIX: Using Sp_executesql in Merge Agent Operations | 2005-09-27 | +| 8.00.794 | 2000.80.794.0 | 817464 FIX: Using Sp_executesql in Merge Agent Operations | 2005-09-27 | +| 8.00.794 | 2000.80.794.0 | 813524 FIX: OLE DB conversion errors may occur after you select a literal string that represents datetime data as a column | 2005-09-27 | +| 8.00.794 | 2000.80.794.0 | 816440 FIX: Error 8623 is Raised When SQL Server Compiles a Complex Query | 2005-09-27 | +| 8.00.794 | 2000.80.794.0 | 817709 FIX: SQL Server 2000 might produce an incorrect cardinality estimate for outer joins | 2005-02-11 | +| 8.00.791 | 2000.80.791.0 | 815249 FIX: Performance of a query that is run from a client program on a SQL Server SP3 database is slow after you restart the instance of SQL Server | 2005-09-27 | +| 8.00.790 | 2000.80.790.0 | 817081 FIX: You receive an error message when you use the SQL-DMO BulkCopy object to import data into a SQL Server table | 2005-09-27 | +| 8.00.789 | 2000.80.789.0 | 816840 FIX: Error 17883 May Display Message Text That Is Not Correct | 2005-09-27 | +| 8.00.788 | 2000.80.788.0 | 816985 FIX: You cannot install SQL Server 2000 SP3 on the Korean version of SQL Server 2000 | 2005-09-27 | +| 8.00.781 | 2000.80.781.0 | 815057 FIX: SQL Server 2000 Uninstall Option Does Not Remove All Files | 2005-09-27 | +| 8.00.780 | 2000.80.780.0 | 816039 FIX: Code Point Comparison Semantics for SQL_Latin1_General_Cp850_BIN Collation | 2005-09-27 | +| 8.00.780 | 2000.80.780.0 | 816084 FIX: sysindexes.statblob Column May Be Corrupted After You Run a DBCC DBREINDEX Statement | 2005-09-27 | +| 8.00.780 | 2000.80.780.0 | 810185 SQL Server 2000 hotfix update for SQL Server 2000 Service Pack 3 and 3a | 2006-10-10 | +| 8.00.779 | 2000.80.779.0 | 814035 FIX: A Full-Text Population Fails After You Apply SQL Server 2000 Service Pack 3 | 2005-09-27 | +| 8.00.776 | 2000.80.776.0 | Unidentified | ??? | +| 8.00.775 | 2000.80.775.0 | 815115 FIX: A DTS package that uses global variables ignores an error message raised by RAISERROR | 2005-09-27 | +| 8.00.769 | 2000.80.769.0 | 814889 FIX: A DELETE statement with a JOIN might fail and you receive a 625 error | 2005-09-27 | +| 8.00.769 | 2000.80.769.0 | 814893 FIX: Error Message: "Insufficient key column information for updating" Occurs in SQL Server 2000 SP3 | 2005-09-27 | +| 8.00.765 | 2000.80.765.0 | 810163 FIX: An Access Violation Occurs if an sp_cursoropen Call References a Parameter That Is Not Defined | 2005-09-27 | +| 8.00.765 | 2000.80.765.0 | 810688 FIX: Merge Agent Can Resend Changes for Filtered Publications | 2005-09-27 | +| 8.00.765 | 2000.80.765.0 | 811611 FIX: Reinitialized SQL Server CE 2.0 subscribers may experience data loss and non-convergence | 2005-09-27 | +| 8.00.765 | 2000.80.765.0 | 813769 FIX: You May Experience Slow Performance When You Debug a SQL Server Service | 2005-09-27 | +| 8.00.763 | 2000.80.763.0 | 814113 FIX: DTS Designer may generate an access violation after you install SQL Server 2000 Service Pack 3 | 2005-09-27 | +| 8.00.762 | 2000.80.762.0 | 814032 FIX: Merge publications cannot synchronize on SQL Server 2000 Service Pack 3 | 2005-09-27 | +| 8.00.760 | 2000.80.760.0 | SQL Server 2000 Service Pack 3 (SP3 / SP3a) | 2003-08-27 | +| 8.00.743 | 2000.80.743.0 | 818406 FIX: A Transact-SQL query that uses views may fail unexpectedly in SQL Server 2000 SP2 | 2005-10-18 | +| 8.00.743 | 2000.80.743.0 | 818763 FIX: Intense SQL Server Activity Results in Spinloop Wait in SQL Server 2000 Service Pack 2 | 2005-10-25 | +| 8.00.741 | 2000.80.741.0 | 818096 FIX: Many Extent Lock Time-outs May Occur During Extent Allocation | 2005-02-10 | +| 8.00.736 | 2000.80.736.0 | 816937 FIX: A memory leak may occur when you use the sp_OAMethod stored procedure to call a method of a COM object | 2005-09-27 | +| 8.00.735 | 2000.80.735.0 | 814889 FIX: A DELETE statement with a JOIN might fail and you receive a 625 error | 2005-09-27 | +| 8.00.733 | 2000.80.733.0 | 813759 FIX: A Large Number of NULL Values in Join Columns Result in Slow Query Performance | 2005-09-27 | +| 8.00.730 | 2000.80.730.0 | 813769 FIX: You May Experience Slow Performance When You Debug a SQL Server Service | 2005-09-27 | +| 8.00.728 | 2000.80.728.0 | 814460 FIX: Merge Replication with Alternate Synchronization Partners May Not Succeed After You Change the Retention Period | 2005-09-27 | +| 8.00.725 | 2000.80.725.0 | 812995 FIX: A Query with an Aggregate Function May Fail with a 3628 Error | 2005-09-27 | +| 8.00.725 | 2000.80.725.0 | 813494 FIX: Distribution Agent Fails with "Violation of Primary Key Constraint" Error Message | 2005-09-27 | +| 8.00.723 | 2000.80.723.0 | 812798 FIX: A UNION ALL View May Not Use Index If Partitions Are Removed at Compile Time | 2005-09-27 | +| 8.00.721 | 2000.80.721.0 | 812250 FIX: Indexed View May Cause a Handled Access Violation in CIndex::SetLevel1Names | 2005-09-27 | +| 8.00.721 | 2000.80.721.0 | 812393 FIX: Update or Delete Statement Fails with Error 1203 During Row Lock Escalation | 2005-09-27 | +| 8.00.718 | 2000.80.718.0 | 811703 FIX: Unexpected results from partial aggregations based on conversions | 2005-09-27 | +| 8.00.715 | 2000.80.715.0 | 810688 FIX: Merge Agent Can Resend Changes for Filtered Publications | 2005-09-27 | +| 8.00.715 | 2000.80.715.0 | 811611 FIX: Reinitialized SQL Server CE 2.0 subscribers may experience data loss and non-convergence | 2005-09-27 | +| 8.00.714 | 2000.80.714.0 | 811478 FIX: Restoring a SQL Server 7.0 database backup in SQL Server 2000 Service Pack 2 (SP2) may cause an assertion error in the Xdes.cpp file | 2005-10-18 | +| 8.00.713 | 2000.80.713.0 | 811205 FIX: An error message occurs when you perform a database or a file SHRINK operation | 2005-09-27 | +| 8.00.710 | 2000.80.710.0 | 811052 FIX: Latch Time-Out Message 845 Occurs When You Perform a Database or File SHRINK Operation | 2005-09-27 | +| 8.00.705 | 2000.80.705.0 | 810920 FIX: The JOIN queries in the triggers that involve the inserted table or the deleted table may return results that are not consistent | 2005-09-27 | +| 8.00.703 | 2000.80.703.0 | 810526 FIX: Cursors That Have a Long Lifetime May Cause Memory Fragmentation | 2005-09-27 | +| 8.00.702 | 2000.80.702.0 | 328551 FIX: Concurrency enhancements for the tempdb database | 2006-07-19 | +| 8.00.701 | 2000.80.701.0 | 810026 FIX: A DELETE Statement with a Self-Join May Fail and You Receive a 625 Error | 2005-09-27 | +| 8.00.701 | 2000.80.701.0 | 810163 FIX: An Access Violation Occurs if an sp_cursoropen Call References a Parameter That Is Not Defined | 2005-09-27 | +| 8.00.700 | 2000.80.700.0 | 810072 FIX: Merge Replication Reconciler Stack Overflow | 2005-09-27 | +| 8.00.696 | 2000.80.696.0 | 810052 FIX: A Memory Leak Occurs When Cursors Are Opened During a Connection | 2005-09-27 | +| 8.00.696 | 2000.80.696.0 | 810010 FIX: The fn_get_sql System Table Function May Cause Various Handled Access Violations | 2005-09-27 | +| 8.00.695 | 2000.80.695.0 | 331885 FIX: Update/Delete Statement Fails with Error 1203 During Page Lock Escalation | 2005-09-27 | +| 8.00.695 | 2000.80.695.0 | 331965 FIX: The xp_readmail Extended Stored Procedure Overwrites Attachment That Already Exists | 2005-02-10 | +| 8.00.695 | 2000.80.695.0 | 331968 FIX: The xp_readmail and xp_findnextmsg Extended Stored Procedures Do Not Read Mail in Time Received Order | 2005-02-10 | +| 8.00.693 | 2000.80.693.0 | 330212 FIX: Parallel logical operation returns results that are not consistent | 2005-09-27 | +| 8.00.690 | 2000.80.690.0 | 311104 FIX: The SELECT Statement with Parallelism Enabled May Cause an Assertion | 2005-10-12 | +| 8.00.689 | 2000.80.689.0 | 329499 FIX: Replication Removed from Database After Restore WITH RECOVERY | 2005-10-11 | +| 8.00.688 | 2000.80.688.0 | 329487 FIX: Transaction Log Restore Fails with Message 3456 | 2005-10-11 | +| 8.00.686 | 2000.80.686.0 | 316333 SQL Server 2000 Security Update for Service Pack 2 | 2006-11-24 | +| 8.00.682 | 2000.80.682.0 | 319851 FIX: Assertion and Error Message 3314 Occurs If You Try to Roll Back a Text Operation with READ UNCOMMITTED | 2005-10-18 | +| 8.00.679 | 2000.80.679.0 | 316333 SQL Server 2000 Security Update for Service Pack 2 | 2006-11-24 | +| 8.00.678 | 2000.80.678.0 | 328354 FIX: A RESTORE DATABASE WITH RECOVERY Statement Can Fail with Error 9003 or Error 9004 | 2005-09-27 | | 8.00.667 | 2000.80.667.0 | 2000 SP2+8/14 fix | ??? | | 8.00.665 | 2000.80.665.0 | 2000 SP2+8/8 fix | ??? | -| 8.00.661 | 2000.80.661.0 | [326999 FIX: Lock escalation on a scan while an update query is running causes a 1203 error message to occur] | 2005-09-27 | +| 8.00.661 | 2000.80.661.0 | 326999 FIX: Lock escalation on a scan while an update query is running causes a 1203 error message to occur | 2005-09-27 | | 8.00.655 | 2000.80.655.0 | 2000 SP2+7/24 fix | ??? | -| 8.00.652 | 2000.80.652.0 | [810010 FIX: The fn_get_sql System Table Function May Cause Various Handled Access Violations] | 2005-09-27 | -| 8.00.650 | 2000.80.650.0 | [322853 FIX: SQL Server Grants Unnecessary Permissions or an Encryption Function Contains Unchecked Buffers] | 2003-11-05 | -| 8.00.644 | 2000.80.644.0 | [324186 FIX: Slow Compile Time and Execution Time with Query That Contains Aggregates and Subqueries] | 2005-09-27 | -| 8.00.636 | 2000.80.636.0 | [Microsoft Security Bulletin MS02-039] | 2002-06-24 | -| 8.00.608 | 2000.80.608.0 | [319507 FIX: SQL Extended Procedure Functions Contain Unchecked Buffers] | 2004-06-21 | +| 8.00.652 | 2000.80.652.0 | 810010 FIX: The fn_get_sql System Table Function May Cause Various Handled Access Violations | 2005-09-27 | +| 8.00.650 | 2000.80.650.0 | 322853 FIX: SQL Server Grants Unnecessary Permissions or an Encryption Function Contains Unchecked Buffers | 2003-11-05 | +| 8.00.644 | 2000.80.644.0 | 324186 FIX: Slow Compile Time and Execution Time with Query That Contains Aggregates and Subqueries | 2005-09-27 | +| 8.00.636 | 2000.80.636.0 | Microsoft Security Bulletin MS02-039 | 2002-06-24 | +| 8.00.608 | 2000.80.608.0 | 319507 FIX: SQL Extended Procedure Functions Contain Unchecked Buffers | 2004-06-21 | | 8.00.604 | 2000.80.604.0 | 2000 SP2+3/29 fix | ??? | -| 8.00.599 | 2000.80.599.0 | [319869 FIX: Improved SQL Manager Robustness for Odd Length Buffer] | 2005-09-27 | -| 8.00.594 | 2000.80.594.0 | [319477 FIX: Extremely Large Number of User Tables on AWE System May Cause BPool::Map Errors] | 2005-09-27 | -| 8.00.584 | 2000.80.584.0 | [318530 FIX: Reorder outer joins with filter criteria before non-selective joins and outer joins] | 2008-02-04 | -| 8.00.578 | 2000.80.578.0 | [317979 FIX: Unchecked Buffer May Occur When You Connect to Remote Data Source] | 2005-09-27 | -| 8.00.578 | 2000.80.578.0 | [318045 FIX: SELECT with Timestamp Column That Uses FOR XML AUTO May Fail with Stack Overflow or AV] | 2005-09-27 | -| 8.00.568 | 2000.80.568.0 | [317748 FIX: Handle Leak Occurs in SQL Server When Service or Application Repeatedly Connects and Disconnects with Shared Memory Network Library] | 2002-10-30 | +| 8.00.599 | 2000.80.599.0 | 319869 FIX: Improved SQL Manager Robustness for Odd Length Buffer | 2005-09-27 | +| 8.00.594 | 2000.80.594.0 | 319477 FIX: Extremely Large Number of User Tables on AWE System May Cause BPool::Map Errors | 2005-09-27 | +| 8.00.584 | 2000.80.584.0 | 318530 FIX: Reorder outer joins with filter criteria before non-selective joins and outer joins | 2008-02-04 | +| 8.00.578 | 2000.80.578.0 | 317979 FIX: Unchecked Buffer May Occur When You Connect to Remote Data Source | 2005-09-27 | +| 8.00.578 | 2000.80.578.0 | 318045 FIX: SELECT with Timestamp Column That Uses FOR XML AUTO May Fail with Stack Overflow or AV | 2005-09-27 | +| 8.00.568 | 2000.80.568.0 | 317748 FIX: Handle Leak Occurs in SQL Server When Service or Application Repeatedly Connects and Disconnects with Shared Memory Network Library | 2002-10-30 | | 8.00.561 | 2000.80.561.0 | 2000 SP2+1/29 fix | ??? | -| 8.00.558 | 2000.80.558.0 | [314003 FIX: Query That Uses DESC Index May Result in Access Violation] | 2005-09-26 | -| 8.00.558 | 2000.80.558.0 | [315395 FIX: COM May Not Be Uninitialized for Worker Thread When You Use sp_OA] | 2005-09-27 | -| 8.00.552 | 2000.80.552.0 | [313002 The Knowledge Base (KB) Article You Requested Is Currently Not Available] | ??? | -| 8.00.552 | 2000.80.552.0 | [313005 FIX: SELECT from Computed Column That References UDF Causes SQL Server to Terminate] | 2005-09-26 | -| 8.00.534 | 2000.80.534.0 | 2000 SP2.01 | ??? | -| 8.00.532 | 2000.80.532.0 | [SQL Server 2000 Service Pack 2 (SP2)] | 2003-02-04 | +| 8.00.558 | 2000.80.558.0 | 314003 FIX: Query That Uses DESC Index May Result in Access Violation | 2005-09-26 | +| 8.00.558 | 2000.80.558.0 | 315395 FIX: COM May Not Be Uninitialized for Worker Thread When You Use sp_OA | 2005-09-27 | +| 8.00.552 | 2000.80.552.0 | 313002 The Knowledge Base (KB) Article You Requested Is Currently Not Available | ??? | +| 8.00.552 | 2000.80.552.0 | 313005 FIX: SELECT from Computed Column That References UDF Causes SQL Server to Terminate | 2005-09-26 | +| 8.00.534 | 2000.80.534.0 | 2000 SP2.01 | ??? | +| 8.00.532 | 2000.80.532.0 | SQL Server 2000 Service Pack 2 (SP2) | 2003-02-04 | | 8.00.475 | 2000.80.475.0 | 2000 SP1+1/29 fix | ??? | -| 8.00.474 | 2000.80.474.0 | [315395 FIX: COM May Not Be Uninitialized for Worker Thread When You Use sp_OA] | 2005-09-27 | -| 8.00.473 | 2000.80.473.0 | [314003 FIX: Query That Uses DESC Index May Result in Access Violation] | 2005-09-26 | -| 8.00.471 | 2000.80.471.0 | [313302 FIX: Shared Table Lock Is Not Released After Lock Escalation] | 2005-09-26 | -| 8.00.469 | 2000.80.469.0 | [313005 FIX: SELECT from Computed Column That References UDF Causes SQL Server to Terminate] | 2005-09-26 | -| 8.00.452 | 2000.80.452.0 | [308547 FIX: SELECT DISTINCT from Table with LEFT JOIN of View Causes Error Messages or Client Application May Stop Responding] | 2005-09-26 | -| 8.00.444 | 2000.80.444.0 | [307540 FIX: SQLPutData May Result in Leak of Buffer Pool Memory] | 2005-09-26 | -| 8.00.444 | 2000.80.444.0 | [307655 FIX: Querying Syslockinfo with Large Numbers of Locks May Cause Server to Stop Responding] | 2005-10-07 | -| 8.00.443 | 2000.80.443.0 | [307538 FIX: SQLTrace Start and Stop is Now Reported in Windows NT Event Log for SQL Server 2000] | 2005-09-26 | -| 8.00.428 | 2000.80.428.0 | [304850 FIX: SQL Server Text Formatting Functions Contain Unchecked Buffers] | 2004-08-05 | -| 8.00.384 | 2000.80.384.0 | [SQL Server 2000 Service Pack 1 (SP1)] | 2001-06-11 | -| 8.00.296 | 2000.80.296.0 | [299717 FIX: Query Method Used to Access Data May Allow Rights that the Login Might Not Normally Have] | 2004-08-09 | -| 8.00.287 | 2000.80.287.0 | [297209 FIX: Deletes, Updates and Rank Based Selects May Cause Deadlock of MSSEARCH] | 2005-10-07 | -| 8.00.251 | 2000.80.251.0 | [300194 FIX: Error 644 Using Two Indexes on a Column with Uppercase Preference Sort Order] | 2003-10-17 | -| 8.00.250 | 2000.80.250.0 | [291683 The Knowledge Base (KB) Article You Requested Is Currently Not Available] | ??? | -| 8.00.249 | 2000.80.249.0 | [288122 FIX: Lock Monitor Uses Excessive CPU] | 2003-09-12 | -| 8.00.239 | 2000.80.239.0 | [285290 FIX: Complex ANSI Join Query with Distributed Queries May Cause Handled Access Violation] | 2003-10-09 | -| 8.00.233 | 2000.80.233.0 | [282416 FIX: Opening the Database Folder in SQL Server Enterprise Manager 2000 Takes a Long Time] | 2003-10-09 | -| 8.00.231 | 2000.80.231.0 | [282279 FIX: Execution of sp_OACreate on COM Object Without Type Information Causes Server Shut Down] | 2003-10-09 | -| 8.00.226 | 2000.80.226.0 | [278239 FIX: Extreme Memory Usage When Adding Many Security Roles] | 2006-11-21 | -| 8.00.225 | 2000.80.225.0 | [281663 "Access Denied" Error Message When You Try to Use a Network Drive to Modify Windows 2000 Permissions] | 2006-10-30 | -| 8.00.223 | 2000.80.223.0 | [280380 FIX: Buffer Overflow Exploit Possible with Extended Stored Procedures] | 2004-06-29 | -| 8.00.222 | 2000.80.222.0 | [281769 FIX: Exception Access Violation Encountered During Query Normalization] | 2005-10-07 | -| 8.00.218 | 2000.80.218.0 | [279183 FIX: Scripting Object with Several Extended Properties May Cause Exception] | 2003-10-09 | -| 8.00.217 | 2000.80.217.0 | [279293 FIX: CASE Using LIKE with Empty String Can Result in Access Violation or Abnormal Server Shutdown] | 2003-10-09 | -| 8.00.211 | 2000.80.211.0 | [276329 FIX: Complex Distinct or Group By Query Can Return Unexpected Results with Parallel Execution Plan] | 2003-11-05 | -| 8.00.210 | 2000.80.210.0 | [275900 FIX: Linked Server Query with Hyphen in LIKE Clause May Run Slowly] | 2003-10-09 | -| 8.00.205 | 2000.80.205.0 | [274330 FIX: Sending Open Files as Attachment in SQL Mail Fails with Error 18025] | 2005-10-07 | -| 8.00.204 | 2000.80.204.0 | [274329 FIX: Optimizer Slow to Generate Query Plan for Complex Queries that have Many Joins and Semi-Joins] | 2003-10-09 | +| 8.00.474 | 2000.80.474.0 | 315395 FIX: COM May Not Be Uninitialized for Worker Thread When You Use sp_OA | 2005-09-27 | +| 8.00.473 | 2000.80.473.0 | 314003 FIX: Query That Uses DESC Index May Result in Access Violation | 2005-09-26 | +| 8.00.471 | 2000.80.471.0 | 313302 FIX: Shared Table Lock Is Not Released After Lock Escalation | 2005-09-26 | +| 8.00.469 | 2000.80.469.0 | 313005 FIX: SELECT from Computed Column That References UDF Causes SQL Server to Terminate | 2005-09-26 | +| 8.00.452 | 2000.80.452.0 | 308547 FIX: SELECT DISTINCT from Table with LEFT JOIN of View Causes Error Messages or Client Application May Stop Responding | 2005-09-26 | +| 8.00.444 | 2000.80.444.0 | 307540 FIX: SQLPutData May Result in Leak of Buffer Pool Memory | 2005-09-26 | +| 8.00.444 | 2000.80.444.0 | 307655 FIX: Querying Syslockinfo with Large Numbers of Locks May Cause Server to Stop Responding | 2005-10-07 | +| 8.00.443 | 2000.80.443.0 | 307538 FIX: SQLTrace Start and Stop is Now Reported in Windows NT Event Log for SQL Server 2000 | 2005-09-26 | +| 8.00.428 | 2000.80.428.0 | 304850 FIX: SQL Server Text Formatting Functions Contain Unchecked Buffers | 2004-08-05 | +| 8.00.384 | 2000.80.384.0 | SQL Server 2000 Service Pack 1 (SP1) | 2001-06-11 | +| 8.00.296 | 2000.80.296.0 | 299717 FIX: Query Method Used to Access Data May Allow Rights that the Login Might Not Normally Have | 2004-08-09 | +| 8.00.287 | 2000.80.287.0 | 297209 FIX: Deletes, Updates and Rank Based Selects May Cause Deadlock of MSSEARCH | 2005-10-07 | +| 8.00.251 | 2000.80.251.0 | 300194 FIX: Error 644 Using Two Indexes on a Column with Uppercase Preference Sort Order | 2003-10-17 | +| 8.00.250 | 2000.80.250.0 | 291683 The Knowledge Base (KB) Article You Requested Is Currently Not Available | ??? | +| 8.00.249 | 2000.80.249.0 | 288122 FIX: Lock Monitor Uses Excessive CPU | 2003-09-12 | +| 8.00.239 | 2000.80.239.0 | 285290 FIX: Complex ANSI Join Query with Distributed Queries May Cause Handled Access Violation | 2003-10-09 | +| 8.00.233 | 2000.80.233.0 | 282416 FIX: Opening the Database Folder in SQL Server Enterprise Manager 2000 Takes a Long Time | 2003-10-09 | +| 8.00.231 | 2000.80.231.0 | 282279 FIX: Execution of sp_OACreate on COM Object Without Type Information Causes Server Shut Down | 2003-10-09 | +| 8.00.226 | 2000.80.226.0 | 278239 FIX: Extreme Memory Usage When Adding Many Security Roles | 2006-11-21 | +| 8.00.225 | 2000.80.225.0 | 281663 "Access Denied" Error Message When You Try to Use a Network Drive to Modify Windows 2000 Permissions | 2006-10-30 | +| 8.00.223 | 2000.80.223.0 | 280380 FIX: Buffer Overflow Exploit Possible with Extended Stored Procedures | 2004-06-29 | +| 8.00.222 | 2000.80.222.0 | 281769 FIX: Exception Access Violation Encountered During Query Normalization | 2005-10-07 | +| 8.00.218 | 2000.80.218.0 | 279183 FIX: Scripting Object with Several Extended Properties May Cause Exception | 2003-10-09 | +| 8.00.217 | 2000.80.217.0 | 279293 FIX: CASE Using LIKE with Empty String Can Result in Access Violation or Abnormal Server Shutdown | 2003-10-09 | +| 8.00.211 | 2000.80.211.0 | 276329 FIX: Complex Distinct or Group By Query Can Return Unexpected Results with Parallel Execution Plan | 2003-11-05 | +| 8.00.210 | 2000.80.210.0 | 275900 FIX: Linked Server Query with Hyphen in LIKE Clause May Run Slowly | 2003-10-09 | +| 8.00.205 | 2000.80.205.0 | 274330 FIX: Sending Open Files as Attachment in SQL Mail Fails with Error 18025 | 2005-10-07 | +| 8.00.204 | 2000.80.204.0 | 274329 FIX: Optimizer Slow to Generate Query Plan for Complex Queries that have Many Joins and Semi-Joins | 2003-10-09 | | 8.00.194 | 2000.80.194.0 | SQL Server 2000 RTM (no SP) | ??? | | 8.00.190 | 2000.80.190.0 | SQL Server 2000 Gold | ??? | | 8.00.100 | 2000.80.100.0 | SQL Server 2000 Beta 2 | ??? | | 8.00.078 | 2000.80.078.0 | SQL Server 2000 EAP5 | ??? | | 8.00.047 | 2000.80.047.0 | SQL Server 2000 EAP4 | ??? | -[983811 MS12-060: Description of the security update for SQL Server 2000 Service Pack 4 QFE: August 14, 2012]:http://support.microsoft.com/kb/983811/ -[983809 MS12-027: Description of the security update for Microsoft SQL Server 2000 Service Pack 4 QFE: April 10, 2012]:http://support.microsoft.com/kb/983809/ -[971524 FIX: An access violation occurs when you run a DELETE statement or an UPDATE statement in the Itanium-based versions of SQL Server 2000 after you install security update MS09-004]:http://support.microsoft.com/kb/971524/ -[960083 MS09-004: Description of the security update for SQL Server 2000 QFE and for MSDE 2000: February 10, 2009]:http://support.microsoft.com/kb/960083/ -[959678 FIX: When you run the SPSBackup.exe utility to back up a SQL Server 2000 database that is configured as a back-end database for a Windows SharePoint Services server, the backup operation fails]:http://support.microsoft.com/kb/959678/ -[948111 MS08-040: Description of the security update for SQL Server 2000 QFE and MSDE 2000 July 8, 2008]:http://support.microsoft.com/kb/948111/ -[946584 FIX: The SPACE function always returns one space in SQL Server 2000 if the SPACE function uses a collation that differs from the collation of the current database]:http://support.microsoft.com/kb/946584/ -[944985 FIX: The data on the publisher does not match the data on the subscriber when you synchronize a SQL Server 2005 Mobile Edition subscriber with a SQL Server 2000 "merge replication" publisher]:http://support.microsoft.com/kb/944985/ -[939317 FIX: The CPU utilization may suddenly increase to 100 percent when there are many connections to an instance of SQL Server 2000 on a computer that has multiple processors]:http://support.microsoft.com/kb/939317/ -[936232 FIX: An access violation may occur when you try to log in to an instance of SQL Server 2000]:http://support.microsoft.com/kb/936232/ -[935950 FIX: The foreign key that you created between two tables does not work after you run the CREATE INDEX statement in SQL Server 2000]:http://support.microsoft.com/kb/935950/ -[935465 An updated version of Sqlvdi.dll is now available for SQL Server 2000]:http://support.microsoft.com/kb/935465/ -[933573 FIX: You may receive an assertion or database corruption may occur when you use the bcp utility or the "Bulk Insert" Transact-SQL command to import data in SQL Server 2000]:http://support.microsoft.com/kb/933573/ -[934203 FIX: A hotfix for Microsoft SQL Server 2000 Service Pack 4 may not update all the necessary files on an x64-based computer]:http://support.microsoft.com/kb/934203/ -[929131 FIX: In SQL Server 2000, the synchronization process is slow, and the CPU usage is high on the computer that is configured as the Distributor]:http://support.microsoft.com/kb/929131/ -[931932 FIX: The merge agent fails intermittently when you use merge replication that uses a custom resolver after you install SQL Server 2000 Service Pack 4]:http://support.microsoft.com/kb/931932/ -[930484 FIX: CPU utilization may approach 100 percent on a computer that is running SQL Server 2000 after you run the BACKUP DATABASE statement or the BACKUP LOG statement]:http://support.microsoft.com/kb/930484/ -[929440 FIX: Error messages when you try to update table rows or insert table rows into a table in SQL Server 2000: "644" or "2511"]:http://support.microsoft.com/kb/929440/ -[928568 FIX: SQL Server 2000 stops responding when you cancel a query or when a query time-out occurs, and error messages are logged in the SQL Server error log file]:http://support.microsoft.com/kb/928568/ -[928079 FIX: The Sqldumper.exe utility cannot generate a filtered SQL Server dump file when you use the Remote Desktop Connection service or Terminal Services to connect to a Windows 2000 Server-based computer in SQL Server 2000]:http://support.microsoft.com/kb/928079/ -[927186 FIX: Error message when you create a merge replication for tables that have computed columns in SQL Server 2000 Service Pack 4: "The process could not log conflict information"]:http://support.microsoft.com/kb/927186/ -[925684 FIX: You may experience one or more symptoms when you run a "CREATE INDEX" statement on an instance of SQL Server 2000]:http://support.microsoft.com/kb/925684/ -[925732 FIX: You may receive inconsistent comparison results when you compare strings by using a width sensitive collation in SQL Server 2000]:http://support.microsoft.com/kb/925732/ -[925419 FIX: The server stops responding, the performance is slow, and a time-out occurs in SQL Server 2000]:http://support.microsoft.com/kb/925419/ -[925678 FIX: Error message when you schedule a Replication Merge Agent job to run after you install SQL Server 2000 Service Pack 4: "The process could not enumerate changes at the 'Subscriber'"]:http://support.microsoft.com/kb/925678/ -[925297 FIX: The result may be sorted in the wrong order when you run a query that uses the ORDER BY clause to sort a column in a table in SQL Server 2000]:http://support.microsoft.com/kb/925297/ -[924664 FIX: You cannot stop the SQL Server service, or many minidump files and many log files are generated in SQL Server 2000]:http://support.microsoft.com/kb/924664/ -[923796 FIX: Data in a subscriber of a merge publication in SQL Server 2000 differs from the data in the publisher]:http://support.microsoft.com/kb/923796/ -[924662 FIX: The query performance may be slow when you query data from a view in SQL Server 2000]:http://support.microsoft.com/kb/924662/ -[923563 FIX: Error message when you configure an immediate updating transactional replication in SQL Server 2000: "Implicit conversion from datatype 'text' to 'nvarchar' is not allowed"]:http://support.microsoft.com/kb/923563/ -[923327 FIX: You may receive an access violation error message when you import data by using the "Bulk Insert" command in SQL Server 2000]:http://support.microsoft.com/kb/923327/ -[923797 The Knowledge Base (KB) Article You Requested Is Currently Not Available]:http://support.microsoft.com/kb/923797/ -[923344 FIX: A SQL Server 2000 session may be blocked for the whole time that a Snapshot Agent job runs]:http://support.microsoft.com/kb/923344/ -[920930 FIX: Error message when you try to run a query on a linked server in SQL Server 2000]:http://support.microsoft.com/kb/920930/ -[919221 FIX: SQL Server 2000 may take a long time to complete the synchronization phase when you create a merge publication]:http://support.microsoft.com/kb/919221/ -[919133 FIX: Each query takes a long time to compile when you execute a single query or when you execute multiple concurrent queries in SQL Server 2000]:http://support.microsoft.com/kb/919133/ -[919068 FIX: The query may return incorrect results, and the execution plan for the query may contain a "Table Spool" operator in SQL Server 2000]:http://support.microsoft.com/kb/919068/ -[919399 FIX: A profiler trace in SQL Server 2000 may stop logging events unexpectedly, and you may receive the following error message: "Failed to read trace data"]:http://support.microsoft.com/kb/919399/ -[919165 FIX: A memory leak occurs when you run a remote query by using a linked server in SQL Server 2000]:http://support.microsoft.com/kb/919165/ -[917565 FIX: Error 17883 is logged in the SQL Server error log, and the instance of SQL Server 2000 temporarily stops responding]:http://support.microsoft.com/kb/917565/ -[917972 FIX: You receive an access violation error message when you try to perform a read of a large binary large object column in SQL Server 2000]:http://support.microsoft.com/kb/917972/ -[917606 FIX: You may notice a decrease in performance when you run a query that uses the UNION ALL operator in SQL Server 2000 Service Pack 4]:http://support.microsoft.com/kb/917606/ -[916698 FIX: Error message when you run SQL Server 2000: "Failed assertion = 'lockFound == TRUE'"]:http://support.microsoft.com/kb/916698/ -[916950 FIX: You may experience heap corruption, and SQL Server 2000 may shut down with fatal access violations when you try to browse files in SQL Server 2000 Enterprise Manager on a Windows Server 2003 x64-based computer]:http://support.microsoft.com/kb/916950/ -[916652 FIX: An access violation may occur when you run a query on a table that has a multicolumn index in SQL Server 2000]:http://support.microsoft.com/kb/916652/ -[913438 FIX: The SQL Server process may end unexpectedly when you turn on trace flag -T1204 and a profiler trace is capturing the Lock:DeadLock Chain event in SQL Server 2000 SP4]:http://support.microsoft.com/kb/913438/ -[915340 FIX: A deadlock occurs when the scheduled SQL Server Agent job that you add or that you update is running in SQL Server 2000]:http://support.microsoft.com/kb/915340/ -[916287 A cumulative hotfix package is available for SQL Server 2000 Service Pack 4 build 2187]:http://support.microsoft.com/kb/916287/ -[914384 FIX: The database status changes to Suspect when you perform a bulk copy in a transaction and then roll back the transaction in SQL Server 2000]:http://support.microsoft.com/kb/914384/ -[915065 FIX: Error message when you try to apply a hotfix on a SQL Server 2000-based computer that is configured as a MSCS node: "An error in updating your system has occurred"]:http://support.microsoft.com/kb/915065/ -[913789 FIX: The password that you specify in a BACKUP statement appears in the SQL Server Errorlog file or in the Application event log if the BACKUP statement does not run in SQL Server 2000]:http://support.microsoft.com/kb/913789/ -[913684 FIX: You may receive error messages when you use linked servers in SQL Server 2000 on a 64-bit Itanium processor]:http://support.microsoft.com/kb/913684/ -[911678 FIX: No rows may be returned, and you may receive an error message when you try to import SQL Profiler trace files into tables by using the fn_trace_gettable function in SQL Server 2000]:http://support.microsoft.com/kb/911678/ -[910707 FIX: When you query a view that was created by using the VIEW_METADATA option, an access violation may occur in SQL Server 2000]:http://support.microsoft.com/kb/910707/ -[909369 FIX: Automatic checkpoints on some SQL Server 2000 databases do not run as expected]:http://support.microsoft.com/kb/909369/ -[907813 FIX: An error occurs when you try to access the Analysis Services performance monitor counter object after you apply Windows Server 2003 SP1]:http://support.microsoft.com/kb/907813/ -[909734 FIX: An error message is logged, and new diagnostics do not capture the thread stack when the SQL Server User Mode Scheduler (UMS) experiences a nonyielding thread in SQL Server 2000 Service Pack 4]:http://support.microsoft.com/kb/909734/ -[904660 A cumulative hotfix package is available for SQL Server 2000 Service Pack 4 build 2162]:http://support.microsoft.com/kb/904660/ -[907250 FIX: You may experience concurrency issues when you run the DBCC INDEXDEFRAG statement in SQL Server 2000]:http://support.microsoft.com/kb/907250/ -[906790 FIX: You receive an error message when you try to rebuild the master database after you have installed hotfix builds in SQL Server 2000 SP4 64-bit]:http://support.microsoft.com/kb/906790/ -[903742 FIX: You receive an "Error: 8526, Severity: 16, State: 2" error message in SQL Profiler when you use SQL Query Analyzer to start or to enlist into a distributed transaction after you have installed SQL Server 2000 SP4]:http://support.microsoft.com/kb/903742/ -[904244 FIX: Incorrect data is inserted unexpectedly when you perform a bulk copy operation by using the DB-Library API in SQL Server 2000 Service Pack 4]:http://support.microsoft.com/kb/904244/ -[899430 FIX: An access violation may occur when you run a SELECT query and the NO_BROWSETABLE option is set to ON in Microsoft SQL Server 2000]:http://support.microsoft.com/kb/899430/ -[899431 FIX: An access violation occurs in the Mssdi98.dll file, and SQL Server crashes when you use SQL Query Analyzer to debug a stored procedure in SQL Server 2000 Service Pack 4]:http://support.microsoft.com/kb/899431/ -[900390 FIX: The Mssdmn.exe process may use lots of CPU capacity when you perform a SQL Server 2000 full text search of Office Word documents]:http://support.microsoft.com/kb/900390/ -[900404 FIX: The results of the query may be returned much slower than you expect when you run a query that includes a GROUP BY statement in SQL Server 2000]:http://support.microsoft.com/kb/900404/ -[901212 FIX: You receive an error message if you use the sp_addalias or sp_dropalias procedures when the IMPLICIT_TRANSACTIONS option is set to ON in SQL Server 2000 SP4]:http://support.microsoft.com/kb/901212/ -[902150 FIX: Some 32-bit applications that use SQL-DMO and SQL-VDI APIs may stop working after you install SQL Server 2000 Service Pack 4 on an Itanium-based computer]:http://support.microsoft.com/kb/902150/ -[902955 FIX: You receive a "Getting registry information" message when you run the Sqldiag.exe utility after you install SQL Server 2000 SP4]:http://support.microsoft.com/kb/902955/ -[899410 FIX: You may experience slow server performance when you start a trace in an instance of SQL Server 2000 that runs on a computer that has more than four processors]:http://support.microsoft.com/kb/899410/ -[826906 FIX: A query that uses a view that contains a correlated subquery and an aggregate runs slowly]:http://support.microsoft.com/kb/826906/ -[836651 FIX: You receive query results that were not expected when you use both ANSI joins and non-ANSI joins]:http://support.microsoft.com/kb/836651/ -[Microsoft Security Bulletin MS12-060]:https://technet.microsoft.com/en-us/security/bulletin/MS12-060 -[983808 MS12-027: Description of the security update for Microsoft SQL Server 2000 Service Pack 4 GDR: April 10, 2012]:http://support.microsoft.com/kb/983808/ -[959420 MS09-004: Vulnerabilities in Microsoft SQL Server could allow remote code execution]:http://support.microsoft.com/kb/959420/ -[899761 FIX: Not all memory is available when AWE is enabled on a computer that is running a 32-bit version of SQL Server 2000 SP4]:http://support.microsoft.com/kb/899761/ -[SQL Server 2000 Service Pack 4 (SP4)]:http://www.microsoft.com/downloads/details.aspx?FamilyId=8E2DFC8D-C20E-4446-99A9-B7F0213F8BC5 -[899410 FIX: You may experience slow server performance when you start a trace in an instance of SQL Server 2000 that runs on a computer that has more than four processors]:http://support.microsoft.com/kb/899410/ -[983814 MS12-070: Description of the security update for SQL Server 2000 Reporting Services Service Pack 2]:http://support.microsoft.com/kb/983814 -[930484 FIX: CPU utilization may approach 100 percent on a computer that is running SQL Server 2000 after you run the BACKUP DATABASE statement or the BACKUP LOG statement]:http://support.microsoft.com/kb/930484/ -[929410 FIX: Error message when you run a full-text query in SQL Server 2000: "Error: 17883, Severity: 1, State: 0"]:http://support.microsoft.com/kb/929410/ -[917593 FIX: The "Audit Logout" event does not appear in the trace results file when you run a profiler trace against a linked server instance in SQL Server 2000]:http://support.microsoft.com/kb/917593/ -[915328 FIX: You may intermittently experience an access violation error when a query is executed in a parallel plan and the execution plan contains either a HASH JOIN operation or a Sort operation in SQL Server 2000]:http://support.microsoft.com/kb/915328/ -[902852 FIX: Error message when you run an UPDATE statement that uses two JOIN hints to update a table in SQL Server 2000: "Internal SQL Server error"]:http://support.microsoft.com/kb/902852/ -[900416 FIX: A 17883 error may occur you run a query that uses a hash join in SQL Server 2000]:http://support.microsoft.com/kb/900416/ -[899428 FIX: You receive incorrect results when you run a query that uses a cross join operator in SQL Server 2000 SP3]:http://support.microsoft.com/kb/899428/ -[899430 FIX: An access violation may occur when you run a SELECT query and the NO_BROWSETABLE option is set to ON in Microsoft SQL Server 2000]:http://support.microsoft.com/kb/899430/ -[898709 FIX: Error message when you use SQL Server 2000: "Time out occurred while waiting for buffer latch type 3"]:http://support.microsoft.com/kb/898709/ -[887700 FIX: Server Network Utility may display incorrect protocol properties in SQL Server 2000]:http://support.microsoft.com/kb/887700/ -[896985 FIX: The Subscriber may not be able to upload changes to the Publisher when you incrementally add an article to a publication in SQL Server 2000 SP3]:http://support.microsoft.com/kb/896985/ -[897572 FIX: You may receive a memory-related error message when you repeatedly create and destroy an out-of-process COM object within the same batch or stored procedure in SQL Server 2000]:http://support.microsoft.com/kb/897572/ -[896425 FIX: The BULK INSERT statement silently skips insert attempts when the data value is NULL and the column is defined as NOT NULL for INT, SMALLINT, and BIGINT data types in SQL Server 2000]:http://support.microsoft.com/kb/896425/ -[895123 FIX: You may receive error message 701, error message 802, and error message 17803 when many hashed buffers are available in SQL Server 2000]:http://support.microsoft.com/kb/895123/ -[895187 FIX: You receive an error message when you try to delete records by running a Delete Transact-SQL statement in SQL Server 2000]:http://support.microsoft.com/kb/895187/ -[891866 FIX: The query runs slower than you expected when you try to parse a query in SQL Server 2000]:http://support.microsoft.com/kb/891866/ -[894257 FIX: You receive an "Incorrect syntax near ')'" error message when you run a script that was generated by SQL-DMO for an Operator object in SQL Server 2000]:http://support.microsoft.com/kb/894257/ -[893312 FIX: You may receive a "SQL Server could not spawn process_loginread thread" error message, and a memory leak may occur when you cancel a remote query in SQL Server 2000]:http://support.microsoft.com/kb/893312/ -[892923 FIX: Differential database backups may not contain database changes in the Page Free Space (PFS) pages in SQL Server 2000]:http://support.microsoft.com/kb/892923/ -[892205 FIX: You may receive a 17883 error message when SQL Server 2000 performs a very large hash operation]:http://support.microsoft.com/kb/892205/ -[891585 FIX: Database recovery does not occur, or a user database is marked as suspect in SQL Server 2000]:http://support.microsoft.com/kb/891585/ -[891311 FIX: You cannot create new TCP/IP socket based connections after error messages 17882 and 10055 are written to the Microsoft SQL Server 2000 error log]:http://support.microsoft.com/kb/891311/ -[891017 FIX: SQL Server 2000 may stop responding to other requests when you perform a large deallocation operation]:http://support.microsoft.com/kb/891017/ -[891268 FIX: You receive a 17883 error message and SQL Server 2000 may stop responding to other requests when you perform large in-memory sort operations]:http://support.microsoft.com/kb/891268/ -[890942 FIX: Some complex queries are slower after you install SQL Server 2000 Service Pack 2 or SQL Server 2000 Service Pack 3]:http://support.microsoft.com/kb/890942/ -[890768 FIX: You experience non-convergence in a replication topology when you unpublish or drop columns from a dynamically filtered publication in SQL Server 2000]:http://support.microsoft.com/kb/890768/ -[890767 FIX: You receive a "Server: Msg 107, Level 16, State 3, Procedure TEMP_VIEW_Merge, Line 1" error message when the sum of the length of the published column names in a merge publication exceeds 4,000 characters in SQL Server 2000]:http://support.microsoft.com/kb/890767/ -[890925 FIX: The @@ERROR system function may return an incorrect value when you execute a Transact-SQL statement that uses a parallel execution plan in SQL Server 2000 32-bit or in SQL Server 2000 64-bit]:http://support.microsoft.com/kb/890925/ -[888444 FIX: You receive a 17883 error in SQL Server 2000 Service Pack 3 or in SQL Server 2000 Service Pack 3a when a worker thread becomes stuck in a registry call]:http://support.microsoft.com/kb/888444/ -[890742 FIX: Error message when you use a loopback linked server to run a distributed query in SQL Server 2000: "Could not perform the requested operation because the minimum query memory is not available"]:http://support.microsoft.com/kb/890742/ -[889314 FIX: Non-convergence may occur in a merge replication topology if the primary connection to the publisher is disconnected]:http://support.microsoft.com/kb/889314/ -[890200 FIX: SQL Server 2000 stops listening for new TCP/IP Socket connections unexpectedly after error message 17882 is written to the SQL Server 2000 error log]:http://support.microsoft.com/kb/890200/ -[889166 FIX: You receive a "Msg 3628" error message when you run an inner join query in SQL Server 2000]:http://support.microsoft.com/kb/889166/ -[889239 FIX: Start times in the SQL Profiler are different for the Audit:Login and Audit:Logout Events in SQL Server 2000]:http://support.microsoft.com/kb/889239/ -[887974 FIX: A fetch on a dynamic cursor can cause unexpected results in SQL Server 2000 Service Pack 3]:http://support.microsoft.com/kb/887974/ -[888007 You receive a "The product does not have a prerequisite update installed" error message when you try to install a SQL Server 2000 post-Service Pack 3 hotfix]:http://support.microsoft.com/kb/888007/ -[884554 FIX: A SPID stops responding with a NETWORKIO (0x800) waittype in SQL Server Enterprise Manager when SQL Server tries to process a fragmented TDS network packet]:http://support.microsoft.com/kb/884554/ -[885290 FIX: An assertion error occurs when you insert data in the same row in a table by using multiple connections to an instance of SQL Server]:http://support.microsoft.com/kb/885290/ -[872842 FIX: A CHECKDB statement reports a 2537 corruption error after SQL Server transfers data to a sql_variant column in SQL Server 2000]:http://support.microsoft.com/kb/872842/ -[878501 FIX: You may receive an error message when you run a SET IDENTITY_INSERT ON statement on a table and then try to insert a row into the table in SQL Server 2000]:http://support.microsoft.com/kb/878501/ -[883415 FIX: A user-defined function returns results that are not correct for a query]:http://support.microsoft.com/kb/883415/ -[873446 FIX: An access violation exception may occur when multiple users try to perform data modification operations at the same time that fire triggers that reference a deleted or an inserted table in SQL Server 2000 on a computer that is running SMP]:http://support.microsoft.com/kb/873446/ -[878500 FIX: An Audit Object Permission event is not produced when you run a TRUNCATE TABLE statement]:http://support.microsoft.com/kb/878500/ -[870994 FIX: An access violation exception may occur when you run a query that uses index names in the WITH INDEX option to specify an index hint]:http://support.microsoft.com/kb/870994/ -[867798 FIX: The @date_received parameter of the xp_readmail extended stored procedure incorrectly returns the date and the time that an e-mail message is submitted by the sender in SQL Server 2000]:http://support.microsoft.com/kb/867798/ -[843282 FIX: The Osql.exe utility does not run a Transact-SQL script completely if you start the program from a remote session by using a background service and then log off the console session]:http://support.microsoft.com/kb/843282/ -[867878 FIX: The Log Reader Agent may cause 17883 error messages]:http://support.microsoft.com/kb/867878/ -[867879 FIX: Merge replication non-convergence occurs with SQL Server CE subscribers]:http://support.microsoft.com/kb/867879/ -[867880 FIX: Merge Agent may fail with an "Invalid character value for cast specification" error message]:http://support.microsoft.com/kb/867880/ -[843266 FIX: Shared page locks can be held until end of the transaction and can cause blocking or performance problems in SQL Server 2000 Service Pack 3 (SP3)]:http://support.microsoft.com/kb/843266/ -[843263 FIX: You may receive an 8623 error message when you try to run a complex query on an instance of SQL Server]:http://support.microsoft.com/kb/843263/ -[839280 FIX: SQL debugging does not work in Visual Studio .NET after you install Windows XP Service Pack 2]:http://support.microsoft.com/kb/839280/ -[841776 FIX: Additional diagnostics have been added to SQL Server 2000 to detect unreported read operation failures]:http://support.microsoft.com/kb/841776/ -[841627 FIX: SQL Server 2000 may underestimate the cardinality of a query expression under certain circumstances]:http://support.microsoft.com/kb/841627/ -[841401 FIX: You may notice incorrect values for the "Active Transactions" counter when you perform multiple transactions on an instance of SQL Server 2000 that is running on an SMP computer]:http://support.microsoft.com/kb/841401/ -[841404 FIX: You may receive a "The query processor could not produce a query plan" error message in SQL Server when you run a query that includes multiple subqueries that use self-joins]:http://support.microsoft.com/kb/841404/ -[840856 FIX: The MSSQLServer service exits unexpectedly in SQL Server 2000 Service Pack 3]:http://support.microsoft.com/kb/840856/ -[839529 FIX: 8621 error conditions may cause SQL Server 2000 64-bit to close unexpectedly]:http://support.microsoft.com/kb/839529/ -[839589 FIX: The thread priority is raised for some threads in a parallel query]:http://support.microsoft.com/kb/839589/ -[839688 FIX: Profiler RPC events truncate parameters that have a text data type to 16 characters]:http://support.microsoft.com/kb/839688/ -[839523 FIX: An access violation exception may occur when you update a text column by using a stored procedure in SQL Server 2000]:http://support.microsoft.com/kb/839523/ -[838460 FIX: The xp_logininfo procedure may fail with error 8198 after you install Q825042 or any hotfix with SQL Server 8.00.0840 or later]:http://support.microsoft.com/kb/838460/ -[837970 FIX: You may receive an "Invalid object name..." error message when you run the DBCC CHECKCONSTRAINTS Transact-SQL statement on a table in SQL Server 2000]:http://support.microsoft.com/kb/837970/ -[837957 FIX: When you use Transact-SQL cursor variables to perform operations that have large iterations, memory leaks may occur in SQL Server 2000]:http://support.microsoft.com/kb/837957/ -[317989 FIX: Sqlakw32.dll May Corrupt SQL Statements]:http://support.microsoft.com/kb/317989/ -[837401 FIX: Rows are not successfully inserted into a table when you use the BULK INSERT command to insert rows]:http://support.microsoft.com/kb/837401/ -[836651 FIX: You receive query results that were not expected when you use both ANSI joins and non-ANSI joins]:http://support.microsoft.com/kb/836651/ -[837957 FIX: When you use Transact-SQL cursor variables to perform operations that have large iterations, memory leaks may occur in SQL Server 2000]:http://support.microsoft.com/kb/837957/ -[834798 FIX: SQL Server 2000 may not start if many users try to log in to SQL Server when SQL Server is trying to start]:http://support.microsoft.com/kb/834798/ -[834290 FIX: You receive a 644 error message when you run an UPDATE statement and the isolation level is set to READ UNCOMMITTED]:http://support.microsoft.com/kb/834290/ -[834453 FIX: The Snapshot Agent may fail after you make schema changes to the underlying tables of a publication]:http://support.microsoft.com/kb/834453/ -[833710 FIX: You receive an error message when you try to restore a database backup that spans multiple devices]:http://support.microsoft.com/kb/833710/ -[836141 FIX: An access violation exception may occur when SQL Server runs many parallel query processing operations on a multiprocessor computer]:http://support.microsoft.com/kb/836141/ -[832977 FIX: The DBCC PSS Command may cause access violations and 17805 errors in SQL Server 2000]:http://support.microsoft.com/kb/832977/ -[831950 FIX: You receive error message 3456 when you try to apply a transaction log to a server]:http://support.microsoft.com/kb/831950/ -[830912 FIX: Key Names Read from an .Ini File for a Dynamic Properties Task May Be Truncated]:http://support.microsoft.com/kb/830912/ -[831997 FIX: An invalid cursor state occurs after you apply Hotfix 8.00.0859 or later in SQL Server 2000]:http://support.microsoft.com/kb/831997/ -[831999 FIX: An AWE system uses more memory for sorting or for hashing than a non-AWE system in SQL Server 2000]:http://support.microsoft.com/kb/831999/ -[830887 FIX: Some queries that have a left outer join and an IS NULL filter run slower after you install SQL Server 2000 post-SP3 hotfix]:http://support.microsoft.com/kb/830887/ -[830767 FIX: SQL Query Analyzer may stop responding when you close a query window or open a file]:http://support.microsoft.com/kb/830767/ -[830860 FIX: The performance of a computer that is running SQL Server 2000 degrades when query execution plans against temporary tables remain in the procedure cache]:http://support.microsoft.com/kb/830860/ -[830262 FIX: Unconditional Update May Not Hold Key Locks on New Key Values]:http://support.microsoft.com/kb/830262/ -[830588 FIX: Access violation when you trace keyset-driven cursors by using SQL Profiler]:http://support.microsoft.com/kb/830588/ -[830366 FIX: An access violation occurs in SQL Server 2000 when a high volume of local shared memory connections occur after you install security update MS03-031]:http://support.microsoft.com/kb/830366/ -[830395 FIX: An access violation occurs during compilation if the table contains statistics for a computed column]:http://support.microsoft.com/kb/830395/ -[828945 FIX: You cannot insert explicit values in an IDENTITY column of a SQL Server table by using the SQLBulkOperations function or the SQLSetPos ODBC function in SQL Server 2000]:http://support.microsoft.com/kb/828945/ -[829205 FIX: Query performance may be slow and may be inconsistent when you run a query while another query that contains an IN operator with many values is compiled]:http://support.microsoft.com/kb/829205/ -[829444 FIX: A floating point exception occurs during the optimization of a query]:http://support.microsoft.com/kb/829444/ -[821334 FIX: Issues that are resolved in SQL Server 2000 build 8.00.0859]:http://support.microsoft.com/kb/821334/ -[828637 FIX: Users Can Control the Compensating Change Process in Merge Replication]:http://support.microsoft.com/kb/828637/ -[828017 The Knowledge Base (KB) Article You Requested Is Currently Not Available]:http://support.microsoft.com/kb/828017/ -[827714 FIX: A query may fail with retail assertion when you use the NOLOCK hint or the READ UNCOMMITTED isolation level]:http://support.microsoft.com/kb/827714/ -[828308 FIX: An Internet Explorer script error occurs when you access metadata information by using DTS in SQL Server Enterprise Manager]:http://support.microsoft.com/kb/828308/ -[828096 FIX: Key Locks Are Held Until the End of the Statement for Rows That Do Not Pass Filter Criteria]:http://support.microsoft.com/kb/828096/ -[828699 FIX: An Access Violation Occurs When You Run DBCC UPDATEUSAGE on a Database That Has Many Objects]:http://support.microsoft.com/kb/828699/ -[830466 FIX: You may receive an "Internal SQL Server error" error message when you run a Transact-SQL SELECT statement on a view that has many subqueries in SQL Server 2000]:http://support.microsoft.com/kb/830466/ -[827954 FIX: Slow Execution Times May Occur When You Run DML Statements Against Tables That Have Cascading Referential Integrity]:http://support.microsoft.com/kb/827954/ -[826754 FIX: A Deadlock Occurs If You Run an Explicit UPDATE STATISTICS Command]:http://support.microsoft.com/kb/826754/ -[826860 FIX: Linked Server Query May Return NULL If It Is Performed Through a Keyset Cursor]:http://support.microsoft.com/kb/826860/ -[826815 FIX: You receive an 8623 error message in SQL Server when you try to run a query that has multiple correlated subqueries]:http://support.microsoft.com/kb/826815/ -[826906 FIX: A query that uses a view that contains a correlated subquery and an aggregate runs slowly]:http://support.microsoft.com/kb/826906/ -[826822 FIX: A Member of the db_accessadmin Fixed Database Role Can Create an Alias for the dbo Special User]:http://support.microsoft.com/kb/826822/ -[826433 PRB: Additional SQL Server Diagnostics Added to Detect Unreported I/O Problems]:http://support.microsoft.com/kb/826433/ -[826364 FIX: A Query with a LIKE Comparison Results in a Non-Optimal Query Plan When You Use a Hungarian SQL Server Collation]:http://support.microsoft.com/kb/826364/ -[825854 FIX: No Exclusive Locks May Be Taken If the DisAllowsPageLocks Value Is Set to True]:http://support.microsoft.com/kb/825854/ -[826080 FIX: SQL Server 2000 protocol encryption applies to JDBC clients]:http://support.microsoft.com/kb/826080/ -[825043 FIX: Rows are unexpectedly deleted when you run a distributed query to delete or to update a linked server table]:http://support.microsoft.com/kb/825043/ -[825225 FIX: You receive an error message when you run a parallel query that uses an aggregation function or the GROUP BY clause]:http://support.microsoft.com/kb/825225/ -[319477 FIX: Extremely Large Number of User Tables on AWE System May Cause BPool::Map Errors]:http://support.microsoft.com/kb/319477/ -[319477 FIX: Extremely Large Number of User Tables on AWE System May Cause BPool::Map Errors]:http://support.microsoft.com/kb/319477/ -[823877 FIX: An Access Violation May Occur When You Run a Query That Contains 32,000 or More OR Clauses]:http://support.microsoft.com/kb/823877/ -[824027 FIX: A Cursor with a Large Object Parameter May Cause an Access Violation on CStmtCond::XretExecute]:http://support.microsoft.com/kb/824027/ -[820788 FIX: Delayed domain authentication may cause SQL Server to stop responding]:http://support.microsoft.com/kb/820788/ -[821741 FIX: Lock monitor exception in DeadlockMonitor::ResolveDeadlock]:http://support.microsoft.com/kb/821741/ -[821548 FIX: A Parallel Query May Generate an Access Violation After You Install SQL Server 2000 SP3]:http://support.microsoft.com/kb/821548/ -[821740 FIX: MS DTC Transaction Commit Operation Blocks Itself]:http://support.microsoft.com/kb/821740/ -[823514 FIX: Build 8.00.0837: A query that contains a correlated subquery runs slowly]:http://support.microsoft.com/kb/823514/ -[826161 FIX: You are prompted for password confirmation after you change a standard SQL Server login]:http://support.microsoft.com/kb/826161/ -[821277 MS03-031: Security patch for SQL Server 2000 Service Pack 3]:http://support.microsoft.com/kb/821277/ -[821337 FIX: Localized versions of SQL Mail and the Web Assistant Wizard may not work as expected in SQL Server 2000 64 bit]:http://support.microsoft.com/kb/821337/ -[818388 FIX: A Transact-SQL Statement That Is Embedded in the Database Name Runs with System Administrator Permissions]:http://support.microsoft.com/kb/818388/ -[826161 FIX: You are prompted for password confirmation after you change a standard SQL Server login]:http://support.microsoft.com/kb/826161/ -[821280 MS03-031: Security Patch for SQL Server 2000 64-bit]:http://support.microsoft.com/kb/821280/ -[818766 FIX: Intense SQL Server activity results in spinloop wait]:http://support.microsoft.com/kb/818766/ -[819662 FIX: Distribution Cleanup Agent Incorrectly Cleans Up Entries for Anonymous Subscribers]:http://support.microsoft.com/kb/819662/ -[819248 FIX: An access violation exception may occur when you insert a row in a table that is referenced by indexed views in SQL Server 2000]:http://support.microsoft.com/kb/819248/ -[819662 FIX: Distribution Cleanup Agent Incorrectly Cleans Up Entries for Anonymous Subscribers]:http://support.microsoft.com/kb/819662/ -[818897 FIX: Invalid TDS Sent to SQL Server Results in Access Violation]:http://support.microsoft.com/kb/818897/ -[818899 FIX: Error Message 3628 May Occur When You Run a Complex Query]:http://support.microsoft.com/kb/818899/ -[818729 FIX: Internal Query Processor Error 8623 When Microsoft SQL Server Tries to Compile a Plan for a Complex Query]:http://support.microsoft.com/kb/818729/ -[818540 FIX: SQL Server Enterprise Manager unexpectedly quits when you modify a DTS package]:http://support.microsoft.com/kb/818540/ -[818414 FIX: The Sqldumper.exe File Does Not Generate a Userdump File When It Runs Against a Windows Service]:http://support.microsoft.com/kb/818414/ -[818097 FIX: An Access Violation May Occur When You Run DBCC DBREINDEX on a Table That Has Hypothetical Indexes]:http://support.microsoft.com/kb/818097/ -[818188 FIX: Query on the sysmembers Virtual Table May Fail with a Stack Overflow]:http://support.microsoft.com/kb/818188/ -[817464 FIX: Using Sp_executesql in Merge Agent Operations]:http://support.microsoft.com/kb/817464/ -[817464 FIX: Using Sp_executesql in Merge Agent Operations]:http://support.microsoft.com/kb/817464/ -[813524 FIX: OLE DB conversion errors may occur after you select a literal string that represents datetime data as a column]:http://support.microsoft.com/kb/813524/ -[816440 FIX: Error 8623 is Raised When SQL Server Compiles a Complex Query]:http://support.microsoft.com/kb/816440/ -[817709 FIX: SQL Server 2000 might produce an incorrect cardinality estimate for outer joins]:http://support.microsoft.com/kb/817709/ -[815249 FIX: Performance of a query that is run from a client program on a SQL Server SP3 database is slow after you restart the instance of SQL Server]:http://support.microsoft.com/kb/815249/ -[817081 FIX: You receive an error message when you use the SQL-DMO BulkCopy object to import data into a SQL Server table]:http://support.microsoft.com/kb/817081/ -[816840 FIX: Error 17883 May Display Message Text That Is Not Correct]:http://support.microsoft.com/kb/816840/ -[816985 FIX: You cannot install SQL Server 2000 SP3 on the Korean version of SQL Server 2000]:http://support.microsoft.com/kb/816985/ -[815057 FIX: SQL Server 2000 Uninstall Option Does Not Remove All Files]:http://support.microsoft.com/kb/815057/ -[816039 FIX: Code Point Comparison Semantics for SQL_Latin1_General_Cp850_BIN Collation]:http://support.microsoft.com/kb/816039/ -[816084 FIX: sysindexes.statblob Column May Be Corrupted After You Run a DBCC DBREINDEX Statement]:http://support.microsoft.com/kb/816084/ -[810185 SQL Server 2000 hotfix update for SQL Server 2000 Service Pack 3 and 3a]:http://support.microsoft.com/kb/810185/ -[814035 FIX: A Full-Text Population Fails After You Apply SQL Server 2000 Service Pack 3]:http://support.microsoft.com/kb/814035/ -[815115 FIX: A DTS package that uses global variables ignores an error message raised by RAISERROR]:http://support.microsoft.com/kb/815115/ -[814889 FIX: A DELETE statement with a JOIN might fail and you receive a 625 error]:http://support.microsoft.com/kb/814889/ -[814893 FIX: Error Message: "Insufficient key column information for updating" Occurs in SQL Server 2000 SP3]:http://support.microsoft.com/kb/814893/ -[810163 FIX: An Access Violation Occurs if an sp_cursoropen Call References a Parameter That Is Not Defined]:http://support.microsoft.com/kb/810163/ -[810688 FIX: Merge Agent Can Resend Changes for Filtered Publications]:http://support.microsoft.com/kb/810688/ -[811611 FIX: Reinitialized SQL Server CE 2.0 subscribers may experience data loss and non-convergence]:http://support.microsoft.com/kb/811611/ -[813769 FIX: You May Experience Slow Performance When You Debug a SQL Server Service]:http://support.microsoft.com/kb/813769/ -[814113 FIX: DTS Designer may generate an access violation after you install SQL Server 2000 Service Pack 3]:http://support.microsoft.com/kb/814113/ -[814032 FIX: Merge publications cannot synchronize on SQL Server 2000 Service Pack 3]:http://support.microsoft.com/kb/814032/ -[SQL Server 2000 Service Pack 3 (SP3 / SP3a)]:http://www.microsoft.com/downloads/details.aspx?familyid=90DCD52C-0488-4E46-AFBF-ACACE5369FA3 -[818406 FIX: A Transact-SQL query that uses views may fail unexpectedly in SQL Server 2000 SP2]:http://support.microsoft.com/kb/818406/ -[818763 FIX: Intense SQL Server Activity Results in Spinloop Wait in SQL Server 2000 Service Pack 2]:http://support.microsoft.com/kb/818763/ -[818096 FIX: Many Extent Lock Time-outs May Occur During Extent Allocation]:http://support.microsoft.com/kb/818096/ -[816937 FIX: A memory leak may occur when you use the sp_OAMethod stored procedure to call a method of a COM object]:http://support.microsoft.com/kb/816937/ -[814889 FIX: A DELETE statement with a JOIN might fail and you receive a 625 error]:http://support.microsoft.com/kb/814889/ -[813759 FIX: A Large Number of NULL Values in Join Columns Result in Slow Query Performance]:http://support.microsoft.com/kb/813759/ -[813769 FIX: You May Experience Slow Performance When You Debug a SQL Server Service]:http://support.microsoft.com/kb/813769/ -[814460 FIX: Merge Replication with Alternate Synchronization Partners May Not Succeed After You Change the Retention Period]:http://support.microsoft.com/kb/814460/ -[812995 FIX: A Query with an Aggregate Function May Fail with a 3628 Error]:http://support.microsoft.com/kb/812995/ -[813494 FIX: Distribution Agent Fails with "Violation of Primary Key Constraint" Error Message]:http://support.microsoft.com/kb/813494/ -[812798 FIX: A UNION ALL View May Not Use Index If Partitions Are Removed at Compile Time]:http://support.microsoft.com/kb/812798/ -[812250 FIX: Indexed View May Cause a Handled Access Violation in CIndex::SetLevel1Names]:http://support.microsoft.com/kb/812250/ -[812393 FIX: Update or Delete Statement Fails with Error 1203 During Row Lock Escalation]:http://support.microsoft.com/kb/812393/ -[811703 FIX: Unexpected results from partial aggregations based on conversions]:http://support.microsoft.com/kb/811703/ -[810688 FIX: Merge Agent Can Resend Changes for Filtered Publications]:http://support.microsoft.com/kb/810688/ -[811611 FIX: Reinitialized SQL Server CE 2.0 subscribers may experience data loss and non-convergence]:http://support.microsoft.com/kb/811611/ -[811478 FIX: Restoring a SQL Server 7.0 database backup in SQL Server 2000 Service Pack 2 (SP2) may cause an assertion error in the Xdes.cpp file]:http://support.microsoft.com/kb/811478/ -[811205 FIX: An error message occurs when you perform a database or a file SHRINK operation]:http://support.microsoft.com/kb/811205/ -[811052 FIX: Latch Time-Out Message 845 Occurs When You Perform a Database or File SHRINK Operation]:http://support.microsoft.com/kb/811052/ -[810920 FIX: The JOIN queries in the triggers that involve the inserted table or the deleted table may return results that are not consistent]:http://support.microsoft.com/kb/810920/ -[810526 FIX: Cursors That Have a Long Lifetime May Cause Memory Fragmentation]:http://support.microsoft.com/kb/810526/ -[328551 FIX: Concurrency enhancements for the tempdb database]:http://support.microsoft.com/kb/328551/ -[810026 FIX: A DELETE Statement with a Self-Join May Fail and You Receive a 625 Error]:http://support.microsoft.com/kb/810026/ -[810163 FIX: An Access Violation Occurs if an sp_cursoropen Call References a Parameter That Is Not Defined]:http://support.microsoft.com/kb/810163/ -[810072 FIX: Merge Replication Reconciler Stack Overflow]:http://support.microsoft.com/kb/810072/ -[810052 FIX: A Memory Leak Occurs When Cursors Are Opened During a Connection]:http://support.microsoft.com/kb/810052/ -[810010 FIX: The fn_get_sql System Table Function May Cause Various Handled Access Violations]:http://support.microsoft.com/kb/810010/ -[331885 FIX: Update/Delete Statement Fails with Error 1203 During Page Lock Escalation]:http://support.microsoft.com/kb/331885/ -[331965 FIX: The xp_readmail Extended Stored Procedure Overwrites Attachment That Already Exists]:http://support.microsoft.com/kb/331965/ -[331968 FIX: The xp_readmail and xp_findnextmsg Extended Stored Procedures Do Not Read Mail in Time Received Order]:http://support.microsoft.com/kb/331968/ -[330212 FIX: Parallel logical operation returns results that are not consistent]:http://support.microsoft.com/kb/330212/ -[311104 FIX: The SELECT Statement with Parallelism Enabled May Cause an Assertion]:http://support.microsoft.com/kb/311104/ -[329499 FIX: Replication Removed from Database After Restore WITH RECOVERY]:http://support.microsoft.com/kb/329499/ -[329487 FIX: Transaction Log Restore Fails with Message 3456]:http://support.microsoft.com/kb/329487/ -[316333 SQL Server 2000 Security Update for Service Pack 2]:http://support.microsoft.com/kb/316333/ -[319851 FIX: Assertion and Error Message 3314 Occurs If You Try to Roll Back a Text Operation with READ UNCOMMITTED]:http://support.microsoft.com/kb/319851/ -[316333 SQL Server 2000 Security Update for Service Pack 2]:http://support.microsoft.com/kb/316333/ -[328354 FIX: A RESTORE DATABASE WITH RECOVERY Statement Can Fail with Error 9003 or Error 9004]:http://support.microsoft.com/kb/328354/ -[326999 FIX: Lock escalation on a scan while an update query is running causes a 1203 error message to occur]:http://support.microsoft.com/kb/326999/ -[810010 FIX: The fn_get_sql System Table Function May Cause Various Handled Access Violations]:http://support.microsoft.com/kb/810010/ -[322853 FIX: SQL Server Grants Unnecessary Permissions or an Encryption Function Contains Unchecked Buffers]:http://support.microsoft.com/kb/322853/ -[324186 FIX: Slow Compile Time and Execution Time with Query That Contains Aggregates and Subqueries]:http://support.microsoft.com/kb/324186/ -[Microsoft Security Bulletin MS02-039]:http://technet.microsoft.com/en-us/security/bulletin/ms02-039 -[319507 FIX: SQL Extended Procedure Functions Contain Unchecked Buffers]:http://support.microsoft.com/kb/319507/ -[319869 FIX: Improved SQL Manager Robustness for Odd Length Buffer]:http://support.microsoft.com/kb/319869/ -[319477 FIX: Extremely Large Number of User Tables on AWE System May Cause BPool::Map Errors]:http://support.microsoft.com/kb/319477/ -[318530 FIX: Reorder outer joins with filter criteria before non-selective joins and outer joins]:http://support.microsoft.com/kb/318530/ -[317979 FIX: Unchecked Buffer May Occur When You Connect to Remote Data Source]:http://support.microsoft.com/kb/317979/ -[318045 FIX: SELECT with Timestamp Column That Uses FOR XML AUTO May Fail with Stack Overflow or AV]:http://support.microsoft.com/kb/318045/ -[317748 FIX: Handle Leak Occurs in SQL Server When Service or Application Repeatedly Connects and Disconnects with Shared Memory Network Library]:http://support.microsoft.com/kb/317748 -[314003 FIX: Query That Uses DESC Index May Result in Access Violation]:http://support.microsoft.com/kb/314003/ -[315395 FIX: COM May Not Be Uninitialized for Worker Thread When You Use sp_OA]:http://support.microsoft.com/kb/315395/ -[313002 The Knowledge Base (KB) Article You Requested Is Currently Not Available]:http://support.microsoft.com/kb/313002/ -[313005 FIX: SELECT from Computed Column That References UDF Causes SQL Server to Terminate]:http://support.microsoft.com/kb/313005/ -[SQL Server 2000 Service Pack 2 (SP2)]:http://www.microsoft.com/downloads/details.aspx?FamilyID=75672496-af8e-40dc-853e-ad2c9fe96882 -[315395 FIX: COM May Not Be Uninitialized for Worker Thread When You Use sp_OA]:http://support.microsoft.com/kb/315395/ -[314003 FIX: Query That Uses DESC Index May Result in Access Violation]:http://support.microsoft.com/kb/314003/ -[313302 FIX: Shared Table Lock Is Not Released After Lock Escalation]:http://support.microsoft.com/kb/313302/ -[313005 FIX: SELECT from Computed Column That References UDF Causes SQL Server to Terminate]:http://support.microsoft.com/kb/313005/ -[308547 FIX: SELECT DISTINCT from Table with LEFT JOIN of View Causes Error Messages or Client Application May Stop Responding]:http://support.microsoft.com/kb/308547/ -[307540 FIX: SQLPutData May Result in Leak of Buffer Pool Memory]:http://support.microsoft.com/kb/307540/ -[307655 FIX: Querying Syslockinfo with Large Numbers of Locks May Cause Server to Stop Responding]:http://support.microsoft.com/kb/307655/ -[307538 FIX: SQLTrace Start and Stop is Now Reported in Windows NT Event Log for SQL Server 2000]:http://support.microsoft.com/kb/307538/ -[304850 FIX: SQL Server Text Formatting Functions Contain Unchecked Buffers]:http://support.microsoft.com/kb/304850/ -[SQL Server 2000 Service Pack 1 (SP1)]:http://www.microsoft.com/downloads/details.aspx?FamilyID=DFF43C50-51DF-4FE0-9717-DE41FB48556E -[299717 FIX: Query Method Used to Access Data May Allow Rights that the Login Might Not Normally Have]:http://support.microsoft.com/kb/299717/ -[297209 FIX: Deletes, Updates and Rank Based Selects May Cause Deadlock of MSSEARCH]:http://support.microsoft.com/kb/297209/ -[300194 FIX: Error 644 Using Two Indexes on a Column with Uppercase Preference Sort Order]:http://support.microsoft.com/kb/300194/ -[291683 The Knowledge Base (KB) Article You Requested Is Currently Not Available]:http://support.microsoft.com/kb/291683/ -[288122 FIX: Lock Monitor Uses Excessive CPU]:http://support.microsoft.com/kb/288122/ -[285290 FIX: Complex ANSI Join Query with Distributed Queries May Cause Handled Access Violation]:http://support.microsoft.com/kb/285290/ -[282416 FIX: Opening the Database Folder in SQL Server Enterprise Manager 2000 Takes a Long Time]:http://support.microsoft.com/kb/282416/ -[282279 FIX: Execution of sp_OACreate on COM Object Without Type Information Causes Server Shut Down]:http://support.microsoft.com/kb/282279/ -[278239 FIX: Extreme Memory Usage When Adding Many Security Roles]:http://support.microsoft.com/kb/278239/ -[281663 "Access Denied" Error Message When You Try to Use a Network Drive to Modify Windows 2000 Permissions]:http://support.microsoft.com/kb/281663/ -[280380 FIX: Buffer Overflow Exploit Possible with Extended Stored Procedures]:http://support.microsoft.com/kb/280380/ -[281769 FIX: Exception Access Violation Encountered During Query Normalization]:http://support.microsoft.com/kb/281769/ -[279183 FIX: Scripting Object with Several Extended Properties May Cause Exception]:http://support.microsoft.com/kb/279183/ -[279293 FIX: CASE Using LIKE with Empty String Can Result in Access Violation or Abnormal Server Shutdown]:http://support.microsoft.com/kb/279293/ -[276329 FIX: Complex Distinct or Group By Query Can Return Unexpected Results with Parallel Execution Plan]:http://support.microsoft.com/kb/276329/ -[275900 FIX: Linked Server Query with Hyphen in LIKE Clause May Run Slowly]:http://support.microsoft.com/kb/275900/ -[274330 FIX: Sending Open Files as Attachment in SQL Mail Fails with Error 18025]:http://support.microsoft.com/kb/274330/ -[274329 FIX: Optimizer Slow to Generate Query Plan for Complex Queries that have Many Joins and Semi-Joins]:http://support.microsoft.com/kb/274329/ - - -## Microsoft SQL Server 7.0 Builds - -| Build | KB / Description | Release Date | -|-----------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------| -| 7.00.1152 | [948113 MS08-040: Description of the security update for SQL Server 7.0: July 8, 2008] | 2008-07-08 | -| 7.00.1149 | [867763 FIX: An access violation exception may occur when you run a SELECT statement that contains complex JOIN operations in SQL Server 7.0] | 2006-06-01 | -| 7.00.1143 | [830233 New Connection Events Are Not Recorded in SQL Server Traces] | 2005-10-25 | -| 7.00.1143 | [829015 FIX: An attention signal that is sent from a SQL Server client application because of a query time-out may cause the SQL Server service to quit unexpectedly] | 2005-10-25 | -| 7.00.1097 | [822756 A Complex UPDATE Statement That Uses an Index Spool Operation May Cause an Assertion] | 2005-10-25 | -| 7.00.1094 | [821279 MS03-031: Security patch for SQL Server 7.0 Service Pack 4] | 2006-05-11 | -| 7.00.1094 | [815495 MS03-031: Cumulative security patch for SQL Server] | 2006-05-10 | -| 7.00.1092 | [820788 FIX: Delayed domain authentication may cause SQL Server to stop responding] | 2005-10-25 | -| 7.00.1087 | [814693 FIX: SQL Server 7.0 Scheduler May Periodically Stop Responding During Large Sort Operation] | 2005-09-27 | -| 7.00.1079 | [329499 FIX: Replication Removed from Database After Restore WITH RECOVERY] | 2005-10-11 | -| 7.00.1078 | [327068 INF: SQL Server 7.0 Security Update for Service Pack 4] | 2005-09-27 | -| 7.00.1077 | [316333 SQL Server 2000 Security Update for Service Pack 2] | 2006-11-24 | -| 7.00.1063 | [SQL Server 7.0 Service Pack 4 (SP4)] | 2002-04-26 | -| 7.00.1033 | [324469 FIX: Error message 9004 may occur when you restore a log that does not contain any transactions] | 2005-10-12 | -| 7.00.1026 | [319851 FIX: Assertion and Error Message 3314 Occurs If You Try to Roll Back a Text Operation with READ UNCOMMITTED] | 2005-10-18 | -| 7.00.1004 | [304851 FIX: SQL Server Text Formatting Functions Contain Unchecked Buffers] | 2004-08-05 | -| 7.00.996 | [299717 FIX: Query Method Used to Access Data May Allow Rights that the Login Might Not Normally Have] | 2004-08-09 | -| 7.00.978 | [285870 FIX: Update With Self Join May Update Incorrect Number Of Rows] | 2003-10-28 | -| 7.00.977 | [284351 FIX: SQL Server Profiler and SQL Server Agent Alerts May Fail to Work After Installing SQL Server 7.0 SP3] | 2002-04-25 | -| 7.00.970 | [283837 FIX: SQL Server May Generate Nested Query For Linked Server When Option Is Disabled] | 2002-10-15 | -| 7.00.970 | [282243 FIX: Incorrect Results with Join of Column Converted to Binary] | 2003-10-29 | -| 7.00.961 | [SQL Server 7.0 Service Pack 3 (SP3)] | 2000-12-15 | -| 7.00.921 | [283837 FIX: SQL Server May Generate Nested Query For Linked Server When Option Is Disabled] | 2002-10-15 | -| 7.00.919 | [282243 FIX: Incorrect Results with Join of Column Converted to Binary] | 2003-10-29 | -| 7.00.918 | [280380 FIX: Buffer Overflow Exploit Possible with Extended Stored Procedures] | 2004-06-29 | -| 7.00.917 | [279180 FIX: Bcp.exe with Long Query String Can Result in Assertion Failure] | 2005-09-26 | -| 7.00.910 | [275901 FIX: SQL RPC That Raises Error Will Mask @@ERROR with Msg 7221] | 2003-10-31 | -| 7.00.905 | [274266 FIX: Data Modification Query with a Distinct Subquery on a View May Cause Error 3624] | 2004-07-15 | -| 7.00.889 | [243741 FIX: Replication Initialize Method Causes Handle Leak on Failure] | 2005-10-05 | -| 7.00.879 | [281185 FIX: Linked Index Server Query Through OLE DB Provider with OR Clause Reports Error 7349] | 2006-03-14 | -| 7.00.857 | [260346 FIX: Transactional Publications with a Filter on Numeric Columns Fail to Replicate Data] | 2006-03-14 | -| 7.00.843 | [266766 FIX: Temporary Stored Procedures in SA Owned Databases May Bypass Permission Checks When You Run Stored Procedures] | 2006-03-14 | -| 7.00.842 | [SQL Server 7.0 Service Pack 2 (SP2)] | 2000-03-20 | -| 7.00.839 | SQL Server 7.0 Service Pack 2 (SP2) Unidentified | | -| 7.00.835 | SQL Server 7.0 Service Pack 2 (SP2) Beta | | -| 7.00.776 | [258087 FIX: Non-Admin User That Executes Batch While Server Shuts Down May Encounter Retail Assertion] | 2006-03-14 | -| 7.00.770 | [252905 FIX: Slow Compile Time on Complex Joins with Unfiltered Table] | 2006-03-14 | -| 7.00.745 | [253738 FIX: SQL Server Components that Access the Registry in a Cluster Environment May Cause a Memory Leak] | 2005-10-07 | -| 7.00.722 | [239458 FIX: Replication: Problems Mapping Characters to DB2 OLEDB Subscribers] | 2005-10-05 | -| 7.00.699 | [SQL Server 7.0 Service Pack 1 (SP1)] | 1999-07-01 | -| 7.00.689 | SQL Server 7.0 Service Pack 1 (SP1) Beta | | -| 7.00.677 | SQL Server 7.0 MSDE from Office 2000 disc | | -| 7.00.662 | [232707 FIX: Query with Complex View Hierarchy May Be Slow to Compile] | 2005-10-05 | -| 7.00.658 | [244763 FIX: Access Violation Under High Cursor Stress] | 2006-03-14 | -| 7.00.657 | [229875 FIX: Unable to Perform Automated Installation of SQL 7.0 Using File Images] | 2005-10-05 | -| 7.00.643 | [220156 FIX: SQL Cluster Install Fails When SVS Name Contains Special Characters] | 2005-10-05 | -| 7.00.623 | SQL Server 7.0 RTM (Gold, no SP) | 1998-11-27 | -| 7.00.583 | SQL Server 7.0 RC1 | | -| 7.00.517 | SQL Server 7.0 Beta 3 | | - -[948113 MS08-040: Description of the security update for SQL Server 7.0: July 8, 2008]:http://support.microsoft.com/kb/948113/ -[867763 FIX: An access violation exception may occur when you run a SELECT statement that contains complex JOIN operations in SQL Server 7.0]:http://support.microsoft.com/kb/867763/ -[830233 New Connection Events Are Not Recorded in SQL Server Traces]:http://support.microsoft.com/kb/830233/ -[829015 FIX: An attention signal that is sent from a SQL Server client application because of a query time-out may cause the SQL Server service to quit unexpectedly]:http://support.microsoft.com/kb/829015/ -[822756 A Complex UPDATE Statement That Uses an Index Spool Operation May Cause an Assertion]:http://support.microsoft.com/kb/822756/ -[821279 MS03-031: Security patch for SQL Server 7.0 Service Pack 4]:http://support.microsoft.com/kb/821279/ -[815495 MS03-031: Cumulative security patch for SQL Server]:http://support.microsoft.com/kb/815495/ -[820788 FIX: Delayed domain authentication may cause SQL Server to stop responding]:http://support.microsoft.com/kb/820788/ -[814693 FIX: SQL Server 7.0 Scheduler May Periodically Stop Responding During Large Sort Operation]:http://support.microsoft.com/kb/814693/ -[329499 FIX: Replication Removed from Database After Restore WITH RECOVERY]:http://support.microsoft.com/kb/329499/ -[327068 INF: SQL Server 7.0 Security Update for Service Pack 4]:http://support.microsoft.com/kb/327068/ -[316333 SQL Server 2000 Security Update for Service Pack 2]:http://support.microsoft.com/kb/316333/ +[983811 MS12-060: Description of the security update for SQL Server 2000 Service Pack 4 QFE: August 14, 2012]:https://support.microsoft.com/help/983811/ +[983809 MS12-027: Description of the security update for Microsoft SQL Server 2000 Service Pack 4 QFE: April 10, 2012]:https://support.microsoft.com/help/983809/ +[960083 MS09-004: Description of the security update for SQL Server 2000 QFE and for MSDE 2000: February 10, 2009]:https://support.microsoft.com/help/960083/ + + +## Microsoft SQL Server 7.0 Builds + + +| Build | KB / Description | Release Date | +|-----------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------| +| 7.00.1152 | [948113 MS08-040: Description of the security update for SQL Server 7.0: July 8, 2008] | 2008-07-08 | +| 7.00.1149 | 867763 FIX: An access violation exception may occur when you run a SELECT statement that contains complex JOIN operations in SQL Server 7.0 | 2006-06-01 | +| 7.00.1143 | 830233 New Connection Events Are Not Recorded in SQL Server Traces | 2005-10-25 | +| 7.00.1143 | 829015 FIX: An attention signal that is sent from a SQL Server client application because of a query time-out may cause the SQL Server service to quit unexpectedly | 2005-10-25 | +| 7.00.1097 | 822756 A Complex UPDATE Statement That Uses an Index Spool Operation May Cause an Assertion | 2005-10-25 | +| 7.00.1094 | 821279 MS03-031: Security patch for SQL Server 7.0 Service Pack 4 | 2006-05-11 | +| 7.00.1094 | 815495 MS03-031: Cumulative security patch for SQL Server | 2006-05-10 | +| 7.00.1092 | 820788 FIX: Delayed domain authentication may cause SQL Server to stop responding | 2005-10-25 | +| 7.00.1087 | 814693 FIX: SQL Server 7.0 Scheduler May Periodically Stop Responding During Large Sort Operation | 2005-09-27 | +| 7.00.1079 | 329499 FIX: Replication Removed from Database After Restore WITH RECOVERY | 2005-10-11 | +| 7.00.1078 | 327068 INF: SQL Server 7.0 Security Update for Service Pack 4 | 2005-09-27 | +| 7.00.1077 | 316333 SQL Server 2000 Security Update for Service Pack 2 | 2006-11-24 | +| 7.00.1063 | [SQL Server 7.0 Service Pack 4 (SP4)] | 2002-04-26 | +| 7.00.1033 | 324469 FIX: Error message 9004 may occur when you restore a log that does not contain any transactions | 2005-10-12 | +| 7.00.1026 | 319851 FIX: Assertion and Error Message 3314 Occurs If You Try to Roll Back a Text Operation with READ UNCOMMITTED | 2005-10-18 | +| 7.00.1004 | 304851 FIX: SQL Server Text Formatting Functions Contain Unchecked Buffers | 2004-08-05 | +| 7.00.996 | 299717 FIX: Query Method Used to Access Data May Allow Rights that the Login Might Not Normally Have | 2004-08-09 | +| 7.00.978 | 285870 FIX: Update With Self Join May Update Incorrect Number Of Rows | 2003-10-28 | +| 7.00.977 | 284351 FIX: SQL Server Profiler and SQL Server Agent Alerts May Fail to Work After Installing SQL Server 7.0 SP3 | 2002-04-25 | +| 7.00.970 | 283837 FIX: SQL Server May Generate Nested Query For Linked Server When Option Is Disabled | 2002-10-15 | +| 7.00.970 | 282243 FIX: Incorrect Results with Join of Column Converted to Binary | 2003-10-29 | +| 7.00.961 | SQL Server 7.0 Service Pack 3 (SP3) | 2000-12-15 | +| 7.00.921 | 283837 FIX: SQL Server May Generate Nested Query For Linked Server When Option Is Disabled | 2002-10-15 | +| 7.00.919 | 282243 FIX: Incorrect Results with Join of Column Converted to Binary | 2003-10-29 | +| 7.00.918 | 280380 FIX: Buffer Overflow Exploit Possible with Extended Stored Procedures | 2004-06-29 | +| 7.00.917 | 279180 FIX: Bcp.exe with Long Query String Can Result in Assertion Failure | 2005-09-26 | +| 7.00.910 | 275901 FIX: SQL RPC That Raises Error Will Mask @@ERROR with Msg 7221 | 2003-10-31 | +| 7.00.905 | 274266 FIX: Data Modification Query with a Distinct Subquery on a View May Cause Error 3624 | 2004-07-15 | +| 7.00.889 | 243741 FIX: Replication Initialize Method Causes Handle Leak on Failure | 2005-10-05 | +| 7.00.879 | 281185 FIX: Linked Index Server Query Through OLE DB Provider with OR Clause Reports Error 7349 | 2006-03-14 | +| 7.00.857 | 260346 FIX: Transactional Publications with a Filter on Numeric Columns Fail to Replicate Data | 2006-03-14 | +| 7.00.843 | 266766 FIX: Temporary Stored Procedures in SA Owned Databases May Bypass Permission Checks When You Run Stored Procedures | 2006-03-14 | +| 7.00.842 | SQL Server 7.0 Service Pack 2 (SP2) | 2000-03-20 | +| 7.00.839 | SQL Server 7.0 Service Pack 2 (SP2) Unidentified | | +| 7.00.835 | SQL Server 7.0 Service Pack 2 (SP2) Beta | | +| 7.00.776 | 258087 FIX: Non-Admin User That Executes Batch While Server Shuts Down May Encounter Retail Assertion | 2006-03-14 | +| 7.00.770 | 252905 FIX: Slow Compile Time on Complex Joins with Unfiltered Table | 2006-03-14 | +| 7.00.745 | 253738 FIX: SQL Server Components that Access the Registry in a Cluster Environment May Cause a Memory Leak | 2005-10-07 | +| 7.00.722 | 239458 FIX: Replication: Problems Mapping Characters to DB2 OLEDB Subscribers | 2005-10-05 | +| 7.00.699 | SQL Server 7.0 Service Pack 1 (SP1) | 1999-07-01 | +| 7.00.689 | SQL Server 7.0 Service Pack 1 (SP1) Beta | | +| 7.00.677 | SQL Server 7.0 MSDE from Office 2000 disc | | +| 7.00.662 | 232707 FIX: Query with Complex View Hierarchy May Be Slow to Compile | 2005-10-05 | +| 7.00.658 | 244763 FIX: Access Violation Under High Cursor Stress | 2006-03-14 | +| 7.00.657 | 229875 FIX: Unable to Perform Automated Installation of SQL 7.0 Using File Images | 2005-10-05 | +| 7.00.643 | 220156 FIX: SQL Cluster Install Fails When SVS Name Contains Special Characters | 2005-10-05 | +| 7.00.623 | SQL Server 7.0 RTM (Gold, no SP) | 1998-11-27 | +| 7.00.583 | SQL Server 7.0 RC1 | | +| 7.00.517 | SQL Server 7.0 Beta 3 | | + +[948113 MS08-040: Description of the security update for SQL Server 7.0: July 8, 2008]:https://support.microsoft.com/help/941203 [SQL Server 7.0 Service Pack 4 (SP4)]:https://www.microsoft.com/en-us/download/details.aspx?id=7959 -[324469 FIX: Error message 9004 may occur when you restore a log that does not contain any transactions]:http://support.microsoft.com/kb/324469/ -[319851 FIX: Assertion and Error Message 3314 Occurs If You Try to Roll Back a Text Operation with READ UNCOMMITTED]:http://support.microsoft.com/kb/319851/ -[304851 FIX: SQL Server Text Formatting Functions Contain Unchecked Buffers]:http://support.microsoft.com/kb/304851/ -[299717 FIX: Query Method Used to Access Data May Allow Rights that the Login Might Not Normally Have]:http://support.microsoft.com/kb/299717/ -[285870 FIX: Update With Self Join May Update Incorrect Number Of Rows]:http://support.microsoft.com/kb/285870/ -[284351 FIX: SQL Server Profiler and SQL Server Agent Alerts May Fail to Work After Installing SQL Server 7.0 SP3]:http://support.microsoft.com/kb/284351/ -[283837 FIX: SQL Server May Generate Nested Query For Linked Server When Option Is Disabled]:http://support.microsoft.com/kb/283837/ -[282243 FIX: Incorrect Results with Join of Column Converted to Binary]:http://support.microsoft.com/kb/282243/ -[SQL Server 7.0 Service Pack 3 (SP3)]:https://support.microsoft.com/en-us/kb/274799 -[283837 FIX: SQL Server May Generate Nested Query For Linked Server When Option Is Disabled]:http://support.microsoft.com/kb/283837/ -[282243 FIX: Incorrect Results with Join of Column Converted to Binary]:http://support.microsoft.com/kb/282243/ -[280380 FIX: Buffer Overflow Exploit Possible with Extended Stored Procedures]:http://support.microsoft.com/kb/280380/ -[279180 FIX: Bcp.exe with Long Query String Can Result in Assertion Failure]:http://support.microsoft.com/kb/279180/ -[275901 FIX: SQL RPC That Raises Error Will Mask @@ERROR with Msg 7221]:http://support.microsoft.com/kb/275901/ -[274266 FIX: Data Modification Query with a Distinct Subquery on a View May Cause Error 3624]:http://support.microsoft.com/kb/274266/ -[243741 FIX: Replication Initialize Method Causes Handle Leak on Failure]:http://support.microsoft.com/kb/243741/ -[281185 FIX: Linked Index Server Query Through OLE DB Provider with OR Clause Reports Error 7349]:http://support.microsoft.com/kb/281185/ -[260346 FIX: Transactional Publications with a Filter on Numeric Columns Fail to Replicate Data]:http://support.microsoft.com/kb/260346/ -[266766 FIX: Temporary Stored Procedures in SA Owned Databases May Bypass Permission Checks When You Run Stored Procedures]:http://support.microsoft.com/kb/266766/ -[SQL Server 7.0 Service Pack 2 (SP2)]:https://support.microsoft.com/en-us/kb/254561 -[258087 FIX: Non-Admin User That Executes Batch While Server Shuts Down May Encounter Retail Assertion]:http://support.microsoft.com/kb/258087/ -[252905 FIX: Slow Compile Time on Complex Joins with Unfiltered Table]:http://support.microsoft.com/kb/252905/ -[253738 FIX: SQL Server Components that Access the Registry in a Cluster Environment May Cause a Memory Leak]:http://support.microsoft.com/kb/253738/ -[239458 FIX: Replication: Problems Mapping Characters to DB2 OLEDB Subscribers]:http://support.microsoft.com/kb/239458/ -[SQL Server 7.0 Service Pack 1 (SP1)]:https://support.microsoft.com/en-us/kb/232570 -[232707 FIX: Query with Complex View Hierarchy May Be Slow to Compile]:http://support.microsoft.com/kb/232707/ -[244763 FIX: Access Violation Under High Cursor Stress]:http://support.microsoft.com/kb/244763/ -[229875 FIX: Unable to Perform Automated Installation of SQL 7.0 Using File Images]:http://support.microsoft.com/kb/229875/ -[220156 FIX: SQL Cluster Install Fails When SVS Name Contains Special Characters]:http://support.microsoft.com/kb/220156/ - - -## Microsoft SQL Server 6.5 Builds - -| Build | KB / Description | Release Date | -|----------|---------------------------------------------------------------------------------------------------------------------|--------------| -| 6.50.480 | [238621 FIX: Integrated Security Sprocs Have Race Condition Between Threads That Can Result in an Access Violation] | 2005-10-07 | -| 6.50.479 | [273914 Microsoft SQL Server 6.5 Post Service Pack 5a Update] | 2000-09-12 | -| 6.50.469 | [249343 FIX: SQL Performance Counters May Cause Handle Leak in WinLogon Process] | | -| 6.50.465 | [250493 FIX: Memory Leak with xp_sendmail Using Attachments] | | -| 6.50.464 | [275483 FIX: Insert Error (Msg 213) with NO_BROWSETABLE and INSERT EXEC] | 1999-11-08 | -| 6.50.462 | [238620 FIX: Terminating Clients with TSQL KILL May Cause ODS AV] | | -| 6.50.451 | [236447 FIX: ODS Errors During Attention Signal May Cause SQL Server to Stop Responding] | | -| 6.50.444 | [240172 FIX: Multiple Attachments not Sent Correctly Using xp_sendmail] | | -| 6.50.441 | [234679 FIX: SNMP Extended Stored Procedures May Leak Memory] | | -| 6.50.422 | [187278 FIX: Large Query Text from Socket Client May Cause Open Data Services Access Violation] | | -| 6.50.416 | [197176 Microsoft SQL Server 6.5 Service Pack 5a (SP5a)] | 1998-12-24 | -| 6.50.415 | Microsoft SQL Server 6.5 Service Pack 5 (SP5) | | -| 6.50.339 | Y2K hotfix | | -| 6.50.297 | "Site Server 3.0 Commerce Edition" hotfix | | -| 6.50.281 | 178295 Microsoft SQL Server 6.5 Service Pack 4 (SP4) | | -| 6.50.259 | 6.5 as included with "Small Business Server" only | | -| 6.50.258 | Microsoft SQL Server 6.5 Service Pack 3a (SP3a) | | -| 6.50.252 | Microsoft SQL Server 6.5 Service Pack 3 (SP3) | | -| 6.50.240 | [160727 Microsoft SQL Server 6.5 Service Pack 2 (SP2)] | | -| 6.50.213 | [153096 Microsoft SQL Server 6.5 Service Pack 1 (SP1)] | | -| 6.50.201 | Microsoft SQL Server 6.5 RTM | 1996-06-30 | - -[238621 FIX: Integrated Security Sprocs Have Race Condition Between Threads That Can Result in an Access Violation]:http://support.microsoft.com/kb/238621/en-us# -[273914 Microsoft SQL Server 6.5 Post Service Pack 5a Update]:http://support.microsoft.com/kb/273914/en-us# -[249343 FIX: SQL Performance Counters May Cause Handle Leak in WinLogon Process]:http://support.microsoft.com/kb/249343/en-us# -[250493 FIX: Memory Leak with xp_sendmail Using Attachments]:http://support.microsoft.com/kb/250493/en-us# -[275483 FIX: Insert Error (Msg 213) with NO_BROWSETABLE and INSERT EXEC]:http://support.microsoft.com/kb/275483/en-us# -[238620 FIX: Terminating Clients with TSQL KILL May Cause ODS AV]:http://support.microsoft.com/kb/238620/en-us# -[236447 FIX: ODS Errors During Attention Signal May Cause SQL Server to Stop Responding]:http://support.microsoft.com/kb/236447/en-us# -[240172 FIX: Multiple Attachments not Sent Correctly Using xp_sendmail]:http://support.microsoft.com/kb/240172/en-us# -[234679 FIX: SNMP Extended Stored Procedures May Leak Memory]:http://support.microsoft.com/kb/234679/en-us# -[187278 FIX: Large Query Text from Socket Client May Cause Open Data Services Access Violation]:http://support.microsoft.com/kb/187278/en-us# -[197176 Microsoft SQL Server 6.5 Service Pack 5a (SP5a)]:http://support.microsoft.com/kb/197176/en-us# -[178295 Microsoft SQL Server 6.5 Service Pack 4 (SP4)]:http://support.microsoft.com/kb/178295/en-us# -[160727 Microsoft SQL Server 6.5 Service Pack 2 (SP2)]:http://support.microsoft.com/kb/160727/en-us# -[153096 Microsoft SQL Server 6.5 Service Pack 1 (SP1)]:http://support.microsoft.com/kb/153096/en-us# - - -## Microsoft SQL Server 6.0 Builds + + +## Microsoft SQL Server 6.5 Builds + + +| Build | KB / Description | Release Date | +|----------|-------------------------------------------------------------------------------------------------------------------|--------------| +| 6.50.480 | 238621 FIX: Integrated Security Sprocs Have Race Condition Between Threads That Can Result in an Access Violation | 2005-10-07 | +| 6.50.479 | 273914 Microsoft SQL Server 6.5 Post Service Pack 5a Update | 2000-09-12 | +| 6.50.469 | 249343 FIX: SQL Performance Counters May Cause Handle Leak in WinLogon Process | | +| 6.50.465 | 250493 FIX: Memory Leak with xp_sendmail Using Attachments | | +| 6.50.464 | 275483 FIX: Insert Error (Msg 213) with NO_BROWSETABLE and INSERT EXEC | 1999-11-08 | +| 6.50.462 | 238620 FIX: Terminating Clients with TSQL KILL May Cause ODS AV | | +| 6.50.451 | 236447 FIX: ODS Errors During Attention Signal May Cause SQL Server to Stop Responding | | +| 6.50.444 | 240172 FIX: Multiple Attachments not Sent Correctly Using xp_sendmail | | +| 6.50.441 | 234679 FIX: SNMP Extended Stored Procedures May Leak Memory | | +| 6.50.422 | 187278 FIX: Large Query Text from Socket Client May Cause Open Data Services Access Violation | | +| 6.50.416 | 197176 Microsoft SQL Server 6.5 Service Pack 5a (SP5a) | 1998-12-24 | +| 6.50.415 | Microsoft SQL Server 6.5 Service Pack 5 (SP5) | | +| 6.50.339 | Y2K hotfix | | +| 6.50.297 | "Site Server 3.0 Commerce Edition" hotfix | | +| 6.50.281 | 178295 Microsoft SQL Server 6.5 Service Pack 4 (SP4) | | +| 6.50.259 | 6.5 as included with "Small Business Server" only | | +| 6.50.258 | Microsoft SQL Server 6.5 Service Pack 3a (SP3a) | | +| 6.50.252 | Microsoft SQL Server 6.5 Service Pack 3 (SP3) | | +| 6.50.240 | 160727 Microsoft SQL Server 6.5 Service Pack 2 (SP2) | | +| 6.50.213 | 153096 Microsoft SQL Server 6.5 Service Pack 1 (SP1) | | +| 6.50.201 | Microsoft SQL Server 6.5 RTM | 1996-06-30 | + + +## Microsoft SQL Server 6.0 Builds + | Build | KB / Description | Release Date | |----------|-----------------------------------------------|--------------| diff --git a/SSMS/README.md b/SSMS/README.md index bfdf0601..6a48739c 100644 --- a/SSMS/README.md +++ b/SSMS/README.md @@ -1,26 +1,166 @@ # SQL Server Management Studio -SQL Server Management Studio is an integrated environment for managing your SQL Server infrastructure and Azure SQL Database. Management Studio provides tools to configure, monitor, and administer instances of SQL Server. It also provides tools to deploy, monitor, and upgrade the data-tier components, such as databases and data warehouses used by your applications, and to build queries and scripts. +SQL Server Management Studio is an integrated environment for managing your SQL Server infrastructure and Azure SQL Database. +Management Studio provides tools to configure, monitor, and administer instances of SQL Server. +It also provides tools to deploy, monitor, and upgrade the data-tier components, such as databases and data warehouses used by your applications, and to build queries and scripts. + - [SSMS Tips](SSMS_Tips.md) - [SSMS Addins](SSMS_Addins.md) - [SSMS Snippets](SSMS_Snippets) - [SSMS Shortcuts](SSMS_Shortcuts.md) - - [MSDN SQL Server Tools](https://msdn.microsoft.com/en-us/library/mt238365.aspx) - - [MSDN Download link](https://msdn.microsoft.com/en-us/library/mt238290.aspx) - - [MSDN Official page](https://msdn.microsoft.com/en-us/library/hh213248.aspx) - - [MSDN Code Snippets Schema Reference](https://msdn.microsoft.com/en-us/library/ms171418.aspx) - - [MSDN Add Transact-SQL Snippets](https://msdn.microsoft.com/en-us/library/gg492130.aspx) + - [Download SQL Server Management Studio (SSMS)](https://docs.microsoft.com/en-us/sql/ssms/download-sql-server-management-studio-ssms) + - [SQL Server Management Studio - Changelog (SSMS)](https://docs.microsoft.com/en-us/sql/ssms/sql-server-management-studio-changelog-ssms) + - [SQL Server Management Studio (SSMS) - Release Candidate](https://docs.microsoft.com/en-us/sql/ssms/sql-server-management-studio-ssms-release-candidate) + - [Previous SQL Server Management Studio Releases](https://docs.microsoft.com/en-us/sql/ssms/previous-sql-server-management-studio-releases) + - [SQLSentry Latest Builds of Management Studio](http://blogs.sqlsentry.com/team-posts/latest-builds-management-studio/) + - [SQL Server Tools](https://docs.microsoft.com/en-us/sql/ssdt/sql-server-tools) + - [SQL Server Management Studio (SSMS)](https://docs.microsoft.com/en-us/sql/ssms/sql-server-management-studio-ssms) + - [Microsoft Download Center SSMS](https://www.microsoft.com/en-us/download/search.aspx?q=sql%20server%20management%20studio&p=0&r=10&t=&s=Relevancy~Descending) + - [Add Transact-SQL Snippets](https://docs.microsoft.com/en-us/sql/relational-databases/scripting/add-transact-sql-snippets) -## SQL Server 2014 Management Studio download links +## Supported SQL Server versions +This version of SSMS works with all supported versions of SQL Server (SQL Server 2008 - SQL Server 2017), and provides the greatest level of support for working with the latest cloud features in Azure SQL Database, and Azure SQL Data Warehouse. +There is no explicit block for SQL Server 2000 or SQL Server 2005, but some features may not work properly. +Additionally, SSMS 17.x can be installed side-by-side with SSMS 16.X or SQL Server 2014 SSMS and earlier. + + +## Supported Operating systems +This release of **SSMS 17.x Version** supports the following platforms when used with the latest available service pack: Windows 10, Windows 8, Windows 8.1, Windows 7 (SP1), Windows Server 2016, Windows Server 2012 (64-bit), Windows Server 2012 R2 (64-bit), Windows Server 2008 R2 (64-bit) + +SSMS 18.x is not supported on Windows 8. Windows 10 / Windows Server 2016 requires version 1607 (10.0.14393) or later: +Due to the new dependency on NetFx 4.7.2, SSMS 18.0 does not install on Windows 8, older versions of Windows 10, and Windows Server 2016. SSMS setup will block on those operating systems. Windows 8.1 is still supported. + + +### Note +SSMS 17.X is based on the Visual Studio 2015 Isolated shell, which was released before Windows Server 2016. +Microsoft takes app compatibility very seriously and ensures that already-shipped applications continue to run on the latest Windows releases. +Because of this, we do not anticipate that SSMS with all latest updates applied) will encounter issues when running on Windows Server 2016. +Customers are advised to contact support, should they encounter any issues with SSMS on Windows Server 2016. +Support will then work with customers to determine if the issue is with SSMS or Visual Studio or with Windows compatibility, and route the issue appropriately. + +SSMS 18.x is based on the new Visual Studio 2017 Isolated Shell: The new shell unlocks all the accessibility fixes that went in to both SSMS and Visual Studio. + + +## Available Languages +**SQL Server Management Studio 18.0 (preview 6)**: + [Chinese (People's Republic of China)](https://go.microsoft.com/fwlink/?linkid=2052501&clcid=0x804) | + [Chinese (Taiwan)](https://go.microsoft.com/fwlink/?linkid=2052501&clcid=0x404) | + [English (United States)](https://go.microsoft.com/fwlink/?linkid=2052501&clcid=0x409) | + [French](https://go.microsoft.com/fwlink/?linkid=2052501&clcid=0x40c) | + [German](https://go.microsoft.com/fwlink/?linkid=2052501&clcid=0x407) | + [Italian](https://go.microsoft.com/fwlink/?linkid=2052501&clcid=0x410) | + [Japanese](https://go.microsoft.com/fwlink/?linkid=2052501&clcid=0x411) | + [Korean](https://go.microsoft.com/fwlink/?linkid=2052501&clcid=0x412) | + [Portuguese (Brazil)](https://go.microsoft.com/fwlink/?linkid=2052501&clcid=0x416) | + [Russian](https://go.microsoft.com/fwlink/?linkid=2052501&clcid=0x419) | + [Spanish](https://go.microsoft.com/fwlink/?linkid=2052501&clcid=0x40a) + +**SQL Server Management Studio 17.9.1** for another languages: + [Chinese (People's Republic of China)](https://go.microsoft.com/fwlink/?linkid=2014306&clcid=0x804) | + [Chinese (Taiwan)](https://go.microsoft.com/fwlink/?linkid=2014306&clcid=0x404) | + [English (United States)](https://go.microsoft.com/fwlink/?linkid=2014306&clcid=0x409) + [French](https://go.microsoft.com/fwlink/?linkid=2014306&clcid=0x40c) | + [German](https://go.microsoft.com/fwlink/?linkid=2014306&clcid=0x407) | + [Italian](https://go.microsoft.com/fwlink/?linkid=2014306&clcid=0x410) | + [Japanese](https://go.microsoft.com/fwlink/?linkid=2014306&clcid=0x411) | + [Korean](https://go.microsoft.com/fwlink/?linkid=2014306&clcid=0x412) | + [Portuguese (Brazil)](https://go.microsoft.com/fwlink/?linkid=2014306&clcid=0x416) | + [Russian](https://go.microsoft.com/fwlink/?linkid=2014306&clcid=0x419) | + [Spanish](https://go.microsoft.com/fwlink/?linkid=2014306&clcid=0x40a) + +**SQL Server Management Studio 17.9.1 Upgrade Package** (upgrades 17.x to 17.9.1): + [Chinese (People's Republic of China)](https://go.microsoft.com/fwlink/?linkid=2043154&clcid=0x804) | + [Chinese (Taiwan)](https://go.microsoft.com/fwlink/?linkid=2043154&clcid=0x404) | + [English (United States)](https://go.microsoft.com/fwlink/?linkid=2043154&clcid=0x409) | + [French](https://go.microsoft.com/fwlink/?linkid=2043154&clcid=0x40c) | + [German](https://go.microsoft.com/fwlink/?linkid=2043154&clcid=0x407) | + [Italian](https://go.microsoft.com/fwlink/?linkid=2043154&clcid=0x410) | + [Japanese](https://go.microsoft.com/fwlink/?linkid=2043154&clcid=0x411) | + [Korean](https://go.microsoft.com/fwlink/?linkid=2043154&clcid=0x412) | + [Portuguese (Brazil)](https://go.microsoft.com/fwlink/?linkid=2043154&clcid=0x416) | + [Russian](https://go.microsoft.com/fwlink/?linkid=2043154&clcid=0x419) | + [Spanish](https://go.microsoft.com/fwlink/?linkid=2043154&clcid=0x40a) + + +## SQL Server Management Studio Download Links and Release Info + - **GA** - General Availability + - **PP** - Public Preview + - Size in Megabytes for English version + +| Version/Download Link | Build | Release Date | Size, Mb | +|----------------------------------------|---------------|--------------|---------:| +| [18.0 Preview 6 Release] **Latest PP** | 15.0.18075.0 | 2018-12-18 | 457 | +| [18.0 Preview 5 Release] | 15.0.18068.0 | 2018-11-15 | 457 | +| [18.0 Preview 4 Release] | 15.0.18040.0 | 2018-09-24 | 456 | +| [17.9.1 Release] **Latest GA** | 14.0.17289.0 | 2018-11-21 | 807 | +| [17.9 Release] | 14.0.17285.0 | 2018-09-04 | 807 | +| [17.8.1 Release] | 14.0.17277.0 | 2018-06-26 | 806 | +| [17.8 Release] **Deprecated** | 14.0.17276.0 | 2018-06-21 | 806 | +| [17.7 Release] | 14.0.17254.0 | 2018-05-09 | 803 | +| [17.6 Release] | 14.0.17230.0 | 2018-03-20 | 802 | +| [17.5 Release] | 14.0.17224.0 | 2018-02-15 | 802 | +| [17.4 Release] | 14.0.17213.0 | 2017-12-07 | 802 | +| [17.3 Release] | 14.0.17199.0 | 2017-10-09 | 801 | +| [17.2 Release] | 14.0.17177.0 | 2017-08-07 | 819 | +| [17.1 Release] | 14.0.17119.0 | 2017-05-24 | 784 | +| [17.0 Release] | 14.0.17099.0 | 2017-04-25 | 729 | +| [17.0 RC3 Release] | 14.0.17028.0 | 2017-03-09 | 677 | +| [17.0 RC2 Release] | 14.0.16150.0 | 2017-02-01 | 682 | +| [17.0 RC1 Release] | 14.0.16000.64 | 2016-11-16 | 687 | +| [16.5.3 Release] | 13.0.16106.4 | 2017-01-26 | 898 | +| 16.5.2 Release **Deprecated** | 13.0.16105.4 | 2017-01-18 | 898 | +| [16.5.1 Release] | 13.0.16100.1 | 2016-12-05 | 894 | +| [16.5 Release] | 13.0.16000.28 | 2016-10-26 | 894 | +| [16.4.1 Release] | 13.0.15900.1 | 2016-09-23 | 894 | +| 16.4 Release **Deprecated** | 13.0.15800.18 | 2016-09-20 | | +| [16.3 Release] | 13.0.15700.28 | 2016-08-15 | 806 | +| [July 2016 Hotfix Update] | 13.0.15600.2 | 2016-07-13 | 825 | +| July 2016 Release **Deprecated** | 13.0.15500.91 | 2016-07-01 | | +| [June 2016 Release] | 13.0.15000.23 | 2016-06-01 | 825 | +| [SQL Server 2014 SP1] | 12.0.4100.1 | 2015-05-14 | 815 | +| [SQL Server 2012 SP3] | 11.0.6020.0 | 2015-11-21 | 964 | +| [SQL Server 2008 R2] | 10.50.4000 | 2012-07-02 | 161 | + +[18.0 Preview 6 Release]:https://go.microsoft.com/fwlink/?linkid=2052501 +[18.0 Preview 5 Release]:https://go.microsoft.com/fwlink/?linkid=2041155 +[18.0 Preview 4 Release]:https://go.microsoft.com/fwlink/?linkid=2014662 +[17.9.1 Release]:https://go.microsoft.com/fwlink/?linkid=2043154 +[17.9 Release]:https://go.microsoft.com/fwlink/?linkid=2014306 +[17.8.1 Release]:https://go.microsoft.com/fwlink/?linkid=875802 +[17.8 Release]:https://go.microsoft.com/fwlink/?linkid=875673 +[17.7 Release]:https://go.microsoft.com/fwlink/?linkid=873126 +[17.6 Release]:https://go.microsoft.com/fwlink/?linkid=870039 +[17.5 Release]:https://go.microsoft.com/fwlink/?linkid=867670 +[17.4 Release]:https://go.microsoft.com/fwlink/?linkid=864329 +[17.3 Release]:https://go.microsoft.com/fwlink/?linkid=858904 +[17.2 Release]:https://go.microsoft.com/fwlink/?linkid=854085 +[17.1 Release]:https://go.microsoft.com/fwlink/?linkid=849819 +[17.0 Release]:https://go.microsoft.com/fwlink/?linkid=847722 +[17.0 RC3 Release]:https://go.microsoft.com/fwlink/?linkid=844503 +[17.0 RC2 Release]:https://go.microsoft.com/fwlink/?linkid=840957 +[17.0 RC1 Release]:https://go.microsoft.com/fwlink/?LinkID=835608 +[16.5.3 Release]:https://go.microsoft.com/fwlink/?LinkID=840946 +[16.5.1 Release]:https://go.microsoft.com/fwlink/?linkid=837453 +[16.5 Release]:http://go.microsoft.com/fwlink/?linkid=832812 +[16.4.1 Release]:http://go.microsoft.com/fwlink/?LinkID=828615 +[16.3 Release]:http://go.microsoft.com/fwlink/?LinkID=824938 +[July 2016 Hotfix Update]:http://go.microsoft.com/fwlink/?LinkID=822301 +[June 2016 Release]:http://go.microsoft.com/fwlink/?LinkID=799832 +[SQL Server 2014 SP1]:http://download.microsoft.com/download/1/5/6/156992E6-F7C7-4E55-833D-249BD2348138/ENU/x86/SQLManagementStudio_x86_ENU.exe +[SQL Server 2012 SP3]:http://download.microsoft.com/download/F/6/7/F673709C-D371-4A64-8BF9-C1DD73F60990/ENU/x86/SQLManagementStudio_x86_ENU.exe +[SQL Server 2008 R2]:https://www.microsoft.com/en-us/download/details.aspx?id=30438 + + +## SQL Server 2014 RTM Management Studio download links - [SQL Management Studio x64](http://download.microsoft.com/download/E/A/E/EAE6F7FC-767A-4038-A954-49B8B05D04EB/MgmtStudio%2064BIT/SQLManagementStudio_x64_ENU.exe) - [SQL Management Studio x86](http://download.microsoft.com/download/E/A/E/EAE6F7FC-767A-4038-A954-49B8B05D04EB/MgmtStudio%2032BIT/SQLManagementStudio_x86_ENU.exe) -## SQL Server 2012 Management Studio download links +## SQL Server 2012 SP1 Management Studio download links - [SQL Management Studio x64](http://download.microsoft.com/download/8/D/D/8DD7BDBA-CEF7-4D8E-8C16-D9F69527F909/ENU/x64/SQLManagementStudio_x64_ENU.exe) - [SQL Management Studio x86](http://download.microsoft.com/download/8/D/D/8DD7BDBA-CEF7-4D8E-8C16-D9F69527F909/ENU/x86/SQLManagementStudio_x86_ENU.exe) -## SQL Server 2008 Management Studio download links +## SQL Server 2008 R2 Management Studio download links - [SQL Management Studio x64](http://download.microsoft.com/download/0/4/B/04BE03CD-EAF3-4797-9D8D-2E08E316C998/SQLManagementStudio_x64_ENU.exe) - [SQL Management Studio x86](http://download.microsoft.com/download/0/4/B/04BE03CD-EAF3-4797-9D8D-2E08E316C998/SQLManagementStudio_x86_ENU.exe) diff --git a/SSMS/SSMS_Addins.md b/SSMS/SSMS_Addins.md index df271cea..b6a10988 100644 --- a/SSMS/SSMS_Addins.md +++ b/SSMS/SSMS_Addins.md @@ -1,58 +1,102 @@ # SQL Server Management Studio add-ins -Complete list of useful and must have add-ins for SQL Server Management Studio - - -| Name | Download page | Release Date | Support Version | Developer | Free version | Price | -|-------------------------------------------------------|----------------------------|--------------|-----------------|----------------------|--------------|---------| -| [SSMSBoost](#ssmsboost) | [SSMSBoost] | 2015-12-21 | 2008/2012/2014 | Solutions Crew GmbH | Yes | $150 | -| [SQL Code Guard](#sql-code-guard) | [SQL Code Guard] | 2015-05-04 | 2008/2012/2014 | Oleksii Kovalov | Yes | No | -| [SQL Search](#sql-search) | [SQL Search] | 2015-11-05 | 2008/2012/2014 | Red Gate | Yes | No | -| [SQL Scripts Manager](#sql-scripts-manager) | [SQL Scripts Manager] | 2015-05-31 | 2008/2012/2014 | Red Gate | Yes | No | -| [Red Gate SQL Test](#red-gate-sql-test) | [Red Gate SQL Test] | 2015-11-17 | 2008/2012/2014 | Red Gate | No | $369 | -| [Supratimas](#supratimas) | [Supratimas] | 2015-01-27 | 2008/2012/2014 | TTRider LLC | Yes | $34.99 | -| [SSMS Tools Pack](#ssms-tools-pack) | [SSMS Tools Pack] | 2015-10-07 | 2008/2012/2014 | Mladen Prajdić | No | €30 | -| [SQL Pretty Printer](#sql-pretty-printer) | [SQL Pretty Printer] | 2015-11-05 | 2008/2012/2014 | Gudu Software | No | $50 | -| [SQL Sentry Plan Explorer](#sql-sentry-plan-explorer) | [SQL Sentry Plan Explorer] | 2015-09-01 | 2008/2012/2014 | SQL Sentry | Yes | $295.00 | -| [TSQL Code Smells Finder](#tsql-code-smells-finder) | [TSQL Code Smells Finder] | 2013-02-15 | 2008/2012/2014 | Dave ballantyne | Yes | No | -| [SQLTreeo](#sqltreeo) | [SQLTreeo] | 2014-05-18 | 2008/2012/2014 | Jakub Dvorak | No | €50 | -| [ApexSQL Complete](#apexsql-complete) | [ApexSQL Complete] | 2016-04-01 | 2008/2012/2014 | ApexSQL tools | Yes | No | -| [ApexSQL Refactor](#apexsql-refactor) | [ApexSQL Refactor] | 2016-02-11 | 2008/2012/2014 | ApexSQL tools | Yes | No | -| [ApexSQL Search](#apexsql-search) | [ApexSQL Search] | 2015-09-04 | 2008/2012/2014 | ApexSQL tools | Yes | No | -| [ApexSQL Source Control](#apexsql-source-control) | [ApexSQL Source Control] | 2015-04-27 | 2008/2012/2014 | ApexSQL tools | No | $299 | -| [Spotlight Developer](#spotlight-developer) | [Spotlight Developer] | 2016-02-04 | 2008/2012/2014 | Spotlight Essentials | Yes | No | -| [dbForge Source Control](#dbforge-source-control) | [dbForge Source Control] | 2015-12-22 | 2008/2012/2014 | Devart | No | $249.95 | -| [dbForge Unit Test](#dbforge-unit-test) | [dbForge Unit Test] | 2015-12-04 | 2008/2012/2014 | Devart | No | $199.95 | -| [dbForge Data Pump](#dbforge-data-pump) | [dbForge Data Pump] | 2015-12-04 | 2008/2012/2014 | Devart | No | $149.95 | -| [dbForge Index Manager](#dbforge-index-manager) | [dbForge Index Manager] | 2015-11-30 | 2008/2012/2014 | Devart | No | $99.95 | -| [dbForge Object Search](#dbforge-object-search) | [dbForge Object Search] | 2015-11-30 | 2008/2012/2014 | Devart | Yes | No | -| [dbForge SQL Complete](#dbforge-sql-complete) | [dbForge SQL Complete] | 2015-09-16 | 2008/2012/2014 | Devart | No | $119.95 | -| [SoftTree SQL Assistant](#softtree-sql-assistant) | [SoftTree SQL Assistant] | 2016-03-18 | 2008/2012/2014 | SoftTree | No | $178.80 | - - -## SSMSBoost +Complete list of useful and must have add-ins for SQL Server Management Studio - **36** SSMS add-ins + +| Name | Download page | Release Date | Support SSMS Version | Developer | Free version | Price | +|-------------------------------------------------------|-------------------------------|--------------|:---------------------|----------------------|--------------|------:| +| [SSMSBoost](#ssmsboost) | [SSMSBoost] | 2019-01-09 | 2008-2018 | Solutions Crew GmbH | Yes | $150 | +| [SqlSmash](#sqlsmash) | [SqlSmash] | 2017-06-10 | 2008-2017 | Smashing Jedis LLC | Yes | $99 | +| [SQL Code Guard](#sql-code-guard) | [Red Gate SQL Code Guard] | 2017-07-03 | 2016 | Red Gate | Yes | No | +| [SQL Search](#sql-search) | [SQL Search] | 2017-02-27 | 2008-2017 | Red Gate | Yes | No | +| [Red Gate SQL Test](#red-gate-sql-test) | [Red Gate SQL Test] | 2017-03-21 | 2008-2017 | Red Gate | No | $369 | +| [Red Gate SQL Source Control](#red-gate-control) | [Red Gate SQL Source Control] | 2017-06-30 | 2012-2017 | Red Gate | No | $495 | +| [Supratimas](#supratimas) | [Supratimas] | 2017-07-11 | 2008-2017 | TTRider LLC | Yes | No | +| [SSMS Tools Pack](#ssms-tools-pack) | [SSMS Tools Pack] | 2016-11-28 | 2012-2017 | Mladen Prajdić | No | €30 | +| [SQL Pretty Printer](#sql-pretty-printer) | [SQL Pretty Printer] | 2015-11-05 | 2008-2014 | Gudu Software | No | $50 | +| [SQL Sentry Plan Explorer](#sql-sentry-plan-explorer) | [SQL Sentry Plan Explorer] | 2017-05-25 | 2008-2017 | SQL Sentry | Yes | No | +| [TSQL Code Smells Finder](#tsql-code-smells-finder) | [TSQL Code Smells Finder] | 2013-02-15 | 2008-2014 | Dave ballantyne | Yes | No | +| [SQLTreeo](#sqltreeo) | [SQLTreeo] | 2017-06-06 | 2012-2017 | SQLTreeo | No | €50 | +| [ApexSQL Complete](#apexsql-complete) | [ApexSQL Complete] | 2017-10-26 | 2012-2017 | ApexSQL tools | Yes | No | +| [ApexSQL Refactor](#apexsql-refactor) | [ApexSQL Refactor] | 2017-07-13 | 2008-2017 | ApexSQL tools | Yes | No | +| [ApexSQL Search](#apexsql-search) | [ApexSQL Search] | 2017-06-19 | 2008-2017 | ApexSQL tools | Yes | No | +| [ApexSQL Source Control](#apexsql-source-control) | [ApexSQL Source Control] | 2017-10-12 | 2008-2017 | ApexSQL tools | No | $299 | +| [ApexSQL Unit Test](#apexsql-unit-test) | [ApexSQL Unit Test] | 2017-08-16 | 2008-2017 | ApexSQL tools | Yes | $499 | +| [Spotlight Developer](#spotlight-developer) | [Spotlight Developer] | 2016-02-04 | 2008-2014 | Spotlight Essentials | Yes | No | +| [dbForge Source Control](#dbforge-source-control) | [dbForge Source Control] | 2018-12-21 | 2005-2018 | Devart | No | $249 | +| [dbForge Unit Test](#dbforge-unit-test) | [dbForge Unit Test] | 2018-12-21 | 2005-2018 | Devart | No | $199 | +| [dbForge Data Pump](#dbforge-data-pump) | [dbForge Data Pump] | 2018-12-21 | 2008-2018 | Devart | No | $149 | +| [dbForge Index Manager](#dbforge-index-manager) | [dbForge Index Manager] | 2018-12-21 | 2008-2018 | Devart | No | $99 | +| [dbForge Search](#dbforge-search) | [dbForge Search] | 2018-12-21 | 2008-2018 | Devart | Yes | No | +| [dbForge Monitor](#dbforge-monitor) | [dbForge Monitor] | 2018-12-21 | 2008-2018 | Devart | Yes | No | +| [dbForge SQL Complete](#dbforge-sql-complete) | [dbForge SQL Complete] | 2018-12-21 | 2000-2018 | Devart | Yes | $149 | +| [SoftTree SQL Assistant](#softtree-sql-assistant) | [SoftTree SQL Assistant] | 2016-03-18 | 2008-2014 | SoftTree | No | $179 | +| [SQL Enlight For SSMS](#sql-enlight-for-ssms) | [SQL Enlight For SSMS] | 2016-04-25 | 2008-2014 | UbitSoft | No | $195 | +| [SQL Hunting Dog](#sql-hunting-dog) | [SQL Hunting Dog] | 2016-03-03 | 2008-2014 | Alex Maslyukov | Yes | No | +| [Poor Mans T-SQL Formatter](#poor-mans) | [Poor Mans T-SQL Formatter] | 2013-10-23 | 2008-2012 | Tao Klerks | Yes | No | +| [Tabs Studio](#tabs-studio) | [Tabs Studio] | 2017-08-24 | 2012-2017 | Vlasov Studio | No | $49 | +| [Workload Addin](#workload-addin) | [Workload Addin] | 2017-02-07 | 2008-2012 | Tomáš Bauer | Yes | No | +| [SQL Server Diagnostics](#sql-server-diagnostics) | [SQL Server Diagnostics] | 2017-06-22 | 2016-2017 | Microsoft | Yes | No | +| [VersionSQL](#versionsql) | [VersionSQL] | 2017-02-16 | 2012-2017 | VersionSQL | Yes | $149 | +| [Spotlight Tuning Pack](#spotlight-tuning-pack) | [Spotlight Tuning Pack] | 2018-06-01 | 2012-2017 | Quest Software Inc | Yes | $180 | +| [Michel Max - SSMS Tools](#michel-max) | [Michel Max - SSMS Tools] | 2018-11-16 | 2012-2018 | Michel Max | Yes | No | +| [SSMS Schema Folders](#ssms-schema-folders) | [SSMS Schema Folders] | 2018-10-06 | 2012-2018 | Nicholas Ross | Yes | No | + + + +## SSMSBoost Download page: [SSMSBoost]
-Release date: 2015-12-21
-Support Version: 2008/2012/2014
-Free version: Yes +Release date: 2019-01-09
+Support Version: 2008-2018
+Developer: Solutions Crew GmbH
+Free version: Yes
+Price: $150 -SSMSBoost add-in adds missing features and improves your productivity when working with Microsoft SQL Server in SQL Server Management Studio.
-The main goal of the project is to speed-up daily tasks of SQL DBA and SQL developers and to help you avoid destructive DML executions in production environments. - -You will realize, that plug-in will save you hundreds of mouse-clicks and key strokes every day ! - -Licensing options: after 30 day trial period register and get fully-functional free community license or buy the professional version.
-Currently both versions have the same set of features. +SSMSBoost add-in adds missing features and improves your productivity when working with Microsoft SQL Server in SQL Server Management Studio. +The main goal of the project is to speed-up daily tasks of SQL DBA and SQL developers and to help you avoid destructive DML executions in production environments. -## SQL Code Guard -Download link: [SQL Code Guard]
-Release date: 2015-05-04
-Support Version: 2008/2012/2014
-Free version: Yes +Licensing options: after 30 day trial period register and get free community license or buy the professional version. + +[Features list / SSMSBoost version comparison](http://www.ssmsboost.com/VersionCompare) + + + +## SqlSmash +Download page: [SqlSmash]
+Release date: 2017-06-10
+Support Version: 2008-2017
+Developer: Smashing Jedis LLC
+Free version: Yes
+Price: $99 + +Write maintainable SQL scripts, Understand code better and Navigate faster with SqlSmash, a productivity plugin for SQL Server Management Studio. + + - Search Database Objects + - Format Sql + - Execute Current Query + - Insert Statement Generation + - Go To Object + - Increase/Decrease Text Selection + - Data Protection + - Find All References + - Recent Tabs and Queries + - See Related Data + - Quick Info + - Summarize Script + - Go To Definition + + + +## SQL Code Guard +Download link: [Red Gate SQL Code Guard]
+Release date: 2017-02-17
+Support Version: 2016
+Developer: Red Gate
+Free version: Yes
+Price: No SQL Code Guard is a free solution for SQL Server that provides fast and comprehensive static analysis for T-Sql code, shows code complexity and objects dependencies. - - Integration with SSMS 2008/2012/2014 + - Integration with SSMS 2016 - Integration with Visual Studio 2012/2013 - Checkin Policy for TFS (how to install & use) - Support of msbuild (how to use msbuild) @@ -60,11 +104,14 @@ SQL Code Guard is a free solution for SQL Server that provides fast and comprehe - API for custom tool development (demo projects can be found in SQL Code Guard folder) -## SQL Search + +## SQL Search Download page: [SQL Search]
-Release date: 2015-11-05
-Support Version: 2008/2012/2014
-Free version: Yes +Release date: 2017-02-27
+Support Version: 2008-2017
+Developer: Red Gate
+Free version: Yes
+Price: No SQL Search is a free add-in for SQL Server Management Studio that lets you quickly search for SQL across your databases. @@ -75,103 +122,142 @@ SQL Search is a free add-in for SQL Server Management Studio that lets you quick - Search with booleans and wildcards -## SQL Scripts Manager -Download page: [SQL Scripts Manager]
-Release date: 2015-05-31
-Support Version: 2008/2012/2014
-Free version: Yes + +## Red Gate SQL Test +Download page: [Red Gate SQL Test]
+Release date: 2017-03-21
+Support Version: 2008-2017
+Developer: Red Gate
+Free version: No
+Price: $369 -Powerful and reliable scripts written by SQL Server experts +Write unit tests (using the open-source [tSQLt framework](https://github.com/tSQLt-org/tSQLt)) for SQL Server databases in SQL Server Management Studio -## Red Gate SQL Test -Download page: [Red Gate SQL Test]
-Release date: 2015-11-17
-Support Version: 2008/2012/2014
-Free version: No -Price: $369 + +## Red Gate SQL Source Control +Download page: [Red Gate SQL Source Control]
+Release date: 2017-06-30
+Support Version: 2012-2017
+Developer: Red Gate
+Free version: No
+Price: $495 -Write unit tests (using the open-source tSQLt framework) for SQL Server databases in SQL Server Management Studio +Connect your databases to your source control system + - Version control your schemas and reference data + - Version control your schemas and reference data + - Handles referential integrity for you + - Push and pull Git repos (Synchronize your local and remote Git repositories inside Management Studio) + - Roll back any changes you don't want + - Lock objects you're working on + - Work on a central database or your own local copy + - Exclude objects with filters + - Deploy your changes without data loss (Avoid losing data during complex deployments with migration scripts) -## Supratimas + +## Supratimas Download page: [Supratimas]
-Release date: 2015-01-27
-Support Version: 2008/2012/2014
-Free version: Yes +Release date: 2017-07-11
+Support Version: 2008-2017
+Developer: TTRider LLC
+Free version: Yes
+Price: No SQL Server query plan execution visualizer -## SSMS Tools Pack + +## SSMS Tools Pack Download page: [SSMS Tools Pack]
-Release date: 2015-10-07
-Support Version: 2008/2012/2014
-Free version: No - -- Keeps your query or window history safe in local files or database -- Run script at cursor location and an Accidental data destruction protector -- Keep your favorite statements accessible with a shortcut of your choice -- Format SQL -- Color the query windows based on the server/database name or a regex -- Add custom replacement texts to your scripts in four different features -- Modifies New Query windows with a template of your choice -- Run custom scripts from a chosen node in Object Explorer - - -## SQL Pretty Printer +Release date: 2016-11-28
+Support Version: 2012-2017
+Developer: Mladen Prajdić
+Free version: No
+Price: €30 + + - Keeps your query or window history safe in local files or database + - Run script at cursor location and an Accidental data destruction protector + - Keep your favorite statements accessible with a shortcut of your choice + - Format SQL + - Color the query windows based on the server/database name or a regex + - Add custom replacement texts to your scripts in four different features + - Modifies New Query windows with a template of your choice + - Run custom scripts from a chosen node in Object Explorer + + + +## SQL Pretty Printer Download page: [SQL Pretty Printer]
Release date: 2015-11-05
-Support Version: 2008/2012/2014
-Free version: No +Support Version: 2008-2014
+Developer: Gudu Software
+Free version: No
+Price: No -- improve SQL readability -- use a standard style within your organization -- use automatic formatting eliminates any disagreements -- embed well formatted and syntax colored SQL into your documents -- add SQL format feature within 5 minutes -- quickly convert between SQL and C#, Java, etc. + - improve SQL readability + - use a standard style within your organization + - use automatic formatting eliminates any disagreements + - embed well formatted and syntax colored SQL into your documents + - add SQL format feature within 5 minutes + - quickly convert between SQL and C#, Java, etc. -## SQL Sentry Plan Explorer + +## SQL Sentry Plan Explorer Download page: [SQL Sentry Plan Explorer]
-Release date: 2015-09-01
-Support Version: 2008/2012/2014
-Free version: Yes +Release date: 2017-05-25
+Support Version: 2008-2017
+Developer: SQL Sentry
+Free version: Yes
+Price: No With both a free and PRO version, Plan Explorer builds upon the graphical plan view in SSMS to make query plan optimization more efficient. It is a lightweight standalone app that contains many of the plan analysis features introduced in SQL Sentry v6, and does not require a collector service or database. -## TSQL Code Smells Finder + +## TSQL Code Smells Finder Download page: [TSQL Code Smells Finder]
Release date: 2013-02-15
-Support Version: 2008/2012/2014
-Free version: Yes +Support Version: 2008-2014
+Developer: Dave ballantyne
+Free version: Yes
+Price: No TSQL Code can smell, it may work just fine but there can be hidden dangers held within. This is a proof of concept work which will analyze TSQL scripts in an attempt to weed out some of these dangers. -## SQLTreeo + +## SQLTreeo Download page: [SQLTreeo]
-Release date: 2014-05-18
-Support Version: 2008/2012/2014
-Free version: No - -SQL Treeo enables users to create custom folders for databases, stored procedures, views, functions and tables. -You can organize your SQL objects in logical modules which are aligned with your project structure. - - -## ApexSQL Complete +Release date: 2017-06-06
+Support Version: 2008-2017
+Developer: Jakub Dvorak
+Free version: No
+Price: €50 + + - Create custom folders for databases, stored procedures, tables, views and user defined functions + - Drag&Drop objects in folders + - Management interface for bulk folder operations + - Ctrl+click command to alter SQL object + - Seamless sharing with other team members + - Bulk folders creation + - Dynamic folders + + + +## ApexSQL Complete Download page: [ApexSQL Complete]
-Release date: 2015-09-04
-Support Version: 2008/2012/2014/2016
-Free version: Yes +Release date: 2017-10-26
+Support Version: 2008-2017
+Developer: ApexSQL tools
+Free version: Yes
+Price: No -With ApexSQL Complete you can: - Automatically complete SQL statements - - Review an object's script and description + - Review an objects script and description - Improve productivity with snippets - Identify the structure of complex SQL queries - Keep track of all your tabs @@ -180,11 +266,14 @@ With ApexSQL Complete you can: - Check queries in test mode -## ApexSQL Refactor + +## ApexSQL Refactor Download page: [ApexSQL Refactor]
-Release date: 2015-12-11
-Support Version: 2008/2012/2014/2016
-Free version: Yes +Release date: 2017-05-08
+Support Version: 2008-2017
+Developer: ApexSQL tools
+Free version: Yes
+Price: No With ApexSQL Refactor you can: - Format SQL with over 160 options @@ -197,11 +286,14 @@ With ApexSQL Refactor you can: - Locate & highlight unused variables -## ApexSQL Search + +## ApexSQL Search Download page: [ApexSQL Search]
-Release date: 2015-09-04
-Support Version: 2008/2012/2014
-Free version: Yes +Release date: 2017-06-19
+Support Version: 2008-2017
+Developer: ApexSQL tools
+Free version: Yes
+Price: No With ApexSQL Search you can: - Search for SQL objects @@ -212,11 +304,14 @@ With ApexSQL Search you can: - Rename SQL objects safely -## ApexSQL Source Control + +## ApexSQL Source Control Download page: [ApexSQL Source Control]
-Release date: 2015-04-27
-Support Version: 2008/2012/2014
-Free version: No +Release date: 2017-10-12
+Support Version: 2008-2017
+Developer: ApexSQL tools
+Free version: No
+Price: $299 - Integrate SQL source control directly into SSMS - Use dedicated or shared development models @@ -228,11 +323,33 @@ Free version: No - Create and apply label from source control -## Spotlight Developer + +## ApexSQL Unit Test +Download page: [ApexSQL Unit Test]
+Release date: 2017-08-22
+Support Version: 2008-2017
+Developer: ApexSQL tools
+Free version: No
+Price: $499 + + - Integrate SQL unit testing directly into SSMS + - Install and manage [tSQLt](http://tsqlt.org/) from multiple sources + - Create and organize test classes + - Automate test execution using the CLI + - Create and organize unit tests + - Write tests using T-SQL + - Run tests with a single click + - Manage all tests with a single form + + + +## Spotlight Developer Download page: [Spotlight Developer]
Release date: 2016-02-14
-Support Version: 2008/2012/2014
-Free version: Yes +Support Version: 2008-2014
+Developer: Spotlight Essentials
+Free version: Yes
+Price: No Users of SQL Server Management Studio can monitor all their connections via a heatmap, alarms list and realtime diagnostics for FREE. Once installed and configured, users can monitor their connections immediately. @@ -243,42 +360,54 @@ This makes it possible for you to take advantage of data collections for all you You also get a FREE System health Check, Performance Health Analysis and comprehensive information about your most expensive queries. -## dbForge Source Control + +## dbForge Source Control Download page: [dbForge Source Control]
-Release date: 2015-12-22
-Support Version: 2008/2012/2014
-Free version: No +Release date: 2018-12-21
+Support Version: 2005-2018
+Developer: Devart
+Free version: No
+Price: $249 dbForge Source Control for SQL Server is a powerful SSMS add-in for managing SQL Server database changes in source control. The tool can link your databases to all popular source control systems, and delivers smooth and clear workflow in a familiar interface. -## dbForge Unit Test + +## dbForge Unit Test Download page: [dbForge Unit Test]
-Release date: 2015-12-04
-Support Version: 2008/2012/2014
-Free version: No +Release date: 2018-12-21
+Support Version: 2005-2018
+Developer: Devart
+Free version: No
+Price: $199 An intuitive and convenient GUI for implementing automated unit testing in SQL Server Management Studio. The tool is based on the open-source tSQLt framework, so SQL developers can now benefit from writing unit tests in regular T-SQL. dbForge Unit Test for SQL Server functionality allows you to develop stable and reliable code that can be properly regression tested at the unit level. -## dbForge Data Pump + +## dbForge Data Pump Download page: [dbForge Data Pump]
-Release date: 2015-12-04
-Support Version: 2008/2012/2014
-Free version: No +Release date: 2018-12-21
+Support Version: 2008-2018
+Developer: Devart
+Free version: No
+Price: $149 -dbForge Data Pump for SQL Server is an SSMS add-in for filling SQL databases with external source data and migrating data between systems. -The tool supports 10+ widely used data formats and includes a number of advanced options and templates for recurring scenarios. +dbForge Data Pump is an SSMS add-in for filling SQL databases with external source data and migrating data between systems. +The tool supports import and export from 10+ widely used data formats (Text, MS Excel, XML, CSV, JSON etc.) and includes a number of advanced options and templates for recurring scenarios. -## dbForge Index Manager + +## dbForge Index Manager Download page: [dbForge Index Manager]
-Release date: 2015-11-30
-Support Version: 2008/2012/2014
-Free version: No +Release date: 2018-12-21
+Support Version: 2008-2018
+Developer: Devart
+Free version: No
+Price: $99 dbForge Index Manager for SQL Server is a handy SSMS add-in for analyzing the status of SQL indexes and fixing issues with index fragmentation. The tool allows you to quickly collect index fragmentation statistics and detect databases that require maintenance. @@ -286,42 +415,234 @@ You can instantly rebuild and reorganize SQL indexes in visual mode or generate dbForge Index Manager for SQL Server will significantly boost SQL Server performance without much effort. -## dbForge Object Search -Download page: [dbForge Object Search]
-Release date: 2015-11-30
-Support Version: 2008/2012/2014
-Free version: Yes + +## dbForge Search +Download page: [dbForge Search]
+Release date: 2018-12-21
+Support Version: 2008-2018
+Developer: Devart
+Free version: Yes
+Price: No dbForge Object Search for SQL Server is a FREE add-in for SQL Server Management Studio that allows you to search SQL objects and data in your databases. It can be very difficult to find a required table or to remember names of your stored routines, when a database contains lots of objects. With dbForge Object Search for SQL Server you no longer need to look through the entire SSMS Object Explorer to find a required object. -## dbForge SQL Complete + +## dbForge Monitor +Download page: [dbForge Monitor]
+Release date: 2018-12-21
+Support Version: 2008-2018
+Developer: Devart
+Free version: Yes
+Price: No + + - The Overview tab of the tool allows you to see what actually happens at your SQL Server from various angles. + - With the IO data tab of the tool, you can easily view statistics of the read and write operations for each database file. + - The Wait Stats tab, you can identify the resources that slow down the server. It shows the list of waiting tasks encountered by execution threads because resources required for the request fulfillment were busy or not available. + - dbForge Monitor includes an SQL query performance analyzer that allows you to detect and optimize the most expensive queries that overload the system. Apart from the list of the poorly performing queries, the tool shows the query text and query profiling data that can help you to rewrite a query in the most productive way. + + + +## dbForge SQL Complete Download page: [dbForge SQL Complete]
-Release date: 2015-09-16
-Support Version: 2008/2012/2014
-Free version: No +Release date: 2018-12-21
+Support Version: 2000-2018
+Developer: Devart
+Free version: Yes
+Price: $149 dbForge SQL Complete provides a wide range of code completion features that relieve users from remembering long and complex object names, column names, SQL operators, etc., but instead allows concentrating on writing high-quality SQL code with proper formatting that is easy to understand and interpret. -## SoftTree SQL Assistant + +## SoftTree SQL Assistant Download page: [SoftTree SQL Assistant]
Release date: 2016-03-18
-Support Version: 2008/2012/2014
-Free version: No/$178.80 +Support Version: 2008-2014
+Developer: SoftTree
+Free version: No
+Price: $179 SQL Assistant equips database developers and DBAs with the productivity tools they need to speed up the database development process, improve code quality and accuracy. + +## SQL Enlight for SSMS +Download page: [SQL Enlight for SSMS]
+Release date: 2016-04-25
+Support Version: 2008-2014
+Developer: UbitSoft
+Free version: No
+Price: $195 + + - Advanced static analysis + - T-SQL code formatting + - Statements history + - Validate T-SQL code for syntax errors + - Script Summary + - Refactoring + - Continuous integration support + + + +## SQL Hunting Dog +Download page: [SQL Hunting Dog]
+Release date: 2016-03-03
+Support Version: 2008-2014
+Developer: Alex Maslyukov
+Free version: Yes
+Price: No + + - Quickly find tables, stored procedure, functions and views + - Completely removes the pain of clunky Object Explorer + - Switch between different servers and databases + - Perform common operation (select data, modify table, design table, etc.) with ease + + + +## Poor Mans T-SQL Formatter +Download page: [Poor Mans T-SQL Formatter]
+Release date: 2013-10-23
+Support Version: 2008-2012
+Developer: Tao Klerks
+Free version: Yes
+Price: No + +This formatter does implement a high-level SQL tokenizer and parser, but the granularity of the parser is not very high. +It does not distinguish between different types of DML, it does not parse full expression trees, etc - there's a lot it doesn't do, it just does the bare minimum to support the target formatting. + + + +## Tabs Studio +Download page: [Tabs Studio]
+Release date: 2017-08-24
+Support Version: 2012-2017
+Developer: Vlasov Studio
+Free version: No
+Price: $49 + +Tabs Studio is a Visual Studio and SSMS extension empowering you to work comfortably with any number of open documents. + + - Multiple rows of tabs + - Tab grouping + - Tab coloring + - Title transformation + - Keyboard navigation + - Flexible behavior + - Customizable presentation + - Extensibility API + + + +## Workload Addin +Download page: [Workload Addin]
+Release date: 2017-02-07
+Support Version: 2008-2012
+Developer: Tomáš Bauer
+Free version: Yes
+Price: No + +There are tools in SQL Server that allow to collect SQL statements for a certain period. +The problem of these tools is that the amount of data recorded in this way may not be small and that the recorded data requires further processing. +Also, work with these tools may not be easy. +This article describes a tool that solves the problem described above. +This tool can automatically collect information about executed SQL statements and it does their analysis and stores the required information in a custom SQL database, avoiding unnecessary or duplicate SQL statements being stored. + + + +## SQL Server Diagnostics +Download page: [SQL Server Diagnostics]
+Release date: 2017-06-22
+Support Version: 2016-2017
+Developer: Microsoft
+Free version: Yes
+Price: No + +SQL Server Diagnostics is a collection of micro-services which enables SQL Server customers to self-help and debug SQL Server issues related to memory dumps and receive recommended fixes for their issues. + + + +## VersionSQL +Download page: [VersionSQL]
+Release date: 2017-02-16
+Support Version: 2012-2017
+Developer: VersionSQL
+Free version: Yes
+Price: $149 + +Lightweight add-in to connect your databases to your source control system + + + +## Spotlight Tuning Pack +Download page: [Spotlight Tuning Pack]
+Release date: 2018-06-01
+Support Version: 2012-2017
+Developer: Quest Software Inc
+Free version: Yes
+Price: $180 + +Powerful SQL optimization and query plan analysis. +The analysis will indicate whether the Query Plan can be tuned to improve performance, or whether the SQL Statement can be rewritten to optimize its efficiency. + + + +## Michel Max - SSMS Tools +Download page: [Michel Max - SSMS Tools]
+Release date: 2018-11-16
+Support Version: 2012-2018
+Developer: Michel Max
+Free version: Yes
+Price: No + + - Format SQL Code. + - Prepare the Procedures/Functions to be called. + - Regions to organize the code. + - Retrieve the complete Information of a Table. + - Tab Colorize, base in the configuration window you can colorize the existing session based in the filters that you applied, making easy to the developer to identify each server/database he/she is working on. + - Selection Highlight for the same word in the SQL Code. + - Style Markers for the same word in the SQL Code. + - Configurable CRUD creation. + - Copy/Paste Table Structure and Data (Client Side). + - Grid Search, with advanced Extended and Regular Expression. + - Grid Search Highlight. + - Grid Style Markers. + - Grid Export to JSON, Excel XML. + - Grid Image Capture. + - Configurable Header Text Template, with quick insert, so you can easily sign you codes. + - Quick encapsulate code in region. + +Other versions: + - https://sourceforge.net/projects/michelmaxssmstools2012/ + - https://sourceforge.net/projects/michelmaxssmstools2014/ + - https://sourceforge.net/projects/michelmaxssmstools2016/ + - https://sourceforge.net/projects/michelmaxssmstools2017/ + - https://sourceforge.net/projects/michelmaxssmstools2019/ + + + +## SSMS Schema Folders +Download page: [SSMS Schema Folders]
+Release date: 2018-10-06
+Support Version: 2012-2018
+Developer: Michel Max
+Free version: Yes
+Price: No + +This an extension for SQL Server Management Studio 2012, 2014, 2016 and 17. +It groups sql objects in Object Explorer (tables, views, etc.) into schema folders. + + [SSMSBoost]:http://www.ssmsboost.com/ -[SQL Code Guard]:http://sqlcodeguard.com/ +[SqlSmash]:http://www.sqlsmash.com/ +[Red Gate SQL Code Guard]:https://www.red-gate.com/products/sql-development/sql-code-guard/ [SQL Search]:http://www.red-gate.com/products/sql-development/sql-search/ -[SQL Scripts Manager]:http://www.red-gate.com/products/dba/sql-scripts-manager/ [Red Gate SQL Test]:http://www.red-gate.com/products/sql-development/sql-test/ -[Supratimas]:http://www.supratimas.com/addin/buy.html +[Red Gate SQL Source Control]:http://www.red-gate.com/products/sql-development/sql-source-control/ +[Supratimas]:http://www.supratimas.com/Home/Downloads [dbForge SQL Complete]:https://www.devart.com/dbforge/sql/sqlcomplete/ordering.html [SSMS Tools Pack]:http://www.ssmstoolspack.com/Features [SQL Pretty Printer]:http://www.excel-sql-server.com/excel-sql-server-import-export-using-excel-add-ins.htm @@ -332,10 +653,27 @@ SQL Assistant equips database developers and DBAs with the productivity tools th [ApexSQL Refactor]:https://www.apexsql.com/sql_tools_refactor.aspx [ApexSQL Search]:https://www.apexsql.com/sql_tools_search.aspx [ApexSQL Source Control]:https://www.apexsql.com/sql_tools_source_control.aspx +[ApexSQL Unit Test]:https://www.apexsql.com/sql_tools_unit_test.aspx [Spotlight Developer]:https://www.spotlightessentials.com/spotlight-developer [dbForge Source Control]:https://www.devart.com/dbforge/sql/source-control/ [dbForge Unit Test]:https://www.devart.com/dbforge/sql/unit-test/ [dbForge Data Pump]:https://www.devart.com/dbforge/sql/data-pump/ [dbForge Index Manager]:https://www.devart.com/dbforge/sql/index-manager/ -[dbForge Object Search]:https://www.devart.com/dbforge/sql/search/ +[dbForge Search]:https://www.devart.com/dbforge/sql/search/ +[dbForge Monitor]:https://www.devart.com/dbforge/sql/monitor/ +[dbForge SQL Complete]:https://www.devart.com/dbforge/sql/sqlcomplete/ [SoftTree SQL Assistant]:http://www.softtreetech.com/isql.htm +[SQL Enlight for SSMS]:http://www.ubitsoft.com/products/sqlenlight-for-ssms/index.php +[SQL Hunting Dog]:http://www.sql-hunting-dog.com/ +[Poor Mans T-SQL Formatter]:http://architectshack.com/PoorMansTSqlFormatter.ashx +[Tabs Studio]:https://tabsstudio.com +[Workload Addin]:https://www.codeproject.com/Articles/1188027/Capture-of-a-Typical-SQL-Server-Database-Workload +[SQL Server Diagnostics]:https://blogs.msdn.microsoft.com/sql_server_team/sql-server-diagnostics-preview/ +[VersionSQL]:https://www.versionsql.com/ +[Spotlight Tuning Pack]:https://www.spotlightcloud.io/spotlight-cloud-tuning-pack +[Michel Max - SSMS Tools]:https://sourceforge.net/projects/michelmaxssmstools2017/ +[SSMS Schema Folders]:https://github.com/nicholas-ross/SSMS-Schema-Folders + +[SQL_Search Download]:https://download.red-gate.com/SQL_Search.exe +[Apex SQL Search Download]:https://www.apexsql.com/zips/ApexSQLSearch.exe +[DbForge Search Download]:https://www.devart.com/dbforge/sql/search/searchsql22std.exe diff --git a/SSMS/SSMS_Errors.md b/SSMS/SSMS_Errors.md new file mode 100644 index 00000000..5a2bb310 --- /dev/null +++ b/SSMS/SSMS_Errors.md @@ -0,0 +1,12 @@ +# SSMS known errors and bugs + + - [What to Do When You Get a "Cache is Out of Date" Error Message](https://www.databasejournal.com/features/mssql/what-to-do-when-you-get-a-cache-is-out-of-date-error-message.html) + - [CTRL+R does not hide the Query Result window in SSMS](https://stackoverflow.com/questions/17068661/ctrlr-does-not-hide-the-query-result-window-in-ssms) + - [SQL SERVER – Unable to Launch SSMS Error – Cannot Find One or More Components. Please Reinstall the Application](https://blog.sqlauthority.com/2017/12/06/sql-server-unable-launch-ssms-error-cannot-find-one-components-please-reinstall-application/) + - [Object Reference Not Set to an Instance of an Object’ When Failing Over an Availability Group Using SSMS <= 17.5](https://sqlundercover.com/2018/03/29/object-reference-not-set-to-an-instance-of-an-object-when-failing-over-an-availability-group-using-ssms-17-5/) + - [File Growth Rate – The GUI Lies](https://sqlrus.com/2018/06/file-growth-rate-the-gui-lies/) + - [SSMS: Allow forcing case-insensitive matching in Object Explorer filters](https://feedback.azure.com/forums/908035-sql-server/suggestions/36679522-ssms-allow-forcing-case-insensitive-matching-in-o) + - [SSMS: Object Explorer Filtering allows for SQL Injection (oops)](https://feedback.azure.com/forums/908035-sql-server/suggestions/36678803-ssms-object-explorer-filtering-allows-for-sql-inj) + - [SSMS won't open scripts on double-click](https://stackoverflow.com/q/1726577/2298061) + - [SSMS Crash While Using Backup to URL or Connecting to Storage](https://blog.sqlauthority.com/2018/10/09/sql-server-sql-server-management-studio-crash-while-using-backup-to-url-or-connecting-to-storage/) + - [Error in SSMS: Attempted to read or write protected memory.](https://sqlstudies.com/2019/02/18/error-in-ssms-attempted-to-read-or-write-protected-memory/) diff --git a/SSMS/SSMS_Shortcuts.md b/SSMS/SSMS_Shortcuts.md index 47bb56e1..e7a0c1e8 100644 --- a/SSMS/SSMS_Shortcuts.md +++ b/SSMS/SSMS_Shortcuts.md @@ -1,13 +1,15 @@ # SQL Server Management Studio Keyboard Shortcuts Source Links: - - [MSDN SQL Server Management Studio Keyboard Shortcuts](https://msdn.microsoft.com/en-us/library/ms174205.aspx) - - [MSDN Customize Menus and Shortcut Keys](https://msdn.microsoft.com/en-us/library/ms174178.aspx) + - [SQL Server Management Studio Keyboard Shortcuts](https://docs.microsoft.com/en-us/sql/ssms/sql-server-management-studio-keyboard-shortcuts) + - [Customize Menus and Shortcut Keys](https://docs.microsoft.com/en-us/sql/ssms/customize-menus-and-shortcut-keys) + - [Shortcuts Cheat Sheet SSMS & Windows](https://www.am2.co/2016/03/shortcuts-cheat-sheet/) + - [SSMS: The Query Window Keyboard Shortcuts](https://www.red-gate.com/simple-talk/wp-content/uploads/imported/1307-keystrokes.htm) SQL Server Management Studio offers users two keyboard schemes. By default, it uses the SQL Server 2016 scheme, with keyboard shortcuts based on Microsoft Visual Studio 2010. Management Studio also offers a keyboard scheme similar to the standard scheme from SQL Server 2008 R2. To change the keyboard scheme or add additional keyboard shortcuts, on the **Tools** menu, click **Options**. Select the desired keyboard scheme on the Environment, Keyboard page. -## Menu Activation Keyboard Shortcuts +## Menu Activation Keyboard Shortcuts | Action | SQL Server 2016 | SQL Server 2008 R2 | |-----------------------------------------------------------------------------------------|------------------------|--------------------| diff --git a/SSMS/SSMS_Snippets/Procedure_dynamic_create.sql b/SSMS/SSMS_Snippets/Procedure_dynamic_create.sql index a9f904ca..637d9cc9 100644 --- a/SSMS/SSMS_Snippets/Procedure_dynamic_create.sql +++ b/SSMS/SSMS_Snippets/Procedure_dynamic_create.sql @@ -1,17 +1,17 @@ -DECLARE @procedureName SYSNAME = 'dbo.usp_PrintDebug'; -DECLARE @tsqlCommand VARCHAR(MAX) = ''; - -SET @tsqlCommand = 'IF OBJECT_ID(''' + @procedureName + ''', ''P'') IS NULL EXECUTE (''CREATE PROCEDURE ' + @procedureName + ' as select 1''); -GO - -ALTER PROCEDURE ' + @procedureName + ' - -AS - -BEGIN - -SELECT 1 - -END;' - +DECLARE @procedureName SYSNAME = 'dbo.usp_PrintDebug'; +DECLARE @tsqlCommand VARCHAR(MAX) = ''; + +SET @tsqlCommand = 'IF OBJECT_ID(''' + @procedureName + ''', ''P'') IS NULL EXECUTE (''CREATE PROCEDURE ' + @procedureName + ' as select 1''); +GO + +ALTER PROCEDURE ' + @procedureName + ' + +AS + +BEGIN + +SELECT 1 + +END;' + PRINT @tsqlCommand; \ No newline at end of file diff --git a/SSMS/SSMS_Snippets/loop.sql b/SSMS/SSMS_Snippets/loop.sql index 4747f310..20ad7eb4 100644 --- a/SSMS/SSMS_Snippets/loop.sql +++ b/SSMS/SSMS_Snippets/loop.sql @@ -1,18 +1,18 @@ -DECLARE @startLoop INTEGER = 1960; -DECLARE @endLoop INTEGER = 2012; -DECLARE @columnMask NVARCHAR( 1000 ) = ''; -DECLARE @columns NVARCHAR( MAX ) = ''; -DECLARE @step INTEGER = 1; -DECLARE @debug BIT = 0; - -WHILE( @startLoop <= @endLoop ) -BEGIN - SET @columns = @columns + QUOTENAME( @columnMask + CAST( @startLoop AS NVARCHAR ) ) + ','; - IF @debug = 1 - PRINT @columns; - SET @startLoop = @startLoop + @step; - IF @debug = 1 - PRINT @startLoop; -END - +DECLARE @startLoop INTEGER = 1960; +DECLARE @endLoop INTEGER = 2012; +DECLARE @columnMask NVARCHAR( 1000 ) = ''; +DECLARE @columns NVARCHAR( MAX ) = ''; +DECLARE @step INTEGER = 1; +DECLARE @debug BIT = 0; + +WHILE( @startLoop <= @endLoop ) +BEGIN + SET @columns = @columns + QUOTENAME( @columnMask + CAST( @startLoop AS NVARCHAR ) ) + ','; + IF @debug = 1 + PRINT @columns; + SET @startLoop = @startLoop + @step; + IF @debug = 1 + PRINT @startLoop; +END + PRINT LEFT( @columns, LEN( @columns ) - 1 ); \ No newline at end of file diff --git a/SSMS/SSMS_Tips.md b/SSMS/SSMS_Tips.md new file mode 100644 index 00000000..6a314aaf --- /dev/null +++ b/SSMS/SSMS_Tips.md @@ -0,0 +1,796 @@ +# SQL Server Management Studio Tips +Most tips works for SSMS higher 2008 but some of them only works for SSMS 2016 and above + +## Road map + - [ ] https://blogs.technet.microsoft.com/dataplatforminsider/2018/02/20/whats-new-in-ssms-17-5-data-discovery-and-classification/ + - [ ] https://bertwagner.com/2018/02/27/splitting-it-up-easy-side-by-side-queries-in-ssms/ + - [ ] https://sqlrus.com/2018/03/ssms-output-window/ + - [ ] https://www.sqlshack.com/whats-new-in-ssms-17-5-data-discovery-and-classification-and-more/ + - [ ] Add gifs or images for all tips + - [ ] Add some tips from excellent ebook http://insiders.sqldownunder.com/ssms-tips-and-tricks/ + - [ ] Add Memory Optimiser Advisor tip https://www.red-gate.com/simple-talk/sql/t-sql-programming/converting-database-memory-oltp/ + - [ ] Add Removing Connections from the SSMS connection dialog https://blog.waynesheffield.com/wayne/archive/2018/05/removing-servers-ssms-connection-dialog/ + - [ ] Add Save the Connection String Parameters http://www.sqlservercentral.com/blogs/sql-geek/2018/07/26/save-the-connection-string-parameters-in-ssms-alwayson/ + - [ ] Analyze Actual Execution Plan https://www.scarydba.com/2018/08/06/analyze-actual-execution-plan/ + - [ ] Compare Actual Execution Plans + - [ ] [Database Upgrade using the Query Tuning Assistant wizard in SSMS 18](https://www.sqlshack.com/database-upgrade-using-the-query-tuning-assistant-wizard-in-ssms-18/) + - [ ] [Export Data From SSMS Query to Excel](https://blog.sqlauthority.com/2019/01/16/sql-server-export-data-from-ssms-query-to-excel/) + - [ ] [Starting SSMS with a specific connection and script file](http://dbamastery.com/tips/ssms-cmdline-utility/) + +Content: +1. [Import and Export Settings](#1) +2. [SSMS Shortcuts](#2) +3. [Keyboard Shortcuts for Favorite Stored Procedures](#3) +4. [SSMS Scripting Option](#4) +5. [Selecting a block of text using the ALT Key](#5) +6. [Script Table and Column Names by Dragging from Object Explorer](#6) +7. [Disable Copy of Empty Text](#7) +8. [Client Statistics](#8) +9. [Configure Object Explorer to Script Compression and Partition Schemes for Indexes](#9) +10. [Using GO X to Execute a Batch or Statement Multiple Times](#10) +11. [SSMS Template Replacement](#11) +12. [Color coding of connections](#12) +13. [SQLCMD mode](#13) +14. [Script multiple objects using the Object Explorer Details Windows](#14) +15. [Registered Servers / Central Management Server](#15) +16. [Splitting the Query Window and Annotations and Map Mode for Vertical Scroll Bar](#16) +17. [Moving columns in the results pane](#17) +18. [Generating Charts and Drawings in SQL Server Management Studio](#18) +19. [Additional Connection Parameters](#19) +20. [Working with tabs headers](#20) +21. [Hiding tables in SSMS Object Explorer](#21) +22. [UnDock Tabs and Windows for Multi Monitor Support](#22) +23. [RegEx-Based Finding and Replacing of Text in SSMS](#23) +24. [Changing what SSMS opens on startup](#24) +25. [Modifying New Query Template](#25) +26. [Query Execution Options](#26) +27. [SQL Server Diagnostics Extension](#27) +28. [Connect to SQL Servers in another domain using Windows Authentication](#28) +29. [SSMS Default Reports](#29) +30. [Live Query Statistics](#30) +31. [Searching in Showplan](#31) +32. [Object Explore Details](#32) +33. [Working with Azure SQL](#33) +34. [Using Extended Events and Profiler in SSMS](#34) +35. [Vulnerability Assessment in SSMS](#35) +36. [Import Flat File to SQL Wizard](#36) +37. [Reference](#reference) + + +Great thanks to: + - Kendra Little ([b](http://www.littlekendra.com/) | [t](https://twitter.com/Kendra_Little)) + - Slava Murygin ([b](http://slavasql.blogspot.ru/)) + - Mike Milligan ([b](http://www.bidn.com/Blogs/userid/43/author/mike-milligan)) + - Kenneth Fisher ([b](https://twitter.com/sqlstudent144) | [t](https://twitter.com/sqlstudent144)) + - William Durkin ([b](http://www.williamdurkin.com/) | [t](https://twitter.com/sql_williamd)) + - John Morehouse ([b](http://sqlrus.com/) | [t](http://twitter.com/sqlrus)) + - Phil Factor ([b](https://www.red-gate.com/simple-talk/author/phil-factor/) | [t](https://twitter.com/phil_factor)) + - Klaus Aschenbrenner ([b](https://www.sqlpassion.at/) | [t](https://twitter.com/Aschenbrenner)) + - Latish Sehgal ([b](http://www.dotnetsurfers.com/)) + - Arvind Shyamsundar ([b](https://blogs.msdn.microsoft.com/arvindsh/)) + - [SQLMatters](http://www.sqlmatters.com/) + - [MSSQLTips](https://www.mssqltips.com/) + - Anthony Zanevsky, Andrew Zanevsky and Katrin Zanevsky + - Andy Mallon ([b](http://www.am2.co/) | [t](https://twitter.com/AMtwo)) + - Aaron Bertrand ([b](http://sqlperformance.com/author/abertrand) | [t](https://twitter.com/AaronBertrand)) + - Daniel Calbimonte ([b](https://www.sqlshack.com/author/daniel-calbimonte/) | [t](https://twitter.com/dcalbimonte)) + - Ahmad Yaseen ([b](https://www.sqlshack.com/author/ahmad-yaseen/) | [t](https://twitter.com/AhmadZYaseen)) + - Solomon Rutzky ([b](https://sqlquantumleap.com/) | [t](https://twitter.com/SqlQuantumLeap)) + - Bert Wagner ([b](https://blogs.sentryone.com) | [t](https://twitter.com/bertwagner)) + - Thomas LaRock ([b](https://thomaslarock.com/) | [t](https://twitter.com/SQLRockstar)) + - Jen Mccown ([b](http://www.midnightdba.com/Jen/author/jen/)) + - Louis Davidson ([b](https://www.red-gate.com/simple-talk/author/louis-davidson/) | [t](https://twitter.com/drsql)) + + + +## Import and Export Settings +`Tools > Options > Environment > Import and Export Settings` + +Default settings (if you need to compare with yours) you can find here: [SSMS settings files] + +You can configure so many settings in SSMS and then export it and use on all your computers. +Below link provide detailed instruction and awesome Dark theme configuration: [Making SSMS Pretty: My Dark Theme](https://blogs.sentryone.com/aaronbertrand/making-ssms-pretty-my-dark-theme/) + +Also you can create shared team settings file and use it from network location. +Detailed information you can find in this article [Symbolic Links for Sharing Template Files or "How I Broke Management Studio with Symbolic Links"](http://sqlmag.com/sql-server/symbolic-links-sharing-template-files-or-how-i-broke-management-studio-symbolic-links) + +![Import and Export Settings](/SSMS/SSMS_Tips/import_and_export_settings.png) + + + +## SSMS Shortcuts +All shortcuts you can find [here](https://github.com/ktaranov/sqlserver-kit/blob/master/SSMS/SSMS_Shortcuts.md) +Known problem for SSMS 2012 and 2014: [CTRL+R does not hide the Query Result window in SSMS] + +Create custom shortcut as simple as possible: +1. `Tools > Options > Environment > Keyboard` +2. Use the search bar `Show Commands Containing` to find and select the command. +3. In `Press Shortcut Keys`, press the shortcut combination you want to use. +4. Click `Assign`. If you don’t click `Assign`, and just click `OK`, your shortcut won’t be assigned. +5. Click `OK`. (Note that some shortcut changes take effect in query windows you open after the change.) +More details here: [MANAGEMENT STUDIO SHORTCUT – CHANGE CONNECTION](http://www.midnightdba.com/Jen/2018/03/management-studio-shortcut-change-connection/) + +Most useful are: + +| Shortcut | Description | +|-----------------------|----------------------------------------| +| `Ctrl + U` | Change Selected Database | +| `Ctrl + R` | Toggle Results Pane | +| `Ctrl + Space` | Activate Autocomplete | +| `Ctrl + Shift + V` | [Cycle through clipboard ring] | +| `Ctrl + ]` | Navigate to matching parenthesis | +| `Ctrl + –` | Navigate to last cursor location | +| `Ctrl + Shift + –` | Navigate forward to cursor location | +| `Ctrl + K, Ctrl + C` | Comments selected text | +| `Ctrl + K, Ctrl + U` | Uncomments selected text | +| `Ctrl + K, Ctrl + K` | Toggle Bookmark | +| `Ctrl + K, Ctrl + N` | Go to Next Bookmark | +| `Ctrl + L` | Display Estimated Query Execution plan | +| `Shift + Alt + Enter` | View Code Editor in Full Screen | +| `Ctrl + I` | Quick Search | +| `Ctrl + F4` | Close the current MDI child window | +| `Ctrl + F5` | Parse query to check for errors | +| `Shift + F10` | Simulate right mouse button | +| `Ctrl + Alt + T` | Display Template Explorer | +| `Ctrl + Shift + M` | Specify values for template parameters | +| `Ctrl + Shift + R` | Refresh local cache | +| `Ctrl + Alt + S` | Include Client Statistics | + + + +## Keyboard Shortcuts for Favorite Stored Procedures +`Tools > Options > Environment > Keyboard > Query Shortcuts` + +![Keyboard Shortcuts for Favorite Stored Procedures](/SSMS/SSMS_Tips/keyboard_shortcuts_for_stored_procedures.png) + +3 Shortcuts can not be changed: `Alt + F1`, `Ctrl + 1` and `Ctrl + 2`. +For another 9 shortcuts my recommendation awesome open source Brent Ozar teams procedures and with some limitations Adam Machanic `sp_WhoIsActive`: + +| Query Shortcut | Stored Procedure | +|----------------|----------------------| +| `Alt + F1` | [sp_help] | +| `Ctrl + F1` | [sp_WhoIsActive] | +| `Ctrl + 1` | [sp_who] | +| `Ctrl + 2` | [sp_lock] | +| `Ctrl + 3` | [sp_Blitz] | +| `Ctrl + 4` | [sp_BlitzCache] | +| `Ctrl + 5` | [sp_BlitzWho] | +| `Ctrl + 6` | [sp_BlitzQueryStore] | +| `Ctrl + 7` | [sp_BlitzFirst] | +| `Ctrl + 8` | [usp_BulkUpload] | +| `Ctrl + 9` | [sp_BlitzTrace] | +| `Ctrl + 0` | [sp_foreachdb] | + +Also recommended: + - [sp_BlitzRS] + - [sp_DatabaseRestore] + - [usp_BulkUpload] + +[sp_help]:https://docs.microsoft.com/en-us/sql/relational-databases/system-stored-procedures/sp-help-transact-sql +[sp_who]:https://docs.microsoft.com/en-us/sql/relational-databases/system-stored-procedures/sp-who-transact-sql +[sp_lock]:https://docs.microsoft.com/en-us/sql/relational-databases/system-stored-procedures/sp-lock-transact-sql +[sp_WhoIsActive]:http://whoisactive.com +[sp_Blitz]:https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit/blob/dev/sp_Blitz.sql +[sp_BlitzBackups]:https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit/blob/dev/sp_BlitzBackups.sql +[sp_BlitzCache]:https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit/blob/dev/sp_BlitzCache.sql +[sp_BlitzFirst]:https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit/blob/dev/sp_BlitzFirst.sql +[sp_BlitzIndex]:https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit/blob/dev/sp_BlitzIndex.sql +[sp_BlitzQueryStore]:https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit/blob/dev/sp_BlitzQueryStore.sql +[sp_BlitzRS]:https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit/blob/dev/sp_BlitzRS.sql +[sp_BlitzTrace]:https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit/blob/dev/sp_BlitzTrace.sql +[sp_BlitzWho]:https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit/blob/dev/sp_BlitzWho.sql +[sp_DatabaseRestore]:https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit/blob/dev/sp_DatabaseRestore.sql +[sp_foreachdb]:https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit/blob/dev/sp_foreachdb.sql +[usp_BulkUpload]:https://github.com/ktaranov/sqlserver-kit/blob/master/Stored_Procedure/usp_BulkUpload.sql + + + +## SSMS Scripting Option + +### Script any object with data +`Right click on database name > Tasks > Generate Scripts …` + +![Script any object with data](/SSMS/SSMS_Tips/ssms_script_objects.gif) + +### The Default Scripting Option +In the previous SQL Server Management Studio versions, the generated script will target the latest released SQL Server version. +In SSMS 17.2, the `Match Script Settings to Source` has been added, with the default `True` value means that the generated script will target the source SQL Server instance’s version, edition, and engine type, where the `False` value will force the scripting to behave as the previous SSMS versions. + +`Tools > Options > SQL Server Object Explore > Scripting > Version Options > Match Script Settings to Source` + +More details here: [What’s new in SQL Server Management Studio 17.2; Authentication methods, scripting options and more] + + + +## Selecting a block of text using the ALT Key +By holding down the ALT key as you select a block of text you can control the width of the selection region as well as the number of rows. +Also you can activate multi line mode with `Shift + Alt` keys and using keyboard arrows to format multi line code. + +More info and video about this awesome feature in this article: [My Favorite SSMS Shortcut (After Copy/Paste)](https://bertwagner.com/2017/11/28/multiline-edit-block-selection-alt-highlight-trick/) (by Bert Wagner) + + + +## Script Table and Column Names by Dragging from Object Explorer +Save keystrokes by dragging +Drag the `Columns` folder for a table in to auto-type all column names in the table in a single line. + - Warning: this doesn’t include [brackets] around the column names, so if your columns contain spaces or special characters at the beginning, this shortcut isn’t for you + - Dragging the table name over will auto-type the schema and table name, with brackets. + + + +## Disable Copy of Empty Text + + - Select a block of text to copy; + - Move the cursor the place where you want to paste the code; + - Accidentally press `Ctrl+C` again instead of `Ctrl+V`; + - Block of copied text is replaced by an empty block; + +This behavior can be disabled in SSMS: go to `Tools > Options > Text Editor > All Languages > General > 'Apply Cut or Copy Commands to blank lines when there is no selection'` and uncheck the checkbox. + +![Disable Copy of Empty Text](/SSMS/SSMS_Tips/disable_copy_of_empty_text.png) + + + +## Client Statistics +When you enable that option for your session (`Ctrl + Alt + S`), SQL Server Management Studio will give you more information about the client side processing of your query. + +The Network Statistics shows you the following information: + - Number of Server Roundtrips + - TDS Packets sent from Client + - TDS Packets received from Server + - Bytes sent from Client + - Bytes received from Server + +The Time Statistics additionally shows you the following information: + - Client Processing Time + - Total Execution Time + - Wait Time on Server Replies + + + +## Configure Object Explorer to Script Compression and Partition Schemes for Indexes +Is this index compressed or partitioned? + +By default, you wouldn’t know just by scripting out the index from Object Explorer. If you script out indexes this way to check them into source code, or to tweak the definition slightly, this can lead you to make mistakes. + +You can make sure you’re aware when indexes have compression or are partitioned by changing your scripting settings: +- Click `Tools – > Options -> SQL Server Object Explorer -> Scripting` +- Scroll down in the right pane of options and set both of these to `True` + - *Script Data Compression Options* + - *Script Partition Schemes* +- Click OK + + + +## Using GO X to Execute a Batch or Statement Multiple Times +The `GO` command marks the end of a batch of statements that should be sent to SQL Server for processing, and then compiled into a single execution plan. +By specifying a number after the `GO` the batch can be run specified number of times. This can be useful if, for instance, you want to create test data by running an insert statement a number of times. Note that this is not a Transact SQL statement and will only work in Management Studio (and also SQLCMD or OSQL). For instance the following SQL can be run in SSMS : + +```sql +IF OBJECT_ID('TestData','U') IS NOT NULL DROP TABLE TestData; + +CREATE TABLE TestData(ID INT IDENTITY (1,1), CreatedDate DATETIME2); +GO + +INSERT INTO TestData(CreatedDate) SELECT GETDATE(); +GO 10 + +SELECT ID, CreatedDate FROM TestData; + +IF OBJECT_ID('TestData','U') IS NOT NULL DROP TABLE TestData; + +``` + +This will run the insert statement 10 times and therefore insert 10 rows into the `TestData` table. +In this case this is a simpler alternative than creating a cursor or while loop. + + + +## SSMS Template Replacement +One under-used feature of Management Studio is the template replacement feature. SSMS comes with a library of templates, but you can also make your own templates for reusable scripts. + +In your saved .sql script, just use the magic incantation to denote the parameters for replacement. The format is simple: `` + +Then, when you open the `.sql` script, you hit `CTRL + Shift + M`, and SSMS will give you a pop-up to enter your replacement values. + + + +## Color coding of connections +SQL Server Management Studio has the capability of coloring the bar at the bottom of each query window, with the color dependent on which server is connected. +This can be useful in order to provide a visual check of the server that a query is to be run against, for instance to color code production instances as red, development as green and amber as test. +This can also be used in conjunction with Registered Servers and CMS (Central Management Server). +To add a color bar when connecting to the server click on the Options button in the Connect to Database Engine window and then select the Connection Properties window. +Select the check box towards the bottom of the window and use the ‘Select…’ button to choose a color. + + + +## SQLCMD mode +Switching on SQLCMD mode enables a number of useful extra scripting style commands in SSMS. +In particular you can use it to change to the connection credentials within the query window, so that you can run a query against multiple servers from the same query window. +There are more details of how to do this here: [Changing the SQL Server connection within an SSMS Query Windows using SQLCMD Mode](http://www.sqlmatters.com/Articles/Changing%20the%20SQL%20Server%20connection%20within%20an%20SSMS%20Query%20Windows%20using%20SQLCMD%20Mode.aspx) + +Also some great tips from Louis Davidson article: [Using SQLCMD, End Execution of SQL Commands in a File](https://www.red-gate.com/simple-talk/blogs/using-sqlcmd-end-execution-sql-commands-file/) +1. Making Sure You Don’t Accidentally Execute The Entire File By Mistake using `:EXIT` command in your scripts, details see here [sqlcmd Commands]. +2. Quitting the Statements of a File Based on a Condition using `:On Error[ exit | ignore]` command, details see here [sqlcmd Commands]. + +[sqlcmd Commands]:https://docs.microsoft.com/en-us/sql/tools/sqlcmd-utility?view=sql-server-2017#sqlcmd-commands + + + +## Script multiple objects using the Object Explorer Details Windows +Individual database objects, such as a table or stored procedure, can be scripted within SSMS by right clicking on the object within Object Explorer and selecting the appropriate item in the drop down menu. +However if you have a lot of objects to script that can quickly become time consuming. +Fortunately it’s possible to select multiple objects and script them up all together in a single query window. +To do this just open the Object Explorer Details window from the View menu (or press the F7 key). +If you want to script up multiple (or all) tables, select the Tables item under the relevant database in Object Explorer. +A list of all tables appears in the Object Explorer Details window. +Select the tables you want to script (using the Control key if necessary) and then right click and select which script option you want – e.g. to create a table create script for all tables + + + +## Registered Servers / Central Management Server +If you have a lot of servers then re-entering the details in Object Explorer every time you start SSMS can be frustrating and time consuming. +Fortunately there are two facilities within SSMS that enable these details to be entered just once and "remembered" each time you open up SSMS. +These two facilities are **Registered Servers** and **Central Management Servers**. +These were introduced in different versions of SQL Server and work in different ways, each has its own advantages and disadvantages so you may want to use both. + +To add a registered server open the Registered Servers window from the View menu (or click `CTRL + ALT + G`), the window should appear in the top left corner of SSMS. +Right click on the Local Server Groups folder and select ‘New Server Registration…’. Enter the server details and close the window. +This new server should then appear under Local Server Groups, you can then right click and open up the server in Object Explorer or open a new query window. +The server details are stored locally in an XML file and so will appear next time you open SSMS. +If you have a lot of servers then you can also create Server Groups to group together similar servers. +One advantage of creating groups (other than being able to logically group similar servers together) is that you can run a query against all servers in the group, by right clicking the group and selecting ‘New Group’. + +Central Management Server are similar to Registered Servers but with some differences, the main one being that the server details are stored in a database (the Central Management Server) rather than a local file. +A significant limitation with CMS is that the CMS server itself can’t be included in the list of servers. + + + +## Splitting the Query Window and Annotations and Map Mode for Vertical Scroll Bar +The query window in SSMS can be split into two so that you can look at two parts of the same query simultaneously. +Both parts of the split window can be scrolled independently. This is especially useful if you have a large query and want to compare different areas of the same query. +To split the window simply drag the bar to the top right hand side of the window as shown below. + +The splitter bar allows you to view one session with two panes. You can scroll in each pane independently. You can also edit in both the top and bottom pane. + +![Splitting the Query Window](/SSMS/SSMS_Tips/splitting_the_query_window.gif) + +Also you can view some very useful features like annotations and Map mode, detailed instruction here: [SSMS Tip #1: Annotations and Map Mode for Vertical Scroll Bar] + +Annotations show the relative position of certain aspects of the script, such as errors, changes, etc. +There are four types of annotations, the first three of which are shown in their own columns on the left side of the scroll bar: + + - "Changes" are show in yellow (unsaved) and green (saved). These occupy the left column. + - "Marks" are shown in maroon (Breakpoints) and black (Bookmarks). These occupy the left column. + - "Errors" are shown in red. These occupy the right column. + - "Caret Position" is a thin, blue line going horizontally across the scroll bar. This represents the line of the script that the cursor is on. + + + +## Moving columns in the results pane +It may not be immediately obvious but you can switch columns around in the results pane when using the grid view, by dragging the column headers and dropping them next to another column header. +This can be useful if you want to rearrange how the results are displayed without amending the query, especially if you have a lot of columns in your result set. +This works only for one column. + + + +## Generating Charts and Drawings in SQL Server Management Studio +You don't have to settle for T-SQL's monochrome text output. These stored procedures let you quickly and easily turn your SELECT queries' output into colorized charts and even computer-generated art. +To turn your own data into a line, column, area, or bar chart using the Chart stored procedure, you need to design a SELECT query that serves as the first parameter in the stored procedure call. + +Detailed article and code here: [Generating Charts and Drawings in SQL Server Management Studio] + +Also you can generate amazing chart using awesome R libraries, detailed article: [View R Plots from within SQL Server Management Studio] + + + +## Additional Connection Parameters +One such change SSMS got for free is the connection resiliency logic within the `SqlConnection.Open()` method. +To improve the default experience for clients which connect to Azure SQL Database, the above method will (in the case of initial connection errors / timeouts) now retry 1 time after sleeping for 10 seconds. These numbers are configurable by properties called ConnectRetryCount (default value 1) and ConnectRetryInterval (default value 10 seconds.) +The previous versions of the SqlConnection class would not automatically retry in cases of connection failure. + +There is a simple workaround for this situation. It is to add the following parameter string into the `Additional Connection Parameters` tab within the SSMS connection window. The good news is that you only need to do this once, as the property is saved for future sessions for that SQL Server (until of course it is removed by you later.) +``` +ConnectRetryCount=0 +``` + +![Additional Connection Parameters](/SSMS/SSMS_Tips/additional_connection_parameters.png) + + + +## Working with tabs headers +You can view [SPID](https://docs.microsoft.com/en-us/sql/t-sql/functions/spid-transact-sql) in tabs header, quickly open script containing folder or copy script file path. + +![Working with tabs headers](/SSMS/SSMS_Tips/working_with_tabs_headers.png) + + + +## Hiding tables in SSMS Object Explorer +1. You can actually hide an object from object explorer by assigning a specific extended property: +``` +EXEC sp_addextendedproperty +@name = N'microsoft_database_tools_support', +@value = 'Hide', +@level0type = N'Schema', @level0name = 'Person', +@level1type = N'Table', @level1name = 'Address'; +GO +``` + +You can then remove the property (and the object will show back up) like so: +``` +EXEC sp_dropextendedproperty +@name = N'microsoft_database_tools_support', +@level0type = N'Schema', @level0name = 'Person', +@level1type = N'Table', @level1name = 'Address'; +GO +``` + +2. DENY VIEW DEFINITION +``` +DENY VIEW DEFINITION ON Schema.Table TO UserName; +``` + +Now UserName won’t be able to see Table in `Object Explorer`. +In Fact, they won’t be able to see the table in `sys.tables` or `INFORMATION_SCHEMA.TABLES` + +`VIEW DEFINITION` is the ability to see the definition of the object. +In the case of SPs the code, same with Views and in the case of Tables it’s the columns definitions etc. + + + +## UnDock Tabs and Windows for Multi Monitor Support +From SSMS 2012 and onwards, you can easily dock/undock the query tabs as well as different object windows inside SSMS to make better use of the screen real estate and multiple monitors you have. + +![UnDock Tabs and Windows for Multi Monitor Support](/SSMS/SSMS_Tips/undock_tabs_and_windows_for_multi_monitor_support.gif) + + + +## RegEx-Based Finding and Replacing of Text in SSMS +So often, one sees developers doing repetitive coding in SSMS or Visual Studio that would be much quicker and easier by using the built-in Regular-Expression-based Find/Replace functionality. +It is understandable, since the syntax is odd and some features are missing, but it is still well-worth knowing about. + +More details and examples you can find here [RegEx-Based Finding and Replacing of Text in SSMS]. + +My favorite regex: replace `\t` on `\n, `. It useful in many cases when you have column names copied from, for example, Excel and need quickly get sql query. + + + +## Changing what SSMS opens on startup +The more interesting way to look at this shortcut is to check the various options available with SSMS command line parameters. +To check them, use the following command: +``` +C:\> ssms /? +``` + +![SSMS command line parameters](/SSMS/SSMS_Tips/24_SSMS_command-line_parameters.png) + +You can customize SSMS startup behavior in `Tools -> Options -> Environment -> Startup` and hide system objects in Object Explore: + +![Changing what SSMS opens on startup](/SSMS/SSMS_Tips/24_changing_what_ssms_opens_on_startup.gif) + +Also you can disable the splash screen - this cuts the time it takes SSMS to load for versions before SSMS 17. +Right click your shortcut to SSMS and select properties. +Enter the text `-nosplash` right after the ending quote in the path: + +![SSMS link nosplash option](/SSMS/SSMS_Tips/24_changing_what_ssms_opens_on_startup_nosplash.png) + +It is useful to create a solution of commonly used SQL scripts to always load at start-up. +1. Display the Solution Explorer by pressing `Ctrl+Alt+L` or clicking `View -> Solution Explorer`. +2. Then right click the `Solution "Solution1" (0 projects)` text and select `Add -> New Project`. +3. Use the default `SQL Server Scripts` template and give your solution a clever name. +4. Rename all of your SQL Code Snippets so the extension is .SQL. Drag them into the queries folder within the Solution Explorer. +5. Open Windows explorer and browse to the location of your solution. Copy file location address to your clipboard. +Go back to your SSMS shortcut properties and add within double quotes the location and file name of your solution before the "-nosplash". + +This is the complete text of shortcut properties: + +``` +"C:\Program Files (x86)\Microsoft SQL Server\140\Tools\Binn\ManagementStudio\Ssms.exe" "C:\Users\taranov\Documents\SQL Server Management Studio\Projects\MySQLServerScripts.ssmssln" -nosplash +``` + +![Create a solution of commonly used SQL scripts](/SSMS/SSMS_Tips/24_create_solution_commonly_used_sql_scripts.gif) + + + +## Modifying New Query Template +You can modified New Query template for any instance SQL Server: +``` +C:\Program Files (x86)\Microsoft SQL Server\[140|130|120|110]\Tools\Binn\ ManagementStudio\SqlWorkbenchProjectItems\Sql\SQLFile.sql +``` + +For example, you can add begin transaction statement for preventing ups queries: +```sql +BEGIN TRANSACTION; + + +-- COMMIT TRANSACTION; +-- ROLLBACK TRANSACTION; +``` + +Thanks for this tip Aaron Bertrand: [T-SQL Tuesday #92: Lessons Learned the Hard Way] + + + +## Query Execution Options +More detailed article here: [Knowing the Options] + +The options represent the SET values of the current session. +`SET options` can affect how the query is execute thus having a different execution plan. +You can find these options in two places within SSMS under `Tools -> Options -> Query Execution -> SQL Server -> Advanced`: + +![Query Execution Options Advanced](/SSMS/SSMS_Tips/25_query_execution_options.png) + +As well as `Tools -> Options -> Query Execution -> SQL Server -> ANSI`: + +![Query Execution Options ANSI](/SSMS/SSMS_Tips/25_query_execution_options_ansi.png) + +Using the interface to check what is set can get tiresome. Instead, you can use the system function `@@OPTIONS`. +Each option shown above has a BIT value for all 15 options indicating whether or not it is enabled. + +`@@OPTIONS` takes the binary representation and does a BITWISE operation on it to produce an integer value based on the sum of which BITS are enabled. + +Default value for `SELECT @@OPTIONS` is **5496**. +Let’s assume for a moment that the only two options that are enabled on my machine are ANSI_PADDING and ANSI_WARNINGS. +The values for these two options are 8 and 16, respectively speaking. The sum of the two is 24. + +Microsoft docs: https://docs.microsoft.com/en-us/sql/database-engine/configure-windows/configure-the-user-options-server-configuration-option + +| Value | Configuration | Description | +|------:|---------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| +| 1 | [DISABLE_DEF_CNST_CHK] | **Deprecated** Controls interim or deferred constraint checking. | +| 2 | [IMPLICIT_TRANSACTIONS] | For dblib network library connections, controls whether a transaction is started implicitly when a statement is executed. The IMPLICIT_TRANSACTIONS setting has no effect on ODBC or OLEDB connections. | +| 4 | [CURSOR_CLOSE_ON_COMMIT] | Controls behavior of cursors after a commit operation has been performed. | +| 8 | [ANSI_WARNINGS] | Controls truncation and NULL in aggregate warnings. | +| 16 | [ANSI_PADDING] | Controls padding of fixed-length variables. | +| 32 | [ANSI_NULLS] | Controls NULL handling when using equality operators. | +| 64 | [ARITHABORT] | Terminates a query when an overflow or divide-by-zero error occurs during query execution. | +| 128 | [ARITHIGNORE] | Returns NULL when an overflow or divide-by-zero error occurs during a query. | +| 256 | [QUOTED_IDENTIFIER] | Differentiates between single and double quotation marks when evaluating an expression. | +| 512 | [NOCOUNT] | Turns off the message returned at the end of each statement that states how many rows were affected. | +| 1024 | [ANSI_NULL_DFLT_ON] | Alters the session's behavior to use ANSI compatibility for nullability. New columns defined without explicit nullability are defined to allow nulls. | +| 2048 | [ANSI_NULL_DFLT_OFF] | Alters the session's behavior not to use ANSI compatibility for nullability. New columns defined without explicit nullability do not allow nulls. | +| 4096 | [CONCAT_NULL_YIELDS_NULL] | Returns NULL when concatenating a NULL value with a string. | +| 8192 | [NUMERIC_ROUNDABORT] | Generates an error when a loss of precision occurs in an expression. | +| 16384 | [XACT_ABORT] | Rolls back a transaction if a Transact-SQL statement raises a run-time error. | + +[DISABLE_DEF_CNST_CHK]:https://technet.microsoft.com/en-us/library/ms175103 +[IMPLICIT_TRANSACTIONS]:https://docs.microsoft.com/en-us/sql/t-sql/statements/set-implicit-transactions-transact-sql +[CURSOR_CLOSE_ON_COMMIT]:https://docs.microsoft.com/en-us/sql/t-sql/statements/set-cursor-close-on-commit-transact-sql +[ANSI_WARNINGS]:https://docs.microsoft.com/en-us/sql/t-sql/statements/set-ansi-warnings-transact-sql +[ANSI_PADDING]:https://docs.microsoft.com/en-us/sql/t-sql/statements/set-ansi-padding-transact-sql +[ANSI_NULLS]:https://docs.microsoft.com/en-us/sql/t-sql/statements/set-ansi-nulls-transact-sql +[ARITHABORT]:https://docs.microsoft.com/en-us/sql/t-sql/statements/set-arithabort-transact-sql +[ARITHIGNORE]:https://docs.microsoft.com/en-us/sql/t-sql/statements/set-arithignore-transact-sql +[QUOTED_IDENTIFIER]:https://docs.microsoft.com/en-us/sql/t-sql/statements/set-quoted-identifier-transact-sql +[NOCOUNT]:https://docs.microsoft.com/en-us/sql/t-sql/statements/set-nocount-transact-sql +[ANSI_NULL_DFLT_ON]:https://docs.microsoft.com/en-us/sql/t-sql/statements/set-ansi-null-dflt-on-transact-sql +[ANSI_NULL_DFLT_OFF]:https://docs.microsoft.com/en-us/sql/t-sql/statements/set-concat-null-yields-null-transact-sql +[CONCAT_NULL_YIELDS_NULL]:https://docs.microsoft.com/en-us/sql/t-sql/statements/set-concat-null-yields-null-transact-sql +[NUMERIC_ROUNDABORT]:https://docs.microsoft.com/en-us/sql/t-sql/statements/set-numeric-roundabort-transact-sql +[XACT_ABORT]:https://docs.microsoft.com/en-us/sql/t-sql/statements/set-xact-abort-transact-sql + +```sql +/*************************************************************** + Author: John Morehouse + Summary: This script display what SET options are enabled for the current session. + + You may alter this code for your own purposes. You may republish altered code as long as you give due credit. + + THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE. +***************************************************************/ +SELECT 'DISABLE_DEF_CNST_CHK' AS 'Option', CASE @@options & 1 WHEN 0 THEN 0 ELSE 1 END AS 'Enabled/Disabled' UNION ALL +SELECT 'IMPLICIT_TRANSACTIONS' AS 'Option', CASE @@options & 2 WHEN 0 THEN 0 ELSE 1 END AS 'Enabled/Disabled' UNION ALL +SELECT 'CURSOR_CLOSE_ON_COMMIT' AS 'Option', CASE @@options & 4 WHEN 0 THEN 0 ELSE 1 END AS 'Enabled/Disabled' UNION ALL +SELECT 'ANSI_WARNINGS' AS 'Option', CASE @@options & 8 WHEN 0 THEN 0 ELSE 1 END AS 'Enabled/Disabled' UNION ALL +SELECT 'ANSI_PADDING' AS 'Option', CASE @@options & 16 WHEN 0 THEN 0 ELSE 1 END AS 'Enabled/Disabled' UNION ALL +SELECT 'ANSI_NULLS' AS 'Option', CASE @@options & 32 WHEN 0 THEN 0 ELSE 1 END AS 'Enabled/Disabled' UNION ALL +SELECT 'ARITHABORT' AS 'Option', CASE @@options & 64 WHEN 0 THEN 0 ELSE 1 END AS 'Enabled/Disabled' UNION ALL +SELECT 'ARITHIGNORE' AS 'Option', CASE @@options & 128 WHEN 0 THEN 0 ELSE 1 END AS 'Enabled/Disabled' UNION ALL +SELECT 'QUOTED_IDENTIFIER' AS 'Option', CASE @@options & 256 WHEN 0 THEN 0 ELSE 1 END AS 'Enabled/Disabled' UNION ALL +SELECT 'NOCOUNT' AS 'Option', CASE @@options & 512 WHEN 0 THEN 0 ELSE 1 END AS 'Enabled/Disabled' UNION ALL +SELECT 'ANSI_NULL_DFLT_ON' AS 'Option', CASE @@options & 1024 WHEN 0 THEN 0 ELSE 1 END AS 'Enabled/Disabled' UNION ALL +SELECT 'ANSI_NULL_DFLT_OFF' AS 'Option', CASE @@options & 2048 WHEN 0 THEN 0 ELSE 1 END AS 'Enabled/Disabled' UNION ALL +SELECT 'CONCAT_NULL_YIELDS_NULL' AS 'Option', CASE @@options & 4096 WHEN 0 THEN 0 ELSE 1 END AS 'Enabled/Disabled' UNION ALL +SELECT 'NUMERIC_ROUNDABORT' AS 'Option', CASE @@options & 8192 WHEN 0 THEN 0 ELSE 1 END AS 'Enabled/Disabled' UNION ALL +SELECT 'XACT_ABORT' AS 'Option', CASE @@options & 16384 WHEN 0 THEN 0 ELSE 1 END AS 'Enabled/Disabled'; +``` + + + +## SQL Server Diagnostics Extension + +Analyze Dumps – Customers using this extension will be able to debug and self-resolve memory dump issues from their SQL Server instances and receive recommended Knowledge Base (KB) article(s) from Microsoft, which may be applicable for the fix. +The memory dumps are stored in a secured and compliant manner as governed by the [Microsoft Privacy Policy](https://privacy.microsoft.com/en-us/privacystatement). + +For example, Joe, a DBA from Contoso, Ltd., finds that SQL Server has generated a memory dump while running a workload, and he would like to debug the issue. +Using this feature, John can upload the dump and receive recommended KB articles from Microsoft, which can help him fix the issue. + +![SQL Server Diagnostics Extension](/SSMS/SSMS_Tips/26_sql_server_diagnostics_extension.png) + +More details here: [SQL Server Diagnostics Extension for SSMS] and [SQL Server Diagnostics: New "Analyze Dumps" feature] + + + +## Connect to SQL Servers in another domain using Windows Authentication +You may find that you need to connect remotely to a SQL Server that is in another domain. +This is a problem when SQL authentication is not an option, because Windows machine is in its own domain; Management Studio cannot directly override the local Windows credentials and pass the credentials for a remote domain user. + +### Solution 1: runas + +```bat +runas /netonly /user:domain\username "c:\path\ssms.exe" +```` + +At this point, you are prompted for the password for the remote user and, once provided, you are told that it is attempting to run the program as that user. + +Also you can create shortcut: Right-click the desktop and choose `New > Shortcut`. Then enter the same information as above in the command line: +![Connect to SQL Servers in another domain using Windows Authentication with Shortcut](/SSMS/SSMS_Tips/28_connect_to_sql_servers_in_another_domain_using_windows_authentication_with_shortcut.gif) + +Now you can double-click the shortcut and, after simply providing the remote password, it will launch an instance of Management Studio that will use those remote credentials every time you use Windows Authentication and try to connect to a remote server. + +### Solution 2: Credential Manager +Another method you can use to connect to remote domains using Windows Authentication is to use the Credential Manager built into Windows. +This can be a little tricky to setup, especially if you are connecting over a VPN. + +The part that is tricky is ensuring that name resolution matches exactly. +The Windows machine needs to identify the remote server by IP or fully-qualified domain name (FQDN), and may need to explicitly specify the port. +Added the remote server names to `c:\Windows\System32\drivers\etc\hosts` file, and then ran `ipconfig /dnsflush`. + +Once you are sure you have the right FQDN (make sure you can ping it by name, or better yet, telnet to the server name on the SQL Server port (usually 1433)), +go to `Control Panel > Credential Manager, choose Windows Credentials, and Add a Windows Credential`. +Then specify the specific server name (potentially you may need `server:port notation`), the domain user (including the domain name), the password, and click OK: +![Connect to SQL Servers in another domain using Windows Authentication with Credential Manager](/SSMS/SSMS_Tips/28_connect_to_sql_servers_in_another_domain_using_windows_authentication_with_credential.gif) + +Now, when you connect from Management Studio, make sure you use the exact same server name as the one you entered in the credential, including the port number (only now, use a comma instead of colon if specifying the port number: server,port). Like with the runas /netonly solution, it will *look* like you are connecting using your local Windows credentials, but - as long as the credential store doesn't have any issues in matching the server name - those really are the remote credentials that are being passed under the covers. + +More details here: [Connect to SQL Servers in another domain using Windows Authentication] + + + +## SSMS Default Reports +By right-clicking on the SQL Server instance and navigating to `Reports > Standard Reports`, you can see the predefined SSMS reports: + +![SSMS_Server_Default_Reports](/SSMS/SSMS_Tips/29_SSMS_Server_Default_Reports.png) + +You can run default reports database: +![SSMS_Database_Default_Reports](/SSMS/SSMS_Tips/29_SSMS_Database_Default_Reports.png) + +Useful another reports information: + - [New in SSMS: Performance Dashboard built-in](https://blogs.msdn.microsoft.com/sql_server_team/new-in-ssms-performance-dashboard-built-in/) + - [New in SSMS – Always On Availability Group Latency Reports] + + + +## Live Query Statistics +SQL Server Management Studio provides the ability to view the live execution plan of an active query. +This live query plan provides real-time insights into the query execution process as the controls flow from one query plan operator to another. +The live query plan displays the overall query progress and operator-level run-time execution statistics such as the number of rows produced, elapsed time, operator progress, etc. +Because this data is available in real time without needing to wait for the query to complete, these execution statistics are extremely useful for debugging query performance issues. +This feature is available beginning with SQL Server 2016 Management Studio, however it can work with SQL Server 2014. + +More details here: [Live Query Statistics] + +Warning: This feature is primarily intended for troubleshooting purposes. +Using this feature can moderately slow the overall query performance. +This feature can be used with the [Transact-SQL Debugger](https://docs.microsoft.com/en-us/sql/relational-databases/scripting/configure-firewall-rules-before-running-the-tsql-debugger). + + + +## Searching in Showplan +In SSMS 17.2, appear the ability to search table name, index name or column name and more in graphical showplan. + just use `CTRL+F` to start a search in graphical showplan (or right-click on a blank area of the plan, and in the context menu click on Find Node option), and you can quickly see exactly where node id 30 is. +More details here: [New in SSMS: Searching in Showplan] + + + +## Object Explore Details +To bring up the Object Explorer Details pane, use the `F7` shortcut or it can be accessed from `Toolbar -> View -> Object -> Explorer Details`. + +![SSMS_Database_Default_Reports](/SSMS/SSMS_Tips/32_object_explore_details_01.png) + +![SSMS_Database_Default_Reports](/SSMS/SSMS_Tips/32_object_explore_details_02.png) + +You can customize display field hide or unhide it: +![SSMS_Database_Default_Reports](/SSMS/SSMS_Tips/32_object_explore_details_03.png) + +You can searched for the keyword `%Country%` and using `%` as a wildcard character. +This tells SQL Server Management Studio to display all the objects that have the word `Country` in their name. + + + +## Working with Azure SQL +For SSMS 17.2 and above you can enable Multi-Factor Authentication in Azure SQL Database, more details here: +[Configure Multi-Factor Authentication in Azure SQL Database] + + + +## Using Extended Events and Profiler in SSMS + +Full instruction here: [EXTENDED EVENTS AND PROFILER: XE PROFILER] + + + +## Vulnerability Assessment in SSMS +You will need version 17.4 for the Vulnerability Assessment feature. Right-click to any database to start a scan. + +![SSMS_Database_Default_Reports](/SSMS/SSMS_Tips/SQL_Vulnerability_Assessment.gif) + +1. Run a scan +2. Specify where scan will be saved +3. View the report +4. Analyze the results and resolve issues +5. Set your Baseline +6. Run a new scan to see your customized tracking report +7. Open a previously run scan + +More info here: [SQL Vulnerability Assessment Available in SSMS] and [Vulnerability Assessment features](https://docs.microsoft.com/en-us/sql/relational-databases/security/sql-vulnerability-assessment) + + + +## Import Flat File to SQL Wizard +You will need version 17.3 or later. + +Detailed article here: [Import Flat File to SQL Wizard] + +Import Flat File Wizard is a simple way to copy data from a flat file (.csv, .txt) to a destination. + +This wizard was created to improve the current import experience leveraging an intelligent framework known as Program Synthesis using Examples ([PROSE](https://microsoft.github.io/prose/)). +For a user without specialized domain knowledge, importing data can often be a complex, error prone, and tedious task. This wizard streamlines the import process as simple as selecting an input file and unique table name, and the PROSE framework handles the rest. +PROSE analyzes data patterns in your input file to infer column names, types, delimiters, and more. This framework learns the structure of the file and does all of the hard work so our users don't have to. + + + +Reference: + - [Free Course: SQL Server Management Studio Shortcuts & Secrets](https://sqlworkbooks.com/course/sql-server-management-studio-shortcuts-secrets/) (by Kendra Little) + - [SSMS Tips: Templates and Control+Shift+M] (by Kendra Little) + - [Fixing Hot-Key issue in SSMS in five steps](http://slavasql.blogspot.ru/2017/02/fixing-hot-key-issue-in-ssms-in-five.html) (by Slava Murygin) + - [SSMS Tips and Tricks](http://www.ssmstipsandtricks.com/) (by Latish Sehgal) + - [Do you need more than STATISTICS IO for Query Tuning?](https://www.sqlpassion.at/archive/2017/03/27/do-you-need-more-than-statistics-io-for-query-tuning/) (by Klaus Aschenbrenner) + - [Top 10 SQL Server Management Studio (SSMS) Tips and Tricks](http://www.sqlmatters.com/Articles/Top%2010%20SQL%20Server%20Management%20Studio%20(SSMS)%20Tips%20and%20Tricks.aspx) (by SQLMatters) + - [Keyboard shortcut to close a query tab in SSMS](https://www.am2.co/2017/01/close-ssms-tab/) (by Andy Mallon) + - [SQL Server Management Studio Tips](https://www.mssqltips.com/sql-server-tip-category/52/sql-server-management-studio/) (by MSSQLTips) + - [Generating Charts and Drawings in SQL Server Management Studio] (by Anthony Zanevsky, Andrew Zanevsky and Katrin Zanevsky) + - [Try and try again: not always a good idea (at least not for SSMS!)](https://blogs.msdn.microsoft.com/sqlcat/2017/04/06/try-and-try-again-not-always-a-good-idea-at-least-not-for-ssms/) (by Arvind Shyamsundar) + - [SSMS Tips: Copy Full Path](https://sqlstudies.com/2017/04/24/ssms-tips-copy-full-path/) (by Kenneth Fisher) + - [Hiding tables in SSMS Object Explorer](https://sqlstudies.com/2017/04/03/hiding-tables-in-ssms-object-explorer-using-extended-properties/) (by Kenneth Fisher) + - [Changing what SSMS opens on startup](https://sqlstudies.com/2017/02/01/changing-what-ssms-opens-on-startup/) (by Kenneth Fisher) + - [Presenting: Presentation Mode!](http://www.williamdurkin.com/2017/03/presenting-presentation-mode/) (by William Durkin) + - [RegEx-Based Finding and Replacing of Text in SSMS] (by Phil Factor) + - [SQL Server Management Studio (SSMS) Tips and Tricks] (by Mike Milligan) + - [Knowing the Options] (by John Morehouse) + - [How to Enable/Trace the Query Thread Profile Extended Event in SQL Sever 2014+](https://sqlworkbooks.com/2017/06/how-to-enabletrace-the-query-thread-profile-extended-event-in-sql-sever-2014/) (by Kendra Little) + - [SQL Server Diagnostics Extension for SSMS] (by Microsoft) + - [T-SQL Tuesday #92: Lessons Learned the Hard Way] (by Aaron Bertrand) + - [Connect to SQL Servers in another domain using Windows Authentication] (by Aaron Bertrand) + - [New in SSMS: Searching in Showplan] (by Pedro Lopes) + - [Live Query Statistics] + - [Configure Multi-Factor Authentication in Azure SQL Database] (by Daniel Calbimonte) + - [What’s new in SQL Server Management Studio 17.2; Authentication methods, scripting options and more] (by Ahmad Yaseen) + - [CTRL+R does not hide the Query Result window in SSMS] + - [SSMS Tip #1: Annotations and Map Mode for Vertical Scroll Bar] (by Solomon Rutzky) + - [SQL Vulnerability Assessment Available in SSMS] (by Thomas LaRock) + - [SSMS Tips and Tricks free ebook](http://ssmsbook.sqldownunder.com) (by SDU Insiders) + +[Cycle through clipboard ring]:http://www.ssmstipsandtricks.com/blog/2014/05/05/cycle-through-clipboard-ring/ +[SSMS Tips: Templates and Control+Shift+M]:http://littlekendra.com/2016/08/09/ssms-tips-templates-and-controlshiftm/ +[Generating Charts and Drawings in SQL Server Management Studio]:http://sqlmag.com/t-sql/generating-charts-and-drawings-sql-server-management-studio +[View R Plots from within SQL Server Management Studio]:http://www.sqlservercentral.com/articles/R+Services/156107/ +[RegEx-Based Finding and Replacing of Text in SSMS]:https://www.simple-talk.com/sql/sql-training/regex-based-finding-and-replacing-of-text-in-ssms/ +[SQL Server Management Studio (SSMS) Tips and Tricks]:http://www.bidn.com/blogs/MMilligan/bidn-blog/3326/sql-server-management-studio-ssms-tips-and-tricks +[Knowing the Options]:http://sqlrus.com/2017/05/knowing-the-options/ +[SQL Server Diagnostics Extension for SSMS]:https://blogs.msdn.microsoft.com/sql_server_team/sql-server-diagnostics-preview/ +[T-SQL Tuesday #92: Lessons Learned the Hard Way]:https://blogs.sentryone.com/aaronbertrand/t-sql-tuesday-92-lessons-learned-hard-way/ +[SQL Server Diagnostics: New "Analyze Dumps" feature]:https://sqlworkbooks.com/2017/07/sql-server-diagnostics-new-analyze-dumps-feature/ +[Connect to SQL Servers in another domain using Windows Authentication]:https://www.mssqltips.com/sqlservertip/3250/connect-to-sql-servers-in-another-domain-using-windows-authentication/ +[New in SSMS: Searching in Showplan]:https://blogs.msdn.microsoft.com/sql_server_team/new-in-ssms-searching-in-showplan/ +[Live Query Statistics]:https://docs.microsoft.com/en-us/sql/relational-databases/performance/live-query-statistics +[Configure Multi-Factor Authentication in Azure SQL Database]:https://www.sqlshack.com/configure-multi-factor-authentication-azure-sql-database/ +[What’s new in SQL Server Management Studio 17.2; Authentication methods, scripting options and more]:https://www.sqlshack.com/whats-new-sql-server-management-studio-17-2-authentication-methods-scripting-options/ +[CTRL+R does not hide the Query Result window in SSMS]:https://stackoverflow.com/questions/17068661/ctrlr-does-not-hide-the-query-result-window-in-ssms +[SSMS Tip #1: Annotations and Map Mode for Vertical Scroll Bar]:https://sqlquantumleap.com/2017/07/17/ssms-tip-1-annotations-and-map-mode-for-vertical-scroll-bar/ +[EXTENDED EVENTS AND PROFILER: XE PROFILER]:https://www.scarydba.com/2017/11/07/extended-events-profiler-xe-profiler/ +[New in SSMS – Always On Availability Group Latency Reports]:https://blogs.msdn.microsoft.com/sql_server_team/new-in-ssms-always-on-availability-group-latency-reports/ +[SQL Vulnerability Assessment Available in SSMS]:https://thomaslarock.com/2017/12/sql-vulnerability-assessment-available-in-ssms/ +[Import Flat File to SQL Wizard]:https://docs.microsoft.com/en-us/sql/relational-databases/import-export/import-flat-file-wizard +[SSMS Tips by Wayne Sheffield]:http://blog.waynesheffield.com/wayne/archive/tag/ssms-tips/ +[SQL Management Studio, Trusted Connections, and Remote User accounts]:https://weblogs.asp.net/miked/sql-management-studio-trusted-connections-and-remote-user-accounts diff --git a/SSMS/SSMS_Tips/24_SSMS_command-line_parameters.png b/SSMS/SSMS_Tips/24_SSMS_command-line_parameters.png new file mode 100644 index 00000000..5b04e8a2 Binary files /dev/null and b/SSMS/SSMS_Tips/24_SSMS_command-line_parameters.png differ diff --git a/SSMS/SSMS_Tips/24_changing_what_ssms_opens_on_startup.gif b/SSMS/SSMS_Tips/24_changing_what_ssms_opens_on_startup.gif new file mode 100644 index 00000000..4906027e Binary files /dev/null and b/SSMS/SSMS_Tips/24_changing_what_ssms_opens_on_startup.gif differ diff --git a/SSMS/SSMS_Tips/24_changing_what_ssms_opens_on_startup_nosplash.png b/SSMS/SSMS_Tips/24_changing_what_ssms_opens_on_startup_nosplash.png new file mode 100644 index 00000000..f9731c84 Binary files /dev/null and b/SSMS/SSMS_Tips/24_changing_what_ssms_opens_on_startup_nosplash.png differ diff --git a/SSMS/SSMS_Tips/24_create_solution_commonly_used_sql_scripts.gif b/SSMS/SSMS_Tips/24_create_solution_commonly_used_sql_scripts.gif new file mode 100644 index 00000000..7e6b701a Binary files /dev/null and b/SSMS/SSMS_Tips/24_create_solution_commonly_used_sql_scripts.gif differ diff --git a/SSMS/SSMS_Tips/25_query_execution_options.png b/SSMS/SSMS_Tips/25_query_execution_options.png new file mode 100644 index 00000000..c0e2ce52 Binary files /dev/null and b/SSMS/SSMS_Tips/25_query_execution_options.png differ diff --git a/SSMS/SSMS_Tips/25_query_execution_options_ansi.png b/SSMS/SSMS_Tips/25_query_execution_options_ansi.png new file mode 100644 index 00000000..9e2bda7d Binary files /dev/null and b/SSMS/SSMS_Tips/25_query_execution_options_ansi.png differ diff --git a/SSMS/SSMS_Tips/26_sql_server_diagnostics_extension.png b/SSMS/SSMS_Tips/26_sql_server_diagnostics_extension.png new file mode 100644 index 00000000..755fe13c Binary files /dev/null and b/SSMS/SSMS_Tips/26_sql_server_diagnostics_extension.png differ diff --git a/SSMS/SSMS_Tips/28_connect_to_sql_servers_in_another_domain_using_windows_authentication_with_credential.gif b/SSMS/SSMS_Tips/28_connect_to_sql_servers_in_another_domain_using_windows_authentication_with_credential.gif new file mode 100644 index 00000000..b19c4157 Binary files /dev/null and b/SSMS/SSMS_Tips/28_connect_to_sql_servers_in_another_domain_using_windows_authentication_with_credential.gif differ diff --git a/SSMS/SSMS_Tips/28_connect_to_sql_servers_in_another_domain_using_windows_authentication_with_shortcut.gif b/SSMS/SSMS_Tips/28_connect_to_sql_servers_in_another_domain_using_windows_authentication_with_shortcut.gif new file mode 100644 index 00000000..bb6732bf Binary files /dev/null and b/SSMS/SSMS_Tips/28_connect_to_sql_servers_in_another_domain_using_windows_authentication_with_shortcut.gif differ diff --git a/SSMS/SSMS_Tips/29_SSMS_Database_Default_Reports.png b/SSMS/SSMS_Tips/29_SSMS_Database_Default_Reports.png new file mode 100644 index 00000000..ed6fcaf5 Binary files /dev/null and b/SSMS/SSMS_Tips/29_SSMS_Database_Default_Reports.png differ diff --git a/SSMS/SSMS_Tips/29_SSMS_Server_Default_Reports.png b/SSMS/SSMS_Tips/29_SSMS_Server_Default_Reports.png new file mode 100644 index 00000000..b1e6e236 Binary files /dev/null and b/SSMS/SSMS_Tips/29_SSMS_Server_Default_Reports.png differ diff --git a/SSMS/SSMS_Tips/32_object_explore_details_01.png b/SSMS/SSMS_Tips/32_object_explore_details_01.png new file mode 100644 index 00000000..0045c559 Binary files /dev/null and b/SSMS/SSMS_Tips/32_object_explore_details_01.png differ diff --git a/SSMS/SSMS_Tips/32_object_explore_details_02.png b/SSMS/SSMS_Tips/32_object_explore_details_02.png new file mode 100644 index 00000000..8e03adf5 Binary files /dev/null and b/SSMS/SSMS_Tips/32_object_explore_details_02.png differ diff --git a/SSMS/SSMS_Tips/32_object_explore_details_03.png b/SSMS/SSMS_Tips/32_object_explore_details_03.png new file mode 100644 index 00000000..e20d1d95 Binary files /dev/null and b/SSMS/SSMS_Tips/32_object_explore_details_03.png differ diff --git a/SSMS/SSMS_Tips/README.md b/SSMS/SSMS_Tips/README.md new file mode 100644 index 00000000..93ce4f22 --- /dev/null +++ b/SSMS/SSMS_Tips/README.md @@ -0,0 +1,3 @@ +# Images for SSMS Tips + +Latest version here: https://github.com/ktaranov/sqlserver-kit/blob/master/SSMS/SSMS_Tips.md diff --git a/SSMS/SSMS_Tips/SQL_Vulnerability_Assessment.gif b/SSMS/SSMS_Tips/SQL_Vulnerability_Assessment.gif new file mode 100644 index 00000000..35524c32 Binary files /dev/null and b/SSMS/SSMS_Tips/SQL_Vulnerability_Assessment.gif differ diff --git a/SSMS/SSMS_Tips/additional_connection_parameters.png b/SSMS/SSMS_Tips/additional_connection_parameters.png new file mode 100644 index 00000000..5e47e5d2 Binary files /dev/null and b/SSMS/SSMS_Tips/additional_connection_parameters.png differ diff --git a/SSMS/SSMS_Tips/disable_copy_of_empty_text.png b/SSMS/SSMS_Tips/disable_copy_of_empty_text.png new file mode 100644 index 00000000..9748b435 Binary files /dev/null and b/SSMS/SSMS_Tips/disable_copy_of_empty_text.png differ diff --git a/SSMS/SSMS_Tips/import_and_export_settings.png b/SSMS/SSMS_Tips/import_and_export_settings.png new file mode 100644 index 00000000..b4566511 Binary files /dev/null and b/SSMS/SSMS_Tips/import_and_export_settings.png differ diff --git a/SSMS/SSMS_Tips/keyboard_shortcuts_for_stored_procedures.png b/SSMS/SSMS_Tips/keyboard_shortcuts_for_stored_procedures.png new file mode 100644 index 00000000..73d1bade Binary files /dev/null and b/SSMS/SSMS_Tips/keyboard_shortcuts_for_stored_procedures.png differ diff --git a/SSMS/SSMS_Tips/splitting_the_query_window.gif b/SSMS/SSMS_Tips/splitting_the_query_window.gif new file mode 100644 index 00000000..cd77307c Binary files /dev/null and b/SSMS/SSMS_Tips/splitting_the_query_window.gif differ diff --git a/SSMS/SSMS_Tips/ssms_script_objects.gif b/SSMS/SSMS_Tips/ssms_script_objects.gif new file mode 100644 index 00000000..5cda22e9 Binary files /dev/null and b/SSMS/SSMS_Tips/ssms_script_objects.gif differ diff --git a/SSMS/SSMS_Tips/undock_tabs_and_windows_for_multi_monitor_support.gif b/SSMS/SSMS_Tips/undock_tabs_and_windows_for_multi_monitor_support.gif new file mode 100644 index 00000000..74384db7 Binary files /dev/null and b/SSMS/SSMS_Tips/undock_tabs_and_windows_for_multi_monitor_support.gif differ diff --git a/SSMS/SSMS_Tips/working_with_tabs_headers.png b/SSMS/SSMS_Tips/working_with_tabs_headers.png new file mode 100644 index 00000000..1ce93eff Binary files /dev/null and b/SSMS/SSMS_Tips/working_with_tabs_headers.png differ diff --git a/SSMS/SSMS_vssettings/AB.DarkScheme.LargeFonts.vssettings b/SSMS/SSMS_vssettings/AB.DarkScheme.LargeFonts.vssettings new file mode 100644 index 00000000..7a2faebf --- /dev/null +++ b/SSMS/SSMS_vssettings/AB.DarkScheme.LargeFonts.vssettings @@ -0,0 +1,36 @@ + + + + + + + + 2 + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/SSMS/SSMS_vssettings/AB.DarkScheme.NormalFonts.vssettings b/SSMS/SSMS_vssettings/AB.DarkScheme.NormalFonts.vssettings new file mode 100644 index 00000000..4121b8ae --- /dev/null +++ b/SSMS/SSMS_vssettings/AB.DarkScheme.NormalFonts.vssettings @@ -0,0 +1,36 @@ + + + + + + + + 2 + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/SSMS/SSMS_vssettings/NewSettings_17.2(14.0.17177).vssettings b/SSMS/SSMS_vssettings/NewSettings_17.2(14.0.17177).vssettings new file mode 100644 index 00000000..bc672baf --- /dev/null +++ b/SSMS/SSMS_vssettings/NewSettings_17.2(14.0.17177).vssettings @@ -0,0 +1,6 @@ +truefalsetruefalsetruefalsetruetruetrue00truetruetruefalse56553510truetruetruetruefalsetrue10false%vsspv_settings_directory%\NewSettings.vssettings%vsspv_user_appdata%\Documents\SQL Server Management Studiotruetrue44true%vsspv_visualstudio_dir%\Templates\ItemTemplatesfalsetrue101%vsspv_visualstudio_dir%\Templates\ProjectTemplatestrue8truefalseHACK:2TODO:2UNDONE:2UnresolvedMergeConflict:3falsefalse + http://www.microsoft.com/sql + 1 + C:\Windows\system32\notepad.exe + http://www.bing.com + truetrue0truetruefalsetruefalsetruetrue4truetruetruetrue1truetruetruetruetruetruetruefalsetruetruetrue83truefalse4truetruetruetrue4truetruetruetrue1truetruetruetruetruetruetruefalsetruetruetrue83truefalse4truetruetruetrue4true2truefalsefalsetruetruetruefalsefalse4truetrue110101111010111110001001111000100110111100000016757736047360021111011100005000150001500100010001000200020005000100001000025010005001251000110011111111110000111001001100000000101204850900010011100000101001101010111http://referencesource.microsoft.com/symbolshttp://msdl.microsoft.com/download/symbolsFunction: $FUNCTION, Thread: $TID $TNAMEtruefalsetruetruetruetruefalsefalsefalsetruefalsefalsefalsefalsetruetruetruetruefalsefalsetruetruefalsetruefalse1truetruetrue{7E5BB8D2-57E5-4FA9-9542-3870395C16A1}True<ExtensionRepositoryConfigList Capacity="0" xmlns="clr-namespace:Microsoft.VisualStudio.ExtensionManager;assembly=Microsoft.VisualStudio.ExtensionManager.Implementation" />True00MatchCase=1 WholeWord=1 Hidden=0 Up=0 Selection=0 Block=0 KeepCase=0 SubFolders=0 KeepOpen=0 NameOnly=0 Append=0 Plain Document FindMatchCase=0 WholeWord=0 Hidden=0 Up=0 Selection=0 Block=0 KeepCase=0 SubFolders=1 KeepOpen=0 NameOnly=0 Append=0 Plain Files FindMatchCase=1 WholeWord=1 Hidden=0 Up=0 Selection=0 Block=0 KeepCase=0 SubFolders=0 KeepOpen=0 NameOnly=0 Append=0 Plain Document Find11111111111111Regex00falsetruefalse2{B1BA9461-FC54-45B3-A484-CB6DD0B95C94}02falsetruefalsefalsefalsefalsefalsetruefalsefalsefalsetruefalsefalsefalsefalsetruetruetruetruefalsefalsetruetruefalsetruefalse{B1BA9461-FC54-45B3-A484-CB6DD0B95C94}0false01falsefalsefalse1{00000000-0000-0000-0000-000000000000}false100007Design|NoToolWin|Debug|Design-FullScreen14.0.0.0Ctrl+E, Ctrl+RCtrl+E, Ctrl+FCtrl+E, Ctrl+GCtrl+E, Ctrl+NCtrl+E, Ctrl+PCtrl+E, Ctrl+BCtrl+E, Ctrl+WCtrl+F1Ctrl+M, Ctrl+OCtrl+M, Ctrl+UCtrl+M, Ctrl+ACtrl+M, Ctrl+SCtrl+M, Ctrl+MCtrl+M, Ctrl+LCtrl+M, Ctrl+PCtrl+M, Ctrl+HCtrl+M, Ctrl+XCtrl+M, Ctrl+ECtrl+R, Ctrl+WCtrl+Shift+D, SAlt+F1Ctrl+1Ctrl+2Ctrl+F1Ctrl+3Ctrl+4Ctrl+5Ctrl+6Ctrl+7Ctrl+8Ctrl+9Ctrl+0Ctrl+UAlt+DCtrl+UCtrl+UCtrl+UCtrl+Alt+BreakCtrl+Alt+BCtrl+Alt+CCtrl+Shift+F9Ctrl+F9Ctrl+Alt+V, LCtrl+Alt+QShift+F9Ctrl+F10Alt+Num *Alt+F5F11Shift+F11F10Shift+F5Ctrl+Alt+HF9Ctrl+Alt+W, 1Ctrl+Alt+W, 2Ctrl+Alt+W, 3Ctrl+Alt+W, 4Alt+F9, DAlt+F9, SShift+EnterEnterLeft ArrowShift+Left ArrowShift+Alt+Left ArrowRight ArrowShift+Right ArrowShift+Alt+Right ArrowCtrl+TCtrl+K, Ctrl+LCtrl+K, Ctrl+CCtrl+K, Ctrl+CAlt+Right ArrowCtrl+SpaceCtrl+CCtrl+InsCtrl+Shift+CCtrl+XShift+DelDelShift+BkspceBkspceCtrl+K, Ctrl+\Ctrl+EndCtrl+Shift+EndCtrl+HomeCtrl+Shift+HomeCtrl+FF3Ctrl+F3Shift+F3Ctrl+Shift+F3Ctrl+K, Ctrl+DCtrl+K, Ctrl+FCtrl+GCtrl+]Ctrl+Shift+]Ctrl+ITabCtrl+LDown ArrowShift+Down ArrowShift+Alt+Down ArrowEndShift+EndShift+Alt+EndCtrl+EnterCtrl+Shift+EnterHomeShift+HomeShift+Alt+HomeShift+Alt+TUp ArrowShift+Up ArrowShift+Alt+Up ArrowCtrl+JCtrl+UCtrl+Shift+LCtrl+Shift+LCtrl+Shift+LCtrl+Shift+LCtrl+Shift+LCtrl+Shift+LCtrl+Shift+UCtrl+Shift+UCtrl+Shift+UCtrl+Shift+UCtrl+Shift+UCtrl+Shift+UDown ArrowLeft ArrowRight ArrowUp ArrowCtrl+K, Ctrl+NCtrl+Shift+K, Ctrl+Shift+NCtrl+Shift+GInsPgDnShift+PgDnPgUpShift+PgUpCtrl+Shift+SpaceCtrl+VShift+InsCtrl+K, Ctrl+PCtrl+Shift+K, Ctrl+Shift+PCtrl+K, Ctrl+ICtrl+YShift+Alt+BkspceCtrl+Shift+ZCtrl+Shift+RCtrl+HCtrl+Shift+HCtrl+Shift+ICtrl+Down ArrowCtrl+Up ArrowCtrl+ACtrl+WEscTabShift+TabCtrl+=EnterShift+Down ArrowShift+Left ArrowShift+Right ArrowShift+Up ArrowCtrl+K, Ctrl+AShift+TabCtrl+K, Ctrl+KCtrl+K, Ctrl+UCtrl+K, Ctrl+UCtrl+ZAlt+BkspceCtrl+PgDnCtrl+Shift+PgDnCtrl+PgUpCtrl+Shift+PgUpCtrl+DelCtrl+BkspceCtrl+Right ArrowCtrl+Shift+Right ArrowCtrl+Shift+Alt+Right ArrowCtrl+Left ArrowCtrl+Shift+Left ArrowCtrl+Shift+Alt+Left ArrowCtrl+Shift+TCtrl+Shift+NCtrl+NCtrl+OCtrl+Shift+OCtrl+PCtrl+Shift+SCtrl+SAlt+Down ArrowCtrl+Shift+DelCtrl+Shift+DelCtrl+Shift+DelCtrl+Shift+DelShift+Alt+ACtrl+Shift+AAlt+BreakAlt+BreakAlt+BreakAlt+BreakCtrl+Shift+QCtrl+LF5Ctrl+EF5Ctrl+EF5Ctrl+EF5Ctrl+EAlt+XCtrl+MShift+Alt+SAlt+F8Ctrl+F5Ctrl+F5Ctrl+F5Ctrl+F5Ctrl+Shift+FCtrl+Shift+FCtrl+DCtrl+DCtrl+TCtrl+TCtrl+Shift+MCtrl+Alt+PCtrl+TCtrl+TCtrl+2Ctrl+2Ctrl+1Ctrl+1Ctrl+RCtrl+RCtrl+GCtrl+GCtrl+Shift+JCtrl+Shift+JCtrl+4Ctrl+4Ctrl+3Ctrl+3Ctrl+K, Ctrl+WF2Ctrl+\, Ctrl+EShift+Alt+EnterCtrl+-F8F7Ctrl+Alt+OF4F5Ctrl+Alt+GCtrl+Alt+LCtrl+Alt+KCtrl+Alt+TCtrl+Alt+XCtrl+Alt+REscCtrl+F4Shift+EscCtrl+F2Ctrl+F6Ctrl+TabF6Ctrl+PgDnAlt+F7Ctrl+Shift+F6Ctrl+Shift+TabShift+F6Ctrl+PgUpShift+Alt+F7Ctrl+Alt+Down ArrowCtrl+RCtrl+RCtrl+RCtrl+RCtrl+Shift+Alt+BCtrl+Shift+Alt+BCtrl+Shift+Alt+GCtrl+Shift+Alt+GCtrl+Shift+Alt+TCtrl+Shift+Alt+TCtrl+Shift+Alt+UCtrl+Shift+Alt+UCtrl+Shift+Alt+HCtrl+Shift+Alt+HTrueFalseTrueTrueTrueTrueFalseFalseTrueFalsetruetrueTrueTrue10485760TrueNoneTrueTrueTrueTrueTrueTrueTrueTrueTrue%VsInstallDir%\xml\Schemas \ No newline at end of file diff --git a/SSMS/SSMS_vssettings/NewSettings_2014(12.0.5556).vssettings b/SSMS/SSMS_vssettings/NewSettings_2014(12.0.5556).vssettings new file mode 100644 index 00000000..3c8fac81 --- /dev/null +++ b/SSMS/SSMS_vssettings/NewSettings_2014(12.0.5556).vssettings @@ -0,0 +1,439 @@ +truefalsetruefalsetruefalsetruetruetrue00truetruetruefalse5010truetruefalsefalsetrue10false%vsspv_settings_directory%\NewSettings.vssettings%vsspv_visualstudio_dir%truetruetrue44true%vsspv_visualstudio_dir%\Templates\ItemTemplatesfalsetrue121%vsspv_visualstudio_dir%\Templates\ProjectTemplatestrue24truetrueTODO:2HACK:2UNDONE:2UnresolvedMergeConflict:3falsetrue + http://www.microsoft.com/sql + 1 + C:\Windows\system32\notepad.exe + http://www.bing.com + truetrue0truetruefalsetruefalsetruetruetrue4true1truefalsefalsefalsetruetruetruefalse4truetrue4true1truefalsefalsefalsetruetruetruefalse4truetrue + 4 + true + 2 + true + false + false + true + true + true + false + false + 4 + true + true + 11010111101011111000100111100010011011110000001675773604736002111101110000500015000150010001000100020002000500010000100002501000500125100011001111111111000011100100110000000010120485090001http://referencesource.microsoft.com/symbolshttp://msdl.microsoft.com/download/symbolsFunction: $FUNCTION, Thread: $TID $TNAMEtruefalsetruetruetruetruefalsefalsefalsetruefalsefalsefalsefalsetruetruetruetruefalsefalsetruetruefalsetruefalse1truetruetrue{7E5BB8D2-57E5-4FA9-9542-3870395C16A1}FalseTrueTrue00 + MatchCase=0 WholeWord=0 Hidden=0 Up=0 Selection=0 Block=0 KeepCase=0 SubFolders=1 KeepOpen=0 NameOnly=0 Plain Document ReplaceAll + MatchCase=0 WholeWord=0 Hidden=0 Up=0 Selection=0 Block=0 KeepCase=0 SubFolders=1 KeepOpen=0 NameOnly=0 Plain Document ReplaceAll + MatchCase=0 WholeWord=0 Hidden=0 Up=0 Selection=0 Block=0 KeepCase=0 SubFolders=1 KeepOpen=0 NameOnly=0 Plain Files Find + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + Regex + 32 + 0 + falsetruefalse2{B1BA9461-FC54-45B3-A484-CB6DD0B95C94}0 + 2 + + + + + + + + + + + + + + + + + false + true + false + falsefalsefalsefalsetruefalsefalsefalsetruefalsefalsefalsefalsetruetruetruetruefalsefalsetruetruefalsetruefalse{B1BA9461-FC54-45B3-A484-CB6DD0B95C94}0false01falsetruefalse1{00000000-0000-0000-0000-000000000000} + false + 1 + 0 + {7b5d447b-0b12-41ea-a84e-c822034422d4}-#1106 + All Windows Forms + 0 + true + 4 + 2 + {7b5d447b-0b12-41ea-a84e-c822034422d4}-#1107 + Common Controls + 0 + true + 4 + 3 + {7b5d447b-0b12-41ea-a84e-c822034422d4}-#1102 + Containers + 0 + true + 4 + 4 + {7b5d447b-0b12-41ea-a84e-c822034422d4}-#1103 + Menus & Toolbars + 0 + true + 4 + 5 + Data + Data + 0 + true + 4 + 6 + {7b5d447b-0b12-41ea-a84e-c822034422d4}-#1101 + Components + 0 + true + 4 + 7 + {7b5d447b-0b12-41ea-a84e-c822034422d4}-#1104 + Printing + 0 + true + 4 + 8 + {7b5d447b-0b12-41ea-a84e-c822034422d4}-#1105 + Dialogs + 0 + true + 4 + 9 + 8 + 0 + 0 + 7Design|NoToolWin|Debug + 10.0.0.0 + + + + + + + + + + + + + + + + + + + + Ctrl+Shift+L + Ctrl+E, Ctrl+R + Ctrl+E, Ctrl+F + Ctrl+E, Ctrl+G + Ctrl+E, Ctrl+N + Ctrl+E, Ctrl+P + Ctrl+E, Ctrl+B + Ctrl+E, Ctrl+W + Ctrl+F1 + Ctrl+M, Ctrl+O + Ctrl+M, Ctrl+U + Ctrl+M, Ctrl+A + Ctrl+M, Ctrl+S + Ctrl+M, Ctrl+M + Ctrl+M, Ctrl+L + Ctrl+M, Ctrl+P + Ctrl+M, Ctrl+H + Ctrl+M, Ctrl+X + Ctrl+M, Ctrl+E + Ctrl+Shift+F + Ctrl+R, Ctrl+W + F7 + F8 + F5 + Ctrl+Shift+D, S + Ctrl+Shift+D, K + Alt+F1 + Ctrl+1 + Ctrl+2 + Ctrl+F1 + Ctrl+3 + Ctrl+4 + Ctrl+5 + Ctrl+6 + Ctrl+7 + Ctrl+8 + Ctrl+9 + Ctrl+0 + Ctrl+U + Alt+D + Ctrl+U + Ctrl+U + Ctrl+U + Ctrl+Alt+Break + Ctrl+Alt+B + Ctrl+Alt+C + Ctrl+Shift+F9 + Ctrl+F9 + Ctrl+Alt+V, L + Ctrl+Alt+Q + Shift+F9 + Ctrl+F10 + Alt+Num * + Alt+F5 + F11 + Shift+F11 + F10 + Shift+F5 + Ctrl+Alt+H + F9 + Ctrl+Alt+W, 1 + Ctrl+Alt+W, 2 + Ctrl+Alt+W, 3 + Ctrl+Alt+W, 4 + Alt+F9, D + Alt+F9, S + Shift+Enter + Enter + Left Arrow + Shift+Left Arrow + Shift+Alt+Left Arrow + Right Arrow + Shift+Right Arrow + Shift+Alt+Right Arrow + Ctrl+T + Ctrl+K, Ctrl+L + Ctrl+K, Ctrl+C + Ctrl+K, Ctrl+C + Alt+Right Arrow + Ctrl+Space + Ctrl+C + Ctrl+Ins + Ctrl+Shift+C + Ctrl+X + Shift+Del + Del + Shift+Bkspce + Bkspce + Ctrl+K, Ctrl+\ + Ctrl+End + Ctrl+Shift+End + Ctrl+Home + Ctrl+Shift+Home + Ctrl+F + F3 + Ctrl+F3 + Shift+F3 + Ctrl+Shift+F3 + Ctrl+K, Ctrl+D + Ctrl+K, Ctrl+F + Ctrl+G + Ctrl+] + Ctrl+Shift+] + Ctrl+I + Tab + Ctrl+L + Down Arrow + Shift+Down Arrow + Shift+Alt+Down Arrow + End + Shift+End + Shift+Alt+End + Ctrl+Enter + Ctrl+Shift+Enter + Home + Shift+Home + Shift+Alt+Home + Shift+Alt+T + Up Arrow + Shift+Up Arrow + Shift+Alt+Up Arrow + Ctrl+J + Ctrl+U + Ctrl+Shift+L + Ctrl+Shift+L + Ctrl+Shift+L + Ctrl+Shift+L + Ctrl+Shift+L + Ctrl+Shift+L + Ctrl+Shift+U + Ctrl+Shift+U + Ctrl+Shift+U + Ctrl+Shift+U + Ctrl+Shift+U + Ctrl+Shift+U + Down Arrow + Left Arrow + Right Arrow + Up Arrow + Ctrl+K, Ctrl+N + Ctrl+Shift+K, Ctrl+Shift+N + Ctrl+Shift+G + Ins + PgDn + Shift+PgDn + PgUp + Shift+PgUp + Ctrl+Shift+Space + Ctrl+V + Shift+Ins + Ctrl+K, Ctrl+P + Ctrl+Shift+K, Ctrl+Shift+P + Ctrl+K, Ctrl+I + Ctrl+Y + Shift+Alt+Bkspce + Ctrl+Shift+Z + Ctrl+Shift+R + Ctrl+H + Ctrl+Shift+H + Ctrl+Shift+I + Ctrl+Down Arrow + Ctrl+Up Arrow + Ctrl+A + Ctrl+W + Esc + Tab + Shift+Tab + Ctrl+= + Enter + Shift+Down Arrow + Shift+Left Arrow + Shift+Right Arrow + Shift+Up Arrow + Ctrl+K, Ctrl+A + Shift+Tab + Ctrl+K, Ctrl+K + Ctrl+K, Ctrl+U + Ctrl+K, Ctrl+U + Ctrl+Z + Alt+Bkspce + Ctrl+PgDn + Ctrl+Shift+PgDn + Ctrl+PgUp + Ctrl+Shift+PgUp + Ctrl+Del + Ctrl+Bkspce + Ctrl+Right Arrow + Ctrl+Shift+Right Arrow + Ctrl+Shift+Alt+Right Arrow + Ctrl+Left Arrow + Ctrl+Shift+Left Arrow + Ctrl+Shift+Alt+Left Arrow + Ctrl+Shift+T + Ctrl+Shift+N + Ctrl+N + Ctrl+O + Ctrl+Shift+O + Ctrl+P + Ctrl+Shift+S + Ctrl+S + Alt+Down Arrow + Ctrl+Shift+Del + Ctrl+Shift+Del + Ctrl+Shift+Del + Ctrl+Shift+Del + Shift+Alt+A + Ctrl+Shift+A + Alt+Break + Alt+Break + Alt+Break + Alt+Break + Ctrl+Shift+Q + Ctrl+L + F5 + Ctrl+E + F5 + Ctrl+E + F5 + Ctrl+E + F5 + 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+ + + + + + + + + + + + + Ctrl+6 + Ctrl+7 + + + Ctrl+U + Ctrl+Shift+L + Ctrl+E, Ctrl+R + Ctrl+E, Ctrl+F + Ctrl+E, Ctrl+G + Ctrl+E, Ctrl+N + Ctrl+E, Ctrl+P + Ctrl+E, Ctrl+B + Ctrl+E, Ctrl+W + Ctrl+F1 + Ctrl+M, Ctrl+O + Ctrl+M, Ctrl+U + Ctrl+M, Ctrl+A + Ctrl+M, Ctrl+S + Ctrl+M, Ctrl+M + Ctrl+M, Ctrl+L + Ctrl+M, Ctrl+P + Ctrl+M, Ctrl+H + Ctrl+M, Ctrl+X + Ctrl+M, Ctrl+E + Ctrl+Shift+F + Ctrl+R, Ctrl+W + F7 + F8 + F5 + Ctrl+Shift+D, S + Ctrl+Shift+D, K + + Alt+F1 + Ctrl+1 + Ctrl+2 + Ctrl+F1 + Ctrl+3 + Ctrl+4 + Ctrl+5 + Ctrl+6 + Ctrl+7 + Ctrl+8 + Ctrl+9 + Ctrl+0 + Ctrl+Alt+A + Ctrl+U + Alt+D + Ctrl+U + Ctrl+U + Ctrl+U + Ctrl+Alt+Break + Ctrl+Alt+B + Ctrl+Alt+C + Ctrl+Shift+F9 + Ctrl+F9 + Ctrl+Alt+V, L + Ctrl+Alt+Q + Shift+F9 + Ctrl+F10 + Alt+Num * + Alt+F5 + F11 + Shift+F11 + F10 + Shift+F5 + Ctrl+Alt+H + F9 + Ctrl+Alt+W, 1 + Ctrl+Alt+W, 2 + Ctrl+Alt+W, 3 + Ctrl+Alt+W, 4 + Alt+F9, D + Alt+F9, S + Shift+Enter + Enter + Left Arrow + Shift+Left Arrow + Shift+Alt+Left Arrow + Right Arrow + Shift+Right Arrow + Shift+Alt+Right Arrow + Ctrl+T + Ctrl+K, Ctrl+L + Ctrl+K, Ctrl+C + Ctrl+K, Ctrl+C + Alt+Right Arrow + Ctrl+Space + Ctrl+C + Ctrl+Ins + Ctrl+Shift+C + Ctrl+X + Shift+Del + Del + Shift+Bkspce + Bkspce + Ctrl+K, Ctrl+\ + Ctrl+End + Ctrl+Shift+End + Ctrl+Home + Ctrl+Shift+Home + Ctrl+F + F3 + Ctrl+F3 + Shift+F3 + Ctrl+Shift+F3 + Ctrl+K, Ctrl+D + Ctrl+K, Ctrl+F + Ctrl+G + Ctrl+] + Ctrl+Shift+] + Ctrl+I + Tab + Ctrl+L + Down Arrow + Shift+Down Arrow + Shift+Alt+Down Arrow + End + Shift+End + Shift+Alt+End + Ctrl+Enter + Ctrl+Shift+Enter + Home + Shift+Home + Shift+Alt+Home + Shift+Alt+T + Up Arrow + Shift+Up Arrow + Shift+Alt+Up Arrow + Ctrl+J + Ctrl+U + Ctrl+Shift+L + Ctrl+Shift+L + Ctrl+Shift+L + Ctrl+Shift+L + Ctrl+Shift+L + Ctrl+Shift+L + Ctrl+Shift+U + Ctrl+Shift+U + Ctrl+Shift+U + Ctrl+Shift+U + Ctrl+Shift+U + Ctrl+Shift+U + Down Arrow + Left Arrow + Right Arrow + Up Arrow + Ctrl+K, Ctrl+N + Ctrl+Shift+K, Ctrl+Shift+N + Ctrl+Shift+G + Ins + PgDn + Shift+PgDn + PgUp + Shift+PgUp + Ctrl+Shift+Space + Ctrl+V + Shift+Ins + Ctrl+K, Ctrl+P + Ctrl+Shift+K, Ctrl+Shift+P + Ctrl+K, Ctrl+I + Ctrl+Y + Shift+Alt+Bkspce + Ctrl+Shift+Z + Ctrl+Shift+R + Ctrl+H + Ctrl+Shift+H + Ctrl+Shift+I + Ctrl+Down Arrow + Ctrl+Up Arrow + Ctrl+A + Ctrl+W + Esc + Tab + Shift+Tab + Ctrl+= + Enter + Shift+Down Arrow + Shift+Left Arrow + Shift+Right Arrow + Shift+Up Arrow + Ctrl+K, Ctrl+A + Shift+Tab + Ctrl+K, Ctrl+K + Ctrl+K, Ctrl+U + Ctrl+K, Ctrl+U + Ctrl+Z + Alt+Bkspce + Ctrl+PgDn + Ctrl+Shift+PgDn + Ctrl+PgUp + Ctrl+Shift+PgUp + Ctrl+Del + Ctrl+Bkspce + Ctrl+Right Arrow + Ctrl+Shift+Right Arrow + Ctrl+Shift+Alt+Right Arrow + Ctrl+Left Arrow + Ctrl+Shift+Left Arrow + Ctrl+Shift+Alt+Left Arrow + Ctrl+Shift+T + Ctrl+Shift+N + Ctrl+N + Ctrl+O + Ctrl+Shift+O + Ctrl+P + Ctrl+Shift+S + Ctrl+S + Alt+Down Arrow + Ctrl+Shift+Del + Ctrl+Shift+Del + Ctrl+Shift+Del + Ctrl+Shift+Del + Shift+Alt+A + Ctrl+Shift+A + Alt+Break + Alt+Break + Alt+Break + Alt+Break + Ctrl+Shift+Q + Ctrl+L + F5 + Ctrl+E + F5 + Ctrl+E + F5 + Ctrl+E + F5 + Ctrl+E + Alt+X + Ctrl+M + Shift+Alt+S + Alt+F8 + Ctrl+F5 + Ctrl+F5 + Ctrl+F5 + Ctrl+F5 + Ctrl+Shift+F + Ctrl+Shift+F + Ctrl+D + Ctrl+D + Ctrl+T + Ctrl+T + Ctrl+Shift+M + Ctrl+Alt+P + Ctrl+T + Ctrl+T + Ctrl+2 + Ctrl+2 + Ctrl+1 + Ctrl+1 + Ctrl+R + Ctrl+R + Ctrl+G + Ctrl+G + Ctrl+Shift+J + Ctrl+Shift+J + Ctrl+4 + Ctrl+4 + Ctrl+3 + Ctrl+3 + Ctrl+K, Ctrl+W + F2 + Ctrl+\, Ctrl+E + Shift+Alt+Enter + Ctrl+- + F8 + F7 + Ctrl+Alt+O + F4 + F5 + Ctrl+Alt+G + Ctrl+Alt+L + Ctrl+Alt+K + Ctrl+Alt+T + Ctrl+Alt+X + Ctrl+Alt+R + Esc + Ctrl+F4 + Shift+Esc + Ctrl+F2 + Ctrl+F6 + Ctrl+Tab + F6 + Ctrl+PgDn + Alt+F7 + Ctrl+Shift+F6 + Ctrl+Shift+Tab + Shift+F6 + Ctrl+PgUp + Shift+Alt+F7 + Ctrl+Alt+Down Arrow + Ctrl+R + Ctrl+R + Ctrl+R + Ctrl+R + + + TrueTrue10485760TrueNoneTrueTrueTrueTrueTrueTrueTrueTrueTrue%VsInstallDir%\xml\Schemas + True + True + True + 8, 8 + SnapLines + True + True + True + True + \ No newline at end of file diff --git a/SSMS/SSMS_vssettings/README.md b/SSMS/SSMS_vssettings/README.md new file mode 100644 index 00000000..326a63c8 --- /dev/null +++ b/SSMS/SSMS_vssettings/README.md @@ -0,0 +1,6 @@ +# SSMS settings files + + - [NewSettings_17.2(14.0.17177).vssettings](/NewSettings_17.2(14.0.17177).vssettings) + - [NewSettings_2014(12.0.5556).vssettings](/NewSettings_2014(12.0.5556).vssettings) + - [NewSettings_Default_17.2(14.0.17177).vssettings](/NewSettings_Default_17.2(14.0.17177).vssettings) + - [NewSettings_Default_2014(12.0.5556).vssettings](/NewSettings_Default_2014(12.0.5556).vssettings) diff --git a/Sample_Databases/Create_Enlarged_Adventureworks_Tables.sql b/Sample_Databases/Create_Enlarged_Adventureworks_Tables.sql new file mode 100644 index 00000000..81347f1e --- /dev/null +++ b/Sample_Databases/Create_Enlarged_Adventureworks_Tables.sql @@ -0,0 +1,224 @@ +/***************************************************************************** +* FileName: Create Enlarged AdventureWorks Tables.sql +* +* Summary: Creates an enlarged version of the AdventureWorks database +* for use in demonstrating SQL Server performance tuning and +* execution plan issues. +* +* Date: November 14, 2011 +* +* SQL Server Versions: +* 2008, 2008R2, 2012 +* +****************************************************************************** +* Copyright (C) 2011 Jonathan M. Kehayias, SQLskills.com +* All rights reserved. +* +* For more scripts and sample code, check out +* https://www.sqlskills.com/blogs/jonathan/enlarging-the-adventureworks-sample-databases/ +* +* You may alter this code for your own *non-commercial* purposes. You may +* republish altered code as long as you include this copyright and give +* due credit. +* +* +* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF +* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED +* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A +* PARTICULAR PURPOSE. +* +******************************************************************************/ + + + +USE AdventureWorks2008R2; +GO + +IF OBJECT_ID('Sales.SalesOrderHeaderEnlarged') IS NOT NULL + DROP TABLE Sales.SalesOrderHeaderEnlarged; +GO + +CREATE TABLE Sales.SalesOrderHeaderEnlarged + ( + SalesOrderID int NOT NULL IDENTITY (1, 1) NOT FOR REPLICATION, + RevisionNumber tinyint NOT NULL, + OrderDate datetime NOT NULL, + DueDate datetime NOT NULL, + ShipDate datetime NULL, + Status tinyint NOT NULL, + OnlineOrderFlag dbo.Flag NOT NULL, + SalesOrderNumber AS (isnull(N'SO'+CONVERT([nvarchar](23),[SalesOrderID],0),N'*** ERROR ***')), + PurchaseOrderNumber dbo.OrderNumber NULL, + AccountNumber dbo.AccountNumber NULL, + CustomerID int NOT NULL, + SalesPersonID int NULL, + TerritoryID int NULL, + BillToAddressID int NOT NULL, + ShipToAddressID int NOT NULL, + ShipMethodID int NOT NULL, + CreditCardID int NULL, + CreditCardApprovalCode varchar(15) NULL, + CurrencyRateID int NULL, + SubTotal money NOT NULL, + TaxAmt money NOT NULL, + Freight money NOT NULL, + TotalDue AS (isnull(([SubTotal]+[TaxAmt])+[Freight],(0))), + Comment nvarchar(128) NULL, + rowguid uniqueidentifier NOT NULL ROWGUIDCOL, + ModifiedDate datetime NOT NULL + ) ON [PRIMARY] +GO + +SET IDENTITY_INSERT Sales.SalesOrderHeaderEnlarged ON +GO +INSERT INTO Sales.SalesOrderHeaderEnlarged (SalesOrderID, RevisionNumber, OrderDate, DueDate, ShipDate, Status, OnlineOrderFlag, PurchaseOrderNumber, AccountNumber, CustomerID, SalesPersonID, TerritoryID, BillToAddressID, ShipToAddressID, ShipMethodID, CreditCardID, CreditCardApprovalCode, CurrencyRateID, SubTotal, TaxAmt, Freight, Comment, rowguid, ModifiedDate) +SELECT SalesOrderID, RevisionNumber, OrderDate, DueDate, ShipDate, Status, OnlineOrderFlag, PurchaseOrderNumber, AccountNumber, CustomerID, SalesPersonID, TerritoryID, BillToAddressID, ShipToAddressID, ShipMethodID, CreditCardID, CreditCardApprovalCode, CurrencyRateID, SubTotal, TaxAmt, Freight, Comment, rowguid, ModifiedDate +FROM Sales.SalesOrderHeader WITH (HOLDLOCK TABLOCKX) +GO +SET IDENTITY_INSERT Sales.SalesOrderHeaderEnlarged OFF + +GO +ALTER TABLE Sales.SalesOrderHeaderEnlarged ADD CONSTRAINT + PK_SalesOrderHeaderEnlarged_SalesOrderID PRIMARY KEY CLUSTERED + ( + SalesOrderID + ) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] + +GO + +CREATE UNIQUE NONCLUSTERED INDEX AK_SalesOrderHeaderEnlarged_rowguid ON Sales.SalesOrderHeaderEnlarged + ( + rowguid + ) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] +GO + +CREATE UNIQUE NONCLUSTERED INDEX AK_SalesOrderHeaderEnlarged_SalesOrderNumber ON Sales.SalesOrderHeaderEnlarged + ( + SalesOrderNumber + ) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] +GO + +CREATE NONCLUSTERED INDEX IX_SalesOrderHeaderEnlarged_CustomerID ON Sales.SalesOrderHeaderEnlarged + ( + CustomerID + ) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] +GO + +CREATE NONCLUSTERED INDEX IX_SalesOrderHeaderEnlarged_SalesPersonID ON Sales.SalesOrderHeaderEnlarged + ( + SalesPersonID + ) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] +GO + +IF OBJECT_ID('Sales.SalesOrderDetailEnlarged') IS NOT NULL + DROP TABLE Sales.SalesOrderDetailEnlarged; +GO +CREATE TABLE Sales.SalesOrderDetailEnlarged + ( + SalesOrderID int NOT NULL, + SalesOrderDetailID int NOT NULL IDENTITY (1, 1), + CarrierTrackingNumber nvarchar(25) NULL, + OrderQty smallint NOT NULL, + ProductID int NOT NULL, + SpecialOfferID int NOT NULL, + UnitPrice money NOT NULL, + UnitPriceDiscount money NOT NULL, + LineTotal AS (isnull(([UnitPrice]*((1.0)-[UnitPriceDiscount]))*[OrderQty],(0.0))), + rowguid uniqueidentifier NOT NULL ROWGUIDCOL, + ModifiedDate datetime NOT NULL + ) ON [PRIMARY] +GO + +SET IDENTITY_INSERT Sales.SalesOrderDetailEnlarged ON +GO +INSERT INTO Sales.SalesOrderDetailEnlarged (SalesOrderID, SalesOrderDetailID, CarrierTrackingNumber, OrderQty, ProductID, SpecialOfferID, UnitPrice, UnitPriceDiscount, rowguid, ModifiedDate) +SELECT SalesOrderID, SalesOrderDetailID, CarrierTrackingNumber, OrderQty, ProductID, SpecialOfferID, UnitPrice, UnitPriceDiscount, rowguid, ModifiedDate +FROM Sales.SalesOrderDetail WITH (HOLDLOCK TABLOCKX) +GO +SET IDENTITY_INSERT Sales.SalesOrderDetailEnlarged OFF +GO +ALTER TABLE Sales.SalesOrderDetailEnlarged ADD CONSTRAINT + PK_SalesOrderDetailEnlarged_SalesOrderID_SalesOrderDetailID PRIMARY KEY CLUSTERED + ( + SalesOrderID, + SalesOrderDetailID + ) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] + +GO +CREATE UNIQUE NONCLUSTERED INDEX AK_SalesOrderDetailEnlarged_rowguid ON Sales.SalesOrderDetailEnlarged + ( + rowguid + ) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] +GO +CREATE NONCLUSTERED INDEX IX_SalesOrderDetailEnlarged_ProductID ON Sales.SalesOrderDetailEnlarged + ( + ProductID + ) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] +GO + + +BEGIN TRANSACTION + + +DECLARE @TableVar TABLE +(OrigSalesOrderID int, NewSalesOrderID int) + +INSERT INTO Sales.SalesOrderHeaderEnlarged + (RevisionNumber, OrderDate, DueDate, ShipDate, Status, OnlineOrderFlag, + PurchaseOrderNumber, AccountNumber, CustomerID, SalesPersonID, TerritoryID, + BillToAddressID, ShipToAddressID, ShipMethodID, CreditCardID, + CreditCardApprovalCode, CurrencyRateID, SubTotal, TaxAmt, Freight, Comment, + rowguid, ModifiedDate) +OUTPUT inserted.Comment, inserted.SalesOrderID + INTO @TableVar +SELECT RevisionNumber, DATEADD(dd, number, OrderDate) AS OrderDate, + DATEADD(dd, number, DueDate), DATEADD(dd, number, ShipDate), + Status, OnlineOrderFlag, + PurchaseOrderNumber, + AccountNumber, + CustomerID, SalesPersonID, TerritoryID, BillToAddressID, + ShipToAddressID, ShipMethodID, CreditCardID, CreditCardApprovalCode, + CurrencyRateID, SubTotal, TaxAmt, Freight, SalesOrderID, + NEWID(), DATEADD(dd, number, ModifiedDate) +FROM Sales.SalesOrderHeader AS soh WITH (HOLDLOCK TABLOCKX) +CROSS JOIN ( + SELECT number + FROM ( SELECT TOP 10 number + FROM master.dbo.spt_values + WHERE type = N'P' + AND number < 1000 + ORDER BY NEWID() DESC + UNION + SELECT TOP 10 number + FROM master.dbo.spt_values + WHERE type = N'P' + AND number < 1000 + ORDER BY NEWID() DESC + UNION + SELECT TOP 10 number + FROM master.dbo.spt_values + WHERE type = N'P' + AND number < 1000 + ORDER BY NEWID() DESC + UNION + SELECT TOP 10 number + FROM master.dbo.spt_values + WHERE type = N'P' + AND number < 1000 + ORDER BY NEWID() DESC + ) AS tab +) AS Randomizer +ORDER BY OrderDate, number + +INSERT INTO Sales.SalesOrderDetailEnlarged + (SalesOrderID, CarrierTrackingNumber, OrderQty, ProductID, + SpecialOfferID, UnitPrice, UnitPriceDiscount, rowguid, ModifiedDate) +SELECT + tv.NewSalesOrderID, CarrierTrackingNumber, OrderQty, ProductID, + SpecialOfferID, UnitPrice, UnitPriceDiscount, NEWID(), ModifiedDate +FROM Sales.SalesOrderDetail AS sod +JOIN @TableVar AS tv + ON sod.SalesOrderID = tv.OrigSalesOrderID +ORDER BY sod.SalesOrderDetailID + +COMMIT \ No newline at end of file diff --git a/Sample_Databases/Database_script.sql b/Sample_Databases/Database_script.sql new file mode 100644 index 00000000..fc342d1e --- /dev/null +++ b/Sample_Databases/Database_script.sql @@ -0,0 +1,24 @@ +SELECT name [Database Name] + , physical_name [File Location] + , ROUND(size * (8.0 / 1024), 0) [Size in MBs] + , * + FROM sys.master_files + WHERE file_id = 1 AND name NOT IN ('master', 'tempdev', 'modeldev', 'MSDBData') + ORDER BY CASE WHEN physical_name LIKE '%StackOverflow2010.mdf' THEN 1 + WHEN physical_name LIKE '%StackOverflow.mdf' THEN 2 + WHEN physical_name LIKE '%WideWorldImporters.mdf' THEN 3 + WHEN physical_name LIKE '%WideWorldImportersDW.mdf' THEN 4 + WHEN physical_name LIKE '%AdventureWorks2017.mdf' THEN 5 + WHEN physical_name LIKE '%AdventureWorks2016_Data.mdf' THEN 6 + WHEN physical_name LIKE '%AdventureWorks2016_EXT_Data.mdf' THEN 7 + WHEN physical_name LIKE '%AdventureWorks2014_Data.mdf' THEN 8 + WHEN physical_name LIKE '%AdventureWorks2012.mdf' THEN 9 + WHEN physical_name LIKE '%AdventureWorksDW2017.mdf' THEN 10 + WHEN physical_name LIKE '%AdventureWorksDW2016_Data.mdf' THEN 11 + WHEN physical_name LIKE '%AdventureWorksDW2016_EXT_Data.mdf' THEN 12 + WHEN physical_name LIKE '%AdventureWorksDW2014_Data.mdf' THEN 13 + WHEN physical_name LIKE '%AdventureWorksDW2012.mdf' THEN 14 + WHEN physical_name LIKE '%AdventureWorksMultidimensionalModel.mdf' THEN 15 + WHEN physical_name LIKE '%AdventureWorksTabularModel.mdf' THEN 16 + ELSE 100 + END; diff --git a/Sample_Databases/PerformanceV3.sql b/Sample_Databases/PerformanceV3.sql new file mode 100644 index 00000000..c1912a03 --- /dev/null +++ b/Sample_Databases/PerformanceV3.sql @@ -0,0 +1,220 @@ +--------------------------------------------------------------------- +-- Script that creates the sample database PerformanceV3 +-- +-- Last updated: 20141125 +-- +-- Itzik Ben-Gan +--------------------------------------------------------------------- + +-- creation script for sample database and tables +SET NOCOUNT ON; +USE master; +IF DB_ID(N'PerformanceV3') IS NULL CREATE DATABASE PerformanceV3; +GO +USE PerformanceV3; +GO + +-- drop objects if exist +IF OBJECT_ID(N'dbo.GetNums', N'IF') IS NOT NULL DROP FUNCTION dbo.GetNums; + +IF OBJECT_ID(N'dbo.VEmpOrders', N'V') IS NOT NULL DROP VIEW dbo.VEmpOrders; + +IF OBJECT_ID(N'dbo.Orders' , N'U') IS NOT NULL DROP TABLE dbo.Orders; +IF OBJECT_ID(N'dbo.Customers', N'U') IS NOT NULL DROP TABLE dbo.Customers; +IF OBJECT_ID(N'dbo.Employees', N'U') IS NOT NULL DROP TABLE dbo.Employees; +IF OBJECT_ID(N'dbo.Shippers' , N'U') IS NOT NULL DROP TABLE dbo.Shippers; + +IF OBJECT_ID(N'dbo.Fact' , N'U') IS NOT NULL DROP TABLE dbo.Fact; +IF OBJECT_ID(N'dbo.FactCS', N'U') IS NOT NULL DROP TABLE dbo.FactCS; +IF OBJECT_ID(N'dbo.Dim1' , N'U') IS NOT NULL DROP TABLE dbo.Dim1; +IF OBJECT_ID(N'dbo.Dim2' , N'U') IS NOT NULL DROP TABLE dbo.Dim2; +IF OBJECT_ID(N'dbo.Dim3' , N'U') IS NOT NULL DROP TABLE dbo.Dim3; +GO + +-- definition of GetNums function +CREATE FUNCTION dbo.GetNums(@low AS BIGINT, @high AS BIGINT) RETURNS TABLE +AS +RETURN + WITH + L0 AS (SELECT c FROM (VALUES(1),(1)) AS D(c)), + L1 AS (SELECT 1 AS c FROM L0 AS A CROSS JOIN L0 AS B), + L2 AS (SELECT 1 AS c FROM L1 AS A CROSS JOIN L1 AS B), + L3 AS (SELECT 1 AS c FROM L2 AS A CROSS JOIN L2 AS B), + L4 AS (SELECT 1 AS c FROM L3 AS A CROSS JOIN L3 AS B), + L5 AS (SELECT 1 AS c FROM L4 AS A CROSS JOIN L4 AS B), + Nums AS (SELECT ROW_NUMBER() OVER(ORDER BY (SELECT NULL)) AS rownum + FROM L5) + SELECT TOP(@high - @low + 1) @low + rownum - 1 AS n + FROM Nums + ORDER BY rownum; +GO + +-- data distribution settings for orders +DECLARE + @numorders AS INT = 1000000, + @numcusts AS INT = 20000, + @numemps AS INT = 500, + @numshippers AS INT = 5, + @numyears AS INT = 4, + @startdate AS DATE = '20110101'; + +-- creating and populating the Customers table +CREATE TABLE dbo.Customers +( + custid CHAR(11) NOT NULL, + custname NVARCHAR(50) NOT NULL +); + +INSERT INTO dbo.Customers(custid, custname) + SELECT + 'C' + RIGHT('000000000' + CAST(n AS VARCHAR(10)), 10) AS custid, + N'Cust_' + CAST(n AS VARCHAR(10)) AS custname + FROM dbo.GetNums(1, @numcusts); + +ALTER TABLE dbo.Customers ADD + CONSTRAINT PK_Customers PRIMARY KEY(custid); + +-- creating and populating the Employees table +CREATE TABLE dbo.Employees +( + empid INT NOT NULL, + firstname NVARCHAR(25) NOT NULL, + lastname NVARCHAR(25) NOT NULL +); + +INSERT INTO dbo.Employees(empid, firstname, lastname) + SELECT n AS empid, + N'Fname_' + CAST(n AS NVARCHAR(10)) AS firstname, + N'Lname_' + CAST(n AS NVARCHAR(10)) AS lastname + FROM dbo.GetNums(1, @numemps); + +ALTER TABLE dbo.Employees ADD + CONSTRAINT PK_Employees PRIMARY KEY(empid); + +-- creating and populating the Shippers table +CREATE TABLE dbo.Shippers +( + shipperid VARCHAR(5) NOT NULL, + shippername NVARCHAR(50) NOT NULL +); + +INSERT INTO dbo.Shippers(shipperid, shippername) + SELECT shipperid, N'Shipper_' + shipperid AS shippername + FROM (SELECT CHAR(ASCII('A') - 2 + 2 * n) AS shipperid + FROM dbo.GetNums(1, @numshippers)) AS D; + +ALTER TABLE dbo.Shippers ADD + CONSTRAINT PK_Shippers PRIMARY KEY(shipperid); + +-- creating and populating the Orders table +CREATE TABLE dbo.Orders +( + orderid INT NOT NULL, + custid CHAR(11) NOT NULL, + empid INT NOT NULL, + shipperid VARCHAR(5) NOT NULL, + orderdate DATE NOT NULL, + filler CHAR(160) NOT NULL DEFAULT('a') +); + +INSERT INTO dbo.Orders(orderid, custid, empid, shipperid, orderdate) + SELECT n AS orderid, + 'C' + RIGHT('000000000' + + CAST( + 1 + ABS(CHECKSUM(NEWID())) % @numcusts + AS VARCHAR(10)), 10) AS custid, + 1 + ABS(CHECKSUM(NEWID())) % @numemps AS empid, + CHAR(ASCII('A') - 2 + + 2 * (1 + ABS(CHECKSUM(NEWID())) % @numshippers)) AS shipperid, + DATEADD(day, n / (@numorders / (@numyears * 365.25)) + -- late arrival with earlier date + - CASE WHEN n % 10 = 0 + THEN 1 + ABS(CHECKSUM(NEWID())) % 30 + ELSE 0 + END, @startdate) + AS orderdate + FROM dbo.GetNums(1, @numorders) + ORDER BY CHECKSUM(NEWID()) +OPTION(MAXDOP 1); + +CREATE CLUSTERED INDEX idx_cl_od ON dbo.Orders(orderdate); + +CREATE NONCLUSTERED INDEX idx_nc_sid_od_cid + ON dbo.Orders(shipperid, orderdate, custid); + +CREATE UNIQUE INDEX idx_unc_od_oid_i_cid_eid + ON dbo.Orders(orderdate, orderid) + INCLUDE(custid, empid); + +ALTER TABLE dbo.Orders ADD + CONSTRAINT PK_Orders PRIMARY KEY NONCLUSTERED(orderid), + CONSTRAINT FK_Orders_Customers + FOREIGN KEY(custid) REFERENCES dbo.Customers(custid), + CONSTRAINT FK_Orders_Employees + FOREIGN KEY(empid) REFERENCES dbo.Employees(empid), + CONSTRAINT FK_Orders_Shippers + FOREIGN KEY(shipperid) REFERENCES dbo.Shippers(shipperid); +GO + +-- data distribution settings for dw (2,500,000 rows) +DECLARE + @dim1rows AS INT = 250, + @dim2rows AS INT = 50, + @dim3rows AS INT = 200; + +CREATE TABLE dbo.Dim1 +( + key1 INT NOT NULL CONSTRAINT PK_Dim1 PRIMARY KEY, + attr1 INT NOT NULL, + filler BINARY(100) NOT NULL DEFAULT (0x) +); + +CREATE TABLE dbo.Dim2 +( + key2 INT NOT NULL CONSTRAINT PK_Dim2 PRIMARY KEY, + attr1 INT NOT NULL, + filler BINARY(100) NOT NULL DEFAULT (0x) +); + +CREATE TABLE dbo.Dim3 +( + key3 INT NOT NULL CONSTRAINT PK_Dim3 PRIMARY KEY, + attr1 INT NOT NULL, + filler BINARY(100) NOT NULL DEFAULT (0x) +); + +CREATE TABLE dbo.Fact +( + key1 INT NOT NULL, + key2 INT NOT NULL, + key3 INT NOT NULL, + measure1 INT NOT NULL, + measure2 INT NOT NULL, + measure3 INT NOT NULL, + measure4 NVARCHAR(50) NULL, + filler BINARY(100) NOT NULL DEFAULT (0x), + CONSTRAINT PK_Fact PRIMARY KEY(key1, key2, key3) +); + +INSERT INTO dbo.Dim1(key1, attr1) + SELECT n, ABS(CHECKSUM(NEWID())) % 20 + 1 + FROM dbo.GetNums(1, @dim1rows); + +INSERT INTO dbo.Dim2(key2, attr1) + SELECT n, ABS(CHECKSUM(NEWID())) % 10 + 1 + FROM dbo.GetNums(1, @dim2rows); + +INSERT INTO dbo.Dim3(key3, attr1) + SELECT n, ABS(CHECKSUM(NEWID())) % 40 + 1 + FROM dbo.GetNums(1, @dim3rows); + +INSERT INTO dbo.Fact WITH (TABLOCK) + (key1, key2, key3, measure1, measure2, measure3, measure4) + SELECT D1.key1, D2.key2, D3.key3, + ABS(CHECKSUM(NEWID())) % 10000 + 1, + ABS(CHECKSUM(NEWID())) % 100000 + 1, + ABS(CHECKSUM(NEWID())) % 1000000 + 1, + N'S' + REPLICATE(CAST(ABS(CHECKSUM(NEWID())) % 100000 + 1 AS NVARCHAR(10)), 5) + FROM dbo.Dim1 AS D1 + CROSS JOIN dbo.Dim2 AS D2 + CROSS JOIN dbo.Dim3 AS D3; diff --git a/Sample_Databases/README.md b/Sample_Databases/README.md new file mode 100644 index 00000000..e7716533 --- /dev/null +++ b/Sample_Databases/README.md @@ -0,0 +1,71 @@ +# SQL Server Sample Databases and Datasets +Some databases you can download from this repository: https://rebrand.ly/sample-db + + +## Sample databases information + +| Name / Download links | SQL Server Version | Type | .Bak, MB | .Mdf, MB | Table count | +|-----------------------------------------|--------------------|----------|---------:|---------:|------------:| +| [StackOverflow 2010 Database] | >=2012 | OLTP | 9360 | 9104 | 9 | +| [StackOverflow Database] | >=2012 | OLTP | 137000 | | 9 | +| [WideWorldImporters OLTP] | ? | OLTP | 121 | 1024 | 29 | +| [WideWorldImporters DWH] | ? | DWH | 47 | 2048 | 48 | +| [AdventureWorks OLTP 2017] | 2017 | OLTP | 47 | 264 | 71 | +| [AdventureWorks OLTP 2016] | >=2016 | OLTP | 93 | 208 | 96 | +| [AdventureWorks OLTP 2016 Extended] | >=2016 | OLTP | 125 | 386 | 71 | +| [AdventureWorks OLTP 2014] | >=2014 | OLTP | 44 | 205 | 71 | +| [AdventureWorks OLTP 2012] | >=2012 | OLTP | 44 | 192 | 71 | +| [AdventureWorks DWH 2017] | >=2017 | DWH | 22 | 136 | 31 | +| [AdventureWorks DWH 2016] | >=2016 | DWH | 21 | 170 | 31 | +| [AdventureWorks DWH 2016 Extended] | >=2016 | DWH | 883 | 1466 | 33 | +| [AdventureWorks DWH 2014] | >=2014 | DWH | 21 | 170 | 31 | +| [AdventureWorks DWH 2012] | >=2012 | DWH | 21 | 124 | 31 | +| [AdventureWorks Multidimensional Model] | ? | AS | 21 | ? | ? | +| [AdventureWorks Tabular Model] | ? | AS | 21 | ? | ? | +| [Northwind Database][1] | 2000 | OLTP | - | ? | ? | +| [Pub Database][1] | 2000 | OLTP | - | ? | ? | + +[StackOverflow 2010 Database]:https://www.brentozar.com/archive/2015/10/how-to-download-the-stack-overflow-database-via-bittorrent/ +[StackOverflow Database]:https://www.brentozar.com/archive/2015/10/how-to-download-the-stack-overflow-database-via-bittorrent/ +[WideWorldImporters DWH]:https://github.com/Microsoft/sql-server-samples/releases/tag/wide-world-importers-v1.0 +[WideWorldImporters OLTP]:https://github.com/Microsoft/sql-server-samples/releases/tag/wide-world-importers-v1.0 +[AdventureWorks OLTP 2017]:https://github.com/Microsoft/sql-server-samples/releases/download/adventureworks/AdventureWorks2017.bak +[AdventureWorks OLTP 2016]:https://github.com/Microsoft/sql-server-samples/releases/download/adventureworks/AdventureWorks2016.bak +[AdventureWorks OLTP 2016 Extended]:https://github.com/Microsoft/sql-server-samples/releases/download/adventureworks/AdventureWorks2016_EXT.bak +[AdventureWorks OLTP 2014]:https://github.com/Microsoft/sql-server-samples/releases/download/adventureworks/AdventureWorks2014.bak +[AdventureWorks OLTP 2012]:https://github.com/Microsoft/sql-server-samples/releases/download/adventureworks/AdventureWorks2012.bak +[AdventureWorks DWH 2017]:https://github.com/Microsoft/sql-server-samples/releases/download/adventureworks/AdventureWorksDW2017.bak +[AdventureWorks DWH 2016]:https://github.com/Microsoft/sql-server-samples/releases/download/adventureworks/AdventureWorksDW2016.bak +[AdventureWorks DWH 2016 Extended]:https://github.com/Microsoft/sql-server-samples/releases/download/adventureworks/AdventureWorksDW2016_EXT.bak +[AdventureWorks DWH 2014]:https://github.com/Microsoft/sql-server-samples/releases/download/adventureworks/AdventureWorksDW2014.bak +[AdventureWorks DWH 2012]:https://github.com/Microsoft/sql-server-samples/releases/download/adventureworks/AdventureWorksDW2012.bak +[AdventureWorks Multidimensional Model]:https://github.com/Microsoft/sql-server-samples/releases/download/adventureworks-analysis-services/adventure-works-multidimensional-model-full-database-backup.zip +[AdventureWorks Tabular Model]:https://github.com/Microsoft/sql-server-samples/releases/download/adventureworks-analysis-services/adventure-works-tabular-model-1200-full-database-backup.zip +[1]:https://github.com/Microsoft/sql-server-samples/tree/master/samples/databases/northwind-pubs + +## Datasets + - [Data.gov](https://www.data.gov/) + - [Amazon product data](http://jmcauley.ucsd.edu/data/amazon/) (This dataset contains product reviews and metadata from Amazon, including 142.8 million reviews spanning May 1996 - July 2014) + + +## Useful Links + - [AdventureWorks Sample Databases and Scripts for SQL Server 2017, 2016, 2014 , 2012](https://github.com/Microsoft/sql-server-samples/releases/tag/adventureworks) + - [AdventureWorks for Analysis Services](https://github.com/Microsoft/sql-server-samples/releases/tag/adventureworks-analysis-services) + - [AdventureWorks Sample Databases and Scripts for SQL Server 2008 R2](https://github.com/Microsoft/sql-server-samples/releases/tag/adventureworks2008r2) + - [Microsoft SQL Server 2008 R2 SR1 Sample Databases](https://sqlserversamples.codeplex.com/releases/view/72278) + - [Thinking Big (Adventure)](http://sqlblog.com/blogs/adam_machanic/archive/2011/10/17/thinking-big-adventure.aspx) (by Adam Machanic) + - [WideWorldImporters Sample Database]() (Github Microsoft) + - [IoT Smart Grid sample - demonstrates how SQL Server 2016 memory optimized databases could be used to ingest a very high input data rate](https://github.com/Microsoft/sql-server-samples/releases/tag/iot-smart-grid-v2.0) (Github Microsoft) + - [In-Memory OLTP (WWI Sales Orders)](https://github.com/Microsoft/sql-server-samples/releases/tag/wwi-sales-orders-v0.5) (Github Microsoft) + - [Bigger Fact Table for Wide World Importers](http://www.sqlservercentral.com/blogs/koen-verbeeck/2016/08/12/bigger-fact-table-for-wide-world-importers/) (by Koen Verbeeck) + - [Contoso Retail Data Warehose](https://github.com/Microsoft/sql-server-samples/tree/master/samples/databases/contoso-data-warehouse) (Github) + - [How to Download the Stack Overflow Database via BitTorrent 2016-03](https://www.brentozar.com/archive/2015/10/how-to-download-the-stack-overflow-database-via-bittorrent/) (by Brent Ozar) + - [Stack Overflow Database version 2016-12-15](https://www.brentozar.com/archive/2017/01/updating-stack-overflow-demo-database/) + - [Stackexchange Source files - xml files](https://archive.org/download/stackexchange) + - [Git repo for SQL Server Reporting Services samples and community projects](https://github.com/Microsoft/Reporting-Services) + - [SQLSkills sample databases](https://www.sqlskills.com/sql-server-resources/sql-server-demos/) (also include SAMPLE CORRUPT DATABASES) + - [SQLIndexWorkbook Sample Database](http://www.littlekendra.com/downloads/get-the-sqlindexworkbook-database/) (by Little Kendra) + - [Itzik Ben-Gan Sample Databases](http://tsql.solidq.com/books/source_code/) (by Itzik Ben-Gan) + - [Orders: Open Source Sample Database](https://www.brentozar.com/orders-open-source-sample-database/) (by Brent Ozar) + - [BabbyNames Database](https://github.com/LitKnd/BabbyNames) (by Kendra Little) + - [SQL Server Sakila DB](https://www.jooq.org/sakila) (by jOQO) diff --git a/Sample_Databases/TSQLV4.sql b/Sample_Databases/TSQLV4.sql new file mode 100644 index 00000000..0ccc3960 Binary files /dev/null and b/Sample_Databases/TSQLV4.sql differ diff --git a/Scripts/Adding_Trace_Flags_To_Startup_Parameters.sql b/Scripts/Adding_Trace_Flags_To_Startup_Parameters.sql new file mode 100644 index 00000000..b3f5af8d --- /dev/null +++ b/Scripts/Adding_Trace_Flags_To_Startup_Parameters.sql @@ -0,0 +1,153 @@ +/****************************************************************************** +Source link: https://blog.waynesheffield.com/wayne/archive/2017/09/registry-sql-server-startup-parameters/ +Author: Wayne Sheffield + +Globally enable / disable the specified trace flags. +Use DBCC TRACEON/TRACEOFF to enable disable globally trace flags, then adjust +the SQL Server instance startup parameters for these trace flags. + +SQL Server startup parameters are stored in the registry at: +HKLM\Software\Microsoft\Microsoft SQL Server\MSSQL12.SQL2014\MSSQLServer\Parameters + +To use the xp_instance_reg... XPs, use: +HKLM\Software\Microsoft\MSSQLSERVER\MSSQLServer\Parameters. + +To use: +1. Add the Trace Flags that you want modified to the @TraceFlags table variable. +2. Set the @DebugLevel variable to 1 to see what will happen on your system first. +3. When satisified what will happen, set @DebugLevel to 0 to actually execute the statements. +******************************************************************************** + MODIFICATION LOG +******************************************************************************** +2016-08-03 WGS Initial Creation. +*******************************************************************************/ +SET NOCOUNT ON; +-- Declare and initialize variables. +-- To use with SQL 2005, cannot set the variables in the declare statement. +DECLARE @MaxValue INTEGER, + @SQLCMD VARCHAR(MAX), + @RegHive VARCHAR(50), + @RegKey VARCHAR(100), + @DebugLevel TINYINT; + +SET @RegHive = 'HKEY_LOCAL_MACHINE'; +SET @RegKey = 'Software\Microsoft\MSSQLSERVER\MSSQLServer\Parameters'; +SET @DebugLevel = 0; -- only makes changes if set to zero! + +-- Add the trace flags that you want changed here. +-- If enable = 1, DBCC TRACEON will be run; if enable = 0 then DBCC TRACEOFF will be run. +-- If enable_on_startup = 1, then this TF will be added to start up on service restart; +-- If enable_on_startup - 0, then this TF will be removed from starting up service restart +DECLARE @TraceFlags TABLE ( + TF INTEGER, + enable BIT, + enable_on_startup BIT, + TF2 AS '-T' + CONVERT(VARCHAR(15), TF) +); +INSERT INTO @TraceFlags (TF, enable, enable_on_startup) +-- To work with SQL 2005, cannot use a table value constructor. +-- So, use SELECT statements with UNION ALL for each TF to modify. +SELECT 1117, 1, 1 UNION ALL +SELECT 1118, 1, 1 UNION ALL +SELECT 1204, 0, 0 UNION ALL +SELECT 1222, 0, 0; + + +-- Get all of the arguments / parameters when starting up the service. +DECLARE @SQLArgs TABLE ( + Value VARCHAR(50), + Data VARCHAR(500), + ArgNum AS CONVERT(INTEGER, REPLACE(Value, 'SQLArg', ''))); +INSERT INTO @SQLArgs + EXECUTE master.sys.xp_instance_regenumvalues @RegHive, @RegKey; + + +-- Get the highest argument number that is currently set +SELECT @MaxValue = MAX(ArgNum) +FROM @SQLArgs; +RAISERROR('MaxValue: %i', 10, 1, @MaxValue) WITH NOWAIT; + +-- Disable specified trace flags +SELECT @SQLCMD = 'DBCC TRACEOFF(' + + STUFF((SELECT ',' + CONVERT(VARCHAR(15), TF) + FROM @TraceFlags + WHERE enable = 0 + ORDER BY TF + FOR XML PATH(''), TYPE).value('.','varchar(max)') + ,1,1,'') + ', -1);' + +IF @DebugLevel = 0 EXECUTE (@SQLCMD); +RAISERROR('Disable TFs Command: "%s"', 10, 1, @SQLCMD) WITH NOWAIT; + +-- Enable specified trace flags +SELECT @SQLCMD = 'DBCC TRACEON(' + + STUFF((SELECT ',' + CONVERT(VARCHAR(15), TF) + FROM @TraceFlags + WHERE enable = 1 + ORDER BY TF + FOR XML PATH(''), TYPE).value('.','varchar(max)') + ,1,1,'') + ', -1);' + +IF @DebugLevel = 0 EXECUTE (@SQLCMD); +RAISERROR('Enable TFs Command: "%s"', 10, 1, @SQLCMD) WITH NOWAIT; + +DECLARE cSQLParams CURSOR LOCAL FAST_FORWARD FOR +WITH cte AS +( + -- Current arguments, with new TFs added at the end. Get a row number to sort by. + SELECT *, + ROW_NUMBER() OVER (ORDER BY ISNULL(ArgNum, 999999999), TF) - 1 AS RN + FROM @SQLArgs arg + FULL OUTER JOIN @TraceFlags tf ON arg.Data = tf.TF2 +), cte2 AS +( + -- Use the row number to calc the SQLArg# for new TFs. + -- Use the original Value (SQLArg#) and Data for all rows if possible, + -- Otherwise use the calculated SQLArg# and the calculated TF2 column. + -- Only get the original non-TF-matched parameters, and the TFs set to be enabled + -- (existing startup TFs not in @TraceFlags are left alone). + SELECT ca.Value, + ca.Data + -- in case any TFs are removed, calculate new row numbers in order + -- to renumber the SQLArg values + , ROW_NUMBER() OVER (ORDER BY RN) - 1 AS RN2 + FROM cte + -- Again, for SQL 2005, use SELECT statement instead of VALUES. + CROSS APPLY (SELECT ISNULL(Value, 'SQLArg' + CONVERT(VARCHAR(15), RN)), + ISNULL(Data, TF2) ) ca(Value, Data) + WHERE ISNULL(enable_on_startup, 1) = 1 -- ISNULL handles non-TF parameters +) +-- The first three parameters are the location of the errorlog directory, +-- and the master database file locations. Ignore these. +-- This returns the remaining parameters that should be set. +-- Also return the highest number of parameters, so can determine if any need to be deleted. +SELECT 'SQLArg' + CONVERT(VARCHAR(15), RN2) AS Value, + Data, + MAX(RN2) OVER () AS MaxRN2 +FROM cte2 +WHERE RN2 > 2 +ORDER BY RN2; + +DECLARE @Value VARCHAR(50), + @Data VARCHAR(500), + @MaxRN2 INTEGER; +OPEN cSQLParams; +FETCH NEXT FROM cSQLParams INTO @Value, @Data, @MaxRN2; +WHILE @@FETCH_STATUS = 0 +BEGIN + IF @DebugLevel = 0 EXECUTE master.sys.xp_instance_regwrite @RegHive, @RegKey, @Value, 'REG_SZ', @Data; + RAISERROR('EXECUTE master.sys.xp_instance_regwrite ''%s'', ''%s'', ''%s'', ''REG_SZ'', ''%s''', 10, 1, @RegHive, @RegKey, @Value, @Data) WITH NOWAIT; + FETCH NEXT FROM cSQLParams INTO @Value, @Data, @MaxRN2; +END; +CLOSE cSQLParams; +DEALLOCATE cSQLParams; + +-- In case deleting more TFs than added, there may be extra SQLArg values left behind. +-- Need to delete the extras now. +WHILE @MaxValue > @MaxRN2 +BEGIN + SET @Value = 'SQLArg' + CONVERT(VARCHAR(15), @MaxValue); + IF @DebugLevel = 0 EXECUTE master.sys.xp_instance_regdeletevalue @RegHive, @RegKey, @Value; + RAISERROR('EXECUTE master.sys.xp_instance_regdeletevalue ''%s'', ''%s'', ''%s''', 10, 1, @RegHive, @RegKey, @Value) WITH NOWAIT; + SET @MaxValue = @MaxValue - 1; +END; diff --git a/Scripts/AutoGuessingForeignKeyConstraints.sql b/Scripts/AutoGuessingForeignKeyConstraints.sql new file mode 100644 index 00000000..0e925154 --- /dev/null +++ b/Scripts/AutoGuessingForeignKeyConstraints.sql @@ -0,0 +1,78 @@ +/* +Author: Daniel Hutmacher +Original link: https://sqlsunday.com/2017/04/10/guessing-fk-constraints +*/ + +DECLARE @referenced TABLE ( + [object_id] int NOT NULL, + index_id int NOT NULL, + column_name sysname NOT NULL, + user_type_id int NOT NULL, + PRIMARY KEY CLUSTERED ([object_id], index_id, column_name) +); + +INSERT INTO @referenced ([object_id], index_id, column_name, user_type_id) +SELECT t.[object_id], i.index_id, c.[name] AS column_name, c.user_type_id +FROM sys.tables AS t +INNER JOIN sys.indexes AS i ON t.[object_id]=i.[object_id] +INNER JOIN sys.index_columns AS ic ON i.[object_id]=ic.[object_id] AND i.index_id=ic.index_id +INNER JOIN sys.columns AS c ON ic.[object_id]=c.[object_id] AND ic.column_id=c.column_id +WHERE c.is_nullable=0 AND i.[type] IN (1, 2) AND i.is_unique=1 AND ic.key_ordinal>0; + +WITH referenced AS ( + SELECT *, COUNT(*) OVER ( + PARTITION BY [object_id], index_id) AS col_count + FROM @referenced), + + work AS ( + SELECT COUNT(*) OVER ( + PARTITION BY r.[object_id], r.index_id, t.[object_id]) AS referencing_count, + r.col_count AS referenced_count, r.index_id, + t.[object_id] AS referencing_tbl, c.[name] AS referencing_col, + r.[object_id] AS referenced_tbl, r.column_name AS referenced_col + FROM referenced AS r + INNER JOIN sys.tables AS t ON + r.[object_id]!=t.[object_id] + INNER JOIN sys.columns AS c ON + t.[object_id]=c.[object_id] AND + --- This is where the column naming logic + --- can be customized: + c.[name]=r.column_name AND + c.user_type_id=r.user_type_id) + +SELECT fk.[name] AS [Existing FK], + 'ALTER TABLE '+ts.[name]+'.'+t.[name]+ + ' ADD CONSTRAINT '+ + ISNULL(fk.[name], 'FK_'+rs.[name]+'_'+r.[name]+'_'+ts.[name]+'_'+t.[name])+ + ' FOREIGN KEY ('+x.referencing_columns+')'+ + ' REFERENCES '+rs.[name]+'.'+r.[name]+' ('+x.referenced_columns+')' AS Syntax +FROM work +INNER JOIN sys.tables AS r ON work.referenced_tbl=r.[object_id] +INNER JOIN sys.schemas AS rs ON r.[schema_id]=rs.[schema_id] +INNER JOIN sys.tables AS t ON work.referencing_tbl=t.[object_id] +INNER JOIN sys.schemas AS ts ON t.[schema_id]=ts.[schema_id] +LEFT JOIN sys.foreign_keys AS fk ON + work.referencing_tbl=fk.parent_object_id AND + work.referenced_tbl=fk.referenced_object_id +CROSS APPLY ( + SELECT + SUBSTRING(CAST(( + SELECT ', '+w.referencing_col + FROM work AS w + WHERE w.referencing_tbl=work.referencing_tbl AND + w.referenced_tbl=work.referenced_tbl AND + w.index_id=work.index_id + ORDER BY w.referencing_col + FOR XML PATH(''), TYPE) AS varchar(4000)), 3, 4000), + SUBSTRING(CAST(( + SELECT ', '+w.referenced_col + FROM work AS w + WHERE w.referencing_tbl=work.referencing_tbl AND + w.referenced_tbl=work.referenced_tbl AND + w.index_id=work.index_id + ORDER BY w.referencing_col + FOR XML PATH(''), TYPE) AS varchar(4000)), 3, 4000) + ) AS x(referencing_columns, referenced_columns) +WHERE work.referencing_count=work.referenced_count +GROUP BY ts.[name], t.[name], rs.[name], r.[name], x.referencing_columns, x.referenced_columns, fk.[name] +ORDER BY Syntax; diff --git a/Scripts/Auto_Generate_Database_Documentation.sql b/Scripts/Auto_Generate_Database_Documentation.sql new file mode 100644 index 00000000..27889cd1 --- /dev/null +++ b/Scripts/Auto_Generate_Database_Documentation.sql @@ -0,0 +1,185 @@ +/* +.EXAMPLE + Connect SSMS to the database in which you wish to create extended properties and hit F5. + +.DESCRIPTION: + This script will not create the extended properties, but auto generate the commands to do so. + The actual value (@value parameter) of the extended property still has to be manually input. + This script will automatically add the user and date to the extended property value. + +.NOTE + Version: 1.1 + Modified: 2018-03-30 23:40:00 UTC+3 Konstantin Taranov + Link: https://github.com/ktaranov/sqlserver-kit/blob/master/Scripts/Auto_Generate_Database_Documentation.sql + Created: 2015-11-25 + Author: (C) Andy Jones mailto:andrew@aejsoftware.co.uk +*/ +DECLARE @Parameter TABLE + ( + [type_desc] sysname NOT NULL, + parameter sysname NOT NULL, + val NVARCHAR(100) NOT NULL, + PRIMARY KEY ( [type_desc], parameter ) + ); + + +/*set up the data for each object type specifying the correct value for each parameter.*/ +INSERT INTO @Parameter + ( [type_desc], parameter, val ) +VALUES ( N'CHECK_CONSTRAINT', N'value', N'_replace_value' ), + ( N'CHECK_CONSTRAINT', N'level0type', N'SCHEMA' ), + ( N'CHECK_CONSTRAINT', N'level0name', N'_replace_schemaname' ), + ( N'CHECK_CONSTRAINT', N'level1type', N'TABLE' ), + ( N'CHECK_CONSTRAINT', N'level1name', N'_replace_parentname' ), + ( N'CHECK_CONSTRAINT', N'level2type', N'CONSTRAINT' ), + ( N'CHECK_CONSTRAINT', N'level2name', N'_replace_name' ), + ( N'FOREIGN_KEY_CONSTRAINT', N'value', N'_replace_value' ), + ( N'FOREIGN_KEY_CONSTRAINT', N'level0type', N'SCHEMA' ), + ( N'FOREIGN_KEY_CONSTRAINT', N'level0name', N'_replace_schemaname' ), + ( N'FOREIGN_KEY_CONSTRAINT', N'level1type', N'TABLE' ), + ( N'FOREIGN_KEY_CONSTRAINT', N'level1name', N'_replace_parentname' ), + ( N'FOREIGN_KEY_CONSTRAINT', N'level2type', N'CONSTRAINT' ), + ( N'FOREIGN_KEY_CONSTRAINT', N'level2name', N'_replace_name' ), + ( N'PRIMARY_KEY_CONSTRAINT', N'value', N'_replace_value' ), + ( N'PRIMARY_KEY_CONSTRAINT', N'level0type', N'SCHEMA' ), + ( N'PRIMARY_KEY_CONSTRAINT', N'level0name', N'_replace_schemaname' ), + ( N'PRIMARY_KEY_CONSTRAINT', N'level1type', N'TABLE' ), + ( N'PRIMARY_KEY_CONSTRAINT', N'level1name', N'_replace_parentname' ), + ( N'PRIMARY_KEY_CONSTRAINT', N'level2type', N'CONSTRAINT' ), + ( N'PRIMARY_KEY_CONSTRAINT', N'level2name', N'_replace_name' ), + ( N'UNIQUE_CONSTRAINT', N'value', N'_replace_value' ), + ( N'UNIQUE_CONSTRAINT', N'level0type', N'SCHEMA' ), + ( N'UNIQUE_CONSTRAINT', N'level0name', N'_replace_schemaname' ), + ( N'UNIQUE_CONSTRAINT', N'level1type', N'TABLE' ), + ( N'UNIQUE_CONSTRAINT', N'level1name', N'_replace_parentname' ), + ( N'UNIQUE_CONSTRAINT', N'level2type', N'CONSTRAINT' ), + ( N'UNIQUE_CONSTRAINT', N'level2name', N'_replace_name' ), + ( N'SQL_STORED_PROCEDURE', N'value', N'_replace_value' ), + ( N'SQL_STORED_PROCEDURE', N'level0type', N'SCHEMA' ), + ( N'SQL_STORED_PROCEDURE', N'level0name', N'_replace_schemaname' ), + ( N'SQL_STORED_PROCEDURE', N'level1type', N'PROCEDURE' ), + ( N'SQL_STORED_PROCEDURE', N'level1name', N'_replace_name' ), + ( N'SQL_STORED_PROCEDURE', N'level2type', N'NULL' ), + ( N'SQL_STORED_PROCEDURE', N'level2name', N'NULL' ), + ( N'SQL_INLINE_TABLE_VALUED_FUNCTION', N'value', N'_replace_value' ), + ( N'SQL_INLINE_TABLE_VALUED_FUNCTION', N'level0type', N'SCHEMA' ), + ( N'SQL_INLINE_TABLE_VALUED_FUNCTION', N'level0name', + N'_replace_schemaname' ), + ( N'SQL_INLINE_TABLE_VALUED_FUNCTION', N'level1type', N'FUNCTION' ), + ( N'SQL_INLINE_TABLE_VALUED_FUNCTION', N'level1name', N'_replace_name' ), + ( N'SQL_INLINE_TABLE_VALUED_FUNCTION', N'level2type', N'NULL' ), + ( N'SQL_INLINE_TABLE_VALUED_FUNCTION', N'level2name', N'NULL' ), + ( N'SQL_SCALAR_FUNCTION', N'value', N'_replace_value' ), + ( N'SQL_SCALAR_FUNCTION', N'level0type', N'SCHEMA' ), + ( N'SQL_SCALAR_FUNCTION', N'level0name', N'_replace_schemaname' ), + ( N'SQL_SCALAR_FUNCTION', N'level1type', N'FUNCTION' ), + ( N'SQL_SCALAR_FUNCTION', N'level1name', N'_replace_name' ), + ( N'SQL_SCALAR_FUNCTION', N'level2type', N'NULL' ), + ( N'SQL_SCALAR_FUNCTION', N'level2name', N'NULL' ), + ( N'USER_TABLE', N'value', N'_replace_value' ), + ( N'USER_TABLE', N'level0type', N'SCHEMA' ), + ( N'USER_TABLE', N'level0name', N'_replace_schemaname' ), + ( N'USER_TABLE', N'level1type', N'TABLE' ), + ( N'USER_TABLE', N'level1name', N'_replace_name' ), + ( N'USER_TABLE', N'level2type', N'NULL' ), + ( N'USER_TABLE', N'level2name', N'NULL' ), + ( N'INDEX', N'value', N'_replace_value' ), + ( N'INDEX', N'level0type', N'SCHEMA' ), + ( N'INDEX', N'level0name', N'_replace_schemaname' ), + ( N'INDEX', N'level1type', N'TABLE' ), + ( N'INDEX', N'level1name', N'_replace_parentname' ), + ( N'INDEX', N'level2type', N'INDEX' ), + ( N'INDEX', N'level2name', N'_replace_name' ), + ( N'COLUMN', N'value', N'_replace_value' ), + ( N'COLUMN', N'level0type', N'SCHEMA' ), + ( N'COLUMN', N'level0name', N'_replace_schemaname' ), + ( N'COLUMN', N'level1type', N'TABLE' ), + ( N'COLUMN', N'level1name', N'_replace_parentname' ), + ( N'COLUMN', N'level2type', N'COLUMN' ), + ( N'COLUMN', N'level2name', N'_replace_name' ); + + +WITH Obj /*union all objects on which to create extended properties. Objects, columns and indexes.*/ + AS ( SELECT parentname = COALESCE(OBJECT_NAME(obj.parent_object_id), + obj.name) , + name = obj.name , + schemaname = SCHEMA_NAME(obj.[schema_id]) , + [type_desc] = obj.[type_desc] , + major_id = obj.[object_id] , + minor_id = 0, +class_desc = N'OBJECT_OR_COLUMN' + FROM sys.objects AS obj + WHERE obj.is_ms_shipped = 0 + UNION ALL + SELECT parentname = OBJECT_NAME(c.[object_id]) , + name = c.name , + schemaname = OBJECT_SCHEMA_NAME(c.[object_id]) , + [type_desc] = N'COLUMN' , + major_id = c.[object_id] , + minor_id = c.column_id, +class_desc = N'OBJECT_OR_COLUMN' + FROM sys.columns AS c + WHERE OBJECTPROPERTYEX(c.[object_id], 'IsMSShipped') = 0 + AND OBJECTPROPERTYEX(c.[object_id], 'IsUserTable') = 1 --only document table columns, not views/functions. Remove predicate if required. + UNION ALL + SELECT parentname = OBJECT_NAME(i.[object_id]) , + name = i.name , + schemaname = OBJECT_SCHEMA_NAME(i.[object_id]) , + [type_desc] = N'INDEX' , + major_id = i.[object_id] , + minor_id = i.index_id, +class_desc = N'INDEX' + FROM sys.indexes AS i + WHERE OBJECTPROPERTYEX(i.[object_id], 'IsMSShipped') = 0 + AND i.is_primary_key = 0 --the constraint is already documented, don't document the index too. Remove predicate if required. + AND i.is_unique_constraint = 0 --the constraint is already documented, don't document the index too. Remove predicate if required. +AND i.[type_desc] <> N'HEAP' --the table is already documented, don't document the heap index row too. + ), +/*Join objects on which to create extended properties to the parameters, performing string replacement where necessary.*/ + Parameter_Value + AS ( SELECT o.major_id , + o.minor_id , +o.class_desc, + p.parameter , +[name] = N'MS_Description', + val = CASE p.val + WHEN N'_replace_schemaname' THEN o.schemaname + WHEN N'_replace_parentname' THEN o.parentname + WHEN N'_replace_name' THEN o.name + WHEN N'_replace_value' + THEN SYSTEM_USER + N' ' + + CONVERT(CHAR(10), CURRENT_TIMESTAMP, 103) + + N': ' + p.val + ELSE p.val + END + FROM @Parameter AS p + INNER JOIN Obj AS o ON o.[type_desc] = p.[type_desc] COLLATE DATABASE_DEFAULT + ) +/*pivot the result set so we have one correctly formatted extended property create statement per object.*/ + SELECT Add_Extended_Property = N'EXECUTE sp_addextendedproperty' + + N' @name = ''' + [name] + N''', @value = ' + [value] + + N', @level0type = ' + [level0type] + N', @level0name = ' + + [level0name] + N', @level1type = ' + [level1type] + + N', @level1name = ' + [level1name] + N', @level2type = ' + + [level2type] + N', @level2name = ' + [level2name] + N';' + FROM ( SELECT pv.major_id , + pv.minor_id , +pv.class_desc, +pv.[name], + pv.parameter , + val = CASE pv.val + WHEN N'NULL' THEN pv.val + ELSE '''' + pv.val + '''' + END + FROM Parameter_Value AS pv + WHERE NOT EXISTS ( SELECT * + FROM sys.extended_properties AS ep + WHERE ep.major_id = pv.major_id + AND ep.minor_id = pv.minor_id +AND ep.class_desc = pv.class_desc +AND ep.[name] = pv.[name] ) + ) AS SourceTable PIVOT +( MIN(val) FOR parameter IN ( [value], [level0type], [level0name], + [level1type], [level1name], [level2type], + [level2name] ) ) AS PivotTable + ORDER BY Add_Extended_Property; diff --git a/Scripts/Azure SQL Database Diagnostic Information Queries.sql b/Scripts/Azure SQL Database Diagnostic Information Queries.sql new file mode 100644 index 00000000..484d90e0 --- /dev/null +++ b/Scripts/Azure SQL Database Diagnostic Information Queries.sql @@ -0,0 +1,1249 @@ + +-- Azure SQL Database Diagnostic Information Queries +-- Glenn Berry +-- Last Modified: February 1, 2019 +-- https://www.sqlskills.com/blogs/glenn/ +-- http://sqlserverperformance.wordpress.com/ +-- Twitter: GlennAlanBerry + +-- Please listen to my Pluralsight courses +-- https://www.pluralsight.com/author/glenn-berry + +-- If you want to find all of our SQLskills SQL101 blog posts, check out https://www.sqlskills.com/help/sql101/ + + + +--****************************************************************************** +--* Copyright (C) 2019 Glenn Berry, SQLskills.com +--* All rights reserved. +--* +--* For more scripts and sample code, check out +--* https://www.sqlskills.com/blogs/glenn +--* +--* You may alter this code for your own *non-commercial* purposes. You may +--* republish altered code as long as you include this copyright and give due credit. +--* +--* +--* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF +--* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED +--* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A +--* PARTICULAR PURPOSE. +--* +--****************************************************************************** + +-- Make sure you are connected a user database, rather than the master system database + + +-- Server level queries ******************************* + +-- SQL and OS Version information for current instance (Query 1) (Version Info) +SELECT @@SERVERNAME AS [Server Name], @@VERSION AS [SQL Server and OS Version Info]; +------ + +-- Azure SQL Database does not expose as much information as on-premises SQL Server does + + + +-- Get logical instance-level configuration values for instance (Query 2) (Configuration Values) +SELECT name, value, value_in_use, minimum, maximum, [description], is_dynamic, is_advanced +FROM sys.configurations WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- All of these settings are read-only in Azure SQL Database, so they are informational only + + + +-- SQL Server NUMA Node information (Query 3) (SQL Server NUMA Info) +SELECT node_id, node_state_desc, memory_node_id, processor_group, cpu_count, online_scheduler_count, + idle_scheduler_count, active_worker_count, avg_load_balance, resource_monitor_state +FROM sys.dm_os_nodes WITH (NOLOCK) +WHERE node_state_desc <> N'ONLINE DAC' OPTION (RECOMPILE); +------ + +-- Gives you some useful information about the composition and relative load on your NUMA nodes +-- You want to see an equal number of schedulers on each NUMA node + + + +-- Calculates average stalls per read, per write, and per total input/output for each database file (Query 4) (IO Stalls by File) +SELECT DB_NAME(fs.database_id) AS [Database Name], CAST(fs.io_stall_read_ms/(1.0 + fs.num_of_reads) AS NUMERIC(16,1)) AS [avg_read_stall_ms], +CAST(fs.io_stall_write_ms/(1.0 + fs.num_of_writes) AS NUMERIC(16,1)) AS [avg_write_stall_ms], +CAST((fs.io_stall_read_ms + fs.io_stall_write_ms)/(1.0 + fs.num_of_reads + fs.num_of_writes) AS NUMERIC(16,1)) AS [avg_io_stall_ms], +fs.io_stall_read_ms, fs.num_of_reads, +fs.io_stall_write_ms, fs.num_of_writes, fs.io_stall_read_ms + fs.io_stall_write_ms AS [io_stalls], fs.num_of_reads + fs.num_of_writes AS [total_io], +io_stall_queued_read_ms AS [Resource Governor Total Read IO Latency (ms)], io_stall_queued_write_ms AS [Resource Governor Total Write IO Latency (ms)] +FROM sys.dm_io_virtual_file_stats(null,null) AS fs +ORDER BY avg_io_stall_ms DESC OPTION (RECOMPILE); +------ + +-- Helps determine which database files on the entire instance have the most I/O bottlenecks +-- This can help you decide whether certain LUNs are overloaded and whether you might +-- want to move some files to a different location or perhaps improve your I/O performance +-- These latency numbers include all file activity against each SQL Server +-- database file since SQL Server was last started + + + +-- Get I/O utilization by database (Query 5) (IO Usage By Database) +WITH Aggregate_IO_Statistics +AS +(SELECT DB_NAME(database_id) AS [Database Name], +CAST(SUM(num_of_bytes_read + num_of_bytes_written)/1048576 AS DECIMAL(12, 2)) AS io_in_mb +FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS [DM_IO_STATS] +WHERE database_id NOT IN (4, 5, 32767) +GROUP BY database_id) +SELECT ROW_NUMBER() OVER(ORDER BY io_in_mb DESC) AS [I/O Rank], [Database Name], + CAST(io_in_mb/ SUM(io_in_mb) OVER() * 100.0 AS DECIMAL(5,2)) AS [I/O Percent], + io_in_mb AS [Total I/O (MB)] +FROM Aggregate_IO_Statistics +ORDER BY [I/O Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most I/O resources on the instance + + +-- Get total buffer usage by database for current instance (Query 6) (Total Buffer Usage by Database) +-- This make take some time to run on a busy instance +WITH AggregateBufferPoolUsage +AS +(SELECT DB_NAME(database_id) AS [Database Name], COUNT(page_id) AS [Page Count], +CAST(COUNT(*) * 8/1024.0 AS DECIMAL (10,2)) AS [CachedSize], +AVG(read_microsec) AS [Avg Read Time (microseconds)] +FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) +WHERE database_id NOT IN (4, 5, 32767) +GROUP BY DB_NAME(database_id)) +SELECT ROW_NUMBER() OVER(ORDER BY CachedSize DESC) AS [Buffer Pool Rank], [Database Name], + CAST(CachedSize / SUM(CachedSize) OVER() * 100.0 AS DECIMAL(5,2)) AS [Buffer Pool Percent], + [Page Count], CachedSize AS [Cached Size (MB)], [Avg Read Time (microseconds)] +FROM AggregateBufferPoolUsage +ORDER BY [Buffer Pool Rank] OPTION (RECOMPILE); +------ + +-- Tells you how much memory (in the buffer pool) +-- is being used by each database on the instance + + + +-- Get a count of SQL connections by IP address (Query 7) (Connection Counts by IP Address) +SELECT ec.client_net_address, es.[program_name], es.[host_name], es.login_name, +COUNT(ec.session_id) AS [connection count] +FROM sys.dm_exec_sessions AS es WITH (NOLOCK) +INNER JOIN sys.dm_exec_connections AS ec WITH (NOLOCK) +ON es.session_id = ec.session_id +GROUP BY ec.client_net_address, es.[program_name], es.[host_name], es.login_name +ORDER BY ec.client_net_address, es.[program_name] OPTION (RECOMPILE); +------ + +-- This helps you figure where your database load is coming from +-- and verifies connectivity from other machines + +-- Solving Connectivity errors to SQL Server +-- https://bit.ly/2EgzoD0 + + + +-- Get Average Task Counts (run multiple times) (Query 8) (Avg Task Counts) +SELECT AVG(current_tasks_count) AS [Avg Task Count], +AVG(work_queue_count) AS [Avg Work Queue Count], +AVG(runnable_tasks_count) AS [Avg Runnable Task Count], +AVG(pending_disk_io_count) AS [Avg Pending DiskIO Count] +FROM sys.dm_os_schedulers WITH (NOLOCK) +WHERE scheduler_id < 255 OPTION (RECOMPILE); +------ + +-- Sustained values above 10 suggest further investigation in that area (depending on your Service Tier) +-- Avg Task Counts will be higher with lower service tiers +-- High Avg Task Counts are often caused by blocking/deadlocking or other resource contention + +-- Sustained values above 1 suggest further investigation in that area +-- High Avg Runnable Task Counts are a good sign of CPU pressure +-- High Avg Pending DiskIO Counts are a sign of disk pressure + + + +-- Detect blocking (run multiple times) (Query 9) (Detect Blocking) +SELECT t1.resource_type AS [lock type], DB_NAME(resource_database_id) AS [database], +t1.resource_associated_entity_id AS [blk object],t1.request_mode AS [lock req], -- lock requested +t1.request_session_id AS [waiter sid], t2.wait_duration_ms AS [wait time], -- spid of waiter +(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK) -- get sql for waiter +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) +WHERE r.session_id = t1.request_session_id) AS [waiter_batch], +(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, + (CASE WHEN r.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE r.statement_end_offset END - r.statement_start_offset)/2) +FROM sys.dm_exec_requests AS r WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt +WHERE r.session_id = t1.request_session_id) AS [waiter_stmt], -- statement blocked +t2.blocking_session_id AS [blocker sid], -- spid of blocker +(SELECT [text] FROM sys.sysprocesses AS p -- get sql for blocker +CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) +WHERE p.spid = t2.blocking_session_id) AS [blocker_batch] +FROM sys.dm_tran_locks AS t1 WITH (NOLOCK) +INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK) +ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE); +------ + +-- Helps troubleshoot blocking and deadlocking issues +-- The results will change from second to second on a busy system +-- You should run this query multiple times when you see signs of blocking + + + +-- Page Life Expectancy (PLE) value for each NUMA node in current instance (Query 10) (PLE by NUMA Node) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], instance_name, cntr_value AS [Page Life Expectancy] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Buffer Node%' -- Handles named instances +AND counter_name = N'Page life expectancy' OPTION (RECOMPILE); +------ + +-- PLE is a good measurement of internal memory pressure +-- Higher PLE is better. Watch the trend over time, not the absolute value +-- This will only return one row for non-NUMA systems + +-- Page Life Expectancy isnt what you think +-- https://bit.ly/2EgynLa + + +-- Memory Grants Pending value for current instance (Query 11) (Memory Grants Pending) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], cntr_value AS [Memory Grants Pending] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Memory Manager%' -- Handles named instances +AND counter_name = N'Memory Grants Pending' OPTION (RECOMPILE); +------ + +-- Run multiple times, and run periodically if you suspect you are under memory pressure +-- Memory Grants Pending above zero for a sustained period is a very strong indicator of internal memory pressure + + +-- Memory Clerk Usage for instance (Query 12) (Memory Clerk Usage) +-- Look for high value for CACHESTORE_SQLCP (Ad-hoc query plans) +SELECT TOP(10) mc.[type] AS [Memory Clerk Type], + CAST((SUM(mc.pages_kb)/1024.0) AS DECIMAL (15,2)) AS [Memory Usage (MB)] +FROM sys.dm_os_memory_clerks AS mc WITH (NOLOCK) +GROUP BY mc.[type] +ORDER BY SUM(mc.pages_kb) DESC OPTION (RECOMPILE); +------ + +-- MEMORYCLERK_SQLBUFFERPOOL was new for SQL Server 2012. It should be your highest consumer of memory + +-- CACHESTORE_SQLCP SQL Plans +-- These are cached SQL statements or batches that aren't in stored procedures, functions and triggers +-- Watch out for high values for CACHESTORE_SQLCP +-- Enabling 'optimize for ad hoc workloads' at the instance level can help reduce this + + +-- CACHESTORE_OBJCP Object Plans +-- These are compiled plans for stored procedures, functions and triggers + + + +-- Find single-use, ad-hoc and prepared queries that are bloating the plan cache (Query 13) (Ad hoc Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], t.[text] AS [Query Text], +cp.objtype AS [Object Type], cp.cacheobjtype AS [Cache Object Type], +cp.size_in_bytes/1024 AS [Plan Size in KB] +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +WHERE cp.cacheobjtype = N'Compiled Plan' +AND cp.objtype IN (N'Adhoc', N'Prepared') +AND cp.usecounts = 1 +ORDER BY cp.size_in_bytes DESC, DB_NAME(t.[dbid]) OPTION (RECOMPILE); +------ + +-- Gives you the text, type and size of single-use ad-hoc and prepared queries that waste space in the plan cache +-- Enabling forced parameterization for the database can help, but test first! + +-- Plan cache, adhoc workloads and clearing the single-use plan cache bloat +-- https://bit.ly/2EfYOkl + + + + + + +-- Database specific queries ***************************************************************** + + +-- Azure SQL Database size (Query 14) (Azure SQL DB Size) +SELECT CAST(SUM(CAST(FILEPROPERTY(name, 'SpaceUsed') AS bigint) * 8192.) / 1024 / 1024 AS DECIMAL(15,2)) AS [Database Size In MB], + CAST(SUM(CAST(FILEPROPERTY(name, 'SpaceUsed') AS bigint) * 8192.) / 1024 / 1024 / 1024 AS DECIMAL(15,2)) AS [Database Size In GB] +FROM sys.database_files WITH (NOLOCK) +WHERE [type_desc] = N'ROWS' OPTION (RECOMPILE); +------ + +-- This gives you the actual space usage within the data file only, to match what the Azure portal shows for the database size + +-- Determining Database Size in Azure SQL Database V12 +-- https://bit.ly/2JjrqNh + + + +-- Individual File Sizes and space available for current database (Query 15) (File Sizes and Space) +SELECT f.name AS [File Name] , f.physical_name AS [Physical Name], +CAST((f.size/128.0) AS DECIMAL(15,2)) AS [Total Size in MB], +CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) +AS [Available Space In MB], f.[file_id], fg.name AS [Filegroup Name], +f.is_percent_growth, f.growth, fg.is_default, fg.is_read_only, +fg.is_autogrow_all_files +FROM sys.database_files AS f WITH (NOLOCK) +LEFT OUTER JOIN sys.filegroups AS fg WITH (NOLOCK) +ON f.data_space_id = fg.data_space_id +ORDER BY f.[file_id] OPTION (RECOMPILE); +------ + +-- Look at how large and how full the files are and where they are located + +-- is_autogrow_all_files was new for SQL Server 2016. Equivalent to TF 1117 for user databases + +-- SQL Server 2016: Changes in default behavior for autogrow and allocations for tempdb and user databases +-- http://bit.ly/2evRZSR + + + +-- Log space usage for current database (Query 16) (Log Space Usage) +SELECT DB_NAME(lsu.database_id) AS [Database Name], db.recovery_model_desc AS [Recovery Model], + CAST(lsu.total_log_size_in_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Total Log Space (MB)], + CAST(lsu.used_log_space_in_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Used Log Space (MB)], + CAST(lsu.used_log_space_in_percent AS DECIMAL(10, 2)) AS [Used Log Space %], + CAST(lsu.log_space_in_bytes_since_last_backup/1048576.0 AS DECIMAL(10, 2)) AS [Used Log Space Since Last Backup (MB)], + db.log_reuse_wait_desc +FROM sys.dm_db_log_space_usage AS lsu WITH (NOLOCK) +INNER JOIN sys.databases AS db WITH (NOLOCK) +ON lsu.database_id = db.database_id +OPTION (RECOMPILE); +------ + +-- Look at log file size and usage, along with the log reuse wait description for the current database + + +-- Get VLF Counts for current database (Query 17) (VLF Counts) +SELECT [name] AS [Database Name], [VLF Count] +FROM sys.databases AS db WITH (NOLOCK) +CROSS APPLY (SELECT file_id, COUNT(*) AS [VLF Count] + FROM sys.dm_db_log_info(db.database_id) + GROUP BY file_id) AS li +WHERE [name] <> N'master' +ORDER BY [VLF Count] DESC OPTION (RECOMPILE); +------ + +-- High VLF counts can affect write performance to the log file +-- and they can make full database restores and crash recovery take much longer +-- Try to keep your VLF counts under 200 in most cases (depending on log file size) + +-- Important change to VLF creation algorithm in SQL Server 2014 +-- https://bit.ly/2Hsjbg4 + + + +-- Status of last VLF for current database (Query 18) (Last VLF Status) +SELECT TOP(1) DB_NAME(li.database_id) AS [Database Name], li.[file_id], + li.vlf_size_mb, li.vlf_sequence_number, li.vlf_active, li.vlf_status +FROM sys.dm_db_log_info(DB_ID()) AS li +ORDER BY vlf_sequence_number DESC OPTION (RECOMPILE); +------ + +-- Determine whether you will be able to shrink the transaction log file + +-- vlf_status Values +-- 0 is inactive +-- 1 is initialized but unused +-- 2 is active + + +-- Important database properties for current database (Query 19) (Database Properties) +SELECT db.[name] AS [Database Name], db.recovery_model_desc AS [Recovery Model], +db.state_desc, db.containment_desc, db.log_reuse_wait_desc AS [Log Reuse Wait Description], +db.[compatibility_level] AS [DB Compatibility Level], +db.is_mixed_page_allocation_on, db.page_verify_option_desc AS [Page Verify Option], +db.is_auto_create_stats_on, db.is_auto_update_stats_on, db.is_auto_update_stats_async_on, db.is_parameterization_forced, +db.snapshot_isolation_state_desc, db.is_read_committed_snapshot_on, db.is_auto_close_on, db.is_auto_shrink_on, +db.target_recovery_time_in_seconds, db.is_cdc_enabled, db.is_memory_optimized_elevate_to_snapshot_on, +db.delayed_durability_desc, db.is_auto_create_stats_incremental_on, +db.is_query_store_on, db.is_sync_with_backup, db.is_temporal_history_retention_enabled, +db.is_encrypted +FROM sys.databases AS db WITH (NOLOCK) +WHERE db.[name] <> N'master' +ORDER BY db.[name] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- What recovery models are you using? +-- What is the log reuse wait description? +-- What compatibility level are the databases on? +-- What is the Page Verify Option? (should be CHECKSUM) +-- Is Auto Update Statistics Asynchronously enabled? +-- Is Delayed Durability enabled? +-- Make sure auto_shrink and auto_close are not enabled! + + + +-- Get database scoped configuration values for current database (Query 20) (Database-scoped Configurations) +SELECT configuration_id, [name], [value] AS [value_for_primary] +FROM sys.database_scoped_configurations WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- This lets you see the value of these new properties for the current database + +-- Clear plan cache for current database +-- ALTER DATABASE SCOPED CONFIGURATION CLEAR PROCEDURE_CACHE; + +-- ALTER DATABASE SCOPED CONFIGURATION (Transact-SQL) +-- https://bit.ly/2sOH7nb + + +-- I/O Statistics by file for the current database (Query 21) (IO Stats By File) +SELECT DB_NAME(DB_ID()) AS [Database Name], df.name AS [Logical Name], vfs.[file_id], df.type_desc, +df.physical_name AS [Physical Name], CAST(vfs.size_on_disk_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Size on Disk (MB)], +vfs.num_of_reads, vfs.num_of_writes, vfs.io_stall_read_ms, vfs.io_stall_write_ms, +CAST(100. * vfs.io_stall_read_ms/(vfs.io_stall_read_ms + vfs.io_stall_write_ms) AS DECIMAL(10,1)) AS [IO Stall Reads Pct], +CAST(100. * vfs.io_stall_write_ms/(vfs.io_stall_write_ms + vfs.io_stall_read_ms) AS DECIMAL(10,1)) AS [IO Stall Writes Pct], +(vfs.num_of_reads + vfs.num_of_writes) AS [Writes + Reads], +CAST(vfs.num_of_bytes_read/1048576.0 AS DECIMAL(10, 2)) AS [MB Read], +CAST(vfs.num_of_bytes_written/1048576.0 AS DECIMAL(10, 2)) AS [MB Written], +CAST(100. * vfs.num_of_reads/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Reads Pct], +CAST(100. * vfs.num_of_writes/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Write Pct], +CAST(100. * vfs.num_of_bytes_read/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Read Bytes Pct], +CAST(100. * vfs.num_of_bytes_written/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Written Bytes Pct] +FROM sys.dm_io_virtual_file_stats(DB_ID(), NULL) AS vfs +INNER JOIN sys.database_files AS df WITH (NOLOCK) +ON vfs.[file_id]= df.[file_id] OPTION (RECOMPILE); +------ + +-- This helps you characterize your workload better from an I/O perspective for this database +-- It helps you determine whether you has an OLTP or DW/DSS type of workload + + +-- Get recent resource usage (Query 22) (Recent Resource Usage) +SELECT dtu_limit, cpu_limit, avg_cpu_percent, avg_data_io_percent, avg_log_write_percent, avg_memory_usage_percent, xtp_storage_percent, + max_worker_percent, max_session_percent, avg_login_rate_percent, end_time +FROM sys.dm_db_resource_stats WITH (NOLOCK) +ORDER BY end_time DESC OPTION (RECOMPILE); +------ + +-- Returns a row of usage metrics every 15 seconds, going back 64 minutes +-- The end_time column is UTC time + +-- sys.dm_db_resource_stats (Azure SQL Database) +-- https://bit.ly/2HaSpKn + + + +-- Get recent resource usage (Query 23) (Avg/Max Resource Usage) +SELECT AVG(avg_cpu_percent) AS [Average CPU Utilization In Percent], + MAX(avg_cpu_percent) AS [Maximum CPU Utilization In Percent], + AVG(avg_data_io_percent) AS [Average Data IO In Percent], + MAX(avg_data_io_percent) AS [Maximum Data IO In Percent], + AVG(avg_log_write_percent) AS [Average Log Write Utilization In Percent], + MAX(avg_log_write_percent) AS [Maximum Log Write Utilization In Percent], + AVG(avg_memory_usage_percent) AS [Average Memory Usage In Percent], + MAX(avg_memory_usage_percent) AS [Maximum Memory Usage In Percent] +FROM sys.dm_db_resource_stats WITH (NOLOCK) OPTION (RECOMPILE); +------ + + +-- Isolate top waits for this database since last restart or failover (Query 24) (Top DB Waits) +WITH [Waits] +AS (SELECT wait_type, wait_time_ms/ 1000.0 AS [WaitS], + (wait_time_ms - signal_wait_time_ms) / 1000.0 AS [ResourceS], + signal_wait_time_ms / 1000.0 AS [SignalS], + waiting_tasks_count AS [WaitCount], + 100.0 * wait_time_ms / SUM (wait_time_ms) OVER() AS [Percentage], + ROW_NUMBER() OVER(ORDER BY wait_time_ms DESC) AS [RowNum] + FROM sys.dm_db_wait_stats WITH (NOLOCK) + WHERE [wait_type] NOT IN ( + N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', + N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', + N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', + N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', + N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', + N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', + N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', + N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', + N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', + N'MEMORY_ALLOCATION_EXT', N'ONDEMAND_TASK_QUEUE', + N'PREEMPTIVE_HADR_LEASE_MECHANISM', N'PREEMPTIVE_SP_SERVER_DIAGNOSTICS', + N'PREEMPTIVE_ODBCOPS', + N'PREEMPTIVE_OS_LIBRARYOPS', N'PREEMPTIVE_OS_COMOPS', N'PREEMPTIVE_OS_CRYPTOPS', + N'PREEMPTIVE_OS_PIPEOPS', N'PREEMPTIVE_OS_AUTHENTICATIONOPS', + N'PREEMPTIVE_OS_GENERICOPS', N'PREEMPTIVE_OS_VERIFYTRUST', + N'PREEMPTIVE_OS_FILEOPS', N'PREEMPTIVE_OS_DEVICEOPS', N'PREEMPTIVE_OS_QUERYREGISTRY', + N'PREEMPTIVE_OS_WRITEFILE', + N'PREEMPTIVE_XE_CALLBACKEXECUTE', N'PREEMPTIVE_XE_DISPATCHER', + N'PREEMPTIVE_XE_GETTARGETSTATE', N'PREEMPTIVE_XE_SESSIONCOMMIT', + N'PREEMPTIVE_XE_TARGETINIT', N'PREEMPTIVE_XE_TARGETFINALIZE', + N'PREEMPTIVE_XHTTP', + N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'PWAIT_DIRECTLOGCONSUMER_GETNEXT', + N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', + N'QDS_ASYNC_QUEUE', + N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', + N'RESOURCE_GOVERNOR_IDLE', + N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', + N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', + N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', + N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', + N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', + N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', + N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'WAIT_XTP_RECOVERY', + N'XE_BUFFERMGR_ALLPROCESSED_EVENT', N'XE_DISPATCHER_JOIN', + N'XE_DISPATCHER_WAIT', N'XE_LIVE_TARGET_TVF', N'XE_TIMER_EVENT') + AND waiting_tasks_count > 0) +SELECT + MAX (W1.wait_type) AS [WaitType], + CAST (MAX (W1.Percentage) AS DECIMAL (5,2)) AS [Wait Percentage], + CAST ((MAX (W1.WaitS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgWait_Sec], + CAST ((MAX (W1.ResourceS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgRes_Sec], + CAST ((MAX (W1.SignalS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgSig_Sec], + CAST (MAX (W1.WaitS) AS DECIMAL (16,2)) AS [Total_Wait_Sec], + CAST (MAX (W1.ResourceS) AS DECIMAL (16,2)) AS [Resource_Sec], + CAST (MAX (W1.SignalS) AS DECIMAL (16,2)) AS [Signal_Sec], + MAX (W1.WaitCount) AS [Wait Count] +FROM Waits AS W1 +INNER JOIN Waits AS W2 +ON W2.RowNum <= W1.RowNum +GROUP BY W1.RowNum +HAVING SUM (W2.Percentage) - MAX (W1.Percentage) < 99 -- percentage threshold +OPTION (RECOMPILE); +------ + +-- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure + +-- SQL Server Wait Types Library (Paul Randal) +-- https://www.sqlskills.com/help/waits/ + +-- The SQL Server Wait Type Repository +-- http://blogs.msdn.com/b/psssql/archive/2009/11/03/the-sql-server-wait-type-repository.aspx + +-- Wait statistics, or please tell me where it hurts +-- https://www.sqlskills.com/blogs/paul/wait-statistics-or-please-tell-me-where-it-hurts/ + +-- SQL Server 2005 Performance Tuning using the Waits and Queues +-- http://technet.microsoft.com/en-us/library/cc966413.aspx + +-- sys.dm_os_wait_stats (Transact-SQL) +-- http://msdn.microsoft.com/en-us/library/ms179984(v=sql.120).aspx + + + +-- Get most frequently executed queries for this database (Query 25) (Query Execution Counts) +SELECT TOP(50) LEFT(t.[text], 50) AS [Short Query Text], qs.execution_count AS [Execution Count], +qs.total_logical_reads AS [Total Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.total_worker_time AS [Total Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.total_elapsed_time AS [Total Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +WHERE t.dbid = DB_ID() +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + + +-- Get top total worker time queries for this database (Query 26) (Top Worker Time Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 50), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_worker_time AS [Total Worker Time], qs.min_worker_time AS [Min Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.max_worker_time AS [Max Worker Time], +qs.min_elapsed_time AS [Min Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.max_elapsed_time AS [Max Elapsed Time], +qs.min_logical_reads AS [Min Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.max_logical_reads AS [Max Logical Reads], +qs.execution_count AS [Execution Count], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +WHERE t.dbid = DB_ID() +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + +-- Helps you find the most expensive queries from a CPU perspective for this database +-- Can also help track down parameter sniffing issues + + +-- Get top total logical reads queries for this database (Query 27) (Top Logical Reads Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 50), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_logical_reads AS [Total Logical Reads], +qs.min_logical_reads AS [Min Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.max_logical_reads AS [Max Logical Reads], +qs.min_worker_time AS [Min Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.max_worker_time AS [Max Worker Time], +qs.min_elapsed_time AS [Min Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.max_elapsed_time AS [Max Elapsed Time], +qs.execution_count AS [Execution Count], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +WHERE t.dbid = DB_ID() +ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + + +-- Helps you find the most expensive queries from a memory perspective for this database +-- Can also help track down parameter sniffing issues + + + +-- Get top average elapsed time queries for this database (Query 28) (Top Avg Elapsed Time Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.min_elapsed_time, qs.max_elapsed_time, qs.last_elapsed_time, +qs.execution_count AS [Execution Count], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.total_physical_reads/qs.execution_count AS [Avg Physical Reads], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +, qp.query_plan AS [Query Plan] -- comment out this column if copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +WHERE t.dbid = DB_ID() +ORDER BY qs.total_elapsed_time/qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Helps you find the highest average elapsed time queries for this database +-- Can also help track down parameter sniffing issues + + + +-- Top Cached SPs By Execution Count (Query 29) (SP Execution Counts) +SELECT TOP(100) p.name AS [SP Name], qs.execution_count AS [Execution Count], +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Tells you which cached stored procedures are called the most often +-- This helps you characterize and baseline your workload + + +-- Top Cached SPs By Avg Elapsed Time (Query 30) (SP Avg Elapsed Time) +SELECT TOP(25) p.name AS [SP Name], qs.min_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +qs.max_elapsed_time, qs.last_elapsed_time, qs.total_elapsed_time, qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], +qs.total_worker_time AS [TotalWorkerTime], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find high average elapsed time cached stored procedures that +-- may be easy to optimize with standard query tuning techniques + + + +-- Top Cached SPs By Total Worker time. Worker time relates to CPU cost (Query 31) (SP Worker Time) +SELECT TOP(25) p.name AS [SP Name], qs.total_worker_time AS [TotalWorkerTime], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a CPU perspective +-- You should look at this if you see signs of CPU pressure + + +-- Top Cached SPs By Total Logical Reads. Logical reads relate to memory pressure (Query 32) (SP Logical Reads) +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_reads AS [TotalLogicalReads], +qs.total_logical_reads/qs.execution_count AS [AvgLogicalReads],qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a memory perspective +-- You should look at this if you see signs of memory pressure + + +-- Top Cached SPs By Total Physical Reads. Physical reads relate to disk read I/O pressure (Query 33) (SP Physical Reads) +SELECT TOP(25) p.name AS [SP Name],qs.total_physical_reads AS [TotalPhysicalReads], +qs.total_physical_reads/qs.execution_count AS [AvgPhysicalReads], qs.execution_count, +qs.total_logical_reads,qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND qs.total_physical_reads > 0 +ORDER BY qs.total_physical_reads DESC, qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a read I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + + +-- Top Cached SPs By Total Logical Writes (Query 34) (SP Logical Writes) +-- Logical writes relate to both memory and disk I/O pressure +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_writes AS [TotalLogicalWrites], +qs.total_logical_writes/qs.execution_count AS [AvgLogicalWrites], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND qs.total_logical_writes > 0 +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_logical_writes DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a write I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + + +-- Lists the top statements by average input/output usage for the current database (Query 35) (Top IO Statements) +SELECT TOP(50) OBJECT_NAME(qt.objectid, dbid) AS [SP Name], +(qs.total_logical_reads + qs.total_logical_writes) /qs.execution_count AS [Avg IO], qs.execution_count AS [Execution Count], +SUBSTRING(qt.[text],qs.statement_start_offset/2, + (CASE + WHEN qs.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE qs.statement_end_offset + END - qs.statement_start_offset)/2) AS [Query Text] +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt +WHERE qt.[dbid] = DB_ID() +ORDER BY [Avg IO] DESC OPTION (RECOMPILE); +------ + +-- Helps you find the most expensive statements for I/O by SP + + + +-- Possible Bad NC Indexes (writes > reads) (Query 36) (Bad NC Indexes) +SELECT OBJECT_NAME(s.[object_id]) AS [Table Name], i.name AS [Index Name], i.index_id, +i.is_disabled, i.is_hypothetical, i.has_filter, i.fill_factor, +user_updates AS [Total Writes], user_seeks + user_scans + user_lookups AS [Total Reads], +user_updates - (user_seeks + user_scans + user_lookups) AS [Difference] +FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON s.[object_id] = i.[object_id] +AND i.index_id = s.index_id +WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 +AND s.database_id = DB_ID() +AND user_updates > (user_seeks + user_scans + user_lookups) +AND i.index_id > 1 +ORDER BY [Difference] DESC, [Total Writes] DESC, [Total Reads] ASC OPTION (RECOMPILE); +------ + +-- Look for indexes with high numbers of writes and zero or very low numbers of reads +-- Consider your complete workload, and how long your instance has been running +-- Investigate further before dropping an index! + + +-- Missing Indexes for current database by Index Advantage (Query 37) (Missing Indexes) +SELECT DISTINCT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact, +OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows] +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON p.[object_id] = mid.[object_id] +WHERE mid.database_id = DB_ID() +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Look at index advantage, last user seek time, number of user seeks to help determine source and importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + + +-- Find missing index warnings for cached plans in the current database (Query 38) (Missing Index Warnings) +-- Note: This query could take some time on a busy instance +SELECT TOP(25) OBJECT_NAME(objectid) AS [ObjectName], + cp.objtype, cp.usecounts, cp.size_in_bytes, query_plan +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp +WHERE CAST(query_plan AS NVARCHAR(MAX)) LIKE N'%MissingIndex%' +AND dbid = DB_ID() +ORDER BY cp.usecounts DESC OPTION (RECOMPILE); +------ + +-- Helps you connect missing indexes to specific stored procedures or queries +-- This can help you decide whether to add them or not + + +-- Breaks down buffers used by current database by object (table, index) in the buffer cache (Query 39) (Buffer Usage) +-- Note: This query could take some time on a busy instance +SELECT OBJECT_NAME(p.[object_id]) AS [Object Name], p.index_id, +CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], +COUNT(*) AS [BufferCount], p.[Rows] AS [Row Count], +p.data_compression_desc AS [Compression Type] +FROM sys.allocation_units AS a WITH (NOLOCK) +INNER JOIN sys.dm_os_buffer_descriptors AS b WITH (NOLOCK) +ON a.allocation_unit_id = b.allocation_unit_id +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON a.container_id = p.hobt_id +WHERE b.database_id = CONVERT(int, DB_ID()) +AND p.[object_id] > 100 +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'plan_%' +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'sys%' +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'xml_index_nodes%' +GROUP BY p.[object_id], p.index_id, p.data_compression_desc, p.[Rows] +ORDER BY [BufferCount] DESC OPTION (RECOMPILE); +------ + +-- Tells you what tables and indexes are using the most memory in the buffer cache +-- It can help identify possible candidates for data compression + + +-- Get Table names, row counts, and compression status for clustered index or heap (Query 40) (Table Sizes) +SELECT SCHEMA_NAME(o.Schema_ID) AS [Schema Name], OBJECT_NAME(p.object_id) AS [ObjectName], +SUM(p.Rows) AS [RowCount], data_compression_desc AS [CompressionType] +FROM sys.partitions AS p WITH (NOLOCK) +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON p.object_id = o.object_id +WHERE index_id < 2 --ignore the partitions from the non-clustered index if any +AND OBJECT_NAME(p.object_id) NOT LIKE N'sys%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'spt_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'queue_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filestream_tombstone%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'fulltext%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'ifts_comp_fragment%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filetable_updates%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'xml_index_nodes%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'sqlagent_job%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'plan_persist%' +GROUP BY SCHEMA_NAME(o.Schema_ID), p.object_id, data_compression_desc +ORDER BY SUM(p.Rows) DESC OPTION (RECOMPILE); +------ + +-- Gives you an idea of table sizes, and possible data compression opportunities + + + +-- Get some key table properties (Query 41) (Table Properties) +SELECT OBJECT_NAME(t.[object_id]) AS [ObjectName], p.[rows] AS [Table Rows], p.index_id, + p.data_compression_desc AS [Index Data Compression], + t.create_date, t.lock_on_bulk_load, + t.is_tracked_by_cdc, t.lock_escalation_desc, t.is_filetable, + t.is_memory_optimized, t.durability_desc, + t.temporal_type_desc +FROM sys.tables AS t WITH (NOLOCK) +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON t.[object_id] = p.[object_id] +WHERE OBJECT_NAME(t.[object_id]) NOT LIKE N'sys%' +ORDER BY OBJECT_NAME(t.[object_id]), p.index_id OPTION (RECOMPILE); +------ + +-- Gives you some good information about your tables +-- is_memory_optimized and durability_desc were new in SQL Server 2014 +-- temporal_type_desc, is_remote_data_archive_enabled, is_external are new in SQL Server 2016 + +-- sys.tables (Transact-SQL) +-- https://bit.ly/2Gk7998 + + + +-- When were Statistics last updated on all indexes? (Query 42) (Statistics Update) +SELECT SCHEMA_NAME(o.Schema_ID) + N'.' + o.[NAME] AS [Object Name], o.[type_desc] AS [Object Type], + i.[name] AS [Index Name], STATS_DATE(i.[object_id], i.index_id) AS [Statistics Date], + s.auto_created, s.no_recompute, s.user_created, s.is_incremental, s.is_temporary, + st.row_count, st.used_page_count +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON o.[object_id] = i.[object_id] +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.stats_id +INNER JOIN sys.dm_db_partition_stats AS st WITH (NOLOCK) +ON o.[object_id] = st.[object_id] +AND i.[index_id] = st.[index_id] +WHERE o.[type] IN ('U', 'V') +AND st.row_count > 0 +ORDER BY STATS_DATE(i.[object_id], i.index_id) DESC OPTION (RECOMPILE); +------ + +-- Helps discover possible problems with out-of-date statistics +-- Also gives you an idea which indexes are the most active + +-- sys.stats (Transact-SQL) +-- https://bit.ly/2GyAxrn + + + +-- Look at most frequently modified indexes and statistics (Query 43) (Volatile Indexes) +SELECT o.[name] AS [Object Name], o.[object_id], o.[type_desc], s.[name] AS [Statistics Name], + s.stats_id, s.no_recompute, s.auto_created, s.is_incremental, s.is_temporary, + sp.modification_counter, sp.[rows], sp.rows_sampled, sp.last_updated +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON s.object_id = o.object_id +CROSS APPLY sys.dm_db_stats_properties(s.object_id, s.stats_id) AS sp +WHERE o.[type_desc] NOT IN (N'SYSTEM_TABLE', N'INTERNAL_TABLE') +AND sp.modification_counter > 0 +ORDER BY sp.modification_counter DESC, o.name OPTION (RECOMPILE); +------ + +-- This helps you understand your workload and make better decisions about +-- things like data compression and adding new indexes to a table + + + +-- Get fragmentation info for all indexes above a certain size in the current database (Query 44) (Index Fragmentation) +-- Note: This query could take some time on a very large database +SELECT DB_NAME(ps.database_id) AS [Database Name], SCHEMA_NAME(o.[schema_id]) AS [Schema Name], +OBJECT_NAME(ps.OBJECT_ID) AS [Object Name], i.[name] AS [Index Name], ps.index_id, +ps.index_type_desc, ps.avg_fragmentation_in_percent, +ps.fragment_count, ps.page_count, i.fill_factor, i.has_filter, +i.filter_definition, i.[allow_page_locks] +FROM sys.dm_db_index_physical_stats(DB_ID(),NULL, NULL, NULL , N'LIMITED') AS ps +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ps.[object_id] = i.[object_id] +AND ps.index_id = i.index_id +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON i.[object_id] = o.[object_id] +WHERE ps.database_id = DB_ID() +AND ps.page_count > 2500 +ORDER BY ps.avg_fragmentation_in_percent DESC OPTION (RECOMPILE); +------ + +-- Helps determine whether you have framentation in your relational indexes +-- and how effective your index maintenance strategy is + + +--- Index Read/Write stats (all tables in current DB) ordered by Reads (Query 45) (Overall Index Usage - Reads) +SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.[name] AS [IndexName], i.index_id, + s.user_seeks, s.user_scans, s.user_lookups, + s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], + s.user_updates AS [Writes], + i.[type_desc] AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, + s.last_user_scan, s.last_user_lookup, s.last_user_seek +FROM sys.indexes AS i WITH (NOLOCK) +LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 +ORDER BY s.user_seeks + s.user_scans + s.user_lookups DESC OPTION (RECOMPILE); -- Order by reads +------ + +-- Show which indexes in the current database are most active for Reads + + +--- Index Read/Write stats (all tables in current DB) ordered by Writes (Query 46) (Overall Index Usage - Writes) +SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.[name] AS [IndexName], i.index_id, + s.user_updates AS [Writes], s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], + i.[type_desc] AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, + s.last_system_update, s.last_user_update +FROM sys.indexes AS i WITH (NOLOCK) +LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 +ORDER BY s.user_updates DESC OPTION (RECOMPILE); -- Order by writes +------ + +-- Show which indexes in the current database are most active for Writes + + +-- Get in-memory OLTP index usage (Query 47) (XTP Index Usage) +SELECT OBJECT_NAME(i.[object_id]) AS [Object Name], i.index_id, i.[name] AS [Index Name], + i.[type_desc], xis.scans_started, xis.scans_retries, + xis.rows_touched, xis.rows_returned +FROM sys.dm_db_xtp_index_stats AS xis WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON i.[object_id] = xis.[object_id] +AND i.index_id = xis.index_id +ORDER BY OBJECT_NAME(i.[object_id]) OPTION (RECOMPILE); +------ + +-- This gives you some index usage statistics for in-memory OLTP +-- Returns no data if you are not using in-memory OLTP + +-- Guidelines for Using Indexes on Memory-Optimized Tables +-- https://bit.ly/2GCP8lF + + + +-- Look at Columnstore index physical statistics (Query 48) (Columnstore Index Physical Stat) +SELECT OBJECT_NAME(ps.object_id) AS [TableName], + i.[name] AS [IndexName], ps.index_id, ps.partition_number, + ps.delta_store_hobt_id, ps.state_desc, ps.total_rows, ps.size_in_bytes, + ps.trim_reason_desc, ps.generation, ps.transition_to_compressed_state_desc, + ps.has_vertipaq_optimization, ps.deleted_rows, + 100 * (ISNULL(ps.deleted_rows, 0))/ps.total_rows AS [Fragmentation] +FROM sys.dm_db_column_store_row_group_physical_stats AS ps WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ps.object_id = i.object_id +AND ps.index_id = i.index_id +ORDER BY ps.object_id, ps.partition_number, ps.row_group_id OPTION (RECOMPILE); +------ + +-- sys.dm_db_column_store_row_group_physical_stats (Transact-SQL) +-- https://bit.ly/2q276XQ + + + +-- Get lock waits for current database (Query 49) (Lock Waits) +SELECT o.name AS [table_name], i.name AS [index_name], ios.index_id, ios.partition_number, + SUM(ios.row_lock_wait_count) AS [total_row_lock_waits], + SUM(ios.row_lock_wait_in_ms) AS [total_row_lock_wait_in_ms], + SUM(ios.page_lock_wait_count) AS [total_page_lock_waits], + SUM(ios.page_lock_wait_in_ms) AS [total_page_lock_wait_in_ms], + SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) AS [total_lock_wait_in_ms] +FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) AS ios +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON ios.[object_id] = o.[object_id] +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ios.[object_id] = i.[object_id] +AND ios.index_id = i.index_id +WHERE o.[object_id] > 100 +GROUP BY o.name, i.name, ios.index_id, ios.partition_number +HAVING SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) > 0 +ORDER BY total_lock_wait_in_ms DESC OPTION (RECOMPILE); +------ + +-- This query is helpful for troubleshooting blocking and deadlocking issues + + + +-- Look at UDF execution statistics (Query 50) (UDF Statistics) +SELECT OBJECT_NAME(object_id) AS [Function Name], total_worker_time, + execution_count, total_elapsed_time, + total_elapsed_time/execution_count AS [avg_elapsed_time], + last_elapsed_time, last_execution_time, cached_time +FROM sys.dm_exec_function_stats WITH (NOLOCK) +WHERE database_id = DB_ID() +ORDER BY total_worker_time DESC OPTION (RECOMPILE); +------ + + +-- Helps you investigate scalar UDF performance issues + +-- sys.dm_exec_function_stats (Transact-SQL) +-- https://bit.ly/2q1Q6BM + + + + +-- Get QueryStore Options for this database (Query 51) (QueryStore Options) +SELECT actual_state_desc, desired_state_desc, + current_storage_size_mb, [max_storage_size_mb], + query_capture_mode_desc, size_based_cleanup_mode_desc +FROM sys.database_query_store_options WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Requires that QueryStore is enabled for this database + +-- Tuning Workload Performance with Query Store +-- https://bit.ly/1kHSl7w + + +-- Get highest aggregate duration queries over last hour (Query 52) (High Aggregate Duration Queries) +WITH AggregatedDurationLastHour +AS +(SELECT q.query_id, SUM(count_executions * avg_duration) AS total_duration, + COUNT (distinct p.plan_id) AS number_of_plans + FROM sys.query_store_query_text AS qt WITH (NOLOCK) + INNER JOIN sys.query_store_query AS q WITH (NOLOCK) + ON qt.query_text_id = q.query_text_id + INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) + ON q.query_id = p.query_id + INNER JOIN sys.query_store_runtime_stats AS rs WITH (NOLOCK) + ON rs.plan_id = p.plan_id + INNER JOIN sys.query_store_runtime_stats_interval AS rsi WITH (NOLOCK) + ON rsi.runtime_stats_interval_id = rs.runtime_stats_interval_id + WHERE rsi.start_time >= DATEADD(hour, -1, GETUTCDATE()) + AND rs.execution_type_desc = N'Regular' + GROUP BY q.query_id), +OrderedDuration AS +(SELECT query_id, total_duration, number_of_plans, + ROW_NUMBER () OVER (ORDER BY total_duration DESC, query_id) AS RN + FROM AggregatedDurationLastHour) +SELECT OBJECT_NAME(q.object_id) AS [Containing Object], qt.query_sql_text, +od.total_duration AS [Total Duration (microsecs)], +od.number_of_plans AS [Plan Count], +p.is_forced_plan, p.is_parallel_plan, p.is_trivial_plan, +q.query_parameterization_type_desc, p.[compatibility_level], +p.last_compile_start_time, q.last_execution_time, +CONVERT(xml, p.query_plan) AS query_plan_xml +FROM OrderedDuration AS od +INNER JOIN sys.query_store_query AS q WITH (NOLOCK) +ON q.query_id = od.query_id +INNER JOIN sys.query_store_query_text AS qt WITH (NOLOCK) +ON q.query_text_id = qt.query_text_id +INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) +ON q.query_id = p.query_id +WHERE od.RN <= 50 +ORDER BY total_duration DESC OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Requires that QueryStore is enabled for this database + + +-- Get input buffer information for the current database (Query 53) (Input Buffer) +SELECT es.session_id, DB_NAME(es.database_id) AS [Database Name], + es.login_time, es.cpu_time, es.logical_reads, + es.[status], ib.event_info AS [Input Buffer] +FROM sys.dm_exec_sessions AS es WITH (NOLOCK) +CROSS APPLY sys.dm_exec_input_buffer(es.session_id, NULL) AS ib +WHERE es.database_id = DB_ID() +AND es.session_id > 50 +AND es.session_id <> @@SPID OPTION (RECOMPILE); +------ + +-- Gives you input buffer information from all non-system sessions for the current database +-- Replaces DBCC INPUTBUFFER + +-- New DMF for retrieving input buffer in SQL Server +-- https://bit.ly/2uHKMbz + + + +-- Get any resumable index rebuild operation information (Query 54) (Resumable Index Rebuild) +SELECT OBJECT_NAME(iro.object_id) AS [Object Name], iro.index_id, iro.name AS [Index Name], + iro.sql_text, iro.last_max_dop_used, iro.partition_number, iro.state_desc, iro.start_time, iro.percent_complete +FROM sys.index_resumable_operations AS iro WITH (NOLOCK) +OPTION (RECOMPILE); +------ + +-- index_resumable_operations (Transact-SQL) +-- https://bit.ly/2pYSWqq + + +-- Get database automatic tuning options (Query 55) (Automatic Tuning Options) +SELECT [name], desired_state_desc, actual_state_desc, reason_desc +FROM sys.database_automatic_tuning_options WITH (NOLOCK) +OPTION (RECOMPILE); +------ + +-- sys.database_automatic_tuning_options (Transact-SQL) +-- https://bit.ly/2FHhLkL + + + +-- Get geo-replication link status for all secondary databases (Query 56) (Geo-Replication Link Status) +SELECT link_guid, partner_server, partner_database, last_replication, + replication_lag_sec, replication_state_desc, role_desc, secondary_allow_connections_desc +FROM sys.dm_geo_replication_link_status WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- sys.dm_geo_replication_link_status (Azure SQL Database) +-- https://bit.ly/2GwIqC2 + + + +-- Retrieve some Azure SQL Database properties (Query 57) (Azure SQL DB Properties) +SELECT DATABASEPROPERTYEX (DB_NAME(DB_ID()), 'Edition') AS [Database Edition], + DATABASEPROPERTYEX (DB_NAME(DB_ID()), 'ServiceObjective') AS [Service Objective], + DATABASEPROPERTYEX (DB_NAME(DB_ID()), 'MaxSizeInBytes') AS [Max Size In Bytes], + DATABASEPROPERTYEX (DB_NAME(DB_ID()), 'IsXTPSupported') AS [Is XTP Supported] + OPTION (RECOMPILE); +------ + +-- DATABASEPROPERTYEX (Transact-SQL) +-- https://bit.ly/2ItexPg + + +-- These five Pluralsight Courses go into more detail about how to run these queries and interpret the results + +-- SQL Server 2017: Diagnosing Performance Issues with DMVs +-- https://bit.ly/2FqCeti + +-- SQL Server 2017: Diagnosing Configuration Issues with DMVs +-- https://bit.ly/2MSUDUL + +-- SQL Server 2014 DMV Diagnostic Queries Part 1 +-- https://bit.ly/2plxCer + +-- SQL Server 2014 DMV Diagnostic Queries Part 2 +-- https://bit.ly/2IuJpzI + +-- SQL Server 2014 DMV Diagnostic Queries Part 3 +-- https://bit.ly/2FIlCPb + + + +-- Sign up for Microsoft Visual Studio Dev Essentials and get a free three month pass to Pluralsight + +-- Microsoft Visual Studio Dev Essentials +-- https://bit.ly/1q6xbDL + + +-- Sign up for Microsoft Azure Essentials and get lots of free Azure usage credits, MCP exam voucher, three month Pluralsight subscription + +-- Microsoft Azure Essentials +-- https://bit.ly/2KH91dQ + + diff --git "a/Scripts/Backup_Restore_What\342\200\231s_My_Status.sql" "b/Scripts/Backup_Restore_What\342\200\231s_My_Status.sql" new file mode 100644 index 00000000..9d760042 --- /dev/null +++ "b/Scripts/Backup_Restore_What\342\200\231s_My_Status.sql" @@ -0,0 +1,31 @@ +/* +Author: Chris Yates +Original link: http://www.sqlservercentral.com/blogs/the-sql-professor/2017/01/26/backuprestorewhats-my-status/ +*/ + +--By checking only for the restore and backup command lines you will be able to quickly identify your session id +--and get an approximate ETA and percentage complete. you can tinker of course with the estimations +--if you’d like or pull back more fields. This is just a simple technique in utilizing a helpful DMV to provide info quickly. +SELECT r.session_id + , r.command + , r.start_time + , r.status + , CONVERT(NUMERIC(6, 2), r.percent_complete) AS [Percent Complete] + , CONVERT(VARCHAR(20), DATEADD(ms, r.estimated_completion_time , GETDATE()), 20) AS [ETA Completion Time] + , CONVERT(NUMERIC(10, 2), r.total_elapsed_time / 1000.0 / 60.0) AS [Elapsed Min] + , CONVERT(NUMERIC(10, 2), r.total_elapsed_time / 1000.0 / 60.0 / 60.0) AS [Elapsed Hours] + , CONVERT(NUMERIC(10, 2), r.estimated_completion_time / 1000.0 / 60.0) AS [ETA Min] + , CONVERT(NUMERIC(10, 2), r.estimated_completion_time / 1000.0 / 60.0/ 60.0) AS [ETA Hours] + , CONVERT(VARCHAR(1000), ( + SELECT SUBSTRING(TEXT, r.statement_start_offset / 2, CASE + WHEN r.statement_end_offset = -1 + THEN 1000 + ELSE (r.statement_end_offset - r.statement_start_offset) / 2 + END) + FROM sys.dm_exec_sql_text(sql_handle) + )) AS TSQLStatement +FROM sys.dm_exec_requests r +WHERE command IN ( + 'RESTORE DATABASE' + , 'BACKUP DATABASE' + ); diff --git a/Scripts/Benchmark_TSQL.R b/Scripts/Benchmark_TSQL.R new file mode 100644 index 00000000..08dacbaf --- /dev/null +++ b/Scripts/Benchmark_TSQL.R @@ -0,0 +1,296 @@ +#' Benchmarking TSQL statements. +#' +#' @description Run SQL statement specified times, show results, insert execution details into table master.dbo.BenchmarkTSQL (create if not exist). +#' +#' @param tsqlStatement input character vector +#' TSQL statement for benchmarking +#' @param trustedConnection input boolean vector +#' Using trusted connection +#' @param clearCache input boolean vector +#' Clear cached plan for TSQL statement +#' @param calcMedian input boolean vector +#' Calculate pseudo median of execution time +#' @param printStepInfo input boolean vector +#' PRINT detailed step information: step count, start time, end time, duration +#' @param saveResults input boolean vector +#' Save benchmark details to master.dbo.BenchmarkTSQL table if saveResults = 1. +#' @param datetimeFun input character vector +#' Define using datetime function, possible values of functions: SYSDATETIME, SYSUTCDATETIME. +#' See details https://docs.microsoft.com/en-us/sql/t-sql/functions/date-and-time-data-types-and-functions-transact-sql +#' @param durationAccuracy input character vector +#' Duration accuracy calculation, possible values: ns, mcs, ms, ss, mi, hh, wk, dd. +#' See DATEDIFF https://docs.microsoft.com/en-us/sql/t-sql/functions/datediff-transact-sql +#' @param times input integer vector +#' Number of execution TSQL statement. +#' +#' @return print benchmark result +#' +#' @author Konstantin Taranov +#' +#' @examples +#' BenchmarkTSQL("SELECT * FROM sys.databases", trustedConnection=TRUE, clearCache=1, times=10) +#' BenchmarkTSQL("SELECT * FROM sys.databases", trustedConnection=TRUE, clearCache=1, times=3, datetimeFun='SYSUTCDATETIME', calcMedian=TRUE, durationAccuracy='mcs') +#' +#' @export + +BenchmarkTSQL <- function(tsqlStatement, + trustedConnection = TRUE, + clearCache = FALSE, + calcMedian = FALSE, + printStepInfo = TRUE, + saveResults = FALSE, + datetimeFun = 'SYSDATETIME', + durationAccuracy = 'ms', + times = 10L) { + + library("RODBC") + options(digits = 7) + + if (!datetimeFun %in% list('SYSDATETIME', 'SYSUTCDATETIME')){ + stop( + print(paste0( + "For 'datetimeFun' allowed only 'SYSUTCDATETIME' and 'SYSDATETIME'. For details see:", + "https://docs.microsoft.com/en-us/sql/t-sql/functions/date-and-time-data-types-and-functions-transact-sql") + ) + ) + } + + if (!durationAccuracy %in% c('ns' + ,'mcs' + ,'ms' + ,'ss' + ,'mi' + ,'hh' + ,'wk' + ,'dd')){ + stop( + print(paste0( + "For 'durationAccuracy' allowed only ns, mcs, ms, ss, mi, hh, wk, dd. For details see:", + "https://docs.microsoft.com/en-us/sql/t-sql/functions/datediff-transact-sql") + ) + ) + } + + if (trustedConnection <- TRUE) { + connectionString <- + "driver={SQL Server};server=.;database=master;trusted_connection=true;" + } else{ + databaseLogin <- readline(prompt = "Enter a login: ") + databasePassword <- readline(prompt = "Enter a password: ") + connectionString <- + gsub( + "__pwd__", + databasePassword, + "Driver=ODBC Driver 11 for SQL Server;Server=.;Database=master;Uid=__login__;pwd=__pwd__;" + ) + connectionString <- + gsub("__login__", + databaseLogin, + connectionString) + } + + + ch <- odbcDriverConnect(connection = connectionString) + + original_login <- + sqlQuery( + ch, + " + DECLARE @originalLogin SYSNAME = ORIGINAL_LOGIN(); + SELECT ORIGINAL_LOGIN() AS OriginalLogin;", + errors = TRUE + ) + tsqlstatement_guid <- + sqlQuery( + ch, + " + DECLARE @TSQLStatementGUID VARCHAR(36) = NEWID(); + SELECT @TSQLStatementGUID AS TSQLStatementGUID;", + errors = TRUE + ) + + startTime <- Sys.time() + if (datetimeFun == 'SYSUTCDATETIME') + startTime <- as.POSIXlt.POSIXct(Sys.time(), tz='UTC') + print( + paste0( + "Benchmark started at ", startTime, " by ", original_login$OriginalLogin)) + + timetemp <- NULL + for (i in 1L:times) { + if (clearCache) { + tsql <- " + DECLARE @plan_handle VARBINARY(64); + DECLARE @tsqlStatement NVARCHAR(MAX) = N'@tsqlStatementIN'; + + SELECT @plan_handle = plan_handle + FROM sys.dm_exec_cached_plans + CROSS APPLY sys.dm_exec_sql_text(plan_handle) + WHERE [text] LIKE @tsqlStatement; + -- LIKE instead = (equal) because = ignore trailing spaces + + IF @plan_handle IS NOT NULL DBCC FREEPROCCACHE (@plan_handle); + " + + sqlQuery( + ch, + gsub( + "@tsqlStatementIN", + tsqlStatement, + tsql), + errors = TRUE, + as.is = TRUE + ) + } + sqlQuery( + ch, + gsub( + "__datetimeFun__", + datetimeFun, + gsub( + "__durationAccuracy__", + durationAccuracy, + paste0( + " + DECLARE @timestart DATETIME2(7) = __datetimeFun__();\n + IF OBJECT_ID('tempdb..#timetemp', 'U') IS NOT NULL DROP TABLE #timetemp\n", + " + ", tsqlStatement, "\n", + " + SELECT '", tsqlstatement_guid$TSQLStatementGUID,"' AS TSQLSTATEMENTGUID, + ", i," AS STEPROWNUMBER, + CAST('", startTime,"' AS DATETIME2(7)) AS STARTTIMESTAMP, + @timestart AS RUNTIMESTAMP, + CAST(__datetimeFun__() AS DATETIME2(7)) AS FINISHTIMESTAMP, + CAST(DATEDIFF(__durationAccuracy__, @timestart, CAST(__datetimeFun__() AS DATETIME2(7))) AS BIGINT) AS DURATION, + '", tsqlStatement, ";' AS TSQLSTATEMENT, + '", clearCache, "' AS CLEARCACHE, + '", printStepInfo, "' AS PRINTSTEPINFO, + '", durationAccuracy, "' AS DURATIONACCURACY, + '", original_login$OriginalLogin, "' AS ORIGINALLOGIN + INTO #timetemp;" + ) + ) + ), + errors = TRUE, + as.is = TRUE + ) + timetemp <- + rbind( + timetemp, + sqlQuery( + ch, + " + SELECT RUNTIMESTAMP + , FINISHTIMESTAMP + , DURATION + FROM #timetemp", + errors = TRUE + ) + ) + + stepStart <- + strptime(timetemp$RUNTIMESTAMP[nrow(timetemp)], format = "%Y-%m-%d %H:%M:%OS") + stepEnd <- + strptime(timetemp$FINISHTIMESTAMP[nrow(timetemp)], format = "%Y-%m-%d %H:%M:%OS") + duration <- + timetemp$DURATION[nrow(timetemp)] + + if (printStepInfo){ + print( + paste0( + "Run ", + i, + ", start: ", + stepStart, + ", finish: ", + stepEnd, + ", duration: ", + duration, + " ", + durationAccuracy + ) + ) + } + if (saveResults) + sqlQuery( + ch, + "IF OBJECT_ID('master.dbo.BenchmarkTSQL', 'U') IS NULL + BEGIN + CREATE TABLE master.dbo.BenchmarkTSQL( + BenchmarkTSQLID INT IDENTITY NOT NULL + , TSQLStatementGUID VARCHAR(36) NOT NULL + , StepRowNumber INT NOT NULL + , StartTimeStamp DATETIME2(7) NOT NULL + , RunTimeStamp DATETIME2(7) NOT NULL + , FinishTimeStamp DATETIME2(7) NOT NULL + , Duration BIGINT NOT NULL + , TsqlStatement NVARCHAR(MAX) NOT NULL + , ClearCache BIT NOT NULL + , PrintStepInfo BIT NOT NULL + , DurationAccuracy VARCHAR(10) NOT NULL + , OriginalLogin SYSNAME NOT NULL + ); + END + + INSERT INTO master.dbo.BenchmarkTSQL( + TSQLStatementGUID + , StepRowNumber + , StartTimeStamp + , RunTimeStamp + , FinishTimeStamp + , Duration + , TsqlStatement + , ClearCache + , PrintStepInfo + , DurationAccuracy + , OriginalLogin + ) + SELECT TSQLSTATEMENTGUID AS TSQLStatementGUID + , STEPROWNUMBER AS StepRowNumber + , STARTTIMESTAMP AS StartTimeStamp + , RUNTIMESTAMP AS RunTimeStamp + , FINISHTIMESTAMP AS FinishTimeStamp + , DURATION AS Duration + , TSQLSTATEMENT AS TsqlStatement + , CLEARCACHE AS ClearCache + , PRINTSTEPINFO AS PrintStepInfo + , DURATIONACCURACY AS DurationAccuracy + , ORIGINALLOGIN AS OriginalLogin + FROM #timetemp;" + ) + } + + print( + gsub( + "__durationAccuracy__", + durationAccuracy, + paste0( + "Min: ", + min(timetemp$DURATION), + " __durationAccuracy__, average: ", + round(mean(timetemp$DURATION), 7), + " __durationAccuracy__, max: ", + max(timetemp$DURATION), + " __durationAccuracy__", + if (calcMedian) + paste0(", median: ", + round(median(timetemp$DURATION), 7), + ' __durationAccuracy__') + ) + ) + ) + + odbcClose(ch) + + endTime <- Sys.time() + if (datetimeFun == 'SYSUTCDATETIME') + endTime <- as.POSIXlt.POSIXct(Sys.time(), tz='UTC') + + print(paste0( + "Benchmark ended at ", + endTime, + " by ", + original_login$OriginalLogin + )) +} diff --git a/Scripts/Blocked_Session.sql b/Scripts/Blocked_Session.sql new file mode 100644 index 00000000..5da251db --- /dev/null +++ b/Scripts/Blocked_Session.sql @@ -0,0 +1,49 @@ +/* +Author: Kenneth Fisher +Original link: https://sqlstudies.com/2017/01/18/lead-blocker/ +*/ +WITH Blocked_Sessions AS ( + -- Collect lead blockers + -- Pull all blocking IDs & check which ones are not being blocked themselves + SELECT sys.dm_exec_requests.blocking_session_id AS lead_session_id, + sys.dm_exec_requests.blocking_session_id AS blocking_session_id , 0 Cnt + FROM sys.dm_exec_requests + WHERE blocking_session_id <> 0 + AND blocking_session_id NOT IN (SELECT session_id + FROM sys.dm_exec_requests + WHERE sys.dm_exec_requests.blocking_session_id <> 0) + UNION ALL + -- Recurse through list of blocked sessions + SELECT Blocked_Sessions.lead_session_id, sys.dm_exec_requests.session_id, 1 Cnt + FROM sys.dm_exec_requests + JOIN Blocked_Sessions + ON Blocked_Sessions.blocking_session_id = sys.dm_exec_requests.blocking_session_id + ), + Blocked AS ( + -- Add up all sessions blocked for the lead blocker + SELECT lead_session_id, SUM(Cnt) AS sessions_blocked + FROM Blocked_Sessions + GROUP BY lead_session_id) +SELECT Blocked.*, DATEDIFF(s, Sess.last_request_start_time, getdate()) seconds_blocking, + ISNULL(Req.status,'sleeping') [status], SqlText.text [sql_text], + STUFF((SELECT DISTINCT ISNULL(', ' + db.name,'') + FROM sys.databases db + JOIN sys.dm_tran_locks lcks + ON db.database_id = lcks.resource_database_id + WHERE lcks.request_session_id = Sess.session_id + ORDER BY ISNULL(', ' + db.name,'') + FOR XML PATH(''),TYPE).value('.','VARCHAR(MAX)') + ,1,2,'') AS database_list + , Conn.client_net_address, Sess.login_name +FROM sys.dm_exec_connections Conn +LEFT OUTER JOIN sys.dm_exec_sessions Sess + ON Conn.session_id = Sess.session_id +JOIN Blocked + ON Blocked.lead_session_id = Sess.session_id +CROSS APPLY sys.dm_exec_sql_text(Conn.most_recent_sql_handle) SqlText +LEFT JOIN sys.dm_exec_requests Req + ON Req.session_id = Sess.session_id +WHERE Blocked.sessions_blocked >= 1 +-- We only care if the session has been blocked for longer than 30 seconds. +-- This can obviously be modified or commented out. + AND DATEDIFF(s, Sess.last_request_start_time, getdate()) > 30; diff --git a/Scripts/Bufer_Cache_Info.sql b/Scripts/Bufer_Cache_Info.sql new file mode 100644 index 00000000..439c17e5 --- /dev/null +++ b/Scripts/Bufer_Cache_Info.sql @@ -0,0 +1,193 @@ +/* +Source: https://www.sqlshack.com/insight-into-the-sql-server-buffer-cache/ +Author: Ed Pollack +*/ +WITH CTE_BUFFER_CACHE AS ( + SELECT + objects.name AS object_name, + objects.type_desc AS object_type_description, + objects.object_id, + COUNT(*) AS buffer_cache_pages, + COUNT(*) * 8 / 1024 AS buffer_cache_used_MB + FROM sys.dm_os_buffer_descriptors + INNER JOIN sys.allocation_units + ON allocation_units.allocation_unit_id = dm_os_buffer_descriptors.allocation_unit_id + INNER JOIN sys.partitions + ON ((allocation_units.container_id = partitions.hobt_id AND type IN (1,3)) + OR (allocation_units.container_id = partitions.partition_id AND type IN (2))) + INNER JOIN sys.objects + ON partitions.object_id = objects.object_id + WHERE allocation_units.type IN (1,2,3) + AND objects.is_ms_shipped = 0 + AND dm_os_buffer_descriptors.database_id = DB_ID() + GROUP BY objects.name, + objects.type_desc, + objects.object_id) +SELECT + PARTITION_STATS.name, + CTE_BUFFER_CACHE.object_type_description, + CTE_BUFFER_CACHE.buffer_cache_pages, + CTE_BUFFER_CACHE.buffer_cache_used_MB, + PARTITION_STATS.total_number_of_used_pages, + PARTITION_STATS.total_number_of_used_pages * 8 / 1024 AS total_mb_used_by_object, + CAST((CAST(CTE_BUFFER_CACHE.buffer_cache_pages AS DECIMAL) / CAST(PARTITION_STATS.total_number_of_used_pages AS DECIMAL) * 100) AS DECIMAL(5,2)) AS percent_of_pages_in_memory +FROM CTE_BUFFER_CACHE +INNER JOIN ( + SELECT + objects.name, + objects.object_id, + SUM(used_page_count) AS total_number_of_used_pages + FROM sys.dm_db_partition_stats + INNER JOIN sys.objects + ON objects.object_id = dm_db_partition_stats.object_id + WHERE objects.is_ms_shipped = 0 + GROUP BY objects.name, objects.object_id) PARTITION_STATS +ON PARTITION_STATS.object_id = CTE_BUFFER_CACHE.object_id +ORDER BY CAST(CTE_BUFFER_CACHE.buffer_cache_pages AS DECIMAL) / CAST(PARTITION_STATS.total_number_of_used_pages AS DECIMAL) DESC; + +SELECT + indexes.name AS index_name, + objects.name AS object_name, + objects.type_desc AS object_type_description, + COUNT(*) AS buffer_cache_pages, + COUNT(*) * 8 / 1024 AS buffer_cache_used_MB, + SUM(allocation_units.used_pages) AS pages_in_index, + SUM(allocation_units.used_pages) * 8 /1024 AS total_index_size_MB, + CAST((CAST(COUNT(*) AS DECIMAL) / CAST(SUM(allocation_units.used_pages) AS DECIMAL) * 100) AS DECIMAL(5,2)) AS percent_of_pages_in_memory +FROM sys.dm_os_buffer_descriptors +INNER JOIN sys.allocation_units +ON allocation_units.allocation_unit_id = dm_os_buffer_descriptors.allocation_unit_id +INNER JOIN sys.partitions +ON ((allocation_units.container_id = partitions.hobt_id AND type IN (1,3)) +OR (allocation_units.container_id = partitions.partition_id AND type IN (2))) +INNER JOIN sys.objects +ON partitions.object_id = objects.object_id +INNER JOIN sys.indexes +ON objects.object_id = indexes.object_id +AND partitions.index_id = indexes.index_id +WHERE allocation_units.type IN (1,2,3) +AND objects.is_ms_shipped = 0 +AND dm_os_buffer_descriptors.database_id = DB_ID() +GROUP BY indexes.name, + objects.name, + objects.type_desc +ORDER BY CAST((CAST(COUNT(*) AS DECIMAL) / CAST(SUM(allocation_units.used_pages) AS DECIMAL) * 100) AS DECIMAL(5,2)) DESC; + +WITH CTE_BUFFER_CACHE AS +( SELECT + databases.name AS database_name, + COUNT(*) AS total_number_of_used_pages, + CAST(COUNT(*) * 8 AS DECIMAL) / 1024 AS buffer_cache_total_MB, + CAST(CAST(SUM(CAST(dm_os_buffer_descriptors.free_space_in_bytes AS BIGINT)) AS DECIMAL) / (1024 * 1024) AS DECIMAL(20,2)) AS buffer_cache_free_space_in_MB + FROM sys.dm_os_buffer_descriptors + INNER JOIN sys.databases + ON databases.database_id = dm_os_buffer_descriptors.database_id + GROUP BY databases.name) +SELECT + *, + CAST((buffer_cache_free_space_in_MB / NULLIF(buffer_cache_total_MB, 0)) * 100 AS DECIMAL(5,2)) AS buffer_cache_percent_free_space +FROM CTE_BUFFER_CACHE +ORDER BY buffer_cache_free_space_in_MB / NULLIF(buffer_cache_total_MB, 0) DESC; + +SELECT + objects.name AS object_name, + objects.type_desc AS object_type_description, + COUNT(*) AS buffer_cache_pages, + CAST(COUNT(*) * 8 AS DECIMAL) / 1024 AS buffer_cache_total_MB, + CAST(SUM(CAST(dm_os_buffer_descriptors.free_space_in_bytes AS BIGINT)) AS DECIMAL) / 1024 / 1024 AS buffer_cache_free_space_in_MB, + CAST((CAST(SUM(CAST(dm_os_buffer_descriptors.free_space_in_bytes AS BIGINT)) AS DECIMAL) / 1024 / 1024) / (CAST(COUNT(*) * 8 AS DECIMAL) / 1024) * 100 AS DECIMAL(5,2)) AS buffer_cache_percent_free_space +FROM sys.dm_os_buffer_descriptors +INNER JOIN sys.allocation_units +ON allocation_units.allocation_unit_id = dm_os_buffer_descriptors.allocation_unit_id +INNER JOIN sys.partitions +ON ((allocation_units.container_id = partitions.hobt_id AND type IN (1,3)) +OR (allocation_units.container_id = partitions.partition_id AND type IN (2))) +INNER JOIN sys.objects +ON partitions.object_id = objects.object_id +WHERE allocation_units.type IN (1,2,3) +AND objects.is_ms_shipped = 0 +AND dm_os_buffer_descriptors.database_id = DB_ID() +GROUP BY objects.name, + objects.type_desc, + objects.object_id +HAVING COUNT(*) > 0 +ORDER BY COUNT(*) DESC; + +SELECT + databases.name AS database_name, + COUNT(*) AS buffer_cache_total_pages, + SUM(CASE WHEN dm_os_buffer_descriptors.is_modified = 1 + THEN 1 + ELSE 0 + END) AS buffer_cache_dirty_pages, + SUM(CASE WHEN dm_os_buffer_descriptors.is_modified = 1 + THEN 0 + ELSE 1 + END) AS buffer_cache_clean_pages, + SUM(CASE WHEN dm_os_buffer_descriptors.is_modified = 1 + THEN 1 + ELSE 0 + END) * 8 / 1024 AS buffer_cache_dirty_page_MB, + SUM(CASE WHEN dm_os_buffer_descriptors.is_modified = 1 + THEN 0 + ELSE 1 + END) * 8 / 1024 AS buffer_cache_clean_page_MB +FROM sys.dm_os_buffer_descriptors +INNER JOIN sys.databases +ON dm_os_buffer_descriptors.database_id = databases.database_id +GROUP BY databases.name; + + +SELECT + indexes.name AS index_name, + objects.name AS object_name, + objects.type_desc AS object_type_description, + COUNT(*) AS buffer_cache_total_pages, + SUM(CASE WHEN dm_os_buffer_descriptors.is_modified = 1 + THEN 1 + ELSE 0 + END) AS buffer_cache_dirty_pages, + SUM(CASE WHEN dm_os_buffer_descriptors.is_modified = 1 + THEN 0 + ELSE 1 + END) AS buffer_cache_clean_pages, + SUM(CASE WHEN dm_os_buffer_descriptors.is_modified = 1 + THEN 1 + ELSE 0 + END) * 8 / 1024 AS buffer_cache_dirty_page_MB, + SUM(CASE WHEN dm_os_buffer_descriptors.is_modified = 1 + THEN 0 + ELSE 1 + END) * 8 / 1024 AS buffer_cache_clean_page_MB +FROM sys.dm_os_buffer_descriptors +INNER JOIN sys.allocation_units +ON allocation_units.allocation_unit_id = dm_os_buffer_descriptors.allocation_unit_id +INNER JOIN sys.partitions +ON ((allocation_units.container_id = partitions.hobt_id AND type IN (1,3)) +OR (allocation_units.container_id = partitions.partition_id AND type IN (2))) +INNER JOIN sys.objects +ON partitions.object_id = objects.object_id +INNER JOIN sys.indexes +ON objects.object_id = indexes.object_id +AND partitions.index_id = indexes.index_id +WHERE allocation_units.type IN (1,2,3) +AND objects.is_ms_shipped = 0 +AND dm_os_buffer_descriptors.database_id = DB_ID() +GROUP BY indexes.name, + objects.name, + objects.type_desc +ORDER BY COUNT(*) DESC; + + +-- Page Life Expectancy +SELECT * +FROM sys.dm_os_performance_counters +WHERE dm_os_performance_counters.object_name LIKE '%Buffer Manager%' +AND dm_os_performance_counters.counter_name = 'Page life expectancy'; + + +-- If your server has a NUMA (non-uniform memory access) architecture +SELECT * +FROM sys.dm_os_performance_counters +WHERE dm_os_performance_counters.object_name LIKE '%Buffer Node%' +AND dm_os_performance_counters.counter_name = 'Page life expectancy'; diff --git a/Scripts/BufferPoolExtension.sql b/Scripts/BufferPoolExtension.sql new file mode 100644 index 00000000..0c3912ee --- /dev/null +++ b/Scripts/BufferPoolExtension.sql @@ -0,0 +1,61 @@ +/* +Author:Ryan Adams +Original link: http://www.ryanjadams.com/2017/05/implementing-buffer-pool-extension +*/ + +--Review current BPE configuration +SELECT [path], state_description, current_size_in_kb, +CAST(current_size_in_kb/1048576.0 AS DECIMAL(10,2)) AS [Size (GB)] +FROM sys.dm_os_buffer_pool_extension_configuration; + +--Reduce SQL Server Max memory to restrict the BP and force the use of BPE +EXEC sys.sp_configure 'show advanced options', '1' RECONFIGURE WITH OVERRIDE; +GO +EXEC sys.sp_configure 'max server memory (MB)', '2000'; +GO +RECONFIGURE WITH OVERRIDE; +GO +EXEC sys.sp_configure 'show advanced options', '0' RECONFIGURE WITH OVERRIDE; +GO +/*********** WE HAVE TO RESTART SQL SERVER FOR BPE TO SEE THE RAM CHANGE ***************/ + +--Enable BPE +--Go look at the file size on disk right after you run this +ALTER SERVER CONFIGURATION +SET BUFFER POOL EXTENSION ON (FILENAME = 'C:\Temp\BP_Extension.BPE', SIZE = 2 GB); + +--Now that it is enabled we'll inspect the configuration again +SELECT [path], state_description, current_size_in_kb, +CAST(current_size_in_kb/1048576.0 AS DECIMAL(10,2)) AS [Size (GB)] +FROM sys.dm_os_buffer_pool_extension_configuration; + +--Try to read enough data to fill BP and start using BPE +USE AdventureworksDW2016CTP3; +GO +SELECT * FROM dbo.FactResellerSalesXL_PageCompressed; +--If the above didn't do the trick then query this table as well +--SELECT * FROM dbo.FactResellerSalesXL_CCI; + +--Let's see what went to BPE. If there are no results then go query more data. +SELECT DB_NAME(database_id) AS [Database Name], COUNT(page_id) AS [Page Count], +CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], +AVG(read_microsec) AS [Avg Read Time (microseconds)] +FROM sys.dm_os_buffer_descriptors +WHERE database_id <> 32767 +AND is_in_bpool_extension = 1 +GROUP BY DB_NAME(database_id) +ORDER BY [Buffer size(MB)] DESC; + +--Turn BPE off. Go look in c:\temp to see what happens to the physical data file +ALTER SERVER CONFIGURATION +SET BUFFER POOL EXTENSION OFF; + +--Put Max Server Memory back where it was +EXEC sys.sp_configure 'show advanced options', '1' RECONFIGURE WITH OVERRIDE; +GO +EXEC sys.sp_configure 'max server memory (MB)', '3500'; +GO +RECONFIGURE WITH OVERRIDE; +GO +EXEC sys.sp_configure 'show advanced options', '0' RECONFIGURE WITH OVERRIDE; +GO \ No newline at end of file diff --git a/Scripts/CPU_Utilization.sql b/Scripts/CPU_Utilization.sql index 5dcf0753..092f6a56 100644 --- a/Scripts/CPU_Utilization.sql +++ b/Scripts/CPU_Utilization.sql @@ -1,27 +1,27 @@ -/* -Author: Benjamin Nevarez -Original link: http://sqlblog.com/blogs/ben_nevarez/archive/2009/07/26/getting-cpu-utilization-data-from-sql-server.aspx -*/ - - -DECLARE @ts_now BIGINT; - -SELECT @ts_now = cpu_ticks / CONVERT(FLOAT, cpu_ticks) -FROM sys.dm_os_sys_info; - -SELECT record_id - , Dateadd(ms, -1 * ( @ts_now - [timestamp]) - , Getdate()) AS EventTime - , sqlprocessutilization - , systemidle - , 100 - systemidle - sqlprocessutilization AS OtherProcessUtilization -FROM (SELECT record.value('(./Record/@id)[1]', 'int') AS record_id - , record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') AS SystemIdle - , record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', 'int') AS SQLProcessUtilization - , timestamp - FROM (SELECT timestamp - , CONVERT(XML, record) AS record - FROM sys.dm_os_ring_buffers - WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' - AND record LIKE '%%') AS x) AS y -ORDER BY record_id DESC; +/* +Author: Benjamin Nevarez +Original link: http://sqlblog.com/blogs/ben_nevarez/archive/2009/07/26/getting-cpu-utilization-data-from-sql-server.aspx +*/ + + +DECLARE @ts_now BIGINT; + +SELECT @ts_now = cpu_ticks / CONVERT(FLOAT, cpu_ticks) +FROM sys.dm_os_sys_info; + +SELECT record_id + , Dateadd(ms, -1 * ( @ts_now - [timestamp]) + , Getdate()) AS EventTime + , sqlprocessutilization + , systemidle + , 100 - systemidle - sqlprocessutilization AS OtherProcessUtilization +FROM (SELECT record.value('(./Record/@id)[1]', 'int') AS record_id + , record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') AS SystemIdle + , record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', 'int') AS SQLProcessUtilization + , timestamp + FROM (SELECT timestamp + , CONVERT(XML, record) AS record + FROM sys.dm_os_ring_buffers + WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' + AND record LIKE '%%') AS x) AS y +ORDER BY record_id DESC; diff --git a/Scripts/CPU_Utilization_Graphical_form.sql b/Scripts/CPU_Utilization_Graphical_form.sql index 7b40a183..d4e2bb5e 100644 --- a/Scripts/CPU_Utilization_Graphical_form.sql +++ b/Scripts/CPU_Utilization_Graphical_form.sql @@ -1,29 +1,29 @@ -/* -Author: Slava Murygin -Original link: http://slavasql.blogspot.ru/2016/03/sql-server-cpu-utilization-in-graphical.html -*/ - -DECLARE @gc VARCHAR(MAX), @gi VARCHAR(MAX); -WITH BR_Data as ( - SELECT timestamp, CONVERT(XML, record) as record - FROM sys.dm_os_ring_buffers - WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' and record like '%%' -), Extracted_XML as ( - SELECT timestamp, record.value('(./Record/@id)[1]', 'int') as record_id, - record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'bigint') as SystemIdle, - record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', 'bigint') as SQLCPU - FROM BR_Data -), CPU_Data as ( - SELECT record_id, ROW_NUMBER() OVER(ORDER BY record_id) as rn, - dateadd(ms, -1 * ((SELECT ms_ticks FROM sys.dm_os_sys_info) - [timestamp]), GETDATE()) as EventTime, - SQLCPU, SystemIdle, 100 - SystemIdle - SQLCPU as OtherCPU - FROM Extracted_XML ) -SELECT @gc = CAST((SELECT CAST(d1.rn as VARCHAR) + ' ' + CAST(d1.SQLCPU as VARCHAR) + ',' FROM CPU_Data as d1 ORDER BY d1.rn FOR XML PATH('')) as VARCHAR(MAX)), -@gi = CAST((SELECT CAST(d1.rn as VARCHAR) + ' ' + CAST(d1.OtherCPU as VARCHAR) + ',' FROM CPU_Data as d1 ORDER BY d1.rn FOR XML PATH('')) as VARCHAR(MAX)) -OPTION (RECOMPILE); - -SELECT CAST('LINESTRING(' + LEFT(@gc,LEN(@gc)-1) + ')' as GEOMETRY), 'SQL CPU %' as Measure -UNION ALL -SELECT CAST('LINESTRING(1 100,2 100)' as GEOMETRY), '' -UNION ALL -SELECT CAST('LINESTRING(' + LEFT(@gi,LEN(@gi)-1) + ')' as GEOMETRY), 'Other CPU %'; +/* +Author: Slava Murygin +Original link: http://slavasql.blogspot.ru/2016/03/sql-server-cpu-utilization-in-graphical.html +*/ + +DECLARE @gc VARCHAR(MAX), @gi VARCHAR(MAX); +WITH BR_Data as ( + SELECT timestamp, CONVERT(XML, record) as record + FROM sys.dm_os_ring_buffers + WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' and record like '%%' +), Extracted_XML as ( + SELECT timestamp, record.value('(./Record/@id)[1]', 'int') as record_id, + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'bigint') as SystemIdle, + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', 'bigint') as SQLCPU + FROM BR_Data +), CPU_Data as ( + SELECT record_id, ROW_NUMBER() OVER(ORDER BY record_id) as rn, + dateadd(ms, -1 * ((SELECT ms_ticks FROM sys.dm_os_sys_info) - [timestamp]), GETDATE()) as EventTime, + SQLCPU, SystemIdle, 100 - SystemIdle - SQLCPU as OtherCPU + FROM Extracted_XML ) +SELECT @gc = CAST((SELECT CAST(d1.rn as VARCHAR) + ' ' + CAST(d1.SQLCPU as VARCHAR) + ',' FROM CPU_Data as d1 ORDER BY d1.rn FOR XML PATH('')) as VARCHAR(MAX)), +@gi = CAST((SELECT CAST(d1.rn as VARCHAR) + ' ' + CAST(d1.OtherCPU as VARCHAR) + ',' FROM CPU_Data as d1 ORDER BY d1.rn FOR XML PATH('')) as VARCHAR(MAX)) +OPTION (RECOMPILE); + +SELECT CAST('LINESTRING(' + LEFT(@gc,LEN(@gc)-1) + ')' as GEOMETRY), 'SQL CPU %' as Measure +UNION ALL +SELECT CAST('LINESTRING(1 100,2 100)' as GEOMETRY), '' +UNION ALL +SELECT CAST('LINESTRING(' + LEFT(@gi,LEN(@gi)-1) + ')' as GEOMETRY), 'Other CPU %'; diff --git a/Scripts/Change_NonDefault_Collation_for_all_tables.sql b/Scripts/Change_NonDefault_Collation_for_all_tables.sql new file mode 100644 index 00000000..b957e74e --- /dev/null +++ b/Scripts/Change_NonDefault_Collation_for_all_tables.sql @@ -0,0 +1,718 @@ +-- SSMS results to text - max length 8192 (change from default!!!) + +/******************************************************************************* +* +* Created 2017-06-16 By Philip C +* +* This script will check individual columns collations and check it against the +* database default collation, where they are different it will create the scripts +* required to drop all the objects dependant on the column, change the collation +* to the database default and then recreate the dependant objects. +* Some of the code has been reused from stuff found online the majority from +* Jayakumaur R who created scripts to drop and recreate constraints +* +* +* Modified 2019-01-11 by Hugo Kornelis +* https://sqlserverfast.com/blog/hugo/2019/01/collation-change-script/ +* +* Removed double checking of recreated constraints +* Modified the order of the output to minimize number of index rebuilds (assuming primary key is most often clsutered index) +* Fixed a bug caused by unique constraints overlapping the primary key constraint +* Fixed a bug in detection of foreign key constraints to drop and recreate +* Fixed bugs with recreating multi-column UNIQUE constraints +* +*********************************************************************************/ + +SET NOCOUNT ON; +SET ANSI_WARNINGS OFF; +GO + +-- Declare variables +DECLARE @SchemaName sysname, + @TableName sysname, + @IndexName sysname, + @ColumnName sysname, + @index_id int, + @is_unique nvarchar(100), + @IndexTypeDesc nvarchar(100), + @FileGroupName sysname, + @is_disabled nvarchar(100), + @IndexOptions nvarchar(MAX), + @IndexColumnId int, + @IsDescendingKey int, + @IsIncludedColumn int, + @TSQLScripCreationIndex nvarchar(MAX), + @TSQLScripDisableIndex nvarchar(MAX), + @object_id int, + @has_key_constraint int, + @has_index int, + @has_foreign_key int, + @has_stats int, + @stats_id int, + @FK_objectid int, + @FK_name sysname, + @UQ_objectid int, + @UQ_name sysname, + @UQ_index_id int, + @has_unique_constraint int, + @DatabaseCollation sysname, + @IndexColumns nvarchar(MAX), + @IncludedColumns nvarchar(MAX); + +-- Temporary table for generated script +CREATE TABLE #tempscriptstore + (ScriptType varchar(20), + script nvarchar(MAX)); + +-- Get dataabse default collation +SELECT @DatabaseCollation = collation_name +FROM sys.databases +WHERE database_id = DB_ID(); + +/************************************************************************************************************************************ +* Iterate over all the tables that have at least one colmun where collation doesn't match the database default. * +* Also checks for PRIMARY KEY, UNIQUE, and (referencing) FOREIGN KEY constraints, indexes, and manually created statistics. * +* (Note that the counts are not accurate counts due to duplication, these should only be tested for zero or non-zero) * +************************************************************************************************************************************/ +DECLARE collationfix CURSOR LOCAL FORWARD_ONLY READ_ONLY STATIC FOR +SELECT t.object_id, + OBJECT_SCHEMA_NAME(t.object_id) AS schemaname, + OBJECT_NAME(t.object_id) AS tablename, + COUNT(kc.object_id) AS has_key_constraint, + COUNT(ic.index_id) AS has_index, + COUNT(fk.constraint_object_id) AS has_foreign_key, + COUNT(st.stats_id) AS has_stats, + COUNT(uq.object_id) AS has_unique_constraint +FROM sys.tables AS t +INNER JOIN sys.columns AS c + ON c.object_id = t.object_id + AND c.collation_name <> @DatabaseCollation -- Table needs to have columns with "wrong" collation +INNER JOIN sys.types AS ty + ON ty.system_type_id = c.system_type_id + AND ty.name <> N'sysname' -- Exclusion retained from Philip C's original script +LEFT JOIN sys.index_columns AS ic -- Find indexes on any of the affected columns + ON ic.object_id = c.object_id + AND ic.column_id = c.column_id +LEFT JOIN sys.key_constraints AS kc -- Find primary key constraints related to an affected index + ON kc.parent_object_id = c.object_id + AND kc.unique_index_id = ic.index_id + AND kc.type = 'PK' +LEFT JOIN sys.key_constraints AS uq -- Find unique constraints related to an affected index + ON uq.parent_object_id = c.object_id + AND uq.unique_index_id = ic.index_id + AND uq.type = 'UQ' +LEFT JOIN sys.foreign_key_columns AS fk -- Find foreign key constraints on any of the affected columns + ON fk.parent_object_id = c.object_id + AND fk.parent_column_id = c.column_id +LEFT JOIN sys.stats_columns AS st -- Find statistics on any of the affected columns + ON st.object_id = c.object_id + AND st.column_id = c.column_id + AND st.stats_column_id <> 1 -- Retained from Philip C's original script, no idea why this is in the query +WHERE t.is_ms_shipped = 0 -- Exclude Microsoft-shipped tables +GROUP BY t.object_id; + +OPEN collationfix; +FETCH NEXT FROM collationfix +INTO @object_id, + @SchemaName, + @TableName, + @has_key_constraint, + @has_index, + @has_foreign_key, + @has_stats, + @has_unique_constraint; + +WHILE (@@FETCH_STATUS = 0) +BEGIN; + + /************************************************************************************************************************************ + * Generates the code to update the colation for all affected columns in the table * + ************************************************************************************************************************************/ + INSERT INTO #tempscriptstore (ScriptType, + script) + SELECT 'AlterCollation', + N'ALTER TABLE ' + QUOTENAME(@SchemaName) + N'.' + QUOTENAME(@TableName) + N' ALTER COLUMN ' + + QUOTENAME(c.name) + ' ' + + CASE WHEN ty.name = N'ntext' + THEN ty.name + N' COLLATE ' + @DatabaseCollation + ' ' + ELSE ty.name + N'(' + CASE WHEN c.max_length = -1 + THEN N'MAX' + ELSE CASE WHEN ty.name = N'nvarchar' + THEN CAST(c.max_length / 2 AS nvarchar(20)) + ELSE CAST(c.max_length AS nvarchar(20)) + END + END + N') COLLATE ' + @DatabaseCollation + END + CASE WHEN c.is_nullable = 1 THEN N' NULL;' ELSE N' NOT NULL;' END + FROM sys.columns AS c + INNER JOIN sys.types AS ty + ON ty.system_type_id = c.system_type_id + AND ty.name <> N'sysname' + WHERE c.object_id = @object_id + AND c.collation_name <> @DatabaseCollation; + + /************************************************************************************************************************************ + * If the table has affected indexes, this creates the drop and recreate index scripts * + ************************************************************************************************************************************/ + IF @has_index > 0 + BEGIN; + -- Process indexes on affected columns, one by one + DECLARE CursorIndex CURSOR LOCAL FORWARD_ONLY READ_ONLY STATIC FOR + SELECT ix.index_id, + ix.name, + CASE WHEN ix.is_unique = 1 THEN N'UNIQUE ' ELSE N'' END, + ix.type_desc, + CASE WHEN ix.is_padded = 1 + THEN N'PAD_INDEX = ON, ' + ELSE N'PAD_INDEX = OFF, ' + END + CASE WHEN ix.allow_page_locks = 1 + THEN N'ALLOW_PAGE_LOCKS = ON, ' + ELSE N'ALLOW_PAGE_LOCKS = OFF, ' + END + CASE WHEN ix.allow_row_locks = 1 + THEN N'ALLOW_ROW_LOCKS = ON, ' + ELSE N'ALLOW_ROW_LOCKS = OFF, ' + END + CASE WHEN INDEXPROPERTY(ix.object_id, ix.name, 'IsStatistics') = 1 + THEN N'STATISTICS_NORECOMPUTE = ON, ' + ELSE N'STATISTICS_NORECOMPUTE = OFF, ' + END + CASE WHEN ix.ignore_dup_key = 1 + THEN N'IGNORE_DUP_KEY = ON, ' + ELSE N'IGNORE_DUP_KEY = OFF, ' + END + N'SORT_IN_TEMPDB = OFF, FILLFACTOR =' + + CASE WHEN ix.fill_factor = 0 + THEN CAST(100 AS nvarchar(3)) + ELSE CAST(ix.fill_factor AS nvarchar(3)) + END AS IndexOptions, + ix.is_disabled, + FILEGROUP_NAME(ix.data_space_id) AS FileGroupName + FROM sys.indexes AS ix + WHERE ix.object_id = @object_id + AND ix.type <> 0 -- Exclude heaps + AND ix.is_primary_key = 0 -- Exclude primary key constraints (handled separately) + AND ix.is_unique_constraint = 0 -- Exclude unique constraints (handled separately) + AND EXISTS (SELECT * -- Has to constrain at least one column with wrong collation + FROM sys.index_columns AS ic + INNER JOIN sys.columns AS c + ON c.object_id = ic.object_id + AND c.column_id = ic.column_id + AND c.collation_name <> @DatabaseCollation + INNER JOIN sys.types AS ty + ON ty.system_type_id = c.system_type_id + AND ty.name <> N'sysname' + WHERE ic.index_id = ix.index_id + AND ic.object_id = ix.object_id); + + OPEN CursorIndex; + FETCH NEXT FROM CursorIndex + INTO @index_id, + @IndexName, + @is_unique, + @IndexTypeDesc, + @IndexOptions, + @is_disabled, + @FileGroupName; + + WHILE (@@FETCH_STATUS = 0) + BEGIN; + -- For each index, use a nested cursor to build lists of indexed and inclued columns + SET @IndexColumns = N''; + SET @IncludedColumns = N''; + + DECLARE CursorIndexColumn CURSOR FOR + SELECT c.name, + ic.is_descending_key, + ic.is_included_column + FROM sys.index_columns AS ic + INNER JOIN sys.columns AS c + ON c.object_id = ic.object_id + AND c.column_id = ic.column_id + WHERE ic.object_id = @object_id + AND ic.index_id = @index_id + ORDER BY ic.index_column_id; + + OPEN CursorIndexColumn; + FETCH NEXT FROM CursorIndexColumn + INTO @ColumnName, + @IsDescendingKey, + @IsIncludedColumn; + + WHILE (@@FETCH_STATUS = 0) + BEGIN; + IF @IsIncludedColumn = 0 + SET @IndexColumns += @ColumnName + + CASE WHEN @IsDescendingKey = 1 THEN N' DESC, ' ELSE N' ASC, ' END; + ELSE + SET @IncludedColumns += @ColumnName + N', '; + + FETCH NEXT FROM CursorIndexColumn + INTO @ColumnName, + @IsDescendingKey, + @IsIncludedColumn; + END; + + CLOSE CursorIndexColumn; + DEALLOCATE CursorIndexColumn; + + -- Remove trailing comma + SET @IndexColumns = SUBSTRING(@IndexColumns, 1, LEN(@IndexColumns) - 1); + IF @IncludedColumns <> N'' + SET @IncludedColumns = SUBSTRING(@IncludedColumns, 1, LEN(@IncludedColumns) - 1); + + -- Generate DROP INDEX statement + INSERT INTO #tempscriptstore (ScriptType, + script) + SELECT 'DropIndex', + N'DROP INDEX ' + QUOTENAME(@SchemaName) + '.' + QUOTENAME(@TableName) + '.' + QUOTENAME(@IndexName) + + N';'; + + -- Generate CREATE INDEX statement + INSERT INTO #tempscriptstore (ScriptType, + script) + SELECT 'CreateIndex', + N'CREATE ' + @is_unique + @IndexTypeDesc + N' INDEX ' + QUOTENAME(@IndexName) + N' ON ' + + QUOTENAME(@SchemaName) + N'.' + QUOTENAME(@TableName) + N'(' + @IndexColumns + N') ' + + CASE WHEN @IncludedColumns <> N'' + THEN N'INCLUDE (' + @IncludedColumns + N')' + ELSE N'' + END + N' WITH (' + @IndexOptions + N') ON ' + QUOTENAME(@FileGroupName) + N';'; + + -- Generate script to (re)disable disabled index after creating it + IF @is_disabled = 1 + INSERT INTO #tempscriptstore (ScriptType, + script) + SELECT 'DisableIndex', + N'ALTER INDEX ' + QUOTENAME(@IndexName) + N' ON ' + QUOTENAME(@SchemaName) + N'.' + + QUOTENAME(@TableName) + N' DISABLE;'; + + FETCH NEXT FROM CursorIndex + INTO @index_id, + @IndexName, + @is_unique, + @IndexTypeDesc, + @IndexOptions, + @is_disabled, + @FileGroupName; + END; + + CLOSE CursorIndex; + DEALLOCATE CursorIndex; + END; + + /************************************************************************************************************************************ + * If the table has an affected primary key constraint, this creates the drop and recreate constraint script * + * this has been taken and adapted from a script found online created by Jayakumaur R * + ************************************************************************************************************************************/ + IF @has_key_constraint > 0 + BEGIN; + -- Find columns and other metadata for primary key + SELECT kc.object_id AS constid, + kc.name AS constraint_name, -- PK name + QUOTENAME(c.name) + CASE WHEN ic.is_descending_key = 1 THEN N' DESC' ELSE N' ASC' END AS pk_col, + ic.key_ordinal, + i.name AS index_name, + i.type_desc AS index_type, + QUOTENAME(fg.name) AS filegroup_name, + N' WITH (PAD_INDEX = ' + CASE WHEN i.is_padded = 0 THEN N'OFF' ELSE N'ON' END + N', IGNORE_DUP_KEY = ' + + CASE WHEN i.ignore_dup_key = 0 THEN N'OFF' ELSE N'ON' END + N', ALLOW_ROW_LOCKS = ' + + CASE WHEN i.allow_row_locks = 0 THEN N'OFF' ELSE N'ON' END + ', ALLOW_PAGE_LOCKS = ' + + CASE WHEN i.allow_page_locks = 0 THEN N'OFF)' ELSE N'ON)' END AS index_property + INTO #temp_pk + FROM sys.key_constraints AS kc + INNER JOIN sys.indexes AS i + ON i.object_id = kc.parent_object_id + AND i.is_primary_key = 1 + INNER JOIN sys.index_columns AS ic + ON ic.object_id = i.object_id + AND ic.index_id = i.index_id + INNER JOIN sys.columns AS c + ON c.object_id = ic.object_id + AND c.column_id = ic.column_id + INNER JOIN sys.filegroups AS fg + ON fg.data_space_id = i.data_space_id + WHERE kc.type = 'PK' + AND kc.parent_object_id = @object_id; + + -- Generate DROP CONSTRAINT statement + INSERT INTO #tempscriptstore (ScriptType, + script) + SELECT TOP (1) -- One DROP statement, even if there are multiple columns + 'DropPrimaryKey', + N'ALTER TABLE ' + QUOTENAME(@SchemaName) + N'.' + QUOTENAME(@TableName) + N' DROP CONSTRAINT ' + + QUOTENAME(constraint_name) + N';' + FROM #temp_pk; + + -- Generate CREATE CONSTRAINT statement + INSERT INTO #tempscriptstore (ScriptType, + script) + SELECT TOP (1) -- One CREATE statement, even if there are multiple columns + 'AddPrimaryKey', + N'ALTER TABLE ' + QUOTENAME(@SchemaName) + N'.' + QUOTENAME(@TableName) + N' ADD CONSTRAINT ' + + QUOTENAME(p.constraint_name) + N' PRIMARY KEY ' + CAST(p.index_type AS nvarchar(100)) + N' (' + + STUFF((SELECT N', ' + pk_col -- This generates a comma-separated list of the columns, in order + FROM #temp_pk + ORDER BY key_ordinal + FOR XML PATH('')), + 1, + 2, + N'') + N')' + p.index_property + N' ON ' + p.filegroup_name + N';' + FROM #temp_pk AS p; + + DROP TABLE #temp_pk; + END; + + /************************************************************************************************************************************ + * If the table has a foreign key constraint on an affected column, this creates the drop and recreate constraint script * + * this has been taken and adapted from a script found online cretaed by Jayakumaur R * + ************************************************************************************************************************************/ + IF @has_foreign_key > 0 + BEGIN; + -- Process foreign key constraints on affected columns, one by one + DECLARE foreignkeycursor CURSOR FOR + SELECT fk.object_id, + fk.name + FROM sys.foreign_keys AS fk + WHERE fk.parent_object_id = @object_id + AND EXISTS (SELECT * -- Has to constrain at least one column with wrong collation + FROM sys.foreign_key_columns AS fkc + INNER JOIN sys.columns AS c + ON c.object_id = fkc.parent_object_id + AND c.column_id = fkc.parent_column_id + AND c.collation_name <> @DatabaseCollation + INNER JOIN sys.types AS ty + ON ty.system_type_id = c.system_type_id + AND ty.name <> N'sysname' + WHERE fkc.parent_object_id = fk.parent_object_id + AND fkc.constraint_object_id = fk.object_id); + + OPEN foreignkeycursor; + FETCH NEXT FROM foreignkeycursor + INTO @FK_objectid, + @FK_name; + + WHILE (@@FETCH_STATUS = 0) + BEGIN; + -- Find columns and other metadata for foreign key + SELECT fk.object_id AS constid, + fk.name AS constraint_name, -- FK name + fkc.constraint_column_id AS column_ordinal, + QUOTENAME(c1.name) AS key_col, + QUOTENAME(OBJECT_SCHEMA_NAME(fk.referenced_object_id)) + N'.' + + QUOTENAME(OBJECT_NAME(fk.referenced_object_id)) AS ref_table, + QUOTENAME(c2.name) AS ref_col, + CASE WHEN fk.delete_referential_action <> 0 -- No action + THEN N' ON DELETE ' + fk.delete_referential_action_desc + ELSE N'' + END AS delete_cascade, + CASE WHEN fk.update_referential_action <> 0 -- No action + THEN N' ON UPDATE ' + fk.update_referential_action_desc + ELSE N'' + END AS update_cascade, + fk.is_not_trusted, + fk.is_disabled + INTO #temp_fk + FROM sys.foreign_keys AS fk + INNER JOIN sys.foreign_key_columns AS fkc + ON fkc.parent_object_id = fk.parent_object_id + AND fkc.constraint_object_id = fk.object_id + INNER JOIN sys.columns AS c1 + ON c1.object_id = fkc.parent_object_id + AND c1.column_id = fkc.parent_column_id + INNER JOIN sys.columns AS c2 + ON c2.object_id = fkc.referenced_object_id + AND c2.column_id = fkc.referenced_column_id + WHERE fk.object_id = @FK_objectid; + + -- Generate DROP CONSTRAINT statement + INSERT INTO #tempscriptstore (ScriptType, + script) + SELECT 'DropForeignKey', + N'ALTER TABLE ' + QUOTENAME(@SchemaName) + N'.' + QUOTENAME(@TableName) + N' DROP CONSTRAINT ' + + QUOTENAME(@FK_name) + N';'; + + -- Generate CREATE CONSTRAINT statement (always as ënabled, "not trusted"; status is changed later in script) + INSERT INTO #tempscriptstore (ScriptType, + script) + SELECT TOP (1) -- One CREATE statement, even if there are multiple columns + 'AddForeignKey', + N'ALTER TABLE ' + QUOTENAME(@SchemaName) + N'.' + QUOTENAME(@TableName) + + N' WITH NOCHECK ADD CONSTRAINT ' + QUOTENAME(constraint_name) + N' FOREIGN KEY (' + + STUFF( + (SELECT N', ' + key_col -- This generates a comma-separated list of the constrained columns, in order + FROM #temp_fk + ORDER BY column_ordinal + FOR XML PATH('')), + 1, + 2, + N'') + N') REFERENCES ' + ref_table + N'(' + + STUFF( + (SELECT N', ' + ref_col -- This generates a comma-separated list of the referencedcolumns, in order + FROM #temp_fk + ORDER BY column_ordinal + FOR XML PATH('')), + 1, + 2, + N'') + N')' + delete_cascade + update_cascade + ';' + FROM #temp_fk; + + -- If constraint was disabled, add code to disable it again + INSERT INTO #tempscriptstore (ScriptType, + script) + SELECT TOP (1) -- One CREATE statement, even if there are multiple columns + 'DisableForeignKey', + N'ALTER TABLE ' + QUOTENAME(@SchemaName) + N'.' + QUOTENAME(@TableName) + N' NOCHECK CONSTRAINT ' + + QUOTENAME(constraint_name) + N';' + FROM #temp_fk + WHERE is_disabled = 1; + + -- If constraint was trusted, add code to force re-check so it's trudsted again + INSERT INTO #tempscriptstore (ScriptType, + script) + SELECT TOP (1) -- One CREATE statement, even if there are multiple columns + 'CheckForeignKey', + N'ALTER TABLE ' + QUOTENAME(@SchemaName) + N'.' + QUOTENAME(@TableName) + + N' WITH CHECK CHECK CONSTRAINT ' + QUOTENAME(constraint_name) + N';' + FROM #temp_fk + WHERE is_not_trusted = 0; + + DROP TABLE #temp_fk; + + FETCH NEXT FROM foreignkeycursor + INTO @FK_objectid, + @FK_name; + END; + CLOSE foreignkeycursor; + DEALLOCATE foreignkeycursor; + END; + + /* +-- DROP and CREATE statistics for manual statistics has been disabled for now + /************************************************************************************************************************************ + * If the column has statistics that aren't part of an index this creates the drop and recreate scripts * + ************************************************************************************************************************************/ + IF @has_stats > 0 + AND @has_index = 0 + BEGIN + DECLARE stats_cursor CURSOR FOR + SELECT sc.stats_id + FROM sys.stats_columns AS sc + JOIN sys.stats AS s + ON s.object_id = sc.object_id + AND s.stats_id = sc.stats_id + AND s.user_created = 1 + WHERE sc.object_id = @object_id + AND sc.column_id = @Collation_columnid; + OPEN stats_cursor; + FETCH NEXT FROM stats_cursor + INTO @stats_id; + WHILE (@@FETCH_STATUS = 0) + BEGIN + --Create DROP Statistics Statement + INSERT INTO #tempscriptstore + (ScriptType, + script) + SELECT 'DropStatistics', + 'DROP STATISTICS ' + QUOTENAME(OBJECT_SCHEMA_NAME(s.object_id)) + '.' + + QUOTENAME(OBJECT_NAME(s.object_id)) + '.' + QUOTENAME(s.name) + FROM sys.stats AS s + WHERE s.object_id = @object_id + AND s.stats_id = @stats_id; + + --Building the CREATE statistics statement + + --Obtaining all the information + SELECT QUOTENAME(OBJECT_SCHEMA_NAME(sc.object_id)) + '.' + QUOTENAME(OBJECT_NAME(sc.object_id)) AS st_table, + QUOTENAME(s.name) AS st_name, + QUOTENAME(c.name) AS st_column, + sc.object_id, + sc.stats_id, + sc.stats_column_id + INTO #temp_stats + FROM sys.stats_columns AS sc + JOIN sys.stats AS s + ON s.stats_id = sc.stats_id + AND s.object_id = sc.object_id + JOIN sys.columns AS c + ON c.object_id = sc.object_id + AND c.column_id = sc.column_id + WHERE sc.object_id = @object_id + AND sc.stats_id = @stats_id; + WITH + cte AS + (SELECT DISTINCT ts.st_table, + ts.st_name, + SUBSTRING((SELECT ',' + st_column + FROM #temp_stats + WHERE stats_id = ts.stats_id + ORDER BY stats_column_id ASC + FOR XML PATH('')), + 2, + 99999) AS st_col_list + FROM #temp_stats AS ts) + --Constructing the statement + INSERT INTO #tempscriptstore + (ScriptType, + script) + SELECT 'AddStatistics', + 'CREATE STATISTICS ' + cte.st_name + ' ON ' + cte.st_table + '(' + cte.st_col_list + ')' + FROM cte; + DROP TABLE #temp_stats; + FETCH NEXT FROM stats_cursor + INTO @stats_id; + END; + CLOSE stats_cursor; + DEALLOCATE stats_cursor; + END; +*/ + + /************************************************************************************************************************************ + * If the table has unique constraints on affected columns, this creates the drop and recreate scripts * + ************************************************************************************************************************************/ + IF @has_unique_constraint > 0 + BEGIN; + -- Process unique constraints on affected columns, one by one + DECLARE uniquecursor CURSOR FOR + SELECT kc.object_id, + kc.name, + kc.unique_index_id + FROM sys.key_constraints AS kc + WHERE kc.parent_object_id = @object_id + AND kc.type = 'UQ' + AND EXISTS (SELECT * -- Has to constrain at least one column with wrong collation + FROM sys.index_columns AS ic + INNER JOIN sys.columns AS c + ON c.object_id = ic.object_id + AND c.column_id = ic.column_id + AND c.collation_name <> @DatabaseCollation + INNER JOIN sys.types AS ty + ON ty.system_type_id = c.system_type_id + AND ty.name <> N'sysname' + WHERE ic.object_id = kc.parent_object_id + AND ic.index_id = kc.unique_index_id); + + OPEN uniquecursor; + FETCH NEXT FROM uniquecursor + INTO @UQ_objectid, + @UQ_name, + @UQ_index_id; + + WHILE (@@FETCH_STATUS = 0) + BEGIN; + -- Find columns and other metadata for unique constraint + SELECT QUOTENAME(c.name) + CASE WHEN ic.is_descending_key = 1 THEN N' DESC' ELSE N' ASC' END AS uq_col, + ic.key_ordinal, + i.name AS index_name, + i.type_desc AS index_type, + QUOTENAME(fg.name) AS filegroup_name, + N' WITH (PAD_INDEX = ' + CASE WHEN i.is_padded = 0 THEN N'OFF' ELSE N'ON' END + + N', IGNORE_DUP_KEY = ' + CASE WHEN i.ignore_dup_key = 0 THEN N'OFF' ELSE N'ON' END + + N', ALLOW_ROW_LOCKS = ' + CASE WHEN i.allow_row_locks = 0 THEN N'OFF' ELSE N'ON' END + + ', ALLOW_PAGE_LOCKS = ' + CASE WHEN i.allow_page_locks = 0 THEN N'OFF)' ELSE N'ON)' END AS index_property + INTO #temp_uq + FROM sys.indexes AS i + INNER JOIN sys.index_columns AS ic + ON ic.object_id = i.object_id + AND ic.index_id = i.index_id + INNER JOIN sys.columns AS c + ON c.object_id = ic.object_id + AND c.column_id = ic.column_id + INNER JOIN sys.filegroups AS fg + ON fg.data_space_id = i.data_space_id + WHERE i.object_id = @object_id + AND i.index_id = @UQ_index_id + AND i.is_unique_constraint = 1; + + -- Generate DROP CONSTRAINT statement + INSERT INTO #tempscriptstore (ScriptType, + script) + SELECT 'DropUniqueKey', + N'ALTER TABLE ' + QUOTENAME(@SchemaName) + N'.' + QUOTENAME(@TableName) + N' DROP CONSTRAINT ' + + QUOTENAME(@UQ_name) + N';'; + + -- Generate CREATE CONSTRAINT statement + INSERT INTO #tempscriptstore (ScriptType, + script) + SELECT TOP (1) -- One CREATE statement, even if there are multiple columns + 'AddUniqueKey', + N'ALTER TABLE ' + QUOTENAME(@SchemaName) + N'.' + QUOTENAME(@TableName) + N' ADD CONSTRAINT ' + + QUOTENAME(@UQ_name) + N' UNIQUE ' + CAST(index_type AS nvarchar(100)) + N' (' + + STUFF((SELECT N', ' + uq_col -- This generates a comma-separated list of the columns, in order + FROM #temp_uq + ORDER BY key_ordinal + FOR XML PATH('')), + 1, + 2, + N'') + N')' + index_property + N' ON ' + filegroup_name + N';' + FROM #temp_uq; + + DROP TABLE #temp_uq; + + FETCH NEXT FROM uniquecursor + INTO @UQ_objectid, + @UQ_name, + @UQ_index_id; + END; + CLOSE uniquecursor; + DEALLOCATE uniquecursor; + END; + + FETCH NEXT FROM collationfix + INTO @object_id, + @SchemaName, + @TableName, + @has_key_constraint, + @has_index, + @has_foreign_key, + @has_stats, + @has_unique_constraint; +END; +CLOSE collationfix; +DEALLOCATE collationfix; + +/************************************************************************************************************************************ +* Returns all the created scripts in the correct order for running * +* Also add GO in between some sections so the entire script can execute at once * +************************************************************************************************************************************/ +WITH ScriptInput + AS (SELECT script, + CASE WHEN ScriptType = 'DropForeignKey' + THEN 1 + WHEN ScriptType = 'DropIndex' + THEN 2 + WHEN ScriptType = 'DropUniqueKey' + THEN 3 + WHEN ScriptType = 'DropPrimaryKey' + THEN 4 + WHEN ScriptType = 'DropStatistics' + THEN 5 + WHEN ScriptType = 'AlterCollation' + THEN 7 + WHEN ScriptType = 'AddPrimaryKey' + THEN 9 + WHEN ScriptType = 'AddUniqueKey' + THEN 10 + WHEN ScriptType = 'CreateIndex' + THEN 11 + WHEN ScriptType = 'AddStatistics' + THEN 12 + WHEN ScriptType = 'AddForeignKey' + THEN 13 + WHEN ScriptType = 'DisableForeignKey' + THEN 15 + WHEN ScriptType = 'CheckForeignKey' + THEN 16 + WHEN ScriptType = 'DisableIndex' + THEN 17 + ELSE 99 + END AS SortOrder + FROM #tempscriptstore + UNION ALL + SELECT 'GO', + n.num + FROM (VALUES (6), -- After dropping objects, before changing collations + (8), -- After chaning collations, before re-creating objects + (14), -- After creating objects, before checking and disabling foreign keys and indexes + (18) -- End of script + ) AS n (num) ) +SELECT ScriptInput.script +FROM ScriptInput +ORDER BY ScriptInput.SortOrder; + +DROP TABLE #tempscriptstore; diff --git a/Scripts/Check_Reserved_Words_For_Object_Names.sql b/Scripts/Check_Reserved_Words_For_Object_Names.sql new file mode 100644 index 00000000..0cc64b43 --- /dev/null +++ b/Scripts/Check_Reserved_Words_For_Object_Names.sql @@ -0,0 +1,48 @@ +/* +Author: +Original link: https://www.red-gate.com/simple-talk/blogs/sql-naming-conventions/ +*/ + +SELECT o.name + FROM sys.objects AS o + INNER JOIN + ( + VALUES ('ADD'), ('EXTERNAL'), ('PROCEDURE'), ('ALL'), ('FETCH'), + ('PUBLIC'), ('ALTER'), ('FILE'), ('RAISERROR'), ('AND'), + ('FILLFACTOR'), ('READ'), ('ANY'), ('FOR'), ('READTEXT'), ('AS'), + ('FOREIGN'), ('RECONFIGURE'), ('ASC'), ('FREETEXT'), ('REFERENCES'), + ('AUTHORIZATION'), ('FREETEXTTABLE'), ('REPLICATION'), ('BACKUP'), + ('FROM'), ('RESTORE'), ('BEGIN'), ('FULL'), ('RESTRICT'), ('BETWEEN'), + ('FUNCTION'), ('RETURN'), ('BREAK'), ('GOTO'), ('REVERT'), ('BROWSE'), + ('GRANT'), ('REVOKE'), ('BULK'), ('GROUP'), ('RIGHT'), ('BY'), + ('HAVING'), ('ROLLBACK'), ('CASCADE'), ('HOLDLOCK'), ('ROWCOUNT'), + ('CASE'), ('IDENTITY'), ('ROWGUIDCOL'), ('CHECK'), ('IDENTITY_INSERT'), + ('RULE'), ('CHECKPOINT'), ('IDENTITYCOL'), ('SAVE'), ('CLOSE'), ('IF'), + ('SCHEMA'), ('CLUSTERED'), ('IN'), ('SECURITYAUDIT'), ('COALESCE'), + ('INDEX'), ('SELECT'), ('COLLATE'), ('INNER'), + ('SEMANTICKEYPHRASETABLE'), ('COLUMN'), ('INSERT'), + ('SEMANTICSIMILARITYDETAILSTABLE'), ('COMMIT'), ('INTERSECT'), + ('SEMANTICSIMILARITYTABLE'), ('COMPUTE'), ('INTO'), ('SESSION_USER'), + ('CONSTRAINT'), ('IS'), ('SET'), ('CONTAINS'), ('JOIN'), ('SETUSER'), + ('CONTAINSTABLE'), ('KEY'), ('SHUTDOWN'), ('CONTINUE'), ('KILL'), + ('SOME'), ('CONVERT'), ('LEFT'), ('STATISTICS'), ('CREATE'), ('LIKE'), + ('SYSTEM_USER'), ('CROSS'), ('LINENO'), ('TABLE'), ('CURRENT'), + ('LOAD'), ('TABLESAMPLE'), ('CURRENT_DATE'), ('MERGE'), ('TEXTSIZE'), + ('CURRENT_TIME'), ('NATIONAL'), ('THEN'), ('CURRENT_TIMESTAMP'), + ('NOCHECK'), ('TO'), ('CURRENT_USER'), ('NONCLUSTERED'), ('TOP'), + ('CURSOR'), ('NOT'), ('TRAN'), ('DATABASE'), ('NULL'), ('TRANSACTION'), + ('DBCC'), ('NULLIF'), ('TRIGGER'), ('DEALLOCATE'), ('OF'), + ('TRUNCATE'), ('DECLARE'), ('OFF'), ('TRY_CONVERT'), ('DEFAULT'), + ('OFFSETS'), ('TSEQUAL'), ('DELETE'), ('ON'), ('UNION'), ('DENY'), + ('OPEN'), ('UNIQUE'), ('DESC'), ('OPENDATASOURCE'), ('UNPIVOT'), + ('DISK'), ('OPENQUERY'), ('UPDATE'), ('DISTINCT'), ('OPENROWSET'), + ('UPDATETEXT'), ('DISTRIBUTED'), ('OPENXML'), ('USE'), ('DOUBLE'), + ('OPTION'), ('USER'), ('DROP'), ('OR'), ('VALUES'), ('DUMP'), + ('ORDER'), ('VARYING'), ('ELSE'), ('OUTER'), ('VIEW'), ('END'), + ('OVER'), ('WAITFOR'), ('ERRLVL'), ('PERCENT'), ('WHEN'), ('ESCAPE'), + ('PIVOT'), ('WHERE'), ('EXCEPT'), ('PLAN'), ('WHILE'), ('EXEC'), + ('PRECISION'), ('WITH'), ('EXECUTE'), ('PRIMARY'), ('WITHIN GROUP'), + ('EXISTS'), ('PRINT'), ('WRITETEXT'), ('EXIT'), ('PROC') + ) AS reserved (word) + ON reserved.word = o.name; + diff --git a/Scripts/Checking_Your_Backup_Paths_Exist_and_Automatically_Create_it.sql b/Scripts/Checking_Your_Backup_Paths_Exist_and_Automatically_Create_it.sql new file mode 100644 index 00000000..275c518b --- /dev/null +++ b/Scripts/Checking_Your_Backup_Paths_Exist_and_Automatically_Create_it.sql @@ -0,0 +1,39 @@ +/* +Author: SQL Undercover +Source link: https://sqlundercover.com/2017/09/13/undercover-toolbox-checking-your-backup-paths-exist-and-automatically-creating-them-if-they-dont/ +*/ + +--variable to hold directory to check +DECLARE @Path NVARCHAR(300) = N'C:\Test\Backups'; + +IF OBJECT_ID('tempdb..#xp_fileexist_Results') IS NOT NULL DROP TABLE #xp_fileexist_Results; + +CREATE TABLE #xp_fileexist_Results ( +File_Exists int, +File_is_a_Directory int, +Parent_Directory_Exists int +); + +--check if directory exists +INSERT INTO #xp_fileexist_Results +(File_Exists, File_is_a_Directory, Parent_Directory_Exists) +EXEC master.dbo.xp_fileexist @Path; + +IF EXISTS (SELECT 1 FROM #xp_fileexist_Results WHERE File_is_a_Directory = 1) --if exists PRINT 'Directory Exists' + PRINT 'Directory Exists' +ELSE --if directory doesn't exist, attempt to create it +BEGIN + EXEC xp_create_subdir @Path; + + --perform another existance check to make sure that the directory was actually created + TRUNCATE TABLE #xp_fileexist_Results; + + INSERT INTO #xp_fileexist_Results(File_Exists, File_is_a_Directory, Parent_Directory_Exists) + EXEC master.dbo.xp_fileexist @Path; + + IF EXISTS (SELECT 1 FROM #xp_fileexist_Results WHERE File_is_a_Directory = 1) --if new directory exists PRINT 'Directory Created' + PRINT 'Directory Created' + ELSE + PRINT 'Error Creating Folder' --if new directory doesn't exist then there must have been a problem creating it +END; +GO diff --git a/Scripts/Compare_2_tables_by_column_names.sql b/Scripts/Compare_2_tables_by_column_names.sql new file mode 100644 index 00000000..dd3b6a58 --- /dev/null +++ b/Scripts/Compare_2_tables_by_column_names.sql @@ -0,0 +1,31 @@ +/* +Author: Shane O'Neill +Source link: https://nocolumnname.wordpress.com/2017/04/20/stop-hammer-pivot/ +*/ + +SELECT Pivot1.ColumnName, + Pivot1.[dbo.DifferenceTable01], + Pivot1.[dbo.DifferenceTable02], + CASE WHEN [dbo.DifferenceTable01] = 1 AND [dbo.DifferenceTable02] = 1 + THEN 'Both' + WHEN [dbo.DifferenceTable01] = 1 AND [dbo.DifferenceTable02] IS NULL + THEN 'Table 1 only' + WHEN [dbo.DifferenceTable01] IS NULL AND [dbo.DifferenceTable02] = 1 + THEN 'Table 2 only' + ELSE 'Eh...this should not really happen' + END AS HumanReadableFormat +FROM ( SELECT + c.[name] AS ColumnName, + tb.TableName, + 1 AS ColumnExists + FROM sys.columns AS c + RIGHT JOIN ( VALUES + (OBJECT_ID(N'dbo.DifferenceTable01', N'U'), 'dbo.DifferenceTable01'), + (OBJECT_ID(N'dbo.DifferenceTable02', N'U'), 'dbo.DifferenceTable02') + ) AS tb (ObjectID, TableName) + ON c.object_id = tb.ObjectID + ) AS UnPivotedColumns +PIVOT ( + MAX(ColumnExists) FOR TableName IN ([dbo.DifferenceTable01], [dbo.DifferenceTable02]) + ) AS Pivot1 +ORDER BY Pivot1.ColumnName ASC; diff --git a/Scripts/Configure_SQL_Agent_Alerts.sql b/Scripts/Configure_SQL_Agent_Alerts.sql new file mode 100644 index 00000000..74288e2a --- /dev/null +++ b/Scripts/Configure_SQL_Agent_Alerts.sql @@ -0,0 +1,344 @@ +-- Add important SQL Agent Alerts to your instance + +-- This will work with SQL Server 2008 and newer +-- Glenn Berry +-- SQLskills.com +-- Last Modified: August 11, 2014 +-- http://sqlserverperformance.wordpress.com/ +-- http://sqlskills.com/blogs/glenn/ +-- Twitter: GlennAlanBerry + +-- Listen to my Pluralsight courses +-- http://www.pluralsight.com/author/glenn-berry + +-- Change the @OperatorName as needed + + +USE [msdb]; +GO + +SET NOCOUNT ON; + + +-- Change @OperatorName as needed +DECLARE @OperatorName sysname = N'SQLDBAGroup'; + +-- Change @CategoryName as needed +DECLARE @CategoryName sysname = N'SQL Server Agent Alerts'; + +-- Make sure you have an Agent Operator defined that matches the name you supplied +IF NOT EXISTS(SELECT * FROM msdb.dbo.sysoperators WHERE name = @OperatorName) + BEGIN + RAISERROR ('There is no SQL Operator with a name of %s' , 18 , 16 , @OperatorName); + RETURN; + END + +-- Add Alert Category if it does not exist +IF NOT EXISTS (SELECT * + FROM msdb.dbo.syscategories + WHERE category_class = 2 -- ALERT + AND category_type = 3 + AND name = @CategoryName) + BEGIN + EXEC dbo.sp_add_category @class = N'ALERT', @type = N'NONE', @name = @CategoryName; + END + +-- Get the server name +DECLARE @ServerName sysname = (SELECT @@SERVERNAME); + + +-- Alert Names start with the name of the server +DECLARE @Sev19AlertName sysname = @ServerName + N' Alert - Sev 19 Error: Fatal Error in Resource'; +DECLARE @Sev20AlertName sysname = @ServerName + N' Alert - Sev 20 Error: Fatal Error in Current Process'; +DECLARE @Sev21AlertName sysname = @ServerName + N' Alert - Sev 21 Error: Fatal Error in Database Process'; +DECLARE @Sev22AlertName sysname = @ServerName + N' Alert - Sev 22 Error: Fatal Error: Table Integrity Suspect'; +DECLARE @Sev23AlertName sysname = @ServerName + N' Alert - Sev 23 Error: Fatal Error Database Integrity Suspect'; +DECLARE @Sev24AlertName sysname = @ServerName + N' Alert - Sev 24 Error: Fatal Hardware Error'; +DECLARE @Sev25AlertName sysname = @ServerName + N' Alert - Sev 25 Error: Fatal Error'; +DECLARE @Error823AlertName sysname = @ServerName + N' Alert - Error 823: The operating system returned an error'; +DECLARE @Error824AlertName sysname = @ServerName + N' Alert - Error 824: Logical consistency-based I/O error'; +DECLARE @Error825AlertName sysname = @ServerName + N' Alert - Error 825: Read-Retry Required'; +DECLARE @Error832AlertName sysname = @ServerName + N' Alert - Error 832: Constant page has changed'; +DECLARE @Error855AlertName sysname = @ServerName + N' Alert - Error 855: Uncorrectable hardware memory corruption detected'; +DECLARE @Error856AlertName sysname = @ServerName + N' Alert - Error 856: SQL Server has detected hardware memory corruption, but has recovered the page'; + + + +-- Sev 19 Error: Fatal Error in Resource +IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Sev19AlertName) + EXEC msdb.dbo.sp_add_alert @name = @Sev19AlertName, + @message_id = 0, @severity = 19, @enabled = 1, + @delay_between_responses = 900, @include_event_description_in = 1, + @category_name = @CategoryName, + @job_id = N'00000000-0000-0000-0000-000000000000'; + +-- Add a notification if it does not exist +IF NOT EXISTS(SELECT * + FROM dbo.sysalerts AS sa + INNER JOIN dbo.sysnotifications AS sn + ON sa.id = sn.alert_id + WHERE sa.name = @Sev19AlertName) + BEGIN + EXEC msdb.dbo.sp_add_notification @alert_name = @Sev19AlertName, @operator_name = @OperatorName, @notification_method = 1; + END + + +-- Sev 20 Error: Fatal Error in Current Process +IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Sev20AlertName) + EXEC msdb.dbo.sp_add_alert @name = @Sev20AlertName, + @message_id = 0, @severity = 20, @enabled = 1, + @delay_between_responses = 900, @include_event_description_in = 1, + @category_name = @CategoryName, + @job_id = N'00000000-0000-0000-0000-000000000000' + +-- Add a notification if it does not exist +IF NOT EXISTS(SELECT * + FROM dbo.sysalerts AS sa + INNER JOIN dbo.sysnotifications AS sn + ON sa.id = sn.alert_id + WHERE sa.name = @Sev20AlertName) + BEGIN + EXEC msdb.dbo.sp_add_notification @alert_name = @Sev20AlertName, @operator_name = @OperatorName, @notification_method = 1; + END + + +-- Sev 21 Error: Fatal Error in Database Process +IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Sev21AlertName) + EXEC msdb.dbo.sp_add_alert @name = @Sev21AlertName, + @message_id = 0, @severity = 21, @enabled = 1, + @delay_between_responses = 900, @include_event_description_in = 1, + @category_name = @CategoryName, + @job_id = N'00000000-0000-0000-0000-000000000000'; + +-- Add a notification if it does not exist +IF NOT EXISTS(SELECT * + FROM dbo.sysalerts AS sa + INNER JOIN dbo.sysnotifications AS sn + ON sa.id = sn.alert_id + WHERE sa.name = @Sev21AlertName) + BEGIN + EXEC msdb.dbo.sp_add_notification @alert_name = @Sev21AlertName, @operator_name = @OperatorName, @notification_method = 1; + END + + +-- Sev 22 Error: Fatal Error Table Integrity Suspect +IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Sev22AlertName) + EXEC msdb.dbo.sp_add_alert @name = @Sev22AlertName, + @message_id = 0, @severity = 22, @enabled = 1, + @delay_between_responses = 900, @include_event_description_in = 1, + @category_name = @CategoryName, + @job_id = N'00000000-0000-0000-0000-000000000000'; + +-- Add a notification if it does not exist +IF NOT EXISTS(SELECT * + FROM dbo.sysalerts AS sa + INNER JOIN dbo.sysnotifications AS sn + ON sa.id = sn.alert_id + WHERE sa.name = @Sev22AlertName) + BEGIN + EXEC msdb.dbo.sp_add_notification @alert_name = @Sev22AlertName, @operator_name = @OperatorName, @notification_method = 1; + END + + +-- Sev 23 Error: Fatal Error Database Integrity Suspect +IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Sev23AlertName) + EXEC msdb.dbo.sp_add_alert @name = @Sev23AlertName, + @message_id = 0, @severity = 23, @enabled = 1, + @delay_between_responses = 900, @include_event_description_in = 1, + @category_name = @CategoryName, + @job_id = N'00000000-0000-0000-0000-000000000000'; + +-- Add a notification if it does not exist +IF NOT EXISTS(SELECT * + FROM dbo.sysalerts AS sa + INNER JOIN dbo.sysnotifications AS sn + ON sa.id = sn.alert_id + WHERE sa.name = @Sev23AlertName) + BEGIN + EXEC msdb.dbo.sp_add_notification @alert_name = @Sev23AlertName, @operator_name = @OperatorName, @notification_method = 1; + END + + +-- Sev 24 Error: Fatal Hardware Error +IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Sev24AlertName) + EXEC msdb.dbo.sp_add_alert @name = @Sev24AlertName, + @message_id = 0, @severity = 24, @enabled = 1, + @delay_between_responses = 900, @include_event_description_in = 1, + @category_name = @CategoryName, + @job_id = N'00000000-0000-0000-0000-000000000000'; + +-- Add a notification if it does not exist +IF NOT EXISTS(SELECT * + FROM dbo.sysalerts AS sa + INNER JOIN dbo.sysnotifications AS sn + ON sa.id = sn.alert_id + WHERE sa.name = @Sev24AlertName) + BEGIN + EXEC msdb.dbo.sp_add_notification @alert_name = @Sev24AlertName, @operator_name = @OperatorName, @notification_method = 1; + END + + +-- Sev 25 Error: Fatal Error +IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Sev25AlertName) + EXEC msdb.dbo.sp_add_alert @name = @Sev25AlertName, + @message_id = 0, @severity = 25, @enabled = 1, + @delay_between_responses = 900, @include_event_description_in = 1, + @category_name = @CategoryName, + @job_id = N'00000000-0000-0000-0000-000000000000'; + +-- Add a notification if it does not exist +IF NOT EXISTS(SELECT * + FROM dbo.sysalerts AS sa + INNER JOIN dbo.sysnotifications AS sn + ON sa.id = sn.alert_id + WHERE sa.name = @Sev25AlertName) + BEGIN + EXEC msdb.dbo.sp_add_notification @alert_name = @Sev25AlertName, @operator_name = @OperatorName, @notification_method = 1; + END + +-- Error 823 Alert added on 8/11/2014 + +-- Error 823: Operating System Error +-- How to troubleshoot a Msg 823 error in SQL Server +-- http://support.microsoft.com/kb/2015755 +IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Error823AlertName) + EXEC msdb.dbo.sp_add_alert @name = @Error823AlertName, + @message_id = 823, @severity = 0, @enabled = 1, + @delay_between_responses = 900, @include_event_description_in = 1, + @category_name = @CategoryName, + @job_id = N'00000000-0000-0000-0000-000000000000'; + + +-- Add a notification if it does not exist +IF NOT EXISTS(SELECT * + FROM dbo.sysalerts AS sa + INNER JOIN dbo.sysnotifications AS sn + ON sa.id = sn.alert_id + WHERE sa.name = @Error823AlertName) + BEGIN + EXEC msdb.dbo.sp_add_notification @alert_name = @Error823AlertName, @operator_name = @OperatorName, @notification_method = 1; + END + +-- Error 824 Alert added on 8/11/2014 + +-- Error 824: Logical consistency-based I/O error +-- How to troubleshoot Msg 824 in SQL Server +-- http://support.microsoft.com/kb/2015756 +IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Error824AlertName) + EXEC msdb.dbo.sp_add_alert @name = @Error824AlertName, + @message_id = 824, @severity = 0, @enabled = 1, + @delay_between_responses = 900, @include_event_description_in = 1, + @category_name = @CategoryName, + @job_id = N'00000000-0000-0000-0000-000000000000'; + + +-- Add a notification if it does not exist +IF NOT EXISTS(SELECT * + FROM dbo.sysalerts AS sa + INNER JOIN dbo.sysnotifications AS sn + ON sa.id = sn.alert_id + WHERE sa.name = @Error824AlertName) + BEGIN + EXEC msdb.dbo.sp_add_notification @alert_name = @Error824AlertName, @operator_name = @OperatorName, @notification_method = 1; + END + + +-- Error 825: Read-Retry Required +-- How to troubleshoot Msg 825 (read retry) in SQL Server +-- http://support.microsoft.com/kb/2015757 +IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Error825AlertName) + EXEC msdb.dbo.sp_add_alert @name = @Error825AlertName, + @message_id = 825, @severity = 0, @enabled = 1, + @delay_between_responses = 900, @include_event_description_in = 1, + @category_name = @CategoryName, + @job_id =N'00000000-0000-0000-0000-000000000000'; + + +-- Add a notification if it does not exist +IF NOT EXISTS(SELECT * + FROM dbo.sysalerts AS sa + INNER JOIN dbo.sysnotifications AS sn + ON sa.id = sn.alert_id + WHERE sa.name = @Error825AlertName) + BEGIN + EXEC msdb.dbo.sp_add_notification @alert_name = @Error825AlertName, @operator_name = @OperatorName, @notification_method = 1; + END + +-- Error 832 Alert added on 10/30/2013 + +-- Error 832: Constant page has changed +-- http://www.sqlskills.com/blogs/paul/dont-confuse-error-823-and-error-832/ +-- http://support.microsoft.com/kb/2015759 +IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Error832AlertName) + EXEC msdb.dbo.sp_add_alert @name = @Error832AlertName, + @message_id = 832, @severity = 0, @enabled = 1, + @delay_between_responses = 900, @include_event_description_in = 1, + @category_name = @CategoryName, + @job_id = N'00000000-0000-0000-0000-000000000000'; + + +-- Add a notification if it does not exist +IF NOT EXISTS(SELECT * + FROM dbo.sysalerts AS sa + INNER JOIN dbo.sysnotifications AS sn + ON sa.id = sn.alert_id + WHERE sa.name = @Error832AlertName) + BEGIN + EXEC msdb.dbo.sp_add_notification @alert_name = @Error832AlertName, @operator_name = @OperatorName, @notification_method = 1; + END + + +-- Memory Error Correction alerts added on 10/30/2013 + +-- Mitigation of RAM Hardware Errors +-- When SQL Server 2012 Enterprise Edition is installed on a Windows 2012 operating system with hardware that supports bad memory diagnostics, +-- you will notice new error messages like 854, 855, and 856 instead of the 832 errors that LazyWriter usually generates. +-- Error 854 is just informing you that your instance supports memory error correction + +-- Using SQL Server in Windows 8 and Windows Server 2012 environments +-- http://support.microsoft.com/kb/2681562 + + +-- Check for SQL Server 2012 or greater and Enterprise Edition +-- You also need Windows Server 2012 or greater, plus hardware that supports memory error correction +IF LEFT(CONVERT(CHAR(2),SERVERPROPERTY('ProductVersion')), 2) >= '11' AND SERVERPROPERTY('EngineEdition') = 3 + BEGIN + -- Error 855: Uncorrectable hardware memory corruption detected + IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Error855AlertName) + EXEC msdb.dbo.sp_add_alert @name = @Error855AlertName, + @message_id = 855, @severity = 0, @enabled = 1, + @delay_between_responses = 900, @include_event_description_in = 1, + @category_name = @CategoryName, + @job_id = N'00000000-0000-0000-0000-000000000000'; + + + -- Add a notification if it does not exist + IF NOT EXISTS(SELECT * + FROM dbo.sysalerts AS sa + INNER JOIN dbo.sysnotifications AS sn + ON sa.id = sn.alert_id + WHERE sa.name = @Error855AlertName) + BEGIN + EXEC msdb.dbo.sp_add_notification @alert_name = @Error855AlertName, @operator_name = @OperatorName, @notification_method = 1; + END + + -- Error 856: SQL Server has detected hardware memory corruption, but has recovered the page + IF NOT EXISTS (SELECT name FROM msdb.dbo.sysalerts WHERE name = @Error856AlertName) + EXEC msdb.dbo.sp_add_alert @name = @Error856AlertName, + @message_id = 856, @severity = 0, @enabled = 1, + @delay_between_responses = 900, @include_event_description_in = 1, + @category_name = @CategoryName, + @job_id = N'00000000-0000-0000-0000-000000000000'; + + + -- Add a notification if it does not exist + IF NOT EXISTS(SELECT * + FROM dbo.sysalerts AS sa + INNER JOIN dbo.sysnotifications AS sn + ON sa.id = sn.alert_id + WHERE sa.name = @Error856AlertName) + BEGIN + EXEC msdb.dbo.sp_add_notification @alert_name = @Error856AlertName, @operator_name = @OperatorName, @notification_method = 1; + END + END +GO diff --git a/Scripts/Current_Running_Queries.sql b/Scripts/Current_Running_Queries.sql new file mode 100644 index 00000000..aade227e --- /dev/null +++ b/Scripts/Current_Running_Queries.sql @@ -0,0 +1,65 @@ +/* +Author: Nagaraj +Original link: http://www.sqlservercentral.com/blogs/sql-and-sql-only/2016/08/07/current-running-queries/ +*/ + +SELECT getdate() as dt, +ss.session_id, +db_name(sysprocesses.dbid) as dbname, +er.status as req_status, +ss.login_name, +cs.client_net_address, +ss.program_name, +sysprocesses.open_tran, +er.blocking_session_id, +ss.host_name, +ss.client_interface_name, +[eqp].[query_plan] as qplan, +SUBSTRING(est.text,(er.statement_start_offset/2)+1, +CASE WHEN er.statement_end_offset=-1 OR er.statement_end_offset=0 +THEN (DATALENGTH(est.Text)-er.statement_start_offset/2)+1 +ELSE (er.statement_end_offset-er.statement_start_offset)/2+1 +END) as req_query_text, +er.granted_query_memory, +er.logical_reads as req_logical_reads, +er.cpu_time as req_cpu_time, +er.reads as req_physical_reads, +er.row_count as req_row_count, +er.scheduler_id, +er.total_elapsed_time as req_elapsed_time, +er.start_time as req_start_time, +er.percent_complete, +er.wait_resource as wait_resource, +er.wait_type as req_waittype, +er.wait_time as req_wait_time, +wait.wait_duration_ms as blocking_time_ms, +lock.resource_associated_entity_id, +lock.request_status as lock_request_status, +lock.request_mode as lock_mode, +er.writes as req_writes, +sysprocesses.lastwaittype, +fn_sql.text as session_query, +ss.status as session_status, +ss.cpu_time as session_cpu_time, +ss.reads as session_reads, +ss.writes as session_writes, +ss.logical_reads as session_logical_reads, +ss.memory_usage as session_memory_usage, +ss.last_request_start_time, +ss.last_request_end_time, +ss.total_scheduled_time as session_scheduled_time, +ss.total_elapsed_time as session_elpased_time, +ss.row_count as session_rowcount +FROM sys.dm_exec_sessions ss +INNER JOIN sys.dm_exec_connections cs ON ss.session_id = cs.session_id +OUTER APPLY fn_get_sql(cs.most_recent_sql_handle) as fn_sql +INNER JOIN sys.sysprocesses ON sys.sysprocesses.spid = cs.session_id +LEFT OUTER JOIN sys.dm_exec_requests [er] ON er.session_id = ss.session_id +OUTER APPLY sys.dm_exec_sql_text ([er].[sql_handle]) [est] +OUTER APPLY sys.dm_exec_query_plan ([er].[plan_handle]) [eqp] +LEFT OUTER JOIN sys.dm_os_waiting_tasks wait ON er.session_id = wait.session_id +and wait.wait_type like 'LCK%' and +er.blocking_session_id = wait.blocking_session_id +LEFT OUTER JOIN sys.dm_tran_locks lock ON lock.lock_owner_address = wait.resource_address + AND lock.request_session_id = er.blocking_session_id +WHERE ss.status != 'sleeping'; diff --git a/Scripts/Current_Running_Tasks_and_Server_Info.sql b/Scripts/Current_Running_Tasks_and_Server_Info.sql new file mode 100644 index 00000000..ac8bd89e --- /dev/null +++ b/Scripts/Current_Running_Tasks_and_Server_Info.sql @@ -0,0 +1,1196 @@ +/* + +This script shows current status and activity for currently running tasks on +the SQL Server. It returns 6 recordsets, in the following order: + +1: General server-wide information +2: Database files, usage, disk space +3: Connections by SPID including CPU and I/O totals +4: Running queries, memory use/grant, query plan +5: Open transactions, type, isolation level +6: Locks by object, partition, including size, wait type, blocking info. + +Copyright Daniel Hutmacher under Creative Commons 4.0 license with attribution. +http://creativecommons.org/licenses/by/4.0/ + +Source: http://sqlsunday.com/downloads/ +Version: 2016-10-20 + +DISCLAIMER: This script does not make any modifications to the server, except + for creating three temporary functions in tempdb, used to format + values in a user-friendly manner. However, the script may not be + suitable to run in a production environment. I cannot assume any + responsibility regarding the accuracy of the output information, + performance impacts on your server, or any other consequence. If + your juristiction does not allow for this kind of waiver/disclaimer, + or if you do not accept these terms, you are NOT allowed to store, + distribute or use this code in any way. + +*/ + +USE tempdb; +SET TRANSACTION ISOLATION LEVEL SNAPSHOT; +SET DEADLOCK_PRIORITY LOW; +SET STATISTICS XML OFF; +SET LOCK_TIMEOUT 500; +SET NOCOUNT ON; + +DECLARE @hasPermissions bit=HAS_PERMS_BY_NAME(NULL, NULL, 'VIEW SERVER STATE'); +IF (@hasPermissions=0) BEGIN; + RAISERROR('This script requires VIEW SERVER STATE permissions.', 16, 1); + RETURN; +END; + +SET @hasPermissions=HAS_PERMS_BY_NAME(NULL, 'DATABASE', 'CREATE FUNCTION') +IF (@hasPermissions=0) BEGIN; + RAISERROR('This script requires CREATE FUNCTION permissions in tempdb.', 16, 1); + RETURN; +END; + +------------------------------------------------------------------------------- + + + + + + + + +BEGIN TRANSACTION; +BEGIN TRY; + +------------------------------------------------------------------------------- +--- Temporary functions, used to beautify numbers, bits&bytes and dates. +------------------------------------------------------------------------------- + +IF (NOT EXISTS (SELECT [object_id] FROM sys.objects WHERE [name]='fn_friendly_age')) + EXEC(' +CREATE FUNCTION dbo.fn_friendly_age ( + @from datetime, + @to datetime) +RETURNS varchar(20) +WITH SCHEMABINDING +AS + +BEGIN + DECLARE @age varchar(20) + + IF (@from IS NOT NULL AND @to IS NOT NULL) + SET @age=(CASE + WHEN DATEDIFF(ss, @from, @to)<1 + THEN '' ''+STR(DATEDIFF(ms, @from, @to), 10, 0)+'' ms.'' + + WHEN DATEDIFF(ss, @from, @to)<180 + THEN '' ''+STR(0.001*DATEDIFF(ms, @from, @to), 10, 1)+'' s.'' + + WHEN DATEDIFF(ss, @from, @to)<24*3600 + THEN '' ''+SUBSTRING(CONVERT(varchar(20), DATEADD(ss, DATEDIFF(ss, @from, @to), 0), 120), 12, 8) + + WHEN DATEDIFF(dd, @from, @to)<3 + THEN STR(FLOOR(1.0*DATEDIFF(ss, @from, @to)/(3600*24)), 3, 0)+''d+''+ + SUBSTRING(CONVERT(varchar(20), DATEADD(ss, DATEDIFF(ss, @from, @to), 0), 120), 12, 5)+'' '' + + ELSE STR(FLOOR(1.0*DATEDIFF(ss, @from, @to)/(3600*24)), 3, 0)+''d ''+ + REPLICATE('' '', 5)+'' '' + END) + + RETURN @age +END'); + +IF (NOT EXISTS (SELECT [object_id] FROM sys.objects WHERE [name]='fn_format_number')) + EXEC(' +CREATE FUNCTION dbo.fn_format_number( + @number numeric(28, 8), + @prec tinyint) +RETURNS varchar(100) +WITH SCHEMABINDING +AS + +BEGIN + DECLARE @out varchar(100), @offset int=(CASE WHEN @prec=0 THEN 0 ELSE @prec+1 END) + + SET @out=REVERSE(LTRIM(ISNULL(STR(@number, 20, @prec), ''''))) + WHILE (@offset='11.0') + EXECUTE sp_executesql N' + SELECT @physical_memory=physical_memory_kb*1024, + @virtual_memory=virtual_memory_kb*1024 + FROM sys.dm_os_sys_info', + N'@physical_memory bigint OUTPUT, @virtual_memory bigint OUTPUT', + @physical_memory=@physical_memory OUTPUT, + @virtual_memory=@virtual_memory OUTPUT; + +BEGIN TRY; + EXECUTE sp_executesql N' + SELECT @virtual_machine_type=virtual_machine_type + FROM sys.dm_os_sys_info', + N'@virtual_machine_type int OUTPUT', + @virtual_machine_type=@virtual_machine_type OUTPUT; +END TRY +BEGIN CATCH; + PRINT 'This version of SQL Server does not provide virtual_machine_type.'; +END CATCH; + +------------------------------------------------------------------------------- + +DECLARE @block_chain TABLE ( + spid int NOT NULL, + blocked_by varchar(max) NOT NULL, + PRIMARY KEY CLUSTERED (spid) +); + +DECLARE @blocking TABLE ( + spid int NOT NULL, + blocking varchar(max) NOT NULL, + PRIMARY KEY CLUSTERED (spid) +); + +DECLARE @locks TABLE ( + spid int NOT NULL, + tran_id bigint NOT NULL, + lock_ord int NOT NULL, + mode varchar(255) NOT NULL, + [database] varchar(255) NOT NULL, + [object_id] int NOT NULL, + [object_name] varchar(255) NULL, + index_id int NOT NULL, + index_type tinyint NULL, + index_name varchar(255) NULL, + index_filter varchar(max) NULL, + object_notes varchar(255) NULL, + obj_rows bigint NULL, + partition_number int NOT NULL, + partition_count int NULL, + partition_boundary varchar(max) NULL, + request_owner_type varchar(50) NOT NULL, + wait_type varchar(120) NULL, + wait_time varchar(100) NULL, + blkd_by_spid int NULL, + [count] int NULL, + isWaiting bit NULL, + isBlocking bit NULL, + ident int IDENTITY(1, 1) NOT NULL, + PRIMARY KEY CLUSTERED (spid, tran_id, [object_id], index_id, partition_number, lock_ord, ident) +); + +DECLARE @tran_locks TABLE ( + resource_database_id int NOT NULL, + request_session_id int NOT NULL, + request_owner_id bigint NULL, + request_mode nvarchar(120) NOT NULL, + request_status nvarchar(120) NOT NULL, + resource_type nvarchar(120) NOT NULL, + request_owner_type nvarchar(120) NULL, + lock_owner_address varbinary(8) NOT NULL, + resource_associated_entity_id bigint NULL, + ord int NOT NULL, + PRIMARY KEY CLUSTERED (request_session_id, ord) +); + +INSERT INTO @tran_locks +SELECT resource_database_id, request_session_id, request_owner_id, request_mode, request_status, + resource_type, request_owner_type, lock_owner_address, resource_associated_entity_id, + ROW_NUMBER() OVER (PARTITION BY request_session_id ORDER BY lock_owner_address) AS ord +FROM sys.dm_tran_locks WITH (NOLOCK); + +DECLARE @tran_session_transactions TABLE ( + transaction_id bigint NOT NULL, + session_id int NOT NULL, + is_local bit NOT NULL, + PRIMARY KEY CLUSTERED (transaction_id) +); + +INSERT INTO @tran_session_transactions +SELECT transaction_id, session_id, is_local +FROM sys.dm_tran_session_transactions WITH (NOLOCK); + +DECLARE @exec_sessions TABLE ( + session_id int NOT NULL, + [program_name] nvarchar(256) NULL, + login_name nvarchar(256) NOT NULL, + [status] nvarchar(60) NOT NULL, + last_request_start_time datetime NOT NULL, + cpu_time int NOT NULL, + memory_usage int NOT NULL, + reads bigint NOT NULL, + writes bigint NOT NULL, + logical_reads bigint NOT NULL, + flags varchar(200) NOT NULL, + client_interface_name nvarchar(64) NULL, + PRIMARY KEY CLUSTERED (session_id) +); + +INSERT INTO @exec_sessions +SELECT session_id, [program_name], login_name, [status], last_request_start_time, cpu_time, + memory_usage, reads, writes, logical_reads, + 'arithabort '+(CASE [arithabort] WHEN 1 THEN 'ON' ELSE 'OFF' END)+ + ', quot.id '+(CASE [quoted_identifier] WHEN 1 THEN 'ON' ELSE 'OFF' END)+ + (CASE [ansi_warnings] WHEN 0 THEN ', ansi warn OFF' ELSE '' END)+ + (CASE [ansi_padding] WHEN 0 THEN ', ansi pad OFF' ELSE '' END)+ + (CASE [ansi_nulls] WHEN 0 THEN ', nulls OFF' ELSE '' END)+ + (CASE [concat_null_yields_null] WHEN 0 THEN ', conc.null OFF' ELSE '' END) AS flags, + LEFT(client_interface_name, CHARINDEX(' ', client_interface_name+' ')-1) +FROM sys.dm_exec_sessions WITH (NOLOCK); + +DECLARE @jobs TABLE ( + job_id uniqueidentifier NOT NULL, + job_name sysname NOT NULL, + step_id int NOT NULL, + step_name sysname NOT NULL, + search_name varchar(max) NOT NULL, + PRIMARY KEY CLUSTERED (job_id, step_id) +); + +INSERT INTO @jobs +SELECT j.job_id, j.name AS job_name, js.step_id, js.step_name, ' 0x'+ + SUBSTRING(CAST(j.job_id AS varchar(max)), 7, 2)+ + SUBSTRING(CAST(j.job_id AS varchar(max)), 5, 2)+ + SUBSTRING(CAST(j.job_id AS varchar(max)), 3, 2)+ + SUBSTRING(CAST(j.job_id AS varchar(max)), 1, 2)+ + SUBSTRING(CAST(j.job_id AS varchar(max)), 12, 2)+ + SUBSTRING(CAST(j.job_id AS varchar(max)), 10, 2)+ + SUBSTRING(CAST(j.job_id AS varchar(max)), 17, 2)+ + SUBSTRING(CAST(j.job_id AS varchar(max)), 15, 2)+ + SUBSTRING(CAST(j.job_id AS varchar(max)), 20, 4)+ + SUBSTRING(CAST(j.job_id AS varchar(max)), 25, 12)+'%:% '+ + CAST(js.step_id AS varchar(max))+')' AS search_name +FROM msdb.dbo.sysjobs AS j WITH (NOLOCK) +INNER JOIN msdb.dbo.sysjobsteps AS js WITH (NOLOCK) ON j.job_id=js.job_id; + +DECLARE @exec_requests TABLE ( + session_id int NOT NULL, + request_id int NOT NULL, + database_id smallint NOT NULL, + transaction_isolation_level smallint NOT NULL, + percent_complete real NOT NULL, + total_elapsed_time int NOT NULL, + command varchar(32) NOT NULL, + statement_start_offset int NULL, + statement_end_offset int NULL, + plan_handle varbinary(64) NULL, + _id int IDENTITY(1, 1) NOT NULL, + PRIMARY KEY CLUSTERED (session_id, request_id, _id) +); + +INSERT INTO @exec_requests (session_id, request_id, database_id, transaction_isolation_level, percent_complete, + total_elapsed_time, command, statement_start_offset, statement_end_offset, plan_handle) +SELECT session_id, request_id, database_id, transaction_isolation_level, percent_complete, + total_elapsed_time, command, statement_start_offset, statement_end_offset, plan_handle +FROM sys.dm_exec_requests WITH (NOLOCK); + +DECLARE @exec_connections TABLE ( + session_id int NOT NULL, + client_net_address varchar(48) NULL, + client_tcp_port int NULL, + local_net_address varchar(48) NULL, + auth_scheme nvarchar(80) NOT NULL, + connect_time datetime NOT NULL, + num_reads int NULL, + num_writes int NULL, + most_recent_sql_handle varbinary(64), + PRIMARY KEY CLUSTERED (session_id) +); + +INSERT INTO @exec_connections +SELECT session_id, client_net_address, client_tcp_port, local_net_address, auth_scheme, + connect_time, num_reads, num_writes, most_recent_sql_handle +FROM sys.dm_exec_connections WITH (NOLOCK) +WHERE endpoint_id!=0 AND session_id IS NOT NULL; + +DECLARE @os_tasks TABLE ( + session_id int NOT NULL, + scheduler_id int NOT NULL, + PRIMARY KEY CLUSTERED (session_id, scheduler_id) +); + +INSERT INTO @os_tasks +SELECT DISTINCT session_id, scheduler_id +FROM sys.dm_os_tasks +WHERE session_id IS NOT NULL AND + scheduler_id IS NOT NULL; + +DECLARE @tran_active_transactions TABLE ( + transaction_id bigint NOT NULL, + transaction_begin_time datetime NOT NULL, + transaction_type int NOT NULL, + transaction_state int NOT NULL, + PRIMARY KEY CLUSTERED (transaction_id) +); + +INSERT INTO @tran_active_transactions +SELECT transaction_id, transaction_begin_time, transaction_type, transaction_state +FROM sys.dm_tran_active_transactions WITH (NOLOCK); + +DECLARE @os_waiting_tasks TABLE ( + session_id int NULL, + blocking_session_id int NULL, + waiting_task_address varbinary(8) NOT NULL, + wait_type nvarchar(120) NULL, + wait_duration_ms bigint NULL, + resource_address varbinary(8) NULL, + exec_context_id int NULL, + dupl int NOT NULL, + PRIMARY KEY CLUSTERED (waiting_task_address, dupl) +); + +INSERT INTO @os_waiting_tasks +SELECT session_id, blocking_session_id, waiting_task_address, + wait_type, wait_duration_ms, resource_address, exec_context_id, + ROW_NUMBER() OVER ( + PARTITION BY waiting_task_address + ORDER BY wait_duration_ms, resource_address) AS dupl +FROM sys.dm_os_waiting_tasks WITH (NOLOCK); + +DECLARE @exec_query_memory_grants TABLE ( + session_id int NOT NULL, + request_id int NOT NULL, + requested_mb numeric(16, 3) NOT NULL, + granted_mb numeric(16, 3) NULL, + minimum_required_mb numeric(16, 3) NOT NULL, + used_mb numeric(16, 3) NOT NULL, + max_used_mb numeric(16, 3) NOT NULL, + ideal_mb numeric(16, 3) NOT NULL, + est_query_cost numeric(16, 1) NOT NULL, + PRIMARY KEY CLUSTERED (session_id, request_id) +); + +INSERT INTO @exec_query_memory_grants +SELECT session_id, request_id, + 1.0*requested_memory_kb/1024 AS requested_mb, + 1.0*granted_memory_kb/1024 AS granted_mb, + 1.0*required_memory_kb/1024 AS minimum_required_mb, + ISNULL(1.0*used_memory_kb/1024, 0.0) AS used_mb, + ISNULL(1.0*max_used_memory_kb/1024, 0.0) AS max_used_mb, + 1.0*ideal_memory_kb/1024 AS ideal_mb, + query_cost AS est_query_cost +FROM sys.dm_exec_query_memory_grants WITH (NOLOCK); + +DECLARE @dm_server_services TABLE ( + _id tinyint IDENTITY(1, 1) NOT NULL, + servicename nvarchar(512) NOT NULL, + startup_type_desc nvarchar(512) NOT NULL, + status_desc nvarchar(512) NOT NULL, + service_account nvarchar(512) NOT NULL, + cluster_nodename nvarchar(512) NULL, + PRIMARY KEY CLUSTERED (_id) +); + +BEGIN TRY; + INSERT INTO @dm_server_services + SELECT servicename, startup_type_desc, status_desc, service_account, cluster_nodename + FROM sys.dm_server_services; +END TRY +BEGIN CATCH; + PRINT 'sys.dm_server_services is not supported on this version of SQL Server.'; +END CATCH; + +DECLARE @database_procedures TABLE ( + database_id int NOT NULL, + [object_id] int NOT NULL, + [name] varchar(255) NOT NULL, + PRIMARY KEY CLUSTERED (database_id, [object_id]) +); + +DECLARE @database_objects TABLE ( + database_id int NOT NULL, + [object_id] int NOT NULL, + index_id int NOT NULL, + hobt_id bigint NOT NULL, + [name] varchar(255) NOT NULL, + index_type tinyint NULL, + index_name varchar(255) NULL, + partition_number int NOT NULL, + [rows] bigint NULL, + [type_desc] varchar(255) NOT NULL, + is_clustered bit NULL, + index_filter varchar(max) NULL, + PRIMARY KEY CLUSTERED (database_id, [object_id], hobt_id) +); + +DECLARE @files TABLE ( + database_id int NOT NULL, + [file_id] int NOT NULL, + filetype varchar(20) NOT NULL, + [name] varchar(255) NOT NULL, + drive char(3) NOT NULL, + [filegroup] varchar(255) NULL, + size_mb numeric(18, 2) NOT NULL, + autogrow numeric(18, 2) NULL, + is_percent_growth bit NOT NULL, + max_size_mb numeric(18, 2) NULL, + used_size_mb numeric(18, 2) NULL, + total_bytes bigint NULL, + available_bytes bigint NULL, + file_system_type varchar(100) NULL, + primary_replica sysname NULL, + [availability_mode] tinyint NULL, + suspend_state varchar(255) NULL, + queue_kb bigint NULL, + rpo bigint NULL, + PRIMARY KEY CLUSTERED (database_id, [name]) +); + +DECLARE @parts TABLE ( + database_id int NOT NULL, + [object_id] int NOT NULL, + index_id int NOT NULL, + hobt_id bigint NULL, + boundary_id int NOT NULL, + boundary varchar(max) NULL, + [rows] int NULL, + PRIMARY KEY CLUSTERED (database_id, [object_id], index_id, boundary_id) +); + +DECLARE #cur CURSOR FOR + SELECT name, + --- Databases, schemas, tables, number of rows + 'SELECT '+CAST(database_id AS varchar(max))+', o.[object_id], ISNULL(ix.index_id, 0), p.hobt_id, + s.name+''.''+o.name, ix.[type] AS index_type, ix.name AS index_name, p.partition_number, p.[rows], o.type_desc, + (CASE WHEN cix.[object_id] IS NULL THEN 0 ELSE 1 END) AS is_clustered, + ix.filter_definition + FROM ['+[name]+'].sys.objects AS o WITH (NOLOCK) + INNER JOIN ['+[name]+'].sys.partitions AS p WITH (NOLOCK) ON o.[object_id]=p.[object_id] + INNER JOIN ['+[name]+'].sys.schemas AS s WITH (NOLOCK) ON o.[schema_id]=s.[schema_id] + LEFT JOIN ['+[name]+'].sys.indexes AS ix WITH (NOLOCK) ON p.[object_id]=ix.[object_id] AND p.index_id=ix.index_id + LEFT JOIN ['+[name]+'].sys.indexes AS cix WITH (NOLOCK) ON p.[object_id]=cix.[object_id] AND cix.[type]=1 + ' AS [sql], + + --- Database files + 'USE ['+[name]+']; + SELECT '+CAST(database_id AS varchar(max))+', f.[file_id], f.type_desc AS filetype, + f.name, UPPER(LEFT(f.physical_name, 3)) AS drive, + ds.name AS [filegroup], 1.0*f.size*8/1024 AS size_mb, + (CASE WHEN f.is_percent_growth=1 THEN 1.0*f.growth + ELSE 1.0*f.growth*8/1024 END) AS autogrow, + f.is_percent_growth, ROUND(1.0*NULLIF(f.max_size, -1)*8/1024, 1) AS max_size_mb, + 1.0*FILEPROPERTY(f.name, ''SpaceUsed'')*8/1024 AS used_size_mb, '+ + (CASE WHEN @version>'10.5' OR + @version='10.5' AND CAST(SERVERPROPERTY('ProductLevel') AS varchar(10))>='SP1' THEN ' + v.total_bytes, v.available_bytes, v.file_system_type' ELSE ' + NULL AS total_bytes, NULL AS available_bytes, NULL AS file_system_type' END)+', NULL, NULL, NULL, NULL, NULL + FROM ['+name+'].sys.database_files AS f WITH (NOLOCK) + LEFT JOIN sys.data_spaces AS ds WITH (NOLOCK) ON f.data_space_id=ds.data_space_id'+ + (CASE WHEN @version>'10.5' OR + @version='10.5' AND CAST(SERVERPROPERTY('ProductLevel') AS varchar(10))>='SP1' THEN ' + CROSS APPLY sys.dm_os_volume_stats('+CAST(database_id AS varchar(max))+', f.[file_id]) AS v' ELSE '' END)+ + --- In-memory OLTP tables: + (CASE WHEN @version>='12.0' THEN ' + UNION ALL + SELECT '+CAST(database_id AS varchar(max))+', -1 AS [file_id], ''IN-MEMORY'' AS filetype, + '''' AS [name], ''RAM'' AS drive, + '''' AS [filegroup], 1.0*SUM(xtp.allocated_bytes)/(1024*1024) AS size_mb, + NULL AS autogrow, + 0 AS is_percent_growth, NULL AS max_size_mb, + 1.0*SUM(xtp.used_bytes)/(1024*1024) AS used_size_mb, + NULL AS total_bytes, NULL AS available_bytes, NULL AS file_system_type, NULL, NULL, NULL, NULL, NULL + FROM sys.dm_db_xtp_memory_consumers AS xtp + HAVING COUNT(*)>0' ELSE '' END) AS sql2, + + --- Partitioning schemes, functions, boundaries + 'WITH spc (data_space_id, function_id, pf_name, boundary_id, boundary_value_on_right, [value]) + AS ( SELECT ps.data_space_id, pf.function_id, pf.name AS pf_name, val.boundary_id, pf.boundary_value_on_right, + (CASE SQL_VARIANT_PROPERTY(val.[value], ''BaseType'') + WHEN ''date'' THEN LEFT(CONVERT(varchar(max), val.[value], 120), 10) + WHEN ''datetime'' THEN CONVERT(varchar(max), val.[value], 120) + ELSE CAST(val.[value] AS varchar(max)) + END) AS [value] + FROM ['+[name]+'].sys.partition_range_values AS val WITH (NOLOCK) + INNER JOIN ['+[name]+'].sys.partition_functions AS pf WITH (NOLOCK) ON val.function_id = pf.function_id + INNER JOIN ['+[name]+'].sys.partition_schemes AS ps WITH (NOLOCK) ON pf.function_Id=ps.function_id), + + rng (pf_name, data_space_id, boundary_id, lower_rng, upper_rng) + AS ( SELECT ISNULL(a.pf_name, b.pf_name), + ISNULL(a.data_space_id, b.data_space_id), + ISNULL(a.boundary_id+1, b.boundary_id), + a.[value]+(CASE + WHEN a.boundary_value_on_right=1 THEN ''<='' + WHEN a.boundary_value_on_right=0 THEN ''<'' END), + (CASE WHEN b.boundary_value_on_right=1 THEN ''<''+b.[value] + WHEN b.boundary_value_on_right=0 THEN ''<=''+b.[value] END) + FROM spc AS a + FULL JOIN spc AS b ON + a.function_id=b.function_id AND + a.boundary_id+1=b.boundary_id) + SELECT '+CAST(database_id AS varchar(max))+', ix.[object_id], ix.index_id, p.hobt_id, ISNULL(rng.boundary_id, 0), + ISNULL(rng.lower_rng, '''')+c.name+ISNULL(rng.upper_rng, '''') AS boundary, p.[rows] + FROM rng + INNER JOIN ['+[name]+'].sys.indexes AS ix WITH (NOLOCK) ON ix.data_space_id=rng.data_space_id + INNER JOIN ['+[name]+'].sys.index_columns AS ic WITH (NOLOCK) ON ix.[object_id]=ic.[object_id] AND ix.index_id=ic.index_id AND ic.partition_ordinal>0 + INNER JOIN ['+[name]+'].sys.columns AS c WITH (NOLOCK) ON ic.[object_id]=c.[object_id] AND ic.column_id=c.column_id + LEFT JOIN ['+[name]+'].sys.partitions AS p WITH (NOLOCK) ON ix.[object_id]=p.[object_id] AND ix.index_id=p.index_id AND rng.boundary_id=p.partition_number + ' AS sql3, + + --- Databases, schemas, tables + 'SELECT '+CAST(database_id AS varchar(max))+', o.[object_id], s.name+''.''+o.name + FROM ['+[name]+'].sys.objects AS o WITH (NOLOCK) + INNER JOIN ['+[name]+'].sys.schemas AS s WITH (NOLOCK) ON o.[schema_id]=s.[schema_id] + WHERE o.[type] NOT IN (''U'', ''S'') + ' AS sql4 + + FROM sys.databases WITH (NOLOCK) + WHERE state_desc='ONLINE' AND database_id IN ( + SELECT resource_database_id + FROM @tran_locks); +OPEN #cur; + +FETCH NEXT FROM #cur INTO @name, @sql, @sql2, @sql3, @sql4; +WHILE (@@FETCH_STATUS=0) BEGIN; + BEGIN TRY; + INSERT INTO @database_objects EXEC(@sql); + END TRY + BEGIN CATCH; + PRINT @name+'/schema: '+ERROR_MESSAGE(); + END CATCH; + + BEGIN TRY; + INSERT INTO @files EXEC(@sql2); + END TRY + BEGIN CATCH; + PRINT @name+'/database files: '+ERROR_MESSAGE(); + END CATCH; + + BEGIN TRY; + INSERT INTO @parts EXEC(@sql3); + END TRY + BEGIN CATCH; + PRINT @name+'/partitions: '+ERROR_MESSAGE(); + END CATCH; + + BEGIN TRY; + INSERT INTO @database_procedures EXEC(@sql4); + END TRY + BEGIN CATCH; + PRINT @name+'/tables: '+ERROR_MESSAGE(); + END CATCH; + + FETCH NEXT FROM #cur INTO @name, @sql, @sql2, @sql3, @sql4; +END; + +CLOSE #cur; +DEALLOCATE #cur; + + +------------------------------------------------------------------------------- +--- Availability groups stuff: + +UPDATE f SET f.primary_replica=ags.primary_replica, f.[availability_mode]=ar.[availability_mode], f.suspend_state=x.suspend_state, f.queue_kb=x.queue_kb, f.rpo=x.rpo +FROM @files AS f +INNER JOIN sys.databases AS db ON f.database_id=db.database_id +INNER JOIN sys.availability_replicas AS ar ON db.replica_id=ar.replica_id +--INNER JOIN sys.availability_groups AS ag ON ar.group_id=ag.group_id +INNER JOIN sys.dm_hadr_availability_group_states AS ags ON ar.group_id=ags.group_id +LEFT JOIN ( + SELECT database_id, group_id, (CASE MAX(suspend_reason_desc) + WHEN 'SUSPEND_FROM_USER' THEN 'A user manually suspended data movement' + WHEN 'SUSPEND_FROM_PARTNER' THEN 'The database replica is suspended after a forced failover' + WHEN 'SUSPEND_FROM_REDO' THEN 'An error occurred during the redo phase' + WHEN 'SUSPEND_FROM_APPLY' THEN 'An error occurred when writing the log to file (see error log)' + WHEN 'SUSPEND_FROM_CAPTURE' THEN 'An error occurred while capturing log on the primary replica' + WHEN 'SUSPEND_FROM_RESTART' THEN 'The database replica was suspended before the database was restarted (see error log)' + WHEN 'SUSPEND_FROM_UNDO' THEN 'An error occurred during the undo phase (see error log)' + WHEN 'SUSPEND_FROM_REVALIDATION' THEN 'Log change mismatch is detected on reconnection (see error log)' + WHEN 'SUSPEND_FROM_XRF_UPDATE' THEN 'Unable to find the common log point (see error log)' + ELSE MAX(suspend_reason_desc) + END) AS suspend_state, MAX(log_send_queue_size) AS queue_kb, DATEDIFF(second, MIN(last_commit_time), MAX(last_commit_time)) AS rpo + FROM sys.dm_hadr_database_replica_states + GROUP BY database_id, group_id) AS x ON f.database_id=x.database_id AND ar.group_id=x.group_id; + +------------------------------------------------------------------------------- +--- Beautify names of temp tables: +UPDATE @database_objects +SET [name]=SUBSTRING(LEFT([name], CHARINDEX(REPLICATE('_', 8), [name]+REPLICATE('_', 8))-1), 5, LEN([name])) +WHERE database_id=(SELECT database_id FROM sys.databases WITH (NOLOCK) WHERE [name]='tempdb') AND + REPLACE([name], '_', '.') LIKE 'dbo.#%'+REPLICATE('.', 8)+'[0-9A-F][0-9A-F]%[0-9A-F][0-9A-F]'; + +--- Beautify names of temp table indexes: +UPDATE @database_objects +SET index_name='Primary key' +WHERE database_id=(SELECT database_id FROM sys.databases WITH (NOLOCK) WHERE [name]='tempdb') AND + LEFT(index_name, 12) LIKE 'PK__'+LEFT([name], 8); + +UPDATE @database_objects +SET index_name=REPLACE(RTRIM(REPLACE(LEFT(index_name, LEN(index_name)-16), '_', ' ')), ' ', '_') +WHERE database_id=(SELECT database_id FROM sys.databases WITH (NOLOCK) WHERE [name]='tempdb') AND + REPLACE(index_name, '_', '.') LIKE '%#%'+REPLICATE('[0-9A-F]', 16); + + + +------------------------------------------------------------------------------- +--- Chains of spids that are being blocked, per spid: +WITH blocks (spid, blocked_by, ord) +AS ( + SELECT DISTINCT session_id AS spid, blocking_session_id AS blocked_by, + DENSE_RANK() OVER (PARTITION BY blocking_session_id ORDER BY session_id) AS ord + FROM @os_waiting_tasks + WHERE blocking_session_id IS NOT NULL AND session_id!=blocking_session_id), + + list (spid, blocking, list, ord) +AS ( + SELECT blocked_by AS spid, spid AS blocking, CAST(spid AS varchar(max)) AS list, ord + FROM blocks + WHERE ord=1 + UNION ALL + SELECT c.spid, c.blocking, CAST(c.list+', '+CAST(b.spid AS varchar(max)) AS varchar(max)) AS list, b.ord + FROM list AS c + INNER JOIN blocks AS b ON + c.spid=b.blocked_by AND + c.ord+1=b.ord) + +INSERT INTO @blocking (spid, blocking) +SELECT spid, list AS blocking +FROM list AS l +WHERE ord=(SELECT MAX(ord) FROM list WHERE spid=l.spid); + + + +--- Spids that are blocking other spids (reverse-lookup) +WITH blocks (spid, blocked_by) +AS ( + SELECT DISTINCT session_id AS spid, blocking_session_id AS blocked_by + FROM @os_waiting_tasks + WHERE blocking_session_id IS NOT NULL AND session_id!=blocking_session_id), + + chain (spid, blocked_by, chain, lvl) +AS ( + SELECT spid, blocked_by, CAST(blocked_by AS varchar(max)) AS chain, 1 AS lvl + FROM blocks + UNION ALL + SELECT c.spid, b.blocked_by, CAST(c.chain+' <- '+CAST(b.blocked_by AS varchar(max)) AS varchar(max)) AS chain, lvl+1 + FROM chain AS c + INNER JOIN blocks AS b ON b.spid=c.blocked_by) + +INSERT INTO @block_chain (spid, blocked_by) +SELECT spid, MAX('<- '+chain) +FROM chain AS c +WHERE lvl=(SELECT MAX(lvl) FROM chain WHERE spid=c.spid) +GROUP BY spid; + + + +--- Compile locks +INSERT INTO @locks +SELECT + tl.request_session_id AS spid, + NULLIF(tl.request_owner_id, 0) AS tran_id, + DENSE_RANK() OVER ( + PARTITION BY tl.request_session_id, tl.request_owner_id, obj.[object_id], obj.index_id, obj.partition_number + ORDER BY (CASE WHEN tl.request_mode='GRANT' THEN 1 ELSE 2 END), tl.request_mode + ) AS lock_ord, + ISNULL(NULLIF(tl.request_status, 'GRANT')+' ', '')+tl.request_mode+' '+(CASE tl.resource_type + WHEN 'DATABASE' THEN 'db' + WHEN 'FILE' THEN 'file' + WHEN 'OBJECT' THEN ISNULL(LOWER(REPLACE(REPLACE(REPLACE(obj.type_desc, '_', ' '), 'SQL ', ''), 'USER ', '')), 'obj') + WHEN 'PAGE' THEN 'page' + WHEN 'KEY' THEN 'key' + WHEN 'EXTENT' THEN 'extent' + WHEN 'RID' THEN 'RID' + WHEN 'APPLICATION' THEN 'app' + WHEN 'METADATA' THEN 'metadata' + WHEN 'HOBT' THEN 'HoBT' + WHEN 'ALLOCATION_UNIT' THEN 'alloc unit' + END) AS mode, + db.name AS [database], ISNULL(obj.[object_id], 0), obj.name AS [object_name], + ISNULL(obj.index_id, 0), obj.index_type, obj.index_name, obj.index_filter, + (CASE WHEN obj.type_desc='USER_TABLE' AND obj.is_clustered=1 THEN 'Clustered' + WHEN obj.type_desc='USER_TABLE' THEN 'Heap' + WHEN obj.type_desc='VIEW' AND obj.is_clustered=1 THEN 'Indexed view' + ELSE '' END) AS object_notes, + obj.[rows] AS obj_rows, + ISNULL(obj.partition_number, 0), (SELECT MAX(partition_number) + FROM @database_objects AS sub + WHERE sub.database_id=obj.database_id AND + sub.[object_id]=obj.[object_id] AND + index_id=obj.index_id + ) AS partition_count, + parts.boundary AS partition_boundary, + (CASE tl.request_owner_type + WHEN 'TRANSACTION' THEN 'Trans' --- The request is owned by a transaction. + WHEN 'CURSOR' THEN 'Cursor' --- The request is owned by a cursor. + WHEN 'SESSION' THEN 'Session' --- The request is owned by a user session. + WHEN 'SHARED_TRANSACTION_WORKSPACE' THEN 'Tran ws (shared)' --- The request is owned by the shared part of the transaction workspace. + WHEN 'EXCLUSIVE_TRANSACTION_WORKSPACE' THEN 'Tran ws (excl)' --- The request is owned by the exclusive part of the transaction workspace. + WHEN 'NOTIFICATION_OBJECT' THEN 'Internal' --- The request is owned by an internal SQL Server component. This component has requested the lock manager to notify it when another component is waiting to take the lock. The FileTable feature is a component that uses this value. + END) AS request_owner_type, + wt.wait_type, + dbo.fn_friendly_age(DATEADD(ms, 0-wt.wait_duration_ms, GETDATE()), GETDATE()) AS wait_time, + wt.blocking_session_id AS blkd_by_spid, + COUNT(*) AS [count], + (CASE WHEN tl.request_status='WAIT' THEN 1 ELSE 0 END) AS isWaiting, + 0 AS isBlocking +FROM @tran_locks AS tl +INNER HASH JOIN sys.databases AS db WITH (NOLOCK) ON tl.resource_database_id=db.database_id +INNER HASH JOIN @tran_session_transactions AS st ON tl.request_owner_id=st.transaction_id +LEFT HASH JOIN @os_waiting_tasks AS wt ON tl.lock_owner_address=wt.resource_address +LEFT HASH JOIN @database_objects AS obj ON tl.resource_database_id=obj.database_id AND tl.resource_associated_entity_id IN (obj.[object_id], obj.hobt_id) +LEFT HASH JOIN @parts AS parts ON obj.database_id=parts.database_id AND parts.hobt_id=obj.hobt_id +WHERE tl.request_session_id!=@@SPID +GROUP BY tl.request_session_id, tl.request_owner_id, tl.request_status, tl.request_mode, tl.resource_type, db.name, obj.[object_id], obj.index_id, obj.index_type, + obj.index_name, obj.index_filter, obj.type_desc, obj.[object_id], obj.database_id, obj.is_clustered, obj.name, obj.[rows], + obj.partition_number, parts.boundary, tl.request_owner_type, wt.wait_type, wt.wait_duration_ms, wt.blocking_session_id; + + +--- Update @locks.isBlocking column. +UPDATE blocking +SET blocking.isBlocking=1 +FROM @locks AS blocked +INNER JOIN @locks AS blocking ON + blocked.[database]=blocking.[database] AND + ISNULL(blocked.[object_id], -1)=ISNULL(blocking.[object_id], -1) AND + ISNULL(blocked.index_id, -1)=ISNULL(blocking.index_id, -1) AND + ISNULL(blocked.partition_number, -1)=ISNULL(blocking.partition_number, -1) AND + blocked.tran_id!=blocking.tran_id AND + blocked.spid!=blocking.spid AND + blocked.isWaiting=1; + + + +SET LOCK_TIMEOUT -1; + +------------------------------------------------------------------------------- +--- 1. Server properties: +------------------------------------------------------------------------------- + +SELECT + CAST(SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS varchar(128)) AS [Physical name], + CAST(SERVERPROPERTY('ServerName') AS varchar(128)) AS [Instance name], + (CASE CAST(SERVERPROPERTY('IsClustered') AS bit) WHEN 1 THEN ISNULL('Cluster node '+sqlsrv.cluster_nodename, 'Clustered') ELSE 'Stand-alone' END)+ + (CASE WHEN SERVERPROPERTY('IsHadrEnabled')=1 THEN ' with Availability Groups' ELSE '' END)+ + (CASE @virtual_machine_type + WHEN 1 THEN ' on Hypervisor' + WHEN 2 THEN ' on virtual machine' + ELSE '' END) AS [Configuration], + 'SQL Server '+(CASE @version + WHEN '09.0' THEN '2005' + WHEN '10.0' THEN '2008' + WHEN '10.5' THEN '2008 R2' + WHEN '11.0' THEN '2012' + WHEN '12.0' THEN '2014' + WHEN '13.0' THEN '2016' ELSE @version END)+' '+ + REPLACE(REPLACE(REPLACE( + CAST(SERVERPROPERTY('Edition') AS varchar(128)), ' Edition', ''), + 'Standard', 'Std'), 'Enterprise', 'Ent') AS [Product, edition], + CAST(SERVERPROPERTY('ProductLevel') AS varchar(128))+ISNULL(', '+ + CAST(SERVERPROPERTY('ProductUpdateLevel') AS varchar(128)), '')+' ('+ + CAST(SERVERPROPERTY('ProductVersion') AS varchar(128))+')' AS [Level, CU], + (CASE WHEN @max_server_memory/(1024*1024)>2000000 THEN '' + ELSE + (CASE WHEN @min_server_memory<@max_server_memory AND @min_server_memory>0 + THEN LTRIM(dbo.fn_friendly_size(@min_server_memory))+' - ' + ELSE '' END)+ + LTRIM(dbo.fn_friendly_size(@max_server_memory))+ + (CASE WHEN @max_server_memory!=@physical_memory THEN ' / ' ELSE '' END) END)+ + LTRIM(dbo.fn_friendly_size(@physical_memory)) AS [Min - max / physical mem], +-- dbo.fn_friendly_size(@virtual_memory) AS [Virtual mem], + CAST(sysinfo.cpu_count/sysinfo.hyperthread_ratio AS varchar(10))+ + ISNULL('x'+CAST(NULLIF(sysinfo.hyperthread_ratio, 1) AS varchar(10)), '')+ + ISNULL(' ('+CAST((SELECT NULLIF(MAX(memory_node_id), 0)+1 + FROM sys.dm_os_memory_clerks + WHERE memory_node_id<64) AS varchar(10))+' NUMA)', '') AS [Core count], + ISNULL(CAST(NULLIF(@max_degree_of_parallelism, 0) AS varchar(10)), '-') AS [MaxDOP], + dbo.fn_friendly_age(sysinfo.sqlserver_start_time, GETDATE()) AS Uptime, + CAST(SERVERPROPERTY('Collation') AS varchar(128)) AS [Server collation], + sqlsrv.service_account AS [Service acct], +-- sqlagt.service_account AS [Agent svc acct], + sqlagt.status_desc+' ('+sqlagt.startup_type_desc+')' AS [SQL Server Agent] +FROM sys.dm_os_sys_info AS sysinfo WITH (NOLOCK) +LEFT JOIN @dm_server_services AS sqlsrv ON sqlsrv.servicename LIKE 'SQL Server (%' +LEFT JOIN @dm_server_services AS sqlagt ON sqlagt.servicename LIKE 'SQL Server Agent (%'; + + + +------------------------------------------------------------------------------- +--- 2. Display database file usages: +------------------------------------------------------------------------------- + +SELECT + db.name AS [Database], + UPPER(LEFT(f.filetype, 1))+LOWER(SUBSTRING(f.filetype, 2, 100)) AS [Type], + COALESCE( + (CASE WHEN f.primary_replica=@@SERVERNAME THEN 'Primary AG replica' WHEN f.primary_replica IS NOT NULL THEN (CASE f.[availability_mode] WHEN 1 THEN 'Synchronous AG replica' WHEN 0 THEN 'Async AG replica' ELSE '?' END) END), + LEFT(m.mirroring_role_desc, 1)+LOWER(SUBSTRING(m.mirroring_role_desc, 2, 100)+ + ', '+REPLACE(m.mirroring_state_desc, '_', ' '))+ + (CASE m.mirroring_safety_level WHEN 1 THEN ' (async)' WHEN 2 THEN '(sync)' ELSE '(unknown)' END), '') AS [Mirror/AG], + SUBSTRING( + ISNULL(', '+f.suspend_state, '')+ + ISNULL(', '+LTRIM(dbo.fn_friendly_size(NULLIF(f.queue_kb, 0)*1024))+' queue', '')+ + ISNULL(', '+LTRIM(dbo.fn_friendly_age('00:00:00', DATEADD(second, NULLIF(f.rpo, 0), '00:00:00')))+' RPO', ''), + 3, 1000) [AG state], + (CASE WHEN f.filetype='LOG' AND db.log_reuse_wait_desc!='NOTHING' THEN LEFT(db.log_reuse_wait_desc, 1)+LOWER(SUBSTRING(REPLACE(db.log_reuse_wait_desc, '_', ' '), 2, 1000)) ELSE '' END) AS [Log wait], + UPPER(LEFT(db.recovery_model_desc, 1))+LOWER(SUBSTRING(db.recovery_model_desc, 2, 100)) AS [Recovery model], + f.name AS [File name], + dbo.fn_friendly_size(f.size_mb*@mb) AS [Allocated size], ISNULL((CASE + WHEN f.filetype='IN-MEMORY' THEN 'n/a' + WHEN f.is_percent_growth=1 THEN dbo.fn_format_number(NULLIF(f.autogrow, 0), 1)+'%' + ELSE dbo.fn_friendly_size(NULLIF(f.autogrow, 0)*1.0*@mb) END), 'None') AS [Autogrow], + (CASE WHEN f.max_size_mb=0 THEN '' + WHEN f.max_size_mb IS NULL AND f.filetype='Rows' AND CAST(SERVERPROPERTY('Edition') AS varchar(128)) LIKE '%Express edition%' AND @version>='10.50' THEN dbo.fn_friendly_size(10*@gb)+' (Express ed.)' + WHEN f.max_size_mb IS NULL AND f.filetype='Rows' AND CAST(SERVERPROPERTY('Edition') AS varchar(128)) LIKE '%Express edition%' THEN dbo.fn_friendly_size(4*@gb)+' (Express ed.)' + WHEN f.max_size_mb IS NULL AND f.filetype='IN-MEMORY' THEN 'n/a' + WHEN f.max_size_mb IS NULL THEN '('+ISNULL(f.file_system_type, 'OS')+' max)' + WHEN f.max_size_mb=268435456/128 THEN '(Log max, 2 TB)' + ELSE ISNULL(dbo.fn_friendly_size(f.max_size_mb*@mb), '') END) AS [Max file size], + ISNULL(dbo.fn_friendly_size(f.used_size_mb*@mb), '') AS [File usage], + ISNULL(dbo.fn_format_number(100.0*f.used_size_mb/f.size_mb, 2)+'%', '') AS [File usage %], + f.drive AS [Drive], + ISNULL(LTRIM(dbo.fn_friendly_size(1.0*f.available_bytes))+' of '+ + LTRIM(dbo.fn_friendly_size(1.0*f.total_bytes)), '') AS [Free disk space] +FROM @files AS f +INNER JOIN master.sys.databases AS db WITH (NOLOCK) ON db.database_id=f.database_id +INNER JOIN master.sys.database_mirroring AS m WITH (NOLOCK) ON db.database_id=m.database_id +WHERE f.database_id IN ( + SELECT database_id + FROM @exec_requests + UNION + SELECT DISTINCT resource_database_id + FROM @tran_locks + WHERE request_session_id IN ( + SELECT session_id + FROM @exec_sessions + WHERE login_name=SUSER_SNAME())) +ORDER BY db.name, (CASE f.filetype + WHEN 'ROWS' THEN 0 + WHEN 'LOG' THEN 1 + WHEN 'FILESTREAM' THEN 2 + WHEN 'IN-MEMORY' THEN 3 ELSE 0 END), f.name; + + + +------------------------------------------------------------------------------- +--- 3. Display all sessions: +------------------------------------------------------------------------------- + +SELECT + xc.session_id AS SPID, + ISNULL('"'+job.job_name+'", step '+CAST(job.step_id AS varchar(max))+' "'+job.step_name+'"', + (CASE xs.[program_name] + WHEN 'Microsoft SQL Server Management Studio - Query' THEN 'SSMS Query' + WHEN 'Microsoft SQL Server Management Studio' THEN 'SSMS' + ELSE xs.[program_name] + END)) AS [Application], +-- xs.client_interface_name AS [Interface], +-- ISNULL(NULLIF(xc.client_net_address, xc.local_net_address), 'local')+ISNULL(':'+CAST(xc.client_tcp_port AS varchar(max)), '') AS [Client addr], + xs.login_name+ISNULL(' ('+xc.auth_scheme+')', '') AS [Login name (auth)], + dbo.fn_friendly_age(xc.connect_time, GETDATE()) AS [Conn. age], + ISNULL(dbo.fn_friendly_size(NULLIF(xs.logical_reads*8192, 0)), '') AS [Logical reads], + ISNULL(dbo.fn_friendly_size(NULLIF(xs.reads*8192, 0)), '') AS [Reads], + ISNULL(dbo.fn_friendly_size(NULLIF(xs.writes*8192, 0)), '') AS [Writes], + ISNULL(dbo.fn_friendly_age(0, DATEADD(ms, NULLIF(xs.cpu_time, 0), 0)), '') AS [CPU time], + ISNULL(NULLIF(xs.[status], 'sleeping'), '') AS [State], + ISNULL(CAST(NULLIF(trn.[count], 0) AS varchar(10)), '') AS [Tran count], + ISNULL(blocking.blocking, '') AS [Blocking], + ISNULL(chain.blocked_by, '') AS [Blocked by], + ISNULL(SUBSTRING(cur.x.value('.', 'varchar(1000)'), 3, 1000), '') AS [Cursors], + ISNULL(CAST(NULLIF((SELECT COUNT(*) + FROM @os_tasks AS t + WHERE t.session_id=xc.session_id), 0) AS varchar(10)), '') AS [Schedulers (DOP)], + (CASE WHEN ISNULL(trn.[count], 0)>0 AND xs.[status]='sleeping' THEN dbo.fn_friendly_age(xs.last_request_start_time, GETDATE()) ELSE '' END) AS [Abandoned?], + xs.flags AS [Connection/ANSI flags] +FROM @exec_connections AS xc +LEFT JOIN @exec_sessions AS xs ON xc.session_id=xs.session_id +LEFT JOIN @jobs AS job ON xs.[program_name] LIKE '%'+job.search_name+'%' +LEFT JOIN @block_chain AS chain ON chain.spid=xc.session_id +LEFT JOIN @blocking AS blocking ON blocking.spid=xc.session_id +LEFT JOIN ( + SELECT session_id, COUNT(*) AS [count] + FROM @tran_session_transactions + GROUP BY session_id) AS trn ON xc.session_id=trn.session_id +CROSS APPLY ( + SELECT ', '+[name] + FROM sys.dm_exec_cursors(xc.session_id) + FOR XML PATH(''), TYPE) AS cur(x) +WHERE xc.session_id!=@@SPID +ORDER BY (CASE + WHEN xs.[status] NOT IN ('sleeping', 'dormant') OR ISNULL(trn.[count], 0)>0 THEN 1 + ELSE 2 END), xc.session_id; + + + +------------------------------------------------------------------------------- +--- 4. Running queries: +------------------------------------------------------------------------------- + +SELECT + xc.session_id AS SPID, + ISNULL('"'+job.job_name+'", step '+CAST(job.step_id AS varchar(max))+' "'+job.step_name+'"', + (CASE xs.[program_name] + WHEN 'Microsoft SQL Server Management Studio - Query' THEN 'SSMS Query' + WHEN 'Microsoft SQL Server Management Studio' THEN 'SSMS' + ELSE xs.[program_name] + END)) AS [Application], + ISNULL(dbobj.name, '') AS [Proc], + (CASE WHEN xs.[status] NOT IN ('sleeping', 'dormant') THEN (CASE WHEN cmd.[encrypted]=1 + THEN xr.command+' (encrypted)' + ELSE COALESCE( + SUBSTRING(cmd.[text], xr.statement_start_offset/2, NULLIF(xr.statement_end_offset, -1)/2-xr.statement_start_offset/2), + cmd.[text], + xr.command COLLATE database_default, + '') END) ELSE '('+xs.[status]+')' END) AS [Command/T-SQL], + (CASE WHEN xs.[status]!='sleeping' THEN dbo.fn_friendly_age(xs.last_request_start_time, GETDATE()) ELSE '' END) AS [Stmt age], + ISNULL(dbo.fn_friendly_size(mem.max_used_mb)+(CASE WHEN mem.max_used_mb @MaxDaysWithoutCheckDB THEN 'X' ELSE '' END + , IsDBOnline = r.IsOnline +FROM #Results r +WHERE r.Field = 'dbi_dbccLastKnownGood' + OR r.Field IS NULL; diff --git a/Scripts/Data_Dictionary_Information.sql b/Scripts/Data_Dictionary_Information.sql new file mode 100644 index 00000000..c9f01596 --- /dev/null +++ b/Scripts/Data_Dictionary_Information.sql @@ -0,0 +1,153 @@ +/*-------------------------------------------------------------------------------------------------- +Name: DataDictionarySelect.sql +Purpose: Display information for every column in every table of a database. +Author: Patrick Slesicki +Created: 3/16/2008 +Notes: Select the database to run against and execute. +http://www.sqlservercentral.com/scripts/Data+Dictionary/167354/ +---------------------------------------------------------------------------------------------------- +PRELIMINAIRES +*/-------------------------------------------------------------------------------------------------- +DECLARE + @InstanceName AS nvarchar(128) = @@SERVERNAME + ,@DatabaseName AS nvarchar(128) = DB_NAME() + +SELECT + InstanceName = @InstanceName + ,DatabaseName = @DatabaseName + ,ObjectType = o.type_desc + ,SchemaName = s.name + ,ObjectName = o.name + ,ColumnID = c.column_id + ,ColumnName = c.name + ,SQLServerDataType = CASE + --Variable length fields + WHEN st.name IN('binary', 'char', 'text', 'varbinary', 'varchar') AND c.max_length > -1 THEN st.name + '(' + CONVERT(varchar(6), c.max_length) + ')' + --Unicode fields require twice the storage as standard variable length fields + WHEN st.name IN('nchar', 'ntext', 'nvarchar') AND c.max_length > -1 THEN st.name + '(' + CONVERT(varchar(6), c.max_length / 2) + ')' + --Scale based lengths for date and time fields + WHEN st.name IN('datetime2', 'datetimeoffset', 'time') THEN st.name + '(' + CONVERT(varchar(3), c.scale) + ')' + --Numeric fields with precision and scale + WHEN st.name IN('decimal', 'numeric') THEN st.name + '(' + CONVERT(varchar(3), c.precision) + ', ' + CONVERT(varchar(3), c.scale) + ')' + --Large Object types (LOB) + WHEN st.name NOT IN('geography', 'geometry', 'xml') AND c.max_length = -1 THEN st.name + '(MAX)' + --Everything else + ELSE st.name + END + ,CustomDataTypeName = CASE ut.name + WHEN st.name THEN '' + ELSE ut.name + END + ,Length = c.max_length + ,Precision = c.precision + ,Scale = c.scale + ,IsNullable = c.is_nullable + ,IsIdentity = c.is_identity + ,PrimaryKeyType = ISNULL + ( + ( + SELECT TOP (1) i.type_desc + FROM sys.indexes AS i + JOIN sys.index_columns AS ic + ON i.object_id = ic.object_id + AND i.index_id = ic.index_id + WHERE + ic.object_id = c.object_id + AND ic.column_id = c.column_id + AND i.is_primary_key = 1 + ) + ,'' + ) + ,ForeignKeySource = ISNULL + ( + ( + SELECT TOP (1) QUOTENAME(ss.name) + '.' + QUOTENAME(so.name) + '.' + QUOTENAME(c.name) + FROM sys.foreign_keys AS fk + JOIN sys.foreign_key_columns AS fkc + ON fk.object_id = fkc.constraint_object_id + JOIN sys.objects AS so + ON fkc.referenced_object_id = so.object_id + JOIN sys.schemas AS ss + ON so.schema_id = ss.schema_id + WHERE + fkc.parent_object_id = c.object_id + AND fkc.parent_column_id = c.column_id + ) + ,'' + ) + ,DependentForeignKeyCount = + ( + SELECT COUNT(*) + FROM sys.foreign_key_columns AS fkc + WHERE + c.object_id = fkc.referenced_object_id + AND c.column_id = fkc.referenced_column_id + ) + ,DefaultValue = ISNULL + ( + ( + SELECT TOP (1) dc.definition + FROM sys.default_constraints AS dc + WHERE + c.object_id = dc.parent_object_id + AND c.column_id = dc.parent_column_id + ) + ,'' + ) + ,UniqueConstraintName = ISNULL + ( + ( + SELECT TOP (1) i.name + FROM sys.indexes AS i + JOIN sys.index_columns AS ic + ON i.object_id = ic.object_id + AND i.index_id = ic.index_id + WHERE + ic.object_id = c.object_id + AND ic.column_id = c.column_id + AND i.is_unique_constraint = 1 + ) + ,'' + ) + ,CheckConstraintDefinition = ISNULL + ( + ( + SELECT TOP (1) dc.definition + FROM sys.check_constraints AS dc + WHERE + c.object_id = dc.parent_object_id + AND c.column_id = dc.parent_column_id + ) + ,'' + ) +FROM sys.schemas AS s +JOIN sys.objects AS o + ON s.schema_id = o.schema_id +JOIN sys.columns AS c + ON o.object_id = c.object_id +JOIN sys.types AS ut + ON c.user_type_id = ut.user_type_id +JOIN sys.types AS st + ON ut.system_type_id = st.user_type_id +WHERE + o.type_desc NOT IN('INTERNAL_TABLE', 'SYSTEM_TABLE') + AND s.name NOT IN('cdc', 'sys') + AND o.name NOT LIKE 'MSp%' + AND o.name NOT LIKE 'sys%' + AND o.name NOT LIKE 'SYNC_%' + +ORDER BY + CASE o.type_desc + WHEN 'USER_TABLE' THEN 1 + WHEN 'VIEW' THEN 2 + WHEN 'SQL_INLINE_TABLE_VALUED_FUNCTION' THEN 3 + WHEN 'SQL_TABLE_VALUED_FUNCTION' THEN 4 + ELSE 5 + END + ,s.name + ,o.name + ,c.column_id + +/*-------------------------------------------------------------------------------------------------- +END +*/-------------------------------------------------------------------------------------------------- diff --git a/Scripts/Database_Mail_Configuration.sql b/Scripts/Database_Mail_Configuration.sql new file mode 100644 index 00000000..d1451f2f --- /dev/null +++ b/Scripts/Database_Mail_Configuration.sql @@ -0,0 +1,104 @@ +/* +Author: Tim Ford +Original link: http://sqlmag.com/database-administration/how-set-sql-server-database-mail-one-easy-script +*/ + +==================================== +-- DATABASE MAIL CONFIGURATION +--================================================================ +--========================================================== +-- Create a Database Mail account +--========================================================== +EXECUTE msdb.dbo.sysmail_add_account_sp + @account_name = '', + @description = '', + @email_address = '', + @replyto_address = '', + @display_name = '', + @mailserver_name = '', + @port = ; + + + +--========================================================== +-- Create a Database Mail Profile +--========================================================== +DECLARE @profile_id INT, @profile_description sysname; +SELECT @profile_id = COALESCE(MAX(profile_id),1) FROM msdb.dbo.sysmail_profile +SELECT @profile_description = 'Database Mail Profile for ' + @@servername + + +EXECUTE msdb.dbo.sysmail_add_profile_sp + @profile_name = '', + @description = @profile_description; + +-- Add the account to the profile +EXECUTE msdb.dbo.sysmail_add_profileaccount_sp + @profile_name = '', + @account_name = '', + @sequence_number = @profile_id; + +-- Grant access to the profile to the DBMailUsers role +EXECUTE msdb.dbo.sysmail_add_principalprofile_sp + @profile_name = '', + @principal_id = 0, + @is_default = 1 ; + + +--========================================================== +-- Enable Database Mail +--========================================================== +USE master; +GO + +sp_CONFIGURE 'show advanced', 1 +GO +RECONFIGURE +GO +sp_CONFIGURE 'Database Mail XPs', 1 +GO +RECONFIGURE +GO + + +--EXEC master.dbo.xp_instance_regwrite N'HKEY_LOCAL_MACHINE', N'SOFTWARE\Microsoft\MSSQLServer\SQLServerAgent', N'DatabaseMailProfile', N'REG_SZ', N'' +--EXEC master.dbo.xp_instance_regwrite N'HKEY_LOCAL_MACHINE', N'SOFTWARE\Microsoft\MSSQLServer\SQLServerAgent', N'UseDatabaseMail', N'REG_DWORD', 1 +--GO + +EXEC msdb.dbo.sp_set_sqlagent_properties @email_save_in_sent_folder = 0 +GO + + +--========================================================== +-- Review Outcomes +--========================================================== +SELECT * FROM msdb.dbo.sysmail_profile; +SELECT * FROM msdb.dbo.sysmail_account; +GO + + +--========================================================== +-- Test Database Mail +--========================================================== +DECLARE @sub VARCHAR(100) +DECLARE @body_text NVARCHAR(MAX) +SELECT @sub = 'Test from New SQL install on ' + @@servername +SELECT @body_text = N'This is a test of Database Mail.' + CHAR(13) + CHAR(13) + 'SQL Server Version Info: ' + CAST(@@version AS VARCHAR(500)) + +EXEC msdb.dbo.[sp_send_dbmail] + @profile_name = '' + , @recipients = '' + , @subject = @sub + , @body = @body_text + + + + + +--================================================================ +-- SQL Agent Properties Configuration +--================================================================ +EXEC msdb.dbo.sp_set_sqlagent_properties + @databasemail_profile = '' + , @use_databasemail=1 +GO \ No newline at end of file diff --git a/Scripts/Database_Mail_Problems.sql b/Scripts/Database_Mail_Problems.sql new file mode 100644 index 00000000..98842d5a --- /dev/null +++ b/Scripts/Database_Mail_Problems.sql @@ -0,0 +1,90 @@ +/* +Author: Kenneth Fisher +Original link: https://sqlstudies.com/2013/07/29/notes-on-debugging-database-mail-problems/ +*/ + +USE msdb; +GO + +-- Check that the service broker is enabled on MSDB. +-- Is_broker_enabled must be 1 to use database mail. +SELECT is_broker_enabled FROM sys.databases WHERE name = 'msdb'; +-- Check that Database mail is turned on. +-- Run_value must be 1 to use database mail. +-- If you need to change it this option does not require +-- a server restart to take effect. +EXEC sp_configure 'show advanced options', 1; +GO +RECONFIGURE; +GO +EXEC sp_configure 'Database Mail XPs'; + +-- Check the Mail queues +-- This system stored procedure lists the two Database Mail queues. +-- The optional @queue_type parameter tells it to only list that queue. +-- The list contains the length of the queue (number of emails waiting), +-- the state of the queue (INACTIVE, NOTIFIED, RECEIVES_OCCURRING, the +-- last time the queue was empty and the last time the queue was active. +EXEC msdb.dbo.sysmail_help_queue_sp -- @queue_type = 'Mail' ; + +-- Check the status (STARTED or STOPPED) of the sysmail database queues +-- EXEC msdb.dbo.sysmail_start_sp -- Start the queue +-- EXEC msdb.dbo.sysmail_stop_sp -- Stop the queue +EXEC msdb.dbo.sysmail_help_status_sp; + +-- Check the different database mail settings. +-- These are system stored procedures that list the general +-- settings, accounts, profiles, links between the accounts +-- and profiles and the link between database principles and +-- database mail profiles. +-- These are generally controlled by the database mail wizard. + +EXEC msdb.dbo.sysmail_help_configure_sp; +EXEC msdb.dbo.sysmail_help_account_sp; +-- Check that your server name and server type are correct in the +-- account you are using. +-- Check that your email_address is correct in the account you are +-- using. +EXEC msdb.dbo.sysmail_help_profile_sp; +-- Check that you are using a valid profile in your dbmail command. +EXEC msdb.dbo.sysmail_help_profileaccount_sp; +-- Check that your account and profile are joined together +-- correctly in sysmail_help_profileaccount_sp. +EXEC msdb.dbo.sysmail_help_principalprofile_sp; + +-- Im doing a TOP 100 on these next several queries as they tend +-- to contain a great deal of data. Obviously if you need to get +-- more than 100 rows this can be changed. +-- Check the database mail event log. +-- Particularly for the event_type of "error". These are where you +-- will find the actual sending error. +SELECT TOP 100 * +FROM msdb.dbo.sysmail_event_log +ORDER BY last_mod_date DESC; + +-- Check the actual emails queued +-- Look at sent_status to see 'failed' or 'unsent' emails. +SELECT TOP 100 * +FROM msdb.dbo.sysmail_allitems +ORDER BY last_mod_date DESC; + +-- Check the emails that actually got sent. +-- This is a view on sysmail_allitems WHERE sent_status = 'sent' +SELECT TOP 100 * +FROM msdb.dbo.sysmail_sentitems +ORDER BY last_mod_date DESC; + +-- Check the emails that failed to be sent. +-- This is a view on sysmail_allitems WHERE sent_status = 'failed' +SELECT TOP 100 * +FROM msdb.dbo.sysmail_faileditems +ORDER BY last_mod_date DESC + +-- Clean out unsent emails +-- Usually I do this before releasing the queue again after fixing the problem. +-- Assuming of course that I don't want to send out potentially thousands of +-- emails that are who knows how old. +-- Obviously can be used to clean out emails of any status. +EXEC msdb.dbo.sysmail_delete_mailitems_sp + @sent_before = GETDATE() - 30, + @sent_status = 'unsent'; diff --git a/Scripts/Databases_Report.sql b/Scripts/Databases_Report.sql new file mode 100644 index 00000000..51b4e685 --- /dev/null +++ b/Scripts/Databases_Report.sql @@ -0,0 +1,45 @@ +-- https://stackoverflow.com/a/42508688/2298061 + +IF OBJECT_ID('tempdb..#AllTables','U') IS NOT NULL DROP TABLE #AllTables; + +CREATE TABLE #AllTables( + DBName SYSNAME + , TableCount INT + , ViewCount INT + , ProcedureCount INT + , TriggerCount INT + , FullTextCatalog INT + , XmlIndexes INT + , SpatialIndexes INT + , TableColumnsCount INT +); + +DECLARE @SQL NVARCHAR(MAX); + +SELECT @SQL = COALESCE(@SQL, N'') + N'USE ' + quotename(name) + N'; + INSERT INTO #AllTables + SELECT N' + QUOTENAME(name,'''') + N' AS DBName, + (SELECT COUNT(*) FROM ' + QUOTENAME(name) + N'.sys.tables), + (SELECT COUNT(*) FROM ' + QUOTENAME(name) + N'.sys.views), + (SELECT COUNT(*) FROM ' + QUOTENAME(name) + N'.sys.procedures), + (SELECT COUNT(*) FROM ' + QUOTENAME(name) + N'.sys.triggers), + (SELECT COUNT(*) FROM ' + QUOTENAME(name) + N'.sys.fulltext_catalogs), + (SELECT COUNT(*) FROM ' + QUOTENAME(name) + N'.sys.xml_indexes), + (SELECT COUNT(*) FROM ' + QUOTENAME(name) + N'.sys.spatial_indexes), + (SELECT SUM(max_column_id_used) FROM ' + QUOTENAME(name) + N'.sys.tables); +' +FROM sys.databases +ORDER BY name; + +EXECUTE sp_executesql @SQL; + +SELECT DBName + , TableCount + , ViewCount + , ProcedureCount + , TriggerCount + , FullTextCatalog + , XmlIndexes + , SpatialIndexes + , TableColumnsCount + FROM #AllTables; diff --git a/Scripts/Date Calendar Cross-Reference Table.sql b/Scripts/Date Calendar Cross-Reference Table.sql deleted file mode 100644 index 8b007afd..00000000 --- a/Scripts/Date Calendar Cross-Reference Table.sql +++ /dev/null @@ -1,527 +0,0 @@ -SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED -SET NOCOUNT ON -SET ANSI_WARNINGS OFF -SET ARITHABORT OFF -SET ARITHIGNORE ON -SET TEXTSIZE 2147483647 - - ------------------------------------------------------------------------------------------------------------------------------ --- Script Details: Listing Of Standard Details Related To The Script ------------------------------------------------------------------------------------------------------------------------------ - --- Purpose: Date Calendar Cross-Reference Table --- Create Date (MM/DD/YYYY): 10/29/2009 --- Developer: Sean Smith (s.smith.sql AT gmail DOT com) --- Additional Notes: N/A - - ------------------------------------------------------------------------------------------------------------------------------ --- Modification History: Listing Of All Modifications Since Original Implementation ------------------------------------------------------------------------------------------------------------------------------ - --- Description: Fixed Bug Affecting "month_weekdays_remaining" And "quarter_weekdays_remaining" Columns --- Date (MM/DD/YYYY): 07/02/2014 --- Developer: Sean Smith (s.smith.sql AT gmail DOT com) --- Additional Notes: N/A - - ------------------------------------------------------------------------------------------------------------------------------ --- Declarations / Sets: Declare And Set Variables ------------------------------------------------------------------------------------------------------------------------------ - -DECLARE - @Date_Start AS DATETIME - ,@Date_End AS DATETIME - - -SET @Date_Start = '20000101' - - -SET @Date_End = '20501231' - - ------------------------------------------------------------------------------------------------------------------------------ --- Error Trapping: Check If Permanent Table(s) Already Exist(s) And Drop If Applicable ------------------------------------------------------------------------------------------------------------------------------ - -IF OBJECT_ID (N'dbo.date_calendar', N'U') IS NOT NULL -BEGIN - - DROP TABLE dbo.date_calendar - -END - - ------------------------------------------------------------------------------------------------------------------------------ --- Permanent Table: Create Date Xref Table ------------------------------------------------------------------------------------------------------------------------------ - -CREATE TABLE dbo.date_calendar - - ( - calendar_date DATETIME NOT NULL CONSTRAINT PK_date_calendar_calendar_date PRIMARY KEY CLUSTERED - ,calendar_year SMALLINT NULL - ,calendar_month TINYINT NULL - ,calendar_day TINYINT NULL - ,calendar_quarter TINYINT NULL - ,first_day_in_week DATETIME NULL - ,last_day_in_week DATETIME NULL - ,is_week_in_same_month INT NULL - ,first_day_in_month DATETIME NULL - ,last_day_in_month DATETIME NULL - ,is_last_day_in_month INT NULL - ,first_day_in_quarter DATETIME NULL - ,last_day_in_quarter DATETIME NULL - ,is_last_day_in_quarter INT NULL - ,day_of_week TINYINT NULL - ,week_of_month TINYINT NULL - ,week_of_quarter TINYINT NULL - ,week_of_year TINYINT NULL - ,days_in_month TINYINT NULL - ,month_days_remaining TINYINT NULL - ,weekdays_in_month TINYINT NULL - ,month_weekdays_remaining TINYINT NULL - ,month_weekdays_completed TINYINT NULL - ,days_in_quarter TINYINT NULL - ,quarter_days_remaining TINYINT NULL - ,quarter_days_completed TINYINT NULL - ,weekdays_in_quarter TINYINT NULL - ,quarter_weekdays_remaining TINYINT NULL - ,quarter_weekdays_completed TINYINT NULL - ,day_of_year SMALLINT NULL - ,year_days_remaining SMALLINT NULL - ,is_weekday INT NULL - ,is_leap_year INT NULL - ,day_name VARCHAR (10) NULL - ,month_day_name_instance TINYINT NULL - ,quarter_day_name_instance TINYINT NULL - ,year_day_name_instance TINYINT NULL - ,month_name VARCHAR (10) NULL - ,year_week CHAR (6) NULL - ,year_month CHAR (6) NULL - ,year_quarter CHAR (6) NULL - ) - - ------------------------------------------------------------------------------------------------------------------------------ --- Table Insert: Populate Base Date Values Into Permanent Table Using Common Table Expression (CTE) ------------------------------------------------------------------------------------------------------------------------------ - -;WITH CTE_Date_Base_Table AS - - ( - SELECT - @Date_Start AS calendar_date - - UNION ALL - - SELECT - DATEADD (DAY, 1, cDBT.calendar_date) - FROM - CTE_Date_Base_Table cDBT - WHERE - DATEADD (DAY, 1, cDBT.calendar_date) <= @Date_End - ) - -INSERT INTO dbo.date_calendar - - ( - calendar_date - ) - -SELECT - cDBT.calendar_date -FROM - CTE_Date_Base_Table cDBT -OPTION - (MAXRECURSION 0) - - ------------------------------------------------------------------------------------------------------------------------------ --- Table Update I: Populate Additional Date Xref Table Fields (Pass I) ------------------------------------------------------------------------------------------------------------------------------ - -UPDATE - dbo.date_calendar -SET - calendar_year = DATEPART (YEAR, calendar_date) - ,calendar_month = DATEPART (MONTH, calendar_date) - ,calendar_day = DATEPART (DAY, calendar_date) - ,calendar_quarter = DATEPART (QUARTER, calendar_date) - ,first_day_in_week = DATEADD (DAY, -DATEPART (WEEKDAY, calendar_date) + 1, calendar_date) - ,first_day_in_month = CONVERT (VARCHAR (6), calendar_date, 112) + '01' - ,day_of_week = DATEPART (WEEKDAY, calendar_date) - ,week_of_year = DATEPART (WEEK, calendar_date) - ,day_of_year = DATEPART (DAYOFYEAR, calendar_date) - ,is_weekday = (CASE - WHEN ((@@DATEFIRST - 1) + (DATEPART (WEEKDAY, calendar_date) - 1)) % 7 NOT IN (5, 6) THEN 1 - ELSE 0 - END) - ,day_name = DATENAME (WEEKDAY, calendar_date) - ,month_name = DATENAME (MONTH, calendar_date) - - -ALTER TABLE dbo.date_calendar ALTER COLUMN calendar_year INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN calendar_month INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN calendar_day INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN calendar_quarter INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN first_day_in_week DATETIME NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN first_day_in_month DATETIME NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN day_of_week INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN week_of_year INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN day_of_year INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN is_weekday INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN day_name VARCHAR (10) NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN month_name VARCHAR (10) NOT NULL - - -CREATE NONCLUSTERED INDEX IX_date_calendar_calendar_year ON dbo.date_calendar (calendar_year) - - -CREATE NONCLUSTERED INDEX IX_date_calendar_calendar_month ON dbo.date_calendar (calendar_month) - - -CREATE NONCLUSTERED INDEX IX_date_calendar_calendar_quarter ON dbo.date_calendar (calendar_quarter) - - -CREATE NONCLUSTERED INDEX IX_date_calendar_first_day_in_week ON dbo.date_calendar (first_day_in_week) - - -CREATE NONCLUSTERED INDEX IX_date_calendar_day_of_week ON dbo.date_calendar (day_of_week) - - -CREATE NONCLUSTERED INDEX IX_date_calendar_is_weekday ON dbo.date_calendar (is_weekday) - - ------------------------------------------------------------------------------------------------------------------------------ --- Table Update II: Populate Additional Date Xref Table Fields (Pass II) ------------------------------------------------------------------------------------------------------------------------------ - -UPDATE - DC -SET - DC.last_day_in_week = DC.first_day_in_week + 6 - ,DC.last_day_in_month = DATEADD (MONTH, 1, DC.first_day_in_month) - 1 - ,DC.first_day_in_quarter = sqDC.first_day_in_quarter - ,DC.last_day_in_quarter = sqDC.last_day_in_quarter - ,DC.week_of_month = DATEDIFF (WEEK, DC.first_day_in_month, DC.calendar_date) + 1 - ,DC.week_of_quarter = (DC.week_of_year - sqDC.min_week_of_year_in_quarter) + 1 - ,DC.is_leap_year = (CASE - WHEN DC.calendar_year % 400 = 0 THEN 1 - WHEN DC.calendar_year % 100 = 0 THEN 0 - WHEN DC.calendar_year % 4 = 0 THEN 1 - ELSE 0 - END) - ,DC.year_week = CONVERT (VARCHAR (4), DC.calendar_year) + RIGHT ('0' + CONVERT (VARCHAR (2), DC.week_of_year), 2) - ,DC.year_month = CONVERT (VARCHAR (4), DC.calendar_year) + RIGHT ('0' + CONVERT (VARCHAR (2), DC.calendar_month), 2) - ,DC.year_quarter = CONVERT (VARCHAR (4), DC.calendar_year) + 'Q' + CONVERT (VARCHAR (1), DC.calendar_quarter) -FROM - dbo.date_calendar DC - INNER JOIN - - ( - SELECT - DC.calendar_year - ,DC.calendar_quarter - ,MIN (DC.calendar_date) AS first_day_in_quarter - ,MAX (DC.calendar_date) AS last_day_in_quarter - ,MIN (DC.week_of_year) AS min_week_of_year_in_quarter - FROM - dbo.date_calendar DC - GROUP BY - DC.calendar_year - ,DC.calendar_quarter - ) sqDC ON sqDC.calendar_year = DC.calendar_year AND sqDC.calendar_quarter = DC.calendar_quarter - - -ALTER TABLE dbo.date_calendar ALTER COLUMN last_day_in_week DATETIME NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN last_day_in_month DATETIME NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN first_day_in_quarter DATETIME NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN last_day_in_quarter DATETIME NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN week_of_month INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN week_of_quarter INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN is_leap_year INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN year_week VARCHAR (6) NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN year_month VARCHAR (6) NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN year_quarter VARCHAR (6) NOT NULL - - -CREATE NONCLUSTERED INDEX IX_date_calendar_last_day_in_week ON dbo.date_calendar (last_day_in_week) - - -CREATE NONCLUSTERED INDEX IX_date_calendar_year_month ON dbo.date_calendar (year_month) - - -CREATE NONCLUSTERED INDEX IX_date_calendar_year_quarter ON dbo.date_calendar (year_quarter) - - ------------------------------------------------------------------------------------------------------------------------------ --- Table Update III: Populate Additional Date Xref Table Fields (Pass III) ------------------------------------------------------------------------------------------------------------------------------ - -UPDATE - DC -SET - DC.is_last_day_in_month = (CASE - WHEN DC.last_day_in_month = DC.calendar_date THEN 1 - ELSE 0 - END) - ,DC.is_last_day_in_quarter = (CASE - WHEN DC.last_day_in_quarter = DC.calendar_date THEN 1 - ELSE 0 - END) - ,DC.days_in_month = DATEPART (DAY, DC.last_day_in_month) - ,DC.weekdays_in_month = sqDC1.weekdays_in_month - ,DC.days_in_quarter = DATEDIFF (DAY, DC.first_day_in_quarter, DC.last_day_in_quarter) + 1 - ,DC.quarter_days_remaining = DATEDIFF (DAY, DC.calendar_date, DC.last_day_in_quarter) - ,DC.weekdays_in_quarter = sqDC2.weekdays_in_quarter - ,DC.year_days_remaining = (365 + DC.is_leap_year) - DC.day_of_year -FROM - dbo.date_calendar DC - INNER JOIN - - ( - SELECT - DC.year_month - ,SUM (DC.is_weekday) AS weekdays_in_month - FROM - dbo.date_calendar DC - GROUP BY - DC.year_month - ) sqDC1 ON sqDC1.year_month = DC.year_month - - INNER JOIN - - ( - SELECT - DC.year_quarter - ,SUM (DC.is_weekday) AS weekdays_in_quarter - FROM - dbo.date_calendar DC - GROUP BY - DC.year_quarter - ) sqDC2 ON sqDC2.year_quarter = DC.year_quarter - - -ALTER TABLE dbo.date_calendar ALTER COLUMN is_last_day_in_month INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN is_last_day_in_quarter INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN days_in_month INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN weekdays_in_month INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN days_in_quarter INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN quarter_days_remaining INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN weekdays_in_quarter INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN year_days_remaining INT NOT NULL - - ------------------------------------------------------------------------------------------------------------------------------ --- Table Update IV: Populate Additional Date Xref Table Fields (Pass IV) ------------------------------------------------------------------------------------------------------------------------------ - -UPDATE - DC -SET - DC.month_weekdays_remaining = DC.weekdays_in_month - sqDC.month_weekdays_remaining_subtraction - ,DC.quarter_weekdays_remaining = DC.weekdays_in_quarter - sqDC.quarter_weekdays_remaining_subtraction -FROM - dbo.date_calendar DC - INNER JOIN - - ( - SELECT - DC.calendar_date - ,ROW_NUMBER () OVER - ( - PARTITION BY - DC.year_month - ORDER BY - DC.calendar_date - ) AS month_weekdays_remaining_subtraction - ,ROW_NUMBER () OVER - ( - PARTITION BY - DC.year_quarter - ORDER BY - DC.calendar_date - ) AS quarter_weekdays_remaining_subtraction - FROM - dbo.date_calendar DC - WHERE - DC.is_weekday = 1 - ) sqDC ON sqDC.calendar_date = DC.calendar_date - - ------------------------------------------------------------------------------------------------------------------------------ --- Table Update V: Populate Additional Date Xref Table Fields (Pass V) ------------------------------------------------------------------------------------------------------------------------------ - -UPDATE - DC -SET - DC.month_weekdays_remaining = (CASE - WHEN DC1.calendar_month = DC.calendar_month AND DC1.month_weekdays_remaining IS NOT NULL THEN DC1.month_weekdays_remaining - WHEN DC2.calendar_month = DC.calendar_month AND DC2.month_weekdays_remaining IS NOT NULL THEN DC2.month_weekdays_remaining - ELSE DC.weekdays_in_month - END) - ,DC.quarter_weekdays_remaining = (CASE - WHEN DC1.calendar_quarter = DC.calendar_quarter AND DC1.quarter_weekdays_remaining IS NOT NULL THEN DC1.quarter_weekdays_remaining - WHEN DC2.calendar_quarter = DC.calendar_quarter AND DC2.quarter_weekdays_remaining IS NOT NULL THEN DC2.quarter_weekdays_remaining - ELSE DC.weekdays_in_quarter - END) -FROM - dbo.date_calendar DC - LEFT JOIN dbo.date_calendar DC1 ON DATEADD (DAY, 1, DC1.calendar_date) = DC.calendar_date - LEFT JOIN dbo.date_calendar DC2 ON DATEADD (DAY, 2, DC2.calendar_date) = DC.calendar_date -WHERE - DC.month_weekdays_remaining IS NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN month_weekdays_remaining INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN quarter_weekdays_remaining INT NOT NULL - - ------------------------------------------------------------------------------------------------------------------------------ --- Table Update VI: Populate Additional Date Xref Table Fields (Pass VI) ------------------------------------------------------------------------------------------------------------------------------ - -UPDATE - DC -SET - DC.is_week_in_same_month = sqDC.is_week_in_same_month - ,DC.month_days_remaining = DC.days_in_month - DC.calendar_day - ,DC.month_weekdays_completed = DC.weekdays_in_month - DC.month_weekdays_remaining - ,DC.quarter_days_completed = DC.days_in_quarter - DC.quarter_days_remaining - ,DC.quarter_weekdays_completed = DC.weekdays_in_quarter - DC.quarter_weekdays_remaining - ,DC.month_day_name_instance = sqDC.month_day_name_instance - ,DC.quarter_day_name_instance = sqDC.quarter_day_name_instance - ,DC.year_day_name_instance = sqDC.year_day_name_instance -FROM - dbo.date_calendar DC - INNER JOIN - - ( - SELECT - DC.calendar_date - ,(CASE - WHEN DATEDIFF (MONTH, DC.first_day_in_week, DC.last_day_in_week) = 0 THEN 1 - ELSE 0 - END) AS is_week_in_same_month - ,ROW_NUMBER () OVER - ( - PARTITION BY - DC.year_month - ,DC.day_name - ORDER BY - DC.calendar_date - ) AS month_day_name_instance - ,ROW_NUMBER () OVER - ( - PARTITION BY - DC.year_quarter - ,DC.day_name - ORDER BY - DC.calendar_date - ) AS quarter_day_name_instance - ,ROW_NUMBER () OVER - ( - PARTITION BY - DC.calendar_year - ,DC.day_name - ORDER BY - DC.calendar_date - ) AS year_day_name_instance - FROM - dbo.date_calendar DC - ) sqDC ON sqDC.calendar_date = DC.calendar_date - - -ALTER TABLE dbo.date_calendar ALTER COLUMN is_week_in_same_month INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN month_days_remaining INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN month_weekdays_completed INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN quarter_days_completed INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN quarter_weekdays_completed INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN month_day_name_instance INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN quarter_day_name_instance INT NOT NULL - - -ALTER TABLE dbo.date_calendar ALTER COLUMN year_day_name_instance INT NOT NULL - - ------------------------------------------------------------------------------------------------------------------------------ --- Main Query: Final Display / Output ------------------------------------------------------------------------------------------------------------------------------ - -SELECT - DC.* -FROM - dbo.date_calendar DC -ORDER BY - DC.calendar_date diff --git a/Scripts/Date_Calendar_Cross-Reference_Table.sql b/Scripts/Date_Calendar_Cross-Reference_Table.sql new file mode 100644 index 00000000..77f17d4d --- /dev/null +++ b/Scripts/Date_Calendar_Cross-Reference_Table.sql @@ -0,0 +1,391 @@ +SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; +SET NOCOUNT ON; +/* +.SYNOPSIS + Calendar Cross-Reference Table + +.DESCRIPTION + Listing Of Standard Details Related To The Script + +.LICENSE MIT +Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +.NOTE + Author: Sean Smith (s.smith.sql AT gmail DOT com) + Created date: 2009-10-29 by Sean Smith + Version: 2.0 + Last Modified: 2018-08-28 17:35 UTC+3 by Konstantin Taranov + Main contributors: Sean Smith, Konstantin Taranov + Source: https://github.com/ktaranov/sqlserver-kit/blob/master/Scripts/Date_Calendar_Cross-Reference_Table.sql +*/ + + +----------------------------------------------------------------------------------------------------------------------------- +-- Error Trapping: Check If Permanent Table(s) Already Exist(s) And Drop If Applicable +----------------------------------------------------------------------------------------------------------------------------- +IF OBJECT_ID (N'dbo.date_calendar', N'U') IS NOT NULL +BEGIN + DROP TABLE dbo.date_calendar; +END; +GO + + +----------------------------------------------------------------------------------------------------------------------------- +-- Declarations / Sets: Declare And Set Variables +----------------------------------------------------------------------------------------------------------------------------- +SET DATEFIRST 1; /* https://docs.microsoft.com/en-us/sql/t-sql/statements/set-datefirst-transact-sql */ + +DECLARE @Date_Start AS DATE +DECLARE @Date_End AS DATE; + +SET @Date_Start = '20000101'; +SET @Date_End = '20501231'; + + +----------------------------------------------------------------------------------------------------------------------------- +-- Permanent Table: Create Date Xref Table +----------------------------------------------------------------------------------------------------------------------------- +CREATE TABLE dbo.date_calendar( + calendar_date DATE NOT NULL CONSTRAINT PK_date_calendar_calendar_date PRIMARY KEY CLUSTERED + , calendar_year SMALLINT NULL + , calendar_month TINYINT NULL + , calendar_day TINYINT NULL + , calendar_quarter TINYINT NULL + , first_day_in_week DATETIME NULL + , last_day_in_week DATETIME NULL + , is_week_in_same_month INT NULL + , first_day_in_month DATETIME NULL + , last_day_in_month DATETIME NULL + , is_last_day_in_month INT NULL + , first_day_in_quarter DATETIME NULL + , last_day_in_quarter DATETIME NULL + , is_last_day_in_quarter INT NULL + , day_of_week TINYINT NULL + , week_of_month TINYINT NULL + , week_of_quarter TINYINT NULL + , week_of_year TINYINT NULL + , days_in_month TINYINT NULL + , month_days_remaining TINYINT NULL + , weekdays_in_month TINYINT NULL + , month_weekdays_remaining TINYINT NULL + , month_weekdays_completed TINYINT NULL + , days_in_quarter TINYINT NULL + , quarter_days_remaining TINYINT NULL + , quarter_days_completed TINYINT NULL + , weekdays_in_quarter TINYINT NULL + , quarter_weekdays_remaining TINYINT NULL + , quarter_weekdays_completed TINYINT NULL + , day_of_year SMALLINT NULL + , year_days_remaining SMALLINT NULL + , is_weekday INT NULL + , is_leap_year INT NULL + , day_name VARCHAR (10) NULL + , month_day_name_instance TINYINT NULL + , quarter_day_name_instance TINYINT NULL + , year_day_name_instance TINYINT NULL + , month_name VARCHAR(10) NULL + , year_week CHAR(6) NULL + , year_month CHAR(6) NULL + , year_quarter CHAR(6) NULL + ) + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Insert: Populate Base Date Values Into Permanent Table Using Common Table Expression (CTE) +----------------------------------------------------------------------------------------------------------------------------- +;WITH CTE_Date_Base_Table AS ( + SELECT + @Date_Start AS calendar_date + UNION ALL + SELECT + DATEADD (DAY, 1, cDBT.calendar_date) + FROM + CTE_Date_Base_Table cDBT + WHERE + DATEADD (DAY, 1, cDBT.calendar_date) <= @Date_End +) +INSERT INTO dbo.date_calendar(calendar_date) +SELECT + cDBT.calendar_date +FROM + CTE_Date_Base_Table cDBT +OPTION + (MAXRECURSION 0); + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Update I: Populate Additional Date Xref Table Fields (Pass I) +----------------------------------------------------------------------------------------------------------------------------- +UPDATE dbo.date_calendar +SET + calendar_year = DATEPART (YEAR, calendar_date) + ,calendar_month = DATEPART (MONTH, calendar_date) + ,calendar_day = DATEPART (DAY, calendar_date) + ,calendar_quarter = DATEPART (QUARTER, calendar_date) + ,first_day_in_week = DATEADD (DAY, -DATEPART (WEEKDAY, calendar_date) + 1, calendar_date) + ,first_day_in_month = CONVERT (VARCHAR (6), calendar_date, 112) + '01' + ,day_of_week = DATEPART (WEEKDAY, calendar_date) + ,week_of_year = DATEPART (WEEK, calendar_date) + ,day_of_year = DATEPART (DAYOFYEAR, calendar_date) + ,is_weekday = (CASE + WHEN ((@@DATEFIRST - 1) + (DATEPART (WEEKDAY, calendar_date) - 1)) % 7 NOT IN (5, 6) THEN 1 + ELSE 0 + END) + ,day_name = DATENAME (WEEKDAY, calendar_date) + ,month_name = DATENAME (MONTH, calendar_date); + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Update II: Populate Additional Date Xref Table Fields (Pass II) +----------------------------------------------------------------------------------------------------------------------------- +UPDATE DC +SET + DC.last_day_in_week = DC.first_day_in_week + 6 + ,DC.last_day_in_month = DATEADD (MONTH, 1, DC.first_day_in_month) - 1 + ,DC.first_day_in_quarter = sqDC.first_day_in_quarter + ,DC.last_day_in_quarter = sqDC.last_day_in_quarter + ,DC.week_of_month = DATEDIFF (WEEK, DC.first_day_in_month, DC.calendar_date) + 1 + ,DC.week_of_quarter = (DC.week_of_year - sqDC.min_week_of_year_in_quarter) + 1 + ,DC.is_leap_year = (CASE + WHEN DC.calendar_year % 400 = 0 THEN 1 + WHEN DC.calendar_year % 100 = 0 THEN 0 + WHEN DC.calendar_year % 4 = 0 THEN 1 + ELSE 0 + END) + ,DC.year_week = CONVERT (VARCHAR (4), DC.calendar_year) + RIGHT ('0' + CONVERT (VARCHAR (2), DC.week_of_year), 2) + ,DC.year_month = CONVERT (VARCHAR (4), DC.calendar_year) + RIGHT ('0' + CONVERT (VARCHAR (2), DC.calendar_month), 2) + ,DC.year_quarter = CONVERT (VARCHAR (4), DC.calendar_year) + 'Q' + CONVERT (VARCHAR (1), DC.calendar_quarter) +FROM + dbo.date_calendar DC + INNER JOIN + ( + SELECT + DC.calendar_year + ,DC.calendar_quarter + ,MIN (DC.calendar_date) AS first_day_in_quarter + ,MAX (DC.calendar_date) AS last_day_in_quarter + ,MIN (DC.week_of_year) AS min_week_of_year_in_quarter + FROM + dbo.date_calendar DC + GROUP BY + DC.calendar_year + ,DC.calendar_quarter + ) sqDC ON sqDC.calendar_year = DC.calendar_year AND sqDC.calendar_quarter = DC.calendar_quarter; + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Update III: Populate Additional Date Xref Table Fields (Pass III) +----------------------------------------------------------------------------------------------------------------------------- +UPDATE DC +SET + DC.is_last_day_in_month = (CASE + WHEN DC.last_day_in_month = DC.calendar_date THEN 1 + ELSE 0 + END) + ,DC.is_last_day_in_quarter = (CASE + WHEN DC.last_day_in_quarter = DC.calendar_date THEN 1 + ELSE 0 + END) + ,DC.days_in_month = DATEPART (DAY, DC.last_day_in_month) + ,DC.weekdays_in_month = sqDC1.weekdays_in_month + ,DC.days_in_quarter = DATEDIFF (DAY, DC.first_day_in_quarter, DC.last_day_in_quarter) + 1 + ,DC.quarter_days_remaining = DATEDIFF (DAY, DC.calendar_date, DC.last_day_in_quarter) + ,DC.weekdays_in_quarter = sqDC2.weekdays_in_quarter + ,DC.year_days_remaining = (365 + DC.is_leap_year) - DC.day_of_year +FROM + dbo.date_calendar DC + INNER JOIN + + ( + SELECT + DC.year_month + ,SUM (DC.is_weekday) AS weekdays_in_month + FROM + dbo.date_calendar DC + GROUP BY + DC.year_month + ) sqDC1 ON sqDC1.year_month = DC.year_month + INNER JOIN + ( + SELECT + DC.year_quarter + ,SUM (DC.is_weekday) AS weekdays_in_quarter + FROM + dbo.date_calendar DC + GROUP BY + DC.year_quarter + ) sqDC2 ON sqDC2.year_quarter = DC.year_quarter; + +ALTER TABLE dbo.date_calendar ALTER COLUMN is_last_day_in_month INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN is_last_day_in_quarter INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN days_in_month INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN weekdays_in_month INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN days_in_quarter INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN quarter_days_remaining INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN weekdays_in_quarter INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN year_days_remaining INT NOT NULL; + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Update IV: Populate Additional Date Xref Table Fields (Pass IV) +----------------------------------------------------------------------------------------------------------------------------- +UPDATE DC +SET + DC.month_weekdays_remaining = DC.weekdays_in_month - sqDC.month_weekdays_remaining_subtraction + ,DC.quarter_weekdays_remaining = DC.weekdays_in_quarter - sqDC.quarter_weekdays_remaining_subtraction +FROM + dbo.date_calendar DC + INNER JOIN + ( + SELECT + DC.calendar_date + ,ROW_NUMBER () OVER + ( + PARTITION BY + DC.year_month + ORDER BY + DC.calendar_date + ) AS month_weekdays_remaining_subtraction + ,ROW_NUMBER () OVER + ( + PARTITION BY + DC.year_quarter + ORDER BY + DC.calendar_date + ) AS quarter_weekdays_remaining_subtraction + FROM + dbo.date_calendar DC + WHERE + DC.is_weekday = 1 + ) sqDC ON sqDC.calendar_date = DC.calendar_date; + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Update V: Populate Additional Date Xref Table Fields (Pass V) +----------------------------------------------------------------------------------------------------------------------------- +UPDATE DC +SET + DC.month_weekdays_remaining = (CASE + WHEN DC1.calendar_month = DC.calendar_month AND DC1.month_weekdays_remaining IS NOT NULL THEN DC1.month_weekdays_remaining + WHEN DC2.calendar_month = DC.calendar_month AND DC2.month_weekdays_remaining IS NOT NULL THEN DC2.month_weekdays_remaining + ELSE DC.weekdays_in_month + END) + ,DC.quarter_weekdays_remaining = (CASE + WHEN DC1.calendar_quarter = DC.calendar_quarter AND DC1.quarter_weekdays_remaining IS NOT NULL THEN DC1.quarter_weekdays_remaining + WHEN DC2.calendar_quarter = DC.calendar_quarter AND DC2.quarter_weekdays_remaining IS NOT NULL THEN DC2.quarter_weekdays_remaining + ELSE DC.weekdays_in_quarter + END) +FROM + dbo.date_calendar AS DC + LEFT JOIN dbo.date_calendar DC1 ON DATEADD (DAY, 1, DC1.calendar_date) = DC.calendar_date + LEFT JOIN dbo.date_calendar DC2 ON DATEADD (DAY, 2, DC2.calendar_date) = DC.calendar_date +WHERE + DC.month_weekdays_remaining IS NULL; + +ALTER TABLE dbo.date_calendar ALTER COLUMN month_weekdays_remaining INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN quarter_weekdays_remaining INT NOT NULL; + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Update VI: Populate Additional Date Xref Table Fields (Pass VI) +----------------------------------------------------------------------------------------------------------------------------- +UPDATE DC +SET + DC.is_week_in_same_month = sqDC.is_week_in_same_month + ,DC.month_days_remaining = DC.days_in_month - DC.calendar_day + ,DC.month_weekdays_completed = DC.weekdays_in_month - DC.month_weekdays_remaining + ,DC.quarter_days_completed = DC.days_in_quarter - DC.quarter_days_remaining + ,DC.quarter_weekdays_completed = DC.weekdays_in_quarter - DC.quarter_weekdays_remaining + ,DC.month_day_name_instance = sqDC.month_day_name_instance + ,DC.quarter_day_name_instance = sqDC.quarter_day_name_instance + ,DC.year_day_name_instance = sqDC.year_day_name_instance +FROM + dbo.date_calendar DC + INNER JOIN + ( + SELECT + DC.calendar_date + ,(CASE + WHEN DATEDIFF (MONTH, DC.first_day_in_week, DC.last_day_in_week) = 0 THEN 1 + ELSE 0 + END) AS is_week_in_same_month + ,ROW_NUMBER () OVER + ( + PARTITION BY + DC.year_month + ,DC.day_name + ORDER BY + DC.calendar_date + ) AS month_day_name_instance + ,ROW_NUMBER () OVER + ( + PARTITION BY + DC.year_quarter + ,DC.day_name + ORDER BY + DC.calendar_date + ) AS quarter_day_name_instance + ,ROW_NUMBER () OVER + ( + PARTITION BY + DC.calendar_year + ,DC.day_name + ORDER BY + DC.calendar_date + ) AS year_day_name_instance + FROM + dbo.date_calendar DC + ) sqDC ON sqDC.calendar_date = DC.calendar_date; + + +ALTER TABLE dbo.date_calendar ALTER COLUMN calendar_year INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN calendar_month INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN calendar_day INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN calendar_quarter INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN first_day_in_week DATE NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN first_day_in_month DATE NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN day_of_week INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN week_of_year INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN day_of_year INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN is_weekday INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN day_name VARCHAR (10) NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN month_name VARCHAR (10) NOT NULL; +CREATE NONCLUSTERED INDEX IX_date_calendar_calendar_year ON dbo.date_calendar (calendar_year); +CREATE NONCLUSTERED INDEX IX_date_calendar_calendar_month ON dbo.date_calendar (calendar_month); +CREATE NONCLUSTERED INDEX IX_date_calendar_calendar_quarter ON dbo.date_calendar (calendar_quarter); +CREATE NONCLUSTERED INDEX IX_date_calendar_first_day_in_week ON dbo.date_calendar (first_day_in_week); +CREATE NONCLUSTERED INDEX IX_date_calendar_day_of_week ON dbo.date_calendar (day_of_week); +CREATE NONCLUSTERED INDEX IX_date_calendar_is_weekday ON dbo.date_calendar (is_weekday); +ALTER TABLE dbo.date_calendar ALTER COLUMN last_day_in_week DATE NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN last_day_in_month DATE NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN first_day_in_quarter DATE NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN last_day_in_quarter DATE NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN week_of_month INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN week_of_quarter INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN is_leap_year INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN year_week VARCHAR (6) NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN year_month VARCHAR (6) NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN year_quarter VARCHAR (6) NOT NULL; +CREATE NONCLUSTERED INDEX IX_date_calendar_last_day_in_week ON dbo.date_calendar (last_day_in_week); +CREATE NONCLUSTERED INDEX IX_date_calendar_year_month ON dbo.date_calendar (year_month); +CREATE NONCLUSTERED INDEX IX_date_calendar_year_quarter ON dbo.date_calendar (year_quarter); +ALTER TABLE dbo.date_calendar ALTER COLUMN is_week_in_same_month INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN month_days_remaining INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN month_weekdays_completed INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN quarter_days_completed INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN quarter_weekdays_completed INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN month_day_name_instance INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN quarter_day_name_instance INT NOT NULL; +ALTER TABLE dbo.date_calendar ALTER COLUMN year_day_name_instance INT NOT NULL; + + +----------------------------------------------------------------------------------------------------------------------------- +-- Main Query: Final Display / Output +----------------------------------------------------------------------------------------------------------------------------- +SELECT DC.* +FROM + dbo.date_calendar DC +ORDER BY + DC.calendar_date; diff --git a/Scripts/Date_Format_Cheat_Sheet.sql b/Scripts/Date_Format_Cheat_Sheet.sql new file mode 100644 index 00000000..988f27eb --- /dev/null +++ b/Scripts/Date_Format_Cheat_Sheet.sql @@ -0,0 +1,69 @@ +/* +Author: Aaron Bertrand +Original links: https://www.mssqltips.com/sqlservertip/4052/build-a-cheat-sheet-for-sql-server-date-and-time-formats/ +*/ + +SET NOCOUNT ON; + +DECLARE @sql NVARCHAR(MAX), @v VARCHAR(30), @d DATETIME2(7), @sqlServerMajorVersion TINYINT; +SET @sql = N''; + +-- a random date/time, making sure no single digits for any +-- date parts as these can truncate length of output: +SET @d = '2015-12-31T22:25:59.7901245'; + +SET @sqlServerMajorVersion = CAST(SERVERPROPERTY ('ProductMajorVersion') AS TINYINT); + +CREATE TABLE #s(style VARCHAR(3)); + +-- for SQL Server < 2012 +IF @sqlServerMajorVersion < 12 +BEGIN + +DECLARE @s INT = 0; +WHILE @s <= 255 +BEGIN + BEGIN TRY + SET @sql = N'SELECT @v = CONVERT(VARCHAR(30), @d, ' + RTRIM(@s) + ');'; + EXEC sys.sp_executesql @sql, N'@v VARCHAR(30), @d DATETIME2(7)', @v, @d; + INSERT #s(style) VALUES(@s); + END TRY + BEGIN CATCH + SET @sql = N''; + END CATCH + SET @s = @s + 1; +END +END + +-- for SQL Server >= 2012 +ELSE +BEGIN +SET @sql = N''; + +WITH x(rn) AS +( + SELECT TOP (256) CONVERT(VARCHAR(3), ROW_NUMBER() OVER (ORDER BY name) - 1) + FROM sys.all_objects ORDER BY name +) +SELECT @sql = @sql + N'INSERT #s SELECT ' + rn + ' FROM + (SELECT n = TRY_CONVERT(VARCHAR(30),@d,' + rn + ')) AS x + WHERE n IS NOT NULL;' FROM x; + +EXEC sys.sp_executesql @sql, N'@d DATETIME2(7)', @d; +END + + +SET @sql = N''; + +SELECT @sql = @sql + N' UNION ALL SELECT [style #] = ' + + style + ', expression = N''CONVERT(CHAR('' + +RTRIM(LEN(CONVERT(VARCHAR(30), @d, ' + style + '))) + +''), @d, ' + style + ')'', + [output] = CONVERT(VARCHAR(30), @d, ' + style + ')' +FROM #s; + +SET @sql = STUFF(@sql, 1, 11, N'') + N';'; + +EXEC sys.sp_executesql @sql, N'@d DATETIME2(7)', @d; + +DROP TABLE #s; diff --git a/Scripts/Decrypt T-SQL module.sql b/Scripts/Decrypt T-SQL module.sql new file mode 100644 index 00000000..ccd02246 --- /dev/null +++ b/Scripts/Decrypt T-SQL module.sql @@ -0,0 +1,139 @@ +/* +Author: Daniel Hutmacher +Original link: https://sqlsunday.com/2013/03/24/decrypting-sql-objects/ + +-- Enable Dedicated Administrator Connection +EXEC sp_configure 'remote admin connections', 1; +GO +RECONFIGURE +GO + +-- Who using the Dedicated Admin Connection +SELECT + CASE + WHEN ses.session_id= @@SPID THEN 'It''s me! ' + ELSE '' END + + coalesce(ses.login_name,'???') as WhosGotTheDAC, + ses.session_id, + ses.login_time, + ses.status, + ses.original_login_name +FROM sys.endpoints as en +INNER JOIN sys.dm_exec_sessions ses ON en.endpoint_id=ses.endpoint_id +WHERE en.name='Dedicated Admin Connection'; +*/ + + +SET NOCOUNT ON +DECLARE @owner sysname='dbo', @name sysname='sp_someprocedure'; + +----------------------------------------------------------- +--- Declarations: + +DECLARE @offset int=1; +DECLARE @datalength int; +DECLARE @encrypted_object nvarchar(max); +DECLARE @decrypted_object nvarchar(max)=N''; +DECLARE @fake_object nvarchar(max); +DECLARE @fake_encrypted_object nvarchar(max); +DECLARE @lf nvarchar(max)=NCHAR(13)+NCHAR(10); +DECLARE @type varchar(128); +DECLARE @object_id int=OBJECT_ID('['+@owner+'].['+@name+']'); +DECLARE @a int, @b int, @c int; + +--- Check that the object exists +IF (@object_id IS NULL) BEGIN; + RAISERROR('Object does not exist.', 16, 1); + RETURN; +END; + +--- Check that the object really is encrypted. +IF (NOT EXISTS (SELECT TOP 1 * FROM sys.sql_modules + WHERE [object_id]=@object_id AND [definition] IS NULL)) BEGIN; + RAISERROR('Object is not encrypted.', 16, 1); + RETURN; +END; + +--- Store the SQL type name of the object in @type +SELECT @type=(CASE [type] + WHEN 'P' THEN 'PROCEDURE' + WHEN 'TR' THEN 'TRIGGER' + WHEN 'V' THEN 'VIEW' + ELSE 'FUNCTION' END) +FROM sys.objects +WHERE [object_id]=@object_id; + +--- @encrypted_object is the encrypted, binary, version of the code: +SELECT TOP 1 @encrypted_object=imageval +FROM sys.sysobjvalues +WHERE [objid]=@object_id AND valclass=1 and subobjid=1; + +SET @datalength=DATALENGTH(@encrypted_object)/2; + + +--- We're going to ALTER the existing object to a "known plaintext" +--- with encryption. That way, we can reverse-engineer the encryption +--- key, using the new encrypted object. +--- All of this is done in a transaction that we'll roll back when +--- we're done with it. +SET @fake_object=N'ALTER '+@type+N' ['+@owner+N'].['+@name+N'] +WITH ENCRYPTION AS +'; + +--- Fill the fake object with dashes ("-") until it's as long as +--- the encrypted object. +WHILE (DATALENGTH(@fake_object)/2<@datalength) BEGIN; + IF (DATALENGTH(@fake_object)/2+4000<@datalength) + SET @fake_object=@fake_object+REPLICATE(N'-', 4000); + ELSE + SET @fake_object=@fake_object+REPLICATE(N'-', + @datalength-(DATALENGTH(@fake_object)/2)); +END; + +BEGIN TRANSACTION; + --- Implement the fake encrypted object: + EXEC(@fake_object); + + --- Retrieve the encrypted version of the "known plaintext". + SELECT TOP 1 @fake_encrypted_object=imageval + FROM sys.sysobjvalues + WHERE [objid]=@object_id AND valclass=1 and subobjid=1; + + --- Now that we have the encrypted fake object, roll back + --- the transaction, so we don't break the original object. +ROLLBACK TRANSACTION; + + +--- Change the @fake_object from ALTER to CREATE (because this is +--- how the encrypted objects are stored in the database!) +SET @fake_object='CREATE'+SUBSTRING(@fake_object, 6, LEN(@fake_object)); + +----------------------------------------------------------- +--- Perform decryption using the three versions: the encrypted +--- code, the plaintext fake code and the encrypted fake code. + +WHILE (@offset<=@datalength) BEGIN; + + SELECT + @a=UNICODE(SUBSTRING(@encrypted_object, @offset, 1)), + @b=UNICODE(SUBSTRING(@fake_object, @offset, 1)), + @c=UNICODE(SUBSTRING(@fake_encrypted_object, @offset, 1)); + + SELECT @decrypted_object=@decrypted_object+NCHAR(@a^(@b^@c)), + @offset=@offset+1; +END; + + +----------------------------------------------------------- +--- Print the results: + +WHILE (@decrypted_object IS NOT NULL) BEGIN; + PRINT LEFT(@decrypted_object, + CHARINDEX(@lf, @decrypted_object+@lf)-1); + + SET @decrypted_object=NULLIF( + SUBSTRING(@decrypted_object, + CHARINDEX(@lf, @decrypted_object+@lf)+LEN(@lf), + LEN(@decrypted_object)), ''); +END; +GO diff --git a/Scripts/DetermineSpaceWithinSQLDatabaseFiles.sql b/Scripts/DetermineSpaceWithinSQLDatabaseFiles.sql new file mode 100644 index 00000000..766252d0 --- /dev/null +++ b/Scripts/DetermineSpaceWithinSQLDatabaseFiles.sql @@ -0,0 +1,37 @@ +/* +Author: BradC +Original link: https://dba.stackexchange.com/questions/7917/how-to-determine-used-free-space-within-sql-database-files +Desctiption: Determine used/free space within SQL database files +*/ + + +--This one works for me and seems to be consistent on SQL 2000 to SQL Server 2012 CTP3: +SELECT RTRIM(name) AS [Segment Name], groupid AS [Group Id], filename AS [File Name], + CAST(size/128.0 AS DECIMAL(10,2)) AS [Allocated Size in MB], + CAST(FILEPROPERTY(name, 'SpaceUsed')/128.0 AS DECIMAL(10,2)) AS [Space Used in MB], + CAST([maxsize]/128.0 AS DECIMAL(10,2)) AS [Max in MB], + CAST([maxsize]/128.0-(FILEPROPERTY(name, 'SpaceUsed')/128.0) AS DECIMAL(10,2)) AS [Available Space in MB], + CAST((CAST(FILEPROPERTY(name, 'SpaceUsed')/128.0 AS DECIMAL(10,2))/CAST([maxsize]/128.0 AS DECIMAL(10,2)))*100 AS DECIMAL(10,2)) AS [Percent Used] +FROM sysfiles +ORDER BY groupid DESC + + +--An alternative (not compatible with SQL Server 200) that provides more information, suggested by Tri Effendi SS: +USE [database name] +GO +SELECT + [TYPE] = A.TYPE_DESC + ,[FILE_Name] = A.name + ,[FILEGROUP_NAME] = fg.name + ,[File_Location] = A.PHYSICAL_NAME + ,[FILESIZE_MB] = CONVERT(DECIMAL(10,2),A.SIZE/128.0) + ,[USEDSPACE_MB] = CONVERT(DECIMAL(10,2),A.SIZE/128.0 - ((SIZE/128.0) - CAST(FILEPROPERTY(A.NAME, 'SPACEUSED') AS INT)/128.0)) + ,[FREESPACE_MB] = CONVERT(DECIMAL(10,2),A.SIZE/128.0 - CAST(FILEPROPERTY(A.NAME, 'SPACEUSED') AS INT)/128.0) + ,[FREESPACE_%] = CONVERT(DECIMAL(10,2),((A.SIZE/128.0 - CAST(FILEPROPERTY(A.NAME, 'SPACEUSED') AS INT)/128.0)/(A.SIZE/128.0))*100) + ,[AutoGrow] = 'By ' + CASE is_percent_growth WHEN 0 THEN CAST(growth/128 AS VARCHAR(10)) + ' MB -' + WHEN 1 THEN CAST(growth AS VARCHAR(10)) + '% -' ELSE '' END + + CASE max_size WHEN 0 THEN 'DISABLED' WHEN -1 THEN ' Unrestricted' + ELSE ' Restricted to ' + CAST(max_size/(128*1024) AS VARCHAR(10)) + ' GB' END + + CASE is_percent_growth WHEN 1 THEN ' [autogrowth by percent, BAD setting!]' ELSE '' END +FROM sys.database_files A LEFT JOIN sys.filegroups fg ON A.data_space_id = fg.data_space_id +order by A.TYPE desc, A.NAME; \ No newline at end of file diff --git a/Scripts/Drop_all_objects_in_schema.sql b/Scripts/Drop_all_objects_in_schema.sql new file mode 100644 index 00000000..11e231a9 --- /dev/null +++ b/Scripts/Drop_all_objects_in_schema.sql @@ -0,0 +1,104 @@ +/* +Author: Jason Brimhall +Source link: http://www.sqlservercentral.com/blogs/sqlrnnr/2017/10/27/drop-that-schema/ +*/ + +DECLARE @schemaname SYSNAME = 'dbo'; +IF ( SELECT OBJECT_ID('tempdb.dbo.#dropschema') + ) IS NOT NULL + BEGIN + DROP TABLE #dropschema; + END; +SELECT s.name AS SchName + , o.name AS ObjName + , o.create_date + , o.type_desc + , o.type + , o.parent_object_id + , CASE WHEN o.type IN ( 'F', 'D', 'UQ' ) + THEN 'ALTER TABLE [' + s.name + '].[' + + OBJECT_NAME(o.parent_object_id) + + '] DROP CONSTRAINT [' + o.name + '];' + WHEN o.type IN ( 'P', 'PC' ) + THEN 'DROP PROCEDURE [' + s.name + '].[' + o.name + '];' + WHEN o.type IN ( 'FT', 'FN', 'TF', 'AF', 'FS', 'IF' ) + THEN 'DROP FUNCTION [' + s.name + '].[' + o.name + '];' + WHEN o.type = 'V' + THEN 'DROP VIEW [' + s.name + '].[' + o.name + '];' + WHEN o.type = 'SO' + THEN 'DROP SEQUENCE [' + s.name + '].[' + o.name + '];' + WHEN o.type = 'U' + THEN 'DROP TABLE [' + s.name + '].[' + o.name + '];' + WHEN o.type = 'PG' + THEN 'EXEC sp_control_plan_guide N''DROP'', N''' + o.name + + ''';' + END AS 'DropText' + , CASE WHEN o.type IN ( 'P', 'FN', 'FT', 'TF', 'PC', 'FS', 'AF', 'IF' ) + THEN 1 + WHEN o.type = 'V' THEN 2 + WHEN o.type IN ( 'F', 'D' ) THEN 3 + WHEN o.type = 'SO' THEN 4 + WHEN o.type = 'UQ' THEN 5 + WHEN o.type = 'PG' THEN 6 + WHEN o.type = 'U' THEN 7 + END AS ProcessOrder + INTO #dropschema + FROM sys.objects o + INNER JOIN sys.schemas s + ON o.schema_id = s.schema_id + --left outer join sys.default_constraints dc + -- on o.object_id = dc.parent_object_id + WHERE o.type NOT IN ( 'PK', 'IT', 'S' ) + AND s.name = @schemaname + ORDER BY o.parent_object_id DESC + , o.type; + +IF EXISTS ( SELECT 1 / 0 + FROM #dropschema + WHERE type IN ( 'PC', 'FS', 'AF', 'FT' ) ) + BEGIN + INSERT INTO #dropschema + ( SchName + , ObjName + , create_date + , type_desc + , type + , parent_object_id + , DropText + , ProcessOrder + ) + SELECT '' AS ScheName + , ass.name AS ObjName + , ass.create_date + , 'Assembly' + , 'AS' + , asm.assembly_id + , 'DROP ASSEMBLY [' + ass.name + '];' AS DropText + , 4 AS ProcessOrder + FROM sys.assemblies ass + INNER JOIN sys.assembly_modules asm + ON ass.assembly_id = asm.assembly_id + INNER JOIN sys.objects o + ON asm.object_id = o.object_id; + END; + +INSERT INTO #dropschema + ( DropText + , ProcessOrder + , SchName + , ObjName + , create_date + , parent_object_id + ) + VALUES + ( 'DROP SCHEMA ' + QUOTENAME(@schemaname) + ';' + , 99 + , '' + , '' + , '' + , '' + ); + +SELECT * + FROM #dropschema + ORDER BY ProcessOrder ASC; diff --git a/Scripts/DynamicallyGenerateDMAStatement.sql b/Scripts/DynamicallyGenerateDMAStatement.sql new file mode 100644 index 00000000..828d9967 --- /dev/null +++ b/Scripts/DynamicallyGenerateDMAStatement.sql @@ -0,0 +1,17 @@ +/* +Author: Kenneth Fisher +Original link: https://sqlstudies.com/2017/06/21/query-to-run-command-line-dma-on-each-database +*/ +-- Dynamically generate the command line DMA statement for each database + +SELECT name, '"C:\Program Files\Microsoft Data Migration Assistant\DmaCmd.exe" ' + + '/AssessmentName="DMA_Output" ' + + '/AssessmentDatabases="Server=' + @@ServerName + + ';Initial Catalog=' + sys.databases.name + + ';Integrated Security=true" ' + + '/AssessmentEvaluateCompatibilityIssues /AssessmentOverwriteResult ' + + '/AssessmentResultCSV="\\PathToSaveTo\'+REPLACE(@@ServerName,'\','_')+'\'+sys.databases.name+'.CSV"' + + ' > "\\PathToSaveTo\'+REPLACE(@@ServerName,'\','_')+'\'+sys.databases.name+'.LOG"' +FROM sys.databases WHERE state <> 6 -- exclude offline databases + and database_id > 4 -- Exclude system databases + \ No newline at end of file diff --git a/Scripts/Enable Microsoft.ACE.OLEDB.12.0.sql b/Scripts/Enable Microsoft.ACE.OLEDB.12.0.sql index c2f29fbb..a5ee02e3 100644 --- a/Scripts/Enable Microsoft.ACE.OLEDB.12.0.sql +++ b/Scripts/Enable Microsoft.ACE.OLEDB.12.0.sql @@ -1,8 +1,10 @@ +-- https://social.msdn.microsoft.com/Forums/en-US/1d5c04c7-157f-4955-a14b-41d912d50a64/how-to-fix-error-the-microsoftaceoledb120-provider-is-not-registered-on-the-local-machine + USE master; -sp_configure 'show advanced options', 1; +EXEC sp_configure 'show advanced options', 1; RECONFIGURE; -sp_configure 'Ad Hoc Distributed Queries', 1; +EXEC sp_configure 'Ad Hoc Distributed Queries', 1; RECONFIGURE; GO EXEC sp_MSset_oledb_prop N'Microsoft.ACE.OLEDB.12.0', N'AllowInProcess', 1 diff --git a/Scripts/Estimate_When_Long_Running_SQL_Processes_Will_Finish.sql b/Scripts/Estimate_When_Long_Running_SQL_Processes_Will_Finish.sql new file mode 100644 index 00000000..fb542373 --- /dev/null +++ b/Scripts/Estimate_When_Long_Running_SQL_Processes_Will_Finish.sql @@ -0,0 +1,26 @@ +/* +Author: Tim Ford +Original link: http://sqlmag.com/database-administration/estimate-when-long-running-sql-processes-will-finish +*/ + +SET NOCOUNT ON; + +SELECT R.session_id + , R.percent_complete + , R.total_elapsed_time/1000 AS elapsed_seconds + , R.wait_type + , R.wait_time + , R.last_wait_type + , DATEADD(s,100/((R.percent_complete)/ (R.total_elapsed_time/1000)), R.start_time) AS est_complete_time + , ST.text AS batch_text + , CAST(SUBSTRING(ST.text, R.statement_start_offset / 2, + ( + CASE WHEN R.statement_end_offset = -1 THEN DATALENGTH(ST.text) + ELSE R.statement_end_offset + END - R.statement_start_offset + ) / 2 + ) AS varchar(1024)) AS statement_executing +FROM sys.dm_exec_requests AS R + CROSS APPLY sys.dm_exec_sql_text(R.sql_handle) AS ST +WHERE R.percent_complete > 0 + AND R.session_id <> @@spid; diff --git a/Scripts/Extract_Scale_Part_From_Decimal_Number.sql b/Scripts/Extract_Scale_Part_From_Decimal_Number.sql new file mode 100644 index 00000000..ad5c3915 --- /dev/null +++ b/Scripts/Extract_Scale_Part_From_Decimal_Number.sql @@ -0,0 +1,22 @@ +/* +Author: Pinal Dave +Created Date: 2018-09-12 +Original link: https://blog.sqlauthority.com/2018/09/12/sql-server-simple-method-to-extract-scale-part-from-decimal-number/ +Source link: https://github.com/ktaranov/sqlserver-kit/blob/master/Scripts/Extract_Scale_Part_From_Decimal_Number.sql +Modified: 2018-01-29 by Konstantin Taranov +*/ + +IF OBJECT_ID(N'tempdb..#Numbers', 'U') IS NOT NULL DROP TABLE #Numbers; + +CREATE TABLE #Numbers (DecimalValue DECIMAL(16, 10) NOT NULL); + +INSERT INTO #Numbers(DecimalValue) VALUES (100.0000000001); +INSERT INTO #Numbers(DecimalValue) VALUES (-23.8900000098); +INSERT INTO #Numbers(DecimalValue) VALUES (390.077); +INSERT INTO #Numbers(DecimalValue) VALUES (12.87); +INSERT INTO #Numbers(DecimalValue) VALUES (390.1); + +SELECT DecimalValue + , ABS(DecimalValue)%1 AS DecimalScale + FROM #Numbers; + GO diff --git a/Scripts/Failed_SQL_Server_Agent_Jobs_With_Restart_Command.sql b/Scripts/Failed_SQL_Server_Agent_Jobs_With_Restart_Command.sql new file mode 100644 index 00000000..9282773e --- /dev/null +++ b/Scripts/Failed_SQL_Server_Agent_Jobs_With_Restart_Command.sql @@ -0,0 +1,33 @@ +/* +Author: Max Vernon +Created Date: 2019-02-05 +Original link: https://blog.sqlauthority.com/2018/09/12/sql-server-simple-method-to-extract-scale-part-from-decimal-number/ +Source link: https://github.com/ktaranov/sqlserver-kit/blob/master/Scripts/Failed_SQL_Server_Agent_Jobs_With_Restart_Command.sql +Modified: 2019-02-11 by Konstantin Taranov +*/ + +WITH sys_job_history AS +( + SELECT * + , rn = ROW_NUMBER() OVER (PARTITION BY sjh.job_id ORDER BY msdb.dbo.agent_datetime(sjh.run_date, sjh.run_time) DESC) + FROM msdb.dbo.sysjobhistory sjh + WHERE sjh.step_id > 0 + AND sjh.run_date > CONVERT(int, CONVERT(varchar(8), DATEADD(DAY, -1, GETDATE()), 112)) +) +SELECT sj.name + , sjh.step_name + , sjh.step_id + , sjh.sql_message_id + , sjh.sql_severity + , sjh.message + , sjh.server + , RunDateTime = msdb.dbo.agent_datetime(sjh.run_date, sjh.run_time) + , StartJobCommand = N'EXEC msdb.dbo.sp_start_job @job_name = ''' + sj.name + N''', @step_name = ''' + sjh.step_name + N''';' +FROM sys_job_history sjh + INNER JOIN msdb.dbo.sysjobs sj ON sjh.job_id = sj.job_id + INNER JOIN msdb.dbo.sysjobschedules sjsch ON sj.job_id = sjsch.job_id + INNER JOIN msdb.dbo.sysschedules ss ON sjsch.schedule_id = ss.schedule_id +WHERE sjh.rn = 1 + AND sjh.run_status = 0 --failed + AND ss.enabled = 1 +ORDER BY sj.name; diff --git a/Scripts/Fast_alternative_to_sp_WhoIsActive.sql b/Scripts/Fast_alternative_to_sp_WhoIsActive.sql new file mode 100644 index 00000000..ddc877e5 --- /dev/null +++ b/Scripts/Fast_alternative_to_sp_WhoIsActive.sql @@ -0,0 +1,28 @@ +/* +Author: Arthur Daniels +Created Date: 2019-01-29 +Original link: https://blog.sqlauthority.com/2018/09/12/sql-server-simple-method-to-extract-scale-part-from-decimal-number/ +Source link: https://github.com/ktaranov/sqlserver-kit/blob/master/Scripts/Fast_alternative_to_sp_WhoIsActive.sql +Modified: 2018-01-29 by Konstantin Taranov +*/ + +SELECT s.session_id, + r.start_time, + s.host_name, + s.login_name, + i.event_info, + r.status, + s.program_name, + r.writes, + r.reads, + r.logical_reads, + r.blocking_session_id, + r.wait_type, + r.wait_time, + r.wait_resource +FROM sys.dm_exec_requests AS r + INNER JOIN sys.dm_exec_sessions AS s ON s.session_id = r.session_id +CROSS APPLY sys.dm_exec_input_buffer(s.session_id, r.request_id) as i +WHERE s.session_id <> @@SPID AND + s.is_user_process = 1; +--Remove the line above if you want to see system processes diff --git a/Scripts/FindDBConnectionLeaks.sql b/Scripts/FindDBConnectionLeaks.sql new file mode 100644 index 00000000..b32d5668 --- /dev/null +++ b/Scripts/FindDBConnectionLeaks.sql @@ -0,0 +1,44 @@ +/* +Author: Michael J Swart (@MJSwart) +Original link: https://sqlperformance.com/2017/07/sql-performance/find-database-connection-leaks +Desctiption: Find Database Connection Leaks in Your Application +*/ + +--Finding Your Connection Leaks + +select count(*) as sessions, + s.host_name, + s.host_process_id, + s.program_name, + db_name(s.database_id) as database_name + from sys.dm_exec_sessions s + where is_user_process = 1 + group by host_name, host_process_id, program_name, database_id + order by count(*) desc; + + +--Given a pool, are there sessions that have been sleeping for a while and, if so, +--how long have they been sleeping and what was the last SQL statement they executed? + +declare @host_process_id int = 1508; + declare @host_name sysname = N'SERV4102'; + declare @database_name sysname = N'My_Database'; + + select datediff(minute, s.last_request_end_time, getdate()) as minutes_asleep, + s.session_id, + db_name(s.database_id) as database_name, + s.host_name, + s.host_process_id, + t.text as last_sql, + s.program_name + from sys.dm_exec_connections c + join sys.dm_exec_sessions s + on c.session_id = s.session_id + cross apply sys.dm_exec_sql_text(c.most_recent_sql_handle) t + where s.is_user_process = 1 + and s.status = 'sleeping' + and db_name(s.database_id) = @database_name + and s.host_process_id = @host_process_id + and s.host_name = @host_name + and datediff(second, s.last_request_end_time, getdate()) > 60 + order by s.last_request_end_time; diff --git a/Scripts/FindLongRunningJobSteps.sql b/Scripts/FindLongRunningJobSteps.sql new file mode 100644 index 00000000..01dabe3e --- /dev/null +++ b/Scripts/FindLongRunningJobSteps.sql @@ -0,0 +1,101 @@ +/* +Author: Thomas LaRock +Original link: https://www.mssqltips.com/sqlservertip/4936/how-to-find-long-running-job-steps-in-microsoft-sql-server +Desctiption: How to Find Long Running Job Steps in Microsoft SQL Server +*/ + +/*============================================= + Variables: + @MinHistExecutions - Minimum number of job step executions we want to consider + @MinAvgSecsDuration - Threshold for minimum job step duration we care to monitor + @HistoryStartDate - Start date for historical average + @HistoryEndDate - End date for historical average + + These variables allow for us to control a couple of factors. First + we can focus on job steps that are running long enough on average for + us to be concerned with (say, 30 seconds or more). Second, we can + avoid being alerted by job steps that have run so few times that the + average and standard deviations are not quite stable yet. This script + leaves these variables at 1.0, but I would advise you alter them + upwards after testing. + + Returns: One result set containing a list of job steps that + are currently running and are running longer than two standard deviations + away from their historical average. The "Min Threshold" column + represents the average plus two standard deviations. + + note [1] - comment this line and note [2] line if you want to report on all history for job steps + note [2] - comment just this line is you want to report on running and non-running job steps + =============================================*/ + +DECLARE @HistoryStartDate datetime + ,@HistoryEndDate datetime + ,@MinHistExecutions int + ,@MinAvgSecsDuration int + +SET @HistoryStartDate = '19000101' +SET @HistoryEndDate = GETDATE() +SET @MinHistExecutions = 1.0 +SET @MinAvgSecsDuration = 1.0 + +DECLARE @currently_running_jobs TABLE ( + job_id UNIQUEIDENTIFIER NOT NULL + ,last_run_date INT NOT NULL + ,last_run_time INT NOT NULL + ,next_run_date INT NOT NULL + ,next_run_time INT NOT NULL + ,next_run_schedule_id INT NOT NULL + ,requested_to_run INT NOT NULL + ,request_source INT NOT NULL + ,request_source_id SYSNAME NULL + ,running INT NOT NULL + ,current_step INT NOT NULL + ,current_retry_attempt INT NOT NULL + ,job_state INT NOT NULL + ) + +--capture details on jobs +INSERT INTO @currently_running_jobs +EXECUTE master.dbo.xp_sqlagent_enum_jobs 1,'' + +;WITH JobStepsHistData AS +( + SELECT job_id, step_id +,date_executed=msdb.dbo.agent_datetime(run_date, run_time) +,secs_duration=run_duration/10000*3600 + +run_duration%10000/100*60 + +run_duration%100 + FROM msdb.dbo.sysjobhistory + WHERE run_status = 1 -- Succeeded +) +,JobHistStats AS +( + SELECT job_id, step_id + ,AvgDuration = AVG(secs_duration*1.) + ,AvgPlus2StDev = AVG(secs_duration*1.) + 2*stdevp(secs_duration) + FROM JobStepsHistData + WHERE date_executed >= DATEADD(day, DATEDIFF(day,'19000101',@HistoryStartDate),'19000101') + AND date_executed < DATEADD(day, 1 + DATEDIFF(day,'19000101',@HistoryEndDate),'19000101') + GROUP BY job_id, step_id + HAVING COUNT(*) >= @MinHistExecutions + AND AVG(secs_duration*1.) >= @MinAvgSecsDuration +) +-- need to select from the CTE's, and join to msdb for final result +SELECT jd.job_id + ,j.name AS [JobName] + ,sjs.step_id + ,sjs.step_name + ,MAX(act.start_execution_date) AS [ExecutionDate] + ,AvgDuration AS [Historical Avg Duration (secs)] + ,AvgPlus2StDev AS [Min Threshhold (secs)] +FROM JobStepsHistData jd +JOIN JobHistStats jhs on jd.job_id = jhs.job_id AND jd.step_id = jhs.step_id +JOIN msdb..sysjobs j on jd.job_id = j.job_id +JOIN msdb..sysjobsteps sjs on jd.job_id = sjs.job_id AND jd.step_id = sjs.step_id +JOIN @currently_running_jobs crj ON crj.job_id = jd.job_id --see note [1] above +JOIN msdb..sysjobactivity AS act ON act.job_id = jd.job_id +AND act.stop_execution_date IS NULL +AND act.start_execution_date IS NOT NULL +WHERE DATEDIFF(SS, act.start_execution_date, GETDATE()) > AvgPlus2StDev +AND crj.job_state = 1 --see note [2] above +GROUP BY jd.job_id, j.name, sjs.step_id, sjs.step_name, AvgDuration, AvgPlus2StDev diff --git a/Scripts/FindTablesWithSimilarTableStructure.sql b/Scripts/FindTablesWithSimilarTableStructure.sql new file mode 100644 index 00000000..18a51da7 --- /dev/null +++ b/Scripts/FindTablesWithSimilarTableStructure.sql @@ -0,0 +1,62 @@ +/* +Author: Jana Sattainathan +Original link: https://sqljana.wordpress.com/2017/03/31/sql-server-find-tables-with-similar-table-structure +*/ + +WITH ColCountsByTable +AS +( + SELECT + c.TABLE_CATALOG, + c.TABLE_SCHEMA, + c.TABLE_NAME, + COUNT(1) AS Column_Count + FROM INFORMATION_SCHEMA.COLUMNS c + /* + --Plug in the schema and table name to get similar views/tables just for one or more tables + WHERE + c.TABLE_SCHEMA = 'TransactionPreProcessing' + AND c.TABLE_NAME IN ('PreStagingTransaction') + */ + GROUP BY + c.TABLE_CATALOG, + c.TABLE_SCHEMA, + c.TABLE_NAME +) +SELECT + 100 * COUNT(c2.COLUMN_NAME) /*Matching_Column_Count*/ / MIN(ColCountsByTable.Column_Count) /*Column_Count*/ AS Match_Percent, + c.TABLE_CATALOG, + c.TABLE_SCHEMA, + c.TABLE_NAME, + DENSE_RANK() OVER(ORDER BY c.TABLE_CATALOG, c.TABLE_SCHEMA, c.TABLE_NAME) Table_Rank, + MIN(ColCountsByTable.Column_Count) AS Column_Count, + c2.TABLE_CATALOG AS Matching_Catalog, + c2.TABLE_SCHEMA AS Matching_Schema, + c2.TABLE_NAME AS Matching_Table, + COUNT(c2.COLUMN_NAME) AS Matching_Column_Count +FROM INFORMATION_SCHEMA.TABLES t + INNER JOIN INFORMATION_SCHEMA.COLUMNS c + ON t.TABLE_CATALOG = c.TABLE_CATALOG + AND t.TABLE_SCHEMA = c.TABLE_SCHEMA + AND t.TABLE_NAME = c.TABLE_NAME + INNER JOIN ColCountsByTable + ON t.TABLE_CATALOG = ColCountsByTable.TABLE_CATALOG + AND t.TABLE_SCHEMA = ColCountsByTable.TABLE_SCHEMA + AND t.TABLE_NAME = ColCountsByTable.TABLE_NAME + LEFT OUTER JOIN INFORMATION_SCHEMA.COLUMNS c2 + ON t.TABLE_NAME != c2.TABLE_NAME + AND c.COLUMN_NAME = c2.COLUMN_NAME +GROUP BY + c.TABLE_CATALOG, + c.TABLE_SCHEMA, + c.TABLE_NAME, + c2.TABLE_CATALOG, + c2.TABLE_SCHEMA, + c2.TABLE_NAME +--Use the below HAVING clause if you want to restrict results to only matches above a certain percent +--HAVING +-- /*Match_Percent*/ +-- (100 * COUNT(c2.COLUMN_NAME) /*Matching_Column_Count*/) / MIN(ColCountsByTable.Column_Count) /*Column_Count*/ +-- >= 50 --Require atleast 50% of the columns to match +ORDER BY + Match_Percent DESC \ No newline at end of file diff --git a/Scripts/Find_Non_Sargable_Queries.sql b/Scripts/Find_Non_Sargable_Queries.sql new file mode 100644 index 00000000..e2c27986 --- /dev/null +++ b/Scripts/Find_Non_Sargable_Queries.sql @@ -0,0 +1,30 @@ +/* +Author: Bert Wagner +Source link: https://blog.bertwagner.com/how-to-search-and-destroy-non-sargable-queries-on-your-server-ff9f57c7268e +*/ + +SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; + +DECLARE @dbname SYSNAME; +SET @dbname = QUOTENAME(DB_NAME()); + +--WITH XMLNAMESPACES (DEFAULT 'http://schemas.microsoft.com/sqlserver/2004/07/showplan') + +SELECT + stmt.value('(@StatementText)[1]', 'varchar(max)') AS [Query], + query_plan AS [QueryPlan], + sc.value('(.//Identifier/ColumnReference/@Schema)[1]', 'varchar(128)') AS [Schema] + , sc.value('(.//Identifier/ColumnReference/@Table)[1]', 'varchar(128)') AS [Table] + , sc.value('(.//Identifier/ColumnReference/@Column)[1]', 'varchar(128)') AS [Column] + , CASE WHEN s.exist('.//TableScan') = 1 THEN 'TableScan' ELSE 'IndexScan' END AS [ScanType], + sc.value('(@ScalarString)[1]', 'varchar(128)') AS [ScalarString] +FROM + sys.dm_exec_cached_plans AS cp + CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp + CROSS APPLY query_plan.nodes('/ShowPlanXML/BatchSequence/Batch/Statements/StmtSimple') AS batch(stmt) + CROSS APPLY stmt.nodes('.//RelOp[TableScan or IndexScan]') AS scan(s) + CROSS APPLY s.nodes('.//ScalarOperator') AS scalar(sc) +WHERE + s.exist('.//ScalarOperator[@ScalarString]!=""') = 1 + AND sc.exist('.//Identifier/ColumnReference[@Database=sql:variable("@dbname")][@Schema!="[sys]"]') = 1 + AND sc.value('(@ScalarString)[1]', 'varchar(128)') IS NOT NULL; diff --git a/Scripts/Find_Object_Dependecy.sql b/Scripts/Find_Object_Dependecy.sql new file mode 100644 index 00000000..ac65c0f0 --- /dev/null +++ b/Scripts/Find_Object_Dependecy.sql @@ -0,0 +1,2558 @@ + /* +Author: Konstantin Taranov +Source: https://github.com/ktaranov/sqlserver-kit/blob/master/Scripts/Find_Object_Dependecy.sql +*/ +DECLARE @objectName SYSNAME = 'ObjectName'; +DECLARE @schemaName SYSNAME = 'SchemaName'; + +IF Object_id('tempdb..#tempdep', 'U') IS NOT NULL + DROP TABLE #tempdep; + +IF Object_id('tempdb..#t1', 'U') IS NOT NULL + DROP TABLE #t1; + +IF Object_id('tempdb..#t2', 'U') IS NOT NULL + DROP TABLE #t2; + +CREATE TABLE #tempdep + ( + objid INT NOT NULL + ,objname SYSNAME NOT NULL + ,objschema SYSNAME NULL + ,objdb SYSNAME NOT NULL + ,objtype SMALLINT NOT NULL + ); + +EXEC sp_executesql + N'INSERT INTO #tempdep + SELECT tbl.object_id AS [ID], tbl.name AS [Name], SCHEMA_NAME(tbl.schema_id) AS [Schema], db_name(), 3 + FROM sys.tables AS tbl + WHERE (tbl.name=@_msparam_0 and SCHEMA_NAME(tbl.schema_id)=@_msparam_1)', + N'@_msparam_0 nvarchar(4000),@_msparam_1 nvarchar(4000)', + @_msparam_0=@objectName, + @_msparam_1=@schemaName; + +DECLARE @find_referencing_objects INT; + +SET @find_referencing_objects = 1; + +-- parameters: +-- 1. create table #tempdep (objid int NOT NULL, objtype smallint NOT NULL) +-- contains source objects +-- 2. @find_referencing_objects defines ordering +-- 1 order for drop +-- 0 order for script +DECLARE @must_set_nocount_off BIT; + +SET @must_set_nocount_off = 0; + +IF @@OPTIONS & 512 = 0 + SET @must_set_nocount_off = 1; + +SET nocount ON; + +DECLARE @u INT; +DECLARE @udf INT; +DECLARE @v INT; +DECLARE @sp INT; +DECLARE @def INT; +DECLARE @rule INT; +DECLARE @tr INT; +DECLARE @uda INT; +DECLARE @uddt INT; +DECLARE @xml INT; +DECLARE @udt INT; +DECLARE @assm INT; +DECLARE @part_sch INT; +DECLARE @part_func INT; +DECLARE @synonym INT; +DECLARE @sequence INT; +DECLARE @udtt INT; +DECLARE @ddltr INT; +DECLARE @unknown INT; +DECLARE @pg INT; + +SET @u = 3; +SET @udf = 0; +SET @v = 2; +SET @sp = 4; +SET @def = 6; +SET @rule = 7; +SET @tr = 8; +SET @uda = 11; +SET @synonym = 12; +SET @sequence = 13; +-- above 100 -> not in sys.objects +SET @uddt = 101; +SET @xml = 102; +SET @udt = 103; +SET @assm = 1000; +SET @part_sch = 201; +SET @part_func = 202; +SET @udtt = 104; +SET @ddltr = 203; +SET @unknown = 1001; +SET @pg = 204; + +-- variables for referenced type obtained from sys.sql_expression_dependencies +DECLARE @obj INT; + +SET @obj = 20; + +DECLARE @type INT; + +SET @type = 21; + +-- variables for xml and part_func are already there +CREATE TABLE #t1 + ( + object_id INT NULL + ,object_name SYSNAME COLLATE database_default NULL + ,object_schema SYSNAME COLLATE database_default NULL + ,object_db SYSNAME NULL + ,object_svr SYSNAME NULL + ,object_type SMALLINT NOT NULL + ,relative_id INT NOT NULL + ,relative_name SYSNAME COLLATE database_default NOT NULL + ,relative_schema SYSNAME COLLATE database_default NULL + ,relative_db SYSNAME NULL + ,relative_svr SYSNAME NULL + ,relative_type SMALLINT NOT NULL + ,schema_bound BIT NOT NULL + ,rank SMALLINT NULL + ,degree INT NULL + ); + +-- we need to create another temporary table to store the dependencies from sys.sql_expression_dependencies till the updated values are inserted finally into #t1 +CREATE TABLE #t2 + ( + object_id INT NULL + ,object_name SYSNAME COLLATE database_default NULL + ,object_schema SYSNAME COLLATE database_default NULL + ,object_db SYSNAME NULL + ,object_svr SYSNAME NULL + ,object_type SMALLINT NOT NULL + ,relative_id INT NOT NULL + ,relative_name SYSNAME COLLATE database_default NOT NULL + ,relative_schema SYSNAME COLLATE database_default NULL + ,relative_db SYSNAME NULL + ,relative_svr SYSNAME NULL + ,relative_type SMALLINT NOT NULL + ,schema_bound BIT NOT NULL + ,rank SMALLINT NULL + ); + +-- This index will ensure that we have unique parent-child relationship +CREATE UNIQUE CLUSTERED INDEX i1 + ON #t1(object_name, object_schema, object_db, object_svr, object_type, relative_name, relative_schema, relative_type) + WITH ignore_dup_key; + +DECLARE @iter_no INT; +SET @iter_no = 1; + +DECLARE @rows INT; +SET @rows = 1; + +INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) +SELECT l.objid + ,l.objname + ,l.objschema + ,l.objdb + ,l.objtype + ,l.objid + ,l.objname + ,l.objschema + ,l.objdb + ,l.objtype + ,1 + ,@iter_no +FROM #tempdep l; + +-- change the object_id of table types to their user_defined_id +UPDATE #t1 +SET object_id = tt.user_type_id + ,relative_id = tt.user_type_id +FROM sys.table_types AS tt +WHERE tt.type_table_object_id = #t1.object_id + AND object_type = @udtt; + +WHILE @rows > 0 + BEGIN + SET @rows = 0 + + IF ( 1 = @find_referencing_objects ) + BEGIN + -- HARD DEPENDENCIES + -- these dependencies have to be in the same database only + -- tables that reference uddts or udts + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT tbl.object_id + ,tbl.name + ,Schema_name(tbl.schema_id) + ,t.object_db + ,@u + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.columns AS c + ON c.user_type_id = t.object_id + JOIN sys.tables AS tbl + ON tbl.object_id = c.object_id + WHERE @iter_no = t.rank + AND ( t.object_type = @uddt + OR t.object_type = @udt ) + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- udtts that reference uddts or udts + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT tt.user_type_id + ,tt.name + ,Schema_name(tt.schema_id) + ,t.object_db + ,@udtt + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.columns AS c + ON c.user_type_id = t.object_id + JOIN sys.table_types AS tt + ON tt.type_table_object_id = c.object_id + WHERE @iter_no = t.rank + AND ( t.object_type = @uddt + OR t.object_type = @udt ) + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- tables/views that reference triggers + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT o.object_id + ,o.name + ,Schema_name(o.schema_id) + ,t.object_db + ,@tr + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.objects AS o + ON o.parent_object_id = t.object_id + AND o.type = 'TR' + WHERE @iter_no = t.rank + AND ( t.object_type = @u + OR t.object_type = @v ) + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- tables that reference defaults (only default objects) + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT o.object_id + ,o.name + ,Schema_name(o.schema_id) + ,t.object_db + ,@u + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.columns AS clmns + ON clmns.default_object_id = t.object_id + JOIN sys.objects AS o + ON o.object_id = clmns.object_id + AND 0 = ISNULL(o.parent_object_id, 0) + WHERE @iter_no = t.rank + AND t.object_type = @def + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- types that reference defaults (only default objects) + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT tp.user_type_id + ,tp.name + ,Schema_name(tp.schema_id) + ,t.object_db + ,@uddt + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.types AS tp + ON tp.default_object_id = t.object_id + JOIN sys.objects AS o + ON o.object_id = t.object_id + AND 0 = ISNULL(o.parent_object_id, 0) + WHERE @iter_no = t.rank + AND t.object_type = @def + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- tables that reference rules + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT tbl.object_id + ,tbl.name + ,Schema_name(tbl.schema_id) + ,t.object_db + ,@u + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.columns AS clmns + ON clmns.rule_object_id = t.object_id + JOIN sys.tables AS tbl + ON tbl.object_id = clmns.object_id + WHERE @iter_no = t.rank + AND t.relative_type = @rule + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- types that reference rules + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT tp.user_type_id + ,tp.name + ,Schema_name(tp.schema_id) + ,t.object_db + ,@uddt + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.types AS tp + ON tp.rule_object_id = t.object_id + WHERE @iter_no = t.rank + AND t.object_type = @rule + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- tables that reference XmlSchemaCollections + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT tbl.object_id + ,tbl.name + ,Schema_name(tbl.schema_id) + ,t.object_db + ,@u + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.columns AS c + ON c.xml_collection_id = t.object_id + JOIN sys.tables AS tbl + ON tbl.object_id = c.object_id -- eliminate views + WHERE @iter_no = t.rank + AND t.object_type = @xml + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- table types that reference XmlSchemaCollections + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT tt.user_type_id + ,tt.name + ,Schema_name(tt.schema_id) + ,t.object_db + ,@udtt + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.columns AS c + ON c.xml_collection_id = t.object_id + JOIN sys.table_types AS tt + ON tt.type_table_object_id = c.object_id + WHERE @iter_no = t.rank + AND t.object_type = @xml + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- procedures that reference XmlSchemaCollections + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT o.object_id + ,o.name + ,Schema_name(o.schema_id) + ,t.object_db + ,( CASE + WHEN o.type IN ( 'P', 'RF', 'PC' ) THEN @sp + ELSE @udf + END ) + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.parameters AS c + ON c.xml_collection_id = t.object_id + JOIN sys.objects AS o + ON o.object_id = c.object_id + WHERE @iter_no = t.rank + AND t.object_type = @xml + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- udf, sp, uda, trigger all that reference assembly + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT o.object_id + ,o.name + ,Schema_name(o.schema_id) + ,t.object_db + ,( CASE o.type + WHEN 'AF' THEN @uda + WHEN 'PC' THEN @sp + WHEN 'FS' THEN @udf + WHEN 'FT' THEN @udf + WHEN 'TA' THEN @tr + ELSE @udf + END ) + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.assembly_modules AS am + ON ( ( am.assembly_id = t.object_id ) + AND ( am.assembly_id >= 65536 ) ) + JOIN sys.objects AS o + ON am.object_id = o.object_id + WHERE @iter_no = t.rank + AND t.object_type = @assm + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- udt that reference assembly + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT at.user_type_id + ,at.name + ,Schema_name(at.schema_id) + ,t.object_db + ,@udt + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.assembly_types AS at + ON ( ( at.assembly_id = t.object_id ) + AND ( at.is_user_defined = 1 ) ) + WHERE @iter_no = t.rank + AND t.object_type = @assm + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- assembly that reference assembly + INSERT #t1 + (object_id + ,object_name + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT asm.assembly_id + ,asm.name + ,t.object_db + ,@assm + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.assembly_references AS ar + ON ( ( ar.referenced_assembly_id = t.object_id ) + AND ( ar.referenced_assembly_id >= 65536 ) ) + JOIN sys.assemblies AS asm + ON asm.assembly_id = ar.assembly_id + WHERE @iter_no = t.rank + AND t.object_type = @assm + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- table references table + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT tbl.object_id + ,tbl.name + ,Schema_name(tbl.schema_id) + ,t.object_db + ,@u + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.foreign_keys AS fk + ON fk.referenced_object_id = t.object_id + JOIN sys.tables AS tbl + ON tbl.object_id = fk.parent_object_id + WHERE @iter_no = t.rank + AND t.object_type = @u + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- uda references types + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT o.object_id + ,o.name + ,Schema_name(o.schema_id) + ,t.object_db + ,@uda + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.parameters AS p + ON p.user_type_id = t.object_id + JOIN sys.objects AS o + ON o.object_id = p.object_id + AND o.type = 'AF' + WHERE @iter_no = t.rank + AND t.object_type IN ( @udt, @uddt, @udtt ) + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + -- table,view references partition scheme + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT o.object_id + ,o.name + ,Schema_name(o.schema_id) + ,t.object_db + ,( CASE o.type + WHEN 'V' THEN @v + ELSE @u + END ) + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.indexes AS idx + ON idx.data_space_id = t.object_id + JOIN sys.objects AS o + ON o.object_id = idx.object_id + WHERE @iter_no = t.rank + AND t.object_type = @part_sch + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- partition scheme references partition function + INSERT #t1 + (object_id + ,object_name + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT ps.data_space_id + ,ps.name + ,t.object_db + ,@part_sch + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.partition_schemes AS ps + ON ps.function_id = t.object_id + WHERE @iter_no = t.rank + AND t.object_type = @part_func + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- plan guide references sp, udf, triggers + INSERT #t1 + (object_id + ,object_name + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT pg.plan_guide_id + ,pg.name + ,t.object_db + ,@pg + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.plan_guides AS pg + ON pg.scope_object_id = t.object_id + WHERE @iter_no = t.rank + AND t.object_type IN ( @sp, @udf, @tr ) + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- synonym refrences object + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT s.object_id + ,s.name + ,Schema_name(s.schema_id) + ,t.object_db + ,@synonym + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,0 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.synonyms AS s + ON Object_id(s.base_object_name) = t.object_id + WHERE @iter_no = t.rank + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- sequences that reference uddts + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT s.object_id + ,s.name + ,Schema_name(s.schema_id) + ,t.object_db + ,@sequence + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,0 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.sequences AS s + ON s.user_type_id = t.object_id + WHERE @iter_no = t.rank + AND ( t.object_type = @uddt ) + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- SOFT DEPENDENCIES + DECLARE name_cursor CURSOR FOR + SELECT DISTINCT t.object_id + ,t.object_name + ,t.object_schema + ,t.object_type + FROM #t1 AS t + WHERE @iter_no = t.rank + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ) + AND t.object_type NOT IN ( @part_sch, @assm, @tr, @ddltr ); + + OPEN name_cursor; + + DECLARE @objid INT; + DECLARE @objname SYSNAME; + DECLARE @objschema SYSNAME; + DECLARE @objtype SMALLINT; + DECLARE @fullname SYSNAME; + DECLARE @objecttype SYSNAME; + + FETCH next FROM name_cursor INTO @objid, @objname, @objschema, @objtype; + + WHILE ( @@FETCH_STATUS <> -1 ) + BEGIN + SET @fullname = CASE + WHEN @objschema IS NULL THEN + QUOTENAME(@objname) + ELSE QUOTENAME(@objschema) + '.' + QUOTENAME(@objname) + END; + SET @objecttype = CASE + WHEN @objtype IN ( @uddt, @udt, @udtt ) + THEN + 'TYPE' + WHEN @objtype = @xml THEN + 'XML_SCHEMA_COLLECTION' + WHEN @objtype = @part_func THEN + 'PARTITION_FUNCTION' + ELSE 'OBJECT' + END; + + INSERT #t2 + (object_type + ,object_id + ,object_name + ,object_schema + ,object_db + ,object_svr + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT CASE dep.referencing_class + WHEN 1 THEN (SELECT CASE + WHEN obj.type = 'U' THEN @u + WHEN obj.type = 'V' THEN @v + WHEN obj.type = 'TR' THEN @tr + WHEN obj.type IN ( + 'P', 'RF', 'PC' ) + THEN + @sp + WHEN obj.type IN ( 'AF' ) THEN + @uda + WHEN obj.type IN ( + 'TF', 'FN', 'IF', + 'FS', + 'FT' ) + THEN + @udf + WHEN obj.type = 'D' THEN @def + WHEN obj.type = 'SN' THEN + @synonym + WHEN obj.type = 'SO' THEN + @sequence + ELSE @obj + END + FROM sys.objects AS obj + WHERE + obj.object_id = dep.referencing_id) + WHEN 6 THEN (SELECT CASE + WHEN ( tp.is_assembly_type = 1 + ) + THEN + @udt + WHEN ( tp.is_table_type = 1 ) + THEN + @udtt + ELSE @uddt + END + FROM sys.types AS tp + WHERE + tp.user_type_id = dep.referencing_id) + WHEN 7 THEN @u + WHEN 9 THEN @u + WHEN 10 THEN @xml + WHEN 12 THEN @ddltr + WHEN 21 THEN @part_func + END + ,dep.referencing_id + ,dep.referencing_entity_name + ,dep.referencing_schema_name + ,DB_NAME() + ,NULL + ,@objid + ,@objname + ,@objschema + ,DB_NAME() + ,@objtype + ,0 + ,@iter_no + 1 + FROM sys.dm_sql_referencing_entities(@fullname, @objecttype) AS dep; + + FETCH NEXT FROM name_cursor INTO @objid, @objname, @objschema, @objtype; + END + + CLOSE name_cursor; + DEALLOCATE name_cursor; + + UPDATE #t2 + SET object_id = obj.object_id + ,object_name = obj.name + ,object_schema = Schema_name(obj.schema_id) + ,object_type = CASE + WHEN obj.type = 'U' THEN @u + WHEN obj.type = 'V' THEN @v + END + FROM sys.objects AS o + JOIN sys.objects AS obj + ON obj.object_id = o.parent_object_id + WHERE o.object_id = #t2.object_id + AND ( #t2.object_type = @obj + OR o.parent_object_id != 0 ) + AND #t2.rank = @iter_no + 1; + + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_svr + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_svr + ,relative_type + ,schema_bound + ,rank) + SELECT object_id + ,object_name + ,object_schema + ,object_db + ,object_svr + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_svr + ,relative_type + ,schema_bound + ,rank + FROM #t2 + WHERE @iter_no + 1 = rank + AND #t2.object_id != #t2.relative_id; + + SET @rows = @rows + @@rowcount; + END + ELSE + BEGIN + -- SOFT DEPENDENCIES + -- insert all values from sys.sql_expression_dependencies for the corresponding object + -- first insert them in #t2, update them and THEN finally insert them in #t1 + INSERT #t2 + (object_type + ,object_name + ,object_schema + ,object_db + ,object_svr + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT CASE dep.referenced_class + WHEN 1 THEN @obj + WHEN 6 THEN @type + WHEN 7 THEN @u + WHEN 9 THEN @u + WHEN 10 THEN @xml + WHEN 21 THEN @part_func + END + ,dep.referenced_entity_name + ,dep.referenced_schema_name + ,dep.referenced_database_name + ,dep.referenced_server_name + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,dep.is_schema_bound_reference + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.sql_expression_dependencies AS dep + ON dep.referencing_id = t.object_id + WHERE @iter_no = t.rank + AND t.object_svr IS NULL + AND t.object_db = DB_NAME(); + + -- insert all the dependency values in case of a table that references a check + INSERT #t2 + (object_type + ,object_name + ,object_schema + ,object_db + ,object_svr + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT CASE dep.referenced_class + WHEN 1 THEN @obj + WHEN 6 THEN @type + WHEN 7 THEN @u + WHEN 9 THEN @u + WHEN 10 THEN @xml + WHEN 21 THEN @part_func + END + ,dep.referenced_entity_name + ,dep.referenced_schema_name + ,dep.referenced_database_name + ,dep.referenced_server_name + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,dep.is_schema_bound_reference + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.sql_expression_dependencies AS d + ON d.referenced_id = t.object_id + JOIN sys.objects AS o + ON o.object_id = d.referencing_id + AND o.type = 'C' + JOIN sys.sql_expression_dependencies AS dep + ON dep.referencing_id = d.referencing_id + AND dep.referenced_id != t.object_id + WHERE @iter_no = t.rank + AND t.object_svr IS NULL + AND t.object_db = DB_NAME() + AND t.object_type = @u; + + -- insert all the dependency values in case of an object that belongs to another object whose dependencies are being found + INSERT #t2 + (object_type + ,object_name + ,object_schema + ,object_db + ,object_svr + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT CASE dep.referenced_class + WHEN 1 THEN @obj + WHEN 6 THEN @type + WHEN 7 THEN @u + WHEN 9 THEN @u + WHEN 10 THEN @xml + WHEN 21 THEN @part_func + END + ,dep.referenced_entity_name + ,dep.referenced_schema_name + ,dep.referenced_database_name + ,dep.referenced_server_name + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,dep.is_schema_bound_reference + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.objects AS o + ON o.parent_object_id = t.object_id + JOIN sys.sql_expression_dependencies AS dep + ON dep.referencing_id = o.object_id + WHERE @iter_no = t.rank + AND t.object_svr IS NULL + AND t.object_db = DB_NAME(); + + -- queries for objects with object_id null and object_svr null - resolve them + -- we will build the query to resolve the objects + -- increase @rows as we bind the objects + DECLARE db_cursor CURSOR FOR + SELECT DISTINCT ISNULL(object_db, DB_NAME()) + FROM #t2 AS t + WHERE t.rank = ( @iter_no + 1 ) + AND t.object_id IS NULL + AND t.object_svr IS NULL; + + OPEN db_cursor; + + DECLARE @dbname SYSNAME; + DECLARE @quote_quoted_dbname SYSNAME; + DECLARE @bracket_quoted_dbname SYSNAME; + + FETCH next FROM db_cursor INTO @dbname; + + WHILE ( @@FETCH_STATUS <> -1 ) + BEGIN + IF ( DB_ID(@dbname) IS NULL ) + BEGIN + FETCH next FROM db_cursor INTO @dbname; + + CONTINUE; + END + + SET @quote_quoted_dbname = QUOTENAME(@dbname, ''''); + SET @bracket_quoted_dbname = QUOTENAME(@dbname, ']'); + + DECLARE @query NVARCHAR(max); + + -- WHEN schema is not null + -- @obj + SET @query = 'UPDATE #t2 set object_db = N' + + @quote_quoted_dbname + + ', object_id = obj.object_id, object_type = case WHEN obj.type = ''U'' THEN ' + + CAST(@u AS NVARCHAR(8)) + + ' WHEN obj.type = ''V'' THEN ' + + CAST(@v AS NVARCHAR(8)) + + ' WHEN obj.type = ''TR'' THEN ' + + CAST(@tr AS NVARCHAR(8)) + + ' WHEN obj.type in ( ''P'', ''RF'', ''PC'' ) THEN ' + + CAST(@sp AS NVARCHAR(8)) + + ' WHEN obj.type in ( ''AF'' ) THEN ' + + CAST(@uda AS NVARCHAR(8)) + + ' WHEN obj.type in ( ''TF'', ''FN'', ''IF'', ''FS'', ''FT'' ) THEN ' + + CAST(@udf AS NVARCHAR(8)) + + ' WHEN obj.type = ''D'' THEN ' + + CAST(@def AS NVARCHAR(8)) + + ' WHEN obj.type = ''SN'' THEN ' + + CAST(@synonym AS NVARCHAR(8)) + + ' WHEN obj.type = ''SO'' THEN ' + + CAST(@sequence AS NVARCHAR(8)) + ' ELSE ' + + CAST(@unknown AS NVARCHAR(8)) + + ' END FROM ' + + @bracket_quoted_dbname + + '.sys.objects as obj JOIN ' + + @bracket_quoted_dbname + + '.sys.schemas as sch on sch.schema_id = obj.schema_id + WHERE obj.name = #t2.object_name collate database_default AND + sch.name = #t2.object_schema collate database_default AND + #t2.object_type = ' + + CAST(@obj AS NVARCHAR(8)) + + ' AND #t2.object_schema IS NOT NULL AND (#t2.object_db IS NULL or #t2.object_db = N' + + @quote_quoted_dbname + + ') AND #t2.rank = (' + + CAST(@iter_no AS NVARCHAR(8)) + + '+1) AND #t2.object_id IS NULL and #t2.object_svr IS NULL;' + + EXEC sp_executesql @query; + + -- @type + SET @query = 'update #t2 set object_db = N' + + @quote_quoted_dbname + + ', object_id = t.user_type_id, object_type = case WHEN t.is_assembly_type = 1 THEN ' + + CAST(@udt AS NVARCHAR(8)) + + ' WHEN t.is_table_type = 1 THEN ' + + CAST(@udtt AS NVARCHAR(8)) + ' ELSE ' + + CAST(@uddt AS NVARCHAR(8)) + + ' END FROM ' + + @bracket_quoted_dbname + + '.sys.types AS t JOIN ' + + @bracket_quoted_dbname + + '.sys.schemas as sch on sch.schema_id = t.schema_id + WHERE t.name = #t2.object_name collate database_default AND + sch.name = #t2.object_schema collate database_default AND + #t2.object_type = ' + + CAST(@type AS NVARCHAR(8)) + + ' and #t2.object_schema IS NOT NULL AND (#t2.object_db IS NULL or #t2.object_db = N' + + @quote_quoted_dbname + + ') AND #t2.rank = (' + + CAST(@iter_no AS NVARCHAR(8)) + + '+1) AND #t2.object_id IS NULL and #t2.object_svr IS NULL;'; + + EXEC sp_executesql @query; + + -- @xml + SET @query = 'UPDATE #t2 set object_db = N' + + @quote_quoted_dbname + + ', object_id = x.xml_collection_id FROM ' + + @bracket_quoted_dbname + + '.sys.xml_schema_collections AS x JOIN ' + + @bracket_quoted_dbname + + '.sys.schemas as sch on sch.schema_id = x.schema_id + WHERE x.name = #t2.object_name collate database_default AND + sch.name = #t2.object_schema collate database_default AND + #t2.object_type = ' + + CAST(@xml AS NVARCHAR(8)) + + ' AND #t2.object_schema IS NOT NULL AND (#t2.object_db IS NULL OR #t2.object_db = N' + + @quote_quoted_dbname + + ') AND #t2.rank = (' + + CAST(@iter_no AS NVARCHAR(8)) + + '+1) AND #t2.object_id IS NULL and #t2.object_svr IS NULL;'; + + EXEC sp_executesql @query; + + -- @part_func - schema is always null + -- @schema is null + -- consider schema as 'dbo' + -- @obj + SET @query = 'UPDATE #t2 set object_db = N' + + @quote_quoted_dbname + + ', object_id = obj.object_id, object_schema = SCHEMA_NAME(obj.schema_id), object_type = CASE WHEN obj.type = ''U'' THEN ' + + CAST(@u AS NVARCHAR(8)) + + ' WHEN obj.type = ''V'' THEN ' + + CAST(@v AS NVARCHAR(8)) + + ' WHEN obj.type = ''TR'' THEN ' + + CAST(@tr AS NVARCHAR(8)) + + ' WHEN obj.type in ( ''P'', ''RF'', ''PC'' ) THEN ' + + CAST(@sp AS NVARCHAR(8)) + + ' WHEN obj.type in ( ''AF'' ) THEN ' + + CAST(@uda AS NVARCHAR(8)) + + ' WHEN obj.type in ( ''TF'', ''FN'', ''IF'', ''FS'', ''FT'' ) THEN ' + + CAST(@udf AS NVARCHAR(8)) + + ' WHEN obj.type = ''D'' THEN ' + + CAST(@def AS NVARCHAR(8)) + + ' WHEN obj.type = ''SN'' THEN ' + + CAST(@synonym AS NVARCHAR(8)) + + ' WHEN obj.type = ''SO'' THEN ' + + CAST(@sequence AS NVARCHAR(8)) + ' ELSE ' + + CAST(@unknown AS NVARCHAR(8)) + + ' END FROM ' + + @bracket_quoted_dbname + + '.sys.objects as obj + WHERE obj.name = #t2.object_name collate database_default AND + SCHEMA_NAME(obj.schema_id) = ''dbo'' AND + #t2.object_type = ' + + CAST(@obj AS NVARCHAR(8)) + + ' AND #t2.object_schema IS NULL AND (#t2.object_db IS NULL OR #t2.object_db = N' + + @quote_quoted_dbname + + ') AND #t2.rank = (' + + CAST(@iter_no AS NVARCHAR(8)) + + '+1) AND #t2.object_id IS NULL and #t2.object_svr IS NULL;'; + + EXEC sp_executesql @query; + + -- @type + SET @query = 'update #t2 set object_db = N' + + @quote_quoted_dbname + + ', object_id = t.user_type_id, object_schema = SCHEMA_NAME(t.schema_id), object_type = case WHEN t.is_assembly_type = 1 THEN ' + + CAST(@udt AS NVARCHAR(8)) + + ' WHEN t.is_table_type = 1 THEN ' + + CAST(@udtt AS NVARCHAR(8)) + ' else ' + + CAST(@uddt AS NVARCHAR(8)) + + ' end from ' + + @bracket_quoted_dbname + + '.sys.types AS t + where t.name = #t2.object_name collate database_default AND + SCHEMA_NAME(t.schema_id) = ''dbo'' AND + #t2.object_type = ' + + CAST(@type AS NVARCHAR(8)) + + ' and #t2.object_schema IS NULL AND (#t2.object_db IS NULL OR #t2.object_db = N' + + @quote_quoted_dbname + + ') AND #t2.rank = (' + + CAST(@iter_no AS NVARCHAR(8)) + + '+1) AND #t2.object_id IS NULL AND #t2.object_svr IS NULL;'; + + EXEC sp_executesql @query; + + -- @xml + SET @query = 'update #t2 set object_db = N' + + @quote_quoted_dbname + + ', object_id = x.xml_collection_id, object_schema = SCHEMA_NAME(x.schema_id) FROM ' + + @bracket_quoted_dbname + + '.sys.xml_schema_collections as x + WHERE x.name = #t2.object_name collate database_default AND + SCHEMA_NAME(x.schema_id) = ''dbo'' AND + #t2.object_type = ' + + CAST(@xml AS NVARCHAR(8)) + + ' AND #t2.object_schema IS NULL AND (#t2.object_db IS NULL OR #t2.object_db = N' + + @quote_quoted_dbname + + ') and #t2.rank = (' + + CAST(@iter_no AS NVARCHAR(8)) + + '+1) and #t2.object_id IS NULL and #t2.object_svr IS NULL;'; + + EXEC sp_executesql @query; + + -- consider schema as t.relative_schema + -- the parent object will have the default schema of user in case of dynamic schema binding + -- @obj + SET @query = 'UPDATE #t2 set object_db = N' + + @quote_quoted_dbname + + ', object_id = obj.object_id, object_schema = SCHEMA_NAME(obj.schema_id), object_type = CASE WHEN obj.type = ''U'' THEN ' + + CAST(@u AS NVARCHAR(8)) + + ' WHEN obj.type = ''V'' THEN ' + + CAST(@v AS NVARCHAR(8)) + + ' WHEN obj.type = ''TR'' THEN ' + + CAST(@tr AS NVARCHAR(8)) + + ' WHEN obj.type in ( ''P'', ''RF'', ''PC'' ) THEN ' + + CAST(@sp AS NVARCHAR(8)) + + ' WHEN obj.type in ( ''AF'' ) THEN ' + + CAST(@uda AS NVARCHAR(8)) + + ' WHEN obj.type in ( ''TF'', ''FN'', ''IF'', ''FS'', ''FT'' ) THEN ' + + CAST(@udf AS NVARCHAR(8)) + + ' WHEN obj.type = ''D'' THEN ' + + CAST(@def AS NVARCHAR(8)) + + ' WHEN obj.type = ''SN'' THEN ' + + CAST(@synonym AS NVARCHAR(8)) + + ' WHEN obj.type = ''SO'' THEN ' + + CAST(@sequence AS NVARCHAR(8)) + ' else ' + + CAST(@unknown AS NVARCHAR(8)) + + ' end from ' + + @bracket_quoted_dbname + + '.sys.objects as obj JOIN ' + + @bracket_quoted_dbname + + '.sys.schemas as sch on sch.schema_id = obj.schema_id + WHERE obj.name = #t2.object_name collate database_default AND + sch.name = #t2.relative_schema collate database_default AND + #t2.object_type = ' + + CAST(@obj AS NVARCHAR(8)) + + ' AND #t2.object_schema IS NULL AND (#t2.object_db IS NULL or #t2.object_db = N' + + @quote_quoted_dbname + + ') AND #t2.rank = (' + + CAST(@iter_no AS NVARCHAR(8)) + + '+1) AND #t2.object_id IS NULL AND #t2.object_svr IS NULL;'; + + EXEC sp_executesql @query; + + -- @type + SET @query = 'UPDATE #t2 set object_db = N' + + @quote_quoted_dbname + + ', object_id = t.user_type_id, object_schema = SCHEMA_NAME(t.schema_id), object_type = case WHEN t.is_assembly_type = 1 THEN ' + + CAST(@udt AS NVARCHAR(8)) + + ' WHEN t.is_table_type = 1 THEN ' + + CAST(@udtt AS NVARCHAR(8)) + ' else ' + + CAST(@uddt AS NVARCHAR(8)) + + ' END FROM ' + + @bracket_quoted_dbname + + '.sys.types as t JOIN ' + + @bracket_quoted_dbname + + '.sys.schemas as sch on sch.schema_id = t.schema_id + WHERE t.name = #t2.object_name collate database_default AND + sch.name = #t2.relative_schema collate database_default AND + #t2.object_type = ' + + CAST(@type AS NVARCHAR(8)) + + ' and #t2.object_schema IS NULL AND (#t2.object_db IS NULL or #t2.object_db = N' + + @quote_quoted_dbname + + ') AND #t2.rank = (' + + CAST(@iter_no AS NVARCHAR(8)) + + '+1) AND #t2.object_id IS NULL AND #t2.object_svr IS NULL;' + + EXEC sp_executesql @query; + + -- @xml + SET @query = 'UPDATE #t2 set object_db = N' + + @quote_quoted_dbname + + ', object_id = x.xml_collection_id, object_schema = SCHEMA_NAME(x.schema_id) FROM ' + + @bracket_quoted_dbname + + '.sys.xml_schema_collections as x JOIN ' + + @bracket_quoted_dbname + + '.sys.schemas as sch on sch.schema_id = x.schema_id + WHERE x.name = #t2.object_name collate database_default AND + sch.name = #t2.relative_schema collate database_default AND + #t2.object_type = ' + + CAST(@xml AS NVARCHAR(8)) + + ' AND #t2.object_schema IS NULL AND (#t2.object_db IS NULL or #t2.object_db = N' + + @quote_quoted_dbname + + ') AND #t2.rank = (' + + CAST(@iter_no AS NVARCHAR(8)) + + '+1) and #t2.object_id IS NULL AND #t2.object_svr IS NULL;'; + + EXEC sp_executesql @query; + + -- @part_func always have schema as null + SET @query = 'update #t2 set object_db = N' + + @quote_quoted_dbname + + ', object_id = p.function_id FROM ' + + @bracket_quoted_dbname + + '.sys.partition_functions as p + WHERE p.name = #t2.object_name collate database_default AND + #t2.object_type = ' + + CAST(@part_func AS NVARCHAR(8)) + + ' and (#t2.object_db IS NULL or #t2.object_db = N' + + @quote_quoted_dbname + + ') and #t2.rank = (' + + CAST(@iter_no AS NVARCHAR(8)) + + '+1) AND #t2.object_id IS NULL and #t2.object_svr IS NULL'; + + EXEC sp_executesql @query; + + -- update the shared object if any (schema is not null) + UPDATE #t2 + SET object_db = 'master' + ,object_id = o.object_id + ,object_type = @sp + FROM master.sys.objects AS o + JOIN master.sys.schemas AS sch + ON sch.schema_id = o.schema_id + WHERE o.name = #t2.object_name COLLATE database_default + AND sch.name = #t2.object_schema COLLATE database_default + AND o.type IN ( 'P', 'RF', 'PC' ) + AND #t2.object_id IS NULL + AND #t2.object_name LIKE 'sp/_%' ESCAPE '/' + AND #t2.object_db IS NULL + AND #t2.object_svr IS NULL; + + -- update the shared object if any (schema is null) + UPDATE #t2 + SET object_db = 'master' + ,object_id = o.object_id + ,object_schema = Schema_name(o.schema_id) + ,object_type = @sp + FROM master.sys.objects AS o + WHERE o.name = #t2.object_name COLLATE database_default + AND Schema_name(o.schema_id) = 'dbo' COLLATE database_default + AND o.type IN ( 'P', 'RF', 'PC' ) + AND #t2.object_schema IS NULL + AND #t2.object_id IS NULL + AND #t2.object_name LIKE 'sp/_%' ESCAPE '/' + AND #t2.object_db IS NULL + AND #t2.object_svr IS NULL; + + FETCH next FROM db_cursor INTO @dbname; + END; + + CLOSE db_cursor; + DEALLOCATE db_cursor; + + UPDATE #t2 + SET object_type = @unknown + WHERE object_id IS NULL; + + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_svr + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_svr + ,relative_type + ,schema_bound + ,rank) + SELECT object_id + ,object_name + ,object_schema + ,object_db + ,object_svr + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_svr + ,relative_type + ,schema_bound + ,rank + FROM #t2 + WHERE @iter_no + 1 = rank; + + SET @rows = @rows + @@rowcount; + + -- HARD DEPENDENCIES + -- uddt or udt referenced by table + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT tp.user_type_id + ,tp.name + ,Schema_name(tp.schema_id) + ,t.object_db + ,CASE tp.is_assembly_type + WHEN 1 THEN @udt + ELSE @uddt + END + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.columns AS col + ON col.object_id = t.object_id + JOIN sys.types AS tp + ON tp.user_type_id = col.user_type_id + AND tp.schema_id != 4 + WHERE @iter_no = t.rank + AND t.object_type = @u + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- uddt or udt referenced by table type + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT tp.user_type_id + ,tp.name + ,Schema_name(tp.schema_id) + ,t.object_db + ,CASE tp.is_assembly_type + WHEN 1 THEN @udt + ELSE @uddt + END + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.table_types AS tt + ON tt.user_type_id = t.object_id + JOIN sys.columns AS col + ON col.object_id = tt.type_table_object_id + JOIN sys.types AS tp + ON tp.user_type_id = col.user_type_id + AND tp.schema_id != 4 + WHERE @iter_no = t.rank + AND t.object_type = @udtt + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- table or view referenced by trigger + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT o.object_id + ,o.name + ,Schema_name(o.schema_id) + ,t.object_db + ,CASE o.type + WHEN 'V' THEN @v + ELSE @u + END + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.triggers AS tr + ON tr.object_id = t.object_id + JOIN sys.objects AS o + ON o.object_id = tr.parent_id + WHERE @iter_no = t.rank + AND t.object_type = @tr + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- defaults (only default objects) referenced by tables + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT o.object_id + ,o.name + ,Schema_name(o.schema_id) + ,t.object_db + ,@def + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.columns AS clmns + ON clmns.object_id = t.object_id + JOIN sys.objects AS o + ON o.object_id = clmns.default_object_id + AND 0 = ISNULL(o.parent_object_id, 0) + WHERE @iter_no = t.rank + AND t.object_type = @u + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- defaults (only default objects) referenced by types + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT o.object_id + ,o.name + ,Schema_name(o.schema_id) + ,t.object_db + ,@def + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.types AS tp + ON tp.user_type_id = t.object_id + JOIN sys.objects AS o + ON o.object_id = tp.default_object_id + AND 0 = ISNULL(o.parent_object_id, 0) + WHERE @iter_no = t.rank + AND t.object_type = @uddt + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- rules referenced by tables + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT o.object_id + ,o.name + ,Schema_name(o.schema_id) + ,t.object_db + ,@rule + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.columns AS clmns + ON clmns.object_id = t.object_id + JOIN sys.objects AS o + ON o.object_id = clmns.rule_object_id + AND 0 = ISNULL(o.parent_object_id, 0) + WHERE @iter_no = t.rank + AND t.relative_type = @u + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- rules referenced by types + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT o.object_id + ,o.name + ,Schema_name(o.schema_id) + ,t.object_db + ,@rule + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.types AS tp + ON tp.user_type_id = t.object_id + JOIN sys.objects AS o + ON o.object_id = tp.rule_object_id + AND 0 = ISNULL(o.parent_object_id, 0) + WHERE @iter_no = t.rank + AND t.relative_type = @uddt + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- XmlSchemaCollections referenced by tables + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT x.xml_collection_id + ,x.name + ,Schema_name(x.schema_id) + ,t.object_db + ,@xml + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.columns AS c + ON c.object_id = t.object_id + JOIN sys.xml_schema_collections AS x + ON x.xml_collection_id = c.xml_collection_id + AND x.schema_id != 4 + WHERE @iter_no = t.rank + AND t.object_type = @u + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- XmlSchemaCollections referenced by tabletypes + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT x.xml_collection_id + ,x.name + ,Schema_name(x.schema_id) + ,t.object_db + ,@xml + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.table_types AS tt + ON tt.user_type_id = t.object_id + JOIN sys.columns AS c + ON c.object_id = tt.type_table_object_id + JOIN sys.xml_schema_collections AS x + ON x.xml_collection_id = c.xml_collection_id + AND x.schema_id != 4 + WHERE @iter_no = t.rank + AND t.object_type = @udtt + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- XmlSchemaCollections referenced by procedures + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT x.xml_collection_id + ,x.name + ,Schema_name(x.schema_id) + ,t.object_db + ,@xml + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.parameters AS c + ON c.object_id = t.object_id + JOIN sys.xml_schema_collections AS x + ON x.xml_collection_id = c.xml_collection_id + AND x.schema_id != 4 + WHERE @iter_no = t.rank + AND t.object_type IN ( @sp, @udf ) + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- table referenced by table + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT tbl.object_id + ,tbl.name + ,Schema_name(tbl.schema_id) + ,t.object_db + ,@u + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.foreign_keys AS fk + ON fk.parent_object_id = t.object_id + JOIN sys.tables AS tbl + ON tbl.object_id = fk.referenced_object_id + WHERE @iter_no = t.rank + AND t.object_type = @u + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- uddts referenced by uda + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT tp.user_type_id + ,tp.name + ,Schema_name(tp.schema_id) + ,t.object_db + ,CASE + WHEN tp.is_table_type = 1 THEN @udtt + WHEN tp.is_assembly_type = 1 THEN @udt + ELSE @uddt + END + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.parameters AS p + ON p.object_id = t.object_id + JOIN sys.types AS tp + ON tp.user_type_id = p.user_type_id + WHERE @iter_no = t.rank + AND t.object_type = @uda + AND t.object_type = @uda + AND tp.user_type_id > 256; + + SET @rows = @rows + @@rowcount; + + -- assembly referenced by assembly + INSERT #t1 + (object_id + ,object_name + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT asm.assembly_id + ,asm.name + ,t.object_db + ,@assm + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.assembly_references AS ar + ON ( ( ar.assembly_id = t.object_id ) + AND ( ar.referenced_assembly_id >= 65536 ) ) + JOIN sys.assemblies AS asm + ON asm.assembly_id = ar.referenced_assembly_id + WHERE @iter_no = t.rank + AND t.object_type = @assm + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- assembly referenced by udt + INSERT #t1 + (object_id + ,object_name + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT asm.assembly_id + ,asm.name + ,t.object_db + ,@assm + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.assembly_types AS at + ON ( ( at.user_type_id = t.object_id ) + AND ( at.is_user_defined = 1 ) ) + JOIN sys.assemblies AS asm + ON asm.assembly_id = at.assembly_id + WHERE @iter_no = t.rank + AND t.object_type = @udt + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- assembly referenced by udf, sp, uda, trigger + INSERT #t1 + (object_id + ,object_name + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT asm.assembly_id + ,asm.name + ,t.object_db + ,@assm + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.assembly_modules AS am + ON ( ( am.object_id = t.object_id ) + AND ( am.assembly_id >= 65536 ) ) + JOIN sys.assemblies AS asm + ON asm.assembly_id = am.assembly_id + WHERE @iter_no = t.rank + AND t.object_type IN ( @udf, @sp, @uda, @tr ) + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- Partition Schemes referenced by tables/views + INSERT #t1 + (object_id + ,object_name + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT ps.data_space_id + ,ps.name + ,t.object_db + ,@part_sch + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.indexes AS idx + ON idx.object_id = t.object_id + JOIN sys.partition_schemes AS ps + ON ps.data_space_id = idx.data_space_id + WHERE @iter_no = t.rank + AND t.object_type IN ( @u, @v ) + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- Partition Function referenced by Partition Schemes + INSERT #t1 + (object_id + ,object_name + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT pf.function_id + ,pf.name + ,t.object_db + ,@part_func + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.partition_schemes AS ps + ON ps.data_space_id = t.object_id + JOIN sys.partition_functions AS pf + ON pf.function_id = ps.function_id + WHERE @iter_no = t.rank + AND t.object_type = @part_sch + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- sp, udf, triggers referenced by plan guide + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT o.object_id + ,o.name + ,Schema_name(o.schema_id) + ,t.object_db + ,( CASE o.type + WHEN 'P' THEN @sp + WHEN 'TR' THEN @tr + ELSE @udf + END ) + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.plan_guides AS pg + ON pg.plan_guide_id = t.object_id + JOIN sys.objects AS o + ON o.object_id = pg.scope_object_id + WHERE @iter_no = t.rank + AND t.object_type = @pg + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- objects referenced by synonym + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT o.object_id + ,o.name + ,Schema_name(o.schema_id) + ,t.object_db + ,( CASE + WHEN o.type = 'U' THEN @u + WHEN o.type = 'V' THEN @v + WHEN o.type IN ( 'P', 'RF', 'PC' ) THEN @sp + WHEN o.type = 'AF' THEN @uda + ELSE @udf + END ) + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,0 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.synonyms AS s + ON s.object_id = t.object_id + JOIN sys.objects AS o + ON o.object_id = Object_id(s.base_object_name) + AND o.type IN ( 'U', 'V', 'P', 'RF', 'PC', 'AF', 'TF', 'FN', 'IF', 'FS', 'FT' ) + WHERE @iter_no = t.rank + AND t.object_type = @synonym + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; + + -- uddt referenced by sequence. Used to find UDDT that is in sequence dependencies. + INSERT #t1 + (object_id + ,object_name + ,object_schema + ,object_db + ,object_type + ,relative_id + ,relative_name + ,relative_schema + ,relative_db + ,relative_type + ,schema_bound + ,rank) + SELECT tp.user_type_id + ,tp.name + ,Schema_name(tp.schema_id) + ,t.object_db + ,CASE tp.is_assembly_type + WHEN 1 THEN @udt + ELSE @uddt + END + ,t.object_id + ,t.object_name + ,t.object_schema + ,t.object_db + ,t.object_type + ,1 + ,@iter_no + 1 + FROM #t1 AS t + JOIN sys.sequences AS s + ON s.object_id = t.object_id + JOIN sys.types AS tp + ON tp.user_type_id = s.user_type_id + AND tp.schema_id != 4 + WHERE @iter_no = t.rank + AND t.object_type = @sequence + AND ( t.object_svr IS NULL + AND t.object_db = DB_NAME() ); + + SET @rows = @rows + @@rowcount; +END + + SET @iter_no = @iter_no + 1; +END + +UPDATE #t1 +SET rank = 0; + +-- computing the degree of the nodes +UPDATE #t1 +SET degree = (SELECT Count(*) + FROM #t1 t + WHERE t.relative_id = #t1.object_id + AND t.object_id != t.relative_id); + +-- perform the topological sorting +SET @iter_no = 1; + +WHILE 1 = 1 + BEGIN + UPDATE #t1 + SET rank = @iter_no + WHERE degree = 0; + + -- end the loop if no more rows left to process + IF ( @@rowcount = 0 ) + BREAK; + + UPDATE #t1 + SET degree = NULL + WHERE rank = @iter_no + + UPDATE #t1 + SET degree = (SELECT COUNT(*) + FROM #t1 t + WHERE t.relative_id = #t1.object_id + AND t.object_id != t.relative_id + AND t.object_id IN (SELECT tt.object_id + FROM #t1 tt + WHERE tt.rank = 0)) + WHERE degree IS NOT NULL; + + SET @iter_no = @iter_no + 1; + END + +--correcting naming mistakes of objects present in current database +--This part need to be removed once SMO's URN comparision gets fixed +DECLARE @collation SYSNAME; +DECLARE db_cursor CURSOR FOR + SELECT DISTINCT ISNULL(object_db, DB_NAME()) + FROM #t1 AS t + WHERE t.object_id IS NOT NULL + AND t.object_svr IS NULL; + +OPEN db_cursor; + +FETCH next FROM db_cursor INTO @dbname; + +WHILE ( @@FETCH_STATUS <> -1 ) + BEGIN + IF ( DB_ID(@dbname) IS NULL ) + BEGIN + FETCH next FROM db_cursor INTO @dbname; + + CONTINUE; + END + + SET @collation = (SELECT CONVERT(SYSNAME, Databasepropertyex(@dbname, 'Collation'))); + SET @query = + 'UPDATE #t1 set #t1.object_name = o.name,#t1.object_schema = sch.name from #t1 inner join ' + + QUOTENAME(@dbname) + + '.sys.objects as o on #t1.object_id = o.object_id INNER JOIN ' + + QUOTENAME(@dbname) + + '.sys.schemas as sch on sch.schema_id = o.schema_id where o.name = #t1.object_name collate ' + + @collation + + ' AND sch.name = #t1.object_schema collate ' + + @collation; + + EXEC sp_executesql @query; + + FETCH next FROM db_cursor INTO @dbname; +END + +CLOSE db_cursor; + +DEALLOCATE db_cursor; + +--final select +SELECT ISNULL(t.object_id, 0) AS [object_id] + ,t.object_name + ,ISNULL(t.object_schema, '') AS [object_schema] + ,ISNULL(t.object_db, '') AS [object_db] + ,ISNULL(t.object_svr, '') AS [object_svr] + ,t.object_type + ,ISNULL(t.relative_id, 0) AS [relative_id] + ,t.relative_name + ,ISNULL(t.relative_schema, '') AS [relative_schema] + ,relative_db + ,ISNULL(t.relative_svr, '') AS [relative_svr] + ,t.relative_type + ,t.schema_bound + ,ISNULL(CASE + WHEN p.type = 'U' THEN @u + WHEN p.type = 'V' THEN @v + END, 0) AS [ptype] + ,ISNULL(p.name, '') AS [pname] + ,ISNULL(Schema_name(p.schema_id), '') AS [pschema] + ,t.rank +FROM #t1 AS t + LEFT JOIN sys.objects AS o + ON ( t.object_type = @tr + AND o.object_id = t.object_id ) + OR ( t.relative_type = @tr + AND o.object_id = t.relative_id ) + LEFT JOIN sys.objects AS p + ON p.object_id = o.parent_object_id +ORDER BY rank DESC; + +DROP TABLE #t1; +DROP TABLE #t2; +DROP TABLE #tempdep; + +IF @must_set_nocount_off > 0 + SET nocount OFF; diff --git a/Scripts/Find_Synonyms_for_nested_objects_in_the_different_databases.sql b/Scripts/Find_Synonyms_for_nested_objects_in_the_different_databases.sql new file mode 100644 index 00000000..19780d2d --- /dev/null +++ b/Scripts/Find_Synonyms_for_nested_objects_in_the_different_databases.sql @@ -0,0 +1,111 @@ +/* +Author: Svetlana Golovko +Source link: https://www.mssqltips.com/sqlservertip/4876/finding-sql-server-object-dependencies-for-synonyms/ +*/ + +SET NOCOUNT ON; + +-- check if a database has synonyms to the objects in another database +IF EXISTS (SELECT base_object_name + FROM sys.synonyms + WHERE base_object_name LIKE '%.%.%' + AND LEFT (REPLACE(REPLACE(base_object_name ,'[',''),']',''), + CHARINDEX('.', REPLACE(REPLACE(base_object_name ,'[',''),']',''))-1) <> DB_NAME() + ) +BEGIN + + DECLARE @sql NVARCHAR(MAX), + @syn_name NVARCHAR(255), + @db NVARCHAR(255), + @dbid NVARCHAR(20), + @objname NVARCHAR(255) + + CREATE TABLE #tempTbl ( syn_name NVARCHAR(255), + syn_base_object NVARCHAR(255), + syn_base_object_db NVARCHAR(255), + nest_level SMALLINT + ); + + DECLARE SYN_DB CURSOR FOR + + -- get list of synonyms to the objects in another database + SELECT DISTINCT [name] AS SYN_NAME, + LEFT (REPLACE(REPLACE(base_object_name ,'[',''),']',''), + CHARINDEX('.', REPLACE(REPLACE(base_object_name ,'[',''),']',''))-1) AS DBNM, + DB_ID(LEFT (REPLACE(REPLACE(base_object_name ,'[',''),']',''), + CHARINDEX('.', REPLACE(REPLACE(base_object_name ,'[',''),']',''))-1)) AS DBID, + RIGHT (REPLACE(REPLACE(base_object_name ,'[',''),']',''), + CHARINDEX('.', reverse(REPLACE(REPLACE(base_object_name ,'[',''),']','')))-1) AS objectname +FROM sys.synonyms +WHERE base_object_name LIKE '%.%.%' + AND LEFT (REPLACE(REPLACE(base_object_name ,'[',''),']',''), + CHARINDEX('.', REPLACE(REPLACE(base_object_name ,'[',''),']',''))-1) <> DB_NAME() + + OPEN SYN_DB; + + FETCH NEXT FROM SYN_DB + INTO @syn_name, @db, @dbid, @objname; + + WHILE @@FETCH_STATUS = 0 + BEGIN + + SET @sql = ' + WITH DepTree + AS + ( + SELECT ''' + @db + ''' AS DBNAME, + o.[name], + o.[object_id] AS referenced_id , + o.[name] AS referenced_name, + o.[object_id] AS referencing_id, + o.[name] AS referencing_name, + 0 AS NestLevel + FROM [' + @db + '].sys.objects o + WHERE o.is_ms_shipped = 0 + + UNION ALL + + SELECT ''' + @db + ''' AS DBNAME, + r.[name], + d1.referenced_id, + OBJECT_NAME( d1.referenced_id,' + @dbid + ') , + d1.referencing_id, + OBJECT_NAME( d1.referencing_id,' + @dbid + ') , + NestLevel + 1 + FROM [' + @db + '].sys.sql_expression_dependencies d1 JOIN DepTree r + ON d1.referenced_id = r.referencing_id + ) + + INSERT INTO #tempTbl + SELECT ''' + @syn_name + ''' AS syn_name, + ''' + @objname + ''' AS syn_base_object, + ''' + @db + ''' AS syn_base_object_db, + MAX(NestLevel) AS nest_level + FROM DepTree + WHERE referencing_name = ''' + @objname + ''' + GROUP BY referenced_name, DBNAME, referencing_name + ORDER BY MAX(NestLevel) DESC' + + EXECUTE (@sql); + + FETCH NEXT FROM SYN_DB + INTO @syn_name, @db, @dbid, @objname; + END + + CLOSE SYN_DB; + DEALLOCATE SYN_DB; + +END; + +SELECT syn_name + , syn_base_object + , syn_base_object_db + , MAX(nest_level) AS nest_level +FROM #tempTbl +GROUP BY syn_name, syn_base_object, syn_base_object_db +-- comment out next line if you want to see all synonyms' dependent objects regardless the nest level +HAVING MAX(nest_level) > 2; + +DROP TABLE #tempTbl; + +GO diff --git a/Scripts/Find_Synonyms_for_nested_objects_in_the_same_database.sql b/Scripts/Find_Synonyms_for_nested_objects_in_the_same_database.sql new file mode 100644 index 00000000..d643de81 --- /dev/null +++ b/Scripts/Find_Synonyms_for_nested_objects_in_the_same_database.sql @@ -0,0 +1,68 @@ +/* +Author: Svetlana Golovko +Source link: https://www.mssqltips.com/sqlservertip/4876/finding-sql-server-object-dependencies-for-synonyms/ +*/ + +DECLARE @schema SYSNAME; + +-- find default user's schema for the one-part base objects names (no schema name) +SELECT @schema = default_schema_name + FROM sys.database_principals + WHERE name = user_name(); + +-- find all views with their dependencies +WITH DepTree + AS +( + SELECT o.[name], + s.[name] AS oSchema, + o.[object_id] AS referenced_id , + o.[name] AS referenced_name, + o.[object_id] AS referencing_id, + o.[name] AS referencing_name, + 0 AS NestLevel + FROM sys.objects o JOIN sys.schemas s + ON o.[schema_id] = s.[schema_id] + WHERE o.is_ms_shipped = 0 + -- comment out next line if you need to check all object types, not only views + AND o.[type] = 'V' + + UNION ALL + + SELECT r.[name], + r.oSchema, + d1.referenced_id, + OBJECT_NAME( d1.referenced_id) , + d1.referencing_id, + OBJECT_NAME( d1.referencing_id) , + NestLevel + 1 + FROM sys.sql_expression_dependencies d1 JOIN DepTree r + ON d1.referenced_id = r.referencing_id +) +, +-- find all synonyms in CURRENT database +Syn + AS +( + SELECT [name], + base_object_name, + LTRIM(RTRIM( REPLACE(REPLACE(REPLACE(REPLACE(base_object_name ,'[',''),']',''), DB_NAME()+'..',''), DB_NAME()+'.',''))) as objectname + FROM sys.synonyms s + WHERE (base_object_name like '%.%.%' + AND LEFT (REPLACE(REPLACE(base_object_name ,'[',''),']',''), + CHARINDEX('.', REPLACE(REPLACE(base_object_name ,'[',''),']',''))-1) = DB_NAME()) + OR base_object_name NOT LIKE '%.%.%' +) + +SELECT s.[name] AS syn_name, + base_object_name AS syn_base_object, + MAX(NestLevel) AS nest_level +FROM DepTree t JOIN Syn s + ON oSchema + '.' + t.referencing_name = + CASE WHEN s.objectname NOT LIKE '%.%' THEN @schema + '.' + s.objectname + ELSE s.objectname END +GROUP BY base_object_name, s.[name] +-- comment out next line if you want to see all synonyms' dependent objects regardless nest level +HAVING MAX(NestLevel) > 2 +ORDER BY MAX(NestLevel) DESC; +GO diff --git a/Scripts/FindingImplicitColumnConversionsInPlanCache.sql b/Scripts/FindingImplicitColumnConversionsInPlanCache.sql new file mode 100644 index 00000000..acea31a5 --- /dev/null +++ b/Scripts/FindingImplicitColumnConversionsInPlanCache.sql @@ -0,0 +1,33 @@ +/* +Author: Jonathan Kehayias +Original link: https://www.sqlskills.com/blogs/jonathan/finding-implicit-column-conversions-in-the-plan-cache +Desctiption: Finding Implicit Column Conversions in the Plan Cache +*/ + + +SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED + +DECLARE @dbname SYSNAME +SET @dbname = QUOTENAME(DB_NAME()); + +WITH XMLNAMESPACES + (DEFAULT 'http://schemas.microsoft.com/sqlserver/2004/07/showplan') +SELECT + stmt.value('(@StatementText)[1]', 'varchar(max)'), + t.value('(ScalarOperator/Identifier/ColumnReference/@Schema)[1]', 'varchar(128)'), + t.value('(ScalarOperator/Identifier/ColumnReference/@Table)[1]', 'varchar(128)'), + t.value('(ScalarOperator/Identifier/ColumnReference/@Column)[1]', 'varchar(128)'), + ic.DATA_TYPE AS ConvertFrom, + ic.CHARACTER_MAXIMUM_LENGTH AS ConvertFromLength, + t.value('(@DataType)[1]', 'varchar(128)') AS ConvertTo, + t.value('(@Length)[1]', 'int') AS ConvertToLength, + query_plan +FROM sys.dm_exec_cached_plans AS cp +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +CROSS APPLY query_plan.nodes('/ShowPlanXML/BatchSequence/Batch/Statements/StmtSimple') AS batch(stmt) +CROSS APPLY stmt.nodes('.//Convert[@Implicit="1"]') AS n(t) +JOIN INFORMATION_SCHEMA.COLUMNS AS ic + ON QUOTENAME(ic.TABLE_SCHEMA) = t.value('(ScalarOperator/Identifier/ColumnReference/@Schema)[1]', 'varchar(128)') + AND QUOTENAME(ic.TABLE_NAME) = t.value('(ScalarOperator/Identifier/ColumnReference/@Table)[1]', 'varchar(128)') + AND ic.COLUMN_NAME = t.value('(ScalarOperator/Identifier/ColumnReference/@Column)[1]', 'varchar(128)') +WHERE t.exist('ScalarOperator/Identifier/ColumnReference[@Database=sql:variable("@dbname")][@Schema!="[sys]"]') = 1 diff --git a/Scripts/FindingSpecificColumns.sql b/Scripts/FindingSpecificColumns.sql new file mode 100644 index 00000000..3f8c2da5 --- /dev/null +++ b/Scripts/FindingSpecificColumns.sql @@ -0,0 +1,76 @@ +/* +Original link: http://www.sqlservercentral.com/blogs/john-morehouse-sqlruscom/2017/04/25/quick-script-finding-specific-columns +*/ + +/*************************************************************** + Author: John Morehouse + Summary: interrogate each database looking for a specific column name + + You may alter this code for your own purposes. You may republish altered code as long as you give due credit. + + THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE. +***************************************************************/ +DECLARE @dbs AS TABLE ( name sysname, processed BIT) +DECLARE @x INT = 1 +DECLARE @sql VARCHAR (2000) +DECLARE @dbName VARCHAR (50) + +IF object_id ('tempdb..#results') IS NOT NULL +BEGIN +DROP TABLE #results +END + +CREATE TABLE #results ( dbName sysname +, tableName VARCHAR (100) +, columnName VARCHAR (100) +, DataType VARCHAR (100) +, MaxDataLength INT +, theRowCount INT ) + +INSERT INTO @dbs ( name, processed ) +SELECT name, 0 FROM sys.databases +WHERE database_id > 6 +AND [state] = 0 --online + +WHILE @x <= (SELECT COUNT( 1) FROM @dbs WHERE processed = 0 ) +BEGIN +SELECT TOP 1 @dbName = name FROM @dbs WHERE processed = 0 + +SET @sql = +'INSERT #results (dbName, tableName, columnName, DataType, MaxDataLength, theRowCount) +SELECT ''' + @dbName + ''',t.name,c.name,st.name, c.max_length,p.rows +FROM [' + @dbName + '].sys.columns c +INNER JOIN [' + @dbName + '].sys.tables t ON c.object_id = t.object_id +INNER JOIN [' + @dbName + '].sys.systypes st ON c.user_type_ID = st.xusertype +INNER JOIN [' + @dbName + '].sys.partitions p ON t.object_id = p.object_ID +INNER JOIN [' + @dbName + '].sys.allocation_units au ON au.container_ID = +CASE +WHEN au.TYPE IN (1,3) THEN p.hobt_id +WHEN au.type IN (2) THEN p.partition_id +END +WHERE (c.name LIKE ''TIN%'' +OR c.name LIKE ''TIN_TX%'' +OR c.name LIKE ''%SSN%'') -- looking for specific column name +AND c.OBJECT_ID > 100 -- exluded system objects +AND st.name IN (''varchar'', ''nvarchar'') -- due to leading zeros, should be n/varchar data type +AND p.index_id IN (0,1) -- Heap or Clustered Index +AND au.type = 1 --IN_ROW_DATA only' + +--PRINT @sql +BEGIN TRY +EXEC (@sql) +END TRY +BEGIN CATCH +SELECT ERROR_LINE () AS 'Error Line' +, ERROR_MESSAGE () AS 'Error Message' +, ERROR_NUMBER () AS 'Error Number' +, @dbName AS 'Database' +END CATCH + +UPDATE @dbs +SET processed = 1 +WHERE name = @dbName +END + +SELECT * FROM #results +GO diff --git a/Scripts/Finding_Blocking_Queries.sql b/Scripts/Finding_Blocking_Queries.sql new file mode 100644 index 00000000..d6e52bce --- /dev/null +++ b/Scripts/Finding_Blocking_Queries.sql @@ -0,0 +1,54 @@ +--Finding Blocking Queries +--Author: Steve Stedman +--One of the common problems with when diagnosing what appears to be a slow scenario where there may be blocking involved is determining what is blocking on SQL Server +--This script works on SQL Server 2008, 2008R2, 2012, 2014, and 2016 +--If there is no blocking occurring then this query will return nothing + +SELECT * +INTO #runningQueries + FROM master..sysprocesses WITH (NOLOCK); + + +;WITH BlockingCTE as +( + SELECT q1.blocked as spid + FROM #runningQueries q1 + WHERE q1.blocked != 0 + AND q1.blocked not in (SELECT spid FROM #runningQueries q2 WHERE q2.blocked != 0) +) +, recursiveBlocking AS +( + SELECT b.spid, cast(0 as SMALLINT) as blocked, + cast(b.spid as varchar(1000)) as treePath, 0 as level, + sp1.sql_handle, b.spid as topBlock + FROM BlockingCTE b + INNER JOIN #runningQueries sp1 on sp1.spid = b.spid + + UNION ALL + + SELECT sp.spid, rb.spid as blocked, + cast(rb.treePath + '->' + cast(sp.spid as varchar(1000)) as VARCHAR(1000)) as treePath, + level + 1 as level, sp.sql_handle, topBlock + FROM #runningQueries sp + INNER JOIN recursiveBlocking as rb ON rb.spid = sp.blocked +) +, topBlockCount AS +( + SELECT *, count(1) over(partition by topBlock) as NumBlocked + FROM recursiveBlocking +) +SELECT DISTINCT + tb.SPID, + tb.blocked, + tb.treePath as blockingChain, + tb.level, + tb.topBlock, + tb.NumBlocked, + LTRIM(REPLACE(REPLACE(st.text, char(10), ' '), char(13), ' ')) as theQuery + FROM topBlockCount tb + CROSS APPLY sys.dm_exec_sql_text(tb.sql_handle) AS st + ORDER BY NumBlocked DESC, treePath + OPTION (RECOMPILE); + + +DROP TABLE #runningQueries; \ No newline at end of file diff --git a/Scripts/Fix_the_broken_dependencies_on_all__objects.sql b/Scripts/Fix_the_broken_dependencies_on_all__objects.sql new file mode 100644 index 00000000..59fc78c9 --- /dev/null +++ b/Scripts/Fix_the_broken_dependencies_on_all__objects.sql @@ -0,0 +1,185 @@ +/* +Author: Karthick P.K. +Source link: https://mssqlwiki.com/2012/05/04/copy-database-wizard-or-replication-setup-might-fail-due-to-broken-dependency/ +*/ + +--Below script will fix the broken dependencies on all the objects +---------------------------------------------------------------------------- +--List of objects for which referenced objects are missing. +--ex: View created on table XYZ and table XYZ is dropped +---------------------------------------------------------------------------- +SELECT OBJECT_NAME (referencing_id),referenced_database_name, referenced_schema_name, referenced_entity_name +FROM sys.sql_expression_dependencies +WHERE referenced_entity_name not in (select name from sysobjects) + +create table #t_excluded_modules (module_name sysname) +go + +create table #t_modules_refreshed_in_end (module_name sysname) + +go + +------------------------------------------------------------------------------ +-- +-- get the list of modules whose dependencies have to be refreshed +-- +-- Comment: +-- in the list we're not considering procedures or triggers because +-- because they can be created in any order, which means they can be refreshed +-- in any order +-- +------------------------------------------------------------------------------ +create table #t_user_views_or_tables (module_id int) +insert into #t_user_views_or_tables(module_id) + select object_id from sys.objects where + type in ('V', 'FN', 'IF', 'TF') + and name not like 'MSMerge%' + and is_ms_shipped <> 1 + and name not in (select * from #t_modules_refreshed_in_end) + and name not in (select * from #t_excluded_modules) + +insert into #t_user_views_or_tables(module_id) + select object_id from sys.objects where + name in (select * from #t_modules_refreshed_in_end) + +---------------------------------------- +-- +-- get the dependency table +-- |---------------------------------| +-- | referencing_id | referenced_id | +-- | ----------------|---------------| +-- | XXX | XXX | +-- | ----------------|---------------| +-- +---------------------------------------- +Declare @module int, @message varchar(1000), @str nvarchar(1000) +create table #t_dependency_table (referencing_id int, referenced_id int) +DECLARE modules_cursor CURSOR FOR SELECT module_id FROM #t_user_views_or_tables +open modules_cursor +fetch next from modules_cursor into @module + +IF @@FETCH_STATUS <> 0 + PRINT ' <> No module to refresh' + +while @@FETCH_STATUS = 0 + begin + select @str = quotename(schema_name(objectproperty(@module, 'schemaid'))) + '.' + quotename(object_name(@module)) + select @message = ' trying to refresh ' + @str + print @message + exec sys.sp_refreshsqlmodule @str + select @message = ' ' + @str + ' was refreshed' + print @message + + insert into #t_dependency_table (referencing_id, referenced_id) + select distinct object_id as referencing_id, referenced_major_id as referenced_id + from sys.sql_dependencies + where object_id <> referenced_major_id -- to avoid self recursion for functions + and object_id = @module + + fetch next from modules_cursor into @module + end + +close modules_cursor +deallocate modules_cursor + +------------------------------------------------------------------------------------------- +-- +-- get the the bottom of the dependency list i.e. independent modules +-- i.e. +-- get the list of referenced_ids in the dependency table which +-- don't occur in the referencing_ids column +-- +-- Comment: +-- if there are circular dependencies then the few modules which form a circular dependency +-- would be ignored in the independent modules list +-- +------------------------------------------------------------------------------------------- +create table #t_independent_modules (modules int) + +insert into #t_independent_modules (modules) + select #t_dependency_table.referenced_id from + #t_dependency_table left outer join #t_dependency_table t2 + on #t_dependency_table.referenced_id = t2.referencing_id + where + t2.referencing_id is NULL + +------------------------------------------------------------------------------------------- +-- +-- build the ordered list of dependencies starting with the independent modules +-- in the beginning first few rows, ones dependent on it in the following rows and so on... +-- +-- there can be tricky cases of dependencies such as +-- V1 -> V2 -> V3 +-- | ^ +-- +-----------+ +-- +-- in the above example the refresh order would be V3, V1, V2, V1. +-- note that V1 is being refreshed twice, the last refresh of V1 after V2 is important. +-- +------------------------------------------------------------------------------------------- +create table #t_final_dependency_list (id_num int IDENTITY(1,1), modules int) + +while exists (select * from #t_independent_modules) + begin + -- append the set of independent modules into a list + insert into #t_final_dependency_list select * from #t_independent_modules + + -- get the set of dependent modules + select distinct #t_dependency_table.referencing_id into #temp_table + from #t_dependency_table + where #t_dependency_table.referenced_id in (select * from #t_independent_modules) + + -- clear up the list of independent modules + truncate table #t_independent_modules + + -- the dependent modules now become the independent modules + insert into #t_independent_modules select * from #temp_table + + -- delete the dependent modules list + drop table #temp_table + end + +----------------------------------------------------------- +-- +-- refresh the modules once more but in the right order now +-- +----------------------------------------------------------- +declare modules_cursor_final cursor for + select modules from #t_final_dependency_list order by #t_final_dependency_list.id_num + +open modules_cursor_final +fetch next from modules_cursor_final into @module + +IF @@FETCH_STATUS <> 0 + PRINT ' <> No module to refresh' + +while @@FETCH_STATUS = 0 + begin + if (select type from sys.objects where object_id = @module) in ('V', 'FN', 'IF', 'TF') + and (select is_schema_bound from sys.sql_modules where object_id = @module) = 0 + begin + select @str = quotename(schema_name(objectproperty(@module, 'schemaid'))) + '.' + quotename(object_name(@module)) + select @message = ' trying to finally, once more, refresh ' + @str + print @message + exec sys.sp_refreshsqlmodule @str + select @message = ' ' + @str + ' was finally refreshed once again' + print @message + end + + fetch next from modules_cursor_final into @module + end + +close modules_cursor_final +DEALLOCATE modules_cursor_final; + +----------- +-- +-- cleanup +-- +----------- +drop table #t_excluded_modules; +drop table #t_modules_refreshed_in_end; +drop table #t_user_views_or_tables; +drop table #t_dependency_table; +drop table #t_independent_modules; +drop table #t_final_dependency_list; diff --git a/Scripts/Foreign Key batch rename.sql b/Scripts/Foreign_Key_batch_rename.sql similarity index 54% rename from Scripts/Foreign Key batch rename.sql rename to Scripts/Foreign_Key_batch_rename.sql index 88a27769..ca84c3ef 100644 --- a/Scripts/Foreign Key batch rename.sql +++ b/Scripts/Foreign_Key_batch_rename.sql @@ -2,29 +2,29 @@ Author: Wes Henriksen Source: http://www.sqlservercentral.com/scripts/Foreign+Keys+%28FK%29/97811/ */ - DECLARE @SchemaName VARCHAR(50) = NULL; DECLARE @TableName VARCHAR(250) = NULL; DECLARE @ColumnName VARCHAR(250) = NULL; DECLARE @SQLDrop VARCHAR(MAX) = ''; DECLARE @SQLAdd VARCHAR(MAX) = ''; DECLARE @SQLEnable VARCHAR(MAX) = ''; + WITH cte - AS ( SELECT SQLDrop = 'IF EXISTS (SELECT * FROM sys.foreign_keys WHERE object_id = Object_ID(N''[' + SCHEMA_NAME(FK.SCHEMA_ID) + '].[' + FK.name + ']'') AND parent_object_id =OBJECT_ID(N''[' + SCHEMA_NAME(FK.SCHEMA_ID) + '].[' + OBJECT_NAME(FK.Parent_object_id) + ']'') ' + ') + AS ( SELECT SQLDrop = 'IF EXISTS (SELECT * FROM sys.foreign_keys WHERE object_id = Object_ID(N''[' + SCHEMA_NAME(FK.schema_id) + '].[' + FK.name + ']'') AND parent_object_id =OBJECT_ID(N''[' + SCHEMA_NAME(FK.schema_id) + '].[' + OBJECT_NAME(FK.parent_object_id) + ']'') ' + ') BEGIN - ALTER TABLE [' + SCHEMA_NAME(FK.SCHEMA_ID) + '].[' + OBJECT_NAME(FK.Parent_object_id) + '] DROP CONSTRAINT [' + FK.name + ']' + CHAR(13) + CHAR(10) + 'END' + CHAR(13) + CHAR(10) - , SQLAdd = ' ALTER TABLE [' + SCHEMA_NAME(FK.SCHEMA_ID) + '].[' + OBJECT_NAME(FK.Parent_object_id) + '] WITH NOCHECK ADD CONSTRAINT [FK_' + OBJECT_NAME(FK.Parent_object_id) + '_' + KeyOnC.name + '_' + SCHEMA_NAME(ReferencedT.SCHEMA_ID) + ReferencedT.NAME --+ '_' + ReferencedC.name - + '] FOREIGN KEY(' + KeyOnC.NAME + ') REFERENCES ' + SCHEMA_NAME(ReferencedT.schema_id) + '.' + ReferencedT.NAME + '(' + ReferencedC.NAME + ')' + ALTER TABLE [' + SCHEMA_NAME(FK.schema_id) + '].[' + OBJECT_NAME(FK.parent_object_id) + '] DROP CONSTRAINT [' + FK.name + ']' + CHAR(13) + CHAR(10) + 'END' + CHAR(13) + CHAR(10) + , SQLAdd = 'ALTER TABLE [' + SCHEMA_NAME(FK.schema_id) + '].[' + OBJECT_NAME(FK.parent_object_id) + '] WITH NOCHECK ADD CONSTRAINT [FK_' + OBJECT_NAME(FK.parent_object_id) + '_' + KeyOnC.name + '_' + SCHEMA_NAME(ReferencedT.schema_id) + ReferencedT.name --+ '_' + ReferencedC.name + + '] FOREIGN KEY(' + KeyOnC.name + ') REFERENCES ' + SCHEMA_NAME(ReferencedT.schema_id) + '.' + ReferencedT.name + '(' + ReferencedC.name + ')' --+ ' ON DELETE CASCADE' - , LenConstraintName = LEN('FK_' + OBJECT_NAME(FK.Parent_object_id) + '_' + KeyOnC.name + '_' + SCHEMA_NAME(ReferencedT.SCHEMA_ID) + ReferencedT.NAME) - , SQLEnable = ' ALTER TABLE [' + SCHEMA_NAME(FK.SCHEMA_ID) + '].[' + OBJECT_NAME(FK.Parent_object_id) + '] WITH CHECK CHECK CONSTRAINT [FK_' + OBJECT_NAME(FK.Parent_object_id) + '_' + KeyOnC.name + '_' + SCHEMA_NAME(ReferencedT.SCHEMA_ID) + ReferencedT.NAME + ']' --+ '_' + ReferencedC.name + , LenConstraintName = LEN('FK_' + OBJECT_NAME(FK.parent_object_id) + '_' + KeyOnC.name + '_' + SCHEMA_NAME(ReferencedT.schema_id) + ReferencedT.name) + , SQLEnable = 'ALTER TABLE [' + SCHEMA_NAME(FK.schema_id) + '].[' + OBJECT_NAME(FK.parent_object_id) + '] WITH CHECK CHECK CONSTRAINT [FK_' + OBJECT_NAME(FK.parent_object_id) + '_' + KeyOnC.name + '_' + SCHEMA_NAME(ReferencedT.schema_id) + ReferencedT.name + ']' --+ '_' + ReferencedC.name , NumRank = ROW_NUMBER() OVER ( ORDER BY SCHEMA_NAME(FK.SCHEMA_ID), OBJECT_NAME(FK.Parent_object_id) ) FROM sys.foreign_keys AS FK INNER JOIN sys.foreign_key_columns AS FKC - ON fk.object_id = fkc.constraint_object_id + ON FK.object_id = FKC.constraint_object_id INNER JOIN sys.columns AS KeyOnC - ON FKC.Parent_object_id = KeyOnC.object_id - AND FKC.Parent_column_id = KeyOnC.column_id + ON FKC.parent_object_id = KeyOnC.object_id + AND FKC.parent_column_id = KeyOnC.column_id INNER JOIN sys.columns AS ReferencedC ON FKC.referenced_object_id = ReferencedC.object_id AND FKC.referenced_column_id = ReferencedC.column_id @@ -39,15 +39,16 @@ BEGIN OR ReferencedT.name LIKE '%' + @TableName + '%' OR @TableName IS NULL ) - AND ( KeyOnC.Name = @ColumnName + AND ( KeyOnC.name = @ColumnName OR ReferencedC.name = @ColumnName OR @ColumnName IS NULL ) AND NOT SCHEMA_NAME(KeyOnT.schema_id) = 'ref' - ) - SELECT SQLDrop - , SQLAdd - , LenConstraintName - , SQLEnable - FROM cte - ORDER BY NumRank +) +SELECT SQLDrop + , SQLAdd + , LenConstraintName + , SQLEnable +FROM cte +ORDER BY NumRank; +GO \ No newline at end of file diff --git a/Scripts/GenerateTSQLTimeSlices.sql b/Scripts/GenerateTSQLTimeSlices.sql new file mode 100644 index 00000000..a948d981 --- /dev/null +++ b/Scripts/GenerateTSQLTimeSlices.sql @@ -0,0 +1,30 @@ +/* +Author: Atom +Original link: http://billfellows.blogspot.ru/2017/07/generate-tsql-time-slices.html +Desctiption: Generate TSQL time slices +*/ + + +SELECT + D.Slice AS SliceStart +, LEAD + ( + D.Slice + , 1 + -- Default to midnight + , TIMEFROMPARTS(0,0,0,0,0) + ) + OVER (ORDER BY D.Slice) AS SliceStop +, ROW_NUMBER() OVER (ORDER BY D.Slice) AS SliceLabel +FROM +( + -- Generate 15 second time slices + SELECT + TIMEFROMPARTS(A.rn, B.rn, C.rn, 0, 0) AS Slice + FROM + (SELECT TOP (24) -1 + ROW_NUMBER() OVER (ORDER BY(SELECT NULL)) FROM sys.all_objects AS AO) AS A(rn) + CROSS APPLY (SELECT TOP (60) (-1 + ROW_NUMBER() OVER (ORDER BY(SELECT NULL))) FROM sys.all_objects AS AO) AS B(rn) + -- 4 values since we'll aggregate to 15 seconds + CROSS APPLY (SELECT TOP (4) (-1 + ROW_NUMBER() OVER (ORDER BY(SELECT NULL))) * 15 FROM sys.all_objects AS AO) AS C(rn) +) D + diff --git a/Scripts/Generate_Restore_Script_From_Backup_Folder.sql b/Scripts/Generate_Restore_Script_From_Backup_Folder.sql index c37776df..c6a0e49a 100644 --- a/Scripts/Generate_Restore_Script_From_Backup_Folder.sql +++ b/Scripts/Generate_Restore_Script_From_Backup_Folder.sql @@ -1,81 +1,81 @@ -/* -Author: Greg Robidoux -Original link: https://www.mssqltips.com/sqlservertip/1584/auto-generate-sql-server-restore-script-from-backup-files-in-a-directory/ -*/ - -USE Master; -GO -SET NOCOUNT ON; - --- 1 - Variable declaration -DECLARE @dbName sysname; -DECLARE @backupPath NVARCHAR(500); -DECLARE @cmd NVARCHAR(500); -DECLARE @fileList TABLE (backupFile NVARCHAR(255)); -DECLARE @lastFullBackup NVARCHAR(500); -DECLARE @lastDiffBackup NVARCHAR(500); -DECLARE @backupFile NVARCHAR(500); - --- 2 - Initialize variables -SET @dbName = 'Customer'; -SET @backupPath = 'D:\SQLBackups\'; - --- 3 - get list of files -SET @cmd = 'DIR /b ' + @backupPath; - -INSERT INTO @fileList(backupFile) -EXEC master.sys.xp_cmdshell @cmd; - --- 4 - Find latest full backup -SELECT @lastFullBackup = MAX(backupFile) -FROM @fileList -WHERE backupFile LIKE '%.BAK' - AND backupFile LIKE @dbName + '%'; - -SET @cmd = 'RESTORE DATABASE ' + @dbName + ' FROM DISK = ''' - + @backupPath + @lastFullBackup + ''' WITH NORECOVERY, REPLACE'; -PRINT @cmd; - --- 4 - Find latest diff backup -SELECT @lastDiffBackup = MAX(backupFile) -FROM @fileList -WHERE backupFile LIKE '%.DIF' - AND backupFile LIKE @dbName + '%' - AND backupFile > @lastFullBackup; - --- check to make sure there is a diff backup -IF @lastDiffBackup IS NOT NULL -BEGIN - SET @cmd = 'RESTORE DATABASE ' + @dbName + ' FROM DISK = ''' - + @backupPath + @lastDiffBackup + ''' WITH NORECOVERY'; - PRINT @cmd; - SET @lastFullBackup = @lastDiffBackup; -END - --- 5 - check for log backups -DECLARE backupFiles CURSOR FOR - SELECT backupFile - FROM @fileList - WHERE backupFile LIKE '%.TRN' - AND backupFile LIKE @dbName + '%' - AND backupFile > @lastFullBackup; - -OPEN backupFiles - --- Loop through all the files for the database -FETCH NEXT FROM backupFiles INTO @backupFile - -WHILE @@FETCH_STATUS = 0 -BEGIN - SET @cmd = 'RESTORE LOG ' + @dbName + ' FROM DISK = ''' - + @backupPath + @backupFile + ''' WITH NORECOVERY'; - PRINT @cmd; - FETCH NEXT FROM backupFiles INTO @backupFile; -END - -CLOSE backupFiles; -DEALLOCATE backupFiles; - --- 6 - put database in a useable state -SET @cmd = 'RESTORE DATABASE ' + @dbName + ' WITH RECOVERY'; +/* +Author: Greg Robidoux +Original link: https://www.mssqltips.com/sqlservertip/1584/auto-generate-sql-server-restore-script-from-backup-files-in-a-directory/ +*/ + +USE Master; +GO +SET NOCOUNT ON; + +-- 1 - Variable declaration +DECLARE @dbName sysname; +DECLARE @backupPath NVARCHAR(500); +DECLARE @cmd NVARCHAR(500); +DECLARE @fileList TABLE (backupFile NVARCHAR(255)); +DECLARE @lastFullBackup NVARCHAR(500); +DECLARE @lastDiffBackup NVARCHAR(500); +DECLARE @backupFile NVARCHAR(500); + +-- 2 - Initialize variables +SET @dbName = 'Customer'; +SET @backupPath = 'D:\SQLBackups\'; + +-- 3 - get list of files +SET @cmd = 'DIR /b ' + @backupPath; + +INSERT INTO @fileList(backupFile) +EXEC master.sys.xp_cmdshell @cmd; + +-- 4 - Find latest full backup +SELECT @lastFullBackup = MAX(backupFile) +FROM @fileList +WHERE backupFile LIKE '%.BAK' + AND backupFile LIKE @dbName + '%'; + +SET @cmd = 'RESTORE DATABASE ' + @dbName + ' FROM DISK = ''' + + @backupPath + @lastFullBackup + ''' WITH NORECOVERY, REPLACE'; +PRINT @cmd; + +-- 4 - Find latest diff backup +SELECT @lastDiffBackup = MAX(backupFile) +FROM @fileList +WHERE backupFile LIKE '%.DIF' + AND backupFile LIKE @dbName + '%' + AND backupFile > @lastFullBackup; + +-- check to make sure there is a diff backup +IF @lastDiffBackup IS NOT NULL +BEGIN + SET @cmd = 'RESTORE DATABASE ' + @dbName + ' FROM DISK = ''' + + @backupPath + @lastDiffBackup + ''' WITH NORECOVERY'; + PRINT @cmd; + SET @lastFullBackup = @lastDiffBackup; +END + +-- 5 - check for log backups +DECLARE backupFiles CURSOR FOR + SELECT backupFile + FROM @fileList + WHERE backupFile LIKE '%.TRN' + AND backupFile LIKE @dbName + '%' + AND backupFile > @lastFullBackup; + +OPEN backupFiles + +-- Loop through all the files for the database +FETCH NEXT FROM backupFiles INTO @backupFile + +WHILE @@FETCH_STATUS = 0 +BEGIN + SET @cmd = 'RESTORE LOG ' + @dbName + ' FROM DISK = ''' + + @backupPath + @backupFile + ''' WITH NORECOVERY'; + PRINT @cmd; + FETCH NEXT FROM backupFiles INTO @backupFile; +END + +CLOSE backupFiles; +DEALLOCATE backupFiles; + +-- 6 - put database in a useable state +SET @cmd = 'RESTORE DATABASE ' + @dbName + ' WITH RECOVERY'; PRINT @cmd; \ No newline at end of file diff --git a/Scripts/Generate_table_definition_to_match_query.sql b/Scripts/Generate_table_definition_to_match_query.sql new file mode 100644 index 00000000..9f492fd7 --- /dev/null +++ b/Scripts/Generate_table_definition_to_match_query.sql @@ -0,0 +1,20 @@ +/* +Author: SQL Undercover +Source link: https://sqlundercover.com/2017/08/21/undercover-toolbox-generate-a-temporary-table-definition-to-match-the-resultset-of-a-query/ +*/ + +SET NOCOUNT ON; + +DECLARE @Query VARCHAR(MAX) = 'select * from sys.databases;'; +DECLARE @TempTableName VARCHAR(128) = '#temptable'; +DECLARE @ColumnList VARCHAR(MAX); + +SELECT @ColumnList = STUFF((SELECT ',' + name + ' ' + system_type_name + ' ' + +CASE is_nullable WHEN 0 THEN 'NOT NULL' ELSE 'NULL' END ++ CHAR(10) +FROM sys.dm_exec_describe_first_result_set(@Query, NULL, 0) +FOR XML PATH('')) ,1,1,''); + +PRINT 'CREATE TABLE ' + @TempTableName + '(' +PRINT @ColumnList; +PRINT(')'); \ No newline at end of file diff --git a/Scripts/GetResourceNameFromBlockedProcessReport.sql b/Scripts/GetResourceNameFromBlockedProcessReport.sql new file mode 100644 index 00000000..547f12fc --- /dev/null +++ b/Scripts/GetResourceNameFromBlockedProcessReport.sql @@ -0,0 +1,248 @@ +/* +Author: Darko Martinovic +Original link: http://www.sqlservercentral.com/scripts/T-SQL/153452 +*/ + +IF EXISTS (SELECT * + FROM sys.objects + WHERE object_id = OBJECT_ID(N'[dbo].[GetResourceName]') + AND type IN (N'FN', N'IF', N'TF', N'FS', N'FT')) +BEGIN + DROP FUNCTION [dbo].[GetResourceName] +END; +GO + +-- ============================================= +-- Get resource name from wait info +-- KEY: 6:72057594041991168 (ce52f92a058c) +-- OBJECT: 10:1730105204:0 databaseId + objectId + lockPartition +-- PAGE: 7:1:422000 databaseId + fileId + pageId +-- FILE: 8:0 +-- ============================================= +CREATE FUNCTION [dbo].[GetResourceName] ( @waitResource AS nvarchar(128) +, @paramName as sysname =NULL ) +RETURNS nvarchar(max) --we will return t-sql +AS +BEGIN + DECLARE @blockingType AS nvarchar(20); + --type of blockin KEY,OBJECT,PAGE + DECLARE @retValue AS nvarchar(max); + DECLARE @dbId bigint; + DECLARE @blockingKey AS nvarchar(256); + + SET @retValue = ''; + + SET @blockingType = RTRIM(SUBSTRING(@waitResource, 1, CHARINDEX(':', @waitResource) - 1)); + SET @blockingKey = SUBSTRING(@waitResource, CHARINDEX(':', @waitResource) + 1, LEN(@waitResource) - CHARINDEX(':', @waitResource)); + SET @dbId = SUBSTRING(@blockingKey, 1, CHARINDEX(':', @blockingKey) - 1); + + + IF @blockingType = 'KEY' + BEGIN + + DECLARE @hobId AS bigint; + SET @hobId = RTRIM(SUBSTRING(@blockingKey, CHARINDEX(':', @blockingKey) + 1, CHARINDEX('(', @blockingKey) - CHARINDEX(':', @blockingKey) - 1)); + + IF @paramName IS NOT NULL + BEGIN + SET @retValue = 'SET ' + @paramName + ' = ('; + END + SET @retValue = @retValue + + 'SELECT sc.name + ''.'' +so.name + ''('' + si.name + '')'' + FROM ' + DB_NAME(@dbId) + '.sys.partitions AS p + JOIN ' + DB_NAME(@dbId) + '.sys.objects AS so + ON p.object_id = so.object_id + JOIN ' + DB_NAME(@dbId) + '.sys.indexes AS si + ON p.index_id = si.index_id + AND p.object_id = si.object_id + JOIN ' + DB_NAME(@dbId) + '.sys.schemas AS sc + ON so.schema_id = sc.schema_id + WHERE p.hobt_id = ' + CAST(@hobId AS NVARCHAR(MAX)); + IF @paramName IS NOT NULL + BEGIN + SET @retValue = @retValue + ')' + END + END + ELSE + IF @blockingType = 'OBJECT' + BEGIN + DECLARE @pos AS INT; + DECLARE @helper AS NVARCHAR(50); + DECLARE @objectId AS BIGINT; + + SET @pos = CHARINDEX(':', @blockingKey) + 1; + SET @helper = SUBSTRING(@blockingKey, @pos, 100); + SET @objectId = SUBSTRING(@helper, 1, CHARINDEX(':', @helper) - 1); + --SET @retValue = N'USE ' + DB_NAME(@dbId) + CHAR(13) + CHAR(10); + SET @retValue = N''; + + IF @paramName IS NOT NULL + BEGIN + SET @retValue = 'SET ' + @paramName + ' = ('; + END + SET @retValue = @retValue + + 'SELECT TOP 1 s.name + ''.'' + o.name +FROM ' + DB_NAME(@dbid) +' .sys.objects o +INNER JOIN ' + DB_NAME(@dbid) + '.sys.partitions p + ON p.object_id = o.object_id +INNER JOIN ' + DB_NAME(@dbid) +'.sys.schemas s + ON s.schema_id = o.schema_id +WHERE p.OBJECT_ID = ' + CAST(@objectId AS NVARCHAR(MAX)); + IF @paramName IS NOT NULL + BEGIN + SET @retValue = @retValue + ')' + END + + END; + + ELSE + IF @blockingType = 'PAGE' + BEGIN + --PAGE 7:1:422000 + DECLARE @pos1 AS INT; + DECLARE @helper1 AS NVARCHAR(50); + DECLARE @fileId AS BIGINT; + DECLARE @pageId AS BIGINT; + + SET @pos1 = CHARINDEX(':', @blockingKey) + 1; + SET @helper1 = SUBSTRING(@blockingKey, @pos1, 100); + SET @fileId = SUBSTRING(@helper1, 1, CHARINDEX(':', @helper1) - 1); + SET @pageId = CAST(SUBSTRING(@helper1, CHARINDEX(':', @helper1) + 1, LEN(@helper1) - CHARINDEX(':', @helper1)) AS BIGINT) + SET @retValue = 'DECLARE @objectId as bigint + +IF OBJECT_ID(''tempdb..#pagedata'') IS NOT NULL +BEGIN +DROP TABLE #pagedata +END; + +CREATE TABLE #pagedata +( + ParentObject varchar(1000) NULL, Object varchar(4000) NULL, Field varchar(1000) NULL, ObjectValue varchar(max) NULL +); + + ' + + 'DBCC traceon (3604); ' + CHAR(13) + CHAR(10) + + 'SET NOCOUNT ON ;' + CHAR(13) + CHAR(10) + + 'INSERT INTO #pagedata( ParentObject, Object, Field, ObjectValue )' + CHAR(13) + CHAR(10) + + 'EXEC (''DBCC page (' + CAST(@dbId AS NVARCHAR(20)) + ', ' + CAST(@fileId AS NVARCHAR(10)) + ', ' + CAST(@pageId AS NVARCHAR(MAX)) + ') WITH TABLERESULTS '') +SELECT @objectId=objectvalue +FROM #pagedata +WHERE field LIKE ''Metadata: ObjectId%'';' + + IF @paramName IS NOT NULL + BEGIN + SET @retValue = @retValue + 'SET ' + @paramName + ' = ('; + END + + SET @retValue = @retValue + 'SELECT TOP 1 s.name + ''.'' + o.name +FROM ' + DB_NAME(@dbid) +' .sys.objects o +INNER JOIN ' + DB_NAME(@dbid) + '.sys.partitions p + ON p.object_id = o.object_id +INNER JOIN ' + DB_NAME(@dbid) +'.sys.schemas s + ON s.schema_id = o.schema_id +WHERE p.OBJECT_ID = @objectId '; + IF @paramName IS NOT NULL + BEGIN + SET @retValue = @retValue + ')' + END + + END; + + RETURN @retvalue; +END; + + + +/* Part two - using CLR +Run this script on Sql server 2008+. +Check first if clr enabled + +sp_configure 'clr', 1 +reconfigure + +Replace strings with your database name e.g.AdventureWorks2012 +Replace default data and log path with server settings. These can be found +on server properties, database settings + +*/ + +GO +SET ANSI_NULLS, ANSI_PADDING, ANSI_WARNINGS, ARITHABORT, CONCAT_NULL_YIELDS_NULL, QUOTED_IDENTIFIER ON; + +SET NUMERIC_ROUNDABORT OFF; + + +GO +:setvar DatabaseName "" +:setvar DefaultFilePrefix "" +:setvar DefaultDataPath "" +:setvar DefaultLogPath "" + +GO +:on error exit +GO +/* +Detect SQLCMD mode and disable script execution if SQLCMD mode is not supported. +To re-enable the script after enabling SQLCMD mode, execute the following: +SET NOEXEC OFF; +*/ +:setvar __IsSqlCmdEnabled "True" +GO +IF N'$(__IsSqlCmdEnabled)' NOT LIKE N'True' + BEGIN + PRINT N'SQLCMD mode must be enabled to successfully execute this script.'; +SET NOEXEC ON; + END + + +GO +USE [$(DatabaseName)]; + + +GO +PRINT N'Creating [SqlClrGetResourceName]...'; + + +GO +CREATE ASSEMBLY [SqlClrGetResourceName] + AUTHORIZATION [dbo] + FROM 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AS N'SqlClrGetResourceName.pdb'; + + +GO +PRINT N'Creating [dbo].[GetResourceNameClr]...'; + + +GO +CREATE FUNCTION [dbo].[GetResourceNameClr] +(@waitResource NVARCHAR (128)) +RETURNS NVARCHAR (MAX) +AS + EXTERNAL NAME [SqlClrGetResourceName].[UserDefinedFunctions].[GetResourceNameClr] + + +GO +PRINT N'Creating [dbo].[GetResourceNameFromPageClr]...'; + + +GO +CREATE PROCEDURE [dbo].[GetResourceNameFromPageClr] +@dbid SMALLINT, @fileId INT, @pageId BIGINT +AS EXTERNAL NAME [SqlClrGetResourceName].[StoredProcedures].[GetResourceNameFromPageClr] + + +GO +PRINT N'Reenabling DDL triggers...' +GO +ENABLE TRIGGER [DDlTriggerLogging] ON DATABASE +GO +PRINT N'Update complete.'; + + +GO diff --git a/Scripts/Get_Database_Size_With_Graph.sql b/Scripts/Get_Database_Size_With_Graph.sql new file mode 100644 index 00000000..adbe8cbb --- /dev/null +++ b/Scripts/Get_Database_Size_With_Graph.sql @@ -0,0 +1,19 @@ +/* +Author: Denis Gobo +Original link: http://sqlservercode.blogspot.ru/2017/11/use-t-sql-to-create-caveman-graphs.html +*/ + +SELECT database_name = DB_NAME(database_id) + , TotalSizeGB = CAST(SUM(size) * 8.0 / 1024/1024 AS DECIMAL(30,2)) + , PercentSize = (CONVERT(decimal(30,4), (SUM(size) / + (SELECT SUM(CONVERT(decimal(30,4),size)) + FROM sys.master_files WITH(NOWAIT))) + ) * 100.00) + , Graph = replicate('|', ((convert(decimal(30,2), (SUM(size) / + (SELECT SUM(CONVERT(decimal(30,2),size)) + FROM sys.master_files WITH(NOWAIT)))) * 100) + ) + ) +FROM sys.master_files WITH(NOWAIT) +GROUP BY database_id +ORDER BY PercentSize DESC; diff --git a/Scripts/Get_SQLServer_Startup_Parameters.sql b/Scripts/Get_SQLServer_Startup_Parameters.sql new file mode 100644 index 00000000..e50f4dbf --- /dev/null +++ b/Scripts/Get_SQLServer_Startup_Parameters.sql @@ -0,0 +1,16 @@ +DECLARE @RegHive VARCHAR(50), + @RegKey VARCHAR(100); + +SET @RegHive = 'HKEY_LOCAL_MACHINE'; +SET @RegKey = 'Software\Microsoft\MSSQLSERVER\MSSQLServer\Parameters'; + +-- Get all of the arguments / parameters when starting up the service. +DECLARE @SQLArgs TABLE ( + Value VARCHAR(50), + Data VARCHAR(500), + ArgNum AS CONVERT(INTEGER, REPLACE(Value, 'SQLArg', ''))); + +INSERT INTO @SQLArgs + EXECUTE master.sys.xp_instance_regenumvalues @RegHive, @RegKey; + +SELECT * FROM @SQLArgs; \ No newline at end of file diff --git a/Scripts/Get_SQL_Server_Agent_Information.sql b/Scripts/Get_SQL_Server_Agent_Information.sql new file mode 100644 index 00000000..5433b1ca --- /dev/null +++ b/Scripts/Get_SQL_Server_Agent_Information.sql @@ -0,0 +1,30 @@ +/* +Author: sqlity.net +Source link: http://sqlity.net/en/1868/identify-sql-server-service-account-in-t-sql/ +*/ + +IF CAST(SERVERPROPERTY('ProductMajorVersion') AS INT) < 10 +BEGIN + DECLARE @sn NVARCHAR(128); + EXEC master.dbo.xp_regread + 'HKEY_LOCAL_MACHINE', + 'SYSTEM\CurrentControlSet\services\SQLSERVERAGENT', + 'ObjectName', + @sn OUTPUT; + SELECT @sn; +END; +ELSE +BEGIN + SELECT DSS.servicename + , DSS.startup_type_desc + , DSS.status_desc + , DSS.last_startup_time + , DSS.service_account + , DSS.is_clustered + , DSS.cluster_nodename + , DSS.filename + , DSS.startup_type + , DSS.status + , DSS.process_id + FROM sys.dm_server_services AS DSS; +END; diff --git a/Scripts/Get_SQL_Server_Backup_Directory.sql b/Scripts/Get_SQL_Server_Backup_Directory.sql new file mode 100644 index 00000000..0b501fab --- /dev/null +++ b/Scripts/Get_SQL_Server_Backup_Directory.sql @@ -0,0 +1,11 @@ +DECLARE @HkeyLocal nvarchar(18) = N'HKEY_LOCAL_MACHINE'; +DECLARE @MSSqlServerRegPath nvarchar(31) = N'SOFTWARE\Microsoft\MSSQLServer'; +DECLARE @InstanceRegPath sysname = @MSSqlServerRegPath + N'\MSSQLServer'; + +DECLARE @BackupDirectory nvarchar(512) +if 1=isnull(cast(SERVERPROPERTY('IsLocalDB') as bit), 0) +SET @BackupDirectory=cast(SERVERPROPERTY('instancedefaultdatapath') as nvarchar(512)) +else +EXEC master.dbo.xp_instance_regread @HkeyLocal, @InstanceRegPath, N'BackupDirectory', @BackupDirectory OUTPUT; + +SELECT @BackupDirectory AS SQLServerBackupDirectory; diff --git a/Scripts/Get_Statistics_Details.sql b/Scripts/Get_Statistics_Details.sql new file mode 100644 index 00000000..ce75b936 --- /dev/null +++ b/Scripts/Get_Statistics_Details.sql @@ -0,0 +1,35 @@ +-- Get statistics details on SQL Server 2008 R2 and higher +-- Author: Kendra Little +-- "This works with SQL Server 2008 R2 SP2+ / SQL Server 2012 SP1+ / All higher versions" + SELECT + stat.auto_created, + stat.name as stats_name, + STUFF((SELECT ', ' + cols.name + FROM sys.stats_columns AS statcols + JOIN sys.columns AS cols ON + statcols.column_id=cols.column_id + AND statcols.object_id=cols.object_id + WHERE statcols.stats_id = stat.stats_id and + statcols.object_id=stat.object_id + ORDER BY statcols.stats_column_id + FOR XML PATH(''), TYPE + ).value('.', 'NVARCHAR(MAX)'), 1, 2, '') as stat_cols, + stat.filter_definition, + stat.is_temporary, + stat.no_recompute, + sp.last_updated, + sp.modification_counter, + sp.rows, + sp.rows_sampled + FROM sys.stats as stat + CROSS APPLY sys.dm_db_stats_properties (stat.object_id, stat.stats_id) AS sp + JOIN sys.objects as so on + stat.object_id=so.object_id + JOIN sys.schemas as sc on + so.schema_id=sc.schema_id + WHERE + sc.name= 'Warehouse' + and so.name='StockItemTransactions' + ORDER BY 1, 2; + GO + \ No newline at end of file diff --git a/Scripts/Get_Table_Hierarchy.sql b/Scripts/Get_Table_Hierarchy.sql new file mode 100644 index 00000000..e3ee953b --- /dev/null +++ b/Scripts/Get_Table_Hierarchy.sql @@ -0,0 +1,71 @@ +/* +Author: Alexandros Pappas +Original link: http://www.codeproject.com/Articles/1118722/SQL-Table-Hierarchy +*/ + +DECLARE @fkcolumns TABLE(name SYSNAME PRIMARY KEY, referencedtable SYSNAME, parenttable SYSNAME, referencedcolumns varchar(MAX), parentcolumns varchar(MAX)) +INSERT @fkcolumns +SELECT + a.name, + b.name, + c.name, + STUFF(( + SELECT ',' + c.name + FROM sys.foreign_key_columns b + INNER JOIN sys.columns c ON b.referenced_object_id = c.object_id + AND b.referenced_column_id = c.column_id + WHERE a.object_id = b.constraint_object_id + FOR XML PATH('')), 1, 1, '') parentcolumns, + STUFF(( + SELECT ',' + c.name + FROM sys.foreign_key_columns b + INNER JOIN sys.columns c ON b.parent_object_id = c.object_id + AND b.parent_column_id = c.column_id + WHERE a.object_id = b.constraint_object_id + FOR XML PATH('')), 1, 1, '') childcolumns +FROM sys.foreign_keys a +INNER JOIN sys.tables b ON a.referenced_object_id = b.object_id +INNER JOIN sys.tables c ON a.parent_object_id = c.object_id; + +DECLARE @fkrefs TABLE(referencedtable SYSNAME, parenttable SYSNAME, referencedcolumns varchar(MAX), parentcolumns varchar(MAX)) +INSERT @fkrefs +SELECT *, + (SELECT TOP 1 b.referencedcolumns + FROM @fkcolumns b + WHERE a.referencedtable = b.referencedtable and a.parenttable = b.parenttable), + STUFF(( + SELECT ';' + b.parentcolumns + FROM @fkcolumns b + WHERE a.referencedtable = b.referencedtable and a.parenttable = b.parenttable + FOR XML PATH('')), 1, 1, '') +FROM ( + SELECT referencedtable, parenttable + FROM @fkcolumns a + GROUP BY referencedtable, parenttable +) a; + +WITH fks(treelevel, treepath, tablename, referencedcolumns, parentcolumns) AS ( +SELECT 1, + CAST(a.name AS VARCHAR(MAX)), + a.name, + CAST('' AS VARCHAR(MAX)), + CAST('' AS VARCHAR(MAX)) + FROM sys.tables a + LEFT JOIN @fkrefs c ON a.name = c.parenttable AND c.referencedtable <> c.parenttable + WHERE c.referencedtable IS NULL + UNION ALL + SELECT treelevel + 1, + CAST(a.treepath + '_' + b.parenttable AS varchar(MAX)), + b.parenttable, + b.referencedcolumns, + b.parentcolumns + FROM fks a + INNER JOIN @fkrefs b ON a.tablename = b.referencedtable + WHERE treelevel < 10) +SELECT treelevel, + treepath, + REPLICATE('|---- ', treelevel) + tablename tablename, + referencedcolumns, + parentcolumns +FROM fks +ORDER BY treepath; diff --git a/Scripts/Get_latches_Objects.sql b/Scripts/Get_latches_Objects.sql new file mode 100644 index 00000000..e4d3f3ab --- /dev/null +++ b/Scripts/Get_latches_Objects.sql @@ -0,0 +1,83 @@ +IF OBJECT_ID('tempdb..#owt', 'U') IS NOT NULL DROP TABLE #owt; + +CREATE TABLE #owt + ( + session_id INT NOT NULL, + wait_type NVARCHAR(100) NOT NULL, + wait_duration_ms BIGINT NOT NULL, + rd NVARCHAR(100) NOT NULL, + database_num INT NOT NULL, + file_num INT NOT NULL, + page_num INT NOT NULL, + resource_type NVARCHAR(100) NOT NULL + ); + +INSERT INTO #owt + (session_id, + wait_type, + wait_duration_ms, + owt.rd, + database_num, + file_num, + page_num, + resource_type) +SELECT session_id, + owt.wait_type, + owt.wait_duration_ms, + owt.rd, + LEFT(owt.rd, owt.pos1 - 1) AS + database_num, + Substring(owt.rd, owt.pos1 + 1, Len(owt.rd) - ( owt.pos1 + owt.pos2 )) AS + file_num, + RIGHT(owt.rd, owt.pos2 - 1) AS + page_num, + CASE + WHEN RIGHT(owt.rd, owt.pos2 - 1) - 1 % 8088 = 0 THEN 'Is PFS Page' + WHEN RIGHT(owt.rd, owt.pos2 - 1) - 2 % 511232 = 0 THEN 'Is GAM Page' + WHEN RIGHT(owt.rd, owt.pos2 - 1) - 3 % 511232 = 0 THEN 'Is SGAM Page' + ELSE 'Is Not PFS, GAM, or SGAM page' + END AS + resource_type +FROM (SELECT owt.session_id, + owt.wait_type, + owt.wait_duration_ms, + owt.blocking_session_id, + owt.resource_description AS rd, + Charindex(':', owt.resource_description) AS pos1, + Charindex(':', Reverse(owt.resource_description)) AS pos2, + Len(owt.resource_description) AS ln + FROM sys.dm_os_waiting_tasks owt + WHERE owt.wait_type LIKE 'PAGELATCH%') owt + +SELECT * +FROM #owt + +IF EXISTS(SELECT 1 FROM #owt) + BEGIN + SELECT owt.session_id, + owt.wait_type, + owt.wait_duration_ms, + owt.rd, + owt.resource_type, + s.NAME + '.' + o.NAME AS table_name, + i.NAME AS index_name, + obd.page_level, + obd.row_count + FROM sys.dm_os_buffer_descriptors obd + INNER JOIN #owt owt + ON obd.database_id = owt.database_num + AND obd.[file_id] = owt.file_num + AND obd.page_id = owt.page_num + INNER JOIN sys.allocation_units au + ON obd.allocation_unit_id = au.allocation_unit_id + INNER JOIN sys.partitions p + ON au.container_id = p.[partition_id] + INNER JOIN sys.indexes i + ON p.index_id = i.index_id + AND p.[object_id] = i.[object_id] + INNER JOIN sys.objects o + ON i.[object_id] = o.[object_id] + INNER JOIN sys.schemas s + ON o.[schema_id] = s.[schema_id] + OPTION(force ORDER) + END; diff --git a/Scripts/GoogleJobTimeline.sql b/Scripts/GoogleJobTimeline.sql new file mode 100644 index 00000000..a26ae68c --- /dev/null +++ b/Scripts/GoogleJobTimeline.sql @@ -0,0 +1,206 @@ +/* +Author: Theo Ekelmans +Original link: http://www.sqlservercentral.com/articles/Agent+jobs/127346/ +*/ + +--**************************************************************************************** +-- This script returns a (graphical) timeline for all SQL jobs using google graph +--**************************************************************************************** +-- Version: 1.1 +-- Author: Theo Ekelmans +-- Email: theo@ekelmans.com +-- Date: 2015-06-24 + +-- Version: 1.2 +-- Author: Theo Ekelmans +-- Email: theo@ekelmans.com +-- Date: 2015-07-28 +-- Change: Updated using feedback from the SqlServerCentralCommunity +--**************************************************************************************** +set nocount on + +declare @DT datetime +declare @StartDT datetime +declare @EndDT datetime +declare @MinRuntimeInSec int +declare @SendMail int +declare @ReturnRecocordset int +declare @Emailprofilename varchar(50) +declare @EmailRecipients varchar(50) + +--*************************************************************************************** +-- Set variables +--*************************************************************************************** +set @StartDT = getdate() - 1 +set @EndDT = getdate() +set @MinRuntimeInSec = 60 --Ignore jobs with runtime smaller then this + +set @ReturnRecocordset = 0 +set @SendMail = 1 +set @Emailprofilename = '' +set @EmailRecipients = '' + +--*************************************************************************************** +-- Pre-run cleanup (just in case) +--*************************************************************************************** +IF OBJECT_ID('tempdb..#JobRuntime') IS NOT NULL DROP TABLE #JobRuntime; +IF OBJECT_ID('tempdb..##GoogleGraph') IS NOT NULL DROP TABLE ##GoogleGraph; + +--*************************************************************************************** +-- Create a table for HTML assembly +--*************************************************************************************** +create table ##GoogleGraph ([ID] [int] IDENTITY(1,1) NOT NULL, + [HTML] [varchar](8000) NULL) + +--*************************************************************************************** +-- Create the Job Runtime information table +--*************************************************************************************** +select job.name as JobName + ,cat.name as CatName + ,CONVERT(DATETIME, CONVERT(CHAR(8), run_date, 112) + ' ' + STUFF(STUFF(RIGHT('000000' + CONVERT(VARCHAR(8), run_time), 6), 5, 0, ':'), 3, 0, ':'), 120) as SDT + ,dateadd( s, + ((run_duration/10000)%100 * 3600) + ((run_duration/100)%100 * 60) + run_duration%100 , + CONVERT(DATETIME, CONVERT(CHAR(8), run_date, 112) + ' ' + STUFF(STUFF(RIGHT('000000' + CONVERT(VARCHAR(8), run_time), 6), 5, 0, ':'), 3, 0, ':'), 120) + ) as EDT +into #JobRuntime +FROM msdb.dbo.sysjobs job + left JOIN msdb.dbo.sysjobhistory his + ON his.job_id = job.job_id + INNER JOIN msdb.dbo.syscategories cat + ON job.category_id = cat.category_id +where CONVERT(DATETIME, CONVERT(CHAR(8), run_date, 112) + ' ' + STUFF(STUFF(RIGHT('000000' + CONVERT(VARCHAR(8), run_time), 6), 5, 0, ':'), 3, 0, ':'), 120) between @StartDT and @EndDT +and step_id = 0 -- step_id = 0 is the entire job, step_id > 0 is actual step number +and ((run_duration/10000)%100 * 3600) + ((run_duration/100)%100 * 60) + run_duration%100 > @MinRuntimeInSec -- Ignore trivial runtimes +order by SDT + +if not exists (select 1 from #JobRuntime) + goto NothingToDo + +--*************************************************************************************** +-- Format for google graph - Header +-- (Split into multiple inserts because the default text result setting is 256 chars) +--*************************************************************************************** +insert into ##GoogleGraph (HTML) +select ' + + + ' +insert into ##GoogleGraph (HTML) +select ' + + ' + +'' + +'Job timeline on: '+@@servername + +' from '+convert(varchar(20), @StartDT, 120) + +' until '+convert(varchar(20), @EndDT, 120) + +case when @MinRuntimeInSec = 0 then '' else ' (hiding jobs with runtime < '+cast(@MinRuntimeInSec as varchar(10))+' seconds)' end + +' +
+ +' + +--*************************************************************************************** +-- Output HTML page - copy output & paste to a .HTML file and open with google chrome +--*************************************************************************************** +if @ReturnRecocordset = 1 + select html from ##GoogleGraph order by ID + +--*************************************************************************************** +-- Send Email - +--*************************************************************************************** +if @SendMail = 1 + execute msdb.dbo.sp_send_dbmail + @profile_name = @Emailprofilename + ,@recipients = @EmailRecipients + ,@subject = 'JobTimeline' + ,@body = 'See attachment for JobTimeline, open with Google Chrome!' + ,@body_format = 'HTML' -- or TEXT + ,@importance = 'Normal' --Low Normal High + ,@sensitivity = 'Normal' --Normal Personal Private Confidential + ,@execute_query_database = 'master' + ,@query_result_header = 1 + ,@query = 'set nocount on; SELECT HTML FROM ##GoogleGraph' + ,@query_result_no_padding = 1 -- prevent SQL adding padding spaces in the result + --,@query_no_truncate= 1 -- mutually exclusive with @query_result_no_padding + ,@attach_query_result_as_file = 1 + ,@query_attachment_filename= 'JobTimeline.HTML' + + +goto Cleanup + +--*************************************************************************************** +-- Just in case.... +--*************************************************************************************** +NothingToDo: + +print 'No job runtime info found....' + +--*************************************************************************************** +-- Cleanup +--*************************************************************************************** +Cleanup: +IF OBJECT_ID('tempdb..#JobRuntime') IS NOT NULL DROP TABLE #JobRuntime; +IF OBJECT_ID('tempdb..##GoogleGraph') IS NOT NULL DROP TABLE ##GoogleGraph; diff --git a/Scripts/How_old_your_backups.sql b/Scripts/How_old_your_backups.sql new file mode 100644 index 00000000..1842115c --- /dev/null +++ b/Scripts/How_old_your_backups.sql @@ -0,0 +1,38 @@ +/* +Author: Tim Ford +Original link: http://sqlmag.com/database-backup-and-recovery/how-old-are-your-backups +*/ +WITH full_backups AS ( +SELECT ROW_NUMBER() OVER(PARTITION BY BS.database_name, + BS.type + ORDER BY BS.database_name ASC, + BS.backup_finish_date DESC + ) AS [Row Number], + D.name AS [database_name], + BS.backup_set_id, + BS.type AS backup_type, + BS.backup_finish_date, + D.recovery_model_desc +FROM master.sys.databases AS D + LEFT JOIN msdb.dbo.[backupset] AS BS + ON D.name = BS.database_name +/* FILTERING OPTIONS*/ +--WHERE BS.[type] = '' +--WHERE BS.[name] = '' +) +SELECT FB.database_name, + CASE FB.backup_type + WHEN 'D' THEN 'Data' + WHEN 'I' THEN 'Differential' + WHEN 'L' THEN 'Transaction Log' + END AS backup_type_desc, + FB.recovery_model_desc, + FB.backup_finish_date, + BMF.physical_device_name, + DATEDIFF(hour, FB.backup_finish_date, GETDATE()) AS backup_hours, + DATEDIFF(minute, FB.backup_finish_date, GETDATE()) AS backup_minutes +FROM full_backups FB + LEFT JOIN msdb.dbo.[backupset] BS ON FB.backup_set_id = BS.backup_set_id + LEFT JOIN msdb.dbo.backupmediafamily BMF ON BS.media_set_id = BMF.media_set_id + WHERE FB.[Row Number] = 1 +ORDER BY FB.database_name, FB.[Row Number], FB.backup_type; diff --git a/Scripts/How_to_Find_Queries_Using_an_Index.sql b/Scripts/How_to_Find_Queries_Using_an_Index.sql new file mode 100644 index 00000000..1f528488 --- /dev/null +++ b/Scripts/How_to_Find_Queries_Using_an_Index.sql @@ -0,0 +1,122 @@ +/* +Author: Kendra Little +Original link: https://www.littlekendra.com/2017/01/24/how-to-find-queries-using-an-index-and-queries-using-index-hints/ +*/ + +--Search for queries in the execution plan cache +--Simply plug the name of the index you’re looking for into this query. If you have multiple databases with the same index name, +--you’ll need to add additional criteria to get just the database you’re looking for. +SELECT + querystats.plan_handle, + querystats.query_hash, + SUBSTRING(sqltext.text, (querystats.statement_start_offset / 2) + 1, + (CASE querystats.statement_end_offset + WHEN -1 THEN DATALENGTH(sqltext.text) + ELSE querystats.statement_end_offset + END - querystats.statement_start_offset) / 2 + 1) AS sqltext, + querystats.execution_count, + querystats.total_logical_reads, + querystats.total_logical_writes, + querystats.creation_time, + querystats.last_execution_time, + CAST(query_plan AS xml) as plan_xml +FROM sys.dm_exec_query_stats as querystats +CROSS APPLY sys.dm_exec_text_query_plan + (querystats.plan_handle, querystats.statement_start_offset, querystats.statement_end_offset) + as textplan +CROSS APPLY sys.dm_exec_sql_text(querystats.sql_handle) AS sqltext +WHERE + textplan.query_plan like '%PK_Sales_Invoices%' +ORDER BY querystats.last_execution_time DESC +OPTION (RECOMPILE); +GO + + +--Find queries using the index in Query Store +--If you’ve enabled the SQL Server 2016+ Query Store on your databases, you’ve got something better to search than the plan cache +SELECT + qsq.query_id, + qsq.query_hash, + (SELECT TOP 1 qsqt.query_sql_text FROM sys.query_store_query_text qsqt + WHERE qsqt.query_text_id = MAX(qsq.query_text_id)) AS sqltext, + SUM(qrs.count_executions) AS execution_count, + SUM(qrs.count_executions) * AVG(qrs.avg_logical_io_reads) as est_logical_reads, + SUM(qrs.count_executions) * AVG(qrs.avg_logical_io_writes) as est_writes, + MIN(qrs.last_execution_time AT TIME ZONE 'Pacific Standard Time') as min_execution_time_PST, + MAX(qrs.last_execution_time AT TIME ZONE 'Pacific Standard Time') as last_execution_time_PST, + SUM(qsq.count_compiles) AS sum_compiles, + TRY_CONVERT(XML, (SELECT TOP 1 qsp2.query_plan from sys.query_store_plan qsp2 + WHERE qsp2.query_id=qsq.query_id + ORDER BY qsp2.plan_id DESC)) AS query_plan +FROM sys.query_store_query qsq +JOIN sys.query_store_plan qsp on qsq.query_id=qsp.query_id +CROSS APPLY (SELECT TRY_CONVERT(XML, qsp.query_plan) AS query_plan_xml) AS qpx +JOIN sys.query_store_runtime_stats qrs on qsp.plan_id = qrs.plan_id +JOIN sys.query_store_runtime_stats_interval qsrsi on qrs.runtime_stats_interval_id=qsrsi.runtime_stats_interval_id +WHERE + qsp.query_plan like N'%PK_Sales_Invoices%' + AND qsp.query_plan not like '%query_store_runtime_stats%' /* Not a query store query */ + AND qsp.query_plan not like '%dm_exec_sql_text%' /* Not a query searching the plan cache */ +GROUP BY + qsq.query_id, qsq.query_hash +ORDER BY est_logical_reads DESC +OPTION (RECOMPILE); +GO + + +--Search the execution plan cache for index hints +--To find forced indexes in the plan cache, look for plans that contain ‘%ForcedIndex=”1″%’ +SELECT + querystats.plan_handle, + querystats.query_hash, + SUBSTRING(sqltext.text, (querystats.statement_start_offset / 2) + 1, + (CASE querystats.statement_end_offset + WHEN -1 THEN DATALENGTH(sqltext.text) + ELSE querystats.statement_end_offset + END - querystats.statement_start_offset) / 2 + 1) AS sqltext, + querystats.execution_count, + querystats.total_logical_reads, + querystats.total_logical_writes, + querystats.creation_time, + querystats.last_execution_time, + CAST(query_plan AS xml) as plan_xml +FROM sys.dm_exec_query_stats as querystats +CROSS APPLY sys.dm_exec_text_query_plan + (querystats.plan_handle, querystats.statement_start_offset, querystats.statement_end_offset) + as textplan +CROSS APPLY sys.dm_exec_sql_text(querystats.sql_handle) AS sqltext +WHERE + textplan.query_plan like N'%ForcedIndex="1"%' + and UPPER(sqltext.text) like N'%INDEX%' +OPTION (RECOMPILE); +GO + + +--Find index hints in Query Store +--If you’ve enabled the SQL Server 2016+ Query Store on your databases +SELECT + qsq.query_id, + qsq.query_hash, + (SELECT TOP 1 qsqt.query_sql_text FROM sys.query_store_query_text qsqt + WHERE qsqt.query_text_id = MAX(qsq.query_text_id)) AS sqltext, + SUM(qrs.count_executions) AS execution_count, + SUM(qrs.count_executions) * AVG(qrs.avg_logical_io_reads) as est_logical_reads, + SUM(qrs.count_executions) * AVG(qrs.avg_logical_io_writes) as est_writes, + MIN(qrs.last_execution_time AT TIME ZONE 'Pacific Standard Time') as min_execution_time_PST, + MAX(qrs.last_execution_time AT TIME ZONE 'Pacific Standard Time') as last_execution_time_PST, + SUM(qsq.count_compiles) AS sum_compiles, + TRY_CONVERT(XML, (SELECT TOP 1 qsp2.query_plan from sys.query_store_plan qsp2 + WHERE qsp2.query_id=qsq.query_id + ORDER BY qsp2.plan_id DESC)) AS query_plan +FROM sys.query_store_query qsq +JOIN sys.query_store_plan qsp on qsq.query_id=qsp.query_id +CROSS APPLY (SELECT TRY_CONVERT(XML, qsp.query_plan) AS query_plan_xml) AS qpx +JOIN sys.query_store_runtime_stats qrs on qsp.plan_id = qrs.plan_id +JOIN sys.query_store_runtime_stats_interval qsrsi on qrs.runtime_stats_interval_id=qsrsi.runtime_stats_interval_id +WHERE + qsp.query_plan like N'%ForcedIndex="1"%' +GROUP BY + qsq.query_id, qsq.query_hash +ORDER BY est_logical_reads DESC +OPTION (RECOMPILE); +GO diff --git a/Scripts/IN_Memory_Example_2014.sql b/Scripts/IN_Memory_Example_2014.sql new file mode 100644 index 00000000..d7bf8d94 --- /dev/null +++ b/Scripts/IN_Memory_Example_2014.sql @@ -0,0 +1,116 @@ +/* +Author: Konstantin Taranov +Link: https://github.com/ktaranov/sqlserver-kit/blob/master/Scripts/IN_Memory_Example_2014.sql +*/ +USE master; +GO + +DECLARE @databaseFilePath NVARCHAR(1000) = N''; +SELECT @databaseFilePath = SUBSTRING(physical_name, 1, CHARINDEX(N'master.mdf', LOWER(physical_name)) - 1) + FROM master.sys.master_files + WHERE database_id = 1 AND file_id = 1; +DECLARE @databaseName SYSNAME = N'ಠ ಠ 14 Test'; +DECLARE @tsqlStatement NVARCHAR(4000) = N''; +DECLARE @debug BIT = 0; + +SET @tsqlStatement = ' +IF DB_ID(N''@databaseName'') IS NOT NULL +BEGIN + ALTER DATABASE [@databaseName] SET SINGLE_USER WITH ROLLBACK IMMEDIATE; + DROP DATABASE [@databaseName]; +END; + +CREATE DATABASE [@databaseName] + CONTAINMENT = NONE + ON PRIMARY +(NAME = N''@databaseName'', FILENAME = N''@databaseFilePath@databaseName.mdf'', SIZE = 64MB, MAXSIZE = UNLIMITED, FILEGROWTH = 64MB), +FILEGROUP [@databaseName] CONTAINS MEMORY_OPTIMIZED_DATA DEFAULT +( NAME = N''@databaseName_mod'', FILENAME = N''@databaseFilePath@databaseName_mod'', MAXSIZE = UNLIMITED) + LOG ON +( NAME = N''@databaseName_log'', FILENAME = N''@databaseFilePath@databaseName_log.ldf'', SIZE = 64MB, MAXSIZE = 2048MB, FILEGROWTH = 64MB); + +ALTER DATABASE [@databaseName] SET COMPATIBILITY_LEVEL = 120; +'; + +SET @tsqlStatement = REPLACE(@tsqlStatement, '@databaseName', @databaseName); +SET @tsqlStatement = REPLACE(@tsqlStatement, '@databaseFilePath', @databaseFilePath); + +IF @debug = 1 PRINT(@tsqlStatement) +ELSE +EXEC sp_executesql @tsqlStatement; + + +SET @tsqlStatement = ' +USE [@databaseName]; +--UNCOMMENT GO Statement if you want to execute statements after printing in debug mode!!! +--GO + +-- configure recommended DB option +ALTER DATABASE CURRENT SET MEMORY_OPTIMIZED_ELEVATE_TO_SNAPSHOT=ON; + +-- memory-optimized table +CREATE TABLE dbo.table1( + c1 INT IDENTITY PRIMARY KEY NONCLUSTERED, + c2 NVARCHAR(4000) +) +WITH (MEMORY_OPTIMIZED=ON); + +-- non-durable table +CREATE TABLE dbo.temp_table1( + c1 INT IDENTITY PRIMARY KEY NONCLUSTERED, + c2 NVARCHAR(4000) +) +WITH (MEMORY_OPTIMIZED=ON, DURABILITY=SCHEMA_ONLY); + + -- memory-optimized table type +CREATE TYPE dbo.tt_table1 AS TABLE( + c1 INT IDENTITY, + c2 NVARCHAR(4000), + is_transient BIT NOT NULL DEFAULT (0), + INDEX ix_c1 HASH (c1) WITH (BUCKET_COUNT=1024)) +WITH (MEMORY_OPTIMIZED=ON); + +CREATE TABLE dbo.InMemTable1( + keyColumn INT IDENTITY PRIMARY KEY NONCLUSTERED + , description CHAR(100) NOT NULL +) +WITH (MEMORY_OPTIMIZED = ON, DURABILITY = SCHEMA_AND_DATA); + +INSERT dbo.InMemTable1(description) +VALUES + (REPLICATE(''A'', 100)) +,(REPLICATE(''B'', 100)) +,(REPLICATE(''C'', 100)) +,(REPLICATE(''D'', 100)) +,(REPLICATE(''E'', 100)) +,(REPLICATE(''F'', 100)); +'; + +SET @tsqlStatement = REPLACE(@tsqlStatement, '@databaseName', @databaseName); + +IF @debug = 1 PRINT(@tsqlStatement) +ELSE +EXEC sp_executesql @tsqlStatement; + + +-- https://stackoverflow.com/a/793362/2298061 +DECLARE @UseAndExecStatment NVARCHAR(4000); +SET @UseAndExecStatment = N'USE [' + @databaseName + N']; EXEC sp_executesql @tsqlStatement'; + +SET @tsqlStatement = N' +CREATE PROCEDURE dbo.native_sp +WITH NATIVE_COMPILATION, SCHEMABINDING, EXECUTE AS OWNER +AS +BEGIN ATOMIC WITH (TRANSACTION ISOLATION LEVEL = SNAPSHOT, LANGUAGE = N''us_english'') + SELECT keyColumn + , description + FROM dbo.InMemTable1; +END; +--EXECUTE dbo.native_sp;'; + +IF @debug = 1 PRINT(@tsqlStatement) +ELSE +BEGIN +EXEC sp_executesql @UseAndExecStatment, + N'@tsqlStatement NVARCHAR(MAX)', @tsqlStatement = @tsqlStatement; +END; diff --git a/Scripts/IN_Memory_Example_2017.sql b/Scripts/IN_Memory_Example_2017.sql new file mode 100644 index 00000000..bd142197 --- /dev/null +++ b/Scripts/IN_Memory_Example_2017.sql @@ -0,0 +1,196 @@ +/* +Author: Konstantin Taranov +Link: https://github.com/ktaranov/sqlserver-kit/blob/master/Scripts/IN_Memory_Example_2017.sql +*/ +USE master; +GO + +DECLARE @databaseFilePath NVARCHAR(1000) = N''; +SELECT @databaseFilePath = SUBSTRING(physical_name, 1, CHARINDEX(N'master.mdf', LOWER(physical_name)) - 1) + FROM master.sys.master_files + WHERE database_id = 1 AND file_id = 1; + +DECLARE @databaseName SYSNAME = N'1ಠಠಠ 16+ 错误的名字! Wrong Name! गलत नाम! Неправильное название! Nombre incorrecto! Falscher Name! 間違った名前! שם שגוי! Mauvais Nom!1'; +-- To prevent Msg 5135, שםשגוי cannot be used for FILESTREAM files +DECLARE @dbFileName_mod SYSNAME = SUBSTRING(@databaseName, 1, 80) + N'_mod'; +DECLARE @databaseFileName NVARCHAR(1000) = REPLACE(@databaseName, N' ', N''); +DECLARE @tsqlStatement NVARCHAR(4000) = N''; +DECLARE @crlf VARCHAR(10) = CHAR(10) + CHAR(13); +DECLARE @debug BIT = 1; + +SET @tsqlStatement = N' +USE master;' + +CASE WHEN @debug = 1 THEN @crlf + N'GO' + @crlf ELSE N'' END + +N'IF DB_ID(N''@databaseName'') IS NOT NULL +BEGIN + ALTER DATABASE [@databaseName] SET SINGLE_USER WITH ROLLBACK IMMEDIATE; + DROP DATABASE [@databaseName]; +END; + +CREATE DATABASE [@databaseName] + CONTAINMENT = NONE + ON PRIMARY +(NAME = N''@databaseName'', +FILENAME = N''@databaseFilePath@databaseFileName.mdf'', SIZE = 32MB, MAXSIZE = 2048MB, FILEGROWTH = 64MB), +FILEGROUP [@databaseName] CONTAINS MEMORY_OPTIMIZED_DATA DEFAULT +( NAME = N''@databaseName_mod'', FILENAME = N''@databaseFilePath@dbFileName_mod'', MAXSIZE = 2048MB) + LOG ON +( NAME = N''@databaseName_log'', FILENAME = N''@databaseFilePath@databaseFileName_log.ldf'', SIZE = 32MB, MAXSIZE = 2048MB, FILEGROWTH = 64MB); +' + CASE WHEN @debug = 1 THEN @crlf + N'GO' + @crlf ELSE N'' END + +N'IF CAST(SERVERPROPERTY(''ProductMajorVersion'') AS INT) = 14 +ALTER DATABASE [@databaseName] SET COMPATIBILITY_LEVEL = 140; + +IF CAST(SERVERPROPERTY(''ProductMajorVersion'') AS INT) = 13 +ALTER DATABASE [@databaseName] SET COMPATIBILITY_LEVEL = 130;'; + +SET @tsqlStatement = REPLACE(@tsqlStatement, '@databaseName', @databaseName); +SET @tsqlStatement = REPLACE(@tsqlStatement, '@dbFileName_mod', @dbFileName_mod); +SET @tsqlStatement = REPLACE(@tsqlStatement, '@databaseFileName', @databaseFileName); +SET @tsqlStatement = REPLACE(@tsqlStatement, '@databaseFilePath', @databaseFilePath); + +IF @debug = 1 PRINT(@tsqlStatement) +ELSE +EXEC sp_executesql @tsqlStatement; + + +SET @tsqlStatement = N'USE [@databaseName];' + +CASE WHEN @debug = 1 THEN @crlf + N'GO' + @crlf ELSE N'' END + +'-- configure recommended DB option +ALTER DATABASE CURRENT SET MEMORY_OPTIMIZED_ELEVATE_TO_SNAPSHOT=ON; + +-- memory-optimized table +CREATE TABLE dbo.table1 +( c1 INT IDENTITY PRIMARY KEY NONCLUSTERED, + c2 NVARCHAR(MAX)) +WITH (MEMORY_OPTIMIZED=ON); + +-- non-durable table +CREATE TABLE dbo.temp_table1 +( c1 INT IDENTITY PRIMARY KEY NONCLUSTERED, + c2 NVARCHAR(MAX)) +WITH (MEMORY_OPTIMIZED=ON, + DURABILITY=SCHEMA_ONLY); + +-- memory-optimized table type +CREATE TYPE dbo.tt_table1 AS TABLE +( c1 INT IDENTITY, + c2 NVARCHAR(MAX), + is_transient BIT NOT NULL DEFAULT (0), + INDEX ix_c1 HASH (c1) WITH (BUCKET_COUNT=1024)) +WITH (MEMORY_OPTIMIZED=ON); + +CREATE TABLE dbo.InMemTable1( + keyColumn INT IDENTITY PRIMARY KEY NONCLUSTERED + , description CHAR(100) NOT NULL +) +WITH (MEMORY_OPTIMIZED = ON, DURABILITY = SCHEMA_AND_DATA); + +INSERT dbo.InMemTable1 +( +description +) +VALUES + (REPLICATE(''A'', 100)) +,(REPLICATE(''B'', 100)) +,(REPLICATE(''C'', 100)) +,(REPLICATE(''D'', 100)) +,(REPLICATE(''E'', 100)) +,(REPLICATE(''F'', 100)); +'; + +SET @tsqlStatement = REPLACE(@tsqlStatement, '@databaseName', @databaseName); + +IF @debug = 1 PRINT(@tsqlStatement) +ELSE +EXEC sp_executesql @tsqlStatement; + + +-- https://stackoverflow.com/a/793362/2298061 +DECLARE @UseAndExecStatment NVARCHAR(4000); +SET @UseAndExecStatment = N'USE [' + @databaseName + N']; EXEC sp_executesql @tsqlStatement'; + +SET @tsqlStatement = CASE WHEN @debug = 1 THEN @crlf + N'GO' + @crlf ELSE N'' END + +N'-- natively compiled stored procedure +CREATE PROCEDURE dbo.usp_ingest_table1 + @table1 dbo.tt_table1 READONLY +WITH NATIVE_COMPILATION, SCHEMABINDING +AS +BEGIN ATOMIC + WITH (TRANSACTION ISOLATION LEVEL=SNAPSHOT, + LANGUAGE=N''us_english'') + + DECLARE @i INT = 1 + + WHILE @i > 0 + BEGIN + INSERT dbo.table1 + SELECT c2 + FROM @table1 + WHERE c1 = @i AND is_transient=0 + + IF @@ROWCOUNT > 0 + SET @i += 1 + ELSE + BEGIN + INSERT dbo.temp_table1 + SELECT c2 + FROM @table1 + WHERE c1 = @i AND is_transient=1 + + IF @@ROWCOUNT > 0 + SET @i += 1 + ELSE + SET @i = 0 + END + END +END;'; + +IF @debug = 1 PRINT(@tsqlStatement) +ELSE +BEGIN +EXEC sp_executesql @UseAndExecStatment, + N'@tsqlStatement NVARCHAR(MAX)', @tsqlStatement = @tsqlStatement; +END; + + +SET @UseAndExecStatment = N'USE [' + @databaseName + N']; EXEC sp_executesql @tsqlStatement'; +SET @tsqlStatement = CASE WHEN @debug = 1 THEN @crlf + N'GO' + @crlf ELSE N'' END + +N' +CREATE OR ALTER PROCEDURE dbo.native_sp +WITH NATIVE_COMPILATION, SCHEMABINDING, EXECUTE AS OWNER +AS +BEGIN ATOMIC WITH (TRANSACTION ISOLATION LEVEL = SNAPSHOT, LANGUAGE = N''us_english'') +SELECT keyColumn +,description +FROM dbo.InMemTable1; +END;' + CASE WHEN @debug = 1 THEN @crlf + N'GO' + @crlf ELSE N'' END; + +IF @debug = 1 PRINT(@tsqlStatement) +ELSE +BEGIN +EXEC sp_executesql @UseAndExecStatment, + N'@tsqlStatement NVARCHAR(MAX)', @tsqlStatement = @tsqlStatement; +END; + + +SET @UseAndExecStatment = N'USE [' + @databaseName + N']; EXEC sp_executesql @tsqlStatement'; +SET @tsqlStatement = ' +-- sample execution of the proc +DECLARE @table1 dbo.tt_table1; +INSERT @table1 (c2, is_transient) VALUES (N''sample durable'', 0); +INSERT @table1 (c2, is_transient) VALUES (N''sample non-durable'', 1); + +EXECUTE dbo.usp_ingest_table1 @table1=@table1 + +SELECT c1, c2 from dbo.table1 +SELECT c1, c2 from dbo.temp_table1; + +EXECUTE dbo.native_sp; +'; + +IF @debug = 1 PRINT(@tsqlStatement) +ELSE +BEGIN +EXEC sp_executesql @UseAndExecStatment, + N'@tsqlStatement NVARCHAR(MAX)', @tsqlStatement = @tsqlStatement; +END; diff --git a/Scripts/IdentifyObjectNameForCreateAndAlterUsingFn_dblog.sql b/Scripts/IdentifyObjectNameForCreateAndAlterUsingFn_dblog.sql new file mode 100644 index 00000000..e30f480f --- /dev/null +++ b/Scripts/IdentifyObjectNameForCreateAndAlterUsingFn_dblog.sql @@ -0,0 +1,79 @@ +/* +Author: skreebydba +Original link: https://skreebydba.com/2016/08/09/identifying-object-name-for-create-and-alter-using-fn_dblog +*/ + +USE YourDatabase; + +/* Declare local variables and drop temp table if it exists. */ + +IF CHARINDEX('2016',@@VERSION) &gt; 0 +BEGIN + + DROP TABLE IF EXISTS #logrecords; + +END +ELSE +BEGIN + + IF OBJECT_ID('tempdb..#logrecords') IS NOT NULL + BEGIN + + DROP TABLE #logrecords; + + END +END + +/* Declare local variables */ +DECLARE @tranname NVARCHAR(66); +DECLARE @tranid NVARCHAR(28); +DECLARE @loopcount INT = 1; +DECLARE @looplimit INT; + +/* Set @tranname to the value you are looking for + This works for CREATE/ALTER VIEW, CREATE TABLE, and ALTER TABLE + Currently researching other possibilities */ +SELECT @tranname = 'ALTER TABLE'; + +/* Get all log records associated with the transaction name specified + The results contain a row number per transaction, so all occurrences + of the transaction name will be found */ +SELECT ROW_NUMBER() OVER(PARTITION BY [Transaction ID] ORDER BY [Current LSN]) AS Row, + [Current LSN], [Transaction ID], [Transaction Name], operation, Context, AllocUnitName, AllocUnitId, PartitionId, [Lock Information] +INTO #logrecords +FROM fn_dblog(NULL,NULL) +WHERE [Transaction ID] IN + (SELECT [Transaction ID] + FROM fn_dblog(NULL,NULL) + WHERE [Transaction Name] = @tranname); + +SELECT @looplimit = COUNT(*) FROM #logrecords +WHERE [Transaction Name] = @tranname; + +/* The object id for the object affected is contained in the [Lock Information] column of the second log record of the transaction + This WHILE loop finds the second row for each transaction and does lots of string manipulation magic to return the object id + from a string like this: + HoBt 0:ACQUIRE_LOCK_SCH_M OBJECT: 9:146099561:0 + Once it finds it, it returns the object name */ +WHILE @loopcount &lt;= @looplimit +BEGIN + + SELECT TOP 1 @tranid = [Transaction ID] + FROM #logrecords + + DECLARE @lockinfo NVARCHAR(300); + DECLARE @startingposition INT; + DECLARE @endingposition INT; + SELECT @lockinfo = REVERSE([Lock Information]), @startingposition = (CHARINDEX(':',REVERSE([Lock Information])) + 1), @endingposition = CHARINDEX(':',REVERSE([Lock Information]),(CHARINDEX(':',REVERSE([Lock Information])) + 1)) + FROM #logrecords + WHERE Row = 2 + AND [Transaction ID] = @tranid; + + SELECT OBJECT_NAME(REVERSE(SUBSTRING(@lockinfo,(@startingposition),(@endingposition - @startingposition)))) AS ObjectName; + + DELETE FROM #logrecords + WHERE [Transaction ID] = @tranid; + + SELECT @loopcount += 1; + +END diff --git a/Scripts/Identify_All_Logins_With_No_Associated_Default_Database_User.sql b/Scripts/Identify_All_Logins_With_No_Associated_Default_Database_User.sql new file mode 100644 index 00000000..2148cd59 --- /dev/null +++ b/Scripts/Identify_All_Logins_With_No_Associated_Default_Database_User.sql @@ -0,0 +1,76 @@ +/* +Author: Tim Ford +Original link: http://sqlmag.com/security/identifying-sql-server-logins-without-default-database-users +*/ +--============================================================ +--IDENTIFY ALL LOGINS WITH NO ASSOCIATED DEFAULT DATABASE USER +--============================================================ +SET NOCOUNT ON; + +DECLARE @sql_text nvarchar(max); +DECLARE @database_name sysname; + +IF EXISTS(SELECT name FROM tempdb.sys.tables WHERE name LIKE '#default_db_users_table%') + BEGIN + DROP TABLE #default_db_users_table; + END + +CREATE TABLE #default_db_users_table + ( + server_login_name sysname NOT NULL + , database_user_name sysname NOT NULL + , default_database_name sysname NOT NULL + ); + +DECLARE cur_default_databases CURSOR FORWARD_ONLY STATIC FOR --FORWARD_ONLY STATIC CURSOR FOR + SELECT name + FROM sys.databases + ORDER BY name + +OPEN cur_default_databases + +FETCH NEXT FROM cur_default_databases INTO @database_name + +WHILE @@FETCH_STATUS = 0 + BEGIN + + SELECT @sql_text = + 'INSERT INTO #default_db_users_table(server_login_name, database_user_name, default_database_name) + SELECT SP.name AS [server_login_name], DP.name AS [database_user_name], SP.default_database_name + FROM sys.server_principals AS SP + INNER JOIN ' + @database_name + '.sys.database_principals AS DP + ON SP.sid = DP.sid + WHERE SP.default_database_name = ''' + @database_name + ''';' + + EXEC sys.sp_sqlexec @sql_text; + + FETCH NEXT FROM cur_default_databases INTO @database_name + END + +CLOSE cur_default_databases; +DEALLOCATE cur_default_databases; + +--=================================================== +-- LISTING OF LOGINS MISSING USER IN DEFAULT DATABASE +--=================================================== +SELECT SP.name AS login_name + , SP.default_database_name + , 'USE [' + SP.default_database_name + ']; CREATE USER [' + SP.name + '] FOR LOGIN [' + SP.name + '];' AS user_create_stmt +FROM sys.server_principals AS SP + LEFT JOIN #default_db_users_table AS DDUT + ON SP.name = DDUT.server_login_name +WHERE SP.type_desc IN ('SQL_LOGIN', 'WINDOWS_LOGIN') + AND SP.name NOT LIKE 'NT %' + AND SP.name NOT LIKE '##%' + AND SP.default_database_name IS NOT NULL + AND DDUT.server_login_name IS NULL +ORDER BY SP.name; + + +--=================================================== +-- CLEANUP +--=================================================== +IF EXISTS(SELECT name FROM tempdb.sys.tables WHERE name LIKE '#missing_default_db_users_table%') + BEGIN + DROP TABLE #missing_default_db_users_table; + END; diff --git a/Scripts/Identifying_In-Memory_Objects_When_Querying_the_Transaction_Log.sql b/Scripts/Identifying_In-Memory_Objects_When_Querying_the_Transaction_Log.sql new file mode 100644 index 00000000..904b4a51 --- /dev/null +++ b/Scripts/Identifying_In-Memory_Objects_When_Querying_the_Transaction_Log.sql @@ -0,0 +1,33 @@ +/* +Author: Frank Gill +Original link: https://skreebydba.com/2016/07/18/identifying-in-memory-objects-when-querying-the-transaction-log/ +*/ + + +SELECT +f.[Current LSN], +f.Operation, +f.Context, +f.[Transaction ID], +f.operation_desc, +f.tx_end_timestamp, +f.total_size, +OBJECT_NAME(m.object_id) AS ObjectName, +f.newrow_identity, +f.newrow_data, +f.newrow_datasize, +f.oldrow_begin_timestamp, +f.oldrow_identity, +f.oldrow_key_data, +f.oldrow_key_datasize, +f.xtp_description, +f.[Log Record Fixed Length], +f.[Log Record Length], +f.[Flag Bits], +f.[Log Reserve], +f.[Log Record] +FROM fn_dblog_xtp(NULL,NULL) AS f +INNER JOIN sys.memory_optimized_tables_internal_attributes m +ON (f.xtp_object_id - 2147483648) = (m.xtp_object_id + 2147483648) +WHERE Operation LIKE '%HK%'; +GO \ No newline at end of file diff --git a/Scripts/Indexes_Script_Out.sql b/Scripts/Indexes_Script_Out.sql index 4bf8ed47..b912eccb 100644 --- a/Scripts/Indexes_Script_Out.sql +++ b/Scripts/Indexes_Script_Out.sql @@ -1,139 +1,139 @@ -/* -Author: Kendra Little -Original link: http://www.littlekendra.com/2016/05/05/how-to-script-out-indexes-from-sql-server/ -*/ -SELECT - DB_NAME() AS database_name, - sc.name + N'.' + t.name AS table_name, - (SELECT MAX(user_reads) - FROM (VALUES (last_user_seek), (last_user_scan), (last_user_lookup)) AS value(user_reads)) AS last_user_read, - last_user_update, - CASE si.index_id WHEN 0 THEN N'/* No create statement (Heap) */' - ELSE - CASE is_primary_key WHEN 1 THEN - N'ALTER TABLE ' + QUOTENAME(sc.name) + N'.' + QUOTENAME(t.name) + N' ADD CONSTRAINT ' + QUOTENAME(si.name) + N' PRIMARY KEY ' + - CASE WHEN si.index_id > 1 THEN N'NON' ELSE N'' END + N'CLUSTERED ' - ELSE N'CREATE ' + - CASE WHEN si.is_unique = 1 then N'UNIQUE ' ELSE N'' END + - CASE WHEN si.index_id > 1 THEN N'NON' ELSE N'' END + N'CLUSTERED ' + - N'INDEX ' + QUOTENAME(si.name) + N' ON ' + QUOTENAME(sc.name) + N'.' + QUOTENAME(t.name) + N' ' - END + - /* key def */ N'(' + key_definition + N')' + - /* includes */ CASE WHEN include_definition IS NOT NULL THEN - N' INCLUDE (' + include_definition + N')' - ELSE N'' - END + - /* filters */ CASE WHEN filter_definition IS NOT NULL THEN - N' WHERE ' + filter_definition ELSE N'' - END + - /* with clause - compression goes here */ - CASE WHEN row_compression_partition_list IS NOT NULL OR page_compression_partition_list IS NOT NULL - THEN N' WITH (' + - CASE WHEN row_compression_partition_list IS NOT NULL THEN - N'DATA_COMPRESSION = ROW ' + CASE WHEN psc.name IS NULL THEN N'' ELSE + N' ON PARTITIONS (' + row_compression_partition_list + N')' END - ELSE N'' END + - CASE WHEN row_compression_partition_list IS NOT NULL AND page_compression_partition_list IS NOT NULL THEN N', ' ELSE N'' END + - CASE WHEN page_compression_partition_list IS NOT NULL THEN - N'DATA_COMPRESSION = PAGE ' + CASE WHEN psc.name IS NULL THEN N'' ELSE + N' ON PARTITIONS (' + page_compression_partition_list + N')' END - ELSE N'' END - + N')' - ELSE N'' - END + - /* ON where? filegroup? partition scheme? */ - ' ON ' + CASE WHEN psc.name is null - THEN ISNULL(QUOTENAME(fg.name),N'') - ELSE psc.name + N' (' + partitioning_column.column_name + N')' - END - + N';' - END AS index_create_statement, - si.index_id, - si.name AS index_name, - partition_sums.reserved_in_row_GB, - partition_sums.reserved_LOB_GB, - partition_sums.row_count, - stat.user_seeks, - stat.user_scans, - stat.user_lookups, - user_updates AS queries_that_modified, - partition_sums.partition_count, - si.allow_page_locks, - si.allow_row_locks, - si.is_hypothetical, - si.has_filter, - si.fill_factor, - si.is_unique, - ISNULL(pf.name, '/* Not partitioned */') AS partition_function, - ISNULL(psc.name, fg.name) AS partition_scheme_or_filegroup, - t.create_date AS table_created_date, - t.modify_date AS table_modify_date -FROM sys.indexes AS si -JOIN sys.tables AS t ON si.object_id=t.object_id -JOIN sys.schemas AS sc ON t.schema_id=sc.schema_id -LEFT JOIN sys.dm_db_index_usage_stats AS stat ON - stat.database_id = DB_ID() - and si.object_id=stat.object_id - and si.index_id=stat.index_id -LEFT JOIN sys.partition_schemes AS psc ON si.data_space_id=psc.data_space_id -LEFT JOIN sys.partition_functions AS pf ON psc.function_id=pf.function_id -LEFT JOIN sys.filegroups AS fg ON si.data_space_id=fg.data_space_id -/* Key list */ OUTER APPLY ( SELECT STUFF ( - (SELECT N', ' + QUOTENAME(c.name) + - CASE ic.is_descending_key WHEN 1 then N' DESC' ELSE N'' END - FROM sys.index_columns AS ic - JOIN sys.columns AS c ON - ic.column_id=c.column_id - and ic.object_id=c.object_id - WHERE ic.object_id = si.object_id - and ic.index_id=si.index_id - and ic.key_ordinal > 0 - ORDER BY ic.key_ordinal FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'),1,2,'')) AS keys ( key_definition ) -/* Partitioning Ordinal */ OUTER APPLY ( - SELECT MAX(QUOTENAME(c.name)) AS column_name - FROM sys.index_columns AS ic - JOIN sys.columns AS c ON - ic.column_id=c.column_id - and ic.object_id=c.object_id - WHERE ic.object_id = si.object_id - and ic.index_id=si.index_id - and ic.partition_ordinal = 1) AS partitioning_column -/* Include list */ OUTER APPLY ( SELECT STUFF ( - (SELECT N', ' + QUOTENAME(c.name) - FROM sys.index_columns AS ic - JOIN sys.columns AS c ON - ic.column_id=c.column_id - and ic.object_id=c.object_id - WHERE ic.object_id = si.object_id - and ic.index_id=si.index_id - and ic.is_included_column = 1 - ORDER BY c.name FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'),1,2,'')) AS includes ( include_definition ) -/* Partitions */ OUTER APPLY ( - SELECT - COUNT(*) AS partition_count, - CAST(SUM(ps.in_row_reserved_page_count)*8./1024./1024. AS NUMERIC(32,1)) AS reserved_in_row_GB, - CAST(SUM(ps.lob_reserved_page_count)*8./1024./1024. AS NUMERIC(32,1)) AS reserved_LOB_GB, - SUM(ps.row_count) AS row_count - FROM sys.partitions AS p - JOIN sys.dm_db_partition_stats AS ps ON - p.partition_id=ps.partition_id - WHERE p.object_id = si.object_id - and p.index_id=si.index_id - ) AS partition_sums -/* row compression list by partition */ OUTER APPLY ( SELECT STUFF ( - (SELECT N', ' + CAST(p.partition_number AS VARCHAR(32)) - FROM sys.partitions AS p - WHERE p.object_id = si.object_id - and p.index_id=si.index_id - and p.data_compression = 1 - ORDER BY p.partition_number FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'),1,2,'')) AS row_compression_clause ( row_compression_partition_list ) -/* data compression list by partition */ OUTER APPLY ( SELECT STUFF ( - (SELECT N', ' + CAST(p.partition_number AS VARCHAR(32)) - FROM sys.partitions AS p - WHERE p.object_id = si.object_id - and p.index_id=si.index_id - and p.data_compression = 2 - ORDER BY p.partition_number FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'),1,2,'')) AS page_compression_clause ( page_compression_partition_list ) -WHERE - si.type IN (0,1,2) /* heap, clustered, nonclustered */ -ORDER BY table_name, si.index_id - OPTION (RECOMPILE); -GO +/* +Author: Kendra Little +Original link: http://www.littlekendra.com/2016/05/05/how-to-script-out-indexes-from-sql-server/ +*/ +SELECT + DB_NAME() AS database_name, + sc.name + N'.' + t.name AS table_name, + (SELECT MAX(user_reads) + FROM (VALUES (last_user_seek), (last_user_scan), (last_user_lookup)) AS value(user_reads)) AS last_user_read, + last_user_update, + CASE si.index_id WHEN 0 THEN N'/* No create statement (Heap) */' + ELSE + CASE is_primary_key WHEN 1 THEN + N'ALTER TABLE ' + QUOTENAME(sc.name) + N'.' + QUOTENAME(t.name) + N' ADD CONSTRAINT ' + QUOTENAME(si.name) + N' PRIMARY KEY ' + + CASE WHEN si.index_id > 1 THEN N'NON' ELSE N'' END + N'CLUSTERED ' + ELSE N'CREATE ' + + CASE WHEN si.is_unique = 1 then N'UNIQUE ' ELSE N'' END + + CASE WHEN si.index_id > 1 THEN N'NON' ELSE N'' END + N'CLUSTERED ' + + N'INDEX ' + QUOTENAME(si.name) + N' ON ' + QUOTENAME(sc.name) + N'.' + QUOTENAME(t.name) + N' ' + END + + /* key def */ N'(' + key_definition + N')' + + /* includes */ CASE WHEN include_definition IS NOT NULL THEN + N' INCLUDE (' + include_definition + N')' + ELSE N'' + END + + /* filters */ CASE WHEN filter_definition IS NOT NULL THEN + N' WHERE ' + filter_definition ELSE N'' + END + + /* with clause - compression goes here */ + CASE WHEN row_compression_partition_list IS NOT NULL OR page_compression_partition_list IS NOT NULL + THEN N' WITH (' + + CASE WHEN row_compression_partition_list IS NOT NULL THEN + N'DATA_COMPRESSION = ROW ' + CASE WHEN psc.name IS NULL THEN N'' ELSE + N' ON PARTITIONS (' + row_compression_partition_list + N')' END + ELSE N'' END + + CASE WHEN row_compression_partition_list IS NOT NULL AND page_compression_partition_list IS NOT NULL THEN N', ' ELSE N'' END + + CASE WHEN page_compression_partition_list IS NOT NULL THEN + N'DATA_COMPRESSION = PAGE ' + CASE WHEN psc.name IS NULL THEN N'' ELSE + N' ON PARTITIONS (' + page_compression_partition_list + N')' END + ELSE N'' END + + N')' + ELSE N'' + END + + /* ON where? filegroup? partition scheme? */ + ' ON ' + CASE WHEN psc.name is null + THEN ISNULL(QUOTENAME(fg.name),N'') + ELSE psc.name + N' (' + partitioning_column.column_name + N')' + END + + N';' + END AS index_create_statement, + si.index_id, + si.name AS index_name, + partition_sums.reserved_in_row_GB, + partition_sums.reserved_LOB_GB, + partition_sums.row_count, + stat.user_seeks, + stat.user_scans, + stat.user_lookups, + user_updates AS queries_that_modified, + partition_sums.partition_count, + si.allow_page_locks, + si.allow_row_locks, + si.is_hypothetical, + si.has_filter, + si.fill_factor, + si.is_unique, + ISNULL(pf.name, '/* Not partitioned */') AS partition_function, + ISNULL(psc.name, fg.name) AS partition_scheme_or_filegroup, + t.create_date AS table_created_date, + t.modify_date AS table_modify_date +FROM sys.indexes AS si +JOIN sys.tables AS t ON si.object_id=t.object_id +JOIN sys.schemas AS sc ON t.schema_id=sc.schema_id +LEFT JOIN sys.dm_db_index_usage_stats AS stat ON + stat.database_id = DB_ID() + and si.object_id=stat.object_id + and si.index_id=stat.index_id +LEFT JOIN sys.partition_schemes AS psc ON si.data_space_id=psc.data_space_id +LEFT JOIN sys.partition_functions AS pf ON psc.function_id=pf.function_id +LEFT JOIN sys.filegroups AS fg ON si.data_space_id=fg.data_space_id +/* Key list */ OUTER APPLY ( SELECT STUFF ( + (SELECT N', ' + QUOTENAME(c.name) + + CASE ic.is_descending_key WHEN 1 then N' DESC' ELSE N'' END + FROM sys.index_columns AS ic + JOIN sys.columns AS c ON + ic.column_id=c.column_id + and ic.object_id=c.object_id + WHERE ic.object_id = si.object_id + and ic.index_id=si.index_id + and ic.key_ordinal > 0 + ORDER BY ic.key_ordinal FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'),1,2,'')) AS keys ( key_definition ) +/* Partitioning Ordinal */ OUTER APPLY ( + SELECT MAX(QUOTENAME(c.name)) AS column_name + FROM sys.index_columns AS ic + JOIN sys.columns AS c ON + ic.column_id=c.column_id + and ic.object_id=c.object_id + WHERE ic.object_id = si.object_id + and ic.index_id=si.index_id + and ic.partition_ordinal = 1) AS partitioning_column +/* Include list */ OUTER APPLY ( SELECT STUFF ( + (SELECT N', ' + QUOTENAME(c.name) + FROM sys.index_columns AS ic + JOIN sys.columns AS c ON + ic.column_id=c.column_id + and ic.object_id=c.object_id + WHERE ic.object_id = si.object_id + and ic.index_id=si.index_id + and ic.is_included_column = 1 + ORDER BY c.name FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'),1,2,'')) AS includes ( include_definition ) +/* Partitions */ OUTER APPLY ( + SELECT + COUNT(*) AS partition_count, + CAST(SUM(ps.in_row_reserved_page_count)*8./1024./1024. AS NUMERIC(32,1)) AS reserved_in_row_GB, + CAST(SUM(ps.lob_reserved_page_count)*8./1024./1024. AS NUMERIC(32,1)) AS reserved_LOB_GB, + SUM(ps.row_count) AS row_count + FROM sys.partitions AS p + JOIN sys.dm_db_partition_stats AS ps ON + p.partition_id=ps.partition_id + WHERE p.object_id = si.object_id + and p.index_id=si.index_id + ) AS partition_sums +/* row compression list by partition */ OUTER APPLY ( SELECT STUFF ( + (SELECT N', ' + CAST(p.partition_number AS VARCHAR(32)) + FROM sys.partitions AS p + WHERE p.object_id = si.object_id + and p.index_id=si.index_id + and p.data_compression = 1 + ORDER BY p.partition_number FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'),1,2,'')) AS row_compression_clause ( row_compression_partition_list ) +/* data compression list by partition */ OUTER APPLY ( SELECT STUFF ( + (SELECT N', ' + CAST(p.partition_number AS VARCHAR(32)) + FROM sys.partitions AS p + WHERE p.object_id = si.object_id + and p.index_id=si.index_id + and p.data_compression = 2 + ORDER BY p.partition_number FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'),1,2,'')) AS page_compression_clause ( page_compression_partition_list ) +WHERE + si.type IN (0,1,2) /* heap, clustered, nonclustered */ +ORDER BY table_name, si.index_id + OPTION (RECOMPILE); +GO diff --git a/Scripts/LatchStats.sql b/Scripts/LatchStats.sql new file mode 100644 index 00000000..805af19f --- /dev/null +++ b/Scripts/LatchStats.sql @@ -0,0 +1,28 @@ +/* +Author: Paul S. Randal +Original link: http://www.sqlskills.com/blogs/paul/most-common-latch-classes-and-what-they-mean/ +*/ +WITH [Latches] AS + (SELECT + [latch_class], + [wait_time_ms] / 1000.0 AS [WaitS], + [waiting_requests_count] AS [WaitCount], + 100.0 * [wait_time_ms] / SUM ([wait_time_ms]) OVER() AS [Percentage], + ROW_NUMBER() OVER(ORDER BY [wait_time_ms] DESC) AS [RowNum] + FROM sys.dm_os_latch_stats + WHERE [latch_class] NOT IN ( + N'BUFFER') + AND [wait_time_ms] > 0 +) +SELECT + MAX ([W1].[latch_class]) AS [LatchClass], + CAST (MAX ([W1].[WaitS]) AS DECIMAL(14, 2)) AS [Wait_S], + MAX ([W1].[WaitCount]) AS [WaitCount], + CAST (MAX ([W1].[Percentage]) AS DECIMAL(14, 2)) AS [Percentage], + CAST ((MAX ([W1].[WaitS]) / MAX ([W1].[WaitCount])) AS DECIMAL (14, 4)) AS [AvgWait_S] +FROM [Latches] AS [W1] +INNER JOIN [Latches] AS [W2] + ON [W2].[RowNum] <= [W1].[RowNum] +GROUP BY [W1].[RowNum] +HAVING SUM ([W2].[Percentage]) - MAX ([W1].[Percentage]) < 95; -- percentage threshold +GO diff --git a/Scripts/Line_Of_Codes_In_database.sql b/Scripts/Line_Of_Codes_In_database.sql new file mode 100644 index 00000000..4b0bcf74 --- /dev/null +++ b/Scripts/Line_Of_Codes_In_database.sql @@ -0,0 +1,19 @@ +/* +Author: Pinal Dave +Source link: https://blog.sqlauthority.com/2015/06/12/sql-server-how-many-line-of-code-do-you-have-in-database/ +*/ + +SELECT DB_NAME(DB_ID()) AS DBName, + ObjectType, + COUNT(*) AS Object_Count, + SUM(LinesOfCode) AS LinesOfCode +FROM (SELECT s.type AS ObjectType, + LEN(definition)- LEN(REPLACE(definition,CHAR(10),'')) AS LinesOfCode, + OBJECT_NAME(a.object_id) AS NameOfObject + FROM sys.all_sql_modules AS a + INNER JOIN sysobjects AS s + ON a.object_id = s.id + -- AND xtype IN('TR', 'P', 'FN', 'IF', 'TF', 'V') + WHERE OBJECTPROPERTY(a.object_id,'IsMSShipped') = 0 +) SubQuery +GROUP BY ObjectType; diff --git a/Scripts/Listing_SQL_Agent_Jobs_Running_at_a_Specific_Time.sql b/Scripts/Listing_SQL_Agent_Jobs_Running_at_a_Specific_Time.sql new file mode 100644 index 00000000..d2e6dcd0 --- /dev/null +++ b/Scripts/Listing_SQL_Agent_Jobs_Running_at_a_Specific_Time.sql @@ -0,0 +1,23 @@ +/* +Author: Perry Whittle +Original link: http://sqlstudies.com/2013/03/01/script-to-clean-up-windows-logins-no-longer-in-ad/ +*/ + +SELECT * FROM +( + SELECT JobName, RunStart, DATEADD(second, RunSeconds, RunStart) RunEnd, RunSeconds + FROM + ( + SELECT j.name AS 'JobName', + msdb.dbo.agent_datetime(run_date, run_time) AS 'RunStart', + ((jh.run_duration/1000000)*86400) + + (((jh.run_duration-((jh.run_duration/1000000)*1000000))/10000)*3600) + + (((jh.run_duration-((jh.run_duration/10000)*10000))/100)*60) + + (jh.run_duration-(jh.run_duration/100)*100) RunSeconds + FROM msdb.dbo.sysjobs j + INNER JOIN msdb.dbo.sysjobhistory jh ON j.job_id = jh.job_id + WHERE jh.step_id=0 --The Summary Step + ) AS H +) AS H2 +WHERE '2016-05-19 10:16:10' BETWEEN RunStart AND RunEnd +ORDER BY JobName, RunEnd; diff --git a/Scripts/MAXDOP_recommendation.sql b/Scripts/MAXDOP_recommendation.sql new file mode 100644 index 00000000..7fc9f14e --- /dev/null +++ b/Scripts/MAXDOP_recommendation.sql @@ -0,0 +1,97 @@ +/* +Link: https://dba.stackexchange.com/a/36578/107045 +Use coreinfo (utility by sysinternals) as this will give you +a. Logical to Physical Processor Map +b. Logical Processor to Socket Map +c. Logical Processor to NUMA Node Map as below : +Logical to Physical Processor Map: +**---------------------- Physical Processor 0 (Hyperthreaded) +--**-------------------- Physical Processor 1 (Hyperthreaded) +----**------------------ Physical Processor 2 (Hyperthreaded) +------**---------------- Physical Processor 3 (Hyperthreaded) +--------**-------------- Physical Processor 4 (Hyperthreaded) +----------**------------ Physical Processor 5 (Hyperthreaded) +------------**---------- Physical Processor 6 (Hyperthreaded) +--------------**-------- Physical Processor 7 (Hyperthreaded) +----------------**------ Physical Processor 8 (Hyperthreaded) +------------------**---- Physical Processor 9 (Hyperthreaded) +--------------------**-- Physical Processor 10 (Hyperthreaded) +----------------------** Physical Processor 11 (Hyperthreaded) +Logical Processor to Socket Map: +************------------ Socket 0 +------------************ Socket 1 +Logical Processor to NUMA Node Map: +************------------ NUMA Node 0 +------------************ NUMA Node 1 +Now, based on the above info, the Ideal MaxDop setting should be calculated as +a. It has 12 CPU’s which are hyper threaded giving us 24 CPUs. +b. It has 2 NUMA node [Node 0 and 1] each having 12 CPU’s with Hyperthreading ON. +c. Number of sockets are 2 [socket 0 and 1] which are housing 12 CPU’s each. +Considering all above factors, the max degree of Parallelism should be set to 6 which is ideal value for server with above configuration. +So the answer is -- "it depends" on your processor footprint and the NUMA configuration and below table will summarize what I explained above: +8 or less processors ===> 0 to N (where N= no. of processors) +More than 8 processors ===> 8 +NUMA configured ===> MAXDOP should not exceed no of CPU’s assigned to each + NUMA node with max value capped to 8 +Hyper threading Enabled ===> Should not exceed the number of physical processors. +Below is a quick and dirty TSQL script to generate Recommendation for MAXDOP setting + +Author : Kin Shah +Purpose : Recommend MaxDop settings for the server instance +Tested RDBMS : SQL Server 2008R2, 2014, 2016, 2017 */ + +DECLARE @hyperthreadingRatio BIT; +DECLARE @logicalCPUs INT; +DECLARE @HTEnabled INT; +DECLARE @physicalCPU INT; +DECLARE @SOCKET INT; +DECLARE @logicalCPUPerNuma INT; +DECLARE @NoOfNUMA INT; + +SELECT @logicalCPUs = cpu_count -- [Logical CPU Count] + , @hyperthreadingRatio = hyperthread_ratio -- [Hyperthread Ratio] + , @physicalCPU = cpu_count / hyperthread_ratio -- [Physical CPU Count] + , @HTEnabled = CASE + WHEN cpu_count > hyperthread_ratio THEN 1 + ELSE 0 + END -- HTEnabled +FROM sys.dm_os_sys_info +OPTION (recompile); + +SELECT @logicalCPUPerNuma = Count(parent_node_id) +-- [NumberOfLogicalProcessorsPerNuma] +FROM sys.dm_os_schedulers +WHERE [status] = 'VISIBLE ONLINE' + AND parent_node_id < 64 +GROUP BY parent_node_id +OPTION (recompile); + +SELECT @NoOfNUMA = Count(DISTINCT parent_node_id) +FROM sys.dm_os_schedulers -- find NO OF NUMA Nodes +WHERE [status] = 'VISIBLE ONLINE' + AND parent_node_id < 64 + +-- Report the recommendations .... +SELECT +--- 8 or less processors and NO HT enabled +CASE + WHEN @logicalCPUs < 8 + AND @HTEnabled = 0 THEN 'MAXDOP setting should be : ' + + Cast(@logicalCPUs AS VARCHAR(3)) + --- 8 or more processors and NO HT enabled + WHEN @logicalCPUs >= 8 + AND @HTEnabled = 0 THEN 'MAXDOP setting should be : 8' + --- 8 or more processors and HT enabled and NO NUMA + WHEN @logicalCPUs >= 8 + AND @HTEnabled = 1 + AND @NoOfNUMA = 1 THEN 'MaxDop setting should be : ' + + Cast(@logicalCPUPerNuma / @physicalCPU AS + VARCHAR(3)) + --- 8 or more processors and HT enabled and NUMA + WHEN @logicalCPUs >= 8 + AND @HTEnabled = 1 + AND @NoOfNUMA > 1 THEN 'MaxDop setting should be : ' + + Cast(@logicalCPUPerNuma / @physicalCPU AS + VARCHAR(3)) + ELSE '' +END AS Recommendations; diff --git a/Scripts/MaxServerMemoryCalculator.sql b/Scripts/MaxServerMemoryCalculator.sql new file mode 100644 index 00000000..858f4df5 --- /dev/null +++ b/Scripts/MaxServerMemoryCalculator.sql @@ -0,0 +1,162 @@ +/* + Max Server Memory Calculator + https://bornsql.ca/memory/ + Copyright (c) BornSQL.ca + Written by Randolph West, released under the MIT License + Last updated: 9 November 2016 + Based on an original algorithm by Jonathan Kehayias: + https://www.sqlskills.com/blogs/jonathan/how-much-memory-does-my-sql-server-actually-need/ + Max Worker Thread Stack calculation based on Tiger Toolbox Maintenance Solution. + Copyright (c) Microsoft Corporation. All rights reserved. + https://github.com/Microsoft/tigertoolbox/tree/master/MaintenanceSolution + SQL Server, on a standalone instance, requires the following reserved RAM for a server: + - 1 GB of RAM for the OS + - plus 1 GB for each 4 GB of RAM installed from 4 - 16 GB + - plus 1 GB for every 8 GB RAM installed above 16 GB RAM + + Memory for the Thread Stack can also be taken into account: + - 32-bit, reserve 512KB per thread * Max Worker Threads + - 64-bit, reserve 2MB per thread * Max Worker Threads + - 128-bit, reserve 4MB per thread * Max Worker Threads + + Thanks to @sqlEmt and @sqlstudent144 for testing. + Thanks to the Tiger Team for version number and thread stack calculations. +v1.0 - 2016-08-19 - Initial release. +v1.1 - 2016-11-22 - Thread stack reservation; NUMA affinity; new version check. +*/ + +-- Set this to 1 if you want to configure NUMA Node Affinity +DECLARE @configureNumaNodeAffinity BIT = 0; + +DECLARE @physicalMemorySource DECIMAL(20, 4); +DECLARE @physicalMemory DECIMAL(20, 4); +DECLARE @recommendedMemory DECIMAL(20, 4); +DECLARE @overheadMemory DECIMAL(20, 4); + +DECLARE @cpuArchitecture DECIMAL(20, 4); +DECLARE @numaNodes INT; +DECLARE @numaNodesAfinned TINYINT; +DECLARE @maxWorkerThreadCount INT; +DECLARE @threadStack DECIMAL(20, 4); + +SELECT @cpuArchitecture = CASE WHEN @@VERSION LIKE '%%' THEN 2 WHEN @@VERSION LIKE '%%' THEN 4 ELSE 0.5 END FROM sys.dm_os_windows_info WITH (NOLOCK); +SELECT @numaNodes = COUNT(DISTINCT parent_node_id) FROM sys.dm_os_schedulers WHERE scheduler_id < 255 AND parent_node_id < 64; +SELECT @numaNodesAfinned = COUNT (DISTINCT parent_node_id) FROM sys.dm_os_schedulers WHERE scheduler_id < 255 AND parent_node_id < 64 AND is_online = 1; +SELECT @maxWorkerThreadCount = max_workers_count FROM sys.dm_os_sys_info; +SELECT @threadStack = @maxWorkerThreadCount * @cpuArchitecture / 1024.0; + +-- Get physical RAM on server +SELECT @physicalMemorySource = CAST(total_physical_memory_kb AS DECIMAL(20, 4)) / CAST((1024.0) AS DECIMAL(20, 4)) +FROM sys.dm_os_sys_memory; + +-- Convert to nearest GB +SELECT @physicalMemory = CEILING(@physicalMemorySource / CAST(1024.0 AS DECIMAL(20, 4))); + +IF (@physicalMemory <= 2.0) +BEGIN + SELECT @overheadMemory = 0.5; +END; + +IF (@physicalMemory > 2.0 + AND @physicalMemory < 4.0) +BEGIN + SELECT @overheadMemory = 2.0; +END; + +IF (@physicalMemory >= 4.0 + AND @physicalMemory <= 16.0) +BEGIN + SELECT @overheadMemory = 1.0 /* Operating System minimum */ + + (@physicalMemory / 4.0); +END; + +IF (@physicalMemory > 16.0) +BEGIN + SELECT @overheadMemory = 1.0 /* Operating System minimum */ + 4.0 /* add in reserved for <= 16GB */ + + ((@physicalMemory - 16.0) / 8.0); +END; + +-- Add in the Max Worker Threads Overhead +SELECT @overheadMemory = @overheadMemory + @threadStack; + +DECLARE @editionId BIGINT = CAST(SERVERPROPERTY('EditionID') AS BIGINT); +DECLARE @enterprise BIT = 0; +DECLARE @developer BIT = 0; +DECLARE @override BIT = 0; + +IF ( + @editionId IN ( + 1804890536, + 1872460670, + 610778273 + ) + ) +BEGIN + SELECT @enterprise = 1; +END; + +IF (@editionId = - 2117995310) + SELECT @developer = 1; + +-- Check for Standard Edition Limitations +IF ( + @enterprise = 0 + AND @developer = 0 + ) +BEGIN + DECLARE @ProductVersion INT = CONVERT(INT, (@@MICROSOFTVERSION / 0x1000000) & 0xff); + + IF (@ProductVersion >= 11) + AND (@physicalMemory > 128) + BEGIN + SELECT @overheadMemory = 1.0 + 4.0 + ((128 - 16.0) / 8.0); + + -- Set the memory value to the max allowed, if there is enough headroom + IF (@physicalMemory - @overheadMemory >= 128) + SELECT @recommendedMemory = 128, + @overheadMemory = 0, + @override = 1; + END; + + IF (@ProductVersion < 11) + AND (@physicalMemory > 64) + BEGIN + SELECT @overheadMemory = 1.0 + 4.0 + ((64 - 16.0) / 8.0); + + -- Set the memory value to the max allowed, if there is enough headroom + IF (@physicalMemory - @overheadMemory >= 64) + SELECT @recommendedMemory = 64, + @overheadMemory = 0, + @override = 1; + END; +END; + +IF (@override = 0) + SELECT @recommendedMemory = @physicalMemory - @overheadMemory; + +-- Configure NUMA Affinity +IF (@configureNumaNodeAffinity = 1) +BEGIN + SELECT @recommendedMemory = (@recommendedMemory / @numaNodes) * @numaNodesAfinned; +END; + +SELECT @@VERSION AS [Version], + CASE + WHEN (@enterprise = 1) + THEN 'Enterprise Edition' + WHEN (@developer = 1) + THEN 'Developer Edition' + ELSE 'Non-Enterprise Edition' + END AS [Edition], + CAST(@physicalMemorySource AS INT) AS [Physical RAM (MB)], + --CAST(@physicalMemory AS INT) AS [Physical RAM (GB)], + c.[value] AS [Configured Value (MB)], + c.[value_in_use] AS [Running Value (MB)], + CAST(@recommendedMemory * 1024 AS INT) AS [Recommended Value (MB)], + N'EXEC sp_configure ''show advanced options'', 1; RECONFIGURE WITH OVERRIDE; EXEC sp_configure ''max server memory (MB)'', ' + + CAST(CAST(@recommendedMemory * 1024 AS INT) AS NVARCHAR(20)) + + '; EXEC sp_configure ''show advanced options'', 0; RECONFIGURE WITH OVERRIDE;' AS [Script] +FROM sys.configurations c +WHERE [c].[name] = N'max server memory (MB)' +OPTION (RECOMPILE); +GO \ No newline at end of file diff --git a/Scripts/MisleadingSQLServerPerformanceCounters.sql b/Scripts/MisleadingSQLServerPerformanceCounters.sql new file mode 100644 index 00000000..2a76b5c7 --- /dev/null +++ b/Scripts/MisleadingSQLServerPerformanceCounters.sql @@ -0,0 +1,34 @@ +/* +Author: Kendra Little +Original link: https://sqlworkbooks.com/2017/06/top-5-misleading-sql-server-performance-counters +Desctiption: Top 5 Misleading SQL Server Performance Counters +*/ + + +SELECT TOP 20 + (SELECT CAST(SUBSTRING(st.text, (qs.statement_start_offset/2)+1, + ((CASE qs.statement_end_offset + WHEN -1 THEN DATALENGTH(st.text) + ELSE qs.statement_end_offset + END + - qs.statement_start_offset)/2) + 1) AS NVARCHAR(MAX)) FOR XML PATH(''),TYPE) AS [TSQL], + qs.execution_count AS [#], + qs.total_logical_reads as [logical reads], + CASE WHEN execution_count = 0 THEN 0 ELSE + CAST(qs.total_logical_reads / execution_count AS numeric(30,1)) + END AS [avg logical reads], + CAST(qs.total_worker_time/1000./1000. AS numeric(30,1)) AS [cpu sec], + CASE WHEN execution_count = 0 THEN 0 ELSE + CAST(qs.total_worker_time / execution_count / 1000. / 1000. AS numeric(30,1)) + END AS [avg cpu sec], + CAST(qs.total_elapsed_time/1000./1000. AS numeric(30,1)) AS [elapsed sec], + CASE WHEN execution_count = 0 THEN 0 ELSE + CAST(qs.total_elapsed_time / execution_count / 1000. / 1000. AS numeric(30,1)) + END AS [avg elapsed sec], + qp.query_plan AS [query execution plan] +FROM sys.dm_exec_query_stats AS qs +OUTER APPLY sys.dm_exec_sql_text (plan_handle) as st +OUTER APPLY sys.dm_exec_query_plan (plan_handle) AS qp +ORDER BY qs.total_logical_reads DESC +OPTION (RECOMPILE); +GO diff --git a/Scripts/Monitor_Deadlocks_with_Extended_Events.sql b/Scripts/Monitor_Deadlocks_with_Extended_Events.sql new file mode 100644 index 00000000..c7ad7783 --- /dev/null +++ b/Scripts/Monitor_Deadlocks_with_Extended_Events.sql @@ -0,0 +1,60 @@ +/* +Original link: http://michaeljswart.com/2016/01/monitor_deadlocks/ +Author: Michael J. Swart +*/ + +/* +Create The Session + - has five rollover files so that a couple server restarts dont lose any recent deadlock graphs + - uses an asynchronous_file_target which I prefer over the ring buffer + - and it cleans itself up over time. + +*/ +DECLARE @ExtendedEventsTargetPath sysname = 'Change this string to something like "D:\XEvents\Traces"'; +DECLARE @SQL nvarchar(max) = N' +CREATE EVENT SESSION [capture_deadlocks] ON SERVER +ADD EVENT sqlserver.xml_deadlock_report( ACTION(sqlserver.database_name) ) +ADD TARGET package0.asynchronous_file_target( + SET filename = ''' + @ExtendedEventsTargetPath + N'\capture_deadlocks.xel'', + max_file_size = 10, + max_rollover_files = 5) +WITH ( + STARTUP_STATE=ON, + EVENT_RETENTION_MODE=ALLOW_SINGLE_EVENT_LOSS, + MAX_DISPATCH_LATENCY=15 SECONDS, + TRACK_CAUSALITY=OFF + ); + +ALTER EVENT SESSION [capture_deadlocks] ON SERVER + STATE=START'; + +EXEC sp_executesql @SQL; + + +-- Query the Results +DECLARE @filenamePattern sysname; + +SELECT @filenamePattern = REPLACE( CAST(field.value AS sysname), '.xel', '*xel' ) +FROM sys.server_event_sessions AS [session] +JOIN sys.server_event_session_targets AS [target] + ON [session].event_session_id = [target].event_session_id +JOIN sys.server_event_session_fields AS field + ON field.event_session_id = [target].event_session_id + AND field.object_id = [target].target_id +WHERE + field.name = 'filename' + and [session].name= N'capture_deadlocks'; + +SELECT deadlockData.* +FROM sys.fn_xe_file_target_read_file ( @filenamePattern, null, null, null) + as event_file_value +CROSS APPLY ( SELECT CAST(event_file_value.[event_data] as xml) ) + as event_file_value_xml ([xml]) +CROSS APPLY ( + SELECT + event_file_value_xml.[xml].value('(event/@name)[1]', 'varchar(100)') as eventName, + event_file_value_xml.[xml].value('(event/@timestamp)[1]', 'datetime') as eventDate, + event_file_value_xml.[xml].query('//event/data/value/deadlock') as deadlock + ) as deadlockData +WHERE deadlockData.eventName = 'xml_deadlock_report' +ORDER BY eventDate; diff --git a/Scripts/Move_tempdb.sql b/Scripts/Move_tempdb.sql new file mode 100644 index 00000000..06930a0c --- /dev/null +++ b/Scripts/Move_tempdb.sql @@ -0,0 +1,11 @@ +/* +Author: Brent Ozar +Original link: https://www.brentozar.com/archive/2017/11/move-tempdb-another-drive-folder/ +*/ + +SELECT 'ALTER DATABASE tempdb MODIFY FILE (NAME = [' + f.name + '],' + + ' FILENAME = ''Z:\MSSQL\DATA\' + f.name + + CASE WHEN f.type = 1 THEN '.ldf' ELSE '.mdf' END + + ''');' +FROM sys.master_files f +WHERE f.database_id = DB_ID(N'tempdb'); diff --git a/Scripts/New_Default_Database_Assignment_For_Any_Login_Missing_Their_Default_Database.sql b/Scripts/New_Default_Database_Assignment_For_Any_Login_Missing_Their_Default_Database.sql new file mode 100644 index 00000000..dc1b50d0 --- /dev/null +++ b/Scripts/New_Default_Database_Assignment_For_Any_Login_Missing_Their_Default_Database.sql @@ -0,0 +1,89 @@ +/* +Author: Tim Ford +Original link: http://sqlmag.com/database-security/identifying-logins-default-database-connectivity-issues-sql-server +*/ +--============================================================ +--IDENTIFY ALL LOGINS WITH NO ASSOCIATED DEFAULT DATABASE USER +--============================================================ +--------------------------------------------------- +/* +DYNAMICALLY SCRIPT NEW DEFAULT DATABASE ASSIGNMENT +FOR ANY LOGIN MISSING THEIR DEFAULT DATABASE +*/ +--------------------------------------------------- +SET NOCOUNT ON; +DECLARE @sql_text nvarchar(max); +DECLARE @database_name sysname; + +IF EXISTS(SELECT name FROM tempdb.sys.tables WHERE name LIKE '#existing_db_users_table%') + BEGIN + DROP TABLE #existing_db_users_table; + END + +CREATE TABLE #existing_db_users_table + ( + server_login_name sysname NOT NULL + , database_user_name sysname NOT NULL + , default_database_name sysname NOT NULL + ); + +DECLARE cur_default_databases CURSOR FORWARD_ONLY STATIC FOR + SELECT name + FROM sys.databases + ORDER BY name + +OPEN cur_default_databases + +FETCH NEXT FROM cur_default_databases INTO @database_name + +WHILE @@FETCH_STATUS = 0 + BEGIN + + SELECT @sql_text = + 'INSERT INTO #existing_db_users_table(server_login_name, database_user_name, default_database_name) + SELECT SP.name AS [server_login_name], DP.name AS [database_user_name], ' + '''' + @database_name + '''' + + ' FROM sys.server_principals AS SP + INNER JOIN ' + @database_name + '.sys.database_principals AS DP + ON SP.sid = DP.sid + WHERE SP.default_database_name != ''' + @database_name + ''';' + + EXEC sys.sp_sqlexec @sql_text; + + FETCH NEXT FROM cur_default_databases INTO @database_name + END + +CLOSE cur_default_databases; +DEALLOCATE cur_default_databases; + +--=================================================== +-- LISTING OF POTENTIAL DEFAULT DATABASE ASSIGNMENTS +--=================================================== +SELECT SP.name AS login_name + , SP.default_database_name + , DDUT.default_database_name AS potential_default_database_name + , CASE + WHEN DDUT.default_database_name IS NULL THEN 'Login has no other DB user associations.' + ELSE 'ALTER LOGIN [' + SP.name + '] WITH DEFAULT_DATABASE=[' + DDUT.default_database_name + '];' + END AS potential_default_database_command +FROM sys.server_principals AS SP + LEFT JOIN #existing_db_users_table AS DDUT + ON SP.name = DDUT.server_login_name + LEFT JOIN sys.databases AS D + ON SP.default_database_name = D.name +WHERE SP.type_desc IN ('SQL_LOGIN', 'WINDOWS_LOGIN') + AND SP.name NOT LIKE 'NT %' + AND SP.name NOT LIKE '##%' + AND SP.default_database_name IS NOT NULL + --AND DDUT.server_login_name IS NOT NULL + AND D.name IS NULL +ORDER BY SP.name, DDUT.default_database_name; + + +--=================================================== +-- CLEANUP +--=================================================== +IF EXISTS(SELECT name FROM tempdb.sys.tables WHERE name LIKE '#missing_existing_db_users_table%') + BEGIN + DROP TABLE #missing_existing_db_users_table; + END +GO diff --git a/Scripts/Numbers_DATALENGTH.sql b/Scripts/Numbers_DATALENGTH.sql new file mode 100644 index 00000000..277431b6 --- /dev/null +++ b/Scripts/Numbers_DATALENGTH.sql @@ -0,0 +1,13 @@ +SELECT DATALENGTH(CAST(99999999999999999999999999999999999999 AS DECIMAL(38, 0))) AS DECIMAL38 + , DATALENGTH(CAST( 9999999999999999999999999999 AS DECIMAL(28, 0))) AS DECIMAL28 + , DATALENGTH(CAST( 9999999999999999999 AS DECIMAL(19, 0))) AS DECIMAL19 + , DATALENGTH(CAST( 999999999999999 AS DECIMAL(15, 0))) AS DECIMAL15 + , DATALENGTH(CAST( 9223372036854775807 AS BIGINT )) AS [BIGINT] + -- Arithmetic overflow error converting expression to data type bigint. + --, DATALENGTH(CAST( 9223372036854775808 AS BIGINT)) AS [BIGINT] + , DATALENGTH(CAST( 999999999 AS DECIMAL( 9, 0))) AS DECIMAL9 + , DATALENGTH(CAST( 2147483647 AS INT )) AS [INT] + , DATALENGTH(CAST( 32600 AS SMALLINT )) AS [SMALLINT] + , DATALENGTH(CAST( 255 AS TINYINT )) AS [TINYINT] + , DATALENGTH(CAST( 9 AS DECIMAL( 1, 0))) AS DECIMAL1 + , DATALENGTH(POWER(10.0, 37)) AS [Power10^37]; diff --git a/Scripts/ObjectSizes.sql b/Scripts/ObjectSizes.sql new file mode 100644 index 00000000..a1b980cf --- /dev/null +++ b/Scripts/ObjectSizes.sql @@ -0,0 +1,36 @@ +/* +Author: @DBA_ANDY +Original link: http://nebraskasql.blogspot.ru/2017/07/toolbox-which-tables-are-using-all-of.html +Desctiption: Which Tables are Using All of My Space? +*/ + +/* +Object Sizes +Modified from http://stackoverflow.com/questions/15896564/get-table-and-index-storage-size-in-sql-server +*/ +SELECT TOP 50 + @@SERVERNAME as InstanceName + , DB_NAME() as DatabaseName + , s.NAME AS SchemaName + , t.NAME AS TableName + , SUM(p.rows) AS RowCounts + --, SUM(a.total_pages) * 8 AS TotalSpaceKB + , SUM(a.total_pages) * 8/1024.0 AS TotalSpaceMB + , SUM(a.total_pages) * 8/1024.0/1024.0 AS TotalSpaceGB + , SUM(a.used_pages) * 8/1024.0 AS UsedSpaceMB + , (SUM(a.total_pages) - SUM(a.used_pages)) * 8/1024.0 AS UnusedSpaceMB +FROM sys.tables t +INNER JOIN sys.schemas s +ON s.schema_id = t.schema_id +INNER JOIN sys.indexes i +ON t.OBJECT_ID = i.object_id +INNER JOIN sys.partitions p +ON i.object_id = p.OBJECT_ID AND i.index_id = p.index_id +INNER JOIN sys.allocation_units a +ON p.partition_id = a.container_id +WHERE t.NAME NOT LIKE 'dt%' -- filter out system tables for diagramming +AND t.is_ms_shipped = 0 +AND i.OBJECT_ID > 255 +GROUP BY t.Name +, s.Name +ORDER BY TotalSpaceMB DESC diff --git a/Scripts/Overview_HADR_AlwaysOn_Local_Replica_Server.sql b/Scripts/Overview_HADR_AlwaysOn_Local_Replica_Server.sql new file mode 100644 index 00000000..1187f4e4 --- /dev/null +++ b/Scripts/Overview_HADR_AlwaysOn_Local_Replica_Server.sql @@ -0,0 +1,62 @@ +/*================================================================== +Script: HADR Local Replica Overview.sql +Description: This script will display a utilisation overview +of the local Availability Group Replica Server. +The overview will contain amount of databases as +well as total size of databases (DATA, LOG, FILESTREAM) +and is group by ... +1) ... Replica role (PRIMARY / SECONDARY) +2) ... Availability Group +Сreated вфеу: 2018-09-05 +Author: Dominic Wirth +Original link: https://blog.sqlauthority.com/2018/09/11/sql-server-scripts-to-overview-hadr-alwayson-local-replica-server/ +Source link: https://github.com/ktaranov/sqlserver-kit/blob/master/Scripts/Overview_HADR_AlwaysOn_Local_Replica_Server.sql +Modified: 2019-01-29 by Konstantin Taranov +Script Version: 1.1 +SQL Version: SQL Server 2014 or higher +====================================================================*/ + + +-- Load size of databases which are part of an Availability Group +DECLARE @dbSizes TABLE (DatabaseId INT, + DbTotalSizeMB INT, + DbTotalSizeGB DECIMAL(10,2)); +DECLARE @dbId INT, @stmt NVARCHAR(MAX); + +SELECT @dbId = MIN(database_id) +FROM sys.databases +WHERE group_database_id IS NOT NULL; + +WHILE @dbId IS NOT NULL +BEGIN + SELECT @stmt = 'USE [' + DB_NAME(@dbId) + ']; SELECT ' + CAST(@dbId AS NVARCHAR) + ', (SUM([size]) / 128.0), (SUM([size]) / 128.0 / 1024.0) FROM sys.database_files;'; + INSERT INTO @dbSizes + (DatabaseId, DbTotalSizeMB, DbTotalSizeGB) + EXEC (@stmt); + SELECT @dbId = MIN(database_id) + FROM sys.databases + WHERE group_database_id IS NOT NULL AND database_id > @dbId; +END; + +-- Show utilisation overview grouped by replica role +SELECT AR.replica_server_name, DRS.is_primary_replica AS IsPrimaryReplica, COUNT(DB.database_id) AS [Databases] +, SUM(DBS.DbTotalSizeMB) AS SizeOfAllDatabasesMB, SUM(DBS.DbTotalSizeGB) AS SizeOfAllDatabasesGB +FROM sys.dm_hadr_database_replica_states AS DRS + INNER JOIN sys.availability_replicas AS AR ON DRS.replica_id = AR.replica_id + LEFT JOIN sys.databases AS DB ON DRS.group_database_id = DB.group_database_id + LEFT JOIN @dbSizes AS DBS ON DB.database_id = DBS.DatabaseId +WHERE DRS.is_local = 1 +GROUP BY DRS.is_primary_replica, AR.replica_server_name +ORDER BY AR.replica_server_name ASC, DRS.is_primary_replica DESC; + +-- Show utilisation overview grouped by Availability Group +SELECT AR.replica_server_name, DRS.is_primary_replica AS IsPrimaryReplica, AG.[name] AS AvailabilityGroup, COUNT(DB.database_id) AS [Databases] +, SUM(DBS.DbTotalSizeMB) AS SizeOfAllDatabasesMB, SUM(DBS.DbTotalSizeGB) AS SizeOfAllDatabasesGB +FROM sys.dm_hadr_database_replica_states AS DRS + INNER JOIN sys.availability_groups AS AG ON DRS.group_id = AG.group_id + INNER JOIN sys.availability_replicas AS AR ON DRS.replica_id = AR.replica_id + LEFT JOIN sys.databases AS DB ON DRS.group_database_id = DB.group_database_id + LEFT JOIN @dbSizes AS DBS ON DB.database_id = DBS.DatabaseId +WHERE DRS.is_local = 1 +GROUP BY AG.[name], DRS.is_primary_replica, AR.replica_server_name +ORDER BY AG.[name] ASC, AR.replica_server_name ASC; diff --git a/Scripts/Partial_Restore_Demo.sql b/Scripts/Partial_Restore_Demo.sql new file mode 100644 index 00000000..78512e0c --- /dev/null +++ b/Scripts/Partial_Restore_Demo.sql @@ -0,0 +1,147 @@ +use master +GO +CREATE DATABASE AdventureWorks2012 +GO +-- Make sure, the db is in full recovery mode +ALTER DATABASE AdventureWorks2012 SET RECOVERY FULL; +GO +BACKUP DATABASE AdventureWorks2012 TO DISK = 'NUL' +GO +USE AdventureWorks2012; +GO +-- Adds four new filegroups to the AdventureWorks2012 database +ALTER DATABASE AdventureWorks2012 +ADD FILEGROUP test1fg; +GO +ALTER DATABASE AdventureWorks2012 +ADD FILEGROUP test2fg; +GO +ALTER DATABASE AdventureWorks2012 +ADD FILEGROUP test3fg; +GO +ALTER DATABASE AdventureWorks2012 +ADD FILEGROUP test4fg; + +-- Adds one file for each filegroup. +ALTER DATABASE AdventureWorks2012 +ADD FILE +( + NAME = test1dat1, + FILENAME = 'X:\MSSQL\DATA\t1dat1.ndf', + SIZE = 5MB, + MAXSIZE = 100MB, + FILEGROWTH = 5MB +) +TO FILEGROUP test1fg; +ALTER DATABASE AdventureWorks2012 +ADD FILE +( + NAME = test2dat2, + FILENAME = 'X:\MSSQL\DATA\t2dat2.ndf', + SIZE = 5MB, + MAXSIZE = 100MB, + FILEGROWTH = 5MB +) +TO FILEGROUP test2fg; +GO +ALTER DATABASE AdventureWorks2012 +ADD FILE +( + NAME = test3dat3, + FILENAME = 'X:\MSSQL\DATA\t3dat3.ndf', + SIZE = 5MB, + MAXSIZE = 100MB, + FILEGROWTH = 5MB +) +TO FILEGROUP test3fg; +GO +ALTER DATABASE AdventureWorks2012 +ADD FILE +( + NAME = test4dat4, + FILENAME = 'X:\MSSQL\DATA\t4dat4.ndf', + SIZE = 5MB, + MAXSIZE = 100MB, + FILEGROWTH = 5MB +) +TO FILEGROUP test4fg; +GO +-- Creates a partition function called myRangePF1 that will partition a table into four partitions +CREATE PARTITION FUNCTION myRangePF1 (int) + AS RANGE LEFT FOR VALUES (1, 100, 1000) ; +GO +-- Creates a partition scheme called myRangePS1 that applies myRangePF1 to the four filegroups created above +CREATE PARTITION SCHEME myRangePS1 + AS PARTITION myRangePF1 + TO (test1fg, test2fg, test3fg, test4fg) ; +GO +-- Creates a partitioned table called PartitionTable that uses myRangePS1 to partition col1 +CREATE TABLE PartitionTable (col1 int PRIMARY KEY, col2 char(10)) + ON myRangePS1 (col1) ; +GO + +-- Insert some values into each partition +insert into PartitionTable +values (0, 'ska'),(50, 'pop'),(150, 'rap'),(1050, 'rock') +GO + +--Backup of Primary filegroup +BACKUP DATABASE [AdventureWorks2012] FILEGROUP = N'PRIMARY' +TO DISK = N'X:\MSSQL\backup\primary.bak' WITH NOFORMAT, NOINIT, +NAME = N'PrimaryFG Backup', SKIP, NOREWIND, NOUNLOAD, STATS = 10 +GO + +--Backup of FG1 filegroup +BACKUP DATABASE [AdventureWorks2012] FILEGROUP = N'test1fg' +TO DISK = N'X:\MSSQL\backup\test1fg.bak' WITH NOFORMAT, NOINIT, +NAME = N'FG1 Backup', SKIP, NOREWIND, NOUNLOAD, STATS = 10 +GO + +--Backup of FG2 filegroup +BACKUP DATABASE [AdventureWorks2012] FILEGROUP = N'test2fg' +TO DISK = N'X:\MSSQL\backup\test2fg.bak' WITH NOFORMAT, NOINIT, +NAME = N'FG2 Backup', SKIP, NOREWIND, NOUNLOAD, STATS = 10 +GO + +--Backup of FG3 filegroup +BACKUP DATABASE [AdventureWorks2012] FILEGROUP = N'test3fg' +TO DISK = N'X:\MSSQL\backup\test3fg.bak' WITH NOFORMAT, NOINIT, +NAME = N'FG3 Backup', SKIP, NOREWIND, NOUNLOAD, STATS = 10 +GO + +--Backup of FG4 filegroup +BACKUP DATABASE [AdventureWorks2012] FILEGROUP = N'test4fg' +TO DISK = N'X:\MSSQL\backup\test4fg.bak' WITH NOFORMAT, NOINIT, +NAME = N'FG4 Backup', SKIP, NOREWIND, NOUNLOAD, STATS = 10 +GO + +-- We have to take log backup, or else we will not be able to finish restore +BACKUP LOG [AdventureWorks2012] TO DISK = N'X:\MSSQL\backup\aw2012_log.trn' WITH NOFORMAT, NOINIT, NAME = N'AdventureWorks2012-Transaction Log Backup', SKIP, NOREWIND, NOUNLOAD, STATS = 10 +GO + +-- Restore our backups of only primary FG into new database with NORECOVERY +RESTORE DATABASE TestDB FILEGROUP='Primary' FROM DISK = N'X:\MSSQL\backup\primary.bak' +WITH +MOVE 'AdventureWorks2012' TO 'X:\MSSQL\DATA\AdventureWorks2012Copy_Data.mdf', +MOVE 'AdventureWorks2012_Log' TO 'X:\MSSQL\DATA\AdventureWorks2012Copy_Log.ldf', NORECOVERY, +PARTIAL +GO + +-- Restore additional FG with NORECOVERY +RESTORE DATABASE TestDB FILEGROUP='test1fg' FROM DISK = N'X:\MSSQL\backup\test1fg.bak' +WITH +MOVE 'test1dat1' TO 'X:\MSSQL\DATA\test1dat1_copy.ndf', NORECOVERY +GO + +-- After restoring all required FGs, restore the log backup WITH RECOVERY +restore log TestDB FROM DISK = 'X:\MSSQL\backup\aw2012_log.trn' +GO + + +-- Lets have a look at the cintents of partially restored table. It gives an error, but still shows the rows from range residing in FG we have restored. +use TestDB +GO +select * from PartitionTable + +-- This select doesn't cause any errors, because we have limited output to the boundary of our partition. +select * from PartitionTable where col1 <= 1 \ No newline at end of file diff --git a/Scripts/PowerSavingCheck.sql b/Scripts/PowerSavingCheck.sql new file mode 100644 index 00000000..9527a051 --- /dev/null +++ b/Scripts/PowerSavingCheck.sql @@ -0,0 +1,51 @@ +/* +Author: bornsql +Original link: https://github.com/bornsql/scripts/blob/master/power_saving_check.sql +Desctiption: Create power saving check +*/ + +DECLARE @isCmdShellEnabled BIT; +DECLARE @isShowAdvanced BIT; + +SELECT + @isCmdShellEnabled = CAST(value AS BIT) +FROM + sys.configurations +WHERE + name = 'xp_cmdshell'; + +SELECT + @isShowAdvanced = CAST(value AS BIT) +FROM + sys.configurations +WHERE + name = 'show advanced options'; + +IF (@isShowAdvanced = 0) +BEGIN + EXEC sp_configure 'show advanced options', 1; + RECONFIGURE; +END; + +IF (@isCmdShellEnabled = 0) +BEGIN + EXEC sp_configure 'xp_cmdshell', 1; + RECONFIGURE; +END; + +--Run xp_cmdshell to get power settings +EXEC xp_cmdshell 'powercfg /list'; + +--Turn off 'xp_cmdshell' +IF (@isCmdShellEnabled = 0) +BEGIN + EXEC sp_configure 'xp_cmdshell', 0; + RECONFIGURE; +END; + +--Turn off 'show advanced options' +IF (@isShowAdvanced = 0) +BEGIN + EXEC sp_configure 'show advanced options', 0; + RECONFIGURE; +END; \ No newline at end of file diff --git a/Scripts/Queries_vulnerable_to_SQL_injection.sql b/Scripts/Queries_vulnerable_to_SQL_injection.sql new file mode 100644 index 00000000..85c6de3b --- /dev/null +++ b/Scripts/Queries_vulnerable_to_SQL_injection.sql @@ -0,0 +1,24 @@ +/* +Author: Bert Wagner +Source link: https://blog.bertwagner.com/warning-are-your-queries-vulnerable-to-sql-injection-db914fb39668 +*/ + +SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; + +SELECT + ROUTINE_CATALOG + , ROUTINE_SCHEMA + , ROUTINE_NAME + , ROUTINE_TYPE + , ROUTINE_DEFINITION +FROM + INFORMATION_SCHEMA.ROUTINES +WHERE + REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(ROUTINE_DEFINITION,CHAR(0),''),CHAR(9),''),CHAR(10),''),CHAR(11),''),CHAR(12),''),CHAR(13),''),CHAR(14),''),CHAR(160),''),' ','') + LIKE '%+@%' + AND + ( -- Only if executes a dynamic string + ROUTINE_DEFINITION LIKE '%EXEC(%' + OR ROUTINE_DEFINITION LIKE '%EXECUTE%' + OR ROUTINE_DEFINITION LIKE '%sp_executesql%' + ); diff --git a/Scripts/Queries_with_parallelism.sql b/Scripts/Queries_with_parallelism.sql new file mode 100644 index 00000000..6f723b41 --- /dev/null +++ b/Scripts/Queries_with_parallelism.sql @@ -0,0 +1,41 @@ +/* +Author: Eitan Blumin +Source link: http://www.madeiradata.com/cost-threshold-for-parallelism-and-how-to-increase-it-properly/ +*/ + +DECLARE + @MinUseCount INT = 50 -- Set minimum usecount to ignore rarely-used plans + , @CurrentCostThreshold FLOAT = 5 -- Serves as minimum sub-tree cost + , @MaxSubTreeCost FLOAT = 30 -- Set the maximum sub-tree cost, plans with higher cost than this wouldn't normally interest us + +SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; + +SELECT @CurrentCostThreshold = CONVERT(FLOAT, value_in_use) +FROM sys.configurations +WHERE [name] = 'cost threshold for parallelism'; + +WITH XMLNAMESPACES +(DEFAULT 'http://schemas.microsoft.com/sqlserver/2004/07/showplan') +SELECT * +FROM +( +SELECT + ecp.plan_handle, + CompleteQueryPlan = query_plan, + StatementText = n.value('(@StatementText)[1]', 'VARCHAR(4000)'), + StatementSubTreeCost = n.value('(@StatementSubTreeCost)[1]', 'VARCHAR(128)'), + ParallelSubTreeXML = n.query('.'), + ecp.usecounts, + ecp.size_in_bytes, + RankPerText = ROW_NUMBER() OVER (PARTITION BY n.value('(@StatementText)[1]', 'VARCHAR(4000)') ORDER BY ecp.usecounts DESC) +FROM sys.dm_exec_cached_plans AS ecp +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS eqp +CROSS APPLY query_plan.nodes('/ShowPlanXML/BatchSequence/Batch/Statements/StmtSimple') AS qn(n) +WHERE n.query('.').exist('//RelOp[@PhysicalOp="Parallelism"]') = 1 +AND ecp.usecounts > @MinUseCount +AND n.value('(@StatementSubTreeCost)[1]', 'float') BETWEEN @CurrentCostThreshold AND @MaxSubTreeCost +) AS Q +WHERE + RankPerText = 1 -- This would filter out duplicate statements, returning only those with the highest usecount +ORDER BY + usecounts DESC; diff --git a/Scripts/QueryActiveDirectory.sql b/Scripts/QueryActiveDirectory.sql index e4d25dca..6c611047 100644 --- a/Scripts/QueryActiveDirectory.sql +++ b/Scripts/QueryActiveDirectory.sql @@ -1,43 +1,43 @@ -/* -Author: Ryan Adams -Original link: http://www.ryanjadams.com/2016/03/query-active-directory-sql-server/ -*/ - ---There are 2 ways to query AD from SQL Server.&nbsp; The first is using OPENROWSET and the second is using OPENQUERY which requires a linked server. - -/*** OPENROWSET METHOD ***/ ---You have to enable Ad Hoc Distributed Queries to use OPENROWSET.&nbsp; Note the OPENQUERY does NOT require this to be enabled since it uses Linked servers. - -sp_configure 'show advanced options', 1; -RECONFIGURE; -GO -sp_configure 'Ad Hoc Distributed Queries', 1; -RECONFIGURE; -GO -sp_configure 'show advanced options', 0; -RECONFIGURE; -GO - -SELECT DisplayName -FROM OPENROWSET('ADSDSOOBJECT','adsdatasource','SELECT displayName -FROM ''LDAP://mydomainFQDN.com/ou=mySubOU,ou=myTopOU,dc=mychilddomain,dc=myTLdomain,dc=com'' -WHERE objectClass =&nbsp;''User'' ') - -/*** OPENQUERY METHOD ***/ ---Here is where we create our Linked Server connection to AD -EXEC master.dbo.sp_addlinkedserver @server = N'AD', @srvproduct=N'Active Directory Services Interface', @provider=N'ADsDSOObject', @datasrc=N'adsdatasource' -GO - -EXEC master.dbo.sp_addlinkedsrvlogin @rmtsrvname = N'AD', @locallogin = NULL , @useself = N'True' -GO - ---Here is the query using the above created Linked server -SELECT displayName FROM OpenQuery (AD, -'SELECT displayName -FROM ''LDAP://mydomainFQDN.com/ou=mySubOU,ou=myTopOU,dc=mychilddomain,dc=myTLdomain,dc=com'' -WHERE objectClass =&nbsp;''User'' ') -GO - ---Here we delete our Linked Server -EXEC master.dbo.sp_dropserver @server=N'AD', @droplogins='droplogins' -GO +/* +Author: Ryan Adams +Original link: http://www.ryanjadams.com/2016/03/query-active-directory-sql-server/ +*/ + +--There are 2 ways to query AD from SQL Server.&nbsp; The first is using OPENROWSET and the second is using OPENQUERY which requires a linked server. + +/*** OPENROWSET METHOD ***/ +--You have to enable Ad Hoc Distributed Queries to use OPENROWSET.&nbsp; Note the OPENQUERY does NOT require this to be enabled since it uses Linked servers. + +sp_configure 'show advanced options', 1; +RECONFIGURE; +GO +sp_configure 'Ad Hoc Distributed Queries', 1; +RECONFIGURE; +GO +sp_configure 'show advanced options', 0; +RECONFIGURE; +GO + +SELECT DisplayName +FROM OPENROWSET('ADSDSOOBJECT','adsdatasource','SELECT displayName +FROM ''LDAP://mydomainFQDN.com/ou=mySubOU,ou=myTopOU,dc=mychilddomain,dc=myTLdomain,dc=com'' +WHERE objectClass =&nbsp;''User'' ') + +/*** OPENQUERY METHOD ***/ +--Here is where we create our Linked Server connection to AD +EXEC master.dbo.sp_addlinkedserver @server = N'AD', @srvproduct=N'Active Directory Services Interface', @provider=N'ADsDSOObject', @datasrc=N'adsdatasource' +GO + +EXEC master.dbo.sp_addlinkedsrvlogin @rmtsrvname = N'AD', @locallogin = NULL , @useself = N'True' +GO + +--Here is the query using the above created Linked server +SELECT displayName FROM OpenQuery (AD, +'SELECT displayName +FROM ''LDAP://mydomainFQDN.com/ou=mySubOU,ou=myTopOU,dc=mychilddomain,dc=myTLdomain,dc=com'' +WHERE objectClass =&nbsp;''User'' ') +GO + +--Here we delete our Linked Server +EXEC master.dbo.sp_dropserver @server=N'AD', @droplogins='droplogins' +GO diff --git a/Scripts/README.md b/Scripts/README.md index 7186281e..32eea1bf 100644 --- a/Scripts/README.md +++ b/Scripts/README.md @@ -1,103 +1,3 @@ # Usefull SQL Server Scripts - -## [SQL Server 2016 Diagnostic Information Queries](SQL Server 2016 Diagnostic Information Queries.sql) -Author: Glenn Alan Berry
-Original link: http://www.sqlskills.com/blogs/glenn/sql-server-diagnostic-information-queries-for-april-2016/
-Tested on SQL Server version: 2016 - - -## [SQL Server 2012 Diagnostic Information Queries](SQL Server 2012 Diagnostic Information Queries.sql) -Author: Glenn Alan Berry
-Original link: http://www.sqlskills.com/blogs/glenn/sql-server-diagnostic-information-queries-for-april-2016/
-Tested on SQL Server version: 2012 - - -## [SQL Server 2008 R2 Diagnostic Information Queries](SQL Server 2008 R2 Diagnostic Information Queries.sql) -Author: Glenn Alan Berry
-Original link: http://www.sqlskills.com/blogs/glenn/sql-server-diagnostic-information-queries-for-april-2016/
-Tested on SQL Server version: 2008 - - -## [SQL Server 2008 Diagnostic Information Queries](SQL Server 2008 Diagnostic Information Queries.sql) -Author: Glenn Alan Berry
-Original link: http://www.sqlskills.com/blogs/glenn/sql-server-diagnostic-information-queries-for-april-2016/
-Tested on SQL Server version: 2008 - - -## [SQL Server 2014 Diagnostic Information Queries](SQL Server 2014 Diagnostic Information Queries.sql) -Author: Glenn Alan Berry
-Original link: http://www.sqlskills.com/blogs/glenn/sql-server-diagnostic-information-queries-for-april-2016/
-Tested on SQL Server version: 2014 - - -## [SQL Server 2005 Diagnostic Information Queries](SQL Server 2005 Diagnostic Information Queries.sql) -Author: Glenn Alan Berry
-Original link: http://www.sqlskills.com/blogs/glenn/sql-server-diagnostic-information-queries-for-april-2016/
-Tested on SQL Server version: 2005 - - -## [Auto generate SQL Server restore script from backup files in a directory](Generate_Restore_Script_From_Backup_Folder.sql) -Author: Greg Robidoux
-Original link: https://www.mssqltips.com/sqlservertip/1584/auto-generate-sql-server-restore-script-from-backup-files-in-a-directory/ -Tested on SQL Server version: 2008/2012/2014/2016 - - -## [CPU Utilization Graphical form](CPU_Utilization_Graphical_form.sql) -Author: Slava Murygin
-Original link: http://slavasql.blogspot.ru/2016/03/sql-server-cpu-utilization-in-graphical.html
-Tested on SQL Server version: 2012/2014 - - -## [CPU Utilization](CPU_Utilization.sql) -Author: Benjamin Nevarez
-Original link: http://sqlblog.com/blogs/ben_nevarez/archive/2009/07/26/getting-cpu-utilization-data-from-sql-server.aspx
-Tested on SQL Server version: 2014 - - -## [Restore script for Ola Hallengren backup](Restore_script_for_Ola_Hallengren_backup.sql) -Author: Joe O'Connor
-Original link: http://www.sqlservercentral.com/scripts/Restore/140540/
-Tested on SQL Server version: 2014 - - -## [Search Script](Search_Script.sql) -Author: Ed Pollack
-Original link: http://www.sqlshack.com/searching-sql-server-made-easy-building-the-perfect-search-script/
-Tested on SQL Server version: 2014 - - -## [Table count alternative](Table Count alternative.sql) -Author: Jes Schultz Borland
-Original link: http://www.brentozar.com/archive/2014/02/count-number-rows-table-sql-server/
-Tested on SQL Server version: 2008/2012/2014/2016 - - -## [Foreign Key batch rename](Foreign Key batch rename.sql) -Author: Wes Henriksen
-Original link: http://www.brentozar.com/archive/2014/02/count-number-rows-table-sql-server/
-Tested on SQL Server version: 2008/2012/2014 - - -## [Count character matches](Count character matches.sql) -Author: Sean Smith
-Original link: http://www.sqlservercentral.com/scripts/Date/68389/
-Tested on SQL Server version: 2008/2012/2014 - - -## [Index Breakdown](Index Breakdown.sql) -Author: Sean Smith
-Original link: http://www.sqlservercentral.com/scripts/Indexing/104395/
-Tested on SQL Server version: 2014 - - -## [Indexes Script Out](Indexes_Script_Out.sql) -Author: Kendra Little
-Original link: http://www.littlekendra.com/2016/05/05/how-to-script-out-indexes-from-sql-server/
-Tested on SQL Server version: 2012/2014 - - -## [Query Active Directory](QueryActiveDirectory.sql) -Author: Ryan Adams
-Original link: http://www.ryanjadams.com/2016/03/query-active-directory-sql-server/
-Tested on SQL Server version: 2014 +More than 100 useful scripts for SQL Server diff --git a/Scripts/RenameDefaultConstraints.sql b/Scripts/RenameDefaultConstraints.sql new file mode 100644 index 00000000..2330a2ad --- /dev/null +++ b/Scripts/RenameDefaultConstraints.sql @@ -0,0 +1,47 @@ +/* +Author: Bill Fellows +Original link: http://billfellows.blogspot.ru/2017/06/rename-default-constraints.html +*/ +-- Rename default constraints + +DECLARE @query nvarchar(4000); +DECLARE + CSR CURSOR +FAST_FORWARD +FOR +SELECT + CONCAT('ALTER TABLE ', QUOTENAME(S.name), '.', QUOTENAME(T.name), ' DROP CONSTRAINT [', DC.name, '];', CHAR(10) + , 'ALTER TABLE ', QUOTENAME(S.name), '.', QUOTENAME(T.name) + , ' ADD CONSTRAINT [', 'DF__', (S.name), '_', (T.name), '_', C.name, ']' + , ' DEFAULT ', DC.definition, ' FOR ', QUOTENAME(C.name)) AS Query +FROM + sys.schemas AS S + INNER JOIN + sys.tables AS T + ON T.schema_id = S.schema_id + INNER JOIN + sys.columns AS C + ON C.object_id = T.object_id + INNER JOIN + sys.default_constraints AS DC + ON DC.parent_object_id = T.object_id + AND DC.object_id = C.default_object_id +WHERE + DC.name LIKE 'DF__%' + AND DC.name <> CONCAT('DF__', (S.name), '_', (T.name), '_', C.name); + +OPEN CSR +FETCH NEXT FROM CSR INTO @query; +WHILE @@FETCH_STATUS = 0 +BEGIN + BEGIN TRY + EXECUTE sys.sp_executesql @query, N''; + END TRY + BEGIN CATCH + PRINT ERROR_MESSAGE() + PRINT @query; + END CATCH + FETCH NEXT FROM CSR INTO @query; +END +CLOSE CSR; +DEALLOCATE CSR; \ No newline at end of file diff --git a/Scripts/Restore_Database_Dynamic_SQL.sql b/Scripts/Restore_Database_Dynamic_SQL.sql new file mode 100644 index 00000000..e936d5b6 --- /dev/null +++ b/Scripts/Restore_Database_Dynamic_SQL.sql @@ -0,0 +1,21 @@ +USE master; +GO + +DECLARE @restoreStatement NVARCHAR(4000) = N''; +DECLARE @databaseName SYSNAME = N'AdventureWorks2014'; +DECLARE @backupFilePath NVARCHAR(2000) = N'G:\YaDisk\Backup\Distrib\SQL Server\Sample_Database\AdventureWorks\' + @databaseName + N'.bak'; +DECLARE @serverPath NVARCHAR(2000) = N'K:\MSSQL\MSSQL14.MSSQLSERVER\MSSQL\DATA\'; +DECLARE @debug BIT = 1; + +SET @restoreStatement = N' +RESTORE DATABASE [@databaseName] FROM DISK = N''@backupFilePath'' +WITH FILE = 1, MOVE N''@databaseName_Data'' TO N''@serverPath@databaseName_Data.mdf'', +MOVE N''@databaseName_Log'' TO N''@serverPath@databaseName_Log.ldf'', NOUNLOAD, STATS = 5'; +SET @restoreStatement = REPLACE(@restoreStatement, '@databaseName', @databaseName); +SET @restoreStatement = REPLACE(@restoreStatement, '@backupFilePath', @backupFilePath); +SET @restoreStatement = REPLACE(@restoreStatement, '@serverPath', @serverPath); + +IF @debug = 1 PRINT(@restoreStatement) +ELSE +EXEC sp_executesql @restoreStatement; +GO diff --git a/Scripts/Restore_script_for_Ola_Hallengren_backup.sql b/Scripts/Restore_script_for_Ola_Hallengren_backup.sql index 9773e6f7..7406a755 100644 --- a/Scripts/Restore_script_for_Ola_Hallengren_backup.sql +++ b/Scripts/Restore_script_for_Ola_Hallengren_backup.sql @@ -1,218 +1,218 @@ -/* -Author: Joe O'Connor -Original link: http://www.sqlservercentral.com/scripts/Restore/140540/ -*/ - -/* -Description: -T-SQL Script to generate a restore script for a database backed up to disk using Ola Hallengren's -maintenance solution. The script is based solely on the contents of a directory, taking into -account the order of full backups, differential backups and transaction log backups. - -Maintenance Script Credit: Ola Hallengren -https://ola.hallengren.com/ - -Original Restore Script Credit: Greg Robidoux -https://www.mssqltips.com/sqlservertip/1584/auto-generate-sql-server-restore-script-from-backup-files-in-a-directory/ - -Modified Restore Script Credit: Jason Carter -http://jason-carter.net/professional/restore-script-from-backup-directory-modified.html - -Reason for change: -Ola's script uses a .BAK extension for differentials, and stores FULL, DIFF and LOG backups in a sub-folder -heirarchy that matches @backupPath\@@SERVERNAME\@dbName\[FULL|DIFF|LOG]\ and the filename also contains what -type of backup file it is within the filename, making filename comparison for order of restore impossible. - -ChangeLog: - 2/24/2016 - Joe O'Connor (thirtybird@gmail.com) -Allow backup paths to have spaces in them by encapsulating path in the command in quotes -Fixed DIR command - /O D to /O:D to guarantee order by date to ensure transaction logs are restored in proper order -Added wrapper to enable and disable xp_cmdshell and re-set the "show advanced options" setting to whatever it was - If you have xp_cmdshell enabled in your environment, take this part out or it will get disabled! -Took out extra @backupPath in each RESTORE command - the full path is output into the file list and was duplicated in the output -Added backupTime to the local table variable to be used for comparison as comparing filenames doesn't work with Ola's filenames - This involves substring parsing (and is ugly). - - 2/25/2016 - Joe O'Connor (thirtybird@gmail.com) -Added logic to check to see if xp_cmdshell needs to be enabled or not. Only enables and disables if it needs to. -Verified it does not disable xp_cmdshell if it was enabled to start with. - - 3/16/2016 - Joe O'Connor (thirtybird@gmail.com) -Added a RESTORE FILELISTONLY as the first output command. - - 4/20/2016 - Joe O'Connor (thirtybird@gmail.com) -Converted code to utilize xp_dirtree instead of xp_cmdshell -Re-ordered some code to get the variables that need to be set closer to the top of the script -Fixed problem with compatibility with named instances (replacing '\' with '$' in @@SERVERNAME) - -Tested against: SQL 2005 - 2014 -*/ - -USE Master; -GO -SET NOCOUNT ON - -/** - Variable declaration -**/ -DECLARE @dbName sysname -DECLARE @backupPath NVARCHAR(500) - -/** - Initialize variables -**/ -SET @dbName = 'Test' -SET @backupPath = 'Y:\Microsoft SQL Server\Backup' - - -/** - Convert the variables to match that of Olas maintenance script -**/ -IF RIGHT (@backupPath,1) = '\' SET @backupPath = SUBSTRING (@backupPath, 1, LEN (@backupPath)-1) -SET @backupPath = @backupPath + '\' + REPLACE(@@SERVERNAME,'\','$') + '\' + @dbName + '\' - - -/** - Get List of Files -**/ -IF OBJECT_ID('tempdb..#DirectoryTree')IS NOT NULL - DROP TABLE #DirectoryTree; - -CREATE TABLE #DirectoryTree ( - backupFile nvarchar(255) NOT NULL - , depth int - , isfile bit - , backupTime NVARCHAR(20)); - - -/** - Create a clustered index to keep everything in order by filename. -**/ -ALTER TABLE #DirectoryTree -ADD CONSTRAINT PK_DirectoryTree PRIMARY KEY CLUSTERED (backupFile); - -INSERT #DirectoryTree (backupFile,depth,isfile) -EXEC xp_dirtree @backupPath,2,1; - - -/** - Get rid of the directories -**/ -DELETE FROM #DirectoryTree WHERE isfile=0 - - -/** - Figure out the backup time for comparison since file names cannot be compare as all DIFF and LOG backups will be > the full - Also append the @backupPath to the backup File name in the table as well -**/ --- Update the FULL's -UPDATE #DirectoryTree -SET backupTime = -SUBSTRING(backupfile, CHARINDEX (@dbName+'_FULL_',backupFile) +LEN(@dbName+'_FULL_'), (LEN(backupfile) - CHARINDEX ('.',REVERSE(backupFile))) + 1 - (CHARINDEX (@dbName+'_FULL_',backupFile) +LEN(@dbName+'_FULL_'))) -, backupfile = @backupPath + 'FULL\' + backupfile -FROM #DirectoryTree -WHERE CHARINDEX (@dbName+'_FULL_',backupFile) > 0 - --- Update the DIFF's -UPDATE #DirectoryTree -SET backupTime = -SUBSTRING(backupfile, CHARINDEX (@dbName+'_DIFF_',backupFile) +LEN(@dbName+'_DIFF_'), (LEN(backupfile) - CHARINDEX ('.',REVERSE(backupFile))) + 1 - (CHARINDEX (@dbName+'_DIFF_',backupFile) +LEN(@dbName+'_DIFF_'))) -, backupfile = @backupPath + 'DIFF\' + backupfile -FROM #DirectoryTree -WHERE CHARINDEX (@dbName+'_DIFF_',backupFile) > 0 - --- Update the LOGs -UPDATE #DirectoryTree -SET backupTime = -SUBSTRING(backupfile, CHARINDEX (@dbName+'_LOG_',backupFile) +LEN(@dbName+'_LOG_'), (LEN(backupfile) - CHARINDEX ('.',REVERSE(backupFile))) + 1 - (CHARINDEX (@dbName+'_LOG_',backupFile) +LEN(@dbName+'_LOG_'))) -, backupfile = @backupPath + 'LOG\' + backupfile -FROM #DirectoryTree -WHERE CHARINDEX (@dbName+'_LOG_',backupFile) > 0 - -/** - Find latest full backup -**/ -DECLARE @cmd NVARCHAR(500) - , @lastFullBackup NVARCHAR(500) - , @lastDiffBackup NVARCHAR(500) - , @backupFile NVARCHAR(500) - , @lastFullBackupTime NVARCHAR(20) - , @lastDiffBackupTime NVARCHAR(20) - -SELECT TOP 1 @lastFullBackup = backupFile -, @lastFullBackupTime = backupTime -FROM #DirectoryTree -WHERE backupFile LIKE '%' + REPLACE(@@SERVERNAME,'\','$') + '_' + @dbName + '_FULL_%.bak' -ORDER BY backupTime DESC - -SET @cmd = 'RESTORE FILELISTONLY FROM DISK = ''' - + @lastFullBackup + ''' WITH FILE = 1' -PRINT @cmd - -SET @cmd = 'RESTORE DATABASE [' + @dbName + '] FROM DISK = ''' - + @lastFullBackup + ''' WITH NORECOVERY, REPLACE' -PRINT @cmd - -/** - Find latest diff backup -**/ -SELECT TOP 1 @lastDiffBackup = backupFile -, @lastDiffBackupTime = backupTime -FROM #DirectoryTree -WHERE - backupFile LIKE '%' + REPLACE(@@SERVERNAME,'\','$') + '_' + @dbName + '_DIFF_%.bak' - AND backupTime > @lastFullBackupTime - ORDER BY backupTime DESC - -/** - check to make sure there is a diff backup -**/ -IF @lastDiffBackup IS NOT NULL - BEGIN - SET @cmd = 'RESTORE DATABASE [' + @dbName + '] FROM DISK = ''' - + @lastDiffBackup + ''' WITH NORECOVERY' - PRINT @cmd - SET @lastFullBackupTime = @lastDiffBackupTime - END - -/** - check for log backups -**/ -DECLARE backupFiles CURSOR FOR - SELECT backupFile - FROM #DirectoryTree - WHERE - backupFile LIKE '%' + REPLACE(@@SERVERNAME,'\','$') + '_' + @dbName + '_LOG_%.trn' - AND backupTime > @lastFullBackupTime - -OPEN backupFiles - -/** - Loop through all the files for the database -**/ -FETCH NEXT FROM backupFiles INTO @backupFile - -WHILE @@FETCH_STATUS = 0 - BEGIN - SET @cmd = 'RESTORE LOG [' + @dbName + '] FROM DISK = ''' - + @backupFile + ''' WITH NORECOVERY' - PRINT @cmd - FETCH NEXT FROM backupFiles INTO @backupFile - END - -CLOSE backupFiles -DEALLOCATE backupFiles - -/** - put database in a useable state -**/ -SET @cmd = 'RESTORE DATABASE [' + @dbName + '] WITH RECOVERY' -PRINT @cmd - - -/** - Cleanup our temp table -**/ -IF OBJECT_ID('tempdb..#DirectoryTree')IS NOT NULL - DROP TABLE #DirectoryTree; -GO +/* +Author: Joe O'Connor +Original link: http://www.sqlservercentral.com/scripts/Restore/140540/ +*/ + +/* +Description: +T-SQL Script to generate a restore script for a database backed up to disk using Ola Hallengren's +maintenance solution. The script is based solely on the contents of a directory, taking into +account the order of full backups, differential backups and transaction log backups. + +Maintenance Script Credit: Ola Hallengren +https://ola.hallengren.com/ + +Original Restore Script Credit: Greg Robidoux +https://www.mssqltips.com/sqlservertip/1584/auto-generate-sql-server-restore-script-from-backup-files-in-a-directory/ + +Modified Restore Script Credit: Jason Carter +http://jason-carter.net/professional/restore-script-from-backup-directory-modified.html + +Reason for change: +Ola's script uses a .BAK extension for differentials, and stores FULL, DIFF and LOG backups in a sub-folder +heirarchy that matches @backupPath\@@SERVERNAME\@dbName\[FULL|DIFF|LOG]\ and the filename also contains what +type of backup file it is within the filename, making filename comparison for order of restore impossible. + +ChangeLog: + 2/24/2016 - Joe O'Connor (thirtybird@gmail.com) +Allow backup paths to have spaces in them by encapsulating path in the command in quotes +Fixed DIR command - /O D to /O:D to guarantee order by date to ensure transaction logs are restored in proper order +Added wrapper to enable and disable xp_cmdshell and re-set the "show advanced options" setting to whatever it was + If you have xp_cmdshell enabled in your environment, take this part out or it will get disabled! +Took out extra @backupPath in each RESTORE command - the full path is output into the file list and was duplicated in the output +Added backupTime to the local table variable to be used for comparison as comparing filenames doesn't work with Ola's filenames + This involves substring parsing (and is ugly). + + 2/25/2016 - Joe O'Connor (thirtybird@gmail.com) +Added logic to check to see if xp_cmdshell needs to be enabled or not. Only enables and disables if it needs to. +Verified it does not disable xp_cmdshell if it was enabled to start with. + + 3/16/2016 - Joe O'Connor (thirtybird@gmail.com) +Added a RESTORE FILELISTONLY as the first output command. + + 4/20/2016 - Joe O'Connor (thirtybird@gmail.com) +Converted code to utilize xp_dirtree instead of xp_cmdshell +Re-ordered some code to get the variables that need to be set closer to the top of the script +Fixed problem with compatibility with named instances (replacing '\' with '$' in @@SERVERNAME) + +Tested against: SQL 2005 - 2014 +*/ + +USE Master; +GO +SET NOCOUNT ON + +/** + Variable declaration +**/ +DECLARE @dbName sysname +DECLARE @backupPath NVARCHAR(500) + +/** + Initialize variables +**/ +SET @dbName = 'Test' +SET @backupPath = 'Y:\Microsoft SQL Server\Backup' + + +/** + Convert the variables to match that of Olas maintenance script +**/ +IF RIGHT (@backupPath,1) = '\' SET @backupPath = SUBSTRING (@backupPath, 1, LEN (@backupPath)-1) +SET @backupPath = @backupPath + '\' + REPLACE(@@SERVERNAME,'\','$') + '\' + @dbName + '\' + + +/** + Get List of Files +**/ +IF OBJECT_ID('tempdb..#DirectoryTree')IS NOT NULL + DROP TABLE #DirectoryTree; + +CREATE TABLE #DirectoryTree ( + backupFile nvarchar(255) NOT NULL + , depth int + , isfile bit + , backupTime NVARCHAR(20)); + + +/** + Create a clustered index to keep everything in order by filename. +**/ +ALTER TABLE #DirectoryTree +ADD CONSTRAINT PK_DirectoryTree PRIMARY KEY CLUSTERED (backupFile); + +INSERT #DirectoryTree (backupFile,depth,isfile) +EXEC xp_dirtree @backupPath,2,1; + + +/** + Get rid of the directories +**/ +DELETE FROM #DirectoryTree WHERE isfile=0 + + +/** + Figure out the backup time for comparison since file names cannot be compare as all DIFF and LOG backups will be > the full + Also append the @backupPath to the backup File name in the table as well +**/ +-- Update the FULL's +UPDATE #DirectoryTree +SET backupTime = +SUBSTRING(backupfile, CHARINDEX (@dbName+'_FULL_',backupFile) +LEN(@dbName+'_FULL_'), (LEN(backupfile) - CHARINDEX ('.',REVERSE(backupFile))) + 1 - (CHARINDEX (@dbName+'_FULL_',backupFile) +LEN(@dbName+'_FULL_'))) +, backupfile = @backupPath + 'FULL\' + backupfile +FROM #DirectoryTree +WHERE CHARINDEX (@dbName+'_FULL_',backupFile) > 0 + +-- Update the DIFF's +UPDATE #DirectoryTree +SET backupTime = +SUBSTRING(backupfile, CHARINDEX (@dbName+'_DIFF_',backupFile) +LEN(@dbName+'_DIFF_'), (LEN(backupfile) - CHARINDEX ('.',REVERSE(backupFile))) + 1 - (CHARINDEX (@dbName+'_DIFF_',backupFile) +LEN(@dbName+'_DIFF_'))) +, backupfile = @backupPath + 'DIFF\' + backupfile +FROM #DirectoryTree +WHERE CHARINDEX (@dbName+'_DIFF_',backupFile) > 0 + +-- Update the LOGs +UPDATE #DirectoryTree +SET backupTime = +SUBSTRING(backupfile, CHARINDEX (@dbName+'_LOG_',backupFile) +LEN(@dbName+'_LOG_'), (LEN(backupfile) - CHARINDEX ('.',REVERSE(backupFile))) + 1 - (CHARINDEX (@dbName+'_LOG_',backupFile) +LEN(@dbName+'_LOG_'))) +, backupfile = @backupPath + 'LOG\' + backupfile +FROM #DirectoryTree +WHERE CHARINDEX (@dbName+'_LOG_',backupFile) > 0 + +/** + Find latest full backup +**/ +DECLARE @cmd NVARCHAR(500) + , @lastFullBackup NVARCHAR(500) + , @lastDiffBackup NVARCHAR(500) + , @backupFile NVARCHAR(500) + , @lastFullBackupTime NVARCHAR(20) + , @lastDiffBackupTime NVARCHAR(20) + +SELECT TOP 1 @lastFullBackup = backupFile +, @lastFullBackupTime = backupTime +FROM #DirectoryTree +WHERE backupFile LIKE '%' + REPLACE(@@SERVERNAME,'\','$') + '_' + @dbName + '_FULL_%.bak' +ORDER BY backupTime DESC + +SET @cmd = 'RESTORE FILELISTONLY FROM DISK = ''' + + @lastFullBackup + ''' WITH FILE = 1' +PRINT @cmd + +SET @cmd = 'RESTORE DATABASE [' + @dbName + '] FROM DISK = ''' + + @lastFullBackup + ''' WITH NORECOVERY, REPLACE' +PRINT @cmd + +/** + Find latest diff backup +**/ +SELECT TOP 1 @lastDiffBackup = backupFile +, @lastDiffBackupTime = backupTime +FROM #DirectoryTree +WHERE + backupFile LIKE '%' + REPLACE(@@SERVERNAME,'\','$') + '_' + @dbName + '_DIFF_%.bak' + AND backupTime > @lastFullBackupTime + ORDER BY backupTime DESC + +/** + check to make sure there is a diff backup +**/ +IF @lastDiffBackup IS NOT NULL + BEGIN + SET @cmd = 'RESTORE DATABASE [' + @dbName + '] FROM DISK = ''' + + @lastDiffBackup + ''' WITH NORECOVERY' + PRINT @cmd + SET @lastFullBackupTime = @lastDiffBackupTime + END + +/** + check for log backups +**/ +DECLARE backupFiles CURSOR FOR + SELECT backupFile + FROM #DirectoryTree + WHERE + backupFile LIKE '%' + REPLACE(@@SERVERNAME,'\','$') + '_' + @dbName + '_LOG_%.trn' + AND backupTime > @lastFullBackupTime + +OPEN backupFiles + +/** + Loop through all the files for the database +**/ +FETCH NEXT FROM backupFiles INTO @backupFile + +WHILE @@FETCH_STATUS = 0 + BEGIN + SET @cmd = 'RESTORE LOG [' + @dbName + '] FROM DISK = ''' + + @backupFile + ''' WITH NORECOVERY' + PRINT @cmd + FETCH NEXT FROM backupFiles INTO @backupFile + END + +CLOSE backupFiles +DEALLOCATE backupFiles + +/** + put database in a useable state +**/ +SET @cmd = 'RESTORE DATABASE [' + @dbName + '] WITH RECOVERY' +PRINT @cmd + + +/** + Cleanup our temp table +**/ +IF OBJECT_ID('tempdb..#DirectoryTree')IS NOT NULL + DROP TABLE #DirectoryTree; +GO diff --git a/Scripts/Ring_Bufer_Analyze.sql b/Scripts/Ring_Bufer_Analyze.sql new file mode 100644 index 00000000..c3617d85 --- /dev/null +++ b/Scripts/Ring_Bufer_Analyze.sql @@ -0,0 +1,36 @@ +/* +Author: Dmitriy Ivanov +Original link: https://t.me/sqlcom +*/ + +WITH RingBufferXML +AS(SELECT CAST(Record AS XML) AS RBR FROM sys .dm_os_ring_buffers + WHERE ring_buffer_type = 'RING_BUFFER_RESOURCE_MONITOR' + ) +SELECT DISTINCT 'Problems' = + CASE + WHEN XMLRecord.value('(ResourceMonitor/IndicatorsProcess)[1]','tinyint') = 0 AND + XMLRecord.value('(ResourceMonitor/IndicatorsSystem)[1]','tinyint') = 2 + THEN 'Insufficient physical memory for the system' + WHEN XMLRecord.value('(ResourceMonitor/IndicatorsProcess)[1]','tinyint') = 0 AND + XMLRecord.value('(ResourceMonitor/IndicatorsSystem)[1]','tinyint') = 4 + THEN 'Insufficient virtual memory for the system' + WHEN XMLRecord.value('(ResourceMonitor/IndicatorsProcess)[1]', 'tinyint') = 2 AND + XMLRecord.value('(ResourceMonitor/IndicatorsSystem)[1]','tinyint') = 0 + THEN'Insufficient physical memory for queries' + WHEN XMLRecord.value('(ResourceMonitor/IndicatorsProcess)[1]', 'tinyint') = 4 AND + XMLRecord.value('(ResourceMonitor/IndicatorsSystem)[1]', 'tinyint') = 4 + THEN 'Insufficient virtual memory for queries and system' + WHEN XMLRecord.value('(ResourceMonitor/IndicatorsProcess)[1]','tinyint') = 2 AND + XMLRecord.value('(ResourceMonitor/IndicatorsSystem)[1]','tinyint') = 4 + THEN 'Insufficient virtual memory for the system and physical for queries' + WHEN XMLRecord.value('(ResourceMonitor/IndicatorsProcess)[1]', 'tinyint') = 2 AND + XMLRecord.value('(ResourceMonitor/IndicatorsSystem)[1]', 'tinyint') = 2 + THEN 'There is not enough physical memory for the system and requests' + END +FROM RingBufferXML +CROSS APPLY RingBufferXML.RBR.nodes ('Record') Record (XMLRecord) +WHERE XMLRecord.value('(ResourceMonitor/IndicatorsProcess)[1]','tinyint') IN (0,2,4) AND + XMLRecord.value('(ResourceMonitor/IndicatorsSystem)[1]' ,'tinyint') IN (0,2,4) AND + XMLRecord.value('(ResourceMonitor/IndicatorsProcess)[1]','tinyint') + + XMLRecord.value('(ResourceMonitor/IndicatorsSystem)[1]' ,'tinyint') > 0; diff --git a/Scripts/Run_scripts.bat b/Scripts/Run_scripts.bat new file mode 100644 index 00000000..f3e4e39a --- /dev/null +++ b/Scripts/Run_scripts.bat @@ -0,0 +1,15 @@ +REM Author: Manu Mohanan +REM Original link: http://www.sqlservercentral.com/articles/SQLCMD/131634/ + + +@@echo off + +del errors /f /s /q + +rd Errors + +md Errors + +FOR %%A IN (*.SQL) DO ( sqlcmd -S SERVERNAME -d DATABASE1 -U username -P password -i "%%A" -o "Errors\%%AError_DB1.txt" -I ) + +FOR %%A IN (*.SQL) DO ( sqlcmd -S SERVERNAME -d DATABASE2 -U username -P password -i "%%A" -o "Errors\%%AError_DB2.txt" -I ) diff --git a/Scripts/SQL Server 2005 Diagnostic Information Queries.sql b/Scripts/SQL Server 2005 Diagnostic Information Queries.sql index 6e052a32..a9f8818d 100644 --- a/Scripts/SQL Server 2005 Diagnostic Information Queries.sql +++ b/Scripts/SQL Server 2005 Diagnostic Information Queries.sql @@ -1,1064 +1,1191 @@ - --- SQL Server 2005 Diagnostic Information Queries --- Glenn Berry --- CY 2016 --- Last Modified: April 23, 2016 --- http://sqlserverperformance.wordpress.com/ --- http://sqlskills.com/blogs/glenn/ --- Twitter: GlennAlanBerry - --- Please listen to my Pluralsight courses --- http://www.pluralsight.com/author/glenn-berry - --- Many of these queries will not work if you have databases in 80 compatibility mode --- Please make sure you are using the correct version of these diagnostic queries for your version of SQL Server - ---****************************************************************************** ---* Copyright (C) 2016 Glenn Berry, SQLskills.com ---* All rights reserved. ---* ---* For more scripts and sample code, check out ---* http://sqlskills.com/blogs/glenn ---* ---* You may alter this code for your own *non-commercial* purposes. You may ---* republish altered code as long as you include this copyright and give due credit. ---* ---* ---* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ---* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED ---* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A ---* PARTICULAR PURPOSE. ---* ---****************************************************************************** - --- Check the major product version to see if it is SQL Server 2005 -IF NOT EXISTS (SELECT * WHERE CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')) LIKE '9%') - BEGIN - DECLARE @ProductVersion varchar(128); - SET @ProductVersion = CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')); - RAISERROR ('Script does not match the ProductVersion [%s] of this instance. Many of these queries may not work on this version.' , 18 , 16 , @ProductVersion); - END - ELSE - PRINT N'You have the correct major version of SQL Server for this diagnostic information script'; - - --- SQL Version information for current instance (Query 1) (Version Info) -SELECT @@SERVERNAME AS [Server Name], @@VERSION AS [SQL Server and OS Version Info]; - --- SQL Server 2005 is out of mainsteam support from Microsoft --- Build 9.0.5266 was the last cumulative update - - --- SQL 2005 SP2 Builds SQL 2005 SP3 Builds SQL 2005 SP4 Builds --- Build Description Build Description Build Description --- 9.0.3042 SP2 RTM 9.0.4035 SP3 RTM --- 9.0.3161 SP2 CU1 9.0.4207 SP3 CU1 --- 9.0.3175 SP2 CU2 9.0.4211 SP3 CU2 --- 9.0.3186 SP2 CU3 9.0.4220 SP3 CU3 --- 9.0.3200 SP2 CU4 9.0.4226 SP3 CU4 --- 9.0.3215 SP2 CU5 9.0.4230 SP3 CU5 --- 9.0.3228 SP2 CU6 9.0.4266 SP3 CU6 --- 9.0.3239 SP2 CU7 9.0.4273 SP3 CU7 --- 9.0.3257 SP2 CU8 9.0.4285 SP3 CU8 --- 9.0.3282 SP2 CU9 9.0.4294 SP3 CU9 --- 9.0.3294 SP2 CU10 9.0.4305 SP3 CU10 --- 9.0.3301 SP2 CU11 9.0.4309 SP3 CU11 ---> 9.0.5000 SP4 RTM --- 9.0.3315 SP2 CU12 9.0.4311 SP3 CU12 ---> 9.0.5254 SP4 CU1 12/22/2010 --- 9.0.3325 SP2 CU13 9.0.4315 SP3 CU13 --- 9.0.3328 SP2 CU14 9.0.4317 SP3 CU14 ---> 9.0.5259 SP4 CU2 2/21/2011 --- 9.0.3330 SP2 CU15 9.0.4325 SP3 CU15 ---> 9.0.5266 SP4 CU3 3/21/2011 --- 9.0.3355 SP2 CU16 --- 9.0.3356 SP2 CU17 - - - --- The SQL Server 2005 builds that were released after SQL Server 2005 Service Pack 2 was released --- http://support.microsoft.com/kb/937137 - --- The SQL Server 2005 builds that were released after SQL Server 2005 Service Pack 3 was released --- http://support.microsoft.com/kb/960598 - --- The SQL Server 2005 builds that were released after SQL Server 2005 Service Pack 4 was released --- http://support.microsoft.com/kb/2485757 - --- SQL Server 2005 fell out of Mainsteam Support on April 12, 2011 --- This means no more Service Packs or Cumulative Updates --- SQL Server 2005 will end Extended Support on April 12, 2016 - --- SQL Server 2005 Service Pack 4 --- http://www.microsoft.com/en-us/download/details.aspx?id=7218 - - - --- When was SQL Server installed (Query 2) (SQL Server Install Date) -SELECT @@SERVERNAME AS [Server Name], create_date AS [SQL Server Install Date] -FROM sys.server_principals WITH (NOLOCK) -WHERE name = N'NT AUTHORITY\SYSTEM' -OR name = N'NT AUTHORITY\NETWORK SERVICE' OPTION (RECOMPILE); - --- Tells you the date and time that SQL Server was installed --- It is a good idea to know how old your instance is - - --- Get selected server properties (SQL Server 2005) (Query 3) (Server Properties) -SELECT SERVERPROPERTY('MachineName') AS [MachineName], SERVERPROPERTY('ServerName') AS [ServerName], -SERVERPROPERTY('InstanceName') AS [Instance], SERVERPROPERTY('IsClustered') AS [IsClustered], -SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS [ComputerNamePhysicalNetBIOS], -SERVERPROPERTY('Edition') AS [Edition], SERVERPROPERTY('ProductLevel') AS [ProductLevel], -SERVERPROPERTY('ProductVersion') AS [ProductVersion], SERVERPROPERTY('ProcessID') AS [ProcessID], -SERVERPROPERTY('Collation') AS [Collation], SERVERPROPERTY('IsFullTextInstalled') AS [IsFullTextInstalled], -SERVERPROPERTY('IsIntegratedSecurityOnly') AS [IsIntegratedSecurityOnly]; - --- This gives you a lot of useful information about your instance of SQL Server, --- such as the ProcessID for SQL Server and your collation - - --- Get SQL Server Agent jobs and Category information (Query 4) (SQL Server Agent Jobs) -SELECT sj.name AS [JobName], sj.[description] AS [JobDescription], SUSER_SNAME(sj.owner_sid) AS [JobOwner], -sj.date_created, sj.[enabled], sj.notify_email_operator_id, sj.notify_level_email, sc.name AS [CategoryName], -js.next_run_date, js.next_run_time -FROM msdb.dbo.sysjobs AS sj WITH (NOLOCK) -INNER JOIN msdb.dbo.syscategories AS sc WITH (NOLOCK) -ON sj.category_id = sc.category_id -LEFT OUTER JOIN msdb.dbo.sysjobschedules AS js WITH (NOLOCK) -ON sj.job_id = js.job_id -ORDER BY sj.name OPTION (RECOMPILE); - --- Gives you some basic information about your SQL Server Agent jobs, who owns them and how they are configured --- Look for Agent jobs that are not owned by sa --- Look for jobs that have a notify_email_operator_id set to 0 (meaning no operator) --- Look for jobs that have a notify_level_email set to 0 (meaning no e-mail is ever sent) --- --- MSDN sysjobs documentation --- http://msdn.microsoft.com/en-us/library/ms189817.aspx - - --- Get SQL Server Agent Alert Information (Query 5) (SQL Server Agent Alerts) -SELECT name, event_source, message_id, severity, [enabled], has_notification, - delay_between_responses, occurrence_count, last_occurrence_date, last_occurrence_time -FROM msdb.dbo.sysalerts WITH (NOLOCK) -ORDER BY name OPTION (RECOMPILE); - --- Gives you some basic information about your SQL Server Agent Alerts (which are different from SQL Server Agent jobs) --- Read more about Agent Alerts here: http://www.sqlskills.com/blogs/glenn/creating-sql-server-agent-alerts-for-critical-errors/ - - --- Returns a list of all global trace flags that are enabled (Query 6) (Global Trace Flags) -DBCC TRACESTATUS (-1); - --- If no global trace flags are enabled, no results will be returned. --- It is very useful to know what global trace flags are currently enabled as part of the diagnostic process. - --- Common trace flags that should be enabled in most cases --- TF 3226 - Supresses logging of successful database backup messages to the SQL Server Error Log --- TF 1118 - Helps alleviate allocation contention in tempdb, SQL Server allocates full extents to each database object, --- thereby eliminating the contention on SGAM pages (more important with older versions of SQL Server) --- Recommendations to reduce allocation contention in SQL Server tempdb database --- http://support2.microsoft.com/kb/2154845 - - --- Hardware Information from SQL Server 2005 (Query 7) (Hardware Info) --- (Cannot distinguish between HT and multi-core) -SELECT cpu_count AS [Logical CPU Count], hyperthread_ratio AS [Hyperthread Ratio], -cpu_count/hyperthread_ratio AS [Physical CPU Count], -physical_memory_in_bytes/1048576 AS [Physical Memory (MB)] -FROM sys.dm_os_sys_info WITH (NOLOCK) OPTION (RECOMPILE); - --- Gives you some good basic hardware information about your database server - - --- Get System Manufacturer and model number from (Query 8) (System Manufacturer) --- SQL Server Error log. This query might take a few seconds --- if you have not recycled your error log recently -EXEC sys.xp_readerrorlog 0, 1, N'Manufacturer'; - --- This can help you determine the capabilities --- and capacities of your database server --- This often comes back with no results on SQL Server 2005 - - --- Get processor description from Windows Registry (Query 9) (Processor Description) -EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\CentralProcessor\0', N'ProcessorNameString'; - --- Gives you the model number and rated clock speed of your processor(s) --- Your processors may be running at less that the rated clock speed due --- to the Windows Power Plan or hardware power management - - --- Get configuration values for instance (Query 10) (Configuration Values) -SELECT name, value, value_in_use, minimum, maximum, [description], is_dynamic, is_advanced -FROM sys.configurations WITH (NOLOCK) -ORDER BY name OPTION (RECOMPILE); - --- Focus on these settings:) --- backup compression default (should be 1 in most cases) --- clr enabled (only enable if it is needed) --- cost threshold for parallelism (depends on your workload) --- lightweight pooling (should be zero) --- max degree of parallelism (depends on your workload) --- max server memory (MB) (set to an appropriate value, not the default) --- priority boost (should be zero) --- remote admin connections (should be 1) - - --- File Names and Paths for TempDB and all user databases in instance (Query 11) (Database Filenames and Paths) -SELECT DB_NAME([database_id]) AS [Database Name], - [file_id], name, physical_name, type_desc, state_desc, - is_percent_growth, growth, - CONVERT(bigint, growth/128.0) AS [Growth in MB], - CONVERT(bigint, size/128.0) AS [Total Size in MB] -FROM sys.master_files WITH (NOLOCK) -WHERE [database_id] > 4 -AND [database_id] <> 32767 -OR [database_id] = 2 -ORDER BY DB_NAME([database_id]) OPTION (RECOMPILE); - --- Things to look at: --- Are data files and log files on different drives? --- Is everything on the C: drive? --- Is TempDB on dedicated drives? --- Is there only one TempDB data file? --- Are all of the TempDB data files the same size? --- Are there multiple data files for user databases? --- Is percent growth enabled for any files (which is bad)? - - --- Look for I/O requests taking longer than 15 seconds in the five most recent SQL Server Error Logs (Query 12) (IO Warnings) -CREATE TABLE #IOWarningResults(LogDate datetime, ProcessInfo sysname, LogText nvarchar(1000)); - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 0, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 1, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 2, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 3, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 4, 1, N'taking longer than 15 seconds'; - -SELECT LogDate, ProcessInfo, LogText -FROM #IOWarningResults -ORDER BY LogDate DESC; - -DROP TABLE #IOWarningResults; - --- Finding 15 second I/O warnings in the SQL Server Error Log is useful evidence of --- poor I/O performance (which might have many different causes) - - --- Drive level latency information (Query 13) (Drive Level Latency) --- Based on code from Jimmy May -SELECT tab.[Drive], tab.volume_mount_point AS [Volume Mount Point], - CASE - WHEN num_of_reads = 0 THEN 0 - ELSE (io_stall_read_ms/num_of_reads) - END AS [Read Latency], - CASE - WHEN num_of_writes = 0 THEN 0 - ELSE (io_stall_write_ms/num_of_writes) - END AS [Write Latency], - CASE - WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 - ELSE (io_stall/(num_of_reads + num_of_writes)) - END AS [Overall Latency], - CASE - WHEN num_of_reads = 0 THEN 0 - ELSE (num_of_bytes_read/num_of_reads) - END AS [Avg Bytes/Read], - CASE - WHEN num_of_writes = 0 THEN 0 - ELSE (num_of_bytes_written/num_of_writes) - END AS [Avg Bytes/Write], - CASE - WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 - ELSE ((num_of_bytes_read + num_of_bytes_written)/(num_of_reads + num_of_writes)) - END AS [Avg Bytes/Transfer] -FROM (SELECT LEFT(UPPER(mf.physical_name), 2) AS Drive, SUM(num_of_reads) AS num_of_reads, - SUM(io_stall_read_ms) AS io_stall_read_ms, SUM(num_of_writes) AS num_of_writes, - SUM(io_stall_write_ms) AS io_stall_write_ms, SUM(num_of_bytes_read) AS num_of_bytes_read, - SUM(num_of_bytes_written) AS num_of_bytes_written, SUM(io_stall) AS io_stall, vs.volume_mount_point - FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS vfs - INNER JOIN sys.master_files AS mf WITH (NOLOCK) - ON vfs.database_id = mf.database_id AND vfs.file_id = mf.file_id - CROSS APPLY sys.dm_os_volume_stats(mf.database_id, mf.[file_id]) AS vs - GROUP BY LEFT(UPPER(mf.physical_name), 2), vs.volume_mount_point) AS tab -ORDER BY [Overall Latency] OPTION (RECOMPILE); - --- Shows you the drive-level latency for reads and writes, in milliseconds --- Latency above 20-25ms is usually a problem - - --- Calculates average stalls per read, per write, and per total input/output for each database file (Query 14) (IO Stalls by File) -SELECT DB_NAME(fs.database_id) AS [Database Name], CAST(fs.io_stall_read_ms/(1.0 + fs.num_of_reads) AS NUMERIC(10,1)) AS [avg_read_stall_ms], -CAST(fs.io_stall_write_ms/(1.0 + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_write_stall_ms], -CAST((fs.io_stall_read_ms + fs.io_stall_write_ms)/(1.0 + fs.num_of_reads + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_io_stall_ms], -CONVERT(DECIMAL(18,2), mf.size/128.0) AS [File Size (MB)], mf.physical_name, mf.type_desc, fs.io_stall_read_ms, fs.num_of_reads, -fs.io_stall_write_ms, fs.num_of_writes, fs.io_stall_read_ms + fs.io_stall_write_ms AS [io_stalls], fs.num_of_reads + fs.num_of_writes AS [total_io] -FROM sys.dm_io_virtual_file_stats(null,null) AS fs -INNER JOIN sys.master_files AS mf WITH (NOLOCK) -ON fs.database_id = mf.database_id -AND fs.[file_id] = mf.[file_id] -ORDER BY avg_io_stall_ms DESC OPTION (RECOMPILE); - --- Helps determine which database files on the entire instance have the most I/O bottlenecks --- This can help you decide whether certain LUNs are overloaded and whether you might --- want to move some files to a different location or perhaps improve your I/O performance - - --- Recovery model, log reuse wait description, log file size, log usage size (Query 15) (Database Properties) --- and compatibility level for all databases on instance -SELECT db.[name] AS [Database Name], db.recovery_model_desc AS [Recovery Model], -db.log_reuse_wait_desc AS [Log Reuse Wait Description], -ls.cntr_value AS [Log Size (KB)], lu.cntr_value AS [Log Used (KB)], -CAST(CAST(lu.cntr_value AS FLOAT) / CAST(ls.cntr_value AS FLOAT)AS DECIMAL(18,2)) * 100 AS [Log Used %], -db.[compatibility_level] AS [DB Compatibility Level], -db.page_verify_option_desc AS [Page Verify Option], db.is_auto_create_stats_on, db.is_auto_update_stats_on, -db.is_auto_update_stats_async_on, db.is_parameterization_forced, -db.snapshot_isolation_state_desc, db.is_read_committed_snapshot_on, -db.is_auto_close_on, db.is_auto_shrink_on -FROM sys.databases AS db WITH (NOLOCK) -INNER JOIN sys.dm_os_performance_counters AS lu WITH (NOLOCK) -ON db.name = lu.instance_name -INNER JOIN sys.dm_os_performance_counters AS ls WITH (NOLOCK) -ON db.name = ls.instance_name -WHERE lu.counter_name LIKE N'Log File(s) Used Size (KB)%' -AND ls.counter_name LIKE N'Log File(s) Size (KB)%' -AND ls.cntr_value > 0 OPTION (RECOMPILE); - --- Things to look at: --- How many databases are on the instance? --- What recovery models are they using? --- What is the log reuse wait description? --- How full are the transaction logs ? --- What compatibility level are the databases on? --- What is the Page Verify Option? (should be CHECKSUM) --- Is Auto Update Statistics Asynchronously enabled? --- Make sure auto_shrink and auto_close are not enabled! - - - --- Missing Indexes for all databases by Index Advantage (Query 16) (Missing Indexes All Databases) -SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], -migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], -mid.equality_columns, mid.inequality_columns, mid.included_columns, -migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact -FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) -INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) -ON migs.group_handle = mig.index_group_handle -INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) -ON mig.index_handle = mid.index_handle -ORDER BY index_advantage DESC OPTION (RECOMPILE); - --- Getting missing index information for all of the databases on the instance is very useful --- Look at last user seek time, number of user seeks to help determine source and importance --- Also look at avg_user_impact and avg_total_user_cost to help determine importance --- SQL Server is overly eager to add included columns, so beware --- Do not just blindly add indexes that show up from this query!!! - - - --- Get VLF Counts for all databases on the instance (Query 17) (VLF Counts) --- (adapted from Michelle Ufford) -CREATE TABLE #VLFInfo (FileID int, - FileSize bigint, StartOffset bigint, - FSeqNo bigint, [Status] bigint, - Parity bigint, CreateLSN numeric(38)); - -CREATE TABLE #VLFCountResults(DatabaseName sysname, VLFCount int); - -EXEC sp_MSforeachdb N'Use [?]; - - INSERT INTO #VLFInfo - EXEC sp_executesql N''DBCC LOGINFO([?])''; - - INSERT INTO #VLFCountResults - SELECT DB_NAME(), COUNT(*) - FROM #VLFInfo; - - TRUNCATE TABLE #VLFInfo;' - -SELECT DatabaseName, VLFCount -FROM #VLFCountResults -ORDER BY VLFCount DESC; - -DROP TABLE #VLFInfo; -DROP TABLE #VLFCountResults; - --- High VLF counts can affect write performance --- and they can make database restores and recovery take much longer --- Try to keep your VLF counts under 200 in most cases - - - --- Get CPU utilization by database (Query 18) (CPU Usage by Database) -WITH DB_CPU_Stats -AS -(SELECT pa.DatabaseID, DB_Name(pa.DatabaseID) AS [Database Name], SUM(qs.total_worker_time/1000) AS [CPU_Time_Ms] - FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) - CROSS APPLY (SELECT CONVERT(int, value) AS [DatabaseID] - FROM sys.dm_exec_plan_attributes(qs.plan_handle) - WHERE attribute = N'dbid') AS pa - GROUP BY DatabaseID) -SELECT ROW_NUMBER() OVER(ORDER BY [CPU_Time_Ms] DESC) AS [CPU Rank], - [Database Name], [CPU_Time_Ms] AS [CPU Time (ms)], - CAST([CPU_Time_Ms] * 1.0 / SUM([CPU_Time_Ms]) OVER() * 100.0 AS DECIMAL(5, 2)) AS [CPU Percent] -FROM DB_CPU_Stats -WHERE DatabaseID <> 32767 -- ResourceDB -ORDER BY [CPU Rank] OPTION (RECOMPILE); - --- Helps determine which database is using the most CPU resources on the instance - - --- Get I/O utilization by database (Query 19) (IO Usage By Database) -WITH Aggregate_IO_Statistics -AS -(SELECT DB_NAME(database_id) AS [Database Name], -CAST(SUM(num_of_bytes_read + num_of_bytes_written)/1048576 AS DECIMAL(12, 2)) AS io_in_mb -FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS [DM_IO_STATS] -GROUP BY database_id) -SELECT ROW_NUMBER() OVER(ORDER BY io_in_mb DESC) AS [I/O Rank], [Database Name], io_in_mb AS [Total I/O (MB)], - CAST(io_in_mb/ SUM(io_in_mb) OVER() * 100.0 AS DECIMAL(5,2)) AS [I/O Percent] -FROM Aggregate_IO_Statistics -ORDER BY [I/O Rank] OPTION (RECOMPILE); - --- Helps determine which database is using the most I/O resources on the instance - - --- Get total buffer usage by database for current instance (Query 20) (Total Buffer Usage by Database) --- This make take some time to run on a busy instance -WITH AggregateBufferPoolUsage -AS -(SELECT DB_NAME(database_id) AS [Database Name], -CAST(COUNT(*) * 8/1024.0 AS DECIMAL (10,2)) AS [CachedSize] -FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) -WHERE database_id <> 32767 -- ResourceDB -GROUP BY DB_NAME(database_id)) -SELECT ROW_NUMBER() OVER(ORDER BY CachedSize DESC) AS [Buffer Pool Rank], [Database Name], CachedSize AS [Cached Size (MB)], - CAST(CachedSize / SUM(CachedSize) OVER() * 100.0 AS DECIMAL(5,2)) AS [Buffer Pool Percent] -FROM AggregateBufferPoolUsage -ORDER BY [Buffer Pool Rank] OPTION (RECOMPILE); - --- Tells you how much memory (in the buffer pool) --- is being used by each database on the instance - - --- Clear Wait Stats with this command --- DBCC SQLPERF('sys.dm_os_wait_stats', CLEAR); - --- Isolate top waits for server instance since last restart or statistics clear (Query 21) (Top Waits) -WITH [Waits] -AS (SELECT wait_type, wait_time_ms/ 1000.0 AS [WaitS], - (wait_time_ms - signal_wait_time_ms) / 1000.0 AS [ResourceS], - signal_wait_time_ms / 1000.0 AS [SignalS], - waiting_tasks_count AS [WaitCount], - 100.0 * wait_time_ms / SUM (wait_time_ms) OVER() AS [Percentage], - ROW_NUMBER() OVER(ORDER BY wait_time_ms DESC) AS [RowNum] - FROM sys.dm_os_wait_stats WITH (NOLOCK) - WHERE [wait_type] NOT IN ( - N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', - N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', - N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', - N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', - N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', - N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', - N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', - N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', - N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', - N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', - N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', - N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', - N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', - N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', - N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', - N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', - N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', - N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', - N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') - AND waiting_tasks_count > 0) -SELECT - MAX (W1.wait_type) AS [WaitType], - CAST (MAX (W1.WaitS) AS DECIMAL (16,2)) AS [Wait_Sec], - CAST (MAX (W1.ResourceS) AS DECIMAL (16,2)) AS [Resource_Sec], - CAST (MAX (W1.SignalS) AS DECIMAL (16,2)) AS [Signal_Sec], - MAX (W1.WaitCount) AS [Wait Count], - CAST (MAX (W1.Percentage) AS DECIMAL (5,2)) AS [Wait Percentage], - CAST ((MAX (W1.WaitS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgWait_Sec], - CAST ((MAX (W1.ResourceS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgRes_Sec], - CAST ((MAX (W1.SignalS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgSig_Sec] -FROM Waits AS W1 -INNER JOIN Waits AS W2 -ON W2.RowNum <= W1.RowNum -GROUP BY W1.RowNum -HAVING SUM (W2.Percentage) - MAX (W1.Percentage) < 99 -- percentage threshold -OPTION (RECOMPILE); - --- The SQL Server Wait Type Repository --- http://blogs.msdn.com/b/psssql/archive/2009/11/03/the-sql-server-wait-type-repository.aspx - --- Wait statistics, or please tell me where it hurts --- http://www.sqlskills.com/blogs/paul/wait-statistics-or-please-tell-me-where-it-hurts/ - --- SQL Server 2005 Performance Tuning using the Waits and Queues --- http://technet.microsoft.com/en-us/library/cc966413.aspx - --- sys.dm_os_wait_stats (Transact-SQL) --- http://msdn.microsoft.com/en-us/library/ms179984(v=sql.100).aspx - - - --- Signal Waits for instance (Query 22) (Signal Waits) -SELECT CAST(100.0 * SUM(signal_wait_time_ms) / SUM (wait_time_ms) AS NUMERIC(20,2)) AS [% Signal (CPU) Waits], -CAST(100.0 * SUM(wait_time_ms - signal_wait_time_ms) / SUM (wait_time_ms) AS NUMERIC(20,2)) AS [% Resource Waits] -FROM sys.dm_os_wait_stats WITH (NOLOCK) -WHERE wait_type NOT IN ( - N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', - N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', - N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', - N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', - N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', - N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', - N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', - N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', - N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', - N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', - N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', - N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', - N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', - N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', - N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', - N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', - N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', - N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', - N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') OPTION (RECOMPILE); - --- Signal Waits above 10-15% is usually a confirming sign of CPU pressure --- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure --- Resource waits are non-CPU related waits - - --- Get logins that are connected and how many sessions they have (Query 23) (Connection Counts) -SELECT login_name, [program_name], COUNT(session_id) AS [session_count] -FROM sys.dm_exec_sessions WITH (NOLOCK) -GROUP BY login_name, [program_name] -ORDER BY COUNT(session_id) DESC OPTION (RECOMPILE); - --- This can help characterize your workload and --- determine whether you are seeing a normal level of activity - - --- Get a count of SQL connections by IP address (Query 24) (Connection Counts by IP Address) -SELECT ec.client_net_address, es.[program_name], es.[host_name], es.login_name, -COUNT(ec.session_id) AS [connection count] -FROM sys.dm_exec_sessions AS es WITH (NOLOCK) -INNER JOIN sys.dm_exec_connections AS ec WITH (NOLOCK) -ON es.session_id = ec.session_id -GROUP BY ec.client_net_address, es.[program_name], es.[host_name], es.login_name -ORDER BY ec.client_net_address, es.[program_name] OPTION (RECOMPILE); - --- This helps you figure where your database load is coming from --- and verifies connectivity from other machines - - --- Get Average Task Counts (run multiple times) (Query 25) (Avg Task Counts) -SELECT AVG(current_tasks_count) AS [Avg Task Count], -AVG(runnable_tasks_count) AS [Avg Runnable Task Count], -AVG(pending_disk_io_count) AS [AvgPendingDiskIOCount] -FROM sys.dm_os_schedulers WITH (NOLOCK) -WHERE scheduler_id < 255 OPTION (RECOMPILE); - --- Sustained values above 10 suggest further investigation in that area --- High Avg Task Counts are often caused by blocking/deadlocking or other resource contention - --- Sustained values above 1 suggest further investigation in that area --- High Avg Runnable Task Counts are a good sign of CPU pressure --- High Avg Pending DiskIO Counts are a sign of disk pressure - - --- Get CPU Utilization History for last 256 minutes (in one minute intervals) (Query 26) (CPU Utilization History) --- This version works with SQL Server 2005 -DECLARE @ts_now bigint; -SET @ts_now = (SELECT cpu_ticks / CONVERT(float, cpu_ticks_in_ms) FROM sys.dm_os_sys_info WITH (NOLOCK)); - -SELECT TOP(256) SQLProcessUtilization AS [SQL Server Process CPU Utilization], - SystemIdle AS [System Idle Process], - 100 - SystemIdle - SQLProcessUtilization AS [Other Process CPU Utilization], - DATEADD(ms, -1 * (@ts_now - [timestamp]), GETDATE()) AS [Event Time] -FROM ( - SELECT record.value('(./Record/@id)[1]', 'int') AS record_id, - record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') - AS [SystemIdle], - record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', - 'int') - AS [SQLProcessUtilization], [timestamp] - FROM ( - SELECT [timestamp], CONVERT(xml, record) AS [record] - FROM sys.dm_os_ring_buffers WITH (NOLOCK) - WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' - AND record LIKE '%%') AS x - ) AS y -ORDER BY record_id DESC OPTION (RECOMPILE); - --- Look at the trend over the entire period. --- Also look at high sustained Other Process CPU Utilization values - - --- Page Life Expectancy (PLE) value for each NUMA node in current instance (Query 27) (PLE by NUMA Node) -SELECT @@SERVERNAME AS [Server Name], [object_name], instance_name, cntr_value AS [Page Life Expectancy] -FROM sys.dm_os_performance_counters WITH (NOLOCK) -WHERE [object_name] LIKE N'%Buffer Node%' -- Handles named instances -AND counter_name = N'Page life expectancy' OPTION (RECOMPILE); - --- PLE is a good measurement of memory pressure. --- Higher PLE is better. Watch the trend over time, not the absolute value. --- This will only return one row for non-NUMA systems. - - --- Memory Grants Pending value for current instance (Query 28) (Memory Grants Pending) -SELECT @@SERVERNAME AS [Server Name], [object_name], cntr_value AS [Memory Grants Pending] -FROM sys.dm_os_performance_counters WITH (NOLOCK) -WHERE [object_name] LIKE N'%Memory Manager%' -- Handles named instances -AND counter_name = N'Memory Grants Pending' OPTION (RECOMPILE); - --- Memory Grants Pending above zero for a sustained period is a very strong indicator of memory pressure - - --- Memory Clerk Usage for instance (Query 29) (Memory Clerk Usage) --- Look for high value for CACHESTORE_SQLCP (Ad-hoc query plans) -SELECT TOP(10) [type] AS [Memory Clerk Type], SUM(single_pages_kb)/1024 AS [SPA Memory Usage (MB)] -FROM sys.dm_os_memory_clerks WITH (NOLOCK) -GROUP BY [type] -ORDER BY SUM(single_pages_kb) DESC OPTION (RECOMPILE); - --- CACHESTORE_SQLCP SQL Plans --- These are cached SQL statements or batches that aren't in stored procedures, functions and triggers --- Watch out for high values for CACHESTORE_SQLCP - --- CACHESTORE_OBJCP Object Plans --- These are compiled plans for stored procedures, functions and triggers - - - --- Find single-use, ad-hoc queries that are bloating the plan cache (Query 30) (Ad hoc Queries) -SELECT TOP(50) [text] AS [QueryText], cp.cacheobjtype, cp.objtype, cp.size_in_bytes/1024 AS [Plan Size in KB] -FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) -WHERE cp.cacheobjtype = N'Compiled Plan' -AND cp.objtype IN (N'Adhoc', N'Prepared') -AND cp.usecounts = 1 -ORDER BY cp.size_in_bytes DESC OPTION (RECOMPILE); - --- Gives you the text and size of single-use ad-hoc queries that waste space in plan cache --- SQL Server Agent creates lots of ad-hoc, single use query plans in SQL Server 2005 --- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this. --- Enabling forced parameterization for the database can help, but test first! - - - --- Switch to user database ******************* ---USE YourDatabaseName; ---GO - --- Individual File Sizes and space available for current database (Query 31) (File Sizes and Space) -SELECT f.name AS [File Name] , f.physical_name AS [Physical Name], -CAST((f.size/128.0) AS DECIMAL(15,2)) AS [Total Size in MB], -CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) -AS [Available Space In MB], [file_id], fg.name AS [Filegroup Name] -FROM sys.database_files AS f WITH (NOLOCK) -LEFT OUTER JOIN sys.data_spaces AS fg WITH (NOLOCK) -ON f.data_space_id = fg.data_space_id OPTION (RECOMPILE); - --- Look at how large and how full the files are and where they are located --- Make sure the transaction log is not full!! - - - --- I/O Statistics by file for the current database (Query 32) (IO Stats By File) -SELECT DB_NAME(DB_ID()) AS [Database Name], df.name AS [Logical Name], vfs.[file_id], -df.physical_name AS [Physical Name], vfs.num_of_reads, vfs.num_of_writes, vfs.io_stall_read_ms, vfs.io_stall_write_ms, -CAST(100. * vfs.io_stall_read_ms/(vfs.io_stall_read_ms + vfs.io_stall_write_ms) AS DECIMAL(10,1)) AS [IO Stall Reads Pct], -CAST(100. * vfs.io_stall_write_ms/(vfs.io_stall_write_ms + vfs.io_stall_read_ms) AS DECIMAL(10,1)) AS [IO Stall Writes Pct], -(vfs.num_of_reads + vfs.num_of_writes) AS [Writes + Reads], -CAST(vfs.num_of_bytes_read/1048576.0 AS DECIMAL(10, 2)) AS [MB Read], -CAST(vfs.num_of_bytes_written/1048576.0 AS DECIMAL(10, 2)) AS [MB Written], -CAST(100. * vfs.num_of_reads/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Reads Pct], -CAST(100. * vfs.num_of_writes/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Write Pct], -CAST(100. * vfs.num_of_bytes_read/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Read Bytes Pct], -CAST(100. * vfs.num_of_bytes_written/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Written Bytes Pct] -FROM sys.dm_io_virtual_file_stats(DB_ID(), NULL) AS vfs -INNER JOIN sys.database_files AS df WITH (NOLOCK) -ON vfs.[file_id]= df.[file_id] OPTION (RECOMPILE); - --- This helps you characterize your workload better from an I/O perspective --- It helps you determine whether you has an OLTP or DW/DSS type of workload - - - --- Cached SP's By Execution Count (SQL 2005) (Query 33) (SP Execution Counts) -SELECT TOP(25) OBJECT_NAME(objectid, dbid) AS [SP Name], qt.[text] AS [SP Text], -qs.execution_count AS [Execution Count], -qs.execution_count/DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Calls/Minute], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], -qs.total_worker_time AS [TotalWorkerTime], -qs.total_elapsed_time/qs.execution_count AS [AvgElapsedTime], -qs.max_logical_reads, qs.max_logical_writes, qs.total_physical_reads, -DATEDIFF(Minute, qs.creation_time, GetDate()) AS [Age in Cache] -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(qs.[sql_handle]) AS qt -WHERE qt.[dbid] = DB_ID() -ORDER BY qs.execution_count DESC OPTION (RECOMPILE); - --- Tells you which cached stored procedures are called the most often --- This helps you characterize and baseline your workload - - --- Top Cached SPs By Avg Elapsed Time (SQL 2005) (Query 34) (SP Avg Elapsed Time) -SELECT TOP(25) OBJECT_NAME(objectid, dbid) AS [SP Name], qt.[text] AS [SP Text], -ISNULL(qs.total_elapsed_time/qs.execution_count, 0) AS [AvgElapsedTime], -qs.execution_count AS [Execution Count], qs.total_worker_time AS [TotalWorkerTime], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.creation_time, GETDATE()), 0) AS [Calls/Minute], -qs.max_logical_reads, qs.max_logical_writes, -DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Age in Cache] -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(qs.[sql_handle]) AS qt -WHERE qt.[dbid] = DB_ID() -ORDER BY qs.total_elapsed_time/qs.execution_count DESC OPTION (RECOMPILE); - --- This helps you find long-running cached stored procedures that --- may be easy to optimize with standard query tuning techniques - --- Cached SP's By Worker Time (SQL 2005) Worker time relates to CPU cost (Query 35) (SP Worker Time) -SELECT TOP(25) OBJECT_NAME(objectid, dbid) AS [SP Name], qt.[text] AS [SP Text], -qs.total_worker_time AS [TotalWorkerTime], qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], -qs.execution_count AS [Execution Count], -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.creation_time, GETDATE()), 0) AS [Calls/Minute], -ISNULL(qs.total_elapsed_time/qs.execution_count, 0) AS [AvgElapsedTime], -qs.max_logical_reads, qs.max_logical_writes, -DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Age in Cache] -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(qs.[sql_handle]) AS qt -WHERE qt.[dbid] = DB_ID() -ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a CPU perspective --- You should look at this if you see signs of CPU pressure - --- Cached SP's By Logical Reads (SQL 2005) Logical reads relate to memory pressure (Query 36) (SP Logical Reads) -SELECT TOP(25) OBJECT_NAME(objectid, dbid) AS [SP Name], qt.[text] AS [SP Text], -total_logical_reads, qs.max_logical_reads, -total_logical_reads/qs.execution_count AS [AvgLogicalReads], qs.execution_count AS [Execution Count], -qs.execution_count/DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Calls/Minute], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], -qs.total_worker_time AS [TotalWorkerTime], -qs.total_elapsed_time/qs.execution_count AS [AvgElapsedTime], -qs.total_logical_writes, - qs.max_logical_writes, qs.total_physical_reads, -DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Age in Cache] -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(qs.[sql_handle]) AS qt -WHERE qt.[dbid] = DB_ID() -ORDER BY total_logical_reads DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a memory perspective --- You should look at this if you see signs of memory pressure - - --- Cached SP's By Physical Reads (SQL 2005) Physical reads relate to read I/O pressure (Query 37) (SP Physical Reads) -SELECT TOP(25) OBJECT_NAME(objectid, dbid) AS [SP Name], qt.[text] AS [SP Text], -qs.total_physical_reads, total_logical_reads, qs.max_logical_reads, -total_logical_reads/qs.execution_count AS [AvgLogicalReads], qs.execution_count AS [Execution Count], -qs.execution_count/DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Calls/Minute], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], -qs.total_worker_time AS [TotalWorkerTime], -qs.total_elapsed_time/qs.execution_count AS [AvgElapsedTime], -DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Age in Cache] -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(qs.[sql_handle]) AS qt -WHERE qt.[dbid] = DB_ID() -- Filter by current database -AND qs.total_physical_reads > 0 -ORDER BY qs.total_physical_reads DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a read I/O perspective --- You should look at this if you see signs of I/O pressure or of memory pressure - - --- Top Cached SPs By Total Logical Writes (SQL 2005) (Query 38) (SP Logical Writes) --- Logical writes relate to both memory and disk I/O pressure -SELECT TOP(25) OBJECT_NAME(objectid, dbid) AS [SP Name], qt.[text] AS [SP Text], -qs.total_logical_writes, qs.max_logical_writes, -qs.total_logical_writes/qs.execution_count AS [AvgLogicalWrites], qs.execution_count AS [Execution Count], -qs.execution_count/DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Calls/Minute], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], -qs.total_worker_time AS [TotalWorkerTime], -qs.total_elapsed_time/qs.execution_count AS [AvgElapsedTime], -qs.total_physical_reads, -DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Age in Cache] -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(qs.[sql_handle]) AS qt -WHERE qt.[dbid] = DB_ID() -AND qs.total_logical_writes > 0 -ORDER BY total_logical_writes DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a write I/O perspective --- You should look at this if you see signs of I/O pressure or of memory pressure - - --- Lists the top statements by average input/output usage for the current database (Query 39) (Top IO Statements) -SELECT TOP(50) OBJECT_NAME(qt.objectid, dbid) AS [SP Name], -(qs.total_logical_reads + qs.total_logical_writes) /qs.execution_count AS [Avg IO], qs.execution_count AS [Execution Count], -SUBSTRING(qt.[text],qs.statement_start_offset/2, - (CASE - WHEN qs.statement_end_offset = -1 - THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 - ELSE qs.statement_end_offset - END - qs.statement_start_offset)/2) AS [Query Text] -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt -WHERE qt.[dbid] = DB_ID() -ORDER BY [Avg IO] DESC OPTION (RECOMPILE); - --- Helps you find the most expensive statements for I/O by SP - - - --- Possible Bad NC Indexes (writes > reads) (Query 40) (Bad NC Indexes) -SELECT OBJECT_NAME(s.[object_id]) AS [Table Name], i.name AS [Index Name], -o.[type_desc], o.create_date, i.index_id, i.is_disabled, -user_updates AS [Total Writes], user_seeks + user_scans + user_lookups AS [Total Reads], -user_updates - (user_seeks + user_scans + user_lookups) AS [Difference] -FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON s.[object_id] = i.[object_id] -AND i.index_id = s.index_id -INNER JOIN sys.objects AS o WITH (NOLOCK) -ON i.[object_id] = o.[object_id] -WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 -AND s.database_id = DB_ID() -AND user_updates > (user_seeks + user_scans + user_lookups) -AND i.index_id > 1 -ORDER BY [Difference] DESC, [Total Writes] DESC, [Total Reads] ASC OPTION (RECOMPILE); - --- Look for indexes with high numbers of writes and zero or very low numbers of reads --- Consider your complete workload, and how long your instance has been running --- Investigate further before dropping an index! - - --- Missing Indexes for current database by Index Advantage (Query 41) (Missing Indexes) -SELECT DISTINCT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], -migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], -mid.equality_columns, mid.inequality_columns, mid.included_columns, -migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact, -OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows] -FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) -INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) -ON migs.group_handle = mig.index_group_handle -INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) -ON mig.index_handle = mid.index_handle -INNER JOIN sys.partitions AS p WITH (NOLOCK) -ON p.[object_id] = mid.[object_id] -WHERE mid.database_id = DB_ID() -ORDER BY index_advantage DESC OPTION (RECOMPILE); - --- Look at index advantage, last user seek time, number of user seeks to help determine source and importance --- SQL Server is overly eager to add included columns, so beware --- Do not just blindly add indexes that show up from this query!!! - - --- Find missing index warnings for cached plans in the current database (Query 42) (Missing Index Warnings) --- Note: This query could take some time on a busy instance -SELECT TOP(25) OBJECT_NAME(objectid) AS [ObjectName], - query_plan, cp.objtype, cp.usecounts -FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) -CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp -WHERE CAST(query_plan AS NVARCHAR(MAX)) LIKE N'%MissingIndex%' -AND dbid = DB_ID() -ORDER BY cp.usecounts DESC OPTION (RECOMPILE); - --- Helps you connect missing indexes to specific stored procedures --- This can help you decide whether to add them or not - - --- Breaks down buffers used by current database by object (table, index) in the buffer cache (Query 43) (Buffer Usage) --- Note: This query could take some time on a busy instance -SELECT OBJECT_NAME(p.[object_id]) AS [ObjectName], -p.index_id, COUNT(*)/128 AS [buffer size(MB)], COUNT(*) AS [buffer_count] -FROM sys.allocation_units AS a -INNER JOIN sys.dm_os_buffer_descriptors AS b WITH (NOLOCK) -ON a.allocation_unit_id = b.allocation_unit_id -INNER JOIN sys.partitions AS p WITH (NOLOCK) -ON a.container_id = p.hobt_id -WHERE b.database_id = DB_ID() -AND p.[object_id] > 100 -GROUP BY p.[object_id], p.index_id -ORDER BY buffer_count DESC OPTION (RECOMPILE); - --- Tells you what tables and indexes are using the most memory in the buffer cache - - --- Get Table names, row counts (Query 44) (Table Sizes) -SELECT OBJECT_NAME(object_id) AS [ObjectName], SUM(Rows) AS [RowCount] -FROM sys.partitions WITH (NOLOCK) -WHERE index_id < 2 --ignore the partitions from the non-clustered index if any -AND OBJECT_NAME(object_id) NOT LIKE N'sys%' -AND OBJECT_NAME(object_id) NOT LIKE N'queue_%' -AND OBJECT_NAME(object_id) NOT LIKE N'filestream_tombstone%' -AND OBJECT_NAME(object_id) NOT LIKE N'fulltext%' -GROUP BY [object_id] -ORDER BY SUM(Rows) DESC OPTION (RECOMPILE); - --- Gives you an idea of table sizes - - --- Detect blocking (run multiple times) (Query 45) (Detect Blocking) -SELECT t1.resource_type AS [lock type], DB_NAME(resource_database_id) AS [database], -t1.resource_associated_entity_id AS [blk object],t1.request_mode AS [lock req], --- lock requested -t1.request_session_id AS [waiter sid], t2.wait_duration_ms AS [wait time], -- spid of waiter -(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK) -- get sql for waiter -CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) -WHERE r.session_id = t1.request_session_id) AS [waiter_batch], -(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, - (CASE WHEN r.statement_end_offset = -1 - THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 - ELSE r.statement_end_offset END - r.statement_start_offset)/2) -FROM sys.dm_exec_requests AS r WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt -WHERE r.session_id = t1.request_session_id) AS [waiter_stmt], -- statement blocked -t2.blocking_session_id AS [blocker sid], -- spid of blocker -(SELECT [text] FROM sys.sysprocesses AS p -- get sql for blocker -CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) -WHERE p.spid = t2.blocking_session_id) AS [blocker_stmt] -FROM sys.dm_tran_locks AS t1 WITH (NOLOCK) -INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK) -ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE); - --- Helps troubleshoot blocking and deadlocking issues --- The results will change from second to second on a busy system --- You should run this query multiple times when you see signs of blocking - - --- When were Statistics last updated on all indexes? (Query 46) (Statistics Update) -SELECT SCHEMA_NAME(o.Schema_ID) + N'.' + o.NAME AS [Object Name], o.type_desc AS [Object Type], - i.name AS [Index Name], STATS_DATE(i.[object_id], i.index_id) AS [Statistics Date], - s.auto_created, s.no_recompute, s.user_created, st.row_count, st.used_page_count -FROM sys.objects AS o WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON o.[object_id] = i.[object_id] -INNER JOIN sys.stats AS s WITH (NOLOCK) -ON i.[object_id] = s.[object_id] -AND i.index_id = s.stats_id -INNER JOIN sys.dm_db_partition_stats AS st WITH (NOLOCK) -ON o.[object_id] = st.[object_id] -AND i.[index_id] = st.[index_id] -WHERE o.[type] IN ('U', 'V') -AND st.row_count > 0 -ORDER BY STATS_DATE(i.[object_id], i.index_id) DESC OPTION (RECOMPILE); - --- Helps discover possible problems with out-of-date statistics --- Also gives you an idea which indexes are the most active - - - --- Get fragmentation info for all indexes above a certain size in the current database (Query 47) (Index Fragmentation) --- Note: This query could take some time on a very large database -SELECT DB_NAME(ps.database_id) AS [Database Name], OBJECT_NAME(ps.OBJECT_ID) AS [Object Name], -i.name AS [Index Name], ps.index_id, ps.index_type_desc, ps.avg_fragmentation_in_percent, -ps.fragment_count, ps.page_count, i.fill_factor -FROM sys.dm_db_index_physical_stats(DB_ID(),NULL, NULL, NULL , N'LIMITED') AS ps -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON ps.[object_id] = i.[object_id] -AND ps.index_id = i.index_id -WHERE ps.database_id = DB_ID() -AND ps.page_count > 2500 -ORDER BY ps.avg_fragmentation_in_percent DESC OPTION (RECOMPILE); - --- Helps determine whether you have framentation in your relational indexes --- and how effective your index maintenance strategy is - - ---- Index Read/Write stats (all tables in current DB) ordered by Reads (Query 48) (Overall Index Usage - Reads) -SELECT OBJECT_NAME(s.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, - user_seeks + user_scans + user_lookups AS [Reads], s.user_updates AS [Writes], - i.type_desc AS [IndexType], i.fill_factor AS [FillFactor] -FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON s.[object_id] = i.[object_id] -WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 -AND i.index_id = s.index_id -AND s.database_id = DB_ID() -ORDER BY user_seeks + user_scans + user_lookups DESC OPTION (RECOMPILE); -- Order by reads - --- Show which indexes in the current database are most active for Reads - - ---- Index Read/Write stats (all tables in current DB) ordered by Writes (Query 49) (Overall Index Usage - Writes) -SELECT OBJECT_NAME(s.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, - s.user_updates AS [Writes], user_seeks + user_scans + user_lookups AS [Reads], - i.type_desc AS [IndexType], i.fill_factor AS [FillFactor], - s.last_system_update, s.last_user_update -FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON s.[object_id] = i.[object_id] -WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 -AND i.index_id = s.index_id -AND s.database_id = DB_ID() -ORDER BY s.user_updates DESC OPTION (RECOMPILE); -- Order by writes - --- Show which indexes in the current database are most active for Writes - - --- Get lock waits for current database (Query 50) (Lock Waits) -SELECT o.name AS [table_name], i.name AS [index_name], ios.index_id, ios.partition_number, - SUM(ios.row_lock_wait_count) AS [total_row_lock_waits], - SUM(ios.row_lock_wait_in_ms) AS [total_row_lock_wait_in_ms], - SUM(ios.page_lock_wait_count) AS [total_page_lock_waits], - SUM(ios.page_lock_wait_in_ms) AS [total_page_lock_wait_in_ms], - SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) AS [total_lock_wait_in_ms] -FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) AS ios -INNER JOIN sys.objects AS o WITH (NOLOCK) -ON ios.[object_id] = o.[object_id] -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON ios.[object_id] = i.[object_id] -AND ios.index_id = i.index_id -WHERE o.[object_id] > 100 -GROUP BY o.name, i.name, ios.index_id, ios.partition_number -HAVING SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) > 0 -ORDER BY total_lock_wait_in_ms DESC OPTION (RECOMPILE); - --- This query is helpful for troubleshooting blocking and deadlocking issues - - --- Look at recent Full backups for the current database (Query 51) (Recent Full Backups) -SELECT TOP (30) bs.server_name, bs.database_name AS [Database Name], -CONVERT (BIGINT, bs.backup_size / 1048576 ) AS [Backup Size (MB)], -DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) AS [Backup Elapsed Time (sec)], -bs.backup_finish_date AS [Backup Finish Date] -FROM msdb.dbo.backupset AS bs WITH (NOLOCK) -WHERE DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) > 0 -AND bs.backup_size > 0 -AND bs.type = 'D' -- Change to L if you want Log backups -AND database_name = DB_NAME(DB_ID()) -ORDER BY bs.backup_finish_date DESC OPTION (RECOMPILE); - --- Are your backup sizes and times changing over time? - - - --- These three Pluralsight Courses go into more detail about how to run these queries and interpret the results - --- SQL Server 2014 DMV Diagnostic Queries – Part 1 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part1 - --- SQL Server 2014 DMV Diagnostic Queries – Part 2 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part2 - --- SQL Server 2014 DMV Diagnostic Queries – Part 3 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part3 - - - - + +-- SQL Server 2005 Diagnostic Information Queries +-- Glenn Berry +-- Last Modified: February 1, 2019 +-- https://www.sqlserverperformance.wordpress.com/ +-- https://www.sqlskills.com/blogs/glenn/ +-- Twitter: GlennAlanBerry + +-- Please listen to my Pluralsight courses +-- https://www.pluralsight.com/author/glenn-berry + +-- If you want to find all of our SQLskills SQL101 blog posts, check out https://www.sqlskills.com/help/sql101/ + +-- Many of these queries will not work if you have databases in 80 compatibility mode +-- Please make sure you are using the correct version of these diagnostic queries for your version of SQL Server + +--****************************************************************************** +--* Copyright (C) 2019 Glenn Berry, SQLskills.com +--* All rights reserved. +--* +--* For more scripts and sample code, check out +--* https://www.sqlskills.com/blogs/glenn +--* +--* You may alter this code for your own *non-commercial* purposes. You may +--* republish altered code as long as you include this copyright and give due credit. +--* +--* +--* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF +--* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED +--* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A +--* PARTICULAR PURPOSE. +--* +--****************************************************************************** + +-- Check the major product version to see if it is SQL Server 2005 +IF NOT EXISTS (SELECT * WHERE CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')) LIKE '9%') + BEGIN + DECLARE @ProductVersion varchar(128); + SET @ProductVersion = CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')); + RAISERROR ('Script does not match the ProductVersion [%s] of this instance. Many of these queries may not work on this version.' , 18 , 16 , @ProductVersion); + END + ELSE + PRINT N'You have the correct major version of SQL Server for this diagnostic information script'; + + +-- SQL Version information for current instance (Query 1) (Version Info) +SELECT @@SERVERNAME AS [Server Name], @@VERSION AS [SQL Server and OS Version Info]; +------ + +-- SQL Server 2005 is out of both mainstream and extended support from Microsoft +-- Build 9.0.5266 was the last cumulative update + + +-- SQL 2005 SP2 Builds SQL 2005 SP3 Builds SQL 2005 SP4 Builds +-- Build Description Build Description Build Description +-- 9.0.3042 SP2 RTM 9.0.4035 SP3 RTM +-- 9.0.3161 SP2 CU1 9.0.4207 SP3 CU1 +-- 9.0.3175 SP2 CU2 9.0.4211 SP3 CU2 +-- 9.0.3186 SP2 CU3 9.0.4220 SP3 CU3 +-- 9.0.3200 SP2 CU4 9.0.4226 SP3 CU4 +-- 9.0.3215 SP2 CU5 9.0.4230 SP3 CU5 +-- 9.0.3228 SP2 CU6 9.0.4266 SP3 CU6 +-- 9.0.3239 SP2 CU7 9.0.4273 SP3 CU7 +-- 9.0.3257 SP2 CU8 9.0.4285 SP3 CU8 +-- 9.0.3282 SP2 CU9 9.0.4294 SP3 CU9 +-- 9.0.3294 SP2 CU10 9.0.4305 SP3 CU10 +-- 9.0.3301 SP2 CU11 9.0.4309 SP3 CU11 ---> 9.0.5000 SP4 RTM +-- 9.0.3315 SP2 CU12 9.0.4311 SP3 CU12 ---> 9.0.5254 SP4 CU1 12/22/2010 +-- 9.0.3325 SP2 CU13 9.0.4315 SP3 CU13 +-- 9.0.3328 SP2 CU14 9.0.4317 SP3 CU14 ---> 9.0.5259 SP4 CU2 2/21/2011 +-- 9.0.3330 SP2 CU15 9.0.4325 SP3 CU15 ---> 9.0.5266 SP4 CU3 3/21/2011 +-- 9.0.3355 SP2 CU16 +-- 9.0.3356 SP2 CU17 + + + +-- The SQL Server 2005 builds that were released after SQL Server 2005 Service Pack 2 was released +-- http://support.microsoft.com/kb/937137 + +-- The SQL Server 2005 builds that were released after SQL Server 2005 Service Pack 3 was released +-- http://support.microsoft.com/kb/960598 + +-- The SQL Server 2005 builds that were released after SQL Server 2005 Service Pack 4 was released +-- http://support.microsoft.com/kb/2485757 + +-- SQL Server 2005 fell out of Mainsteam Support on April 12, 2011 +-- This means no more Service Packs or Cumulative Updates +-- SQL Server 2005 ended Extended Support on April 12, 2016 + +-- SQL Server 2005 Service Pack 4 +-- http://www.microsoft.com/en-us/download/details.aspx?id=7218 + + + +-- When was SQL Server installed (Query 2) (SQL Server Install Date) +SELECT @@SERVERNAME AS [Server Name], create_date AS [SQL Server Install Date] +FROM sys.server_principals WITH (NOLOCK) +WHERE name = N'NT AUTHORITY\SYSTEM' +OR name = N'NT AUTHORITY\NETWORK SERVICE' OPTION (RECOMPILE); +------ + +-- Tells you the date and time that SQL Server was installed +-- It is a good idea to know how old your instance is + + + +-- Get selected server properties (Query 3) (Server Properties) +SELECT SERVERPROPERTY('MachineName') AS [MachineName], SERVERPROPERTY('ServerName') AS [ServerName], +SERVERPROPERTY('InstanceName') AS [Instance], SERVERPROPERTY('IsClustered') AS [IsClustered], +SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS [ComputerNamePhysicalNetBIOS], +SERVERPROPERTY('Edition') AS [Edition], SERVERPROPERTY('ProductLevel') AS [ProductLevel], +SERVERPROPERTY('ProductVersion') AS [ProductVersion], SERVERPROPERTY('ProcessID') AS [ProcessID], +SERVERPROPERTY('Collation') AS [Collation], SERVERPROPERTY('IsFullTextInstalled') AS [IsFullTextInstalled], +SERVERPROPERTY('IsIntegratedSecurityOnly') AS [IsIntegratedSecurityOnly]; +------ + +-- This gives you a lot of useful information about your instance of SQL Server, +-- such as the ProcessID for SQL Server and your collation + + +-- Get SQL Server Agent jobs and Category information (Query 4) (SQL Server Agent Jobs) +SELECT sj.name AS [Job Name], sj.[description] AS [Job Description], SUSER_SNAME(sj.owner_sid) AS [Job Owner], +sj.date_created AS [Date Created], sj.[enabled] AS [Job Enabled], +sj.notify_email_operator_id, sj.notify_level_email, sc.name AS [CategoryName], +s.[enabled] AS [Sched Enabled], js.next_run_date, js.next_run_time +FROM msdb.dbo.sysjobs AS sj WITH (NOLOCK) +INNER JOIN msdb.dbo.syscategories AS sc WITH (NOLOCK) +ON sj.category_id = sc.category_id +LEFT OUTER JOIN msdb.dbo.sysjobschedules AS js WITH (NOLOCK) +ON sj.job_id = js.job_id +LEFT OUTER JOIN msdb.dbo.sysschedules AS s WITH (NOLOCK) +ON js.schedule_id = s.schedule_id +ORDER BY sj.name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent jobs, who owns them and how they are configured +-- Look for Agent jobs that are not owned by sa +-- Look for jobs that have a notify_email_operator_id set to 0 (meaning no operator) +-- Look for jobs that have a notify_level_email set to 0 (meaning no e-mail is ever sent) +-- +-- MSDN sysjobs documentation +-- http://msdn.microsoft.com/en-us/library/ms189817.aspx + + +-- Get SQL Server Agent Alert Information (Query 5) (SQL Server Agent Alerts) +SELECT name, event_source, message_id, severity, [enabled], has_notification, + delay_between_responses, occurrence_count, last_occurrence_date, last_occurrence_time +FROM msdb.dbo.sysalerts WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent Alerts (which are different from SQL Server Agent jobs) +-- Read more about Agent Alerts here: https://www.sqlskills.com/blogs/glenn/creating-sql-server-agent-alerts-for-critical-errors/ + + +-- Returns a list of all global trace flags that are enabled (Query 6) (Global Trace Flags) +DBCC TRACESTATUS (-1); +------ + +-- If no global trace flags are enabled, no results will be returned. +-- It is very useful to know what global trace flags are currently enabled as part of the diagnostic process. + +-- Common trace flags that should be enabled in most cases +-- TF 1117 - When growing a data file, grow all files at the same time so they remain the same size, reducing allocation contention points +-- http://support2.microsoft.com/kb/2154845 +-- +-- TF 1118 - Helps alleviate allocation contention in tempdb, SQL Server allocates full extents to each database object, +-- thereby eliminating the contention on SGAM pages (more important with older versions of SQL Server) +-- Recommendations to reduce allocation contention in SQL Server tempdb database +-- http://support2.microsoft.com/kb/2154845 + +-- TF 3226 - Supresses logging of successful database backup messages to the SQL Server Error Log +-- https://www.sqlskills.com/blogs/paul/fed-up-with-backup-success-messages-bloating-your-error-logs/ + + +-- Hardware Information from SQL Server 2005 (Query 7) (Hardware Info) +-- (Cannot distinguish between HT and multi-core) +SELECT cpu_count AS [Logical CPU Count], hyperthread_ratio AS [Hyperthread Ratio], +cpu_count/hyperthread_ratio AS [Physical CPU Count], +physical_memory_in_bytes/1048576 AS [Physical Memory (MB)] +FROM sys.dm_os_sys_info WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Gives you some good basic hardware information about your database server + + +-- Get System Manufacturer and model number from (Query 8) (System Manufacturer) +-- SQL Server Error log. This query might take a few seconds +-- if you have not recycled your error log recently +EXEC sys.xp_readerrorlog 0, 1, N'Manufacturer'; +------ + +-- This can help you determine the capabilities +-- and capacities of your database server +-- This often comes back with no results on SQL Server 2005 + + +-- Get processor description from Windows Registry (Query 9) (Processor Description) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\CentralProcessor\0', N'ProcessorNameString'; +------ + +-- Gives you the model number and rated clock speed of your processor(s) +-- Your processors may be running at less that the rated clock speed due +-- to the Windows Power Plan or hardware power management + +-- You can use CPU-Z to get your actual CPU core speed and a lot of other useful information +-- http://www.cpuid.com/softwares/cpu-z.html + +-- You can learn more about processor selection for SQL Server by following this link +-- https://www.sqlskills.com/blogs/glenn/processor-selection-for-sql-server/ + + + +-- Get configuration values for instance (Query 10) (Configuration Values) +SELECT name, value, value_in_use, minimum, maximum, [description], is_dynamic, is_advanced +FROM sys.configurations WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Focus on these settings:) +-- backup compression default (should be 1 in most cases) +-- clr enabled (only enable if it is needed) +-- cost threshold for parallelism (depends on your workload) +-- lightweight pooling (should be zero) +-- max degree of parallelism (depends on your workload) +-- max server memory (MB) (set to an appropriate value, not the default) +-- priority boost (should be zero) +-- remote admin connections (should be 1) + + +-- File names and paths for all user and system databases on instance (Query 11) (Database Filenames and Paths) +SELECT DB_NAME([database_id]) AS [Database Name], + [file_id], [name], physical_name, [type_desc], state_desc, + is_percent_growth, growth, + CONVERT(bigint, growth/128.0) AS [Growth in MB], + CONVERT(bigint, size/128.0) AS [Total Size in MB] +FROM sys.master_files WITH (NOLOCK) +ORDER BY DB_NAME([database_id]), [file_id] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- Are data files and log files on different drives? +-- Is everything on the C: drive? +-- Is TempDB on dedicated drives? +-- Is there only one TempDB data file? +-- Are all of the TempDB data files the same size? +-- Are there multiple data files for user databases? +-- Is percent growth enabled for any files (which is bad)? + + +-- Look for I/O requests taking longer than 15 seconds in the five most recent SQL Server Error Logs (Query 12) (IO Warnings) +CREATE TABLE #IOWarningResults(LogDate datetime, ProcessInfo sysname, LogText nvarchar(1000)); + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 0, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 1, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 2, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 3, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 4, 1, N'taking longer than 15 seconds'; + +SELECT LogDate, ProcessInfo, LogText +FROM #IOWarningResults +ORDER BY LogDate DESC; + +DROP TABLE #IOWarningResults; +------ + +-- Finding 15 second I/O warnings in the SQL Server Error Log is useful evidence of +-- poor I/O performance (which might have many different causes) +-- Look to see if you see any patterns in the results (same files, same drives, same time of day, etc.) + +-- Diagnostics in SQL Server help detect stalled and stuck I/O operations +-- https://support.microsoft.com/en-us/kb/897284 + + +-- Drive level latency information (Query 13) (Drive Level Latency) +-- Based on code from Jimmy May +SELECT tab.[Drive], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (io_stall_read_ms/num_of_reads) + END AS [Read Latency], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (io_stall_write_ms/num_of_writes) + END AS [Write Latency], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE (io_stall/(num_of_reads + num_of_writes)) + END AS [Overall Latency], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (num_of_bytes_read/num_of_reads) + END AS [Avg Bytes/Read], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (num_of_bytes_written/num_of_writes) + END AS [Avg Bytes/Write], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE ((num_of_bytes_read + num_of_bytes_written)/(num_of_reads + num_of_writes)) + END AS [Avg Bytes/Transfer] +FROM (SELECT LEFT(UPPER(mf.physical_name), 2) AS Drive, SUM(num_of_reads) AS num_of_reads, + SUM(io_stall_read_ms) AS io_stall_read_ms, SUM(num_of_writes) AS num_of_writes, + SUM(io_stall_write_ms) AS io_stall_write_ms, SUM(num_of_bytes_read) AS num_of_bytes_read, + SUM(num_of_bytes_written) AS num_of_bytes_written, SUM(io_stall) AS io_stall + FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS vfs + INNER JOIN sys.master_files AS mf WITH (NOLOCK) + ON vfs.database_id = mf.database_id AND vfs.file_id = mf.file_id + GROUP BY LEFT(UPPER(mf.physical_name), 2)) AS tab +ORDER BY [Overall Latency] OPTION (RECOMPILE); +------ + +-- Shows you the drive-level latency for reads and writes, in milliseconds +-- Latency above 20-25ms is usually a problem + + +-- Calculates average stalls per read, per write, and per total input/output for each database file (Query 14) (IO Stalls by File) +SELECT DB_NAME(fs.database_id) AS [Database Name], CAST(fs.io_stall_read_ms/(1.0 + fs.num_of_reads) AS NUMERIC(16,1)) AS [avg_read_stall_ms], +CAST(fs.io_stall_write_ms/(1.0 + fs.num_of_writes) AS NUMERIC(16,1)) AS [avg_write_stall_ms], +CAST((fs.io_stall_read_ms + fs.io_stall_write_ms)/(1.0 + fs.num_of_reads + fs.num_of_writes) AS NUMERIC(16,1)) AS [avg_io_stall_ms], +CONVERT(DECIMAL(18,2), mf.size/128.0) AS [File Size (MB)], mf.physical_name, mf.type_desc, fs.io_stall_read_ms, fs.num_of_reads, +fs.io_stall_write_ms, fs.num_of_writes, fs.io_stall_read_ms + fs.io_stall_write_ms AS [io_stalls], fs.num_of_reads + fs.num_of_writes AS [total_io] +FROM sys.dm_io_virtual_file_stats(null,null) AS fs +INNER JOIN sys.master_files AS mf WITH (NOLOCK) +ON fs.database_id = mf.database_id +AND fs.[file_id] = mf.[file_id] +ORDER BY avg_io_stall_ms DESC OPTION (RECOMPILE); +------ + +-- Helps determine which database files on the entire instance have the most I/O bottlenecks +-- This can help you decide whether certain LUNs are overloaded and whether you might +-- want to move some files to a different location or perhaps improve your I/O performance + + +-- Recovery model, log reuse wait description, log file size, log usage size (Query 15) (Database Properties) +-- and compatibility level for all databases on instance +SELECT db.[name] AS [Database Name], SUSER_SNAME(db.owner_sid) AS [Database Owner], db.recovery_model_desc AS [Recovery Model], +db.log_reuse_wait_desc AS [Log Reuse Wait Description], +ls.cntr_value AS [Log Size (KB)], lu.cntr_value AS [Log Used (KB)], +CAST(CAST(lu.cntr_value AS FLOAT) / CAST(ls.cntr_value AS FLOAT)AS DECIMAL(18,2)) * 100 AS [Log Used %], +db.[compatibility_level] AS [DB Compatibility Level], +db.page_verify_option_desc AS [Page Verify Option], db.is_auto_create_stats_on, db.is_auto_update_stats_on, +db.is_auto_update_stats_async_on, db.is_parameterization_forced, +db.snapshot_isolation_state_desc, db.is_read_committed_snapshot_on, +db.is_auto_close_on, db.is_auto_shrink_on, db.is_published +FROM sys.databases AS db WITH (NOLOCK) +INNER JOIN sys.dm_os_performance_counters AS lu WITH (NOLOCK) +ON db.name = lu.instance_name +INNER JOIN sys.dm_os_performance_counters AS ls WITH (NOLOCK) +ON db.name = ls.instance_name +WHERE lu.counter_name LIKE N'Log File(s) Used Size (KB)%' +AND ls.counter_name LIKE N'Log File(s) Size (KB)%' +AND ls.cntr_value > 0 OPTION (RECOMPILE); +------ + +-- Things to look at: +-- How many databases are on the instance? +-- What recovery models are they using? +-- What is the log reuse wait description? +-- How full are the transaction logs ? +-- What compatibility level are the databases on? +-- What is the Page Verify Option? (should be CHECKSUM) +-- Is Auto Update Statistics Asynchronously enabled? +-- Make sure auto_shrink and auto_close are not enabled! + + + +-- Missing Indexes for all databases by Index Advantage (Query 16) (Missing Indexes All Databases) +SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Getting missing index information for all of the databases on the instance is very useful +-- Look at last user seek time, number of user seeks to help determine source and importance +-- Also look at avg_user_impact and avg_total_user_cost to help determine importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + + + +-- Get VLF Counts for all databases on the instance (Query 17) (VLF Counts) +-- (adapted from Michelle Ufford) +CREATE TABLE #VLFInfo (FileID int, + FileSize bigint, StartOffset bigint, + FSeqNo bigint, [Status] bigint, + Parity bigint, CreateLSN numeric(38)); + +CREATE TABLE #VLFCountResults(DatabaseName sysname, VLFCount int); + +EXEC sp_MSforeachdb N'Use [?]; + + INSERT INTO #VLFInfo + EXEC sp_executesql N''DBCC LOGINFO([?])''; + + INSERT INTO #VLFCountResults + SELECT DB_NAME(), COUNT(*) + FROM #VLFInfo; + + TRUNCATE TABLE #VLFInfo;' + +SELECT DatabaseName, VLFCount +FROM #VLFCountResults +ORDER BY VLFCount DESC; + +DROP TABLE #VLFInfo; +DROP TABLE #VLFCountResults; +------ + +-- High VLF counts can affect write performance +-- and they can make full database restores and crash recovery take much longer +-- Try to keep your VLF counts under 200 in most cases + + + +-- Get CPU utilization by database (Query 18) (CPU Usage by Database) +WITH DB_CPU_Stats +AS +(SELECT pa.DatabaseID, DB_Name(pa.DatabaseID) AS [Database Name], SUM(qs.total_worker_time/1000) AS [CPU_Time_Ms] + FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) + CROSS APPLY (SELECT CONVERT(int, value) AS [DatabaseID] + FROM sys.dm_exec_plan_attributes(qs.plan_handle) + WHERE attribute = N'dbid') AS pa + GROUP BY DatabaseID) +SELECT ROW_NUMBER() OVER(ORDER BY [CPU_Time_Ms] DESC) AS [CPU Rank], + [Database Name], [CPU_Time_Ms] AS [CPU Time (ms)], + CAST([CPU_Time_Ms] * 1.0 / SUM([CPU_Time_Ms]) OVER() * 100.0 AS DECIMAL(5, 2)) AS [CPU Percent] +FROM DB_CPU_Stats +WHERE DatabaseID <> 32767 -- ResourceDB +ORDER BY [CPU Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most CPU resources on the instance +-- Note: This only reflects CPU usage from the currently cached query plans + + +-- Get I/O utilization by database (Query 19) (IO Usage By Database) +WITH Aggregate_IO_Statistics +AS +(SELECT DB_NAME(database_id) AS [Database Name], +CAST(SUM(num_of_bytes_read + num_of_bytes_written)/1048576 AS DECIMAL(12, 2)) AS io_in_mb +FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS [DM_IO_STATS] +GROUP BY database_id) +SELECT ROW_NUMBER() OVER(ORDER BY io_in_mb DESC) AS [I/O Rank], [Database Name], io_in_mb AS [Total I/O (MB)], + CAST(io_in_mb/ SUM(io_in_mb) OVER() * 100.0 AS DECIMAL(5,2)) AS [I/O Percent] +FROM Aggregate_IO_Statistics +ORDER BY [I/O Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most I/O resources on the instance + + +-- Get total buffer usage by database for current instance (Query 20) (Total Buffer Usage by Database) +-- This make take some time to run on a busy instance +WITH AggregateBufferPoolUsage +AS +(SELECT DB_NAME(database_id) AS [Database Name], +CAST(COUNT(*) * 8/1024.0 AS DECIMAL (10,2)) AS [CachedSize] +FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) +WHERE database_id <> 32767 -- ResourceDB +GROUP BY DB_NAME(database_id)) +SELECT ROW_NUMBER() OVER(ORDER BY CachedSize DESC) AS [Buffer Pool Rank], [Database Name], CachedSize AS [Cached Size (MB)], + CAST(CachedSize / SUM(CachedSize) OVER() * 100.0 AS DECIMAL(5,2)) AS [Buffer Pool Percent] +FROM AggregateBufferPoolUsage +ORDER BY [Buffer Pool Rank] OPTION (RECOMPILE); +------ + +-- Tells you how much memory (in the buffer pool) +-- is being used by each database on the instance + + +-- Clear Wait Stats with this command +-- DBCC SQLPERF('sys.dm_os_wait_stats', CLEAR); + +-- Isolate top waits for server instance since last restart or wait statistics clear (Query 21) (Top Waits) +WITH [Waits] +AS (SELECT wait_type, wait_time_ms/ 1000.0 AS [WaitS], + (wait_time_ms - signal_wait_time_ms) / 1000.0 AS [ResourceS], + signal_wait_time_ms / 1000.0 AS [SignalS], + waiting_tasks_count AS [WaitCount], + 100.0 * wait_time_ms / SUM (wait_time_ms) OVER() AS [Percentage], + ROW_NUMBER() OVER(ORDER BY wait_time_ms DESC) AS [RowNum] + FROM sys.dm_os_wait_stats WITH (NOLOCK) + WHERE [wait_type] NOT IN ( + N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', + N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', + N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', + N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', + N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', + N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', + N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', + N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', + N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', + N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', + N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', + N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', + N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', + N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', + N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', + N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', + N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', + N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', + N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') + AND waiting_tasks_count > 0) +SELECT + MAX (W1.wait_type) AS [WaitType], + CAST (MAX (W1.Percentage) AS DECIMAL (5,2)) AS [Wait Percentage], + CAST ((MAX (W1.WaitS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgWait_Sec], + CAST ((MAX (W1.ResourceS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgRes_Sec], + CAST ((MAX (W1.SignalS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgSig_Sec], + CAST (MAX (W1.WaitS) AS DECIMAL (16,2)) AS [Wait_Sec], + CAST (MAX (W1.ResourceS) AS DECIMAL (16,2)) AS [Resource_Sec], + CAST (MAX (W1.SignalS) AS DECIMAL (16,2)) AS [Signal_Sec], + MAX (W1.WaitCount) AS [Wait Count], + CAST (N'https://www.sqlskills.com/help/waits/' + W1.wait_type AS XML) AS [Help/Info URL] +FROM Waits AS W1 +INNER JOIN Waits AS W2 +ON W2.RowNum <= W1.RowNum +GROUP BY W1.RowNum, W1.wait_type +HAVING SUM (W2.Percentage) - MAX (W1.Percentage) < 99 -- percentage threshold +OPTION (RECOMPILE); +------ + +-- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure + +-- SQL Server Wait Types Library (Paul Randal) +-- https://www.sqlskills.com/help/waits/ + +-- The SQL Server Wait Type Repository +-- http://blogs.msdn.com/b/psssql/archive/2009/11/03/the-sql-server-wait-type-repository.aspx + +-- Wait statistics, or please tell me where it hurts +-- https://www.sqlskills.com/blogs/paul/wait-statistics-or-please-tell-me-where-it-hurts/ + +-- SQL Server 2005 Performance Tuning using the Waits and Queues +-- http://technet.microsoft.com/en-us/library/cc966413.aspx + +-- sys.dm_os_wait_stats (Transact-SQL) +-- http://msdn.microsoft.com/en-us/library/ms179984(v=sql.105).aspx + + + +-- Signal Waits for instance (Query 22) (Signal Waits) +SELECT CAST(100.0 * SUM(signal_wait_time_ms) / SUM (wait_time_ms) AS NUMERIC(20,2)) AS [% Signal (CPU) Waits], +CAST(100.0 * SUM(wait_time_ms - signal_wait_time_ms) / SUM (wait_time_ms) AS NUMERIC(20,2)) AS [% Resource Waits] +FROM sys.dm_os_wait_stats WITH (NOLOCK) +WHERE wait_type NOT IN ( + N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', + N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', + N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', + N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', + N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', + N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', + N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', + N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', + N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', + N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', + N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', + N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', + N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', + N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', + N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', + N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', + N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', + N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', + N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') OPTION (RECOMPILE); +------ + +-- Signal Waits above 10-15% is usually a confirming sign of CPU pressure +-- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure +-- Resource waits are non-CPU related waits + + +-- Get logins that are connected and how many sessions they have (Query 23) (Connection Counts) +SELECT login_name, [program_name], COUNT(session_id) AS [session_count] +FROM sys.dm_exec_sessions WITH (NOLOCK) +GROUP BY login_name, [program_name] +ORDER BY COUNT(session_id) DESC OPTION (RECOMPILE); +------ + +-- This can help characterize your workload and +-- determine whether you are seeing a normal level of activity + + +-- Get a count of SQL connections by IP address (Query 24) (Connection Counts by IP Address) +SELECT ec.client_net_address, es.[program_name], es.[host_name], es.login_name, +COUNT(ec.session_id) AS [connection count] +FROM sys.dm_exec_sessions AS es WITH (NOLOCK) +INNER JOIN sys.dm_exec_connections AS ec WITH (NOLOCK) +ON es.session_id = ec.session_id +GROUP BY ec.client_net_address, es.[program_name], es.[host_name], es.login_name +ORDER BY ec.client_net_address, es.[program_name] OPTION (RECOMPILE); +------ + +-- This helps you figure where your database load is coming from +-- and verifies connectivity from other machines + + +-- Get Average Task Counts (run multiple times) (Query 25) (Avg Task Counts) +SELECT AVG(current_tasks_count) AS [Avg Task Count], +AVG(runnable_tasks_count) AS [Avg Runnable Task Count], +AVG(pending_disk_io_count) AS [Avg Pending DiskIO Count] +FROM sys.dm_os_schedulers WITH (NOLOCK) +WHERE scheduler_id < 255 OPTION (RECOMPILE); +------ + +-- Sustained values above 10 suggest further investigation in that area +-- High Avg Task Counts are often caused by blocking/deadlocking or other resource contention + +-- Sustained values above 1 suggest further investigation in that area +-- High Avg Runnable Task Counts are a good sign of CPU pressure +-- High Avg Pending DiskIO Counts are a sign of disk pressure + +-- How to Do Some Very Basic SQL Server Monitoring +-- https://www.sqlskills.com/blogs/glenn/how-to-do-some-very-basic-sql-server-monitoring/ + + + +-- Get CPU Utilization History for last 256 minutes (in one minute intervals) (Query 26) (CPU Utilization History) +-- This version works with SQL Server 2005 +DECLARE @ts_now bigint; +SET @ts_now = (SELECT cpu_ticks / CONVERT(float, cpu_ticks_in_ms) FROM sys.dm_os_sys_info WITH (NOLOCK)); + +SELECT TOP(256) SQLProcessUtilization AS [SQL Server Process CPU Utilization], + SystemIdle AS [System Idle Process], + 100 - SystemIdle - SQLProcessUtilization AS [Other Process CPU Utilization], + DATEADD(ms, -1 * (@ts_now - [timestamp]), GETDATE()) AS [Event Time] +FROM ( + SELECT record.value('(./Record/@id)[1]', 'int') AS record_id, + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') + AS [SystemIdle], + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', + 'int') + AS [SQLProcessUtilization], [timestamp] + FROM ( + SELECT [timestamp], CONVERT(xml, record) AS [record] + FROM sys.dm_os_ring_buffers WITH (NOLOCK) + WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' + AND record LIKE '%%') AS x + ) AS y +ORDER BY record_id DESC OPTION (RECOMPILE); +------ + +-- Look at the trend over the entire period. +-- Also look at high sustained Other Process CPU Utilization values + + +-- Page Life Expectancy (PLE) value for each NUMA node in current instance (Query 27) (PLE by NUMA Node) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], instance_name, cntr_value AS [Page Life Expectancy] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Buffer Node%' -- Handles named instances +AND counter_name = N'Page life expectancy' OPTION (RECOMPILE); +------ + +-- PLE is a good measurement of memory pressure. +-- Higher PLE is better. Watch the trend over time, not the absolute value. +-- This will only return one row for non-NUMA systems. + +-- Page Life Expectancy isnt what you think +-- https://www.sqlskills.com/blogs/paul/page-life-expectancy-isnt-what-you-think/ + + + +-- Memory Grants Pending value for current instance (Query 28) (Memory Grants Pending) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], cntr_value AS [Memory Grants Pending] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Memory Manager%' -- Handles named instances +AND counter_name = N'Memory Grants Pending' OPTION (RECOMPILE); +------ + +-- Memory Grants Pending above zero for a sustained period is a very strong indicator of memory pressure + + +-- Memory Clerk Usage for instance (Query 29) (Memory Clerk Usage) +-- Look for high value for CACHESTORE_SQLCP (Ad-hoc query plans) +SELECT TOP(10) [type] AS [Memory Clerk Type], SUM(single_pages_kb)/1024 AS [SPA Memory Usage (MB)] +FROM sys.dm_os_memory_clerks WITH (NOLOCK) +GROUP BY [type] +ORDER BY SUM(single_pages_kb) DESC OPTION (RECOMPILE); +------ + +-- CACHESTORE_SQLCP SQL Plans +-- These are cached SQL statements or batches that aren't in stored procedures, functions and triggers +-- Watch out for high values for CACHESTORE_SQLCP + +-- CACHESTORE_OBJCP Object Plans +-- These are compiled plans for stored procedures, functions and triggers + + + +-- Find single-use, ad-hoc queries that are bloating the plan cache (Query 30) (Ad hoc Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], t.[text] AS [Query Text], +cp.objtype AS [Object Type], cp.cacheobjtype AS [Cache Object Type], +cp.size_in_bytes/1024 AS [Plan Size in KB] +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +WHERE cp.cacheobjtype = N'Compiled Plan' +AND cp.objtype IN (N'Adhoc', N'Prepared') +AND cp.usecounts = 1 +ORDER BY cp.size_in_bytes DESC, DB_NAME(t.[dbid]) OPTION (RECOMPILE); +------ + +-- Gives you the text and size of single-use ad-hoc queries that waste space in plan cache +-- SQL Server Agent creates lots of ad-hoc, single use query plans in SQL Server 2005 +-- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this. +-- Enabling forced parameterization for the database can help, but test first! + +-- Plan cache, adhoc workloads and clearing the single-use plan cache bloat +-- https://www.sqlskills.com/blogs/kimberly/plan-cache-adhoc-workloads-and-clearing-the-single-use-plan-cache-bloat/ + + + +-- Database specific queries ***************************************************************** + +-- **** Please switch to a user database that you are interested in! ***** +USE YourDatabaseName; -- make sure to change to an actual database on your instance, not the master system database +GO + +-- Individual File Sizes and space available for current database (Query 31) (File Sizes and Space) +SELECT f.name AS [File Name] , f.physical_name AS [Physical Name], +CAST((f.size/128.0) AS DECIMAL(15,2)) AS [Total Size in MB], +CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) +AS [Available Space In MB], [file_id], fg.name AS [Filegroup Name] +FROM sys.database_files AS f WITH (NOLOCK) +LEFT OUTER JOIN sys.data_spaces AS fg WITH (NOLOCK) +ON f.data_space_id = fg.data_space_id OPTION (RECOMPILE); +------ + +-- Look at how large and how full the files are and where they are located +-- Make sure the transaction log is not full!! + + + +-- I/O Statistics by file for the current database (Query 32) (IO Stats By File) +SELECT DB_NAME(DB_ID()) AS [Database Name], df.name AS [Logical Name], vfs.[file_id], +df.physical_name AS [Physical Name], vfs.num_of_reads, vfs.num_of_writes, vfs.io_stall_read_ms, vfs.io_stall_write_ms, +CAST(100. * vfs.io_stall_read_ms/(vfs.io_stall_read_ms + vfs.io_stall_write_ms) AS DECIMAL(10,1)) AS [IO Stall Reads Pct], +CAST(100. * vfs.io_stall_write_ms/(vfs.io_stall_write_ms + vfs.io_stall_read_ms) AS DECIMAL(10,1)) AS [IO Stall Writes Pct], +(vfs.num_of_reads + vfs.num_of_writes) AS [Writes + Reads], +CAST(vfs.num_of_bytes_read/1048576.0 AS DECIMAL(10, 2)) AS [MB Read], +CAST(vfs.num_of_bytes_written/1048576.0 AS DECIMAL(10, 2)) AS [MB Written], +CAST(100. * vfs.num_of_reads/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Reads Pct], +CAST(100. * vfs.num_of_writes/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Write Pct], +CAST(100. * vfs.num_of_bytes_read/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Read Bytes Pct], +CAST(100. * vfs.num_of_bytes_written/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Written Bytes Pct] +FROM sys.dm_io_virtual_file_stats(DB_ID(), NULL) AS vfs +INNER JOIN sys.database_files AS df WITH (NOLOCK) +ON vfs.[file_id]= df.[file_id] OPTION (RECOMPILE); +------ + +-- This helps you characterize your workload better from an I/O perspective +-- It helps you determine whether you has an OLTP or DW/DSS type of workload + + + +-- Cached SP's By Execution Count (SQL 2005) (Query 33) (SP Execution Counts) +SELECT TOP(25) OBJECT_NAME(objectid, dbid) AS [SP Name], qt.[text] AS [SP Text], +qs.execution_count AS [Execution Count], +qs.execution_count/DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Calls/Minute], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], +qs.total_worker_time AS [TotalWorkerTime], +qs.total_elapsed_time/qs.execution_count AS [AvgElapsedTime], +qs.max_logical_reads, qs.max_logical_writes, qs.total_physical_reads, +DATEDIFF(Minute, qs.creation_time, GetDate()) AS [Age in Cache] +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.[sql_handle]) AS qt +WHERE qt.[dbid] = DB_ID() +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Tells you which cached stored procedures are called the most often +-- This helps you characterize and baseline your workload + + +-- Top Cached SPs By Avg Elapsed Time (SQL 2005) (Query 34) (SP Avg Elapsed Time) +SELECT TOP(25) OBJECT_NAME(objectid, dbid) AS [SP Name], qt.[text] AS [SP Text], +ISNULL(qs.total_elapsed_time/qs.execution_count, 0) AS [AvgElapsedTime], +qs.execution_count AS [Execution Count], qs.total_worker_time AS [TotalWorkerTime], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.creation_time, GETDATE()), 0) AS [Calls/Minute], +qs.max_logical_reads, qs.max_logical_writes, +DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Age in Cache] +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.[sql_handle]) AS qt +WHERE qt.[dbid] = DB_ID() +ORDER BY qs.total_elapsed_time/qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- This helps you find long-running cached stored procedures that +-- may be easy to optimize with standard query tuning techniques + +-- Cached SP's By Worker Time (SQL 2005) Worker time relates to CPU cost (Query 35) (SP Worker Time) +SELECT TOP(25) OBJECT_NAME(objectid, dbid) AS [SP Name], qt.[text] AS [SP Text], +qs.total_worker_time AS [TotalWorkerTime], qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], +qs.execution_count AS [Execution Count], +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.creation_time, GETDATE()), 0) AS [Calls/Minute], +ISNULL(qs.total_elapsed_time/qs.execution_count, 0) AS [AvgElapsedTime], +qs.max_logical_reads, qs.max_logical_writes, +DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Age in Cache] +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.[sql_handle]) AS qt +WHERE qt.[dbid] = DB_ID() +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a CPU perspective +-- You should look at this if you see signs of CPU pressure + +-- Cached SP's By Logical Reads (SQL 2005) Logical reads relate to memory pressure (Query 36) (SP Logical Reads) +SELECT TOP(25) OBJECT_NAME(objectid, dbid) AS [SP Name], qt.[text] AS [SP Text], +total_logical_reads, qs.max_logical_reads, +total_logical_reads/qs.execution_count AS [AvgLogicalReads], qs.execution_count AS [Execution Count], +qs.execution_count/DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Calls/Minute], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], +qs.total_worker_time AS [TotalWorkerTime], +qs.total_elapsed_time/qs.execution_count AS [AvgElapsedTime], +qs.total_logical_writes, + qs.max_logical_writes, qs.total_physical_reads, +DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Age in Cache] +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.[sql_handle]) AS qt +WHERE qt.[dbid] = DB_ID() +ORDER BY total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a memory perspective +-- You should look at this if you see signs of memory pressure + + +-- Cached SP's By Physical Reads (SQL 2005) Physical reads relate to read I/O pressure (Query 37) (SP Physical Reads) +SELECT TOP(25) OBJECT_NAME(objectid, dbid) AS [SP Name], qt.[text] AS [SP Text], +qs.total_physical_reads, total_logical_reads, qs.max_logical_reads, +total_logical_reads/qs.execution_count AS [AvgLogicalReads], qs.execution_count AS [Execution Count], +qs.execution_count/DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Calls/Minute], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], +qs.total_worker_time AS [TotalWorkerTime], +qs.total_elapsed_time/qs.execution_count AS [AvgElapsedTime], +DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Age in Cache] +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.[sql_handle]) AS qt +WHERE qt.[dbid] = DB_ID() -- Filter by current database +AND qs.total_physical_reads > 0 +ORDER BY qs.total_physical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a read I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + +-- Top Cached SPs By Total Logical Writes (SQL 2005) (Query 38) (SP Logical Writes) +-- Logical writes relate to both memory and disk I/O pressure +SELECT TOP(25) OBJECT_NAME(objectid, dbid) AS [SP Name], qt.[text] AS [SP Text], +qs.total_logical_writes, qs.max_logical_writes, +qs.total_logical_writes/qs.execution_count AS [AvgLogicalWrites], qs.execution_count AS [Execution Count], +qs.execution_count/DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Calls/Minute], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], +qs.total_worker_time AS [TotalWorkerTime], +qs.total_elapsed_time/qs.execution_count AS [AvgElapsedTime], +qs.total_physical_reads, +DATEDIFF(Minute, qs.creation_time, GETDATE()) AS [Age in Cache] +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.[sql_handle]) AS qt +WHERE qt.[dbid] = DB_ID() +AND qs.total_logical_writes > 0 +ORDER BY total_logical_writes DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a write I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + +-- Lists the top statements by average input/output usage for the current database (Query 39) (Top IO Statements) +SELECT TOP(50) OBJECT_NAME(qt.objectid, dbid) AS [SP Name], +(qs.total_logical_reads + qs.total_logical_writes) /qs.execution_count AS [Avg IO], qs.execution_count AS [Execution Count], +SUBSTRING(qt.[text],qs.statement_start_offset/2, + (CASE + WHEN qs.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE qs.statement_end_offset + END - qs.statement_start_offset)/2) AS [Query Text] +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt +WHERE qt.[dbid] = DB_ID() +ORDER BY [Avg IO] DESC OPTION (RECOMPILE); +------ + +-- Helps you find the most expensive statements for I/O by SP + + + +-- Possible Bad NC Indexes (writes > reads) (Query 40) (Bad NC Indexes) +SELECT OBJECT_NAME(s.[object_id]) AS [Table Name], i.name AS [Index Name], i.index_id, +i.is_disabled, i.is_hypothetical, i.has_filter, i.fill_factor, +user_updates AS [Total Writes], user_seeks + user_scans + user_lookups AS [Total Reads], +user_updates - (user_seeks + user_scans + user_lookups) AS [Difference] +FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON s.[object_id] = i.[object_id] +AND i.index_id = s.index_id +WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 +AND s.database_id = DB_ID() +AND s.user_updates > (s.user_seeks + s.user_scans + s.user_lookups) +AND i.index_id > 1 AND i.[type_desc] = N'NONCLUSTERED' +AND i.is_primary_key = 0 AND i.is_unique_constraint = 0 +ORDER BY [Difference] DESC, [Total Writes] DESC, [Total Reads] ASC OPTION (RECOMPILE); +------ + +-- Look for indexes with high numbers of writes and zero or very low numbers of reads +-- Consider your complete workload, and how long your instance has been running +-- Investigate further before dropping an index! + + +-- Missing Indexes for current database by Index Advantage (Query 41) (Missing Indexes) +SELECT DISTINCT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact, +OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows] +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON p.[object_id] = mid.[object_id] +WHERE mid.database_id = DB_ID() +AND p.index_id < 2 +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Look at index advantage, last user seek time, number of user seeks to help determine source and importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + + +-- Find missing index warnings for cached plans in the current database (Query 42) (Missing Index Warnings) +-- Note: This query could take some time on a busy instance +SELECT TOP(25) OBJECT_NAME(objectid) AS [ObjectName], + query_plan, cp.objtype, cp.usecounts +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp +WHERE CAST(query_plan AS NVARCHAR(MAX)) LIKE N'%MissingIndex%' +AND dbid = DB_ID() +ORDER BY cp.usecounts DESC OPTION (RECOMPILE); +------ + +-- Helps you connect missing indexes to specific stored procedures +-- This can help you decide whether to add them or not + + +-- Breaks down buffers used by current database by object (table, index) in the buffer cache (Query 43) (Buffer Usage) +-- Note: This query could take some time on a busy instance +SELECT OBJECT_NAME(p.[object_id]) AS [ObjectName], +p.index_id, COUNT(*)/128 AS [buffer size(MB)], COUNT(*) AS [buffer_count] +FROM sys.allocation_units AS a +INNER JOIN sys.dm_os_buffer_descriptors AS b WITH (NOLOCK) +ON a.allocation_unit_id = b.allocation_unit_id +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON a.container_id = p.hobt_id +WHERE b.database_id = DB_ID() +AND p.[object_id] > 100 +GROUP BY p.[object_id], p.index_id +ORDER BY buffer_count DESC OPTION (RECOMPILE); +------ + +-- Tells you what tables and indexes are using the most memory in the buffer cache + + +-- Get Table names, row counts (Query 44) (Table Sizes) +SELECT SCHEMA_NAME(o.Schema_ID) AS [Schema Name], OBJECT_NAME(p.object_id) AS [ObjectName], +SUM(p.Rows) AS [RowCount] +FROM sys.partitions AS p WITH (NOLOCK) +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON p.object_id = o.object_id +WHERE index_id < 2 --ignore the partitions from the non-clustered index if any +AND OBJECT_NAME(p.object_id) NOT LIKE N'sys%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'spt_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'queue_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filestream_tombstone%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'fulltext%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'ifts_comp_fragment%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filetable_updates%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'xml_index_nodes%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'sqlagent_job%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'plan_persist%' +GROUP BY SCHEMA_NAME(o.Schema_ID), p.object_id +ORDER BY SUM(p.Rows) DESC OPTION (RECOMPILE); +------ + +-- Gives you an idea of table sizes + + +-- Detect blocking (run multiple times) (Query 45) (Detect Blocking) +SELECT t1.resource_type AS [lock type], DB_NAME(resource_database_id) AS [database], +t1.resource_associated_entity_id AS [blk object],t1.request_mode AS [lock req], --- lock requested +t1.request_session_id AS [waiter sid], t2.wait_duration_ms AS [wait time], -- spid of waiter +(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK) -- get sql for waiter +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) +WHERE r.session_id = t1.request_session_id) AS [waiter_batch], +(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, + (CASE WHEN r.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE r.statement_end_offset END - r.statement_start_offset)/2) +FROM sys.dm_exec_requests AS r WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt +WHERE r.session_id = t1.request_session_id) AS [waiter_stmt], -- statement blocked +t2.blocking_session_id AS [blocker sid], -- spid of blocker +(SELECT [text] FROM sys.sysprocesses AS p -- get sql for blocker +CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) +WHERE p.spid = t2.blocking_session_id) AS [blocker_stmt] +FROM sys.dm_tran_locks AS t1 WITH (NOLOCK) +INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK) +ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE); +------ + +-- Helps troubleshoot blocking and deadlocking issues +-- The results will change from second to second on a busy system +-- You should run this query multiple times when you see signs of blocking + + +-- When were Statistics last updated on all indexes? (Query 46) (Statistics Update) +SELECT SCHEMA_NAME(o.Schema_ID) + N'.' + o.NAME AS [Object Name], o.type_desc AS [Object Type], + i.name AS [Index Name], STATS_DATE(i.[object_id], i.index_id) AS [Statistics Date], + s.auto_created, s.no_recompute, s.user_created, st.row_count, st.used_page_count +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON o.[object_id] = i.[object_id] +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.stats_id +INNER JOIN sys.dm_db_partition_stats AS st WITH (NOLOCK) +ON o.[object_id] = st.[object_id] +AND i.[index_id] = st.[index_id] +WHERE o.[type] IN ('U', 'V') +AND st.row_count > 0 +ORDER BY STATS_DATE(i.[object_id], i.index_id) DESC OPTION (RECOMPILE); +------ + +-- Helps discover possible problems with out-of-date statistics +-- Also gives you an idea which indexes are the most active + + + +-- Get fragmentation info for all indexes above a certain size in the current database (Query 47) (Index Fragmentation) +-- Note: This query could take some time on a very large database +SELECT DB_NAME(ps.database_id) AS [Database Name], OBJECT_NAME(ps.OBJECT_ID) AS [Object Name], +i.name AS [Index Name], ps.index_id, ps.index_type_desc, ps.avg_fragmentation_in_percent, +ps.fragment_count, ps.page_count, i.fill_factor +FROM sys.dm_db_index_physical_stats(DB_ID(),NULL, NULL, NULL , N'LIMITED') AS ps +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ps.[object_id] = i.[object_id] +AND ps.index_id = i.index_id +WHERE ps.database_id = DB_ID() +AND ps.page_count > 2500 +ORDER BY ps.avg_fragmentation_in_percent DESC OPTION (RECOMPILE); +------ + +-- Helps determine whether you have framentation in your relational indexes +-- and how effective your index maintenance strategy is + + +--- Index Read/Write stats (all tables in current DB) ordered by Reads (Query 48) (Overall Index Usage - Reads) +SELECT OBJECT_NAME(s.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, + user_seeks + user_scans + user_lookups AS [Reads], s.user_updates AS [Writes], + i.type_desc AS [IndexType], i.fill_factor AS [FillFactor] +FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON s.[object_id] = i.[object_id] +WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +ORDER BY user_seeks + user_scans + user_lookups DESC OPTION (RECOMPILE); -- Order by reads +------ + +-- Show which indexes in the current database are most active for Reads + + +--- Index Read/Write stats (all tables in current DB) ordered by Writes (Query 49) (Overall Index Usage - Writes) +SELECT OBJECT_NAME(s.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, + s.user_updates AS [Writes], user_seeks + user_scans + user_lookups AS [Reads], + i.type_desc AS [IndexType], i.fill_factor AS [FillFactor], + s.last_system_update, s.last_user_update +FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON s.[object_id] = i.[object_id] +WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +ORDER BY s.user_updates DESC OPTION (RECOMPILE); -- Order by writes +------ + +-- Show which indexes in the current database are most active for Writes + + +-- Get lock waits for current database (Query 50) (Lock Waits) +SELECT o.name AS [table_name], i.name AS [index_name], ios.index_id, ios.partition_number, + SUM(ios.row_lock_wait_count) AS [total_row_lock_waits], + SUM(ios.row_lock_wait_in_ms) AS [total_row_lock_wait_in_ms], + SUM(ios.page_lock_wait_count) AS [total_page_lock_waits], + SUM(ios.page_lock_wait_in_ms) AS [total_page_lock_wait_in_ms], + SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) AS [total_lock_wait_in_ms] +FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) AS ios +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON ios.[object_id] = o.[object_id] +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ios.[object_id] = i.[object_id] +AND ios.index_id = i.index_id +WHERE o.[object_id] > 100 +GROUP BY o.name, i.name, ios.index_id, ios.partition_number +HAVING SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) > 0 +ORDER BY total_lock_wait_in_ms DESC OPTION (RECOMPILE); +------ + +-- This query is helpful for troubleshooting blocking and deadlocking issues + + +-- Look at recent Full backups for the current database (Query 51) (Recent Full Backups) +SELECT TOP (30) bs.server_name, bs.database_name AS [Database Name], +CONVERT (BIGINT, bs.backup_size / 1048576 ) AS [Backup Size (MB)], +DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) AS [Backup Elapsed Time (sec)], +bs.backup_finish_date AS [Backup Finish Date], bmf.physical_device_name AS [Backup Location], bmf.physical_block_size +FROM msdb.dbo.backupset AS bs WITH (NOLOCK) +INNER JOIN msdb.dbo.backupmediafamily AS bmf WITH (NOLOCK) +ON bs.media_set_id = bmf.media_set_id +WHERE DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) > 0 +AND bs.backup_size > 0 +AND bs.type = 'D' -- Change to L if you want Log backups +AND database_name = DB_NAME(DB_ID()) +ORDER BY bs.backup_finish_date DESC OPTION (RECOMPILE); +------ + +-- Are your backup sizes and times changing over time? +-- Are you using backup compression? +-- Are you using backup checksums? +-- Are you doing copy_only backups? +-- Have you done any backup tuning with striped backups, or changing the parameters of the backup command? + + + +-- These five Pluralsight Courses go into more detail about how to run these queries and interpret the results + +-- SQL Server 2017: Diagnosing Performance Issues with DMVs +-- https://bit.ly/2FqCeti + +-- SQL Server 2017: Diagnosing Configuration Issues with DMVs +-- https://bit.ly/2MSUDUL + + +-- SQL Server 2014 DMV Diagnostic Queries Part 1 +-- https://bit.ly/2plxCer + +-- SQL Server 2014 DMV Diagnostic Queries Part 2 +-- https://bit.ly/2IuJpzI + +-- SQL Server 2014 DMV Diagnostic Queries Part 3 +-- https://bit.ly/2FIlCPb + + + +-- Sign up for Microsoft Visual Studio Dev Essentials and get a free three month pass to Pluralsight + +-- Microsoft Visual Studio Dev Essentials +-- http://bit.ly/1q6xbDL + + +-- Sign up for Microsoft Azure Essentials and get lots of free Azure usage credits, MCP exam voucher, three month Pluralsight subscription + +-- Microsoft Azure Essentials +-- https://bit.ly/2JMWe8x + + +-- August 2017 blog series about upgrading and migrating SQL Server +-- https://bit.ly/2ftKVrX + + diff --git a/Scripts/SQL Server 2008 Diagnostic Information Queries.sql b/Scripts/SQL Server 2008 Diagnostic Information Queries.sql index 3912317d..270afe77 100644 --- a/Scripts/SQL Server 2008 Diagnostic Information Queries.sql +++ b/Scripts/SQL Server 2008 Diagnostic Information Queries.sql @@ -1,1182 +1,1321 @@ - --- SQL Server 2008 Diagnostic Information Queries --- Glenn Berry --- CY 2016 --- Last Modified: April 23, 2016 --- http://sqlserverperformance.wordpress.com/ --- http://sqlskills.com/blogs/glenn/ --- Twitter: GlennAlanBerry - --- Please listen to my Pluralsight courses --- http://www.pluralsight.com/author/glenn-berry - --- Many of these queries will not work if you have databases in 80 compatibility mode --- Please make sure you are using the correct version of these diagnostic queries for your version of SQL Server - ---****************************************************************************** ---* Copyright (C) 2016 Glenn Berry, SQLskills.com ---* All rights reserved. ---* ---* For more scripts and sample code, check out ---* http://sqlskills.com/blogs/glenn ---* ---* You may alter this code for your own *non-commercial* purposes. You may ---* republish altered code as long as you include this copyright and give due credit. ---* ---* ---* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ---* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED ---* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A ---* PARTICULAR PURPOSE. ---* ---****************************************************************************** - --- Check the major product version to see if it is SQL Server 2008 -IF NOT EXISTS (SELECT * WHERE CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')) LIKE '10%') - BEGIN - DECLARE @ProductVersion varchar(128) = CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')); - RAISERROR ('Script does not match the ProductVersion [%s] of this instance. Many of these queries may not work on this version.' , 18 , 16 , @ProductVersion); - END - ELSE - PRINT N'You have the correct major version of SQL Server for this diagnostic information script'; - - --- Instance level queries ******************************* - --- SQL and OS Version information for current instance (Query 1) (Version Info) -SELECT @@SERVERNAME AS [Server Name], @@VERSION AS [SQL Server and OS Version Info]; - - --- SQL Server 2008 RTM Builds SQL Server 2008 SP1 Builds SQL Server 2008 SP2 Builds SQL Server 2008 SP3 Builds SQL Server 2008 SP4 Builds --- Build Description Build Description Build Description Build Description Build Description --- 10.0.1600 Gold RTM --- 10.0.1763 RTM CU1 --- 10.0.1779 RTM CU2 --- 10.0.1787 RTM CU3 --> 10.0.2531 SP1 RTM --- 10.0.1798 RTM CU4 --> 10.0.2710 SP1 CU1 --- 10.0.1806 RTM CU5 --> 10.0.2714 SP1 CU2 --- 10.0.1812 RTM CU6 --> 10.0.2723 SP1 CU3 --- 10.0.1818 RTM CU7 --> 10.0.2734 SP1 CU4 --- 10.0.1823 RTM CU8 --> 10.0.2746 SP1 CU5 --- 10.0.1828 RTM CU9 --> 10.0.2757 SP1 CU6 --- 10.0.1835 RTM CU10 --> 10.0.2766 SP1 CU7 --- RTM Branch Retired --> 10.0.2775 SP1 CU8 --> 10.0.4000 SP2 RTM --- 10.0.2789 SP1 CU9 --- 10.0.2799 SP1 CU10 --- 10.0.2804 SP1 CU11 --> 10.0.4266 SP2 CU1 --- 10.0.2808 SP1 CU12 --> 10.0.4272 SP2 CU2 --- 10.0.2816 SP1 CU13 --> 10.0.4279 SP2 CU3 --- 10.0.2821 SP1 CU14 --> 10.0.4285 SP2 CU4 --> 10.0.5500 SP3 RTM --- 10.0.2847 SP1 CU15 --> 10.0.4316 SP2 CU5 --- 10.0.2850 SP1 CU16 --> 10.0.4321 SP2 CU6 --> 10.0.5766 SP3 CU1 10/17/2011 --- SP1 Branch Retired --> 10.0.4323 SP2 CU7 --> 10.0.5768 SP3 CU2 11/21/2011 --- 10.0.4326 SP2 CU8 --> 10.0.5770 SP3 CU3 1/16/2012 --- 10.0.4330 SP2 CU9 --> 10.0.5775 SP3 CU4 3/19/2012 --- 10.0.4332 SP2 CU10 --> 10.0.5785 SP3 CU5 5/21/2012 --- 10.0.4333 SP2 CU11 --> 10.0.5788 SP3 CU6 7/16/2012 --- SP2 Branch Retired 10.0.5794 SP3 CU7 9/17/2012 --- 10.0.5828 SP3 CU8 11/19/2012 --- 10.0.5829 SP3 CU9 1/21/2013 --- 10.0.5835 SP3 CU10 3/19/2013 --- 10.0.5841 SP3 CU11 5/20/2013 --- 10.0.5844 SP3 CU12 7/15/2013 --- 10.0.5846 SP3 CU13 9/16/2013 --- 10.0.5848 SP3 CU14 11/18/2013 --- 10.0.5850 SP3 CU15 1/20/2014 --- 10.0.5852 SP3 CU16 3/17/2014 --- 10.0.5861 SP3 CU17 5/19/2014 --- 10.0.5867 SP3 CU17+ 10.0.6000 SP4 RTM 9/30/2014 --- 10.0.6526 SP4 + HF 2/9/2015 --- http://support.microsoft.com/kb/3034373 --- --- SQL Server 2008 RTM is considered an "unsupported service pack" as of April 13, 2010 --- SQL Server 2008 SP1 is considered an "unsupported service pack" as of September 19, 2011 --- SQL Server 2008 SP2 is considered an "unsupported service pack" as of September 17, 2012 --- Any build older than 10.0.5500 is on an "unsupported service pack" - --- SQL Server 2008 fell out of Mainstream Support on July 8, 2014 - --- The SQL Server 2008 builds that were released after SQL Server 2008 was released --- http://support.microsoft.com/kb/956909 --- --- The SQL Server 2008 builds that were released after SQL Server 2008 Service Pack 1 was released --- http://support.microsoft.com/kb/970365 --- --- The SQL Server 2008 builds that were released after SQL Server 2008 Service Pack 2 was released --- http://support.microsoft.com/kb/2402659 --- --- The SQL Server 2008 builds that were released after SQL Server 2008 Service Pack 3 was released --- http://support.microsoft.com/kb/2629969 - - - --- When was SQL Server installed (Query 2) (SQL Server Install Date) -SELECT @@SERVERNAME AS [Server Name], create_date AS [SQL Server Install Date] -FROM sys.server_principals WITH (NOLOCK) -WHERE name = N'NT AUTHORITY\SYSTEM' -OR name = N'NT AUTHORITY\NETWORK SERVICE' OPTION (RECOMPILE); - --- Tells you the date and time that SQL Server was installed --- It is a good idea to know how old your instance is - - --- Get selected server properties (SQL Server 2008) (Query 3) (Server Properties) -SELECT SERVERPROPERTY('MachineName') AS [MachineName], SERVERPROPERTY('ServerName') AS [ServerName], -SERVERPROPERTY('InstanceName') AS [Instance], SERVERPROPERTY('IsClustered') AS [IsClustered], -SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS [ComputerNamePhysicalNetBIOS], -SERVERPROPERTY('Edition') AS [Edition], SERVERPROPERTY('ProductLevel') AS [ProductLevel], -SERVERPROPERTY('ProductVersion') AS [ProductVersion], SERVERPROPERTY('ProcessID') AS [ProcessID], -SERVERPROPERTY('Collation') AS [Collation], SERVERPROPERTY('IsFullTextInstalled') AS [IsFullTextInstalled], -SERVERPROPERTY('IsIntegratedSecurityOnly') AS [IsIntegratedSecurityOnly]; - --- This gives you a lot of useful information about your instance of SQL Server, --- such as the ProcessID for SQL Server and your collation - - --- Get SQL Server Agent jobs and Category information (Query 4) (SQL Server Agent Jobs) -SELECT sj.name AS [JobName], sj.[description] AS [JobDescription], SUSER_SNAME(sj.owner_sid) AS [JobOwner], -sj.date_created, sj.[enabled], sj.notify_email_operator_id, sj.notify_level_email, sc.name AS [CategoryName], -js.next_run_date, js.next_run_time -FROM msdb.dbo.sysjobs AS sj WITH (NOLOCK) -INNER JOIN msdb.dbo.syscategories AS sc WITH (NOLOCK) -ON sj.category_id = sc.category_id -LEFT OUTER JOIN msdb.dbo.sysjobschedules AS js WITH (NOLOCK) -ON sj.job_id = js.job_id -ORDER BY sj.name OPTION (RECOMPILE); - --- Gives you some basic information about your SQL Server Agent jobs, who owns them and how they are configured --- Look for Agent jobs that are not owned by sa --- Look for jobs that have a notify_email_operator_id set to 0 (meaning no operator) --- Look for jobs that have a notify_level_email set to 0 (meaning no e-mail is ever sent) --- --- MSDN sysjobs documentation --- http://msdn.microsoft.com/en-us/library/ms189817.aspx - - --- Get SQL Server Agent Alert Information (Query 5) (SQL Server Agent Alerts) -SELECT name, event_source, message_id, severity, [enabled], has_notification, - delay_between_responses, occurrence_count, last_occurrence_date, last_occurrence_time -FROM msdb.dbo.sysalerts WITH (NOLOCK) -ORDER BY name OPTION (RECOMPILE); - --- Gives you some basic information about your SQL Server Agent Alerts (which are different from SQL Server Agent jobs) --- Read more about Agent Alerts here: http://www.sqlskills.com/blogs/glenn/creating-sql-server-agent-alerts-for-critical-errors/ - - --- Returns a list of all global trace flags that are enabled (Query 6) (Global Trace Flags) -DBCC TRACESTATUS (-1); - --- If no global trace flags are enabled, no results will be returned. --- It is very useful to know what global trace flags are currently enabled as part of the diagnostic process. - --- Common trace flags that should be enabled in most cases --- TF 3226 - Supresses logging of successful database backup messages to the SQL Server Error Log --- TF 1118 - Helps alleviate allocation contention in tempdb, SQL Server allocates full extents to each database object, --- thereby eliminating the contention on SGAM pages (more important with older versions of SQL Server) --- Recommendations to reduce allocation contention in SQL Server tempdb database --- http://support2.microsoft.com/kb/2154845 - - --- SQL Server NUMA Node information (Query 7) (SQL Server NUMA Info) -SELECT node_id, node_state_desc, memory_node_id, online_scheduler_count, - active_worker_count, avg_load_balance, resource_monitor_state -FROM sys.dm_os_nodes WITH (NOLOCK) -WHERE node_state_desc <> N'ONLINE DAC' OPTION (RECOMPILE); - --- Gives you some useful information about the composition --- and relative load on your NUMA nodes - - --- Hardware information from SQL Server 2008 (Query 8) (Hardware Info) --- (Cannot distinguish between HT and multi-core) -SELECT cpu_count AS [Logical CPU Count], hyperthread_ratio AS [Hyperthread Ratio], -cpu_count/hyperthread_ratio AS [Physical CPU Count], -physical_memory_in_bytes/1048576 AS [Physical Memory (MB)], sqlserver_start_time -FROM sys.dm_os_sys_info WITH (NOLOCK) OPTION (RECOMPILE); - --- Gives you some good basic hardware information about your database server - - --- Get System Manufacturer and model number from (Query 9) (System Manufacturer) --- SQL Server Error log. This query might take a few seconds --- if you have not recycled your error log recently -EXEC sys.xp_readerrorlog 0, 1, N'Manufacturer'; - --- This can help you determine the capabilities --- and capacities of your database server - - --- Get processor description from Windows Registry (Query 10) (Processor Description) -EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\CentralProcessor\0', N'ProcessorNameString'; - --- Gives you the model number and rated clock speed of your processor(s) --- Your processors may be running at less that the rated clock speed due --- to the Windows Power Plan or hardware power management - - --- Get the current node name from your cluster nodes (Query 11) (Cluster Node Properties) --- (if your database server is in a failover cluster) -SELECT NodeName -FROM sys.dm_os_cluster_nodes WITH (NOLOCK) OPTION (RECOMPILE); - --- Knowing which node owns the cluster resources is critical --- Especially when you are installing Windows or SQL Server updates --- You will see no results if your instance is not clustered - - --- Get configuration values for instance (Query 12) (Configuration Values) -SELECT name, value, value_in_use, minimum, maximum, [description], is_dynamic, is_advanced -FROM sys.configurations WITH (NOLOCK) -ORDER BY name OPTION (RECOMPILE); - --- Focus on these settings: --- backup compression default (should be 1 in most cases) --- clr enabled (only enable if it is needed) --- cost threshold for parallelism (depends on your workload) --- lightweight pooling (should be zero) --- max degree of parallelism (depends on your workload) --- max server memory (MB) (set to an appropriate value, not the default) --- optimize for ad hoc workloads (should be 1) --- priority boost (should be zero) --- remote admin connections (should be 1) - - - - - --- File Names and Paths for TempDB and all user databases in instance (Query 13) (Database Filenames and Paths) -SELECT DB_NAME([database_id]) AS [Database Name], - [file_id], name, physical_name, type_desc, state_desc, - is_percent_growth, growth, - CONVERT(bigint, growth/128.0) AS [Growth in MB], - CONVERT(bigint, size/128.0) AS [Total Size in MB] -FROM sys.master_files WITH (NOLOCK) -WHERE [database_id] > 4 -AND [database_id] <> 32767 -OR [database_id] = 2 -ORDER BY DB_NAME([database_id]) OPTION (RECOMPILE); - --- Things to look at: --- Are data files and log files on different drives? --- Is everything on the C: drive? --- Is TempDB on dedicated drives? --- Is there only one TempDB data file? --- Are all of the TempDB data files the same size? --- Are there multiple data files for user databases? --- Is percent growth enabled for any files (which is bad)? - - --- Look for I/O requests taking longer than 15 seconds in the five most recent SQL Server Error Logs (Query 14) (IO Warnings) -CREATE TABLE #IOWarningResults(LogDate datetime, ProcessInfo sysname, LogText nvarchar(1000)); - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 0, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 1, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 2, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 3, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 4, 1, N'taking longer than 15 seconds'; - -SELECT LogDate, ProcessInfo, LogText -FROM #IOWarningResults -ORDER BY LogDate DESC; - -DROP TABLE #IOWarningResults; - --- Finding 15 second I/O warnings in the SQL Server Error Log is useful evidence of --- poor I/O performance (which might have many different causes) - - --- Drive level latency information (Query 15) (Drive Level Latency) --- Based on code from Jimmy May -SELECT tab.[Drive], tab.volume_mount_point AS [Volume Mount Point], - CASE - WHEN num_of_reads = 0 THEN 0 - ELSE (io_stall_read_ms/num_of_reads) - END AS [Read Latency], - CASE - WHEN num_of_writes = 0 THEN 0 - ELSE (io_stall_write_ms/num_of_writes) - END AS [Write Latency], - CASE - WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 - ELSE (io_stall/(num_of_reads + num_of_writes)) - END AS [Overall Latency], - CASE - WHEN num_of_reads = 0 THEN 0 - ELSE (num_of_bytes_read/num_of_reads) - END AS [Avg Bytes/Read], - CASE - WHEN num_of_writes = 0 THEN 0 - ELSE (num_of_bytes_written/num_of_writes) - END AS [Avg Bytes/Write], - CASE - WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 - ELSE ((num_of_bytes_read + num_of_bytes_written)/(num_of_reads + num_of_writes)) - END AS [Avg Bytes/Transfer] -FROM (SELECT LEFT(UPPER(mf.physical_name), 2) AS Drive, SUM(num_of_reads) AS num_of_reads, - SUM(io_stall_read_ms) AS io_stall_read_ms, SUM(num_of_writes) AS num_of_writes, - SUM(io_stall_write_ms) AS io_stall_write_ms, SUM(num_of_bytes_read) AS num_of_bytes_read, - SUM(num_of_bytes_written) AS num_of_bytes_written, SUM(io_stall) AS io_stall, vs.volume_mount_point - FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS vfs - INNER JOIN sys.master_files AS mf WITH (NOLOCK) - ON vfs.database_id = mf.database_id AND vfs.file_id = mf.file_id - CROSS APPLY sys.dm_os_volume_stats(mf.database_id, mf.[file_id]) AS vs - GROUP BY LEFT(UPPER(mf.physical_name), 2), vs.volume_mount_point) AS tab -ORDER BY [Overall Latency] OPTION (RECOMPILE); - --- Shows you the drive-level latency for reads and writes, in milliseconds --- Latency above 20-25ms is usually a problem - - --- Calculates average stalls per read, per write, and per total input/output for each database file (Query 16) (IO Stalls by File) -SELECT DB_NAME(fs.database_id) AS [Database Name], CAST(fs.io_stall_read_ms/(1.0 + fs.num_of_reads) AS NUMERIC(10,1)) AS [avg_read_stall_ms], -CAST(fs.io_stall_write_ms/(1.0 + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_write_stall_ms], -CAST((fs.io_stall_read_ms + fs.io_stall_write_ms)/(1.0 + fs.num_of_reads + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_io_stall_ms], -CONVERT(DECIMAL(18,2), mf.size/128.0) AS [File Size (MB)], mf.physical_name, mf.type_desc, fs.io_stall_read_ms, fs.num_of_reads, -fs.io_stall_write_ms, fs.num_of_writes, fs.io_stall_read_ms + fs.io_stall_write_ms AS [io_stalls], fs.num_of_reads + fs.num_of_writes AS [total_io] -FROM sys.dm_io_virtual_file_stats(null,null) AS fs -INNER JOIN sys.master_files AS mf WITH (NOLOCK) -ON fs.database_id = mf.database_id -AND fs.[file_id] = mf.[file_id] -ORDER BY avg_io_stall_ms DESC OPTION (RECOMPILE); - --- Helps determine which database files on the entire instance have the most I/O bottlenecks --- This can help you decide whether certain LUNs are overloaded and whether you might --- want to move some files to a different location or perhaps improve your I/O performance - - --- Recovery model, log reuse wait description, log file size, log usage size (Query 17) (Database Properties) --- and compatibility level for all databases on instance -SELECT db.[name] AS [Database Name], db.recovery_model_desc AS [Recovery Model], -db.log_reuse_wait_desc AS [Log Reuse Wait Description], -ls.cntr_value AS [Log Size (KB)], lu.cntr_value AS [Log Used (KB)], -CAST(CAST(lu.cntr_value AS FLOAT) / CAST(ls.cntr_value AS FLOAT)AS DECIMAL(18,2)) * 100 AS [Log Used %], -db.[compatibility_level] AS [DB Compatibility Level], -db.page_verify_option_desc AS [Page Verify Option], db.is_auto_create_stats_on, db.is_auto_update_stats_on, -db.is_auto_update_stats_async_on, db.is_parameterization_forced, -db.snapshot_isolation_state_desc, db.is_read_committed_snapshot_on, -db.is_auto_close_on, db.is_auto_shrink_on, db.is_cdc_enabled -FROM sys.databases AS db WITH (NOLOCK) -INNER JOIN sys.dm_os_performance_counters AS lu WITH (NOLOCK) -ON db.name = lu.instance_name -INNER JOIN sys.dm_os_performance_counters AS ls WITH (NOLOCK) -ON db.name = ls.instance_name -WHERE lu.counter_name LIKE N'Log File(s) Used Size (KB)%' -AND ls.counter_name LIKE N'Log File(s) Size (KB)%' -AND ls.cntr_value > 0 OPTION (RECOMPILE); - --- Things to look at: --- How many databases are on the instance? --- What recovery models are they using? --- What is the log reuse wait description? --- How full are the transaction logs ? --- What compatibility level are the databases on? --- What is the Page Verify Option? (should be CHECKSUM) --- Is Auto Update Statistics Asynchronously enabled? --- Make sure auto_shrink and auto_close are not enabled! - - - --- Missing Indexes for all databases by Index Advantage (Query 18) (Missing Indexes All Databases) -SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], -migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], -mid.equality_columns, mid.inequality_columns, mid.included_columns, -migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact -FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) -INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) -ON migs.group_handle = mig.index_group_handle -INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) -ON mig.index_handle = mid.index_handle -ORDER BY index_advantage DESC OPTION (RECOMPILE); - --- Getting missing index information for all of the databases on the instance is very useful --- Look at last user seek time, number of user seeks to help determine source and importance --- Also look at avg_user_impact and avg_total_user_cost to help determine importance --- SQL Server is overly eager to add included columns, so beware --- Do not just blindly add indexes that show up from this query!!! - - - --- Get VLF Counts for all databases on the instance (Query 19) (VLF Counts) --- (adapted from Michelle Ufford) -CREATE TABLE #VLFInfo (FileID int, - FileSize bigint, StartOffset bigint, - FSeqNo bigint, [Status] bigint, - Parity bigint, CreateLSN numeric(38)); - -CREATE TABLE #VLFCountResults(DatabaseName sysname, VLFCount int); - -EXEC sp_MSforeachdb N'Use [?]; - - INSERT INTO #VLFInfo - EXEC sp_executesql N''DBCC LOGINFO([?])''; - - INSERT INTO #VLFCountResults - SELECT DB_NAME(), COUNT(*) - FROM #VLFInfo; - - TRUNCATE TABLE #VLFInfo;' - -SELECT DatabaseName, VLFCount -FROM #VLFCountResults -ORDER BY VLFCount DESC; - -DROP TABLE #VLFInfo; -DROP TABLE #VLFCountResults; - --- High VLF counts can affect write performance --- and they can make database restores and recovery take much longer --- Try to keep your VLF counts under 200 in most cases - - - --- Get CPU utilization by database (Query 20) (CPU Usage by Database) -WITH DB_CPU_Stats -AS -(SELECT pa.DatabaseID, DB_Name(pa.DatabaseID) AS [Database Name], SUM(qs.total_worker_time/1000) AS [CPU_Time_Ms] - FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) - CROSS APPLY (SELECT CONVERT(int, value) AS [DatabaseID] - FROM sys.dm_exec_plan_attributes(qs.plan_handle) - WHERE attribute = N'dbid') AS pa - GROUP BY DatabaseID) -SELECT ROW_NUMBER() OVER(ORDER BY [CPU_Time_Ms] DESC) AS [CPU Rank], - [Database Name], [CPU_Time_Ms] AS [CPU Time (ms)], - CAST([CPU_Time_Ms] * 1.0 / SUM([CPU_Time_Ms]) OVER() * 100.0 AS DECIMAL(5, 2)) AS [CPU Percent] -FROM DB_CPU_Stats -WHERE DatabaseID <> 32767 -- ResourceDB -ORDER BY [CPU Rank] OPTION (RECOMPILE); - --- Helps determine which database is using the most CPU resources on the instance - - --- Get I/O utilization by database (Query 21) (IO Usage By Database) -WITH Aggregate_IO_Statistics -AS -(SELECT DB_NAME(database_id) AS [Database Name], -CAST(SUM(num_of_bytes_read + num_of_bytes_written)/1048576 AS DECIMAL(12, 2)) AS io_in_mb -FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS [DM_IO_STATS] -GROUP BY database_id) -SELECT ROW_NUMBER() OVER(ORDER BY io_in_mb DESC) AS [I/O Rank], [Database Name], io_in_mb AS [Total I/O (MB)], - CAST(io_in_mb/ SUM(io_in_mb) OVER() * 100.0 AS DECIMAL(5,2)) AS [I/O Percent] -FROM Aggregate_IO_Statistics -ORDER BY [I/O Rank] OPTION (RECOMPILE); - --- Helps determine which database is using the most I/O resources on the instance - - --- Get total buffer usage by database for current instance (Query 22) (Total Buffer Usage by Database) --- This make take some time to run on a busy instance -WITH AggregateBufferPoolUsage -AS -(SELECT DB_NAME(database_id) AS [Database Name], -CAST(COUNT(*) * 8/1024.0 AS DECIMAL (10,2)) AS [CachedSize] -FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) -WHERE database_id <> 32767 -- ResourceDB -GROUP BY DB_NAME(database_id)) -SELECT ROW_NUMBER() OVER(ORDER BY CachedSize DESC) AS [Buffer Pool Rank], [Database Name], CachedSize AS [Cached Size (MB)], - CAST(CachedSize / SUM(CachedSize) OVER() * 100.0 AS DECIMAL(5,2)) AS [Buffer Pool Percent] -FROM AggregateBufferPoolUsage -ORDER BY [Buffer Pool Rank] OPTION (RECOMPILE); - --- Tells you how much memory (in the buffer pool) --- is being used by each database on the instance - - --- Clear Wait Stats with this command --- DBCC SQLPERF('sys.dm_os_wait_stats', CLEAR); - --- Isolate top waits for server instance since last restart or statistics clear (Query 23) (Top Waits) -WITH [Waits] -AS (SELECT wait_type, wait_time_ms/ 1000.0 AS [WaitS], - (wait_time_ms - signal_wait_time_ms) / 1000.0 AS [ResourceS], - signal_wait_time_ms / 1000.0 AS [SignalS], - waiting_tasks_count AS [WaitCount], - 100.0 * wait_time_ms / SUM (wait_time_ms) OVER() AS [Percentage], - ROW_NUMBER() OVER(ORDER BY wait_time_ms DESC) AS [RowNum] - FROM sys.dm_os_wait_stats WITH (NOLOCK) - WHERE [wait_type] NOT IN ( - N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', - N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', - N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', - N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', - N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', - N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', - N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', - N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', - N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', - N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', - N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', - N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', - N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', - N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', - N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', - N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', - N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', - N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', - N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') - AND waiting_tasks_count > 0) -SELECT - MAX (W1.wait_type) AS [WaitType], - CAST (MAX (W1.WaitS) AS DECIMAL (16,2)) AS [Wait_Sec], - CAST (MAX (W1.ResourceS) AS DECIMAL (16,2)) AS [Resource_Sec], - CAST (MAX (W1.SignalS) AS DECIMAL (16,2)) AS [Signal_Sec], - MAX (W1.WaitCount) AS [Wait Count], - CAST (MAX (W1.Percentage) AS DECIMAL (5,2)) AS [Wait Percentage], - CAST ((MAX (W1.WaitS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgWait_Sec], - CAST ((MAX (W1.ResourceS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgRes_Sec], - CAST ((MAX (W1.SignalS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgSig_Sec] -FROM Waits AS W1 -INNER JOIN Waits AS W2 -ON W2.RowNum <= W1.RowNum -GROUP BY W1.RowNum -HAVING SUM (W2.Percentage) - MAX (W1.Percentage) < 99 -- percentage threshold -OPTION (RECOMPILE); - --- The SQL Server Wait Type Repository --- http://blogs.msdn.com/b/psssql/archive/2009/11/03/the-sql-server-wait-type-repository.aspx - --- Wait statistics, or please tell me where it hurts --- http://www.sqlskills.com/blogs/paul/wait-statistics-or-please-tell-me-where-it-hurts/ - --- SQL Server 2005 Performance Tuning using the Waits and Queues --- http://technet.microsoft.com/en-us/library/cc966413.aspx - --- sys.dm_os_wait_stats (Transact-SQL) --- http://msdn.microsoft.com/en-us/library/ms179984(v=sql.100).aspx - - - - --- Signal Waits for instance (Query 24) (Signal Waits) -SELECT CAST(100.0 * SUM(signal_wait_time_ms) / SUM (wait_time_ms) AS NUMERIC(20,2)) AS [% Signal (CPU) Waits], -CAST(100.0 * SUM(wait_time_ms - signal_wait_time_ms) / SUM (wait_time_ms) AS NUMERIC(20,2)) AS [% Resource Waits] -FROM sys.dm_os_wait_stats WITH (NOLOCK) -WHERE wait_type NOT IN ( - N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', - N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', - N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', - N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', - N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', - N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', - N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', - N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', - N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', - N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', - N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', - N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', - N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', - N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', - N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', - N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', - N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', - N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', - N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') OPTION (RECOMPILE); - --- Signal Waits above 10-15% is usually a confirming sign of CPU pressure --- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure --- Resource waits are non-CPU related waits - - --- Get logins that are connected and how many sessions they have (Query 25) (Connection Counts) -SELECT login_name, [program_name], COUNT(session_id) AS [session_count] -FROM sys.dm_exec_sessions WITH (NOLOCK) -GROUP BY login_name, [program_name] -ORDER BY COUNT(session_id) DESC OPTION (RECOMPILE); - --- This can help characterize your workload and --- determine whether you are seeing a normal level of activity - - --- Get a count of SQL connections by IP address (Query 26) (Connection Counts by IP Address) -SELECT ec.client_net_address, es.[program_name], es.[host_name], es.login_name, -COUNT(ec.session_id) AS [connection count] -FROM sys.dm_exec_sessions AS es WITH (NOLOCK) -INNER JOIN sys.dm_exec_connections AS ec WITH (NOLOCK) -ON es.session_id = ec.session_id -GROUP BY ec.client_net_address, es.[program_name], es.[host_name], es.login_name -ORDER BY ec.client_net_address, es.[program_name] OPTION (RECOMPILE); - --- This helps you figure where your database load is coming from --- and verifies connectivity from other machines - - --- Get Average Task Counts (run multiple times) (Query 27) (Avg Task Counts) -SELECT AVG(current_tasks_count) AS [Avg Task Count], -AVG(runnable_tasks_count) AS [Avg Runnable Task Count], -AVG(pending_disk_io_count) AS [Avg Pending DiskIO Count] -FROM sys.dm_os_schedulers WITH (NOLOCK) -WHERE scheduler_id < 255 OPTION (RECOMPILE); - --- Sustained values above 10 suggest further investigation in that area --- High Avg Task Counts are often caused by blocking/deadlocking or other resource contention - --- Sustained values above 1 suggest further investigation in that area --- High Avg Runnable Task Counts are a good sign of CPU pressure --- High Avg Pending DiskIO Counts are a sign of disk pressure - - --- Get CPU Utilization History for last 256 minutes (in one minute intervals) (Query 28) (CPU Utilization History) --- This version works with SQL Server 2008 -DECLARE @ts_now bigint = (SELECT cpu_ticks/(cpu_ticks/ms_ticks) FROM sys.dm_os_sys_info WITH (NOLOCK)); - -SELECT TOP(256) SQLProcessUtilization AS [SQL Server Process CPU Utilization], - SystemIdle AS [System Idle Process], - 100 - SystemIdle - SQLProcessUtilization AS [Other Process CPU Utilization], - DATEADD(ms, -1 * (@ts_now - [timestamp]), GETDATE()) AS [Event Time] -FROM ( - SELECT record.value('(./Record/@id)[1]', 'int') AS record_id, - record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') - AS [SystemIdle], - record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', - 'int') - AS [SQLProcessUtilization], [timestamp] - FROM ( - SELECT [timestamp], CONVERT(xml, record) AS [record] - FROM sys.dm_os_ring_buffers WITH (NOLOCK) - WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' - AND record LIKE N'%%') AS x - ) AS y -ORDER BY record_id DESC OPTION (RECOMPILE); - --- Look at the trend over the entire period. --- Also look at high sustained Other Process CPU Utilization values - - --- Get top total worker time queries for entire instance (Query 29) (Top Worker Time Queries) -SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], t.[text] AS [Query Text], -qs.total_worker_time AS [Total Worker Time], qs.min_worker_time AS [Min Worker Time], -qs.total_worker_time/qs.execution_count AS [Avg Worker Time], -qs.max_worker_time AS [Max Worker Time], qs.execution_count AS [Execution Count], -qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], -qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], -qs.total_physical_reads/qs.execution_count AS [Avg Physical Reads], qs.creation_time AS [Creation Time] -, qp.query_plan AS [Query Plan] -- comment out this column if copying results to Excel -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t -CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp -ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); - - --- Helps you find the most expensive queries from a CPU perspective across the entire instance - - - --- Good basic information about OS memory amounts and state (Query 30) (System Memory) -SELECT total_physical_memory_kb/1024 AS [Physical Memory (MB)], - available_physical_memory_kb/1024 AS [Available Memory (MB)], - total_page_file_kb/1024 AS [Total Page File (MB)], - available_page_file_kb/1024 AS [Available Page File (MB)], - system_cache_kb/1024 AS [System Cache (MB)], - system_memory_state_desc AS [System Memory State] -FROM sys.dm_os_sys_memory WITH (NOLOCK) OPTION (RECOMPILE); - --- You want to see "Available physical memory is high" --- This indicates that you are not under external memory pressure - - --- SQL Server Process Address space info (Query 31) (Process Memory) --- (shows whether locked pages is enabled, among other things) -SELECT physical_memory_in_use_kb/1024 AS [SQL Server Memory Usage (MB)], - large_page_allocations_kb, locked_page_allocations_kb, page_fault_count, - memory_utilization_percentage, available_commit_limit_kb, - process_physical_memory_low, process_virtual_memory_low -FROM sys.dm_os_process_memory WITH (NOLOCK) OPTION (RECOMPILE); - --- You want to see 0 for process_physical_memory_low --- You want to see 0 for process_virtual_memory_low --- This indicates that you are not under internal memory pressure - - --- Page Life Expectancy (PLE) value for each NUMA node in current instance (Query 32) (PLE by NUMA Node) -SELECT @@SERVERNAME AS [Server Name], [object_name], instance_name, cntr_value AS [Page Life Expectancy] -FROM sys.dm_os_performance_counters WITH (NOLOCK) -WHERE [object_name] LIKE N'%Buffer Node%' -- Handles named instances -AND counter_name = N'Page life expectancy' OPTION (RECOMPILE); - --- PLE is a good measurement of memory pressure. --- Higher PLE is better. Watch the trend over time, not the absolute value. --- This will only return one row for non-NUMA systems. - - --- Memory Grants Pending value for current instance (Query 33) (Memory Grants Pending) -SELECT @@SERVERNAME AS [Server Name], [object_name], cntr_value AS [Memory Grants Pending] -FROM sys.dm_os_performance_counters WITH (NOLOCK) -WHERE [object_name] LIKE N'%Memory Manager%' -- Handles named instances -AND counter_name = N'Memory Grants Pending' OPTION (RECOMPILE); - --- Memory Grants Pending above zero for a sustained period is a very strong indicator of memory pressure - - --- Memory Clerk Usage for instance (Query 34) (Memory Clerk Usage) --- Look for high value for CACHESTORE_SQLCP (Ad-hoc query plans) -SELECT TOP(10) [type] AS [Memory Clerk Type], SUM(single_pages_kb)/1024 AS [SPA Memory Usage (MB)] -FROM sys.dm_os_memory_clerks WITH (NOLOCK) -GROUP BY [type] -ORDER BY SUM(single_pages_kb) DESC OPTION (RECOMPILE); - --- CACHESTORE_SQLCP SQL Plans --- These are cached SQL statements or batches that aren't in stored procedures, functions and triggers --- Watch out for high values for CACHESTORE_SQLCP - --- CACHESTORE_OBJCP Object Plans --- These are compiled plans for stored procedures, functions and triggers - - - --- Find single-use, ad-hoc and prepared queries that are bloating the plan cache (Query 35) (Ad hoc Queries) -SELECT TOP(50) [text] AS [QueryText], cp.cacheobjtype, cp.objtype, cp.size_in_bytes/1024 AS [Plan Size in KB] -FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) -WHERE cp.cacheobjtype = N'Compiled Plan' -AND cp.objtype IN (N'Adhoc', N'Prepared') -AND cp.usecounts = 1 -ORDER BY cp.size_in_bytes DESC OPTION (RECOMPILE); - --- Gives you the text, type and size of single-use ad-hoc and prepared queries that waste space in the plan cache --- Enabling 'optimize for ad hoc workloads' for the instance can help (SQL Server 2008 and above only) --- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this. --- Enabling forced parameterization for the database can help, but test first! - - --- Database specific queries ***************************************************************** - --- **** Switch to a user database ***** -USE YourDatabaseName; -GO - --- Individual File Sizes and space available for current database (Query 36) (File Sizes and Space) -SELECT f.name AS [File Name] , f.physical_name AS [Physical Name], -CAST((f.size/128.0) AS DECIMAL(15,2)) AS [Total Size in MB], -CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) -AS [Available Space In MB], [file_id], fg.name AS [Filegroup Name] -FROM sys.database_files AS f WITH (NOLOCK) -LEFT OUTER JOIN sys.data_spaces AS fg WITH (NOLOCK) -ON f.data_space_id = fg.data_space_id OPTION (RECOMPILE); - --- Look at how large and how full the files are and where they are located --- Make sure the transaction log is not full!! - - - --- I/O Statistics by file for the current database (Query 37) (IO Stats By File) -SELECT DB_NAME(DB_ID()) AS [Database Name], df.name AS [Logical Name], vfs.[file_id], -df.physical_name AS [Physical Name], vfs.num_of_reads, vfs.num_of_writes, vfs.io_stall_read_ms, vfs.io_stall_write_ms, -CAST(100. * vfs.io_stall_read_ms/(vfs.io_stall_read_ms + vfs.io_stall_write_ms) AS DECIMAL(10,1)) AS [IO Stall Reads Pct], -CAST(100. * vfs.io_stall_write_ms/(vfs.io_stall_write_ms + vfs.io_stall_read_ms) AS DECIMAL(10,1)) AS [IO Stall Writes Pct], -(vfs.num_of_reads + vfs.num_of_writes) AS [Writes + Reads], -CAST(vfs.num_of_bytes_read/1048576.0 AS DECIMAL(10, 2)) AS [MB Read], -CAST(vfs.num_of_bytes_written/1048576.0 AS DECIMAL(10, 2)) AS [MB Written], -CAST(100. * vfs.num_of_reads/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Reads Pct], -CAST(100. * vfs.num_of_writes/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Write Pct], -CAST(100. * vfs.num_of_bytes_read/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Read Bytes Pct], -CAST(100. * vfs.num_of_bytes_written/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Written Bytes Pct] -FROM sys.dm_io_virtual_file_stats(DB_ID(), NULL) AS vfs -INNER JOIN sys.database_files AS df WITH (NOLOCK) -ON vfs.[file_id]= df.[file_id] OPTION (RECOMPILE); - --- This helps you characterize your workload better from an I/O perspective for this database --- It helps you determine whether you has an OLTP or DW/DSS type of workload - - - --- Top cached queries by Execution Count (SQL Server 2008) (Query 38) (Query Execution Counts) -SELECT TOP (100) qs.execution_count, qs.total_worker_time, qs.total_logical_reads, qs.total_elapsed_time, -SUBSTRING(qt.TEXT,qs.statement_start_offset/2 +1, -(CASE WHEN qs.statement_end_offset = -1 - THEN LEN(CONVERT(NVARCHAR(MAX), qt.TEXT)) * 2 - ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) AS query_text -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt -ORDER BY qs.execution_count DESC OPTION (RECOMPILE); - - --- Look at non-stored procedure queries - - --- Top Cached SPs By Execution Count (SQL 2008) (Query 39) (SP Execution Counts) -SELECT TOP(100) p.name AS [SP Name], qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.total_worker_time AS [TotalWorkerTime], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY qs.execution_count DESC OPTION (RECOMPILE); - --- Tells you which cached stored procedures are called the most often --- This helps you characterize and baseline your workload - - --- Top Cached SPs By Avg Elapsed Time (SQL 2008) (Query 40) (SP Avg Elapsed Time) -SELECT TOP(25) p.name AS [SP Name], qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.total_elapsed_time, qs.execution_count, ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, -GETDATE()), 0) AS [Calls/Minute], qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], -qs.total_worker_time AS [TotalWorkerTime], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); - --- This helps you find long-running cached stored procedures that --- may be easy to optimize with standard query tuning techniques - - --- Top Cached SPs By Avg Elapsed Time with execution time variability (Query 41) (SP Avg Elapsed Variable Time) -SELECT TOP(25) p.name AS [SP Name], qs.execution_count, qs.min_elapsed_time, -qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.max_elapsed_time, qs.last_elapsed_time, qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); - --- This gives you some interesting information about the variability in the --- execution time of your cached stored procedures, which is useful for tuning - - --- Top Cached SPs By Total Worker time (SQL 2008). Worker time relates to CPU cost (Query 42) (SP Worker Time) -SELECT TOP(25) p.name AS [SP Name], qs.total_worker_time AS [TotalWorkerTime], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count -AS [avg_elapsed_time], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a CPU perspective --- You should look at this if you see signs of CPU pressure - - --- Top Cached SPs By Total Logical Reads (SQL 2008). Logical reads relate to memory pressure (Query 43) (SP Logical Reads) -SELECT TOP(25) p.name AS [SP Name], qs.total_logical_reads AS [TotalLogicalReads], -qs.total_logical_reads/qs.execution_count AS [AvgLogicalReads],qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count -AS [avg_elapsed_time], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a memory perspective --- You should look at this if you see signs of memory pressure - - --- Top Cached SPs By Total Physical Reads (SQL 2008). Physical reads relate to disk I/O pressure (Query 44) (SP Physical Reads) -SELECT TOP(25) p.name AS [SP Name],qs.total_physical_reads AS [TotalPhysicalReads], -qs.total_physical_reads/qs.execution_count AS [AvgPhysicalReads], qs.execution_count, -qs.total_logical_reads,qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count -AS [avg_elapsed_time], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -AND qs.total_physical_reads > 0 -ORDER BY qs.total_physical_reads DESC, qs.total_logical_reads DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a read I/O perspective --- You should look at this if you see signs of I/O pressure or of memory pressure - --- Top Cached SPs By Total Logical Writes (SQL 2008) (Query 45) (SP Logical Writes) --- Logical writes relate to both memory and disk I/O pressure -SELECT TOP(25) p.name AS [SP Name], qs.total_logical_writes AS [TotalLogicalWrites], -qs.total_logical_writes/qs.execution_count AS [AvgLogicalWrites], qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -AND qs.total_logical_writes > 0 -ORDER BY qs.total_logical_writes DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a write I/O perspective --- You should look at this if you see signs of I/O pressure or of memory pressure - - --- Lists the top statements by average input/output usage for the current database (Query 46) (Top IO Statements) -SELECT TOP(50) OBJECT_NAME(qt.objectid, dbid) AS [SP Name], -(qs.total_logical_reads + qs.total_logical_writes) /qs.execution_count AS [Avg IO], qs.execution_count AS [Execution Count], -SUBSTRING(qt.[text],qs.statement_start_offset/2, - (CASE - WHEN qs.statement_end_offset = -1 - THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 - ELSE qs.statement_end_offset - END - qs.statement_start_offset)/2) AS [Query Text] -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt -WHERE qt.[dbid] = DB_ID() -ORDER BY [Avg IO] DESC OPTION (RECOMPILE); - --- Helps you find the most expensive statements for I/O by SP - - - --- Possible Bad NC Indexes (writes > reads) (Query 47) (Bad NC Indexes) -SELECT OBJECT_NAME(s.[object_id]) AS [Table Name], i.name AS [Index Name], i.index_id, -i.is_disabled, i.is_hypothetical, i.has_filter, i.fill_factor, -user_updates AS [Total Writes], user_seeks + user_scans + user_lookups AS [Total Reads], -user_updates - (user_seeks + user_scans + user_lookups) AS [Difference] -FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON s.[object_id] = i.[object_id] -AND i.index_id = s.index_id -WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 -AND s.database_id = DB_ID() -AND user_updates > (user_seeks + user_scans + user_lookups) -AND i.index_id > 1 -ORDER BY [Difference] DESC, [Total Writes] DESC, [Total Reads] ASC OPTION (RECOMPILE); - --- Look for indexes with high numbers of writes and zero or very low numbers of reads --- Consider your complete workload, and how long your instance has been running --- Investigate further before dropping an index! - - --- Missing Indexes for current database by Index Advantage (Query 48) (Missing Indexes) -SELECT DISTINCT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], -migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], -mid.equality_columns, mid.inequality_columns, mid.included_columns, -migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact, -OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows] -FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) -INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) -ON migs.group_handle = mig.index_group_handle -INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) -ON mig.index_handle = mid.index_handle -INNER JOIN sys.partitions AS p WITH (NOLOCK) -ON p.[object_id] = mid.[object_id] -WHERE mid.database_id = DB_ID() -ORDER BY index_advantage DESC OPTION (RECOMPILE); - --- Look at index advantage, last user seek time, number of user seeks to help determine source and importance --- SQL Server is overly eager to add included columns, so beware --- Do not just blindly add indexes that show up from this query!!! - - --- Find missing index warnings for cached plans in the current database (Query 49) (Missing Index Warnings) --- Note: This query could take some time on a busy instance -SELECT TOP(25) OBJECT_NAME(objectid) AS [ObjectName], - query_plan, cp.objtype, cp.usecounts -FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) -CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp -WHERE CAST(query_plan AS NVARCHAR(MAX)) LIKE N'%MissingIndex%' -AND dbid = DB_ID() -ORDER BY cp.usecounts DESC OPTION (RECOMPILE); - --- Helps you connect missing indexes to specific stored procedures --- This can help you decide whether to add them or not - - --- Breaks down buffers used by current database by object (table, index) in the buffer cache (Query 50) (Buffer Usage) --- Note: This query could take some time on a busy instance -SELECT OBJECT_NAME(p.[object_id]) AS [Object Name], p.index_id, -CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], -COUNT(*) AS [BufferCount], p.Rows AS [Row Count], -p.data_compression_desc AS [Compression Type] -FROM sys.allocation_units AS a WITH (NOLOCK) -INNER JOIN sys.dm_os_buffer_descriptors AS b WITH (NOLOCK) -ON a.allocation_unit_id = b.allocation_unit_id -INNER JOIN sys.partitions AS p WITH (NOLOCK) -ON a.container_id = p.hobt_id -WHERE b.database_id = CONVERT(int,DB_ID()) -AND p.[object_id] > 100 -GROUP BY p.[object_id], p.index_id, p.data_compression_desc, p.[Rows] -ORDER BY [BufferCount] DESC OPTION (RECOMPILE); - --- Tells you what tables and indexes are using the most memory in the buffer cache --- It can help identify possible candidates for data compression - - --- Get Table names, row counts, and compression status for clustered index or heap (Query 51) (Table Sizes) -SELECT OBJECT_NAME(object_id) AS [ObjectName], -SUM(Rows) AS [RowCount], data_compression_desc AS [CompressionType] -FROM sys.partitions WITH (NOLOCK) -WHERE index_id < 2 --ignore the partitions from the non-clustered index if any -AND OBJECT_NAME(object_id) NOT LIKE N'sys%' -AND OBJECT_NAME(object_id) NOT LIKE N'queue_%' -AND OBJECT_NAME(object_id) NOT LIKE N'filestream_tombstone%' -AND OBJECT_NAME(object_id) NOT LIKE N'fulltext%' -AND OBJECT_NAME(object_id) NOT LIKE N'ifts_comp_fragment%' -AND OBJECT_NAME(object_id) NOT LIKE N'xml_index_nodes%' -GROUP BY object_id, data_compression_desc -ORDER BY SUM(Rows) DESC OPTION (RECOMPILE); - --- Gives you an idea of table sizes, and possible data compression opportunities - - --- Get some key table properties (Query 52) (Table Properties) -SELECT [name], create_date, lock_on_bulk_load, is_replicated, has_replication_filter, - is_tracked_by_cdc, lock_escalation_desc -FROM sys.tables WITH (NOLOCK) -ORDER BY [name] OPTION (RECOMPILE); - --- Gives you some good information about your tables - - --- Detect blocking (run multiple times) (Query 53) (Detect Blocking) -SELECT t1.resource_type AS [lock type], DB_NAME(resource_database_id) AS [database], -t1.resource_associated_entity_id AS [blk object],t1.request_mode AS [lock req], --- lock requested -t1.request_session_id AS [waiter sid], t2.wait_duration_ms AS [wait time], -- spid of waiter -(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK) -- get sql for waiter -CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) -WHERE r.session_id = t1.request_session_id) AS [waiter_batch], -(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, - (CASE WHEN r.statement_end_offset = -1 - THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 - ELSE r.statement_end_offset END - r.statement_start_offset)/2) -FROM sys.dm_exec_requests AS r WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt -WHERE r.session_id = t1.request_session_id) AS [waiter_stmt], -- statement blocked -t2.blocking_session_id AS [blocker sid], -- spid of blocker -(SELECT [text] FROM sys.sysprocesses AS p -- get sql for blocker -CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) -WHERE p.spid = t2.blocking_session_id) AS [blocker_stmt] -FROM sys.dm_tran_locks AS t1 WITH (NOLOCK) -INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK) -ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE); - --- Helps troubleshoot blocking and deadlocking issues --- The results will change from second to second on a busy system --- You should run this query multiple times when you see signs of blocking - - - --- When were Statistics last updated on all indexes? (Query 54) (Statistics Update) -SELECT SCHEMA_NAME(o.Schema_ID) + N'.' + o.NAME AS [Object Name], o.type_desc AS [Object Type], - i.name AS [Index Name], STATS_DATE(i.[object_id], i.index_id) AS [Statistics Date], - s.auto_created, s.no_recompute, s.user_created, st.row_count, st.used_page_count -FROM sys.objects AS o WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON o.[object_id] = i.[object_id] -INNER JOIN sys.stats AS s WITH (NOLOCK) -ON i.[object_id] = s.[object_id] -AND i.index_id = s.stats_id -INNER JOIN sys.dm_db_partition_stats AS st WITH (NOLOCK) -ON o.[object_id] = st.[object_id] -AND i.[index_id] = st.[index_id] -WHERE o.[type] IN ('U', 'V') -AND st.row_count > 0 -ORDER BY STATS_DATE(i.[object_id], i.index_id) DESC OPTION (RECOMPILE); - --- Helps discover possible problems with out-of-date statistics --- Also gives you an idea which indexes are the most active - - --- Get fragmentation info for all indexes above a certain size in the current database (Query 55) (Index Fragmentation) --- Note: This query could take some time on a very large database -SELECT DB_NAME(ps.database_id) AS [Database Name], OBJECT_NAME(ps.OBJECT_ID) AS [Object Name], -i.name AS [Index Name], ps.index_id, ps.index_type_desc, ps.avg_fragmentation_in_percent, -ps.fragment_count, ps.page_count, i.fill_factor, i.has_filter, i.filter_definition -FROM sys.dm_db_index_physical_stats(DB_ID(),NULL, NULL, NULL , N'LIMITED') AS ps -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON ps.[object_id] = i.[object_id] -AND ps.index_id = i.index_id -WHERE ps.database_id = DB_ID() -AND ps.page_count > 2500 -ORDER BY ps.avg_fragmentation_in_percent DESC OPTION (RECOMPILE); - --- Helps determine whether you have framentation in your relational indexes --- and how effective your index maintenance strategy is - - ---- Index Read/Write stats (all tables in current DB) ordered by Reads (Query 56) (Overall Index Usage - Reads) -SELECT OBJECT_NAME(s.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, - user_seeks + user_scans + user_lookups AS [Reads], s.user_updates AS [Writes], - i.type_desc AS [IndexType], i.fill_factor AS [FillFactor], i.has_filter, i.filter_definition, - s.last_user_scan, s.last_user_lookup, s.last_user_seek -FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON s.[object_id] = i.[object_id] -WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 -AND i.index_id = s.index_id -AND s.database_id = DB_ID() -ORDER BY user_seeks + user_scans + user_lookups DESC OPTION (RECOMPILE); -- Order by reads - - --- Show which indexes in the current database are most active for Reads - - ---- Index Read/Write stats (all tables in current DB) ordered by Writes (Query 57) (Overall Index Usage - Writes) -SELECT OBJECT_NAME(s.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, - s.user_updates AS [Writes], user_seeks + user_scans + user_lookups AS [Reads], - i.type_desc AS [IndexType], i.fill_factor AS [FillFactor], i.has_filter, i.filter_definition, - s.last_system_update, s.last_user_update -FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON s.[object_id] = i.[object_id] -WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 -AND i.index_id = s.index_id -AND s.database_id = DB_ID() -ORDER BY s.user_updates DESC OPTION (RECOMPILE); -- Order by writes - --- Show which indexes in the current database are most active for Writes - - --- Get lock waits for current database (Query 58) (Lock Waits) -SELECT o.name AS [table_name], i.name AS [index_name], ios.index_id, ios.partition_number, - SUM(ios.row_lock_wait_count) AS [total_row_lock_waits], - SUM(ios.row_lock_wait_in_ms) AS [total_row_lock_wait_in_ms], - SUM(ios.page_lock_wait_count) AS [total_page_lock_waits], - SUM(ios.page_lock_wait_in_ms) AS [total_page_lock_wait_in_ms], - SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) AS [total_lock_wait_in_ms] -FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) AS ios -INNER JOIN sys.objects AS o WITH (NOLOCK) -ON ios.[object_id] = o.[object_id] -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON ios.[object_id] = i.[object_id] -AND ios.index_id = i.index_id -WHERE o.[object_id] > 100 -GROUP BY o.name, i.name, ios.index_id, ios.partition_number -HAVING SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) > 0 -ORDER BY total_lock_wait_in_ms DESC OPTION (RECOMPILE); - --- This query is helpful for troubleshooting blocking and deadlocking issues - - --- Look at recent Full backups for the current database (Query 59) (Recent Full Backups) -SELECT TOP (30) bs.machine_name, bs.server_name, bs.database_name AS [Database Name], bs.recovery_model, -CONVERT (BIGINT, bs.backup_size / 1048576 ) AS [Uncompressed Backup Size (MB)], -CONVERT (BIGINT, bs.compressed_backup_size / 1048576 ) AS [Compressed Backup Size (MB)], -CONVERT (NUMERIC (20,2), (CONVERT (FLOAT, bs.backup_size) / -CONVERT (FLOAT, bs.compressed_backup_size))) AS [Compression Ratio], -DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) AS [Backup Elapsed Time (sec)], -bs.backup_finish_date AS [Backup Finish Date] -FROM msdb.dbo.backupset AS bs WITH (NOLOCK) -WHERE DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) > 0 -AND bs.backup_size > 0 -AND bs.type = 'D' -- Change to L if you want Log backups -AND database_name = DB_NAME(DB_ID()) -ORDER BY bs.backup_finish_date DESC OPTION (RECOMPILE); - --- Are your backup sizes and times changing over time? --- Are you using backup compression? - - --- These three Pluralsight Courses go into more detail about how to run these queries and interpret the results - --- SQL Server 2014 DMV Diagnostic Queries Part 1 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part1 - --- SQL Server 2014 DMV Diagnostic Queries Part 2 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part2 - --- SQL Server 2014 DMV Diagnostic Queries Part 3 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part3 - + +-- SQL Server 2008 Diagnostic Information Queries +-- Glenn Berry +-- Last Modified: February 1, 2019 +-- https://sqlserverperformance.wordpress.com/ +-- https://www.sqlskills.com/blogs/glenn/ +-- Twitter: GlennAlanBerry + +-- Please listen to my Pluralsight courses +-- https://www.pluralsight.com/author/glenn-berry + +-- If you want to find all of our SQLskills SQL101 blog posts, check out https://www.sqlskills.com/help/sql101/ + +-- Many of these queries will not work if you have databases in 80 compatibility mode +-- Please make sure you are using the correct version of these diagnostic queries for your version of SQL Server + +--****************************************************************************** +--* Copyright (C) 2019 Glenn Berry, SQLskills.com +--* All rights reserved. +--* +--* For more scripts and sample code, check out +--* https://www.sqlskills.com/blogs/glenn +--* +--* You may alter this code for your own *non-commercial* purposes. You may +--* republish altered code as long as you include this copyright and give due credit. +--* +--* +--* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF +--* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED +--* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A +--* PARTICULAR PURPOSE. +--* +--****************************************************************************** + +-- Check the major product version to see if it is SQL Server 2008 +IF NOT EXISTS (SELECT * WHERE CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')) LIKE '10%') + BEGIN + DECLARE @ProductVersion varchar(128) = CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')); + RAISERROR ('Script does not match the ProductVersion [%s] of this instance. Many of these queries may not work on this version.' , 18 , 16 , @ProductVersion); + END + ELSE + PRINT N'You have the correct major version of SQL Server for this diagnostic information script'; + + +-- Instance level queries ******************************* + +-- SQL and OS Version information for current instance (Query 1) (Version Info) +SELECT @@SERVERNAME AS [Server Name], @@VERSION AS [SQL Server and OS Version Info]; +------ + + +-- SQL Server 2008 RTM Builds SQL Server 2008 SP1 Builds SQL Server 2008 SP2 Builds SQL Server 2008 SP3 Builds SQL Server 2008 SP4 Builds +-- Build Description Build Description Build Description Build Description Build Description +-- 10.0.1600 Gold RTM +-- 10.0.1763 RTM CU1 +-- 10.0.1779 RTM CU2 +-- 10.0.1787 RTM CU3 --> 10.0.2531 SP1 RTM +-- 10.0.1798 RTM CU4 --> 10.0.2710 SP1 CU1 +-- 10.0.1806 RTM CU5 --> 10.0.2714 SP1 CU2 +-- 10.0.1812 RTM CU6 --> 10.0.2723 SP1 CU3 +-- 10.0.1818 RTM CU7 --> 10.0.2734 SP1 CU4 +-- 10.0.1823 RTM CU8 --> 10.0.2746 SP1 CU5 +-- 10.0.1828 RTM CU9 --> 10.0.2757 SP1 CU6 +-- 10.0.1835 RTM CU10 --> 10.0.2766 SP1 CU7 +-- RTM Branch Retired --> 10.0.2775 SP1 CU8 --> 10.0.4000 SP2 RTM +-- 10.0.2789 SP1 CU9 +-- 10.0.2799 SP1 CU10 +-- 10.0.2804 SP1 CU11 --> 10.0.4266 SP2 CU1 +-- 10.0.2808 SP1 CU12 --> 10.0.4272 SP2 CU2 +-- 10.0.2816 SP1 CU13 --> 10.0.4279 SP2 CU3 +-- 10.0.2821 SP1 CU14 --> 10.0.4285 SP2 CU4 --> 10.0.5500 SP3 RTM +-- 10.0.2847 SP1 CU15 --> 10.0.4316 SP2 CU5 +-- 10.0.2850 SP1 CU16 --> 10.0.4321 SP2 CU6 --> 10.0.5766 SP3 CU1 10/17/2011 +-- SP1 Branch Retired --> 10.0.4323 SP2 CU7 --> 10.0.5768 SP3 CU2 11/21/2011 +-- 10.0.4326 SP2 CU8 --> 10.0.5770 SP3 CU3 1/16/2012 +-- 10.0.4330 SP2 CU9 --> 10.0.5775 SP3 CU4 3/19/2012 +-- 10.0.4332 SP2 CU10 --> 10.0.5785 SP3 CU5 5/21/2012 +-- 10.0.4333 SP2 CU11 --> 10.0.5788 SP3 CU6 7/16/2012 +-- SP2 Branch Retired 10.0.5794 SP3 CU7 9/17/2012 +-- 10.0.5828 SP3 CU8 11/19/2012 +-- 10.0.5829 SP3 CU9 1/21/2013 +-- 10.0.5835 SP3 CU10 3/19/2013 +-- 10.0.5841 SP3 CU11 5/20/2013 +-- 10.0.5844 SP3 CU12 7/15/2013 +-- 10.0.5846 SP3 CU13 9/16/2013 +-- 10.0.5848 SP3 CU14 11/18/2013 +-- 10.0.5850 SP3 CU15 1/20/2014 +-- 10.0.5852 SP3 CU16 3/17/2014 +-- 10.0.5861 SP3 CU17 5/19/2014 +-- 10.0.5867 SP3 CU17+ 10.0.6000 SP4 RTM 9/30/2014 +-- 10.0.6526 SP4 + HF 2/9/2015 +-- Security Update for SQL Server 2008 SP4 (KB4057114) https://www.microsoft.com/en-us/download/details.aspx?id=56418 10.0.6556 SP4 + HF 1/5/2018 +-- +-- SQL Server 2008 RTM is considered an "unsupported service pack" as of April 13, 2010 +-- SQL Server 2008 SP1 is considered an "unsupported service pack" as of September 19, 2011 +-- SQL Server 2008 SP2 is considered an "unsupported service pack" as of September 17, 2012 +-- Any build older than 10.0.5500 is on an "unsupported service pack" + +-- SQL Server 2008 fell out of Mainstream Support on July 8, 2014 + +-- The SQL Server 2008 builds that were released after SQL Server 2008 was released +-- http://support.microsoft.com/kb/956909 +-- +-- The SQL Server 2008 builds that were released after SQL Server 2008 Service Pack 1 was released +-- http://support.microsoft.com/kb/970365 +-- +-- The SQL Server 2008 builds that were released after SQL Server 2008 Service Pack 2 was released +-- http://support.microsoft.com/kb/2402659 +-- +-- The SQL Server 2008 builds that were released after SQL Server 2008 Service Pack 3 was released +-- http://support.microsoft.com/kb/2629969 + +-- Download SQL Server Management Studio (SSMS) +-- https://msdn.microsoft.com/en-us/library/mt238290.aspx + + + +-- When was SQL Server installed (Query 2) (SQL Server Install Date) +SELECT @@SERVERNAME AS [Server Name], create_date AS [SQL Server Install Date] +FROM sys.server_principals WITH (NOLOCK) +WHERE name = N'NT AUTHORITY\SYSTEM' +OR name = N'NT AUTHORITY\NETWORK SERVICE' OPTION (RECOMPILE); +------ + +-- Tells you the date and time that SQL Server was installed +-- It is a good idea to know how old your instance is + + +-- Get selected server properties (Query 3) (Server Properties) +SELECT SERVERPROPERTY('MachineName') AS [MachineName], SERVERPROPERTY('ServerName') AS [ServerName], +SERVERPROPERTY('InstanceName') AS [Instance], SERVERPROPERTY('IsClustered') AS [IsClustered], +SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS [ComputerNamePhysicalNetBIOS], +SERVERPROPERTY('Edition') AS [Edition], SERVERPROPERTY('ProductLevel') AS [ProductLevel], +SERVERPROPERTY('ProductVersion') AS [ProductVersion], SERVERPROPERTY('ProcessID') AS [ProcessID], +SERVERPROPERTY('Collation') AS [Collation], SERVERPROPERTY('IsFullTextInstalled') AS [IsFullTextInstalled], +SERVERPROPERTY('IsIntegratedSecurityOnly') AS [IsIntegratedSecurityOnly]; +------ + +-- This gives you a lot of useful information about your instance of SQL Server, +-- such as the ProcessID for SQL Server and your collation + + +-- Get SQL Server Agent jobs and Category information (Query 4) (SQL Server Agent Jobs) +SELECT sj.name AS [Job Name], sj.[description] AS [Job Description], SUSER_SNAME(sj.owner_sid) AS [Job Owner], +sj.date_created AS [Date Created], sj.[enabled] AS [Job Enabled], +sj.notify_email_operator_id, sj.notify_level_email, sc.name AS [CategoryName], +s.[enabled] AS [Sched Enabled], js.next_run_date, js.next_run_time +FROM msdb.dbo.sysjobs AS sj WITH (NOLOCK) +INNER JOIN msdb.dbo.syscategories AS sc WITH (NOLOCK) +ON sj.category_id = sc.category_id +LEFT OUTER JOIN msdb.dbo.sysjobschedules AS js WITH (NOLOCK) +ON sj.job_id = js.job_id +LEFT OUTER JOIN msdb.dbo.sysschedules AS s WITH (NOLOCK) +ON js.schedule_id = s.schedule_id +ORDER BY sj.name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent jobs, who owns them and how they are configured +-- Look for Agent jobs that are not owned by sa +-- Look for jobs that have a notify_email_operator_id set to 0 (meaning no operator) +-- Look for jobs that have a notify_level_email set to 0 (meaning no e-mail is ever sent) +-- +-- MSDN sysjobs documentation +-- http://msdn.microsoft.com/en-us/library/ms189817.aspx + + +-- Get SQL Server Agent Alert Information (Query 5) (SQL Server Agent Alerts) +SELECT name, event_source, message_id, severity, [enabled], has_notification, + delay_between_responses, occurrence_count, last_occurrence_date, last_occurrence_time +FROM msdb.dbo.sysalerts WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent Alerts (which are different from SQL Server Agent jobs) +-- Read more about Agent Alerts here: https://www.sqlskills.com/blogs/glenn/creating-sql-server-agent-alerts-for-critical-errors/ + + +-- Returns a list of all global trace flags that are enabled (Query 6) (Global Trace Flags) +DBCC TRACESTATUS (-1); +------ + +-- If no global trace flags are enabled, no results will be returned. +-- It is very useful to know what global trace flags are currently enabled as part of the diagnostic process. + +-- Common trace flags that should be enabled in most cases +-- TF 1117 - When growing a data file, grow all files at the same time so they remain the same size, reducing allocation contention points +-- http://support2.microsoft.com/kb/2154845 +-- +-- TF 1118 - Helps alleviate allocation contention in tempdb, SQL Server allocates full extents to each database object, +-- thereby eliminating the contention on SGAM pages (more important with older versions of SQL Server) +-- Recommendations to reduce allocation contention in SQL Server tempdb database +-- http://support2.microsoft.com/kb/2154845 + +-- TF 2371 - Lowers auto update statistics threshold for large tables +-- http://blogs.msdn.com/b/saponsqlserver/archive/2011/09/07/changes-to-automatic-update-statistics-in-sql-server-traceflag-2371.aspx + +-- TF 3226 - Supresses logging of successful database backup messages to the SQL Server Error Log +-- https://www.sqlskills.com/blogs/paul/fed-up-with-backup-success-messages-bloating-your-error-logs/ + + +-- SQL Server NUMA Node information (Query 7) (SQL Server NUMA Info) +SELECT node_id, node_state_desc, memory_node_id, online_scheduler_count, + active_worker_count, avg_load_balance, resource_monitor_state +FROM sys.dm_os_nodes WITH (NOLOCK) +WHERE node_state_desc <> N'ONLINE DAC' OPTION (RECOMPILE); +------ + +-- Gives you some useful information about the composition +-- and relative load on your NUMA nodes + + +-- Hardware information from SQL Server 2008 (Query 8) (Hardware Info) +-- (Cannot distinguish between HT and multi-core) +SELECT cpu_count AS [Logical CPU Count], hyperthread_ratio AS [Hyperthread Ratio], +cpu_count/hyperthread_ratio AS [Physical CPU Count], +physical_memory_in_bytes/1048576 AS [Physical Memory (MB)], +sqlserver_start_time, +DATEDIFF(hour, sqlserver_start_time, GETDATE()) AS [SQL Server Up Time (hrs)] +FROM sys.dm_os_sys_info WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Gives you some good basic hardware information about your database server + + +-- Get System Manufacturer and model number from (Query 9) (System Manufacturer) +-- SQL Server Error log. This query might take a few seconds +-- if you have not recycled your error log recently +EXEC sys.xp_readerrorlog 0, 1, N'Manufacturer'; +------ + +-- This can help you determine the capabilities +-- and capacities of your database server + + +-- Get processor description from Windows Registry (Query 10) (Processor Description) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\CentralProcessor\0', N'ProcessorNameString'; +------ + +-- Gives you the model number and rated clock speed of your processor(s) +-- Your processors may be running at less that the rated clock speed due +-- to the Windows Power Plan or hardware power management + +-- You can use CPU-Z to get your actual CPU core speed and a lot of other useful information +-- http://www.cpuid.com/softwares/cpu-z.html + +-- You can learn more about processor selection for SQL Server by following this link +-- https://www.sqlskills.com/blogs/glenn/processor-selection-for-sql-server/ + + + +-- Get the current node name from your cluster nodes (Query 11) (Cluster Node Properties) +-- (if your database server is in a failover cluster) +SELECT NodeName +FROM sys.dm_os_cluster_nodes WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Knowing which node owns the cluster resources is critical +-- Especially when you are installing Windows or SQL Server updates +-- You will see no results if your instance is not clustered + + +-- Get configuration values for instance (Query 12) (Configuration Values) +SELECT name, value, value_in_use, minimum, maximum, [description], is_dynamic, is_advanced +FROM sys.configurations WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Focus on these settings: +-- backup compression default (should be 1 in most cases) +-- clr enabled (only enable if it is needed) +-- cost threshold for parallelism (depends on your workload) +-- lightweight pooling (should be zero) +-- max degree of parallelism (depends on your workload) +-- max server memory (MB) (set to an appropriate value, not the default) +-- optimize for ad hoc workloads (should be 1) +-- priority boost (should be zero) +-- remote admin connections (should be 1) + + + + + +-- File names and paths for all user and system databases on instance (Query 13) (Database Filenames and Paths) +SELECT DB_NAME([database_id]) AS [Database Name], + [file_id], [name], physical_name, [type_desc], state_desc, + is_percent_growth, growth, + CONVERT(bigint, growth/128.0) AS [Growth in MB], + CONVERT(bigint, size/128.0) AS [Total Size in MB] +FROM sys.master_files WITH (NOLOCK) +ORDER BY DB_NAME([database_id]), [file_id] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- Are data files and log files on different drives? +-- Is everything on the C: drive? +-- Is TempDB on dedicated drives? +-- Is there only one TempDB data file? +-- Are all of the TempDB data files the same size? +-- Are there multiple data files for user databases? +-- Is percent growth enabled for any files (which is bad)? + + +-- Look for I/O requests taking longer than 15 seconds in the five most recent SQL Server Error Logs (Query 14) (IO Warnings) +CREATE TABLE #IOWarningResults(LogDate datetime, ProcessInfo sysname, LogText nvarchar(1000)); + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 0, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 1, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 2, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 3, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 4, 1, N'taking longer than 15 seconds'; + +SELECT LogDate, ProcessInfo, LogText +FROM #IOWarningResults +ORDER BY LogDate DESC; + +DROP TABLE #IOWarningResults; +------ + +-- Finding 15 second I/O warnings in the SQL Server Error Log is useful evidence of +-- poor I/O performance (which might have many different causes) +-- Look to see if you see any patterns in the results (same files, same drives, same time of day, etc.) + +-- Diagnostics in SQL Server help detect stalled and stuck I/O operations +-- https://support.microsoft.com/en-us/kb/897284 + + +-- Drive level latency information (Query 15) (Drive Level Latency) +-- Based on code from Jimmy May +SELECT tab.[Drive], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (io_stall_read_ms/num_of_reads) + END AS [Read Latency], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (io_stall_write_ms/num_of_writes) + END AS [Write Latency], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE (io_stall/(num_of_reads + num_of_writes)) + END AS [Overall Latency], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (num_of_bytes_read/num_of_reads) + END AS [Avg Bytes/Read], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (num_of_bytes_written/num_of_writes) + END AS [Avg Bytes/Write], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE ((num_of_bytes_read + num_of_bytes_written)/(num_of_reads + num_of_writes)) + END AS [Avg Bytes/Transfer] +FROM (SELECT LEFT(UPPER(mf.physical_name), 2) AS Drive, SUM(num_of_reads) AS num_of_reads, + SUM(io_stall_read_ms) AS io_stall_read_ms, SUM(num_of_writes) AS num_of_writes, + SUM(io_stall_write_ms) AS io_stall_write_ms, SUM(num_of_bytes_read) AS num_of_bytes_read, + SUM(num_of_bytes_written) AS num_of_bytes_written, SUM(io_stall) AS io_stall + FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS vfs + INNER JOIN sys.master_files AS mf WITH (NOLOCK) + ON vfs.database_id = mf.database_id AND vfs.file_id = mf.file_id + GROUP BY LEFT(UPPER(mf.physical_name), 2)) AS tab +ORDER BY [Overall Latency] OPTION (RECOMPILE); +------ + +-- Shows you the drive-level latency for reads and writes, in milliseconds +-- Latency above 20-25ms is usually a problem + + +-- Calculates average stalls per read, per write, and per total input/output for each database file (Query 16) (IO Stalls by File) +SELECT DB_NAME(fs.database_id) AS [Database Name], CAST(fs.io_stall_read_ms/(1.0 + fs.num_of_reads) AS NUMERIC(16,1)) AS [avg_read_stall_ms], +CAST(fs.io_stall_write_ms/(1.0 + fs.num_of_writes) AS NUMERIC(16,1)) AS [avg_write_stall_ms], +CAST((fs.io_stall_read_ms + fs.io_stall_write_ms)/(1.0 + fs.num_of_reads + fs.num_of_writes) AS NUMERIC(16,1)) AS [avg_io_stall_ms], +CONVERT(DECIMAL(18,2), mf.size/128.0) AS [File Size (MB)], mf.physical_name, mf.type_desc, fs.io_stall_read_ms, fs.num_of_reads, +fs.io_stall_write_ms, fs.num_of_writes, fs.io_stall_read_ms + fs.io_stall_write_ms AS [io_stalls], fs.num_of_reads + fs.num_of_writes AS [total_io] +FROM sys.dm_io_virtual_file_stats(null,null) AS fs +INNER JOIN sys.master_files AS mf WITH (NOLOCK) +ON fs.database_id = mf.database_id +AND fs.[file_id] = mf.[file_id] +ORDER BY avg_io_stall_ms DESC OPTION (RECOMPILE); +------ + +-- Helps determine which database files on the entire instance have the most I/O bottlenecks +-- This can help you decide whether certain LUNs are overloaded and whether you might +-- want to move some files to a different location or perhaps improve your I/O performance + + +-- Recovery model, log reuse wait description, log file size, log usage size (Query 17) (Database Properties) +-- and compatibility level for all databases on instance +SELECT db.[name] AS [Database Name], SUSER_SNAME(db.owner_sid) AS [Database Owner], db.recovery_model_desc AS [Recovery Model], +db.log_reuse_wait_desc AS [Log Reuse Wait Description], +ls.cntr_value AS [Log Size (KB)], lu.cntr_value AS [Log Used (KB)], +CAST(CAST(lu.cntr_value AS FLOAT) / CAST(ls.cntr_value AS FLOAT)AS DECIMAL(18,2)) * 100 AS [Log Used %], +db.[compatibility_level] AS [DB Compatibility Level], +db.page_verify_option_desc AS [Page Verify Option], db.is_auto_create_stats_on, db.is_auto_update_stats_on, +db.is_auto_update_stats_async_on, db.is_parameterization_forced, +db.snapshot_isolation_state_desc, db.is_read_committed_snapshot_on, +db.is_auto_close_on, db.is_auto_shrink_on, db.is_cdc_enabled, db.is_published +FROM sys.databases AS db WITH (NOLOCK) +INNER JOIN sys.dm_os_performance_counters AS lu WITH (NOLOCK) +ON db.name = lu.instance_name +INNER JOIN sys.dm_os_performance_counters AS ls WITH (NOLOCK) +ON db.name = ls.instance_name +WHERE lu.counter_name LIKE N'Log File(s) Used Size (KB)%' +AND ls.counter_name LIKE N'Log File(s) Size (KB)%' +AND ls.cntr_value > 0 OPTION (RECOMPILE); +------ + +-- Things to look at: +-- How many databases are on the instance? +-- What recovery models are they using? +-- What is the log reuse wait description? +-- How full are the transaction logs ? +-- What compatibility level are the databases on? +-- What is the Page Verify Option? (should be CHECKSUM) +-- Is Auto Update Statistics Asynchronously enabled? +-- Make sure auto_shrink and auto_close are not enabled! + + + +-- Missing Indexes for all databases by Index Advantage (Query 18) (Missing Indexes All Databases) +SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Getting missing index information for all of the databases on the instance is very useful +-- Look at last user seek time, number of user seeks to help determine source and importance +-- Also look at avg_user_impact and avg_total_user_cost to help determine importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + + + +-- Get VLF Counts for all databases on the instance (Query 19) (VLF Counts) +-- (adapted from Michelle Ufford) +CREATE TABLE #VLFInfo (FileID int, + FileSize bigint, StartOffset bigint, + FSeqNo bigint, [Status] bigint, + Parity bigint, CreateLSN numeric(38)); + +CREATE TABLE #VLFCountResults(DatabaseName sysname, VLFCount int); + +EXEC sp_MSforeachdb N'Use [?]; + + INSERT INTO #VLFInfo + EXEC sp_executesql N''DBCC LOGINFO([?])''; + + INSERT INTO #VLFCountResults + SELECT DB_NAME(), COUNT(*) + FROM #VLFInfo; + + TRUNCATE TABLE #VLFInfo;' + +SELECT DatabaseName, VLFCount +FROM #VLFCountResults +ORDER BY VLFCount DESC; + +DROP TABLE #VLFInfo; +DROP TABLE #VLFCountResults; +------ + +-- High VLF counts can affect write performance +-- and they can make full database restores and crash recovery take much longer +-- Try to keep your VLF counts under 200 in most cases + + + +-- Get CPU utilization by database (Query 20) (CPU Usage by Database) +WITH DB_CPU_Stats +AS +(SELECT pa.DatabaseID, DB_Name(pa.DatabaseID) AS [Database Name], SUM(qs.total_worker_time/1000) AS [CPU_Time_Ms] + FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) + CROSS APPLY (SELECT CONVERT(int, value) AS [DatabaseID] + FROM sys.dm_exec_plan_attributes(qs.plan_handle) + WHERE attribute = N'dbid') AS pa + GROUP BY DatabaseID) +SELECT ROW_NUMBER() OVER(ORDER BY [CPU_Time_Ms] DESC) AS [CPU Rank], + [Database Name], [CPU_Time_Ms] AS [CPU Time (ms)], + CAST([CPU_Time_Ms] * 1.0 / SUM([CPU_Time_Ms]) OVER() * 100.0 AS DECIMAL(5, 2)) AS [CPU Percent] +FROM DB_CPU_Stats +WHERE DatabaseID <> 32767 -- ResourceDB +ORDER BY [CPU Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most CPU resources on the instance +-- Note: This only reflects CPU usage from the currently cached query plans + + +-- Get I/O utilization by database (Query 21) (IO Usage By Database) +WITH Aggregate_IO_Statistics +AS +(SELECT DB_NAME(database_id) AS [Database Name], +CAST(SUM(num_of_bytes_read + num_of_bytes_written)/1048576 AS DECIMAL(12, 2)) AS io_in_mb +FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS [DM_IO_STATS] +GROUP BY database_id) +SELECT ROW_NUMBER() OVER(ORDER BY io_in_mb DESC) AS [I/O Rank], [Database Name], io_in_mb AS [Total I/O (MB)], + CAST(io_in_mb/ SUM(io_in_mb) OVER() * 100.0 AS DECIMAL(5,2)) AS [I/O Percent] +FROM Aggregate_IO_Statistics +ORDER BY [I/O Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most I/O resources on the instance + + +-- Get total buffer usage by database for current instance (Query 22) (Total Buffer Usage by Database) +-- This make take some time to run on a busy instance +WITH AggregateBufferPoolUsage +AS +(SELECT DB_NAME(database_id) AS [Database Name], +CAST(COUNT(*) * 8/1024.0 AS DECIMAL (10,2)) AS [CachedSize] +FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) +WHERE database_id <> 32767 -- ResourceDB +GROUP BY DB_NAME(database_id)) +SELECT ROW_NUMBER() OVER(ORDER BY CachedSize DESC) AS [Buffer Pool Rank], [Database Name], CachedSize AS [Cached Size (MB)], + CAST(CachedSize / SUM(CachedSize) OVER() * 100.0 AS DECIMAL(5,2)) AS [Buffer Pool Percent] +FROM AggregateBufferPoolUsage +ORDER BY [Buffer Pool Rank] OPTION (RECOMPILE); +------ + +-- Tells you how much memory (in the buffer pool) +-- is being used by each database on the instance + + +-- Clear Wait Stats with this command +-- DBCC SQLPERF('sys.dm_os_wait_stats', CLEAR); + +-- Isolate top waits for server instance since last restart or wait statistics clear (Query 23) (Top Waits) +WITH [Waits] +AS (SELECT wait_type, wait_time_ms/ 1000.0 AS [WaitS], + (wait_time_ms - signal_wait_time_ms) / 1000.0 AS [ResourceS], + signal_wait_time_ms / 1000.0 AS [SignalS], + waiting_tasks_count AS [WaitCount], + 100.0 * wait_time_ms / SUM (wait_time_ms) OVER() AS [Percentage], + ROW_NUMBER() OVER(ORDER BY wait_time_ms DESC) AS [RowNum] + FROM sys.dm_os_wait_stats WITH (NOLOCK) + WHERE [wait_type] NOT IN ( + N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', + N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', + N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', + N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', + N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', + N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', + N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', + N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', + N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', + N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', + N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', + N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', + N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', + N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', + N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', + N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', + N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', + N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', + N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') + AND waiting_tasks_count > 0) +SELECT + MAX (W1.wait_type) AS [WaitType], + CAST (MAX (W1.Percentage) AS DECIMAL (5,2)) AS [Wait Percentage], + CAST ((MAX (W1.WaitS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgWait_Sec], + CAST ((MAX (W1.ResourceS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgRes_Sec], + CAST ((MAX (W1.SignalS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgSig_Sec], + CAST (MAX (W1.WaitS) AS DECIMAL (16,2)) AS [Wait_Sec], + CAST (MAX (W1.ResourceS) AS DECIMAL (16,2)) AS [Resource_Sec], + CAST (MAX (W1.SignalS) AS DECIMAL (16,2)) AS [Signal_Sec], + MAX (W1.WaitCount) AS [Wait Count], + CAST (N'https://www.sqlskills.com/help/waits/' + W1.wait_type AS XML) AS [Help/Info URL] +FROM Waits AS W1 +INNER JOIN Waits AS W2 +ON W2.RowNum <= W1.RowNum +GROUP BY W1.RowNum, W1.wait_type +HAVING SUM (W2.Percentage) - MAX (W1.Percentage) < 99 -- percentage threshold +OPTION (RECOMPILE); +------ + +-- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure + +-- SQL Server Wait Types Library (Paul Randal) +-- https://www.sqlskills.com/help/waits/ + +-- The SQL Server Wait Type Repository +-- http://blogs.msdn.com/b/psssql/archive/2009/11/03/the-sql-server-wait-type-repository.aspx + +-- Wait statistics, or please tell me where it hurts +-- https://www.sqlskills.com/blogs/paul/wait-statistics-or-please-tell-me-where-it-hurts/ + +-- SQL Server 2005 Performance Tuning using the Waits and Queues +-- http://technet.microsoft.com/en-us/library/cc966413.aspx + +-- sys.dm_os_wait_stats (Transact-SQL) +-- http://msdn.microsoft.com/en-us/library/ms179984(v=sql.105).aspx + + + + +-- Signal Waits for instance (Query 24) (Signal Waits) +SELECT CAST(100.0 * SUM(signal_wait_time_ms) / SUM (wait_time_ms) AS NUMERIC(20,2)) AS [% Signal (CPU) Waits], +CAST(100.0 * SUM(wait_time_ms - signal_wait_time_ms) / SUM (wait_time_ms) AS NUMERIC(20,2)) AS [% Resource Waits] +FROM sys.dm_os_wait_stats WITH (NOLOCK) +WHERE wait_type NOT IN ( + N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', + N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', + N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', + N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', + N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', + N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', + N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', + N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', + N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', + N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', + N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', + N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', + N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', + N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', + N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', + N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', + N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', + N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', + N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') OPTION (RECOMPILE); +------ + +-- Signal Waits above 10-15% is usually a confirming sign of CPU pressure +-- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure +-- Resource waits are non-CPU related waits + + +-- Get logins that are connected and how many sessions they have (Query 25) (Connection Counts) +SELECT login_name, [program_name], COUNT(session_id) AS [session_count] +FROM sys.dm_exec_sessions WITH (NOLOCK) +GROUP BY login_name, [program_name] +ORDER BY COUNT(session_id) DESC OPTION (RECOMPILE); +------ + +-- This can help characterize your workload and +-- determine whether you are seeing a normal level of activity + + +-- Get a count of SQL connections by IP address (Query 26) (Connection Counts by IP Address) +SELECT ec.client_net_address, es.[program_name], es.[host_name], es.login_name, +COUNT(ec.session_id) AS [connection count] +FROM sys.dm_exec_sessions AS es WITH (NOLOCK) +INNER JOIN sys.dm_exec_connections AS ec WITH (NOLOCK) +ON es.session_id = ec.session_id +GROUP BY ec.client_net_address, es.[program_name], es.[host_name], es.login_name +ORDER BY ec.client_net_address, es.[program_name] OPTION (RECOMPILE); +------ + +-- This helps you figure where your database load is coming from +-- and verifies connectivity from other machines + + +-- Get Average Task Counts (run multiple times) (Query 27) (Avg Task Counts) +SELECT AVG(current_tasks_count) AS [Avg Task Count], +AVG(runnable_tasks_count) AS [Avg Runnable Task Count], +AVG(pending_disk_io_count) AS [Avg Pending DiskIO Count] +FROM sys.dm_os_schedulers WITH (NOLOCK) +WHERE scheduler_id < 255 OPTION (RECOMPILE); +------ + +-- Sustained values above 10 suggest further investigation in that area +-- High Avg Task Counts are often caused by blocking/deadlocking or other resource contention + +-- Sustained values above 1 suggest further investigation in that area +-- High Avg Runnable Task Counts are a good sign of CPU pressure +-- High Avg Pending DiskIO Counts are a sign of disk pressure + +-- How to Do Some Very Basic SQL Server Monitoring +-- https://www.sqlskills.com/blogs/glenn/how-to-do-some-very-basic-sql-server-monitoring/ + + + +-- Get CPU Utilization History for last 256 minutes (in one minute intervals) (Query 28) (CPU Utilization History) +-- This version works with SQL Server 2008 +DECLARE @ts_now bigint = (SELECT cpu_ticks/(cpu_ticks/ms_ticks) FROM sys.dm_os_sys_info WITH (NOLOCK)); + +SELECT TOP(256) SQLProcessUtilization AS [SQL Server Process CPU Utilization], + SystemIdle AS [System Idle Process], + 100 - SystemIdle - SQLProcessUtilization AS [Other Process CPU Utilization], + DATEADD(ms, -1 * (@ts_now - [timestamp]), GETDATE()) AS [Event Time] +FROM ( + SELECT record.value('(./Record/@id)[1]', 'int') AS record_id, + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') + AS [SystemIdle], + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', + 'int') + AS [SQLProcessUtilization], [timestamp] + FROM ( + SELECT [timestamp], CONVERT(xml, record) AS [record] + FROM sys.dm_os_ring_buffers WITH (NOLOCK) + WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' + AND record LIKE N'%%') AS x + ) AS y +ORDER BY record_id DESC OPTION (RECOMPILE); +------ + +-- Look at the trend over the entire period. +-- Also look at high sustained Other Process CPU Utilization values + + +-- Get top total worker time queries for entire instance (Query 29) (Top Worker Time Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], t.[text] AS [Query Text], +qs.total_worker_time AS [Total Worker Time], qs.min_worker_time AS [Min Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.max_worker_time AS [Max Worker Time], qs.execution_count AS [Execution Count], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.total_physical_reads/qs.execution_count AS [Avg Physical Reads], qs.creation_time AS [Creation Time] +, qp.query_plan AS [Query Plan] -- comment out this column if copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + + +-- Helps you find the most expensive queries from a CPU perspective across the entire instance + + + +-- Good basic information about OS memory amounts and state (Query 30) (System Memory) +SELECT total_physical_memory_kb/1024 AS [Physical Memory (MB)], + available_physical_memory_kb/1024 AS [Available Memory (MB)], + total_page_file_kb/1024 AS [Total Page File (MB)], + available_page_file_kb/1024 AS [Available Page File (MB)], + system_cache_kb/1024 AS [System Cache (MB)], + system_memory_state_desc AS [System Memory State] +FROM sys.dm_os_sys_memory WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You want to see "Available physical memory is high" +-- This indicates that you are not under external memory pressure + + +-- SQL Server Process Address space info (Query 31) (Process Memory) +-- (shows whether locked pages is enabled, among other things) +SELECT physical_memory_in_use_kb/1024 AS [SQL Server Memory Usage (MB)], + large_page_allocations_kb, locked_page_allocations_kb, page_fault_count, + memory_utilization_percentage, available_commit_limit_kb, + process_physical_memory_low, process_virtual_memory_low +FROM sys.dm_os_process_memory WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You want to see 0 for process_physical_memory_low +-- You want to see 0 for process_virtual_memory_low +-- This indicates that you are not under internal memory pressure + + +-- Page Life Expectancy (PLE) value for each NUMA node in current instance (Query 32) (PLE by NUMA Node) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], instance_name, cntr_value AS [Page Life Expectancy] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Buffer Node%' -- Handles named instances +AND counter_name = N'Page life expectancy' OPTION (RECOMPILE); +------ + +-- PLE is a good measurement of memory pressure. +-- Higher PLE is better. Watch the trend over time, not the absolute value. +-- This will only return one row for non-NUMA systems. + +-- Page Life Expectancy isnt what you think +-- http://www.sqlskills.com/blogs/paul/page-life-expectancy-isnt-what-you-think/ + + + +-- Memory Grants Pending value for current instance (Query 33) (Memory Grants Pending) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], cntr_value AS [Memory Grants Pending] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Memory Manager%' -- Handles named instances +AND counter_name = N'Memory Grants Pending' OPTION (RECOMPILE); +------ + +-- Memory Grants Pending above zero for a sustained period is a very strong indicator of memory pressure + + +-- Memory Clerk Usage for instance (Query 34) (Memory Clerk Usage) +-- Look for high value for CACHESTORE_SQLCP (Ad-hoc query plans) +SELECT TOP(10) [type] AS [Memory Clerk Type], SUM(single_pages_kb)/1024 AS [SPA Memory Usage (MB)] +FROM sys.dm_os_memory_clerks WITH (NOLOCK) +GROUP BY [type] +ORDER BY SUM(single_pages_kb) DESC OPTION (RECOMPILE); +------ + +-- CACHESTORE_SQLCP SQL Plans +-- These are cached SQL statements or batches that aren't in stored procedures, functions and triggers +-- Watch out for high values for CACHESTORE_SQLCP + +-- CACHESTORE_OBJCP Object Plans +-- These are compiled plans for stored procedures, functions and triggers + + + +-- Find single-use, ad-hoc and prepared queries that are bloating the plan cache (Query 35) (Ad hoc Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], t.[text] AS [Query Text], +cp.objtype AS [Object Type], cp.cacheobjtype AS [Cache Object Type], +cp.size_in_bytes/1024 AS [Plan Size in KB] +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +WHERE cp.cacheobjtype = N'Compiled Plan' +AND cp.objtype IN (N'Adhoc', N'Prepared') +AND cp.usecounts = 1 +ORDER BY cp.size_in_bytes DESC, DB_NAME(t.[dbid]) OPTION (RECOMPILE); +------ + +-- Gives you the text, type and size of single-use ad-hoc and prepared queries that waste space in the plan cache +-- Enabling 'optimize for ad hoc workloads' for the instance can help (SQL Server 2008 and above only) +-- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this. +-- Enabling forced parameterization for the database can help, but test first! + +-- Plan cache, adhoc workloads and clearing the single-use plan cache bloat +-- https://www.sqlskills.com/blogs/kimberly/plan-cache-adhoc-workloads-and-clearing-the-single-use-plan-cache-bloat/ + + + +-- Database specific queries ***************************************************************** + +-- **** Please switch to a user database that you are interested in! ***** +USE YourDatabaseName; -- make sure to change to an actual database on your instance, not the master system database +GO + +-- Individual File Sizes and space available for current database (Query 36) (File Sizes and Space) +SELECT f.name AS [File Name] , f.physical_name AS [Physical Name], +CAST((f.size/128.0) AS DECIMAL(15,2)) AS [Total Size in MB], +CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) +AS [Available Space In MB], [file_id], fg.name AS [Filegroup Name] +FROM sys.database_files AS f WITH (NOLOCK) +LEFT OUTER JOIN sys.data_spaces AS fg WITH (NOLOCK) +ON f.data_space_id = fg.data_space_id OPTION (RECOMPILE); +------ + +-- Look at how large and how full the files are and where they are located +-- Make sure the transaction log is not full!! + + + +-- I/O Statistics by file for the current database (Query 37) (IO Stats By File) +SELECT DB_NAME(DB_ID()) AS [Database Name], df.name AS [Logical Name], vfs.[file_id], +df.physical_name AS [Physical Name], vfs.num_of_reads, vfs.num_of_writes, vfs.io_stall_read_ms, vfs.io_stall_write_ms, +CAST(100. * vfs.io_stall_read_ms/(vfs.io_stall_read_ms + vfs.io_stall_write_ms) AS DECIMAL(10,1)) AS [IO Stall Reads Pct], +CAST(100. * vfs.io_stall_write_ms/(vfs.io_stall_write_ms + vfs.io_stall_read_ms) AS DECIMAL(10,1)) AS [IO Stall Writes Pct], +(vfs.num_of_reads + vfs.num_of_writes) AS [Writes + Reads], +CAST(vfs.num_of_bytes_read/1048576.0 AS DECIMAL(10, 2)) AS [MB Read], +CAST(vfs.num_of_bytes_written/1048576.0 AS DECIMAL(10, 2)) AS [MB Written], +CAST(100. * vfs.num_of_reads/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Reads Pct], +CAST(100. * vfs.num_of_writes/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Write Pct], +CAST(100. * vfs.num_of_bytes_read/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Read Bytes Pct], +CAST(100. * vfs.num_of_bytes_written/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Written Bytes Pct] +FROM sys.dm_io_virtual_file_stats(DB_ID(), NULL) AS vfs +INNER JOIN sys.database_files AS df WITH (NOLOCK) +ON vfs.[file_id]= df.[file_id] OPTION (RECOMPILE); +------ + +-- This helps you characterize your workload better from an I/O perspective for this database +-- It helps you determine whether you has an OLTP or DW/DSS type of workload + + + +-- Top cached queries by Execution Count (SQL Server 2008) (Query 38) (Query Execution Counts) +SELECT TOP (100) qs.execution_count, qs.total_worker_time, qs.total_logical_reads, qs.total_elapsed_time, +SUBSTRING(qt.TEXT,qs.statement_start_offset/2 +1, +(CASE WHEN qs.statement_end_offset = -1 + THEN LEN(CONVERT(NVARCHAR(MAX), qt.TEXT)) * 2 + ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) AS query_text +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + + +-- Look at non-stored procedure queries + + +-- Top Cached SPs By Execution Count (SQL 2008) (Query 39) (SP Execution Counts) +SELECT TOP(100) p.name AS [SP Name], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.total_worker_time AS [TotalWorkerTime], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +qs.cached_time +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +WHERE qs.database_id = DB_ID() +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Tells you which cached stored procedures are called the most often +-- This helps you characterize and baseline your workload + + +-- Top Cached SPs By Avg Elapsed Time (SQL 2008) (Query 40) (SP Avg Elapsed Time) +SELECT TOP(25) p.name AS [SP Name], qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +qs.total_elapsed_time, qs.execution_count, ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, +GETDATE()), 0) AS [Calls/Minute], qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], +qs.total_worker_time AS [TotalWorkerTime], qs.cached_time +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +WHERE qs.database_id = DB_ID() +ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find long-running cached stored procedures that +-- may be easy to optimize with standard query tuning techniques + + +-- Top Cached SPs By Avg Elapsed Time with execution time variability (Query 41) (SP Avg Elapsed Variable Time) +SELECT TOP(25) p.name AS [SP Name], qs.execution_count, qs.min_elapsed_time, +qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +qs.max_elapsed_time, qs.last_elapsed_time, qs.cached_time +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +WHERE qs.database_id = DB_ID() +ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); +------ + +-- This gives you some interesting information about the variability in the +-- execution time of your cached stored procedures, which is useful for tuning + + +-- Top Cached SPs By Total Worker time (SQL 2008). Worker time relates to CPU cost (Query 42) (SP Worker Time) +SELECT TOP(25) p.name AS [SP Name], qs.total_worker_time AS [TotalWorkerTime], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count +AS [avg_elapsed_time], qs.cached_time +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +WHERE qs.database_id = DB_ID() +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a CPU perspective +-- You should look at this if you see signs of CPU pressure + + +-- Top Cached SPs By Total Logical Reads (SQL 2008). Logical reads relate to memory pressure (Query 43) (SP Logical Reads) +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_reads AS [TotalLogicalReads], +qs.total_logical_reads/qs.execution_count AS [AvgLogicalReads],qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count +AS [avg_elapsed_time], qs.cached_time +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +WHERE qs.database_id = DB_ID() +ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a memory perspective +-- You should look at this if you see signs of memory pressure + + +-- Top Cached SPs By Total Physical Reads (SQL 2008). Physical reads relate to disk I/O pressure (Query 44) (SP Physical Reads) +SELECT TOP(25) p.name AS [SP Name],qs.total_physical_reads AS [TotalPhysicalReads], +qs.total_physical_reads/qs.execution_count AS [AvgPhysicalReads], qs.execution_count, +qs.total_logical_reads,qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count +AS [avg_elapsed_time], qs.cached_time +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +WHERE qs.database_id = DB_ID() +AND qs.total_physical_reads > 0 +ORDER BY qs.total_physical_reads DESC, qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a read I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + +-- Top Cached SPs By Total Logical Writes (SQL 2008) (Query 45) (SP Logical Writes) +-- Logical writes relate to both memory and disk I/O pressure +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_writes AS [TotalLogicalWrites], +qs.total_logical_writes/qs.execution_count AS [AvgLogicalWrites], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +qs.cached_time +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +WHERE qs.database_id = DB_ID() +AND qs.total_logical_writes > 0 +ORDER BY qs.total_logical_writes DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a write I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + +-- Lists the top statements by average input/output usage for the current database (Query 46) (Top IO Statements) +SELECT TOP(50) OBJECT_NAME(qt.objectid, dbid) AS [SP Name], +(qs.total_logical_reads + qs.total_logical_writes) /qs.execution_count AS [Avg IO], qs.execution_count AS [Execution Count], +SUBSTRING(qt.[text],qs.statement_start_offset/2, + (CASE + WHEN qs.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE qs.statement_end_offset + END - qs.statement_start_offset)/2) AS [Query Text] +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt +WHERE qt.[dbid] = DB_ID() +ORDER BY [Avg IO] DESC OPTION (RECOMPILE); +------ + +-- Helps you find the most expensive statements for I/O by SP + + + +-- Possible Bad NC Indexes (writes > reads) (Query 47) (Bad NC Indexes) +SELECT OBJECT_NAME(s.[object_id]) AS [Table Name], i.name AS [Index Name], i.index_id, +i.is_disabled, i.is_hypothetical, i.has_filter, i.fill_factor, +user_updates AS [Total Writes], user_seeks + user_scans + user_lookups AS [Total Reads], +user_updates - (user_seeks + user_scans + user_lookups) AS [Difference] +FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON s.[object_id] = i.[object_id] +AND i.index_id = s.index_id +WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 +AND s.database_id = DB_ID() +AND s.user_updates > (s.user_seeks + s.user_scans + s.user_lookups) +AND i.index_id > 1 AND i.[type_desc] = N'NONCLUSTERED' +AND i.is_primary_key = 0 AND i.is_unique_constraint = 0 +ORDER BY [Difference] DESC, [Total Writes] DESC, [Total Reads] ASC OPTION (RECOMPILE); +------ + +-- Look for indexes with high numbers of writes and zero or very low numbers of reads +-- Consider your complete workload, and how long your instance has been running +-- Investigate further before dropping an index! + + +-- Missing Indexes for current database by Index Advantage (Query 48) (Missing Indexes) +SELECT DISTINCT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact, +OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows] +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON p.[object_id] = mid.[object_id] +WHERE mid.database_id = DB_ID() +AND p.index_id < 2 +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Look at index advantage, last user seek time, number of user seeks to help determine source and importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + + +-- Find missing index warnings for cached plans in the current database (Query 49) (Missing Index Warnings) +-- Note: This query could take some time on a busy instance +SELECT TOP(25) OBJECT_NAME(objectid) AS [ObjectName], + query_plan, cp.objtype, cp.usecounts +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp +WHERE CAST(query_plan AS NVARCHAR(MAX)) LIKE N'%MissingIndex%' +AND dbid = DB_ID() +ORDER BY cp.usecounts DESC OPTION (RECOMPILE); +------ + +-- Helps you connect missing indexes to specific stored procedures +-- This can help you decide whether to add them or not + + +-- Breaks down buffers used by current database by object (table, index) in the buffer cache (Query 50) (Buffer Usage) +-- Note: This query could take some time on a busy instance +SELECT OBJECT_NAME(p.[object_id]) AS [Object Name], p.index_id, +CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], +COUNT(*) AS [BufferCount], p.Rows AS [Row Count], +p.data_compression_desc AS [Compression Type] +FROM sys.allocation_units AS a WITH (NOLOCK) +INNER JOIN sys.dm_os_buffer_descriptors AS b WITH (NOLOCK) +ON a.allocation_unit_id = b.allocation_unit_id +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON a.container_id = p.hobt_id +WHERE b.database_id = CONVERT(int,DB_ID()) +AND p.[object_id] > 100 +GROUP BY p.[object_id], p.index_id, p.data_compression_desc, p.[Rows] +ORDER BY [BufferCount] DESC OPTION (RECOMPILE); +------ + +-- Tells you what tables and indexes are using the most memory in the buffer cache +-- It can help identify possible candidates for data compression + + +-- Get Table names, row counts, and compression status for clustered index or heap (Query 51) (Table Sizes) +SELECT SCHEMA_NAME(o.Schema_ID) AS [Schema Name], OBJECT_NAME(p.object_id) AS [ObjectName], +SUM(p.Rows) AS [RowCount], data_compression_desc AS [CompressionType] +FROM sys.partitions AS p WITH (NOLOCK) +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON p.object_id = o.object_id +WHERE index_id < 2 --ignore the partitions from the non-clustered index if any +AND OBJECT_NAME(p.object_id) NOT LIKE N'sys%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'spt_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'queue_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filestream_tombstone%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'fulltext%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'ifts_comp_fragment%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filetable_updates%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'xml_index_nodes%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'sqlagent_job%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'plan_persist%' +GROUP BY SCHEMA_NAME(o.Schema_ID), p.object_id, data_compression_desc +ORDER BY SUM(p.Rows) DESC OPTION (RECOMPILE); +------ + +-- Gives you an idea of table sizes, and possible data compression opportunities + + +-- Get some key table properties (Query 52) (Table Properties) +SELECT [name], create_date, lock_on_bulk_load, is_replicated, has_replication_filter, + is_tracked_by_cdc, lock_escalation_desc +FROM sys.tables WITH (NOLOCK) +ORDER BY [name] OPTION (RECOMPILE); +------ + +-- Gives you some good information about your tables + + +-- Detect blocking (run multiple times) (Query 53) (Detect Blocking) +SELECT t1.resource_type AS [lock type], DB_NAME(resource_database_id) AS [database], +t1.resource_associated_entity_id AS [blk object],t1.request_mode AS [lock req], --- lock requested +t1.request_session_id AS [waiter sid], t2.wait_duration_ms AS [wait time], -- spid of waiter +(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK) -- get sql for waiter +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) +WHERE r.session_id = t1.request_session_id) AS [waiter_batch], +(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, + (CASE WHEN r.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE r.statement_end_offset END - r.statement_start_offset)/2) +FROM sys.dm_exec_requests AS r WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt +WHERE r.session_id = t1.request_session_id) AS [waiter_stmt], -- statement blocked +t2.blocking_session_id AS [blocker sid], -- spid of blocker +(SELECT [text] FROM sys.sysprocesses AS p -- get sql for blocker +CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) +WHERE p.spid = t2.blocking_session_id) AS [blocker_stmt] +FROM sys.dm_tran_locks AS t1 WITH (NOLOCK) +INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK) +ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE); +------ + +-- Helps troubleshoot blocking and deadlocking issues +-- The results will change from second to second on a busy system +-- You should run this query multiple times when you see signs of blocking + + + +-- When were Statistics last updated on all indexes? (Query 54) (Statistics Update) +SELECT SCHEMA_NAME(o.Schema_ID) + N'.' + o.NAME AS [Object Name], o.type_desc AS [Object Type], + i.name AS [Index Name], STATS_DATE(i.[object_id], i.index_id) AS [Statistics Date], + s.auto_created, s.no_recompute, s.user_created, st.row_count, st.used_page_count +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON o.[object_id] = i.[object_id] +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.stats_id +INNER JOIN sys.dm_db_partition_stats AS st WITH (NOLOCK) +ON o.[object_id] = st.[object_id] +AND i.[index_id] = st.[index_id] +WHERE o.[type] IN ('U', 'V') +AND st.row_count > 0 +ORDER BY STATS_DATE(i.[object_id], i.index_id) DESC OPTION (RECOMPILE); +------ + +-- Helps discover possible problems with out-of-date statistics +-- Also gives you an idea which indexes are the most active + + +-- Get fragmentation info for all indexes above a certain size in the current database (Query 55) (Index Fragmentation) +-- Note: This query could take some time on a very large database +SELECT DB_NAME(ps.database_id) AS [Database Name], OBJECT_NAME(ps.OBJECT_ID) AS [Object Name], +i.name AS [Index Name], ps.index_id, ps.index_type_desc, ps.avg_fragmentation_in_percent, +ps.fragment_count, ps.page_count, i.fill_factor, i.has_filter, i.filter_definition +FROM sys.dm_db_index_physical_stats(DB_ID(),NULL, NULL, NULL , N'LIMITED') AS ps +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ps.[object_id] = i.[object_id] +AND ps.index_id = i.index_id +WHERE ps.database_id = DB_ID() +AND ps.page_count > 2500 +ORDER BY ps.avg_fragmentation_in_percent DESC OPTION (RECOMPILE); +------ + +-- Helps determine whether you have framentation in your relational indexes +-- and how effective your index maintenance strategy is + + +--- Index Read/Write stats (all tables in current DB) ordered by Reads (Query 56) (Overall Index Usage - Reads) +SELECT OBJECT_NAME(s.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, + user_seeks + user_scans + user_lookups AS [Reads], s.user_updates AS [Writes], + i.type_desc AS [IndexType], i.fill_factor AS [FillFactor], i.has_filter, i.filter_definition, + s.last_user_scan, s.last_user_lookup, s.last_user_seek +FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON s.[object_id] = i.[object_id] +WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +ORDER BY user_seeks + user_scans + user_lookups DESC OPTION (RECOMPILE); -- Order by reads +------ + + +-- Show which indexes in the current database are most active for Reads + + +--- Index Read/Write stats (all tables in current DB) ordered by Writes (Query 57) (Overall Index Usage - Writes) +SELECT OBJECT_NAME(s.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, + s.user_updates AS [Writes], user_seeks + user_scans + user_lookups AS [Reads], + i.type_desc AS [IndexType], i.fill_factor AS [FillFactor], i.has_filter, i.filter_definition, + s.last_system_update, s.last_user_update +FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON s.[object_id] = i.[object_id] +WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +ORDER BY s.user_updates DESC OPTION (RECOMPILE); -- Order by writes +------ + +-- Show which indexes in the current database are most active for Writes + + +-- Get lock waits for current database (Query 58) (Lock Waits) +SELECT o.name AS [table_name], i.name AS [index_name], ios.index_id, ios.partition_number, + SUM(ios.row_lock_wait_count) AS [total_row_lock_waits], + SUM(ios.row_lock_wait_in_ms) AS [total_row_lock_wait_in_ms], + SUM(ios.page_lock_wait_count) AS [total_page_lock_waits], + SUM(ios.page_lock_wait_in_ms) AS [total_page_lock_wait_in_ms], + SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) AS [total_lock_wait_in_ms] +FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) AS ios +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON ios.[object_id] = o.[object_id] +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ios.[object_id] = i.[object_id] +AND ios.index_id = i.index_id +WHERE o.[object_id] > 100 +GROUP BY o.name, i.name, ios.index_id, ios.partition_number +HAVING SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) > 0 +ORDER BY total_lock_wait_in_ms DESC OPTION (RECOMPILE); +------ + +-- This query is helpful for troubleshooting blocking and deadlocking issues + + +-- Look at recent Full backups for the current database (Query 59) (Recent Full Backups) +SELECT TOP (30) bs.machine_name, bs.server_name, bs.database_name AS [Database Name], bs.recovery_model, +CONVERT (BIGINT, bs.backup_size / 1048576 ) AS [Uncompressed Backup Size (MB)], +CONVERT (BIGINT, bs.compressed_backup_size / 1048576 ) AS [Compressed Backup Size (MB)], +CONVERT (NUMERIC (20,2), (CONVERT (FLOAT, bs.backup_size) / +CONVERT (FLOAT, bs.compressed_backup_size))) AS [Compression Ratio], bs.has_backup_checksums, bs.is_copy_only, +DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) AS [Backup Elapsed Time (sec)], +bs.backup_finish_date AS [Backup Finish Date], bmf.physical_device_name AS [Backup Location], bmf.physical_block_size +FROM msdb.dbo.backupset AS bs WITH (NOLOCK) +INNER JOIN msdb.dbo.backupmediafamily AS bmf WITH (NOLOCK) +ON bs.media_set_id = bmf.media_set_id +WHERE DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) > 0 +AND bs.backup_size > 0 +AND bs.type = 'D' -- Change to L if you want Log backups +AND database_name = DB_NAME(DB_ID()) +ORDER BY bs.backup_finish_date DESC OPTION (RECOMPILE); +------ + +-- Are your backup sizes and times changing over time? +-- Are you using backup compression? +-- Are you using backup checksums? +-- Are you doing copy_only backups? +-- Have you done any backup tuning with striped backups, or changing the parameters of the backup command? + + +-- These five Pluralsight Courses go into more detail about how to run these queries and interpret the results + +-- SQL Server 2017: Diagnosing Performance Issues with DMVs +-- https://bit.ly/2FqCeti + +-- SQL Server 2017: Diagnosing Configuration Issues with DMVs +-- https://bit.ly/2MSUDUL + +-- SQL Server 2014 DMV Diagnostic Queries Part 1 +-- https://bit.ly/2plxCer + +-- SQL Server 2014 DMV Diagnostic Queries Part 2 +-- https://bit.ly/2IuJpzI + +-- SQL Server 2014 DMV Diagnostic Queries Part 3 +-- https://bit.ly/2FIlCPb + + + +-- Sign up for Microsoft Visual Studio Dev Essentials and get a free three month pass to Pluralsight + +-- Microsoft Visual Studio Dev Essentials +-- http://bit.ly/1q6xbDL + + +-- Sign up for Microsoft Azure Essentials and get lots of free Azure usage credits, MCP exam voucher, three month Pluralsight subscription + +-- Microsoft Azure Essentials +-- https://bit.ly/2JMWe8x + + +-- August 2017 blog series about upgrading and migrating SQL Server +-- https://bit.ly/2ftKVrX diff --git a/Scripts/SQL Server 2008 R2 Diagnostic Information Queries.sql b/Scripts/SQL Server 2008 R2 Diagnostic Information Queries.sql index ecb7cfb8..f0ea3e36 100644 --- a/Scripts/SQL Server 2008 R2 Diagnostic Information Queries.sql +++ b/Scripts/SQL Server 2008 R2 Diagnostic Information Queries.sql @@ -1,1273 +1,1406 @@ - --- SQL Server 2008 R2 Diagnostic Information Queries --- Glenn Berry --- CY 2016 --- Last Modified: April 23, 2015 --- http://sqlserverperformance.wordpress.com/ --- http://sqlskills.com/blogs/glenn/ --- Twitter: GlennAlanBerry - --- Please listen to my Pluralsight courses --- http://www.pluralsight.com/author/glenn-berry - --- Many of these queries will not work if you have databases in 80 compatibility mode --- Please make sure you are using the correct version of these diagnostic queries for your version of SQL Server - ---****************************************************************************** ---* Copyright (C) 2016 Glenn Berry, SQLskills.com ---* All rights reserved. ---* ---* For more scripts and sample code, check out ---* http://sqlskills.com/blogs/glenn ---* ---* You may alter this code for your own *non-commercial* purposes. You may ---* republish altered code as long as you include this copyright and give due credit. ---* ---* ---* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ---* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED ---* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A ---* PARTICULAR PURPOSE. ---* ---****************************************************************************** - --- Note: A number of these queries will only work on SQL Server 2008 R2 SP1 or later --- They are all noted in the instructions - --- Check the major product version to see if it is SQL Server 2008 R2 -IF NOT EXISTS (SELECT * WHERE CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')) LIKE '10.5%') - BEGIN - DECLARE @ProductVersion varchar(128) = CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')); - RAISERROR ('Script does not match the ProductVersion [%s] of this instance. Many of these queries may not work on this version.' , 18 , 16 , @ProductVersion); - END - ELSE - PRINT N'You have the correct major version of SQL Server for this diagnostic information script'; - - --- Instance level queries ******************************* - --- SQL and OS Version information for current instance (Query 1) (Version Info) -SELECT SERVERPROPERTY ('MachineName') AS [Server Name], @@VERSION AS [SQL Server and OS Version Info]; - - --- SQL Server 2008 R2 Builds SQL Server 2008 R2 SP1 Builds SQL Server 2008 R2 SP2 Builds SQL Server 2008 R2 SP3 Builds --- Build Description Build Description Build Description Build Description --- 10.50.1092 August 2009 CTP2 --- 10.50.1352 November 2009 CTP3 --- 10.50.1450 Release Candidate --- 10.50.1600 RTM --- 10.50.1702 RTM CU1 --- 10.50.1720 RTM CU2 --- 10.50.1734 RTM CU3 --- 10.50.1746 RTM CU4 --- 10.50.1753 RTM CU5 --- 10.50.1765 RTM CU6 ---> 10.50.2500 SP1 RTM --- 10.50.1777 RTM CU7 --- 10.50.1797 RTM CU8 ---> 10.50.2769 SP1 CU1 --- 10.50.1804 RTM CU9 ---> 10.50.2772 SP1 CU2 --- 10.50.1807 RTM CU10 ---> 10.50.2789 SP1 CU3 --- 10.50.1809 RTM CU11 ---> 10.50.2796 SP1 CU4 --- 10.50.1810 RTM CU12 ---> 10.50.2806 SP1 CU5 ---> 10.50.4000 SP2 RTM --- 10.50.1815 RTM CU13 ---> 10.50.2811 SP1 CU6 --- 10.50.1817 RTM CU14 ---> 10.50.2817 SP1 CU7 ---> 10.50.4260 SP2 CU1 7/24/2012 --- RTM Branch Retired ---> 10.50.2822 SP1 CU8 ---> 10.50.4263 SP2 CU2 8/31/2012 --- 10.50.2866 SP1 CU9 ---> 10.50.4266 SP2 CU3 10/15/2012 --- 10.50.2868 SP1 CU10 ---> 10.50.4270 SP2 CU4 12/17/2012 --- 10.50.2869 SP1 CU11 ---> 10.50.4276 SP2 CU5 2/18/2013 --- 10.50.2874 SP1 CU12 ---> 10.50.4279 SP2 CU6 4/15/2013 --- 10.50.2876 SP1 CU13 ---> 10.50.4286 SP2 CU7 6/17/2013 --- 10.50.2881 SP1 CU14 ---> 10.50.4290 SP2 CU8 8/22/2013 --- 10.50.4295 SP2 CU9 10/28/2013 --- 10.50.4297 SP2 CU10 12/16/2013 --- 10.50.4302 SP2 CU11 2/17/2014 --- 10.50.4305 SP2 CU12 4/21/2014 --- 10.50.4319 SP2 CU13 6/30/2014 --- 10.50.6000 SP3 RTM 9/26/2014 --- 10.50.6525 SP3 + HF 2/9/2015 --- http://support.microsoft.com/kb/3033860 --- Any build older than 10.50.4000 is on an "unsupported service pack" --- SQL Server 2008 R2 SP3 RTM (Build 10.50.6000) is the final public build of SQL Server 2008 R2, barring any later security fixes. - - - --- SQL Server 2008 R2 RTM was considered an "unsupported service pack" as of July 12, 2012 --- SQL Server 2008 R2 SP1 was considered an "unsupported service pack" as of August 8, 2013 - --- The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 was released --- http://support.microsoft.com/kb/981356 - --- The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 Service Pack 1 was released --- http://support.microsoft.com/kb/2567616 - --- Microsoft released SQL Server 2008 R2 SP1 CU14 on 8/8/2013, then pulled it the next day, "since SP1 is ending mainstream support" - --- The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 Service Pack 2 was released --- http://support.microsoft.com/kb/2730301 - --- SQL Server 2008 R2 SP2 CU13 is the final cumulative update for SQL Server 2008 R2 - --- SQL Server 2008 R2 SP3 Release information --- http://support2.microsoft.com/kb/2979597 - --- When was SQL Server installed (Query 2) (SQL Server Install Date) -SELECT @@SERVERNAME AS [Server Name], create_date AS [SQL Server Install Date] -FROM sys.server_principals WITH (NOLOCK) -WHERE name = N'NT AUTHORITY\SYSTEM' -OR name = N'NT AUTHORITY\NETWORK SERVICE' OPTION (RECOMPILE); - --- Tells you the date and time that SQL Server was installed --- It is a good idea to know how old your instance is - - --- Get selected server properties (SQL Server 2008 R2) (Query 3) (Server Properties) -SELECT SERVERPROPERTY('MachineName') AS [MachineName], SERVERPROPERTY('ServerName') AS [ServerName], -SERVERPROPERTY('InstanceName') AS [Instance], SERVERPROPERTY('IsClustered') AS [IsClustered], -SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS [ComputerNamePhysicalNetBIOS], -SERVERPROPERTY('Edition') AS [Edition], SERVERPROPERTY('ProductLevel') AS [ProductLevel], -SERVERPROPERTY('ProductVersion') AS [ProductVersion], SERVERPROPERTY('ProcessID') AS [ProcessID], -SERVERPROPERTY('Collation') AS [Collation], SERVERPROPERTY('IsFullTextInstalled') AS [IsFullTextInstalled], -SERVERPROPERTY('IsIntegratedSecurityOnly') AS [IsIntegratedSecurityOnly]; - --- This gives you a lot of useful information about your instance of SQL Server, --- such as the ProcessID for SQL Server and your collation - - --- Get SQL Server Agent jobs and Category information (Query 4) (SQL Server Agent Jobs) -SELECT sj.name AS [JobName], sj.[description] AS [JobDescription], SUSER_SNAME(sj.owner_sid) AS [JobOwner], -sj.date_created, sj.[enabled], sj.notify_email_operator_id, sj.notify_level_email, sc.name AS [CategoryName], -js.next_run_date, js.next_run_time -FROM msdb.dbo.sysjobs AS sj WITH (NOLOCK) -INNER JOIN msdb.dbo.syscategories AS sc WITH (NOLOCK) -ON sj.category_id = sc.category_id -LEFT OUTER JOIN msdb.dbo.sysjobschedules AS js WITH (NOLOCK) -ON sj.job_id = js.job_id -ORDER BY sj.name OPTION (RECOMPILE); - --- Gives you some basic information about your SQL Server Agent jobs, who owns them and how they are configured --- Look for Agent jobs that are not owned by sa --- Look for jobs that have a notify_email_operator_id set to 0 (meaning no operator) --- Look for jobs that have a notify_level_email set to 0 (meaning no e-mail is ever sent) --- --- MSDN sysjobs documentation --- http://msdn.microsoft.com/en-us/library/ms189817.aspx - - --- Get SQL Server Agent Alert Information (Query 5) (SQL Server Agent Alerts) -SELECT name, event_source, message_id, severity, [enabled], has_notification, - delay_between_responses, occurrence_count, last_occurrence_date, last_occurrence_time -FROM msdb.dbo.sysalerts WITH (NOLOCK) -ORDER BY name OPTION (RECOMPILE); - --- Gives you some basic information about your SQL Server Agent Alerts (which are different from SQL Server Agent jobs) --- Read more about Agent Alerts here: http://www.sqlskills.com/blogs/glenn/creating-sql-server-agent-alerts-for-critical-errors/ - - --- Returns a list of all global trace flags that are enabled (Query 6) (Global Trace Flags) -DBCC TRACESTATUS (-1); - --- If no global trace flags are enabled, no results will be returned. --- It is very useful to know what global trace flags are currently enabled as part of the diagnostic process. - --- Common trace flags that should be enabled in most cases --- TF 3226 - Supresses logging of successful database backup messages to the SQL Server Error Log --- TF 1118 - Helps alleviate allocation contention in tempdb, SQL Server allocates full extents to each database object, --- thereby eliminating the contention on SGAM pages (more important with older versions of SQL Server) --- Recommendations to reduce allocation contention in SQL Server tempdb database --- http://support2.microsoft.com/kb/2154845 - - --- Windows information (SQL Server 2008 R2 SP1 or greater) (Query 7) (Windows Info) -SELECT windows_release, windows_service_pack_level, - windows_sku, os_language_version -FROM sys.dm_os_windows_info WITH (NOLOCK) OPTION (RECOMPILE); - --- Gives you major OS version, Service Pack, Edition, and language info for the operating system --- 6.3 is either Windows 8.1 or Windows Server 2012 R2 --- 6.2 is either Windows 8 or Windows Server 2012 --- 6.1 is either Windows 7 or Windows Server 2008 R2 --- 6.0 is either Windows Vista or Windows Server 2008 --- 5.2 is either Windows XP or Windows Server 2003 - --- Windows SKU codes --- 4 is Enterprise Edition --- 7 is Standard Server Edition --- 8 is Datacenter Server Edition --- 10 is Enterprise Server Edition --- 48 is Professional Edition - --- 1033 for os_language_version is US-English - --- Hardware and Software Requirements for Installing SQL Server 2008 R2 --- http://msdn.microsoft.com/en-us/library/ms143506(v=sql.105).aspx - --- Using SQL Server in Windows 8, Windows 8.1, Windows Server 2012 and Windows Server 2012 R2 environments --- http://support.microsoft.com/kb/2681562 - - --- SQL Server Services information (SQL Server 2008 R2 SP1 or greater) (Query 8) (SQL Server Services Info) -SELECT servicename, process_id, startup_type_desc, status_desc, -last_startup_time, service_account, is_clustered, cluster_nodename, [filename] -FROM sys.dm_server_services WITH (NOLOCK) OPTION (RECOMPILE); - --- Tells you the account being used for the SQL Server Service and the SQL Agent Service --- Shows the processid, when they were last started, and their current status --- Shows whether you are running on a failover cluster instance - - --- SQL Server NUMA Node information (Query 9) (SQL Server NUMA Info) -SELECT node_id, node_state_desc, memory_node_id, processor_group, online_scheduler_count, - active_worker_count, avg_load_balance, resource_monitor_state -FROM sys.dm_os_nodes WITH (NOLOCK) -WHERE node_state_desc <> N'ONLINE DAC' OPTION (RECOMPILE); - --- Gives you some useful information about the composition --- and relative load on your NUMA nodes - - --- Hardware information from SQL Server 2008 R2 (Query 10) (Hardware Info) --- (Cannot distinguish between HT and multi-core) -SELECT cpu_count AS [Logical CPU Count], hyperthread_ratio AS [Hyperthread Ratio], -cpu_count/hyperthread_ratio AS [Physical CPU Count], -physical_memory_in_bytes/1048576 AS [Physical Memory (MB)], -sqlserver_start_time, affinity_type_desc -FROM sys.dm_os_sys_info WITH (NOLOCK) OPTION (RECOMPILE); - --- Gives you some good basic hardware information about your database server - - --- Get System Manufacturer and model number from (Query 11) (System Manufacturer) --- SQL Server Error log. This query might take a few seconds --- if you have not recycled your error log recently -EXEC sys.xp_readerrorlog 0, 1, N'Manufacturer'; - --- This can help you determine the capabilities --- and capacities of your database server - - --- Get processor description from Windows Registry (Query 12) (Processor Description) -EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\CentralProcessor\0', N'ProcessorNameString'; - --- Gives you the model number and rated clock speed of your processor(s) --- Your processors may be running at less that the rated clock speed due --- to the Windows Power Plan or hardware power management - - --- Get the current node name from your cluster nodes (Query 13) (Cluster Node Properties) --- (if your database server is in a failover cluster) -SELECT NodeName -FROM sys.dm_os_cluster_nodes WITH (NOLOCK) OPTION (RECOMPILE); - --- Knowing which node owns the cluster resources is critical --- Especially when you are installing Windows or SQL Server updates --- You will see no results if your instance is not clustered - - --- Get configuration values for instance (Query 14) (Configuration Values) -SELECT name, value, value_in_use, minimum, maximum, [description], is_dynamic, is_advanced -FROM sys.configurations WITH (NOLOCK) -ORDER BY name OPTION (RECOMPILE); - --- Focus on these settings: --- backup compression default (should be 1 in most cases) --- clr enabled (only enable if it is needed) --- cost threshold for parallelism (depends on your workload) --- lightweight pooling (should be zero) --- max degree of parallelism (depends on your workload) --- max server memory (MB) (set to an appropriate value, not the default) --- optimize for ad hoc workloads (should be 1) --- priority boost (should be zero) --- remote admin connections (should be 1) - - - - --- Get information on location, time and size of any memory dumps from SQL Server (SQL Server 2008 R2 SP1 or greater) (Query 15) (Memory Dump Info) -SELECT [filename], creation_time, size_in_bytes/1048576.0 AS [Size (MB)] -FROM sys.dm_server_memory_dumps WITH (NOLOCK) -ORDER BY creation_time DESC OPTION (RECOMPILE); - --- This will not return any rows if you have --- not had any memory dumps (which is a good thing) - - --- File Names and Paths for TempDB and all user databases in instance (Query 16) (Database Filenames and Paths) -SELECT DB_NAME([database_id]) AS [Database Name], - [file_id], name, physical_name, type_desc, state_desc, - is_percent_growth, growth, - CONVERT(bigint, growth/128.0) AS [Growth in MB], - CONVERT(bigint, size/128.0) AS [Total Size in MB] -FROM sys.master_files WITH (NOLOCK) -WHERE [database_id] > 4 -AND [database_id] <> 32767 -OR [database_id] = 2 -ORDER BY DB_NAME([database_id]) OPTION (RECOMPILE); - --- Things to look at: --- Are data files and log files on different drives? --- Is everything on the C: drive? --- Is TempDB on dedicated drives? --- Is there only one TempDB data file? --- Are all of the TempDB data files the same size? --- Are there multiple data files for user databases? --- Is percent growth enabled for any files (which is bad)? - - --- Volume info for all LUNS that have database files on the current instance (SQL Server 2008 R2 SP1 or greater) (Query 17) (Volume Info) -SELECT DISTINCT vs.volume_mount_point, vs.file_system_type, -vs.logical_volume_name, CONVERT(DECIMAL(18,2),vs.total_bytes/1073741824.0) AS [Total Size (GB)], -CONVERT(DECIMAL(18,2),vs.available_bytes/1073741824.0) AS [Available Size (GB)], -CAST(CAST(vs.available_bytes AS FLOAT)/ CAST(vs.total_bytes AS FLOAT) AS DECIMAL(18,2)) * 100 AS [Space Free %] -FROM sys.master_files AS f WITH (NOLOCK) -CROSS APPLY sys.dm_os_volume_stats(f.database_id, f.[file_id]) AS vs OPTION (RECOMPILE); - ---Shows you the total and free space on the LUNs where you have database files - - --- Look for I/O requests taking longer than 15 seconds in the five most recent SQL Server Error Logs (Query 18) (IO Warnings) -CREATE TABLE #IOWarningResults(LogDate datetime, ProcessInfo sysname, LogText nvarchar(1000)); - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 0, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 1, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 2, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 3, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 4, 1, N'taking longer than 15 seconds'; - -SELECT LogDate, ProcessInfo, LogText -FROM #IOWarningResults -ORDER BY LogDate DESC; - -DROP TABLE #IOWarningResults; - --- Finding 15 second I/O warnings in the SQL Server Error Log is useful evidence of --- poor I/O performance (which might have many different causes) - - --- Drive level latency information (Query 19) (Drive Level Latency) --- Based on code from Jimmy May -SELECT tab.[Drive], tab.volume_mount_point AS [Volume Mount Point], - CASE - WHEN num_of_reads = 0 THEN 0 - ELSE (io_stall_read_ms/num_of_reads) - END AS [Read Latency], - CASE - WHEN num_of_writes = 0 THEN 0 - ELSE (io_stall_write_ms/num_of_writes) - END AS [Write Latency], - CASE - WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 - ELSE (io_stall/(num_of_reads + num_of_writes)) - END AS [Overall Latency], - CASE - WHEN num_of_reads = 0 THEN 0 - ELSE (num_of_bytes_read/num_of_reads) - END AS [Avg Bytes/Read], - CASE - WHEN num_of_writes = 0 THEN 0 - ELSE (num_of_bytes_written/num_of_writes) - END AS [Avg Bytes/Write], - CASE - WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 - ELSE ((num_of_bytes_read + num_of_bytes_written)/(num_of_reads + num_of_writes)) - END AS [Avg Bytes/Transfer] -FROM (SELECT LEFT(UPPER(mf.physical_name), 2) AS Drive, SUM(num_of_reads) AS num_of_reads, - SUM(io_stall_read_ms) AS io_stall_read_ms, SUM(num_of_writes) AS num_of_writes, - SUM(io_stall_write_ms) AS io_stall_write_ms, SUM(num_of_bytes_read) AS num_of_bytes_read, - SUM(num_of_bytes_written) AS num_of_bytes_written, SUM(io_stall) AS io_stall, vs.volume_mount_point - FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS vfs - INNER JOIN sys.master_files AS mf WITH (NOLOCK) - ON vfs.database_id = mf.database_id AND vfs.file_id = mf.file_id - CROSS APPLY sys.dm_os_volume_stats(mf.database_id, mf.[file_id]) AS vs - GROUP BY LEFT(UPPER(mf.physical_name), 2), vs.volume_mount_point) AS tab -ORDER BY [Overall Latency] OPTION (RECOMPILE); - --- Shows you the drive-level latency for reads and writes, in milliseconds --- Latency above 20-25ms is usually a problem - - --- Calculates average stalls per read, per write, and per total input/output for each database file (Query 20) (IO Stalls by File) -SELECT DB_NAME(fs.database_id) AS [Database Name], CAST(fs.io_stall_read_ms/(1.0 + fs.num_of_reads) AS NUMERIC(10,1)) AS [avg_read_stall_ms], -CAST(fs.io_stall_write_ms/(1.0 + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_write_stall_ms], -CAST((fs.io_stall_read_ms + fs.io_stall_write_ms)/(1.0 + fs.num_of_reads + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_io_stall_ms], -CONVERT(DECIMAL(18,2), mf.size/128.0) AS [File Size (MB)], mf.physical_name, mf.type_desc, fs.io_stall_read_ms, fs.num_of_reads, -fs.io_stall_write_ms, fs.num_of_writes, fs.io_stall_read_ms + fs.io_stall_write_ms AS [io_stalls], fs.num_of_reads + fs.num_of_writes AS [total_io] -FROM sys.dm_io_virtual_file_stats(null,null) AS fs -INNER JOIN sys.master_files AS mf WITH (NOLOCK) -ON fs.database_id = mf.database_id -AND fs.[file_id] = mf.[file_id] -ORDER BY avg_io_stall_ms DESC OPTION (RECOMPILE); - --- Helps determine which database files on the entire instance have the most I/O bottlenecks --- This can help you decide whether certain LUNs are overloaded and whether you might --- want to move some files to a different location or perhaps improve your I/O performance - - --- Recovery model, log reuse wait description, log file size, log usage size (Query 21) (Database Properties) --- and compatibility level for all databases on instance -SELECT db.[name] AS [Database Name], db.recovery_model_desc AS [Recovery Model], -db.log_reuse_wait_desc AS [Log Reuse Wait Description], -ls.cntr_value AS [Log Size (KB)], lu.cntr_value AS [Log Used (KB)], -CAST(CAST(lu.cntr_value AS FLOAT) / CAST(ls.cntr_value AS FLOAT)AS DECIMAL(18,2)) * 100 AS [Log Used %], -db.[compatibility_level] AS [DB Compatibility Level], -db.page_verify_option_desc AS [Page Verify Option], db.is_auto_create_stats_on, db.is_auto_update_stats_on, -db.is_auto_update_stats_async_on, db.is_parameterization_forced, -db.snapshot_isolation_state_desc, db.is_read_committed_snapshot_on, -db.is_auto_close_on, db.is_auto_shrink_on, db.is_cdc_enabled -FROM sys.databases AS db WITH (NOLOCK) -INNER JOIN sys.dm_os_performance_counters AS lu WITH (NOLOCK) -ON db.name = lu.instance_name -INNER JOIN sys.dm_os_performance_counters AS ls WITH (NOLOCK) -ON db.name = ls.instance_name -WHERE lu.counter_name LIKE N'Log File(s) Used Size (KB)%' -AND ls.counter_name LIKE N'Log File(s) Size (KB)%' -AND ls.cntr_value > 0 -ORDER BY db.[name] OPTION (RECOMPILE); - --- Things to look at: --- How many databases are on the instance? --- What recovery models are they using? --- What is the log reuse wait description? --- How full are the transaction logs ? --- What compatibility level are the databases on? --- What is the Page Verify Option? (should be CHECKSUM) --- Is Auto Update Statistics Asynchronously enabled? --- Make sure auto_shrink and auto_close are not enabled! - - - --- Missing Indexes for all databases by Index Advantage (Query 22) (Missing Indexes All Databases) -SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], -migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], -mid.equality_columns, mid.inequality_columns, mid.included_columns, -migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact -FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) -INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) -ON migs.group_handle = mig.index_group_handle -INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) -ON mig.index_handle = mid.index_handle -ORDER BY index_advantage DESC OPTION (RECOMPILE); - --- Getting missing index information for all of the databases on the instance is very useful --- Look at last user seek time, number of user seeks to help determine source and importance --- Also look at avg_user_impact and avg_total_user_cost to help determine importance --- SQL Server is overly eager to add included columns, so beware --- Do not just blindly add indexes that show up from this query!!! - - - --- Get VLF Counts for all databases on the instance (Query 23) (VLF Counts) --- (adapted from Michelle Ufford) -CREATE TABLE #VLFInfo (FileID int, - FileSize bigint, StartOffset bigint, - FSeqNo bigint, [Status] bigint, - Parity bigint, CreateLSN numeric(38)); - -CREATE TABLE #VLFCountResults(DatabaseName sysname, VLFCount int); - -EXEC sp_MSforeachdb N'Use [?]; - - INSERT INTO #VLFInfo - EXEC sp_executesql N''DBCC LOGINFO([?])''; - - INSERT INTO #VLFCountResults - SELECT DB_NAME(), COUNT(*) - FROM #VLFInfo; - - TRUNCATE TABLE #VLFInfo;' - -SELECT DatabaseName, VLFCount -FROM #VLFCountResults -ORDER BY VLFCount DESC; - -DROP TABLE #VLFInfo; -DROP TABLE #VLFCountResults; - --- High VLF counts can affect write performance --- and they can make full database restores and crash recovery take much longer --- Try to keep your VLF counts under 200 in most cases (depending on log file size) - - - - --- Get CPU utilization by database (Query 24) (CPU Usage by Database) -WITH DB_CPU_Stats -AS -(SELECT pa.DatabaseID, DB_Name(pa.DatabaseID) AS [Database Name], SUM(qs.total_worker_time/1000) AS [CPU_Time_Ms] - FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) - CROSS APPLY (SELECT CONVERT(int, value) AS [DatabaseID] - FROM sys.dm_exec_plan_attributes(qs.plan_handle) - WHERE attribute = N'dbid') AS pa - GROUP BY DatabaseID) -SELECT ROW_NUMBER() OVER(ORDER BY [CPU_Time_Ms] DESC) AS [CPU Rank], - [Database Name], [CPU_Time_Ms] AS [CPU Time (ms)], - CAST([CPU_Time_Ms] * 1.0 / SUM([CPU_Time_Ms]) OVER() * 100.0 AS DECIMAL(5, 2)) AS [CPU Percent] -FROM DB_CPU_Stats -WHERE DatabaseID <> 32767 -- ResourceDB -ORDER BY [CPU Rank] OPTION (RECOMPILE); - --- Helps determine which database is using the most CPU resources on the instance - - --- Get I/O utilization by database (Query 25) (IO Usage By Database) -WITH Aggregate_IO_Statistics -AS -(SELECT DB_NAME(database_id) AS [Database Name], -CAST(SUM(num_of_bytes_read + num_of_bytes_written)/1048576 AS DECIMAL(12, 2)) AS io_in_mb -FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS [DM_IO_STATS] -GROUP BY database_id) -SELECT ROW_NUMBER() OVER(ORDER BY io_in_mb DESC) AS [I/O Rank], [Database Name], io_in_mb AS [Total I/O (MB)], - CAST(io_in_mb/ SUM(io_in_mb) OVER() * 100.0 AS DECIMAL(5,2)) AS [I/O Percent] -FROM Aggregate_IO_Statistics -ORDER BY [I/O Rank] OPTION (RECOMPILE); - --- Helps determine which database is using the most I/O resources on the instance - - --- Get total buffer usage by database for current instance (Query 26) (Total Buffer Usage by Database) --- This make take some time to run on a busy instance -WITH AggregateBufferPoolUsage -AS -(SELECT DB_NAME(database_id) AS [Database Name], -CAST(COUNT(*) * 8/1024.0 AS DECIMAL (10,2)) AS [CachedSize] -FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) -WHERE database_id <> 32767 -- ResourceDB -GROUP BY DB_NAME(database_id)) -SELECT ROW_NUMBER() OVER(ORDER BY CachedSize DESC) AS [Buffer Pool Rank], [Database Name], CachedSize AS [Cached Size (MB)], - CAST(CachedSize / SUM(CachedSize) OVER() * 100.0 AS DECIMAL(5,2)) AS [Buffer Pool Percent] -FROM AggregateBufferPoolUsage -ORDER BY [Buffer Pool Rank] OPTION (RECOMPILE); - --- Tells you how much memory (in the buffer pool) --- is being used by each database on the instance - - --- Clear Wait Stats with this command --- DBCC SQLPERF('sys.dm_os_wait_stats', CLEAR); - --- Isolate top waits for server instance since last restart or wait statistics clear (Query 27) (Top Waits) -WITH [Waits] -AS (SELECT wait_type, wait_time_ms/ 1000.0 AS [WaitS], - (wait_time_ms - signal_wait_time_ms) / 1000.0 AS [ResourceS], - signal_wait_time_ms / 1000.0 AS [SignalS], - waiting_tasks_count AS [WaitCount], - 100.0 * wait_time_ms / SUM (wait_time_ms) OVER() AS [Percentage], - ROW_NUMBER() OVER(ORDER BY wait_time_ms DESC) AS [RowNum] - FROM sys.dm_os_wait_stats WITH (NOLOCK) - WHERE [wait_type] NOT IN ( - N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', - N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', - N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', - N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', - N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', - N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', - N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', - N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', - N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', - N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', - N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', - N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', - N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', - N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', - N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', - N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', - N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', - N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', - N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') - AND waiting_tasks_count > 0) -SELECT - MAX (W1.wait_type) AS [WaitType], - CAST (MAX (W1.WaitS) AS DECIMAL (16,2)) AS [Wait_Sec], - CAST (MAX (W1.ResourceS) AS DECIMAL (16,2)) AS [Resource_Sec], - CAST (MAX (W1.SignalS) AS DECIMAL (16,2)) AS [Signal_Sec], - MAX (W1.WaitCount) AS [Wait Count], - CAST (MAX (W1.Percentage) AS DECIMAL (5,2)) AS [Wait Percentage], - CAST ((MAX (W1.WaitS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgWait_Sec], - CAST ((MAX (W1.ResourceS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgRes_Sec], - CAST ((MAX (W1.SignalS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgSig_Sec] -FROM Waits AS W1 -INNER JOIN Waits AS W2 -ON W2.RowNum <= W1.RowNum -GROUP BY W1.RowNum -HAVING SUM (W2.Percentage) - MAX (W1.Percentage) < 99 -- percentage threshold -OPTION (RECOMPILE); - --- The SQL Server Wait Type Repository --- http://blogs.msdn.com/b/psssql/archive/2009/11/03/the-sql-server-wait-type-repository.aspx - --- Wait statistics, or please tell me where it hurts --- http://www.sqlskills.com/blogs/paul/wait-statistics-or-please-tell-me-where-it-hurts/ - --- SQL Server 2005 Performance Tuning using the Waits and Queues --- http://technet.microsoft.com/en-us/library/cc966413.aspx - --- sys.dm_os_wait_stats (Transact-SQL) --- http://msdn.microsoft.com/en-us/library/ms179984(v=sql.105).aspx - - - - --- Signal Waits for instance (Query 28) (Signal Waits) -SELECT CAST(100.0 * SUM(signal_wait_time_ms) / SUM (wait_time_ms) AS NUMERIC(20,2)) AS [% Signal (CPU) Waits], -CAST(100.0 * SUM(wait_time_ms - signal_wait_time_ms) / SUM (wait_time_ms) AS NUMERIC(20,2)) AS [% Resource Waits] -FROM sys.dm_os_wait_stats WITH (NOLOCK) -WHERE wait_type NOT IN ( - N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', - N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', - N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', - N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', - N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', - N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', - N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', - N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', - N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', - N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', - N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', - N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', - N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', - N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', - N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', - N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', - N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', - N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', - N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') OPTION (RECOMPILE); - --- Signal Waits above 10-15% is usually a confirming sign of CPU pressure --- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure --- Resource waits are non-CPU related waits - - - --- Get logins that are connected and how many sessions they have (Query 29) (Connection Counts) -SELECT login_name, [program_name], COUNT(session_id) AS [session_count] -FROM sys.dm_exec_sessions WITH (NOLOCK) -GROUP BY login_name, [program_name] -ORDER BY COUNT(session_id) DESC OPTION (RECOMPILE); - --- This can help characterize your workload and --- determine whether you are seeing a normal level of activity - - --- Get a count of SQL connections by IP address (Query 30) (Connection Counts by IP Address) -SELECT ec.client_net_address, es.[program_name], es.[host_name], es.login_name, -COUNT(ec.session_id) AS [connection count] -FROM sys.dm_exec_sessions AS es WITH (NOLOCK) -INNER JOIN sys.dm_exec_connections AS ec WITH (NOLOCK) -ON es.session_id = ec.session_id -GROUP BY ec.client_net_address, es.[program_name], es.[host_name], es.login_name -ORDER BY ec.client_net_address, es.[program_name] OPTION (RECOMPILE); - --- This helps you figure where your database load is coming from --- and verifies connectivity from other machines - - --- Get Average Task Counts (run multiple times) (Query 31) (Avg Task Counts) -SELECT AVG(current_tasks_count) AS [Avg Task Count], -AVG(runnable_tasks_count) AS [Avg Runnable Task Count], -AVG(pending_disk_io_count) AS [Avg Pending DiskIO Count] -FROM sys.dm_os_schedulers WITH (NOLOCK) -WHERE scheduler_id < 255 OPTION (RECOMPILE); - --- Sustained values above 10 suggest further investigation in that area --- High Avg Task Counts are often caused by blocking/deadlocking or other resource contention - --- Sustained values above 1 suggest further investigation in that area --- High Avg Runnable Task Counts are a good sign of CPU pressure --- High Avg Pending DiskIO Counts are a sign of disk pressure - - --- Get CPU Utilization History for last 256 minutes (in one minute intervals) (Query 32) (CPU Utilization History) --- This version works with SQL Server 2008 R2 -DECLARE @ts_now bigint = (SELECT cpu_ticks/(cpu_ticks/ms_ticks) FROM sys.dm_os_sys_info WITH (NOLOCK)); - -SELECT TOP(256) SQLProcessUtilization AS [SQL Server Process CPU Utilization], - SystemIdle AS [System Idle Process], - 100 - SystemIdle - SQLProcessUtilization AS [Other Process CPU Utilization], - DATEADD(ms, -1 * (@ts_now - [timestamp]), GETDATE()) AS [Event Time] -FROM ( - SELECT record.value('(./Record/@id)[1]', 'int') AS record_id, - record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') - AS [SystemIdle], - record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', - 'int') - AS [SQLProcessUtilization], [timestamp] - FROM ( - SELECT [timestamp], CONVERT(xml, record) AS [record] - FROM sys.dm_os_ring_buffers WITH (NOLOCK) - WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' - AND record LIKE N'%%') AS x - ) AS y -ORDER BY record_id DESC OPTION (RECOMPILE); - --- Look at the trend over the entire period. --- Also look at high sustained Other Process CPU Utilization values - - --- Get top total worker time queries for entire instance (Query 33) (Top Worker Time Queries) -SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], t.[text] AS [Query Text], -qs.total_worker_time AS [Total Worker Time], qs.min_worker_time AS [Min Worker Time], -qs.total_worker_time/qs.execution_count AS [Avg Worker Time], -qs.max_worker_time AS [Max Worker Time], qs.execution_count AS [Execution Count], -qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], -qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], -qs.total_physical_reads/qs.execution_count AS [Avg Physical Reads], qs.creation_time AS [Creation Time] -, qp.query_plan AS [Query Plan] -- comment out this column if copying results to Excel -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t -CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp -ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); - - --- Helps you find the most expensive queries from a CPU perspective across the entire instance - - - --- Good basic information about OS memory amounts and state (Query 34) (System Memory) -SELECT total_physical_memory_kb/1024 AS [Physical Memory (MB)], - available_physical_memory_kb/1024 AS [Available Memory (MB)], - total_page_file_kb/1024 AS [Total Page File (MB)], - available_page_file_kb/1024 AS [Available Page File (MB)], - system_cache_kb/1024 AS [System Cache (MB)], - system_memory_state_desc AS [System Memory State] -FROM sys.dm_os_sys_memory WITH (NOLOCK) OPTION (RECOMPILE); - --- You want to see "Available physical memory is high" --- This indicates that you are not under external memory pressure - - --- SQL Server Process Address space info (Query 35) (Process Memory) --- (shows whether locked pages is enabled, among other things) -SELECT physical_memory_in_use_kb/1024 AS [SQL Server Memory Usage (MB)], - large_page_allocations_kb, locked_page_allocations_kb, page_fault_count, - memory_utilization_percentage, available_commit_limit_kb, - process_physical_memory_low, process_virtual_memory_low -FROM sys.dm_os_process_memory WITH (NOLOCK) OPTION (RECOMPILE); - --- You want to see 0 for process_physical_memory_low --- You want to see 0 for process_virtual_memory_low --- This indicates that you are not under internal memory pressure - - --- Page Life Expectancy (PLE) value for each NUMA node in current instance (Query 36) (PLE by NUMA Node) -SELECT @@SERVERNAME AS [Server Name], [object_name], instance_name, cntr_value AS [Page Life Expectancy] -FROM sys.dm_os_performance_counters WITH (NOLOCK) -WHERE [object_name] LIKE N'%Buffer Node%' -- Handles named instances -AND counter_name = N'Page life expectancy' OPTION (RECOMPILE); - --- PLE is a good measurement of memory pressure. --- Higher PLE is better. Watch the trend over time, not the absolute value. --- This will only return one row for non-NUMA systems. - - --- Memory Grants Pending value for current instance (Query 37) (Memory Grants Pending) -SELECT @@SERVERNAME AS [Server Name], [object_name], cntr_value AS [Memory Grants Pending] -FROM sys.dm_os_performance_counters WITH (NOLOCK) -WHERE [object_name] LIKE N'%Memory Manager%' -- Handles named instances -AND counter_name = N'Memory Grants Pending' OPTION (RECOMPILE); - --- Memory Grants Pending above zero for a sustained period is a very strong indicator of memory pressure - - --- Memory Clerk Usage for instance (Query 38) (Memory Clerk Usage) --- Look for high value for CACHESTORE_SQLCP (Ad-hoc query plans) -SELECT TOP(10) [type] AS [Memory Clerk Type], SUM(single_pages_kb)/1024 AS [SPA Memory Usage (MB)] -FROM sys.dm_os_memory_clerks WITH (NOLOCK) -GROUP BY [type] -ORDER BY SUM(single_pages_kb) DESC OPTION (RECOMPILE); - --- CACHESTORE_SQLCP SQL Plans --- These are cached SQL statements or batches that aren't in stored procedures, functions and triggers --- Watch out for high values for CACHESTORE_SQLCP - --- CACHESTORE_OBJCP Object Plans --- These are compiled plans for stored procedures, functions and triggers - - --- Memory Object Usage for instance (Query 39) (Memory Object Usage) -SELECT TOP(20) mo.[type] AS [Memory Object Type], -COUNT(*) AS [Memory Object Count], -CAST((SUM (mo.page_size_in_bytes) / 1048576.0) AS DECIMAL (15,2)) AS [Memory Usage (MB)], -mc.[type] AS [Memory Clerk Type] -FROM sys.dm_os_memory_objects AS mo WITH (NOLOCK) -INNER JOIN sys.dm_os_memory_clerks AS mc WITH (NOLOCK) -ON mo.page_allocator_address = mc.page_allocator_address -GROUP BY mc.type, mo.[type] -ORDER BY [Memory Usage (MB)] DESC OPTION (RECOMPILE); - --- This query gives you more insight about your memory usage by object - - --- Find single-use, ad-hoc and prepared queries that are bloating the plan cache (Query 40) (Ad hoc Queries) -SELECT TOP(50) [text] AS [QueryText], cp.cacheobjtype, cp.objtype, cp.size_in_bytes/1024 AS [Plan Size in KB] -FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) -WHERE cp.cacheobjtype = N'Compiled Plan' -AND cp.objtype IN (N'Adhoc', N'Prepared') -AND cp.usecounts = 1 -ORDER BY cp.size_in_bytes DESC OPTION (RECOMPILE); - --- Gives you the text, type and size of single-use ad-hoc and prepared queries that waste space in the plan cache --- Enabling 'optimize for ad hoc workloads' for the instance can help (SQL Server 2008 and above only) --- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this. --- Enabling forced parameterization for the database can help, but test first! - - --- Database specific queries ***************************************************************** - --- **** Switch to a user database ***** -USE YourDatabaseName; -GO - --- Individual File Sizes and space available for current database (Query 41) (File Sizes and Space) -SELECT f.name AS [File Name] , f.physical_name AS [Physical Name], -CAST((f.size/128.0) AS DECIMAL(15,2)) AS [Total Size in MB], -CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) -AS [Available Space In MB], [file_id], fg.name AS [Filegroup Name] -FROM sys.database_files AS f WITH (NOLOCK) -LEFT OUTER JOIN sys.data_spaces AS fg WITH (NOLOCK) -ON f.data_space_id = fg.data_space_id OPTION (RECOMPILE); - --- Look at how large and how full the files are and where they are located --- Make sure the transaction log is not full!! - - - --- I/O Statistics by file for the current database (Query 42) (IO Stats By File) -SELECT DB_NAME(DB_ID()) AS [Database Name], df.name AS [Logical Name], vfs.[file_id], -df.physical_name AS [Physical Name], vfs.num_of_reads, vfs.num_of_writes, vfs.io_stall_read_ms, vfs.io_stall_write_ms, -CAST(100. * vfs.io_stall_read_ms/(vfs.io_stall_read_ms + vfs.io_stall_write_ms) AS DECIMAL(10,1)) AS [IO Stall Reads Pct], -CAST(100. * vfs.io_stall_write_ms/(vfs.io_stall_write_ms + vfs.io_stall_read_ms) AS DECIMAL(10,1)) AS [IO Stall Writes Pct], -(vfs.num_of_reads + vfs.num_of_writes) AS [Writes + Reads], -CAST(vfs.num_of_bytes_read/1048576.0 AS DECIMAL(10, 2)) AS [MB Read], -CAST(vfs.num_of_bytes_written/1048576.0 AS DECIMAL(10, 2)) AS [MB Written], -CAST(100. * vfs.num_of_reads/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Reads Pct], -CAST(100. * vfs.num_of_writes/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Write Pct], -CAST(100. * vfs.num_of_bytes_read/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Read Bytes Pct], -CAST(100. * vfs.num_of_bytes_written/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Written Bytes Pct] -FROM sys.dm_io_virtual_file_stats(DB_ID(), NULL) AS vfs -INNER JOIN sys.database_files AS df WITH (NOLOCK) -ON vfs.[file_id]= df.[file_id] OPTION (RECOMPILE); - --- This helps you characterize your workload better from an I/O perspective for this database --- It helps you determine whether you has an OLTP or DW/DSS type of workload - - - --- Top cached queries by Execution Count (SQL Server 2008 R2) (Query 43) (Query Execution Counts) --- SQL Server 2008 R2 SP1 and greater only -SELECT TOP (100) qs.execution_count, qs.total_rows, qs.last_rows, qs.min_rows, qs.max_rows, -qs.last_elapsed_time, qs.min_elapsed_time, qs.max_elapsed_time, -total_worker_time, total_logical_reads, -SUBSTRING(qt.TEXT,qs.statement_start_offset/2 +1, -(CASE WHEN qs.statement_end_offset = -1 - THEN LEN(CONVERT(NVARCHAR(MAX), qt.TEXT)) * 2 - ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) AS query_text -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt -ORDER BY qs.execution_count DESC OPTION (RECOMPILE); - --- Uses several new rows returned columns to help troubleshoot performance problems - - --- Top Cached SPs By Execution Count (SQL 2008 R2) (Query 44) (SP Execution Counts) -SELECT TOP(100) p.name AS [SP Name], qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.total_worker_time AS [TotalWorkerTime], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY qs.execution_count DESC OPTION (RECOMPILE); - --- Tells you which cached stored procedures are called the most often --- This helps you characterize and baseline your workload - - --- Top Cached SPs By Avg Elapsed Time (SQL 2008 R2) (Query 45) (SP Avg Elapsed Time) -SELECT TOP(25) p.name AS [SP Name], qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.total_elapsed_time, qs.execution_count, ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, -GETDATE()), 0) AS [Calls/Minute], qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], -qs.total_worker_time AS [TotalWorkerTime], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); - --- This helps you find long-running cached stored procedures that --- may be easy to optimize with standard query tuning techniques - - --- Top Cached SPs By Avg Elapsed Time with execution time variability (Query 46) (SP Avg Elapsed Variable Time) -SELECT TOP(25) p.name AS [SP Name], qs.execution_count, qs.min_elapsed_time, -qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.max_elapsed_time, qs.last_elapsed_time, qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); - --- This gives you some interesting information about the variability in the --- execution time of your cached stored procedures, which is useful for tuning - - --- Top Cached SPs By Total Worker time (SQL 2008 R2). Worker time relates to CPU cost (Query 47) (SP Worker Time) -SELECT TOP(25) p.name AS [SP Name], qs.total_worker_time AS [TotalWorkerTime], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count -AS [avg_elapsed_time], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a CPU perspective --- You should look at this if you see signs of CPU pressure - - --- Top Cached SPs By Total Logical Reads (SQL 2008 R2). Logical reads relate to memory pressure (Query 48) (SP Logical Reads) -SELECT TOP(25) p.name AS [SP Name], qs.total_logical_reads AS [TotalLogicalReads], -qs.total_logical_reads/qs.execution_count AS [AvgLogicalReads],qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count -AS [avg_elapsed_time], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a memory perspective --- You should look at this if you see signs of memory pressure - - --- Top Cached SPs By Total Physical Reads (SQL 2008 R2). Physical reads relate to disk I/O pressure (Query 49) (SP Physical Reads) -SELECT TOP(25) p.name AS [SP Name],qs.total_physical_reads AS [TotalPhysicalReads], -qs.total_physical_reads/qs.execution_count AS [AvgPhysicalReads], qs.execution_count, -qs.total_logical_reads,qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count -AS [avg_elapsed_time], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -AND qs.total_physical_reads > 0 -ORDER BY qs.total_physical_reads DESC, qs.total_logical_reads DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a read I/O perspective --- You should look at this if you see signs of I/O pressure or of memory pressure - --- Top Cached SPs By Total Logical Writes (SQL 2008 R2) (Query 50) (SP Logical Writes) --- Logical writes relate to both memory and disk I/O pressure -SELECT TOP(25) p.name AS [SP Name], qs.total_logical_writes AS [TotalLogicalWrites], -qs.total_logical_writes/qs.execution_count AS [AvgLogicalWrites], qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Second, qs.cached_time, GETDATE()), 0) AS [Calls/Second], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -AND qs.total_logical_writes > 0 -ORDER BY qs.total_logical_writes DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a write I/O perspective --- You should look at this if you see signs of I/O pressure or of memory pressure - - --- Lists the top statements by average input/output usage for the current database (Query 51) (Top IO Statements) -SELECT TOP(50) OBJECT_NAME(qt.objectid, dbid) AS [SP Name], -(qs.total_logical_reads + qs.total_logical_writes) /qs.execution_count AS [Avg IO], qs.execution_count AS [Execution Count], -SUBSTRING(qt.[text],qs.statement_start_offset/2, - (CASE - WHEN qs.statement_end_offset = -1 - THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 - ELSE qs.statement_end_offset - END - qs.statement_start_offset)/2) AS [Query Text] -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt -WHERE qt.[dbid] = DB_ID() -ORDER BY [Avg IO] DESC OPTION (RECOMPILE); - --- Helps you find the most expensive statements for I/O by SP - - - --- Possible Bad NC Indexes (writes > reads) (Query 52) (Bad NC Indexes) -SELECT OBJECT_NAME(s.[object_id]) AS [Table Name], i.name AS [Index Name], i.index_id, -i.is_disabled, i.is_hypothetical, i.has_filter, i.fill_factor, -user_updates AS [Total Writes], user_seeks + user_scans + user_lookups AS [Total Reads], -user_updates - (user_seeks + user_scans + user_lookups) AS [Difference] -FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON s.[object_id] = i.[object_id] -AND i.index_id = s.index_id -WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 -AND s.database_id = DB_ID() -AND user_updates > (user_seeks + user_scans + user_lookups) -AND i.index_id > 1 -ORDER BY [Difference] DESC, [Total Writes] DESC, [Total Reads] ASC OPTION (RECOMPILE); - --- Look for indexes with high numbers of writes and zero or very low numbers of reads --- Consider your complete workload, and how long your instance has been running --- Investigate further before dropping an index! - - --- Missing Indexes for current database by Index Advantage (Query 53) (Missing Indexes) -SELECT DISTINCT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], -migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], -mid.equality_columns, mid.inequality_columns, mid.included_columns, -migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact, -OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows] -FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) -INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) -ON migs.group_handle = mig.index_group_handle -INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) -ON mig.index_handle = mid.index_handle -INNER JOIN sys.partitions AS p WITH (NOLOCK) -ON p.[object_id] = mid.[object_id] -WHERE mid.database_id = DB_ID() -ORDER BY index_advantage DESC OPTION (RECOMPILE); - --- Look at index advantage, last user seek time, number of user seeks to help determine source and importance --- SQL Server is overly eager to add included columns, so beware --- Do not just blindly add indexes that show up from this query!!! - - --- Find missing index warnings for cached plans in the current database (Query 54) (Missing Index Warnings) --- Note: This query could take some time on a busy instance -SELECT TOP(25) OBJECT_NAME(objectid) AS [ObjectName], - query_plan, cp.objtype, cp.usecounts -FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) -CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp -WHERE CAST(query_plan AS NVARCHAR(MAX)) LIKE N'%MissingIndex%' -AND dbid = DB_ID() -ORDER BY cp.usecounts DESC OPTION (RECOMPILE); - --- Helps you connect missing indexes to specific stored procedures --- This can help you decide whether to add them or not - - --- Breaks down buffers used by current database by object (table, index) in the buffer cache (Query 55) (Buffer Usage) --- Note: This query could take some time on a busy instance -SELECT OBJECT_NAME(p.[object_id]) AS [Object Name], p.index_id, -CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], -COUNT(*) AS [BufferCount], p.Rows AS [Row Count], -p.data_compression_desc AS [Compression Type] -FROM sys.allocation_units AS a WITH (NOLOCK) -INNER JOIN sys.dm_os_buffer_descriptors AS b WITH (NOLOCK) -ON a.allocation_unit_id = b.allocation_unit_id -INNER JOIN sys.partitions AS p WITH (NOLOCK) -ON a.container_id = p.hobt_id -WHERE b.database_id = CONVERT(int,DB_ID()) -AND p.[object_id] > 100 -GROUP BY p.[object_id], p.index_id, p.data_compression_desc, p.[Rows] -ORDER BY [BufferCount] DESC OPTION (RECOMPILE); - --- Tells you what tables and indexes are using the most memory in the buffer cache --- It can help identify possible candidates for data compression - - --- Get Table names, row counts, and compression status for clustered index or heap (Query 56) (Table Sizes) -SELECT OBJECT_NAME(object_id) AS [ObjectName], -SUM(Rows) AS [RowCount], data_compression_desc AS [CompressionType] -FROM sys.partitions WITH (NOLOCK) -WHERE index_id < 2 --ignore the partitions from the non-clustered index if any -AND OBJECT_NAME(object_id) NOT LIKE N'sys%' -AND OBJECT_NAME(object_id) NOT LIKE N'queue_%' -AND OBJECT_NAME(object_id) NOT LIKE N'filestream_tombstone%' -AND OBJECT_NAME(object_id) NOT LIKE N'fulltext%' -AND OBJECT_NAME(object_id) NOT LIKE N'ifts_comp_fragment%' -AND OBJECT_NAME(object_id) NOT LIKE N'xml_index_nodes%' -GROUP BY object_id, data_compression_desc -ORDER BY SUM(Rows) DESC OPTION (RECOMPILE); - --- Gives you an idea of table sizes, and possible data compression opportunities - - - --- Get some key table properties (Query 57) (Table Properties) -SELECT [name], create_date, lock_on_bulk_load, is_replicated, has_replication_filter, - is_tracked_by_cdc, lock_escalation_desc -FROM sys.tables WITH (NOLOCK) -ORDER BY [name] OPTION (RECOMPILE); - --- Gives you some good information about your tables - - --- Detect blocking (run multiple times) (Query 58) (Detect Blocking) -SELECT t1.resource_type AS [lock type], DB_NAME(resource_database_id) AS [database], -t1.resource_associated_entity_id AS [blk object],t1.request_mode AS [lock req], --- lock requested -t1.request_session_id AS [waiter sid], t2.wait_duration_ms AS [wait time], -- spid of waiter -(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK) -- get sql for waiter -CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) -WHERE r.session_id = t1.request_session_id) AS [waiter_batch], -(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, - (CASE WHEN r.statement_end_offset = -1 - THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 - ELSE r.statement_end_offset END - r.statement_start_offset)/2) -FROM sys.dm_exec_requests AS r WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt -WHERE r.session_id = t1.request_session_id) AS [waiter_stmt], -- statement blocked -t2.blocking_session_id AS [blocker sid], -- spid of blocker -(SELECT [text] FROM sys.sysprocesses AS p -- get sql for blocker -CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) -WHERE p.spid = t2.blocking_session_id) AS [blocker_stmt] -FROM sys.dm_tran_locks AS t1 WITH (NOLOCK) -INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK) -ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE); - --- Helps troubleshoot blocking and deadlocking issues --- The results will change from second to second on a busy system --- You should run this query multiple times when you see signs of blocking - - - --- When were Statistics last updated on all indexes? (Query 59) (Statistics Update) -SELECT SCHEMA_NAME(o.Schema_ID) + N'.' + o.NAME AS [Object Name], o.type_desc AS [Object Type], - i.name AS [Index Name], STATS_DATE(i.[object_id], i.index_id) AS [Statistics Date], - s.auto_created, s.no_recompute, s.user_created, st.row_count, st.used_page_count -FROM sys.objects AS o WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON o.[object_id] = i.[object_id] -INNER JOIN sys.stats AS s WITH (NOLOCK) -ON i.[object_id] = s.[object_id] -AND i.index_id = s.stats_id -INNER JOIN sys.dm_db_partition_stats AS st WITH (NOLOCK) -ON o.[object_id] = st.[object_id] -AND i.[index_id] = st.[index_id] -WHERE o.[type] IN ('U', 'V') -AND st.row_count > 0 -ORDER BY STATS_DATE(i.[object_id], i.index_id) DESC OPTION (RECOMPILE); - --- Helps discover possible problems with out-of-date statistics --- Also gives you an idea which indexes are the most active - - --- Look at most frequently modified indexes and statistics (Query 60) (Volatile Indexes) --- Requires SQL Server 2008 R2 SP2 or newer -SELECT o.name AS [Object Name], o.[object_id], o.type_desc, s.name AS [Statistics Name], - s.stats_id, s.no_recompute, s.auto_created, - sp.modification_counter, sp.rows, sp.rows_sampled, sp.last_updated -FROM sys.objects AS o WITH (NOLOCK) -INNER JOIN sys.stats AS s WITH (NOLOCK) -ON s.object_id = o.object_id -CROSS APPLY sys.dm_db_stats_properties(s.object_id, s.stats_id) AS sp -WHERE o.type_desc NOT IN (N'SYSTEM_TABLE', N'INTERNAL_TABLE') -AND sp.modification_counter > 0 -ORDER BY sp.modification_counter DESC, o.name OPTION (RECOMPILE); - - --- Get fragmentation info for all indexes above a certain size in the current database (Query 61) (Index Fragmentation) --- Note: This query could take some time on a very large database -SELECT DB_NAME(ps.database_id) AS [Database Name], OBJECT_NAME(ps.OBJECT_ID) AS [Object Name], -i.name AS [Index Name], ps.index_id, ps.index_type_desc, ps.avg_fragmentation_in_percent, -ps.fragment_count, ps.page_count, i.fill_factor, i.has_filter, i.filter_definition -FROM sys.dm_db_index_physical_stats(DB_ID(),NULL, NULL, NULL , N'LIMITED') AS ps -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON ps.[object_id] = i.[object_id] -AND ps.index_id = i.index_id -WHERE ps.database_id = DB_ID() -AND ps.page_count > 2500 -ORDER BY ps.avg_fragmentation_in_percent DESC OPTION (RECOMPILE); - --- Helps determine whether you have framentation in your relational indexes --- and how effective your index maintenance strategy is - - ---- Index Read/Write stats (all tables in current DB) ordered by Reads (Query 62) (Overall Index Usage - Reads) -SELECT OBJECT_NAME(s.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, - user_seeks + user_scans + user_lookups AS [Reads], s.user_updates AS [Writes], - i.type_desc AS [IndexType], i.fill_factor AS [FillFactor], i.has_filter, i.filter_definition, - s.last_user_scan, s.last_user_lookup, s.last_user_seek -FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON s.[object_id] = i.[object_id] -WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 -AND i.index_id = s.index_id -AND s.database_id = DB_ID() -ORDER BY user_seeks + user_scans + user_lookups DESC OPTION (RECOMPILE); -- Order by reads - - --- Show which indexes in the current database are most active for Reads - - ---- Index Read/Write stats (all tables in current DB) ordered by Writes (Query 63) (Overall Index Usage - Writes) -SELECT OBJECT_NAME(s.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, - s.user_updates AS [Writes], user_seeks + user_scans + user_lookups AS [Reads], - i.type_desc AS [IndexType], i.fill_factor AS [FillFactor], i.has_filter, i.filter_definition, - s.last_system_update, s.last_user_update -FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON s.[object_id] = i.[object_id] -WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 -AND i.index_id = s.index_id -AND s.database_id = DB_ID() -ORDER BY s.user_updates DESC OPTION (RECOMPILE); -- Order by writes - --- Show which indexes in the current database are most active for Writes - - --- Get lock waits for current database (Query 64) (Lock Waits) -SELECT o.name AS [table_name], i.name AS [index_name], ios.index_id, ios.partition_number, - SUM(ios.row_lock_wait_count) AS [total_row_lock_waits], - SUM(ios.row_lock_wait_in_ms) AS [total_row_lock_wait_in_ms], - SUM(ios.page_lock_wait_count) AS [total_page_lock_waits], - SUM(ios.page_lock_wait_in_ms) AS [total_page_lock_wait_in_ms], - SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) AS [total_lock_wait_in_ms] -FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) AS ios -INNER JOIN sys.objects AS o WITH (NOLOCK) -ON ios.[object_id] = o.[object_id] -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON ios.[object_id] = i.[object_id] -AND ios.index_id = i.index_id -WHERE o.[object_id] > 100 -GROUP BY o.name, i.name, ios.index_id, ios.partition_number -HAVING SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) > 0 -ORDER BY total_lock_wait_in_ms DESC OPTION (RECOMPILE); - --- This query is helpful for troubleshooting blocking and deadlocking issues - - --- Look at recent Full backups for the current database (Query 65) (Recent Full Backups) -SELECT TOP (30) bs.machine_name, bs.server_name, bs.database_name AS [Database Name], bs.recovery_model, -CONVERT (BIGINT, bs.backup_size / 1048576 ) AS [Uncompressed Backup Size (MB)], -CONVERT (BIGINT, bs.compressed_backup_size / 1048576 ) AS [Compressed Backup Size (MB)], -CONVERT (NUMERIC (20,2), (CONVERT (FLOAT, bs.backup_size) / -CONVERT (FLOAT, bs.compressed_backup_size))) AS [Compression Ratio], -DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) AS [Backup Elapsed Time (sec)], -bs.backup_finish_date AS [Backup Finish Date] -FROM msdb.dbo.backupset AS bs WITH (NOLOCK) -WHERE DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) > 0 -AND bs.backup_size > 0 -AND bs.type = 'D' -- Change to L if you want Log backups -AND database_name = DB_NAME(DB_ID()) -ORDER BY bs.backup_finish_date DESC OPTION (RECOMPILE); - --- Are your backup sizes and times changing over time? --- Are you using backup compression? - - --- These three Pluralsight Courses go into more detail about how to run these queries and interpret the results - --- SQL Server 2014 DMV Diagnostic Queries Part 1 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part1 - --- SQL Server 2014 DMV Diagnostic Queries Part 2 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part2 - --- SQL Server 2014 DMV Diagnostic Queries Part 3 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part3 - - + +-- SQL Server 2008 R2 Diagnostic Information Queries +-- Glenn Berry +-- Last Modified: February 1, 2019 +-- https://www.sqlserverperformance.wordpress.com/ +-- https://www.sqlskills.com/blogs/glenn/ +-- Twitter: GlennAlanBerry + +-- Please listen to my Pluralsight courses +-- https://www.pluralsight.com/author/glenn-berry + +-- If you want to find all of our SQLskills SQL101 blog posts, check out https://www.sqlskills.com/help/sql101/ + +-- Many of these queries will not work if you have databases in 80 compatibility mode +-- Please make sure you are using the correct version of these diagnostic queries for your version of SQL Server + +--****************************************************************************** +--* Copyright (C) 2019 Glenn Berry, SQLskills.com +--* All rights reserved. +--* +--* For more scripts and sample code, check out +--* https://www.sqlskills.com/blogs/glenn +--* +--* You may alter this code for your own *non-commercial* purposes. You may +--* republish altered code as long as you include this copyright and give due credit. +--* +--* +--* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF +--* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED +--* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A +--* PARTICULAR PURPOSE. +--* +--****************************************************************************** + +-- Note: A number of these queries will only work on SQL Server 2008 R2 SP1 or later +-- They are all noted in the instructions + +-- Check the major product version to see if it is SQL Server 2008 R2 +IF NOT EXISTS (SELECT * WHERE CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')) LIKE '10.5%') + BEGIN + DECLARE @ProductVersion varchar(128) = CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')); + RAISERROR ('Script does not match the ProductVersion [%s] of this instance. Many of these queries may not work on this version.' , 18 , 16 , @ProductVersion); + END + ELSE + PRINT N'You have the correct major version of SQL Server for this diagnostic information script'; + + +-- Instance level queries ******************************* + +-- SQL and OS Version information for current instance (Query 1) (Version Info) +SELECT SERVERPROPERTY ('MachineName') AS [Server Name], @@VERSION AS [SQL Server and OS Version Info]; +------ + + +-- SQL Server 2008 R2 Builds SQL Server 2008 R2 SP1 Builds SQL Server 2008 R2 SP2 Builds SQL Server 2008 R2 SP3 Builds +-- Build Description Build Description Build Description Build Description +-- 10.50.1092 August 2009 CTP2 +-- 10.50.1352 November 2009 CTP3 +-- 10.50.1450 Release Candidate +-- 10.50.1600 RTM +-- 10.50.1702 RTM CU1 +-- 10.50.1720 RTM CU2 +-- 10.50.1734 RTM CU3 +-- 10.50.1746 RTM CU4 +-- 10.50.1753 RTM CU5 +-- 10.50.1765 RTM CU6 ---> 10.50.2500 SP1 RTM +-- 10.50.1777 RTM CU7 +-- 10.50.1797 RTM CU8 ---> 10.50.2769 SP1 CU1 +-- 10.50.1804 RTM CU9 ---> 10.50.2772 SP1 CU2 +-- 10.50.1807 RTM CU10 ---> 10.50.2789 SP1 CU3 +-- 10.50.1809 RTM CU11 ---> 10.50.2796 SP1 CU4 +-- 10.50.1810 RTM CU12 ---> 10.50.2806 SP1 CU5 ---> 10.50.4000 SP2 RTM +-- 10.50.1815 RTM CU13 ---> 10.50.2811 SP1 CU6 +-- 10.50.1817 RTM CU14 ---> 10.50.2817 SP1 CU7 ---> 10.50.4260 SP2 CU1 7/24/2012 +-- RTM Branch Retired ---> 10.50.2822 SP1 CU8 ---> 10.50.4263 SP2 CU2 8/31/2012 +-- 10.50.2866 SP1 CU9 ---> 10.50.4266 SP2 CU3 10/15/2012 +-- 10.50.2868 SP1 CU10 ---> 10.50.4270 SP2 CU4 12/17/2012 +-- 10.50.2869 SP1 CU11 ---> 10.50.4276 SP2 CU5 2/18/2013 +-- 10.50.2874 SP1 CU12 ---> 10.50.4279 SP2 CU6 4/15/2013 +-- 10.50.2876 SP1 CU13 ---> 10.50.4286 SP2 CU7 6/17/2013 +-- 10.50.2881 SP1 CU14 ---> 10.50.4290 SP2 CU8 8/22/2013 +-- 10.50.4295 SP2 CU9 10/28/2013 +-- 10.50.4297 SP2 CU10 12/16/2013 +-- 10.50.4302 SP2 CU11 2/17/2014 +-- 10.50.4305 SP2 CU12 4/21/2014 +-- 10.50.4319 SP2 CU13 6/30/2014 +-- 10.50.6000 SP3 RTM 9/26/2014 +-- 10.50.6525 SP3 + HF 2/9/2015 http://support.microsoft.com/kb/3033860 +-- Security Update for SQL Server 2008 R2 SP3 (KB4057113) https://www.microsoft.com/en-us/download/details.aspx?id=56415 10.50.6560 SP3 + HF 1/5/2018 Hot fix for Spectre/Meltdown + + +-- SQL Server 2008 R2 SP3 RTM plus an on-demand hotfix (Build 10.50.6525) is the final public build of SQL Server 2008 R2, barring any later security fixes. + +-- SQL Server 2008 R2 RTM was considered an "unsupported service pack" as of July 12, 2012 +-- SQL Server 2008 R2 SP1 was considered an "unsupported service pack" as of August 8, 2013 + +-- The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 was released +-- http://support.microsoft.com/kb/981356 + +-- The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 Service Pack 1 was released +-- http://support.microsoft.com/kb/2567616 + +-- The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 Service Pack 2 was released +-- http://support.microsoft.com/kb/2730301 + +-- SQL Server 2008 R2 SP2 CU13 is the final cumulative update for SQL Server 2008 R2 SP2 + +-- SQL Server 2008 R2 SP3 Release information +-- http://support2.microsoft.com/kb/2979597 + +-- Download SQL Server Management Studio (SSMS) +-- https://msdn.microsoft.com/en-us/library/mt238290.aspx + + + +-- When was SQL Server installed (Query 2) (SQL Server Install Date) +SELECT @@SERVERNAME AS [Server Name], create_date AS [SQL Server Install Date] +FROM sys.server_principals WITH (NOLOCK) +WHERE name = N'NT AUTHORITY\SYSTEM' +OR name = N'NT AUTHORITY\NETWORK SERVICE' OPTION (RECOMPILE); +------ + +-- Tells you the date and time that SQL Server was installed +-- It is a good idea to know how old your instance is + + +-- Get selected server properties (Query 3) (Server Properties) +SELECT SERVERPROPERTY('MachineName') AS [MachineName], SERVERPROPERTY('ServerName') AS [ServerName], +SERVERPROPERTY('InstanceName') AS [Instance], SERVERPROPERTY('IsClustered') AS [IsClustered], +SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS [ComputerNamePhysicalNetBIOS], +SERVERPROPERTY('Edition') AS [Edition], SERVERPROPERTY('ProductLevel') AS [ProductLevel], +SERVERPROPERTY('ProductVersion') AS [ProductVersion], SERVERPROPERTY('ProcessID') AS [ProcessID], +SERVERPROPERTY('Collation') AS [Collation], SERVERPROPERTY('IsFullTextInstalled') AS [IsFullTextInstalled], +SERVERPROPERTY('IsIntegratedSecurityOnly') AS [IsIntegratedSecurityOnly]; +------ + +-- This gives you a lot of useful information about your instance of SQL Server, +-- such as the ProcessID for SQL Server and your collation + + +-- Get SQL Server Agent jobs and Category information (Query 4) (SQL Server Agent Jobs) +SELECT sj.name AS [Job Name], sj.[description] AS [Job Description], SUSER_SNAME(sj.owner_sid) AS [Job Owner], +sj.date_created AS [Date Created], sj.[enabled] AS [Job Enabled], +sj.notify_email_operator_id, sj.notify_level_email, sc.name AS [CategoryName], +s.[enabled] AS [Sched Enabled], js.next_run_date, js.next_run_time +FROM msdb.dbo.sysjobs AS sj WITH (NOLOCK) +INNER JOIN msdb.dbo.syscategories AS sc WITH (NOLOCK) +ON sj.category_id = sc.category_id +LEFT OUTER JOIN msdb.dbo.sysjobschedules AS js WITH (NOLOCK) +ON sj.job_id = js.job_id +LEFT OUTER JOIN msdb.dbo.sysschedules AS s WITH (NOLOCK) +ON js.schedule_id = s.schedule_id +ORDER BY sj.name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent jobs, who owns them and how they are configured +-- Look for Agent jobs that are not owned by sa +-- Look for jobs that have a notify_email_operator_id set to 0 (meaning no operator) +-- Look for jobs that have a notify_level_email set to 0 (meaning no e-mail is ever sent) +-- +-- MSDN sysjobs documentation +-- http://msdn.microsoft.com/en-us/library/ms189817.aspx + + +-- Get SQL Server Agent Alert Information (Query 5) (SQL Server Agent Alerts) +SELECT name, event_source, message_id, severity, [enabled], has_notification, + delay_between_responses, occurrence_count, last_occurrence_date, last_occurrence_time +FROM msdb.dbo.sysalerts WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent Alerts (which are different from SQL Server Agent jobs) +-- Read more about Agent Alerts here: https://www.sqlskills.com/blogs/glenn/creating-sql-server-agent-alerts-for-critical-errors/ + + +-- Returns a list of all global trace flags that are enabled (Query 6) (Global Trace Flags) +DBCC TRACESTATUS (-1); +------ + +-- If no global trace flags are enabled, no results will be returned. +-- It is very useful to know what global trace flags are currently enabled as part of the diagnostic process. + +-- Common trace flags that should be enabled in most cases +-- TF 1117 - When growing a data file, grow all files at the same time so they remain the same size, reducing allocation contention points +-- http://support2.microsoft.com/kb/2154845 +-- +-- TF 1118 - Helps alleviate allocation contention in tempdb, SQL Server allocates full extents to each database object, +-- thereby eliminating the contention on SGAM pages (more important with older versions of SQL Server) +-- Recommendations to reduce allocation contention in SQL Server tempdb database +-- http://support2.microsoft.com/kb/2154845 + +-- TF 2371 - Lowers auto update statistics threshold for large tables +-- http://blogs.msdn.com/b/saponsqlserver/archive/2011/09/07/changes-to-automatic-update-statistics-in-sql-server-traceflag-2371.aspx + +-- TF 3226 - Supresses logging of successful database backup messages to the SQL Server Error Log +-- https://www.sqlskills.com/blogs/paul/fed-up-with-backup-success-messages-bloating-your-error-logs/ + + +-- Windows information (SQL Server 2008 R2 SP1 or greater) (Query 7) (Windows Info) +SELECT windows_release, windows_service_pack_level, + windows_sku, os_language_version +FROM sys.dm_os_windows_info WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Gives you major OS version, Service Pack, Edition, and language info for the operating system +-- 6.3 is either Windows 8.1 or Windows Server 2012 R2 +-- 6.2 is either Windows 8 or Windows Server 2012 +-- 6.1 is either Windows 7 or Windows Server 2008 R2 +-- 6.0 is either Windows Vista or Windows Server 2008 +-- 5.2 is either Windows XP or Windows Server 2003 + +-- Windows SKU codes +-- 4 is Enterprise Edition +-- 7 is Standard Server Edition +-- 8 is Datacenter Server Edition +-- 10 is Enterprise Server Edition +-- 48 is Professional Edition + +-- 1033 for os_language_version is US-English + +-- Hardware and Software Requirements for Installing SQL Server 2008 R2 +-- http://msdn.microsoft.com/en-us/library/ms143506(v=sql.105).aspx + +-- Using SQL Server in Windows 8, Windows 8.1, Windows Server 2012 and Windows Server 2012 R2 environments +-- http://support.microsoft.com/kb/2681562 + + +-- SQL Server Services information (SQL Server 2008 R2 SP1 or greater) (Query 8) (SQL Server Services Info) +SELECT servicename, process_id, startup_type_desc, status_desc, +last_startup_time, service_account, is_clustered, cluster_nodename, [filename] +FROM sys.dm_server_services WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Tells you the account being used for the SQL Server Service and the SQL Agent Service +-- Shows the processid, when they were last started, and their current status +-- Shows whether you are running on a failover cluster instance + + +-- SQL Server NUMA Node information (Query 9) (SQL Server NUMA Info) +SELECT node_id, node_state_desc, memory_node_id, processor_group, online_scheduler_count, + active_worker_count, avg_load_balance, resource_monitor_state +FROM sys.dm_os_nodes WITH (NOLOCK) +WHERE node_state_desc <> N'ONLINE DAC' OPTION (RECOMPILE); +------ + +-- Gives you some useful information about the composition +-- and relative load on your NUMA nodes + + +-- Hardware information from SQL Server 2008 R2 (Query 10) (Hardware Info) +-- (Cannot distinguish between HT and multi-core) +SELECT cpu_count AS [Logical CPU Count], hyperthread_ratio AS [Hyperthread Ratio], +cpu_count/hyperthread_ratio AS [Physical CPU Count], +physical_memory_in_bytes/1048576 AS [Physical Memory (MB)], +sqlserver_start_time, +DATEDIFF(hour, sqlserver_start_time, GETDATE()) AS [SQL Server Up Time (hrs)], +affinity_type_desc +FROM sys.dm_os_sys_info WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Gives you some good basic hardware information about your database server + + +-- Get System Manufacturer and model number from (Query 11) (System Manufacturer) +-- SQL Server Error log. This query might take a few seconds +-- if you have not recycled your error log recently +EXEC sys.xp_readerrorlog 0, 1, N'Manufacturer'; +------ + +-- This can help you determine the capabilities +-- and capacities of your database server + + +-- Get processor description from Windows Registry (Query 12) (Processor Description) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\CentralProcessor\0', N'ProcessorNameString'; +------ + +-- Gives you the model number and rated clock speed of your processor(s) +-- Your processors may be running at less than the rated clock speed due +-- to the Windows Power Plan or hardware power management + +-- You can use CPU-Z to get your actual CPU core speed and a lot of other useful information +-- http://www.cpuid.com/softwares/cpu-z.html + +-- You can learn more about processor selection for SQL Server by following this link +-- https://www.sqlskills.com/blogs/glenn/processor-selection-for-sql-server/ + + + +-- Get the current node name from your cluster nodes (Query 13) (Cluster Node Properties) +-- (if your database server is in a failover cluster) +SELECT NodeName +FROM sys.dm_os_cluster_nodes WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Knowing which node owns the cluster resources is critical +-- Especially when you are installing Windows or SQL Server updates +-- You will see no results if your instance is not clustered + + +-- Get configuration values for instance (Query 14) (Configuration Values) +SELECT name, value, value_in_use, minimum, maximum, [description], is_dynamic, is_advanced +FROM sys.configurations WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Focus on these settings: +-- backup compression default (should be 1 in most cases) +-- clr enabled (only enable if it is needed) +-- cost threshold for parallelism (depends on your workload) +-- lightweight pooling (should be zero) +-- max degree of parallelism (depends on your workload) +-- max server memory (MB) (set to an appropriate value, not the default) +-- optimize for ad hoc workloads (should be 1) +-- priority boost (should be zero) +-- remote admin connections (should be 1) + + + + +-- Get information on location, time and size of any memory dumps from SQL Server (SQL Server 2008 R2 SP1 or greater) (Query 15) (Memory Dump Info) +SELECT [filename], creation_time, size_in_bytes/1048576.0 AS [Size (MB)] +FROM sys.dm_server_memory_dumps WITH (NOLOCK) +ORDER BY creation_time DESC OPTION (RECOMPILE); +------ + +-- This will not return any rows if you have +-- not had any memory dumps (which is a good thing) + + +-- File names and paths for all user and system databases on instance (Query 16) (Database Filenames and Paths) +SELECT DB_NAME([database_id]) AS [Database Name], + [file_id], [name], physical_name, [type_desc], state_desc, + is_percent_growth, growth, + CONVERT(bigint, growth/128.0) AS [Growth in MB], + CONVERT(bigint, size/128.0) AS [Total Size in MB] +FROM sys.master_files WITH (NOLOCK) +ORDER BY DB_NAME([database_id]), [file_id] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- Are data files and log files on different drives? +-- Is everything on the C: drive? +-- Is TempDB on dedicated drives? +-- Is there only one TempDB data file? +-- Are all of the TempDB data files the same size? +-- Are there multiple data files for user databases? +-- Is percent growth enabled for any files (which is bad)? + + +-- Volume info for all LUNS that have database files on the current instance (SQL Server 2008 R2 SP1 or greater) (Query 17) (Volume Info) +SELECT DISTINCT vs.volume_mount_point, vs.file_system_type, +vs.logical_volume_name, CONVERT(DECIMAL(18,2),vs.total_bytes/1073741824.0) AS [Total Size (GB)], +CONVERT(DECIMAL(18,2),vs.available_bytes/1073741824.0) AS [Available Size (GB)], +CAST(CAST(vs.available_bytes AS FLOAT)/ CAST(vs.total_bytes AS FLOAT) AS DECIMAL(18,2)) * 100 AS [Space Free %] +FROM sys.master_files AS f WITH (NOLOCK) +CROSS APPLY sys.dm_os_volume_stats(f.database_id, f.[file_id]) AS vs OPTION (RECOMPILE); +------ + +--Shows you the total and free space on the LUNs where you have database files + + +-- Look for I/O requests taking longer than 15 seconds in the five most recent SQL Server Error Logs (Query 18) (IO Warnings) +CREATE TABLE #IOWarningResults(LogDate datetime, ProcessInfo sysname, LogText nvarchar(1000)); + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 0, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 1, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 2, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 3, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 4, 1, N'taking longer than 15 seconds'; + +SELECT LogDate, ProcessInfo, LogText +FROM #IOWarningResults +ORDER BY LogDate DESC; + +DROP TABLE #IOWarningResults; +------ + +-- Finding 15 second I/O warnings in the SQL Server Error Log is useful evidence of +-- poor I/O performance (which might have many different causes) +-- Look to see if you see any patterns in the results (same files, same drives, same time of day, etc.) + +-- Diagnostics in SQL Server help detect stalled and stuck I/O operations +-- https://support.microsoft.com/en-us/kb/897284 + + + +-- Drive level latency information (Query 19) (Drive Level Latency) +-- Based on code from Jimmy May +SELECT tab.[Drive], tab.volume_mount_point AS [Volume Mount Point], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (io_stall_read_ms/num_of_reads) + END AS [Read Latency], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (io_stall_write_ms/num_of_writes) + END AS [Write Latency], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE (io_stall/(num_of_reads + num_of_writes)) + END AS [Overall Latency], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (num_of_bytes_read/num_of_reads) + END AS [Avg Bytes/Read], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (num_of_bytes_written/num_of_writes) + END AS [Avg Bytes/Write], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE ((num_of_bytes_read + num_of_bytes_written)/(num_of_reads + num_of_writes)) + END AS [Avg Bytes/Transfer] +FROM (SELECT LEFT(UPPER(mf.physical_name), 2) AS Drive, SUM(num_of_reads) AS num_of_reads, + SUM(io_stall_read_ms) AS io_stall_read_ms, SUM(num_of_writes) AS num_of_writes, + SUM(io_stall_write_ms) AS io_stall_write_ms, SUM(num_of_bytes_read) AS num_of_bytes_read, + SUM(num_of_bytes_written) AS num_of_bytes_written, SUM(io_stall) AS io_stall, vs.volume_mount_point + FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS vfs + INNER JOIN sys.master_files AS mf WITH (NOLOCK) + ON vfs.database_id = mf.database_id AND vfs.file_id = mf.file_id + CROSS APPLY sys.dm_os_volume_stats(mf.database_id, mf.[file_id]) AS vs + GROUP BY LEFT(UPPER(mf.physical_name), 2), vs.volume_mount_point) AS tab +ORDER BY [Overall Latency] OPTION (RECOMPILE); +------ + +-- Shows you the drive-level latency for reads and writes, in milliseconds +-- Latency above 20-25ms is usually a problem + + +-- Calculates average stalls per read, per write, and per total input/output for each database file (Query 20) (IO Stalls by File) +SELECT DB_NAME(fs.database_id) AS [Database Name], CAST(fs.io_stall_read_ms/(1.0 + fs.num_of_reads) AS NUMERIC(16,1)) AS [avg_read_stall_ms], +CAST(fs.io_stall_write_ms/(1.0 + fs.num_of_writes) AS NUMERIC(16,1)) AS [avg_write_stall_ms], +CAST((fs.io_stall_read_ms + fs.io_stall_write_ms)/(1.0 + fs.num_of_reads + fs.num_of_writes) AS NUMERIC(16,1)) AS [avg_io_stall_ms], +CONVERT(DECIMAL(18,2), mf.size/128.0) AS [File Size (MB)], mf.physical_name, mf.type_desc, fs.io_stall_read_ms, fs.num_of_reads, +fs.io_stall_write_ms, fs.num_of_writes, fs.io_stall_read_ms + fs.io_stall_write_ms AS [io_stalls], fs.num_of_reads + fs.num_of_writes AS [total_io] +FROM sys.dm_io_virtual_file_stats(null,null) AS fs +INNER JOIN sys.master_files AS mf WITH (NOLOCK) +ON fs.database_id = mf.database_id +AND fs.[file_id] = mf.[file_id] +ORDER BY avg_io_stall_ms DESC OPTION (RECOMPILE); +------ + +-- Helps determine which database files on the entire instance have the most I/O bottlenecks +-- This can help you decide whether certain LUNs are overloaded and whether you might +-- want to move some files to a different location or perhaps improve your I/O performance + + +-- Recovery model, log reuse wait description, log file size, log usage size (Query 21) (Database Properties) +-- and compatibility level for all databases on instance +SELECT db.[name] AS [Database Name], SUSER_SNAME(db.owner_sid) AS [Database Owner], db.recovery_model_desc AS [Recovery Model], +db.log_reuse_wait_desc AS [Log Reuse Wait Description], +ls.cntr_value AS [Log Size (KB)], lu.cntr_value AS [Log Used (KB)], +CAST(CAST(lu.cntr_value AS FLOAT) / CAST(ls.cntr_value AS FLOAT)AS DECIMAL(18,2)) * 100 AS [Log Used %], +db.[compatibility_level] AS [DB Compatibility Level], +db.page_verify_option_desc AS [Page Verify Option], db.is_auto_create_stats_on, db.is_auto_update_stats_on, +db.is_auto_update_stats_async_on, db.is_parameterization_forced, +db.snapshot_isolation_state_desc, db.is_read_committed_snapshot_on, +db.is_auto_close_on, db.is_auto_shrink_on, db.is_cdc_enabled, db.is_published +FROM sys.databases AS db WITH (NOLOCK) +INNER JOIN sys.dm_os_performance_counters AS lu WITH (NOLOCK) +ON db.name = lu.instance_name +INNER JOIN sys.dm_os_performance_counters AS ls WITH (NOLOCK) +ON db.name = ls.instance_name +WHERE lu.counter_name LIKE N'Log File(s) Used Size (KB)%' +AND ls.counter_name LIKE N'Log File(s) Size (KB)%' +AND ls.cntr_value > 0 +ORDER BY db.[name] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- How many databases are on the instance? +-- What recovery models are they using? +-- What is the log reuse wait description? +-- How full are the transaction logs ? +-- What compatibility level are the databases on? +-- What is the Page Verify Option? (should be CHECKSUM) +-- Is Auto Update Statistics Asynchronously enabled? +-- Make sure auto_shrink and auto_close are not enabled! + + + +-- Missing Indexes for all databases by Index Advantage (Query 22) (Missing Indexes All Databases) +SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Getting missing index information for all of the databases on the instance is very useful +-- Look at last user seek time, number of user seeks to help determine source and importance +-- Also look at avg_user_impact and avg_total_user_cost to help determine importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + + + +-- Get VLF Counts for all databases on the instance (Query 23) (VLF Counts) +-- (adapted from Michelle Ufford) +CREATE TABLE #VLFInfo (FileID int, + FileSize bigint, StartOffset bigint, + FSeqNo bigint, [Status] bigint, + Parity bigint, CreateLSN numeric(38)); + +CREATE TABLE #VLFCountResults(DatabaseName sysname, VLFCount int); + +EXEC sp_MSforeachdb N'Use [?]; + + INSERT INTO #VLFInfo + EXEC sp_executesql N''DBCC LOGINFO([?])''; + + INSERT INTO #VLFCountResults + SELECT DB_NAME(), COUNT(*) + FROM #VLFInfo; + + TRUNCATE TABLE #VLFInfo;' + +SELECT DatabaseName, VLFCount +FROM #VLFCountResults +ORDER BY VLFCount DESC; + +DROP TABLE #VLFInfo; +DROP TABLE #VLFCountResults; +------ + +-- High VLF counts can affect write performance +-- and they can make full database restores and crash recovery take much longer +-- Try to keep your VLF counts under 200 in most cases (depending on log file size) + + + +-- Get CPU utilization by database (Query 24) (CPU Usage by Database) +WITH DB_CPU_Stats +AS +(SELECT pa.DatabaseID, DB_Name(pa.DatabaseID) AS [Database Name], SUM(qs.total_worker_time/1000) AS [CPU_Time_Ms] + FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) + CROSS APPLY (SELECT CONVERT(int, value) AS [DatabaseID] + FROM sys.dm_exec_plan_attributes(qs.plan_handle) + WHERE attribute = N'dbid') AS pa + GROUP BY DatabaseID) +SELECT ROW_NUMBER() OVER(ORDER BY [CPU_Time_Ms] DESC) AS [CPU Rank], + [Database Name], [CPU_Time_Ms] AS [CPU Time (ms)], + CAST([CPU_Time_Ms] * 1.0 / SUM([CPU_Time_Ms]) OVER() * 100.0 AS DECIMAL(5, 2)) AS [CPU Percent] +FROM DB_CPU_Stats +WHERE DatabaseID <> 32767 -- ResourceDB +ORDER BY [CPU Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most CPU resources on the instance +-- Note: This only reflects CPU usage from the currently cached query plans + + +-- Get I/O utilization by database (Query 25) (IO Usage By Database) +WITH Aggregate_IO_Statistics +AS +(SELECT DB_NAME(database_id) AS [Database Name], +CAST(SUM(num_of_bytes_read + num_of_bytes_written)/1048576 AS DECIMAL(12, 2)) AS io_in_mb +FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS [DM_IO_STATS] +GROUP BY database_id) +SELECT ROW_NUMBER() OVER(ORDER BY io_in_mb DESC) AS [I/O Rank], [Database Name], io_in_mb AS [Total I/O (MB)], + CAST(io_in_mb/ SUM(io_in_mb) OVER() * 100.0 AS DECIMAL(5,2)) AS [I/O Percent] +FROM Aggregate_IO_Statistics +ORDER BY [I/O Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most I/O resources on the instance + + +-- Get total buffer usage by database for current instance (Query 26) (Total Buffer Usage by Database) +-- This make take some time to run on a busy instance +WITH AggregateBufferPoolUsage +AS +(SELECT DB_NAME(database_id) AS [Database Name], +CAST(COUNT(*) * 8/1024.0 AS DECIMAL (10,2)) AS [CachedSize] +FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) +WHERE database_id <> 32767 -- ResourceDB +GROUP BY DB_NAME(database_id)) +SELECT ROW_NUMBER() OVER(ORDER BY CachedSize DESC) AS [Buffer Pool Rank], [Database Name], CachedSize AS [Cached Size (MB)], + CAST(CachedSize / SUM(CachedSize) OVER() * 100.0 AS DECIMAL(5,2)) AS [Buffer Pool Percent] +FROM AggregateBufferPoolUsage +ORDER BY [Buffer Pool Rank] OPTION (RECOMPILE); +------ + +-- Tells you how much memory (in the buffer pool) +-- is being used by each database on the instance + + +-- Clear Wait Stats with this command +-- DBCC SQLPERF('sys.dm_os_wait_stats', CLEAR); + +-- Isolate top waits for server instance since last restart or wait statistics clear (Query 27) (Top Waits) +WITH [Waits] +AS (SELECT wait_type, wait_time_ms/ 1000.0 AS [WaitS], + (wait_time_ms - signal_wait_time_ms) / 1000.0 AS [ResourceS], + signal_wait_time_ms / 1000.0 AS [SignalS], + waiting_tasks_count AS [WaitCount], + 100.0 * wait_time_ms / SUM (wait_time_ms) OVER() AS [Percentage], + ROW_NUMBER() OVER(ORDER BY wait_time_ms DESC) AS [RowNum] + FROM sys.dm_os_wait_stats WITH (NOLOCK) + WHERE [wait_type] NOT IN ( + N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', + N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', + N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', + N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', + N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', + N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', + N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', + N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', + N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', + N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', + N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', + N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', + N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', + N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', + N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', + N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', + N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', + N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', + N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') + AND waiting_tasks_count > 0) +SELECT + MAX (W1.wait_type) AS [WaitType], + CAST (MAX (W1.Percentage) AS DECIMAL (5,2)) AS [Wait Percentage], + CAST ((MAX (W1.WaitS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgWait_Sec], + CAST ((MAX (W1.ResourceS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgRes_Sec], + CAST ((MAX (W1.SignalS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgSig_Sec], + CAST (MAX (W1.WaitS) AS DECIMAL (16,2)) AS [Wait_Sec], + CAST (MAX (W1.ResourceS) AS DECIMAL (16,2)) AS [Resource_Sec], + CAST (MAX (W1.SignalS) AS DECIMAL (16,2)) AS [Signal_Sec], + MAX (W1.WaitCount) AS [Wait Count], + CAST (N'https://www.sqlskills.com/help/waits/' + W1.wait_type AS XML) AS [Help/Info URL] +FROM Waits AS W1 +INNER JOIN Waits AS W2 +ON W2.RowNum <= W1.RowNum +GROUP BY W1.RowNum, W1.wait_type +HAVING SUM (W2.Percentage) - MAX (W1.Percentage) < 99 -- percentage threshold +OPTION (RECOMPILE); +------ + +-- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure + +-- SQL Server Wait Types Library (Paul Randal) +-- https://www.sqlskills.com/help/waits/ + +-- The SQL Server Wait Type Repository +-- http://blogs.msdn.com/b/psssql/archive/2009/11/03/the-sql-server-wait-type-repository.aspx + +-- Wait statistics, or please tell me where it hurts +-- https://www.sqlskills.com/blogs/paul/wait-statistics-or-please-tell-me-where-it-hurts/ + +-- SQL Server 2005 Performance Tuning using the Waits and Queues +-- http://technet.microsoft.com/en-us/library/cc966413.aspx + +-- sys.dm_os_wait_stats (Transact-SQL) +-- http://msdn.microsoft.com/en-us/library/ms179984(v=sql.105).aspx + + + + +-- Signal Waits for instance (Query 28) (Signal Waits) +SELECT CAST(100.0 * SUM(signal_wait_time_ms) / SUM (wait_time_ms) AS NUMERIC(20,2)) AS [% Signal (CPU) Waits], +CAST(100.0 * SUM(wait_time_ms - signal_wait_time_ms) / SUM (wait_time_ms) AS NUMERIC(20,2)) AS [% Resource Waits] +FROM sys.dm_os_wait_stats WITH (NOLOCK) +WHERE wait_type NOT IN ( + N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', + N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', + N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', + N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', + N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', + N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', + N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', + N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', + N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', + N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', + N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', + N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', + N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', + N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', + N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', + N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', + N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', + N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', + N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') OPTION (RECOMPILE); +------ + +-- Signal Waits above 10-15% is usually a confirming sign of CPU pressure +-- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure +-- Resource waits are non-CPU related waits + + +-- Get logins that are connected and how many sessions they have (Query 29) (Connection Counts) +SELECT login_name, [program_name], COUNT(session_id) AS [session_count] +FROM sys.dm_exec_sessions WITH (NOLOCK) +GROUP BY login_name, [program_name] +ORDER BY COUNT(session_id) DESC OPTION (RECOMPILE); +------ + +-- This can help characterize your workload and +-- determine whether you are seeing a normal level of activity + + +-- Get a count of SQL connections by IP address (Query 30) (Connection Counts by IP Address) +SELECT ec.client_net_address, es.[program_name], es.[host_name], es.login_name, +COUNT(ec.session_id) AS [connection count] +FROM sys.dm_exec_sessions AS es WITH (NOLOCK) +INNER JOIN sys.dm_exec_connections AS ec WITH (NOLOCK) +ON es.session_id = ec.session_id +GROUP BY ec.client_net_address, es.[program_name], es.[host_name], es.login_name +ORDER BY ec.client_net_address, es.[program_name] OPTION (RECOMPILE); +------ + +-- This helps you figure where your database load is coming from +-- and verifies connectivity from other machines + + +-- Get Average Task Counts (run multiple times) (Query 31) (Avg Task Counts) +SELECT AVG(current_tasks_count) AS [Avg Task Count], +AVG(runnable_tasks_count) AS [Avg Runnable Task Count], +AVG(pending_disk_io_count) AS [Avg Pending DiskIO Count] +FROM sys.dm_os_schedulers WITH (NOLOCK) +WHERE scheduler_id < 255 OPTION (RECOMPILE); +------ + +-- Sustained values above 10 suggest further investigation in that area +-- High Avg Task Counts are often caused by blocking/deadlocking or other resource contention + +-- Sustained values above 1 suggest further investigation in that area +-- High Avg Runnable Task Counts are a good sign of CPU pressure +-- High Avg Pending DiskIO Counts are a sign of disk pressure + +-- How to Do Some Very Basic SQL Server Monitoring +-- https://www.sqlskills.com/blogs/glenn/how-to-do-some-very-basic-sql-server-monitoring/ + + + +-- Get CPU Utilization History for last 256 minutes (in one minute intervals) (Query 32) (CPU Utilization History) +-- This version works with SQL Server 2008 R2 +DECLARE @ts_now bigint = (SELECT cpu_ticks/(cpu_ticks/ms_ticks) FROM sys.dm_os_sys_info WITH (NOLOCK)); + +SELECT TOP(256) SQLProcessUtilization AS [SQL Server Process CPU Utilization], + SystemIdle AS [System Idle Process], + 100 - SystemIdle - SQLProcessUtilization AS [Other Process CPU Utilization], + DATEADD(ms, -1 * (@ts_now - [timestamp]), GETDATE()) AS [Event Time] +FROM ( + SELECT record.value('(./Record/@id)[1]', 'int') AS record_id, + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') + AS [SystemIdle], + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', + 'int') + AS [SQLProcessUtilization], [timestamp] + FROM ( + SELECT [timestamp], CONVERT(xml, record) AS [record] + FROM sys.dm_os_ring_buffers WITH (NOLOCK) + WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' + AND record LIKE N'%%') AS x + ) AS y +ORDER BY record_id DESC OPTION (RECOMPILE); +------ + +-- Look at the trend over the entire period. +-- Also look at high sustained Other Process CPU Utilization values + + +-- Get top total worker time queries for entire instance (Query 33) (Top Worker Time Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], t.[text] AS [Query Text], +qs.total_worker_time AS [Total Worker Time], qs.min_worker_time AS [Min Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.max_worker_time AS [Max Worker Time], qs.execution_count AS [Execution Count], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.total_physical_reads/qs.execution_count AS [Avg Physical Reads], qs.creation_time AS [Creation Time] +, qp.query_plan AS [Query Plan] -- comment out this column if copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + + +-- Helps you find the most expensive queries from a CPU perspective across the entire instance + + + +-- Good basic information about OS memory amounts and state (Query 34) (System Memory) +SELECT total_physical_memory_kb/1024 AS [Physical Memory (MB)], + available_physical_memory_kb/1024 AS [Available Memory (MB)], + total_page_file_kb/1024 AS [Total Page File (MB)], + available_page_file_kb/1024 AS [Available Page File (MB)], + system_cache_kb/1024 AS [System Cache (MB)], + system_memory_state_desc AS [System Memory State] +FROM sys.dm_os_sys_memory WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You want to see "Available physical memory is high" +-- This indicates that you are not under external memory pressure + + +-- SQL Server Process Address space info (Query 35) (Process Memory) +-- (shows whether locked pages is enabled, among other things) +SELECT physical_memory_in_use_kb/1024 AS [SQL Server Memory Usage (MB)], + large_page_allocations_kb, locked_page_allocations_kb, page_fault_count, + memory_utilization_percentage, available_commit_limit_kb, + process_physical_memory_low, process_virtual_memory_low +FROM sys.dm_os_process_memory WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You want to see 0 for process_physical_memory_low +-- You want to see 0 for process_virtual_memory_low +-- This indicates that you are not under internal memory pressure + + +-- Page Life Expectancy (PLE) value for each NUMA node in current instance (Query 36) (PLE by NUMA Node) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], instance_name, cntr_value AS [Page Life Expectancy] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Buffer Node%' -- Handles named instances +AND counter_name = N'Page life expectancy' OPTION (RECOMPILE); +------ + +-- PLE is a good measurement of memory pressure. +-- Higher PLE is better. Watch the trend over time, not the absolute value. +-- This will only return one row for non-NUMA systems. + +-- Page Life Expectancy isnt what you think +-- https://www.sqlskills.com/blogs/paul/page-life-expectancy-isnt-what-you-think/ + + + +-- Memory Grants Pending value for current instance (Query 37) (Memory Grants Pending) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], cntr_value AS [Memory Grants Pending] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Memory Manager%' -- Handles named instances +AND counter_name = N'Memory Grants Pending' OPTION (RECOMPILE); +------ + +-- Memory Grants Pending above zero for a sustained period is a very strong indicator of memory pressure + + +-- Memory Clerk Usage for instance (Query 38) (Memory Clerk Usage) +-- Look for high value for CACHESTORE_SQLCP (Ad-hoc query plans) +SELECT TOP(10) [type] AS [Memory Clerk Type], SUM(single_pages_kb)/1024 AS [SPA Memory Usage (MB)] +FROM sys.dm_os_memory_clerks WITH (NOLOCK) +GROUP BY [type] +ORDER BY SUM(single_pages_kb) DESC OPTION (RECOMPILE); +------ + +-- CACHESTORE_SQLCP SQL Plans +-- These are cached SQL statements or batches that aren't in stored procedures, functions and triggers +-- Watch out for high values for CACHESTORE_SQLCP + +-- CACHESTORE_OBJCP Object Plans +-- These are compiled plans for stored procedures, functions and triggers + + + +-- Find single-use, ad-hoc and prepared queries that are bloating the plan cache (Query 39) (Ad hoc Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], t.[text] AS [Query Text], +cp.objtype AS [Object Type], cp.cacheobjtype AS [Cache Object Type], +cp.size_in_bytes/1024 AS [Plan Size in KB] +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +WHERE cp.cacheobjtype = N'Compiled Plan' +AND cp.objtype IN (N'Adhoc', N'Prepared') +AND cp.usecounts = 1 +ORDER BY cp.size_in_bytes DESC, DB_NAME(t.[dbid]) OPTION (RECOMPILE); +------ + +-- Gives you the text, type and size of single-use ad-hoc and prepared queries that waste space in the plan cache +-- Enabling 'optimize for ad hoc workloads' for the instance can help (SQL Server 2008 and above only) +-- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this. +-- Enabling forced parameterization for the database can help, but test first! + +-- Plan cache, adhoc workloads and clearing the single-use plan cache bloat +-- https://www.sqlskills.com/blogs/kimberly/plan-cache-adhoc-workloads-and-clearing-the-single-use-plan-cache-bloat/ + + + +-- Database specific queries ***************************************************************** + +-- **** Please switch to a user database that you are interested in! ***** +USE YourDatabaseName; -- make sure to change to an actual database on your instance, not the master system database +GO + +-- Individual File Sizes and space available for current database (Query 40) (File Sizes and Space) +SELECT f.name AS [File Name] , f.physical_name AS [Physical Name], +CAST((f.size/128.0) AS DECIMAL(15,2)) AS [Total Size in MB], +CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) +AS [Available Space In MB], [file_id], fg.name AS [Filegroup Name] +FROM sys.database_files AS f WITH (NOLOCK) +LEFT OUTER JOIN sys.data_spaces AS fg WITH (NOLOCK) +ON f.data_space_id = fg.data_space_id OPTION (RECOMPILE); +------ + +-- Look at how large and how full the files are and where they are located +-- Make sure the transaction log is not full!! + + + +-- I/O Statistics by file for the current database (Query 41) (IO Stats By File) +SELECT DB_NAME(DB_ID()) AS [Database Name], df.name AS [Logical Name], vfs.[file_id], +df.physical_name AS [Physical Name], vfs.num_of_reads, vfs.num_of_writes, vfs.io_stall_read_ms, vfs.io_stall_write_ms, +CAST(100. * vfs.io_stall_read_ms/(vfs.io_stall_read_ms + vfs.io_stall_write_ms) AS DECIMAL(10,1)) AS [IO Stall Reads Pct], +CAST(100. * vfs.io_stall_write_ms/(vfs.io_stall_write_ms + vfs.io_stall_read_ms) AS DECIMAL(10,1)) AS [IO Stall Writes Pct], +(vfs.num_of_reads + vfs.num_of_writes) AS [Writes + Reads], +CAST(vfs.num_of_bytes_read/1048576.0 AS DECIMAL(10, 2)) AS [MB Read], +CAST(vfs.num_of_bytes_written/1048576.0 AS DECIMAL(10, 2)) AS [MB Written], +CAST(100. * vfs.num_of_reads/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Reads Pct], +CAST(100. * vfs.num_of_writes/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Write Pct], +CAST(100. * vfs.num_of_bytes_read/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Read Bytes Pct], +CAST(100. * vfs.num_of_bytes_written/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Written Bytes Pct] +FROM sys.dm_io_virtual_file_stats(DB_ID(), NULL) AS vfs +INNER JOIN sys.database_files AS df WITH (NOLOCK) +ON vfs.[file_id]= df.[file_id] OPTION (RECOMPILE); +------ + +-- This helps you characterize your workload better from an I/O perspective for this database +-- It helps you determine whether you has an OLTP or DW/DSS type of workload + + + +-- Top cached queries by Execution Count (SQL Server 2008 R2) (Query 42) (Query Execution Counts) +-- SQL Server 2008 R2 SP1 and greater only +SELECT TOP (100) qs.execution_count, qs.total_rows, qs.last_rows, qs.min_rows, qs.max_rows, +qs.last_elapsed_time, qs.min_elapsed_time, qs.max_elapsed_time, +total_worker_time, total_logical_reads, +SUBSTRING(qt.TEXT,qs.statement_start_offset/2 +1, +(CASE WHEN qs.statement_end_offset = -1 + THEN LEN(CONVERT(NVARCHAR(MAX), qt.TEXT)) * 2 + ELSE qs.statement_end_offset END - qs.statement_start_offset)/2) AS query_text +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Uses several new rows returned columns to help troubleshoot performance problems + + +-- Top Cached SPs By Execution Count (SQL 2008 R2) (Query 43) (SP Execution Counts) +SELECT TOP(100) p.name AS [SP Name], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.total_worker_time AS [TotalWorkerTime], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +qs.cached_time +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +WHERE qs.database_id = DB_ID() +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Tells you which cached stored procedures are called the most often +-- This helps you characterize and baseline your workload + + +-- Top Cached SPs By Avg Elapsed Time (SQL 2008 R2) (Query 44) (SP Avg Elapsed Time) +SELECT TOP(25) p.name AS [SP Name], qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +qs.total_elapsed_time, qs.execution_count, ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, +GETDATE()), 0) AS [Calls/Minute], qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], +qs.total_worker_time AS [TotalWorkerTime], qs.cached_time +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +WHERE qs.database_id = DB_ID() +ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find long-running cached stored procedures that +-- may be easy to optimize with standard query tuning techniques + + +-- Top Cached SPs By Avg Elapsed Time with execution time variability (Query 45) (SP Avg Elapsed Variable Time) +SELECT TOP(25) p.name AS [SP Name], qs.execution_count, qs.min_elapsed_time, +qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +qs.max_elapsed_time, qs.last_elapsed_time, qs.cached_time +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +WHERE qs.database_id = DB_ID() +ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); +------ + +-- This gives you some interesting information about the variability in the +-- execution time of your cached stored procedures, which is useful for tuning + + +-- Top Cached SPs By Total Worker time (SQL 2008 R2). Worker time relates to CPU cost (Query 46) (SP Worker Time) +SELECT TOP(25) p.name AS [SP Name], qs.total_worker_time AS [TotalWorkerTime], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count +AS [avg_elapsed_time], qs.cached_time +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +WHERE qs.database_id = DB_ID() +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); + +-- This helps you find the most expensive cached stored procedures from a CPU perspective +-- You should look at this if you see signs of CPU pressure + + +-- Top Cached SPs By Total Logical Reads (SQL 2008 R2). Logical reads relate to memory pressure (Query 47) (SP Logical Reads) +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_reads AS [TotalLogicalReads], +qs.total_logical_reads/qs.execution_count AS [AvgLogicalReads],qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count +AS [avg_elapsed_time], qs.cached_time +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +WHERE qs.database_id = DB_ID() +ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a memory perspective +-- You should look at this if you see signs of memory pressure + + +-- Top Cached SPs By Total Physical Reads (SQL 2008 R2). Physical reads relate to disk I/O pressure (Query 48) (SP Physical Reads) +SELECT TOP(25) p.name AS [SP Name],qs.total_physical_reads AS [TotalPhysicalReads], +qs.total_physical_reads/qs.execution_count AS [AvgPhysicalReads], qs.execution_count, +qs.total_logical_reads,qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count +AS [avg_elapsed_time], qs.cached_time +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +WHERE qs.database_id = DB_ID() +AND qs.total_physical_reads > 0 +ORDER BY qs.total_physical_reads DESC, qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a read I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + +-- Top Cached SPs By Total Logical Writes (SQL 2008 R2) (Query 49) (SP Logical Writes) +-- Logical writes relate to both memory and disk I/O pressure +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_writes AS [TotalLogicalWrites], +qs.total_logical_writes/qs.execution_count AS [AvgLogicalWrites], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Second, qs.cached_time, GETDATE()), 0) AS [Calls/Second], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +qs.cached_time +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +WHERE qs.database_id = DB_ID() +AND qs.total_logical_writes > 0 +ORDER BY qs.total_logical_writes DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a write I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + +-- Lists the top statements by average input/output usage for the current database (Query 50) (Top IO Statements) +SELECT TOP(50) OBJECT_NAME(qt.objectid, dbid) AS [SP Name], +(qs.total_logical_reads + qs.total_logical_writes) /qs.execution_count AS [Avg IO], qs.execution_count AS [Execution Count], +SUBSTRING(qt.[text],qs.statement_start_offset/2, + (CASE + WHEN qs.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE qs.statement_end_offset + END - qs.statement_start_offset)/2) AS [Query Text] +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt +WHERE qt.[dbid] = DB_ID() +ORDER BY [Avg IO] DESC OPTION (RECOMPILE); +------ + +-- Helps you find the most expensive statements for I/O by SP + + + +-- Possible Bad NC Indexes (writes > reads) (Query 51) (Bad NC Indexes) +SELECT OBJECT_NAME(s.[object_id]) AS [Table Name], i.name AS [Index Name], i.index_id, +i.is_disabled, i.is_hypothetical, i.has_filter, i.fill_factor, +user_updates AS [Total Writes], user_seeks + user_scans + user_lookups AS [Total Reads], +user_updates - (user_seeks + user_scans + user_lookups) AS [Difference] +FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON s.[object_id] = i.[object_id] +AND i.index_id = s.index_id +WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 +AND s.database_id = DB_ID() +AND s.user_updates > (s.user_seeks + s.user_scans + s.user_lookups) +AND i.index_id > 1 AND i.[type_desc] = N'NONCLUSTERED' +AND i.is_primary_key = 0 AND i.is_unique_constraint = 0 +ORDER BY [Difference] DESC, [Total Writes] DESC, [Total Reads] ASC OPTION (RECOMPILE); +------ + +-- Look for indexes with high numbers of writes and zero or very low numbers of reads +-- Consider your complete workload, and how long your instance has been running +-- Investigate further before dropping an index! + + +-- Missing Indexes for current database by Index Advantage (Query 52) (Missing Indexes) +SELECT DISTINCT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact, +OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows] +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON p.[object_id] = mid.[object_id] +WHERE mid.database_id = DB_ID() +AND p.index_id < 2 +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Look at index advantage, last user seek time, number of user seeks to help determine source and importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + + +-- Find missing index warnings for cached plans in the current database (Query 53) (Missing Index Warnings) +-- Note: This query could take some time on a busy instance +SELECT TOP(25) OBJECT_NAME(objectid) AS [ObjectName], + query_plan, cp.objtype, cp.usecounts +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp +WHERE CAST(query_plan AS NVARCHAR(MAX)) LIKE N'%MissingIndex%' +AND dbid = DB_ID() +ORDER BY cp.usecounts DESC OPTION (RECOMPILE); +------ + +-- Helps you connect missing indexes to specific stored procedures +-- This can help you decide whether to add them or not + + +-- Breaks down buffers used by current database by object (table, index) in the buffer cache (Query 54) (Buffer Usage) +-- Note: This query could take some time on a busy instance +SELECT OBJECT_NAME(p.[object_id]) AS [Object Name], p.index_id, +CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], +COUNT(*) AS [BufferCount], p.Rows AS [Row Count], +p.data_compression_desc AS [Compression Type] +FROM sys.allocation_units AS a WITH (NOLOCK) +INNER JOIN sys.dm_os_buffer_descriptors AS b WITH (NOLOCK) +ON a.allocation_unit_id = b.allocation_unit_id +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON a.container_id = p.hobt_id +WHERE b.database_id = CONVERT(int,DB_ID()) +AND p.[object_id] > 100 +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'plan_%' +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'sys%' +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'xml_index_nodes%' +GROUP BY p.[object_id], p.index_id, p.data_compression_desc, p.[Rows] +ORDER BY [BufferCount] DESC OPTION (RECOMPILE); +------ + +-- Tells you what tables and indexes are using the most memory in the buffer cache +-- It can help identify possible candidates for data compression + + +-- Get Table names, row counts, and compression status for clustered index or heap (Query 55) (Table Sizes) +SELECT SCHEMA_NAME(o.Schema_ID) AS [Schema Name], OBJECT_NAME(p.object_id) AS [ObjectName], +SUM(p.Rows) AS [RowCount], data_compression_desc AS [CompressionType] +FROM sys.partitions AS p WITH (NOLOCK) +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON p.object_id = o.object_id +WHERE index_id < 2 --ignore the partitions from the non-clustered index if any +AND OBJECT_NAME(p.object_id) NOT LIKE N'sys%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'spt_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'queue_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filestream_tombstone%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'fulltext%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'ifts_comp_fragment%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filetable_updates%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'xml_index_nodes%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'sqlagent_job%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'plan_persist%' +GROUP BY SCHEMA_NAME(o.Schema_ID), p.object_id, data_compression_desc +ORDER BY SUM(p.Rows) DESC OPTION (RECOMPILE); +------ + +-- Gives you an idea of table sizes, and possible data compression opportunities + + + +-- Get some key table properties (Query 56) (Table Properties) +SELECT [name], create_date, lock_on_bulk_load, is_replicated, has_replication_filter, + is_tracked_by_cdc, lock_escalation_desc +FROM sys.tables WITH (NOLOCK) +ORDER BY [name] OPTION (RECOMPILE); +------ + +-- Gives you some good information about your tables + + +-- Detect blocking (run multiple times) (Query 57) (Detect Blocking) +SELECT t1.resource_type AS [lock type], DB_NAME(resource_database_id) AS [database], +t1.resource_associated_entity_id AS [blk object],t1.request_mode AS [lock req], --- lock requested +t1.request_session_id AS [waiter sid], t2.wait_duration_ms AS [wait time], -- spid of waiter +(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK) -- get sql for waiter +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) +WHERE r.session_id = t1.request_session_id) AS [waiter_batch], +(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, + (CASE WHEN r.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE r.statement_end_offset END - r.statement_start_offset)/2) +FROM sys.dm_exec_requests AS r WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt +WHERE r.session_id = t1.request_session_id) AS [waiter_stmt], -- statement blocked +t2.blocking_session_id AS [blocker sid], -- spid of blocker +(SELECT [text] FROM sys.sysprocesses AS p -- get sql for blocker +CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) +WHERE p.spid = t2.blocking_session_id) AS [blocker_stmt] +FROM sys.dm_tran_locks AS t1 WITH (NOLOCK) +INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK) +ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE); +------ + +-- Helps troubleshoot blocking and deadlocking issues +-- The results will change from second to second on a busy system +-- You should run this query multiple times when you see signs of blocking + + + +-- When were Statistics last updated on all indexes? (Query 58) (Statistics Update) +SELECT SCHEMA_NAME(o.Schema_ID) + N'.' + o.NAME AS [Object Name], o.type_desc AS [Object Type], + i.name AS [Index Name], STATS_DATE(i.[object_id], i.index_id) AS [Statistics Date], + s.auto_created, s.no_recompute, s.user_created, st.row_count, st.used_page_count +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON o.[object_id] = i.[object_id] +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.stats_id +INNER JOIN sys.dm_db_partition_stats AS st WITH (NOLOCK) +ON o.[object_id] = st.[object_id] +AND i.[index_id] = st.[index_id] +WHERE o.[type] IN ('U', 'V') +AND st.row_count > 0 +ORDER BY STATS_DATE(i.[object_id], i.index_id) DESC OPTION (RECOMPILE); +------ + +-- Helps discover possible problems with out-of-date statistics +-- Also gives you an idea which indexes are the most active + + +-- Look at most frequently modified indexes and statistics (Query 59) (Volatile Indexes) +-- Requires SQL Server 2008 R2 SP2 or newer +SELECT o.name AS [Object Name], o.[object_id], o.type_desc, s.name AS [Statistics Name], + s.stats_id, s.no_recompute, s.auto_created, + sp.modification_counter, sp.rows, sp.rows_sampled, sp.last_updated +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON s.object_id = o.object_id +CROSS APPLY sys.dm_db_stats_properties(s.object_id, s.stats_id) AS sp +WHERE o.type_desc NOT IN (N'SYSTEM_TABLE', N'INTERNAL_TABLE') +AND sp.modification_counter > 0 +ORDER BY sp.modification_counter DESC, o.name OPTION (RECOMPILE); +------ + + +-- Get fragmentation info for all indexes above a certain size in the current database (Query 60) (Index Fragmentation) +-- Note: This query could take some time on a very large database +SELECT DB_NAME(ps.database_id) AS [Database Name], SCHEMA_NAME(o.[schema_id]) AS [Schema Name], +OBJECT_NAME(ps.OBJECT_ID) AS [Object Name], +i.name AS [Index Name], ps.index_id, ps.index_type_desc, ps.avg_fragmentation_in_percent, +ps.fragment_count, ps.page_count, i.fill_factor, i.has_filter, i.filter_definition, i.allow_page_locks +FROM sys.dm_db_index_physical_stats(DB_ID(),NULL, NULL, NULL , N'LIMITED') AS ps +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ps.[object_id] = i.[object_id] +AND ps.index_id = i.index_id +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON i.[object_id] = o.[object_id] +WHERE ps.database_id = DB_ID() +AND ps.page_count > 2500 +ORDER BY ps.avg_fragmentation_in_percent DESC OPTION (RECOMPILE); +------ + +-- Helps determine whether you have framentation in your relational indexes +-- and how effective your index maintenance strategy is + + +--- Index Read/Write stats (all tables in current DB) ordered by Reads (Query 61) (Overall Index Usage - Reads) +SELECT OBJECT_NAME(s.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, + user_seeks + user_scans + user_lookups AS [Reads], s.user_updates AS [Writes], + i.type_desc AS [IndexType], i.fill_factor AS [FillFactor], i.has_filter, i.filter_definition, + s.last_user_scan, s.last_user_lookup, s.last_user_seek +FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON s.[object_id] = i.[object_id] +WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +ORDER BY user_seeks + user_scans + user_lookups DESC OPTION (RECOMPILE); -- Order by reads +------ + + +-- Show which indexes in the current database are most active for Reads + + +--- Index Read/Write stats (all tables in current DB) ordered by Writes (Query 62) (Overall Index Usage - Writes) +SELECT OBJECT_NAME(s.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, + s.user_updates AS [Writes], user_seeks + user_scans + user_lookups AS [Reads], + i.type_desc AS [IndexType], i.fill_factor AS [FillFactor], i.has_filter, i.filter_definition, + s.last_system_update, s.last_user_update +FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON s.[object_id] = i.[object_id] +WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +ORDER BY s.user_updates DESC OPTION (RECOMPILE); -- Order by writes +------ + +-- Show which indexes in the current database are most active for Writes + + +-- Get lock waits for current database (Query 63) (Lock Waits) +SELECT o.name AS [table_name], i.name AS [index_name], ios.index_id, ios.partition_number, + SUM(ios.row_lock_wait_count) AS [total_row_lock_waits], + SUM(ios.row_lock_wait_in_ms) AS [total_row_lock_wait_in_ms], + SUM(ios.page_lock_wait_count) AS [total_page_lock_waits], + SUM(ios.page_lock_wait_in_ms) AS [total_page_lock_wait_in_ms], + SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) AS [total_lock_wait_in_ms] +FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) AS ios +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON ios.[object_id] = o.[object_id] +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ios.[object_id] = i.[object_id] +AND ios.index_id = i.index_id +WHERE o.[object_id] > 100 +GROUP BY o.name, i.name, ios.index_id, ios.partition_number +HAVING SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) > 0 +ORDER BY total_lock_wait_in_ms DESC OPTION (RECOMPILE); +------ + +-- This query is helpful for troubleshooting blocking and deadlocking issues + + +-- Look at recent Full backups for the current database (Query 64) (Recent Full Backups) +SELECT TOP (30) bs.machine_name, bs.server_name, bs.database_name AS [Database Name], bs.recovery_model, +CONVERT (BIGINT, bs.backup_size / 1048576 ) AS [Uncompressed Backup Size (MB)], +CONVERT (BIGINT, bs.compressed_backup_size / 1048576 ) AS [Compressed Backup Size (MB)], +CONVERT (NUMERIC (20,2), (CONVERT (FLOAT, bs.backup_size) / +CONVERT (FLOAT, bs.compressed_backup_size))) AS [Compression Ratio], bs.has_backup_checksums, bs.is_copy_only, +DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) AS [Backup Elapsed Time (sec)], +bs.backup_finish_date AS [Backup Finish Date], bmf.physical_device_name AS [Backup Location], bmf.physical_block_size +FROM msdb.dbo.backupset AS bs WITH (NOLOCK) +INNER JOIN msdb.dbo.backupmediafamily AS bmf WITH (NOLOCK) +ON bs.media_set_id = bmf.media_set_id +WHERE DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) > 0 +AND bs.backup_size > 0 +AND bs.type = 'D' -- Change to L if you want Log backups +AND database_name = DB_NAME(DB_ID()) +ORDER BY bs.backup_finish_date DESC OPTION (RECOMPILE); +------ + +-- Are your backup sizes and times changing over time? +-- Are you using backup checksums? +-- Are you doing copy_only backups? +-- Have you done any backup tuning with striped backups, or changing the parameters of the backup command? + + +-- These five Pluralsight Courses go into more detail about how to run these queries and interpret the results + +-- SQL Server 2017: Diagnosing Performance Issues with DMVs +-- https://bit.ly/2FqCeti + +-- SQL Server 2017: Diagnosing Configuration Issues with DMVs +-- https://bit.ly/2MSUDUL + +-- SQL Server 2014 DMV Diagnostic Queries Part 1 +-- https://bit.ly/2plxCer + +-- SQL Server 2014 DMV Diagnostic Queries Part 2 +-- https://bit.ly/2IuJpzI + +-- SQL Server 2014 DMV Diagnostic Queries Part 3 +-- https://bit.ly/2FIlCPb + + + +-- Sign up for Microsoft Visual Studio Dev Essentials and get a free three month pass to Pluralsight + +-- Microsoft Visual Studio Dev Essentials +-- http://bit.ly/1q6xbDL + + +-- Sign up for Microsoft Azure Essentials and get lots of free Azure usage credits, MCP exam voucher, three month Pluralsight subscription + +-- Microsoft Azure Essentials +-- https://bit.ly/2JMWe8x + + +-- August 2017 blog series about upgrading and migrating SQL Server +-- https://bit.ly/2ftKVrX diff --git a/Scripts/SQL Server 2012 Diagnostic Information Queries.sql b/Scripts/SQL Server 2012 Diagnostic Information Queries.sql index f16723a9..7a201172 100644 --- a/Scripts/SQL Server 2012 Diagnostic Information Queries.sql +++ b/Scripts/SQL Server 2012 Diagnostic Information Queries.sql @@ -1,1345 +1,1749 @@ - --- SQL Server 2012 Diagnostic Information Queries --- Glenn Berry --- May 2016 --- Last Modified: May 19, 2016 --- http://sqlserverperformance.wordpress.com/ --- http://sqlskills.com/blogs/glenn/ --- Twitter: GlennAlanBerry - --- Please listen to my Pluralsight courses --- http://www.pluralsight.com/author/glenn-berry - --- Please make sure you are using the correct version of these diagnostic queries for your version of SQL Server --- Many of these queries will not work if you have databases in 80 compatibility mode - ---****************************************************************************** ---* Copyright (C) 2016 Glenn Berry, SQLskills.com ---* All rights reserved. ---* ---* For more scripts and sample code, check out ---* http://sqlskills.com/blogs/glenn ---* ---* You may alter this code for your own *non-commercial* purposes. You may ---* republish altered code as long as you include this copyright and give due credit. ---* ---* ---* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ---* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED ---* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A ---* PARTICULAR PURPOSE. ---* ---****************************************************************************** - --- Check the major product version to see if it is SQL Server 2012 -IF NOT EXISTS (SELECT * WHERE CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')) LIKE '11%') - BEGIN - DECLARE @ProductVersion varchar(128) = CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')); - RAISERROR ('Script does not match the ProductVersion [%s] of this instance. Many of these queries may not work on this version.' , 18 , 16 , @ProductVersion); - END - ELSE - PRINT N'You have the correct major version of SQL Server for this diagnostic information script'; - - --- Instance level queries ******************************* - --- SQL and OS Version information for current instance (Query 1) (Version Info) -SELECT @@SERVERNAME AS [Server Name], @@VERSION AS [SQL Server and OS Version Info]; - --- SQL Server 2012 RTM Branch Builds SQL Server 2012 SP1 Branch Builds SQL Server 2012 SP2 Branch Builds SQL Server 2012 SP2 Branch Builds --- Build Description Release Date Build Description Release Date Build Description Release Date Build Description Release Date --- 11.0.2100 RTM 3/6/2012 --- 11.0.2316 RTM CU1 4/12/2012 --- 11.0.2325 RTM CU2 6/18/2012 --> 11.0.3000 SP1 RTM 11/7/2012 --- 11.0.2332 RTM CU3 8/31/2012 --- 11.0.2376 RTM CU3 + QFE 10/9/2012 --- 11.0.2383 RTM CU4 10/15/2012 --> 11.0.3321 SP1 CU1 11/20/2012 --- 11.0.2395 RTM CU5 12/17/2012 --> 11.0.3339 SP1 CU2 1/21/2013 --- 11.0.2401 RTM CU6 2/18/2013 --> 11.0.3349 SP1 CU3 3/18/2013 --- 11.0.2405 RTM CU7 4/15/2013 --> 11.0 3368 SP1 CU4 5/30/2013 --- 11.0.2410 RTM CU8 6/17/2013 --> 11.0.3373 SP1 CU5 7/15/2013 --- 11.0.2419 RTM CU9 8/20/2013 --> 11.0.3381 SP1 CU6 9/16/2013 --- 11.0.2420 RTM CU10 10/21/2013 --> 11.0.3393 SP1 CU7 11/18/2013 --- 11.0.2424 RTM CU11 12/16/2003 --> 11.0.3401 SP1 CU8 1/20/2014 --- 11.0.3412 SP1 CU9 3/17/2014 --> 11.0.5058 SP2 RTM 6/10/2014 --- 11.0.3431 SP1 CU10 5/19/2014 --- 11.0.3449 SP1 CU11 7/21/2014 --> 11.0.5532 SP2 CU1 7/23/2014 --- 11.0.3470 SP1 CU12 9/15/2014 --> 11.0.5548 SP2 CU2 9/15/2014 --- 11.0.3482 SP1 CU13 11/17/2014--> 11.0.5556 SP2 CU3 11/17/2014 --- 11.0.3486 SP1 CU14 1/19/2015 --> 11.0.5569 SP2 CU4 1/19/2015 --- 11.0.5571 SP2 CU4 + COD HF 2/4/2015 --- 11.0.3487 SP1 CU15 3/16/2015 --> 11.0.5582 SP2 CU5 3/16/2015 --- 11.0.3492 SP1 CU16 5/18/2015 --> 11.0.5592 SP2 CU6 5/18/2015 --- 11.0.5623 SP2 CU7 7/20/2015 --- 11.0.5634 SP2 CU8 9/21/2015 --- 11.0.5641 SP2 CU9 11/16/2015 ----> 11.0.6290 SP3 RTM 11/22/2015 --- 11.0.5644 SP2 CU10 1/18/2016 ----> 11.0.6518 SP3 CU1 1/18/2016 --- 11.0.5646 SP2 CU11 3/21/2016 ----> 11.0.6523 SP3 CU2 3/21/2016 --- 11.0.5649 SP2 CU12 5/16/2016 ----> 11.0.6537 SP3 CU3 5/16/2016 - --- How to determine the version, edition and update level of SQL Server and its components --- https://support.microsoft.com/en-us/kb/321185 - --- SQL Server 2012 SP3 build versions --- https://support.microsoft.com/en-us/kb/3133750 - --- SQL Server 2012 SP2 build versions --- http://support.microsoft.com/kb/2983249 - --- The SQL Server 2012 builds that were released after SQL Server 2012 Service Pack 1 was released --- http://support.microsoft.com/kb/2772858 - --- The SQL Server 2012 builds that were released after SQL Server 2012 was released --- http://support.microsoft.com/kb/2692828 - - --- Recommended updates and configuration options for SQL Server 2012 and SQL Server 2014 used with high-performance workloads --- http://support.microsoft.com/kb/2964518/EN-US - --- Performance and Stability Related Fixes in Post-SQL Server 2012 SP3 Builds --- http://www.sqlskills.com/blogs/glenn/performance-and-stability-related-fixes-in-post-sql-server-2012-sp3-builds/ - --- Performance and Stability Related Fixes in Post-SQL Server 2012 SP2 Builds --- http://www.sqlskills.com/blogs/glenn/performance-and-stability-related-fixes-in-post-sql-server-2012-sp2-builds/ - --- Performance and Stability Related Fixes in Post-SQL Server 2012 SP1 Builds --- http://www.sqlskills.com/blogs/glenn/performance-and-stability-related-fixes-in-post-sql-server-2012-sp1-builds-2/ - --- Performance Related Fixes in Post-SQL Server 2012 RTM Builds --- http://www.sqlskills.com/blogs/glenn/performance-related-fixes-in-post-sql-server-2012-rtm-builds/ - - - - --- Get socket, physical core and logical core count from the SQL Server Error log. (Query 2) (Core Counts) --- This query might take a few seconds if you have not recycled your error log recently -EXEC sys.xp_readerrorlog 0, 1, N'detected', N'socket'; - --- This can help you determine the exact core counts used by SQL Server and whether HT is enabled or not --- It can also help you confirm your SQL Server licensing model --- Be on the lookout for this message "using 20 logical processors based on SQL Server licensing" --- which means grandfathered Server/CAL licensing --- This query will return no results if your error log has been recycled since the instance was last started - - - --- Get selected server properties (Query 3) (Server Properties) -SELECT SERVERPROPERTY('MachineName') AS [MachineName], -SERVERPROPERTY('ServerName') AS [ServerName], -SERVERPROPERTY('InstanceName') AS [Instance], -SERVERPROPERTY('IsClustered') AS [IsClustered], -SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS [ComputerNamePhysicalNetBIOS], -SERVERPROPERTY('Edition') AS [Edition], -SERVERPROPERTY('ProductLevel') AS [ProductLevel], -- What servicing branch (RTM/SP/CU) -SERVERPROPERTY('ProductUpdateLevel') AS [ProductUpdateLevel], -- Within a servicing branch, what CU# is applied -SERVERPROPERTY('ProductVersion') AS [ProductVersion], -SERVERPROPERTY('ProductMajorVersion') AS [ProductMajorVersion], -SERVERPROPERTY('ProductMinorVersion') AS [ProductMinorVersion], -SERVERPROPERTY('ProductBuild') AS [ProductBuild], -SERVERPROPERTY('ProductBuildType') AS [ProductBuildType], -- Is this a GDR or OD hotfix (NULL if on a CU build) -SERVERPROPERTY('ProductUpdateReference') AS [ProductUpdateReference], -- KB article number that is applicable for this build -SERVERPROPERTY('ProcessID') AS [ProcessID], -SERVERPROPERTY('Collation') AS [Collation], -SERVERPROPERTY('IsFullTextInstalled') AS [IsFullTextInstalled], -SERVERPROPERTY('IsIntegratedSecurityOnly') AS [IsIntegratedSecurityOnly], -SERVERPROPERTY('FilestreamConfiguredLevel') AS [FilestreamConfiguredLevel], -SERVERPROPERTY('IsHadrEnabled') AS [IsHadrEnabled], -SERVERPROPERTY('HadrManagerStatus') AS [HadrManagerStatus], -SERVERPROPERTY('InstanceDefaultDataPath') AS [InstanceDefaultDataPath], -SERVERPROPERTY('InstanceDefaultLogPath') AS [InstanceDefaultLogPath], -SERVERPROPERTY('BuildClrVersion') AS [Build CLR Version]; - --- This gives you a lot of useful information about your instance of SQL Server, --- such as the ProcessID for SQL Server and your collation --- Note: Some columns will be NULL on older SQL Server builds - - - --- Get instance-level configuration values for instance (Query 4) (Configuration Values) -SELECT name, value, value_in_use, minimum, maximum, [description], is_dynamic, is_advanced -FROM sys.configurations WITH (NOLOCK) -ORDER BY name OPTION (RECOMPILE); - --- Focus on these settings: --- backup compression default (should be 1 in most cases) --- clr enabled (only enable if it is needed) --- cost threshold for parallelism (depends on your workload) --- lightweight pooling (should be zero) --- max degree of parallelism (depends on your workload and hardware) --- max server memory (MB) (set to an appropriate value, not the default) --- optimize for ad hoc workloads (should be 1) --- priority boost (should be zero) --- remote admin connections (should be 1) - - --- Returns a list of all global trace flags that are enabled (Query 5) (Global Trace Flags) -DBCC TRACESTATUS (-1); - --- If no global trace flags are enabled, no results will be returned. --- It is very useful to know what global trace flags are currently enabled as part of the diagnostic process. - --- Common trace flags that should be enabled in most cases --- TF 1118 - Helps alleviate allocation contention in tempdb, SQL Server allocates full extents to each database object, --- thereby eliminating the contention on SGAM pages (more important with older versions of SQL Server) --- Recommendations to reduce allocation contention in SQL Server tempdb database --- http://support2.microsoft.com/kb/2154845 --- TF 3226 - Supresses logging of successful database backup messages to the SQL Server Error Log --- TF 2371 - Lowers auto update statistics threshold for large tables --- http://blogs.msdn.com/b/saponsqlserver/archive/2011/09/07/changes-to-automatic-update-statistics-in-sql-server-traceflag-2371.aspx - - --- SQL Server query optimizer hotfix trace flag 4199 servicing model --- https://support.microsoft.com/en-us/kb/974006 - - - --- SQL Server Process Address space info (Query 6) (Process Memory) --- (shows whether locked pages is enabled, among other things) -SELECT physical_memory_in_use_kb/1024 AS [SQL Server Memory Usage (MB)], - large_page_allocations_kb, locked_page_allocations_kb, page_fault_count, - memory_utilization_percentage, available_commit_limit_kb, - process_physical_memory_low, process_virtual_memory_low -FROM sys.dm_os_process_memory WITH (NOLOCK) OPTION (RECOMPILE); - --- You want to see 0 for process_physical_memory_low --- You want to see 0 for process_virtual_memory_low --- This indicates that you are not under internal memory pressure - - - --- SQL Server Services information (Query 7) (SQL Server Services Info) -SELECT servicename, process_id, startup_type_desc, status_desc, -last_startup_time, service_account, is_clustered, cluster_nodename, [filename] -FROM sys.dm_server_services WITH (NOLOCK) OPTION (RECOMPILE); - --- Tells you the account being used for the SQL Server Service and the SQL Agent Service --- Shows the process_id, when they were last started, and their current status --- Shows whether you are running on a failover cluster instance - - --- Get SQL Server Agent jobs and Category information (Query 8) (SQL Server Agent Jobs) -SELECT sj.name AS [JobName], sj.[description] AS [JobDescription], SUSER_SNAME(sj.owner_sid) AS [JobOwner], -sj.date_created, sj.[enabled], sj.notify_email_operator_id, sj.notify_level_email, sc.name AS [CategoryName], -js.next_run_date, js.next_run_time -FROM msdb.dbo.sysjobs AS sj WITH (NOLOCK) -INNER JOIN msdb.dbo.syscategories AS sc WITH (NOLOCK) -ON sj.category_id = sc.category_id -LEFT OUTER JOIN msdb.dbo.sysjobschedules AS js WITH (NOLOCK) -ON sj.job_id = js.job_id -ORDER BY sj.name OPTION (RECOMPILE); - --- Gives you some basic information about your SQL Server Agent jobs, who owns them and how they are configured --- Look for Agent jobs that are not owned by sa --- Look for jobs that have a notify_email_operator_id set to 0 (meaning no operator) --- Look for jobs that have a notify_level_email set to 0 (meaning no e-mail is ever sent) --- --- MSDN sysjobs documentation --- http://msdn.microsoft.com/en-us/library/ms189817.aspx - - --- Get SQL Server Agent Alert Information (Query 9) (SQL Server Agent Alerts) -SELECT name, event_source, message_id, severity, [enabled], has_notification, - delay_between_responses, occurrence_count, last_occurrence_date, last_occurrence_time -FROM msdb.dbo.sysalerts WITH (NOLOCK) -ORDER BY name OPTION (RECOMPILE); - --- Gives you some basic information about your SQL Server Agent Alerts (which are different from SQL Server Agent jobs) --- Read more about Agent Alerts here: http://www.sqlskills.com/blogs/glenn/creating-sql-server-agent-alerts-for-critical-errors/ - - - --- Windows information (Query 10) (Windows Info) -SELECT windows_release, windows_service_pack_level, - windows_sku, os_language_version -FROM sys.dm_os_windows_info WITH (NOLOCK) OPTION (RECOMPILE); - --- Gives you major OS version, Service Pack, Edition, and language info for the operating system --- 6.3 is either Windows 10, 8.1 or Windows Server 2012 R2 --- 6.2 is either Windows 8 or Windows Server 2012 --- 6.1 is either Windows 7 or Windows Server 2008 R2 --- 6.0 is either Windows Vista or Windows Server 2008 - --- Windows SKU codes --- 4 is Enterprise Edition --- 7 is Standard Server Edition --- 8 is Datacenter Server Edition --- 10 is Enterprise Server Edition --- 48 is Professional Edition - --- 1033 for os_language_version is US-English - --- SQL Server 2012 requires Windows Server 2008 SP2 or newer - --- Hardware and Software Requirements for Installing SQL Server 2012 --- http://msdn.microsoft.com/en-us/library/ms143506.aspx - --- Using SQL Server in Windows 8, Windows 8.1, Windows Server 2012 and Windows Server 2012 R2 environments --- http://support.microsoft.com/kb/2681562 - - --- SQL Server NUMA Node information (Query 11) (SQL Server NUMA Info) -SELECT node_id, node_state_desc, memory_node_id, processor_group, online_scheduler_count, - active_worker_count, avg_load_balance, resource_monitor_state -FROM sys.dm_os_nodes WITH (NOLOCK) -WHERE node_state_desc <> N'ONLINE DAC' OPTION (RECOMPILE); - --- Gives you some useful information about the composition and relative load on your NUMA nodes --- You want to see an equal number of schedulers on each NUMA node --- Watch out if SQL Server 2012 Standard Edition has been installed on a machine with more than 16 physical cores - --- Balancing Your Available SQL Server Core Licenses Evenly Across NUMA Nodes --- http://www.sqlskills.com/blogs/glenn/balancing-your-available-sql-server-core-licenses-evenly-across-numa-nodes/ - - - --- Good basic information about OS memory amounts and state (Query 12) (System Memory) -SELECT total_physical_memory_kb/1024 AS [Physical Memory (MB)], - available_physical_memory_kb/1024 AS [Available Memory (MB)], - total_page_file_kb/1024 AS [Total Page File (MB)], - available_page_file_kb/1024 AS [Available Page File (MB)], - system_cache_kb/1024 AS [System Cache (MB)], - system_memory_state_desc AS [System Memory State] -FROM sys.dm_os_sys_memory WITH (NOLOCK) OPTION (RECOMPILE); - --- You want to see "Available physical memory is high" for System Memory State --- This indicates that you are not under external memory pressure - - --- You can skip the next three queries if you know you don't --- have a clustered instance - - --- Shows you where the SQL Server failover cluster diagnostic log is located and how it is configured (Query 13) (SQL Server Error Log) -SELECT is_enabled, [path], max_size, max_files -FROM sys.dm_os_server_diagnostics_log_configurations WITH (NOLOCK) OPTION (RECOMPILE); - --- Knowing this information is important for troubleshooting purposes --- Also shows you the location of other error and diagnostic log files - - --- Get information about your cluster nodes and their status (Query 14) (Cluster Node Properties) --- (if your database server is in a failover cluster) -SELECT NodeName, status_description, is_current_owner -FROM sys.dm_os_cluster_nodes WITH (NOLOCK) OPTION (RECOMPILE); - --- Knowing which node owns the cluster resources is critical --- Especially when you are installing Windows or SQL Server updates --- You will see no results if your instance is not clustered - - --- Get information about any AlwaysOn AG cluster this instance is a part of (Query 15) (AlwaysOn AG Cluster) -SELECT cluster_name, quorum_type_desc, quorum_state_desc -FROM sys.dm_hadr_cluster WITH (NOLOCK) OPTION (RECOMPILE); - --- You will see no results if your instance is not using AlwaysOn AGs - --- Recommended hotfixes and updates for Windows Server 2012 R2-based failover clusters --- http://support.microsoft.com/kb/2920151 - - --- Hardware information from SQL Server 2012 (Query 16) (Hardware Info) -SELECT cpu_count AS [Logical CPU Count], scheduler_count, hyperthread_ratio AS [Hyperthread Ratio], -cpu_count/hyperthread_ratio AS [Physical CPU Count], -physical_memory_kb/1024 AS [Physical Memory (MB)], committed_kb/1024 AS [Committed Memory (MB)], -committed_target_kb/1024 AS [Committed Target Memory (MB)], -max_workers_count AS [Max Workers Count], affinity_type_desc AS [Affinity Type], -sqlserver_start_time AS [SQL Server Start Time], virtual_machine_type_desc AS [Virtual Machine Type] -FROM sys.dm_os_sys_info WITH (NOLOCK) OPTION (RECOMPILE); - --- Gives you some good basic hardware information about your database server --- Cannot distinguish between HT and multi-core --- Note: virtual_machine_type_desc of HYPERVISOR does not automatically mean you are running SQL Server inside of a VM --- It merely indicates that you have a hypervisor running on your host - - --- Get System Manufacturer and model number from SQL Server Error log (Query 17) (System Manufacturer) -EXEC sys.xp_readerrorlog 0, 1, N'Manufacturer'; - --- This can help you determine the capabilities and capacities of your database server --- Can also be used to confirm if you are running in a VM --- This query might take a few seconds if you have not recycled your error log recently --- This query will return no results if your error log has been recycled since the instance was started - - --- Get processor description from Windows Registry (Query 18) (Processor Description) -EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\CentralProcessor\0', N'ProcessorNameString'; - --- Gives you the model number and rated clock speed of your processor(s) --- Your processors may be running at less than the rated clock speed due --- to the Windows Power Plan or hardware power management - --- You can use CPU-Z to get your actual CPU core speed and a lot of other useful information --- http://www.cpuid.com/softwares/cpu-z.html - --- You can learn more about processor selection for SQL Server by following this link --- http://www.sqlskills.com/blogs/glenn/processor-selection-for-sql-server/ - - - --- Get information on location, time and size of any memory dumps from SQL Server (Query 19) (Memory Dump Info) -SELECT [filename], creation_time, size_in_bytes/1048576.0 AS [Size (MB)] -FROM sys.dm_server_memory_dumps WITH (NOLOCK) -ORDER BY creation_time DESC OPTION (RECOMPILE); - --- This will not return any rows if you have --- not had any memory dumps (which is a good thing) - - --- File names and paths for all user and system databases on instance (Query 20) (Database Filenames and Paths) -SELECT DB_NAME([database_id]) AS [Database Name], - [file_id], name, physical_name, type_desc, state_desc, - is_percent_growth, growth, - CONVERT(bigint, growth/128.0) AS [Growth in MB], - CONVERT(bigint, size/128.0) AS [Total Size in MB] -FROM sys.master_files WITH (NOLOCK) -ORDER BY DB_NAME([database_id]) OPTION (RECOMPILE); - --- Things to look at: --- Are data files and log files on different drives? --- Is everything on the C: drive? --- Is TempDB on dedicated drives? --- Is there only one TempDB data file? --- Are all of the TempDB data files the same size? --- Are there multiple data files for user databases? --- Is percent growth enabled for any files (which is bad)? - - --- Volume info for all LUNS that have database files on the current instance (Query 21) (Volume Info) -SELECT DISTINCT vs.volume_mount_point, vs.file_system_type, -vs.logical_volume_name, CONVERT(DECIMAL(18,2),vs.total_bytes/1073741824.0) AS [Total Size (GB)], -CONVERT(DECIMAL(18,2), vs.available_bytes/1073741824.0) AS [Available Size (GB)], -CONVERT(DECIMAL(18,2), vs.available_bytes * 1. / vs.total_bytes * 100.) AS [Space Free %] -FROM sys.master_files AS f WITH (NOLOCK) -CROSS APPLY sys.dm_os_volume_stats(f.database_id, f.[file_id]) AS vs -ORDER BY vs.volume_mount_point OPTION (RECOMPILE); - --- Shows you the total and free space on the LUNs where you have database files --- Being low on free space can negatively affect performance - - - --- Drive level latency information (Query 22) (Drive Level Latency) --- Based on code from Jimmy May -SELECT tab.[Drive], tab.volume_mount_point AS [Volume Mount Point], - CASE - WHEN num_of_reads = 0 THEN 0 - ELSE (io_stall_read_ms/num_of_reads) - END AS [Read Latency], - CASE - WHEN num_of_writes = 0 THEN 0 - ELSE (io_stall_write_ms/num_of_writes) - END AS [Write Latency], - CASE - WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 - ELSE (io_stall/(num_of_reads + num_of_writes)) - END AS [Overall Latency], - CASE - WHEN num_of_reads = 0 THEN 0 - ELSE (num_of_bytes_read/num_of_reads) - END AS [Avg Bytes/Read], - CASE - WHEN num_of_writes = 0 THEN 0 - ELSE (num_of_bytes_written/num_of_writes) - END AS [Avg Bytes/Write], - CASE - WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 - ELSE ((num_of_bytes_read + num_of_bytes_written)/(num_of_reads + num_of_writes)) - END AS [Avg Bytes/Transfer] -FROM (SELECT LEFT(UPPER(mf.physical_name), 2) AS Drive, SUM(num_of_reads) AS num_of_reads, - SUM(io_stall_read_ms) AS io_stall_read_ms, SUM(num_of_writes) AS num_of_writes, - SUM(io_stall_write_ms) AS io_stall_write_ms, SUM(num_of_bytes_read) AS num_of_bytes_read, - SUM(num_of_bytes_written) AS num_of_bytes_written, SUM(io_stall) AS io_stall, vs.volume_mount_point - FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS vfs - INNER JOIN sys.master_files AS mf WITH (NOLOCK) - ON vfs.database_id = mf.database_id AND vfs.file_id = mf.file_id - CROSS APPLY sys.dm_os_volume_stats(mf.database_id, mf.[file_id]) AS vs - GROUP BY LEFT(UPPER(mf.physical_name), 2), vs.volume_mount_point) AS tab -ORDER BY [Overall Latency] OPTION (RECOMPILE); - --- Shows you the drive-level latency for reads and writes, in milliseconds --- Latency above 20-25ms is usually a problem - - --- Calculates average stalls per read, per write, and per total input/output for each database file (Query 23) (IO Stalls by File) -SELECT DB_NAME(fs.database_id) AS [Database Name], CAST(fs.io_stall_read_ms/(1.0 + fs.num_of_reads) AS NUMERIC(10,1)) AS [avg_read_stall_ms], -CAST(fs.io_stall_write_ms/(1.0 + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_write_stall_ms], -CAST((fs.io_stall_read_ms + fs.io_stall_write_ms)/(1.0 + fs.num_of_reads + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_io_stall_ms], -CONVERT(DECIMAL(18,2), mf.size/128.0) AS [File Size (MB)], mf.physical_name, mf.type_desc, fs.io_stall_read_ms, fs.num_of_reads, -fs.io_stall_write_ms, fs.num_of_writes, fs.io_stall_read_ms + fs.io_stall_write_ms AS [io_stalls], fs.num_of_reads + fs.num_of_writes AS [total_io] -FROM sys.dm_io_virtual_file_stats(null,null) AS fs -INNER JOIN sys.master_files AS mf WITH (NOLOCK) -ON fs.database_id = mf.database_id -AND fs.[file_id] = mf.[file_id] -ORDER BY avg_io_stall_ms DESC OPTION (RECOMPILE); - --- Helps determine which database files on the entire instance have the most I/O bottlenecks --- This can help you decide whether certain LUNs are overloaded and whether you might --- want to move some files to a different location or perhaps improve your I/O performance - - --- Look for I/O requests taking longer than 15 seconds in the five most recent SQL Server Error Logs (Query 24) (IO Warnings) -CREATE TABLE #IOWarningResults(LogDate datetime, ProcessInfo sysname, LogText nvarchar(1000)); - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 0, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 1, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 2, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 3, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 4, 1, N'taking longer than 15 seconds'; - -SELECT LogDate, ProcessInfo, LogText -FROM #IOWarningResults -ORDER BY LogDate DESC; - -DROP TABLE #IOWarningResults; - --- Finding 15 second I/O warnings in the SQL Server Error Log is useful evidence of --- poor I/O performance (which might have many different causes) - --- Diagnostics in SQL Server help detect stalled and stuck I/O operations --- https://support.microsoft.com/en-us/kb/897284 - - - --- Recovery model, log reuse wait description, log file size, log usage size (Query 25) (Database Properties) --- and compatibility level for all databases on instance -SELECT db.[name] AS [Database Name], db.recovery_model_desc AS [Recovery Model], db.state_desc, db.containment_desc, -db.log_reuse_wait_desc AS [Log Reuse Wait Description], -CONVERT(DECIMAL(18,2), ls.cntr_value/1024.0) AS [Log Size (MB)], CONVERT(DECIMAL(18,2), lu.cntr_value/1024.0) AS [Log Used (MB)], -CAST(CAST(lu.cntr_value AS FLOAT) / CAST(ls.cntr_value AS FLOAT)AS DECIMAL(18,2)) * 100 AS [Log Used %], -db.[compatibility_level] AS [DB Compatibility Level], -db.page_verify_option_desc AS [Page Verify Option], db.is_auto_create_stats_on, db.is_auto_update_stats_on, -db.is_auto_update_stats_async_on, db.is_parameterization_forced, -db.snapshot_isolation_state_desc, db.is_read_committed_snapshot_on, -db.is_auto_close_on, db.is_auto_shrink_on, db.target_recovery_time_in_seconds, db.is_cdc_enabled, -db.is_published, db.group_database_id, db.replica_id -FROM sys.databases AS db WITH (NOLOCK) -INNER JOIN sys.dm_os_performance_counters AS lu WITH (NOLOCK) -ON db.name = lu.instance_name -INNER JOIN sys.dm_os_performance_counters AS ls WITH (NOLOCK) -ON db.name = ls.instance_name -WHERE lu.counter_name LIKE N'Log File(s) Used Size (KB)%' -AND ls.counter_name LIKE N'Log File(s) Size (KB)%' -AND ls.cntr_value > 0 OPTION (RECOMPILE); - --- Things to look at: --- How many databases are on the instance? --- What recovery models are they using? --- What is the log reuse wait description? --- How full are the transaction logs? --- What compatibility level are the databases on? --- What is the Page Verify Option? (should be CHECKSUM) --- Is Auto Update Statistics Asynchronously enabled? --- Make sure auto_shrink and auto_close are not enabled! - - - --- Missing Indexes for all databases by Index Advantage (Query 26) (Missing Indexes All Databases) -SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], -migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], -mid.equality_columns, mid.inequality_columns, mid.included_columns, -migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact -FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) -INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) -ON migs.group_handle = mig.index_group_handle -INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) -ON mig.index_handle = mid.index_handle -ORDER BY index_advantage DESC OPTION (RECOMPILE); - --- Getting missing index information for all of the databases on the instance is very useful --- Look at last user seek time, number of user seeks to help determine source and importance --- Also look at avg_user_impact and avg_total_user_cost to help determine importance --- SQL Server is overly eager to add included columns, so beware --- Do not just blindly add indexes that show up from this query!!! - - - --- Get VLF Counts for all databases on the instance (Query 27) (VLF Counts) --- (adapted from Michelle Ufford) -CREATE TABLE #VLFInfo (RecoveryUnitID int, FileID int, - FileSize bigint, StartOffset bigint, - FSeqNo bigint, [Status] bigint, - Parity bigint, CreateLSN numeric(38)); - -CREATE TABLE #VLFCountResults(DatabaseName sysname, VLFCount int); - -EXEC sp_MSforeachdb N'Use [?]; - - INSERT INTO #VLFInfo - EXEC sp_executesql N''DBCC LOGINFO([?])''; - - INSERT INTO #VLFCountResults - SELECT DB_NAME(), COUNT(*) - FROM #VLFInfo; - - TRUNCATE TABLE #VLFInfo;' - -SELECT DatabaseName, VLFCount -FROM #VLFCountResults -ORDER BY VLFCount DESC; - -DROP TABLE #VLFInfo; -DROP TABLE #VLFCountResults; - --- High VLF counts can affect write performance --- and they can make full database restores and recovery take much longer --- Try to keep your VLF counts under 200 in most cases - - - --- Get CPU utilization by database (Query 28) (CPU Usage by Database) -WITH DB_CPU_Stats -AS -(SELECT pa.DatabaseID, DB_Name(pa.DatabaseID) AS [Database Name], SUM(qs.total_worker_time/1000) AS [CPU_Time_Ms] - FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) - CROSS APPLY (SELECT CONVERT(int, value) AS [DatabaseID] - FROM sys.dm_exec_plan_attributes(qs.plan_handle) - WHERE attribute = N'dbid') AS pa - GROUP BY DatabaseID) -SELECT ROW_NUMBER() OVER(ORDER BY [CPU_Time_Ms] DESC) AS [CPU Rank], - [Database Name], [CPU_Time_Ms] AS [CPU Time (ms)], - CAST([CPU_Time_Ms] * 1.0 / SUM([CPU_Time_Ms]) OVER() * 100.0 AS DECIMAL(5, 2)) AS [CPU Percent] -FROM DB_CPU_Stats -WHERE DatabaseID <> 32767 -- ResourceDB -ORDER BY [CPU Rank] OPTION (RECOMPILE); - --- Helps determine which database is using the most CPU resources on the instance - - --- Get I/O utilization by database (Query 29) (IO Usage By Database) -WITH Aggregate_IO_Statistics -AS -(SELECT DB_NAME(database_id) AS [Database Name], -CAST(SUM(num_of_bytes_read + num_of_bytes_written)/1048576 AS DECIMAL(12, 2)) AS io_in_mb -FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS [DM_IO_STATS] -GROUP BY database_id) -SELECT ROW_NUMBER() OVER(ORDER BY io_in_mb DESC) AS [I/O Rank], [Database Name], io_in_mb AS [Total I/O (MB)], - CAST(io_in_mb/ SUM(io_in_mb) OVER() * 100.0 AS DECIMAL(5,2)) AS [I/O Percent] -FROM Aggregate_IO_Statistics -ORDER BY [I/O Rank] OPTION (RECOMPILE); - --- Helps determine which database is using the most I/O resources on the instance - - --- Get total buffer usage by database for current instance (Query 30) (Total Buffer Usage by Database) --- This make take some time to run on a busy instance -WITH AggregateBufferPoolUsage -AS -(SELECT DB_NAME(database_id) AS [Database Name], -CAST(COUNT(*) * 8/1024.0 AS DECIMAL (10,2)) AS [CachedSize] -FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) -WHERE database_id <> 32767 -- ResourceDB -GROUP BY DB_NAME(database_id)) -SELECT ROW_NUMBER() OVER(ORDER BY CachedSize DESC) AS [Buffer Pool Rank], [Database Name], CachedSize AS [Cached Size (MB)], - CAST(CachedSize / SUM(CachedSize) OVER() * 100.0 AS DECIMAL(5,2)) AS [Buffer Pool Percent] -FROM AggregateBufferPoolUsage -ORDER BY [Buffer Pool Rank] OPTION (RECOMPILE); - --- Tells you how much memory (in the buffer pool) --- is being used by each database on the instance - - --- Clear Wait Stats with this command --- DBCC SQLPERF('sys.dm_os_wait_stats', CLEAR); - --- Isolate top waits for server instance since last restart or wait statistics clear (Query 31) (Top Waits) -WITH [Waits] -AS (SELECT wait_type, wait_time_ms/ 1000.0 AS [WaitS], - (wait_time_ms - signal_wait_time_ms) / 1000.0 AS [ResourceS], - signal_wait_time_ms / 1000.0 AS [SignalS], - waiting_tasks_count AS [WaitCount], - 100.0 * wait_time_ms / SUM (wait_time_ms) OVER() AS [Percentage], - ROW_NUMBER() OVER(ORDER BY wait_time_ms DESC) AS [RowNum] - FROM sys.dm_os_wait_stats WITH (NOLOCK) - WHERE [wait_type] NOT IN ( - N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', - N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', - N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', - N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', - N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', - N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', - N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', - N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', - N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', - N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', - N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', - N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', - N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', - N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', - N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', - N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', - N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', - N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', - N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') - AND waiting_tasks_count > 0) -SELECT - MAX (W1.wait_type) AS [WaitType], - CAST (MAX (W1.WaitS) AS DECIMAL (16,2)) AS [Wait_Sec], - CAST (MAX (W1.ResourceS) AS DECIMAL (16,2)) AS [Resource_Sec], - CAST (MAX (W1.SignalS) AS DECIMAL (16,2)) AS [Signal_Sec], - MAX (W1.WaitCount) AS [Wait Count], - CAST (MAX (W1.Percentage) AS DECIMAL (5,2)) AS [Wait Percentage], - CAST ((MAX (W1.WaitS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgWait_Sec], - CAST ((MAX (W1.ResourceS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgRes_Sec], - CAST ((MAX (W1.SignalS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgSig_Sec] -FROM Waits AS W1 -INNER JOIN Waits AS W2 -ON W2.RowNum <= W1.RowNum -GROUP BY W1.RowNum -HAVING SUM (W2.Percentage) - MAX (W1.Percentage) < 99 -- percentage threshold -OPTION (RECOMPILE); - --- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure - --- SQL Server Wait Types Library (Paul Randal) --- https://www.sqlskills.com/help/waits/ - --- The SQL Server Wait Type Repository --- http://blogs.msdn.com/b/psssql/archive/2009/11/03/the-sql-server-wait-type-repository.aspx - --- Wait statistics, or please tell me where it hurts --- http://www.sqlskills.com/blogs/paul/wait-statistics-or-please-tell-me-where-it-hurts/ - --- SQL Server 2005 Performance Tuning using the Waits and Queues --- http://technet.microsoft.com/en-us/library/cc966413.aspx - --- sys.dm_os_wait_stats (Transact-SQL) --- http://msdn.microsoft.com/en-us/library/ms179984(v=sql.120).aspx - - - --- Get a count of SQL connections by IP address (Query 32) (Connection Counts by IP Address) -SELECT ec.client_net_address, es.[program_name], es.[host_name], es.login_name, -COUNT(ec.session_id) AS [connection count] -FROM sys.dm_exec_sessions AS es WITH (NOLOCK) -INNER JOIN sys.dm_exec_connections AS ec WITH (NOLOCK) -ON es.session_id = ec.session_id -GROUP BY ec.client_net_address, es.[program_name], es.[host_name], es.login_name -ORDER BY ec.client_net_address, es.[program_name] OPTION (RECOMPILE); - --- This helps you figure where your database load is coming from --- and verifies connectivity from other machines - - --- Get Average Task Counts (run multiple times) (Query 33) (Avg Task Counts) -SELECT AVG(current_tasks_count) AS [Avg Task Count], -AVG(work_queue_count) AS [Avg Work Queue Count], -AVG(runnable_tasks_count) AS [Avg Runnable Task Count], -AVG(pending_disk_io_count) AS [Avg Pending DiskIO Count] -FROM sys.dm_os_schedulers WITH (NOLOCK) -WHERE scheduler_id < 255 OPTION (RECOMPILE); - --- Sustained values above 10 suggest further investigation in that area --- High Avg Task Counts are often caused by blocking/deadlocking or other resource contention - --- Sustained values above 1 suggest further investigation in that area --- High Avg Runnable Task Counts are a good sign of CPU pressure --- High Avg Pending DiskIO Counts are a sign of disk pressure - - --- Detect blocking (run multiple times) (Query 34) (Detect Blocking) -SELECT t1.resource_type AS [lock type], DB_NAME(resource_database_id) AS [database], -t1.resource_associated_entity_id AS [blk object],t1.request_mode AS [lock req], --- lock requested -t1.request_session_id AS [waiter sid], t2.wait_duration_ms AS [wait time], -- spid of waiter -(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK) -- get sql for waiter -CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) -WHERE r.session_id = t1.request_session_id) AS [waiter_batch], -(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, - (CASE WHEN r.statement_end_offset = -1 - THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 - ELSE r.statement_end_offset END - r.statement_start_offset)/2) -FROM sys.dm_exec_requests AS r WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt -WHERE r.session_id = t1.request_session_id) AS [waiter_stmt], -- statement blocked -t2.blocking_session_id AS [blocker sid], -- spid of blocker -(SELECT [text] FROM sys.sysprocesses AS p -- get sql for blocker -CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) -WHERE p.spid = t2.blocking_session_id) AS [blocker_batch] -FROM sys.dm_tran_locks AS t1 WITH (NOLOCK) -INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK) -ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE); - --- Helps troubleshoot blocking and deadlocking issues --- The results will change from second to second on a busy system --- You should run this query multiple times when you see signs of blocking - - - --- Get CPU Utilization History for last 256 minutes (in one minute intervals) (Query 35) (CPU Utilization History) --- This version works with SQL Server 2012 -DECLARE @ts_now bigint = (SELECT cpu_ticks/(cpu_ticks/ms_ticks) FROM sys.dm_os_sys_info WITH (NOLOCK)); - -SELECT TOP(256) SQLProcessUtilization AS [SQL Server Process CPU Utilization], - SystemIdle AS [System Idle Process], - 100 - SystemIdle - SQLProcessUtilization AS [Other Process CPU Utilization], - DATEADD(ms, -1 * (@ts_now - [timestamp]), GETDATE()) AS [Event Time] -FROM (SELECT record.value('(./Record/@id)[1]', 'int') AS record_id, - record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') - AS [SystemIdle], - record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', 'int') - AS [SQLProcessUtilization], [timestamp] - FROM (SELECT [timestamp], CONVERT(xml, record) AS [record] - FROM sys.dm_os_ring_buffers WITH (NOLOCK) - WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' - AND record LIKE N'%%') AS x) AS y -ORDER BY record_id DESC OPTION (RECOMPILE); - --- Look at the trend over the entire period. --- Also look at high sustained Other Process CPU Utilization values - - - --- Get top total worker time queries for entire instance (Query 36) (Top Worker Time Queries) -SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], LEFT(t.[text], 50) AS [Short Query Text], -qs.total_worker_time AS [Total Worker Time], qs.min_worker_time AS [Min Worker Time], -qs.total_worker_time/qs.execution_count AS [Avg Worker Time], -qs.max_worker_time AS [Max Worker Time], -qs.min_elapsed_time AS [Min Elapsed Time], -qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], -qs.max_elapsed_time AS [Max Elapsed Time], -qs.min_logical_reads AS [Min Logical Reads], -qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], -qs.max_logical_reads AS [Max Logical Reads], -qs.execution_count AS [Execution Count], qs.creation_time AS [Creation Time] ---,t.[text] AS [Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t -CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp -ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); - - --- Helps you find the most expensive queries from a CPU perspective across the entire instance --- Can also help track down parameter sniffing issues - - - --- Page Life Expectancy (PLE) value for each NUMA node in current instance (Query 37) (PLE by NUMA Node) -SELECT @@SERVERNAME AS [Server Name], [object_name], instance_name, cntr_value AS [Page Life Expectancy] -FROM sys.dm_os_performance_counters WITH (NOLOCK) -WHERE [object_name] LIKE N'%Buffer Node%' -- Handles named instances -AND counter_name = N'Page life expectancy' OPTION (RECOMPILE); - --- PLE is a good measurement of memory pressure --- Higher PLE is better. Watch the trend over time, not the absolute value --- This will only return one row for non-NUMA systems - --- Page Life Expectancy isnt what you think --- http://www.sqlskills.com/blogs/paul/page-life-expectancy-isnt-what-you-think/ - - --- Memory Grants Pending value for current instance (Query 38) (Memory Grants Pending) -SELECT @@SERVERNAME AS [Server Name], [object_name], cntr_value AS [Memory Grants Pending] -FROM sys.dm_os_performance_counters WITH (NOLOCK) -WHERE [object_name] LIKE N'%Memory Manager%' -- Handles named instances -AND counter_name = N'Memory Grants Pending' OPTION (RECOMPILE); - --- Memory Grants Pending above zero for a sustained period is a very strong indicator of memory pressure - - --- Memory Clerk Usage for instance (Query 39) (Memory Clerk Usage) --- Look for high value for CACHESTORE_SQLCP (Ad-hoc query plans) -SELECT TOP(10) mc.[type] AS [Memory Clerk Type], - CAST((SUM(mc.pages_kb)/1024.0) AS DECIMAL (15,2)) AS [Memory Usage (MB)] -FROM sys.dm_os_memory_clerks AS mc WITH (NOLOCK) -GROUP BY mc.[type] -ORDER BY SUM(mc.pages_kb) DESC OPTION (RECOMPILE); - --- MEMORYCLERK_SQLBUFFERPOOL is new for SQL Server 2012. It should be your highest consumer of memory - --- CACHESTORE_SQLCP SQL Plans --- These are cached SQL statements or batches that aren't in stored procedures, functions and triggers --- Watch out for high values for CACHESTORE_SQLCP - --- CACHESTORE_OBJCP Object Plans --- These are compiled plans for stored procedures, functions and triggers - - - --- Find single-use, ad-hoc and prepared queries that are bloating the plan cache (Query 40) (Ad hoc Queries) -SELECT TOP(50) [text] AS [QueryText], cp.cacheobjtype, cp.objtype, cp.size_in_bytes/1024 AS [Plan Size in KB] -FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) -WHERE cp.cacheobjtype = N'Compiled Plan' -AND cp.objtype IN (N'Adhoc', N'Prepared') -AND cp.usecounts = 1 -ORDER BY cp.size_in_bytes DESC OPTION (RECOMPILE); - --- Gives you the text, type and size of single-use ad-hoc and prepared queries that waste space in the plan cache --- Enabling 'optimize for ad hoc workloads' for the instance can help (SQL Server 2008 and above only) --- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this --- Enabling forced parameterization for the database can help, but test first! - --- Plan cache, adhoc workloads and clearing the single-use plan cache bloat --- http://www.sqlskills.com/blogs/kimberly/plan-cache-adhoc-workloads-and-clearing-the-single-use-plan-cache-bloat/ - - --- Get top total logical reads queries for entire instance (Query 41) (Top Logical Reads Queries) -SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], LEFT(t.[text], 50) AS [Short Query Text], -qs.total_logical_reads AS [Total Logical Reads], -qs.min_logical_reads AS [Min Logical Reads], -qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], -qs.max_logical_reads AS [Max Logical Reads], -qs.min_worker_time AS [Min Worker Time], -qs.total_worker_time/qs.execution_count AS [Avg Worker Time], -qs.max_worker_time AS [Max Worker Time], -qs.min_elapsed_time AS [Min Elapsed Time], -qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], -qs.max_elapsed_time AS [Max Elapsed Time], -qs.execution_count AS [Execution Count], qs.creation_time AS [Creation Time] ---,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t -CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp -ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); - - --- Helps you find the most expensive queries from a memory perspective across the entire instance --- Can also help track down parameter sniffing issues - - - - - - - - - --- Database specific queries ***************************************************************** - --- **** Switch to a user database that you are interested in ***** -USE YourDatabaseName; -- make sure to change to an actual database on your instance, not the master system database -GO - --- Individual File Sizes and space available for current database (Query 42) (File Sizes and Space) -SELECT f.name AS [File Name] , f.physical_name AS [Physical Name], -CAST((f.size/128.0) AS DECIMAL(15,2)) AS [Total Size in MB], -CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) -AS [Available Space In MB], f.[file_id], fg.name AS [Filegroup Name], -f.is_percent_growth, f.growth, -fg.is_default, fg.is_read_only -FROM sys.database_files AS f WITH (NOLOCK) -LEFT OUTER JOIN sys.filegroups AS fg WITH (NOLOCK) -ON f.data_space_id = fg.data_space_id -ORDER BY f.[file_id] OPTION (RECOMPILE); - --- Look at how large and how full the files are and where they are located --- Make sure the transaction log is not full!! - - - --- I/O Statistics by file for the current database (Query 43) (IO Stats By File) -SELECT DB_NAME(DB_ID()) AS [Database Name], df.name AS [Logical Name], vfs.[file_id], df.type_desc, -df.physical_name AS [Physical Name], CAST(vfs.size_on_disk_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Size on Disk (MB)], -vfs.num_of_reads, vfs.num_of_writes, vfs.io_stall_read_ms, vfs.io_stall_write_ms, -CAST(100. * vfs.io_stall_read_ms/(vfs.io_stall_read_ms + vfs.io_stall_write_ms) AS DECIMAL(10,1)) AS [IO Stall Reads Pct], -CAST(100. * vfs.io_stall_write_ms/(vfs.io_stall_write_ms + vfs.io_stall_read_ms) AS DECIMAL(10,1)) AS [IO Stall Writes Pct], -(vfs.num_of_reads + vfs.num_of_writes) AS [Writes + Reads], -CAST(vfs.num_of_bytes_read/1048576.0 AS DECIMAL(10, 2)) AS [MB Read], -CAST(vfs.num_of_bytes_written/1048576.0 AS DECIMAL(10, 2)) AS [MB Written], -CAST(100. * vfs.num_of_reads/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Reads Pct], -CAST(100. * vfs.num_of_writes/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Write Pct], -CAST(100. * vfs.num_of_bytes_read/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Read Bytes Pct], -CAST(100. * vfs.num_of_bytes_written/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Written Bytes Pct] -FROM sys.dm_io_virtual_file_stats(DB_ID(), NULL) AS vfs -INNER JOIN sys.database_files AS df WITH (NOLOCK) -ON vfs.[file_id]= df.[file_id] OPTION (RECOMPILE); - --- This helps you characterize your workload better from an I/O perspective for this database --- It helps you determine whether you has an OLTP or DW/DSS type of workload - - - --- Get most frequently executed queries for this database (Query 44) (Query Execution Counts) -SELECT TOP(50) LEFT(t.[text], 50) AS [Short Query Text], qs.execution_count AS [Execution Count], -qs.total_logical_reads AS [Total Logical Reads], -qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], -qs.total_worker_time AS [Total Worker Time], -qs.total_worker_time/qs.execution_count AS [Avg Worker Time], -qs.total_elapsed_time AS [Total Elapsed Time], -qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], -qs.creation_time AS [Creation Time] ---,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t -CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp -WHERE t.dbid = DB_ID() -ORDER BY qs.execution_count DESC OPTION (RECOMPILE); - - - --- Top Cached SPs By Execution Count (Query 45) (SP Execution Counts) -SELECT TOP(100) p.name AS [SP Name], qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.total_worker_time AS [TotalWorkerTime], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY qs.execution_count DESC OPTION (RECOMPILE); - --- Tells you which cached stored procedures are called the most often --- This helps you characterize and baseline your workload - - --- Top Cached SPs By Avg Elapsed Time (Query 46) (SP Avg Elapsed Time) -SELECT TOP(25) p.name AS [SP Name], qs.min_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.max_elapsed_time, qs.last_elapsed_time, qs.total_elapsed_time, qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], -qs.total_worker_time AS [TotalWorkerTime], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); - --- This helps you find high average elapsed time cached stored procedures that --- may be easy to optimize with standard query tuning techniques - - - --- Top Cached SPs By Total Worker time. Worker time relates to CPU cost (Query 47) (SP Worker Time) -SELECT TOP(25) p.name AS [SP Name], qs.total_worker_time AS [TotalWorkerTime], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count -AS [avg_elapsed_time], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a CPU perspective --- You should look at this if you see signs of CPU pressure - - --- Top Cached SPs By Total Logical Reads. Logical reads relate to memory pressure (Query 48) (SP Logical Reads) -SELECT TOP(25) p.name AS [SP Name], qs.total_logical_reads AS [TotalLogicalReads], -qs.total_logical_reads/qs.execution_count AS [AvgLogicalReads],qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count -AS [avg_elapsed_time], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a memory perspective --- You should look at this if you see signs of memory pressure - - --- Top Cached SPs By Total Physical Reads. Physical reads relate to disk read I/O pressure (Query 49) (SP Physical Reads) -SELECT TOP(25) p.name AS [SP Name],qs.total_physical_reads AS [TotalPhysicalReads], -qs.total_physical_reads/qs.execution_count AS [AvgPhysicalReads], qs.execution_count, -qs.total_logical_reads,qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count -AS [avg_elapsed_time], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -AND qs.total_physical_reads > 0 -ORDER BY qs.total_physical_reads DESC, qs.total_logical_reads DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a read I/O perspective --- You should look at this if you see signs of I/O pressure or of memory pressure - - - --- Top Cached SPs By Total Logical Writes (Query 50) (SP Logical Writes) --- Logical writes relate to both memory and disk I/O pressure -SELECT TOP(25) p.name AS [SP Name], qs.total_logical_writes AS [TotalLogicalWrites], -qs.total_logical_writes/qs.execution_count AS [AvgLogicalWrites], qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -AND qs.total_logical_writes > 0 -ORDER BY qs.total_logical_writes DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a write I/O perspective --- You should look at this if you see signs of I/O pressure or of memory pressure - - --- Lists the top statements by average input/output usage for the current database (Query 51) (Top IO Statements) -SELECT TOP(50) OBJECT_NAME(qt.objectid, dbid) AS [SP Name], -(qs.total_logical_reads + qs.total_logical_writes) /qs.execution_count AS [Avg IO], qs.execution_count AS [Execution Count], -SUBSTRING(qt.[text],qs.statement_start_offset/2, - (CASE - WHEN qs.statement_end_offset = -1 - THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 - ELSE qs.statement_end_offset - END - qs.statement_start_offset)/2) AS [Query Text] -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt -WHERE qt.[dbid] = DB_ID() -ORDER BY [Avg IO] DESC OPTION (RECOMPILE); - --- Helps you find the most expensive statements for I/O by SP - - - --- Possible Bad NC Indexes (writes > reads) (Query 52) (Bad NC Indexes) -SELECT OBJECT_NAME(s.[object_id]) AS [Table Name], i.name AS [Index Name], i.index_id, -i.is_disabled, i.is_hypothetical, i.has_filter, i.fill_factor, -user_updates AS [Total Writes], user_seeks + user_scans + user_lookups AS [Total Reads], -user_updates - (user_seeks + user_scans + user_lookups) AS [Difference] -FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON s.[object_id] = i.[object_id] -AND i.index_id = s.index_id -WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 -AND s.database_id = DB_ID() -AND user_updates > (user_seeks + user_scans + user_lookups) -AND i.index_id > 1 -ORDER BY [Difference] DESC, [Total Writes] DESC, [Total Reads] ASC OPTION (RECOMPILE); - --- Look for indexes with high numbers of writes and zero or very low numbers of reads --- Consider your complete workload, and how long your instance has been running --- Investigate further before dropping an index! - - --- Missing Indexes for current database by Index Advantage (Query 53) (Missing Indexes) -SELECT DISTINCT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], -migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], -mid.equality_columns, mid.inequality_columns, mid.included_columns, -migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact, -OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows] -FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) -INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) -ON migs.group_handle = mig.index_group_handle -INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) -ON mig.index_handle = mid.index_handle -INNER JOIN sys.partitions AS p WITH (NOLOCK) -ON p.[object_id] = mid.[object_id] -WHERE mid.database_id = DB_ID() -ORDER BY index_advantage DESC OPTION (RECOMPILE); - --- Look at index advantage, last user seek time, number of user seeks to help determine source and importance --- SQL Server is overly eager to add included columns, so beware --- Do not just blindly add indexes that show up from this query!!! - - --- Find missing index warnings for cached plans in the current database (Query 54) (Missing Index Warnings) --- Note: This query could take some time on a busy instance -SELECT TOP(25) OBJECT_NAME(objectid) AS [ObjectName], - query_plan, cp.objtype, cp.usecounts, cp.size_in_bytes -FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) -CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp -WHERE CAST(query_plan AS NVARCHAR(MAX)) LIKE N'%MissingIndex%' -AND dbid = DB_ID() -ORDER BY cp.usecounts DESC OPTION (RECOMPILE); - --- Helps you connect missing indexes to specific stored procedures or queries --- This can help you decide whether to add them or not - - --- Breaks down buffers used by current database by object (table, index) in the buffer cache (Query 55) (Buffer Usage) --- Note: This query could take some time on a busy instance -SELECT OBJECT_NAME(p.[object_id]) AS [Object Name], p.index_id, -CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], -COUNT(*) AS [BufferCount], p.Rows AS [Row Count], -p.data_compression_desc AS [Compression Type] -FROM sys.allocation_units AS a WITH (NOLOCK) -INNER JOIN sys.dm_os_buffer_descriptors AS b WITH (NOLOCK) -ON a.allocation_unit_id = b.allocation_unit_id -INNER JOIN sys.partitions AS p WITH (NOLOCK) -ON a.container_id = p.hobt_id -WHERE b.database_id = CONVERT(int,DB_ID()) -AND p.[object_id] > 100 -GROUP BY p.[object_id], p.index_id, p.data_compression_desc, p.[Rows] -ORDER BY [BufferCount] DESC OPTION (RECOMPILE); - --- Tells you what tables and indexes are using the most memory in the buffer cache --- It can help identify possible candidates for data compression - - --- Get Table names, row counts, and compression status for clustered index or heap (Query 56) (Table Sizes) -SELECT OBJECT_NAME(object_id) AS [ObjectName], -SUM(Rows) AS [RowCount], data_compression_desc AS [CompressionType] -FROM sys.partitions WITH (NOLOCK) -WHERE index_id < 2 --ignore the partitions from the non-clustered index if any -AND OBJECT_NAME(object_id) NOT LIKE N'sys%' -AND OBJECT_NAME(object_id) NOT LIKE N'queue_%' -AND OBJECT_NAME(object_id) NOT LIKE N'filestream_tombstone%' -AND OBJECT_NAME(object_id) NOT LIKE N'fulltext%' -AND OBJECT_NAME(object_id) NOT LIKE N'ifts_comp_fragment%' -AND OBJECT_NAME(object_id) NOT LIKE N'filetable_updates%' -AND OBJECT_NAME(object_id) NOT LIKE N'xml_index_nodes%' -GROUP BY object_id, data_compression_desc -ORDER BY SUM(Rows) DESC OPTION (RECOMPILE); - --- Gives you an idea of table sizes, and possible data compression opportunities - - - --- Get some key table properties (Query 57) (Table Properties) -SELECT OBJECT_NAME(t.[object_id]) AS [ObjectName], p.[rows] AS [Table Rows], p.index_id, - p.data_compression_desc AS [Index Data Compression], - t.create_date, t.lock_on_bulk_load, t.is_replicated, t.has_replication_filter, - t.is_tracked_by_cdc, t.lock_escalation_desc, t.is_filetable -FROM sys.tables AS t WITH (NOLOCK) -INNER JOIN sys.partitions AS p WITH (NOLOCK) -ON t.[object_id] = p.[object_id] -WHERE OBJECT_NAME(t.[object_id]) NOT LIKE N'sys%' -ORDER BY OBJECT_NAME(t.[object_id]), p.index_id OPTION (RECOMPILE); - --- Gives you some good information about your tables - - - --- When were Statistics last updated on all indexes? (Query 58) (Statistics Update) -SELECT SCHEMA_NAME(o.Schema_ID) + N'.' + o.NAME AS [Object Name], o.type_desc AS [Object Type], - i.name AS [Index Name], STATS_DATE(i.[object_id], i.index_id) AS [Statistics Date], - s.auto_created, s.no_recompute, s.user_created, s.is_temporary, - st.row_count, st.used_page_count -FROM sys.objects AS o WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON o.[object_id] = i.[object_id] -INNER JOIN sys.stats AS s WITH (NOLOCK) -ON i.[object_id] = s.[object_id] -AND i.index_id = s.stats_id -INNER JOIN sys.dm_db_partition_stats AS st WITH (NOLOCK) -ON o.[object_id] = st.[object_id] -AND i.[index_id] = st.[index_id] -WHERE o.[type] IN ('U', 'V') -AND st.row_count > 0 -ORDER BY STATS_DATE(i.[object_id], i.index_id) DESC OPTION (RECOMPILE); - --- Helps discover possible problems with out-of-date statistics --- Also gives you an idea which indexes are the most active - - --- Look at most frequently modified indexes and statistics (Query 59) (Volatile Indexes) -SELECT o.name AS [Object Name], o.[object_id], o.type_desc, s.name AS [Statistics Name], - s.stats_id, s.no_recompute, s.auto_created, - sp.modification_counter, sp.rows, sp.rows_sampled, sp.last_updated -FROM sys.objects AS o WITH (NOLOCK) -INNER JOIN sys.stats AS s WITH (NOLOCK) -ON s.object_id = o.object_id -CROSS APPLY sys.dm_db_stats_properties(s.object_id, s.stats_id) AS sp -WHERE o.type_desc NOT IN (N'SYSTEM_TABLE', N'INTERNAL_TABLE') -AND sp.modification_counter > 0 -ORDER BY sp.modification_counter DESC, o.name OPTION (RECOMPILE); - - - --- Get fragmentation info for all indexes above a certain size in the current database (Query 60) (Index Fragmentation) --- Note: This query could take some time on a very large database -SELECT DB_NAME(ps.database_id) AS [Database Name], OBJECT_NAME(ps.OBJECT_ID) AS [Object Name], -i.name AS [Index Name], ps.index_id, ps.index_type_desc, ps.avg_fragmentation_in_percent, -ps.fragment_count, ps.page_count, i.fill_factor, i.has_filter, i.filter_definition -FROM sys.dm_db_index_physical_stats(DB_ID(),NULL, NULL, NULL , N'LIMITED') AS ps -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON ps.[object_id] = i.[object_id] -AND ps.index_id = i.index_id -WHERE ps.database_id = DB_ID() -AND ps.page_count > 2500 -ORDER BY ps.avg_fragmentation_in_percent DESC OPTION (RECOMPILE); - --- Helps determine whether you have framentation in your relational indexes --- and how effective your index maintenance strategy is - - ---- Index Read/Write stats (all tables in current DB) ordered by Reads (Query 61) (Overall Index Usage - Reads) -SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, - s.user_seeks, s.user_scans, s.user_lookups, - s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], - s.user_updates AS [Writes], - i.type_desc AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, - s.last_user_scan, s.last_user_lookup, s.last_user_seek -FROM sys.indexes AS i WITH (NOLOCK) -LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -ON i.[object_id] = s.[object_id] -AND i.index_id = s.index_id -AND s.database_id = DB_ID() -WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 -ORDER BY s.user_seeks + s.user_scans + s.user_lookups DESC OPTION (RECOMPILE); -- Order by reads - - --- Show which indexes in the current database are most active for Reads - - ---- Index Read/Write stats (all tables in current DB) ordered by Writes (Query 62) (Overall Index Usage - Writes) -SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, - s.user_updates AS [Writes], s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], - i.type_desc AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, - s.last_system_update, s.last_user_update -FROM sys.indexes AS i WITH (NOLOCK) -LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -ON i.[object_id] = s.[object_id] -AND i.index_id = s.index_id -AND s.database_id = DB_ID() -WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 -ORDER BY s.user_updates DESC OPTION (RECOMPILE); -- Order by writes - --- Show which indexes in the current database are most active for Writes - - - --- Get lock waits for current database (Query 63) (Lock Waits) -SELECT o.name AS [table_name], i.name AS [index_name], ios.index_id, ios.partition_number, - SUM(ios.row_lock_wait_count) AS [total_row_lock_waits], - SUM(ios.row_lock_wait_in_ms) AS [total_row_lock_wait_in_ms], - SUM(ios.page_lock_wait_count) AS [total_page_lock_waits], - SUM(ios.page_lock_wait_in_ms) AS [total_page_lock_wait_in_ms], - SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) AS [total_lock_wait_in_ms] -FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) AS ios -INNER JOIN sys.objects AS o WITH (NOLOCK) -ON ios.[object_id] = o.[object_id] -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON ios.[object_id] = i.[object_id] -AND ios.index_id = i.index_id -WHERE o.[object_id] > 100 -GROUP BY o.name, i.name, ios.index_id, ios.partition_number -HAVING SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) > 0 -ORDER BY total_lock_wait_in_ms DESC OPTION (RECOMPILE); - --- This query is helpful for troubleshooting blocking and deadlocking issues - - --- Look at recent Full backups for the current database (Query 64) (Recent Full Backups) -SELECT TOP (30) bs.machine_name, bs.server_name, bs.database_name AS [Database Name], bs.recovery_model, -CONVERT (BIGINT, bs.backup_size / 1048576 ) AS [Uncompressed Backup Size (MB)], -CONVERT (BIGINT, bs.compressed_backup_size / 1048576 ) AS [Compressed Backup Size (MB)], -CONVERT (NUMERIC (20,2), (CONVERT (FLOAT, bs.backup_size) / -CONVERT (FLOAT, bs.compressed_backup_size))) AS [Compression Ratio], bs.has_backup_checksums, bs.is_copy_only, -DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) AS [Backup Elapsed Time (sec)], -bs.backup_finish_date AS [Backup Finish Date] -FROM msdb.dbo.backupset AS bs WITH (NOLOCK) -WHERE bs.database_name = DB_NAME(DB_ID()) -AND bs.[type] = 'D' -- Change to L if you want Log backups -ORDER BY bs.backup_finish_date DESC OPTION (RECOMPILE); - --- Are your backup sizes and times changing over time? --- Are you using backup compression? --- Have you done any backup tuning with striped backups, or changing the parameters of the backup command? - - --- These three Pluralsight Courses go into more detail about how to run these queries and interpret the results - --- SQL Server 2014 DMV Diagnostic Queries Part 1 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part1 - --- SQL Server 2014 DMV Diagnostic Queries Part 2 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part2 - --- SQL Server 2014 DMV Diagnostic Queries Part 3 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part3 - - - + +-- SQL Server 2012 Diagnostic Information Queries +-- Glenn Berry +-- Last Modified: February 1, 2019 +-- https://www.sqlskills.com/blogs/glenn/ +-- http://sqlserverperformance.wordpress.com/ +-- Twitter: GlennAlanBerry + +-- Please listen to my Pluralsight courses +-- https://www.pluralsight.com/author/glenn-berry + +-- If you want to find all of our SQLskills SQL101 blog posts, check out https://www.sqlskills.com/help/sql101/ + + +-- Please make sure you are using the correct version of these diagnostic queries for your version of SQL Server + + +-- If you like PowerShell, there is a very useful community solution for running these queries in an automated fashion +-- https://dbatools.io/ + +-- Invoke-DbaDiagnosticQuery +-- https://dbatools.io/functions/invoke-dbadiagnosticquery/ + + +--****************************************************************************** +--* Copyright (C) 2019 Glenn Berry, SQLskills.com +--* All rights reserved. +--* +--* For more scripts and sample code, check out +--* https://www.sqlskills.com/blogs/glenn +--* +--* You may alter this code for your own *non-commercial* purposes. You may +--* republish altered code as long as you include this copyright and give due credit. +--* +--* +--* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF +--* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED +--* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A +--* PARTICULAR PURPOSE. +--* +--****************************************************************************** + +-- Check the major product version to see if it is SQL Server 2012 +IF NOT EXISTS (SELECT * WHERE CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')) LIKE '11%') + BEGIN + DECLARE @ProductVersion varchar(128) = CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')); + RAISERROR ('Script does not match the ProductVersion [%s] of this instance. Many of these queries may not work on this version.' , 18 , 16 , @ProductVersion); + END + ELSE + PRINT N'You have the correct major version of SQL Server for this diagnostic information script'; + + +-- Instance level queries ******************************* + +-- SQL and OS Version information for current instance (Query 1) (Version Info) +SELECT @@SERVERNAME AS [Server Name], @@VERSION AS [SQL Server and OS Version Info]; +------ + +-- SQL Server 2012 RTM Branch Builds SQL Server 2012 SP1 Branch Builds SQL Server 2012 SP2 Branch Builds SQL Server 2012 SP3 Branch Builds SQL Server 2012 SP4 Branch Builds +-- Build Description Release Date Build Description Release Date Build Description Release Date Build Description Release Date Build Description Release Date +-- 11.0.2100 RTM 3/6/2012 +-- 11.0.2316 RTM CU1 4/12/2012 +-- 11.0.2325 RTM CU2 6/18/2012 --> 11.0.3000 SP1 RTM 11/7/2012 +-- 11.0.2332 RTM CU3 8/31/2012 +-- 11.0.2376 RTM CU3 + QFE 10/9/2012 +-- 11.0.2383 RTM CU4 10/15/2012 --> 11.0.3321 SP1 CU1 11/20/2012 +-- 11.0.2395 RTM CU5 12/17/2012 --> 11.0.3339 SP1 CU2 1/21/2013 +-- 11.0.2401 RTM CU6 2/18/2013 --> 11.0.3349 SP1 CU3 3/18/2013 +-- 11.0.2405 RTM CU7 4/15/2013 --> 11.0 3368 SP1 CU4 5/30/2013 +-- 11.0.2410 RTM CU8 6/17/2013 --> 11.0.3373 SP1 CU5 7/15/2013 +-- 11.0.2419 RTM CU9 8/20/2013 --> 11.0.3381 SP1 CU6 9/16/2013 +-- 11.0.2420 RTM CU10 10/21/2013 --> 11.0.3393 SP1 CU7 11/18/2013 +-- 11.0.2424 RTM CU11 12/16/2003 --> 11.0.3401 SP1 CU8 1/20/2014 +-- 11.0.3412 SP1 CU9 3/17/2014 --> 11.0.5058 SP2 RTM 6/10/2014 +-- 11.0.3431 SP1 CU10 5/19/2014 +-- 11.0.3449 SP1 CU11 7/21/2014 --> 11.0.5532 SP2 CU1 7/23/2014 +-- 11.0.3470 SP1 CU12 9/15/2014 --> 11.0.5548 SP2 CU2 9/15/2014 +-- 11.0.3482 SP1 CU13 11/17/2014--> 11.0.5556 SP2 CU3 11/17/2014 +-- 11.0.3486 SP1 CU14 1/19/2015 --> 11.0.5569 SP2 CU4 1/19/2015 +-- 11.0.5571 SP2 CU4 + COD HF 2/4/2015 +-- 11.0.3487 SP1 CU15 3/16/2015 --> 11.0.5582 SP2 CU5 3/16/2015 +-- 11.0.3492 SP1 CU16 5/18/2015 --> 11.0.5592 SP2 CU6 5/18/2015 +-- 11.0.5623 SP2 CU7 7/20/2015 +-- 11.0.5634 SP2 CU8 9/21/2015 +-- 11.0.5641 SP2 CU9 11/16/2015 ----> 11.0.6020 SP3 RTM 11/21/2015 +-- 11.0.5644 SP2 CU10 1/18/2016 ----> 11.0.6518 SP3 CU1 1/18/2016 +-- 11.0.5646 SP2 CU11 3/21/2016 ----> 11.0.6523 SP3 CU2 3/21/2016 +-- 11.0.5649 SP2 CU12 5/16/2016 ----> 11.0.6537 SP3 CU3 5/16/2016 +-- 11.0.5655 SP2 CU13 7/18/2016 ----> 11.0.6540 SP3 CU4 7/18/2016 +-- 11.0.5657 SP2 CU14 9/19/2016 ----> 11.0.6544 SP3 CU5 9/20/2016 +-- 11.0.5676 SP2 CU15 11/16/2016 ----> 11.0.6567 SP3 CU6 11/16/2016 +-- 11.0.5678 SP2 CU16 1/17/2017 ----> 11.0.6579 SP3 CU7 1/17/2017 +-- 11.0.6594 SP3 CU8 3/20/2017 +-- 11.0.6598 SP3 CU9 5/15/2017 +-- 11.0.6607 SP3 CU10 8/8/2017 +-- 11.0.7001 SP4 RTM 10/3/2017 +-- +-- Security Update for SQL Server 2012 SP4 (KB4057116) +-- https://bit.ly/2F33Sc4 +-- 11.0.7462 Security Update 1/12/2018 (Security Update for SQL Server 2012 SP4 (KB4057116)) +-- SQL Server 2012 Service Pack 4 (SP4) Released! +-- https://bit.ly/2qN8kr3 + +-- How to determine the version, edition and update level of SQL Server and its components +-- https://bit.ly/2oAjKgW + +-- SQL Server 2012 SP3 build versions +-- https://bit.ly/2HFjAzA + +-- SQL Server 2012 SP2 build versions +-- https://bit.ly/2qLqqcS + +-- The SQL Server 2012 builds that were released after SQL Server 2012 Service Pack 1 was released +-- https://bit.ly/2HG21za + +-- The SQL Server 2012 builds that were released after SQL Server 2012 was released +-- https://bit.ly/2K1xZnX + +-- Where to find information about the latest SQL Server builds +-- https://bit.ly/2IGHbfY + +-- Recommended updates and configuration options for SQL Server 2012 and SQL Server 2014 used with high-performance workloads +-- https://bit.ly/2Hy3zIZ + +-- Performance and Stability Related Fixes in Post-SQL Server 2012 SP3 Builds +-- https://bit.ly/2woDJ4Z + +-- Performance and Stability Related Fixes in Post-SQL Server 2012 SP2 Builds +-- https://bit.ly/2vuKZzp + +-- Performance and Stability Related Fixes in Post-SQL Server 2012 SP1 Builds +-- https://bit.ly/2vBt1LC + +-- Performance Related Fixes in Post-SQL Server 2012 RTM Builds +-- https://bit.ly/2vuIQn4 + +-- Announcing updates to the SQL Server Incremental Servicing Model (ISM) +-- https://bit.ly/1RzYITz + +-- Update Center for Microsoft SQL Server +-- https://bit.ly/2pZptuQ + +-- Download SQL Server Management Studio (SSMS) +-- https://bit.ly/1OcupT9 + +-- Download and install Azure Data Studio +-- https://bit.ly/2vgke1A + + +-- Get socket, physical core and logical core count from the SQL Server Error log. (Query 2) (Core Counts) +-- This query might take a few seconds depending on the size of your error log +EXEC sys.xp_readerrorlog 0, 1, N'detected', N'socket'; +------ + +-- This can help you determine the exact core counts used by SQL Server and whether HT is enabled or not +-- It can also help you confirm your SQL Server licensing model +-- Be on the lookout for this message "using 40 logical processors based on SQL Server licensing" +-- (when you have more than 40 logical cores) which means grandfathered Server/CAL licensing +-- This query will return no results if your error log has been recycled since the instance was last started +-- New in SQL Server 2012 SP4 + + + +-- Get selected server properties (Query 3) (Server Properties) +SELECT SERVERPROPERTY('MachineName') AS [MachineName], +SERVERPROPERTY('ServerName') AS [ServerName], +SERVERPROPERTY('InstanceName') AS [Instance], +SERVERPROPERTY('IsClustered') AS [IsClustered], +SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS [ComputerNamePhysicalNetBIOS], +SERVERPROPERTY('Edition') AS [Edition], +SERVERPROPERTY('ProductLevel') AS [ProductLevel], -- What servicing branch (RTM/SP/CU) +SERVERPROPERTY('ProductUpdateLevel') AS [ProductUpdateLevel], -- Within a servicing branch, what CU# is applied +SERVERPROPERTY('ProductVersion') AS [ProductVersion], +SERVERPROPERTY('ProductMajorVersion') AS [ProductMajorVersion], +SERVERPROPERTY('ProductMinorVersion') AS [ProductMinorVersion], +SERVERPROPERTY('ProductBuild') AS [ProductBuild], +SERVERPROPERTY('ProductBuildType') AS [ProductBuildType], -- Is this a GDR or OD hotfix (NULL if on a CU build) +SERVERPROPERTY('ProductUpdateReference') AS [ProductUpdateReference], -- KB article number that is applicable for this build +SERVERPROPERTY('ProcessID') AS [ProcessID], +SERVERPROPERTY('Collation') AS [Collation], +SERVERPROPERTY('IsFullTextInstalled') AS [IsFullTextInstalled], +SERVERPROPERTY('IsIntegratedSecurityOnly') AS [IsIntegratedSecurityOnly], +SERVERPROPERTY('FilestreamConfiguredLevel') AS [FilestreamConfiguredLevel], +SERVERPROPERTY('IsHadrEnabled') AS [IsHadrEnabled], +SERVERPROPERTY('HadrManagerStatus') AS [HadrManagerStatus], +SERVERPROPERTY('InstanceDefaultDataPath') AS [InstanceDefaultDataPath], +SERVERPROPERTY('InstanceDefaultLogPath') AS [InstanceDefaultLogPath], +SERVERPROPERTY('BuildClrVersion') AS [Build CLR Version]; +------ + +-- This gives you a lot of useful information about your instance of SQL Server, +-- such as the ProcessID for SQL Server and your collation +-- Note: Some columns will be NULL on older SQL Server builds + +-- SERVERPROPERTY (Transact-SQL) +-- https://bit.ly/2eeaXeI + + +-- Get instance-level configuration values for instance (Query 4) (Configuration Values) +SELECT name, value, value_in_use, minimum, maximum, [description], is_dynamic, is_advanced +FROM sys.configurations WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Focus on these settings: +-- backup compression default (should be 1 in most cases) +-- clr enabled (only enable if it is needed) +-- cost threshold for parallelism (depends on your workload) +-- lightweight pooling (should be zero) +-- max degree of parallelism (depends on your workload and hardware) +-- max server memory (MB) (set to an appropriate value, not the default) +-- optimize for ad hoc workloads (should be 1) +-- priority boost (should be zero) +-- remote admin connections (should be 1) + + +-- Returns a list of all global trace flags that are enabled (Query 5) (Global Trace Flags) +DBCC TRACESTATUS (-1); +------ + +-- If no global trace flags are enabled, no results will be returned. +-- It is very useful to know what global trace flags are currently enabled as part of the diagnostic process. + +-- Common trace flags that should be enabled in most cases +-- TF 1117 - When growing a data file, grow all files at the same time so they remain the same size, reducing allocation contention points +-- https://bit.ly/2GY1kOl +-- +-- TF 1118 - Helps alleviate allocation contention in tempdb, SQL Server allocates full extents to each database object, +-- thereby eliminating the contention on SGAM pages (more important with older versions of SQL Server) +-- Recommendations to reduce allocation contention in SQL Server tempdb database +-- https://bit.ly/2GY1kOl + +-- TF 2371 - Lowers auto update statistics threshold for large tables (on tables with more than 25,000 rows) +-- https://bit.ly/2HySkAg + +-- TF 3023 - Enables backup checksum default +-- https://bit.ly/2vtjqqc + +-- TF 3226 - Supresses logging of successful database backup messages to the SQL Server Error Log +-- https://bit.ly/2p6MTjS + +-- TF 3449 - Enables use of dirty page manager (SQL Server 2012 SP3 CU3 and later) +-- https://bit.ly/2uj0h5M + +-- TF 6533 - Spatial performance improvements in SQL Server 2012 and 2014 +-- https://bit.ly/2v7C7ze + +-- TF 6534 - Enables use of native code to improve performance with spatial data +-- https://bit.ly/2HrQUpU + +-- TF 8079 - Enables automatic soft-NUMA on systems with eight or more physical cores per NUMA node (with SQL Server 2012 SP4) +-- https://bit.ly/2qN8kr3 + +-- DBCC TRACEON - Trace Flags (Transact-SQL) +-- https://bit.ly/2FuSvPg + + +-- Returns status of instant file initialization (Query 6) (IFI Status) +EXEC sys.xp_readerrorlog 0, 1, N'Database Instant File Initialization'; +------ + +-- Lets you determine whether Instant File Initialization (IFI) is enabled for the instance +-- This should be enabled in the vast majority of cases +-- (Added in SQL Server 2012 SP4) + +-- Database Instant File Initialization +-- https://bit.ly/2nTX74y + +-- Misconceptions around instant file initialization +-- https://bit.ly/2oBSKgZ + + + +-- SQL Server Process Address space info (Query 7) (Process Memory) +-- (shows whether locked pages is enabled, among other things) +SELECT physical_memory_in_use_kb/1024 AS [SQL Server Memory Usage (MB)], + locked_page_allocations_kb/1024 AS [SQL Server Locked Pages Allocation (MB)], + large_page_allocations_kb/1024 AS [SQL Server Large Pages Allocation (MB)], + page_fault_count, memory_utilization_percentage, available_commit_limit_kb, + process_physical_memory_low, process_virtual_memory_low +FROM sys.dm_os_process_memory WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You want to see 0 for process_physical_memory_low +-- You want to see 0 for process_virtual_memory_low +-- This indicates that you are not under internal memory pressure +-- If locked_page_allocations_kb > 0, then LPIM is enabled + +-- How to enable the "locked pages" feature in SQL Server 2012 +-- https://bit.ly/2F5UjOA + +-- Memory Management Architecture Guide +-- https://bit.ly/2JKkadC + + + +-- SQL Server Services information (Query 8) (SQL Server Services Info) +SELECT servicename, process_id, startup_type_desc, status_desc, +last_startup_time, service_account, is_clustered, cluster_nodename, [filename] +FROM sys.dm_server_services WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Tells you the account being used for the SQL Server Service and the SQL Agent Service +-- Shows the process_id, when they were last started, and their current status +-- Also shows whether you are running on a failover cluster instance, and what node you are running on + +-- sys.dm_server_services (Transact-SQL) +-- https://bit.ly/2oKa1Un + + +-- Last backup information by database (Query 9) (Last Backup By Database) +SELECT ISNULL(d.[name], bs.[database_name]) AS [Database], d.recovery_model_desc AS [Recovery Model], + d.log_reuse_wait_desc AS [Log Reuse Wait Desc], + MAX(CASE WHEN [type] = 'D' THEN bs.backup_finish_date ELSE NULL END) AS [Last Full Backup], + MAX(CASE WHEN [type] = 'I' THEN bs.backup_finish_date ELSE NULL END) AS [Last Differential Backup], + MAX(CASE WHEN [type] = 'L' THEN bs.backup_finish_date ELSE NULL END) AS [Last Log Backup] +FROM sys.databases AS d WITH (NOLOCK) +LEFT OUTER JOIN msdb.dbo.backupset AS bs WITH (NOLOCK) +ON bs.[database_name] = d.[name] +AND bs.backup_finish_date > GETDATE()- 30 +WHERE d.name <> N'tempdb' +GROUP BY ISNULL(d.[name], bs.[database_name]), d.recovery_model_desc, d.log_reuse_wait_desc, d.[name] +ORDER BY d.recovery_model_desc, d.[name] OPTION (RECOMPILE); +------ + +-- This helps you spot runaway transaction logs and other issues with your backup schedule + + +-- Get SQL Server Agent jobs and Category information (Query 10) (SQL Server Agent Jobs) +SELECT sj.name AS [Job Name], sj.[description] AS [Job Description], SUSER_SNAME(sj.owner_sid) AS [Job Owner], +sj.date_created AS [Date Created], sj.[enabled] AS [Job Enabled], +sj.notify_email_operator_id, sj.notify_level_email, sc.name AS [CategoryName], +s.[enabled] AS [Sched Enabled], js.next_run_date, js.next_run_time +FROM msdb.dbo.sysjobs AS sj WITH (NOLOCK) +INNER JOIN msdb.dbo.syscategories AS sc WITH (NOLOCK) +ON sj.category_id = sc.category_id +LEFT OUTER JOIN msdb.dbo.sysjobschedules AS js WITH (NOLOCK) +ON sj.job_id = js.job_id +LEFT OUTER JOIN msdb.dbo.sysschedules AS s WITH (NOLOCK) +ON js.schedule_id = s.schedule_id +ORDER BY sj.name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent jobs, who owns them and how they are configured +-- Look for Agent jobs that are not owned by sa +-- Look for jobs that have a notify_email_operator_id set to 0 (meaning no operator) +-- Look for jobs that have a notify_level_email set to 0 (meaning no e-mail is ever sent) +-- +-- MSDN sysjobs documentation +-- https://bit.ly/2paDEOP + +-- SQL Server Maintenance Solution +-- https://bit.ly/1pgchQu + + +-- Get SQL Server Agent Alert Information (Query 11) (SQL Server Agent Alerts) +SELECT name, event_source, message_id, severity, [enabled], has_notification, + delay_between_responses, occurrence_count, last_occurrence_date, last_occurrence_time +FROM msdb.dbo.sysalerts WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent Alerts (which are different from SQL Server Agent jobs) +-- Read more about Agent Alerts here: https://bit.ly/2Giz0Xf + + + +-- Windows information (Query 12) (Windows Info) +SELECT windows_release, windows_service_pack_level, + windows_sku, os_language_version +FROM sys.dm_os_windows_info WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Gives you major OS version, Service Pack, Edition, and language info for the operating system +-- 10.0 is either Windows 10 or Windows Server 2016 +-- 6.3 is either Windows 8.1, or Windows Server 2012 R2 +-- 6.2 is either Windows 8 or Windows Server 2012 +-- 6.1 is either Windows 7 or Windows Server 2008 R2 +-- 6.0 is either Windows Vista or Windows Server 2008 + +-- Windows SKU codes +-- 4 is Enterprise Edition +-- 7 is Standard Server Edition +-- 8 is Datacenter Server Edition +-- 10 is Enterprise Server Edition +-- 48 is Professional Edition +-- 161 is Pro for Workstations + +-- 1033 for os_language_version is US-English + +-- SQL Server 2012 requires Windows Server 2008 SP2 or newer + +-- Hardware and Software Requirements for Installing SQL Server 2012 +-- https://bit.ly/1yRYXkQ + +-- Using SQL Server in Windows 8 and later versions of Windows operating system +-- https://bit.ly/2F7Ax0P + + + +-- SQL Server NUMA Node information (Query 13) (SQL Server NUMA Info) +SELECT node_id, node_state_desc, memory_node_id, processor_group, online_scheduler_count, + idle_scheduler_count, active_worker_count, avg_load_balance, resource_monitor_state +FROM sys.dm_os_nodes WITH (NOLOCK) +WHERE node_state_desc <> N'ONLINE DAC' OPTION (RECOMPILE); +------ + +-- Gives you some useful information about the composition and relative load on your NUMA nodes +-- You want to see an equal number of schedulers on each NUMA node +-- Watch out if SQL Server 2012 Standard Edition has been installed +-- on a physical or virtual machine with more than four sockets or more than 16 physical cores + +-- sys.dm_os_nodes (Transact-SQL) +-- https://bit.ly/2pn5Mw8 + +-- Balancing Your Available SQL Server Core Licenses Evenly Across NUMA Nodes +-- https://bit.ly/2vfC4Rq + + + +-- Good basic information about OS memory amounts and state (Query 14) (System Memory) +SELECT total_physical_memory_kb/1024 AS [Physical Memory (MB)], + available_physical_memory_kb/1024 AS [Available Memory (MB)], + total_page_file_kb/1024 AS [Total Page File (MB)], + available_page_file_kb/1024 AS [Available Page File (MB)], + system_cache_kb/1024 AS [System Cache (MB)], + system_memory_state_desc AS [System Memory State] +FROM sys.dm_os_sys_memory WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You want to see "Available physical memory is high" for System Memory State +-- This indicates that you are not under external memory pressure + +-- Possible System Memory State values: +-- Available physical memory is high +-- Physical memory usage is steady +-- Available physical memory is low +-- Available physical memory is running low +-- Physical memory state is transitioning + +-- sys.dm_os_sys_memory (Transact-SQL) +-- https://bit.ly/2pcV0xq + + + +-- You can skip the next two queries if you know you don't have a clustered instance + + +-- Get information about your cluster nodes and their status (Query 15) (Cluster Node Properties) +-- (if your database server is in a failover cluster) +SELECT NodeName, status_description, is_current_owner +FROM sys.dm_os_cluster_nodes WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Knowing which node owns the cluster resources is critical +-- Especially when you are installing Windows or SQL Server updates +-- You will see no results if your instance is not clustered + +-- Recommended hotfixes and updates for Windows Server 2012 R2-based failover clusters +-- https://bit.ly/1z5BfCw + + +-- Get information about any AlwaysOn AG cluster this instance is a part of (Query 16) (AlwaysOn AG Cluster) +SELECT cluster_name, quorum_type_desc, quorum_state_desc +FROM sys.dm_hadr_cluster WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You will see no results if your instance is not using AlwaysOn AGs + + + +-- Hardware information from SQL Server 2012 (Query 17) (Hardware Info) +SELECT cpu_count AS [Logical CPU Count], scheduler_count, + hyperthread_ratio AS [Hyperthread Ratio], + cpu_count/hyperthread_ratio AS [Physical CPU Count], + physical_memory_kb/1024 AS [Physical Memory (MB)], + committed_kb/1024 AS [Committed Memory (MB)], + committed_target_kb/1024 AS [Committed Target Memory (MB)], + max_workers_count AS [Max Workers Count], + affinity_type_desc AS [Affinity Type], + sqlserver_start_time AS [SQL Server Start Time], + DATEDIFF(hour, sqlserver_start_time, GETDATE()) AS [SQL Server Up Time (hrs)], + virtual_machine_type_desc AS [Virtual Machine Type] +FROM sys.dm_os_sys_info WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Gives you some good basic hardware information about your database server +-- Cannot distinguish between HT and multi-core +-- Note: virtual_machine_type_desc of HYPERVISOR does not automatically mean you are running SQL Server inside of a VM +-- It merely indicates that you have a hypervisor running on your host + +-- sys.dm_os_sys_info (Transact-SQL) +-- https://bit.ly/2pczOYs + + +-- Get System Manufacturer and model number from SQL Server Error log (Query 18) (System Manufacturer) +EXEC sys.xp_readerrorlog 0, 1, N'Manufacturer'; +------ + +-- This can help you determine the capabilities and capacities of your database server +-- Can also be used to confirm if you are running in a VM +-- This query might take a few seconds if you have not recycled your error log recently +-- This query will return no results if your error log has been recycled since the instance was started + + +-- Get pvscsi info from Windows Registry (Query 19) (PVSCSI Driver Parameters) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'SYSTEM\CurrentControlSet\services\pvscsi\Parameters\Device', N'DriverParameter'; +------ + +-- This is valid for VMware VMs +-- Recommended value for intensive I/O patterns from VMware is: RequestRingPages=32,MaxQueueDepth=254 +-- https://kb.vmware.com/s/article/2053145 + + + +-- Get BIOS date from Windows Registry (Query 20) (BIOS Date) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\BIOS', N'BiosReleaseDate'; +------ + +-- Helps you understand whether the main system BIOS is up to date, and the possible age of the hardware +-- Not as useful for virtualization + + +-- Get processor description from Windows Registry (Query 21) (Processor Description) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\CentralProcessor\0', N'ProcessorNameString'; +------ + +-- Gives you the model number and rated clock speed of your processor(s) +-- Your processors may be running at less than the rated clock speed due +-- to the Windows Power Plan or hardware power management + +-- You can use CPU-Z to get your actual CPU core speed and a lot of other useful information +-- https://bit.ly/QhR6xF + +-- You can learn more about processor selection for SQL Server by following this link +-- https://bit.ly/2F3aVlP + + + +-- Get information on location, time and size of any memory dumps from SQL Server (Query 22) (Memory Dump Info) +SELECT [filename], creation_time, size_in_bytes/1048576.0 AS [Size (MB)] +FROM sys.dm_server_memory_dumps WITH (NOLOCK) +ORDER BY creation_time DESC OPTION (RECOMPILE); +------ + +-- This will not return any rows if you have +-- not had any memory dumps (which is a good thing) + +-- sys.dm_server_memory_dumps (Transact-SQL) +-- https://bit.ly/2elwWll + + + +-- Look at Suspect Pages table (Query 23) (Suspect Pages) +SELECT DB_NAME(database_id) AS [Database Name], [file_id], page_id, + event_type, error_count, last_update_date +FROM msdb.dbo.suspect_pages WITH (NOLOCK) +ORDER BY database_id OPTION (RECOMPILE); +------ + +-- event_type value descriptions +-- 1 = 823 error caused by an operating system CRC error +-- or 824 error other than a bad checksum or a torn page (for example, a bad page ID) +-- 2 = Bad checksum +-- 3 = Torn page +-- 4 = Restored (The page was restored after it was marked bad) +-- 5 = Repaired (DBCC repaired the page) +-- 7 = Deallocated by DBCC + +-- Ideally, this query returns no results. The table is limited to 1000 rows. +-- If you do get results here, you should do further investigation to determine the root cause + +-- Manage the suspect_pages Table +-- https://bit.ly/2Fvr1c9 + + +-- Get number of data files in tempdb database (Query 24) (Tempdb Data Files) +EXEC sys.xp_readerrorlog 0, 1, N'The tempdb database has'; +------ + +-- Get the number of data files in the tempdb database +-- 4-8 data files that are all the same size is a good starting point +-- This query will return no results if your error log has been recycled since the instance was last started +-- This will be blank unless you have Service Pack 4 or later + + +-- File names and paths for all user and system databases on instance (Query 25) (Database Filenames and Paths) +SELECT DB_NAME([database_id]) AS [Database Name], + [file_id], [name], physical_name, [type_desc], state_desc, + is_percent_growth, growth, + CONVERT(bigint, growth/128.0) AS [Growth in MB], + CONVERT(bigint, size/128.0) AS [Total Size in MB] +FROM sys.master_files WITH (NOLOCK) +ORDER BY DB_NAME([database_id]), [file_id] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- Are data files and log files on different drives? +-- Is everything on the C: drive? +-- Is tempdb on dedicated drives? +-- Is there only one tempdb data file? +-- Are all of the tempdb data files the same size? +-- Are there multiple data files for user databases? +-- Is percent growth enabled for any files (which is bad)? + + +-- Volume info for all LUNS that have database files on the current instance (Query 26) (Volume Info) +SELECT DISTINCT vs.volume_mount_point, vs.file_system_type, vs.logical_volume_name, +CONVERT(DECIMAL(18,2), vs.total_bytes/1073741824.0) AS [Total Size (GB)], +CONVERT(DECIMAL(18,2), vs.available_bytes/1073741824.0) AS [Available Size (GB)], +CONVERT(DECIMAL(18,2), vs.available_bytes * 1. / vs.total_bytes * 100.) AS [Space Free %], +vs.supports_compression, vs.is_compressed, +vs.supports_sparse_files, vs.supports_alternate_streams +FROM sys.master_files AS f WITH (NOLOCK) +CROSS APPLY sys.dm_os_volume_stats(f.database_id, f.[file_id]) AS vs +ORDER BY vs.volume_mount_point OPTION (RECOMPILE); +------ + +-- Shows you the total and free space on the LUNs where you have database files +-- Being low on free space can negatively affect performance + +-- sys.dm_os_volume_stats (Transact-SQL) +-- https://bit.ly/2oBPNNr + + + +-- Drive level latency information (Query 27) (Drive Level Latency) +-- Based on code from Jimmy May +SELECT tab.[Drive], tab.volume_mount_point AS [Volume Mount Point], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (io_stall_read_ms/num_of_reads) + END AS [Read Latency], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (io_stall_write_ms/num_of_writes) + END AS [Write Latency], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE (io_stall/(num_of_reads + num_of_writes)) + END AS [Overall Latency], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (num_of_bytes_read/num_of_reads) + END AS [Avg Bytes/Read], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (num_of_bytes_written/num_of_writes) + END AS [Avg Bytes/Write], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE ((num_of_bytes_read + num_of_bytes_written)/(num_of_reads + num_of_writes)) + END AS [Avg Bytes/Transfer] +FROM (SELECT LEFT(UPPER(mf.physical_name), 2) AS Drive, SUM(num_of_reads) AS num_of_reads, + SUM(io_stall_read_ms) AS io_stall_read_ms, SUM(num_of_writes) AS num_of_writes, + SUM(io_stall_write_ms) AS io_stall_write_ms, SUM(num_of_bytes_read) AS num_of_bytes_read, + SUM(num_of_bytes_written) AS num_of_bytes_written, SUM(io_stall) AS io_stall, vs.volume_mount_point + FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS vfs + INNER JOIN sys.master_files AS mf WITH (NOLOCK) + ON vfs.database_id = mf.database_id AND vfs.file_id = mf.file_id + CROSS APPLY sys.dm_os_volume_stats(mf.database_id, mf.[file_id]) AS vs + GROUP BY LEFT(UPPER(mf.physical_name), 2), vs.volume_mount_point) AS tab +ORDER BY [Overall Latency] OPTION (RECOMPILE); +------ + +-- Shows you the drive-level latency for reads and writes, in milliseconds +-- Latency above 30-40ms is usually a problem +-- These latency numbers include all file activity against all SQL Server +-- database files on each drive since SQL Server was last started + + +-- Calculates average stalls per read, per write, and per total input/output for each database file (Query 28) (IO Latency by File) +SELECT DB_NAME(fs.database_id) AS [Database Name], CAST(fs.io_stall_read_ms/(1.0 + fs.num_of_reads) AS NUMERIC(10,1)) AS [avg_read_latency_ms], +CAST(fs.io_stall_write_ms/(1.0 + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_write_latency_ms], +CAST((fs.io_stall_read_ms + fs.io_stall_write_ms)/(1.0 + fs.num_of_reads + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_io_latency_ms], +CONVERT(DECIMAL(18,2), mf.size/128.0) AS [File Size (MB)], mf.physical_name, mf.type_desc, fs.io_stall_read_ms, fs.num_of_reads, +fs.io_stall_write_ms, fs.num_of_writes, fs.io_stall_read_ms + fs.io_stall_write_ms AS [io_stalls], fs.num_of_reads + fs.num_of_writes AS [total_io] +FROM sys.dm_io_virtual_file_stats(null,null) AS fs +INNER JOIN sys.master_files AS mf WITH (NOLOCK) +ON fs.database_id = mf.database_id +AND fs.[file_id] = mf.[file_id] +ORDER BY avg_io_latency_ms DESC OPTION (RECOMPILE); +------ + +-- Helps determine which database files on the entire instance have the most I/O bottlenecks +-- This can help you decide whether certain LUNs are overloaded and whether you might +-- want to move some files to a different location or perhaps improve your I/O performance +-- These latency numbers include all file activity against each SQL Server +-- database file since SQL Server was last started + + +-- Look for I/O requests taking longer than 15 seconds in the six most recent SQL Server Error Logs (Query 29) (IO Warnings) +CREATE TABLE #IOWarningResults(LogDate datetime, ProcessInfo sysname, LogText nvarchar(1000)); + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 0, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 1, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 2, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 3, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 4, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 5, 1, N'taking longer than 15 seconds'; + +SELECT LogDate, ProcessInfo, LogText +FROM #IOWarningResults +ORDER BY LogDate DESC; + +DROP TABLE #IOWarningResults; +------ + +-- Finding 15 second I/O warnings in the SQL Server Error Log is useful evidence of +-- poor I/O performance (which might have many different causes) +-- Look to see if you see any patterns in the results (same files, same drives, same time of day, etc.) + +-- Diagnostics in SQL Server help detect stalled and stuck I/O operations +-- https://bit.ly/2qtaw73 + + +-- Resource Governor Resource Pool information (Query 30) (RG Resource Pools) +SELECT pool_id, [Name], statistics_start_time, + min_memory_percent, max_memory_percent, + max_memory_kb/1024 AS [max_memory_mb], + used_memory_kb/1024 AS [used_memory_mb], + target_memory_kb/1024 AS [target_memory_mb] +FROM sys.dm_resource_governor_resource_pools WITH (NOLOCK) +OPTION (RECOMPILE); +------ + +-- sys.dm_resource_governor_resource_pools (Transact-SQL) +-- https://bit.ly/2MVU0Vy + + + +-- Recovery model, log reuse wait description, log file size, log usage size (Query 31) (Database Properties) +-- and compatibility level for all databases on instance +SELECT db.[name] AS [Database Name], SUSER_SNAME(db.owner_sid) AS [Database Owner], db.recovery_model_desc AS [Recovery Model], +db.state_desc, db.containment_desc, db.log_reuse_wait_desc AS [Log Reuse Wait Description], +CONVERT(DECIMAL(18,2), ls.cntr_value/1024.0) AS [Log Size (MB)], CONVERT(DECIMAL(18,2), lu.cntr_value/1024.0) AS [Log Used (MB)], +CAST(CAST(lu.cntr_value AS FLOAT) / CAST(ls.cntr_value AS FLOAT)AS DECIMAL(18,2)) * 100 AS [Log Used %], +db.[compatibility_level] AS [DB Compatibility Level], db.page_verify_option_desc AS [Page Verify Option], +db.is_auto_create_stats_on, db.is_auto_update_stats_on, db.is_auto_update_stats_async_on, db.is_parameterization_forced, +db.snapshot_isolation_state_desc, db.is_read_committed_snapshot_on, db.is_auto_close_on, db.is_auto_shrink_on, +db.target_recovery_time_in_seconds, db.is_cdc_enabled, db.is_published, db.group_database_id, db.replica_id, +db.is_encrypted, de.encryption_state, de.percent_complete, de.key_algorithm, de.key_length +FROM sys.databases AS db WITH (NOLOCK) +INNER JOIN sys.dm_os_performance_counters AS lu WITH (NOLOCK) +ON db.name = lu.instance_name +INNER JOIN sys.dm_os_performance_counters AS ls WITH (NOLOCK) +ON db.name = ls.instance_name +LEFT OUTER JOIN sys.dm_database_encryption_keys AS de WITH (NOLOCK) +ON db.database_id = de.database_id +WHERE lu.counter_name LIKE N'Log File(s) Used Size (KB)%' +AND ls.counter_name LIKE N'Log File(s) Size (KB)%' +AND ls.cntr_value > 0 +ORDER BY db.[name] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- How many databases are on the instance? +-- What recovery models are they using? +-- What is the log reuse wait description? +-- How full are the transaction logs? +-- What compatibility level are the databases on? +-- What is the Page Verify Option? (should be CHECKSUM) +-- Is Auto Update Statistics Asynchronously enabled? +-- Make sure auto_shrink and auto_close are not enabled! + + + +-- Missing Indexes for all databases by Index Advantage (Query 32) (Missing Indexes All Databases) +SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +FORMAT(migs.last_user_seek, 'yyyy-MM-dd HH:mm:ss') AS [last_user_seek], +mid.[statement] AS [Database.Schema.Table], +COUNT(1) OVER(PARTITION BY mid.[statement]) AS [missing_indexes_for_table], +COUNT(1) OVER(PARTITION BY mid.[statement], equality_columns) AS [similar_missing_indexes_for_table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, +CONVERT(decimal(18,2), migs.avg_total_user_cost) AS [avg_total_user_cost], migs.avg_user_impact +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Getting missing index information for all of the databases on the instance is very useful +-- Look at last user seek time, number of user seeks to help determine source and importance +-- Also look at avg_user_impact and avg_total_user_cost to help determine importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + +-- SQL Server Index Design Guide +-- https://bit.ly/2qtZr4N + + + +-- Get VLF Counts for all databases on the instance (Query 33) (VLF Counts) +-- (adapted from Michelle Ufford) +CREATE TABLE #VLFInfo (RecoveryUnitID int, FileID int, + FileSize bigint, StartOffset bigint, + FSeqNo bigint, [Status] bigint, + Parity bigint, CreateLSN numeric(38)); + +CREATE TABLE #VLFCountResults(DatabaseName sysname, VLFCount int); + +EXEC sp_MSforeachdb N'Use [?]; + + INSERT INTO #VLFInfo + EXEC sp_executesql N''DBCC LOGINFO([?])''; + + INSERT INTO #VLFCountResults + SELECT DB_NAME(), COUNT(*) + FROM #VLFInfo; + + TRUNCATE TABLE #VLFInfo;' + +SELECT DatabaseName, VLFCount +FROM #VLFCountResults +ORDER BY VLFCount DESC; + +DROP TABLE #VLFInfo; +DROP TABLE #VLFCountResults; +------ + +-- High VLF counts can affect write performance to the log file +-- and they can make full database restores and crash recovery take much longer +-- Try to keep your VLF counts under 200 in most cases (depending on log file size) + + + +-- Get CPU utilization by database (Query 34) (CPU Usage by Database) +WITH DB_CPU_Stats +AS +(SELECT pa.DatabaseID, DB_Name(pa.DatabaseID) AS [Database Name], SUM(qs.total_worker_time/1000) AS [CPU_Time_Ms] + FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) + CROSS APPLY (SELECT CONVERT(int, value) AS [DatabaseID] + FROM sys.dm_exec_plan_attributes(qs.plan_handle) + WHERE attribute = N'dbid') AS pa + GROUP BY DatabaseID) +SELECT ROW_NUMBER() OVER(ORDER BY [CPU_Time_Ms] DESC) AS [CPU Rank], + [Database Name], [CPU_Time_Ms] AS [CPU Time (ms)], + CAST([CPU_Time_Ms] * 1.0 / SUM([CPU_Time_Ms]) OVER() * 100.0 AS DECIMAL(5, 2)) AS [CPU Percent] +FROM DB_CPU_Stats +WHERE DatabaseID <> 32767 -- ResourceDB +ORDER BY [CPU Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most CPU resources on the instance +-- Note: This only reflects CPU usage from the currently cached query plans + + +-- Get I/O utilization by database (Query 35) (IO Usage By Database) +WITH Aggregate_IO_Statistics +AS (SELECT DB_NAME(database_id) AS [Database Name], + CAST(SUM(num_of_bytes_read + num_of_bytes_written) / 1048576 AS DECIMAL(12, 2)) AS [ioTotalMB], + CAST(SUM(num_of_bytes_read ) / 1048576 AS DECIMAL(12, 2)) AS [ioReadMB], + CAST(SUM(num_of_bytes_written) / 1048576 AS DECIMAL(12, 2)) AS [ioWriteMB] + FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS [DM_IO_STATS] + GROUP BY database_id) +SELECT ROW_NUMBER() OVER (ORDER BY ioTotalMB DESC) AS [I/O Rank], + [Database Name], ioTotalMB AS [Total I/O (MB)], + CAST(ioTotalMB / SUM(ioTotalMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Total I/O %], + ioReadMB AS [Read I/O (MB)], + CAST(ioReadMB / SUM(ioReadMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Read I/O %], + ioWriteMB AS [Write I/O (MB)], + CAST(ioWriteMB / SUM(ioWriteMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Write I/O %] +FROM Aggregate_IO_Statistics +ORDER BY [I/O Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most I/O resources on the instance +-- These numbers are cumulative since the last service restart +-- They include all I/O activity, not just the nominal I/O workload + + +-- Get total buffer usage by database for current instance (Query 36) (Total Buffer Usage by Database) +-- This make take some time to run on a busy instance +WITH AggregateBufferPoolUsage +AS +(SELECT DB_NAME(database_id) AS [Database Name], +CAST(COUNT(*) * 8/1024.0 AS DECIMAL (10,2)) AS [CachedSize] +FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) +WHERE database_id <> 32767 -- ResourceDB +GROUP BY DB_NAME(database_id)) +SELECT ROW_NUMBER() OVER(ORDER BY CachedSize DESC) AS [Buffer Pool Rank], [Database Name], CachedSize AS [Cached Size (MB)], + CAST(CachedSize / SUM(CachedSize) OVER() * 100.0 AS DECIMAL(5,2)) AS [Buffer Pool Percent] +FROM AggregateBufferPoolUsage +ORDER BY [Buffer Pool Rank] OPTION (RECOMPILE); +------ + +-- Tells you how much memory (in the buffer pool) +-- is being used by each database on the instance + + +-- Clear Wait Stats with this command +-- DBCC SQLPERF('sys.dm_os_wait_stats', CLEAR); + +-- Isolate top waits for server instance since last restart or wait statistics clear (Query 37) (Top Waits) +WITH [Waits] +AS (SELECT wait_type, wait_time_ms/ 1000.0 AS [WaitS], + (wait_time_ms - signal_wait_time_ms) / 1000.0 AS [ResourceS], + signal_wait_time_ms / 1000.0 AS [SignalS], + waiting_tasks_count AS [WaitCount], + 100.0 * wait_time_ms / SUM (wait_time_ms) OVER() AS [Percentage], + ROW_NUMBER() OVER(ORDER BY wait_time_ms DESC) AS [RowNum] + FROM sys.dm_os_wait_stats WITH (NOLOCK) + WHERE [wait_type] NOT IN ( + N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', + N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', + N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', + N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', + N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', + N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', + N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', + N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', + N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', + N'PREEMPTIVE_OS_QUERYREGISTRY', + N'PREEMPTIVE_HADR_LEASE_MECHANISM', N'PREEMPTIVE_SP_SERVER_DIAGNOSTICS', + N'PWAIT_ALL_COMPONENTS_INITIALIZED', + N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', + N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', + N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', + N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', + N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', + N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', + N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', + N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', + N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', + N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') + AND waiting_tasks_count > 0) +SELECT + MAX (W1.wait_type) AS [WaitType], + CAST (MAX (W1.Percentage) AS DECIMAL (5,2)) AS [Wait Percentage], + CAST ((MAX (W1.WaitS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgWait_Sec], + CAST ((MAX (W1.ResourceS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgRes_Sec], + CAST ((MAX (W1.SignalS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgSig_Sec], + CAST (MAX (W1.WaitS) AS DECIMAL (16,2)) AS [Wait_Sec], + CAST (MAX (W1.ResourceS) AS DECIMAL (16,2)) AS [Resource_Sec], + CAST (MAX (W1.SignalS) AS DECIMAL (16,2)) AS [Signal_Sec], + MAX (W1.WaitCount) AS [Wait Count], + CAST (N'https://www.sqlskills.com/help/waits/' + W1.wait_type AS XML) AS [Help/Info URL] +FROM Waits AS W1 +INNER JOIN Waits AS W2 +ON W2.RowNum <= W1.RowNum +GROUP BY W1.RowNum, W1.wait_type +HAVING SUM (W2.Percentage) - MAX (W1.Percentage) < 99 -- percentage threshold +OPTION (RECOMPILE); +------ + +-- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure + +-- SQL Server Wait Types Library (Paul Randal) +-- https://www.sqlskills.com/help/waits/ + +-- The SQL Server Wait Type Repository +-- http://blogs.msdn.com/b/psssql/archive/2009/11/03/the-sql-server-wait-type-repository.aspx + +-- Wait statistics, or please tell me where it hurts +-- http://www.sqlskills.com/blogs/paul/wait-statistics-or-please-tell-me-where-it-hurts/ + +-- SQL Server 2005 Performance Tuning using the Waits and Queues +-- http://technet.microsoft.com/en-us/library/cc966413.aspx + +-- sys.dm_os_wait_stats (Transact-SQL) +-- http://msdn.microsoft.com/en-us/library/ms179984(v=sql.120).aspx + + + +-- Get a count of SQL connections by IP address (Query 38) (Connection Counts by IP Address) +SELECT ec.client_net_address, es.[program_name], es.[host_name], es.login_name, +COUNT(ec.session_id) AS [connection count] +FROM sys.dm_exec_sessions AS es WITH (NOLOCK) +INNER JOIN sys.dm_exec_connections AS ec WITH (NOLOCK) +ON es.session_id = ec.session_id +GROUP BY ec.client_net_address, es.[program_name], es.[host_name], es.login_name +ORDER BY ec.client_net_address, es.[program_name] OPTION (RECOMPILE); +------ + +-- This helps you figure where your database load is coming from +-- and verifies connectivity from other machines + +-- Solving Connectivity errors to SQL Server +-- https://bit.ly/2EgzoD0 + + + +-- Get Average Task Counts (run multiple times) (Query 39) (Avg Task Counts) +SELECT AVG(current_tasks_count) AS [Avg Task Count], +AVG(work_queue_count) AS [Avg Work Queue Count], +AVG(runnable_tasks_count) AS [Avg Runnable Task Count], +AVG(pending_disk_io_count) AS [Avg Pending DiskIO Count] +FROM sys.dm_os_schedulers WITH (NOLOCK) +WHERE scheduler_id < 255 OPTION (RECOMPILE); +------ + +-- Sustained values above 10 suggest further investigation in that area +-- High Avg Task Counts are often caused by blocking/deadlocking or other resource contention + +-- Sustained values above 1 suggest further investigation in that area +-- High Avg Runnable Task Counts are a good sign of CPU pressure +-- High Avg Pending DiskIO Counts are a sign of disk pressure + +-- How to Do Some Very Basic SQL Server Monitoring +-- https://bit.ly/2q3Btgt + + + +-- Detect blocking (run multiple times) (Query 40) (Detect Blocking) +SELECT t1.resource_type AS [lock type], DB_NAME(resource_database_id) AS [database], +t1.resource_associated_entity_id AS [blk object],t1.request_mode AS [lock req], -- lock requested +t1.request_session_id AS [waiter sid], t2.wait_duration_ms AS [wait time], -- spid of waiter +(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK) -- get sql for waiter +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) +WHERE r.session_id = t1.request_session_id) AS [waiter_batch], +(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, + (CASE WHEN r.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE r.statement_end_offset END - r.statement_start_offset)/2) +FROM sys.dm_exec_requests AS r WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt +WHERE r.session_id = t1.request_session_id) AS [waiter_stmt], -- statement blocked +t2.blocking_session_id AS [blocker sid], -- spid of blocker +(SELECT [text] FROM sys.sysprocesses AS p -- get sql for blocker +CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) +WHERE p.spid = t2.blocking_session_id) AS [blocker_batch] +FROM sys.dm_tran_locks AS t1 WITH (NOLOCK) +INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK) +ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE); +------ + +-- Helps troubleshoot blocking and deadlocking issues +-- The results will change from second to second on a busy system +-- You should run this query multiple times when you see signs of blocking + + + +-- Get CPU Utilization History for last 256 minutes (in one minute intervals) (Query 41) (CPU Utilization History) +DECLARE @ts_now bigint = (SELECT cpu_ticks/(cpu_ticks/ms_ticks) FROM sys.dm_os_sys_info WITH (NOLOCK)); + +SELECT TOP(256) SQLProcessUtilization AS [SQL Server Process CPU Utilization], + SystemIdle AS [System Idle Process], + 100 - SystemIdle - SQLProcessUtilization AS [Other Process CPU Utilization], + DATEADD(ms, -1 * (@ts_now - [timestamp]), GETDATE()) AS [Event Time] +FROM (SELECT record.value('(./Record/@id)[1]', 'int') AS record_id, + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') + AS [SystemIdle], + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', 'int') + AS [SQLProcessUtilization], [timestamp] + FROM (SELECT [timestamp], CONVERT(xml, record) AS [record] + FROM sys.dm_os_ring_buffers WITH (NOLOCK) + WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' + AND record LIKE N'%%') AS x) AS y +ORDER BY record_id DESC OPTION (RECOMPILE); +------ + +-- Look at the trend over the entire period +-- Also look at high sustained 'Other Process' CPU Utilization values +-- Note: This query sometimes gives inaccurate results (negative values) +-- on high core count (> 64 cores) systems + + +-- Get top total worker time queries for entire instance (Query 42) (Top Worker Time Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_worker_time AS [Total Worker Time], qs.min_worker_time AS [Min Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.max_worker_time AS [Max Worker Time], +qs.min_elapsed_time AS [Min Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.max_elapsed_time AS [Max Elapsed Time], +qs.min_logical_reads AS [Min Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.max_logical_reads AS [Max Logical Reads], +qs.execution_count AS [Execution Count], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + + +-- Helps you find the most expensive queries from a CPU perspective across the entire instance +-- Can also help track down parameter sniffing issues + + + +-- Page Life Expectancy (PLE) value for each NUMA node in current instance (Query 43) (PLE by NUMA Node) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], instance_name, cntr_value AS [Page Life Expectancy] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Buffer Node%' -- Handles named instances +AND counter_name = N'Page life expectancy' OPTION (RECOMPILE); +------ + +-- PLE is a good measurement of internal memory pressure +-- Higher PLE is better. Watch the trend over time, not the absolute value +-- This will only return one row for non-NUMA systems + +-- Page Life Expectancy isnt what you think +-- https://bit.ly/2EgynLa + + +-- Memory Grants Pending value for current instance (Query 44) (Memory Grants Pending) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], cntr_value AS [Memory Grants Pending] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Memory Manager%' -- Handles named instances +AND counter_name = N'Memory Grants Pending' OPTION (RECOMPILE); +------ + +-- Run multiple times, and run periodically if you suspect you are under memory pressure +-- Memory Grants Pending above zero for a sustained period is a very strong indicator of internal memory pressure + + +-- Memory Clerk Usage for instance (Query 45) (Memory Clerk Usage) +-- Look for high value for CACHESTORE_SQLCP (Ad-hoc query plans) +SELECT TOP(10) mc.[type] AS [Memory Clerk Type], + CAST((SUM(mc.pages_kb)/1024.0) AS DECIMAL (15,2)) AS [Memory Usage (MB)] +FROM sys.dm_os_memory_clerks AS mc WITH (NOLOCK) +GROUP BY mc.[type] +ORDER BY SUM(mc.pages_kb) DESC OPTION (RECOMPILE); +------ + +-- MEMORYCLERK_SQLBUFFERPOOL was new for SQL Server 2012. It should be your highest consumer of memory + +-- CACHESTORE_SQLCP SQL Plans +-- These are cached SQL statements or batches that aren't in stored procedures, functions and triggers +-- Watch out for high values for CACHESTORE_SQLCP +-- Enabling 'optimize for ad hoc workloads' at the instance level can help reduce this +-- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this + +-- CACHESTORE_OBJCP Object Plans +-- These are compiled plans for stored procedures, functions and triggers + + + +-- Find single-use, ad-hoc and prepared queries that are bloating the plan cache (Query 46) (Ad hoc Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], t.[text] AS [Query Text], +cp.objtype AS [Object Type], cp.cacheobjtype AS [Cache Object Type], +cp.size_in_bytes/1024 AS [Plan Size in KB] +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +WHERE cp.cacheobjtype = N'Compiled Plan' +AND cp.objtype IN (N'Adhoc', N'Prepared') +AND cp.usecounts = 1 +ORDER BY cp.size_in_bytes DESC, DB_NAME(t.[dbid]) OPTION (RECOMPILE); +------ + +-- Gives you the text, type and size of single-use ad-hoc and prepared queries that waste space in the plan cache +-- Enabling 'optimize for ad hoc workloads' for the instance can help (SQL Server 2008 and above only) +-- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this +-- Enabling forced parameterization for the database can help, but test first! + +-- Plan cache, adhoc workloads and clearing the single-use plan cache bloat +-- https://www.sqlskills.com/blogs/kimberly/plan-cache-adhoc-workloads-and-clearing-the-single-use-plan-cache-bloat/ + + +-- Get top total logical reads queries for entire instance (Query 47) (Top Logical Reads Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_logical_reads AS [Total Logical Reads], +qs.min_logical_reads AS [Min Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.max_logical_reads AS [Max Logical Reads], +qs.min_worker_time AS [Min Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.max_worker_time AS [Max Worker Time], +qs.min_elapsed_time AS [Min Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.max_elapsed_time AS [Max Elapsed Time], +qs.execution_count AS [Execution Count], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + + +-- Helps you find the most expensive queries from a memory perspective across the entire instance +-- Can also help track down parameter sniffing issues + + +-- Get top average elapsed time queries for entire instance (Query 48) (Top Avg Elapsed Time Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.min_elapsed_time, qs.max_elapsed_time, qs.last_elapsed_time, +qs.execution_count AS [Execution Count], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.total_physical_reads/qs.execution_count AS [Avg Physical Reads], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_elapsed_time/qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Helps you find the highest average elapsed time queries across the entire instance +-- Can also help track down parameter sniffing issues + + + + +-- Database specific queries ***************************************************************** + +-- **** Please switch to a user database that you are interested in! ***** +--USE YourDatabaseName; -- make sure to change to an actual database on your instance, not the master system database +--GO + +-- Individual File Sizes and space available for current database (Query 49) (File Sizes and Space) +SELECT f.name AS [File Name] , f.physical_name AS [Physical Name], +CAST((f.size/128.0) AS DECIMAL(15,2)) AS [Total Size in MB], +CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) +AS [Available Space In MB], f.[file_id], fg.name AS [Filegroup Name], +f.is_percent_growth, f.growth, fg.is_default, fg.is_read_only +FROM sys.database_files AS f WITH (NOLOCK) +LEFT OUTER JOIN sys.filegroups AS fg WITH (NOLOCK) +ON f.data_space_id = fg.data_space_id +ORDER BY f.[file_id] OPTION (RECOMPILE); +------ + +-- Look at how large and how full the files are and where they are located +-- Make sure the transaction log is not full!! + + +-- I/O Statistics by file for the current database (Query 50) (IO Stats By File) +SELECT DB_NAME(DB_ID()) AS [Database Name], df.name AS [Logical Name], vfs.[file_id], df.type_desc, +df.physical_name AS [Physical Name], CAST(vfs.size_on_disk_bytes/1048576.0 AS DECIMAL(16, 2)) AS [Size on Disk (MB)], +vfs.num_of_reads, vfs.num_of_writes, vfs.io_stall_read_ms, vfs.io_stall_write_ms, +CAST(100. * vfs.io_stall_read_ms/(vfs.io_stall_read_ms + vfs.io_stall_write_ms) AS DECIMAL(16,1)) AS [IO Stall Reads Pct], +CAST(100. * vfs.io_stall_write_ms/(vfs.io_stall_write_ms + vfs.io_stall_read_ms) AS DECIMAL(16,1)) AS [IO Stall Writes Pct], +(vfs.num_of_reads + vfs.num_of_writes) AS [Writes + Reads], +CAST(vfs.num_of_bytes_read/1048576.0 AS DECIMAL(16, 2)) AS [MB Read], +CAST(vfs.num_of_bytes_written/1048576.0 AS DECIMAL(16, 2)) AS [MB Written], +CAST(100. * vfs.num_of_reads/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(16,1)) AS [# Reads Pct], +CAST(100. * vfs.num_of_writes/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(16,1)) AS [# Write Pct], +CAST(100. * vfs.num_of_bytes_read/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(16,1)) AS [Read Bytes Pct], +CAST(100. * vfs.num_of_bytes_written/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(16,1)) AS [Written Bytes Pct] +FROM sys.dm_io_virtual_file_stats(DB_ID(), NULL) AS vfs +INNER JOIN sys.database_files AS df WITH (NOLOCK) +ON vfs.[file_id]= df.[file_id] OPTION (RECOMPILE); +------ + +-- This helps you characterize your workload better from an I/O perspective for this database +-- It helps you determine whether you has an OLTP or DW/DSS type of workload + + + +-- Get most frequently executed queries for this database (Query 51) (Query Execution Counts) +SELECT TOP(50) LEFT(t.[text], 50) AS [Short Query Text], qs.execution_count AS [Execution Count], +qs.total_logical_reads AS [Total Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.total_worker_time AS [Total Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.total_elapsed_time AS [Total Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +WHERE t.dbid = DB_ID() +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + + +-- Queries 50 through 55 are the "Bad Man List" for stored procedures +-- Top Cached SPs By Execution Count (Query 52) (SP Execution Counts) +SELECT TOP(100) p.name AS [SP Name], qs.execution_count AS [Execution Count], +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Tells you which cached stored procedures are called the most often +-- This helps you characterize and baseline your workload + + +-- Top Cached SPs By Avg Elapsed Time (Query 53) (SP Avg Elapsed Time) +SELECT TOP(25) p.name AS [SP Name], qs.min_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +qs.max_elapsed_time, qs.last_elapsed_time, qs.total_elapsed_time, qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], +qs.total_worker_time AS [TotalWorkerTime], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find high average elapsed time cached stored procedures that +-- may be easy to optimize with standard query tuning techniques + + + +-- Top Cached SPs By Total Worker time. Worker time relates to CPU cost (Query 54) (SP Worker Time) +SELECT TOP(25) p.name AS [SP Name], qs.total_worker_time AS [TotalWorkerTime], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a CPU perspective +-- You should look at this if you see signs of CPU pressure + + +-- Top Cached SPs By Total Logical Reads. Logical reads relate to memory pressure (Query 55) (SP Logical Reads) +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_reads AS [TotalLogicalReads], +qs.total_logical_reads/qs.execution_count AS [AvgLogicalReads],qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a memory perspective +-- You should look at this if you see signs of memory pressure + + +-- Top Cached SPs By Total Physical Reads. Physical reads relate to disk read I/O pressure (Query 56) (SP Physical Reads) +SELECT TOP(25) p.name AS [SP Name],qs.total_physical_reads AS [TotalPhysicalReads], +qs.total_physical_reads/qs.execution_count AS [AvgPhysicalReads], qs.execution_count, +qs.total_logical_reads,qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND qs.total_physical_reads > 0 +ORDER BY qs.total_physical_reads DESC, qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a read I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + + +-- Top Cached SPs By Total Logical Writes (Query 57) (SP Logical Writes) +-- Logical writes relate to both memory and disk I/O pressure +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_writes AS [TotalLogicalWrites], +qs.total_logical_writes/qs.execution_count AS [AvgLogicalWrites], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND qs.total_logical_writes > 0 +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_logical_writes DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a write I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + +-- Lists the top statements by average input/output usage for the current database (Query 58) (Top IO Statements) +SELECT TOP(50) OBJECT_NAME(qt.objectid, dbid) AS [SP Name], +(qs.total_logical_reads + qs.total_logical_writes) /qs.execution_count AS [Avg IO], qs.execution_count AS [Execution Count], +SUBSTRING(qt.[text],qs.statement_start_offset/2, + (CASE + WHEN qs.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE qs.statement_end_offset + END - qs.statement_start_offset)/2) AS [Query Text] +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt +WHERE qt.[dbid] = DB_ID() +ORDER BY [Avg IO] DESC OPTION (RECOMPILE); +------ + +-- Helps you find the most expensive statements for I/O by SP + + + +-- Possible Bad NC Indexes (writes > reads) (Query 59) (Bad NC Indexes) +SELECT OBJECT_NAME(s.[object_id]) AS [Table Name], i.name AS [Index Name], i.index_id, +i.is_disabled, i.is_hypothetical, i.has_filter, i.fill_factor, +s.user_updates AS [Total Writes], s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], +s.user_updates - (s.user_seeks + s.user_scans + s.user_lookups) AS [Difference] +FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON s.[object_id] = i.[object_id] +AND i.index_id = s.index_id +WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 +AND s.database_id = DB_ID() +AND s.user_updates > (s.user_seeks + s.user_scans + s.user_lookups) +AND i.index_id > 1 AND i.[type_desc] = N'NONCLUSTERED' +AND i.is_primary_key = 0 AND i.is_unique_constraint = 0 AND i.is_unique = 0 +ORDER BY [Difference] DESC, [Total Writes] DESC, [Total Reads] ASC OPTION (RECOMPILE); +------ + +-- Look for indexes with high numbers of writes and zero or very low numbers of reads +-- Consider your complete workload, and how long your instance has been running +-- Investigate further before dropping an index! + + +-- Missing Indexes for current database by Index Advantage (Query 60) (Missing Indexes) +SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], +COUNT(1) OVER(PARTITION BY mid.[statement]) AS [missing_indexes_for_table], +COUNT(1) OVER(PARTITION BY mid.[statement], equality_columns) AS [similar_missing_indexes_for_table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, +CONVERT(decimal(18,2), migs.avg_total_user_cost) AS [avg_total_user_cost], migs.avg_user_impact, +OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows] +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON p.[object_id] = mid.[object_id] +WHERE mid.database_id = DB_ID() +AND p.index_id < 2 +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Look at index advantage, last user seek time, number of user seeks to help determine source and importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + + +-- Find missing index warnings for cached plans in the current database (Query 61) (Missing Index Warnings) +-- Note: This query could take some time on a busy instance +SELECT TOP(25) OBJECT_NAME(objectid) AS [ObjectName], + cp.objtype, cp.usecounts, cp.size_in_bytes, query_plan +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp +WHERE CAST(query_plan AS NVARCHAR(MAX)) LIKE N'%MissingIndex%' +AND dbid = DB_ID() +ORDER BY cp.usecounts DESC OPTION (RECOMPILE); +------ + +-- Helps you connect missing indexes to specific stored procedures or queries +-- This can help you decide whether to add them or not + + +-- Breaks down buffers used by current database by object (table, index) in the buffer cache (Query 62) (Buffer Usage) +-- Note: This query could take some time on a busy instance +SELECT OBJECT_NAME(p.[object_id]) AS [Object Name], p.index_id, +CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], +COUNT(*) AS [BufferCount], p.[Rows] AS [Row Count], +p.data_compression_desc AS [Compression Type] +FROM sys.allocation_units AS a WITH (NOLOCK) +INNER JOIN sys.dm_os_buffer_descriptors AS b WITH (NOLOCK) +ON a.allocation_unit_id = b.allocation_unit_id +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON a.container_id = p.hobt_id +WHERE b.database_id = CONVERT(int, DB_ID()) +AND p.[object_id] > 100 +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'plan_%' +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'sys%' +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'xml_index_nodes%' +GROUP BY p.[object_id], p.index_id, p.data_compression_desc, p.[Rows] +ORDER BY [BufferCount] DESC OPTION (RECOMPILE); +------ + +-- Tells you what tables and indexes are using the most memory in the buffer cache +-- It can help identify possible candidates for data compression + + +-- Get Table names, row counts, and compression status for clustered index or heap (Query 63) (Table Sizes) +SELECT SCHEMA_NAME(o.Schema_ID) AS [Schema Name], OBJECT_NAME(p.object_id) AS [ObjectName], +SUM(p.Rows) AS [RowCount], data_compression_desc AS [CompressionType] +FROM sys.partitions AS p WITH (NOLOCK) +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON p.object_id = o.object_id +WHERE index_id < 2 --ignore the partitions from the non-clustered index if any +AND OBJECT_NAME(p.object_id) NOT LIKE N'sys%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'spt_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'queue_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filestream_tombstone%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'fulltext%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'ifts_comp_fragment%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filetable_updates%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'xml_index_nodes%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'sqlagent_job%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'plan_persist%' +GROUP BY SCHEMA_NAME(o.Schema_ID), p.object_id, data_compression_desc +ORDER BY SUM(p.Rows) DESC OPTION (RECOMPILE); +------ + +-- Gives you an idea of table sizes, and possible data compression opportunities + + + +-- Get some key table properties (Query 64) (Table Properties) +SELECT OBJECT_NAME(t.[object_id]) AS [ObjectName], p.[rows] AS [Table Rows], p.index_id, + p.data_compression_desc AS [Index Data Compression], + t.create_date, t.lock_on_bulk_load, t.is_replicated, t.has_replication_filter, + t.is_tracked_by_cdc, t.lock_escalation_desc, t.is_filetable +FROM sys.tables AS t WITH (NOLOCK) +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON t.[object_id] = p.[object_id] +WHERE OBJECT_NAME(t.[object_id]) NOT LIKE N'sys%' +ORDER BY OBJECT_NAME(t.[object_id]), p.index_id OPTION (RECOMPILE); +------ + +-- Gives you some good information about your tables + + + +-- When were Statistics last updated on all indexes? (Query 65) (Statistics Update) +SELECT SCHEMA_NAME(o.Schema_ID) + N'.' + o.NAME AS [Object Name], o.type_desc AS [Object Type], + i.name AS [Index Name], STATS_DATE(i.[object_id], i.index_id) AS [Statistics Date], + s.auto_created, s.no_recompute, s.user_created, s.is_temporary, + st.row_count, st.used_page_count +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON o.[object_id] = i.[object_id] +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.stats_id +INNER JOIN sys.dm_db_partition_stats AS st WITH (NOLOCK) +ON o.[object_id] = st.[object_id] +AND i.[index_id] = st.[index_id] +WHERE o.[type] IN ('U', 'V') +AND st.row_count > 0 +ORDER BY STATS_DATE(i.[object_id], i.index_id) DESC OPTION (RECOMPILE); +------ + +-- Helps discover possible problems with out-of-date statistics +-- Also gives you an idea which indexes are the most active + +-- sys.stats (Transact-SQL) +-- https://msdn.microsoft.com/en-us/library/ms177623.aspx + + + +-- Look at most frequently modified indexes and statistics (Query 66) (Volatile Indexes) +SELECT o.[name] AS [Object Name], o.[object_id], o.[type_desc], s.[name] AS [Statistics Name], + s.stats_id, s.no_recompute, s.auto_created, s.is_temporary, + sp.modification_counter, sp.[rows], sp.rows_sampled, sp.last_updated +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON s.object_id = o.object_id +CROSS APPLY sys.dm_db_stats_properties(s.object_id, s.stats_id) AS sp +WHERE o.[type_desc] NOT IN (N'SYSTEM_TABLE', N'INTERNAL_TABLE') +AND sp.modification_counter > 0 +ORDER BY sp.modification_counter DESC, o.name OPTION (RECOMPILE); +------ + +-- This helps you understand your workload and make better decisions about +-- things like data compression and adding new indexes to a table + + + +-- Get fragmentation info for all indexes above a certain size in the current database (Query 67) (Index Fragmentation) +-- Note: This query could take some time on a very large database +SELECT DB_NAME(ps.database_id) AS [Database Name], SCHEMA_NAME(o.[schema_id]) AS [Schema Name], +OBJECT_NAME(ps.OBJECT_ID) AS [Object Name], i.[name] AS [Index Name], ps.index_id, +ps.index_type_desc, ps.avg_fragmentation_in_percent, +ps.fragment_count, ps.page_count, i.fill_factor, i.has_filter, +i.filter_definition, i.[allow_page_locks] +FROM sys.dm_db_index_physical_stats(DB_ID(),NULL, NULL, NULL , N'LIMITED') AS ps +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ps.[object_id] = i.[object_id] +AND ps.index_id = i.index_id +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON i.[object_id] = o.[object_id] +WHERE ps.database_id = DB_ID() +AND ps.page_count > 2500 +ORDER BY ps.avg_fragmentation_in_percent DESC OPTION (RECOMPILE); +------ + +-- Helps determine whether you have framentation in your relational indexes +-- and how effective your index maintenance strategy is + + +--- Index Read/Write stats (all tables in current DB) ordered by Reads (Query 68) (Overall Index Usage - Reads) +SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.[name] AS [IndexName], i.index_id, + s.user_seeks, s.user_scans, s.user_lookups, + s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], + s.user_updates AS [Writes], + i.[type_desc] AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, + s.last_user_scan, s.last_user_lookup, s.last_user_seek +FROM sys.indexes AS i WITH (NOLOCK) +LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 +ORDER BY s.user_seeks + s.user_scans + s.user_lookups DESC OPTION (RECOMPILE); -- Order by reads +------ + +-- Show which indexes in the current database are most active for Reads + + +--- Index Read/Write stats (all tables in current DB) ordered by Writes (Query 69) (Overall Index Usage - Writes) +SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.[name] AS [IndexName], i.index_id, + s.user_updates AS [Writes], s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], + i.[type_desc] AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, + s.last_system_update, s.last_user_update +FROM sys.indexes AS i WITH (NOLOCK) +LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 +ORDER BY s.user_updates DESC OPTION (RECOMPILE); -- Order by writes +------ + +-- Show which indexes in the current database are most active for Writes + + +-- Get lock waits for current database (Query 70) (Lock Waits) +SELECT o.name AS [table_name], i.name AS [index_name], ios.index_id, ios.partition_number, + SUM(ios.row_lock_wait_count) AS [total_row_lock_waits], + SUM(ios.row_lock_wait_in_ms) AS [total_row_lock_wait_in_ms], + SUM(ios.page_lock_wait_count) AS [total_page_lock_waits], + SUM(ios.page_lock_wait_in_ms) AS [total_page_lock_wait_in_ms], + SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) AS [total_lock_wait_in_ms] +FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) AS ios +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON ios.[object_id] = o.[object_id] +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ios.[object_id] = i.[object_id] +AND ios.index_id = i.index_id +WHERE o.[object_id] > 100 +GROUP BY o.name, i.name, ios.index_id, ios.partition_number +HAVING SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) > 0 +ORDER BY total_lock_wait_in_ms DESC OPTION (RECOMPILE); +------ + +-- This query is helpful for troubleshooting blocking and deadlocking issues + + +-- Look at recent Full backups for the current database (Query 71) (Recent Full Backups) +SELECT TOP (30) bs.machine_name, bs.server_name, bs.database_name AS [Database Name], bs.recovery_model, +CONVERT (BIGINT, bs.backup_size / 1048576 ) AS [Uncompressed Backup Size (MB)], +CONVERT (BIGINT, bs.compressed_backup_size / 1048576 ) AS [Compressed Backup Size (MB)], +CONVERT (NUMERIC (20,2), (CONVERT (FLOAT, bs.backup_size) / +CONVERT (FLOAT, bs.compressed_backup_size))) AS [Compression Ratio], bs.has_backup_checksums, bs.is_copy_only, +DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) AS [Backup Elapsed Time (sec)], +bs.backup_finish_date AS [Backup Finish Date], bmf.physical_device_name AS [Backup Location], bmf.physical_block_size +FROM msdb.dbo.backupset AS bs WITH (NOLOCK) +INNER JOIN msdb.dbo.backupmediafamily AS bmf WITH (NOLOCK) +ON bs.media_set_id = bmf.media_set_id +WHERE bs.database_name = DB_NAME(DB_ID()) +AND bs.[type] = 'D' -- Change to L if you want Log backups +ORDER BY bs.backup_finish_date DESC OPTION (RECOMPILE); +------ + +-- Are your backup sizes and times changing over time? +-- Are you using backup compression? +-- Are you using backup checksums? +-- Are you doing copy_only backups? +-- Have you done any backup tuning with striped backups, or changing the parameters of the backup command? + + +-- These five Pluralsight Courses go into more detail about how to run these queries and interpret the results + +-- SQL Server 2017: Diagnosing Performance Issues with DMVs +-- https://bit.ly/2FqCeti + +-- SQL Server 2017: Diagnosing Configuration Issues with DMVs +-- https://bit.ly/2MSUDUL + +-- SQL Server 2014 DMV Diagnostic Queries Part 1 +-- https://bit.ly/2plxCer + +-- SQL Server 2014 DMV Diagnostic Queries Part 2 +-- https://bit.ly/2IuJpzI + +-- SQL Server 2014 DMV Diagnostic Queries Part 3 +-- https://bit.ly/2FIlCPb + + + +-- Sign up for Microsoft Visual Studio Dev Essentials and get a free three month pass to Pluralsight + +-- Microsoft Visual Studio Dev Essentials +-- http://bit.ly/1q6xbDL + + +-- Sign up for Microsoft Azure Essentials and get lots of free Azure usage credits, MCP exam voucher, three month Pluralsight subscription + +-- Microsoft Azure Essentials +-- https://bit.ly/2JMWe8x + + +-- August 2017 blog series about upgrading and migrating to SQL Server 2016/2017 +-- https://bit.ly/2ftKVrX diff --git a/Scripts/SQL Server 2014 Diagnostic Information Queries.sql b/Scripts/SQL Server 2014 Diagnostic Information Queries.sql index 0bae1eba..2015a40a 100644 --- a/Scripts/SQL Server 2014 Diagnostic Information Queries.sql +++ b/Scripts/SQL Server 2014 Diagnostic Information Queries.sql @@ -1,1391 +1,1867 @@ - --- SQL Server 2014 Diagnostic Information Queries --- Glenn Berry --- May 2016 --- Last Modified: May 11, 2016 --- http://sqlserverperformance.wordpress.com/ --- http://sqlskills.com/blogs/glenn/ --- Twitter: GlennAlanBerry - --- Please listen to my Pluralsight courses --- http://www.pluralsight.com/author/glenn-berry - --- Please make sure you are using the correct version of these diagnostic queries for your version of SQL Server - - ---****************************************************************************** ---* Copyright (C) 2016 Glenn Berry, SQLskills.com ---* All rights reserved. ---* ---* For more scripts and sample code, check out ---* http://sqlskills.com/blogs/glenn ---* ---* You may alter this code for your own *non-commercial* purposes. You may ---* republish altered code as long as you include this copyright and give due credit. ---* ---* ---* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ---* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED ---* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A ---* PARTICULAR PURPOSE. ---* ---****************************************************************************** - --- Check the major product version to see if it is SQL Server 2014 CTP2 or greater -IF NOT EXISTS (SELECT * WHERE CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')) LIKE '12%') - BEGIN - DECLARE @ProductVersion varchar(128) = CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')); - RAISERROR ('Script does not match the ProductVersion [%s] of this instance. Many of these queries may not work on this version.' , 18 , 16 , @ProductVersion); - END - ELSE - PRINT N'You have the correct major version of SQL Server for this diagnostic information script'; - - --- Instance level queries ******************************* - --- SQL and OS Version information for current instance (Query 1) (Version Info) -SELECT @@SERVERNAME AS [Server Name], @@VERSION AS [SQL Server and OS Version Info]; - --- SQL Server 2014 RTM Branch Builds SQL Server 2014 SP1 Branch Builds --- Build Description Release Date Build Description Release Date --- 11.0.9120 CTP1 6/2/2013 --- 12.0.1524 CTP2 10/15/2013 --- 12.0.2000 RTM 4/1/2014 --- 12.0.2342 CU1 4/21/2014 --- 12.0.2370 CU2 6/27/2014 --- 12.0.2402 CU3 8/18/2014 --- 12.0.2430 CU4 10/21/2014 --- 12.0.2456 CU5 12/17/2014 ----> 12.0.4100 SP1 RTM 5/4/2015 --- 12.0.2474 CU5 + COD HF 2/3/2015 --- 12.0.2480 CU6 2/16/2015 --- 12.0.2495 CU7 4/20/2015 --- 12.0.2546 CU8 6/19/2015 12.0.4416 SP1 CU1 6/19/2015 --- 12.0.2553 CU9 8/17/2015 12.0.4422 SP1 CU2 8/17/2015 --- 12.0.2556 CU10 10/19/2015 12.0.4427 SP1 CU3 10/19/2015 --- 12.0.2560 CU11 12/21/2015 12.0.4436 SP1 CU4 12/21/2015 --- 12.0.2564 CU12 2/22/2016 12.0.4439 SP1 CU5 2/22/2016 --- 12.0.2568 CU13 4/18/2016 12.0.4449 SP1 CU6 4/18/2016 - --- How to determine the version, edition and update level of SQL Server and its components --- https://support.microsoft.com/en-us/kb/321185 - --- SQL Server 2014 build versions --- http://support.microsoft.com/kb/2936603 - --- Recommended updates and configuration options for SQL Server 2012 and SQL Server 2014 used with high-performance workloads --- http://support.microsoft.com/kb/2964518/EN-US - --- Performance and Stability Related Fixes in Post-SQL Server 2014 RTM Builds --- http://www.sqlskills.com/blogs/glenn/performance-and-stability-related-fixes-in-post-sql-server-2014-rtm-builds/ - --- Performance and Stability Related Fixes in Post-SQL Server 2014 SP1 Builds --- http://www.sqlskills.com/blogs/glenn/performance-and-stability-related-fixes-in-post-sql-server-2014-sp1-builds/ - --- Announcing updates to the SQL Server Incremental Servicing Model (ISM) --- https://blogs.msdn.microsoft.com/sqlreleaseservices/announcing-updates-to-the-sql-server-incremental-servicing-model-ism/ - - --- Get socket, physical core and logical core count from the SQL Server Error log. (Query 2) (Core Counts) --- This query might take a few seconds if you have not recycled your error log recently -EXEC sys.xp_readerrorlog 0, 1, N'detected', N'socket'; - --- This can help you determine the exact core counts used by SQL Server and whether HT is enabled or not --- It can also help you confirm your SQL Server licensing model --- Be on the lookout for this message "using 20 logical processors based on SQL Server licensing" --- which means grandfathered Server/CAL licensing --- This query will return no results if your error log has been recycled since the instance was last started - - - --- Get selected server properties (Query 3) (Server Properties) -SELECT SERVERPROPERTY('MachineName') AS [MachineName], -SERVERPROPERTY('ServerName') AS [ServerName], -SERVERPROPERTY('InstanceName') AS [Instance], -SERVERPROPERTY('IsClustered') AS [IsClustered], -SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS [ComputerNamePhysicalNetBIOS], -SERVERPROPERTY('Edition') AS [Edition], -SERVERPROPERTY('ProductLevel') AS [ProductLevel], -- What servicing branch (RTM/SP/CU) -SERVERPROPERTY('ProductUpdateLevel') AS [ProductUpdateLevel], -- Within a servicing branch, what CU# is applied -SERVERPROPERTY('ProductVersion') AS [ProductVersion], -SERVERPROPERTY('ProductMajorVersion') AS [ProductMajorVersion], -SERVERPROPERTY('ProductMinorVersion') AS [ProductMinorVersion], -SERVERPROPERTY('ProductBuild') AS [ProductBuild], -SERVERPROPERTY('ProductBuildType') AS [ProductBuildType], -- Is this a GDR or OD hotfix (NULL if on a CU build) -SERVERPROPERTY('ProductUpdateReference') AS [ProductUpdateReference], -- KB article number that is applicable for this build -SERVERPROPERTY('ProcessID') AS [ProcessID], -SERVERPROPERTY('Collation') AS [Collation], -SERVERPROPERTY('IsFullTextInstalled') AS [IsFullTextInstalled], -SERVERPROPERTY('IsIntegratedSecurityOnly') AS [IsIntegratedSecurityOnly], -SERVERPROPERTY('FilestreamConfiguredLevel') AS [FilestreamConfiguredLevel], -SERVERPROPERTY('IsHadrEnabled') AS [IsHadrEnabled], -SERVERPROPERTY('HadrManagerStatus') AS [HadrManagerStatus], -SERVERPROPERTY('IsXTPSupported') AS [IsXTPSupported], -SERVERPROPERTY('InstanceDefaultDataPath') AS [InstanceDefaultDataPath], -SERVERPROPERTY('InstanceDefaultLogPath') AS [InstanceDefaultLogPath], -SERVERPROPERTY('BuildClrVersion') AS [Build CLR Version]; - --- This gives you a lot of useful information about your instance of SQL Server, --- such as the ProcessID for SQL Server and your collation --- Note: Some columns will be NULL on older SQL Server builds - - --- Get instance-level configuration values for instance (Query 4) (Configuration Values) -SELECT name, value, value_in_use, minimum, maximum, [description], is_dynamic, is_advanced -FROM sys.configurations WITH (NOLOCK) -ORDER BY name OPTION (RECOMPILE); - --- Focus on these settings: --- backup checksum default (should be 1) --- backup compression default (should be 1 in most cases) --- clr enabled (only enable if it is needed) --- cost threshold for parallelism (depends on your workload) --- lightweight pooling (should be zero) --- max degree of parallelism (depends on your workload and hardware) --- max server memory (MB) (set to an appropriate value, not the default) --- optimize for ad hoc workloads (should be 1) --- priority boost (should be zero) --- remote admin connections (should be 1) - - --- Returns a list of all global trace flags that are enabled (Query 5) (Global Trace Flags) -DBCC TRACESTATUS (-1); - --- If no global trace flags are enabled, no results will be returned. --- It is very useful to know what global trace flags are currently enabled as part of the diagnostic process. - --- Common trace flags that should be enabled in most cases --- TF 1118 - Helps alleviate allocation contention in tempdb, SQL Server allocates full extents to each database object, --- thereby eliminating the contention on SGAM pages (more important with older versions of SQL Server) --- Recommendations to reduce allocation contention in SQL Server tempdb database --- http://support2.microsoft.com/kb/2154845 --- TF 3226 - Supresses logging of successful database backup messages to the SQL Server Error Log --- TF 2371 - Lowers auto update statistics threshold for large tables --- http://blogs.msdn.com/b/saponsqlserver/archive/2011/09/07/changes-to-automatic-update-statistics-in-sql-server-traceflag-2371.aspx - - --- SQL Server query optimizer hotfix trace flag 4199 servicing model --- https://support.microsoft.com/en-us/kb/974006 - - - --- SQL Server Process Address space info (Query 6) (Process Memory) --- (shows whether locked pages is enabled, among other things) -SELECT physical_memory_in_use_kb/1024 AS [SQL Server Memory Usage (MB)], - large_page_allocations_kb, locked_page_allocations_kb, page_fault_count, - memory_utilization_percentage, available_commit_limit_kb, - process_physical_memory_low, process_virtual_memory_low -FROM sys.dm_os_process_memory WITH (NOLOCK) OPTION (RECOMPILE); - --- You want to see 0 for process_physical_memory_low --- You want to see 0 for process_virtual_memory_low --- This indicates that you are not under internal memory pressure - - - --- SQL Server Services information (Query 7) (SQL Server Services Info) -SELECT servicename, process_id, startup_type_desc, status_desc, -last_startup_time, service_account, is_clustered, cluster_nodename, [filename] -FROM sys.dm_server_services WITH (NOLOCK) OPTION (RECOMPILE); - --- Tells you the account being used for the SQL Server Service and the SQL Agent Service --- Shows the process_id, when they were last started, and their current status --- Shows whether you are running on a failover cluster instance - - --- Get SQL Server Agent jobs and Category information (Query 8) (SQL Server Agent Jobs) -SELECT sj.name AS [JobName], sj.[description] AS [JobDescription], SUSER_SNAME(sj.owner_sid) AS [JobOwner], -sj.date_created, sj.[enabled], sj.notify_email_operator_id, sj.notify_level_email, sc.name AS [CategoryName], -js.next_run_date, js.next_run_time -FROM msdb.dbo.sysjobs AS sj WITH (NOLOCK) -INNER JOIN msdb.dbo.syscategories AS sc WITH (NOLOCK) -ON sj.category_id = sc.category_id -LEFT OUTER JOIN msdb.dbo.sysjobschedules AS js WITH (NOLOCK) -ON sj.job_id = js.job_id -ORDER BY sj.name OPTION (RECOMPILE); - --- Gives you some basic information about your SQL Server Agent jobs, who owns them and how they are configured --- Look for Agent jobs that are not owned by sa --- Look for jobs that have a notify_email_operator_id set to 0 (meaning no operator) --- Look for jobs that have a notify_level_email set to 0 (meaning no e-mail is ever sent) --- --- MSDN sysjobs documentation --- http://msdn.microsoft.com/en-us/library/ms189817.aspx - - --- Get SQL Server Agent Alert Information (Query 9) (SQL Server Agent Alerts) -SELECT name, event_source, message_id, severity, [enabled], has_notification, - delay_between_responses, occurrence_count, last_occurrence_date, last_occurrence_time -FROM msdb.dbo.sysalerts WITH (NOLOCK) -ORDER BY name OPTION (RECOMPILE); - --- Gives you some basic information about your SQL Server Agent Alerts (which are different from SQL Server Agent jobs) --- Read more about Agent Alerts here: http://www.sqlskills.com/blogs/glenn/creating-sql-server-agent-alerts-for-critical-errors/ - - - --- Windows information (Query 10) (Windows Info) -SELECT windows_release, windows_service_pack_level, - windows_sku, os_language_version -FROM sys.dm_os_windows_info WITH (NOLOCK) OPTION (RECOMPILE); - --- Gives you major OS version, Service Pack, Edition, and language info for the operating system --- 6.3 is either Windows 8.1, Windows 10 or Windows Server 2012 R2 --- 6.2 is either Windows 8 or Windows Server 2012 --- 6.1 is either Windows 7 or Windows Server 2008 R2 --- 6.0 is either Windows Vista or Windows Server 2008 - --- Windows SKU codes --- 4 is Enterprise Edition --- 7 is Standard Server Edition --- 8 is Datacenter Server Edition --- 10 is Enterprise Server Edition --- 48 is Professional Edition - --- 1033 for os_language_version is US-English - --- SQL Server 2014 requires Windows Server 2008 SP2 or newer - --- Hardware and Software Requirements for Installing SQL Server 2014 --- http://msdn.microsoft.com/en-us/library/ms143506.aspx - --- Using SQL Server in Windows 8, Windows 8.1, Windows Server 2012 and Windows Server 2012 R2 environments --- http://support.microsoft.com/kb/2681562 - - - --- SQL Server NUMA Node information (Query 11) (SQL Server NUMA Info) -SELECT node_id, node_state_desc, memory_node_id, processor_group, online_scheduler_count, - active_worker_count, avg_load_balance, resource_monitor_state -FROM sys.dm_os_nodes WITH (NOLOCK) -WHERE node_state_desc <> N'ONLINE DAC' OPTION (RECOMPILE); - --- Gives you some useful information about the composition and relative load on your NUMA nodes --- You want to see an equal number of schedulers on each NUMA node --- Watch out if SQL Server 2014 Standard Edition has been installed on a machine with more than 16 physical cores - --- Balancing Your Available SQL Server Core Licenses Evenly Across NUMA Nodes --- http://www.sqlskills.com/blogs/glenn/balancing-your-available-sql-server-core-licenses-evenly-across-numa-nodes/ - - - --- Good basic information about OS memory amounts and state (Query 12) (System Memory) -SELECT total_physical_memory_kb/1024 AS [Physical Memory (MB)], - available_physical_memory_kb/1024 AS [Available Memory (MB)], - total_page_file_kb/1024 AS [Total Page File (MB)], - available_page_file_kb/1024 AS [Available Page File (MB)], - system_cache_kb/1024 AS [System Cache (MB)], - system_memory_state_desc AS [System Memory State] -FROM sys.dm_os_sys_memory WITH (NOLOCK) OPTION (RECOMPILE); - --- You want to see "Available physical memory is high" for System Memory State --- This indicates that you are not under external memory pressure - - --- You can skip the next three queries if you know you don't --- have a clustered instance - - --- Shows you where the SQL Server failover cluster diagnostic log is located and how it is configured (Query 13) (SQL Server Error Log) -SELECT is_enabled, [path], max_size, max_files -FROM sys.dm_os_server_diagnostics_log_configurations WITH (NOLOCK) OPTION (RECOMPILE); - --- Knowing this information is important for troubleshooting purposes --- Also shows you the location of other error and diagnostic log files - - --- Get information about your cluster nodes and their status (Query 14) (Cluster Node Properties) --- (if your database server is in a failover cluster) -SELECT NodeName, status_description, is_current_owner -FROM sys.dm_os_cluster_nodes WITH (NOLOCK) OPTION (RECOMPILE); - --- Knowing which node owns the cluster resources is critical --- Especially when you are installing Windows or SQL Server updates --- You will see no results if your instance is not clustered - - --- Get information about any AlwaysOn AG cluster this instance is a part of (Query 15) (AlwaysOn AG Cluster) -SELECT cluster_name, quorum_type_desc, quorum_state_desc -FROM sys.dm_hadr_cluster WITH (NOLOCK) OPTION (RECOMPILE); - --- You will see no results if your instance is not using AlwaysOn AGs - --- Recommended hotfixes and updates for Windows Server 2012 R2-based failover clusters --- http://support.microsoft.com/kb/2920151 - - --- Hardware information from SQL Server 2014 (Query 16) (Hardware Info) -SELECT cpu_count AS [Logical CPU Count], scheduler_count, hyperthread_ratio AS [Hyperthread Ratio], -cpu_count/hyperthread_ratio AS [Physical CPU Count], -physical_memory_kb/1024 AS [Physical Memory (MB)], committed_kb/1024 AS [Committed Memory (MB)], -committed_target_kb/1024 AS [Committed Target Memory (MB)], -max_workers_count AS [Max Workers Count], affinity_type_desc AS [Affinity Type], -sqlserver_start_time AS [SQL Server Start Time], virtual_machine_type_desc AS [Virtual Machine Type] -FROM sys.dm_os_sys_info WITH (NOLOCK) OPTION (RECOMPILE); - --- Gives you some good basic hardware information about your database server --- Cannot distinguish between HT and multi-core --- Note: virtual_machine_type_desc of HYPERVISOR does not automatically mean you are running SQL Server inside of a VM --- It merely indicates that you have a hypervisor running on your host - - --- Get System Manufacturer and model number from SQL Server Error log (Query 17) (System Manufacturer) -EXEC sys.xp_readerrorlog 0, 1, N'Manufacturer'; - --- This can help you determine the capabilities and capacities of your database server --- Can also be used to confirm if you are running in a VM --- This query might take a few seconds if you have not recycled your error log recently --- This query will return no results if your error log has been recycled since the instance was started - - --- Get processor description from Windows Registry (Query 18) (Processor Description) -EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\CentralProcessor\0', N'ProcessorNameString'; - --- Gives you the model number and rated clock speed of your processor(s) --- Your processors may be running at less than the rated clock speed due --- to the Windows Power Plan or hardware power management - --- You can use CPU-Z to get your actual CPU core speed and a lot of other useful information --- http://www.cpuid.com/softwares/cpu-z.html - --- You can learn more about processor selection for SQL Server by following this link --- http://www.sqlskills.com/blogs/glenn/processor-selection-for-sql-server/ - - - --- See if buffer pool extensions (BPE) is enabled (Query 19) (BPE Configuration) -SELECT [path], state_description, current_size_in_kb, -CAST(current_size_in_kb/1048576.0 AS DECIMAL(10,2)) AS [Size (GB)] -FROM sys.dm_os_buffer_pool_extension_configuration WITH (NOLOCK) OPTION (RECOMPILE); - --- BPE is available in both Standard Edition and Enterprise Edition --- It is a more interesting feature for Standard Edition - --- Buffer Pool Extension to SSDs in SQL Server 2014 --- http://blogs.technet.com/b/dataplatforminsider/archive/2013/07/25/buffer-pool-extension-to-ssds-in-sql-server-2014.aspx - - - --- Look at buffer descriptors to see BPE usage by database (Query 20) (BPE Usage) -SELECT DB_NAME(database_id) AS [Database Name], COUNT(page_id) AS [Page Count], -CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], -AVG(read_microsec) AS [Avg Read Time (microseconds)] -FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) -WHERE database_id <> 32767 -AND is_in_bpool_extension = 1 -GROUP BY DB_NAME(database_id) -ORDER BY [Buffer size(MB)] DESC OPTION (RECOMPILE); - --- You will see no results if BPE is not enabled or if there is no BPE usage - - --- Get information on location, time and size of any memory dumps from SQL Server (Query 21) (Memory Dump Info) -SELECT [filename], creation_time, size_in_bytes/1048576.0 AS [Size (MB)] -FROM sys.dm_server_memory_dumps WITH (NOLOCK) -ORDER BY creation_time DESC OPTION (RECOMPILE); - --- This will not return any rows if you have --- not had any memory dumps (which is a good thing) - - --- File names and paths for all user and system databases on instance (Query 22) (Database Filenames and Paths) -SELECT DB_NAME([database_id]) AS [Database Name], - [file_id], name, physical_name, type_desc, state_desc, - is_percent_growth, growth, - CONVERT(bigint, growth/128.0) AS [Growth in MB], - CONVERT(bigint, size/128.0) AS [Total Size in MB] -FROM sys.master_files WITH (NOLOCK) -ORDER BY DB_NAME([database_id]) OPTION (RECOMPILE); - --- Things to look at: --- Are data files and log files on different drives? --- Is everything on the C: drive? --- Is TempDB on dedicated drives? --- Is there only one TempDB data file? --- Are all of the TempDB data files the same size? --- Are there multiple data files for user databases? --- Is percent growth enabled for any files (which is bad)? - - --- Volume info for all LUNS that have database files on the current instance (Query 23) (Volume Info) -SELECT DISTINCT vs.volume_mount_point, vs.file_system_type, -vs.logical_volume_name, CONVERT(DECIMAL(18,2),vs.total_bytes/1073741824.0) AS [Total Size (GB)], -CONVERT(DECIMAL(18,2), vs.available_bytes/1073741824.0) AS [Available Size (GB)], -CONVERT(DECIMAL(18,2), vs.available_bytes * 1. / vs.total_bytes * 100.) AS [Space Free %] -FROM sys.master_files AS f WITH (NOLOCK) -CROSS APPLY sys.dm_os_volume_stats(f.database_id, f.[file_id]) AS vs -ORDER BY vs.volume_mount_point OPTION (RECOMPILE); - --- Shows you the total and free space on the LUNs where you have database files --- Being low on free space can negatively affect performance - - - --- Drive level latency information (Query 24) (Drive Level Latency) --- Based on code from Jimmy May -SELECT tab.[Drive], tab.volume_mount_point AS [Volume Mount Point], - CASE - WHEN num_of_reads = 0 THEN 0 - ELSE (io_stall_read_ms/num_of_reads) - END AS [Read Latency], - CASE - WHEN num_of_writes = 0 THEN 0 - ELSE (io_stall_write_ms/num_of_writes) - END AS [Write Latency], - CASE - WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 - ELSE (io_stall/(num_of_reads + num_of_writes)) - END AS [Overall Latency], - CASE - WHEN num_of_reads = 0 THEN 0 - ELSE (num_of_bytes_read/num_of_reads) - END AS [Avg Bytes/Read], - CASE - WHEN num_of_writes = 0 THEN 0 - ELSE (num_of_bytes_written/num_of_writes) - END AS [Avg Bytes/Write], - CASE - WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 - ELSE ((num_of_bytes_read + num_of_bytes_written)/(num_of_reads + num_of_writes)) - END AS [Avg Bytes/Transfer] -FROM (SELECT LEFT(UPPER(mf.physical_name), 2) AS Drive, SUM(num_of_reads) AS num_of_reads, - SUM(io_stall_read_ms) AS io_stall_read_ms, SUM(num_of_writes) AS num_of_writes, - SUM(io_stall_write_ms) AS io_stall_write_ms, SUM(num_of_bytes_read) AS num_of_bytes_read, - SUM(num_of_bytes_written) AS num_of_bytes_written, SUM(io_stall) AS io_stall, vs.volume_mount_point - FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS vfs - INNER JOIN sys.master_files AS mf WITH (NOLOCK) - ON vfs.database_id = mf.database_id AND vfs.file_id = mf.file_id - CROSS APPLY sys.dm_os_volume_stats(mf.database_id, mf.[file_id]) AS vs - GROUP BY LEFT(UPPER(mf.physical_name), 2), vs.volume_mount_point) AS tab -ORDER BY [Overall Latency] OPTION (RECOMPILE); - --- Shows you the drive-level latency for reads and writes, in milliseconds --- Latency above 20-25ms is usually a problem - - --- Calculates average stalls per read, per write, and per total input/output for each database file (Query 25) (IO Stalls by File) -SELECT DB_NAME(fs.database_id) AS [Database Name], CAST(fs.io_stall_read_ms/(1.0 + fs.num_of_reads) AS NUMERIC(10,1)) AS [avg_read_stall_ms], -CAST(fs.io_stall_write_ms/(1.0 + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_write_stall_ms], -CAST((fs.io_stall_read_ms + fs.io_stall_write_ms)/(1.0 + fs.num_of_reads + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_io_stall_ms], -CONVERT(DECIMAL(18,2), mf.size/128.0) AS [File Size (MB)], mf.physical_name, mf.type_desc, fs.io_stall_read_ms, fs.num_of_reads, -fs.io_stall_write_ms, fs.num_of_writes, fs.io_stall_read_ms + fs.io_stall_write_ms AS [io_stalls], fs.num_of_reads + fs.num_of_writes AS [total_io], -io_stall_queued_read_ms AS [Resource Governor Total Read IO Latency (ms)], io_stall_queued_write_ms AS [Resource Governor Total Write IO Latency (ms)] -FROM sys.dm_io_virtual_file_stats(null,null) AS fs -INNER JOIN sys.master_files AS mf WITH (NOLOCK) -ON fs.database_id = mf.database_id -AND fs.[file_id] = mf.[file_id] -ORDER BY avg_io_stall_ms DESC OPTION (RECOMPILE); - --- Helps determine which database files on the entire instance have the most I/O bottlenecks --- This can help you decide whether certain LUNs are overloaded and whether you might --- want to move some files to a different location or perhaps improve your I/O performance - - --- Look for I/O requests taking longer than 15 seconds in the five most recent SQL Server Error Logs (Query 26) (IO Warnings) -CREATE TABLE #IOWarningResults(LogDate datetime, ProcessInfo sysname, LogText nvarchar(1000)); - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 0, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 1, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 2, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 3, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 4, 1, N'taking longer than 15 seconds'; - -SELECT LogDate, ProcessInfo, LogText -FROM #IOWarningResults -ORDER BY LogDate DESC; - -DROP TABLE #IOWarningResults; - --- Finding 15 second I/O warnings in the SQL Server Error Log is useful evidence of --- poor I/O performance (which might have many different causes) - --- Diagnostics in SQL Server help detect stalled and stuck I/O operations --- https://support.microsoft.com/en-us/kb/897284 - - - --- Recovery model, log reuse wait description, log file size, log usage size (Query 27) (Database Properties) --- and compatibility level for all databases on instance -SELECT db.[name] AS [Database Name], db.recovery_model_desc AS [Recovery Model], db.state_desc, db.containment_desc, -db.log_reuse_wait_desc AS [Log Reuse Wait Description], -CONVERT(DECIMAL(18,2), ls.cntr_value/1024.0) AS [Log Size (MB)], CONVERT(DECIMAL(18,2), lu.cntr_value/1024.0) AS [Log Used (MB)], -CAST(CAST(lu.cntr_value AS FLOAT) / CAST(ls.cntr_value AS FLOAT)AS DECIMAL(18,2)) * 100 AS [Log Used %], -db.[compatibility_level] AS [DB Compatibility Level], db.page_verify_option_desc AS [Page Verify Option], -db.is_auto_create_stats_on, db.is_auto_update_stats_on, db.is_auto_update_stats_async_on, db.is_parameterization_forced, -db.snapshot_isolation_state_desc, db.is_read_committed_snapshot_on, db.is_auto_close_on, db.is_auto_shrink_on, -db.target_recovery_time_in_seconds, db.is_cdc_enabled, db.is_published, db.is_distributor, db.is_encrypted, -db.group_database_id, db.replica_id,db.is_memory_optimized_elevate_to_snapshot_on, -db.delayed_durability_desc, db.is_auto_create_stats_incremental_on -FROM sys.databases AS db WITH (NOLOCK) -INNER JOIN sys.dm_os_performance_counters AS lu WITH (NOLOCK) -ON db.name = lu.instance_name -INNER JOIN sys.dm_os_performance_counters AS ls WITH (NOLOCK) -ON db.name = ls.instance_name -WHERE lu.counter_name LIKE N'Log File(s) Used Size (KB)%' -AND ls.counter_name LIKE N'Log File(s) Size (KB)%' -AND ls.cntr_value > 0 OPTION (RECOMPILE); - --- Things to look at: --- How many databases are on the instance? --- What recovery models are they using? --- What is the log reuse wait description? --- How full are the transaction logs? --- What compatibility level are the databases on? --- What is the Page Verify Option? (should be CHECKSUM) --- Is Auto Update Statistics Asynchronously enabled? --- Make sure auto_shrink and auto_close are not enabled! - - - --- Missing Indexes for all databases by Index Advantage (Query 28) (Missing Indexes All Databases) -SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], -migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], -mid.equality_columns, mid.inequality_columns, mid.included_columns, -migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact -FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) -INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) -ON migs.group_handle = mig.index_group_handle -INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) -ON mig.index_handle = mid.index_handle -ORDER BY index_advantage DESC OPTION (RECOMPILE); - --- Getting missing index information for all of the databases on the instance is very useful --- Look at last user seek time, number of user seeks to help determine source and importance --- Also look at avg_user_impact and avg_total_user_cost to help determine importance --- SQL Server is overly eager to add included columns, so beware --- Do not just blindly add indexes that show up from this query!!! - - - --- Get VLF Counts for all databases on the instance (Query 29) (VLF Counts) --- (adapted from Michelle Ufford) -CREATE TABLE #VLFInfo (RecoveryUnitID int, FileID int, - FileSize bigint, StartOffset bigint, - FSeqNo bigint, [Status] bigint, - Parity bigint, CreateLSN numeric(38)); - -CREATE TABLE #VLFCountResults(DatabaseName sysname, VLFCount int); - -EXEC sp_MSforeachdb N'Use [?]; - - INSERT INTO #VLFInfo - EXEC sp_executesql N''DBCC LOGINFO([?])''; - - INSERT INTO #VLFCountResults - SELECT DB_NAME(), COUNT(*) - FROM #VLFInfo; - - TRUNCATE TABLE #VLFInfo;' - -SELECT DatabaseName, VLFCount -FROM #VLFCountResults -ORDER BY VLFCount DESC; - -DROP TABLE #VLFInfo; -DROP TABLE #VLFCountResults; - --- High VLF counts can affect write performance --- and they can make full database restores and crash recovery take much longer --- Try to keep your VLF counts under 200 in most cases (depending on log file size) - --- Important change to VLF creation algorithm in SQL Server 2014 --- http://www.sqlskills.com/blogs/paul/important-change-vlf-creation-algorithm-sql-server-2014/ - - - --- Get CPU utilization by database (Query 30) (CPU Usage by Database) -WITH DB_CPU_Stats -AS -(SELECT pa.DatabaseID, DB_Name(pa.DatabaseID) AS [Database Name], SUM(qs.total_worker_time/1000) AS [CPU_Time_Ms] - FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) - CROSS APPLY (SELECT CONVERT(int, value) AS [DatabaseID] - FROM sys.dm_exec_plan_attributes(qs.plan_handle) - WHERE attribute = N'dbid') AS pa - GROUP BY DatabaseID) -SELECT ROW_NUMBER() OVER(ORDER BY [CPU_Time_Ms] DESC) AS [CPU Rank], - [Database Name], [CPU_Time_Ms] AS [CPU Time (ms)], - CAST([CPU_Time_Ms] * 1.0 / SUM([CPU_Time_Ms]) OVER() * 100.0 AS DECIMAL(5, 2)) AS [CPU Percent] -FROM DB_CPU_Stats -WHERE DatabaseID <> 32767 -- ResourceDB -ORDER BY [CPU Rank] OPTION (RECOMPILE); - --- Helps determine which database is using the most CPU resources on the instance - - --- Get I/O utilization by database (Query 31) (IO Usage By Database) -WITH Aggregate_IO_Statistics -AS -(SELECT DB_NAME(database_id) AS [Database Name], -CAST(SUM(num_of_bytes_read + num_of_bytes_written)/1048576 AS DECIMAL(12, 2)) AS io_in_mb -FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS [DM_IO_STATS] -GROUP BY database_id) -SELECT ROW_NUMBER() OVER(ORDER BY io_in_mb DESC) AS [I/O Rank], [Database Name], io_in_mb AS [Total I/O (MB)], - CAST(io_in_mb/ SUM(io_in_mb) OVER() * 100.0 AS DECIMAL(5,2)) AS [I/O Percent] -FROM Aggregate_IO_Statistics -ORDER BY [I/O Rank] OPTION (RECOMPILE); - --- Helps determine which database is using the most I/O resources on the instance - - --- Get total buffer usage by database for current instance (Query 32) (Total Buffer Usage by Database) --- This make take some time to run on a busy instance -WITH AggregateBufferPoolUsage -AS -(SELECT DB_NAME(database_id) AS [Database Name], -CAST(COUNT(*) * 8/1024.0 AS DECIMAL (10,2)) AS [CachedSize] -FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) -WHERE database_id <> 32767 -- ResourceDB -GROUP BY DB_NAME(database_id)) -SELECT ROW_NUMBER() OVER(ORDER BY CachedSize DESC) AS [Buffer Pool Rank], [Database Name], CachedSize AS [Cached Size (MB)], - CAST(CachedSize / SUM(CachedSize) OVER() * 100.0 AS DECIMAL(5,2)) AS [Buffer Pool Percent] -FROM AggregateBufferPoolUsage -ORDER BY [Buffer Pool Rank] OPTION (RECOMPILE); - --- Tells you how much memory (in the buffer pool) --- is being used by each database on the instance - - --- Clear Wait Stats with this command --- DBCC SQLPERF('sys.dm_os_wait_stats', CLEAR); - --- Isolate top waits for server instance since last restart or wait statistics clear (Query 33) (Top Waits) -WITH [Waits] -AS (SELECT wait_type, wait_time_ms/ 1000.0 AS [WaitS], - (wait_time_ms - signal_wait_time_ms) / 1000.0 AS [ResourceS], - signal_wait_time_ms / 1000.0 AS [SignalS], - waiting_tasks_count AS [WaitCount], - 100.0 * wait_time_ms / SUM (wait_time_ms) OVER() AS [Percentage], - ROW_NUMBER() OVER(ORDER BY wait_time_ms DESC) AS [RowNum] - FROM sys.dm_os_wait_stats WITH (NOLOCK) - WHERE [wait_type] NOT IN ( - N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', - N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', - N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', - N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', - N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', - N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', - N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', - N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', - N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', - N'PWAIT_ALL_COMPONENTS_INITIALIZED', - N'PREEMPTIVE_OS_AUTHENTICATIONOPS', N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', - N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'QDS_SHUTDOWN_QUEUE', N'REQUEST_FOR_DEADLOCK_SEARCH', - N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', - N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', - N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', - N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', - N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', - N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', - N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', - N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') - AND waiting_tasks_count > 0) -SELECT - MAX (W1.wait_type) AS [WaitType], - CAST (MAX (W1.WaitS) AS DECIMAL (16,2)) AS [Wait_Sec], - CAST (MAX (W1.ResourceS) AS DECIMAL (16,2)) AS [Resource_Sec], - CAST (MAX (W1.SignalS) AS DECIMAL (16,2)) AS [Signal_Sec], - MAX (W1.WaitCount) AS [Wait Count], - CAST (MAX (W1.Percentage) AS DECIMAL (5,2)) AS [Wait Percentage], - CAST ((MAX (W1.WaitS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgWait_Sec], - CAST ((MAX (W1.ResourceS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgRes_Sec], - CAST ((MAX (W1.SignalS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgSig_Sec] -FROM Waits AS W1 -INNER JOIN Waits AS W2 -ON W2.RowNum <= W1.RowNum -GROUP BY W1.RowNum -HAVING SUM (W2.Percentage) - MAX (W1.Percentage) < 99 -- percentage threshold -OPTION (RECOMPILE); - --- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure - --- SQL Server Wait Types Library (Paul Randal) --- https://www.sqlskills.com/help/waits/ - --- The SQL Server Wait Type Repository --- http://blogs.msdn.com/b/psssql/archive/2009/11/03/the-sql-server-wait-type-repository.aspx - --- Wait statistics, or please tell me where it hurts --- http://www.sqlskills.com/blogs/paul/wait-statistics-or-please-tell-me-where-it-hurts/ - --- SQL Server 2005 Performance Tuning using the Waits and Queues --- http://technet.microsoft.com/en-us/library/cc966413.aspx - --- sys.dm_os_wait_stats (Transact-SQL) --- http://msdn.microsoft.com/en-us/library/ms179984(v=sql.120).aspx - - - --- Get a count of SQL connections by IP address (Query 34) (Connection Counts by IP Address) -SELECT ec.client_net_address, es.[program_name], es.[host_name], es.login_name, -COUNT(ec.session_id) AS [connection count] -FROM sys.dm_exec_sessions AS es WITH (NOLOCK) -INNER JOIN sys.dm_exec_connections AS ec WITH (NOLOCK) -ON es.session_id = ec.session_id -GROUP BY ec.client_net_address, es.[program_name], es.[host_name], es.login_name -ORDER BY ec.client_net_address, es.[program_name] OPTION (RECOMPILE); - --- This helps you figure where your database load is coming from --- and verifies connectivity from other machines - - --- Get Average Task Counts (run multiple times) (Query 35) (Avg Task Counts) -SELECT AVG(current_tasks_count) AS [Avg Task Count], -AVG(work_queue_count) AS [Avg Work Queue Count], -AVG(runnable_tasks_count) AS [Avg Runnable Task Count], -AVG(pending_disk_io_count) AS [Avg Pending DiskIO Count] -FROM sys.dm_os_schedulers WITH (NOLOCK) -WHERE scheduler_id < 255 OPTION (RECOMPILE); - --- Sustained values above 10 suggest further investigation in that area --- High Avg Task Counts are often caused by blocking/deadlocking or other resource contention - --- Sustained values above 1 suggest further investigation in that area --- High Avg Runnable Task Counts are a good sign of CPU pressure --- High Avg Pending DiskIO Counts are a sign of disk pressure - - --- Detect blocking (run multiple times) (Query 36) (Detect Blocking) -SELECT t1.resource_type AS [lock type], DB_NAME(resource_database_id) AS [database], -t1.resource_associated_entity_id AS [blk object],t1.request_mode AS [lock req], --- lock requested -t1.request_session_id AS [waiter sid], t2.wait_duration_ms AS [wait time], -- spid of waiter -(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK) -- get sql for waiter -CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) -WHERE r.session_id = t1.request_session_id) AS [waiter_batch], -(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, - (CASE WHEN r.statement_end_offset = -1 - THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 - ELSE r.statement_end_offset END - r.statement_start_offset)/2) -FROM sys.dm_exec_requests AS r WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt -WHERE r.session_id = t1.request_session_id) AS [waiter_stmt], -- statement blocked -t2.blocking_session_id AS [blocker sid], -- spid of blocker -(SELECT [text] FROM sys.sysprocesses AS p -- get sql for blocker -CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) -WHERE p.spid = t2.blocking_session_id) AS [blocker_batch] -FROM sys.dm_tran_locks AS t1 WITH (NOLOCK) -INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK) -ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE); - --- Helps troubleshoot blocking and deadlocking issues --- The results will change from second to second on a busy system --- You should run this query multiple times when you see signs of blocking - - - --- Get CPU Utilization History for last 256 minutes (in one minute intervals) (Query 37) (CPU Utilization History) --- This version works with SQL Server 2014 -DECLARE @ts_now bigint = (SELECT cpu_ticks/(cpu_ticks/ms_ticks) FROM sys.dm_os_sys_info WITH (NOLOCK)); - -SELECT TOP(256) SQLProcessUtilization AS [SQL Server Process CPU Utilization], - SystemIdle AS [System Idle Process], - 100 - SystemIdle - SQLProcessUtilization AS [Other Process CPU Utilization], - DATEADD(ms, -1 * (@ts_now - [timestamp]), GETDATE()) AS [Event Time] -FROM (SELECT record.value('(./Record/@id)[1]', 'int') AS record_id, - record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') - AS [SystemIdle], - record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', 'int') - AS [SQLProcessUtilization], [timestamp] - FROM (SELECT [timestamp], CONVERT(xml, record) AS [record] - FROM sys.dm_os_ring_buffers WITH (NOLOCK) - WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' - AND record LIKE N'%%') AS x) AS y -ORDER BY record_id DESC OPTION (RECOMPILE); - --- Look at the trend over the entire period --- Also look at high sustained Other Process CPU Utilization values - - - --- Get top total worker time queries for entire instance (Query 38) (Top Worker Time Queries) -SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], LEFT(t.[text], 50) AS [Short Query Text], -qs.total_worker_time AS [Total Worker Time], qs.min_worker_time AS [Min Worker Time], -qs.total_worker_time/qs.execution_count AS [Avg Worker Time], -qs.max_worker_time AS [Max Worker Time], -qs.min_elapsed_time AS [Min Elapsed Time], -qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], -qs.max_elapsed_time AS [Max Elapsed Time], -qs.min_logical_reads AS [Min Logical Reads], -qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], -qs.max_logical_reads AS [Max Logical Reads], -qs.execution_count AS [Execution Count], qs.creation_time AS [Creation Time] -,t.[text] AS [Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t -CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp -ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); - - --- Helps you find the most expensive queries from a CPU perspective across the entire instance --- Can also help track down parameter sniffing issues - - - --- Page Life Expectancy (PLE) value for each NUMA node in current instance (Query 39) (PLE by NUMA Node) -SELECT @@SERVERNAME AS [Server Name], [object_name], instance_name, cntr_value AS [Page Life Expectancy] -FROM sys.dm_os_performance_counters WITH (NOLOCK) -WHERE [object_name] LIKE N'%Buffer Node%' -- Handles named instances -AND counter_name = N'Page life expectancy' OPTION (RECOMPILE); - --- PLE is a good measurement of memory pressure --- Higher PLE is better. Watch the trend over time, not the absolute value --- This will only return one row for non-NUMA systems - --- Page Life Expectancy isnt what you think --- http://www.sqlskills.com/blogs/paul/page-life-expectancy-isnt-what-you-think/ - - --- Memory Grants Pending value for current instance (Query 40) (Memory Grants Pending) -SELECT @@SERVERNAME AS [Server Name], [object_name], cntr_value AS [Memory Grants Pending] -FROM sys.dm_os_performance_counters WITH (NOLOCK) -WHERE [object_name] LIKE N'%Memory Manager%' -- Handles named instances -AND counter_name = N'Memory Grants Pending' OPTION (RECOMPILE); - --- Memory Grants Pending above zero for a sustained period is a very strong indicator of memory pressure - - --- Memory Clerk Usage for instance (Query 41) (Memory Clerk Usage) --- Look for high value for CACHESTORE_SQLCP (Ad-hoc query plans) -SELECT TOP(10) mc.[type] AS [Memory Clerk Type], - CAST((SUM(mc.pages_kb)/1024.0) AS DECIMAL (15,2)) AS [Memory Usage (MB)] -FROM sys.dm_os_memory_clerks AS mc WITH (NOLOCK) -GROUP BY mc.[type] -ORDER BY SUM(mc.pages_kb) DESC OPTION (RECOMPILE); - --- MEMORYCLERK_SQLBUFFERPOOL was new for SQL Server 2012. It should be your highest consumer of memory - --- CACHESTORE_SQLCP SQL Plans --- These are cached SQL statements or batches that aren't in stored procedures, functions and triggers --- Watch out for high values for CACHESTORE_SQLCP - --- CACHESTORE_OBJCP Object Plans --- These are compiled plans for stored procedures, functions and triggers - - - --- Find single-use, ad-hoc and prepared queries that are bloating the plan cache (Query 42) (Ad hoc Queries) -SELECT TOP(50) [text] AS [QueryText], cp.cacheobjtype, cp.objtype, cp.size_in_bytes/1024 AS [Plan Size in KB] -FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) -WHERE cp.cacheobjtype = N'Compiled Plan' -AND cp.objtype IN (N'Adhoc', N'Prepared') -AND cp.usecounts = 1 -ORDER BY cp.size_in_bytes DESC OPTION (RECOMPILE); - --- Gives you the text, type and size of single-use ad-hoc and prepared queries that waste space in the plan cache --- Enabling 'optimize for ad hoc workloads' for the instance can help (SQL Server 2008 and above only) --- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this --- Enabling forced parameterization for the database can help, but test first! - --- Plan cache, adhoc workloads and clearing the single-use plan cache bloat --- http://www.sqlskills.com/blogs/kimberly/plan-cache-adhoc-workloads-and-clearing-the-single-use-plan-cache-bloat/ - - --- Get top total logical reads queries for entire instance (Query 43) (Top Logical Reads Queries) -SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], LEFT(t.[text], 50) AS [Short Query Text], -qs.total_logical_reads AS [Total Logical Reads], -qs.min_logical_reads AS [Min Logical Reads], -qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], -qs.max_logical_reads AS [Max Logical Reads], -qs.min_worker_time AS [Min Worker Time], -qs.total_worker_time/qs.execution_count AS [Avg Worker Time], -qs.max_worker_time AS [Max Worker Time], -qs.min_elapsed_time AS [Min Elapsed Time], -qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], -qs.max_elapsed_time AS [Max Elapsed Time], -qs.execution_count AS [Execution Count], qs.creation_time AS [Creation Time] -,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t -CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp -ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); - - --- Helps you find the most expensive queries from a memory perspective across the entire instance --- Can also help track down parameter sniffing issues - - - - - - - - - --- Database specific queries ***************************************************************** - --- **** Switch to a user database that you are interested in ***** -USE YourDatabaseName; -- make sure to change to an actual database on your instance, not the master system database -GO - --- Individual File Sizes and space available for current database (Query 44) (File Sizes and Space) -SELECT f.name AS [File Name] , f.physical_name AS [Physical Name], -CAST((f.size/128.0) AS DECIMAL(15,2)) AS [Total Size in MB], -CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) -AS [Available Space In MB], f.[file_id], fg.name AS [Filegroup Name], -f.is_percent_growth, f.growth, -fg.is_default, fg.is_read_only -FROM sys.database_files AS f WITH (NOLOCK) -LEFT OUTER JOIN sys.filegroups AS fg WITH (NOLOCK) -ON f.data_space_id = fg.data_space_id -ORDER BY f.[file_id] OPTION (RECOMPILE); - --- Look at how large and how full the files are and where they are located --- Make sure the transaction log is not full!! - - --- Log space usage for current database (Query 45) (Log Space Usage) -SELECT DB_NAME(lsu.database_id) AS [Database Name], db.recovery_model_desc AS [Recovery Model], - CAST(total_log_size_in_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Total Log Space (MB)], - CAST(used_log_space_in_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Used Log Space (MB)], - CAST(used_log_space_in_percent AS DECIMAL(10, 2)) AS [Used Log Space %], - CAST(log_space_in_bytes_since_last_backup/1048576.0 AS DECIMAL(10, 2)) AS [Used Log Space Since Last Backup (MB)], - db.log_reuse_wait_desc -FROM sys.dm_db_log_space_usage AS lsu WITH (NOLOCK) -INNER JOIN sys.databases AS db WITH (NOLOCK) -ON lsu.database_id = db.database_id -OPTION (RECOMPILE); - --- Look at log file size and usage, along with the log reuse wait description for the current database - - --- I/O Statistics by file for the current database (Query 46) (IO Stats By File) -SELECT DB_NAME(DB_ID()) AS [Database Name], df.name AS [Logical Name], vfs.[file_id], df.type_desc, -df.physical_name AS [Physical Name], CAST(vfs.size_on_disk_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Size on Disk (MB)], -vfs.num_of_reads, vfs.num_of_writes, vfs.io_stall_read_ms, vfs.io_stall_write_ms, -CAST(100. * vfs.io_stall_read_ms/(vfs.io_stall_read_ms + vfs.io_stall_write_ms) AS DECIMAL(10,1)) AS [IO Stall Reads Pct], -CAST(100. * vfs.io_stall_write_ms/(vfs.io_stall_write_ms + vfs.io_stall_read_ms) AS DECIMAL(10,1)) AS [IO Stall Writes Pct], -(vfs.num_of_reads + vfs.num_of_writes) AS [Writes + Reads], -CAST(vfs.num_of_bytes_read/1048576.0 AS DECIMAL(10, 2)) AS [MB Read], -CAST(vfs.num_of_bytes_written/1048576.0 AS DECIMAL(10, 2)) AS [MB Written], -CAST(100. * vfs.num_of_reads/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Reads Pct], -CAST(100. * vfs.num_of_writes/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Write Pct], -CAST(100. * vfs.num_of_bytes_read/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Read Bytes Pct], -CAST(100. * vfs.num_of_bytes_written/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Written Bytes Pct] -FROM sys.dm_io_virtual_file_stats(DB_ID(), NULL) AS vfs -INNER JOIN sys.database_files AS df WITH (NOLOCK) -ON vfs.[file_id]= df.[file_id] OPTION (RECOMPILE); - --- This helps you characterize your workload better from an I/O perspective for this database --- It helps you determine whether you has an OLTP or DW/DSS type of workload - - - --- Get most frequently executed queries for this database (Query 47) (Query Execution Counts) -SELECT TOP(50) LEFT(t.[text], 50) AS [Short Query Text], qs.execution_count AS [Execution Count], -qs.total_logical_reads AS [Total Logical Reads], -qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], -qs.total_worker_time AS [Total Worker Time], -qs.total_worker_time/qs.execution_count AS [Avg Worker Time], -qs.total_elapsed_time AS [Total Elapsed Time], -qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], -qs.creation_time AS [Creation Time] ---,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t -CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp -WHERE t.dbid = DB_ID() -ORDER BY qs.execution_count DESC OPTION (RECOMPILE); - - - --- Top Cached SPs By Execution Count (Query 48) (SP Execution Counts) -SELECT TOP(100) p.name AS [SP Name], qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.total_worker_time AS [TotalWorkerTime], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY qs.execution_count DESC OPTION (RECOMPILE); - --- Tells you which cached stored procedures are called the most often --- This helps you characterize and baseline your workload - - --- Top Cached SPs By Avg Elapsed Time (Query 49) (SP Avg Elapsed Time) -SELECT TOP(25) p.name AS [SP Name], qs.min_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.max_elapsed_time, qs.last_elapsed_time, qs.total_elapsed_time, qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], -qs.total_worker_time AS [TotalWorkerTime], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); - --- This helps you find high average elapsed time cached stored procedures that --- may be easy to optimize with standard query tuning techniques - - - --- Top Cached SPs By Total Worker time. Worker time relates to CPU cost (Query 50) (SP Worker Time) -SELECT TOP(25) p.name AS [SP Name], qs.total_worker_time AS [TotalWorkerTime], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count -AS [avg_elapsed_time], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a CPU perspective --- You should look at this if you see signs of CPU pressure - - --- Top Cached SPs By Total Logical Reads. Logical reads relate to memory pressure (Query 51) (SP Logical Reads) -SELECT TOP(25) p.name AS [SP Name], qs.total_logical_reads AS [TotalLogicalReads], -qs.total_logical_reads/qs.execution_count AS [AvgLogicalReads],qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count -AS [avg_elapsed_time], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a memory perspective --- You should look at this if you see signs of memory pressure - - --- Top Cached SPs By Total Physical Reads. Physical reads relate to disk read I/O pressure (Query 52) (SP Physical Reads) -SELECT TOP(25) p.name AS [SP Name],qs.total_physical_reads AS [TotalPhysicalReads], -qs.total_physical_reads/qs.execution_count AS [AvgPhysicalReads], qs.execution_count, -qs.total_logical_reads,qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count -AS [avg_elapsed_time], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -AND qs.total_physical_reads > 0 -ORDER BY qs.total_physical_reads DESC, qs.total_logical_reads DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a read I/O perspective --- You should look at this if you see signs of I/O pressure or of memory pressure - - - --- Top Cached SPs By Total Logical Writes (Query 53) (SP Logical Writes) --- Logical writes relate to both memory and disk I/O pressure -SELECT TOP(25) p.name AS [SP Name], qs.total_logical_writes AS [TotalLogicalWrites], -qs.total_logical_writes/qs.execution_count AS [AvgLogicalWrites], qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -AND qs.total_logical_writes > 0 -ORDER BY qs.total_logical_writes DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a write I/O perspective --- You should look at this if you see signs of I/O pressure or of memory pressure - - --- Lists the top statements by average input/output usage for the current database (Query 54) (Top IO Statements) -SELECT TOP(50) OBJECT_NAME(qt.objectid, dbid) AS [SP Name], -(qs.total_logical_reads + qs.total_logical_writes) /qs.execution_count AS [Avg IO], qs.execution_count AS [Execution Count], -SUBSTRING(qt.[text],qs.statement_start_offset/2, - (CASE - WHEN qs.statement_end_offset = -1 - THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 - ELSE qs.statement_end_offset - END - qs.statement_start_offset)/2) AS [Query Text] -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt -WHERE qt.[dbid] = DB_ID() -ORDER BY [Avg IO] DESC OPTION (RECOMPILE); - --- Helps you find the most expensive statements for I/O by SP - - - --- Possible Bad NC Indexes (writes > reads) (Query 55) (Bad NC Indexes) -SELECT OBJECT_NAME(s.[object_id]) AS [Table Name], i.name AS [Index Name], i.index_id, -i.is_disabled, i.is_hypothetical, i.has_filter, i.fill_factor, -user_updates AS [Total Writes], user_seeks + user_scans + user_lookups AS [Total Reads], -user_updates - (user_seeks + user_scans + user_lookups) AS [Difference] -FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON s.[object_id] = i.[object_id] -AND i.index_id = s.index_id -WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 -AND s.database_id = DB_ID() -AND user_updates > (user_seeks + user_scans + user_lookups) -AND i.index_id > 1 -ORDER BY [Difference] DESC, [Total Writes] DESC, [Total Reads] ASC OPTION (RECOMPILE); - --- Look for indexes with high numbers of writes and zero or very low numbers of reads --- Consider your complete workload, and how long your instance has been running --- Investigate further before dropping an index! - - --- Missing Indexes for current database by Index Advantage (Query 56) (Missing Indexes) -SELECT DISTINCT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], -migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], -mid.equality_columns, mid.inequality_columns, mid.included_columns, -migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact, -OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows] -FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) -INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) -ON migs.group_handle = mig.index_group_handle -INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) -ON mig.index_handle = mid.index_handle -INNER JOIN sys.partitions AS p WITH (NOLOCK) -ON p.[object_id] = mid.[object_id] -WHERE mid.database_id = DB_ID() -ORDER BY index_advantage DESC OPTION (RECOMPILE); - --- Look at index advantage, last user seek time, number of user seeks to help determine source and importance --- SQL Server is overly eager to add included columns, so beware --- Do not just blindly add indexes that show up from this query!!! - - --- Find missing index warnings for cached plans in the current database (Query 57) (Missing Index Warnings) --- Note: This query could take some time on a busy instance -SELECT TOP(25) OBJECT_NAME(objectid) AS [ObjectName], - query_plan, cp.objtype, cp.usecounts, cp.size_in_bytes -FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) -CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp -WHERE CAST(query_plan AS NVARCHAR(MAX)) LIKE N'%MissingIndex%' -AND dbid = DB_ID() -ORDER BY cp.usecounts DESC OPTION (RECOMPILE); - --- Helps you connect missing indexes to specific stored procedures or queries --- This can help you decide whether to add them or not - - --- Breaks down buffers used by current database by object (table, index) in the buffer cache (Query 58) (Buffer Usage) --- Note: This query could take some time on a busy instance -SELECT OBJECT_NAME(p.[object_id]) AS [Object Name], p.index_id, -CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], -COUNT(*) AS [BufferCount], p.Rows AS [Row Count], -p.data_compression_desc AS [Compression Type] -FROM sys.allocation_units AS a WITH (NOLOCK) -INNER JOIN sys.dm_os_buffer_descriptors AS b WITH (NOLOCK) -ON a.allocation_unit_id = b.allocation_unit_id -INNER JOIN sys.partitions AS p WITH (NOLOCK) -ON a.container_id = p.hobt_id -WHERE b.database_id = CONVERT(int,DB_ID()) -AND p.[object_id] > 100 -GROUP BY p.[object_id], p.index_id, p.data_compression_desc, p.[Rows] -ORDER BY [BufferCount] DESC OPTION (RECOMPILE); - --- Tells you what tables and indexes are using the most memory in the buffer cache --- It can help identify possible candidates for data compression - - --- Get Table names, row counts, and compression status for clustered index or heap (Query 59) (Table Sizes) -SELECT OBJECT_NAME(object_id) AS [ObjectName], -SUM(Rows) AS [RowCount], data_compression_desc AS [CompressionType] -FROM sys.partitions WITH (NOLOCK) -WHERE index_id < 2 --ignore the partitions from the non-clustered index if any -AND OBJECT_NAME(object_id) NOT LIKE N'sys%' -AND OBJECT_NAME(object_id) NOT LIKE N'queue_%' -AND OBJECT_NAME(object_id) NOT LIKE N'filestream_tombstone%' -AND OBJECT_NAME(object_id) NOT LIKE N'fulltext%' -AND OBJECT_NAME(object_id) NOT LIKE N'ifts_comp_fragment%' -AND OBJECT_NAME(object_id) NOT LIKE N'filetable_updates%' -AND OBJECT_NAME(object_id) NOT LIKE N'xml_index_nodes%' -AND OBJECT_NAME(object_id) NOT LIKE N'sqlagent_job%' -AND OBJECT_NAME(object_id) NOT LIKE N'plan_persist%' -GROUP BY object_id, data_compression_desc -ORDER BY SUM(Rows) DESC OPTION (RECOMPILE); - --- Gives you an idea of table sizes, and possible data compression opportunities - - - --- Get some key table properties (Query 60) (Table Properties) -SELECT OBJECT_NAME(t.[object_id]) AS [ObjectName], p.[rows] AS [Table Rows], p.index_id, - p.data_compression_desc AS [Index Data Compression], - t.create_date, t.lock_on_bulk_load, t.is_replicated, t.has_replication_filter, - t.is_tracked_by_cdc, t.lock_escalation_desc, t.is_memory_optimized, t.durability_desc, t.is_filetable -FROM sys.tables AS t WITH (NOLOCK) -INNER JOIN sys.partitions AS p WITH (NOLOCK) -ON t.[object_id] = p.[object_id] -WHERE OBJECT_NAME(t.[object_id]) NOT LIKE N'sys%' -ORDER BY OBJECT_NAME(t.[object_id]), p.index_id OPTION (RECOMPILE); - --- Gives you some good information about your tables --- Is Memory optimized and durability description are Hekaton-related properties that were new in SQL Server 2014 - - - --- When were Statistics last updated on all indexes? (Query 61) (Statistics Update) -SELECT SCHEMA_NAME(o.Schema_ID) + N'.' + o.NAME AS [Object Name], o.type_desc AS [Object Type], - i.name AS [Index Name], STATS_DATE(i.[object_id], i.index_id) AS [Statistics Date], - s.auto_created, s.no_recompute, s.user_created, s.is_incremental, s.is_temporary, - st.row_count, st.used_page_count -FROM sys.objects AS o WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON o.[object_id] = i.[object_id] -INNER JOIN sys.stats AS s WITH (NOLOCK) -ON i.[object_id] = s.[object_id] -AND i.index_id = s.stats_id -INNER JOIN sys.dm_db_partition_stats AS st WITH (NOLOCK) -ON o.[object_id] = st.[object_id] -AND i.[index_id] = st.[index_id] -WHERE o.[type] IN ('U', 'V') -AND st.row_count > 0 -ORDER BY STATS_DATE(i.[object_id], i.index_id) DESC OPTION (RECOMPILE); - --- Helps discover possible problems with out-of-date statistics --- Also gives you an idea which indexes are the most active - - --- Look at most frequently modified indexes and statistics (Query 62) (Volatile Indexes) -SELECT o.name AS [Object Name], o.[object_id], o.type_desc, s.name AS [Statistics Name], - s.stats_id, s.no_recompute, s.auto_created, - sp.modification_counter, sp.rows, sp.rows_sampled, sp.last_updated -FROM sys.objects AS o WITH (NOLOCK) -INNER JOIN sys.stats AS s WITH (NOLOCK) -ON s.object_id = o.object_id -CROSS APPLY sys.dm_db_stats_properties(s.object_id, s.stats_id) AS sp -WHERE o.type_desc NOT IN (N'SYSTEM_TABLE', N'INTERNAL_TABLE') -AND sp.modification_counter > 0 -ORDER BY sp.modification_counter DESC, o.name OPTION (RECOMPILE); - - - --- Get fragmentation info for all indexes above a certain size in the current database (Query 63) (Index Fragmentation) --- Note: This query could take some time on a very large database -SELECT DB_NAME(ps.database_id) AS [Database Name], OBJECT_NAME(ps.OBJECT_ID) AS [Object Name], -i.name AS [Index Name], ps.index_id, ps.index_type_desc, ps.avg_fragmentation_in_percent, -ps.fragment_count, ps.page_count, i.fill_factor, i.has_filter, i.filter_definition -FROM sys.dm_db_index_physical_stats(DB_ID(),NULL, NULL, NULL , N'LIMITED') AS ps -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON ps.[object_id] = i.[object_id] -AND ps.index_id = i.index_id -WHERE ps.database_id = DB_ID() -AND ps.page_count > 2500 -ORDER BY ps.avg_fragmentation_in_percent DESC OPTION (RECOMPILE); - --- Helps determine whether you have framentation in your relational indexes --- and how effective your index maintenance strategy is - - ---- Index Read/Write stats (all tables in current DB) ordered by Reads (Query 64) (Overall Index Usage - Reads) -SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, - s.user_seeks, s.user_scans, s.user_lookups, - s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], - s.user_updates AS [Writes], - i.type_desc AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, - s.last_user_scan, s.last_user_lookup, s.last_user_seek -FROM sys.indexes AS i WITH (NOLOCK) -LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -ON i.[object_id] = s.[object_id] -AND i.index_id = s.index_id -AND s.database_id = DB_ID() -WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 -ORDER BY s.user_seeks + s.user_scans + s.user_lookups DESC OPTION (RECOMPILE); -- Order by reads - - --- Show which indexes in the current database are most active for Reads - - ---- Index Read/Write stats (all tables in current DB) ordered by Writes (Query 65) (Overall Index Usage - Writes) -SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, - s.user_updates AS [Writes], s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], - i.type_desc AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, - s.last_system_update, s.last_user_update -FROM sys.indexes AS i WITH (NOLOCK) -LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -ON i.[object_id] = s.[object_id] -AND i.index_id = s.index_id -AND s.database_id = DB_ID() -WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 -ORDER BY s.user_updates DESC OPTION (RECOMPILE); -- Order by writes - --- Show which indexes in the current database are most active for Writes - - --- Get in-memory OLTP index usage (Query 66) (XTP Index Usage) -SELECT OBJECT_NAME(i.[object_id]) AS [Object Name], i.index_id, i.name, i.type_desc, - xis.scans_started, xis.scans_retries, xis.rows_touched, xis.rows_returned -FROM sys.dm_db_xtp_index_stats AS xis WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON i.[object_id] = xis.[object_id] -AND i.index_id = xis.index_id -ORDER BY OBJECT_NAME(i.[object_id]) OPTION (RECOMPILE); - --- This gives you some index usage statistics for in-memory OLTP --- Returns no data if you are not using in-memory OLTP - --- Guidelines for Using Indexes on Memory-Optimized Tables --- https://msdn.microsoft.com/en-us/library/dn133166.aspx - - - --- Get lock waits for current database (Query 67) (Lock Waits) -SELECT o.name AS [table_name], i.name AS [index_name], ios.index_id, ios.partition_number, - SUM(ios.row_lock_wait_count) AS [total_row_lock_waits], - SUM(ios.row_lock_wait_in_ms) AS [total_row_lock_wait_in_ms], - SUM(ios.page_lock_wait_count) AS [total_page_lock_waits], - SUM(ios.page_lock_wait_in_ms) AS [total_page_lock_wait_in_ms], - SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) AS [total_lock_wait_in_ms] -FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) AS ios -INNER JOIN sys.objects AS o WITH (NOLOCK) -ON ios.[object_id] = o.[object_id] -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON ios.[object_id] = i.[object_id] -AND ios.index_id = i.index_id -WHERE o.[object_id] > 100 -GROUP BY o.name, i.name, ios.index_id, ios.partition_number -HAVING SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) > 0 -ORDER BY total_lock_wait_in_ms DESC OPTION (RECOMPILE); - --- This query is helpful for troubleshooting blocking and deadlocking issues - - --- Look at recent Full backups for the current database (Query 68) (Recent Full Backups) -SELECT TOP (30) bs.machine_name, bs.server_name, bs.database_name AS [Database Name], bs.recovery_model, -CONVERT (BIGINT, bs.backup_size / 1048576 ) AS [Uncompressed Backup Size (MB)], -CONVERT (BIGINT, bs.compressed_backup_size / 1048576 ) AS [Compressed Backup Size (MB)], -CONVERT (NUMERIC (20,2), (CONVERT (FLOAT, bs.backup_size) / -CONVERT (FLOAT, bs.compressed_backup_size))) AS [Compression Ratio], bs.has_backup_checksums, bs.is_copy_only, bs.encryptor_type, -DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) AS [Backup Elapsed Time (sec)], -bs.backup_finish_date AS [Backup Finish Date] -FROM msdb.dbo.backupset AS bs WITH (NOLOCK) -WHERE bs.database_name = DB_NAME(DB_ID()) -AND bs.[type] = 'D' -- Change to L if you want Log backups -ORDER BY bs.backup_finish_date DESC OPTION (RECOMPILE); - --- Are your backup sizes and times changing over time? --- Are you using backup compression? --- Have you done any backup tuning with striped backups, or changing the parameters of the backup command? - - --- These three Pluralsight Courses go into more detail about how to run these queries and interpret the results - --- SQL Server 2014 DMV Diagnostic Queries Part 1 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part1 - --- SQL Server 2014 DMV Diagnostic Queries Part 2 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part2 - --- SQL Server 2014 DMV Diagnostic Queries Part 3 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part3 - - --- Sign up for Microsoft Visual Studio Dev Essentials and get a free 3 month or 6 month pass to Pluralsight - --- Microsoft Visual Studio Dev Essentials --- https://www.visualstudio.com/products/visual-studio-dev-essentials-vs?wt.mc_id=WW_CE_BD_OO_SCL_TW_DESQLBenefitAnnouncement_SQL - - - + +-- SQL Server 2014 Diagnostic Information Queries +-- Glenn Berry +-- Last Modified: February 1, 2019 +-- https://www.sqlskills.com/blogs/glenn/ +-- http://sqlserverperformance.wordpress.com/ +-- Twitter: GlennAlanBerry + +-- Please listen to my Pluralsight courses +-- https://www.pluralsight.com/author/glenn-berry + +-- If you want to find all of our SQLskills SQL101 blog posts, check out https://www.sqlskills.com/help/sql101/ + + +-- Please make sure you are using the correct version of these diagnostic queries for your version of SQL Server! + + +-- If you like PowerShell, there is a very useful community solution for running these queries in an automated fashion +-- https://dbatools.io/ + +-- Invoke-DbaDiagnosticQuery +-- https://dbatools.io/functions/invoke-dbadiagnosticquery/ + + +--****************************************************************************** +--* Copyright (C) 2019 Glenn Berry, SQLskills.com +--* All rights reserved. +--* +--* For more scripts and sample code, check out +--* https://www.sqlskills.com/blogs/glenn +--* +--* You may alter this code for your own *non-commercial* purposes. You may +--* republish altered code as long as you include this copyright and give due credit. +--* +--* +--* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF +--* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED +--* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A +--* PARTICULAR PURPOSE. +--* +--****************************************************************************** + +-- Check the major product version to see if it is SQL Server 2014 CTP2 or greater +IF NOT EXISTS (SELECT * WHERE CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')) LIKE '12%') + BEGIN + DECLARE @ProductVersion varchar(128) = CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')); + RAISERROR ('Script does not match the ProductVersion [%s] of this instance. Many of these queries may not work on this version.' , 18 , 16 , @ProductVersion); + END + ELSE + PRINT N'You have the correct major version of SQL Server for this diagnostic information script'; + + +-- Instance level queries ******************************* + +-- SQL and OS Version information for current instance (Query 1) (Version Info) +SELECT @@SERVERNAME AS [Server Name], @@VERSION AS [SQL Server and OS Version Info]; +------ + +-- SQL Server 2014 RTM Branch Builds SQL Server 2014 SP1 Branch Builds SQL Server 2014 SP2 Branch Builds SQL Server 2014 SP23 Branch Builds +-- Build Description Release Date Build Description Release Date Build Description Release Date Build Description Release Date +-- 11.0.9120 CTP1 6/2/2013 +-- 12.0.1524 CTP2 10/15/2013 +-- 12.0.2000 RTM 4/1/2014 +-- 12.0.2342 CU1 4/21/2014 +-- 12.0.2370 CU2 6/27/2014 +-- 12.0.2402 CU3 8/18/2014 +-- 12.0.2430 CU4 10/21/2014 +-- 12.0.2456 CU5 12/17/2014 ----> 12.0.4100 SP1 RTM 5/4/2015 +-- 12.0.2474 CU5 + COD HF 2/3/2015 +-- 12.0.2480 CU6 2/16/2015 +-- 12.0.2495 CU7 4/20/2015 +-- 12.0.2546 CU8 6/19/2015 12.0.4416 SP1 CU1 6/19/2015 +-- 12.0.2553 CU9 8/17/2015 12.0.4422 SP1 CU2 8/17/2015 +-- 12.0.2556 CU10 10/19/2015 12.0.4427 SP1 CU3 10/19/2015 +-- 12.0.2560 CU11 12/21/2015 12.0.4436 SP1 CU4 12/21/2015 +-- 12.0.2564 CU12 2/22/2016 12.0.4439 SP1 CU5 2/22/2016 +-- 12.0.2568 CU13 4/18/2016 12.0.4449 SP1 CU6 4/18/2016 (Deprecated) +-- 12.0.4457 SP1 CU6 5/30/2016 (Re-release) +-- 12.0.2569 CU14 6/20/2016 12.0.4459 SP1 CU7 6/20/2016 -----------> 12.0.5000 SP2 RTM 7/11/2016 +-- 12.0.4468 SP1 CU8 8/15/2016 12.0.5511 SP2 CU1 8/25/2016 +-- 12.0.4474 SP1 CU9 10/17/2016 12.0.5522 SP2 CU2 10/17/2016 +-- 12.0.4487 SP1 CU9 + HF 11/8/2016 12.0.5532 SP2 CU2 + HF 11/8/2016 +-- 12.0.4491 SP1 CU10 12/28/2016 12.0.5537 SP2 CU3 12/28/2016 +-- 12.0.4502 SP1 CU11 2/21/2017 12.0.5540 SP2 CU4 2/21/2017 +-- 12.0.4511 SP1 CU12 4/17/2017 12.0.5546 SP2 CU5 4/17/2017 +-- 12.0.4522 SP1 CU13 7/17/2017 12.0.5552 SP2 CU6 7/17/2017 +-- 12.0.5556 SP2 CU7 8/28/2017 +-- 12.0.5557 SP2 CU8 10/16/2017 +-- 12.0.5563 SP2 CU9 12/18/2017 +-- 12.0.5571 SP2 CU10 1/16/2018 +-- 12.0.5579 SP2 CU11 3/19/2018 +-- 12.0.5589 SP2 CU12 6/18/2018 +-- 12.0.5590 SP2 CU13 8/27/2018 +-- 12.0.5600 SP2 CU14 10/15/2018 +-- 12.0.6024 SP3 RTM 10/30/2018 +-- 12.0.5605 SP2 CU15 12/12/2018 ----> 12.0.6205 SP3 CU1 12/12/2018 + + + +-- How to determine the version, edition and update level of SQL Server and its components +-- https://bit.ly/2oAjKgW + +-- SQL Server 2014 build versions +-- https://bit.ly/2HpmYOG + +-- Where to find information about the latest SQL Server builds +-- https://bit.ly/2IGHbfY + +-- Recommended updates and configuration options for SQL Server 2012 and SQL Server 2014 used with high-performance workloads +-- https://bit.ly/2Hy3zIZ + +-- Performance and Stability Related Fixes in Post-SQL Server 2014 RTM Builds +-- https://bit.ly/2Hx50HU + +-- Performance and Stability Related Fixes in Post-SQL Server 2014 SP1 Builds +-- https://bit.ly/2GWLx6a + +-- Performance and Stability Related Fixes in Post-SQL Server 2014 SP2 Builds +-- https://bit.ly/2iJ9G4N + +-- Performance and Stability Related Fixes in Post-SQL Server 2014 SP3 Builds +-- https://bit.ly/2PRGTWS + +-- Announcing updates to the SQL Server Incremental Servicing Model (ISM) +-- https://bit.ly/1RzYITz + +-- Update Center for Microsoft SQL Server +-- https://bit.ly/2pZptuQ + +-- Download SQL Server Management Studio (SSMS) +-- https://bit.ly/1OcupT9 + +-- Download and install Azure Data Studio +-- https://bit.ly/2vgke1A + + +-- Get socket, physical core and logical core count from the SQL Server Error log. (Query 2) (Core Counts) +-- This query might take a few seconds depending on the size of your error log +EXEC sys.xp_readerrorlog 0, 1, N'detected', N'socket'; +------ + +-- This can help you determine the exact core counts used by SQL Server and whether HT is enabled or not +-- It can also help you confirm your SQL Server licensing model +-- Be on the lookout for this message "using 40 logical processors based on SQL Server licensing" +-- (when you have more than 40 logical cores) which means grandfathered Server/CAL licensing +-- This query will return no results if your error log has been recycled since the instance was last started + + + +-- Get selected server properties (Query 3) (Server Properties) +SELECT SERVERPROPERTY('MachineName') AS [MachineName], +SERVERPROPERTY('ServerName') AS [ServerName], +SERVERPROPERTY('InstanceName') AS [Instance], +SERVERPROPERTY('IsClustered') AS [IsClustered], +SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS [ComputerNamePhysicalNetBIOS], +SERVERPROPERTY('Edition') AS [Edition], +SERVERPROPERTY('ProductLevel') AS [ProductLevel], -- What servicing branch (RTM/SP/CU) +SERVERPROPERTY('ProductUpdateLevel') AS [ProductUpdateLevel], -- Within a servicing branch, what CU# is applied +SERVERPROPERTY('ProductVersion') AS [ProductVersion], +SERVERPROPERTY('ProductMajorVersion') AS [ProductMajorVersion], +SERVERPROPERTY('ProductMinorVersion') AS [ProductMinorVersion], +SERVERPROPERTY('ProductBuild') AS [ProductBuild], +SERVERPROPERTY('ProductBuildType') AS [ProductBuildType], -- Is this a GDR or OD hotfix (NULL if on a CU build) +SERVERPROPERTY('ProductUpdateReference') AS [ProductUpdateReference], -- KB article number that is applicable for this build +SERVERPROPERTY('ProcessID') AS [ProcessID], +SERVERPROPERTY('Collation') AS [Collation], +SERVERPROPERTY('IsFullTextInstalled') AS [IsFullTextInstalled], +SERVERPROPERTY('IsIntegratedSecurityOnly') AS [IsIntegratedSecurityOnly], +SERVERPROPERTY('FilestreamConfiguredLevel') AS [FilestreamConfiguredLevel], +SERVERPROPERTY('IsHadrEnabled') AS [IsHadrEnabled], +SERVERPROPERTY('HadrManagerStatus') AS [HadrManagerStatus], +SERVERPROPERTY('InstanceDefaultDataPath') AS [InstanceDefaultDataPath], +SERVERPROPERTY('InstanceDefaultLogPath') AS [InstanceDefaultLogPath], +SERVERPROPERTY('BuildClrVersion') AS [Build CLR Version], +SERVERPROPERTY('IsXTPSupported') AS [IsXTPSupported]; +------ + +-- This gives you a lot of useful information about your instance of SQL Server, +-- such as the ProcessID for SQL Server and your collation +-- Note: Some columns will be NULL on older SQL Server builds + +-- SERVERPROPERTY (Transact-SQL) +-- https://bit.ly/2eeaXeI + + +-- Get instance-level configuration values for instance (Query 4) (Configuration Values) +SELECT name, value, value_in_use, minimum, maximum, [description], is_dynamic, is_advanced +FROM sys.configurations WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Focus on these settings: +-- backup checksum default (should be 1) +-- backup compression default (should be 1 in most cases) +-- clr enabled (only enable if it is needed) +-- cost threshold for parallelism (depends on your workload) +-- lightweight pooling (should be zero) +-- max degree of parallelism (depends on your workload and hardware) +-- max server memory (MB) (set to an appropriate value, not the default) +-- optimize for ad hoc workloads (should be 1) +-- priority boost (should be zero) +-- remote admin connections (should be 1) + + +-- Returns a list of all global trace flags that are enabled (Query 5) (Global Trace Flags) +DBCC TRACESTATUS (-1); +------ + +-- If no global trace flags are enabled, no results will be returned. +-- It is very useful to know what global trace flags are currently enabled as part of the diagnostic process. + +-- Common trace flags that should be enabled in most cases +-- TF 1117 - When growing a data file, grow all files at the same time so they remain the same size, reducing allocation contention points +-- https://bit.ly/2GY1kOl +-- +-- TF 1118 - Helps alleviate allocation contention in tempdb, SQL Server allocates full extents to each database object, +-- thereby eliminating the contention on SGAM pages (more important with older versions of SQL Server) +-- Recommendations to reduce allocation contention in SQL Server tempdb database +-- https://bit.ly/2GY1kOl + +-- TF 2371 - Lowers auto update statistics threshold for large tables (on tables with more than 25,000 rows) +-- https://bit.ly/2HySkAg + +-- TF 3226 - Supresses logging of successful database backup messages to the SQL Server Error Log +-- https://bit.ly/2p6MTjS + +-- TF 3449 - Enables use of dirty page manager (SQL Server 2014 SP1 CU7 and later) +-- https://bit.ly/2uj0h5M + +-- TF 6533 - Spatial performance improvements in SQL Server 2012 and 2014 +-- https://bit.ly/2v7C7ze + +-- TF 6534 - Enables use of native code to improve performance with spatial data +-- https://bit.ly/2HrQUpU + +-- TF 8079 - Enables automatic soft-NUMA on systems with eight or more physical cores per NUMA node (with SQL Server 2014 SP2) +-- https://bit.ly/29B7oR8 + +-- DBCC TRACEON - Trace Flags (Transact-SQL) +-- https://bit.ly/2FuSvPg + + + +-- Returns status of instant file initialization (Query 6) (IFI Status) +EXEC sys.xp_readerrorlog 0, 1, N'Database Instant File Initialization'; +------ + +-- Lets you determine whether Instant File Initialization (IFI) is enabled for the instance +-- This should be enabled in the vast majority of cases + + +-- Database Instant File Initialization +-- https://bit.ly/2nTX74y + +-- Misconceptions around instant file initialization +-- https://bit.ly/2oBSKgZ + + + +-- SQL Server Process Address space info (Query 7) (Process Memory) +-- (shows whether locked pages is enabled, among other things) +SELECT physical_memory_in_use_kb/1024 AS [SQL Server Memory Usage (MB)], + locked_page_allocations_kb/1024 AS [SQL Server Locked Pages Allocation (MB)], + large_page_allocations_kb/1024 AS [SQL Server Large Pages Allocation (MB)], + page_fault_count, memory_utilization_percentage, available_commit_limit_kb, + process_physical_memory_low, process_virtual_memory_low +FROM sys.dm_os_process_memory WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You want to see 0 for process_physical_memory_low +-- You want to see 0 for process_virtual_memory_low +-- This indicates that you are not under internal memory pressure +-- If locked_page_allocations_kb > 0, then LPIM is enabled + +-- How to enable the "locked pages" feature in SQL Server 2012 +-- https://bit.ly/2F5UjOA + +-- Memory Management Architecture Guide +-- https://bit.ly/2JKkadC + + + +-- SQL Server Services information (Query 8) (SQL Server Services Info) +SELECT servicename, process_id, startup_type_desc, status_desc, +last_startup_time, service_account, is_clustered, cluster_nodename, [filename] +FROM sys.dm_server_services WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Tells you the account being used for the SQL Server Service and the SQL Agent Service +-- Shows the process_id, when they were last started, and their current status +-- Also shows whether you are running on a failover cluster instance, and what node you are running on + +-- sys.dm_server_services (Transact-SQL) +-- https://bit.ly/2oKa1Un + + +-- Last backup information by database (Query 9) (Last Backup By Database) +SELECT ISNULL(d.[name], bs.[database_name]) AS [Database], d.recovery_model_desc AS [Recovery Model], + d.log_reuse_wait_desc AS [Log Reuse Wait Desc], + MAX(CASE WHEN [type] = 'D' THEN bs.backup_finish_date ELSE NULL END) AS [Last Full Backup], + MAX(CASE WHEN [type] = 'I' THEN bs.backup_finish_date ELSE NULL END) AS [Last Differential Backup], + MAX(CASE WHEN [type] = 'L' THEN bs.backup_finish_date ELSE NULL END) AS [Last Log Backup] +FROM sys.databases AS d WITH (NOLOCK) +LEFT OUTER JOIN msdb.dbo.backupset AS bs WITH (NOLOCK) +ON bs.[database_name] = d.[name] +AND bs.backup_finish_date > GETDATE()- 30 +WHERE d.name <> N'tempdb' +GROUP BY ISNULL(d.[name], bs.[database_name]), d.recovery_model_desc, d.log_reuse_wait_desc, d.[name] +ORDER BY d.recovery_model_desc, d.[name] OPTION (RECOMPILE); +------ + +-- This helps you spot runaway transaction logs and other issues with your backup schedule + + +-- Get SQL Server Agent jobs and Category information (Query 10) (SQL Server Agent Jobs) +SELECT sj.name AS [Job Name], sj.[description] AS [Job Description], SUSER_SNAME(sj.owner_sid) AS [Job Owner], +sj.date_created AS [Date Created], sj.[enabled] AS [Job Enabled], +sj.notify_email_operator_id, sj.notify_level_email, sc.name AS [CategoryName], +s.[enabled] AS [Sched Enabled], js.next_run_date, js.next_run_time +FROM msdb.dbo.sysjobs AS sj WITH (NOLOCK) +INNER JOIN msdb.dbo.syscategories AS sc WITH (NOLOCK) +ON sj.category_id = sc.category_id +LEFT OUTER JOIN msdb.dbo.sysjobschedules AS js WITH (NOLOCK) +ON sj.job_id = js.job_id +LEFT OUTER JOIN msdb.dbo.sysschedules AS s WITH (NOLOCK) +ON js.schedule_id = s.schedule_id +ORDER BY sj.name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent jobs, who owns them and how they are configured +-- Look for Agent jobs that are not owned by sa +-- Look for jobs that have a notify_email_operator_id set to 0 (meaning no operator) +-- Look for jobs that have a notify_level_email set to 0 (meaning no e-mail is ever sent) +-- +-- MSDN sysjobs documentation +-- https://bit.ly/2paDEOP + +-- SQL Server Maintenance Solution +-- https://bit.ly/1pgchQu + + +-- Get SQL Server Agent Alert Information (Query 11) (SQL Server Agent Alerts) +SELECT name, event_source, message_id, severity, [enabled], has_notification, + delay_between_responses, occurrence_count, last_occurrence_date, last_occurrence_time +FROM msdb.dbo.sysalerts WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent Alerts +-- (which are different from SQL Server Agent jobs) +-- Read more about Agent Alerts here: https://bit.ly/2Giz0Xf + + + +-- Windows information (Query 12) (Windows Info) +SELECT windows_release, windows_service_pack_level, + windows_sku, os_language_version +FROM sys.dm_os_windows_info WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Gives you major OS version, Service Pack, Edition, and language info for the operating system +-- 10.0 is either Windows 10 or Windows Server 2016 +-- 6.3 is either Windows 8.1, or Windows Server 2012 R2 +-- 6.2 is either Windows 8 or Windows Server 2012 +-- 6.1 is either Windows 7 or Windows Server 2008 R2 +-- 6.0 is either Windows Vista or Windows Server 2008 + +-- Windows SKU codes +-- 4 is Enterprise Edition +-- 7 is Standard Server Edition +-- 8 is Datacenter Server Edition +-- 10 is Enterprise Server Edition +-- 48 is Professional Edition +-- 161 is Pro for Workstations + +-- 1033 for os_language_version is US-English + +-- SQL Server 2014 requires Windows Server 2008 SP2 or newer + +-- Hardware and Software Requirements for Installing SQL Server 2014 +-- https://bit.ly/1yRYXkQ + +-- Using SQL Server in Windows 8 and later versions of Windows operating system +-- https://bit.ly/2F7Ax0P + + + +-- SQL Server NUMA Node information (Query 13) (SQL Server NUMA Info) +SELECT node_id, node_state_desc, memory_node_id, processor_group, online_scheduler_count, + idle_scheduler_count, active_worker_count, avg_load_balance, resource_monitor_state +FROM sys.dm_os_nodes WITH (NOLOCK) +WHERE node_state_desc <> N'ONLINE DAC' OPTION (RECOMPILE); +------ + +-- Gives you some useful information about the composition and relative load on your NUMA nodes +-- You want to see an equal number of schedulers on each NUMA node +-- Watch out if SQL Server 2014 Standard Edition has been installed +-- on a physical or virtual machine with more than four sockets or more than 16 physical cores + +-- sys.dm_os_nodes (Transact-SQL) +-- https://bit.ly/2pn5Mw8 + +-- Balancing Your Available SQL Server Core Licenses Evenly Across NUMA Nodes +-- https://bit.ly/2vfC4Rq + + + +-- Good basic information about OS memory amounts and state (Query 14) (System Memory) +SELECT total_physical_memory_kb/1024 AS [Physical Memory (MB)], + available_physical_memory_kb/1024 AS [Available Memory (MB)], + total_page_file_kb/1024 AS [Total Page File (MB)], + available_page_file_kb/1024 AS [Available Page File (MB)], + system_cache_kb/1024 AS [System Cache (MB)], + system_memory_state_desc AS [System Memory State] +FROM sys.dm_os_sys_memory WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You want to see "Available physical memory is high" for System Memory State +-- This indicates that you are not under external memory pressure + +-- Possible System Memory State values: +-- Available physical memory is high +-- Physical memory usage is steady +-- Available physical memory is low +-- Available physical memory is running low +-- Physical memory state is transitioning + +-- sys.dm_os_sys_memory (Transact-SQL) +-- https://bit.ly/2pcV0xq + + + +-- You can skip the next two queries if you know you don't have a clustered instance + + +-- Get information about your cluster nodes and their status (Query 15) (Cluster Node Properties) +-- (if your database server is in a failover cluster) +SELECT NodeName, status_description, is_current_owner +FROM sys.dm_os_cluster_nodes WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Knowing which node owns the cluster resources is critical +-- Especially when you are installing Windows or SQL Server updates +-- You will see no results if your instance is not clustered + +-- Recommended hotfixes and updates for Windows Server 2012 R2-based failover clusters +-- https://bit.ly/1z5BfCw + + +-- Get information about any AlwaysOn AG cluster this instance is a part of (Query 16) (AlwaysOn AG Cluster) +SELECT cluster_name, quorum_type_desc, quorum_state_desc +FROM sys.dm_hadr_cluster WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You will see no results if your instance is not using AlwaysOn AGs + + +-- Good overview of AG health and status (Query 17) (AlwaysOn AG Status) +SELECT ag.name AS [AG Name], ar.replica_server_name, ar.availability_mode_desc, adc.[database_name], + drs.is_local, drs.is_primary_replica, drs.synchronization_state_desc, drs.is_commit_participant, + drs.synchronization_health_desc, drs.recovery_lsn, drs.truncation_lsn, drs.last_sent_lsn, + drs.last_sent_time, drs.last_received_lsn, drs.last_received_time, drs.last_hardened_lsn, + drs.last_hardened_time, drs.last_redone_lsn, drs.last_redone_time, drs.log_send_queue_size, + drs.log_send_rate, drs.redo_queue_size, drs.redo_rate, drs.filestream_send_rate, + drs.end_of_log_lsn, drs.last_commit_lsn, drs.last_commit_time, drs.database_state_desc +FROM sys.dm_hadr_database_replica_states AS drs WITH (NOLOCK) +INNER JOIN sys.availability_databases_cluster AS adc WITH (NOLOCK) +ON drs.group_id = adc.group_id +AND drs.group_database_id = adc.group_database_id +INNER JOIN sys.availability_groups AS ag WITH (NOLOCK) +ON ag.group_id = drs.group_id +INNER JOIN sys.availability_replicas AS ar WITH (NOLOCK) +ON drs.group_id = ar.group_id +AND drs.replica_id = ar.replica_id +ORDER BY ag.name, ar.replica_server_name, adc.[database_name] OPTION (RECOMPILE); + +-- You will see no results if your instance is not using AlwaysOn AGs + + +-- Hardware information from SQL Server 2014 (Query 18) (Hardware Info) +SELECT cpu_count AS [Logical CPU Count], scheduler_count, + hyperthread_ratio AS [Hyperthread Ratio], + cpu_count/hyperthread_ratio AS [Physical CPU Count], + physical_memory_kb/1024 AS [Physical Memory (MB)], + committed_kb/1024 AS [Committed Memory (MB)], + committed_target_kb/1024 AS [Committed Target Memory (MB)], + max_workers_count AS [Max Workers Count], + affinity_type_desc AS [Affinity Type], + sqlserver_start_time AS [SQL Server Start Time], + DATEDIFF(hour, sqlserver_start_time, GETDATE()) AS [SQL Server Up Time (hrs)], + virtual_machine_type_desc AS [Virtual Machine Type] +FROM sys.dm_os_sys_info WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Gives you some good basic hardware information about your database server +-- Cannot distinguish between HT and multi-core +-- Note: virtual_machine_type_desc of HYPERVISOR does not automatically mean you are running SQL Server inside of a VM +-- It merely indicates that you have a hypervisor running on your host + +-- sys.dm_os_sys_info (Transact-SQL) +-- https://bit.ly/2pczOYs + +-- Soft NUMA configuration was a new column for SQL Server 2016 +-- OFF = Soft-NUMA feature is OFF +-- ON = SQL Server automatically determines the NUMA node sizes for Soft-NUMA +-- MANUAL = Manually configured soft-NUMA + +-- Configure SQL Server to Use Soft-NUMA (SQL Server) +-- https://bit.ly/2HTpKJt + + + +-- Get System Manufacturer and model number from SQL Server Error log (Query 19) (System Manufacturer) +EXEC sys.xp_readerrorlog 0, 1, N'Manufacturer'; +------ + +-- This can help you determine the capabilities and capacities of your database server +-- Can also be used to confirm if you are running in a VM +-- This query might take a few seconds if you have not recycled your error log recently +-- This query will return no results if your error log has been recycled since the instance was started + + +-- Get pvscsi info from Windows Registry (Query 20) (PVSCSI Driver Parameters) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'SYSTEM\CurrentControlSet\services\pvscsi\Parameters\Device', N'DriverParameter'; +------ + +-- This is valid for VMware VMs +-- Recommended value for intensive I/O patterns from VMware is: RequestRingPages=32,MaxQueueDepth=254 +-- https://kb.vmware.com/s/article/2053145 + + +-- Get BIOS date from Windows Registry (Query 21) (BIOS Date) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\BIOS', N'BiosReleaseDate'; +------ + +-- Helps you understand whether the main system BIOS is up to date, and the possible age of the hardware +-- Not as useful for virtualization + + +-- Get processor description from Windows Registry (Query 22) (Processor Description) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\CentralProcessor\0', N'ProcessorNameString'; +------ + +-- Gives you the model number and rated clock speed of your processor(s) +-- Your processors may be running at less than the rated clock speed due +-- to the Windows Power Plan or hardware power management + +-- You can use CPU-Z to get your actual CPU core speed and a lot of other useful information +-- https://bit.ly/QhR6xF + +-- You can learn more about processor selection for SQL Server by following this link +-- https://bit.ly/2F3aVlP + + + +-- See if buffer pool extension (BPE) is enabled (Query 23) (BPE Configuration) +SELECT [path], state_description, current_size_in_kb, +CAST(current_size_in_kb/1048576.0 AS DECIMAL(10,2)) AS [Size (GB)] +FROM sys.dm_os_buffer_pool_extension_configuration WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- BPE is available in both Standard Edition and Enterprise Edition +-- It is a more interesting feature for Standard Edition + +-- Buffer Pool Extension to SSDs in SQL Server 2014 +-- https://bit.ly/1bm08m8 + +-- Buffer Pool Extension +-- https://bit.ly/2oBuieO + + + +-- Look at buffer descriptors to see BPE usage by database (Query 24) (BPE Usage) +SELECT DB_NAME(database_id) AS [Database Name], COUNT(page_id) AS [Page Count], +CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], +AVG(read_microsec) AS [Avg Read Time (microseconds)] +FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) +WHERE database_id <> 32767 +AND is_in_bpool_extension = 1 +GROUP BY DB_NAME(database_id) +ORDER BY [Buffer size(MB)] DESC OPTION (RECOMPILE); +------ + +-- You will see no results if BPE is not enabled or if there is no BPE usage + + +-- Get information on location, time and size of any memory dumps from SQL Server (Query 25) (Memory Dump Info) +SELECT [filename], creation_time, size_in_bytes/1048576.0 AS [Size (MB)] +FROM sys.dm_server_memory_dumps WITH (NOLOCK) +ORDER BY creation_time DESC OPTION (RECOMPILE); +------ + +-- This will not return any rows if you have +-- not had any memory dumps (which is a good thing) + +-- sys.dm_server_memory_dumps (Transact-SQL) +-- https://bit.ly/2elwWll + + + +-- Look at Suspect Pages table (Query 26) (Suspect Pages) +SELECT DB_NAME(database_id) AS [Database Name], [file_id], page_id, + event_type, error_count, last_update_date +FROM msdb.dbo.suspect_pages WITH (NOLOCK) +ORDER BY database_id OPTION (RECOMPILE); +------ + +-- event_type value descriptions +-- 1 = 823 error caused by an operating system CRC error +-- or 824 error other than a bad checksum or a torn page (for example, a bad page ID) +-- 2 = Bad checksum +-- 3 = Torn page +-- 4 = Restored (The page was restored after it was marked bad) +-- 5 = Repaired (DBCC repaired the page) +-- 7 = Deallocated by DBCC + +-- Ideally, this query returns no results. The table is limited to 1000 rows. +-- If you do get results here, you should do further investigation to determine the root cause + +-- Manage the suspect_pages Table +-- https://bit.ly/2Fvr1c9 + + +-- Get number of data files in tempdb database (Query 27) (Tempdb Data Files) +EXEC sys.xp_readerrorlog 0, 1, N'The tempdb database has'; +------ + +-- Get the number of data files in the tempdb database +-- 4-8 data files that are all the same size is a good starting point +-- This query will return no results if your error log has been recycled since the instance was last started +-- This will be blank unless you have Service Pack 2 or later + + +-- File names and paths for all user and system databases on instance (Query 28) (Database Filenames and Paths) +SELECT DB_NAME([database_id]) AS [Database Name], + [file_id], [name], physical_name, [type_desc], state_desc, + is_percent_growth, growth, + CONVERT(bigint, growth/128.0) AS [Growth in MB], + CONVERT(bigint, size/128.0) AS [Total Size in MB] +FROM sys.master_files WITH (NOLOCK) +ORDER BY DB_NAME([database_id]), [file_id] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- Are data files and log files on different drives? +-- Is everything on the C: drive? +-- Is tempdb on dedicated drives? +-- Is there only one tempdb data file? +-- Are all of the tempdb data files the same size? +-- Are there multiple data files for user databases? +-- Is percent growth enabled for any files (which is bad)? + + +-- Volume info for all LUNS that have database files on the current instance (Query 29) (Volume Info) +SELECT DISTINCT vs.volume_mount_point, vs.file_system_type, vs.logical_volume_name, +CONVERT(DECIMAL(18,2), vs.total_bytes/1073741824.0) AS [Total Size (GB)], +CONVERT(DECIMAL(18,2), vs.available_bytes/1073741824.0) AS [Available Size (GB)], +CONVERT(DECIMAL(18,2), vs.available_bytes * 1. / vs.total_bytes * 100.) AS [Space Free %], +vs.supports_compression, vs.is_compressed, +vs.supports_sparse_files, vs.supports_alternate_streams +FROM sys.master_files AS f WITH (NOLOCK) +CROSS APPLY sys.dm_os_volume_stats(f.database_id, f.[file_id]) AS vs +ORDER BY vs.volume_mount_point OPTION (RECOMPILE); +------ + +-- Shows you the total and free space on the LUNs where you have database files +-- Being low on free space can negatively affect performance + +-- sys.dm_os_volume_stats (Transact-SQL) +-- https://bit.ly/2oBPNNr + + + +-- Drive level latency information (Query 30) (Drive Level Latency) +-- Based on code from Jimmy May +SELECT tab.[Drive], tab.volume_mount_point AS [Volume Mount Point], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (io_stall_read_ms/num_of_reads) + END AS [Read Latency], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (io_stall_write_ms/num_of_writes) + END AS [Write Latency], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE (io_stall/(num_of_reads + num_of_writes)) + END AS [Overall Latency], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (num_of_bytes_read/num_of_reads) + END AS [Avg Bytes/Read], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (num_of_bytes_written/num_of_writes) + END AS [Avg Bytes/Write], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE ((num_of_bytes_read + num_of_bytes_written)/(num_of_reads + num_of_writes)) + END AS [Avg Bytes/Transfer] +FROM (SELECT LEFT(UPPER(mf.physical_name), 2) AS Drive, SUM(num_of_reads) AS num_of_reads, + SUM(io_stall_read_ms) AS io_stall_read_ms, SUM(num_of_writes) AS num_of_writes, + SUM(io_stall_write_ms) AS io_stall_write_ms, SUM(num_of_bytes_read) AS num_of_bytes_read, + SUM(num_of_bytes_written) AS num_of_bytes_written, SUM(io_stall) AS io_stall, vs.volume_mount_point + FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS vfs + INNER JOIN sys.master_files AS mf WITH (NOLOCK) + ON vfs.database_id = mf.database_id AND vfs.file_id = mf.file_id + CROSS APPLY sys.dm_os_volume_stats(mf.database_id, mf.[file_id]) AS vs + GROUP BY LEFT(UPPER(mf.physical_name), 2), vs.volume_mount_point) AS tab +ORDER BY [Overall Latency] OPTION (RECOMPILE); +------ + +-- Shows you the drive-level latency for reads and writes, in milliseconds +-- Latency above 30-40ms is usually a problem +-- These latency numbers include all file activity against all SQL Server +-- database files on each drive since SQL Server was last started + + +-- Calculates average stalls per read, per write, and per total input/output for each database file (Query 31) (IO Latency by File) +SELECT DB_NAME(fs.database_id) AS [Database Name], CAST(fs.io_stall_read_ms/(1.0 + fs.num_of_reads) AS NUMERIC(10,1)) AS [avg_read_latency_ms], +CAST(fs.io_stall_write_ms/(1.0 + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_write_latency_ms], +CAST((fs.io_stall_read_ms + fs.io_stall_write_ms)/(1.0 + fs.num_of_reads + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_io_latency_ms], +CONVERT(DECIMAL(18,2), mf.size/128.0) AS [File Size (MB)], mf.physical_name, mf.type_desc, fs.io_stall_read_ms, fs.num_of_reads, +fs.io_stall_write_ms, fs.num_of_writes, fs.io_stall_read_ms + fs.io_stall_write_ms AS [io_stalls], fs.num_of_reads + fs.num_of_writes AS [total_io], +io_stall_queued_read_ms AS [Resource Governor Total Read IO Latency (ms)], io_stall_queued_write_ms AS [Resource Governor Total Write IO Latency (ms)] +FROM sys.dm_io_virtual_file_stats(null,null) AS fs +INNER JOIN sys.master_files AS mf WITH (NOLOCK) +ON fs.database_id = mf.database_id +AND fs.[file_id] = mf.[file_id] +ORDER BY avg_io_latency_ms DESC OPTION (RECOMPILE); +------ + +-- Helps determine which database files on the entire instance have the most I/O bottlenecks +-- This can help you decide whether certain LUNs are overloaded and whether you might +-- want to move some files to a different location or perhaps improve your I/O performance +-- These latency numbers include all file activity against each SQL Server +-- database file since SQL Server was last started + + +-- Look for I/O requests taking longer than 15 seconds in the six most recent SQL Server Error Logs (Query 32) (IO Warnings) +CREATE TABLE #IOWarningResults(LogDate datetime, ProcessInfo sysname, LogText nvarchar(1000)); + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 0, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 1, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 2, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 3, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 4, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 5, 1, N'taking longer than 15 seconds'; + +SELECT LogDate, ProcessInfo, LogText +FROM #IOWarningResults +ORDER BY LogDate DESC; + +DROP TABLE #IOWarningResults; +------ + +-- Finding 15 second I/O warnings in the SQL Server Error Log is useful evidence of +-- poor I/O performance (which might have many different causes) +-- Look to see if you see any patterns in the results (same files, same drives, same time of day, etc.) + +-- Diagnostics in SQL Server help detect stalled and stuck I/O operations +-- https://bit.ly/2qtaw73 + + +-- Resource Governor Resource Pool information (Query 33) (RG Resource Pools) +SELECT pool_id, [Name], statistics_start_time, + min_memory_percent, max_memory_percent, + max_memory_kb/1024 AS [max_memory_mb], + used_memory_kb/1024 AS [used_memory_mb], + target_memory_kb/1024 AS [target_memory_mb], + min_iops_per_volume, max_iops_per_volume +FROM sys.dm_resource_governor_resource_pools WITH (NOLOCK) +OPTION (RECOMPILE); +------ + +-- sys.dm_resource_governor_resource_pools (Transact-SQL) +-- https://bit.ly/2MVU0Vy + + + +-- Recovery model, log reuse wait description, log file size, log usage size (Query 34) (Database Properties) +-- and compatibility level for all databases on instance +SELECT db.[name] AS [Database Name], SUSER_SNAME(db.owner_sid) AS [Database Owner], db.recovery_model_desc AS [Recovery Model], +db.state_desc, db.containment_desc, db.log_reuse_wait_desc AS [Log Reuse Wait Description], +CONVERT(DECIMAL(18,2), ls.cntr_value/1024.0) AS [Log Size (MB)], CONVERT(DECIMAL(18,2), lu.cntr_value/1024.0) AS [Log Used (MB)], +CAST(CAST(lu.cntr_value AS FLOAT) / CAST(ls.cntr_value AS FLOAT)AS DECIMAL(18,2)) * 100 AS [Log Used %], +db.[compatibility_level] AS [DB Compatibility Level], db.page_verify_option_desc AS [Page Verify Option], +db.is_auto_create_stats_on, db.is_auto_update_stats_on, db.is_auto_update_stats_async_on, db.is_parameterization_forced, +db.snapshot_isolation_state_desc, db.is_read_committed_snapshot_on, db.is_auto_close_on, db.is_auto_shrink_on, +db.target_recovery_time_in_seconds, db.is_cdc_enabled, db.is_published, db.is_distributor, db.is_encrypted, +db.group_database_id, db.replica_id,db.is_memory_optimized_elevate_to_snapshot_on, +db.delayed_durability_desc, db.is_auto_create_stats_incremental_on, +db.is_encrypted, de.encryption_state, de.percent_complete, de.key_algorithm, de.key_length +FROM sys.databases AS db WITH (NOLOCK) +INNER JOIN sys.dm_os_performance_counters AS lu WITH (NOLOCK) +ON db.name = lu.instance_name +INNER JOIN sys.dm_os_performance_counters AS ls WITH (NOLOCK) +ON db.name = ls.instance_name +LEFT OUTER JOIN sys.dm_database_encryption_keys AS de WITH (NOLOCK) +ON db.database_id = de.database_id +WHERE lu.counter_name LIKE N'Log File(s) Used Size (KB)%' +AND ls.counter_name LIKE N'Log File(s) Size (KB)%' +AND ls.cntr_value > 0 +ORDER BY db.[name] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- How many databases are on the instance? +-- What recovery models are they using? +-- What is the log reuse wait description? +-- How full are the transaction logs? +-- What compatibility level are the databases on? +-- What is the Page Verify Option? (should be CHECKSUM) +-- Is Auto Update Statistics Asynchronously enabled? +-- Make sure auto_shrink and auto_close are not enabled! + + + +-- Missing Indexes for all databases by Index Advantage (Query 35) (Missing Indexes All Databases) +SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +FORMAT(migs.last_user_seek, 'yyyy-MM-dd HH:mm:ss') AS [last_user_seek], +mid.[statement] AS [Database.Schema.Table], +COUNT(1) OVER(PARTITION BY mid.[statement]) AS [missing_indexes_for_table], +COUNT(1) OVER(PARTITION BY mid.[statement], equality_columns) AS [similar_missing_indexes_for_table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, +CONVERT(decimal(18,2), migs.avg_total_user_cost) AS [avg_total_user_cost], migs.avg_user_impact +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Getting missing index information for all of the databases on the instance is very useful +-- Look at last user seek time, number of user seeks to help determine source and importance +-- Also look at avg_user_impact and avg_total_user_cost to help determine importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + +-- SQL Server Index Design Guide +-- https://bit.ly/2qtZr4N + + + +-- Get VLF Counts for all databases on the instance (Query 36) (VLF Counts) +-- (adapted from Michelle Ufford) +CREATE TABLE #VLFInfo (RecoveryUnitID int, FileID int, + FileSize bigint, StartOffset bigint, + FSeqNo bigint, [Status] bigint, + Parity bigint, CreateLSN numeric(38)); + +CREATE TABLE #VLFCountResults(DatabaseName sysname, VLFCount int); + +EXEC sp_MSforeachdb N'Use [?]; + + INSERT INTO #VLFInfo + EXEC sp_executesql N''DBCC LOGINFO([?])''; + + INSERT INTO #VLFCountResults + SELECT DB_NAME(), COUNT(*) + FROM #VLFInfo; + + TRUNCATE TABLE #VLFInfo;' + +SELECT DatabaseName, VLFCount +FROM #VLFCountResults +ORDER BY VLFCount DESC; + +DROP TABLE #VLFInfo; +DROP TABLE #VLFCountResults; +------ + +-- High VLF counts can affect write performance to the log file +-- and they can make full database restores and crash recovery take much longer +-- Try to keep your VLF counts under 200 in most cases (depending on log file size) + +-- Important change to VLF creation algorithm in SQL Server 2014 +-- https://bit.ly/2Hsjbg4 + +-- SQL Server Transaction Log Architecture and Management Guide +-- https://bit.ly/2JjmQRZ + + + +-- Get CPU utilization by database (Query 37) (CPU Usage by Database) +WITH DB_CPU_Stats +AS +(SELECT pa.DatabaseID, DB_Name(pa.DatabaseID) AS [Database Name], SUM(qs.total_worker_time/1000) AS [CPU_Time_Ms] + FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) + CROSS APPLY (SELECT CONVERT(int, value) AS [DatabaseID] + FROM sys.dm_exec_plan_attributes(qs.plan_handle) + WHERE attribute = N'dbid') AS pa + GROUP BY DatabaseID) +SELECT ROW_NUMBER() OVER(ORDER BY [CPU_Time_Ms] DESC) AS [CPU Rank], + [Database Name], [CPU_Time_Ms] AS [CPU Time (ms)], + CAST([CPU_Time_Ms] * 1.0 / SUM([CPU_Time_Ms]) OVER() * 100.0 AS DECIMAL(5, 2)) AS [CPU Percent] +FROM DB_CPU_Stats +WHERE DatabaseID <> 32767 -- ResourceDB +ORDER BY [CPU Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most CPU resources on the instance +-- Note: This only reflects CPU usage from the currently cached query plans + + +-- Get I/O utilization by database (Query 38) (IO Usage By Database) +WITH Aggregate_IO_Statistics +AS (SELECT DB_NAME(database_id) AS [Database Name], + CAST(SUM(num_of_bytes_read + num_of_bytes_written) / 1048576 AS DECIMAL(12, 2)) AS [ioTotalMB], + CAST(SUM(num_of_bytes_read ) / 1048576 AS DECIMAL(12, 2)) AS [ioReadMB], + CAST(SUM(num_of_bytes_written) / 1048576 AS DECIMAL(12, 2)) AS [ioWriteMB] + FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS [DM_IO_STATS] + GROUP BY database_id) +SELECT ROW_NUMBER() OVER (ORDER BY ioTotalMB DESC) AS [I/O Rank], + [Database Name], ioTotalMB AS [Total I/O (MB)], + CAST(ioTotalMB / SUM(ioTotalMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Total I/O %], + ioReadMB AS [Read I/O (MB)], + CAST(ioReadMB / SUM(ioReadMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Read I/O %], + ioWriteMB AS [Write I/O (MB)], + CAST(ioWriteMB / SUM(ioWriteMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Write I/O %] +FROM Aggregate_IO_Statistics +ORDER BY [I/O Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most I/O resources on the instance +-- These numbers are cumulative since the last service restart +-- They include all I/O activity, not just the nominal I/O workload + + +-- Get total buffer usage by database for current instance (Query 39) (Total Buffer Usage by Database) +-- This make take some time to run on a busy instance +WITH AggregateBufferPoolUsage +AS +(SELECT DB_NAME(database_id) AS [Database Name], +CAST(COUNT(*) * 8/1024.0 AS DECIMAL (10,2)) AS [CachedSize] +FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) +WHERE database_id <> 32767 -- ResourceDB +GROUP BY DB_NAME(database_id)) +SELECT ROW_NUMBER() OVER(ORDER BY CachedSize DESC) AS [Buffer Pool Rank], [Database Name], CachedSize AS [Cached Size (MB)], + CAST(CachedSize / SUM(CachedSize) OVER() * 100.0 AS DECIMAL(5,2)) AS [Buffer Pool Percent] +FROM AggregateBufferPoolUsage +ORDER BY [Buffer Pool Rank] OPTION (RECOMPILE); +------ + +-- Tells you how much memory (in the buffer pool) +-- is being used by each database on the instance + + +-- Clear Wait Stats with this command +-- DBCC SQLPERF('sys.dm_os_wait_stats', CLEAR); + +-- Isolate top waits for server instance since last restart or wait statistics clear (Query 40) (Top Waits) +WITH [Waits] +AS (SELECT wait_type, wait_time_ms/ 1000.0 AS [WaitS], + (wait_time_ms - signal_wait_time_ms) / 1000.0 AS [ResourceS], + signal_wait_time_ms / 1000.0 AS [SignalS], + waiting_tasks_count AS [WaitCount], + 100.0 * wait_time_ms / SUM (wait_time_ms) OVER() AS [Percentage], + ROW_NUMBER() OVER(ORDER BY wait_time_ms DESC) AS [RowNum] + FROM sys.dm_os_wait_stats WITH (NOLOCK) + WHERE [wait_type] NOT IN ( + N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', + N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', + N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', + N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', + N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', + N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', + N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', + N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', + N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', N'ONDEMAND_TASK_QUEUE', + N'PWAIT_ALL_COMPONENTS_INITIALIZED', + N'PREEMPTIVE_OS_AUTHENTICATIONOPS', N'PREEMPTIVE_OS_CREATEFILE', N'PREEMPTIVE_OS_GENERICOPS', + N'PREEMPTIVE_OS_LIBRARYOPS', N'PREEMPTIVE_OS_QUERYREGISTRY', + N'PREEMPTIVE_HADR_LEASE_MECHANISM', N'PREEMPTIVE_SP_SERVER_DIAGNOSTICS', + N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', + N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'QDS_SHUTDOWN_QUEUE', N'REQUEST_FOR_DEADLOCK_SEARCH', + N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', + N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', + N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', + N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', + N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', + N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', + N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', + N'XE_DISPATCHER_WAIT', N'XE_TIMER_EVENT') + AND waiting_tasks_count > 0) +SELECT + MAX (W1.wait_type) AS [WaitType], + CAST (MAX (W1.Percentage) AS DECIMAL (5,2)) AS [Wait Percentage], + CAST ((MAX (W1.WaitS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgWait_Sec], + CAST ((MAX (W1.ResourceS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgRes_Sec], + CAST ((MAX (W1.SignalS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgSig_Sec], + CAST (MAX (W1.WaitS) AS DECIMAL (16,2)) AS [Wait_Sec], + CAST (MAX (W1.ResourceS) AS DECIMAL (16,2)) AS [Resource_Sec], + CAST (MAX (W1.SignalS) AS DECIMAL (16,2)) AS [Signal_Sec], + MAX (W1.WaitCount) AS [Wait Count], + CAST (N'https://www.sqlskills.com/help/waits/' + W1.wait_type AS XML) AS [Help/Info URL] +FROM Waits AS W1 +INNER JOIN Waits AS W2 +ON W2.RowNum <= W1.RowNum +GROUP BY W1.RowNum, W1.wait_type +HAVING SUM (W2.Percentage) - MAX (W1.Percentage) < 99 -- percentage threshold +OPTION (RECOMPILE); +------ + +-- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure + +-- SQL Server Wait Types Library (Paul Randal) +-- https://bit.ly/2ePzYO2 + +-- The SQL Server Wait Type Repository +-- https://bit.ly/1afzfjC + +-- Wait statistics, or please tell me where it hurts +-- https://bit.ly/2wsQHQE + +-- SQL Server 2005 Performance Tuning using the Waits and Queues +-- https://bit.ly/1o2NFoF + +-- sys.dm_os_wait_stats (Transact-SQL) +-- https://bit.ly/2Hjq9Yl + + + +-- Get a count of SQL connections by IP address (Query 41) (Connection Counts by IP Address) +SELECT ec.client_net_address, es.[program_name], es.[host_name], es.login_name, +COUNT(ec.session_id) AS [connection count] +FROM sys.dm_exec_sessions AS es WITH (NOLOCK) +INNER JOIN sys.dm_exec_connections AS ec WITH (NOLOCK) +ON es.session_id = ec.session_id +GROUP BY ec.client_net_address, es.[program_name], es.[host_name], es.login_name +ORDER BY ec.client_net_address, es.[program_name] OPTION (RECOMPILE); +------ + +-- This helps you figure where your database load is coming from +-- and verifies connectivity from other machines + +-- Solving Connectivity errors to SQL Server +-- https://bit.ly/2EgzoD0 + + + +-- Get Average Task Counts (run multiple times) (Query 42) (Avg Task Counts) +SELECT AVG(current_tasks_count) AS [Avg Task Count], +AVG(work_queue_count) AS [Avg Work Queue Count], +AVG(runnable_tasks_count) AS [Avg Runnable Task Count], +AVG(pending_disk_io_count) AS [Avg Pending DiskIO Count] +FROM sys.dm_os_schedulers WITH (NOLOCK) +WHERE scheduler_id < 255 OPTION (RECOMPILE); +------ + +-- Sustained values above 10 suggest further investigation in that area +-- High Avg Task Counts are often caused by blocking/deadlocking or other resource contention + +-- Sustained values above 1 suggest further investigation in that area +-- High Avg Runnable Task Counts are a good sign of CPU pressure +-- High Avg Pending DiskIO Counts are a sign of disk pressure + +-- How to Do Some Very Basic SQL Server Monitoring +-- https://bit.ly/2q3Btgt + + + +-- Detect blocking (run multiple times) (Query 42) (Detect Blocking) +SELECT t1.resource_type AS [lock type], DB_NAME(resource_database_id) AS [database], +t1.resource_associated_entity_id AS [blk object],t1.request_mode AS [lock req], -- lock requested +t1.request_session_id AS [waiter sid], t2.wait_duration_ms AS [wait time], -- spid of waiter +(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK) -- get sql for waiter +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) +WHERE r.session_id = t1.request_session_id) AS [waiter_batch], +(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, + (CASE WHEN r.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE r.statement_end_offset END - r.statement_start_offset)/2) +FROM sys.dm_exec_requests AS r WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt +WHERE r.session_id = t1.request_session_id) AS [waiter_stmt], -- statement blocked +t2.blocking_session_id AS [blocker sid], -- spid of blocker +(SELECT [text] FROM sys.sysprocesses AS p -- get sql for blocker +CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) +WHERE p.spid = t2.blocking_session_id) AS [blocker_batch] +FROM sys.dm_tran_locks AS t1 WITH (NOLOCK) +INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK) +ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE); +------ + +-- Helps troubleshoot blocking and deadlocking issues +-- The results will change from second to second on a busy system +-- You should run this query multiple times when you see signs of blocking + + + +-- Get CPU Utilization History for last 256 minutes (in one minute intervals) (Query 44) (CPU Utilization History) +DECLARE @ts_now bigint = (SELECT cpu_ticks/(cpu_ticks/ms_ticks) FROM sys.dm_os_sys_info WITH (NOLOCK)); + +SELECT TOP(256) SQLProcessUtilization AS [SQL Server Process CPU Utilization], + SystemIdle AS [System Idle Process], + 100 - SystemIdle - SQLProcessUtilization AS [Other Process CPU Utilization], + DATEADD(ms, -1 * (@ts_now - [timestamp]), GETDATE()) AS [Event Time] +FROM (SELECT record.value('(./Record/@id)[1]', 'int') AS record_id, + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') + AS [SystemIdle], + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', 'int') + AS [SQLProcessUtilization], [timestamp] + FROM (SELECT [timestamp], CONVERT(xml, record) AS [record] + FROM sys.dm_os_ring_buffers WITH (NOLOCK) + WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' + AND record LIKE N'%%') AS x) AS y +ORDER BY record_id DESC OPTION (RECOMPILE); +------ + +-- Look at the trend over the entire period +-- Also look at high sustained 'Other Process' CPU Utilization values +-- Note: This query sometimes gives inaccurate results (negative values) +-- on high core count (> 64 cores) systems + + +-- Get top total worker time queries for entire instance (Query 45) (Top Worker Time Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_worker_time AS [Total Worker Time], qs.min_worker_time AS [Min Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.max_worker_time AS [Max Worker Time], +qs.min_elapsed_time AS [Min Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.max_elapsed_time AS [Max Elapsed Time], +qs.min_logical_reads AS [Min Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.max_logical_reads AS [Max Logical Reads], +qs.execution_count AS [Execution Count], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + + +-- Helps you find the most expensive queries from a CPU perspective across the entire instance +-- Can also help track down parameter sniffing issues + + + +-- Page Life Expectancy (PLE) value for each NUMA node in current instance (Query 46) (PLE by NUMA Node) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], instance_name, cntr_value AS [Page Life Expectancy] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Buffer Node%' -- Handles named instances +AND counter_name = N'Page life expectancy' OPTION (RECOMPILE); +------ + +-- PLE is a good measurement of internal memory pressure +-- Higher PLE is better. Watch the trend over time, not the absolute value +-- This will only return one row for non-NUMA systems + +-- Page Life Expectancy isnt what you think +-- https://bit.ly/2EgynLa + + +-- Memory Grants Pending value for current instance (Query 47) (Memory Grants Pending) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], cntr_value AS [Memory Grants Pending] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Memory Manager%' -- Handles named instances +AND counter_name = N'Memory Grants Pending' OPTION (RECOMPILE); +------ + +-- Run multiple times, and run periodically if you suspect you are under memory pressure +-- Memory Grants Pending above zero for a sustained period is a very strong indicator of internal memory pressure + + +-- Memory Clerk Usage for instance (Query 48) (Memory Clerk Usage) +-- Look for high value for CACHESTORE_SQLCP (Ad-hoc query plans) +SELECT TOP(10) mc.[type] AS [Memory Clerk Type], + CAST((SUM(mc.pages_kb)/1024.0) AS DECIMAL (15,2)) AS [Memory Usage (MB)] +FROM sys.dm_os_memory_clerks AS mc WITH (NOLOCK) +GROUP BY mc.[type] +ORDER BY SUM(mc.pages_kb) DESC OPTION (RECOMPILE); +------ + +-- MEMORYCLERK_SQLBUFFERPOOL was new for SQL Server 2012. It should be your highest consumer of memory + +-- CACHESTORE_SQLCP SQL Plans +-- These are cached SQL statements or batches that aren't in stored procedures, functions and triggers +-- Watch out for high values for CACHESTORE_SQLCP +-- Enabling 'optimize for ad hoc workloads' at the instance level can help reduce this +-- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this + +-- CACHESTORE_OBJCP Object Plans +-- These are compiled plans for stored procedures, functions and triggers + + + +-- Find single-use, ad-hoc and prepared queries that are bloating the plan cache (Query 49) (Ad hoc Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], t.[text] AS [Query Text], +cp.objtype AS [Object Type], cp.cacheobjtype AS [Cache Object Type], +cp.size_in_bytes/1024 AS [Plan Size in KB] +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +WHERE cp.cacheobjtype = N'Compiled Plan' +AND cp.objtype IN (N'Adhoc', N'Prepared') +AND cp.usecounts = 1 +ORDER BY cp.size_in_bytes DESC, DB_NAME(t.[dbid]) OPTION (RECOMPILE); +------ + +-- Gives you the text, type and size of single-use ad-hoc and prepared queries that waste space in the plan cache +-- Enabling 'optimize for ad hoc workloads' for the instance can help (SQL Server 2008 and above only) +-- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this +-- Enabling forced parameterization for the database can help, but test first! + +-- Plan cache, adhoc workloads and clearing the single-use plan cache bloat +-- https://bit.ly/2EfYOkl + + +-- Get top total logical reads queries for entire instance (Query 50) (Top Logical Reads Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_logical_reads AS [Total Logical Reads], +qs.min_logical_reads AS [Min Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.max_logical_reads AS [Max Logical Reads], +qs.min_worker_time AS [Min Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.max_worker_time AS [Max Worker Time], +qs.min_elapsed_time AS [Min Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.max_elapsed_time AS [Max Elapsed Time], +qs.execution_count AS [Execution Count], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + + +-- Helps you find the most expensive queries from a memory perspective across the entire instance +-- Can also help track down parameter sniffing issues + + +-- Get top average elapsed time queries for entire instance (Query 51) (Top Avg Elapsed Time Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.min_elapsed_time, qs.max_elapsed_time, qs.last_elapsed_time, +qs.execution_count AS [Execution Count], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.total_physical_reads/qs.execution_count AS [Avg Physical Reads], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_elapsed_time/qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Helps you find the highest average elapsed time queries across the entire instance +-- Can also help track down parameter sniffing issues + + + + +-- Database specific queries ***************************************************************** + +-- **** Please switch to a user database that you are interested in! ***** +--USE YourDatabaseName; -- make sure to change to an actual database on your instance, not the master system database +--GO + +-- Individual File Sizes and space available for current database (Query 52) (File Sizes and Space) +SELECT f.name AS [File Name] , f.physical_name AS [Physical Name], +CAST((f.size/128.0) AS DECIMAL(15,2)) AS [Total Size in MB], +CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) +AS [Available Space In MB], f.[file_id], fg.name AS [Filegroup Name], +f.is_percent_growth, f.growth, fg.is_default, fg.is_read_only +FROM sys.database_files AS f WITH (NOLOCK) +LEFT OUTER JOIN sys.filegroups AS fg WITH (NOLOCK) +ON f.data_space_id = fg.data_space_id +ORDER BY f.[file_id] OPTION (RECOMPILE); +------ + +-- Look at how large and how full the files are and where they are located +-- Make sure the transaction log is not full!! + + +-- Log space usage for current database (Query 53) (Log Space Usage) +SELECT DB_NAME(lsu.database_id) AS [Database Name], db.recovery_model_desc AS [Recovery Model], + CAST(lsu.total_log_size_in_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Total Log Space (MB)], + CAST(lsu.used_log_space_in_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Used Log Space (MB)], + CAST(lsu.used_log_space_in_percent AS DECIMAL(10, 2)) AS [Used Log Space %], + CAST(lsu.log_space_in_bytes_since_last_backup/1048576.0 AS DECIMAL(10, 2)) AS [Used Log Space Since Last Backup (MB)], + db.log_reuse_wait_desc +FROM sys.dm_db_log_space_usage AS lsu WITH (NOLOCK) +INNER JOIN sys.databases AS db WITH (NOLOCK) +ON lsu.database_id = db.database_id +OPTION (RECOMPILE); +------ + +-- Look at log file size and usage, along with the log reuse wait description for the current database + + +-- I/O Statistics by file for the current database (Query 54) (IO Stats By File) +SELECT DB_NAME(DB_ID()) AS [Database Name], df.name AS [Logical Name], vfs.[file_id], df.type_desc, +df.physical_name AS [Physical Name], CAST(vfs.size_on_disk_bytes/1048576.0 AS DECIMAL(16, 2)) AS [Size on Disk (MB)], +vfs.num_of_reads, vfs.num_of_writes, vfs.io_stall_read_ms, vfs.io_stall_write_ms, +CAST(100. * vfs.io_stall_read_ms/(vfs.io_stall_read_ms + vfs.io_stall_write_ms) AS DECIMAL(16,1)) AS [IO Stall Reads Pct], +CAST(100. * vfs.io_stall_write_ms/(vfs.io_stall_write_ms + vfs.io_stall_read_ms) AS DECIMAL(16,1)) AS [IO Stall Writes Pct], +(vfs.num_of_reads + vfs.num_of_writes) AS [Writes + Reads], +CAST(vfs.num_of_bytes_read/1048576.0 AS DECIMAL(16, 2)) AS [MB Read], +CAST(vfs.num_of_bytes_written/1048576.0 AS DECIMAL(16, 2)) AS [MB Written], +CAST(100. * vfs.num_of_reads/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(16,1)) AS [# Reads Pct], +CAST(100. * vfs.num_of_writes/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(16,1)) AS [# Write Pct], +CAST(100. * vfs.num_of_bytes_read/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(16,1)) AS [Read Bytes Pct], +CAST(100. * vfs.num_of_bytes_written/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(16,1)) AS [Written Bytes Pct] +FROM sys.dm_io_virtual_file_stats(DB_ID(), NULL) AS vfs +INNER JOIN sys.database_files AS df WITH (NOLOCK) +ON vfs.[file_id]= df.[file_id] OPTION (RECOMPILE); +------ + +-- This helps you characterize your workload better from an I/O perspective for this database +-- It helps you determine whether you has an OLTP or DW/DSS type of workload + + + +-- Get most frequently executed queries for this database (Query 55) (Query Execution Counts) +SELECT TOP(50) LEFT(t.[text], 50) AS [Short Query Text], qs.execution_count AS [Execution Count], +qs.total_logical_reads AS [Total Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.total_worker_time AS [Total Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.total_elapsed_time AS [Total Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +WHERE t.dbid = DB_ID() +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + + +-- Queries 54 through 59 are the "Bad Man List" for stored procedures + +-- Top Cached SPs By Execution Count (Query 56) (SP Execution Counts) +SELECT TOP(100) p.name AS [SP Name], qs.execution_count AS [Execution Count], +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Tells you which cached stored procedures are called the most often +-- This helps you characterize and baseline your workload + + +-- Top Cached SPs By Avg Elapsed Time (Query 57) (SP Avg Elapsed Time) +SELECT TOP(25) p.name AS [SP Name], qs.min_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +qs.max_elapsed_time, qs.last_elapsed_time, qs.total_elapsed_time, qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], +qs.total_worker_time AS [TotalWorkerTime], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find high average elapsed time cached stored procedures that +-- may be easy to optimize with standard query tuning techniques + + + +-- Top Cached SPs By Total Worker time. Worker time relates to CPU cost (Query 58) (SP Worker Time) +SELECT TOP(25) p.name AS [SP Name], qs.total_worker_time AS [TotalWorkerTime], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a CPU perspective +-- You should look at this if you see signs of CPU pressure + + +-- Top Cached SPs By Total Logical Reads. Logical reads relate to memory pressure (Query 59) (SP Logical Reads) +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_reads AS [TotalLogicalReads], +qs.total_logical_reads/qs.execution_count AS [AvgLogicalReads],qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a memory perspective +-- You should look at this if you see signs of memory pressure + + +-- Top Cached SPs By Total Physical Reads. Physical reads relate to disk read I/O pressure (Query 60) (SP Physical Reads) +SELECT TOP(25) p.name AS [SP Name],qs.total_physical_reads AS [TotalPhysicalReads], +qs.total_physical_reads/qs.execution_count AS [AvgPhysicalReads], qs.execution_count, +qs.total_logical_reads,qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND qs.total_physical_reads > 0 +ORDER BY qs.total_physical_reads DESC, qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a read I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + + +-- Top Cached SPs By Total Logical Writes (Query 61) (SP Logical Writes) +-- Logical writes relate to both memory and disk I/O pressure +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_writes AS [TotalLogicalWrites], +qs.total_logical_writes/qs.execution_count AS [AvgLogicalWrites], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND qs.total_logical_writes > 0 +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_logical_writes DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a write I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + +-- Lists the top statements by average input/output usage for the current database (Query 62) (Top IO Statements) +SELECT TOP(50) OBJECT_NAME(qt.objectid, dbid) AS [SP Name], +(qs.total_logical_reads + qs.total_logical_writes) /qs.execution_count AS [Avg IO], qs.execution_count AS [Execution Count], +SUBSTRING(qt.[text],qs.statement_start_offset/2, + (CASE + WHEN qs.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE qs.statement_end_offset + END - qs.statement_start_offset)/2) AS [Query Text] +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt +WHERE qt.[dbid] = DB_ID() +ORDER BY [Avg IO] DESC OPTION (RECOMPILE); +------ + +-- Helps you find the most expensive statements for I/O by SP + + + +-- Possible Bad NC Indexes (writes > reads) (Query 63) (Bad NC Indexes) +SELECT OBJECT_NAME(s.[object_id]) AS [Table Name], i.name AS [Index Name], i.index_id, +i.is_disabled, i.is_hypothetical, i.has_filter, i.fill_factor, +s.user_updates AS [Total Writes], s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], +s.user_updates - (s.user_seeks + s.user_scans + s.user_lookups) AS [Difference] +FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON s.[object_id] = i.[object_id] +AND i.index_id = s.index_id +WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 +AND s.database_id = DB_ID() +AND s.user_updates > (s.user_seeks + s.user_scans + s.user_lookups) +AND i.index_id > 1 AND i.[type_desc] = N'NONCLUSTERED' +AND i.is_primary_key = 0 AND i.is_unique_constraint = 0 AND i.is_unique = 0 +ORDER BY [Difference] DESC, [Total Writes] DESC, [Total Reads] ASC OPTION (RECOMPILE); +------ + +-- Look for indexes with high numbers of writes and zero or very low numbers of reads +-- Consider your complete workload, and how long your instance has been running +-- Investigate further before dropping an index! + + +-- Missing Indexes for current database by Index Advantage (Query 64) (Missing Indexes) +SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], +COUNT(1) OVER(PARTITION BY mid.[statement]) AS [missing_indexes_for_table], +COUNT(1) OVER(PARTITION BY mid.[statement], equality_columns) AS [similar_missing_indexes_for_table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, +CONVERT(decimal(18,2), migs.avg_total_user_cost) AS [avg_total_user_cost], migs.avg_user_impact, +OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows] +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON p.[object_id] = mid.[object_id] +WHERE mid.database_id = DB_ID() +AND p.index_id < 2 +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Look at index advantage, last user seek time, number of user seeks to help determine source and importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + + +-- Find missing index warnings for cached plans in the current database (Query 65) (Missing Index Warnings) +-- Note: This query could take some time on a busy instance +SELECT TOP(25) OBJECT_NAME(objectid) AS [ObjectName], + cp.objtype, cp.usecounts, cp.size_in_bytes, query_plan +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp +WHERE CAST(query_plan AS NVARCHAR(MAX)) LIKE N'%MissingIndex%' +AND dbid = DB_ID() +ORDER BY cp.usecounts DESC OPTION (RECOMPILE); +------ + +-- Helps you connect missing indexes to specific stored procedures or queries +-- This can help you decide whether to add them or not + + +-- Breaks down buffers used by current database by object (table, index) in the buffer cache (Query 66) (Buffer Usage) +-- Note: This query could take some time on a busy instance +SELECT OBJECT_NAME(p.[object_id]) AS [Object Name], p.index_id, +CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], +COUNT(*) AS [BufferCount], p.[Rows] AS [Row Count], +p.data_compression_desc AS [Compression Type] +FROM sys.allocation_units AS a WITH (NOLOCK) +INNER JOIN sys.dm_os_buffer_descriptors AS b WITH (NOLOCK) +ON a.allocation_unit_id = b.allocation_unit_id +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON a.container_id = p.hobt_id +WHERE b.database_id = CONVERT(int, DB_ID()) +AND p.[object_id] > 100 +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'plan_%' +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'sys%' +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'xml_index_nodes%' +GROUP BY p.[object_id], p.index_id, p.data_compression_desc, p.[Rows] +ORDER BY [BufferCount] DESC OPTION (RECOMPILE); +------ + +-- Tells you what tables and indexes are using the most memory in the buffer cache +-- It can help identify possible candidates for data compression + + +-- Get Table names, row counts, and compression status for clustered index or heap (Query 67) (Table Sizes) +SELECT SCHEMA_NAME(o.Schema_ID) AS [Schema Name], OBJECT_NAME(p.object_id) AS [ObjectName], +SUM(p.Rows) AS [RowCount], data_compression_desc AS [CompressionType] +FROM sys.partitions AS p WITH (NOLOCK) +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON p.object_id = o.object_id +WHERE index_id < 2 --ignore the partitions from the non-clustered index if any +AND OBJECT_NAME(p.object_id) NOT LIKE N'sys%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'spt_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'queue_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filestream_tombstone%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'fulltext%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'ifts_comp_fragment%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filetable_updates%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'xml_index_nodes%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'sqlagent_job%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'plan_persist%' +GROUP BY SCHEMA_NAME(o.Schema_ID), p.object_id, data_compression_desc +ORDER BY SUM(p.Rows) DESC OPTION (RECOMPILE); +------ + +-- Gives you an idea of table sizes, and possible data compression opportunities + + + +-- Get some key table properties (Query 68) (Table Properties) +SELECT OBJECT_NAME(t.[object_id]) AS [ObjectName], p.[rows] AS [Table Rows], p.index_id, + p.data_compression_desc AS [Index Data Compression], + t.create_date, t.lock_on_bulk_load, t.is_replicated, t.has_replication_filter, + t.is_tracked_by_cdc, t.lock_escalation_desc, t.is_filetable, + t.is_memory_optimized, t.durability_desc -- new for SQL Server 2014 +FROM sys.tables AS t WITH (NOLOCK) +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON t.[object_id] = p.[object_id] +WHERE OBJECT_NAME(t.[object_id]) NOT LIKE N'sys%' +ORDER BY OBJECT_NAME(t.[object_id]), p.index_id OPTION (RECOMPILE); +------ + +-- Gives you some good information about your tables +-- Is Memory optimized and durability description are Hekaton-related properties that were new in SQL Server 2014 + + + +-- When were Statistics last updated on all indexes? (Query 69) (Statistics Update) +SELECT SCHEMA_NAME(o.Schema_ID) + N'.' + o.[NAME] AS [Object Name], o.[type_desc] AS [Object Type], + i.[name] AS [Index Name], STATS_DATE(i.[object_id], i.index_id) AS [Statistics Date], + s.auto_created, s.no_recompute, s.user_created, s.is_incremental, s.is_temporary, + st.row_count, st.used_page_count +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON o.[object_id] = i.[object_id] +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.stats_id +INNER JOIN sys.dm_db_partition_stats AS st WITH (NOLOCK) +ON o.[object_id] = st.[object_id] +AND i.[index_id] = st.[index_id] +WHERE o.[type] IN ('U', 'V') +AND st.row_count > 0 +ORDER BY STATS_DATE(i.[object_id], i.index_id) DESC OPTION (RECOMPILE); +------ + +-- Helps discover possible problems with out-of-date statistics +-- Also gives you an idea which indexes are the most active + +-- sys.stats (Transact-SQL) +-- https://bit.ly/2GyAxrn + +-- UPDATEs to Statistics (Erin Stellato) +-- https://bit.ly/2vhrYQy + + + +-- Look at most frequently modified indexes and statistics (Query 70) (Volatile Indexes) +SELECT o.[name] AS [Object Name], o.[object_id], o.[type_desc], s.[name] AS [Statistics Name], + s.stats_id, s.no_recompute, s.auto_created, s.is_incremental, s.is_temporary, + sp.modification_counter, sp.[rows], sp.rows_sampled, sp.last_updated +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON s.object_id = o.object_id +CROSS APPLY sys.dm_db_stats_properties(s.object_id, s.stats_id) AS sp +WHERE o.[type_desc] NOT IN (N'SYSTEM_TABLE', N'INTERNAL_TABLE') +AND sp.modification_counter > 0 +ORDER BY sp.modification_counter DESC, o.name OPTION (RECOMPILE); +------ + +-- This helps you understand your workload and make better decisions about +-- things like data compression and adding new indexes to a table + + + +-- Get fragmentation info for all indexes above a certain size in the current database (Query 71) (Index Fragmentation) +-- Note: This query could take some time on a very large database +SELECT DB_NAME(ps.database_id) AS [Database Name], SCHEMA_NAME(o.[schema_id]) AS [Schema Name], +OBJECT_NAME(ps.OBJECT_ID) AS [Object Name], i.[name] AS [Index Name], ps.index_id, +ps.index_type_desc, ps.avg_fragmentation_in_percent, +ps.fragment_count, ps.page_count, i.fill_factor, i.has_filter, +i.filter_definition, i.[allow_page_locks] +FROM sys.dm_db_index_physical_stats(DB_ID(),NULL, NULL, NULL , N'LIMITED') AS ps +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ps.[object_id] = i.[object_id] +AND ps.index_id = i.index_id +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON i.[object_id] = o.[object_id] +WHERE ps.database_id = DB_ID() +AND ps.page_count > 2500 +ORDER BY ps.avg_fragmentation_in_percent DESC OPTION (RECOMPILE); +------ + +-- Helps determine whether you have framentation in your relational indexes +-- and how effective your index maintenance strategy is + + +--- Index Read/Write stats (all tables in current DB) ordered by Reads (Query 72) (Overall Index Usage - Reads) +SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.[name] AS [IndexName], i.index_id, + s.user_seeks, s.user_scans, s.user_lookups, + s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], + s.user_updates AS [Writes], + i.[type_desc] AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, + s.last_user_scan, s.last_user_lookup, s.last_user_seek +FROM sys.indexes AS i WITH (NOLOCK) +LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 +ORDER BY s.user_seeks + s.user_scans + s.user_lookups DESC OPTION (RECOMPILE); -- Order by reads +------ + +-- Show which indexes in the current database are most active for Reads + + +--- Index Read/Write stats (all tables in current DB) ordered by Writes (Query 73) (Overall Index Usage - Writes) +SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.[name] AS [IndexName], i.index_id, + s.user_updates AS [Writes], s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], + i.[type_desc] AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, + s.last_system_update, s.last_user_update +FROM sys.indexes AS i WITH (NOLOCK) +LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 +ORDER BY s.user_updates DESC OPTION (RECOMPILE); -- Order by writes +------ + +-- Show which indexes in the current database are most active for Writes + + +-- Get in-memory OLTP index usage (Query 74) (XTP Index Usage) +SELECT OBJECT_NAME(i.[object_id]) AS [Object Name], i.index_id, i.[name] AS [Index Name], + i.[type_desc], xis.scans_started, xis.scans_retries, + xis.rows_touched, xis.rows_returned +FROM sys.dm_db_xtp_index_stats AS xis WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON i.[object_id] = xis.[object_id] +AND i.index_id = xis.index_id +ORDER BY OBJECT_NAME(i.[object_id]) OPTION (RECOMPILE); +------ + +-- This gives you some index usage statistics for in-memory OLTP +-- Returns no data if you are not using in-memory OLTP + +-- Guidelines for Using Indexes on Memory-Optimized Tables +-- https://bit.ly/2GCP8lF + + +-- Get lock waits for current database (Query 75) (Lock Waits) +SELECT o.name AS [table_name], i.name AS [index_name], ios.index_id, ios.partition_number, + SUM(ios.row_lock_wait_count) AS [total_row_lock_waits], + SUM(ios.row_lock_wait_in_ms) AS [total_row_lock_wait_in_ms], + SUM(ios.page_lock_wait_count) AS [total_page_lock_waits], + SUM(ios.page_lock_wait_in_ms) AS [total_page_lock_wait_in_ms], + SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) AS [total_lock_wait_in_ms] +FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) AS ios +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON ios.[object_id] = o.[object_id] +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ios.[object_id] = i.[object_id] +AND ios.index_id = i.index_id +WHERE o.[object_id] > 100 +GROUP BY o.name, i.name, ios.index_id, ios.partition_number +HAVING SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) > 0 +ORDER BY total_lock_wait_in_ms DESC OPTION (RECOMPILE); +------ + +-- This query is helpful for troubleshooting blocking and deadlocking issues + + +-- Get input buffer information for the current database (Query 76) (Input Buffer) +SELECT es.session_id, DB_NAME(es.database_id) AS [Database Name], +es.login_time, es.cpu_time, es.logical_reads, +es.[status], ib.event_info AS [Input Buffer] +FROM sys.dm_exec_sessions AS es WITH (NOLOCK) +CROSS APPLY sys.dm_exec_input_buffer(es.session_id, NULL) AS ib +WHERE es.database_id = DB_ID() +AND es.session_id > 50 +AND es.session_id <> @@SPID OPTION (RECOMPILE); + +-- Gives you input buffer information from all non-system sessions for the current database +-- Replaces DBCC INPUTBUFFER +-- Requires SQL Server 2014 SP2 or later + +-- New DMF for retrieving input buffer in SQL Server +-- https://bit.ly/2uHKMbz + + +-- Look at recent Full backups for the current database (Query 77) (Recent Full Backups) +SELECT TOP (30) bs.machine_name, bs.server_name, bs.database_name AS [Database Name], bs.recovery_model, +CONVERT (BIGINT, bs.backup_size / 1048576 ) AS [Uncompressed Backup Size (MB)], +CONVERT (BIGINT, bs.compressed_backup_size / 1048576 ) AS [Compressed Backup Size (MB)], +CONVERT (NUMERIC (20,2), (CONVERT (FLOAT, bs.backup_size) / +CONVERT (FLOAT, bs.compressed_backup_size))) AS [Compression Ratio], bs.has_backup_checksums, bs.is_copy_only, bs.encryptor_type, +DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) AS [Backup Elapsed Time (sec)], +bs.backup_finish_date AS [Backup Finish Date], bmf.physical_device_name AS [Backup Location], bmf.physical_block_size +FROM msdb.dbo.backupset AS bs WITH (NOLOCK) +INNER JOIN msdb.dbo.backupmediafamily AS bmf WITH (NOLOCK) +ON bs.media_set_id = bmf.media_set_id +WHERE bs.database_name = DB_NAME(DB_ID()) +AND bs.[type] = 'D' -- Change to L if you want Log backups +ORDER BY bs.backup_finish_date DESC OPTION (RECOMPILE); +------ + +-- Are your backup sizes and times changing over time? +-- Are you using backup compression? +-- Are you using backup checksums? +-- Are you doing copy_only backups? +-- Are you doing encrypted backups? +-- Have you done any backup tuning with striped backups, or changing the parameters of the backup command? + + +-- These five Pluralsight Courses go into more detail about how to run these queries and interpret the results + +-- SQL Server 2017: Diagnosing Performance Issues with DMVs +-- https://bit.ly/2FqCeti + +-- SQL Server 2017: Diagnosing Configuration Issues with DMVs +-- https://bit.ly/2MSUDUL + +-- SQL Server 2014 DMV Diagnostic Queries Part 1 +-- https://bit.ly/2plxCer + +-- SQL Server 2014 DMV Diagnostic Queries Part 2 +-- https://bit.ly/2IuJpzI + +-- SQL Server 2014 DMV Diagnostic Queries Part 3 +-- https://bit.ly/2FIlCPb + + + +-- Sign up for Microsoft Visual Studio Dev Essentials and get a free three month pass to Pluralsight + +-- Microsoft Visual Studio Dev Essentials +-- http://bit.ly/1q6xbDL + + +-- Sign up for Microsoft Azure Essentials and get lots of free Azure usage credits, MCP exam voucher, three month Pluralsight subscription + +-- Microsoft Azure Essentials +-- https://bit.ly/2JMWe8x + + +-- August 2017 blog series about upgrading and migrating to SQL Server 2016/2017 +-- https://bit.ly/2ftKVrX diff --git a/Scripts/SQL Server 2016 Diagnostic Information Queries.sql b/Scripts/SQL Server 2016 Diagnostic Information Queries.sql index 8be95232..a1959cc0 100644 --- a/Scripts/SQL Server 2016 Diagnostic Information Queries.sql +++ b/Scripts/SQL Server 2016 Diagnostic Information Queries.sql @@ -1,1501 +1,2040 @@ - --- SQL Server 2016 Diagnostic Information Queries --- Glenn Berry --- May 2016 --- Last Modified: May 23, 2016 --- http://sqlserverperformance.wordpress.com/ --- http://sqlskills.com/blogs/glenn/ --- Twitter: GlennAlanBerry - --- Please listen to my Pluralsight courses --- http://www.pluralsight.com/author/glenn-berry - --- Please make sure you are using the correct version of these diagnostic queries for your version of SQL Server - - ---****************************************************************************** ---* Copyright (C) 2016 Glenn Berry, SQLskills.com ---* All rights reserved. ---* ---* For more scripts and sample code, check out ---* http://sqlskills.com/blogs/glenn ---* ---* You may alter this code for your own *non-commercial* purposes. You may ---* republish altered code as long as you include this copyright and give due credit. ---* ---* ---* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ---* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED ---* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A ---* PARTICULAR PURPOSE. ---* ---****************************************************************************** - --- Check the major product version to see if it is SQL Server 2016 CTP 2 or greater -IF NOT EXISTS (SELECT * WHERE CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')) LIKE '13%') - BEGIN - DECLARE @ProductVersion varchar(128) = CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')); - RAISERROR ('Script does not match the ProductVersion [%s] of this instance. Many of these queries may not work on this version.' , 18 , 16 , @ProductVersion); - END - ELSE - PRINT N'You have the correct major version of SQL Server for this diagnostic information script'; - - --- Instance level queries ******************************* - --- SQL and OS Version information for current instance (Query 1) (Version Info) -SELECT @@SERVERNAME AS [Server Name], @@VERSION AS [SQL Server and OS Version Info]; - --- SQL Server 2016 RTM Branch Builds --- Build Description Release Date --- 13.0.200.172 CTP 2.0 5/26/2015 --- 13.0.300.44 CTP 2.1 6/14/2015 --- 13.0.407.1 CTP 2.2 7/28/2015 --- 13.0.500.53 CTP 2.3 9/4/2015 --- 13.0.600.65 CTP 2.4 9/30/2015 --- 13.0.700.242 CTP 3.0 10/29/2015 --- 13.0.900.73 CTP 3.2 12/12/2015 --- 13.0.1000.276 CTP 3.3 1/27/2016 --- 13.0.1100.288 RC0 3/2/2016 --- 13.0.1200.242 RC1 3/18/2016 --- 13.0.1300.275 RC2 3/28/2016 --- 13.0.1400.361 RC3 4/11/2016 - - --- How to determine the version, edition and update level of SQL Server and its components --- https://support.microsoft.com/en-us/kb/321185 - --- Recommended updates and configuration options for SQL Server 2012 and SQL Server 2014 used with high-performance workloads --- http://support.microsoft.com/kb/2964518/EN-US - - --- Get socket, physical core and logical core count from the SQL Server Error log. (Query 2) (Core Counts) --- This query might take a few seconds if you have not recycled your error log recently -EXEC sys.xp_readerrorlog 0, 1, N'detected', N'socket'; - --- This can help you determine the exact core counts used by SQL Server and whether HT is enabled or not --- It can also help you confirm your SQL Server licensing model --- Be on the lookout for this message "using 20 logical processors based on SQL Server licensing" --- which means grandfathered Server/CAL licensing --- This query will return no results if your error log has been recycled since the instance was last started - - - --- Get selected server properties (Query 3) (Server Properties) -SELECT SERVERPROPERTY('MachineName') AS [MachineName], -SERVERPROPERTY('ServerName') AS [ServerName], -SERVERPROPERTY('InstanceName') AS [Instance], -SERVERPROPERTY('IsClustered') AS [IsClustered], -SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS [ComputerNamePhysicalNetBIOS], -SERVERPROPERTY('Edition') AS [Edition], -SERVERPROPERTY('ProductLevel') AS [ProductLevel], -- What servicing branch (RTM/SP/CU) -SERVERPROPERTY('ProductUpdateLevel') AS [ProductUpdateLevel], -- Within a servicing branch, what CU# is applied -SERVERPROPERTY('ProductVersion') AS [ProductVersion], -SERVERPROPERTY('ProductMajorVersion') AS [ProductMajorVersion], -SERVERPROPERTY('ProductMinorVersion') AS [ProductMinorVersion], -SERVERPROPERTY('ProductBuild') AS [ProductBuild], -SERVERPROPERTY('ProductBuildType') AS [ProductBuildType], -- Is this a GDR or OD hotfix (NULL if on a CU build) -SERVERPROPERTY('ProductUpdateReference') AS [ProductUpdateReference], -- KB article number that is applicable for this build -SERVERPROPERTY('ProcessID') AS [ProcessID], -SERVERPROPERTY('Collation') AS [Collation], -SERVERPROPERTY('IsFullTextInstalled') AS [IsFullTextInstalled], -SERVERPROPERTY('IsIntegratedSecurityOnly') AS [IsIntegratedSecurityOnly], -SERVERPROPERTY('FilestreamConfiguredLevel') AS [FilestreamConfiguredLevel], -SERVERPROPERTY('IsHadrEnabled') AS [IsHadrEnabled], -SERVERPROPERTY('HadrManagerStatus') AS [HadrManagerStatus], -SERVERPROPERTY('IsXTPSupported') AS [IsXTPSupported], -SERVERPROPERTY('InstanceDefaultDataPath') AS [InstanceDefaultDataPath], -SERVERPROPERTY('InstanceDefaultLogPath') AS [InstanceDefaultLogPath], -SERVERPROPERTY('IsPolybaseInstalled') AS [IsPolybaseInstalled], -- New for SQL Server 2016 -SERVERPROPERTY('IsAdvancedAnalyticsInstalled') AS [IsRServicesInstalled], -- New for SQL Server 2016 -SERVERPROPERTY('BuildClrVersion') AS [Build CLR Version]; - --- This gives you a lot of useful information about your instance of SQL Server, --- such as the ProcessID for SQL Server and your collation --- Note: Some columns will be NULL on older SQL Server builds - - - --- Get instance-level configuration values for instance (Query 4) (Configuration Values) -SELECT name, value, value_in_use, minimum, maximum, [description], is_dynamic, is_advanced -FROM sys.configurations WITH (NOLOCK) -ORDER BY name OPTION (RECOMPILE); - --- Focus on these settings: --- automatic soft-NUMA disabled (should be 0 in most cases) --- backup checksum default (should be 1) --- backup compression default (should be 1 in most cases) --- clr enabled (only enable if it is needed) --- cost threshold for parallelism (depends on your workload) --- lightweight pooling (should be zero) --- max degree of parallelism (depends on your workload and hardware) --- max server memory (MB) (set to an appropriate value, not the default) --- optimize for ad hoc workloads (should be 1) --- priority boost (should be zero) --- remote admin connections (should be 1) - --- New configuration options for SQL Server 2016 --- allow polybase export (Allow INSERT into a Hadoop external table) --- automatic soft-NUMA disabled (Automatic soft-NUMA is enabled by default) --- external scripts enabled (Allows execution of external scripts, for R Services) --- hadoop connectivity (Configure SQL Server to connect to external Hadoop or Microsoft Azure storage blob data sources through PolyBase) --- polybase network encryption (Configure SQL Server to encrypt control and data channels when using PolyBase) --- remote data archive (Allow the use of the REMOTE_DATA_ARCHIVE data access for Stretch databases) - - - --- Returns a list of all global trace flags that are enabled (Query 5) (Global Trace Flags) -DBCC TRACESTATUS (-1); - --- If no global trace flags are enabled, no results will be returned. --- It is very useful to know what global trace flags are currently enabled as part of the diagnostic process. - --- Common trace flags that should be enabled in most cases --- TF 3226 - Supresses logging of successful database backup messages to the SQL Server Error Log - --- The behavior of TF 1117, 1118 are enabled for tempdb in SQL Server 2016 by default --- The behavior of TF 2371 is enabled by default in SQL Server 2016 - - --- SQL Server query optimizer hotfix trace flag 4199 servicing model --- https://support.microsoft.com/en-us/kb/974006 - - - --- Returns status of instant file initialization (Query 6) (IFI Status) -EXEC sys.xp_readerrorlog 0, 1, N'Database Instant File Initialization'; - - - --- SQL Server Process Address space info (Query 7) (Process Memory) --- (shows whether locked pages is enabled, among other things) -SELECT physical_memory_in_use_kb/1024 AS [SQL Server Memory Usage (MB)], - large_page_allocations_kb, locked_page_allocations_kb, page_fault_count, - memory_utilization_percentage, available_commit_limit_kb, - process_physical_memory_low, process_virtual_memory_low -FROM sys.dm_os_process_memory WITH (NOLOCK) OPTION (RECOMPILE); - --- You want to see 0 for process_physical_memory_low --- You want to see 0 for process_virtual_memory_low --- This indicates that you are not under internal memory pressure - - - --- SQL Server Services information (Query 8) (SQL Server Services Info) -SELECT servicename, process_id, startup_type_desc, status_desc, -last_startup_time, service_account, is_clustered, cluster_nodename, [filename] -FROM sys.dm_server_services WITH (NOLOCK) OPTION (RECOMPILE); - --- Tells you the account being used for the SQL Server Service and the SQL Agent Service --- Shows the process_id, when they were last started, and their current status --- Shows whether you are running on a failover cluster instance - - --- Get SQL Server Agent jobs and Category information (Query 9) (SQL Server Agent Jobs) -SELECT sj.name AS [JobName], sj.[description] AS [JobDescription], SUSER_SNAME(sj.owner_sid) AS [JobOwner], -sj.date_created, sj.[enabled], sj.notify_email_operator_id, sj.notify_level_email, sc.name AS [CategoryName], -js.next_run_date, js.next_run_time -FROM msdb.dbo.sysjobs AS sj WITH (NOLOCK) -INNER JOIN msdb.dbo.syscategories AS sc WITH (NOLOCK) -ON sj.category_id = sc.category_id -LEFT OUTER JOIN msdb.dbo.sysjobschedules AS js WITH (NOLOCK) -ON sj.job_id = js.job_id -ORDER BY sj.name OPTION (RECOMPILE); - --- Gives you some basic information about your SQL Server Agent jobs, who owns them and how they are configured --- Look for Agent jobs that are not owned by sa --- Look for jobs that have a notify_email_operator_id set to 0 (meaning no operator) --- Look for jobs that have a notify_level_email set to 0 (meaning no e-mail is ever sent) --- --- MSDN sysjobs documentation --- http://msdn.microsoft.com/en-us/library/ms189817.aspx - - --- Get SQL Server Agent Alert Information (Query 10) (SQL Server Agent Alerts) -SELECT name, event_source, message_id, severity, [enabled], has_notification, - delay_between_responses, occurrence_count, last_occurrence_date, last_occurrence_time -FROM msdb.dbo.sysalerts WITH (NOLOCK) -ORDER BY name OPTION (RECOMPILE); - --- Gives you some basic information about your SQL Server Agent Alerts (which are different from SQL Server Agent jobs) --- Read more about Agent Alerts here: http://www.sqlskills.com/blogs/glenn/creating-sql-server-agent-alerts-for-critical-errors/ - - - --- Windows information (Query 11) (Windows Info) -SELECT windows_release, windows_service_pack_level, - windows_sku, os_language_version -FROM sys.dm_os_windows_info WITH (NOLOCK) OPTION (RECOMPILE); - --- Gives you major OS version, Service Pack, Edition, and language info for the operating system --- 6.3 is either Windows 8.1, Windows 10 or Windows Server 2012 R2, Windows Server 2016 --- 6.2 is either Windows 8 or Windows Server 2012 --- 6.1 is either Windows 7 or Windows Server 2008 R2 --- 6.0 is either Windows Vista or Windows Server 2008 - --- Windows SKU codes --- 4 is Enterprise Edition --- 7 is Standard Server Edition --- 8 is Datacenter Server Edition --- 10 is Enterprise Server Edition --- 48 is Professional Edition - --- 1033 for os_language_version is US-English - --- SQL Server 2014 requires Windows Server 2012 or newer - --- Quick-Start Installation of SQL Server 2016 --- https://msdn.microsoft.com/en-us/library/bb500433(v=sql.130).aspx - --- Hardware and Software Requirements for Installing SQL Server 2016 --- https://msdn.microsoft.com/en-us/library/ms143506(v=sql.130).aspx - --- Using SQL Server in Windows 8, Windows 8.1, Windows Server 2012 and Windows Server 2012 R2 environments --- http://support.microsoft.com/kb/2681562 - - - --- SQL Server NUMA Node information (Query 12) (SQL Server NUMA Info) -SELECT node_id, node_state_desc, memory_node_id, processor_group, online_scheduler_count, - active_worker_count, avg_load_balance, resource_monitor_state -FROM sys.dm_os_nodes WITH (NOLOCK) -WHERE node_state_desc <> N'ONLINE DAC' OPTION (RECOMPILE); - --- Gives you some useful information about the composition and relative load on your NUMA nodes --- You want to see an equal number of schedulers on each NUMA node --- Watch out if SQL Server 2016 Standard Edition has been installed on a machine with more than 16 physical cores - --- Balancing Your Available SQL Server Core Licenses Evenly Across NUMA Nodes --- http://www.sqlskills.com/blogs/glenn/balancing-your-available-sql-server-core-licenses-evenly-across-numa-nodes/ - - - --- Good basic information about OS memory amounts and state (Query 13) (System Memory) -SELECT total_physical_memory_kb/1024 AS [Physical Memory (MB)], - available_physical_memory_kb/1024 AS [Available Memory (MB)], - total_page_file_kb/1024 AS [Total Page File (MB)], - available_page_file_kb/1024 AS [Available Page File (MB)], - system_cache_kb/1024 AS [System Cache (MB)], - system_memory_state_desc AS [System Memory State] -FROM sys.dm_os_sys_memory WITH (NOLOCK) OPTION (RECOMPILE); - --- You want to see "Available physical memory is high" for System Memory State --- This indicates that you are not under external memory pressure - - --- You can skip the next three queries if you know you don't --- have a clustered instance - - --- Shows you where the SQL Server failover cluster diagnostic log is located and how it is configured (Query 14) (SQL Server Error Log) -SELECT is_enabled, [path], max_size, max_files -FROM sys.dm_os_server_diagnostics_log_configurations WITH (NOLOCK) OPTION (RECOMPILE); - --- Knowing this information is important for troubleshooting purposes --- Also shows you the location of other error and diagnostic log files - - --- Get information about your cluster nodes and their status (Query 15) (Cluster Node Properties) --- (if your database server is in a failover cluster) -SELECT NodeName, status_description, is_current_owner -FROM sys.dm_os_cluster_nodes WITH (NOLOCK) OPTION (RECOMPILE); - --- Knowing which node owns the cluster resources is critical --- Especially when you are installing Windows or SQL Server updates --- You will see no results if your instance is not clustered - - --- Get information about any AlwaysOn AG cluster this instance is a part of (Query 16) (AlwaysOn AG Cluster) -SELECT cluster_name, quorum_type_desc, quorum_state_desc -FROM sys.dm_hadr_cluster WITH (NOLOCK) OPTION (RECOMPILE); - --- You will see no results if your instance is not using AlwaysOn AGs - --- Recommended hotfixes and updates for Windows Server 2012 R2-based failover clusters --- http://support.microsoft.com/kb/2920151 - - --- Hardware information from SQL Server 2016 (Query 17) (Hardware Info) -SELECT cpu_count AS [Logical CPU Count], scheduler_count, hyperthread_ratio AS [Hyperthread Ratio], -cpu_count/hyperthread_ratio AS [Physical CPU Count], -physical_memory_kb/1024 AS [Physical Memory (MB)], committed_kb/1024 AS [Committed Memory (MB)], -committed_target_kb/1024 AS [Committed Target Memory (MB)], -max_workers_count AS [Max Workers Count], affinity_type_desc AS [Affinity Type], -sqlserver_start_time AS [SQL Server Start Time], virtual_machine_type_desc AS [Virtual Machine Type], -softnuma_configuration_desc AS [Soft NUMA Configuration] -FROM sys.dm_os_sys_info WITH (NOLOCK) OPTION (RECOMPILE); - --- Gives you some good basic hardware information about your database server --- Cannot distinguish between HT and multi-core --- Note: virtual_machine_type_desc of HYPERVISOR does not automatically mean you are running SQL Server inside of a VM --- It merely indicates that you have a hypervisor running on your host --- Soft NUMA configuration is a new column for SQL Server 2016 - --- Configure SQL Server to Use Soft-NUMA (SQL Server) --- https://msdn.microsoft.com/en-us/library/ms345357(v=sql.130).aspx - - --- Get System Manufacturer and model number from SQL Server Error log (Query 18) (System Manufacturer) -EXEC sys.xp_readerrorlog 0, 1, N'Manufacturer'; - --- This can help you determine the capabilities and capacities of your database server --- Can also be used to confirm if you are running in a VM --- This query might take a few seconds if you have not recycled your error log recently --- This query will return no results if your error log has been recycled since the instance was started - - --- Get processor description from Windows Registry (Query 19) (Processor Description) -EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\CentralProcessor\0', N'ProcessorNameString'; - --- Gives you the model number and rated clock speed of your processor(s) --- Your processors may be running at less than the rated clock speed due --- to the Windows Power Plan or hardware power management - --- You can use CPU-Z to get your actual CPU core speed and a lot of other useful information --- http://www.cpuid.com/softwares/cpu-z.html - --- You can learn more about processor selection for SQL Server by following this link --- http://www.sqlskills.com/blogs/glenn/processor-selection-for-sql-server/ - - - --- See if buffer pool extensions (BPE) is enabled (Query 20) (BPE Configuration) -SELECT [path], state_description, current_size_in_kb, -CAST(current_size_in_kb/1048576.0 AS DECIMAL(10,2)) AS [Size (GB)] -FROM sys.dm_os_buffer_pool_extension_configuration WITH (NOLOCK) OPTION (RECOMPILE); - --- BPE is available in both Standard Edition and Enterprise Edition --- It is a more interesting feature for Standard Edition - --- Buffer Pool Extension to SSDs in SQL Server 2014 --- http://blogs.technet.com/b/dataplatforminsider/archive/2013/07/25/buffer-pool-extension-to-ssds-in-sql-server-2014.aspx - - - --- Look at buffer descriptors to see BPE usage by database (Query 21) (BPE Usage) -SELECT DB_NAME(database_id) AS [Database Name], COUNT(page_id) AS [Page Count], -CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], -AVG(read_microsec) AS [Avg Read Time (microseconds)] -FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) -WHERE database_id <> 32767 -AND is_in_bpool_extension = 1 -GROUP BY DB_NAME(database_id) -ORDER BY [Buffer size(MB)] DESC OPTION (RECOMPILE); - --- You will see no results if BPE is not enabled or if there is no BPE usage - - --- Get information on location, time and size of any memory dumps from SQL Server (Query 22) (Memory Dump Info) -SELECT [filename], creation_time, size_in_bytes/1048576.0 AS [Size (MB)] -FROM sys.dm_server_memory_dumps WITH (NOLOCK) -ORDER BY creation_time DESC OPTION (RECOMPILE); - --- This will not return any rows if you have --- not had any memory dumps (which is a good thing) - - - --- File names and paths for all user and system databases on instance (Query 23) (Database Filenames and Paths) -SELECT DB_NAME([database_id]) AS [Database Name], - [file_id], name, physical_name, [type_desc], state_desc, - is_percent_growth, growth, - CONVERT(bigint, growth/128.0) AS [Growth in MB], - CONVERT(bigint, size/128.0) AS [Total Size in MB] -FROM sys.master_files WITH (NOLOCK) -ORDER BY DB_NAME([database_id]) OPTION (RECOMPILE); - --- Things to look at: --- Are data files and log files on different drives? --- Is everything on the C: drive? --- Is TempDB on dedicated drives? --- Is there only one TempDB data file? --- Are all of the TempDB data files the same size? --- Are there multiple data files for user databases? --- Is percent growth enabled for any files (which is bad)? - - --- Volume info for all LUNS that have database files on the current instance (Query 24) (Volume Info) -SELECT DISTINCT vs.volume_mount_point, vs.file_system_type, -vs.logical_volume_name, CONVERT(DECIMAL(18,2),vs.total_bytes/1073741824.0) AS [Total Size (GB)], -CONVERT(DECIMAL(18,2), vs.available_bytes/1073741824.0) AS [Available Size (GB)], -CONVERT(DECIMAL(18,2), vs.available_bytes * 1. / vs.total_bytes * 100.) AS [Space Free %] -FROM sys.master_files AS f WITH (NOLOCK) -CROSS APPLY sys.dm_os_volume_stats(f.database_id, f.[file_id]) AS vs -ORDER BY vs.volume_mount_point OPTION (RECOMPILE); - --- Shows you the total and free space on the LUNs where you have database files --- Being low on free space can negatively affect performance - - - --- Drive level latency information (Query 25) (Drive Level Latency) --- Based on code from Jimmy May -SELECT tab.[Drive], tab.volume_mount_point AS [Volume Mount Point], - CASE - WHEN num_of_reads = 0 THEN 0 - ELSE (io_stall_read_ms/num_of_reads) - END AS [Read Latency], - CASE - WHEN num_of_writes = 0 THEN 0 - ELSE (io_stall_write_ms/num_of_writes) - END AS [Write Latency], - CASE - WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 - ELSE (io_stall/(num_of_reads + num_of_writes)) - END AS [Overall Latency], - CASE - WHEN num_of_reads = 0 THEN 0 - ELSE (num_of_bytes_read/num_of_reads) - END AS [Avg Bytes/Read], - CASE - WHEN num_of_writes = 0 THEN 0 - ELSE (num_of_bytes_written/num_of_writes) - END AS [Avg Bytes/Write], - CASE - WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 - ELSE ((num_of_bytes_read + num_of_bytes_written)/(num_of_reads + num_of_writes)) - END AS [Avg Bytes/Transfer] -FROM (SELECT LEFT(UPPER(mf.physical_name), 2) AS Drive, SUM(num_of_reads) AS num_of_reads, - SUM(io_stall_read_ms) AS io_stall_read_ms, SUM(num_of_writes) AS num_of_writes, - SUM(io_stall_write_ms) AS io_stall_write_ms, SUM(num_of_bytes_read) AS num_of_bytes_read, - SUM(num_of_bytes_written) AS num_of_bytes_written, SUM(io_stall) AS io_stall, vs.volume_mount_point - FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS vfs - INNER JOIN sys.master_files AS mf WITH (NOLOCK) - ON vfs.database_id = mf.database_id AND vfs.file_id = mf.file_id - CROSS APPLY sys.dm_os_volume_stats(mf.database_id, mf.[file_id]) AS vs - GROUP BY LEFT(UPPER(mf.physical_name), 2), vs.volume_mount_point) AS tab -ORDER BY [Overall Latency] OPTION (RECOMPILE); - --- Shows you the drive-level latency for reads and writes, in milliseconds --- Latency above 30-40ms is usually a problem --- These latency numbers include all file activity against all SQL Server --- database file on each drive since SQL Server was last started - - --- Calculates average stalls per read, per write, and per total input/output for each database file (Query 26) (IO Stalls by File) -SELECT DB_NAME(fs.database_id) AS [Database Name], CAST(fs.io_stall_read_ms/(1.0 + fs.num_of_reads) AS NUMERIC(10,1)) AS [avg_read_stall_ms], -CAST(fs.io_stall_write_ms/(1.0 + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_write_stall_ms], -CAST((fs.io_stall_read_ms + fs.io_stall_write_ms)/(1.0 + fs.num_of_reads + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_io_stall_ms], -CONVERT(DECIMAL(18,2), mf.size/128.0) AS [File Size (MB)], mf.physical_name, mf.type_desc, fs.io_stall_read_ms, fs.num_of_reads, -fs.io_stall_write_ms, fs.num_of_writes, fs.io_stall_read_ms + fs.io_stall_write_ms AS [io_stalls], fs.num_of_reads + fs.num_of_writes AS [total_io], -io_stall_queued_read_ms AS [Resource Governor Total Read IO Latency (ms)], io_stall_queued_write_ms AS [Resource Governor Total Write IO Latency (ms)] -FROM sys.dm_io_virtual_file_stats(null,null) AS fs -INNER JOIN sys.master_files AS mf WITH (NOLOCK) -ON fs.database_id = mf.database_id -AND fs.[file_id] = mf.[file_id] -ORDER BY avg_io_stall_ms DESC OPTION (RECOMPILE); - --- Helps determine which database files on the entire instance have the most I/O bottlenecks --- This can help you decide whether certain LUNs are overloaded and whether you might --- want to move some files to a different location or perhaps improve your I/O performance --- These latency numbers include all file activity against each SQL Server --- database file since SQL Server was last started - - --- Look for I/O requests taking longer than 15 seconds in the five most recent SQL Server Error Logs (Query 27) (IO Warnings) -CREATE TABLE #IOWarningResults(LogDate datetime, ProcessInfo sysname, LogText nvarchar(1000)); - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 0, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 1, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 2, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 3, 1, N'taking longer than 15 seconds'; - - INSERT INTO #IOWarningResults - EXEC xp_readerrorlog 4, 1, N'taking longer than 15 seconds'; - -SELECT LogDate, ProcessInfo, LogText -FROM #IOWarningResults -ORDER BY LogDate DESC; - -DROP TABLE #IOWarningResults; - --- Finding 15 second I/O warnings in the SQL Server Error Log is useful evidence of --- poor I/O performance (which might have many different causes) --- Look to see if you see any patterns in the results (same files, same drives, same time of day, etc.) - --- Diagnostics in SQL Server help detect stalled and stuck I/O operations --- https://support.microsoft.com/en-us/kb/897284 - - - --- Recovery model, log reuse wait description, log file size, log usage size (Query 28) (Database Properties) --- and compatibility level for all databases on instance -SELECT db.[name] AS [Database Name], db.recovery_model_desc AS [Recovery Model], db.state_desc, db.containment_desc, -db.log_reuse_wait_desc AS [Log Reuse Wait Description], -CONVERT(DECIMAL(18,2), ls.cntr_value/1024.0) AS [Log Size (MB)], CONVERT(DECIMAL(18,2), lu.cntr_value/1024.0) AS [Log Used (MB)], -CAST(CAST(lu.cntr_value AS FLOAT) / CAST(ls.cntr_value AS FLOAT)AS DECIMAL(18,2)) * 100 AS [Log Used %], -db.[compatibility_level] AS [DB Compatibility Level], -db.is_mixed_page_allocation_on, db.page_verify_option_desc AS [Page Verify Option], -db.is_auto_create_stats_on, db.is_auto_update_stats_on, db.is_auto_update_stats_async_on, db.is_parameterization_forced, -db.snapshot_isolation_state_desc, db.is_read_committed_snapshot_on, db.is_auto_close_on, db.is_auto_shrink_on, -db.target_recovery_time_in_seconds, db.is_cdc_enabled, db.is_published, db.is_distributor, db.is_encrypted, -db.group_database_id, db.replica_id,db.is_memory_optimized_elevate_to_snapshot_on, -db.delayed_durability_desc, db.is_auto_create_stats_incremental_on, -db.is_query_store_on, db.is_sync_with_backup, -db.is_supplemental_logging_enabled, db.is_remote_data_archive_enabled -FROM sys.databases AS db WITH (NOLOCK) -INNER JOIN sys.dm_os_performance_counters AS lu WITH (NOLOCK) -ON db.name = lu.instance_name -INNER JOIN sys.dm_os_performance_counters AS ls WITH (NOLOCK) -ON db.name = ls.instance_name -WHERE lu.counter_name LIKE N'Log File(s) Used Size (KB)%' -AND ls.counter_name LIKE N'Log File(s) Size (KB)%' -AND ls.cntr_value > 0 OPTION (RECOMPILE); - --- Things to look at: --- How many databases are on the instance? --- What recovery models are they using? --- What is the log reuse wait description? --- How full are the transaction logs? --- What compatibility level are the databases on? --- What is the Page Verify Option? (should be CHECKSUM) --- Is Auto Update Statistics Asynchronously enabled? --- Make sure auto_shrink and auto_close are not enabled! - --- is_mixed_page_allocation_on is a new property for SQL Server 2016. Equivalent to TF 1118 for a user database - - - --- Missing Indexes for all databases by Index Advantage (Query 29) (Missing Indexes All Databases) -SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], -migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], -mid.equality_columns, mid.inequality_columns, mid.included_columns, -migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact -FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) -INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) -ON migs.group_handle = mig.index_group_handle -INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) -ON mig.index_handle = mid.index_handle -ORDER BY index_advantage DESC OPTION (RECOMPILE); - --- Getting missing index information for all of the databases on the instance is very useful --- Look at last user seek time, number of user seeks to help determine source and importance --- Also look at avg_user_impact and avg_total_user_cost to help determine importance --- SQL Server is overly eager to add included columns, so beware --- Do not just blindly add indexes that show up from this query!!! - - - --- Get VLF Counts for all databases on the instance (Query 30) (VLF Counts) --- (adapted from Michelle Ufford) -CREATE TABLE #VLFInfo (RecoveryUnitID int, FileID int, - FileSize bigint, StartOffset bigint, - FSeqNo bigint, [Status] bigint, - Parity bigint, CreateLSN numeric(38)); - -CREATE TABLE #VLFCountResults(DatabaseName sysname, VLFCount int); - -EXEC sp_MSforeachdb N'Use [?]; - - INSERT INTO #VLFInfo - EXEC sp_executesql N''DBCC LOGINFO([?])''; - - INSERT INTO #VLFCountResults - SELECT DB_NAME(), COUNT(*) - FROM #VLFInfo; - - TRUNCATE TABLE #VLFInfo;' - -SELECT DatabaseName, VLFCount -FROM #VLFCountResults -ORDER BY VLFCount DESC; - -DROP TABLE #VLFInfo; -DROP TABLE #VLFCountResults; - --- High VLF counts can affect write performance --- and they can make full database restores and crash recovery take much longer --- Try to keep your VLF counts under 200 in most cases (depending on log file size) - --- Important change to VLF creation algorithm in SQL Server 2014 --- http://www.sqlskills.com/blogs/paul/important-change-vlf-creation-algorithm-sql-server-2014/ - - - --- Get CPU utilization by database (Query 31) (CPU Usage by Database) -WITH DB_CPU_Stats -AS -(SELECT pa.DatabaseID, DB_Name(pa.DatabaseID) AS [Database Name], SUM(qs.total_worker_time/1000) AS [CPU_Time_Ms] - FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) - CROSS APPLY (SELECT CONVERT(int, value) AS [DatabaseID] - FROM sys.dm_exec_plan_attributes(qs.plan_handle) - WHERE attribute = N'dbid') AS pa - GROUP BY DatabaseID) -SELECT ROW_NUMBER() OVER(ORDER BY [CPU_Time_Ms] DESC) AS [CPU Rank], - [Database Name], [CPU_Time_Ms] AS [CPU Time (ms)], - CAST([CPU_Time_Ms] * 1.0 / SUM([CPU_Time_Ms]) OVER() * 100.0 AS DECIMAL(5, 2)) AS [CPU Percent] -FROM DB_CPU_Stats -WHERE DatabaseID <> 32767 -- ResourceDB -ORDER BY [CPU Rank] OPTION (RECOMPILE); - --- Helps determine which database is using the most CPU resources on the instance - - --- Get I/O utilization by database (Query 32) (IO Usage By Database) -WITH Aggregate_IO_Statistics -AS -(SELECT DB_NAME(database_id) AS [Database Name], -CAST(SUM(num_of_bytes_read + num_of_bytes_written)/1048576 AS DECIMAL(12, 2)) AS io_in_mb -FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS [DM_IO_STATS] -GROUP BY database_id) -SELECT ROW_NUMBER() OVER(ORDER BY io_in_mb DESC) AS [I/O Rank], [Database Name], io_in_mb AS [Total I/O (MB)], - CAST(io_in_mb/ SUM(io_in_mb) OVER() * 100.0 AS DECIMAL(5,2)) AS [I/O Percent] -FROM Aggregate_IO_Statistics -ORDER BY [I/O Rank] OPTION (RECOMPILE); - --- Helps determine which database is using the most I/O resources on the instance - - --- Get total buffer usage by database for current instance (Query 33) (Total Buffer Usage by Database) --- This make take some time to run on a busy instance -WITH AggregateBufferPoolUsage -AS -(SELECT DB_NAME(database_id) AS [Database Name], -CAST(COUNT(*) * 8/1024.0 AS DECIMAL (10,2)) AS [CachedSize] -FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) -WHERE database_id <> 32767 -- ResourceDB -GROUP BY DB_NAME(database_id)) -SELECT ROW_NUMBER() OVER(ORDER BY CachedSize DESC) AS [Buffer Pool Rank], [Database Name], CachedSize AS [Cached Size (MB)], - CAST(CachedSize / SUM(CachedSize) OVER() * 100.0 AS DECIMAL(5,2)) AS [Buffer Pool Percent] -FROM AggregateBufferPoolUsage -ORDER BY [Buffer Pool Rank] OPTION (RECOMPILE); - --- Tells you how much memory (in the buffer pool) --- is being used by each database on the instance - - --- Clear Wait Stats with this command --- DBCC SQLPERF('sys.dm_os_wait_stats', CLEAR); - --- Isolate top waits for server instance since last restart or wait statistics clear (Query 34) (Top Waits) -WITH [Waits] -AS (SELECT wait_type, wait_time_ms/ 1000.0 AS [WaitS], - (wait_time_ms - signal_wait_time_ms) / 1000.0 AS [ResourceS], - signal_wait_time_ms / 1000.0 AS [SignalS], - waiting_tasks_count AS [WaitCount], - 100.0 * wait_time_ms / SUM (wait_time_ms) OVER() AS [Percentage], - ROW_NUMBER() OVER(ORDER BY wait_time_ms DESC) AS [RowNum] - FROM sys.dm_os_wait_stats WITH (NOLOCK) - WHERE [wait_type] NOT IN ( - N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', - N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', - N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', - N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', - N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', - N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', - N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', - N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', - N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', - N'MEMORY_ALLOCATION_EXT', N'ONDEMAND_TASK_QUEUE', - N'PREEMPTIVE_OS_LIBRARYOPS', N'PREEMPTIVE_OS_COMOPS', N'PREEMPTIVE_OS_CRYPTOPS', - N'PREEMPTIVE_OS_PIPEOPS', N'PREEMPTIVE_OS_AUTHENTICATIONOPS', - N'PREEMPTIVE_OS_GENERICOPS', N'PREEMPTIVE_OS_VERIFYTRUST', - N'PREEMPTIVE_OS_FILEOPS', N'PREEMPTIVE_OS_DEVICEOPS', - N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', - N'QDS_ASYNC_QUEUE', - N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', - N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', - N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', - N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', - N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', - N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', - N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', - N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'XE_DISPATCHER_JOIN', - N'XE_DISPATCHER_WAIT', N'XE_LIVE_TARGET_TVF', N'XE_TIMER_EVENT') - AND waiting_tasks_count > 0) -SELECT - MAX (W1.wait_type) AS [WaitType], - CAST (MAX (W1.WaitS) AS DECIMAL (16,2)) AS [Wait_Sec], - CAST (MAX (W1.ResourceS) AS DECIMAL (16,2)) AS [Resource_Sec], - CAST (MAX (W1.SignalS) AS DECIMAL (16,2)) AS [Signal_Sec], - MAX (W1.WaitCount) AS [Wait Count], - CAST (MAX (W1.Percentage) AS DECIMAL (5,2)) AS [Wait Percentage], - CAST ((MAX (W1.WaitS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgWait_Sec], - CAST ((MAX (W1.ResourceS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgRes_Sec], - CAST ((MAX (W1.SignalS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgSig_Sec] -FROM Waits AS W1 -INNER JOIN Waits AS W2 -ON W2.RowNum <= W1.RowNum -GROUP BY W1.RowNum -HAVING SUM (W2.Percentage) - MAX (W1.Percentage) < 99 -- percentage threshold -OPTION (RECOMPILE); - --- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure - --- SQL Server Wait Types Library (Paul Randal) --- https://www.sqlskills.com/help/waits/ - --- The SQL Server Wait Type Repository --- http://blogs.msdn.com/b/psssql/archive/2009/11/03/the-sql-server-wait-type-repository.aspx - --- Wait statistics, or please tell me where it hurts --- http://www.sqlskills.com/blogs/paul/wait-statistics-or-please-tell-me-where-it-hurts/ - --- SQL Server 2005 Performance Tuning using the Waits and Queues --- http://technet.microsoft.com/en-us/library/cc966413.aspx - --- sys.dm_os_wait_stats (Transact-SQL) --- http://msdn.microsoft.com/en-us/library/ms179984(v=sql.120).aspx - - - --- Get a count of SQL connections by IP address (Query 35) (Connection Counts by IP Address) -SELECT ec.client_net_address, es.[program_name], es.[host_name], es.login_name, -COUNT(ec.session_id) AS [connection count] -FROM sys.dm_exec_sessions AS es WITH (NOLOCK) -INNER JOIN sys.dm_exec_connections AS ec WITH (NOLOCK) -ON es.session_id = ec.session_id -GROUP BY ec.client_net_address, es.[program_name], es.[host_name], es.login_name -ORDER BY ec.client_net_address, es.[program_name] OPTION (RECOMPILE); - --- This helps you figure where your database load is coming from --- and verifies connectivity from other machines - - --- Get Average Task Counts (run multiple times) (Query 36) (Avg Task Counts) -SELECT AVG(current_tasks_count) AS [Avg Task Count], -AVG(work_queue_count) AS [Avg Work Queue Count], -AVG(runnable_tasks_count) AS [Avg Runnable Task Count], -AVG(pending_disk_io_count) AS [Avg Pending DiskIO Count] -FROM sys.dm_os_schedulers WITH (NOLOCK) -WHERE scheduler_id < 255 OPTION (RECOMPILE); - --- Sustained values above 10 suggest further investigation in that area --- High Avg Task Counts are often caused by blocking/deadlocking or other resource contention - --- Sustained values above 1 suggest further investigation in that area --- High Avg Runnable Task Counts are a good sign of CPU pressure --- High Avg Pending DiskIO Counts are a sign of disk pressure - - --- Detect blocking (run multiple times) (Query 37) (Detect Blocking) -SELECT t1.resource_type AS [lock type], DB_NAME(resource_database_id) AS [database], -t1.resource_associated_entity_id AS [blk object],t1.request_mode AS [lock req], --- lock requested -t1.request_session_id AS [waiter sid], t2.wait_duration_ms AS [wait time], -- spid of waiter -(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK) -- get sql for waiter -CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) -WHERE r.session_id = t1.request_session_id) AS [waiter_batch], -(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, - (CASE WHEN r.statement_end_offset = -1 - THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 - ELSE r.statement_end_offset END - r.statement_start_offset)/2) -FROM sys.dm_exec_requests AS r WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt -WHERE r.session_id = t1.request_session_id) AS [waiter_stmt], -- statement blocked -t2.blocking_session_id AS [blocker sid], -- spid of blocker -(SELECT [text] FROM sys.sysprocesses AS p -- get sql for blocker -CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) -WHERE p.spid = t2.blocking_session_id) AS [blocker_batch] -FROM sys.dm_tran_locks AS t1 WITH (NOLOCK) -INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK) -ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE); - --- Helps troubleshoot blocking and deadlocking issues --- The results will change from second to second on a busy system --- You should run this query multiple times when you see signs of blocking - - - --- Get CPU Utilization History for last 256 minutes (in one minute intervals) (Query 38) (CPU Utilization History) --- This version works with SQL Server 2016 -DECLARE @ts_now bigint = (SELECT cpu_ticks/(cpu_ticks/ms_ticks) FROM sys.dm_os_sys_info WITH (NOLOCK)); - -SELECT TOP(256) SQLProcessUtilization AS [SQL Server Process CPU Utilization], - SystemIdle AS [System Idle Process], - 100 - SystemIdle - SQLProcessUtilization AS [Other Process CPU Utilization], - DATEADD(ms, -1 * (@ts_now - [timestamp]), GETDATE()) AS [Event Time] -FROM (SELECT record.value('(./Record/@id)[1]', 'int') AS record_id, - record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') - AS [SystemIdle], - record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', 'int') - AS [SQLProcessUtilization], [timestamp] - FROM (SELECT [timestamp], CONVERT(xml, record) AS [record] - FROM sys.dm_os_ring_buffers WITH (NOLOCK) - WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' - AND record LIKE N'%%') AS x) AS y -ORDER BY record_id DESC OPTION (RECOMPILE); - --- Look at the trend over the entire period --- Also look at high sustained Other Process CPU Utilization values - - - --- Get top total worker time queries for entire instance (Query 39) (Top Worker Time Queries) -SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], LEFT(t.[text], 50) AS [Short Query Text], -qs.total_worker_time AS [Total Worker Time], qs.min_worker_time AS [Min Worker Time], -qs.total_worker_time/qs.execution_count AS [Avg Worker Time], -qs.max_worker_time AS [Max Worker Time], -qs.min_elapsed_time AS [Min Elapsed Time], -qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], -qs.max_elapsed_time AS [Max Elapsed Time], -qs.min_logical_reads AS [Min Logical Reads], -qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], -qs.max_logical_reads AS [Max Logical Reads], -qs.execution_count AS [Execution Count], qs.creation_time AS [Creation Time] --- ,t.[text] AS [Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t -CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp -ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); - - --- Helps you find the most expensive queries from a CPU perspective across the entire instance --- Can also help track down parameter sniffing issues - - - --- Page Life Expectancy (PLE) value for each NUMA node in current instance (Query 40) (PLE by NUMA Node) -SELECT @@SERVERNAME AS [Server Name], [object_name], instance_name, cntr_value AS [Page Life Expectancy] -FROM sys.dm_os_performance_counters WITH (NOLOCK) -WHERE [object_name] LIKE N'%Buffer Node%' -- Handles named instances -AND counter_name = N'Page life expectancy' OPTION (RECOMPILE); - --- PLE is a good measurement of memory pressure --- Higher PLE is better. Watch the trend over time, not the absolute value --- This will only return one row for non-NUMA systems - --- Page Life Expectancy isnt what you think --- http://www.sqlskills.com/blogs/paul/page-life-expectancy-isnt-what-you-think/ - - --- Memory Grants Pending value for current instance (Query 41) (Memory Grants Pending) -SELECT @@SERVERNAME AS [Server Name], [object_name], cntr_value AS [Memory Grants Pending] -FROM sys.dm_os_performance_counters WITH (NOLOCK) -WHERE [object_name] LIKE N'%Memory Manager%' -- Handles named instances -AND counter_name = N'Memory Grants Pending' OPTION (RECOMPILE); - --- Run multiple times, and run periodically is you suspect you are under memory pressure --- Memory Grants Pending above zero for a sustained period is a very strong indicator of internal memory pressure - - --- Memory Clerk Usage for instance (Query 42) (Memory Clerk Usage) --- Look for high value for CACHESTORE_SQLCP (Ad-hoc query plans) -SELECT TOP(10) mc.[type] AS [Memory Clerk Type], - CAST((SUM(mc.pages_kb)/1024.0) AS DECIMAL (15,2)) AS [Memory Usage (MB)] -FROM sys.dm_os_memory_clerks AS mc WITH (NOLOCK) -GROUP BY mc.[type] -ORDER BY SUM(mc.pages_kb) DESC OPTION (RECOMPILE); - --- MEMORYCLERK_SQLBUFFERPOOL was new for SQL Server 2012. It should be your highest consumer of memory - --- CACHESTORE_SQLCP SQL Plans --- These are cached SQL statements or batches that aren't in stored procedures, functions and triggers --- Watch out for high values for CACHESTORE_SQLCP - --- CACHESTORE_OBJCP Object Plans --- These are compiled plans for stored procedures, functions and triggers - - - --- Find single-use, ad-hoc and prepared queries that are bloating the plan cache (Query 43) (Ad hoc Queries) -SELECT TOP(50) [text] AS [QueryText], cp.cacheobjtype, cp.objtype, cp.size_in_bytes/1024 AS [Plan Size in KB] -FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) -WHERE cp.cacheobjtype = N'Compiled Plan' -AND cp.objtype IN (N'Adhoc', N'Prepared') -AND cp.usecounts = 1 -ORDER BY cp.size_in_bytes DESC OPTION (RECOMPILE); - --- Gives you the text, type and size of single-use ad-hoc and prepared queries that waste space in the plan cache --- Enabling 'optimize for ad hoc workloads' for the instance can help (SQL Server 2008 and above only) --- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this --- Enabling forced parameterization for the database can help, but test first! - --- Plan cache, adhoc workloads and clearing the single-use plan cache bloat --- http://www.sqlskills.com/blogs/kimberly/plan-cache-adhoc-workloads-and-clearing-the-single-use-plan-cache-bloat/ - - --- Get top total logical reads queries for entire instance (Query 44) (Top Logical Reads Queries) -SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], LEFT(t.[text], 50) AS [Short Query Text], -qs.total_logical_reads AS [Total Logical Reads], -qs.min_logical_reads AS [Min Logical Reads], -qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], -qs.max_logical_reads AS [Max Logical Reads], -qs.min_worker_time AS [Min Worker Time], -qs.total_worker_time/qs.execution_count AS [Avg Worker Time], -qs.max_worker_time AS [Max Worker Time], -qs.min_elapsed_time AS [Min Elapsed Time], -qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], -qs.max_elapsed_time AS [Max Elapsed Time], -qs.execution_count AS [Execution Count], qs.creation_time AS [Creation Time] ---,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t -CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp -ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); - - --- Helps you find the most expensive queries from a memory perspective across the entire instance --- Can also help track down parameter sniffing issues - - - - - - - - - --- Database specific queries ***************************************************************** - --- **** Switch to a user database that you are interested in ***** -USE YourDatabaseName; -- make sure to change to an actual database on your instance, not the master system database -GO - --- Individual File Sizes and space available for current database (Query 45) (File Sizes and Space) -SELECT f.name AS [File Name] , f.physical_name AS [Physical Name], -CAST((f.size/128.0) AS DECIMAL(15,2)) AS [Total Size in MB], -CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) -AS [Available Space In MB], f.[file_id], fg.name AS [Filegroup Name], -f.is_percent_growth, f.growth, -fg.is_default, fg.is_read_only, fg.is_autogrow_all_files -FROM sys.database_files AS f WITH (NOLOCK) -LEFT OUTER JOIN sys.filegroups AS fg WITH (NOLOCK) -ON f.data_space_id = fg.data_space_id -ORDER BY f.[file_id] OPTION (RECOMPILE); - --- Look at how large and how full the files are and where they are located --- Make sure the transaction log is not full!! - --- is_autogrow_all_files is new for SQL Server 2016. Equivalent to TF 1117 for user databases - - --- Log space usage for current database (Query 46) (Log Space Usage) -SELECT DB_NAME(lsu.database_id) AS [Database Name], db.recovery_model_desc AS [Recovery Model], - CAST(total_log_size_in_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Total Log Space (MB)], - CAST(used_log_space_in_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Used Log Space (MB)], - CAST(used_log_space_in_percent AS DECIMAL(10, 2)) AS [Used Log Space %], - CAST(log_space_in_bytes_since_last_backup/1048576.0 AS DECIMAL(10, 2)) AS [Used Log Space Since Last Backup (MB)], - db.log_reuse_wait_desc -FROM sys.dm_db_log_space_usage AS lsu WITH (NOLOCK) -INNER JOIN sys.databases AS db WITH (NOLOCK) -ON lsu.database_id = db.database_id -OPTION (RECOMPILE); - --- Look at log file size and usage, along with the log reuse wait description for the current database - - - --- Get database scoped configuration values for current database (Query 47) (Database-scoped Configurations) -SELECT configuration_id, name, [value] AS [value_for_primary], value_for_secondary -FROM sys.database_scoped_configurations WITH (NOLOCK) OPTION (RECOMPILE); - --- This lets you see the value of these new properties for the current database - --- Clear plan cache for current database --- ALTER DATABASE SCOPED CONFIGURATION CLEAR PROCEDURE_CACHE; - --- ALTER DATABASE SCOPED CONFIGURATION (Transact-SQL) --- https://msdn.microsoft.com/en-us/library/mt629158.aspx - - --- I/O Statistics by file for the current database (Query 48) (IO Stats By File) -SELECT DB_NAME(DB_ID()) AS [Database Name], df.name AS [Logical Name], vfs.[file_id], df.type_desc, -df.physical_name AS [Physical Name], CAST(vfs.size_on_disk_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Size on Disk (MB)], -vfs.num_of_reads, vfs.num_of_writes, vfs.io_stall_read_ms, vfs.io_stall_write_ms, -CAST(100. * vfs.io_stall_read_ms/(vfs.io_stall_read_ms + vfs.io_stall_write_ms) AS DECIMAL(10,1)) AS [IO Stall Reads Pct], -CAST(100. * vfs.io_stall_write_ms/(vfs.io_stall_write_ms + vfs.io_stall_read_ms) AS DECIMAL(10,1)) AS [IO Stall Writes Pct], -(vfs.num_of_reads + vfs.num_of_writes) AS [Writes + Reads], -CAST(vfs.num_of_bytes_read/1048576.0 AS DECIMAL(10, 2)) AS [MB Read], -CAST(vfs.num_of_bytes_written/1048576.0 AS DECIMAL(10, 2)) AS [MB Written], -CAST(100. * vfs.num_of_reads/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Reads Pct], -CAST(100. * vfs.num_of_writes/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Write Pct], -CAST(100. * vfs.num_of_bytes_read/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Read Bytes Pct], -CAST(100. * vfs.num_of_bytes_written/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Written Bytes Pct] -FROM sys.dm_io_virtual_file_stats(DB_ID(), NULL) AS vfs -INNER JOIN sys.database_files AS df WITH (NOLOCK) -ON vfs.[file_id]= df.[file_id] OPTION (RECOMPILE); - --- This helps you characterize your workload better from an I/O perspective for this database --- It helps you determine whether you has an OLTP or DW/DSS type of workload - - - --- Get most frequently executed queries for this database (Query 49) (Query Execution Counts) -SELECT TOP(50) LEFT(t.[text], 50) AS [Short Query Text], qs.execution_count AS [Execution Count], -qs.total_logical_reads AS [Total Logical Reads], -qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], -qs.total_worker_time AS [Total Worker Time], -qs.total_worker_time/qs.execution_count AS [Avg Worker Time], -qs.total_elapsed_time AS [Total Elapsed Time], -qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], -qs.creation_time AS [Creation Time] ---,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t -CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp -WHERE t.dbid = DB_ID() -ORDER BY qs.execution_count DESC OPTION (RECOMPILE); - - - --- Top Cached SPs By Execution Count (Query 50) (SP Execution Counts) -SELECT TOP(100) p.name AS [SP Name], qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.total_worker_time AS [TotalWorkerTime], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY qs.execution_count DESC OPTION (RECOMPILE); - --- Tells you which cached stored procedures are called the most often --- This helps you characterize and baseline your workload - - --- Top Cached SPs By Avg Elapsed Time (Query 51) (SP Avg Elapsed Time) -SELECT TOP(25) p.name AS [SP Name], qs.min_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.max_elapsed_time, qs.last_elapsed_time, qs.total_elapsed_time, qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], -qs.total_worker_time AS [TotalWorkerTime], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); - --- This helps you find high average elapsed time cached stored procedures that --- may be easy to optimize with standard query tuning techniques - - - --- Top Cached SPs By Total Worker time. Worker time relates to CPU cost (Query 52) (SP Worker Time) -SELECT TOP(25) p.name AS [SP Name], qs.total_worker_time AS [TotalWorkerTime], -qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count -AS [avg_elapsed_time], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a CPU perspective --- You should look at this if you see signs of CPU pressure - - --- Top Cached SPs By Total Logical Reads. Logical reads relate to memory pressure (Query 53) (SP Logical Reads) -SELECT TOP(25) p.name AS [SP Name], qs.total_logical_reads AS [TotalLogicalReads], -qs.total_logical_reads/qs.execution_count AS [AvgLogicalReads],qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count -AS [avg_elapsed_time], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a memory perspective --- You should look at this if you see signs of memory pressure - - --- Top Cached SPs By Total Physical Reads. Physical reads relate to disk read I/O pressure (Query 54) (SP Physical Reads) -SELECT TOP(25) p.name AS [SP Name],qs.total_physical_reads AS [TotalPhysicalReads], -qs.total_physical_reads/qs.execution_count AS [AvgPhysicalReads], qs.execution_count, -qs.total_logical_reads,qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count -AS [avg_elapsed_time], qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -AND qs.total_physical_reads > 0 -ORDER BY qs.total_physical_reads DESC, qs.total_logical_reads DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a read I/O perspective --- You should look at this if you see signs of I/O pressure or of memory pressure - - - --- Top Cached SPs By Total Logical Writes (Query 55) (SP Logical Writes) --- Logical writes relate to both memory and disk I/O pressure -SELECT TOP(25) p.name AS [SP Name], qs.total_logical_writes AS [TotalLogicalWrites], -qs.total_logical_writes/qs.execution_count AS [AvgLogicalWrites], qs.execution_count, -ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], -qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], -qs.cached_time -FROM sys.procedures AS p WITH (NOLOCK) -INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) -ON p.[object_id] = qs.[object_id] -WHERE qs.database_id = DB_ID() -AND qs.total_logical_writes > 0 -ORDER BY qs.total_logical_writes DESC OPTION (RECOMPILE); - --- This helps you find the most expensive cached stored procedures from a write I/O perspective --- You should look at this if you see signs of I/O pressure or of memory pressure - - --- Lists the top statements by average input/output usage for the current database (Query 56) (Top IO Statements) -SELECT TOP(50) OBJECT_NAME(qt.objectid, dbid) AS [SP Name], -(qs.total_logical_reads + qs.total_logical_writes) /qs.execution_count AS [Avg IO], qs.execution_count AS [Execution Count], -SUBSTRING(qt.[text],qs.statement_start_offset/2, - (CASE - WHEN qs.statement_end_offset = -1 - THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 - ELSE qs.statement_end_offset - END - qs.statement_start_offset)/2) AS [Query Text] -FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) -CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt -WHERE qt.[dbid] = DB_ID() -ORDER BY [Avg IO] DESC OPTION (RECOMPILE); - --- Helps you find the most expensive statements for I/O by SP - - - --- Possible Bad NC Indexes (writes > reads) (Query 57) (Bad NC Indexes) -SELECT OBJECT_NAME(s.[object_id]) AS [Table Name], i.name AS [Index Name], i.index_id, -i.is_disabled, i.is_hypothetical, i.has_filter, i.fill_factor, -user_updates AS [Total Writes], user_seeks + user_scans + user_lookups AS [Total Reads], -user_updates - (user_seeks + user_scans + user_lookups) AS [Difference] -FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON s.[object_id] = i.[object_id] -AND i.index_id = s.index_id -WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 -AND s.database_id = DB_ID() -AND user_updates > (user_seeks + user_scans + user_lookups) -AND i.index_id > 1 -ORDER BY [Difference] DESC, [Total Writes] DESC, [Total Reads] ASC OPTION (RECOMPILE); - --- Look for indexes with high numbers of writes and zero or very low numbers of reads --- Consider your complete workload, and how long your instance has been running --- Investigate further before dropping an index! - - --- Missing Indexes for current database by Index Advantage (Query 58) (Missing Indexes) -SELECT DISTINCT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], -migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], -mid.equality_columns, mid.inequality_columns, mid.included_columns, -migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact, -OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows] -FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) -INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) -ON migs.group_handle = mig.index_group_handle -INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) -ON mig.index_handle = mid.index_handle -INNER JOIN sys.partitions AS p WITH (NOLOCK) -ON p.[object_id] = mid.[object_id] -WHERE mid.database_id = DB_ID() -ORDER BY index_advantage DESC OPTION (RECOMPILE); - --- Look at index advantage, last user seek time, number of user seeks to help determine source and importance --- SQL Server is overly eager to add included columns, so beware --- Do not just blindly add indexes that show up from this query!!! - - --- Find missing index warnings for cached plans in the current database (Query 59) (Missing Index Warnings) --- Note: This query could take some time on a busy instance -SELECT TOP(25) OBJECT_NAME(objectid) AS [ObjectName], - query_plan, cp.objtype, cp.usecounts, cp.size_in_bytes -FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) -CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp -WHERE CAST(query_plan AS NVARCHAR(MAX)) LIKE N'%MissingIndex%' -AND dbid = DB_ID() -ORDER BY cp.usecounts DESC OPTION (RECOMPILE); - --- Helps you connect missing indexes to specific stored procedures or queries --- This can help you decide whether to add them or not - - --- Breaks down buffers used by current database by object (table, index) in the buffer cache (Query 60) (Buffer Usage) --- Note: This query could take some time on a busy instance -SELECT OBJECT_NAME(p.[object_id]) AS [Object Name], p.index_id, -CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], -COUNT(*) AS [BufferCount], p.Rows AS [Row Count], -p.data_compression_desc AS [Compression Type] -FROM sys.allocation_units AS a WITH (NOLOCK) -INNER JOIN sys.dm_os_buffer_descriptors AS b WITH (NOLOCK) -ON a.allocation_unit_id = b.allocation_unit_id -INNER JOIN sys.partitions AS p WITH (NOLOCK) -ON a.container_id = p.hobt_id -WHERE b.database_id = CONVERT(int,DB_ID()) -AND p.[object_id] > 100 -GROUP BY p.[object_id], p.index_id, p.data_compression_desc, p.[Rows] -ORDER BY [BufferCount] DESC OPTION (RECOMPILE); - --- Tells you what tables and indexes are using the most memory in the buffer cache --- It can help identify possible candidates for data compression - - --- Get Table names, row counts, and compression status for clustered index or heap (Query 61) (Table Sizes) -SELECT OBJECT_NAME(object_id) AS [ObjectName], -SUM(Rows) AS [RowCount], data_compression_desc AS [CompressionType] -FROM sys.partitions WITH (NOLOCK) -WHERE index_id < 2 --ignore the partitions from the non-clustered index if any -AND OBJECT_NAME(object_id) NOT LIKE N'sys%' -AND OBJECT_NAME(object_id) NOT LIKE N'queue_%' -AND OBJECT_NAME(object_id) NOT LIKE N'filestream_tombstone%' -AND OBJECT_NAME(object_id) NOT LIKE N'fulltext%' -AND OBJECT_NAME(object_id) NOT LIKE N'ifts_comp_fragment%' -AND OBJECT_NAME(object_id) NOT LIKE N'filetable_updates%' -AND OBJECT_NAME(object_id) NOT LIKE N'xml_index_nodes%' -AND OBJECT_NAME(object_id) NOT LIKE N'sqlagent_job%' -AND OBJECT_NAME(object_id) NOT LIKE N'plan_persist%' -GROUP BY object_id, data_compression_desc -ORDER BY SUM(Rows) DESC OPTION (RECOMPILE); - --- Gives you an idea of table sizes, and possible data compression opportunities - - - --- Get some key table properties (Query 62) (Table Properties) -SELECT OBJECT_NAME(t.[object_id]) AS [ObjectName], p.[rows] AS [Table Rows], p.index_id, - p.data_compression_desc AS [Index Data Compression], - t.create_date, t.lock_on_bulk_load, t.is_replicated, t.has_replication_filter, - t.is_tracked_by_cdc, t.lock_escalation_desc, t.is_memory_optimized, t.durability_desc, t.is_filetable, - t.temporal_type_desc, t.is_remote_data_archive_enabled, t.remote_data_archive_migration_state_desc, t.is_external -- new for SQL Server 2016 -FROM sys.tables AS t WITH (NOLOCK) -INNER JOIN sys.partitions AS p WITH (NOLOCK) -ON t.[object_id] = p.[object_id] -WHERE OBJECT_NAME(t.[object_id]) NOT LIKE N'sys%' -ORDER BY OBJECT_NAME(t.[object_id]), p.index_id OPTION (RECOMPILE); - --- Gives you some good information about your tables --- Is Memory optimized and durability description are Hekaton-related properties that were new in SQL Server 2014 --- temporal_type_desc, is_remote_data_archive_enabled, remote_data_archive_migration_state_desc, is_external are new in SQL Server 2016 - - - --- When were Statistics last updated on all indexes? (Query 63) (Statistics Update) -SELECT SCHEMA_NAME(o.Schema_ID) + N'.' + o.NAME AS [Object Name], o.type_desc AS [Object Type], - i.name AS [Index Name], STATS_DATE(i.[object_id], i.index_id) AS [Statistics Date], - s.auto_created, s.no_recompute, s.user_created, s.is_incremental, s.is_temporary, - st.row_count, st.used_page_count -FROM sys.objects AS o WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON o.[object_id] = i.[object_id] -INNER JOIN sys.stats AS s WITH (NOLOCK) -ON i.[object_id] = s.[object_id] -AND i.index_id = s.stats_id -INNER JOIN sys.dm_db_partition_stats AS st WITH (NOLOCK) -ON o.[object_id] = st.[object_id] -AND i.[index_id] = st.[index_id] -WHERE o.[type] IN ('U', 'V') -AND st.row_count > 0 -ORDER BY STATS_DATE(i.[object_id], i.index_id) DESC OPTION (RECOMPILE); - --- Helps discover possible problems with out-of-date statistics --- Also gives you an idea which indexes are the most active - - --- Look at most frequently modified indexes and statistics (Query 64) (Volatile Indexes) -SELECT o.name AS [Object Name], o.[object_id], o.type_desc, s.name AS [Statistics Name], - s.stats_id, s.no_recompute, s.auto_created, - sp.modification_counter, sp.rows, sp.rows_sampled, sp.last_updated -FROM sys.objects AS o WITH (NOLOCK) -INNER JOIN sys.stats AS s WITH (NOLOCK) -ON s.object_id = o.object_id -CROSS APPLY sys.dm_db_stats_properties(s.object_id, s.stats_id) AS sp -WHERE o.type_desc NOT IN (N'SYSTEM_TABLE', N'INTERNAL_TABLE') -AND sp.modification_counter > 0 -ORDER BY sp.modification_counter DESC, o.name OPTION (RECOMPILE); - - - --- Get fragmentation info for all indexes above a certain size in the current database (Query 65) (Index Fragmentation) --- Note: This query could take some time on a very large database -SELECT DB_NAME(ps.database_id) AS [Database Name], OBJECT_NAME(ps.OBJECT_ID) AS [Object Name], -i.name AS [Index Name], ps.index_id, ps.index_type_desc, ps.avg_fragmentation_in_percent, -ps.fragment_count, ps.page_count, i.fill_factor, i.has_filter, i.filter_definition -FROM sys.dm_db_index_physical_stats(DB_ID(),NULL, NULL, NULL , N'LIMITED') AS ps -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON ps.[object_id] = i.[object_id] -AND ps.index_id = i.index_id -WHERE ps.database_id = DB_ID() -AND ps.page_count > 2500 -ORDER BY ps.avg_fragmentation_in_percent DESC OPTION (RECOMPILE); - --- Helps determine whether you have framentation in your relational indexes --- and how effective your index maintenance strategy is - - ---- Index Read/Write stats (all tables in current DB) ordered by Reads (Query 66) (Overall Index Usage - Reads) -SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, - s.user_seeks, s.user_scans, s.user_lookups, - s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], - s.user_updates AS [Writes], - i.type_desc AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, - s.last_user_scan, s.last_user_lookup, s.last_user_seek -FROM sys.indexes AS i WITH (NOLOCK) -LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -ON i.[object_id] = s.[object_id] -AND i.index_id = s.index_id -AND s.database_id = DB_ID() -WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 -ORDER BY s.user_seeks + s.user_scans + s.user_lookups DESC OPTION (RECOMPILE); -- Order by reads - - --- Show which indexes in the current database are most active for Reads - - ---- Index Read/Write stats (all tables in current DB) ordered by Writes (Query 67) (Overall Index Usage - Writes) -SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.name AS [IndexName], i.index_id, - s.user_updates AS [Writes], s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], - i.type_desc AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, - s.last_system_update, s.last_user_update -FROM sys.indexes AS i WITH (NOLOCK) -LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) -ON i.[object_id] = s.[object_id] -AND i.index_id = s.index_id -AND s.database_id = DB_ID() -WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 -ORDER BY s.user_updates DESC OPTION (RECOMPILE); -- Order by writes - --- Show which indexes in the current database are most active for Writes - - --- Get in-memory OLTP index usage (Query 68) (XTP Index Usage) -SELECT OBJECT_NAME(i.[object_id]) AS [Object Name], i.index_id, i.name, i.type_desc, - xis.scans_started, xis.scans_retries, xis.rows_touched, xis.rows_returned -FROM sys.dm_db_xtp_index_stats AS xis WITH (NOLOCK) -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON i.[object_id] = xis.[object_id] -AND i.index_id = xis.index_id -ORDER BY OBJECT_NAME(i.[object_id]) OPTION (RECOMPILE); - --- This gives you some index usage statistics for in-memory OLTP --- Returns no data if you are not using in-memory OLTP - --- Guidelines for Using Indexes on Memory-Optimized Tables --- https://msdn.microsoft.com/en-us/library/dn133166.aspx - - --- Get lock waits for current database (Query 69) (Lock Waits) -SELECT o.name AS [table_name], i.name AS [index_name], ios.index_id, ios.partition_number, - SUM(ios.row_lock_wait_count) AS [total_row_lock_waits], - SUM(ios.row_lock_wait_in_ms) AS [total_row_lock_wait_in_ms], - SUM(ios.page_lock_wait_count) AS [total_page_lock_waits], - SUM(ios.page_lock_wait_in_ms) AS [total_page_lock_wait_in_ms], - SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) AS [total_lock_wait_in_ms] -FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) AS ios -INNER JOIN sys.objects AS o WITH (NOLOCK) -ON ios.[object_id] = o.[object_id] -INNER JOIN sys.indexes AS i WITH (NOLOCK) -ON ios.[object_id] = i.[object_id] -AND ios.index_id = i.index_id -WHERE o.[object_id] > 100 -GROUP BY o.name, i.name, ios.index_id, ios.partition_number -HAVING SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) > 0 -ORDER BY total_lock_wait_in_ms DESC OPTION (RECOMPILE); - --- This query is helpful for troubleshooting blocking and deadlocking issues - - - --- Look at UDF execution statistics (Query 70) (UDF Statistics) -SELECT OBJECT_NAME(object_id) AS [Function Name], execution_count, - total_elapsed_time/1000 AS [time_milliseconds], fs.[type_desc] -FROM sys.dm_exec_function_stats AS fs WITH (NOLOCK) -WHERE database_id = DB_ID() -ORDER BY OBJECT_NAME(object_id) OPTION (RECOMPILE); - --- New for SQL Server 2016 --- Helps you investigate UDF performance issues - - --- Get QueryStore Options for this database (Query 71) (QueryStore Options) -SELECT actual_state, actual_state_desc, readonly_reason, - current_storage_size_mb, max_storage_size_mb -FROM sys.database_query_store_options WITH (NOLOCK) -OPTION (RECOMPILE); - --- New for SQL Server 2016 --- Requires that QueryStore is enabled for this database - --- Tuning Workload Performance with Query Store --- http://blogs.technet.com/b/dataplatforminsider/archive/2015/12/16/tuning-workload-performance-with-query-store.aspx - - --- Get highest aggregate duration queries over last hour (Query 72) (High Aggregate Duration Queries) -WITH AggregatedDurationLastHour -AS -(SELECT q.query_id, SUM(count_executions * avg_duration) AS total_duration, - COUNT (distinct p.plan_id) AS number_of_plans - FROM sys.query_store_query_text AS qt WITH (NOLOCK) - INNER JOIN sys.query_store_query AS q WITH (NOLOCK) - ON qt.query_text_id = q.query_text_id - INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) - ON q.query_id = p.query_id - INNER JOIN sys.query_store_runtime_stats AS rs WITH (NOLOCK) - ON rs.plan_id = p.plan_id - INNER JOIN sys.query_store_runtime_stats_interval AS rsi WITH (NOLOCK) - ON rsi.runtime_stats_interval_id = rs.runtime_stats_interval_id - WHERE rsi.start_time >= DATEADD(hour, -1, GETUTCDATE()) - AND rs.execution_type_desc = N'Regular' - GROUP BY q.query_id), -OrderedDuration AS -(SELECT query_id, total_duration, number_of_plans, - ROW_NUMBER () OVER (ORDER BY total_duration DESC, query_id) AS RN - FROM AggregatedDurationLastHour) -SELECT OBJECT_NAME(q.object_id) AS [Containing Object], qt.query_sql_text, -od.total_duration AS [Total Duration (microsecs)], -od.number_of_plans AS [Plan Count], -p.is_forced_plan, p.is_parallel_plan, p.is_trivial_plan, -q.query_parameterization_type_desc, p.[compatibility_level], -p.last_compile_start_time, q.last_execution_time, -CONVERT(xml, p.query_plan) AS query_plan_xml -FROM OrderedDuration AS od -INNER JOIN sys.query_store_query AS q WITH (NOLOCK) -ON q.query_id = od.query_id -INNER JOIN sys.query_store_query_text AS qt WITH (NOLOCK) -ON q.query_text_id = qt.query_text_id -INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) -ON q.query_id = p.query_id -WHERE od.RN <= 50 -ORDER BY total_duration DESC OPTION (RECOMPILE); - --- New for SQL Server 2016 --- Requires that QueryStore is enabled for this database - - - - --- Look at recent Full backups for the current database (Query 73) (Recent Full Backups) -SELECT TOP (30) bs.machine_name, bs.server_name, bs.database_name AS [Database Name], bs.recovery_model, -CONVERT (BIGINT, bs.backup_size / 1048576 ) AS [Uncompressed Backup Size (MB)], -CONVERT (BIGINT, bs.compressed_backup_size / 1048576 ) AS [Compressed Backup Size (MB)], -CONVERT (NUMERIC (20,2), (CONVERT (FLOAT, bs.backup_size) / -CONVERT (FLOAT, bs.compressed_backup_size))) AS [Compression Ratio], bs.has_backup_checksums, bs.is_copy_only, bs.encryptor_type, -DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) AS [Backup Elapsed Time (sec)], -bs.backup_finish_date AS [Backup Finish Date] -FROM msdb.dbo.backupset AS bs WITH (NOLOCK) -WHERE bs.database_name = DB_NAME(DB_ID()) -AND bs.[type] = 'D' -- Change to L if you want Log backups -ORDER BY bs.backup_finish_date DESC OPTION (RECOMPILE); - --- Are your backup sizes and times changing over time? --- Are you using backup compression? --- Have you done any backup tuning with striped backups, or changing the parameters of the backup command? - - - - - - --- These three Pluralsight Courses go into more detail about how to run these queries and interpret the results - --- SQL Server 2014 DMV Diagnostic Queries Part 1 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part1 - --- SQL Server 2014 DMV Diagnostic Queries Part 2 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part2 - --- SQL Server 2014 DMV Diagnostic Queries Part 3 --- http://www.pluralsight.com/courses/sql-server-2014-dmv-diagnostic-queries-part3 - - - - - + +-- SQL Server 2016 Diagnostic Information Queries +-- Glenn Berry +-- Last Modified: February 1, 2019 +-- https://www.sqlskills.com/blogs/glenn/ +-- http://sqlserverperformance.wordpress.com/ +-- Twitter: GlennAlanBerry + +-- Please listen to my Pluralsight courses +-- https://www.pluralsight.com/author/glenn-berry + +-- If you want to find all of our SQLskills SQL101 blog posts, check out https://www.sqlskills.com/help/sql101/ + + +-- Please make sure you are using the correct version of these diagnostic queries for your version of SQL Server + + +-- If you like PowerShell, there is a very useful community solution for running these queries in an automated fashion +-- https://dbatools.io/ + +-- Invoke-DbaDiagnosticQuery +-- https://dbatools.io/functions/invoke-dbadiagnosticquery/ + + +--****************************************************************************** +--* Copyright (C) 2019 Glenn Berry, SQLskills.com +--* All rights reserved. +--* +--* For more scripts and sample code, check out +--* https://www.sqlskills.com/blogs/glenn +--* +--* You may alter this code for your own *non-commercial* purposes. You may +--* republish altered code as long as you include this copyright and give due credit. +--* +--* +--* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF +--* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED +--* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A +--* PARTICULAR PURPOSE. +--* +--****************************************************************************** + +-- Check the major product version to see if it is SQL Server 2016 CTP 2 or greater +IF NOT EXISTS (SELECT * WHERE CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')) LIKE '13%') + BEGIN + DECLARE @ProductVersion varchar(128) = CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')); + RAISERROR ('Script does not match the ProductVersion [%s] of this instance. Many of these queries may not work on this version.' , 18 , 16 , @ProductVersion); + END + ELSE + PRINT N'You have the correct major version of SQL Server for this diagnostic information script'; + + +-- Instance level queries ******************************* + +-- SQL and OS Version information for current instance (Query 1) (Version Info) +SELECT @@SERVERNAME AS [Server Name], @@VERSION AS [SQL Server and OS Version Info]; +------ + +-- SQL Server 2016 RTM Branch Builds -- SQL Server 2016 SP1 Branch Builds -- SQL Server 2016 SP2 Branch Builds +-- Build Description Release Date Build Description Release Date Build Description Release Date +-- 13.0.200.172 CTP 2.0 5/26/2015 +-- 13.0.300.44 CTP 2.1 6/14/2015 +-- 13.0.407.1 CTP 2.2 7/28/2015 +-- 13.0.500.53 CTP 2.3 9/4/2015 +-- 13.0.600.65 CTP 2.4 9/30/2015 +-- 13.0.700.242 CTP 3.0 10/29/2015 +-- 13.0.900.73 CTP 3.2 12/12/2015 +-- 13.0.1000.276 CTP 3.3 1/27/2016 +-- 13.0.1100.288 RC0 3/2/2016 +-- 13.0.1200.242 RC1 3/18/2016 +-- 13.0.1300.275 RC2 3/28/2016 +-- 13.0.1400.361 RC3 4/11/2016 +-- 13.0.1601.5 RTM 6/1/2016 +-- 13.0.1708.0 RTM-GDR 6/12/2016 +-- 13.0.2149.0 RTM CU1 7/25/2016 +-- 13.0.2164.0 RTM CU2 9/22/2016 +-- 13.0.2186.0 RTM CU3 11/16/2016 ----> 13.0.4001.0 SP1 RTM 11/16/2016 +-- 13.0.2193.0 RTM CU4 1/18/2017 ----> 13.0.4411.0 SP1 CU1 1/18/2017 +-- 13.0.2197.0 RTM CU5 3/20/2017 ----> 13.0.4422.0 SP1 CU2 3/20/2017 +-- 13.0.2204.0 RTM CU6 5/15/2017 ----> 13.0.4435.0 SP1 CU3 5/15/2017 +-- 13.0.2210.0 RTM CU7 8/8/2017 ----> 13.0.4446.0 SP1 CU4 8/8/2017 +-- 13.0.2213.0 RTM CU8 9/18/2017 ----> 13.0.4451.0 SP1 CU5 9/18/2017 +-- 13.0.2216.0 RTM CU9 11/21/2017 ----> 13.0.4457.0 SP1 CU6 11/21/2017 +-- 13.0.4466.4 SP1 CU7 1/4/2018 +-- 13.0.4474.0 SP1 CU8 3/20/2018 ----> 13.0.5026.0 SP2 RTM 4/24/2018 +-- 13.0.4502.0 SP1 CU9 5/30/2018 ----> 13.0.5149.0 SP2 CU1 5/30/2018 +-- 13.0.4514.0 SP1 CU10 7/16/2018 ----> 13.0.5153.0 SP2 CU2 7/16/2018 +-- 13.0.4528.0 SP1 CU11 9/17/2018 ----> 13.0.5216.0 SP2 CU3 9/20/2018 +-- 13.0.4541.0 SP1 CU12 11/13/2018 ----> 13.0.5233.0 SP2 CU4 11/13/2018 +-- 13.0.4550.0 SP1 CU13 1/23/2019 ----> 13.0.5264.1 SP2 CU5 1/23/2019 + + +-- How to determine the version, edition and update level of SQL Server and its components +-- https://bit.ly/2oAjKgW + +-- How to obtain the latest Service Pack for SQL Server 2016 +-- https://bit.ly/2egtfzK + +-- Microsoft SQL Server 2016 SP1 Latest Cumulative Update +-- https://bit.ly/2jTwxWC + +-- SQL Server 2016 build versions +-- https://bit.ly/2epkTDT + +-- Where to find information about the latest SQL Server builds +-- https://bit.ly/2IGHbfY + +-- Performance and Stability Related Fixes in Post-SQL Server 2016 SP1 Builds +-- https://bit.ly/2gr7k9L + +-- Performance and Stability Related Fixes in Post-SQL Server 2016 SP2 Builds +-- https://bit.ly/2K3LoPf + +-- Announcing updates to the SQL Server Incremental Servicing Model (ISM) +-- https://bit.ly/1RzYITz + +-- Update Center for Microsoft SQL Server +-- https://bit.ly/2pZptuQ + +-- Download SQL Server Management Studio (SSMS) +-- https://bit.ly/1OcupT9 + +-- Download and install Azure Data Studio +-- https://bit.ly/2vgke1A + + + +-- Get socket, physical core and logical core count from the SQL Server Error log. (Query 2) (Core Counts) +-- This query might take a few seconds depending on the size of your error log +EXEC sys.xp_readerrorlog 0, 1, N'detected', N'socket'; +------ + +-- This can help you determine the exact core counts used by SQL Server and whether HT is enabled or not +-- It can also help you confirm your SQL Server licensing model +-- Be on the lookout for this message "using 40 logical processors based on SQL Server licensing" +-- (when you have more than 40 logical cores) which means grandfathered Server/CAL licensing +-- This query will return no results if your error log has been recycled since the instance was last started + + + +-- Get selected server properties (Query 3) (Server Properties) +SELECT SERVERPROPERTY('MachineName') AS [MachineName], +SERVERPROPERTY('ServerName') AS [ServerName], +SERVERPROPERTY('InstanceName') AS [Instance], +SERVERPROPERTY('IsClustered') AS [IsClustered], +SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS [ComputerNamePhysicalNetBIOS], +SERVERPROPERTY('Edition') AS [Edition], +SERVERPROPERTY('ProductLevel') AS [ProductLevel], -- What servicing branch (RTM/SP/CU) +SERVERPROPERTY('ProductUpdateLevel') AS [ProductUpdateLevel], -- Within a servicing branch, what CU# is applied +SERVERPROPERTY('ProductVersion') AS [ProductVersion], +SERVERPROPERTY('ProductMajorVersion') AS [ProductMajorVersion], +SERVERPROPERTY('ProductMinorVersion') AS [ProductMinorVersion], +SERVERPROPERTY('ProductBuild') AS [ProductBuild], +SERVERPROPERTY('ProductBuildType') AS [ProductBuildType], -- Is this a GDR or OD hotfix (NULL if on a CU build) +SERVERPROPERTY('ProductUpdateReference') AS [ProductUpdateReference], -- KB article number that is applicable for this build +SERVERPROPERTY('ProcessID') AS [ProcessID], +SERVERPROPERTY('Collation') AS [Collation], +SERVERPROPERTY('IsFullTextInstalled') AS [IsFullTextInstalled], +SERVERPROPERTY('IsIntegratedSecurityOnly') AS [IsIntegratedSecurityOnly], +SERVERPROPERTY('FilestreamConfiguredLevel') AS [FilestreamConfiguredLevel], +SERVERPROPERTY('IsHadrEnabled') AS [IsHadrEnabled], +SERVERPROPERTY('HadrManagerStatus') AS [HadrManagerStatus], +SERVERPROPERTY('InstanceDefaultDataPath') AS [InstanceDefaultDataPath], +SERVERPROPERTY('InstanceDefaultLogPath') AS [InstanceDefaultLogPath], +SERVERPROPERTY('BuildClrVersion') AS [Build CLR Version], +SERVERPROPERTY('IsXTPSupported') AS [IsXTPSupported], +SERVERPROPERTY('IsPolybaseInstalled') AS [IsPolybaseInstalled], -- New for SQL Server 2016 +SERVERPROPERTY('IsAdvancedAnalyticsInstalled') AS [IsRServicesInstalled]; -- New for SQL Server 2016 +------ + +-- This gives you a lot of useful information about your instance of SQL Server, +-- such as the ProcessID for SQL Server and your collation +-- Note: Some columns will be NULL on older SQL Server builds + +-- SERVERPROPERTY (Transact-SQL) +-- https://bit.ly/2eeaXeI + + + +-- Get instance-level configuration values for instance (Query 4) (Configuration Values) +SELECT name, value, value_in_use, minimum, maximum, [description], is_dynamic, is_advanced +FROM sys.configurations WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Focus on these settings: +-- automatic soft-NUMA disabled (should be 0 in most cases) +-- backup checksum default (should be 1) +-- backup compression default (should be 1 in most cases) +-- clr enabled (only enable if it is needed) +-- cost threshold for parallelism (depends on your workload) +-- lightweight pooling (should be zero) +-- max degree of parallelism (depends on your workload and hardware) +-- max server memory (MB) (set to an appropriate value, not the default) +-- optimize for ad hoc workloads (should be 1) +-- priority boost (should be zero) +-- remote admin connections (should be 1) + +-- New configuration options for SQL Server 2016 +-- allow polybase export (Allow INSERT into a Hadoop external table) +-- automatic soft-NUMA disabled (Automatic soft-NUMA is enabled by default) +-- external scripts enabled (Allows execution of external scripts, for R Services) +-- hadoop connectivity (Configure SQL Server to connect to external Hadoop or Microsoft Azure storage blob data sources through PolyBase) +-- polybase network encryption (Configure SQL Server to encrypt control and data channels when using PolyBase) +-- remote data archive (Allow the use of the REMOTE_DATA_ARCHIVE data access for Stretch databases) + +-- SQLSweet16!, Episode 1: Backup Compression for TDE-enabled Databases +-- https://bit.ly/28Rpb2x + + + +-- Returns a list of all global trace flags that are enabled (Query 5) (Global Trace Flags) +DBCC TRACESTATUS (-1); +------ + +-- If no global trace flags are enabled, no results will be returned. +-- It is very useful to know what global trace flags are currently enabled as part of the diagnostic process. + +-- Common trace flags that should be enabled in most cases +-- TF 3226 - Supresses logging of successful database backup messages to the SQL Server Error Log +-- https://bit.ly/2p6MTjS + +-- TF 6534 - Enables use of native code to improve performance with spatial data +-- https://bit.ly/2HrQUpU + +-- The behavior of TF 1117, 1118 are enabled for tempdb in SQL Server 2016 by default +-- SQL 2016 It Just Runs Faster: -T1117 and -T1118 changes for TEMPDB and user databases +-- https://bit.ly/2lbNWxK + +-- The behavior of TF 2371 is enabled by default in SQL Server 2016 and newer (in compat level 130 and higher) + +-- DBCC TRACEON - Trace Flags (Transact-SQL) +-- https://bit.ly/2FuSvPg + +-- Recommended updates and configuration options for SQL Server 2017 and 2016 with high-performance workloads +-- https://bit.ly/2VVRGTY + + + +-- Returns status of instant file initialization (Query 6) (IFI Status) +EXEC sys.xp_readerrorlog 0, 1, N'Database Instant File Initialization'; +------ + +-- Lets you determine whether Instant File Initialization (IFI) is enabled for the instance +-- This should be enabled in the vast majority of cases +-- SQL Server 2016 lets you enable this during the SQL server installation process + +-- Database Instant File Initialization +-- https://bit.ly/2nTX74y + +-- Misconceptions around instant file initialization +-- https://bit.ly/2oBSKgZ + + + +-- SQL Server Process Address space info (Query 7) (Process Memory) +-- (shows whether locked pages is enabled, among other things) +SELECT physical_memory_in_use_kb/1024 AS [SQL Server Memory Usage (MB)], + locked_page_allocations_kb/1024 AS [SQL Server Locked Pages Allocation (MB)], + large_page_allocations_kb/1024 AS [SQL Server Large Pages Allocation (MB)], + page_fault_count, memory_utilization_percentage, available_commit_limit_kb, + process_physical_memory_low, process_virtual_memory_low +FROM sys.dm_os_process_memory WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You want to see 0 for process_physical_memory_low +-- You want to see 0 for process_virtual_memory_low +-- This indicates that you are not under internal memory pressure +-- If locked_page_allocations_kb > 0, then LPIM is enabled + +-- How to enable the "locked pages" feature in SQL Server 2012 +-- https://bit.ly/2F5UjOA + +-- Memory Management Architecture Guide +-- https://bit.ly/2JKkadC + + + +-- SQL Server Services information (Query 8) (SQL Server Services Info) +SELECT servicename, process_id, startup_type_desc, status_desc, +last_startup_time, service_account, is_clustered, cluster_nodename, [filename], +instant_file_initialization_enabled -- New in SQL Server 2016 SP1 +FROM sys.dm_server_services WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Tells you the account being used for the SQL Server Service and the SQL Agent Service +-- Shows the process_id, when they were last started, and their current status +-- Also shows whether you are running on a failover cluster instance, and what node you are running on +-- Also shows whether IFI is enabled + +-- sys.dm_server_services (Transact-SQL) +-- https://bit.ly/2oKa1Un + + +-- Last backup information by database (Query 9) (Last Backup By Database) +SELECT ISNULL(d.[name], bs.[database_name]) AS [Database], d.recovery_model_desc AS [Recovery Model], + d.log_reuse_wait_desc AS [Log Reuse Wait Desc], + MAX(CASE WHEN [type] = 'D' THEN bs.backup_finish_date ELSE NULL END) AS [Last Full Backup], + MAX(CASE WHEN [type] = 'I' THEN bs.backup_finish_date ELSE NULL END) AS [Last Differential Backup], + MAX(CASE WHEN [type] = 'L' THEN bs.backup_finish_date ELSE NULL END) AS [Last Log Backup] +FROM sys.databases AS d WITH (NOLOCK) +LEFT OUTER JOIN msdb.dbo.backupset AS bs WITH (NOLOCK) +ON bs.[database_name] = d.[name] +AND bs.backup_finish_date > GETDATE()- 30 +WHERE d.name <> N'tempdb' +GROUP BY ISNULL(d.[name], bs.[database_name]), d.recovery_model_desc, d.log_reuse_wait_desc, d.[name] +ORDER BY d.recovery_model_desc, d.[name] OPTION (RECOMPILE); +------ + +-- This helps you spot runaway transaction logs and other issues with your backup schedule + + +-- Get SQL Server Agent jobs and Category information (Query 10) (SQL Server Agent Jobs) +SELECT sj.name AS [Job Name], sj.[description] AS [Job Description], SUSER_SNAME(sj.owner_sid) AS [Job Owner], +sj.date_created AS [Date Created], sj.[enabled] AS [Job Enabled], +sj.notify_email_operator_id, sj.notify_level_email, sc.name AS [CategoryName], +s.[enabled] AS [Sched Enabled], js.next_run_date, js.next_run_time +FROM msdb.dbo.sysjobs AS sj WITH (NOLOCK) +INNER JOIN msdb.dbo.syscategories AS sc WITH (NOLOCK) +ON sj.category_id = sc.category_id +LEFT OUTER JOIN msdb.dbo.sysjobschedules AS js WITH (NOLOCK) +ON sj.job_id = js.job_id +LEFT OUTER JOIN msdb.dbo.sysschedules AS s WITH (NOLOCK) +ON js.schedule_id = s.schedule_id +ORDER BY sj.name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent jobs, who owns them and how they are configured +-- Look for Agent jobs that are not owned by sa +-- Look for jobs that have a notify_email_operator_id set to 0 (meaning no operator) +-- Look for jobs that have a notify_level_email set to 0 (meaning no e-mail is ever sent) +-- +-- MSDN sysjobs documentation +-- https://bit.ly/2paDEOP + +-- SQL Server Maintenance Solution +-- https://bit.ly/1pgchQu + + +-- Get SQL Server Agent Alert Information (Query 11) (SQL Server Agent Alerts) +SELECT name, event_source, message_id, severity, [enabled], has_notification, + delay_between_responses, occurrence_count, last_occurrence_date, last_occurrence_time +FROM msdb.dbo.sysalerts WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent Alerts +-- (which are different from SQL Server Agent jobs) +-- Read more about Agent Alerts here: https://bit.ly/2Giz0Xf + + + +-- Windows information (Query 12) (Windows Info) +SELECT windows_release, windows_service_pack_level, + windows_sku, os_language_version +FROM sys.dm_os_windows_info WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Gives you major OS version, Service Pack, Edition, and language info for the operating system +-- 10.0 is either Windows 10 or Windows Server 2016 +-- 6.3 is either Windows 8.1 or Windows Server 2012 R2 +-- 6.2 is either Windows 8 or Windows Server 2012 + + +-- Windows SKU codes +-- 4 is Enterprise Edition +-- 7 is Standard Server Edition +-- 8 is Datacenter Server Edition +-- 10 is Enterprise Server Edition +-- 48 is Professional Edition +-- 161 is Pro for Workstations + +-- 1033 for os_language_version is US-English + +-- SQL Server 2016 requires Windows Server 2012 or newer + +-- Quick-Start Installation of SQL Server 2016 +-- https://bit.ly/2qtxQ3G + +-- Hardware and Software Requirements for Installing SQL Server 2016 +-- https://bit.ly/2JJIUTl + +-- Using SQL Server in Windows 8 and later versions of Windows operating system +-- https://bit.ly/2F7Ax0P + + +-- SQL Server NUMA Node information (Query 13) (SQL Server NUMA Info) +SELECT node_id, node_state_desc, memory_node_id, processor_group, online_scheduler_count, + idle_scheduler_count, active_worker_count, avg_load_balance, resource_monitor_state +FROM sys.dm_os_nodes WITH (NOLOCK) +WHERE node_state_desc <> N'ONLINE DAC' OPTION (RECOMPILE); +------ + +-- Gives you some useful information about the composition and relative load on your NUMA nodes +-- You want to see an equal number of schedulers on each NUMA node +-- Watch out if SQL Server 2016 Standard Edition has been installed +-- on a physical or virtual machine with more than four sockets or more than 24 physical cores + +-- sys.dm_os_nodes (Transact-SQL) +-- https://bit.ly/2pn5Mw8 + +-- Balancing Your Available SQL Server Core Licenses Evenly Across NUMA Nodes +-- https://bit.ly/2vfC4Rq + + + +-- Good basic information about OS memory amounts and state (Query 14) (System Memory) +SELECT total_physical_memory_kb/1024 AS [Physical Memory (MB)], + available_physical_memory_kb/1024 AS [Available Memory (MB)], + total_page_file_kb/1024 AS [Total Page File (MB)], + available_page_file_kb/1024 AS [Available Page File (MB)], + system_cache_kb/1024 AS [System Cache (MB)], + system_memory_state_desc AS [System Memory State] +FROM sys.dm_os_sys_memory WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You want to see "Available physical memory is high" for System Memory State +-- This indicates that you are not under external memory pressure + +-- Possible System Memory State values: +-- Available physical memory is high +-- Physical memory usage is steady +-- Available physical memory is low +-- Available physical memory is running low +-- Physical memory state is transitioning + +-- sys.dm_os_sys_memory (Transact-SQL) +-- https://bit.ly/2pcV0xq + + + +-- You can skip the next two queries if you know you don't have a clustered instance + + +-- Get information about your cluster nodes and their status (Query 15) (Cluster Node Properties) +-- (if your database server is in a failover cluster) +SELECT NodeName, status_description, is_current_owner +FROM sys.dm_os_cluster_nodes WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Knowing which node owns the cluster resources is critical +-- Especially when you are installing Windows or SQL Server updates +-- You will see no results if your instance is not clustered + +-- Recommended hotfixes and updates for Windows Server 2012 R2-based failover clusters +-- https://bit.ly/1z5BfCw + + +-- Get information about any AlwaysOn AG cluster this instance is a part of (Query 16) (AlwaysOn AG Cluster) +SELECT cluster_name, quorum_type_desc, quorum_state_desc +FROM sys.dm_hadr_cluster WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You will see no results if your instance is not using AlwaysOn AGs + + +-- Good overview of AG health and status (Query 17) (AlwaysOn AG Status) +SELECT ag.name AS [AG Name], ar.replica_server_name, ar.availability_mode_desc, adc.[database_name], + drs.is_local, drs.is_primary_replica, drs.synchronization_state_desc, drs.is_commit_participant, + drs.synchronization_health_desc, drs.recovery_lsn, drs.truncation_lsn, drs.last_sent_lsn, + drs.last_sent_time, drs.last_received_lsn, drs.last_received_time, drs.last_hardened_lsn, + drs.last_hardened_time, drs.last_redone_lsn, drs.last_redone_time, drs.log_send_queue_size, + drs.log_send_rate, drs.redo_queue_size, drs.redo_rate, drs.filestream_send_rate, + drs.end_of_log_lsn, drs.last_commit_lsn, drs.last_commit_time, drs.database_state_desc +FROM sys.dm_hadr_database_replica_states AS drs WITH (NOLOCK) +INNER JOIN sys.availability_databases_cluster AS adc WITH (NOLOCK) +ON drs.group_id = adc.group_id +AND drs.group_database_id = adc.group_database_id +INNER JOIN sys.availability_groups AS ag WITH (NOLOCK) +ON ag.group_id = drs.group_id +INNER JOIN sys.availability_replicas AS ar WITH (NOLOCK) +ON drs.group_id = ar.group_id +AND drs.replica_id = ar.replica_id +ORDER BY ag.name, ar.replica_server_name, adc.[database_name] OPTION (RECOMPILE); + +-- You will see no results if your instance is not using AlwaysOn AGs + +-- SQL Server 2016 It Just Runs Faster: Always On Availability Groups Turbocharged +-- https://bit.ly/2dn1H6r + + +-- Hardware information from SQL Server 2016 (Query 18) (Hardware Info) +SELECT cpu_count AS [Logical CPU Count], scheduler_count, + hyperthread_ratio AS [Hyperthread Ratio], + cpu_count/hyperthread_ratio AS [Physical CPU Count], + physical_memory_kb/1024 AS [Physical Memory (MB)], + committed_kb/1024 AS [Committed Memory (MB)], + committed_target_kb/1024 AS [Committed Target Memory (MB)], + max_workers_count AS [Max Workers Count], + affinity_type_desc AS [Affinity Type], + sqlserver_start_time AS [SQL Server Start Time], + DATEDIFF(hour, sqlserver_start_time, GETDATE()) AS [SQL Server Up Time (hrs)], + virtual_machine_type_desc AS [Virtual Machine Type], + softnuma_configuration_desc AS [Soft NUMA Configuration], + sql_memory_model_desc -- New in SQL Server 2016 +FROM sys.dm_os_sys_info WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Gives you some good basic hardware information about your database server +-- Note: virtual_machine_type_desc of HYPERVISOR does not automatically mean you are running SQL Server inside of a VM +-- It merely indicates that you have a hypervisor running on your host + +-- sys.dm_os_sys_info (Transact-SQL) +-- https://bit.ly/2pczOYs + +-- Soft NUMA configuration was a new column for SQL Server 2016 +-- OFF = Soft-NUMA feature is OFF +-- ON = SQL Server automatically determines the NUMA node sizes for Soft-NUMA +-- MANUAL = Manually configured soft-NUMA + +-- Configure SQL Server to Use Soft-NUMA (SQL Server) +-- https://bit.ly/2HTpKJt + +-- sql_memory_model_desc values (Added in SQL Server 2016 SP1) +-- CONVENTIONAL +-- LOCK_PAGES +-- LARGE_PAGES + + +-- Get System Manufacturer and model number from SQL Server Error log (Query 19) (System Manufacturer) +EXEC sys.xp_readerrorlog 0, 1, N'Manufacturer'; +------ + +-- This can help you determine the capabilities and capacities of your database server +-- Can also be used to confirm if you are running in a VM +-- This query might take a few seconds if you have not recycled your error log recently +-- This query will return no results if your error log has been recycled since the instance was started + + +-- Get pvscsi info from Windows Registry (Query 20) (PVSCSI Driver Parameters) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'SYSTEM\CurrentControlSet\services\pvscsi\Parameters\Device', N'DriverParameter'; +------ + +-- This is valid for VMware VMs +-- Recommended value for intensive I/O patterns from VMware is: RequestRingPages=32,MaxQueueDepth=254 +-- https://kb.vmware.com/s/article/2053145 + + + +-- Get BIOS date from Windows Registry (Query 21) (BIOS Date) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\BIOS', N'BiosReleaseDate'; +------ + +-- Helps you understand whether the main system BIOS is up to date, and the possible age of the hardware +-- Not as useful for virtualization + + +-- Get processor description from Windows Registry (Query 22) (Processor Description) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\CentralProcessor\0', N'ProcessorNameString'; +------ + +-- Gives you the model number and rated clock speed of your processor(s) +-- Your processors may be running at less than the rated clock speed due +-- to the Windows Power Plan or hardware power management + +-- You can use CPU-Z to get your actual CPU core speed and a lot of other useful information +-- https://bit.ly/QhR6xF + +-- You can learn more about processor selection for SQL Server by following this link +-- https://bit.ly/2F3aVlP + + + +-- See if buffer pool extension (BPE) is enabled (Query 23) (BPE Configuration) +SELECT [path], state_description, current_size_in_kb, +CAST(current_size_in_kb/1048576.0 AS DECIMAL(10,2)) AS [Size (GB)] +FROM sys.dm_os_buffer_pool_extension_configuration WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- BPE is available in both Standard Edition and Enterprise Edition +-- It is a more interesting feature for Standard Edition + +-- Buffer Pool Extension to SSDs in SQL Server 2014 +-- https://bit.ly/1bm08m8 + +-- Buffer Pool Extension +-- https://bit.ly/2oBuieO + + + +-- Look at buffer descriptors to see BPE usage by database (Query 24) (BPE Usage) +SELECT DB_NAME(database_id) AS [Database Name], COUNT(page_id) AS [Page Count], +CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], +AVG(read_microsec) AS [Avg Read Time (microseconds)] +FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) +WHERE database_id <> 32767 +AND is_in_bpool_extension = 1 +GROUP BY DB_NAME(database_id) +ORDER BY [Buffer size(MB)] DESC OPTION (RECOMPILE); +------ + +-- You will see no results if BPE is not enabled or if there is no BPE usage + + +-- Get information on location, time and size of any memory dumps from SQL Server (Query 25) (Memory Dump Info) +SELECT [filename], creation_time, size_in_bytes/1048576.0 AS [Size (MB)] +FROM sys.dm_server_memory_dumps WITH (NOLOCK) +ORDER BY creation_time DESC OPTION (RECOMPILE); +------ + +-- This will not return any rows if you have +-- not had any memory dumps (which is a good thing) + +-- sys.dm_server_memory_dumps (Transact-SQL) +-- https://bit.ly/2elwWll + + + +-- Look at Suspect Pages table (Query 26) (Suspect Pages) +SELECT DB_NAME(database_id) AS [Database Name], [file_id], page_id, + event_type, error_count, last_update_date +FROM msdb.dbo.suspect_pages WITH (NOLOCK) +ORDER BY database_id OPTION (RECOMPILE); +------ + +-- event_type value descriptions +-- 1 = 823 error caused by an operating system CRC error +-- or 824 error other than a bad checksum or a torn page (for example, a bad page ID) +-- 2 = Bad checksum +-- 3 = Torn page +-- 4 = Restored (The page was restored after it was marked bad) +-- 5 = Repaired (DBCC repaired the page) +-- 7 = Deallocated by DBCC + +-- Ideally, this query returns no results. The table is limited to 1000 rows. +-- If you do get results here, you should do further investigation to determine the root cause + +-- Manage the suspect_pages Table +-- https://bit.ly/2Fvr1c9 + + +-- Get number of data files in tempdb database (Query 27) (TempDB Data Files) +EXEC sys.xp_readerrorlog 0, 1, N'The tempdb database has'; +------ + +-- Get the number of data files in the tempdb database +-- 4-8 data files that are all the same size is a good starting point +-- This query will return no results if your error log has been recycled since the instance was last started + + +-- File names and paths for all user and system databases on instance (Query 28) (Database Filenames and Paths) +SELECT DB_NAME([database_id]) AS [Database Name], + [file_id], [name], physical_name, [type_desc], state_desc, + is_percent_growth, growth, + CONVERT(bigint, growth/128.0) AS [Growth in MB], + CONVERT(bigint, size/128.0) AS [Total Size in MB] +FROM sys.master_files WITH (NOLOCK) +ORDER BY DB_NAME([database_id]), [file_id] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- Are data files and log files on different drives? +-- Is everything on the C: drive? +-- Is tempdb on dedicated drives? +-- Is there only one tempdb data file? +-- Are all of the tempdb data files the same size? +-- Are there multiple data files for user databases? +-- Is percent growth enabled for any files (which is bad)? + + +-- Volume info for all LUNS that have database files on the current instance (Query 29) (Volume Info) +SELECT DISTINCT vs.volume_mount_point, vs.file_system_type, vs.logical_volume_name, +CONVERT(DECIMAL(18,2), vs.total_bytes/1073741824.0) AS [Total Size (GB)], +CONVERT(DECIMAL(18,2), vs.available_bytes/1073741824.0) AS [Available Size (GB)], +CONVERT(DECIMAL(18,2), vs.available_bytes * 1. / vs.total_bytes * 100.) AS [Space Free %], +vs.supports_compression, vs.is_compressed, +vs.supports_sparse_files, vs.supports_alternate_streams +FROM sys.master_files AS f WITH (NOLOCK) +CROSS APPLY sys.dm_os_volume_stats(f.database_id, f.[file_id]) AS vs +ORDER BY vs.volume_mount_point OPTION (RECOMPILE); +------ + +-- Shows you the total and free space on the LUNs where you have database files +-- Being low on free space can negatively affect performance + +-- sys.dm_os_volume_stats (Transact-SQL) +-- https://bit.ly/2oBPNNr + + + +-- Drive level latency information (Query 30) (Drive Level Latency) +-- Based on code from Jimmy May +SELECT tab.[Drive], tab.volume_mount_point AS [Volume Mount Point], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (io_stall_read_ms/num_of_reads) + END AS [Read Latency], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (io_stall_write_ms/num_of_writes) + END AS [Write Latency], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE (io_stall/(num_of_reads + num_of_writes)) + END AS [Overall Latency], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (num_of_bytes_read/num_of_reads) + END AS [Avg Bytes/Read], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (num_of_bytes_written/num_of_writes) + END AS [Avg Bytes/Write], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE ((num_of_bytes_read + num_of_bytes_written)/(num_of_reads + num_of_writes)) + END AS [Avg Bytes/Transfer] +FROM (SELECT LEFT(UPPER(mf.physical_name), 2) AS Drive, SUM(num_of_reads) AS num_of_reads, + SUM(io_stall_read_ms) AS io_stall_read_ms, SUM(num_of_writes) AS num_of_writes, + SUM(io_stall_write_ms) AS io_stall_write_ms, SUM(num_of_bytes_read) AS num_of_bytes_read, + SUM(num_of_bytes_written) AS num_of_bytes_written, SUM(io_stall) AS io_stall, vs.volume_mount_point + FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS vfs + INNER JOIN sys.master_files AS mf WITH (NOLOCK) + ON vfs.database_id = mf.database_id AND vfs.file_id = mf.file_id + CROSS APPLY sys.dm_os_volume_stats(mf.database_id, mf.[file_id]) AS vs + GROUP BY LEFT(UPPER(mf.physical_name), 2), vs.volume_mount_point) AS tab +ORDER BY [Overall Latency] OPTION (RECOMPILE); +------ + +-- Shows you the drive-level latency for reads and writes, in milliseconds +-- Latency above 30-40ms is usually a problem +-- These latency numbers include all file activity against all SQL Server +-- database files on each drive since SQL Server was last started + + +-- Calculates average stalls per read, per write, and per total input/output for each database file (Query 31) (IO Latency by File) +SELECT DB_NAME(fs.database_id) AS [Database Name], CAST(fs.io_stall_read_ms/(1.0 + fs.num_of_reads) AS NUMERIC(10,1)) AS [avg_read_latency_ms], +CAST(fs.io_stall_write_ms/(1.0 + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_write_latency_ms], +CAST((fs.io_stall_read_ms + fs.io_stall_write_ms)/(1.0 + fs.num_of_reads + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_io_latency_ms], +CONVERT(DECIMAL(18,2), mf.size/128.0) AS [File Size (MB)], mf.physical_name, mf.type_desc, fs.io_stall_read_ms, fs.num_of_reads, +fs.io_stall_write_ms, fs.num_of_writes, fs.io_stall_read_ms + fs.io_stall_write_ms AS [io_stalls], fs.num_of_reads + fs.num_of_writes AS [total_io], +io_stall_queued_read_ms AS [Resource Governor Total Read IO Latency (ms)], io_stall_queued_write_ms AS [Resource Governor Total Write IO Latency (ms)] +FROM sys.dm_io_virtual_file_stats(null,null) AS fs +INNER JOIN sys.master_files AS mf WITH (NOLOCK) +ON fs.database_id = mf.database_id +AND fs.[file_id] = mf.[file_id] +ORDER BY avg_io_latency_ms DESC OPTION (RECOMPILE); +------ + +-- Helps determine which database files on the entire instance have the most I/O bottlenecks +-- This can help you decide whether certain LUNs are overloaded and whether you might +-- want to move some files to a different location or perhaps improve your I/O performance +-- These latency numbers include all file activity against each SQL Server +-- database file since SQL Server was last started + + +-- Look for I/O requests taking longer than 15 seconds in the six most recent SQL Server Error Logs (Query 32) (IO Warnings) +CREATE TABLE #IOWarningResults(LogDate datetime, ProcessInfo sysname, LogText nvarchar(1000)); + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 0, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 1, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 2, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 3, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 4, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 5, 1, N'taking longer than 15 seconds'; + +SELECT LogDate, ProcessInfo, LogText +FROM #IOWarningResults +ORDER BY LogDate DESC; + +DROP TABLE #IOWarningResults; +------ + +-- Finding 15 second I/O warnings in the SQL Server Error Log is useful evidence of +-- poor I/O performance (which might have many different causes) +-- Look to see if you see any patterns in the results (same files, same drives, same time of day, etc.) + +-- Diagnostics in SQL Server help detect stalled and stuck I/O operations +-- https://bit.ly/2qtaw73 + + +-- Resource Governor Resource Pool information (Query 33) (RG Resource Pools) +SELECT pool_id, [Name], statistics_start_time, + min_memory_percent, max_memory_percent, + max_memory_kb/1024 AS [max_memory_mb], + used_memory_kb/1024 AS [used_memory_mb], + target_memory_kb/1024 AS [target_memory_mb], + min_iops_per_volume, max_iops_per_volume +FROM sys.dm_resource_governor_resource_pools WITH (NOLOCK) +OPTION (RECOMPILE); +------ + +-- sys.dm_resource_governor_resource_pools (Transact-SQL) +-- https://bit.ly/2MVU0Vy + + + +-- Recovery model, log reuse wait description, log file size, log usage size (Query 34) (Database Properties) +-- and compatibility level for all databases on instance +SELECT db.[name] AS [Database Name], SUSER_SNAME(db.owner_sid) AS [Database Owner], db.recovery_model_desc AS [Recovery Model], +db.state_desc, db.containment_desc, db.log_reuse_wait_desc AS [Log Reuse Wait Description], +CONVERT(DECIMAL(18,2), ls.cntr_value/1024.0) AS [Log Size (MB)], CONVERT(DECIMAL(18,2), lu.cntr_value/1024.0) AS [Log Used (MB)], +CAST(CAST(lu.cntr_value AS FLOAT) / CAST(ls.cntr_value AS FLOAT)AS DECIMAL(18,2)) * 100 AS [Log Used %], +db.[compatibility_level] AS [DB Compatibility Level], +db.is_mixed_page_allocation_on, db.page_verify_option_desc AS [Page Verify Option], +db.is_auto_create_stats_on, db.is_auto_update_stats_on, db.is_auto_update_stats_async_on, db.is_parameterization_forced, +db.snapshot_isolation_state_desc, db.is_read_committed_snapshot_on, db.is_auto_close_on, db.is_auto_shrink_on, +db.target_recovery_time_in_seconds, db.is_cdc_enabled, db.is_published, db.is_distributor, db.is_encrypted, +db.group_database_id, db.replica_id,db.is_memory_optimized_elevate_to_snapshot_on, +db.delayed_durability_desc, db.is_auto_create_stats_incremental_on, +db.is_query_store_on, db.is_sync_with_backup, +db.is_supplemental_logging_enabled, db.is_remote_data_archive_enabled, +db.is_encrypted, de.encryption_state, de.percent_complete, de.key_algorithm, de.key_length +FROM sys.databases AS db WITH (NOLOCK) +INNER JOIN sys.dm_os_performance_counters AS lu WITH (NOLOCK) +ON db.name = lu.instance_name +INNER JOIN sys.dm_os_performance_counters AS ls WITH (NOLOCK) +ON db.name = ls.instance_name +LEFT OUTER JOIN sys.dm_database_encryption_keys AS de WITH (NOLOCK) +ON db.database_id = de.database_id +WHERE lu.counter_name LIKE N'Log File(s) Used Size (KB)%' +AND ls.counter_name LIKE N'Log File(s) Size (KB)%' +AND ls.cntr_value > 0 +ORDER BY db.[name] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- How many databases are on the instance? +-- What recovery models are they using? +-- What is the log reuse wait description? +-- How full are the transaction logs? +-- What compatibility level are the databases on? +-- What is the Page Verify Option? (should be CHECKSUM) +-- Is Auto Update Statistics Asynchronously enabled? +-- Is Delayed Durability enabled +-- Make sure auto_shrink and auto_close are not enabled! + +-- is_mixed_page_allocation_on is a new property for SQL Server 2016. Equivalent to TF 1118 for a user database +-- SQL Server 2016: Changes in default behavior for autogrow and allocations for tempdb and user databases +-- https://bit.ly/2evRZSR + +-- A non-zero value for target_recovery_time_in_seconds means that indirect checkpoint is enabled +-- If the setting has a zero value it indicates that automatic checkpoint is enabled + +-- Changes in SQL Server 2016 Checkpoint Behavior +-- https://bit.ly/2pdggk3 + + +-- Missing Indexes for all databases by Index Advantage (Query 35) (Missing Indexes All Databases) +SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +FORMAT(migs.last_user_seek, 'yyyy-MM-dd HH:mm:ss') AS [last_user_seek], +mid.[statement] AS [Database.Schema.Table], +COUNT(1) OVER(PARTITION BY mid.[statement]) AS [missing_indexes_for_table], +COUNT(1) OVER(PARTITION BY mid.[statement], equality_columns) AS [similar_missing_indexes_for_table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, +CONVERT(decimal(18,2), migs.avg_total_user_cost) AS [avg_total_user_cost], migs.avg_user_impact +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Getting missing index information for all of the databases on the instance is very useful +-- Look at last user seek time, number of user seeks to help determine source and importance +-- Also look at avg_user_impact and avg_total_user_cost to help determine importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + +-- SQL Server Index Design Guide +-- https://bit.ly/2qtZr4N + + + +-- Get VLF Counts for all databases on the instance (Query 36) (VLF Counts) +-- (adapted from Michelle Ufford) +CREATE TABLE #VLFInfo (RecoveryUnitID int, FileID int, + FileSize bigint, StartOffset bigint, + FSeqNo bigint, [Status] bigint, + Parity bigint, CreateLSN numeric(38)); + +CREATE TABLE #VLFCountResults(DatabaseName sysname, VLFCount int); + +EXEC sp_MSforeachdb N'Use [?]; + + INSERT INTO #VLFInfo + EXEC sp_executesql N''DBCC LOGINFO([?])''; + + INSERT INTO #VLFCountResults + SELECT DB_NAME(), COUNT(*) + FROM #VLFInfo; + + TRUNCATE TABLE #VLFInfo;' + +SELECT DatabaseName, VLFCount +FROM #VLFCountResults +ORDER BY VLFCount DESC; + +DROP TABLE #VLFInfo; +DROP TABLE #VLFCountResults; +------ + +-- High VLF counts can affect write performance to the log file +-- and they can make full database restores and crash recovery take much longer +-- Try to keep your VLF counts under 200 in most cases (depending on log file size) + +-- Important change to VLF creation algorithm in SQL Server 2014 +-- https://bit.ly/2Hsjbg4 + +-- SQL Server Transaction Log Architecture and Management Guide +-- https://bit.ly/2JjmQRZ + + + + +-- Get CPU utilization by database (Query 37) (CPU Usage by Database) +WITH DB_CPU_Stats +AS +(SELECT pa.DatabaseID, DB_Name(pa.DatabaseID) AS [Database Name], SUM(qs.total_worker_time/1000) AS [CPU_Time_Ms] + FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) + CROSS APPLY (SELECT CONVERT(int, value) AS [DatabaseID] + FROM sys.dm_exec_plan_attributes(qs.plan_handle) + WHERE attribute = N'dbid') AS pa + GROUP BY DatabaseID) +SELECT ROW_NUMBER() OVER(ORDER BY [CPU_Time_Ms] DESC) AS [CPU Rank], + [Database Name], [CPU_Time_Ms] AS [CPU Time (ms)], + CAST([CPU_Time_Ms] * 1.0 / SUM([CPU_Time_Ms]) OVER() * 100.0 AS DECIMAL(5, 2)) AS [CPU Percent] +FROM DB_CPU_Stats +WHERE DatabaseID <> 32767 -- ResourceDB +ORDER BY [CPU Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most CPU resources on the instance +-- Note: This only reflects CPU usage from the currently cached query plans + + +-- Get I/O utilization by database (Query 38) (IO Usage By Database) +WITH Aggregate_IO_Statistics +AS (SELECT DB_NAME(database_id) AS [Database Name], + CAST(SUM(num_of_bytes_read + num_of_bytes_written) / 1048576 AS DECIMAL(12, 2)) AS [ioTotalMB], + CAST(SUM(num_of_bytes_read ) / 1048576 AS DECIMAL(12, 2)) AS [ioReadMB], + CAST(SUM(num_of_bytes_written) / 1048576 AS DECIMAL(12, 2)) AS [ioWriteMB] + FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS [DM_IO_STATS] + GROUP BY database_id) +SELECT ROW_NUMBER() OVER (ORDER BY ioTotalMB DESC) AS [I/O Rank], + [Database Name], ioTotalMB AS [Total I/O (MB)], + CAST(ioTotalMB / SUM(ioTotalMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Total I/O %], + ioReadMB AS [Read I/O (MB)], + CAST(ioReadMB / SUM(ioReadMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Read I/O %], + ioWriteMB AS [Write I/O (MB)], + CAST(ioWriteMB / SUM(ioWriteMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Write I/O %] +FROM Aggregate_IO_Statistics +ORDER BY [I/O Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most I/O resources on the instance +-- These numbers are cumulative since the last service restart +-- They include all I/O activity, not just the nominal I/O workload + + +-- Get total buffer usage by database for current instance (Query 39) (Total Buffer Usage by Database) +-- This make take some time to run on a busy instance +WITH AggregateBufferPoolUsage +AS +(SELECT DB_NAME(database_id) AS [Database Name], +CAST(COUNT(*) * 8/1024.0 AS DECIMAL (10,2)) AS [CachedSize] +FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) +WHERE database_id <> 32767 -- ResourceDB +GROUP BY DB_NAME(database_id)) +SELECT ROW_NUMBER() OVER(ORDER BY CachedSize DESC) AS [Buffer Pool Rank], [Database Name], CachedSize AS [Cached Size (MB)], + CAST(CachedSize / SUM(CachedSize) OVER() * 100.0 AS DECIMAL(5,2)) AS [Buffer Pool Percent] +FROM AggregateBufferPoolUsage +ORDER BY [Buffer Pool Rank] OPTION (RECOMPILE); +------ + +-- Tells you how much memory (in the buffer pool) +-- is being used by each database on the instance + + +-- Clear Wait Stats with this command +-- DBCC SQLPERF('sys.dm_os_wait_stats', CLEAR); + +-- Isolate top waits for server instance since last restart or wait statistics clear (Query 40) (Top Waits) +WITH [Waits] +AS (SELECT wait_type, wait_time_ms/ 1000.0 AS [WaitS], + (wait_time_ms - signal_wait_time_ms) / 1000.0 AS [ResourceS], + signal_wait_time_ms / 1000.0 AS [SignalS], + waiting_tasks_count AS [WaitCount], + 100.0 * wait_time_ms / SUM (wait_time_ms) OVER() AS [Percentage], + ROW_NUMBER() OVER(ORDER BY wait_time_ms DESC) AS [RowNum] + FROM sys.dm_os_wait_stats WITH (NOLOCK) + WHERE [wait_type] NOT IN ( + N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', + N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', + N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', + N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', + N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', + N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', + N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', + N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', + N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', + N'MEMORY_ALLOCATION_EXT', N'ONDEMAND_TASK_QUEUE', + N'PARALLEL_REDO_DRAIN_WORKER', N'PARALLEL_REDO_LOG_CACHE', N'PARALLEL_REDO_TRAN_LIST', + N'PARALLEL_REDO_WORKER_SYNC', N'PARALLEL_REDO_WORKER_WAIT_WORK', + N'PREEMPTIVE_HADR_LEASE_MECHANISM', N'PREEMPTIVE_SP_SERVER_DIAGNOSTICS', + N'PREEMPTIVE_OS_LIBRARYOPS', N'PREEMPTIVE_OS_COMOPS', N'PREEMPTIVE_OS_CRYPTOPS', + N'PREEMPTIVE_OS_PIPEOPS', N'PREEMPTIVE_OS_AUTHENTICATIONOPS', + N'PREEMPTIVE_OS_GENERICOPS', N'PREEMPTIVE_OS_VERIFYTRUST', + N'PREEMPTIVE_OS_FILEOPS', N'PREEMPTIVE_OS_DEVICEOPS', N'PREEMPTIVE_OS_QUERYREGISTRY', + N'PREEMPTIVE_OS_WRITEFILE', + N'PREEMPTIVE_XE_CALLBACKEXECUTE', N'PREEMPTIVE_XE_DISPATCHER', + N'PREEMPTIVE_XE_GETTARGETSTATE', N'PREEMPTIVE_XE_SESSIONCOMMIT', + N'PREEMPTIVE_XE_TARGETINIT', N'PREEMPTIVE_XE_TARGETFINALIZE', + N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'PWAIT_DIRECTLOGCONSUMER_GETNEXT', + N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', + N'QDS_ASYNC_QUEUE', + N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', + N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', + N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', + N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', + N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', + N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', + N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', + N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'WAIT_XTP_RECOVERY', + N'XE_BUFFERMGR_ALLPROCESSED_EVENT', N'XE_DISPATCHER_JOIN', + N'XE_DISPATCHER_WAIT', N'XE_LIVE_TARGET_TVF', N'XE_TIMER_EVENT') + AND waiting_tasks_count > 0) +SELECT + MAX (W1.wait_type) AS [WaitType], + CAST (MAX (W1.Percentage) AS DECIMAL (5,2)) AS [Wait Percentage], + CAST ((MAX (W1.WaitS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgWait_Sec], + CAST ((MAX (W1.ResourceS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgRes_Sec], + CAST ((MAX (W1.SignalS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgSig_Sec], + CAST (MAX (W1.WaitS) AS DECIMAL (16,2)) AS [Wait_Sec], + CAST (MAX (W1.ResourceS) AS DECIMAL (16,2)) AS [Resource_Sec], + CAST (MAX (W1.SignalS) AS DECIMAL (16,2)) AS [Signal_Sec], + MAX (W1.WaitCount) AS [Wait Count], + CAST (N'https://www.sqlskills.com/help/waits/' + W1.wait_type AS XML) AS [Help/Info URL] +FROM Waits AS W1 +INNER JOIN Waits AS W2 +ON W2.RowNum <= W1.RowNum +GROUP BY W1.RowNum, W1.wait_type +HAVING SUM (W2.Percentage) - MAX (W1.Percentage) < 99 -- percentage threshold +OPTION (RECOMPILE); +------ + +-- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure + +-- SQL Server Wait Types Library (Paul Randal) +-- https://bit.ly/2ePzYO2 + +-- The SQL Server Wait Type Repository +-- https://bit.ly/1afzfjC + +-- Wait statistics, or please tell me where it hurts +-- https://bit.ly/2wsQHQE + +-- SQL Server 2005 Performance Tuning using the Waits and Queues +-- https://bit.ly/1o2NFoF + +-- sys.dm_os_wait_stats (Transact-SQL) +-- https://bit.ly/2Hjq9Yl + + + +-- Get a count of SQL connections by IP address (Query 41) (Connection Counts by IP Address) +SELECT ec.client_net_address, es.[program_name], es.[host_name], es.login_name, +COUNT(ec.session_id) AS [connection count] +FROM sys.dm_exec_sessions AS es WITH (NOLOCK) +INNER JOIN sys.dm_exec_connections AS ec WITH (NOLOCK) +ON es.session_id = ec.session_id +GROUP BY ec.client_net_address, es.[program_name], es.[host_name], es.login_name +ORDER BY ec.client_net_address, es.[program_name] OPTION (RECOMPILE); +------ + +-- This helps you figure where your database load is coming from +-- and verifies connectivity from other machines + +-- Solving Connectivity errors to SQL Server +-- https://bit.ly/2EgzoD0 + + + +-- Get Average Task Counts (run multiple times) (Query 42) (Avg Task Counts) +SELECT AVG(current_tasks_count) AS [Avg Task Count], +AVG(work_queue_count) AS [Avg Work Queue Count], +AVG(runnable_tasks_count) AS [Avg Runnable Task Count], +AVG(pending_disk_io_count) AS [Avg Pending DiskIO Count] +FROM sys.dm_os_schedulers WITH (NOLOCK) +WHERE scheduler_id < 255 OPTION (RECOMPILE); +------ + +-- Sustained values above 10 suggest further investigation in that area +-- High Avg Task Counts are often caused by blocking/deadlocking or other resource contention + +-- Sustained values above 1 suggest further investigation in that area +-- High Avg Runnable Task Counts are a good sign of CPU pressure +-- High Avg Pending DiskIO Counts are a sign of disk pressure + +-- How to Do Some Very Basic SQL Server Monitoring +-- https://bit.ly/2q3Btgt + + + +-- Detect blocking (run multiple times) (Query 43) (Detect Blocking) +SELECT t1.resource_type AS [lock type], DB_NAME(resource_database_id) AS [database], +t1.resource_associated_entity_id AS [blk object],t1.request_mode AS [lock req], -- lock requested +t1.request_session_id AS [waiter sid], t2.wait_duration_ms AS [wait time], -- spid of waiter +(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK) -- get sql for waiter +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) +WHERE r.session_id = t1.request_session_id) AS [waiter_batch], +(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, + (CASE WHEN r.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE r.statement_end_offset END - r.statement_start_offset)/2) +FROM sys.dm_exec_requests AS r WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt +WHERE r.session_id = t1.request_session_id) AS [waiter_stmt], -- statement blocked +t2.blocking_session_id AS [blocker sid], -- spid of blocker +(SELECT [text] FROM sys.sysprocesses AS p -- get sql for blocker +CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) +WHERE p.spid = t2.blocking_session_id) AS [blocker_batch] +FROM sys.dm_tran_locks AS t1 WITH (NOLOCK) +INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK) +ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE); +------ + +-- Helps troubleshoot blocking and deadlocking issues +-- The results will change from second to second on a busy system +-- You should run this query multiple times when you see signs of blocking + + + +-- Get CPU Utilization History for last 256 minutes (in one minute intervals) (Query 44) (CPU Utilization History) +DECLARE @ts_now bigint = (SELECT cpu_ticks/(cpu_ticks/ms_ticks) FROM sys.dm_os_sys_info WITH (NOLOCK)); + +SELECT TOP(256) SQLProcessUtilization AS [SQL Server Process CPU Utilization], + SystemIdle AS [System Idle Process], + 100 - SystemIdle - SQLProcessUtilization AS [Other Process CPU Utilization], + DATEADD(ms, -1 * (@ts_now - [timestamp]), GETDATE()) AS [Event Time] +FROM (SELECT record.value('(./Record/@id)[1]', 'int') AS record_id, + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') + AS [SystemIdle], + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', 'int') + AS [SQLProcessUtilization], [timestamp] + FROM (SELECT [timestamp], CONVERT(xml, record) AS [record] + FROM sys.dm_os_ring_buffers WITH (NOLOCK) + WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' + AND record LIKE N'%%') AS x) AS y +ORDER BY record_id DESC OPTION (RECOMPILE); +------ + +-- Look at the trend over the entire period +-- Also look at high sustained 'Other Process' CPU Utilization values +-- Note: This query sometimes gives inaccurate results (negative values) +-- on high core count (> 64 cores) systems + + +-- Get top total worker time queries for entire instance (Query 45) (Top Worker Time Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_worker_time AS [Total Worker Time], qs.min_worker_time AS [Min Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.max_worker_time AS [Max Worker Time], +qs.min_elapsed_time AS [Min Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.max_elapsed_time AS [Max Elapsed Time], +qs.min_logical_reads AS [Min Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.max_logical_reads AS [Max Logical Reads], +qs.execution_count AS [Execution Count], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + + +-- Helps you find the most expensive queries from a CPU perspective across the entire instance +-- Can also help track down parameter sniffing issues + + + +-- Page Life Expectancy (PLE) value for each NUMA node in current instance (Query 46) (PLE by NUMA Node) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], instance_name, cntr_value AS [Page Life Expectancy] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Buffer Node%' -- Handles named instances +AND counter_name = N'Page life expectancy' OPTION (RECOMPILE); +------ + +-- PLE is a good measurement of internal memory pressure +-- Higher PLE is better. Watch the trend over time, not the absolute value +-- This will only return one row for non-NUMA systems + +-- Page Life Expectancy isnt what you think +-- https://bit.ly/2EgynLa + + +-- Memory Grants Pending value for current instance (Query 47) (Memory Grants Pending) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], cntr_value AS [Memory Grants Pending] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Memory Manager%' -- Handles named instances +AND counter_name = N'Memory Grants Pending' OPTION (RECOMPILE); +------ + +-- Run multiple times, and run periodically if you suspect you are under memory pressure +-- Memory Grants Pending above zero for a sustained period is a very strong indicator of internal memory pressure + + +-- Memory Clerk Usage for instance (Query 48) (Memory Clerk Usage) +-- Look for high value for CACHESTORE_SQLCP (Ad-hoc query plans) +SELECT TOP(10) mc.[type] AS [Memory Clerk Type], + CAST((SUM(mc.pages_kb)/1024.0) AS DECIMAL (15,2)) AS [Memory Usage (MB)] +FROM sys.dm_os_memory_clerks AS mc WITH (NOLOCK) +GROUP BY mc.[type] +ORDER BY SUM(mc.pages_kb) DESC OPTION (RECOMPILE); +------ + +-- MEMORYCLERK_SQLBUFFERPOOL was new for SQL Server 2012. It should be your highest consumer of memory + +-- CACHESTORE_SQLCP SQL Plans +-- These are cached SQL statements or batches that aren't in stored procedures, functions and triggers +-- Watch out for high values for CACHESTORE_SQLCP +-- Enabling 'optimize for ad hoc workloads' at the instance level can help reduce this +-- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this + +-- CACHESTORE_OBJCP Object Plans +-- These are compiled plans for stored procedures, functions and triggers + + + +-- Find single-use, ad-hoc and prepared queries that are bloating the plan cache (Query 49) (Ad hoc Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], t.[text] AS [Query Text], +cp.objtype AS [Object Type], cp.cacheobjtype AS [Cache Object Type], +cp.size_in_bytes/1024 AS [Plan Size in KB] +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +WHERE cp.cacheobjtype = N'Compiled Plan' +AND cp.objtype IN (N'Adhoc', N'Prepared') +AND cp.usecounts = 1 +ORDER BY cp.size_in_bytes DESC, DB_NAME(t.[dbid]) OPTION (RECOMPILE); +------ + +-- Gives you the text, type and size of single-use ad-hoc and prepared queries that waste space in the plan cache +-- Enabling 'optimize for ad hoc workloads' for the instance can help (SQL Server 2008 and above only) +-- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this +-- Enabling forced parameterization for the database can help, but test first! + +-- Plan cache, adhoc workloads and clearing the single-use plan cache bloat +-- https://bit.ly/2EfYOkl + + +-- Get top total logical reads queries for entire instance (Query 50) (Top Logical Reads Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_logical_reads AS [Total Logical Reads], +qs.min_logical_reads AS [Min Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.max_logical_reads AS [Max Logical Reads], +qs.min_worker_time AS [Min Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.max_worker_time AS [Max Worker Time], +qs.min_elapsed_time AS [Min Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.max_elapsed_time AS [Max Elapsed Time], +qs.execution_count AS [Execution Count], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + + +-- Helps you find the most expensive queries from a memory perspective across the entire instance +-- Can also help track down parameter sniffing issues + + +-- Get top average elapsed time queries for entire instance (Query 51) (Top Avg Elapsed Time Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.min_elapsed_time, qs.max_elapsed_time, qs.last_elapsed_time, +qs.execution_count AS [Execution Count], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.total_physical_reads/qs.execution_count AS [Avg Physical Reads], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_elapsed_time/qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Helps you find the highest average elapsed time queries across the entire instance +-- Can also help track down parameter sniffing issues + + +-- Look at UDF execution statistics (Query 52) (UDF Stats by DB) +SELECT TOP (25) DB_NAME(database_id) AS [Database Name], + OBJECT_NAME(object_id, database_id) AS [Function Name], + total_worker_time, execution_count, total_elapsed_time, + total_elapsed_time/execution_count AS [avg_elapsed_time], + last_elapsed_time, last_execution_time, cached_time +FROM sys.dm_exec_function_stats WITH (NOLOCK) +ORDER BY total_worker_time DESC OPTION (RECOMPILE); +------ + +-- sys.dm_exec_function_stats (Transact-SQL) +-- https://bit.ly/2q1Q6BM + +-- Showplan Enhancements for UDFs +-- https://bit.ly/2LVqiQ1 + + +-- Database specific queries ***************************************************************** + +-- **** Please switch to a user database that you are interested in! ***** +--USE YourDatabaseName; -- make sure to change to an actual database on your instance, not the master system database +--GO + +-- Individual File Sizes and space available for current database (Query 53) (File Sizes and Space) +SELECT f.name AS [File Name] , f.physical_name AS [Physical Name], +CAST((f.size/128.0) AS DECIMAL(15,2)) AS [Total Size in MB], +CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) +AS [Available Space In MB], f.[file_id], fg.name AS [Filegroup Name], +f.is_percent_growth, f.growth, fg.is_default, fg.is_read_only, +fg.is_autogrow_all_files -- New in SQL Server 2016 +FROM sys.database_files AS f WITH (NOLOCK) +LEFT OUTER JOIN sys.filegroups AS fg WITH (NOLOCK) +ON f.data_space_id = fg.data_space_id +ORDER BY f.[file_id] OPTION (RECOMPILE); +------ + +-- Look at how large and how full the files are and where they are located +-- Make sure the transaction log is not full!! + +-- is_autogrow_all_files is new for SQL Server 2016. Equivalent to TF 1117 for user databases + +-- SQL Server 2016: Changes in default behavior for autogrow and allocations for tempdb and user databases +-- https://bit.ly/2evRZSR + + +-- Log space usage for current database (Query 54) (Log Space Usage) +SELECT DB_NAME(lsu.database_id) AS [Database Name], db.recovery_model_desc AS [Recovery Model], + CAST(lsu.total_log_size_in_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Total Log Space (MB)], + CAST(lsu.used_log_space_in_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Used Log Space (MB)], + CAST(lsu.used_log_space_in_percent AS DECIMAL(10, 2)) AS [Used Log Space %], + CAST(lsu.log_space_in_bytes_since_last_backup/1048576.0 AS DECIMAL(10, 2)) AS [Used Log Space Since Last Backup (MB)], + db.log_reuse_wait_desc +FROM sys.dm_db_log_space_usage AS lsu WITH (NOLOCK) +INNER JOIN sys.databases AS db WITH (NOLOCK) +ON lsu.database_id = db.database_id +OPTION (RECOMPILE); +------ + +-- Look at log file size and usage, along with the log reuse wait description for the current database + + + +-- Get database scoped configuration values for current database (Query 55) (Database-scoped Configurations) +SELECT configuration_id, name, [value] AS [value_for_primary], value_for_secondary +FROM sys.database_scoped_configurations WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- This lets you see the value of these new properties for the current database + +-- Clear plan cache for current database +-- ALTER DATABASE SCOPED CONFIGURATION CLEAR PROCEDURE_CACHE; + +-- ALTER DATABASE SCOPED CONFIGURATION (Transact-SQL) +-- https://bit.ly/2sOH7nb + + +-- I/O Statistics by file for the current database (Query 56) (IO Stats By File) +SELECT DB_NAME(DB_ID()) AS [Database Name], df.name AS [Logical Name], vfs.[file_id], df.type_desc, +df.physical_name AS [Physical Name], CAST(vfs.size_on_disk_bytes/1048576.0 AS DECIMAL(16, 2)) AS [Size on Disk (MB)], +vfs.num_of_reads, vfs.num_of_writes, vfs.io_stall_read_ms, vfs.io_stall_write_ms, +CAST(100. * vfs.io_stall_read_ms/(vfs.io_stall_read_ms + vfs.io_stall_write_ms) AS DECIMAL(16,1)) AS [IO Stall Reads Pct], +CAST(100. * vfs.io_stall_write_ms/(vfs.io_stall_write_ms + vfs.io_stall_read_ms) AS DECIMAL(16,1)) AS [IO Stall Writes Pct], +(vfs.num_of_reads + vfs.num_of_writes) AS [Writes + Reads], +CAST(vfs.num_of_bytes_read/1048576.0 AS DECIMAL(16, 2)) AS [MB Read], +CAST(vfs.num_of_bytes_written/1048576.0 AS DECIMAL(16, 2)) AS [MB Written], +CAST(100. * vfs.num_of_reads/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(16,1)) AS [# Reads Pct], +CAST(100. * vfs.num_of_writes/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(16,1)) AS [# Write Pct], +CAST(100. * vfs.num_of_bytes_read/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(16,1)) AS [Read Bytes Pct], +CAST(100. * vfs.num_of_bytes_written/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(16,1)) AS [Written Bytes Pct] +FROM sys.dm_io_virtual_file_stats(DB_ID(), NULL) AS vfs +INNER JOIN sys.database_files AS df WITH (NOLOCK) +ON vfs.[file_id]= df.[file_id] OPTION (RECOMPILE); +------ + +-- This helps you characterize your workload better from an I/O perspective for this database +-- It helps you determine whether you has an OLTP or DW/DSS type of workload + + + +-- Get most frequently executed queries for this database (Query 57) (Query Execution Counts) +SELECT TOP(50) LEFT(t.[text], 50) AS [Short Query Text], qs.execution_count AS [Execution Count], +qs.total_logical_reads AS [Total Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.total_worker_time AS [Total Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.total_elapsed_time AS [Total Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +WHERE t.dbid = DB_ID() +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + + +-- Queries 56 through 61 are the "Bad Man List" for stored procedures + +-- Top Cached SPs By Execution Count (Query 58) (SP Execution Counts) +SELECT TOP(100) p.name AS [SP Name], qs.execution_count AS [Execution Count], +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Tells you which cached stored procedures are called the most often +-- This helps you characterize and baseline your workload + + +-- Top Cached SPs By Avg Elapsed Time (Query 59) (SP Avg Elapsed Time) +SELECT TOP(25) p.name AS [SP Name], qs.min_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +qs.max_elapsed_time, qs.last_elapsed_time, qs.total_elapsed_time, qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], +qs.total_worker_time AS [TotalWorkerTime], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find high average elapsed time cached stored procedures that +-- may be easy to optimize with standard query tuning techniques + + + +-- Top Cached SPs By Total Worker time. Worker time relates to CPU cost (Query 60) (SP Worker Time) +SELECT TOP(25) p.name AS [SP Name], qs.total_worker_time AS [TotalWorkerTime], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a CPU perspective +-- You should look at this if you see signs of CPU pressure + + +-- Top Cached SPs By Total Logical Reads. Logical reads relate to memory pressure (Query 61) (SP Logical Reads) +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_reads AS [TotalLogicalReads], +qs.total_logical_reads/qs.execution_count AS [AvgLogicalReads],qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a memory perspective +-- You should look at this if you see signs of memory pressure + + +-- Top Cached SPs By Total Physical Reads. Physical reads relate to disk read I/O pressure (Query 62) (SP Physical Reads) +SELECT TOP(25) p.name AS [SP Name],qs.total_physical_reads AS [TotalPhysicalReads], +qs.total_physical_reads/qs.execution_count AS [AvgPhysicalReads], qs.execution_count, +qs.total_logical_reads,qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND qs.total_physical_reads > 0 +ORDER BY qs.total_physical_reads DESC, qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a read I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + + +-- Top Cached SPs By Total Logical Writes (Query 63) (SP Logical Writes) +-- Logical writes relate to both memory and disk I/O pressure +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_writes AS [TotalLogicalWrites], +qs.total_logical_writes/qs.execution_count AS [AvgLogicalWrites], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND qs.total_logical_writes > 0 +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_logical_writes DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a write I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + +-- Lists the top statements by average input/output usage for the current database (Query 64) (Top IO Statements) +SELECT TOP(50) OBJECT_NAME(qt.objectid, dbid) AS [SP Name], +(qs.total_logical_reads + qs.total_logical_writes) /qs.execution_count AS [Avg IO], qs.execution_count AS [Execution Count], +SUBSTRING(qt.[text],qs.statement_start_offset/2, + (CASE + WHEN qs.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE qs.statement_end_offset + END - qs.statement_start_offset)/2) AS [Query Text] +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt +WHERE qt.[dbid] = DB_ID() +ORDER BY [Avg IO] DESC OPTION (RECOMPILE); +------ + +-- Helps you find the most expensive statements for I/O by SP + + + +-- Possible Bad NC Indexes (writes > reads) (Query 65) (Bad NC Indexes) +SELECT OBJECT_NAME(s.[object_id]) AS [Table Name], i.name AS [Index Name], i.index_id, +i.is_disabled, i.is_hypothetical, i.has_filter, i.fill_factor, +s.user_updates AS [Total Writes], s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], +s.user_updates - (s.user_seeks + s.user_scans + s.user_lookups) AS [Difference] +FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON s.[object_id] = i.[object_id] +AND i.index_id = s.index_id +WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 +AND s.database_id = DB_ID() +AND s.user_updates > (s.user_seeks + s.user_scans + s.user_lookups) +AND i.index_id > 1 AND i.[type_desc] = N'NONCLUSTERED' +AND i.is_primary_key = 0 AND i.is_unique_constraint = 0 AND i.is_unique = 0 +ORDER BY [Difference] DESC, [Total Writes] DESC, [Total Reads] ASC OPTION (RECOMPILE); +------ + +-- Look for indexes with high numbers of writes and zero or very low numbers of reads +-- Consider your complete workload, and how long your instance has been running +-- Investigate further before dropping an index! + + +-- Missing Indexes for current database by Index Advantage (Query 66) (Missing Indexes) +SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], +COUNT(1) OVER(PARTITION BY mid.[statement]) AS [missing_indexes_for_table], +COUNT(1) OVER(PARTITION BY mid.[statement], equality_columns) AS [similar_missing_indexes_for_table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, +CONVERT(decimal(18,2), migs.avg_total_user_cost) AS [avg_total_user_cost], migs.avg_user_impact, +OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows] +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON p.[object_id] = mid.[object_id] +WHERE mid.database_id = DB_ID() +AND p.index_id < 2 +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Look at index advantage, last user seek time, number of user seeks to help determine source and importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + + +-- Find missing index warnings for cached plans in the current database (Query 67) (Missing Index Warnings) +-- Note: This query could take some time on a busy instance +SELECT TOP(25) OBJECT_NAME(objectid) AS [ObjectName], + cp.objtype, cp.usecounts, cp.size_in_bytes, query_plan +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp +WHERE CAST(query_plan AS NVARCHAR(MAX)) LIKE N'%MissingIndex%' +AND dbid = DB_ID() +ORDER BY cp.usecounts DESC OPTION (RECOMPILE); +------ + +-- Helps you connect missing indexes to specific stored procedures or queries +-- This can help you decide whether to add them or not + + +-- Breaks down buffers used by current database by object (table, index) in the buffer cache (Query 68) (Buffer Usage) +-- Note: This query could take some time on a busy instance +SELECT OBJECT_NAME(p.[object_id]) AS [Object Name], p.index_id, +CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], +COUNT(*) AS [BufferCount], p.[Rows] AS [Row Count], +p.data_compression_desc AS [Compression Type] +FROM sys.allocation_units AS a WITH (NOLOCK) +INNER JOIN sys.dm_os_buffer_descriptors AS b WITH (NOLOCK) +ON a.allocation_unit_id = b.allocation_unit_id +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON a.container_id = p.hobt_id +WHERE b.database_id = CONVERT(int, DB_ID()) +AND p.[object_id] > 100 +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'plan_%' +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'sys%' +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'xml_index_nodes%' +GROUP BY p.[object_id], p.index_id, p.data_compression_desc, p.[Rows] +ORDER BY [BufferCount] DESC OPTION (RECOMPILE); +------ + +-- Tells you what tables and indexes are using the most memory in the buffer cache +-- It can help identify possible candidates for data compression + + +-- Get Table names, row counts, and compression status for clustered index or heap (Query 69) (Table Sizes) +SELECT SCHEMA_NAME(o.Schema_ID) AS [Schema Name], OBJECT_NAME(p.object_id) AS [ObjectName], +SUM(p.Rows) AS [RowCount], data_compression_desc AS [CompressionType] +FROM sys.partitions AS p WITH (NOLOCK) +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON p.object_id = o.object_id +WHERE index_id < 2 --ignore the partitions from the non-clustered index if any +AND OBJECT_NAME(p.object_id) NOT LIKE N'sys%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'spt_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'queue_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filestream_tombstone%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'fulltext%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'ifts_comp_fragment%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filetable_updates%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'xml_index_nodes%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'sqlagent_job%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'plan_persist%' +GROUP BY SCHEMA_NAME(o.Schema_ID), p.object_id, data_compression_desc +ORDER BY SUM(p.Rows) DESC OPTION (RECOMPILE); +------ + +-- Gives you an idea of table sizes, and possible data compression opportunities + + + +-- Get some key table properties (Query 70) (Table Properties) +SELECT OBJECT_NAME(t.[object_id]) AS [ObjectName], p.[rows] AS [Table Rows], p.index_id, + p.data_compression_desc AS [Index Data Compression], + t.create_date, t.lock_on_bulk_load, t.is_replicated, t.has_replication_filter, + t.is_tracked_by_cdc, t.lock_escalation_desc, t.is_filetable, + t.is_memory_optimized, t.durability_desc, + t.temporal_type_desc, t.is_remote_data_archive_enabled, t.is_external -- new for SQL Server 2016 +FROM sys.tables AS t WITH (NOLOCK) +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON t.[object_id] = p.[object_id] +WHERE OBJECT_NAME(t.[object_id]) NOT LIKE N'sys%' +ORDER BY OBJECT_NAME(t.[object_id]), p.index_id OPTION (RECOMPILE); +------ + +-- Gives you some good information about your tables +-- is_memory_optimized and durability_desc were new in SQL Server 2014 +-- temporal_type_desc, is_remote_data_archive_enabled, is_external are new in SQL Server 2016 + +-- sys.tables (Transact-SQL) +-- https://bit.ly/2Gk7998 + + + +-- When were Statistics last updated on all indexes? (Query 71) (Statistics Update) +SELECT SCHEMA_NAME(o.Schema_ID) + N'.' + o.[NAME] AS [Object Name], o.[type_desc] AS [Object Type], + i.[name] AS [Index Name], STATS_DATE(i.[object_id], i.index_id) AS [Statistics Date], + s.auto_created, s.no_recompute, s.user_created, s.is_incremental, s.is_temporary, + st.row_count, st.used_page_count +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON o.[object_id] = i.[object_id] +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.stats_id +INNER JOIN sys.dm_db_partition_stats AS st WITH (NOLOCK) +ON o.[object_id] = st.[object_id] +AND i.[index_id] = st.[index_id] +WHERE o.[type] IN ('U', 'V') +AND st.row_count > 0 +ORDER BY STATS_DATE(i.[object_id], i.index_id) DESC OPTION (RECOMPILE); +------ + +-- Helps discover possible problems with out-of-date statistics +-- Also gives you an idea which indexes are the most active + +-- sys.stats (Transact-SQL) +-- https://bit.ly/2GyAxrn + +-- UPDATEs to Statistics (Erin Stellato) +-- https://bit.ly/2vhrYQy + + + +-- Look at most frequently modified indexes and statistics (Query 72) (Volatile Indexes) +SELECT o.[name] AS [Object Name], o.[object_id], o.[type_desc], s.[name] AS [Statistics Name], + s.stats_id, s.no_recompute, s.auto_created, s.is_incremental, s.is_temporary, + sp.modification_counter, sp.[rows], sp.rows_sampled, sp.last_updated +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON s.object_id = o.object_id +CROSS APPLY sys.dm_db_stats_properties(s.object_id, s.stats_id) AS sp +WHERE o.[type_desc] NOT IN (N'SYSTEM_TABLE', N'INTERNAL_TABLE') +AND sp.modification_counter > 0 +ORDER BY sp.modification_counter DESC, o.name OPTION (RECOMPILE); +------ + +-- This helps you understand your workload and make better decisions about +-- things like data compression and adding new indexes to a table + + + +-- Get fragmentation info for all indexes above a certain size in the current database (Query 73) (Index Fragmentation) +-- Note: This query could take some time on a very large database +SELECT DB_NAME(ps.database_id) AS [Database Name], SCHEMA_NAME(o.[schema_id]) AS [Schema Name], +OBJECT_NAME(ps.OBJECT_ID) AS [Object Name], i.[name] AS [Index Name], ps.index_id, +ps.index_type_desc, ps.avg_fragmentation_in_percent, +ps.fragment_count, ps.page_count, i.fill_factor, i.has_filter, +i.filter_definition, i.[allow_page_locks] +FROM sys.dm_db_index_physical_stats(DB_ID(),NULL, NULL, NULL , N'LIMITED') AS ps +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ps.[object_id] = i.[object_id] +AND ps.index_id = i.index_id +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON i.[object_id] = o.[object_id] +WHERE ps.database_id = DB_ID() +AND ps.page_count > 2500 +ORDER BY ps.avg_fragmentation_in_percent DESC OPTION (RECOMPILE); +------ + +-- Helps determine whether you have framentation in your relational indexes +-- and how effective your index maintenance strategy is + + +--- Index Read/Write stats (all tables in current DB) ordered by Reads (Query 74) (Overall Index Usage - Reads) +SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.[name] AS [IndexName], i.index_id, + s.user_seeks, s.user_scans, s.user_lookups, + s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], + s.user_updates AS [Writes], + i.[type_desc] AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, + s.last_user_scan, s.last_user_lookup, s.last_user_seek +FROM sys.indexes AS i WITH (NOLOCK) +LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 +ORDER BY s.user_seeks + s.user_scans + s.user_lookups DESC OPTION (RECOMPILE); -- Order by reads +------ + +-- Show which indexes in the current database are most active for Reads + + +--- Index Read/Write stats (all tables in current DB) ordered by Writes (Query 75) (Overall Index Usage - Writes) +SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.[name] AS [IndexName], i.index_id, + s.user_updates AS [Writes], s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], + i.[type_desc] AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, + s.last_system_update, s.last_user_update +FROM sys.indexes AS i WITH (NOLOCK) +LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 +ORDER BY s.user_updates DESC OPTION (RECOMPILE); -- Order by writes +------ + +-- Show which indexes in the current database are most active for Writes + + +-- Get in-memory OLTP index usage (Query 76) (XTP Index Usage) +SELECT OBJECT_NAME(i.[object_id]) AS [Object Name], i.index_id, i.[name] AS [Index Name], + i.[type_desc], xis.scans_started, xis.scans_retries, + xis.rows_touched, xis.rows_returned +FROM sys.dm_db_xtp_index_stats AS xis WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON i.[object_id] = xis.[object_id] +AND i.index_id = xis.index_id +ORDER BY OBJECT_NAME(i.[object_id]) OPTION (RECOMPILE); +------ + +-- This gives you some index usage statistics for in-memory OLTP +-- Returns no data if you are not using in-memory OLTP + +-- Guidelines for Using Indexes on Memory-Optimized Tables +-- https://bit.ly/2GCP8lF + + +-- Look at Columnstore index physical statistics (Query 77) (Columnstore Index Physical Stat) +SELECT OBJECT_NAME(ps.object_id) AS [TableName], + i.[name] AS [IndexName], ps.index_id, ps.partition_number, + ps.delta_store_hobt_id, ps.state_desc, ps.total_rows, ps.size_in_bytes, + ps.trim_reason_desc, ps.generation, ps.transition_to_compressed_state_desc, + ps.has_vertipaq_optimization, ps.deleted_rows, + 100 * (ISNULL(ps.deleted_rows, 0))/ps.total_rows AS [Fragmentation] +FROM sys.dm_db_column_store_row_group_physical_stats AS ps WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ps.object_id = i.object_id +AND ps.index_id = i.index_id +ORDER BY ps.object_id, ps.partition_number, ps.row_group_id OPTION (RECOMPILE); +------ + +-- sys.dm_db_column_store_row_group_physical_stats (Transact-SQL) +-- https://bit.ly/2q276XQ + + +-- Get lock waits for current database (Query 78) (Lock Waits) +SELECT o.name AS [table_name], i.name AS [index_name], ios.index_id, ios.partition_number, + SUM(ios.row_lock_wait_count) AS [total_row_lock_waits], + SUM(ios.row_lock_wait_in_ms) AS [total_row_lock_wait_in_ms], + SUM(ios.page_lock_wait_count) AS [total_page_lock_waits], + SUM(ios.page_lock_wait_in_ms) AS [total_page_lock_wait_in_ms], + SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) AS [total_lock_wait_in_ms] +FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) AS ios +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON ios.[object_id] = o.[object_id] +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ios.[object_id] = i.[object_id] +AND ios.index_id = i.index_id +WHERE o.[object_id] > 100 +GROUP BY o.name, i.name, ios.index_id, ios.partition_number +HAVING SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) > 0 +ORDER BY total_lock_wait_in_ms DESC OPTION (RECOMPILE); +------ + +-- This query is helpful for troubleshooting blocking and deadlocking issues + + + +-- Look at UDF execution statistics (Query 79) (UDF Statistics) +SELECT OBJECT_NAME(object_id) AS [Function Name], execution_count, + total_worker_time, total_logical_reads, total_physical_reads, total_elapsed_time, + total_elapsed_time/execution_count AS [avg_elapsed_time], + FORMAT(cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +FROM sys.dm_exec_function_stats WITH (NOLOCK) +WHERE database_id = DB_ID() +ORDER BY total_worker_time DESC OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Helps you investigate scalar UDF performance issues +-- Does not return information for table valued functions + +-- sys.dm_exec_function_stats (Transact-SQL) +-- https://bit.ly/2q1Q6BM + + +-- Get Query Store Options for this database (Query 80) (QueryStore Options) +SELECT actual_state_desc, desired_state_desc, [interval_length_minutes], + current_storage_size_mb, [max_storage_size_mb], + query_capture_mode_desc, size_based_cleanup_mode_desc +FROM sys.database_query_store_options WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Requires that Query Store is enabled for this database + +-- Tuning Workload Performance with Query Store +-- https://bit.ly/1kHSl7w + + +-- Get highest aggregate duration queries over last hour (Query 81) (High Aggregate Duration Queries) +WITH AggregatedDurationLastHour +AS +(SELECT q.query_id, SUM(count_executions * avg_duration) AS total_duration, + COUNT (distinct p.plan_id) AS number_of_plans + FROM sys.query_store_query_text AS qt WITH (NOLOCK) + INNER JOIN sys.query_store_query AS q WITH (NOLOCK) + ON qt.query_text_id = q.query_text_id + INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) + ON q.query_id = p.query_id + INNER JOIN sys.query_store_runtime_stats AS rs WITH (NOLOCK) + ON rs.plan_id = p.plan_id + INNER JOIN sys.query_store_runtime_stats_interval AS rsi WITH (NOLOCK) + ON rsi.runtime_stats_interval_id = rs.runtime_stats_interval_id + WHERE rsi.start_time >= DATEADD(hour, -1, GETUTCDATE()) + AND rs.execution_type_desc = N'Regular' + GROUP BY q.query_id), +OrderedDuration AS +(SELECT query_id, total_duration, number_of_plans, + ROW_NUMBER () OVER (ORDER BY total_duration DESC, query_id) AS RN + FROM AggregatedDurationLastHour) +SELECT OBJECT_NAME(q.object_id) AS [Containing Object], qt.query_sql_text, +od.total_duration AS [Total Duration (microsecs)], +od.number_of_plans AS [Plan Count], +p.is_forced_plan, p.is_parallel_plan, p.is_trivial_plan, +q.query_parameterization_type_desc, p.[compatibility_level], +p.last_compile_start_time, q.last_execution_time, +CONVERT(xml, p.query_plan) AS query_plan_xml +FROM OrderedDuration AS od +INNER JOIN sys.query_store_query AS q WITH (NOLOCK) +ON q.query_id = od.query_id +INNER JOIN sys.query_store_query_text AS qt WITH (NOLOCK) +ON q.query_text_id = qt.query_text_id +INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) +ON q.query_id = p.query_id +WHERE od.RN <= 50 +ORDER BY total_duration DESC OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Requires that QueryStore is enabled for this database + + +-- Get input buffer information for the current database (Query 82) (Input Buffer) +SELECT es.session_id, DB_NAME(es.database_id) AS [Database Name], +es.login_time, es.cpu_time, es.logical_reads, +es.[status], ib.event_info AS [Input Buffer] +FROM sys.dm_exec_sessions AS es WITH (NOLOCK) +CROSS APPLY sys.dm_exec_input_buffer(es.session_id, NULL) AS ib +WHERE es.database_id = DB_ID() +AND es.session_id > 50 +AND es.session_id <> @@SPID OPTION (RECOMPILE); + +-- Gives you input buffer information from all non-system sessions for the current database +-- Replaces DBCC INPUTBUFFER + +-- New DMF for retrieving input buffer in SQL Server +-- https://bit.ly/2uHKMbz + + + +-- Look at recent Full backups for the current database (Query 83) (Recent Full Backups) +SELECT TOP (30) bs.machine_name, bs.server_name, bs.database_name AS [Database Name], bs.recovery_model, +CONVERT (BIGINT, bs.backup_size / 1048576 ) AS [Uncompressed Backup Size (MB)], +CONVERT (BIGINT, bs.compressed_backup_size / 1048576 ) AS [Compressed Backup Size (MB)], +CONVERT (NUMERIC (20,2), (CONVERT (FLOAT, bs.backup_size) / +CONVERT (FLOAT, bs.compressed_backup_size))) AS [Compression Ratio], bs.has_backup_checksums, bs.is_copy_only, bs.encryptor_type, +DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) AS [Backup Elapsed Time (sec)], +bs.backup_finish_date AS [Backup Finish Date], bmf.physical_device_name AS [Backup Location], bmf.physical_block_size +FROM msdb.dbo.backupset AS bs WITH (NOLOCK) +INNER JOIN msdb.dbo.backupmediafamily AS bmf WITH (NOLOCK) +ON bs.media_set_id = bmf.media_set_id +WHERE bs.database_name = DB_NAME(DB_ID()) +AND bs.[type] = 'D' -- Change to L if you want Log backups +ORDER BY bs.backup_finish_date DESC OPTION (RECOMPILE); +------ + +-- Are your backup sizes and times changing over time? +-- Are you using backup compression? +-- Are you using backup checksums? +-- Are you doing copy_only backups? +-- Are you doing encrypted backups? +-- Have you done any backup tuning with striped backups, or changing the parameters of the backup command? + +-- In SQL Server 2016, native SQL Server backup compression actually works much better with databases that are using TDE than in previous versions +-- https://bit.ly/28Rpb2x + + +-- These five Pluralsight Courses go into more detail about how to run these queries and interpret the results + +-- SQL Server 2017: Diagnosing Performance Issues with DMVs +-- https://bit.ly/2FqCeti + +-- SQL Server 2017: Diagnosing Configuration Issues with DMVs +-- https://bit.ly/2MSUDUL + +-- SQL Server 2014 DMV Diagnostic Queries Part 1 +-- https://bit.ly/2plxCer + +-- SQL Server 2014 DMV Diagnostic Queries Part 2 +-- https://bit.ly/2IuJpzI + +-- SQL Server 2014 DMV Diagnostic Queries Part 3 +-- https://bit.ly/2FIlCPb + + + +-- Sign up for Microsoft Visual Studio Dev Essentials and get a free three month pass to Pluralsight + +-- Microsoft Visual Studio Dev Essentials +-- http://bit.ly/1q6xbDL + + +-- Sign up for Microsoft Azure Essentials and get lots of free Azure usage credits, MCP exam voucher, three month Pluralsight subscription + +-- Microsoft Azure Essentials +-- https://bit.ly/2JMWe8x + + +-- August 2017 blog series about upgrading and migrating to SQL Server 2016/2017 +-- https://bit.ly/2ftKVrX + + + diff --git a/Scripts/SQL Server 2016 SP2 Diagnostic Information Queries.sql b/Scripts/SQL Server 2016 SP2 Diagnostic Information Queries.sql new file mode 100644 index 00000000..93e9a3ab --- /dev/null +++ b/Scripts/SQL Server 2016 SP2 Diagnostic Information Queries.sql @@ -0,0 +1,2078 @@ + +-- SQL Server 2016 SP2 Diagnostic Information Queries +-- Glenn Berry +-- Last Modified: February 1, 2019 +-- https://www.sqlskills.com/blogs/glenn/ +-- http://sqlserverperformance.wordpress.com/ +-- Twitter: GlennAlanBerry + +-- Please listen to my Pluralsight courses +-- https://www.pluralsight.com/author/glenn-berry + +-- If you want to find all of our SQLskills SQL101 blog posts, check out https://bit.ly/2qLwfXW + + +-- Please make sure you are using the correct version of these diagnostic queries for your version of SQL Server + + +-- If you like PowerShell, there is a very useful community solution for running these queries in an automated fashion +-- https://dbatools.io/ + +-- Invoke-DbaDiagnosticQuery +-- https://dbatools.io/functions/invoke-dbadiagnosticquery/ + + +--****************************************************************************** +--* Copyright (C) 2019 Glenn Berry, SQLskills.com +--* All rights reserved. +--* +--* For more scripts and sample code, check out +--* https://www.sqlskills.com/blogs/glenn +--* +--* You may alter this code for your own *non-commercial* purposes. You may +--* republish altered code as long as you include this copyright and give due credit. +--* +--* +--* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF +--* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED +--* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A +--* PARTICULAR PURPOSE. +--* +--****************************************************************************** + +-- Check the major product version to see if it is SQL Server 2016 SP2 or greater +IF EXISTS (SELECT * WHERE CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')) LIKE '13%') + BEGIN + IF CONVERT(int, SERVERPROPERTY('ProductBuild')) >= 5026 + PRINT N'You have the correct Service Pack of SQL Server 2016 for this diagnostic information script'; + IF CONVERT(int, SERVERPROPERTY('ProductBuild')) < 5026 + PRINT N'You do NOT have the correct Service Pack of SQL Server 2016 for this diagnostic information script'; + END +ELSE + BEGIN + DECLARE @ProductVersion varchar(128) = CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')); + RAISERROR ('Script does not match the ProductVersion [%s] of this instance. Many of these queries may not work on this version.' , 18 , 16 , @ProductVersion); + END + + + +-- Instance level queries ******************************* + +-- SQL and OS Version information for current instance (Query 1) (Version Info) +SELECT @@SERVERNAME AS [Server Name], @@VERSION AS [SQL Server and OS Version Info]; +------ + +-- SQL Server 2016 Builds +-- Build Description Release Date URL to KB Article +-- 13.0.5026.0 SP2 RTM 4/24/2018 https://bit.ly/2FEvN2q +-- 13.0.5149.0 SP2 CU1 5/30/2018 https://support.microsoft.com/en-us/help/4135048/cumulative-update-1-for-sql-server-2016-sp2 +-- 13.0.5153.0 SP2 CU2 7/16/2018 https://support.microsoft.com/en-us/help/4340355 +-- 13.0.5216.0 SP2 CU3 9/20/2018 https://support.microsoft.com/en-us/help/4458871 +-- 13.0.5233.0 SP2 CU4 11/13/2018 https://support.microsoft.com/en-us/help/4464106/cumulative-update-4-for-sql-server-2016-sp2 +-- 13.0.5264.1 SP2 CU5 1/23/2019 https://support.microsoft.com/en-us/help/4475776/cumulative-update-5-for-sql-server-2016-sp2 + + + + +-- How to determine the version, edition and update level of SQL Server and its components +-- https://bit.ly/2oAjKgW + +-- How to obtain the latest Service Pack for SQL Server 2016 +-- https://bit.ly/2egtfzK + +-- SQL Server 2016 build versions +-- https://bit.ly/2epkTDT + +-- Where to find information about the latest SQL Server builds +-- https://bit.ly/2IGHbfY + +-- Performance and Stability Related Fixes in Post-SQL Server 2016 SP2 Builds +-- https://bit.ly/2K3LoPf + +-- Announcing updates to the SQL Server Incremental Servicing Model (ISM) +-- https://bit.ly/1RzYITz + +-- Update Center for Microsoft SQL Server +-- https://bit.ly/2pZptuQ + +-- Download SQL Server Management Studio (SSMS) +-- https://bit.ly/1OcupT9 + +-- Download and install Azure Data Studio +-- https://bit.ly/2vgke1A + + + +-- Get socket, physical core and logical core count from the SQL Server Error log. (Query 2) (Core Counts) +-- This query might take a few seconds depending on the size of your error log +EXEC sys.xp_readerrorlog 0, 1, N'detected', N'socket'; +------ + +-- This can help you determine the exact core counts used by SQL Server and whether HT is enabled or not +-- It can also help you confirm your SQL Server licensing model +-- Be on the lookout for this message "using 40 logical processors based on SQL Server licensing" +-- (when you have more than 40 logical cores) which means grandfathered Server/CAL licensing +-- This query will return no results if your error log has been recycled since the instance was last started + + + +-- Get selected server properties (Query 3) (Server Properties) +SELECT SERVERPROPERTY('MachineName') AS [MachineName], +SERVERPROPERTY('ServerName') AS [ServerName], +SERVERPROPERTY('InstanceName') AS [Instance], +SERVERPROPERTY('IsClustered') AS [IsClustered], +SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS [ComputerNamePhysicalNetBIOS], +SERVERPROPERTY('Edition') AS [Edition], +SERVERPROPERTY('ProductLevel') AS [ProductLevel], -- What servicing branch (RTM/SP/CU) +SERVERPROPERTY('ProductUpdateLevel') AS [ProductUpdateLevel], -- Within a servicing branch, what CU# is applied +SERVERPROPERTY('ProductVersion') AS [ProductVersion], +SERVERPROPERTY('ProductMajorVersion') AS [ProductMajorVersion], +SERVERPROPERTY('ProductMinorVersion') AS [ProductMinorVersion], +SERVERPROPERTY('ProductBuild') AS [ProductBuild], +SERVERPROPERTY('ProductBuildType') AS [ProductBuildType], -- Is this a GDR or OD hotfix (NULL if on a CU build) +SERVERPROPERTY('ProductUpdateReference') AS [ProductUpdateReference], -- KB article number that is applicable for this build +SERVERPROPERTY('ProcessID') AS [ProcessID], +SERVERPROPERTY('Collation') AS [Collation], +SERVERPROPERTY('IsFullTextInstalled') AS [IsFullTextInstalled], +SERVERPROPERTY('IsIntegratedSecurityOnly') AS [IsIntegratedSecurityOnly], +SERVERPROPERTY('FilestreamConfiguredLevel') AS [FilestreamConfiguredLevel], +SERVERPROPERTY('IsHadrEnabled') AS [IsHadrEnabled], +SERVERPROPERTY('HadrManagerStatus') AS [HadrManagerStatus], +SERVERPROPERTY('InstanceDefaultDataPath') AS [InstanceDefaultDataPath], +SERVERPROPERTY('InstanceDefaultLogPath') AS [InstanceDefaultLogPath], +SERVERPROPERTY('BuildClrVersion') AS [Build CLR Version], +SERVERPROPERTY('IsXTPSupported') AS [IsXTPSupported], +SERVERPROPERTY('IsPolybaseInstalled') AS [IsPolybaseInstalled], -- New for SQL Server 2016 +SERVERPROPERTY('IsAdvancedAnalyticsInstalled') AS [IsRServicesInstalled]; -- New for SQL Server 2016 +------ + +-- This gives you a lot of useful information about your instance of SQL Server, +-- such as the ProcessID for SQL Server and your collation +-- Note: Some columns will be NULL on older SQL Server builds + +-- SERVERPROPERTY (Transact-SQL) +-- https://bit.ly/2eeaXeI + + + +-- Get instance-level configuration values for instance (Query 4) (Configuration Values) +SELECT name, value, value_in_use, minimum, maximum, [description], is_dynamic, is_advanced +FROM sys.configurations WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Focus on these settings: +-- automatic soft-NUMA disabled (should be 0 in most cases) +-- backup checksum default (should be 1) +-- backup compression default (should be 1 in most cases) +-- clr enabled (only enable if it is needed) +-- cost threshold for parallelism (depends on your workload) +-- lightweight pooling (should be zero) +-- max degree of parallelism (depends on your workload and hardware) +-- max server memory (MB) (set to an appropriate value, not the default) +-- optimize for ad hoc workloads (should be 1) +-- priority boost (should be zero) +-- remote admin connections (should be 1) + + +-- sys.configurations (Transact-SQL) +-- https://bit.ly/2HsyDZI + + +-- Returns a list of all global trace flags that are enabled (Query 5) (Global Trace Flags) +DBCC TRACESTATUS (-1); +------ + +-- If no global trace flags are enabled, no results will be returned. +-- It is very useful to know what global trace flags are currently enabled as part of the diagnostic process. + +-- Common trace flags that should be enabled in most cases +-- TF 3226 - Supresses logging of successful database backup messages to the SQL Server Error Log +-- https://bit.ly/2p6MTjS + +-- TF 6534 - Enables use of native code to improve performance with spatial data +-- https://bit.ly/2HrQUpU + +-- The behavior of TF 1117, 1118 are enabled for tempdb in SQL Server 2016 by default +-- SQL 2016 It Just Runs Faster: -T1117 and -T1118 changes for TEMPDB and user databases +-- https://bit.ly/2lbNWxK + +-- The behavior of TF 2371 is enabled by default in SQL Server 2016 and newer (in compat level 130 and higher) + +-- DBCC TRACEON - Trace Flags (Transact-SQL) +-- https://bit.ly/2FuSvPg + +-- Recommended updates and configuration options for SQL Server 2017 and 2016 with high-performance workloads +-- https://bit.ly/2VVRGTY + + + +-- Returns status of instant file initialization (Query 6) (IFI Status) +EXEC sys.xp_readerrorlog 0, 1, N'Database Instant File Initialization'; +------ + +-- Lets you determine whether Instant File Initialization (IFI) is enabled for the instance +-- This should be enabled in the vast majority of cases +-- SQL Server 2016 and newer lets you enable this during the SQL server installation process + +-- Database Instant File Initialization +-- https://bit.ly/2nTX74y + +-- Misconceptions around instant file initialization +-- https://bit.ly/2oBSKgZ + + + +-- SQL Server Process Address space info (Query 7) (Process Memory) +-- (shows whether locked pages is enabled, among other things) +SELECT physical_memory_in_use_kb/1024 AS [SQL Server Memory Usage (MB)], + locked_page_allocations_kb/1024 AS [SQL Server Locked Pages Allocation (MB)], + large_page_allocations_kb/1024 AS [SQL Server Large Pages Allocation (MB)], + page_fault_count, memory_utilization_percentage, available_commit_limit_kb, + process_physical_memory_low, process_virtual_memory_low +FROM sys.dm_os_process_memory WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You want to see 0 for process_physical_memory_low +-- You want to see 0 for process_virtual_memory_low +-- This indicates that you are not under internal memory pressure +-- If locked_page_allocations_kb > 0, then LPIM is enabled + +-- How to enable the "locked pages" feature in SQL Server 2012 +-- https://bit.ly/2F5UjOA + +-- Memory Management Architecture Guide +-- https://bit.ly/2JKkadC + + + +-- SQL Server Services information (Query 8) (SQL Server Services Info) +SELECT servicename, process_id, startup_type_desc, status_desc, +last_startup_time, service_account, is_clustered, cluster_nodename, [filename], +instant_file_initialization_enabled +FROM sys.dm_server_services WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Tells you the account being used for the SQL Server Service and the SQL Agent Service +-- Shows the process_id, when they were last started, and their current status +-- Also shows whether you are running on a failover cluster instance, and what node you are running on +-- Also shows whether IFI is enabled + +-- sys.dm_server_services (Transact-SQL) +-- https://bit.ly/2oKa1Un + + +-- Last backup information by database (Query 9) (Last Backup By Database) +SELECT ISNULL(d.[name], bs.[database_name]) AS [Database], d.recovery_model_desc AS [Recovery Model], + d.log_reuse_wait_desc AS [Log Reuse Wait Desc], + MAX(CASE WHEN [type] = 'D' THEN bs.backup_finish_date ELSE NULL END) AS [Last Full Backup], + MAX(CASE WHEN [type] = 'I' THEN bs.backup_finish_date ELSE NULL END) AS [Last Differential Backup], + MAX(CASE WHEN [type] = 'L' THEN bs.backup_finish_date ELSE NULL END) AS [Last Log Backup] +FROM sys.databases AS d WITH (NOLOCK) +LEFT OUTER JOIN msdb.dbo.backupset AS bs WITH (NOLOCK) +ON bs.[database_name] = d.[name] +AND bs.backup_finish_date > GETDATE()- 30 +WHERE d.name <> N'tempdb' +GROUP BY ISNULL(d.[name], bs.[database_name]), d.recovery_model_desc, d.log_reuse_wait_desc, d.[name] +ORDER BY d.recovery_model_desc, d.[name] OPTION (RECOMPILE); +------ + +-- This helps you spot runaway transaction logs and other issues with your backup schedule + + +-- Get SQL Server Agent jobs and Category information (Query 10) (SQL Server Agent Jobs) +SELECT sj.name AS [Job Name], sj.[description] AS [Job Description], SUSER_SNAME(sj.owner_sid) AS [Job Owner], +sj.date_created AS [Date Created], sj.[enabled] AS [Job Enabled], +sj.notify_email_operator_id, sj.notify_level_email, sc.name AS [CategoryName], +s.[enabled] AS [Sched Enabled], js.next_run_date, js.next_run_time +FROM msdb.dbo.sysjobs AS sj WITH (NOLOCK) +INNER JOIN msdb.dbo.syscategories AS sc WITH (NOLOCK) +ON sj.category_id = sc.category_id +LEFT OUTER JOIN msdb.dbo.sysjobschedules AS js WITH (NOLOCK) +ON sj.job_id = js.job_id +LEFT OUTER JOIN msdb.dbo.sysschedules AS s WITH (NOLOCK) +ON js.schedule_id = s.schedule_id +ORDER BY sj.name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent jobs, who owns them and how they are configured +-- Look for Agent jobs that are not owned by sa +-- Look for jobs that have a notify_email_operator_id set to 0 (meaning no operator) +-- Look for jobs that have a notify_level_email set to 0 (meaning no e-mail is ever sent) +-- +-- MSDN sysjobs documentation +-- https://bit.ly/2paDEOP + +-- SQL Server Maintenance Solution +-- https://bit.ly/1pgchQu + + +-- Get SQL Server Agent Alert Information (Query 11) (SQL Server Agent Alerts) +SELECT name, event_source, message_id, severity, [enabled], has_notification, + delay_between_responses, occurrence_count, last_occurrence_date, last_occurrence_time +FROM msdb.dbo.sysalerts WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent Alerts +-- (which are different from SQL Server Agent jobs) +-- Read more about Agent Alerts here: https://bit.ly/2Giz0Xf + + + +-- Windows information (Query 12) (Windows Info) +SELECT windows_release, windows_service_pack_level, + windows_sku, os_language_version +FROM sys.dm_os_windows_info WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Gives you major OS version, Service Pack, Edition, and language info for the operating system +-- 10.0 is either Windows 10 or Windows Server 2016 +-- 6.3 is either Windows 8.1 or Windows Server 2012 R2 +-- 6.2 is either Windows 8 or Windows Server 2012 + + +-- Windows SKU codes +-- 4 is Enterprise Edition +-- 7 is Standard Server Edition +-- 8 is Datacenter Server Edition +-- 10 is Enterprise Server Edition +-- 48 is Professional Edition +-- 161 is Pro for Workstations + +-- 1033 for os_language_version is US-English + +-- SQL Server 2016 requires Windows Server 2012 or newer + +-- Quick-Start Installation of SQL Server 2016 +-- https://bit.ly/2qtxQ3G + +-- Hardware and Software Requirements for Installing SQL Server 2016 +-- https://bit.ly/2JJIUTl + +-- Using SQL Server in Windows 8 and later versions of Windows operating system +-- https://bit.ly/2F7Ax0P + + +-- SQL Server NUMA Node information (Query 13) (SQL Server NUMA Info) +SELECT node_id, node_state_desc, memory_node_id, processor_group, cpu_count, online_scheduler_count, + idle_scheduler_count, active_worker_count, avg_load_balance, resource_monitor_state +FROM sys.dm_os_nodes WITH (NOLOCK) +WHERE node_state_desc <> N'ONLINE DAC' OPTION (RECOMPILE); +------ + +-- Gives you some useful information about the composition and relative load on your NUMA nodes +-- You want to see an equal number of schedulers on each NUMA node +-- Watch out if SQL Server 2017 Standard Edition has been installed +-- on a physical or virtual machine with more than four sockets or more than 24 physical cores + +-- sys.dm_os_nodes (Transact-SQL) +-- https://bit.ly/2pn5Mw8 + +-- Balancing Your Available SQL Server Core Licenses Evenly Across NUMA Nodes +-- https://bit.ly/2vfC4Rq + + + +-- Good basic information about OS memory amounts and state (Query 14) (System Memory) +SELECT total_physical_memory_kb/1024 AS [Physical Memory (MB)], + available_physical_memory_kb/1024 AS [Available Memory (MB)], + total_page_file_kb/1024 AS [Total Page File (MB)], + available_page_file_kb/1024 AS [Available Page File (MB)], + system_cache_kb/1024 AS [System Cache (MB)], + system_memory_state_desc AS [System Memory State] +FROM sys.dm_os_sys_memory WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You want to see "Available physical memory is high" for System Memory State +-- This indicates that you are not under external memory pressure + +-- Possible System Memory State values: +-- Available physical memory is high +-- Physical memory usage is steady +-- Available physical memory is low +-- Available physical memory is running low +-- Physical memory state is transitioning + +-- sys.dm_os_sys_memory (Transact-SQL) +-- https://bit.ly/2pcV0xq + + + +-- You can skip the next two queries if you know you don't have a clustered instance + + +-- Get information about your cluster nodes and their status (Query 15) (Cluster Node Properties) +-- (if your database server is in a failover cluster) +SELECT NodeName, status_description, is_current_owner +FROM sys.dm_os_cluster_nodes WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Knowing which node owns the cluster resources is critical +-- Especially when you are installing Windows or SQL Server updates +-- You will see no results if your instance is not clustered + +-- Recommended hotfixes and updates for Windows Server 2012 R2-based failover clusters +-- https://bit.ly/1z5BfCw + + +-- Get information about any AlwaysOn AG cluster this instance is a part of (Query 16) (AlwaysOn AG Cluster) +SELECT cluster_name, quorum_type_desc, quorum_state_desc +FROM sys.dm_hadr_cluster WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You will see no results if your instance is not using AlwaysOn AGs + + +-- Good overview of AG health and status (Query 17) (AlwaysOn AG Status) +SELECT ag.name AS [AG Name], ar.replica_server_name, ar.availability_mode_desc, adc.[database_name], + drs.is_local, drs.is_primary_replica, drs.synchronization_state_desc, drs.is_commit_participant, + drs.synchronization_health_desc, drs.recovery_lsn, drs.truncation_lsn, drs.last_sent_lsn, + drs.last_sent_time, drs.last_received_lsn, drs.last_received_time, drs.last_hardened_lsn, + drs.last_hardened_time, drs.last_redone_lsn, drs.last_redone_time, drs.log_send_queue_size, + drs.log_send_rate, drs.redo_queue_size, drs.redo_rate, drs.filestream_send_rate, + drs.end_of_log_lsn, drs.last_commit_lsn, drs.last_commit_time, drs.database_state_desc +FROM sys.dm_hadr_database_replica_states AS drs WITH (NOLOCK) +INNER JOIN sys.availability_databases_cluster AS adc WITH (NOLOCK) +ON drs.group_id = adc.group_id +AND drs.group_database_id = adc.group_database_id +INNER JOIN sys.availability_groups AS ag WITH (NOLOCK) +ON ag.group_id = drs.group_id +INNER JOIN sys.availability_replicas AS ar WITH (NOLOCK) +ON drs.group_id = ar.group_id +AND drs.replica_id = ar.replica_id +ORDER BY ag.name, ar.replica_server_name, adc.[database_name] OPTION (RECOMPILE); + +-- You will see no results if your instance is not using AlwaysOn AGs + +-- SQL Server 2016 It Just Runs Faster: Always On Availability Groups Turbocharged +-- https://bit.ly/2dn1H6r + + +-- Hardware information from SQL Server 2016 SP2 (Query 18) (Hardware Info) +SELECT cpu_count AS [Logical CPU Count], scheduler_count, + (socket_count * cores_per_socket) AS [Physical Core Count], + socket_count AS [Socket Count], cores_per_socket, numa_node_count, + physical_memory_kb/1024 AS [Physical Memory (MB)], + max_workers_count AS [Max Workers Count], + affinity_type_desc AS [Affinity Type], + sqlserver_start_time AS [SQL Server Start Time], + DATEDIFF(hour, sqlserver_start_time, GETDATE()) AS [SQL Server Up Time (hrs)], + virtual_machine_type_desc AS [Virtual Machine Type], + softnuma_configuration_desc AS [Soft NUMA Configuration], + sql_memory_model_desc +FROM sys.dm_os_sys_info WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Gives you some good basic hardware information about your database server +-- Note: virtual_machine_type_desc of HYPERVISOR does not automatically mean you are running SQL Server inside of a VM +-- It merely indicates that you have a hypervisor running on your host + +-- sys.dm_os_sys_info (Transact-SQL) +-- https://bit.ly/2pczOYs + +-- Soft NUMA configuration was a new column for SQL Server 2016 +-- OFF = Soft-NUMA feature is OFF +-- ON = SQL Server automatically determines the NUMA node sizes for Soft-NUMA +-- MANUAL = Manually configured soft-NUMA + +-- Configure SQL Server to Use Soft-NUMA (SQL Server) +-- https://bit.ly/2HTpKJt + +-- sql_memory_model_desc values (Added in SQL Server 2016 SP1) +-- CONVENTIONAL +-- LOCK_PAGES +-- LARGE_PAGES + + +-- Get System Manufacturer and model number from SQL Server Error log (Query 19) (System Manufacturer) +EXEC sys.xp_readerrorlog 0, 1, N'Manufacturer'; +------ + +-- This can help you determine the capabilities and capacities of your database server +-- Can also be used to confirm if you are running in a VM +-- This query might take a few seconds if you have not recycled your error log recently +-- This query will return no results if your error log has been recycled since the instance was started + + +-- Get pvscsi info from Windows Registry (Query 20) (PVSCSI Driver Parameters) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'SYSTEM\CurrentControlSet\services\pvscsi\Parameters\Device', N'DriverParameter'; +------ + +-- This is valid for VMware VMs +-- Recommended value for intensive I/O patterns from VMware is: RequestRingPages=32,MaxQueueDepth=254 +-- https://kb.vmware.com/s/article/2053145 + + + +-- Get BIOS date from Windows Registry (Query 21) (BIOS Date) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\BIOS', N'BiosReleaseDate'; +------ + +-- Helps you understand whether the main system BIOS is up to date, and the possible age of the hardware +-- Not as useful for virtualization + + +-- Get processor description from Windows Registry (Query 22) (Processor Description) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\CentralProcessor\0', N'ProcessorNameString'; +------ + +-- Gives you the model number and rated clock speed of your processor(s) +-- Your processors may be running at less than the rated clock speed due +-- to the Windows Power Plan or hardware power management + +-- You can use CPU-Z to get your actual CPU core speed and a lot of other useful information +-- https://bit.ly/QhR6xF + +-- You can learn more about processor selection for SQL Server by following this link +-- https://bit.ly/2F3aVlP + + + +-- See if buffer pool extension (BPE) is enabled (Query 23) (BPE Configuration) +SELECT [path], state_description, current_size_in_kb, +CAST(current_size_in_kb/1048576.0 AS DECIMAL(10,2)) AS [Size (GB)] +FROM sys.dm_os_buffer_pool_extension_configuration WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- BPE is available in both Standard Edition and Enterprise Edition +-- It is a more interesting feature for Standard Edition + +-- Buffer Pool Extension to SSDs in SQL Server 2014 +-- https://bit.ly/1bm08m8 + +-- Buffer Pool Extension +-- https://bit.ly/2oBuieO + + + +-- Look at buffer descriptors to see BPE usage by database (Query 24) (BPE Usage) +SELECT DB_NAME(database_id) AS [Database Name], COUNT(page_id) AS [Page Count], +CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], +AVG(read_microsec) AS [Avg Read Time (microseconds)] +FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) +WHERE database_id <> 32767 +AND is_in_bpool_extension = 1 +GROUP BY DB_NAME(database_id) +ORDER BY [Buffer size(MB)] DESC OPTION (RECOMPILE); +------ + +-- You will see no results if BPE is not enabled or if there is no BPE usage + + +-- Get information on location, time and size of any memory dumps from SQL Server (Query 25) (Memory Dump Info) +SELECT [filename], creation_time, size_in_bytes/1048576.0 AS [Size (MB)] +FROM sys.dm_server_memory_dumps WITH (NOLOCK) +ORDER BY creation_time DESC OPTION (RECOMPILE); +------ + +-- This will not return any rows if you have +-- not had any memory dumps (which is a good thing) + +-- sys.dm_server_memory_dumps (Transact-SQL) +-- https://bit.ly/2elwWll + + + +-- Look at Suspect Pages table (Query 26) (Suspect Pages) +SELECT DB_NAME(database_id) AS [Database Name], [file_id], page_id, + event_type, error_count, last_update_date +FROM msdb.dbo.suspect_pages WITH (NOLOCK) +ORDER BY database_id OPTION (RECOMPILE); +------ + +-- event_type value descriptions +-- 1 = 823 error caused by an operating system CRC error +-- or 824 error other than a bad checksum or a torn page (for example, a bad page ID) +-- 2 = Bad checksum +-- 3 = Torn page +-- 4 = Restored (The page was restored after it was marked bad) +-- 5 = Repaired (DBCC repaired the page) +-- 7 = Deallocated by DBCC + +-- Ideally, this query returns no results. The table is limited to 1000 rows. +-- If you do get results here, you should do further investigation to determine the root cause + +-- Manage the suspect_pages Table +-- https://bit.ly/2Fvr1c9 + + +-- Get number of data files in tempdb database (Query 27) (TempDB Data Files) +EXEC sys.xp_readerrorlog 0, 1, N'The tempdb database has'; +------ + +-- Get the number of data files in the tempdb database +-- 4-8 data files that are all the same size is a good starting point +-- This query will return no results if your error log has been recycled since the instance was last started + + +-- File names and paths for all user and system databases on instance (Query 28) (Database Filenames and Paths) +SELECT DB_NAME([database_id]) AS [Database Name], + [file_id], [name], physical_name, [type_desc], state_desc, + is_percent_growth, growth, + CONVERT(bigint, growth/128.0) AS [Growth in MB], + CONVERT(bigint, size/128.0) AS [Total Size in MB] +FROM sys.master_files WITH (NOLOCK) +ORDER BY DB_NAME([database_id]), [file_id] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- Are data files and log files on different drives? +-- Is everything on the C: drive? +-- Is tempdb on dedicated drives? +-- Is there only one tempdb data file? +-- Are all of the tempdb data files the same size? +-- Are there multiple data files for user databases? +-- Is percent growth enabled for any files (which is bad)? + + + +-- Volume info for all LUNS that have database files on the current instance (Query 29) (Volume Info) +SELECT DISTINCT vs.volume_mount_point, vs.file_system_type, vs.logical_volume_name, +CONVERT(DECIMAL(18,2), vs.total_bytes/1073741824.0) AS [Total Size (GB)], +CONVERT(DECIMAL(18,2), vs.available_bytes/1073741824.0) AS [Available Size (GB)], +CONVERT(DECIMAL(18,2), vs.available_bytes * 1. / vs.total_bytes * 100.) AS [Space Free %], +vs.supports_compression, vs.is_compressed, +vs.supports_sparse_files, vs.supports_alternate_streams +FROM sys.master_files AS f WITH (NOLOCK) +CROSS APPLY sys.dm_os_volume_stats(f.database_id, f.[file_id]) AS vs +ORDER BY vs.volume_mount_point OPTION (RECOMPILE); +------ + +-- Shows you the total and free space on the LUNs where you have database files +-- Being low on free space can negatively affect performance + +-- sys.dm_os_volume_stats (Transact-SQL) +-- https://bit.ly/2oBPNNr + + + +-- Drive level latency information (Query 30) (Drive Level Latency) +-- Based on code from Jimmy May +SELECT tab.[Drive], tab.volume_mount_point AS [Volume Mount Point], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (io_stall_read_ms/num_of_reads) + END AS [Read Latency], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (io_stall_write_ms/num_of_writes) + END AS [Write Latency], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE (io_stall/(num_of_reads + num_of_writes)) + END AS [Overall Latency], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (num_of_bytes_read/num_of_reads) + END AS [Avg Bytes/Read], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (num_of_bytes_written/num_of_writes) + END AS [Avg Bytes/Write], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE ((num_of_bytes_read + num_of_bytes_written)/(num_of_reads + num_of_writes)) + END AS [Avg Bytes/Transfer] +FROM (SELECT LEFT(UPPER(mf.physical_name), 2) AS Drive, SUM(num_of_reads) AS num_of_reads, + SUM(io_stall_read_ms) AS io_stall_read_ms, SUM(num_of_writes) AS num_of_writes, + SUM(io_stall_write_ms) AS io_stall_write_ms, SUM(num_of_bytes_read) AS num_of_bytes_read, + SUM(num_of_bytes_written) AS num_of_bytes_written, SUM(io_stall) AS io_stall, vs.volume_mount_point + FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS vfs + INNER JOIN sys.master_files AS mf WITH (NOLOCK) + ON vfs.database_id = mf.database_id AND vfs.file_id = mf.file_id + CROSS APPLY sys.dm_os_volume_stats(mf.database_id, mf.[file_id]) AS vs + GROUP BY LEFT(UPPER(mf.physical_name), 2), vs.volume_mount_point) AS tab +ORDER BY [Overall Latency] OPTION (RECOMPILE); +------ + +-- Shows you the drive-level latency for reads and writes, in milliseconds +-- Latency above 30-40ms is usually a problem +-- These latency numbers include all file activity against all SQL Server +-- database files on each drive since SQL Server was last started + + +-- Calculates average stalls per read, per write, and per total input/output for each database file (Query 31) (IO Latency by File) +SELECT DB_NAME(fs.database_id) AS [Database Name], CAST(fs.io_stall_read_ms/(1.0 + fs.num_of_reads) AS NUMERIC(10,1)) AS [avg_read_latency_ms], +CAST(fs.io_stall_write_ms/(1.0 + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_write_latency_ms], +CAST((fs.io_stall_read_ms + fs.io_stall_write_ms)/(1.0 + fs.num_of_reads + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_io_latency_ms], +CONVERT(DECIMAL(18,2), mf.size/128.0) AS [File Size (MB)], mf.physical_name, mf.type_desc, fs.io_stall_read_ms, fs.num_of_reads, +fs.io_stall_write_ms, fs.num_of_writes, fs.io_stall_read_ms + fs.io_stall_write_ms AS [io_stalls], fs.num_of_reads + fs.num_of_writes AS [total_io], +io_stall_queued_read_ms AS [Resource Governor Total Read IO Latency (ms)], io_stall_queued_write_ms AS [Resource Governor Total Write IO Latency (ms)] +FROM sys.dm_io_virtual_file_stats(null,null) AS fs +INNER JOIN sys.master_files AS mf WITH (NOLOCK) +ON fs.database_id = mf.database_id +AND fs.[file_id] = mf.[file_id] +ORDER BY avg_io_latency_ms DESC OPTION (RECOMPILE); +------ + +-- Helps determine which database files on the entire instance have the most I/O bottlenecks +-- This can help you decide whether certain LUNs are overloaded and whether you might +-- want to move some files to a different location or perhaps improve your I/O performance +-- These latency numbers include all file activity against each SQL Server +-- database file since SQL Server was last started + + +-- Look for I/O requests taking longer than 15 seconds in the six most recent SQL Server Error Logs (Query 32) (IO Warnings) +CREATE TABLE #IOWarningResults(LogDate datetime, ProcessInfo sysname, LogText nvarchar(1000)); + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 0, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 1, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 2, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 3, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 4, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 5, 1, N'taking longer than 15 seconds'; + +SELECT LogDate, ProcessInfo, LogText +FROM #IOWarningResults +ORDER BY LogDate DESC; + +DROP TABLE #IOWarningResults; +------ + +-- Finding 15 second I/O warnings in the SQL Server Error Log is useful evidence of +-- poor I/O performance (which might have many different causes) +-- Look to see if you see any patterns in the results (same files, same drives, same time of day, etc.) + +-- Diagnostics in SQL Server help detect stalled and stuck I/O operations +-- https://bit.ly/2qtaw73 + + + +-- Resource Governor Resource Pool information (Query 33) (RG Resource Pools) +SELECT pool_id, [Name], statistics_start_time, + min_memory_percent, max_memory_percent, + max_memory_kb/1024 AS [max_memory_mb], + used_memory_kb/1024 AS [used_memory_mb], + target_memory_kb/1024 AS [target_memory_mb], + min_iops_per_volume, max_iops_per_volume +FROM sys.dm_resource_governor_resource_pools WITH (NOLOCK) +OPTION (RECOMPILE); +------ + +-- sys.dm_resource_governor_resource_pools (Transact-SQL) +-- https://bit.ly/2MVU0Vy + + + +-- Recovery model, log reuse wait description, log file size, log usage size (Query 34) (Database Properties) +-- and compatibility level for all databases on instance +SELECT db.[name] AS [Database Name], SUSER_SNAME(db.owner_sid) AS [Database Owner], db.recovery_model_desc AS [Recovery Model], +db.state_desc, db.containment_desc, db.log_reuse_wait_desc AS [Log Reuse Wait Description], +CONVERT(DECIMAL(18,2), ls.cntr_value/1024.0) AS [Log Size (MB)], CONVERT(DECIMAL(18,2), lu.cntr_value/1024.0) AS [Log Used (MB)], +CAST(CAST(lu.cntr_value AS FLOAT) / CAST(ls.cntr_value AS FLOAT)AS DECIMAL(18,2)) * 100 AS [Log Used %], +db.[compatibility_level] AS [DB Compatibility Level], +db.is_mixed_page_allocation_on, db.page_verify_option_desc AS [Page Verify Option], +db.is_auto_create_stats_on, db.is_auto_update_stats_on, db.is_auto_update_stats_async_on, db.is_parameterization_forced, +db.snapshot_isolation_state_desc, db.is_read_committed_snapshot_on, db.is_auto_close_on, db.is_auto_shrink_on, +db.target_recovery_time_in_seconds, db.is_cdc_enabled, db.is_published, db.is_distributor, +db.group_database_id, db.replica_id,db.is_memory_optimized_elevate_to_snapshot_on, +db.delayed_durability_desc, db.is_auto_create_stats_incremental_on, +db.is_query_store_on, db.is_sync_with_backup, +db.is_supplemental_logging_enabled, db.is_remote_data_archive_enabled, +db.is_encrypted, de.encryption_state, de.percent_complete, de.key_algorithm, de.key_length +FROM sys.databases AS db WITH (NOLOCK) +INNER JOIN sys.dm_os_performance_counters AS lu WITH (NOLOCK) +ON db.name = lu.instance_name +INNER JOIN sys.dm_os_performance_counters AS ls WITH (NOLOCK) +ON db.name = ls.instance_name +LEFT OUTER JOIN sys.dm_database_encryption_keys AS de WITH (NOLOCK) +ON db.database_id = de.database_id +WHERE lu.counter_name LIKE N'Log File(s) Used Size (KB)%' +AND ls.counter_name LIKE N'Log File(s) Size (KB)%' +AND ls.cntr_value > 0 +ORDER BY db.[name] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- How many databases are on the instance? +-- What recovery models are they using? +-- What is the log reuse wait description? +-- How full are the transaction logs? +-- What compatibility level are the databases on? +-- What is the Page Verify Option? (should be CHECKSUM) +-- Is Auto Update Statistics Asynchronously enabled? +-- Is Delayed Durability enabled +-- Make sure auto_shrink and auto_close are not enabled! + +-- is_mixed_page_allocation_on is a new property for SQL Server 2016. Equivalent to TF 1118 for a user database +-- SQL Server 2016: Changes in default behavior for autogrow and allocations for tempdb and user databases +-- https://bit.ly/2evRZSR + +-- A non-zero value for target_recovery_time_in_seconds means that indirect checkpoint is enabled +-- If the setting has a zero value it indicates that automatic checkpoint is enabled + +-- Changes in SQL Server 2016 Checkpoint Behavior +-- https://bit.ly/2pdggk3 + + +-- Missing Indexes for all databases by Index Advantage (Query 35) (Missing Indexes All Databases) +SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +FORMAT(migs.last_user_seek, 'yyyy-MM-dd HH:mm:ss') AS [last_user_seek], +mid.[statement] AS [Database.Schema.Table], +COUNT(1) OVER(PARTITION BY mid.[statement]) AS [missing_indexes_for_table], +COUNT(1) OVER(PARTITION BY mid.[statement], equality_columns) AS [similar_missing_indexes_for_table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, +CONVERT(decimal(18,2), migs.avg_total_user_cost) AS [avg_total_user_cost], migs.avg_user_impact +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Getting missing index information for all of the databases on the instance is very useful +-- Look at last user seek time, number of user seeks to help determine source and importance +-- Also look at avg_user_impact and avg_total_user_cost to help determine importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + +-- SQL Server Index Design Guide +-- https://bit.ly/2qtZr4N + + + +-- Get VLF Counts for all databases on the instance (Query 36) (VLF Counts) +SELECT [name] AS [Database Name], [VLF Count] +FROM sys.databases AS db WITH (NOLOCK) +CROSS APPLY (SELECT file_id, COUNT(*) AS [VLF Count] + FROM sys.dm_db_log_info(db.database_id) + GROUP BY file_id) AS li +ORDER BY [VLF Count] DESC OPTION (RECOMPILE); +------ + +-- High VLF counts can affect write performance to the log file +-- and they can make full database restores and crash recovery take much longer +-- Try to keep your VLF counts under 200 in most cases (depending on log file size) + +-- Important change to VLF creation algorithm in SQL Server 2014 +-- https://bit.ly/2Hsjbg4 + +-- SQL Server Transaction Log Architecture and Management Guide +-- https://bit.ly/2JjmQRZ + + + +-- Get CPU utilization by database (Query 37) (CPU Usage by Database) +WITH DB_CPU_Stats +AS +(SELECT pa.DatabaseID, DB_Name(pa.DatabaseID) AS [Database Name], SUM(qs.total_worker_time/1000) AS [CPU_Time_Ms] + FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) + CROSS APPLY (SELECT CONVERT(int, value) AS [DatabaseID] + FROM sys.dm_exec_plan_attributes(qs.plan_handle) + WHERE attribute = N'dbid') AS pa + GROUP BY DatabaseID) +SELECT ROW_NUMBER() OVER(ORDER BY [CPU_Time_Ms] DESC) AS [CPU Rank], + [Database Name], [CPU_Time_Ms] AS [CPU Time (ms)], + CAST([CPU_Time_Ms] * 1.0 / SUM([CPU_Time_Ms]) OVER() * 100.0 AS DECIMAL(5, 2)) AS [CPU Percent] +FROM DB_CPU_Stats +WHERE DatabaseID <> 32767 -- ResourceDB +ORDER BY [CPU Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most CPU resources on the instance +-- Note: This only reflects CPU usage from the currently cached query plans + + +-- Get I/O utilization by database (Query 38) (IO Usage By Database) +WITH Aggregate_IO_Statistics +AS (SELECT DB_NAME(database_id) AS [Database Name], + CAST(SUM(num_of_bytes_read + num_of_bytes_written) / 1048576 AS DECIMAL(12, 2)) AS [ioTotalMB], + CAST(SUM(num_of_bytes_read ) / 1048576 AS DECIMAL(12, 2)) AS [ioReadMB], + CAST(SUM(num_of_bytes_written) / 1048576 AS DECIMAL(12, 2)) AS [ioWriteMB] + FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS [DM_IO_STATS] + GROUP BY database_id) +SELECT ROW_NUMBER() OVER (ORDER BY ioTotalMB DESC) AS [I/O Rank], + [Database Name], ioTotalMB AS [Total I/O (MB)], + CAST(ioTotalMB / SUM(ioTotalMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Total I/O %], + ioReadMB AS [Read I/O (MB)], + CAST(ioReadMB / SUM(ioReadMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Read I/O %], + ioWriteMB AS [Write I/O (MB)], + CAST(ioWriteMB / SUM(ioWriteMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Write I/O %] +FROM Aggregate_IO_Statistics +ORDER BY [I/O Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most I/O resources on the instance +-- These numbers are cumulative since the last service restart +-- They include all I/O activity, not just the nominal I/O workload + + +-- Get total buffer usage by database for current instance (Query 39) (Total Buffer Usage by Database) +-- This make take some time to run on a busy instance +WITH AggregateBufferPoolUsage +AS +(SELECT DB_NAME(database_id) AS [Database Name], +CAST(COUNT(*) * 8/1024.0 AS DECIMAL (10,2)) AS [CachedSize] +FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) +WHERE database_id <> 32767 -- ResourceDB +GROUP BY DB_NAME(database_id)) +SELECT ROW_NUMBER() OVER(ORDER BY CachedSize DESC) AS [Buffer Pool Rank], [Database Name], CachedSize AS [Cached Size (MB)], + CAST(CachedSize / SUM(CachedSize) OVER() * 100.0 AS DECIMAL(5,2)) AS [Buffer Pool Percent] +FROM AggregateBufferPoolUsage +ORDER BY [Buffer Pool Rank] OPTION (RECOMPILE); +------ + +-- Tells you how much memory (in the buffer pool) +-- is being used by each database on the instance + + +-- Get tempdb version store space usage by database (Query 40) (Version Store Space Usage) +SELECT DB_NAME(database_id) AS [Database Name], + reserved_page_count AS [Version Store Reserved Page Count], + reserved_space_kb/1024 AS [Version Store Reserved Space (MB)] +FROM sys.dm_tran_version_store_space_usage WITH (NOLOCK) +ORDER BY reserved_space_kb/1024 DESC OPTION (RECOMPILE); +------ + +-- sys.dm_tran_version_store_space_usage (Transact-SQL) +-- https://bit.ly/2vh3Bmk + + + + +-- Clear Wait Stats with this command +-- DBCC SQLPERF('sys.dm_os_wait_stats', CLEAR); + +-- Isolate top waits for server instance since last restart or wait statistics clear (Query 41) (Top Waits) +WITH [Waits] +AS (SELECT wait_type, wait_time_ms/ 1000.0 AS [WaitS], + (wait_time_ms - signal_wait_time_ms) / 1000.0 AS [ResourceS], + signal_wait_time_ms / 1000.0 AS [SignalS], + waiting_tasks_count AS [WaitCount], + 100.0 * wait_time_ms / SUM (wait_time_ms) OVER() AS [Percentage], + ROW_NUMBER() OVER(ORDER BY wait_time_ms DESC) AS [RowNum] + FROM sys.dm_os_wait_stats WITH (NOLOCK) + WHERE [wait_type] NOT IN ( + N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', + N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', + N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', N'CXCONSUMER', + N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', + N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', + N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', + N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', + N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', + N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', + N'MEMORY_ALLOCATION_EXT', N'ONDEMAND_TASK_QUEUE', + N'PARALLEL_REDO_DRAIN_WORKER', N'PARALLEL_REDO_LOG_CACHE', N'PARALLEL_REDO_TRAN_LIST', + N'PARALLEL_REDO_WORKER_SYNC', N'PARALLEL_REDO_WORKER_WAIT_WORK', + N'PREEMPTIVE_HADR_LEASE_MECHANISM', N'PREEMPTIVE_SP_SERVER_DIAGNOSTICS', + N'PREEMPTIVE_OS_LIBRARYOPS', N'PREEMPTIVE_OS_COMOPS', N'PREEMPTIVE_OS_CRYPTOPS', + N'PREEMPTIVE_OS_PIPEOPS', N'PREEMPTIVE_OS_AUTHENTICATIONOPS', + N'PREEMPTIVE_OS_GENERICOPS', N'PREEMPTIVE_OS_VERIFYTRUST', + N'PREEMPTIVE_OS_FILEOPS', N'PREEMPTIVE_OS_DEVICEOPS', N'PREEMPTIVE_OS_QUERYREGISTRY', + N'PREEMPTIVE_OS_WRITEFILE', + N'PREEMPTIVE_XE_CALLBACKEXECUTE', N'PREEMPTIVE_XE_DISPATCHER', + N'PREEMPTIVE_XE_GETTARGETSTATE', N'PREEMPTIVE_XE_SESSIONCOMMIT', + N'PREEMPTIVE_XE_TARGETINIT', N'PREEMPTIVE_XE_TARGETFINALIZE', + N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'PWAIT_DIRECTLOGCONSUMER_GETNEXT', + N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', + N'QDS_ASYNC_QUEUE', + N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', + N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', + N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', + N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', + N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', + N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', + N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', + N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'WAIT_XTP_RECOVERY', + N'XE_BUFFERMGR_ALLPROCESSED_EVENT', N'XE_DISPATCHER_JOIN', + N'XE_DISPATCHER_WAIT', N'XE_LIVE_TARGET_TVF', N'XE_TIMER_EVENT') + AND waiting_tasks_count > 0) +SELECT + MAX (W1.wait_type) AS [WaitType], + CAST (MAX (W1.Percentage) AS DECIMAL (5,2)) AS [Wait Percentage], + CAST ((MAX (W1.WaitS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgWait_Sec], + CAST ((MAX (W1.ResourceS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgRes_Sec], + CAST ((MAX (W1.SignalS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgSig_Sec], + CAST (MAX (W1.WaitS) AS DECIMAL (16,2)) AS [Wait_Sec], + CAST (MAX (W1.ResourceS) AS DECIMAL (16,2)) AS [Resource_Sec], + CAST (MAX (W1.SignalS) AS DECIMAL (16,2)) AS [Signal_Sec], + MAX (W1.WaitCount) AS [Wait Count], + CAST (N'https://www.sqlskills.com/help/waits/' + W1.wait_type AS XML) AS [Help/Info URL] +FROM Waits AS W1 +INNER JOIN Waits AS W2 +ON W2.RowNum <= W1.RowNum +GROUP BY W1.RowNum, W1.wait_type +HAVING SUM (W2.Percentage) - MAX (W1.Percentage) < 99 -- percentage threshold +OPTION (RECOMPILE); +------ + +-- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure + +-- SQL Server Wait Types Library (Paul Randal) +-- https://bit.ly/2ePzYO2 + +-- The SQL Server Wait Type Repository +-- https://bit.ly/1afzfjC + +-- Wait statistics, or please tell me where it hurts +-- https://bit.ly/2wsQHQE + +-- SQL Server 2005 Performance Tuning using the Waits and Queues +-- https://bit.ly/1o2NFoF + +-- sys.dm_os_wait_stats (Transact-SQL) +-- https://bit.ly/2Hjq9Yl + + + +-- Get a count of SQL connections by IP address (Query 42) (Connection Counts by IP Address) +SELECT ec.client_net_address, es.[program_name], es.[host_name], es.login_name, +COUNT(ec.session_id) AS [connection count] +FROM sys.dm_exec_sessions AS es WITH (NOLOCK) +INNER JOIN sys.dm_exec_connections AS ec WITH (NOLOCK) +ON es.session_id = ec.session_id +GROUP BY ec.client_net_address, es.[program_name], es.[host_name], es.login_name +ORDER BY ec.client_net_address, es.[program_name] OPTION (RECOMPILE); +------ + +-- This helps you figure where your database load is coming from +-- and verifies connectivity from other machines + +-- Solving Connectivity errors to SQL Server +-- https://bit.ly/2EgzoD0 + + + +-- Get Average Task Counts (run multiple times) (Query 43) (Avg Task Counts) +SELECT AVG(current_tasks_count) AS [Avg Task Count], +AVG(work_queue_count) AS [Avg Work Queue Count], +AVG(runnable_tasks_count) AS [Avg Runnable Task Count], +AVG(pending_disk_io_count) AS [Avg Pending DiskIO Count] +FROM sys.dm_os_schedulers WITH (NOLOCK) +WHERE scheduler_id < 255 OPTION (RECOMPILE); +------ + +-- Sustained values above 10 suggest further investigation in that area +-- High Avg Task Counts are often caused by blocking/deadlocking or other resource contention + +-- Sustained values above 1 suggest further investigation in that area +-- High Avg Runnable Task Counts are a good sign of CPU pressure +-- High Avg Pending DiskIO Counts are a sign of disk pressure + +-- How to Do Some Very Basic SQL Server Monitoring +-- https://bit.ly/2q3Btgt + + + +-- Detect blocking (run multiple times) (Query 44) (Detect Blocking) +SELECT t1.resource_type AS [lock type], DB_NAME(resource_database_id) AS [database], +t1.resource_associated_entity_id AS [blk object],t1.request_mode AS [lock req], -- lock requested +t1.request_session_id AS [waiter sid], t2.wait_duration_ms AS [wait time], -- spid of waiter +(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK) -- get sql for waiter +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) +WHERE r.session_id = t1.request_session_id) AS [waiter_batch], +(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, + (CASE WHEN r.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE r.statement_end_offset END - r.statement_start_offset)/2) +FROM sys.dm_exec_requests AS r WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt +WHERE r.session_id = t1.request_session_id) AS [waiter_stmt], -- statement blocked +t2.blocking_session_id AS [blocker sid], -- spid of blocker +(SELECT [text] FROM sys.sysprocesses AS p -- get sql for blocker +CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) +WHERE p.spid = t2.blocking_session_id) AS [blocker_batch] +FROM sys.dm_tran_locks AS t1 WITH (NOLOCK) +INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK) +ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE); +------ + +-- Helps troubleshoot blocking and deadlocking issues +-- The results will change from second to second on a busy system +-- You should run this query multiple times when you see signs of blocking + + + +-- Get CPU Utilization History for last 256 minutes (in one minute intervals) (Query 45) (CPU Utilization History) +DECLARE @ts_now bigint = (SELECT cpu_ticks/(cpu_ticks/ms_ticks) FROM sys.dm_os_sys_info WITH (NOLOCK)); + +SELECT TOP(256) SQLProcessUtilization AS [SQL Server Process CPU Utilization], + SystemIdle AS [System Idle Process], + 100 - SystemIdle - SQLProcessUtilization AS [Other Process CPU Utilization], + DATEADD(ms, -1 * (@ts_now - [timestamp]), GETDATE()) AS [Event Time] +FROM (SELECT record.value('(./Record/@id)[1]', 'int') AS record_id, + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') + AS [SystemIdle], + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', 'int') + AS [SQLProcessUtilization], [timestamp] + FROM (SELECT [timestamp], CONVERT(xml, record) AS [record] + FROM sys.dm_os_ring_buffers WITH (NOLOCK) + WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' + AND record LIKE N'%%') AS x) AS y +ORDER BY record_id DESC OPTION (RECOMPILE); +------ + +-- Look at the trend over the entire period +-- Also look at high sustained 'Other Process' CPU Utilization values +-- Note: This query sometimes gives inaccurate results (negative values) +-- on high core count (> 64 cores) systems + + +-- Get top total worker time queries for entire instance (Query 46) (Top Worker Time Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_worker_time AS [Total Worker Time], qs.min_worker_time AS [Min Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.max_worker_time AS [Max Worker Time], +qs.min_elapsed_time AS [Min Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.max_elapsed_time AS [Max Elapsed Time], +qs.min_logical_reads AS [Min Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.max_logical_reads AS [Max Logical Reads], +qs.execution_count AS [Execution Count], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + + +-- Helps you find the most expensive queries from a CPU perspective across the entire instance +-- Can also help track down parameter sniffing issues + + + +-- Page Life Expectancy (PLE) value for each NUMA node in current instance (Query 47) (PLE by NUMA Node) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], instance_name, cntr_value AS [Page Life Expectancy] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Buffer Node%' -- Handles named instances +AND counter_name = N'Page life expectancy' OPTION (RECOMPILE); +------ + +-- PLE is a good measurement of internal memory pressure +-- Higher PLE is better. Watch the trend over time, not the absolute value +-- This will only return one row for non-NUMA systems + +-- Page Life Expectancy isnt what you think +-- https://bit.ly/2EgynLa + + +-- Memory Grants Pending value for current instance (Query 48) (Memory Grants Pending) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], cntr_value AS [Memory Grants Pending] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Memory Manager%' -- Handles named instances +AND counter_name = N'Memory Grants Pending' OPTION (RECOMPILE); +------ + +-- Run multiple times, and run periodically if you suspect you are under memory pressure +-- Memory Grants Pending above zero for a sustained period is a very strong indicator of internal memory pressure + + +-- Memory Clerk Usage for instance (Query 49) (Memory Clerk Usage) +-- Look for high value for CACHESTORE_SQLCP (Ad-hoc query plans) +SELECT TOP(10) mc.[type] AS [Memory Clerk Type], + CAST((SUM(mc.pages_kb)/1024.0) AS DECIMAL (15,2)) AS [Memory Usage (MB)] +FROM sys.dm_os_memory_clerks AS mc WITH (NOLOCK) +GROUP BY mc.[type] +ORDER BY SUM(mc.pages_kb) DESC OPTION (RECOMPILE); +------ + +-- MEMORYCLERK_SQLBUFFERPOOL was new for SQL Server 2012. It should be your highest consumer of memory + +-- CACHESTORE_SQLCP SQL Plans +-- These are cached SQL statements or batches that aren't in stored procedures, functions and triggers +-- Watch out for high values for CACHESTORE_SQLCP +-- Enabling 'optimize for ad hoc workloads' at the instance level can help reduce this +-- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this + +-- CACHESTORE_OBJCP Object Plans +-- These are compiled plans for stored procedures, functions and triggers + +-- sys.dm_os_memory_clerks (Transact-SQL) +-- https://bit.ly/2H31xDR + + + +-- Find single-use, ad-hoc and prepared queries that are bloating the plan cache (Query 50) (Ad hoc Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], t.[text] AS [Query Text], +cp.objtype AS [Object Type], cp.cacheobjtype AS [Cache Object Type], +cp.size_in_bytes/1024 AS [Plan Size in KB] +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +WHERE cp.cacheobjtype = N'Compiled Plan' +AND cp.objtype IN (N'Adhoc', N'Prepared') +AND cp.usecounts = 1 +ORDER BY cp.size_in_bytes DESC, DB_NAME(t.[dbid]) OPTION (RECOMPILE); +------ + +-- Gives you the text, type and size of single-use ad-hoc and prepared queries that waste space in the plan cache +-- Enabling 'optimize for ad hoc workloads' for the instance can help (SQL Server 2008 and above only) +-- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this +-- Enabling forced parameterization for the database can help, but test first! + +-- Plan cache, adhoc workloads and clearing the single-use plan cache bloat +-- https://bit.ly/2EfYOkl + + +-- Get top total logical reads queries for entire instance (Query 51) (Top Logical Reads Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_logical_reads AS [Total Logical Reads], +qs.min_logical_reads AS [Min Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.max_logical_reads AS [Max Logical Reads], +qs.min_worker_time AS [Min Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.max_worker_time AS [Max Worker Time], +qs.min_elapsed_time AS [Min Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.max_elapsed_time AS [Max Elapsed Time], +qs.execution_count AS [Execution Count], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + + +-- Helps you find the most expensive queries from a memory perspective across the entire instance +-- Can also help track down parameter sniffing issues + + +-- Get top average elapsed time queries for entire instance (Query 52) (Top Avg Elapsed Time Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.min_elapsed_time, qs.max_elapsed_time, qs.last_elapsed_time, +qs.execution_count AS [Execution Count], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.total_physical_reads/qs.execution_count AS [Avg Physical Reads], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_elapsed_time/qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Helps you find the highest average elapsed time queries across the entire instance +-- Can also help track down parameter sniffing issues + + +-- Look at UDF execution statistics (Query 53) (UDF Stats by DB) +SELECT TOP (25) DB_NAME(database_id) AS [Database Name], + OBJECT_NAME(object_id, database_id) AS [Function Name], + total_worker_time, execution_count, total_elapsed_time, + total_elapsed_time/execution_count AS [avg_elapsed_time], + last_elapsed_time, last_execution_time, cached_time, [type_desc] +FROM sys.dm_exec_function_stats WITH (NOLOCK) +ORDER BY total_worker_time DESC OPTION (RECOMPILE); +------ + +-- sys.dm_exec_function_stats (Transact-SQL) +-- https://bit.ly/2q1Q6BM + + + +-- Database specific queries ***************************************************************** + +-- **** Please switch to a user database that you are interested in! ***** +--USE YourDatabaseName; -- make sure to change to an actual database on your instance, not the master system database +--GO + +-- Individual File Sizes and space available for current database (Query 54) (File Sizes and Space) +SELECT f.name AS [File Name] , f.physical_name AS [Physical Name], +CAST((f.size/128.0) AS DECIMAL(15,2)) AS [Total Size in MB], +CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) +AS [Available Space In MB], f.[file_id], fg.name AS [Filegroup Name], +f.is_percent_growth, f.growth, fg.is_default, fg.is_read_only, +fg.is_autogrow_all_files +FROM sys.database_files AS f WITH (NOLOCK) +LEFT OUTER JOIN sys.filegroups AS fg WITH (NOLOCK) +ON f.data_space_id = fg.data_space_id +ORDER BY f.[file_id] OPTION (RECOMPILE); +------ + +-- Look at how large and how full the files are and where they are located +-- Make sure the transaction log is not full!! + +-- is_autogrow_all_files was new for SQL Server 2016. Equivalent to TF 1117 for user databases + +-- SQL Server 2016: Changes in default behavior for autogrow and allocations for tempdb and user databases +-- https://bit.ly/2evRZSR + + +-- Log space usage for current database (Query 55) (Log Space Usage) +SELECT DB_NAME(lsu.database_id) AS [Database Name], db.recovery_model_desc AS [Recovery Model], + CAST(lsu.total_log_size_in_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Total Log Space (MB)], + CAST(lsu.used_log_space_in_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Used Log Space (MB)], + CAST(lsu.used_log_space_in_percent AS DECIMAL(10, 2)) AS [Used Log Space %], + CAST(lsu.log_space_in_bytes_since_last_backup/1048576.0 AS DECIMAL(10, 2)) AS [Used Log Space Since Last Backup (MB)], + db.log_reuse_wait_desc +FROM sys.dm_db_log_space_usage AS lsu WITH (NOLOCK) +INNER JOIN sys.databases AS db WITH (NOLOCK) +ON lsu.database_id = db.database_id +OPTION (RECOMPILE); +------ + +-- Look at log file size and usage, along with the log reuse wait description for the current database + +-- sys.dm_db_log_space_usage (Transact-SQL) +-- https://bit.ly/2H4MQw9 + + +-- Status of last VLF for current database (Query 56) (Last VLF Status) +SELECT TOP(1) DB_NAME(li.database_id) AS [Database Name], li.[file_id], + li.vlf_size_mb, li.vlf_sequence_number, li.vlf_active, li.vlf_status +FROM sys.dm_db_log_info(DB_ID()) AS li +ORDER BY vlf_sequence_number DESC OPTION (RECOMPILE); +------ + +-- Determine whether you will be able to shrink the transaction log file + +-- vlf_status Values +-- 0 is inactive +-- 1 is initialized but unused +-- 2 is active + +-- sys.dm_db_log_info (Transact-SQL) +-- https://bit.ly/2EQUU1v + + + +-- Get database scoped configuration values for current database (Query 57) (Database-scoped Configurations) +SELECT configuration_id, name, [value] AS [value_for_primary], value_for_secondary +FROM sys.database_scoped_configurations WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- This lets you see the value of these new properties for the current database + +-- Clear plan cache for current database +-- ALTER DATABASE SCOPED CONFIGURATION CLEAR PROCEDURE_CACHE; + +-- ALTER DATABASE SCOPED CONFIGURATION (Transact-SQL) +-- https://bit.ly/2sOH7nb + + +-- I/O Statistics by file for the current database (Query 58) (IO Stats By File) +SELECT DB_NAME(DB_ID()) AS [Database Name], df.name AS [Logical Name], vfs.[file_id], df.type_desc, +df.physical_name AS [Physical Name], CAST(vfs.size_on_disk_bytes/1048576.0 AS DECIMAL(16, 2)) AS [Size on Disk (MB)], +vfs.num_of_reads, vfs.num_of_writes, vfs.io_stall_read_ms, vfs.io_stall_write_ms, +CAST(100. * vfs.io_stall_read_ms/(vfs.io_stall_read_ms + vfs.io_stall_write_ms) AS DECIMAL(16,1)) AS [IO Stall Reads Pct], +CAST(100. * vfs.io_stall_write_ms/(vfs.io_stall_write_ms + vfs.io_stall_read_ms) AS DECIMAL(16,1)) AS [IO Stall Writes Pct], +(vfs.num_of_reads + vfs.num_of_writes) AS [Writes + Reads], +CAST(vfs.num_of_bytes_read/1048576.0 AS DECIMAL(16, 2)) AS [MB Read], +CAST(vfs.num_of_bytes_written/1048576.0 AS DECIMAL(16, 2)) AS [MB Written], +CAST(100. * vfs.num_of_reads/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(16,1)) AS [# Reads Pct], +CAST(100. * vfs.num_of_writes/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(16,1)) AS [# Write Pct], +CAST(100. * vfs.num_of_bytes_read/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(16,1)) AS [Read Bytes Pct], +CAST(100. * vfs.num_of_bytes_written/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(16,1)) AS [Written Bytes Pct] +FROM sys.dm_io_virtual_file_stats(DB_ID(), NULL) AS vfs +INNER JOIN sys.database_files AS df WITH (NOLOCK) +ON vfs.[file_id]= df.[file_id] OPTION (RECOMPILE); +------ + +-- This helps you characterize your workload better from an I/O perspective for this database +-- It helps you determine whether you has an OLTP or DW/DSS type of workload + + + +-- Get most frequently executed queries for this database (Query 59) (Query Execution Counts) +SELECT TOP(50) LEFT(t.[text], 50) AS [Short Query Text], qs.execution_count AS [Execution Count], +qs.total_logical_reads AS [Total Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.total_worker_time AS [Total Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.total_elapsed_time AS [Total Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +WHERE t.dbid = DB_ID() +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + + +-- Queries 60 through 65 are the "Bad Man List" for stored procedures + +-- Top Cached SPs By Execution Count (Query 60) (SP Execution Counts) +SELECT TOP(100) p.name AS [SP Name], qs.execution_count AS [Execution Count], +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Tells you which cached stored procedures are called the most often +-- This helps you characterize and baseline your workload + + +-- Top Cached SPs By Avg Elapsed Time (Query 61) (SP Avg Elapsed Time) +SELECT TOP(25) p.name AS [SP Name], qs.min_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +qs.max_elapsed_time, qs.last_elapsed_time, qs.total_elapsed_time, qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], +qs.total_worker_time AS [TotalWorkerTime], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find high average elapsed time cached stored procedures that +-- may be easy to optimize with standard query tuning techniques + + + +-- Top Cached SPs By Total Worker time. Worker time relates to CPU cost (Query 62) (SP Worker Time) +SELECT TOP(25) p.name AS [SP Name], qs.total_worker_time AS [TotalWorkerTime], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a CPU perspective +-- You should look at this if you see signs of CPU pressure + + +-- Top Cached SPs By Total Logical Reads. Logical reads relate to memory pressure (Query 63) (SP Logical Reads) +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_reads AS [TotalLogicalReads], +qs.total_logical_reads/qs.execution_count AS [AvgLogicalReads],qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a memory perspective +-- You should look at this if you see signs of memory pressure + + +-- Top Cached SPs By Total Physical Reads. Physical reads relate to disk read I/O pressure (Query 64) (SP Physical Reads) +SELECT TOP(25) p.name AS [SP Name],qs.total_physical_reads AS [TotalPhysicalReads], +qs.total_physical_reads/qs.execution_count AS [AvgPhysicalReads], qs.execution_count, +qs.total_logical_reads,qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND qs.total_physical_reads > 0 +ORDER BY qs.total_physical_reads DESC, qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a read I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + + +-- Top Cached SPs By Total Logical Writes (Query 65) (SP Logical Writes) +-- Logical writes relate to both memory and disk I/O pressure +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_writes AS [TotalLogicalWrites], +qs.total_logical_writes/qs.execution_count AS [AvgLogicalWrites], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND qs.total_logical_writes > 0 +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_logical_writes DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a write I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + +-- Lists the top statements by average input/output usage for the current database (Query 66) (Top IO Statements) +SELECT TOP(50) OBJECT_NAME(qt.objectid, dbid) AS [SP Name], +(qs.total_logical_reads + qs.total_logical_writes) /qs.execution_count AS [Avg IO], qs.execution_count AS [Execution Count], +SUBSTRING(qt.[text],qs.statement_start_offset/2, + (CASE + WHEN qs.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE qs.statement_end_offset + END - qs.statement_start_offset)/2) AS [Query Text] +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt +WHERE qt.[dbid] = DB_ID() +ORDER BY [Avg IO] DESC OPTION (RECOMPILE); +------ + +-- Helps you find the most expensive statements for I/O by SP + + + +-- Possible Bad NC Indexes (writes > reads) (Query 67) (Bad NC Indexes) +SELECT OBJECT_NAME(s.[object_id]) AS [Table Name], i.name AS [Index Name], i.index_id, +i.is_disabled, i.is_hypothetical, i.has_filter, i.fill_factor, +s.user_updates AS [Total Writes], s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], +s.user_updates - (s.user_seeks + s.user_scans + s.user_lookups) AS [Difference] +FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON s.[object_id] = i.[object_id] +AND i.index_id = s.index_id +WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 +AND s.database_id = DB_ID() +AND s.user_updates > (s.user_seeks + s.user_scans + s.user_lookups) +AND i.index_id > 1 AND i.[type_desc] = N'NONCLUSTERED' +AND i.is_primary_key = 0 AND i.is_unique_constraint = 0 AND i.is_unique = 0 +ORDER BY [Difference] DESC, [Total Writes] DESC, [Total Reads] ASC OPTION (RECOMPILE); +------ + +-- Look for indexes with high numbers of writes and zero or very low numbers of reads +-- Consider your complete workload, and how long your instance has been running +-- Investigate further before dropping an index! + + +-- Missing Indexes for current database by Index Advantage (Query 68) (Missing Indexes) +SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], +COUNT(1) OVER(PARTITION BY mid.[statement]) AS [missing_indexes_for_table], +COUNT(1) OVER(PARTITION BY mid.[statement], equality_columns) AS [similar_missing_indexes_for_table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, +CONVERT(decimal(18,2), migs.avg_total_user_cost) AS [avg_total_user_cost], migs.avg_user_impact, +OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows] +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON p.[object_id] = mid.[object_id] +WHERE mid.database_id = DB_ID() +AND p.index_id < 2 +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Look at index advantage, last user seek time, number of user seeks to help determine source and importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + + +-- Find missing index warnings for cached plans in the current database (Query 69) (Missing Index Warnings) +-- Note: This query could take some time on a busy instance +SELECT TOP(25) OBJECT_NAME(objectid) AS [ObjectName], + cp.objtype, cp.usecounts, cp.size_in_bytes, query_plan +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp +WHERE CAST(query_plan AS NVARCHAR(MAX)) LIKE N'%MissingIndex%' +AND dbid = DB_ID() +ORDER BY cp.usecounts DESC OPTION (RECOMPILE); +------ + +-- Helps you connect missing indexes to specific stored procedures or queries +-- This can help you decide whether to add them or not + + +-- Breaks down buffers used by current database by object (table, index) in the buffer cache (Query 70) (Buffer Usage) +-- Note: This query could take some time on a busy instance +SELECT OBJECT_NAME(p.[object_id]) AS [Object Name], p.index_id, +CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], +COUNT(*) AS [BufferCount], p.[Rows] AS [Row Count], +p.data_compression_desc AS [Compression Type] +FROM sys.allocation_units AS a WITH (NOLOCK) +INNER JOIN sys.dm_os_buffer_descriptors AS b WITH (NOLOCK) +ON a.allocation_unit_id = b.allocation_unit_id +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON a.container_id = p.hobt_id +WHERE b.database_id = CONVERT(int, DB_ID()) +AND p.[object_id] > 100 +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'plan_%' +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'sys%' +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'xml_index_nodes%' +GROUP BY p.[object_id], p.index_id, p.data_compression_desc, p.[Rows] +ORDER BY [BufferCount] DESC OPTION (RECOMPILE); +------ + +-- Tells you what tables and indexes are using the most memory in the buffer cache +-- It can help identify possible candidates for data compression + + +-- Get Table names, row counts, and compression status for clustered index or heap (Query 71) (Table Sizes) +SELECT SCHEMA_NAME(o.Schema_ID) AS [Schema Name], OBJECT_NAME(p.object_id) AS [ObjectName], +SUM(p.Rows) AS [RowCount], data_compression_desc AS [CompressionType] +FROM sys.partitions AS p WITH (NOLOCK) +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON p.object_id = o.object_id +WHERE index_id < 2 --ignore the partitions from the non-clustered index if any +AND OBJECT_NAME(p.object_id) NOT LIKE N'sys%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'spt_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'queue_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filestream_tombstone%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'fulltext%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'ifts_comp_fragment%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filetable_updates%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'xml_index_nodes%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'sqlagent_job%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'plan_persist%' +GROUP BY SCHEMA_NAME(o.Schema_ID), p.object_id, data_compression_desc +ORDER BY SUM(p.Rows) DESC OPTION (RECOMPILE); +------ + +-- Gives you an idea of table sizes, and possible data compression opportunities + + + +-- Get some key table properties (Query 72) (Table Properties) +SELECT OBJECT_NAME(t.[object_id]) AS [ObjectName], p.[rows] AS [Table Rows], p.index_id, + p.data_compression_desc AS [Index Data Compression], + t.create_date, t.lock_on_bulk_load, t.is_replicated, t.has_replication_filter, + t.is_tracked_by_cdc, t.lock_escalation_desc, t.is_filetable, + t.is_memory_optimized, t.durability_desc, + t.temporal_type_desc, t.is_remote_data_archive_enabled, t.is_external -- new for SQL Server 2016 +FROM sys.tables AS t WITH (NOLOCK) +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON t.[object_id] = p.[object_id] +WHERE OBJECT_NAME(t.[object_id]) NOT LIKE N'sys%' +ORDER BY OBJECT_NAME(t.[object_id]), p.index_id OPTION (RECOMPILE); +------ + +-- Gives you some good information about your tables +-- is_memory_optimized and durability_desc were new in SQL Server 2014 +-- temporal_type_desc, is_remote_data_archive_enabled, is_external were new in SQL Server 2016 + +-- sys.tables (Transact-SQL) +-- https://bit.ly/2Gk7998 + + + +-- When were Statistics last updated on all indexes? (Query 73) (Statistics Update) +SELECT SCHEMA_NAME(o.Schema_ID) + N'.' + o.[NAME] AS [Object Name], o.[type_desc] AS [Object Type], + i.[name] AS [Index Name], STATS_DATE(i.[object_id], i.index_id) AS [Statistics Date], + s.auto_created, s.no_recompute, s.user_created, s.is_incremental, s.is_temporary, + st.row_count, st.used_page_count +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON o.[object_id] = i.[object_id] +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.stats_id +INNER JOIN sys.dm_db_partition_stats AS st WITH (NOLOCK) +ON o.[object_id] = st.[object_id] +AND i.[index_id] = st.[index_id] +WHERE o.[type] IN ('U', 'V') +AND st.row_count > 0 +ORDER BY STATS_DATE(i.[object_id], i.index_id) DESC OPTION (RECOMPILE); +------ + +-- Helps discover possible problems with out-of-date statistics +-- Also gives you an idea which indexes are the most active + +-- sys.stats (Transact-SQL) +-- https://bit.ly/2GyAxrn + +-- UPDATEs to Statistics (Erin Stellato) +-- https://bit.ly/2vhrYQy + + + + +-- Look at most frequently modified indexes and statistics (Query 74) (Volatile Indexes) +SELECT o.[name] AS [Object Name], o.[object_id], o.[type_desc], s.[name] AS [Statistics Name], + s.stats_id, s.no_recompute, s.auto_created, s.is_incremental, s.is_temporary, + sp.modification_counter, sp.[rows], sp.rows_sampled, sp.last_updated +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON s.object_id = o.object_id +CROSS APPLY sys.dm_db_stats_properties(s.object_id, s.stats_id) AS sp +WHERE o.[type_desc] NOT IN (N'SYSTEM_TABLE', N'INTERNAL_TABLE') +AND sp.modification_counter > 0 +ORDER BY sp.modification_counter DESC, o.name OPTION (RECOMPILE); +------ + +-- This helps you understand your workload and make better decisions about +-- things like data compression and adding new indexes to a table + + + +-- Get fragmentation info for all indexes above a certain size in the current database (Query 75) (Index Fragmentation) +-- Note: This query could take some time on a very large database +SELECT DB_NAME(ps.database_id) AS [Database Name], SCHEMA_NAME(o.[schema_id]) AS [Schema Name], +OBJECT_NAME(ps.OBJECT_ID) AS [Object Name], i.[name] AS [Index Name], ps.index_id, +ps.index_type_desc, ps.avg_fragmentation_in_percent, +ps.fragment_count, ps.page_count, i.fill_factor, i.has_filter, +i.filter_definition, i.[allow_page_locks] +FROM sys.dm_db_index_physical_stats(DB_ID(),NULL, NULL, NULL , N'LIMITED') AS ps +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ps.[object_id] = i.[object_id] +AND ps.index_id = i.index_id +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON i.[object_id] = o.[object_id] +WHERE ps.database_id = DB_ID() +AND ps.page_count > 2500 +ORDER BY ps.avg_fragmentation_in_percent DESC OPTION (RECOMPILE); +------ + +-- Helps determine whether you have framentation in your relational indexes +-- and how effective your index maintenance strategy is + + +--- Index Read/Write stats (all tables in current DB) ordered by Reads (Query 76) (Overall Index Usage - Reads) +SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.[name] AS [IndexName], i.index_id, + s.user_seeks, s.user_scans, s.user_lookups, + s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], + s.user_updates AS [Writes], + i.[type_desc] AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, + s.last_user_scan, s.last_user_lookup, s.last_user_seek +FROM sys.indexes AS i WITH (NOLOCK) +LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 +ORDER BY s.user_seeks + s.user_scans + s.user_lookups DESC OPTION (RECOMPILE); -- Order by reads +------ + +-- Show which indexes in the current database are most active for Reads + + +--- Index Read/Write stats (all tables in current DB) ordered by Writes (Query 77) (Overall Index Usage - Writes) +SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.[name] AS [IndexName], i.index_id, + s.user_updates AS [Writes], s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], + i.[type_desc] AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, + s.last_system_update, s.last_user_update +FROM sys.indexes AS i WITH (NOLOCK) +LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 +ORDER BY s.user_updates DESC OPTION (RECOMPILE); -- Order by writes +------ + +-- Show which indexes in the current database are most active for Writes + + +-- Get in-memory OLTP index usage (Query 78) (XTP Index Usage) +SELECT OBJECT_NAME(i.[object_id]) AS [Object Name], i.index_id, i.[name] AS [Index Name], + i.[type_desc], xis.scans_started, xis.scans_retries, + xis.rows_touched, xis.rows_returned +FROM sys.dm_db_xtp_index_stats AS xis WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON i.[object_id] = xis.[object_id] +AND i.index_id = xis.index_id +ORDER BY OBJECT_NAME(i.[object_id]) OPTION (RECOMPILE); +------ + +-- This gives you some index usage statistics for in-memory OLTP +-- Returns no data if you are not using in-memory OLTP + +-- Guidelines for Using Indexes on Memory-Optimized Tables +-- https://bit.ly/2GCP8lF + + + +-- Look at Columnstore index physical statistics (Query 79) (Columnstore Index Physical Stat) +SELECT OBJECT_NAME(ps.object_id) AS [TableName], + i.[name] AS [IndexName], ps.index_id, ps.partition_number, + ps.delta_store_hobt_id, ps.state_desc, ps.total_rows, ps.size_in_bytes, + ps.trim_reason_desc, ps.generation, ps.transition_to_compressed_state_desc, + ps.has_vertipaq_optimization, ps.deleted_rows, + 100 * (ISNULL(ps.deleted_rows, 0))/ps.total_rows AS [Fragmentation] +FROM sys.dm_db_column_store_row_group_physical_stats AS ps WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ps.object_id = i.object_id +AND ps.index_id = i.index_id +ORDER BY ps.object_id, ps.partition_number, ps.row_group_id OPTION (RECOMPILE); +------ + +-- sys.dm_db_column_store_row_group_physical_stats (Transact-SQL) +-- https://bit.ly/2q276XQ + + + +-- Get lock waits for current database (Query 80) (Lock Waits) +SELECT o.name AS [table_name], i.name AS [index_name], ios.index_id, ios.partition_number, + SUM(ios.row_lock_wait_count) AS [total_row_lock_waits], + SUM(ios.row_lock_wait_in_ms) AS [total_row_lock_wait_in_ms], + SUM(ios.page_lock_wait_count) AS [total_page_lock_waits], + SUM(ios.page_lock_wait_in_ms) AS [total_page_lock_wait_in_ms], + SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) AS [total_lock_wait_in_ms] +FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) AS ios +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON ios.[object_id] = o.[object_id] +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ios.[object_id] = i.[object_id] +AND ios.index_id = i.index_id +WHERE o.[object_id] > 100 +GROUP BY o.name, i.name, ios.index_id, ios.partition_number +HAVING SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) > 0 +ORDER BY total_lock_wait_in_ms DESC OPTION (RECOMPILE); +------ + +-- This query is helpful for troubleshooting blocking and deadlocking issues + + + +-- Look at UDF execution statistics (Query 81) (UDF Statistics) +SELECT OBJECT_NAME(object_id) AS [Function Name], execution_count, + total_worker_time, total_logical_reads, total_physical_reads, total_elapsed_time, + total_elapsed_time/execution_count AS [avg_elapsed_time], + FORMAT(cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +FROM sys.dm_exec_function_stats WITH (NOLOCK) +WHERE database_id = DB_ID() +ORDER BY total_worker_time DESC OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Helps you investigate scalar UDF performance issues +-- Does not return information for table valued functions + +-- sys.dm_exec_function_stats (Transact-SQL) +-- https://bit.ly/2q1Q6BM + + +-- Get QueryStore Options for this database (Query 82) (QueryStore Options) +SELECT actual_state_desc, desired_state_desc, [interval_length_minutes], + current_storage_size_mb, [max_storage_size_mb], + query_capture_mode_desc, size_based_cleanup_mode_desc +FROM sys.database_query_store_options WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Requires that Query Store is enabled for this database + +-- Tuning Workload Performance with Query Store +-- https://bit.ly/1kHSl7w + + +-- Get highest aggregate duration queries over last hour (Query 83) (High Aggregate Duration Queries) +WITH AggregatedDurationLastHour +AS +(SELECT q.query_id, SUM(count_executions * avg_duration) AS total_duration, + COUNT (distinct p.plan_id) AS number_of_plans + FROM sys.query_store_query_text AS qt WITH (NOLOCK) + INNER JOIN sys.query_store_query AS q WITH (NOLOCK) + ON qt.query_text_id = q.query_text_id + INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) + ON q.query_id = p.query_id + INNER JOIN sys.query_store_runtime_stats AS rs WITH (NOLOCK) + ON rs.plan_id = p.plan_id + INNER JOIN sys.query_store_runtime_stats_interval AS rsi WITH (NOLOCK) + ON rsi.runtime_stats_interval_id = rs.runtime_stats_interval_id + WHERE rsi.start_time >= DATEADD(hour, -1, GETUTCDATE()) + AND rs.execution_type_desc = N'Regular' + GROUP BY q.query_id), +OrderedDuration AS +(SELECT query_id, total_duration, number_of_plans, + ROW_NUMBER () OVER (ORDER BY total_duration DESC, query_id) AS RN + FROM AggregatedDurationLastHour) +SELECT OBJECT_NAME(q.object_id) AS [Containing Object], qt.query_sql_text, +od.total_duration AS [Total Duration (microsecs)], +od.number_of_plans AS [Plan Count], +p.is_forced_plan, p.is_parallel_plan, p.is_trivial_plan, +q.query_parameterization_type_desc, p.[compatibility_level], +p.last_compile_start_time, q.last_execution_time, +CONVERT(xml, p.query_plan) AS query_plan_xml +FROM OrderedDuration AS od +INNER JOIN sys.query_store_query AS q WITH (NOLOCK) +ON q.query_id = od.query_id +INNER JOIN sys.query_store_query_text AS qt WITH (NOLOCK) +ON q.query_text_id = qt.query_text_id +INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) +ON q.query_id = p.query_id +WHERE od.RN <= 50 +ORDER BY total_duration DESC OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Requires that QueryStore is enabled for this database + + + +-- Get highest aggregate CPU time queries over last hour (Query 84) (High Aggregate CPU Queries) +WITH AggregatedCPULastHour +AS +(SELECT q.query_id, SUM(rs.count_executions * rs.avg_cpu_time) AS total_cpu_time, + COUNT (DISTINCT p.plan_id) AS number_of_plans + FROM sys.query_store_query_text AS qt WITH (NOLOCK) + INNER JOIN sys.query_store_query AS q WITH (NOLOCK) + ON qt.query_text_id = q.query_text_id + INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) + ON q.query_id = p.query_id + INNER JOIN sys.query_store_runtime_stats AS rs WITH (NOLOCK) + ON rs.plan_id = p.plan_id + INNER JOIN sys.query_store_runtime_stats_interval AS rsi WITH (NOLOCK) + ON rsi.runtime_stats_interval_id = rs.runtime_stats_interval_id + WHERE rsi.start_time >= DATEADD(hour, -1, GETUTCDATE()) + AND rs.execution_type_desc = N'Regular' + GROUP BY q.query_id), OrderedDuration +AS +(SELECT query_id, total_cpu_time, number_of_plans, + ROW_NUMBER () OVER (ORDER BY total_cpu_time DESC, query_id) AS RN + FROM AggregatedCPULastHour) +SELECT OBJECT_NAME(q.object_id) AS [Containing Object], qt.query_sql_text, +od.total_cpu_time AS [Total CPU Time (microsecs)], +od.number_of_plans AS [Plan Count], +p.is_forced_plan, p.is_parallel_plan, p.is_trivial_plan, +q.query_parameterization_type_desc, p.[compatibility_level], +p.last_compile_start_time, +q.last_execution_time, +CONVERT(xml, p.query_plan) AS query_plan_xml +FROM OrderedDuration AS od +INNER JOIN sys.query_store_query AS q WITH (NOLOCK) +ON q.query_id = od.query_id +INNER JOIN sys.query_store_query_text AS qt WITH (NOLOCK) +ON q.query_text_id = qt.query_text_id +INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) +ON q.query_id = p.query_id +WHERE od.RN <= 50 +ORDER BY od.total_cpu_time DESC OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Requires that QueryStore is enabled for this database + + + + +-- Get input buffer information for the current database (Query 85) (Input Buffer) +SELECT es.session_id, DB_NAME(es.database_id) AS [Database Name], + es.login_time, es.cpu_time, es.logical_reads, es.memory_usage, + es.[status], ib.event_info AS [Input Buffer] +FROM sys.dm_exec_sessions AS es WITH (NOLOCK) +CROSS APPLY sys.dm_exec_input_buffer(es.session_id, NULL) AS ib +WHERE es.database_id = DB_ID() +AND es.session_id > 50 +AND es.session_id <> @@SPID OPTION (RECOMPILE); +------ + +-- Gives you input buffer information from all non-system sessions for the current database +-- Replaces DBCC INPUTBUFFER + +-- New DMF for retrieving input buffer in SQL Server +-- https://bit.ly/2uHKMbz + +-- sys.dm_exec_input_buffer (Transact-SQL) +-- https://bit.ly/2J5Hf9q + + + +-- Look at recent Full backups for the current database (Query 86) (Recent Full Backups) +SELECT TOP (30) bs.machine_name, bs.server_name, bs.database_name AS [Database Name], bs.recovery_model, +CONVERT (BIGINT, bs.backup_size / 1048576 ) AS [Uncompressed Backup Size (MB)], +CONVERT (BIGINT, bs.compressed_backup_size / 1048576 ) AS [Compressed Backup Size (MB)], +CONVERT (NUMERIC (20,2), (CONVERT (FLOAT, bs.backup_size) / +CONVERT (FLOAT, bs.compressed_backup_size))) AS [Compression Ratio], bs.has_backup_checksums, bs.is_copy_only, bs.encryptor_type, +DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) AS [Backup Elapsed Time (sec)], +bs.backup_finish_date AS [Backup Finish Date], bmf.physical_device_name AS [Backup Location], bmf.physical_block_size +FROM msdb.dbo.backupset AS bs WITH (NOLOCK) +INNER JOIN msdb.dbo.backupmediafamily AS bmf WITH (NOLOCK) +ON bs.media_set_id = bmf.media_set_id +WHERE bs.database_name = DB_NAME(DB_ID()) +AND bs.[type] = 'D' -- Change to L if you want Log backups +ORDER BY bs.backup_finish_date DESC OPTION (RECOMPILE); +------ + +-- Are your backup sizes and times changing over time? +-- Are you using backup compression? +-- Are you using backup checksums? +-- Are you doing copy_only backups? +-- Are you doing encrypted backups? +-- Have you done any backup tuning with striped backups, or changing the parameters of the backup command? + +-- In SQL Server 2016, native SQL Server backup compression actually works +-- much better with databases that are using TDE than in previous versions +-- https://bit.ly/28Rpb2x + + +-- These five Pluralsight Courses go into more detail about how to run these queries and interpret the results + +-- SQL Server 2017: Diagnosing Performance Issues with DMVs +-- https://bit.ly/2FqCeti + +-- SQL Server 2017: Diagnosing Configuration Issues with DMVs +-- https://bit.ly/2MSUDUL + +-- SQL Server 2014 DMV Diagnostic Queries Part 1 +-- https://bit.ly/2plxCer + +-- SQL Server 2014 DMV Diagnostic Queries Part 2 +-- https://bit.ly/2IuJpzI + +-- SQL Server 2014 DMV Diagnostic Queries Part 3 +-- https://bit.ly/2FIlCPb + + + +-- Sign up for Microsoft Visual Studio Dev Essentials and get a free three month pass to Pluralsight + +-- Microsoft Visual Studio Dev Essentials +-- http://bit.ly/1q6xbDL + + +-- Sign up for Microsoft Azure Essentials and get lots of free Azure usage credits, MCP exam voucher, three month Pluralsight subscription + +-- Microsoft Azure Essentials +-- https://bit.ly/2JMWe8x + + +-- August 2017 blog series about upgrading and migrating to SQL Server 2016/2017 +-- https://bit.ly/2ftKVrX diff --git a/Scripts/SQL Server 2017 Diagnostic Information Queries.sql b/Scripts/SQL Server 2017 Diagnostic Information Queries.sql new file mode 100644 index 00000000..c897183e --- /dev/null +++ b/Scripts/SQL Server 2017 Diagnostic Information Queries.sql @@ -0,0 +1,2129 @@ + +-- SQL Server 2017 Diagnostic Information Queries +-- Glenn Berry +-- Last Modified: February 1, 2019 +-- https://www.sqlskills.com/blogs/glenn/ +-- http://sqlserverperformance.wordpress.com/ +-- Twitter: GlennAlanBerry + +-- Please listen to my Pluralsight courses +-- https://www.pluralsight.com/author/glenn-berry + +-- If you want to find all of our SQLskills SQL101 blog posts, check out https://bit.ly/2qLwfXW + + +-- Please make sure you are using the correct version of these diagnostic queries for your version of SQL Server + + +-- If you like PowerShell, there is a very useful community solution for running these queries in an automated fashion +-- https://dbatools.io/ + +-- Invoke-DbaDiagnosticQuery +-- https://dbatools.io/functions/invoke-dbadiagnosticquery/ + + +--****************************************************************************** +--* Copyright (C) 2019 Glenn Berry, SQLskills.com +--* All rights reserved. +--* +--* For more scripts and sample code, check out +--* https://www.sqlskills.com/blogs/glenn +--* +--* You may alter this code for your own *non-commercial* purposes. You may +--* republish altered code as long as you include this copyright and give due credit. +--* +--* +--* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF +--* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED +--* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A +--* PARTICULAR PURPOSE. +--* +--****************************************************************************** + +-- Check the major product version to see if it is SQL Server 2017 CTP 1 or greater +IF NOT EXISTS (SELECT * WHERE CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')) LIKE '14%') + BEGIN + DECLARE @ProductVersion varchar(128) = CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')); + RAISERROR ('Script does not match the ProductVersion [%s] of this instance. Many of these queries may not work on this version.' , 18 , 16 , @ProductVersion); + END + ELSE + PRINT N'You have the correct major version of SQL Server for this diagnostic information script'; + + +-- Instance level queries ******************************* + +-- SQL and OS Version information for current instance (Query 1) (Version Info) +SELECT @@SERVERNAME AS [Server Name], @@VERSION AS [SQL Server and OS Version Info]; +------ + +-- SQL Server 2017 Builds +-- Build Description Release Date URL to KB Article +-- 14.0.1.246 CTP 1.0 11/30/2016 +-- 14.0.100.187 CTP 1.1 12/16/2016 +-- 14.0.200.24 CTP 1.2 1/19/2017 +-- 14.0.304.138 CTP 1.3 2/17/2017 +-- 14.0.405.198 CTP 1.4 3/20/2017 +-- 14.0.500.272 CTP 2.0 4/19/2017 +-- 14.0.600.250 CTP 2.1 5/17/2017 +-- 14.0.800.90 RC1 7/17/2017 +-- 14.0.900.75 RC2 8/2/2017 +-- 14.0.1000.169 RTM 10/2/2017 +-- 14.0.3006.16 CU1 10/24/2017 https://support.microsoft.com/en-us/help/4038634 +-- 14.0.3008.27 CU2 11/28/2017 https://support.microsoft.com/en-us/help/4052574 +-- 14.0.3015.40 CU3 1/4/2018 https://support.microsoft.com/en-us/help/4052987 +-- 14.0.3022.28 CU4 2/20/2018 https://support.microsoft.com/en-us/help/4056498 +-- 14.0.3023.8 CU5 3/20/2018 https://support.microsoft.com/en-us/help/4092643 +-- 14.0.3025.34 CU6 4/17/2018 https://support.microsoft.com/en-us/help/4101464 +-- 14.0.3026.27 CU7 5/23/2018 https://support.microsoft.com/en-us/help/4229789 +-- 14.0.3029.16 CU8 6/19/2018 https://support.microsoft.com/en-us/help/4338363 +-- 14.0.3030.27 CU9 7/19/2018 https://support.microsoft.com/en-us/help/4341265 +-- 14.0.3035.2 CU9 + Security Update 8/13/2018 https://www.microsoft.com/en-us/download/details.aspx?id=57263 +-- 14.0.3037.1 CU10 8/27/2018 https://support.microsoft.com/en-us/help/4342123/cumulative-update-10-for-sql-server-2017 +-- 14.0.3038.14 CU11 9/20/2018 https://support.microsoft.com/en-us/help/4462262 +-- 14.0.3045.24 CU12 10/23/2018 https://support.microsoft.com/en-us/help/4464082/cumulative-update-12-for-sql-server-2017 +-- 14.0.3048.4 CU13 12/18/2018 https://support.microsoft.com/en-us/help/4466404/cumulative-update-13-for-sql-server-2017 + + + +-- How to determine the version, edition and update level of SQL Server and its components +-- https://bit.ly/2oAjKgW + +-- SQL Server 2017 build versions +-- https://bit.ly/2FLY88I + +-- Performance and Stability Fixes in SQL Server 2017 CU Builds +-- https://bit.ly/2GV3CNM + +-- What's New in SQL Server 2017 (Database Engine) +-- https://bit.ly/2HjSeyQ + +-- What's New in SQL Server 2017 +-- https://bit.ly/2saQ4Yh + +-- Announcing the Modern Servicing Model for SQL Server +-- https://bit.ly/2xHnh0l + +-- SQL Server Service Packs are discontinued starting from SQL Server 2017 +-- https://bit.ly/2GTkbgt + +-- Update Center for Microsoft SQL Server +-- https://bit.ly/2pZptuQ + +-- Download SQL Server Management Studio (SSMS) +-- https://bit.ly/1OcupT9 + +-- Download and install Azure Data Studio +-- https://bit.ly/2vgke1A + + + +-- Get socket, physical core and logical core count from the SQL Server Error log. (Query 2) (Core Counts) +-- This query might take a few seconds depending on the size of your error log +EXEC sys.xp_readerrorlog 0, 1, N'detected', N'socket'; +------ + +-- This can help you determine the exact core counts used by SQL Server and whether HT is enabled or not +-- It can also help you confirm your SQL Server licensing model +-- Be on the lookout for this message "using 40 logical processors based on SQL Server licensing" +-- (when you have more than 40 logical cores) which means grandfathered Server/CAL licensing +-- This query will return no results if your error log has been recycled since the instance was last started + + + +-- Get selected server properties (Query 3) (Server Properties) +SELECT SERVERPROPERTY('MachineName') AS [MachineName], +SERVERPROPERTY('ServerName') AS [ServerName], +SERVERPROPERTY('InstanceName') AS [Instance], +SERVERPROPERTY('IsClustered') AS [IsClustered], +SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS [ComputerNamePhysicalNetBIOS], +SERVERPROPERTY('Edition') AS [Edition], +SERVERPROPERTY('ProductLevel') AS [ProductLevel], -- What servicing branch (RTM/SP/CU) +SERVERPROPERTY('ProductUpdateLevel') AS [ProductUpdateLevel], -- Within a servicing branch, what CU# is applied +SERVERPROPERTY('ProductVersion') AS [ProductVersion], +SERVERPROPERTY('ProductMajorVersion') AS [ProductMajorVersion], +SERVERPROPERTY('ProductMinorVersion') AS [ProductMinorVersion], +SERVERPROPERTY('ProductBuild') AS [ProductBuild], +SERVERPROPERTY('ProductBuildType') AS [ProductBuildType], -- Is this a GDR or OD hotfix (NULL if on a CU build) +SERVERPROPERTY('ProductUpdateReference') AS [ProductUpdateReference], -- KB article number that is applicable for this build +SERVERPROPERTY('ProcessID') AS [ProcessID], +SERVERPROPERTY('Collation') AS [Collation], +SERVERPROPERTY('IsFullTextInstalled') AS [IsFullTextInstalled], +SERVERPROPERTY('IsIntegratedSecurityOnly') AS [IsIntegratedSecurityOnly], +SERVERPROPERTY('FilestreamConfiguredLevel') AS [FilestreamConfiguredLevel], +SERVERPROPERTY('IsHadrEnabled') AS [IsHadrEnabled], +SERVERPROPERTY('HadrManagerStatus') AS [HadrManagerStatus], +SERVERPROPERTY('InstanceDefaultDataPath') AS [InstanceDefaultDataPath], +SERVERPROPERTY('InstanceDefaultLogPath') AS [InstanceDefaultLogPath], +SERVERPROPERTY('BuildClrVersion') AS [Build CLR Version], +SERVERPROPERTY('IsXTPSupported') AS [IsXTPSupported], +SERVERPROPERTY('IsPolybaseInstalled') AS [IsPolybaseInstalled], -- New for SQL Server 2016 +SERVERPROPERTY('IsAdvancedAnalyticsInstalled') AS [IsRServicesInstalled]; -- New for SQL Server 2016 +------ + +-- This gives you a lot of useful information about your instance of SQL Server, +-- such as the ProcessID for SQL Server and your collation +-- Note: Some columns will be NULL on older SQL Server builds + +-- SERVERPROPERTY (Transact-SQL) +-- https://bit.ly/2eeaXeI + + + +-- Get instance-level configuration values for instance (Query 4) (Configuration Values) +SELECT name, value, value_in_use, minimum, maximum, [description], is_dynamic, is_advanced +FROM sys.configurations WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Focus on these settings: +-- automatic soft-NUMA disabled (should be 0 in most cases) +-- backup checksum default (should be 1) +-- backup compression default (should be 1 in most cases) +-- clr enabled (only enable if it is needed) +-- cost threshold for parallelism (depends on your workload) +-- lightweight pooling (should be zero) +-- max degree of parallelism (depends on your workload and hardware) +-- max server memory (MB) (set to an appropriate value, not the default) +-- optimize for ad hoc workloads (should be 1) +-- priority boost (should be zero) +-- remote admin connections (should be 1) + +-- New configuration options for SQL Server 2017 +-- clr strict security is new in SQL Server 2017, and is enabled by default + +-- sys.configurations (Transact-SQL) +-- https://bit.ly/2HsyDZI + + +-- Returns a list of all global trace flags that are enabled (Query 5) (Global Trace Flags) +DBCC TRACESTATUS (-1); +------ + +-- If no global trace flags are enabled, no results will be returned. +-- It is very useful to know what global trace flags are currently enabled as part of the diagnostic process. + +-- Common trace flags that should be enabled in most cases +-- TF 460 - Improvement: Optional replacement for "String or binary data would be truncated" message with extended information in SQL Server 2017 +-- https://bit.ly/2sboMli + +-- TF 3226 - Supresses logging of successful database backup messages to the SQL Server Error Log +-- https://bit.ly/2p6MTjS + +-- TF 6534 - Enables use of native code to improve performance with spatial data +-- https://bit.ly/2HrQUpU + +-- The behavior of TF 1117, 1118 are enabled for tempdb in SQL Server 2016 by default +-- SQL 2016 It Just Runs Faster: -T1117 and -T1118 changes for TEMPDB and user databases +-- https://bit.ly/2lbNWxK + +-- The behavior of TF 2371 is enabled by default in SQL Server 2016 and newer (in compat level 130 and higher) + +-- DBCC TRACEON - Trace Flags (Transact-SQL) +-- https://bit.ly/2FuSvPg + +-- Recommended updates and configuration options for SQL Server 2017 and 2016 with high-performance workloads +-- https://bit.ly/2VVRGTY + + +-- Returns status of instant file initialization (Query 6) (IFI Status) +EXEC sys.xp_readerrorlog 0, 1, N'Database Instant File Initialization'; +------ + +-- Lets you determine whether Instant File Initialization (IFI) is enabled for the instance +-- This should be enabled in the vast majority of cases +-- SQL Server 2016 and newer lets you enable this during the SQL server installation process + +-- Database Instant File Initialization +-- https://bit.ly/2nTX74y + +-- Misconceptions around instant file initialization +-- https://bit.ly/2oBSKgZ + + + +-- SQL Server Process Address space info (Query 7) (Process Memory) +-- (shows whether locked pages is enabled, among other things) +SELECT physical_memory_in_use_kb/1024 AS [SQL Server Memory Usage (MB)], + locked_page_allocations_kb/1024 AS [SQL Server Locked Pages Allocation (MB)], + large_page_allocations_kb/1024 AS [SQL Server Large Pages Allocation (MB)], + page_fault_count, memory_utilization_percentage, available_commit_limit_kb, + process_physical_memory_low, process_virtual_memory_low +FROM sys.dm_os_process_memory WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You want to see 0 for process_physical_memory_low +-- You want to see 0 for process_virtual_memory_low +-- This indicates that you are not under internal memory pressure +-- If locked_page_allocations_kb > 0, then LPIM is enabled + +-- How to enable the "locked pages" feature in SQL Server 2012 +-- https://bit.ly/2F5UjOA + +-- Memory Management Architecture Guide +-- https://bit.ly/2JKkadC + + + +-- SQL Server Services information (Query 8) (SQL Server Services Info) +SELECT servicename, process_id, startup_type_desc, status_desc, +last_startup_time, service_account, is_clustered, cluster_nodename, [filename], +instant_file_initialization_enabled +FROM sys.dm_server_services WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Tells you the account being used for the SQL Server Service and the SQL Agent Service +-- Shows the process_id, when they were last started, and their current status +-- Also shows whether you are running on a failover cluster instance, and what node you are running on +-- Also shows whether IFI is enabled + +-- sys.dm_server_services (Transact-SQL) +-- https://bit.ly/2oKa1Un + + +-- Last backup information by database (Query 9) (Last Backup By Database) +SELECT ISNULL(d.[name], bs.[database_name]) AS [Database], d.recovery_model_desc AS [Recovery Model], + d.log_reuse_wait_desc AS [Log Reuse Wait Desc], + MAX(CASE WHEN [type] = 'D' THEN bs.backup_finish_date ELSE NULL END) AS [Last Full Backup], + MAX(CASE WHEN [type] = 'I' THEN bs.backup_finish_date ELSE NULL END) AS [Last Differential Backup], + MAX(CASE WHEN [type] = 'L' THEN bs.backup_finish_date ELSE NULL END) AS [Last Log Backup] +FROM sys.databases AS d WITH (NOLOCK) +LEFT OUTER JOIN msdb.dbo.backupset AS bs WITH (NOLOCK) +ON bs.[database_name] = d.[name] +AND bs.backup_finish_date > GETDATE()- 30 +WHERE d.name <> N'tempdb' +GROUP BY ISNULL(d.[name], bs.[database_name]), d.recovery_model_desc, d.log_reuse_wait_desc, d.[name] +ORDER BY d.recovery_model_desc, d.[name] OPTION (RECOMPILE); +------ + +-- This helps you spot runaway transaction logs and other issues with your backup schedule + + +-- Get SQL Server Agent jobs and Category information (Query 10) (SQL Server Agent Jobs) +SELECT sj.name AS [Job Name], sj.[description] AS [Job Description], SUSER_SNAME(sj.owner_sid) AS [Job Owner], +sj.date_created AS [Date Created], sj.[enabled] AS [Job Enabled], +sj.notify_email_operator_id, sj.notify_level_email, sc.name AS [CategoryName], +s.[enabled] AS [Sched Enabled], js.next_run_date, js.next_run_time +FROM msdb.dbo.sysjobs AS sj WITH (NOLOCK) +INNER JOIN msdb.dbo.syscategories AS sc WITH (NOLOCK) +ON sj.category_id = sc.category_id +LEFT OUTER JOIN msdb.dbo.sysjobschedules AS js WITH (NOLOCK) +ON sj.job_id = js.job_id +LEFT OUTER JOIN msdb.dbo.sysschedules AS s WITH (NOLOCK) +ON js.schedule_id = s.schedule_id +ORDER BY sj.name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent jobs, who owns them and how they are configured +-- Look for Agent jobs that are not owned by sa +-- Look for jobs that have a notify_email_operator_id set to 0 (meaning no operator) +-- Look for jobs that have a notify_level_email set to 0 (meaning no e-mail is ever sent) +-- +-- MSDN sysjobs documentation +-- https://bit.ly/2paDEOP + +-- SQL Server Maintenance Solution +-- https://bit.ly/1pgchQu + + +-- Get SQL Server Agent Alert Information (Query 11) (SQL Server Agent Alerts) +SELECT name, event_source, message_id, severity, [enabled], has_notification, + delay_between_responses, occurrence_count, last_occurrence_date, last_occurrence_time +FROM msdb.dbo.sysalerts WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent Alerts +-- (which are different from SQL Server Agent jobs) +-- Read more about Agent Alerts here: https://bit.ly/2Giz0Xf + + + +-- Host information (Query 12) (Host Info) +SELECT host_platform, host_distribution, host_release, + host_service_pack_level, host_sku, os_language_version +FROM sys.dm_os_host_info WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- host_release codes (only valid for Windows) +-- 10.0 is either Windows 10 or Windows Server 2016 +-- 6.3 is either Windows 8.1 or Windows Server 2012 R2 +-- 6.2 is either Windows 8 or Windows Server 2012 + + +-- host_sku codes (only valid for Windows) +-- 4 is Enterprise Edition +-- 7 is Standard Server Edition +-- 8 is Datacenter Server Edition +-- 10 is Enterprise Server Edition +-- 48 is Professional Edition +-- 161 is Pro for Workstations + +-- 1033 for os_language_version is US-English + +-- SQL Server 2017 requires Windows Server 2012 or newer + +-- Hardware and Software Requirements for Installing SQL Server +-- https://bit.ly/2y3ka5L + +-- Using SQL Server in Windows 8 and later versions of Windows operating system +-- https://bit.ly/2F7Ax0P + + +-- SQL Server NUMA Node information (Query 13) (SQL Server NUMA Info) +SELECT node_id, node_state_desc, memory_node_id, processor_group, cpu_count, online_scheduler_count, + idle_scheduler_count, active_worker_count, avg_load_balance, resource_monitor_state +FROM sys.dm_os_nodes WITH (NOLOCK) +WHERE node_state_desc <> N'ONLINE DAC' OPTION (RECOMPILE); +------ + +-- Gives you some useful information about the composition and relative load on your NUMA nodes +-- You want to see an equal number of schedulers on each NUMA node +-- Watch out if SQL Server 2017 Standard Edition has been installed +-- on a physical or virtual machine with more than four sockets or more than 24 physical cores + +-- sys.dm_os_nodes (Transact-SQL) +-- https://bit.ly/2pn5Mw8 + +-- Balancing Your Available SQL Server Core Licenses Evenly Across NUMA Nodes +-- https://bit.ly/2vfC4Rq + + + +-- Good basic information about OS memory amounts and state (Query 14) (System Memory) +SELECT total_physical_memory_kb/1024 AS [Physical Memory (MB)], + available_physical_memory_kb/1024 AS [Available Memory (MB)], + total_page_file_kb/1024 AS [Total Page File (MB)], + available_page_file_kb/1024 AS [Available Page File (MB)], + system_cache_kb/1024 AS [System Cache (MB)], + system_memory_state_desc AS [System Memory State] +FROM sys.dm_os_sys_memory WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You want to see "Available physical memory is high" for System Memory State +-- This indicates that you are not under external memory pressure + +-- Possible System Memory State values: +-- Available physical memory is high +-- Physical memory usage is steady +-- Available physical memory is low +-- Available physical memory is running low +-- Physical memory state is transitioning + +-- sys.dm_os_sys_memory (Transact-SQL) +-- https://bit.ly/2pcV0xq + + + +-- You can skip the next two queries if you know you don't have a clustered instance + + +-- Get information about your cluster nodes and their status (Query 15) (Cluster Node Properties) +-- (if your database server is in a failover cluster) +SELECT NodeName, status_description, is_current_owner +FROM sys.dm_os_cluster_nodes WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Knowing which node owns the cluster resources is critical +-- Especially when you are installing Windows or SQL Server updates +-- You will see no results if your instance is not clustered + +-- Recommended hotfixes and updates for Windows Server 2012 R2-based failover clusters +-- https://bit.ly/1z5BfCw + + +-- Get information about any AlwaysOn AG cluster this instance is a part of (Query 16) (AlwaysOn AG Cluster) +SELECT cluster_name, quorum_type_desc, quorum_state_desc +FROM sys.dm_hadr_cluster WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You will see no results if your instance is not using AlwaysOn AGs + + +-- Good overview of AG health and status (Query 17) (AlwaysOn AG Status) +SELECT ag.name AS [AG Name], ar.replica_server_name, ar.availability_mode_desc, adc.[database_name], + drs.is_local, drs.is_primary_replica, drs.synchronization_state_desc, drs.is_commit_participant, + drs.synchronization_health_desc, drs.recovery_lsn, drs.truncation_lsn, drs.last_sent_lsn, + drs.last_sent_time, drs.last_received_lsn, drs.last_received_time, drs.last_hardened_lsn, + drs.last_hardened_time, drs.last_redone_lsn, drs.last_redone_time, drs.log_send_queue_size, + drs.log_send_rate, drs.redo_queue_size, drs.redo_rate, drs.filestream_send_rate, + drs.end_of_log_lsn, drs.last_commit_lsn, drs.last_commit_time, drs.database_state_desc +FROM sys.dm_hadr_database_replica_states AS drs WITH (NOLOCK) +INNER JOIN sys.availability_databases_cluster AS adc WITH (NOLOCK) +ON drs.group_id = adc.group_id +AND drs.group_database_id = adc.group_database_id +INNER JOIN sys.availability_groups AS ag WITH (NOLOCK) +ON ag.group_id = drs.group_id +INNER JOIN sys.availability_replicas AS ar WITH (NOLOCK) +ON drs.group_id = ar.group_id +AND drs.replica_id = ar.replica_id +ORDER BY ag.name, ar.replica_server_name, adc.[database_name] OPTION (RECOMPILE); + +-- You will see no results if your instance is not using AlwaysOn AGs + +-- SQL Server 2016 It Just Runs Faster: Always On Availability Groups Turbocharged +-- https://bit.ly/2dn1H6r + + +-- Hardware information from SQL Server 2017 (Query 18) (Hardware Info) +SELECT cpu_count AS [Logical CPU Count], scheduler_count, + (socket_count * cores_per_socket) AS [Physical Core Count], + socket_count AS [Socket Count], cores_per_socket, numa_node_count, + physical_memory_kb/1024 AS [Physical Memory (MB)], + max_workers_count AS [Max Workers Count], + affinity_type_desc AS [Affinity Type], + sqlserver_start_time AS [SQL Server Start Time], + DATEDIFF(hour, sqlserver_start_time, GETDATE()) AS [SQL Server Up Time (hrs)], + virtual_machine_type_desc AS [Virtual Machine Type], + softnuma_configuration_desc AS [Soft NUMA Configuration], + sql_memory_model_desc, process_physical_affinity -- New in SQL Server 2017 +FROM sys.dm_os_sys_info WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Gives you some good basic hardware information about your database server +-- Note: virtual_machine_type_desc of HYPERVISOR does not automatically mean you are running SQL Server inside of a VM +-- It merely indicates that you have a hypervisor running on your host + +-- sys.dm_os_sys_info (Transact-SQL) +-- https://bit.ly/2pczOYs + +-- Soft NUMA configuration was a new column for SQL Server 2016 +-- OFF = Soft-NUMA feature is OFF +-- ON = SQL Server automatically determines the NUMA node sizes for Soft-NUMA +-- MANUAL = Manually configured soft-NUMA + +-- Configure SQL Server to Use Soft-NUMA (SQL Server) +-- https://bit.ly/2HTpKJt + +-- sql_memory_model_desc values (Added in SQL Server 2016 SP1) +-- CONVENTIONAL +-- LOCK_PAGES +-- LARGE_PAGES + + +-- Get System Manufacturer and model number from SQL Server Error log (Query 19) (System Manufacturer) +EXEC sys.xp_readerrorlog 0, 1, N'Manufacturer'; +------ + +-- This can help you determine the capabilities and capacities of your database server +-- Can also be used to confirm if you are running in a VM +-- This query might take a few seconds if you have not recycled your error log recently +-- This query will return no results if your error log has been recycled since the instance was started + + +-- Get pvscsi info from Windows Registry (Query 20) (PVSCSI Driver Parameters) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'SYSTEM\CurrentControlSet\services\pvscsi\Parameters\Device', N'DriverParameter'; +------ + +-- This is valid for VMware VMs +-- Recommended value for intensive I/O patterns from VMware is: RequestRingPages=32,MaxQueueDepth=254 +-- https://kb.vmware.com/s/article/2053145 +-- Does not work on Linux + + + +-- Get BIOS date from Windows Registry (Query 21) (BIOS Date) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\BIOS', N'BiosReleaseDate'; +------ + +-- Helps you understand whether the main system BIOS is up to date, and the possible age of the hardware +-- Not as useful for virtualization +-- Does not work on Linux + + +-- Get processor description from Windows Registry (Query 22) (Processor Description) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\CentralProcessor\0', N'ProcessorNameString'; +------ + +-- Gives you the model number and rated clock speed of your processor(s) +-- Your processors may be running at less than the rated clock speed due +-- to the Windows Power Plan or hardware power management +-- Does not work on Linux + +-- You can use CPU-Z to get your actual CPU core speed and a lot of other useful information +-- https://bit.ly/QhR6xF + +-- You can learn more about processor selection for SQL Server by following this link +-- https://bit.ly/2F3aVlP + + + +-- See if buffer pool extension (BPE) is enabled (Query 23) (BPE Configuration) +SELECT [path], state_description, current_size_in_kb, +CAST(current_size_in_kb/1048576.0 AS DECIMAL(10,2)) AS [Size (GB)] +FROM sys.dm_os_buffer_pool_extension_configuration WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- BPE is available in both Standard Edition and Enterprise Edition +-- It is a more interesting feature for Standard Edition + +-- Buffer Pool Extension to SSDs in SQL Server 2014 +-- https://bit.ly/1bm08m8 + +-- Buffer Pool Extension +-- https://bit.ly/2oBuieO + + + +-- Look at buffer descriptors to see BPE usage by database (Query 24) (BPE Usage) +SELECT DB_NAME(database_id) AS [Database Name], COUNT(page_id) AS [Page Count], +CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], +AVG(read_microsec) AS [Avg Read Time (microseconds)] +FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) +WHERE database_id <> 32767 +AND is_in_bpool_extension = 1 +GROUP BY DB_NAME(database_id) +ORDER BY [Buffer size(MB)] DESC OPTION (RECOMPILE); +------ + +-- You will see no results if BPE is not enabled or if there is no BPE usage + + +-- Get information on location, time and size of any memory dumps from SQL Server (Query 25) (Memory Dump Info) +SELECT [filename], creation_time, size_in_bytes/1048576.0 AS [Size (MB)] +FROM sys.dm_server_memory_dumps WITH (NOLOCK) +ORDER BY creation_time DESC OPTION (RECOMPILE); +------ + +-- This will not return any rows if you have +-- not had any memory dumps (which is a good thing) + +-- sys.dm_server_memory_dumps (Transact-SQL) +-- https://bit.ly/2elwWll + + + +-- Look at Suspect Pages table (Query 26) (Suspect Pages) +SELECT DB_NAME(database_id) AS [Database Name], [file_id], page_id, + event_type, error_count, last_update_date +FROM msdb.dbo.suspect_pages WITH (NOLOCK) +ORDER BY database_id OPTION (RECOMPILE); +------ + +-- event_type value descriptions +-- 1 = 823 error caused by an operating system CRC error +-- or 824 error other than a bad checksum or a torn page (for example, a bad page ID) +-- 2 = Bad checksum +-- 3 = Torn page +-- 4 = Restored (The page was restored after it was marked bad) +-- 5 = Repaired (DBCC repaired the page) +-- 7 = Deallocated by DBCC + +-- Ideally, this query returns no results. The table is limited to 1000 rows. +-- If you do get results here, you should do further investigation to determine the root cause + +-- Manage the suspect_pages Table +-- https://bit.ly/2Fvr1c9 + + +-- Get number of data files in tempdb database (Query 27) (TempDB Data Files) +EXEC sys.xp_readerrorlog 0, 1, N'The tempdb database has'; +------ + +-- Get the number of data files in the tempdb database +-- 4-8 data files that are all the same size is a good starting point +-- This query will return no results if your error log has been recycled since the instance was last started + + +-- File names and paths for all user and system databases on instance (Query 28) (Database Filenames and Paths) +SELECT DB_NAME([database_id]) AS [Database Name], + [file_id], [name], physical_name, [type_desc], state_desc, + is_percent_growth, growth, + CONVERT(bigint, growth/128.0) AS [Growth in MB], + CONVERT(bigint, size/128.0) AS [Total Size in MB] +FROM sys.master_files WITH (NOLOCK) +ORDER BY DB_NAME([database_id]), [file_id] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- Are data files and log files on different drives? +-- Is everything on the C: drive? +-- Is tempdb on dedicated drives? +-- Is there only one tempdb data file? +-- Are all of the tempdb data files the same size? +-- Are there multiple data files for user databases? +-- Is percent growth enabled for any files (which is bad)? + + +-- Drive information for all fixed drives visible to the operating system (Query 29) (Fixed Drives) +SELECT fixed_drive_path, drive_type_desc, +CONVERT(DECIMAL(18,2), free_space_in_bytes/1073741824.0) AS [Available Space (GB)] +FROM sys.dm_os_enumerate_fixed_drives WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- This shows all of your fixed drives, not just LUNs with SQL Server database files + + + +-- Volume info for all LUNS that have database files on the current instance (Query 30) (Volume Info) +SELECT DISTINCT vs.volume_mount_point, vs.file_system_type, vs.logical_volume_name, +CONVERT(DECIMAL(18,2), vs.total_bytes/1073741824.0) AS [Total Size (GB)], +CONVERT(DECIMAL(18,2), vs.available_bytes/1073741824.0) AS [Available Size (GB)], +CONVERT(DECIMAL(18,2), vs.available_bytes * 1. / vs.total_bytes * 100.) AS [Space Free %], +vs.supports_compression, vs.is_compressed, +vs.supports_sparse_files, vs.supports_alternate_streams +FROM sys.master_files AS f WITH (NOLOCK) +CROSS APPLY sys.dm_os_volume_stats(f.database_id, f.[file_id]) AS vs +ORDER BY vs.volume_mount_point OPTION (RECOMPILE); +------ + +-- Shows you the total and free space on the LUNs where you have database files +-- Being low on free space can negatively affect performance + +-- sys.dm_os_volume_stats (Transact-SQL) +-- https://bit.ly/2oBPNNr + + + +-- Drive level latency information (Query 31) (Drive Level Latency) +-- Based on code from Jimmy May +SELECT tab.[Drive], tab.volume_mount_point AS [Volume Mount Point], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (io_stall_read_ms/num_of_reads) + END AS [Read Latency], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (io_stall_write_ms/num_of_writes) + END AS [Write Latency], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE (io_stall/(num_of_reads + num_of_writes)) + END AS [Overall Latency], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (num_of_bytes_read/num_of_reads) + END AS [Avg Bytes/Read], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (num_of_bytes_written/num_of_writes) + END AS [Avg Bytes/Write], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE ((num_of_bytes_read + num_of_bytes_written)/(num_of_reads + num_of_writes)) + END AS [Avg Bytes/Transfer] +FROM (SELECT LEFT(UPPER(mf.physical_name), 2) AS Drive, SUM(num_of_reads) AS num_of_reads, + SUM(io_stall_read_ms) AS io_stall_read_ms, SUM(num_of_writes) AS num_of_writes, + SUM(io_stall_write_ms) AS io_stall_write_ms, SUM(num_of_bytes_read) AS num_of_bytes_read, + SUM(num_of_bytes_written) AS num_of_bytes_written, SUM(io_stall) AS io_stall, vs.volume_mount_point + FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS vfs + INNER JOIN sys.master_files AS mf WITH (NOLOCK) + ON vfs.database_id = mf.database_id AND vfs.file_id = mf.file_id + CROSS APPLY sys.dm_os_volume_stats(mf.database_id, mf.[file_id]) AS vs + GROUP BY LEFT(UPPER(mf.physical_name), 2), vs.volume_mount_point) AS tab +ORDER BY [Overall Latency] OPTION (RECOMPILE); +------ + +-- Shows you the drive-level latency for reads and writes, in milliseconds +-- Latency above 30-40ms is usually a problem +-- These latency numbers include all file activity against all SQL Server +-- database files on each drive since SQL Server was last started + + +-- Calculates average stalls per read, per write, and per total input/output for each database file (Query 32) (IO Latency by File) +SELECT DB_NAME(fs.database_id) AS [Database Name], CAST(fs.io_stall_read_ms/(1.0 + fs.num_of_reads) AS NUMERIC(10,1)) AS [avg_read_latency_ms], +CAST(fs.io_stall_write_ms/(1.0 + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_write_latency_ms], +CAST((fs.io_stall_read_ms + fs.io_stall_write_ms)/(1.0 + fs.num_of_reads + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_io_latency_ms], +CONVERT(DECIMAL(18,2), mf.size/128.0) AS [File Size (MB)], mf.physical_name, mf.type_desc, fs.io_stall_read_ms, fs.num_of_reads, +fs.io_stall_write_ms, fs.num_of_writes, fs.io_stall_read_ms + fs.io_stall_write_ms AS [io_stalls], fs.num_of_reads + fs.num_of_writes AS [total_io], +io_stall_queued_read_ms AS [Resource Governor Total Read IO Latency (ms)], io_stall_queued_write_ms AS [Resource Governor Total Write IO Latency (ms)] +FROM sys.dm_io_virtual_file_stats(null,null) AS fs +INNER JOIN sys.master_files AS mf WITH (NOLOCK) +ON fs.database_id = mf.database_id +AND fs.[file_id] = mf.[file_id] +ORDER BY avg_io_latency_ms DESC OPTION (RECOMPILE); +------ + +-- Helps determine which database files on the entire instance have the most I/O bottlenecks +-- This can help you decide whether certain LUNs are overloaded and whether you might +-- want to move some files to a different location or perhaps improve your I/O performance +-- These latency numbers include all file activity against each SQL Server +-- database file since SQL Server was last started + + +-- Look for I/O requests taking longer than 15 seconds in the six most recent SQL Server Error Logs (Query 33) (IO Warnings) +CREATE TABLE #IOWarningResults(LogDate datetime, ProcessInfo sysname, LogText nvarchar(1000)); + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 0, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 1, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 2, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 3, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 4, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 5, 1, N'taking longer than 15 seconds'; + +SELECT LogDate, ProcessInfo, LogText +FROM #IOWarningResults +ORDER BY LogDate DESC; + +DROP TABLE #IOWarningResults; +------ + +-- Finding 15 second I/O warnings in the SQL Server Error Log is useful evidence of +-- poor I/O performance (which might have many different causes) +-- Look to see if you see any patterns in the results (same files, same drives, same time of day, etc.) + +-- Diagnostics in SQL Server help detect stalled and stuck I/O operations +-- https://bit.ly/2qtaw73 + + +-- Resource Governor Resource Pool information (Query 34) (RG Resource Pools) +SELECT pool_id, [Name], statistics_start_time, + min_memory_percent, max_memory_percent, + max_memory_kb/1024 AS [max_memory_mb], + used_memory_kb/1024 AS [used_memory_mb], + target_memory_kb/1024 AS [target_memory_mb], + min_iops_per_volume, max_iops_per_volume +FROM sys.dm_resource_governor_resource_pools WITH (NOLOCK) +OPTION (RECOMPILE); +------ + +-- sys.dm_resource_governor_resource_pools (Transact-SQL) +-- https://bit.ly/2MVU0Vy + + + +-- Recovery model, log reuse wait description, log file size, log usage size (Query 35) (Database Properties) +-- and compatibility level for all databases on instance +SELECT db.[name] AS [Database Name], SUSER_SNAME(db.owner_sid) AS [Database Owner], db.recovery_model_desc AS [Recovery Model], +db.state_desc, db.containment_desc, db.log_reuse_wait_desc AS [Log Reuse Wait Description], +CONVERT(DECIMAL(18,2), ls.cntr_value/1024.0) AS [Log Size (MB)], CONVERT(DECIMAL(18,2), lu.cntr_value/1024.0) AS [Log Used (MB)], +CAST(CAST(lu.cntr_value AS FLOAT) / CAST(ls.cntr_value AS FLOAT)AS DECIMAL(18,2)) * 100 AS [Log Used %], +db.[compatibility_level] AS [DB Compatibility Level], +db.is_mixed_page_allocation_on, db.page_verify_option_desc AS [Page Verify Option], +db.is_auto_create_stats_on, db.is_auto_update_stats_on, db.is_auto_update_stats_async_on, db.is_parameterization_forced, +db.snapshot_isolation_state_desc, db.is_read_committed_snapshot_on, db.is_auto_close_on, db.is_auto_shrink_on, +db.target_recovery_time_in_seconds, db.is_cdc_enabled, db.is_published, db.is_distributor, +db.group_database_id, db.replica_id,db.is_memory_optimized_elevate_to_snapshot_on, +db.delayed_durability_desc, db.is_auto_create_stats_incremental_on, +db.is_query_store_on, db.is_sync_with_backup, db.is_temporal_history_retention_enabled, +db.is_supplemental_logging_enabled, db.is_remote_data_archive_enabled, +db.is_encrypted, de.encryption_state, de.percent_complete, de.key_algorithm, de.key_length, db.resource_pool_id +FROM sys.databases AS db WITH (NOLOCK) +INNER JOIN sys.dm_os_performance_counters AS lu WITH (NOLOCK) +ON db.name = lu.instance_name +INNER JOIN sys.dm_os_performance_counters AS ls WITH (NOLOCK) +ON db.name = ls.instance_name +LEFT OUTER JOIN sys.dm_database_encryption_keys AS de WITH (NOLOCK) +ON db.database_id = de.database_id +WHERE lu.counter_name LIKE N'Log File(s) Used Size (KB)%' +AND ls.counter_name LIKE N'Log File(s) Size (KB)%' +AND ls.cntr_value > 0 +ORDER BY db.[name] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- How many databases are on the instance? +-- What recovery models are they using? +-- What is the log reuse wait description? +-- How full are the transaction logs? +-- What compatibility level are the databases on? +-- What is the Page Verify Option? (should be CHECKSUM) +-- Is Auto Update Statistics Asynchronously enabled? +-- Is Delayed Durability enabled +-- Make sure auto_shrink and auto_close are not enabled! + +-- is_mixed_page_allocation_on is a new property for SQL Server 2016. Equivalent to TF 1118 for a user database +-- SQL Server 2016: Changes in default behavior for autogrow and allocations for tempdb and user databases +-- https://bit.ly/2evRZSR + +-- A non-zero value for target_recovery_time_in_seconds means that indirect checkpoint is enabled +-- If the setting has a zero value it indicates that automatic checkpoint is enabled + +-- Changes in SQL Server 2016 Checkpoint Behavior +-- https://bit.ly/2pdggk3 + + +-- Missing Indexes for all databases by Index Advantage (Query 36) (Missing Indexes All Databases) +SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +FORMAT(migs.last_user_seek, 'yyyy-MM-dd HH:mm:ss') AS [last_user_seek], +mid.[statement] AS [Database.Schema.Table], +COUNT(1) OVER(PARTITION BY mid.[statement]) AS [missing_indexes_for_table], +COUNT(1) OVER(PARTITION BY mid.[statement], equality_columns) AS [similar_missing_indexes_for_table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, +CONVERT(decimal(18,2), migs.avg_total_user_cost) AS [avg_total_user_cost], migs.avg_user_impact +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Getting missing index information for all of the databases on the instance is very useful +-- Look at last user seek time, number of user seeks to help determine source and importance +-- Also look at avg_user_impact and avg_total_user_cost to help determine importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + +-- SQL Server Index Design Guide +-- https://bit.ly/2qtZr4N + + + +-- Get VLF Counts for all databases on the instance (Query 37) (VLF Counts) +SELECT [name] AS [Database Name], [VLF Count] +FROM sys.databases AS db WITH (NOLOCK) +CROSS APPLY (SELECT file_id, COUNT(*) AS [VLF Count] + FROM sys.dm_db_log_info(db.database_id) + GROUP BY file_id) AS li +ORDER BY [VLF Count] DESC OPTION (RECOMPILE); +------ + +-- High VLF counts can affect write performance to the log file +-- and they can make full database restores and crash recovery take much longer +-- Try to keep your VLF counts under 200 in most cases (depending on log file size) + +-- Important change to VLF creation algorithm in SQL Server 2014 +-- https://bit.ly/2Hsjbg4 + +-- SQL Server Transaction Log Architecture and Management Guide +-- https://bit.ly/2JjmQRZ + + + +-- Get CPU utilization by database (Query 38) (CPU Usage by Database) +WITH DB_CPU_Stats +AS +(SELECT pa.DatabaseID, DB_Name(pa.DatabaseID) AS [Database Name], SUM(qs.total_worker_time/1000) AS [CPU_Time_Ms] + FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) + CROSS APPLY (SELECT CONVERT(int, value) AS [DatabaseID] + FROM sys.dm_exec_plan_attributes(qs.plan_handle) + WHERE attribute = N'dbid') AS pa + GROUP BY DatabaseID) +SELECT ROW_NUMBER() OVER(ORDER BY [CPU_Time_Ms] DESC) AS [CPU Rank], + [Database Name], [CPU_Time_Ms] AS [CPU Time (ms)], + CAST([CPU_Time_Ms] * 1.0 / SUM([CPU_Time_Ms]) OVER() * 100.0 AS DECIMAL(5, 2)) AS [CPU Percent] +FROM DB_CPU_Stats +WHERE DatabaseID <> 32767 -- ResourceDB +ORDER BY [CPU Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most CPU resources on the instance +-- Note: This only reflects CPU usage from the currently cached query plans + + +-- Get I/O utilization by database (Query 39) (IO Usage By Database) +WITH Aggregate_IO_Statistics +AS (SELECT DB_NAME(database_id) AS [Database Name], + CAST(SUM(num_of_bytes_read + num_of_bytes_written) / 1048576 AS DECIMAL(12, 2)) AS [ioTotalMB], + CAST(SUM(num_of_bytes_read ) / 1048576 AS DECIMAL(12, 2)) AS [ioReadMB], + CAST(SUM(num_of_bytes_written) / 1048576 AS DECIMAL(12, 2)) AS [ioWriteMB] + FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS [DM_IO_STATS] + GROUP BY database_id) +SELECT ROW_NUMBER() OVER (ORDER BY ioTotalMB DESC) AS [I/O Rank], + [Database Name], ioTotalMB AS [Total I/O (MB)], + CAST(ioTotalMB / SUM(ioTotalMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Total I/O %], + ioReadMB AS [Read I/O (MB)], + CAST(ioReadMB / SUM(ioReadMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Read I/O %], + ioWriteMB AS [Write I/O (MB)], + CAST(ioWriteMB / SUM(ioWriteMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Write I/O %] +FROM Aggregate_IO_Statistics +ORDER BY [I/O Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most I/O resources on the instance +-- These numbers are cumulative since the last service restart +-- They include all I/O activity, not just the nominal I/O workload + + +-- Get total buffer usage by database for current instance (Query 40) (Total Buffer Usage by Database) +-- This make take some time to run on a busy instance +WITH AggregateBufferPoolUsage +AS +(SELECT DB_NAME(database_id) AS [Database Name], +CAST(COUNT(*) * 8/1024.0 AS DECIMAL (10,2)) AS [CachedSize] +FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) +WHERE database_id <> 32767 -- ResourceDB +GROUP BY DB_NAME(database_id)) +SELECT ROW_NUMBER() OVER(ORDER BY CachedSize DESC) AS [Buffer Pool Rank], [Database Name], CachedSize AS [Cached Size (MB)], + CAST(CachedSize / SUM(CachedSize) OVER() * 100.0 AS DECIMAL(5,2)) AS [Buffer Pool Percent] +FROM AggregateBufferPoolUsage +ORDER BY [Buffer Pool Rank] OPTION (RECOMPILE); +------ + +-- Tells you how much memory (in the buffer pool) +-- is being used by each database on the instance + + +-- Get tempdb version store space usage by database (Query 41) (Version Store Space Usage) +SELECT DB_NAME(database_id) AS [Database Name], + reserved_page_count AS [Version Store Reserved Page Count], + reserved_space_kb/1024 AS [Version Store Reserved Space (MB)] +FROM sys.dm_tran_version_store_space_usage WITH (NOLOCK) +ORDER BY reserved_space_kb/1024 DESC OPTION (RECOMPILE); +------ + +-- sys.dm_tran_version_store_space_usage (Transact-SQL) +-- https://bit.ly/2vh3Bmk + + + + +-- Clear Wait Stats with this command +-- DBCC SQLPERF('sys.dm_os_wait_stats', CLEAR); + +-- Isolate top waits for server instance since last restart or wait statistics clear (Query 42) (Top Waits) +WITH [Waits] +AS (SELECT wait_type, wait_time_ms/ 1000.0 AS [WaitS], + (wait_time_ms - signal_wait_time_ms) / 1000.0 AS [ResourceS], + signal_wait_time_ms / 1000.0 AS [SignalS], + waiting_tasks_count AS [WaitCount], + 100.0 * wait_time_ms / SUM (wait_time_ms) OVER() AS [Percentage], + ROW_NUMBER() OVER(ORDER BY wait_time_ms DESC) AS [RowNum] + FROM sys.dm_os_wait_stats WITH (NOLOCK) + WHERE [wait_type] NOT IN ( + N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', + N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', + N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', N'CXCONSUMER', + N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', + N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', + N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', + N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', + N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', + N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', + N'MEMORY_ALLOCATION_EXT', N'ONDEMAND_TASK_QUEUE', + N'PARALLEL_REDO_DRAIN_WORKER', N'PARALLEL_REDO_LOG_CACHE', N'PARALLEL_REDO_TRAN_LIST', + N'PARALLEL_REDO_WORKER_SYNC', N'PARALLEL_REDO_WORKER_WAIT_WORK', + N'PREEMPTIVE_HADR_LEASE_MECHANISM', N'PREEMPTIVE_SP_SERVER_DIAGNOSTICS', + N'PREEMPTIVE_OS_LIBRARYOPS', N'PREEMPTIVE_OS_COMOPS', N'PREEMPTIVE_OS_CRYPTOPS', + N'PREEMPTIVE_OS_PIPEOPS', N'PREEMPTIVE_OS_AUTHENTICATIONOPS', + N'PREEMPTIVE_OS_GENERICOPS', N'PREEMPTIVE_OS_VERIFYTRUST', + N'PREEMPTIVE_OS_FILEOPS', N'PREEMPTIVE_OS_DEVICEOPS', N'PREEMPTIVE_OS_QUERYREGISTRY', + N'PREEMPTIVE_OS_WRITEFILE', + N'PREEMPTIVE_XE_CALLBACKEXECUTE', N'PREEMPTIVE_XE_DISPATCHER', + N'PREEMPTIVE_XE_GETTARGETSTATE', N'PREEMPTIVE_XE_SESSIONCOMMIT', + N'PREEMPTIVE_XE_TARGETINIT', N'PREEMPTIVE_XE_TARGETFINALIZE', + N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'PWAIT_DIRECTLOGCONSUMER_GETNEXT', + N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', + N'QDS_ASYNC_QUEUE', + N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', + N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', + N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', + N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', + N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SP_SERVER_DIAGNOSTICS_SLEEP', + N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', + N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', + N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'WAIT_XTP_RECOVERY', + N'XE_BUFFERMGR_ALLPROCESSED_EVENT', N'XE_DISPATCHER_JOIN', + N'XE_DISPATCHER_WAIT', N'XE_LIVE_TARGET_TVF', N'XE_TIMER_EVENT') + AND waiting_tasks_count > 0) +SELECT + MAX (W1.wait_type) AS [WaitType], + CAST (MAX (W1.Percentage) AS DECIMAL (5,2)) AS [Wait Percentage], + CAST ((MAX (W1.WaitS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgWait_Sec], + CAST ((MAX (W1.ResourceS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgRes_Sec], + CAST ((MAX (W1.SignalS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgSig_Sec], + CAST (MAX (W1.WaitS) AS DECIMAL (16,2)) AS [Wait_Sec], + CAST (MAX (W1.ResourceS) AS DECIMAL (16,2)) AS [Resource_Sec], + CAST (MAX (W1.SignalS) AS DECIMAL (16,2)) AS [Signal_Sec], + MAX (W1.WaitCount) AS [Wait Count], + CAST (N'https://www.sqlskills.com/help/waits/' + W1.wait_type AS XML) AS [Help/Info URL] +FROM Waits AS W1 +INNER JOIN Waits AS W2 +ON W2.RowNum <= W1.RowNum +GROUP BY W1.RowNum, W1.wait_type +HAVING SUM (W2.Percentage) - MAX (W1.Percentage) < 99 -- percentage threshold +OPTION (RECOMPILE); +------ + +-- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure + +-- SQL Server Wait Types Library (Paul Randal) +-- https://bit.ly/2ePzYO2 + +-- The SQL Server Wait Type Repository +-- https://bit.ly/1afzfjC + +-- Wait statistics, or please tell me where it hurts +-- https://bit.ly/2wsQHQE + +-- SQL Server 2005 Performance Tuning using the Waits and Queues +-- https://bit.ly/1o2NFoF + +-- sys.dm_os_wait_stats (Transact-SQL) +-- https://bit.ly/2Hjq9Yl + + + +-- Get a count of SQL connections by IP address (Query 43) (Connection Counts by IP Address) +SELECT ec.client_net_address, es.[program_name], es.[host_name], es.login_name, +COUNT(ec.session_id) AS [connection count] +FROM sys.dm_exec_sessions AS es WITH (NOLOCK) +INNER JOIN sys.dm_exec_connections AS ec WITH (NOLOCK) +ON es.session_id = ec.session_id +GROUP BY ec.client_net_address, es.[program_name], es.[host_name], es.login_name +ORDER BY ec.client_net_address, es.[program_name] OPTION (RECOMPILE); +------ + +-- This helps you figure where your database load is coming from +-- and verifies connectivity from other machines + +-- Solving Connectivity errors to SQL Server +-- https://bit.ly/2EgzoD0 + + + +-- Get Average Task Counts (run multiple times) (Query 44) (Avg Task Counts) +SELECT AVG(current_tasks_count) AS [Avg Task Count], +AVG(work_queue_count) AS [Avg Work Queue Count], +AVG(runnable_tasks_count) AS [Avg Runnable Task Count], +AVG(pending_disk_io_count) AS [Avg Pending DiskIO Count] +FROM sys.dm_os_schedulers WITH (NOLOCK) +WHERE scheduler_id < 255 OPTION (RECOMPILE); +------ + +-- Sustained values above 10 suggest further investigation in that area +-- High Avg Task Counts are often caused by blocking/deadlocking or other resource contention + +-- Sustained values above 1 suggest further investigation in that area +-- High Avg Runnable Task Counts are a good sign of CPU pressure +-- High Avg Pending DiskIO Counts are a sign of disk pressure + +-- How to Do Some Very Basic SQL Server Monitoring +-- https://bit.ly/2q3Btgt + + + +-- Detect blocking (run multiple times) (Query 45) (Detect Blocking) +SELECT t1.resource_type AS [lock type], DB_NAME(resource_database_id) AS [database], +t1.resource_associated_entity_id AS [blk object],t1.request_mode AS [lock req], -- lock requested +t1.request_session_id AS [waiter sid], t2.wait_duration_ms AS [wait time], -- spid of waiter +(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK) -- get sql for waiter +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) +WHERE r.session_id = t1.request_session_id) AS [waiter_batch], +(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, + (CASE WHEN r.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE r.statement_end_offset END - r.statement_start_offset)/2) +FROM sys.dm_exec_requests AS r WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt +WHERE r.session_id = t1.request_session_id) AS [waiter_stmt], -- statement blocked +t2.blocking_session_id AS [blocker sid], -- spid of blocker +(SELECT [text] FROM sys.sysprocesses AS p -- get sql for blocker +CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) +WHERE p.spid = t2.blocking_session_id) AS [blocker_batch] +FROM sys.dm_tran_locks AS t1 WITH (NOLOCK) +INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK) +ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE); +------ + +-- Helps troubleshoot blocking and deadlocking issues +-- The results will change from second to second on a busy system +-- You should run this query multiple times when you see signs of blocking + + + +-- Get CPU Utilization History for last 256 minutes (in one minute intervals) (Query 46) (CPU Utilization History) +DECLARE @ts_now bigint = (SELECT cpu_ticks/(cpu_ticks/ms_ticks) FROM sys.dm_os_sys_info WITH (NOLOCK)); + +SELECT TOP(256) SQLProcessUtilization AS [SQL Server Process CPU Utilization], + SystemIdle AS [System Idle Process], + 100 - SystemIdle - SQLProcessUtilization AS [Other Process CPU Utilization], + DATEADD(ms, -1 * (@ts_now - [timestamp]), GETDATE()) AS [Event Time] +FROM (SELECT record.value('(./Record/@id)[1]', 'int') AS record_id, + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') + AS [SystemIdle], + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', 'int') + AS [SQLProcessUtilization], [timestamp] + FROM (SELECT [timestamp], CONVERT(xml, record) AS [record] + FROM sys.dm_os_ring_buffers WITH (NOLOCK) + WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' + AND record LIKE N'%%') AS x) AS y +ORDER BY record_id DESC OPTION (RECOMPILE); +------ + +-- Look at the trend over the entire period +-- Also look at high sustained 'Other Process' CPU Utilization values +-- Note: This query sometimes gives inaccurate results (negative values) +-- on high core count (> 64 cores) systems + + +-- Get top total worker time queries for entire instance (Query 47) (Top Worker Time Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_worker_time AS [Total Worker Time], qs.min_worker_time AS [Min Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.max_worker_time AS [Max Worker Time], +qs.min_elapsed_time AS [Min Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.max_elapsed_time AS [Max Elapsed Time], +qs.min_logical_reads AS [Min Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.max_logical_reads AS [Max Logical Reads], +qs.execution_count AS [Execution Count], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + + +-- Helps you find the most expensive queries from a CPU perspective across the entire instance +-- Can also help track down parameter sniffing issues + + + +-- Page Life Expectancy (PLE) value for each NUMA node in current instance (Query 48) (PLE by NUMA Node) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], instance_name, cntr_value AS [Page Life Expectancy] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Buffer Node%' -- Handles named instances +AND counter_name = N'Page life expectancy' OPTION (RECOMPILE); +------ + +-- PLE is a good measurement of internal memory pressure +-- Higher PLE is better. Watch the trend over time, not the absolute value +-- This will only return one row for non-NUMA systems + +-- Page Life Expectancy isnt what you think +-- https://bit.ly/2EgynLa + + +-- Memory Grants Pending value for current instance (Query 49) (Memory Grants Pending) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], cntr_value AS [Memory Grants Pending] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Memory Manager%' -- Handles named instances +AND counter_name = N'Memory Grants Pending' OPTION (RECOMPILE); +------ + +-- Run multiple times, and run periodically if you suspect you are under memory pressure +-- Memory Grants Pending above zero for a sustained period is a very strong indicator of internal memory pressure + + +-- Memory Clerk Usage for instance (Query 50) (Memory Clerk Usage) +-- Look for high value for CACHESTORE_SQLCP (Ad-hoc query plans) +SELECT TOP(10) mc.[type] AS [Memory Clerk Type], + CAST((SUM(mc.pages_kb)/1024.0) AS DECIMAL (15,2)) AS [Memory Usage (MB)] +FROM sys.dm_os_memory_clerks AS mc WITH (NOLOCK) +GROUP BY mc.[type] +ORDER BY SUM(mc.pages_kb) DESC OPTION (RECOMPILE); +------ + +-- MEMORYCLERK_SQLBUFFERPOOL was new for SQL Server 2012. It should be your highest consumer of memory + +-- CACHESTORE_SQLCP SQL Plans +-- These are cached SQL statements or batches that aren't in stored procedures, functions and triggers +-- Watch out for high values for CACHESTORE_SQLCP +-- Enabling 'optimize for ad hoc workloads' at the instance level can help reduce this +-- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this + +-- CACHESTORE_OBJCP Object Plans +-- These are compiled plans for stored procedures, functions and triggers + +-- sys.dm_os_memory_clerks (Transact-SQL) +-- https://bit.ly/2H31xDR + + + +-- Find single-use, ad-hoc and prepared queries that are bloating the plan cache (Query 51) (Ad hoc Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], t.[text] AS [Query Text], +cp.objtype AS [Object Type], cp.cacheobjtype AS [Cache Object Type], +cp.size_in_bytes/1024 AS [Plan Size in KB] +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +WHERE cp.cacheobjtype = N'Compiled Plan' +AND cp.objtype IN (N'Adhoc', N'Prepared') +AND cp.usecounts = 1 +ORDER BY cp.size_in_bytes DESC, DB_NAME(t.[dbid]) OPTION (RECOMPILE); +------ + +-- Gives you the text, type and size of single-use ad-hoc and prepared queries that waste space in the plan cache +-- Enabling 'optimize for ad hoc workloads' for the instance can help (SQL Server 2008 and above only) +-- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this +-- Enabling forced parameterization for the database can help, but test first! + +-- Plan cache, adhoc workloads and clearing the single-use plan cache bloat +-- https://bit.ly/2EfYOkl + + +-- Get top total logical reads queries for entire instance (Query 52) (Top Logical Reads Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_logical_reads AS [Total Logical Reads], +qs.min_logical_reads AS [Min Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.max_logical_reads AS [Max Logical Reads], +qs.min_worker_time AS [Min Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.max_worker_time AS [Max Worker Time], +qs.min_elapsed_time AS [Min Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.max_elapsed_time AS [Max Elapsed Time], +qs.execution_count AS [Execution Count], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + + +-- Helps you find the most expensive queries from a memory perspective across the entire instance +-- Can also help track down parameter sniffing issues + + +-- Get top average elapsed time queries for entire instance (Query 53) (Top Avg Elapsed Time Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.min_elapsed_time, qs.max_elapsed_time, qs.last_elapsed_time, +qs.execution_count AS [Execution Count], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.total_physical_reads/qs.execution_count AS [Avg Physical Reads], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_elapsed_time/qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Helps you find the highest average elapsed time queries across the entire instance +-- Can also help track down parameter sniffing issues + + +-- Look at UDF execution statistics (Query 54) (UDF Stats by DB) +SELECT TOP (25) DB_NAME(database_id) AS [Database Name], + OBJECT_NAME(object_id, database_id) AS [Function Name], + total_worker_time, execution_count, total_elapsed_time, + total_elapsed_time/execution_count AS [avg_elapsed_time], + last_elapsed_time, last_execution_time, cached_time, [type_desc] +FROM sys.dm_exec_function_stats WITH (NOLOCK) +ORDER BY total_worker_time DESC OPTION (RECOMPILE); +------ + +-- sys.dm_exec_function_stats (Transact-SQL) +-- https://bit.ly/2q1Q6BM + +-- Showplan Enhancements for UDFs +-- https://bit.ly/2LVqiQ1 + + +-- Database specific queries ***************************************************************** + +-- **** Please switch to a user database that you are interested in! ***** +--USE YourDatabaseName; -- make sure to change to an actual database on your instance, not the master system database +--GO + +-- Individual File Sizes and space available for current database (Query 55) (File Sizes and Space) +SELECT f.name AS [File Name] , f.physical_name AS [Physical Name], +CAST((f.size/128.0) AS DECIMAL(15,2)) AS [Total Size in MB], +CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) +AS [Available Space In MB], f.[file_id], fg.name AS [Filegroup Name], +f.is_percent_growth, f.growth, fg.is_default, fg.is_read_only, +fg.is_autogrow_all_files +FROM sys.database_files AS f WITH (NOLOCK) +LEFT OUTER JOIN sys.filegroups AS fg WITH (NOLOCK) +ON f.data_space_id = fg.data_space_id +ORDER BY f.[file_id] OPTION (RECOMPILE); +------ + +-- Look at how large and how full the files are and where they are located +-- Make sure the transaction log is not full!! + +-- is_autogrow_all_files was new for SQL Server 2016. Equivalent to TF 1117 for user databases + +-- SQL Server 2016: Changes in default behavior for autogrow and allocations for tempdb and user databases +-- https://bit.ly/2evRZSR + + +-- Log space usage for current database (Query 56) (Log Space Usage) +SELECT DB_NAME(lsu.database_id) AS [Database Name], db.recovery_model_desc AS [Recovery Model], + CAST(lsu.total_log_size_in_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Total Log Space (MB)], + CAST(lsu.used_log_space_in_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Used Log Space (MB)], + CAST(lsu.used_log_space_in_percent AS DECIMAL(10, 2)) AS [Used Log Space %], + CAST(lsu.log_space_in_bytes_since_last_backup/1048576.0 AS DECIMAL(10, 2)) AS [Used Log Space Since Last Backup (MB)], + db.log_reuse_wait_desc +FROM sys.dm_db_log_space_usage AS lsu WITH (NOLOCK) +INNER JOIN sys.databases AS db WITH (NOLOCK) +ON lsu.database_id = db.database_id +OPTION (RECOMPILE); +------ + +-- Look at log file size and usage, along with the log reuse wait description for the current database + +-- sys.dm_db_log_space_usage (Transact-SQL) +-- https://bit.ly/2H4MQw9 + + +-- Status of last VLF for current database (Query 57) (Last VLF Status) +SELECT TOP(1) DB_NAME(li.database_id) AS [Database Name], li.[file_id], + li.vlf_size_mb, li.vlf_sequence_number, li.vlf_active, li.vlf_status +FROM sys.dm_db_log_info(DB_ID()) AS li +ORDER BY vlf_sequence_number DESC OPTION (RECOMPILE); +------ + +-- Determine whether you will be able to shrink the transaction log file + +-- vlf_status Values +-- 0 is inactive +-- 1 is initialized but unused +-- 2 is active + +-- sys.dm_db_log_info (Transact-SQL) +-- https://bit.ly/2EQUU1v + + + +-- Get database scoped configuration values for current database (Query 58) (Database-scoped Configurations) +SELECT configuration_id, name, [value] AS [value_for_primary], value_for_secondary +FROM sys.database_scoped_configurations WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- This lets you see the value of these new properties for the current database + +-- Clear plan cache for current database +-- ALTER DATABASE SCOPED CONFIGURATION CLEAR PROCEDURE_CACHE; + +-- ALTER DATABASE SCOPED CONFIGURATION (Transact-SQL) +-- https://bit.ly/2sOH7nb + + +-- I/O Statistics by file for the current database (Query 59) (IO Stats By File) +SELECT DB_NAME(DB_ID()) AS [Database Name], df.name AS [Logical Name], vfs.[file_id], df.type_desc, +df.physical_name AS [Physical Name], CAST(vfs.size_on_disk_bytes/1048576.0 AS DECIMAL(16, 2)) AS [Size on Disk (MB)], +vfs.num_of_reads, vfs.num_of_writes, vfs.io_stall_read_ms, vfs.io_stall_write_ms, +CAST(100. * vfs.io_stall_read_ms/(vfs.io_stall_read_ms + vfs.io_stall_write_ms) AS DECIMAL(16,1)) AS [IO Stall Reads Pct], +CAST(100. * vfs.io_stall_write_ms/(vfs.io_stall_write_ms + vfs.io_stall_read_ms) AS DECIMAL(16,1)) AS [IO Stall Writes Pct], +(vfs.num_of_reads + vfs.num_of_writes) AS [Writes + Reads], +CAST(vfs.num_of_bytes_read/1048576.0 AS DECIMAL(16, 2)) AS [MB Read], +CAST(vfs.num_of_bytes_written/1048576.0 AS DECIMAL(16, 2)) AS [MB Written], +CAST(100. * vfs.num_of_reads/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(16,1)) AS [# Reads Pct], +CAST(100. * vfs.num_of_writes/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(16,1)) AS [# Write Pct], +CAST(100. * vfs.num_of_bytes_read/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(16,1)) AS [Read Bytes Pct], +CAST(100. * vfs.num_of_bytes_written/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(16,1)) AS [Written Bytes Pct] +FROM sys.dm_io_virtual_file_stats(DB_ID(), NULL) AS vfs +INNER JOIN sys.database_files AS df WITH (NOLOCK) +ON vfs.[file_id]= df.[file_id] OPTION (RECOMPILE); +------ + +-- This helps you characterize your workload better from an I/O perspective for this database +-- It helps you determine whether you has an OLTP or DW/DSS type of workload + + + +-- Get most frequently executed queries for this database (Query 60) (Query Execution Counts) +SELECT TOP(50) LEFT(t.[text], 50) AS [Short Query Text], qs.execution_count AS [Execution Count], +qs.total_logical_reads AS [Total Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.total_worker_time AS [Total Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.total_elapsed_time AS [Total Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +WHERE t.dbid = DB_ID() +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + + +-- Queries 61 through 66 are the "Bad Man List" for stored procedures + +-- Top Cached SPs By Execution Count (Query 61) (SP Execution Counts) +SELECT TOP(100) p.name AS [SP Name], qs.execution_count AS [Execution Count], +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Tells you which cached stored procedures are called the most often +-- This helps you characterize and baseline your workload + + +-- Top Cached SPs By Avg Elapsed Time (Query 62) (SP Avg Elapsed Time) +SELECT TOP(25) p.name AS [SP Name], qs.min_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +qs.max_elapsed_time, qs.last_elapsed_time, qs.total_elapsed_time, qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], +qs.total_worker_time AS [TotalWorkerTime], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find high average elapsed time cached stored procedures that +-- may be easy to optimize with standard query tuning techniques + + + +-- Top Cached SPs By Total Worker time. Worker time relates to CPU cost (Query 63) (SP Worker Time) +SELECT TOP(25) p.name AS [SP Name], qs.total_worker_time AS [TotalWorkerTime], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a CPU perspective +-- You should look at this if you see signs of CPU pressure + + +-- Top Cached SPs By Total Logical Reads. Logical reads relate to memory pressure (Query 64) (SP Logical Reads) +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_reads AS [TotalLogicalReads], +qs.total_logical_reads/qs.execution_count AS [AvgLogicalReads],qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a memory perspective +-- You should look at this if you see signs of memory pressure + + +-- Top Cached SPs By Total Physical Reads. Physical reads relate to disk read I/O pressure (Query 65) (SP Physical Reads) +SELECT TOP(25) p.name AS [SP Name],qs.total_physical_reads AS [TotalPhysicalReads], +qs.total_physical_reads/qs.execution_count AS [AvgPhysicalReads], qs.execution_count, +qs.total_logical_reads,qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND qs.total_physical_reads > 0 +ORDER BY qs.total_physical_reads DESC, qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a read I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + + +-- Top Cached SPs By Total Logical Writes (Query 66) (SP Logical Writes) +-- Logical writes relate to both memory and disk I/O pressure +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_writes AS [TotalLogicalWrites], +qs.total_logical_writes/qs.execution_count AS [AvgLogicalWrites], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND qs.total_logical_writes > 0 +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_logical_writes DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a write I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + +-- Lists the top statements by average input/output usage for the current database (Query 67) (Top IO Statements) +SELECT TOP(50) OBJECT_NAME(qt.objectid, dbid) AS [SP Name], +(qs.total_logical_reads + qs.total_logical_writes) /qs.execution_count AS [Avg IO], qs.execution_count AS [Execution Count], +SUBSTRING(qt.[text],qs.statement_start_offset/2, + (CASE + WHEN qs.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE qs.statement_end_offset + END - qs.statement_start_offset)/2) AS [Query Text] +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt +WHERE qt.[dbid] = DB_ID() +ORDER BY [Avg IO] DESC OPTION (RECOMPILE); +------ + +-- Helps you find the most expensive statements for I/O by SP + + + +-- Possible Bad NC Indexes (writes > reads) (Query 68) (Bad NC Indexes) +SELECT OBJECT_NAME(s.[object_id]) AS [Table Name], i.name AS [Index Name], i.index_id, +i.is_disabled, i.is_hypothetical, i.has_filter, i.fill_factor, +s.user_updates AS [Total Writes], s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], +s.user_updates - (s.user_seeks + s.user_scans + s.user_lookups) AS [Difference] +FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON s.[object_id] = i.[object_id] +AND i.index_id = s.index_id +WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 +AND s.database_id = DB_ID() +AND s.user_updates > (s.user_seeks + s.user_scans + s.user_lookups) +AND i.index_id > 1 AND i.[type_desc] = N'NONCLUSTERED' +AND i.is_primary_key = 0 AND i.is_unique_constraint = 0 AND i.is_unique = 0 +ORDER BY [Difference] DESC, [Total Writes] DESC, [Total Reads] ASC OPTION (RECOMPILE); +------ + +-- Look for indexes with high numbers of writes and zero or very low numbers of reads +-- Consider your complete workload, and how long your instance has been running +-- Investigate further before dropping an index! + + +-- Missing Indexes for current database by Index Advantage (Query 69) (Missing Indexes) +SELECT DISTINCT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact, +OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows] +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON p.[object_id] = mid.[object_id] +WHERE mid.database_id = DB_ID() +AND p.index_id < 2 +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Look at index advantage, last user seek time, number of user seeks to help determine source and importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + + +-- Find missing index warnings for cached plans in the current database (Query 70) (Missing Index Warnings) +-- Note: This query could take some time on a busy instance +SELECT TOP(25) OBJECT_NAME(objectid) AS [ObjectName], + cp.objtype, cp.usecounts, cp.size_in_bytes, query_plan +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp +WHERE CAST(query_plan AS NVARCHAR(MAX)) LIKE N'%MissingIndex%' +AND dbid = DB_ID() +ORDER BY cp.usecounts DESC OPTION (RECOMPILE); +------ + +-- Helps you connect missing indexes to specific stored procedures or queries +-- This can help you decide whether to add them or not + + +-- Breaks down buffers used by current database by object (table, index) in the buffer cache (Query 71) (Buffer Usage) +-- Note: This query could take some time on a busy instance +SELECT OBJECT_NAME(p.[object_id]) AS [Object Name], p.index_id, +CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], +COUNT(*) AS [BufferCount], p.[Rows] AS [Row Count], +p.data_compression_desc AS [Compression Type] +FROM sys.allocation_units AS a WITH (NOLOCK) +INNER JOIN sys.dm_os_buffer_descriptors AS b WITH (NOLOCK) +ON a.allocation_unit_id = b.allocation_unit_id +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON a.container_id = p.hobt_id +WHERE b.database_id = CONVERT(int, DB_ID()) +AND p.[object_id] > 100 +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'plan_%' +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'sys%' +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'xml_index_nodes%' +GROUP BY p.[object_id], p.index_id, p.data_compression_desc, p.[Rows] +ORDER BY [BufferCount] DESC OPTION (RECOMPILE); +------ + +-- Tells you what tables and indexes are using the most memory in the buffer cache +-- It can help identify possible candidates for data compression + + +-- Get Table names, row counts, and compression status for clustered index or heap (Query 72) (Table Sizes) +SELECT SCHEMA_NAME(o.Schema_ID) AS [Schema Name], OBJECT_NAME(p.object_id) AS [ObjectName], +SUM(p.Rows) AS [RowCount], data_compression_desc AS [CompressionType] +FROM sys.partitions AS p WITH (NOLOCK) +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON p.object_id = o.object_id +WHERE index_id < 2 --ignore the partitions from the non-clustered index if any +AND OBJECT_NAME(p.object_id) NOT LIKE N'sys%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'spt_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'queue_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filestream_tombstone%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'fulltext%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'ifts_comp_fragment%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filetable_updates%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'xml_index_nodes%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'sqlagent_job%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'plan_persist%' +GROUP BY SCHEMA_NAME(o.Schema_ID), p.object_id, data_compression_desc +ORDER BY SUM(p.Rows) DESC OPTION (RECOMPILE); +------ + +-- Gives you an idea of table sizes, and possible data compression opportunities + + + +-- Get some key table properties (Query 73) (Table Properties) +SELECT OBJECT_NAME(t.[object_id]) AS [ObjectName], p.[rows] AS [Table Rows], p.index_id, + p.data_compression_desc AS [Index Data Compression], + t.create_date, t.lock_on_bulk_load, t.is_replicated, t.has_replication_filter, + t.is_tracked_by_cdc, t.lock_escalation_desc, t.is_filetable, + t.is_memory_optimized, t.durability_desc, + t.temporal_type_desc, t.is_remote_data_archive_enabled, t.is_external -- new for SQL Server 2016 +FROM sys.tables AS t WITH (NOLOCK) +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON t.[object_id] = p.[object_id] +WHERE OBJECT_NAME(t.[object_id]) NOT LIKE N'sys%' +ORDER BY OBJECT_NAME(t.[object_id]), p.index_id OPTION (RECOMPILE); +------ + +-- Gives you some good information about your tables +-- is_memory_optimized and durability_desc were new in SQL Server 2014 +-- temporal_type_desc, is_remote_data_archive_enabled, is_external were new in SQL Server 2016 + +-- sys.tables (Transact-SQL) +-- https://bit.ly/2Gk7998 + + + +-- When were Statistics last updated on all indexes? (Query 74) (Statistics Update) +SELECT SCHEMA_NAME(o.Schema_ID) + N'.' + o.[NAME] AS [Object Name], o.[type_desc] AS [Object Type], + i.[name] AS [Index Name], STATS_DATE(i.[object_id], i.index_id) AS [Statistics Date], + s.auto_created, s.no_recompute, s.user_created, s.is_incremental, s.is_temporary, + st.row_count, st.used_page_count +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON o.[object_id] = i.[object_id] +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.stats_id +INNER JOIN sys.dm_db_partition_stats AS st WITH (NOLOCK) +ON o.[object_id] = st.[object_id] +AND i.[index_id] = st.[index_id] +WHERE o.[type] IN ('U', 'V') +AND st.row_count > 0 +ORDER BY STATS_DATE(i.[object_id], i.index_id) DESC OPTION (RECOMPILE); +------ + +-- Helps discover possible problems with out-of-date statistics +-- Also gives you an idea which indexes are the most active + +-- sys.stats (Transact-SQL) +-- https://bit.ly/2GyAxrn + +-- UPDATEs to Statistics (Erin Stellato) +-- https://bit.ly/2vhrYQy + + + + +-- Look at most frequently modified indexes and statistics (Query 75) (Volatile Indexes) +SELECT o.[name] AS [Object Name], o.[object_id], o.[type_desc], s.[name] AS [Statistics Name], + s.stats_id, s.no_recompute, s.auto_created, s.is_incremental, s.is_temporary, + sp.modification_counter, sp.[rows], sp.rows_sampled, sp.last_updated +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON s.object_id = o.object_id +CROSS APPLY sys.dm_db_stats_properties(s.object_id, s.stats_id) AS sp +WHERE o.[type_desc] NOT IN (N'SYSTEM_TABLE', N'INTERNAL_TABLE') +AND sp.modification_counter > 0 +ORDER BY sp.modification_counter DESC, o.name OPTION (RECOMPILE); +------ + +-- This helps you understand your workload and make better decisions about +-- things like data compression and adding new indexes to a table + + + +-- Get fragmentation info for all indexes above a certain size in the current database (Query 76) (Index Fragmentation) +-- Note: This query could take some time on a very large database +SELECT DB_NAME(ps.database_id) AS [Database Name], SCHEMA_NAME(o.[schema_id]) AS [Schema Name], +OBJECT_NAME(ps.OBJECT_ID) AS [Object Name], i.[name] AS [Index Name], ps.index_id, +ps.index_type_desc, ps.avg_fragmentation_in_percent, +ps.fragment_count, ps.page_count, i.fill_factor, i.has_filter, +i.filter_definition, i.[allow_page_locks] +FROM sys.dm_db_index_physical_stats(DB_ID(),NULL, NULL, NULL , N'LIMITED') AS ps +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ps.[object_id] = i.[object_id] +AND ps.index_id = i.index_id +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON i.[object_id] = o.[object_id] +WHERE ps.database_id = DB_ID() +AND ps.page_count > 2500 +ORDER BY ps.avg_fragmentation_in_percent DESC OPTION (RECOMPILE); +------ + +-- Helps determine whether you have framentation in your relational indexes +-- and how effective your index maintenance strategy is + + +--- Index Read/Write stats (all tables in current DB) ordered by Reads (Query 77) (Overall Index Usage - Reads) +SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.[name] AS [IndexName], i.index_id, + s.user_seeks, s.user_scans, s.user_lookups, + s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], + s.user_updates AS [Writes], + i.[type_desc] AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, + s.last_user_scan, s.last_user_lookup, s.last_user_seek +FROM sys.indexes AS i WITH (NOLOCK) +LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 +ORDER BY s.user_seeks + s.user_scans + s.user_lookups DESC OPTION (RECOMPILE); -- Order by reads +------ + +-- Show which indexes in the current database are most active for Reads + + +--- Index Read/Write stats (all tables in current DB) ordered by Writes (Query 78) (Overall Index Usage - Writes) +SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.[name] AS [IndexName], i.index_id, + s.user_updates AS [Writes], s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], + i.[type_desc] AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, + s.last_system_update, s.last_user_update +FROM sys.indexes AS i WITH (NOLOCK) +LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 +ORDER BY s.user_updates DESC OPTION (RECOMPILE); -- Order by writes +------ + +-- Show which indexes in the current database are most active for Writes + + +-- Get in-memory OLTP index usage (Query 79) (XTP Index Usage) +SELECT OBJECT_NAME(i.[object_id]) AS [Object Name], i.index_id, i.[name] AS [Index Name], + i.[type_desc], xis.scans_started, xis.scans_retries, + xis.rows_touched, xis.rows_returned +FROM sys.dm_db_xtp_index_stats AS xis WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON i.[object_id] = xis.[object_id] +AND i.index_id = xis.index_id +ORDER BY OBJECT_NAME(i.[object_id]) OPTION (RECOMPILE); +------ + +-- This gives you some index usage statistics for in-memory OLTP +-- Returns no data if you are not using in-memory OLTP + +-- Guidelines for Using Indexes on Memory-Optimized Tables +-- https://bit.ly/2GCP8lF + + + +-- Look at Columnstore index physical statistics (Query 80) (Columnstore Index Physical Stat) +SELECT OBJECT_NAME(ps.object_id) AS [TableName], + i.[name] AS [IndexName], ps.index_id, ps.partition_number, + ps.delta_store_hobt_id, ps.state_desc, ps.total_rows, ps.size_in_bytes, + ps.trim_reason_desc, ps.generation, ps.transition_to_compressed_state_desc, + ps.has_vertipaq_optimization, ps.deleted_rows, + 100 * (ISNULL(ps.deleted_rows, 0))/ps.total_rows AS [Fragmentation] +FROM sys.dm_db_column_store_row_group_physical_stats AS ps WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ps.object_id = i.object_id +AND ps.index_id = i.index_id +ORDER BY ps.object_id, ps.partition_number, ps.row_group_id OPTION (RECOMPILE); +------ + +-- sys.dm_db_column_store_row_group_physical_stats (Transact-SQL) +-- https://bit.ly/2q276XQ + + + +-- Get lock waits for current database (Query 81) (Lock Waits) +SELECT o.name AS [table_name], i.name AS [index_name], ios.index_id, ios.partition_number, + SUM(ios.row_lock_wait_count) AS [total_row_lock_waits], + SUM(ios.row_lock_wait_in_ms) AS [total_row_lock_wait_in_ms], + SUM(ios.page_lock_wait_count) AS [total_page_lock_waits], + SUM(ios.page_lock_wait_in_ms) AS [total_page_lock_wait_in_ms], + SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) AS [total_lock_wait_in_ms] +FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) AS ios +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON ios.[object_id] = o.[object_id] +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ios.[object_id] = i.[object_id] +AND ios.index_id = i.index_id +WHERE o.[object_id] > 100 +GROUP BY o.name, i.name, ios.index_id, ios.partition_number +HAVING SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) > 0 +ORDER BY total_lock_wait_in_ms DESC OPTION (RECOMPILE); +------ + +-- This query is helpful for troubleshooting blocking and deadlocking issues + + + +-- Look at UDF execution statistics (Query 82) (UDF Statistics) +SELECT OBJECT_NAME(object_id) AS [Function Name], execution_count, + total_worker_time, total_logical_reads, total_physical_reads, total_elapsed_time, + total_elapsed_time/execution_count AS [avg_elapsed_time], + FORMAT(cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +FROM sys.dm_exec_function_stats WITH (NOLOCK) +WHERE database_id = DB_ID() +ORDER BY total_worker_time DESC OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Helps you investigate scalar UDF performance issues +-- Does not return information for table valued functions + +-- sys.dm_exec_function_stats (Transact-SQL) +-- https://bit.ly/2q1Q6BM + + +-- Get QueryStore Options for this database (Query 83) (QueryStore Options) +SELECT actual_state_desc, desired_state_desc, [interval_length_minutes], + current_storage_size_mb, [max_storage_size_mb], + query_capture_mode_desc, size_based_cleanup_mode_desc +FROM sys.database_query_store_options WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Requires that Query Store is enabled for this database + +-- Make sure that the actual_state_desc is the same as desired_state_desc +-- Make sure that the current_storage_size_mb is less than the max_storage_size_mb + +-- Tuning Workload Performance with Query Store +-- https://bit.ly/1kHSl7w + + +-- Get highest aggregate duration queries over last hour (Query 84) (High Aggregate Duration Queries) +WITH AggregatedDurationLastHour +AS +(SELECT q.query_id, SUM(rs.count_executions * rs.avg_duration) AS total_duration, + COUNT (DISTINCT p.plan_id) AS number_of_plans + FROM sys.query_store_query_text AS qt WITH (NOLOCK) + INNER JOIN sys.query_store_query AS q WITH (NOLOCK) + ON qt.query_text_id = q.query_text_id + INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) + ON q.query_id = p.query_id + INNER JOIN sys.query_store_runtime_stats AS rs WITH (NOLOCK) + ON rs.plan_id = p.plan_id + INNER JOIN sys.query_store_runtime_stats_interval AS rsi WITH (NOLOCK) + ON rsi.runtime_stats_interval_id = rs.runtime_stats_interval_id + WHERE rsi.start_time >= DATEADD(hour, -1, GETUTCDATE()) + AND rs.execution_type_desc = N'Regular' + GROUP BY q.query_id), OrderedDuration +AS +(SELECT query_id, total_duration, number_of_plans, + ROW_NUMBER () OVER (ORDER BY total_duration DESC, query_id) AS RN + FROM AggregatedDurationLastHour) +SELECT OBJECT_NAME(q.object_id) AS [Containing Object], qt.query_sql_text, +od.total_duration AS [Total Duration (microsecs)], +od.number_of_plans AS [Plan Count], +p.is_forced_plan, p.is_parallel_plan, p.is_trivial_plan, +q.query_parameterization_type_desc, p.[compatibility_level], +p.last_compile_start_time, +q.last_execution_time, +CONVERT(xml, p.query_plan) AS query_plan_xml +FROM OrderedDuration AS od +INNER JOIN sys.query_store_query AS q WITH (NOLOCK) +ON q.query_id = od.query_id +INNER JOIN sys.query_store_query_text AS qt WITH (NOLOCK) +ON q.query_text_id = qt.query_text_id +INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) +ON q.query_id = p.query_id +WHERE od.RN <= 50 +ORDER BY od.total_duration DESC OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Requires that QueryStore is enabled for this database + + + +-- Get highest aggregate CPU time queries over last hour (Query 85) (High Aggregate CPU Queries) +WITH AggregatedCPULastHour +AS +(SELECT q.query_id, SUM(rs.count_executions * rs.avg_cpu_time) AS total_cpu_time, + COUNT (DISTINCT p.plan_id) AS number_of_plans + FROM sys.query_store_query_text AS qt WITH (NOLOCK) + INNER JOIN sys.query_store_query AS q WITH (NOLOCK) + ON qt.query_text_id = q.query_text_id + INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) + ON q.query_id = p.query_id + INNER JOIN sys.query_store_runtime_stats AS rs WITH (NOLOCK) + ON rs.plan_id = p.plan_id + INNER JOIN sys.query_store_runtime_stats_interval AS rsi WITH (NOLOCK) + ON rsi.runtime_stats_interval_id = rs.runtime_stats_interval_id + WHERE rsi.start_time >= DATEADD(hour, -1, GETUTCDATE()) + AND rs.execution_type_desc = N'Regular' + GROUP BY q.query_id), OrderedDuration +AS +(SELECT query_id, total_cpu_time, number_of_plans, + ROW_NUMBER () OVER (ORDER BY total_cpu_time DESC, query_id) AS RN + FROM AggregatedCPULastHour) +SELECT OBJECT_NAME(q.object_id) AS [Containing Object], qt.query_sql_text, +od.total_cpu_time AS [Total CPU Time (microsecs)], +od.number_of_plans AS [Plan Count], +p.is_forced_plan, p.is_parallel_plan, p.is_trivial_plan, +q.query_parameterization_type_desc, p.[compatibility_level], +p.last_compile_start_time, +q.last_execution_time, +CONVERT(xml, p.query_plan) AS query_plan_xml +FROM OrderedDuration AS od +INNER JOIN sys.query_store_query AS q WITH (NOLOCK) +ON q.query_id = od.query_id +INNER JOIN sys.query_store_query_text AS qt WITH (NOLOCK) +ON q.query_text_id = qt.query_text_id +INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) +ON q.query_id = p.query_id +WHERE od.RN <= 50 +ORDER BY od.total_cpu_time DESC OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Requires that QueryStore is enabled for this database + + +-- Get input buffer information for the current database (Query 86) (Input Buffer) +SELECT es.session_id, DB_NAME(es.database_id) AS [Database Name], + es.login_time, es.cpu_time, es.logical_reads, es.memory_usage, + es.[status], ib.event_info AS [Input Buffer] +FROM sys.dm_exec_sessions AS es WITH (NOLOCK) +CROSS APPLY sys.dm_exec_input_buffer(es.session_id, NULL) AS ib +WHERE es.database_id = DB_ID() +AND es.session_id > 50 +AND es.session_id <> @@SPID OPTION (RECOMPILE); +------ + +-- Gives you input buffer information from all non-system sessions for the current database +-- Replaces DBCC INPUTBUFFER + +-- New DMF for retrieving input buffer in SQL Server +-- https://bit.ly/2uHKMbz + +-- sys.dm_exec_input_buffer (Transact-SQL) +-- https://bit.ly/2J5Hf9q + + + +-- Get any resumable index rebuild operation information (Query 87) (Resumable Index Rebuild) +SELECT OBJECT_NAME(iro.object_id) AS [Object Name], iro.index_id, iro.name AS [Index Name], + iro.sql_text, iro.last_max_dop_used, iro.partition_number, iro.state_desc, + iro.start_time, iro.percent_complete +FROM sys.index_resumable_operations AS iro WITH (NOLOCK) +OPTION (RECOMPILE); +------ + +-- index_resumable_operations (Transact-SQL) +-- https://bit.ly/2pYSWqq + + +-- Get database automatic tuning options (Query 88) (Automatic Tuning Options) +SELECT [name], desired_state_desc, actual_state_desc, reason_desc +FROM sys.database_automatic_tuning_options WITH (NOLOCK) +OPTION (RECOMPILE); +------ + +-- sys.database_automatic_tuning_options (Transact-SQL) +-- https://bit.ly/2FHhLkL + + + +-- Look at recent Full backups for the current database (Query 89) (Recent Full Backups) +SELECT TOP (30) bs.machine_name, bs.server_name, bs.database_name AS [Database Name], bs.recovery_model, +CONVERT (BIGINT, bs.backup_size / 1048576 ) AS [Uncompressed Backup Size (MB)], +CONVERT (BIGINT, bs.compressed_backup_size / 1048576 ) AS [Compressed Backup Size (MB)], +CONVERT (NUMERIC (20,2), (CONVERT (FLOAT, bs.backup_size) / +CONVERT (FLOAT, bs.compressed_backup_size))) AS [Compression Ratio], bs.has_backup_checksums, bs.is_copy_only, bs.encryptor_type, +DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) AS [Backup Elapsed Time (sec)], +bs.backup_finish_date AS [Backup Finish Date], bmf.physical_device_name AS [Backup Location], bmf.physical_block_size +FROM msdb.dbo.backupset AS bs WITH (NOLOCK) +INNER JOIN msdb.dbo.backupmediafamily AS bmf WITH (NOLOCK) +ON bs.media_set_id = bmf.media_set_id +WHERE bs.database_name = DB_NAME(DB_ID()) +AND bs.[type] = 'D' -- Change to L if you want Log backups +ORDER BY bs.backup_finish_date DESC OPTION (RECOMPILE); +------ + +-- Are your backup sizes and times changing over time? +-- Are you using backup compression? +-- Are you using backup checksums? +-- Are you doing copy_only backups? +-- Are you doing encrypted backups? +-- Have you done any backup tuning with striped backups, or changing the parameters of the backup command? + +-- In SQL Server 2016, native SQL Server backup compression actually works +-- much better with databases that are using TDE than in previous versions +-- https://bit.ly/28Rpb2x + + +-- These five Pluralsight Courses go into more detail about how to run these queries and interpret the results + +-- SQL Server 2017: Diagnosing Performance Issues with DMVs +-- https://bit.ly/2FqCeti + +-- SQL Server 2017: Diagnosing Configuration Issues with DMVs +-- https://bit.ly/2MSUDUL + + +-- SQL Server 2014 DMV Diagnostic Queries Part 1 +-- https://bit.ly/2plxCer + +-- SQL Server 2014 DMV Diagnostic Queries Part 2 +-- https://bit.ly/2IuJpzI + +-- SQL Server 2014 DMV Diagnostic Queries Part 3 +-- https://bit.ly/2FIlCPb + + + +-- Sign up for Microsoft Visual Studio Dev Essentials and get a free three month pass to Pluralsight + +-- Microsoft Visual Studio Dev Essentials +-- http://bit.ly/1q6xbDL + + +-- Sign up for Microsoft Azure Essentials and get lots of free Azure usage credits, MCP exam voucher, three month Pluralsight subscription + +-- Microsoft Azure Essentials +-- https://bit.ly/2JMWe8x + + +-- August 2017 blog series about upgrading and migrating to SQL Server 2016/2017 +-- https://bit.ly/2ftKVrX diff --git a/Scripts/SQL Server 2019 Diagnostic Information Queries.sql b/Scripts/SQL Server 2019 Diagnostic Information Queries.sql new file mode 100644 index 00000000..464e73f6 --- /dev/null +++ b/Scripts/SQL Server 2019 Diagnostic Information Queries.sql @@ -0,0 +1,2113 @@ + +-- SQL Server 2019 Diagnostic Information Queries +-- Glenn Berry +-- Last Modified: February 1, 2019 +-- https://www.sqlskills.com/blogs/glenn/ +-- http://sqlserverperformance.wordpress.com/ +-- Twitter: GlennAlanBerry + +-- Please listen to my Pluralsight courses +-- https://www.pluralsight.com/author/glenn-berry + +-- If you want to find all of our SQLskills SQL101 blog posts, check out https://bit.ly/2qLwfXW + + +-- Please make sure you are using the correct version of these diagnostic queries for your version of SQL Server + + +-- If you like PowerShell, there is a very useful community solution for running these queries in an automated fashion +-- https://dbatools.io/ + +-- Invoke-DbaDiagnosticQuery +-- https://dbatools.io/functions/invoke-dbadiagnosticquery/ + + +--****************************************************************************** +--* Copyright (C) 2019 Glenn Berry, SQLskills.com +--* All rights reserved. +--* +--* For more scripts and sample code, check out +--* https://www.sqlskills.com/blogs/glenn +--* +--* You may alter this code for your own *non-commercial* purposes. You may +--* republish altered code as long as you include this copyright and give due credit. +--* +--* +--* THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF +--* ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED +--* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A +--* PARTICULAR PURPOSE. +--* +--****************************************************************************** + +-- Check the major product version to see if it is SQL Server 2019 CTP 2 or greater +IF NOT EXISTS (SELECT * WHERE CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')) LIKE '15%') + BEGIN + DECLARE @ProductVersion varchar(128) = CONVERT(varchar(128), SERVERPROPERTY('ProductVersion')); + RAISERROR ('Script does not match the ProductVersion [%s] of this instance. Many of these queries may not work on this version.' , 18 , 16 , @ProductVersion); + END + ELSE + PRINT N'You have the correct major version of SQL Server for this diagnostic information script'; + + +-- Instance level queries ******************************* + +-- SQL and OS Version information for current instance (Query 1) (Version Info) +SELECT @@SERVERNAME AS [Server Name], @@VERSION AS [SQL Server and OS Version Info]; +------ + +-- SQL Server 2019 Builds +-- Build Description Release Date URL to KB Article +-- 15.0.1000.34 CTP 2.0 9/24/2018 +-- 15.0.1100.94 CTP 2.1 11/7/2018 +-- 15.0.1200.24 CTP 2.2 12/6/2018 + + + + +-- How to determine the version, edition and update level of SQL Server and its components +-- https://bit.ly/2oAjKgW + +-- What's New in SQL Server 2019 (Database Engine) +-- https://bit.ly/2Q29fhz + +-- What's New in SQL Server 2019 +-- https://bit.ly/2PY442b + +-- Announcing the Modern Servicing Model for SQL Server +-- https://bit.ly/2xHnh0l + +-- SQL Server Service Packs are discontinued starting from SQL Server 2017 +-- https://bit.ly/2GTkbgt + +-- Update Center for Microsoft SQL Server +-- https://bit.ly/2pZptuQ + +-- Download SQL Server Management Studio (SSMS) +-- https://bit.ly/1OcupT9 + +-- Download and install Azure Data Studio +-- https://bit.ly/2vgke1A + + + +-- Get socket, physical core and logical core count from the SQL Server Error log. (Query 2) (Core Counts) +-- This query might take a few seconds depending on the size of your error log +EXEC sys.xp_readerrorlog 0, 1, N'detected', N'socket'; +------ + +-- This can help you determine the exact core counts used by SQL Server and whether HT is enabled or not +-- It can also help you confirm your SQL Server licensing model +-- Be on the lookout for this message "using 40 logical processors based on SQL Server licensing" +-- (when you have more than 40 logical cores) which means grandfathered Server/CAL licensing +-- This query will return no results if your error log has been recycled since the instance was last started + + + +-- Get selected server properties (Query 3) (Server Properties) +SELECT SERVERPROPERTY('MachineName') AS [MachineName], +SERVERPROPERTY('ServerName') AS [ServerName], +SERVERPROPERTY('InstanceName') AS [Instance], +SERVERPROPERTY('IsClustered') AS [IsClustered], +SERVERPROPERTY('ComputerNamePhysicalNetBIOS') AS [ComputerNamePhysicalNetBIOS], +SERVERPROPERTY('Edition') AS [Edition], +SERVERPROPERTY('ProductLevel') AS [ProductLevel], -- What servicing branch (RTM/SP/CU) +SERVERPROPERTY('ProductUpdateLevel') AS [ProductUpdateLevel], -- Within a servicing branch, what CU# is applied +SERVERPROPERTY('ProductVersion') AS [ProductVersion], +SERVERPROPERTY('ProductMajorVersion') AS [ProductMajorVersion], +SERVERPROPERTY('ProductMinorVersion') AS [ProductMinorVersion], +SERVERPROPERTY('ProductBuild') AS [ProductBuild], +SERVERPROPERTY('ProductBuildType') AS [ProductBuildType], -- Is this a GDR or OD hotfix (NULL if on a CU build) +SERVERPROPERTY('ProductUpdateReference') AS [ProductUpdateReference], -- KB article number that is applicable for this build +SERVERPROPERTY('ProcessID') AS [ProcessID], +SERVERPROPERTY('Collation') AS [Collation], +SERVERPROPERTY('IsFullTextInstalled') AS [IsFullTextInstalled], +SERVERPROPERTY('IsIntegratedSecurityOnly') AS [IsIntegratedSecurityOnly], +SERVERPROPERTY('FilestreamConfiguredLevel') AS [FilestreamConfiguredLevel], +SERVERPROPERTY('IsHadrEnabled') AS [IsHadrEnabled], +SERVERPROPERTY('HadrManagerStatus') AS [HadrManagerStatus], +SERVERPROPERTY('InstanceDefaultDataPath') AS [InstanceDefaultDataPath], +SERVERPROPERTY('InstanceDefaultLogPath') AS [InstanceDefaultLogPath], +SERVERPROPERTY('BuildClrVersion') AS [Build CLR Version], +SERVERPROPERTY('IsXTPSupported') AS [IsXTPSupported], +SERVERPROPERTY('IsPolybaseInstalled') AS [IsPolybaseInstalled], -- New for SQL Server 2016 +SERVERPROPERTY('IsAdvancedAnalyticsInstalled') AS [IsRServicesInstalled]; -- New for SQL Server 2016 +------ + +-- This gives you a lot of useful information about your instance of SQL Server, +-- such as the ProcessID for SQL Server and your collation +-- Note: Some columns will be NULL on older SQL Server builds + +-- SERVERPROPERTY (Transact-SQL) +-- https://bit.ly/2eeaXeI + + + +-- Get instance-level configuration values for instance (Query 4) (Configuration Values) +SELECT name, value, value_in_use, minimum, maximum, [description], is_dynamic, is_advanced +FROM sys.configurations WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Focus on these settings: +-- automatic soft-NUMA disabled (should be 0 in most cases) +-- backup checksum default (should be 1) +-- backup compression default (should be 1 in most cases) +-- clr enabled (only enable if it is needed) +-- cost threshold for parallelism (depends on your workload) +-- lightweight pooling (should be zero) +-- max degree of parallelism (depends on your workload and hardware) +-- max server memory (MB) (set to an appropriate value, not the default) +-- optimize for ad hoc workloads (should be 1) +-- priority boost (should be zero) +-- remote admin connections (should be 1) + +-- sys.configurations (Transact-SQL) +-- https://bit.ly/2HsyDZI + + +-- Returns a list of all global trace flags that are enabled (Query 5) (Global Trace Flags) +DBCC TRACESTATUS (-1); +------ + +-- If no global trace flags are enabled, no results will be returned. +-- It is very useful to know what global trace flags are currently enabled as part of the diagnostic process. + +-- Common trace flags that should be enabled in most cases +-- TF 3226 - Supresses logging of successful database backup messages to the SQL Server Error Log +-- https://bit.ly/2p6MTjS + +-- TF 6534 - Enables use of native code to improve performance with spatial data +-- https://bit.ly/2HrQUpU + +-- The behavior of TF 1117, 1118 are enabled for tempdb in SQL Server 2016 by default +-- SQL 2016 It Just Runs Faster: -T1117 and -T1118 changes for TEMPDB and user databases +-- https://bit.ly/2lbNWxK + +-- The behavior of TF 2371 is enabled by default in SQL Server 2016 and newer (in compat level 130 and higher) + +-- DBCC TRACEON - Trace Flags (Transact-SQL) +-- https://bit.ly/2FuSvPg + + + + + +-- Returns status of instant file initialization (Query 6) (IFI Status) +EXEC sys.xp_readerrorlog 0, 1, N'Database Instant File Initialization'; +------ + +-- Lets you determine whether Instant File Initialization (IFI) is enabled for the instance +-- This should be enabled in the vast majority of cases +-- SQL Server 2016 and newer lets you enable this during the SQL server installation process + +-- Database Instant File Initialization +-- https://bit.ly/2nTX74y + +-- Misconceptions around instant file initialization +-- https://bit.ly/2oBSKgZ + + + +-- SQL Server Process Address space info (Query 7) (Process Memory) +-- (shows whether locked pages is enabled, among other things) +SELECT physical_memory_in_use_kb/1024 AS [SQL Server Memory Usage (MB)], + locked_page_allocations_kb/1024 AS [SQL Server Locked Pages Allocation (MB)], + large_page_allocations_kb/1024 AS [SQL Server Large Pages Allocation (MB)], + page_fault_count, memory_utilization_percentage, available_commit_limit_kb, + process_physical_memory_low, process_virtual_memory_low +FROM sys.dm_os_process_memory WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You want to see 0 for process_physical_memory_low +-- You want to see 0 for process_virtual_memory_low +-- This indicates that you are not under internal memory pressure +-- If locked_page_allocations_kb > 0, then LPIM is enabled + +-- How to enable the "locked pages" feature in SQL Server 2012 +-- https://bit.ly/2F5UjOA + +-- Memory Management Architecture Guide +-- https://bit.ly/2JKkadC + + + +-- SQL Server Services information (Query 8) (SQL Server Services Info) +SELECT servicename, process_id, startup_type_desc, status_desc, +last_startup_time, service_account, is_clustered, cluster_nodename, [filename], +instant_file_initialization_enabled +FROM sys.dm_server_services WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Tells you the account being used for the SQL Server Service and the SQL Agent Service +-- Shows the process_id, when they were last started, and their current status +-- Also shows whether you are running on a failover cluster instance, and what node you are running on +-- Also shows whether IFI is enabled + +-- sys.dm_server_services (Transact-SQL) +-- https://bit.ly/2oKa1Un + + +-- Last backup information by database (Query 9) (Last Backup By Database) +SELECT ISNULL(d.[name], bs.[database_name]) AS [Database], d.recovery_model_desc AS [Recovery Model], + d.log_reuse_wait_desc AS [Log Reuse Wait Desc], + MAX(CASE WHEN [type] = 'D' THEN bs.backup_finish_date ELSE NULL END) AS [Last Full Backup], + MAX(CASE WHEN [type] = 'I' THEN bs.backup_finish_date ELSE NULL END) AS [Last Differential Backup], + MAX(CASE WHEN [type] = 'L' THEN bs.backup_finish_date ELSE NULL END) AS [Last Log Backup] +FROM sys.databases AS d WITH (NOLOCK) +LEFT OUTER JOIN msdb.dbo.backupset AS bs WITH (NOLOCK) +ON bs.[database_name] = d.[name] +AND bs.backup_finish_date > GETDATE()- 30 +WHERE d.name <> N'tempdb' +GROUP BY ISNULL(d.[name], bs.[database_name]), d.recovery_model_desc, d.log_reuse_wait_desc, d.[name] +ORDER BY d.recovery_model_desc, d.[name] OPTION (RECOMPILE); +------ + +-- This helps you spot runaway transaction logs and other issues with your backup schedule + + +-- Get SQL Server Agent jobs and Category information (Query 10) (SQL Server Agent Jobs) +SELECT sj.name AS [Job Name], sj.[description] AS [Job Description], SUSER_SNAME(sj.owner_sid) AS [Job Owner], +sj.date_created AS [Date Created], sj.[enabled] AS [Job Enabled], +sj.notify_email_operator_id, sj.notify_level_email, sc.name AS [CategoryName], +s.[enabled] AS [Sched Enabled], js.next_run_date, js.next_run_time +FROM msdb.dbo.sysjobs AS sj WITH (NOLOCK) +INNER JOIN msdb.dbo.syscategories AS sc WITH (NOLOCK) +ON sj.category_id = sc.category_id +LEFT OUTER JOIN msdb.dbo.sysjobschedules AS js WITH (NOLOCK) +ON sj.job_id = js.job_id +LEFT OUTER JOIN msdb.dbo.sysschedules AS s WITH (NOLOCK) +ON js.schedule_id = s.schedule_id +ORDER BY sj.name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent jobs, who owns them and how they are configured +-- Look for Agent jobs that are not owned by sa +-- Look for jobs that have a notify_email_operator_id set to 0 (meaning no operator) +-- Look for jobs that have a notify_level_email set to 0 (meaning no e-mail is ever sent) +-- +-- MSDN sysjobs documentation +-- https://bit.ly/2paDEOP + +-- SQL Server Maintenance Solution +-- https://bit.ly/1pgchQu + + +-- Get SQL Server Agent Alert Information (Query 11) (SQL Server Agent Alerts) +SELECT name, event_source, message_id, severity, [enabled], has_notification, + delay_between_responses, occurrence_count, last_occurrence_date, last_occurrence_time +FROM msdb.dbo.sysalerts WITH (NOLOCK) +ORDER BY name OPTION (RECOMPILE); +------ + +-- Gives you some basic information about your SQL Server Agent Alerts +-- (which are different from SQL Server Agent jobs) +-- Read more about Agent Alerts here: https://bit.ly/2Giz0Xf + + + +-- Host information (Query 12) (Host Info) +SELECT host_platform, host_distribution, host_release, + host_service_pack_level, host_sku, os_language_version +FROM sys.dm_os_host_info WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- host_release codes (only valid for Windows) +-- 10.0 is either Windows 10 or Windows Server 2016 +-- 6.3 is either Windows 8.1 or Windows Server 2012 R2 +-- 6.2 is either Windows 8 or Windows Server 2012 + + +-- host_sku codes (only valid for Windows) +-- 4 is Enterprise Edition +-- 7 is Standard Server Edition +-- 8 is Datacenter Server Edition +-- 10 is Enterprise Server Edition +-- 48 is Professional Edition +-- 161 is Pro for Workstations + +-- 1033 for os_language_version is US-English + +-- SQL Server 2019 requires Windows Server 2012 or newer (may change by RTM) + +-- Hardware and Software Requirements for Installing SQL Server +-- https://bit.ly/2y3ka5L + +-- Using SQL Server in Windows 8 and later versions of Windows operating system +-- https://bit.ly/2F7Ax0P + + +-- SQL Server NUMA Node information (Query 13) (SQL Server NUMA Info) +SELECT node_id, node_state_desc, memory_node_id, processor_group, cpu_count, online_scheduler_count, + idle_scheduler_count, active_worker_count, avg_load_balance, resource_monitor_state +FROM sys.dm_os_nodes WITH (NOLOCK) +WHERE node_state_desc <> N'ONLINE DAC' OPTION (RECOMPILE); +------ + +-- Gives you some useful information about the composition and relative load on your NUMA nodes +-- You want to see an equal number of schedulers on each NUMA node +-- Watch out if SQL Server 2019 Standard Edition has been installed +-- on a physical or virtual machine with more than four sockets or more than 24 physical cores + +-- sys.dm_os_nodes (Transact-SQL) +-- https://bit.ly/2pn5Mw8 + +-- Balancing Your Available SQL Server Core Licenses Evenly Across NUMA Nodes +-- https://bit.ly/2vfC4Rq + + + +-- Good basic information about OS memory amounts and state (Query 14) (System Memory) +SELECT total_physical_memory_kb/1024 AS [Physical Memory (MB)], + available_physical_memory_kb/1024 AS [Available Memory (MB)], + total_page_file_kb/1024 AS [Total Page File (MB)], + available_page_file_kb/1024 AS [Available Page File (MB)], + system_cache_kb/1024 AS [System Cache (MB)], + system_memory_state_desc AS [System Memory State] +FROM sys.dm_os_sys_memory WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You want to see "Available physical memory is high" for System Memory State +-- This indicates that you are not under external memory pressure + +-- Possible System Memory State values: +-- Available physical memory is high +-- Physical memory usage is steady +-- Available physical memory is low +-- Available physical memory is running low +-- Physical memory state is transitioning + +-- sys.dm_os_sys_memory (Transact-SQL) +-- https://bit.ly/2pcV0xq + + + +-- You can skip the next two queries if you know you don't have a clustered instance + + +-- Get information about your cluster nodes and their status (Query 15) (Cluster Node Properties) +-- (if your database server is in a failover cluster) +SELECT NodeName, status_description, is_current_owner +FROM sys.dm_os_cluster_nodes WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Knowing which node owns the cluster resources is critical +-- Especially when you are installing Windows or SQL Server updates +-- You will see no results if your instance is not clustered + +-- Recommended hotfixes and updates for Windows Server 2012 R2-based failover clusters +-- https://bit.ly/1z5BfCw + + +-- Get information about any AlwaysOn AG cluster this instance is a part of (Query 16) (AlwaysOn AG Cluster) +SELECT cluster_name, quorum_type_desc, quorum_state_desc +FROM sys.dm_hadr_cluster WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- You will see no results if your instance is not using AlwaysOn AGs + + +-- Good overview of AG health and status (Query 17) (AlwaysOn AG Status) +SELECT ag.name AS [AG Name], ar.replica_server_name, ar.availability_mode_desc, adc.[database_name], + drs.is_local, drs.is_primary_replica, drs.synchronization_state_desc, drs.is_commit_participant, + drs.synchronization_health_desc, drs.recovery_lsn, drs.truncation_lsn, drs.last_sent_lsn, + drs.last_sent_time, drs.last_received_lsn, drs.last_received_time, drs.last_hardened_lsn, + drs.last_hardened_time, drs.last_redone_lsn, drs.last_redone_time, drs.log_send_queue_size, + drs.log_send_rate, drs.redo_queue_size, drs.redo_rate, drs.filestream_send_rate, + drs.end_of_log_lsn, drs.last_commit_lsn, drs.last_commit_time, drs.database_state_desc +FROM sys.dm_hadr_database_replica_states AS drs WITH (NOLOCK) +INNER JOIN sys.availability_databases_cluster AS adc WITH (NOLOCK) +ON drs.group_id = adc.group_id +AND drs.group_database_id = adc.group_database_id +INNER JOIN sys.availability_groups AS ag WITH (NOLOCK) +ON ag.group_id = drs.group_id +INNER JOIN sys.availability_replicas AS ar WITH (NOLOCK) +ON drs.group_id = ar.group_id +AND drs.replica_id = ar.replica_id +ORDER BY ag.name, ar.replica_server_name, adc.[database_name] OPTION (RECOMPILE); + +-- You will see no results if your instance is not using AlwaysOn AGs + +-- SQL Server 2016 It Just Runs Faster: Always On Availability Groups Turbocharged +-- https://bit.ly/2dn1H6r + + +-- Hardware information from SQL Server 2019 (Query 18) (Hardware Info) +SELECT cpu_count AS [Logical CPU Count], scheduler_count, + (socket_count * cores_per_socket) AS [Physical Core Count], + socket_count AS [Socket Count], cores_per_socket, numa_node_count, + physical_memory_kb/1024 AS [Physical Memory (MB)], + max_workers_count AS [Max Workers Count], + affinity_type_desc AS [Affinity Type], + sqlserver_start_time AS [SQL Server Start Time], + DATEDIFF(hour, sqlserver_start_time, GETDATE()) AS [SQL Server Up Time (hrs)], + virtual_machine_type_desc AS [Virtual Machine Type], + softnuma_configuration_desc AS [Soft NUMA Configuration], + sql_memory_model_desc, container_type_desc -- New in SQL Server 2019 +FROM sys.dm_os_sys_info WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- Gives you some good basic hardware information about your database server +-- Note: virtual_machine_type_desc of HYPERVISOR does not automatically mean you are running SQL Server inside of a VM +-- It merely indicates that you have a hypervisor running on your host + +-- sys.dm_os_sys_info (Transact-SQL) +-- https://bit.ly/2pczOYs + +-- Soft NUMA configuration was a new column for SQL Server 2016 +-- OFF = Soft-NUMA feature is OFF +-- ON = SQL Server automatically determines the NUMA node sizes for Soft-NUMA +-- MANUAL = Manually configured soft-NUMA + +-- Configure SQL Server to Use Soft-NUMA (SQL Server) +-- https://bit.ly/2HTpKJt + +-- sql_memory_model_desc values (Added in SQL Server 2016 SP1) +-- CONVENTIONAL +-- LOCK_PAGES +-- LARGE_PAGES + + +-- Get System Manufacturer and model number from SQL Server Error log (Query 19) (System Manufacturer) +EXEC sys.xp_readerrorlog 0, 1, N'Manufacturer'; +------ + +-- This can help you determine the capabilities and capacities of your database server +-- Can also be used to confirm if you are running in a VM +-- This query might take a few seconds if you have not recycled your error log recently +-- This query will return no results if your error log has been recycled since the instance was started + + +-- Get pvscsi info from Windows Registry (Query 20) (PVSCSI Driver Parameters) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'SYSTEM\CurrentControlSet\services\pvscsi\Parameters\Device', N'DriverParameter'; +------ + +-- This is valid for VMware VMs +-- Recommended value for intensive I/O patterns from VMware is: RequestRingPages=32,MaxQueueDepth=254 +-- https://kb.vmware.com/s/article/2053145 +-- Does not work on Linux + + +-- Get BIOS date from Windows Registry (Query 21) (BIOS Date) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\BIOS', N'BiosReleaseDate'; +------ + +-- Helps you understand whether the main system BIOS is up to date, and the possible age of the hardware +-- Not as useful for virtualization +-- Does not work on Linux + + +-- Get processor description from Windows Registry (Query 22) (Processor Description) +EXEC sys.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'HARDWARE\DESCRIPTION\System\CentralProcessor\0', N'ProcessorNameString'; +------ + +-- Gives you the model number and rated clock speed of your processor(s) +-- Your processors may be running at less than the rated clock speed due +-- to the Windows Power Plan or hardware power management +-- Does not work on Linux + +-- You can use CPU-Z to get your actual CPU core speed and a lot of other useful information +-- https://bit.ly/QhR6xF + +-- You can learn more about processor selection for SQL Server by following this link +-- https://bit.ly/2F3aVlP + + + +-- See if buffer pool extension (BPE) is enabled (Query 23) (BPE Configuration) +SELECT [path], state_description, current_size_in_kb, +CAST(current_size_in_kb/1048576.0 AS DECIMAL(10,2)) AS [Size (GB)] +FROM sys.dm_os_buffer_pool_extension_configuration WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- BPE is available in both Standard Edition and Enterprise Edition +-- It is a more interesting feature for Standard Edition + +-- Buffer Pool Extension to SSDs in SQL Server 2014 +-- https://bit.ly/1bm08m8 + +-- Buffer Pool Extension +-- https://bit.ly/2oBuieO + + + +-- Look at buffer descriptors to see BPE usage by database (Query 24) (BPE Usage) +SELECT DB_NAME(database_id) AS [Database Name], COUNT(page_id) AS [Page Count], +CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], +AVG(read_microsec) AS [Avg Read Time (microseconds)] +FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) +WHERE database_id <> 32767 +AND is_in_bpool_extension = 1 +GROUP BY DB_NAME(database_id) +ORDER BY [Buffer size(MB)] DESC OPTION (RECOMPILE); +------ + +-- You will see no results if BPE is not enabled or if there is no BPE usage + + +-- Get information on location, time and size of any memory dumps from SQL Server (Query 25) (Memory Dump Info) +SELECT [filename], creation_time, size_in_bytes/1048576.0 AS [Size (MB)] +FROM sys.dm_server_memory_dumps WITH (NOLOCK) +ORDER BY creation_time DESC OPTION (RECOMPILE); +------ + +-- This will not return any rows if you have +-- not had any memory dumps (which is a good thing) + +-- sys.dm_server_memory_dumps (Transact-SQL) +-- https://bit.ly/2elwWll + + + +-- Look at Suspect Pages table (Query 26) (Suspect Pages) +SELECT DB_NAME(database_id) AS [Database Name], [file_id], page_id, + event_type, error_count, last_update_date +FROM msdb.dbo.suspect_pages WITH (NOLOCK) +ORDER BY database_id OPTION (RECOMPILE); +------ + +-- event_type value descriptions +-- 1 = 823 error caused by an operating system CRC error +-- or 824 error other than a bad checksum or a torn page (for example, a bad page ID) +-- 2 = Bad checksum +-- 3 = Torn page +-- 4 = Restored (The page was restored after it was marked bad) +-- 5 = Repaired (DBCC repaired the page) +-- 7 = Deallocated by DBCC + +-- Ideally, this query returns no results. The table is limited to 1000 rows. +-- If you do get results here, you should do further investigation to determine the root cause + +-- Manage the suspect_pages Table +-- https://bit.ly/2Fvr1c9 + + +-- Get number of data files in tempdb database (Query 27) (TempDB Data Files) +EXEC sys.xp_readerrorlog 0, 1, N'The tempdb database has'; +------ + +-- Get the number of data files in the tempdb database +-- 4-8 data files that are all the same size is a good starting point +-- This query will return no results if your error log has been recycled since the instance was last started + + +-- File names and paths for all user and system databases on instance (Query 28) (Database Filenames and Paths) +SELECT DB_NAME([database_id]) AS [Database Name], + [file_id], [name], physical_name, [type_desc], state_desc, + is_percent_growth, growth, + CONVERT(bigint, growth/128.0) AS [Growth in MB], + CONVERT(bigint, size/128.0) AS [Total Size in MB] +FROM sys.master_files WITH (NOLOCK) +ORDER BY DB_NAME([database_id]), [file_id] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- Are data files and log files on different drives? +-- Is everything on the C: drive? +-- Is tempdb on dedicated drives? +-- Is there only one tempdb data file? +-- Are all of the tempdb data files the same size? +-- Are there multiple data files for user databases? +-- Is percent growth enabled for any files (which is bad)? + + +-- Drive information for all fixed drives visible to the operating system (Query 29) (Fixed Drives) +SELECT fixed_drive_path, drive_type_desc, +CONVERT(DECIMAL(18,2), free_space_in_bytes/1073741824.0) AS [Available Space (GB)] +FROM sys.dm_os_enumerate_fixed_drives WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- This shows all of your fixed drives, not just LUNs with SQL Server database files + + + +-- Volume info for all LUNS that have database files on the current instance (Query 30) (Volume Info) +SELECT DISTINCT vs.volume_mount_point, vs.file_system_type, vs.logical_volume_name, +CONVERT(DECIMAL(18,2), vs.total_bytes/1073741824.0) AS [Total Size (GB)], +CONVERT(DECIMAL(18,2), vs.available_bytes/1073741824.0) AS [Available Size (GB)], +CONVERT(DECIMAL(18,2), vs.available_bytes * 1. / vs.total_bytes * 100.) AS [Space Free %], +vs.supports_compression, vs.is_compressed, +vs.supports_sparse_files, vs.supports_alternate_streams +FROM sys.master_files AS f WITH (NOLOCK) +CROSS APPLY sys.dm_os_volume_stats(f.database_id, f.[file_id]) AS vs +ORDER BY vs.volume_mount_point OPTION (RECOMPILE); +------ + +-- Shows you the total and free space on the LUNs where you have database files +-- Being low on free space can negatively affect performance + +-- sys.dm_os_volume_stats (Transact-SQL) +-- https://bit.ly/2oBPNNr + + + +-- Drive level latency information (Query 31) (Drive Level Latency) +-- Based on code from Jimmy May +SELECT tab.[Drive], tab.volume_mount_point AS [Volume Mount Point], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (io_stall_read_ms/num_of_reads) + END AS [Read Latency], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (io_stall_write_ms/num_of_writes) + END AS [Write Latency], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE (io_stall/(num_of_reads + num_of_writes)) + END AS [Overall Latency], + CASE + WHEN num_of_reads = 0 THEN 0 + ELSE (num_of_bytes_read/num_of_reads) + END AS [Avg Bytes/Read], + CASE + WHEN num_of_writes = 0 THEN 0 + ELSE (num_of_bytes_written/num_of_writes) + END AS [Avg Bytes/Write], + CASE + WHEN (num_of_reads = 0 AND num_of_writes = 0) THEN 0 + ELSE ((num_of_bytes_read + num_of_bytes_written)/(num_of_reads + num_of_writes)) + END AS [Avg Bytes/Transfer] +FROM (SELECT LEFT(UPPER(mf.physical_name), 2) AS Drive, SUM(num_of_reads) AS num_of_reads, + SUM(io_stall_read_ms) AS io_stall_read_ms, SUM(num_of_writes) AS num_of_writes, + SUM(io_stall_write_ms) AS io_stall_write_ms, SUM(num_of_bytes_read) AS num_of_bytes_read, + SUM(num_of_bytes_written) AS num_of_bytes_written, SUM(io_stall) AS io_stall, vs.volume_mount_point + FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS vfs + INNER JOIN sys.master_files AS mf WITH (NOLOCK) + ON vfs.database_id = mf.database_id AND vfs.file_id = mf.file_id + CROSS APPLY sys.dm_os_volume_stats(mf.database_id, mf.[file_id]) AS vs + GROUP BY LEFT(UPPER(mf.physical_name), 2), vs.volume_mount_point) AS tab +ORDER BY [Overall Latency] OPTION (RECOMPILE); +------ + +-- Shows you the drive-level latency for reads and writes, in milliseconds +-- Latency above 30-40ms is usually a problem +-- These latency numbers include all file activity against all SQL Server +-- database files on each drive since SQL Server was last started + + +-- Calculates average latency per read, per write, and per total input/output for each database file (Query 32) (IO Latency by File) +SELECT DB_NAME(fs.database_id) AS [Database Name], CAST(fs.io_stall_read_ms/(1.0 + fs.num_of_reads) AS NUMERIC(10,1)) AS [avg_read_latency_ms], +CAST(fs.io_stall_write_ms/(1.0 + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_write_latency_ms], +CAST((fs.io_stall_read_ms + fs.io_stall_write_ms)/(1.0 + fs.num_of_reads + fs.num_of_writes) AS NUMERIC(10,1)) AS [avg_io_latency_ms], +CONVERT(DECIMAL(18,2), mf.size/128.0) AS [File Size (MB)], mf.physical_name, mf.type_desc, fs.io_stall_read_ms, fs.num_of_reads, +fs.io_stall_write_ms, fs.num_of_writes, fs.io_stall_read_ms + fs.io_stall_write_ms AS [io_stalls], fs.num_of_reads + fs.num_of_writes AS [total_io], +io_stall_queued_read_ms AS [Resource Governor Total Read IO Latency (ms)], io_stall_queued_write_ms AS [Resource Governor Total Write IO Latency (ms)] +FROM sys.dm_io_virtual_file_stats(null,null) AS fs +INNER JOIN sys.master_files AS mf WITH (NOLOCK) +ON fs.database_id = mf.database_id +AND fs.[file_id] = mf.[file_id] +ORDER BY avg_io_latency_ms DESC OPTION (RECOMPILE); +------ + +-- Helps determine which database files on the entire instance have the most I/O bottlenecks +-- This can help you decide whether certain LUNs are overloaded and whether you might +-- want to move some files to a different location or perhaps improve your I/O performance +-- These latency numbers include all file activity against each SQL Server +-- database file since SQL Server was last started + + +-- Look for I/O requests taking longer than 15 seconds in the six most recent SQL Server Error Logs (Query 33) (IO Warnings) +CREATE TABLE #IOWarningResults(LogDate datetime, ProcessInfo sysname, LogText nvarchar(1000)); + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 0, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 1, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 2, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 3, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 4, 1, N'taking longer than 15 seconds'; + + INSERT INTO #IOWarningResults + EXEC xp_readerrorlog 5, 1, N'taking longer than 15 seconds'; + +SELECT LogDate, ProcessInfo, LogText +FROM #IOWarningResults +ORDER BY LogDate DESC; + +DROP TABLE #IOWarningResults; +------ + +-- Finding 15 second I/O warnings in the SQL Server Error Log is useful evidence of +-- poor I/O performance (which might have many different causes) +-- Look to see if you see any patterns in the results (same files, same drives, same time of day, etc.) + +-- Diagnostics in SQL Server help detect stalled and stuck I/O operations +-- https://bit.ly/2qtaw73 + + + +-- Resource Governor Resource Pool information (Query 34) (RG Resource Pools) +SELECT pool_id, [Name], statistics_start_time, + min_memory_percent, max_memory_percent, + max_memory_kb/1024 AS [max_memory_mb], + used_memory_kb/1024 AS [used_memory_mb], + target_memory_kb/1024 AS [target_memory_mb], + min_iops_per_volume, max_iops_per_volume +FROM sys.dm_resource_governor_resource_pools WITH (NOLOCK) +OPTION (RECOMPILE); +------ + +-- sys.dm_resource_governor_resource_pools (Transact-SQL) +-- https://bit.ly/2MVU0Vy + + + +-- Recovery model, log reuse wait description, log file size, log usage size (Query 35) (Database Properties) +-- and compatibility level for all databases on instance +SELECT db.[name] AS [Database Name], SUSER_SNAME(db.owner_sid) AS [Database Owner], db.recovery_model_desc AS [Recovery Model], +db.state_desc, db.containment_desc, db.log_reuse_wait_desc AS [Log Reuse Wait Description], +CONVERT(DECIMAL(18,2), ls.cntr_value/1024.0) AS [Log Size (MB)], CONVERT(DECIMAL(18,2), lu.cntr_value/1024.0) AS [Log Used (MB)], +CAST(CAST(lu.cntr_value AS FLOAT) / CAST(ls.cntr_value AS FLOAT)AS DECIMAL(18,2)) * 100 AS [Log Used %], +db.[compatibility_level] AS [DB Compatibility Level], +db.is_mixed_page_allocation_on, db.page_verify_option_desc AS [Page Verify Option], +db.is_auto_create_stats_on, db.is_auto_update_stats_on, db.is_auto_update_stats_async_on, db.is_parameterization_forced, +db.snapshot_isolation_state_desc, db.is_read_committed_snapshot_on, db.is_auto_close_on, db.is_auto_shrink_on, +db.target_recovery_time_in_seconds, db.is_cdc_enabled, db.is_published, db.is_distributor, +db.group_database_id, db.replica_id,db.is_memory_optimized_elevate_to_snapshot_on, +db.delayed_durability_desc, db.is_auto_create_stats_incremental_on, +db.is_query_store_on, db.is_sync_with_backup, db.is_temporal_history_retention_enabled, +db.is_supplemental_logging_enabled, db.is_remote_data_archive_enabled, +db.is_encrypted, de.encryption_state, de.percent_complete, de.key_algorithm, de.key_length, db.resource_pool_id +FROM sys.databases AS db WITH (NOLOCK) +INNER JOIN sys.dm_os_performance_counters AS lu WITH (NOLOCK) +ON db.name = lu.instance_name +INNER JOIN sys.dm_os_performance_counters AS ls WITH (NOLOCK) +ON db.name = ls.instance_name +LEFT OUTER JOIN sys.dm_database_encryption_keys AS de WITH (NOLOCK) +ON db.database_id = de.database_id +WHERE lu.counter_name LIKE N'Log File(s) Used Size (KB)%' +AND ls.counter_name LIKE N'Log File(s) Size (KB)%' +AND ls.cntr_value > 0 +ORDER BY db.[name] OPTION (RECOMPILE); +------ + +-- Things to look at: +-- How many databases are on the instance? +-- What recovery models are they using? +-- What is the log reuse wait description? +-- How full are the transaction logs? +-- What compatibility level are the databases on? +-- What is the Page Verify Option? (should be CHECKSUM) +-- Is Auto Update Statistics Asynchronously enabled? +-- Is Delayed Durability enabled +-- Make sure auto_shrink and auto_close are not enabled! + +-- is_mixed_page_allocation_on is a new property for SQL Server 2016. Equivalent to TF 1118 for a user database +-- SQL Server 2016: Changes in default behavior for autogrow and allocations for tempdb and user databases +-- https://bit.ly/2evRZSR + +-- A non-zero value for target_recovery_time_in_seconds means that indirect checkpoint is enabled +-- If the setting has a zero value it indicates that automatic checkpoint is enabled + +-- Changes in SQL Server 2016 Checkpoint Behavior +-- https://bit.ly/2pdggk3 + + +-- Missing Indexes for all databases by Index Advantage (Query 36) (Missing Indexes All Databases) +SELECT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +FORMAT(migs.last_user_seek, 'yyyy-MM-dd HH:mm:ss') AS [last_user_seek], +mid.[statement] AS [Database.Schema.Table], +COUNT(1) OVER(PARTITION BY mid.[statement]) AS [missing_indexes_for_table], +COUNT(1) OVER(PARTITION BY mid.[statement], equality_columns) AS [similar_missing_indexes_for_table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, +CONVERT(decimal(18,2), migs.avg_total_user_cost) AS [avg_total_user_cost], migs.avg_user_impact +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Getting missing index information for all of the databases on the instance is very useful +-- Look at last user seek time, number of user seeks to help determine source and importance +-- Also look at avg_user_impact and avg_total_user_cost to help determine importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + +-- SQL Server Index Design Guide +-- https://bit.ly/2qtZr4N + + + +-- Get VLF Counts for all databases on the instance (Query 37) (VLF Counts) +SELECT [name] AS [Database Name], [VLF Count] +FROM sys.databases AS db WITH (NOLOCK) +CROSS APPLY (SELECT file_id, COUNT(*) AS [VLF Count] + FROM sys.dm_db_log_info(db.database_id) + GROUP BY file_id) AS li +ORDER BY [VLF Count] DESC OPTION (RECOMPILE); +------ + +-- High VLF counts can affect write performance to the log file +-- and they can make full database restores and crash recovery take much longer +-- Try to keep your VLF counts under 200 in most cases (depending on log file size) + +-- Important change to VLF creation algorithm in SQL Server 2014 +-- https://bit.ly/2Hsjbg4 + +-- SQL Server Transaction Log Architecture and Management Guide +-- https://bit.ly/2JjmQRZ + + + +-- Get CPU utilization by database (Query 38) (CPU Usage by Database) +WITH DB_CPU_Stats +AS +(SELECT pa.DatabaseID, DB_Name(pa.DatabaseID) AS [Database Name], SUM(qs.total_worker_time/1000) AS [CPU_Time_Ms] + FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) + CROSS APPLY (SELECT CONVERT(int, value) AS [DatabaseID] + FROM sys.dm_exec_plan_attributes(qs.plan_handle) + WHERE attribute = N'dbid') AS pa + GROUP BY DatabaseID) +SELECT ROW_NUMBER() OVER(ORDER BY [CPU_Time_Ms] DESC) AS [CPU Rank], + [Database Name], [CPU_Time_Ms] AS [CPU Time (ms)], + CAST([CPU_Time_Ms] * 1.0 / SUM([CPU_Time_Ms]) OVER() * 100.0 AS DECIMAL(5, 2)) AS [CPU Percent] +FROM DB_CPU_Stats +WHERE DatabaseID <> 32767 -- ResourceDB +ORDER BY [CPU Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most CPU resources on the instance +-- Note: This only reflects CPU usage from the currently cached query plans + + +-- Get I/O utilization by database (Query 39) (IO Usage By Database) +WITH Aggregate_IO_Statistics +AS (SELECT DB_NAME(database_id) AS [Database Name], + CAST(SUM(num_of_bytes_read + num_of_bytes_written) / 1048576 AS DECIMAL(12, 2)) AS [ioTotalMB], + CAST(SUM(num_of_bytes_read ) / 1048576 AS DECIMAL(12, 2)) AS [ioReadMB], + CAST(SUM(num_of_bytes_written) / 1048576 AS DECIMAL(12, 2)) AS [ioWriteMB] + FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS [DM_IO_STATS] + GROUP BY database_id) +SELECT ROW_NUMBER() OVER (ORDER BY ioTotalMB DESC) AS [I/O Rank], + [Database Name], ioTotalMB AS [Total I/O (MB)], + CAST(ioTotalMB / SUM(ioTotalMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Total I/O %], + ioReadMB AS [Read I/O (MB)], + CAST(ioReadMB / SUM(ioReadMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Read I/O %], + ioWriteMB AS [Write I/O (MB)], + CAST(ioWriteMB / SUM(ioWriteMB) OVER () * 100.0 AS DECIMAL(5, 2)) AS [Write I/O %] +FROM Aggregate_IO_Statistics +ORDER BY [I/O Rank] OPTION (RECOMPILE); +------ + +-- Helps determine which database is using the most I/O resources on the instance +-- These numbers are cumulative since the last service restart +-- They include all I/O activity, not just the nominal I/O workload + + +-- Get total buffer usage by database for current instance (Query 40) (Total Buffer Usage by Database) +-- This make take some time to run on a busy instance +WITH AggregateBufferPoolUsage +AS +(SELECT DB_NAME(database_id) AS [Database Name], +CAST(COUNT(*) * 8/1024.0 AS DECIMAL (10,2)) AS [CachedSize] +FROM sys.dm_os_buffer_descriptors WITH (NOLOCK) +WHERE database_id <> 32767 -- ResourceDB +GROUP BY DB_NAME(database_id)) +SELECT ROW_NUMBER() OVER(ORDER BY CachedSize DESC) AS [Buffer Pool Rank], [Database Name], CachedSize AS [Cached Size (MB)], + CAST(CachedSize / SUM(CachedSize) OVER() * 100.0 AS DECIMAL(5,2)) AS [Buffer Pool Percent] +FROM AggregateBufferPoolUsage +ORDER BY [Buffer Pool Rank] OPTION (RECOMPILE); +------ + +-- Tells you how much memory (in the buffer pool) +-- is being used by each database on the instance + + +-- Get tempdb version store space usage by database (Query 41) (Version Store Space Usage) +SELECT DB_NAME(database_id) AS [Database Name], + reserved_page_count AS [Version Store Reserved Page Count], + reserved_space_kb/1024 AS [Version Store Reserved Space (MB)] +FROM sys.dm_tran_version_store_space_usage WITH (NOLOCK) +ORDER BY reserved_space_kb/1024 DESC OPTION (RECOMPILE); +------ + +-- sys.dm_tran_version_store_space_usage (Transact-SQL) +-- https://bit.ly/2vh3Bmk + + + + +-- Clear Wait Stats with this command +-- DBCC SQLPERF('sys.dm_os_wait_stats', CLEAR); + +-- Isolate top waits for server instance since last restart or wait statistics clear (Query 42) (Top Waits) +WITH [Waits] +AS (SELECT wait_type, wait_time_ms/ 1000.0 AS [WaitS], + (wait_time_ms - signal_wait_time_ms) / 1000.0 AS [ResourceS], + signal_wait_time_ms / 1000.0 AS [SignalS], + waiting_tasks_count AS [WaitCount], + 100.0 * wait_time_ms / SUM (wait_time_ms) OVER() AS [Percentage], + ROW_NUMBER() OVER(ORDER BY wait_time_ms DESC) AS [RowNum] + FROM sys.dm_os_wait_stats WITH (NOLOCK) + WHERE [wait_type] NOT IN ( + N'BROKER_EVENTHANDLER', N'BROKER_RECEIVE_WAITFOR', N'BROKER_TASK_STOP', + N'BROKER_TO_FLUSH', N'BROKER_TRANSMITTER', N'CHECKPOINT_QUEUE', + N'CHKPT', N'CLR_AUTO_EVENT', N'CLR_MANUAL_EVENT', N'CLR_SEMAPHORE', N'CXCONSUMER', + N'DBMIRROR_DBM_EVENT', N'DBMIRROR_EVENTS_QUEUE', N'DBMIRROR_WORKER_QUEUE', + N'DBMIRRORING_CMD', N'DIRTY_PAGE_POLL', N'DISPATCHER_QUEUE_SEMAPHORE', + N'EXECSYNC', N'FSAGENT', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'FT_IFTSHC_MUTEX', + N'HADR_CLUSAPI_CALL', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'HADR_LOGCAPTURE_WAIT', + N'HADR_NOTIFICATION_DEQUEUE', N'HADR_TIMER_TASK', N'HADR_WORK_QUEUE', + N'KSOURCE_WAKEUP', N'LAZYWRITER_SLEEP', N'LOGMGR_QUEUE', + N'MEMORY_ALLOCATION_EXT', N'ONDEMAND_TASK_QUEUE', + N'PARALLEL_REDO_DRAIN_WORKER', N'PARALLEL_REDO_LOG_CACHE', N'PARALLEL_REDO_TRAN_LIST', + N'PARALLEL_REDO_WORKER_SYNC', N'PARALLEL_REDO_WORKER_WAIT_WORK', + N'PREEMPTIVE_HADR_LEASE_MECHANISM', N'PREEMPTIVE_SP_SERVER_DIAGNOSTICS', + N'PREEMPTIVE_OS_LIBRARYOPS', N'PREEMPTIVE_OS_COMOPS', N'PREEMPTIVE_OS_CRYPTOPS', + N'PREEMPTIVE_OS_PIPEOPS', N'PREEMPTIVE_OS_AUTHENTICATIONOPS', + N'PREEMPTIVE_OS_GENERICOPS', N'PREEMPTIVE_OS_VERIFYTRUST', + N'PREEMPTIVE_OS_FILEOPS', N'PREEMPTIVE_OS_DEVICEOPS', N'PREEMPTIVE_OS_QUERYREGISTRY', + N'PREEMPTIVE_OS_WRITEFILE', + N'PREEMPTIVE_XE_CALLBACKEXECUTE', N'PREEMPTIVE_XE_DISPATCHER', + N'PREEMPTIVE_XE_GETTARGETSTATE', N'PREEMPTIVE_XE_SESSIONCOMMIT', + N'PREEMPTIVE_XE_TARGETINIT', N'PREEMPTIVE_XE_TARGETFINALIZE', + N'PWAIT_ALL_COMPONENTS_INITIALIZED', N'PWAIT_DIRECTLOGCONSUMER_GETNEXT', + N'PWAIT_EXTENSIBILITY_CLEANUP_TASK', + N'QDS_PERSIST_TASK_MAIN_LOOP_SLEEP', N'QDS_ASYNC_QUEUE', + N'QDS_CLEANUP_STALE_QUERIES_TASK_MAIN_LOOP_SLEEP', N'REQUEST_FOR_DEADLOCK_SEARCH', + N'RESOURCE_QUEUE', N'SERVER_IDLE_CHECK', N'SLEEP_BPOOL_FLUSH', N'SLEEP_DBSTARTUP', + N'SLEEP_DCOMSTARTUP', N'SLEEP_MASTERDBREADY', N'SLEEP_MASTERMDREADY', + N'SLEEP_MASTERUPGRADED', N'SLEEP_MSDBSTARTUP', N'SLEEP_SYSTEMTASK', N'SLEEP_TASK', + N'SLEEP_TEMPDBSTARTUP', N'SNI_HTTP_ACCEPT', N'SOS_WORK_DISPATCHER', + N'SP_SERVER_DIAGNOSTICS_SLEEP', + N'SQLTRACE_BUFFER_FLUSH', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'SQLTRACE_WAIT_ENTRIES', + N'STARTUP_DEPENDENCY_MANAGER', + N'WAIT_FOR_RESULTS', N'WAITFOR', N'WAITFOR_TASKSHUTDOWN', N'WAIT_XTP_HOST_WAIT', + N'WAIT_XTP_OFFLINE_CKPT_NEW_LOG', N'WAIT_XTP_CKPT_CLOSE', N'WAIT_XTP_RECOVERY', + N'XE_BUFFERMGR_ALLPROCESSED_EVENT', N'XE_DISPATCHER_JOIN', + N'XE_DISPATCHER_WAIT', N'XE_LIVE_TARGET_TVF', N'XE_TIMER_EVENT') + AND waiting_tasks_count > 0) +SELECT + MAX (W1.wait_type) AS [WaitType], + CAST (MAX (W1.Percentage) AS DECIMAL (5,2)) AS [Wait Percentage], + CAST ((MAX (W1.WaitS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgWait_Sec], + CAST ((MAX (W1.ResourceS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgRes_Sec], + CAST ((MAX (W1.SignalS) / MAX (W1.WaitCount)) AS DECIMAL (16,4)) AS [AvgSig_Sec], + CAST (MAX (W1.WaitS) AS DECIMAL (16,2)) AS [Wait_Sec], + CAST (MAX (W1.ResourceS) AS DECIMAL (16,2)) AS [Resource_Sec], + CAST (MAX (W1.SignalS) AS DECIMAL (16,2)) AS [Signal_Sec], + MAX (W1.WaitCount) AS [Wait Count], + CAST (N'https://www.sqlskills.com/help/waits/' + W1.wait_type AS XML) AS [Help/Info URL] +FROM Waits AS W1 +INNER JOIN Waits AS W2 +ON W2.RowNum <= W1.RowNum +GROUP BY W1.RowNum, W1.wait_type +HAVING SUM (W2.Percentage) - MAX (W1.Percentage) < 99 -- percentage threshold +OPTION (RECOMPILE); +------ + +-- Cumulative wait stats are not as useful on an idle instance that is not under load or performance pressure + +-- SQL Server Wait Types Library (Paul Randal) +-- https://bit.ly/2ePzYO2 + +-- The SQL Server Wait Type Repository +-- https://bit.ly/1afzfjC + +-- Wait statistics, or please tell me where it hurts +-- https://bit.ly/2wsQHQE + +-- SQL Server 2005 Performance Tuning using the Waits and Queues +-- https://bit.ly/1o2NFoF + +-- sys.dm_os_wait_stats (Transact-SQL) +-- https://bit.ly/2Hjq9Yl + + + +-- Get a count of SQL connections by IP address (Query 43) (Connection Counts by IP Address) +SELECT ec.client_net_address, es.[program_name], es.[host_name], es.login_name, +COUNT(ec.session_id) AS [connection count] +FROM sys.dm_exec_sessions AS es WITH (NOLOCK) +INNER JOIN sys.dm_exec_connections AS ec WITH (NOLOCK) +ON es.session_id = ec.session_id +GROUP BY ec.client_net_address, es.[program_name], es.[host_name], es.login_name +ORDER BY ec.client_net_address, es.[program_name] OPTION (RECOMPILE); +------ + +-- This helps you figure where your database load is coming from +-- and verifies connectivity from other machines + +-- Solving Connectivity errors to SQL Server +-- https://bit.ly/2EgzoD0 + + + +-- Get Average Task Counts (run multiple times) (Query 44) (Avg Task Counts) +SELECT AVG(current_tasks_count) AS [Avg Task Count], +AVG(work_queue_count) AS [Avg Work Queue Count], +AVG(runnable_tasks_count) AS [Avg Runnable Task Count], +AVG(pending_disk_io_count) AS [Avg Pending DiskIO Count] +FROM sys.dm_os_schedulers WITH (NOLOCK) +WHERE scheduler_id < 255 OPTION (RECOMPILE); +------ + +-- Sustained values above 10 suggest further investigation in that area +-- High Avg Task Counts are often caused by blocking/deadlocking or other resource contention + +-- Sustained values above 1 suggest further investigation in that area +-- High Avg Runnable Task Counts are a good sign of CPU pressure +-- High Avg Pending DiskIO Counts are a sign of disk pressure + +-- How to Do Some Very Basic SQL Server Monitoring +-- https://bit.ly/2q3Btgt + + + +-- Detect blocking (run multiple times) (Query 45) (Detect Blocking) +SELECT t1.resource_type AS [lock type], DB_NAME(resource_database_id) AS [database], +t1.resource_associated_entity_id AS [blk object],t1.request_mode AS [lock req], -- lock requested +t1.request_session_id AS [waiter sid], t2.wait_duration_ms AS [wait time], -- spid of waiter +(SELECT [text] FROM sys.dm_exec_requests AS r WITH (NOLOCK) -- get sql for waiter +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) +WHERE r.session_id = t1.request_session_id) AS [waiter_batch], +(SELECT SUBSTRING(qt.[text],r.statement_start_offset/2, + (CASE WHEN r.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE r.statement_end_offset END - r.statement_start_offset)/2) +FROM sys.dm_exec_requests AS r WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(r.[sql_handle]) AS qt +WHERE r.session_id = t1.request_session_id) AS [waiter_stmt], -- statement blocked +t2.blocking_session_id AS [blocker sid], -- spid of blocker +(SELECT [text] FROM sys.sysprocesses AS p -- get sql for blocker +CROSS APPLY sys.dm_exec_sql_text(p.[sql_handle]) +WHERE p.spid = t2.blocking_session_id) AS [blocker_batch] +FROM sys.dm_tran_locks AS t1 WITH (NOLOCK) +INNER JOIN sys.dm_os_waiting_tasks AS t2 WITH (NOLOCK) +ON t1.lock_owner_address = t2.resource_address OPTION (RECOMPILE); +------ + +-- Helps troubleshoot blocking and deadlocking issues +-- The results will change from second to second on a busy system +-- You should run this query multiple times when you see signs of blocking + + + +-- Get CPU Utilization History for last 256 minutes (in one minute intervals) (Query 46) (CPU Utilization History) +DECLARE @ts_now bigint = (SELECT cpu_ticks/(cpu_ticks/ms_ticks) FROM sys.dm_os_sys_info WITH (NOLOCK)); + +SELECT TOP(256) SQLProcessUtilization AS [SQL Server Process CPU Utilization], + SystemIdle AS [System Idle Process], + 100 - SystemIdle - SQLProcessUtilization AS [Other Process CPU Utilization], + DATEADD(ms, -1 * (@ts_now - [timestamp]), GETDATE()) AS [Event Time] +FROM (SELECT record.value('(./Record/@id)[1]', 'int') AS record_id, + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/SystemIdle)[1]', 'int') + AS [SystemIdle], + record.value('(./Record/SchedulerMonitorEvent/SystemHealth/ProcessUtilization)[1]', 'int') + AS [SQLProcessUtilization], [timestamp] + FROM (SELECT [timestamp], CONVERT(xml, record) AS [record] + FROM sys.dm_os_ring_buffers WITH (NOLOCK) + WHERE ring_buffer_type = N'RING_BUFFER_SCHEDULER_MONITOR' + AND record LIKE N'%%') AS x) AS y +ORDER BY record_id DESC OPTION (RECOMPILE); +------ + +-- Look at the trend over the entire period +-- Also look at high sustained 'Other Process' CPU Utilization values +-- Note: This query sometimes gives inaccurate results (negative values) +-- on high core count (> 64 cores) systems + + +-- Get top total worker time queries for entire instance (Query 47) (Top Worker Time Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_worker_time AS [Total Worker Time], qs.min_worker_time AS [Min Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.max_worker_time AS [Max Worker Time], +qs.min_elapsed_time AS [Min Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.max_elapsed_time AS [Max Elapsed Time], +qs.min_logical_reads AS [Min Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.max_logical_reads AS [Max Logical Reads], +qs.execution_count AS [Execution Count], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + + +-- Helps you find the most expensive queries from a CPU perspective across the entire instance +-- Can also help track down parameter sniffing issues + + + +-- Page Life Expectancy (PLE) value for each NUMA node in current instance (Query 48) (PLE by NUMA Node) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], instance_name, cntr_value AS [Page Life Expectancy] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Buffer Node%' -- Handles named instances +AND counter_name = N'Page life expectancy' OPTION (RECOMPILE); +------ + +-- PLE is a good measurement of internal memory pressure +-- Higher PLE is better. Watch the trend over time, not the absolute value +-- This will only return one row for non-NUMA systems + +-- Page Life Expectancy isnt what you think +-- https://bit.ly/2EgynLa + + +-- Memory Grants Pending value for current instance (Query 49) (Memory Grants Pending) +SELECT @@SERVERNAME AS [Server Name], RTRIM([object_name]) AS [Object Name], cntr_value AS [Memory Grants Pending] +FROM sys.dm_os_performance_counters WITH (NOLOCK) +WHERE [object_name] LIKE N'%Memory Manager%' -- Handles named instances +AND counter_name = N'Memory Grants Pending' OPTION (RECOMPILE); +------ + +-- Run multiple times, and run periodically if you suspect you are under memory pressure +-- Memory Grants Pending above zero for a sustained period is a very strong indicator of internal memory pressure + + +-- Memory Clerk Usage for instance (Query 50) (Memory Clerk Usage) +-- Look for high value for CACHESTORE_SQLCP (Ad-hoc query plans) +SELECT TOP(10) mc.[type] AS [Memory Clerk Type], + CAST((SUM(mc.pages_kb)/1024.0) AS DECIMAL (15,2)) AS [Memory Usage (MB)] +FROM sys.dm_os_memory_clerks AS mc WITH (NOLOCK) +GROUP BY mc.[type] +ORDER BY SUM(mc.pages_kb) DESC OPTION (RECOMPILE); +------ + +-- MEMORYCLERK_SQLBUFFERPOOL was new for SQL Server 2012. It should be your highest consumer of memory + +-- CACHESTORE_SQLCP SQL Plans +-- These are cached SQL statements or batches that aren't in stored procedures, functions and triggers +-- Watch out for high values for CACHESTORE_SQLCP +-- Enabling 'optimize for ad hoc workloads' at the instance level can help reduce this +-- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this + +-- CACHESTORE_OBJCP Object Plans +-- These are compiled plans for stored procedures, functions and triggers + +-- sys.dm_os_memory_clerks (Transact-SQL) +-- https://bit.ly/2H31xDR + + + +-- Find single-use, ad-hoc and prepared queries that are bloating the plan cache (Query 51) (Ad hoc Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], t.[text] AS [Query Text], +cp.objtype AS [Object Type], cp.cacheobjtype AS [Cache Object Type], +cp.size_in_bytes/1024 AS [Plan Size in KB] +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +WHERE cp.cacheobjtype = N'Compiled Plan' +AND cp.objtype IN (N'Adhoc', N'Prepared') +AND cp.usecounts = 1 +ORDER BY cp.size_in_bytes DESC, DB_NAME(t.[dbid]) OPTION (RECOMPILE); +------ + +-- Gives you the text, type and size of single-use ad-hoc and prepared queries that waste space in the plan cache +-- Enabling 'optimize for ad hoc workloads' for the instance can help (SQL Server 2008 and above only) +-- Running DBCC FREESYSTEMCACHE ('SQL Plans') periodically may be required to better control this +-- Enabling forced parameterization for the database can help, but test first! + +-- Plan cache, adhoc workloads and clearing the single-use plan cache bloat +-- https://bit.ly/2EfYOkl + + +-- Get top total logical reads queries for entire instance (Query 52) (Top Logical Reads Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_logical_reads AS [Total Logical Reads], +qs.min_logical_reads AS [Min Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.max_logical_reads AS [Max Logical Reads], +qs.min_worker_time AS [Min Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.max_worker_time AS [Max Worker Time], +qs.min_elapsed_time AS [Min Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.max_elapsed_time AS [Max Elapsed Time], +qs.execution_count AS [Execution Count], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + + +-- Helps you find the most expensive queries from a memory perspective across the entire instance +-- Can also help track down parameter sniffing issues + + +-- Get top average elapsed time queries for entire instance (Query 53) (Top Avg Elapsed Time Queries) +SELECT TOP(50) DB_NAME(t.[dbid]) AS [Database Name], +REPLACE(REPLACE(LEFT(t.[text], 255), CHAR(10),''), CHAR(13),'') AS [Short Query Text], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.min_elapsed_time, qs.max_elapsed_time, qs.last_elapsed_time, +qs.execution_count AS [Execution Count], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.total_physical_reads/qs.execution_count AS [Avg Physical Reads], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +ORDER BY qs.total_elapsed_time/qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Helps you find the highest average elapsed time queries across the entire instance +-- Can also help track down parameter sniffing issues + + +-- Look at UDF execution statistics (Query 54) (UDF Stats by DB) +SELECT TOP (25) DB_NAME(database_id) AS [Database Name], + OBJECT_NAME(object_id, database_id) AS [Function Name], + total_worker_time, execution_count, total_elapsed_time, + total_elapsed_time/execution_count AS [avg_elapsed_time], + last_elapsed_time, last_execution_time, cached_time, [type_desc] +FROM sys.dm_exec_function_stats WITH (NOLOCK) +ORDER BY total_worker_time DESC OPTION (RECOMPILE); +------ + +-- sys.dm_exec_function_stats (Transact-SQL) +-- https://bit.ly/2q1Q6BM + +-- Showplan Enhancements for UDFs +-- https://bit.ly/2LVqiQ1 + + +-- Database specific queries ***************************************************************** + +-- **** Please switch to a user database that you are interested in! ***** +--USE YourDatabaseName; -- make sure to change to an actual database on your instance, not the master system database +--GO + +-- Individual File Sizes and space available for current database (Query 55) (File Sizes and Space) +SELECT f.name AS [File Name] , f.physical_name AS [Physical Name], +CAST((f.size/128.0) AS DECIMAL(15,2)) AS [Total Size in MB], +CAST(f.size/128.0 - CAST(FILEPROPERTY(f.name, 'SpaceUsed') AS int)/128.0 AS DECIMAL(15,2)) +AS [Available Space In MB], f.[file_id], fg.name AS [Filegroup Name], +f.is_percent_growth, f.growth, fg.is_default, fg.is_read_only, +fg.is_autogrow_all_files +FROM sys.database_files AS f WITH (NOLOCK) +LEFT OUTER JOIN sys.filegroups AS fg WITH (NOLOCK) +ON f.data_space_id = fg.data_space_id +ORDER BY f.[file_id] OPTION (RECOMPILE); +------ + +-- Look at how large and how full the files are and where they are located +-- Make sure the transaction log is not full!! + +-- is_autogrow_all_files was new for SQL Server 2016. Equivalent to TF 1117 for user databases + +-- SQL Server 2016: Changes in default behavior for autogrow and allocations for tempdb and user databases +-- https://bit.ly/2evRZSR + + +-- Log space usage for current database (Query 56) (Log Space Usage) +SELECT DB_NAME(lsu.database_id) AS [Database Name], db.recovery_model_desc AS [Recovery Model], + CAST(lsu.total_log_size_in_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Total Log Space (MB)], + CAST(lsu.used_log_space_in_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Used Log Space (MB)], + CAST(lsu.used_log_space_in_percent AS DECIMAL(10, 2)) AS [Used Log Space %], + CAST(lsu.log_space_in_bytes_since_last_backup/1048576.0 AS DECIMAL(10, 2)) AS [Used Log Space Since Last Backup (MB)], + db.log_reuse_wait_desc +FROM sys.dm_db_log_space_usage AS lsu WITH (NOLOCK) +INNER JOIN sys.databases AS db WITH (NOLOCK) +ON lsu.database_id = db.database_id +OPTION (RECOMPILE); +------ + +-- Look at log file size and usage, along with the log reuse wait description for the current database + +-- sys.dm_db_log_space_usage (Transact-SQL) +-- https://bit.ly/2H4MQw9 + + +-- Status of last VLF for current database (Query 57) (Last VLF Status) +SELECT TOP(1) DB_NAME(li.database_id) AS [Database Name], li.[file_id], + li.vlf_size_mb, li.vlf_sequence_number, li.vlf_active, li.vlf_status +FROM sys.dm_db_log_info(DB_ID()) AS li +ORDER BY vlf_sequence_number DESC OPTION (RECOMPILE); +------ + +-- Determine whether you will be able to shrink the transaction log file + +-- vlf_status Values +-- 0 is inactive +-- 1 is initialized but unused +-- 2 is active + +-- sys.dm_db_log_info (Transact-SQL) +-- https://bit.ly/2EQUU1v + + + +-- Get database scoped configuration values for current database (Query 58) (Database-scoped Configurations) +SELECT configuration_id, name, [value] AS [value_for_primary], value_for_secondary +FROM sys.database_scoped_configurations WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- This lets you see the value of these new properties for the current database + +-- Clear plan cache for current database +-- ALTER DATABASE SCOPED CONFIGURATION CLEAR PROCEDURE_CACHE; + +-- ALTER DATABASE SCOPED CONFIGURATION (Transact-SQL) +-- https://bit.ly/2sOH7nb + + +-- I/O Statistics by file for the current database (Query 59) (IO Stats By File) +SELECT DB_NAME(DB_ID()) AS [Database Name], df.name AS [Logical Name], vfs.[file_id], df.type_desc, +df.physical_name AS [Physical Name], CAST(vfs.size_on_disk_bytes/1048576.0 AS DECIMAL(10, 2)) AS [Size on Disk (MB)], +vfs.num_of_reads, vfs.num_of_writes, vfs.io_stall_read_ms, vfs.io_stall_write_ms, +CAST(100. * vfs.io_stall_read_ms/(vfs.io_stall_read_ms + vfs.io_stall_write_ms) AS DECIMAL(10,1)) AS [IO Stall Reads Pct], +CAST(100. * vfs.io_stall_write_ms/(vfs.io_stall_write_ms + vfs.io_stall_read_ms) AS DECIMAL(10,1)) AS [IO Stall Writes Pct], +(vfs.num_of_reads + vfs.num_of_writes) AS [Writes + Reads], +CAST(vfs.num_of_bytes_read/1048576.0 AS DECIMAL(10, 2)) AS [MB Read], +CAST(vfs.num_of_bytes_written/1048576.0 AS DECIMAL(10, 2)) AS [MB Written], +CAST(100. * vfs.num_of_reads/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Reads Pct], +CAST(100. * vfs.num_of_writes/(vfs.num_of_reads + vfs.num_of_writes) AS DECIMAL(10,1)) AS [# Write Pct], +CAST(100. * vfs.num_of_bytes_read/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Read Bytes Pct], +CAST(100. * vfs.num_of_bytes_written/(vfs.num_of_bytes_read + vfs.num_of_bytes_written) AS DECIMAL(10,1)) AS [Written Bytes Pct] +FROM sys.dm_io_virtual_file_stats(DB_ID(), NULL) AS vfs +INNER JOIN sys.database_files AS df WITH (NOLOCK) +ON vfs.[file_id]= df.[file_id] OPTION (RECOMPILE); +------ + +-- This helps you characterize your workload better from an I/O perspective for this database +-- It helps you determine whether you has an OLTP or DW/DSS type of workload + + + +-- Get most frequently executed queries for this database (Query 60) (Query Execution Counts) +SELECT TOP(50) LEFT(t.[text], 50) AS [Short Query Text], qs.execution_count AS [Execution Count], +qs.total_logical_reads AS [Total Logical Reads], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +qs.total_worker_time AS [Total Worker Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.total_elapsed_time AS [Total Elapsed Time], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +qs.creation_time AS [Creation Time] +--,t.[text] AS [Complete Query Text], qp.query_plan AS [Query Plan] -- uncomment out these columns if not copying results to Excel +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(plan_handle) AS t +CROSS APPLY sys.dm_exec_query_plan(plan_handle) AS qp +WHERE t.dbid = DB_ID() +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + + +-- Queries 61 through 66 are the "Bad Man List" for stored procedures + +-- Top Cached SPs By Execution Count (Query 61) (SP Execution Counts) +SELECT TOP(100) p.name AS [SP Name], qs.execution_count AS [Execution Count], +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time/qs.execution_count AS [Avg Elapsed Time], +qs.total_worker_time/qs.execution_count AS [Avg Worker Time], +qs.total_logical_reads/qs.execution_count AS [Avg Logical Reads], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.execution_count DESC OPTION (RECOMPILE); +------ + +-- Tells you which cached stored procedures are called the most often +-- This helps you characterize and baseline your workload + + +-- Top Cached SPs By Avg Elapsed Time (Query 62) (SP Avg Elapsed Time) +SELECT TOP(25) p.name AS [SP Name], qs.min_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +qs.max_elapsed_time, qs.last_elapsed_time, qs.total_elapsed_time, qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], +qs.total_worker_time AS [TotalWorkerTime], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY avg_elapsed_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find high average elapsed time cached stored procedures that +-- may be easy to optimize with standard query tuning techniques + + + +-- Top Cached SPs By Total Worker time. Worker time relates to CPU cost (Query 63) (SP Worker Time) +SELECT TOP(25) p.name AS [SP Name], qs.total_worker_time AS [TotalWorkerTime], +qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a CPU perspective +-- You should look at this if you see signs of CPU pressure + + +-- Top Cached SPs By Total Logical Reads. Logical reads relate to memory pressure (Query 64) (SP Logical Reads) +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_reads AS [TotalLogicalReads], +qs.total_logical_reads/qs.execution_count AS [AvgLogicalReads],qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a memory perspective +-- You should look at this if you see signs of memory pressure + + +-- Top Cached SPs By Total Physical Reads. Physical reads relate to disk read I/O pressure (Query 65) (SP Physical Reads) +SELECT TOP(25) p.name AS [SP Name],qs.total_physical_reads AS [TotalPhysicalReads], +qs.total_physical_reads/qs.execution_count AS [AvgPhysicalReads], qs.execution_count, +qs.total_logical_reads,qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND qs.total_physical_reads > 0 +ORDER BY qs.total_physical_reads DESC, qs.total_logical_reads DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a read I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + + +-- Top Cached SPs By Total Logical Writes (Query 66) (SP Logical Writes) +-- Logical writes relate to both memory and disk I/O pressure +SELECT TOP(25) p.name AS [SP Name], qs.total_logical_writes AS [TotalLogicalWrites], +qs.total_logical_writes/qs.execution_count AS [AvgLogicalWrites], qs.execution_count, +ISNULL(qs.execution_count/DATEDIFF(Minute, qs.cached_time, GETDATE()), 0) AS [Calls/Minute], +qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count AS [avg_elapsed_time], +CASE WHEN CONVERT(nvarchar(max), qp.query_plan) LIKE N'%%' THEN 1 ELSE 0 END AS [Has Missing Index], +FORMAT(qs.last_execution_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Last Execution Time], +FORMAT(qs.cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +-- ,qp.query_plan AS [Query Plan] -- Uncomment if you want the Query Plan +FROM sys.procedures AS p WITH (NOLOCK) +INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK) +ON p.[object_id] = qs.[object_id] +CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) AS qp +WHERE qs.database_id = DB_ID() +AND qs.total_logical_writes > 0 +AND DATEDIFF(Minute, qs.cached_time, GETDATE()) > 0 +ORDER BY qs.total_logical_writes DESC OPTION (RECOMPILE); +------ + +-- This helps you find the most expensive cached stored procedures from a write I/O perspective +-- You should look at this if you see signs of I/O pressure or of memory pressure + + +-- Lists the top statements by average input/output usage for the current database (Query 67) (Top IO Statements) +SELECT TOP(50) OBJECT_NAME(qt.objectid, dbid) AS [SP Name], +(qs.total_logical_reads + qs.total_logical_writes) /qs.execution_count AS [Avg IO], qs.execution_count AS [Execution Count], +SUBSTRING(qt.[text],qs.statement_start_offset/2, + (CASE + WHEN qs.statement_end_offset = -1 + THEN LEN(CONVERT(nvarchar(max), qt.[text])) * 2 + ELSE qs.statement_end_offset + END - qs.statement_start_offset)/2) AS [Query Text] +FROM sys.dm_exec_query_stats AS qs WITH (NOLOCK) +CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) AS qt +WHERE qt.[dbid] = DB_ID() +ORDER BY [Avg IO] DESC OPTION (RECOMPILE); +------ + +-- Helps you find the most expensive statements for I/O by SP + + + +-- Possible Bad NC Indexes (writes > reads) (Query 68) (Bad NC Indexes) +SELECT OBJECT_NAME(s.[object_id]) AS [Table Name], i.name AS [Index Name], i.index_id, +i.is_disabled, i.is_hypothetical, i.has_filter, i.fill_factor, +s.user_updates AS [Total Writes], s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], +s.user_updates - (s.user_seeks + s.user_scans + s.user_lookups) AS [Difference] +FROM sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON s.[object_id] = i.[object_id] +AND i.index_id = s.index_id +WHERE OBJECTPROPERTY(s.[object_id],'IsUserTable') = 1 +AND s.database_id = DB_ID() +AND s.user_updates > (s.user_seeks + s.user_scans + s.user_lookups) +AND i.index_id > 1 AND i.[type_desc] = N'NONCLUSTERED' +AND i.is_primary_key = 0 AND i.is_unique_constraint = 0 AND i.is_unique = 0 +ORDER BY [Difference] DESC, [Total Writes] DESC, [Total Reads] ASC OPTION (RECOMPILE); +------ + +-- Look for indexes with high numbers of writes and zero or very low numbers of reads +-- Consider your complete workload, and how long your instance has been running +-- Investigate further before dropping an index! + + +-- Missing Indexes for current database by Index Advantage (Query 69) (Missing Indexes) +SELECT DISTINCT CONVERT(decimal(18,2), user_seeks * avg_total_user_cost * (avg_user_impact * 0.01)) AS [index_advantage], +migs.last_user_seek, mid.[statement] AS [Database.Schema.Table], +mid.equality_columns, mid.inequality_columns, mid.included_columns, +migs.unique_compiles, migs.user_seeks, migs.avg_total_user_cost, migs.avg_user_impact, +OBJECT_NAME(mid.[object_id]) AS [Table Name], p.rows AS [Table Rows] +FROM sys.dm_db_missing_index_group_stats AS migs WITH (NOLOCK) +INNER JOIN sys.dm_db_missing_index_groups AS mig WITH (NOLOCK) +ON migs.group_handle = mig.index_group_handle +INNER JOIN sys.dm_db_missing_index_details AS mid WITH (NOLOCK) +ON mig.index_handle = mid.index_handle +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON p.[object_id] = mid.[object_id] +WHERE mid.database_id = DB_ID() +AND p.index_id < 2 +ORDER BY index_advantage DESC OPTION (RECOMPILE); +------ + +-- Look at index advantage, last user seek time, number of user seeks to help determine source and importance +-- SQL Server is overly eager to add included columns, so beware +-- Do not just blindly add indexes that show up from this query!!! + + +-- Find missing index warnings for cached plans in the current database (Query 70) (Missing Index Warnings) +-- Note: This query could take some time on a busy instance +SELECT TOP(25) OBJECT_NAME(objectid) AS [ObjectName], + cp.objtype, cp.usecounts, cp.size_in_bytes, query_plan +FROM sys.dm_exec_cached_plans AS cp WITH (NOLOCK) +CROSS APPLY sys.dm_exec_query_plan(cp.plan_handle) AS qp +WHERE CAST(query_plan AS NVARCHAR(MAX)) LIKE N'%MissingIndex%' +AND dbid = DB_ID() +ORDER BY cp.usecounts DESC OPTION (RECOMPILE); +------ + +-- Helps you connect missing indexes to specific stored procedures or queries +-- This can help you decide whether to add them or not + + +-- Breaks down buffers used by current database by object (table, index) in the buffer cache (Query 71) (Buffer Usage) +-- Note: This query could take some time on a busy instance +SELECT OBJECT_NAME(p.[object_id]) AS [Object Name], p.index_id, +CAST(COUNT(*)/128.0 AS DECIMAL(10, 2)) AS [Buffer size(MB)], +COUNT(*) AS [BufferCount], p.[Rows] AS [Row Count], +p.data_compression_desc AS [Compression Type] +FROM sys.allocation_units AS a WITH (NOLOCK) +INNER JOIN sys.dm_os_buffer_descriptors AS b WITH (NOLOCK) +ON a.allocation_unit_id = b.allocation_unit_id +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON a.container_id = p.hobt_id +WHERE b.database_id = CONVERT(int, DB_ID()) +AND p.[object_id] > 100 +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'plan_%' +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'sys%' +AND OBJECT_NAME(p.[object_id]) NOT LIKE N'xml_index_nodes%' +GROUP BY p.[object_id], p.index_id, p.data_compression_desc, p.[Rows] +ORDER BY [BufferCount] DESC OPTION (RECOMPILE); +------ + +-- Tells you what tables and indexes are using the most memory in the buffer cache +-- It can help identify possible candidates for data compression + + +-- Get Table names, row counts, and compression status for clustered index or heap (Query 72) (Table Sizes) +SELECT SCHEMA_NAME(o.Schema_ID) AS [Schema Name], OBJECT_NAME(p.object_id) AS [ObjectName], +SUM(p.Rows) AS [RowCount], data_compression_desc AS [CompressionType] +FROM sys.partitions AS p WITH (NOLOCK) +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON p.object_id = o.object_id +WHERE index_id < 2 --ignore the partitions from the non-clustered index if any +AND OBJECT_NAME(p.object_id) NOT LIKE N'sys%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'spt_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'queue_%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filestream_tombstone%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'fulltext%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'ifts_comp_fragment%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'filetable_updates%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'xml_index_nodes%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'sqlagent_job%' +AND OBJECT_NAME(p.object_id) NOT LIKE N'plan_persist%' +GROUP BY SCHEMA_NAME(o.Schema_ID), p.object_id, data_compression_desc +ORDER BY SUM(p.Rows) DESC OPTION (RECOMPILE); +------ + +-- Gives you an idea of table sizes, and possible data compression opportunities + + + +-- Get some key table properties (Query 73) (Table Properties) +SELECT OBJECT_NAME(t.[object_id]) AS [ObjectName], p.[rows] AS [Table Rows], p.index_id, + p.data_compression_desc AS [Index Data Compression], + t.create_date, t.lock_on_bulk_load, t.is_replicated, t.has_replication_filter, + t.is_tracked_by_cdc, t.lock_escalation_desc, t.is_filetable, + t.is_memory_optimized, t.durability_desc, + t.temporal_type_desc, t.is_remote_data_archive_enabled, t.is_external -- new for SQL Server 2016 +FROM sys.tables AS t WITH (NOLOCK) +INNER JOIN sys.partitions AS p WITH (NOLOCK) +ON t.[object_id] = p.[object_id] +WHERE OBJECT_NAME(t.[object_id]) NOT LIKE N'sys%' +ORDER BY OBJECT_NAME(t.[object_id]), p.index_id OPTION (RECOMPILE); +------ + +-- Gives you some good information about your tables +-- is_memory_optimized and durability_desc were new in SQL Server 2014 +-- temporal_type_desc, is_remote_data_archive_enabled, is_external were new in SQL Server 2016 + +-- sys.tables (Transact-SQL) +-- https://bit.ly/2Gk7998 + + + +-- When were Statistics last updated on all indexes? (Query 74) (Statistics Update) +SELECT SCHEMA_NAME(o.Schema_ID) + N'.' + o.[NAME] AS [Object Name], o.[type_desc] AS [Object Type], + i.[name] AS [Index Name], STATS_DATE(i.[object_id], i.index_id) AS [Statistics Date], + s.auto_created, s.no_recompute, s.user_created, s.is_incremental, s.is_temporary, + st.row_count, st.used_page_count +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON o.[object_id] = i.[object_id] +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.stats_id +INNER JOIN sys.dm_db_partition_stats AS st WITH (NOLOCK) +ON o.[object_id] = st.[object_id] +AND i.[index_id] = st.[index_id] +WHERE o.[type] IN ('U', 'V') +AND st.row_count > 0 +ORDER BY STATS_DATE(i.[object_id], i.index_id) DESC OPTION (RECOMPILE); +------ + +-- Helps discover possible problems with out-of-date statistics +-- Also gives you an idea which indexes are the most active + +-- sys.stats (Transact-SQL) +-- https://bit.ly/2GyAxrn + +-- UPDATEs to Statistics (Erin Stellato) +-- https://bit.ly/2vhrYQy + + + + +-- Look at most frequently modified indexes and statistics (Query 75) (Volatile Indexes) +SELECT o.[name] AS [Object Name], o.[object_id], o.[type_desc], s.[name] AS [Statistics Name], + s.stats_id, s.no_recompute, s.auto_created, s.is_incremental, s.is_temporary, + sp.modification_counter, sp.[rows], sp.rows_sampled, sp.last_updated +FROM sys.objects AS o WITH (NOLOCK) +INNER JOIN sys.stats AS s WITH (NOLOCK) +ON s.object_id = o.object_id +CROSS APPLY sys.dm_db_stats_properties(s.object_id, s.stats_id) AS sp +WHERE o.[type_desc] NOT IN (N'SYSTEM_TABLE', N'INTERNAL_TABLE') +AND sp.modification_counter > 0 +ORDER BY sp.modification_counter DESC, o.name OPTION (RECOMPILE); +------ + +-- This helps you understand your workload and make better decisions about +-- things like data compression and adding new indexes to a table + + + +-- Get fragmentation info for all indexes above a certain size in the current database (Query 76) (Index Fragmentation) +-- Note: This query could take some time on a very large database +SELECT DB_NAME(ps.database_id) AS [Database Name], SCHEMA_NAME(o.[schema_id]) AS [Schema Name], +OBJECT_NAME(ps.OBJECT_ID) AS [Object Name], i.[name] AS [Index Name], ps.index_id, +ps.index_type_desc, ps.avg_fragmentation_in_percent, +ps.fragment_count, ps.page_count, i.fill_factor, i.has_filter, +i.filter_definition, i.[allow_page_locks] +FROM sys.dm_db_index_physical_stats(DB_ID(),NULL, NULL, NULL , N'LIMITED') AS ps +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ps.[object_id] = i.[object_id] +AND ps.index_id = i.index_id +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON i.[object_id] = o.[object_id] +WHERE ps.database_id = DB_ID() +AND ps.page_count > 2500 +ORDER BY ps.avg_fragmentation_in_percent DESC OPTION (RECOMPILE); +------ + +-- Helps determine whether you have framentation in your relational indexes +-- and how effective your index maintenance strategy is + + +--- Index Read/Write stats (all tables in current DB) ordered by Reads (Query 77) (Overall Index Usage - Reads) +SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.[name] AS [IndexName], i.index_id, + s.user_seeks, s.user_scans, s.user_lookups, + s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], + s.user_updates AS [Writes], + i.[type_desc] AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, + s.last_user_scan, s.last_user_lookup, s.last_user_seek +FROM sys.indexes AS i WITH (NOLOCK) +LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 +ORDER BY s.user_seeks + s.user_scans + s.user_lookups DESC OPTION (RECOMPILE); -- Order by reads +------ + +-- Show which indexes in the current database are most active for Reads + + +--- Index Read/Write stats (all tables in current DB) ordered by Writes (Query 78) (Overall Index Usage - Writes) +SELECT OBJECT_NAME(i.[object_id]) AS [ObjectName], i.[name] AS [IndexName], i.index_id, + s.user_updates AS [Writes], s.user_seeks + s.user_scans + s.user_lookups AS [Total Reads], + i.[type_desc] AS [Index Type], i.fill_factor AS [Fill Factor], i.has_filter, i.filter_definition, + s.last_system_update, s.last_user_update +FROM sys.indexes AS i WITH (NOLOCK) +LEFT OUTER JOIN sys.dm_db_index_usage_stats AS s WITH (NOLOCK) +ON i.[object_id] = s.[object_id] +AND i.index_id = s.index_id +AND s.database_id = DB_ID() +WHERE OBJECTPROPERTY(i.[object_id],'IsUserTable') = 1 +ORDER BY s.user_updates DESC OPTION (RECOMPILE); -- Order by writes +------ + +-- Show which indexes in the current database are most active for Writes + + +-- Get in-memory OLTP index usage (Query 79) (XTP Index Usage) +SELECT OBJECT_NAME(i.[object_id]) AS [Object Name], i.index_id, i.[name] AS [Index Name], + i.[type_desc], xis.scans_started, xis.scans_retries, + xis.rows_touched, xis.rows_returned +FROM sys.dm_db_xtp_index_stats AS xis WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON i.[object_id] = xis.[object_id] +AND i.index_id = xis.index_id +ORDER BY OBJECT_NAME(i.[object_id]) OPTION (RECOMPILE); +------ + +-- This gives you some index usage statistics for in-memory OLTP +-- Returns no data if you are not using in-memory OLTP + +-- Guidelines for Using Indexes on Memory-Optimized Tables +-- https://bit.ly/2GCP8lF + + + +-- Look at Columnstore index physical statistics (Query 80) (Columnstore Index Physical Stat) +SELECT OBJECT_NAME(ps.object_id) AS [TableName], + i.[name] AS [IndexName], ps.index_id, ps.partition_number, + ps.delta_store_hobt_id, ps.state_desc, ps.total_rows, ps.size_in_bytes, + ps.trim_reason_desc, ps.generation, ps.transition_to_compressed_state_desc, + ps.has_vertipaq_optimization, ps.deleted_rows, + 100 * (ISNULL(ps.deleted_rows, 0))/ps.total_rows AS [Fragmentation] +FROM sys.dm_db_column_store_row_group_physical_stats AS ps WITH (NOLOCK) +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ps.object_id = i.object_id +AND ps.index_id = i.index_id +ORDER BY ps.object_id, ps.partition_number, ps.row_group_id OPTION (RECOMPILE); +------ + +-- sys.dm_db_column_store_row_group_physical_stats (Transact-SQL) +-- https://bit.ly/2q276XQ + + + +-- Get lock waits for current database (Query 81) (Lock Waits) +SELECT o.name AS [table_name], i.name AS [index_name], ios.index_id, ios.partition_number, + SUM(ios.row_lock_wait_count) AS [total_row_lock_waits], + SUM(ios.row_lock_wait_in_ms) AS [total_row_lock_wait_in_ms], + SUM(ios.page_lock_wait_count) AS [total_page_lock_waits], + SUM(ios.page_lock_wait_in_ms) AS [total_page_lock_wait_in_ms], + SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) AS [total_lock_wait_in_ms] +FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) AS ios +INNER JOIN sys.objects AS o WITH (NOLOCK) +ON ios.[object_id] = o.[object_id] +INNER JOIN sys.indexes AS i WITH (NOLOCK) +ON ios.[object_id] = i.[object_id] +AND ios.index_id = i.index_id +WHERE o.[object_id] > 100 +GROUP BY o.name, i.name, ios.index_id, ios.partition_number +HAVING SUM(ios.page_lock_wait_in_ms)+ SUM(row_lock_wait_in_ms) > 0 +ORDER BY total_lock_wait_in_ms DESC OPTION (RECOMPILE); +------ + +-- This query is helpful for troubleshooting blocking and deadlocking issues + + + +-- Look at UDF execution statistics (Query 82) (UDF Statistics) +SELECT OBJECT_NAME(object_id) AS [Function Name], execution_count, + total_worker_time, total_logical_reads, total_physical_reads, total_elapsed_time, + total_elapsed_time/execution_count AS [avg_elapsed_time], + FORMAT(cached_time, 'yyyy-MM-dd HH:mm:ss', 'en-US') AS [Plan Cached Time] +FROM sys.dm_exec_function_stats WITH (NOLOCK) +WHERE database_id = DB_ID() +ORDER BY total_worker_time DESC OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Helps you investigate scalar UDF performance issues +-- Does not return information for table valued functions + +-- sys.dm_exec_function_stats (Transact-SQL) +-- https://bit.ly/2q1Q6BM + + +-- Determine which scalar UDFs are in-lineable (Query 83) (Inlineable UDFs) +SELECT OBJECT_NAME(m.object_id) AS [Function Name], is_inlineable, inline_type +FROM sys.sql_modules AS m WITH (NOLOCK) +LEFT OUTER JOIN sys.dm_exec_function_stats AS efs WITH (NOLOCK) +ON m.object_id = efs.object_id +WHERE efs.type_desc = N'SQL_SCALAR_FUNCTION' +OPTION (RECOMPILE); +------ + +-- Scalar UDF Inlining +-- https://bit.ly/2JU971M + +-- sys.sql_modules (Transact-SQL) +-- https://bit.ly/2Qt216S + + +-- Get QueryStore Options for this database (Query 84) (QueryStore Options) +SELECT actual_state_desc, desired_state_desc, [interval_length_minutes], + current_storage_size_mb, [max_storage_size_mb], + query_capture_mode_desc, size_based_cleanup_mode_desc +FROM sys.database_query_store_options WITH (NOLOCK) OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Requires that Query Store is enabled for this database + +-- Make sure that the actual_state_desc is the same as desired_state_desc +-- Make sure that the current_storage_size_mb is less than the max_storage_size_mb + +-- Tuning Workload Performance with Query Store +-- https://bit.ly/1kHSl7w + + +-- Get highest aggregate duration queries over last hour (Query 85) (High Aggregate Duration Queries) +WITH AggregatedDurationLastHour +AS +(SELECT q.query_id, SUM(rs.count_executions * rs.avg_duration) AS total_duration, + COUNT (DISTINCT p.plan_id) AS number_of_plans + FROM sys.query_store_query_text AS qt WITH (NOLOCK) + INNER JOIN sys.query_store_query AS q WITH (NOLOCK) + ON qt.query_text_id = q.query_text_id + INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) + ON q.query_id = p.query_id + INNER JOIN sys.query_store_runtime_stats AS rs WITH (NOLOCK) + ON rs.plan_id = p.plan_id + INNER JOIN sys.query_store_runtime_stats_interval AS rsi WITH (NOLOCK) + ON rsi.runtime_stats_interval_id = rs.runtime_stats_interval_id + WHERE rsi.start_time >= DATEADD(hour, -1, GETUTCDATE()) + AND rs.execution_type_desc = N'Regular' + GROUP BY q.query_id), OrderedDuration +AS +(SELECT query_id, total_duration, number_of_plans, + ROW_NUMBER () OVER (ORDER BY total_duration DESC, query_id) AS RN + FROM AggregatedDurationLastHour) +SELECT OBJECT_NAME(q.object_id) AS [Containing Object], qt.query_sql_text, +od.total_duration AS [Total Duration (microsecs)], +od.number_of_plans AS [Plan Count], +p.is_forced_plan, p.is_parallel_plan, p.is_trivial_plan, +q.query_parameterization_type_desc, p.[compatibility_level], +p.last_compile_start_time, +q.last_execution_time, +CONVERT(xml, p.query_plan) AS query_plan_xml +FROM OrderedDuration AS od +INNER JOIN sys.query_store_query AS q WITH (NOLOCK) +ON q.query_id = od.query_id +INNER JOIN sys.query_store_query_text AS qt WITH (NOLOCK) +ON q.query_text_id = qt.query_text_id +INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) +ON q.query_id = p.query_id +WHERE od.RN <= 50 +ORDER BY od.total_duration DESC OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Requires that QueryStore is enabled for this database + + + +-- Get highest aggregate CPU time queries over last hour (Query 86) (High Aggregate CPU Queries) +WITH AggregatedCPULastHour +AS +(SELECT q.query_id, SUM(rs.count_executions * rs.avg_cpu_time) AS total_cpu_time, + COUNT (DISTINCT p.plan_id) AS number_of_plans + FROM sys.query_store_query_text AS qt WITH (NOLOCK) + INNER JOIN sys.query_store_query AS q WITH (NOLOCK) + ON qt.query_text_id = q.query_text_id + INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) + ON q.query_id = p.query_id + INNER JOIN sys.query_store_runtime_stats AS rs WITH (NOLOCK) + ON rs.plan_id = p.plan_id + INNER JOIN sys.query_store_runtime_stats_interval AS rsi WITH (NOLOCK) + ON rsi.runtime_stats_interval_id = rs.runtime_stats_interval_id + WHERE rsi.start_time >= DATEADD(hour, -1, GETUTCDATE()) + AND rs.execution_type_desc = N'Regular' + GROUP BY q.query_id), OrderedDuration +AS +(SELECT query_id, total_cpu_time, number_of_plans, + ROW_NUMBER () OVER (ORDER BY total_cpu_time DESC, query_id) AS RN + FROM AggregatedCPULastHour) +SELECT OBJECT_NAME(q.object_id) AS [Containing Object], qt.query_sql_text, +od.total_cpu_time AS [Total CPU Time (microsecs)], +od.number_of_plans AS [Plan Count], +p.is_forced_plan, p.is_parallel_plan, p.is_trivial_plan, +q.query_parameterization_type_desc, p.[compatibility_level], +p.last_compile_start_time, +q.last_execution_time, +CONVERT(xml, p.query_plan) AS query_plan_xml +FROM OrderedDuration AS od +INNER JOIN sys.query_store_query AS q WITH (NOLOCK) +ON q.query_id = od.query_id +INNER JOIN sys.query_store_query_text AS qt WITH (NOLOCK) +ON q.query_text_id = qt.query_text_id +INNER JOIN sys.query_store_plan AS p WITH (NOLOCK) +ON q.query_id = p.query_id +WHERE od.RN <= 50 +ORDER BY od.total_cpu_time DESC OPTION (RECOMPILE); +------ + +-- New for SQL Server 2016 +-- Requires that QueryStore is enabled for this database + + +-- Get input buffer information for the current database (Query 87) (Input Buffer) +SELECT es.session_id, DB_NAME(es.database_id) AS [Database Name], + es.login_time, es.cpu_time, es.logical_reads, es.memory_usage, + es.[status], ib.event_info AS [Input Buffer] +FROM sys.dm_exec_sessions AS es WITH (NOLOCK) +CROSS APPLY sys.dm_exec_input_buffer(es.session_id, NULL) AS ib +WHERE es.database_id = DB_ID() +AND es.session_id > 50 +AND es.session_id <> @@SPID OPTION (RECOMPILE); +------ + +-- Gives you input buffer information from all non-system sessions for the current database +-- Replaces DBCC INPUTBUFFER + +-- New DMF for retrieving input buffer in SQL Server +-- https://bit.ly/2uHKMbz + +-- sys.dm_exec_input_buffer (Transact-SQL) +-- https://bit.ly/2J5Hf9q + + + +-- Get any resumable index rebuild operation information (Query 88) (Resumable Index Rebuild) +SELECT OBJECT_NAME(iro.object_id) AS [Object Name], iro.index_id, iro.name AS [Index Name], + iro.sql_text, iro.last_max_dop_used, iro.partition_number, iro.state_desc, iro.start_time, iro.percent_complete +FROM sys.index_resumable_operations AS iro WITH (NOLOCK) +OPTION (RECOMPILE); +------ + +-- index_resumable_operations (Transact-SQL) +-- https://bit.ly/2pYSWqq + + +-- Get database automatic tuning options (Query 89) (Automatic Tuning Options) +SELECT [name], desired_state_desc, actual_state_desc, reason_desc +FROM sys.database_automatic_tuning_options WITH (NOLOCK) +OPTION (RECOMPILE); +------ + +-- sys.database_automatic_tuning_options (Transact-SQL) +-- https://bit.ly/2FHhLkL + + + +-- Look at recent Full backups for the current database (Query 90) (Recent Full Backups) +SELECT TOP (30) bs.machine_name, bs.server_name, bs.database_name AS [Database Name], bs.recovery_model, +CONVERT (BIGINT, bs.backup_size / 1048576 ) AS [Uncompressed Backup Size (MB)], +CONVERT (BIGINT, bs.compressed_backup_size / 1048576 ) AS [Compressed Backup Size (MB)], +CONVERT (NUMERIC (20,2), (CONVERT (FLOAT, bs.backup_size) / +CONVERT (FLOAT, bs.compressed_backup_size))) AS [Compression Ratio], bs.has_backup_checksums, bs.is_copy_only, bs.encryptor_type, +DATEDIFF (SECOND, bs.backup_start_date, bs.backup_finish_date) AS [Backup Elapsed Time (sec)], +bs.backup_finish_date AS [Backup Finish Date], bmf.physical_device_name AS [Backup Location], bmf.physical_block_size +FROM msdb.dbo.backupset AS bs WITH (NOLOCK) +INNER JOIN msdb.dbo.backupmediafamily AS bmf WITH (NOLOCK) +ON bs.media_set_id = bmf.media_set_id +WHERE bs.database_name = DB_NAME(DB_ID()) +AND bs.[type] = 'D' -- Change to L if you want Log backups +ORDER BY bs.backup_finish_date DESC OPTION (RECOMPILE); +------ + +-- Are your backup sizes and times changing over time? +-- Are you using backup compression? +-- Are you using backup checksums? +-- Are you doing copy_only backups? +-- Are you doing encrypted backups? +-- Have you done any backup tuning with striped backups, or changing the parameters of the backup command? + +-- In SQL Server 2016, native SQL Server backup compression actually works +-- much better with databases that are using TDE than in previous versions +-- https://bit.ly/28Rpb2x + + +-- These five Pluralsight Courses go into more detail about how to run these queries and interpret the results + +-- SQL Server 2017: Diagnosing Performance Issues with DMVs +-- https://bit.ly/2FqCeti + +-- SQL Server 2017: Diagnosing Configuration Issues with DMVs +-- https://bit.ly/2MSUDUL + +-- SQL Server 2014 DMV Diagnostic Queries Part 1 +-- https://bit.ly/2plxCer + +-- SQL Server 2014 DMV Diagnostic Queries Part 2 +-- https://bit.ly/2IuJpzI + +-- SQL Server 2014 DMV Diagnostic Queries Part 3 +-- https://bit.ly/2FIlCPb + + + +-- Sign up for Microsoft Visual Studio Dev Essentials and get a free three month pass to Pluralsight + +-- Microsoft Visual Studio Dev Essentials +-- http://bit.ly/1q6xbDL + + +-- Sign up for Microsoft Azure Essentials and get lots of free Azure usage credits, MCP exam voucher, three month Pluralsight subscription + +-- Microsoft Azure Essentials +-- https://bit.ly/2JMWe8x + + +-- August 2017 blog series about upgrading and migrating to SQL Server 2016/2017 +-- https://bit.ly/2ftKVrX diff --git a/Scripts/SQLServer_Memory_Information.sql b/Scripts/SQLServer_Memory_Information.sql new file mode 100644 index 00000000..33c58250 --- /dev/null +++ b/Scripts/SQLServer_Memory_Information.sql @@ -0,0 +1,365 @@ +SET NOCOUNT ON; +SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; +SET LOCK_TIMEOUT 10000; + +DECLARE @ServiceName nvarchar(100) +SET @ServiceName = + CASE + WHEN @@SERVICENAME = 'MSSQLSERVER' THEN 'SQLServer:' + ELSE 'MSSQL$' + @@SERVICENAME + ':' + END + +DECLARE @Perf TABLE ( + object_name nvarchar(20), + counter_name nvarchar(128), + instance_name nvarchar(128), + cntr_value bigint, + formatted_value numeric(20, 2), + shortname nvarchar(20) +) +INSERT INTO @Perf (object_name, counter_name, instance_name, cntr_value, formatted_value, shortname) + SELECT + CASE + WHEN CHARINDEX('Memory Manager', object_name) > 0 THEN 'Memory Manager' + WHEN CHARINDEX('Buffer Manager', object_name) > 0 THEN 'Buffer Manager' + WHEN CHARINDEX('Plan Cache', object_name) > 0 THEN 'Plan Cache' + WHEN CHARINDEX('Buffer Node', object_name) > 0 THEN 'Buffer Node' -- 2008 + WHEN CHARINDEX('Memory Node', object_name) > 0 THEN 'Memory Node' -- 2012 + WHEN CHARINDEX('Cursor', object_name) > 0 THEN 'Cursor' + ELSE NULL + END AS object_name, + CAST(RTRIM(counter_name) AS nvarchar(100)) AS counter_name, + RTRIM(instance_name) AS instance_name, + cntr_value, + CAST(NULL AS decimal(20, 2)) AS formatted_value, + SUBSTRING(counter_name, 1, PATINDEX('% %', counter_name)) shortname + FROM sys.dm_os_performance_counters + WHERE (object_name LIKE @ServiceName + 'Buffer Node%' -- LIKE is faster than =. I have no idea why + OR object_name LIKE @ServiceName + 'Buffer Manager%' + OR object_name LIKE @ServiceName + 'Memory Node%' + OR object_name LIKE @ServiceName + 'Plan Cache%') + AND (counter_name LIKE '%pages %' + OR counter_name LIKE '%Node Memory (KB)%' + OR counter_name = 'Page life expectancy' + ) + OR (object_name = @ServiceName + 'Memory Manager' + AND counter_name IN ('Granted Workspace Memory (KB)', 'Maximum Workspace Memory (KB)', + 'Memory Grants Outstanding', 'Memory Grants Pending', + 'Target Server Memory (KB)', 'Total Server Memory (KB)', + 'Connection Memory (KB)', 'Lock Memory (KB)', + 'Optimizer Memory (KB)', 'SQL Cache Memory (KB)', + -- for 2012 + 'Free Memory (KB)', 'Reserved Server Memory (KB)', + 'Database Cache Memory (KB)', 'Stolen Server Memory (KB)') + ) + OR (object_name LIKE @ServiceName + 'Cursor Manager by Type%' + AND counter_name = 'Cursor memory usage' + AND instance_name = '_Total' + ) + +-- Add unit to 'Cursor memory usage' +UPDATE @Perf +SET counter_name = counter_name + ' (KB)' +WHERE counter_name = 'Cursor memory usage' + +-- Convert values from pages and KB to MB and rename counters accordingly +UPDATE @Perf +SET counter_name = REPLACE(REPLACE(REPLACE(counter_name, ' pages', ''), ' (KB)', ''), ' (MB)', ''), + formatted_value = + CASE + WHEN counter_name LIKE '%pages' THEN cntr_value / 128. + WHEN counter_name LIKE '%(KB)' THEN cntr_value / 1024. + ELSE cntr_value + END + +-- Delete some pre 2012 counters for 2012 in order to remove duplicates +DELETE P2008 + FROM @Perf P2008 + INNER JOIN @Perf P2012 + ON REPLACE(P2008.object_name, 'Buffer', 'Memory') = P2012.object_name + AND P2008.shortname = P2012.shortname +WHERE P2008.object_name IN ('Buffer Manager', 'Buffer Node') + +-- Update counter/object names so they look like in 2012 +UPDATE PC +SET object_name = REPLACE(object_name, 'Buffer', 'Memory'), + counter_name = ISNULL(M.NewName, counter_name) +FROM @Perf PC +LEFT JOIN (SELECT + 'Free' AS OldName, + 'Free Memory' AS NewName +UNION ALL +SELECT + 'Database', + 'Database Cache Memory' +UNION ALL +SELECT + 'Stolen', + 'Stolen Server Memory' +UNION ALL +SELECT + 'Reserved', + 'Reserved Server Memory' +UNION ALL +SELECT + 'Foreign', + 'Foreign Node Memory') M + ON M.OldName = PC.counter_name + AND NewName NOT IN (SELECT + counter_name + FROM @Perf + WHERE object_name = 'Memory Manager') +WHERE object_name IN ('Buffer Manager', 'Buffer Node') + + +-- Build Memory Tree +DECLARE @MemTree TABLE ( + Id int, + ParentId int, + counter_name nvarchar(128), + formatted_value numeric(20, 2), + shortname nvarchar(20) +) + +-- Level 5 +INSERT @MemTree (Id, ParentId, counter_name, formatted_value, shortname) + SELECT + Id = 1226, + ParentId = 1225, + instance_name AS counter_name, + formatted_value, + shortname + FROM @Perf + WHERE object_name = 'Plan Cache' + AND counter_name IN ('Cache') + AND instance_name <> '_Total' + +-- Level 4 +INSERT @MemTree (Id, ParentId, counter_name, formatted_value, shortname) + SELECT + Id = 1225, + ParentId = 1220, + 'Plan ' + counter_name AS counter_name, + formatted_value, + shortname + FROM @Perf + WHERE object_name = 'Plan Cache' + AND counter_name IN ('Cache') + AND instance_name = '_Total' + + UNION ALL + + SELECT + Id = 1222, + ParentId = 1220, + counter_name, + formatted_value, + shortname + FROM @Perf + WHERE object_name = 'Cursor' + OR (object_name = 'Memory Manager' + AND shortname IN ('Connection', 'Lock', 'Optimizer', 'SQL')) + + UNION ALL + + SELECT + Id = 1112, + ParentId = 1110, + counter_name, + formatted_value, + shortname + FROM @Perf + WHERE object_name = 'Memory Manager' + AND shortname IN ('Reserved') + UNION ALL + SELECT + Id = P.ParentID + 1, + ParentID = P.ParentID, + 'Used Workspace Memory' AS counter_name, + SUM(used_memory_kb) / 1024. AS formatted_value, + NULL AS shortname + FROM sys.dm_exec_query_resource_semaphores + CROSS JOIN (SELECT + 1220 AS ParentID + UNION ALL + SELECT + 1110) P + GROUP BY P.ParentID + +-- Level 3 +INSERT @MemTree (Id, ParentId, counter_name, formatted_value, shortname) + SELECT + Id = + CASE counter_name + WHEN 'Granted Workspace Memory' THEN 1110 + WHEN 'Stolen Server Memory' THEN 1220 + ELSE 1210 + END, + ParentId = + CASE counter_name + WHEN 'Granted Workspace Memory' THEN 1100 + ELSE 1200 + END, + counter_name, + formatted_value, + shortname + FROM @Perf + WHERE object_name = 'Memory Manager' + AND counter_name IN ('Stolen Server Memory', 'Database Cache Memory', 'Free Memory', 'Granted Workspace Memory') + +-- Level 2 +INSERT @MemTree (Id, ParentId, counter_name, formatted_value, shortname) + SELECT + Id = + CASE + WHEN counter_name = 'Maximum Workspace Memory' THEN 1100 + ELSE 1200 + END, + ParentId = 1000, + counter_name, + formatted_value, + shortname + FROM @Perf + WHERE object_name = 'Memory Manager' + AND counter_name IN ('Total Server Memory', 'Maximum Workspace Memory') + +-- Level 1 +INSERT @MemTree (Id, ParentId, counter_name, formatted_value, shortname) + SELECT + Id = 1000, + ParentId = NULL, + counter_name, + formatted_value, + shortname + FROM @Perf + WHERE object_name = 'Memory Manager' + AND counter_name IN ('Target Server Memory') + +-- Level 4 -- 'Other Stolen Server Memory' = 'Stolen Server Memory' - SUM(Children of 'Stolen Server Memory') +INSERT @MemTree (Id, ParentId, counter_name, formatted_value, shortname) + SELECT + Id = 1222, + ParentId = 1220, + counter_name = '', + formatted_value = (SELECT + SSM.formatted_value + FROM @MemTree SSM + WHERE Id = 1220) + - SUM(formatted_value), + shortname = 'Other Stolen' + FROM @MemTree + WHERE ParentId = 1220 + +-- Results: + +-- PLE and Memory Grants +SELECT + [Counter Name] = P.counter_name + ISNULL(' (Node: ' + NULLIF(P.instance_name, '') + ')', ''), + cntr_value AS Value, + RecommendedMinimum = + CASE + WHEN P.counter_name = 'Page life expectancy' AND + R.Value <= 300 -- no less than 300 + THEN 300 + WHEN P.counter_name = 'Page life expectancy' AND + R.Value > 300 THEN R.Value + ELSE NULL + END +FROM @Perf P +LEFT JOIN -- Recommended PLE calculations +(SELECT + object_name, + counter_name, + instance_name, + CEILING(formatted_value / 4096. * 5) * 60 AS Value -- 300 per every 4GB of Buffer Pool memory or around 60 seconds (1 minute) per every 819MB +FROM @Perf PD +WHERE counter_name = 'Database Cache Memory') R + ON R.object_name = P.object_name + AND R.instance_name = P.instance_name +WHERE (P.object_name = 'Memory Manager' +AND P.counter_name IN ('Memory Grants Outstanding', 'Memory Grants Pending', 'Page life expectancy') +) +OR -- For NUMA +( +P.object_name = 'Memory Node' +AND P.counter_name = 'Page life expectancy' +AND (SELECT + COUNT(DISTINCT instance_name) +FROM @Perf +WHERE object_name = 'Memory Node') +> 1 +) +ORDER BY P.counter_name DESC, P.instance_name + +-- Get physical memory +-- You can also extract this information from sys.dm_os_sys_info but the column names have changed starting from 2012 +IF OBJECT_ID('tempdb..#msver') IS NOT NULL + DROP TABLE #msver +CREATE TABLE #msver ( + ID int, + Name sysname, + Internal_Value int, + Value nvarchar(512) +) +INSERT #msver EXEC master.dbo.xp_msver 'PhysicalMemory' + +-- Physical memory, config parameters and Target memory +SELECT + min_server_mb = (SELECT + CAST(value_in_use AS decimal(20, 2)) + FROM sys.configurations + WHERE name = 'min server memory (MB)'), + max_server_mb = (SELECT + CAST(value_in_use AS decimal(20, 2)) + FROM sys.configurations + WHERE name = 'max server memory (MB)'), + target_mb = (SELECT + formatted_value + FROM @Perf + WHERE object_name = 'Memory Manager' + AND counter_name IN ('Target Server Memory')), + physical_mb = CAST(Internal_Value AS decimal(20, 2)) +FROM #msver + +-- Memory tree +; +WITH CTE +AS (SELECT + 0 AS lvl, + counter_name, + formatted_value, + Id, + NULL AS ParentId, + shortname, + formatted_value AS TargetServerMemory, + CAST(NULL AS decimal(20, 4)) AS Perc, + CAST(NULL AS decimal(20, 4)) AS PercOfTarget +FROM @MemTree +WHERE ParentId IS NULL +UNION ALL +SELECT + CTE.lvl + 1, + CAST(REPLICATE(' ', 6 * (CTE.lvl)) + NCHAR(124) + REPLICATE(NCHAR(183), 3) + MT.counter_name AS nvarchar(128)), + MT.formatted_value, + MT.Id, + MT.ParentId, + MT.shortname, + CTE.TargetServerMemory, + CAST(ISNULL(1.0 * MT.formatted_value / NULLIF(CTE.formatted_value, 0), 0) AS decimal(20, 4)) AS Perc, + CAST(ISNULL(1.0 * MT.formatted_value / NULLIF(CTE.TargetServerMemory, 0), 0) AS decimal(20, 4)) AS PercOfTarget +FROM @MemTree MT +INNER JOIN CTE + ON MT.ParentId = CTE.Id) +SELECT + counter_name AS [Counter Name], + CASE + WHEN formatted_value > 0 THEN formatted_value + ELSE NULL + END AS [Memory MB], + Perc AS [% of Parent], + CASE + WHEN lvl >= 2 THEN PercOfTarget + ELSE NULL + END AS [% of Target] +FROM CTE +ORDER BY ISNULL(Id, 10000), formatted_value DESC; diff --git a/Scripts/SQL_Azure_Approximate_Datetime_Restart.sql b/Scripts/SQL_Azure_Approximate_Datetime_Restart.sql new file mode 100644 index 00000000..780f3d58 --- /dev/null +++ b/Scripts/SQL_Azure_Approximate_Datetime_Restart.sql @@ -0,0 +1,42 @@ +/* +Author: Mitch Wheat +Original link: https://mitchwheat.com/2018/10/12/when-did-my-azure-sql-database-server-restart/ +Created Date: 2018-10-18 +Modified Date: 2018-10-18 +*/ + +;with cte as +( + SELECT wait_time_ms + FROM sys.dm_os_wait_stats w with(nolock) + WHERE wait_type IN + ( + 'BROKER_TASK_STOP', + 'DIRTY_PAGE_POLL', + 'HADR_FILESTREAM_IOMGR_IOCOMPLETION', + 'LAZYWRITER_SLEEP', + 'LOGMGR_QUEUE', + 'REQUEST_FOR_DEADLOCK_SEARCH', + 'XE_DISPATCHER_WAIT', + 'XE_TIMER_EVENT' + ) +) +select + approx_ms_since_restart = AVG(wait_time_ms), + approximate_restart_date = DATEADD(s, AVG(-wait_time_ms)/1000, GETDATE()) +from +cte +cross join + (select + q1 = min(wait_time_ms), + q3 = max(wait_time_ms), + iqr = max(wait_time_ms) - min(wait_time_ms) + from (select + wait_time_ms, + row_number() over (order by wait_time_ms) as seqnum, + count(*) over (partition by null) as total + from cte + ) t + where seqnum = cast(total * 0.25 as int) or seqnum = cast(total * 0.75 as int) + ) qts + where (wait_time_ms >= q1 - 1.5 * iqr) AND (wait_time_ms <= q3 + 1.5 * iqr); diff --git a/Scripts/SQL_Server_Defaults.sql b/Scripts/SQL_Server_Defaults.sql new file mode 100644 index 00000000..07eeb70a --- /dev/null +++ b/Scripts/SQL_Server_Defaults.sql @@ -0,0 +1,161 @@ +WITH CTE_Defaults (ObjectName, AppliesToObjectType, SettingTypeName, SettingName, ConfiguredValue) AS ( + SELECT 'Global', 'Analysis Services', 'Analysis Services', 'Collect Memory by Category Data', 'No' UNION + SELECT 'Global', 'Analysis Services', 'Analysis Services', 'Maintenance Window Enabled', 'No' UNION + SELECT 'Global', 'Analysis Services', 'Analysis Services', 'Maintenance Window Name', 'None' UNION + SELECT 'Global', 'Analysis Services', 'Analysis Services', 'Synchronization Threshold', '0.00:30:00' UNION + SELECT 'Global', 'Analysis Services', 'Analysis Services', 'Synchronization Type', 'Don''t synchronize automatically.' UNION + SELECT 'Global', 'Analysis Services', 'Top Commands Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'Analysis Services', 'Top Commands Source', 'Collect MDX/DMX/XMLA Events', 'Yes' UNION + SELECT 'Global', 'Analysis Services', 'Top Commands Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'Analysis Services', 'Top Commands Source', 'Minimum Duration', '0.00:00:01' UNION + SELECT 'Global', 'Analysis Services', 'Top Commands Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'Analytics Platform System', 'Analytics Platform System', 'Maintenance Window Enabled', 'No' UNION + SELECT 'Global', 'Analytics Platform System', 'Analytics Platform System', 'Maintenance Window Name', 'None' UNION + SELECT 'Global', 'APS', 'APS Distributed Queries Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'APS', 'APS Distributed Queries Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'APS', 'APS Distributed Queries Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'APS', 'APS Health Alerts Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'APS', 'APS Health Alerts Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'APS', 'APS Health Alerts Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'APS', 'APS Loader Backup Runs Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'APS', 'APS Loader Backup Runs Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'APS', 'APS Loader Backup Runs Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'APS Distributed Queries', 'APS Distributed Queries', 'Maximum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'APS Distributed Queries', 'APS Distributed Queries', 'Maximum Runtime Threshold Percent', '250%' UNION + SELECT 'Global', 'APS Distributed Queries', 'APS Distributed Queries', 'Minimum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'APS Distributed Queries', 'APS Distributed Queries', 'Minimum Runtime Threshold Percent', '10%' UNION + SELECT 'Global', 'APS Loader Backup Run', 'APS Loader Backup Run', 'Maximum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'APS Loader Backup Run', 'APS Loader Backup Run', 'Maximum Runtime Threshold Percent', '250%' UNION + SELECT 'Global', 'APS Loader Backup Run', 'APS Loader Backup Run', 'Minimum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'APS Loader Backup Run', 'APS Loader Backup Run', 'Minimum Runtime Threshold Percent', '10%' UNION + SELECT 'Global', 'Azure SQL Data Warehouse', 'Azure SQL Data Warehouse', 'Maintenance Window Enabled', 'No' UNION + SELECT 'Global', 'Azure SQL Data Warehouse', 'Azure SQL Data Warehouse', 'Maintenance Window Name', 'None' UNION + SELECT 'Global', 'Azure SQL Data Warehouse', 'Azure SQL Data Warehouse Distributed Queries Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'Azure SQL Data Warehouse', 'Azure SQL Data Warehouse Distributed Queries Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'Azure SQL Data Warehouse', 'Azure SQL Data Warehouse Distributed Queries Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'Azure SQL Data Warehouse', 'Azure SQL Data Warehouse Loader Backup Runs Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'Azure SQL Data Warehouse', 'Azure SQL Data Warehouse Loader Backup Runs Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'Azure SQL Data Warehouse', 'Azure SQL Data Warehouse Loader Backup Runs Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'Azure SQL Data Warehouse Distributed Queries', 'Azure SQL Data Warehouse Distributed Queries', 'Maximum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'Azure SQL Data Warehouse Distributed Queries', 'Azure SQL Data Warehouse Distributed Queries', 'Maximum Runtime Threshold Percent', '250%' UNION + SELECT 'Global', 'Azure SQL Data Warehouse Distributed Queries', 'Azure SQL Data Warehouse Distributed Queries', 'Minimum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'Azure SQL Data Warehouse Distributed Queries', 'Azure SQL Data Warehouse Distributed Queries', 'Minimum Runtime Threshold Percent', '10%' UNION + SELECT 'Global', 'Azure SQL Data Warehouse Loader Backup Run', 'Azure SQL Data Warehouse Loader Backup Run', 'Maximum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'Azure SQL Data Warehouse Loader Backup Run', 'Azure SQL Data Warehouse Loader Backup Run', 'Maximum Runtime Threshold Percent', '250%' UNION + SELECT 'Global', 'Azure SQL Data Warehouse Loader Backup Run', 'Azure SQL Data Warehouse Loader Backup Run', 'Minimum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'Azure SQL Data Warehouse Loader Backup Run', 'Azure SQL Data Warehouse Loader Backup Run', 'Minimum Runtime Threshold Percent', '10%' UNION + SELECT 'Global', 'Azure SQL Database', 'Azure SQL Database', 'Maintenance Window Enabled', 'No' UNION + SELECT 'Global', 'Azure SQL Database', 'Azure SQL Database', 'Maintenance Window Name', 'None' UNION + SELECT 'Global', 'Azure SQL Database', 'Top SQL Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'Azure SQL Database', 'Top SQL Source', 'Collect Batch and RPC Events', 'No' UNION + SELECT 'Global', 'Azure SQL Database', 'Top SQL Source', 'Collect Statement Events', 'No' UNION + SELECT 'Global', 'Azure SQL Database', 'Top SQL Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'Azure SQL Database', 'Top SQL Source', 'Minimum CPU', '0' UNION + SELECT 'Global', 'Azure SQL Database', 'Top SQL Source', 'Minimum Duration', '0.00:00:05' UNION + SELECT 'Global', 'Azure SQL Database', 'Top SQL Source', 'Minimum Reads', '0' UNION + SELECT 'Global', 'Azure SQL Database', 'Top SQL Source', 'Minimum Writes', '0' UNION + SELECT 'Global', 'Azure SQL Database', 'Top SQL Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'Blocking SQL', 'Blocking SQL', 'Maximum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'Blocking SQL', 'Blocking SQL', 'Maximum Runtime Threshold Percent', '250%' UNION + SELECT 'Global', 'Blocking SQL', 'Blocking SQL', 'Minimum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'Blocking SQL', 'Blocking SQL', 'Minimum Runtime Threshold Percent', '10%' UNION + SELECT 'Global', 'Database', 'Databases Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'Database', 'Databases Source', 'Collect Buffer Data when Buffer > 8GB', 'False' UNION + SELECT 'Global', 'Database', 'Databases Source', 'Max Index Size (MB) to Collect Fragmentation Data', '50000' UNION + SELECT 'Global', 'Database', 'Databases Source', 'Max Partitions to Collect per Database', '500' UNION + SELECT 'Global', 'Database', 'Databases Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'Database', 'Databases Source', 'Min Index Size (MB) to Collect Fragmentation Data', '10' UNION + SELECT 'Global', 'Database', 'Databases Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'Index', 'Index Defragmentation', 'Enable Index Defragmentation', 'False' UNION + SELECT 'Global', 'Index', 'Index Defragmentation', 'Fragmentation Scan Mode', 'Limited' UNION + SELECT 'Global', 'Index', 'Index Defragmentation', 'MAXDOP', '0' UNION + SELECT 'Global', 'Index', 'Index Defragmentation', 'Maximum Concurrent Defrag Operations', '1' UNION + SELECT 'Global', 'Index', 'Index Defragmentation', 'Maximum Duration', '0.02:00:00' UNION + SELECT 'Global', 'Index', 'Index Defragmentation', 'Maximum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'Index', 'Index Defragmentation', 'Maximum Runtime Threshold Percent', '250%' UNION + SELECT 'Global', 'Index', 'Index Defragmentation', 'Minimum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'Index', 'Index Defragmentation', 'Minimum Runtime Threshold Percent', '10%' UNION + SELECT 'Global', 'Index', 'Index Defragmentation', 'Partitions', 'All' UNION + SELECT 'Global', 'Index', 'Index Defragmentation', 'Rebuild Threshold %', '30' UNION + SELECT 'Global', 'Index', 'Index Defragmentation', 'Reorg Threshold %', '10' UNION + SELECT 'Global', 'Index', 'Index Defragmentation', 'Run Post-defrag Analysis', 'True' UNION + SELECT 'Global', 'Index', 'Index Defragmentation', 'Schedule', '' UNION + SELECT 'Global', 'Index', 'Index Defragmentation', 'Sort in tempdb', 'False' UNION + SELECT 'Global', 'Index', 'Index Defragmentation', 'Use Online Rebuild', 'True' UNION + SELECT 'Global', 'Reporting Services Report', 'Reporting Services Report', 'Maximum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'Reporting Services Report', 'Reporting Services Report', 'Maximum Runtime Threshold Percent', '250%' UNION + SELECT 'Global', 'Reporting Services Report', 'Reporting Services Report', 'Minimum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'Reporting Services Report', 'Reporting Services Report', 'Minimum Runtime Threshold Percent', '10%' UNION + SELECT 'Global', 'SQL Server', 'Blocking SQL Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'SQL Server', 'Blocking SQL Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'SQL Server', 'Blocking SQL Source', 'Minimum Block Duration', '0.00:00:15' UNION + SELECT 'Global', 'SQL Server', 'Blocking SQL Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'SQL Server', 'Deadlocks Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'SQL Server', 'Deadlocks Source', 'Collect Deadlock Events', 'Yes' UNION + SELECT 'Global', 'SQL Server', 'Deadlocks Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'SQL Server', 'Deadlocks Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'SQL Server', 'Maintenance Plans Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'SQL Server', 'Maintenance Plans Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'SQL Server', 'Maintenance Plans Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'SQL Server', 'Reporting Services Reports Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'SQL Server', 'Reporting Services Reports Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'SQL Server', 'Reporting Services Reports Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'SQL Server', 'SQL Server', 'Auto-enable SQL Server Agent Tokens', 'Yes' UNION + SELECT 'Global', 'SQL Server', 'SQL Server', 'Auto-recycle Large SQL Server Agent Logs', 'No' UNION + SELECT 'Global', 'SQL Server', 'SQL Server', 'Maintenance Window Enabled', 'No' UNION + SELECT 'Global', 'SQL Server', 'SQL Server', 'Maintenance Window Name', 'None' UNION + SELECT 'Global', 'SQL Server', 'SQL Server', 'Max Databases to Synchronize (largest first)', '100' UNION + SELECT 'Global', 'SQL Server', 'SQL Server', 'Maximum Queue Length', '5' UNION + SELECT 'Global', 'SQL Server', 'SQL Server', 'Synchronization Threshold', '0.00:30:00' UNION + SELECT 'Global', 'SQL Server', 'SQL Server', 'Synchronization Type', 'Don''t synchronize automatically.' UNION + SELECT 'Global', 'SQL Server', 'SQL Server Agent Alerts Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'SQL Server', 'SQL Server Agent Alerts Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'SQL Server', 'SQL Server Agent Alerts Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'SQL Server', 'SQL Server Agent Jobs Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'SQL Server', 'SQL Server Agent Jobs Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'SQL Server', 'SQL Server Agent Jobs Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'SQL Server', 'SQL Server Agent Log Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'SQL Server', 'SQL Server Agent Log Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'SQL Server', 'SQL Server Agent Log Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'SQL Server', 'Top SQL Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'SQL Server', 'Top SQL Source', 'Collect Batch and RPC Events', 'Yes' UNION + SELECT 'Global', 'SQL Server', 'Top SQL Source', 'Collect Statement Events', 'Yes' UNION + SELECT 'Global', 'SQL Server', 'Top SQL Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'SQL Server', 'Top SQL Source', 'Minimum CPU', '0' UNION + SELECT 'Global', 'SQL Server', 'Top SQL Source', 'Minimum Duration', '0.00:00:05' UNION + SELECT 'Global', 'SQL Server', 'Top SQL Source', 'Minimum Reads', '0' UNION + SELECT 'Global', 'SQL Server', 'Top SQL Source', 'Minimum Writes', '0' UNION + SELECT 'Global', 'SQL Server', 'Top SQL Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'SQL Server Agent Job', 'SQL Server Agent Job', 'Auto-start Threshold', '0.04:00:00' UNION + SELECT 'Global', 'SQL Server Agent Job', 'SQL Server Agent Job', 'Auto-start Threshold Enabled', 'No' UNION + SELECT 'Global', 'SQL Server Agent Job', 'SQL Server Agent Job', 'Auto-start Type', 'Use default setting.' UNION + SELECT 'Global', 'SQL Server Agent Job', 'SQL Server Agent Job', 'Behavior When Queued', 'Never Queue.' UNION + SELECT 'Global', 'SQL Server Agent Job', 'SQL Server Agent Job', 'Behavior When Queuing', 'Never Queue.' UNION + SELECT 'Global', 'SQL Server Agent Job', 'SQL Server Agent Job', 'Maximum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'SQL Server Agent Job', 'SQL Server Agent Job', 'Maximum Runtime Threshold Percent', '250%' UNION + SELECT 'Global', 'SQL Server Agent Job', 'SQL Server Agent Job', 'Minimum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'SQL Server Agent Job', 'SQL Server Agent Job', 'Minimum Runtime Threshold Percent', '10%' UNION + SELECT 'Global', 'SQL Server Agent Job', 'SQL Server Agent Job', 'Queue For', '0.00:30:00' UNION + SELECT 'Global', 'SQL Server Agent Job', 'SQL Server Agent Job', 'Queue Others For', '0.00:30:00' UNION + SELECT 'Global', 'Top Commands', 'Top Commands', 'Maximum Runtime Threshold', '0.01:00:00' UNION + SELECT 'Global', 'Top Commands', 'Top Commands', 'Maximum Runtime Threshold Percent', '250%' UNION + SELECT 'Global', 'Top Commands', 'Top Commands', 'Minimum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'Top Commands', 'Top Commands', 'Minimum Runtime Threshold Percent', '10%' UNION + SELECT 'Global', 'Top SQL', 'Top SQL', 'Maximum Runtime Threshold', '0.01:00:00' UNION + SELECT 'Global', 'Top SQL', 'Top SQL', 'Maximum Runtime Threshold Percent', '250%' UNION + SELECT 'Global', 'Top SQL', 'Top SQL', 'Minimum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'Top SQL', 'Top SQL', 'Minimum Runtime Threshold Percent', '10%' UNION + SELECT 'Global', 'Windows', 'Windows Event Logs Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'Windows', 'Windows Event Logs Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'Windows', 'Windows Event Logs Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'Windows', 'Windows Tasks Source', 'Auto-Watch New Objects', 'Yes' UNION + SELECT 'Global', 'Windows', 'Windows Tasks Source', 'Maximum Rows To Synchronize', '5000' UNION + SELECT 'Global', 'Windows', 'Windows Tasks Source', 'Missed Run Wait Time', '0.00:05:00' UNION + SELECT 'Global', 'Windows Computer', 'Windows Computer', 'Maintenance Window Enabled', 'No' UNION + SELECT 'Global', 'Windows Computer', 'Windows Computer', 'Maintenance Window Name', 'None' UNION + SELECT 'Global', 'Windows Task', 'Windows Task', 'Maximum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'Windows Task', 'Windows Task', 'Maximum Runtime Threshold Percent', '250%' UNION + SELECT 'Global', 'Windows Task', 'Windows Task', 'Minimum Runtime Threshold', '0.00:00:00' UNION + SELECT 'Global', 'Windows Task', 'Windows Task', 'Minimum Runtime Threshold Percent', '10%' +) +SELECT * FROM CTE_Defaults; diff --git a/Scripts/SQL_Server_Fixed_Role_Permissions.sql b/Scripts/SQL_Server_Fixed_Role_Permissions.sql new file mode 100644 index 00000000..27c637e8 --- /dev/null +++ b/Scripts/SQL_Server_Fixed_Role_Permissions.sql @@ -0,0 +1,24 @@ +--SQL Server Fixed Role Permissions +--Author: Jason Brimhall +--In this script, I have taken the results from each of the stored procedures and dumped them into a temp table. +--Using this temp table, I can now join to this table to get a more complete list of the permissions in effect for various principals. + +CREATE TABLE #role_permission + ( + DBFixedRole VARCHAR(128) + , Permission VARCHAR(128) + ) +INSERT INTO #role_permission + ( DBFixedRole, Permission ) + EXECUTE sp_dbfixedrolepermission +GO + +INSERT INTO #role_permission + ( DBFixedRole, Permission ) + EXECUTE sp_srvrolepermission +GO + +SELECT * + FROM #role_permission r; + +DROP TABLE #role_permission; \ No newline at end of file diff --git a/Scripts/Save_Error_Log_To_Table.sql b/Scripts/Save_Error_Log_To_Table.sql new file mode 100644 index 00000000..ba051fea --- /dev/null +++ b/Scripts/Save_Error_Log_To_Table.sql @@ -0,0 +1,64 @@ +/* +Original link: https://sqlstudies.com/2018/05/31/updated-query-to-view-data-in-the-error-log/ +Author: Kenneth Fisher +*/ + +IF OBJECT_ID(N'tempdb..#LogInfo', 'U') IS NOT NULL DROP TABLE #LogInfo; + +DECLARE @searchstring1 nvarchar(500) = ''; +DECLARE @searchstring2 nvarchar(500) = ''; + +---------------------------------------------------------------------- +-- This part of the code was found here: +-- https://ask.sqlservercentral.com/questions/99484/number-of-error-log-files.html + +DECLARE @FileList AS TABLE ( + subdirectory NVARCHAR(4000) NOT NULL + ,DEPTH BIGINT NOT NULL + ,[FILE] BIGINT NOT NULL +); + +DECLARE @ErrorLog NVARCHAR(4000), @ErrorLogPath NVARCHAR(4000); +SELECT @ErrorLog = CAST(SERVERPROPERTY(N'errorlogfilename') AS NVARCHAR(4000)); +SELECT @ErrorLogPath = SUBSTRING(@ErrorLog, 1, LEN(@ErrorLog) - CHARINDEX(N'\', REVERSE(@ErrorLog))) + N'\'; + +INSERT INTO @FileList +EXEC xp_dirtree @ErrorLogPath, 0, 1; + +DECLARE @NumberOfLogfiles INT; +SET @NumberOfLogfiles = (SELECT COUNT(*) FROM @FileList WHERE [@FileList].subdirectory LIKE N'ERRORLOG%'); +-- SELECT @NumberOfLogfiles; +---------------------------------------------------------------------- + +CREATE TABLE #LogInfo ( + LogDate datetime, + ProcessInfo nvarchar(500), + ErrorText nvarchar(max)); + +DECLARE @p1 INT = 0; + +WHILE @p1 < @NumberOfLogfiles +BEGIN + -- P1 is the file number starting at 0 + DECLARE + @p2 INT = 1, + -- P2 1 for SQL logs, 2 for SQL Agent logs + @p3 NVARCHAR(255) = @searchstring1, + -- P3 is a value to search on + @p4 NVARCHAR(255) = @searchstring2 + -- P4 is another search value + +BEGIN TRY + INSERT INTO #LogInfo + EXEC sys.xp_readerrorlog @p1,@p2,@p3,@p4; +END TRY +BEGIN CATCH + PRINT 'Error occurred processing file ' + cast(@p1 as varchar(10)); +END CATCH; + +SET @p1 = @p1 + 1; +END; + +SELECT * FROM #LogInfo +WHERE ProcessInfo NOT IN ('Backup','Logon') +ORDER BY LogDate DESC; diff --git a/Scripts/Security_Audit_Report.sql b/Scripts/Security_Audit_Report.sql new file mode 100644 index 00000000..3bdf3342 --- /dev/null +++ b/Scripts/Security_Audit_Report.sql @@ -0,0 +1,273 @@ +/* +Author: Jeremy +Modified by: John Zabroski +Original link: https://stackoverflow.com/a/52320673/2298061 + +Security Audit Report +1) List all access provisioned to a sql user or windows user/group directly +2) List all access provisioned to a sql user or windows user/group through a database or application role +3) List all access provisioned to the public role + +Columns Returned: +UserName : SQL or Windows/Active Directory user account. This could also be an Active Directory group. +UserType : Value will be either 'SQL User' or 'Windows User'. This reflects the type of user defined for the + SQL Server user account. +PrinciaplUserName: if UserName is not blank, then UserName else DatabaseUserName +PrincipalType : Possible values are 'SQL User', 'Windows User', 'Database Role', 'Windows Group' +DatabaseUserName : Name of the associated user as defined in the database user account. The database user may not be the + same as the server user. +Role : The role name. This will be null if the associated permissions to the object are defined at directly + on the user account, otherwise this will be the name of the role that the user is a member of. +PermissionType : Type of permissions the user/role has on an object. Examples could include CONNECT, EXECUTE, SELECT + DELETE, INSERT, ALTER, CONTROL, TAKE OWNERSHIP, VIEW DEFINITION, etc. + This value may not be populated for all roles. Some built in roles have implicit permission + definitions. +PermissionState : Reflects the state of the permission type, examples could include GRANT, DENY, etc. + This value may not be populated for all roles. Some built in roles have implicit permission + definitions. +ObjectType : Type of object the user/role is assigned permissions on. Examples could include USER_TABLE, + SQL_SCALAR_FUNCTION, SQL_INLINE_TABLE_VALUED_FUNCTION, SQL_STORED_PROCEDURE, VIEW, etc. + This value may not be populated for all roles. Some built in roles have implicit permission + definitions. +ObjectName : Name of the object that the user/role is assigned permissions on. + This value may not be populated for all roles. Some built in roles have implicit permission + definitions. +ColumnName : Name of the column of the object that the user/role is assigned permissions on. This value + is only populated if the object is a table, view or a table value function. +*/ + +DECLARE @HideDatabaseDiagrams BIT = 1; + +--List all access provisioned to a sql user or windows user/group directly +SELECT + [UserName] = CASE princ.[type] + WHEN 'S' THEN princ.[name] + WHEN 'U' THEN ulogin.[name] COLLATE Latin1_General_CI_AI + WHEN 'R' THEN NULL -- Database Role + WHEN 'G' THEN NULL -- Windows Group + ELSE NULL + END, + [UserType] = CASE princ.[type] + WHEN 'S' THEN 'SQL User' + WHEN 'U' THEN 'Windows User' + WHEN 'R' THEN NULL -- Database Role + WHEN 'G' THEN NULL -- Windows Group + ELSE princ.[type] + END, + [PrincipalUserName] = COALESCE( + CASE princ.[type] + WHEN 'S' THEN princ.[name] + WHEN 'U' THEN ulogin.[name] COLLATE Latin1_General_CI_AI + WHEN 'R' THEN NULL -- Database Role + WHEN 'G' THEN NULL -- Windows Group + ELSE NULL + END, + princ.[name] + ), + [PrincipalType] = CASE princ.[type] + WHEN 'S' THEN 'SQL User' + WHEN 'U' THEN 'Windows User' + WHEN 'R' THEN 'Database Role' + WHEN 'G' THEN 'Windows Group' + END, + [DatabaseUserName] = princ.[name], + [Role] = null, + [PermissionType] = perm.[permission_name], + [PermissionState] = perm.[state_desc], + [ObjectType] = obj.type_desc,--perm.[class_desc], + [ObjectSchema] = OBJECT_SCHEMA_NAME(perm.major_id), + [ObjectName] = OBJECT_NAME(perm.major_id), + [ColumnName] = col.[name] +FROM + --database user + sys.database_principals princ +LEFT JOIN + --Login accounts + sys.login_token ulogin on princ.[sid] = ulogin.[sid] +LEFT JOIN + --Permissions + sys.database_permissions perm ON perm.[grantee_principal_id] = princ.[principal_id] +LEFT JOIN + --Table columns + sys.columns col ON col.[object_id] = perm.major_id + AND col.[column_id] = perm.[minor_id] +LEFT JOIN + sys.objects obj ON perm.[major_id] = obj.[object_id] +WHERE + princ.[type] in ('S','U') + AND CASE + WHEN @HideDatabaseDiagrams = 1 AND + princ.[name] = 'guest' + AND ( + ( + obj.type_desc = 'SQL_SCALAR_FUNCTION' + AND OBJECT_NAME(perm.major_id) = 'fn_diagramobjects' + ) + OR ( + obj.type_desc = 'SQL_STORED_PROCEDURE' + AND OBJECT_NAME(perm.major_id) IN + ( + N'sp_alterdiagram', + N'sp_creatediagram', + N'sp_dropdiagram', + N'sp_helpdiagramdefinition', + N'sp_helpdiagrams', + N'sp_renamediagram' + ) + ) + ) + THEN 0 + ELSE 1 + END = 1 +UNION +--List all access provisioned to a sql user or windows user/group through a database or application role +SELECT + [UserName] = CASE memberprinc.[type] + WHEN 'S' THEN memberprinc.[name] + WHEN 'U' THEN ulogin.[name] COLLATE Latin1_General_CI_AI + WHEN 'R' THEN NULL -- Database Role + WHEN 'G' THEN NULL -- Windows Group + ELSE NULL + END, + [UserType] = CASE memberprinc.[type] + WHEN 'S' THEN 'SQL User' + WHEN 'U' THEN 'Windows User' + WHEN 'R' THEN NULL -- Database Role + WHEN 'G' THEN NULL -- Windows Group + END, + [PrincipalUserName] = COALESCE( + CASE memberprinc.[type] + WHEN 'S' THEN memberprinc.[name] + WHEN 'U' THEN ulogin.[name] COLLATE Latin1_General_CI_AI + WHEN 'R' THEN NULL -- Database Role + WHEN 'G' THEN NULL -- Windows Group + ELSE NULL + END, + memberprinc.[name] + ), + [PrincipalType] = CASE memberprinc.[type] + WHEN 'S' THEN 'SQL User' + WHEN 'U' THEN 'Windows User' + WHEN 'R' THEN 'Database Role' + WHEN 'G' THEN 'Windows Group' + END, + [DatabaseUserName] = memberprinc.[name], + [Role] = roleprinc.[name], + [PermissionType] = perm.[permission_name], + [PermissionState] = perm.[state_desc], + [ObjectType] = obj.type_desc,--perm.[class_desc], + [ObjectSchema] = OBJECT_SCHEMA_NAME(perm.major_id), + [ObjectName] = OBJECT_NAME(perm.major_id), + [ColumnName] = col.[name] +FROM + --Role/member associations + sys.database_role_members members +JOIN + --Roles + sys.database_principals roleprinc ON roleprinc.[principal_id] = members.[role_principal_id] +JOIN + --Role members (database users) + sys.database_principals memberprinc ON memberprinc.[principal_id] = members.[member_principal_id] +LEFT JOIN + --Login accounts + sys.login_token ulogin on memberprinc.[sid] = ulogin.[sid] +LEFT JOIN + --Permissions + sys.database_permissions perm ON perm.[grantee_principal_id] = roleprinc.[principal_id] +LEFT JOIN + --Table columns + sys.columns col on col.[object_id] = perm.major_id + AND col.[column_id] = perm.[minor_id] +LEFT JOIN + sys.objects obj ON perm.[major_id] = obj.[object_id] +WHERE + CASE + WHEN @HideDatabaseDiagrams = 1 AND + memberprinc.[name] = 'guest' + AND ( + ( + obj.type_desc = 'SQL_SCALAR_FUNCTION' + AND OBJECT_NAME(perm.major_id) = 'fn_diagramobjects' + ) + OR ( + obj.type_desc = 'SQL_STORED_PROCEDURE' + AND OBJECT_NAME(perm.major_id) IN + ( + N'sp_alterdiagram', + N'sp_creatediagram', + N'sp_dropdiagram', + N'sp_helpdiagramdefinition', + N'sp_helpdiagrams', + N'sp_renamediagram' + ) + ) + ) + THEN 0 + ELSE 1 + END = 1 +UNION +--List all access provisioned to the public role, which everyone gets by default +SELECT + [UserName] = '{All Users}', + [UserType] = '{All Users}', + [PrincipalUserName] = '{All Users}', + [PrincipalType] = '{All Users}', + [DatabaseUserName] = '{All Users}', + [Role] = roleprinc.[name], + [PermissionType] = perm.[permission_name], + [PermissionState] = perm.[state_desc], + [ObjectType] = obj.type_desc,--perm.[class_desc], + [ObjectSchema] = OBJECT_SCHEMA_NAME(perm.major_id), + [ObjectName] = OBJECT_NAME(perm.major_id), + [ColumnName] = col.[name] +FROM + --Roles + sys.database_principals roleprinc +LEFT JOIN + --Role permissions + sys.database_permissions perm ON perm.[grantee_principal_id] = roleprinc.[principal_id] +LEFT JOIN + --Table columns + sys.columns col on col.[object_id] = perm.major_id + AND col.[column_id] = perm.[minor_id] +JOIN + --All objects + sys.objects obj ON obj.[object_id] = perm.[major_id] +WHERE + --Only roles + roleprinc.[type] = 'R' AND + --Only public role + roleprinc.[name] = 'public' AND + --Only objects of ours, not the MS objects + obj.is_ms_shipped = 0 + AND CASE + WHEN @HideDatabaseDiagrams = 1 AND + roleprinc.[name] = 'public' + AND ( + ( + obj.type_desc = 'SQL_SCALAR_FUNCTION' + AND OBJECT_NAME(perm.major_id) = 'fn_diagramobjects' + ) + OR ( + obj.type_desc = 'SQL_STORED_PROCEDURE' + AND OBJECT_NAME(perm.major_id) IN + ( + N'sp_alterdiagram', + N'sp_creatediagram', + N'sp_dropdiagram', + N'sp_helpdiagramdefinition', + N'sp_helpdiagrams', + N'sp_renamediagram' + ) + ) + ) + THEN 0 + ELSE 1 + END = 1 +ORDER BY + princ.[name], + OBJECT_NAME(perm.major_id), + col.[name], + perm.[permission_name], + perm.[state_desc], + obj.type_desc; diff --git a/Scripts/Server_Parameters.sql b/Scripts/Server_Parameters.sql new file mode 100644 index 00000000..bf3fd81c --- /dev/null +++ b/Scripts/Server_Parameters.sql @@ -0,0 +1,124 @@ +/* +Author: SSMS Default report +*/ + +BEGIN try +DECLARE @configurations_option_table table ( + name nvarchar(128) +, run_value bigint +, default_value bigint +); +DECLARE @sp_configure_table table ( + name nvarchar(128) +, minimum bigint +, maximum bigint +, config_value bigint +, run_value bigint +); +DECLARE @tracestatus table( + TraceFlag nvarchar(40) +, Status tinyint +, Global tinyint +, Session tinyint +); + +INSERT INTO @sp_configure_table +SELECT NAME +, convert(bigint,minimum) +, convert(bigint,maximum) +, convert(bigint,value) +, convert(bigint,value_in_use) +FROM sys.configurations; + +INSERT INTO @configurations_option_table VALUES('Ad Hoc Distributed Queries',0,0); +INSERT INTO @configurations_option_table VALUES('affinity I/O mask',0,0); +INSERT INTO @configurations_option_table VALUES('affinity mask',0,0); +INSERT INTO @configurations_option_table VALUES('Agent XPs',0,0); +INSERT INTO @configurations_option_table VALUES('allow updates',0,0); +INSERT INTO @configurations_option_table VALUES('awe enabled',0,0); +INSERT INTO @configurations_option_table VALUES('blocked process threshold',0,0); +INSERT INTO @configurations_option_table VALUES('c2 audit mode',0,0); +INSERT INTO @configurations_option_table VALUES('clr enabled',0,0); +INSERT INTO @configurations_option_table VALUES('cost threshold for parallelism',5,5); +INSERT INTO @configurations_option_table VALUES('cross db ownership chaining',0,0); +INSERT INTO @configurations_option_table VALUES('cursor threshold',-1,-1); +INSERT INTO @configurations_option_table VALUES('Database Mail XPs',0,0); +INSERT INTO @configurations_option_table VALUES('default full-text language',1033,1033); +INSERT INTO @configurations_option_table VALUES('default language',0,0); +INSERT INTO @configurations_option_table VALUES('default trace enabled',1,1); +INSERT INTO @configurations_option_table VALUES('disallow results from triggers',0,0); +INSERT INTO @configurations_option_table VALUES('fill factor (%);',0,0); +INSERT INTO @configurations_option_table VALUES('ft crawl bandwidth (max);',100,100); +INSERT INTO @configurations_option_table VALUES('ft crawl bandwidth (min);',0,0); +INSERT INTO @configurations_option_table VALUES('ft notify bandwidth (max);',100,100); +INSERT INTO @configurations_option_table VALUES('ft notify bandwidth (min);',0,0); +INSERT INTO @configurations_option_table VALUES('index create memory (KB);',0,0); +INSERT INTO @configurations_option_table VALUES('in-doubt xact resolution',0,0); +INSERT INTO @configurations_option_table VALUES('lightweight pooling',0,0); +INSERT INTO @configurations_option_table VALUES('locks',0,0); +INSERT INTO @configurations_option_table VALUES('max degree of parallelism',0,0); +INSERT INTO @configurations_option_table VALUES('max full-text crawl range',4,4); +INSERT INTO @configurations_option_table VALUES('max server memory (MB);',2147483647,2147483647); +INSERT INTO @configurations_option_table VALUES('max text repl size (B);',65536,65536); +INSERT INTO @configurations_option_table VALUES('max worker threads',0,0); +INSERT INTO @configurations_option_table VALUES('media retention',0,0); +INSERT INTO @configurations_option_table VALUES('min memory per query (KB);',1024,1024); +INSERT INTO @configurations_option_table VALUES('min server memory (MB);',0,0); +INSERT INTO @configurations_option_table VALUES('nested triggers',1,1); +INSERT INTO @configurations_option_table VALUES('network packet size (B);',4096,4096); +INSERT INTO @configurations_option_table VALUES('Ole Automation Procedures',0,0); +INSERT INTO @configurations_option_table VALUES('open objects',0,0); +INSERT INTO @configurations_option_table VALUES('PH timeout (s);',60,60); +INSERT INTO @configurations_option_table VALUES('precompute rank',0,0); +INSERT INTO @configurations_option_table VALUES('priority boost',0,0); +INSERT INTO @configurations_option_table VALUES('query governor cost limit',0,0); +INSERT INTO @configurations_option_table VALUES('query wait (s);',-1,-1); +INSERT INTO @configurations_option_table VALUES('recovery interval (min);',0,0); +INSERT INTO @configurations_option_table VALUES('remote access',1,1); +INSERT INTO @configurations_option_table VALUES('remote admin connections',0,0); +INSERT INTO @configurations_option_table VALUES('remote login timeout (s);',20,20); +INSERT INTO @configurations_option_table VALUES('remote proc trans',0,0); +INSERT INTO @configurations_option_table VALUES('remote query timeout (s);',600,600); +INSERT INTO @configurations_option_table VALUES('Replication XPs',0,0); +INSERT INTO @configurations_option_table VALUES('RPC parameter data validation',0,0); +INSERT INTO @configurations_option_table VALUES('scan for startup procs',0,0); +INSERT INTO @configurations_option_table VALUES('server trigger recursion',1,1); +INSERT INTO @configurations_option_table VALUES('set working set size',0,0); +INSERT INTO @configurations_option_table VALUES('show advanced options',0,0); +INSERT INTO @configurations_option_table VALUES('SMO and DMO XPs',1,1); +INSERT INTO @configurations_option_table VALUES('SQL Mail XPs',0,0); +INSERT INTO @configurations_option_table VALUES('transform noise words',0,0); +INSERT INTO @configurations_option_table VALUES('two digit year cutoff',2049,2049); +INSERT INTO @configurations_option_table VALUES('user connections',0,0); +INSERT INTO @configurations_option_table VALUES('user options',0,0); +INSERT INTO @configurations_option_table VALUES('Web Assistant Procedures',0,0); +INSERT INTO @configurations_option_table VALUES('xp_cmdshell',0,0); + +INSERT INTO @tracestatus exec('dbcc tracestatus'); +UPDATE @tracestatus set TraceFlag = 'Traceflag ('+TraceFlag+')'; + +SELECT 1 as l1 +, st.name as name +, convert(nvarchar(15),st.run_value) as run_value +, convert(nvarchar(15),ct.default_value) as default_value +, 1 as msg +FROM @configurations_option_table ct +LEFT join @sp_configure_table st on (ct.name = st.name and ct.default_value != st.run_value) +UNION +SELECT 1 as l1 +, TraceFlag as name +, convert(nvarchar(15), Status) as run_value +, '0' as default_value +, 1 as msg +FROM @tracestatus +WHERE Global=1 +ORDER BY name; +END try + +BEGIN catch +SELECT -100 as l1 +, ERROR_NUMBER() as name +, ERROR_SEVERITY() as run_value +, ERROR_STATE() as default_value +, ERROR_MESSAGE() as msg +END catch diff --git a/Scripts/Show all permissions in a database.sql b/Scripts/Show all permissions in a database.sql new file mode 100644 index 00000000..45c9bfa2 --- /dev/null +++ b/Scripts/Show all permissions in a database.sql @@ -0,0 +1,542 @@ +/* + +This script lists all permissions given to all principals on all +database objects. Optionally, you can filter by a single user or object +using the @singleUser and/or @singleObject variables: + +*/ + +DECLARE @singleUser sysname=NULL, + @singleObject sysname=NULL; + +/* + +Copyright Daniel Hutmacher under Creative Commons 4.0 license with attribution. +http://creativecommons.org/licenses/by/4.0/ + +Source: http://sqlsunday.com/downloads/ + + + +DISCLAIMER: This script does not make any modifications to the database, but + may still not be suitable to run in a production environment. I + cannot assume any responsibility regarding the accuracy of the + output information, any performance impact on your server, or any + other consequence. This script will not show you every potential + security flaw in your database, you still need to apply common + sense. If your juristiction does not allow for this kind of + waiver/disclaimer, or if you do not accept these terms, you are + NOT allowed to store, distribute or use this code in any manner. + +*/ + + +------------------------------------------------------------------------------- + +DECLARE @principals TABLE ( + [sid] varbinary(85) NULL, + srv_member_of int NULL, + srv_principal_id int NULL, + loginName sysname NULL, + type_desc nvarchar(120) NOT NULL, + db_member_of int NULL, + db_principal_id int NULL, + userName sysname NULL, + inheritance varchar(1000) NULL, + UNIQUE CLUSTERED (srv_member_of, srv_principal_id, + db_member_of, db_principal_id) +); + +DECLARE @serverRoles TABLE ( + srv_principal_id int NOT NULL, + [permission_name] nvarchar(150) NOT NULL, + PRIMARY KEY CLUSTERED (srv_principal_id, [permission_name]) +); + +DECLARE @databaseRoles TABLE ( + db_principal_id int NOT NULL, + [permission_name] nvarchar(150) NOT NULL, + PRIMARY KEY CLUSTERED (db_principal_id, [permission_name]) +); + +--- Lists all users and roles. This CTE also recurses through database role +--- memberships, so each user will appear once for each database role that it +--- is a member of. +------------------------------------------------------------------------------- + +WITH db_principals (member_of_principal_id, principal_id, principal_name, + type_desc, [sid], inheritance) +AS (--- 1. Plain-vanilla users and groups: + SELECT principal_id, principal_id, [name], + type_desc, [sid], CAST(NULL AS varchar(100)) + FROM sys.database_principals + WHERE [type] IN ('A', 'G', 'R', 'S', 'U') AND + [name] NOT IN ('INFORMATION_SCHEMA', 'sys') + + UNION ALL + + --- 2. Every user and role is a member of "public": + SELECT 0, principal_id, [name], + type_desc, [sid], CAST('ROLE public' AS varchar(100)) + FROM sys.database_principals + WHERE [type] IN ('A', 'G', 'S', 'U') AND + [name] NOT IN ('INFORMATION_SCHEMA', 'sys') + + UNION ALL + + --- 3. Database role memberships: + SELECT drm.role_principal_id, dbp.principal_id, + dbp.[name], dbp.type_desc, dbp.[sid], + 'ROLE '+p.[name] + FROM sys.database_principals AS dbp + INNER JOIN sys.database_role_members AS drm ON + drm.member_principal_id=dbp.principal_id + INNER JOIN sys.database_principals AS p ON + drm.role_principal_id=p.principal_id), + + + +--- Server principals and server fixed role memberships: +------------------------------------------------------------------------------- + + srv_principals (member_of_principal_id, principal_id, + principal_name, type_desc, [sid], inheritance) +AS ( + --- 1. Logins + SELECT principal_id, principal_id, [name], + type_desc, [sid], CAST(NULL AS varchar(100)) + FROM sys.server_principals + WHERE [type] IN ('A', 'G', 'R', 'S', 'U') + + UNION ALL + + --- 2. Every user and group is a member of "public": + SELECT [public].principal_id, p.principal_id, p.[name], + p.type_desc, p.[sid], CAST('public' AS varchar(100)) + FROM sys.server_principals AS p + INNER JOIN sys.server_principals AS [public] ON + [public].[name]='public' + WHERE p.[type] IN ('A', 'G', 'S', 'U') + + UNION ALL + + --- 3. Recursion through fixed server role memberships: + SELECT srm.role_principal_id, sp.principal_id, + sp.[name], sp.type_desc, sp.[sid], + 'SERVER ROLE '+p.[name] COLLATE database_default + FROM sys.server_principals AS sp + INNER JOIN sys.server_role_members AS srm ON + srm.member_principal_id=sp.principal_id + INNER JOIN sys.server_principals AS p ON + srm.role_principal_id=p.principal_id), + + + +--- Merge server principals and database principals: +------------------------------------------------------------------------------- + + principals ([sid], srv_member_of, srv_principal_id, + loginName, type_desc, db_member_of, + db_principal_id, userName, inheritance) +AS ( + --- JOIN by db_member_of: + SELECT ISNULL(sp.[sid], dp.[sid]) AS [sid], + NULL AS srv_member_of, sp.principal_id AS srv_principal_id, + sp.principal_name COLLATE database_default AS loginName, + ISNULL(sp.type_desc, dp.type_desc) COLLATE database_default AS type_desc, + dp.member_of_principal_id AS db_member_of, + dp.principal_id AS db_principal_id, + dp.principal_name AS userName, + dp.inheritance + FROM srv_principals AS sp + FULL JOIN db_principals AS dp ON sp.[sid]=dp.[sid] + + UNION + + --- JOIN by srv_member_of: + SELECT ISNULL(sp.[sid], dp.[sid]) AS [sid], + sp.member_of_principal_id AS srv_member_of, + sp.principal_id AS srv_principal_id, + sp.principal_name COLLATE database_default AS loginName, + ISNULL(sp.type_desc, dp.type_desc) COLLATE database_default AS type_desc, + NULL AS db_member_of, + dp.principal_id AS db_principal_id, + dp.principal_name AS userName, + sp.inheritance + FROM srv_principals AS sp + FULL JOIN db_principals AS dp ON sp.[sid]=dp.[sid]) + +INSERT INTO @principals ([sid], srv_member_of, srv_principal_id, + loginName, type_desc, db_member_of, db_principal_id, + userName, inheritance) +SELECT [sid], srv_member_of, srv_principal_id, loginName, + type_desc, db_member_of, db_principal_id, userName, + inheritance +FROM principals; + +--- Built-in permissions for fixed server roles: +------------------------------------------------------------------------------- +INSERT INTO @serverRoles (srv_principal_id, [permission_name]) +SELECT sp.principal_id AS srv_principal_id, p.[permission_name] +FROM sys.server_principals AS sp +INNER JOIN sys.fn_builtin_permissions('SERVER') AS p ON + sp.[name]='bulkadmin' AND + p.[permission_name]='ADMINISTER BULK OPERATIONS' OR + + sp.[name]='dbcreator' AND + p.[permission_name]='CREATE ANY DATABASE' OR + + sp.[name]='diskadmin' AND + p.[permission_name]='ALTER RESOURCES' OR + + sp.[name]='processadmin' AND + p.[permission_name] IN ('ALTER ANY CONNECTION', + 'ALTER SERVER STATE') OR + sp.[name]='sysadmin' AND + p.[permission_name]='CONTROL SERVER' OR + + sp.[name]='securityadmin' AND + p.[permission_name]='ALTER ANY LOGIN' OR + + sp.[name]='serveradmin' AND + p.[permission_name] IN ('ALTER ANY ENDPOINT', 'ALTER RESOURCES', + 'ALTER SERVER STATE', 'ALTER SETTINGS', + 'SHUTDOWN', 'VIEW SERVER STATE') OR + + sp.[name]='setupadmin' AND + p.[permission_name]='ALTER ANY LINKED SERVER' +WHERE sp.[type]='R'; + + + +--- Built-in permissions for fixed database roles: +------------------------------------------------------------------------------- +INSERT INTO @databaseRoles (db_principal_id, [permission_name]) +SELECT dp.principal_id AS db_principal_id, p.[permission_name] +FROM sys.database_principals AS dp +INNER JOIN sys.fn_builtin_permissions('DATABASE') AS p ON + dp.[name]='db_accessadmin' AND + p.[permission_name] IN ('ALTER ANY USER', 'CREATE SCHEMA') OR + + dp.[name]='db_backupoperator' AND + p.[permission_name] IN ('BACKUP DATABASE', 'BACKUP LOG', 'CHECKPOINT') OR + + dp.[name] IN ('db_datareader', 'db_denydatareader') AND + p.[permission_name]='SELECT' OR + + dp.[name] IN ('db_datawriter', 'db_denydatawriter') AND + p.[permission_name] IN ('INSERT', 'DELETE', 'UPDATE') OR + + dp.[name]='db_ddladmin' AND + p.[permission_name] IN ('ALTER ANY ASSEMBLY', 'ALTER ANY ASYMMETRIC KEY', + 'ALTER ANY CERTIFICATE', 'ALTER ANY CONTRACT', + 'ALTER ANY DATABASE DDL TRIGGER', 'ALTER ANY DATABASE EVENT', + 'NOTIFICATION', 'ALTER ANY DATASPACE', 'ALTER ANY FULLTEXT CATALOG', + 'ALTER ANY MESSAGE TYPE', 'ALTER ANY REMOTE SERVICE BINDING', + 'ALTER ANY ROUTE', 'ALTER ANY SCHEMA', 'ALTER ANY SERVICE', + 'ALTER ANY SYMMETRIC KEY', 'CHECKPOINT', 'CREATE AGGREGATE', + 'CREATE DEFAULT', 'CREATE FUNCTION', 'CREATE PROCEDURE', + 'CREATE QUEUE', 'CREATE RULE', 'CREATE SYNONYM', 'CREATE TABLE', + 'CREATE TYPE', 'CREATE VIEW', 'CREATE XML SCHEMA COLLECTION', + 'REFERENCES') OR + + dp.[name]='db_owner' AND + p.[permission_name]='CONTROL' OR + + dp.[name]='db_securityadmin' AND + p.[permission_name] IN ('ALTER ANY APPLICATION ROLE', 'ALTER ANY ROLE', + 'CREATE SCHEMA', 'VIEW DEFINITION') + +WHERE dp.[type]='R' AND + dp.is_fixed_role=1; + + + + + + + + + + + + +--- Permissions lead to other implicit permissions, either +--- within the same object class or from one class to the +--- next: +------------------------------------------------------------------------------- +WITH permissionTree (class_desc, [permission_name], + implicit_class_desc, implicit_permission_name) +AS ( + --- Every type of permission there is: + SELECT class_desc COLLATE database_default, [permission_name], + class_desc, [permission_name] + FROM sys.fn_builtin_permissions(DEFAULT) + + UNION ALL + + --- Object/schema OWNER is the same thing as CONTROL: + SELECT 'SCHEMA', 'OWNER', 'OBJECT', 'CONTROL' UNION ALL + SELECT 'OBJECT', 'OWNER', 'OBJECT', 'CONTROL' + + UNION ALL + + --- Do not recurse from CONTROL SERVER, DATABASE or + --- SCHEMA, but jump directly to OBJECT: + SELECT 'SERVER', 'CONTROL SERVER', 'OBJECT', 'CONTROL SERVER*' UNION ALL + SELECT 'DATABASE', 'CONTROL', 'OBJECT', 'CONTROL DATABASE*' UNION ALL + SELECT 'SCHEMA', 'CONTROL', 'OBJECT', 'CONTROL SCHEMA*' + + UNION ALL + + --- If you can take ownership, it cascades to underlying objects: + SELECT DISTINCT class_desc COLLATE database_default, [permission_name], 'OBJECT', 'TAKE OWNERSHIP' + FROM sys.fn_builtin_permissions(DEFAULT) + WHERE [permission_name]='TAKE OWNERSHIP' AND + class_desc IN ('DATABASE', 'SCHEMA') + + UNION ALL + + --- .. and a recursion to find all implicit permissions + --- of all these permissions: + --- + --- Do not recurse CONTROL SERVER, CONTROL DATABASE or + --- CONTROL SCHEMA - those are handled separately. + SELECT tree.class_desc, tree.[permission_name], + fn.class_desc, fn.[permission_name] + FROM sys.fn_builtin_permissions(DEFAULT) AS fn + INNER JOIN permissionTree AS tree ON + + --- Scenario 1: Covering permission in same class + tree.implicit_class_desc=fn.class_desc AND + tree.implicit_permission_name=fn.covering_permission_name AND + NOT (fn.class_desc='SERVER' AND fn.covering_permission_name='CONTROL SERVER' OR + fn.class_desc='DATABASE' AND fn.covering_permission_name='CONTROL' OR + fn.class_desc='SCHEMA' AND fn.covering_permission_name='CONTROL' OR + fn.class_desc='OBJECT' AND fn.covering_permission_name='CONTROL') OR + + --- Scenario 2: Covering permission in parent class + tree.implicit_class_desc=fn.parent_class_desc AND + tree.implicit_permission_name=fn.parent_covering_permission_name AND + NOT (fn.parent_class_desc='SERVER' AND fn.parent_covering_permission_name='CONTROL SERVER' OR + fn.parent_class_desc='DATABASE' AND fn.parent_covering_permission_name='CONTROL' OR + fn.parent_class_desc='SCHEMA' AND fn.parent_covering_permission_name='CONTROL' OR + fn.parent_class_desc='OBJECT' AND fn.parent_covering_permission_name='CONTROL')), + + + + +--- A simple UNION ALL of database and server permissions: +------------------------------------------------------------------------------- + db_and_server_permissions (class, class_desc, major_id, + minor_id, db_principal_id, srv_principal_id, + [permission_name], [state], inheritance) +AS ( + --- Database permissions: + SELECT p.class, p.class_desc, p.major_id, p.minor_id, + u.db_principal_id, u.srv_principal_id, + p.[permission_name] COLLATE database_default, p.[state], u.inheritance + FROM sys.database_permissions AS p + INNER JOIN @principals AS u ON + p.grantee_principal_id=u.db_member_of + + UNION ALL + + --- Server-wide permissions: + SELECT p.class, p.class_desc, p.major_id, p.minor_id, + u.db_principal_id, u.srv_principal_id, + p.[permission_name], p.[state], u.inheritance + FROM sys.server_permissions AS p + INNER JOIN @principals AS u ON + p.grantee_principal_id=u.srv_member_of + + UNION ALL + + --- Fixed server role permissions: + SELECT DISTINCT 100, 'SERVER', 0, 0, pr.db_principal_id, + pr.srv_principal_id, sp.[permission_name], + 'G', 'SERVER ROLE '+pr.loginName + FROM @serverRoles AS sp + INNER JOIN @principals AS pr ON + sp.srv_principal_id=pr.srv_member_of + WHERE sp.srv_principal_id!=pr.srv_principal_id + + UNION ALL + + --- Fixed permissions for fixed database roles: + --- * db_owner has CONTROL DATABASE. + --- * db_datareader has SELECT on all user objects + --- * db_datawriter has INSERT, DELETE, UPDATE on all user objects + --- * db_deny* is equivalent to DENY on the previous two. + SELECT DISTINCT 0, 'DATABASE', 0, 0, pr.db_principal_id, + pr.srv_principal_id, dp.[permission_name], + (CASE WHEN pr.userName LIKE '%deny%' THEN 'D' + ELSE 'G' END), pr.userName + FROM @databaseRoles AS dp + INNER JOIN @principals AS pr ON + dp.db_principal_id=pr.db_member_of + WHERE dp.db_principal_id!=pr.db_principal_id + + UNION ALL + + --- Owning principals have CONTROL SCHEMA for owned schemas: + SELECT 3, 'SCHEMA', sch.[schema_id], 0, p.db_principal_id, + p.srv_principal_id, 'OWNER', 'G', p.inheritance + FROM @principals AS p + INNER JOIN sys.schemas AS sch ON + p.db_principal_id=sch.principal_id AND + p.db_principal_id=p.db_member_of + + UNION ALL + + --- Owning principals have CONTROL for owned objects: + SELECT 1, 'OBJECT_OR_COLUMN', obj.[object_id], 0, p.db_principal_id, + p.srv_principal_id, 'OWNER', 'G', p.inheritance + FROM @principals AS p + INNER JOIN sys.objects AS obj ON + p.db_principal_id=obj.principal_id AND + p.db_principal_id=p.db_member_of) + + + +--- Regular object-based permissions: +SELECT DISTINCT + ISNULL(sp.type_desc COLLATE database_default, + dp.type_desc) AS principalType, + ISNULL(sp.[name], '') AS serverLoginName, + ISNULL(dp.[name], '') AS databaseUserName, + obj.type_desc AS objectType, + sch.[name]+'.'+obj.[name]+ISNULL('('+col.[name]+')', '') AS objectName, + DENSE_RANK() OVER( + PARTITION BY ISNULL(sp.[sid], dp.[sid]), obj.[object_id], tree.implicit_permission_name + ORDER BY p.[state], p.inheritance + ) AS [row], + p.[state], + (CASE MIN((CASE p.[state] WHEN 'D' THEN 0 WHEN 'W' THEN 1 WHEN 'G' THEN 2 END)) + OVER ( + PARTITION BY ISNULL(sp.[sid], dp.[sid]), obj.[object_id], + ISNULL(NULLIF(p.minor_id, 0), col.column_id), + tree.implicit_permission_name) + WHEN 0 THEN 'DENY' + WHEN 1 THEN 'GRANT w/ delegation' + WHEN 2 THEN 'GRANT' + END) AS effectiveState, + tree.implicit_permission_name AS permission, + REPLACE(REPLACE(ISNULL(NULLIF(ISNULL(p.inheritance+ + (CASE p.[state] WHEN 'D' THEN ' denied ' ELSE ' has ' END), '')+ + p.[permission_name]+ISNULL(' on '+NULLIF(p.class_desc, 'OBJECT_OR_COLUMN'), ''), + tree.implicit_permission_name), ''), + ' has OWNER', ' is owner'), + 'OWNER on ', 'owner of ') AS inheritance, + (CASE WHEN tree.implicit_permission_name='TAKE OWNERSHIP' AND p.[state]!='D' THEN 'Can take ownership, which grants CONTROL' + WHEN tree.[permission_name] LIKE 'ALTER%SCHEMA' AND p.[state]!='D' THEN 'Can assign SCHEMA ownership to anyone' + WHEN tree.implicit_permission_name LIKE 'ALTER%SCHEMA' AND p.[state]!='D' THEN 'Can assign SCHEMA ownership to anyone' + ELSE '' END) AS elevationRisk + +FROM sys.database_principals AS dp +RIGHT JOIN db_and_server_permissions AS p ON dp.principal_id=p.db_principal_id +LEFT JOIN sys.server_principals AS sp ON sp.principal_id=p.srv_principal_id +INNER JOIN permissionTree AS tree ON + REPLACE(p.class_desc, 'OBJECT_OR_COLUMN', 'OBJECT')=tree.class_desc AND + p.[permission_name]=tree.[permission_name] AND tree.implicit_class_desc='OBJECT' +INNER JOIN sys.objects AS obj ON + p.class=1 AND p.major_id=obj.[object_id] OR + (p.class=3 AND p.major_id=obj.[schema_id] OR p.class IN (0, 100)) AND + obj.[type] NOT IN ('C', 'D', 'F', 'PK', 'R', 'TA', 'TR', 'UQ') +INNER JOIN sys.schemas AS sch ON obj.[schema_id]=sch.[schema_id] +LEFT JOIN sys.columns AS col ON + p.class=1 AND p.minor_id>0 AND + obj.[object_id]=col.[object_id] AND + col.column_id=p.minor_id +WHERE ISNULL(sp.[name], '') NOT IN ('sa', '##MS_PolicyTsqlExecutionLogin##') AND + --- Don't bother with service queues, system tables and internal tables: + obj.[type] NOT IN ('S', 'IT', 'SQ') AND ( + @singleUser IS NULL OR + @singleUser IN (p.inheritance, dp.[name], sp.[name])) AND ( + @singleObject IS NULL OR + @singleObject=sch.[name]+'.'+obj.[name]) + + + +UNION ALL + + + +--- ALTER ANY LOGIN may allow user to assign permissions to others: +SELECT DISTINCT + pr.type_desc AS principalType, + ISNULL(pr.loginName, ''), + ISNULL(pr.userName, ''), + '' AS objectType, + '' AS objectName, + DENSE_RANK() OVER ( + PARTITION BY pr.type_desc, pr.loginName, pr.userName + ORDER BY p.[state], p.inheritance) AS [row], + p.[state], + (CASE MIN((CASE p.[state] WHEN 'D' THEN 0 WHEN 'W' THEN 1 WHEN 'G' THEN 2 END)) + OVER (PARTITION BY pr.[sid], p.[permission_name]) + WHEN 0 THEN 'DENY' + WHEN 1 THEN 'GRANT w/ delegation' + WHEN 2 THEN 'GRANT' + END) AS effectiveState, + p.[permission_name] AS permission, + ISNULL(p.inheritance+ + ISNULL(' has '+ + NULLIF(p.[permission_name], tree.implicit_permission_name), + ''), '') AS inheritance, + 'Can elevate permissions on users' AS elevationRisk +FROM db_and_server_permissions AS p +INNER JOIN permissionTree AS tree ON p.[permission_name]=tree.implicit_permission_name +INNER JOIN @principals AS pr ON + p.db_principal_id=pr.db_member_of OR + p.srv_principal_id=pr.srv_member_of +WHERE p.[permission_name]='ALTER ANY LOGIN' AND ( + @singleUser IS NULL OR + @singleUser IN (pr.loginName, pr.userName)) + + + +UNION ALL + + + +--- IMPERSONATE permissions, on USER and LOGIN: +SELECT DISTINCT + pr.type_desc AS principalType, + ISNULL(pr.loginName, ''), + ISNULL(pr.userName, ''), + (CASE WHEN dbp.[name] IS NOT NULL THEN 'USER' + WHEN sp.[name] IS NOT NULL THEN 'LOGIN' + ELSE '?' END) AS objectType, + COALESCE('USER::'+dbp.[name], + 'LOGIN::'+sp.[name] COLLATE database_default, '') AS objectName, + DENSE_RANK() OVER ( + PARTITION BY pr.type_desc, pr.loginName, pr.userName + ORDER BY p.[state], p.inheritance) AS [row], + p.[state], + (CASE MIN((CASE p.[state] WHEN 'D' THEN 0 WHEN 'W' THEN 1 WHEN 'G' THEN 2 END)) + OVER (PARTITION BY pr.[sid], p.[permission_name]) + WHEN 0 THEN 'DENY' + WHEN 1 THEN 'GRANT w/ delegation' + WHEN 2 THEN 'GRANT' + END) AS effectiveState, + p.[permission_name] AS permission, + ISNULL(p.inheritance+' has IMPERSONATE on this principal', '') AS inheritance, + 'Can impersonate a user with potentially higher privileges' AS elevationRisk +FROM db_and_server_permissions AS p +INNER JOIN @principals AS pr ON + p.db_principal_id=pr.db_member_of OR + p.srv_principal_id=pr.srv_member_of +LEFT JOIN sys.database_principals AS dbp ON + p.class_desc='DATABASE_PRINCIPAL' AND + p.major_id=dbp.principal_id +LEFT JOIN sys.server_principals AS sp ON + p.class_desc='SERVER_PRINCIPAL' AND + p.major_id=sp.principal_id +WHERE p.[permission_name]='IMPERSONATE' AND ( + @singleUser IS NULL OR + @singleUser IN (pr.loginName, pr.userName, dbp.[name], sp.[name])) + + + +ORDER BY serverLoginName, databaseUserName, objectName, implicit_permission_name, [state], inheritance; diff --git a/Scripts/ShredDeadlockGraph.sql b/Scripts/ShredDeadlockGraph.sql new file mode 100644 index 00000000..8dcc57f1 --- /dev/null +++ b/Scripts/ShredDeadlockGraph.sql @@ -0,0 +1,260 @@ +/* +Original link: http://blog.waynesheffield.com/waye/code-library/deadlocks/shred-deadlock-graph/ +*/ +-- Shred Deadlock Graph + + +-- REFERENCES: +-- see http://msdn.microsoft.com/en-us/library/ms188246.aspx +-- (MS BOL Analyzing Deadlocks with SQL Server Profiler) +-- see http://msdn.microsoft.com/en-us/library/ms175519.aspx +-- (MS BOL Lock Modes) +-- http://blogs.msdn.com/bartd/archive/2006/09/09/Deadlock-Troubleshooting_2C00_-Part-1.aspx +-- http://blogs.msdn.com/b/bartd/archive/2008/09/24/today-s-annoyingly-unwieldy-term-intra-query-parallel-thread-deadlocks.aspx +-- Shred XML Deadlock Graphs, showing in tabular format as much information as possible. +-- Insert the XML Deadlock Graph into the @deadlock table. +-- Author: Wayne Sheffield +-- Modification History: +-- Version - Date - Description +-- 2 2010-10-10 - Added individual items in the Execution Stack node. +-- - Converted from using an XML variable to a table variable with an XML variable +-- - to allow seeing multiple deadlocks simultaneously. +-- 3 2010-10-11 - Added KPID to Process CTE and final results. +-- - Expanded LockMode to varchar(10). +-- 4 2011-05-11 - Added Waits. +-- 5 2011-05-15 - Revamped to minimize calls to the root of the deadlock xml nodes. +-- Modified InputBuffer to be XML. +-- Modified Execution Stack to return XML (vs. one row for each item, which +-- was causing duplication of other data). +-- 6 2012-02-01 - Add loading deadlock info from fn_trace_gettable. +-- - Get the InputBuffer from .query vs. trying to build XML. +-- - Add number of processes involved in the deadlock. +-- - Add the Query Statement being run. +-- 7 2012-09-01 - Corrected typo in ObjNode in both the Locks and Waits CTEs. +-- - Added DENSE_RANK for each process. +-- - Added support for exchangeEvent, threadpool, resourceWait events. +-- - (threadpool and resourceWait events are not tested - need to find a deadlock with them to test) +-- - Simplified xpath queries +-- 8 2012-09-04 - Greatly simplified locks and waits CTEs based on feedback from Mark Cowne. +-- - Added database_id and AssociatedObjectId per feedback from Gianluca Sartori. +-- - Combined the Locks and Waits CTEs into one. +-- 9 2012-10-26 - Handle deadlock graphs from the system_health xe (has a victim-list node for multi-victim deadlocks). +-- 10 2013-07-29 - Added ability to load in a deadlock file (.xdl). +-- - Added QueryStatement to output. +-- - Switched from clause order from "Locks JOIN Process" to "Process LEFT JOIN Locks" +-- 11 2013-12-26 - Read in deadlocks from the system_health XE file target +-- 12 2014-05-06 - Read in deadlocks from the system_health XE ring buffer +-- 13 2014-07-01 - Read in deadlocks from SQL Sentry + +DECLARE @deadlock TABLE ( + DeadlockID INT IDENTITY PRIMARY KEY CLUSTERED, + DeadlockGraph XML + ); +-- use below to load a deadlock trace file +/* +DECLARE @file VARCHAR(500); +SELECT @file = REVERSE(SUBSTRING(REVERSE([PATH]), CHARINDEX('\', REVERSE([path])), 260)) + N'LOG.trc' +FROM sys.traces +WHERE is_default = 1; -- get the system default trace, use different # for other active traces. + +-- or just SET @file = 'your trace file to load'; + +INSERT INTO @deadlock (DeadlockGraph) +SELECT TextData +FROM ::FN_TRACE_GETTABLE(@file, DEFAULT) +WHERE TextData LIKE '%'; +*/ + +-- or read in a deadlock file - doesn't have to have a "xdl" extension. +/* +INSERT INTO @deadlock (DeadlockGraph) +SELECT * +FROM OPENROWSET(BULK 'Deadlock.xdl', SINGLE_BLOB) UselessAlias; +*/ + + +-- or read in the deadlock from the system_health XE file target +/* +WITH cte1 AS +( +SELECT target_data = convert(XML, target_data) +FROM sys.dm_xe_session_targets t + JOIN sys.dm_xe_sessions s + ON t.event_session_address = s.address +WHERE t.target_name = 'event_file' +AND s.name = 'system_health' +), cte2 AS +( +SELECT [FileName] = FileEvent.FileTarget.value('@name', 'varchar(1000)') +FROM cte1 + CROSS APPLY cte1.target_data.nodes('//EventFileTarget/File') FileEvent(FileTarget) +), cte3 AS +( +SELECT event_data = CONVERT(XML, t2.event_data) +FROM cte2 + CROSS APPLY sys.fn_xe_file_target_read_file(cte2.[FileName], NULL, NULL, NULL) t2 +WHERE t2.object_name = 'xml_deadlock_report' +) +INSERT INTO @deadlock(DeadlockGraph) +SELECT Deadlock = Deadlock.Report.query('.') +FROM cte3 + CROSS APPLY cte3.event_data.nodes('//event/data/value/deadlock') Deadlock(Report); +*/ + +-- or read in the deadlock from the system_health XE ring buffer +/* +INSERT INTO @deadlock(DeadlockGraph) +SELECT --XEventData.XEvent.value('@timestamp', 'datetime') AS DeadlockDateTime, + CONVERT(XML, XEventData.XEvent.value('(data/value)[1]', 'varchar(max)')) AS DeadlockGraph +FROM (SELECT CAST(target_data AS XML) AS TargetData + FROM sys.dm_xe_session_targets st WITH (NOLOCK) + JOIN sys.dm_xe_sessions s WITH (NOLOCK) + ON s.address = st.event_session_address + WHERE name = 'system_health' + ) AS Data + CROSS APPLY TargetData.nodes('//RingBufferTarget/event') AS XEventData (XEvent) +WHERE XEventData.XEvent.value('@name', 'varchar(4000)') = 'xml_deadlock_report'; +*/ + +/* +-- or read in the deadlock from SQL Sentry deadlock collection +INSERT INTO @deadlock(DeadlockGraph) +SELECT deadlockxml +FROM dbo.PerformanceAnalysisTraceDeadlock +*/ + +-- use below to load individual deadlocks. +-- INSERT INTO @deadlock VALUES ('Put your deadlock here'); +-- Insert the deadlock XML in the above line! +-- Duplicate as necessary for additional graphs. + +WITH CTE AS +( +SELECT DeadlockID, + DeadlockGraph +FROM @deadlock +), Victims AS +( +SELECT ID = Victims.List.value('@id', 'varchar(50)') +FROM CTE + CROSS APPLY CTE.DeadlockGraph.nodes('//deadlock/victim-list/victimProcess') AS Victims (List) +), Locks AS +( +-- Merge all of the lock information together. +SELECT CTE.DeadlockID, + MainLock.Process.value('@id', 'varchar(100)') AS LockID, + OwnerList.Owner.value('@id', 'varchar(200)') AS LockProcessId, + REPLACE(MainLock.Process.value('local-name(.)', 'varchar(100)'), 'lock', '') AS LockEvent, + MainLock.Process.value('@objectname', 'sysname') AS ObjectName, + OwnerList.Owner.value('@mode', 'varchar(10)') AS LockMode, + MainLock.Process.value('@dbid', 'INTEGER') AS Database_id, + MainLock.Process.value('@associatedObjectId', 'BIGINT') AS AssociatedObjectId, + MainLock.Process.value('@WaitType', 'varchar(100)') AS WaitType, + WaiterList.Owner.value('@id', 'varchar(200)') AS WaitProcessId, + WaiterList.Owner.value('@mode', 'varchar(10)') AS WaitMode +FROM CTE + CROSS APPLY CTE.DeadlockGraph.nodes('//deadlock/resource-list') AS Lock (list) + CROSS APPLY Lock.list.nodes('*') AS MainLock (Process) + OUTER APPLY MainLock.Process.nodes('owner-list/owner') AS OwnerList (Owner) + CROSS APPLY MainLock.Process.nodes('waiter-list/waiter') AS WaiterList (Owner) +), Process AS +( +-- get the data from the process node +SELECT CTE.DeadlockID, + [Victim] = CONVERT(BIT, CASE WHEN Deadlock.Process.value('@id', 'varchar(50)') = ISNULL(Deadlock.Process.value('../../@victim', 'varchar(50)'), v.ID) + THEN 1 + ELSE 0 + END), + [LockMode] = Deadlock.Process.value('@lockMode', 'varchar(10)'), -- how is this different from in the resource-list section? + [ProcessID] = Process.ID, --Deadlock.Process.value('@id', 'varchar(50)'), + [KPID] = Deadlock.Process.value('@kpid', 'int'), -- kernel-process id / thread ID number + [SPID] = Deadlock.Process.value('@spid', 'int'), -- system process id (connection to sql) + [SBID] = Deadlock.Process.value('@sbid', 'int'), -- system batch id / request_id (a query that a SPID is running) + [ECID] = Deadlock.Process.value('@ecid', 'int'), -- execution context ID (a worker thread running part of a query) + [IsolationLevel] = Deadlock.Process.value('@isolationlevel', 'varchar(200)'), + [WaitResource] = Deadlock.Process.value('@waitresource', 'varchar(200)'), + [LogUsed] = Deadlock.Process.value('@logused', 'int'), + [ClientApp] = Deadlock.Process.value('@clientapp', 'varchar(100)'), + [HostName] = Deadlock.Process.value('@hostname', 'varchar(20)'), + [LoginName] = Deadlock.Process.value('@loginname', 'varchar(20)'), + [TransactionTime] = Deadlock.Process.value('@lasttranstarted', 'datetime'), + [BatchStarted] = Deadlock.Process.value('@lastbatchstarted', 'datetime'), + [BatchCompleted] = Deadlock.Process.value('@lastbatchcompleted', 'datetime'), + [InputBuffer] = Input.Buffer.query('.'), + CTE.[DeadlockGraph], + es.ExecutionStack, + [SQLHandle] = ExecStack.Stack.value('@sqlhandle', 'varchar(64)'), + [QueryStatement] = NULLIF(ExecStack.Stack.value('.', 'varchar(max)'), ''), + --[QueryStatement] = Execution.Frame.value('.', 'varchar(max)'), + [ProcessQty] = SUM(1) OVER (PARTITION BY CTE.DeadlockID), + [TranCount] = Deadlock.Process.value('@trancount', 'int') +FROM CTE + CROSS APPLY CTE.DeadlockGraph.nodes('//deadlock/process-list/process') AS Deadlock (Process) + CROSS APPLY (SELECT Deadlock.Process.value('@id', 'varchar(50)') ) AS Process (ID) + LEFT JOIN Victims v ON Process.ID = v.ID + CROSS APPLY Deadlock.Process.nodes('inputbuf') AS Input (Buffer) + CROSS APPLY Deadlock.Process.nodes('executionStack') AS Execution (Frame) +-- get the data from the executionStack node as XML + CROSS APPLY (SELECT ExecutionStack = (SELECT ProcNumber = ROW_NUMBER() + OVER (PARTITION BY CTE.DeadlockID, + Deadlock.Process.value('@id', 'varchar(50)'), + Execution.Stack.value('@procname', 'sysname'), + Execution.Stack.value('@code', 'varchar(MAX)') + ORDER BY (SELECT 1)), + ProcName = Execution.Stack.value('@procname', 'sysname'), + Line = Execution.Stack.value('@line', 'int'), + SQLHandle = Execution.Stack.value('@sqlhandle', 'varchar(64)'), + Code = LTRIM(RTRIM(Execution.Stack.value('.', 'varchar(MAX)'))) + FROM Execution.Frame.nodes('frame') AS Execution (Stack) + ORDER BY ProcNumber + FOR XML PATH('frame'), ROOT('executionStack'), TYPE ) + ) es + CROSS APPLY Execution.Frame.nodes('frame') AS ExecStack (Stack) +) + -- get the columns in the desired order +--SELECT * FROM Locks + +SELECT p.DeadlockID, + p.Victim, + p.ProcessQty, + ProcessNbr = DENSE_RANK() + OVER (PARTITION BY p.DeadlockId + ORDER BY p.ProcessID), + p.LockMode, + LockedObject = NULLIF(l.ObjectName, ''), + l.database_id, + l.AssociatedObjectId, + LockProcess = p.ProcessID, + p.KPID, + p.SPID, + p.SBID, + p.ECID, + p.TranCount, + l.LockEvent, + LockedMode = l.LockMode, + l.WaitProcessID, + l.WaitMode, + p.WaitResource, + l.WaitType, + p.IsolationLevel, + p.LogUsed, + p.ClientApp, + p.HostName, + p.LoginName, + p.TransactionTime, + p.BatchStarted, + p.BatchCompleted, + p.QueryStatement, + p.SQLHandle, + p.InputBuffer, + p.DeadlockGraph, + p.ExecutionStack +FROM Process p + LEFT JOIN Locks l + --JOIN Process p + ON p.DeadlockID = l.DeadlockID + AND p.ProcessID = l.LockProcessID +ORDER BY p.DeadlockId, + p.Victim DESC, + p.ProcessId; + \ No newline at end of file diff --git a/Scripts/ShredDeadlockGraph_Sample1.xml b/Scripts/ShredDeadlockGraph_Sample1.xml new file mode 100644 index 00000000..33856292 --- /dev/null +++ b/Scripts/ShredDeadlockGraph_Sample1.xml @@ -0,0 +1,53 @@ + + + + + + +UPDATE [dbo].[Tally] set [N] = [N]-@1 WHERE [N]=@2 + +UPDATE dbo.Tally SET N = N-1 WHERE N = 1 + +--ROLLBACK TRANSACTION + + +BEGIN TRANSACTION + +UPDATE dbo.Tally_sm SET N = N-2 WHERE N = 1 + +UPDATE dbo.Tally SET N = N-1 WHERE N = 1 + +--ROLLBACK TRANSACTION + + + + +UPDATE [dbo].[Tally_sm] set [N] = [N]-@1 WHERE [N]=@2 + +UPDATE dbo.Tally_sm SET N = N-2 WHERE N = 1 + + +UPDATE dbo.Tally_sm SET N = N-2 WHERE N = 1 + + + + + + + + + + + + + + + + + + + + + + + diff --git a/Scripts/ShredDeadlockGraph_Sample2.xml b/Scripts/ShredDeadlockGraph_Sample2.xml new file mode 100644 index 00000000..8612e4da --- /dev/null +++ b/Scripts/ShredDeadlockGraph_Sample2.xml @@ -0,0 +1,335 @@ + + + + + + + + + + + + + + + + +UPDATE [dbo].[junk] set [i] = @1 + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + +BEGIN TRANSACTION + +SELECT * FROM junk WITH (TABLOCK, HOLDLOCK); + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + + +UPDATE [dbo].[junk] set [i] = @1 + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + +BEGIN TRANSACTION + +SELECT * FROM junk WITH (TABLOCK, HOLDLOCK); + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + + +UPDATE [dbo].[junk] set [i] = @1 + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + +BEGIN TRANSACTION + +SELECT * FROM junk WITH (TABLOCK, HOLDLOCK); + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + + +UPDATE [dbo].[junk] set [i] = @1 + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + +BEGIN TRANSACTION + +SELECT * FROM junk WITH (TABLOCK, HOLDLOCK); + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + + +UPDATE [dbo].[junk] set [i] = @1 + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + +BEGIN TRANSACTION + +SELECT * FROM junk WITH (TABLOCK, HOLDLOCK); + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + + +UPDATE [dbo].[junk] set [i] = @1 + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + +BEGIN TRANSACTION + +SELECT * FROM junk WITH (TABLOCK, HOLDLOCK); + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + + +UPDATE [dbo].[junk] set [i] = @1 + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + +BEGIN TRANSACTION + +SELECT * FROM junk WITH (TABLOCK, HOLDLOCK); + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + + +UPDATE [dbo].[junk] set [i] = @1 + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + +BEGIN TRANSACTION + +SELECT * FROM junk WITH (TABLOCK, HOLDLOCK); + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + + +UPDATE [dbo].[junk] set [i] = @1 + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + +BEGIN TRANSACTION + +SELECT * FROM junk WITH (TABLOCK, HOLDLOCK); + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + + +UPDATE [dbo].[junk] set [i] = @1 + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + +BEGIN TRANSACTION + +SELECT * FROM junk WITH (TABLOCK, HOLDLOCK); + +UPDATE dbo.junk SET i=1; + +--ROLLBACK + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/Scripts/Shredding_XML_Data_From_Extended_Events.sql b/Scripts/Shredding_XML_Data_From_Extended_Events.sql new file mode 100644 index 00000000..20440f85 --- /dev/null +++ b/Scripts/Shredding_XML_Data_From_Extended_Events.sql @@ -0,0 +1,129 @@ +/* +Author: Max Vernon +Created Date: 2019-02-10 +Original link: https://itsalljustelectrons.blogspot.com/2019/02/shredding-xml-data-from-extended-events.html +Source link: https://github.com/ktaranov/sqlserver-kit/blob/master/Scripts/Shredding_XML_Data_From_Extended_Events.sql +Modified: 2019-02-14 by Konstantin Taranov +*/ + +USE master; +GO + +IF OBJECT_ID('XE_TSQL_TypeXref') IS NULL +EXEC('CREATE VIEW XE_TSQL_TypeXref AS SELECT 1 AS Alias'); +GO + +/* + This view attempts to map each Extended Events data type + to a TSQL data type. +*/ +ALTER VIEW dbo.XE_TSQL_TypeXref +AS +SELECT + o.name XE_type, o.description XE_type_description, + o.capabilities, o.capabilities_desc, o.type_size XE_type_size, + CASE type_name + --These mappings should be safe. + --They correspond almost directly to each other. + WHEN 'ansi_string' THEN 'VARCHAR(MAX)' + WHEN 'binary_data' THEN 'VARBINARY(MAX)' + WHEN 'boolean' THEN 'BIT' + WHEN 'char' THEN 'VARCHAR(MAX)' + WHEN 'guid' THEN 'UNIQUEIDENTIFIER' + WHEN 'int16' THEN 'SMALLINT' + WHEN 'int32' THEN 'INT' + WHEN 'int64' THEN 'BIGINT' + WHEN 'int8' THEN 'SMALLINT' + WHEN 'uint16' THEN 'INT' + WHEN 'uint32' THEN 'BIGINT' + WHEN 'uint64' THEN 'BIGINT' --possible overflow? + WHEN 'uint8' THEN 'SMALLINT' + WHEN 'unicode_string' THEN 'NVARCHAR(MAX)' + WHEN 'xml' THEN 'XML' + + --These mappings are based off of descriptions and type_size. + WHEN 'cpu_cycle' THEN 'BIGINT' + WHEN 'filetime' THEN 'BIGINT' + WHEN 'wchar' THEN 'NVARCHAR(2)' + + --How many places of precision? + WHEN 'float32' THEN 'NUMERIC(30, 4)' + WHEN 'float64' THEN 'NUMERIC(30, 4)' + + --These mappings? Not sure. Default to NVARCHAR(MAX). + WHEN 'activity_id' THEN 'NVARCHAR(MAX)' + WHEN 'activity_id_xfer' THEN 'NVARCHAR(MAX)' + WHEN 'ansi_string_ptr' THEN 'NVARCHAR(MAX)' + WHEN 'callstack' THEN 'NVARCHAR(MAX)' + WHEN 'guid_ptr' THEN 'NVARCHAR(MAX)' + WHEN 'null' THEN 'NVARCHAR(MAX)' + WHEN 'ptr' THEN 'NVARCHAR(MAX)' + WHEN 'unicode_string_ptr' THEN 'NVARCHAR(MAX)' + END AS SqlDataType +FROM sys.dm_xe_objects o +WHERE o.object_type = 'type'; +GO + + +DECLARE @XESessionName SYSNAME = N'system_health'; +DECLARE @Tsql NVARCHAR(MAX) = N''; + +;WITH AllSessionEventFields AS +( + --Unique Global Fields (Actions) across all events for the session. + SELECT DISTINCT sa.name EventField, 'action' AS XmlNodeName, + CASE WHEN x.SqlDataType IS NULL THEN 'text' ELSE 'value' END AS XmlSubNodeName, + 'Global Fields (Action)' AS FieldType, o.type_name XE_type, + COALESCE(x.SqlDataType, 'NVARCHAR(MAX)') AS SqlDataType + FROM sys.server_event_sessions s + JOIN sys.server_event_session_events se + ON se.event_session_id = s.event_session_id + JOIN sys.server_event_session_actions sa + ON sa.event_session_id = s.event_session_id + AND sa.event_id = se.event_id + JOIN sys.dm_xe_objects o ON o.name = sa.name AND o.object_type = 'action' + LEFT JOIN master.dbo.XE_TSQL_TypeXref x ON x.XE_type = o.type_name + WHERE s.name = @XESessionName + UNION + --Unique Event Fields across all events for the session. + SELECT DISTINCT c.name EventField, 'data' AS XmlNodeName, + CASE WHEN x.SqlDataType IS NULL THEN 'text' ELSE 'value' END AS XmlSubNodeName, + 'Event Fields' AS FieldType, c.type_name XE_type, + COALESCE(x.SqlDataType, 'NVARCHAR(MAX)') AS SqlDataType + FROM sys.server_event_sessions s + JOIN sys.server_event_session_events se + ON se.event_session_id = s.event_session_id + JOIN sys.dm_xe_object_columns c + ON c.object_name = se.name + AND c.column_type = 'data' + LEFT JOIN master.dbo.XE_TSQL_TypeXref x + ON x.XE_type = c.type_name + WHERE s.name = @XESessionName +) +SELECT @Tsql = @Tsql + CHAR(9) + + CASE + WHEN f.SqlDataType = 'XML' THEN + 'event_data.query (''(/event/' + f.XmlNodeName + '[@name=''''' + f.EventField + ''''']/' + + f.XmlSubNodeName + ')[1]'') AS [' + f.EventField + '],' + CHAR(13) + CHAR(10) + ELSE + 'event_data.value (''(/event/' + f.XmlNodeName + '[@name=''''' + f.EventField + ''''']/' + + f.XmlSubNodeName + ')[1]'', ''' + f.SqlDataType + ''') AS [' + f.EventField + '],' + CHAR(13) + CHAR(10) + END +FROM AllSessionEventFields f +ORDER BY f.EventField; + +SELECT @Tsql = LEFT(@Tsql, LEN(@Tsql) - 3); +SELECT @Tsql = ';WITH XEvents AS +( + SELECT object_name, CAST(event_data AS XML) AS event_data + FROM sys.fn_xe_file_target_read_file ( ''' + @XESessionName + '*.xel'', NULL, NULL, NULL ) +) +SELECT TOP(100) object_name, event_data,' + CHAR(13) + CHAR(10) + @Tsql + ' +FROM XEvents;'; + +/* +PRINT does not work - truncated @tsql variable, using XML trick instead +PRINT(@Tsql); +*/ +SELECT CAST('' AS XML); +EXECUTE sp_executesql @Tsql; diff --git a/Scripts/Simulate_Permissions_Logins_Change.sql b/Scripts/Simulate_Permissions_Logins_Change.sql new file mode 100644 index 00000000..b73c1839 --- /dev/null +++ b/Scripts/Simulate_Permissions_Logins_Change.sql @@ -0,0 +1,111 @@ +USE master; + --create a user + CREATE LOGIN HenryTheGreenEngine WITH PASSWORD = 'ePaCqshha7m4iyhj'; + GO + CREATE LOGIN PercyTheSmallEngine WITH PASSWORD = 'tRoUbl3som3Eng1n3s'; + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + CREATE SERVER ROLE Pirates AUTHORIZATION sysadmin; + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + ALTER SERVER ROLE Pirates ADD MEMBER PercyTheSmallEngine; + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + ALTER SERVER ROLE serveradmin ADD MEMBER Pirates; + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + ALTER SERVER ROLE setupadmin ADD MEMBER Pirates; + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + GRANT ALTER ON LOGIN::[NT Service\MSSQLSERVER] TO Pirates; + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + GRANT CONTROL ON LOGIN::[NT Service\MSSQLSERVER] TO Pirates; + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + GRANT IMPERSONATE ON LOGIN::[NT Service\MSSQLSERVER] TO Pirates; + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + GRANT VIEW DEFINITION ON LOGIN::[NT Service\MSSQLSERVER] TO Pirates; + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + GRANT ALTER ON LOGIN::[NT SERVICE\SQLWriter] TO Pirates; + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + GRANT CONTROL ON LOGIN::[NT SERVICE\SQLWriter] TO Pirates; + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + GRANT IMPERSONATE ON LOGIN::[NT SERVICE\SQLWriter] TO Pirates; + -- + USE AdventureWorks2016; + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + --greate user in adventureworks + CREATE USER dodgy FOR LOGIN HenryTheGreenEngine WITH DEFAULT_SCHEMA = dbo; + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + ALTER ROLE db_owner ADD MEMBER dodgy; + GO + CREATE TABLE silly (TheKey INT IDENTITY); + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + GRANT SELECT ON silly TO dodgy WITH GRANT OPTION; + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + REVOKE SELECT ON silly FROM dodgy CASCADE; + GO + CREATE USER TankEngineThomas WITHOUT LOGIN WITH DEFAULT_SCHEMA = dbo; + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + ALTER ROLE db_owner ADD MEMBER TankEngineThomas; + DROP USER TankEngineThomas; + GO + Declare @delay varchar(8)= '00:00:'+Right('0'+convert(varchar(2),convert(int,rAnd()*60)),2);WAITFOR DELAY @delay; + DROP USER dodgy; + DROP TABLE silly; + DROP LOGIN HenryTheGreenEngine; + DROP LOGIN PercyTheSmallEngine + GO + DECLARE @RoleName sysname; + SET @RoleName = N'Pirates'; + IF @RoleName <> N'public' + AND + ( + SELECT server_principals.is_fixed_role + FROM sys.server_principals + WHERE server_principals.name = @RoleName + ) = 0 + BEGIN + DECLARE @RoleMemberName sysname; + DECLARE Member_Cursor CURSOR FOR + SELECT server_principals.name + FROM sys.server_principals + WHERE server_principals.principal_id IN + ( + SELECT server_role_members.member_principal_id + FROM sys.server_role_members + WHERE server_role_members.role_principal_id IN + ( + SELECT principal_id FROM sys.server_principals WHERE name = @RoleName + AND type = 'R' + ) + ); + OPEN Member_Cursor; + FETCH NEXT FROM Member_Cursor + INTO @RoleMemberName; + DECLARE @SQL NVARCHAR(4000); + WHILE @@Fetch_Status = 0 + BEGIN + SET @SQL = + N'ALTER SERVER ROLE ' + QuoteName(@RoleName, '[') + N' DROP MEMBER ' + + QuoteName(@RoleMemberName, '['); + EXEC (@SQL); + FETCH NEXT FROM Member_Cursor + INTO @RoleMemberName; + END; + CLOSE Member_Cursor; + DEALLOCATE Member_Cursor; + END; + DROP SERVER ROLE Pirates; + GO + \ No newline at end of file diff --git a/Scripts/Sort_SQL_Server_Tables_into_similarly_sized_buckets.sql b/Scripts/Sort_SQL_Server_Tables_into_similarly_sized_buckets.sql new file mode 100644 index 00000000..ee01e0a7 --- /dev/null +++ b/Scripts/Sort_SQL_Server_Tables_into_similarly_sized_buckets.sql @@ -0,0 +1,133 @@ +/* +Author: Bill Fellows +Original link: http://billfellows.blogspot.com/2018/04/sort-sql-server-tables-into-similarly_5.html +*/ + +SET NOCOUNT ON; +DECLARE + @bucketCount tinyint = 6; + +IF OBJECT_ID('tempdb..#work') IS NOT NULL +BEGIN + DROP TABLE #work; +END + +CREATE TABLE #work ( + _row int IDENTITY(1, 1) NOT NULL, + [SchemaName] sysname, + [TableName] sysname, + [RowsCounted] bigint NOT NULL, + GroupNumber int NOT NULL, + moved tinyint NOT NULL, + PRIMARY KEY CLUSTERED ([RowsCounted], _row) +); + +WITH cte AS ( +SELECT B.RowsCounted +, B.SchemaName +, B.TableName + FROM + ( + SELECT + s.[Name] as [SchemaName] + , t.[name] as [TableName] + , SUM(p.rows) as [RowsCounted] + FROM + sys.schemas s + LEFT OUTER JOIN + sys.tables t + ON s.schema_id = t.schema_id + LEFT OUTER JOIN + sys.partitions p + ON t.object_id = p.object_id + LEFT OUTER JOIN + sys.allocation_units a + ON p.partition_id = a.container_id + WHERE + p.index_id IN (0,1) + AND p.rows IS NOT NULL + AND a.type = 1 + GROUP BY + s.[Name] + , t.[name] + ) B +); + +INSERT INTO #work ([RowsCounted], SchemaName, TableName, GroupNumber, moved) +SELECT [RowsCounted], SchemaName, TableName, ROW_NUMBER() OVER (ORDER BY [RowsCounted]) % @bucketCount AS GroupNumber, 0 +FROM cte; + +WHILE (@@ROWCOUNT!=0) +WITH cte AS +( + SELECT + * + , SUM(RowsCounted) OVER (PARTITION BY GroupNumber) - SUM(RowsCounted) OVER (PARTITION BY (SELECT NULL)) / @bucketCount AS _GroupNumberoffset + FROM + #work +) +UPDATE + w +SET + w.GroupNumber = (CASE w._row + WHEN x._pos_row THEN x._neg_GroupNumber + ELSE x._pos_GroupNumber + END + ) +, w.moved = w.moved + 1 +FROM + #work AS w + INNER JOIN + ( + SELECT TOP 1 + pos._row AS _pos_row + , pos.GroupNumber AS _pos_GroupNumber + , neg._row AS _neg_row + , neg.GroupNumber AS _neg_GroupNumber + FROM + cte AS pos + INNER JOIN + cte AS neg + ON pos._GroupNumberoffset > 0 + AND neg._GroupNumberoffset < 0 + AND + --- To prevent infinite recursion: + pos.moved < @bucketCount + AND neg.moved < @bucketCount + WHERE --- must improve positive side's offset: + ABS(pos._GroupNumberoffset - pos.RowsCounted + neg.RowsCounted) <= pos._GroupNumberoffset + AND + --- must improve negative side's offset: + ABS(neg._GroupNumberoffset - neg.RowsCounted + pos.RowsCounted) <= ABS(neg._GroupNumberoffset) + --- Largest changes first: + ORDER BY + ABS(pos.RowsCounted - neg.RowsCounted) DESC + ) AS x + ON w._row IN + ( + x._pos_row + , x._neg_row + ); + +SELECT + W.GroupNumber +, COUNT_BIG(1) AS TotalTables +, SUM(W.RowsCounted) AS GroupTotalRows +FROM + #work AS W +GROUP BY + W.GroupNumber +ORDER BY + W.GroupNumber; + +SELECT + W.GroupNumber +, W.SchemaName +, W.TableName +, W.RowsCounted +, COUNT_BIG(1) OVER (PARTITION BY W.GroupNumber ORDER BY (SELECT NULL)) AS TotalTables +, SUM(W.RowsCounted) OVER (PARTITION BY W.GroupNumber ORDER BY (SELECT NULL)) AS GroupTotalRows +FROM + #work AS W +ORDER BY + W.GroupNumber; diff --git a/Scripts/SplitFileGroup.sql b/Scripts/SplitFileGroup.sql new file mode 100644 index 00000000..4534ba50 --- /dev/null +++ b/Scripts/SplitFileGroup.sql @@ -0,0 +1,192 @@ +/*===================================================================== +AUTHOR: trayce@seekwellandprosper.com +FILENAME: SplitFileGroup.sql +VERSION: 1.1 + + THIS SCRIPT USES the CTRL-SHIFT-M macro substitution technique to set several variables: + + DBName -- The database in which the filegroup exists that should be split. + FileGroupName -- The name of the filegroup to be split (default = Primary) + FileCountAfterSplit -- The total number of files in the filegroup after the split (default = 4) + MaxFileSize -- The maximum filesize of the files after the split (default=NULL which equals "UNLIMITED") + AutoGrowthSize -- The size for autogrowth after the split is complete (default NULL = 100MB) + + +OBJECTS CREATED +================ + Additional data files added to the specified filegroup. + The number of data files added will be ("FileCountAfterSplit" - 1) + The additional data files are added to same path where the existing data file resides. + + +DESCRIPTION OF ALGORITHM +========================= +1) use the same path as the existing file. +2) get the size of the current file +3) set the filesize for each of the new files as: (CurrentFileSize/FileCountAfterSplit) + 1MB +4) add (FileCountAfterSplit-1) new files to filegroup + set the Autogrowth value to 0 (so the files cannot autogrow) + set the MAXSIZE = to the value supplied in template variable, or UNLIMITED if "NULL" was used + the "logical" name of each new file is the original file's logical name with an "_x" added to it, where + x = the number of the added file -- starting with "2" + the "physical" name of each new file in the original file's phyical name with an "_x" appended to the filename + where x = the number of the added file -- starting with "2". + the "extension" for the physical files added will be "ndf" +5) issue a DBCC SHRINKFILE with the EMPTYFILE option + Ignore the error "2556". This is expected because not everything can be emptied from the origianl data file. + This is done intentionally so that after the original file is shrunk, all data files will be the same size. +6) iterate through all data files in the filegroup, setting MAXSIZE and FILEGROWTH to the values + provided in the template variables. Defaults being UNLIMITED and 100MB respectively +7) issue a DBCC SHRINKFILE, specifying the new filesize + + + +NOTES: +====== +This script is an example script only. It is designed to show one technique on how +to modify a filegroup with a single data to have multiple datafiles and move the +data from the original file into the new files, so that the result is a filegroup balanced +fairly evenly among all of the data files. + +This script should not be run in production environments. It is provided for illustrative purposes only +and is provided "AS IS" with no warranties. + +This script is designed to split a filegroup that only contains a single datafile. +This script DOES NOT split the PRIMARY filegroup (since some objects can't be moved) + (note--- If you really "need" to split the primary filegroup original datafile + you can do it with the technique in this script/article. Just realize + that because some objects can't be moved, the space allocation afterward my not be + exactly even or uniform). + +This script DOES NOT check for adquate file space. +This script DOES NOT do any significant error checking. +This script DOES NOT attempt to handle any "undo" or "rollback" process should an error occur. +If the MaxFileSize specified is less than the calculated new size, the MaxFileSize will be set + to the calculated new size + 10MB. +Depending on the exact amount of used space in the original file, and the number of files + specified to split into, the amount of used space in the original file may be somewhat + less or more than the other files. This script is not designed to ensure that every + file is of exact equal size and used space amounts. All files should be close in + used space though -- if not, please send me an email - I would like to discuss. + + +REVISION HISTORY: +================= +20170208 1.1 Initial Release +======================================================================*/ + +SET NOCOUNT ON +USE [] +GO + +DECLARE @FileGroupName sysname =''; +DECLARE @numfiles INT = ; +DECLARE @maxsizeMB INT = ; +DECLARE @maxgrowthMB INT= ; + +DECLARE @maxsizeMBText VARCHAR(max) = 'UNLIMITED'; +DECLARE @maxgrowthMBText VARCHAR(max) = '100MB'; +DECLARE @crlf CHAR(2) = CHAR(13)+CHAR(10); +DECLARE @sql VARCHAR(max); +DECLARE @loopcntr INT; +DECLARE @FGFileCount INT; +DECLARE @FSizeMB DECIMAL(19,2), @LogicalName sysname, @PhysicalName sysname, @MaxSize INT; +DECLARE @NewFSizeMB INT, @NewLogicalName sysname, @NewPhysicalName sysname; + +IF @maxgrowthMB IS NOT NULL + SELECT @maxgrowthMBText = CAST(@maxgrowthMB as varchar(max)) + 'MB' + +SELECT @FGFileCount = COUNT(*) FROM sys.database_files df + INNER JOIN sys.filegroups fg on df.data_space_id = fg.data_space_id + WHERE fg.name = @FileGroupName + +IF ((@FileGroupName = 'Primary')) BEGIN + RAISERROR('SplitFileGroup.sql message: This script does not split the primary filegroup. Aborting.', 10,1) + RETURN +END +IF ((@FGFileCount IS NULL) or @FGFileCount = 0) BEGIN + RAISERROR('SplitFileGroup.sql message: Filegroup [%s] does not exist. Aborting.', 10,1, @FileGroupName) + RETURN +END ELSE IF (@FGFileCount > 1) BEGIN + RAISERROR('SplitFileGroup.sql message: The procedure is designed for splitting a filegroup with only 1 file in it. Filegroup [%s] contains <%d> files. Aborting.', 10,1, @FileGroupName, @FGFileCount) + RETURN +END + +--if we get here, we have only 1 file in the filegroup --we will proceed + +--get the used amount of space and other info from current file in filegroup +SELECT @FSizeMB = (SUM(au.[total_pages])/(1024.*1024))*8192, + @NewFSizeMB = CAST(1+((SUM(au.[total_pages])/(1024.*1024))*8192)/@numfiles as INT) + FROM sys.allocation_units au + INNER JOIN sys.filegroups fg on fg.data_space_id = au.data_space_id + WHERE fg.name = @FileGroupName + +IF @maxsizeMB IS NOT NULL BEGIN + IF @maxSizeMB < @NewFSizeMB BEGIN + SELECT @maxSizeMB = @NewFSizeMB + 10 + END + SELECT @maxsizeMBText = CAST(@maxsizeMB as varchar(max)) + 'MB' +END + +SELECT + @LogicalName = df.[name], + @PhysicalName = df.[physical_name] + FROM sys.database_files df + INNER JOIN sys.filegroups fg on df.data_space_id = fg.data_space_id + WHERE fg.name = @FileGroupName + +--add (@numfiles-1) files to file group +SELECT @loopcntr = 2; +WHILE @loopcntr <= @numfiles BEGIN + SELECT @NewLogicalName = @LogicalName + '_' + CAST(@loopcntr as varchar(5)) + SELECT @NewPhysicalName = REPLACE(@PhysicalName , RIGHT(@PhysicalName,4), '_' + CAST(@loopcntr as varchar(5))+'.ndf') + SELECT @sql = 'ALTER DATABASE [' + DB_NAME() + '] ADD FILE ('+ @crlf + + 'NAME = ' + @NewLogicalName + ',' + @crlf + + 'FILENAME = ' + QUOTENAME(@NewPhysicalName, '''') + ',' + @crlf + + 'SIZE = ' + CAST(@NewFSizeMB as VARCHAR(max)) + 'MB,' + @crlf + + 'MAXSIZE = ' + CAST(@NewFSizeMB as VARCHAR(max)) + 'MB,' + @crlf + + 'FILEGROWTH = 0MB) TO FILEGROUP ' + QUOTENAME(@FileGroupName) +';' + @crlf + @crlf + PRINT @sql + exec (@sql) + SELECT @loopcntr += 1 +END + +--empty the original file -- which will move data into the new files +SELECT @sql = 'BEGIN TRY' + @crlf + + 'DBCC SHRINKFILE (' + @LogicalName + ', EMPTYFILE)' + @crlf + + 'END TRY' + @crlf + + 'BEGIN CATCH' + @crlf + + ' IF ERROR_NUMBER() <> 2556 BEGIN' + @crlf + + ' SELECT ERROR_NUMBER(), ERROR_MESSAGE()' + @crlf + + ' RAISERROR (''Severe error moving data into new files. MANUAL cleanup necessary. Terminating connection...'', 19, 1) WITH LOG' + @crlf + + ' END' + @crlf + + 'END CATCH' + @crlf + @crlf +PRINT @SQL +exec (@sql) + +--set all files to have a MAXSIZE and enable autogrowth +SELECT @loopcntr = 1; +WHILE @loopcntr <= @numfiles BEGIN + SELECT @NewLogicalName = CASE @loopcntr WHEN 1 then @LogicalName ELSE @LogicalName + '_' + CAST(@loopcntr as varchar(5)) END + SELECT @sql = 'ALTER DATABASE [' + DB_NAME() + '] MODIFY FILE ('+ @crlf + + 'NAME = ' + @NewLogicalName + ',' + @crlf + + 'MAXSIZE = ' + @maxsizeMBText + ',' + @crlf + + 'FILEGROWTH = ' + @maxgrowthMBText + ');' + @crlf + @crlf + PRINT @sql + exec (@sql) + SELECT @loopcntr += 1 +END + +--shrink the original file to match the new files size +SELECT @sql = 'BEGIN TRY' + @crlf + + 'DBCC SHRINKFILE (' + @LogicalName + ', ' + CAST(@NewFSizeMB as varchar(max))+ ')' + @crlf + + 'END TRY' + @crlf + + 'BEGIN CATCH' + @crlf + + ' IF ERROR_NUMBER() <> 2556 BEGIN' + @crlf + + ' SELECT ERROR_NUMBER(), ERROR_MESSAGE()' + @crlf + + ' RAISERROR (''Severe error moving data into new files. MANUAL cleanup necessary. Terminating connection...'', 19, 1) WITH LOG' + @crlf + + ' END' + @crlf + + 'END CATCH' + @crlf +PRINT @SQL +exec (@sql) + diff --git a/Scripts/Stop_long-running_SQL_Server_Agent_Jobs.sql b/Scripts/Stop_long-running_SQL_Server_Agent_Jobs.sql new file mode 100644 index 00000000..fa88c6ee --- /dev/null +++ b/Scripts/Stop_long-running_SQL_Server_Agent_Jobs.sql @@ -0,0 +1,76 @@ +/* +Author: Allen McGuire +Source link: http://allen-mcguire.blogspot.ru/2017/08/monitor-and-stop-long-running-sql.html +*/ + +DECLARE @Duration_secs INT; +DECLARE @JobName SYSNAME; + +DECLARE @LongRunningJobs TABLE( + DurationSecs INT NOT NULL + , JobName SYSNAME NOT NULL + , TSQLStatement NVARCHAR(300) NOT NULL +); + +INSERT INTO @LongRunningJobs(DurationSecs, JobName, TSQLStatement) +SELECT DATEDIFF(ss, ja.start_execution_date, GETDATE()) AS Duration_secs + , jobs.name AS JobName + , 'EXEC msdb.dbo.sp_stop_job N''' + jobs.name + '''' AS TSQLStatement +FROM msdb.dbo.sysjobs jobs + LEFT JOIN msdb.dbo.sysjobactivity ja ON ja.job_id = jobs.job_id + AND ja.start_execution_date IS NOT NULL +WHERE -- jobs.name = 'Distribution clean up: distribution' + -- AND + stop_execution_date IS NULL; + +SELECT * FROM @LongRunningJobs; + +/* +USE [msdb] +GO +DECLARE @jobId BINARY(16) +EXEC msdb.dbo.sp_add_job @job_name=N'Test', + @enabled=1, + @notify_level_eventlog=0, + @notify_level_email=2, + @notify_level_page=2, + @delete_level=0, + @category_name=N'[Uncategorized (Local)]', + @owner_login_name=N'sa', @job_id = @jobId OUTPUT +select @jobId +GO +EXEC msdb.dbo.sp_add_jobserver @job_name=N'Test', @server_name = @@SERVERNAME; +GO +USE [msdb] +GO +EXEC msdb.dbo.sp_add_jobstep @job_name=N'Test', @step_name=N'wait_20_seconds', + @step_id=1, + @cmdexec_success_code=0, + @on_success_action=1, + @on_fail_action=2, + @retry_attempts=0, + @retry_interval=0, + @os_run_priority=0, @subsystem=N'TSQL', + @command=N'WAITFOR DELAY ''00:00:59'';', + @database_name=N'master', + @flags=0 +GO + +DECLARE @schedule_id int +EXEC msdb.dbo.sp_add_jobschedule @job_id=N'f0cc44dc-4718-4b66-8d47-bd6f86c9c513', @name=N'Test_schedule_every_minute', + @enabled=1, + @freq_type=4, + @freq_interval=1, + @freq_subday_type=4, + @freq_subday_interval=1, + @freq_relative_interval=0, + @freq_recurrence_factor=1, + @active_start_date=20170904, + @active_end_date=99991231, + @active_start_time=0, + @active_end_time=235959, @schedule_id = @schedule_id OUTPUT +SELECT @schedule_id; +GO + +EXEC msdb.dbo.sp_delete_job @job_name = N'Test'; +*/ \ No newline at end of file diff --git a/Scripts/Suspect_Database_Pages.sql b/Scripts/Suspect_Database_Pages.sql new file mode 100644 index 00000000..7d69870b --- /dev/null +++ b/Scripts/Suspect_Database_Pages.sql @@ -0,0 +1,29 @@ +/* +Author: Ben Snaidero +Original link: https://www.mssqltips.com/sqlservertip/4166/automate-alerting-for-sql-server-suspect-database-pages/ +*/ + +SELECT sp.database_id AS DatabaseID + , d.name AS DatabaseName + , sp.file_id AS FileID + , mf.physical_name AS FileName + , sp.page_id AS PageID + , CASE + WHEN sp.event_type = 1 + THEN '823 or 824 error other than a bad checksum or a torn page' + WHEN sp.event_type = 2 + THEN 'Bad checksum' + WHEN sp.event_type = 3 + THEN 'Torn Page' + WHEN sp.event_type = 4 + THEN 'Restored (The page was restored after it was marked bad)' + WHEN sp.event_type = 5 + THEN 'Repaired (DBCC repaired the page)' + WHEN sp.event_type = 7 + THEN 'Deallocated by DBCC' + END AS EventDesc + , sp.error_count AS ErrorCount + , sp.last_update_date AS LastUpdated +FROM msdb.dbo.suspect_pages AS sp +INNER JOIN sys.databases AS d ON d.database_id = sp.database_id +INNER JOIN sys.master_files AS mf ON mf.database_id = sp.database_id AND mf.file_id = sp.file_id; diff --git a/Scripts/Table_Parameters.sql b/Scripts/Table_Parameters.sql new file mode 100644 index 00000000..0e7ffbd8 --- /dev/null +++ b/Scripts/Table_Parameters.sql @@ -0,0 +1,250 @@ +/* +Author: Konstantin Taranov +Source: https://github.com/ktaranov/sqlserver-kit/blob/master/Scripts/Table_Parameters.sql +*/ + +DECLARE @databaseName SYSNAME = N'AdventureWorks2017'; +DECLARE @schemaName SYSNAME = N'Person'; +DECLARE @tableName SYSNAME = N'CountryRegion'; +DECLARE @_msparam_0 INT = 2; +DECLARE @TROW50000 NVARCHAR(1000) = N'Table ' + @schemaName + '.' + @tableName+ N' is not exists in database ' + QUOTENAME(@databaseName) + N'!!!'; + +IF OBJECT_ID(CASE WHEN @databaseName <> '' THEN QUOTENAME(@databaseName) + '.' ELSE '' END + QUOTENAME(@schemaName) + '.' + QUOTENAME(@tableName)) IS NULL +THROW 50000, @TROW50000, 1; + +IF LEFT(@databaseName, 1) = N'[' OR + LEFT(@tableName, 1) = N'[' OR + LEFT(@schemaName, 1) = N'[' +THROW 50001, 'Please do not use quotes in Databse, Table or Schema names! In the procedure it is alredy done with QUOTENAME function.', 1; + + +CREATE TABLE #tmp_extended_remote_data_archive_tables( + object_id INT NOT NULL + ,remote_table_name NVARCHAR(128) NULL + ,filter_predicate NVARCHAR(max) NULL + ,migration_state TINYINT NULL + ); + +IF EXISTS(SELECT 1 FROM master.sys.syscolumns WHERE Name = N'remote_data_archive_migration_state' AND ID = Object_ID(N'sys.tables')) + EXECUTE(N'INSERT INTO #tmp_extended_remote_data_archive_tables SELECT rdat.object_id, rdat.remote_table_name, + SUBSTRING(rdat.filter_predicate, 2, LEN(rdat.filter_predicate) - 2) as filter_predicate, + CASE + WHEN tbl.remote_data_archive_migration_state_desc = N''PAUSED'' THEN 1 + WHEN tbl.remote_data_archive_migration_state_desc = N''OUTBOUND'' THEN 3 + WHEN tbl.remote_data_archive_migration_state_desc = N''INBOUND'' THEN 4 + WHEN tbl.remote_data_archive_migration_state_desc = N''DISABLED'' THEN 0 + ELSE 0 + END AS migration_state + FROM sys.tables tbl LEFT JOIN sys.remote_data_archive_tables rdat ON rdat.object_id = tbl.object_id + WHERE rdat.object_id IS NOT NULL') +ELSE + EXECUTE(N'INSERT INTO #tmp_extended_remote_data_archive_tables SELECT rdat.object_id, rdat.remote_table_name, + SUBSTRING(rdat.filter_predicate, 2, LEN(rdat.filter_predicate) - 2) as filter_predicate, + CASE + WHEN rdat.is_migration_paused = 1 AND rdat.migration_direction_desc = N''OUTBOUND'' THEN 1 + WHEN rdat.is_migration_paused = 1 AND rdat.migration_direction_desc = N''INBOUND'' THEN 2 + WHEN rdat.is_migration_paused = 0 AND rdat.migration_direction_desc = N''OUTBOUND'' THEN 3 + WHEN rdat.is_migration_paused = 0 AND rdat.migration_direction_desc = N''INBOUND'' THEN 4 + ELSE 0 + END AS migration_state + FROM sys.tables tbl LEFT JOIN sys.remote_data_archive_tables rdat ON rdat.object_id = tbl.object_id + WHERE rdat.object_id IS NOT NULL'); + +SELECT tbl.NAME + AS + [Name] + ,tbl.object_id + AS [ID] + ,tbl.create_date + AS [CreateDate] + ,tbl.modify_date + AS [DateLastModified] + ,ISNULL(stbl.NAME, N'') AS [Owner] + ,CAST(CASE + WHEN tbl.principal_id IS NULL THEN 1 + ELSE 0 + END AS BIT) AS [IsSchemaOwned] + ,SCHEMA_NAME(tbl.schema_id) + AS [Schema] + ,CAST(CASE + WHEN tbl.is_ms_shipped = 1 THEN 1 + WHEN (SELECT major_id + FROM sys.extended_properties + WHERE major_id = tbl.object_id + AND minor_id = 0 + AND class = 1 + AND NAME = N'microsoft_database_tools_support') IS + NOT NULL + THEN + 1 + ELSE 0 + END AS BIT) AS [IsSystemObject] + ,CAST(Objectproperty(tbl.object_id, N'HasAfterTrigger') AS BIT) AS [HasAfterTrigger] + ,CAST(Objectproperty(tbl.object_id, N'HasInsertTrigger') AS BIT) AS [HasInsertTrigger] + ,CAST(Objectproperty(tbl.object_id, N'HasDeleteTrigger') AS BIT) AS [HasDeleteTrigger] + ,CAST(Objectproperty(tbl.object_id, N'HasInsteadOfTrigger') AS BIT) AS [HasInsteadOfTrigger] + ,CAST(Objectproperty(tbl.object_id, N'HasUpdateTrigger') AS BIT) AS [HasUpdateTrigger] + ,CAST(Objectproperty(tbl.object_id, N'IsIndexed') AS BIT) AS [HasIndex] + ,CAST(Objectproperty(tbl.object_id, N'IsIndexable') AS BIT) AS [IsIndexable] + ,CAST(CASE idx.index_id WHEN 1 THEN 1 ELSE 0 END AS BIT) AS [HasClusteredIndex] + ,CAST(CASE idx.type WHEN 0 THEN 1 ELSE 0 END AS BIT) AS [HasHeapIndex] + ,tbl.uses_ansi_nulls AS [AnsiNullsStatus] + ,CAST(ISNULL(Objectproperty(tbl.object_id, N'IsQuotedIdentOn'), 0) AS BIT) AS [QuotedIdentifierStatus] + ,CAST(0 AS BIT) + AS [FakeSystemTable] + ,ISNULL(dstext.NAME, N'') + AS [TextFileGroup] + ,CAST(tbl.is_memory_optimized AS BIT) + AS [IsMemoryOptimized] + ,CASE + WHEN ( tbl.durability = 1 ) THEN 0 + ELSE 1 + END + AS [Durability] + ,tbl.is_replicated + AS [Replicated] + ,tbl.lock_escalation + AS [LockEscalation] + ,CAST(CASE + WHEN ctt.object_id IS NULL THEN 0 + ELSE 1 + END AS BIT) + AS [ChangeTrackingEnabled] + ,CAST(ISNULL(ctt.is_track_columns_updated_on, 0) AS BIT) + AS + [TrackColumnsUpdatedEnabled] + ,tbl.is_filetable + AS [IsFileTable] + ,ISNULL(ft.directory_name, N'') + AS [FileTableDirectoryName] + ,ISNULL(ft.filename_collation_name, N'') + AS [FileTableNameColumnCollation] + ,CAST(ISNULL(ft.is_enabled, 0) AS BIT) + AS [FileTableNamespaceEnabled] + ,CASE + WHEN 'PS' = dsidx.type THEN dsidx.NAME + ELSE N'' + END + AS [PartitionScheme] + ,CAST(CASE + WHEN 'PS' = dsidx.type THEN 1 + ELSE 0 + END AS BIT) + AS [IsPartitioned] + ,CASE + WHEN 'FD' = dstbl.type THEN dstbl.NAME + ELSE N'' + END + AS [FileStreamFileGroup] + ,CASE + WHEN 'PS' = dstbl.type THEN dstbl.NAME + ELSE N'' + END + AS [FileStreamPartitionScheme] + ,CAST(CASE idx.type + WHEN 5 THEN 1 + ELSE 0 + END AS BIT) + AS [HasClusteredColumnStoreIndex] + ,CAST(CASE tbl.temporal_type + WHEN 2 THEN 1 + ELSE 0 + END AS BIT) + AS [IsSystemVersioned] + ,CAST(ISNULL(historyTable.NAME, N'') AS SYSNAME) + AS [HistoryTableName] + ,CAST(ISNULL(SCHEMA_NAME(historyTable.schema_id), N'') AS SYSNAME) + AS + [HistoryTableSchema] + ,CAST(ISNULL(historyTable.object_id, 0) AS INT) + AS [HistoryTableID] + ,CAST(CASE + WHEN periods.start_column_id IS NULL THEN 0 + ELSE 1 + END AS BIT) + AS [HasSystemTimePeriod] + ,CAST(ISNULL((SELECT cols.NAME + FROM sys.columns cols + WHERE periods.object_id = tbl.object_id + AND cols.object_id = tbl.object_id + AND cols.column_id = periods.start_column_id), N'') + AS + SYSNAME) + AS [SystemTimePeriodStartColumn] + ,CAST(ISNULL((SELECT cols.NAME + FROM sys.columns cols + WHERE periods.object_id = tbl.object_id + AND cols.object_id = tbl.object_id + AND cols.column_id = periods.end_column_id), N'') AS + SYSNAME + ) + AS [SystemTimePeriodEndColumn] + ,tbl.temporal_type + AS [TemporalType] + ,CAST(tbl.is_remote_data_archive_enabled AS BIT) AS [RemoteDataArchiveEnabled] + ,CAST(ISNULL(rdat.migration_state, 0) AS TINYINT) AS [RemoteDataArchiveDataMigrationState] + ,CAST(rdat.filter_predicate AS VARCHAR(4000)) AS [RemoteDataArchiveFilterPredicate] + ,CAST(rdat.remote_table_name AS SYSNAME) AS [RemoteTableName] + ,CAST(CASE + WHEN rdat.remote_table_name IS NULL THEN 0 + ELSE 1 + END AS BIT) + AS [RemoteTableProvisioned] + ,CAST(tbl.is_external AS BIT) AS [IsExternal] + ,eds.NAME AS [DataSourceName] + ,ISNULL(eff.NAME, N'') AS [FileFormatName] + ,ISNULL(et.location, N'') AS [Location] + ,CASE et.reject_type + WHEN 'VALUE' THEN 0 + WHEN 'PERCENTAGE' THEN 1 + ELSE -1 + END + AS [RejectType] + ,ISNULL(et.reject_value, 0) + AS [RejectValue] + ,ISNULL(et.reject_sample_value, -1) + AS [RejectSampleValue] +FROM sys.tables AS tbl + LEFT OUTER JOIN sys.periods AS periods + ON periods.object_id = tbl.object_id + LEFT OUTER JOIN sys.tables AS historyTable + ON historyTable.object_id = tbl.history_table_id + LEFT OUTER JOIN sys.database_principals AS stbl + ON stbl.principal_id = ISNULL(tbl.principal_id, ( + Objectproperty(tbl.object_id, + 'OwnerId') )) + INNER JOIN sys.indexes AS idx + ON idx.object_id = tbl.object_id + AND ( idx.index_id < @_msparam_0 + OR ( tbl.is_memory_optimized = 1 + AND idx.index_id = (SELECT Min(index_id) + FROM sys.indexes + WHERE + object_id = tbl.object_id) ) ) + LEFT OUTER JOIN sys.data_spaces AS dstext + ON tbl.lob_data_space_id = dstext.data_space_id + LEFT OUTER JOIN sys.change_tracking_tables AS ctt + ON ctt.object_id = tbl.object_id + LEFT OUTER JOIN sys.filetables AS ft + ON ft.object_id = tbl.object_id + LEFT OUTER JOIN sys.data_spaces AS dsidx + ON dsidx.data_space_id = idx.data_space_id + LEFT OUTER JOIN sys.tables AS t + ON t.object_id = idx.object_id + LEFT OUTER JOIN sys.data_spaces AS dstbl + ON dstbl.data_space_id = t.filestream_data_space_id + AND ( idx.index_id < 2 + OR ( idx.type = 7 + AND idx.index_id < 3 ) ) + LEFT OUTER JOIN #tmp_extended_remote_data_archive_tables AS rdat + ON rdat.object_id = tbl.object_id + LEFT OUTER JOIN sys.external_tables AS et + ON et.object_id = tbl.object_id + LEFT OUTER JOIN sys.external_data_sources AS eds + ON eds.data_source_id = et.data_source_id + LEFT OUTER JOIN sys.external_file_formats AS eff + ON eff.file_format_id = et.file_format_id +WHERE ( tbl.NAME = @tableName + AND SCHEMA_NAME(tbl.schema_id) = @schemaName ); + +DROP TABLE #tmp_extended_remote_data_archive_tables; diff --git a/Scripts/Table_and_Index_storage_size.sql b/Scripts/Table_and_Index_storage_size.sql new file mode 100644 index 00000000..3e1e593a --- /dev/null +++ b/Scripts/Table_and_Index_storage_size.sql @@ -0,0 +1,63 @@ +--Get Table and Index storage size in sql server +--Link: http://stackoverflow.com/questions/15896564/get-table-and-index-storage-size-in-sql-server#15896658 +/* +Author: marc_s +This query here will list the total size that a table takes up - clustered index, heap and all nonclustered indices +If you want to separate table space from index space, you need to use AND i.index_id IN (0,1) for the table space +(index_id = 0 is the heap space, index_id = 1 is the size of the clustered index = data pages) and AND i.index_id > 1 for the index-only space +*/ + +SELECT + s.Name AS SchemaName, + t.NAME AS TableName, + p.rows AS RowCounts, + SUM(a.total_pages) * 8 AS TotalSpaceKB, + SUM(a.used_pages) * 8 AS UsedSpaceKB, + (SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS UnusedSpaceKB +FROM + sys.tables t +INNER JOIN + sys.schemas s ON s.schema_id = t.schema_id +INNER JOIN + sys.indexes i ON t.OBJECT_ID = i.object_id +INNER JOIN + sys.partitions p ON i.object_id = p.OBJECT_ID AND i.index_id = p.index_id +INNER JOIN + sys.allocation_units a ON p.partition_id = a.container_id +WHERE + t.NAME NOT LIKE 'dt%' -- filter out system tables for diagramming + AND t.is_ms_shipped = 0 + AND i.OBJECT_ID > 255 +GROUP BY + t.Name, s.Name, p.Rows +ORDER BY + s.Name, t.Name + +----------------------------- +/* +Author: Muhmud +Takes into account internal tables, such as those used for XML storage. +Edit: If you divide the data_kb and index_kb values by 1024.0, you will get the numbers you see in the GUI. +*/ + + with pages as ( + SELECT object_id, SUM (reserved_page_count) as reserved_pages, SUM (used_page_count) as used_pages, + SUM (case + when (index_id < 2) then (in_row_data_page_count + lob_used_page_count + row_overflow_used_page_count) + else lob_used_page_count + row_overflow_used_page_count + end) as pages + FROM sys.dm_db_partition_stats + group by object_id +), extra as ( + SELECT p.object_id, sum(reserved_page_count) as reserved_pages, sum(used_page_count) as used_pages + FROM sys.dm_db_partition_stats p, sys.internal_tables it + WHERE it.internal_type IN (202,204,211,212,213,214,215,216) AND p.object_id = it.object_id + group by p.object_id +) +SELECT object_schema_name(p.object_id) + '.' + object_name(p.object_id) as TableName, (p.reserved_pages + isnull(e.reserved_pages, 0)) * 8 as reserved_kb, + pages * 8 as data_kb, + (CASE WHEN p.used_pages + isnull(e.used_pages, 0) > pages THEN (p.used_pages + isnull(e.used_pages, 0) - pages) ELSE 0 END) * 8 as index_kb, + (CASE WHEN p.reserved_pages + isnull(e.reserved_pages, 0) > p.used_pages + isnull(e.used_pages, 0) THEN (p.reserved_pages + isnull(e.reserved_pages, 0) - p.used_pages + isnull(e.used_pages, 0)) else 0 end) * 8 as unused_kb +from pages p +left outer join extra e on p.object_id = e.object_id + \ No newline at end of file diff --git a/Scripts/Table_upload_order.sql b/Scripts/Table_upload_order.sql new file mode 100644 index 00000000..5122aa6a --- /dev/null +++ b/Scripts/Table_upload_order.sql @@ -0,0 +1,76 @@ +/* +Author: +Link: +*/ + +WITH fk_tables AS + (SELECT s1.name AS from_schema + , o1.name AS from_table + , s2.name AS to_schema + , o2.name AS to_table + FROM sys.foreign_keys fk + INNER JOIN sys.objects o1 ON fk.parent_object_id = o1.object_id + INNER JOIN sys.schemas s1 ON o1.schema_id = s1.schema_id + INNER JOIN sys.objects o2 ON fk.referenced_object_id = o2.object_id + INNER JOIN sys.schemas s2 ON o2.schema_id = s2.schema_id + INNER JOIN (SELECT object_id, SUM(row_count) AS row_count + FROM sys.dm_db_partition_stats + WHERE index_id < 2 + GROUP BY object_id + ) AS rc ON o1.object_id = rc.object_id + /*For the purposes of finding dependency hierarchy + we're not worried about self-referencing tables*/ + WHERE NOT + (s1.name = s2.name + AND o1.name = o2.name + ) + ) + , ordered_tables AS + (SELECT s.name AS schemaName + , t.name AS tableName + , 0 AS TableLevel + FROM(SELECT * + FROM sys.tables + ) t + INNER JOIN sys.schemas s ON t.schema_id = s.schema_id + LEFT OUTER JOIN fk_tables fk ON s.name = fk.from_schema AND t.name = fk.from_table + WHERE fk.from_schema IS NULL + UNION ALL + SELECT fk.from_schema + , fk.from_table + , ot.TableLevel + 1 + FROM fk_tables fk + INNER JOIN ordered_tables ot ON fk.to_schema = ot.schemaName AND fk.to_table = ot.tableName + ) + , final AS + (SELECT DISTINCT ot.schemaName + , ot.tableName + , ot.TableLevel + FROM ordered_tables ot + INNER JOIN + (SELECT schemaName + , tableName + , MAX(TableLevel) maxTableLevel + FROM ordered_tables + GROUP BY schemaName + , tableName + ) mx ON ot.schemaName = mx.schemaName AND ot.tableName = mx.tableName AND mx.maxTableLevel = ot.TableLevel + ) +SELECT QUOTENAME(final.schemaName) + '.' + QUOTENAME(final.tableName) + , TableLevel +FROM final +WHERE( + -- exclude some schemes by IN + final.schemaName NOT IN('dbo' + , 'consumption') + -- exclude some tables by IN + AND final.tableName NOT IN('TP6' + , 'WorldScenarioResult') + -- exclude some tables by mask + AND final.tableName NOT LIKE '%Temp' + ) + -- add some tables by mask and with IN + OR final.tableName IN('IPAdmin') + OR final.tableName LIKE 'AspNet%' + OR final.tableName LIKE 'Application%' +ORDER BY TableLevel; \ No newline at end of file diff --git a/Scripts/Tempdb_Contention.sql b/Scripts/Tempdb_Contention.sql new file mode 100644 index 00000000..961cd119 --- /dev/null +++ b/Scripts/Tempdb_Contention.sql @@ -0,0 +1,36 @@ +/* +Author: Paul Randal +Original link: http://www.sqlskills.com/blogs/paul/the-accidental-dba-day-27-of-30-troubleshooting-tempdb-contention/ +*/ + +SELECT + [owt].[session_id], + [owt].[exec_context_id], + [owt].[wait_duration_ms], + [owt].[wait_type], + [owt].[blocking_session_id], + [owt].[resource_description], + CASE [owt].[wait_type] + WHEN N'CXPACKET' THEN + RIGHT ([owt].[resource_description], + CHARINDEX (N'=', REVERSE ([owt].[resource_description])) - 1) + ELSE NULL + END AS [Node ID], + [es].[program_name], + [est].text, + [er].[database_id], + [eqp].[query_plan], + [er].[cpu_time] +FROM sys.dm_os_waiting_tasks [owt] +INNER JOIN sys.dm_exec_sessions [es] ON + [owt].[session_id] = [es].[session_id] +INNER JOIN sys.dm_exec_requests [er] ON + [es].[session_id] = [er].[session_id] +OUTER APPLY sys.dm_exec_sql_text ([er].[sql_handle]) [est] +OUTER APPLY sys.dm_exec_query_plan ([er].[plan_handle]) [eqp] +WHERE + [es].[is_user_process] = 1 +ORDER BY + [owt].[session_id], + [owt].[exec_context_id]; +GO \ No newline at end of file diff --git a/Scripts/Temporal_Table_Maker.sql b/Scripts/Temporal_Table_Maker.sql new file mode 100644 index 00000000..989f1655 --- /dev/null +++ b/Scripts/Temporal_Table_Maker.sql @@ -0,0 +1,157 @@ +/* +Author: Bill Fellows +Original link: http://billfellows.blogspot.ru/2017/10/temporal-table-maker.html +*/ + +DECLARE + @query nvarchar(4000) +, @targetSchema sysname = 'dbo_HISTORY' +, @tableName sysname +, @targetFileGroup sysname = 'History'; + +DECLARE + CSR CURSOR +FAST_FORWARD +FOR +SELECT ALL + CONCAT( + 'SELECT * FROM ' + , S.name + , '.' + , T.name) +, T.name +FROM + sys.schemas AS S + INNER JOIN sys.tables AS T + ON T.schema_id = S.schema_id +WHERE + 1=1 + AND S.name = 'dbo' + AND T.name NOT IN + (SELECT TI.name FROM sys.schemas AS SI INNER JOIN sys.tables AS TI ON TI.schema_id = SI.schema_id WHERE SI.name = @targetSchema); + +OPEN CSR; +FETCH NEXT FROM CSR INTO @query, @tableName; +WHILE @@FETCH_STATUS = 0 +BEGIN + -- do something + SELECT + CONCAT + ( + 'CREATE TABLE ' + , @targetSchema + , '.' + , @tableName + , '(' + , STUFF + ( + ( + SELECT + CONCAT + ( + ',' + , DEDFRS.name + , ' ' + , DEDFRS.system_type_name + , ' ' + , CASE DEDFRS.is_nullable + WHEN 1 THEN '' + ELSE 'NOT ' + END + , 'NULL' + ) + FROM + sys.dm_exec_describe_first_result_set(@query, N'', 1) AS DEDFRS + ORDER BY + DEDFRS.column_ordinal + FOR XML PATH('') + ) + , 1 + , 1 + , '' + ) + , ', SysStartTime datetime2(7) NOT NULL' + , ', SysEndTime datetime2(7) NOT NULL' + , ')' + , ' ON ' + , @targetFileGroup + , ';' + , CHAR(13) + , 'CREATE CLUSTERED COLUMNSTORE INDEX CCI_' + , @targetSchema + , '_' + , @tableName + , ' ON ' + , @targetSchema + , '.' + , @tableName + , ' ON ' + , @targetFileGroup + , ';' + , CHAR(13) + , 'CREATE NONCLUSTERED INDEX IX_' + , @targetSchema + , '_' + , @tableName + , '_PERIOD_COLUMNS ' + , ' ON ' + , @targetSchema + , '.' + , @tableName + + , '(' + , 'SysEndTime' + , ',SysStartTime' + , ( + SELECT + CONCAT + ( + ',' + , DEDFRS.name + ) + FROM + sys.dm_exec_describe_first_result_set(@query, N'', 1) AS DEDFRS + WHERE + DEDFRS.is_part_of_unique_key = 1 + ORDER BY + DEDFRS.column_ordinal + FOR XML PATH('') + ) + , ')' + , ' ON ' + , @targetFileGroup + , ';' + , CHAR(13) + , 'ALTER TABLE ' + , 'dbo' + , '.' + , @tableName + , ' ADD ' + , 'SysStartTime datetime2(7) GENERATED ALWAYS AS ROW START HIDDEN' + , ' CONSTRAINT DF_' + , 'dbo_' + , @tableName + , '_SysStartTime DEFAULT SYSUTCDATETIME()' + , ', SysEndTime datetime2(7) GENERATED ALWAYS AS ROW END HIDDEN' + , ' CONSTRAINT DF_' + , 'dbo_' + , @tableName + , '_SysEndTime DEFAULT DATETIME2FROMPARTS(9999, 12, 31, 23,59, 59,9999999,7)' + , ', PERIOD FOR SYSTEM_TIME (SysStartTime, SysEndTime);' + , CHAR(13) + , 'ALTER TABLE ' + , 'dbo' + , '.' + , @tableName + , ' SET (SYSTEM_VERSIONING = ON (HISTORY_TABLE = ' + , @targetSchema + , '.' + , @tableName + , '));' + + ); + +FETCH NEXT FROM CSR INTO @query, @tableName; +END +CLOSE CSR; +DEALLOCATE CSR; diff --git a/Scripts/Test_job.sql b/Scripts/Test_job.sql new file mode 100644 index 00000000..d768ed01 --- /dev/null +++ b/Scripts/Test_job.sql @@ -0,0 +1,88 @@ +/* +Source: https://sqlpal.blogspot.com/2018/04/how-to-start-sql-server-job-using-tsql.html +Author: ? +*/ + +SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; +SET NOCOUNT ON; + +DECLARE +@job_name SYSNAME = 'test', -- INPUT YOUR JOB NAME HERE +@WaitTime DATETIME = '00:00:05', -- default check frequency +@JobCompletionStatus INT + + +-- CHECK IF IT IS A VALID AND EXISTING JOB NAME + +IF NOT EXISTS (SELECT * FROM msdb..sysjobs WHERE name =@job_name) +BEGIN + RAISERROR ('[ERROR]:[%s] job does not exist. Please check',16, 1, @job_name) WITH LOG; + RETURN; +END; + + +DECLARE @job_id UNIQUEIDENTIFIER; +DECLARE @job_owner SYSNAME; + +--Createing TEMP TABLE +CREATE TABLE #xp_results (job_id UNIQUEIDENTIFIER NOT NULL, + last_run_date INT NOT NULL, + last_run_time INT NOT NULL, + next_run_date INT NOT NULL, + next_run_time INT NOT NULL, + next_run_schedule_id INT NOT NULL, + requested_to_run INT NOT NULL, -- BOOL + request_source INT NOT NULL, + request_source_id sysname COLLATE database_default NULL, + running INT NOT NULL, -- BOOL + current_step INT NOT NULL, + current_retry_attempt INT NOT NULL, + job_state INT NOT NULL); + +SELECT @job_id = job_id FROM msdb.dbo.sysjobs WHERE name =@job_name; + +SET @job_owner = SUSER_SNAME(); + +INSERT INTO #xp_results EXECUTE master.dbo.xp_sqlagent_enum_jobs 1, @job_owner, @job_id; + +-- Start the job only if it is not already running +IF NOT EXISTS(SELECT TOP 1 * FROM #xp_results WHERE running = 1) + EXEC msdb.dbo.sp_start_job @job_name = @job_name; + +-- Give it 2 seconds for think time. +WAITFOR DELAY '00:00:02'; + +DELETE FROM #xp_results; +INSERT INTO #xp_results +EXECUTE master.dbo.xp_sqlagent_enum_jobs 1, @job_owner, @job_id; + +WHILE EXISTS(SELECT TOP 1 * FROM #xp_results WHERE running = 1) +BEGIN + + WAITFOR DELAY @WaitTime; + + -- Display informational message at each interval + raiserror('JOB IS RUNNING', 0, 1 ) WITH NOWAIT; + + DELETE FROM #xp_results; + + INSERT INTO #xp_results + EXECUTE master.dbo.xp_sqlagent_enum_jobs 1, @job_owner, @job_id; + +END + +SELECT top 1 @JobCompletionStatus =run_status +FROM msdb.dbo.sysjobhistory +WHERE job_id = @job_id + AND step_id = 0 +ORDER BY run_date desc, run_time desc; + + +IF @JobCompletionStatus = 1 + PRINT 'The job ran Successful' +ELSE IF @JobCompletionStatus =3 + PRINT 'The job is Cancelled' +ELSE +BEGIN + RAISERROR ('[ERROR]:%s job is either failed or not in good state. Please check',16, 1, @job_name) WITH LOG; +END; diff --git a/Scripts/Trace_Flag/Trace_Flag_460.sql b/Scripts/Trace_Flag/Trace_Flag_460.sql new file mode 100644 index 00000000..2cc0f465 --- /dev/null +++ b/Scripts/Trace_Flag/Trace_Flag_460.sql @@ -0,0 +1,38 @@ +SET NOEXEC OFF; + +DECLARE @msg NVARCHAR(MAX) = N''; +DECLARE @productMajorVersion INT; +SET @productMajorVersion = CAST(SERVERPROPERTY('ProductMajorVersion') AS INT); + +IF @productMajorVersion < 14 OR (@productMajorVersion = 14 AND SERVERPROPERTY('ProductBuild') < 3045) +BEGIN + RAISERROR(N'Sorry, Trace flag 460 only works for SQL Server 2019 and SQL Server >= 2017 CU12 on this moment.', 16, 1); + SET NOEXEC ON; +END; + +USE tempdb; +GO + +IF OBJECT_ID(N'dbo.WorldSeries', 'U') IS NOT NULL DROP TABLE dbo.WorldSeries; +GO + +CREATE TABLE dbo.WorldSeries (TeamName VARCHAR(200), Championships VARCHAR(3)); +GO + +DBCC TRACEOFF(460); /* if this flag alredy activated */ +INSERT INTO dbo.WorldSeries (TeamName, Championships) VALUES ('Texas Rangers', null); +INSERT INTO dbo.WorldSeries (TeamName, Championships) VALUES + ('Houston Astros', 'one') + , ('Atlanta Braves', 'two') + , ('Pittsburgh Pirates', 'five'); /* too long Championships value */ +GO + +DBCC TRACEON(460); +INSERT INTO dbo.WorldSeries (TeamName, Championships) VALUES + ('Houston Astros', 'one') + , ('Atlanta Braves', 'two') + , ('Pittsburgh Pirates', 'five'); /* too long Championships value */ +GO + +IF OBJECT_ID(N'dbo.WorldSeries', 'U') IS NOT NULL DROP TABLE dbo.WorldSeries; +GO diff --git a/Scripts/Trace_Flag/Trace_Flag_8602.sql b/Scripts/Trace_Flag/Trace_Flag_8602.sql new file mode 100644 index 00000000..3f97dea9 --- /dev/null +++ b/Scripts/Trace_Flag/Trace_Flag_8602.sql @@ -0,0 +1,76 @@ +/* +Trace Flag Demo: 8602 +Function: This trace flag is used to ignore all the index hints specified in query or stored procedure. +We can use this trace flag to troubleshooting the query performance without changing index hints. +SQL Server Version: 2008-2017 +Information link: https://github.com/ktaranov/sqlserver-kit/blob/master/SQL%20Server%20Trace%20Flag.md#8602 +*/ + +USE master +GO + +IF DB_ID(N'Trace8602') IS NOT NULL +BEGIN + ALTER DATABASE Trace8602 SET SINGLE_USER WITH ROLLBACK IMMEDIATE; + DROP DATABASE Trace8602; +END; +GO + +CREATE DATABASE Trace8602; +GO + +USE Trace8602; +GO + +CREATE TABLE xttrace8602 + ( + id INT identity(1, 1) PRIMARY KEY + , bal INT + , name VARCHAR(100) + ); +GO +CREATE NONCLUSTERED INDEX IX_xttrace8602_bal_name ON xttrace8602 + ( + bal + , name + ); +CREATE NONCLUSTERED INDEX IX_xttrace8602_bal ON xttrace8602(bal) ; +GO + +INSERT INTO xttrace8602(bal, name) +SELECT TOP(10000) RAND() * 786 AS bal + , 'SQLServerGeeks.com' AS name + FROM sys.all_objects + CROSS JOIN sys.all_columns; +GO + +CREATE PROC usp_First +AS + SELECT id + , name + FROM xttrace8602 AS tf WITH(INDEX(IX_xttrace8602_bal)) + WHERE bal < 100; +GO + +/*Ctrl+M Include Actual Execution Plan in SSMS*/ +EXEC usp_First; +GO +/*Enable Trace flag*/ +DBCC TRACEON(8602, -1); +GO +/*Clear procedure cache*/ +DECLARE @planHandle VARBINARY(64); +SELECT @planHandle = cp.plan_handle + FROM sys.dm_exec_cached_plans AS cp + CROSS APPLY sys.dm_exec_sql_text(cp.plan_handle) AS st + WHERE st.[text] LIKE '%CREATE PROC usp_First%' AND objtype = 'Proc'; +PRINT(@planHandle); +IF @planHandle IS NOT NULL DBCC FREEPROCCACHE (@planHandle); +GO + +EXEC usp_First; +GO + +/*Disable Trace flag*/ +DBCC TRACEOff(8602,-1) +GO diff --git a/Scripts/TuneYourIndexingStrategyWithDMVs.sql b/Scripts/TuneYourIndexingStrategyWithDMVs.sql new file mode 100644 index 00000000..556795e3 --- /dev/null +++ b/Scripts/TuneYourIndexingStrategyWithDMVs.sql @@ -0,0 +1,231 @@ +/* +Author: Louis Davidson and Tim Ford +Original link: https://www.simple-talk.com/sql/performance/tune-your-indexing-strategy-with-sql-server-dmvs +*/ +-- Tune Your Indexing Strategy with SQL Server DMVs + +-- Usage stats for indexes used to resolve a query +SELECT OBJECT_NAME(ddius.[object_id], ddius.database_id) AS [object_name] , + ddius.index_id , + ddius.user_seeks , + ddius.user_scans , + ddius.user_lookups , + ddius.user_seeks + ddius.user_scans + ddius.user_lookups + AS user_reads , + ddius.user_updates AS user_writes , + ddius.last_user_scan , + ddius.last_user_update +FROM sys.dm_db_index_usage_stats ddius +WHERE ddius.database_id > 4 -- filter out system tables + AND OBJECTPROPERTY(ddius.OBJECT_ID, 'IsUserTable') = 1 + AND ddius.index_id > 0 -- filter out heaps +ORDER BY ddius.user_scans DESC + + +-- List unused indexes +SELECT OBJECT_NAME(i.[object_id]) AS [Table Name] , + i.name +FROM sys.indexes AS i + INNER JOIN sys.objects AS o ON i.[object_id] = o.[object_id] +WHERE i.index_id NOT IN ( SELECT ddius.index_id + FROM sys.dm_db_index_usage_stats AS ddius + WHERE ddius.[object_id] = i.[object_id] + AND i.index_id = ddius.index_id + AND database_id = DB_ID() ) + AND o.[type] = 'U' +ORDER BY OBJECT_NAME(i.[object_id]) ASC ; + + +-- Querying sys.dm_db_index_usage_stats for indexes that are being maintained but not used +SELECT '[' + DB_NAME() + '].[' + su.[name] + '].[' + o.[name] + ']' + AS [statement] , + i.[name] AS [index_name] , + ddius.[user_seeks] + ddius.[user_scans] + ddius.[user_lookups] + AS [user_reads] , + ddius.[user_updates] AS [user_writes] , + SUM(SP.rows) AS [total_rows] +FROM sys.dm_db_index_usage_stats ddius + INNER JOIN sys.indexes i ON ddius.[object_id] = i.[object_id] + AND i.[index_id] = ddius.[index_id] + INNER JOIN sys.partitions SP ON ddius.[object_id] = SP.[object_id] + AND SP.[index_id] = ddius.[index_id] + INNER JOIN sys.objects o ON ddius.[object_id] = o.[object_id] + INNER JOIN sys.sysusers su ON o.[schema_id] = su.[UID] +WHERE ddius.[database_id] = DB_ID() -- current database only + AND OBJECTPROPERTY(ddius.[object_id], 'IsUserTable') = 1 + AND ddius.[index_id] > 0 +GROUP BY su.[name] , + o.[name] , + i.[name] , + ddius.[user_seeks] + ddius.[user_scans] + ddius.[user_lookups] , + ddius.[user_updates] +HAVING ddius.[user_seeks] + ddius.[user_scans] + ddius.[user_lookups] = 0 +ORDER BY ddius.[user_updates] DESC , + su.[name] , + o.[name] , + i.[name ] + + +-- How old are the index usage stats? +SELECT DATEDIFF(DAY, sd.crdate, GETDATE()) AS days_history +FROM sys.sysdatabases sd +WHERE sd.[name] = 'tempdb' ; + + +-- Potentially inefficent non-clustered indexes (writes > reads) +SELECT OBJECT_NAME(ddius.[object_id]) AS [Table Name] , + i.name AS [Index Name] , + i.index_id , + user_updates AS [Total Writes] , + user_seeks + user_scans + user_lookups AS [Total Reads] , + user_updates - ( user_seeks + user_scans + user_lookups ) + AS [Difference] +FROM sys.dm_db_index_usage_stats AS ddius WITH ( NOLOCK ) + INNER JOIN sys.indexes AS i WITH ( NOLOCK ) + ON ddius.[object_id] = i.[object_id] + AND i.index_id = ddius.index_id +WHERE OBJECTPROPERTY(ddius.[object_id], 'IsUserTable') = 1 + AND ddius.database_id = DB_ID() + AND user_updates > ( user_seeks + user_scans + user_lookups ) + AND i.index_id > 1 +ORDER BY [Difference] DESC , + [Total Writes] DESC , + [Total Reads] ASC ; + + +-- Detailed activity information for indexes not used for user reads +SELECT '[' + DB_NAME() + '].[' + su.[name] + '].[' + o.[name] + ']' + AS [statement] , + i.[name] AS [index_name] , + ddius.[user_seeks] + ddius.[user_scans] + ddius.[user_lookups] + AS [user_reads] , + ddius.[user_updates] AS [user_writes] , + ddios.[leaf_insert_count] , + ddios.[leaf_delete_count] , + ddios.[leaf_update_count] , + ddios.[nonleaf_insert_count] , + ddios.[nonleaf_delete_count] , + ddios.[nonleaf_update_count] +FROM sys.dm_db_index_usage_stats ddius + INNER JOIN sys.indexes i ON ddius.[object_id] = i.[object_id] + AND i.[index_id] = ddius.[index_id] + INNER JOIN sys.partitions SP ON ddius.[object_id] = SP.[object_id] + AND SP.[index_id] = ddius.[index_id] + INNER JOIN sys.objects o ON ddius.[object_id] = o.[object_id] + INNER JOIN sys.sysusers su ON o.[schema_id] = su.[UID] + INNER JOIN sys.[dm_db_index_operational_stats](DB_ID(), NULL, NULL, + NULL) + AS ddios + ON ddius.[index_id] = ddios.[index_id] + AND ddius.[object_id] = ddios.[object_id] + AND SP.[partition_number] = ddios.[partition_number] + AND ddius.[database_id] = ddios.[database_id] +WHERE OBJECTPROPERTY(ddius.[object_id], 'IsUserTable') = 1 + AND ddius.[index_id] > 0 + AND ddius.[user_seeks] + ddius.[user_scans] + ddius.[user_lookups] = 0 +ORDER BY ddius.[user_updates] DESC , + su.[name] , + o.[name] , + i.[name ] + + +-- Retrieving locking and blocking details for each index +SELECT '[' + DB_NAME(ddios.[database_id]) + '].[' + su.[name] + '].[' + + o.[name] + ']' AS [statement] , + i.[name] AS 'index_name' , + ddios.[partition_number] , + ddios.[row_lock_count] , + ddios.[row_lock_wait_count] , + CAST (100.0 * ddios.[row_lock_wait_count] + / ( ddios.[row_lock_count] ) AS DECIMAL(5, 2)) AS [%_times_blocked] , + ddios.[row_lock_wait_in_ms] , + CAST (1.0 * ddios.[row_lock_wait_in_ms] + / ddios.[row_lock_wait_count] AS DECIMAL(15, 2)) + AS [avg_row_lock_wait_in_ms] +FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) ddios + INNER JOIN sys.indexes i ON ddios.[object_id] = i.[object_id] + AND i.[index_id] = ddios.[index_id] + INNER JOIN sys.objects o ON ddios.[object_id] = o.[object_id] + INNER JOIN sys.sysusers su ON o.[schema_id] = su.[UID] +WHERE ddios.row_lock_wait_count > 0 + AND OBJECTPROPERTY(ddios.[object_id], 'IsUserTable') = 1 + AND i.[index_id] > 0 +ORDER BY ddios.[row_lock_wait_count] DESC , + su.[name] , + o.[name] , + i.[name ] + + +-- Investigating latch waits +SELECT '[' + DB_NAME() + '].[' + OBJECT_SCHEMA_NAME(ddios.[object_id]) + + '].[' + OBJECT_NAME(ddios.[object_id]) + ']' AS [object_name] , + i.[name] AS index_name , + ddios.page_io_latch_wait_count , + ddios.page_io_latch_wait_in_ms , + ( ddios.page_io_latch_wait_in_ms / ddios.page_io_latch_wait_count ) + AS avg_page_io_latch_wait_in_ms +FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) ddios + INNER JOIN sys.indexes i ON ddios.[object_id] = i.[object_id] + AND i.index_id = ddios.index_id +WHERE ddios.page_io_latch_wait_count > 0 + AND OBJECTPROPERTY(i.OBJECT_ID, 'IsUserTable') = 1 +ORDER BY ddios.page_io_latch_wait_count DESC , + avg_page_io_latch_wait_in_ms DESC + + +-- Identify lock escalations +SELECT OBJECT_NAME(ddios.[object_id], ddios.database_id) AS [object_name] , + i.name AS index_name , + ddios.index_id , + ddios.partition_number , + ddios.index_lock_promotion_attempt_count , + ddios.index_lock_promotion_count , + ( ddios.index_lock_promotion_attempt_count + / ddios.index_lock_promotion_count ) AS percent_success +FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) ddios + INNER JOIN sys.indexes i ON ddios.OBJECT_ID = i.OBJECT_ID + AND ddios.index_id = i.index_id +WHERE ddios.index_lock_promotion_count > 0 + + +-- Identify indexes associated with lock contention +SELECT OBJECT_NAME(ddios.OBJECT_ID, ddios.database_id) AS OBJECT_NAME , + i.name AS index_name , + ddios.index_id , + ddios.partition_number , + ddios.page_lock_wait_count , + ddios.page_lock_wait_in_ms , + CASE WHEN DDMID.database_id IS NULL THEN 'N' + ELSE 'Y' + END AS missing_index_identified +FROM sys.dm_db_index_operational_stats(DB_ID(), NULL, NULL, NULL) ddios + INNER JOIN sys.indexes i ON ddios.OBJECT_ID = i.OBJECT_ID + AND ddios.index_id = i.index_id + LEFT OUTER JOIN ( SELECT DISTINCT + database_id , + OBJECT_ID + FROM sys.dm_db_missing_index_details + ) AS DDMID ON DDMID.database_id = ddios.database_id + AND DDMID.OBJECT_ID = ddios.OBJECT_ID +WHERE ddios.page_lock_wait_in_ms > 0 +ORDER BY ddios.page_lock_wait_count DESC ; + + +-- Finding the most beneficial missing indexes +SELECT user_seeks * avg_total_user_cost * ( avg_user_impact * 0.01 ) AS [index_advantage] , + dbmigs.last_user_seek , + dbmid.[statement] AS [Database.Schema.Table] , + dbmid.equality_columns , + dbmid.inequality_columns , + dbmid.included_columns , + dbmigs.unique_compiles , + dbmigs.user_seeks , + dbmigs.avg_total_user_cost , + dbmigs.avg_user_impact +FROM sys.dm_db_missing_index_group_stats AS dbmigs WITH ( NOLOCK ) + INNER JOIN sys.dm_db_missing_index_groups AS dbmig WITH ( NOLOCK ) + ON dbmigs.group_handle = dbmig.index_group_handle + INNER JOIN sys.dm_db_missing_index_details AS dbmid WITH ( NOLOCK ) + ON dbmig.index_handle = dbmid.index_handle +WHERE dbmid.[database_id] = DB_ID() +ORDER BY index_advantage DESC ; diff --git a/Scripts/UnPivot_Output_Restore_Headeronly.sql b/Scripts/UnPivot_Output_Restore_Headeronly.sql new file mode 100644 index 00000000..c6efe9ab --- /dev/null +++ b/Scripts/UnPivot_Output_Restore_Headeronly.sql @@ -0,0 +1,91 @@ +--UnPivot The Output Of RESTORE HEADERONLY +--Author: Dave Mason +--Link:http://itsalljustelectrons.blogspot.ru/2017/02/Unpivot-Output-Of-RESTORE-HEADERONLY.html + +--create a reusable TABLE TYPE +CREATE TYPE dbo.Header_Only AS TABLE ( + BackupName nvarchar(128), + BackupDescription nvarchar(255), + BackupType smallint, + ExpirationDate datetime, + Compressed BIT, + Position smallint, + DeviceType tinyint, + UserName nvarchar(128), + ServerName nvarchar(128), + DatabaseName nvarchar(128), + DatabaseVersion int, + DatabaseCreationDate datetime, + BackupSize numeric(20,0), + FirstLSN numeric(25,0), + LastLSN numeric(25,0), + CheckpointLSN numeric(25,0), + DatabaseBackupLSN numeric(25,0), + BackupStartDate datetime, + BackupFinishDate datetime, + SortOrder smallint, + CodePage smallint, + UnicodeLocaleId int, + UnicodeComparisonStyle int, + CompatibilityLevel tinyint, + SoftwareVendorId int, + SoftwareVersionMajor int, + SoftwareVersionMinor int, + SoftwareVersionBuild int, + MachineName nvarchar(128), + Flags int, + BindingID uniqueidentifier, + RecoveryForkID uniqueidentifier, + Collation nvarchar(128), + FamilyGUID uniqueidentifier, + HasBulkLoggedData bit, + IsSnapshot bit, + IsReadOnly bit, + IsSingleUser bit, + HasBackupChecksums bit, + IsDamaged bit, + BeginsLogChain bit, + HasIncompleteMetaData bit, + IsForceOffline bit, + IsCopyOnly bit, + FirstRecoveryForkID uniqueidentifier, + ForkPointLSN numeric(25,0) NULL, + RecoveryModel nvarchar(60), + DifferentialBaseLSN numeric(25,0) NULL, + DifferentialBaseGUID uniqueidentifier, + BackupTypeDescription nvarchar(60), + BackupSetGUID uniqueidentifier NULL, + CompressedBackupSize bigint, + containment tinyint not NULL +) +GO + +--create a temp table, and insert the output of the RESTORE HEADERONLY statement into it via EXEC and a "RESTORE" string +DECLARE @HO AS dbo.Header_Only; + +SELECT * +INTO #HO +FROM @HO +WHERE 1 = 2 + +INSERT INTO #HO +EXEC ('RESTORE HEADERONLY FROM DISK = N''D:\Backup\SomeApp9_Template.bak'' ') + + +-- build a dynamic T-SQL query by iterating through the column names of the temp table (well, actually of the table type). +--The end result is a bunch of queries that select a static string (field name) and a single column (field value) from the temp table, UNION'ed together. +--The last "UNION ALL" is trimmed from the string. And the string is executed +DECLARE @TSql VARCHAR(MAX) = ''; +SELECT + @TSql = @TSql + 'SELECT ''' + c.name + ''' AS [Field], CAST([' + c.name + '] AS VARCHAR(MAX)) AS [Value] FROM #HO UNION ALL' + CHAR(13) + CHAR(10) +FROM sys.table_types t +JOIN sys.columns c + on c.object_id = t.type_table_object_id +WHERE t.name = 'Header_Only' +ORDER BY c.column_id + +SET @TSql = LEFT(@TSql, LEN(@TSql) - 11) + CHAR(13) + CHAR(10) + +EXEC (@TSql) + +DROP TABLE #HO \ No newline at end of file diff --git a/Scripts/Visualizing_Agent_Jobs_in_SSMS.sql b/Scripts/Visualizing_Agent_Jobs_in_SSMS.sql new file mode 100644 index 00000000..f1214749 --- /dev/null +++ b/Scripts/Visualizing_Agent_Jobs_in_SSMS.sql @@ -0,0 +1,120 @@ +/* +Author: Daniel Hutmacher +Original link: https://sqlsunday.com/downloads/ +*/ + + +/* +Copyright Daniel Hutmacher under Creative Commons 4.0 license with attribution. +http://creativecommons.org/licenses/by/4.0/ + +Source: http://sqlsunday.com/downloads/ + +DISCLAIMER: This script may not be suitable to run in a production + environment. I cannot assume any responsibility regarding + the accuracy of the output information, performance + impacts on your server, or any other consequence. If + your juristiction does not allow for this kind of + waiver/disclaimer, or if you do not accept these terms, + you are NOT allowed to store, distribute or use this + code in any way. + +VERSION: 2016-11-17 +*/ + +--- Parameters: +DECLARE + --- Starting date, time for the graph: + @from datetime2(0)=DATEADD(day, -7, SYSDATETIME()), + + --- Ending date, time for the graph: + @to datetime2(0)=SYSDATETIME(), + + --- Spacing of vertical grid lines. + @grid datetime2(0)=DATEADD(hour, 24, 0), + + --- Filter on job execution outcome + --- (0=fail, 1=ok, 2=retry, 3=cancel, NULL=all executions) + @status int=NULL; + + +--- Other variables: +DECLARE @jobcount int=(SELECT COUNT(*) FROM msdb.dbo.sysjobs), + @height int=500; + +--- Draw vertical grid lines, but only if @grid is not NULL: +WITH cte AS ( + SELECT CAST(CAST(@from AS date) AS datetime2(0)) AS [date] + WHERE @grid IS NOT NULL + UNION ALL + SELECT DATEADD(second, DATEDIFF(second, 0, @grid), [date]) + FROM cte + WHERE [date]<@to) + +SELECT LEFT(DATENAME(dw, [date]), 3)+' '+CONVERT(varchar(100), [date], 121) AS [Description], + CAST(NULL AS varchar(100)) AS [Start], + CAST(NULL AS varchar(100)) AS [End], + CAST(NULL AS time(0)) AS [Duration], + CAST(NULL AS nvarchar(4000)) AS [Output], + geometry::STGeomFromText('LINESTRING ('+ + STR(DATEDIFF(second, @from, [date]), 10, 0)+' '+STR(-@height, 10, 0)+', '+ + STR(DATEDIFF(second, @from, [date]), 10, 0)+' '+STR((@jobcount+2)*@height, 10, 0)+')', 0) +FROM cte +WHERE [date]>=@from AND [date]<=@to + + +UNION ALL + + +--- These are the job executions: +SELECT j.[name] AS [Description], + LEFT(DATENAME(dw, x.execution_start), 3)+' '+CONVERT(varchar(100), x.execution_start, 121) AS [Start], + CONVERT(varchar(100), DATEADD(second, x.duration_s, x.execution_start), 121) AS [End], + DATEADD(second, x.duration_s, CAST('00:00:00' AS time(0))) AS [Duration], + h.[message] AS [Output], + geometry::STGeomFromText('POLYGON (('+ + STR(coord.x, 10, 0) +' '+STR(coord.y, 10, 0)+', '+ + STR(coord.x+coord.w, 10, 0)+' '+STR(coord.y, 10, 0)+', '+ + STR(coord.x+coord.w, 10, 0)+' '+STR(coord.y+coord.h, 10, 0)+', '+ + STR(coord.x, 10, 0) +' '+STR(coord.y+coord.h, 10, 0)+', '+ + STR(coord.x, 10, 0) +' '+STR(coord.y, 10, 0)+'))', 0) +FROM msdb.dbo.sysjobhistory AS h +INNER JOIN ( + --- All the jobs, with an ordinal number to set their vertical coordition: + SELECT job_id, [name], DENSE_RANK() OVER (ORDER BY [name], job_id) AS ordinal + FROM msdb.dbo.sysjobs + ) AS j ON h.job_id=j.job_id +CROSS APPLY ( + VALUES( + --- Convert the funky "run_duration" column (int, hhmiss) to the + --- actual number of seconds that the job ran: + 3600*((h.run_duration-h.run_duration%10000)/10000)+ + 60*(((h.run_duration-h.run_duration%100)/100)%100)+ + h.run_duration%100, + --- Convert the funky "run_date" (int, yyyymmdd) and "run_time" + --- (int, hhmiss) to a datetime2(0), so we can work with it: + DATEADD(second, + 3600*((h.run_time-h.run_time%10000)/10000)+ + 60*(((h.run_time-h.run_time%100)/100)%100)+ + h.run_time%100, + CONVERT(datetime2(0), CAST(h.run_date AS varchar(100)), 112))) + ) AS x(duration_s, execution_start) +CROSS APPLY ( + --- Calculating the polygon coordinates: + VALUES ( + --- x: the offset of the execution start time + DATEDIFF(second, @from, x.execution_start), + --- y: the ordinal of the job + j.ordinal*@height, + --- w: the duration of the execution + x.duration_s, + --- h: 80% of the row height (@height) + 0.8*@height) + ) AS coord(x, y, w, h) +WHERE h.step_id=0 AND + (h.run_status=@status OR @status IS NULL) AND + (h.run_date>CAST(CONVERT(varchar(10), @from, 112) AS int) OR + h.run_date=CAST(CONVERT(varchar(10), @from, 112) AS int) AND h.run_time>=CAST(REPLACE(CONVERT(varchar(100), @from, 108), ':', '') AS int)) AND + (h.run_date 0 - ) + ) SELECT MAX ([W1].[wait_type]) AS [WaitType], CAST (MAX ([W1].[WaitS]) AS DECIMAL (16,2)) AS [Wait_S], @@ -58,10 +111,10 @@ SELECT CAST (MAX ([W1].[Percentage]) AS DECIMAL (5,2)) AS [Percentage], CAST ((MAX ([W1].[WaitS]) / MAX ([W1].[WaitCount])) AS DECIMAL (16,4)) AS [AvgWait_S], CAST ((MAX ([W1].[ResourceS]) / MAX ([W1].[WaitCount])) AS DECIMAL (16,4)) AS [AvgRes_S], - CAST ((MAX ([W1].[SignalS]) / MAX ([W1].[WaitCount])) AS DECIMAL (16,4)) AS [AvgSig_S] + CAST ((MAX ([W1].[SignalS]) / MAX ([W1].[WaitCount])) AS DECIMAL (16,4)) AS [AvgSig_S], + CAST ('https://www.sqlskills.com/help/waits/' + MAX ([W1].[wait_type]) as XML) AS [Help/Info URL] FROM [Waits] AS [W1] -INNER JOIN [Waits] AS [W2] - ON [W2].[RowNum] <= [W1].[RowNum] +INNER JOIN [Waits] AS [W2] ON [W2].[RowNum] <= [W1].[RowNum] GROUP BY [W1].[RowNum] -HAVING SUM ([W2].[Percentage]) - MAX ([W1].[Percentage]) < 95; -- percentage threshold -GO +HAVING SUM ([W2].[Percentage]) - MAX( [W1].[Percentage] ) < 95; -- percentage threshold +GO \ No newline at end of file diff --git a/Scripts/What_Agent_Job_is_Running.sql b/Scripts/What_Agent_Job_is_Running.sql new file mode 100644 index 00000000..d3ed6f70 --- /dev/null +++ b/Scripts/What_Agent_Job_is_Running.sql @@ -0,0 +1,50 @@ +/* +Author: Jason Brimhall +Original link: http://www.sqlservercentral.com/blogs/sqlrnnr/2016/12/23/what-agent-job-is-running-back-to-basics/ +*/ + +SELECT p.session_id,p.program_name + ,j.name AS JobName, js.step_name, j.description, js.step_id + , st.Query AS JobCommand + , js.subsystem + FROM sys.dm_exec_sessions p + INNER JOIN msdb.dbo.sysjobs j + ON j.job_id = CONVERT(UNIQUEIDENTIFIER, CONVERT(BINARY(16), SUBSTRING(p.program_name, + CHARINDEX('(', + p.program_name) + + 5, + CHARINDEX(':', + p.program_name) + - CHARINDEX('(', + p.program_name) + - 6),1)) + INNER JOIN msdb.dbo.sysjobsteps js + ON j.job_id = js.job_id + CROSS APPLY ( + SELECT + REPLACE + ( + REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE( + REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE( + REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE( + CONVERT + ( + NVARCHAR(MAX), + N'--' + NCHAR(13) + NCHAR(10) + ist.command + NCHAR(13) + NCHAR(10) + N'--' COLLATE Latin1_General_Bin2 + ), + NCHAR(31),N'?'),NCHAR(30),N'?'),NCHAR(29),N'?'),NCHAR(28),N'?'),NCHAR(27),N'?'),NCHAR(26),N'?'),NCHAR(25),N'?'),NCHAR(24),N'?'),NCHAR(23),N'?'),NCHAR(22),N'?'), + NCHAR(21),N'?'),NCHAR(20),N'?'),NCHAR(19),N'?'),NCHAR(18),N'?'),NCHAR(17),N'?'),NCHAR(16),N'?'),NCHAR(15),N'?'),NCHAR(14),N'?'),NCHAR(12),N'?'), + NCHAR(11),N'?'),NCHAR(8),N'?'),NCHAR(7),N'?'),NCHAR(6),N'?'),NCHAR(5),N'?'),NCHAR(4),N'?'),NCHAR(3),N'?'),NCHAR(2),N'?'),NCHAR(1),N'?'), + NCHAR(0), + N'' + ) AS [processing-instruction(query)] + FROM msdb.dbo.sysjobsteps AS ist + WHERE ist.job_id = j.job_id + AND ist.step_id = SUBSTRING(p.program_name, CHARINDEX(')', p.program_name) - 2, 2) + FOR XML + PATH(''), + TYPE + ) AS st(Query) + WHERE p.program_name LIKE 'SQLAgent - TSQL JobStep (Job%' + AND js.step_id = SUBSTRING(p.program_name, CHARINDEX(')', p.program_name) - 2, 2) + ; \ No newline at end of file diff --git a/Scripts/Which_Filegroup_is_that_Partition_Using.sql b/Scripts/Which_Filegroup_is_that_Partition_Using.sql new file mode 100644 index 00000000..c7da2d79 --- /dev/null +++ b/Scripts/Which_Filegroup_is_that_Partition_Using.sql @@ -0,0 +1,47 @@ +/* +Source link: https://www.littlekendra.com/2017/01/31/which-filegroup-is-that-partition-using-how-many-rows-does-it-have/ +Author: Kendra Little +*/ +SELECT + sc.name + N'.' + so.name as [Schema.Table], + si.index_id as [Index ID], + si.type_desc as [Structure], + si.name as [Index], + stat.row_count AS [Rows], + stat.in_row_reserved_page_count * 8./1024./1024. as [In-Row GB], + stat.lob_reserved_page_count * 8./1024./1024. as [LOB GB], + p.partition_number AS [Partition #], + pf.name as [Partition Function], + CASE pf.boundary_value_on_right + WHEN 1 then 'Right / Lower' + ELSE 'Left / Upper' + END as [Boundary Type], + prv.value as [Boundary Point], + fg.name as [Filegroup] +FROM sys.partition_functions AS pf +JOIN sys.partition_schemes as ps on ps.function_id=pf.function_id +JOIN sys.indexes as si on si.data_space_id=ps.data_space_id +JOIN sys.objects as so on si.object_id = so.object_id +JOIN sys.schemas as sc on so.schema_id = sc.schema_id +JOIN sys.partitions as p on + si.object_id=p.object_id + and si.index_id=p.index_id +LEFT JOIN sys.partition_range_values as prv on prv.function_id=pf.function_id + and p.partition_number= + CASE pf.boundary_value_on_right WHEN 1 + THEN prv.boundary_id + 1 + ELSE prv.boundary_id + END + /* For left-based functions, partition_number = boundary_id, + for right-based functions we need to add 1 */ +JOIN sys.dm_db_partition_stats as stat on stat.object_id=p.object_id + and stat.index_id=p.index_id + and stat.index_id=p.index_id and stat.partition_id=p.partition_id + and stat.partition_number=p.partition_number +JOIN sys.allocation_units as au on au.container_id = p.hobt_id + and au.type_desc ='IN_ROW_DATA' + /* Avoiding double rows for columnstore indexes. */ + /* We can pick up LOB page count from partition_stats */ +JOIN sys.filegroups as fg on fg.data_space_id = au.data_space_id +ORDER BY [Schema.Table], [Index ID], [Partition Function], [Partition #]; +GO \ No newline at end of file diff --git a/Scripts/Which_Indexes_are_not_Used.sql b/Scripts/Which_Indexes_are_not_Used.sql new file mode 100644 index 00000000..4540a387 --- /dev/null +++ b/Scripts/Which_Indexes_are_not_Used.sql @@ -0,0 +1,46 @@ +/* +Author: Greg Larsen +Original links: http://www.databasejournal.com/features/mssql/which-indexes-are-not-used.html +*/ + +SELECT o.name Object_Name, + SCHEMA_NAME(o.schema_id) Schema_name, + i.name Index_name, + i.Type_Desc, + CASE WHEN (s.user_seeks > 0 + OR s.user_scans > 0 + OR s.user_lookups > 0) + AND s.user_updates > 0 + THEN 'USED AND UPDATED' + WHEN (s.user_seeks > 0 + OR s.user_scans > 0 + OR s.user_lookups > 0) + AND s.user_updates = 0 + THEN 'USED AND NOT UPDATED' + WHEN s.user_seeks IS NULL + AND s.user_scans IS NULL + AND s.user_lookups IS NULL + AND s.user_updates IS NULL + THEN 'NOT USED AND NOT UPDATED' + WHEN (s.user_seeks = 0 + AND s.user_scans = 0 + AND s.user_lookups = 0) + AND s.user_updates > 0 + THEN 'NOT USED AND UPDATED' + ELSE 'NONE OF THE ABOVE' + END AS Usage_Info, + COALESCE(s.user_seeks,0) AS user_seeks, + COALESCE(s.user_scans,0) AS user_scans, + COALESCE(s.user_lookups,0) AS user_lookups, + COALESCE(s.user_updates,0) AS user_updates + FROM sys.objects AS o + JOIN sys.indexes AS i + ON o.object_id = i.object_id + LEFT OUTER JOIN + sys.dm_db_index_usage_stats AS s + ON i.object_id = s.object_id + AND i.index_id = s.index_id + WHERE o.type = 'U' + -- Clustered and Non-Clustered indexes + AND i.type IN (1, 2) +ORDER BY user_seeks, user_scans, user_lookups, user_updates ASC; \ No newline at end of file diff --git a/Scripts/Which_databases_were_backed_up_and_when.sql b/Scripts/Which_databases_were_backed_up_and_when.sql new file mode 100644 index 00000000..9e58ab95 --- /dev/null +++ b/Scripts/Which_databases_were_backed_up_and_when.sql @@ -0,0 +1,79 @@ +/* +Author: Thomas Rushton +Original link: https://thelonedba.wordpress.com/2016/07/18/which-databases-were-backed-up-in-which-backup-task/ +*/ + +DECLARE @SQL VARCHAR(MAX); +DECLARE @RunStartedList VARCHAR(MAX); +DECLARE @NumDays INT; +SET @NumDays = 10; -- not doing this as a single line declare-define, as we might be running on older versions. +DECLARE @THROW50000 VARCHAR(200); +SET @THROW50000 = 'Still no backups on this server on last ' + CAST(@NumDays AS VARCHAR(50)) + ' days - please fix it!'; +DECLARE @debug BIT = 0; + +IF @NumDays > 0 + BEGIN + SELECT @NumDays = @NumDays * ( -1 ); + END; + +SELECT @RunStartedList = STUFF(( SELECT ', ' + QUOTENAME(CONVERT(VARCHAR(20), msdb.dbo.agent_datetime(jh.run_date, jh.run_time), 120)) + FROM msdb.dbo.sysjobhistory jh + LEFT JOIN msdb.dbo.sysjobs j ON j.job_id = jh.job_id + WHERE LOWER(j.name) LIKE '%backup%' + AND LOWER(j.name) LIKE '%full%' + AND jh.step_id = 0 + AND msdb.dbo.agent_datetime(jh.run_date, jh.run_time) >= DATEADD(DAY, @NumDays, GETDATE()) + ORDER BY msdb.dbo.agent_datetime(jh.run_date, jh.run_time) DESC + FOR + XML PATH('') + ), 1, 2, ''); + +IF @RunStartedList IS NULL THROW 50000, @THROW50000, 1; + +SELECT @SQL = ' +WITH JobRuns + AS ( SELECT jh.instance_id , + msdb.dbo.agent_datetime(jh.run_date, jh.run_time) AS RunStartDateTime , + DATEADD(SECOND, CONVERT(INT, RIGHT(''000000'' + CONVERT(VARCHAR(20), jh.run_duration), 2)), + DATEADD(MINUTE, CONVERT(INT, SUBSTRING(RIGHT(''000000'' + CONVERT(VARCHAR(20), jh.run_duration), 6), 3, 2)), + DATEADD(HOUR, CONVERT(INT, LEFT(RIGHT(''000000'' + CONVERT(VARCHAR(20), jh.run_duration), 6), 2)), + DATEADD(DAY, jh.run_duration / 1000000, msdb.dbo.agent_datetime(jh.run_date, jh.run_time))))) AS RunFinishDateTime + FROM msdb.dbo.sysjobhistory jh + LEFT JOIN msdb.dbo.sysjobs j ON j.job_id = jh.job_id + WHERE LOWER(j.name) LIKE ''%backup%'' + AND LOWER(j.name) LIKE ''%full%'' + AND jh.step_id = 0 + AND msdb.dbo.agent_datetime(jh.run_date, jh.run_time) >= DATEADD(DAY, ' + CONVERT(NVARCHAR(8), @NumDays) + ', GETDATE()) + ), + BackupsTaken + AS ( SELECT backup_start_date , + backup_finish_date , + database_name AS DBName + FROM msdb.dbo.backupset + WHERE type = ''D'' + ), + BackupPivot + AS ( SELECT DBName, ' + @RunStartedList + ' + FROM ( + SELECT CONVERT(VARCHAR(20), RunStartDateTime, 120) AS RunStarted, + BackupsTaken.DBName + FROM JobRuns + LEFT JOIN BackupsTaken ON JobRuns.RunStartDateTime <= BackupsTaken.backup_start_date + AND BackupsTaken.backup_finish_date <= JobRuns.RunFinishDateTime + WHERE JobRuns.RunStartDateTime >= DATEADD(DAY, ' + CONVERT(NVARCHAR(8), @NumDays) + ', GETDATE()) + ) AS src + PIVOT + ( COUNT(RunStarted) FOR RunStarted IN (' + @RunStartedList + ') ) AS pvt) +SELECT sd.name as [Sys.Databases.Name], + bp.* +FROM BackupPivot bp + FULL OUTER JOIN master.sys.databases sd ON bp.DBName = sd.name +ORDER BY sd.name , + bp.DBName + ; +'; + +IF @debug = 1 PRINT(@SQL); +ELSE +EXEC(@SQL); + diff --git a/Scripts/Which_sp_configure_Options_Clear_the_Plan_Cache.sql b/Scripts/Which_sp_configure_Options_Clear_the_Plan_Cache.sql new file mode 100644 index 00000000..08d18222 --- /dev/null +++ b/Scripts/Which_sp_configure_Options_Clear_the_Plan_Cache.sql @@ -0,0 +1,50 @@ +/* +Author: Brent Ozar +Source link: https://www.brentozar.com/archive/2017/09/sp_configure-options-clear-plan-cache/ +*/ + +DECLARE @string_to_execute NVARCHAR(1000), @current_name NVARCHAR(200), @current_value_in_use SQL_VARIANT, @current_maximum SQL_VARIANT; + +CREATE TABLE #configs (name NVARCHAR(200), value_in_use SQL_VARIANT, maximum SQL_VARIANT, clears_plan_cache BIT); +INSERT INTO #configs (name, value_in_use, maximum, clears_plan_cache) + SELECT name, value_in_use, maximum, 0 + FROM sys.configurations; + +DECLARE config_cursor CURSOR FOR + SELECT name, value_in_use, maximum + FROM #configs + WHERE name NOT IN ('default language', 'default full-text language', 'min server memory (MB)', 'user options'); + +OPEN config_cursor; +FETCH NEXT FROM config_cursor INTO @current_name, @current_value_in_use, @current_maximum; + + +WHILE @@FETCH_STATUS = 0 +BEGIN + /* Put something in the plan cache */ + + /* Run sp_configure to set it to maximum */ + SET @string_to_execute = 'sp_configure ''' + @current_name + ''', ''' + CAST(@current_maximum AS NVARCHAR(100)) + '''; RECONFIGURE WITH OVERRIDE;'; + EXEC(@string_to_execute); + + /* Check the plan cache */ + IF NOT EXISTS(SELECT * FROM sys.dm_exec_query_stats) + UPDATE #configs + SET clears_plan_cache = 1 + WHERE name = @current_name; + + /* Run sp_configure to set it back */ + SET @string_to_execute = 'sp_configure ''' + @current_name + ''', ''' + CAST(@current_value_in_use AS NVARCHAR(100)) + '''; RECONFIGURE WITH OVERRIDE;'; + EXEC(@string_to_execute); + + FETCH NEXT FROM config_cursor INTO @current_name, @current_value_in_use, @current_maximum; +END +CLOSE config_cursor; +DEALLOCATE config_cursor; + +SELECT name, clears_plan_cache + FROM #configs + WHERE clears_plan_cache = 1 + ORDER BY name; + +DROP TABLE #configs; diff --git a/Scripts/WhiteListIPTable.sql b/Scripts/WhiteListIPTable.sql new file mode 100644 index 00000000..6808921d --- /dev/null +++ b/Scripts/WhiteListIPTable.sql @@ -0,0 +1,59 @@ +/* +Author: Patrick Keisler +Original link: http://www.patrickkeisler.com/2017/05/create-whitelist-for-sql-server-updated.html +*/ + +USE master; +GO + +IF OBJECT_ID('dbo.WhiteList') IS NOT NULL + DROP TABLE dbo.WhiteList; +GO + +CREATE TABLE dbo.WhiteList +( + Id INT IDENTITY(1,1) PRIMARY KEY + ,LoginName VARCHAR(255) + ,HostName VARCHAR(255) + ,HostIpAddress VARCHAR(50) + ,Comments VARCHAR(2000) +); +GO + +GRANT SELECT ON dbo.WhiteList TO PUBLIC; +GO + +INSERT dbo.WhiteList(LoginName,HostName,HostIpAddress,Comments) +VALUES + ('*','ECHOBASE1','*','Any user from the workstation "ECHOBASE1" is allowed to connect, regardless of IP address.') + ,('WebSiteLogin','webserver1','192.168.100.55','Only the WebSiteLogin from webserver1 with an IP of 192.168.100.55 is allowed access.'); +GO + +CREATE TRIGGER WhiteListTrigger +ON ALL SERVER FOR LOGON +AS +BEGIN + DECLARE + @LoginName VARCHAR(255) = ORIGINAL_LOGIN() + ,@HostName VARCHAR(255) = HOST_NAME() + ,@HostIpAddress VARCHAR(50) = CONVERT(VARCHAR(50),CONNECTIONPROPERTY('client_net_address')); + + IF + ( + SELECT COUNT(*) FROM dbo.WhiteList + WHERE + ( + (LoginName = @LoginName) OR (LoginName = '*') + ) + AND + ( + (HostName = @HostName) OR (HostName = '*') + ) + AND + ( + (HostIpAddress = @HostIpAddress) OR (HostIpAddress = '*') + ) + ) = 0 + ROLLBACK; +END; +GO diff --git a/Scripts/Who_dropped_altered_table.sql b/Scripts/Who_dropped_altered_table.sql new file mode 100644 index 00000000..87368b70 --- /dev/null +++ b/Scripts/Who_dropped_altered_table.sql @@ -0,0 +1,34 @@ +/* +Author: Rebecca Lewis +Original link: http://www.sqlfingers.com/2018/10/who-dropped-that-table.html +*/ + +DECLARE @current NVARCHAR(255); +DECLARE @start NVARCHAR(255); +DECLARE @index INT; + +/* find your trace path */ +SELECT @current = path FROM sys.traces WHERE is_default = 1; + +SET @current = REVERSE(@current); +SET @index = PATINDEX('%\%', @current); +SET @current = REVERSE(@current); +SET @start = LEFT(@current, LEN(@current) - @index) + N'\log.trc'; + +/* query on the eventclasses for delete and alter */ +SELECT CASE t.EventClass + WHEN 164 THEN 'Object:Altered' + WHEN 47 THEN 'Object:Dropped' + END [Action] + , t.DatabaseName + , t.ObjectName + , t.HostName + , t.ApplicationName + , t.LoginName + , t.SPID + , t.StartTime +FROM::fn_trace_gettable(@start, DEFAULT) AS t +WHERE EventClass IN (164,47) +AND t.EventSubClass = 0 +AND t.DatabaseID <> 2 +ORDER BY t.StartTime; diff --git a/Scripts/Who_dropped_database.sql b/Scripts/Who_dropped_database.sql new file mode 100644 index 00000000..76dcfcfd --- /dev/null +++ b/Scripts/Who_dropped_database.sql @@ -0,0 +1,64 @@ +/* +Author: Jason Brimhall +Original link: http://jasonbrimhall.info/2016/09/09/database-dropped/ +*/ + +--DECLARE @DBName sysname = 'AdventureWorks2014'; +DECLARE @d1 DATETIME; +DECLARE @diff INT; + +SELECT ObjectName + , ObjectID + , DatabaseName + , StartTime + , EventClass + , EventSubClass + , ObjectType + , ServerName + , LoginName + , NTUserName + , ApplicationName + , CASE EventClass + WHEN 46 THEN 'CREATE' + WHEN 47 THEN 'DROP' + WHEN 164 THEN 'ALTER' + END AS DDLOperation + INTO #temp_trace + FROM sys.fn_trace_gettable(CONVERT(VARCHAR(150), + (SELECT REVERSE(SUBSTRING(REVERSE(path), + CHARINDEX('\',REVERSE(path)),256)) + 'log.trc' + FROM sys.traces + WHERE is_default = 1)), DEFAULT) as t + WHERE EventClass in (46, 47, 164) + AND EventSubClass = 0 + AND ObjectType = 16964-- i just want database related events + --AND DatabaseName = ISNULL(@DBName,DatabaseName) +; + +SELECT @d1 = MIN(StartTime) FROM #temp_trace; + +SET @diff= DATEDIFF(hh,@d1,GETDATE()); + +SELECT @diff AS HrsSinceFirstChange + , @d1 AS FirstChangeDate + , sv.name AS obj_type_desc + , tt.ObjectType + , tt.DDLOperation + , tt.DatabaseName + , tt.ObjectName + , tt.StartTime + , tt.EventClass + , tt.EventSubClass + , tt.ServerName + , tt.LoginName + , tt.NTUserName + , tt.ApplicationName + , (DENSE_RANK() OVER (ORDER BY ObjectName,ObjectType ) )%2 AS l1 + , (DENSE_RANK() OVER (ORDER BY ObjectName,ObjectType,StartTime ))%2 AS l2 + FROM #temp_trace tt + INNER JOIN sys.trace_events AS te ON tt.EventClass = te.trace_event_id + INNER JOIN sys.trace_subclass_values tsv ON tt.EventClass = tsv.trace_event_id AND tt.ObjectType = tsv.subclass_value + INNER JOIN master.dbo.spt_values sv ON tsv.subclass_value = sv.number AND sv.type = 'EOD' +ORDER BY StartTime DESC; + +DROP TABLE #temp_trace; diff --git a/Scripts/tempdb_Information.sql b/Scripts/tempdb_Information.sql new file mode 100644 index 00000000..0c0d3ecd --- /dev/null +++ b/Scripts/tempdb_Information.sql @@ -0,0 +1,63 @@ +/* +Author: Eric Russell +Original link: http://www.sqlservercentral.com/scripts/tempdb/151252/ +*/ +-- Query details about objects allocated in TEMPDB. This must be run in context of TEMPDB database. +SET LOCK_TIMEOUT 10000; +SET DEADLOCK_PRIORITY LOW; +SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; + +USE tempdb; + +SELECT * FROM +( +SELECT DISTINCT + DB_NAME() AS DatabaseName +, ps.object_id AS ObjectID +, o.type_desc AS ObjectType +, o.name AS ObjectName +, o.create_date AS ObjectCreated +, si.name AS IndexName +, CASE si.index_id + WHEN 0 THEN 'HEAP' + WHEN 1 THEN 'CLUSTERED' + ELSE 'NONCLUSTERED' + END AS IndexType +, ps.row_count AS RowsCount +, ((ps.reserved_page_count * 8024) / 1024 / 1024) AS ReservedMB +, trace.SPID +, er.start_time AS RequestStartTime +, trace.ApplicationName +, OBJECT_NAME( qt.objectid, qt.dbid ) AS ProcedureName +, SUBSTRING(CHAR(13) + SUBSTRING (qt.text,(er.statement_start_offset/2) + 1 + ,((CASE WHEN er.statement_end_offset = -1 + THEN LEN(CONVERT(NVARCHAR(MAX), qt.text)) * 2 + ELSE er.statement_end_offset + END - er.statement_start_offset)/2) + 1) + ,1,8000) AS StatementText +, trace.HostName +, trace.LoginName +FROM sys.dm_db_partition_stats ps +JOIN sys.tables AS o ON o.object_id = ps.OBJECT_ID AND o.is_ms_shipped = 0 +LEFT JOIN sys.indexes si ON si.object_id = o.object_id AND si.index_id = ps.index_id +LEFT JOIN +( +SELECT HostName, LoginName, SPID, ApplicationName, DatabaseName, ObjectID + , ROW_NUMBER() OVER (PARTITION BY ObjectID ORDER BY StartTime DESC) MostRecentObjectReference +FROM fn_trace_gettable( + ( + SELECT LEFT(path, LEN(path)-CHARINDEX('\', REVERSE(path))) + '\Log.trc' + FROM sys.traces + WHERE is_default = 1 + ), DEFAULT) +WHERE ObjectID IS NOT NULL +) trace + ON trace.ObjectID = ps.object_id + AND trace.DatabaseName = 'tempdb' + AND MostRecentObjectReference = 1 +LEFT JOIN sys.dm_exec_requests AS er + ON er.session_id = trace.SPID +OUTER APPLY sys.dm_exec_sql_text( er.sql_handle) AS qt +) AS T +--WHERE ReservedMB > 0 +ORDER BY ReservedMB DESC; diff --git a/Scripts/tempdb_usage.sql b/Scripts/tempdb_usage.sql new file mode 100644 index 00000000..2f53716a --- /dev/null +++ b/Scripts/tempdb_usage.sql @@ -0,0 +1,64 @@ +SET nocount ON; + +--INSERT INTO msdb.dbo.tempdb_log_usage_v2 +SELECT GETDATE() AS 'collection_time', + p.*, + t.* +FROM (SELECT ss.session_id AS 'ss_session_id', + ss.login_time, + ss.host_name, + ss.program_name, + ss.client_interface_name, + ss.login_name, + ss.status AS 'session_status', + ss.last_request_start_time, + ss.last_request_end_time, + er.start_time, + er.status AS 'request_status', + er.command, + qt.text AS 'parent_query', + Substring (qt.text, er.statement_start_offset / 2, ( + CASE + WHEN er.statement_end_offset = -1 THEN + Len(CONVERT(NVARCHAR(max), qt.text)) * + 2 + ELSE er.statement_end_offset + END - er.statement_start_offset ) / 2) AS 'individual_query', + er.sql_handle, + er.plan_handle, + er.database_id AS 'er_database_id', + er.open_transaction_count, + er.transaction_id AS 'er_transaction_id', + er.total_elapsed_time / 1000 AS'running_time_sec', + er.reads, + er.writes, + er.logical_reads + FROM sys.dm_exec_sessions AS ss + LEFT JOIN sys.dm_exec_requests AS er + ON ss.session_id = er.session_id + CROSS apply sys.dm_exec_sql_text(er.sql_handle)AS qt + WHERE ss.status = 'running') AS p + INNER JOIN (SELECT st.session_id, + st.transaction_id AS 'dbt_transaction_id', + dbt.database_id, + dbt.database_transaction_begin_time, + dbt.database_transaction_log_record_count, + dbt.database_transaction_log_bytes_used, + dbt.database_transaction_log_bytes_reserved, + dbs.log_reuse_wait_desc, + (SELECT cntr_value / 1024 AS 'log_usage_mb' + FROM sys.dm_os_performance_counters + WHERE object_name LIKE'%:Databases%' + AND counter_name = 'Log File(s) Used Size (KB)' + AND instance_name = 'tempdb') AS 'tempdb_log_usage_mb' + FROM sys.dm_tran_database_transactions AS dbt + INNER JOIN sys.dm_tran_session_transactions AS st + ON dbt.transaction_id = st.transaction_id + INNER JOIN sys.databases AS dbs WITH (nolock) + ON dbt.database_id = dbs.database_id + WHERE dbt.database_id = 2 + AND dbt.database_transaction_log_bytes_reserved > 0) AS t + ON p.ss_session_id = t.session_id + AND p.er_transaction_id = t.dbt_transaction_id +WHERE p.ss_session_id <> @@SPID +OPTION (recompile); diff --git a/Solution/Ola_Maintenance_Solution/CommandExecute.sql b/Solution/Ola_Maintenance_Solution/CommandExecute.sql index 9562f1fb..44b1109f 100644 Binary files a/Solution/Ola_Maintenance_Solution/CommandExecute.sql and b/Solution/Ola_Maintenance_Solution/CommandExecute.sql differ diff --git a/Solution/Ola_Maintenance_Solution/CommandLog.sql b/Solution/Ola_Maintenance_Solution/CommandLog.sql index c9177916..1030af10 100644 Binary files a/Solution/Ola_Maintenance_Solution/CommandLog.sql and b/Solution/Ola_Maintenance_Solution/CommandLog.sql differ diff --git a/Solution/Ola_Maintenance_Solution/DatabaseBackup.sql b/Solution/Ola_Maintenance_Solution/DatabaseBackup.sql index 557d79ad..b2f6d135 100644 Binary files a/Solution/Ola_Maintenance_Solution/DatabaseBackup.sql and b/Solution/Ola_Maintenance_Solution/DatabaseBackup.sql differ diff --git a/Solution/Ola_Maintenance_Solution/DatabaseIntegrityCheck.sql b/Solution/Ola_Maintenance_Solution/DatabaseIntegrityCheck.sql index d16a7ed4..dd9d41d7 100644 Binary files a/Solution/Ola_Maintenance_Solution/DatabaseIntegrityCheck.sql and b/Solution/Ola_Maintenance_Solution/DatabaseIntegrityCheck.sql differ diff --git a/Solution/Ola_Maintenance_Solution/IndexOptimize.sql b/Solution/Ola_Maintenance_Solution/IndexOptimize.sql index 484c2526..6b4ecc64 100644 Binary files a/Solution/Ola_Maintenance_Solution/IndexOptimize.sql and b/Solution/Ola_Maintenance_Solution/IndexOptimize.sql differ diff --git a/Solution/Ola_Maintenance_Solution/MaintenanceSolution.sql b/Solution/Ola_Maintenance_Solution/MaintenanceSolution.sql index 2e5b2d60..6db54818 100644 Binary files a/Solution/Ola_Maintenance_Solution/MaintenanceSolution.sql and b/Solution/Ola_Maintenance_Solution/MaintenanceSolution.sql differ diff --git a/Solution/Ola_Maintenance_Solution/README.md b/Solution/Ola_Maintenance_Solution/README.md index a86f21db..989e2074 100644 --- a/Solution/Ola_Maintenance_Solution/README.md +++ b/Solution/Ola_Maintenance_Solution/README.md @@ -1,24 +1,32 @@ # SQL Server Backup, Integrity Check, and Index and Statistics Maintenance -Original article: [ola.hallengren.com](https://ola.hallengren.com/organizations.html) +Source link: [ola.hallengren.com](https://ola.hallengren.com) -The SQL Server Maintenance Solution comprises scripts for running backups, integrity checks, and index and statistics maintenance on all editions of Microsoft SQL Server 2005, SQL Server 2008, SQL Server 2008 -R2, SQL Server 2012, and SQL Server 2014. The solution is based on stored procedures, the sqlcmd utility, and SQL Server Agent jobs. I designed the solution for the most mission-critical environments, and it is used in many [organizations](https://ola.hallengren.com/organizations.html) around the world. Numerous SQL Server community experts recommend the SQL Server Maintenance Solution, which has been a Gold winner in the [2013](http://sqlmag.com/sql-server/best-free-sql-server-tool-2013), [2012](http://sqlmag.com/sql-server/2012-sql-server-pro-editors-best-and-community-choice-awards), [2011](http://sqlmag.com/sql-server/2011-sql-server-magazine-editors-best-and-community-choice-awards), +The SQL Server Maintenance Solution comprises scripts for running backups, integrity checks, and index and statistics maintenance +on all editions of Microsoft SQL Server 2005, SQL Server 2008, SQL Server 2008 R2, SQL Server 2012, SQL Server 2014 and SQL Server 2016. +The solution is based on stored procedures, the sqlcmd utility, and SQL Server Agent jobs. +Ola Hallengren designed the solution for the most mission-critical environments, and it is used in many +[organizations](https://ola.hallengren.com/organizations.html) around the world. +Numerous SQL Server community experts recommend the SQL Server Maintenance Solution, which has been a Gold winner in the +[2013](http://sqlmag.com/sql-server/best-free-sql-server-tool-2013), +[2012](http://sqlmag.com/sql-server/2012-sql-server-pro-editors-best-and-community-choice-awards), +[2011](http://sqlmag.com/sql-server/2011-sql-server-magazine-editors-best-and-community-choice-awards), and [2010](http://sqlmag.com/sql-server/2010-sql-server-magazine-editors-best-and-community-choice-awards) -SQL Server Magazine Awards. The SQL Server Maintenance Solution is [free](https://ola.hallengren.com/license.html). +SQL Server Magazine Awards. +The SQL Server Maintenance Solution is [free](https://ola.hallengren.com/license.html). ## Getting Started Download [MaintenanceSolution.sql](/Ola_Maintenance_Solution/MaintenanceSolution.sql). -This script creates all the objects and jobs that you need. -Learn more about using the SQL Server Maintenance Solution: +This script creates all the objects and jobs that you need. Learn more about using the SQL Server Maintenance Solution. + +You can also download the objects as separate scripts: - [DatabaseBackup](/Ola_Maintenance_Solution/DatabaseBackup.sql): SQL Server Backup - [DatabaseIntegrityCheck](/Ola_Maintenance_Solution/DatabaseIntegrityCheck.sql): SQL Server Integrity Check - [IndexOptimize](/Ola_Maintenance_Solution/IndexOptimize.sql): SQL Server Index and Statistics Maintenance - [CommandExecute](/Ola_Maintenance_Solution/CommandExecute.sql): Stored procedure to execute and log commands - [CommandLog](/Ola_Maintenance_Solution/CommandLog.sql): Table to log commands -Note that you always need CommandExecute; DatabaseBackup, DatabaseIntegrityCheck, and IndexOptimize are using it. You need CommandLog if you are going to use the option to log commands to a table. - -The SQL Server Maintenance Solution is supported on SQL Server 2005, SQL Server 2008, SQL Server 2008 R2, SQL Server 2012, and SQL Server 2014. +Note that you always need CommandExecute, DatabaseBackup, DatabaseIntegrityCheck, and IndexOptimize are using it. +You need CommandLog if you are going to use the option to log commands to a table. diff --git a/Solution/README.md b/Solution/README.md index 91913662..7f1a11be 100644 --- a/Solution/README.md +++ b/Solution/README.md @@ -3,5 +3,4 @@ - [dbWarden](/Solution/dbWarden) a free SQL Server Monitoring Package (by Stevie Rounds and Michael Rounds) - [Base line Collector script](/Solution/BaselineCollector) (by Robert Virag) - [Ola Maintenance Solution](/Solution/Ola_Maintenance_Solution) (by Ola Hallengren) - - [SQLQueryStress](/Solution/SQLQueryStress) (by Adam Machanic) - [SysJobHistory](/Solution/SysJobHistory) (by David Wentzel) diff --git a/Solution/SQLQueryStress/.gitignore b/Solution/SQLQueryStress/.gitignore deleted file mode 100644 index 57a1574c..00000000 --- a/Solution/SQLQueryStress/.gitignore +++ /dev/null @@ -1,196 +0,0 @@ -## Ignore Visual Studio temporary files, build results, and -## files generated by popular Visual Studio add-ons. - -# User-specific files -*.suo -*.user -*.userosscache -*.sln.docstates - -# User-specific files (MonoDevelop/Xamarin Studio) -*.userprefs - -# Build results -[Dd]ebug/ -[Dd]ebugPublic/ -[Rr]elease/ -[Rr]eleases/ -x64/ -x86/ -build/ -bld/ -[Bb]in/ -[Oo]bj/ - -# Visual Studo 2015 cache/options directory -.vs/ - -# MSTest test Results -[Tt]est[Rr]esult*/ -[Bb]uild[Ll]og.* - -# NUNIT -*.VisualState.xml -TestResult.xml - -# Build Results of an ATL Project -[Dd]ebugPS/ -[Rr]eleasePS/ -dlldata.c - -*_i.c -*_p.c -*_i.h -*.ilk -*.meta -*.obj -*.pch -*.pdb -*.pgc -*.pgd -*.rsp -*.sbr -*.tlb -*.tli -*.tlh -*.tmp -*.tmp_proj -*.log -*.vspscc -*.vssscc -.builds -*.pidb -*.svclog -*.scc - -# Chutzpah Test files -_Chutzpah* - -# Visual C++ cache files -ipch/ -*.aps -*.ncb -*.opensdf -*.sdf -*.cachefile - -# Visual Studio profiler -*.psess -*.vsp -*.vspx - -# TFS 2012 Local Workspace -$tf/ - -# Guidance Automation Toolkit -*.gpState - -# ReSharper is a .NET coding add-in -_ReSharper*/ -*.[Rr]e[Ss]harper -*.DotSettings.user - -# JustCode is a .NET coding addin-in -.JustCode - -# TeamCity is a build add-in -_TeamCity* - -# DotCover is a Code Coverage Tool -*.dotCover - -# NCrunch -_NCrunch_* -.*crunch*.local.xml - -# MightyMoose -*.mm.* -AutoTest.Net/ - -# Web workbench (sass) -.sass-cache/ - -# Installshield output folder -[Ee]xpress/ - -# DocProject is a documentation generator add-in -DocProject/buildhelp/ -DocProject/Help/*.HxT -DocProject/Help/*.HxC -DocProject/Help/*.hhc -DocProject/Help/*.hhk -DocProject/Help/*.hhp -DocProject/Help/Html2 -DocProject/Help/html - -# Click-Once directory -publish/ - -# Publish Web Output -*.[Pp]ublish.xml -*.azurePubxml -# TODO: Comment the next line if you want to checkin your web deploy settings -# but database connection strings (with potential passwords) will be unencrypted -*.pubxml -*.publishproj - -# NuGet Packages -*.nupkg -# The packages folder can be ignored because of Package Restore -**/packages/* -# except build/, which is used as an MSBuild target. -!**/packages/build/ -# Uncomment if necessary however generally it will be regenerated when needed -#!**/packages/repositories.config - -# Windows Azure Build Output -csx/ -*.build.csdef - -# Windows Store app package directory -AppPackages/ - -# Others -*.[Cc]ache -ClientBin/ -[Ss]tyle[Cc]op.* -~$* -*~ -*.dbmdl -*.dbproj.schemaview -*.pfx -*.publishsettings -node_modules/ -bower_components/ - -# RIA/Silverlight projects -Generated_Code/ - -# Backup & report files from converting an old project file -# to a newer Visual Studio version. Backup files are not needed, -# because we have git ;-) -_UpgradeReport_Files/ -Backup*/ -UpgradeLog*.XML -UpgradeLog*.htm - -# SQL Server files -*.mdf -*.ldf - -# Business Intelligence projects -*.rdl.data -*.bim.layout -*.bim_*.settings - -# Microsoft Fakes -FakesAssemblies/ - -# Node.js Tools for Visual Studio -.ntvs_analysis.dat - -# Visual Studio 6 build log -*.plg - -# Visual Studio 6 workspace options file -*.opt diff --git a/Solution/SQLQueryStress/CONTRIBUTING.md b/Solution/SQLQueryStress/CONTRIBUTING.md deleted file mode 100644 index 92a947de..00000000 --- a/Solution/SQLQueryStress/CONTRIBUTING.md +++ /dev/null @@ -1,24 +0,0 @@ -## Contributing Issues - -### Before Submitting an Issue -First, please do a search in open issues to see if the issue or feature request has already been filed. If there is an issue add your comments to this issue. - - -## Writing Good Bug Reports and Feature Requests - -The more information you can provide, the more likely someone will be successful reproducing the issue and finding a fix. Whenever possible: - -* Provide reproducable steps, what the result of the steps was, an what you would have expected. -* Screen shots of the issue/input/any error messages -* Description of what you expect to happen -* Animated GIFs -* Code that demonstrates the issue - -## Contributing Code - -The general development process is: - -1. Fork this repo and clone it to your workstation. -2. Create a feature branch for your change. -3. Write code and tests. -4. Push your feature branch to github and open a pull request against master. diff --git a/Solution/SQLQueryStress/README.md b/Solution/SQLQueryStress/README.md deleted file mode 100644 index 0212f793..00000000 --- a/Solution/SQLQueryStress/README.md +++ /dev/null @@ -1,8 +0,0 @@ -# SqlQueryStress -SQL query stress simulator created by Adam Machanic http://sqlblog.com/blogs/adam_machanic/archive/2016/01/04/sqlquerystress-the-source-code.aspx - -The goal of this tool was to enable the user to test a single query under some form of load -- up to 200 simultaneous threads. - -## Contributing - -Any and all contributions are welcome! Please see the full [contributing guide](CONTRIBUTING.md) for more details. diff --git a/Solution/SQLQueryStress/src/SQLQueryStress.sln b/Solution/SQLQueryStress/src/SQLQueryStress.sln deleted file mode 100644 index 6bf56fc0..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress.sln +++ /dev/null @@ -1,22 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 14 -VisualStudioVersion = 14.0.23107.0 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SQLQueryStress", "SQLQueryStress\SQLQueryStress.csproj", "{02A166A4-EE64-432F-AA6E-08C7984BD7BC}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {02A166A4-EE64-432F-AA6E-08C7984BD7BC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {02A166A4-EE64-432F-AA6E-08C7984BD7BC}.Debug|Any CPU.Build.0 = Debug|Any CPU - {02A166A4-EE64-432F-AA6E-08C7984BD7BC}.Release|Any CPU.ActiveCfg = Release|Any CPU - {02A166A4-EE64-432F-AA6E-08C7984BD7BC}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/AboutBox.Designer.cs b/Solution/SQLQueryStress/src/SQLQueryStress/AboutBox.Designer.cs deleted file mode 100644 index 4daa5c34..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/AboutBox.Designer.cs +++ /dev/null @@ -1,193 +0,0 @@ -namespace SQLQueryStress -{ - partial class AboutBox - { - /// - /// Required designer variable. - /// - private System.ComponentModel.IContainer components = null; - - /// - /// Clean up any resources being used. - /// - protected override void Dispose(bool disposing) - { - if (disposing && (components != null)) - { - components.Dispose(); - } - base.Dispose(disposing); - } - - #region Windows Form Designer generated code - - /// - /// Required method for Designer support - do not modify - /// the contents of this method with the code editor. - /// - private void InitializeComponent() - { - System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(AboutBox)); - this.tableLayoutPanel = new System.Windows.Forms.TableLayoutPanel(); - this.logoPictureBox = new System.Windows.Forms.PictureBox(); - this.labelProductName = new System.Windows.Forms.Label(); - this.labelVersion = new System.Windows.Forms.Label(); - this.labelCopyright = new System.Windows.Forms.Label(); - this.labelCompanyName = new System.Windows.Forms.Label(); - this.textBoxDescription = new System.Windows.Forms.TextBox(); - this.okButton = new System.Windows.Forms.Button(); - this.tableLayoutPanel.SuspendLayout(); - ((System.ComponentModel.ISupportInitialize)(this.logoPictureBox)).BeginInit(); - this.SuspendLayout(); - // - // tableLayoutPanel - // - this.tableLayoutPanel.ColumnCount = 2; - this.tableLayoutPanel.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 33F)); - this.tableLayoutPanel.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 67F)); - this.tableLayoutPanel.Controls.Add(this.logoPictureBox, 0, 0); - this.tableLayoutPanel.Controls.Add(this.labelProductName, 1, 0); - this.tableLayoutPanel.Controls.Add(this.labelVersion, 1, 1); - this.tableLayoutPanel.Controls.Add(this.labelCopyright, 1, 2); - this.tableLayoutPanel.Controls.Add(this.labelCompanyName, 1, 3); - this.tableLayoutPanel.Controls.Add(this.textBoxDescription, 1, 4); - this.tableLayoutPanel.Controls.Add(this.okButton, 1, 5); - this.tableLayoutPanel.Dock = System.Windows.Forms.DockStyle.Fill; - this.tableLayoutPanel.Location = new System.Drawing.Point(9, 9); - this.tableLayoutPanel.Name = "tableLayoutPanel"; - this.tableLayoutPanel.RowCount = 6; - this.tableLayoutPanel.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 10F)); - this.tableLayoutPanel.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 10F)); - this.tableLayoutPanel.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 10F)); - this.tableLayoutPanel.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 10F)); - this.tableLayoutPanel.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 50F)); - this.tableLayoutPanel.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 10F)); - this.tableLayoutPanel.Size = new System.Drawing.Size(417, 265); - this.tableLayoutPanel.TabIndex = 0; - // - // logoPictureBox - // - this.logoPictureBox.Dock = System.Windows.Forms.DockStyle.Fill; - this.logoPictureBox.Image = ((System.Drawing.Image)(resources.GetObject("logoPictureBox.Image"))); - this.logoPictureBox.Location = new System.Drawing.Point(3, 3); - this.logoPictureBox.Name = "logoPictureBox"; - this.tableLayoutPanel.SetRowSpan(this.logoPictureBox, 6); - this.logoPictureBox.Size = new System.Drawing.Size(131, 259); - this.logoPictureBox.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage; - this.logoPictureBox.TabIndex = 12; - this.logoPictureBox.TabStop = false; - // - // labelProductName - // - this.labelProductName.Dock = System.Windows.Forms.DockStyle.Fill; - this.labelProductName.Location = new System.Drawing.Point(143, 0); - this.labelProductName.Margin = new System.Windows.Forms.Padding(6, 0, 3, 0); - this.labelProductName.MaximumSize = new System.Drawing.Size(0, 17); - this.labelProductName.Name = "labelProductName"; - this.labelProductName.Size = new System.Drawing.Size(271, 17); - this.labelProductName.TabIndex = 19; - this.labelProductName.Text = "SQLQueryStress"; - this.labelProductName.TextAlign = System.Drawing.ContentAlignment.MiddleLeft; - // - // labelVersion - // - this.labelVersion.Dock = System.Windows.Forms.DockStyle.Fill; - this.labelVersion.Location = new System.Drawing.Point(143, 26); - this.labelVersion.Margin = new System.Windows.Forms.Padding(6, 0, 3, 0); - this.labelVersion.MaximumSize = new System.Drawing.Size(0, 17); - this.labelVersion.Name = "labelVersion"; - this.labelVersion.Size = new System.Drawing.Size(271, 17); - this.labelVersion.TabIndex = 0; - this.labelVersion.Text = "Version 0.0.1"; - this.labelVersion.TextAlign = System.Drawing.ContentAlignment.MiddleLeft; - // - // labelCopyright - // - this.labelCopyright.Dock = System.Windows.Forms.DockStyle.Fill; - this.labelCopyright.Location = new System.Drawing.Point(143, 52); - this.labelCopyright.Margin = new System.Windows.Forms.Padding(6, 0, 3, 0); - this.labelCopyright.MaximumSize = new System.Drawing.Size(0, 17); - this.labelCopyright.Name = "labelCopyright"; - this.labelCopyright.Size = new System.Drawing.Size(271, 17); - this.labelCopyright.TabIndex = 21; - this.labelCopyright.Text = "Copyright Adam Machanic 2006"; - this.labelCopyright.TextAlign = System.Drawing.ContentAlignment.MiddleLeft; - // - // labelCompanyName - // - this.labelCompanyName.Dock = System.Windows.Forms.DockStyle.Fill; - this.labelCompanyName.Location = new System.Drawing.Point(143, 78); - this.labelCompanyName.Margin = new System.Windows.Forms.Padding(6, 0, 3, 0); - this.labelCompanyName.MaximumSize = new System.Drawing.Size(0, 17); - this.labelCompanyName.Name = "labelCompanyName"; - this.labelCompanyName.Size = new System.Drawing.Size(271, 17); - this.labelCompanyName.TabIndex = 22; - this.labelCompanyName.Text = "Company Name"; - this.labelCompanyName.TextAlign = System.Drawing.ContentAlignment.MiddleLeft; - // - // textBoxDescription - // - this.textBoxDescription.Cursor = System.Windows.Forms.Cursors.Hand; - this.textBoxDescription.Dock = System.Windows.Forms.DockStyle.Fill; - this.textBoxDescription.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Underline, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.textBoxDescription.ForeColor = System.Drawing.SystemColors.ActiveCaption; - this.textBoxDescription.Location = new System.Drawing.Point(143, 107); - this.textBoxDescription.Margin = new System.Windows.Forms.Padding(6, 3, 3, 3); - this.textBoxDescription.Multiline = true; - this.textBoxDescription.Name = "textBoxDescription"; - this.textBoxDescription.ReadOnly = true; - this.textBoxDescription.ScrollBars = System.Windows.Forms.ScrollBars.Both; - this.textBoxDescription.Size = new System.Drawing.Size(271, 126); - this.textBoxDescription.TabIndex = 23; - this.textBoxDescription.TabStop = false; - this.textBoxDescription.Text = "Please visit http://www.datamanipulation.net/SQLQueryStress for documentation and" + - " updates!"; - this.textBoxDescription.Click += new System.EventHandler(this.textBoxDescription_Click); - // - // okButton - // - this.okButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right))); - this.okButton.DialogResult = System.Windows.Forms.DialogResult.Cancel; - this.okButton.Location = new System.Drawing.Point(339, 239); - this.okButton.Name = "okButton"; - this.okButton.Size = new System.Drawing.Size(75, 23); - this.okButton.TabIndex = 24; - this.okButton.Text = "&OK"; - this.okButton.Click += new System.EventHandler(this.okButton_Click); - // - // AboutBox - // - this.AcceptButton = this.okButton; - this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); - this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; - this.CancelButton = this.okButton; - this.ClientSize = new System.Drawing.Size(435, 283); - this.Controls.Add(this.tableLayoutPanel); - this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog; - this.MaximizeBox = false; - this.MinimizeBox = false; - this.Name = "AboutBox"; - this.Padding = new System.Windows.Forms.Padding(9); - this.ShowIcon = false; - this.ShowInTaskbar = false; - this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent; - this.Text = "AboutBox"; - this.tableLayoutPanel.ResumeLayout(false); - this.tableLayoutPanel.PerformLayout(); - ((System.ComponentModel.ISupportInitialize)(this.logoPictureBox)).EndInit(); - this.ResumeLayout(false); - - } - - #endregion - - private System.Windows.Forms.TableLayoutPanel tableLayoutPanel; - private System.Windows.Forms.PictureBox logoPictureBox; - private System.Windows.Forms.Label labelProductName; - private System.Windows.Forms.Label labelVersion; - private System.Windows.Forms.Label labelCopyright; - private System.Windows.Forms.Label labelCompanyName; - private System.Windows.Forms.TextBox textBoxDescription; - private System.Windows.Forms.Button okButton; - } -} diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/AboutBox.cs b/Solution/SQLQueryStress/src/SQLQueryStress/AboutBox.cs deleted file mode 100644 index 149902fa..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/AboutBox.cs +++ /dev/null @@ -1,164 +0,0 @@ -#region - -using System; -using System.Diagnostics; -using System.IO; -using System.Reflection; -using System.Windows.Forms; - -#endregion - -namespace SQLQueryStress -{ - internal partial class AboutBox : Form - { - public AboutBox() - { - InitializeComponent(); - - // Initialize the AboutBox to display the product information from the assembly information. - // Change assembly information settings for your application through either: - // - Project->Properties->Application->Assembly Information - // - AssemblyInfo.cs - Text = string.Format("About {0}", AssemblyTitle); - labelProductName.Text = AssemblyProduct; - labelVersion.Text = string.Format("Version {0}", AssemblyVersion); - labelCopyright.Text = AssemblyCopyright; - labelCompanyName.Text = AssemblyCompany; - /*this.textBoxDescription.Text = //AssemblyDescription; - @"SQL Server Query Load Test Tool - -- Enter the query or batch to be tested in the Query textbox -- The query will be run concurrently by the number of threads specified in the Number of Threads textbox -- Each thread will run the query as many times as specified in the Number of Iterations textbox -- Parameter Substitution allows you to dynamically replace variables in your query with values taken from another query. For instance, you can define the following batch: - -SELECT * -FROM sys.databases -WHERE [name] = @db_name - -If you then go into the Parameter Substitution window, you can enter the following query into the Parameter Query textbox: - -SELECT [name] -FROM sys.databases - -Click the Get Columns button and use the grid to assign the @db_name parameter to the 'name' column. During the test, the values used for @db_name will be taken from the 'name' column. If there are more iterations than unique values, the tool will loop back to the beginning of the list and will keep looping until the test is complete. - -- Once queries and optional parameterization are complete, use the GO button to start the test. The following information is reported by the tool: - -. Elapsed Time: The amount of time spent, starting the moment the GO button is clicked and ending the moment the test stops -. Iterations Completed: The number of times the query has been executed, aggregated for all threads -. Client Seconds/Iteration (Avg): The average amount of time the client waited for each execution of the query being tested. This timing is taken on the client. -. Total Exceptions: The number of exceptions that occurred. Click on the ellipsis button to see the messages of the actual exceptions. -. CPU Seconds/Iteration (Avg): The average number of seconds of CPU time spent processing the batch, as reported by SQL Server. This number includes both processing and execution time. -. Actual Seconds/Iteration (Avg): The average number of seconds elapsed for execution of the batch, as reported by SQL Server. This number includes both processing and execution time. -. Logical Reads/Iteration (Avg): The average number of logical reads required by the batch, as reported by SQL Server. - -To stop testing, click the Cancel button. Note that cancellation of a test may take some time if several threads are being used, as the test will not be stopped until all threads have successfully been aborted. The UI may continue to update while the test is being cancelled, as additional data is collected. - -Settings for a test, including the query, database information, and parameter assignments, can be saved and re-loaded using the File menu. Keep in mind that all database information is persisted -- do not save sensitive database passwords!"; - */ - } - - public sealed override string Text - { - get { return base.Text; } - set { base.Text = value; } - } - - private void okButton_Click(object sender, EventArgs e) - { - Dispose(); - } - - private void textBoxDescription_Click(object sender, EventArgs e) - { - Process.Start("https://github.com/ErikEJ/SqlQueryStress"); - } - - #region Assembly Attribute Accessors - - public string AssemblyTitle - { - get - { - // Get all Title attributes on this assembly - var attributes = Assembly.GetExecutingAssembly().GetCustomAttributes(typeof (AssemblyTitleAttribute), false); - // If there is at least one Title attribute - if (attributes.Length > 0) - { - // Select the first one - var titleAttribute = (AssemblyTitleAttribute) attributes[0]; - // If it is not an empty string, return it - if (titleAttribute.Title != "") - return titleAttribute.Title; - } - // If there was no Title attribute, or if the Title attribute was the empty string, return the .exe name - return Path.GetFileNameWithoutExtension(Assembly.GetExecutingAssembly().CodeBase); - } - } - - public string AssemblyVersion - { - get { return Assembly.GetExecutingAssembly().GetName().Version.ToString(); } - } - - public string AssemblyDescription - { - get - { - // Get all Description attributes on this assembly - var attributes = Assembly.GetExecutingAssembly().GetCustomAttributes(typeof (AssemblyDescriptionAttribute), false); - // If there aren't any Description attributes, return an empty string - if (attributes.Length == 0) - return ""; - // If there is a Description attribute, return its value - return ((AssemblyDescriptionAttribute) attributes[0]).Description; - } - } - - public string AssemblyProduct - { - get - { - // Get all Product attributes on this assembly - var attributes = Assembly.GetExecutingAssembly().GetCustomAttributes(typeof (AssemblyProductAttribute), false); - // If there aren't any Product attributes, return an empty string - if (attributes.Length == 0) - return ""; - // If there is a Product attribute, return its value - return ((AssemblyProductAttribute) attributes[0]).Product; - } - } - - public string AssemblyCopyright - { - get - { - // Get all Copyright attributes on this assembly - var attributes = Assembly.GetExecutingAssembly().GetCustomAttributes(typeof (AssemblyCopyrightAttribute), false); - // If there aren't any Copyright attributes, return an empty string - if (attributes.Length == 0) - return ""; - // If there is a Copyright attribute, return its value - return ((AssemblyCopyrightAttribute) attributes[0]).Copyright; - } - } - - public string AssemblyCompany - { - get - { - // Get all Company attributes on this assembly - var attributes = Assembly.GetExecutingAssembly().GetCustomAttributes(typeof (AssemblyCompanyAttribute), false); - // If there aren't any Company attributes, return an empty string - if (attributes.Length == 0) - return ""; - // If there is a Company attribute, return its value - return ((AssemblyCompanyAttribute) attributes[0]).Company; - } - } - - #endregion - } -} \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/AboutBox.resx b/Solution/SQLQueryStress/src/SQLQueryStress/AboutBox.resx deleted file mode 100644 index 6dd25dcb..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/AboutBox.resx +++ /dev/null @@ -1,610 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - text/microsoft-resx - - - 2.0 - - - System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 - - - System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 - - - - - iVBORw0KGgoAAAANSUhEUgAAAHgAAAEGCAIAAAAhWcaAAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8 - YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAcQNJREFUeF7tfQdc - lFfa/ez/K/tlExUVmN7ovQ1D74Kg2BWs2CvYEVEEG0VALHTpAip2xd57jzHGmF5MsokxdbPV/XY13//c - 9xleX2YAMTGJZnfy/PiNiATOnDn3POXe+xtZpew3v/mNCP/9v9/85j9+g4+i/xDhyf/7z//HnvzXb0T/ - 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- - \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/App.config b/Solution/SQLQueryStress/src/SQLQueryStress/App.config deleted file mode 100644 index 928896d2..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/BlockedBoundedBuffer.cs b/Solution/SQLQueryStress/src/SQLQueryStress/BlockedBoundedBuffer.cs deleted file mode 100644 index 5b8f5376..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/BlockedBoundedBuffer.cs +++ /dev/null @@ -1,91 +0,0 @@ -#region - -using System.Threading; - -#endregion - -namespace SQLQueryStress -{ - public class BlockedBoundedBuffer - { - private readonly T[] _buffer; - private int _count; - - private int _readNumber; - private int _writeNumber; - - public BlockedBoundedBuffer(int bufferSize) - { - _buffer = new T[bufferSize]; - _readNumber = -1; - _writeNumber = -1; - _count = 0; - } - - public T Dequeue() - { - while (_count == 0) - { - lock (_buffer) - { - Monitor.Wait(_buffer); - } - } - - int read; - - do - { - read = Interlocked.Increment(ref _readNumber); - - if (read >= _buffer.Length) - { - lock (_buffer) - { - if (read >= _buffer.Length) - { - Interlocked.Exchange(ref _readNumber, 0); - Interlocked.Exchange(ref _writeNumber, -1); - Monitor.PulseAll(_buffer); - } - } - } - else - break; - } while (true); - - Interlocked.Decrement(ref _count); - - return _buffer[read]; - } - - public void Enqueue(T input) - { - int write; - - do - { - write = Interlocked.Increment(ref _writeNumber); - if (write >= _buffer.Length) - { - lock (_buffer) - { - Monitor.Wait(_buffer); - } - } - else - break; - } while (true); - - _buffer[write] = input; - - if (Interlocked.Increment(ref _count) == 1) - { - lock (_buffer) - { - Monitor.PulseAll(_buffer); - } - } - } - } -} \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/DataViewer.Designer.cs b/Solution/SQLQueryStress/src/SQLQueryStress/DataViewer.Designer.cs deleted file mode 100644 index 486469ec..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/DataViewer.Designer.cs +++ /dev/null @@ -1,71 +0,0 @@ -namespace SQLQueryStress -{ - partial class DataViewer - { - /// - /// Required designer variable. - /// - private System.ComponentModel.IContainer components = null; - - /// - /// Clean up any resources being used. - /// - /// true if managed resources should be disposed; otherwise, false. - protected override void Dispose(bool disposing) - { - if (disposing && (components != null)) - { - components.Dispose(); - } - base.Dispose(disposing); - } - - #region Windows Form Designer generated code - - /// - /// Required method for Designer support - do not modify - /// the contents of this method with the code editor. - /// - private void InitializeComponent() - { - this.dataGridView1 = new System.Windows.Forms.DataGridView(); - ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit(); - this.SuspendLayout(); - // - // dataGridView1 - // - this.dataGridView1.AllowUserToAddRows = false; - this.dataGridView1.AllowUserToDeleteRows = false; - this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize; - this.dataGridView1.EditMode = System.Windows.Forms.DataGridViewEditMode.EditProgrammatically; - this.dataGridView1.Location = new System.Drawing.Point(12, 12); - this.dataGridView1.Name = "dataGridView1"; - this.dataGridView1.ReadOnly = true; - this.dataGridView1.ShowEditingIcon = false; - this.dataGridView1.Size = new System.Drawing.Size(629, 331); - this.dataGridView1.TabIndex = 0; - // - // DataViewer - // - this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); - this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; - this.ClientSize = new System.Drawing.Size(653, 355); - this.Controls.Add(this.dataGridView1); - this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog; - this.MaximizeBox = false; - this.MinimizeBox = false; - this.Name = "DataViewer"; - this.ShowIcon = false; - this.ShowInTaskbar = false; - this.Text = "Form2"; - this.Load += new System.EventHandler(this.Form2_Load); - ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit(); - this.ResumeLayout(false); - - } - - #endregion - - private System.Windows.Forms.DataGridView dataGridView1; - } -} \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/DataViewer.cs b/Solution/SQLQueryStress/src/SQLQueryStress/DataViewer.cs deleted file mode 100644 index 63bbd70e..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/DataViewer.cs +++ /dev/null @@ -1,35 +0,0 @@ -#region - -using System; -using System.Data; -using System.Windows.Forms; - -#endregion - -namespace SQLQueryStress -{ - public partial class DataViewer : Form - { - public DataViewer() - { - InitializeComponent(); - } - - public DataTable DataView { get; set; } - - private void Form2_Load(object sender, EventArgs e) - { - dataGridView1.DataSource = DataView; - - var columnWidth = (dataGridView1.Width - 41) / DataView.Columns.Count; - - foreach (DataGridViewColumn col in dataGridView1.Columns) - col.Width = columnWidth; - } - - public void Repaint() - { - dataGridView1.Invalidate(); - } - } -} \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/DataViewer.resx b/Solution/SQLQueryStress/src/SQLQueryStress/DataViewer.resx deleted file mode 100644 index 19dc0dd8..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/DataViewer.resx +++ /dev/null @@ -1,120 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - text/microsoft-resx - - - 2.0 - - - System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 - - - System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 - - \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/DatabaseSelect.Designer.cs b/Solution/SQLQueryStress/src/SQLQueryStress/DatabaseSelect.Designer.cs deleted file mode 100644 index 8b452de1..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/DatabaseSelect.Designer.cs +++ /dev/null @@ -1,406 +0,0 @@ -namespace SQLQueryStress -{ - partial class DatabaseSelect - { - /// - /// Required designer variable. - /// - private System.ComponentModel.IContainer components = null; - - /// - /// Clean up any resources being used. - /// - /// true if managed resources should be disposed; otherwise, false. - protected override void Dispose(bool disposing) - { - if (disposing && (components != null)) - { - components.Dispose(); - } - base.Dispose(disposing); - } - - #region Windows Form Designer generated code - - /// - /// Required method for Designer support - do not modify - /// the contents of this method with the code editor. - /// - private void InitializeComponent() - { - this.label1 = new System.Windows.Forms.Label(); - this.server_textBox = new System.Windows.Forms.TextBox(); - this.authentication_comboBox = new System.Windows.Forms.ComboBox(); - this.login_textBox = new System.Windows.Forms.TextBox(); - this.password_textBox = new System.Windows.Forms.TextBox(); - this.label2 = new System.Windows.Forms.Label(); - this.label3 = new System.Windows.Forms.Label(); - this.label4 = new System.Windows.Forms.Label(); - this.cancel_button = new System.Windows.Forms.Button(); - this.test_button = new System.Windows.Forms.Button(); - this.ok_button = new System.Windows.Forms.Button(); - this.db_comboBox = new System.Windows.Forms.ComboBox(); - this.label5 = new System.Windows.Forms.Label(); - this.groupBox1 = new System.Windows.Forms.GroupBox(); - this.groupBox2 = new System.Windows.Forms.GroupBox(); - this.pm_test_button = new System.Windows.Forms.Button(); - this.shareSettings_checkBox = new System.Windows.Forms.CheckBox(); - this.pm_db_comboBox = new System.Windows.Forms.ComboBox(); - this.label6 = new System.Windows.Forms.Label(); - this.pm_password_textBox = new System.Windows.Forms.TextBox(); - this.label7 = new System.Windows.Forms.Label(); - this.pm_server_textBox = new System.Windows.Forms.TextBox(); - this.label8 = new System.Windows.Forms.Label(); - this.label9 = new System.Windows.Forms.Label(); - this.pm_login_textBox = new System.Windows.Forms.TextBox(); - this.pm_authentication_comboBox = new System.Windows.Forms.ComboBox(); - this.label10 = new System.Windows.Forms.Label(); - this.groupBox1.SuspendLayout(); - this.groupBox2.SuspendLayout(); - this.SuspendLayout(); - // - // label1 - // - this.label1.AutoSize = true; - this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label1.Location = new System.Drawing.Point(6, 39); - this.label1.Name = "label1"; - this.label1.Size = new System.Drawing.Size(44, 13); - this.label1.TabIndex = 0; - this.label1.Text = "Server"; - // - // server_textBox - // - this.server_textBox.Location = new System.Drawing.Point(9, 55); - this.server_textBox.Name = "server_textBox"; - this.server_textBox.Size = new System.Drawing.Size(231, 20); - this.server_textBox.TabIndex = 1; - // - // authentication_comboBox - // - this.authentication_comboBox.FormattingEnabled = true; - this.authentication_comboBox.Items.AddRange(new object[] { - "Integrated Authentication", - "SQL Server Authentication"}); - this.authentication_comboBox.Location = new System.Drawing.Point(9, 94); - this.authentication_comboBox.Name = "authentication_comboBox"; - this.authentication_comboBox.Size = new System.Drawing.Size(231, 21); - this.authentication_comboBox.TabIndex = 2; - // - // login_textBox - // - this.login_textBox.Location = new System.Drawing.Point(9, 134); - this.login_textBox.Name = "login_textBox"; - this.login_textBox.Size = new System.Drawing.Size(231, 20); - this.login_textBox.TabIndex = 3; - // - // password_textBox - // - this.password_textBox.Location = new System.Drawing.Point(9, 173); - this.password_textBox.Name = "password_textBox"; - this.password_textBox.Size = new System.Drawing.Size(231, 20); - this.password_textBox.TabIndex = 4; - this.password_textBox.UseSystemPasswordChar = true; - // - // label2 - // - this.label2.AutoSize = true; - this.label2.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label2.Location = new System.Drawing.Point(9, 157); - this.label2.Name = "label2"; - this.label2.Size = new System.Drawing.Size(61, 13); - this.label2.TabIndex = 5; - this.label2.Text = "Password"; - // - // label3 - // - this.label3.AutoSize = true; - this.label3.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label3.Location = new System.Drawing.Point(6, 118); - this.label3.Name = "label3"; - this.label3.Size = new System.Drawing.Size(38, 13); - this.label3.TabIndex = 6; - this.label3.Text = "Login"; - // - // label4 - // - this.label4.AutoSize = true; - this.label4.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label4.Location = new System.Drawing.Point(6, 78); - this.label4.Name = "label4"; - this.label4.Size = new System.Drawing.Size(89, 13); - this.label4.TabIndex = 7; - this.label4.Text = "Authentication"; - // - // cancel_button - // - this.cancel_button.DialogResult = System.Windows.Forms.DialogResult.Cancel; - this.cancel_button.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.cancel_button.Location = new System.Drawing.Point(430, 286); - this.cancel_button.Name = "cancel_button"; - this.cancel_button.Size = new System.Drawing.Size(80, 23); - this.cancel_button.TabIndex = 8; - this.cancel_button.Text = "Cancel"; - this.cancel_button.UseVisualStyleBackColor = true; - this.cancel_button.Click += new System.EventHandler(this.cancel_button_Click); - // - // test_button - // - this.test_button.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.test_button.Location = new System.Drawing.Point(120, 239); - this.test_button.Name = "test_button"; - this.test_button.Size = new System.Drawing.Size(120, 23); - this.test_button.TabIndex = 9; - this.test_button.Text = "Test Connection"; - this.test_button.UseVisualStyleBackColor = true; - this.test_button.Click += new System.EventHandler(this.test_button_Click); - // - // ok_button - // - this.ok_button.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.ok_button.Location = new System.Drawing.Point(344, 286); - this.ok_button.Name = "ok_button"; - this.ok_button.Size = new System.Drawing.Size(80, 23); - this.ok_button.TabIndex = 10; - this.ok_button.Text = "OK"; - this.ok_button.UseVisualStyleBackColor = true; - this.ok_button.Click += new System.EventHandler(this.ok_button_Click); - // - // db_comboBox - // - this.db_comboBox.FormattingEnabled = true; - this.db_comboBox.Location = new System.Drawing.Point(9, 212); - this.db_comboBox.Name = "db_comboBox"; - this.db_comboBox.Size = new System.Drawing.Size(231, 21); - this.db_comboBox.TabIndex = 11; - // - // label5 - // - this.label5.AutoSize = true; - this.label5.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label5.Location = new System.Drawing.Point(6, 196); - this.label5.Name = "label5"; - this.label5.Size = new System.Drawing.Size(106, 13); - this.label5.TabIndex = 12; - this.label5.Text = "Default Database"; - // - // groupBox1 - // - this.groupBox1.Controls.Add(this.db_comboBox); - this.groupBox1.Controls.Add(this.label5); - this.groupBox1.Controls.Add(this.password_textBox); - this.groupBox1.Controls.Add(this.test_button); - this.groupBox1.Controls.Add(this.label2); - this.groupBox1.Controls.Add(this.server_textBox); - this.groupBox1.Controls.Add(this.label1); - this.groupBox1.Controls.Add(this.label4); - this.groupBox1.Controls.Add(this.login_textBox); - this.groupBox1.Controls.Add(this.authentication_comboBox); - this.groupBox1.Controls.Add(this.label3); - this.groupBox1.Location = new System.Drawing.Point(12, 12); - this.groupBox1.Name = "groupBox1"; - this.groupBox1.Size = new System.Drawing.Size(246, 268); - this.groupBox1.TabIndex = 13; - this.groupBox1.TabStop = false; - this.groupBox1.Text = "Main Load Settings"; - // - // groupBox2 - // - this.groupBox2.Controls.Add(this.pm_test_button); - this.groupBox2.Controls.Add(this.shareSettings_checkBox); - this.groupBox2.Controls.Add(this.pm_db_comboBox); - this.groupBox2.Controls.Add(this.label6); - this.groupBox2.Controls.Add(this.pm_password_textBox); - this.groupBox2.Controls.Add(this.label7); - this.groupBox2.Controls.Add(this.pm_server_textBox); - this.groupBox2.Controls.Add(this.label8); - this.groupBox2.Controls.Add(this.label9); - this.groupBox2.Controls.Add(this.pm_login_textBox); - this.groupBox2.Controls.Add(this.pm_authentication_comboBox); - this.groupBox2.Controls.Add(this.label10); - this.groupBox2.Location = new System.Drawing.Point(264, 12); - this.groupBox2.Name = "groupBox2"; - this.groupBox2.Size = new System.Drawing.Size(246, 268); - this.groupBox2.TabIndex = 14; - this.groupBox2.TabStop = false; - this.groupBox2.Text = "Parameterization Settings"; - // - // pm_test_button - // - this.pm_test_button.Enabled = false; - this.pm_test_button.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.pm_test_button.Location = new System.Drawing.Point(123, 239); - this.pm_test_button.Name = "pm_test_button"; - this.pm_test_button.Size = new System.Drawing.Size(120, 23); - this.pm_test_button.TabIndex = 15; - this.pm_test_button.Text = "Test Connection"; - this.pm_test_button.UseVisualStyleBackColor = true; - this.pm_test_button.Click += new System.EventHandler(this.pm_test_button_Click); - // - // shareSettings_checkBox - // - this.shareSettings_checkBox.AutoSize = true; - this.shareSettings_checkBox.Checked = true; - this.shareSettings_checkBox.CheckState = System.Windows.Forms.CheckState.Checked; - this.shareSettings_checkBox.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.shareSettings_checkBox.Location = new System.Drawing.Point(12, 19); - this.shareSettings_checkBox.Name = "shareSettings_checkBox"; - this.shareSettings_checkBox.Size = new System.Drawing.Size(177, 17); - this.shareSettings_checkBox.TabIndex = 13; - this.shareSettings_checkBox.Text = "Share Connection Settings"; - this.shareSettings_checkBox.UseVisualStyleBackColor = true; - this.shareSettings_checkBox.CheckedChanged += new System.EventHandler(this.shareSettings_checkBox_CheckedChanged); - // - // pm_db_comboBox - // - this.pm_db_comboBox.Enabled = false; - this.pm_db_comboBox.FormattingEnabled = true; - this.pm_db_comboBox.Location = new System.Drawing.Point(9, 212); - this.pm_db_comboBox.Name = "pm_db_comboBox"; - this.pm_db_comboBox.Size = new System.Drawing.Size(231, 21); - this.pm_db_comboBox.TabIndex = 11; - // - // label6 - // - this.label6.AutoSize = true; - this.label6.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label6.Location = new System.Drawing.Point(6, 196); - this.label6.Name = "label6"; - this.label6.Size = new System.Drawing.Size(106, 13); - this.label6.TabIndex = 12; - this.label6.Text = "Default Database"; - // - // pm_password_textBox - // - this.pm_password_textBox.Enabled = false; - this.pm_password_textBox.Location = new System.Drawing.Point(9, 173); - this.pm_password_textBox.Name = "pm_password_textBox"; - this.pm_password_textBox.Size = new System.Drawing.Size(231, 20); - this.pm_password_textBox.TabIndex = 4; - this.pm_password_textBox.UseSystemPasswordChar = true; - // - // label7 - // - this.label7.AutoSize = true; - this.label7.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label7.Location = new System.Drawing.Point(9, 157); - this.label7.Name = "label7"; - this.label7.Size = new System.Drawing.Size(61, 13); - this.label7.TabIndex = 5; - this.label7.Text = "Password"; - // - // pm_server_textBox - // - this.pm_server_textBox.Enabled = false; - this.pm_server_textBox.Location = new System.Drawing.Point(9, 55); - this.pm_server_textBox.Name = "pm_server_textBox"; - this.pm_server_textBox.Size = new System.Drawing.Size(231, 20); - this.pm_server_textBox.TabIndex = 1; - // - // label8 - // - this.label8.AutoSize = true; - this.label8.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label8.Location = new System.Drawing.Point(6, 39); - this.label8.Name = "label8"; - this.label8.Size = new System.Drawing.Size(44, 13); - this.label8.TabIndex = 0; - this.label8.Text = "Server"; - // - // label9 - // - this.label9.AutoSize = true; - this.label9.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label9.Location = new System.Drawing.Point(6, 78); - this.label9.Name = "label9"; - this.label9.Size = new System.Drawing.Size(89, 13); - this.label9.TabIndex = 7; - this.label9.Text = "Authentication"; - // - // pm_login_textBox - // - this.pm_login_textBox.Enabled = false; - this.pm_login_textBox.Location = new System.Drawing.Point(9, 134); - this.pm_login_textBox.Name = "pm_login_textBox"; - this.pm_login_textBox.Size = new System.Drawing.Size(231, 20); - this.pm_login_textBox.TabIndex = 3; - // - // pm_authentication_comboBox - // - this.pm_authentication_comboBox.Enabled = false; - this.pm_authentication_comboBox.FormattingEnabled = true; - this.pm_authentication_comboBox.Items.AddRange(new object[] { - "Integrated Authentication", - "SQL Server Authentication"}); - this.pm_authentication_comboBox.Location = new System.Drawing.Point(9, 94); - this.pm_authentication_comboBox.Name = "pm_authentication_comboBox"; - this.pm_authentication_comboBox.Size = new System.Drawing.Size(231, 21); - this.pm_authentication_comboBox.TabIndex = 2; - // - // label10 - // - this.label10.AutoSize = true; - this.label10.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label10.Location = new System.Drawing.Point(6, 118); - this.label10.Name = "label10"; - this.label10.Size = new System.Drawing.Size(38, 13); - this.label10.TabIndex = 6; - this.label10.Text = "Login"; - // - // DatabaseSelect - // - this.AcceptButton = this.ok_button; - this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); - this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; - this.CancelButton = this.cancel_button; - this.ClientSize = new System.Drawing.Size(524, 320); - this.Controls.Add(this.groupBox2); - this.Controls.Add(this.groupBox1); - this.Controls.Add(this.ok_button); - this.Controls.Add(this.cancel_button); - this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog; - this.MaximizeBox = false; - this.MinimizeBox = false; - this.Name = "DatabaseSelect"; - this.ShowIcon = false; - this.ShowInTaskbar = false; - this.Text = "Database Select"; - this.groupBox1.ResumeLayout(false); - this.groupBox1.PerformLayout(); - this.groupBox2.ResumeLayout(false); - this.groupBox2.PerformLayout(); - this.ResumeLayout(false); - - } - - #endregion - - private System.Windows.Forms.Label label1; - private System.Windows.Forms.TextBox server_textBox; - private System.Windows.Forms.ComboBox authentication_comboBox; - private System.Windows.Forms.TextBox login_textBox; - private System.Windows.Forms.TextBox password_textBox; - private System.Windows.Forms.Label label2; - private System.Windows.Forms.Label label3; - private System.Windows.Forms.Label label4; - private System.Windows.Forms.Button cancel_button; - private System.Windows.Forms.Button test_button; - private System.Windows.Forms.Button ok_button; - private System.Windows.Forms.ComboBox db_comboBox; - private System.Windows.Forms.Label label5; - private System.Windows.Forms.GroupBox groupBox1; - private System.Windows.Forms.GroupBox groupBox2; - private System.Windows.Forms.CheckBox shareSettings_checkBox; - private System.Windows.Forms.ComboBox pm_db_comboBox; - private System.Windows.Forms.Label label6; - private System.Windows.Forms.TextBox pm_password_textBox; - private System.Windows.Forms.Label label7; - private System.Windows.Forms.TextBox pm_server_textBox; - private System.Windows.Forms.Label label8; - private System.Windows.Forms.Label label9; - private System.Windows.Forms.TextBox pm_login_textBox; - private System.Windows.Forms.ComboBox pm_authentication_comboBox; - private System.Windows.Forms.Label label10; - private System.Windows.Forms.Button pm_test_button; - } -} \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/DatabaseSelect.cs b/Solution/SQLQueryStress/src/SQLQueryStress/DatabaseSelect.cs deleted file mode 100644 index 20601b97..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/DatabaseSelect.cs +++ /dev/null @@ -1,406 +0,0 @@ -#region - -using System; -using System.Collections.Generic; -using System.Data.SqlClient; -using System.Windows.Forms; -using SQLQueryStress.Properties; - -#endregion - -namespace SQLQueryStress -{ - public partial class DatabaseSelect : Form - { - private readonly ConnectionInfo _localMainConnectionInfo; - private readonly Form1.QueryStressSettings _settings; - private ConnectionInfo _localParamConnectionInfo; - - public DatabaseSelect(Form1.QueryStressSettings settings) - { - _settings = settings; - _localMainConnectionInfo = (ConnectionInfo) settings.MainDbConnectionInfo.Clone(); - - if (settings.ShareDbSettings) - { - _localParamConnectionInfo = (ConnectionInfo) settings.MainDbConnectionInfo.Clone(); - } - else - { - _localParamConnectionInfo = (ConnectionInfo) settings.ParamDbConnectionInfo.Clone(); - } - - InitializeComponent(); - - server_textBox.Text = _localMainConnectionInfo.Server; - - if (_localMainConnectionInfo.IntegratedAuth) - { - authentication_comboBox.SelectedIndex = 0; - login_textBox.Enabled = false; - password_textBox.Enabled = false; - } - else - { - authentication_comboBox.SelectedIndex = 1; - login_textBox.Text = _localMainConnectionInfo.Login; - password_textBox.Text = _localMainConnectionInfo.Password; - } - - if (_localMainConnectionInfo.Database.Length > 0) - { - db_comboBox.Items.Add(_localMainConnectionInfo.Database); - db_comboBox.SelectedIndex = 0; - } - - if (!settings.ShareDbSettings) - { - pm_server_textBox.Text = _localParamConnectionInfo.Server; - - if (_localParamConnectionInfo.IntegratedAuth) - { - pm_authentication_comboBox.SelectedIndex = 0; - pm_login_textBox.Enabled = false; - pm_password_textBox.Enabled = false; - } - else - { - pm_authentication_comboBox.SelectedIndex = 1; - pm_login_textBox.Text = _localParamConnectionInfo.Login; - pm_password_textBox.Text = _localParamConnectionInfo.Password; - } - - if (_localParamConnectionInfo.Database.Length > 0) - { - pm_db_comboBox.Items.Add(_localParamConnectionInfo.Database); - pm_db_comboBox.SelectedIndex = 0; - } - } - else - pm_authentication_comboBox.SelectedIndex = 0; - - shareSettings_checkBox.Checked = settings.ShareDbSettings; - - authentication_comboBox.SelectedIndexChanged += authentication_comboBox_SelectedIndexChanged; - pm_authentication_comboBox.SelectedIndexChanged += pm_authentication_comboBox_SelectedIndexChanged; - - db_comboBox.Click += db_comboBox_Click; - pm_db_comboBox.Click += pm_db_comboBox_Click; - } - - private void authentication_comboBox_SelectedIndexChanged(object sender, EventArgs e) - { - if (authentication_comboBox.SelectedIndex == 0) - { - login_textBox.Enabled = false; - password_textBox.Enabled = false; - } - else - { - login_textBox.Enabled = true; - password_textBox.Enabled = true; - } - } - - private void cancel_button_Click(object sender, EventArgs e) - { - Dispose(); - } - - private void db_comboBox_Click(object sender, EventArgs e) - { - SaveLocalSettings(); - - var selectedItem = (string) db_comboBox.SelectedItem; - - var sql = "" + "SELECT name " + "FROM master..sysdatabases " + "ORDER BY name"; - - using (var conn = new SqlConnection(_localMainConnectionInfo.ConnectionString)) - { - var comm = new SqlCommand(sql, conn); - - var databases = new List(); - - try - { - conn.Open(); - - var reader = comm.ExecuteReader(); - - while (reader.Read()) - { - databases.Add((string) reader[0]); - } - } - catch (SqlException ex) - { - if (ex.Number != 4060) - MessageBox.Show(Resources.ConnFail); - else - { - //Clear the db, try again - db_comboBox.Items.Clear(); - db_comboBox_Click(null, null); - return; - } - } - - db_comboBox.DataSource = databases.ToArray(); - - if (selectedItem != null) - if (db_comboBox.Items.Contains(selectedItem)) - db_comboBox.SelectedItem = selectedItem; - } - } - - private void ok_button_Click(object sender, EventArgs e) - { - SaveLocalSettings(); - pm_saveLocalSettings(); - - _localMainConnectionInfo.CopyTo(_settings.MainDbConnectionInfo); - _localParamConnectionInfo.CopyTo(_settings.ParamDbConnectionInfo); - _settings.ShareDbSettings = shareSettings_checkBox.Checked; - - Dispose(); - } - - private void pm_authentication_comboBox_SelectedIndexChanged(object sender, EventArgs e) - { - if (pm_authentication_comboBox.SelectedIndex == 0) - { - pm_login_textBox.Enabled = false; - pm_password_textBox.Enabled = false; - } - else - { - pm_login_textBox.Enabled = true; - pm_password_textBox.Enabled = true; - } - } - - private void pm_db_comboBox_Click(object sender, EventArgs e) - { - pm_saveLocalSettings(); - - var selectedItem = (string) pm_db_comboBox.SelectedItem; - - var sql = "" + "SELECT name " + "FROM master..sysdatabases " + "ORDER BY name"; - - using (var conn = new SqlConnection(_localParamConnectionInfo.ConnectionString)) - { - var comm = new SqlCommand(sql, conn); - - var databases = new List(); - - try - { - conn.Open(); - - var reader = comm.ExecuteReader(); - - while (reader.Read()) - databases.Add((string) reader[0]); - } - catch (SqlException ex) - { - if (ex.Number != 4060) - MessageBox.Show(Resources.ConnFail); - else - { - //Clear the db, try again - pm_db_comboBox.Items.Clear(); - pm_db_comboBox_Click(null, null); - return; - } - } - - pm_db_comboBox.DataSource = databases.ToArray(); - - if (selectedItem != null) - if (pm_db_comboBox.Items.Contains(selectedItem)) - pm_db_comboBox.SelectedItem = selectedItem; - } - } - - private void pm_saveLocalSettings() - { - if (!shareSettings_checkBox.Checked) - { - _localParamConnectionInfo.Server = pm_server_textBox.Text; - _localParamConnectionInfo.IntegratedAuth = pm_authentication_comboBox.SelectedIndex == 0; - - if (_localParamConnectionInfo.IntegratedAuth) - { - _localParamConnectionInfo.Login = ""; - _localParamConnectionInfo.Password = ""; - } - else - { - _localParamConnectionInfo.Login = pm_login_textBox.Text; - _localParamConnectionInfo.Password = pm_password_textBox.Text; - } - - _localParamConnectionInfo.Database = pm_db_comboBox.SelectedItem != null ? pm_db_comboBox.SelectedItem.ToString() : ""; - } - else - _localParamConnectionInfo = new ConnectionInfo(); - } - - private void pm_test_button_Click(object sender, EventArgs e) - { - pm_saveLocalSettings(); - - MessageBox.Show(_localParamConnectionInfo.TestConnection() ? Resources.ConnSucc : Resources.ConnFail); - } - - private void SaveLocalSettings() - { - _localMainConnectionInfo.Server = server_textBox.Text; - _localMainConnectionInfo.IntegratedAuth = authentication_comboBox.SelectedIndex == 0; - - if (_localMainConnectionInfo.IntegratedAuth) - { - _localMainConnectionInfo.Login = ""; - _localMainConnectionInfo.Password = ""; - } - else - { - _localMainConnectionInfo.Login = login_textBox.Text; - _localMainConnectionInfo.Password = password_textBox.Text; - } - - _localMainConnectionInfo.Database = db_comboBox.SelectedItem != null ? db_comboBox.SelectedItem.ToString() : ""; - } - - private void shareSettings_checkBox_CheckedChanged(object sender, EventArgs e) - { - if (shareSettings_checkBox.Checked) - { - pm_server_textBox.Enabled = false; - pm_authentication_comboBox.Enabled = false; - pm_login_textBox.Enabled = false; - pm_password_textBox.Enabled = false; - pm_db_comboBox.Enabled = false; - pm_test_button.Enabled = false; - } - else - { - pm_server_textBox.Enabled = true; - pm_authentication_comboBox.Enabled = true; - - if (pm_authentication_comboBox.SelectedIndex == 1) - { - pm_login_textBox.Enabled = true; - pm_password_textBox.Enabled = true; - } - pm_db_comboBox.Enabled = true; - pm_test_button.Enabled = true; - } - } - - private void test_button_Click(object sender, EventArgs e) - { - SaveLocalSettings(); - - MessageBox.Show(_localMainConnectionInfo.TestConnection() ? Resources.ConnSucc : Resources.ConnFail); - } - - [Serializable] - public class ConnectionInfo : ICloneable - { - public string Database; - public bool IntegratedAuth; - public string Login; - public string Password; - - public string Server; - public Form1.QueryStressSettings Settings; - - public ConnectionInfo() - { - Server = ""; - IntegratedAuth = true; - Login = ""; - Password = ""; - Database = ""; - } - - public ConnectionInfo(Form1.QueryStressSettings settings) - { - Server = ""; - IntegratedAuth = true; - Login = ""; - Password = ""; - Database = ""; - Settings = settings; - } - - public string ConnectionString - { - get - { - var build = new SqlConnectionStringBuilder {DataSource = Server, IntegratedSecurity = IntegratedAuth}; - if (!IntegratedAuth) - { - build.UserID = Login; - build.Password = Password; - } - - if (Database.Length > 0) - build.InitialCatalog = Database; - - if (Settings != null) - { - build.ConnectTimeout = Settings.ConnectionTimeout; - build.Pooling = Settings.EnableConnectionPooling; - build.MaxPoolSize = Settings.NumThreads * 2; - } - - return build.ConnectionString; - } - } - - #region ICloneable Members - - public object Clone() - { - var newConnInfo = new ConnectionInfo(); - CopyTo(newConnInfo); - - return newConnInfo; - } - - #endregion - - public void CopyTo(ConnectionInfo to) - { - to.Server = Server; - to.IntegratedAuth = IntegratedAuth; - to.Login = Login; - to.Password = Password; - to.Database = Database; - } - - public bool TestConnection() - { - if ((Server == "") || ((IntegratedAuth == false) && (Login == "" || Password == ""))) - return false; - - using (var conn = new SqlConnection(ConnectionString)) - { - try - { - conn.Open(); - } - catch - { - return false; - } - } - - return true; - } - } - } -} \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/DatabaseSelect.resx b/Solution/SQLQueryStress/src/SQLQueryStress/DatabaseSelect.resx deleted file mode 100644 index 19dc0dd8..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/DatabaseSelect.resx +++ /dev/null @@ -1,120 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - text/microsoft-resx - - - 2.0 - - - System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 - - - System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 - - \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/Form1.Designer.cs b/Solution/SQLQueryStress/src/SQLQueryStress/Form1.Designer.cs deleted file mode 100644 index 3619e38d..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/Form1.Designer.cs +++ /dev/null @@ -1,766 +0,0 @@ -using System.Windows.Forms; - -namespace SQLQueryStress -{ - partial class Form1 - { - /// - /// Required designer variable. - /// - private System.ComponentModel.IContainer components = null; - - /// - /// Clean up any resources being used. - /// - /// true if managed resources should be disposed; otherwise, false. - protected override void Dispose(bool disposing) - { - if (backgroundWorker1.CancellationPending) - System.Windows.Forms.MessageBox.Show("Please wait while background threads are cancelled."); - else if (backgroundWorker1.IsBusy) - { - if (System.Windows.Forms.MessageBox.Show( - "A test is currently running. Cancel and shut down?", - "Really Close?", - System.Windows.Forms.MessageBoxButtons.YesNo, - System.Windows.Forms.MessageBoxIcon.Question) == System.Windows.Forms.DialogResult.Yes) - { - cancel_button_Click(new System.String(' ', 0), null); - } - } - else - { - if (disposing && (components != null)) - { - components.Dispose(); - } - base.Dispose(disposing); - } - } - - #region Windows Form Designer generated code - - /// - /// Required method for Designer support - do not modify - /// the contents of this method with the code editor. - /// - private void InitializeComponent() - { - this.components = new System.ComponentModel.Container(); - System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1)); - this.query_textBox = new System.Windows.Forms.RichTextBox(); - this.label1 = new System.Windows.Forms.Label(); - this.menuStrip1 = new System.Windows.Forms.MenuStrip(); - this.fileToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); - this.toolStripSeparator1 = new System.Windows.Forms.ToolStripSeparator(); - this.optionsToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); - this.saveSettingsToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); - this.loadSettingsToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); - this.exitToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); - this.helpToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); - this.aboutToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem(); - this.go_button = new System.Windows.Forms.Button(); - this.label2 = new System.Windows.Forms.Label(); - this.label3 = new System.Windows.Forms.Label(); - this.iterations_numericUpDown = new System.Windows.Forms.NumericUpDown(); - this.threads_numericUpDown = new System.Windows.Forms.NumericUpDown(); - this.cancel_button = new System.Windows.Forms.Button(); - this.label4 = new System.Windows.Forms.Label(); - this.backgroundWorker1 = new System.ComponentModel.BackgroundWorker(); - this.label5 = new System.Windows.Forms.Label(); - this.avgSeconds_textBox = new System.Windows.Forms.Label(); - this.progressBar1 = new System.Windows.Forms.ProgressBar(); - this.label6 = new System.Windows.Forms.Label(); - this.label7 = new System.Windows.Forms.Label(); - this.totalExceptions_textBox = new System.Windows.Forms.Label(); - this.mainUITimer = new System.Windows.Forms.Timer(this.components); - this.label8 = new System.Windows.Forms.Label(); - this.elapsedTime_textBox = new System.Windows.Forms.Label(); - this.perfCounterTimer = new System.Windows.Forms.Timer(this.components); - this.database_button = new System.Windows.Forms.Button(); - this.iterationsSecond_textBox = new System.Windows.Forms.Label(); - this.exceptions_button = new System.Windows.Forms.Button(); - this.saveFileDialog1 = new System.Windows.Forms.SaveFileDialog(); - this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog(); - this.label9 = new System.Windows.Forms.Label(); - this.cpuTime_textBox = new System.Windows.Forms.Label(); - this.label10 = new System.Windows.Forms.Label(); - this.actualSeconds_textBox = new System.Windows.Forms.Label(); - this.label12 = new System.Windows.Forms.Label(); - this.logicalReads_textBox = new System.Windows.Forms.Label(); - this.db_label = new System.Windows.Forms.Label(); - this.tableLayoutPanel1 = new System.Windows.Forms.TableLayoutPanel(); - this.flowLayoutPanel1 = new System.Windows.Forms.FlowLayoutPanel(); - this.tableLayoutPanel2 = new System.Windows.Forms.TableLayoutPanel(); - this.param_button = new System.Windows.Forms.Button(); - this.tableLayoutPanel4 = new System.Windows.Forms.TableLayoutPanel(); - this.btnFreeCache = new System.Windows.Forms.Button(); - this.btnCleanBuffer = new System.Windows.Forms.Button(); - this.tableLayoutPanel3 = new System.Windows.Forms.TableLayoutPanel(); - this.menuStrip1.SuspendLayout(); - ((System.ComponentModel.ISupportInitialize)(this.iterations_numericUpDown)).BeginInit(); - ((System.ComponentModel.ISupportInitialize)(this.threads_numericUpDown)).BeginInit(); - this.tableLayoutPanel1.SuspendLayout(); - this.flowLayoutPanel1.SuspendLayout(); - this.tableLayoutPanel2.SuspendLayout(); - this.tableLayoutPanel4.SuspendLayout(); - this.tableLayoutPanel3.SuspendLayout(); - this.SuspendLayout(); - // - // query_textBox - // - this.query_textBox.AcceptsTab = true; - this.query_textBox.AllowDrop = true; - this.query_textBox.Dock = System.Windows.Forms.DockStyle.Fill; - this.query_textBox.Location = new System.Drawing.Point(3, 3); - this.query_textBox.Name = "query_textBox"; - this.query_textBox.Size = new System.Drawing.Size(317, 354); - this.query_textBox.TabIndex = 0; - this.query_textBox.Text = ""; - this.query_textBox.WordWrap = false; - // - // label1 - // - this.label1.AutoSize = true; - this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label1.Location = new System.Drawing.Point(9, 32); - this.label1.Name = "label1"; - this.label1.Size = new System.Drawing.Size(40, 13); - this.label1.TabIndex = 1; - this.label1.Text = "Query"; - // - // menuStrip1 - // - this.menuStrip1.BackColor = System.Drawing.SystemColors.MenuBar; - this.menuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] { - this.fileToolStripMenuItem, - this.helpToolStripMenuItem}); - this.menuStrip1.Location = new System.Drawing.Point(0, 0); - this.menuStrip1.Name = "menuStrip1"; - this.menuStrip1.Size = new System.Drawing.Size(733, 24); - this.menuStrip1.TabIndex = 2; - this.menuStrip1.Text = "menuStrip1"; - // - // fileToolStripMenuItem - // - this.fileToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] { - this.toolStripSeparator1, - this.optionsToolStripMenuItem, - this.saveSettingsToolStripMenuItem, - this.loadSettingsToolStripMenuItem, - this.exitToolStripMenuItem}); - this.fileToolStripMenuItem.Name = "fileToolStripMenuItem"; - this.fileToolStripMenuItem.Size = new System.Drawing.Size(37, 20); - this.fileToolStripMenuItem.Text = "File"; - // - // toolStripSeparator1 - // - this.toolStripSeparator1.Name = "toolStripSeparator1"; - this.toolStripSeparator1.Size = new System.Drawing.Size(142, 6); - // - // optionsToolStripMenuItem - // - this.optionsToolStripMenuItem.Name = "optionsToolStripMenuItem"; - this.optionsToolStripMenuItem.Size = new System.Drawing.Size(145, 22); - this.optionsToolStripMenuItem.Text = "Options"; - this.optionsToolStripMenuItem.Click += new System.EventHandler(this.optionsToolStripMenuItem_Click); - // - // saveSettingsToolStripMenuItem - // - this.saveSettingsToolStripMenuItem.Name = "saveSettingsToolStripMenuItem"; - this.saveSettingsToolStripMenuItem.Size = new System.Drawing.Size(145, 22); - this.saveSettingsToolStripMenuItem.Text = "Save Settings"; - this.saveSettingsToolStripMenuItem.Click += new System.EventHandler(this.saveSettingsToolStripMenuItem_Click); - // - // loadSettingsToolStripMenuItem - // - this.loadSettingsToolStripMenuItem.Name = "loadSettingsToolStripMenuItem"; - this.loadSettingsToolStripMenuItem.Size = new System.Drawing.Size(145, 22); - this.loadSettingsToolStripMenuItem.Text = "Load Settings"; - this.loadSettingsToolStripMenuItem.Click += new System.EventHandler(this.loadSettingsToolStripMenuItem_Click); - // - // exitToolStripMenuItem - // - this.exitToolStripMenuItem.Name = "exitToolStripMenuItem"; - this.exitToolStripMenuItem.Size = new System.Drawing.Size(145, 22); - this.exitToolStripMenuItem.Text = "Exit"; - this.exitToolStripMenuItem.Click += new System.EventHandler(this.exitToolStripMenuItem_Click); - // - // helpToolStripMenuItem - // - this.helpToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] { - this.aboutToolStripMenuItem}); - this.helpToolStripMenuItem.Name = "helpToolStripMenuItem"; - this.helpToolStripMenuItem.Size = new System.Drawing.Size(44, 20); - this.helpToolStripMenuItem.Text = "Help"; - // - // aboutToolStripMenuItem - // - this.aboutToolStripMenuItem.Name = "aboutToolStripMenuItem"; - this.aboutToolStripMenuItem.Size = new System.Drawing.Size(107, 22); - this.aboutToolStripMenuItem.Text = "About"; - this.aboutToolStripMenuItem.Click += new System.EventHandler(this.aboutToolStripMenuItem_Click); - // - // go_button - // - this.go_button.Dock = System.Windows.Forms.DockStyle.Fill; - this.go_button.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.go_button.Location = new System.Drawing.Point(3, 3); - this.go_button.Name = "go_button"; - this.go_button.Size = new System.Drawing.Size(92, 40); - this.go_button.TabIndex = 3; - this.go_button.Text = "GO"; - this.go_button.UseVisualStyleBackColor = true; - this.go_button.Click += new System.EventHandler(this.go_button_Click); - // - // label2 - // - this.label2.AutoSize = true; - this.label2.Dock = System.Windows.Forms.DockStyle.Fill; - this.label2.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label2.Location = new System.Drawing.Point(3, 152); - this.label2.Name = "label2"; - this.label2.Size = new System.Drawing.Size(196, 14); - this.label2.TabIndex = 5; - this.label2.Text = "Number of Iterations"; - // - // label3 - // - this.label3.AutoSize = true; - this.label3.Dock = System.Windows.Forms.DockStyle.Fill; - this.label3.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label3.Location = new System.Drawing.Point(3, 202); - this.label3.Name = "label3"; - this.label3.Size = new System.Drawing.Size(196, 14); - this.label3.TabIndex = 7; - this.label3.Text = "Number of Threads"; - // - // iterations_numericUpDown - // - this.iterations_numericUpDown.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.iterations_numericUpDown.Location = new System.Drawing.Point(3, 169); - this.iterations_numericUpDown.Maximum = new decimal(new int[] { - 100000, - 0, - 0, - 0}); - this.iterations_numericUpDown.Minimum = new decimal(new int[] { - 1, - 0, - 0, - 0}); - this.iterations_numericUpDown.Name = "iterations_numericUpDown"; - this.iterations_numericUpDown.Size = new System.Drawing.Size(196, 20); - this.iterations_numericUpDown.TabIndex = 8; - this.iterations_numericUpDown.Value = new decimal(new int[] { - 1, - 0, - 0, - 0}); - // - // threads_numericUpDown - // - this.threads_numericUpDown.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.threads_numericUpDown.Location = new System.Drawing.Point(3, 219); - this.threads_numericUpDown.Maximum = new decimal(new int[] { - 200, - 0, - 0, - 0}); - this.threads_numericUpDown.Minimum = new decimal(new int[] { - 1, - 0, - 0, - 0}); - this.threads_numericUpDown.Name = "threads_numericUpDown"; - this.threads_numericUpDown.Size = new System.Drawing.Size(196, 20); - this.threads_numericUpDown.TabIndex = 9; - this.threads_numericUpDown.Value = new decimal(new int[] { - 1, - 0, - 0, - 0}); - // - // cancel_button - // - this.cancel_button.Dock = System.Windows.Forms.DockStyle.Fill; - this.cancel_button.Enabled = false; - this.cancel_button.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.cancel_button.Location = new System.Drawing.Point(101, 3); - this.cancel_button.Name = "cancel_button"; - this.cancel_button.Size = new System.Drawing.Size(92, 40); - this.cancel_button.TabIndex = 11; - this.cancel_button.Text = "Cancel"; - this.cancel_button.UseVisualStyleBackColor = true; - this.cancel_button.Click += new System.EventHandler(this.cancel_button_Click); - // - // label4 - // - this.label4.AutoSize = true; - this.label4.Dock = System.Windows.Forms.DockStyle.Fill; - this.label4.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label4.Location = new System.Drawing.Point(205, 152); - this.label4.Name = "label4"; - this.label4.Size = new System.Drawing.Size(196, 14); - this.label4.TabIndex = 12; - this.label4.Text = "Iterations Completed"; - // - // backgroundWorker1 - // - this.backgroundWorker1.WorkerReportsProgress = true; - this.backgroundWorker1.WorkerSupportsCancellation = true; - this.backgroundWorker1.DoWork += new System.ComponentModel.DoWorkEventHandler(this.backgroundWorker1_DoWork); - this.backgroundWorker1.ProgressChanged += new System.ComponentModel.ProgressChangedEventHandler(this.backgroundWorker1_ProgressChanged); - this.backgroundWorker1.RunWorkerCompleted += new System.ComponentModel.RunWorkerCompletedEventHandler(this.backgroundWorker1_RunWorkerCompleted); - // - // label5 - // - this.label5.AutoSize = true; - this.label5.Dock = System.Windows.Forms.DockStyle.Fill; - this.label5.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label5.Location = new System.Drawing.Point(205, 202); - this.label5.Name = "label5"; - this.label5.Size = new System.Drawing.Size(196, 14); - this.label5.TabIndex = 14; - this.label5.Text = "Client Seconds/Iteration (Avg)"; - // - // avgSeconds_textBox - // - this.avgSeconds_textBox.BackColor = System.Drawing.Color.Black; - this.avgSeconds_textBox.Cursor = System.Windows.Forms.Cursors.Default; - this.avgSeconds_textBox.Dock = System.Windows.Forms.DockStyle.Fill; - this.avgSeconds_textBox.Font = new System.Drawing.Font("Courier New", 15.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.avgSeconds_textBox.ForeColor = System.Drawing.Color.Lime; - this.avgSeconds_textBox.Location = new System.Drawing.Point(205, 219); - this.avgSeconds_textBox.Margin = new System.Windows.Forms.Padding(3); - this.avgSeconds_textBox.Name = "avgSeconds_textBox"; - this.avgSeconds_textBox.Size = new System.Drawing.Size(196, 30); - this.avgSeconds_textBox.TabIndex = 13; - this.avgSeconds_textBox.TextAlign = System.Drawing.ContentAlignment.MiddleRight; - // - // progressBar1 - // - this.progressBar1.BackColor = System.Drawing.SystemColors.Control; - this.progressBar1.Dock = System.Windows.Forms.DockStyle.Fill; - this.progressBar1.Location = new System.Drawing.Point(205, 69); - this.progressBar1.Name = "progressBar1"; - this.progressBar1.Size = new System.Drawing.Size(196, 30); - this.progressBar1.Style = System.Windows.Forms.ProgressBarStyle.Continuous; - this.progressBar1.TabIndex = 15; - // - // label6 - // - this.label6.AutoSize = true; - this.label6.Dock = System.Windows.Forms.DockStyle.Fill; - this.label6.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label6.Location = new System.Drawing.Point(205, 52); - this.label6.Name = "label6"; - this.label6.Size = new System.Drawing.Size(196, 14); - this.label6.TabIndex = 16; - this.label6.Text = "Progress"; - // - // label7 - // - this.label7.AutoSize = true; - this.label7.Dock = System.Windows.Forms.DockStyle.Fill; - this.label7.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label7.Location = new System.Drawing.Point(205, 252); - this.label7.Name = "label7"; - this.label7.Size = new System.Drawing.Size(196, 14); - this.label7.TabIndex = 18; - this.label7.Text = "Total Exceptions"; - // - // totalExceptions_textBox - // - this.totalExceptions_textBox.BackColor = System.Drawing.Color.Black; - this.totalExceptions_textBox.Cursor = System.Windows.Forms.Cursors.Default; - this.totalExceptions_textBox.Font = new System.Drawing.Font("Courier New", 15.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.totalExceptions_textBox.ForeColor = System.Drawing.Color.Red; - this.totalExceptions_textBox.Location = new System.Drawing.Point(3, 3); - this.totalExceptions_textBox.Margin = new System.Windows.Forms.Padding(3); - this.totalExceptions_textBox.Name = "totalExceptions_textBox"; - this.totalExceptions_textBox.Size = new System.Drawing.Size(155, 30); - this.totalExceptions_textBox.TabIndex = 17; - this.totalExceptions_textBox.TextAlign = System.Drawing.ContentAlignment.MiddleRight; - this.totalExceptions_textBox.Click += new System.EventHandler(this.totalExceptions_textBox_Click); - // - // mainUITimer - // - this.mainUITimer.Tick += new System.EventHandler(this.mainUITimer_Tick); - // - // label8 - // - this.label8.AutoSize = true; - this.label8.Dock = System.Windows.Forms.DockStyle.Fill; - this.label8.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label8.Location = new System.Drawing.Point(205, 102); - this.label8.Name = "label8"; - this.label8.Size = new System.Drawing.Size(196, 14); - this.label8.TabIndex = 20; - this.label8.Text = "Elapsed Time"; - // - // elapsedTime_textBox - // - this.elapsedTime_textBox.BackColor = System.Drawing.Color.Black; - this.elapsedTime_textBox.Cursor = System.Windows.Forms.Cursors.Default; - this.elapsedTime_textBox.Dock = System.Windows.Forms.DockStyle.Fill; - this.elapsedTime_textBox.Font = new System.Drawing.Font("Courier New", 15.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.elapsedTime_textBox.ForeColor = System.Drawing.Color.Lime; - this.elapsedTime_textBox.Location = new System.Drawing.Point(205, 119); - this.elapsedTime_textBox.Margin = new System.Windows.Forms.Padding(3); - this.elapsedTime_textBox.Name = "elapsedTime_textBox"; - this.elapsedTime_textBox.Size = new System.Drawing.Size(196, 30); - this.elapsedTime_textBox.TabIndex = 19; - this.elapsedTime_textBox.TextAlign = System.Drawing.ContentAlignment.MiddleRight; - // - // perfCounterTimer - // - this.perfCounterTimer.Interval = 2500; - // - // database_button - // - this.database_button.Dock = System.Windows.Forms.DockStyle.Fill; - this.database_button.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.database_button.Location = new System.Drawing.Point(3, 69); - this.database_button.Name = "database_button"; - this.database_button.Size = new System.Drawing.Size(196, 30); - this.database_button.TabIndex = 22; - this.database_button.Text = "Database"; - this.database_button.UseVisualStyleBackColor = true; - this.database_button.Click += new System.EventHandler(this.database_button_Click); - // - // iterationsSecond_textBox - // - this.iterationsSecond_textBox.BackColor = System.Drawing.Color.Black; - this.iterationsSecond_textBox.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D; - this.iterationsSecond_textBox.Dock = System.Windows.Forms.DockStyle.Fill; - this.iterationsSecond_textBox.Font = new System.Drawing.Font("Courier New", 15.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.iterationsSecond_textBox.ForeColor = System.Drawing.Color.Lime; - this.iterationsSecond_textBox.Location = new System.Drawing.Point(205, 169); - this.iterationsSecond_textBox.Margin = new System.Windows.Forms.Padding(3); - this.iterationsSecond_textBox.Name = "iterationsSecond_textBox"; - this.iterationsSecond_textBox.Size = new System.Drawing.Size(196, 30); - this.iterationsSecond_textBox.TabIndex = 23; - this.iterationsSecond_textBox.TextAlign = System.Drawing.ContentAlignment.MiddleRight; - // - // exceptions_button - // - this.exceptions_button.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.exceptions_button.Location = new System.Drawing.Point(164, 3); - this.exceptions_button.Name = "exceptions_button"; - this.exceptions_button.Size = new System.Drawing.Size(27, 23); - this.exceptions_button.TabIndex = 24; - this.exceptions_button.Text = "..."; - this.exceptions_button.UseVisualStyleBackColor = true; - this.exceptions_button.Click += new System.EventHandler(this.exceptions_button_Click); - // - // label9 - // - this.label9.AutoSize = true; - this.label9.Dock = System.Windows.Forms.DockStyle.Fill; - this.label9.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label9.Location = new System.Drawing.Point(3, 252); - this.label9.Name = "label9"; - this.label9.Size = new System.Drawing.Size(196, 14); - this.label9.TabIndex = 26; - this.label9.Text = "CPU Seconds/Iteration (Avg)"; - // - // cpuTime_textBox - // - this.cpuTime_textBox.BackColor = System.Drawing.Color.Black; - this.cpuTime_textBox.Cursor = System.Windows.Forms.Cursors.Default; - this.cpuTime_textBox.Dock = System.Windows.Forms.DockStyle.Fill; - this.cpuTime_textBox.Font = new System.Drawing.Font("Courier New", 15.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.cpuTime_textBox.ForeColor = System.Drawing.Color.Lime; - this.cpuTime_textBox.Location = new System.Drawing.Point(3, 269); - this.cpuTime_textBox.Margin = new System.Windows.Forms.Padding(3); - this.cpuTime_textBox.Name = "cpuTime_textBox"; - this.cpuTime_textBox.Size = new System.Drawing.Size(196, 30); - this.cpuTime_textBox.TabIndex = 25; - this.cpuTime_textBox.TextAlign = System.Drawing.ContentAlignment.MiddleRight; - // - // label10 - // - this.label10.AutoSize = true; - this.label10.Dock = System.Windows.Forms.DockStyle.Fill; - this.label10.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label10.Location = new System.Drawing.Point(3, 302); - this.label10.Name = "label10"; - this.label10.Size = new System.Drawing.Size(196, 14); - this.label10.TabIndex = 28; - this.label10.Text = "Actual Seconds/Iteration (Avg)"; - // - // actualSeconds_textBox - // - this.actualSeconds_textBox.BackColor = System.Drawing.Color.Black; - this.actualSeconds_textBox.Cursor = System.Windows.Forms.Cursors.Default; - this.actualSeconds_textBox.Dock = System.Windows.Forms.DockStyle.Fill; - this.actualSeconds_textBox.Font = new System.Drawing.Font("Courier New", 15.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.actualSeconds_textBox.ForeColor = System.Drawing.Color.Lime; - this.actualSeconds_textBox.Location = new System.Drawing.Point(3, 319); - this.actualSeconds_textBox.Margin = new System.Windows.Forms.Padding(3); - this.actualSeconds_textBox.Name = "actualSeconds_textBox"; - this.actualSeconds_textBox.Size = new System.Drawing.Size(196, 30); - this.actualSeconds_textBox.TabIndex = 27; - this.actualSeconds_textBox.TextAlign = System.Drawing.ContentAlignment.MiddleRight; - // - // label12 - // - this.label12.AutoSize = true; - this.label12.Dock = System.Windows.Forms.DockStyle.Fill; - this.label12.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label12.Location = new System.Drawing.Point(205, 302); - this.label12.Name = "label12"; - this.label12.Size = new System.Drawing.Size(196, 14); - this.label12.TabIndex = 30; - this.label12.Text = "Logical Reads/Iteration (Avg)"; - // - // logicalReads_textBox - // - this.logicalReads_textBox.BackColor = System.Drawing.Color.Black; - this.logicalReads_textBox.Cursor = System.Windows.Forms.Cursors.Default; - this.logicalReads_textBox.Dock = System.Windows.Forms.DockStyle.Fill; - this.logicalReads_textBox.Font = new System.Drawing.Font("Courier New", 15.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.logicalReads_textBox.ForeColor = System.Drawing.Color.Lime; - this.logicalReads_textBox.Location = new System.Drawing.Point(205, 319); - this.logicalReads_textBox.Margin = new System.Windows.Forms.Padding(3); - this.logicalReads_textBox.Name = "logicalReads_textBox"; - this.logicalReads_textBox.Size = new System.Drawing.Size(196, 30); - this.logicalReads_textBox.TabIndex = 29; - this.logicalReads_textBox.TextAlign = System.Drawing.ContentAlignment.MiddleRight; - // - // db_label - // - this.db_label.AutoSize = true; - this.db_label.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.db_label.Location = new System.Drawing.Point(55, 32); - this.db_label.Name = "db_label"; - this.db_label.Size = new System.Drawing.Size(0, 13); - this.db_label.TabIndex = 31; - // - // tableLayoutPanel1 - // - this.tableLayoutPanel1.ColumnCount = 2; - this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 202F)); - this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 202F)); - this.tableLayoutPanel1.Controls.Add(this.logicalReads_textBox, 1, 12); - this.tableLayoutPanel1.Controls.Add(this.label12, 1, 11); - this.tableLayoutPanel1.Controls.Add(this.label2, 0, 5); - this.tableLayoutPanel1.Controls.Add(this.iterations_numericUpDown, 0, 6); - this.tableLayoutPanel1.Controls.Add(this.threads_numericUpDown, 0, 8); - this.tableLayoutPanel1.Controls.Add(this.label3, 0, 7); - this.tableLayoutPanel1.Controls.Add(this.database_button, 0, 2); - this.tableLayoutPanel1.Controls.Add(this.label9, 0, 9); - this.tableLayoutPanel1.Controls.Add(this.label10, 0, 11); - this.tableLayoutPanel1.Controls.Add(this.cpuTime_textBox, 0, 10); - this.tableLayoutPanel1.Controls.Add(this.flowLayoutPanel1, 1, 10); - this.tableLayoutPanel1.Controls.Add(this.actualSeconds_textBox, 0, 12); - this.tableLayoutPanel1.Controls.Add(this.label7, 1, 9); - this.tableLayoutPanel1.Controls.Add(this.avgSeconds_textBox, 1, 8); - this.tableLayoutPanel1.Controls.Add(this.label5, 1, 7); - this.tableLayoutPanel1.Controls.Add(this.iterationsSecond_textBox, 1, 6); - this.tableLayoutPanel1.Controls.Add(this.label4, 1, 5); - this.tableLayoutPanel1.Controls.Add(this.label6, 1, 1); - this.tableLayoutPanel1.Controls.Add(this.label8, 1, 3); - this.tableLayoutPanel1.Controls.Add(this.progressBar1, 1, 2); - this.tableLayoutPanel1.Controls.Add(this.elapsedTime_textBox, 1, 4); - this.tableLayoutPanel1.Controls.Add(this.tableLayoutPanel2, 1, 0); - this.tableLayoutPanel1.Controls.Add(this.param_button, 0, 4); - this.tableLayoutPanel1.Controls.Add(this.tableLayoutPanel4, 0, 0); - this.tableLayoutPanel1.Location = new System.Drawing.Point(326, 3); - this.tableLayoutPanel1.Name = "tableLayoutPanel1"; - this.tableLayoutPanel1.RowCount = 14; - this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 52F)); - this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 14F)); - this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 36F)); - this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 14F)); - this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 36F)); - this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 14F)); - this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 36F)); - this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 14F)); - this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 36F)); - this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 14F)); - this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 36F)); - this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 14F)); - this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 36F)); - this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 100F)); - this.tableLayoutPanel1.Size = new System.Drawing.Size(404, 354); - this.tableLayoutPanel1.TabIndex = 32; - // - // flowLayoutPanel1 - // - this.flowLayoutPanel1.Controls.Add(this.totalExceptions_textBox); - this.flowLayoutPanel1.Controls.Add(this.exceptions_button); - this.flowLayoutPanel1.Dock = System.Windows.Forms.DockStyle.Fill; - this.flowLayoutPanel1.Location = new System.Drawing.Point(205, 269); - this.flowLayoutPanel1.Name = "flowLayoutPanel1"; - this.flowLayoutPanel1.Size = new System.Drawing.Size(196, 30); - this.flowLayoutPanel1.TabIndex = 31; - // - // tableLayoutPanel2 - // - this.tableLayoutPanel2.ColumnCount = 2; - this.tableLayoutPanel2.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 50F)); - this.tableLayoutPanel2.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 50F)); - this.tableLayoutPanel2.Controls.Add(this.cancel_button, 1, 0); - this.tableLayoutPanel2.Controls.Add(this.go_button, 0, 0); - this.tableLayoutPanel2.Dock = System.Windows.Forms.DockStyle.Fill; - this.tableLayoutPanel2.Location = new System.Drawing.Point(205, 3); - this.tableLayoutPanel2.Name = "tableLayoutPanel2"; - this.tableLayoutPanel2.RowCount = 1; - this.tableLayoutPanel2.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 50F)); - this.tableLayoutPanel2.Size = new System.Drawing.Size(196, 46); - this.tableLayoutPanel2.TabIndex = 32; - // - // param_button - // - this.param_button.Dock = System.Windows.Forms.DockStyle.Fill; - this.param_button.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.param_button.Location = new System.Drawing.Point(3, 119); - this.param_button.Name = "param_button"; - this.param_button.Size = new System.Drawing.Size(196, 30); - this.param_button.TabIndex = 21; - this.param_button.Text = "Parameter Substitution"; - this.param_button.UseVisualStyleBackColor = true; - this.param_button.Click += new System.EventHandler(this.param_button_Click); - // - // tableLayoutPanel4 - // - this.tableLayoutPanel4.ColumnCount = 2; - this.tableLayoutPanel4.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 50F)); - this.tableLayoutPanel4.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 50F)); - this.tableLayoutPanel4.Controls.Add(this.btnFreeCache, 1, 0); - this.tableLayoutPanel4.Controls.Add(this.btnCleanBuffer, 0, 0); - this.tableLayoutPanel4.Dock = System.Windows.Forms.DockStyle.Fill; - this.tableLayoutPanel4.Location = new System.Drawing.Point(3, 3); - this.tableLayoutPanel4.Name = "tableLayoutPanel4"; - this.tableLayoutPanel4.RowCount = 2; - this.tableLayoutPanel4.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 50F)); - this.tableLayoutPanel4.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 50F)); - this.tableLayoutPanel4.Size = new System.Drawing.Size(196, 46); - this.tableLayoutPanel4.TabIndex = 33; - // - // btnFreeCache - // - this.btnFreeCache.Dock = System.Windows.Forms.DockStyle.Fill; - this.btnFreeCache.Location = new System.Drawing.Point(99, 1); - this.btnFreeCache.Margin = new System.Windows.Forms.Padding(1); - this.btnFreeCache.Name = "btnFreeCache"; - this.btnFreeCache.Size = new System.Drawing.Size(96, 21); - this.btnFreeCache.TabIndex = 1; - this.btnFreeCache.Text = "Free Cache"; - this.btnFreeCache.UseVisualStyleBackColor = true; - this.btnFreeCache.Click += new System.EventHandler(this.btnFreeCache_Click); - // - // btnCleanBuffer - // - this.btnCleanBuffer.Dock = System.Windows.Forms.DockStyle.Fill; - this.btnCleanBuffer.Location = new System.Drawing.Point(1, 1); - this.btnCleanBuffer.Margin = new System.Windows.Forms.Padding(1); - this.btnCleanBuffer.Name = "btnCleanBuffer"; - this.btnCleanBuffer.Size = new System.Drawing.Size(96, 21); - this.btnCleanBuffer.TabIndex = 0; - this.btnCleanBuffer.Text = "Clean Buffers"; - this.btnCleanBuffer.UseVisualStyleBackColor = true; - this.btnCleanBuffer.Click += new System.EventHandler(this.btnCleanBuffer_Click); - // - // tableLayoutPanel3 - // - this.tableLayoutPanel3.ColumnCount = 2; - this.tableLayoutPanel3.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 100F)); - this.tableLayoutPanel3.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle()); - this.tableLayoutPanel3.Controls.Add(this.query_textBox, 0, 0); - this.tableLayoutPanel3.Controls.Add(this.tableLayoutPanel1, 1, 0); - this.tableLayoutPanel3.Dock = System.Windows.Forms.DockStyle.Fill; - this.tableLayoutPanel3.Location = new System.Drawing.Point(0, 24); - this.tableLayoutPanel3.Name = "tableLayoutPanel3"; - this.tableLayoutPanel3.RowCount = 1; - this.tableLayoutPanel3.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 100F)); - this.tableLayoutPanel3.Size = new System.Drawing.Size(733, 360); - this.tableLayoutPanel3.TabIndex = 33; - // - // Form1 - // - this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); - this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; - this.AutoSize = true; - this.ClientSize = new System.Drawing.Size(733, 384); - this.Controls.Add(this.tableLayoutPanel3); - this.Controls.Add(this.db_label); - this.Controls.Add(this.label1); - this.Controls.Add(this.menuStrip1); - this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon"))); - this.MainMenuStrip = this.menuStrip1; - this.MaximizeBox = false; - this.MinimumSize = new System.Drawing.Size(749, 423); - this.Name = "Form1"; - this.Text = "SQLQueryStress"; - this.menuStrip1.ResumeLayout(false); - this.menuStrip1.PerformLayout(); - ((System.ComponentModel.ISupportInitialize)(this.iterations_numericUpDown)).EndInit(); - ((System.ComponentModel.ISupportInitialize)(this.threads_numericUpDown)).EndInit(); - this.tableLayoutPanel1.ResumeLayout(false); - this.tableLayoutPanel1.PerformLayout(); - this.flowLayoutPanel1.ResumeLayout(false); - this.tableLayoutPanel2.ResumeLayout(false); - this.tableLayoutPanel4.ResumeLayout(false); - this.tableLayoutPanel3.ResumeLayout(false); - this.ResumeLayout(false); - this.PerformLayout(); - - } - - #endregion - - private System.Windows.Forms.RichTextBox query_textBox; - private System.Windows.Forms.Label label1; - private System.Windows.Forms.MenuStrip menuStrip1; - private System.Windows.Forms.Button go_button; - private System.Windows.Forms.Label label2; - private System.Windows.Forms.Label label3; - private System.Windows.Forms.NumericUpDown iterations_numericUpDown; - private System.Windows.Forms.NumericUpDown threads_numericUpDown; - private System.Windows.Forms.Button cancel_button; - private System.Windows.Forms.Label label4; - private System.Windows.Forms.ToolStripMenuItem fileToolStripMenuItem; - private System.Windows.Forms.ToolStripSeparator toolStripSeparator1; - private System.Windows.Forms.ToolStripMenuItem exitToolStripMenuItem; - private System.ComponentModel.BackgroundWorker backgroundWorker1; - private System.Windows.Forms.Label label5; - private System.Windows.Forms.Label avgSeconds_textBox; - private System.Windows.Forms.ProgressBar progressBar1; - private System.Windows.Forms.Label label6; - private System.Windows.Forms.Label label7; - private System.Windows.Forms.Label totalExceptions_textBox; - private System.Windows.Forms.Timer mainUITimer; - private System.Windows.Forms.Label label8; - private System.Windows.Forms.Label elapsedTime_textBox; - private System.Windows.Forms.Timer perfCounterTimer; - private System.Windows.Forms.ToolStripMenuItem helpToolStripMenuItem; - private System.Windows.Forms.ToolStripMenuItem aboutToolStripMenuItem; - private System.Windows.Forms.Button database_button; - private System.Windows.Forms.Label iterationsSecond_textBox; - private System.Windows.Forms.ToolStripMenuItem saveSettingsToolStripMenuItem; - private System.Windows.Forms.ToolStripMenuItem loadSettingsToolStripMenuItem; - private System.Windows.Forms.Button exceptions_button; - private System.Windows.Forms.SaveFileDialog saveFileDialog1; - private System.Windows.Forms.OpenFileDialog openFileDialog1; - private System.Windows.Forms.Label label9; - private System.Windows.Forms.Label cpuTime_textBox; - private System.Windows.Forms.Label label10; - private System.Windows.Forms.Label actualSeconds_textBox; - private System.Windows.Forms.Label label12; - private System.Windows.Forms.Label logicalReads_textBox; - private System.Windows.Forms.ToolStripMenuItem optionsToolStripMenuItem; - private System.Windows.Forms.Label db_label; - private TableLayoutPanel tableLayoutPanel1; - private FlowLayoutPanel flowLayoutPanel1; - private TableLayoutPanel tableLayoutPanel2; - private Button param_button; - private TableLayoutPanel tableLayoutPanel3; - private TableLayoutPanel tableLayoutPanel4; - private Button btnFreeCache; - private Button btnCleanBuffer; - } -} - diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/Form1.cs b/Solution/SQLQueryStress/src/SQLQueryStress/Form1.cs deleted file mode 100644 index 7cf4959e..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/Form1.cs +++ /dev/null @@ -1,533 +0,0 @@ -#region - -using System; -using System.Collections.Generic; -using System.ComponentModel; -using System.Data; -using System.IO; -using System.Runtime.Serialization; -using System.Runtime.Serialization.Formatters.Binary; -using System.Windows.Forms; -using SQLQueryStress.Properties; - -#endregion - -/********************************************* -TODO, version 1.0:::: - * figure out how to capture change of selection in parameter definer - * Bug: Dotfuscated version crashes in some cases (need to verify this) - * Bug: Dotfuscated version can't load non-dotfuscated .sqlstress files - * - * Throw a message box if param database has not been selected, or if can't connect (if parameterization is on) - * repaint exception window when datatable is updated - * Bug w/ stats sometimes going blank ?? - *********************************************/ - -namespace SQLQueryStress -{ - public partial class Form1 : Form - { - private const string Dashes = "---"; - - //Has this run been cancelled? - private bool _cancelled; - //Exceptions that occurred - private Dictionary _exceptions; - - //The exception viewer window - private DataViewer _exceptionViewer; - //Exit as soon as cancellation is finished? - private bool _exitOnComplete; - - /* Configuration local */ - private QueryStressSettings _settings = new QueryStressSettings(); - - //start of the load - private TimeSpan _start; - //total CPU time in milliseconds - private double _totalCpuTime; - - //total elapsed time in milliseconds - private double _totalElapsedTime; - - //total exceptions - private int _totalExceptions; - - //threads * iterations - private int _totalExpectedIterations; - /* Runtime locals */ - - //total iterations that have run - private int _totalIterations; - - //Same comments as above for these two... - private double _totalLogicalReads; - private int _totalReadMessages; - - //This is the total time as reported by the client - private double _totalTime; - //Number of query requests that returned time messages - //Note:: Average times will be computed by: - // A) Add up all results from time messages returned by - // each query output - // B) If the query returned one or more time messages, - // increment the totalTimeMessages counter - // C) Add the TOTAL of all messages to the total counters - // D) Divide to find the actual time - //TODO: Find out why elapsed time is not accurate in - //some cases. For instance, look at time reported for - //WAITFOR DELAY '00:00:05' (1300 ms?? WTF??) - private int _totalTimeMessages; - - public Form1(string configFile) : this() - { - OpenConfigFile(configFile); - } - - public Form1() - { - InitializeComponent(); - - saveFileDialog1.DefaultExt = "sqlstress"; - saveFileDialog1.Filter = @"SQLQueryStress Configuration Files|*.sqlstress"; - saveFileDialog1.FileOk += saveFileDialog1_FileOk; - - openFileDialog1.DefaultExt = "sqlstress"; - openFileDialog1.Filter = @"SQLQueryStress Configuration Files|*.sqlstress"; - openFileDialog1.FileOk += openFileDialog1_FileOk; - } - - private void aboutToolStripMenuItem_Click(object sender, EventArgs e) - { - var a = new AboutBox(); - a.ShowDialog(); - } - - private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e) - { - ((LoadEngine) e.Argument).StartLoad(backgroundWorker1); - } - - private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e) - { - var output = (LoadEngine.QueryOutput) e.UserState; - - _totalIterations++; - - if (output.LogicalReads > 0) - { - _totalReadMessages++; - _totalLogicalReads += output.LogicalReads; - } - - if (output.ElapsedTime > 0) - { - _totalTimeMessages++; - _totalCpuTime += output.CpuTime; - _totalElapsedTime += output.ElapsedTime; - } - - _totalTime += output.Time.TotalMilliseconds; - - if (output.E != null) - { - _totalExceptions++; - string theMessage; - - //strip the time stats, if they showed up as part - //of the exception - if (_settings.CollectTimeStats) - { - var matchPos = output.E.Message.IndexOf("SQL Server parse and compile time:", StringComparison.Ordinal); - - theMessage = matchPos > -1 ? output.E.Message.Substring(0, matchPos - 2) : output.E.Message; - } - else - { - theMessage = output.E.Message; - } - - if (!_exceptions.ContainsKey(theMessage)) - { - _exceptions.Add(theMessage, 1); - } - else - { - _exceptions[theMessage] += 1; - } - - //TODO: Get this working? -- Repaint exceptions as they occur? - /* - if ((exceptionViewer != null) && (exceptionViewer.WindowState == FormWindowState.Normal)) - { - exceptionViewer.Invoke(new System.Threading.ThreadStart(exceptionViewer.Repaint)); - } - */ - } - } - - private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) - { - mainUITimer.Stop(); - - UpdateUi(); - - go_button.Enabled = true; - cancel_button.Enabled = false; - threads_numericUpDown.Enabled = true; - iterations_numericUpDown.Enabled = true; - - if (!_cancelled) - progressBar1.Value = 100; - - ((BackgroundWorker) sender).Dispose(); - - db_label.Text = ""; - - if (_exitOnComplete) - { - Dispose(); - } - } - - private void cancel_button_Click(object sender, EventArgs e) - { - cancel_button.Enabled = false; - - backgroundWorker1.CancelAsync(); - - _cancelled = true; - - if (sender is string) - { - _exitOnComplete = true; - } - } - - private void database_button_Click(object sender, EventArgs e) - { - var dbselect = new DatabaseSelect(_settings) {StartPosition = FormStartPosition.CenterParent}; - dbselect.ShowDialog(); - } - - private void exceptions_button_Click(object sender, EventArgs e) - { - totalExceptions_textBox_Click(null, null); - } - - private void exitToolStripMenuItem_Click(object sender, EventArgs e) - { - Dispose(); - } - - private void go_button_Click(object sender, EventArgs e) - { - if (!_settings.MainDbConnectionInfo.TestConnection()) - { - MessageBox.Show(Resources.MustSetValidDbConnInfo); - return; - } - - _cancelled = false; - _exitOnComplete = false; - - _exceptions = new Dictionary(); - - _totalIterations = 0; - _totalTime = 0; - _totalCpuTime = 0; - _totalElapsedTime = 0; - _totalTimeMessages = 0; - _totalLogicalReads = 0; - _totalReadMessages = 0; - _totalExceptions = 0; - - iterationsSecond_textBox.Text = "0"; - avgSeconds_textBox.Text = "0.0"; - actualSeconds_textBox.Text = Dashes; - cpuTime_textBox.Text = Dashes; - logicalReads_textBox.Text = Dashes; - go_button.Enabled = false; - cancel_button.Enabled = true; - iterations_numericUpDown.Enabled = false; - threads_numericUpDown.Enabled = false; - - progressBar1.Value = 0; - - SaveSettingsFromForm1(); - - _totalExpectedIterations = _settings.NumThreads * _settings.NumIterations; - - var paramConnectionInfo = _settings.ShareDbSettings ? _settings.MainDbConnectionInfo : _settings.ParamDbConnectionInfo; - db_label.Text = "" + "Server: " + paramConnectionInfo.Server + - (paramConnectionInfo.Database.Length > 0 ? " // Database: " + paramConnectionInfo.Database : ""); - - var engine = new LoadEngine(_settings.MainDbConnectionInfo.ConnectionString, _settings.MainQuery, _settings.NumThreads, _settings.NumIterations, - _settings.ParamQuery, _settings.ParamMappings, paramConnectionInfo.ConnectionString, _settings.CommandTimeout, _settings.CollectIoStats, - _settings.CollectTimeStats, _settings.ForceDataRetrieval); - backgroundWorker1.RunWorkerAsync(engine); - - _start = new TimeSpan(DateTime.Now.Ticks); - - mainUITimer.Start(); - } - - private void loadSettingsToolStripMenuItem_Click(object sender, EventArgs e) - { - openFileDialog1.ShowDialog(); - } - - private void mainUITimer_Tick(object sender, EventArgs e) - { - UpdateUi(); - } - - private void OpenConfigFile(string fileName) - { - FileStream fs = null; - - try - { - fs = new FileStream(fileName, FileMode.Open); - var bf = new BinaryFormatter(); - - _settings = (QueryStressSettings) bf.Deserialize(fs); - } - catch - { - MessageBox.Show(Resources.ErrLoadingSettings); - } - finally - { - if (fs != null) - fs.Dispose(); - } - - query_textBox.Text = _settings.MainQuery; - threads_numericUpDown.Value = _settings.NumThreads; - iterations_numericUpDown.Value = _settings.NumIterations; - } - - private void openFileDialog1_FileOk(object sender, EventArgs e) - { - OpenConfigFile(openFileDialog1.FileName); - } - - private void optionsToolStripMenuItem_Click(object sender, EventArgs e) - { - var options = new Options(_settings); - options.ShowDialog(); - } - - private void param_button_Click(object sender, EventArgs e) - { - var p = new ParamWindow(_settings, query_textBox.Text) {StartPosition = FormStartPosition.CenterParent}; - p.ShowDialog(); - } - - private void saveFileDialog1_FileOk(object sender, EventArgs e) - { - FileStream fs = null; - - try - { - fs = new FileStream(saveFileDialog1.FileName, FileMode.Create); - var bf = new BinaryFormatter(); - - bf.Serialize(fs, _settings); - } - catch - { - MessageBox.Show(Resources.ErrorSavingSettings); - } - finally - { - if (fs != null) - fs.Dispose(); - } - } - - private void SaveSettingsFromForm1() - { - _settings.MainQuery = query_textBox.Text; - _settings.NumThreads = (int) threads_numericUpDown.Value; - _settings.NumIterations = (int) iterations_numericUpDown.Value; - } - - private void saveSettingsToolStripMenuItem_Click(object sender, EventArgs e) - { - SaveSettingsFromForm1(); - saveFileDialog1.ShowDialog(); - } - - private void totalExceptions_textBox_Click(object sender, EventArgs e) - { - _exceptionViewer = new DataViewer {StartPosition = FormStartPosition.CenterParent, Text = Resources.Exceptions}; - - - - var dt = new DataTable(); - dt.Columns.Add("Count"); - dt.Columns.Add("Exception"); - - if (_exceptions != null) - { - var values = _exceptions.Values.GetEnumerator(); - - foreach (var ex in _exceptions.Keys) - { - values.MoveNext(); - var count = values.Current; - dt.Rows.Add(count, ex); - } - } - - _exceptionViewer.DataView = dt; - - _exceptionViewer.ShowDialog(); - } - - private void UpdateUi() - { - iterationsSecond_textBox.Text = _totalIterations.ToString(); - var avgIterations = _totalIterations == 0 ? 0.0 : _totalTime / _totalIterations / 1000; - var avgCpu = _totalTimeMessages == 0 ? 0.0 : _totalCpuTime / _totalTimeMessages / 1000; - var avgActual = _totalTimeMessages == 0 ? 0.0 : _totalElapsedTime / _totalTimeMessages / 1000; - var avgReads = _totalReadMessages == 0 ? 0.0 : _totalLogicalReads / _totalReadMessages; - - avgSeconds_textBox.Text = avgIterations.ToString("0.0000"); - cpuTime_textBox.Text = _totalTimeMessages == 0 ? "---" : avgCpu.ToString("0.0000"); - actualSeconds_textBox.Text = _totalTimeMessages == 0 ? "---" : avgActual.ToString("0.0000"); - logicalReads_textBox.Text = _totalReadMessages == 0 ? "---" : avgReads.ToString("0.0000"); - - totalExceptions_textBox.Text = _totalExceptions.ToString(); - progressBar1.Value = (int) (_totalIterations / (decimal) _totalExpectedIterations * 100); - - var end = new TimeSpan(DateTime.Now.Ticks); - end = end.Subtract(_start); - - var theTime = end.ToString(); - - //Some systems return "hh:mm:ss" instead of "hh:mm:ss.0000" if - //there is no fractional part of the second. I'm not sure - //why, but this fixes it for now. - if (theTime.Length > 8) - elapsedTime_textBox.Text = theTime.Substring(0, 13); - else - elapsedTime_textBox.Text = theTime + ".0000"; - } - - [Serializable] - public class QueryStressSettings - { - /// - /// Collect I/O stats? - /// - public bool CollectIoStats; - - /// - /// Collect time stats? - /// - public bool CollectTimeStats; - - /// - /// command timeout - /// - public int CommandTimeout; - - /// - /// Connection Timeout - /// - public int ConnectionTimeout; - - /// - /// Enable pooling? - /// - public bool EnableConnectionPooling; - - /// - /// Force the client to retrieve all data? - /// - public bool ForceDataRetrieval; - - /// - /// Connection info for the DB in which to run the test - /// - public DatabaseSelect.ConnectionInfo MainDbConnectionInfo; - - /// - /// main query to test - /// - public string MainQuery; - - /// - /// Number of iterations to run per thread - /// - public int NumIterations; - - /// - /// Number of threads to test with - /// - public int NumThreads; - - /// - /// Connection info for the DB from which to get the paramaters - /// - public DatabaseSelect.ConnectionInfo ParamDbConnectionInfo; - - /// - /// mapped parameters - /// - public Dictionary ParamMappings; - - /// - /// query from which to take parameters - /// - public string ParamQuery; - - /// - /// Should the main db and param db share the same settings? - /// If so, use main db settings for the params - /// - public bool ShareDbSettings; - - public QueryStressSettings() - { - MainDbConnectionInfo = new DatabaseSelect.ConnectionInfo(this); - ShareDbSettings = true; - ParamDbConnectionInfo = new DatabaseSelect.ConnectionInfo(); - MainQuery = ""; - ParamQuery = ""; - NumThreads = 1; - NumIterations = 1; - ParamMappings = new Dictionary(); - ConnectionTimeout = 15; - CommandTimeout = 0; - EnableConnectionPooling = true; - CollectIoStats = true; - CollectTimeStats = true; - ForceDataRetrieval = false; - } - - [OnDeserialized] - private void FixSettings(StreamingContext context) - { - ConnectionTimeout = ConnectionTimeout == 0 ? 15 : ConnectionTimeout; - } - } - - private void btnCleanBuffer_Click(object sender, EventArgs e) - { - MessageBox.Show(LoadEngine.ExecuteCommand(_settings.MainDbConnectionInfo.ConnectionString, "DBCC DROPCLEANBUFFERS") - ? 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- private readonly string _connectionString; - private readonly bool _forceDataRetrieval; - private readonly int _iterations; - private readonly string _paramConnectionString; - private readonly Dictionary _paramMappings; - //private readonly List> queryOutInfoPool = new List>(); - private readonly string _paramQuery; - private readonly string _query; - private readonly List _threadPool = new List(); - private readonly int _threads; - - public LoadEngine(string connectionString, string query, int threads, int iterations, string paramQuery, Dictionary paramMappings, - string paramConnectionString, int commandTimeout, bool collectIoStats, bool collectTimeStats, bool forceDataRetrieval) - { - //Set the min pool size so that the pool does not have - //to get allocated in real-time - var builder = new SqlConnectionStringBuilder(connectionString) {MinPoolSize = threads}; - - _connectionString = builder.ConnectionString; - _query = query; - _threads = threads; - _iterations = iterations; - _paramQuery = paramQuery; - _paramMappings = paramMappings; - _paramConnectionString = paramConnectionString; - _commandTimeout = commandTimeout; - _collectIoStats = collectIoStats; - _collectTimeStats = collectTimeStats; - _forceDataRetrieval = forceDataRetrieval; - } - - public static bool ExecuteCommand(string connectionString, string sql) - { - using (var conn = new SqlConnection(connectionString)) - { - conn.Open(); - using (var cmd = new SqlCommand(sql, conn)) - { - cmd.ExecuteNonQuery(); - return true; - } - } - } - - public void StartLoad(BackgroundWorker worker) - { - var useParams = false; - - var badParams = new List(); - foreach (var theKey in _paramMappings.Keys) - { - if ((_paramMappings[theKey] == null) || (_paramMappings[theKey].Length == 0)) - { - badParams.Add(theKey); - } - } - - foreach (var theKey in badParams) - { - _paramMappings.Remove(theKey); - } - - //Need some parameters? - if (_paramMappings.Count > 0) - { - ParamServer.Initialize(_paramQuery, _paramConnectionString, _paramMappings); - useParams = true; - } - - //Initialize the connection pool - var conn = new SqlConnection(_connectionString); - //TODO: use this or not?? - SqlConnection.ClearPool(conn); - conn.Open(); - conn.Dispose(); - - //make sure the run cancelled flag is not set - QueryInput.RunCancelled = false; - - //Spin up the load threads - for (var i = 0; i < _threads; i++) - { - conn = new SqlConnection(_connectionString); - - //TODO: Figure out how to make this option work (maybe) - //conn.FireInfoMessageEventOnUserErrors = true; - - SqlCommand statsComm = null; - - var queryComm = new SqlCommand {CommandTimeout = _commandTimeout, Connection = conn, CommandText = _query}; - - if (useParams) - { - queryComm.Parameters.AddRange(ParamServer.GetParams()); - } - - var setStatistics = (_collectIoStats ? @"SET STATISTICS IO ON;" : "") + (_collectTimeStats ? @"SET STATISTICS TIME ON;" : ""); - - if (setStatistics.Length > 0) - { - statsComm = new SqlCommand {CommandTimeout = _commandTimeout, Connection = conn, CommandText = setStatistics}; - } - - //Queue queryOutInfo = new Queue(); - - var input = new QueryInput(statsComm, queryComm, -// this.queryOutInfo, - _iterations, _forceDataRetrieval); - - var theThread = new Thread(input.StartLoadThread) {Priority = ThreadPriority.BelowNormal}; - - _threadPool.Add(theThread); - _commandPool.Add(queryComm); - //queryOutInfoPool.Add(queryOutInfo); - } - - //Start the load threads - for (var i = 0; i < _threads; i++) - { - _threadPool[i].Start(); - } - - //Start reading the queue... - var finishedThreads = 0; - var cancelled = false; - - while (finishedThreads < _threads) - { -// for (int i = 0; i < threads; i++) -// { - // try - // { - QueryOutput theOut = null; - //lock (queryOutInfoPool[i]) - lock (QueryOutInfo) - { - //if (queryOutInfoPool[i].Count > 0) - //theOut = (queryOutput)queryOutInfoPool[i].Dequeue(); - if (QueryOutInfo.Count > 0) - theOut = QueryOutInfo.Dequeue(); - else - Monitor.Wait(QueryOutInfo); - } - - if (theOut != null) - { - //Report output to the UI - worker.ReportProgress((int) (finishedThreads / (decimal) _threads * 100), theOut); - - //TODO: Make this actually remove the queue from the pool so that it's not checked again -- maintain this with a bitmap, perhaps? - if (theOut.Finished) - finishedThreads++; - } - /* } - catch (InvalidOperationException e) - { - } - */ - - /* - if (theOut != null) - Thread.Sleep(200); - else - Thread.Sleep(10); - */ - // } - - //TODO: Remove this ? - GC.Collect(); - - if (worker.CancellationPending && !cancelled) - { - QueryInput.RunCancelled = true; - - //First, kill connections as fast as possible - SqlConnection.ClearAllPools(); - - //for each 20 threads, create a new thread dedicated - //to killing them - var threadNum = _threadPool.Count; - - var killerThreads = new List(); - while (threadNum > 0) - { - var i = threadNum <= 20 ? 0 : threadNum - 20; - - var killThreads = new Thread[threadNum - i < 1 ? threadNum : threadNum - i]; - var killCommands = new SqlCommand[threadNum - i < 1 ? threadNum : threadNum - i]; - - _threadPool.CopyTo(i, killThreads, 0, killThreads.Length); - _commandPool.CopyTo(i, killCommands, 0, killCommands.Length); - - for (var j = threadNum - 1; j >= i; j--) - { - _threadPool.RemoveAt(j); - _commandPool.RemoveAt(j); - } - - var kill = new ThreadKiller(killThreads, killCommands); - var killer = new Thread(kill.KillEm); - killer.Start(); - Thread.Sleep(0); - - killerThreads.Add(killer); - - threadNum = i; - } - - //wait for the kill threads to return - //before exiting... - foreach (var theThread in killerThreads) - { - theThread.Join(); - } - - cancelled = true; - } - } - - //clear any remaining messages -- these are almost certainly - //execeptions due to thread cancellation - //queryOutInfo.Clear(); - } - - - //TODO: Monostate pattern to be investigated (class is never instantiated) - private class ParamServer - { - private static int _currentRow; - private static int _numRows; - - //The actual params that will be filled - private static SqlParameter[] _outputParams; - //Map the param columns to ordinals in the data table - private static int[] _paramDtMappings; - private static DataTable _theParams; - - public static void GetNextRow_Values(SqlParameterCollection newParam) - { - var rowNum = Interlocked.Increment(ref _currentRow); - var dr = _theParams.Rows[rowNum % _numRows]; - - for (var i = 0; i < _outputParams.Length; i++) - { - newParam[i].Value = dr[_paramDtMappings[i]]; - } - } - - public static SqlParameter[] GetParams() - { - var newParam = new SqlParameter[_outputParams.Length]; - - for (var i = 0; i < _outputParams.Length; i++) - { - newParam[i] = (SqlParameter) ((ICloneable) _outputParams[i]).Clone(); - } - - return newParam; - } - - public static void Initialize(string paramQuery, string connString, Dictionary paramMappings) - { - var a = new SqlDataAdapter(paramQuery, connString); - _theParams = new DataTable(); - a.Fill(_theParams); - - _numRows = _theParams.Rows.Count; - - _outputParams = new SqlParameter[paramMappings.Keys.Count]; - _paramDtMappings = new int[paramMappings.Keys.Count]; - - //Populate the array of parameters that will be cloned and filled - //on each request - var i = 0; - foreach (var parameterName in paramMappings.Keys) - { - _outputParams[i] = new SqlParameter {ParameterName = parameterName}; - var paramColumn = paramMappings[parameterName]; - - //if there is a param mapped to this column - if (paramColumn != null) - _paramDtMappings[i] = _theParams.Columns[paramColumn].Ordinal; - - i++; - } - } - } - - private class QueryInput - { - [ThreadStatic] private static QueryOutput _outInfo; - - private static bool _runCancelled; - //This regex is used to find the number of logical reads - //in the messages collection returned in the queryOutput class - private static readonly Regex FindReads = new Regex(@"(?:Table \'\w{1,}\'. Scan count \d{1,}, logical reads )(\d{1,})", RegexOptions.Compiled); - - //This regex is used to find the CPU and elapsed time - //in the messages collection returned in the queryOutput class - private static readonly Regex FindTimes = - new Regex( - @"(?:SQL Server Execution Times:|SQL Server parse and compile time:)(?:\s{1,}CPU time = )(\d{1,})(?: ms,\s{1,}elapsed time = )(\d{1,})", - RegexOptions.Compiled); - - private readonly SqlCommand _queryComm; - - private readonly SqlCommand _statsComm; - - //private static Dictionary> theInfoMessages = new Dictionary>(); - - private readonly Stopwatch _sw = new Stopwatch(); - private readonly bool _forceDataRetrieval; - // private readonly Queue queryOutInfo; - private readonly int _iterations; - - public QueryInput(SqlCommand statsComm, SqlCommand queryComm, -// Queue queryOutInfo, - int iterations, bool forceDataRetrieval) - { - _statsComm = statsComm; - _queryComm = queryComm; -// this.queryOutInfo = queryOutInfo; - _iterations = iterations; - _forceDataRetrieval = forceDataRetrieval; - - //Prepare the infoMessages collection, if we are collecting statistics - //if (stats_comm != null) - // theInfoMessages.Add(stats_comm.Connection.GetHashCode(), new List()); - } - - public static bool RunCancelled - { - set { _runCancelled = value; } - } - - private static void GetInfoMessages(object sender, SqlInfoMessageEventArgs args) - { - foreach (SqlError err in args.Errors) - { - var matches = FindReads.Split(err.Message); - - //we have a read - if (matches.Length > 1) - { - _outInfo.LogicalReads += Convert.ToInt32(matches[1]); - continue; - } - - matches = FindTimes.Split(err.Message); - - //we have times - if (matches.Length > 1) - { - _outInfo.CpuTime += Convert.ToInt32(matches[1]); - _outInfo.ElapsedTime += Convert.ToInt32(matches[2]); - } - } - } - - public void StartLoadThread() - { - try - { - //do the work - using (var conn = _queryComm.Connection) - { - SqlInfoMessageEventHandler handler = GetInfoMessages; - - for (var i = 0; i < _iterations; i++) - { - if (_runCancelled) - throw new Exception(); - - Exception outException = null; - - try - { - //initialize the outInfo structure - _outInfo = new QueryOutput(); - - conn.Open(); - - //set up the statistics gathering - if (_statsComm != null) - { - _statsComm.ExecuteNonQuery(); - Thread.Sleep(0); - conn.InfoMessage += handler; - } - - //Params are assigned only once -- after that, their values are dynamically retrieved - if (_queryComm.Parameters.Count > 0) - { - ParamServer.GetNextRow_Values(_queryComm.Parameters); - } - - _sw.Start(); - - //TODO: This could be made better - if (_forceDataRetrieval) - { - var reader = _queryComm.ExecuteReader(); - Thread.Sleep(0); - - do - { - Thread.Sleep(0); - - while (reader.Read()) - { - //grab the first column to force the row down the pipe - var x = reader[0]; - Thread.Sleep(0); - } - } while (reader.NextResult()); - } - else - { - _queryComm.ExecuteNonQuery(); - Thread.Sleep(0); - } - - _sw.Stop(); - } - catch (Exception e) - { - if (_runCancelled) - throw; - else - outException = e; - - if (_sw.IsRunning) - { - _sw.Stop(); - } - } - finally - { - //Clean up the connection - if (_statsComm != null) - conn.InfoMessage -= handler; - } - - var finished = i == _iterations - 1; - - //List infoMessages = null; - - //infoMessages = (stats_comm != null) ? theInfoMessages[connectionHashCode] : null; - - /* - queryOutput theout = new queryOutput( - outException, - sw.Elapsed, - finished, - (infoMessages == null || infoMessages.Count == 0) ? null : infoMessages.ToArray()); - */ - - _outInfo.E = outException; - _outInfo.Time = _sw.Elapsed; - _outInfo.Finished = finished; - - lock (QueryOutInfo) - { - QueryOutInfo.Enqueue(_outInfo); - Monitor.Pulse(QueryOutInfo); - } - - //Prep the collection for the next round - //if (infoMessages != null && infoMessages.Count > 0) - // infoMessages.Clear(); - - _sw.Reset(); - } - } - } - catch - { - if (_runCancelled) - { - //queryOutput theout = new queryOutput(null, new TimeSpan(0), true, null); - _outInfo.Time = new TimeSpan(0); - _outInfo.Finished = true; - - lock (QueryOutInfo) - { - QueryOutInfo.Enqueue(_outInfo); - } - } - else - throw; - } - } - } - - public class QueryOutput - { - public int CpuTime; - public Exception E; - public int ElapsedTime; - public bool Finished; - public int LogicalReads; - public TimeSpan Time; - - /* - public queryOutput( - Exception e, - TimeSpan time, - bool finished, - string[] infoMessages) - { - this.e = e; - this.time = time; - this.finished = finished; - this.infoMessages = infoMessages; - } - */ - } - - private class ThreadKiller - { - private readonly SqlCommand[] _theCommands; - private readonly Thread[] _theThreads; - - public ThreadKiller(Thread[] theThreads, SqlCommand[] theCommands) - { - _theThreads = theThreads; - _theCommands = theCommands; - } - - public void KillEm() - { - foreach (var comm in _theCommands) - { - comm.Cancel(); - comm.Connection.Dispose(); - comm.Connection = null; - comm.Dispose(); - Thread.Sleep(0); - } - - var keepKilling = true; - - while (keepKilling) - { - keepKilling = false; - - foreach (var theThread in _theThreads) - { - if (theThread.IsAlive) - { - keepKilling = true; - theThread.Abort(); - Thread.Sleep(0); - } - } - } - } - } - } -} \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/Options.Designer.cs b/Solution/SQLQueryStress/src/SQLQueryStress/Options.Designer.cs deleted file mode 100644 index 15cd0620..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/Options.Designer.cs +++ /dev/null @@ -1,241 +0,0 @@ -namespace SQLQueryStress -{ - partial class Options - { - /// - /// Required designer variable. - /// - private System.ComponentModel.IContainer components = null; - - /// - /// Clean up any resources being used. - /// - /// true if managed resources should be disposed; otherwise, false. - protected override void Dispose(bool disposing) - { - if (disposing && (components != null)) - { - components.Dispose(); - } - base.Dispose(disposing); - } - - #region Windows Form Designer generated code - - /// - /// Required method for Designer support - do not modify - /// the contents of this method with the code editor. - /// - private void InitializeComponent() - { - this.IOStatistics_checkBox = new System.Windows.Forms.CheckBox(); - this.timeStatistics_checkBox = new System.Windows.Forms.CheckBox(); - this.label1 = new System.Windows.Forms.Label(); - this.label2 = new System.Windows.Forms.Label(); - this.connectionPooling_checkBox = new System.Windows.Forms.CheckBox(); - this.clientDataRetrieval_checkBox = new System.Windows.Forms.CheckBox(); - this.ok_button = new System.Windows.Forms.Button(); - this.cancel_button = new System.Windows.Forms.Button(); - this.groupBox1 = new System.Windows.Forms.GroupBox(); - this.connectionTimeout_numericUpDown = new System.Windows.Forms.NumericUpDown(); - this.groupBox2 = new System.Windows.Forms.GroupBox(); - this.commandTimeout_numericUpDown = new System.Windows.Forms.NumericUpDown(); - this.groupBox1.SuspendLayout(); - ((System.ComponentModel.ISupportInitialize)(this.connectionTimeout_numericUpDown)).BeginInit(); - this.groupBox2.SuspendLayout(); - ((System.ComponentModel.ISupportInitialize)(this.commandTimeout_numericUpDown)).BeginInit(); - this.SuspendLayout(); - // - // IOStatistics_checkBox - // - this.IOStatistics_checkBox.AutoSize = true; - this.IOStatistics_checkBox.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.IOStatistics_checkBox.Location = new System.Drawing.Point(6, 58); - this.IOStatistics_checkBox.Name = "IOStatistics_checkBox"; - this.IOStatistics_checkBox.Size = new System.Drawing.Size(144, 17); - this.IOStatistics_checkBox.TabIndex = 0; - this.IOStatistics_checkBox.Text = "Collect I/O Statistics"; - this.IOStatistics_checkBox.UseVisualStyleBackColor = true; - // - // timeStatistics_checkBox - // - this.timeStatistics_checkBox.AutoSize = true; - this.timeStatistics_checkBox.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.timeStatistics_checkBox.Location = new System.Drawing.Point(6, 81); - this.timeStatistics_checkBox.Name = "timeStatistics_checkBox"; - this.timeStatistics_checkBox.Size = new System.Drawing.Size(152, 17); - this.timeStatistics_checkBox.TabIndex = 1; - this.timeStatistics_checkBox.Text = "Collect Time Statistics"; - this.timeStatistics_checkBox.UseVisualStyleBackColor = true; - // - // label1 - // - this.label1.AutoSize = true; - this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label1.Location = new System.Drawing.Point(3, 17); - this.label1.Name = "label1"; - this.label1.Size = new System.Drawing.Size(120, 13); - this.label1.TabIndex = 3; - this.label1.Text = "Connection Timeout"; - // - // label2 - // - this.label2.AutoSize = true; - this.label2.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label2.Location = new System.Drawing.Point(3, 17); - this.label2.Name = "label2"; - this.label2.Size = new System.Drawing.Size(196, 13); - this.label2.TabIndex = 5; - this.label2.Text = "Command Timeout (0 = Unlimited)"; - // - // connectionPooling_checkBox - // - this.connectionPooling_checkBox.AutoSize = true; - this.connectionPooling_checkBox.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.connectionPooling_checkBox.Location = new System.Drawing.Point(6, 58); - this.connectionPooling_checkBox.Name = "connectionPooling_checkBox"; - this.connectionPooling_checkBox.Size = new System.Drawing.Size(179, 17); - this.connectionPooling_checkBox.TabIndex = 6; - this.connectionPooling_checkBox.Text = "Enable Connection Pooling"; - this.connectionPooling_checkBox.UseVisualStyleBackColor = true; - // - // clientDataRetrieval_checkBox - // - this.clientDataRetrieval_checkBox.AutoSize = true; - this.clientDataRetrieval_checkBox.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.clientDataRetrieval_checkBox.Location = new System.Drawing.Point(6, 104); - this.clientDataRetrieval_checkBox.Name = "clientDataRetrieval_checkBox"; - this.clientDataRetrieval_checkBox.Size = new System.Drawing.Size(195, 17); - this.clientDataRetrieval_checkBox.TabIndex = 7; - this.clientDataRetrieval_checkBox.Text = "Force Client Retrieval of Data"; - this.clientDataRetrieval_checkBox.UseVisualStyleBackColor = true; - // - // ok_button - // - this.ok_button.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.ok_button.Location = new System.Drawing.Point(344, 145); - this.ok_button.Name = "ok_button"; - this.ok_button.Size = new System.Drawing.Size(75, 23); - this.ok_button.TabIndex = 8; - this.ok_button.Text = "OK"; - this.ok_button.UseVisualStyleBackColor = true; - this.ok_button.Click += new System.EventHandler(this.ok_button_Click); - // - // cancel_button - // - this.cancel_button.DialogResult = System.Windows.Forms.DialogResult.Cancel; - this.cancel_button.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.cancel_button.Location = new System.Drawing.Point(425, 145); - this.cancel_button.Name = "cancel_button"; - this.cancel_button.Size = new System.Drawing.Size(75, 23); - this.cancel_button.TabIndex = 9; - this.cancel_button.Text = "Cancel"; - this.cancel_button.UseVisualStyleBackColor = true; - this.cancel_button.Click += new System.EventHandler(this.cancel_button_Click); - // - // groupBox1 - // - this.groupBox1.Controls.Add(this.connectionTimeout_numericUpDown); - this.groupBox1.Controls.Add(this.label1); - this.groupBox1.Controls.Add(this.connectionPooling_checkBox); - this.groupBox1.Location = new System.Drawing.Point(12, 12); - this.groupBox1.Name = "groupBox1"; - this.groupBox1.Size = new System.Drawing.Size(241, 127); - this.groupBox1.TabIndex = 10; - this.groupBox1.TabStop = false; - this.groupBox1.Text = "Connection Options"; - // - // connectionTimeout_numericUpDown - // - this.connectionTimeout_numericUpDown.Location = new System.Drawing.Point(6, 33); - this.connectionTimeout_numericUpDown.Maximum = new decimal(new int[] { - 60, - 0, - 0, - 0}); - this.connectionTimeout_numericUpDown.Minimum = new decimal(new int[] { - 1, - 0, - 0, - 0}); - this.connectionTimeout_numericUpDown.Name = "connectionTimeout_numericUpDown"; - this.connectionTimeout_numericUpDown.Size = new System.Drawing.Size(120, 20); - this.connectionTimeout_numericUpDown.TabIndex = 7; - this.connectionTimeout_numericUpDown.Value = new decimal(new int[] { - 1, - 0, - 0, - 0}); - // - // groupBox2 - // - this.groupBox2.Controls.Add(this.commandTimeout_numericUpDown); - this.groupBox2.Controls.Add(this.label2); - this.groupBox2.Controls.Add(this.IOStatistics_checkBox); - this.groupBox2.Controls.Add(this.timeStatistics_checkBox); - this.groupBox2.Controls.Add(this.clientDataRetrieval_checkBox); - this.groupBox2.Location = new System.Drawing.Point(259, 12); - this.groupBox2.Name = "groupBox2"; - this.groupBox2.Size = new System.Drawing.Size(241, 127); - this.groupBox2.TabIndex = 11; - this.groupBox2.TabStop = false; - this.groupBox2.Text = "Command Options"; - // - // commandTimeout_numericUpDown - // - this.commandTimeout_numericUpDown.Location = new System.Drawing.Point(6, 33); - this.commandTimeout_numericUpDown.Maximum = new decimal(new int[] { - 32767, - 0, - 0, - 0}); - this.commandTimeout_numericUpDown.Name = "commandTimeout_numericUpDown"; - this.commandTimeout_numericUpDown.Size = new System.Drawing.Size(120, 20); - this.commandTimeout_numericUpDown.TabIndex = 8; - this.commandTimeout_numericUpDown.Tag = ""; - // - // Options - // - this.AcceptButton = this.ok_button; - this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); - this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; - this.CancelButton = this.cancel_button; - this.ClientSize = new System.Drawing.Size(514, 178); - this.Controls.Add(this.groupBox2); - this.Controls.Add(this.groupBox1); - this.Controls.Add(this.cancel_button); - this.Controls.Add(this.ok_button); - this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog; - this.MaximizeBox = false; - this.MinimizeBox = false; - this.Name = "Options"; - this.ShowIcon = false; - this.ShowInTaskbar = false; - this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent; - this.Text = "Options"; - this.groupBox1.ResumeLayout(false); - this.groupBox1.PerformLayout(); - ((System.ComponentModel.ISupportInitialize)(this.connectionTimeout_numericUpDown)).EndInit(); - this.groupBox2.ResumeLayout(false); - this.groupBox2.PerformLayout(); - ((System.ComponentModel.ISupportInitialize)(this.commandTimeout_numericUpDown)).EndInit(); - this.ResumeLayout(false); - - } - - #endregion - - private System.Windows.Forms.CheckBox IOStatistics_checkBox; - private System.Windows.Forms.CheckBox timeStatistics_checkBox; - private System.Windows.Forms.Label label1; - private System.Windows.Forms.Label label2; - private System.Windows.Forms.CheckBox connectionPooling_checkBox; - private System.Windows.Forms.CheckBox clientDataRetrieval_checkBox; - private System.Windows.Forms.Button ok_button; - private System.Windows.Forms.Button cancel_button; - private System.Windows.Forms.GroupBox groupBox1; - private System.Windows.Forms.GroupBox groupBox2; - private System.Windows.Forms.NumericUpDown connectionTimeout_numericUpDown; - private System.Windows.Forms.NumericUpDown commandTimeout_numericUpDown; - } -} \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/Options.cs b/Solution/SQLQueryStress/src/SQLQueryStress/Options.cs deleted file mode 100644 index 1259f990..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/Options.cs +++ /dev/null @@ -1,45 +0,0 @@ -#region - -using System; -using System.Windows.Forms; - -#endregion - -namespace SQLQueryStress -{ - public partial class Options : Form - { - private readonly Form1.QueryStressSettings _settings; - - public Options(Form1.QueryStressSettings settings) - { - _settings = settings; - - InitializeComponent(); - - connectionTimeout_numericUpDown.Value = settings.ConnectionTimeout; - commandTimeout_numericUpDown.Value = settings.CommandTimeout; - connectionPooling_checkBox.Checked = settings.EnableConnectionPooling; - IOStatistics_checkBox.Checked = settings.CollectIoStats; - timeStatistics_checkBox.Checked = settings.CollectTimeStats; - clientDataRetrieval_checkBox.Checked = settings.ForceDataRetrieval; - } - - private void cancel_button_Click(object sender, EventArgs e) - { - Dispose(); - } - - private void ok_button_Click(object sender, EventArgs e) - { - _settings.ConnectionTimeout = (int) connectionTimeout_numericUpDown.Value; - _settings.CommandTimeout = (int) commandTimeout_numericUpDown.Value; - _settings.EnableConnectionPooling = connectionPooling_checkBox.Checked; - _settings.CollectIoStats = IOStatistics_checkBox.Checked; - _settings.CollectTimeStats = timeStatistics_checkBox.Checked; - _settings.ForceDataRetrieval = clientDataRetrieval_checkBox.Checked; - - Dispose(); - } - } -} \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/Options.resx b/Solution/SQLQueryStress/src/SQLQueryStress/Options.resx deleted file mode 100644 index 19dc0dd8..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/Options.resx +++ /dev/null @@ -1,120 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - text/microsoft-resx - - - 2.0 - - - System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 - - - System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 - - \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/ParamWindow.Designer.cs b/Solution/SQLQueryStress/src/SQLQueryStress/ParamWindow.Designer.cs deleted file mode 100644 index e9163656..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/ParamWindow.Designer.cs +++ /dev/null @@ -1,197 +0,0 @@ -namespace SQLQueryStress -{ - partial class ParamWindow - { - /// - /// Required designer variable. - /// - private System.ComponentModel.IContainer components = null; - - /// - /// Clean up any resources being used. - /// - /// true if managed resources should be disposed; otherwise, false. - protected override void Dispose(bool disposing) - { - if (disposing && (components != null)) - { - components.Dispose(); - } - base.Dispose(disposing); - } - - #region Windows Form Designer generated code - - /// - /// Required method for Designer support - do not modify - /// the contents of this method with the code editor. - /// - private void InitializeComponent() - { - this.columnMapGrid = new System.Windows.Forms.DataGridView(); - this.Column = new System.Windows.Forms.DataGridViewTextBoxColumn(); - this.Datatype = new System.Windows.Forms.DataGridViewTextBoxColumn(); - this.Parameter = new System.Windows.Forms.DataGridViewTextBoxColumn(); - this.paramQueryTextBox = new System.Windows.Forms.TextBox(); - this.label1 = new System.Windows.Forms.Label(); - this.getColumnsButton = new System.Windows.Forms.Button(); - this.okButton = new System.Windows.Forms.Button(); - this.cancelButton = new System.Windows.Forms.Button(); - this.label2 = new System.Windows.Forms.Label(); - this.database_button = new System.Windows.Forms.Button(); - ((System.ComponentModel.ISupportInitialize)(this.columnMapGrid)).BeginInit(); - this.SuspendLayout(); - // - // columnMapGrid - // - this.columnMapGrid.AllowUserToAddRows = false; - this.columnMapGrid.AllowUserToDeleteRows = false; - this.columnMapGrid.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize; - this.columnMapGrid.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] { - this.Column, - this.Datatype, - this.Parameter}); - this.columnMapGrid.Location = new System.Drawing.Point(12, 274); - this.columnMapGrid.Name = "columnMapGrid"; - this.columnMapGrid.ShowEditingIcon = false; - this.columnMapGrid.Size = new System.Drawing.Size(435, 185); - this.columnMapGrid.TabIndex = 0; - // - // Column - // - this.Column.HeaderText = "Parameter"; - this.Column.Name = "Column"; - this.Column.Width = 130; - // - // Datatype - // - this.Datatype.HeaderText = "Datatype"; - this.Datatype.Name = "Datatype"; - this.Datatype.Width = 130; - // - // Parameter - // - this.Parameter.HeaderText = "Column"; - this.Parameter.Name = "Parameter"; - this.Parameter.Width = 130; - // - // paramQueryTextBox - // - this.paramQueryTextBox.AcceptsReturn = true; - this.paramQueryTextBox.AcceptsTab = true; - this.paramQueryTextBox.AllowDrop = true; - this.paramQueryTextBox.Location = new System.Drawing.Point(12, 26); - this.paramQueryTextBox.Multiline = true; - this.paramQueryTextBox.Name = "paramQueryTextBox"; - this.paramQueryTextBox.ScrollBars = System.Windows.Forms.ScrollBars.Both; - this.paramQueryTextBox.Size = new System.Drawing.Size(435, 186); - this.paramQueryTextBox.TabIndex = 1; - // - // label1 - // - this.label1.AutoSize = true; - this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label1.Location = new System.Drawing.Point(12, 10); - this.label1.Name = "label1"; - this.label1.Size = new System.Drawing.Size(101, 13); - this.label1.TabIndex = 2; - this.label1.Text = "Parameter Query"; - // - // getColumnsButton - // - this.getColumnsButton.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.getColumnsButton.Location = new System.Drawing.Point(15, 219); - this.getColumnsButton.Name = "getColumnsButton"; - this.getColumnsButton.Size = new System.Drawing.Size(98, 23); - this.getColumnsButton.TabIndex = 3; - this.getColumnsButton.Text = "Get Columns"; - this.getColumnsButton.UseVisualStyleBackColor = true; - this.getColumnsButton.Click += new System.EventHandler(this.getColumnsButton_Click); - // - // okButton - // - this.okButton.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.okButton.Location = new System.Drawing.Point(291, 465); - this.okButton.Name = "okButton"; - this.okButton.Size = new System.Drawing.Size(75, 23); - this.okButton.TabIndex = 4; - this.okButton.Text = "OK"; - this.okButton.UseVisualStyleBackColor = true; - this.okButton.Click += new System.EventHandler(this.okButton_Click); - // - // cancelButton - // - this.cancelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel; - this.cancelButton.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.cancelButton.Location = new System.Drawing.Point(372, 465); - this.cancelButton.Name = "cancelButton"; - this.cancelButton.Size = new System.Drawing.Size(75, 23); - this.cancelButton.TabIndex = 5; - this.cancelButton.Text = "Cancel"; - this.cancelButton.UseVisualStyleBackColor = true; - this.cancelButton.Click += new System.EventHandler(this.cancelButton_Click); - // - // label2 - // - this.label2.AutoSize = true; - this.label2.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.label2.Location = new System.Drawing.Point(12, 258); - this.label2.Name = "label2"; - this.label2.Size = new System.Drawing.Size(122, 13); - this.label2.TabIndex = 6; - this.label2.Text = "Parameter Mappings"; - // - // database_button - // - this.database_button.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0))); - this.database_button.Location = new System.Drawing.Point(119, 219); - this.database_button.Name = "database_button"; - this.database_button.Size = new System.Drawing.Size(94, 23); - this.database_button.TabIndex = 7; - this.database_button.Text = "Database"; - this.database_button.UseVisualStyleBackColor = true; - this.database_button.Click += new System.EventHandler(this.database_button_Click); - // - // ParamWindow - // - this.AcceptButton = this.okButton; - this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); - this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; - this.CancelButton = this.cancelButton; - this.ClientSize = new System.Drawing.Size(462, 500); - this.Controls.Add(this.database_button); - this.Controls.Add(this.label2); - this.Controls.Add(this.cancelButton); - this.Controls.Add(this.okButton); - this.Controls.Add(this.getColumnsButton); - this.Controls.Add(this.label1); - this.Controls.Add(this.paramQueryTextBox); - this.Controls.Add(this.columnMapGrid); - this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog; - this.MaximizeBox = false; - this.MinimizeBox = false; - this.Name = "ParamWindow"; - this.ShowIcon = false; - this.ShowInTaskbar = false; - this.Text = "Parameter Substitution"; - ((System.ComponentModel.ISupportInitialize)(this.columnMapGrid)).EndInit(); - this.ResumeLayout(false); - this.PerformLayout(); - - } - - #endregion - - private System.Windows.Forms.TextBox paramQueryTextBox; - private System.Windows.Forms.Label label1; - private System.Windows.Forms.Button getColumnsButton; - private System.Windows.Forms.Button okButton; - private System.Windows.Forms.Button cancelButton; - private System.Windows.Forms.Label label2; - private System.Windows.Forms.Button database_button; - private System.Windows.Forms.DataGridView columnMapGrid; - private System.Windows.Forms.DataGridViewTextBoxColumn Column; - private System.Windows.Forms.DataGridViewTextBoxColumn Datatype; - private System.Windows.Forms.DataGridViewTextBoxColumn Parameter; - } -} \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/ParamWindow.cs b/Solution/SQLQueryStress/src/SQLQueryStress/ParamWindow.cs deleted file mode 100644 index 3d4b89d0..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/ParamWindow.cs +++ /dev/null @@ -1,200 +0,0 @@ -#region - -using System; -using System.Collections.Generic; -using System.Data; -using System.Data.SqlClient; -using System.Text.RegularExpressions; -using System.Windows.Forms; -using SQLQueryStress.Properties; - -#endregion - -namespace SQLQueryStress -{ - public partial class ParamWindow : Form - { - //load query defined in the main form - private readonly string _outerQuery; - - //parameter values from the parameter query defined in this form - private readonly Dictionary _paramValues = new Dictionary(); - - //Query Stress Settings - private readonly Form1.QueryStressSettings _settings; - - //Variables from the load query - private string[] _queryVariables; - - public ParamWindow(Form1.QueryStressSettings settings, string outerQuery) - { - InitializeComponent(); - - _settings = settings; - - _outerQuery = outerQuery; - - paramQueryTextBox.Text = (string) settings.ParamQuery.Clone(); - - columnMapGrid.Columns[0].SortMode = DataGridViewColumnSortMode.NotSortable; - columnMapGrid.Columns[1].SortMode = DataGridViewColumnSortMode.NotSortable; - columnMapGrid.Columns[2].SortMode = DataGridViewColumnSortMode.NotSortable; - - //TODO: Which event to handle?!?! - columnMapGrid.CellEndEdit += columnMapGrid_CellValueChanged; - - if ((outerQuery.Length > 0) && (paramQueryTextBox.Text.Length > 0)) - { - getColumnsButton_Click("constructor", null); - } - } - - private void cancelButton_Click(object sender, EventArgs e) - { - Dispose(); - } - - private void columnMapGrid_CellValueChanged(object sender, DataGridViewCellEventArgs e) - { - //handle changes to the parameter column - if (e.ColumnIndex == 2) - { - var theRow = columnMapGrid.Rows[e.RowIndex]; - var combo = (DataGridViewComboBoxCell) theRow.Cells[2]; - - if (combo.Value != null) - { - var colType = _paramValues[(string) combo.Value]; - theRow.Cells[1].Value = colType; - } - else - { - theRow.Cells[1].Value = ""; - } - } - } - - private void database_button_Click(object sender, EventArgs e) - { - var dbSelect = new DatabaseSelect(_settings) {StartPosition = FormStartPosition.CenterParent}; - dbSelect.ShowDialog(); - } - - private void getColumnsButton_Click(object sender, EventArgs e) - { - _queryVariables = GetParams(); - - SqlDataReader reader = null; - - var dbInfo = _settings.ShareDbSettings ? _settings.MainDbConnectionInfo : _settings.ParamDbConnectionInfo; - - if (!dbInfo.TestConnection()) - { - MessageBox.Show(Resources.MustSetValidDatabaseConn); - return; - } - - using (var conn = new SqlConnection(dbInfo.ConnectionString)) - { - try - { - var comm = new SqlCommand(paramQueryTextBox.Text, conn); - conn.Open(); - reader = comm.ExecuteReader(CommandBehavior.SchemaOnly); - } - catch (Exception ex) - { - MessageBox.Show(ex.Message); - } - - if (reader != null) - { - columnMapGrid.Rows.Clear(); - _paramValues.Clear(); - - for (var i = 0; i < reader.FieldCount; i++) - { - _paramValues.Add(reader.GetName(i), reader.GetDataTypeName(i)); - } - - reader.Dispose(); - - foreach (var variable in _queryVariables) - { - var colOrdinal = columnMapGrid.Rows.Add(); - var row = columnMapGrid.Rows[colOrdinal]; - row.Cells[0].Value = variable; - row.Cells[0].ReadOnly = true; - - //placeholder for columntype - row.Cells[1].Value = ""; - row.Cells[1].ReadOnly = true; - - var combo = new DataGridViewComboBoxCell(); - - combo.Items.Add(""); - - string s = sender as string; - bool checkParam = s != null && s == "constructor" && _settings.ParamMappings.ContainsKey(variable); - - foreach (var paramName in _paramValues.Keys) - { - combo.Items.Add(paramName); - - if (checkParam) - { - if (_settings.ParamMappings[variable] == paramName) - { - combo.Value = paramName; - row.Cells[1].Value = _paramValues[paramName]; - } - } - } - - row.Cells[2] = combo; - } - } - } - } - - private string[] GetParams() - { - //Find all SQL variables: - //'@', preceeded by '=', ',', or any white space character - //then, any "word" character - //Finally, '=', ',', or any white space, repeated 0 or more times - //(in the case of end-of-string, will be 0 times) - var r = new Regex(@"(?<=[=,\s\(])@\w{1,}(?=[=,\s\)]?)"); - - var output = new List(); - - foreach (Match m in r.Matches(_outerQuery)) - { - var lowerVal = m.Value.ToLower(); - if (!output.Contains(lowerVal)) - output.Add(m.Value.ToLower()); - } - - if (output.Count == 0) - MessageBox.Show(Resources.NoVarsWereIdentified); - - return output.ToArray(); - } - - private void okButton_Click(object sender, EventArgs e) - { - _settings.ParamQuery = paramQueryTextBox.Text; - - var localParamMappings = new Dictionary(); - foreach (DataGridViewRow row in columnMapGrid.Rows) - { - if ((string) row.Cells[2].Value != "") - localParamMappings.Add((string) row.Cells[0].Value, (string) row.Cells[2].Value); - } - - _settings.ParamMappings = localParamMappings; - - Dispose(); - } - } -} \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/ParamWindow.resx b/Solution/SQLQueryStress/src/SQLQueryStress/ParamWindow.resx deleted file mode 100644 index c3a0a497..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/ParamWindow.resx +++ /dev/null @@ -1,129 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - text/microsoft-resx - - - 2.0 - - - System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 - - - System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 - - - True - - - True - - - True - - \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/Program.cs b/Solution/SQLQueryStress/src/SQLQueryStress/Program.cs deleted file mode 100644 index 6740c613..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/Program.cs +++ /dev/null @@ -1,27 +0,0 @@ -#region - -using System; -using System.Windows.Forms; - -#endregion - -namespace SQLQueryStress -{ - internal static class Program - { - /// - /// The main entry point for the application. - /// - [STAThread] - private static void Main(string[] args) - { - Application.EnableVisualStyles(); - Application.SetCompatibleTextRenderingDefault(false); - - Form1 f = args.Length > 0 ? new Form1(args[0]) : new Form1(); - - f.StartPosition = FormStartPosition.CenterScreen; - Application.Run(f); - } - } -} \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/Properties/AssemblyInfo.cs b/Solution/SQLQueryStress/src/SQLQueryStress/Properties/AssemblyInfo.cs deleted file mode 100644 index b88b32a0..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,40 +0,0 @@ -#region - -using System.Reflection; -using System.Runtime.InteropServices; - -#endregion - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. - -[assembly: AssemblyTitle("SQLQueryStress")] -[assembly: AssemblyDescription("SQL Server Load Test Tool")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("amachanic@gmail.com")] -[assembly: AssemblyProduct("SQLQueryStress")] -[assembly: AssemblyCopyright("Copyright © 2006, 2007 Adam Machanic")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. - -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM - -[assembly: Guid("e4c26a22-8376-4ff3-aa7f-878ebd9f34b3")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// - -[assembly: AssemblyVersion("0.9.7.0")] -[assembly: AssemblyFileVersion("0.9.7.0")] \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/Properties/Resources.Designer.cs b/Solution/SQLQueryStress/src/SQLQueryStress/Properties/Resources.Designer.cs deleted file mode 100644 index 95e2102a..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/Properties/Resources.Designer.cs +++ /dev/null @@ -1,145 +0,0 @@ -//------------------------------------------------------------------------------ -// -// This code was generated by a tool. -// Runtime Version:4.0.30319.42000 -// -// Changes to this file may cause incorrect behavior and will be lost if -// the code is regenerated. -// -//------------------------------------------------------------------------------ - -namespace SQLQueryStress.Properties { - using System; - - - /// - /// A strongly-typed resource class, for looking up localized strings, etc. - /// - // This class was auto-generated by the StronglyTypedResourceBuilder - // class via a tool like ResGen or Visual Studio. - // To add or remove a member, edit your .ResX file then rerun ResGen - // with the /str option, or rebuild your VS project. - [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")] - [global::System.Diagnostics.DebuggerNonUserCodeAttribute()] - [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()] - internal class Resources { - - private static global::System.Resources.ResourceManager resourceMan; - - private static global::System.Globalization.CultureInfo resourceCulture; - - [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")] - internal Resources() { - } - - /// - /// Returns the cached ResourceManager instance used by this class. - /// - [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)] - internal static global::System.Resources.ResourceManager ResourceManager { - get { - if (object.ReferenceEquals(resourceMan, null)) { - global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("SQLQueryStress.Properties.Resources", typeof(Resources).Assembly); - resourceMan = temp; - } - return resourceMan; - } - } - - /// - /// Overrides the current thread's CurrentUICulture property for all - /// resource lookups using this strongly typed resource class. - /// - [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)] - internal static global::System.Globalization.CultureInfo Culture { - get { - return resourceCulture; - } - set { - resourceCulture = value; - } - } - - /// - /// Looks up a localized string similar to Connection Failed. - /// - internal static string ConnFail { - get { - return ResourceManager.GetString("ConnFail", resourceCulture); - } - } - - /// - /// Looks up a localized string similar to Connection Succeeded. - /// - internal static string ConnSucc { - get { - return ResourceManager.GetString("ConnSucc", resourceCulture); - } - } - - /// - /// Looks up a localized string similar to Error loading settings.. - /// - internal static string ErrLoadingSettings { - get { - return ResourceManager.GetString("ErrLoadingSettings", resourceCulture); - } - } - - /// - /// Looks up a localized string similar to Error saving settings.. - /// - internal static string ErrorSavingSettings { - get { - return ResourceManager.GetString("ErrorSavingSettings", resourceCulture); - } - } - - /// - /// Looks up a localized string similar to Exceptions. - /// - internal static string Exceptions { - get { - return ResourceManager.GetString("Exceptions", resourceCulture); - } - } - - /// - /// Looks up a localized string similar to You must set valid database connection information. Click the Database button to configure the settings.. - /// - internal static string MustSetValidDatabaseConn { - get { - return ResourceManager.GetString("MustSetValidDatabaseConn", resourceCulture); - } - } - - /// - /// Looks up a localized string similar to You must set valid database connection information. Click the Database button to configure the settings.. - /// - internal static string MustSetValidDbConnInfo { - get { - return ResourceManager.GetString("MustSetValidDbConnInfo", resourceCulture); - } - } - - /// - /// Looks up a localized string similar to No variables were identified in the main query. Variables must be used there before parameter substitution can be used.. - /// - internal static string NoVarsWereIdentified { - get { - return ResourceManager.GetString("NoVarsWereIdentified", resourceCulture); - } - } - - /// - /// Looks up a localized resource of type System.Drawing.Icon similar to (Icon). - /// - internal static System.Drawing.Icon QueryStressIcon { - get { - object obj = ResourceManager.GetObject("QueryStressIcon", resourceCulture); - return ((System.Drawing.Icon)(obj)); - } - } - } -} diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/Properties/Resources.resx b/Solution/SQLQueryStress/src/SQLQueryStress/Properties/Resources.resx deleted file mode 100644 index e5da1968..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/Properties/Resources.resx +++ /dev/null @@ -1,148 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - text/microsoft-resx - - - 2.0 - - - System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 - - - System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 - - - - ..\Resources\QueryStressIcon.ico;System.Drawing.Icon, System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a - - - You must set valid database connection information. Click the Database button to configure the settings. - - - Error loading settings. - - - Error saving settings. - - - Exceptions - - - You must set valid database connection information. Click the Database button to configure the settings. - - - No variables were identified in the main query. Variables must be used there before parameter substitution can be used. - - - Connection Succeeded - - - Connection Failed - - \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/Properties/Settings.Designer.cs b/Solution/SQLQueryStress/src/SQLQueryStress/Properties/Settings.Designer.cs deleted file mode 100644 index 4355cbf0..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/Properties/Settings.Designer.cs +++ /dev/null @@ -1,26 +0,0 @@ -//------------------------------------------------------------------------------ -// -// This code was generated by a tool. -// Runtime Version:4.0.30319.42000 -// -// Changes to this file may cause incorrect behavior and will be lost if -// the code is regenerated. -// -//------------------------------------------------------------------------------ - -namespace SQLQueryStress.Properties { - - - [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()] - [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "14.0.0.0")] - internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase { - - private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings()))); - - public static Settings Default { - get { - return defaultInstance; - } - } - } -} diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/Properties/Settings.settings b/Solution/SQLQueryStress/src/SQLQueryStress/Properties/Settings.settings deleted file mode 100644 index e04fc631..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/Properties/Settings.settings +++ /dev/null @@ -1,8 +0,0 @@ - - - - - - - - \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/Properties/app.manifest b/Solution/SQLQueryStress/src/SQLQueryStress/Properties/app.manifest deleted file mode 100644 index e58cc9e5..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/Properties/app.manifest +++ /dev/null @@ -1,20 +0,0 @@ - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/Resources/QueryStressIcon.ico b/Solution/SQLQueryStress/src/SQLQueryStress/Resources/QueryStressIcon.ico deleted file mode 100644 index e27f58b3..00000000 Binary files a/Solution/SQLQueryStress/src/SQLQueryStress/Resources/QueryStressIcon.ico and /dev/null differ diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/SQLQueryStress.csproj b/Solution/SQLQueryStress/src/SQLQueryStress/SQLQueryStress.csproj deleted file mode 100644 index 84b87475..00000000 --- a/Solution/SQLQueryStress/src/SQLQueryStress/SQLQueryStress.csproj +++ /dev/null @@ -1,193 +0,0 @@ - - - - Debug - AnyCPU - 8.0.50727 - 2.0 - {02A166A4-EE64-432F-AA6E-08C7984BD7BC} - WinExe - Properties - SQLQueryStress - SQLQueryStress - false - false - sqlQueryStress.snk - Internet - false - 2546E8A9F11989C71B0CFBEF57D992392F75EA37 - SQLQueryStress_TemporaryKey.pfx - false - Resources\QueryStressIcon.ico - v4.0 - - - - - 2.0 - c:\testdeploy\querystress\ - true - Disk - false - Background - 7 - Days - true - false - true - SQLQueryStress - Adam Machanic - 0 - 0.9.0.0 - false - true - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - false - true - MinimumRecommendedRules.ruleset - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - false - - - - - - - - - - - - Form - - - AboutBox.cs - - - - Form - - - DatabaseSelect.cs - - - Form - - - Form1.cs - - - Form - - - DataViewer.cs - - - - Form - - - Options.cs - - - Form - - - ParamWindow.cs - - - - - Designer - AboutBox.cs - - - Designer - DatabaseSelect.cs - - - Designer - Form1.cs - - - Designer - DataViewer.cs - - - Designer - Options.cs - - - Designer - ParamWindow.cs - - - ResXFileCodeGenerator - Resources.Designer.cs - Designer - - - True - Resources.resx - True - - - - - SettingsSingleFileGenerator - Settings.Designer.cs - - - - True - Settings.settings - True - - - - - False - .NET Framework 3.5 SP1 Client Profile - false - - - False - .NET Framework 2.0 - true - - - False - .NET Framework 3.5 SP1 - false - - - - - - - - \ No newline at end of file diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/SQLQueryStress_Documentation.doc b/Solution/SQLQueryStress/src/SQLQueryStress/SQLQueryStress_Documentation.doc deleted file mode 100644 index 6da499fe..00000000 Binary files a/Solution/SQLQueryStress/src/SQLQueryStress/SQLQueryStress_Documentation.doc and /dev/null differ diff --git a/Solution/SQLQueryStress/src/SQLQueryStress/sqlQueryStress.snk b/Solution/SQLQueryStress/src/SQLQueryStress/sqlQueryStress.snk deleted file mode 100644 index b114fbfe..00000000 Binary files a/Solution/SQLQueryStress/src/SQLQueryStress/sqlQueryStress.snk and /dev/null differ diff --git a/Stored_Procedure/dbo.sp_AllocationMetadata.sql b/Stored_Procedure/dbo.sp_AllocationMetadata.sql new file mode 100644 index 00000000..e25c287d --- /dev/null +++ b/Stored_Procedure/dbo.sp_AllocationMetadata.sql @@ -0,0 +1,103 @@ +/*============================================================================ + Source link: https://www.sqlskills.com/blogs/paul/inside-the-storage-engine-sp_allocationmetadata-putting-undocumented-system-catalog-views-to-work/ + + File: sp_AllocationMetadata.sql + + Summary: This script cracks the system tables to provide top-level + metadata about a table or index + + SQL Server Versions: 2005 onwards +------------------------------------------------------------------------------ + Written by Paul S. Randal, SQLskills.com + + (c) 2014, SQLskills.com. All rights reserved. + + For more scripts and sample code, check out + http://www.SQLskills.com + + You may alter this code for your own *non-commercial* purposes. You may + republish altered code as long as you include this copyright and give due + credit, but you must obtain prior permission before blogging this code. + + THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF + ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED + TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A + PARTICULAR PURPOSE. +============================================================================*/ + +USE [master]; +GO + +IF OBJECT_ID (N'dbo.sp_AllocationMetadata', 'P') IS NULL + EXECUTE('CREATE PROCEDURE sp_AllocationMetadata AS SELECT 1'); +GO + +ALTER PROCEDURE dbo.sp_AllocationMetadata +( + @object SYSNAME = NULL +) +AS +/* +USE [AdventureWorks]; +GO +EXEC [sp_AllocationMetadata] N'HumanResources.Employee'; +*/ + +DECLARE @TROW50000 NVARCHAR(1000) = N''; + +SET @TROW50000 = N'Table ' + @object + N' is not exists in database ' + QUOTENAME(DB_NAME()) + N'!!!'; +IF OBJECT_ID(@object) IS NULL THROW 50000, @TROW50000, 1; + +SELECT + OBJECT_NAME ([sp].[object_id]) AS [Object Name], + [sp].[index_id] AS [Index ID], + [sp].[partition_id] AS [Partition ID], + [sa].[allocation_unit_id] AS [Alloc Unit ID], + [sa].[type_desc] AS [Alloc Unit Type], + '(' + CONVERT (VARCHAR (6), + CONVERT (INT, + SUBSTRING ([sa].[first_page], 6, 1) + + SUBSTRING ([sa].[first_page], 5, 1))) + + ':' + CONVERT (VARCHAR (20), + CONVERT (INT, + SUBSTRING ([sa].[first_page], 4, 1) + + SUBSTRING ([sa].[first_page], 3, 1) + + SUBSTRING ([sa].[first_page], 2, 1) + + SUBSTRING ([sa].[first_page], 1, 1))) + + ')' AS [First Page], + '(' + CONVERT (VARCHAR (6), + CONVERT (INT, + SUBSTRING ([sa].[root_page], 6, 1) + + SUBSTRING ([sa].[root_page], 5, 1))) + + ':' + CONVERT (VARCHAR (20), + CONVERT (INT, + SUBSTRING ([sa].[root_page], 4, 1) + + SUBSTRING ([sa].[root_page], 3, 1) + + SUBSTRING ([sa].[root_page], 2, 1) + + SUBSTRING ([sa].[root_page], 1, 1))) + + ')' AS [Root Page], + '(' + CONVERT (VARCHAR (6), + CONVERT (INT, + SUBSTRING ([sa].[first_iam_page], 6, 1) + + SUBSTRING ([sa].[first_iam_page], 5, 1))) + + ':' + CONVERT (VARCHAR (20), + CONVERT (INT, + SUBSTRING ([sa].[first_iam_page], 4, 1) + + SUBSTRING ([sa].[first_iam_page], 3, 1) + + SUBSTRING ([sa].[first_iam_page], 2, 1) + + SUBSTRING ([sa].[first_iam_page], 1, 1))) + + ')' AS [First IAM Page] +FROM + sys.system_internals_allocation_units AS [sa], + sys.partitions AS [sp] +WHERE + [sa].[container_id] = [sp].[partition_id] +AND [sp].[object_id] = + (CASE WHEN (@object IS NULL) + THEN [sp].[object_id] + ELSE OBJECT_ID (@object) + END); +GO + +EXEC sys.sp_MS_marksystemobject [sp_AllocationMetadata]; +GO diff --git a/Stored_Procedure/dbo.sp_BenchmarkTSQL.sql b/Stored_Procedure/dbo.sp_BenchmarkTSQL.sql new file mode 100644 index 00000000..51868145 --- /dev/null +++ b/Stored_Procedure/dbo.sp_BenchmarkTSQL.sql @@ -0,0 +1,548 @@ +IF OBJECT_ID('dbo.sp_BenchmarkTSQL', 'P') IS NULL + EXECUTE ('CREATE PROCEDURE dbo.sp_BenchmarkTSQL AS SELECT 1;'); +GO + +　 +ALTER PROCEDURE dbo.sp_BenchmarkTSQL( + @tsqlStatementBefore NVARCHAR(MAX) = NULL + , @tsqlStatement NVARCHAR(MAX) + , @tsqlStatementAfter NVARCHAR(MAX) = NULL + , @numberOfExecution INT = 10 + , @saveResults BIT = 0 + , @skipTSQLCheck BIT = 1 + , @clearCache BIT = 0 + , @calcMedian BIT = 0 + , @printStepInfo BIT = 1 + , @durationAccuracy VARCHAR(5) = 'ss' + , @dateTimeFunction VARCHAR(16) = 'SYSDATETIME' + , @additionalInfo BIT = 0 +) +/* +.SYNOPSIS + Run TSQL statement @numberOfExecution times and calculate execution time, save results if needed or print it. + +.DESCRIPTION + Run SQL statement specified times, show results, insert execution details into table master.dbo.BenchmarkTSQL (create if not exist). + +.PARAMETER @tsqlStatementBefore + TSQL statement that executed before tested main TSQL statement. + +.PARAMETER @tsqlStatement + TSQL statement for benchmarking. + +.PARAMETER @tsqlStatementAfter + TSQL statement that executed after tested TSQL statement. + +.PARAMETER @numberOfExecution + Number of execution TSQL statement. + +.PARAMETER @saveResults + Save benchmark details to master.dbo.BenchmarkTSQL table if @saveResults = 1. Table will be created if not exists. + +.PARAMETER @skipTSQLCheck + Checking for valid TSQL statement. Default value 0 (false) - skip checking. + +.PARAMETER @clearCache + Clear cached plan for TSQL statement. Default value 0 (false) - not clear. + +.PARAMETER @calcMedian + Calculate pseudo median of execution time. Default value 0 (false) - not calculated. + +.PARAMETER @printStepInfo + PRINT detailed step information: step count, start time, end time, duration. + +.PARAMETER @durationAccuracy + Duration accuracy calculation, possible values: ns, mcs, ms, ss, mi, hh, dd, wk. + See DATEDIFF https://docs.microsoft.com/en-us/sql/t-sql/functions/datediff-transact-sql + +.PARAMETER @dateTimeFunction + Define using datetime function, possible values of functions: SYSDATETIME, SYSUTCDATETIME. + See https://docs.microsoft.com/en-us/sql/t-sql/functions/date-and-time-data-types-and-functions-transact-sql + +.EXAMPLE + EXEC sp_BenchmarkTSQL + @tsqlStatement = 'SELECT * FROM , sys.databases;' + , @skipTSQLCheck = 0; + -- RETURN: Incorrect syntax near ','. + +.EXAMPLE + EXEC sp_BenchmarkTSQL + @tsqlStatement = 'SELECT * FROM sys.databases;' + , @skipTSQLCheck = 0; + +.EXAMPLE + EXEC sp_BenchmarkTSQL + @tsqlStatement = 'SELECT TOP(100000) * FROM sys.objects AS o1 CROSS JOIN sys.objects AS o2 CROSS JOIN sys.objects AS o3;' + , @numberOfExecution = 10 + , @saveResults = 1 + , @calcMedian = 1 + , @clearCache = 1 + , @printStepInfo = 1 + , @durationAccuracy = 'ms'; + +.EXAMPLE + EXEC sp_BenchmarkTSQL + @tsqlStatementBefore = 'WAITFOR DELAY ''00:00:01'';' + , @tsqlStatement = 'BACKUP DATABASE [master] TO DISK = N''C:\master.bak'' WITH NOFORMAT, NOINIT;' + , @tsqlStatementAfter = 'WAITFOR DELAY ''00:00:02'';' + , @numberOfExecution = 5 + , @saveResults = 1 + , @calcMedian = 1 + , @clearCache = 1 + , @printStepInfo = 1 + , @durationAccuracy = 'ss' + , @dateTimeFunction = 'SYSUTCDATETIME'; + +.EXAMPLE + EXEC sp_BenchmarkTSQL + @tsqlStatement = 'SET NOCOUNT OFF; SELECT TOP(100000) * FROM sys.objects AS o1 CROSS JOIN sys.objects AS o2 CROSS JOIN sys.objects AS o3;' + , @numberOfExecution = 5 + , @saveResults = 1 + , @calcMedian = 1 + , @clearCache = 1 + , @printStepInfo = 1 + , @durationAccuracy = 'ss' + , @additionalInfo = 1; + +.EXAMPLE + DECLARE @tsql NVARCHAR(MAX) = N'SET NOCOUNT OFF; DECLARE @tsql NVARCHAR(MAX) = N''BACKUP DATABASE [master] TO DISK = N''''C:\master'' + + REPLACE(CAST(CAST(GETDATE() AS DATETIME2(7)) AS NVARCHAR(MAX)), '':'', '' '') + + ''.bak'''' WITH NOFORMAT, NOINIT;'' + EXECUTE sp_executesql @tsql;'; + EXEC sp_BenchmarkTSQL + @tsqlStatement = @tsql + , @numberOfExecution = 3 + , @saveResults = 1 + , @calcMedian = 1 + , @clearCache = 1 + , @printStepInfo = 1 + , @durationAccuracy = 'ms' + , @dateTimeFunction = 'SYSUTCDATETIME' + , @additionalInfo = 1; + +.LICENSE MIT +Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +.NOTE + Author: Aleksei Nagorskii + Created date: 2017-12-14 by Konstantin Taranov k@taranov.pro + Version: 4.9 + Last Modified: 2018-09-04 15:50 UTC+3 by Konstantin Taranov + Main contributors: Konstantin Taranov, Aleksei Nagorskii + Source: https://rebrand.ly/sp_BenchmarkTSQL +*/ +AS +BEGIN TRY + + SET NOCOUNT ON; + + DECLARE @originalLogin SYSNAME = QUOTENAME(ORIGINAL_LOGIN()); -- https://sqlstudies.com/2015/06/24/which-user-function-do-i-use/ + DECLARE @startTime DATETIME2(7) = CASE WHEN @dateTimeFunction = 'SYSDATETIME' THEN SYSDATETIME() + WHEN @dateTimeFunction = 'SYSUTCDATETIME' THEN SYSUTCDATETIME() + END; + DECLARE @err_msg NVARCHAR(MAX); + DECLARE @RaiseError NVARCHAR(2000); + + -- Using RAISEEROR for interactive step printing http://sqlity.net/en/984/print-vs-raiserror/ + SET @RaiseError = 'Benchmark started at ' + CONVERT(VARCHAR(27), @startTime, 121) + ' by ' + @originalLogin; + RAISERROR(@RaiseError, 0, 1) WITH NOWAIT; + + DECLARE @productMajorVersion SQL_VARIANT = SERVERPROPERTY('ProductMajorVersion'); + IF CAST(@productMajorVersion AS INT) < 10 + BEGIN + DECLARE @MsgError VARCHAR(2000) = 'Stored procedure sp_BenchmarkTSQL works only for SQL Server 2008 and higher. Yor ProductMajorVersion is ' + + CAST(@productMajorVersion AS VARCHAR(30)) + + '. You can try to replace DATETIME2 data type on DATETIME, perhaps it will be enough.'; + THROW 55001, @MsgError, 1; + END; + + IF @tsqlStatement IS NULL + THROW 55002, '@tsqlStatement is NULL, please specify TSQL statement.', 1; + IF @tsqlStatement = N'' + THROW 55003, '@tsqlStatement is empty, please specify TSQL statement.', 1; + + IF @durationAccuracy NOT IN ( + 'ns' -- nanosecond + , 'mcs' -- microsecond + , 'ms' -- millisecond + , 'ss' -- second + , 'mi' -- minute + , 'hh' -- hour + , 'dd' -- day + , 'wk' -- week + ) + THROW 55004, '@durationAccuracy accept only this values: ns, mcs, ms, ss, mi, hh, wk, dd. See DATEDIFF https://docs.microsoft.com/en-us/sql/t-sql/functions/datediff-transact-sql' , 1; + + IF @dateTimeFunction NOT IN ( + 'SYSDATETIME' + , 'SYSUTCDATETIME' + ) + THROW 55005, '@dateTimeFunction accept only SYSUTCDATETIME and SYSDATETIME, default is SYSDATETIME. See https://docs.microsoft.com/en-us/sql/t-sql/functions/date-and-time-data-types-and-functions-transact-sql', 1; + + IF @numberOfExecution <= 0 OR @numberOfExecution >= 32000 + THROW 55006, '@numberOfExecution must be > 0 and < 32000', 1; + + IF @skipTSQLCheck = 0 + BEGIN + IF @tsqlStatementBefore IS NOT NULL AND @tsqlStatementBefore <> '' AND EXISTS ( + SELECT 1 + FROM sys.dm_exec_describe_first_result_set(@tsqlStatementBefore, NULL, 0) + WHERE error_message IS NOT NULL + AND error_number IS NOT NULL + AND error_severity IS NOT NULL + AND error_state IS NOT NULL + AND error_type IS NOT NULL + AND error_type_desc IS NOT NULL + ) + BEGIN + SELECT @err_msg = [error_message] + FROM sys.dm_exec_describe_first_result_set(@tsqlStatementBefore, NULL, 0) + WHERE column_ordinal = 0; + + THROW 55007, @err_msg, 1; + END; + + IF @tsqlStatement IS NOT NULL AND @tsqlStatement <> '' AND EXISTS ( + SELECT 1 + FROM sys.dm_exec_describe_first_result_set(@tsqlStatement, NULL, 0) + WHERE error_message IS NOT NULL + AND error_number IS NOT NULL + AND error_severity IS NOT NULL + AND error_state IS NOT NULL + AND error_type IS NOT NULL + AND error_type_desc IS NOT NULL + ) + BEGIN + SELECT @err_msg = [error_message] + FROM sys.dm_exec_describe_first_result_set(@tsqlStatement, NULL, 0) + WHERE column_ordinal = 0; + + THROW 55008, @err_msg, 1; + END; + + IF @tsqlStatementAfter IS NOT NULL AND @tsqlStatementAfter <> '' AND EXISTS ( + SELECT 1 + FROM sys.dm_exec_describe_first_result_set(@tsqlStatementAfter, NULL, 0) + WHERE error_message IS NOT NULL + AND error_number IS NOT NULL + AND error_severity IS NOT NULL + AND error_state IS NOT NULL + AND error_type IS NOT NULL + AND error_type_desc IS NOT NULL + ) + BEGIN + SELECT @err_msg = [error_message] + FROM sys.dm_exec_describe_first_result_set(@tsqlStatementAfter, NULL, 0) + WHERE column_ordinal = 0; + + THROW 55009, @err_msg, 1; + END; + END; + + DECLARE @crlf NVARCHAR(10) = CHAR(10); + DECLARE @stepNumnber INT = 0; + DECLARE @min BIGINT; + DECLARE @avg BIGINT; + DECLARE @max BIGINT; + DECLARE @median REAL; + DECLARE @plan_handle VARBINARY(64); + DECLARE @runTimeStamp DATETIME2(7); + DECLARE @finishTime DATETIME2(7); + DECLARE @duration INT; + DECLARE @additionalXML XML; + + DECLARE @BenchmarkTSQL TABLE ( + StartBenchmarkTime DATETIME2(7) NOT NULL + , FinishBenchmarkTime DATETIME2(7) NULL + , RunTimeStamp DATETIME2(7) NOT NULL + , FinishTimeStamp DATETIME2(7) NOT NULL + , Duration BIGINT NOT NULL + , ClearCache BIT NOT NULL + , PrintStepInfo BIT NOT NULL + , DurationAccuracy VARCHAR(10) NOT NULL + , AdditionalInfo XML NULL + ); + + IF @additionalInfo = 1 + SET @tsqlStatement = @tsqlStatement + @crlf + N' + SET @additionalXMLOUT = ( + SELECT * + FROM ( + SELECT ''DISABLE_DEF_CNST_CHK'' AS "Option", CASE @@options & 1 WHEN 0 THEN 0 ELSE 1 END AS "Enabled" UNION ALL + SELECT ''IMPLICIT_TRANSACTIONS'' , CASE @@options & 2 WHEN 0 THEN 0 ELSE 1 END UNION ALL + SELECT ''CURSOR_CLOSE_ON_COMMIT'' , CASE @@options & 4 WHEN 0 THEN 0 ELSE 1 END UNION ALL + SELECT ''ANSI_WARNINGS'' , CASE @@options & 8 WHEN 0 THEN 0 ELSE 1 END UNION ALL + SELECT ''ANSI_PADDING'' , CASE @@options & 16 WHEN 0 THEN 0 ELSE 1 END UNION ALL + SELECT ''ANSI_NULLS'' , CASE @@options & 32 WHEN 0 THEN 0 ELSE 1 END UNION ALL + SELECT ''ARITHABORT'' , CASE @@options & 64 WHEN 0 THEN 0 ELSE 1 END UNION ALL + SELECT ''ARITHIGNORE'' , CASE @@options & 128 WHEN 0 THEN 0 ELSE 1 END UNION ALL + SELECT ''QUOTED_IDENTIFIER'' , CASE @@options & 256 WHEN 0 THEN 0 ELSE 1 END UNION ALL + SELECT ''NOCOUNT'' , CASE @@options & 512 WHEN 0 THEN 0 ELSE 1 END UNION ALL + SELECT ''ANSI_NULL_DFLT_ON'' , CASE @@options & 1024 WHEN 0 THEN 0 ELSE 1 END UNION ALL + SELECT ''ANSI_NULL_DFLT_OFF'' , CASE @@options & 2048 WHEN 0 THEN 0 ELSE 1 END UNION ALL + SELECT ''CONCAT_NULL_YIELDS_NULL'' , CASE @@options & 4096 WHEN 0 THEN 0 ELSE 1 END UNION ALL + SELECT ''NUMERIC_ROUNDABORT'' , CASE @@options & 8192 WHEN 0 THEN 0 ELSE 1 END UNION ALL + SELECT ''XACT_ABORT'' , CASE @@options & 16384 WHEN 0 THEN 0 ELSE 1 END + ) AS s + FOR XML RAW + );'; + + WHILE @stepNumnber < @numberOfExecution + BEGIN + SET @stepNumnber = @stepNumnber + 1; + + IF @clearCache = 1 + BEGIN + SELECT @plan_handle = plan_handle + FROM sys.dm_exec_cached_plans + CROSS APPLY sys.dm_exec_sql_text(plan_handle) + WHERE [text] LIKE @tsqlStatement; -- LIKE instead = (equal) because = ignore trailing spaces + + IF @plan_handle IS NOT NULL DBCC FREEPROCCACHE (@plan_handle); + END; + + IF @tsqlStatementBefore IS NOT NULL AND @tsqlStatementBefore <> '' + EXECUTE sp_executesql @tsqlStatementBefore; + + SET @runTimeStamp = CASE WHEN @dateTimeFunction = 'SYSDATETIME' THEN SYSDATETIME() + WHEN @dateTimeFunction = 'SYSUTCDATETIME' THEN SYSUTCDATETIME() + END; + + IF @additionalInfo = 1 + EXEC sp_executesql @tsqlStatement, N'@additionalXMLOUT XML OUTPUT', @additionalXMLOUT = @additionalXML OUTPUT SELECT @additionalXML; + + IF @additionalInfo = 0 + EXEC sp_executesql @tsqlStatement; + + SET @finishTime = CASE WHEN @dateTimeFunction = 'SYSDATETIME' THEN SYSDATETIME() + WHEN @dateTimeFunction = 'SYSUTCDATETIME' THEN SYSUTCDATETIME() + END; + + SET @duration = CASE WHEN @durationAccuracy = 'ns' THEN DATEDIFF(ns, @runTimeStamp, @finishTime) + WHEN @durationAccuracy = 'mcs' THEN DATEDIFF(mcs, @runTimeStamp, @finishTime) + WHEN @durationAccuracy = 'ms' THEN DATEDIFF(ms, @runTimeStamp, @finishTime) + WHEN @durationAccuracy = 'ss' THEN DATEDIFF(ss, @runTimeStamp, @finishTime) + WHEN @durationAccuracy = 'mi' THEN DATEDIFF(mi, @runTimeStamp, @finishTime) + WHEN @durationAccuracy = 'hh' THEN DATEDIFF(hh, @runTimeStamp, @finishTime) + WHEN @durationAccuracy = 'dd' THEN DATEDIFF(dd, @runTimeStamp, @finishTime) + WHEN @durationAccuracy = 'wk' THEN DATEDIFF(wk, @runTimeStamp, @finishTime) + ELSE 0 + END; + + INSERT @BenchmarkTSQL ( + StartBenchmarkTime + , FinishBenchmarkTime + , RunTimeStamp + , FinishTimeStamp + , Duration + , ClearCache + , PrintStepInfo + , DurationAccuracy + , AdditionalInfo + ) + VALUES ( + @startTime + , NULL + , @runTimeStamp + , @finishTime + , @duration + , @clearCache + , @printStepInfo + , @durationAccuracy + , @additionalXML + ); + + IF @printStepInfo = 1 + -- Using RAISEEROR for interactive step printing http://sqlity.net/en/984/print-vs-raiserror/ + SET @RaiseError = 'Run ' + CASE WHEN @stepNumnber < 10 THEN ' ' + CAST(@stepNumnber AS VARCHAR(30)) + WHEN @stepNumnber < 100 THEN ' ' + CAST(@stepNumnber AS VARCHAR(30)) + WHEN @stepNumnber < 1000 THEN ' ' + CAST(@stepNumnber AS VARCHAR(30)) + ELSE CAST(@stepNumnber AS VARCHAR(30)) + END + + ', start: ' + CONVERT(VARCHAR(27), @runTimeStamp, 121) + + ', finish: ' + CONVERT(VARCHAR(27), CASE WHEN @dateTimeFunction = 'SYSDATETIME' THEN SYSDATETIME() + WHEN @dateTimeFunction = 'SYSUTCDATETIME' THEN SYSUTCDATETIME() + END, 121) + + ', duration: ' + CAST(@duration AS VARCHAR(100)) + @durationAccuracy + '.'; + RAISERROR(@RaiseError, 0, 1) WITH NOWAIT; + + IF @tsqlStatementAfter IS NOT NULL AND @tsqlStatementAfter <> '' + EXECUTE sp_executesql @tsqlStatementAfter; + + END; + + SELECT @min = MIN(Duration) + , @avg = AVG(Duration) + , @max = MAX(Duration) + FROM @BenchmarkTSQL; + + DECLARE @FinishBenchmarkTime DATETIME2(7) = CASE WHEN @dateTimeFunction = 'SYSDATETIME' THEN SYSDATETIME() + WHEN @dateTimeFunction = 'SYSUTCDATETIME' THEN SYSUTCDATETIME() ELSE SYSDATETIME() + END; + + IF @saveResults = 1 + BEGIN + DECLARE @TSQLStatementGUID VARCHAR(36) = NEWID(); + + IF OBJECT_ID('master.dbo.BenchmarkTSQL', 'U') IS NULL + BEGIN + CREATE TABLE master.dbo.BenchmarkTSQL( + BenchmarkTSQLID INT IDENTITY NOT NULL + , TSQLStatementGUID VARCHAR(36) NOT NULL + , StepRowNumber INT NOT NULL + , StartBenchmarkTime DATETIME2(7) NOT NULL + , FinishBenchmarkTime DATETIME2(7) NOT NULL + , RunTimeStamp DATETIME2(7) NOT NULL + , FinishTimeStamp DATETIME2(7) NOT NULL + , Duration BIGINT NOT NULL + , TsqlStatementBefore NVARCHAR(MAX) NULL + , TsqlStatement NVARCHAR(MAX) NOT NULL + , TsqlStatementAfter NVARCHAR(MAX) NULL + , ClearCache BIT NOT NULL + , PrintStepInfo BIT NOT NULL + , DurationAccuracy VARCHAR(10) NOT NULL + , OriginalLogin SYSNAME NOT NULL + , AdditionalInfo XML NULL + ); + + INSERT INTO master.dbo.BenchmarkTSQL( + TSQLStatementGUID + , StepRowNumber + , StartBenchmarkTime + , FinishBenchmarkTime + , RunTimeStamp + , FinishTimeStamp + , Duration + , TsqlStatementBefore + , TsqlStatement + , TsqlStatementAfter + , ClearCache + , PrintStepInfo + , DurationAccuracy + , OriginalLogin + , AdditionalInfo + ) + SELECT @TSQLStatementGUID AS TSQLStatementGUID + , ROW_NUMBER() OVER (ORDER BY RunTimeStamp, FinishTimeStamp) AS StepRowNumber + , StartBenchmarkTime + , @FinishBenchmarkTime + , RunTimeStamp + , FinishTimeStamp + , Duration + , @tsqlStatementBefore + , @tsqlStatement + , @tsqlStatementAfter + , ClearCache + , PrintStepInfo + , DurationAccuracy + , @originalLogin AS OriginalLogin + , @additionalXML AS AdditionalInfo + FROM @BenchmarkTSQL; + END + ELSE + INSERT INTO master.dbo.BenchmarkTSQL + SELECT @TSQLStatementGUID AS TSQLStatementGUID + , ROW_NUMBER() OVER (ORDER BY RunTimeStamp, FinishTimeStamp) AS StepRowNumber + , StartBenchmarkTime + , @FinishBenchmarkTime + , RunTimeStamp + , FinishTimeStamp + , Duration + , @tsqlStatementBefore + , @tsqlStatement + , @tsqlStatementAfter + , ClearCache + , PrintStepInfo + , DurationAccuracy + , @originalLogin AS OriginalLogin + , @additionalXML AS AdditionalInfo + FROM @BenchmarkTSQL; + END; + + IF @calcMedian = 1 + BEGIN + SELECT @median = + ( + (SELECT MAX(TMIN) FROM + (SELECT TOP(50) PERCENT + CASE WHEN @durationAccuracy = 'ns' THEN DATEDIFF(ns, RunTimeStamp, FinishTimeStamp) + WHEN @durationAccuracy = 'mcs' THEN DATEDIFF(mcs, RunTimeStamp, FinishTimeStamp) + WHEN @durationAccuracy = 'ms' THEN DATEDIFF(ms, RunTimeStamp, FinishTimeStamp) + WHEN @durationAccuracy = 'ss' THEN DATEDIFF(ss, RunTimeStamp, FinishTimeStamp) + WHEN @durationAccuracy = 'mi' THEN DATEDIFF(mi, RunTimeStamp, FinishTimeStamp) + WHEN @durationAccuracy = 'hh' THEN DATEDIFF(hh, RunTimeStamp, FinishTimeStamp) + WHEN @durationAccuracy = 'dd' THEN DATEDIFF(dd, RunTimeStamp, FinishTimeStamp) + WHEN @durationAccuracy = 'wk' THEN DATEDIFF(wk, RunTimeStamp, FinishTimeStamp) + ELSE 0 + END AS TMIN + FROM @BenchmarkTSQL + ORDER BY TMIN + ) AS BottomHalf + ) + + + (SELECT MIN(TMAX) FROM + (SELECT TOP 50 PERCENT + CASE WHEN @durationAccuracy = 'ns' THEN DATEDIFF(ns, RunTimeStamp, FinishTimeStamp) + WHEN @durationAccuracy = 'mcs' THEN DATEDIFF(mcs, RunTimeStamp, FinishTimeStamp) + WHEN @durationAccuracy = 'ms' THEN DATEDIFF(ms, RunTimeStamp, FinishTimeStamp) + WHEN @durationAccuracy = 'ss' THEN DATEDIFF(ss, RunTimeStamp, FinishTimeStamp) + WHEN @durationAccuracy = 'mi' THEN DATEDIFF(mi, RunTimeStamp, FinishTimeStamp) + WHEN @durationAccuracy = 'hh' THEN DATEDIFF(hh, RunTimeStamp, FinishTimeStamp) + WHEN @durationAccuracy = 'dd' THEN DATEDIFF(dd, RunTimeStamp, FinishTimeStamp) + WHEN @durationAccuracy = 'wk' THEN DATEDIFF(wk, RunTimeStamp, FinishTimeStamp) + ELSE 0 + END AS TMAX + FROM @BenchmarkTSQL + ORDER BY TMAX DESC + ) AS TopHalf + ) + ) / 2.0; + END; + + DECLARE @endTime DATETIME2(7) = CASE WHEN @dateTimeFunction = 'SYSDATETIME' THEN SYSDATETIME() + WHEN @dateTimeFunction = 'SYSUTCDATETIME' THEN SYSUTCDATETIME() + END; + -- Using RAISEEROR for interactive step printing http://sqlity.net/en/984/print-vs-raiserror/ + SET @RaiseError = @crlf + + 'Min: ' + CAST(@min AS VARCHAR(30)) + @durationAccuracy + + ', Max: ' + CAST(@max AS VARCHAR(30)) + @durationAccuracy + + ', Average: ' + CAST(@avg AS VARCHAR(30)) + @durationAccuracy + + CASE WHEN @calcMedian = 1 THEN ', Median: ' + CAST(@median AS VARCHAR(30)) + @durationAccuracy ELSE '' END + + @crlf + + 'Benchmark finished at ' + CONVERT(VARCHAR(23), @endTime, 121) + + ' by ' + @originalLogin; + RAISERROR(@RaiseError, 0, 1) WITH NOWAIT; + + DECLARE @BenchmarkDuration BIGINT = CASE WHEN @durationAccuracy = 'ns' THEN DATEDIFF(ns, @startTime, @FinishBenchmarkTime) + WHEN @durationAccuracy = 'mcs' THEN DATEDIFF(mcs, @startTime, @FinishBenchmarkTime) + WHEN @durationAccuracy = 'ms' THEN DATEDIFF(ms, @startTime, @FinishBenchmarkTime) + WHEN @durationAccuracy = 'ss' THEN DATEDIFF(ss, @startTime, @FinishBenchmarkTime) + WHEN @durationAccuracy = 'mi' THEN DATEDIFF(mi, @startTime, @FinishBenchmarkTime) + WHEN @durationAccuracy = 'hh' THEN DATEDIFF(hh, @startTime, @FinishBenchmarkTime) + WHEN @durationAccuracy = 'dd' THEN DATEDIFF(dd, @startTime, @FinishBenchmarkTime) + WHEN @durationAccuracy = 'wk' THEN DATEDIFF(wk, @startTime, @FinishBenchmarkTime) + ELSE 0 + END; + + -- Using RAISEEROR for interactive step printing http://sqlity.net/en/984/print-vs-raiserror/ + SET @RaiseError = @crlf + 'Duration of benchmark: ' + CAST(@BenchmarkDuration AS VARCHAR(30)) + @durationAccuracy + '.'; + RAISERROR(@RaiseError, 0, 1) WITH NOWAIT; + +END TRY + +BEGIN CATCH + PRINT 'Error: ' + CONVERT(varchar(50), ERROR_NUMBER()) + + ', Severity: ' + CONVERT(varchar(5), ERROR_SEVERITY()) + + ', State: ' + CONVERT(varchar(5), ERROR_STATE()) + + ', Procedure: ' + ISNULL(ERROR_PROCEDURE(), '-') + + ', Line: ' + CONVERT(varchar(5), ERROR_LINE()) + + ', User name: ' + CONVERT(sysname, ORIGINAL_LOGIN()); + PRINT(ERROR_MESSAGE()); + + IF ERROR_NUMBER() = 535 + PRINT('Your @durationAccuracy = ' + @durationAccuracy + '. Try to use @durationAccuracy with a less precise datepart - seconds (ss) or minutes (mm) or days (dd).' + @crlf + + 'But in log table master.dbo.BenchmarkTSQL all times saving with DATETIME2(7) precise! You can manualy calculate difference after decreasing precise datepart.') +END CATCH; +GO diff --git a/Stored_Procedure/dbo.sp_BlitzInMemoryOLTP.sql b/Stored_Procedure/dbo.sp_BlitzInMemoryOLTP.sql new file mode 100644 index 00000000..9771fac6 --- /dev/null +++ b/Stored_Procedure/dbo.sp_BlitzInMemoryOLTP.sql @@ -0,0 +1,2046 @@ +DECLARE @msg NVARCHAR(MAX) = N''; + + -- Must be a compatible, on-prem version of SQL (2014+) +IF ( (SELECT SERVERPROPERTY ('EDITION')) <> 'SQL Azure' + AND (SELECT PARSENAME(CONVERT(NVARCHAR(128), SERVERPROPERTY ('PRODUCTVERSION')), 4)) < 12 + ) + -- or Azure Database (not Azure Data Warehouse), running at database compat level 120+ +OR ( (SELECT SERVERPROPERTY ('EDITION')) = 'SQL Azure' + AND (SELECT SERVERPROPERTY ('ENGINEEDITION')) = 5 + AND (SELECT [compatibility_level] FROM sys.databases WHERE [name] = DB_NAME()) < 120 + ) +BEGIN + SELECT @msg = N'Sorry, sp_BlitzInMemoryOLTP doesn''t work on versions of SQL prior to 2014.' + REPLICATE(CHAR(13), 7933); + PRINT @msg; + RETURN; +END; + + +IF OBJECT_ID('dbo.sp_BlitzInMemoryOLTP', 'P') IS NULL +EXECUTE ('CREATE PROCEDURE dbo.sp_BlitzInMemoryOLTP AS SELECT 1;'); +GO + +ALTER PROCEDURE dbo.sp_BlitzInMemoryOLTP( + @instanceLevelOnly BIT = 0 + , @dbName NVARCHAR(4000) = N'ALL' + , @tableName NVARCHAR(4000) = NULL + , @debug BIT = 0 + , @VersionDate DATETIME = NULL OUTPUT +) +/* +.SYNOPSIS + Get detailed information about In-Memory SQL Server objects + +.DESCRIPTION + Get detailed information about In-Memory SQL Server objects + Tested on SQL Server: 2014, 2016, 2017 + tested on Azure SQL Database + NOT tested on Azure Managed Instances + +.PARAMETER @instanceLevelOnly + Only check instance In-Memory related information + +.PARAMETER @dbName + Check database In-Memory objects for specified database + +.PARAMETER @tableName + Check database In-Memory objects for specified tablename + +.PARAMETER @debug + Only PRINT dynamic sql statements without executing it + +.EXAMPLE + EXEC sp_BlitzInMemoryOLTP; + -- Get all In-memory information + +.EXAMPLE + EXEC sp_BlitzInMemoryOLTP @dbName = N'ಠ ಠ'; + -- Get In-memory information for database with name ಠ ಠ + +.EXAMPLE + EXEC sp_BlitzInMemoryOLTP @instanceLevelOnly = 1; + -- Get only instance In-Memory information + +.EXAMPLE + EXEC sp_BlitzInMemoryOLTP @debug = 1; + -- PRINT dynamic sql statements without executing it + +.LICENSE MIT +Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +.NOTE + Author: Ned Otter + Version: 2.0 + Original link: http://nedotter.com/archive/2017/10/in-memory-oltp-diagnostic-script/ + Release Link: https://github.com/ktaranov/sqlserver-kit/blob/master/Stored_Procedure/sp_BlitzInMemoryOLTP.sql + Main Contributors: Ned Otter, Konstantin Taranov, Aleksey Nagorskiy + +*/ +AS +DECLARE @ScriptVersion VARCHAR(30); +SET @ScriptVersion = '1.8'; +SET @VersionDate = '20180801'; + +BEGIN TRY + + SET NOCOUNT ON; + + DECLARE @RunningOnAzureSQLDB BIT = 0; + + DECLARE @crlf VARCHAR(10) = CHAR(10); + + DECLARE @Edition NVARCHAR(MAX) = CAST(SERVERPROPERTY('Edition') AS NVARCHAR(128)) + , @errorMessage NVARCHAR(512); + + DECLARE @Version INT = CONVERT(INT, SERVERPROPERTY('ProductMajorVersion')); + + IF @debug = 1 PRINT('--@Version = ' + CAST(@Version AS VARCHAR(30))); + + /* + ################################################### + if we get here, we are running at least SQL 2014, but that version + only runs In-Memory if we are using Enterprise Edition + + NOTE: Azure SQL database changes this equation + ################################################### + */ + + /* + SERVERPROPERTY('EngineEdition') + 1 = Personal or Desktop Engine (Not available in SQL Server 2005 and later versions.) + ,2 = Standard (This is returned for Standard, Web, and Business Intelligence.) + ,3 = Enterprise (This is returned for Evaluation, Developer, and both Enterprise editions.) + ,4 = Express (This is returned for Express, Express with Tools and Express with Advanced Services) + ,5 = SQL Database + ,6 = SQL Data Warehouse + ,8 = Managed Instance + */ + + SELECT @RunningOnAzureSQLDB = + CASE + WHEN SERVERPROPERTY('EngineEdition') IN (5, 6, 8) THEN 1 + ELSE 0 + END; + + -- Database level: we are running SQL Database or SQL Data Warehouse, but this specific database does not support XTP + IF (@RunningOnAzureSQLDB = 1 AND DatabasePropertyEx(DB_NAME(), 'IsXTPSupported') = 0) + BEGIN + SET @errorMessage = 'For Azure SQL Database, In-Memory OLTP is only suppported on the Premium tier'; + THROW 55001, @errorMessage, 1; + END; + + -- not on Azure, so we need to check versions/Editions + -- SQL 2014 only supports XTP on Enterprise edition + IF (SERVERPROPERTY('EngineEdition') IN (2, 4)) AND @Version = 12 AND (@Edition NOT LIKE 'Enterprise%' AND @Edition NOT LIKE 'Developer%') + BEGIN + SET @errorMessage = CONCAT('For SQL 2014, In-Memory OLTP is only suppported on Enterprise Edition. You are running SQL Server edition: ', @Edition); + THROW 55002, @errorMessage, 1; + END; + + -- We're not running on Azure, so we need to check versions/Editions + -- SQL 2016 non-Enterprise only supports XTP after SP1 + DECLARE @BuildString VARCHAR(4) = CONVERT(VARCHAR(4), SERVERPROPERTY('ProductBuild')); + + IF (SERVERPROPERTY('EngineEdition') IN (2, 4)) AND @Version = 13 AND (@BuildString < 4001) + -- 13.0.4001.0 is the minimum build for XTP support + BEGIN + SET @errorMessage = 'For SQL 2016, In-Memory OLTP is only suppported on non-Enterprise Edition as of SP1'; + THROW 55003, @errorMessage, 1; + END; + + /* + ###################################################################################################################### + DATABASE LEVEL + ###################################################################################################################### + */ + + DECLARE @resultsDatabaseLayout TABLE + ( + [object] NVARCHAR(MAX) + ,databaseName NVARCHAR(MAX) + ,fileGroupName NVARCHAR(MAX) + ,fileName NVARCHAR(MAX) + ,[containerName/fileType] NVARCHAR(MAX) + ,Name NVARCHAR(MAX) + ,IsContainer NVARCHAR(MAX) + ,fileGroupDescription NVARCHAR(MAX) + ,fileGroupState NVARCHAR(MAX) + ,sizeKB NVARCHAR(MAX) + ,sizeMB NVARCHAR(MAX) + ,sizeGB NVARCHAR(MAX) + ,totalSizeMB NVARCHAR(MAX) + ); + + DECLARE @resultsNativeModuleCount TABLE + ( + [object] NVARCHAR(MAX) + ,databaseName NVARCHAR(MAX) + ,[Number of modules] INT + ); + + DECLARE @resultsInMemTables TABLE + ( + [object] NVARCHAR(MAX) + ,databaseName NVARCHAR(MAX) + ,tableName NVARCHAR(MAX) + ,[rowCount] INT + ,durability_desc NVARCHAR(MAX) + ,temporal_type_desc NVARCHAR(MAX) + ,memoryAllocatedForTableKB NVARCHAR(MAX) + ,memoryUsedByTableKB NVARCHAR(MAX) + ,memoryAllocatedForIndexesKB NVARCHAR(MAX) + ,memoryUsedByIndexesKB NVARCHAR(MAX) + ); + + DECLARE @resultsIndexes TABLE + ( + [object] NVARCHAR(MAX) + ,databaseName NVARCHAR(MAX) + ,tableName NVARCHAR(MAX) + ,indexName NVARCHAR(MAX) + ,memory_consumer_id INT + ,consumerType NVARCHAR(MAX) + ,description NVARCHAR(MAX) + ,allocations INT + ,allocatedBytesMB NVARCHAR(MAX) + ,usedBytesMB NVARCHAR(MAX) + ); + + DECLARE @resultsHashBuckets TABLE + ( + [object] NVARCHAR(MAX) + ,databaseName NVARCHAR(MAX) + ,[Schema] NVARCHAR(MAX) + ,TableName NVARCHAR(MAX) + ,indexName NVARCHAR(MAX) + ,totalBucketCount BIGINT + ,emptyBucketCount BIGINT + ,emptyBucketPercent INT + ,avg_ChainLength INT + ,max_ChainLength BIGINT + ,[Free buckets status] NVARCHAR(MAX) + ,[avg_chain_length status] BIGINT + ); + + DECLARE @resultsIndexCount TABLE + ( + [object] NVARCHAR(MAX) + ,databaseName NVARCHAR(MAX) + ,tableName NVARCHAR(MAX) + ,indexCount INT + ); + + DECLARE @resultsNativeModules TABLE + ( + [object] NVARCHAR(MAX) + ,Name NVARCHAR(MAX) + ,databaseName NVARCHAR(MAX) + ,[type] NVARCHAR(MAX) + ,[definition] NVARCHAR(MAX) + ); + + DECLARE @resultsNativeLoaded TABLE + ( + [object] NVARCHAR(MAX) + ,databaseName NVARCHAR(MAX) + ,moduleName NVARCHAR(MAX) + ,object_id INT + ); + + DECLARE @resultsTemporal TABLE + ( + [object] NVARCHAR(256) + ,databaseName NVARCHAR(MAX) + ,temporalTableSchema NVARCHAR(MAX) + ,temporalTableName NVARCHAR(MAX) + ,internalHistoryTableName NVARCHAR(MAX) + ,allocatedBytesForInternalHistoryTable BIGINT + ,usedBytesForInternalHistoryTable BIGINT + ); + + DECLARE @resultsMemoryConsumerForLOBs TABLE + ( + [object] NVARCHAR(MAX) + ,databaseName NVARCHAR(MAX) + ,tableName NVARCHAR(MAX) + ,columnName NVARCHAR(MAX) + ,typeDescription NVARCHAR(MAX) + ,memoryConsumerTypeDescription NVARCHAR(MAX) + ,memoryConsumerDescription NVARCHAR(MAX) + ,allocatedBytes INT + ,usedBytes INT + ); + + DECLARE @resultsTableTypes TABLE + ( + [object] NVARCHAR(MAX) + ,databaseName NVARCHAR(MAX) + ,[Schema] NVARCHAR(MAX) + ,[Name] NVARCHAR(MAX) + ); + + DECLARE @resultsNativeModuleStats TABLE + ( + [object] NVARCHAR(MAX) + ,databaseName NVARCHAR(MAX) + ,object_id INT + ,object_name NVARCHAR(MAX) + ,cached_time DATETIME + ,last_execution_time DATETIME + ,execution_count INT + ,total_worker_time INT + ,last_worker_time INT + ,min_worker_time INT + ,max_worker_time INT + ,total_elapsed_time INT + ,last_elapsed_time INT + ,min_elapsed_time INT + ,max_elapsed_time INT + + ); + + DECLARE @resultsxtp_storage_percent TABLE + ( + databaseName NVARCHAR(MAX) + ,end_time DATETIME + ,xtp_storage_percent DECIMAL(5, 2) + + ); + + CREATE TABLE #resultsContainerDetails + ( + [object] NVARCHAR(256) + ,databaseName NVARCHAR(256) + ,containerName NVARCHAR(256) + ,container_id BIGINT + ,sizeMB NVARCHAR(256) + ,fileCount INT + ); + + CREATE TABLE #resultsContainerFileDetails + ( + [object] NVARCHAR(256) + ,databaseName NVARCHAR(256) + ,containerName NVARCHAR(256) + ,container_id BIGINT + ,fileType NVARCHAR(256) + ,fileState NVARCHAR(256) + ,sizeBytes NVARCHAR(256) + ,sizeGB NVARCHAR(256) + ,fileCount INT + ,fileGroupState NVARCHAR(256) + ); + + CREATE TABLE #resultsContainerFileSummary + ( + [object] NVARCHAR(256) + ,databaseName NVARCHAR(256) + ,fileType NVARCHAR(256) + ,fileState NVARCHAR(256) + ,sizeBytes NVARCHAR(256) + ,sizeMB NVARCHAR(256) + ,fileCount INT + ,fileGroupState NVARCHAR(256) + ); + + IF OBJECT_ID('tempdb..#inmemDatabases') IS NOT NULL DROP TABLE #inmemDatabases; + + /* + -- IF we are searching for a specific @tablename, it could exist in >1 database. + -- This is the point at which we should filter, but it might require dynamic SQL, + -- or deleting database names that don't have an object where the name matches. + + */ + + SELECT QUOTENAME(name) AS name + , database_id + , ROW_NUMBER() OVER (ORDER BY name ASC) AS rowNumber + INTO #inmemDatabases + FROM sys.databases + WHERE name NOT IN ( 'master', 'model', 'tempdb', 'distribution', 'msdb', 'SSISDB') + AND 1 = + CASE + WHEN @RunningOnAzureSQLDB = 1 THEN 1 + WHEN @RunningOnAzureSQLDB = 0 AND name = @dbName THEN 1 + WHEN @RunningOnAzureSQLDB = 0 AND @dbName = N'ALL' THEN 1 + ELSE 0 + END + AND state_desc = 'ONLINE'; + + DECLARE @sql NVARCHAR(MAX) = '' + + DECLARE @counter INT = 1 + , @MaxRows INT = (SELECT COUNT(*) FROM #inmemDatabases); + + WHILE @counter <= @MaxRows + BEGIN + + --IF @debug = 1 PRINT('--@counter = ' + CAST(@counter AS VARCHAR(30)) + ';' + @crlf); + + IF @tableName IS NOT NULL + SELECT @sql = + CONCAT + ( + 'DELETE #inmemDatabases ' + ,'WHERE UPPER(name) = ' + ,'''' + ,UPPER(name) + ,'''' + ,' AND NOT EXISTS (' + ,'SELECT * + FROM ' + ,name + ,'.sys.objects + WHERE UPPER(name) = ' + ,'''' + ,UPPER(@tableName) + ,'''' + ,' AND UPPER(type) = ''U'')' + ) + FROM #inmemDatabases + WHERE rowNumber = @counter; + + IF @debug = 1 PRINT(@sql); + EXEC (@sql) + + SELECT @counter += 1; + END; + + ALTER TABLE #inmemDatabases + ADD newRowNumber INT IDENTITY + + IF @debug = 1 + SELECT 'All ONLINE user databases' AS AllDatabases + ,name + ,database_id + FROM #inmemDatabases; + + IF @dbName IS NULL AND @instanceLevelOnly = 0 + BEGIN + SET @errorMessage = '@dbName IS NULL, please specify database name or ALL'; + THROW 55004, @errorMessage, 1; + RETURN; + END; + + IF (@dbName IS NOT NULL AND @dbName <> N'ALL') + AND (NOT EXISTS (SELECT 1 FROM #inmemDatabases WHERE name = QUOTENAME(@dbName)) AND @instanceLevelOnly = 0) + BEGIN + SET @errorMessage = N'Database [' + @dbName + N'] not found in sys.databases!!!' + @crlf + + N'Did you add N if your database has a unicode name?' + @crlf + + N'Try to exec this: EXEC sp_BlitzInMemoryOLTP @dbName = N''ಠ ಠ_Your_Unicode_DB_Name_ಠ ಠ'''; + THROW 55005, @errorMessage, 1; + RETURN; + END; + + IF @dbName = 'ALL' AND NOT EXISTS (SELECT 1 FROM #inmemDatabases) + BEGIN + SET @errorMessage = 'ALL was specified, but no memory-optimized databases were found'; + THROW 55006, @errorMessage, 1; + RETURN; + END; + + -- we can't reference sys.dm_os_loaded_modules if we're on Azure SQL DB + IF @RunningOnAzureSQLDB = 0 + BEGIN + IF OBJECT_ID('tempdb..#moduleSplit') IS NOT NULL DROP TABLE #moduleSplit; + + CREATE TABLE #moduleSplit + ( + rowNumber INT IDENTITY PRIMARY KEY + ,value NVARCHAR(MAX) NULL + ); + + DECLARE @loadedModules TABLE + ( + rowNumber INT IDENTITY PRIMARY KEY + ,name NVARCHAR(MAX) NULL + ); + + INSERT @loadedModules + ( + name + ) + SELECT name + FROM sys.dm_os_loaded_modules AS a + WHERE description = 'XTP Native DLL' + AND PATINDEX('%[_]p[_]%', name) > 0; + + DECLARE @maxLoadedModules INT = (SELECT COUNT(*) FROM @loadedModules); + DECLARE @moduleCounter INT = 1; + DECLARE @loadedModuleName NVARCHAR(MAX) = ''; + + SET @moduleCounter = 1; + + WHILE @moduleCounter <= @maxLoadedModules + BEGIN + + SELECT @loadedModuleName = name + FROM @loadedModules + WHERE rowNumber = @moduleCounter; + + DECLARE @xml XML + , @delimiter NVARCHAR(10); + SET @delimiter = '_'; + SET @xml = CAST((''+REPLACE(@loadedModuleName, @delimiter, '')+'') AS XML); + + INSERT #moduleSplit + ( + value + ) + SELECT C.value('.', 'NVARCHAR(1000)') AS value FROM @xml.nodes('X') as X(C); + + SELECT @moduleCounter += 1; + + END; + END; + + IF @instanceLevelOnly = 0 + BEGIN + + /* + #################################################### + Determine which databases are memory-optimized + NOTE: if we are running on Azure SQL DB, we need + to verify in-memory capability without joining to + sys.filegroups + #################################################### + */ + SELECT @MaxRows = (SELECT COUNT(*) FROM #inmemDatabases); + SELECT @counter = 1 + + SELECT @sql = '' + + WHILE @counter <= @MaxRows + BEGIN + + --IF @debug = 1 PRINT('--@counter = ' + CAST(@counter AS VARCHAR(30)) + ';' + @crlf); + + IF @counter = 1 + BEGIN + SELECT @sql += ';WITH InMemDatabases AS ('; + END; + + SELECT @sql += + CASE + WHEN @counter = 1 THEN '' -- there is exactly 1 database for the entire instance + ELSE @crlf + ' UNION ALL ' + @crlf + END; + + SELECT @sql += + CASE WHEN @RunningOnAzureSQLDB = 0 THEN + CONCAT + ( + @crlf + ,'SELECT DISTINCT ' + , 'N''' + , name + , ''' AS databaseName,' + @crlf + , database_id + , ' AS database_id' + @crlf+ ' FROM ' + , name + , '.sys.database_files' + @crlf + ' INNER JOIN ' + , name + , '.sys.filegroups ON database_files.data_space_id = filegroups.data_space_id ' + , 'WHERE filegroups.type = ' + ,'''' + ,'FX' + ,'''' + ) + ELSE + -- if we arrive here and we're running on Azure SQL DB, then the database inherently supports In-Memory OLTP + CONCAT + ( + @crlf + ,'SELECT ' + , 'N''' + , name + , ''' AS databaseName,' + @crlf + , database_id + , ' AS database_id' + @crlf + ) + END + FROM #inmemDatabases + WHERE newRowNumber = @counter; + + SELECT @counter += 1; + END; + + --IF @debug = 1 PRINT(@sql); + + + -- post-processing + SELECT @sql += + CONCAT + ( + ')' + ,@crlf + ,'SELECT InMemDatabases.*, sys.databases.log_reuse_wait_desc' + ,@crlf + ,'FROM InMemDatabases ' + ,@crlf + ,'INNER JOIN sys.databases ON ' + ,'QUOTENAME(sys.databases.name) = InMemDatabases.databaseName;' + ); + + IF @debug = 1 + PRINT('--Determine which databases are memory-optimized' + @crlf + @sql + @crlf); + + DECLARE @RowCount INT = (SELECT COUNT(*) FROM #inmemDatabases); + + IF @RowCount <> 0 + BEGIN + + IF OBJECT_ID('tempdb..#MemoryOptimizedDatabases') IS NOT NULL DROP TABLE #MemoryOptimizedDatabases; + + CREATE TABLE #MemoryOptimizedDatabases + ( + rowNumber INT IDENTITY + , dbName NVARCHAR(256) NOT NULL + , database_id INT NULL + , log_reuse_wait_desc NVARCHAR(256) + ); + + INSERT #MemoryOptimizedDatabases + ( + dbName + ,database_id + ,log_reuse_wait_desc + ) + EXECUTE sp_executesql @sql; + + --IF @debug = 1 PRINT(@sql + @crlf); + --ELSE + --BEGIN + SELECT 'Memory-optimized database(s)' AS databases + ,dbName + ,database_id + ,log_reuse_wait_desc + FROM #MemoryOptimizedDatabases + ORDER BY dbName; + --END; + END; + + IF OBJECT_ID('tempdb..#NativeModules') IS NOT NULL DROP TABLE #NativeModules; + + CREATE TABLE #NativeModules + ( + moduleKey INT IDENTITY NOT NULL + ,moduleID INT NOT NULL + ,moduleName NVARCHAR(256) NOT NULL + ,collectionStatus BIT NULL + ); + + SELECT @sql = ''; + DECLARE @dbCounter INT = 1; + SELECT @MaxRows = COUNT(*) FROM #MemoryOptimizedDatabases; + DECLARE @databaseID INT = 1; + + + /* + ################################################### + This is the loop that processes each db + ################################################### + */ + + WHILE @dbCounter <= @MaxRows + BEGIN + + SELECT 'now processing database: ' + dbName AS Status + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + /* + ################################################### + List memory-optimized tables in this database + ################################################### + */ + SELECT @sql = + CONCAT + ( + 'SELECT ' + ,'''Memory optimized tables''' + , ' AS [object],' + , ' N''' + ,dbName + ,''' AS databaseName' + ,', b.name AS tableName + , p.rows AS [rowCount] + ,durability_desc ' + ,CASE WHEN @Version >= 13 THEN ', temporal_type_desc ' ELSE ',NULL AS temporal_type_desc' END + ,', FORMAT(memory_allocated_for_table_kb, ''###,###,###'') AS memoryAllocatedForTableKB + ,FORMAT(memory_used_by_table_kb, ''###,###,###'') AS memoryUsedByTableKB + ,FORMAT(memory_allocated_for_indexes_kb, ''###,###,###'') AS memoryAllocatedForIndexesKB + ,FORMAT(memory_used_by_indexes_kb, ''###,###,###'') AS memoryUsedByIndexesKB + FROM ' + , dbName + ,'.sys.dm_db_xtp_table_memory_stats a' + ,' INNER JOIN ' + , dbName + ,'.sys.tables b ON b.object_id = a.object_id' + ,' INNER JOIN ' + ,dbName + ,'.sys.partitions p' + ,' ON p.[object_id] = b.[object_id]' + ,' INNER JOIN ' + ,dbName + ,'.sys.schemas s' + ,' ON b.[schema_id] = s.[schema_id]' + ,' WHERE p.index_id = 2' + ) + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + IF @tableName IS NOT NULL + BEGIN + SELECT @sql += CONCAT(' AND b.name = ', '''', @tableName, ''''); + END; + + IF @debug = 1 + PRINT('--List memory-optimized tables in this database' + @crlf + @sql + @crlf); + ELSE + BEGIN + + DELETE @resultsInMemTables + INSERT @resultsInMemTables + EXECUTE sp_executesql @sql; + + IF EXISTS(SELECT 1 FROM @resultsInMemTables) + SELECT * FROM @resultsInMemTables; + + END; + + /* + ############################################################## + List indexes on memory-optimized tables in this database + ############################################################## + */ + SELECT @sql = + CONCAT + ( + 'SELECT ' + ,'''List indexes on memory-optimized tables in this database'' AS [object],' + ,' N''' + ,dbName + ,'''' + ,' AS databaseName + ,t.name AS tableName + ,i.name AS indexName + ,c.memory_consumer_id + ,c.memory_consumer_type_desc AS consumerType + ,c.memory_consumer_desc AS description + ,c.allocation_count AS allocations + ,FORMAT(c.allocated_bytes / 1024.0, ''###,###,###,###'') AS allocatedBytesMB + ,FORMAT(c.used_bytes / 1024.00, ''###,###,###,###.###'') AS usedBytesMB + FROM ' + ,dbName + ,'.sys.dm_db_xtp_memory_consumers c + INNER JOIN ' + ,dbName + ,'.sys.tables t ON t.object_id = c.object_id' + ,CASE WHEN @Version > 12 THEN ' INNER JOIN sys.memory_optimized_tables_internal_attributes a ON a.object_id = c.object_id + AND a.xtp_object_id = c.xtp_object_id' ELSE NULL END + ,@crlf + ' LEFT JOIN ' + ,dbName + ,'.sys.indexes i ON c.object_id = i.object_id + AND c.index_id = i.index_id ' + ,CASE WHEN @Version > 12 THEN 'AND a.minor_id = 0' ELSE NULL END + ,@crlf + ' WHERE t.type = ' + , '''u''' + , ' AND t.is_memory_optimized = 1 ' + ,' AND i.index_id IS NOT NULL' + + ) + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + IF @tableName IS NOT NULL + BEGIN + SELECT @sql += CONCAT(' AND t.name = ', '''', @tableName, ''''); + END; + + SELECT @sql += ' ORDER BY tableName, indexName;' + + IF @debug = 1 + PRINT('--List indexes on memory-optimized tables in this database' + @crlf + @sql + @crlf); + ELSE + BEGIN + DELETE @resultsIndexes + INSERT @resultsIndexes + EXECUTE sp_executesql @sql; + + IF EXISTS(SELECT 1 FROM @resultsIndexes) + SELECT * FROM @resultsIndexes; + + END; + + /* + ######################################################### + verify avg_chain_length for HASH indexes + + From BOL: + + Empty buckets: + 33% is a good target value, but a larger percentage (even 90%) is usually fine. + When the bucket count equals the number of distinct key values, approximately 33% of the buckets are empty. + A value below 10% is too low. + + Chains within buckets: + An average chain length of 1 is ideal in case there are no duplicate index key values. Chain lengths up to 10 are usually acceptable. + If the average chain length is greater than 10, and the empty bucket percent is greater than 10%, + the data has so many duplicates that a hash index might not be the most appropriate type. + + ######################################################### + */ + + SELECT @sql = + CONCAT + ( + 'SELECT ' + ,'''avg_chain_length for HASH indexes''' + ,' AS [object],''' + ,dbName + ,'''' + ,' AS databaseName' + ,', sch.name AS [Schema] ' + ,', t.name AS tableName + ,i.name AS [indexName] + ,h.total_bucket_count AS totalBucketCount + ,h.empty_bucket_count AS emptyBucketCount + ,FLOOR((CAST(h.empty_bucket_count AS FLOAT) / h.total_bucket_count) * 100) AS [emptybBucketPercent] + ,h.avg_chain_length AS avg_ChainLength + ,h.max_chain_length AS maxChainLength + ,IIF(FLOOR((CAST(h.empty_bucket_count AS FLOAT) / h.total_bucket_count) * 100) < 33, ''Free buckets % is low!'', '''') AS [Free buckets status] + ,IIF(h.avg_chain_length > 10 AND FLOOR((CAST(h.empty_bucket_count AS FLOAT) / h.total_bucket_count) * 100) > 10, ''avg_chain_length has many collisions!'', '''') AS [avg_chain_length status] + FROM ' + ,dbName + ,'.sys.dm_db_xtp_hash_index_stats AS h + INNER JOIN ' + ,dbName + ,'.sys.indexes AS i ON h.object_id = i.object_id AND h.index_id = i.index_id' + ,CASE WHEN @Version > 12 THEN + CONCAT(' INNER JOIN ', dbName ,'.sys.memory_optimized_tables_internal_attributes ia ON h.xtp_object_id = ia.xtp_object_id') ELSE NULL END + ,' INNER JOIN ' + ,dbName + ,'.sys.tables t ON h.object_id = t.object_id' + ,' INNER JOIN ' + ,dbName + ,'.sys.schemas sch ON sch.schema_id = t.schema_id ' + ,CASE WHEN @Version > 12 THEN 'WHERE ia.type = 1' ELSE NULL END + ) + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + IF @tableName IS NOT NULL + BEGIN + SELECT @sql += CONCAT(' AND t.name = ', '''', @tableName, ''''); + END; + + SELECT @sql += ' ORDER BY sch.name + ,t.name + ,i.name;'; + + IF @debug = 1 + PRINT('--Verify avg_chain_length for HASH indexes' + @crlf + @sql + @crlf); + ELSE + BEGIN + + DELETE @resultsHashBuckets + INSERT @resultsHashBuckets + EXECUTE sp_executesql @sql; +; + IF EXISTS(SELECT 1 FROM @resultsHashBuckets) + SELECT * FROM @resultsHashBuckets; + + END; + + + /* + ######################################################### + Count of indexes per table in this database + ######################################################### + */ + + SELECT @sql = + CONCAT + ( + 'SELECT ' + ,'''Number of indexes per table'' AS [object],' + ,' N''' + ,dbName + ,'''' + ,' AS databaseName + ,t.name AS tableName + ,COUNT(DISTINCT i.index_id) AS indexCount + FROM ' + ,dbName + ,'.sys.dm_db_xtp_memory_consumers c + INNER JOIN ' + ,dbName + ,'.sys.tables t ON t.object_id = c.object_id' + ,CASE WHEN @Version > 12 THEN + CONCAT(' INNER JOIN ', dbName ,'.sys.memory_optimized_tables_internal_attributes a ON a.object_id = c.object_id + AND a.xtp_object_id = c.xtp_object_id') ELSE NULL END + ,' LEFT JOIN ' + ,dbName + ,'.sys.indexes i ON c.object_id = i.object_id + AND c.index_id = i.index_id ' + ,CASE WHEN @Version > 12 THEN ' AND a.minor_id = 0' ELSE NULL END + ,' WHERE t.type = ' + , '''u''' + , ' AND t.is_memory_optimized = 1 ' + ,' AND i.index_id IS NOT NULL' + --,' GROUP BY t.name + -- ORDER BY t.name' + ) + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + IF @tableName IS NOT NULL + BEGIN + SELECT @sql += CONCAT(' AND t.name = ', '''', @tableName, ''''); + END; + + SELECT @sql += + ' GROUP BY t.name + ORDER BY t.name'; + + IF @debug = 1 + PRINT('--Count of indexes per table in this database' + @crlf + @sql + @crlf); + ELSE + BEGIN + + DELETE @resultsIndexCount + INSERT @resultsIndexCount + EXECUTE sp_executesql @sql; + + IF EXISTS(SELECT 1 FROM @resultsIndexCount) + SELECT * FROM @resultsIndexCount; + + END; + + + /* + ##################################################### + List natively compiled modules in this database + ##################################################### + */ + /* + + FN = SQL scalar function + IF = SQL inline table-valued function + TF = SQL table-valued-function + TR = SQL DML trigger + */ + + IF @tableName IS NULL + BEGIN + + SELECT @sql = + CONCAT + ( + 'SELECT ''Natively compiled modules'' AS [object],' + ,' N''' + ,dbName + ,'''' + ,' AS databaseName + ,A.name + ,CASE A.type + WHEN ''FN'' THEN ''Function'' + WHEN ''P'' THEN ''Procedure'' + WHEN ''TR'' THEN ''Trigger'' + END AS type + ,B.definition AS [definition] + FROM ' + , dbName + ,'.sys.all_objects AS A + INNER JOIN ' + ,dbName + ,'.sys.sql_modules AS B ON B.object_id = A.object_id + WHERE UPPER(B.definition) LIKE ''%NATIVE_COMPILATION%'' + AND UPPER(A.name) <> ''SP_BLITZINMEMORYOLTP'' + ORDER BY A.type, A.name' + ) + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + IF @debug = 1 + PRINT('--List natively compiled modules in this database' + @crlf + @sql + @crlf); + ELSE + BEGIN + + DELETE @resultsNativeModules + INSERT @resultsNativeModules + EXECUTE sp_executesql @sql; + + IF EXISTS(SELECT 1 FROM @resultsNativeModules) + SELECT * FROM @resultsNativeModules; + + END; + END; + + /* + ##################################################### + List *loaded* natively compiled modules in this database, i.e. executed at least 1x + ##################################################### + */ + + /* + the format for checkpoint files changed from SQL 2014 to SQL 2016 + + SQL 2014 format: + database_id = 5 + object_id = 309576141 + + H:\SQLDATA\xtp\5\xtp_p_5_309576141.dll + + SQL 2016+ format + database_id = 9 + object_id = 1600880920 + + H:\SQLDATA\xtp\9\xtp_p_9_1600880920_185048689287400_1.dll + + the following code should handle all versions + */ + + -- NOTE: disabling this for Azure SQL DB + IF @tableName IS NULL AND @RunningOnAzureSQLDB = 0 + BEGIN + SELECT @sql = + CONCAT + ( + ';WITH nativeModuleObjectID AS + ( + SELECT DISTINCT REPLACE(value, ''.dll'', '''') AS object_id + FROM #moduleSplit + WHERE rowNumber % ' + ,CASE WHEN @Version = 12 THEN ' 4 = 0' + ELSE ' 6 = 4' -- @Version >= 13 + END + ,')' + ); + + SELECT @sql += + CONCAT + ( + 'SELECT ''Loaded natively compiled modules'' AS [object],' + ,' N''' + ,dbName + ,'''' + ,' AS databaseName + ,name AS moduleName + ,procedures.object_id + FROM ' + ,dbName + ,'.sys.all_sql_modules + INNER JOIN ' + ,dbName + ,'.sys.procedures ON procedures.object_id = all_sql_modules.object_id + INNER JOIN nativeModuleObjectID ON nativeModuleObjectID.object_id = procedures.object_id' + ) + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + IF @debug = 1 + PRINT('--List loaded natively compiled modules in this database (@Version >= 13)' + @crlf + @sql + @crlf); + ELSE + BEGIN + + DELETE @resultsNativeLoaded + INSERT @resultsNativeLoaded + EXECUTE sp_executesql @sql; + + IF EXISTS(SELECT 1 FROM @resultsNativeLoaded) + SELECT * FROM @resultsNativeLoaded; + + END; + END; + + /* + ######################################################### + Count of natively compiled modules in this database + ######################################################### + */ + IF @tableName IS NULL + BEGIN + SELECT @sql = + CONCAT + ( + 'SELECT ''Count of natively compiled modules'' AS [object],' + ,' N''' + ,dbName + ,' ''' + ,' AS databaseName + , COUNT(*) AS [Number of modules] + FROM ' + , dbName + ,'.sys.all_sql_modules + INNER JOIN ' + ,dbName + ,'.sys.procedures ON procedures.object_id = all_sql_modules.object_id + WHERE uses_native_compilation = 1 + ORDER BY 1' + ) + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + IF @debug = 1 + PRINT('--Count of natively compiled modules in this database' + @crlf + @sql + @crlf); + ELSE + BEGIN + + DELETE @resultsNativeModuleCount + INSERT @resultsNativeModuleCount + EXECUTE sp_executesql @sql; + + IF EXISTS(SELECT 1 FROM @resultsNativeModuleCount WHERE [Number of modules] > 0) + SELECT * FROM @resultsNativeModuleCount; + + END; + END; + + /* + ############################################################ + Display memory consumption for temporal/internal tables + ############################################################ + */ + + -- temporal is supported in SQL 2016+ + IF @Version >= 13 + BEGIN + + SELECT @sql = + CONCAT + ( + ';WITH InMemoryTemporalTables + AS + ( + SELECT ' + ,'''' + ,'In-Memory Temporal Tables' + ,'''' + ,'AS object,' + ,'N''' + ,dbName + ,'''' + ,' AS databaseName' + ,',sch.name AS temporalTableSchema + ,T1.OBJECT_ID AS temporalTableObjectId + ,IT.OBJECT_ID AS internalTableObjectId + ,T1.name AS temporalTableName + ,IT.Name AS internalHistoryTableName + FROM ' + ,dbName + ,'.sys.internal_tables IT + INNER JOIN ' + ,dbName + ,'.sys.tables T1 ON IT.parent_OBJECT_ID = T1.OBJECT_ID + INNER JOIN ' + ,dbName + ,'.sys.schemas sch ON sch.schema_id = T1.schema_id + WHERE T1.is_memory_optimized = 1 + AND T1.temporal_type = 2 + ) + ,DetailedConsumption + AS + ( + SELECT object + ,databaseName + ,temporalTableSchema + ,T.temporalTableName + ,T.internalHistoryTableName + ,CASE + WHEN C.object_id = T.temporalTableObjectId + THEN ''Temporal Table'' + ELSE ''Internal Table'' + END AS ConsumedBy + ,C.allocated_bytes + ,C.used_bytes + FROM ' + ,dbName + ,'.sys.dm_db_xtp_memory_consumers C + INNER JOIN InMemoryTemporalTables T + ON C.object_id = T.temporalTableObjectId OR C.object_id = T.internalTableObjectId + WHERE C.allocated_bytes > 0 + AND C.object_id <> T.temporalTableObjectId + ) + SELECT DISTINCT object + ,databaseName + ,temporalTableSchema + ,temporalTableName + ,internalHistoryTableName + ,SUM(allocated_bytes) OVER (PARTITION BY temporalTableName ORDER BY temporalTableName) AS allocatedBytesForInternalHistoryTable + ,SUM(used_bytes) OVER (PARTITION BY temporalTableName ORDER BY temporalTableName) AS usedBytesForInternalHistoryTable + FROM DetailedConsumption' + ) + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + IF @tableName IS NOT NULL + BEGIN + SELECT @sql += CONCAT(' WHERE temporalTableName = ', '''', @tableName, ''''); + END; + + IF @debug = 1 + PRINT('--Display memory consumption for temporal/internal tables' + @crlf + @sql + @crlf); + ELSE + BEGIN + + DELETE @resultsTemporal + INSERT @resultsTemporal + EXECUTE sp_executesql @sql; + + IF EXISTS(SELECT 1 FROM @resultsTemporal) + SELECT * FROM @resultsTemporal; + + END; + END; -- display memory consumption for temporal/internal tables + + /* + ######################################################### + Display memory structures for LOB columns (off-row) + for SQL 2016+ + ######################################################### + */ + + IF @Version >= 13 + BEGIN + + SELECT @sql = + CONCAT + ( + 'SELECT DISTINCT ' + ,'''LOB/Off-row data '' AS [object],' + ,' N''' + ,dbName + ,'''' + ,' AS databaseName' + ,', OBJECT_NAME(a.object_id) AS tableName + ,cols.name AS columnName + ,a.type_desc AS typeDescription + ,c.memory_consumer_type_desc AS memoryConsumerTypeDescription + ,c.memory_consumer_desc AS memoryConsumerDescription + ,c.allocated_bytes AS allocatedBytes + ,c.used_bytes AS usedBytes + FROM ' + ,dbName + ,'.sys.dm_db_xtp_memory_consumers c + INNER JOIN ' + ,dbName + ,'.sys.memory_optimized_tables_internal_attributes a ON a.object_id = c.object_id + AND a.xtp_object_id = c.xtp_object_id ' + ,' INNER JOIN ' + ,dbName + ,'.sys.objects AS b ON b.object_id = a.object_id ' + ,' INNER JOIN ' + ,dbName + ,'.sys.syscolumns AS cols ON cols.id = b.object_id + WHERE a.type_desc = ' + ,'''' + ,'INTERNAL OFF-ROW DATA TABLE' + ,'''' + ,' AND c.memory_consumer_desc = ''Table heap''' + ) + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + IF @tableName IS NOT NULL + BEGIN + SELECT @sql += CONCAT(' AND OBJECT_NAME(a.object_id) = ', '''', @tableName, ''''); + END; + + SELECT @sql += ' ORDER BY databaseName, tableName, columnName'; + + IF @debug = 1 + PRINT('--Display memory structures for LOB columns (off-row)' + @crlf + @sql + @crlf); + ELSE + BEGIN + + DELETE @resultsMemoryConsumerForLOBs + INSERT @resultsMemoryConsumerForLOBs + + EXECUTE sp_executesql @sql; + + IF EXISTS(SELECT 1 FROM @resultsMemoryConsumerForLOBs) + SELECT * FROM @resultsMemoryConsumerForLOBs; + + END; + + END; + + /* + ####################################################### + Display memory-optimized table types + ####################################################### + */ + IF @tableName IS NULL + BEGIN + SELECT @sql = + CONCAT + ( + 'SELECT ' + ,'''Memory optimized table types'' AS [object],' + ,' N''' + ,dbName + ,''' AS databaseName,' + ,'SCHEMA_NAME(tt.schema_id) AS [Schema] + ,tt.name AS [Name] + FROM ' + ,dbName + ,'.sys.table_types AS tt + INNER JOIN ' + ,dbName + ,'.sys.schemas AS stt ON stt.schema_id = tt.schema_id + WHERE tt.is_memory_optimized = 1 + ORDER BY [Schema], tt.name ' + ) + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + IF @debug = 1 + PRINT('--Display memory-optimized table types' + @crlf + @sql + @crlf); + ELSE + BEGIN + + DELETE @resultsTableTypes + INSERT @resultsTableTypes + EXECUTE sp_executesql @sql; + + IF EXISTS(SELECT 1 FROM @resultsTableTypes) + SELECT * FROM @resultsTableTypes; + + END; + + END; + + /* + ################################################################## + ALL database files, including container name, size, location + ################################################################## + */ + + IF @tableName IS NULL + BEGIN + SELECT @sql = + CONCAT + ( + 'SELECT ' + ,'''Database layout'' AS [object],' + ,' N''' + ,dbName + ,'''' + ,' AS databaseName' + ,',filegroups.name AS fileGroupName + ,physical_name AS fileName + ,database_files.name AS [Name] + ,filegroups.type AS fileGroupType + ,IsContainer = IIF(filegroups.type = ''FX'', ''Yes'', ''No'') + ,filegroups.type_desc AS fileGroupDescription + ,database_files.state_desc AS fileGroupState + ,FORMAT(database_files.size * CONVERT(BIGINT, 8192) / 1024, ''###,###,###,###'') AS sizeKB + ,FORMAT(database_files.size * CONVERT(BIGINT, 8192) / 1048576.0, ''###,###,###,###'') AS sizeMB + ,FORMAT(database_files.size * CONVERT(BIGINT, 8192) / 1073741824.0, ''###,###,###,###.##'') AS sizeGB + ,FORMAT(SUM(database_files.size / 128.0) OVER(), ''###,###,###,###'') AS totalSizeMB + FROM ' + ,dbName + ,'.sys.database_files + LEFT JOIN ' + ,dbName + ,'.sys.filegroups ON database_files.data_space_id = filegroups.data_space_id + ORDER BY filegroups.type, filegroups.name, database_files.name' + ) + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + IF @debug = 1 + PRINT('--ALL database files, including container name, size, location' + @crlf + @sql + @crlf); + ELSE + BEGIN + DELETE @resultsDatabaseLayout + + INSERT @resultsDatabaseLayout + EXECUTE sp_executesql @sql; + + IF EXISTS(SELECT 1 FROM @resultsDatabaseLayout) + SELECT * FROM @resultsDatabaseLayout; + + END; + + /* + ################################################################## + container name, size, number of files + ################################################################## + */ + + DELETE #resultsContainerDetails; + + SELECT @sql = + CONCAT + ( + ';WITH ContainerDetails AS + ( + SELECT ' + ,' container_id + ,SUM(ISNULL(file_size_in_bytes, 0)) AS sizeinBytes + ,COUNT(*) AS fileCount + ,MAX(container_guid) AS container_guid + FROM ' + ,dbName + ,'.sys.dm_db_xtp_checkpoint_files + GROUP BY container_id + ) + INSERT #resultsContainerDetails + SELECT + ''Container details by container name'' AS [object],' + ,' N''' + ,dbName + ,'''' + ,' AS databaseName + ,database_files.name AS containerName + ,ContainerDetails.container_id + ,FORMAT(ContainerDetails.sizeinBytes / 1048576., ''###,###,###'') AS sizeMB + ,ContainerDetails.fileCount + FROM ContainerDetails + INNER JOIN ' + ,dbName + ,'.sys.database_files ON ContainerDetails.container_guid = database_files.file_guid' + ) + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + IF @debug = 1 + PRINT('--container name, size, number of files' + @crlf + @sql + @crlf); + ELSE + BEGIN + EXECUTE sp_executesql @sql; + IF EXISTS (SELECT 1 FROM #resultsContainerDetails) + SELECT * FROM #resultsContainerDetails + END + + /* + ################################################################## + container file summary + ################################################################## + */ + + DELETE #resultsContainerFileSummary; + + SELECT @sql = + CONCAT + ( + ';WITH ContainerFileSummary AS + ( + SELECT ' + ,' + SUM(ISNULL(file_size_in_bytes, 0)) AS sizeinBytes + ,MAX(ISNULL(file_type_desc, '''')) AS fileType + ,COUNT(*) AS fileCount + ,MAX(state_desc) AS fileState + ,MAX(container_guid) AS container_guid + FROM ' + ,dbName + ,'.sys.dm_db_xtp_checkpoint_files + GROUP BY file_type_desc, state_desc + ) + INSERT #resultsContainerFileSummary + SELECT + ''Container details by fileType and fileState'' AS [object],' + ,' N''' + ,dbName + ,'''' + ,' AS databaseName + ,ContainerFileSummary.fileType + ,ContainerFileSummary.fileState + ,FORMAT(ContainerFileSummary.sizeinBytes, ''###,###,###'') AS sizeBytes + ,FORMAT(ContainerFileSummary.sizeinBytes / 1048576., ''###,###,###'') AS sizeMB + ,ContainerFileSummary.fileCount + ,database_files.state_desc AS fileGroupState + FROM ContainerFileSummary + INNER JOIN ' + ,dbName + ,'.sys.database_files ON ContainerFileSummary.container_guid = database_files.file_guid' + ,' ORDER BY ContainerFileSummary.fileType, ContainerFileSummary.fileState;' + ) + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + IF @debug = 1 + PRINT('--container file summary' + @crlf + @sql + @crlf); + ELSE + BEGIN + EXECUTE sp_executesql @sql; + IF EXISTS (SELECT 1 FROM #resultsContainerFileSummary) + SELECT * FROM #resultsContainerFileSummary; + END; + + /* + ################################################################## + container file details + ################################################################## + */ + + DELETE #resultsContainerFileDetails; + + SELECT @sql = + CONCAT + ( + ';WITH ContainerFileDetails AS + ( + SELECT + container_id + ,SUM(ISNULL(file_size_in_bytes, 0)) AS sizeinBytes + ,MAX(ISNULL(file_type_desc, '''')) AS fileType + ,COUNT(*) AS fileCount + ,MAX(state_desc) AS fileState + ,MAX(container_guid) AS container_guid + FROM ' + ,dbName + ,'.sys.dm_db_xtp_checkpoint_files + GROUP BY container_id, file_type_desc, state_desc + ) + INSERT #resultsContainerFileDetails + SELECT ' + ,'''Container file details by container_id, fileType and fileState'' AS [object],' + ,' N''' + ,dbName + ,'''' + ,' AS databaseName + ,database_files.name AS containerName + ,ContainerFileDetails.container_id + ,ContainerFileDetails.fileType + ,ContainerFileDetails.fileState + ,FORMAT(ContainerFileDetails.sizeinBytes, ''###,###,###'') AS sizeBytes + ,FORMAT(ContainerFileDetails.sizeinBytes / 1048576., ''###,###,###'') AS sizeGB + ,ContainerFileDetails.fileCount + ,database_files.state_desc AS fileGroupState + FROM ContainerFileDetails + INNER JOIN ' + ,dbName + ,'.sys.database_files ON ContainerFileDetails.container_guid = database_files.file_guid' + ) + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + IF @debug = 1 + PRINT('--container details' + @crlf + @sql + @crlf); + ELSE + BEGIN + EXECUTE sp_executesql @sql; + IF EXISTS (SELECT 1 FROM #resultsContainerFileDetails) + SELECT * FROM #resultsContainerFileDetails; + END; + END; + /* + + ########################################################### + Report on whether or not execution statistics + for natively compiled procedures is enabled + ########################################################### + */ + + IF EXISTS (SELECT 1 FROM #NativeModules) + BEGIN + SELECT @sql = + CONCAT + ( + 'INSERT #NativeModules + ( + moduleID + ,moduleName + ) + SELECT ' + ,dbName + ,'.sys.all_sql_modules.Object_ID AS ObjectID + ,name AS moduleName + FROM ' + ,dbName + ,'.sys.all_sql_modules + INNER JOIN ' + ,dbName + ,'.sys.procedures ON procedures.object_id = all_sql_modules.object_id' + ,' WHERE uses_native_compilation = 1' + ) + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + EXECUTE sp_executesql @sql; + + DELETE @resultsNativeModuleStats; + + SELECT @sql = + CONCAT + ( + 'SELECT ''Native modules that have exec stats enabled'' AS object' + ,',' + ,' N''' + ,dbName + ,''' AS databaseName + ,object_id + ,OBJECT_NAME(object_id) AS ''object name'' + ,cached_time + ,last_execution_time + ,execution_count + ,total_worker_time + ,last_worker_time + ,min_worker_time + ,max_worker_time + ,total_elapsed_time + ,last_elapsed_time + ,min_elapsed_time + ,max_elapsed_time + FROM ' + ,'sys.dm_exec_procedure_stats + WHERE database_id = DB_ID() + AND object_id IN (SELECT object_id FROM sys.sql_modules WHERE uses_native_compilation = 1) + ORDER BY total_worker_time DESC;' + ) + FROM #MemoryOptimizedDatabases + WHERE rowNumber = @dbCounter; + + INSERT @resultsNativeModuleStats + EXECUTE sp_executesql @sql; + + IF @debug = 1 + PRINT('--Native modules with execution status' + @crlf + @sql + @crlf); + ELSE + IF EXISTS(SELECT 1 FROM @resultsNativeModuleStats) + SELECT * FROM @resultsNativeModuleStats; + + END; --IF EXISTS (SELECT 1 FROM #NativeModules) + + ELSE + BEGIN + PRINT '--No modules found that have collection stats enabled'; + END; + + IF @RunningOnAzureSQLDB = 1 + BEGIN + + DELETE @resultsxtp_storage_percent; + + INSERT @resultsxtp_storage_percent + ( + databaseName + ,end_time + ,xtp_storage_percent + ) + SELECT DB_NAME() AS databaseName + ,end_time + ,xtp_storage_percent + FROM sys.dm_db_resource_stats + WHERE xtp_storage_percent > 0; + + IF EXISTS(SELECT 1 FROM @resultsxtp_storage_percent) + BEGIN + SELECT databaseName + ,'xtp_storage_percent in descending order' AS object + ,end_time + ,xtp_storage_percent + FROM @resultsxtp_storage_percent + ORDER BY end_time DESC; + END; + + SELECT DB_NAME() AS databaseName + ,DBScopedConfig = 'XTP_PROCEDURE_EXECUTION_STATISTICS enabled:' + ,Status = CASE WHEN value = 1 THEN 'Yes' ELSE 'No' END + FROM sys.database_scoped_configurations + WHERE UPPER(name) = 'XTP_PROCEDURE_EXECUTION_STATISTICS'; + + SELECT DB_NAME() AS databaseName + ,DBScopedConfig = 'XTP_QUERY_EXECUTION_STATISTICS enabled:' + ,Status = CASE WHEN value = 1 THEN 'Yes' ELSE 'No' END + FROM sys.database_scoped_configurations + WHERE UPPER(name) = 'XTP_QUERY_EXECUTION_STATISTICS'; + END; + + SELECT @dbCounter += 1; + + END; -- This is the loop that processes each database + + END; -- IF @instanceLevelOnly = 0 + + + IF OBJECT_ID('#NativeModules', 'U') IS NOT NULL DROP TABLE #NativeModules; + + /* + ###################################################################################################################### + INSTANCE LEVEL + ###################################################################################################################### + */ + + + /* + ################################################### + Because SQL 2016/SP1 brings In-Memory OLTP to + editions other Enterprise, we must check + @@version + ################################################### + */ + + IF @instanceLevelOnly = 1 AND @Version >= 12 + BEGIN + + SELECT @@version AS Version; + + SELECT name + ,value AS configValue + ,value_in_use AS runValue + FROM sys.configurations + WHERE UPPER(name) LIKE 'MAX SERVER MEMORY%' + ORDER BY name OPTION (RECOMPILE); + + -- from Mark Wilkinson + /* + If memory is being used it should be in here. + + Memory that is reported as being consumed here for XTP was missing in + the other XTP DMVs. We should simply look to see what the highest consumer is. + + SELECT * FROM sys.dm_xtp_system_memory_consumers + + SELECT * FROM sys.dm_db_xtp_memory_consumers + + */ + + SELECT 'dm_os_memory_clerks, DETAILS' AS Object + ,type + ,name + ,pages_kb + ,virtual_memory_reserved_kb + ,virtual_memory_committed_kb + ,awe_allocated_kb + ,shared_memory_reserved_kb + ,shared_memory_committed_kb + FROM sys.dm_os_memory_clerks; + + SELECT 'dm_os_memory_clerks, SUMMARY by XTP type' AS Object + ,type AS object_type + ,SUM(pages_kb) /1024.0 /1024.0 AS pages_mb + FROM sys.dm_os_memory_clerks + WHERE type LIKE '%XTP%' + GROUP BY type; + + DECLARE @xtp_system_memory_consumers TABLE + ( + object_type nvarchar(64) + ,pagesAllocatedMB BIGINT + ,pagesUsedMB BIGINT + ); + + INSERT @xtp_system_memory_consumers + ( + object_type + ,pagesAllocatedMB + ,pagesUsedMB + ) + SELECT memory_consumer_type_desc AS object_type, + SUM(allocated_bytes) /1024.0 /1024.0 AS pagesAllocatedMB + ,SUM(allocated_bytes) /1024.0 /1024.0 AS pagesUsedMB + FROM sys.dm_xtp_system_memory_consumers + GROUP BY memory_consumer_type_desc + ORDER BY memory_consumer_type_desc; + + IF EXISTS (SELECT 1 FROM @xtp_system_memory_consumers) + SELECT 'xtp_system_memory_consumers' AS Object + ,object_type + ,pagesAllocatedMB + ,pagesUsedMB + FROM @xtp_system_memory_consumers; + + -- sys.dm_os_sys_info not supported on Azure SQL Database + IF @RunningOnAzureSQLDB = 0 + BEGIN + SELECT 'Committed Target memory' AS Object + ,FORMAT(committed_target_kb, '###,###,###,###,###') AS committedTargetKB + ,FORMAT(committed_target_kb / 1024, '###,###,###,###,###') AS committedTargetMB + ,FORMAT(committed_target_kb / 1048576, '###,###,###,###,###') AS committedTargetGB + FROM sys.dm_os_sys_info; + END + + IF OBJECT_ID('#TraceFlags', 'U') IS NOT NULL DROP TABLE #TraceFlags; + + CREATE TABLE #TraceFlags + ( + TraceFlag INT NOT NULL + ,Status TINYINT NOT NULL + ,Global TINYINT NOT NULL + ,Session TINYINT NOT NULL + ); + + SET @sql = 'DBCC TRACESTATUS'; + + INSERT #TraceFlags + + EXECUTE sp_executesql @sql; + + IF @debug = 1 + PRINT(@crlf + @sql + @crlf); + + DECLARE @msg NVARCHAR(MAX); + + IF EXISTS (SELECT 1 FROM #TraceFlags WHERE TraceFlag = 10316) -- allows custom indexing on hidden staging table for temporal tables + BEGIN + + SELECT @msg = 'TraceFlag 10316 is enabled'; + + SELECT @msg + ,TraceFlag + ,Status + ,Global + ,Session + FROM #TraceFlags + WHERE TraceFlag = 10316 + ORDER BY TraceFlag; + + END; + + /* + ############################################################################################# + Verify if collection statistics are enabled for: + 1. specific native modules + 2. all native modules (instance-wide config) + + Having collection statistics enabled can severely impact performance of native modules. + ############################################################################################# + */ + + -- instance level + DECLARE @InstancecollectionStatus BIT; + + IF @RunningOnAzureSQLDB = 0 + BEGIN + + EXEC sys.sp_xtp_control_query_exec_stats + @old_collection_value = @InstancecollectionStatus OUTPUT; + + SELECT + CASE + WHEN @InstancecollectionStatus = 1 THEN 'YES' + ELSE 'NO' + END AS [instance-level collection of execution statistics for Native Modules enabled]; + END; + ELSE + BEGIN + -- repeating this from the database section if we are running @instanceLevelOnly = 1 + + DELETE @resultsxtp_storage_percent; + + INSERT @resultsxtp_storage_percent + ( + databaseName + ,end_time + ,xtp_storage_percent + ) + SELECT DB_NAME() AS databaseName + ,end_time + ,xtp_storage_percent + FROM sys.dm_db_resource_stats + WHERE xtp_storage_percent > 0; + + IF EXISTS(SELECT 1 FROM @resultsxtp_storage_percent) + BEGIN + SELECT databaseName + ,'xtp_storage_percent in descending order' AS object + ,end_time + ,xtp_storage_percent + FROM @resultsxtp_storage_percent + ORDER BY end_time DESC; + END; + + SELECT DB_NAME() AS databaseName + ,DBScopedConfig = 'XTP_PROCEDURE_EXECUTION_STATISTICS enabled:' + ,Status = CASE WHEN value = 1 THEN 'Yes' ELSE 'No' END + FROM sys.database_scoped_configurations + WHERE UPPER(name) = 'XTP_PROCEDURE_EXECUTION_STATISTICS'; + + SELECT DB_NAME() AS databaseName + ,DBScopedConfig = 'XTP_QUERY_EXECUTION_STATISTICS enabled:' + ,Status = CASE WHEN value = 1 THEN 'Yes' ELSE 'No' END + FROM sys.database_scoped_configurations + WHERE UPPER(name) = 'XTP_QUERY_EXECUTION_STATISTICS'; + END; + + /* + #################################################################################### + List any databases that are bound to resource pools + + NOTE #1: if there are memory optimized databases that do NOT appear + in this list, they consume memory from the 'default' pool, where + all other SQL Server memory is allocated from. + + If the memory-optimized footprint grows, from either addition of rows, + or row versions, it can put pressure on the buffer pool, cause it to shrink, + and affect performance for harddrive-based tables. + + NOTE #2: if you want to bind a memory-optimized database to resource pool, + the database must be taken OFFLINE/ONINE for the binding to take effect. + This will cause all durable data to be removed from memory, and re(streamed) + from checkpoint file pairs. + + #################################################################################### + */ + + IF EXISTS ( + SELECT 1 + FROM sys.databases d + INNER JOIN sys.dm_resource_governor_resource_pools AS Pools ON Pools.pool_id = d.resource_pool_id + ) + SELECT 'Resource pool' AS [object] + ,Pools.name AS poolName + ,d.name AS databaseName + ,min_memory_percent AS minMemoryPercent + ,max_memory_percent AS maxMemoryPercent + ,used_memory_kb / 1024 AS usedMemoryMB + ,max_memory_kb / 1024 AS maxMemoryMB + ,FORMAT(((used_memory_kb * 1.0) / (max_memory_kb * 1.0) * 100), '###.##') AS percentUsed + ,target_memory_kb / 1024 AS targetMemoryMB + FROM sys.databases d + INNER JOIN sys.dm_resource_governor_resource_pools AS Pools ON Pools.pool_id = d.resource_pool_id + ORDER BY poolName, databaseName; + + /* + ########################################################### + Memory breakdown + ########################################################### + */ + + ;WITH clerksAggregated AS + ( + SELECT clerks.[type] AS clerkType + ,CONVERT(CHAR(20) + ,SUM(clerks.pages_kb) / 1024.0) AS clerkTypeUsageMB + FROM sys.dm_os_memory_clerks AS clerks WITH (NOLOCK) + WHERE clerks.pages_kb <> 0 + AND clerks.type IN ('MEMORYCLERK_SQLBUFFERPOOL', 'MEMORYCLERK_XTP') + GROUP BY clerks.[type] + ) + ,clerksAggregatedString AS + ( + SELECT clerkType + ,clerkTypeUsageMB + ,PATINDEX('%.%', clerkTypeUsageMB) AS decimalPoint + FROM clerksAggregated + ) + SELECT clerkType + ,memUsageMB = + CASE + WHEN decimalPoint > 1 THEN SUBSTRING(clerkTypeUsageMB, 1, PATINDEX('%.%', clerkTypeUsageMB) -1) + ELSE clerkTypeUsageMB + END + FROM clerksAggregatedString; + + DECLARE @dm_os_memory_clerks TABLE + ( + clerk_type NVARCHAR(60) + ,name NVARCHAR(256) + ,memory_node_id SMALLINT + ,pages_mb BIGINT + ); + + INSERT @dm_os_memory_clerks + ( + clerk_type + ,name + ,memory_node_id + ,pages_mb + ) + -- total memory allocated for in-memory engine + SELECT type AS clerk_type + ,name + ,memory_node_id + ,pages_kb/1024 AS pages_mb + FROM sys.dm_os_memory_clerks + WHERE type LIKE '%xtp%'; + + IF EXISTS (SELECT 1 FROM @dm_os_memory_clerks) + SELECT * + FROM @dm_os_memory_clerks; + + + /* + ################################################################# + Oldest xtp transactions, they might prevent + garbage collection from cleaning up row versions + ################################################################# + */ + + DECLARE @dm_db_xtp_transactions TABLE + ( + [object] NVARCHAR(256) + ,xtp_transaction_id BIGINT + ,transaction_id BIGINT + ,session_id SMALLINT + ,begin_tsn BIGINT + ,end_tsn BIGINT + ,state_desc NVARCHAR(64) + ,result_desc NVARCHAR(64) + ); + + INSERT @dm_db_xtp_transactions + ( + object + ,xtp_transaction_id + ,transaction_id + ,session_id + ,begin_tsn + ,end_tsn + ,state_desc + ,result_desc + ) + SELECT TOP 10 'Oldest xtp transactions' AS [object] + ,xtp_transaction_id + ,transaction_id + ,session_id + ,begin_tsn + ,end_tsn + ,state_desc + ,result_desc + FROM sys.dm_db_xtp_transactions + ORDER BY begin_tsn DESC; + + IF EXISTS (SELECT 1 FROM @dm_db_xtp_transactions) + SELECT * + FROM @dm_db_xtp_transactions; + + /* + ################################################################# + Is event notification defined at the serverdb level? + If so, errors will be generated, as EN is not + supported for memory-optimized objects, and causes problems + ################################################################# + */ + + IF EXISTS( + SELECT 1 + FROM sys.event_notifications + ) + BEGIN + SELECT 'Event notifications are listed below'; + SELECT * + FROM sys.event_notifications; + END; + END; -- @instanceLevelOnly = 1 AND @Version >= 12 + + SELECT + 'Thanks for using sp_BlitzInMemoryOLTP!' AS [Thanks], + 'From Your Community Volunteers' AS [From], + 'http://FirstResponderKit.org' AS [At], + 'We hope you found this tool useful. Current version: ' + + @ScriptVersion + ' released on ' + CONVERT(NVARCHAR(30), @VersionDate) + '.' AS [Version]; + + +END TRY + +BEGIN CATCH + THROW + PRINT 'Error: ' + CONVERT(varchar(50), ERROR_NUMBER()) + + ', Severity: ' + CONVERT(varchar(5), ERROR_SEVERITY()) + + ', State: ' + CONVERT(varchar(5), ERROR_STATE()) + + ', Procedure: ' + ISNULL(ERROR_PROCEDURE(), '-') + + ', Line: ' + CONVERT(varchar(5), ERROR_LINE()) + + ', User name: ' + CONVERT(sysname, CURRENT_USER); + PRINT ERROR_MESSAGE(); +END CATCH; +GO + diff --git a/Stored_Procedure/sp_Blocked_Process_Report_Viewer.sql b/Stored_Procedure/dbo.sp_Blocked_Process_Report_Viewer.sql similarity index 88% rename from Stored_Procedure/sp_Blocked_Process_Report_Viewer.sql rename to Stored_Procedure/dbo.sp_Blocked_Process_Report_Viewer.sql index 91edec3a..09930f5b 100644 --- a/Stored_Procedure/sp_Blocked_Process_Report_Viewer.sql +++ b/Stored_Procedure/dbo.sp_Blocked_Process_Report_Viewer.sql @@ -1,36 +1,35 @@ -IF OBJECT_ID('dbo.sp_blocked_process_report_viewer') IS NULL -EXECUTE ('CREATE PROCEDURE dbo.sp_blocked_process_report_viewer AS SELECT 1'); +USE master GO -ALTER PROCEDURE dbo.sp_blocked_process_report_viewer( - @Source NVARCHAR(MAX) - , @Type varchar(10) = 'FILE' -) -/* -Autor: Michael J. Swart -Source Link: https://sqlblockedprocesses.codeplex.com/ +IF OBJECT_ID('sp_blocked_process_report_viewer') IS NULL + EXEC (' + CREATE PROCEDURE dbo.sp_blocked_process_report_viewer + AS + SELECT ''Replace Me''') +GO -@Source: -If the blocked process reports you'd like to examine came from a trace file, then this parameter specifies the name of the trace table or trace file that holds the blocked process reports. -If the blocked process reports you'd like to examine are in an extended events session, then this parameter specifies the name of the session (not the session target). -If you are using extended events as a source, the target must either be a ring_buffer or an event_file. +ALTER PROCEDURE dbo.sp_blocked_process_report_viewer +( + @Source nvarchar(max), + @Type varchar(10) = 'FILE' +) -@Type: -Is the type of file referenced by SourceOfTraceOrSessionTarget. Values can be TABLE, FILE, XMLFILE or XESESSION. The default is FILE -*/ AS -BEGIN -SET NOCOUNT ON; +/* +Original link: http://michaeljswart.com/2011/04/a-new-way-to-examine-blocked-process-reports/ +Author: Michael J. Swart +*/ +SET NOCOUNT ON -- Validate @Type IF (@Type NOT IN ('FILE', 'TABLE', 'XMLFILE', 'XESESSION')) - RAISERROR ('The @Type parameter must be ''FILE'', ''TABLE'' or ''XMLFILE''', 11, 1); + RAISERROR ('The @Type parameter must be ''FILE'', ''TABLE'' or ''XMLFILE''', 11, 1) IF (@Source LIKE '%.trc' AND @Type <> 'FILE') - RAISERROR ('Warning: You specified a .trc trace. You should also specify @Type = ''FILE''', 10, 1); + RAISERROR ('Warning: You specified a .trc trace. You should also specify @Type = ''FILE''', 10, 1) IF (@Source LIKE '%.xml' AND @Type <> 'XMLFILE') - RAISERROR ('Warning: You specified a .xml trace. You should also specify @Type = ''XMLFILE''', 10, 1); + RAISERROR ('Warning: You specified a .xml trace. You should also specify @Type = ''XMLFILE''', 10, 1) IF (@Type = 'XESESSION' AND NOT EXISTS ( SELECT * @@ -58,8 +57,8 @@ CREATE TABLE #ReportsXML unique nonclustered (monitorloop, blocking_spid, blocking_ecid, blocked_spid, blocked_ecid) ); -DECLARE @SQL NVARCHAR(MAX); -DECLARE @TableSource NVARCHAR(MAX); +DECLARE @SQL NVARCHAR(max); +DECLARE @TableSource nvarchar(max); -- define source for table IF (@Type = 'TABLE') @@ -80,7 +79,7 @@ END -- load table or file IF (@Type IN ('TABLE', 'FILE' )) BEGIN - SET @SQL = N' + SET @SQL = N' INSERT #ReportsXML(blocked_ecid,blocked_spid,blocking_ecid,blocking_spid, monitorloop,bpReportXml,endTime) SELECT blocked_ecid,blocked_spid,blocking_ecid,blocking_spid, @@ -126,13 +125,16 @@ BEGIN IF (@SessionType = 'event_file') BEGIN - + SELECT @filenamePattern = REPLACE( CAST([value] AS sysname), '.xel', '*xel' ) FROM sys.server_event_session_fields WHERE event_session_id = @SessionId AND [object_id] = @SessionTargetId AND name = 'filename' + IF (@filenamePattern not like '%xel') + set @filenamePattern += '*xel'; + INSERT #ReportsXML(blocked_ecid,blocked_spid,blocking_ecid,blocking_spid, monitorloop,bpReportXml,endTime) SELECT blocked_ecid,blocked_spid,blocking_ecid,blocking_spid, @@ -279,9 +281,9 @@ Hierarchy AS cast('/' + blocking_hierarchy_string as varchar(max)) as chain, 0 as level FROM Blockheads - + UNION ALL - + SELECT irx.monitorloop, irx.blocked_spid, irx.blocked_ecid, cast(h.chain + irx.blocked_hierarchy_string as varchar(max)), h.level+1 @@ -301,12 +303,12 @@ SELECT ELSE '(' + CAST(h.ecid as varchar(20)) + ')' END AS blockingTree, irx.bpReportXml -from Hierarchy h -left join #ReportsXML irx - on irx.monitorloop = h.monitorloop - and irx.blocked_spid = h.spid - and irx.blocked_ecid = h.ecid -order by h.monitorloop, h.chain; +FROM Hierarchy h +LEFT JOIN #ReportsXML irx + ON irx.monitorloop = h.monitorloop + AND irx.blocked_spid = h.spid + AND irx.blocked_ecid = h.ecid +ORDER BY h.monitorloop, h.chain; DROP TABLE #ReportsXML; diff --git a/Stored_Procedure/dbo.sp_ChangeDatabaseOwnerShip.sql b/Stored_Procedure/dbo.sp_ChangeDatabaseOwnerShip.sql new file mode 100644 index 00000000..2e0b09f2 --- /dev/null +++ b/Stored_Procedure/dbo.sp_ChangeDatabaseOwnerShip.sql @@ -0,0 +1,64 @@ +/* +Original link: https://sqlundercover.com/2017/08/18/undercover-toolbox-sp_changedatabaseownership-producing-statements-to-alter-authorisation/ +*/ + +USE [master] +go + +/********************************************** +--Procedure Name: sp_ChangeDatabaseOwnerShip +--Author: Adrian Buckman +--Create Date: 17/08/2017 + +--Description: Produce a script that will provide ALTER statements to change the database +--ownership to the new owner and also ALTER statements to revert back to the old owner + +--Revision History: +. + +**********************************************/ + +CREATE PROCEDURE sp_ChangeDatabaseOwnerShip +( +@DBOwner NVARCHAR(128) = NULL, +@Help BIT = 0 +) +AS + +IF @Help = 1 +BEGIN +PRINT 'Parameters: +@DBOwner NVARCHAR(128) - Set the new owner name here' +END + +IF @Help = 0 +BEGIN +DECLARE @UserSid VARBINARY = SUSER_SID(@DBOwner) + +IF @UserSid IS NOT NULL +BEGIN + +SELECT DISTINCT +sys.databases.Name AS Databasename, +COALESCE(SUSER_SNAME(sys.databases.owner_sid),'') AS CurrentOwner, +'ALTER AUTHORIZATION ON DATABASE::['+sys.databases.name +'] TO ['+@DBOwner+'];' AS ChangeToNewOwner, +'ALTER AUTHORIZATION ON DATABASE::['+sys.databases.name +'] TO ['+COALESCE(SUSER_SNAME(sys.databases.owner_sid),'')+'];' AS RevertToOriginalOwner +FROM +sys.databases +LEFT JOIN sys.availability_databases_cluster ADC ON sys.databases.name = ADC.database_name +LEFT JOIN sys.dm_hadr_availability_group_states st ON st.group_id = ADC.group_id +LEFT JOIN master.sys.availability_groups ag ON st.group_id = AG.group_id +WHERE (primary_replica = @@Servername +AND sys.databases.owner_sid != @UserSid) +OR (sys.databases.owner_sid != @UserSid +AND sys.databases.state = 0 +AND sys.databases.source_database_id IS NULL +AND sys.databases.replica_id IS NULL) + +END +ELSE +BEGIN +RAISERROR('No SID found for the owner name you have provided - please check the owner name and try again',11,1) +END + +END \ No newline at end of file diff --git a/Stored_Procedure/dbo.sp_DBA_job_notification.sql b/Stored_Procedure/dbo.sp_DBA_job_notification.sql new file mode 100644 index 00000000..0917f071 --- /dev/null +++ b/Stored_Procedure/dbo.sp_DBA_job_notification.sql @@ -0,0 +1,147 @@ +GO +/****** Object: StoredProcedure [dbo].[spDBA_job_notification] Script Date: 2/3/2017 7:50:51 AM ******/ +SET ANSI_NULLS ON; +GO +SET QUOTED_IDENTIFIER ON; +GO +ALTER PROCEDURE [dbo].[spDBA_job_notification] + @jobid UNIQUEIDENTIFIER +AS /********************************************************************************************************* + Purpose: SQL Job Agent does not send the error messages on failure, + so this procedure queries msdb to for the error message and sends an email. + + usage: EXEC spDBA_job_notification $(ESCAPE_NONE(JOBID)) SQL2005 SP1 + +********************************************************************************************************/ + SET NOCOUNT ON; + DECLARE @Today DATETIME + ,@CrLf VARCHAR(10) + ,@stat_Failed TINYINT + ,@stat_Succeeded TINYINT + ,@stat_Retry TINYINT + ,@stat_Canceled TINYINT + ,@stat_In_progress TINYINT; + DECLARE @Email_To NVARCHAR(100) = 'You@youremailhost.ext' + ,@Email_From NVARCHAR(50) + ,@subject VARCHAR(200) + ,@Body VARCHAR(8000); + DECLARE @jobname sysname + ,@stepname sysname + ,@Err_severity INT + ,@run_datetime DATETIME + ,@DBname sysname + ,@command VARCHAR(3200) + ,@ErrMessage VARCHAR(1024) + ,@retry BIT = 0; + SET @Body = ''; + SET @CrLf = CHAR(10); +--constants for Job Status execution: + SET @stat_Failed = 0; + SET @stat_Succeeded = 1; + SET @stat_Retry = 2; + SET @stat_Canceled = 3; + SET @stat_In_progress = 4; + SET @Today = GETDATE(); + + DECLARE curFailedJobs CURSOR READ_ONLY FAST_FORWARD + FOR + SELECT sj.name + ,sjh.step_name + ,sjh.sql_severity + ,sjs.database_name + ,run_datetime = CONVERT(DATETIME, LEFT(run_date, 4) + '/' + + SUBSTRING(run_date, 5, 2) + '/' + RIGHT(run_date, 2) + ' ' + + LEFT(run_time, 2) + ':' + SUBSTRING(run_time, 3, 2) + ':' + + RIGHT(run_time, 2)) + ,sjs.command + ,sjh.message + FROM msdb..sysjobs sj + JOIN ( SELECT instance_id + ,job_id + ,step_id + ,step_name + ,sql_message_id + ,sql_severity + ,message + ,run_status + ,run_duration + ,operator_id_emailed + ,operator_id_netsent + ,operator_id_paged + ,retries_attempted + ,server + ,run_date = CONVERT(VARCHAR(8), run_date) + ,run_time = CASE WHEN LEN(CONVERT(VARCHAR(8), run_time)) = 5 + THEN '0' + + CONVERT(VARCHAR(8), run_time) + ELSE CONVERT(VARCHAR(8), run_time) + END + FROM msdb..sysjobhistory + ) sjh ON sj.job_id = sjh.job_id + JOIN msdb..sysjobsteps sjs ON sjs.job_id = sjh.job_id + AND sjs.step_id = sjh.step_id + + -- sjh_Min contains the most recent instance_id (an identity column) from where we should start checking for any failed status records. + JOIN ( + -- to account for when there is are multiple log history + SELECT job_id + ,instance_id = MAX(instance_id) + FROM msdb..sysjobhistory + WHERE job_id = @jobid + AND step_id = 0 + GROUP BY job_id + UNION + -- to account for when you run the job for the first time, there is no history, there will not be any records where the step_id=0. + SELECT job_id + ,instance_id = MIN(instance_id) + FROM msdb..sysjobhistory + WHERE job_id = @jobid + AND NOT EXISTS ( SELECT * + FROM msdb..sysjobhistory + WHERE job_id = @jobid + AND step_id = 0 ) + GROUP BY job_id + ) sjh_Min ON sjh_Min.job_id = sj.job_id + AND sjh.instance_id > sjh_Min.instance_id -- we only want the most recent error message(s). + WHERE sj.job_id = @jobid + AND sjh.step_id <> 0 --exclude the job outcome step + AND sjh.run_status IN ( @stat_Failed ) --filter for only failed status + ORDER BY sjh.instance_id; + + OPEN curFailedJobs; + FETCH NEXT FROM curFailedJobs INTO @jobname, @stepname, @Err_severity, + @DBname, @run_datetime, @command, @ErrMessage; + WHILE @@fetch_status = 0 + BEGIN + -- Build the Email Body + SET @Body = @Body + 'Step name= ' + @stepname + @CrLf + + 'DB Name = ' + CONVERT(VARCHAR(50), ISNULL(@DBname, '')) + + @CrLf + 'Run Date = ' + CONVERT(VARCHAR(50), @run_datetime) + + @CrLf; + + IF ( @Err_severity <> 0 ) + SET @Body = @Body + 'Severity = ' + + CONVERT(VARCHAR(10), @Err_severity) + @CrLf; + + SET @Body = @Body + 'Error = ' + ISNULL(@ErrMessage, '') + + @CrLf + @CrLf + 'Command = ' + ISNULL(@command, '') + @CrLf; + + FETCH NEXT FROM curFailedJobs INTO @jobname, @stepname, + @Err_severity, @DBname, @run_datetime, @command, @ErrMessage; + END; + CLOSE curFailedJobs; + DEALLOCATE curFailedJobs; + +-- Send the Email + IF ( RTRIM(@Body) <> '' ) + BEGIN + SET @subject = 'ALERT: ' + @jobname + ' FAILED on \\' + + @@servername; + SET @Body = -- 'Server= ' + @@servername + @CrLf + + 'Job_name = ' + @jobname + @CrLf + + '--------------------------------------' + @CrLf + @Body; + + + EXEC msdb.dbo.sp_send_dbmail @profile_name = 'DBMAILPROFILE', + @recipients = @Email_To, @subject = @subject, @body = @Body; + + END; \ No newline at end of file diff --git a/Stored_Procedure/sp_DBPermissions.sql b/Stored_Procedure/dbo.sp_DBPermissions.sql similarity index 79% rename from Stored_Procedure/sp_DBPermissions.sql rename to Stored_Procedure/dbo.sp_DBPermissions.sql index 04079433..0d8c579c 100644 --- a/Stored_Procedure/sp_DBPermissions.sql +++ b/Stored_Procedure/dbo.sp_DBPermissions.sql @@ -72,6 +72,25 @@ Parameters: @IncludeMSShipped When this is set to 1 (the default) then all principals will be included. When set to 0 the fixed server roles and SA and Public principals will be excluded. + @DropTempTables + When this is set to 1 (the default) the temp tables used are dropped. If it's 0 + then the tempt ables are kept for references after the code has finished. + The temp tables are: + ##DBPrincipals + ##DBRoles + ##DBPermissions + @Output + What type of output is desired. + Default - Either 'Default' or it doesn't match any of the allowed values then the SP + will return the standard 3 outputs. + None - No output at all. Usually used if you keeping the temp tables to do your own + reporting. + CreateOnly - Only return the create scripts where they aren't NULL. + DropOnly - Only return the drop scripts where they aren't NULL. + ScriptsOnly - Return drop and create scripts where they aren't NULL. + Report - Returns one output with one row per principal and a comma delimited list of + roles the principal is a member of and a comma delimited list of the + individual permissions they have. @Print Defaults to 0, but if a 1 is passed in then the queries are not run but printed out instead. This is primarily for debugging. @@ -115,6 +134,14 @@ Data is ordered as follows I'd missed it. -- V6.0 -- 10/19/2014 - Add @UserLikeSearch and @IncludeMSShipped parameters. +-- 11/29/2016 - Fixed permissions for symmetric keys +-- Found and fixed by Brenda Grossnickle +-- 03/25/2017 - Move SID towards the end of the first output so the more important +-- columns are closer to the front. +-- 03/25/2017 - Add IF Exists to drop and create user scripts +-- 03/25/2017 - Remove create/drop user scripts for guest, public, sys and INFORMATION_SCHEMA +-- 03/25/2017 - Add @DropTempTables to keep the temp tables after the SP is run. +-- 03/26/2017 - Add @Output to allow different types of output. *********************************************************************************************/ ALTER PROCEDURE dbo.sp_DBPermissions @@ -128,6 +155,8 @@ ALTER PROCEDURE dbo.sp_DBPermissions @LoginName sysname = NULL, @UseLikeSearch bit = 1, @IncludeMSShipped bit = 1, + @DropTempTables bit = 1, + @Output varchar(30) = 'Default', @Print bit = 0 ) AS @@ -169,11 +198,11 @@ DECLARE @LikeOperator nvarchar(4) IF @UseLikeSearch = 1 SET @LikeOperator = N'LIKE' -ELSE +ELSE SET @LikeOperator = N'=' IF @UseLikeSearch = 1 -BEGIN +BEGIN IF LEN(ISNULL(@Principal,'')) > 0 SET @Principal = N'%' + @Principal + N'%' @@ -193,27 +222,26 @@ IF @Print = 1 AND @DBName = N'All' PRINT 'SET @AllDBNames = ''master''' PRINT '' END - - --========================================================================= -- Database Principals -SET @sql = - @use + +SET @sql = N'SELECT ' + CASE WHEN @DBName = 'All' THEN N'@AllDBNames' ELSE N'''' + @DBName + N'''' END + N' AS DBName,' + - N' DBPrincipals.name AS DBPrincipal, SrvPrincipals.name AS SrvPrincipal, DBPrincipals.sid, ' + NCHAR(13) + - N' DBPrincipals.type, DBPrincipals.type_desc, DBPrincipals.default_schema_name, ' + NCHAR(13) + - N' DBPrincipals.create_date, DBPrincipals.modify_date, DBPrincipals.is_fixed_role, ' + NCHAR(13) + - N' Authorizations.name AS Role_Authorization, ' + NCHAR(13) + - N' CASE WHEN DBPrincipals.is_fixed_role = 0 AND DBPrincipals.name <> ''dbo'' THEN ' + NCHAR(13) + - CASE WHEN @DBName = 'All' THEN N' ''USE '' + QUOTENAME(@AllDBNames) + ''; '' + ' +NCHAR(13) ELSE N'' END + + N' DBPrincipals.principal_id AS DBPrincipalId, DBPrincipals.name AS DBPrincipal, SrvPrincipals.name AS SrvPrincipal, ' + NCHAR(13) + + N' DBPrincipals.type, DBPrincipals.type_desc, DBPrincipals.default_schema_name, DBPrincipals.create_date, ' + NCHAR(13) + + N' DBPrincipals.modify_date, DBPrincipals.is_fixed_role, ' + NCHAR(13) + + N' Authorizations.name AS RoleAuthorization, DBPrincipals.sid, ' + NCHAR(13) + + N' CASE WHEN DBPrincipals.is_fixed_role = 0 AND DBPrincipals.name NOT IN (''dbo'',''guest'', ''INFORMATION_SCHEMA'', ''public'', ''sys'') THEN ' + NCHAR(13) + + CASE WHEN @DBName = 'All' THEN N' ''USE '' + QUOTENAME(@AllDBNames) + ''; '' + ' + NCHAR(13) ELSE N'' END + + N' ''IF DATABASE_PRINCIPAL_ID('''''' + DBPrincipals.name + '''''') IS NOT NULL '' + ' + NCHAR(13) + N' ''DROP '' + CASE DBPrincipals.[type] WHEN ''C'' THEN NULL ' + NCHAR(13) + N' WHEN ''K'' THEN NULL ' + NCHAR(13) + N' WHEN ''R'' THEN ''ROLE'' ' + NCHAR(13) + N' WHEN ''A'' THEN ''APPLICATION ROLE'' ' + NCHAR(13) + N' ELSE ''USER'' END + ' + NCHAR(13) + - N' '' ''+QUOTENAME(DBPrincipals.name' + @Collation + N') + '';'' ELSE NULL END AS Drop_Script, ' + NCHAR(13) + - N' CASE WHEN DBPrincipals.is_fixed_role = 0 AND DBPrincipals.name <> ''dbo'' THEN ' + NCHAR(13) + + N' '' ''+QUOTENAME(DBPrincipals.name' + @Collation + N') + '';'' ELSE NULL END AS DropScript, ' + NCHAR(13) + + N' CASE WHEN DBPrincipals.is_fixed_role = 0 AND DBPrincipals.name NOT IN (''dbo'',''guest'', ''INFORMATION_SCHEMA'', ''public'', ''sys'') THEN ' + NCHAR(13) + CASE WHEN @DBName = 'All' THEN N' ''USE '' + QUOTENAME(@AllDBNames) + ''; '' + ' +NCHAR(13) ELSE N'' END + + N' ''IF DATABASE_PRINCIPAL_ID('''''' + DBPrincipals.name + '''''') IS NULL '' + ' + NCHAR(13) + N' ''CREATE '' + CASE DBPrincipals.[type] WHEN ''C'' THEN NULL ' + NCHAR(13) + N' WHEN ''K'' THEN NULL ' + NCHAR(13) + N' WHEN ''R'' THEN ''ROLE'' ' + NCHAR(13) + @@ -237,7 +265,7 @@ SET @sql = N' AND DBPrincipals.sid NOT IN (0x00, 0x01) ' + NCHAR(13) + N' THEN '' -- Possible missing server principal'' ' + NCHAR(13) + N' ELSE '''' END ' + NCHAR(13) + - N' AS Create_Script ' + NCHAR(13) + + N' AS CreateScript ' + NCHAR(13) + N'FROM sys.database_principals DBPrincipals ' + NCHAR(13) + N'LEFT OUTER JOIN sys.database_principals Authorizations ' + NCHAR(13) + N' ON DBPrincipals.owning_principal_id = Authorizations.principal_id ' + NCHAR(13) + @@ -302,35 +330,40 @@ IF @IncludeMSShipped = 0 SET @sql = @sql + NCHAR(13) + N' AND DBPrincipals.is_fixed_role = 0 ' + NCHAR(13) + ' AND DBPrincipals.name NOT IN (''dbo'',''public'',''INFORMATION_SCHEMA'',''guest'',''sys'') ' -SET @sql = @sql + NCHAR(13) + - N'ORDER BY DBPrincipals.name ' - IF @Print = 1 - PRINT N'-- Database Principals' + NCHAR(13) + CAST(@sql AS nvarchar(max)) + NCHAR(13) + NCHAR(13) +BEGIN + PRINT N'-- Database Principals' + PRINT CAST(@sql AS nvarchar(max)) + PRINT '' -- Spacing before the next print + PRINT '' +END ELSE +BEGIN + IF object_id('tempdb..##DBPrincipals') IS NOT NULL + DROP TABLE ##DBPrincipals + + -- Create temp table to store the data in + CREATE TABLE ##DBPrincipals ( + DBName sysname NULL, + DBPrincipalId int NULL, + DBPrincipal sysname NULL, + SrvPrincipal sysname NULL, + type char(1) NULL, + type_desc nchar(60) NULL, + default_schema_name sysname NULL, + create_date datetime NULL, + modify_date datetime NULL, + is_fixed_role bit NULL, + RoleAuthorization sysname NULL, + sid varbinary(85) NULL, + DropScript nvarchar(max) NULL, + CreateScript nvarchar(max) NULL + ) + + SET @sql = @use + N'INSERT INTO ##DBPrincipals ' + NCHAR(13) + @sql + IF @DBName = 'All' BEGIN - -- Create temp table to store the data in - CREATE TABLE #DBPrincipals ( - DBName sysname NULL, - DBPrincipal sysname NULL, - SrvPrincipal sysname NULL, - sid varbinary(85) NULL, - type char(1) NULL, - type_desc nchar(60) NULL, - default_schema_name sysname NULL, - create_date datetime NULL, - modify_date datetime NULL, - is_fixed_role bit NULL, - Role_Authorization sysname NULL, - Drop_Script nvarchar(max) NULL, - Create_Script nvarchar(max) NULL - ) - - -- Add insert statement to @sql - SET @sql = N'INSERT INTO #DBPrincipals ' + NCHAR(13) + - @sql - -- Declare a READ_ONLY cursor to loop through the databases DECLARE cur_DBList CURSOR READ_ONLY @@ -355,32 +388,29 @@ ELSE CLOSE cur_DBList DEALLOCATE cur_DBList - SELECT * FROM #DBPrincipals - DROP TABLE #DBPrincipals END ELSE EXEC sp_executesql @sql, N'@Principal sysname, @Role sysname, @Type nvarchar(30), @ObjectName sysname, @Permission sysname, @LoginName sysname', @Principal, @Role, @Type, @ObjectName, @Permission, @LoginName - +END --========================================================================= -- Database Role Members -SET @sql = - @use + +SET @sql = N'SELECT ' + CASE WHEN @DBName = 'All' THEN N'@AllDBNames' ELSE N'''' + @DBName + N'''' END + N' AS DBName,' + - N' Users.name AS UserName, Roles.name AS RoleName, ' + NCHAR(13) + + N' Users.principal_id AS UserPrincipalId, Users.name AS UserName, Roles.name AS RoleName, ' + NCHAR(13) + CASE WHEN @DBName = 'All' THEN N' ''USE '' + QUOTENAME(@AllDBNames) + ''; '' + ' + NCHAR(13) ELSE N'' END + N' CASE WHEN Users.is_fixed_role = 0 AND Users.name <> ''dbo'' THEN ' + NCHAR(13) + N' ''EXEC sp_droprolemember @rolename = ''+QUOTENAME(Roles.name' + @Collation + N','''''''')+'', @membername = ''+QUOTENAME(CASE WHEN Users.name = ''dbo'' THEN NULL ELSE Users.name END' + @Collation + - N','''''''')+'';'' END AS Drop_Script, ' + NCHAR(13) + + N','''''''')+'';'' END AS DropScript, ' + NCHAR(13) + CASE WHEN @DBName = 'All' THEN N' ''USE '' + QUOTENAME(@AllDBNames) + ''; '' + ' + NCHAR(13) ELSE N'' END + N' CASE WHEN Users.is_fixed_role = 0 AND Users.name <> ''dbo'' THEN ' + NCHAR(13) + N' ''EXEC sp_addrolemember @rolename = ''+QUOTENAME(Roles.name' + @Collation + N','''''''')+'', @membername = ''+QUOTENAME(CASE WHEN Users.name = ''dbo'' THEN NULL ELSE Users.name END' + @Collation + - N','''''''')+'';'' END AS Add_Script ' + NCHAR(13) + + N','''''''')+'';'' END AS AddScript ' + NCHAR(13) + N'FROM sys.database_role_members RoleMembers ' + NCHAR(13) + N'JOIN sys.database_principals Users ' + NCHAR(13) + N' ON RoleMembers.member_principal_id = Users.principal_id ' + NCHAR(13) + @@ -459,31 +489,32 @@ IF @IncludeMSShipped = 0 SET @sql = @sql + NCHAR(13) + N' AND Users.is_fixed_role = 0 ' + NCHAR(13) + ' AND Users.name NOT IN (''dbo'',''public'',''INFORMATION_SCHEMA'',''guest'',''sys'') ' -IF LEN(@Role) > 0 - SET @sql = @sql + NCHAR(13) + - N'ORDER BY Roles.name, Users.name ' -ELSE - SET @sql = @sql + NCHAR(13) + - N'ORDER BY Users.name, Roles.name ' - IF @Print = 1 - PRINT N'-- Database Role Members' + NCHAR(13) + CAST(@sql AS nvarchar(max)) + NCHAR(13) + NCHAR(13) +BEGIN + PRINT N'-- Database Role Members' + PRINT CAST(@sql AS nvarchar(max)) + PRINT '' -- Spacing before the next print + PRINT '' +END ELSE +BEGIN + IF object_id('tempdb..##DBRoles') IS NOT NULL + DROP TABLE ##DBRoles + + -- Create temp table to store the data in + CREATE TABLE ##DBRoles ( + DBName sysname NULL, + UserPrincipalId int NULL, + UserName sysname NULL, + RoleName sysname NULL, + DropScript nvarchar(max) NULL, + AddScript nvarchar(max) NULL + ) + + SET @sql = @use + NCHAR(13) + 'INSERT INTO ##DBRoles ' + NCHAR(13) + @sql + IF @DBName = 'All' BEGIN - -- Create temp table to store the data in - CREATE TABLE #DBRoles ( - DBName sysname NULL, - UserName sysname NULL, - RoleName sysname NULL, - Drop_Script nvarchar(max) NULL, - Add_Script nvarchar(max) NULL - ) - - -- Add insert statement to @sql - SET @sql = 'INSERT INTO #DBRoles ' + NCHAR(13) + - @sql - -- Declare a READ_ONLY cursor to loop through the databases DECLARE cur_DBList CURSOR READ_ONLY @@ -508,13 +539,12 @@ ELSE CLOSE cur_DBList DEALLOCATE cur_DBList - SELECT * FROM #DBRoles - DROP TABLE #DBRoles END ELSE EXEC sp_executesql @sql, N'@Principal sysname, @Role sysname, @Type nvarchar(30), @ObjectName sysname, @Permission sysname, @LoginName sysname', @Principal, @Role, @Type, @ObjectName, @Permission, @LoginName +END --========================================================================= -- Database & object Permissions @@ -619,7 +649,7 @@ SET @ObjectList = @ObjectList + N' SELECT NULL AS SchemaName, ' + NCHAR(13) + N' name ' + @Collation + N' AS name, ' + NCHAR(13) + N' symmetric_key_id AS id, ' + NCHAR(13) + - N' ''SYMMETRIC_KEY'' AS class_desc,' + NCHAR(13) + + N' ''SYMMETRIC_KEYS'' AS class_desc,' + NCHAR(13) + N' ''SYMMETRIC KEY'' AS class ' + NCHAR(13) + N' FROM sys.symmetric_keys' + NCHAR(13) + N' UNION ALL' + NCHAR(13) + @@ -640,7 +670,7 @@ SET @ObjectList = @ObjectList + SET @sql = N'SELECT ' + CASE WHEN @DBName = 'All' THEN N'@AllDBNames' ELSE N'''' + @DBName + N'''' END + N' AS DBName,' + NCHAR(13) + - N' Grantee.name AS Grantee_Name, Grantor.name AS Grantor_Name, ' + NCHAR(13) + + N' Grantee.principal_id AS GranteePrincipalId, Grantee.name AS GranteeName, Grantor.name AS GrantorName, ' + NCHAR(13) + N' Permission.class_desc, Permission.permission_name, ' + NCHAR(13) + N' ObjectList.name AS ObjectName, ' + NCHAR(13) + N' ObjectList.SchemaName, ' + NCHAR(13) + @@ -656,7 +686,7 @@ SET @ObjectList = @ObjectList + N' CASE WHEN ObjectList.SchemaName + ObjectList.name IS NULL THEN '''' ELSE ''.'' END + ' + NCHAR(13) + N' ISNULL(QUOTENAME(ObjectList.name),'''') ' + NCHAR(13) + N' ' + @Collation + ' + '' '' ELSE '''' END + ' + NCHAR(13) + - N' '' FROM '' + QUOTENAME(Grantee.name' + @Collation + N') + ''; '' END AS Revoke_Statement, ' + NCHAR(13) + + N' '' FROM '' + QUOTENAME(Grantee.name' + @Collation + N') + ''; '' END AS RevokeScript, ' + NCHAR(13) + N' CASE WHEN Grantee.is_fixed_role = 0 AND Grantee.name <> ''dbo'' THEN ' + NCHAR(13) + CASE WHEN @DBName = 'All' THEN N' ''USE '' + QUOTENAME(@AllDBNames) + ''; '' + ' + NCHAR(13) ELSE N'' END + N' CASE WHEN Permission.[state] = ''W'' THEN ''GRANT'' ELSE Permission.state_desc' + @Collation + @@ -670,7 +700,7 @@ SET @ObjectList = @ObjectList + N' ' + @Collation + N' + '' '' ELSE '''' END + ' + NCHAR(13) + N' '' TO '' + QUOTENAME(Grantee.name' + @Collation + N') + '' '' + ' + NCHAR(13) + N' CASE WHEN Permission.[state] = ''W'' THEN '' WITH GRANT OPTION '' ELSE '''' END + ' + NCHAR(13) + - N' '' AS ''+ QUOTENAME(Grantor.name' + @Collation + N')+'';'' END AS Grant_Statement ' + NCHAR(13) + + N' '' AS ''+ QUOTENAME(Grantor.name' + @Collation + N')+'';'' END AS GrantScript ' + NCHAR(13) + N'FROM sys.database_permissions Permission ' + NCHAR(13) + N'JOIN sys.database_principals Grantee ' + NCHAR(13) + N' ON Permission.grantee_principal_id = Grantee.principal_id ' + NCHAR(13) + @@ -725,41 +755,40 @@ IF @IncludeMSShipped = 0 SET @sql = @sql + NCHAR(13) + N' AND Grantee.is_fixed_role = 0 ' + NCHAR(13) + ' AND Grantee.name NOT IN (''dbo'',''public'',''INFORMATION_SCHEMA'',''guest'',''sys'') ' -IF LEN(@ObjectName) > 0 - SET @sql = @sql + NCHAR(13) + - N'ORDER BY ObjectList.name, Grantee.name ' -ELSE - SET @sql = @sql + NCHAR(13) + - N'ORDER BY Grantee.name, ObjectList.name ' - IF @Print = 1 BEGIN - SET @sql = @use+@ObjectList+@sql - PRINT '-- Database & object Permissions' + PRINT '-- Database & object Permissions' + PRINT CAST(@use AS nvarchar(max)) + PRINT CAST(@ObjectList AS nvarchar(max)) PRINT CAST(@sql AS nvarchar(max)) END ELSE +BEGIN + IF object_id('tempdb..##DBPermissions') IS NOT NULL + DROP TABLE ##DBPermissions + + -- Create temp table to store the data in + CREATE TABLE ##DBPermissions ( + DBName sysname NULL, + GranteePrincipalId int NULL, + GranteeName sysname NULL, + GrantorName sysname NULL, + class_desc nvarchar(60) NULL, + permission_name nvarchar(128) NULL, + ObjectName sysname NULL, + SchemaName sysname NULL, + state_desc nvarchar(60) NULL, + RevokeScript nvarchar(max) NULL, + GrantScript nvarchar(max) NULL + ) + + -- Add insert statement to @sql + SET @sql = @use + @ObjectList + + N'INSERT INTO ##DBPermissions ' + NCHAR(13) + + @sql + IF @DBName = 'All' BEGIN - -- Create temp table to store the data in - CREATE TABLE #DBPermissions ( - DBName sysname NULL, - Grantee_Name sysname NULL, - Grantor_Name sysname NULL, - class_desc nvarchar(60) NULL, - permission_name nvarchar(128) NULL, - ObjectName sysname NULL, - SchemaName sysname NULL, - state_desc nvarchar(60) NULL, - Revoke_Script nvarchar(max) NULL, - Grant_Script nvarchar(max) NULL - ) - - -- Add insert statement to @sql - SET @sql = @use + @ObjectList + - N'INSERT INTO #DBPermissions ' + NCHAR(13) + - @sql - -- Declare a READ_ONLY cursor to loop through the databases DECLARE cur_DBList CURSOR READ_ONLY @@ -784,14 +813,86 @@ ELSE CLOSE cur_DBList DEALLOCATE cur_DBList - SELECT * FROM #DBPermissions - DROP TABLE #DBPermissions END ELSE BEGIN - SET @sql = @use + @ObjectList + @sql EXEC sp_executesql @sql, N'@Principal sysname, @Role sysname, @Type nvarchar(30), @ObjectName sysname, @Permission sysname, @LoginName sysname', @Principal, @Role, @Type, @ObjectName, @Permission, @LoginName END +END + +IF @Print <> 1 +BEGIN + IF @Output = 'None' + PRINT '' + ELSE IF @Output = 'CreateOnly' + BEGIN + SELECT CreateScript FROM ##DBPrincipals WHERE CreateScript IS NOT NULL + SELECT AddScript FROM ##DBRoles WHERE AddScript IS NOT NULL + SELECT GrantScript FROM ##DBPermissions WHERE GrantScript IS NOT NULL + END + ELSE IF @Output = 'DropOnly' + BEGIN + SELECT DropScript FROM ##DBPrincipals WHERE DropScript IS NOT NULL + SELECT DropScript FROM ##DBRoles WHERE DropScript IS NOT NULL + SELECT RevokeScript FROM ##DBPermissions WHERE RevokeScript IS NOT NULL + END + ELSE IF @Output = 'ScriptOnly' + BEGIN + SELECT DropScript, CreateScript FROM ##DBPrincipals WHERE DropScript IS NOT NULL OR CreateScript IS NOT NULL + SELECT DropScript, AddScript FROM ##DBRoles WHERE DropScript IS NOT NULL OR AddScript IS NOT NULL + SELECT RevokeScript, GrantScript FROM ##DBPermissions WHERE RevokeScript IS NOT NULL OR GrantScript IS NOT NULL + END + ELSE IF @Output = 'Report' + BEGIN + SELECT DBName, DBPrincipal, SrvPrincipal, type, type_desc, + STUFF((SELECT ', ' + ##DBRoles.RoleName + FROM ##DBRoles + WHERE ##DBPrincipals.DBName = ##DBRoles.DBName + AND ##DBPrincipals.DBPrincipalId = ##DBRoles.UserPrincipalId + ORDER BY ##DBRoles.RoleName + FOR XML PATH(''),TYPE).value('.','VARCHAR(MAX)') + , 1, 2, '') AS RoleMembership, + STUFF((SELECT ', ' + ##DBPermissions.state_desc + ' ' + ##DBPermissions.permission_name + ' on ' + + ISNULL('OBJECT:'+##DBPermissions.ObjectName, 'DATABASE:'+##DBPermissions.DBName) + FROM ##DBPermissions + WHERE ##DBPrincipals.DBName = ##DBPermissions.DBName + AND ##DBPrincipals.DBPrincipalId = ##DBPermissions.GranteePrincipalId + ORDER BY ##DBPermissions.state_desc, ISNULL(##DBPermissions.ObjectName, ##DBPermissions.DBName), ##DBPermissions.permission_name + FOR XML PATH(''),TYPE).value('.','VARCHAR(MAX)') + , 1, 2, '') AS DirectPermissions + FROM ##DBPrincipals + ORDER BY DBName, type, DBPrincipal + END + ELSE -- 'Default' or no match + BEGIN + SELECT DBName, DBPrincipal, SrvPrincipal, type, type_desc, default_schema_name, + create_date, modify_date, is_fixed_role, RoleAuthorization, sid, + DropScript, CreateScript + FROM ##DBPrincipals ORDER BY DBName, DBPrincipal + IF LEN(@Role) > 0 + SELECT DBName, UserName, RoleName, DropScript, AddScript + FROM ##DBRoles ORDER BY DBName, RoleName, UserName + ELSE + SELECT DBName, UserName, RoleName, DropScript, AddScript + FROM ##DBRoles ORDER BY DBName, UserName, RoleName + + IF LEN(@ObjectName) > 0 + SELECT DBName, GranteeName, GrantorName, class_desc, permission_name, ObjectName, + SchemaName, state_desc, RevokeScript, GrantScript + FROM ##DBPermissions ORDER BY DBName, ObjectName, GranteeName + ELSE + SELECT DBName, GranteeName, GrantorName, class_desc, permission_name, ObjectName, + SchemaName, state_desc, RevokeScript, GrantScript + FROM ##DBPermissions ORDER BY DBName, GranteeName, ObjectName + END + + IF @DropTempTables = 1 + BEGIN + DROP TABLE ##DBPrincipals + DROP TABLE ##DBRoles + DROP TABLE ##DBPermissions + END +END GO diff --git a/Stored_Procedure/sp_Defrag_Indexes.sql b/Stored_Procedure/dbo.sp_Defrag_Indexes.sql similarity index 100% rename from Stored_Procedure/sp_Defrag_Indexes.sql rename to Stored_Procedure/dbo.sp_Defrag_Indexes.sql diff --git a/Stored_Procedure/dbo.sp_Depends.sql b/Stored_Procedure/dbo.sp_Depends.sql new file mode 100644 index 00000000..239dcdd0 --- /dev/null +++ b/Stored_Procedure/dbo.sp_Depends.sql @@ -0,0 +1,153 @@ +IF OBJECT_ID('dbo.sp_Depends', 'P') IS NULL +EXECUTE ('CREATE PROCEDURE dbo.sp_Depends AS SELECT 1'); +GO + +ALTER PROCEDURE dbo.sp_Depends( + @objectName SYSNAME = N'' + , @objectClass NVARCHAR(60) = N'OBJECT' + , @debug BIT = 0 +) +AS +/* + Program: dbo.sp_depends_v2 + Developer: Manjuke Fernando + Date: 06.07.2018 +*/ +BEGIN + SET NOCOUNT ON; + + DECLARE @Sql AS NVARCHAR(MAX) = N''; + + IF OBJECT_ID(@objectName) IS NULL + THROW 50001, 'Object with @objectName is not exists in current database!', 1 + ELSE + IF @debug = 1 PRINT('-- OBJECT_ID = ' + CAST(OBJECT_ID(@objectName) AS NVARCHAR(50))); + + BEGIN TRY + IF @debug = 1 + SET @Sql = N'DECLARE @RefObjectName SYSNAME = N''' + @objectName + ''';' + CHAR(13) + + N'DECLARE @objectClass NVARCHAR(60) = N''' + @objectClass + ''';' + CHAR(13); + + SET @Sql = @Sql + + N'SELECT CONCAT(sch.[name], ''.'', Obj.[name]) AS [name] + ,(CASE Obj.type + WHEN ''C'' THEN ''CHECK constraint'' + WHEN ''D'' THEN ''DEFAULT (constraint or stand-alone)'' + WHEN ''F'' THEN ''FOREIGN KEY constraint'' + WHEN ''PK'' THEN ''PRIMARY KEY constraint'' + WHEN ''R'' THEN ''Rule (old-style, stand-alone)'' + WHEN ''TA'' THEN ''Assembly (CLR-integration) trigger'' + WHEN ''TR'' THEN ''SQL trigger'' + WHEN ''UQ'' THEN ''UNIQUE constraint'' + WHEN ''AF'' THEN ''Aggregate function (CLR)'' + WHEN ''C'' THEN ''CHECK constraint'' + WHEN ''D'' THEN ''DEFAULT (constraint or stand-alone)'' + WHEN ''F'' THEN ''FOREIGN KEY constraint'' + WHEN ''FN'' THEN ''SQL scalar function'' + WHEN ''FS'' THEN ''Assembly (CLR) scalar-function'' + WHEN ''FT'' THEN ''Assembly (CLR) table-valued function'' + WHEN ''IF'' THEN ''SQL inline table-valued function'' + WHEN ''IT'' THEN ''Internal table'' + WHEN ''P'' THEN ''SQL Stored Procedure'' + WHEN ''PC'' THEN ''Assembly (CLR) stored-procedure'' + WHEN ''PG'' THEN ''Plan guide'' + WHEN ''PK'' THEN ''PRIMARY KEY constraint'' + WHEN ''R'' THEN ''Rule (old-style, stand-alone)'' + WHEN ''RF'' THEN ''Replication-filter-procedure'' + WHEN ''S'' THEN ''System base TABLE'' + WHEN ''SN'' THEN ''Synonym'' + WHEN ''SO'' THEN ''Sequence OBJECT'' + WHEN ''U'' THEN ''Table (user-defined)'' + WHEN ''V'' THEN ''VIEW'' + WHEN ''SQ'' THEN ''Service queue'' + WHEN ''TA'' THEN ''Assembly (CLR) DML trigger'' + WHEN ''TF'' THEN ''SQL table-valued-function'' + WHEN ''TR'' THEN ''SQL DML trigger'' + WHEN ''TT'' THEN ''Table type'' + WHEN ''UQ'' THEN ''UNIQUE CONSTRAINT'' + WHEN ''X'' THEN ''Extended stored procedure'' + ELSE ''Undefined'' + END) AS [type] + , Obj.create_date + , Obj.modify_date + , src.referenced_minor_name AS [column] + , IIF(src.is_selected = 1, ''yes'', ''no'') AS is_selected + , IIF(src.is_updated = 1, ''yes'', ''no'') AS is_updated + , IIF(src.is_select_all = 1, ''yes'', ''no'') AS is_select_all + --, IIF(src.is_insert_all = 1, ''yes'', ''no'') AS is_insert_all + FROM + sys.dm_sql_referenced_entities (@RefObjectName, @objectClass) AS src + JOIN sys.objects AS Obj ON src.referenced_id = Obj.[object_id] + JOIN sys.schemas AS sch ON sch.[schema_id] = Obj.[schema_id] + -- WHERE 1=1 + -- AND src.referenced_minor_name IS NOT NULL + ; + + SELECT CONCAT(Src.referencing_schema_name, ''.'', Src.referencing_entity_name) AS [name] + , (CASE Obj.type + WHEN ''C'' THEN ''CHECK constraint'' + WHEN ''D'' THEN ''DEFAULT (constraint or stand-alone)'' + WHEN ''F'' THEN ''FOREIGN KEY constraint'' + WHEN ''PK'' THEN ''PRIMARY KEY constraint'' + WHEN ''R'' THEN ''Rule (old-style, stand-alone)'' + WHEN ''TA'' THEN ''Assembly (CLR-integration) trigger'' + WHEN ''TR'' THEN ''SQL trigger'' + WHEN ''UQ'' THEN ''UNIQUE constraint'' + WHEN ''AF'' THEN ''Aggregate function (CLR)'' + WHEN ''C'' THEN ''CHECK constraint'' + WHEN ''D'' THEN ''DEFAULT (constraint or stand-alone)'' + WHEN ''F'' THEN ''FOREIGN KEY constraint'' + WHEN ''FN'' THEN ''SQL scalar function'' + WHEN ''FS'' THEN ''Assembly (CLR) scalar-function'' + WHEN ''FT'' THEN ''Assembly (CLR) table-valued function'' + WHEN ''IF'' THEN ''SQL inline table-valued function'' + WHEN ''IT'' THEN ''Internal table'' + WHEN ''P'' THEN ''SQL Stored Procedure'' + WHEN ''PC'' THEN ''Assembly (CLR) stored-procedure'' + WHEN ''PG'' THEN ''Plan guide'' + WHEN ''PK'' THEN ''PRIMARY KEY constraint'' + WHEN ''R'' THEN ''Rule (old-style, stand-alone)'' + WHEN ''RF'' THEN ''Replication-filter-procedure'' + WHEN ''S'' THEN ''System base TABLE'' + WHEN ''SN'' THEN ''Synonym'' + WHEN ''SO'' THEN ''Sequence OBJECT'' + WHEN ''U'' THEN ''Table (user-defined)'' + WHEN ''V'' THEN ''VIEW'' + WHEN ''SQ'' THEN ''Service queue'' + WHEN ''TA'' THEN ''Assembly (CLR) DML trigger'' + WHEN ''TF'' THEN ''SQL table-valued-function'' + WHEN ''TR'' THEN ''SQL DML trigger'' + WHEN ''TT'' THEN ''Table type'' + WHEN ''UQ'' THEN ''UNIQUE CONSTRAINT'' + WHEN ''X'' THEN ''Extended stored procedure'' + ELSE ''Undefined'' + END) AS [type] + , Obj.create_date + , Obj.modify_date + FROM sys.dm_sql_referencing_entities (@RefObjectName, @objectClass) AS Src + INNER JOIN sys.objects AS Obj ON Obj.[object_id] = Src.referencing_id;'; + + IF @debug = 1 + BEGIN + PRINT(SUBSTRING(@Sql, 1, 4000)); + PRINT(SUBSTRING(@Sql, 4001, 8000)); + END + ELSE + EXEC sp_executesql @Sql + , N'@RefObjectName AS SYSNAME, @objectClass AS NVARCHAR(60)' + , @RefObjectName = @objectName + , @objectClass = @objectClass; + + END TRY + + BEGIN CATCH + PRINT 'Error: ' + CONVERT(varchar(50), ERROR_NUMBER()) + + ', Severity: ' + CONVERT(varchar(5), ERROR_SEVERITY()) + + ', State: ' + CONVERT(varchar(5), ERROR_STATE()) + + ', Procedure: ' + ISNULL(ERROR_PROCEDURE(), '-') + + ', Line: ' + CONVERT(varchar(5), ERROR_LINE()) + + ', User name: ' + CONVERT(sysname, CURRENT_USER); + END CATCH + +END; +GO diff --git a/Stored_Procedure/dbo.sp_DropIndexes.sql b/Stored_Procedure/dbo.sp_DropIndexes.sql new file mode 100644 index 00000000..eb00acf7 --- /dev/null +++ b/Stored_Procedure/dbo.sp_DropIndexes.sql @@ -0,0 +1,79 @@ +IF OBJECT_ID('dbo.sp_DropIndexes', 'P') IS NULL + EXECUTE ('CREATE PROCEDURE dbo.sp_DropIndexes AS SELECT 1;'); +GO + + +ALTER PROCEDURE dbo.sp_DropIndexes( + @debug BIT = 1 +) +/* +.SYNOPSIS + Drop indexes and statistics + +.DESCRIPTION + Drop indexes and statistics + +.PARAMETER @debug + Just generate DROP statements withou executing it + +.EXAMPLE + EXEC sp_DropIndexes @debug = 0; + +.LICENSE MIT +Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +.NOTE + Author: Brent Ozar + Created date: 2017-04-11 + Version: 1.0 + + Author: Konstantin Taranov + Modified date: 2018-01-03 + Version: 1.1 +*/ +AS +SET NOCOUNT ON; + +CREATE TABLE #commands (ID INT IDENTITY(1,1) PRIMARY KEY CLUSTERED, Command NVARCHAR(2000)); +DECLARE @CurrentCommand NVARCHAR(2000); + +INSERT INTO #commands (Command) +SELECT 'DROP INDEX [' + i.name + '] ON [' + s.name + '].[' + t.name + ']' +FROM sys.tables t +INNER JOIN sys.indexes i ON t.object_id = i.object_id +INNER JOIN sys.schemas s ON t.schema_id = s.schema_id +WHERE i.type = 2; + +INSERT INTO #commands (Command) +SELECT 'DROP STATISTICS ' + SCHEMA_NAME([t].[schema_id]) + '.' + OBJECT_NAME([s].[object_id]) + '.' + s.[name] +FROM sys.[stats] AS [s] +JOIN sys.[tables] AS [t] +ON s.[object_id] = t.[object_id] +WHERE [s].[name] LIKE '[_]WA[_]Sys[_]%' +AND OBJECT_NAME([s].[object_id]) NOT LIKE 'sys%'; + +IF @debug = 1 +SELECT * FROM #commands; +ELSE +BEGIN +DECLARE result_cursor CURSOR FOR +SELECT Command FROM #commands; + +OPEN result_cursor +FETCH NEXT FROM result_cursor into @CurrentCommand +WHILE @@FETCH_STATUS = 0 +BEGIN + + EXEC(@CurrentCommand); + +FETCH NEXT FROM result_cursor into @CurrentCommand +END +--end loop + +--clean up +CLOSE result_cursor; +DEALLOCATE result_cursor; +END; +GO diff --git a/Stored_Procedure/sp_Example_RegisterAssembly_PDFCLR.sql b/Stored_Procedure/dbo.sp_Example_RegisterAssembly_PDFCLR.sql similarity index 100% rename from Stored_Procedure/sp_Example_RegisterAssembly_PDFCLR.sql rename to Stored_Procedure/dbo.sp_Example_RegisterAssembly_PDFCLR.sql diff --git a/Stored_Procedure/dbo.sp_FailedJobs.sql b/Stored_Procedure/dbo.sp_FailedJobs.sql new file mode 100644 index 00000000..2b1e5587 --- /dev/null +++ b/Stored_Procedure/dbo.sp_FailedJobs.sql @@ -0,0 +1,70 @@ +/* +Original link: https://sqlundercover.com/2017/06/16/undercover-toolbox-sp_failedjobs-the-quick-way-to-check-for-failed-agent-jobs +*/ + +USE [master] +GO + +/************************************************ +Author: Adrian Buckman +Date: 16/06/2017 +SQLUnderCover.com +************************************************/ + +CREATE PROCEDURE sp_FailedJobs +( +@FromDate DATETIME = NULL, +@ToDate DATETIME = NULL +) +AS +BEGIN + +IF @FromDate IS NULL BEGIN SET @FromDate = DATEADD(Minute,-720,GETDATE()) END +IF @ToDate IS NULL BEGIN SET @ToDate = GETDATE() END + +SELECT +Jobs.name, +JobHistory.step_id, +JobHistory.FailedRunDate, +CAST(JobHistory.LastError AS VARCHAR(250)) AS LastError +FROM msdb.dbo.sysjobs Jobs +CROSS APPLY (Select TOP 1 JobHistory.step_id,JobHistory.run_date, +CASE JobHistory.run_date WHEN 0 THEN NULL ELSE +convert(datetime, +stuff(stuff(cast(JobHistory.run_date as nchar(8)), 7, 0, '-'), 5, 0, '-') + N' ' + +stuff(stuff(substring(cast(1000000 + JobHistory.run_time as nchar(7)), 2, 6), 5, 0, ':'), 3, 0, ':'), +120) END AS [FailedRunDate] ,[Message] AS LastError +FROM msdb.dbo.sysjobhistory JobHistory +WHERE +Run_status = 0 +and Jobs.job_id = JobHistory.job_id +ORDER BY +[FailedRunDate] DESC,step_id DESC) JobHistory + +WHERE Jobs.enabled = 1 +AND JobHistory.FailedRunDate >= @FromDate AND JobHistory.FailedRunDate <= @ToDate +AND NOT EXISTS (SELECT [LastSuccessfulrunDate] +FROM( +SELECT CASE JobHistory.run_date WHEN 0 THEN NULL ELSE +convert(datetime, +stuff(stuff(cast(JobHistory.run_date as nchar(8)), 7, 0, '-'), 5, 0, '-') + N' ' + +stuff(stuff(substring(cast(1000000 + JobHistory.run_time as nchar(7)), 2, 6), 5, 0, ':'), 3, 0, ':'), +120) END AS [LastSuccessfulrunDate] +FROM msdb.dbo.sysjobhistory JobHistory +WHERE +Run_status = 1 +AND Jobs.job_id = JobHistory.job_id +) JobHistory2 +WHERE JobHistory2.[LastSuccessfulrunDate] > JobHistory.[FailedRunDate]) +AND NOT EXISTS (SELECT Session_id +From msdb.dbo.sysjobactivity JobActivity +where Jobs.job_id = JobActivity.job_id +AND stop_execution_date is null +AND SESSION_id = (Select MAX(Session_ID) From msdb.dbo.sysjobactivity JobActivity +where Jobs.job_id = JobActivity.job_id) +) +AND Jobs.Name != 'syspolicy_purge_history' + +ORDER BY name + +END diff --git a/Stored_Procedure/dbo.sp_FailedLogins.sql b/Stored_Procedure/dbo.sp_FailedLogins.sql new file mode 100644 index 00000000..320519b6 --- /dev/null +++ b/Stored_Procedure/dbo.sp_FailedLogins.sql @@ -0,0 +1,53 @@ +/* +Original link: https://sqlundercover.com/2017/06/06/undercover-toolbox-sp_failedlogins-capture-those-failed-logins-with-ease +Author: David Fowler +*/ + +USE [master] +GO + +CREATE PROCEDURE [dbo].[sp_FailedLogins] + +( +@FromDate DATETIME = NULL, +@ToDate DATETIME = NULL +) +AS + +BEGIN +--Failed login attempts in the last 60 minutes + +IF @FromDate IS NULL BEGIN SET @FromDate = DATEADD(MINUTE,-60,GETDATE()) END +IF @ToDate IS NULL BEGIN SET @ToDate = GETDATE() END + +IF OBJECT_ID('Tempdb..#Errors') IS NOT NULL +DROP TABLE #Errors + +CREATE TABLE #Errors +( +Logdate Datetime, +Processinfo Varchar(30), +Text Varchar (255) +) +INSERT INTO #Errors +EXEC xp_ReadErrorLog 0, 1, N'FAILED',N'login',@FromDate,@ToDate; + +SELECT +REPLACE(LoginErrors.Username,'''','') AS Username, +CAST(LoginErrors.Attempts AS NVARCHAR(6)) AS Attempts, +LatestDate.Logdate, +Latestdate.LastError +from ( +Select SUBSTRING(text,Patindex('%''%''%',Text),charindex('.',Text)-(Patindex('%''%''%',Text))) as Username,Count(*) AS Attempts +From #Errors Errors +GROUP BY SUBSTRING(text,Patindex('%''%''%',Text),charindex('.',Text)-(Patindex('%''%''%',Text))) +) LoginErrors +CROSS APPLY (SELECT TOP 1 Logdate,text as LastError +FROM #Errors LatestDate +where LoginErrors.Username = SUBSTRING(text,Patindex('%''%''%',Text),charindex('.',Text)-(Patindex('%''%''%',Text))) +ORDER by Logdate DESC) LatestDate + +Order by LoginErrors.Attempts DESC + +END +GO diff --git a/Stored_Procedure/dbo.sp_GenerateMerge.sql b/Stored_Procedure/dbo.sp_GenerateMerge.sql new file mode 100644 index 00000000..eceacb81 --- /dev/null +++ b/Stored_Procedure/dbo.sp_GenerateMerge.sql @@ -0,0 +1,670 @@ +--https://github.com/readyroll/generate-sql-merge/blob/master/master.dbo.sp_generate_merge.sql +SET NOCOUNT ON +GO + +PRINT 'Using Master database' +USE master +GO + +PRINT 'Checking for the existence of this procedure' +IF (SELECT OBJECT_ID('sp_generate_merge','P')) IS NOT NULL --means, the procedure already exists + BEGIN + PRINT 'Procedure already exists. So, dropping it' + DROP PROC sp_generate_merge + END +GO + +--Turn system object marking on + +CREATE PROC [sp_generate_merge] +( + @table_name varchar(776), -- The table/view for which the MERGE statement will be generated using the existing data + @target_table varchar(776) = NULL, -- Use this parameter to specify a different table name into which the data will be inserted/updated/deleted + @from nvarchar(max) = NULL, -- Use this parameter to filter the rows based on a filter condition (using WHERE) + @include_timestamp bit = 0, -- Specify 1 for this parameter, if you want to include the TIMESTAMP/ROWVERSION column's data in the MERGE statement + @debug_mode bit = 0, -- If @debug_mode is set to 1, the SQL statements constructed by this procedure will be printed for later examination + @schema varchar(64) = NULL, -- Use this parameter if you are not the owner of the table + @ommit_images bit = 0, -- Use this parameter to generate MERGE statement by omitting the 'image' columns + @ommit_identity bit = 0, -- Use this parameter to ommit the identity columns + @top int = NULL, -- Use this parameter to generate a MERGE statement only for the TOP n rows + @cols_to_include varchar(8000) = NULL, -- List of columns to be included in the MERGE statement + @cols_to_exclude varchar(8000) = NULL, -- List of columns to be excluded from the MERGE statement + @update_only_if_changed bit = 1, -- When 1, only performs an UPDATE operation if an included column in a matched row has changed. + @delete_if_not_matched bit = 1, -- When 1, deletes unmatched source rows from target, when 0 source rows will only be used to update existing rows or insert new. + @disable_constraints bit = 0, -- When 1, disables foreign key constraints and enables them after the MERGE statement + @ommit_computed_cols bit = 0, -- When 1, computed columns will not be included in the MERGE statement + @include_use_db bit = 1, -- When 1, includes a USE [DatabaseName] statement at the beginning of the generated batch + @results_to_text bit = 0, -- When 1, outputs results to grid/messages window. When 0, outputs MERGE statement in an XML fragment. + @include_rowsaffected bit = 1, -- When 1, a section is added to the end of the batch which outputs rows affected by the MERGE + @nologo bit = 0, -- When 1, the "About" comment is suppressed from output + @batch_separator VARCHAR(50) = 'GO' -- Batch separator to use +) +AS +BEGIN + +/*********************************************************************************************************** +Procedure: sp_generate_merge (Version 0.93) + (Adapted by Daniel Nolan for SQL Server 2008/2012) + +Adapted from: sp_generate_inserts (Build 22) + (Copyright 2002 Narayana Vyas Kondreddi. All rights reserved.) + +Purpose: To generate a MERGE statement from existing data, which will INSERT/UPDATE/DELETE data based + on matching primary key values in the source/target table. + + The generated statements can be executed to replicate the data in some other location. + + Typical use cases: + * Generate statements for static data tables, store the .SQL file in source control and use + it as part of your Dev/Test/Prod deployment. The generated statements are re-runnable, so + you can make changes to the file and migrate those changes between environments. + + * Generate statements from your Production tables and then run those statements in your + Dev/Test environments. Schedule this as part of a SQL Job to keep all of your environments + in-sync. + + * Enter test data into your Dev environment, and then generate statements from the Dev + tables so that you can always reproduce your test database with valid sample data. + + +Written by: Narayana Vyas Kondreddi + http://vyaskn.tripod.com + + Daniel Nolan + http://danere.com + @dan3r3 + +Acknowledgements (sp_generate_merge): + Nathan Skerl -- StackOverflow answer that provided a workaround for the output truncation problem + http://stackoverflow.com/a/10489767/266882 + + Bill Gibson -- Blog that detailed the static data table use case; the inspiration for this proc + http://blogs.msdn.com/b/ssdt/archive/2012/02/02/including-data-in-an-sql-server-database-project.aspx + + Bill Graziano -- Blog that provided the groundwork for MERGE statement generation + http://weblogs.sqlteam.com/billg/archive/2011/02/15/generate-merge-statements-from-a-table.aspx + +Acknowledgements (sp_generate_inserts): + Divya Kalra -- For beta testing + Mark Charsley -- For reporting a problem with scripting uniqueidentifier columns with NULL values + Artur Zeygman -- For helping me simplify a bit of code for handling non-dbo owned tables + Joris Laperre -- For reporting a regression bug in handling text/ntext columns + +Tested on: SQL Server 2008 (10.50.1600), SQL Server 2012 (11.0.2100) + +Date created: January 17th 2001 21:52 GMT +Modified: May 1st 2002 19:50 GMT +Last Modified: September 27th 2012 10:00 AEDT + +Email: dan@danere.com, vyaskn@hotmail.com + +NOTE: This procedure may not work with tables with a large number of columns (> 500). + Results can be unpredictable with huge text columns or SQL Server 2000's sql_variant data types + IMPORTANT: This procedure has not been extensively tested with international data (Extended characters or Unicode). If needed + you might want to convert the datatypes of character variables in this procedure to their respective unicode counterparts + like nchar and nvarchar + +Get Started: Ensure that your SQL client is configured to send results to grid (default SSMS behaviour). +This ensures that the generated MERGE statement can be output in full, getting around SSMS's 4000 nchar limit. +After running this proc, click the hyperlink within the single row returned to copy the generated MERGE statement. + +Example 1: To generate a MERGE statement for table 'titles': + + EXEC sp_generate_merge 'titles' + +Example 2: To generate a MERGE statement for 'titlesCopy' table from 'titles' table: + + EXEC sp_generate_merge 'titles', 'titlesCopy' + +Example 3: To generate a MERGE statement for table 'titles' that will unconditionally UPDATE matching rows + (ie. not perform a "has data changed?" check prior to going ahead with an UPDATE): + + EXEC sp_generate_merge 'titles', @update_only_if_changed = 0 + +Example 4: To generate a MERGE statement for 'titles' table for only those titles + which contain the word 'Computer' in them: + NOTE: Do not complicate the FROM or WHERE clause here. It's assumed that you are good with T-SQL if you are using this parameter + + EXEC sp_generate_merge 'titles', @from = "from titles where title like '%Computer%'" + +Example 5: To specify that you want to include TIMESTAMP column's data as well in the MERGE statement: + (By default TIMESTAMP column's data is not scripted) + + EXEC sp_generate_merge 'titles', @include_timestamp = 1 + +Example 6: To print the debug information: + + EXEC sp_generate_merge 'titles', @debug_mode = 1 + +Example 7: If the table is in a different schema to the default, use @schema parameter to specify the schema name + To use this option, you must have SELECT permissions on that table + + EXEC sp_generate_merge 'Nickstable', @schema = 'Nick' + +Example 8: To generate a MERGE statement for the rest of the columns excluding images + + EXEC sp_generate_merge 'imgtable', @ommit_images = 1 + +Example 9: To generate a MERGE statement excluding (omitting) IDENTITY columns: + (By default IDENTITY columns are included in the MERGE statement) + + EXEC sp_generate_merge 'mytable', @ommit_identity = 1 + +Example 10: To generate a MERGE statement for the TOP 10 rows in the table: + + EXEC sp_generate_merge 'mytable', @top = 10 + +Example 11: To generate a MERGE statement with only those columns you want: + + EXEC sp_generate_merge 'titles', @cols_to_include = "'title','title_id','au_id'" + +Example 12: To generate a MERGE statement by omitting certain columns: + + EXEC sp_generate_merge 'titles', @cols_to_exclude = "'title','title_id','au_id'" + +Example 13: To avoid checking the foreign key constraints while loading data with a MERGE statement: + + EXEC sp_generate_merge 'titles', @disable_constraints = 1 + +Example 14: To exclude computed columns from the MERGE statement: + + EXEC sp_generate_merge 'MyTable', @ommit_computed_cols = 1 + +***********************************************************************************************************/ + +SET NOCOUNT ON + + +--Making sure user only uses either @cols_to_include or @cols_to_exclude +IF ((@cols_to_include IS NOT NULL) AND (@cols_to_exclude IS NOT NULL)) + BEGIN + RAISERROR('Use either @cols_to_include or @cols_to_exclude. Do not use both the parameters at once',16,1) + RETURN -1 --Failure. Reason: Both @cols_to_include and @cols_to_exclude parameters are specified + END + + +--Making sure the @cols_to_include and @cols_to_exclude parameters are receiving values in proper format +IF ((@cols_to_include IS NOT NULL) AND (PATINDEX('''%''',@cols_to_include) = 0)) + BEGIN + RAISERROR('Invalid use of @cols_to_include property',16,1) + PRINT 'Specify column names surrounded by single quotes and separated by commas' + PRINT 'Eg: EXEC sp_generate_merge titles, @cols_to_include = "''title_id'',''title''"' + RETURN -1 --Failure. Reason: Invalid use of @cols_to_include property + END + +IF ((@cols_to_exclude IS NOT NULL) AND (PATINDEX('''%''',@cols_to_exclude) = 0)) + BEGIN + RAISERROR('Invalid use of @cols_to_exclude property',16,1) + PRINT 'Specify column names surrounded by single quotes and separated by commas' + PRINT 'Eg: EXEC sp_generate_merge titles, @cols_to_exclude = "''title_id'',''title''"' + RETURN -1 --Failure. Reason: Invalid use of @cols_to_exclude property + END + + +--Checking to see if the database name is specified along wih the table name +--Your database context should be local to the table for which you want to generate a MERGE statement +--specifying the database name is not allowed +IF (PARSENAME(@table_name,3)) IS NOT NULL + BEGIN + RAISERROR('Do not specify the database name. Be in the required database and just specify the table name.',16,1) + RETURN -1 --Failure. Reason: Database name is specified along with the table name, which is not allowed + END + + +--Checking for the existence of 'user table' or 'view' +--This procedure is not written to work on system tables +--To script the data in system tables, just create a view on the system tables and script the view instead +IF @schema IS NULL + BEGIN + IF NOT EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = @table_name AND (TABLE_TYPE = 'BASE TABLE' OR TABLE_TYPE = 'VIEW') AND TABLE_SCHEMA = SCHEMA_NAME()) + BEGIN + RAISERROR('User table or view not found.',16,1) + PRINT 'You may see this error if the specified table is not in your default schema (' + SCHEMA_NAME() + '). In that case use @schema parameter to specify the schema name.' + PRINT 'Make sure you have SELECT permission on that table or view.' + RETURN -1 --Failure. Reason: There is no user table or view with this name + END + END +ELSE + BEGIN + IF NOT EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = @table_name AND (TABLE_TYPE = 'BASE TABLE' OR TABLE_TYPE = 'VIEW') AND TABLE_SCHEMA = @schema) + BEGIN + RAISERROR('User table or view not found.',16,1) + PRINT 'Make sure you have SELECT permission on that table or view.' + RETURN -1 --Failure. Reason: There is no user table or view with this name + END + END + + +--Variable declarations +DECLARE @Column_ID int, + @Column_List varchar(8000), + @Column_List_For_Update varchar(8000), + @Column_List_For_Check varchar(8000), + @Column_Name varchar(128), + @Column_Name_Unquoted varchar(128), + @Data_Type varchar(128), + @Actual_Values nvarchar(max), --This is the string that will be finally executed to generate a MERGE statement + @IDN varchar(128), --Will contain the IDENTITY column's name in the table + @Target_Table_For_Output varchar(776), + @Source_Table_Qualified varchar(776) + + + +--Variable Initialization +SET @IDN = '' +SET @Column_ID = 0 +SET @Column_Name = '' +SET @Column_Name_Unquoted = '' +SET @Column_List = '' +SET @Column_List_For_Update = '' +SET @Column_List_For_Check = '' +SET @Actual_Values = '' + +--Variable Defaults +IF @schema IS NULL + BEGIN + SET @Target_Table_For_Output = QUOTENAME(COALESCE(@target_table, @table_name)) + END +ELSE + BEGIN + SET @Target_Table_For_Output = QUOTENAME(@schema) + '.' + QUOTENAME(COALESCE(@target_table, @table_name)) + END + +SET @Source_Table_Qualified = QUOTENAME(COALESCE(@schema,SCHEMA_NAME())) + '.' + QUOTENAME(@table_name) + +--To get the first column's ID +SELECT @Column_ID = MIN(ORDINAL_POSITION) +FROM INFORMATION_SCHEMA.COLUMNS (NOLOCK) +WHERE TABLE_NAME = @table_name +AND TABLE_SCHEMA = COALESCE(@schema, SCHEMA_NAME()) + + +--Loop through all the columns of the table, to get the column names and their data types +WHILE @Column_ID IS NOT NULL + BEGIN + SELECT @Column_Name = QUOTENAME(COLUMN_NAME), + @Column_Name_Unquoted = COLUMN_NAME, + @Data_Type = DATA_TYPE + FROM INFORMATION_SCHEMA.COLUMNS (NOLOCK) + WHERE ORDINAL_POSITION = @Column_ID + AND TABLE_NAME = @table_name + AND TABLE_SCHEMA = COALESCE(@schema, SCHEMA_NAME()) + + IF @cols_to_include IS NOT NULL --Selecting only user specified columns + BEGIN + IF CHARINDEX( '''' + SUBSTRING(@Column_Name,2,LEN(@Column_Name)-2) + '''',@cols_to_include) = 0 + BEGIN + GOTO SKIP_LOOP + END + END + + IF @cols_to_exclude IS NOT NULL --Selecting only user specified columns + BEGIN + IF CHARINDEX( '''' + SUBSTRING(@Column_Name,2,LEN(@Column_Name)-2) + '''',@cols_to_exclude) <> 0 + BEGIN + GOTO SKIP_LOOP + END + END + + --Making sure to output SET IDENTITY_INSERT ON/OFF in case the table has an IDENTITY column + IF (SELECT COLUMNPROPERTY( OBJECT_ID(@Source_Table_Qualified),SUBSTRING(@Column_Name,2,LEN(@Column_Name) - 2),'IsIdentity')) = 1 + BEGIN + IF @ommit_identity = 0 --Determing whether to include or exclude the IDENTITY column + SET @IDN = @Column_Name + ELSE + GOTO SKIP_LOOP + END + + --Making sure whether to output computed columns or not + IF @ommit_computed_cols = 1 + BEGIN + IF (SELECT COLUMNPROPERTY( OBJECT_ID(@Source_Table_Qualified),SUBSTRING(@Column_Name,2,LEN(@Column_Name) - 2),'IsComputed')) = 1 + BEGIN + GOTO SKIP_LOOP + END + END + + --Tables with columns of IMAGE data type are not supported for obvious reasons + IF(@Data_Type in ('image')) + BEGIN + IF (@ommit_images = 0) + BEGIN + RAISERROR('Tables with image columns are not supported.',16,1) + PRINT 'Use @ommit_images = 1 parameter to generate a MERGE for the rest of the columns.' + RETURN -1 --Failure. Reason: There is a column with image data type + END + ELSE + BEGIN + GOTO SKIP_LOOP + END + END + + --Determining the data type of the column and depending on the data type, the VALUES part of + --the MERGE statement is generated. Care is taken to handle columns with NULL values. Also + --making sure, not to lose any data from flot, real, money, smallmomey, datetime columns + SET @Actual_Values = @Actual_Values + + CASE + WHEN @Data_Type IN ('char','nchar') + THEN + 'COALESCE(''N'''''' + REPLACE(RTRIM(' + @Column_Name + '),'''''''','''''''''''')+'''''''',''NULL'')' + WHEN @Data_Type IN ('varchar','nvarchar') + THEN + 'COALESCE(''N'''''' + REPLACE(' + @Column_Name + ','''''''','''''''''''')+'''''''',''NULL'')' + WHEN @Data_Type IN ('datetime','smalldatetime','datetime2','date') + THEN + 'COALESCE('''''''' + RTRIM(CONVERT(char,' + @Column_Name + ',127))+'''''''',''NULL'')' + WHEN @Data_Type IN ('uniqueidentifier') + THEN + 'COALESCE(''N'''''' + REPLACE(CONVERT(char(36),RTRIM(' + @Column_Name + ')),'''''''','''''''''''')+'''''''',''NULL'')' + WHEN @Data_Type IN ('text') + THEN + 'COALESCE(''N'''''' + REPLACE(CONVERT(varchar(max),' + @Column_Name + '),'''''''','''''''''''')+'''''''',''NULL'')' + WHEN @Data_Type IN ('ntext') + THEN + 'COALESCE('''''''' + REPLACE(CONVERT(nvarchar(max),' + @Column_Name + '),'''''''','''''''''''')+'''''''',''NULL'')' + WHEN @Data_Type IN ('xml') + THEN + 'COALESCE('''''''' + REPLACE(CONVERT(nvarchar(max),' + @Column_Name + '),'''''''','''''''''''')+'''''''',''NULL'')' + WHEN @Data_Type IN ('binary','varbinary') + THEN + 'COALESCE(RTRIM(CONVERT(varchar(max),' + @Column_Name + ', 1)),''NULL'')' + WHEN @Data_Type IN ('timestamp','rowversion') + THEN + CASE + WHEN @include_timestamp = 0 + THEN + '''DEFAULT''' + ELSE + 'COALESCE(RTRIM(CONVERT(char,' + 'CONVERT(int,' + @Column_Name + '))),''NULL'')' + END + WHEN @Data_Type IN ('float','real','money','smallmoney') + THEN + 'COALESCE(LTRIM(RTRIM(' + 'CONVERT(char, ' + @Column_Name + ',2)' + ')),''NULL'')' + WHEN @Data_Type IN ('hierarchyid') + THEN + 'COALESCE(''hierarchyid::Parse(''+'''''''' + LTRIM(RTRIM(' + 'CONVERT(char, ' + @Column_Name + ')' + '))+''''''''+'')'',''NULL'')' + ELSE + 'COALESCE(LTRIM(RTRIM(' + 'CONVERT(char, ' + @Column_Name + ')' + ')),''NULL'')' + END + '+' + ''',''' + ' + ' + + --Generating the column list for the MERGE statement + SET @Column_List = @Column_List + @Column_Name + ',' + + --Don't update Primary Key or Identity columns + IF NOT EXISTS( + SELECT 1 + FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS pk , + INFORMATION_SCHEMA.KEY_COLUMN_USAGE c + WHERE pk.TABLE_NAME = @table_name + AND pk.TABLE_SCHEMA = COALESCE(@schema, SCHEMA_NAME()) + AND CONSTRAINT_TYPE = 'PRIMARY KEY' + AND c.TABLE_NAME = pk.TABLE_NAME + AND c.TABLE_SCHEMA = pk.TABLE_SCHEMA + AND c.CONSTRAINT_NAME = pk.CONSTRAINT_NAME + AND c.COLUMN_NAME = @Column_Name_Unquoted + ) + BEGIN + SET @Column_List_For_Update = @Column_List_For_Update + @Column_Name + ' = Source.' + @Column_Name + ', + ' + SET @Column_List_For_Check = @Column_List_For_Check + + CASE @Data_Type + WHEN 'text' THEN CHAR(10) + CHAR(9) + 'NULLIF(CAST(Source.' + @Column_Name + ' AS VARCHAR(MAX)), CAST(Target.' + @Column_Name + ' AS VARCHAR(MAX))) IS NOT NULL OR NULLIF(CAST(Target.' + @Column_Name + ' AS VARCHAR(MAX)), CAST(Source.' + @Column_Name + ' AS VARCHAR(MAX))) IS NOT NULL OR ' + WHEN 'ntext' THEN CHAR(10) + CHAR(9) + 'NULLIF(CAST(Source.' + @Column_Name + ' AS NVARCHAR(MAX)), CAST(Target.' + @Column_Name + ' AS NVARCHAR(MAX))) IS NOT NULL OR NULLIF(CAST(Target.' + @Column_Name + ' AS NVARCHAR(MAX)), CAST(Source.' + @Column_Name + ' AS NVARCHAR(MAX))) IS NOT NULL OR ' + ELSE CHAR(10) + CHAR(9) + 'NULLIF(Source.' + @Column_Name + ', Target.' + @Column_Name + ') IS NOT NULL OR NULLIF(Target.' + @Column_Name + ', Source.' + @Column_Name + ') IS NOT NULL OR ' + END + END + + SKIP_LOOP: --The label used in GOTO + + SELECT @Column_ID = MIN(ORDINAL_POSITION) + FROM INFORMATION_SCHEMA.COLUMNS (NOLOCK) + WHERE TABLE_NAME = @table_name + AND TABLE_SCHEMA = COALESCE(@schema, SCHEMA_NAME()) + AND ORDINAL_POSITION > @Column_ID + + END --Loop ends here! + + +--To get rid of the extra characters that got concatenated during the last run through the loop +IF LEN(@Column_List_For_Update) <> 0 + BEGIN + SET @Column_List_For_Update = ' ' + LEFT(@Column_List_For_Update,len(@Column_List_For_Update) - 4) + END + +IF LEN(@Column_List_For_Check) <> 0 + BEGIN + SET @Column_List_For_Check = LEFT(@Column_List_For_Check,len(@Column_List_For_Check) - 3) + END + +SET @Actual_Values = LEFT(@Actual_Values,len(@Actual_Values) - 6) + +SET @Column_List = LEFT(@Column_List,len(@Column_List) - 1) +IF LEN(LTRIM(@Column_List)) = 0 + BEGIN + RAISERROR('No columns to select. There should at least be one column to generate the output',16,1) + RETURN -1 --Failure. Reason: Looks like all the columns are ommitted using the @cols_to_exclude parameter + END + + +--Get the join columns ---------------------------------------------------------- +DECLARE @PK_column_list VARCHAR(8000) +DECLARE @PK_column_joins VARCHAR(8000) +SET @PK_column_list = '' +SET @PK_column_joins = '' + +SELECT @PK_column_list = @PK_column_list + '[' + c.COLUMN_NAME + '], ' +, @PK_column_joins = @PK_column_joins + 'Target.[' + c.COLUMN_NAME + '] = Source.[' + c.COLUMN_NAME + '] AND ' +FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS pk , +INFORMATION_SCHEMA.KEY_COLUMN_USAGE c +WHERE pk.TABLE_NAME = @table_name +AND pk.TABLE_SCHEMA = COALESCE(@schema, SCHEMA_NAME()) +AND CONSTRAINT_TYPE = 'PRIMARY KEY' +AND c.TABLE_NAME = pk.TABLE_NAME +AND c.TABLE_SCHEMA = pk.TABLE_SCHEMA +AND c.CONSTRAINT_NAME = pk.CONSTRAINT_NAME + +IF IsNull(@PK_column_list, '') = '' + BEGIN + RAISERROR('Table has no primary keys. There should at least be one column in order to have a valid join.',16,1) + RETURN -1 --Failure. Reason: looks like table doesn't have any primary keys + END + +SET @PK_column_list = LEFT(@PK_column_list, LEN(@PK_column_list) -1) +SET @PK_column_joins = LEFT(@PK_column_joins, LEN(@PK_column_joins) -4) + + +--Forming the final string that will be executed, to output the a MERGE statement +SET @Actual_Values = + 'SELECT ' + + CASE WHEN @top IS NULL OR @top < 0 THEN '' ELSE ' TOP ' + LTRIM(STR(@top)) + ' ' END + + '''' + + ' '' + CASE WHEN ROW_NUMBER() OVER (ORDER BY ' + @PK_column_list + ') = 1 THEN '' '' ELSE '','' END + ''(''+ ' + @Actual_Values + '+'')''' + ' ' + + COALESCE(@from,' FROM ' + @Source_Table_Qualified + ' (NOLOCK) ORDER BY ' + @PK_column_list) + + DECLARE @output VARCHAR(MAX) = '' + DECLARE @b CHAR(1) = CHAR(13) + +--Determining whether to ouput any debug information +IF @debug_mode =1 + BEGIN + SET @output += @b + '/*****START OF DEBUG INFORMATION*****' + SET @output += @b + '' + SET @output += @b + 'The primary key column list:' + SET @output += @b + @PK_column_list + SET @output += @b + '' + SET @output += @b + 'The INSERT column list:' + SET @output += @b + @Column_List + SET @output += @b + '' + SET @output += @b + 'The UPDATE column list:' + SET @output += @b + @Column_List_For_Update + SET @output += @b + '' + SET @output += @b + 'The SELECT statement executed to generate the MERGE:' + SET @output += @b + @Actual_Values + SET @output += @b + '' + SET @output += @b + '*****END OF DEBUG INFORMATION*****/' + SET @output += @b + '' + END + +IF (@include_use_db = 1) +BEGIN + SET @output += 'USE ' + DB_NAME() + SET @output += @b + @batch_separator + SET @output += @b + @b +END + +IF (@nologo = 0) +BEGIN + SET @output += @b + '--MERGE generated by ''sp_generate_merge'' stored procedure, Version 0.93' + SET @output += @b + '--Originally by Vyas (http://vyaskn.tripod.com): sp_generate_inserts (build 22)' + SET @output += @b + '--Adapted for SQL Server 2008/2012 by Daniel Nolan (http://danere.com)' + SET @output += @b + '' +END + +IF (@include_rowsaffected = 1) -- If the caller has elected not to include the "rows affected" section, let MERGE output the row count as it is executed. + SET @output += @b + 'SET NOCOUNT ON' + SET @output += @b + '' + + +--Determining whether to print IDENTITY_INSERT or not +IF (LEN(@IDN) <> 0) + BEGIN + SET @output += @b + 'SET IDENTITY_INSERT ' + @Target_Table_For_Output + ' ON' + SET @output += @b + '' + END + + +--Temporarily disable constraints on the target table +IF @disable_constraints = 1 AND (OBJECT_ID(@Source_Table_Qualified, 'U') IS NOT NULL) + BEGIN + SET @output += @b + 'ALTER TABLE ' + @Target_Table_For_Output + ' NOCHECK CONSTRAINT ALL' --Code to disable constraints temporarily + END + + +--Output the start of the MERGE statement, qualifying with the schema name only if the caller explicitly specified it +SET @output += @b + 'MERGE INTO ' + @Target_Table_For_Output + ' AS Target' +SET @output += @b + 'USING (VALUES' + + +--All the hard work pays off here!!! You'll get your MERGE statement, when the next line executes! +DECLARE @tab TABLE (ID INT NOT NULL PRIMARY KEY IDENTITY(1,1), val NVARCHAR(max)); +INSERT INTO @tab (val) +EXEC (@Actual_Values) + +IF (SELECT COUNT(*) FROM @tab) <> 0 -- Ensure that rows were returned, otherwise the MERGE statement will get nullified. +BEGIN + SET @output += CAST((SELECT @b + val FROM @tab ORDER BY ID FOR XML PATH('')) AS XML).value('.', 'VARCHAR(MAX)'); +END + +--Output the columns to correspond with each of the values above-------------------- +SET @output += @b + ') AS Source (' + @Column_List + ')' + + +--Output the join columns ---------------------------------------------------------- +SET @output += @b + 'ON (' + @PK_column_joins + ')' + + +--When matched, perform an UPDATE on any metadata columns only (ie. not on PK)------ +IF LEN(@Column_List_For_Update) <> 0 +BEGIN + SET @output += @b + 'WHEN MATCHED ' + CASE WHEN @update_only_if_changed = 1 THEN 'AND (' + @Column_List_For_Check + ') ' ELSE '' END + 'THEN' + SET @output += @b + ' UPDATE SET' + SET @output += @b + ' ' + LTRIM(@Column_List_For_Update) +END + + +--When NOT matched by target, perform an INSERT------------------------------------ +SET @output += @b + 'WHEN NOT MATCHED BY TARGET THEN'; +SET @output += @b + ' INSERT(' + @Column_List + ')' +SET @output += @b + ' VALUES(' + REPLACE(@Column_List, '[', 'Source.[') + ')' + + +--When NOT matched by source, DELETE the row +IF @delete_if_not_matched=1 BEGIN + SET @output += @b + 'WHEN NOT MATCHED BY SOURCE THEN ' + SET @output += @b + ' DELETE' +END; +SET @output += @b + ';' +SET @output += @b + @batch_separator + +--Display the number of affected rows to the user, or report if an error occurred--- +IF @include_rowsaffected = 1 +BEGIN + SET @output += @b + 'DECLARE @mergeError int' + SET @output += @b + ' , @mergeCount int' + SET @output += @b + 'SELECT @mergeError = @@ERROR, @mergeCount = @@ROWCOUNT' + SET @output += @b + 'IF @mergeError != 0' + SET @output += @b + ' BEGIN' + SET @output += @b + ' PRINT ''ERROR OCCURRED IN MERGE FOR ' + @Target_Table_For_Output + '. Rows affected: '' + CAST(@mergeCount AS VARCHAR(100)); -- SQL should always return zero rows affected'; + SET @output += @b + ' END' + SET @output += @b + 'ELSE' + SET @output += @b + ' BEGIN' + SET @output += @b + ' PRINT ''' + @Target_Table_For_Output + ' rows affected by MERGE: '' + CAST(@mergeCount AS VARCHAR(100));'; + SET @output += @b + ' END' + SET @output += @b + @batch_separator + SET @output += @b + @b +END + +--Re-enable the previously disabled constraints------------------------------------- +IF @disable_constraints = 1 AND (OBJECT_ID(@Source_Table_Qualified, 'U') IS NOT NULL) + BEGIN + SET @output += 'ALTER TABLE ' + @Target_Table_For_Output + ' CHECK CONSTRAINT ALL' --Code to enable the previously disabled constraints + SET @output += @b + @batch_separator + SET @output += @b + END + + +--Switch-off identity inserting------------------------------------------------------ +IF (LEN(@IDN) <> 0) + BEGIN + SET @output += 'SET IDENTITY_INSERT ' + @Target_Table_For_Output + ' OFF' + SET @output += @b + @batch_separator + SET @output += @b + END + +IF (@include_rowsaffected = 1) +BEGIN + SET @output += 'SET NOCOUNT OFF' + SET @output += @b + @batch_separator + SET @output += @b +END + +SET @output += @b + '' +SET @output += @b + '' + +IF @results_to_text = 1 +BEGIN + --output the statement to the Grid/Messages tab + SELECT @output; +END +ELSE +BEGIN + --output the statement as xml (to overcome SSMS 4000/8000 char limitation) + SELECT [processing-instruction(x)]=@output FOR XML PATH(''),TYPE; + PRINT 'MERGE statement has been wrapped in an XML fragment and output successfully.' + PRINT 'Ensure you have Results to Grid enabled and then click the hyperlink to copy the statement within the fragment.' + PRINT '' + PRINT 'If you would prefer to have results output directly (without XML) specify @results_to_text = 1, however please' + PRINT 'note that the results may be truncated by your SQL client to 4000 nchars.' +END + +SET NOCOUNT OFF +RETURN 0 --Success. We are done! +END + +GO + +PRINT 'Created the procedure' +GO + + +--Mark the proc as a system object to allow it to be called transparently from other databases +EXEC sp_MS_marksystemobject sp_generate_merge +GO + +PRINT 'Granting EXECUTE permission on sp_generate_merge to all users' +GRANT EXEC ON sp_generate_merge TO public + +SET NOCOUNT OFF +GO + +PRINT 'Done' diff --git a/Stored_Procedure/sp_IndexAnalysis-v11.sql b/Stored_Procedure/dbo.sp_IndexAnalysis-v11.sql similarity index 100% rename from Stored_Procedure/sp_IndexAnalysis-v11.sql rename to Stored_Procedure/dbo.sp_IndexAnalysis-v11.sql diff --git a/Stored_Procedure/dbo.sp_PrintString.sql b/Stored_Procedure/dbo.sp_PrintString.sql new file mode 100644 index 00000000..7fe8ccae --- /dev/null +++ b/Stored_Procedure/dbo.sp_PrintString.sql @@ -0,0 +1,94 @@ +IF OBJECT_ID('dbo.sp_PrintString', 'P') IS NULL + EXEC ('CREATE PROCEDURE dbo.sp_PrintString AS SELECT 1'); +GO + +ALTER PROCEDURE dbo.sp_PrintString( + @str NVARCHAR(MAX) +) +AS +/* +DECLARE @longStr NVARCHAR(MAX) = REPLICATE(N'R', 5000) + CAST(CHAR(13) AS NVARCHAR(MAX)) + REPLICATE(N'Я', 5000) + CAST(CHAR(13) + N'ё' AS NVARCHAR(MAX)); +PRINT('Microsoft PRINT with string truncating:'); +PRINT(@longStr); +PRINT('Right PRINT using dbo.sp_PrintString without string truncating:'); +EXEC dbo.sp_PrintString @str = @longStr; +*/ +BEGIN + DECLARE @line NVARCHAR(MAX) + , @startLocation INT + , @length INT + , @totalLength INT + , @current INT; + + SELECT @startLocation = 1 + ,@totalLength = DATALENGTH(@str) + ,@current = 1 + ,@length = 0 + + DECLARE @PrintLine NVARCHAR(MAX) = + N'DECLARE @pos int = 1 + WHILE @pos <= LEN(@line) + BEGIN + PRINT SUBSTRING(@line, @pos, 4000); + SET @pos = @pos + 4000; + END;' + + WHILE @current <= @totalLength + BEGIN + IF ( + SUBSTRING(@str, @current, 2) IN ( + CHAR(0x0D) + CHAR(0x0A) + ,CHAR(0x0A) + CHAR(0x0D) + ) + ) + BEGIN + IF @length <= 0 + PRINT ''; + ELSE + BEGIN -- line + SELECT @line = SUBSTRING(@str, @startLocation, @length); + + EXEC sp_executesql @PrintLine + ,N'@line NVARCHAR(max)' + ,@line; + END + + SELECT @startLocation = @current + 2 + , @current = @current + 2 + , @length = 0; + + CONTINUE; + END + ELSE IF ( + SUBSTRING(@str, @current, 1) IN ( + CHAR(0x0D) + ,CHAR(0x0A) + ) + ) + BEGIN + IF @length <= 0 + PRINT ''; + ELSE + BEGIN + SELECT @line = SUBSTRING(@str, @startLocation, @length); + + EXEC sp_executesql @PrintLine + ,N'@line NVARCHAR(max)' + ,@line; + END + + SELECT @startLocation = @current + 1 + ,@current = @current + 1 + ,@length = 0; + + CONTINUE; + END + + SELECT @current = @current + 1 + , @length = @length + 1; + END + + IF (@startLocation <= DATALENGTH(@str)) + PRINT SUBSTRING(@str, @startLocation, DATALENGTH(@str)); +END; +GO diff --git a/Stored_Procedure/sp_RestoreGene.sql b/Stored_Procedure/dbo.sp_RestoreGene.sql similarity index 100% rename from Stored_Procedure/sp_RestoreGene.sql rename to Stored_Procedure/dbo.sp_RestoreGene.sql diff --git a/Stored_Procedure/dbo.sp_RestoreScript.sql b/Stored_Procedure/dbo.sp_RestoreScript.sql new file mode 100644 index 00000000..6585a4a0 --- /dev/null +++ b/Stored_Procedure/dbo.sp_RestoreScript.sql @@ -0,0 +1,206 @@ +/* +Original link: https://sqlundercover.com/2017/06/29/undercover-toolbox-sp_restorescript-a-painless-way-to-generate-sql-server-database-restore-scripts + + +sp_RestoreScript 1.0 +Written By David Fowler +29 June 2017 +Generate a set of backup commands to restore a database(s) to a specified time + +Parameters +========== + +@DatabaseName - A comma delimited list of databases to restore - DEFAULT: Current Database + +@RestoreAsName - A comma delimited list of name to restore databases as, the number of should correspond to the number of + databases in @DatabaseName. + +@RestoreToDate- See @PointInTime for useage of @RestoreToDate. - DEFAULT: GETDATE() + +@FirstLogToRestore- If 'LogsOnly' restore option has been selected, this is the date of the first log to be restored. This + can't be left NULL if 'LogsOnly' has been selected. If any other option has been selected it wil be ignored + +@RestoreOptions- 'ToLog' - Script will generate statements including full, differential and log backups - DEFAULT + 'ToDiff' Script will only include full and differential backups + 'ToFull' Script will only include a full backup + 'LogsOnly' - Script will only include log backups between @FirstLogToRestore and @RestoreToDate + +@PointInTime - 1 - Script will restore to a point in time specified in @RestoreToDate + 0 - Script will to last backup before the date\time specified in @RestoreToDate - DEFAULT + +@WithMoveDataPath - WITH MOVE Path to move data files to. - DEFAULT: original path + +@WithMoveLogPath - WITH MOVE Path to move log files to. - DEFAULT:@ original path + +@Replace - 1 - Databases will be restored WITH REPLACE + 0 - Database won't be restored WITH REPLACE - DEFAULT + +@NoRecovery - 1 - Last file will be restored with NORECOVERY, leaving the database in 'restoring' state + 0 - Last file will be restored with RECOVERY and the database brought online - DEFAULT + +Full documentation and examples can be found at www.sqlundercover.com +*/ +USE MASTER +GO + +CREATE PROC sp_RestoreScript +( +@DatabaseName VARCHAR(3000) = NULL, +@RestoreAsName VARCHAR(3000) = NULL, +@RestoreToDate DATETIME = NULL, +@FirstLogToRestore DATETIME = NULL, +@RestoreOptions VARCHAR(11) = 'ToLog', +@PointInTime BIT = 0, +@WithMoveDataPath VARCHAR(3000) = NULL, +@WithMoveLogPath VARCHAR(3000) = NULL, +@Replace BIT = 0, +@NoRecovery BIT = 0 +) + +AS + +BEGIN + +DECLARE @WithMove VARCHAR(3000) + +SET NOCOUNT ON +--Check that @RestoreOptions is a valid value +IF @RestoreOptions NOT IN ('ToLog','ToDiff','ToFull','LogsOnly') +RAISERROR (N'Invalid Restore Option specified, please use ToLog, ToDiff, ToFull or LogsOnly' , 15, 1) + +--Check that both 'WithMove' parameters are either both null or both hold a value (why doens't SQL Server give us an XOR?) +IF ((@WithMoveDataPath IS NULL) AND (@WithMoveLogPath IS NOT NULL)) + OR + ((@WithMoveDataPath IS NOT NULL) AND (@WithMoveLogPath IS NULL)) +RAISERROR (N'The ''WithMove'' parameters either both must be NULL or both must hold a value', 15,1) + +--set compatibility mode +DECLARE @compatibility BIT + +--set compatibility to 1 if server version includes STRING_SPLIT +SELECT @compatibility = CASE + WHEN SERVERPROPERTY ('productversion') >= '13.0.4001.0' AND Compatibility_Level >= 130 THEN 1 + ELSE 0 + END +FROM sys.databases +WHERE name = DB_NAME() + +--drop temp tables +IF OBJECT_ID('tempdb..#BackupCommands') IS NOT NULL + DROP TABLE #BackupCommands +CREATE TABLE #BackupCommands +(backup_start_date DATETIME, DBName VARCHAR(255), command VARCHAR(1000)) + +IF OBJECT_ID('tempdb..#BackupCommandsFinal') IS NOT NULL + DROP TABLE #BackupCommandsFinal +CREATE TABLE #BackupCommandsFinal +(backup_start_date DATETIME, DBName VARCHAR(255), command VARCHAR(1000)) + +--remove any spaces in list of databases +SET @DatabaseName = REPLACE(@DatabaseName, ' ','') +SET @RestoreAsName = REPLACE(@RestoreAsName, ' ','') + +--@PointInTime can only be true if @RestoreOptions is either 'ToLog' or 'LogsOnly' +IF (@PointInTime = 1) AND (@RestoreOptions NOT IN ('ToLog','LogsOnly')) +BEGIN +RAISERROR (N'Point in time restore is not possible with selected restore options. @PointInTime has been changed to 0', 15,1) +SET @PointInTime = 0 +END + +--If @RestoreOptions is 'LogsOnly', a RestoreToDate value must be specified +IF (@RestoreOptions = 'LogsOnly') AND (@FirstLogToRestore IS NULL) +RAISERROR (N'When @RestoreOptions = LogsOnly, a @FirstLogToRestore date must be specified', 15,1) + +--Set default value for @RestoreToDate if unspecified +IF (@RestoreToDate IS NULL) +SET @RestoreToDate = GETDATE() + +--Set default value for @DatabaseName if unspecified +IF (@DatabaseName IS NULL) +SET @DatabaseName = DB_NAME() + +--Declare cursor containing database names +--if compatibility mode = 1 then it's safe to use STRING_SPLIT, otherwise use fn_SplitString +IF (@Compatibility = 1) +BEGIN + --raise an error if there's a mismatch in the number of databases in @DatabaseName and @RestoreAsName + IF ((SELECT COUNT(*) FROM STRING_SPLIT(@DatabaseName,',')) + != (SELECT COUNT(*) FROM STRING_SPLIT(@RestoreAsName,','))) + AND @RestoreAsName IS NOT NULL + RAISERROR (N'There is a mismatch in the number of databases in @DatabaseName and @RestoreAsName', 15,1) + + DECLARE DatabaseCur CURSOR FOR + SELECT SourceDatabase.value AS SourceDatabase,DestinationDatabase.value AS DestinationDatabase + FROM + (SELECT value, ROW_NUMBER() OVER (ORDER BY (SELECT 1)) RowNumber + FROM STRING_SPLIT(@DatabaseName,',') ) SourceDatabase + LEFT JOIN + (SELECT value, ROW_NUMBER() OVER (ORDER BY (SELECT 1)) RowNumber + FROM STRING_SPLIT(@RestoreAsName,',') ) DestinationDatabase + ON SourceDatabase.RowNumber = DestinationDatabase.RowNumber +END +ELSE BEGIN + --raise an error if there's a mismatch in the number of databases in @DatabaseName and @RestoreAsName + IF ((SELECT COUNT(*) FROM fn_SplitString(@DatabaseName,',')) + != (SELECT COUNT(*) FROM fn_SplitString(@RestoreAsName,','))) + AND @RestoreAsName IS NOT NULL + RAISERROR (N'There is a mismatch in the number of databases in @DatabaseName and @RestoreAsName', 15,1) + + SELECT SourceDatabase.StringElement AS SourceDatabase,DestinationDatabase.StringElement AS DestinationDatabase + FROM + (SELECT StringElement, ROW_NUMBER() OVER (ORDER BY (SELECT 1)) RowNumber + FROM fn_SplitString(@DatabaseName,',') ) SourceDatabase + LEFT JOIN + (SELECT StringElement, ROW_NUMBER() OVER (ORDER BY (SELECT 1)) RowNumber + FROM fn_SplitString(@RestoreAsName,',') ) DestinationDatabase + ON SourceDatabase.RowNumber = DestinationDatabase.RowNumber +END + +--open cursor +OPEN DatabaseCur +FETCH NEXT FROM DatabaseCur INTO @DatabaseName, @RestoreAsName + +WHILE @@FETCH_STATUS = 0 +BEGIN + + --Get last full backup for required timeframe + IF (@RestoreOptions IN ('PointInTime','ToLog','ToDiff','ToFull')) + BEGIN + INSERT INTO #BackupCommands + SELECT TOP 1 backupset.backup_start_date, @DatabaseName AS DBName, + 'RESTORE DATABASE ' + COALESCE(QUOTENAME(@RestoreAsName), QUOTENAME(@DatabaseName)) + ' FROM DISK = ''' + mediafamily.physical_device_name + ''' WITH NORECOVERY, FILE = ' + CAST(position AS VARCHAR) AS Command + FROM msdb.dbo.backupset backupset + INNER JOIN msdb.dbo.backupmediafamily mediafamily ON backupset.media_set_id = mediafamily.media_set_id + WHERE backupset.database_name = @DatabaseName + AND backupset.backup_start_date < @RestoreToDate AND backupset.type = 'D' ORDER BY backupset.backup_start_date DESC END --if Replace is set, add to statement IF @Replace = 1 BEGIN UPDATE #BackupCommands SET command = command + ', REPLACE' WHERE DBName = @DatabaseName END --if WithMove parameters are set, create WITH MOVE statements IF (@WithMoveDataPath IS NOT NULL) AND (@WithMoveLogPath IS NOT NULL) BEGIN --generate MOVE statement DECLARE @WithMoveCmd VARCHAR(3000) SET @WithMoveCmd = ',' SELECT @WithMoveCmd = @WithMoveCmd + STUFF((SELECT ',' + ' MOVE ''' + name + ''' TO ''' + REPLACE(physical_name,REVERSE(SUBSTRING(REVERSE(physical_name),CHARINDEX('\',REVERSE(physical_name),0), LEN(physical_name))),@WithMoveDataPath) + '''' FROM sys.master_files WHERE database_id = DB_ID(@DatabaseName) AND type_desc = 'ROWS' FOR XML PATH('')) ,1,1,'') SET @WithMoveCmd = @WithMoveCmd + ',' SELECT @WithMoveCmd = @WithMoveCmd + STUFF((SELECT ',' + 'MOVE ''' + name + ''' TO ''' + REPLACE(physical_name,REVERSE(SUBSTRING(REVERSE(physical_name),CHARINDEX('\',REVERSE(physical_name),0), LEN(physical_name))),@WithMoveLogPath) + '''' FROM sys.master_files WHERE database_id = DB_ID(@DatabaseName) AND type_desc = 'LOG' FOR XML PATH('')) ,1,1,'') --append MOVE statement to backup command UPDATE #BackupCommands SET command = command + @WithMoveCmd WHERE DBName = @DatabaseName END --Get last diff for required timeframe IF (@RestoreOptions IN ('PointInTime','ToLog','ToDiff')) BEGIN INSERT INTO #BackupCommands SELECT TOP 1 backupset.backup_start_date, @DatabaseName AS DBName, 'RESTORE DATABASE ' + COALESCE(QUOTENAME(@RestoreAsName), QUOTENAME(@DatabaseName)) + ' FROM DISK = ''' + mediafamily.physical_device_name + ''' WITH NORECOVERY, FILE = ' + CAST(position AS VARCHAR) FROM msdb.dbo.backupset backupset INNER JOIN msdb.dbo.backupmediafamily mediafamily ON backupset.media_set_id = mediafamily.media_set_id WHERE backupset.database_name = @DatabaseName AND backupset.backup_start_date > + (SELECT backup_start_date FROM #BackupCommands) + AND backupset.backup_start_date < @RestoreToDate AND backupset.type = 'I' ORDER BY backupset.backup_start_date DESC END --Get all log backups since last full or diff IF (@RestoreOptions IN ('ToLog','LogsOnly')) INSERT INTO #BackupCommands SELECT backupset.backup_start_date, @DatabaseName AS DBName, 'RESTORE LOG ' + COALESCE(QUOTENAME(@RestoreAsName), QUOTENAME(@DatabaseName)) + ' FROM DISK = ''' + mediafamily.physical_device_name + ''' WITH NORECOVERY, FILE = ' + CAST(position AS VARCHAR) FROM msdb.dbo.backupset backupset INNER JOIN msdb.dbo.backupmediafamily mediafamily ON backupset.media_set_id = mediafamily.media_set_id WHERE backupset.database_name = @DatabaseName AND backupset.backup_start_date > + (SELECT COALESCE(MAX(backup_start_date),@FirstLogToRestore) FROM #BackupCommands) + AND backupset.backup_start_date < @RestoreToDate AND backupset.type = 'L' ORDER BY backupset.backup_start_date DESC --Get point in time if enabled IF (@PointInTime = 1) AND (EXISTS (SELECT * FROM #BackupCommands)) BEGIN INSERT INTO #BackupCommands SELECT TOP 1 backupset.backup_start_date, @DatabaseName AS DBName, 'RESTORE LOG ' + COALESCE(QUOTENAME(@RestoreAsName), QUOTENAME(@DatabaseName)) + ' FROM DISK = ''' + mediafamily.physical_device_name + ''' WITH NORECOVERY, FILE = ' + CAST(position AS VARCHAR) + ', STOPAT = ''' + CAST(@RestoreToDate AS VARCHAR) + '''' AS Command FROM msdb.dbo.backupset backupset INNER JOIN msdb.dbo.backupmediafamily mediafamily ON backupset.media_set_id = mediafamily.media_set_id WHERE backupset.database_name = @DatabaseName AND backupset.backup_start_date > @RestoreToDate + AND backupset.type = 'L' + ORDER BY backupset.backup_start_date + END + + INSERT INTO #BackupCommandsFinal + SELECT * FROM #BackupCommands + + TRUNCATE TABLE #BackupCommands + + FETCH NEXT FROM DatabaseCur INTO @DatabaseName, @RestoreAsName +END + +CLOSE DatabaseCur +DEALLOCATE DatabaseCur + +IF @NoRecovery = 0 --if restore with no recovery is off, remove NORECOVERY from the last restore command +BEGIN + UPDATE #BackupCommandsFinal + SET command = REPLACE(command,'NORECOVERY','RECOVERY') + WHERE backup_start_date = (SELECT MAX(backup_start_date) FROM #BackupCommandsFinal) +END + +SELECT backup_start_date, DBName, command +FROM #BackupCommandsFinal +ORDER BY DBName,backup_start_date + +END diff --git a/Stored_Procedure/dbo.sp_SQLskills_ExposeColsInIndexLevels.sql b/Stored_Procedure/dbo.sp_SQLskills_ExposeColsInIndexLevels.sql new file mode 100644 index 00000000..b7f80413 --- /dev/null +++ b/Stored_Procedure/dbo.sp_SQLskills_ExposeColsInIndexLevels.sql @@ -0,0 +1,191 @@ +/*============================================================================ + File: sp_SQLskills_ExposeColsInIndexLevels + + Summary: This procedure lists columns in the key vs. those in the leaf level + of a nonclustered index. This is dependent on whether or not the + nonclustered is UNIQUE as well as whether or not the table has a + clustered index. It also changes based on whether or not the + clustering key is UNIQUE. + + Date: May 2010 + + Version: SQL Server 2005/2008 +------------------------------------------------------------------------------ + Written by Paul S. Randal and Kimberly L. Tripp, SQLskills.com + + For more scripts and sample code, check out + http://www.SQLskills.com + + This script is intended only as a supplement to demos and lectures + given by SQLskills instructors. + + THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF + ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED + TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A + PARTICULAR PURPOSE. +============================================================================*/ + +USE master +go + +if OBJECTPROPERTY(OBJECT_ID('sp_SQLskills_ExposeColsInIndexLevels'), 'IsProcedure') = 1 + drop procedure sp_SQLskills_ExposeColsInIndexLevels +go + +create procedure sp_SQLskills_ExposeColsInIndexLevels +( + @object_id int, + @index_id int, + @ColsInTree nvarchar(2126) OUTPUT, + @ColsInLeaf nvarchar(max) OUTPUT +) +AS +BEGIN + declare @nonclus_uniq int + , @column_id int + , @column_name nvarchar(260) + , @col_descending bit + , @colstr nvarchar (max); + + -- Get clustered index keys (id and name) + select sic.column_id, QUOTENAME(sc.name, N']') AS column_name, is_descending_key + into #clus_keys + from sys.index_columns AS sic + JOIN sys.columns AS sc + ON sic.column_id = sc.column_id AND sc.object_id = sic.object_id + where sic.[object_id] = @object_id + and [index_id] = 1; + + -- Get nonclustered index keys + select sic.column_id, sic.is_included_column, QUOTENAME(sc.name, N']') AS column_name, is_descending_key + into #nonclus_keys + from sys.index_columns AS sic + JOIN sys.columns AS sc + ON sic.column_id = sc.column_id + AND sc.object_id = sic.object_id + where sic.[object_id] = @object_id + and sic.[index_id] = @index_id; + + -- Is the nonclustered unique? + select @nonclus_uniq = is_unique + from sys.indexes + where [object_id] = @object_id + and [index_id] = @index_id; + + if (@nonclus_uniq = 0) + begin + -- Case 1: nonunique nonclustered index + + -- cursor for nonclus columns not included and + -- nonclus columns included but also clus keys + declare mycursor cursor for + select column_id, column_name, is_descending_key + from #nonclus_keys + where is_included_column = 0 + open mycursor; + fetch next from mycursor into @column_id, @column_name, @col_descending; + WHILE @@FETCH_STATUS = 0 + begin + select @colstr = ISNULL(@colstr, N'') + @column_name + CASE WHEN @col_descending = 1 THEN '(-)' ELSE N'' END + N', '; + fetch next from mycursor into @column_id, @column_name, @col_descending; + end + close mycursor; + deallocate mycursor; + + -- cursor over clus_keys if clustered + declare mycursor cursor for + select column_id, column_name, is_descending_key from #clus_keys + where column_id not in (select column_id from #nonclus_keys + where is_included_column = 0) + open mycursor; + fetch next from mycursor into @column_id, @column_name, @col_descending; + WHILE @@FETCH_STATUS = 0 + begin + select @colstr = ISNULL(@colstr, N'') + @column_name + CASE WHEN @col_descending = 1 THEN '(-)' ELSE N'' END + N', '; + fetch next from mycursor into @column_id, @column_name, @col_descending; + end + close mycursor; + deallocate mycursor; + + select @ColsInTree = substring(@colstr, 1, LEN(@colstr) -1); + + -- find columns not in the nc and not in cl - that are still left to be included. + declare mycursor cursor for + select column_id, column_name, is_descending_key from #nonclus_keys + where column_id not in (select column_id from #clus_keys UNION select column_id from #nonclus_keys where is_included_column = 0) + open mycursor; + fetch next from mycursor into @column_id, @column_name, @col_descending; + WHILE @@FETCH_STATUS = 0 + begin + select @colstr = ISNULL(@colstr, N'') + @column_name + CASE WHEN @col_descending = 1 THEN '(-)' ELSE N'' END + N', '; + fetch next from mycursor into @column_id, @column_name, @col_descending; + end + close mycursor; + deallocate mycursor; + + select @ColsInLeaf = substring(@colstr, 1, LEN(@colstr) -1); + + end + + -- Case 2: unique nonclustered + else + begin + -- cursor over nonclus_keys that are not includes + select @colstr = '' + declare mycursor cursor for + select column_id, column_name, is_descending_key from #nonclus_keys + where is_included_column = 0 + open mycursor; + fetch next from mycursor into @column_id, @column_name, @col_descending; + WHILE @@FETCH_STATUS = 0 + begin + select @colstr = ISNULL(@colstr, N'') + @column_name + CASE WHEN @col_descending = 1 THEN '(-)' ELSE N'' END + N', '; + fetch next from mycursor into @column_id, @column_name, @col_descending; + end + close mycursor; + deallocate mycursor; + + select @ColsInTree = substring(@colstr, 1, LEN(@colstr) -1); + + -- start with the @ColsInTree and add remaining columns not present... + declare mycursor cursor for + select column_id, column_name, is_descending_key from #nonclus_keys + WHERE is_included_column = 1; + open mycursor; + fetch next from mycursor into @column_id, @column_name, @col_descending; + WHILE @@FETCH_STATUS = 0 + begin + select @colstr = ISNULL(@colstr, N'') + @column_name + CASE WHEN @col_descending = 1 THEN '(-)' ELSE N'' END + N', '; + fetch next from mycursor into @column_id, @column_name, @col_descending; + end + close mycursor; + deallocate mycursor; + + -- get remaining clustered column as long as they're not already in the nonclustered + declare mycursor cursor for + select column_id, column_name, is_descending_key from #clus_keys + where column_id not in (select column_id from #nonclus_keys) + open mycursor; + fetch next from mycursor into @column_id, @column_name, @col_descending; + WHILE @@FETCH_STATUS = 0 + begin + select @colstr = ISNULL(@colstr, N'') + @column_name + CASE WHEN @col_descending = 1 THEN '(-)' ELSE N'' END + N', '; + fetch next from mycursor into @column_id, @column_name, @col_descending; + end + close mycursor; + deallocate mycursor; + + select @ColsInLeaf = substring(@colstr, 1, LEN(@colstr) -1); + select @colstr = '' + + end + -- Cleanup + drop table #clus_keys; + drop table #nonclus_keys; + +END; +GO + +exec sys.sp_MS_marksystemobject 'sp_SQLskills_ExposeColsInIndexLevels' +go + diff --git a/Stored_Procedure/dbo.sp_SQLskills_helpindex.sql b/Stored_Procedure/dbo.sp_SQLskills_helpindex.sql new file mode 100644 index 00000000..8bcc2d1e --- /dev/null +++ b/Stored_Procedure/dbo.sp_SQLskills_helpindex.sql @@ -0,0 +1,409 @@ +/*============================================================================ + File: sp_SQLskills_helpindex.sql + + Summary: So, what are the included columns?! Do you have a filter? + This is a MODIFIED sp_helpindex script that includes: + - Index IDs + - INCLUDEd columns + - Filtered index columns + - Leaf/tree details for rowstore indexes + - Columns defined for columnstore indexes + Additional details: + - whether or not the index is disabled + - Index usage stats + + Date: February 2016 + + Version: Works on 2008R2 - 2016 (requires: sp_SQLskills_ExposeColsInIndexLevels) +------------------------------------------------------------------------------ + Written by Kimberly L. Tripp, SYSolutions, Inc. + + For more scripts and sample code, check out + http://www.SQLskills.com + + This script is intended only as a supplement to demos and lectures + given by SQLskills instructors. + + THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF + ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED + TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A + PARTICULAR PURPOSE. +============================================================================*/ + +USE [master]; +GO + +IF OBJECTPROPERTY(OBJECT_ID(N'sp_SQLskills_helpindex') + , N'IsProcedure') = 1 + DROP PROCEDURE [dbo].[sp_SQLskills_helpindex]; +GO + +CREATE PROCEDURE dbo.sp_SQLskills_helpindex + @objname nvarchar(776) -- the table to check for indexes +as + +-- June 2016: Support for clustered columnstore as well as removing +-- errors around other index types (hekaton, XML, spatial, etc.) +--September 2013: Correct the output for columnstore indexes. +-- November 2010: Added a column to show if an index is disabled. +-- May 2010: Added tree/leaf columns to the output - this requires the +-- stored procedure: sp_SQLskills_ExposeColsInIndexLevels +-- March 2010: Added index_id to the output (ordered by index_id as well) +-- August 2008: Fixed a bug (missing begin/end block) AND I found +-- a few other issues that people hadn't noticed (yikes!)! +-- April 2008: Updated to add included columns to the output. + + +-- See my blog for updates and/or additional information +-- http://www.SQLskills.com/blogs/Kimberly (Kimberly L. Tripp) + + SET NOCOUNT ON; + + declare @objid int, -- the object id of the table + @indid smallint, -- the index id of an index + @type tinyint, -- the index type + @groupid int, -- the filegroup id of an index + @indname sysname, + @groupname sysname, + @status int, + @keys nvarchar(2126), --Length (16*max_identifierLength)+(15*2)+(16*3) + @inc_columns nvarchar(max), + @inc_Count smallint, + @loop_inc_Count smallint, + @dbname sysname, + @ignore_dup_key bit, + @is_unique bit, + @is_hypothetical bit, + @is_primary_key bit, + @is_unique_key bit, + @is_disabled bit, + @auto_created bit, + @no_recompute bit, + @filter_definition nvarchar(max), + @ColsInTree nvarchar(2126), + @ColsInLeaf nvarchar(max), + @ExecStr nvarchar(max) + + -- Check to see that the object names are local to the current database. + select @dbname = parsename(@objname,3) + if @dbname is null + select @dbname = db_name() + else if @dbname <> db_name() + begin + raiserror(15250,-1,-1) + return (1) + end + + -- Check to see the the table exists and initialize @objid. + select @objid = object_id(@objname) + if @objid is NULL + begin + raiserror(15009,-1,-1,@objname,@dbname) + return (1) + end + + -- OPEN CURSOR OVER INDEXES (skip stats: bug shiloh_51196) + declare ms_crs_ind cursor local static for + select i.index_id, i.[type], i.data_space_id, QUOTENAME(i.name, N']') AS name, + i.ignore_dup_key, i.is_unique, i.is_hypothetical, i.is_primary_key, i.is_unique_constraint, + s.auto_created, s.no_recompute, i.filter_definition, i.is_disabled + from sys.indexes as i + join sys.stats as s + on i.object_id = s.object_id + and i.index_id = s.stats_id + where i.object_id = @objid + open ms_crs_ind + fetch ms_crs_ind into @indid, @type, @groupid, @indname, @ignore_dup_key, @is_unique, @is_hypothetical, + @is_primary_key, @is_unique_key, @auto_created, @no_recompute, @filter_definition, @is_disabled + + -- IF NO INDEX, QUIT + if @@fetch_status < 0 + begin + deallocate ms_crs_ind + raiserror(15472,-1,-1,@objname) -- Object does not have any indexes. + return (0) + end + + -- create temp tables + CREATE TABLE #spindtab + ( + index_name sysname collate database_default NOT NULL, + index_id int, + [type] tinyint, + ignore_dup_key bit, + is_unique bit, + is_hypothetical bit, + is_primary_key bit, + is_unique_key bit, + is_disabled bit, + auto_created bit, + no_recompute bit, + groupname sysname collate database_default NULL, + index_keys nvarchar(2126) collate database_default NULL, -- see @keys above for length descr + filter_definition nvarchar(max), + inc_Count smallint, + inc_columns nvarchar(max), + cols_in_tree nvarchar(2126), + cols_in_leaf nvarchar(max) + ) + + CREATE TABLE #IncludedColumns + ( RowNumber smallint, + [Name] nvarchar(128) + ) + + -- Now check out each index, figure out its type and keys and + -- save the info in a temporary table that we'll print out at the end. + while @@fetch_status >= 0 + begin + -- First we'll figure out what the keys are. + declare @i int, @thiskey nvarchar(131) -- 128+3 + + select @keys = QUOTENAME(index_col(@objname, @indid, 1), N']'), @i = 2 + if (indexkey_property(@objid, @indid, 1, 'isdescending') = 1) + select @keys = @keys + '(-)' + + select @thiskey = QUOTENAME(index_col(@objname, @indid, @i), N']') + if ((@thiskey is not null) and (indexkey_property(@objid, @indid, @i, 'isdescending') = 1)) + select @thiskey = @thiskey + '(-)' + + while (@thiskey is not null ) + begin + select @keys = @keys + ', ' + @thiskey, @i = @i + 1 + select @thiskey = QUOTENAME(index_col(@objname, @indid, @i), N']') + if ((@thiskey is not null) and (indexkey_property(@objid, @indid, @i, 'isdescending') = 1)) + select @thiskey = @thiskey + '(-)' + end + + -- Second, we'll figure out what the included columns are. + select @inc_columns = NULL + + SELECT @inc_Count = count(*) + FROM sys.tables AS tbl + INNER JOIN sys.indexes AS si + ON (si.index_id > 0 + and si.is_hypothetical = 0) + AND (si.object_id=tbl.object_id) + INNER JOIN sys.index_columns AS ic + ON (ic.column_id > 0 + and (ic.key_ordinal > 0 or ic.partition_ordinal = 0 or ic.is_included_column != 0)) + AND (ic.index_id=CAST(si.index_id AS int) AND ic.object_id=si.object_id) + INNER JOIN sys.columns AS clmns + ON clmns.object_id = ic.object_id + and clmns.column_id = ic.column_id + WHERE ic.is_included_column = 1 and + (si.index_id = @indid) and + (tbl.object_id= @objid) + + IF @inc_Count > 0 + BEGIN + DELETE FROM #IncludedColumns + INSERT #IncludedColumns + SELECT ROW_NUMBER() OVER (ORDER BY clmns.column_id) + , clmns.name + FROM sys.tables AS tbl + INNER JOIN sys.indexes AS si + ON (si.index_id > 0 + AND si.is_hypothetical = 0) + AND (si.object_id=tbl.object_id) + INNER JOIN sys.index_columns AS ic + ON (ic.column_id > 0 + AND (ic.key_ordinal > 0 OR ic.partition_ordinal = 0 OR ic.is_included_column != 0)) + AND (ic.index_id=CAST(si.index_id AS int) AND ic.object_id=si.object_id) + INNER JOIN sys.columns AS clmns + ON clmns.object_id = ic.object_id + AND clmns.column_id = ic.column_id + WHERE ic.is_included_column = 1 AND + (si.index_id = @indid) AND + (tbl.object_id= @objid) + + SELECT @inc_columns = QUOTENAME([Name], N']') + FROM #IncludedColumns + WHERE RowNumber = 1 + + SET @loop_inc_Count = 1 + + WHILE @loop_inc_Count < @inc_Count + BEGIN + SELECT @inc_columns = @inc_columns + ', ' + QUOTENAME([Name], N']') + FROM #IncludedColumns WHERE RowNumber = @loop_inc_Count + 1 + SET @loop_inc_Count = @loop_inc_Count + 1 + END + END + + SELECT @groupname = null + + SELECT @groupname = name + FROM sys.data_spaces + WHERE data_space_id = @groupid + + -- Get the column list for the tree and leaf level, for all nonclustered indexes IF + -- the table has a clustered index + + -- Clustered index is non-unique + IF @indid = 1 AND + (SELECT is_unique + FROM sys.indexes + WHERE index_id = 1 + AND object_id = @objid) = 0 + SELECT @ColsInTree = @keys + N', UNIQUIFIER', @ColsInLeaf = N'All columns "included" - the leaf level IS the data row, plus the UNIQUIFIER' + + -- Clustered index AND is unique + IF @indid = 1 AND (SELECT is_unique FROM sys.indexes WHERE index_id = 1 AND object_id = @objid) = 1 + SELECT @ColsInTree = @keys, @ColsInLeaf = N'All columns "included" - the leaf level IS the data row.' + + -- Only run this for nonclustered indexes + IF @indid > 1 + EXEC [sp_SQLskills_ExposeColsInIndexLevels] @objid, @indid, @ColsInTree OUTPUT, @ColsInLeaf OUTPUT; + + -- Nonclustered, non-unique index with non-unique clustered ROWSTORE (type = 1) index + IF @indid > 1 AND @is_unique = 0 + AND (SELECT is_unique + FROM sys.indexes + WHERE index_id = 1 AND type = 1 + AND object_id = @objid) = 0 + SELECT @ColsInTree = @ColsInTree + N', UNIQUIFIER', @ColsInLeaf = @ColsInLeaf + N', UNIQUIFIER' + + -- Nonclustered, unique index with non-unique clustered ROWSTORE (type = 1) index + IF @indid > 1 AND @is_unique = 1 + AND (SELECT is_unique + FROM sys.indexes + WHERE index_id = 1 AND type = 1 + AND object_id = @objid) = 0 + SELECT @ColsInLeaf = @ColsInLeaf + N', UNIQUIFIER' + + -- Nonclustered rowstore on a heap + IF (@indid > 1 AND @type = 2) + AND (SELECT COUNT(*) + FROM sys.indexes + WHERE index_id = 1 + AND object_id = @objid) = 0 -- table is a HEAP + BEGIN + IF (@is_unique_key = 0) + SELECT @ColsInTree = @keys + N', RID' + , @ColsInLeaf = @keys + N', RID' + CASE WHEN @inc_columns IS NOT NULL THEN N', ' + @inc_columns ELSE N'' END + + IF (@is_unique_key = 1) + SELECT @ColsInTree = @keys + , @ColsInLeaf = @keys + N', RID' + CASE WHEN @inc_columns IS NOT NULL THEN N', ' + @inc_columns ELSE N'' END + END + + -- INSERT ROW FOR INDEX + + insert into #spindtab values (@indname, @indid, @type, @ignore_dup_key, @is_unique, @is_hypothetical, + @is_primary_key, @is_unique_key, @is_disabled, @auto_created, @no_recompute, @groupname, @keys, @filter_definition, @inc_Count, @inc_columns, @ColsInTree, @ColsInLeaf) + + -- Next index + fetch ms_crs_ind into @indid, @type, @groupid, @indname, @ignore_dup_key, @is_unique, @is_hypothetical, + @is_primary_key, @is_unique_key, @auto_created, @no_recompute, @filter_definition, @is_disabled + end + deallocate ms_crs_ind + + -- DISPLAY THE RESULTS + +-- Query by version + IF CONVERT(smallint, SUBSTRING(CONVERT(varchar(50), SERVERPROPERTY('ProductVersion')), 1, 2)) < 16 + + select @ExecStr = + + N'select ' + + N'''index_id'' = index_id, ' + + N'''is_disabled'' = is_disabled, ' + + N'''index_name'' = index_name, ' + + N'''index_description'' = ' + + N' convert(varchar(210), ' --bits 16 off, 1, 2, 16777216 on, located on group ' + + N' case when index_id = 1 and type = 1 then ''clustered'' ' + + N' when index_id = 1 and type = 5 then ''clustered, columnstore'' ' + + N' when index_id > 1 and type = 2 then ''nonclustered'' ' + + N' when index_id > 1 and type = 6 then ''nonclustered, columnstore'' ' + + N' when index_id > 1 and type = 7 then ''nonclustered, HASH'' ' + + N' else ''new index type'' end ' + + N' + case when ignore_dup_key <>0 then '', ignore duplicate keys'' else '''' end ' + + N' + case when is_unique=1 then '', unique'' else '''' end ' + + N' + case when is_hypothetical <>0 then '', hypothetical'' else '''' end ' + + N' + case when is_primary_key <>0 then '', primary key'' else '''' end ' + + N' + case when is_unique_key <>0 then '', unique key'' else '''' end ' + + N' + case when auto_created <>0 then '', auto create'' else '''' end ' + + N' + case when no_recompute <>0 then '', stats no recompute'' else '''' end ' + + N' + case when groupname IS NOT NULL then '' located on '' + groupname else '''' end), ' + + N'''index_keys'' = + case when type IN (5, 6) then ''n/a, see columns_in_leaf for details'' + else index_keys end, + ''included_columns'' = + case when type IN (5, 6) then ''n/a, columnstore index'' + when type = 7 then ''n/a, HASH'' + else inc_columns end, + ''filter_definition'' = + case when type IN (5, 6) then ''n/a, columnstore index'' + when type = 7 then ''n/a, HASH'' + else filter_definition end, + ''columns_in_tree'' = + case when type IN (5, 6) then ''n/a, columnstore index'' + when type = 7 then ''n/a, HASH'' + else cols_in_tree end, + ''columns_in_leaf'' = + case when type IN (5, 6) then ''Columns with columnstore index: '' + cols_in_leaf + when type = 7 then ''n/a, HASH'' + else cols_in_leaf end + + from #spindtab + order by index_id ' + + IF CONVERT(smallint, SUBSTRING(CONVERT(varchar(50), SERVERPROPERTY('ProductVersion')), 1, 2)) >= 16 + + select @ExecStr = + + N'select ' + + N'''index_id'' = index_id, ' + + N'''is_disabled'' = is_disabled, ' + + N'''index_name'' = index_name, ' + + N'''index_description'' = ' + + N' convert(varchar(210), ' --bits 16 off, 1, 2, 16777216 on, located on group ' + + N' case when index_id = 1 and type = 1 then ''clustered'' ' + + N' when index_id = 1 and type = 5 then ''clustered, columnstore'' ' + + N' when index_id > 1 and type = 2 then ''nonclustered'' ' + + N' when index_id > 1 and type = 6 then ''nonclustered, columnstore'' ' + + N' when index_id > 1 and type = 7 then ''nonclustered, HASH'' ' + + N' else ''new index type'' end ' + + N' + case when ignore_dup_key <>0 then '', ignore duplicate keys'' else '''' end ' + + N' + case when is_unique=1 then '', unique'' else '''' end ' + + N' + case when is_hypothetical <>0 then '', hypothetical'' else '''' end ' + + N' + case when is_primary_key <>0 then '', primary key'' else '''' end ' + + N' + case when is_unique_key <>0 then '', unique key'' else '''' end ' + + N' + case when auto_created <>0 then '', auto create'' else '''' end ' + + N' + case when no_recompute <>0 then '', stats no recompute'' else '''' end ' + + N' + case when memory_optimized = 1 then '' located in MEMORY '' else '''' end ' + + N' + case when groupname IS NOT NULL AND + (memory_optimized = 0 OR memory_optimized IS NULL) + then '' located on '' + groupname else '''' end), ' + + N'''index_keys'' = + case when type IN (5, 6) then ''n/a, see columns_in_leaf for details'' + else index_keys end, + ''included_columns'' = + case when type IN (5, 6) then ''n/a, columnstore index'' + when type = 7 then ''n/a, HASH'' + else inc_columns end, + ''filter_definition'' = + case when type IN (5, 6) then ''n/a, columnstore index'' + when type = 7 then ''n/a, HASH'' + else filter_definition end, + ''columns_in_tree'' = + case when type IN (5, 6) then ''n/a, columnstore index'' + when type = 7 then ''n/a, HASH'' + else cols_in_tree end, + ''columns_in_leaf'' = + case when type IN (5, 6) then ''Columns with columnstore index: '' + cols_in_leaf + when type = 7 then ''n/a, HASH'' + else cols_in_leaf end + + from #spindtab + order by index_id ' + + --SELECT (@ExecStr) + EXEC (@ExecStr); + + return (0) -- sp_SQLskills_helpindex +GO + +exec [sys].[sp_MS_marksystemobject] 'sp_SQLskills_helpindex' +GO diff --git a/Stored_Procedure/dbo.sp_Snapshot.sql b/Stored_Procedure/dbo.sp_Snapshot.sql new file mode 100644 index 00000000..7d50fe4c --- /dev/null +++ b/Stored_Procedure/dbo.sp_Snapshot.sql @@ -0,0 +1,156 @@ +USE master; +GO + +IF OBJECT_ID (N'dbo.sp_Snapshot', 'P') IS NULL + EXECUTE('CREATE PROCEDURE dbo.sp_Snapshot AS SELECT 1'); +GO + +ALTER PROCEDURE dbo.sp_Snapshot( + @databaseList NVARCHAR(4000) + , @listOnly BIT = 0 + , @debug BIT = 1 +) +AS +/* +EXAMPLE +EXEC dbo.sp_Snapshot + @databaseList = 'AdventureworksDW2016CTP3,AdventureworksTest' + , @debug = 0; + +NOTE + Github: https://github.com/ktaranov/sqlserver-kit/blob/master/dbo.sp_Snapshot.sql + Original Link: https://sqlundercover.com/2017/09/20/sp_snapshot/ + Author: David Fowler + Created Date: 2017-09-19 + Modified: 2017-09-28 Konstantin Taranov + (c) SQLUndercover 2017 +*/ +BEGIN + +DECLARE @TSQLStatement NVARCHAR(MAX) = N''; + +SET NOCOUNT ON; + +IF OBJECT_ID('tempdb..#DatabaseList') IS NOT NULL + DROP TABLE #DatabaseList; + +CREATE TABLE #DatabaseList(name NVARCHAR(4000)); + +IF OBJECT_ID('tempdb..#DatabasesFinal') IS NOT NULL + DROP TABLE #DatabasesFinal; + +--set compatibility mode +DECLARE @compatibility BIT; + +--set compatibility to 1 if server version includes STRING_SPLIT +SELECT @compatibility = CASE + WHEN SERVERPROPERTY ('productversion') >= '13.0.4001.0' AND Compatibility_Level >= 130 THEN 1 + ELSE 0 + END +FROM sys.databases +WHERE name = DB_NAME(); + +--select the database list into a temp table so that we can work with it +IF @compatibility = 1 --if compatibility = 1 then use STRING_SPLIT otherwise use fn_SplitString + INSERT INTO #DatabaseList + SELECT value + FROM STRING_SPLIT(@databaseList, ','); +ELSE + INSERT INTO #DatabaseList + SELECT Item AS name + FROM master.dbo.udf_SplitStringByDelimiter(@databaseList, ','); +-- https://github.com/ktaranov/sqlserver-kit/blob/master/User_Defined_Function/udf_SplitStringByDelimiter.sql + +--get list of databases, including those covered by any wildcards +SELECT QUOTENAME(name) AS name +INTO #DatabasesFinal +FROM sys.databases databases +WHERE EXISTS + (SELECT name + FROM #DatabaseList + WHERE databases.name LIKE #DatabaseList.name); + +IF @listOnly = 1 --if @listOnly set then only print the affected databases +SELECT name +FROM #DatabasesFinal; +ELSE +BEGIN + + DECLARE @Databases NVARCHAR(128); + + ------------------------------------------------------------------------------------------------------ + --Loop through each database creating snapshots + + DECLARE databases_curr CURSOR + FOR SELECT name + FROM #DatabasesFinal; + + OPEN databases_curr; + + FETCH NEXT FROM databases_curr + INTO @Databases; + + WHILE @@FETCH_STATUS = 0 + BEGIN + + -- Create Snapshots + SET @TSQLStatement = 'USE ' + @Databases + ';' + CHAR(13) + + ' + DECLARE @DatabaseName NVARCHAR(128); + DECLARE @SnapshotName NVARCHAR(128); + SET @DatabaseName = DB_NAME(); + SET @SnapshotName = DB_NAME() + ''_snapshot''; + + --table variable to hold file list + DECLARE @DatabaseFiles TABLE (id INT identity(1,1), name NVARCHAR(128), physical_name NVARCHAR(400)); + + --populate table variable with file information + INSERT INTO @DatabaseFiles (name, physical_name) + SELECT name, physical_name + FROM sys.database_files + WHERE type != 1; + + --begin building snapshot script + DECLARE @snapshotScript NVARCHAR(2000); + SET @snapshotScript = ''CREATE DATABASE '' + QUOTENAME(@SnapshotName) + '' ON ''; + + -- Loop through datafile table variable + DECLARE @LoopCounter INT = 0; + + DECLARE @FileCount INT; + SELECT @FileCount = COUNT(*) + FROM @DatabaseFiles; + + WHILE @LoopCounter < @FileCount + BEGIN + SET @LoopCounter = @LoopCounter + 1 + SELECT @snapshotScript = @snapshotScript + ''(NAME = '' + QUOTENAME(name) + '', FILENAME = '''''' + physical_name + ''.ss''''),'' + FROM @DatabaseFiles + WHERE id = @LoopCounter; + END; + + --loop will have added an unwanted comma at the end of the script, delete this comma + SET @snapshotScript = LEFT(@snapshotScript, LEN(@snapshotScript) -1); + + --add AS SNAPSHOT to script + SET @snapshotScript = @snapshotScript + '' AS SNAPSHOT OF ['' + @DatabaseName + '']''; + + --Generate the snapshot + PRINT ''Creating Snapshot for ' + @Databases + '''; + EXEC sp_executesql @snapshotScript;'; + + SET @TSQLStatement = REPLACE(@TSQLStatement, ' ', ''); + + IF @debug = 1 PRINT @TSQLStatement; + ELSE + EXEC sp_executesql @TSQLStatement; + + FETCH NEXT FROM databases_curr + INTO @Databases; + END; + + CLOSE databases_curr; + DEALLOCATE databases_curr; +END; +END; +GO diff --git a/Stored_Procedure/sp_SrvPermissions.sql b/Stored_Procedure/dbo.sp_SrvPermissions.sql similarity index 65% rename from Stored_Procedure/sp_SrvPermissions.sql rename to Stored_Procedure/dbo.sp_SrvPermissions.sql index 161e920e..12c4353e 100644 --- a/Stored_Procedure/sp_SrvPermissions.sql +++ b/Stored_Procedure/dbo.sp_SrvPermissions.sql @@ -61,6 +61,25 @@ Parameters: @IncludeMSShipped When this is set to 1 (the default) then all principals will be included. When set to 0 the fixed server roles and SA and Public principals will be excluded. + @DropTempTables + When this is set to 1 (the default) the temp tables used are dropped. If it's 0 + then the tempt ables are kept for references after the code has finished. + The temp tables are: + ##SrvPrincipals + ##SrvRoles + ##SrvPermissions + @Output + What type of output is desired. + Default - Either 'Default' or it doesn't match any of the allowed values then the SP + will return the standard 3 outputs. + None - No output at all. Usually used if you keeping the temp tables to do your own + reporting. + CreateOnly - Only return the create scripts where they aren't NULL. + DropOnly - Only return the drop scripts where they aren't NULL. + ScriptsOnly - Return drop and create scripts where they aren't NULL. + Report - Returns one output with one row per principal and a comma delimited list of + roles the principal is a member of and a comma delimited list of the + individual permissions they have. @Print Defaults to 0, but if a 1 is passed in then the queries are not run but printed out instead. This is primarily for debugging. @@ -69,7 +88,7 @@ Data is ordered as follows 1st result set: SrvPrincipal 2nd result set: RoleName, LoginName if the parameter @Role is used else LoginName, RoleName - 3rd result set: Grantee_Name + 3rd result set: GranteeName ********************************************************************************************* -- V2.0 @@ -90,6 +109,11 @@ Data is ordered as follows -- 7/22/2014 - Changed strings to unicode -- V6.0 -- 10/19/2014 - Add @UserLikeSearch and @IncludeMSShipped parameters. +-- 03/25/2017 - Move SID towards the end of the first output so the more important +-- columns are closer to the front. +-- 03/25/2017 - Add IF Exists to drop and create principal scripts +-- 03/25/2017 - Add @DropTempTables to keep the temp tables after the SP is run. +-- 03/26/2017 - Add @Output to allow different types of output. *********************************************************************************************/ ALTER PROCEDURE dbo.sp_SrvPermissions ( @@ -99,6 +123,8 @@ ALTER PROCEDURE dbo.sp_SrvPermissions @DBName sysname = NULL, @UseLikeSearch bit = 1, @IncludeMSShipped bit = 1, + @DropTempTables bit = 1, + @Output varchar(30) = 'Default', @Print bit = 0 ) AS @@ -110,7 +136,7 @@ IF @DBName IS NOT NULL AND NOT EXISTS (SELECT 1 FROM sys.databases WHERE name = 1, @DBName) RETURN - END + END DECLARE @Collation nvarchar(50) SET @Collation = N' COLLATE ' + CAST(SERVERPROPERTY('Collation') AS nvarchar(50)) @@ -124,11 +150,11 @@ DECLARE @LikeOperator nvarchar(4) IF @UseLikeSearch = 1 SET @LikeOperator = N'LIKE' -ELSE +ELSE SET @LikeOperator = N'=' IF @UseLikeSearch = 1 -BEGIN +BEGIN IF LEN(ISNULL(@Principal,'')) > 0 SET @Principal = N'%' + @Principal + N'%' @@ -139,15 +165,17 @@ END --========================================================================= -- Server Principals SET @sql = - N'SELECT name AS SrvPrincipal, sid, type, type_desc, is_disabled, default_database_name, - default_language_name, ' + NCHAR(13) + + N'SELECT principal_id AS SrvPrincipalId, name AS SrvPrincipal, type, type_desc, is_disabled, default_database_name, + default_language_name, sid, ' + NCHAR(13) + N' CASE WHEN principal_id < 100 THEN NULL ELSE ' + NCHAR(13) + + N' ''IF EXISTS (SELECT * FROM sys.server_principals WHERE name = '' + QuoteName(Logins.name,'''''''') + '') '' + ' + NCHAR(13) + N' ''DROP '' + CASE [type] WHEN ''C'' THEN NULL ' + NCHAR(13) + N' WHEN ''K'' THEN NULL ' + NCHAR(13) + N' WHEN ''R'' THEN ''ROLE'' ' + NCHAR(13) + N' ELSE ''LOGIN'' END + ' + NCHAR(13) + - N' '' ''+QUOTENAME(name' + @Collation + ') END + '';'' AS Drop_Script, ' + NCHAR(13) + + N' '' ''+QUOTENAME(name' + @Collation + ') END + '';'' AS DropScript, ' + NCHAR(13) + N' CASE WHEN principal_id < 100 THEN NULL ELSE ' + NCHAR(13) + + N' ''IF NOT EXISTS (SELECT * FROM sys.server_principals WHERE name = '' + QuoteName(Logins.name,'''''''') + '') '' + ' + NCHAR(13) + N' ''CREATE '' + CASE [type] WHEN ''C'' THEN NULL ' + NCHAR(13) + N' WHEN ''K'' THEN NULL ' + NCHAR(13) + N' WHEN ''R'' THEN ''ROLE'' ' + NCHAR(13) + @@ -159,20 +187,20 @@ SET @sql = CASE WHEN @Version2005orLower = 0 THEN N','' + ' + NCHAR(13) + N' '' SID = '' + CONVERT(varchar(85), sid, 1) + ' + NCHAR(13) ELSE N''' + ' + NCHAR(13) END + - N' CASE WHEN default_database_name IS NOT NULL OR default_language_name IS NOT NULL THEN '','' + N' CASE WHEN default_database_name IS NOT NULL OR default_language_name IS NOT NULL THEN '','' ELSE '''' END ' + NCHAR(13) + N' WHEN [type] IN (''U'',''G'') THEN '' FROM WINDOWS '' + ' + NCHAR(13) + - N' CASE WHEN default_database_name IS NOT NULL OR default_language_name IS NOT NULL THEN '' WITH '' + N' CASE WHEN default_database_name IS NOT NULL OR default_language_name IS NOT NULL THEN '' WITH '' ELSE '''' END ' + NCHAR(13) + N' ELSE '''' END + ' + NCHAR(13) + N' ISNULL('' DEFAULT_DATABASE = '' + QUOTENAME(default_database_name' + @Collation + N'), '''') + ' + NCHAR(13) + - N' CASE WHEN default_database_name IS NOT NULL AND default_language_name IS NOT NULL THEN '','' + N' CASE WHEN default_database_name IS NOT NULL AND default_language_name IS NOT NULL THEN '','' ELSE '''' END + ' + NCHAR(13) + N' ISNULL('' DEFAULT_LANGUAGE = '' + QUOTENAME(default_language_name' + @Collation + N'), '''') + ' + NCHAR(13) + N' '';'' ' + NCHAR(13) + - N' AS Create_Script ' + NCHAR(13) + + N' AS CreateScript ' + NCHAR(13) + N'FROM sys.server_principals Logins ' + NCHAR(13) + N'WHERE 1=1 ' @@ -196,24 +224,41 @@ IF @IncludeMSShipped = 0 SET @sql = @sql + NCHAR(13) + N' AND Logins.is_fixed_role = 0 ' + NCHAR(13) + ' AND Logins.name NOT IN (''sa'',''public'') ' -SET @sql = @sql + NCHAR(13) + - N'ORDER BY Logins.name ' - IF @Print = 1 PRINT '-- Server Principals' + NCHAR(13) + @sql + NCHAR(13) + NCHAR(13) ELSE - EXEC sp_executesql @sql, N'@Principal sysname, @Role sysname, @Type varchar(30)', @Principal, @Role, @Type +BEGIN + IF object_id('tempdb..##SrvPrincipals') IS NOT NULL + DROP TABLE ##SrvPrincipals + + -- Create temp table to store the data in + CREATE TABLE ##SrvPrincipals ( + SrvPrincipalId int NULL, + SrvPrincipal sysname NULL, + type char(1) NULL, + type_desc nchar(60) NULL, + is_disabled bit NULL, + default_database_name sysname NULL, + default_language_name sysname NULL, + sid varbinary(85) NULL, + DropScript nvarchar(max) NULL, + CreateScript nvarchar(max) NULL + ) + SET @sql = N'INSERT INTO ##SrvPrincipals ' + NCHAR(13) + @sql + + EXEC sp_executesql @sql, N'@Principal sysname, @Role sysname, @Type varchar(30)', @Principal, @Role, @Type +END --========================================================================= -- Server level roles SET @sql = - N'SELECT Logins.name AS UserName, Roles.name AS RoleName, ' + NCHAR(13) + + N'SELECT Logins.principal_id AS LoginPrincipalId, Logins.name AS LoginName, Roles.name AS RoleName, ' + NCHAR(13) + N' ''EXEC sp_dropsrvrolemember @loginame = ''+QUOTENAME(Logins.name' + @Collation + ','''''''')+'', @rolename = ''+QUOTENAME(Roles.name' + @Collation + - ','''''''') + '';'', ' + NCHAR(13) + + ','''''''') + '';'' AS DropScript, ' + NCHAR(13) + N' ''EXEC sp_addsrvrolemember @loginame = ''+QUOTENAME(Logins.name' + @Collation + ','''''''')+'', @rolename = ''+QUOTENAME(Roles.name' + @Collation + - ','''''''') + '';'' ' + NCHAR(13) + + ','''''''') + '';'' AS AddScript ' + NCHAR(13) + N'FROM sys.server_role_members RoleMembers ' + NCHAR(13) + N'JOIN sys.server_principals Logins ' + NCHAR(13) + N' ON RoleMembers.member_principal_id = Logins.principal_id ' + NCHAR(13) + @@ -247,36 +292,45 @@ IF @IncludeMSShipped = 0 SET @sql = @sql + NCHAR(13) + N' AND Logins.is_fixed_role = 0 ' + NCHAR(13) + ' AND Logins.name NOT IN (''sa'',''public'') ' -IF LEN(@Role) > 0 - SET @sql = @sql + NCHAR(13) + - N'ORDER BY Roles.name, Logins.name ' -ELSE - SET @sql = @sql + NCHAR(13) + - N'ORDER BY Logins.name, Roles.name ' - IF @Print = 1 PRINT '-- Server Role Members' + NCHAR(13) + @sql + NCHAR(13) + NCHAR(13) ELSE +BEGIN + IF object_id('tempdb..##SrvRoles') IS NOT NULL + DROP TABLE ##SrvRoles + + -- Create temp table to store the data in + CREATE TABLE ##SrvRoles ( + LoginPrincipalId int NULL, + LoginName sysname NULL, + RoleName sysname NULL, + DropScript nvarchar(max) NULL, + AddScript nvarchar(max) NULL + ) + + SET @sql = 'INSERT INTO ##SrvRoles ' + NCHAR(13) + @sql + EXEC sp_executesql @sql, N'@Principal sysname, @Role sysname, @Type nvarchar(30)', @Principal, @Role, @Type +END --========================================================================= -- Server Permissions SET @sql = - N'SELECT Grantee.name AS Grantee_Name, Grantor.name AS Grantor_Name, ' + NCHAR(13) + - N' Permission.class_desc, Permission.permission_name, ' + NCHAR(13) + + N'SELECT Grantee.principal_id AS GranteePrincipalId, Grantee.name AS GranteeName, ' + NCHAR(13) + + N' Grantor.name AS GrantorName, Permission.class_desc, Permission.permission_name, ' + NCHAR(13) + N' Permission.state_desc, ' + NCHAR(13) + N' ''REVOKE '' + ' + NCHAR(13) + N' CASE WHEN Permission.class_desc = ''ENDPOINT'' THEN NULL ' + NCHAR(13) + N' WHEN Permission.[state] = ''W'' THEN ''GRANT OPTION FOR '' ELSE '''' END + ' + NCHAR(13) + N' '' '' + Permission.permission_name' + @Collation + ' + ' + NCHAR(13) + - N' '' FROM '' + QUOTENAME(Grantee.name' + @Collation + ') + ''; '' AS Revoke_Statement, ' + NCHAR(13) + + N' '' FROM '' + QUOTENAME(Grantee.name' + @Collation + ') + ''; '' AS RevokeScript, ' + NCHAR(13) + N' CASE WHEN Permission.class_desc = ''ENDPOINT'' THEN NULL ' + NCHAR(13) + N' WHEN Permission.[state] = ''W'' THEN ''GRANT'' ELSE Permission.state_desc' + @Collation + ' END + ' + NCHAR(13) + N' '' '' + Permission.permission_name' + @Collation + ' + ' + NCHAR(13) + N' '' TO '' + QUOTENAME(Grantee.name' + @Collation + ') + '' '' + ' + NCHAR(13) + N' CASE WHEN Permission.[state] = ''W'' THEN '' WITH GRANT OPTION '' ELSE '''' END + ' + NCHAR(13) + - N' '' AS ''+ QUOTENAME(Grantor.name' + @Collation + ') + '';'' AS Grant_Statement ' + NCHAR(13) + + N' '' AS ''+ QUOTENAME(Grantor.name' + @Collation + ') + '';'' AS GrantScript ' + NCHAR(13) + N'FROM sys.server_permissions Permission ' + NCHAR(13) + N'JOIN sys.server_principals Grantee ' + NCHAR(13) + N' ON Permission.grantee_principal_id = Grantee.principal_id ' + NCHAR(13) + @@ -304,11 +358,91 @@ IF @IncludeMSShipped = 0 SET @sql = @sql + NCHAR(13) + N' AND Grantee.is_fixed_role = 0 ' + NCHAR(13) + ' AND Grantee.name NOT IN (''sa'',''public'') ' -SET @sql = @sql + NCHAR(13) + - N'ORDER BY Grantee.name ' - IF @Print = 1 PRINT '-- Server Permissions' + NCHAR(13) + @sql + NCHAR(13) + NCHAR(13) ELSE +BEGIN + IF object_id('tempdb..##SrvPermissions') IS NOT NULL + DROP TABLE ##SrvPermissions + + -- Create temp table to store the data in + CREATE TABLE ##SrvPermissions ( + GranteePrincipalId int NULL, + GranteeName sysname NULL, + GrantorName sysname NULL, + class_desc nvarchar(60) NULL, + permission_name nvarchar(128) NULL, + state_desc nvarchar(60) NULL, + RevokeScript nvarchar(max) NULL, + GrantScript nvarchar(max) NULL + ) + + -- Add insert statement to @sql + SET @sql = N'INSERT INTO ##SrvPermissions ' + NCHAR(13) + @sql + EXEC sp_executesql @sql, N'@Principal sysname, @Role sysname, @Type nvarchar(30)', @Principal, @Role, @Type +END + +IF @Print <> 1 +BEGIN + + IF @Output = 'None' + PRINT '' + ELSE IF @Output = 'CreateOnly' + BEGIN + SELECT CreateScript FROM ##SrvPrincipals WHERE CreateScript IS NOT NULL + SELECT AddScript FROM ##SrvRoles WHERE AddScript IS NOT NULL + SELECT GrantScript FROM ##SrvPermissions WHERE GrantScript IS NOT NULL + END + ELSE IF @Output = 'DropOnly' + BEGIN + SELECT DropScript FROM ##SrvPrincipals WHERE DropScript IS NOT NULL + SELECT DropScript FROM ##SrvRoles WHERE DropScript IS NOT NULL + SELECT RevokeScript FROM ##SrvPermissions WHERE RevokeScript IS NOT NULL + END + ELSE IF @Output = 'ScriptOnly' + BEGIN + SELECT DropScript, CreateScript FROM ##SrvPrincipals WHERE DropScript IS NOT NULL OR CreateScript IS NOT NULL + SELECT DropScript, AddScript FROM ##SrvRoles WHERE DropScript IS NOT NULL OR AddScript IS NOT NULL + SELECT RevokeScript, GrantScript FROM ##SrvPermissions WHERE RevokeScript IS NOT NULL OR GrantScript IS NOT NULL + END + ELSE IF @Output = 'Report' + BEGIN + SELECT SrvPrincipal, type, type_desc, is_disabled, + STUFF((SELECT ', ' + ##SrvRoles.RoleName + FROM ##SrvRoles + WHERE ##SrvPrincipals.SrvPrincipalId = ##SrvRoles.LoginPrincipalId + ORDER BY ##SrvRoles.RoleName + FOR XML PATH(''),TYPE).value('.','VARCHAR(MAX)') + , 1, 2, '') AS RoleMembership, + STUFF((SELECT ', ' + ##SrvPermissions.state_desc + ' ' + ##SrvPermissions.permission_name + ' ' + + CASE WHEN class_desc <> 'SERVER' THEN class_desc ELSE '' END + FROM (SELECT DISTINCT * FROM ##SrvPermissions) ##SrvPermissions + WHERE ##SrvPrincipals.SrvPrincipalId = ##SrvPermissions.GranteePrincipalId + ORDER BY ##SrvPermissions.state_desc, ##SrvPermissions.permission_name + FOR XML PATH(''),TYPE).value('.','VARCHAR(MAX)') + , 1, 2, '') AS DirectPermissions + FROM ##SrvPrincipals + ORDER BY SrvPrincipal + END + ELSE -- 'Default' or no match + BEGIN + SELECT SrvPrincipal, type, type_desc, is_disabled, default_database_name, + default_language_name, sid, DropScript, CreateScript + FROM ##SrvPrincipals ORDER BY SrvPrincipal + IF LEN(@Role) > 0 + SELECT LoginName, RoleName, DropScript, AddScript FROM ##SrvRoles ORDER BY RoleName, LoginName + ELSE + SELECT LoginName, RoleName, DropScript, AddScript FROM ##SrvRoles ORDER BY LoginName, RoleName + SELECT GranteeName, GrantorName, class_desc, permission_name, state_desc, RevokeScript, GrantScript + FROM ##SrvPermissions ORDER BY GranteeName + END + + IF @DropTempTables = 1 + BEGIN + DROP TABLE ##SrvPrincipals + DROP TABLE ##SrvRoles + DROP TABLE ##SrvPermissions + END +END GO diff --git a/Stored_Procedure/dbo.sp_WhatsupQueryStore.sql b/Stored_Procedure/dbo.sp_WhatsupQueryStore.sql new file mode 100644 index 00000000..a9d1cb9f --- /dev/null +++ b/Stored_Procedure/dbo.sp_WhatsupQueryStore.sql @@ -0,0 +1,553 @@ +/********************************************************************************************* +sp_WhatsupQueryStore v1.2 +(C) Enrico van de Laar (Twitter: @evdlaar) +https://github.com/Evdlaar/sp_WhatsupQueryStore + +Feedback: mailto:enrico@dotnine.net + +License: + This script is free to download and use for personal, educational, and internal + corporate purposes, provided that this header is preserved. Redistribution or sale + of this script, in whole or in part, is prohibited without the author's express + written consent. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, + INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES + OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +*********************************************************************************************/ + +USE [master] +GO + +-- Check if the sp_WhatsupQueryStore procedure is present +-- if it is, drop it first. +IF OBJECT_ID('dbo.sp_WhatsupQueryStore', 'P') IS NULL +EXECUTE ('CREATE PROCEDURE dbo.sp_WhatsupQueryStore AS SELECT 1'); +GO + +ALTER PROCEDURE dbo.sp_WhatsupQueryStore + @dbname VARCHAR(75), + @timewindow VARCHAR(4) = 1, + @topqueries VARCHAR(4) = 25, + @return_store_config INT = 0, + @return_forced_plans INT = 0, + @return_multiple_plans INT = 0, + @return_top_executed INT = 0, + @return_top_duration INT = 0, + @return_top_cpu INT = 0, + @return_top_log_read INT = 0, + @return_top_log_write INT = 0, + @return_top_phys_read INT = 0, + @return_all INT = 0, + @show_query_hints INT = 0 + +AS + +-- First we are going to check if the Query Store is enabled for the target database. +-- If it is we can continue, otherwise end the execution. +DECLARE @qs_enabled INT; +DECLARE @sql_detect_QS_enabled NVARCHAR(250); +DECLARE @sql_detect_QS_enabled_params NVARCHAR(100); + +SET @sql_detect_QS_enabled = + N'SELECT @qs_enabledOut = is_query_store_on + FROM sys.databases + WHERE [name] = ''' + @dbname + ''' + '; +SET @sql_detect_QS_enabled_params = N'@qs_enabledOut int OUTPUT'; + +EXEC sp_executesql @sql_detect_QS_enabled, @sql_detect_QS_enabled_params, @qs_enabledOut = @qs_enabled OUTPUT; + +IF @qs_enabled = 0 + + BEGIN + -- Query Store is not enabled on the target database, return an error and stop execution. + PRINT 'Query Store is not enabled on database "' + @dbname + '" aborting execution of sp_WhatsupQueryStore.'; + RETURN; + END + +ELSE + + BEGIN + + -- Now that we detected that the Query Store is enabled on the target database + -- we can start grabbing information from it. + + IF @return_store_config = 1 OR @return_all = 1 + + BEGIN + + /* + SECTION 1 + Query Store configuration + */ + + SELECT 'Query Store Configuration' AS 'Info'; + + DECLARE @sql_qs_config NVARCHAR(900); + + SET @sql_qs_config = + N'SELECT + actual_state_desc AS ''Operation mode (actual)'', + desired_state_desc AS ''Operation mode (desired)'', + current_storage_size_mb AS ''Query Store current size (MB)'', + [max_storage_size_mb] AS ''Query Store maximum size (MB)'', + [max_storage_size_mb]-current_storage_size_mb AS ''Query Store free space (MB)'', + [flush_interval_seconds]/60 AS ''Data Flush Interval (min)'', + [interval_length_minutes] AS ''Statistics Collection Interval (min)'', + stale_query_threshold_days AS ''Stale Query Threshold (days)'', + query_capture_mode_desc AS ''Query Capture Mode'', + [max_plans_per_query] AS ''Maximum nr of plans per query'', + size_based_cleanup_mode_desc AS ''Size based cleanup mode'' + FROM ' + @dbname + '.sys.database_query_store_options + '; + + EXEC sp_executesql @sql_qs_config; + + END; + + /* + SECTION 2 + Forced Query Store plans + */ + + IF @return_forced_plans = 1 OR @return_all = 1 + BEGIN + + SELECT 'Forced Query Store Execution Plans' AS 'Info'; + + DECLARE @sql_qs_forced_plans NVARCHAR(2000); + + SET @sql_qs_forced_plans = + N'SELECT + qp.query_id AS ''Query ID'', + qp.plan_id AS ''Plan ID'', + qsqt.query_sql_text AS ''Statement'', + CAST(qp.query_plan AS XML) AS ''Execution Plan'', + qp.force_failure_count AS ''Force failure count'', + qp.last_force_failure_reason_desc AS ''Last failure reason'', + CONVERT(datetime, SWITCHOFFSET(CONVERT(datetimeoffset, qp.last_execution_time), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) AS ''Last execution date/time'' + FROM ' + @dbname + '.sys.query_store_plan qp WITH (NOLOCK) + INNER JOIN ' + @dbname + '.sys.query_store_query qsq WITH (NOLOCK) + ON qp.query_id = qsq.query_id + INNER JOIN ' + @dbname + '.sys.query_store_query_text qsqt WITH (NOLOCK) + ON qsq.query_text_id = qsqt.query_text_id + WHERE qp.is_forced_plan = 1 + '; + + EXEC sp_executesql @sql_qs_forced_plans; + + END; + + /* + SECTION 3 + Queries with multiple execution plans + */ + + IF @return_multiple_plans = 1 OR @return_all = 1 + + BEGIN + + SELECT 'Queries with multiple plans in the last ' + @timewindow + ' hour(s)' AS 'Info'; + + DECLARE @sql_qs_multiple_plans NVARCHAR(MAX); + + IF @show_query_hints = 0 + + BEGIN + + SET @sql_qs_multiple_plans = + N'WITH CTE_QS_Multiple_Plans (query_id, plan_count) + AS + ( + SELECT + qsp.query_id, + COUNT(qsp.plan_id) + FROM ' + @dbname + '.sys.query_store_plan qsp WITH (NOLOCK) + WHERE CONVERT(datetime, SWITCHOFFSET(CONVERT(datetimeoffset, qsp.last_execution_time), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) >= DATEADD(hour, -' + @timewindow + ', getdate()) + GROUP BY query_id HAVING COUNT(plan_id) > 1 + ) + + SELECT + cte.query_id AS ''Query ID'', + qsp.plan_id AS ''Plan ID'', + CONVERT(datetime, SWITCHOFFSET(CONVERT(datetimeoffset, qsp.last_execution_time), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) AS ''Last Execution Time'', + qsqt.query_sql_text AS ''Query Text'', + qsp.engine_version AS ''Engine Version'', + qsp.[compatibility_level] AS ''Compatibility Level'', + CAST(qsp.query_plan AS XML) AS ''Execution Plan'' + FROM CTE_QS_Multiple_Plans cte + INNER JOIN ' + @dbname + '.sys.query_store_plan qsp + ON cte.query_id = qsp.query_id + INNER JOIN ' + @dbname + '.sys.query_store_query qsq WITH (NOLOCK) + ON qsp.query_id = qsq.query_id + INNER JOIN ' + @dbname + '.sys.query_store_query_text qsqt WITH (NOLOCK) + ON qsq.query_text_id = qsqt.query_text_id + WHERE CONVERT(datetime, SWITCHOFFSET(CONVERT(datetimeoffset, qsp.last_execution_time), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) >= DATEADD(hour, -' + @timewindow + ', getdate()) + ORDER BY cte.query_id ASC + '; + + EXEC sp_executesql @sql_qs_multiple_plans; + + END; + + IF @show_query_hints = 1 + + BEGIN + + SET @sql_qs_multiple_plans = + N'WITH CTE_QS_Multiple_Plans (query_id, plan_count) + AS + ( + SELECT + qsp.query_id, + COUNT(qsp.plan_id) + FROM ' + @dbname + '.sys.query_store_plan qsp WITH (NOLOCK) + WHERE CONVERT(datetime, SWITCHOFFSET(CONVERT(datetimeoffset, qsp.last_execution_time), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) >= DATEADD(hour, -' + @timewindow + ', getdate()) + GROUP BY query_id HAVING COUNT(plan_id) > 1 + ) + + SELECT + cte.query_id AS ''Query ID'', + qsp.plan_id AS ''Plan ID'', + CONVERT(datetime, SWITCHOFFSET(CONVERT(datetimeoffset, qsp.last_execution_time), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) AS ''Last Execution Time'', + qsqt.query_sql_text AS ''Query Text'', + qsp.engine_version AS ''Engine Version'', + qsp.[compatibility_level] AS ''Compatibility Level'', + CAST(qsp.query_plan AS XML) AS ''Execution Plan'', + CAST(''-- Force Execution Plan '' + CAST(qsp.plan_id AS varchar) + '' for Query '' + CAST(cte.query_id AS varchar) + '' through the Query Store EXEC sp_query_store_force_plan '' + CAST(cte.query_id AS varchar) + '', '' + CAST(qsp.plan_id AS varchar) + '''' AS XML) AS ''Force Plan'' + FROM CTE_QS_Multiple_Plans cte + INNER JOIN ' + @dbname + '.sys.query_store_plan qsp + ON cte.query_id = qsp.query_id + INNER JOIN ' + @dbname + '.sys.query_store_query qsq WITH (NOLOCK) + ON qsp.query_id = qsq.query_id + INNER JOIN ' + @dbname + '.sys.query_store_query_text qsqt WITH (NOLOCK) + ON qsq.query_text_id = qsqt.query_text_id + WHERE CONVERT(datetime, SWITCHOFFSET(CONVERT(datetimeoffset, qsp.last_execution_time), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) >= DATEADD(hour, -' + @timewindow + ', getdate()) + ORDER BY cte.query_id ASC + '; + + EXEC sp_executesql @sql_qs_multiple_plans; + + END; + + END + + /* + SECTION 4 + Top queries based on execution amount + */ + + IF @return_top_executed = 1 OR @return_all = 1 + + BEGIN + + SELECT 'Most executed queries in the last ' + @timewindow + ' hour(s)' AS 'Info'; + + DECLARE @sql_qs_top_nr_executions NVARCHAR(MAX); + + SET @sql_qs_top_nr_executions = + N'WITH CTE_QS_Top_Executions (plan_id, exec_count) + AS + ( + SELECT TOP ' + @topqueries + ' + qsrs.plan_id, + SUM(qsrs.count_executions) + FROM ' + @dbname + '.sys.query_store_runtime_stats qsrs WITH (NOLOCK) + INNER JOIN ' + @dbname + '.sys.query_store_runtime_stats_interval qsrsi WITH (NOLOCK) + ON qsrs.runtime_stats_interval_id = qsrsi.runtime_stats_interval_id + WHERE CONVERT(datetime, SWITCHOFFSET(CONVERT(datetimeoffset, qsrsi.end_time), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) >= DATEADD(hour, -' + @timewindow + ', getdate()) + GROUP BY qsrs.plan_id + ORDER BY SUM(qsrs.count_executions) DESC + ) + + SELECT + cte.plan_id AS ''Plan ID'', + qsp.query_id AS ''Query ID'', + qsqt.query_sql_text AS ''Statement'', + CAST(qsp.query_plan AS XML) AS ''Execution Plan'', + cte.exec_count AS ''Execution count'' + FROM CTE_QS_Top_Executions cte + INNER JOIN ' + @dbname + '.sys.query_store_plan qsp WITH (NOLOCK) + ON cte.plan_id = qsp.plan_id + INNER JOIN ' + @dbname + '.sys.query_store_query qsq WITH (NOLOCK) + ON qsp.query_id = qsq.query_id + INNER JOIN ' + @dbname + '.sys.query_store_query_text qsqt WITH (NOLOCK) + ON qsq.query_text_id = qsqt.query_text_id + '; + + EXEC sp_executesql @sql_qs_top_nr_executions; + + END; + + /* + SECTION 5 + Top queries based on average duration + */ + + IF @return_top_duration = 1 OR @return_all = 1 + + BEGIN + + SELECT 'Most expensive queries based on avg. duration in the last ' + @timewindow + ' hour(s)' AS 'Info'; + + DECLARE @sql_qs_top_avg_duration NVARCHAR(MAX); + + SET @sql_qs_top_avg_duration = + N'WITH CTE_QS_Top_Duration (plan_id, avg_duration, nr_executions, [max_duration], min_duration) + AS + ( + SELECT TOP ' + @topqueries + ' + qsrs.plan_id, + AVG(qsrs.avg_duration), + SUM(qsrs.count_executions), + MAX(qsrs.[max_duration]), + MIN(qsrs.[min_duration]) + FROM ' + @dbname + '.sys.query_store_runtime_stats qsrs WITH (NOLOCK) + INNER JOIN ' + @dbname + '.sys.query_store_runtime_stats_interval qsrsi WITH (NOLOCK) + ON qsrs.runtime_stats_interval_id = qsrsi.runtime_stats_interval_id + WHERE CONVERT(datetime, SWITCHOFFSET(CONVERT(datetimeoffset, qsrsi.end_time), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) >= DATEADD(hour, -' + @timewindow + ', getdate()) + GROUP BY qsrs.plan_id + ORDER BY AVG(qsrs.avg_duration) DESC + ) + + SELECT + cte.plan_id AS ''Plan ID'', + qsp.query_id AS ''Query ID'', + qsqt.query_sql_text AS ''Statement'', + CAST(qsp.query_plan AS XML) AS ''Execution Plan'', + cte.avg_duration AS ''Avg. Duration'', + cte.nr_executions AS ''Nr. of executions in time window'', + cte.min_duration AS ''Min. duration'', + cte.[max_duration] AS ''Max. duration'' + FROM CTE_QS_Top_Duration cte + INNER JOIN ' + @dbname + '.sys.query_store_plan qsp WITH (NOLOCK) + ON cte.plan_id = qsp.plan_id + INNER JOIN ' + @dbname + '.sys.query_store_query qsq WITH (NOLOCK) + ON qsp.query_id = qsq.query_id + INNER JOIN ' + @dbname + '.sys.query_store_query_text qsqt WITH (NOLOCK) + ON qsq.query_text_id = qsqt.query_text_id + '; + + EXEC sp_executesql @sql_qs_top_avg_duration; + + END; + + /* + SECTION 6 + Top queries based on average CPU Time + */ + + IF @return_top_cpu = 1 OR @return_all = 1 + + BEGIN + + SELECT 'Most expensive queries based on avg. CPU Time in the last ' + @timewindow + ' hour(s)' AS 'Info'; + + DECLARE @sql_qs_top_avg_cputime NVARCHAR(MAX); + + SET @sql_qs_top_avg_cputime = + N'WITH CTE_QS_Top_CPUTime (plan_id, avg_cputime, nr_executions, [max_cputime], min_cputime) + AS + ( + SELECT TOP ' + @topqueries + ' + qsrs.plan_id, + AVG(qsrs.avg_cpu_time), + SUM(qsrs.count_executions), + MAX(qsrs.[max_cpu_time]), + MIN(qsrs.[min_cpu_time]) + FROM ' + @dbname + '.sys.query_store_runtime_stats qsrs WITH (NOLOCK) + INNER JOIN ' + @dbname + '.sys.query_store_runtime_stats_interval qsrsi WITH (NOLOCK) + ON qsrs.runtime_stats_interval_id = qsrsi.runtime_stats_interval_id + WHERE CONVERT(datetime, SWITCHOFFSET(CONVERT(datetimeoffset, qsrsi.end_time), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) >= DATEADD(hour, -' + @timewindow + ', getdate()) + GROUP BY qsrs.plan_id + ORDER BY AVG(qsrs.avg_cpu_time) DESC + ) + + SELECT + cte.plan_id AS ''Plan ID'', + qsp.query_id AS ''Query ID'', + qsqt.query_sql_text AS ''Statement'', + CAST(qsp.query_plan AS XML) AS ''Execution Plan'', + cte.avg_cputime AS ''Avg. CPU Time'', + cte.nr_executions AS ''Nr. of executions in time window'', + cte.min_cputime AS ''Min. CPU Time'', + cte.[max_cputime] AS ''Max. CPU Time'' + FROM CTE_QS_Top_CPUTime cte + INNER JOIN ' + @dbname + '.sys.query_store_plan qsp WITH (NOLOCK) + ON cte.plan_id = qsp.plan_id + INNER JOIN ' + @dbname + '.sys.query_store_query qsq WITH (NOLOCK) + ON qsp.query_id = qsq.query_id + INNER JOIN ' + @dbname + '.sys.query_store_query_text qsqt WITH (NOLOCK) + ON qsq.query_text_id = qsqt.query_text_id + '; + + EXEC sp_executesql @sql_qs_top_avg_cputime; + + END + + /* + SECTION 7 + Top queries based on average logical IO reads + */ + + IF @return_top_log_read = 1 OR @return_all = 1 + + BEGIN + + SELECT 'Most expensive queries based on avg. logical read IO in the last ' + @timewindow + ' hour(s)' AS 'Info'; + + DECLARE @sql_qs_top_avg_log_io_read NVARCHAR(MAX); + + SET @sql_qs_top_avg_log_io_read = + N'WITH CTE_QS_Top_Log_IO_Read (plan_id, avg_log_io_read, nr_executions, [max_log_io_read], min_log_io_read) + AS + ( + SELECT TOP ' + @topqueries + ' + qsrs.plan_id, + AVG(qsrs.avg_logical_io_reads), + SUM(qsrs.count_executions), + MAX(qsrs.[max_logical_io_reads]), + MIN(qsrs.[min_logical_io_reads]) + FROM ' + @dbname + '.sys.query_store_runtime_stats qsrs WITH (NOLOCK) + INNER JOIN ' + @dbname + '.sys.query_store_runtime_stats_interval qsrsi WITH (NOLOCK) + ON qsrs.runtime_stats_interval_id = qsrsi.runtime_stats_interval_id + WHERE CONVERT(datetime, SWITCHOFFSET(CONVERT(datetimeoffset, qsrsi.end_time), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) >= DATEADD(hour, -' + @timewindow + ', getdate()) + GROUP BY qsrs.plan_id + ORDER BY AVG(qsrs.avg_logical_io_reads) DESC + ) + + SELECT + cte.plan_id AS ''Plan ID'', + qsp.query_id AS ''Query ID'', + qsqt.query_sql_text AS ''Statement'', + CAST(qsp.query_plan AS XML) AS ''Execution Plan'', + cte.avg_log_io_read AS ''Avg. Logical Read IO'', + cte.nr_executions AS ''Nr. of executions in time window'', + cte.min_log_io_read AS ''Min. Logical Read IO'', + cte.[max_log_io_read] AS ''Max. Logical Read IO'' + FROM CTE_QS_Top_Log_IO_Read cte + INNER JOIN ' + @dbname + '.sys.query_store_plan qsp WITH (NOLOCK) + ON cte.plan_id = qsp.plan_id + INNER JOIN ' + @dbname + '.sys.query_store_query qsq WITH (NOLOCK) + ON qsp.query_id = qsq.query_id + INNER JOIN ' + @dbname + '.sys.query_store_query_text qsqt WITH (NOLOCK) + ON qsq.query_text_id = qsqt.query_text_id + '; + + EXEC sp_executesql @sql_qs_top_avg_log_io_read; + + END; + + /* + SECTION 8 + Top queries based on average logical IO writes + */ + + IF @return_top_log_write = 1 OR @return_all = 1 + + BEGIN + + SELECT 'Most expensive queries based on avg. logical write IO in the last ' + @timewindow + ' hour(s)' AS 'Info'; + + DECLARE @sql_qs_top_avg_log_io_write NVARCHAR(MAX); + + SET @sql_qs_top_avg_log_io_write = + N'WITH CTE_QS_Top_Log_IO_write (plan_id, avg_log_io_write, nr_executions, [max_log_io_write], min_log_io_write) + AS + ( + SELECT TOP ' + @topqueries + ' + qsrs.plan_id, + AVG(qsrs.avg_logical_io_writes), + SUM(qsrs.count_executions), + MAX(qsrs.[max_logical_io_writes]), + MIN(qsrs.[min_logical_io_writes]) + FROM ' + @dbname + '.sys.query_store_runtime_stats qsrs WITH (NOLOCK) + INNER JOIN ' + @dbname + '.sys.query_store_runtime_stats_interval qsrsi WITH (NOLOCK) + ON qsrs.runtime_stats_interval_id = qsrsi.runtime_stats_interval_id + WHERE CONVERT(datetime, SWITCHOFFSET(CONVERT(datetimeoffset, qsrsi.end_time), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) >= DATEADD(hour, -' + @timewindow + ', getdate()) + GROUP BY qsrs.plan_id + ORDER BY AVG(qsrs.avg_logical_io_writes) DESC + ) + + SELECT + cte.plan_id AS ''Plan ID'', + qsp.query_id AS ''Query ID'', + qsqt.query_sql_text AS ''Statement'', + CAST(qsp.query_plan AS XML) AS ''Execution Plan'', + cte.avg_log_io_write AS ''Avg. Logical write IO'', + cte.nr_executions AS ''Nr. of executions in time window'', + cte.min_log_io_write AS ''Min. Logical write IO'', + cte.[max_log_io_write] AS ''Max. Logical write IO'' + FROM CTE_QS_Top_Log_IO_write cte + INNER JOIN ' + @dbname + '.sys.query_store_plan qsp WITH (NOLOCK) + ON cte.plan_id = qsp.plan_id + INNER JOIN ' + @dbname + '.sys.query_store_query qsq WITH (NOLOCK) + ON qsp.query_id = qsq.query_id + INNER JOIN ' + @dbname + '.sys.query_store_query_text qsqt WITH (NOLOCK) + ON qsq.query_text_id = qsqt.query_text_id + '; + + EXEC sp_executesql @sql_qs_top_avg_log_io_write; + + END; + + /* + SECTION 9 + Top queries based on average physical IO reads + */ + + IF @return_top_phys_read = 1 OR @return_all = 1 + + BEGIN + + SELECT 'Most expensive queries based on avg. physical read IO in the last ' + @timewindow + ' hour(s)' AS 'Info'; + + DECLARE @sql_qs_top_avg_phys_io_read NVARCHAR(MAX); + + SET @sql_qs_top_avg_phys_io_read = + N'WITH CTE_QS_Top_Phys_IO_read (plan_id, avg_phys_io_read, nr_executions, [max_phys_io_read], min_phys_io_read) + AS + ( + SELECT TOP ' + @topqueries + ' + qsrs.plan_id, + AVG(qsrs.avg_physical_io_reads), + SUM(qsrs.count_executions), + MAX(qsrs.[max_physical_io_reads]), + MIN(qsrs.[min_physical_io_reads]) + FROM ' + @dbname + '.sys.query_store_runtime_stats qsrs WITH (NOLOCK) + INNER JOIN ' + @dbname + '.sys.query_store_runtime_stats_interval qsrsi WITH (NOLOCK) + ON qsrs.runtime_stats_interval_id = qsrsi.runtime_stats_interval_id + WHERE CONVERT(datetime, SWITCHOFFSET(CONVERT(datetimeoffset, qsrsi.end_time), DATENAME(TzOffset, SYSDATETIMEOFFSET()))) >= DATEADD(hour, -' + @timewindow + ', getdate()) + GROUP BY qsrs.plan_id + ORDER BY AVG(qsrs.avg_logical_io_writes) DESC + ) + + SELECT + cte.plan_id AS ''Plan ID'', + qsp.query_id AS ''Query ID'', + qsqt.query_sql_text AS ''Statement'', + CAST(qsp.query_plan AS XML) AS ''Execution Plan'', + cte.avg_phys_io_read AS ''Avg. Physical read IO'', + cte.nr_executions AS ''Nr. of executions in time window'', + cte.min_phys_io_read AS ''Min. Physical read IO'', + cte.[max_phys_io_read] AS ''Max. Physical read IO'' + FROM CTE_QS_Top_Phys_IO_read cte + INNER JOIN ' + @dbname + '.sys.query_store_plan qsp WITH (NOLOCK) + ON cte.plan_id = qsp.plan_id + INNER JOIN ' + @dbname + '.sys.query_store_query qsq WITH (NOLOCK) + ON qsp.query_id = qsq.query_id + INNER JOIN ' + @dbname + '.sys.query_store_query_text qsqt WITH (NOLOCK) + ON qsq.query_text_id = qsqt.query_text_id + '; + + EXEC sp_executesql @sql_qs_top_avg_phys_io_read; + + END; + + END; +GO diff --git a/Stored_Procedure/sp_capture_login_auth.sql b/Stored_Procedure/dbo.sp_capture_login_auth.sql similarity index 100% rename from Stored_Procedure/sp_capture_login_auth.sql rename to Stored_Procedure/dbo.sp_capture_login_auth.sql diff --git a/Stored_Procedure/dbo.sp_ctrl3.sql b/Stored_Procedure/dbo.sp_ctrl3.sql new file mode 100644 index 00000000..6b62a34c --- /dev/null +++ b/Stored_Procedure/dbo.sp_ctrl3.sql @@ -0,0 +1,1222 @@ +USE master +GO +IF (OBJECT_ID('dbo.sp_ctrl3') IS NOT NULL) + DROP PROCEDURE dbo.sp_ctrl3; +GO +/* + +Copyright Daniel Hutmacher under Creative Commons 4.0 license with attribution. +http://creativecommons.org/licenses/by/4.0/ + +Source: http://sqlsunday.com/downloads/ + +DISCLAIMER: This script may not be suitable to run in a production + environment. I cannot assume any responsibility regarding + the accuracy of the output information, performance + impacts on your server, or any other consequence. If + your juristiction does not allow for this kind of + waiver/disclaimer, or if you do not accept these terms, + you are NOT allowed to store, distribute or use this + code in any way. + +USAGE: EXECUTE ctrl3 {object name} + +SHORTCUT: In SQL Server Management Studio, go to Tools -> Options + -> Environment -> Keyboard -> Query Shortcuts. + + On a shortcut location of your choice, enter the following + code, with the trailing space, without the quotes: + "EXECUTE sp_ctrl3 ". To use, highlight the name of an object + and press that keyboard shortcut. You may have to open a new + query for the change to take effect. Also, objects denoted by + schema (with a dot) need to be enclosed in quotes for this + to work. + +VERSION: 2016-07-26 + +*/ + +CREATE PROCEDURE dbo.sp_ctrl3 + @objname sysname +WITH EXECUTE AS CALLER +AS + +SET NOCOUNT ON; +SET STATISTICS XML, TIME, IO OFF; +SET DEADLOCK_PRIORITY LOW; +SET STATISTICS XML OFF; +SET LOCK_TIMEOUT 500; + +DECLARE @object_id int, + @object_id_str varchar(10), + @database_id int, + @database sysname, + @rowcount bigint=0, + @has_cols_or_params bit, + @has_indexes bit, + @has_foreign_keys bit, + @has_references bit, + @has_permissions bit, + @has_sql_module bit, + @has_data bit, + @is_tempdb bit=0, + @module_definition nvarchar(max), + @uses_ansi_nulls bit, + @uses_quoted_identifier bit, + @temp nvarchar(max); + +--- These are special (unicode) characters, used to display the graph output: +DECLARE @inf nchar(1)=NCHAR(8734), --- Infinity symbol + @hyph nchar(1)=NCHAR(8722), --- Hyphen + @pipe nchar(1)=NCHAR(8739), --- Pipe + @zero nchar(1)=NCHAR(176), --- Superscript "0". + @one nchar(1)=NCHAR(185), --- Superscript "1". + @lf nchar(1)=NCHAR(10), --- Line feed + @cr nchar(1)=NCHAR(13); --- Carriage return + +SET @object_id=OBJECT_ID(@objname); +IF (@objname LIKE '#%') + SELECT @is_tempdb=1, @object_id=OBJECT_ID('tempdb.dbo.'+@objname); + +IF (@object_id IS NULL) + SELECT @object_id=tt.type_table_object_id + FROM sys.table_types AS tt + WHERE tt.user_type_id=TYPE_ID(@objname); + +SELECT @database_id=database_id, @database=name +FROM sys.databases +WHERE @objname LIKE '#%' AND name='tempdb' OR + @objname LIKE '\[%\].%' ESCAPE '\' AND @objname LIKE '%.%.%' AND name=SUBSTRING(@objname, 2, NULLIF(CHARINDEX('].', @objname), 0)-2) OR + @objname NOT LIKE '[\[#]%' ESCAPE '\' AND @objname LIKE '%.%.%' AND name=LEFT(@objname, NULLIF(CHARINDEX('.', @objname), 0)-1) OR + @objname NOT LIKE '%.%.%' AND @objname NOT LIKE '#%' AND database_id=DB_ID(); + +SET @object_id_str=CAST(@object_id AS varchar(10)); +/* +IF (@object_id<0) BEGIN; + PRINT 'System objects are not supported.'; + RETURN; +END; +*/ +------------------------------------------------------------------------------- +--- If database object isn't found, try a plaintext search instead. + +IF (@object_id IS NULL) BEGIN; + + WITH rcte AS ( + SELECT [object_id], 0 AS line, CAST(NULL AS nvarchar(max)) AS [sql], REPLACE([definition], CHAR(13)+CHAR(10), CHAR(13)) AS remain + FROM sys.sql_modules + WHERE [definition] LIKE N'%'+@objname+'%' + + UNION ALL + + SELECT [object_id], line+1, + CAST(LEFT(remain, PATINDEX(N'%['+CHAR(10)+CHAR(13)+']%', remain)-1) AS nvarchar(max)), + CAST(SUBSTRING(remain, PATINDEX(N'%['+CHAR(10)+CHAR(13)+']%', remain)+1, LEN(remain)) AS nvarchar(max)) + FROM rcte + WHERE remain LIKE N'%'+@objname+'%') + + SELECT o.type_desc AS [Type], s.name+N'.'+o.name AS [Object], STR(line, 5, 0) AS [Line no], [sql] AS [Definition] + FROM rcte + INNER JOIN sys.objects AS o ON rcte.[object_id]=o.[object_id] + INNER JOIN sys.schemas AS s ON o.[schema_id]=s.[schema_id] + WHERE rcte.[sql] LIKE '%'+@objname+'%' + + UNION ALL + + SELECT t.type_desc, s.name+N'.'+t.name, '', ISNULL(c.name, '') + FROM sys.tables AS t + INNER JOIN sys.schemas AS s ON t.[schema_id]=s.[schema_id] + LEFT JOIN sys.columns AS c ON t.[object_id]=c.[object_id] AND c.name LIKE '%'+@objname+'%' + WHERE t.name LIKE '%'+@objname+'%' OR c.name LIKE '%'+@objname+'%' + + ORDER BY [Object], [Line no] + OPTION (MAXRECURSION 0); + + RETURN; +END; + +------------------------------------------------------------------------------- +--- Table variables to hold copies of system DMVs. The reason we use temp tables +--- is to be able to collect this data from the current database or from +--- tempdb (if it's a temp table) + +DECLARE @sysobjects TABLE ( + [schema_id] int NOT NULL, + [object_id] int NOT NULL, + principal_id int NULL, + [type] char(2) NOT NULL, + name sysname NOT NULL, + PRIMARY KEY CLUSTERED ([object_id]) +); + +DECLARE @sysschemas TABLE ( + [schema_id] int NOT NULL, + principal_id int NOT NULL, + name sysname NOT NULL, + PRIMARY KEY CLUSTERED ([schema_id]) +); + +DECLARE @syscolumns TABLE ( + [object_id] int NOT NULL, + column_id int NOT NULL, + name sysname NOT NULL, + user_type_id int NOT NULL, + system_type_id int NOT NULL, + max_length smallint NOT NULL, + [precision] tinyint NOT NULL, + scale tinyint NOT NULL, + is_sparse bit NULL, + is_nullable bit NULL, + collation_name sysname NULL, + is_ansi_padded bit NOT NULL, + xml_collection_id int NOT NULL, + default_object_id int NOT NULL, + seed_value sql_variant NULL, + increment_value sql_variant NULL, + [definition] nvarchar(max) NULL, + is_persisted bit NULL, + [type_name] sysname NOT NULL, + default_name sysname NULL, + default_is_system_named bit NULL, + current_value sql_variant NULL, + PRIMARY KEY CLUSTERED ([object_id], column_id) +); + +DECLARE @sysparameters TABLE ( + parameter_id int NOT NULL, + name sysname NOT NULL, + user_type_id int NOT NULL, + system_type_id int NOT NULL, + max_length smallint NOT NULL, + [precision] tinyint NOT NULL, + scale tinyint NOT NULL, + is_nullable bit NULL, + xml_collection_id int NOT NULL, + is_output bit NOT NULL, + is_readonly bit NOT NULL, + is_table_type bit NOT NULL, + [type_name] sysname NOT NULL, + tbl_type_cols varchar(max) NULL, + PRIMARY KEY CLUSTERED (parameter_id) +); + +DECLARE @sysindexes TABLE ( + [object_id] int NOT NULL, + index_id int NOT NULL, + name sysname NULL, + [type] tinyint NOT NULL, + [type_desc] nvarchar(120) NULL, + data_space_id int NULL, + is_primary_key bit NULL, + is_unique_constraint bit NULL, + is_unique bit NULL, + filter_definition nvarchar(max) NULL, + fill_factor tinyint NOT NULL, + [allow_row_locks] bit NULL, + [allow_page_locks] bit NULL, + is_padded bit NULL, + has_filter bit NULL, + is_system_named bit NOT NULL, + PRIMARY KEY CLUSTERED ([object_id], index_id) +); + +DECLARE @sysindexcolumns TABLE ( + [object_id] int NOT NULL, + index_id int NOT NULL, + index_column_id int NOT NULL, + column_id int NOT NULL, + key_ordinal tinyint NOT NULL, + partition_ordinal tinyint NOT NULL, + is_descending_key bit NULL, + is_included_column bit NULL, + PRIMARY KEY CLUSTERED ([object_id], index_id, key_ordinal, index_column_id) +); + +DECLARE @sysforeignkeys TABLE ( + [object_id] int NOT NULL, + name sysname NOT NULL, + parent_object_id int NOT NULL, + referenced_object_id int NOT NULL, + delete_referential_action_desc nvarchar(120) NULL, + update_referential_action_desc nvarchar(120) NULL, + is_system_named bit NOT NULL, + is_disabled bit NOT NULL, + is_not_trusted bit NOT NULL, + PRIMARY KEY CLUSTERED ([object_id]) +); + +DECLARE @sysforeignkeycols TABLE ( + constraint_object_id int NOT NULL, + constraint_column_id int NOT NULL, + parent_object_id int NOT NULL, + parent_column_id int NOT NULL, + referenced_object_id int NOT NULL, + referenced_column_id int NOT NULL, + PRIMARY KEY CLUSTERED (constraint_object_id, constraint_column_id) +); + + +DECLARE @xmlschemacollections TABLE ( + xml_collection_id int NOT NULL, + [schema_id] int NOT NULL, + name sysname NOT NULL, + PRIMARY KEY CLUSTERED (xml_collection_id) +); + +DECLARE @sysdataspaces TABLE ( + data_space_id int NOT NULL, + name sysname NOT NULL, + [type] char(2) NOT NULL, + is_default bit NOT NULL, + PRIMARY KEY CLUSTERED (data_space_id) +); + +DECLARE @sysdatabaseprincipals TABLE ( + principal_id int NOT NULL, + name sysname NOT NULL +); + +DECLARE @sysexprdependencies TABLE ( + referencing_id int NOT NULL, + referenced_id int NOT NULL, + is_schema_bound_reference bit NOT NULL, + PRIMARY KEY CLUSTERED (referencing_id, referenced_id) +); + +DECLARE @syspartitions TABLE ( + [partition_id] bigint NULL, + [object_id] int NOT NULL, + index_id int NOT NULL, + partition_number int NOT NULL, + [rows] bigint NULL, + data_compression_desc nvarchar(120) NOT NULL, + PRIMARY KEY CLUSTERED ([object_id], index_id, partition_number) +); + +DECLARE @syspartitionstats TABLE ( + [partition_id] bigint NOT NULL, + row_count bigint NULL, + in_row_used_page_count bigint NULL, + reserved_page_count bigint NULL, + row_overflow_used_page_count bigint NULL, + lob_used_page_count bigint NULL, + used_page_count bigint NULL, + PRIMARY KEY CLUSTERED ([partition_id]) +); + +DECLARE @sysdatabasepermissions TABLE ( + class tinyint NOT NULL, + class_desc nvarchar(120) NULL, + major_id int NOT NULL, + minor_id int NOT NULL, + grantee_principal_id int NOT NULL, + grantor_principal_id int NOT NULL, + [type] char(4) NOT NULL, + [permission_name] nvarchar(256) NULL, + [state] char(1) NOT NULL, + state_desc nvarchar(120) NULL, + PRIMARY KEY CLUSTERED (class, major_id, minor_id, [type], [state], grantee_principal_id) +); + +DECLARE @references TABLE ( + parent_id int NOT NULL, --- object_id of referencing object + parent_name varchar(255) NOT NULL, -- Name of referencing object + child_id int NOT NULL, --- object_id of referenced object + child_name varchar(255) NOT NULL, -- Name of referenced object + is_schemabound bit, --- Is this relation schemabound? + is_foreign_key bit, --- Is this relation a foreign key constraint? (If not, it's an SQL module) + parent_row tinyint NOT NULL, --- Parent ordinal (this child) + parent_count tinyint NOT NULL, --- Number of parents (this child) + child_row tinyint NOT NULL, --- Child ordinal (this parent) + child_count tinyint NOT NULL, --- Number of children (this parent) + is_unique bit NOT NULL, --- If the combination of referencing columns is unique + is_nullable bit NOT NULL, --- If the referencing column allows nulls + PRIMARY KEY CLUSTERED (parent_id, child_id), + UNIQUE (parent_id, child_row), + UNIQUE (child_id, parent_row) +); + +DECLARE @sysindexphysicalstats TABLE ( + [object_id] int NOT NULL, + index_id int NOT NULL, + partition_number int NOT NULL, + alloc_unit_type_desc nvarchar(60) NOT NULL, + index_depth tinyint NOT NULL, + index_level tinyint NOT NULL, + avg_fragmentation_in_percent float NULL, + min_record_size_in_bytes int NULL, + max_record_size_in_bytes int NULL, + avg_record_size_in_bytes int NULL, + PRIMARY KEY CLUSTERED ([object_id], index_id, partition_number, alloc_unit_type_desc, index_level) +); + +DECLARE @syssqlmodules TABLE ( + [definition] nvarchar(max) NULL, + uses_ansi_nulls bit NULL, + uses_quoted_identifier bit NULL +); + +DECLARE @systriggers TABLE ( + [object_id] int NOT NULL, + name sysname NOT NULL, + is_disabled bit NOT NULL, + is_instead_of_trigger bit NOT NULL, + [trigger_events] sysname NOT NULL, + PRIMARY KEY CLUSTERED ([object_id]) +); + + +------------------------------------------------------------------------------- +--- Populate DMV table variables: + +INSERT INTO @sysobjects +EXEC(' +SELECT ISNULL(tt.[schema_id], o.[schema_id]), o.[object_id], o.principal_id, o.[type], ISNULL(tt.name, o.name) +FROM '+@database+'.sys.objects AS o +LEFT JOIN '+@database+'.sys.table_types AS tt ON tt.type_table_object_id=o.[object_id]'); + +INSERT INTO @sysschemas +EXEC(' +SELECT [schema_id], principal_id, name +FROM '+@database+'.sys.schemas'); + +INSERT INTO @syscolumns +EXEC(' +SELECT c.[object_id], c.column_id, c.name, c.user_type_id, c.system_type_id, + c.max_length, c.[precision], c.scale, c.is_sparse, c.is_nullable, + c.collation_name, c.is_ansi_padded, c.xml_collection_id, c.default_object_id, + ic.seed_value, ic.increment_value, ISNULL(cc.[definition], d.[definition]), cc.is_persisted, + t.name AS [type_name], d.name AS default_name, + d.is_system_named AS default_is_system_named, NULL AS current_value +FROM '+@database+'.sys.columns AS c +LEFT JOIN '+@database+'.sys.identity_columns AS ic ON c.[object_id]=ic.[object_id] AND c.column_id=ic.column_id +LEFT JOIN '+@database+'.sys.computed_columns AS cc ON c.[object_id]=cc.[object_id] AND c.column_id=cc.column_id +LEFT JOIN '+@database+'.sys.types AS t ON c.user_type_id=t.user_type_id +LEFT JOIN '+@database+'.sys.default_constraints AS d ON d.[object_id]=c.default_object_id'); + +BEGIN TRY; + INSERT INTO @syscolumns + EXEC(' + SELECT s.[object_id], 1 AS column_id, s.name, s.user_type_id, s.system_type_id, + 8 AS max_length, s.[precision], s.scale, 0 AS is_sparse, 0 AS is_nullable, + NULL AS collation_name, 0 AS is_ansi_padded, 0 AS xml_collection_id, 0 AS default_object_id, + s.start_value AS seed_value, s.increment AS increment_value, + + ISNULL('' MINVALUE ''+CAST(NULLIF(s.minimum_value, (CASE st.name + WHEN ''tinyint'' THEN 0 + WHEN ''smallint'' THEN -32768 + WHEN ''int'' THEN -2147483648 + WHEN ''bigint'' THEN -9223372036854775808 + END)) AS varchar(40)), '''')+ + ISNULL('' MAXVALUE ''+CAST(NULLIF(s.maximum_value, (CASE st.name + WHEN ''tinyint'' THEN 255 + WHEN ''smallint'' THEN 32767 + WHEN ''int'' THEN 2147483647 + WHEN ''bigint'' THEN 9223372036854775807 + END)) AS varchar(40)), '''')+ + (CASE WHEN s.is_cycling=1 THEN '' CYCLE'' ELSE '''' END)+ + (CASE WHEN s.is_cached=0 THEN '' NOCACHE'' + WHEN s.is_cached=1 THEN ISNULL(''CACHE ''+CAST(s.cache_size AS varchar(10)), '''') + END) AS [definition], 0 AS is_persisted, + t.name AS [type_name], NULL AS default_name, 1 AS default_is_system_named, s.current_value + FROM '+@database+'.sys.sequences AS s + LEFT JOIN '+@database+'.sys.types AS t ON s.user_type_id=t.user_type_id + LEFT JOIN '+@database+'.sys.types AS st ON s.system_type_id=st.user_type_id + '); +END TRY +BEGIN CATCH; + PRINT 'sys.sequences could not be loaded.'; +END CATCH; + + +SET @temp=(CASE WHEN SERVERPROPERTY('ProductVersion')>='12' THEN 'p.is_nullable' ELSE '1' END); + +INSERT INTO @sysparameters +EXEC(' +SELECT p.parameter_id, p.name, p.user_type_id, p.system_type_id, p.max_length, p.[precision], + p.scale, '+@temp+', p.xml_collection_id, p.is_output, p.is_readonly, t.is_table_type, + ISNULL(s.name+''.'', '''')+t.name AS [type_name], + ''(''+SUBSTRING(CAST((SELECT '', ''+ttc.name + FROM '+@database+'.sys.columns AS ttc + WHERE ttc.[object_id]=tt.type_table_object_id + ORDER BY ttc.column_id + FOR XML PATH(''''), TYPE) AS varchar(max)), 3, 8000)+'')'' AS tbl_type_cols +FROM '+@database+'.sys.parameters AS p +LEFT JOIN '+@database+'.sys.types AS t ON p.user_type_id=t.user_type_id +LEFT JOIN '+@database+'.sys.table_types AS tt ON t.user_type_id=tt.user_type_id +LEFT JOIN '+@database+'.sys.schemas AS s ON t.is_table_type=1 AND t.[schema_id]=s.[schema_id] +WHERE p.[object_id]='+@object_id_str); + + +INSERT INTO @sysindexes +EXEC(' +SELECT ix.[object_id], ix.index_id, ix.name, ix.[type], ix.type_desc, ix.data_space_id, + ix.is_primary_key, ix.is_unique_constraint, ix.is_unique, ix.filter_definition, + ix.fill_factor, ix.[allow_row_locks], ix.[allow_page_locks], ix.is_padded, ix.has_filter, + ISNULL(kc.is_system_named, 0) +FROM '+@database+'.sys.indexes AS ix +LEFT JOIN '+@database+'.sys.key_constraints AS kc ON ix.[object_id]=kc.parent_object_id AND ix.name=kc.name +WHERE ix.is_hypothetical=0'); + +INSERT INTO @sysindexcolumns +EXEC(' +SELECT [object_id], index_id, index_column_id, column_id, key_ordinal, + partition_ordinal, is_descending_key, is_included_column +FROM '+@database+'.sys.index_columns'); + +INSERT INTO @sysforeignkeys +EXEC(' +SELECT [object_id], name, parent_object_id, referenced_object_id, + delete_referential_action_desc, update_referential_action_desc, + is_system_named, is_disabled, is_not_trusted +FROM '+@database+'.sys.foreign_keys'); + +INSERT INTO @sysforeignkeycols +EXEC(' +SELECT constraint_object_id, constraint_column_id, parent_object_id, + parent_column_id, referenced_object_id, referenced_column_id +FROM '+@database+'.sys.foreign_key_columns'); + +INSERT INTO @xmlschemacollections +EXEC(' +SELECT xml_collection_id, [schema_id], name +FROM '+@database+'.sys.xml_schema_collections'); + +INSERT INTO @sysdataspaces +EXEC(' +SELECT data_space_id, name, [type], is_default +FROM '+@database+'.sys.data_spaces'); + +INSERT INTO @sysdatabaseprincipals +EXEC(' +SELECT principal_id, name +FROM '+@database+'.sys.database_principals'); + +INSERT INTO @syssqlmodules +EXEC(' +SELECT [definition], uses_ansi_nulls, uses_quoted_identifier +FROM '+@database+'.sys.sql_modules +WHERE [object_id]='+@object_id_str); + +SELECT @module_definition=[definition], + @uses_ansi_nulls=uses_ansi_nulls, + @uses_quoted_identifier=uses_quoted_identifier +FROM @syssqlmodules; + +INSERT INTO @sysexprdependencies +EXEC(' +SELECT DISTINCT d.referencing_id, + ISNULL(ct.type_table_object_id, d.referenced_id), + (CASE WHEN ct.user_type_id IS NOT NULL THEN 1 ELSE d.is_schema_bound_reference END) +FROM '+@database+'.sys.sql_expression_dependencies AS d +LEFT JOIN '+@database+'.sys.table_types AS ct ON d.referenced_class=6 AND d.referenced_id =ct.user_type_id +WHERE d.referencing_class=1 AND + d.referenced_class IN (1, 6) AND referenced_id IS NOT NULL'); + +INSERT INTO @syspartitions +EXEC(' +SELECT [partition_id], [object_id], index_id, partition_number, [rows], data_compression_desc +FROM '+@database+'.sys.partitions'); + +INSERT INTO @syspartitionstats +EXEC(' +SELECT ps.[partition_id], ps.row_count, ps.in_row_used_page_count, ps.reserved_page_count, + ps.row_overflow_used_page_count, ps.lob_used_page_count, ps.used_page_count +FROM '+@database+'.sys.dm_db_partition_stats AS ps +INNER JOIN '+@database+'.sys.partitions AS p ON ps.[partition_id]=p.[partition_id]'); +/* +INSERT INTO @sysindexphysicalstats ([object_id], index_id, partition_number, alloc_unit_type_desc, + index_depth, index_level, avg_fragmentation_in_percent, min_record_size_in_bytes, + max_record_size_in_bytes, avg_record_size_in_bytes) +SELECT [object_id], index_id, partition_number, alloc_unit_type_desc, + index_depth, index_level, avg_fragmentation_in_percent, + min_record_size_in_bytes, max_record_size_in_bytes, avg_record_size_in_bytes +FROM sys.dm_db_index_physical_stats(@database_id, @object_id, NULL, NULL, DEFAULT) AS ips; +*/ +INSERT INTO @sysdatabasepermissions +EXEC(' +SELECT class, class_desc, major_id, minor_id, grantee_principal_id, + grantor_principal_id, [type], [permission_name], [state], state_desc +FROM '+@database+'.sys.database_permissions'); + +INSERT INTO @systriggers +EXEC(' +SELECT t.[object_id], t.name, t.is_disabled, t.is_instead_of_trigger, + SUBSTRING(CAST((SELECT '', ''+te.[type_desc] FROM sys.trigger_events AS te + WHERE te.[object_id]=t.[object_id] + ORDER BY te.[type] FOR XML PATH(''''), TYPE) AS sysname), 3, 256) +FROM '+@database+'.sys.triggers AS t +WHERE parent_id='+@object_id_str); + + + + + + +------------------------------------------------------------------------------- +--- Depending on object type and what relevant attributes an object has, we're +--- displaying as few recordsets as possible. + + +SELECT TOP 1 @has_cols_or_params=(CASE WHEN col.[object_id] IS NOT NULL OR par.parameter_id IS NOT NULL THEN 1 ELSE 0 END), + @has_indexes= (CASE WHEN ix.[object_id] IS NOT NULL THEN 1 ELSE 0 END), + @has_foreign_keys= (CASE WHEN fk.parent_object_id IS NOT NULL THEN 1 ELSE 0 END), + @has_references= (CASE WHEN fk.parent_object_id IS NOT NULL OR dep.referencing_id IS NOT NULL THEN 1 ELSE 0 END), + @has_permissions= (CASE WHEN per.major_id IS NOT NULL THEN 1 ELSE 0 END), + @has_sql_module= (CASE WHEN @module_definition IS NOT NULL THEN 1 ELSE 0 END), + @has_data= (CASE WHEN obj.[type] IN ('IT', 'U', 'S') OR obj.[type]='V' AND ix.index_id IS NOT NULL THEN 1 ELSE 0 END), + @rowcount= (SELECT SUM([rows]) FROM @syspartitions WHERE [object_id]=@object_id AND index_id IN (0, 1)) +FROM @sysobjects AS obj +LEFT JOIN @syscolumns AS col ON col.[object_id]=@object_id +LEFT JOIN @sysparameters AS par ON 1=1 +LEFT JOIN @sysindexes AS ix ON ix.[object_id]=@object_id AND ix.index_id!=0 -- no heaps +LEFT JOIN @sysforeignkeys AS fk ON @object_id IN (fk.parent_object_id, fk.referenced_object_id) +LEFT JOIN @sysexprdependencies AS dep ON @object_id IN (dep.referencing_id, dep.referenced_id) +LEFT JOIN @sysdatabasepermissions AS per ON per.class=1 AND per.major_id=@object_id +WHERE obj.[object_id]=@object_id; + + + + + + + + + + +--- Header: Name, owner, type, data space, options/schemabinding/compression +SELECT (CASE WHEN @is_tempdb=1 THEN '' ELSE sch.name END) AS [Schema], + obj.name AS [Object], + SUBSTRING(t.name COLLATE catalog_default, 5, LEN(t.name))+ISNULL(' ('+LOWER(ix.type_desc)+')', '') AS [Type], + obj.[object_id], + +(CASE WHEN obj.principal_id IS NULL THEN '('+own.name+')' ELSE own.name END) AS [Owner], + (CASE WHEN ix.index_id IS NOT NULL THEN 'ON '+QUOTENAME(ds.name)+ISNULL('('+c.name+')', '') ELSE '' END) AS [Data space], + ISNULL('WITH ('+NULLIF(SUBSTRING( + ISNULL(', DATA_COMPRESSION='+NULLIF(NULLIF(p.data_compression_desc, 'NONE'), 'COLUMNSTORE'), ''), + 3, 1000), '')+')', '') AS [Options], + (CASE WHEN obj.[type] IN ('IT', 'U', 'S') OR obj.[type]='V' AND ix.index_id=1 THEN + (SELECT ISNULL(CAST(NULLIF(SUM(sub.[rows]), 0) AS varchar(10))+ + (CASE WHEN COUNT(*)>1 THEN ' rows in '+CAST(COUNT(*) AS varchar(10))+' partitions' ELSE '' END), + '(empty)') + FROM @syspartitions AS sub + WHERE sub.[object_id]=@object_id AND sub.index_id IN (0, 1)) + ELSE '' + END) AS [Row count] +FROM @sysschemas AS sch +INNER JOIN @sysobjects AS obj ON sch.[schema_id]=obj.[schema_id] +LEFT JOIN @sysdatabaseprincipals AS own ON ISNULL(obj.principal_id, sch.principal_id)=own.principal_id +LEFT JOIN master.dbo.spt_values AS t ON RTRIM(LEFT(t.name, 2)) COLLATE catalog_default=obj.[type] AND t.[type]='O9T' +LEFT JOIN @sysindexes AS ix ON obj.[object_id]=ix.[object_id] AND ix.index_id IN (0, 1) +LEFT JOIN @sysdataspaces AS ds ON ix.data_space_id=ds.data_space_id +LEFT JOIN @sysindexcolumns AS pc ON ds.[type]='PS' AND ix.[object_id]=pc.[object_id] AND ix.index_id=pc.index_id AND pc.partition_ordinal>0 +LEFT JOIN @syscolumns AS c ON pc.[object_id]=c.[object_id] AND pc.column_id=c.column_id +LEFT JOIN @syspartitions AS p ON ds.[type]!='PS' AND ix.[object_id]=p.[object_id] AND ix.index_id=p.index_id +WHERE obj.[object_id]=@object_id + + + + + + + + +--- Columns: Name/computed/persisted, type/length/prec/scale, identity/default, null/sparse, collation +IF (@has_cols_or_params=1) BEGIN; + SELECT (CASE WHEN col.parameter_id IS NOT NULL AND + col.name='' AND + col.is_output=1 THEN 'RETURNS ' ELSE '' END)+ + (CASE WHEN col.name LIKE '%[^0-9a-z\_@]%' ESCAPE '\' OR col.name IN (SELECT name FROM sys.types) THEN QUOTENAME(col.name) ELSE col.name END)+ + (CASE WHEN obj.[type]!='SO' THEN ISNULL(' AS '+col.[definition]+ + (CASE col.is_persisted + WHEN 0 THEN '' + WHEN 1 THEN ' PERSISTED' END), '') ELSE '' END) AS [Column], + (CASE WHEN obj.[type]='SO' THEN 'AS ' ELSE '' END)+ + (CASE WHEN col.is_persisted IS NULL THEN + col.[type_name]+(CASE + WHEN col.user_type_id!=col.system_type_id THEN '' + WHEN col.[type_name] LIKE 'n%char%' OR col.[type_name] LIKE 'n%binary%' THEN '('+ISNULL(CAST(NULLIF(col.max_length, -1)/2 AS varchar(max)), 'max')+')' + WHEN col.[type_name] LIKE '%char%' OR col.[type_name] LIKE '%binary%' THEN '('+ISNULL(CAST(NULLIF(col.max_length, -1) AS varchar(max)), 'max')+')' + WHEN col.[type_name] IN ('numeric', 'decimal') THEN '('+CAST(col.[precision] AS varchar(max))+', '+CAST(col.scale AS varchar(max))+')' + WHEN col.[type_name]='datetime2' THEN '('+CAST(col.scale AS varchar(max))+')' + WHEN col.[type_name]='xml' THEN ISNULL('('+xsc_sch.name+'.'+xsc.name+')', '') + ELSE '' + END) ELSE '' END) AS [Datatype], + (CASE WHEN obj.[type]='SO' + THEN 'START WITH '+CAST(col.seed_value AS varchar(40))+ + ' INCREMENT BY '+CAST(col.increment_value AS varchar(40)) + ELSE ISNULL('IDENTITY('+CAST(col.seed_value AS varchar(40))+', '+CAST(col.increment_value AS varchar(40))+')', '')+ + (CASE WHEN col.default_is_system_named=0 THEN 'CONSTRAINT '+col.default_name+' ' ELSE '' END)+ + (CASE WHEN col.default_name IS NOT NULL THEN ISNULL('DEFAULT '+col.[definition], '') ELSE '' END) + END) AS [Ident/default], + (CASE WHEN obj.[type]='SO' THEN '' + WHEN col.column_id IS NULL THEN '' + WHEN col.is_sparse=1 THEN 'SPARSE NULL' + WHEN col.is_nullable=1 THEN 'NULL' + ELSE 'NOT NULL' END) AS [NULL], + ISNULL('COLLATE '+NULLIF(col.collation_name, CAST(DATABASEPROPERTYEX(DB_NAME(),'collation') AS varchar(255))), '') AS [Collation], + ISNULL(NULLIF(SUBSTRING( + (CASE WHEN (col.[type_name] LIKE '%char%' OR col.[type_name] LIKE '%bin%') AND col.is_ansi_padded=0 THEN ' /* ANSI_PADDING OFF */' ELSE '' END)+ + (CASE WHEN col.is_output=1 THEN ', OUTPUT' ELSE '' END)+ + (CASE WHEN col.is_readonly=1 THEN ', READONLY' ELSE '' END)+ + ISNULL(' /* '+col.tbl_type_cols+' */', ''), + 3, 8000), ''), '')+ + (CASE WHEN obj.[type]='SO' THEN ISNULL(' '+[definition], '') ELSE '' END) AS [Options], + (CASE WHEN obj.[type]='SO' THEN 'Current value '+CAST(col.current_value AS varchar(40)) + WHEN ROW_NUMBER() OVER (ORDER BY col.is_output, COALESCE(col.parameter_id, col.column_id+999))=COUNT(*) OVER (PARTITION BY (SELECT NULL)) THEN '' ELSE ',' END) AS [ ] + FROM (SELECT column_id, CAST(NULL AS int) AS parameter_id, name, user_type_id, system_type_id, + max_length, [precision], scale, is_sparse, is_nullable, collation_name, + is_ansi_padded, xml_collection_id, default_object_id, CAST(NULL AS bit) AS is_output, + CAST(NULL AS bit) AS is_readonly, CAST(NULL AS bit) AS is_table_type, + seed_value, increment_value, [definition], is_persisted, [type_name], + default_name, default_is_system_named, CAST(NULL AS varchar(max)) AS tbl_type_cols, + current_value + FROM @syscolumns + WHERE [object_id]=@object_id + UNION ALL + SELECT CAST(NULL AS int) AS column_id, parameter_id, name, user_type_id, system_type_id, + max_length, [precision], scale, NULL, is_nullable, NULL, + NULL, xml_collection_id, NULL, is_output, is_readonly, + is_table_type, NULL, NULL, NULL, NULL, [type_name], NULL, NULL, tbl_type_cols, + NULL AS current_value + FROM @sysparameters + ) AS col + LEFT JOIN @xmlschemacollections AS xsc ON col.xml_collection_id=xsc.xml_collection_id + LEFT JOIN @sysschemas AS xsc_sch ON xsc.[schema_id]=xsc_sch.[schema_id] + LEFT JOIN @sysobjects AS obj ON obj.[object_id]=@object_id + ORDER BY col.is_output, COALESCE(col.parameter_id, col.column_id+999); +END; + + + + + +--- Indexes: Name, constraint type, type/unique, data space, columns, included, options/compression +IF (@has_indexes=1) + WITH ixc AS ( + SELECT ic.index_id, ic.is_included_column, + ROW_NUMBER() OVER ( + PARTITION BY ic.index_id, ic.is_included_column + ORDER BY ic.key_ordinal) AS ordinal, + (CASE WHEN c.name LIKE '%[^0-9a-z\_@]%' ESCAPE '\' OR c.name IN (SELECT name FROM sys.types) THEN QUOTENAME(c.name) ELSE c.name END)+(CASE WHEN ic.is_descending_key=1 THEN ' DESC' ELSE '' END) AS name + FROM @sysindexcolumns AS ic + INNER JOIN @syscolumns AS c ON ic.[object_id]=c.[object_id] AND ic.column_id=c.column_id + WHERE ic.[object_id]=@object_id), + + rcte AS ( + SELECT index_id, is_included_column, ordinal, CAST(name AS varchar(max)) AS list + FROM ixc + WHERE ordinal=1 + + UNION ALL + + SELECT rcte.index_id, + rcte.is_included_column, + ixc.ordinal, + CAST(rcte.list+', '+ixc.name AS varchar(max)) + FROM rcte + INNER JOIN ixc ON + rcte.index_id=ixc.index_id AND + rcte.is_included_column=ixc.is_included_column AND + rcte.ordinal+1=ixc.ordinal) + + SELECT (CASE WHEN ix.is_primary_key=0 AND ix.is_unique_constraint=0 AND ix.is_unique=1 THEN 'UNIQUE ' ELSE '' END)+ + (CASE WHEN ix.is_primary_key=0 AND ix.is_unique_constraint=0 AND ix.[type]=1 THEN 'CLUSTERED ' ELSE '' END)+ + (CASE WHEN ix.[type]>=3 THEN ix.[type_desc]+' ' ELSE '' END)+ + (CASE WHEN 1 IN (ix.is_primary_key, ix.is_unique_constraint) THEN 'CONSTRAINT' ELSE 'INDEX' END) AS [Type], + (CASE WHEN ix.is_system_named=0 THEN ix.name ELSE '' END) AS [Index/constraint name], + (CASE WHEN ix.is_primary_key=1 THEN 'PRIMARY KEY '+ix.type_desc + WHEN ix.is_unique_constraint=1 THEN 'UNIQUE CONSTRAINT '+ix.type_desc + ELSE '' END) AS [Constraint type], + ISNULL('('+(SELECT TOP 1 rcte.list FROM rcte WHERE rcte.index_id=ix.index_id AND rcte.is_included_column=0 ORDER BY rcte.ordinal DESC)+')', '') AS [Index columns], + ISNULL('INCLUDE ('+(SELECT TOP 1 rcte.list FROM rcte WHERE rcte.index_id=ix.index_id AND rcte.is_included_column=1 AND ix.[type] IN (1, 2) ORDER BY rcte.ordinal DESC)+')', '') AS [Includes], + ISNULL(' WHERE '+ix.filter_definition COLLATE database_default, '') AS [Filter], + (CASE WHEN ix.[type] IN (1, 2) THEN 'WITH ('+ + 'FILLFACTOR='+ISNULL(NULLIF(CAST(ix.fill_factor AS varchar(max)), '0'), '100')+ + ', ALLOW_ROW_LOCKS='+(CASE ix.[allow_row_locks] WHEN 1 THEN 'ON' ELSE 'OFF' END)+ + ', ALLOW_PAGE_LOCKS='+(CASE ix.[allow_page_locks] WHEN 1 THEN 'ON' ELSE 'OFF' END)+ + ', PAD_INDEX='+(CASE ix.is_padded WHEN 1 THEN 'ON' ELSE 'OFF' END)+ + ISNULL(', DATA_COMPRESSION='+NULLIF(NULLIF(p.data_compression_desc, 'NONE'), 'COLUMNSTORE'), '')+')' ELSE '' END) AS [Options], + (CASE WHEN ix.index_id IS NOT NULL AND ds.is_default=0 THEN 'ON '+QUOTENAME(ds.name)+ISNULL('('+c.name+')', '') ELSE '' END) AS [Data space], + (SELECT ISNULL(CAST(SUM(sub.[rows]) AS varchar(10))+ + ISNULL(' rows in '+CAST(NULLIF(COUNT(*), 1) AS varchar(10))+' partitions', ''), '') + FROM @syspartitions AS sub + WHERE sub.[object_id]=@object_id AND sub.index_id=ix.index_id AND ix.has_filter=1) AS [Filtered rows] + FROM @sysindexes AS ix + LEFT JOIN @sysdataspaces AS ds ON ix.data_space_id=ds.data_space_id + LEFT JOIN @sysindexcolumns AS pc ON ds.[type]='PS' AND ix.[object_id]=pc.[object_id] AND ix.index_id=pc.index_id AND pc.partition_ordinal>0 + LEFT JOIN @syscolumns AS c ON pc.[object_id]=c.[object_id] AND pc.column_id=c.column_id + LEFT JOIN @syspartitions AS p ON ds.[type]!='PS' AND ix.[object_id]=p.[object_id] AND ix.index_id=p.index_id + WHERE ix.[object_id]=@object_id AND ix.index_id>0 + ORDER BY (CASE WHEN ix.is_primary_key=1 THEN 1 + WHEN ix.is_unique_constraint=1 THEN 2 + ELSE 3 END), ix.[type], ix.name; + + + + + + +--- Foreign keys constraints: Constraint name, columns, references, ref.columns, on update/delete, options (enabled, for replication) +IF (@has_foreign_keys=1) + WITH cols AS ( + SELECT fkc.constraint_object_id, fkc.constraint_column_id, + CAST((CASE WHEN pc.name LIKE '%[^0-9a-z\_@]%' ESCAPE '\' OR pc.name IN (SELECT name FROM sys.types) THEN QUOTENAME(pc.name) ELSE pc.name END) AS varchar(max)) AS parent_cols, + CAST((CASE WHEN rc.name LIKE '%[^0-9a-z\_@]%' ESCAPE '\' OR rc.name IN (SELECT name FROM sys.types) THEN QUOTENAME(rc.name) ELSE rc.name END) AS varchar(max)) AS referenced_cols + FROM @sysforeignkeycols AS fkc + INNER JOIN @syscolumns AS pc ON fkc.parent_object_id=pc.[object_id] AND fkc.parent_column_id=pc.column_id + INNER JOIN @syscolumns AS rc ON fkc.referenced_object_id=rc.[object_id] AND fkc.referenced_column_id=rc.column_id + WHERE fkc.constraint_column_id=1 AND + @object_id IN (fkc.parent_object_id, fkc.referenced_object_id) + + UNION ALL + + SELECT fkc.constraint_object_id, fkc.constraint_column_id, + CAST(cols.parent_cols+', '+pc.name AS varchar(max)) AS parent_cols, + CAST(cols.referenced_cols+', '+rc.name AS varchar(max)) AS referenced_cols + FROM cols + INNER JOIN @sysforeignkeycols AS fkc ON cols.constraint_object_id=fkc.constraint_object_id AND cols.constraint_column_id+1=fkc.constraint_column_id + INNER JOIN @syscolumns AS pc ON fkc.parent_object_id=pc.[object_id] AND fkc.parent_column_id=pc.column_id + INNER JOIN @syscolumns AS rc ON fkc.referenced_object_id=rc.[object_id] AND fkc.referenced_column_id=rc.column_id) + + SELECT ps.name+'.'+p.name AS [Referencing object], + fk.name AS [Foreign key constraint], + 'FOREIGN KEY ('+(SELECT TOP 1 parent_cols FROM cols WHERE cols.constraint_object_id=fk.[object_id] ORDER BY cols.constraint_column_id DESC)+')' AS [Referencing columns], + 'REFERENCES '+rs.name+'.'+r.name AS [Referenced object], + '('+(SELECT TOP 1 referenced_cols FROM cols WHERE cols.constraint_object_id=fk.[object_id] ORDER BY cols.constraint_column_id DESC)+')' AS [Referenced columns], + SUBSTRING(ISNULL(' ON DELETE '+NULLIF(REPLACE(fk.delete_referential_action_desc, '_', ' '), 'NO ACTION'), '')+ + ISNULL(' ON UPDATE '+NULLIF(REPLACE(fk.update_referential_action_desc, '_', ' '), 'NO ACTION'), ''), 2, 100)+ + (CASE WHEN 1 IN (fk.is_disabled, fk.is_not_trusted) THEN ' -- ' ELSE '' END)+ + (CASE WHEN fk.is_disabled=1 THEN ' DISABLED' + WHEN fk.is_not_trusted=1 THEN ' NOT TRUSTED' ELSE '' END) AS [Options] + FROM @sysforeignkeys AS fk + INNER JOIN @sysobjects AS p ON fk.parent_object_id=p.[object_id] + INNER JOIN @sysschemas AS ps ON p.[schema_id]=ps.[schema_id] + INNER JOIN @sysobjects AS r ON fk.referenced_object_id=r.[object_id] + INNER JOIN @sysschemas AS rs ON r.[schema_id]=rs.[schema_id] + WHERE @object_id IN (fk.parent_object_id, fk.referenced_object_id) + ORDER BY (CASE WHEN fk.parent_object_id=@object_id THEN 1 ELSE 2 END), fk.name; + + + + + +--- Triggers: name, type and actions +IF (EXISTS (SELECT NULL FROM @systriggers)) + SELECT s.name+'.'+t.name AS [Trigger], + (CASE WHEN t.is_instead_of_trigger=1 THEN 'INSTEAD OF ' ELSE 'FOR ' END)+t.[trigger_events] AS [Trigger action(s)], + (CASE WHEN t.is_disabled=1 THEN 'Disabled' ELSE '' END) AS [ ] + FROM @systriggers AS t + LEFT JOIN @sysobjects AS o ON t.[object_id]=o.[object_id] + LEFT JOIN @sysschemas AS s ON o.[schema_id]=s.[schema_id] + ORDER BY t.name; + + + + + + +--- Relations between objects (referencing or referenced) including foreign key constraints: +IF (@has_references=1) BEGIN; + WITH refs1 + AS (--- Expression dependencies (i.e. modules that refer to other modules, + --- tables, functions, check constraints, etc: + SELECT DISTINCT dep.referencing_id, + dep.referenced_id, + dep.is_schema_bound_reference AS is_schemabound, + 0 AS is_foreign_key, + CAST(NULL AS varchar(255)) AS column_list, + 0 AS is_nullable + FROM @sysexprdependencies AS dep + WHERE dep.referencing_id!=dep.referenced_id + + UNION + + --- ... and foreign key constraints that define dependencies between tables: + SELECT fk.parent_object_id AS referencing_id, + fk.referenced_object_id, + 0 AS is_schemabound, + 1 AS is_foreign_key, + CAST(c.list AS varchar(255)) AS column_list, + (SELECT MIN(CAST(n.is_nullable AS int)) + FROM @sysforeignkeycols AS fkc + INNER JOIN @syscolumns AS n ON + fkc.parent_object_id=n.[object_id] AND + fkc.parent_column_id=n.column_id + WHERE fk.[object_id]=fkc.constraint_object_id) AS is_nullable + FROM @sysforeignkeys AS fk + CROSS APPLY ( + SELECT CAST(fkc.parent_column_id AS varchar(4))+';' + FROM @sysforeignkeycols AS fkc + WHERE fkc.constraint_object_id=fk.[object_id] + ORDER BY fkc.parent_column_id + FOR XML PATH(''), TYPE) AS c(list) + WHERE fk.parent_object_id!=fk.referenced_object_id), + + uqix + AS (--- These are all the unique column combinations in each table. + SELECT DISTINCT ix.[object_id], CAST(c.list AS varchar(255)) AS column_list + FROM @sysindexes AS ix + CROSS APPLY ( + SELECT CAST(ixc.column_id AS varchar(4))+';' + FROM @sysindexcolumns AS ixc + WHERE ixc.[object_id]=ix.[object_id] AND + ixc.index_id=ix.index_id AND + ixc.is_included_column=0 + ORDER BY ixc.column_id + FOR XML PATH(''), TYPE) AS c(list) + WHERE ix.is_unique=1), + + refs2 + AS (--- Check for matching unique indexes on the referencing table columns. Also, if + --- there's more than one reference between the two tables, or more than one unique + --- index on the referencing table, make the result set distinct using GROUP BY. + SELECT refs1.referencing_id AS parent_id, + ps.name+'.'+p.name AS parent_name, + refs1.referenced_id AS child_id, + cs.name+'.'+c.name AS child_name, + CAST(MAX(refs1.is_schemabound) AS bit) AS is_schemabound, + CAST(MAX(refs1.is_foreign_key) AS bit) AS is_foreign_key, + CAST(MAX((CASE WHEN uqix.[object_id] IS NOT NULL THEN 1 ELSE 0 END)) AS bit) AS is_unique, + CAST(MAX(refs1.is_nullable) AS bit) AS is_nullable + FROM refs1 + INNER JOIN @sysobjects AS p ON p.[object_id]=refs1.referencing_id + INNER JOIN @sysschemas AS ps ON p.[schema_id]=ps.[schema_id] + INNER JOIN @sysobjects AS c ON c.[object_id]=refs1.referenced_id + INNER JOIN @sysschemas AS cs ON c.[schema_id]=cs.[schema_id] + LEFT JOIN uqix ON uqix.[object_id]=p.[object_id] AND refs1.column_list=uqix.column_list + GROUP BY refs1.referencing_id, refs1.referenced_id, + ps.name, p.name, cs.name, c.name), + + refs3 + AS (--- Add ROW_NUMBER() and COUNT(*) OVER to count number of children + --- per parent and number of parents per child. This is used to + --- format the output properly. + SELECT parent_id, parent_name, + ROW_NUMBER() OVER (PARTITION BY child_id ORDER BY parent_name) AS parent_row, + COUNT(*) OVER (PARTITION BY child_id) AS parent_count, + child_id, child_name, + ROW_NUMBER() OVER (PARTITION BY parent_id ORDER BY child_name) AS child_row, + COUNT(*) OVER (PARTITION BY parent_id) AS child_count, + is_schemabound, is_foreign_key, is_unique, is_nullable + FROM refs2) + + --- Store everything from refs3 in a work table for performance: + INSERT INTO @references + (parent_id, parent_name, child_id, child_name, is_schemabound, is_nullable, + is_foreign_key, parent_row, parent_count, child_row, child_count, is_unique) + SELECT parent_id, parent_name, child_id, child_name, is_schemabound, is_nullable, + is_foreign_key, parent_row, parent_count, child_row, child_count, is_unique + FROM refs3 AS r; + + --- "parents" contains the first and second-order parent levels (r2 and r1), + --- where "parents" are referencing objects and "children" are the referenced objects. + WITH [rowcount] AS ( + SELECT [object_id], ' ('+CAST(SUM([rows]) AS varchar(10))+')' AS [rowcount] + FROM @syspartitions + WHERE index_id IN (0, 1) + GROUP BY [object_id], index_id + HAVING SUM([rows])!=0 + ), + + parents AS ( + SELECT --- Ordinal + ROW_NUMBER() OVER (ORDER BY r2.parent_name, r1.parent_name)-COUNT(*) OVER (PARTITION BY NULL)/2 AS ordinal, + + --- Level -2 + ISNULL(r1.parent_name+ISNULL(+c1.[rowcount], ''), '') AS obj2, + r1.is_foreign_key AS fk2, + r1.is_schemabound AS sb2, + r1.is_unique AS uq2, + r1.is_nullable AS n2, + + --- Spacer + (CASE WHEN r1.parent_count=0 THEN '' + WHEN r1.parent_count=1 THEN @hyph + WHEN r1.parent_row=1 THEN '\' + WHEN r1.parent_row=r1.parent_count THEN '/' + WHEN r1.child_id IS NOT NULL THEN @pipe + ELSE '' END) AS spacer, + + --- Level -1 + (CASE WHEN r1.parent_row=r1.parent_count/2+1 OR r1.child_id IS NULL THEN r2.parent_name+ISNULL(+c2.[rowcount], '') ELSE '' END) AS obj1, + r2.is_foreign_key AS fk1, + r2.is_schemabound AS sb1, + r2.is_unique AS uq1, + r2.is_nullable AS n1 + FROM @references AS r1 + RIGHT JOIN @references AS r2 ON r1.child_id=r2.parent_id + LEFT JOIN [rowcount] AS c1 ON r1.parent_id=c1.[object_id] + LEFT JOIN [rowcount] AS c2 ON r2.parent_id=c2.[object_id] + WHERE r2.child_id=@object_id), + + --- "children" contains the first and second-order child levels (r3 and r4): + children AS ( + SELECT --- Ordinal + ROW_NUMBER() OVER (ORDER BY r3.child_name, r4.child_name)-COUNT(*) OVER (PARTITION BY NULL)/2 AS ordinal, + + --- Level +1 + (CASE WHEN r4.child_row=r4.child_count/2+1 OR r4.parent_id IS NULL THEN r3.child_name+ISNULL(+c3.[rowcount], '') ELSE '' END) AS obj1, + r3.is_foreign_key AS fk1, + r3.is_schemabound AS sb1, + r3.is_unique AS uq1, + r3.is_nullable AS n1, + + --- Spacer + (CASE WHEN r4.child_count=0 THEN '' + WHEN r4.child_count=1 THEN @hyph + WHEN r4.child_row=1 THEN '/' + WHEN r4.child_row=r4.child_count THEN '\' + WHEN r4.parent_id IS NULL THEN '' + ELSE @pipe END) AS spacer, + + --- Level +2 + ISNULL(r4.child_name+ISNULL(+c4.[rowcount], ''), '') AS obj2, + r4.is_foreign_key AS fk2, + r4.is_schemabound AS sb2, + r4.is_unique AS uq2, + r4.is_nullable AS n2 + FROM @references AS r3 + LEFT JOIN @references AS r4 ON r3.child_id=r4.parent_id + LEFT JOIN [rowcount] AS c3 ON r3.child_id=c3.[object_id] + LEFT JOIN [rowcount] AS c4 ON r4.child_id=c4.[object_id] + WHERE r3.parent_id=@object_id) + + --- Putting it all together: + SELECT --- Second-order parent and spacer: + ISNULL(p.obj2, '') AS [Referencing...], + + (CASE WHEN p.obj2!='' AND p.fk2=1 AND p.n2=1 THEN @zero + WHEN p.obj2!='' AND p.fk2=1 AND p.n2=0 THEN @one ELSE N'' END)+ + (CASE WHEN p.obj2!='' AND p.fk2=1 AND p.uq2=0 THEN @inf ELSE N'' END)+ + (CASE WHEN p.obj2!='' AND p.fk2=1 THEN @hyph+@one + WHEN p.sb2=1 THEN N'*' ELSE N'' END) AS [ ], + ISNULL(p.spacer, '') AS [ ], + + --- First-order parent and spacer: + ISNULL(p.obj1, '') AS [ ], + (CASE WHEN p.obj1!='' AND p.fk1=1 AND p.n1=1 THEN @zero + WHEN p.obj1!='' AND p.fk1=1 AND p.n1=0 THEN @one ELSE N'' END)+ + (CASE WHEN p.obj1!='' AND p.fk1=1 AND p.uq1=0 THEN @inf ELSE N'' END)+ + (CASE WHEN p.obj1!='' AND p.fk1=1 THEN @hyph+@one + WHEN p.sb1=1 THEN N'*' ELSE N'' END) AS [ ], + (CASE WHEN COUNT(p.ordinal) OVER(PARTITION BY NULL)=1 AND p.ordinal=MIN(p.ordinal) OVER (PARTITION BY NULL) THEN @hyph + WHEN p.ordinal=MIN(p.ordinal) OVER (PARTITION BY NULL) THEN '\' + WHEN p.ordinal=MAX(p.ordinal) OVER (PARTITION BY NULL) THEN '/' + WHEN p.ordinal IS NOT NULL THEN @pipe ELSE '' END) AS [ ], + + --- The object itself: + (CASE WHEN n.ordinal=1 THEN sch.name+'.'+obj.name+ISNULL(rc.[rowcount], '') ELSE '' END) AS [Object], + + --- First-order spacer and child: + (CASE WHEN COUNT(c.ordinal) OVER(PARTITION BY NULL)=1 AND c.ordinal=MIN(c.ordinal) OVER (PARTITION BY NULL) THEN @hyph + WHEN c.ordinal=MIN(c.ordinal) OVER (PARTITION BY NULL) THEN '/' + WHEN c.ordinal=MAX(c.ordinal) OVER (PARTITION BY NULL) THEN '\' + WHEN c.ordinal IS NOT NULL THEN @pipe ELSE '' END) AS [ ], + (CASE WHEN c.obj1!='' AND c.fk1=1 AND c.n1=1 THEN @zero + WHEN c.obj1!='' AND c.fk1=1 AND c.n1=0 THEN @one ELSE N'' END)+ + (CASE WHEN c.obj1!='' AND c.fk1=1 AND c.uq1=0 THEN @inf ELSE N'' END)+ + (CASE WHEN c.obj1!='' AND c.fk1=1 THEN @hyph+@one + WHEN c.sb1=1 THEN N'*' ELSE N'' END) AS [ ], + + ISNULL(c.obj1, '') AS [ ], + + --- Second-order spacer and child: + ISNULL(c.spacer, '') AS [ ], + (CASE WHEN c.obj2!='' AND c.fk2=1 AND c.n2=1 THEN @zero + WHEN c.obj2!='' AND c.fk2=1 AND c.n2=0 THEN @one ELSE N'' END)+ + (CASE WHEN c.obj2!='' AND c.fk2=1 AND c.uq2=0 THEN @inf ELSE N'' END)+ + (CASE WHEN c.obj2!='' AND c.fk2=1 THEN @hyph+@one + WHEN c.sb2=1 THEN N'*' ELSE N'' END) AS [ ], + + ISNULL(c.obj2, '') AS [... referenced] + FROM (--- This is a list of all ordinals, used as a "frame" for the + --- recordset, to which we join "parents" and "children": + SELECT ordinal FROM parents UNION + SELECT ordinal FROM children) AS n + INNER JOIN @sysobjects AS obj ON obj.[object_id]=@object_id + INNER JOIN @sysschemas AS sch ON obj.[schema_id]=sch.[schema_id] + LEFT JOIN [rowcount] AS rc ON rc.[object_id]=@object_id + LEFT JOIN parents AS p ON p.ordinal=n.ordinal + LEFT JOIN children AS c ON c.ordinal=n.ordinal + --- ... and order the output: + ORDER BY n.ordinal; +END; + + + + + + + +--- Permissions +IF (@has_permissions=1) + WITH list AS ( + SELECT p.class, (CASE p.class + WHEN 1 THEN s.name+'.'+o.name + WHEN 3 THEN 'SCHEMA::'+s.name + WHEN 0 THEN 'DATABASE::'+DB_NAME() END) AS securable, + ROW_NUMBER() OVER ( + PARTITION BY p.class, p.major_id, p.grantee_principal_id, p.grantor_principal_id, p.[state] + ORDER BY p.[permission_name], p.minor_id) AS ordinal, + p.grantee_principal_id, + p.grantor_principal_id, + p.[state], + p.[permission_name] COLLATE database_default+ISNULL('('+c.name+')', '') AS [permission_name] + FROM @sysdatabasepermissions AS p + INNER JOIN @sysobjects AS o ON o.[object_id]=@object_id + INNER JOIN @sysschemas AS s ON o.[schema_id]=s.[schema_id] + LEFT JOIN @syscolumns AS c ON c.[object_id]=o.[object_id] AND p.minor_id=c.column_id + WHERE (p.class=1 AND p.major_id=o.[object_id] OR + p.class=3 AND p.major_id=o.[schema_id] OR + p.class=0) AND + p.[type] IN (SELECT [type] COLLATE database_default FROM sys.fn_builtin_permissions('OBJECT'))), + + rcte AS ( + SELECT class, securable, ordinal, grantee_principal_id, grantor_principal_id, [state], CAST([permission_name] AS varchar(max)) AS list + FROM list + WHERE ordinal=1 + + UNION ALL + + SELECT list.class, list.securable, list.ordinal, rcte.grantee_principal_id, rcte.grantor_principal_id, rcte.[state], CAST(rcte.list+', '+list.[permission_name] AS varchar(max)) + FROM rcte + INNER JOIN list ON + list.securable=rcte.securable AND + list.grantee_principal_id=rcte.grantee_principal_id AND + list.grantor_principal_id=rcte.grantor_principal_id AND + list.[state]=rcte.[state] AND + list.ordinal=rcte.ordinal+1) + + SELECT (CASE p.[state] + WHEN 'D' THEN 'DENY' + WHEN 'G' THEN 'GRANT' + WHEN 'W' THEN 'GRANT' END) AS [Grant/Deny], + (CASE WHEN obj.[type]='FN' AND px.list='EXECUTE, REFERENCES' THEN 'ALL' + WHEN obj.[type] IN ('IF', 'TF', 'U', 'V') AND px.list='DELETE, INSERT, REFERENCES, SELECT, UPDATE' THEN 'ALL' + ELSE px.list END) AS [Permission], + 'ON '+p.securable AS [Object], + 'TO '+QUOTENAME(grantee.name) AS [Principal], + LTRIM((CASE WHEN p.[state]='W' THEN ' WITH GRANT OPTION' ELSE '' END)+ + (CASE WHEN grantor.name!='dbo' THEN ' AS '+QUOTENAME(grantor.name) ELSE '' END)) AS [Options] + FROM rcte AS p + INNER JOIN @sysobjects AS obj ON obj.[object_id]=@object_id + INNER JOIN @sysschemas AS sch ON obj.[schema_id]=sch.[schema_id] + LEFT JOIN @sysdatabaseprincipals AS grantee ON p.grantee_principal_id=grantee.principal_id + LEFT JOIN @sysdatabaseprincipals AS grantor ON p.grantor_principal_id=grantor.principal_id + CROSS APPLY (SELECT TOP 1 list + FROM rcte + WHERE rcte.[state]=p.[state] AND + rcte.grantee_principal_id=p.grantee_principal_id AND + rcte.grantor_principal_id=p.grantor_principal_id + ORDER BY rcte.ordinal DESC) AS px + WHERE p.ordinal=1 + ORDER BY (CASE p.class WHEN 1 THEN 1 WHEN 3 THEN 2 ELSE 3 END), p.securable, grantee.name, + (CASE p.[state] WHEN 'G' THEN 1 WHEN 'W' THEN 2 WHEN 'D' THEN 3 END), grantor.name; + + + + + +IF (@has_data=1 AND @rowcount>0) + SELECT ISNULL(ix.name, '') AS [Index/heap], + + --- Partition number, if there are partitions: + (CASE COUNT(*) OVER (PARTITION BY p.[object_id], p.index_id) + WHEN 1 THEN '' + ELSE CAST(p.partition_number AS varchar(10)) + END) AS [Partition], + + --- Storage properties: + ISNULL(NULLIF(NULLIF(p.data_compression_desc, 'NONE'), 'COLUMNSTORE'), '') AS [Compression], + ds.name+ISNULL('('+pc.name+')', '') AS [Data space], + (CASE WHEN ix.type_desc!='HEAP' THEN STR(ISNULL(NULLIF(ix.fill_factor, 0), 100), 4, 0)+'%' ELSE '' END) AS [Fill factor], + + --- The raw numbers: + ps.row_count AS [Row count], + ISNULL(STR(NULLIF(1.0*ps.reserved_page_count*8/1024, 0), 12, 2)+' MB', '') AS [Reserved], + ISNULL(STR(NULLIF(1.0*ps.in_row_used_page_count*8/1024, 0), 12, 2)+' MB', '') AS [In-row used], + ISNULL(STR(NULLIF(1.0*ps.row_overflow_used_page_count*8/1024, 0), 12, 2)+' MB', '') AS [Row-overflow used], + ISNULL(STR(NULLIF(1.0*ps.lob_used_page_count*8/1024, 0), 12, 2)+' MB', '') AS [Out-of-row used], + ISNULL(STR(NULLIF(1.0*ps.used_page_count*8/1024, 0), 12, 2)+' MB', '') AS [Total used], + + --- Physical index statistics + ISNULL(STR(ips.avg_fragmentation_in_percent, 4, 1)+'%', '') AS [Avg fragm.], + ips.index_depth AS [Index depth] + + FROM @syspartitionstats AS ps + INNER JOIN @syspartitions AS p ON ps.[partition_id]=p.[partition_id] + LEFT JOIN @sysindexes AS ix ON p.[object_id]=ix.[object_id] AND p.index_id=ix.index_id + --- Data space is either a file group or a partition function: + LEFT JOIN @sysdataspaces AS ds ON ix.data_space_id=ds.data_space_id + --- This is the partitioning column: + LEFT JOIN @sysindexcolumns AS ixc ON ix.[object_id]=ixc.[object_id] AND + ix.index_id=ixc.index_id AND ixc.partition_ordinal>0 + LEFT JOIN @syscolumns AS pc ON pc.[object_id]=@object_id AND pc.column_id=ixc.column_id + LEFT JOIN @sysindexphysicalstats AS ips ON + ips.[object_id]=@object_id AND + ips.index_id=p.index_id AND + ips.partition_number=p.partition_number + WHERE p.[object_id]=@object_id + ORDER BY ix.index_id, p.partition_number; + + + + +IF (@has_sql_module=1) BEGIN; + WITH r AS ( + SELECT -3 AS [row], CAST('SET '+NULLIF(SUBSTRING( + (CASE WHEN @uses_ansi_nulls=1 THEN ', ANSI_NULLS' ELSE '' END)+ + (CASE WHEN @uses_quoted_identifier=1 THEN ', QUOTED_IDENTIFIER' ELSE '' END), 3, 1000), '')+ + ' ON;' AS nvarchar(max)) AS rowData, + CAST(NULL AS nvarchar(max)) AS remain + UNION ALL + SELECT -3 AS [row], CAST('SET '+NULLIF(SUBSTRING( + (CASE WHEN @uses_ansi_nulls=0 THEN ', ANSI_NULLS' ELSE '' END)+ + (CASE WHEN @uses_quoted_identifier=0 THEN ', QUOTED_IDENTIFIER' ELSE '' END), 3, 1000), '')+ + ' OFF;' AS nvarchar(max)) AS rowData, + CAST(NULL AS nvarchar(max)) AS remain + UNION ALL + + SELECT -2 AS [row], CAST('GO' AS nvarchar(max)), CAST(NULL AS nvarchar(max)) + UNION ALL + SELECT -1 AS [row], CAST('' AS nvarchar(max)), CAST(NULL AS nvarchar(max)) + UNION ALL + + SELECT 0 AS [row], CAST(NULL AS nvarchar(max)) AS rowData, @module_definition AS remain + UNION ALL + SELECT [row]+1, LEFT(remain, CHARINDEX(@lf, remain+@lf)-1), + SUBSTRING(remain, CHARINDEX(@lf, remain+@lf)+1, LEN(remain)) + FROM r + WHERE NULLIF(remain, '') IS NOT NULL AND [row]<32) + + SELECT (CASE WHEN [row]<0 THEN '' ELSE STR([row], 4, 0) END) AS Line, + REPLACE(rowData, @cr, N'') AS [Source code] + FROM r + WHERE [row]>=(SELECT MIN([row]) FROM r WHERE [row]>0 AND REPLACE(rowData, @cr, N'')!='') AND [row]<32 OR [row]<0 AND rowData IS NOT NULL + UNION ALL + SELECT TOP 1 ' ...' AS [row], N'' + FROM r + WHERE [row]>=15 + ORDER BY 1 + OPTION (MAXRECURSION 0); +END; + +GO + + + + + + + + +--- This marks master.dbo.sp_ctrl3 as a "system object", which makes +--- it accessible from any database without the "master." prefix. It +--- also sets the execution context of the procedure to the database +--- where it was called. +--- +--- NOTE: sp_MS_marksystemobject is an undocumented, unsupported +--- feature of SQL Server. + +EXECUTE sys.sp_MS_marksystemobject @objname=N'sp_ctrl3'; +GO diff --git a/Stored_Procedure/dbo.sp_foreign_key$batch_drop_and_recreate.sql b/Stored_Procedure/dbo.sp_foreign_key$batch_drop_and_recreate.sql new file mode 100644 index 00000000..e849ba8a --- /dev/null +++ b/Stored_Procedure/dbo.sp_foreign_key$batch_drop_and_recreate.sql @@ -0,0 +1,183 @@ +/* +Author: Louis Davidson +Original link: http://sqlblog.com/blogs/louis_davidson/archive/2017/06/15/utility-to-temporarily-drop-foreign-key-constraints-on-a-set-of-tables.aspx +Desctiption: Utility to temporarily drop FOREIGN KEY constraints on a set of tables +*/ + + +--Uses Object Created in Utility-ForeignKey$Scripting.sql, available here: https://www.dropbox.com/s/8hj1vfqpidb3d5i/Utility-ForeignKey%24Scripting.sql?dl=0 + + +IF OBJECT_ID('utility.foreign_key$batch_drop', 'P') IS NULL +EXECUTE('CREATE PROCEDURE utility.foreign_key$batch_drop as SELECT 1'); +GO + +ALTER PROCEDURE utility.foreign_key$batch_drop +( + @table_Schema sysname = '%', + @table_Name sysname = '%', + @add_to_history_flag BIT = 0, + @force_replace_status VARCHAR(20) = 'AS_WAS' --ENABLED, UNTRUSTED, DISABLED +) AS +-- ---------------------------------------------------------------- +-- Used to drop foreign keys, saving off what to recreate by batch name +-- +-- 2017 Louis Davidson - drsql.org +-- ---------------------------------------------------------------- + +BEGIN + IF OBJECT_ID('Utility.foreign_key$batch_drop_toRestore') IS NULL + EXEC (' + CREATE TABLE Utility.foreign_key$batch_drop_toRestore + ( + table_schema sysname NOT null, + table_name sysname NOT null, + constraint_name sysname NOT null, + recreate_script NVARCHAR(MAX) NOT null, + disabled_flag BIT NOT null, + trusted_flag bit NOT NULL + ) + ') + ELSE + IF @add_to_history_flag = 0 + BEGIN + THROW 50000,'Parameter @add_to_history_flag set to only allow initialize case',1; + RETURN -100 + END + + set nocount on + declare @statements cursor + SET @statements = CURSOR FOR + WITH FK AS ( + SELECT OBJECT_SCHEMA_NAME(parent_object_id) AS schemaName, OBJECT_NAME(parent_object_id) AS tableName, + NAME AS constraintName, foreign_keys.is_disabled AS disabledFlag, + IIF(foreign_keys.is_not_trusted = 1e,0,1) AS trustedFlag + FROM sys.foreign_keys + ) + SELECT schemaName, tableName, constraintName, disabledFlag, FK.trustedFlag + FROM FK + WHERE schemaName LIKE @table_Schema + AND tableName LIKE @table_Name + + ORDER BY schemaName, tableName, constraintName + + OPEN @statements + + DECLARE @statement VARCHAR(1000), @schemaName sysname, @tableName sysname, @constraintName sysname, + @constraintType sysname,@disabledFlag BIT, @trustedFlag BIT; + + WHILE 1=1 + BEGIN + FETCH FROM @statements INTO @schemaName, @tableName, @constraintName, @disabledFlag, @trustedFlag + IF @@FETCH_STATUS <> 0 + BREAK + + BEGIN TRY + BEGIN TRANSACTION + + INSERT INTO Utility.foreign_key$batch_drop_toRestore (table_schema, table_name, constraint_name, + recreate_script, disabled_flag, trusted_flag) + SELECT @schemaName + , @tableName + , @constraintName + , utility.foreign_key$script(@schemaName, @constraintName,@force_replace_status) -- must be before the drop + , @disabledFlag + , @trustedFlag + + + SELECT @statement = 'ALTER TABLE ' + @schemaName + '.' + @tableName + ' DROP ' + @constraintName + + EXEC (@statement) + + COMMIT TRANSACTION + + END TRY + BEGIN CATCH + IF XACT_STATE() <> 0 + ROLLBACK + + DECLARE @msg NVARCHAR(2000) = + CONCAT('Error occurred: ' , CAST(ERROR_NUMBER() AS VARCHAR(10)) , ':' + , ERROR_MESSAGE() , CHAR(13) , CHAR(10) , + 'Statement executed: ' , @statement); + THROW 50000,@msg,1; + + END CATCH + + + END + +END +GO + + +IF OBJECT_ID('utility.foreign_key$batch_recreate', 'P') IS NULL +EXECUTE('CREATE PROCEDURE utility.foreign_key$batch_recreate as SELECT 1'); +GO + +ALTER PROCEDURE utility.foreign_key$batch_recreate +AS +-- ---------------------------------------------------------------- +-- Used to enable constraints +-- +-- 2017 Louis Davidson - drsql.org +-- ---------------------------------------------------------------- + +BEGIN + IF OBJECT_ID('Utility.foreign_key$batch_drop_toRestore') IS NULL + BEGIN + THROW 50000,'Table Utility.foreign_key$batch_drop_toRestore must exist, as this is where the objects to resore are stored',1; + RETURN -100 + END + + set nocount on + declare @statements cursor + SET @statements = CURSOR FOR + SELECT table_schema AS schemaName, table_name AS tableName, constraint_name AS constraintName, + disabled_flag AS disabledFlag, recreate_script AS statement, trusted_flag + FROM Utility.foreign_key$batch_drop_toRestore + + OPEN @statements + + DECLARE @schemaName sysname, @tableName sysname, @constraintName sysname, + @disabledFlag BIT, @trustedFlag BIT, @codelocation VARCHAR(200), @statement NVARCHAR(MAX); + + + WHILE 1=1 + BEGIN + FETCH FROM @statements INTO @schemaName, @tableName, @constraintName, @disabledFlag, @statement, @trustedFlag + IF @@FETCH_STATUS <> 0 + BREAK + + BEGIN TRY + BEGIN TRANSACTION + + EXEC (@statement) + --PRINT @statement + + DELETE FROM Utility.foreign_key$batch_drop_toRestore + WHERE table_schema = @schemaName + AND table_name = @tableName + AND constraint_name = @constraintName + + COMMIT TRANSACTION + + END TRY + BEGIN CATCH + IF XACT_STATE() = 0 + ROLLBACK; + DECLARE @msg NVARCHAR(2000) = + 'Error occurred: ' + CAST(ERROR_NUMBER() AS VARCHAR(10))+ ':' + ERROR_MESSAGE() + CHAR(13) + CHAR(10) + + 'Statement executed: ' + @statement; + THROW 50000, @msg, 1; + + END CATCH + + + END + + DROP TABLE Utility.foreign_key$batch_drop_toRestore; + + +END +GO diff --git a/Stored_Procedure/sp_generate_merge.sql b/Stored_Procedure/dbo.sp_generate_merge.sql similarity index 100% rename from Stored_Procedure/sp_generate_merge.sql rename to Stored_Procedure/dbo.sp_generate_merge.sql diff --git a/Stored_Procedure/sp_helpExpandView.sql b/Stored_Procedure/dbo.sp_helpExpandView.sql similarity index 97% rename from Stored_Procedure/sp_helpExpandView.sql rename to Stored_Procedure/dbo.sp_helpExpandView.sql index 6c7d1d2f..e71c287d 100644 --- a/Stored_Procedure/sp_helpExpandView.sql +++ b/Stored_Procedure/dbo.sp_helpExpandView.sql @@ -1,455 +1,455 @@ -IF OBJECT_ID('dbo.sp_helpExpandView', 'P') IS NULL -EXECUTE ('CREATE PROCEDURE dbo.sp_helpExpandView AS SELECT 1'); -GO - - -ALTER PROCEDURE dbo.sp_helpExpandView ( - @ViewName NVARCHAR(512), - @OutputFormat VARCHAR(15) = 'All', - @ShowObjectCount BIT = 0, - @Debug BIT = 0 -) -AS -/*=============================================================================== --- sp_helpExpandView --- --- Written By: Andy Yun --- Created On: 2015-02-27 --- --- Summary: --- This tool script was written to aid in de-constructing nested views and --- identifying all base objects underneath. --- --- Supports: --- Scalar & Table-Valued Functions --- Schemas --- Synonyms to other DBs --- --- --- Updates: --- Date Developer Remarks --- 2015-03-02 AYun V1: Initial Release --- 2015-03-03 AYun V2: Rewrote to properly handle external database --- references in child objects. --- 2015-03-03 AYun V2.1: Tweaked to remove duplicate results. --- Added sorting to output --- 2015-03-09 AYun V2.11: Adjusted horizontal output ORDER BY clause. --- 2015-03-30 AYun V2.2: New Output - List all objects referenced & count --- 2015-05-20 AYun V2.3: Corrected CURSOR & Database Name with space issue. --- Thanks Mickey Stuewe! ---------------------------------------------------------------------------------- --- License: --- This code is free to use for personal, educational, and internal corporate --- purposes provided that this header is preserved. --- (c) 2015 Andy Yun -===============================================================================*/ -BEGIN -BEGIN TRY - IF OBJECT_ID(@ViewName) IS NULL - BEGIN - RAISERROR('@ViewName undefined or does not exist.', 11, 1); - END - - DECLARE @BaseObject_DBName NVARCHAR(256), - @ChildObjectsFound SMALLINT = 1, - @HierarchyLevelToSearch TINYINT = 1, - @MinObjectHierarchyID INT = 0, - @TmpObjectHierarchyID INT = NULL, - @MaxObjectHierarchyID INT = 1, - @DBName NVARCHAR(256), - @sqlCMD NVARCHAR(4000); - - -- sys.dm_sql_referenced_entities() dislikes brackets. Must strip out. - SET @ViewName = REPLACE(REPLACE(@ViewName, ']', ''), '[', ''); - - -- if no schema specified, append dbo - IF CHARINDEX('.', @ViewName, 1) = 0 - SET @ViewName = 'dbo.' + @ViewName; - - IF @Debug = 1 SELECT '@ViewName', @ViewName - - ----- - -- Temp Tables - IF OBJECT_ID('tempdb.dbo.#tmpObjectHierarchy', 'U') IS NOT NULL - DROP TABLE #tmpObjectHierarchy; - - IF OBJECT_ID('tempdb.dbo.#tmpAllObjects', 'U') IS NOT NULL - DROP TABLE #tmpAllObjects; - - IF OBJECT_ID('tempdb.dbo.#tmpExternalObjectsToProcess', 'U') IS NOT NULL - DROP TABLE #tmpExternalObjectsToProcess; - - -- Create final output table containing full object hierarchy - CREATE TABLE #tmpObjectHierarchy ( - ObjectHierarchyID INT IDENTITY(1, 1) PRIMARY KEY CLUSTERED, - HierarchyLvl TINYINT, - - BaseObject_DBName NVARCHAR(512), - BaseObject_FullName NVARCHAR(512), - - Child_DBName NVARCHAR(512), - Child_SchemaName NVARCHAR(256), - Child_ObjectName NVARCHAR(256), - Child_FullName NVARCHAR(512), - Child_Type CHAR(2), - Child_ObjectID INT, - Synonym_BaseObjectName NVARCHAR(1035), - Synonym_BaseObjectType NVARCHAR(2), - ParentObjectHierarchyID INT - ); - - -- Populate #tmpObjectHierarchy with base level data - INSERT INTO #tmpObjectHierarchy ( - BaseObject_DBName, - BaseObject_FullName, - Child_FullName, - Child_SchemaName, - Child_ObjectName, - Child_Type, - Child_ObjectID, - HierarchyLvl, - Child_DBName, - ParentObjectHierarchyID - ) - SELECT DISTINCT - DB_NAME(), - @ViewName, - COALESCE(schemas.name, dm_sql_referenced_entities.referenced_schema_name) + '.' + dm_sql_referenced_entities.referenced_entity_name, - COALESCE(schemas.name, dm_sql_referenced_entities.referenced_schema_name), - dm_sql_referenced_entities.referenced_entity_name, - COALESCE(schemas.type, NULL), - dm_sql_referenced_entities.referenced_id, - 1 AS HierarchyLvl, - COALESCE(dm_sql_referenced_entities.referenced_database_name, DB_NAME()), - 0 AS ParentObjectHierarchyID - FROM sys.dm_sql_referenced_entities(@ViewName, 'OBJECT') - LEFT OUTER JOIN ( - SELECT objects.object_id, schemas.name, objects.type - FROM sys.objects - INNER JOIN sys.schemas - ON objects.schema_id = schemas.schema_id - ) schemas - ON dm_sql_referenced_entities.referenced_id = schemas.object_id - WHERE referenced_minor_id = 0; - - SELECT @MaxObjectHierarchyID = MAX(ObjectHierarchyID) - FROM #tmpObjectHierarchy; - - IF @Debug = 1 SELECT '#tmpObjectHierarchy', * FROM #tmpObjectHierarchy; - - --SELECT '1-#tmpObjectHierarchy', * FROM #tmpObjectHierarchy; - - ----- - -- Loop for each new Hierarchy Level #tmpObjectHierarchy - WHILE @MinObjectHierarchyID < @MaxObjectHierarchyID - BEGIN - IF @Debug = 1 SELECT @MinObjectHierarchyID AS '@MinObjectHierarchyID', @MaxObjectHierarchyID AS '@MaxObjectHierarchyID'; - - ----- - -- For each DB found in #tmpObjectHierarchy, loop through each recordset of each Database - DECLARE cursorEachDatabase CURSOR FAST_FORWARD - FOR - SELECT DISTINCT Child_DBName - FROM #tmpObjectHierarchy; - - OPEN cursorEachDatabase; - - FETCH NEXT - FROM cursorEachDatabase - INTO @DBName - - WHILE @@FETCH_STATUS = 0 - BEGIN - IF @Debug = 1 SELECT @DBName AS '@DBName'; - - SET @sqlCMD = N' - INSERT INTO #tmpObjectHierarchy ( - BaseObject_DBName, - BaseObject_FullName, - Child_FullName, - Child_SchemaName, - Child_ObjectName, - Child_ObjectID, - Child_Type, - HierarchyLvl, - Child_DBName, - ParentObjectHierarchyID - ) - SELECT DISTINCT - #tmpObjectHierarchy.Child_DBName, - #tmpObjectHierarchy.Child_FullName, - COALESCE(dm_sql_referenced_entities.referenced_schema_name, schemas.name) + ''.'' + dm_sql_referenced_entities.referenced_entity_name, - COALESCE(dm_sql_referenced_entities.referenced_schema_name, schemas.name), - dm_sql_referenced_entities.referenced_entity_name, - dm_sql_referenced_entities.referenced_id, - COALESCE(schemas.type, NULL), - #tmpObjectHierarchy.HierarchyLvl + 1 AS HierarchyLvl, - COALESCE(dm_sql_referenced_entities.referenced_database_name, #tmpObjectHierarchy.Child_DBName), - #tmpObjectHierarchy.ObjectHierarchyID - FROM #tmpObjectHierarchy - CROSS APPLY [@DatabaseName].sys.dm_sql_referenced_entities(#tmpObjectHierarchy.Child_FullName, ''OBJECT'') - LEFT OUTER JOIN ( - SELECT objects.object_id, schemas.name, objects.type - FROM [@DatabaseName].sys.objects - INNER JOIN [@DatabaseName].sys.schemas - ON objects.schema_id = schemas.schema_id - ) schemas - ON dm_sql_referenced_entities.referenced_id = schemas.object_id - WHERE dm_sql_referenced_entities.referenced_minor_id = 0 - AND #tmpObjectHierarchy.Child_DBName = ''@DatabaseName'' - AND #tmpObjectHierarchy.ObjectHierarchyID >= @MinObjectHierarchyID;' - - SET @sqlCMD = REPLACE(@sqlCMD, '@MinObjectHierarchyID', @MinObjectHierarchyID) - SET @sqlCMD = REPLACE(@sqlCMD, '@HierarchyLevelToSearch', @HierarchyLevelToSearch) - SET @sqlCMD = REPLACE(@sqlCMD, '@DatabaseName', @DBName) - - IF @Debug = 1 PRINT @sqlCMD; - - EXECUTE sp_executesql @sqlCMD - - -- Must identify if any of these objects are synonyms. - SET @sqlCMD = N' - -- Update synonym objects with fully qualified base_object_name values - UPDATE #tmpObjectHierarchy - SET Child_Type = synonyms.type, - Child_DBName = PARSENAME(synonyms.base_object_name, 3), - Synonym_BaseObjectName = synonyms.base_object_name - FROM [@DatabaseName].sys.synonyms - INNER JOIN [@DatabaseName].sys.schemas - ON synonyms.schema_id = schemas.schema_id - WHERE #tmpObjectHierarchy.Child_DBName = ''@DatabaseName'' - AND #tmpObjectHierarchy.ObjectHierarchyID >= @MinObjectHierarchyID - AND synonyms.object_id = #tmpObjectHierarchy.Child_ObjectID;'; - - SET @sqlCMD = REPLACE(@sqlCMD, '@MinObjectHierarchyID', @MinObjectHierarchyID) - SET @sqlCMD = REPLACE(@sqlCMD, '@DatabaseName', @DBName) - - IF @Debug = 1 PRINT @sqlCMD; - - EXECUTE sp_executesql @sqlCMD - - FETCH NEXT - FROM cursorEachDatabase - INTO @DBName - END - - CLOSE cursorEachDatabase; - DEALLOCATE cursorEachDatabase; - - SELECT - @TmpObjectHierarchyID = @MinObjectHierarchyID, - @MinObjectHierarchyID = @MaxObjectHierarchyID + 1, - @MaxObjectHierarchyID = MAX(ObjectHierarchyID) - FROM #tmpObjectHierarchy; - - -- Serialize - INSERT INTO #tmpObjectHierarchy ( - BaseObject_DBName, - BaseObject_FullName, - Child_FullName, - Child_SchemaName, - Child_ObjectName, - Child_ObjectID, - HierarchyLvl, - Child_DBName, - ParentObjectHierarchyID - ) - SELECT DISTINCT - #tmpObjectHierarchy.BaseObject_DBName AS BaseObject_DBName, - #tmpObjectHierarchy.Child_FullName AS BaseObject_FullName, - PARSENAME(Synonym_BaseObjectName, 2) + '.' + PARSENAME(Synonym_BaseObjectName, 1) AS Child_FullName, - PARSENAME(Synonym_BaseObjectName, 2) AS Child_SchemaName, - PARSENAME(Synonym_BaseObjectName, 1) AS Child_ObjectName, - OBJECT_ID(#tmpObjectHierarchy.Synonym_BaseObjectName) AS Child_ObjectID, - #tmpObjectHierarchy.HierarchyLvl + 1 AS HierarchyLvl, - #tmpObjectHierarchy.Child_DBName AS Child_DBName, - #tmpObjectHierarchy.ObjectHierarchyID AS ParentObjectHierarchyID - FROM #tmpObjectHierarchy - WHERE #tmpObjectHierarchy.Child_Type = 'SN' - AND #tmpObjectHierarchy.ObjectHierarchyID > @TmpObjectHierarchyID; - - IF @Debug = 1 SELECT '2-#tmpObjectHierarchy', * FROM #tmpObjectHierarchy; - END - - IF @Debug = 1 SELECT '3-#tmpObjectHierarchy', * FROM #tmpObjectHierarchy; - - -- All children of synonyms will be missing a Type. Need to go back through all DBs and materialize these. - IF EXISTS(SELECT 1 FROM #tmpObjectHierarchy WHERE Child_Type IS NULL) - BEGIN - - ----- - -- For each DB found in #tmpObjectHierarchy, loop through each recordset of each Database - DECLARE cursorEachDatabase_2 CURSOR FAST_FORWARD - FOR - SELECT DISTINCT Child_DBName - FROM #tmpObjectHierarchy - WHERE Child_Type IS NULL; - - OPEN cursorEachDatabase_2; - - FETCH NEXT - FROM cursorEachDatabase_2 - INTO @DBName - - WHILE @@FETCH_STATUS = 0 - BEGIN - IF @Debug = 1 SELECT @DBName AS '@DBName'; - - SET @sqlCMD = N' - UPDATE #tmpObjectHierarchy - SET Child_Type = objects.type - FROM [@DatabaseName].sys.objects - WHERE #tmpObjectHierarchy.Child_DBName = ''@DatabaseName'' - AND #tmpObjectHierarchy.Child_Type IS NULL - AND #tmpObjectHierarchy.Child_ObjectID = objects.object_id;'; - - SET @sqlCMD = REPLACE(@sqlCMD, '@DatabaseName', @DBName) - - IF @Debug = 1 PRINT @sqlCMD; - - EXECUTE sp_executesql @sqlCMD - - FETCH NEXT - FROM cursorEachDatabase_2 - INTO @DBName - END - - CLOSE cursorEachDatabase_2; - DEALLOCATE cursorEachDatabase_2; - - END - - ----- - -- Unflattened Output - IF ( - @OutputFormat = 'Vertical' - OR @OutputFormat = 'All' - ) - BEGIN - SELECT DISTINCT - HierarchyLvl, - BaseObject_FullName, - Child_DBName, - Child_FullName, - Child_Type, - ObjectHierarchyID, - ParentObjectHierarchyID - FROM #tmpObjectHierarchy - ORDER BY HierarchyLvl, - BaseObject_FullName, - Child_DBName, - Child_FullName - END - - ----- - -- Dynamically create flattened output - IF ( - @OutputFormat = 'Horizontal' - OR @OutputFormat = 'All' - ) - BEGIN - DECLARE @MaxHierarchyID INT, - @HierarchyID INT = 2; - - SELECT @MaxHierarchyID = MAX(HierarchyLvl) - FROM #tmpObjectHierarchy; - - DECLARE @sqlSelect NVARCHAR(4000) = N' - SELECT DISTINCT - Lvl1.BaseObject_FullName - , Lvl1.HierarchyLvl AS Lvl_1 - , Lvl1.Child_FullName AS Obj_1 - , Lvl1.Child_Type AS Typ_1', - @sqlFrom NVARCHAR(4000) = N' - FROM #tmpObjectHierarchy Lvl1'; - - WHILE @HierarchyID <= @MaxHierarchyID - BEGIN - SET @sqlSelect = @sqlSelect + N' - , COALESCE(Lvl' + CAST(@HierarchyID AS NVARCHAR(4000)) + '.HierarchyLvl, ''' + CAST(@HierarchyID AS NVARCHAR(4000)) + ''') AS Lvl_' + CAST(@HierarchyID AS NVARCHAR(4000)) + ' - , COALESCE(Lvl' + CAST(@HierarchyID AS NVARCHAR(4000)) + '.Child_FullName, SPACE(0)) AS Obj_' + CAST(@HierarchyID AS NVARCHAR(4000)) + ' - , COALESCE(Lvl' + CAST(@HierarchyID AS NVARCHAR(4000)) + '.Child_Type, SPACE(0)) AS Typ_' + CAST(@HierarchyID AS NVARCHAR(4000)); - SET @sqlFrom = @sqlFrom + N' - LEFT OUTER JOIN #tmpObjectHierarchy Lvl' + CAST(@HierarchyID AS NVARCHAR(4000)) + ' - ON Lvl' + CAST((@HierarchyID - 1) AS NVARCHAR(4000)) + '.ObjectHierarchyID = Lvl' + CAST(@HierarchyID AS NVARCHAR(4000)) + '.ParentObjectHierarchyID - AND Lvl' + CAST(@HierarchyID AS NVARCHAR(4000)) + '.HierarchyLvl = ' + CAST(@HierarchyID AS NVARCHAR(4000)); - SET @HierarchyID = @HierarchyID + 1; - END - - SET @sqlCMD = @sqlSelect + @sqlFrom + N' - WHERE Lvl1.HierarchyLvl = 1 - ORDER BY Lvl1.BaseObject_FullName, Lvl1.HierarchyLvl, Lvl1.Child_FullName;'; - - EXEC sp_executesql @sqlCMD; - END - - ----- - -- If enabled, show list of all objects referenced & # of times referenced. - IF @ShowObjectCount = 1 - BEGIN - SELECT - CASE - WHEN #tmpObjectHierarchy.Child_Type = 'U' - THEN 'User Table' - WHEN #tmpObjectHierarchy.Child_Type = 'S' - THEN 'System Table' - WHEN #tmpObjectHierarchy.Child_Type = 'V' - THEN 'View' - WHEN #tmpObjectHierarchy.Child_Type = 'FN' - THEN 'Scalar Function' - WHEN #tmpObjectHierarchy.Child_Type = 'IF' - THEN 'Inline Function' - WHEN #tmpObjectHierarchy.Child_Type = 'TF' - THEN 'Table Valued Function' - WHEN #tmpObjectHierarchy.Child_Type = 'P' - THEN 'Stored Procedure' - WHEN #tmpObjectHierarchy.Child_Type = 'SN' - THEN 'Synonym' - ELSE #tmpObjectHierarchy.Child_Type - END AS ObjectType, - #tmpObjectHierarchy.Child_FullName AS Object_FullName, - COUNT(1) AS ReferencedCount - FROM #tmpObjectHierarchy - GROUP BY #tmpObjectHierarchy.Child_Type, - #tmpObjectHierarchy.Child_FullName - ORDER BY ObjectType, - #tmpObjectHierarchy.Child_FullName - END -END TRY -BEGIN CATCH - IF (SELECT CURSOR_STATUS('global','cursorEachDatabase')) >= -1 - BEGIN - DEALLOCATE cursorEachDatabase - END - - IF (SELECT CURSOR_STATUS('global','cursorEachDatabase_2')) >= -1 - BEGIN - DEALLOCATE cursorEachDatabase_2 - END - - DECLARE - @ErrorNumber INT, - @ErrorSeverity INT, - @ErrorState INT, - @ErrorProcedure NVARCHAR(128), - @ErrorLine INT, - @ErrorMessage NVARCHAR(4000); - - SELECT - @ErrorNumber = ERROR_NUMBER(), - @ErrorSeverity = ERROR_SEVERITY(), - @ErrorState = ERROR_STATE(), - @ErrorProcedure = ERROR_PROCEDURE(), - @ErrorLine = ERROR_LINE(), - @ErrorMessage = ERROR_MESSAGE(); - - SELECT - @ErrorNumber AS ErrorNumber, - @ErrorSeverity AS ErrorSeverity, - @ErrorState AS ErrorState, - @ErrorProcedure AS ErrorProcedure, - @ErrorLine AS ErrorLine, - @ErrorMessage AS ErrorMessage; -END CATCH -END -GO +IF OBJECT_ID('dbo.sp_helpExpandView', 'P') IS NULL +EXECUTE ('CREATE PROCEDURE dbo.sp_helpExpandView AS SELECT 1'); +GO + + +ALTER PROCEDURE dbo.sp_helpExpandView ( + @ViewName NVARCHAR(512), + @OutputFormat VARCHAR(15) = 'All', + @ShowObjectCount BIT = 0, + @Debug BIT = 0 +) +AS +/*=============================================================================== +-- sp_helpExpandView +-- +-- Written By: Andy Yun +-- Created On: 2015-02-27 +-- +-- Summary: +-- This tool script was written to aid in de-constructing nested views and +-- identifying all base objects underneath. +-- +-- Supports: +-- Scalar & Table-Valued Functions +-- Schemas +-- Synonyms to other DBs +-- +-- +-- Updates: +-- Date Developer Remarks +-- 2015-03-02 AYun V1: Initial Release +-- 2015-03-03 AYun V2: Rewrote to properly handle external database +-- references in child objects. +-- 2015-03-03 AYun V2.1: Tweaked to remove duplicate results. +-- Added sorting to output +-- 2015-03-09 AYun V2.11: Adjusted horizontal output ORDER BY clause. +-- 2015-03-30 AYun V2.2: New Output - List all objects referenced & count +-- 2015-05-20 AYun V2.3: Corrected CURSOR & Database Name with space issue. +-- Thanks Mickey Stuewe! +--------------------------------------------------------------------------------- +-- License: +-- This code is free to use for personal, educational, and internal corporate +-- purposes provided that this header is preserved. +-- (c) 2015 Andy Yun +===============================================================================*/ +BEGIN +BEGIN TRY + IF OBJECT_ID(@ViewName) IS NULL + BEGIN + RAISERROR('@ViewName undefined or does not exist.', 11, 1); + END + + DECLARE @BaseObject_DBName NVARCHAR(256), + @ChildObjectsFound SMALLINT = 1, + @HierarchyLevelToSearch TINYINT = 1, + @MinObjectHierarchyID INT = 0, + @TmpObjectHierarchyID INT = NULL, + @MaxObjectHierarchyID INT = 1, + @DBName NVARCHAR(256), + @sqlCMD NVARCHAR(4000); + + -- sys.dm_sql_referenced_entities() dislikes brackets. Must strip out. + SET @ViewName = REPLACE(REPLACE(@ViewName, ']', ''), '[', ''); + + -- if no schema specified, append dbo + IF CHARINDEX('.', @ViewName, 1) = 0 + SET @ViewName = 'dbo.' + @ViewName; + + IF @Debug = 1 SELECT '@ViewName', @ViewName + + ----- + -- Temp Tables + IF OBJECT_ID('tempdb.dbo.#tmpObjectHierarchy', 'U') IS NOT NULL + DROP TABLE #tmpObjectHierarchy; + + IF OBJECT_ID('tempdb.dbo.#tmpAllObjects', 'U') IS NOT NULL + DROP TABLE #tmpAllObjects; + + IF OBJECT_ID('tempdb.dbo.#tmpExternalObjectsToProcess', 'U') IS NOT NULL + DROP TABLE #tmpExternalObjectsToProcess; + + -- Create final output table containing full object hierarchy + CREATE TABLE #tmpObjectHierarchy ( + ObjectHierarchyID INT IDENTITY(1, 1) PRIMARY KEY CLUSTERED, + HierarchyLvl TINYINT, + + BaseObject_DBName NVARCHAR(512), + BaseObject_FullName NVARCHAR(512), + + Child_DBName NVARCHAR(512), + Child_SchemaName NVARCHAR(256), + Child_ObjectName NVARCHAR(256), + Child_FullName NVARCHAR(512), + Child_Type CHAR(2), + Child_ObjectID INT, + Synonym_BaseObjectName NVARCHAR(1035), + Synonym_BaseObjectType NVARCHAR(2), + ParentObjectHierarchyID INT + ); + + -- Populate #tmpObjectHierarchy with base level data + INSERT INTO #tmpObjectHierarchy ( + BaseObject_DBName, + BaseObject_FullName, + Child_FullName, + Child_SchemaName, + Child_ObjectName, + Child_Type, + Child_ObjectID, + HierarchyLvl, + Child_DBName, + ParentObjectHierarchyID + ) + SELECT DISTINCT + DB_NAME(), + @ViewName, + COALESCE(schemas.name, dm_sql_referenced_entities.referenced_schema_name) + '.' + dm_sql_referenced_entities.referenced_entity_name, + COALESCE(schemas.name, dm_sql_referenced_entities.referenced_schema_name), + dm_sql_referenced_entities.referenced_entity_name, + COALESCE(schemas.type, NULL), + dm_sql_referenced_entities.referenced_id, + 1 AS HierarchyLvl, + COALESCE(dm_sql_referenced_entities.referenced_database_name, DB_NAME()), + 0 AS ParentObjectHierarchyID + FROM sys.dm_sql_referenced_entities(@ViewName, 'OBJECT') + LEFT OUTER JOIN ( + SELECT objects.object_id, schemas.name, objects.type + FROM sys.objects + INNER JOIN sys.schemas + ON objects.schema_id = schemas.schema_id + ) schemas + ON dm_sql_referenced_entities.referenced_id = schemas.object_id + WHERE referenced_minor_id = 0; + + SELECT @MaxObjectHierarchyID = MAX(ObjectHierarchyID) + FROM #tmpObjectHierarchy; + + IF @Debug = 1 SELECT '#tmpObjectHierarchy', * FROM #tmpObjectHierarchy; + + --SELECT '1-#tmpObjectHierarchy', * FROM #tmpObjectHierarchy; + + ----- + -- Loop for each new Hierarchy Level #tmpObjectHierarchy + WHILE @MinObjectHierarchyID < @MaxObjectHierarchyID + BEGIN + IF @Debug = 1 SELECT @MinObjectHierarchyID AS '@MinObjectHierarchyID', @MaxObjectHierarchyID AS '@MaxObjectHierarchyID'; + + ----- + -- For each DB found in #tmpObjectHierarchy, loop through each recordset of each Database + DECLARE cursorEachDatabase CURSOR FAST_FORWARD + FOR + SELECT DISTINCT Child_DBName + FROM #tmpObjectHierarchy; + + OPEN cursorEachDatabase; + + FETCH NEXT + FROM cursorEachDatabase + INTO @DBName + + WHILE @@FETCH_STATUS = 0 + BEGIN + IF @Debug = 1 SELECT @DBName AS '@DBName'; + + SET @sqlCMD = N' + INSERT INTO #tmpObjectHierarchy ( + BaseObject_DBName, + BaseObject_FullName, + Child_FullName, + Child_SchemaName, + Child_ObjectName, + Child_ObjectID, + Child_Type, + HierarchyLvl, + Child_DBName, + ParentObjectHierarchyID + ) + SELECT DISTINCT + #tmpObjectHierarchy.Child_DBName, + #tmpObjectHierarchy.Child_FullName, + COALESCE(dm_sql_referenced_entities.referenced_schema_name, schemas.name) + ''.'' + dm_sql_referenced_entities.referenced_entity_name, + COALESCE(dm_sql_referenced_entities.referenced_schema_name, schemas.name), + dm_sql_referenced_entities.referenced_entity_name, + dm_sql_referenced_entities.referenced_id, + COALESCE(schemas.type, NULL), + #tmpObjectHierarchy.HierarchyLvl + 1 AS HierarchyLvl, + COALESCE(dm_sql_referenced_entities.referenced_database_name, #tmpObjectHierarchy.Child_DBName), + #tmpObjectHierarchy.ObjectHierarchyID + FROM #tmpObjectHierarchy + CROSS APPLY [@DatabaseName].sys.dm_sql_referenced_entities(#tmpObjectHierarchy.Child_FullName, ''OBJECT'') + LEFT OUTER JOIN ( + SELECT objects.object_id, schemas.name, objects.type + FROM [@DatabaseName].sys.objects + INNER JOIN [@DatabaseName].sys.schemas + ON objects.schema_id = schemas.schema_id + ) schemas + ON dm_sql_referenced_entities.referenced_id = schemas.object_id + WHERE dm_sql_referenced_entities.referenced_minor_id = 0 + AND #tmpObjectHierarchy.Child_DBName = ''@DatabaseName'' + AND #tmpObjectHierarchy.ObjectHierarchyID >= @MinObjectHierarchyID;' + + SET @sqlCMD = REPLACE(@sqlCMD, '@MinObjectHierarchyID', @MinObjectHierarchyID) + SET @sqlCMD = REPLACE(@sqlCMD, '@HierarchyLevelToSearch', @HierarchyLevelToSearch) + SET @sqlCMD = REPLACE(@sqlCMD, '@DatabaseName', @DBName) + + IF @Debug = 1 PRINT @sqlCMD; + + EXECUTE sp_executesql @sqlCMD + + -- Must identify if any of these objects are synonyms. + SET @sqlCMD = N' + -- Update synonym objects with fully qualified base_object_name values + UPDATE #tmpObjectHierarchy + SET Child_Type = synonyms.type, + Child_DBName = PARSENAME(synonyms.base_object_name, 3), + Synonym_BaseObjectName = synonyms.base_object_name + FROM [@DatabaseName].sys.synonyms + INNER JOIN [@DatabaseName].sys.schemas + ON synonyms.schema_id = schemas.schema_id + WHERE #tmpObjectHierarchy.Child_DBName = ''@DatabaseName'' + AND #tmpObjectHierarchy.ObjectHierarchyID >= @MinObjectHierarchyID + AND synonyms.object_id = #tmpObjectHierarchy.Child_ObjectID;'; + + SET @sqlCMD = REPLACE(@sqlCMD, '@MinObjectHierarchyID', @MinObjectHierarchyID) + SET @sqlCMD = REPLACE(@sqlCMD, '@DatabaseName', @DBName) + + IF @Debug = 1 PRINT @sqlCMD; + + EXECUTE sp_executesql @sqlCMD + + FETCH NEXT + FROM cursorEachDatabase + INTO @DBName + END + + CLOSE cursorEachDatabase; + DEALLOCATE cursorEachDatabase; + + SELECT + @TmpObjectHierarchyID = @MinObjectHierarchyID, + @MinObjectHierarchyID = @MaxObjectHierarchyID + 1, + @MaxObjectHierarchyID = MAX(ObjectHierarchyID) + FROM #tmpObjectHierarchy; + + -- Serialize + INSERT INTO #tmpObjectHierarchy ( + BaseObject_DBName, + BaseObject_FullName, + Child_FullName, + Child_SchemaName, + Child_ObjectName, + Child_ObjectID, + HierarchyLvl, + Child_DBName, + ParentObjectHierarchyID + ) + SELECT DISTINCT + #tmpObjectHierarchy.BaseObject_DBName AS BaseObject_DBName, + #tmpObjectHierarchy.Child_FullName AS BaseObject_FullName, + PARSENAME(Synonym_BaseObjectName, 2) + '.' + PARSENAME(Synonym_BaseObjectName, 1) AS Child_FullName, + PARSENAME(Synonym_BaseObjectName, 2) AS Child_SchemaName, + PARSENAME(Synonym_BaseObjectName, 1) AS Child_ObjectName, + OBJECT_ID(#tmpObjectHierarchy.Synonym_BaseObjectName) AS Child_ObjectID, + #tmpObjectHierarchy.HierarchyLvl + 1 AS HierarchyLvl, + #tmpObjectHierarchy.Child_DBName AS Child_DBName, + #tmpObjectHierarchy.ObjectHierarchyID AS ParentObjectHierarchyID + FROM #tmpObjectHierarchy + WHERE #tmpObjectHierarchy.Child_Type = 'SN' + AND #tmpObjectHierarchy.ObjectHierarchyID > @TmpObjectHierarchyID; + + IF @Debug = 1 SELECT '2-#tmpObjectHierarchy', * FROM #tmpObjectHierarchy; + END + + IF @Debug = 1 SELECT '3-#tmpObjectHierarchy', * FROM #tmpObjectHierarchy; + + -- All children of synonyms will be missing a Type. Need to go back through all DBs and materialize these. + IF EXISTS(SELECT 1 FROM #tmpObjectHierarchy WHERE Child_Type IS NULL) + BEGIN + + ----- + -- For each DB found in #tmpObjectHierarchy, loop through each recordset of each Database + DECLARE cursorEachDatabase_2 CURSOR FAST_FORWARD + FOR + SELECT DISTINCT Child_DBName + FROM #tmpObjectHierarchy + WHERE Child_Type IS NULL; + + OPEN cursorEachDatabase_2; + + FETCH NEXT + FROM cursorEachDatabase_2 + INTO @DBName + + WHILE @@FETCH_STATUS = 0 + BEGIN + IF @Debug = 1 SELECT @DBName AS '@DBName'; + + SET @sqlCMD = N' + UPDATE #tmpObjectHierarchy + SET Child_Type = objects.type + FROM [@DatabaseName].sys.objects + WHERE #tmpObjectHierarchy.Child_DBName = ''@DatabaseName'' + AND #tmpObjectHierarchy.Child_Type IS NULL + AND #tmpObjectHierarchy.Child_ObjectID = objects.object_id;'; + + SET @sqlCMD = REPLACE(@sqlCMD, '@DatabaseName', @DBName) + + IF @Debug = 1 PRINT @sqlCMD; + + EXECUTE sp_executesql @sqlCMD + + FETCH NEXT + FROM cursorEachDatabase_2 + INTO @DBName + END + + CLOSE cursorEachDatabase_2; + DEALLOCATE cursorEachDatabase_2; + + END + + ----- + -- Unflattened Output + IF ( + @OutputFormat = 'Vertical' + OR @OutputFormat = 'All' + ) + BEGIN + SELECT DISTINCT + HierarchyLvl, + BaseObject_FullName, + Child_DBName, + Child_FullName, + Child_Type, + ObjectHierarchyID, + ParentObjectHierarchyID + FROM #tmpObjectHierarchy + ORDER BY HierarchyLvl, + BaseObject_FullName, + Child_DBName, + Child_FullName + END + + ----- + -- Dynamically create flattened output + IF ( + @OutputFormat = 'Horizontal' + OR @OutputFormat = 'All' + ) + BEGIN + DECLARE @MaxHierarchyID INT, + @HierarchyID INT = 2; + + SELECT @MaxHierarchyID = MAX(HierarchyLvl) + FROM #tmpObjectHierarchy; + + DECLARE @sqlSelect NVARCHAR(4000) = N' + SELECT DISTINCT + Lvl1.BaseObject_FullName + , Lvl1.HierarchyLvl AS Lvl_1 + , Lvl1.Child_FullName AS Obj_1 + , Lvl1.Child_Type AS Typ_1', + @sqlFrom NVARCHAR(4000) = N' + FROM #tmpObjectHierarchy Lvl1'; + + WHILE @HierarchyID <= @MaxHierarchyID + BEGIN + SET @sqlSelect = @sqlSelect + N' + , COALESCE(Lvl' + CAST(@HierarchyID AS NVARCHAR(4000)) + '.HierarchyLvl, ''' + CAST(@HierarchyID AS NVARCHAR(4000)) + ''') AS Lvl_' + CAST(@HierarchyID AS NVARCHAR(4000)) + ' + , COALESCE(Lvl' + CAST(@HierarchyID AS NVARCHAR(4000)) + '.Child_FullName, SPACE(0)) AS Obj_' + CAST(@HierarchyID AS NVARCHAR(4000)) + ' + , COALESCE(Lvl' + CAST(@HierarchyID AS NVARCHAR(4000)) + '.Child_Type, SPACE(0)) AS Typ_' + CAST(@HierarchyID AS NVARCHAR(4000)); + SET @sqlFrom = @sqlFrom + N' + LEFT OUTER JOIN #tmpObjectHierarchy Lvl' + CAST(@HierarchyID AS NVARCHAR(4000)) + ' + ON Lvl' + CAST((@HierarchyID - 1) AS NVARCHAR(4000)) + '.ObjectHierarchyID = Lvl' + CAST(@HierarchyID AS NVARCHAR(4000)) + '.ParentObjectHierarchyID + AND Lvl' + CAST(@HierarchyID AS NVARCHAR(4000)) + '.HierarchyLvl = ' + CAST(@HierarchyID AS NVARCHAR(4000)); + SET @HierarchyID = @HierarchyID + 1; + END + + SET @sqlCMD = @sqlSelect + @sqlFrom + N' + WHERE Lvl1.HierarchyLvl = 1 + ORDER BY Lvl1.BaseObject_FullName, Lvl1.HierarchyLvl, Lvl1.Child_FullName;'; + + EXEC sp_executesql @sqlCMD; + END + + ----- + -- If enabled, show list of all objects referenced & # of times referenced. + IF @ShowObjectCount = 1 + BEGIN + SELECT + CASE + WHEN #tmpObjectHierarchy.Child_Type = 'U' + THEN 'User Table' + WHEN #tmpObjectHierarchy.Child_Type = 'S' + THEN 'System Table' + WHEN #tmpObjectHierarchy.Child_Type = 'V' + THEN 'View' + WHEN #tmpObjectHierarchy.Child_Type = 'FN' + THEN 'Scalar Function' + WHEN #tmpObjectHierarchy.Child_Type = 'IF' + THEN 'Inline Function' + WHEN #tmpObjectHierarchy.Child_Type = 'TF' + THEN 'Table Valued Function' + WHEN #tmpObjectHierarchy.Child_Type = 'P' + THEN 'Stored Procedure' + WHEN #tmpObjectHierarchy.Child_Type = 'SN' + THEN 'Synonym' + ELSE #tmpObjectHierarchy.Child_Type + END AS ObjectType, + #tmpObjectHierarchy.Child_FullName AS Object_FullName, + COUNT(1) AS ReferencedCount + FROM #tmpObjectHierarchy + GROUP BY #tmpObjectHierarchy.Child_Type, + #tmpObjectHierarchy.Child_FullName + ORDER BY ObjectType, + #tmpObjectHierarchy.Child_FullName + END +END TRY +BEGIN CATCH + IF (SELECT CURSOR_STATUS('global','cursorEachDatabase')) >= -1 + BEGIN + DEALLOCATE cursorEachDatabase + END + + IF (SELECT CURSOR_STATUS('global','cursorEachDatabase_2')) >= -1 + BEGIN + DEALLOCATE cursorEachDatabase_2 + END + + DECLARE + @ErrorNumber INT, + @ErrorSeverity INT, + @ErrorState INT, + @ErrorProcedure NVARCHAR(128), + @ErrorLine INT, + @ErrorMessage NVARCHAR(4000); + + SELECT + @ErrorNumber = ERROR_NUMBER(), + @ErrorSeverity = ERROR_SEVERITY(), + @ErrorState = ERROR_STATE(), + @ErrorProcedure = ERROR_PROCEDURE(), + @ErrorLine = ERROR_LINE(), + @ErrorMessage = ERROR_MESSAGE(); + + SELECT + @ErrorNumber AS ErrorNumber, + @ErrorSeverity AS ErrorSeverity, + @ErrorState AS ErrorState, + @ErrorProcedure AS ErrorProcedure, + @ErrorLine AS ErrorLine, + @ErrorMessage AS ErrorMessage; +END CATCH +END +GO diff --git a/Stored_Procedure/dbo.sp_help_permissions.sql b/Stored_Procedure/dbo.sp_help_permissions.sql new file mode 100644 index 00000000..27a933e0 --- /dev/null +++ b/Stored_Procedure/dbo.sp_help_permissions.sql @@ -0,0 +1,968 @@ +USE master; +GO +IF (OBJECT_ID('dbo.sp_help_permissions') IS NULL) EXEC('CREATE PROCEDURE dbo.sp_help_permissions AS --'); +GO +/* + +This script lists all permissions by principal, securable and permission. +Optionally, you can filter these objects using the @principal, @securable, +and/or @permission parameters (using T-SQL wildcards). + +The output can be tabular with permissions grouped as comma-separated lists +(using @permission_list=1) or one row for each permission (@permission_list=0). +You can also return the result as an xml OUTPUT variable, using @output_xml=1 +and collecting the output from the @xml parameter. + +Copyright Daniel Hutmacher under Creative Commons 4.0 license with attribution. +http://creativecommons.org/licenses/by/4.0/ + +Source: http://sqlsunday.com/downloads/ + +VERSION: 2017-09-26 + +DISCLAIMER: This script does not make any modifications to the database + apart from installing and registering a stored procedure + in the master database, but may still not be suitable to run in + a production environment. I cannot assume any responsibility + with regards to the accuracy of the output information, any + performance impact on your server, or any other consequence. + It's free software, so you assume responsibility. + If your juristiction does not allow for this kind of + waiver/disclaimer, or if you do not accept these terms, you are + NOT allowed to store, distribute or use this code in any manner. + +*/ +ALTER PROCEDURE dbo.sp_help_permissions + @principal sysname=NULL, + @securable sysname=NULL, + @permission sysname=NULL, + @permission_list bit=0, + @output_xml bit=0, + @hide_system_principals bit=1, + @xml xml=NULL OUTPUT +WITH EXECUTE AS CALLER +AS + +SET NOCOUNT ON; +SET STATISTICS XML, TIME, IO OFF; +SET DEADLOCK_PRIORITY LOW; + +IF (@output_xml=1) SET @permission_list=0; + + + +------------------------------------------------------------------------------- +--- Variables and work table declarations +------------------------------------------------------------------------------- + + + +DECLARE @name sysname; + +DECLARE @xp_logininfo TABLE ( + account_name sysname NOT NULL, + [type] varchar(100) NULL, + privilege varchar(100) NULL, + mapped_login_name sysname NOT NULL, + permission_path sysname NOT NULL, + _id int IDENTITY(1, 1) NOT NULL, + PRIMARY KEY CLUSTERED (permission_path, mapped_login_name) +); + +DECLARE @srv_principals TABLE ( + principal_id int NOT NULL, + [type_desc] nvarchar(60) NOT NULL, + [sid] varbinary(85) NULL, + [name] sysname NOT NULL, + PRIMARY KEY (principal_id) +); + +DECLARE @srv_members TABLE ( + role_principal_id int NOT NULL, + member_principal_id int NOT NULL, + PRIMARY KEY CLUSTERED (role_principal_id, member_principal_id) +); + +DECLARE @db_principals TABLE ( + principal_id int NOT NULL, + [type_desc] nvarchar(60) NOT NULL, + [sid] varbinary(85) NOT NULL, + [name] sysname NOT NULL, + member_of int NULL, + PRIMARY KEY (principal_id) +); + +DECLARE @db_members TABLE ( + role_principal_id int NOT NULL, + member_principal_id int NOT NULL, + PRIMARY KEY CLUSTERED (role_principal_id, member_principal_id) +); + +DECLARE @principals TABLE ( + declared_principal_id int NOT NULL, + declared_type_desc nvarchar(60) NOT NULL, + declared_sid varbinary(85) NOT NULL, + declared_name sysname NOT NULL, + declared_is_server_lvl bit NOT NULL, + effective_principal_id int NOT NULL, + effective_type_desc nvarchar(60) NOT NULL, + effective_sid varbinary(85) NOT NULL, + effective_name sysname NOT NULL, + effective_is_server_lvl bit NOT NULL, + [level] tinyint NOT NULL, + [path] nvarchar(max) NOT NULL, + _id int IDENTITY(1, 1) NOT NULL, + PRIMARY KEY CLUSTERED (declared_type_desc, declared_principal_id, effective_type_desc, effective_principal_id, _id) +); + +DECLARE @s_public int=(SELECT principal_id FROM sys.server_principals WHERE [name]=N'public'); +DECLARE @d_public int=(SELECT principal_id FROM sys.database_principals WHERE [name]=N'public'); +DECLARE @sysadmin int=(SELECT principal_id FROM sys.server_principals WHERE [name]=N'sysadmin'); + +DECLARE @builtin_permissions TABLE ( + class nvarchar(60) NOT NULL, + permission nvarchar(60) NOT NULL, + declared_class nvarchar(60) NULL, + declared_permission nvarchar(60) NULL, + UNIQUE CLUSTERED (declared_class, declared_permission, class, permission), + UNIQUE (class, permission, declared_class, declared_permission) +); + +DECLARE @permissions_temp TABLE ( + declared_class nvarchar(60) COLLATE database_default NOT NULL, + declared_permission nvarchar(60) COLLATE database_default NOT NULL, + class nvarchar(60) COLLATE database_default NOT NULL, + permission nvarchar(60) COLLATE database_default NOT NULL, + [path] nvarchar(max) COLLATE database_default NOT NULL, + [level] tinyint NOT NULL, + _id int IDENTITY(1, 1) NOT NULL, + PRIMARY KEY CLUSTERED (class, declared_class, declared_permission, [level], _id), + UNIQUE (permission, _id) +); + +DECLARE @permissions TABLE ( + declared_class nvarchar(60) COLLATE database_default NOT NULL, + declared_permission nvarchar(60) COLLATE database_default NOT NULL, + class nvarchar(60) COLLATE database_default NOT NULL, + permission nvarchar(4000) COLLATE database_default NOT NULL, + [path] nvarchar(max) COLLATE database_default NOT NULL, + [level] tinyint NOT NULL, + _id int IDENTITY(1, 1) NOT NULL, + PRIMARY KEY CLUSTERED (class, declared_class, declared_permission, [level], _id) +); + +DECLARE @securables_temp TABLE ( + parent_class int NULL, + parent_major_id int NULL, + class int NOT NULL, + major_id int NOT NULL, + principal_id int NULL, + class_desc nvarchar(22) NOT NULL, + qualified_name nvarchar(max) NULL, + is_server_lvl int NOT NULL, + PRIMARY KEY CLUSTERED (class, major_id) +); + +DECLARE @securables TABLE ( + parent_class int NOT NULL, + parent_major_id int NOT NULL, + parent_qualified_name nvarchar(255) NULL, + class int NOT NULL, + class_desc nvarchar(60) NOT NULL, + major_id int NOT NULL, + qualified_name nvarchar(255) NULL, + principal_id int NULL, + is_server_lvl bit NOT NULL, + [path] nvarchar(max) NOT NULL, + PRIMARY KEY CLUSTERED (parent_class, parent_major_id, class, major_id) +); + +DECLARE @rules TABLE ( + _id int IDENTITY(1, 1) NOT NULL, + class tinyint NOT NULL, + class_desc nvarchar(60) NOT NULL, + major_id int NOT NULL, + minor_id int NOT NULL, + grantee_principal_id int NOT NULL, + grantee_is_server_lvl bit NOT NULL, + [permission_name] nvarchar(128) NOT NULL, + [state] char(1) NOT NULL, + state_desc nvarchar(60) NOT NULL, + inheritance varchar(100) NULL, + PRIMARY KEY CLUSTERED (class_desc, major_id, minor_id, grantee_is_server_lvl, _id) +); + + + +------------------------------------------------------------------------------- +--- PRINCIPALS +------------------------------------------------------------------------------- + + + +--- Server principals: +INSERT INTO @srv_principals +SELECT principal_id, [type_desc], [sid], [name] +FROM sys.server_principals +WHERE [sid] IS NOT NULL AND ( + @hide_system_principals=0 OR + @hide_system_principals=1 AND [type]!='C' AND UPPER([name]) NOT LIKE N'NT SERVICE\%'); + +--- Windows users that are members of Windows group logins can be +--- resolved using xp_logininfo: +BEGIN TRANSACTION; + + DECLARE logincur CURSOR LOCAL FOR SELECT [name] FROM @srv_principals WHERE [type_desc]=N'WINDOWS_GROUP'; + OPEN logincur; + + FETCH NEXT FROM logincur INTO @name; + WHILE (@@FETCH_STATUS=0) BEGIN; + + INSERT INTO @xp_logininfo + EXECUTE sys.xp_logininfo @acctname=@name, @option='members'; + + FETCH NEXT FROM logincur INTO @name; + END; + + CLOSE logincur; + DEALLOCATE logincur; + +COMMIT TRANSACTION; + +INSERT INTO @srv_principals (principal_id, [type_desc], [sid], [name]) +SELECT DISTINCT -DENSE_RANK() OVER (ORDER BY account_name) AS principal_id, N'WINDOWS_LOGIN', NEWID(), account_name +FROM @xp_logininfo +WHERE account_name NOT IN (SELECT [name] FROM @srv_principals WHERE [type_desc]=N'WINDOWS_LOGIN'); + +--- Server role members: +INSERT INTO @srv_members +SELECT role_principal_id, member_principal_id +FROM sys.server_role_members; + +--- All users are also members of the fixed server role "public": +INSERT INTO @srv_members (role_principal_id, member_principal_id) +SELECT r.principal_id, m.principal_id +FROM @srv_principals AS r +INNER JOIN @srv_principals AS m ON m.[type_desc]!='SERVER_ROLE' +WHERE r.[name]='public' AND m.principal_id>=0; + +--- User memberships implicit from their WINDOWS_GROUP logins: +INSERT INTO @srv_members (role_principal_id, member_principal_id) +SELECT r.principal_id, m.principal_id +FROM @xp_logininfo AS xp +INNER JOIN @srv_principals AS r ON xp.permission_path=r.[name] +INNER JOIN @srv_principals AS m ON xp.account_name=m.[name]; + +--- All local database principals: +INSERT INTO @db_principals (principal_id, [type_desc], [sid], [name]) +SELECT dp.principal_id, dp.[type_desc], dp.[sid], dp.[name] +FROM sys.database_principals AS dp +WHERE dp.[sid] IS NOT NULL; --- Don't include "INFORMATION_SCHEMA" and "sys" + +--- Implicit database principals inherited from their respective server principals: +INSERT INTO @db_principals (principal_id, [type_desc], [sid], [name]) +SELECT wl.principal_id, N'WINDOWS_USER' AS [type_desc], wl.[sid], wl.[name] +FROM @srv_principals AS wg +INNER JOIN @srv_members AS m ON wg.principal_id=m.role_principal_id AND m.member_principal_id<0 +INNER JOIN @srv_principals AS wl ON m.member_principal_id=wl.principal_id +INNER JOIN @db_principals AS dp ON dp.[sid]=wg.[sid]; + +--- Logins with sysadmin, except those who already have users: +INSERT INTO @db_principals (principal_id, [type_desc], [sid], [name], member_of) +SELECT (SELECT MAX(principal_id) FROM @db_principals)+ + ROW_NUMBER() OVER (ORDER BY sp.principal_id) AS principal_id, + 'USER', sp.[sid], sp.[name], dbo.principal_id +FROM @srv_principals AS sp +LEFT JOIN @db_principals AS db ON sp.[sid]=db.[sid] +INNER JOIN @db_principals AS dbo ON dbo.[name]=N'dbo' +WHERE db.[sid] IS NULL AND ( + sp.principal_id IN (SELECT grantee_principal_id FROM sys.server_permissions WHERE [permission_name]=N'CONTROL SERVER') OR + sp.principal_id=(SELECT owner_sid FROM sys.databases WHERE database_id=DB_ID()) OR + sp.principal_id IN (SELECT member_principal_id FROM sys.server_role_members WHERE role_principal_id=@sysadmin) + ); + +--- All users are members of the fixed database role public: +INSERT INTO @db_members (role_principal_id, member_principal_id) +SELECT r.principal_id, m.principal_id +FROM @db_principals AS r +INNER JOIN @db_principals AS m ON m.[type_desc]!='DATABASE_ROLE' +WHERE r.[name]='public'; + +--- Database role memberships: +INSERT INTO @db_members +SELECT role_principal_id, member_principal_id +FROM sys.database_role_members; + +--- Administrative users and the owner of the database are "members" of "dbo": +INSERT INTO @db_members +SELECT member_of, principal_id +FROM @db_principals +WHERE member_of IS NOT NULL AND member_of!=principal_id; + +--- Putting it all together: +WITH s_cte AS ( + --- Server principals (anchor) + SELECT principal_id AS declared_principal_id, + [type_desc] AS declared_type_desc, + [sid] AS declared_sid, + [name] AS declared_name, + principal_id AS effective_principal_id, + [type_desc] AS effective_type_desc, + [sid] AS effective_sid, + [name] AS effective_name, + 0 AS [level], + CAST((CASE WHEN [name] IN ('sa') THEN N'"'+[name]+N'"' ELSE LOWER(REPLACE([type_desc], N'_', N' ')) COLLATE database_default+N' "'+[name]+N'"' END) AS nvarchar(max)) AS [path] + FROM @srv_principals AS p + + UNION ALL + + --- (recursion) + SELECT s_cte.declared_principal_id, + s_cte.declared_type_desc, + s_cte.declared_sid, + s_cte.declared_name, + sp.principal_id AS effective_principal_id, + sp.[type_desc] AS effective_type_desc, + sp.[sid] AS effective_sid, + sp.[name] AS effective_name, + s_cte.[level]+1, + s_cte.[path]+' -> '+CAST((CASE WHEN sp.[name] IN ('sa') THEN N'"'+sp.[name]+N'"' ELSE LOWER(REPLACE(sp.[type_desc], N'_', N' ')) COLLATE database_default+N' "'+sp.[name]+N'"' END) AS nvarchar(max)) AS [path] + FROM @srv_members AS srm + INNER JOIN s_cte ON s_cte.effective_principal_id=srm.role_principal_id + INNER JOIN @srv_principals AS sp ON srm.member_principal_id=sp.principal_id), + + d_cte AS ( + --- Database principals (anchor) + SELECT principal_id AS declared_principal_id, + [type_desc] AS declared_type_desc, + [sid] AS declared_sid, + [name] AS declared_name, + principal_id AS effective_principal_id, + [type_desc] AS effective_type_desc, + [sid] AS effective_sid, + [name] AS effective_name, + 0 AS [level], + CAST((CASE WHEN [name] IN ('dbo') THEN N'"'+[name]+N'"' ELSE LOWER(REPLACE([type_desc], N'_', N' ')) COLLATE database_default+N' "'+[name]+N'"' END) AS nvarchar(max)) AS [path] + FROM @db_principals + + UNION ALL + + --- (recursion) + SELECT d_cte.declared_principal_id, + d_cte.declared_type_desc, + d_cte.declared_sid, + d_cte.declared_name, + dp.principal_id AS effective_principal_id, + dp.[type_desc] AS effective_type_desc, + dp.[sid] AS effective_sid, + dp.[name] AS effective_name, + d_cte.[level]+1, + d_cte.[path]+' -> '+CAST((CASE WHEN dp.[name] IN ('dbo') THEN N'"'+dp.[name]+N'"' ELSE LOWER(REPLACE(dp.[type_desc], N'_', N' ')) COLLATE database_default+N' "'+dp.[name]+N'"' END) AS nvarchar(max)) AS [path] + FROM @db_members AS drm + INNER JOIN d_cte ON d_cte.effective_principal_id=drm.role_principal_id + INNER JOIN @db_principals AS dp ON drm.member_principal_id=dp.principal_id), + + cte AS ( + --- Server principal hierarchy + SELECT declared_principal_id, + declared_type_desc, + declared_sid, + declared_name, + 1 AS declared_is_server_lvl, + effective_principal_id, + effective_type_desc, + effective_sid, + effective_name, + 1 AS effective_is_server_lvl, + [level], + [path] + FROM s_cte + + UNION ALL + + --- Database principal hierarchy + SELECT declared_principal_id, + declared_type_desc, + declared_sid, + declared_name, + 0 AS declared_is_server_lvl, + effective_principal_id, + effective_type_desc, + effective_sid, + effective_name, + 0 AS effective_is_server_lvl, + [level], + CAST([path] AS nvarchar(max)) AS [path] + FROM d_cte + + UNION ALL + + --- Connecting the server and database principal hierarchies + SELECT s_cte.declared_principal_id, + s_cte.declared_type_desc, + s_cte.declared_sid, + s_cte.declared_name, + 1 AS declared_is_server_lvl, + d_cte.effective_principal_id, + d_cte.effective_type_desc, + d_cte.effective_sid, + d_cte.effective_name, + 0 AS effective_is_server_lvl, + s_cte.[level]+d_cte.[level]+1, + s_cte.[path]+N' --> '+d_cte.[path] AS [path] + FROM s_cte + INNER JOIN d_cte ON s_cte.effective_sid=d_cte.declared_sid + ) + +INSERT INTO @principals +SELECT * FROM cte +WHERE @principal IS NULL OR + [path] LIKE N'%'+@principal+N'%'; + + + +------------------------------------------------------------------------------- +--- Permissions +------------------------------------------------------------------------------- + + + +INSERT INTO @builtin_permissions (class, permission, declared_class, declared_permission) +SELECT bip.class_desc AS class, bip.[permission_name] AS permission, + x.declared_class, x.declared_permission_name +FROM sys.fn_builtin_permissions(DEFAULT) AS bip +OUTER APPLY ( + --- Every permission can inherit permissions from up to two + --- other permissions: from a parent class, as well as from + --- other permissions in the same class: + SELECT bip.parent_class_desc, + bip.parent_covering_permission_name + WHERE bip.parent_covering_permission_name!='' + UNION ALL + SELECT bip.class_desc, + bip.covering_permission_name + WHERE bip.covering_permission_name!='' + ) AS x(declared_class, declared_permission_name); + +WITH cte AS ( + --- Anchor: + SELECT class, + permission, + class AS declared_class, + permission AS declared_permission, + CAST(permission+N' on '+class AS nvarchar(max)) AS [path], + 0 AS [level] + FROM @builtin_permissions AS p + GROUP BY class, permission + + UNION ALL + + --- Recursion: inherited permissions: + SELECT p.class, + p.permission, + cte.declared_class, + cte.declared_permission, + CAST(cte.[path]+N' -> '+(CASE WHEN p.permission=p.declared_permission OR @permission_list=1 THEN N'' ELSE p.permission+N' on ' END)+p.class AS nvarchar(max)) AS [path], + cte.[level]+1 + FROM @builtin_permissions AS p + INNER JOIN cte ON + p.declared_class=cte.class AND + p.declared_permission=cte.permission) + +--- Save the results into temporary work table: +INSERT INTO @permissions_temp (class, permission, declared_class, declared_permission, [path], [level]) +SELECT class, permission, declared_class, declared_permission, [path], [level] +FROM ( + SELECT class, permission, declared_class, declared_permission, [path], [level], + ROW_NUMBER() OVER (PARTITION BY class, permission, declared_class, declared_permission ORDER BY [level]) AS _rn + FROM cte + WHERE @permission IS NULL OR + [path] LIKE N'%'+@permission+N'%' OR + permission LIKE N'%'+@permission+N'%' + ) AS sub +WHERE _rn=1; + + + +--- If @permission_list is 0, dump the results into @permissions, and we're done. +INSERT INTO @permissions (class, permission, declared_class, declared_permission, [path], [level]) +SELECT class, permission, declared_class, declared_permission, [path], [level] +FROM @permissions_temp +WHERE @permission_list=0; + + + +--- If @permission_list is 1, compile a comma-separated list of permissions for +--- from the work table and insert into @permissions: +INSERT INTO @permissions (class, permission, declared_class, declared_permission, [path], [level]) +SELECT class, SUBSTRING(CAST((SELECT N', '+x.permission + FROM @permissions_temp AS x + WHERE x.declared_class=cte.declared_class AND + x.declared_permission=cte.declared_permission AND + x.class=cte.class + ORDER BY x.permission + FOR XML PATH(''), TYPE + ) AS nvarchar(max)), 3, 4000) AS permission, declared_class, declared_permission, MIN([path]), + DENSE_RANK() OVER (PARTITION BY class, declared_class, declared_permission ORDER BY MIN([level])) AS [level] +FROM @permissions_temp AS cte +WHERE @permission_list=1 AND ( + @permission IS NULL OR + [path] LIKE N'%'+@permission+N'%') +GROUP BY class, declared_class, declared_permission; + + + +------------------------------------------------------------------------------- +--- Securables +------------------------------------------------------------------------------- + + + +--- Insert all server-level and database-level securables into a working table: +WITH s(parent_class, parent_major_id, class, major_id, principal_id, class_desc, qualified_name, is_server_lvl) AS ( + -- SERVER + SELECT NULL AS parent_class, CAST(NULL AS int) AS parent_major_id, 100 AS class, 0 AS major_id, CAST(NULL AS int) AS principal_id, 'SERVER' AS class_desc, CAST(NULL AS nvarchar(max)) AS qualified_name, 1 AS is_server_lvl + UNION ALL + -- AVAILABILITY GROUP + SELECT 100 AS parent_class, 0 AS parent_major_id, 108 AS class, agr.replica_metadata_id AS major_id, NULL, 'AVAILABILITY GROUP', N'AVAILABILITY GROUP::'+QUOTENAME(ag.[name]), 1 AS is_server_lvl + FROM sys.availability_groups AS ag + INNER JOIN sys.availability_replicas agr on agr.group_id=ag.group_id + INNER JOIN sys.dm_hadr_availability_replica_states AS agrs ON agrs.replica_id=agr.replica_id AND agrs.is_local=1 + UNION ALL + -- ENDPOINT + SELECT 100 AS parent_class, 0 AS parent_major_id, 105 AS class, endpoint_id AS major_id, NULL, 'ENDPOINT', N'ENDPOINT::'+QUOTENAME([name]), 1 AS is_server_lvl + FROM master.sys.endpoints + UNION ALL + -- LOGIN, SERVER ROLE + SELECT 100 AS parent_class, 0 AS parent_major_id, 101 AS class, principal_id AS major_id, owning_principal_id, + (CASE [type] WHEN 'R' THEN N'SERVER ROLE' ELSE N'LOGIN' END), + (CASE [type] WHEN 'R' THEN N'SERVER ROLE' ELSE N'LOGIN' END)+N'::'+QUOTENAME([name]), 1 AS is_server_lvl + FROM master.sys.server_principals + UNION ALL + -- SEARCH PROPERTY LIST + SELECT 0 AS parent_class, 0 AS parent_major_id, 31 AS class, property_list_id AS major_id, principal_id, 'SEARCH PROPERTY LIST', N'SEARCH PROPERTY LIST::'+QUOTENAME([name]) COLLATE database_default, 0 AS is_server_lvl + FROM sys.registered_search_property_lists + UNION ALL + -- DATABASE + SELECT 100 AS parent_class, 0 AS parent_major_id, 0 AS class, 0 AS major_id, p.principal_id, 'DATABASE' AS class_desc, N'DATABASE::'+QUOTENAME(DB_NAME()), 0 AS is_server_lvl + FROM sys.databases AS db + LEFT JOIN sys.database_principals AS p ON db.owner_sid=p.[sid] + WHERE db.database_id=DB_ID() + UNION ALL + -- SCHEMA + SELECT 0 AS parent_class, 0 AS parent_major_id, 3 AS class, [schema_id] AS major_id, principal_id, 'SCHEMA' AS class_desc, N'SCHEMA::'+QUOTENAME([name]), 0 AS is_server_lvl + FROM sys.schemas + UNION ALL + --- OBJECT + SELECT 3 AS parent_class, o.[schema_id] AS parent_major_id, 1 AS class, o.[object_id] AS major_id, o.principal_id, 'OBJECT' AS class_desc, QUOTENAME(s.[name])+N'.'+QUOTENAME(o.[name]), 0 AS is_server_lvl + FROM sys.schemas AS s + INNER JOIN sys.objects AS o ON s.[schema_id]=o.[schema_id] + WHERE o.[type] NOT IN ('AF', 'C', 'D', 'F', 'IT', 'PG', 'PK', 'R', 'RF', 'S', 'SN', 'TA', 'TR', 'UQ', 'X') + UNION ALL + -- USER, ROLE + SELECT 0 AS parent_class, 0 AS parent_major_id, 4 AS class, principal_id AS major_id, owning_principal_id AS principal_id, + (CASE [type] WHEN 'A' THEN N'APPLICATION ROLE' WHEN 'R' THEN N'ROLE' ELSE N'USER' END), + (CASE [type] WHEN 'A' THEN N'APPLICATION ROLE' WHEN 'R' THEN N'ROLE' ELSE N'USER' END)+N'::'+QUOTENAME([name]), 0 AS is_server_lvl + FROM sys.database_principals + UNION ALL + -- ASSEMBLY + SELECT 0 AS parent_class, 0 AS parent_major_id, 5 AS class, assembly_id AS major_id, principal_id, 'ASSEMBLY', N'ASSEMBLY::'+QUOTENAME([name]), 0 AS is_server_lvl + FROM sys.assemblies + UNION ALL + -- TYPE + SELECT 3 AS parent_class, t.[schema_id] AS parent_major_id, 6 AS class, t.user_type_id AS major_id, t.principal_id, 'TYPE' AS class_desc, N'TYPE::'+QUOTENAME(s.[name])+N'.'+QUOTENAME(t.[name]), 0 AS is_server_lvl + FROM sys.schemas AS s + INNER JOIN sys.types AS t ON s.[schema_id]=t.[schema_id] + WHERE t.is_user_defined=1 + UNION ALL + -- XML_SCHEMA_COLLECTION + SELECT 3 AS parent_class, x.[schema_id] AS parent_major_id, 10 AS class, x.xml_collection_id AS major_id, x.principal_id, 'XML SCHEMA COLLECTION' AS class_desc, N'XML SCHEMA COLLECTION::'+QUOTENAME(s.[name])+N'.'+QUOTENAME(x.[name]), 0 AS is_server_lvl + FROM sys.schemas AS s + INNER JOIN sys.xml_schema_collections AS x ON s.[schema_id]=x.[schema_id] + UNION ALL + -- MESSAGE_TYPE + SELECT 0 AS parent_class, 0 AS parent_major_id, 15 AS class, message_type_id AS major_id, principal_id, 'MESSAGE TYPE', N'MESSAGE TYPE::'+QUOTENAME([name]), 0 AS is_server_lvl + FROM sys.service_message_types + UNION ALL + -- SERVICE_CONTRACT + SELECT 0 AS parent_class, 0 AS parent_major_id, 16 AS class, service_contract_id AS major_id, principal_id, 'SERVICE CONTRACT', N'SERVICE CONTRACT::'+QUOTENAME([name]), 0 AS is_server_lvl + FROM sys.service_contracts + UNION ALL + -- SERVICE + SELECT 0 AS parent_class, 0 AS parent_major_id, 17 AS class, service_id AS major_id, principal_id, 'SERVICE', N'SERVICE::'+QUOTENAME([name]), 0 AS is_server_lvl + FROM sys.services + UNION ALL + -- REMOTE_SERVICE_BINDING + SELECT 0 AS parent_class, 0 AS parent_major_id, 18 AS class, remote_service_binding_id AS major_id, principal_id, 'REMOTE SERVICE BINDING', N'REMOTE SERVICE BINDING::'+QUOTENAME([name]), 0 AS is_server_lvl + FROM sys.remote_service_bindings + UNION ALL + -- ROUTE + SELECT 0 AS parent_class, 0 AS parent_major_id, 19 AS class, route_id AS major_id, principal_id, 'ROUTE', N'ROUTE::'+QUOTENAME([name]), 0 AS is_server_lvl + FROM sys.routes + UNION ALL + -- FULLTEXT CATALOG + SELECT 0 AS parent_class, 0 AS parent_major_id, 23 AS class, fulltext_catalog_id AS major_id, principal_id, 'FULLTEXT CATALOG', N'CATALOG::'+QUOTENAME([name]), 0 AS is_server_lvl + FROM sys.fulltext_catalogs + UNION ALL + -- FULLTEXT STOPLIST + SELECT 0 AS parent_class, 0 AS parent_major_id, 23 AS class, stoplist_id AS major_id, principal_id, 'FULLTEXT STOPLIST', N'STOPLIST::'+QUOTENAME([name]), 0 AS is_server_lvl + FROM sys.fulltext_stoplists + UNION ALL + -- SYMMETRIC KEY + SELECT 0 AS parent_class, 0 AS parent_major_id, 24 AS class, symmetric_key_id AS major_id, principal_id, 'SYMMETRIC KEY', N'SYMMETRIC KEY::'+QUOTENAME([name]), 0 AS is_server_lvl + FROM sys.symmetric_keys + UNION ALL + -- CERTIFICATE + SELECT 0 AS parent_class, 0 AS parent_major_id, 25 AS class, certificate_id AS major_id, principal_id, 'CERTIFICATE', N'CERTIFICATE::'+QUOTENAME([name]), 0 AS is_server_lvl + FROM sys.certificates + UNION ALL + -- ASYMMETRIC_KEY + SELECT 0 AS parent_class, 0 AS parent_major_id, 26 AS class, asymmetric_key_id AS major_id, principal_id, 'CERTIFICATE', N'CERTIFICATE::'+QUOTENAME([name]), 0 AS is_server_lvl + FROM sys.asymmetric_keys) + +INSERT INTO @securables_temp (parent_class, parent_major_id, class, major_id, principal_id, class_desc, qualified_name, is_server_lvl) +SELECT parent_class, parent_major_id, class, major_id, principal_id, class_desc, qualified_name, is_server_lvl +FROM s; + +--- Build a hierarchy of @securables_temp, using a recursive CTE: +WITH cte AS ( + SELECT class AS parent_class, major_id AS parent_major_id, ISNULL(qualified_name, N'SERVER') AS parent_qualified_name, + class, class_desc, major_id, qualified_name, principal_id, is_server_lvl, 0 AS [level], CAST(ISNULL(qualified_name, 'SERVER') AS nvarchar(max)) AS [path] + FROM @securables_temp AS s + + UNION ALL + + SELECT cte.parent_class, cte.parent_major_id, cte.parent_qualified_name, + s.class, s.class_desc, s.major_id, s.qualified_name, s.principal_id, s.is_server_lvl, cte.[level]+1, CAST(cte.[path]+N' -> '+s.qualified_name AS nvarchar(max)) + FROM cte + INNER JOIN @securables_temp AS s ON cte.class=s.parent_class AND cte.major_id=s.parent_major_id) + +--- Eliminate duplicates and insert all parent-child paths into @securables: +INSERT INTO @securables (parent_class, parent_major_id, parent_qualified_name, class, class_desc, major_id, qualified_name, principal_id, is_server_lvl, [path]) +SELECT parent_class, parent_major_id, parent_qualified_name, class, class_desc, major_id, qualified_name, principal_id, is_server_lvl, [path] +FROM ( + SELECT parent_class, parent_major_id, parent_qualified_name, class, class_desc, major_id, qualified_name, principal_id, is_server_lvl, [path], + ROW_NUMBER() OVER (PARTITION BY parent_class, parent_major_id, class, major_id ORDER BY [level], [path]) AS _rn + FROM cte + WHERE @securable IS NULL OR + REPLACE(REPLACE(qualified_name, N']', N''), N'[', N'') LIKE REPLACE(REPLACE(@securable, N']', N''), N'[', N'') +) AS sub +WHERE _rn=1; + + + +------------------------------------------------------------------------------- +--- Rules (the intersection of principals, securables and permissions) +------------------------------------------------------------------------------- + + + +--- Explicit server-level permissions: +INSERT INTO @rules (class, class_desc, major_id, minor_id, grantee_principal_id, grantee_is_server_lvl, [permission_name], [state], state_desc, inheritance) +SELECT class, + class_desc, + major_id, + minor_id, + grantee_principal_id, + 1 AS grantee_is_server_lvl, + [permission_name], + [state], + state_desc, + CAST(NULL AS varchar(100)) AS inheritance +FROM sys.server_permissions; + +--- Explicit database-level permissions: +INSERT INTO @rules (class, class_desc, major_id, minor_id, grantee_principal_id, grantee_is_server_lvl, [permission_name], [state], state_desc, inheritance) +SELECT class, + class_desc, + major_id, + minor_id, + grantee_principal_id, + 0 AS grantee_is_server_lvl, + [permission_name], + [state], + state_desc, + CAST(NULL AS varchar(100)) AS inheritance +FROM sys.database_permissions; + +--- Implicit CONTROL permissions on class objects as a result of ownership: +INSERT INTO @rules (class, class_desc, major_id, minor_id, grantee_principal_id, grantee_is_server_lvl, [permission_name], [state], state_desc, inheritance) +SELECT class, + class_desc, + major_id, + 0 AS minor_id, + principal_id AS grantee_principal_id, + is_server_lvl AS grantee_is_server_lvl, + 'CONTROL' AS [permission_name], + 'W' AS [state], + 'GRANT_WITH_GRANT_OPTION' AS [state_desc], + 'OWNER' AS inheritance +FROM @securables +WHERE parent_class=class AND parent_major_id=major_id AND principal_id IS NOT NULL; + +--- Fixed server role permissions: +INSERT INTO @rules (class, class_desc, major_id, minor_id, grantee_principal_id, grantee_is_server_lvl, [permission_name], [state], state_desc, inheritance) +SELECT 100 AS class, + N'SERVER' AS class_desc, + 0 AS major_id, + 0 AS minor_id, + sp.principal_id AS grantee_principal_id, + 1 AS grantee_is_server_lvl, + p.[permission_name], + 'G' AS [state], + 'GRANT' AS state_desc, + NULL AS inheritance +FROM sys.server_principals AS sp +INNER JOIN sys.fn_builtin_permissions('SERVER') AS p ON + sp.[name]='bulkadmin' AND + p.[permission_name]='ADMINISTER BULK OPERATIONS' OR + + sp.[name]='dbcreator' AND + p.[permission_name]='CREATE ANY DATABASE' OR + + sp.[name]='diskadmin' AND + p.[permission_name]='ALTER RESOURCES' OR + + sp.[name]='processadmin' AND + p.[permission_name] IN ('ALTER ANY CONNECTION', + 'ALTER SERVER STATE') OR + sp.[name]='sysadmin' AND + p.[permission_name]='CONTROL SERVER' OR + + sp.[name]='securityadmin' AND + p.[permission_name]='ALTER ANY LOGIN' OR + + sp.[name]='serveradmin' AND + p.[permission_name] IN ('ALTER ANY ENDPOINT', 'ALTER RESOURCES', + 'ALTER SERVER STATE', 'ALTER SETTINGS', + 'SHUTDOWN', 'VIEW SERVER STATE') OR + + sp.[name]='setupadmin' AND + p.[permission_name]='ALTER ANY LINKED SERVER' +WHERE sp.is_fixed_role=1; + +--- Fixed database role permissions: +INSERT INTO @rules (class, class_desc, major_id, minor_id, grantee_principal_id, grantee_is_server_lvl, [permission_name], [state], state_desc, inheritance) +SELECT 0 AS class, + 'DATABASE' AS class_desc, + 0 AS major_id, + 0 AS minor_id, + dp.principal_id AS grantee_principal_id, + 0 AS grantee_is_server_lvl, + p.[permission_name], + s.[state], + s.state_desc, + NULL AS inheritance +FROM sys.database_principals AS dp +CROSS JOIN ( + VALUES ('G', 'GRANT'), + ('D', 'DENY')) AS s([state], state_desc) +INNER JOIN sys.fn_builtin_permissions('DATABASE') AS p ON + dp.[name]='db_accessadmin' AND s.[state]='G' AND + p.[permission_name] IN ('ALTER ANY USER', 'CREATE SCHEMA') OR + + dp.[name]='db_backupoperator' AND s.[state]='G' AND + p.[permission_name] IN ('BACKUP DATABASE', 'BACKUP LOG', 'CHECKPOINT') OR + + dp.[name]='db_datareader' AND s.[state]='G' AND + p.[permission_name]='SELECT' OR + + dp.[name]='db_datawriter' AND s.[state]='G' AND + p.[permission_name] IN ('INSERT', 'DELETE', 'UPDATE') OR + + dp.[name]='db_denydatareader' AND s.[state]='D' AND + p.[permission_name]='SELECT' OR + + dp.[name]='db_denydatawriter' AND s.[state]='D' AND + p.[permission_name] IN ('INSERT', 'DELETE', 'UPDATE') OR + + dp.[name]='db_ddladmin' AND s.[state]='G' AND + p.[permission_name] IN ('ALTER ANY ASSEMBLY', 'ALTER ANY ASYMMETRIC KEY', + 'ALTER ANY CERTIFICATE', 'ALTER ANY CONTRACT', + 'ALTER ANY DATABASE DDL TRIGGER', 'ALTER ANY DATABASE EVENT', + 'NOTIFICATION', 'ALTER ANY DATASPACE', 'ALTER ANY FULLTEXT CATALOG', + 'ALTER ANY MESSAGE TYPE', 'ALTER ANY REMOTE SERVICE BINDING', + 'ALTER ANY ROUTE', 'ALTER ANY SCHEMA', 'ALTER ANY SERVICE', + 'ALTER ANY SYMMETRIC KEY', 'CHECKPOINT', 'CREATE AGGREGATE', + 'CREATE DEFAULT', 'CREATE FUNCTION', 'CREATE PROCEDURE', + 'CREATE QUEUE', 'CREATE RULE', 'CREATE SYNONYM', 'CREATE TABLE', + 'CREATE TYPE', 'CREATE VIEW', 'CREATE XML SCHEMA COLLECTION', + 'REFERENCES') OR + + dp.[name]='db_owner' AND s.[state]='G' AND + p.[permission_name]='CONTROL' OR + + dp.[name]='db_securityadmin' AND s.[state]='G' AND + p.[permission_name] IN ('ALTER ANY APPLICATION ROLE', 'ALTER ANY ROLE', + 'CREATE SCHEMA', 'VIEW DEFINITION') + +WHERE dp.[type]='R' AND + dp.is_fixed_role=1; + + + +------------------------------------------------------------------------------- +--- Output: +------------------------------------------------------------------------------- + + + +--- If @output_xml=1, use the OUTPUT variable @xml to return a blob: +IF (@output_xml=1) + SELECT @xml=( + SELECT perms.state_desc AS [@state], + + --- Permission hierarchy: + (SELECT p.permission AS [@name], + p.class as [@class], + (CASE WHEN p.[level]=0 THEN 'declared' ELSE 'effective' END) AS [@inheritance] + FROM @permissions AS p + WHERE perms.class_desc COLLATE database_default=p.declared_class AND + perms.[permission_name] COLLATE database_default=p.declared_permission + FOR XML PATH('permission'), TYPE + ) AS [permissions], + + --- Securables hierarchy: + (SELECT sec.class_desc AS [@class], + sec.major_id AS [@major_id], + NULLIF(perms.minor_id, 0) AS [@minor_id], + sec.qualified_name+ISNULL(N'('+QUOTENAME(col.[name] COLLATE database_default)+N')', N'') AS [@name], + (CASE WHEN sec.class=sec.parent_class AND sec.major_id=sec.parent_major_id THEN 'declared' ELSE 'effective' END) AS [@inheritance] + FROM @securables AS sec + WHERE perms.class=sec.parent_class AND + perms.major_id=sec.parent_major_id + FOR XML PATH('securable'), TYPE + ) AS securables, + + --- Principals hierarchy: + (SELECT grantee.effective_principal_id AS [@principal_id], + grantee.effective_type_desc AS [@type], + grantee.effective_name AS [@name], + (CASE WHEN grantee.[level]=0 THEN 'declared' ELSE 'effective' END) AS [@inheritance] + FROM @principals AS grantee + WHERE grantee.declared_is_server_lvl=perms.grantee_is_server_lvl AND + grantee.declared_principal_id=perms.grantee_principal_id + ORDER BY grantee.[level] + FOR XML PATH('principal'), TYPE + ) AS principals, + + --- The SQL statement of the declared permission: + (CASE + --- Explicit GRANT/DENY: + WHEN perms.inheritance IS NULL THEN + (CASE perms.[state] WHEN 'W' THEN N'GRANT' ELSE perms.state_desc END)+ + N' '+perms.[permission_name] COLLATE database_default+ + ISNULL(N' ON '+NULLIF(def_sec.parent_qualified_name, N'SERVER')+ISNULL(N'('+QUOTENAME(col.[name] COLLATE database_default)+N')', N''), N'')+ + N' TO '+QUOTENAME(def_grantee.declared_name)+ + (CASE WHEN perms.[state]='W' THEN N' WITH GRANT OPTION' ELSE N'' END) + + --- Inferred CONTROL by ownership: ALTER AUTHORIZATION + WHEN perms.inheritance='OWNER' THEN + N'ALTER AUTHORIZATION '+ + ISNULL(N' ON '+def_sec.parent_qualified_name, N'')+ + N' TO '+QUOTENAME(def_grantee.declared_name) COLLATE database_default + END) AS [declared_permission/@sql] + FROM @rules AS perms + INNER JOIN @principals AS def_grantee ON + def_grantee.declared_is_server_lvl=perms.grantee_is_server_lvl AND + def_grantee.declared_principal_id=perms.grantee_principal_id AND + def_grantee.[level]=0 + INNER JOIN @permissions AS def_p ON + perms.class_desc COLLATE database_default=(CASE WHEN def_p.declared_class IN (N'USER', N'ROLE') THEN N'DATABASE_PRINCIPAL' ELSE def_p.declared_class END) AND + perms.[permission_name] COLLATE database_default=def_p.declared_permission AND + def_p.[level]=0 + INNER JOIN @securables AS def_sec ON + perms.class=def_sec.parent_class AND + perms.major_id=def_sec.parent_major_id AND + def_p.class=def_sec.class_desc AND + def_sec.class=def_sec.parent_class AND + def_sec.major_id=def_sec.parent_major_id + LEFT JOIN sys.columns AS col ON + perms.grantee_is_server_lvl=0 AND + perms.class_desc='OBJECT' AND + perms.major_id=col.[object_id] AND + perms.minor_id=col.column_id + WHERE (@principal IS NULL OR def_grantee.effective_name LIKE @principal) AND + (@securable IS NULL OR def_sec.qualified_name LIKE @securable) AND + (@permission IS NULL OR perms.[permission_name] LIKE @permission) + FOR XML PATH('permission'), TYPE); + +--- If @output_xml=0, return a tabular resultset with all inherited permutations: +IF (@output_xml=0) + SELECT perms.state_desc AS [state], + perms.[permission_name] AS permission, + sec.parent_qualified_name AS securable, + grantee.declared_name AS principal, + + --- The SQL statement of the declared permission: + (CASE + --- Explicit GRANT/DENY: + WHEN perms.inheritance IS NULL THEN + (CASE perms.[state] WHEN 'W' THEN N'GRANT' ELSE perms.state_desc END)+ + N' '+perms.[permission_name] COLLATE database_default+ + ISNULL(N' ON '+NULLIF(sec.parent_qualified_name, N'SERVER')+ISNULL(N'('+QUOTENAME(col.[name] COLLATE database_default)+N')', N''), N'')+ + N' TO '+QUOTENAME(grantee.declared_name)+ + (CASE WHEN perms.[state]='W' THEN N' WITH GRANT OPTION' ELSE N'' END) + + --- Inferred CONTROL by ownership: ALTER AUTHORIZATION + WHEN perms.inheritance='OWNER' THEN + N'ALTER AUTHORIZATION '+ + ISNULL(N' ON '+sec.parent_qualified_name, N'')+ + N' TO '+QUOTENAME(grantee.declared_name) COLLATE database_default + END) AS declared_permission, + + --- Effective permissions: + (CASE MIN((CASE WHEN [state]='D' THEN 0 ELSE 1 END)) OVER (PARTITION BY sec.class, sec.major_id, perms.minor_id, p.permission) WHEN 0 THEN N'DENY' ELSE N'GRANT' END) AS effective_state, + p.permission AS effective_permission, + sec.qualified_name AS effective_securable, + grantee.effective_name AS effective_principal, + + --- Paths (the explanation for the effective permissions) + p.[path] AS permission_path, + sec.[path] AS securable_path, + grantee.[path] AS principal_path + FROM @rules AS perms + INNER JOIN @principals AS grantee ON + grantee.declared_is_server_lvl=perms.grantee_is_server_lvl AND + grantee.declared_principal_id=perms.grantee_principal_id + LEFT JOIN sys.columns AS col ON + perms.grantee_is_server_lvl=0 AND + perms.class_desc='OBJECT' AND + perms.major_id=col.[object_id] AND + perms.minor_id=col.column_id + INNER JOIN @permissions AS p ON + perms.class_desc COLLATE database_default=(CASE WHEN p.declared_class IN (N'USER', N'ROLE') THEN N'DATABASE_PRINCIPAL' ELSE p.declared_class END) AND + perms.[permission_name] COLLATE database_default=p.declared_permission AND + ( p.class IN ('SERVER', 'SERVER_PRINCIPAL', 'ENDPOINT') AND grantee.effective_is_server_lvl=1 OR + p.class NOT IN ('SERVER', 'SERVER_PRINCIPAL', 'ENDPOINT') AND grantee.effective_is_server_lvl=0) + INNER JOIN @securables AS sec ON + perms.class=sec.parent_class AND + perms.major_id=sec.parent_major_id AND + p.class=sec.class_desc + WHERE (@principal IS NULL OR grantee.effective_name LIKE @principal) AND + (@securable IS NULL OR sec.qualified_name LIKE @securable) AND + (@permission IS NULL OR perms.[permission_name] LIKE @permission OR p.permission LIKE @permission) + ORDER BY sec.parent_class, + sec.parent_qualified_name, + p.declared_permission, + perms.state_desc, + grantee.declared_name, + p.permission, + sec.qualified_name, + grantee.effective_name; +GO + + +--- This marks master.dbo.sp_help_permissions as a "system object", which makes +--- it accessible from any database without the "master." prefix. It +--- also sets the execution context of the procedure to the database +--- where it was called. +--- +--- Not available on Azure SQL Database. +--- +--- NOTE: sp_MS_marksystemobject is an undocumented, unsupported +--- feature of SQL Server. + +IF (DB_NAME()='master' AND CAST(SERVERPROPERTY('Edition') AS varchar(100)) NOT LIKE '%Azure%') + EXECUTE sys.sp_MS_marksystemobject @objname=N'sp_help_permissions'; +GO diff --git a/Stored_Procedure/dbo.sp_ns_shrink_db_log.sql b/Stored_Procedure/dbo.sp_ns_shrink_db_log.sql new file mode 100644 index 00000000..3efe91c1 --- /dev/null +++ b/Stored_Procedure/dbo.sp_ns_shrink_db_log.sql @@ -0,0 +1,123 @@ +/* +Author: Andy Novick +Original link: https://www.mssqltips.com/sqlservertip/2097/how-to-shrink-the-transaction-log-file-in-sql-server +Desctiption: Shrink the transaction log file in SQL Server +*/ + + SET ANSI_NULLS ON +GO + +SET QUOTED_IDENTIFIER ON +GO + +IF OBJECT_ID('dbo.ns_shrink_db_log', 'P') IS NULL +EXECUTE('CREATE PROCEDURE dbo.ns_shrink_db_log as SELECT 1'); +GO + +ALTER PROCEDURE dbo.ns_shrink_db_log +( + @db_name SYSNAME = NULL + , @target_size_mb INT = 2 + , @backup_location NVARCHAR(200) = NULL + , @backup_file_name NVARCHAR(200) = NULL + , @maximum_attempts INT = 10 +) +/* Shrinks the log file of @db_name to the @target_size_mb +* +exec [dbo].[ns_shrink_db_log] 'db_name', 2, 'c:\temp\' + , 'shrink_backup', 4 +************************************************************/ +AS + +SET NOCOUNT ON + +SELECT @db_name = COALESCE(@db_name, DB_NAME()) + +DECLARE @logical_log_file_name SYSNAME, + @backup_log_sql NVARCHAR(MAX), + @shrink_sql NVARCHAR(MAX), + @checkpoint_sql NVARCHAR(MAX), + @db_id INT = DB_ID (@db_name), + @start_size_mb INT, + @final_size_mb INT, + @attempts INT = 0, + @recovery_model INT, + @recovery_model_desc SYSNAME, + @rc INT = 0 -- return code + +SELECT @logical_log_file_name = name, + @start_size_mb = size / 128 + FROM master..sysaltfiles + WHERE dbid=@db_id AND fileid=2 + +SELECT @recovery_model = recovery_model + , @recovery_model_desc = recovery_model_desc + FROM sys.databases + WHERE database_id=@db_id + +PRINT 'Starting size of [' + @db_name + '].[' + + @logical_log_file_name + + '] is ' + + CONVERT(VARCHAR(20), @start_size_mb) + ' MB ' + + ' recovery model = ' + @recovery_model_desc + +IF @start_size_mb <= @target_size_mb BEGIN + PRINT '['+@db_name+'] does not need shrinking' + END + +ELSE BEGIN + + + IF @recovery_model != 3 + AND (@backup_file_name IS NULL OR @backup_location IS NULL) BEGIN + RAISERROR ('Null backup file location or name. aborting.', 16, 1) + SET @rc = 50000 + GOTO get_out + END + + WHILE @attempts < @maximum_attempts + AND @target_size_mb < (SELECT CONVERT(INT, size/128) FROM master..sysaltfiles + WHERE dbid = @db_id AND + name = @logical_log_file_name) -- not target + BEGIN + + SET @attempts = @attempts + 1 + + IF @recovery_model= 3 BEGIN + SET @checkpoint_sql = 'use ['+@db_name+']; ' + + 'checkpoint' + PRINT @checkpoint_sql + EXEC (@checkpoint_sql) + END + ELSE BEGIN + SET @backup_log_sql = 'BACKUP LOG ['+ @db_name + '] ' + + ' to disk = ''' + @backup_location + + CASE WHEN RIGHT(RTRIM(@backup_location), 1)='\' + THEN '' ELSE '\' END + + @backup_file_name + + CONVERT(VARCHAR(10), @attempts) + + '.trn''' + PRINT @backup_log_sql + + EXEC (@backup_log_sql) -- See if a trunc of the log shrinks it. + END + + SET @shrink_sql = 'use ['+@db_name+'];' + + 'dbcc shrinkfile (['+@logical_log_file_name+'], ' + + CONVERT(VARCHAR(20), @target_size_mb) + ')' + EXEC (@shrink_sql) + END +END + +SELECT @final_size_mb = size/128 + FROM master..sysaltfiles + WHERE dbid = @db_id AND name = @logical_log_file_name + +PRINT 'Final size of [' + @db_name + '].[' + + @logical_log_file_name + + '] is ' + + CONVERT(VARCHAR(20),@final_size_mb) + + ' MB' + +get_out: +RETURN @rc diff --git a/Stored_Procedure/dbo.sp_sizing.sql b/Stored_Procedure/dbo.sp_sizing.sql new file mode 100644 index 00000000..95b278fd --- /dev/null +++ b/Stored_Procedure/dbo.sp_sizing.sql @@ -0,0 +1,220 @@ +USE [master] +GO + +IF OBJECT_ID (N'dbo.sp_sizing', 'P') IS NULL + EXECUTE('CREATE PROCEDURE sp_sizing AS SELECT 1'); +GO + +ALTER PROCEDURE dbo.sp_sizing( + @granularity VARCHAR(1) = NULL + , @database_name SYSNAME = NULL +) +AS +/*------------------------------------------------------------- +dbo.sp_sizing Stored Procedure +Created by Tim Ford, www.sqlcruise.com, www.thesqlagentman.com +Use freely but review code before executing. +Code downloaded from internet so execute at your own risk. +-------------------------------------------------------------*/ + +DECLARE @sql_command VARCHAR(5000) + +CREATE TABLE #Results ([server] NVARCHAR(128), [database_name] NVARCHAR(128), [file_name] NVARCHAR(128), [physical_name] NVARCHAR(260), + [file_type] VARCHAR(4), [total_size_mb] INT, [available_space_mb] INT, [growth_units] VARCHAR(15), [max_file_size_mb] INT) + +SELECT @sql_command = +'USE [?] INSERT INTO #Results([server], [database_name], [file_name], [physical_name], +[file_type], [total_size_mb], [available_space_mb], +[growth_units], [max_file_size_mb]) +SELECT CONVERT(nvarchar(128), SERVERPROPERTY(''Servername'')), DB_NAME(), +[name] AS [file_name], +physical_name AS [physical_name], +[file_type] = +CASE type +WHEN 0 THEN ''Data''' ++ + 'WHEN 1 THEN ''Log''' ++ + 'END, +[total_size_mb] = +CASE ceiling([size]/128) +WHEN 0 THEN 1 +ELSE ceiling([size]/128) +END, +[available_space_mb] = +CASE ceiling([size]/128) +WHEN 0 THEN (1 - CAST(FILEPROPERTY([name], ''SpaceUsed''' + ') as int) /128) +ELSE (([size]/128) - CAST(FILEPROPERTY([name], ''SpaceUsed''' + ') as int) /128) +END, +[growth_units] = +CASE [is_percent_growth] +WHEN 1 THEN CAST([growth] AS varchar(20)) + ''%''' ++ + 'ELSE CAST([growth]/1024*8 AS varchar(20)) + ''Mb''' ++ + 'END, +[max_file_size_mb] = +CASE [max_size] +WHEN -1 THEN NULL +WHEN 268435456 THEN NULL +ELSE [max_size]/1024*8 +END +FROM sys.database_files WITH (NOLOCK) +ORDER BY [file_type], [file_id]' + +--Print the command to be issued against all databases +--PRINT @sql_command + +--======================================== +--RUN COMMAND AGAINST EACH DATABASE +--======================================== +EXEC sp_MSforeachdb @sql_command + + +--================================= +--RETURN THE RESULTS + +--If @database_name is NULL: +--================================= +IF @database_name IS NULL + BEGIN + IF @granularity= 'd' /* Database Scope */ + BEGIN + SELECT + T.[server], T.[database_name], + T.[total_size_mb] AS [db_size_mb], + T.[available_space_mb] AS [db_free_mb], + T.[used_space_mb] AS [db_used_mb], + D.[total_size_mb] AS [data_size_mb], + D.[available_space_mb] AS [data_free_mb], + D.[used_space_mb] AS [data_used_mb], + CEILING(CAST(D.[available_space_mb] AS decimal(10,1)) / D.[total_size_mb]*100) AS [data_free_pct], + L.[total_size_mb] AS [log_size_mb], + L.[available_space_mb] AS [log_free_mb], + L.[used_space_mb] AS [log_used_mb], + CEILING(CAST(L.[available_space_mb] AS decimal(10,1)) / L.[total_size_mb]*100) AS [log_free_pct] + FROM + ( + SELECT [server], [database_name], + SUM([total_size_mb]) AS [total_size_mb], + SUM([available_space_mb]) AS [available_space_mb], + SUM([total_size_mb]-[available_space_mb]) AS [used_space_mb] + FROM #Results + GROUP BY [server], [database_name] + ) AS T + INNER JOIN + ( + SELECT [server], + [database_name], + SUM([total_size_mb]) AS [total_size_mb], + SUM([available_space_mb]) AS [available_space_mb], + SUM([total_size_mb]-[available_space_mb]) AS [used_space_mb] + FROM #Results + WHERE #Results.[file_type] = 'Data' + GROUP BY [server], [database_name] + ) AS D ON T.[database_name] = D.[database_name] + INNER JOIN + ( + SELECT [server], + [database_name], + SUM([total_size_mb]) AS [total_size_mb], + SUM([available_space_mb]) AS [available_space_mb], + SUM([total_size_mb]-[available_space_mb]) AS [used_space_mb] + FROM #Results + WHERE #Results.[file_type] = 'Log' + GROUP BY [server], [database_name] + ) AS L ON T.[database_name] = L.[database_name] + ORDER BY D.[database_name] + END + ELSE /* File Scope */ + BEGIN + SELECT [server], + [database_name], + [file_name], + [physical_name], + [file_type], + [total_size_mb] AS [db_size_mb], + [available_space_mb] AS [db_free_mb], + CEILING(CAST([available_space_mb] AS DECIMAL(10,1)) / [total_size_mb]*100) AS [free_space_pct], + [growth_units], + [max_file_size_mb] /* AS [Grow Max Size (Mb)] */ + FROM #Results + ORDER BY database_name, file_type, [file_name] + END + END + +--================================= +--RETURN THE RESULTS FOR A DATABASE + +--If @database_name is provided: +--================================= +ELSE + BEGIN + IF @granularity= 'd' /* Database Scope */ + BEGIN + SELECT + T.[server], + T.[database_name], + T.[total_size_mb] AS [db_size_mb], + T.[available_space_mb] AS [db_free_mb], + T.[used_space_mb] AS [db_used_mb], + D.[total_size_mb] AS [data_size_mb], + D.[available_space_mb] AS [data_free_mb], + D.[used_space_mb] AS [data_used_mb], + CEILING(CAST(D.[available_space_mb] AS DECIMAL(10,1)) / D.[total_size_mb]*100) AS [data_free_pct], + L.[total_size_mb] AS [log_size_mb], + L.[available_space_mb] AS [log_free_mb], + L.[used_space_mb] AS [log_used_mb], + CEILING(CAST(L.[available_space_mb] AS DECIMAL(10,1)) / L.[total_size_mb]*100) AS [log_free_pct] + FROM + ( + SELECT [server], [database_name], + SUM([total_size_mb]) AS [total_size_mb], + SUM([available_space_mb]) AS [available_space_mb], + SUM([total_size_mb]-[available_space_mb]) AS [used_space_mb] + FROM #Results + WHERE [database_name] = @database_name + GROUP BY [server], [database_name] + ) AS T + INNER JOIN + ( + SELECT [server], [database_name], + SUM([total_size_mb]) AS [total_size_mb], + SUM([available_space_mb]) AS [available_space_mb], + SUM([total_size_mb]-[available_space_mb]) AS [used_space_mb] + FROM #Results + WHERE #Results.[file_type] = 'Data' + AND [database_name] = @database_name + GROUP BY [server], [database_name] + ) AS D ON T.[database_name] = D.[database_name] + INNER JOIN + ( + SELECT [server], [database_name], + SUM([total_size_mb]) AS [total_size_mb], + SUM([available_space_mb]) AS [available_space_mb], + SUM([total_size_mb]-[available_space_mb]) AS [used_space_mb] + FROM #Results + WHERE #Results.[file_type] = 'Log' + AND [database_name] = @database_name + GROUP BY [server], [database_name] + ) AS L ON T.[database_name] = L.[database_name] + ORDER BY D.[database_name] + END + ELSE /* File Scope */ + BEGIN + SELECT [server], + [database_name], + [file_name], + [physical_name], + [file_type], + [total_size_mb] AS [db_size_mb], + [available_space_mb] AS [db_free_mb], + CEILING(CAST([available_space_mb] AS DECIMAL(10,1)) / [total_size_mb]*100) AS [free_space_pct], + [growth_units], + [max_file_size_mb] /* AS [Grow Max Size (Mb)] */ + FROM #Results + WHERE [database_name] = @database_name + ORDER BY file_type, [file_name] + END + END +GO diff --git a/Stored_Procedure/sp_sqltrace.sql b/Stored_Procedure/dbo.sp_sqltrace.sql similarity index 97% rename from Stored_Procedure/sp_sqltrace.sql rename to Stored_Procedure/dbo.sp_sqltrace.sql index a878831e..659ef789 100644 --- a/Stored_Procedure/sp_sqltrace.sql +++ b/Stored_Procedure/dbo.sp_sqltrace.sql @@ -1,611 +1,611 @@ -/*--------------------------------------------------------------------- - $Header: /WWW/sqlutil/sqltrace.sp 7 16-02-17 21:51 Sommar $ - - sp_sqltrace - Run an SQL batch or snoop another process. Trace it. - Analyse the trace. Written by Lee Tudor. - - Copyright © 2008-2012 Lee Tudor. - - $History: sqltrace.sp $ - * - * ***************** Version 7 ***************** - * User: Sommar Date: 16-02-17 Time: 21:51 - * Updated in $/WWW/sqlutil - * Fixed overflow error when @snoop_time exceeded 2147 seconds. - * - * ***************** Version 6 ***************** - * User: Sommar Date: 15-03-15 Time: 22:36 - * Updated in $/WWW/sqlutil - * - * ***************** Version 5 ***************** - * User: Sommar Date: 12-10-27 Time: 22:34 - * Updated in $/WWW/sqlutil - * Fixed error in the deployment header. - * - * ***************** Version 4 ***************** - * User: Sommar Date: 12-10-27 Time: 18:53 - * Updated in $/WWW/sqlutil - * Major overhaul: - * * Renamed to sp_sqltrace, so you can put it in master and use it - * anywhere. - * * If @batch is a number => Snoop that spid. - * * If @batch is a GUID => Reanalyse an existing file, for instance with - * different sort order. - * * On SQL 2008 and later waitstats information is collected by default - * and the waits are mapped to statements. - * * The min parameters have been renamed. - * * Pararameters have been added to control size and directory for trace - * files. - * * New parameters to control how and which plans that are displayed in - * result set. - * - * ***************** Version 3 ***************** - * User: Sommar Date: 10-08-21 Time: 22:03 - * Updated in $/WWW/sqlutil - * Behzad Sadeghi pointed out that plans were missing for dynamic SQL - * invoked through sp_executesql, but not EXEC(). This was due to an - * inconsistency in SQL Server, which I have reported on Connect.With help - * Behzad I have implemented a workaround for the issue. - * - * ***************** Version 2 ***************** - * User: Sommar Date: 08-11-29 Time: 23:29 - * Updated in $/WWW/sqlutil - * First release on the web site. ----------------------------------------------------------------------*/ -IF object_id('dbo.sp_sqltrace') IS NULL - EXEC ('CREATE PROCEDURE dbo.sp_sqltrace AS RETURN') -GO - - -ALTER PROCEDURE dbo.sp_sqltrace - @batch nvarchar(max), -- sql batch to analyse, @@SPID to snoop, GUID to replay - @minimum_reads bigint = 1, -- min reads (logical) - @minimum_cpu int = 0, -- min cpu Duration (milliseconds) - @minimum_duration bigint = 0, -- min Duration (microseconds) - @factor varchar(50) = 'Duration', -- % (Duration, Reads, Writes, Cpu) - @order varchar(50) = '', -- order (Duration, Reads, Writes, Cpu) - @plans varchar(50) = '', -- include query plans - intensive (Actual, Estimated) - @group_plans bit = 0, -- removes guery plan parameteters for grouping - @plan_reads int = 1, -- include only plans which do this many reads - @rollback bit = 0, -- run in a transaction and rollback - @trace_timeout int = 300, -- set a maximum trace duration (seconds) - @snoop_time int = 10, -- For how long time a spid should be snooped. - @server_directory varchar(100) = 'c:\temp\', -- SQL server directory to write the trace files - @file_size bigint = 10, -- Size in megabytes per trace file - @show_waits bit = NULL -AS -BEGIN - SET NOCOUNT ON; - DECLARE @sql_version int, - @snooping bit, - @trace_id int, - @spid int, - @file_path nvarchar(256), - @file_name nvarchar(100), - @plan int, - @on bit, - @stop_time datetime, - @time_offset int, - @total bigint, - @compile_count int, - @compile_cpu int, - @compile_duration int, - @eventsessname sysname, - @event_sql nvarchar(MAX), - @minnestlevel smallint; - - CREATE TABLE #Results ( - [timestamp] datetime NOT NULL, - [event_class] smallint NOT NULL, - [sub_class] smallint NULL, - [text_data] nvarchar(max) COLLATE Latin1_General_BIN2 NOT NULL, - [routine_name] nvarchar(128) COLLATE Latin1_General_BIN2 NOT NULL, - [nesting] smallint NULL, - [line_number] smallint NULL, - [duration] bigint NULL, - [reads] int NULL, - [cpu] int NULL, - [writes] int NULL, - [compile_count] int NULL, - [compile_cpu] int NULL, - [compile_duration] bigint NULL, - [xplan] xml NULL, - csum AS checksum(nesting, routine_name, line_number, text_data), - [sequence] bigint NOT NULL, - [xplan_sequence] bigint NULL, - PRIMARY KEY(event_class, sequence) - ); - - CREATE TABLE #xe_file (record xml NOT NULL, - rowno int NOT NULL); - - CREATE TABLE #Waits ( - [wait_type] varchar(100) NOT NULL, - [duration] bigint NOT NULL, - [signal_duration] bigint NOT NULL, - [text_data] nvarchar(max) - COLLATE Latin1_General_BIN2 NULL DEFAULT(''), - [routine_name] nvarchar(128) - COLLATE Latin1_General_BIN2 NULL DEFAULT(''), - [nesting] smallint NULL DEFAULT(0), - [line_number] smallint NULL DEFAULT(0), - [csum] int NOT NULL, - [id] int NOT NULL - PRIMARY KEY([csum], [wait_type], [id]) - ); - - CREATE TABLE #wait_types (wait_id varchar(20) COLLATE Latin1_General_BIN2 NOT NULL PRIMARY KEY, - wait_type varchar(100) NOT NULL); - - WITH version_string (version) AS ( - SELECT cast(serverproperty('ProductVersion') AS nvarchar(128)) - ) - SELECT @sql_version = cast(substring(version, 1, charindex('.', version) - 1) AS int) - FROM version_string - - IF @sql_version < 10 - SET @show_waits = 0; - - IF @server_directory NOT LIKE '%\' - SELECT @server_directory = @server_directory + '\' - - -- Are we replaying a trace guid, snooping another spid, or tracing ourselves? - IF @batch LIKE '________[-=]____[-=]____[-=]____[-=]____________' - BEGIN - SELECT @file_path = @server_directory + @batch, - @snooping = CASE WHEN @batch LIKE '%=%' THEN 1 ELSE 0 END; - END - ELSE IF @batch NOT LIKE '%[^0-9]%' - BEGIN - SELECT @snooping = 1, - @spid = @batch, - @batch = 'WAITFOR DELAY ' + - QUOTENAME(convert(char(8), - dateadd(SECOND, convert(int, @snoop_time), - '00:00:00'), 108), ''''); - IF @snoop_time >= @trace_timeout - SELECT @trace_timeout = @snoop_time + 2 - END ELSE - SELECT @snooping = 0, - @spid = @@spid; - - IF @file_path IS NOT NULL - GOTO do_analysis - - IF @show_waits IS NULL - SELECT @show_waits = CASE WHEN @plans > '' THEN 0 ELSE 1 END - - SELECT @on = 1, - @file_name = replace(cast(newid() as char(36)), '-', CASE @snooping WHEN 1 THEN '=' ELSE '-' END), - @file_path = @server_directory + @file_name, - @plan = CASE lower(@plans) - WHEN 'actual' THEN 146 - WHEN 'estimated' THEN 122 - END, - @stop_time = dateadd(second, @trace_timeout, getdate()), - @eventsessname = 'sqlTraceWaits_' + convert(varchar, @@spid); - - PRINT 'EXEC sp_sqltrace ''' + @file_name + '''' + - CASE WHEN @server_directory = 'c:\temp\' THEN '' ELSE ', @server_directory = '+ QUOTENAME(@server_directory, '''') END + - CASE WHEN @show_waits = 1 THEN ', @show_waits = 1' ELSE '' END + - CASE WHEN @plans > '' THEN ', @plans = ' + QUOTENAME(@plans, '''') ELSE '' END; - - EXEC sp_trace_create @trace_id output, 2, @file_path, @file_size, @stop_time; - - IF @plan IS NOT NULL BEGIN - EXEC sp_trace_setevent @trace_id, @plan, 1, @on; -- XML Plan - EXEC sp_trace_setevent @trace_id, @plan, 5, @on; -- XML Plan / Line - EXEC sp_trace_setevent @trace_id, @plan, 34, @on; -- XML Plan / ObjectName - EXEC sp_trace_setevent @trace_id, @plan, 51, @on; -- XML Plan / EventSequence - EXEC sp_trace_setevent @trace_id, @plan, 15, @on; -- XML Plan / EndTime - END - - EXEC sp_trace_setevent @trace_id, 45, 51, @on; -- SP:StmtCompleted / EventSeq - EXEC sp_trace_setevent @trace_id, 41, 51, @on; -- SQL:StmtCompleted / EventSeq - EXEC sp_trace_setevent @trace_id,166, 51, @on; -- SQL:Stmtcompile / EventSeq - EXEC sp_trace_setevent @trace_id,166, 21, @on; -- SQL:Stmtcompile / Subclass - EXEC sp_trace_setevent @trace_id,166, 1, @on; -- SQL:StmtCompile / TextData - EXEC sp_trace_setevent @trace_id, 45, 1, @on; -- SP:StmtCompleted / TextData - EXEC sp_trace_setevent @trace_id, 41, 1, @on; -- SQL:StmtCompleted / TextData - EXEC sp_trace_setevent @trace_id, 45, 13, @on; -- SP:StmtCompleted / Duration - EXEC sp_trace_setevent @trace_id, 41, 13, @on; -- SQL:StmtCompleted / Duration - EXEC sp_trace_setevent @trace_id, 45, 16, @on; -- SP:StmtCompleted / Reads - EXEC sp_trace_setevent @trace_id, 41, 16, @on; -- SQL:StmtCompleted / Reads - EXEC sp_trace_setevent @trace_id, 45, 17, @on; -- SP:StmtCompleted / Writes - EXEC sp_trace_setevent @trace_id, 41, 17, @on; -- SQL:StmtCompleted / Writes - EXEC sp_trace_setevent @trace_id, 45, 18, @on; -- SP:StmtCompleted / cpu - EXEC sp_trace_setevent @trace_id, 41, 18, @on; -- SQL:StmtCompleted / cpu - EXEC sp_trace_setevent @trace_id, 45, 5, @on; -- SP:StmtCompleted / Line - EXEC sp_trace_setevent @trace_id, 41, 5, @on; -- SQL:StmtCompleted / Line - EXEC sp_trace_setevent @trace_id, 45, 15, @on; -- SP:StmtCompleted / EndTime - EXEC sp_trace_setevent @trace_id, 41, 15, @on; -- SQL:StmtCompleted / EndTime - EXEC sp_trace_setevent @trace_id, 45, 34, @on; -- SP:StmtCompleted / ObjectName - EXEC sp_trace_setevent @trace_id, 45, 29, @on; -- SP:StmtCompleted / NestLevel - - EXEC sp_trace_setfilter @trace_id, 12, 0, 0, @spid; -- spid = @spid - EXEC sp_trace_setfilter @trace_id, 13, 0, 4, @minimum_duration; -- duration >= @minimum_duration - EXEC sp_trace_setfilter @trace_id, 16, 0, 4, @minimum_reads; -- reads >= @minimum_reads - EXEC sp_trace_setfilter @trace_id, 18, 0, 4, @minimum_cpu; -- cpu >= @minimum_cpu - - -- collect wait stats via extended events - IF @show_waits=1 BEGIN - SET @event_sql = replace(' - IF EXISTS (SELECT * FROM sys.server_event_sessions WHERE name = ''***'') - DROP EVENT SESSION *** ON SERVER; - - CREATE EVENT SESSION *** ON SERVER - ADD EVENT sqlos.wait_info - (ACTION (package0.collect_system_time) - WHERE sqlserver.session_id=' + CAST(@spid as varchar) + - ' AND opcode=1), - ADD EVENT sqlos.wait_info_external - (ACTION (package0.collect_system_time) - WHERE sqlserver.session_id=' + CAST(@spid as varchar) + - ' AND opcode=1) - ADD TARGET package0.asynchronous_file_target - (SET FILENAME = N' + QUOTENAME(@file_path + '.xel', '''') +', - METADATAFILE = N' + QUOTENAME(@file_path + '.xem', '''') +') - WITH (max_dispatch_latency = 1 seconds); - - ALTER EVENT SESSION *** ON SERVER STATE = START;', '***', @eventsessname); - EXEC(@event_sql); - END - - IF @rollback=1 - BEGIN TRAN; - - -- Run the batch, considering that it may fail. - BEGIN TRY - EXEC sp_trace_setstatus @trace_id, 1; - EXEC (@batch); - EXEC sp_trace_setstatus @trace_id, 0; - END TRY - BEGIN CATCH - DECLARE @msg nvarchar(2048); - SELECT @msg = 'Batch failed with: ' + error_message(); - RAISERROR(@msg, 16, 1) WITH NOWAIT; - EXEC sp_trace_setstatus @trace_id, 0; - END CATCH - - IF @@trancount > 0 - ROLLBACK; - - IF @show_waits = 1 - BEGIN - EXEC('ALTER EVENT SESSION ' + @eventsessname + ' ON SERVER STATE = STOP;'); - EXEC('DROP EVENT SESSION ' + @eventsessname + ' ON SERVER;'); - END - - -- Stop and delete ttace and event sessions. - EXEC sp_trace_setstatus @trace_id, 2; - -do_analysis: - RAISERROR('Batch completed. Analysis started', 0, 1) WITH NOWAIT; - - -- load trace - INSERT #Results (timestamp, event_class, sub_class, text_data, - routine_name, line_number, nesting, - duration, reads, cpu, writes, sequence) - SELECT IsNull(EndTime, ''), - CASE EventClass WHEN 45 THEN 41 WHEN 122 THEN 146 ELSE EventClass END, - EventSubClass, - coalesce(TextData, ''), - CASE WHEN ObjectName IS NOT NULL THEN ObjectName - WHEN TextData LIKE N'SELECT StatMan%' THEN '-- AutoStats' - ELSE 'Dynamic SQL' - END, - coalesce(LineNumber, 0) AS LineNumber, COALESCE(NestLevel - CASE @snooping - WHEN 1 THEN 0 ELSE 2 - END, 0), - Duration, Reads, cpu, Writes, EventSequence - FROM fn_trace_gettable ( @file_path + '.trc' , default ) - WHERE EventClass < 255 - AND (@plans > '' OR EventClass NOT IN (122, 146)); - - -- sequence compiles. - UPDATE SP SET - compile_count = 1, - sub_class = RC.sub_class - FROM #Results RC - CROSS APPLY( - SELECT TOP 1 * - FROM #Results R - WHERE R.event_class = 41 - AND R.text_data = RC.text_data - AND R.sequence > RC.sequence - ORDER BY R.sequence - ) SP - WHERE RC.event_class = 166; - - -- sequence query plans, but only if reads exceeds @plan_reads, or there is - -- recompile. - IF @plans > '' - BEGIN - BEGIN TRY - UPDATE R SET - xplan = CASE WHEN R.reads >= @plan_reads - THEN convert(xml, S.text_data) - END, - xplan_sequence = S.sequence - FROM #Results R - CROSS APPLY ( - SELECT TOP 1 S.text_data, S.sequence, S.event_class - FROM #Results S - WHERE S.sequence < R.sequence - AND S.line_number = R.line_number - AND S.routine_name = R.routine_name - AND S.event_class = 146 - ORDER BY S.sequence DESC - ) AS S - WHERE (R.reads >= @plan_reads OR R.compile_count = 1) - AND R.event_class = 41 - OPTION (RECOMPILE); - END TRY - -- Not plans convert to xml, so we have a fallback where we run a cursor. - BEGIN CATCH - - DECLARE @sequence bigint - DECLARE plancur CURSOR STATIC LOCAL FOR - SELECT sequence - FROM #Results - WHERE (reads >= @plan_reads OR compile_count = 1) - AND event_class = 41; - - OPEN plancur - - WHILE 1 = 1 - BEGIN - FETCH plancur INTO @sequence - IF @@fetch_status <> 0 - BREAK - - BEGIN TRY - UPDATE R SET - xplan = CASE WHEN R.reads >= @plan_reads - THEN convert(xml, S.text_data) - END, - xplan_sequence = S.sequence - FROM #Results R - CROSS APPLY ( - SELECT TOP 1 S.text_data, S.sequence - FROM #Results S - WHERE S.sequence < R.sequence - AND S.line_number = R.line_number - AND S.routine_name = R.routine_name - AND S.event_class = 146 - ORDER BY S.sequence DESC - ) AS S - WHERE R.sequence = @sequence - AND R.event_class = 41; - END TRY - BEGIN CATCH - END CATCH - END - - DEALLOCATE plancur - END CATCH; - - -- Get compile statistics - WITH XMLNAMESPACES - (DEFAULT 'http://schemas.microsoft.com/sqlserver/2004/07/showplan') - , X AS ( - SELECT sequence, - convert(xml, text_data) AS xplan - FROM #Results - WHERE event_class = 146 - ) - UPDATE R - SET compile_cpu = xp.c.value('@CompileCPU','int'), - compile_duration = xp.c.value('@CompileTime','int') - FROM #Results R - JOIN X ON R.xplan_sequence = X.sequence - CROSS APPLY X.xplan.nodes('/ShowPlanXML/BatchSequence/Batch/Statements/StmtSimple/QueryPlan') AS xp(c) - WHERE R.compile_count = 1 - AND R.event_class = 41 - OPTION (RECOMPILE); - - IF @group_plans = 1 - BEGIN; - WITH XMLNAMESPACES - (DEFAULT 'http://schemas.microsoft.com/sqlserver/2004/07/showplan') - UPDATE #Results - SET xplan.modify('delete (/ShowPlanXML/BatchSequence/Batch/Statements/StmtSimple/QueryPlan/ParameterList)[1]') - WHERE xplan IS NOT NULL; - END - END - - -- display wait stats - IF @show_waits = 1 BEGIN - SET @time_offset = datediff(Hour, getutcdate(), getdate()); - - -- Index created with dynamic SQL, since syntax is not good on SQL 2005. - EXEC ('CREATE UNIQUE INDEX timestamp_ix ON #Results (event_class, timestamp, sequence) - INCLUDE (nesting) WHERE event_class = 41'); - - -- Save wait ids in a temporary table to avoid the DMV in the big query below.. - INSERT #wait_types(wait_id, wait_type) - SELECT convert(varchar(10), map_key), map_value - FROM sys.dm_xe_map_values - WHERE name = 'wait_types'; - - INSERT #xe_file (record, rowno) - SELECT cast(event_data AS xml), row_number() OVER (ORDER BY (SELECT NULL)) - FROM sys.fn_xe_file_target_read_file ( - @file_path + '*.xel', - @file_path + '*.xem', null, null); - - - WITH extracted_data AS ( - SELECT rowno, - -- We get all data from the value element, even if this is more complex. By avoiding - -- reading the text elements as well, we gain some performance. - d.data.value('@name', 'nvarchar(30)') COLLATE Latin1_General_BIN2 AS what, - d.data.value('(value/text())[1]', 'nvarchar(100)') COLLATE Latin1_General_BIN2 AS value_elem - FROM #xe_file x - CROSS APPLY x.record.nodes('/event/*') d(data) - ) - - INSERT #Waits (id, csum, wait_type, duration, signal_duration, nesting, routine_name, line_number, text_data) - SELECT agg.id, coalesce(SP.csum, 0), agg.wait_type, agg.duration, isnull(agg.signal_duration, 0), - SP.nesting, SP.routine_name, SP.line_number, SP.text_data - FROM ( - SELECT MIN(rowno) id, timestamp, wait_type, Sum(duration) duration, Sum(signal_duration) signal_duration - FROM ( - SELECT rowno, - MIN (CASE what WHEN 'wait_type' THEN wt.wait_type END) wait_type, - MIN (CASE what WHEN 'duration' THEN CAST(value_elem AS bigint) END) duration, - MIN (CASE what WHEN 'signal_duration' THEN CAST(value_elem AS bigint) END) signal_duration, - MIN (CASE what WHEN 'collect_system_time' - THEN dateadd(Hour, @time_offset, CASE @sql_version - -- In SQL 2008 the value element for collect system time is the time - -- in number of ticks since 1601-01-01(!). This calls for some weird - -- math. - WHEN 10 THEN dateadd(ms, cast(value_elem as bigint) /10000 % 1000, - dateadd(ss, - cast(value_elem as bigint) /10000000 - cast(145731 AS bigint) * 86400, - '20000101')) - ELSE value_elem - END) - END) AS timestamp - FROM extracted_data ed - LEFT JOIN #wait_types wt ON wt.wait_id = ed.value_elem - WHERE what in ('wait_type','duration','signal_duration', 'collect_system_time') - GROUP BY rowno - ) partialagg - GROUP BY timestamp, wait_type - ) agg - OUTER APPLY ( - SELECT top 1 R.csum, R.nesting, R.routine_name, R.line_number, R.text_data - FROM #Results R - WHERE R.event_class = 41 - AND R.timestamp >= agg.timestamp - AND R.nesting >= 0 - ORDER BY R.timestamp, R.sequence - ) SP - END; - - -- total measure - SELECT - @total = nullif(max( - CASE lower(@factor) - WHEN 'cpu' THEN cpu - WHEN 'reads' THEN reads - WHEN 'writes' THEN writes - ELSE duration - END), 0), - @compile_duration = sum(compile_duration), - @compile_cpu = sum(compile_cpu), - @compile_count = sum(CASE WHEN event_class=166 THEN 1 ELSE 0 END), - @minnestlevel = min(CASE WHEN event_class IN (41, 45) THEN nesting END) - FROM #Results; - - IF @snooping = 1 BEGIN - SELECT @total = nullif(SUM( - CASE lower(@factor) - WHEN 'cpu' THEN cpu - WHEN 'reads' THEN reads - WHEN 'writes' THEN writes - ELSE duration - END), 0) - FROM #Results - WHERE nesting = @minnestlevel; - - INSERT #Results (timestamp, event_class, text_data, routine_name, - line_number, nesting, duration, sequence) - VALUES (getdate(), 41, 'EXEC (snoop)', 'sp_sqltrace', - 0, -1, @snoop_time*convert(bigint, 1000000), 9223372036854775807); - END; - - UPDATE #Results SET - compile_duration = @compile_duration, - compile_cpu = @compile_cpu, - compile_count = @compile_count - WHERE routine_name = 'sp_sqltrace' - AND nesting = -1; - - -- results - SELECT CASE WHEN nesting = -1 THEN '' - ELSE isnull(cast(nullif(floor((@total/2 + 100.0 * sum(CASE lower(@factor) - WHEN 'cpu' THEN cpu + IsNull(compile_cpu, 0) - WHEN 'reads' THEN reads - WHEN 'writes' THEN writes - ELSE duration + IsNull(compile_duration, 0) - END)) / @total), 0) as varchar) + '%', '') - END AS Factor, - CASE WHEN text_data LIKE 'EXEC%' THEN '\---- ' + text_data - WHEN text_data LIKE 'SELECT StatMan%' THEN 'Statistics -- ' + text_data - ELSE text_data - END AS Text, - CASE WHEN nesting = -1 OR COUNT(*)=1 THEN '' - ELSE cast(count(*) as varchar) END AS Calls, - CASE WHEN nesting = -1 THEN '' - ELSE cast(nesting as varchar) END AS Nesting, - CASE WHEN nesting = -1 THEN '' - ELSE routine_name + ' - ' + - cast(line_number as varchar) - END [Object - Line], - cast(sum(duration) / 1000.0 as numeric(18,2)) AS Duration, - isnull(cast(nullif(sum(cpu),0) as varchar),'') AS Cpu, - isnull(cast(nullif(sum(reads),0) as varchar),'') AS Reads, - isnull(cast(nullif(sum(writes),0) as varchar),'') AS Writes, - isnull(CASE WHEN @show_waits = 0 THEN NULL - WHEN nesting = -1 THEN STUFF(( - SELECT '| '+ CASE WHEN Sum(signal_duration) > 0 - THEN '[' + Cast(Sum(signal_duration) as varchar) + 'sig]' - ELSE '' - END + - cast(sum(duration) as varchar) + 'ms=' + - W.wait_type + '(' + cast(count(*) as varchar) + - ')' AS [data()] - FROM #Waits W - GROUP BY W.wait_type - ORDER BY Sum(duration) DESC, Count(*) DESC - FOR XML PATH('')), 1, 2, '') - ELSE STUFF((SELECT '| ' + CASE WHEN Sum(signal_duration) > 0 - THEN '[' + Cast(Sum(signal_duration) as varchar) + 'sig]' - ELSE '' - END + - cast(sum(duration) as varchar) + 'ms=' + - W.wait_type + '(' + cast(count(*) as varchar) + ')' AS [data()] - FROM #Waits W - WHERE W.csum = R.csum - AND W.nesting = R.nesting - AND W.routine_name = R.routine_name - AND W.line_number = R.line_number - AND W.text_data = R.text_data - GROUP BY W.wait_type - ORDER BY Sum(duration) DESC, Count(*) DESC - FOR XML PATH('') - ), 1, 2, '') END, '') AS Waits, - isnull(cast(nullif(sum(compile_count), 0) as varchar),'') AS Compiles, - CASE MIN(sub_class) - WHEN 1 THEN 'Local' WHEN 2 THEN 'Stats' WHEN 3 THEN 'DNR' - WHEN 4 THEN 'SET' WHEN 5 THEN 'Temp' WHEN 6 THEN 'Remote' - WHEN 7 THEN 'Browse' WHEN 8 THEN 'QN' WHEN 9 THEN 'MPI' - WHEN 10 THEN 'Cursor' WHEN 11 THEN 'Manual' - ELSE COALESCE(cast(MIN (sub_class) as varchar), '') - END + - CASE WHEN min(sub_class) <> max(sub_class) THEN ' +more' ELSE '' END AS Reason, - CASE WHEN sum(compile_count) > 0 - THEN isnull(cast(sum(compile_duration) as varchar), '?') - ELSE '' - END AS Comp_Duration, - CASE WHEN sum(compile_count) > 0 - THEN isnull(cast(sum(compile_cpu) as varchar), '?') - ELSE '' - END AS Comp_Cpu, - cast(cast(xplan as nvarchar(max)) as xml) XPlan - FROM #Results R - WHERE event_class = 41 - GROUP BY csum, nesting, routine_name, line_number, text_data, - Cast(xplan as nvarchar(max)) - ORDER BY min(CASE WHEN @order='' THEN sequence END), - sum(CASE lower(@order) - WHEN 'cpu' THEN cpu + IsNull(compile_cpu, 0) - WHEN 'reads' THEN reads - WHEN 'writes' THEN writes - ELSE duration + IsNull(compile_duration, 0) - END) DESC - OPTION (RECOMPILE) -END -GO +/*--------------------------------------------------------------------- + $Header: /WWW/sqlutil/sqltrace.sp 7 16-02-17 21:51 Sommar $ + + sp_sqltrace - Run an SQL batch or snoop another process. Trace it. + Analyse the trace. Written by Lee Tudor. + + Copyright © 2008-2012 Lee Tudor. + + $History: sqltrace.sp $ + * + * ***************** Version 7 ***************** + * User: Sommar Date: 16-02-17 Time: 21:51 + * Updated in $/WWW/sqlutil + * Fixed overflow error when @snoop_time exceeded 2147 seconds. + * + * ***************** Version 6 ***************** + * User: Sommar Date: 15-03-15 Time: 22:36 + * Updated in $/WWW/sqlutil + * + * ***************** Version 5 ***************** + * User: Sommar Date: 12-10-27 Time: 22:34 + * Updated in $/WWW/sqlutil + * Fixed error in the deployment header. + * + * ***************** Version 4 ***************** + * User: Sommar Date: 12-10-27 Time: 18:53 + * Updated in $/WWW/sqlutil + * Major overhaul: + * * Renamed to sp_sqltrace, so you can put it in master and use it + * anywhere. + * * If @batch is a number => Snoop that spid. + * * If @batch is a GUID => Reanalyse an existing file, for instance with + * different sort order. + * * On SQL 2008 and later waitstats information is collected by default + * and the waits are mapped to statements. + * * The min parameters have been renamed. + * * Pararameters have been added to control size and directory for trace + * files. + * * New parameters to control how and which plans that are displayed in + * result set. + * + * ***************** Version 3 ***************** + * User: Sommar Date: 10-08-21 Time: 22:03 + * Updated in $/WWW/sqlutil + * Behzad Sadeghi pointed out that plans were missing for dynamic SQL + * invoked through sp_executesql, but not EXEC(). This was due to an + * inconsistency in SQL Server, which I have reported on Connect.With help + * Behzad I have implemented a workaround for the issue. + * + * ***************** Version 2 ***************** + * User: Sommar Date: 08-11-29 Time: 23:29 + * Updated in $/WWW/sqlutil + * First release on the web site. +---------------------------------------------------------------------*/ +IF object_id('dbo.sp_sqltrace') IS NULL + EXEC ('CREATE PROCEDURE dbo.sp_sqltrace AS RETURN') +GO + + +ALTER PROCEDURE dbo.sp_sqltrace + @batch nvarchar(max), -- sql batch to analyse, @@SPID to snoop, GUID to replay + @minimum_reads bigint = 1, -- min reads (logical) + @minimum_cpu int = 0, -- min cpu Duration (milliseconds) + @minimum_duration bigint = 0, -- min Duration (microseconds) + @factor varchar(50) = 'Duration', -- % (Duration, Reads, Writes, Cpu) + @order varchar(50) = '', -- order (Duration, Reads, Writes, Cpu) + @plans varchar(50) = '', -- include query plans - intensive (Actual, Estimated) + @group_plans bit = 0, -- removes guery plan parameteters for grouping + @plan_reads int = 1, -- include only plans which do this many reads + @rollback bit = 0, -- run in a transaction and rollback + @trace_timeout int = 300, -- set a maximum trace duration (seconds) + @snoop_time int = 10, -- For how long time a spid should be snooped. + @server_directory varchar(100) = 'c:\temp\', -- SQL server directory to write the trace files + @file_size bigint = 10, -- Size in megabytes per trace file + @show_waits bit = NULL +AS +BEGIN + SET NOCOUNT ON; + DECLARE @sql_version int, + @snooping bit, + @trace_id int, + @spid int, + @file_path nvarchar(256), + @file_name nvarchar(100), + @plan int, + @on bit, + @stop_time datetime, + @time_offset int, + @total bigint, + @compile_count int, + @compile_cpu int, + @compile_duration int, + @eventsessname sysname, + @event_sql nvarchar(MAX), + @minnestlevel smallint; + + CREATE TABLE #Results ( + [timestamp] datetime NOT NULL, + [event_class] smallint NOT NULL, + [sub_class] smallint NULL, + [text_data] nvarchar(max) COLLATE Latin1_General_BIN2 NOT NULL, + [routine_name] nvarchar(128) COLLATE Latin1_General_BIN2 NOT NULL, + [nesting] smallint NULL, + [line_number] smallint NULL, + [duration] bigint NULL, + [reads] int NULL, + [cpu] int NULL, + [writes] int NULL, + [compile_count] int NULL, + [compile_cpu] int NULL, + [compile_duration] bigint NULL, + [xplan] xml NULL, + csum AS checksum(nesting, routine_name, line_number, text_data), + [sequence] bigint NOT NULL, + [xplan_sequence] bigint NULL, + PRIMARY KEY(event_class, sequence) + ); + + CREATE TABLE #xe_file (record xml NOT NULL, + rowno int NOT NULL); + + CREATE TABLE #Waits ( + [wait_type] varchar(100) NOT NULL, + [duration] bigint NOT NULL, + [signal_duration] bigint NOT NULL, + [text_data] nvarchar(max) + COLLATE Latin1_General_BIN2 NULL DEFAULT(''), + [routine_name] nvarchar(128) + COLLATE Latin1_General_BIN2 NULL DEFAULT(''), + [nesting] smallint NULL DEFAULT(0), + [line_number] smallint NULL DEFAULT(0), + [csum] int NOT NULL, + [id] int NOT NULL + PRIMARY KEY([csum], [wait_type], [id]) + ); + + CREATE TABLE #wait_types (wait_id varchar(20) COLLATE Latin1_General_BIN2 NOT NULL PRIMARY KEY, + wait_type varchar(100) NOT NULL); + + WITH version_string (version) AS ( + SELECT cast(serverproperty('ProductVersion') AS nvarchar(128)) + ) + SELECT @sql_version = cast(substring(version, 1, charindex('.', version) - 1) AS int) + FROM version_string + + IF @sql_version < 10 + SET @show_waits = 0; + + IF @server_directory NOT LIKE '%\' + SELECT @server_directory = @server_directory + '\' + + -- Are we replaying a trace guid, snooping another spid, or tracing ourselves? + IF @batch LIKE '________[-=]____[-=]____[-=]____[-=]____________' + BEGIN + SELECT @file_path = @server_directory + @batch, + @snooping = CASE WHEN @batch LIKE '%=%' THEN 1 ELSE 0 END; + END + ELSE IF @batch NOT LIKE '%[^0-9]%' + BEGIN + SELECT @snooping = 1, + @spid = @batch, + @batch = 'WAITFOR DELAY ' + + QUOTENAME(convert(char(8), + dateadd(SECOND, convert(int, @snoop_time), + '00:00:00'), 108), ''''); + IF @snoop_time >= @trace_timeout + SELECT @trace_timeout = @snoop_time + 2 + END ELSE + SELECT @snooping = 0, + @spid = @@spid; + + IF @file_path IS NOT NULL + GOTO do_analysis + + IF @show_waits IS NULL + SELECT @show_waits = CASE WHEN @plans > '' THEN 0 ELSE 1 END + + SELECT @on = 1, + @file_name = replace(cast(newid() as char(36)), '-', CASE @snooping WHEN 1 THEN '=' ELSE '-' END), + @file_path = @server_directory + @file_name, + @plan = CASE lower(@plans) + WHEN 'actual' THEN 146 + WHEN 'estimated' THEN 122 + END, + @stop_time = dateadd(second, @trace_timeout, getdate()), + @eventsessname = 'sqlTraceWaits_' + convert(varchar, @@spid); + + PRINT 'EXEC sp_sqltrace ''' + @file_name + '''' + + CASE WHEN @server_directory = 'c:\temp\' THEN '' ELSE ', @server_directory = '+ QUOTENAME(@server_directory, '''') END + + CASE WHEN @show_waits = 1 THEN ', @show_waits = 1' ELSE '' END + + CASE WHEN @plans > '' THEN ', @plans = ' + QUOTENAME(@plans, '''') ELSE '' END; + + EXEC sp_trace_create @trace_id output, 2, @file_path, @file_size, @stop_time; + + IF @plan IS NOT NULL BEGIN + EXEC sp_trace_setevent @trace_id, @plan, 1, @on; -- XML Plan + EXEC sp_trace_setevent @trace_id, @plan, 5, @on; -- XML Plan / Line + EXEC sp_trace_setevent @trace_id, @plan, 34, @on; -- XML Plan / ObjectName + EXEC sp_trace_setevent @trace_id, @plan, 51, @on; -- XML Plan / EventSequence + EXEC sp_trace_setevent @trace_id, @plan, 15, @on; -- XML Plan / EndTime + END + + EXEC sp_trace_setevent @trace_id, 45, 51, @on; -- SP:StmtCompleted / EventSeq + EXEC sp_trace_setevent @trace_id, 41, 51, @on; -- SQL:StmtCompleted / EventSeq + EXEC sp_trace_setevent @trace_id,166, 51, @on; -- SQL:Stmtcompile / EventSeq + EXEC sp_trace_setevent @trace_id,166, 21, @on; -- SQL:Stmtcompile / Subclass + EXEC sp_trace_setevent @trace_id,166, 1, @on; -- SQL:StmtCompile / TextData + EXEC sp_trace_setevent @trace_id, 45, 1, @on; -- SP:StmtCompleted / TextData + EXEC sp_trace_setevent @trace_id, 41, 1, @on; -- SQL:StmtCompleted / TextData + EXEC sp_trace_setevent @trace_id, 45, 13, @on; -- SP:StmtCompleted / Duration + EXEC sp_trace_setevent @trace_id, 41, 13, @on; -- SQL:StmtCompleted / Duration + EXEC sp_trace_setevent @trace_id, 45, 16, @on; -- SP:StmtCompleted / Reads + EXEC sp_trace_setevent @trace_id, 41, 16, @on; -- SQL:StmtCompleted / Reads + EXEC sp_trace_setevent @trace_id, 45, 17, @on; -- SP:StmtCompleted / Writes + EXEC sp_trace_setevent @trace_id, 41, 17, @on; -- SQL:StmtCompleted / Writes + EXEC sp_trace_setevent @trace_id, 45, 18, @on; -- SP:StmtCompleted / cpu + EXEC sp_trace_setevent @trace_id, 41, 18, @on; -- SQL:StmtCompleted / cpu + EXEC sp_trace_setevent @trace_id, 45, 5, @on; -- SP:StmtCompleted / Line + EXEC sp_trace_setevent @trace_id, 41, 5, @on; -- SQL:StmtCompleted / Line + EXEC sp_trace_setevent @trace_id, 45, 15, @on; -- SP:StmtCompleted / EndTime + EXEC sp_trace_setevent @trace_id, 41, 15, @on; -- SQL:StmtCompleted / EndTime + EXEC sp_trace_setevent @trace_id, 45, 34, @on; -- SP:StmtCompleted / ObjectName + EXEC sp_trace_setevent @trace_id, 45, 29, @on; -- SP:StmtCompleted / NestLevel + + EXEC sp_trace_setfilter @trace_id, 12, 0, 0, @spid; -- spid = @spid + EXEC sp_trace_setfilter @trace_id, 13, 0, 4, @minimum_duration; -- duration >= @minimum_duration + EXEC sp_trace_setfilter @trace_id, 16, 0, 4, @minimum_reads; -- reads >= @minimum_reads + EXEC sp_trace_setfilter @trace_id, 18, 0, 4, @minimum_cpu; -- cpu >= @minimum_cpu + + -- collect wait stats via extended events + IF @show_waits=1 BEGIN + SET @event_sql = replace(' + IF EXISTS (SELECT * FROM sys.server_event_sessions WHERE name = ''***'') + DROP EVENT SESSION *** ON SERVER; + + CREATE EVENT SESSION *** ON SERVER + ADD EVENT sqlos.wait_info + (ACTION (package0.collect_system_time) + WHERE sqlserver.session_id=' + CAST(@spid as varchar) + + ' AND opcode=1), + ADD EVENT sqlos.wait_info_external + (ACTION (package0.collect_system_time) + WHERE sqlserver.session_id=' + CAST(@spid as varchar) + + ' AND opcode=1) + ADD TARGET package0.asynchronous_file_target + (SET FILENAME = N' + QUOTENAME(@file_path + '.xel', '''') +', + METADATAFILE = N' + QUOTENAME(@file_path + '.xem', '''') +') + WITH (max_dispatch_latency = 1 seconds); + + ALTER EVENT SESSION *** ON SERVER STATE = START;', '***', @eventsessname); + EXEC(@event_sql); + END + + IF @rollback=1 + BEGIN TRAN; + + -- Run the batch, considering that it may fail. + BEGIN TRY + EXEC sp_trace_setstatus @trace_id, 1; + EXEC (@batch); + EXEC sp_trace_setstatus @trace_id, 0; + END TRY + BEGIN CATCH + DECLARE @msg nvarchar(2048); + SELECT @msg = 'Batch failed with: ' + error_message(); + RAISERROR(@msg, 16, 1) WITH NOWAIT; + EXEC sp_trace_setstatus @trace_id, 0; + END CATCH + + IF @@trancount > 0 + ROLLBACK; + + IF @show_waits = 1 + BEGIN + EXEC('ALTER EVENT SESSION ' + @eventsessname + ' ON SERVER STATE = STOP;'); + EXEC('DROP EVENT SESSION ' + @eventsessname + ' ON SERVER;'); + END + + -- Stop and delete ttace and event sessions. + EXEC sp_trace_setstatus @trace_id, 2; + +do_analysis: + RAISERROR('Batch completed. Analysis started', 0, 1) WITH NOWAIT; + + -- load trace + INSERT #Results (timestamp, event_class, sub_class, text_data, + routine_name, line_number, nesting, + duration, reads, cpu, writes, sequence) + SELECT IsNull(EndTime, ''), + CASE EventClass WHEN 45 THEN 41 WHEN 122 THEN 146 ELSE EventClass END, + EventSubClass, + coalesce(TextData, ''), + CASE WHEN ObjectName IS NOT NULL THEN ObjectName + WHEN TextData LIKE N'SELECT StatMan%' THEN '-- AutoStats' + ELSE 'Dynamic SQL' + END, + coalesce(LineNumber, 0) AS LineNumber, COALESCE(NestLevel - CASE @snooping + WHEN 1 THEN 0 ELSE 2 + END, 0), + Duration, Reads, cpu, Writes, EventSequence + FROM fn_trace_gettable ( @file_path + '.trc' , default ) + WHERE EventClass < 255 + AND (@plans > '' OR EventClass NOT IN (122, 146)); + + -- sequence compiles. + UPDATE SP SET + compile_count = 1, + sub_class = RC.sub_class + FROM #Results RC + CROSS APPLY( + SELECT TOP 1 * + FROM #Results R + WHERE R.event_class = 41 + AND R.text_data = RC.text_data + AND R.sequence > RC.sequence + ORDER BY R.sequence + ) SP + WHERE RC.event_class = 166; + + -- sequence query plans, but only if reads exceeds @plan_reads, or there is + -- recompile. + IF @plans > '' + BEGIN + BEGIN TRY + UPDATE R SET + xplan = CASE WHEN R.reads >= @plan_reads + THEN convert(xml, S.text_data) + END, + xplan_sequence = S.sequence + FROM #Results R + CROSS APPLY ( + SELECT TOP 1 S.text_data, S.sequence, S.event_class + FROM #Results S + WHERE S.sequence < R.sequence + AND S.line_number = R.line_number + AND S.routine_name = R.routine_name + AND S.event_class = 146 + ORDER BY S.sequence DESC + ) AS S + WHERE (R.reads >= @plan_reads OR R.compile_count = 1) + AND R.event_class = 41 + OPTION (RECOMPILE); + END TRY + -- Not plans convert to xml, so we have a fallback where we run a cursor. + BEGIN CATCH + + DECLARE @sequence bigint + DECLARE plancur CURSOR STATIC LOCAL FOR + SELECT sequence + FROM #Results + WHERE (reads >= @plan_reads OR compile_count = 1) + AND event_class = 41; + + OPEN plancur + + WHILE 1 = 1 + BEGIN + FETCH plancur INTO @sequence + IF @@fetch_status <> 0 + BREAK + + BEGIN TRY + UPDATE R SET + xplan = CASE WHEN R.reads >= @plan_reads + THEN convert(xml, S.text_data) + END, + xplan_sequence = S.sequence + FROM #Results R + CROSS APPLY ( + SELECT TOP 1 S.text_data, S.sequence + FROM #Results S + WHERE S.sequence < R.sequence + AND S.line_number = R.line_number + AND S.routine_name = R.routine_name + AND S.event_class = 146 + ORDER BY S.sequence DESC + ) AS S + WHERE R.sequence = @sequence + AND R.event_class = 41; + END TRY + BEGIN CATCH + END CATCH + END + + DEALLOCATE plancur + END CATCH; + + -- Get compile statistics + WITH XMLNAMESPACES + (DEFAULT 'http://schemas.microsoft.com/sqlserver/2004/07/showplan') + , X AS ( + SELECT sequence, + convert(xml, text_data) AS xplan + FROM #Results + WHERE event_class = 146 + ) + UPDATE R + SET compile_cpu = xp.c.value('@CompileCPU','int'), + compile_duration = xp.c.value('@CompileTime','int') + FROM #Results R + JOIN X ON R.xplan_sequence = X.sequence + CROSS APPLY X.xplan.nodes('/ShowPlanXML/BatchSequence/Batch/Statements/StmtSimple/QueryPlan') AS xp(c) + WHERE R.compile_count = 1 + AND R.event_class = 41 + OPTION (RECOMPILE); + + IF @group_plans = 1 + BEGIN; + WITH XMLNAMESPACES + (DEFAULT 'http://schemas.microsoft.com/sqlserver/2004/07/showplan') + UPDATE #Results + SET xplan.modify('delete (/ShowPlanXML/BatchSequence/Batch/Statements/StmtSimple/QueryPlan/ParameterList)[1]') + WHERE xplan IS NOT NULL; + END + END + + -- display wait stats + IF @show_waits = 1 BEGIN + SET @time_offset = datediff(Hour, getutcdate(), getdate()); + + -- Index created with dynamic SQL, since syntax is not good on SQL 2005. + EXEC ('CREATE UNIQUE INDEX timestamp_ix ON #Results (event_class, timestamp, sequence) + INCLUDE (nesting) WHERE event_class = 41'); + + -- Save wait ids in a temporary table to avoid the DMV in the big query below.. + INSERT #wait_types(wait_id, wait_type) + SELECT convert(varchar(10), map_key), map_value + FROM sys.dm_xe_map_values + WHERE name = 'wait_types'; + + INSERT #xe_file (record, rowno) + SELECT cast(event_data AS xml), row_number() OVER (ORDER BY (SELECT NULL)) + FROM sys.fn_xe_file_target_read_file ( + @file_path + '*.xel', + @file_path + '*.xem', null, null); + + + WITH extracted_data AS ( + SELECT rowno, + -- We get all data from the value element, even if this is more complex. By avoiding + -- reading the text elements as well, we gain some performance. + d.data.value('@name', 'nvarchar(30)') COLLATE Latin1_General_BIN2 AS what, + d.data.value('(value/text())[1]', 'nvarchar(100)') COLLATE Latin1_General_BIN2 AS value_elem + FROM #xe_file x + CROSS APPLY x.record.nodes('/event/*') d(data) + ) + + INSERT #Waits (id, csum, wait_type, duration, signal_duration, nesting, routine_name, line_number, text_data) + SELECT agg.id, coalesce(SP.csum, 0), agg.wait_type, agg.duration, isnull(agg.signal_duration, 0), + SP.nesting, SP.routine_name, SP.line_number, SP.text_data + FROM ( + SELECT MIN(rowno) id, timestamp, wait_type, Sum(duration) duration, Sum(signal_duration) signal_duration + FROM ( + SELECT rowno, + MIN (CASE what WHEN 'wait_type' THEN wt.wait_type END) wait_type, + MIN (CASE what WHEN 'duration' THEN CAST(value_elem AS bigint) END) duration, + MIN (CASE what WHEN 'signal_duration' THEN CAST(value_elem AS bigint) END) signal_duration, + MIN (CASE what WHEN 'collect_system_time' + THEN dateadd(Hour, @time_offset, CASE @sql_version + -- In SQL 2008 the value element for collect system time is the time + -- in number of ticks since 1601-01-01(!). This calls for some weird + -- math. + WHEN 10 THEN dateadd(ms, cast(value_elem as bigint) /10000 % 1000, + dateadd(ss, + cast(value_elem as bigint) /10000000 - cast(145731 AS bigint) * 86400, + '20000101')) + ELSE value_elem + END) + END) AS timestamp + FROM extracted_data ed + LEFT JOIN #wait_types wt ON wt.wait_id = ed.value_elem + WHERE what in ('wait_type','duration','signal_duration', 'collect_system_time') + GROUP BY rowno + ) partialagg + GROUP BY timestamp, wait_type + ) agg + OUTER APPLY ( + SELECT top 1 R.csum, R.nesting, R.routine_name, R.line_number, R.text_data + FROM #Results R + WHERE R.event_class = 41 + AND R.timestamp >= agg.timestamp + AND R.nesting >= 0 + ORDER BY R.timestamp, R.sequence + ) SP + END; + + -- total measure + SELECT + @total = nullif(max( + CASE lower(@factor) + WHEN 'cpu' THEN cpu + WHEN 'reads' THEN reads + WHEN 'writes' THEN writes + ELSE duration + END), 0), + @compile_duration = sum(compile_duration), + @compile_cpu = sum(compile_cpu), + @compile_count = sum(CASE WHEN event_class=166 THEN 1 ELSE 0 END), + @minnestlevel = min(CASE WHEN event_class IN (41, 45) THEN nesting END) + FROM #Results; + + IF @snooping = 1 BEGIN + SELECT @total = nullif(SUM( + CASE lower(@factor) + WHEN 'cpu' THEN cpu + WHEN 'reads' THEN reads + WHEN 'writes' THEN writes + ELSE duration + END), 0) + FROM #Results + WHERE nesting = @minnestlevel; + + INSERT #Results (timestamp, event_class, text_data, routine_name, + line_number, nesting, duration, sequence) + VALUES (getdate(), 41, 'EXEC (snoop)', 'sp_sqltrace', + 0, -1, @snoop_time*convert(bigint, 1000000), 9223372036854775807); + END; + + UPDATE #Results SET + compile_duration = @compile_duration, + compile_cpu = @compile_cpu, + compile_count = @compile_count + WHERE routine_name = 'sp_sqltrace' + AND nesting = -1; + + -- results + SELECT CASE WHEN nesting = -1 THEN '' + ELSE isnull(cast(nullif(floor((@total/2 + 100.0 * sum(CASE lower(@factor) + WHEN 'cpu' THEN cpu + IsNull(compile_cpu, 0) + WHEN 'reads' THEN reads + WHEN 'writes' THEN writes + ELSE duration + IsNull(compile_duration, 0) + END)) / @total), 0) as varchar) + '%', '') + END AS Factor, + CASE WHEN text_data LIKE 'EXEC%' THEN '\---- ' + text_data + WHEN text_data LIKE 'SELECT StatMan%' THEN 'Statistics -- ' + text_data + ELSE text_data + END AS Text, + CASE WHEN nesting = -1 OR COUNT(*)=1 THEN '' + ELSE cast(count(*) as varchar) END AS Calls, + CASE WHEN nesting = -1 THEN '' + ELSE cast(nesting as varchar) END AS Nesting, + CASE WHEN nesting = -1 THEN '' + ELSE routine_name + ' - ' + + cast(line_number as varchar) + END [Object - Line], + cast(sum(duration) / 1000.0 as numeric(18,2)) AS Duration, + isnull(cast(nullif(sum(cpu),0) as varchar),'') AS Cpu, + isnull(cast(nullif(sum(reads),0) as varchar),'') AS Reads, + isnull(cast(nullif(sum(writes),0) as varchar),'') AS Writes, + isnull(CASE WHEN @show_waits = 0 THEN NULL + WHEN nesting = -1 THEN STUFF(( + SELECT '| '+ CASE WHEN Sum(signal_duration) > 0 + THEN '[' + Cast(Sum(signal_duration) as varchar) + 'sig]' + ELSE '' + END + + cast(sum(duration) as varchar) + 'ms=' + + W.wait_type + '(' + cast(count(*) as varchar) + + ')' AS [data()] + FROM #Waits W + GROUP BY W.wait_type + ORDER BY Sum(duration) DESC, Count(*) DESC + FOR XML PATH('')), 1, 2, '') + ELSE STUFF((SELECT '| ' + CASE WHEN Sum(signal_duration) > 0 + THEN '[' + Cast(Sum(signal_duration) as varchar) + 'sig]' + ELSE '' + END + + cast(sum(duration) as varchar) + 'ms=' + + W.wait_type + '(' + cast(count(*) as varchar) + ')' AS [data()] + FROM #Waits W + WHERE W.csum = R.csum + AND W.nesting = R.nesting + AND W.routine_name = R.routine_name + AND W.line_number = R.line_number + AND W.text_data = R.text_data + GROUP BY W.wait_type + ORDER BY Sum(duration) DESC, Count(*) DESC + FOR XML PATH('') + ), 1, 2, '') END, '') AS Waits, + isnull(cast(nullif(sum(compile_count), 0) as varchar),'') AS Compiles, + CASE MIN(sub_class) + WHEN 1 THEN 'Local' WHEN 2 THEN 'Stats' WHEN 3 THEN 'DNR' + WHEN 4 THEN 'SET' WHEN 5 THEN 'Temp' WHEN 6 THEN 'Remote' + WHEN 7 THEN 'Browse' WHEN 8 THEN 'QN' WHEN 9 THEN 'MPI' + WHEN 10 THEN 'Cursor' WHEN 11 THEN 'Manual' + ELSE COALESCE(cast(MIN (sub_class) as varchar), '') + END + + CASE WHEN min(sub_class) <> max(sub_class) THEN ' +more' ELSE '' END AS Reason, + CASE WHEN sum(compile_count) > 0 + THEN isnull(cast(sum(compile_duration) as varchar), '?') + ELSE '' + END AS Comp_Duration, + CASE WHEN sum(compile_count) > 0 + THEN isnull(cast(sum(compile_cpu) as varchar), '?') + ELSE '' + END AS Comp_Cpu, + cast(cast(xplan as nvarchar(max)) as xml) XPlan + FROM #Results R + WHERE event_class = 41 + GROUP BY csum, nesting, routine_name, line_number, text_data, + Cast(xplan as nvarchar(max)) + ORDER BY min(CASE WHEN @order='' THEN sequence END), + sum(CASE lower(@order) + WHEN 'cpu' THEN cpu + IsNull(compile_cpu, 0) + WHEN 'reads' THEN reads + WHEN 'writes' THEN writes + ELSE duration + IsNull(compile_duration, 0) + END) DESC + OPTION (RECOMPILE) +END +GO diff --git a/Stored_Procedure/dbo.sqlg_ParseDiskskpXml.sql b/Stored_Procedure/dbo.sqlg_ParseDiskskpXml.sql new file mode 100644 index 00000000..af7c2336 --- /dev/null +++ b/Stored_Procedure/dbo.sqlg_ParseDiskskpXml.sql @@ -0,0 +1,366 @@ +USE master; +GO +IF OBJECT_ID('dbo.sqlg_ParseDiskskpXml') IS NULL EXECUTE sp_executesql N'CREATE PROCEDURE dbo.sqlg_ParseDiskskpXml AS RETURN'; +GO +SET ANSI_NULLS ON; +GO +SET QUOTED_IDENTIFIER ON; +GO +-- ============================================= +-- Author: Raul Gonzalez @SQLDoubleG +-- Create date: 26/02/2017 +-- Description: Process XML output file of diskspd.exe +-- +-- Parameters: +-- - @filePath -> Full path of the file that contains the XML output of diskspd.exe +-- - @simplified -> will return just one row with general info and IO totals, including IOps, throughput and latency for Reads and Writes. +-- +-- Log: +-- 26/02/2017 RAG - Created +-- +-- Copyright: (C) 2017 Raul Gonzalez (@SQLDoubleG http://www.sqldoubleg.com) +-- +-- THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF +-- ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED +-- TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A +-- PARTICULAR PURPOSE. +-- +-- THE AUTHOR SHALL NOT BE LIABLE TO YOU OR ANY THIRD PARTY FOR ANY INDIRECT, +-- SPECIAL, INCIDENTAL, PUNITIVE, COVER, OR CONSEQUENTIAL DAMAGES OF ANY KIND +-- +-- YOU MAY ALTER THIS CODE FOR YOUR OWN *NON-COMMERCIAL* PURPOSES. YOU MAY +-- REPUBLISH ALTERED CODE AS LONG AS YOU INCLUDE THIS COPYRIGHT AND GIVE DUE CREDIT. +-- +-- ============================================= +ALTER PROCEDURE dbo.sqlg_ParseDiskskpXml + @filePath NVARCHAR(512) + , @simplified BIT = 1 + +AS +BEGIN + +SET NOCOUNT ON; + +DECLARE @xml XML; +DECLARE @sql NVARCHAR(1000) = N'SET @xml = (SELECT CONVERT(XML, BulkColumn) FROM OPENROWSET(BULK ''' + @filePath + ''', SINGLE_BLOB) AS x);'; + +EXECUTE sys.sp_executesql @sql, N'@xml XML OUTPUT', @xml = @xml OUTPUT; + +IF OBJECT_ID('tempdb..#SystemInfo') IS NOT NULL DROP TABLE #SystemInfo; +IF OBJECT_ID('tempdb..#RunningParameters') IS NOT NULL DROP TABLE #RunningParameters; +IF OBJECT_ID('tempdb..#RunningValues') IS NOT NULL DROP TABLE #RunningValues; +IF OBJECT_ID('tempdb..#TimeSpan') IS NOT NULL DROP TABLE #TimeSpan; +IF OBJECT_ID('tempdb..#ProcessorUsage') IS NOT NULL DROP TABLE #ProcessorUsage; +--IF OBJECT_ID('tempdb..#AverageLatency') IS NOT NULL DROP TABLE #AverageLatency +IF OBJECT_ID('tempdb..#LatencyPercentiles') IS NOT NULL DROP TABLE #LatencyPercentiles; +IF OBJECT_ID('tempdb..#ResultsPerThread') IS NOT NULL DROP TABLE #ResultsPerThread; + +--=========================================================================================== +-- Info contained in +--=========================================================================================== +SELECT @xml.value('(/Results/System/ComputerName)[1]', 'VARCHAR(128)') AS computerName + , @xml.value('(/Results/System/RunTime)[1]', 'VARCHAR(30)') AS RunTime + , @xml.value('(/Results/System/ProcessorTopology/Group/@ActiveProcessors)[1]', 'TINYINT') AS ActiveProcessors +INTO #SystemInfo; +--=========================================================================================== +-- Info contained in +--=========================================================================================== +SELECT t.c.value('(./TimeSpan/CompletionRoutines)[1]', 'VARCHAR(5)') AS CompletionRoutines + , t.c.value('(./TimeSpan/MeasureLatency)[1]', 'VARCHAR(5)') AS MeasureLatency + , t.c.value('(./TimeSpan/CalculateIopsStdDev)[1]', 'VARCHAR(5)') AS CalculateIopsStdDev + , t.c.value('(./TimeSpan/DisableAffinity)[1]', 'VARCHAR(5)') AS DisableAffinity + , t.c.value('(./TimeSpan/Duration)[1]', 'INT') AS Duration + , t.c.value('(./TimeSpan/Warmup)[1]', 'INT') AS Warmup + , t.c.value('(./TimeSpan/Cooldown)[1]', 'INT') AS Cooldown + , t.c.value('(./TimeSpan/ThreadCount)[1]', 'TINYINT') AS ThreadCount + , t.c.value('(./TimeSpan/IoBucketDuration)[1]', 'INT') AS IoBucketDuration + , t.c.value('(./TimeSpan/RandSeed)[1]', 'INT') AS RandSeed + --, t.c.query('.') AS CompletionRoutines +INTO #RunningParameters +FROM @xml.nodes('/Results/Profile/TimeSpans') AS t(c); +--=========================================================================================== +-- Info contained for each in +--=========================================================================================== +SELECT t2.d.value('(./Path)[1]', 'VARCHAR(512)') AS Path + , t2.d.value('(./BlockSize)[1]', 'VARCHAR(512)') AS BlockSize + , t2.d.value('(./BaseFileOffset)[1]', 'VARCHAR(512)') AS BaseFileOffset + , t2.d.value('(./SequentialScan)[1]', 'VARCHAR(512)') AS SequentialScan + , t2.d.value('(./RandomAccess)[1]', 'VARCHAR(512)') AS RandomAccess + , t2.d.value('(./TemporaryFile)[1]', 'VARCHAR(512)') AS TemporaryFile + , t2.d.value('(./UseLargePages)[1]', 'VARCHAR(512)') AS UseLargePages + , t2.d.value('(./DisableOSCache)[1]', 'VARCHAR(512)') AS DisableOSCache + , t2.d.value('(./WriteThrough)[1]', 'VARCHAR(512)') AS WriteThrough + --, d.value('(./WriteBufferContent>' + --, d.value('(./Pattern>sequential' + --, d.value('(.//WriteBufferContent>' + , t2.d.value('(./ParallelAsyncIO)[1]', 'VARCHAR(512)') AS ParallelAsyncIO + , t2.d.value('(./StrideSize)[1]', 'VARCHAR(512)') AS StrideSize + , t2.d.value('(./InterlockedSequential)[1]', 'VARCHAR(512)') AS InterlockedSequential + , t2.d.value('(./ThreadStride)[1]', 'VARCHAR(512)') AS ThreadStride + , t2.d.value('(./MaxFileSize)[1]', 'VARCHAR(512)') AS MaxFileSize + , t2.d.value('(./RequestCount)[1]', 'VARCHAR(512)') AS RequestCount + , t2.d.value('(./WriteRatio)[1]', 'VARCHAR(512)') AS WriteRatio + , t2.d.value('(./Throughput)[1]', 'VARCHAR(512)') AS Throughput + , t2.d.value('(./ThreadsPerFile)[1]', 'VARCHAR(512)') AS ThreadsPerFile + , t2.d.value('(./IOPriority)[1]', 'VARCHAR(512)') AS IOPriority +INTO #RunningValues +FROM @xml.nodes('/Results/Profile/TimeSpans/TimeSpan/Targets/Target') AS t2(d); +--=========================================================================================== +-- Info contained in +--=========================================================================================== +SELECT t.c.value('(./TestTimeSeconds)[1]', 'DECIMAL(10,2)') AS TestTimeSeconds + , t.c.value('(./ThreadCount)[1]', 'SMALLINT') AS ThreadCount + , t.c.value('(./ProcCount)[1]', 'SMALLINT') AS ProcCount +INTO #TimeSpan +FROM @xml.nodes('/Results/TimeSpan') AS t(c); +--=========================================================================================== +-- Info contained for each in +--=========================================================================================== +SELECT t.c.value('(./Id)[1]', 'TINYINT') AS Id + , t.c.value('(./UsagePercent)[1]', 'DECIMAL(5,2)') AS UsagePercent + , t.c.value('(./UserPercent)[1]', 'DECIMAL(5,2)') AS UserPercent + , t.c.value('(./KernelPercent)[1]', 'DECIMAL(5,2)') AS KernelPercent + , t.c.value('(./IdlePercent)[1]', 'DECIMAL(5,2)') AS IdlePercent +INTO #ProcessorUsage +FROM @xml.nodes('/Results/TimeSpan/CpuUtilization/CPU') AS t(c); +--=========================================================================================== +-- Info contained in , this can be calculated from the details too, so skip it +--=========================================================================================== +--SELECT t.c.value('(./AverageReadMilliseconds)[1]', 'DECIMAL(10,2)') AS AverageReadMilliseconds +-- , t.c.value('(./ReadLatencyStdev)[1]', 'DECIMAL(10,2)') AS ReadLatencyStdev +-- , t.c.value('(./AverageWriteMilliseconds)[1]', 'DECIMAL(10,2)') AS AverageWriteMilliseconds +-- , t.c.value('(./WriteLatencyStdev)[1]', 'DECIMAL(10,2)') AS WriteLatencyStdev +-- , t.c.value('(./AverageTotalMilliseconds)[1]', 'DECIMAL(10,2)') AS AverageTotalMilliseconds +-- , t.c.value('(./LatencyStdev)[1]', 'DECIMAL(10,2)') AS LatencyStdev +--INTO #AverageLatency +--FROM @xml.nodes('/Results/TimeSpan/Latency') AS t(c) +--=========================================================================================== +-- Info contained for each in +--=========================================================================================== +SELECT t.c.value('(./Percentile)[1]', 'DECIMAL(15,7)') AS Percentile + , t.c.value('(./ReadMilliseconds)[1]', 'DECIMAL(10,4)') AS ReadMilliseconds + , t.c.value('(./WriteMilliseconds)[1]', 'DECIMAL(10,4)') AS WriteMilliseconds + , t.c.value('(./TotalMilliseconds)[1]', 'DECIMAL(10,4)') AS TotalMilliseconds +INTO #LatencyPercentiles +FROM @xml.nodes('/Results/TimeSpan/Latency/Bucket') AS t(c); +--=========================================================================================== +-- Info contained for each in +--=========================================================================================== +SELECT t.c.value('(./Id)[1]', 'INT') AS ThreadId + , t.c.value('(./Target/Path)[1]', 'VARCHAR(512)') AS Path + , t.c.value('(./Target/BytesCount)[1]', 'BIGINT') AS BytesCount + , t.c.value('(./Target/FileSize)[1]', 'BIGINT') AS FileSize + , t.c.value('(./Target/IOCount)[1]', 'BIGINT') AS IOCount + , t.c.value('(./Target/ReadBytes)[1]', 'BIGINT') AS ReadBytes + , t.c.value('(./Target/ReadCount)[1]', 'BIGINT') AS ReadCount + , t.c.value('(./Target/WriteBytes)[1]', 'BIGINT') AS WriteBytes + , t.c.value('(./Target/WriteCount)[1]', 'BIGINT') AS WriteCount + , t.c.value('(./Target/AverageReadLatencyMilliseconds)[1]', 'DECIMAL(10,3)') AS AverageReadLatencyMilliseconds + , t.c.value('(./Target/ReadLatencyStdev)[1]', 'DECIMAL(10,3)') AS ReadLatencyStdev + , t.c.value('(./Target/AverageWriteLatencyMilliseconds)[1]', 'DECIMAL(10,3)') AS AverageWriteLatencyMilliseconds + , t.c.value('(./Target/WriteLatencyStdev)[1]', 'DECIMAL(10,3)') AS WriteLatencyStdev + , t.c.value('(./Target/AverageLatencyMilliseconds)[1]', 'DECIMAL(10,3)') AS AverageLatencyMilliseconds + , t.c.value('(./Target/LatencyStdev)[1]', 'DECIMAL(10,3)') AS LatencyStdev +INTO #ResultsPerThread +FROM @xml.nodes('/Results/TimeSpan/Thread') AS t(c); + + +--=========================================================================================== +-- Return useful Information +--=========================================================================================== +IF @simplified = 1 BEGIN + + SELECT si.computerName + , si.RunTime + , ts.TestTimeSeconds + , ts.ThreadCount + , COUNT(DISTINCT th.Path) AS FileCount + , STUFF(tf.path, 1, 2, '') AS TargetFiles + , rv.ThreadsPerFile + , rv.BlockSize + --th.FileSize / 1024 / 1024 AS [FileSize MB], + , CONVERT(VARCHAR(3), ( 100 - rv.WriteRatio )) + '/' + CONVERT(VARCHAR(3), rv.WriteRatio) AS [Read/Write Ratio] + -- Total Read + Writes + , SUM(th.BytesCount) AS [Total bytes] + , SUM(th.IOCount) AS [Total I/Os] + , CEILING(SUM(th.IOCount) / ts.TestTimeSeconds) AS [Total IOps] + , CONVERT(DECIMAL(15, 2), ROUND(SUM(th.BytesCount) / 1024. / 1024 / ts.TestTimeSeconds, 2)) AS [Total MB/s] + -- Reads + , SUM(th.ReadBytes) AS [Read bytes] + , SUM(th.ReadCount) AS [Read I/Os] + , CEILING(SUM(th.ReadCount) / ts.TestTimeSeconds) AS [Read IOps] + , CONVERT(DECIMAL(15, 2), ROUND(SUM(th.ReadBytes) / 1024. / 1024 / ts.TestTimeSeconds, 2)) AS [Read MB/s] + -- Writes + , SUM(th.WriteBytes) AS [Write bytes] + , SUM(th.WriteCount) AS [Write I/Os] + , CEILING(SUM(th.WriteCount) / ts.TestTimeSeconds) AS [Write IOps] + , CONVERT(DECIMAL(15, 2), ROUND(SUM(th.WriteBytes) / 1024. / 1024 / ts.TestTimeSeconds, 2)) AS [Write MB/s] + -- Latency Total + , CONVERT(DECIMAL(15, 2), ROUND(AVG(ISNULL(th.AverageLatencyMilliseconds, 0)), 2)) AS [AverageLatencyMilliseconds] + , CONVERT(DECIMAL(15, 2), ROUND(AVG(ISNULL(th.LatencyStdev, 0)), 2)) AS [LatencyStdev] + -- Latency Read + , CONVERT(DECIMAL(15, 2), ROUND(AVG(ISNULL(th.AverageReadLatencyMilliseconds, 0)), 2)) AS [AverageReadLatencyMilliseconds] + , CONVERT(DECIMAL(15, 2), ROUND(AVG(ISNULL(th.ReadLatencyStdev, 0)), 2)) AS [ReadLatencyStdev] + -- Latency Write + , CONVERT(DECIMAL(15, 2), ROUND(AVG(ISNULL(th.AverageWriteLatencyMilliseconds, 0)), 2)) AS [AverageWriteLatencyMilliseconds] + , CONVERT(DECIMAL(15, 2), ROUND(AVG(ISNULL(th.WriteLatencyStdev, 0)), 2)) AS [WriteLatencyStdev] + FROM #ResultsPerThread AS th + CROSS JOIN #TimeSpan AS ts + CROSS JOIN ( SELECT TOP 1 * FROM #RunningValues) AS rv + CROSS JOIN #SystemInfo AS si + CROSS JOIN ( SELECT DISTINCT ', ' + Path + ' (' + CONVERT(VARCHAR(10), FileSize / 1024/ 1024) + 'MB)' AS [text()] + FROM #ResultsPerThread FOR XML PATH('')) AS tf ( [path] ) + GROUP BY si.computerName + , si.RunTime + , ts.TestTimeSeconds + , ts.ThreadCount + , rv.ThreadsPerFile + , rv.BlockSize + , rv.WriteRatio + , th.FileSize + , tf.[path]; +END; ELSE BEGIN + --=========================================================================================== + -- Input parameters + --=========================================================================================== + SELECT si.computerName AS [computer name] + , si.RunTime AS [run time] + , p.Duration AS [duration] + , p.Warmup AS [warm up time] + , p.Cooldown AS [cood down time] + , p.RandSeed AS [random seed] + , si.ActiveProcessors + FROM #RunningParameters AS p + CROSS JOIN #SystemInfo AS si; + + --=========================================================================================== + -- Time span + --=========================================================================================== + SELECT rv.Path + , rv.BlockSize + --rv.WriteRatio , + , CONVERT(VARCHAR(3), ( 100 - rv.WriteRatio )) + '/' + CONVERT(VARCHAR(3), rv.WriteRatio) AS [Read/Write Ratio] + , rv.ThreadsPerFile + , rv.IOPriority + , rv.BaseFileOffset + , rv.SequentialScan + , rv.RandomAccess + , rv.TemporaryFile + , rv.UseLargePages + , rv.DisableOSCache + , rv.WriteThrough + , rv.ParallelAsyncIO + , rv.StrideSize + , rv.InterlockedSequential + , rv.ThreadStride + , rv.MaxFileSize + , rv.RequestCount + , rv.Throughput + FROM #RunningValues AS rv; + --=========================================================================================== + -- Processor + --=========================================================================================== + SELECT Id AS CPU + , UsagePercent + , UserPercent + , KernelPercent + , IdlePercent + FROM #ProcessorUsage + --=========================================================================================== + -- Latency + --=========================================================================================== + ;WITH cte AS( + SELECT ISNULL(CONVERT(VARCHAR(5), th.ThreadId), 'Total') AS ThreadId + , th.Path + ' (' + CONVERT(VARCHAR(10), th.FileSize / 1024 / 1024) + + 'MB)' AS [file] + -- Total Read + Writes + , ( th.BytesCount ) AS [Total bytes] + , ( th.IOCount ) AS [Total I/Os] + , CEILING(( th.IOCount ) / ts.TestTimeSeconds) AS [Total IOps] + , CONVERT(DECIMAL(15, 2), ROUND(( th.BytesCount ) / 1024. / 1024 / ts.TestTimeSeconds, 2)) AS [Total MB/s] + -- Reads + , ( th.ReadBytes ) AS [Read bytes] + , ( th.ReadCount ) AS [Read I/Os] + , CEILING(( th.ReadCount ) / ts.TestTimeSeconds) AS [Read IOps] + , CONVERT(DECIMAL(15, 2), ROUND(( th.ReadBytes ) / 1024. / 1024 / ts.TestTimeSeconds, 2)) AS [Read MB/s] + -- Writes + , ( th.WriteBytes ) AS [Write bytes] + , ( th.WriteCount ) AS [Write I/Os] + , CEILING(( th.WriteCount ) / ts.TestTimeSeconds) AS [Write IOps] + , CONVERT(DECIMAL(15, 2), ROUND(( th.WriteBytes ) / 1024. / 1024 / ts.TestTimeSeconds, 2)) AS [Write MB/s] + -- Latency Total + , CONVERT(DECIMAL(15, 2), ROUND(( ISNULL(th.AverageLatencyMilliseconds, 0) ), 2)) AS [AverageLatencyMilliseconds] + , CONVERT(DECIMAL(15, 2), ROUND(( ISNULL(th.LatencyStdev, 0) ), 2)) AS [LatencyStdev] + -- Latency Read + , CONVERT(DECIMAL(15, 2), ROUND(( ISNULL(th.AverageReadLatencyMilliseconds, 0) ), 2)) AS [AverageReadLatencyMilliseconds] + , CONVERT(DECIMAL(15, 2), ROUND(( ISNULL(th.ReadLatencyStdev, 0) ), 2)) AS [ReadLatencyStdev] + -- Latency Write + , CONVERT(DECIMAL(15, 2), ROUND(( ISNULL(th.AverageWriteLatencyMilliseconds, 0) ), 2)) AS [AverageWriteLatencyMilliseconds] + , CONVERT(DECIMAL(15, 2), ROUND(( ISNULL(th.WriteLatencyStdev, 0) ), 2)) AS [WriteLatencyStdev] + FROM #ResultsPerThread AS th + CROSS JOIN #TimeSpan AS ts + CROSS JOIN (SELECT TOP 1 * FROM #RunningValues) AS rv + CROSS JOIN #SystemInfo AS si + UNION + SELECT + 'Total' + , '-' + -- Total Read + Writes + , SUM(th.BytesCount) AS [Total bytes] + , SUM(th.IOCount) AS [Total I/Os] + , CEILING(SUM(th.IOCount) / ts.TestTimeSeconds) AS [Total IOps] + , CONVERT(DECIMAL(15, 2), ROUND(SUM(th.BytesCount) / 1024. / 1024 / ts.TestTimeSeconds, 2)) AS [Total MB/s] + -- Reads + , SUM(th.ReadBytes) AS [Read bytes] + , SUM(th.ReadCount) AS [Read I/Os] + , CEILING(SUM(th.ReadCount) / ts.TestTimeSeconds) AS [Read IOps] + , CONVERT(DECIMAL(15, 2), ROUND(SUM(th.ReadBytes) / 1024. / 1024 / ts.TestTimeSeconds, 2)) AS [Read MB/s] + -- Writes + , SUM(th.WriteBytes) AS [Write bytes] + , SUM(th.WriteCount) AS [Write I/Os] + , CEILING(SUM(th.WriteCount) / ts.TestTimeSeconds) AS [Write IOps] + , CONVERT(DECIMAL(15, 2), ROUND(SUM(th.WriteBytes) / 1024. / 1024 / ts.TestTimeSeconds, 2)) AS [Write MB/s] + -- Latency Total + , CONVERT(DECIMAL(15, 2), ROUND(AVG(ISNULL(th.AverageLatencyMilliseconds, 0)), 2)) AS [AverageLatencyMilliseconds] + , CONVERT(DECIMAL(15, 2), ROUND(AVG(ISNULL(th.LatencyStdev, 0)), 2)) AS [LatencyStdev] + -- Latency Read + , CONVERT(DECIMAL(15, 2), ROUND(AVG(ISNULL(th.AverageReadLatencyMilliseconds, 0)), 2)) AS [AverageReadLatencyMilliseconds] + , CONVERT(DECIMAL(15, 2), ROUND(AVG(ISNULL(th.ReadLatencyStdev, 0)), 2)) AS [ReadLatencyStdev] + -- Latency Write + , CONVERT(DECIMAL(15, 2), ROUND(AVG(ISNULL(th.AverageWriteLatencyMilliseconds, 0)), 2)) AS [AverageWriteLatencyMilliseconds] + , CONVERT(DECIMAL(15, 2), ROUND(AVG(ISNULL(th.WriteLatencyStdev, 0)), 2)) AS [WriteLatencyStdev] + FROM #ResultsPerThread AS th + CROSS JOIN #TimeSpan AS ts + CROSS JOIN (SELECT TOP 1 * FROM #RunningValues) AS rv + CROSS JOIN #SystemInfo AS si + GROUP BY ts.TestTimeSeconds + ) + + SELECT * FROM cte + ORDER BY CASE WHEN ISNUMERIC(ThreadId) = 0 THEN 999 ELSE CONVERT(INT, ThreadId) END ASC; + --=========================================================================================== + -- Percentiles + --=========================================================================================== + SELECT CASE WHEN Percentile = 0 THEN 'min' + WHEN Percentile = 100 THEN 'max' + WHEN Percentile = 100 THEN 'max' + WHEN Percentile % 1 = .9 THEN '3-nines' + WHEN Percentile % 1 = .99 THEN '4-nines' + WHEN Percentile % 1 = .999 THEN '5-nines' + WHEN Percentile % 1 = .9999 THEN '6-nines' + WHEN Percentile % 1 = .99999 THEN '7-nines' + WHEN Percentile % 1 = .999999 THEN '8-nines' + WHEN Percentile % 1 = .9999999 THEN '9-nines' + ELSE CONVERT(VARCHAR(10), CONVERT(INT, Percentile)) + 'th' + END AS [%-ile] + , ISNULL(CONVERT(VARCHAR(10), ReadMilliseconds), 'N/A') AS [Read (ms)] + , ISNULL(CONVERT(VARCHAR(10), WriteMilliseconds), 'N/A') AS [Write (ms)] + , TotalMilliseconds AS [Total (ms)] + FROM #LatencyPercentiles + WHERE Percentile IN (0, 25, 50, 75, 90, 95) + OR Percentile >= 99; +END; + +END; + +GO \ No newline at end of file diff --git a/Stored_Procedure/dbo.udp_IntegerListfromRanges.sql b/Stored_Procedure/dbo.udp_IntegerListfromRanges.sql new file mode 100644 index 00000000..449d6328 --- /dev/null +++ b/Stored_Procedure/dbo.udp_IntegerListfromRanges.sql @@ -0,0 +1,83 @@ +/****** Object: StoredProcedure [dbo].[IntegerListfromRanges] Script Date: 01/12/2016 10:45:21 ******/ + +IF EXISTS (SELECT * FROM INFORMATION_SCHEMA.ROUTINES + WHERE ROUTINES.ROUTINE_TYPE='procedure' + AND ROUTINES.ROUTINE_SCHEMA='dbo' + AND ROUTINES.ROUTINE_NAME = 'IntegerListfromRanges') + DROP PROCEDURE IntegerListfromRanges +go +CREATE procedure [dbo].[IntegerListfromRanges] +/** +summary: > + This Procedure takes a list of integers with ranges in them and turns it into + a list of integers. Effectively, it removes the ranges by turning them into all + the integers in the range. This is a demonstration of a working method because + I create a number table on the fly with negative integers (these make things harder) + and normally you'd just want to have the table of numbers that you would then + use for whatever relational task you were engaged with +Author: Phil Factor +Revision: 1.0 +date: 19 Nov 2016 +example: > + DECLARE @list VARCHAR(MAX) + EXECUTE dbo.IntegerListFromRanges '-12--3,4,6,7',@list OUTPUT + SELECT @list +returns: > + The list as an ascll string representing a list of integers. +**/ +@Rangelist VARCHAR(MAX), --eg. 1-4,6,8-11,13,21-23,25,27-28,30 + --which would become 1,2,3,4,6,8,9,10,11,13,21,22,23,25,27,28,30 +@list VARCHAR(MAX) output +AS + +BEGIN +--declare some variables +DECLARE @inClause VARCHAR(MAX), @BetweenClause VARCHAR(MAX), + @XMLVersionOfList XML,@NumberTableSQL NVARCHAR(MAX) +DECLARE @MyNumbers TABLE + ( + MyRange VARCHAR(10) +); +--here we create the numbers table with a precautionary test +IF NOT EXISTS( + SELECT TABLES.TABLE_NAME FROM tempdb.INFORMATION_SCHEMA.TABLES + WHERE TABLES.TABLE_NAME LIKE '#NumbersForRanges%') + BEGIN + SELECT TOP 10000 IDENTITY(int,-5000,1) AS Number + INTO #NumbersForRanges + FROM sys.objects s1 + CROSS JOIN sys.objects s2; + ALTER TABLE #NumbersForRanges ADD CONSTRAINT + PK_NumbersForRanges PRIMARY KEY CLUSTERED (Number); + end +--we convert the list into XML +SELECT @XMLVersionOfList = + '' + REPLACE(@rangelist, ',', '') + ''; +--we now take each component and insert it into a row of a table variable +INSERT INTO @MyNumbers(MyRange) + SELECT x.y.value('.', 'varchar(10)') AS IDs + FROM @XMLVersionOfList.nodes('/list/i/text()') AS x(y); +-- end of section converting list to a table we can work with +SELECT @inClause='', @BetweenClause='' +--we want to make a SELECT statement against a number table +SELECT + @inClause=@inClause +CASE WHEN MyRange like '%[0-9]-%' THEN '' ELSE ',' + MyRange END, + @BetweenClause=@BetweenClause + +CASE WHEN MyRange like '%[0-9]-%' + THEN 'or (number between '+STUFF(MyRange,PATINDEX('%[0-9]-%',[@MyNumbers].MyRange)+1,1,' and ')+') ' + ELSE'' END + FROM @MyNumbers + SELECT @list='' +IF @@RowCount>0 + BEGIN + SELECT @NumberTableSQL='SELECT @OutputList=''''; + SELECT @OutputList=@OutputList+ '',''+ convert(varchar(5),number) from #NumbersForRanges where ' + + CASE WHEN LEN(@inClause)>0 THEN 'number in ('+ STUFF(@inClause,1,1,0)+') 'ELSE '' END+ + CASE WHEN LEN(@BetweenClause)>0 THEN CASE WHEN LEN(@inClause)>0 THEN 'or' ELSE '' END+ + ' ('+ STUFF(@BetweenClause,1,3,'')+')'ELSE '' END; +---now we execute the code against the number table + EXEC sp_ExecuteSQL @NumberTableSQL, N'@OutputList Varchar(max) OUTPUT',@OutputList=@List OUTPUT + SELECT @list=STUFF(@list,1,1,'') + END +end +go \ No newline at end of file diff --git a/Stored_Procedure/dbo.usp_Breadth_First.sql b/Stored_Procedure/dbo.usp_Breadth_First.sql new file mode 100644 index 00000000..cd159f4a --- /dev/null +++ b/Stored_Procedure/dbo.usp_Breadth_First.sql @@ -0,0 +1,96 @@ +IF OBJECT_ID (N'dbo.usp_Breadth_First', 'P') IS NULL + EXECUTE('CREATE PROCEDURE usp_Breadth_First AS SELECT 1'); +GO + +ALTER PROCEDURE dbo.usp_Breadth_First (@StartNode int, @EndNode int = NULL) +AS +/* +http://www.hansolav.net/sql/graphs.html +Runs breadth-first search from a specific node. +@StartNode: If of node to start the search at. +@EndNode: Stop the search when node with this id is found. Specify NULL + to traverse the whole graph. + +CREATE TABLE dbo.Node +( + Id int NOT NULL PRIMARY KEY, + Name varchar(50) NULL +) + +CREATE TABLE dbo.Edge +( + FromNode int NOT NULL REFERENCES dbo.Node (Id), + ToNode int NOT NULL REFERENCES dbo.Node (Id), + [Weight] decimal (10, 3) NULL, + PRIMARY KEY CLUSTERED (FromNode ASC, ToNode ASC) +) +*/ +BEGIN + -- Automatically rollback the transaction if something goes wrong. + SET XACT_ABORT ON + BEGIN TRAN + + -- Increase performance and do not intefere with the results. + SET NOCOUNT ON; + + -- Create a temporary table for storing the discovered nodes as the algorithm runs + CREATE TABLE #Discovered + ( + Id int NOT NULL PRIMARY KEY, -- The Node Id + Predecessor int NULL, -- The node we came from to get to this node. + OrderDiscovered int -- The order in which the nodes were discovered. + ) + + -- Initially, only the start node is discovered. + INSERT INTO #Discovered (Id, Predecessor, OrderDiscovered) + VALUES (@StartNode, NULL, 0) + + -- Add all nodes that we can get to from the current set of nodes, + -- that are not already discovered. Run until no more nodes are discovered. + WHILE @@ROWCOUNT > 0 + BEGIN + -- If we have found the node we were looking for, abort now. + IF @EndNode IS NOT NULL + IF EXISTS (SELECT TOP 1 1 FROM #Discovered WHERE Id = @EndNode) + BREAK + + -- We need to group by ToNode and select one FromNode since multiple + -- edges could lead us to new same node, and we only want to insert it once. + INSERT INTO #Discovered (Id, Predecessor, OrderDiscovered) + SELECT e.ToNode, MIN(e.FromNode), MIN(d.OrderDiscovered) + 1 + FROM #Discovered d JOIN dbo.Edge e ON d.Id = e.FromNode + WHERE e.ToNode NOT IN (SELECT Id From #Discovered) + GROUP BY e.ToNode + END; + + -- Select the results. We use a recursive common table expression to + -- get the full path from the start node to the current node. + WITH BacktraceCTE(Id, Name, OrderDiscovered, Path, NamePath) + AS + ( + -- Anchor/base member of the recursion, this selects the start node. + SELECT n.Id, n.Name, d.OrderDiscovered, CAST(n.Id AS varchar(MAX)), + CAST(n.Name AS varchar(MAX)) + FROM #Discovered d JOIN dbo.Node n ON d.Id = n.Id + WHERE d.Id = @StartNode + + UNION ALL + + -- Recursive member, select all the nodes which have the previous + -- one as their predecessor. Concat the paths together. + SELECT n.Id, n.Name, d.OrderDiscovered, + CAST(cte.Path + ',' + CAST(n.Id as varchar(10)) as varchar(MAX)), + cte.NamePath + ',' + n.Name + FROM #Discovered d JOIN BacktraceCTE cte ON d.Predecessor = cte.Id + JOIN dbo.Node n ON d.Id = n.Id + ) + + SELECT Id, Name, OrderDiscovered, Path, NamePath FROM BacktraceCTE + WHERE Id = @EndNode OR @EndNode IS NULL -- This kind of where clause can potentially produce + ORDER BY OrderDiscovered; -- a bad execution plan, but I use it for simplicity here. + + DROP TABLE #Discovered; + COMMIT TRAN + RETURN 0 +END +GO diff --git a/Stored_Procedure/usp_BulkUpload.sql b/Stored_Procedure/dbo.usp_BulkUpload.sql similarity index 55% rename from Stored_Procedure/usp_BulkUpload.sql rename to Stored_Procedure/dbo.usp_BulkUpload.sql index 06c7b1d7..de91f276 100644 --- a/Stored_Procedure/usp_BulkUpload.sql +++ b/Stored_Procedure/dbo.usp_BulkUpload.sql @@ -1,228 +1,298 @@ -IF OBJECT_ID('dbo.usp_BulkUpload', 'P') IS NULL EXECUTE ('CREATE PROCEDURE dbo.usp_BulkUpload AS SELECT 1'); -GO - - -ALTER PROCEDURE dbo.usp_BulkUpload ( - @path NVARCHAR(900) -- add a slash (\) at the end of a variable @path - , @fileName NVARCHAR(200) = '' - , @fileExtension NVARCHAR(10) = N'txt' - , @databaseName SYSNAME - , @schemaName SYSNAME = N'dbo' - , @tableName SYSNAME - , @useIdentity TINYINT = 1 -- 1 - table with identity and identity column exists in file; 2 - table with identity and identity column not exists in file; 0 - table without identity - , @identityColumnName SYSNAME = '' - , @CODEPAGE NVARCHAR(30) = N'1251' - , @DATAFILETYPE NVARCHAR(30) = N'char' - , @FIELDTERMINATOR NVARCHAR(10) = N'\t' - , @FIRSTROW INTEGER = 1 - , @KEEPNULLS BIT = 0 - , @LASTROW INTEGER = 0 - , @ROWTERMINATOR NVARCHAR(10) = N'\n' - , @TABLOCK BIT = 1 - , @ERRORFILE NVARCHAR(300) = N'' - , @excludeColumns NVARCHAR(MAX) = N'''''' - , @rowOrder NVARCHAR(MAX) = N'' - , @orderColumnName BIT = 1 -- 0 - physical column order; 1 - alphabetical - , @databaseRecoveryMode NVARCHAR(15) = N'' -- FULL; BULK_LOGGED; SIMPLE - , @debug BIT = 0 -- 0 - only print tsql statement; 1 - exec tsql statement -) -AS -/* -Specify Field and Row Terminators (SQL Server): http://msdn.microsoft.com/en-us/library/ms191485.aspx -MSDN BULK INSERT: http://msdn.microsoft.com/ru-ru/library/ms188365.aspx - -BULK INSERT - [ database_name . [ schema_name ] . | schema_name . ] [ table_name | view_name ] - FROM 'data_file' - [ WITH - ( - [ [ , ] BATCHSIZE = batch_size ] - [ [ , ] CHECK_CONSTRAINTS ] - [ [ , ] CODEPAGE = { 'ACP' | 'OEM' | 'RAW' | 'code_page' } ] - [ [ , ] DATAFILETYPE = - { 'char' | 'native'| 'widechar' | 'widenative' } ] - [ [ , ] FIELDTERMINATOR = 'field_terminator' ] - [ [ , ] FIRSTROW = first_row ] - [ [ , ] FIRE_TRIGGERS ] - [ [ , ] FORMATFILE = 'format_file_path' ] - [ [ , ] KEEPIDENTITY ] - [ [ , ] KEEPNULLS ] - [ [ , ] KILOBYTES_PER_BATCH = kilobytes_per_batch ] - [ [ , ] LASTROW = last_row ] - [ [ , ] MAXERRORS = max_errors ] - [ [ , ] ORDER ( { column [ ASC | DESC ] } [ ,...n ] ) ] - [ [ , ] ROWS_PER_BATCH = rows_per_batch ] - [ [ , ] ROWTERMINATOR = 'row_terminator' ] - [ [ , ] TABLOCK ] - [ [ , ] ERRORFILE = 'file_name' ] - )] - --- For table with Identity Column ID with SET IDENTITY_INSERT ON @useIdentity = 1 and KEEPIDENTITY property -EXECUTE [dbo].[usp_BulkUpload] @path = N'd:\', - @databaseName = N'DatabaseName', - @tableName = N'TableName', - @useIdentity = 1, - @debug = 0; - --- For table with Identity Column ID without SET IDENTITY_INSERT ON @useIdentity = 2 -EXECUTE [dbo].[usp_BulkUpload] @path = N'd:\', - @databaseName = N'DatabaseName', - @tableName = N'TableName', - @useIdentity = 2, - @debug = O; --- For table without Identity Column @useIdentity = 0 -EXECUTE [dbo].[usp_BulkUpload] @path = N'd:\', - @databaseName = N'DatabaseName', - @tableName = N'TableName', - @useIdentity = 0, - @debug = 0; -*/ -BEGIN - BEGIN TRY - DECLARE @databaseRecoveryModeCurrent NVARCHAR(15); - DECLARE @tsqlCommand NVARCHAR(MAX) = ''; - DECLARE @ParamDefinitionIndentity NVARCHAR(500) = N'@identityColumnNameIN NVARCHAR(200), @ColumnsOUT VARCHAR(MAX) OUTPUT'; - DECLARE @tableFullName NVARCHAR(600) = CASE WHEN @databaseName <> '' THEN QUOTENAME(@databaseName) + '.' ELSE '' END + QUOTENAME(@schemaName) + '.' + QUOTENAME(@tableName); - DECLARE @#tableName NVARCHAR(600) = QUOTENAME('#' + @tableName); - DECLARE @OBJECT_ID INTEGER = OBJECT_ID(@tableFullName); - DECLARE @Columns NVARCHAR(MAX) = N''; - DECLARE @filePath NVARCHAR(MAX) = @path + CASE WHEN @fileName = '' THEN @tableFullName ELSE @fileName END + '.' + @fileExtension; - DECLARE @CrLf NVARCHAR(10) = CHAR(13); - DECLARE @TROW50000 NVARCHAR(MAX) = N''; - - - IF @debug = 0 SET NOCOUNT ON ELSE PRINT '/******* Start Debug' + @Crlf; - - SET @TROW50000 = N'Table ' + @tableFullName + N' is not exists in database ' + QUOTENAME(@databaseName) + N'!!!'; - IF @OBJECT_ID IS NULL THROW 50000, @TROW50000, 1; - - IF RIGHT(@path, 1) <> '\' THROW 50001, 'Please add a slash (\) at the end of a variable @path!!!', 1; - - IF @debug = 1 PRINT ISNULL(N'@filePath = {' + @filePath + N'}', N'@filePath = Null'); - - IF @ERRORFILE = '' SET @ERRORFILE = @path + @tableFullName + N'_error_' + REPLACE(CONVERT(NCHAR(23), GETDATE(), 126), ':', '_') + N'.txt'; - - IF @databaseRecoveryMode <> '' - BEGIN - SELECT @databaseRecoveryModeCurrent = recovery_model_desc - FROM sys.databases - WHERE name = @databaseName; - IF @debug = 1 PRINT ISNULL('@databaseRecoveryModeCurrent = {' + @databaseRecoveryModeCurrent + '}', '@databaseRecoveryModeCurrent = Null'); - - SET @tsqlCommand = N'ALTER DATABASE __databaseName__ SET RECOVERY __databaseRecoveryMode__ WITH NO_WAIT'; - SET @tsqlCommand = REPLACE(@tsqlCommand, '__databaseName__', @databaseName); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__databaseRecoveryMode__', @databaseRecoveryMode) - - IF @debug = 1 PRINT ISNULL('@tsqlCommand = {' + @Crlf + @tsqlCommand + @Crlf + '}', '@tsqlCommand = {Null}') - - IF @databaseRecoveryMode IN ('FULL', 'BULK_LOGGED', 'SIMPLE') - AND @debug = 0 - AND @databaseRecoveryModeCurrent <> @databaseRecoveryMode - EXECUTE sp_executesql @tsqlCommand; - END - - IF @useIdentity = 2 AND @identityColumnName = '' SET @identityColumnName = @tableName + 'ID'; - IF @debug = 1 PRINT ISNULL('@identityColumnName = {' + @identityColumnName + '}', '@identityColumnName = Null'); - - SET @tsqlCommand = N'USE ' + @databaseName + ';' + @CrLf + - N'SELECT @ColumnsOUT = @ColumnsOUT + QUOTENAME(Name) + '',''' + @CrLf + - N'FROM sys.columns sac ' + @CrLf + - N'WHERE sac.object_id = ' + CAST(@OBJECT_ID AS NVARCHAR) + @CrLf + - N' AND sac.name NOT LIKE ISNULL(@identityColumnNameIN, ''Null'')' + @CrLf + - N' AND QUOTENAME(Name) NOT IN (''' + REPLACE(@excludeColumns, ',', ''',''') + ''')' + @crlf + - CASE WHEN @orderColumnName = 1 THEN N'ORDER BY Name;' ELSE N'ORDER BY column_id;' END - ; - - IF @debug = 1 PRINT ISNULL('@OBJECT_ID = {' + CAST(@OBJECT_ID AS NVARCHAR) + '}', '@OBJECT_ID = Null'); - IF @debug = 1 PRINT ISNULL(N'@tsqlCommand = {' + @CrLf + @tsqlCommand + @CrLf + N'}', N'@tsqlCommand = Null'); - - EXECUTE sp_executesql @tsqlCommand, @ParamDefinitionIndentity, - @identityColumnNameIN = @identityColumnName, - @ColumnsOUT = @Columns OUTPUT SELECT @Columns; - - SET @Columns = CASE WHEN LEN(@Columns) > 0 THEN LEFT(@Columns, LEN(@Columns) - 1) END; - - IF @debug = 1 PRINT ISNULL('@Columns = {' + @CrLf + @Columns + @CrLf + '}', '@Columns = {Null}'); - - SET @tsqlCommand = -'IF OBJECT_ID(''tempdb..__#tableName__'') IS NOT NULL DROP TABLE __#tableName__; - -SELECT __Columns__ - INTO __#tableName__ - FROM __tableFullName__ - WHERE 1=2; - -BULK INSERT __#tableName__ -FROM ''__filePath__'' -WITH ( - FIELDTERMINATOR = ''__FIELDTERMINATOR__'' - ,ROWTERMINATOR = ''__ROWTERMINATOR__'' - ,CODEPAGE = ''__CODEPAGE__'' - ,DATAFILETYPE = ''__DATAFILETYPE__'' - __KEEPIDENTITY__ - ,FIRSTROW = __FIRSTROW__ - ___KEEPNULLS___ - __LASTROW__ - __TABLOCK__ - ,ERRORFILE = ''__ERRORFILE__'' -); - -__useIdentityON__ - -INSERT INTO __tableFullName__ (__Columns__) -SELECT __Columns__ - FROM __#tableName__ -__rowOrder__; - -__useIdentityOFF__ - -IF OBJECT_ID(''tempdb..__#tableName__'') IS NOT NULL DROP TABLE __#tableName__; -'; - - SET @tsqlCommand = REPLACE(@tsqlCommand, '__#tableName__', @#tableName); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__Columns__', @Columns); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__tableFullName__', @tableFullName); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__filePath__', @filePath); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__FIELDTERMINATOR__', @FIELDTERMINATOR); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__ROWTERMINATOR__', @ROWTERMINATOR); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__CODEPAGE__', @CODEPAGE); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__DATAFILETYPE__', @DATAFILETYPE); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__KEEPIDENTITY__', CASE WHEN @useIdentity = 1 THEN ',KEEPIDENTITY' ELSE '' END); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__FIRSTROW__', @FIRSTROW); - SET @tsqlCommand = REPLACE(@tsqlCommand, '___KEEPNULLS___', CASE WHEN @KEEPNULLS = 1 THEN ',KEEPNULLS' ELSE '' END); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__LASTROW__', CASE WHEN @LASTROW > 0 THEN ',LASTROW = ' + CAST(@LASTROW AS NVARCHAR) ELSE '' END); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__TABLOCK__', CASE WHEN @TABLOCK = 1 THEN ',TABLOCK' ELSE '' END); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__ERRORFILE__', @ERRORFILE); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__useIdentityON__', CASE WHEN @useIdentity = 1 THEN 'SET IDENTITY_INSERT ' + @tableFullName + ' ON;' ELSE '' END); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__rowOrder__', CASE WHEN @rowOrder <> '' THEN 'ORDER BY ' + @rowOrder ELSE '' END); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__useIdentityOFF__', CASE WHEN @useIdentity = 1 THEN 'SET IDENTITY_INSERT ' + @tableFullName + ' OFF;' ELSE '' END); - - IF @debug = 1 PRINT ISNULL(CAST('@tsqlCommand = {' + @Crlf + @tsqlCommand + @Crlf + '}' AS NTEXT), '@tsqlCommand = {Null}' + @Crlf + '--End Deubg*********/') - ELSE - EXECUTE sp_executesql @tsqlCommand; - - IF @databaseRecoveryMode <> '' AND @databaseRecoveryModeCurrent <> @databaseRecoveryMode - BEGIN - SET @tsqlCommand = N'ALTER DATABASE __databaseName__ SET RECOVERY __databaseRecoveryMode__ WITH NO_WAIT'; - SET @tsqlCommand = REPLACE(@tsqlCommand, '__databaseName__', @databaseName); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__databaseRecoveryMode__', @databaseRecoveryModeCurrent) - - IF @debug = 1 PRINT ISNULL('@tsqlCommand = {' + @Crlf + @tsqlCommand + @Crlf + '}', '@tsqlCommand = {Null}') - - IF @debug = 0 EXECUTE sp_executesql @tsqlCommand; - END - - IF @debug = 0 SET NOCOUNT OFF ELSE PRINT @Crlf + '--End Deubg*********/'; - END TRY - - BEGIN CATCH - SET @tsqlCommand = N'ALTER DATABASE __databaseName__ SET RECOVERY __databaseRecoveryMode__ WITH NO_WAIT'; - SET @tsqlCommand = REPLACE(@tsqlCommand, '__databaseName__', @databaseName); - SET @tsqlCommand = REPLACE(@tsqlCommand, '__databaseRecoveryMode__', @databaseRecoveryModeCurrent) - EXECUTE sp_executesql @tsqlCommand; - - EXECUTE dbo.usp_LogError; - EXECUTE dbo.usp_PrintError; - END CATCH -END; -GO +IF OBJECT_ID('dbo.usp_BulkUpload', 'P') IS NULL EXECUTE ('CREATE PROCEDURE dbo.usp_BulkUpload AS SELECT 1'); +GO + + +ALTER PROCEDURE dbo.usp_BulkUpload ( + @path NVARCHAR(900) -- add a slash (\) at the end of a variable @path + , @fileName NVARCHAR(200) = '' + , @fileExtension NVARCHAR(10) = N'txt' + , @databaseName SYSNAME + , @schemaName SYSNAME = N'dbo' + , @tableName SYSNAME + , @useIdentity TINYINT = 1 -- 1 - table with identity and identity column exists in file; 2 - table with identity and identity column not exists in file; 0 - table without identity + , @identityColumnName SYSNAME = '' + , @BATCHSIZE INTEGER = 0 -- 0 - skip parameter value (by default, all data in the specified data file is one batch) + , @CHECK_CONSTRAINTS BIT = 0 -- 0 - skip parameter value (any CHECK and FOREIGN KEY constraints are ignored, after the operation, the constraints market as not-trusted) + , @CODEPAGE NVARCHAR(30) = N'65001' + , @DATAFILETYPE NVARCHAR(30) = N'char' + , @FIELDTERMINATOR NVARCHAR(10) = N'\t' + , @FIRSTROW INTEGER = 1 + , @FIRE_TRIGGERS BIT = 0 -- 0 - skip parameter value (no insert triggers execute) + , @KEEPNULLS BIT = 0 + , @KILOBYTES_PER_BATCH INTEGER = 0 -- 0 - skip parameter value (unknown by default) + , @LASTROW INTEGER = 0 + , @ROWTERMINATOR NVARCHAR(10) = N'\n' + , @ROWS_PER_BATCH INTEGER = 0 + , @TABLOCK BIT = 1 + , @ERRORFILE NVARCHAR(300) = N'' + , @MAXERRORS INTEGER = 0 -- 0 - skip parameter value (used 10 by default) + , @FORMATFILE VARCHAR(4) = '' + , @excludeColumns NVARCHAR(MAX) = N'''''' + , @rowOrderByColumn NVARCHAR(MAX) = N'' + , @skipTempDB BIT = 0 + , @columnTypeSort BIT = 1 -- 0 - physical column order; 1 - alphabetical + , @databaseRecoveryMode NVARCHAR(15) = N'' -- FULL; BULK_LOGGED; SIMPLE + , @debug BIT = 0 -- 0 - only print tsql statement; 1 - exec tsql statement +) +AS +/* +Specify Field and Row Terminators (SQL Server): https://docs.microsoft.com/en-us/sql/relational-databases/import-export/specify-field-and-row-terminators-sql-server +DOCS BULK INSERT: https://docs.microsoft.com/ru-ru/sql/t-sql/statements/bulk-insert-transact-sql + +BULK INSERT + [ database_name . [ schema_name ] . | schema_name . ] [ table_name | view_name ] + FROM 'data_file' + [ WITH + ( + [ [ , ] BATCHSIZE = batch_size ] + [ [ , ] CHECK_CONSTRAINTS ] + [ [ , ] CODEPAGE = { 'ACP' | 'OEM' | 'RAW' | 'code_page' } ] + [ [ , ] DATAFILETYPE = + { 'char' | 'native'| 'widechar' | 'widenative' } ] + [ [ , ] FIELDTERMINATOR = 'field_terminator' ] + [ [ , ] FIRSTROW = first_row ] + [ [ , ] FIRE_TRIGGERS ] + [ [ , ] FORMATFILE = 'format_file_path' ] + [ [ , ] KEEPIDENTITY ] + [ [ , ] KEEPNULLS ] + [ [ , ] KILOBYTES_PER_BATCH = kilobytes_per_batch ] + [ [ , ] LASTROW = last_row ] + [ [ , ] MAXERRORS = max_errors ] + [ [ , ] ORDER ( { column [ ASC | DESC ] } [ ,...n ] ) ] + [ [ , ] ROWS_PER_BATCH = rows_per_batch ] + [ [ , ] ROWTERMINATOR = 'row_terminator' ] + [ [ , ] TABLOCK ] + [ [ , ] ERRORFILE = 'file_name' ] + )] + +-- For table with Identity Column ID with SET IDENTITY_INSERT ON @useIdentity = 1 and KEEPIDENTITY property +EXECUTE [dbo].[usp_BulkUpload] @path = N'd:\', + @databaseName = N'DatabaseName', + @tableName = N'TableName', + @useIdentity = 1, + @debug = 0; + +-- For table with Identity Column ID without SET IDENTITY_INSERT ON @useIdentity = 2 +EXECUTE [dbo].[usp_BulkUpload] @path = N'd:\', + @databaseName = N'DatabaseName', + @tableName = N'TableName', + @useIdentity = 2, + @debug = O; +-- For table without Identity Column @useIdentity = 0 +EXECUTE [dbo].[usp_BulkUpload] @path = N'd:\', + @databaseName = N'DatabaseName', + @tableName = N'TableName', + @useIdentity = 0, + @debug = 0; +*/ +BEGIN + BEGIN TRY + DECLARE @databaseRecoveryModeCurrent NVARCHAR(15); + DECLARE @schemaTableName NVARCHAR(600) = QUOTENAME(@schemaName) + '.' + QUOTENAME(@tableName); + DECLARE @tsqlCommand NVARCHAR(MAX) = ''; + DECLARE @ParamDefinitionIndentity NVARCHAR(500) = N'@identityColumnNameIN NVARCHAR(200), @ColumnsOUT VARCHAR(MAX) OUTPUT'; + DECLARE @tableFullName NVARCHAR(600) = CASE WHEN @databaseName <> '' THEN QUOTENAME(@databaseName) + '.' ELSE '' END + @schemaTableName; + DECLARE @#tableName NVARCHAR(600) = QUOTENAME('#' + @tableName); + DECLARE @OBJECT_ID INTEGER = OBJECT_ID(@tableFullName); + DECLARE @Columns NVARCHAR(MAX) = N''; + DECLARE @filePath NVARCHAR(MAX) = @path + CASE WHEN @fileName = '' THEN @tableFullName ELSE @fileName END + '.' + @fileExtension; + DECLARE @crlf NVARCHAR(10) = CHAR(13); + DECLARE @TROW50000 NVARCHAR(1000) = N''; + + + IF @debug = 0 SET NOCOUNT ON ELSE PRINT '/******* Start Debug' + @crlf; + + IF @FORMATFILE NOT IN ('', 'xml', 'fmt') THROW 50004, 'Allowed values for parameter is xml, fmt or blank value', 1; + IF @FORMATFILE = '' AND @skipTempDB = 1 THROW 50005, 'If @skipTempDB = 1 then @FORMATFILE must be in xml or fmt', 1; + + --IF @skipTempDB = 1 and @columnTypeSort <> 0 THROW 50003, 'Please do not use alphabetical sort with direct insert key (@skipTempDB).', 1; + + IF RIGHT(@path, 1) <> '\' THROW 50001, 'Please add a slash (\) at the end of a variable @path!!!', 1; + + IF LEFT(@databaseName, 1) =N'[' OR LEFT(@tableName, 1) = N'[' OR LEFT(@schemaName, 1) = N'[' + THROW 50002, 'Please do not use quotes in Databse, Table or Schema names! In the procedure it is alredy done with QUOTENAME function.', 1; + + SET @tableFullName = CASE WHEN @databaseName <> '' THEN QUOTENAME(@databaseName) + '.' ELSE '' END + @schemaTableName; + + SET @TROW50000 = N'Table ' + @tableFullName + N' is not exists in database ' + QUOTENAME(@databaseName) + N'!!!'; + IF @OBJECT_ID IS NULL THROW 50000, @TROW50000, 1; + + IF @debug = 1 PRINT ISNULL(N'@filePath = {' + @filePath + N'}', N'@filePath = Null'); + + IF @ERRORFILE = '' SET @ERRORFILE = @path + @tableFullName + N'_error_' + REPLACE(CONVERT(NCHAR(23), GETDATE(), 126), ':', '_') + N'.txt'; + + IF @databaseRecoveryMode <> '' + BEGIN + SELECT @databaseRecoveryModeCurrent = recovery_model_desc + FROM sys.databases + WHERE name = @databaseName; + IF @debug = 1 PRINT ISNULL('@databaseRecoveryModeCurrent = {' + @databaseRecoveryModeCurrent + '}', '@databaseRecoveryModeCurrent = Null'); + + SET @tsqlCommand = N'ALTER DATABASE __databaseName__ SET RECOVERY __databaseRecoveryMode__ WITH NO_WAIT'; + SET @tsqlCommand = REPLACE(@tsqlCommand, '__databaseName__', @databaseName); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__databaseRecoveryMode__', @databaseRecoveryMode) + + IF @debug = 1 PRINT ISNULL('@tsqlCommand = {' + @crlf + @tsqlCommand + @crlf + '}', '@tsqlCommand = {Null}') + + IF @databaseRecoveryMode IN ('FULL', 'BULK_LOGGED', 'SIMPLE') + AND @debug = 0 + AND @databaseRecoveryModeCurrent <> @databaseRecoveryMode + EXECUTE sp_executesql @tsqlCommand; + END + + IF @useIdentity = 2 AND @identityColumnName = '' SET @identityColumnName = @tableName + 'ID'; + IF @debug = 1 PRINT ISNULL('@identityColumnName = {' + @identityColumnName + '}', '@identityColumnName = Null'); + + SET @tsqlCommand = +N'USE __DBName__; +SELECT @ColumnsOUT = @ColumnsOUT + QUOTENAME(Name) + '','' +FROM sys.columns sac +WHERE sac.object_id = __OBJ_ID__ + AND sac.name NOT LIKE ISNULL(@identityColumnNameIN, ''Null'') + AND QUOTENAME(Name) NOT IN (''__excludeCol__'') + __columTS__ +'; + SET @tsqlCommand = REPLACE(@tsqlCommand, '__DBName__', QUOTENAME(@databaseName)); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__OBJ_ID__', CAST(@OBJECT_ID AS NVARCHAR)); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__excludeCol__', REPLACE(@excludeColumns, ',', ''',''')); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__columTS__', CASE WHEN @columnTypeSort = 1 THEN N'ORDER BY Name;' ELSE N'ORDER BY column_id;' END); + + + IF @debug = 1 PRINT ISNULL('@OBJECT_ID = {' + CAST(@OBJECT_ID AS NVARCHAR) + '}', '@OBJECT_ID = Null'); + IF @debug = 1 PRINT ISNULL(N'@tsqlCommand = {' + @crlf + @tsqlCommand + @crlf + N'}', N'@tsqlCommand = Null'); + + EXECUTE sp_executesql @tsqlCommand, @ParamDefinitionIndentity, + @identityColumnNameIN = @identityColumnName, + @ColumnsOUT = @Columns OUTPUT SELECT @Columns; + + SET @Columns = CASE WHEN LEN(@Columns) > 0 THEN LEFT(@Columns, LEN(@Columns) - 1) END; + + IF @debug = 1 PRINT ISNULL('@Columns = {' + @crlf + @Columns + @crlf + '}', '@Columns = {Null}'); + + SET @tsqlCommand = +'IF OBJECT_ID(''tempdb..__#tableName__'') IS NOT NULL DROP TABLE __#tableName__; + +SELECT __Columns__ + INTO __#tableName__ + FROM __tableFullName__ + WHERE 1=2; + +BULK INSERT __#tableName__ +FROM ''__filePath__'' +WITH ( + __BATCHSIZE__ + FIELDTERMINATOR = ''__FIELDTERMINATOR__'' + ,ROWTERMINATOR = ''__ROWTERMINATOR__'' + __CHECK_CONSTRAINTS__ + ,CODEPAGE = ''__CODEPAGE__'' + ,DATAFILETYPE = ''__DATAFILETYPE__'' + __KEEPIDENTITY__ + ,FIRSTROW = __FIRSTROW__ + __FORMATFILE__ + __FIRE_TRIGGERS__ + __KEEPNULLS__ + __KILOBYTES_PER_BATCH__ + __LASTROW__ + __ROWS_PER_BATCH__ + __MAXERRORS__ + __TABLOCK__ + ,ERRORFILE = ''__ERRORFILE__'' +); + +__useIdentityON__ + +INSERT INTO __tableFullName__ (__Columns__) +SELECT __Columns__ + FROM __#tableName__ +__rowOrder__; + +__useIdentityOFF__ + +IF OBJECT_ID(''tempdb..__#tableName__'') IS NOT NULL DROP TABLE __#tableName__; +'; + + IF @skipTempDB = 1 AND @columnTypeSort = 0 SET @tsqlCommand = +'BULK INSERT __tableFullName__ +FROM ''__filePath__'' +WITH ( + __BATCHSIZE__ + FIELDTERMINATOR = ''__FIELDTERMINATOR__'' + ,ROWTERMINATOR = ''__ROWTERMINATOR__'' + __CHECK_CONSTRAINTS__ + ,CODEPAGE = ''__CODEPAGE__'' + ,DATAFILETYPE = ''__DATAFILETYPE__'' + __KEEPIDENTITY__ + ,FIRSTROW = __FIRSTROW__ + __FORMATFILE__ + __FIRE_TRIGGERS__ + __KEEPNULLS__ + __KILOBYTES_PER_BATCH__ + __LASTROW__ + __ROWS_PER_BATCH__ + __MAXERRORS__ + __TABLOCK__ + ,ERRORFILE = ''__ERRORFILE__'' +); +' + SET @tsqlCommand = REPLACE(@tsqlCommand, '__FORMATFILE__', CASE WHEN @FORMATFILE = 'xml' THEN ',FORMATFILE = ''' + @path + @schemaTableName +'.xml''' + WHEN @FORMATFILE = 'fmt' THEN ',FORMATFILE = ''' + @path + @schemaTableName +'.fmt''' + ELSE '' END); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__#tableName__', @#tableName); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__Columns__', @Columns); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__tableFullName__', @tableFullName); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__filePath__', @filePath); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__BATCHSIZE__', CASE WHEN @BATCHSIZE > 0 THEN 'BATCHSIZE = ' + CAST(@BATCHSIZE AS NVARCHAR) + ',' ELSE '' END); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__FIELDTERMINATOR__', @FIELDTERMINATOR); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__ROWTERMINATOR__', @ROWTERMINATOR); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__CODEPAGE__', @CODEPAGE); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__CHECK_CONSTRAINTS__', CASE WHEN @CHECK_CONSTRAINTS = 1 THEN ',CHECK_CONSTRAINTS' ELSE '' END); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__DATAFILETYPE__', @DATAFILETYPE); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__KEEPIDENTITY__', CASE WHEN @useIdentity = 1 THEN ',KEEPIDENTITY' ELSE '' END); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__FIRSTROW__', @FIRSTROW); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__FIRE_TRIGGERS__', CASE WHEN @FIRE_TRIGGERS = 1 THEN ',FIRE_TRIGGERS' ELSE '' END); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__KEEPNULLS__', CASE WHEN @KEEPNULLS = 1 THEN ',KEEPNULLS' ELSE '' END); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__KILOBYTES_PER_BATCH__', CASE WHEN @KILOBYTES_PER_BATCH > 0 THEN ',KILOBYTES_PER_BATCH = ' + CAST(@KILOBYTES_PER_BATCH AS NVARCHAR) ELSE '' END); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__LASTROW__', CASE WHEN @LASTROW > 0 THEN ',LASTROW = ' + CAST(@LASTROW AS NVARCHAR) ELSE '' END); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__TABLOCK__', CASE WHEN @TABLOCK = 1 THEN ',TABLOCK' ELSE '' END); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__ROWS_PER_BATCH__', CASE WHEN @ROWS_PER_BATCH > 0 THEN ',ROWS_PER_BATCH = ' + CAST(@ROWS_PER_BATCH AS NVARCHAR) ELSE '' END); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__MAXERRORS__', CASE WHEN @MAXERRORS > 0 THEN ',MAXERRORS = ' + CAST(@MAXERRORS AS NVARCHAR) ELSE '' END); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__ERRORFILE__', @ERRORFILE); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__useIdentityON__', CASE WHEN @useIdentity = 1 THEN 'SET IDENTITY_INSERT ' + @tableFullName + ' ON;' ELSE '' END); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__rowOrder__', CASE WHEN @rowOrderByColumn <> '' THEN 'ORDER BY ' + @rowOrderByColumn ELSE '' END); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__useIdentityOFF__', CASE WHEN @useIdentity = 1 THEN 'SET IDENTITY_INSERT ' + @tableFullName + ' OFF;' ELSE '' END); + + IF @debug = 1 PRINT ISNULL(CAST('@tsqlCommand = {' + @crlf + @tsqlCommand + @crlf + '}' AS NTEXT), '@tsqlCommand = {Null}' + @crlf + '--End Deubg*********/') + ELSE + EXECUTE sp_executesql @tsqlCommand; + + IF @databaseRecoveryMode <> '' AND @databaseRecoveryModeCurrent <> @databaseRecoveryMode + BEGIN + SET @tsqlCommand = N'ALTER DATABASE __databaseName__ SET RECOVERY __databaseRecoveryMode__ WITH NO_WAIT'; + SET @tsqlCommand = REPLACE(@tsqlCommand, '__databaseName__', @databaseName); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__databaseRecoveryMode__', @databaseRecoveryModeCurrent) + + IF @debug = 1 PRINT ISNULL('@tsqlCommand = {' + @crlf + @tsqlCommand + @crlf + '}', '@tsqlCommand = {Null}') + + IF @debug = 0 EXECUTE sp_executesql @tsqlCommand; + END + + IF @debug = 0 SET NOCOUNT OFF ELSE PRINT @crlf + '--End Deubg*********/'; + END TRY + + BEGIN CATCH + SET @tsqlCommand = N'ALTER DATABASE __databaseName__ SET RECOVERY __databaseRecoveryMode__ WITH NO_WAIT'; + SET @tsqlCommand = REPLACE(@tsqlCommand, '__databaseName__', @databaseName); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__databaseRecoveryMode__', @databaseRecoveryModeCurrent) + EXECUTE sp_executesql @tsqlCommand; + + --EXECUTE dbo.usp_LogError; + PRINT 'Error: ' + CONVERT(varchar(50), ERROR_NUMBER()) + + ', Severity: ' + CONVERT(varchar(5), ERROR_SEVERITY()) + + ', State: ' + CONVERT(varchar(5), ERROR_STATE()) + + ', Procedure: ' + ISNULL(ERROR_PROCEDURE(), '-') + + ', Line: ' + CONVERT(varchar(5), ERROR_LINE()) + + ', User name: ' + CONVERT(sysname, CURRENT_USER); + PRINT ERROR_MESSAGE(); + END CATCH +END; +GO diff --git a/Stored_Procedure/dbo.usp_CopyLogins.sql b/Stored_Procedure/dbo.usp_CopyLogins.sql new file mode 100644 index 00000000..2bee51b3 --- /dev/null +++ b/Stored_Procedure/dbo.usp_CopyLogins.sql @@ -0,0 +1,282 @@ + +If Exists (Select 1 From INFORMATION_SCHEMA.ROUTINES + Where ROUTINE_NAME = 'dba_CopyLogins' + And ROUTINE_SCHEMA = 'dbo') + Drop Procedure dbo.dba_CopyLogins +Go + +SET ANSI_NULLS ON +SET QUOTED_IDENTIFIER ON +GO + +Create Procedure dbo.dba_CopyLogins + @PartnerServer sysname, + @Debug bit = 0 +As /* +Source link: http://sqlsoldier.net/wp/sqlserver/transferring-logins-to-a-database-mirror Author: SQLSoldier */ +Declare @MaxID int, + @CurrID int, + @SQL nvarchar(max), + @LoginName sysname, + @IsDisabled int, + @Type char(1), + @SID varbinary(85), + @SIDString nvarchar(100), + @PasswordHash varbinary(256), + @PasswordHashString nvarchar(300), + @RoleName sysname, + @Machine sysname, + @PermState nvarchar(60), + @PermName sysname, + @Class tinyint, + @MajorID int, + @ErrNumber int, + @ErrSeverity int, + @ErrState int, + @ErrProcedure sysname, + @ErrLine int, + @ErrMsg nvarchar(2048) +Declare @Logins Table (LoginID int identity(1, 1) not null primary key, + [Name] sysname not null, + [SID] varbinary(85) not null, + IsDisabled int not null, + [Type] char(1) not null, + PasswordHash varbinary(256) null) +Declare @Roles Table (RoleID int identity(1, 1) not null primary key, + RoleName sysname not null, + LoginName sysname not null) +Declare @Perms Table (PermID int identity(1, 1) not null primary key, + LoginName sysname not null, + PermState nvarchar(60) not null, + PermName sysname not null, + Class tinyint not null, + ClassDesc nvarchar(60) not null, + MajorID int not null, + SubLoginName sysname null, + SubEndPointName sysname null) + +Set NoCount On; + +If CharIndex('\', @PartnerServer) > 0 + Begin + Set @Machine = LEFT(@PartnerServer, CharIndex('\', @PartnerServer) - 1); + End +Else + Begin + Set @Machine = @PartnerServer; + End + +-- Get all Windows logins from principal server +Set @SQL = 'Select P.name, P.sid, P.is_disabled, P.type, L.password_hash' + CHAR(10) + + 'From ' + QUOTENAME(@PartnerServer) + '.master.sys.server_principals P' + CHAR(10) + + 'Left Join ' + QUOTENAME(@PartnerServer) + '.master.sys.sql_logins L On L.principal_id = P.principal_id' + CHAR(10) + + 'Where P.type In (''U'', ''G'', ''S'')' + CHAR(10) + + 'And P.name <> ''sa''' + CHAR(10) + + 'And P.name Not Like ''##%''' + CHAR(10) + + 'And CharIndex(''' + @Machine + '\'', P.name) = 0;'; + +Insert Into @Logins (Name, SID, IsDisabled, Type, PasswordHash) +Exec sp_executesql @SQL; + +-- Get all roles from principal server +Set @SQL = 'Select RoleP.name, LoginP.name' + CHAR(10) + + 'From ' + QUOTENAME(@PartnerServer) + '.master.sys.server_role_members RM' + CHAR(10) + + 'Inner Join ' + QUOTENAME(@PartnerServer) + '.master.sys.server_principals RoleP' + + CHAR(10) + char(9) + 'On RoleP.principal_id = RM.role_principal_id' + CHAR(10) + + 'Inner Join ' + QUOTENAME(@PartnerServer) + '.master.sys.server_principals LoginP' + + CHAR(10) + char(9) + 'On LoginP.principal_id = RM.member_principal_id' + CHAR(10) + + 'Where LoginP.type In (''U'', ''G'', ''S'')' + CHAR(10) + + 'And LoginP.name <> ''sa''' + CHAR(10) + + 'And LoginP.name Not Like ''##%''' + CHAR(10) + + 'And RoleP.type = ''R''' + CHAR(10) + + 'And CharIndex(''' + @Machine + '\'', LoginP.name) = 0;'; + +Insert Into @Roles (RoleName, LoginName) +Exec sp_executesql @SQL; + +-- Get all explicitly granted permissions +Set @SQL = 'Select P.name Collate database_default,' + CHAR(10) + + ' SP.state_desc, SP.permission_name, SP.class, SP.class_desc, SP.major_id,' + CHAR(10) + + ' SubP.name Collate database_default,' + CHAR(10) + + ' SubEP.name Collate database_default' + CHAR(10) + + 'From ' + QUOTENAME(@PartnerServer) + '.master.sys.server_principals P' + CHAR(10) + + 'Inner Join ' + QUOTENAME(@PartnerServer) + '.master.sys.server_permissions SP' + CHAR(10) + + CHAR(9) + 'On SP.grantee_principal_id = P.principal_id' + CHAR(10) + + 'Left Join ' + QUOTENAME(@PartnerServer) + '.master.sys.server_principals SubP' + CHAR(10) + + CHAR(9) + 'On SubP.principal_id = SP.major_id And SP.class = 101' + CHAR(10) + + 'Left Join ' + QUOTENAME(@PartnerServer) + '.master.sys.endpoints SubEP' + CHAR(10) + + CHAR(9) + 'On SubEP.endpoint_id = SP.major_id And SP.class = 105' + CHAR(10) + + 'Where P.type In (''U'', ''G'', ''S'')' + CHAR(10) + + 'And P.name <> ''sa''' + CHAR(10) + + 'And P.name Not Like ''##%''' + CHAR(10) + + 'And CharIndex(''' + @Machine + '\'', P.name) = 0;' + +Insert Into @Perms (LoginName, PermState, PermName, Class, ClassDesc, MajorID, SubLoginName, SubEndPointName) +Exec sp_executesql @SQL; + +Select @MaxID = Max(LoginID), @CurrID = 1 +From @Logins; + +While @CurrID <= @MaxID + Begin + Select @LoginName = Name, + @IsDisabled = IsDisabled, + @Type = [Type], + @SID = [SID], + @PasswordHash = PasswordHash + From @Logins + Where LoginID = @CurrID; + + If Not Exists (Select 1 From sys.server_principals + Where name = @LoginName) + Begin + Set @SQL = 'Create Login ' + quotename(@LoginName) + If @Type In ('U', 'G') + Begin + Set @SQL = @SQL + ' From Windows;' + End + Else + Begin + Set @PasswordHashString = '0x' + + Cast('' As XML).value('xs:hexBinary(sql:variable("@PasswordHash"))', 'nvarchar(300)'); + + Set @SQL = @SQL + ' With Password = ' + @PasswordHashString + ' HASHED, '; + + Set @SIDString = '0x' + + Cast('' As XML).value('xs:hexBinary(sql:variable("@SID"))', 'nvarchar(100)'); + Set @SQL = @SQL + 'SID = ' + @SIDString + ';'; + End + + If @Debug = 0 + Begin + Begin Try + Exec sp_executesql @SQL; + End Try + Begin Catch + Set @ErrNumber = ERROR_NUMBER(); + Set @ErrSeverity = ERROR_SEVERITY(); + Set @ErrState = ERROR_STATE(); + Set @ErrProcedure = ERROR_PROCEDURE(); + Set @ErrLine = ERROR_LINE(); + Set @ErrMsg = ERROR_MESSAGE(); + RaisError(@ErrMsg, 1, 1); + End Catch + End + Else + Begin + Print @SQL; + End + + If @IsDisabled = 1 + Begin + Set @SQL = 'Alter Login ' + quotename(@LoginName) + ' Disable;' + If @Debug = 0 + Begin + Begin Try + Exec sp_executesql @SQL; + End Try + Begin Catch + Set @ErrNumber = ERROR_NUMBER(); + Set @ErrSeverity = ERROR_SEVERITY(); + Set @ErrState = ERROR_STATE(); + Set @ErrProcedure = ERROR_PROCEDURE(); + Set @ErrLine = ERROR_LINE(); + Set @ErrMsg = ERROR_MESSAGE(); + RaisError(@ErrMsg, 1, 1); + End Catch + End + Else + Begin + Print @SQL; + End + End + End + Set @CurrID = @CurrID + 1; + End + +Select @MaxID = Max(RoleID), @CurrID = 1 +From @Roles; + +While @CurrID <= @MaxID + Begin + Select @LoginName = LoginName, + @RoleName = RoleName + From @Roles + Where RoleID = @CurrID; + + If Not Exists (Select 1 From sys.server_role_members RM + Inner Join sys.server_principals RoleP + On RoleP.principal_id = RM.role_principal_id + Inner Join sys.server_principals LoginP + On LoginP.principal_id = RM.member_principal_id + Where LoginP.type In ('U', 'G', 'S') + And RoleP.type = 'R' + And RoleP.name = @RoleName + And LoginP.name = @LoginName) + Begin + If @Debug = 0 + Begin + Exec sp_addsrvrolemember @rolename = @RoleName, + @loginame = @LoginName; + End + Else + Begin + Print 'Exec sp_addsrvrolemember @rolename = ''' + @RoleName + ''','; + Print ' @loginame = ''' + @LoginName + ''';'; + End + End + + Set @CurrID = @CurrID + 1; + End + +Select @MaxID = Max(PermID), @CurrID = 1 +From @Perms; + +While @CurrID <= @MaxID + Begin + Select @PermState = PermState, + @PermName = PermName, + @Class = Class, + @LoginName = LoginName, + @MajorID = MajorID, + @SQL = PermState + space(1) + PermName + SPACE(1) + + Case Class When 101 Then 'On Login::' + QUOTENAME(SubLoginName) + When 105 Then 'On ' + ClassDesc + '::' + QUOTENAME(SubEndPointName) + Else '' End + + ' To ' + QUOTENAME(LoginName) + ';' + From @Perms + Where PermID = @CurrID; + + If Not Exists (Select 1 From sys.server_principals P + Inner Join sys.server_permissions SP On SP.grantee_principal_id = P.principal_id + Where SP.state_desc = @PermState + And SP.permission_name = @PermName + And SP.class = @Class + And P.name = @LoginName + And SP.major_id = @MajorID) + Begin + If @Debug = 0 + Begin + Begin Try + Exec sp_executesql @SQL; + End Try + Begin Catch + Set @ErrNumber = ERROR_NUMBER(); + Set @ErrSeverity = ERROR_SEVERITY(); + Set @ErrState = ERROR_STATE(); + Set @ErrProcedure = ERROR_PROCEDURE(); + Set @ErrLine = ERROR_LINE(); + Set @ErrMsg = ERROR_MESSAGE(); + RaisError(@ErrMsg, 1, 1); + End Catch + End + Else + Begin + Print @SQL; + End + End + + Set @CurrID = @CurrID + 1; + End + +Set NoCount Off; diff --git a/Stored_Procedure/usp_CreatePlantUMLCode.sql b/Stored_Procedure/dbo.usp_CreatePlantUMLCode.sql similarity index 100% rename from Stored_Procedure/usp_CreatePlantUMLCode.sql rename to Stored_Procedure/dbo.usp_CreatePlantUMLCode.sql diff --git a/Stored_Procedure/dbo.usp_DBA_Rename_Database.sql b/Stored_Procedure/dbo.usp_DBA_Rename_Database.sql new file mode 100644 index 00000000..2d4c250f --- /dev/null +++ b/Stored_Procedure/dbo.usp_DBA_Rename_Database.sql @@ -0,0 +1,71 @@ +-- Original LInk: http://www.sqlservercentral.com/scripts/renaming/155059 + +-- ============================================= +-- Author: Darren Thompson +-- Create date: 3/23/2017 +-- Description: rename database +-- ============================================= + +CREATE PROCEDURE [dbo].[usp_DBA_Rename_Database] + @DatabaseName varchar(100), @NewName varchar(100) +AS +BEGIN + DECLARE @sql varchar(1000) + DECLARE @physLoc varchar(1000), @physLoc_log varchar(1000) + DECLARE @physLocNew varchar(1000), @physLoc_logNew varchar(1000) + + IF (@DatabaseName NOT IN ('master','DBA','msdb','tempdb')) + BEGIN + IF EXISTS(SELECT * FROM sys.databases WHERE Name = @DatabaseName) + BEGIN + SELECT @physLoc = physical_name FROM sys.master_files WHERE name = @DatabaseName and type_desc = 'ROWS' + SELECT @physLoc_log = physical_name FROM sys.master_files WHERE name = @DatabaseName + '_log' and type_desc = 'LOG' + + --// SET TO SINGLE USER + SET @sql = 'ALTER DATABASE ' + @DatabaseName + ' SET SINGLE_USER WITH ROLLBACK IMMEDIATE' + EXECUTE (@sql) + + --// RENAME DATABASE: LOGICAL NAME + SET @sql = ' + ALTER DATABASE [' + @DatabaseName + '] + MODIFY FILE (NAME=N''' + @DatabaseName + ''', NEWNAME=N''' + @NewName + ''') + ALTER DATABASE [' + @DatabaseName + '] + MODIFY FILE (NAME=N''' + @DatabaseName + '_log'', NEWNAME=N''' + @NewName + '_log'')' + EXECUTE(@sql) + + + SET @sql = 'ALTER DATABASE ' + @DatabaseName + ' SET OFFLINE' + EXECUTE (@sql) + + EXEC sp_configure 'xp_cmdshell', 1 --// 0 = Disabled , 1 = Enabled + RECONFIGURE WITH OVERRIDE + + --// RENAME DATABASE: PHYSICAL FILE NAME + SET @sql = 'EXEC xp_cmdshell ''RENAME "' + @physLoc + '", "' + @newName + '.mdf"''' -- CurrentPath&Name, NewName + EXECUTE (@sql) + + SET @sql = 'EXEC xp_cmdshell ''RENAME "' + @physLoc_log + '", "' + @newName + '_log.ldf"''' -- CurrentPath&Name, NewName + EXECUTE (@sql) + + EXEC sp_configure 'xp_cmdshell', 0 --// 0 = Disabled , 1 = Enabled + RECONFIGURE WITH OVERRIDE + + + ----// ATTACH (CREATE) DATABASE + SELECT @physLocNew = REPLACE(@physLoc,@DatabaseName,@newName) + SELECT @physLoc_logNew = REPLACE(@physLoc_log,@DatabaseName,@newName) + + SET @sql = ' + CREATE DATABASE [' + @NewName + '] ON + ( FILENAME = N''' + @physLocNew + ''' ), + ( FILENAME = N''' + @physLoc_logNew + ''' ) + FOR ATTACH ' + EXECUTE (@sql) + + --// DETACH DATABASE + SET @sql = 'EXEC master.dbo.sp_detach_db @dbname = N''' + @DatabaseName + '''' + EXECUTE (@sql) + END + END + +END diff --git a/Stored_Procedure/dbo.usp_Dijkstra.sql b/Stored_Procedure/dbo.usp_Dijkstra.sql new file mode 100644 index 00000000..acbd5257 --- /dev/null +++ b/Stored_Procedure/dbo.usp_Dijkstra.sql @@ -0,0 +1,117 @@ +IF OBJECT_ID (N'dbo.usp_Dijkstra', 'P') IS NULL + EXECUTE('CREATE PROCEDURE usp_Dijkstra AS SELECT 1'); +GO + +ALTER PROCEDURE dbo.usp_Dijkstra (@StartNode int, @EndNode int = NULL) +AS +/* +http://www.hansolav.net/sql/graphs.html +Runs Dijkstras algorithm from the specified node. +@StartNode: Id of node to start from. +@EndNode: Stop the search when the shortest path to this node is found. + Specify NULL find shortest path to all nodes. + +CREATE TABLE dbo.Node +( + Id int NOT NULL PRIMARY KEY, + Name varchar(50) NULL +) + +CREATE TABLE dbo.Edge +( + FromNode int NOT NULL REFERENCES dbo.Node (Id), + ToNode int NOT NULL REFERENCES dbo.Node (Id), + [Weight] decimal (10, 3) NULL, + PRIMARY KEY CLUSTERED (FromNode ASC, ToNode ASC) +) +*/ +BEGIN + -- Automatically rollback the transaction if something goes wrong. + SET XACT_ABORT ON + BEGIN TRAN + + -- Increase performance and do not intefere with the results. + SET NOCOUNT ON; + + -- Create a temporary table for storing the estimates as the algorithm runs + CREATE TABLE #Nodes + ( + Id int NOT NULL PRIMARY KEY, -- The Node Id + Estimate decimal(10,3) NOT NULL, -- What is the distance to this node, so far? + Predecessor int NULL, -- The node we came from to get to this node with this distance. + Done bit NOT NULL -- Are we done with this node yet (is the estimate the final distance)? + ) + + -- Fill the temporary table with initial data + INSERT INTO #Nodes (Id, Estimate, Predecessor, Done) + SELECT Id, 9999999.999, NULL, 0 FROM dbo.Node + + -- Set the estimate for the node we start in to be 0. + UPDATE #Nodes SET Estimate = 0 WHERE Id = @StartNode + IF @@rowcount <> 1 + BEGIN + DROP TABLE #Nodes + RAISERROR ('Could not set start node', 11, 1) + ROLLBACK TRAN + RETURN 1 + END + + DECLARE @FromNode int, @CurrentEstimate int + + -- Run the algorithm until we decide that we are finished + WHILE 1 = 1 + BEGIN + -- Reset the variable, so we can detect getting no records in the next step. + SELECT @FromNode = NULL + + -- Select the Id and current estimate for a node not done, with the lowest estimate. + SELECT TOP 1 @FromNode = Id, @CurrentEstimate = Estimate + FROM #Nodes WHERE Done = 0 AND Estimate < 9999999.999 + ORDER BY Estimate + + -- Stop if we have no more unvisited, reachable nodes. + IF @FromNode IS NULL OR @FromNode = @EndNode BREAK + + -- We are now done with this node. + UPDATE #Nodes SET Done = 1 WHERE Id = @FromNode + + -- Update the estimates to all neighbour node of this one (all the nodes + -- there are edges to from this node). Only update the estimate if the new + -- proposal (to go via the current node) is better (lower). + UPDATE #Nodes + SET Estimate = @CurrentEstimate + e.Weight, Predecessor = @FromNode + FROM #Nodes n INNER JOIN dbo.Edge e ON n.Id = e.ToNode + WHERE Done = 0 AND e.FromNode = @FromNode AND (@CurrentEstimate + e.Weight) < n.Estimate + + END; + + -- Select the results. We use a recursive common table expression to + -- get the full path from the start node to the current node. + WITH BacktraceCTE(Id, Name, Distance, Path, NamePath) + AS + ( + -- Anchor/base member of the recursion, this selects the start node. + SELECT n.Id, node.Name, n.Estimate, CAST(n.Id AS varchar(8000)), + CAST(node.Name AS varchar(8000)) + FROM #Nodes n JOIN dbo.Node node ON n.Id = node.Id + WHERE n.Id = @StartNode + + UNION ALL + + -- Recursive member, select all the nodes which have the previous + -- one as their predecessor. Concat the paths together. + SELECT n.Id, node.Name, n.Estimate, + CAST(cte.Path + ',' + CAST(n.Id as varchar(10)) as varchar(8000)), + CAST(cte.NamePath + ',' + node.Name AS varchar(8000)) + FROM #Nodes n JOIN BacktraceCTE cte ON n.Predecessor = cte.Id + JOIN dbo.Node node ON n.Id = node.Id + ) + SELECT Id, Name, Distance, Path, NamePath FROM BacktraceCTE + WHERE Id = @EndNode OR @EndNode IS NULL -- This kind of where clause can potentially produce + ORDER BY Id -- a bad execution plan, but I use it for simplicity here. + + DROP TABLE #Nodes + COMMIT TRAN + RETURN 0 +END +GO diff --git a/Stored_Procedure/usp_EnableAndAddFileStreamForDatabase.sql b/Stored_Procedure/dbo.usp_EnableAndAddFileStreamForDatabase.sql similarity index 100% rename from Stored_Procedure/usp_EnableAndAddFileStreamForDatabase.sql rename to Stored_Procedure/dbo.usp_EnableAndAddFileStreamForDatabase.sql diff --git a/Stored_Procedure/usp_FindDbObjects.sql b/Stored_Procedure/dbo.usp_FindDbObjects.sql similarity index 100% rename from Stored_Procedure/usp_FindDbObjects.sql rename to Stored_Procedure/dbo.usp_FindDbObjects.sql diff --git a/Stored_Procedure/dbo.usp_GenerateRandomPassword.sql b/Stored_Procedure/dbo.usp_GenerateRandomPassword.sql new file mode 100644 index 00000000..5d862ec0 --- /dev/null +++ b/Stored_Procedure/dbo.usp_GenerateRandomPassword.sql @@ -0,0 +1,104 @@ +IF OBJECT_ID('dbo.usp_GenerateRandomPassword') IS NULL + EXEC('CREATE PROCEDURE dbo.usp_GenerateRandomPassword AS SELECT 1;'); +GO + + +ALTER PROCEDURE dbo.usp_GenerateRandomPassword( + @length int = 20, + @allowAtoZ BIT = 1, + @allow0to9 BIT = 1, + @allowSpecials1 BIT = 1, + @allowSpecials2 BIT = 1, + @avoidAmbiguousCharacters BIT = 1) +AS +/* +summary: > + This procedure generate random passwords with some customization + result. + Source link: https://github.com/ktaranov/sqlserver-kit/blob/master/Stored_Procedure/dbo.usp_GenerateRandomPassword.sql +Revisions: + - Author: Pinal Dave + Original link: https://blog.sqlauthority.com/2018/08/15/sql-server-how-to-generate-random-password-enhanced-version-part-2/?utm_source=DBW&utm_medium=pubemail + Version: 1.0 + Modification: First version + date: 2018-08-15 + - version: 1.1 + modification: add CREATE and ALTER logic, add documentation, format code + date: 2019-01-29 by Konstantin Taranov +Example: + - code: EXEC dbo.usp_GenerateRandomPassword @avoidAmbiguousCharacters = 0; + EXEC dbo.usp_GenerateRandomPassword @length = 30, @allow0to9 = 0, @allowSpecials1 = 0, @allowSpecials2 = 0, @avoidAmbiguousCharacters = 0; + EXEC dbo.usp_GenerateRandomPassword @length = 40, @allow0to9 = 0, @allowSpecials1 = 0, @allowSpecials2 = 1, @avoidAmbiguousCharacters = 1; + EXEC dbo.usp_GenerateRandomPassword @length = 90, @allowAtoZ = 0, @allow0to9 = 0, @allowSpecials1 = 1, @allowSpecials2 = 1; + + IF OBJECT_ID(N't', 'U') IS NULL + BEGIN + CREATE TABLE t( + [Password] NVARCHAR(4000), + PasswordLength INT, + AllowAtoZ BIT, + Allow0to9 BIT, + AllowSpecials1 BIT, + AllowSpecials2 BIT, + AvoidAmbiguousCharacters BIT); + END; + DECLARE @i INT = 1; + WHILE @i <= 50 + BEGIN + INSERT INTO t EXEC dbo.usp_GenerateRandomPassword; + SET @i = @i + 1; + END; + SELECT * FROM t; + DROP TABLE t; +returns: > + single row with new random password and all input parameters. +*/ +BEGIN + DECLARE @range Varchar(90) = '' + -- Start by assuming @avoidAmbiguousCharacters is true + IF @allowAtoZ = 1 +BEGIN + SET @range = @range +'ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'; + END + IF @allow0to9 = 1 +BEGIN + SET @range = @range +'23456789'; + END + IF @allowSpecials1 = 1 +BEGIN + SET @range = @range +'!"#$%&''()*+,-./'; + END + IF @allowSpecials2 = 1 +BEGIN + SET @range = @range +':;<=>?@'; + END + IF @avoidAmbiguousCharacters = 0 +BEGIN + -- put back capital i, lowercase l, capital o, the number(s) 0, 1 + IF @allowAtoZ = 1 +BEGIN + SET @range = @range +'IOl'; + END + IF @allow0to9 = 1 +BEGIN + SET @range = @range +'01'; + END + END + DECLARE @pwd VARCHAR(512) = ''; + --use master.dbo.spt_values as a pseudo tally(numbers) table + + SELECT TOP(@length) + @pwd += SUBSTRING(@range,fn.rnd,1) + FROM master.dbo.spt_values sv + CROSS APPLY ( + SELECT [rnd] = (ABS(CHECKSUM(NEWID())) % (LEN(@range))) + ) AS fn + SELECT @pwd AS [Password], + @length AS PasswordLength, + @allowAtoZ, + @allow0to9 AS Allow0to9, + @allowSpecials1 AS AllowSpecials1, + @allowSpecials2 AS AllowSpecials2, + @avoidAmbiguousCharacters AS AvoidAmbiguousCharacters; +END; +GO diff --git a/Stored_Procedure/usp_Generate_Merge.sql b/Stored_Procedure/dbo.usp_Generate_Merge.sql similarity index 100% rename from Stored_Procedure/usp_Generate_Merge.sql rename to Stored_Procedure/dbo.usp_Generate_Merge.sql diff --git a/Stored_Procedure/dbo.usp_GetPackageDetails.sql b/Stored_Procedure/dbo.usp_GetPackageDetails.sql new file mode 100644 index 00000000..d966f9b1 --- /dev/null +++ b/Stored_Procedure/dbo.usp_GetPackageDetails.sql @@ -0,0 +1,1505 @@ +/* +Author: Divya Agrawal +Original link: http://www.sqlservercentral.com/articles/Integration+Services+(SSIS)/128862/ +*/ + + +ALTER PROCEDURE [dbo].[usp_GetPackageDetails] @Path VARCHAR(8000) = 'C:\Packages1' +AS +/* +exec [usp_GetPackageDetails] 'C:\Packages1' + +exec sp_configure 'show advanced options',1 +reconfigure with override +go +exec sp_configure 'xp_cmdshell',1 +reconfigure with override +*/ +BEGIN + SET NOCOUNT ON; + + --------------------drop all temp tables------------------------------------ + IF OBJECT_id('pkgStats') IS NOT NULL + DROP TABLE pkgStats; + + IF OBJECT_id('ConnectionDetails') IS NOT NULL + DROP TABLE ConnectionDetails; + + IF OBJECT_id('PackageAnalysis') IS NOT NULL + DROP TABLE PackageAnalysis; + + IF OBJECT_id('TblPrecedenceConstraint') IS NOT NULL + DROP TABLE TblPrecedenceConstraint; + + IF OBJECT_id('TblControlFlowDetails') IS NOT NULL + DROP TABLE TblControlFlowDetails; + + IF OBJECT_id('TblScriptTaskdetails') IS NOT NULL + DROP TABLE TblScriptTaskdetails; + + IF OBJECT_id('TblExecutePackageTaskDetails') IS NOT NULL + DROP TABLE TblExecutePackageTaskDetails; + + IF OBJECT_id('TblSQLTaskDetails') IS NOT NULL + DROP TABLE TblSQLTaskDetails; + + IF OBJECT_id('TblDFTTaskDetails') IS NOT NULL + DROP TABLE TblDFTTaskDetails; + + IF OBJECT_id('TblSrcDestDetails') IS NOT NULL + DROP TABLE TblSrcDestDetails; + + IF OBJECT_id('TblDerivedTaskDetails') IS NOT NULL + DROP TABLE TblDerivedTaskDetails; + + IF OBJECT_id('TblLookupTaskDetails') IS NOT NULL + DROP TABLE TblLookupTaskDetails; + + IF OBJECT_id('TblVariableDetails') IS NOT NULL + DROP TABLE TblVariableDetails; + IF OBJECT_id('TblParameterDetails') IS NOT NULL + DROP TABLE TblParameterDetails; + IF OBJECT_id('tempdb.dbo.#tempprecedence1') IS NOT NULL + DROP TABLE #tempprecedence1; + + IF OBJECT_id('tempdb.dbo.#tempprecedence2') IS NOT NULL + DROP TABLE #tempprecedence2; + + IF OBJECT_id('tempdb.dbo.#tempprecedence3') IS NOT NULL + DROP TABLE #tempprecedence3; + + IF OBJECT_id('tempdb.dbo.#tempprecedence5') IS NOT NULL + DROP TABLE #tempprecedence5; + IF OBJECT_id('tempdb.dbo.#tempprecedence5_Hierarchy') IS NOT NULL + DROP TABLE #tempprecedence5_Hierarchy; + + IF OBJECT_id('tempdb.dbo.#tempprecedence4') IS NOT NULL + DROP TABLE #tempprecedence4; + + IF OBJECT_id('tempdb.dbo.#tempprecedence6') IS NOT NULL + DROP TABLE #tempprecedence6; + + -------------------drop all temp tables------------------------------------ + ------------------create all tables------------------------------------------- + CREATE TABLE pkgStats ( + RowID INT identity(1, 1) NOT NULL PRIMARY KEY + ,PackagePath VARCHAR(8000) NOT NULL + ,PackageXML XML NOT NULL + ,PackageCreatorName VARCHAR(1000) NULL + ,PackageProtectionLevel varchar(100) null + ); + + CREATE TABLE ConnectionDetails ( + ConnectionManager VARCHAR(5000) + ,ConnectionManagerID VARCHAR(100) + ); + + CREATE TABLE PackageAnalysis ( + TableRowID INT identity(1, 1) NOT NULL + ,PackageSequenceNo INT + ,SequenceNo INT + ,RowID INT + ,PackagePath VARCHAR(5000) + ,PackageName VARCHAR(max) + ,Category VARCHAR(1000) + ,PackageCreatorName VARCHAR(1000) + ,PackageProtectionLevel Varchar(100) + ,TaskPath VARCHAR(max) + ,ObjectName VARCHAR(500) + ,ObjectType VARCHAR(max) + ,ObjectTypeDescription VARCHAR(max) + ,DelayValidationPropertyValue VARCHAR(10) + ,ObjectValue VARCHAR(max) + ,ExpressionValue VARCHAR(5000) + ,ConnectionManager VARCHAR(5000) + ,SourceColumn VARCHAR(5000) + ,DestinationColumn VARCHAR(5000) + ,SortKeyPosition varchar(10) + ,DerivedValue VARCHAR(5000) + ,IsDisabled VARCHAR(10) + ,ResultSetParameterName VARCHAR(1000) + ,ParameterBindingSequence VARCHAR(1000) + ,ParameterBindingParameterName VARCHAR(1000) + --,ObjectPathFrom VARCHAR(8000) + --,ObjectPathTo VARCHAR(8000) + ,ExecutePackageExpression VARCHAR(8000) + ,ExecutedPackageName VARCHAR(8000) + ,ExecutePackageConnection VARCHAR(8000) + ,Script VARCHAR(max) + ,Variable VARCHAR(1000) + ,ConnectionManagerID VARCHAR(100) + ,LookupJoins VARCHAR(8000) + ,IsSortedProperty varchar(10) + ,MultihashcolumnSortPosition varchar(max) + ,RetainSameConnectionProperty varchar(100) + ); + + CREATE CLUSTERED INDEX CX_ControlFlow ON PackageAnalysis (TableRowID); + + CREATE TABLE TblPrecedenceConstraint ( + RowID INT + ,PackagePath VARCHAR(2000) + ,TaskFrom VARCHAR(1000) + ,Taskto VARCHAR(1000) + ,PrecOrder INT + ,PrecOrder1 INT + ,TaskType VARCHAR(1000) + ); + + CREATE TABLE TblVariableDetails ( + VariableRowID INT identity(1, 1) NOT NULL + ,RowID INT + ,PackagePath VARCHAR(5000) + ,PackageName VARCHAR(max) + ,Category VARCHAR(1000) + ,PackageCreatorName VARCHAR(1000) + ,TaskPath VARCHAR(max) + ,ObjectName VARCHAR(500) + ,ObjectType VARCHAR(max) + ,ObjectValue VARCHAR(max) + ,ExpressionValue VARCHAR(5000) + ,VariableHexValue VARCHAR(1000) + ); + + CREATE CLUSTERED INDEX CX_Variable ON TblVariableDetails (VariableRowID); + + CREATE TABLE TblParameterDetails ( + ParameterRowID INT identity(1, 1) NOT NULL + ,RowID INT + ,PackagePath VARCHAR(5000) + ,PackageName VARCHAR(max) + ,Category VARCHAR(1000) + ,PackageCreatorName VARCHAR(1000) + ,TaskPath VARCHAR(max) + ,ObjectName VARCHAR(500) + ,ObjectType VARCHAR(max) + ,ObjectValue VARCHAR(max) + ,ExpressionValue VARCHAR(5000) + ,ParameterHexValue VARCHAR(1000) + ); + + CREATE CLUSTERED INDEX CX_Variable ON TblParameterDetails (ParameterRowID); + CREATE TABLE TblControlFlowDetails ( + ControlFlowDetailsRowID INT identity(1, 1) NOT NULL + ,RowID INT + ,TaskPath VARCHAR(8000) + ,TaskName VARCHAR(2000) + ,TaskTypeDescription VARCHAR(MAX) + ,TaskType VARCHAR(5000) + ,DelayValidationPropertyValue VARCHAR(100) + ,DFTQuery XML + ,SqlTaskQry XML + ,ExecPkgTaskQry XML + ,ScriptTaskQry XML + ,IsDisabled VARCHAR(10) + ,ExpressionValue VARCHAR(5000) + ); + + CREATE CLUSTERED INDEX CX_ControlFlow ON TblControlFlowDetails ( + ControlFlowDetailsRowID + ,RowID + ); + + CREATE NONCLUSTERED INDEX NCX_ControlFlow ON TblControlFlowDetails (RowID); + + CREATE TABLE TblScriptTaskdetails ( + RowID INT + ,ControlFlowDetailsRowID INT + ,Script VARCHAR(max) + ); + + CREATE CLUSTERED INDEX CX_TblScriptTaskdetails ON TblScriptTaskdetails ( + ControlFlowDetailsRowID + ,RowID + ); + + CREATE TABLE TblExecutePackageTaskDetails ( + RowID INT + ,ControlFlowDetailsRowID INT + ,ExecutePackageExpression VARCHAR(1000) + ,ExecutedPackageName VARCHAR(1000) + ,ExecutePackageConnection VARCHAR(1000) + ); + + CREATE CLUSTERED INDEX CX_TblExecutePackageTaskDetails ON TblExecutePackageTaskDetails ( + ControlFlowDetailsRowID + ,RowID + ); + + CREATE TABLE TblSQLTaskDetails ( + RowID INT + ,ControlFlowDetailsRowID INT + ,ResultSetParameterName VARCHAR(1000) + ,ParameterBindingSequence VARCHAR(1000) + ,ParameterBindingParameterName VARCHAR(1000) + ); + + CREATE CLUSTERED INDEX CX_TblSQLTaskDetails ON TblSQLTaskDetails ( + ControlFlowDetailsRowID + ,RowID + ); + + CREATE TABLE TblDFTTaskDetails ( + DataFlowDetailsRowID INT identity(1, 1) NOT NULL + ,RowID INT + ,DFTTaskName VARCHAR(max) + ,DFTTasksPath VARCHAR(max) + ,DFTTaskType VARCHAR(max) + ,DFTTaskType1 VARCHAR(max) + ,DFTRowSet VARCHAR(max) + ,ParameterBindingParameterName VARCHAR(2000) + ,DFTSQLCommand VARCHAR(max) + ,DFTConnectionManager VARCHAR(max) + ,Variable VARCHAR(max) + ,InputQry XML + ,OutputQry XML + ,IsSortedProperty VARCHAR(10) + ,MultihashcolumnSortPosition varchar(max) + ); + + CREATE CLUSTERED INDEX CX_TblDFTTaskDetails ON TblDFTTaskDetails ( + DataFlowDetailsRowID + ,RowID + ); + + CREATE NONCLUSTERED INDEX NCX_TblDFTTaskDetails ON TblDFTTaskDetails (RowID); + + CREATE TABLE TblSrcDestDetails ( + DataFlowDetailsRowID INT + ,RowID INT + ,SourceColumn VARCHAR(8000) + ,DestinationColumn VARCHAR(8000) + ,SortKeyPosition varchar(10) + + ); + + CREATE CLUSTERED INDEX CX_TblSrcDestDetails ON TblSrcDestDetails ( + DataFlowDetailsRowID + ,RowID + ); + + CREATE TABLE TblDerivedTaskDetails ( + DataFlowDetailsRowID INT + ,RowID INT + ,DerivedValue VARCHAR(8000) + ,SourceColumn VARCHAR(8000) + ,DestinationColumn VARCHAR(8000) + ); + + CREATE CLUSTERED INDEX CX_TblDerivedTaskDetails ON TblDerivedTaskDetails ( + DataFlowDetailsRowID + ,RowID + ); + + CREATE TABLE TblLookupTaskDetails ( + DataFlowDetailsRowID INT + ,RowID INT + ,LookupJoins VARCHAR(8000) + ,SourceColumn VARCHAR(8000) + ,DestinationColumn VARCHAR(8000) + ); + + CREATE CLUSTERED INDEX CX_TblLookupTaskDetails ON TblLookupTaskDetails ( + DataFlowDetailsRowID + ,RowID + ); +--------------------------create all tables------------------------------------------- + -------------------Iterate over all dtsx files from folder------------------------------ + SET @Path = @Path + '\*.dtsx'; + + DECLARE @MyFiles TABLE ( + MyID INT IDENTITY(1, 1) PRIMARY KEY + ,FullPath VARCHAR(8000) + ); + DECLARE @CommandLine VARCHAR(8000); + + SELECT @CommandLine = LEFT('dir "' + @Path + '" /A-D /B /S ', 8000); + + INSERT INTO @MyFiles (FullPath) + EXECUTE xp_cmdshell @CommandLine; + + DELETE + FROM @MyFiles + WHERE FullPath IS NULL + OR FullPath = 'File Not Found' + OR FullPath = 'The system cannot find the path specified.' + OR FullPath = 'The system cannot find the file specified.'; + + --select * from @MyFiles + DECLARE @FullPath VARCHAR(2000); + DECLARE @counter INT = 0 + ,@totalpkgcount INT; + + SELECT @totalpkgcount = COUNT(*) + FROM @MyFiles; + + WHILE @counter <= @totalpkgcount + BEGIN + SELECT @FullPath = FullPath + FROM @MyFiles + WHERE MyID = @counter; + + DECLARE @sql NVARCHAR(max); + + SET @sql = ' + INSERT INTO pkgStats (PackagePath,PackageXML) + select ''@FullPath'' as PackagePath + , cast(BulkColumn as XML) as PackageXML + from openrowset(bulk ''@FullPath'', + single_blob) as pkgColumn'; + + SELECT @sql = REPLACE(@sql, '@FullPath', @FullPath); + + EXEC sp_executesql @sql; + + SET @counter = @counter + 1; + END + -------------------Iterate over all dtsx files from folder------------------------------ + --select * from pkgStats + ------------add package creator name--------------------------- + ; + + WITH CTE_PkgLevel + AS ( + SELECT RowID + ,PackagePath + ,PackageXML.value('declare namespace DTS="www.microsoft.com/SqlServer/Dts"; + /DTS:Executable[1]/@DTS:CreatorName', 'nvarchar(500)') AS PackageCreatorName + ,PackageXML.value('declare namespace DTS="www.microsoft.com/SqlServer/Dts"; + /DTS:Executable[1]/@DTS:ProtectionLevel', 'nvarchar(500)') AS PackageProtectionLevel + FROM pkgStats pkg + ) + UPDATE P + SET PackageCreatorName = C.PackageCreatorName, + PackageProtectionLevel = C.PackageProtectionLevel + FROM pkgStats P + INNER JOIN CTE_PkgLevel C ON P.RowID = C.RowID; + + + ------------add package creator name--------------------------- + PRINT '---------------Get all connections-----------------------------------'; + + WITH CTE_PkgLevel + AS ( + SELECT pkg.RowID + ,pkg.PackagePath + ,cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:ObjectName[1]', 'varchar(max)') AS ConnectionManagerName + ,cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:CreationName[1]', 'varchar(max)') AS ConnectionManagerType + --, cfnodes1.y.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:ConnectionString[1]', 'varchar(max)') + ,cfnodes.x.query('.').query('declare namespace p1="www.microsoft.com/SqlServer/Dts";./p1:ConnectionManager/p1:ObjectData/p1:ConnectionManager') AS ConnectionStringQry + ,cfnodes.x.query('.').query('declare namespace p1="www.microsoft.com/SqlServer/Dts";./p1:ConnectionManager/p1:PropertyExpression') AS ExpressionQry + ,cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:DTSID[1]', 'varchar(100)') AS ConnectionManagerID + ,pkg.PackageCreatorName + + FROM pkgStats pkg + CROSS APPLY pkg.PackageXML.nodes('declare namespace DTS="www.microsoft.com/SqlServer/Dts";(//DTS:Executable/DTS:ConnectionManagers/*)') AS cfnodes(x) + ) + ,CTE_PkgConLevel + AS ( + SELECT pkg.RowID + ,pkg.PackagePath + ,pkg.ConnectionManagerName + ,pkg.ConnectionManagerType + ,ConnectionManagerID + --,pkg.ConnectionStringQry + ,( + SELECT TOP 1 cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";@p1:ConnectionString[1]', 'nvarchar(max)') AS ConnectionString + FROM pkg.ConnectionStringQry.nodes('./*') AS cfnodes(x) + ) AS ConnectionString + ,( + SELECT TOP 1 cfnodes.x.value('.', 'nvarchar(max)') AS ExpressionValue + FROM pkg.ExpressionQry.nodes('./*') AS cfnodes(x) + ) AS ExpressionValue + ,PackageCreatorName + ,( + SELECT TOP 1 cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";@p1:Retain[1]', 'nvarchar(max)') AS RetainSameConnectionProperty + FROM pkg.ConnectionStringQry.nodes('./*') AS cfnodes(x) + ) AS RetainSameConnectionProperty + FROM CTE_PkgLevel pkg + ) + INSERT INTO PackageAnalysis ( + RowID + ,PackagePath + ,PackageName + ,Category + ,PackageCreatorName + ,ObjectName + ,ObjectType + ,DelayValidationPropertyValue + ,ObjectValue + ,ExpressionValue + ,ConnectionManagerID + ,RetainSameConnectionProperty + ) + SELECT DISTINCT pkg.RowID + ,pkg.PackagePath + ,REPLACE(pkg.PackagePath, REPLACE(@Path, '*.dtsx', ''), '') PackageName + ,'Connection' AS CategoryC + ,pkg.PackageCreatorName + ,cast(pkg.ConnectionManagerName AS VARCHAR(max)) AS ObjectName + ,cast(pkg.ConnectionManagerType AS VARCHAR(max)) AS ObjectType + ,'NA' AS DelayValidationPropertyValue + ,cast(pkg.ConnectionString AS VARCHAR(max)) AS ObjectValue + ,cast(ExpressionValue AS VARCHAR(max)) AS ExpressionValue + ,ConnectionManagerID + ,RetainSameConnectionProperty + FROM CTE_PkgConLevel pkg; + + PRINT '---------------Get all connections-----------------------------------'; + PRINT '------------------------Get all variable details-------------------------------------'; + + WITH CTE_PkgLevel + AS ( + SELECT pkg.RowID + ,pkg.PackagePath + ,cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:ObjectName[1]', 'varchar(max)') AS VariableName + ,cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:DTSID[1]', 'varchar(max)') AS VariableHexValue + ,cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:Expression[1]', 'varchar(max)') AS ExpressionValue + ,cfnodes.x.query('.').query('declare namespace p1="www.microsoft.com/SqlServer/Dts";./p1:Variable/p1:VariableValue') AS VariableQry + ,PackageCreatorName + FROM pkgStats pkg + CROSS APPLY pkg.PackageXML.nodes('declare namespace DTS="www.microsoft.com/SqlServer/Dts";(//DTS:Executable/DTS:Variables/*)') AS cfnodes(x) + ) + --select * from CTE_PkgLevel + ,CTE_PkgVarLevel + AS ( + SELECT pkg.RowID + ,pkg.PackagePath + ,pkg.VariableName + ,pkg.ExpressionValue + ,VariableHexValue + ,( + SELECT TOP 1 cfnodes.x.value('.', 'nvarchar(max)') AS VariableValue + FROM pkg.VariableQry.nodes('./*') AS cfnodes(x) + ) AS VariableValue + --,pkg.ConnectionStringQry + ,( + SELECT TOP 1 cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";@p1:DataType[1]', 'nvarchar(max)') AS DataType + FROM pkg.VariableQry.nodes('./*') AS cfnodes(x) + ) AS VariableDataType + ,PackageCreatorName + FROM CTE_PkgLevel pkg + ) + INSERT INTO TblVariableDetails ( + RowID + ,PackagePath + ,PackageName + ,Category + ,PackageCreatorName + ,ObjectName + ,ObjectType + ,ObjectValue + ,ExpressionValue + ,VariableHexValue + ) + SELECT DISTINCT Tblvar.RowID + ,Tblvar.PackagePath + ,REPLACE(Tblvar.PackagePath, REPLACE(@Path, '*.dtsx', ''), '') PackageName + ,'Variable' AS Category + ,Tblvar.PackageCreatorName + ,cast(Tblvar.VariableName AS VARCHAR(max)) AS TaskName + ,cast(Tblvar.VariableDataType AS VARCHAR(max)) AS TaskType + ,isnull(cast(Tblvar.VariableValue AS VARCHAR(max)), '') AS VariableValue + ,isnull(cast(tblvar.ExpressionValue AS VARCHAR(max)), '') ExpressionValue + ,VariableHexValue + FROM CTE_PkgVarLevel Tblvar; + + INSERT INTO PackageAnalysis ( + RowID + ,PackagePath + ,PackageName + ,Category + ,PackageCreatorName + ,ObjectName + ,ObjectType + ,DelayValidationPropertyValue + ,ObjectValue + ,ExpressionValue + ) + SELECT DISTINCT Tblvar.RowID + ,Tblvar.PackagePath + ,PackageName + ,'Variable' AS Category + ,Tblvar.PackageCreatorName + ,ObjectName + ,ObjectType + ,'NA' AS DelayValidationPropertyValue + ,ObjectValue + ,ExpressionValue + FROM TblVariableDetails Tblvar; + + PRINT '------------------------Get all variable details-------------------------------------'; + + PRINT '------------------------Get all parameter details-------------------------------------'; + + WITH CTE_PkgLevel + AS ( + SELECT pkg.RowID + ,pkg.PackagePath + ,cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:ObjectName[1]', 'varchar(max)') AS ParameterName + ,cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:DTSID[1]', 'varchar(max)') AS ParameterHexValue + ,cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:Expression[1]', 'varchar(max)') AS ExpressionValue + ,cfnodes.x.query('.').query('declare namespace p1="www.microsoft.com/SqlServer/Dts";./p1:PackageParameter/p1:Property') AS ParameterQry + ,PackageCreatorName + FROM pkgStats pkg + CROSS APPLY pkg.PackageXML.nodes('declare namespace DTS="www.microsoft.com/SqlServer/Dts";(//DTS:Executable/DTS:PackageParameters/*)') AS cfnodes(x) + ) + --select * from CTE_PkgLevel + ,CTE_PkgVarLevel + AS ( + SELECT pkg.RowID + ,pkg.PackagePath + ,pkg.ParameterName + ,pkg.ExpressionValue + ,ParameterHexValue + ,( + SELECT TOP 1 cfnodes.x.value('.', 'nvarchar(max)') AS ParameterValue + FROM pkg.ParameterQry.nodes('./*') AS cfnodes(x) + ) AS ParameterValue + --,pkg.ConnectionStringQry + ,( + SELECT TOP 1 cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";@p1:DataType[1]', 'nvarchar(max)') AS DataType + FROM pkg.ParameterQry.nodes('./*') AS cfnodes(x) + ) AS ParameterDataType + ,PackageCreatorName + FROM CTE_PkgLevel pkg + ) + INSERT INTO tblParameterDetails( + RowID + ,PackagePath + ,PackageName + ,Category + ,PackageCreatorName + ,ObjectName + ,ObjectType + ,ObjectValue + ,ExpressionValue + ,ParameterHexValue + ) + SELECT DISTINCT Tblvar.RowID + ,Tblvar.PackagePath + ,REPLACE(Tblvar.PackagePath, REPLACE(@Path, '*.dtsx', ''), '') PackageName + ,'Variable' AS Category + ,Tblvar.PackageCreatorName + ,cast(Tblvar.ParameterName AS VARCHAR(max)) AS TaskName + ,cast(Tblvar.ParameterDataType AS VARCHAR(max)) AS TaskType + ,isnull(cast(Tblvar.ParameterValue AS VARCHAR(max)), '') AS ParameterValue + ,isnull(cast(tblvar.ExpressionValue AS VARCHAR(max)), '') ExpressionValue + ,ParameterHexValue + FROM CTE_PkgVarLevel Tblvar; + + INSERT INTO PackageAnalysis ( + RowID + ,PackagePath + ,PackageName + ,Category + ,PackageCreatorName + ,ObjectName + ,ObjectType + ,DelayValidationPropertyValue + ,ObjectValue + ,ExpressionValue + ) + SELECT DISTINCT Tblvar.RowID + ,Tblvar.PackagePath + ,PackageName + ,'Parameter' AS Category + ,Tblvar.PackageCreatorName + ,ObjectName + ,ObjectType + ,'NA' AS DelayValidationPropertyValue + ,ObjectValue + ,ExpressionValue + FROM tblParameterDetails Tblvar; + + PRINT '------------------------Get all parameter details-------------------------------------'; + PRINT '----------------Get precedence constraint details------------------------------'; + + WITH CTE_CFPrec + AS ( + SELECT pkg.RowID + ,pkg.PackagePath + ,cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:From[1]', 'varchar(max)') AS TaskFrom + ,cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:To[1]', 'nvarchar(max)') AS TaskTo + --,dft.x.value('@refId[1]','varchar(max)') + FROM pkgStats pkg + CROSS APPLY pkg.PackageXML.nodes('declare namespace DTS="www.microsoft.com/SqlServer/Dts";//DTS:Executable/DTS:PrecedenceConstraints/*') AS cfnodes(x) + ) + ,CTE_DFTPrec + AS ( + SELECT pkg.RowID + ,pkg.PackagePath + ,cfnodes.x.value('./@startId[1]', 'varchar(max)') AS TaskFrom + ,cfnodes.x.value('./@endId[1]', 'nvarchar(max)') AS TaskTo + --,dft.x.value('@refId[1]','varchar(max)') + FROM pkgStats pkg + CROSS APPLY pkg.PackageXML.nodes('declare namespace DTS="www.microsoft.com/SqlServer/Dts";//DTS:Executable/DTS:ObjectData/pipeline/paths/*') AS cfnodes(x) + ) + INSERT INTO TblPrecedenceConstraint ( + RowID + ,PackagePath + ,TaskFrom + ,Taskto + ,TaskType + ) + SELECT RowID + ,PackagePath + ,TaskFrom + ,TaskTo + ,TaskType + FROM ( + SELECT RowID + ,PackagePath + ,TaskFrom + ,TaskTo + ,'Control Flow' AS TaskType + FROM CTE_CFPrec + + UNION ALL + + SELECT RowID + ,PackagePath + ,substring(TaskFrom, 1, charindex('.', TaskFrom) - 1) AS TaskFrom + ,substring(TaskTo, 1, CHARINDEX('.', TaskTo) - 1) + ,'Data Flow' + FROM CTE_DFTPrec + ) t; + CREATE CLUSTERED INDEX CIX_TblPrecedenceConstraint ON TblPrecedenceConstraint (RowID); + + CREATE NONCLUSTERED INDEX NCIX_TblPrecedenceConstraint ON TblPrecedenceConstraint ( + TaskFrom + ,TaskTo + ); +SELECT DISTINCT RowID,TaskFrom,IsParentLevel,Row_number() OVER ( + PARTITION BY rowid ORDER BY level) level INTO #tempprecedence1 +FROM +( + SELECT distinct t1.Rowid + ,t1.TaskFrom + ,1 AS isparentlevel + , len(t1.TaskFrom) - len(replace(t1.TaskFrom, '\', '')) AS level + + FROM TblPrecedenceConstraint t1 + LEFT JOIN TblPrecedenceConstraint t2 ON t1.rowid = t2.RowID + AND t1.TaskFrom = t2.taskTo + WHERE t2.taskto IS NULL +)T + + + CREATE CLUSTERED INDEX CIX_TblPrecedenceConstraint1 ON #tempprecedence1 (RowID); + + CREATE NONCLUSTERED INDEX NCIX_TblPrecedenceConstraint1 ON #tempprecedence1 (level); + + CREATE TABLE #tempprecedence2 ( + ROWID INT + ,TaskFrom VARCHAR(1000) + ,task VARCHAR(1000) + ,parentlevel INT + ,LEVEL INT + ); + + DECLARE @cntlevel INT + ,@cnt INT = 1; + + SELECT @cntlevel = count(*) + FROM #tempprecedence1; + WHILE @cnt <= @cntlevel + BEGIN + ; + + WITH cte + AS ( + SELECT rowid + ,taskfrom + ,taskfrom AS task + ,LEVEL + ,1 AS cnt + FROM #tempprecedence1 + WHERE LEVEL = @cnt + + UNION ALL + + SELECT c.rowid + ,c.taskfrom + ,t.taskto + ,LEVEL + ,cnt + 1 + FROM TblPrecedenceConstraint t + INNER JOIN cte c ON t.RowID = c.RowID + AND c.task = t.taskfrom + ) + INSERT INTO #tempprecedence2 ( + rowid + ,taskfrom + ,task + ,parentlevel + ,LEVEL + ) + SELECT rowid + ,taskfrom + ,task + ,@cnt + ,cnt + FROM cte; + SELECT @cnt = @cnt + 1; + END + SELECT rowid + ,task + ,parentlevel + ,LEVEL + ,row_number() OVER ( + PARTITION BY rowid ORDER BY parentlevel + ,LEVEL + ) trank + INTO #tempprecedence3 + FROM #tempprecedence2; + CREATE CLUSTERED INDEX CIX_TblPrecedenceConstraint1 ON #tempprecedence3 (RowID); + + CREATE NONCLUSTERED INDEX NCIX_TblPrecedenceConstraint1 ON #tempprecedence3 (task); + SELECT t.rowid + ,isnull(t1.task,t.task) as task + ,t.LEVEL tlevel + ,isnull(max(t1.LEVEL),max(t.level)) level + ,isnull(max(t1.trank),max(t.trank)) trank + INTO #tempprecedence4 + FROM #tempprecedence3 t + LEFT JOIN #tempprecedence3 t1 ON t.rowid = t1.rowid + AND t1.task LIKE '%' + t.task + '\%' + GROUP BY t.rowid + ,t1.task + ,t.task + ,t.LEVEL + --,t1.LEVEL + ORDER BY LEVEL + ,trank; + + + --select t.rowid,t1.task,t.level tlevel,t1.level, (t1.trank) trank into #tempprecedence4 + --from #tempprecedence3 t + --join #tempprecedence3 t1 + --on t.rowid = t1.rowid + --and t1.task like '%'+t.task+'%' + -- order by trank + + SELECT t.rowid + ,t.task + ,replace(replace(replace(( + SELECT tlevel + FROM #tempprecedence4 t1 + WHERE t1.rowid = t.rowid + AND t1.task = t.task + FOR XML path('') + ), '', '/'), '', '/'), '', '') sequenceno,trank + INTO #tempprecedence5 + FROM #tempprecedence4 t + GROUP BY t.rowid + ,t.task + ,t.trank + ORDER BY rowid + ,trank; + + + SELECT rowid,task, sequenceno, cast('/1/'+sequenceno+ cast(trank as varchar)+'/' as hierarchyid)rid into #tempprecedence5_Hierarchy FROM #tempprecedence5 + SELECT rowid + ,task + ,row_number() OVER ( + PARTITION BY rowid ORDER BY rid + ) sequenceno + INTO #tempprecedence6 + FROM #tempprecedence5_Hierarchy; + CREATE CLUSTERED INDEX CIX_TblPrecedenceConstraint1 ON #tempprecedence6 (RowID); + + CREATE NONCLUSTERED INDEX NCIX_TblPrecedenceConstraint1 ON #tempprecedence6 (task); + /* + + select t1.task,t1.parentlevel,t.task as t1,row_number() over(partition by t1.rowid order by t.level) level,t.rowid into #tempprecedence3 + from #tempprecedence2 t + join #tempprecedence2 t1 + on charindex(t.task, t1.taskFrom)>0 + and t1.parentlevel >1 and t.parentlevel =1 + and t.rowid =t1.rowid + order by t.rowid, t1.parentlevel ,t.level + + select rowid, task,row_number() over(partition by rowid order by max(sequenceno)) sequenceno into #tempprecedence4 + from( + select distinct t1.rowid,isnull(t2.task,t1.task) Task,row_number() over(partition by t1.rowid order by t1.parentlevel,t1.level,isnull(t2.level,1)) sequenceno + from #tempprecedence2 t1 + left join #tempprecedence3 t2 + on t1.rowid = t2.rowid + and t1.task = t2.t1 + where t1.parentlevel =1 )t + group by rowid,task + + + */ + PRINT '----------------Get precedence constraint details------------------------------'; + PRINT '----------------Get all Control flow tasks details------------------------------'; + PRINT '----------------Get all data flow tasks details------------------------------'; + + WITH CTE_CFLevel + AS ( + SELECT pkg.RowID + ,cfnodes.x.query('.').query('declare namespace DTS="www.microsoft.com/SqlServer/Dts"; + ./DTS:Executable[@DTS:ExecutableType=''SSIS.Pipeline.3'']/DTS:ObjectData/pipeline/components/component') DFTQuery + ,cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:refId[1]', 'varchar(max)') AS TaskPath + ,cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:ObjectName[1]', 'nvarchar(max)') AS TaskName + ,cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:Description', 'nvarchar(max)') AS TaskTypeDescription + ,cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:ExecutableType', 'nvarchar(max)') AS TaskType + ,cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:DelayValidation', 'nvarchar(max)') AS DelayValidationPropertyValue + ,ISNULL(cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:Disabled', 'nvarchar(max)'), 'False') AS IsDisabled + ,'EvalExpression = ' + cfnodes.x.value('declare namespace p1="www.microsoft.com/SqlServer/Dts";./@p1:EvalExpression', 'nvarchar(max)') AS ForloopEvalExpression + ,cfnodes.x.query('.').query('declare namespace DTS="www.microsoft.com/SqlServer/Dts"; + ./DTS:Executable[@DTS:ExecutableType=''Microsoft.SqlServer.Dts.Tasks.ExecuteSQLTask.ExecuteSQLTask, Microsoft.SqlServer.SQLTask, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91'']/DTS:ObjectData/*') AS SqlTaskQry + ,cfnodes.x.query('.').query('declare namespace DTS="www.microsoft.com/SqlServer/Dts"; + ./DTS:Executable[@DTS:ExecutableType=''SSIS.ExecutePackageTask.3'']/*') ExecPkgTaskQry + ,cfnodes.x.query('.').query('declare namespace DTS="www.microsoft.com/SqlServer/Dts"; + ./DTS:Executable[@DTS:ExecutableType=''Microsoft.SqlServer.Dts.Tasks.ScriptTask.ScriptTask, Microsoft.SqlServer.ScriptTask, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91'']/DTS:ObjectData/ScriptProject/*') ScriptTaskQry + FROM pkgStats pkg + CROSS APPLY pkg.PackageXML.nodes('declare namespace DTS="www.microsoft.com/SqlServer/Dts";//DTS:Executable/DTS:Executables/*') AS cfnodes(x) + ) + INSERT INTO TblControlFlowDetails ( + RowID + ,TaskPath + ,TaskName + ,TaskTypeDescription + ,TaskType + ,DelayValidationPropertyValue + ,DFTQuery + ,SqlTaskQry + ,ExecPkgTaskQry + ,ScriptTaskQry + ,IsDisabled + ,ExpressionValue + ) + SELECT RowID + ,TaskPath + ,TaskName + ,TaskTypeDescription + ,TaskType + ,DelayValidationPropertyValue + ,DFTQuery + ,SqlTaskQry + ,ExecPkgTaskQry + ,ScriptTaskQry + ,IsDisabled + ,ForloopEvalExpression + FROM CTE_CFLevel; + + PRINT '---------- Insert Script task details-----------------------'; + + INSERT INTO TblScriptTaskdetails ( + RowID + ,ControlFlowDetailsRowID + ,Script + ) + SELECT RowID + ,CF.ControlFlowDetailsRowID + ,cfnodes1.x.value('./ProjectItem[@Name=''ScriptMain.cs''][1]', 'varchar(max)') Script + FROM TblControlFlowDetails cf + CROSS APPLY Cf.ScriptTaskQry.nodes('.') AS cfnodes1(x); + + PRINT '---------- Insert Execute package task details-----------------------'; + + INSERT INTO TblExecutePackageTaskDetails ( + RowID + ,ControlFlowDetailsRowID + ,ExecutePackageExpression + ,ExecutedPackageName + ,ExecutePackageConnection + ) + SELECT RowID + ,cf.ControlFlowDetailsRowID + ,cfnodes1.x.value('declare namespace DTS="www.microsoft.com/SqlServer/Dts"; + ./DTS:PropertyExpression[1]', 'varchar(1000)') ExecutePackageExpression + ,cfnodes1.x.value('declare namespace DTS="www.microsoft.com/SqlServer/Dts"; + (./DTS:ObjectData/ExecutePackageTask/PackageName)[1]', 'varchar(1000)') ExecutedPackageName + ,cfnodes1.x.value('declare namespace DTS="www.microsoft.com/SqlServer/Dts"; + (./DTS:ObjectData/ExecutePackageTask/Connection)[1]', 'varchar(1000)') ExecutePackageConnection + FROM TblControlFlowDetails cf + CROSS APPLY Cf.ExecPkgTaskQry.nodes('.') AS cfnodes1(x); + + UPDATE execpkg + SET ExecutePackageConnection = pkg.ObjectValue + FROM TblExecutePackageTaskDetails execpkg + INNER JOIN packageanalysis pkg ON execpkg.RowID = pkg.RowID + AND pkg.category = 'Connection' + AND pkg.ConnectionManagerID = execpkg.ExecutePackageConnection; + + PRINT '---------- Insert Execute SQL task details-----------------------'; + + INSERT INTO TblSQLTaskDetails ( + RowID + ,ControlFlowDetailsRowID + ,ParameterBindingSequence + ,ParameterBindingParameterName + ) + SELECT DISTINCT cf.RowID + ,cf.ControlFlowDetailsRowID + --,cfnodes1.x.value('declare namespace SQLTask="www.microsoft.com/sqlserver/dts/tasks/sqltask"; (./@SQLTask:DtsVariableName)','varchar(1000)') as ResultSetParameterName + ,cfnodes.x.value('declare namespace SQLTask="www.microsoft.com/sqlserver/dts/tasks/sqltask"; (./@SQLTask:ParameterName)', 'varchar(1000)') AS ParameterBindingSequence + ,cfnodes.x.value('declare namespace SQLTask="www.microsoft.com/sqlserver/dts/tasks/sqltask"; (./@SQLTask:DtsVariableName)', 'varchar(1000)') AS ParameterBindingParameterName + FROM TblControlFlowDetails cf + OUTER APPLY Cf.SqlTaskQry.nodes('declare namespace SQLTask="www.microsoft.com/sqlserver/dts/tasks/sqltask";./SQLTask:SqlTaskData/SQLTask:ParameterBinding') AS cfnodes(x) + ORDER BY 1 + ,2 + ,3; + + UPDATE sqltsk + SET ResultSetParameterName = CF.ResultSetParameterName + FROM TblSQLTaskDetails sqltsk + INNER JOIN ( + SELECT DISTINCT cf.RowID + ,cf.ControlFlowDetailsRowID + ,cast(ROW_NUMBER() OVER ( + PARTITION BY cf.ControlFlowDetailsRowID ORDER BY ( + SELECT 1 + ) + ) - 1 AS VARCHAR) rid + ,cfnodes1.x.value('declare namespace SQLTask="www.microsoft.com/sqlserver/dts/tasks/sqltask"; (./@SQLTask:DtsVariableName)', 'varchar(1000)') AS ResultSetParameterName + FROM TblControlFlowDetails cf + OUTER APPLY Cf.SqlTaskQry.nodes('declare namespace SQLTask="www.microsoft.com/sqlserver/dts/tasks/sqltask";./SQLTask:SqlTaskData/SQLTask:ResultBinding') AS cfnodes1(x) + ) CF ON sqltsk.ControlFlowDetailsRowID = CF.ControlFlowDetailsRowID + AND cf.rid = ISNULL(sqltsk.ParameterBindingSequence, 0) + + PRINT '---------- Insert DFT details-----------------------'; + + INSERT INTO TblDFTTaskDetails ( + RowID + ,DFTTasksPath + ,DFTTaskName + ,DFTTaskType + ,DFTTaskType1 + ,DFTRowSet + ,ParameterBindingParameterName + ,DFTSQLCommand + ,DFTConnectionManager + ,Variable + ,IsSortedProperty + ,InputQry + ,OutputQry + ,MultihashcolumnSortPosition + ) + SELECT RowID + ,dftnodes.x.value('@refId[1]', 'varchar(max)') AS DFTTasksPath + ,dftnodes.x.value('@name[1]', 'varchar(max)') AS DFTTaskName + ,dftnodes.x.value('@description[1]', 'varchar(max)') AS DFTTaskType + ,dftnodes.x.value('@contactInfo[1]', 'varchar(max)') AS DFTTaskType1 + ,dftnodes.x.value('data(./properties/property[@name=''OpenRowset''] )[1]', 'varchar(max)') DFTRowSet + ,dftnodes.x.value('data(./properties/property[@name=''ParameterMapping''] )[1]', 'varchar(max)') ParameterBindingParameterName + ,CASE + WHEN isnull(dftnodes.x.value('data(./properties/property[@name=''SqlCommand''])[1]', 'varchar(max)'), '') = '' + THEN isnull(dftnodes.x.value('data(./properties/property[@name=''SqlCommandVariable''])[1]', 'varchar(max)'), '') + ELSE isnull(dftnodes.x.value('data(./properties/property[@name=''SqlCommand''])[1]', 'varchar(max)'), '') + END DFTSQLCommand + ,dftnodes.x.value('data(./connections/connection/@connectionManagerID)[1]', 'varchar(max)') DFTConnectionManager + ,dftnodes.x.value('data(./properties/property[@name=''VariableName''] )[1]', 'varchar(max)') Variable + ,dftnodes.x.value('data(./outputs/output/@isSorted)[1]', 'varchar(10)') IsSortedProperty + + ,lineage.x.query('.') InputQry + ,outputvalue.x.query('.') OutputQry + ,outputvalue.x.value('data(./properties/property[@name=''InputColumnLineageIDs''] )[1]', 'varchar(max)') as MultihashcolumnSortPosition + + FROM TblControlFlowDetails pkglvl + CROSS APPLY pkglvl.DFTQuery.nodes('./*') AS dftnodes(x) + OUTER APPLY dftnodes.x.nodes('./inputs/input/inputColumns/*') AS lineage(x) + OUTER APPLY dftnodes.x.nodes('./outputs/output/outputColumns/*') AS outputvalue(x); + + PRINT '---------- Insert DFT details-----------------------'; + PRINT '---------- Insert DFT Source and destination details-----------------------'; + + INSERT INTO TblSrcDestDetails ( + RowID + ,DataFlowDetailsRowID + ,SourceColumn + ,DestinationColumn + ,SortKeyPosition + ) + SELECT RowID + ,DataFlowDetailsRowID + ,lineage.x.value('./@lineageId[1]', 'varchar(max)') AS SourceColumn + ,COALESCE(lineage.x.value('./@name[1]', 'varchar(max)'),lineage.x.value('./@externalMetadataColumnId[1]', 'varchar(max)'), lineage.x.value('./@refId[1]', 'varchar(max)')) DestinationColumn + ,lineage.x.value('./@sortKeyPosition[1]', 'varchar(200)') SortKeyPosition + + FROM TblDFTTaskDetails pkglvl + CROSS APPLY pkglvl.InputQry.nodes('./*') AS lineage(x); + + INSERT INTO TblSrcDestDetails ( + RowID + ,DataFlowDetailsRowID + ,SourceColumn + ,DestinationColumn + ,SortKeyPosition + ) + SELECT RowID + ,DataFlowDetailsRowID + ,lineage.x.value('./@lineageId[1]', 'varchar(max)') SourceColumn + ,COALESCE(lineage.x.value('./@name[1]', 'varchar(max)'),lineage.x.value('./@externalMetadataColumnId[1]', 'varchar(max)'), lineage.x.value('./@refId[1]', 'varchar(max)')) DestinationColumn + ,lineage.x.value('./@sortKeyPosition[1]', 'varchar(200)') SortKeyPosition + FROM TblDFTTaskDetails pkglvl + CROSS APPLY pkglvl.OutputQry.nodes('./*') AS lineage(x); + + PRINT '---------- Insert DFT Source and destination details-----------------------'; + PRINT '---------- Insert DFT Derived task details-----------------------'; + + INSERT INTO TblDerivedTaskDetails ( + RowID + ,DataFlowDetailsRowID + ,DerivedValue + ,SourceColumn + ,DestinationColumn + ) + SELECT DISTINCT RowID + ,DataFlowDetailsRowID + ,ISNULL(inputvalue.x.value('data(./properties/property[@description =''Derived Column Friendly Expression''])[1]', 'varchar(max)'), inputvalue.x.value('data(./properties/property[@name =''FriendlyExpression''])[1]', 'varchar(max)')) DerivedValue + ,inputvalue.x.value('./@lineageId[1]', 'varchar(max)') SourceColumn + ,inputvalue.x.value('./@refId[1]', 'varchar(max)') DestinationColumn + FROM TblDFTTaskDetails pkglvl + CROSS APPLY pkglvl.InputQry.nodes('./*') AS inputvalue(x) + + UNION ALL + + SELECT DISTINCT RowID + ,DataFlowDetailsRowID + ,ISNULL(outputvalue.x1.value('data(./properties/property[@description =''Derived Column Friendly Expression''])[1]', 'varchar(max)'), outputvalue.x1.value('data(./properties/property[@name =''FriendlyExpression''])[1]', 'varchar(max)')) DerivedValue + ,outputvalue.x1.value('./@lineageId[1]', 'varchar(max)') SourceColumn + ,outputvalue.x1.value('./@refId[1]', 'varchar(max)') DestinationColumn + FROM TblDFTTaskDetails pkglvl + CROSS APPLY pkglvl.OutputQry.nodes('./*') AS outputvalue(x1) + WHERE DFTTASKTYPE1 LIKE '%DERIVED%'; + + PRINT '---------- Insert DFT Derived task details-----------------------'; + PRINT '---------- Insert DFT lookup task details-----------------------'; + + INSERT INTO TblLookupTaskDetails ( + RowID + ,DataFlowDetailsRowID + ,LookupJoins + ,SourceColumn + ,DestinationColumn + ) + SELECT RowID + ,DataFlowDetailsRowID + ,outputvalue.x.value('./@lineageId[1]', 'varchar(max)') + '----->' + outputvalue.x.value('data(./properties/property[@name =''JoinToReferenceColumn''])[1]', 'varchar(max)') LookupJoins + ,outputvalue1.x.value('data(./properties/property[@name =''CopyFromReferenceColumn''])[1]', 'varchar(max)') SourceColumn + ,outputvalue1.x.value('./@refId[1]', 'varchar(max)') DestinationColumn + FROM TblDFTTaskDetails pkglvl + CROSS APPLY pkglvl.InputQry.nodes('./*') AS outputvalue(x) + CROSS APPLY pkglvl.OutputQry.nodes('./*') AS outputvalue1(x) + WHERE DFTTaskType = 'Lookup' + OR DFTTaskType1 LIKE '%Lookup%'; + + DELETE + FROM TblLookupTaskDetails + WHERE DestinationColumn LIKE '%Lookup Error Output%'; + PRINT '---------- Insert DFT lookup task details-----------------------'; + PRINT '---------- Insert DFT details in final table-----------------------'; + + INSERT INTO PackageAnalysis ( + RowID + ,PackagePath + ,PackageName + ,Category + ,PackageCreatorName + ,TaskPath + ,ObjectName + ,ObjectType + ,ObjectTypeDescription + ,DelayValidationPropertyValue + ,ObjectValue + ,ExpressionValue + ,ConnectionManager + ,SourceColumn + ,DestinationColumn + ,DerivedValue + ,Variable + ,LookupJoins + ,ParameterBindingParameterName + ,SortKeyPosition + ,IsSortedProperty + ,MultihashcolumnSortPosition + ) + SELECT DISTINCT dftlvl.RowID + ,Pkg.PackagePath + ,REPLACE(pkg.PackagePath, REPLACE(@Path, '*.dtsx', ''), '') PackageName + ,cast('Data Flow Task' AS VARCHAR(max)) AS Category + ,pkg.PackageCreatorName + ,DFTLVL.DFTTasksPath AS TaskPath + ,DFTTaskName AS TaskName + ,CASE + WHEN cast(CHARINDEX(';', LEFT(DFTTaskType1, 8000)) AS VARCHAR(1000)) BETWEEN 4 + AND 100 + THEN LEFT(cast(DFTTaskType1 AS VARCHAR(8000)), CHARINDEX(';', LEFT(DFTTaskType1, 8000)) - 1) + ELSE DFTTaskType1 + END AS TaskType + ,cast('' AS VARCHAR(max)) AS ObjectTypeDescription + ,'NA' AS DelayValidationPropertyValue + ,CASE + WHEN ISNULL(DFTlvl.DFTSQLCommand, '') <> '' + THEN ISNULL(DFTlvl.DFTSQLCommand, '') + ELSE ISNULL(DFTlvl.DFTRowSet, '') + END AS ConnectionString + ,cast('' AS VARCHAR(max)) AS ExpressionValue + ,DFTConnectionManager AS ConnectionManager + ,ISNULL(Der.SourceColumn, SrcDest.SourceColumn) + ,ISNULL(Der.DestinationColumn, SrcDest.DestinationColumn) + ,Der.DerivedValue + ,Variable + ,Lkup.LookupJoins + ,DFTlvl.ParameterBindingParameterName + ,SrcDest.SortKeyPosition + ,DFTlvl.IsSortedProperty + ,DFTlvl.MultihashcolumnSortPosition + FROM TblDFTTaskDetails DFTlvl + INNER JOIN pkgStats PKG ON DFTlvl.RowID = Pkg.RowID + LEFT JOIN TblSrcDestDetails SrcDest ON DFTlvl.RowID = SrcDest.RowID + AND DFTlvl.DataFlowDetailsRowID = SrcDest.DataFlowDetailsRowID + LEFT JOIN TblDerivedTaskDetails Der ON DFTlvl.RowID = Der.RowID + AND DFTlvl.DataFlowDetailsRowID = Der.DataFlowDetailsRowID + LEFT JOIN TblLookupTaskDetails Lkup ON DFTlvl.RowID = Lkup.RowID + AND DFTlvl.DataFlowDetailsRowID = Lkup.DataFlowDetailsRowID; + + + PRINT '---------- Insert DFT details in final table-----------------------'; + PRINT '-------------Insert control flow details in final table----------'; + + INSERT INTO PackageAnalysis ( + RowID + ,PackagePath + ,PackageName + ,Category + ,PackageCreatorName + ,TaskPath + ,ObjectName + ,ObjectType + ,ObjectTypeDescription + ,DelayValidationPropertyValue + ,ObjectValue + ,ResultSetParameterName + ,ParameterBindingSequence + ,ParameterBindingParameterName + ,ExecutePackageExpression + ,ExecutedPackageName + ,ExecutePackageConnection + ,Script + ,ConnectionManagerID + ,IsDisabled + ,ExpressionValue + ) + SELECT cflvl.RowID + ,Pkg.PackagePath + ,REPLACE(Pkg.PackagePath, REPLACE(@Path, '*.dtsx', ''), '') PackageName + ,cast('Control Flow Task' AS VARCHAR(max)) AS Category + ,Pkg.PackageCreatorName + ,cflvl.TaskPath + ,CAST(cflvl.TaskName AS VARCHAR(max)) AS TaskName + ,CAST(TaskType AS VARCHAR(max)) AS TaskType + ,cast(cflvl.TaskTypeDescription AS VARCHAR(max)) AS ObjectTypeDescription + ,ISNULL(NULLIF(DelayValidationPropertyValue, ''), 'False') DelayValidationPropertyValue + ,( + SELECT TOP 1 cfnodes.x.value('declare namespace SQLTask="www.microsoft.com/sqlserver/dts/tasks/sqltask";@SQLTask:SqlStatementSource[1]', 'nvarchar(max)') AS ConnectionString + FROM cflvl.SqlTaskQry.nodes('./*') AS cfnodes(x) + ) AS ConnectionString + ,SQLTask.ResultSetParameterName + ,SQLTask.ParameterBindingSequence + ,SQLTask.ParameterBindingParameterName + ,ExecPkgTask.ExecutePackageExpression + ,ExecPkgTask.ExecutedPackageName + ,ExecPkgTask.ExecutePackageConnection + ,ScriptTsk.Script + ,( + SELECT TOP 1 cfnodes.x.value('declare namespace SQLTask="www.microsoft.com/sqlserver/dts/tasks/sqltask";@SQLTask:Connection[1]', 'nvarchar(max)') AS ConnectionString + FROM cflvl.SqlTaskQry.nodes('./*') AS cfnodes(x) + ) AS ConnectionString + ,ISNULL(cflvl.IsDisabled, 'False') + ,cflvl.ExpressionValue + FROM TblControlFlowDetails cflvl + INNER JOIN pkgStats PKG ON cflvl.RowID = Pkg.RowID + LEFT JOIN TblSQLTaskDetails SQLTask ON cflvl.RowID = SQLTask.RowID + AND cflvl.ControlFlowDetailsRowID = SQLTask.ControlFlowDetailsRowID + LEFT JOIN TblExecutePackageTaskDetails ExecPkgTask ON cflvl.RowID = ExecPkgTask.RowID + AND cflvl.ControlFlowDetailsRowID = ExecPkgTask.ControlFlowDetailsRowID + LEFT JOIN TblScriptTaskdetails ScriptTsk ON cflvl.RowID = ScriptTsk.RowID + AND cflvl.ControlFlowDetailsRowID = ScriptTsk.ControlFlowDetailsRowID; + + PRINT '-------------Insert control flow details in final table----------'; + PRINT '-------------Insert Connection details in table----------'; + + INSERT INTO ConnectionDetails ( + ConnectionManager + ,ConnectionManagerID + ) + SELECT DISTINCT ObjectName + ,ConnectionManagerID + FROM PackageAnalysis + WHERE Category = 'Connection'; + + PRINT '-------------Insert Connection details in table----------'; + PRINT '-------------Update sequence of task----------'; + + UPDATE PA + SET SequenceNo = TblPrecCon.sequenceno + FROM PackageAnalysis PA + INNER JOIN #tempprecedence6 TblPrecCon ON PA.RowID = TblPrecCon.RowID + AND PA.TaskPath = TblPrecCon.Task; + + --LEFT JOIN @TblPrecedenceConstraint1 TblPrec + --ON Final.RowID = TblPrec.RowID + --AND Final.PackagePath = TblPrec.PackagePath + --AND Final.TaskPath = TblPrec.TaskName + --ORDER BY TblPrec.RowID,TblPrec.PrecOrder + PRINT '--------------------update objecttype-------------------'; + + UPDATE PackageAnalysis + SET ObjectType = 'Sequence Container' + WHERE ObjectType LIKE '%STOCK:SEQUENCE%' + OR ObjectType LIKE '%(Sequence Container)%' + OR ObjectType LIKE '%(Container)%'; + + UPDATE PackageAnalysis + SET ObjectType = 'Data Flow Task' + WHERE ObjectType LIKE 'SSIS.Pipeline.3' + OR ObjectType LIKE '%(Data Flow Task)%'; + + UPDATE PackageAnalysis + SET ObjectType = 'For Loop Container' + WHERE ObjectType LIKE '%(For Loop Container)%' + OR ObjectType LIKE 'STOCK:FORLOOP'; + + UPDATE PackageAnalysis + SET ObjectType = 'Script Task' + WHERE ObjectType LIKE '%(Script Task)%'; + + UPDATE PackageAnalysis + SET ObjectType = 'Execute SQL Task' + WHERE ObjectType LIKE '%(Execute SQL Task)%' + OR ObjectType LIKE '%ExecuteSQLTask%'; + + UPDATE PackageAnalysis + SET ObjectType = 'Execute Package Task' + WHERE ObjectType LIKE '%(Execute Package Task)%' + OR ObjectType LIKE '%ExecutePackageTask%'; + + UPDATE PackageAnalysis + SET ObjectType = 'Foreach Loop Container' + WHERE ObjectType LIKE '%(Foreach Loop Container)%' + OR ObjectType LIKE 'STOCK:FOREACHLOOP'; + + UPDATE PackageAnalysis + SET ObjectType = 'File System Task' + WHERE ObjectType LIKE '%FileSystemTask%'; + + UPDATE PackageAnalysis + SET ObjectType = 'Script Task' + WHERE ObjectType LIKE '%ScriptTask%'; + + UPDATE PackageAnalysis + SET ObjectType = 'Send Mail Task' + WHERE ObjectType LIKE '%SendMailTask%'; + + UPDATE PackageAnalysis + SET ObjectType = 'ADO.NET:System.Data.SqlClient.SqlConnection' + WHERE objecttype = 'ADO.NET:System.Data.SqlClient.SqlConnection, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'; + + UPDATE PackageAnalysis + SET ObjectType = 'ADO.NET:System.Data.Odbc.OdbcConnection' + WHERE objecttype = 'ADO.NET:System.Data.Odbc.OdbcConnection, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'; + + UPDATE PackageAnalysis + SET ObjectType = 'Script Component' + WHERE ObjectType LIKE 'Hosts user-defined data transformations, source and destination adapters' + OR ObjectType = 'Executes a custom script.'; + + UPDATE PackageAnalysis + SET ObjectType = 'INT16' + WHERE objecttype = '2' --OR objecttype = '0' + ; + + UPDATE PackageAnalysis + SET ObjectType = 'INT32' + WHERE objecttype = '3'; + + UPDATE PackageAnalysis + SET ObjectType = 'BYTE' + WHERE objecttype = '17'; + + UPDATE PackageAnalysis + SET ObjectType = 'BOOLEAN' + WHERE objecttype = '11'; + + UPDATE PackageAnalysis + SET ObjectType = 'OBJECT' + WHERE objecttype = '13'; + + UPDATE PackageAnalysis + SET ObjectType = 'STRING' + WHERE objecttype = '8'; + + UPDATE PackageAnalysis + SET ObjectType = 'DOUBLE' + WHERE objecttype = '5'; + + UPDATE PackageAnalysis + SET ObjectType = 'DATETIME' + WHERE objecttype = '7'; + + UPDATE PackageAnalysis + SET ObjectType = 'INT64' + WHERE objecttype = '20'; + + UPDATE PackageAnalysis + SET ObjectType = 'ADO NET Source' + WHERE objecttype = 'Extracts data from a relational database by using a .NET provider.'; + + UPDATE PackageAnalysis + SET ObjectValue = Variable + WHERE objecttype = 'Row count'; + + UPDATE PackageAnalysis + SET PackageAnalysis.ConnectionManager = ConnectionDetails.ConnectionManager + FROM PackageAnalysis + INNER JOIN ConnectionDetails ON PackageAnalysis.ConnectionManagerID = ConnectionDetails.ConnectionManagerID; + + UPDATE PackageAnalysis + SET PackageAnalysis.IsDisabled = ISNULL(IsDisabled, 'False'); + + + DELETE + FROM PackageAnalysis + WHERE SourceColumn LIKE '%OLE DB Source Error Output%' + AND (ObjectType LIKE '%Source%' OR ObjectType LIKE '%Destination%'); + + + DELETE + FROM PackageAnalysis + WHERE SourceColumn LIKE '%Derived Column Error Output%'; + + DECLARE @tblparameters TABLE ( + rowid INT + ,ParameterBindingParameterName VARCHAR(1000) + ,taskpath VARCHAR(2000) + ,SplitParameterBindingParameterName VARCHAR(1000) + ,NewParameterBindingParameterName VARCHAR(1000) + ); + + INSERT INTO @tblparameters ( + rowid + ,ParameterBindingParameterName + ,taskpath + ,SplitParameterBindingParameterName + ) + SELECT DISTINCT rowid + ,ParameterBindingParameterName + ,taskpath + ,O.ParameterBindingParameterNameSplit + FROM ( + SELECT rowid + ,ParameterBindingParameterName + ,taskpath + ,cast('' + replace(ParameterBindingParameterName, ';', '') + '' AS XML) AS ParameterBindingParameterNameSep + FROM PackageAnalysis + WHERE Category = 'Data Flow Task' + AND ParameterBindingParameterName IS NOT NULL + ) F1 + CROSS APPLY ( + SELECT fdata.D.value('.', 'varchar(1000)') AS ParameterBindingParameterNameSplit + FROM f1.ParameterBindingParameterNameSep.nodes('X') AS fdata(D) + ) O + WHERE O.ParameterBindingParameterNameSplit <> ''; + + UPDATE P + SET P.NewParameterBindingParameterName = REPLACE(SplitParameterBindingParameterName, V.VariableHexValue, 'VariableName = ' + V.ObjectName) + ',Value = ' + v.ObjectValue + FROM @tblparameters P + INNER JOIN TblVariableDetails v ON P.Rowid = v.Rowid + AND CHARINDEX(V.VariableHexValue, SplitParameterBindingParameterName) > 0; + + UPDATE p + SET ParameterBindingParameterName = t.NewParameterBindingParameterName + FROM packageanalysis p + INNER JOIN ( + SELECT rowid + ,taskpath + ,ParameterBindingParameterName + ,stuff(( + SELECT ';' + NewParameterBindingParameterName + FROM @tblparameters + WHERE rowid = t.rowid + AND taskpath = t.taskpath + FOR XML PATH('') + ,TYPE + ,ROOT + ).value('root[1]', 'nvarchar(max)'), 1, 1, '') AS NewParameterBindingParameterName + FROM @tblparameters t + ) t ON p.rowid = t.rowid + AND p.taskpath = t.taskpath + AND p.ParameterBindingParameterName = t.ParameterBindingParameterName + + CREATE NONCLUSTERED INDEX NCIX ON PackageAnalysis ( + Rowid + ,SequenceNo + ); + + + + UPDATE pkg + SET PackageSequenceNo = NewTableRowID + FROM PackageAnalysis pkg + JOIN + (SELECT ROW_number() OVER(PARTITION BY RowID ORDER BY ISNULL(SequenceNo,-1)) as NewTableRowID, + SequenceNo , + RowID, + TableRowID + FROM PackageAnalysis ) newpkg + ON pkg.RowID = newpkg.RowID + and pkg.TableRowID = newpkg.TableRowID + + UPDATE pkg + SET PackageProtectionLevel = CASE WHEN Stats.PackageProtectionLevel IS Null THEN 'EncryptSensitiveWithUserKey' + WHEN Stats.PackageProtectionLevel = '0' THEN 'DontSaveSensitive' + WHEN Stats.PackageProtectionLevel = '2' THEN 'EncryptSensitiveWithPassword' + ELSE Stats.PackageProtectionLevel END + FROM PackageAnalysis pkg + JOIN pkgStats Stats + ON pkg.RowID = Stats.RowID + + SELECT + RowID , + PackageSequenceNo , + SequenceNo , + '"'+ PackagePath +'"' PackagePath, + '"'+ PackageName +'"' PackageName, + '"'+ ISNULL(IsDisabled,'') +'"' IsDisabled, + + '"'+ ISNULL(Category ,'') +'"' Category, + '"'+ ISNULL(PackageCreatorName ,'') +'"' PackageCreatorName, + '"'+ ISNULL(PackageProtectionLevel ,'') +'"' PackageProtectionLevel, + '"'+ ISNULL(TaskPath ,'') +'"' TaskPath, + '"'+ ISNULL(ObjectName ,'') +'"' ObjectName, + '"'+ ISNULL(ObjectType ,'') +'"' ObjectType, + '"'+ ISNULL(ObjectTypeDescription ,'') +'"' ObjectTypeDescription, + '"'+ ISNULL(DelayValidationPropertyValue ,'') +'"' DelayValidationPropertyValue, + '"'+ ISNULL(ObjectValue ,'') +'"' ObjectValue, + '"'+ ISNULL(RetainSameConnectionProperty ,'') +'"' RetainSameConnectionProperty, + + '"'+ ISNULL(IsSortedProperty ,'') +'"' IsSortedProperty, + '"'+ ISNULL(ExpressionValue ,'') +'"' ExpressionValue, + '"'+ ISNULL(ConnectionManager ,'') +'"' ConnectionManager, + '"'+ ISNULL(SourceColumn ,'') +'"' SourceColumn, + '"'+ ISNULL(DestinationColumn ,'') +'"' DestinationColumn, + '"'+ ISNULL(SortKeyPosition ,'') +'"' SortKeyPosition, + '"'+ ISNULL(MultihashcolumnSortPosition ,'') +'"' MultihashcolumnSortPosition, + + '"'+ ISNULL(DerivedValue ,'') +'"' DerivedValue, + '"'+ ISNULL(ResultSetParameterName ,'') +'"' ResultSetParameterName, + '"'+ ISNULL(ParameterBindingSequence ,'') +'"' ParameterBindingSequence, + '"'+ ISNULL(ParameterBindingParameterName ,'') +'"' ParameterBindingParameterName, + '"'+ ISNULL(ExecutePackageExpression ,'') +'"' ExecutePackageExpression, + '"'+ ISNULL(ExecutedPackageName ,'') +'"' ExecutedPackageName, + '"'+ ISNULL(ExecutePackageConnection ,'') +'"' ExecutePackageConnection, + '"'+ ISNULL(Script ,'') +'"' Script, + '"'+ ISNULL(Variable ,'') +'"' Variable, + '"'+ ISNULL(LookupJoins ,'') +'"' LookupJoins + FROM PackageAnalysis + ORDER BY 3 + ,1; +END; +GO diff --git a/Stored_Procedure/usp_GetUntrustedForeignKeys.sql b/Stored_Procedure/dbo.usp_GetUntrustedForeignKeys.sql similarity index 97% rename from Stored_Procedure/usp_GetUntrustedForeignKeys.sql rename to Stored_Procedure/dbo.usp_GetUntrustedForeignKeys.sql index 3b946cf8..09cf7dce 100644 --- a/Stored_Procedure/usp_GetUntrustedForeignKeys.sql +++ b/Stored_Procedure/dbo.usp_GetUntrustedForeignKeys.sql @@ -1,94 +1,94 @@ -IF OBJECT_ID('dbo.GetUntrustedForeignKeys', 'P') IS NULL -EXECUTE ('CREATE PROCEDURE dbo.GetUntrustedForeignKeys AS SELECT 1'); -GO - - -ALTER PROCEDURE dbo.GetUntrustedForeignKeys( - @DbName VARCHAR(256) = NULL, - @_NoTempTableDropBefore BIT = 0, - @_NoTempTableDropAtTheEnd BIT = 0, - @_NoSelectOnTempTable BIT = 0 -) -AS -/* -Author: Jefferson Elias -Original link: http://www.sqlshack.com/managing-untrusted-foreign-keys/ -Exapmle: exec dbo.GetUntrustedForeignKeys -*/ -BEGIN - - SET NOCOUNT ON; - - DECLARE @tsql nvarchar(max); -- text to execute via dynamic SQL - DECLARE @CurrentDb VARCHAR(256); - DECLARE @LineFeed CHAR(2); - - SET @LineFeed = CHAR(13) + CHAR(10); - - IF(@_NoTempTableDropBefore = 0 AND OBJECT_ID('tempdb..##UntrustedForeignKeysData') IS NOT NULL) - BEGIN - EXEC sp_executesql N'DROP TABLE ##UntrustedForeignKeysData;'; - END; - - IF(OBJECT_ID('tempdb..#Databases') IS NOT NULL) - BEGIN - exec sp_executesql N'DROP TABLE #Databases'; - END; - - SELECT name - INTO #Databases - FROM sys.databases - WHERE name = isnull(@DbName,name) - ORDER BY name; - - CREATE TABLE ##UntrustedForeignKeysData ( - DbName VARCHAR(256), - SchemaName VARCHAR(256), - TableName VARCHAR(256), - ForeignKeyName VARCHAR(256), - DDL2Resolve AS 'USE ' + QUOTENAME(DbName) + ';' + CHAR(13) + CHAR(10) + - 'PRINT ''' + DbName + '.' + SchemaName + '.' + TableName + '(' + ForeignKeyName + ')'';' + CHAR(13) + CHAR(10)+ - 'ALTER TABLE ' + QUOTENAME(SchemaName) + '.' + QUOTENAME(TableName) + ' WITH CHECK CHECK CONSTRAINT ' + QUOTENAME(ForeignKeyName) + ';' - ); - - SELECT @CurrentDb = MIN(name) FROM #Databases ; - - WHILE (@CurrentDb IS NOT NULL) - BEGIN - PRINT @CurrentDb; - - SET @tsql = 'USE ' + @CurrentDb + ';' + @LineFeed + - 'INSERT INTO ##UntrustedForeignKeysData' + @LineFeed + - 'SELECT DB_NAME(), s.name , o.name,i.name' + @LineFeed + - 'FROM sys.foreign_keys i' + @LineFeed + - 'INNER JOIN sys.objects o ON i.parent_object_id = o.OBJECT_ID' + @LineFeed + - 'INNER JOIN sys.schemas s ON o.schema_id = s.schema_id' + @LineFeed + - 'WHERE i.is_not_trusted = 1' + @LineFeed + - 'AND i.is_not_for_replication = 0' + @LineFeed + - 'AND i.is_disabled = 0' + @LineFeed + - 'ORDER BY o.name ;'; - - exec sp_executesql @tsql; - - SELECT @CurrentDb = MIN(name) FROM #Databases where name > @CurrentDb; - END ; - - IF(OBJECT_ID('tempdb..#Databases') IS NOT NULL) - BEGIN - exec sp_executesql N'DROP TABLE #Databases'; - END; - - IF(@_NoSelectOnTempTable = 0) - BEGIN - SELECT - DbName,SchemaName,TableName,ForeignKeyName,DDL2Resolve - FROM ##UntrustedForeignKeysData; - END; - - IF(@_NoTempTableDropAtTheEnd = 0 AND OBJECT_ID('tempdb..##UntrustedForeignKeysData') IS NOT NULL) - BEGIN - EXEC sp_executesql N'DROP TABLE ##UntrustedForeignKeysData;'; - END; - -END -GO +IF OBJECT_ID('dbo.GetUntrustedForeignKeys', 'P') IS NULL +EXECUTE ('CREATE PROCEDURE dbo.GetUntrustedForeignKeys AS SELECT 1'); +GO + + +ALTER PROCEDURE dbo.GetUntrustedForeignKeys( + @DbName VARCHAR(256) = NULL, + @_NoTempTableDropBefore BIT = 0, + @_NoTempTableDropAtTheEnd BIT = 0, + @_NoSelectOnTempTable BIT = 0 +) +AS +/* +Author: Jefferson Elias +Original link: http://www.sqlshack.com/managing-untrusted-foreign-keys/ +Exapmle: exec dbo.GetUntrustedForeignKeys +*/ +BEGIN + + SET NOCOUNT ON; + + DECLARE @tsql nvarchar(max); -- text to execute via dynamic SQL + DECLARE @CurrentDb VARCHAR(256); + DECLARE @LineFeed CHAR(2); + + SET @LineFeed = CHAR(13) + CHAR(10); + + IF(@_NoTempTableDropBefore = 0 AND OBJECT_ID('tempdb..##UntrustedForeignKeysData') IS NOT NULL) + BEGIN + EXEC sp_executesql N'DROP TABLE ##UntrustedForeignKeysData;'; + END; + + IF(OBJECT_ID('tempdb..#Databases') IS NOT NULL) + BEGIN + exec sp_executesql N'DROP TABLE #Databases'; + END; + + SELECT name + INTO #Databases + FROM sys.databases + WHERE name = isnull(@DbName,name) + ORDER BY name; + + CREATE TABLE ##UntrustedForeignKeysData ( + DbName VARCHAR(256), + SchemaName VARCHAR(256), + TableName VARCHAR(256), + ForeignKeyName VARCHAR(256), + DDL2Resolve AS 'USE ' + QUOTENAME(DbName) + ';' + CHAR(13) + CHAR(10) + + 'PRINT ''' + DbName + '.' + SchemaName + '.' + TableName + '(' + ForeignKeyName + ')'';' + CHAR(13) + CHAR(10)+ + 'ALTER TABLE ' + QUOTENAME(SchemaName) + '.' + QUOTENAME(TableName) + ' WITH CHECK CHECK CONSTRAINT ' + QUOTENAME(ForeignKeyName) + ';' + ); + + SELECT @CurrentDb = MIN(name) FROM #Databases ; + + WHILE (@CurrentDb IS NOT NULL) + BEGIN + PRINT @CurrentDb; + + SET @tsql = 'USE ' + @CurrentDb + ';' + @LineFeed + + 'INSERT INTO ##UntrustedForeignKeysData' + @LineFeed + + 'SELECT DB_NAME(), s.name , o.name,i.name' + @LineFeed + + 'FROM sys.foreign_keys i' + @LineFeed + + 'INNER JOIN sys.objects o ON i.parent_object_id = o.OBJECT_ID' + @LineFeed + + 'INNER JOIN sys.schemas s ON o.schema_id = s.schema_id' + @LineFeed + + 'WHERE i.is_not_trusted = 1' + @LineFeed + + 'AND i.is_not_for_replication = 0' + @LineFeed + + 'AND i.is_disabled = 0' + @LineFeed + + 'ORDER BY o.name ;'; + + exec sp_executesql @tsql; + + SELECT @CurrentDb = MIN(name) FROM #Databases where name > @CurrentDb; + END ; + + IF(OBJECT_ID('tempdb..#Databases') IS NOT NULL) + BEGIN + exec sp_executesql N'DROP TABLE #Databases'; + END; + + IF(@_NoSelectOnTempTable = 0) + BEGIN + SELECT + DbName,SchemaName,TableName,ForeignKeyName,DDL2Resolve + FROM ##UntrustedForeignKeysData; + END; + + IF(@_NoTempTableDropAtTheEnd = 0 AND OBJECT_ID('tempdb..##UntrustedForeignKeysData') IS NOT NULL) + BEGIN + EXEC sp_executesql N'DROP TABLE ##UntrustedForeignKeysData;'; + END; + +END +GO diff --git a/Stored_Procedure/dbo.usp_Kruskal.sql b/Stored_Procedure/dbo.usp_Kruskal.sql new file mode 100644 index 00000000..6e3f8094 --- /dev/null +++ b/Stored_Procedure/dbo.usp_Kruskal.sql @@ -0,0 +1,109 @@ +IF OBJECT_ID (N'dbo.usp_Kruskal', 'P') IS NULL + EXECUTE('CREATE PROCEDURE usp_Kruskal AS SELECT 1'); +GO + +ALTER PROCEDURE dbo.usp_Kruskal +AS +/* +http://www.hansolav.net/sql/graphs.html +Computes a minimum spanning tree using Kruskal's algorithm. + +CREATE TABLE dbo.Node +( + Id int NOT NULL PRIMARY KEY, + Name varchar(50) NULL +) + +CREATE TABLE dbo.Edge +( + FromNode int NOT NULL REFERENCES dbo.Node (Id), + ToNode int NOT NULL REFERENCES dbo.Node (Id), + [Weight] decimal (10, 3) NULL, + PRIMARY KEY CLUSTERED (FromNode ASC, ToNode ASC) +) +*/ +BEGIN + -- Automatically rollback the transaction if something goes wrong. + SET XACT_ABORT ON + BEGIN TRAN + + -- Increase performance and do not intefere with the results. + SET NOCOUNT ON + + CREATE TABLE #MSTNodes(Id int PRIMARY KEY, ClusterNum int) -- Temp table for clusters + CREATE TABLE #MST (FromNode int, ToNode int PRIMARY KEY (FromNode, ToNode)) -- Result accumulator + DECLARE @FromNode int, @ToNode int, -- Start and end point for the current edge + @EdgeCount int = 0, @NodeCount int, -- Edge count along the way, total node count + @FromCluster int, @ToCluster int -- Start and end cluster for the current edge + + -- First, create one cluster for each of the nodes + INSERT #MSTNodes (Id, ClusterNum) + SELECT Id, Id FROM dbo.Node + + -- Get the total node count + SELECT @NodeCount = COUNT(*) FROM #MSTNodes + + -- Get a cursor iterating through all the edges sorted increasing on weight. + DECLARE EdgeCursor CURSOR READ_ONLY FOR + SELECT FromNode, ToNode + FROM dbo.Edge + WHERE FromNode < ToNode -- Don't get self loops, they are not part of the tree. + ORDER BY Weight + OPEN EdgeCursor + + -- Get the first edge + FETCH NEXT FROM EdgeCursor INTO @FromNode, @ToNode + + -- Loop until we have no more edges or we have Nodes - 1 edges (this is enough). + WHILE @@FETCH_STATUS = 0 AND @EdgeCount < @NodeCount - 1 + BEGIN + -- Get the clusters for this edge + SELECT @FromCluster = ClusterNum FROM #MSTNodes WHERE Id = @FromNode + SELECT @ToCluster = ClusterNum FROM #MSTNodes WHERE Id = @ToNode + + -- If the edge ends in different clusters, the edge is safe, so add it to the MST. + IF (@FromCluster <> @ToCluster) + BEGIN + -- Merge the two clusters by updating the cluster number of the "to cluster" to the + -- cluster number of the "from cluster". + UPDATE #MSTNodes + SET ClusterNum = @FromCluster + WHERE ClusterNum = @ToCluster + + -- Insert the edge into the result and increment the edge count + INSERT #MST VALUES (@FromNode, @ToNode) + SET @EdgeCount = @EdgeCount + 1 + END + + -- Get the next edge + FETCH NEXT FROM EdgeCursor INTO @FromNode, @ToNode + END + + -- Close and deallocate the cursor + CLOSE EdgeCursor + DEALLOCATE EdgeCursor + + -- Verify that we have enough edges to connect the whole graph. + IF (SELECT COUNT(*) FROM #MST) < @NodeCount - 1 + BEGIN + DROP TABLE #MSTNodes + DROP TABLE #MST + RAISERROR('Error: The graph is not connected.', 1, 1) + ROLLBACK TRAN + RETURN 1 + END + + -- Select the results. + SELECT mst.FromNode, mst.ToNode, + node1.Name AS FromName, node2.Name AS ToName + FROM #MST mst + JOIN dbo.Node node1 ON mst.FromNode = node1.Id + JOIN dbo.Node node2 ON mst.ToNode = node2.id + ORDER BY mst.FromNode, mst.ToNode + + DROP TABLE #MSTNodes + DROP TABLE #MST + COMMIT TRAN + RETURN 0 +END +GO diff --git a/Stored_Procedure/dbo.usp_LoadTableBlobs.sql b/Stored_Procedure/dbo.usp_LoadTableBlobs.sql new file mode 100644 index 00000000..0dbf931f --- /dev/null +++ b/Stored_Procedure/dbo.usp_LoadTableBlobs.sql @@ -0,0 +1,390 @@ +IF (OBJECT_ID('dbo.usp_LoadTableBlobs') IS NULL) EXEC('CREATE PROCEDURE dbo.usp_LoadTableBlobs AS --') +GO +/* + +Copyright Daniel Hutmacher under Creative Commons 4.0 license with attribution. +http://creativecommons.org/licenses/by/4.0/ + +Source: http://sqlsunday.com/downloads/ + +DISCLAIMER: This script may not be suitable to run in a production + environment. I cannot assume any responsibility regarding + the accuracy of the output information, performance + impacts on your server, or any other consequence. If + your juristiction does not allow for this kind of + waiver/disclaimer, or if you do not accept these terms, + you are NOT allowed to store, distribute or use this + code in any way. + +VERSION: 2016-06-16 + +DESCRIPTION: This procedure will insert a blob of table rows, generated + with SELECT ... FOR XML AUTO into all of the respective tables + referenced. If possible, it will figure out the insert order, + based on foreign key constraints between those tables, and it + also gives you the option of first deleting any existing rows + and/or using IDENTITY_INSERT. + Typical use case: scripting and copying meta-data from multiple + related tables from a production database to a test/dev database. + +USAGE: --- 1. Collect one or more tables' contents as an XML AUTO blob: + DECLARE @xml xml=( + SELECT (SELECT * FROM dbo.A FOR XML AUTO, TYPE), + (SELECT * FROM dbo.B FOR XML AUTO, TYPE), + (SELECT * FROM dbo.C FOR XML AUTO, TYPE) + FOR XML PATH('')); + + --- 2. Then, on the target database (with identical, existing tables), + --- run the procedure, passing the XML blob as argument: + EXECUTE dbo.usp_LoadTableBlobs + @blob=@xml, + @use_identity_insert=0, --- If you need IDENTITY_INSERT ON + @truncate_table=0, --- If you want to empty the target table(s) before inserting + @print_only=0 --- If you want a "dry run" that only prints the T-SQL code + +*/ +ALTER PROCEDURE dbo.usp_LoadTableBlobs + @blob xml=NULL, + @use_identity_insert bit=0, + @truncate_table bit=0, + @print_only bit=0 +AS + +SET NOCOUNT, XACT_ABORT ON; + +IF (@blob IS NULL) BEGIN; + PRINT N'How to use this procedure: + +--- 1. Collect one or more tables'' contents as a XML AUTO blob: +DECLARE @xml xml=( + SELECT (SELECT * FROM dbo.A FOR XML AUTO, TYPE), + (SELECT * FROM dbo.B FOR XML AUTO, TYPE), + (SELECT * FROM dbo.C FOR XML AUTO, TYPE) + FOR XML PATH('''')); + +RETURN; + +--- 2. Then, on the target database (with identical, existing tables), +--- run the procedure, passing the XML blob as argument: +EXECUTE '+OBJECT_SCHEMA_NAME(@@PROCID)+'.'+OBJECT_NAME(@@PROCID)+' + @blob=@xml, + @use_identity_insert=0, --- If you need IDENTITY_INSERT ON + @truncate_table=0, --- If you want to empty the target table(s) before inserting + @print_only=0 --- If you want a "dry run" that only prints the T-SQL code +'; + RETURN; +END; + +DECLARE @table_order TABLE ( + ord int NOT NULL, + [object_id] int NOT NULL, + PRIMARY KEY CLUSTERED (ord) +); + +DECLARE @updates TABLE ( + parent_object_id int NOT NULL, + referenced_object_id int NOT NULL, + [sql] nvarchar(max) NOT NULL, + [index] nvarchar(max) NOT NULL, + PRIMARY KEY CLUSTERED (referenced_object_id, parent_object_id) +); + +DECLARE @msg nvarchar(max), + @offset int, + @sql nvarchar(max)=N'', + @print nvarchar(max); + +--- Check input data for tables that don't exist: +SELECT TOP 1 @msg=N'Could not find a table or view named '+sub.name+N'.'+ + (CASE WHEN sub.name NOT LIKE '%.%' THEN N' All table names in @blob need to include schema.' ELSE N'' END) +FROM ( + SELECT DISTINCT x.n.value('fn:local-name(.)', 'sysname') AS name + FROM @blob.nodes('//*') AS x(n) + ) AS sub +WHERE sub.name NOT IN (SELECT s.name+N'.'+o.name + FROM sys.objects AS o + INNER JOIN sys.schemas AS s ON o.[schema_id]=s.[schema_id] + WHERE o.[type] IN ('U', 'V')); + +IF (@msg IS NOT NULL) BEGIN; + RAISERROR(@msg, 16, 1); + RETURN; +END; + + +--- All tables: +WITH tbl AS ( + SELECT o.[object_id], s.name+'.'+o.name AS name + FROM sys.tables AS o + INNER JOIN sys.schemas AS s ON o.[schema_id]=s.[schema_id]), + +--- All foreign key constraints: +refs AS ( + SELECT DISTINCT fk.parent_object_id, fk.referenced_object_id + FROM sys.foreign_key_columns AS fk + WHERE fk.parent_object_id!=fk.referenced_object_id), + +--- Recurse from referenced tables up to their parents +rcte AS ( + SELECT 1 AS lvl, tbl.[object_id], tbl.name + FROM tbl + WHERE tbl.[object_id] NOT IN (SELECT parent_object_id FROM refs) AND + tbl.[object_id] IN (SELECT referenced_object_id FROM refs) + + UNION ALL + + SELECT 10000 AS lvl, tbl.[object_id], tbl.name + FROM tbl + WHERE tbl.[object_id] NOT IN (SELECT parent_object_id FROM refs) AND + tbl.[object_id] NOT IN (SELECT referenced_object_id FROM refs) + + UNION ALL + + --- Recursion happens here: + SELECT rcte.lvl+1, tbl.[object_id], tbl.name + FROM rcte + INNER JOIN refs ON refs.referenced_object_id=rcte.[object_id] + INNER JOIN tbl ON refs.parent_object_id=tbl.[object_id]) + +INSERT INTO @table_order (ord, [object_id]) +SELECT ROW_NUMBER() OVER (ORDER BY MAX(lvl)) AS ord, [object_id] +FROM rcte +WHERE name IN ( + --- These are the distinct element names in the blob, i.e. + --- a list of all the table names: + SELECT DISTINCT x.n.value('fn:local-name(.)', 'sysname') + FROM @blob.nodes('//*') AS x(n)) +GROUP BY [object_id]; + +--- Generate dynamic T-SQL code to create the temp tables: +------------------------------------------------------------------------------- +SELECT @sql=@sql+ + (CASE WHEN LAG(c.column_id, 1, 0) OVER (PARTITION BY x.ord ORDER BY c.column_id)=0 THEN N' +--- Worker table for '+s.name+N'.'+o.name+N' +SELECT' + + ELSE ',' END)+' + t.r.value(''@'+REPLACE(c.name, ' ', '_')+N''', '''+t.name+(CASE + WHEN t.name LIKE 'n%char' OR t.name LIKE 'n%binary' THEN N'('+ISNULL(CAST(NULLIF(c.max_length, -1)/2 AS varchar(10)), N'max')+N')' + WHEN t.name LIKE '%char' OR t.name LIKE '%binary' THEN N'('+ISNULL(CAST(NULLIF(c.max_length, -1) AS varchar(10)), N'max')+N')' + WHEN t.name IN ('datetime2' ,'time', 'datetimeoffset') THEN N'('+CAST(c.scale AS varchar(10))+N')' + WHEN t.name IN ('decimal', 'numeric') THEN N'('+CAST(c.[precision] AS varchar(10))+N', '+CAST(c.scale AS varchar(10))+N')' + ELSE N'' END)+N''') AS ['+c.name+']' + + +(CASE WHEN LEAD(c.column_id, 1, 0) OVER (PARTITION BY x.ord ORDER BY c.column_id)=0 THEN N' +INTO + [#'+s.name+N'.'+o.name+'] +FROM + @xml.nodes(''/'+s.name+N'.'+o.name+N''') AS t(r); +' ELSE '' END) +FROM sys.schemas AS s +INNER JOIN sys.objects AS o ON s.[schema_id]=o.[schema_id] +LEFT JOIN sys.identity_columns AS id ON o.[object_id]=id.[object_id] +INNER JOIN sys.columns AS c ON o.[object_id]=c.[object_id] +INNER JOIN sys.types AS t ON c.system_type_id=t.user_type_id +INNER JOIN @table_order AS x ON o.[object_id]=x.[object_id] +ORDER BY x.ord, c.column_id; + +--- Build dynamic T-SQL to map inserted identity values to any +--- dependent (referencing) target tables: +------------------------------------------------------------------------------- + +IF (@use_identity_insert=0) BEGIN; + WITH cols AS ( + SELECT fk.parent_object_id, pc.name AS parent_column, fk.referenced_object_id, rc.name AS referenced_identity_column + FROM @table_order AS p + INNER JOIN sys.columns AS pc ON p.[object_id]=pc.[object_id] + INNER JOIN sys.foreign_key_columns AS fk ON pc.[object_id]=fk.parent_object_id AND pc.column_id=fk.parent_column_id + INNER JOIN @table_order AS r ON fk.referenced_object_id=r.[object_id] + INNER JOIN sys.identity_columns AS rc ON fk.referenced_object_id=rc.[object_id] AND fk.referenced_column_id=rc.column_id), + + natural_keys AS ( + SELECT x.[object_id], SUBSTRING(CAST( + (SELECT (CASE is_nullable + WHEN 1 THEN N' AND (old.['+name+N']=new.['+name+N'] OR old.['+name+N'] IS NULL AND new.['+name+N'] IS NULL)' + WHEN 0 THEN N' AND old.['+name+N']=new.['+name+N']' + END) + FROM ( + SELECT [object_id], index_id, name, is_nullable, + DENSE_RANK() OVER (PARTITION BY [object_id] ORDER BY column_count, index_id) AS prio + FROM ( + SELECT i.[object_id], i.index_id, c.name, c.is_nullable, + SIGN(MAX(ISNULL(id.column_id, 0)) OVER (PARTITION BY i.[object_id], i.index_id)) AS includes_identity, + COUNT(*) OVER (PARTITION BY i.[object_id], i.index_id) AS column_count + FROM @table_order AS x + INNER JOIN sys.indexes AS i ON x.[object_id]=i.[object_id] + INNER JOIN sys.index_columns AS ic ON i.[object_id]=ic.[object_id] AND i.index_id=ic.index_id AND ic.is_included_column=0 + INNER JOIN sys.columns AS c ON ic.[object_id]=c.[object_id] AND ic.column_id=c.column_id + LEFT JOIN sys.identity_columns AS id ON i.[object_id]=id.[object_id] AND ic.column_id=id.column_id + WHERE i.is_unique=1 AND i.has_filter=0 AND i.is_disabled=0 + ) AS sub + WHERE includes_identity=0 + ) AS sub + WHERE prio=1 AND [object_id]=x.[object_id] + FOR XML PATH(''), TYPE) AS nvarchar(max)), 6, 10000) AS [join], SUBSTRING(CAST( + (SELECT N', ['+name+N']' + FROM ( + SELECT [object_id], index_id, name, is_nullable, + DENSE_RANK() OVER (PARTITION BY [object_id] ORDER BY column_count, index_id) AS prio + FROM ( + SELECT i.[object_id], i.index_id, c.name, c.is_nullable, + SIGN(MAX(ISNULL(id.column_id, 0)) OVER (PARTITION BY i.[object_id], i.index_id)) AS includes_identity, + COUNT(*) OVER (PARTITION BY i.[object_id], i.index_id) AS column_count + FROM @table_order AS x + INNER JOIN sys.indexes AS i ON x.[object_id]=i.[object_id] + INNER JOIN sys.index_columns AS ic ON i.[object_id]=ic.[object_id] AND i.index_id=ic.index_id AND ic.is_included_column=0 + INNER JOIN sys.columns AS c ON ic.[object_id]=c.[object_id] AND ic.column_id=c.column_id + LEFT JOIN sys.identity_columns AS id ON i.[object_id]=id.[object_id] AND ic.column_id=id.column_id + WHERE i.is_unique=1 AND i.has_filter=0 AND i.is_disabled=0 + ) AS sub + WHERE includes_identity=0 + ) AS sub + WHERE prio=1 AND [object_id]=x.[object_id] + FOR XML PATH(''), TYPE) AS nvarchar(max)), 3, 10000) AS index_cols + FROM @table_order AS x) + + INSERT INTO @updates (parent_object_id, referenced_object_id, [sql], [index]) + SELECT cols.parent_object_id, cols.referenced_object_id, N' + UPDATE t + SET t.['+cols.parent_column+N']=new.['+cols.referenced_identity_column+N'] + FROM [#'+ps.name+N'.'+p.name+N'] AS t + INNER JOIN [#'+rs.name+N'.'+r.name+N'] AS old ON t.['+cols.parent_column+N']=old.['+cols.referenced_identity_column+N'] + INNER JOIN '+rs.name+N'.'+r.name+N' AS new ON '+nk.[join]+N'; +' AS [sql], N'CREATE UNIQUE CLUSTERED INDEX NK ON [#'+rs.name+N'.'+r.name+N'] ('+nk.index_cols+N');' + FROM natural_keys AS nk + INNER JOIN cols AS cols ON cols.referenced_object_id=nk.[object_id] + INNER JOIN sys.objects AS p ON cols.parent_object_id=p.[object_id] + INNER JOIN sys.schemas AS ps ON p.[schema_id]=ps.[schema_id] + INNER JOIN sys.objects AS r ON cols.referenced_object_id=r.[object_id] + INNER JOIN sys.schemas AS rs ON r.[schema_id]=rs.[schema_id] + WHERE nk.[join] IS NOT NULL; + + --- Sanity check: + SELECT TOP 1 @msg='Error: There is no unique index on non-identity column(s) in table '+s.name+'.'+o.name+'. The table has an identity column as a primary key, which is referenced by one or more foreign key constraints. The procedure needs this information to map the inserted IDENTITY column ids. Add a unique index on a natural key in '+s.name+'.'+o.name+' OR set @use_identity_insert=1.' + FROM @table_order AS p + INNER JOIN sys.columns AS pc ON p.[object_id]=pc.[object_id] + INNER JOIN sys.foreign_key_columns AS fk ON pc.[object_id]=fk.parent_object_id AND pc.column_id=fk.parent_column_id + INNER JOIN @table_order AS r ON fk.referenced_object_id=r.[object_id] + INNER JOIN sys.identity_columns AS rc ON fk.referenced_object_id=rc.[object_id] AND fk.referenced_column_id=rc.column_id + INNER JOIN sys.objects AS o ON r.[object_id]=o.[object_id] + INNER JOIN sys.schemas AS s ON o.[schema_id]=s.[schema_id] + LEFT JOIN @updates AS u ON u.parent_object_id=fk.parent_object_id AND u.referenced_object_id=fk.referenced_object_id + WHERE u.parent_object_id IS NULL; + + IF (@msg IS NOT NULL) BEGIN; + RAISERROR(@msg, 16, 1); + RETURN; + END; + +END; + +--- Create indexes on the temp tables: +------------------------------------------------------------------------------- +SELECT @sql=@sql+N' +--- Unique index on natural key, used to look up IDENTITY values. +'+[index]+N' +' +FROM ( + SELECT DISTINCT [index] + FROM @updates + ) AS sub; + +--- Begin transaction: +------------------------------------------------------------------------------- +SET @sql=@sql+N' + + +BEGIN TRANSACTION; +'; + +--- T-SQL code to delete existing rows from target tables: +------------------------------------------------------------------------------- +IF (@truncate_table=1) + SELECT @sql=@sql+N' + --- Delete any rows in '+s.name+N'.'+o.name+N' + DELETE FROM '+s.name+N'.'+o.name+'; + + PRINT ''Deleted ''+CAST(@@ROWCOUNT AS varchar(10))+'' row(s) from table '+s.name+N'.'+o.name+N'.''; +' + FROM sys.schemas AS s + INNER JOIN sys.objects AS o ON s.[schema_id]=o.[schema_id] + INNER JOIN @table_order AS x ON o.[object_id]=x.[object_id] + ORDER BY x.ord DESC; + +--- T-SQL code to a) insert rows into target tables, then b) map inserted +--- identity values to referencing target tables: +------------------------------------------------------------------------------- + +SELECT @sql=@sql+ + (CASE WHEN p.pass=1 AND LAG(c.column_id, 1, 0) OVER (PARTITION BY x.ord, p.pass ORDER BY c.column_id)=0 THEN N' + --- '+s.name+N'.'+o.name+N':'+(CASE WHEN @use_identity_insert=1 AND id.[object_id] IS NOT NULL THEN N' + SET IDENTITY_INSERT '+s.name+N'.'+o.name+N' ON; +' ELSE N'' END)+N' + INSERT INTO '+s.name+N'.'+o.name+N' (' + WHEN p.pass=2 AND LAG(c.column_id, 1, 0) OVER (PARTITION BY x.ord, p.pass ORDER BY c.column_id)=0 THEN N' + SELECT ' + WHEN p.pass=3 AND LAG(c.column_id, 1, 0) OVER (PARTITION BY x.ord, p.pass ORDER BY c.column_id)=0 THEN ISNULL(N' + --- Target tables that directly reference '+s.name+N'.'+o.name+N':'+REPLACE(CAST(( + + SELECT [sql]+N'' + FROM @updates AS upd_sql + WHERE upd_sql.referenced_object_id=o.[object_id] + FOR XML PATH(''), TYPE) AS varchar(max)), N' ', N''), N'') + + WHEN p.pass=3 THEN N'' + + ELSE ', ' END)+ + + (CASE WHEN p.pass IN (1, 2) THEN N'['+c.name+N']' + ELSE N'' END)+ + + (CASE WHEN p.pass=1 AND LEAD(c.column_id, 1, 0) OVER (PARTITION BY x.ord, p.pass ORDER BY c.column_id)=0 THEN N')' + WHEN p.pass=2 AND LEAD(c.column_id, 1, 0) OVER (PARTITION BY x.ord, p.pass ORDER BY c.column_id)=0 THEN N' + FROM [#'+s.name+N'.'+o.name+N']; + + PRINT ''Inserted ''+CAST(@@ROWCOUNT AS varchar(10))+'' row(s) in table '+s.name+N'.'+o.name+N'.'';'+ + (CASE WHEN @use_identity_insert=1 AND id.[object_id] IS NOT NULL THEN N' + + SET IDENTITY_INSERT '+s.name+N'.'+o.name+N' OFF; +' ELSE N'' + END)+N' +' ELSE '' END) + +FROM sys.schemas AS s +INNER JOIN sys.objects AS o ON s.[schema_id]=o.[schema_id] +INNER JOIN sys.columns AS c ON o.[object_id]=c.[object_id] +LEFT JOIN sys.identity_columns AS id ON c.[object_id]=id.[object_id] +INNER JOIN @table_order AS x ON o.[object_id]=x.[object_id] +CROSS APPLY (VALUES (1), (2), (3)) AS p(pass) +WHERE @use_identity_insert=1 AND p.pass IN (1, 2) OR + @use_identity_insert=0 AND c.column_id!=ISNULL(id.column_id, 0) +ORDER BY x.ord, p.pass; + + +--- Ready to run: +------------------------------------------------------------------------------- + +SET @sql=@sql+N' +COMMIT TRANSACTION;'; + + + +--- Sharing is caring: here's the T-SQL code: +SET @print=@sql; +WHILE (@print!='') BEGIN; + SET @offset=4000-CHARINDEX(' +', REVERSE(LEFT(@print, 4000))); + + PRINT LEFT(@print, @offset); + SET @print=SUBSTRING(@print, @offset+1, LEN(@print)); +END; + + + +--- The big-time: +IF (@print_only=0) + EXECUTE sys.sp_executesql @sql, N'@xml xml', @xml=@blob; + + + +GO diff --git a/Stored_Procedure/usp_LogError.sql b/Stored_Procedure/dbo.usp_LogError.sql similarity index 100% rename from Stored_Procedure/usp_LogError.sql rename to Stored_Procedure/dbo.usp_LogError.sql diff --git a/Stored_Procedure/dbo.usp_MonitorIdentityColumn.sql b/Stored_Procedure/dbo.usp_MonitorIdentityColumn.sql new file mode 100644 index 00000000..7f521b04 --- /dev/null +++ b/Stored_Procedure/dbo.usp_MonitorIdentityColumn.sql @@ -0,0 +1,68 @@ +IF OBJECT_ID('dbo.usp_MonitorIdentityColumn', 'P') IS NULL +EXECUTE('CREATE PROCEDURE dbo.usp_MonitorIdentityColumn as SELECT 1'); +GO + + +ALTER PROCEDURE dbo.usp_MonitorIdentityColumn ( + @databaseName SYSNAME + , @schemaMask SYSNAME = NULL + , @tableMask SYSNAME = NULL + , @debug BIT = 0 +) +AS +/* +EXECUTE dbo.usp_MonitorIdentityColumn + @databaseName = 'YourDatabase' + , @schemaMask = '%YourMask%' + , @tableMask = '%YourMask%' +*/ +SET NOCOUNT ON; + +BEGIN TRY +DECLARE @tsqlCommand NVARCHAR(MAX) = N''; +DECLARE @ParamDefinitionIndentity NVARCHAR(500) = N'@DabataseNameIN SYSNAME'; + +SET @tsqlCommand = N' +USE ' + @databaseName + '; + +DECLARE @DataTypeValue AS TABLE (DataType VARCHAR(50), MinValue BIGINT, MaxValue BIGINT); + +INSERT INTO @DataTypeValue VALUES + (''tinyint'', 0, 255), + (''smallint'', -32768, 32767), + (''int'', -2147483648, 2147483647), + (''bigint'', -9223372036854775808, 9223372036854775807); + +SELECT DISTINCT SS.name AS SchemaName + , TN.name AS TableName + , IC.name AS ColumnName + , TYPE_NAME(IC.system_type_id) AS ColumnDataType + , DTM.MinValue AS MinDataTypeValue + , DTM.MaxValue AS MaxDataTypeValue + , IC.seed_value IdentitySeed + , IC.increment_value AS IdentityIncrement + , IC.last_value AS LastIdentityValue + , DBPS.row_count AS NumberOfRows + , (CONVERT(decimal(9,7), CONVERT(bigint,IC.last_value) * 100 / DTM.MaxValue)) AS ReachMaxValuePercent + FROM sys.identity_columns IC + INNER JOIN sys.tables TN ON IC.object_id = TN.object_id + INNER JOIN sys.schemas SS ON TN.schema_id = SS.schema_id + INNER JOIN @DataTypeValue DTM ON TYPE_NAME(IC.system_type_id)=DTM.DataType + INNER JOIN sys.dm_db_partition_stats DBPS ON DBPS.object_id =IC.object_id + INNER JOIN sys.indexes as IDX ON DBPS.index_id =IDX.index_id +WHERE DBPS.row_count > 0 AND TN.name LIKE ''' + ISNULL(@tableMask, '%') + ''' + AND SS.name LIKE ''' + ISNULL(@schemaMask, '%') + ''' +ORDER BY ReachMaxValuePercent DESC; +'; + +IF @debug = 1 PRINT @tsqlCommand +ELSE +EXECUTE sp_executesql @tsqlCommand; + +END TRY + +BEGIN CATCH + EXECUTE dbo.usp_LogError; + EXECUTE dbo.usp_PrintError; +END CATCH; +GO diff --git a/Stored_Procedure/usp_Object_Search.sql b/Stored_Procedure/dbo.usp_Object_Search.sql similarity index 100% rename from Stored_Procedure/usp_Object_Search.sql rename to Stored_Procedure/dbo.usp_Object_Search.sql diff --git a/Stored_Procedure/dbo.usp_Prim.sql b/Stored_Procedure/dbo.usp_Prim.sql new file mode 100644 index 00000000..649a1197 --- /dev/null +++ b/Stored_Procedure/dbo.usp_Prim.sql @@ -0,0 +1,101 @@ +IF OBJECT_ID (N'dbo.usp_Prim', 'P') IS NULL + EXECUTE('CREATE PROCEDURE usp_Prim AS SELECT 1'); +GO + +ALTER PROCEDURE dbo.usp_Prim +AS +/* +http://www.hansolav.net/sql/graphs.html +Computes a minimum spanning tree using Prim's algorithm. + +CREATE TABLE dbo.Node +( + Id int NOT NULL PRIMARY KEY, + Name varchar(50) NULL +) + +CREATE TABLE dbo.Edge +( + FromNode int NOT NULL REFERENCES dbo.Node (Id), + ToNode int NOT NULL REFERENCES dbo.Node (Id), + [Weight] decimal (10, 3) NULL, + PRIMARY KEY CLUSTERED (FromNode ASC, ToNode ASC) +) +*/ +BEGIN + -- Automatically rollback the transaction if something goes wrong. + SET XACT_ABORT ON + BEGIN TRAN + + -- Increase performance and don't intefere with the results. + SET NOCOUNT ON; + + -- Create a temporary table for storing the estimates as the algorithm runs + CREATE TABLE #Nodes + ( + Id int NOT NULL PRIMARY KEY, -- The Node Id + Estimate decimal(10,3) NOT NULL, -- What is the distance to this node, so far? + Predecessor int NULL, -- The node we came from to get to this node with this distance. + Done bit NOT NULL -- Are we done with this node yet (is the estimate the final distance)? + ) + + -- Fill the temporary table with initial data + INSERT INTO #Nodes (Id, Estimate, Predecessor, Done) + SELECT Id, 9999999.999, NULL, 0 FROM dbo.Node + + -- Set the estimate for start node to be 0. + UPDATE TOP (1) #Nodes SET Estimate = 0 + + DECLARE @FromNode int + + -- Run the algorithm until we decide that we are finished + WHILE 1 = 1 + BEGIN + -- Reset the variable, so we can detect getting no records in the next step. + SELECT @FromNode = NULL + + -- Select the Id for a node not done, with the lowest estimate. + SELECT TOP 1 @FromNode = Id + FROM #Nodes WHERE Done = 0 AND Estimate < 9999999.999 + ORDER BY Estimate + + -- Stop if we have no more unvisited, reachable nodes. + IF @FromNode IS NULL BREAK + + -- We are now done with this node. + UPDATE #Nodes SET Done = 1 WHERE Id = @FromNode + + -- Update the estimates to all neighbour nodes of this one (all the nodes + -- there are edges to from this node). Only update the estimate if the new + -- proposal (to go via the current node) is better (lower). + UPDATE #Nodes + SET Estimate = e.Weight, Predecessor = @FromNode + FROM #Nodes n INNER JOIN dbo.Edge e ON n.Id = e.ToNode + WHERE Done = 0 AND e.FromNode = @FromNode AND e.Weight < n.Estimate + + END + + -- Verify that we have enough edges to connect the whole graph. + IF EXISTS (SELECT TOP 1 1 FROM #Nodes WHERE Done = 0) + BEGIN + DROP TABLE #Nodes + RAISERROR('Error: The graph is not connected.', 1, 1) + ROLLBACK TRAN + RETURN 1 + END + + -- Select the results. WHERE Predecessor IS NOT NULL filters away + -- the one row with represents the starting node. + SELECT n.Predecessor AS FromNode, n.Id AS ToNode, + node1.Name AS FromName, node2.Name AS ToName + FROM #Nodes n + JOIN dbo.Node node1 ON n.Predecessor = node1.Id + JOIN dbo.Node node2 ON n.Id = node2.id + WHERE n.Predecessor IS NOT NULL + ORDER BY n.Predecessor, n.id + + DROP TABLE #Nodes + COMMIT TRAN + RETURN 0 +END +GO diff --git a/Stored_Procedure/usp_PrintDebug.sql b/Stored_Procedure/dbo.usp_PrintDebug.sql similarity index 100% rename from Stored_Procedure/usp_PrintDebug.sql rename to Stored_Procedure/dbo.usp_PrintDebug.sql diff --git a/Stored_Procedure/usp_PrintError.sql b/Stored_Procedure/dbo.usp_PrintError.sql similarity index 100% rename from Stored_Procedure/usp_PrintError.sql rename to Stored_Procedure/dbo.usp_PrintError.sql diff --git a/Stored_Procedure/usp_RandomWait.sql b/Stored_Procedure/dbo.usp_RandomWait.sql similarity index 100% rename from Stored_Procedure/usp_RandomWait.sql rename to Stored_Procedure/dbo.usp_RandomWait.sql diff --git a/Stored_Procedure/usp_RunCheckAllUntrustedForeignKeys.sql b/Stored_Procedure/dbo.usp_RunCheckAllUntrustedForeignKeys.sql similarity index 97% rename from Stored_Procedure/usp_RunCheckAllUntrustedForeignKeys.sql rename to Stored_Procedure/dbo.usp_RunCheckAllUntrustedForeignKeys.sql index e7a6bd76..4600ca2f 100644 --- a/Stored_Procedure/usp_RunCheckAllUntrustedForeignKeys.sql +++ b/Stored_Procedure/dbo.usp_RunCheckAllUntrustedForeignKeys.sql @@ -1,210 +1,210 @@ -IF OBJECT_ID('dbo.RunCheckUntrustedForeignKeys', 'P') IS NULL -EXECUTE ('CREATE PROCEDURE dbo.RunCheckUntrustedForeignKeys AS SELECT 1'); -GO - - -ALTER PROCEDURE dbo.RunCheckUntrustedForeignKeys( - @DbName VARCHAR(256) = NULL -) -AS -/* -Author: Jefferson Elias -Original link: http://www.sqlshack.com/managing-untrusted-foreign-keys/ -Depends: usp_GetUntrustedForeignKeys -Exapmle: exec dbo.RunCheckUntrustedForeignKeys -*/ -BEGIN - - SET NOCOUNT ON; - - -- general purpose variables - DECLARE @tsql nvarchar(max); -- text to execute via dynamic SQL - DECLARE @LineFeed CHAR(2); - DECLARE @DbLoggerExists BIT; - DECLARE @ErrorLogMsg VARCHAR(MAX); - DECLARE @ProcDbId INT; - DECLARE @CorrectedCount INT; - DECLARE @FailedCount INT; - DECLARE @ErrorNumber INT = ERROR_NUMBER(); - DECLARE @ErrorLine INT = ERROR_LINE(); - DECLARE @ErrorMessage NVARCHAR(4000) = ERROR_MESSAGE(); - DECLARE @ErrorSeverity INT = ERROR_SEVERITY(); - DECLARE @ErrorState INT = ERROR_STATE(); - - -- procedure-sepecific variables - DECLARE @CurrentDb VARCHAR(256); - DECLARE @CurrentSchemaName VARCHAR(256); - DECLARE @CurrentTableName VARCHAR(256); - DECLARE @CurrentForeignKeyName VARCHAR(256); - - -- initial settings - SELECT - @ProcDbId = DB_ID(), - @LineFeed = CHAR(13) + CHAR(10) , - @CorrectedCount = 0, - @FailedCount = 0 - ; - - -- Logging execution - SELECT - @DbLoggerExists = 1 - FROM sys.objects - WHERE object_id = OBJECT_ID(N'[Common].[LogMessage]') AND type in (N'P') ; - - if(@DbLoggerExists is not null) - BEGIN - SET @ErrorLogMsg = 'Procedure started'; - SET @tsql = 'exec [Common].[LogMessage] @ApplicationName = ''$(SolutionName)'',@LogLevel = ''INFO'',@DatabaseID = @DbID,@ObjectID = @ObjID,@LogMessage = @ErrorLogMsg' ; - exec sp_executesql @tsql, N'@ObjID INT,@ErrorLogMsg VARCHAR(max), @DbID INT',@ObjID=@@PROCID,@ErrorLogMsg =@ErrorLogMsg ,@DbID = @ProcDbId; - END; - ELSE - BEGIN - PRINT 'Starting procedure ' + OBJECT_NAME(@@PROCID); - END; - - IF(OBJECT_ID('tempdb..##UntrustedForeignKeysData') IS NOT NULL) - BEGIN - EXEC sp_executesql N'DROP TABLE ##UntrustedForeignKeysData;'; - END; - - BEGIN TRY - - -- building the list of untrusted foreign key based on parameters - - exec dbo.GetUntrustedForeignKeys @DbName = @DbName, @_NoTempTableDropAtTheEnd = 1 , @_NoSelectOnTempTable = 1; - - -- Now let's loop and try to resolve untrusted foreign keys. - - DECLARE GetFKs CURSOR LOCAL FOR - SELECT - DbName,SchemaName,TableName,ForeignKeyName,DDL2Resolve - FROM ##UntrustedForeignKeysData - ; - - OPEN GetFKs; - - FETCH NEXT FROM GetFKs INTO @CurrentDb,@CurrentSchemaName,@CurrentTableName,@CurrentForeignKeyName,@tsql; - - WHILE @@FETCH_STATUS = 0 - BEGIN - BEGIN TRY - - -- run the corrective query - exec sp_executesql @tsql; - - -- log its success - SET @ErrorLogMsg = 'Foreign key ' + QUOTENAME(@CurrentForeignKeyName) + ' on table ' + QUOTENAME(@CurrentDb) + '.' + QUOTENAME(@CurrentSchemaName) + '.' + QUOTENAME(@CurrentTableName) + ' checked successfully.'; - - if(@DbLoggerExists = 1) - BEGIN - SET @tsql = 'exec [Common].[LogMessage] @ApplicationName = ''$(SolutionName)'',@LogLevel = ''INFO'',@DatabaseID = @DbID,@ObjectID = @ObjID,@LogMessage = @ErrorLogMsg' ; - exec sp_executesql @tsql, N'@ObjID INT,@ErrorLogMsg VARCHAR(max),@DbID INT',@ObjID=@@PROCID,@ErrorLogMsg =@ErrorLogMsg,@DbID = @ProcDbId ; - END; - ELSE - BEGIN - PRINT @ErrorLogMsg ; - END; - - -- increment for summary - SET @CorrectedCount = @CorrectedCount + 1 ; - - END TRY - BEGIN CATCH - -- an error occurred during the corrective action - IF @@TRANCOUNT > 0 - BEGIN - -- just to be sure - ROLLBACK TRANSACTION; - END; - - -- getting back error - SET @ErrorNumber = ERROR_NUMBER(); - SET @ErrorLine = ERROR_LINE(); - SET @ErrorMessage = ERROR_MESSAGE(); - SET @ErrorSeverity = ERROR_SEVERITY(); - SET @ErrorState = ERROR_STATE(); - - SET @ErrorLogMsg = 'Unable to check foreign key ' + QUOTENAME(@CurrentForeignKeyName) + ' on table ' + QUOTENAME(@CurrentDb) + '.' + QUOTENAME(@CurrentSchemaName) + '.' + QUOTENAME(@CurrentTableName) + @LineFeed + - 'Query used : ' + @LineFeed+ - @tsql + @LineFeed + - 'Message ID ' + CONVERT(VARCHAR,@ErrorNumber) + ' caught at Line ' + CONVERT(VARCHAR,@ErrorLine) + @LineFeed + - 'With Severity ' + CONVERT(VARCHAR,@ErrorSeverity) + ' and State ' + CONVERT(VARCHAR,@ErrorState) + @LineFeed + - 'Full Message = ' + @LineFeed + - @ErrorMessage ; - - -- increment for summary - SET @FailedCount = @FailedCount + 1; - - -- Log the error - if(@DbLoggerExists = 1) - BEGIN - SET @tsql = 'exec [Common].[LogMessage] @ApplicationName = ''$(SolutionName)'',@LogLevel = ''ERROR'',@DatabaseID = @DbID,@ObjectID = @ObjID,@LogMessage = @ErrorLogMsg' ; - exec sp_executesql @tsql, N'@ObjID INT,@ErrorLogMsg VARCHAR(max),@DbID INT',@ObjID=@@PROCID,@ErrorLogMsg =@ErrorLogMsg,@DbID = @ProcDbId ; - RAISERROR(@ErrorLogMsg,10,1); - END; - ELSE - BEGIN - PRINT @ErrorLogMsg ; - END; - END CATCH; - - FETCH NEXT FROM GetFKs INTO @CurrentDb,@CurrentSchemaName,@CurrentTableName,@CurrentForeignKeyName,@tsql; - END; - - END TRY - BEGIN CATCH - IF @@TRANCOUNT > 0 - BEGIN - ROLLBACK TRANSACTION; - END; - - SET @ErrorNumber = ERROR_NUMBER(); - SET @ErrorLine = ERROR_LINE(); - SET @ErrorMessage = ERROR_MESSAGE(); - SET @ErrorSeverity = ERROR_SEVERITY(); - SET @ErrorState = ERROR_STATE(); - - SET @ErrorLogMsg = 'Message ID ' + CONVERT(VARCHAR,@ErrorNumber) + ' caught at Line ' + CONVERT(VARCHAR,@ErrorLine) + CHAR(13) + CHAR(10) + - 'With Severity ' + CONVERT(VARCHAR,@ErrorSeverity) + ' and State ' + CONVERT(VARCHAR,@ErrorState) + CHAR(13) + CHAR(10) + - 'Full Message = ' + CHAR(13) + CHAR(10) + - @ErrorMessage ; - - if(EXISTS (SELECT 1 FROM sys.objects WHERE object_id = OBJECT_ID(N'[Common].[LogMessage]') AND type in (N'P'))) - BEGIN - SET @tsql = 'exec [Common].[LogMessage] @ApplicationName = ''$(SolutionName)'',@LogLevel = ''ERROR'',@DatabaseID = @DbID,@ObjectID = @ObjID,@LogMessage = @ErrorLogMsg' ; - exec sp_executesql @tsql, N'@ObjID INT,@ErrorLogMsg VARCHAR(max),@DbID INT',@ObjID=@@PROCID,@ErrorLogMsg =@ErrorLogMsg,@DbID = @ProcDbId ; - RAISERROR(@ErrorLogMsg,10,1); - END; - ELSE - THROW ; - END CATCH; - - -- Cleanups - - IF(OBJECT_ID('tempdb..##UntrustedForeignKeysData') IS NOT NULL) - BEGIN - EXEC sp_executesql N'DROP TABLE ##UntrustedForeignKeysData;'; - END; - - IF (CURSOR_STATUS('local','GetFKs') > -1) - BEGIN - CLOSE GetFKs; - END; - IF (CURSOR_STATUS('local','GetFKs') =-1) - BEGIN - DEALLOCATE GetFKs; - END; - - -- logging the end of execution - if(@DbLoggerExists is not null) - BEGIN - SET @ErrorLogMsg = 'Procedure completed.' + @LineFeed + - 'Summary: ' + @LineFeed + - ' ' + CONVERT(VARCHAR,@CorrectedCount) + ' successful FK check(s).' + @LineFeed + - ' ' + CONVERT(VARCHAR,@FailedCount) + ' failed FK check(s).' - ; - SET @tsql = 'exec [Common].[LogMessage] @ApplicationName = ''$(SolutionName)'',@LogLevel = ''INFO'',@DatabaseID = @DbID,@ObjectID = @ObjID,@LogMessage = @ErrorLogMsg' ; - exec sp_executesql @tsql, N'@ObjID INT,@ErrorLogMsg VARCHAR(max),@DbID INT',@ObjID=@@PROCID,@ErrorLogMsg =@ErrorLogMsg,@DbID = @ProcDbId ; - END; -END -GO +IF OBJECT_ID('dbo.RunCheckUntrustedForeignKeys', 'P') IS NULL +EXECUTE ('CREATE PROCEDURE dbo.RunCheckUntrustedForeignKeys AS SELECT 1'); +GO + + +ALTER PROCEDURE dbo.RunCheckUntrustedForeignKeys( + @DbName VARCHAR(256) = NULL +) +AS +/* +Author: Jefferson Elias +Original link: http://www.sqlshack.com/managing-untrusted-foreign-keys/ +Depends: usp_GetUntrustedForeignKeys +Exapmle: exec dbo.RunCheckUntrustedForeignKeys +*/ +BEGIN + + SET NOCOUNT ON; + + -- general purpose variables + DECLARE @tsql nvarchar(max); -- text to execute via dynamic SQL + DECLARE @LineFeed CHAR(2); + DECLARE @DbLoggerExists BIT; + DECLARE @ErrorLogMsg VARCHAR(MAX); + DECLARE @ProcDbId INT; + DECLARE @CorrectedCount INT; + DECLARE @FailedCount INT; + DECLARE @ErrorNumber INT = ERROR_NUMBER(); + DECLARE @ErrorLine INT = ERROR_LINE(); + DECLARE @ErrorMessage NVARCHAR(4000) = ERROR_MESSAGE(); + DECLARE @ErrorSeverity INT = ERROR_SEVERITY(); + DECLARE @ErrorState INT = ERROR_STATE(); + + -- procedure-sepecific variables + DECLARE @CurrentDb VARCHAR(256); + DECLARE @CurrentSchemaName VARCHAR(256); + DECLARE @CurrentTableName VARCHAR(256); + DECLARE @CurrentForeignKeyName VARCHAR(256); + + -- initial settings + SELECT + @ProcDbId = DB_ID(), + @LineFeed = CHAR(13) + CHAR(10) , + @CorrectedCount = 0, + @FailedCount = 0 + ; + + -- Logging execution + SELECT + @DbLoggerExists = 1 + FROM sys.objects + WHERE object_id = OBJECT_ID(N'[Common].[LogMessage]') AND type in (N'P') ; + + if(@DbLoggerExists is not null) + BEGIN + SET @ErrorLogMsg = 'Procedure started'; + SET @tsql = 'exec [Common].[LogMessage] @ApplicationName = ''$(SolutionName)'',@LogLevel = ''INFO'',@DatabaseID = @DbID,@ObjectID = @ObjID,@LogMessage = @ErrorLogMsg' ; + exec sp_executesql @tsql, N'@ObjID INT,@ErrorLogMsg VARCHAR(max), @DbID INT',@ObjID=@@PROCID,@ErrorLogMsg =@ErrorLogMsg ,@DbID = @ProcDbId; + END; + ELSE + BEGIN + PRINT 'Starting procedure ' + OBJECT_NAME(@@PROCID); + END; + + IF(OBJECT_ID('tempdb..##UntrustedForeignKeysData') IS NOT NULL) + BEGIN + EXEC sp_executesql N'DROP TABLE ##UntrustedForeignKeysData;'; + END; + + BEGIN TRY + + -- building the list of untrusted foreign key based on parameters + + exec dbo.GetUntrustedForeignKeys @DbName = @DbName, @_NoTempTableDropAtTheEnd = 1 , @_NoSelectOnTempTable = 1; + + -- Now let's loop and try to resolve untrusted foreign keys. + + DECLARE GetFKs CURSOR LOCAL FOR + SELECT + DbName,SchemaName,TableName,ForeignKeyName,DDL2Resolve + FROM ##UntrustedForeignKeysData + ; + + OPEN GetFKs; + + FETCH NEXT FROM GetFKs INTO @CurrentDb,@CurrentSchemaName,@CurrentTableName,@CurrentForeignKeyName,@tsql; + + WHILE @@FETCH_STATUS = 0 + BEGIN + BEGIN TRY + + -- run the corrective query + exec sp_executesql @tsql; + + -- log its success + SET @ErrorLogMsg = 'Foreign key ' + QUOTENAME(@CurrentForeignKeyName) + ' on table ' + QUOTENAME(@CurrentDb) + '.' + QUOTENAME(@CurrentSchemaName) + '.' + QUOTENAME(@CurrentTableName) + ' checked successfully.'; + + if(@DbLoggerExists = 1) + BEGIN + SET @tsql = 'exec [Common].[LogMessage] @ApplicationName = ''$(SolutionName)'',@LogLevel = ''INFO'',@DatabaseID = @DbID,@ObjectID = @ObjID,@LogMessage = @ErrorLogMsg' ; + exec sp_executesql @tsql, N'@ObjID INT,@ErrorLogMsg VARCHAR(max),@DbID INT',@ObjID=@@PROCID,@ErrorLogMsg =@ErrorLogMsg,@DbID = @ProcDbId ; + END; + ELSE + BEGIN + PRINT @ErrorLogMsg ; + END; + + -- increment for summary + SET @CorrectedCount = @CorrectedCount + 1 ; + + END TRY + BEGIN CATCH + -- an error occurred during the corrective action + IF @@TRANCOUNT > 0 + BEGIN + -- just to be sure + ROLLBACK TRANSACTION; + END; + + -- getting back error + SET @ErrorNumber = ERROR_NUMBER(); + SET @ErrorLine = ERROR_LINE(); + SET @ErrorMessage = ERROR_MESSAGE(); + SET @ErrorSeverity = ERROR_SEVERITY(); + SET @ErrorState = ERROR_STATE(); + + SET @ErrorLogMsg = 'Unable to check foreign key ' + QUOTENAME(@CurrentForeignKeyName) + ' on table ' + QUOTENAME(@CurrentDb) + '.' + QUOTENAME(@CurrentSchemaName) + '.' + QUOTENAME(@CurrentTableName) + @LineFeed + + 'Query used : ' + @LineFeed+ + @tsql + @LineFeed + + 'Message ID ' + CONVERT(VARCHAR,@ErrorNumber) + ' caught at Line ' + CONVERT(VARCHAR,@ErrorLine) + @LineFeed + + 'With Severity ' + CONVERT(VARCHAR,@ErrorSeverity) + ' and State ' + CONVERT(VARCHAR,@ErrorState) + @LineFeed + + 'Full Message = ' + @LineFeed + + @ErrorMessage ; + + -- increment for summary + SET @FailedCount = @FailedCount + 1; + + -- Log the error + if(@DbLoggerExists = 1) + BEGIN + SET @tsql = 'exec [Common].[LogMessage] @ApplicationName = ''$(SolutionName)'',@LogLevel = ''ERROR'',@DatabaseID = @DbID,@ObjectID = @ObjID,@LogMessage = @ErrorLogMsg' ; + exec sp_executesql @tsql, N'@ObjID INT,@ErrorLogMsg VARCHAR(max),@DbID INT',@ObjID=@@PROCID,@ErrorLogMsg =@ErrorLogMsg,@DbID = @ProcDbId ; + RAISERROR(@ErrorLogMsg,10,1); + END; + ELSE + BEGIN + PRINT @ErrorLogMsg ; + END; + END CATCH; + + FETCH NEXT FROM GetFKs INTO @CurrentDb,@CurrentSchemaName,@CurrentTableName,@CurrentForeignKeyName,@tsql; + END; + + END TRY + BEGIN CATCH + IF @@TRANCOUNT > 0 + BEGIN + ROLLBACK TRANSACTION; + END; + + SET @ErrorNumber = ERROR_NUMBER(); + SET @ErrorLine = ERROR_LINE(); + SET @ErrorMessage = ERROR_MESSAGE(); + SET @ErrorSeverity = ERROR_SEVERITY(); + SET @ErrorState = ERROR_STATE(); + + SET @ErrorLogMsg = 'Message ID ' + CONVERT(VARCHAR,@ErrorNumber) + ' caught at Line ' + CONVERT(VARCHAR,@ErrorLine) + CHAR(13) + CHAR(10) + + 'With Severity ' + CONVERT(VARCHAR,@ErrorSeverity) + ' and State ' + CONVERT(VARCHAR,@ErrorState) + CHAR(13) + CHAR(10) + + 'Full Message = ' + CHAR(13) + CHAR(10) + + @ErrorMessage ; + + if(EXISTS (SELECT 1 FROM sys.objects WHERE object_id = OBJECT_ID(N'[Common].[LogMessage]') AND type in (N'P'))) + BEGIN + SET @tsql = 'exec [Common].[LogMessage] @ApplicationName = ''$(SolutionName)'',@LogLevel = ''ERROR'',@DatabaseID = @DbID,@ObjectID = @ObjID,@LogMessage = @ErrorLogMsg' ; + exec sp_executesql @tsql, N'@ObjID INT,@ErrorLogMsg VARCHAR(max),@DbID INT',@ObjID=@@PROCID,@ErrorLogMsg =@ErrorLogMsg,@DbID = @ProcDbId ; + RAISERROR(@ErrorLogMsg,10,1); + END; + ELSE + THROW ; + END CATCH; + + -- Cleanups + + IF(OBJECT_ID('tempdb..##UntrustedForeignKeysData') IS NOT NULL) + BEGIN + EXEC sp_executesql N'DROP TABLE ##UntrustedForeignKeysData;'; + END; + + IF (CURSOR_STATUS('local','GetFKs') > -1) + BEGIN + CLOSE GetFKs; + END; + IF (CURSOR_STATUS('local','GetFKs') =-1) + BEGIN + DEALLOCATE GetFKs; + END; + + -- logging the end of execution + if(@DbLoggerExists is not null) + BEGIN + SET @ErrorLogMsg = 'Procedure completed.' + @LineFeed + + 'Summary: ' + @LineFeed + + ' ' + CONVERT(VARCHAR,@CorrectedCount) + ' successful FK check(s).' + @LineFeed + + ' ' + CONVERT(VARCHAR,@FailedCount) + ' failed FK check(s).' + ; + SET @tsql = 'exec [Common].[LogMessage] @ApplicationName = ''$(SolutionName)'',@LogLevel = ''INFO'',@DatabaseID = @DbID,@ObjectID = @ObjID,@LogMessage = @ErrorLogMsg' ; + exec sp_executesql @tsql, N'@ObjID INT,@ErrorLogMsg VARCHAR(max),@DbID INT',@ObjID=@@PROCID,@ErrorLogMsg =@ErrorLogMsg,@DbID = @ProcDbId ; + END; +END +GO diff --git a/Stored_Procedure/usp_SQL_Server_System_Report.sql b/Stored_Procedure/dbo.usp_SQL_Server_System_Report.sql similarity index 100% rename from Stored_Procedure/usp_SQL_Server_System_Report.sql rename to Stored_Procedure/dbo.usp_SQL_Server_System_Report.sql diff --git a/Stored_Procedure/usp_SQLskillsAnalyzeLog.sql b/Stored_Procedure/dbo.usp_SQLskillsAnalyzeLog.sql similarity index 96% rename from Stored_Procedure/usp_SQLskillsAnalyzeLog.sql rename to Stored_Procedure/dbo.usp_SQLskillsAnalyzeLog.sql index 08b43f7f..39ef153e 100644 --- a/Stored_Procedure/usp_SQLskillsAnalyzeLog.sql +++ b/Stored_Procedure/dbo.usp_SQLskillsAnalyzeLog.sql @@ -1,271 +1,271 @@ -/* -Author: Paul S. Randal -Original link: http://www.sqlskills.com/blogs/paul/code-to-analyze-the-transaction-hierarchy-in-the-log/ -*/ -/*============================================================================ - File: usp_SQLskillsAnalyzeLog.sql - - Summary: This script cracks the transaction log and prints a hierarchy of - transactions - - SQL Server Versions: 2012 onwards ------------------------------------------------------------------------------- - Written by Paul S. Randal, SQLskills.com - - (c) 2016, SQLskills.com. All rights reserved. - - For more scripts and sample code, check out - http://www.SQLskills.com - - You may alter this code for your own *non-commercial* purposes. You may - republish altered code as long as you include this copyright and give due - credit, but you must obtain prior permission before blogging this code. - - THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF - ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED - TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A - PARTICULAR PURPOSE. -============================================================================*/ -IF OBJECT_ID(N'dbo.usp_SQLskillsAnalyzeLog', 'P') IS NULL -EXECUTE ('CREATE PROCEDURE dbo.usp_SQLskillsAnalyzeLog AS SELECT 1'); -GO - -IF OBJECT_ID(N'dbo.usp_SQLskillsAnalyzeLogInner', 'P') IS NULL -EXECUTE ('CREATE PROCEDURE dbo.usp_SQLskillsAnalyzeLogInner AS SELECT 1'); -GO - -ALTER PROCEDURE dbo.usp_SQLskillsAnalyzeLogInner ( - @XactID AS CHAR (13), - @Depth AS INT) -AS -BEGIN - DECLARE @String VARCHAR (8000); - DECLARE @InsertString VARCHAR (8000); - DECLARE @Name VARCHAR (256); - DECLARE @ID INT; - - DECLARE @SubXactID CHAR (13); - DECLARE @SubDepth INT = @Depth + 3; - - DECLARE [LogAnalysisX] CURSOR FAST_FORWARD LOCAL FOR - SELECT [Transaction ID], [Transaction Name] - FROM ##SQLskills_Log_Analysis - WHERE [Parent Transaction ID] = @XactID; - - OPEN [LogAnalysisX]; - - FETCH NEXT FROM [LogAnalysisX] INTO @SubXactID, @Name; - - WHILE @@FETCH_STATUS = 0 - BEGIN - SELECT @InsertString = REPLICATE ('.', @Depth) + @Name; - - -- Select the last transaction name inserted into the table - SELECT TOP 1 - @ID = [ID], - @String = [XactName] - FROM - ##SQLskills_Log_Analysis2 - ORDER BY [ID] DESC; - - IF @String = @InsertString - UPDATE - ##SQLskills_Log_Analysis2 - SET - [Times] = [Times] + 1 - WHERE - [ID] = @ID; - ELSE - INSERT INTO ##SQLskills_Log_Analysis2 - VALUES (@InsertString, 1); - - -- Recurse... - EXEC usp_SQLskillsAnalyzeLogInner @SubXactID, @SubDepth; - - FETCH NEXT FROM [LogAnalysisX] INTO @SubXactID, @Name; - END; - - CLOSE [LogAnalysisX]; - DEALLOCATE [LogAnalysisX]; -END -GO - -ALTER PROCEDURE dbo.usp_SQLskillsAnalyzeLog ( - -- The name of a database, default of master - @DBName AS sysname = N'master', - - -- Detailed = 0 means just the transaction name - -- Detailed = 1 means time and user - @Detailed AS INT = 0, - - -- Deep = 0 means only the top-level transactions - -- Deep = 1 means sub-transaction hierarchy (slow!) - @Deep AS INT = 0, - - -- PrintOption = 0 means SELECT as a resultset - -- PrintOption = 1 means PRINT as text - @PrintOption VARCHAR (25) = 0) -AS -BEGIN - SET NOCOUNT ON; - - IF EXISTS (SELECT * FROM [tempdb].[sys].[objects] - WHERE [name] = N'##SQLskills_Log_Analysis') - DROP TABLE [##SQLskills_Log_Analysis]; - - IF EXISTS (SELECT * FROM [tempdb].[sys].[objects] - WHERE [name] = N'##SQLskills_Log_Analysis2') - DROP TABLE [##SQLskills_Log_Analysis2]; - - -- Only get the detailed info if we need it - IF @Detailed = 1 - EXEC ('USE ' + @DBName + ';' + - 'SELECT [Transaction ID], [Transaction Name], [Parent Transaction ID],' + - '[Begin Time], SUSER_SNAME ([Transaction SID]) AS [Who] ' + - 'INTO ##SQLskills_Log_Analysis FROM fn_dblog (null,null) ' + - 'WHERE [Operation] = ''LOP_BEGIN_XACT'';'); - ELSE - EXEC ('USE ' + @DBName + ';' + - 'SELECT [Transaction ID], [Transaction Name], [Parent Transaction ID],' + - 'NULL AS [Begin Time], NULL AS [Who]' + - 'INTO ##SQLskills_Log_Analysis FROM fn_dblog (null,null) ' + - 'WHERE [Operation] = ''LOP_BEGIN_XACT'';'); - - - CREATE TABLE ##SQLskills_Log_Analysis2 ( - [ID] INT IDENTITY, - [XactName] VARCHAR (8000), - [Times] INT); - - CREATE CLUSTERED INDEX [ID_CL] - ON ##SQLskills_Log_Analysis2 ([ID]); - - -- Insert a dummy row to make the loop logic simpler - INSERT INTO ##SQLskills_Log_Analysis2 - VALUES ('PSRDummy', 1); - - -- Calculate the transaction hierarchy - DECLARE @XactID CHAR (13); - DECLARE @Name VARCHAR (256); - DECLARE @Begin VARCHAR (100); - DECLARE @Who VARCHAR (100); - DECLARE @String VARCHAR (8000); - DECLARE @ID INT; - DECLARE @Counter INT; - - DECLARE [LogAnalysis] CURSOR FAST_FORWARD FOR - SELECT - [Transaction ID], [Transaction Name], [Begin Time], [Who] - FROM - ##SQLskills_Log_Analysis - WHERE - [Parent Transaction ID] IS NULL; - - OPEN [LogAnalysis]; - - FETCH NEXT FROM [LogAnalysis] INTO @XactID, @Name, @Begin, @Who; - - WHILE @@FETCH_STATUS = 0 - BEGIN - -- Select the last transaction name inserted into the table - SELECT TOP 1 - @ID = [ID], - @String = [XactName] - FROM - ##SQLskills_Log_Analysis2 - ORDER BY ID DESC; - - -- If it's the same as we're about to insert, update the counter, - -- otherwise insert the new transaction name - IF @String = @Name - UPDATE - ##SQLskills_Log_Analysis2 - SET - [Times] = [Times] + 1 - WHERE - [ID] = @ID; - ELSE - BEGIN - SELECT @String = @Name; - - -- Add detail if necessary - IF @Detailed = 1 - BEGIN - -- Do this separately in case CONCAT_NULL_YIELDS_NULL is set - IF @WHO IS NOT NULL - SELECT @String = @String + ' by ' + @Who; - - SELECT @String = @String + ' @ ' + @Begin; - END - - INSERT INTO ##SQLskills_Log_Analysis2 VALUES (@String, 1); - END - - -- Look for subtransactions of this one - IF @Deep = 1 - EXEC usp_SQLskillsAnalyzeLogInner @XactID, 3; - - FETCH NEXT FROM [LogAnalysis] INTO @XactID, @Name, @Begin, @Who; - END; - - CLOSE [LogAnalysis]; - DEALLOCATE [LogAnalysis]; - - -- Discard the dummy row - DELETE - FROM - ##SQLskills_Log_Analysis2 - WHERE - [ID] = 1; - - -- Print the hierachy - DECLARE [LogAnalysis2] CURSOR FOR - SELECT - [ID], - [XactName], - [Times] - FROM - ##SQLskills_Log_Analysis2; - - OPEN [LogAnalysis2]; - - -- Fetch the first transaction name, if any - FETCH NEXT FROM [LogAnalysis2] INTO @ID, @String, @Counter; - - WHILE @@FETCH_STATUS = 0 - BEGIN - IF @Counter > 1 - BEGIN - SELECT @String = @String + ' ' + - CONVERT (VARCHAR, @Counter) + ' times'; - END - - -- If we're going to SELECT the output, update the row - IF @PrintOption = 0 - UPDATE - ##SQLskills_Log_Analysis2 - SET - [XactName] = @String - WHERE - [ID] = @ID; - ELSE - PRINT @String; - - FETCH NEXT FROM [LogAnalysis2] INTO @ID, @String, @Counter; - END; - - CLOSE [LogAnalysis2]; - DEALLOCATE [LogAnalysis2]; - - IF @PrintOption = 0 - BEGIN - SELECT - [XactName] - FROM - ##SQLskills_Log_Analysis2; - END - - DROP TABLE ##SQLskills_Log_Analysis; - DROP TABLE ##SQLskills_Log_Analysis2; -END -GO +/* +Author: Paul S. Randal +Original link: http://www.sqlskills.com/blogs/paul/code-to-analyze-the-transaction-hierarchy-in-the-log/ +*/ +/*============================================================================ + File: usp_SQLskillsAnalyzeLog.sql + + Summary: This script cracks the transaction log and prints a hierarchy of + transactions + + SQL Server Versions: 2012 onwards +------------------------------------------------------------------------------ + Written by Paul S. Randal, SQLskills.com + + (c) 2016, SQLskills.com. All rights reserved. + + For more scripts and sample code, check out + http://www.SQLskills.com + + You may alter this code for your own *non-commercial* purposes. You may + republish altered code as long as you include this copyright and give due + credit, but you must obtain prior permission before blogging this code. + + THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF + ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED + TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A + PARTICULAR PURPOSE. +============================================================================*/ +IF OBJECT_ID(N'dbo.usp_SQLskillsAnalyzeLog', 'P') IS NULL +EXECUTE ('CREATE PROCEDURE dbo.usp_SQLskillsAnalyzeLog AS SELECT 1'); +GO + +IF OBJECT_ID(N'dbo.usp_SQLskillsAnalyzeLogInner', 'P') IS NULL +EXECUTE ('CREATE PROCEDURE dbo.usp_SQLskillsAnalyzeLogInner AS SELECT 1'); +GO + +ALTER PROCEDURE dbo.usp_SQLskillsAnalyzeLogInner ( + @XactID AS CHAR (13), + @Depth AS INT) +AS +BEGIN + DECLARE @String VARCHAR (8000); + DECLARE @InsertString VARCHAR (8000); + DECLARE @Name VARCHAR (256); + DECLARE @ID INT; + + DECLARE @SubXactID CHAR (13); + DECLARE @SubDepth INT = @Depth + 3; + + DECLARE [LogAnalysisX] CURSOR FAST_FORWARD LOCAL FOR + SELECT [Transaction ID], [Transaction Name] + FROM ##SQLskills_Log_Analysis + WHERE [Parent Transaction ID] = @XactID; + + OPEN [LogAnalysisX]; + + FETCH NEXT FROM [LogAnalysisX] INTO @SubXactID, @Name; + + WHILE @@FETCH_STATUS = 0 + BEGIN + SELECT @InsertString = REPLICATE ('.', @Depth) + @Name; + + -- Select the last transaction name inserted into the table + SELECT TOP 1 + @ID = [ID], + @String = [XactName] + FROM + ##SQLskills_Log_Analysis2 + ORDER BY [ID] DESC; + + IF @String = @InsertString + UPDATE + ##SQLskills_Log_Analysis2 + SET + [Times] = [Times] + 1 + WHERE + [ID] = @ID; + ELSE + INSERT INTO ##SQLskills_Log_Analysis2 + VALUES (@InsertString, 1); + + -- Recurse... + EXEC usp_SQLskillsAnalyzeLogInner @SubXactID, @SubDepth; + + FETCH NEXT FROM [LogAnalysisX] INTO @SubXactID, @Name; + END; + + CLOSE [LogAnalysisX]; + DEALLOCATE [LogAnalysisX]; +END +GO + +ALTER PROCEDURE dbo.usp_SQLskillsAnalyzeLog ( + -- The name of a database, default of master + @DBName AS sysname = N'master', + + -- Detailed = 0 means just the transaction name + -- Detailed = 1 means time and user + @Detailed AS INT = 0, + + -- Deep = 0 means only the top-level transactions + -- Deep = 1 means sub-transaction hierarchy (slow!) + @Deep AS INT = 0, + + -- PrintOption = 0 means SELECT as a resultset + -- PrintOption = 1 means PRINT as text + @PrintOption VARCHAR (25) = 0) +AS +BEGIN + SET NOCOUNT ON; + + IF EXISTS (SELECT * FROM [tempdb].[sys].[objects] + WHERE [name] = N'##SQLskills_Log_Analysis') + DROP TABLE [##SQLskills_Log_Analysis]; + + IF EXISTS (SELECT * FROM [tempdb].[sys].[objects] + WHERE [name] = N'##SQLskills_Log_Analysis2') + DROP TABLE [##SQLskills_Log_Analysis2]; + + -- Only get the detailed info if we need it + IF @Detailed = 1 + EXEC ('USE ' + @DBName + ';' + + 'SELECT [Transaction ID], [Transaction Name], [Parent Transaction ID],' + + '[Begin Time], SUSER_SNAME ([Transaction SID]) AS [Who] ' + + 'INTO ##SQLskills_Log_Analysis FROM fn_dblog (null,null) ' + + 'WHERE [Operation] = ''LOP_BEGIN_XACT'';'); + ELSE + EXEC ('USE ' + @DBName + ';' + + 'SELECT [Transaction ID], [Transaction Name], [Parent Transaction ID],' + + 'NULL AS [Begin Time], NULL AS [Who]' + + 'INTO ##SQLskills_Log_Analysis FROM fn_dblog (null,null) ' + + 'WHERE [Operation] = ''LOP_BEGIN_XACT'';'); + + + CREATE TABLE ##SQLskills_Log_Analysis2 ( + [ID] INT IDENTITY, + [XactName] VARCHAR (8000), + [Times] INT); + + CREATE CLUSTERED INDEX [ID_CL] + ON ##SQLskills_Log_Analysis2 ([ID]); + + -- Insert a dummy row to make the loop logic simpler + INSERT INTO ##SQLskills_Log_Analysis2 + VALUES ('PSRDummy', 1); + + -- Calculate the transaction hierarchy + DECLARE @XactID CHAR (13); + DECLARE @Name VARCHAR (256); + DECLARE @Begin VARCHAR (100); + DECLARE @Who VARCHAR (100); + DECLARE @String VARCHAR (8000); + DECLARE @ID INT; + DECLARE @Counter INT; + + DECLARE [LogAnalysis] CURSOR FAST_FORWARD FOR + SELECT + [Transaction ID], [Transaction Name], [Begin Time], [Who] + FROM + ##SQLskills_Log_Analysis + WHERE + [Parent Transaction ID] IS NULL; + + OPEN [LogAnalysis]; + + FETCH NEXT FROM [LogAnalysis] INTO @XactID, @Name, @Begin, @Who; + + WHILE @@FETCH_STATUS = 0 + BEGIN + -- Select the last transaction name inserted into the table + SELECT TOP 1 + @ID = [ID], + @String = [XactName] + FROM + ##SQLskills_Log_Analysis2 + ORDER BY ID DESC; + + -- If it's the same as we're about to insert, update the counter, + -- otherwise insert the new transaction name + IF @String = @Name + UPDATE + ##SQLskills_Log_Analysis2 + SET + [Times] = [Times] + 1 + WHERE + [ID] = @ID; + ELSE + BEGIN + SELECT @String = @Name; + + -- Add detail if necessary + IF @Detailed = 1 + BEGIN + -- Do this separately in case CONCAT_NULL_YIELDS_NULL is set + IF @WHO IS NOT NULL + SELECT @String = @String + ' by ' + @Who; + + SELECT @String = @String + ' @ ' + @Begin; + END + + INSERT INTO ##SQLskills_Log_Analysis2 VALUES (@String, 1); + END + + -- Look for subtransactions of this one + IF @Deep = 1 + EXEC usp_SQLskillsAnalyzeLogInner @XactID, 3; + + FETCH NEXT FROM [LogAnalysis] INTO @XactID, @Name, @Begin, @Who; + END; + + CLOSE [LogAnalysis]; + DEALLOCATE [LogAnalysis]; + + -- Discard the dummy row + DELETE + FROM + ##SQLskills_Log_Analysis2 + WHERE + [ID] = 1; + + -- Print the hierachy + DECLARE [LogAnalysis2] CURSOR FOR + SELECT + [ID], + [XactName], + [Times] + FROM + ##SQLskills_Log_Analysis2; + + OPEN [LogAnalysis2]; + + -- Fetch the first transaction name, if any + FETCH NEXT FROM [LogAnalysis2] INTO @ID, @String, @Counter; + + WHILE @@FETCH_STATUS = 0 + BEGIN + IF @Counter > 1 + BEGIN + SELECT @String = @String + ' ' + + CONVERT (VARCHAR, @Counter) + ' times'; + END + + -- If we're going to SELECT the output, update the row + IF @PrintOption = 0 + UPDATE + ##SQLskills_Log_Analysis2 + SET + [XactName] = @String + WHERE + [ID] = @ID; + ELSE + PRINT @String; + + FETCH NEXT FROM [LogAnalysis2] INTO @ID, @String, @Counter; + END; + + CLOSE [LogAnalysis2]; + DEALLOCATE [LogAnalysis2]; + + IF @PrintOption = 0 + BEGIN + SELECT + [XactName] + FROM + ##SQLskills_Log_Analysis2; + END + + DROP TABLE ##SQLskills_Log_Analysis; + DROP TABLE ##SQLskills_Log_Analysis2; +END +GO diff --git a/Stored_Procedure/usp_SSIS_ScriptEnvironment.sql b/Stored_Procedure/dbo.usp_SSIS_ScriptEnvironment.sql similarity index 100% rename from Stored_Procedure/usp_SSIS_ScriptEnvironment.sql rename to Stored_Procedure/dbo.usp_SSIS_ScriptEnvironment.sql diff --git a/Stored_Procedure/dbo.usp_SearchOnAllDB.sql b/Stored_Procedure/dbo.usp_SearchOnAllDB.sql new file mode 100644 index 00000000..d7a786ff --- /dev/null +++ b/Stored_Procedure/dbo.usp_SearchOnAllDB.sql @@ -0,0 +1,189 @@ +IF Object_id('dbo.usp_SearchOnAllDB', 'P') IS NULL + EXECUTE ('CREATE PROCEDURE dbo.usp_SearchOnAllDB AS SELECT 1'); +GO + +ALTER PROCEDURE dbo.usp_SearchOnAllDB(@phrase VARCHAR(8000), + @OutFullRecords BIT = 0) +AS + /* + To apply so: + exec sp_SearchOnAllDB 'Arme%' + exec sp_SearchOnAllDB '%soft%' + exec sp_SearchOnAllDB '_5234_57%', 1 + exec sp_SearchOnAllDB M_cro_oft + */ + DECLARE @sql NVARCHAR(max); + DECLARE @schema SYSNAME; + DECLARE @tbl SYSNAME; + DECLARE @col SYSNAME; + DECLARE @id_present BIT + DECLARE @is_char_phrase BIT + DECLARE @min_len INT + DECLARE @loop_idx INT + DECLARE @loop_chr CHAR(1) + + SET nocount ON + + IF Isnull(@phrase, '') = '' + BEGIN + RAISERROR('Phrase is absent',16,-1) + + RETURN + END + + -- Handle Quotes passed in the search string + SET @phrase = Replace(@phrase, '''', '''''') + + SELECT @loop_idx = 1, + @is_char_phrase = 0, + @min_len = 0 + + WHILE @loop_idx <= Len(@phrase) + BEGIN + SET @loop_chr = Substring(@phrase, @loop_idx, 1) + + IF @loop_chr NOT IN ( '%', '_' ) + SET @min_len = @min_len + 1 + + IF @is_char_phrase = 0 + AND @loop_chr NOT IN ( '%', '_', '0', '1', + '2', '3', '4', '5', + '6', '7', '8', '9', '.' ) + SET @is_char_phrase = 1 + + SET @loop_idx = @loop_idx + 1 + END + + CREATE TABLE #tbl_res + ( + SchemaName SYSNAME NOT NULL, + TableName SYSNAME NOT NULL, + ColumnName SYSNAME NOT NULL, + Id INT NULL, + ColumnValue NVARCHAR(max) NOT NULL + ); + + CREATE TABLE #tbl_res2 + ( + SchemaName SYSNAME NOT NULL, + TableName SYSNAME NOT NULL, + ColumnName SYSNAME NOT NULL, + Id INT NULL, + ColumnValue NVARCHAR(max) NOT NULL + ); + + DECLARE crr CURSOR local fast_forward FOR + SELECT s.NAME AS SchemaName, + t.NAME AS TableName, + c.NAME AS ColumnName, + 1 AS id_present + FROM sys.objects t + INNER JOIN sys.syscolumns c + ON c.id = t.object_id + INNER JOIN sys.schemas AS s + ON t.schema_id = s.schema_id + WHERE t.type = 'U' + AND c.status&0x80 = 0 -- Not IDENTITY + AND EXISTS (SELECT * + FROM syscolumns c2 + WHERE t.object_id = c2.id + AND c2.status&0x80 = 0x80 + AND c2.xtype IN ( 48, 52, 56 )) + AND ( ( @is_char_phrase = 1 + AND c.xtype IN ( 175, 239, 99, 231, + 35, 167 ) + AND c.length >= @min_len ) -- char only + OR ( @is_char_phrase = 0 + AND c.xtype NOT IN ( 34, 165, 173, 189, + 61, 58, 36 ) ) ) + -- char and numeric + UNION + SELECT s.name, + t.name, + c.name, + 0 + FROM sys.objects t + INNER JOIN sys.syscolumns c + ON c.id = t.object_id + INNER JOIN sys.schemas AS s + ON t.schema_id = s.schema_id + WHERE t.type = 'U' + AND NOT EXISTS (SELECT * + FROM syscolumns c2 + WHERE t.object_id = c2.id + AND c2.status&0x80 = 0x80 + AND c2.xtype IN ( 48, 52, 56 )) + AND ( ( @is_char_phrase = 1 + AND c.xtype IN ( 175, 239, 99, 231, + 35, 167 ) + AND c.length >= @min_len ) -- char only + OR ( @is_char_phrase = 0 + AND c.xtype NOT IN ( 34, 165, 173, 189, + 61, 58, 36 ) ) ) + -- char and numeric + ORDER BY 1, + 2; + + OPEN crr + FETCH crr INTO @schema, @tbl, @col, @id_present + WHILE @@FETCH_STATUS = 0 + BEGIN + IF @OutFullRecords = 0 + BEGIN + SET @sql = + 'insert into #tbl_res (SchemaName, TableName, ColumnName, Id, ColumnValue) ' + + 'select ''[' + @schema + ']'', ''[' + @tbl + + ']'', ''[' + @col + ']'', ' + + IF @id_present = 1 + SET @sql = @sql + 'IDENTITYCOL, ' + ELSE + SET @sql = @sql + 'NULL, ' + + SET @sql = @sql + 'convert(NVARCHAR(MAX), [' + @col + ']) ' + + 'from [' + @schema + '].[' + @tbl + '] (nolock) ' + + 'where convert(varchar(8000), [' + @col + + ']) like ''' + @phrase + ''' ' + END + + IF @OutFullRecords = 1 + BEGIN + SET @sql = 'if exists (select * from [' + @tbl + + '] (nolock) ' + + 'where convert(varchar(8000), [' + @col + + ']) like ''' + @phrase + ''') ' + 'select ''[' + + @tbl + ']'' TableName, ''[' + @col + + ']'' ColumnName, * ' + 'from [' + @tbl + + '] (nolock) where convert(varchar(8000), [' + + @col + ']) like ''' + @phrase + ''';' + END + EXEC(@sql); + + FETCH crr INTO @schema, @tbl, @col, @id_present; + END + + CLOSE crr; + DEALLOCATE crr; + + IF @OutFullRecords = 0 + BEGIN + INSERT #tbl_res2 + SELECT SchemaName, + TableName, + ColumnName, + Id, + CONVERT(VARCHAR(255), ColumnValue) ColumnValue + FROM #tbl_res; + END + SELECT SchemaName, + TableName, + ColumnName, + ColumnValue + FROM #tbl_res2 + GROUP BY SchemaName, + TableName, + ColumnName, + ColumnValue + ORDER BY SchemaName, + TableName; +GO \ No newline at end of file diff --git a/Stored_Procedure/dbo.usp_SearchStoredProcedureText.sql b/Stored_Procedure/dbo.usp_SearchStoredProcedureText.sql new file mode 100644 index 00000000..4f9b534e --- /dev/null +++ b/Stored_Procedure/dbo.usp_SearchStoredProcedureText.sql @@ -0,0 +1,91 @@ +SET NOEXEC OFF; + +IF OBJECT_ID('dbo.sp_foreachdb', 'P') IS NULL +RAISERROR('Please install before awesome stored procedure https://github.com/ktaranov/SQL-Server-First-Responder-Kit/blob/master/sp_foreachdb.sql', 16, 1); +SET NOEXEC ON; +GO + + +IF OBJECT_ID('dbo.usp_SearchStoredProcedureText', 'P') IS NULL +EXECUTE ('CREATE PROCEDURE dbo.usp_SearchStoredProcedureText AS RETURN'); +GO + + +ALTER PROCEDURE dbo.usp_SearchStoredProcedureText( + @searchforthis NVARCHAR(512) + , @object_type VARCHAR(2) = NULL + , @is_ms_shipped BIT = 0 +) +AS +/* +.DESCRIPTION +Search text in stored procedures + +.EXAMPLE +EXEC dbo.usp_SearchStoredProcedureText @searchforthis = 'sp_foreachdb'; + +.NOTE + Author: Tim Ford + Original link: https://www.itprotoday.com/microsoft-sql-server/using-sqlmodules-system-catalog-view-search-function-and-stored-procedure + + +*/ +SET NOCOUNT ON; + +DECLARE @search_text NVARCHAR(MAX); + +CREATE TABLE #search_results + ( + the__database sysname NOT NULL, + the__schema sysname NOT NULL, + object__name sysname NOT NULL, + object__type NVARCHAR(120) NOT NULL, + is_ms_shipped BIT NOT NULL, + sql__text NVARCHAR(MAX) NOT NULL + ); + +IF @object_type IS NULL + BEGIN + SELECT @search_text = + 'USE ?; + INSERT INTO #search_results (the__database, the__schema, object__name, object__type, is_ms_shipped, sql__text) + SELECT db_name() AS the__database + , OBJECT_SCHEMA_NAME(O.object_id) AS the__schema + , O.name AS object__name + , O.type_desc AS object__type + , O.is_ms_shipped + , M.definition AS sql__text + FROM sys.objects O WITH(NOLOCK) + LEFT JOIN sys.sql_modules M ON O.object_id = M.object_id + WHERE O.is_ms_shipped = ' + CAST(@is_ms_shipped AS VARCHAR(1)) + ' AND M.definition LIKE ''%' + @searchforthis + '%''' + ';'; + END; +ELSE + BEGIN + SELECT @search_text = + 'USE ?; + INSERT INTO #search_results (the__database, the__schema, object__name, object__type, is_ms_shipped, sql__text) + SELECT db_name() AS the__database + , OBJECT_SCHEMA_NAME(O.object_id) AS the__schema + , O.name AS object__name + , O.type_desc AS object__type + , O.is_ms_shipped + , M.definition AS sql__text + FROM sys.objects O WITH(NOLOCK) + LEFT JOIN sys.sql_modules M ON O.object_id = M.object_id + WHERE O.is_ms_shipped = ' + CAST(@is_ms_shipped AS VARCHAR(1)) + ' AND O.type = ''' + @object_type + '''' + + 'AND M.definition LIKE ''%' + @searchforthis + '%''' + ';'; + END; + +EXEC dbo.sp_foreachdb @command = @search_text; + +SELECT the__database + , the__schema + , object__name + , object__type + , is_ms_shipped + , sql__text +FROM #search_results +ORDER BY the__database + , the__schema + , object__name; +GO diff --git a/Stored_Procedure/usp_SetFileGrowth.sql b/Stored_Procedure/dbo.usp_SetFileGrowth.sql similarity index 100% rename from Stored_Procedure/usp_SetFileGrowth.sql rename to Stored_Procedure/dbo.usp_SetFileGrowth.sql diff --git a/Stored_Procedure/dbo.usp_String_Search.sql b/Stored_Procedure/dbo.usp_String_Search.sql new file mode 100644 index 00000000..c850b0a6 --- /dev/null +++ b/Stored_Procedure/dbo.usp_String_Search.sql @@ -0,0 +1,460 @@ +IF OBJECT_ID (N'dbo.usp_String_Search', N'P') IS NULL +EXECUTE ('CREATE PROCEDURE dbo.usp_String_Search AS SELECT 1 AS shell') +GO + + +----------------------------------------------------------------------------------------------------------------------------- +-- Stored Procedure Details: Listing Of Standard Details Related To The Stored Procedure +----------------------------------------------------------------------------------------------------------------------------- + +-- Purpose: Search For A String Value Within Columns Of Data Types CHAR, NCHAR, NTEXT, NVARCHAR, TEXT, VARCHAR, XML +-- Create Date (MM/DD/YYYY): 03/20/2012 +-- Developer: Sean Smith (s.smith.sql AT gmail DOT com) +-- Additional Notes: N/A + + +----------------------------------------------------------------------------------------------------------------------------- +-- Modification History: Listing Of All Modifications Since Original Implementation +----------------------------------------------------------------------------------------------------------------------------- + +-- Description: Added "is_ms_shipped" Field +-- : Added Option To Include System Objects In Search +-- Date (MM/DD/YYYY): 12/06/2015 +-- Developer: Sean Smith (s.smith.sql AT gmail DOT com) +-- Additional Notes: N/A + + +----------------------------------------------------------------------------------------------------------------------------- +-- Main Query: Create Procedure +----------------------------------------------------------------------------------------------------------------------------- + +ALTER PROCEDURE dbo.usp_String_Search( + @Search_String AS NVARCHAR (500) + ,@Database_Name AS NVARCHAR (300) + ,@Object_Types AS NVARCHAR (10) = NULL + ,@Data_Types AS NVARCHAR (100) = NULL + ,@Table_Max_Rows AS BIGINT = NULL + ,@Column_Max_Length AS SMALLINT = NULL + ,@Creation_Source AS NVARCHAR (1) = N'U' +) +AS + +SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED; +SET NOCOUNT ON; +SET ANSI_WARNINGS OFF; +SET ARITHABORT OFF; +SET ARITHIGNORE ON; +SET TEXTSIZE 2147483647; + +DECLARE + @Creation_Filter AS NVARCHAR (30) + ,@Loop_Column_Number AS BIGINT + ,@Loop_Column_Number_First AS BIGINT + ,@Loop_Object_Number AS BIGINT + ,@Object_Name AS SYSNAME + ,@Object_Prefix AS NVARCHAR (4) + ,@Schema_Name AS SYSNAME + ,@SQL_String_Full AS NVARCHAR (MAX) + ,@SQL_String_IN_Column_Name AS NVARCHAR (MAX) + ,@SQL_String_SELECT AS NVARCHAR (MAX) + ,@SQL_String_WHERE AS NVARCHAR (MAX); + +SET @Creation_Filter = (CASE @Creation_Source + WHEN N'S' THEN N'AND O.is_ms_shipped = 1' + WHEN N'U' THEN N'AND O.is_ms_shipped = 0' + ELSE N'' + END); + +SET @Object_Prefix = (CASE + WHEN @Creation_Source IN (N'B', N'S') THEN N'all_' + ELSE N'' + END); + +SET @Object_Types = N'''' + REPLACE (REPLACE (NULLIF (@Object_Types, N''), N' ', N''), N',', N''',''') + N'''' +SET @Data_Types = N'''' + REPLACE (REPLACE (NULLIF (@Data_Types, N''), N' ', N''), N',', N''',''') + N'''' + +----------------------------------------------------------------------------------------------------------------------------- +-- Error Trapping I: Validate "@Creation_Source", "@Database_Name", And "@Search_String" Input Parameter Values +----------------------------------------------------------------------------------------------------------------------------- + +IF @Creation_Source NOT IN (N'B', N'S', N'U') +BEGIN + + RAISERROR( + 'ERROR: ''%s'' is not a valid creation source. + +Valid Creation Sources: + +B : Both (User and System created objects) +S : System created objects only +U : User created objects only' + ,16 + ,1 + ,@Creation_Source + ); + RETURN +END + + +IF EXISTS (SELECT * FROM master.sys.databases DB WHERE DB.name = @Database_Name) +BEGIN + + SET @Database_Name = QUOTENAME (@Database_Name) + +END +ELSE IF EXISTS (SELECT * FROM master.sys.databases DB WHERE QUOTENAME (DB.name) = @Database_Name + N']') +BEGIN + + SET @Database_Name = @Database_Name + N']' + +END +ELSE IF NOT EXISTS (SELECT * FROM master.sys.databases DB WHERE QUOTENAME (DB.name) = @Database_Name) +BEGIN + + RAISERROR + + ( + N'ERROR: Database (''%s'') does not exist. Make sure that the name is entered correctly.' + ,16 + ,1 + ,@Database_Name + ); + RETURN +END + + +IF NULLIF (@Search_String, N'') IS NOT NULL +BEGIN + SET @Search_String = REPLACE (REPLACE (REPLACE (REPLACE (@Search_String, N'[', N'[[]'), N'%', N'[%]'), N'_', N'[_]'), N'''', N'''''') +END +ELSE BEGIN + + RAISERROR + ( + N'ERROR: @Search_String input parameter cannot be blank or NULL.' + ,16 + ,1 + ); + RETURN; +END; + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Creation: Create Temp Tables To Temporarily Store Searchable Objects / Columns And Output Results +----------------------------------------------------------------------------------------------------------------------------- + +CREATE TABLE dbo.#temp_string_search_objects_columns + + ( + object_type VARCHAR (2) NOT NULL + ,is_ms_shipped BIT NOT NULL + ,data_type SYSNAME NOT NULL + ,data_length SMALLINT NOT NULL + ,[schema_name] SYSNAME NOT NULL + ,[object_name] SYSNAME NOT NULL + ,column_name SYSNAME NOT NULL + ,schema_object_dense_rank BIGINT NOT NULL + ,column_row_number BIGINT UNIQUE NOT NULL + ,PRIMARY KEY CLUSTERED + ( + schema_object_dense_rank + ,column_row_number + ) + ); + +CREATE TABLE dbo.#temp_string_search_results + + ( + [schema_name] SYSNAME NOT NULL + ,[object_name] SYSNAME NOT NULL + ,column_name SYSNAME NOT NULL + ,column_data NVARCHAR (MAX) NOT NULL + ,occurrences INT NOT NULL + ); + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Update I: Insert Searchable Objects / Columns Into Temp Table +----------------------------------------------------------------------------------------------------------------------------- + SET @SQL_String_Full = + N' + SELECT + O.[type] AS object_type + ,O.is_ms_shipped + ,LOWER (TYPE_NAME (C.user_type_id) + ISNULL ((N'': [ '' + (CASE + WHEN C.system_type_id <> C.user_type_id THEN TYPE_NAME (C.system_type_id) + END) + N'' ]''), N'''')) AS data_type + ,(CASE + WHEN LOWER (TYPE_NAME (C.system_type_id)) IN (N''nchar'', N''ntext'', N''nvarchar'') THEN CONVERT (VARCHAR (6), C.max_length / 2) + WHEN LOWER (TYPE_NAME (C.system_type_id)) NOT IN (N''bigint'', N''bit'', N''date'', N''datetime'', N''datetime2'', N''datetimeoffset'', N''decimal'', N''float'', N''int'', N''money'', N''numeric'', N''real'', N''smalldatetime'', N''smallint'', N''smallmoney'', N''time'', N''tinyint'') THEN CONVERT (VARCHAR (6), C.max_length) + ELSE CONVERT (VARCHAR (6), C.max_length) + '' ('' + CONVERT (VARCHAR (11), COLUMNPROPERTY (C.[object_id], C.name, ''Precision'')) + '','' + ISNULL (CONVERT (VARCHAR (11), COLUMNPROPERTY (C.[object_id], C.name, ''Scale'')), 0) + '')'' + END) AS data_length + ,S.name AS [schema_name] + ,O.name AS [object_name] + ,C.name AS column_name + ,DENSE_RANK () OVER + ( + ORDER BY + S.name + ,O.name + ) AS schema_object_dense_rank + ,ROW_NUMBER () OVER + ( + ORDER BY + C.name + ) AS column_row_number + FROM + ' + @Database_Name + N'.sys.schemas S + INNER JOIN ' + @Database_Name + N'.sys.' + @Object_Prefix + N'objects O ON O.[schema_id] = S.[schema_id] + AND O.[type] IN (' + (CASE + WHEN @Object_Types IS NOT NULL THEN @Object_Types + ELSE N'''U'', ''V''' + END) + N') + ' + + @Creation_Filter + + N' + INNER JOIN ' + @Database_Name + N'.sys.' + @Object_Prefix + N'columns C ON C.[object_id] = O.[object_id] + ' + +IF @Column_Max_Length > 0 +BEGIN + SET @SQL_String_Full = @SQL_String_Full + + N' + ' + NCHAR (9) + N'AND C.system_type_id IN (167, 175, 231, 239) + ' + NCHAR (9) + N'AND (CASE + WHEN TYPE_NAME (C.system_type_id) IN (N''nchar'', N''ntext'', N''nvarchar'') THEN C.max_length / 2 + ELSE C.max_length + END) BETWEEN 1 AND ' + CONVERT (NVARCHAR (6), @Column_Max_Length) + N' + '; +END +ELSE BEGIN + SET @SQL_String_Full = @SQL_String_Full + + N' + ' + NCHAR (9) + N'AND C.system_type_id IN (35, 99, 167, 175, 231, 239, 241) + '; +END + +SET @SQL_String_Full = @SQL_String_Full + + N' + INNER JOIN ' + @Database_Name + N'.sys.types T ON T.system_type_id = C.system_type_id + AND T.user_type_id = C.user_type_id + ' + (CASE + WHEN @Data_Types IS NOT NULL THEN REPLICATE (NCHAR (9), 3) + N'AND T.name IN (' + @Data_Types + N')' + ELSE N'' + END) + +IF @Table_Max_Rows > 0 +BEGIN + SET @SQL_String_Full = @SQL_String_Full + + N' + INNER JOIN + ( + SELECT + DDPS.[object_id] + FROM + ' + @Database_Name + N'.sys.dm_db_partition_stats DDPS + WHERE + DDPS.index_id < 2 + GROUP BY + DDPS.[object_id] + HAVING + SUM (DDPS.row_count) <= ' + CONVERT (NVARCHAR (20), @Table_Max_Rows) + N' + ) sqTMR ON sqTMR.[object_id] = O.[object_id] + ' +END + + +INSERT INTO dbo.#temp_string_search_objects_columns( + object_type + ,is_ms_shipped + ,data_type + ,data_length + ,[schema_name] + ,[object_name] + ,column_name + ,schema_object_dense_rank + ,column_row_number + ) +EXECUTE (@SQL_String_Full); + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Update II: Insert Matched Results Into Temp Table +----------------------------------------------------------------------------------------------------------------------------- +SELECT TOP (1) + @Loop_Object_Number = X.schema_object_dense_rank + ,@Schema_Name = X.[schema_name] + ,@Object_Name = X.[object_name] +FROM + dbo.#temp_string_search_objects_columns X +ORDER BY + X.schema_object_dense_rank; + +WHILE @Loop_Object_Number IS NOT NULL +BEGIN + + SET @SQL_String_SELECT = N''; + SET @SQL_String_IN_Column_Name = N''; + SET @SQL_String_WHERE = N''; + SET @Loop_Column_Number = (SELECT MIN (X.column_row_number) FROM dbo.#temp_string_search_objects_columns X WHERE X.schema_object_dense_rank = @Loop_Object_Number); + SET @Loop_Column_Number_First = @Loop_Column_Number; + WHILE @Loop_Column_Number IS NOT NULL + BEGIN + SELECT + @SQL_String_SELECT = @SQL_String_SELECT + (CASE + WHEN @Loop_Column_Number = @Loop_Column_Number_First THEN N'SELECT' + NCHAR (13) + REPLICATE (NCHAR (9), 7) + N' ' + ELSE NCHAR (13) + REPLICATE (NCHAR (9), 7) + N',' + END) + N'CONVERT (NVARCHAR (MAX), (CASE + WHEN ' + (CASE + WHEN X.data_type = N'XML' THEN N'CONVERT (NVARCHAR (MAX), ' + ELSE N'' + END) + QUOTENAME (X.column_name) + (CASE + WHEN X.data_type = N'XML' THEN N')' + ELSE N'' + END) + N' LIKE ''%' + @Search_String + N'%'' THEN ' + QUOTENAME (X.column_name) + N' + ELSE NULL + END)) AS ' + QUOTENAME (X.column_name) + ,@SQL_String_IN_Column_Name = @SQL_String_IN_Column_Name + (CASE + WHEN @Loop_Column_Number = @Loop_Column_Number_First THEN N'' + ELSE N', ' + END) + QUOTENAME (X.column_name) + ,@SQL_String_WHERE = @SQL_String_WHERE + (CASE + WHEN @Loop_Column_Number = @Loop_Column_Number_First THEN NCHAR (13) + REPLICATE (NCHAR (9), 6) + N'WHERE' + NCHAR (13) + REPLICATE (NCHAR (9), 7) + ELSE NCHAR (13) + REPLICATE (NCHAR (9), 7) + N'OR ' + END) + (CASE + WHEN X.data_type = N'XML' THEN N'CONVERT (NVARCHAR (MAX), ' + ELSE N'' + END) + QUOTENAME (X.column_name) + (CASE + WHEN X.data_type = N'XML' THEN N')' + ELSE N'' + END) + N' LIKE ''%' + @Search_String + N'%''' + FROM + dbo.#temp_string_search_objects_columns X + WHERE + X.schema_object_dense_rank = @Loop_Object_Number + AND X.column_row_number = @Loop_Column_Number; + + + SET @Loop_Column_Number = (SELECT MIN (X.column_row_number) FROM dbo.#temp_string_search_objects_columns X WHERE X.schema_object_dense_rank = @Loop_Object_Number AND X.column_row_number > @Loop_Column_Number) + + END + + + SET @SQL_String_Full = + + ( + N' + SELECT + ''' + @Schema_Name + N''' AS [schema_name] + ,''' + @Object_Name + N''' AS [object_name] + ,UNPV.column_name + ,UNPV.column_data + ,COUNT (*) AS occurrences + FROM + + ( + ' + + @SQL_String_SELECT + + NCHAR (13) + REPLICATE (NCHAR (9), 6) + N'FROM' + NCHAR (13) + + REPLICATE (NCHAR (9), 7) + @Database_Name + + N'.' + + QUOTENAME (@Schema_Name) + + N'.' + + QUOTENAME (@Object_Name) + + @SQL_String_WHERE + + N' + ) sqMAT + + UNPIVOT + + ( + column_data FOR column_name IN + + ( + ' + @SQL_String_IN_Column_Name + N' + ) + + ) UNPV + + GROUP BY + UNPV.column_name + ,UNPV.column_data + ' + ) + + + BEGIN TRY + + INSERT INTO dbo.#temp_string_search_results + + ( + [schema_name] + ,[object_name] + ,column_name + ,column_data + ,occurrences + ) + + EXECUTE (@SQL_String_Full) + + END TRY + BEGIN CATCH + + END CATCH + + + SELECT TOP (1) + @Loop_Object_Number = X.schema_object_dense_rank + ,@Schema_Name = X.[schema_name] + ,@Object_Name = X.[object_name] + FROM + dbo.#temp_string_search_objects_columns X + WHERE + X.schema_object_dense_rank = @Loop_Object_Number + 1 + ORDER BY + X.schema_object_dense_rank + + IF @@ROWCOUNT = 0 + BEGIN + SET @Loop_Object_Number = NULL + END +END + + +----------------------------------------------------------------------------------------------------------------------------- +-- Main Query: Final Display / Output +----------------------------------------------------------------------------------------------------------------------------- + +SELECT + (CASE Y.object_type + WHEN 'U' THEN 'Table' + WHEN 'V' THEN 'View' + ELSE 'ERROR' + END) AS object_type + ,(CASE + WHEN Y.is_ms_shipped = 1 THEN 'Yes' + ELSE 'No' + END) AS is_ms_shipped + ,Y.data_type + ,Y.data_length + ,DB_NAME (DB_ID (SUBSTRING (@Database_Name, 2, LEN (@Database_Name) - 2))) AS database_name + ,Y.[schema_name] + ,Y.[object_name] + ,Y.column_name + ,Z.column_data + ,CONVERT (XML, (CASE + WHEN Y.data_type = N'XML' THEN Z.column_data + ELSE N'' + END)) AS column_data_xml + ,Z.occurrences +FROM + dbo.#temp_string_search_objects_columns Y + INNER JOIN dbo.#temp_string_search_results Z ON Z.[schema_name] = Y.[schema_name] + AND Z.[object_name] = Y.[object_name] + AND Z.column_name = Y.column_name +ORDER BY + Y.object_type + ,Y.is_ms_shipped + ,Y.[schema_name] + ,Y.[object_name] + ,Y.column_name + ,Z.column_data; +GO diff --git a/Stored_Procedure/usp_TableUnpivot.sql b/Stored_Procedure/dbo.usp_TableUnpivot.sql similarity index 100% rename from Stored_Procedure/usp_TableUnpivot.sql rename to Stored_Procedure/dbo.usp_TableUnpivot.sql diff --git a/Stored_Procedure/dbo.usp_TopologicalSort.sql b/Stored_Procedure/dbo.usp_TopologicalSort.sql new file mode 100644 index 00000000..3cda1846 --- /dev/null +++ b/Stored_Procedure/dbo.usp_TopologicalSort.sql @@ -0,0 +1,127 @@ +IF OBJECT_ID (N'dbo.usp_TopologicalSort', 'P') IS NULL + EXECUTE('CREATE PROCEDURE usp_TopologicalSort AS SELECT 1'); +GO + +ALTER PROCEDURE dbo.usp_TopologicalSort +AS +/* +http://www.hansolav.net/sql/graphs.html +Determines a topological ordering or reports that the graph is not a DAG. + +CREATE TABLE dbo.Node +( + Id int NOT NULL PRIMARY KEY, + Name varchar(50) NULL +) + +CREATE TABLE dbo.Edge +( + FromNode int NOT NULL REFERENCES dbo.Node (Id), + ToNode int NOT NULL REFERENCES dbo.Node (Id), + [Weight] decimal (10, 3) NULL, + PRIMARY KEY CLUSTERED (FromNode ASC, ToNode ASC) +) +*/ +BEGIN + -- Automatically rollback the transaction if something goes wrong. + SET XACT_ABORT ON + BEGIN TRAN + + -- Increase performance and do not intefere with the results. + SET NOCOUNT ON; + + -- Create a temporary table for building the topological ordering + CREATE TABLE #Order + ( + NodeId int PRIMARY KEY, -- The Node Id + Ordinal int NULL -- Defines the topological ordering. NULL for nodes that are + ) -- not yet processed. Will be set as nodes are processed in topological order. + + -- Create a temporary copy of the edges in the graph that we can work on. + CREATE TABLE #TempEdges + ( + FromNode int, -- From Node Id + ToNode int, -- To Node Id + PRIMARY KEY (FromNode, ToNode) + ) + + -- Grab a copy of all the edges in the graph, as we will + -- be deleting edges as the algorithm runs. + INSERT INTO #TempEdges (FromNode, ToNode) + SELECT e.FromNode, e.ToNode + FROM dbo.Edge e + + -- Start by inserting all the nodes that have no incoming edges, is it + -- is guaranteed that no other nodes should come before them in the ordering. + -- Insert with NULL for Ordinal, as we will set this when we process the node. + INSERT INTO #Order (NodeId, Ordinal) + SELECT n.Id, NULL + FROM dbo.Node n + WHERE NOT EXISTS ( + SELECT TOP 1 1 FROM dbo.Edge e WHERE e.ToNode = n.Id) + + DECLARE @CurrentNode int, -- The current node being processed. + @Counter int = 0 -- Counter to assign values to the Ordinal column. + + -- Loop until we are done. + WHILE 1 = 1 + BEGIN + -- Reset the variable, so we can detect getting no records in the next step. + SET @CurrentNode = NULL + + -- Select the id of any node with Ordinal IS NULL that is currently in our + -- Order table, as all nodes with Ordinal IS NULL in this table has either + -- no incoming edges or any nodes with edges to it have already been processed. + SELECT TOP 1 @CurrentNode = NodeId + FROM #Order WHERE Ordinal IS NULL + + -- If there are no more such nodes, we are done + IF @CurrentNode IS NULL BREAK + + -- We are processing this node, so set the Ordinal column of this node to the + -- counter value and increase the counter. + UPDATE #Order SET Ordinal = @Counter, @Counter = @Counter + 1 + WHERE NodeId = @CurrentNode + + -- This is the complex part. Select all nodes that has exactly ONE incoming + -- edge - the edge from @CurrentNode. Those nodes can follow @CurrentNode + -- in the topological ordering because the must not come after any other nodes, + -- or those nodes have already been processed and inserted earlier in the + -- ordering and had their outgoing edges removed in the next step. + INSERT #Order (NodeId, Ordinal) + SELECT Id, NULL + FROM dbo.Node n + JOIN #TempEdges e1 ON n.Id = e1.ToNode -- Join on edge destination + WHERE e1.FromNode = @CurrentNode AND -- Edge starts in @CurrentNode + NOT EXISTS ( -- Make sure there are no edges to this node + SELECT TOP 1 1 FROM #TempEdges e2 -- other then the one from @CurrentNode. + WHERE e2.ToNode = n.Id AND e2.FromNode <> @CurrentNode) + + -- Last step. We are done with @CurrentNode, so remove all outgoing edges from it. + -- This will "free up" any nodes it has edges into to be inserted into the topological ordering. + DELETE FROM #TempEdges WHERE FromNode = @CurrentNode + END + + -- If there are edges left in our graph after the algorithm is done, it + -- means that it could not reach all nodes to eliminate all edges, which + -- means that the graph must have cycles and no topological ordering can be produced. + IF EXISTS (SELECT TOP 1 1 FROM #TempEdges) + BEGIN + SELECT 'The graph contains cycles and no topological ordering can + be produced. This is the set of edges I could not remove:' + SELECT FromNode, ToNode FROM #TempEdges + END + ELSE + -- Select the nodes ordered by the topological ordering we produced. + SELECT n.Id, n.Name + FROM dbo.Node n + JOIN #Order o ON n.Id = o.NodeId + ORDER BY o.Ordinal + + -- Clean up, commit and return. + DROP TABLE #TempEdges + DROP TABLE #Order + COMMIT TRAN + RETURN 0 +END +GO diff --git a/Stored_Procedure/dbo.usp_TransliterationEN2RU.sql b/Stored_Procedure/dbo.usp_TransliterationEN2RU.sql new file mode 100644 index 00000000..e75ebf92 --- /dev/null +++ b/Stored_Procedure/dbo.usp_TransliterationEN2RU.sql @@ -0,0 +1,317 @@ +IF OBJECT_ID('dbo.usp_TransliterationEN2RU', 'P') IS NULL + EXECUTE ('CREATE PROCEDURE dbo.usp_TransliterationEN2RU AS SELECT 1;'); +GO + +ALTER PROCEDURE usp_TransliterationEN2RU ( + @inputString NVARCHAR(MAX) + , @transid INT = NULL + ) +/* +.SYNOPSIS + Процедура транслитерации кирилицы в латинский и французский алфавиты. + +.DESCRIPTION + По умолчанию процедура возвращает все 3 типа разных транслитераций, но с помощью параметра @transid можно вернуть только один необходимый. + +.PARAMETER @inputString + Текст кириллицей со знаками препинания, тип данных NVARCHAR(MAX) + +.PARAMETER @transid + Варианты транслитерации: + 1 - в соответствии с приложением 6 приказа МВД России от 26 мая 1997 г. N 310 http://legalacts.ru/doc/prikaz-mvd-rf-ot-26051997-n-310/ ОБРАЗЦЫ НАПИСАНИЯ ФАМИЛИЙ, ИМЕН И ДРУГИХ ДАННЫХ НА ФРАНЦУЗСКОМ ЯЗЫКЕ + 2 - в соответствии с ГОСТ Р 52535.1-2006 http://docs.cntd.ru/document/1200045268 Приложение А (обязательное). Транслитерация кириллицы для русского алфавита + 3 - в соответствии с п. 97 приказа ФМС России N 320 от 15 октября 2012 г.[10] в соответствии с рекомендованным ИКАО международным стандартом (Doc 9303, часть 1, добавлении 9 к разделу IV) http://www.icao.int/publications/Documents/9303_p1_v1_cons_ru.pdf + +.EXAMPLE + EXEC usp_TransliterationEN2RU @inputString = 'Шрамко Александр'; + +.EXAMPLE + EXEC usp_TransliterationEN2RU @inputString = 'ВаСиньин еГЕпа. ксения чьё ю вася мясо шняжка !!!' , @transid = 1; + +.NOTE + Version: 3.0 + Modified: 218-04-02 23:05:21 UTC+3 by Konstantin Taranov + Author: Shramko Aleksandr https://github.com/shramko/mssql/blob/master/transliteration.sql + Link: https://github.com/ktaranov/sqlserver-kit/blob/master/Stored_Procedure/usp_TransliterationEN2RU.sql +*/ +AS +BEGIN TRY + + DECLARE @outputstring NVARCHAR(MAX) + , @counter INT + , @ch1 NVARCHAR(10) + , @ch2 NVARCHAR(10) + , @ch3 NVARCHAR(10); + DECLARE @result_table TABLE ( + id INT + ,translate NVARCHAR(MAX) + ) + + ------------------------------------------------------------------ + ------- 1 - в соответствии с приложением 6 приказа МВД России от 26 мая 1997 г. N 310 ------------------ + SELECT @counter = 1 + ,@outputstring = ''; + + --подготовка случаев: С - между двумя гласными выражается - ss - Goussev. + DECLARE @t1 TABLE (ch NCHAR(1)); + + INSERT INTO @t1 + SELECT N'А' + UNION ALL + SELECT N'Е' + UNION ALL + SELECT N'Ё' + UNION ALL + SELECT N'И' + UNION ALL + SELECT N'О' + UNION ALL + SELECT N'У' + UNION ALL + SELECT N'Ы' + UNION ALL + SELECT N'Э' + UNION ALL + SELECT N'Ю' + UNION ALL + SELECT N'Я'; + + DECLARE @t2 TABLE (ch NCHAR(1)); + + INSERT INTO @t2 + SELECT N'С'; + + DECLARE @str NVARCHAR(4000) = N''; + + SELECT @str = @str + t1.ch + t2.ch + t3.ch + N'|' + FROM @t1 t1 + , @t2 t2 + , @t1 t3; + + WHILE (@counter <= LEN(@inputString)) + BEGIN + SET @ch1 = SUBSTRING(@inputString, @counter, 1); + SET @ch2 = SUBSTRING(@inputString, @counter, 2); + + PRINT (@counter); + + SELECT @outputstring = @outputstring + CASE + WHEN J8 > 0 + THEN CASE + WHEN @ch2 COLLATE Cyrillic_General_CS_AS = upper(@ch2) + THEN 'INE' + ELSE 'ine' + END + WHEN J7 > 0 + THEN CASE + WHEN @ch2 COLLATE Cyrillic_General_CS_AS = upper(@ch2) + THEN 'IE' + ELSE 'ie' + END + WHEN J6 > 0 + THEN CASE + WHEN @ch1 COLLATE Cyrillic_General_CS_AS = upper(@ch1) + THEN 'X' + ELSE 'x' + END + WHEN J5 > 0 + THEN CASE + WHEN @ch1 COLLATE Cyrillic_General_CS_AS = upper(@ch1) + THEN 'SS' + ELSE 'ss' + END + WHEN J4 > 0 + THEN CASE + WHEN @ch2 COLLATE Cyrillic_General_CS_AS = upper(@ch2) + THEN 'GUIA' + WHEN @ch1 COLLATE Cyrillic_General_CS_AS = upper(@ch1) + THEN 'Guia' + ELSE 'guia' + END + WHEN J3 > 0 + THEN CASE + WHEN @ch2 COLLATE Cyrillic_General_CS_AS = upper(@ch2) + THEN 'GUIOU' + WHEN @ch1 COLLATE Cyrillic_General_CS_AS = upper(@ch1) + THEN 'Guiou' + ELSE 'guiou' + END + WHEN J2 > 0 + THEN REPLACE(SUBSTRING(CASE + WHEN @ch2 COLLATE Cyrillic_General_CS_AS = upper(@ch2) + THEN '|GUE|GUE|GUI|GUI|GUY' + WHEN @ch1 COLLATE Cyrillic_General_CS_AS = upper(@ch1) + THEN '|Gue|Gue|Gui|Gui|Guy' + ELSE '|gue|gue|gui|gui|guy' + END, J2 + 1, 3), '|', '') + WHEN J1 > 0 + THEN SUBSTRING(CASE + WHEN @ch2 COLLATE Cyrillic_General_CS_AS = upper(@ch2) + THEN 'OUKHTSCHIA' + WHEN @ch1 COLLATE Cyrillic_General_CS_AS = upper(@ch1) + THEN 'OuKhTsChIa' + ELSE 'oukhtschia' + END, J1 * 2 - 1, 2) + WHEN J11 > 0 + THEN SUBSTRING(CASE + WHEN @ch2 COLLATE Cyrillic_General_CS_AS = upper(@ch2) + THEN 'TCHIOU' + WHEN @ch1 COLLATE Cyrillic_General_CS_AS = upper(@ch1) + THEN 'TchIou' + ELSE 'tchiou' + END, J11 * J11, 3) + WHEN J0 > 0 + THEN SUBSTRING(CASE + WHEN @ch1 COLLATE Cyrillic_General_CS_AS = upper(@ch1) + THEN 'ABVGDEEJZIYKLMNOPRSTFYE' + ELSE 'abvgdeejziyklmnoprstfye' + END, J0, 1) + ELSE CASE + WHEN @ch2 COLLATE Cyrillic_General_CS_AS = upper(@ch2) + THEN REPLACE(@ch1, 'Щ', 'SHTCH') + WHEN @ch1 COLLATE Cyrillic_General_CS_AS = upper(@ch1) + THEN REPLACE(@ch1, 'Щ', 'Shtch') + ELSE REPLACE(@ch1, 'щ', 'shtch') + END + END + ,@counter = @counter + CASE + WHEN J2 + J3 + J4 + J6 + J7 + J8 > 0 + THEN 2 + ELSE 1 + END + FROM ( + SELECT PATINDEX('%|' + SUBSTRING(UPPER(@inputString), @counter, 3 ) + '|%', '|ИН |ИН,|ИН.|ИН;|ИН:|') AS J8 -- Фамилия на "ин" пишутся с "e" - Vassine - Васин. + , PATINDEX('%|' + SUBSTRING(UPPER(@inputString), @counter, 2 ) + '|%', '|ЬЕ|ЬЁ|') AS J7 -- Если в фамилии после "ь" следует "e", то пишется "ie" + , PATINDEX('%|' + SUBSTRING(UPPER(@inputString), @counter, 2 ) + '|%', '|КС|') AS J6 -- Сочетание "кс" во французском тексте пишется как "х" + , PATINDEX('%|' + SUBSTRING(UPPER(@inputString), @counter - 1, 3) + '|%', '|' + @str) AS J5 -- С - между двумя гласными выражается - ss + , PATINDEX('%|' + SUBSTRING(UPPER(@inputString), @counter, 2) + '|%', '|ГЯ|') AS J4 --G,g перед e, i, у пишется с "u" (gue, gui, guy) + , PATINDEX('%|' + SUBSTRING(UPPER(@inputString), @counter, 2) + '|%', '|ГЮ|') AS J3 --G,g перед e, i, у пишется с "u" (gue, gui, guy) + , PATINDEX('%|' + SUBSTRING(UPPER(@inputString), @counter, 2) + '|%', '|ГЕ||ГЭ||ГИ||ГЙ||ГЫ|') AS J2 --G,g перед e, i, у пишется с "u" (gue, gui, guy) + , PATINDEX('%' + SUBSTRING(UPPER(@inputString), @counter, 1) + '%', 'УХЦШЯ') AS J1 + , PATINDEX('%' + SUBSTRING(UPPER(@inputString), @counter, 1) + '%', 'ЧЮ') AS J11 + , PATINDEX('%' + SUBSTRING(UPPER(@inputString), @counter, 1) + '%', 'АБВГДЕЁЖЗИЙКЛМНОПРСТФЫЭЪЬ') AS J0 + ) J + END; + + INSERT INTO @result_table + SELECT 1 + ,@outputstring; + + /*------ 2 - в соответствии с ГОСТ Р 52535.1-2006 -----------------*/ + SELECT @counter = 1 + ,@outputstring = ''; + + WHILE (@counter <= len(@inputString)) + BEGIN + SELECT @ch1 = SUBSTRING(@inputString, @counter, 1) + + SELECT @ch2 = SUBSTRING(@inputString, @counter, 2) + + SELECT @outputstring = @outputstring + CASE + WHEN J1 > 0 + THEN SUBSTRING(CASE + WHEN @ch2 COLLATE Cyrillic_General_CS_AS = upper(@ch2) + THEN 'ZHKHTCCHSHIAIU' + WHEN @ch1 COLLATE Cyrillic_General_CS_AS = upper(@ch1) + THEN 'ZhKhTcChShIaIu' + ELSE 'zhkhtcchshiaiu' + END, J1 * 2 - 1, 2) + WHEN J0 > 0 + THEN SUBSTRING(CASE + WHEN @ch1 COLLATE Cyrillic_General_CS_AS = upper(@ch1) + THEN 'ABVGDEEZIIKLMNOPRSTUFYE' + ELSE 'abvgdeeziiklmnoprstufye' + END, J0, 1) + ELSE CASE + WHEN @ch2 COLLATE Cyrillic_General_CS_AS = UPPER(@ch2) + THEN REPLACE(@ch1, 'Щ', 'SHCH') + WHEN @ch1 COLLATE Cyrillic_General_CS_AS = UPPER(@ch1) + THEN REPLACE(@ch1, 'Щ', 'Shch') + ELSE REPLACE(@ch1, 'щ', 'shch') + END + END + ,@counter = @counter + 1 + FROM ( + SELECT PATINDEX('%' + UPPER(@ch1) + '%', 'ЖХЦЧШЯЮ') AS J1 + ,PATINDEX('%' + UPPER(@ch1) + '%', 'АБВГДЕЁЗИЙКЛМНОПРСТУФЫЭЪЬ') AS J0 + ) J + END; + + INSERT INTO @result_table ( + id + ,translate + ) + SELECT 2 + ,@outputstring + + /* 3 - в соответствии с п. 97 приказа ФМС России N 320 от 15 октября 2012 г.[10] + в соответствии с рекомендованным ИКАО международным стандартом (Doc 9303, часть 1, добавлении 9 к разделу IV) */ + SELECT @counter = 1 + ,@outputstring = ''; + + WHILE (@counter <= len(@inputString)) + BEGIN + SELECT @ch1 = SUBSTRING(@inputString, @counter, 1); + + SELECT @ch2 = SUBSTRING(@inputString, @counter, 2); + + SELECT @outputstring = @outputstring + CASE + WHEN J1 > 0 + THEN SUBSTRING(CASE + WHEN @ch1 COLLATE Cyrillic_General_CS_AS = upper(@ch1) + THEN 'ZHKHTSCHSHIAIUIE' + ELSE 'zhkhtschshiaiuie' + END, J1 * 2 - 1, 2) + WHEN J0 > 0 + THEN SUBSTRING(CASE + WHEN @ch1 COLLATE Cyrillic_General_CS_AS = upper(@ch1) + THEN 'ABVGDEEZIYKLMNOPRSTUFYE' + ELSE 'abvgdeeziyklmnoprstufye' + END, J0, 1) + ELSE CASE + WHEN @ch2 COLLATE Cyrillic_General_CS_AS = upper(@ch2) + THEN REPLACE(@ch1, 'Щ', 'SHCH') + WHEN @ch1 COLLATE Cyrillic_General_CS_AS = upper(@ch1) + THEN REPLACE(@ch1, 'Щ', 'Shch') + ELSE REPLACE(@ch1, 'щ', 'shch') + END + END + ,@counter = @counter + 1 + FROM ( + SELECT PATINDEX('%' + UPPER(@ch1) + '%', 'ЖХЦЧШЯЮЪ') AS J1 + ,PATINDEX('%' + UPPER(@ch1) + '%', 'АБВГДЕЁЗИЙКЛМНОПРСТУФЫЭЬ') AS J0 + ) J + END; + + INSERT INTO @result_table ( + id + ,translate + ) + SELECT 3 + ,@outputstring; + + -------- вывод результата ------------------------ + SELECT * + FROM @result_table + WHERE ( + @transid IS NOT NULL + AND id = @transid + ) + OR ( + id IS NOT NULL + AND @transid IS NULL + ); +END TRY + +BEGIN CATCH + THROW + + PRINT 'Error: ' + CONVERT(VARCHAR(50), ERROR_NUMBER()) + + ', Severity: ' + CONVERT(VARCHAR(5), ERROR_SEVERITY()) + + ', State: ' + CONVERT(VARCHAR(5), ERROR_STATE()) + + ', Procedure: ' + ISNULL(ERROR_PROCEDURE(), '-') + + ', Line: ' + CONVERT(VARCHAR(5), ERROR_LINE()) + + ', User name: ' + CONVERT(SYSNAME, ORIGINAL_LOGIN()); + PRINT ERROR_MESSAGE(); +END CATCH; +GO diff --git a/Stored_Procedure/usp_UnusedInputParameters.sql b/Stored_Procedure/dbo.usp_UnusedInputParameters.sql similarity index 100% rename from Stored_Procedure/usp_UnusedInputParameters.sql rename to Stored_Procedure/dbo.usp_UnusedInputParameters.sql diff --git a/Stored_Procedure/dbo.usp_bcpTableUnload.sql b/Stored_Procedure/dbo.usp_bcpTableUnload.sql new file mode 100644 index 00000000..02d10fc4 --- /dev/null +++ b/Stored_Procedure/dbo.usp_bcpTableUnload.sql @@ -0,0 +1,203 @@ +IF OBJECT_ID('dbo.usp_bcpTableUnload', 'P') IS NULL EXECUTE ('CREATE PROCEDURE dbo.usp_bcpTableUnload AS SELECT 1'); +GO + +ALTER PROCEDURE [dbo].[usp_bcpTableUnload]( + @path NVARCHAR(900) + , @serverName SYSNAME = @@SERVERNAME + , @databaseName SYSNAME + , @schemaName SYSNAME + , @tableName SYSNAME + , @field_term NVARCHAR(10) = N'|' + , @row_term NVARCHAR(10) = N'\n' + , @fileExtension NVARCHAR(10) = N'txt' + , @codePage NVARCHAR(10) = N'C65001' + , @excludeColumns NVARCHAR(MAX) = N'' + , @orderByColumns NVARCHAR(MAX) = N'' + , @outputColumnHeaders BIT = 1 + , @savePhysicalOrder BIT = 1 -- 0 - Alphabet column order type; 1 - physical column order type + , @formatFile VARCHAR(4) = 'xml' -- formatfile = @schemaName.@tableName.fmt, -x formatfile = @schemaName.@tableName.xml, blank string without generation format file + , @collation VARCHAR(128) = '' -- blank for keep blank value in formatfile (formatfile value 1 needed) + , @debug BIT = 0 +) +AS +/* +bcp docs: https://docs.microsoft.com/en-us/sql/tools/bcp-utility +-- To allow advanced options to be changed. +EXEC sp_configure 'show advanced options', 1; +GO +-- To update the currently configured value for advanced options. +RECONFIGURE; +GO +-- To enable the feature. +EXEC sp_configure 'xp_cmdshell', 1; +GO +-- To update the currently configured value for this feature. +RECONFIGURE; +GO +EXECUTE [dbo].[usp_bcpTableUnload] + @path = N'd:\' + , @databaseName = N'DatabaseName' + , @schemaName = N'dbo' + , @tableName = N'TableName' + , @field_term = N'|' + , @row_term = N'\n' + , @fileExtension = N'txt' + , @excludeColumns = N'[CreatedDate],[ModifiedDate],[UserID]' + , @orderByColumns = N'TableNameID' + , @outputColumnHeaders = 1 + , @formatFile = N'xml' + , @debug = 0; +*/ +BEGIN + + BEGIN TRY + IF @debug = 0 SET NOCOUNT ON; + + DECLARE @tsqlCommand NVARCHAR(MAX) = ''; + DECLARE @cmdCommand VARCHAR(8000) = ''; + DECLARE @ParmDefinition NVARCHAR(500) = '@object_idIN INTEGER, @ColumnsOUT VARCHAR(MAX) OUTPUT'; + DECLARE @tableFullName SYSNAME = QUOTENAME(@databaseName) + '.' + QUOTENAME(@schemaName) + '.' + QUOTENAME(@tableName); + DECLARE @object_id INTEGER = OBJECT_ID(@tableFullName); + DECLARE @Columns NVARCHAR(MAX) = ''; + DECLARE @collation_count INTEGER; + DECLARE @current_collation VARCHAR(128) = ''; + DECLARE @CollParmDefinition NVARCHAR(500) = '@OUT VARCHAR(128) OUTPUT'; + DECLARE @filePath NVARCHAR(900) = @path + @tableFullName + '.' + @fileExtension; + DECLARE @crlf NVARCHAR(10) = CHAR(13); + DECLARE @orderByColumns_term NVARCHAR(10) = ','; + DECLARE @TROW50000 NVARCHAR(MAX) = 'Table ' + @tableFullName + ' is not exists in database ' + QUOTENAME(@databaseName) + '!!!'; + DECLARE @TROW50001 NVARCHAR(MAX) = 'Some columns in @orderByColumns = {' + @orderByColumns + '} not exists in table ' + @tableFullName + '!!!'; + + IF @debug = 1 PRINT ISNULL('/******* Start Debug' + @crlf + '@tableFullName = {' + CAST(@tableFullName AS NVARCHAR(MAX)) + '}', '@tableFullName = {Null}'); + IF @debug = 1 PRINT ISNULL('@object_id = {' + CAST(@object_id AS NVARCHAR(MAX)) + '}', '@object_id = {Null}'); + + IF @formatFile NOT IN ('', 'xml', 'fmt') THROW 50002, 'Allowed values for parameter @formatFile is xml, fmt or blank value', 1; + --IF @formatFile IN ('xml', 'fmt') AND @savePhysicalOrder <> 1 THROW 50003, 'Creating format file without @savePhysicalOrder = 1 parameter not allowed', 1; + IF @formatFile = '' AND @collation <> '' THROW 50004, 'Using collation parameter not allowed without formatile', 1; + IF @collation <> '' + BEGIN + SET @tsqlCommand = N'select @OUT=COUNT(*) + from sys.fn_helpcollations() + WHERE name = ''' + @collation+ ''';'; + IF @debug = 1 PRINT CAST(ISNULL('@tsqlCommand = {' + @crlf + @tsqlCommand + @crlf + '}', '@tsqlCommand = {Null}' + @crlf) AS TEXT); + EXECUTE sp_executesql @tsqlCommand, @CollParmDefinition, @OUT=@collation_count OUTPUT; + IF @collation_count=0 THROW 50004, 'Defined collation not found in server collations list', 1; + END; + + IF @object_id IS NULL THROW 50000, @TROW50000, 1 + IF @orderByColumns <> '' + BEGIN + SET @tsqlCommand = N'USE ' + @databaseName + ';' + @crlf + + N'SELECT @ColumnsOUT = COUNT(*)' + @crlf + + N'FROM sys.columns sac ' + @crlf + + N'WHERE sac.object_id = @object_idIN' + @crlf + + N' AND QUOTENAME(Name) IN (''[' + REPLACE(@orderByColumns, ',', ']'',''[') + ']'');' + @crlf; + + IF @debug = 1 PRINT ISNULL(N'@tsqlCommand = {' + @crlf + @tsqlCommand + @crlf + N'}', N'@tsqlCommand = {Null}'); + EXECUTE sp_executesql @tsqlCommand, @ParmDefinition, @object_idIN = @object_id, @ColumnsOUT = @Columns OUTPUT SELECT @Columns; + IF @Columns <> (DATALENGTH(@orderByColumns) - DATALENGTH(Replace(@orderByColumns, @orderByColumns_term, ''))) / DATALENGTH(@orderByColumns_term) + 1 + THROW 50001, @TROW50001, 1; + SET @Columns = ''; + END; + + SET @tsqlCommand = N'USE ' + @databaseName + ';' + @crlf + + N'SELECT @ColumnsOUT = @ColumnsOUT + QUOTENAME(Name) + '',''' + @crlf + + N'FROM sys.columns sac ' + @crlf + + N'WHERE sac.object_id = @object_idIN' + @crlf + + N' AND QUOTENAME(Name) NOT IN (''' + REPLACE(@excludeColumns, ',', ''',''') + ''') + __row_order__;'; + + IF @savePhysicalOrder = 1 SET @tsqlCommand = REPLACE(@tsqlCommand, '__row_order__', ''); + ELSE SET @tsqlCommand = REPLACE(@tsqlCommand, '__row_order__', 'ORDER BY Name'); + + IF @debug = 1 PRINT ISNULL(N'@tsqlCommand = {' + @crlf + @tsqlCommand + @crlf + N'}', N'@tsqlCommand = {Null}'); + EXECUTE sp_executesql @tsqlCommand, @ParmDefinition, @object_idIN = @object_id, @ColumnsOUT = @Columns OUTPUT SELECT @Columns; + + IF @debug = 1 PRINT ISNULL('@Columns = {' + @crlf + @Columns + @crlf + '}', '@Columns = {Null}'); + + SET @Columns = CASE WHEN LEN(@Columns) > 0 THEN LEFT(@Columns, LEN(@Columns) - 1) END; + + IF @debug = 1 PRINT CAST(ISNULL('@Columns = {' + @Columns + '}', '@Columns = {Null}') AS TEXT); + + SET @tsqlCommand = 'EXECUTE xp_cmdshell ' + '''bcp "SELECT ' + @Columns + ' FROM ' + @tableFullName + + CASE WHEN @orderByColumns <> '' THEN ' ORDER BY ' + @orderByColumns ELSE '' END + + '" queryout "' + @filePath + '" -T -S ' + @serverName +' -c -' + @codePage + + ' -t"' + @field_term + '"' + ' -r"' + @row_term + '"''' + @crlf; + + IF @debug = 1 PRINT CAST(ISNULL('@tsqlCommand = {' + @crlf + @tsqlCommand + @crlf + '}', '@tsqlCommand = {Null}' + @crlf) AS TEXT); + ELSE EXECUTE sp_executesql @tsqlCommand; + + IF @outputColumnHeaders = 1 + BEGIN + SET @tsqlCommand = 'EXECUTE xp_cmdshell ' + '''bcp "SELECT ''''' + REPLACE(@Columns, ',', @field_term) + + '''''" queryout "' + @path + @tableFullName + '_headers.' + @fileExtension + '" -T -S ' + + @serverName + ' -c -' + @codePage + ' -t"' + @field_term + '"' + + ' -r"' + @row_term + '"''' + @crlf; + IF @debug = 1 PRINT CAST(ISNULL('@tsqlCommand = {' + @crlf + @tsqlCommand + @crlf + '}', + '@tsqlCommand = {Null}' + @crlf) AS TEXT); + ELSE EXECUTE sp_executesql @tsqlCommand; + + SET @cmdCommand = 'copy /b "' + @path + @tableFullName + '_headers.' + @fileExtension + '" + "' + + @filePath + '" "' + @path + @tableFullName + '_headers.' + @fileExtension + + '" && ' + 'del "' + @filePath + '"' + + ' && ' + 'ren "' + @path + @tableFullName + '_headers.'+ @fileExtension + '" ' + QUOTENAME(@schemaName) + '.' + QUOTENAME(@tableName) + '.' + @fileExtension; + IF @debug = 1 PRINT CAST(ISNULL('@cmdCommand = {' + @crlf + @cmdCommand + @crlf + '}', '@cmdCommand = {Null}' + @crlf) AS TEXT); + ELSE EXECUTE xp_cmdshell @cmdCommand; + + END + + IF @formatFile IN ('xml', 'fmt') + BEGIN + IF @savePhysicalOrder = 1 SET @tsqlCommand = 'EXECUTE xp_cmdshell ''bcp __full_table_name__ format nul -c -f "__path____filename__del.__format_file__ -t"|" -T'''; + ELSE SET @tsqlCommand = +'IF OBJECT_ID(''__databaseName__.__schemaTableName__'') IS NOT NULL DROP TABLE __schemaTableName__; SELECT __Columns__ INTO __schemaTableName__ FROM __full_table_name__ WHERE 1=2; EXECUTE xp_cmdshell ''bcp __databaseName__.__schemaTableName__ format nul -c -f "__path____filename__del.__format_file__ -t"|" -T'';DROP TABLE __schemaTableName__;' + SET @tsqlCommand = REPLACE(@tsqlCommand, '__databaseName__', QUOTENAME(@databaseName)); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__Columns__', @Columns); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__schemaTableName__', QUOTENAME(@schemaName) + '.' + QUOTENAME(CASE WHEN @savePhysicalOrder = 1 THEN @tableName WHEN @savePhysicalOrder = 0 THEN 'tmp' + @tableName END)); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__filename__', QUOTENAME(@schemaName) + '.' + QUOTENAME(@tableName)); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__path__', @path); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__format_file__', CASE WHEN @formatFile = 'xml' THEN 'xml" -x' WHEN @formatFile = 'fmt' THEN 'fmt"' END); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__full_table_name__', @tableFullName); + IF @debug = 1 PRINT CAST(ISNULL('@tsqlCommand = {' + @crlf + @tsqlCommand + @crlf + '}', '@tsqlCommand = {Null}' + @crlf) AS TEXT); + ELSE EXECUTE sp_executesql @tsqlCommand; + END + + IF @formatFile in ('xml', 'fmt') + BEGIN + + SET @tsqlCommand = N'select @OUT=CONVERT(VARCHAR(128), DATABASEPROPERTYEX(''__database_name__'', ''collation''));'; + SET @tsqlCommand = REPLACE(@tsqlCommand, '__database_name__', @databaseName); + IF @debug = 1 PRINT CAST(ISNULL('@tsqlCommand = {' + @crlf + @tsqlCommand + @crlf + '}', '@tsqlCommand = {Null}' + @crlf) AS TEXT); + EXECUTE sp_executesql @tsqlCommand, @CollParmDefinition, @OUT=@current_collation OUTPUT; + + SET @tsqlCommand = N'EXECUTE xp_cmdshell ''bcp "SELECT REPLACE(BulkColumn, ''''__replace__'''', ''''__collation__'''') AS BulkColumn FROM OPENROWSET(BULK ''''__path____filename__del.__formatFile__'''', __LOB__) as x" queryout "__path____filename__.__formatFile__" -c -T'''; + SET @tsqlCommand = REPLACE(@tsqlCommand, '__LOB__', CASE WHEN @formatFile = 'xml' THEN 'SINGLE_NCLOB' WHEN @formatFile = 'fmt' THEN 'SINGLE_CLOB' END); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__replace__', @current_collation); --'Cyrillic_General_CS_AS' + SET @tsqlCommand = REPLACE(@tsqlCommand, '__filename__', QUOTENAME(@schemaName) + '.' + QUOTENAME(@tableName)); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__formatFile__', @formatFile); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__path__', @path); + SET @tsqlCommand = REPLACE(@tsqlCommand, '__collation__', CASE WHEN @collation = '' AND @formatFile='fmt' THEN '""""' WHEN @collation = '' AND @formatFile = 'xml' THEN '' ELSE @collation END); + IF @debug = 1 PRINT CAST(ISNULL('@tsqlCommand = {' + @crlf + @tsqlCommand + @crlf + '}', '@tsqlCommand = {Null}' + @crlf) AS TEXT); + ELSE EXECUTE sp_executesql @tsqlCommand; + + SET @cmdCommand = 'del "' + @path + QUOTENAME(@schemaName) + '.' + QUOTENAME(@tableName) + 'del.' + @formatFile; + IF @debug = 1 PRINT CAST(ISNULL('@cmdCommand = {' + @crlf + @cmdCommand + @crlf + '}', '@cmdCommand = {Null}' + @crlf) AS TEXT); + ELSE EXECUTE xp_cmdshell @cmdCommand; + END + + IF @debug = 1 PRINT '--End Deubg*********/'; + ELSE SET NOCOUNT OFF; + END TRY + + BEGIN CATCH + --EXECUTE dbo.usp_LogError; + PRINT 'Error: ' + CONVERT(varchar(50), ERROR_NUMBER()) + + ', Severity: ' + CONVERT(varchar(5), ERROR_SEVERITY()) + + ', State: ' + CONVERT(varchar(5), ERROR_STATE()) + + ', Procedure: ' + ISNULL(ERROR_PROCEDURE(), '-') + + ', Line: ' + CONVERT(varchar(5), ERROR_LINE()) + + ', User name: ' + CONVERT(sysname, CURRENT_USER); + PRINT ERROR_MESSAGE(); + END CATCH +END; +GO diff --git a/Stored_Procedure/usp_bcpTableUnloadBatchMode.sql b/Stored_Procedure/dbo.usp_bcpTableUnloadBatchMode.sql similarity index 100% rename from Stored_Procedure/usp_bcpTableUnloadBatchMode.sql rename to Stored_Procedure/dbo.usp_bcpTableUnloadBatchMode.sql diff --git a/Stored_Procedure/usp_bcpUnloadSelect.sql b/Stored_Procedure/dbo.usp_bcpUnloadSelect.sql similarity index 94% rename from Stored_Procedure/usp_bcpUnloadSelect.sql rename to Stored_Procedure/dbo.usp_bcpUnloadSelect.sql index 1d89b85e..cd461c78 100644 --- a/Stored_Procedure/usp_bcpUnloadSelect.sql +++ b/Stored_Procedure/dbo.usp_bcpUnloadSelect.sql @@ -1,7 +1,7 @@ -IF OBJECT_ID('usp_bcpUnloadSelect', 'P') IS NULL EXECUTE('CREATE PROCEDURE usp_bcpUnloadSelect AS SELECT 1'); +IF OBJECT_ID('dbo.usp_bcpUnloadSelect', 'P') IS NULL EXECUTE('CREATE PROCEDURE dbo.usp_bcpUnloadSelect AS SELECT 1'); GO -ALTER PROCEDURE usp_bcpUnloadSelect( +ALTER PROCEDURE dbo.usp_bcpUnloadSelect( @outputFilePath VARCHAR(255) -- The path can have from 1 through 255 characters, see documentation , @serverName SYSNAME = @@SERVERNAME , @sqlCommand VARCHAR(MAX) diff --git a/Stored_Procedure/dbo.usp_checkAllDatabases.sql b/Stored_Procedure/dbo.usp_checkAllDatabases.sql new file mode 100644 index 00000000..697726f0 --- /dev/null +++ b/Stored_Procedure/dbo.usp_checkAllDatabases.sql @@ -0,0 +1,37 @@ +/* +Original link: http://stevestedman.com/2015/09/dbcc-checkdb-all-databases/ +Author: Steve Stedman +*/ + +IF OBJECT_ID('dbo.usp_checkAllDatabases') IS NULL + EXEC sp_executesql N'CREATE PROCEDURE dbo.usp_checkAllDatabases AS SELECT 1;' +GO + +ALTER PROCEDURE usp_checkAllDatabases +AS +/* +EXEC usp_checkAllDatabases; +*/ +BEGIN + DECLARE @databaseList as CURSOR; + DECLARE @databaseName as NVARCHAR(500); + DECLARE @tsql AS NVARCHAR(500); + + SET @databaseList = CURSOR LOCAL FORWARD_ONLY STATIC READ_ONLY + FOR + SELECT QUOTENAME([name]) + FROM sys.databases + WHERE [state] = 0 + AND [is_read_only] = 0; + OPEN @databaseList; + FETCH NEXT FROM @databaseList into @databaseName; + WHILE @@FETCH_STATUS = 0 + BEGIN + SET @tsql = N'DBCC CheckDB(' + @databaseName + ') WITH NO_INFOMSGS;'; + EXECUTE (@tsql); + FETCH NEXT FROM @databaseList into @databaseName; + END + CLOSE @databaseList; + DEALLOCATE @databaseList; +END +GO diff --git a/Stored_Procedure/dbo.usp_generateIdentifier.sql b/Stored_Procedure/dbo.usp_generateIdentifier.sql new file mode 100644 index 00000000..b68e974c --- /dev/null +++ b/Stored_Procedure/dbo.usp_generateIdentifier.sql @@ -0,0 +1,91 @@ +/* +Author: Remus Rusanu +Original link: https://stackoverflow.com/questions/1324063/generating-random-strings-with-t-sql/1324390#1324390 +Desctiption: Generating random strings with T-SQL +*/ + +IF OBJECT_ID('dbo.usp_generateIdentifier', 'P') IS NULL +EXECUTE('CREATE PROCEDURE dbo.usp_generateIdentifier as SELECT 1'); +GO + +alter procedure dbo.usp_generateIdentifier + @minLen int = 1 + , @maxLen int = 256 + , @seed int output + , @string varchar(8000) output +as +begin + set nocount on; + declare @length int; + declare @alpha varchar(8000) + , @digit varchar(8000) + , @specials varchar(8000) + , @first varchar(8000) + declare @step bigint = rand(@seed) * 2147483647; + + select @alpha = 'qwertyuiopasdfghjklzxcvbnm' + , @digit = '1234567890' + , @specials = '_@# ' + select @first = @alpha + '_@'; + + set @seed = (rand((@seed+@step)%2147483647)*2147483647); + + select @length = @minLen + rand(@seed) * (@maxLen-@minLen) + , @seed = (rand((@seed+@step)%2147483647)*2147483647); + + declare @dice int; + select @dice = rand(@seed) * len(@first), + @seed = (rand((@seed+@step)%2147483647)*2147483647); + select @string = substring(@first, @dice, 1); + + while 0 < @length + begin + select @dice = rand(@seed) * 100 + , @seed = (rand((@seed+@step)%2147483647)*2147483647); + if (@dice < 10) -- 10% special chars + begin + select @dice = rand(@seed) * len(@specials)+1 + , @seed = (rand((@seed+@step)%2147483647)*2147483647); + select @string = @string + substring(@specials, @dice, 1); + end + else if (@dice < 10+10) -- 10% digits + begin + select @dice = rand(@seed) * len(@digit)+1 + , @seed = (rand((@seed+@step)%2147483647)*2147483647); + select @string = @string + substring(@digit, @dice, 1); + end + else -- rest 80% alpha + begin + declare @preseed int = @seed; + select @dice = rand(@seed) * len(@alpha)+1 + , @seed = (rand((@seed+@step)%2147483647)*2147483647); + + select @string = @string + substring(@alpha, @dice, 1); + end + + select @length = @length - 1; + end +end +go + +/* +When running the tests the caller generates a random seed it associates with the test run (saves it in the results table), then passed along the seed, similar to this: + +declare @seed int; +declare @string varchar(256); + +select @seed = 1234; -- saved start seed + +exec usp_generateIdentifier + @seed = @seed output + , @string = @string output; +print @string; +exec usp_generateIdentifier + @seed = @seed output + , @string = @string output; +print @string; +exec usp_generateIdentifier + @seed = @seed output + , @string = @string output; +print @string; +*/ diff --git a/Stored_Procedure/dbo.usp_who5.sql b/Stored_Procedure/dbo.usp_who5.sql new file mode 100644 index 00000000..0be7071b --- /dev/null +++ b/Stored_Procedure/dbo.usp_who5.sql @@ -0,0 +1,1651 @@ +SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED +SET NOCOUNT ON + + +----------------------------------------------------------------------------------------------------------------------------- +-- Error Trapping: Check If Procedure Already Exists And Create Shell If Applicable +----------------------------------------------------------------------------------------------------------------------------- + +IF OBJECT_ID (N'dbo.usp_who5', N'P') IS NULL +BEGIN + + EXECUTE (N'CREATE PROCEDURE dbo.usp_who5 AS SELECT 1 AS shell') + +END +GO + + +----------------------------------------------------------------------------------------------------------------------------- +-- Stored Procedure Details: Listing Of Standard Details Related To The Stored Procedure +----------------------------------------------------------------------------------------------------------------------------- + +-- Purpose: Return Information Regarding Current Users / Sessions / Processes On A SQL Server Instance +-- Create Date (MM/DD/YYYY): 10/27/2009 +-- Developer: Sean Smith (s.smith.sql AT gmail DOT com) +-- Latest Release: http://www.sqlservercentral.com/scripts/sp_who/68607/ +-- Script Library: http://www.sqlservercentral.com/Authors/Scripts/Sean_Smith/776614/ +-- LinkedIn Profile: https://www.linkedin.com/in/seanmsmith/ + + +----------------------------------------------------------------------------------------------------------------------------- +-- Modification History: Listing Of All Modifications Since Original Implementation +----------------------------------------------------------------------------------------------------------------------------- + +-- Description: Added "@Database_Name" Filter Variable +-- : Added "Last_Wait_Type", "Query_Plan", And "Wait_Type" Fields To Output +-- : Changed Code Formatting +-- : Converted Script To Dynamic-SQL +-- Date (MM/DD/YYYY): 08/08/2011 + + +-- Description: Added "C" Type "@Filter" Option +-- : Added "Plan_Cache_Object_Type", "Plan_Object_Type", "Plan_Times_Used", And "Plan_Size_MB" Fields To Output +-- : Changed Help Output From RAISERROR To PRINT +-- : Merged "I?" And "O?" Help Parameters Into "?" +-- : Renamed Input Parameters +-- : Rewrote Time Calculation Logic +-- Date (MM/DD/YYYY): 11/09/2011 + + +-- Description: Added "SQL_Statement_Current" And "End_Of_Batch" Fields To Output +-- : Added System Process Indicator To "SPID" +-- : Expanded "Running" Type Indicators +-- Date (MM/DD/YYYY): 02/01/2012 + + +-- Description: Bug Fixes +-- : Changed Code Formatting +-- : Changed Date Calculation Method +-- Date (MM/DD/YYYY): 08/19/2013 + + +-- Description: Added "Batch_Pct", "Command_Completion", "Command_Pct", "Command_Time_Left", "Deadlock_Priority", "Isolation_Level", "Last_Row_Count", "Lock_Details", "Lock_Timeout_Seconds", And "Previous_Error" Fields To Output +-- Date (MM/DD/YYYY): 11/24/2013 + + +-- Description: Massive Rewrite Of Entire Stored Procedure +-- Date (MM/DD/YYYY): 11/28/2015 + + +-- Description: Added "Log_Database_Count", "Log_Details", "Log_Records_All", "Log_Reserved_MB_All", "Log_Used_MB_All", "TempDB_Session_Current_MB", "TempDB_Session_Total_MB", "TempDB_Task_Current_MB", "TempDB_Task_Total_MB", "Threads", "Transaction_ID", "Transaction_State", "Transaction_Time", "Transaction_Type" Fields To Output +-- : Added Deadlock Detection To "Blocking" Output Field +-- : No Longer Displays Results At The Execution Context ID (ECID) Level +-- : Removed "@SQL_Text" Filter Variable +-- : Removed "Batch_Pct", "End_Of_Batch", "Plan_Cache_Object_Type", "Plan_Object_Type", "Plan_Size_MB", "Plan_Times_Used", "Previous_Error" Fields From Output +-- : Renamed "SPECID" To "SPID", "Open_Trans" To "Transactions" Output Fields +-- Date (MM/DD/YYYY): 05/07/2016 + + +-- Description: Another Massive Rewrite Of Entire Stored Procedure To Improve Performance +-- Date (MM/DD/YYYY): 01/20/2018 + + +----------------------------------------------------------------------------------------------------------------------------- +-- Main Query: Create Procedure +----------------------------------------------------------------------------------------------------------------------------- + +ALTER PROCEDURE dbo.usp_who5 + + @Filter AS NVARCHAR (5) = NULL + ,@Database_Name AS NVARCHAR (512) = NULL + ,@Exclude_Lock AS BIT = 1 + ,@Exclude_Log AS BIT = 1 + ,@Exclude_Plan AS BIT = 1 + ,@Exclude_SQL AS BIT = 0 + ,@Exclude_SQL_XML AS BIT = 1 + ,@Exclude_TXN AS BIT = 1 + ,@Login AS NVARCHAR (128) = NULL + ,@SPID AS SMALLINT = NULL + +AS + +SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED +SET NOCOUNT ON +SET ANSI_WARNINGS OFF +SET ARITHABORT OFF +SET ARITHIGNORE ON +SET TEXTSIZE 2147483647 + + +----------------------------------------------------------------------------------------------------------------------------- +-- Declarations / Sets: Declare And Set Variables +----------------------------------------------------------------------------------------------------------------------------- + +DECLARE + @Ampersand AS NVARCHAR (1) + ,@CR_LF AS NCHAR (2) + ,@CR_LF_Tab AS NCHAR (3) + ,@Database_ID AS INT + ,@Date_Now AS DATETIME + ,@Filter_Active AS BIT + ,@Filter_Blocked AS BIT + ,@Filter_Sleeping AS BIT + ,@Filter_System AS BIT + ,@Plan_Handle AS VARBINARY (64) + ,@Print AS NVARCHAR (MAX) + ,@SQL_Handle AS VARBINARY (64) + ,@SQL_String AS NVARCHAR (MAX) + + +SET @Ampersand = N'&' + + +SET @CR_LF = NCHAR (13) + NCHAR (10) + + +SET @CR_LF_Tab = @CR_LF + NCHAR (9) + + +SET @Database_Name = NULLIF (@Database_Name, N'') + + +SET @Date_Now = GETDATE () + + +SET @Filter_Active = (CASE + WHEN @Filter LIKE N'%A%' THEN 1 + ELSE 0 + END) + + +SET @Filter_Blocked = (CASE + WHEN @Filter LIKE N'%B%' THEN 1 + ELSE 0 + END) + + +SET @Filter_Sleeping = (CASE + WHEN @Filter LIKE N'%S%' THEN 1 + ELSE 0 + END) + + +SET @Filter_System = (CASE + WHEN @Filter LIKE N'%X%' THEN 1 + ELSE 0 + END) + + +SET @Login = NULLIF (@Login, N'') + + +----------------------------------------------------------------------------------------------------------------------------- +-- Error Trapping: Check If "@Filter" Parameter Is An Input / Output Help Request +----------------------------------------------------------------------------------------------------------------------------- + +IF @Filter = N'?' +BEGIN + + SET @Print = + + N' +Optional input parameters: + + @Filter : Limit the result set by passing one or more values listed below (can be combined in any order) + + A - Active sessions only (includes sleeping SPIDs with open transactions) + B - Blocking / blocked sessions only + S - Exclude sleeping SPIDs with open transactions + X - Exclude system processes + + @Database_Name : Limit the result set to a specific database (use ---------- for NULL database names) + @Exclude_Lock : Suppress lock details from the output (can increases procedure performance on busy servers; defaulted to 1) + @Exclude_Log : Suppress log details from the output (can increases procedure performance on busy servers; defaulted to 1) + @Exclude_Plan : Suppress execution plan details from the output (can increases procedure performance on busy servers; defaulted to 1) + @Exclude_SQL : Suppress SQL statement details from the output (can increases procedure performance on busy servers; defaulted to 0) + @Exclude_SQL_XML : Suppress SQL statement XML details from the output (can increases procedure performance on busy servers; defaulted to 1) + @Exclude_TXN : Suppress transaction details from the output (also suppresses log details due to an interdependency; can increases procedure performance on busy servers; defaulted to 1) + @Login : Limit the result set to a specific Windows user name (if populated, otherwise by SQL Server login name) + @SPID : Limit the result set to a specific session + + +Notes: + + Blocking / blocked sessions will always be displayed first in the result set (when applicable) + + +Output: + + SPID : System Process ID + Database_Name : Database context of the session + Running : Indicates if the session is executing (X), waiting ([]), inactive (blank), inactive with open transactions (•), a background task (--), or not defined (N/A) + Blocking : Blocking indicator (includes type of block, SPID list, and deadlock detection when applicable) + Status : Status of the session -> request + Object_Name : Object being referenced (blank for ad hoc and prepared statements) + Command : Command executed + Threads : Process thread count + SQL_Statement_Batch : Batch statement of the session + SQL_Statement_Current : Current statement of the session + Isolation_Level : Isolation level of the session + Wait_Time : Current wait time (DAYS HH:MM:SS) + Wait_Type : Current wait type + Last_Wait_Type : Previous wait type + Elapsed_Time : Elapsed time since the request began (DAYS HH:MM:SS) + CPU_Total : CPU time used since login (DAYS HH:MM:SS) + CPU_Current : CPU time used for the current process (DAYS HH:MM:SS) + Logical_Reads_Total : Logical reads performed since login + Logical_Reads_Current : Logical reads performed by the current process + Physical_Reads_Total : Physical reads performed since login + Physical_Reads_Current : Physical reads performed by the current process + Writes_Total : Writes performed since login + Writes_Current : Writes performed by the current process + Last_Row_Count : Row count produced by the last statement executed + Allocated_Memory_MB : Memory allocated to the query in megabytes + Pages_Used : Pages in the procedure cache allocated to the process + Transactions : Open transactions for the process + Transaction_ID : Transaction ID + Transaction_Time : Elapsed time since the transaction began (DAYS HH:MM:SS) + Transaction_Type : Type of transaction + Transaction_State : State of the transaction + Nesting_Level : Nesting level of the statement executing + TempDB_Session_Total_MB : Temp DB space used since login for the session in megabytes + TempDB_Session_Current_MB : Temp DB space currently used by the session in megabytes + TempDB_Task_Total_MB : Temp DB space used by the entire task in megabytes + TempDB_Task_Current_MB : Temp DB space currently used by the task in megabytes + Log_Database_Count : Databases involved in the transaction + Log_Records_All : Log records generated for the transaction (all databases) + Log_Reserved_MB_All : Log space reserved for the transaction in megabytes (all databases) + Log_Used_MB_All : Log space used for the transaction in megabytes (all databases) + Log_Details : Log usage details for the transaction per database (in XML format) + Lock_Timeout_Seconds : Lock timeout of the session + Lock_Details : Lock details of the session (in XML format) + Deadlock_Priority : Deadlock priority of the session + SQL_Statement_Batch_XML : Same as "SQL_Statement_Batch" but in XML format + SQL_Statement_Current_XML : Same as "SQL_Statement_Current" but in XML format + SQL_Handle : Identifier for the executing batch or object + Query_Plan : Execution plan of the session (in XML format) + Plan_Handle : Identifier for the in-memory plan + Since_SPID_Login : Elapsed time since the client logged in (DAYS HH:MM:SS) + Since_Last_Batch_Start : Elapsed time since the last request began (DAYS HH:MM:SS) + Since_Last_Batch_End : Elapsed time since the last completion of a request (DAYS HH:MM:SS) + Command_Pct : Percentage of work completed (applies to a limited set of commands) + Command_Completion : Estimated completion time for the command + Command_Time_Left : Time left before the command completes (DAYS HH:MM:SS) + Host_Name : Name of the client workstation specific to a session + Login_ID : Windows user name (or "Login_Name" if user name is unavailable) + Login_Name : Full name of the user associated to the "Login_ID" + Application_Description : Application accessing SQL Server + System_Process : Indicates if the session is a system process + SPID : System Process ID + ' + + + PRINT SUBSTRING (@Print, 1, 3931) + + + PRINT SUBSTRING (@Print, 3934, 4000) + + + RETURN + +END + + +----------------------------------------------------------------------------------------------------------------------------- +-- Error Trapping: Check If Temp Table(s) Already Exist(s) And Drop If Applicable +----------------------------------------------------------------------------------------------------------------------------- + +IF OBJECT_ID (N'tempdb.dbo.#temp_core_data', N'U') IS NOT NULL +BEGIN + + DROP TABLE dbo.#temp_core_data + +END + + +IF OBJECT_ID (N'tempdb.dbo.#temp_databases', N'U') IS NOT NULL +BEGIN + + DROP TABLE dbo.#temp_databases + +END + + +IF OBJECT_ID (N'tempdb.dbo.#temp_deadlocking', N'U') IS NOT NULL +BEGIN + + DROP TABLE dbo.#temp_deadlocking + +END + + +IF OBJECT_ID (N'tempdb.dbo.#temp_false_positive_blocking', N'U') IS NOT NULL +BEGIN + + DROP TABLE dbo.#temp_false_positive_blocking + +END + + +IF OBJECT_ID (N'tempdb.dbo.#temp_lock_details', N'U') IS NOT NULL +BEGIN + + DROP TABLE dbo.#temp_lock_details + +END + + +IF OBJECT_ID (N'tempdb.dbo.#temp_log_details', N'U') IS NOT NULL +BEGIN + + DROP TABLE dbo.#temp_log_details + +END + + +IF OBJECT_ID (N'tempdb.dbo.#temp_parallelism', N'U') IS NOT NULL +BEGIN + + DROP TABLE dbo.#temp_parallelism + +END + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Creation: Create Various Temp Tables +----------------------------------------------------------------------------------------------------------------------------- + +CREATE TABLE dbo.#temp_databases + + ( + database_id INT NULL + ,database_name NVARCHAR (128) NULL + ) + + +CREATE TABLE dbo.#temp_lock_details + + ( + req_spid INT NULL + ,rsc_dbid SMALLINT NULL + ,rsc_objid INT NULL + ,rsc_indid SMALLINT NULL + ,[object_name] NVARCHAR (275) NULL + ,index_name NVARCHAR (128) NULL + ,rsc_type TINYINT NULL + ,req_mode TINYINT NULL + ,req_status TINYINT NULL + ,req_ownertype SMALLINT NULL + ,req_ecid INT NULL + ,req_refcnt INT NULL + ) + + +CREATE TABLE dbo.#temp_log_details + + ( + transaction_id BIGINT NULL + ,database_id INT NULL + ,database_transaction_begin_time DATETIME NULL + ,database_transaction_type INT NULL + ,database_transaction_state INT NULL + ,database_transaction_log_record_count BIGINT NULL + ,database_transaction_log_bytes_reserved BIGINT NULL + ,database_transaction_log_bytes_used BIGINT NULL + ,database_transaction_log_bytes_reserved_system INT NULL + ,database_transaction_log_bytes_used_system INT NULL + ) + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Insert: Databases +----------------------------------------------------------------------------------------------------------------------------- + +SET @Database_ID = -2147483648 + + +SET LOCK_TIMEOUT 5 + + +WHILE @Database_ID IS NOT NULL +BEGIN + + BEGIN TRY + + INSERT INTO dbo.#temp_databases + + ( + database_id + ,database_name + ) + + SELECT TOP (1) + DB.database_id + ,DB.name AS database_name + FROM + master.sys.databases DB + WHERE + DB.database_id = @Database_ID + + END TRY + BEGIN CATCH + + END CATCH + + + BEGIN TRY + + SET @Database_ID = (SELECT TOP (1) DB.database_id FROM master.sys.databases DB WHERE DB.database_id > @Database_ID ORDER BY DB.database_id) + + END TRY + BEGIN CATCH + + SET @Database_ID = @Database_ID + 1 + + END CATCH + +END + + +SET LOCK_TIMEOUT -1 + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Insert: Core Data +----------------------------------------------------------------------------------------------------------------------------- + +SELECT + DXS.session_id + ,ttDB.database_name + ,DER.blocking_session_id + ,DXS.[status] AS status_session + ,DER.[status] AS status_request + ,CONVERT (INT, NULL) AS [dbid] + ,CONVERT (INT, NULL) AS objectid + ,CONVERT (NVARCHAR (275), NULL) AS [object_name] + ,DER.command + ,sqSP.threads + ,CONVERT (NVARCHAR (MAX), NULL) AS [text] + ,sqSP.stmt_start + ,sqSP.stmt_end + ,DXS.transaction_isolation_level + ,DER.wait_time + ,DER.wait_type + ,DER.last_wait_type + ,DER.total_elapsed_time + ,DXS.cpu_time AS cpu_time_total + ,DER.cpu_time AS cpu_time_current + ,DXS.logical_reads AS logical_reads_total + ,DER.logical_reads AS logical_reads_current + ,DXS.reads AS reads_total + ,DER.reads AS reads_current + ,DXS.writes AS writes_total + ,DER.writes AS writes_current + ,DXS.row_count + ,DER.granted_query_memory + ,DXS.memory_usage + ,sqSP.open_tran + ,CONVERT (BIGINT, NULL) AS transaction_id + ,CONVERT (DATETIME, NULL) AS transaction_begin_time + ,CONVERT (INT, NULL) AS transaction_type + ,CONVERT (INT, NULL) AS transaction_state + ,DER.nest_level + ,sqTS.tempdb_page_allocation_session + ,sqTS.tempdb_page_deallocation_session + ,sqTT.tempdb_page_allocation_task + ,sqTT.tempdb_page_deallocation_task + ,DXS.[lock_timeout] + ,DXS.[deadlock_priority] + ,sqSP.[sql_handle] + ,CONVERT (XML, NULL) AS query_plan + ,DER.plan_handle + ,DXS.login_time AS login_time_sessions + ,sqSP.login_time AS login_time_processes + ,DXS.last_request_start_time + ,DXS.last_request_end_time + ,sqSP.last_batch + ,DER.percent_complete + ,DER.estimated_completion_time + ,DXS.[host_name] + ,DXS.nt_user_name + ,DXS.login_name + ,DXS.[program_name] + ,DXS.is_user_process +INTO + dbo.#temp_core_data +FROM + master.sys.dm_exec_sessions DXS + INNER JOIN + + ( + SELECT + SP.spid + ,SUM (CASE + WHEN SP.kpid = 0 THEN 0 + ELSE 1 + END) AS threads + ,MAX (SP.stmt_start) AS stmt_start + ,MAX (SP.stmt_end) AS stmt_end + ,MAX (SP.open_tran) AS open_tran + ,MAX (NULLIF (SP.[sql_handle], 0x0000000000000000000000000000000000000000)) AS [sql_handle] + ,MAX (SP.login_time) AS login_time + ,MAX (SP.last_batch) AS last_batch + ,MAX (SP.[dbid]) AS [dbid] + FROM + master.sys.sysprocesses SP + GROUP BY + SP.spid + ) sqSP ON sqSP.spid = DXS.session_id + + LEFT JOIN master.sys.dm_exec_requests DER ON DER.session_id = DXS.session_id + LEFT JOIN dbo.#temp_databases ttDB ON ttDB.database_id = sqSP.[dbid] + LEFT JOIN + + ( + SELECT + DDSSU.session_id + ,SUM (DDSSU.user_objects_alloc_page_count + DDSSU.internal_objects_alloc_page_count) AS tempdb_page_allocation_session + ,SUM (DDSSU.user_objects_dealloc_page_count + DDSSU.internal_objects_dealloc_page_count) AS tempdb_page_deallocation_session + FROM + master.sys.dm_db_session_space_usage DDSSU + GROUP BY + DDSSU.session_id + ) sqTS ON sqTS.session_id = DXS.session_id + + LEFT JOIN + + ( + SELECT + DDTSU.session_id + ,SUM (DDTSU.user_objects_alloc_page_count + DDTSU.internal_objects_alloc_page_count) AS tempdb_page_allocation_task + ,SUM (DDTSU.user_objects_dealloc_page_count + DDTSU.internal_objects_dealloc_page_count) AS tempdb_page_deallocation_task + FROM + master.sys.dm_db_task_space_usage DDTSU + GROUP BY + DDTSU.session_id + ) sqTT ON sqTT.session_id = DXS.session_id + +WHERE + ( + ( + ( + @Database_Name IS NULL + OR ISNULL (ttDB.database_name, N'----------') = @Database_Name + ) + AND + ( + @Filter_Active = 0 + OR (CASE + WHEN @Filter_Sleeping = 0 AND sqSP.open_tran > 0 THEN N'' + ELSE DXS.[status] + END) NOT IN (N'dormant', N'sleeping') + ) + AND + ( + @Filter_Blocked = 0 + OR DER.blocking_session_id <> 0 + ) + AND + ( + @Filter_System = 0 + OR DXS.is_user_process = 1 + ) + AND + ( + @Login IS NULL + OR DXS.nt_user_name = @Login + OR DXS.login_name = @Login + ) + AND + ( + @SPID IS NULL + OR DXS.session_id = @SPID + ) + ) + OR + ( + NULLIF (DER.blocking_session_id, 0) IS NOT NULL + OR EXISTS + + ( + SELECT + * + FROM + master.sys.dm_exec_requests XDER + WHERE + XDER.blocking_session_id <> 0 + AND XDER.blocking_session_id = DXS.session_id + ) + + ) + ) + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Update: Populate Transaction Details +----------------------------------------------------------------------------------------------------------------------------- + +IF @Exclude_TXN = 0 +BEGIN + + UPDATE + ttCD + SET + ttCD.transaction_id = DTST.transaction_id + ,ttCD.transaction_begin_time = DTAT.transaction_begin_time + ,ttCD.transaction_type = DTAT.transaction_type + ,ttCD.transaction_state = DTAT.transaction_state + FROM + dbo.#temp_core_data ttCD + INNER JOIN master.sys.dm_tran_session_transactions DTST ON DTST.session_id = ttCD.session_id + LEFT JOIN master.sys.dm_tran_active_transactions DTAT ON DTAT.transaction_id = DTST.transaction_id + +END + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Insert: Transaction Log Details +----------------------------------------------------------------------------------------------------------------------------- + +IF @Exclude_Log = 0 AND @Exclude_TXN = 0 +BEGIN + + INSERT INTO dbo.#temp_log_details + + ( + transaction_id + ,database_id + ,database_transaction_begin_time + ,database_transaction_type + ,database_transaction_state + ,database_transaction_log_record_count + ,database_transaction_log_bytes_reserved + ,database_transaction_log_bytes_used + ,database_transaction_log_bytes_reserved_system + ,database_transaction_log_bytes_used_system + ) + + SELECT + DTDT.transaction_id + ,DTDT.database_id + ,DTDT.database_transaction_begin_time + ,DTDT.database_transaction_type + ,DTDT.database_transaction_state + ,DTDT.database_transaction_log_record_count + ,DTDT.database_transaction_log_bytes_reserved + ,DTDT.database_transaction_log_bytes_used + ,DTDT.database_transaction_log_bytes_reserved_system + ,DTDT.database_transaction_log_bytes_used_system + FROM + master.sys.dm_tran_database_transactions DTDT + WHERE + EXISTS + + ( + SELECT + * + FROM + dbo.#temp_core_data ttCD + WHERE + ttCD.transaction_id = DTDT.transaction_id + ) + +END + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Insert: Lock Request Details +----------------------------------------------------------------------------------------------------------------------------- + +IF @Exclude_Lock = 0 +BEGIN + + INSERT INTO dbo.#temp_lock_details + + ( + req_spid + ,rsc_dbid + ,rsc_objid + ,rsc_indid + ,[object_name] + ,index_name + ,rsc_type + ,req_mode + ,req_status + ,req_ownertype + ,req_ecid + ,req_refcnt + ) + + SELECT + SLI.req_spid + ,SLI.rsc_dbid + ,SLI.rsc_objid + ,SLI.rsc_indid + ,CONVERT (NVARCHAR (275), NULL) AS [object_name] + ,CONVERT (NVARCHAR (128), NULL) AS index_name + ,SLI.rsc_type + ,SLI.req_mode + ,SLI.req_status + ,SLI.req_ownertype + ,SLI.req_ecid + ,SUM (SLI.req_refcnt) AS req_refcnt + FROM + master.sys.syslockinfo SLI + WHERE + EXISTS + + ( + SELECT + * + FROM + dbo.#temp_core_data ttCD + WHERE + ttCD.session_id = SLI.req_spid + ) + + GROUP BY + SLI.req_spid + ,SLI.rsc_dbid + ,SLI.rsc_objid + ,SLI.rsc_indid + ,SLI.rsc_type + ,SLI.req_mode + ,SLI.req_status + ,SLI.req_ownertype + ,SLI.req_ecid + +END + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Update: Attempt To Populate SQL Text Data And Object Details +----------------------------------------------------------------------------------------------------------------------------- + +IF @Exclude_SQL = 0 +BEGIN + + SET @SQL_Handle = (SELECT TOP (1) ttCD.[sql_handle] FROM dbo.#temp_core_data ttCD WHERE ttCD.[sql_handle] IS NOT NULL ORDER BY ttCD.[sql_handle]) + + + WHILE @SQL_Handle IS NOT NULL + BEGIN + + SET LOCK_TIMEOUT 5 + + + BEGIN TRY + + UPDATE + ttCD + SET + ttCD.[dbid] = (CASE + WHEN ttCD.[dbid] IS NULL AND ttCD.objectid IS NULL THEN DEST.[dbid] + ELSE ttCD.[dbid] + END) + ,ttCD.objectid = (CASE + WHEN ttCD.[dbid] IS NULL AND ttCD.objectid IS NULL THEN DEST.objectid + ELSE ttCD.objectid + END) + ,ttCD.[text] = DEST.[text] + FROM + dbo.#temp_core_data ttCD + CROSS APPLY master.sys.dm_exec_sql_text (ttCD.[sql_handle]) DEST + WHERE + ttCD.[sql_handle] = @SQL_Handle + + END TRY + BEGIN CATCH + + END CATCH + + + SET LOCK_TIMEOUT -1 + + + SET @SQL_Handle = (SELECT TOP (1) ttCD.[sql_handle] FROM dbo.#temp_core_data ttCD WHERE ttCD.[sql_handle] IS NOT NULL AND ttCD.[sql_handle] > @SQL_Handle ORDER BY ttCD.[sql_handle]) + + END + +END + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Update: Attempt To Populate Query Plan Data And Object Details +----------------------------------------------------------------------------------------------------------------------------- + +IF @Exclude_Plan = 0 +BEGIN + + SET @Plan_Handle = (SELECT TOP (1) ttCD.plan_handle FROM dbo.#temp_core_data ttCD WHERE ttCD.plan_handle IS NOT NULL ORDER BY ttCD.plan_handle) + + + WHILE @Plan_Handle IS NOT NULL + BEGIN + + SET LOCK_TIMEOUT 5 + + + BEGIN TRY + + UPDATE + ttCD + SET + ttCD.[dbid] = (CASE + WHEN ttCD.[dbid] IS NULL AND ttCD.objectid IS NULL THEN DEQP.[dbid] + ELSE ttCD.[dbid] + END) + ,ttCD.objectid = (CASE + WHEN ttCD.[dbid] IS NULL AND ttCD.objectid IS NULL THEN DEQP.objectid + ELSE ttCD.objectid + END) + ,ttCD.query_plan = DEQP.query_plan + FROM + dbo.#temp_core_data ttCD + CROSS APPLY master.sys.dm_exec_query_plan (ttCD.plan_handle) DEQP + WHERE + ttCD.plan_handle = @Plan_Handle + + END TRY + BEGIN CATCH + + END CATCH + + + SET LOCK_TIMEOUT -1 + + + SET @Plan_Handle = (SELECT TOP (1) ttCD.plan_handle FROM dbo.#temp_core_data ttCD WHERE ttCD.plan_handle IS NOT NULL AND ttCD.plan_handle > @Plan_Handle ORDER BY ttCD.plan_handle) + + END + +END + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Update: Attempt To Populate Object Name +----------------------------------------------------------------------------------------------------------------------------- + +IF (@Exclude_Plan = 0 OR @Exclude_SQL = 0) +BEGIN + + SET @Database_ID = (SELECT TOP (1) ttCD.[dbid] FROM dbo.#temp_core_data ttCD WHERE ttCD.[dbid] IS NOT NULL AND ttCD.objectid IS NOT NULL ORDER BY ttCD.[dbid]) + + + WHILE @Database_ID IS NOT NULL + BEGIN + + SET @SQL_String = + + N' + USE [' + (SELECT ttDB.database_name FROM dbo.#temp_databases ttDB WHERE ttDB.database_id = @Database_ID) + N'] + + + UPDATE + ttCD + SET + ttCD.[object_name] = N''['' + S.name + N''].['' + AO.name + N'']'' + FROM + dbo.#temp_core_data ttCD + INNER JOIN sys.all_objects AO ON AO.[object_id] = ttCD.objectid + INNER JOIN sys.schemas S ON S.[schema_id] = AO.[schema_id] + WHERE + ttCD.[dbid] = ' + CONVERT (NVARCHAR (11), @Database_ID) + N' + ' + + + IF @SQL_String IS NOT NULL + BEGIN + + SET LOCK_TIMEOUT 5 + + + BEGIN TRY + + EXECUTE (@SQL_String) + + END TRY + BEGIN CATCH + + END CATCH + + + SET LOCK_TIMEOUT -1 + + END + + + SET @Database_ID = (SELECT TOP (1) ttCD.[dbid] FROM dbo.#temp_core_data ttCD WHERE ttCD.[dbid] IS NOT NULL AND ttCD.objectid IS NOT NULL AND ttCD.[dbid] > @Database_ID ORDER BY ttCD.[dbid]) + + END + +END + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Update: Attempt To Populate Lock Details' Database Name / Object Name / Index Name +----------------------------------------------------------------------------------------------------------------------------- + +IF @Exclude_Lock = 0 +BEGIN + + SET @Database_ID = (SELECT TOP (1) ttLKD.rsc_dbid FROM dbo.#temp_lock_details ttLKD ORDER BY ttLKD.rsc_dbid) + + + WHILE @Database_ID IS NOT NULL + BEGIN + + SET @SQL_String = + + N' + USE [' + (SELECT ttDB.database_name FROM dbo.#temp_databases ttDB WHERE ttDB.database_id = @Database_ID) + N'] + + + UPDATE + ttLKD + SET + ttLKD.[object_name] = N''['' + S.name + N''].['' + AO.name + N'']'' + ,ttLKD.index_name = I.name + FROM + dbo.#temp_lock_details ttLKD + LEFT JOIN sys.all_objects AO ON AO.[object_id] = ttLKD.rsc_objid + LEFT JOIN sys.schemas S ON S.[schema_id] = AO.[schema_id] + LEFT JOIN sys.indexes I ON I.[object_id] = ttLKD.rsc_objid + AND I.index_id = ttLKD.rsc_indid + WHERE + ttLKD.rsc_dbid = ' + CONVERT (NVARCHAR (11), @Database_ID) + N' + ' + + + IF @SQL_String IS NOT NULL + BEGIN + + SET LOCK_TIMEOUT 5 + + + BEGIN TRY + + EXECUTE (@SQL_String) + + END TRY + BEGIN CATCH + + END CATCH + + + SET LOCK_TIMEOUT -1 + + END + + + SET @Database_ID = (SELECT TOP (1) ttLKD.rsc_dbid FROM dbo.#temp_lock_details ttLKD WHERE ttLKD.rsc_dbid > @Database_ID ORDER BY ttLKD.rsc_dbid) + + END + +END + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Insert: Identify False Positive Blocking Cause By Timing Issues +----------------------------------------------------------------------------------------------------------------------------- + +SELECT + ttCD.session_id + ,(CASE + WHEN caCB.matches_filter_criteria = 0 AND caCB.is_truly_blocked = 0 AND caCB.is_truly_blocking = 0 THEN N'D' + ELSE N'U' + END) AS modification_type +INTO + dbo.#temp_false_positive_blocking +FROM + dbo.#temp_core_data ttCD + LEFT JOIN dbo.#temp_core_data ttXCD ON ttXCD.session_id = ttCD.blocking_session_id + LEFT JOIN + + ( + SELECT DISTINCT + ttCD.blocking_session_id + FROM + dbo.#temp_core_data ttCD + ) sqBS ON sqBS.blocking_session_id = ttCD.session_id + + CROSS APPLY + + ( + SELECT + (CASE + WHEN @Filter_Blocked = 1 THEN 0 + WHEN ISNULL (ttCD.database_name, N'----------') <> @Database_Name THEN 0 + WHEN @Filter_Active = 1 AND (CASE + WHEN @Filter_Sleeping = 0 AND ttCD.open_tran > 0 THEN N'' + ELSE ttCD.status_session + END) IN (N'dormant', N'sleeping') THEN 0 + WHEN @Filter_System = 1 AND ttCD.is_user_process <> 1 THEN 0 + WHEN ISNULL (ttCD.nt_user_name, N'') <> @Login AND ttCD.login_name <> @Login THEN 0 + WHEN ttCD.session_id <> @SPID THEN 0 + ELSE 1 + END) AS matches_filter_criteria + ,(CASE + WHEN ttXCD.session_id IS NOT NULL THEN 1 + ELSE 0 + END) AS is_truly_blocked + ,(CASE + WHEN sqBS.blocking_session_id IS NOT NULL THEN 1 + ELSE 0 + END) AS is_truly_blocking + ) caCB + +WHERE + ( + ( + caCB.matches_filter_criteria = 0 + AND caCB.is_truly_blocked = 0 + AND caCB.is_truly_blocking = 0 + ) + OR + ( + ( + caCB.matches_filter_criteria = 1 + OR caCB.is_truly_blocking = 1 + ) + AND caCB.is_truly_blocked = 0 + AND NULLIF (ttCD.blocking_session_id, 0) IS NOT NULL + ) + ) + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Delete: Remove False Positives Which Meet Neither Filter Criteria Nor Block Chain Dependencies +----------------------------------------------------------------------------------------------------------------------------- + +DELETE + ttCD +FROM + dbo.#temp_core_data ttCD +WHERE + EXISTS + + ( + SELECT + * + FROM + dbo.#temp_false_positive_blocking ttFPB + WHERE + ttFPB.modification_type = N'D' + AND ttFPB.session_id = ttCD.session_id + ) + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Update: Update False Positives Which Meet Either Filter Criteria And / Or Block Chain Dependencies +----------------------------------------------------------------------------------------------------------------------------- + +UPDATE + ttCD +SET + ttCD.blocking_session_id = NULL +FROM + dbo.#temp_core_data ttCD +WHERE + EXISTS + + ( + SELECT + * + FROM + dbo.#temp_false_positive_blocking ttFPB + WHERE + ttFPB.modification_type = N'U' + AND ttFPB.session_id = ttCD.session_id + ) + + +IF OBJECT_ID (N'tempdb.dbo.#temp_false_positive_blocking', N'U') IS NOT NULL +BEGIN + + DROP TABLE dbo.#temp_false_positive_blocking + +END + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Insert: Identify Blocking SPIDs Which Are Deadlocking +----------------------------------------------------------------------------------------------------------------------------- + +SELECT + sqBL.session_id + ,sqBL.blocking_session_id +INTO + dbo.#temp_deadlocking +FROM + + ( + SELECT + ttCD.session_id + ,ttCD.blocking_session_id + FROM + dbo.#temp_core_data ttCD + WHERE + ttCD.blocking_session_id <> 0 + AND ttCD.session_id <> ttCD.blocking_session_id + + UNION ALL + + SELECT + ttCD.blocking_session_id AS session_id + ,ttCD.session_id AS blocking_session_id + FROM + dbo.#temp_core_data ttCD + WHERE + ttCD.blocking_session_id <> 0 + AND ttCD.session_id <> ttCD.blocking_session_id + ) sqBL + +GROUP BY + sqBL.session_id + ,sqBL.blocking_session_id +HAVING + COUNT (*) > 1 + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Insert: Identify Queries Running In Parallel With Threads Waiting For Others To Complete +----------------------------------------------------------------------------------------------------------------------------- + +SELECT + ttCD.session_id +INTO + dbo.#temp_parallelism +FROM + dbo.#temp_core_data ttCD +WHERE + ttCD.blocking_session_id <> 0 + AND ttCD.session_id = ttCD.blocking_session_id + + +----------------------------------------------------------------------------------------------------------------------------- +-- Table Update: Remove Specific Blocking Session IDs From The Main Blocking Group +----------------------------------------------------------------------------------------------------------------------------- + +UPDATE + ttCD +SET + ttCD.blocking_session_id = NULL +FROM + dbo.#temp_core_data ttCD +WHERE + ( + ttCD.blocking_session_id = 0 + OR EXISTS + + ( + SELECT + * + FROM + dbo.#temp_deadlocking ttD + WHERE + ttD.session_id = ttCD.session_id + ) + + OR EXISTS + + ( + SELECT + * + FROM + dbo.#temp_parallelism ttP + WHERE + ttP.session_id = ttCD.session_id + ) + ) + + +----------------------------------------------------------------------------------------------------------------------------- +-- Main Query: Final Display / Output +----------------------------------------------------------------------------------------------------------------------------- + +SELECT + caFL.spid AS SPID + ,ISNULL (ttCD.database_name, N'----------') AS Database_Name + ,REPLICATE (N' ', 5) + (CASE + WHEN caFL.status_session = N'BACKGROUND' THEN N'---' + WHEN caFL.status_session IN (N'dormant', N'sleeping') AND ttCD.open_tran = 0 THEN N'' + WHEN caFL.status_session IN (N'dormant', N'sleeping') AND ttCD.open_tran > 0 THEN N'•' + WHEN caFL.status_session IN (N'PENDING', N'PRECONNECT', N'RUNNABLE', N'SPINLOOP', N'SUSPENDED') THEN N'[]' + WHEN caFL.status_session IN (N'ROLLBACK', N'RUNNING') THEN N'X' + ELSE N'N/A' + END) AS Running + ,(CASE + WHEN ttD.session_id IS NULL AND caFL.blocking IS NULL AND ttCD.blocking_session_id IS NULL AND ttP.session_id IS NULL THEN N'' + ELSE ISNULL (caCP.deadlocking_spid + caCP.separator_01, N'') + ISNULL (caCP.blocking_spids + caCP.separator_02, N'') + ISNULL (caCP.blocked_by_spid + caCP.separator_03, N'') + ISNULL (caCP.parallelism_spid, N'') + END) AS Blocking + ,caFL.status_session + N' -> ' + ISNULL (caFL.status_request, N'N/A') AS [Status] + ,ISNULL (ISNULL (ttCD.[object_name], N'Database ID: ' + CONVERT (NVARCHAR (11), ttCD.[dbid]) + N', Object ID: ' + CONVERT (NVARCHAR (11), ttCD.objectid)), N'') AS [Object_Name] + ,ISNULL (ttCD.command, N'awaiting command') AS Command + ,ISNULL (CONVERT (NVARCHAR (11), ttCD.threads), N'') AS Threads + ,ISNULL (ttCD.[text], N'') AS SQL_Statement_Batch + ,caCP.sql_statement_current AS SQL_Statement_Current + ,(CASE ttCD.transaction_isolation_level + WHEN 0 THEN N'UNSPECIFIED' + WHEN 1 THEN N'READ UNCOMMITTED' + WHEN 2 THEN N'READ COMMITTED' + WHEN 3 THEN N'REPEATABLE READ' + WHEN 4 THEN N'SERIALIZABLE' + WHEN 5 THEN N'SNAPSHOT' + ELSE N'N/A' + END) AS Isolation_Level + ,ISNULL (CONVERT (NVARCHAR (15), (NULLIF (caFL.wait_time, 0) / 1000) / 86400) + N' Day(s) ' + CONVERT (NVARCHAR (8), DATEADD (SECOND, NULLIF (caFL.wait_time, 0) / 1000, 0), 108), N'') AS Wait_Time + ,ISNULL (ttCD.wait_type, N'') AS Wait_Type + ,ISNULL (ttCD.last_wait_type, N'') AS Last_Wait_Type + ,ISNULL (CONVERT (NVARCHAR (15), (NULLIF (caFL.total_elapsed_time, 0) / 1000) / 86400) + N' Day(s) ' + CONVERT (NVARCHAR (8), DATEADD (SECOND, NULLIF (caFL.total_elapsed_time, 0) / 1000, 0), 108), N'') AS Elapsed_Time + ,ISNULL (CONVERT (NVARCHAR (15), (NULLIF (ttCD.cpu_time_total, 0) / 1000) / 86400) + N' Day(s) ' + CONVERT (NVARCHAR (8), DATEADD (SECOND, NULLIF (ttCD.cpu_time_total, 0) / 1000, 0), 108), N'') AS CPU_Total + ,ISNULL (CONVERT (NVARCHAR (15), (NULLIF (ttCD.cpu_time_current, 0) / 1000) / 86400) + N' Day(s) ' + CONVERT (NVARCHAR (8), DATEADD (SECOND, NULLIF (ttCD.cpu_time_current, 0) / 1000, 0), 108), N'') AS CPU_Current + ,ISNULL (REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (ttCD.logical_reads_total, 0)), 1)), 4, 23)), N'') AS Logical_Reads_Total + ,ISNULL (REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (ttCD.logical_reads_current, 0)), 1)), 4, 23)), N'') AS Logical_Reads_Current + ,ISNULL (REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (ttCD.reads_total, 0)), 1)), 4, 23)), N'') AS Physical_Reads_Total + ,ISNULL (REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (ttCD.reads_current, 0)), 1)), 4, 23)), N'') AS Physical_Reads_Current + ,ISNULL (REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (ttCD.writes_total, 0)), 1)), 4, 23)), N'') AS Writes_Total + ,ISNULL (REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (ttCD.writes_current, 0)), 1)), 4, 23)), N'') AS Writes_Current + ,ISNULL (REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (ttCD.row_count, 0)), 1)), 4, 23)), N'') AS Last_Row_Count + ,ISNULL (CONVERT (NVARCHAR (23), CONVERT (MONEY, (NULLIF (ttCD.granted_query_memory, 0) * 8) / 1024.0), 1), N'') AS Allocated_Memory_MB + ,ISNULL (CONVERT (NVARCHAR (11), NULLIF (ttCD.memory_usage, 0)), N'') AS Pages_Used + ,ISNULL (CONVERT (NVARCHAR (6), NULLIF (ttCD.open_tran, 0)), N'') AS Transactions + ,ISNULL (CONVERT (NVARCHAR (20), NULLIF (ttCD.transaction_id, 0)), N'') AS Transaction_ID + ,ISNULL ((CASE + WHEN ttCD.transaction_begin_time > @Date_Now THEN N'0 Day(s) 00:00:00' + ELSE CONVERT (NVARCHAR (15), DATEDIFF (SECOND, ttCD.transaction_begin_time, @Date_Now) / 86400) + N' Day(s) ' + CONVERT (NVARCHAR (8), DATEADD (SECOND, DATEDIFF (SECOND, ttCD.transaction_begin_time, @Date_Now), 0), 108) + END), N'') AS Transaction_Time + ,(CASE + WHEN ttCD.transaction_type IS NULL THEN N'' + WHEN ttCD.transaction_type = 1 THEN N'Read / Write' + WHEN ttCD.transaction_type = 2 THEN N'Read-Only' + WHEN ttCD.transaction_type = 3 THEN N'System' + WHEN ttCD.transaction_type = 4 THEN N'Distributed' + ELSE N'N/A' + END) AS Transaction_Type + ,(CASE + WHEN ttCD.transaction_state IS NULL THEN N'' + WHEN ttCD.transaction_state = 0 THEN N'Initializing' + WHEN ttCD.transaction_state = 1 THEN N'Initialized / Not Started' + WHEN ttCD.transaction_state = 2 THEN N'Active' + WHEN ttCD.transaction_state = 3 THEN N'Ended (Read-Only Transaction)' + WHEN ttCD.transaction_state = 4 THEN N'Commit Initiated (Distributed Transaction)' + WHEN ttCD.transaction_state = 5 THEN N'Prepared / Waiting Resolution' + WHEN ttCD.transaction_state = 6 THEN N'Committed' + WHEN ttCD.transaction_state = 7 THEN N'Rolling Back' + WHEN ttCD.transaction_state = 8 THEN N'Rolled Back' + ELSE N'N/A' + END) AS Transaction_State + ,ISNULL (CONVERT (NVARCHAR (11), NULLIF (ttCD.nest_level, 0)), N'') AS Nesting_Level + ,ISNULL (CONVERT (NVARCHAR (23), CONVERT (MONEY, (NULLIF (ttCD.tempdb_page_allocation_session, 0) * 8) / 1024.0), 1), N'') AS TempDB_Session_Total_MB + ,ISNULL (CONVERT (NVARCHAR (23), CONVERT (MONEY, ((NULLIF (ttCD.tempdb_page_allocation_session, 0) - ttCD.tempdb_page_deallocation_session) * 8) / 1024.0), 1), N'') AS TempDB_Session_Current_MB + ,ISNULL (CONVERT (NVARCHAR (23), CONVERT (MONEY, (NULLIF (ttCD.tempdb_page_allocation_task, 0) * 8) / 1024.0), 1), N'') AS TempDB_Task_Total_MB + ,ISNULL (CONVERT (NVARCHAR (23), CONVERT (MONEY, ((NULLIF (ttCD.tempdb_page_allocation_task, 0) - ttCD.tempdb_page_deallocation_task) * 8) / 1024.0), 1), N'') AS TempDB_Task_Current_MB + ,ISNULL (REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (sqLS.log_database_count, 0)), 1)), 4, 23)), N'') AS Log_Database_Count + ,ISNULL (REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (sqLS.log_record_count_all, 0)), 1)), 4, 23)), N'') AS Log_Records_All + ,ISNULL (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (sqLS.log_bytes_reserved_all, 0) / 1048576.0), 1), N'') AS Log_Reserved_MB_All + ,ISNULL (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (sqLS.log_bytes_used_all, 0) / 1048576.0), 1), N'') AS Log_Used_MB_All + ,ISNULL (( + SELECT + ISNULL ((CASE + WHEN ttLGD.database_id = 32767 THEN N'mssqlsystemresource (Hidden Resource Database)' + ELSE ttDB.database_name + END), N'N/A') + + ISNULL (@CR_LF_Tab + + LEFT (N'Transaction Time' + REPLICATE (N' ', 25), 25) + N': ' + + (CASE + WHEN ttLGD.database_transaction_begin_time > @Date_Now THEN N'0 Day(s) 00:00:00' + ELSE CONVERT (NVARCHAR (15), DATEDIFF (SECOND, ttLGD.database_transaction_begin_time, @Date_Now) / 86400) + N' Day(s) ' + CONVERT (NVARCHAR (8), DATEADD (SECOND, DATEDIFF (SECOND, ttLGD.database_transaction_begin_time, @Date_Now), 0), 108) + END), N'') + + @CR_LF_Tab + + LEFT (N'Transaction Type' + REPLICATE (N' ', 25), 25) + N': ' + + (CASE ttLGD.database_transaction_type + WHEN 1 THEN N'Read / Write' + WHEN 2 THEN N'Read-Only' + WHEN 3 THEN N'System' + ELSE N'N/A' + END) + + @CR_LF_Tab + + LEFT (N'Transaction State' + REPLICATE (N' ', 25), 25) + N': ' + + (CASE ttLGD.database_transaction_state + WHEN 1 THEN N'Not Initialized' + WHEN 3 THEN N'No Log Records Generated' + WHEN 4 THEN N'Log Records Generated' + WHEN 5 THEN N'Prepared' + WHEN 10 THEN N'Committed' + WHEN 11 THEN N'Rolled Back' + WHEN 12 THEN N'Committing / Log Records Generating' + ELSE N'N/A' + END) + + ISNULL (@CR_LF_Tab + + LEFT (N'Log Records Generated' + REPLICATE (N' ', 25), 25) + N': ' + + REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (ttLGD.database_transaction_log_record_count, 0)), 1)), 4, 23)), N'') + + ISNULL (@CR_LF_Tab + + LEFT (N'Log MB Reserved' + REPLICATE (N' ', 25), 25) + N': ' + + CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (ttLGD.database_transaction_log_bytes_reserved, 0) / 1048576.0), 1), N'') + + ISNULL (@CR_LF_Tab + + LEFT (N'Log MB Used' + REPLICATE (N' ', 25), 25) + N': ' + + CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (ttLGD.database_transaction_log_bytes_used, 0) / 1048576.0), 1), N'') + + ISNULL (@CR_LF_Tab + + LEFT (N'Log MB Reserved (System)' + REPLICATE (N' ', 25), 25) + N': ' + + CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (ttLGD.database_transaction_log_bytes_reserved_system, 0) / 1048576.0), 1), N'') + + ISNULL (@CR_LF_Tab + + LEFT (N'Log MB Used (System)' + REPLICATE (N' ', 25), 25) + N': ' + + CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (ttLGD.database_transaction_log_bytes_used_system, 0) / 1048576.0), 1), N'') + + @CR_LF + + @CR_LF AS [text()] + FROM + dbo.#temp_log_details ttLGD + LEFT JOIN dbo.#temp_databases ttDB ON ttDB.database_id = ttLGD.database_id + WHERE + ttLGD.transaction_id = ttCD.transaction_id + ORDER BY + (CASE + WHEN ttLGD.database_id = 32767 THEN N'mssqlsystemresource (Hidden Resource Database)' + ELSE ttDB.database_name + END) + FOR + XML PATH (N'') + ,TYPE + ), N'') AS Log_Details + ,(CASE + WHEN ttCD.[lock_timeout] = -1 THEN N'Wait Forever' + WHEN ttCD.[lock_timeout] = 0 THEN N'Immediately' + ELSE CONVERT (NVARCHAR (11), CONVERT (DECIMAL (18, 2), ROUND (ttCD.[lock_timeout] / 1000.0, 2))) + END) AS Lock_Timeout_Seconds + ,ISNULL (( + SELECT + ISNULL (N'Database ' + ISNULL (N'Name: ' + ttDB.database_name, N'ID: ' + CONVERT (NVARCHAR (11), ttLKD.rsc_dbid)), N'') + + ISNULL (N' ••• Object ' + ISNULL (N'Name: ' + ttLKD.[object_name], N'ID: ' + CONVERT (NVARCHAR (11), NULLIF (ttLKD.rsc_objid, 0))), N'') + + ISNULL (N' ••• Index ' + ISNULL (N'Name: ' + ttLKD.index_name, N'ID: ' + CONVERT (NVARCHAR (11), NULLIF (ttLKD.rsc_indid, 0))), N'') + + @CR_LF_Tab + + N'Resource Type: ' + + (CASE ttLKD.rsc_type + WHEN 1 THEN N'NULL Resource' + WHEN 2 THEN N'Database' + WHEN 3 THEN N'File' + WHEN 4 THEN N'Index' + WHEN 5 THEN N'Object' + WHEN 6 THEN N'Page' + WHEN 7 THEN N'Key' + WHEN 8 THEN N'Extent' + WHEN 9 THEN N'Row ID (RID)' + WHEN 10 THEN N'Application' + WHEN 11 THEN N'Metadata' + WHEN 12 THEN N'Heap Or B-Tree (HoBt)' + WHEN 13 THEN N'Allocation Unit' + ELSE N'N/A' + END) + + @CR_LF_Tab + + N'Request Mode: ' + + (CASE ttLKD.req_mode + WHEN 0 THEN N'NULL Resource' + WHEN 1 THEN N'Sch-S (Schema Stability)' + WHEN 2 THEN N'Sch-M (Schema Modification)' + WHEN 3 THEN N'S (Shared)' + WHEN 4 THEN N'U (Update)' + WHEN 5 THEN N'X (Exclusive)' + WHEN 6 THEN N'IS (Intent Shared)' + WHEN 7 THEN N'IU (Intent Update)' + WHEN 8 THEN N'IX (Intent Exclusive)' + WHEN 9 THEN N'SIU (Shared Intent Update)' + WHEN 10 THEN N'SIX (Shared Intent Exclusive)' + WHEN 11 THEN N'UIX (Update Intent Exclusive)' + WHEN 12 THEN N'BU (Bulk Update)' + WHEN 13 THEN N'RangeS-S (Serializable Range Scan)' + WHEN 14 THEN N'RangeS-U (Serializable Update Scan)' + WHEN 15 THEN N'RangeI-N (Insert Key-Range / NULL Resource Lock)' + WHEN 16 THEN N'RangeI-S (Overlap Of RangeI-N / S Locks)' + WHEN 17 THEN N'RangeI-U (Overlap Of RangeI-N / U Locks)' + WHEN 18 THEN N'RangeI-X (Overlap Of RangeI-N / X Locks)' + WHEN 19 THEN N'RangeX-S (Overlap Of RangeI-N / RangeS-S Locks)' + WHEN 20 THEN N'RangeX-U (Overlap Of RangeI-N / RangeS-U Locks)' + WHEN 21 THEN N'RangeX-X (Exclusive Key-Range / Exclusive Resource Lock)' + ELSE N'N/A' + END) + + @CR_LF_Tab + + N'Request Status: ' + + (CASE ttLKD.req_status + WHEN 1 THEN N'Granted' + WHEN 2 THEN N'Convert' + WHEN 3 THEN N'Wait' + WHEN 4 THEN N'RELN' + WHEN 5 THEN N'BLCKN' + ELSE N'N/A' + END) + + @CR_LF_Tab + + N'Request Owner Type: ' + + (CASE ttLKD.req_ownertype + WHEN 1 THEN N'Transaction' + WHEN 2 THEN N'Cursor' + WHEN 3 THEN N'User Session' + WHEN 4 THEN N'Shared Transaction Workspace' + WHEN 5 THEN N'Exclusive Transaction Workspace' + WHEN 6 THEN N'WFR' + ELSE N'N/A' + END) + + @CR_LF_Tab + + N'ECID: ' + CONVERT (NVARCHAR (11), ttLKD.req_ecid) + + @CR_LF_Tab + + N'Request Reference Count: ' + CONVERT (NVARCHAR (6), ttLKD.req_refcnt) + + @CR_LF + + @CR_LF AS [text()] + FROM + dbo.#temp_lock_details ttLKD + LEFT JOIN dbo.#temp_databases ttDB ON ttDB.database_id = ttLKD.rsc_dbid + WHERE + ttLKD.req_spid = ttCD.session_id + ORDER BY + ttDB.database_name + ,ttLKD.[object_name] + ,ttLKD.index_name + ,ttLKD.rsc_type + ,ttLKD.req_mode + ,ttLKD.req_status + ,ttLKD.req_ownertype + ,ttLKD.req_ecid + ,ttLKD.req_refcnt + FOR + XML PATH (N'') + ,TYPE + ), N'') AS Lock_Details + ,(CASE + WHEN ttCD.[deadlock_priority] <= -5 THEN N'Low' + WHEN ttCD.[deadlock_priority] >= 5 THEN N'High' + ELSE N'Normal' + END) + N': ' + CONVERT (NVARCHAR (3), ttCD.[deadlock_priority]) AS [Deadlock_Priority] + ,CONVERT (XML, ISNULL ((CASE + WHEN (@Exclude_SQL = 1 OR @Exclude_SQL_XML = 1) THEN N'' + ELSE REPLACE (REPLACE (REPLACE (REPLACE (REPLACE (REPLACE (ttCD.[text] COLLATE Latin1_General_BIN, NCHAR (0) COLLATE Latin1_General_BIN, N''), N'&', @Ampersand + N'amp;'), N'<', @Ampersand + N'lt;'), N'>', @Ampersand + N'gt;'), N'"', @Ampersand + N'quot;'), N'''', @Ampersand + N'#39;') + END), N'')) AS SQL_Statement_Batch_XML + ,CONVERT (XML, (CASE + WHEN (@Exclude_SQL = 1 OR @Exclude_SQL_XML = 1) THEN N'' + ELSE REPLACE (REPLACE (REPLACE (REPLACE (REPLACE (REPLACE (ISNULL (NULLIF (NULLIF (caCP.sql_statement_current, N'<< Derived Statement >>'), N'<< Single Statement >>'), ttCD.[text]) COLLATE Latin1_General_BIN, NCHAR (0) COLLATE Latin1_General_BIN, N''), N'&', @Ampersand + N'amp;'), N'<', @Ampersand + N'lt;'), N'>', @Ampersand + N'gt;'), N'"', @Ampersand + N'quot;'), N'''', @Ampersand + N'#39;') + END)) AS SQL_Statement_Current_XML + ,ISNULL (CONVERT (NVARCHAR (130), ttCD.[sql_handle], 1), N'') AS [SQL_Handle] + ,ISNULL (ttCD.query_plan, N'') AS Query_Plan + ,ISNULL (CONVERT (NVARCHAR (130), ttCD.plan_handle, 1), N'') AS Plan_Handle + ,ISNULL ((CASE + WHEN caFL.login_time > @Date_Now THEN N'0 Day(s) 00:00:00' + ELSE CONVERT (NVARCHAR (15), DATEDIFF (SECOND, caFL.login_time, @Date_Now) / 86400) + N' Day(s) ' + CONVERT (NVARCHAR (8), DATEADD (SECOND, DATEDIFF (SECOND, caFL.login_time, @Date_Now), 0), 108) + END), N'') AS Since_SPID_Login + ,ISNULL ((CASE + WHEN caFL.last_request_start_time > @Date_Now THEN N'0 Day(s) 00:00:00' + ELSE CONVERT (NVARCHAR (15), DATEDIFF (SECOND, caFL.last_request_start_time, @Date_Now) / 86400) + N' Day(s) ' + CONVERT (NVARCHAR (8), DATEADD (SECOND, DATEDIFF (SECOND, caFL.last_request_start_time, @Date_Now), 0), 108) + END), N'') AS Since_Last_Batch_Start + ,ISNULL ((CASE + WHEN caFL.last_request_end_time > @Date_Now THEN N'0 Day(s) 00:00:00' + ELSE CONVERT (NVARCHAR (15), DATEDIFF (SECOND, caFL.last_request_end_time, @Date_Now) / 86400) + N' Day(s) ' + CONVERT (NVARCHAR (8), DATEADD (SECOND, DATEDIFF (SECOND, caFL.last_request_end_time, @Date_Now), 0), 108) + END), N'') AS Since_Last_Batch_End + ,ISNULL (CONVERT (NVARCHAR (7), CONVERT (DECIMAL (5, 2), NULLIF (ttCD.percent_complete, 0))), N'') AS Command_Pct + ,ISNULL ((CASE + WHEN ttCD.percent_complete = 0 THEN N'' + ELSE CONVERT (NVARCHAR (19), DATEADD (MILLISECOND, ttCD.estimated_completion_time, @Date_Now), 120) + END), N'') AS Command_Completion + ,ISNULL (CONVERT (NVARCHAR (15), (NULLIF (ttCD.estimated_completion_time, 0) / 1000) / 86400) + N' Day(s) ' + CONVERT (NVARCHAR (8), DATEADD (SECOND, NULLIF (ttCD.estimated_completion_time, 0) / 1000, 0), 108), N'') AS Command_Time_Left + ,ISNULL (ttCD.[host_name], N'') AS [Host_Name] + ,caFL.login_id AS Login_ID + ,(CASE + WHEN ttCD.login_name = N'sa' THEN N'<< System Administrator >>' + ELSE ttCD.login_name + END) AS Login_Name + ,ISNULL (REPLACE (REPLACE (ttCD.[program_name], N'Microsoft® Windows® Operating System', N'Windows OS'), N'Microsoft', N'MS'), N'') AS Application_Description + ,(CASE ttCD.is_user_process + WHEN 1 THEN N'' + ELSE N'Yes' + END) AS System_Process + ,caFL.spid AS SPID +FROM + dbo.#temp_core_data ttCD + LEFT JOIN dbo.#temp_deadlocking ttD ON ttD.session_id = ttCD.session_id + LEFT JOIN dbo.#temp_parallelism ttP ON ttP.session_id = ttCD.session_id + LEFT JOIN + + ( + SELECT + ttLGD.transaction_id + ,COUNT (*) AS log_database_count + ,SUM (ttLGD.database_transaction_log_record_count) AS log_record_count_all + ,SUM (ttLGD.database_transaction_log_bytes_reserved + ttLGD.database_transaction_log_bytes_reserved_system) AS log_bytes_reserved_all + ,SUM (ttLGD.database_transaction_log_bytes_used + ttLGD.database_transaction_log_bytes_used_system) AS log_bytes_used_all + FROM + dbo.#temp_log_details ttLGD + GROUP BY + ttLGD.transaction_id + ) sqLS ON sqLS.transaction_id = ttCD.transaction_id + + CROSS APPLY + + ( + SELECT + CONVERT (NVARCHAR (6), ttCD.session_id) + ISNULL (N' ' + (CASE + WHEN ttCD.session_id = @@SPID THEN N'••' + WHEN ttCD.is_user_process = 0 THEN N'•' + END), N'') AS spid + ,STUFF (( + SELECT + N', ' + CONVERT (NVARCHAR (MAX), ttXCD.session_id) AS [text()] + FROM + dbo.#temp_core_data ttXCD + WHERE + ttXCD.blocking_session_id = ttCD.session_id + ORDER BY + ttXCD.session_id + FOR + XML PATH (N'') + ), 1, 2, N'') AS blocking + ,(CASE + WHEN ttCD.status_session NOT IN (N'dormant', N'sleeping') THEN UPPER (ttCD.status_session) + ELSE ttCD.status_session + END) AS status_session + ,(CASE + WHEN ttCD.status_request <> N'sleeping' THEN UPPER (ttCD.status_request) + ELSE ttCD.status_request + END) AS status_request + ,CONVERT (BIGINT, (CASE + WHEN ttCD.wait_time < 0 THEN 2147483647 + (2147483649 + ttCD.wait_time) + ELSE ttCD.wait_time + END)) AS wait_time + ,CONVERT (BIGINT, (CASE + WHEN ttCD.total_elapsed_time < 0 THEN 2147483647 + (2147483649 + ttCD.total_elapsed_time) + ELSE ttCD.total_elapsed_time + END)) AS total_elapsed_time + ,(CASE + WHEN ttCD.login_time_sessions = N'1900-01-01 00:00:00.000' THEN ttCD.login_time_processes + ELSE ttCD.login_time_sessions + END) AS login_time + ,(CASE + WHEN ttCD.last_request_start_time = N'1900-01-01 00:00:00.000' THEN NULL + ELSE ttCD.last_request_start_time + END) AS last_request_start_time + ,(CASE + WHEN ttCD.last_request_end_time = N'1900-01-01 00:00:00.000' THEN ttCD.last_batch + ELSE ttCD.last_request_end_time + END) AS last_request_end_time + ,ISNULL (NULLIF (ttCD.nt_user_name, N''), ttCD.login_name) AS login_id + ) caFL + + CROSS APPLY + + ( + SELECT + N'[ Deadlocking ] : ' + CONVERT (NVARCHAR (6), ttD.blocking_session_id) AS deadlocking_spid + ,(CASE + WHEN (caFL.blocking IS NOT NULL OR ttCD.blocking_session_id IS NOT NULL OR ttP.session_id IS NOT NULL) THEN N' •• ' + ELSE N'' + END) AS separator_01 + ,N'< Blocking > : ' + caFL.blocking AS blocking_spids + ,(CASE + WHEN (ttCD.blocking_session_id IS NOT NULL OR ttP.session_id IS NOT NULL) THEN N' •• ' + ELSE N'' + END) AS separator_02 + ,N'> Blocked By < : ' + CONVERT (NVARCHAR (6), ttCD.blocking_session_id) AS blocked_by_spid + ,(CASE + WHEN ttP.session_id IS NOT NULL THEN N' •• ' + ELSE N'' + END) AS separator_03 + ,N'( Parallelism ) : ' + CONVERT (NVARCHAR (6), ttP.session_id) AS parallelism_spid + ,ISNULL ((CASE + WHEN ttCD.[text] IS NULL THEN N'' + WHEN caFL.status_session = N'sleeping' AND caFL.status_request IS NULL THEN N'' + WHEN ttCD.stmt_start < 1 AND ttCD.stmt_end = -1 THEN N'<< Single Statement >>' + WHEN (DATALENGTH (ttCD.[text]) - ttCD.stmt_start) / 2 < 0 AND ttCD.stmt_end = -1 THEN N'<< Derived Statement >>' + WHEN ttCD.stmt_end = -1 THEN SUBSTRING (ttCD.[text], (ttCD.stmt_start / 2) + 1, ((DATALENGTH (ttCD.[text]) - ttCD.stmt_start) / 2) + 1) + ELSE SUBSTRING (ttCD.[text], (ttCD.stmt_start / 2) + 1, ((ttCD.stmt_end - ttCD.stmt_start) / 2) + 1) + END), N'') AS sql_statement_current + ) caCP + +ORDER BY + (CASE + WHEN ttD.blocking_session_id IS NOT NULL AND caFL.blocking IS NULL THEN 1 + WHEN ttD.blocking_session_id IS NOT NULL AND caFL.blocking IS NOT NULL THEN 2 + WHEN caFL.blocking IS NOT NULL AND ttCD.blocking_session_id IS NULL THEN 3 + WHEN caFL.blocking IS NOT NULL AND ttCD.blocking_session_id IS NOT NULL THEN 4 + WHEN ttCD.blocking_session_id IS NOT NULL THEN 5 + WHEN ttP.session_id IS NOT NULL THEN 6 + ELSE 7 + END) + ,ttCD.session_id + + +----------------------------------------------------------------------------------------------------------------------------- +-- Cleanup: Drop Any Remaining Temp Tables +----------------------------------------------------------------------------------------------------------------------------- + +IF OBJECT_ID (N'tempdb.dbo.#temp_core_data', N'U') IS NOT NULL +BEGIN + + DROP TABLE dbo.#temp_core_data + +END + + +IF OBJECT_ID (N'tempdb.dbo.#temp_databases', N'U') IS NOT NULL +BEGIN + + DROP TABLE dbo.#temp_databases + +END + + +IF OBJECT_ID (N'tempdb.dbo.#temp_deadlocking', N'U') IS NOT NULL +BEGIN + + DROP TABLE dbo.#temp_deadlocking + +END + + +IF OBJECT_ID (N'tempdb.dbo.#temp_lock_details', N'U') IS NOT NULL +BEGIN + + DROP TABLE dbo.#temp_lock_details + +END + + +IF OBJECT_ID (N'tempdb.dbo.#temp_log_details', N'U') IS NOT NULL +BEGIN + + DROP TABLE dbo.#temp_log_details + +END + + +IF OBJECT_ID (N'tempdb.dbo.#temp_parallelism', N'U') IS NOT NULL +BEGIN + + DROP TABLE dbo.#temp_parallelism + +END +GO \ No newline at end of file diff --git a/Stored_Procedure/usp_PrintString.sql b/Stored_Procedure/usp_PrintString.sql deleted file mode 100644 index 3824c852..00000000 --- a/Stored_Procedure/usp_PrintString.sql +++ /dev/null @@ -1,85 +0,0 @@ -IF OBJECT_ID('dbo.usp_PrintString', 'P') IS NULL - EXECUTE ('CREATE PROCEDURE dbo.usp_PrintString AS SELECT 1'); -GO - -ALTER PROCEDURE dbo.usp_PrintString (@str VARCHAR(max)) -AS -BEGIN - DECLARE @line VARCHAR(max) - ,@StartLocation INT - ,@Length INT - ,@TotalLength INT - ,@Current INT - - SELECT @StartLocation = 1 - ,@TotalLength = datalength(@str) - ,@Current = 1 - ,@Length = 0 - - DECLARE @PrintLine NVARCHAR(max) = - 'declare @pos int = 1 - while @pos <= len(@line) - begin - print substring(@line, @pos, 8000) - select @pos = @pos + 8000 - end' - - WHILE @Current <= @TotalLength - BEGIN - IF ( - substring(@str, @Current, 2) IN ( - CHAR(0x0D) + CHAR(0x0A) - ,CHAR(0x0A) + CHAR(0x0D) - ) - ) - BEGIN - IF @Length <= 0 - PRINT '' - ELSE - BEGIN -- line - SELECT @line = substring(@str, @StartLocation, @Length) - - EXEC sp_executesql @PrintLine - ,N'@Line varchar(max)' - ,@line - END - - SELECT @StartLocation = @Current + 2 - ,@Current = @Current + 2 - ,@Length = 0 - - CONTINUE; - END - ELSE IF ( - substring(@str, @Current, 1) IN ( - CHAR(0x0D) - ,CHAR(0x0A) - ) - ) - BEGIN - IF @Length <= 0 - PRINT '' - ELSE - BEGIN - SELECT @line = substring(@str, @StartLocation, @Length) - - EXEC sp_executesql @PrintLine - ,N'@Line varchar(max)' - ,@line - END - - SELECT @StartLocation = @Current + 1 - ,@Current = @Current + 1 - ,@Length = 0 - - CONTINUE; - END - - SELECT @Current = @Current + 1 - ,@Length = @Length + 1 - END - - IF (@StartLocation <= datalength(@str)) - PRINT substring(@str, @StartLocation, datalength(@str)) -END; -GO diff --git a/Stored_Procedure/usp_SearchOnAllDB.sql b/Stored_Procedure/usp_SearchOnAllDB.sql deleted file mode 100644 index 94095378..00000000 --- a/Stored_Procedure/usp_SearchOnAllDB.sql +++ /dev/null @@ -1,147 +0,0 @@ -/*************************************************************************/ -/* Procedure of search of a phrase on all database */ -/* Originally developed by Oufimtsev Gleb, MCSE */ -/* */ -/* Updated by David Musgrave, Microsoft */ -/* from feedback from Eduardo Barbosa & Marc K */ -/* */ -/* Last Modified: 26-Jul-2013 */ -/* */ -/* Search for spSearchOnAllDB at http://aka.ms/Dev4DynGP for more info */ -/* */ -/*************************************************************************/ - -if exists (select * from sysobjects where id = object_id('dbo.spSearchOnAllDB') ) - drop procedure dbo.spSearchOnAllDB -GO - -CREATE PROCEDURE spSearchOnAllDB @phrase varchar(8000), @OutFullRecords bit = 0 AS - -/* - To apply so: - exec spSearchOnAllDB 'Sugar%' - exec spSearchOnAllDB '%soft%' - exec spSearchOnAllDB '_5234_57%', 1 - exec spSearchOnAllDB M_cro_oft -*/ - -declare @sql varchar(8000) -declare @tbl varchar(128) -declare @col varchar(128) -declare @id_present bit - -declare @is_char_phrase bit -declare @min_len int -declare @loop_idx int -declare @loop_chr char(1) - -set nocount on - -if IsNull(@phrase, '') = '' begin - raiserror('Phrase is absent', 16, -1) - return -end - --- Handle Quotes passed in the search string -set @phrase = replace(@phrase, '''', '''''') - -select @loop_idx = 1, @is_char_phrase = 0, @min_len = 0 - -while @loop_idx <= LEN(@phrase) begin - set @loop_chr = SUBSTRING(@phrase, @loop_idx,1) - if @loop_chr not in ('%', '_') - set @min_len = @min_len + 1 - if @is_char_phrase = 0 and @loop_chr not in ('%', '_', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '.') - set @is_char_phrase = 1 - set @loop_idx = @loop_idx + 1 -end - -create table #tbl_res - (TableName varchar(128) not NULL, - ColumnName varchar(128) not NULL, - Id int NULL, - ColumnValue varchar(7500) not NULL) - -create table #tbl_res2 - (TableName varchar(128) not NULL, - ColumnName varchar(128) not NULL, - Id int NULL, - ColumnValue varchar(7500) not NULL) - -declare CRR cursor local fast_forward for - select t.name, c.name, 1 - from sysobjects t, syscolumns c - where t.type = 'U' - and c.id = t.id - and c.status&0x80 = 0 -- Not IDENTITY - and exists (select * from syscolumns c2 where t.id = c2.id and c2.status&0x80 = 0x80 and c2.xtype in (48, 52, 56)) - and ( (@is_char_phrase = 1 and c.xtype in (175, 239, 99, 231, 35, 167) and c.length >= @min_len) -- char only - or (@is_char_phrase = 0 and c.xtype not in (34, 165, 173, 189, 61, 58, 36))) -- char and numeric - union - select t.name, c.name, 0 - from sysobjects t, syscolumns c - where t.type = 'U' - and c.id = t.id - and not exists (select * from syscolumns c2 where t.id=c2.id and c2.status&0x80 = 0x80 and c2.xtype in (48, 52, 56)) - and ( (@is_char_phrase = 1 and c.xtype in (175, 239, 99, 231, 35, 167) and c.length >= @min_len) -- char only - or (@is_char_phrase = 0 and c.xtype not in (34, 165, 173, 189, 61, 58, 36))) -- char and numeric - order by 1, 2 - -open CRR -fetch CRR into @tbl, @col, @id_present -while @@FETCH_STATUS = 0 begin - if @OutFullRecords = 0 begin - set @sql = 'insert into #tbl_res (TableName, ColumnName, Id, ColumnValue) ' - + 'select ''[' + @tbl + ']'', ''[' + @col + ']'', ' - if @id_present = 1 - set @sql = @sql + 'IDENTITYCOL, ' - else - set @sql = @sql + 'NULL, ' - set @sql = @sql + 'convert(varchar(7500), [' + @col + ']) ' - + 'from [' + @tbl + '] (nolock) ' - + 'where convert(varchar(8000), [' + @col + ']) like ''' + @phrase + ''' ' - end - if @OutFullRecords = 1 begin - set @sql = 'if exists (select * from [' + @tbl + '] (nolock) ' - + 'where convert(varchar(8000), [' + @col + ']) like ''' + @phrase + ''') ' - + 'select ''[' + @tbl + ']'' TableName, ''[' + @col+ ']'' ColumnName, * ' - + 'from [' + @tbl + '] (nolock) where convert(varchar(8000), [' + @col + ']) like ''' + @phrase + ''' ' - end - exec(@sql) - fetch CRR into @tbl, @col, @id_present -end -close CRR -deallocate CRR - -if @OutFullRecords = 0 begin - -- For the clients supporting new types: - --exec('select * from #tbl_res order by 1,2,3') - - -- For the clients who are not supporting new types: - INSERT #tbl_res2 - select TableName, ColumnName, Id, convert(varchar(255),ColumnValue) ColumnValue from #tbl_res - - /** exec('select TableName, ColumnName, Id, convert(varchar(255),ColumnValue) ColumnValue from #tbl_res order by 1,2,3')**/ -end - -drop table #tbl_res - -/***Select Statement to show tables***/ - -select TableName, ColumnName, ColumnValue from #tbl_res2 group by TableName, ColumnName, ColumnValue - order by TableName - -truncate table #tbl_res2 -drop table #tbl_res2 -RETURN - -GO - ---GRANT EXECUTE ON dbo.spSearchOnAllDB TO DYNGRP - -/* Copyright Microsoft Corporation. All Rights Reserved. */ -/* This code released under the terms of the */ -/* Microsoft Public License (MS-PL, http://opensource.org/licenses/ms-pl.html.) */ - ---exec spSearchOnAllDB '100XL%', 1 ---exec spSearchOnAllDB '%''%', 0 diff --git a/Stored_Procedure/usp_String_Search.sql b/Stored_Procedure/usp_String_Search.sql deleted file mode 100644 index 439b11a1..00000000 --- a/Stored_Procedure/usp_String_Search.sql +++ /dev/null @@ -1,577 +0,0 @@ -SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED -SET NOCOUNT ON - - ------------------------------------------------------------------------------------------------------------------------------ --- Error Trapping: Check If Procedure Already Exists And Create Shell If Applicable ------------------------------------------------------------------------------------------------------------------------------ - -IF OBJECT_ID (N'dbo.usp_String_Search', N'P') IS NULL -BEGIN - - EXECUTE ('CREATE PROCEDURE dbo.usp_String_Search AS SELECT 1 AS shell') - -END -GO - - ------------------------------------------------------------------------------------------------------------------------------ --- Stored Procedure Details: Listing Of Standard Details Related To The Stored Procedure ------------------------------------------------------------------------------------------------------------------------------ - --- Purpose: Search For A String Value Within Columns Of Data Types CHAR, NCHAR, NTEXT, NVARCHAR, TEXT, VARCHAR, XML --- Create Date (MM/DD/YYYY): 03/20/2012 --- Developer: Sean Smith (s.smith.sql AT gmail DOT com) --- Additional Notes: N/A - - ------------------------------------------------------------------------------------------------------------------------------ --- Modification History: Listing Of All Modifications Since Original Implementation ------------------------------------------------------------------------------------------------------------------------------ - --- Description: Added "is_ms_shipped" Field --- : Added Option To Include System Objects In Search --- Date (MM/DD/YYYY): 12/06/2015 --- Developer: Sean Smith (s.smith.sql AT gmail DOT com) --- Additional Notes: N/A - - ------------------------------------------------------------------------------------------------------------------------------ --- Main Query: Create Procedure ------------------------------------------------------------------------------------------------------------------------------ - -ALTER PROCEDURE dbo.usp_String_Search - - @Search_String AS NVARCHAR (500) - ,@Database_Name AS NVARCHAR (300) - ,@Object_Types AS NVARCHAR (10) = NULL - ,@Data_Types AS NVARCHAR (100) = NULL - ,@Table_Max_Rows AS BIGINT = NULL - ,@Column_Max_Length AS SMALLINT = NULL - ,@Creation_Source AS NVARCHAR (1) = N'U' - -WITH RECOMPILE - -AS - -SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED -SET NOCOUNT ON -SET ANSI_WARNINGS OFF -SET ARITHABORT OFF -SET ARITHIGNORE ON -SET TEXTSIZE 2147483647 - - -DECLARE - @Creation_Filter AS NVARCHAR (30) - ,@Loop_Column_Number AS BIGINT - ,@Loop_Column_Number_First AS BIGINT - ,@Loop_Object_Number AS BIGINT - ,@Object_Name AS SYSNAME - ,@Object_Prefix AS NVARCHAR (4) - ,@Schema_Name AS SYSNAME - ,@SQL_String_Full AS NVARCHAR (MAX) - ,@SQL_String_IN_Column_Name AS NVARCHAR (MAX) - ,@SQL_String_SELECT AS NVARCHAR (MAX) - ,@SQL_String_WHERE AS NVARCHAR (MAX) - - -SET @Creation_Filter = (CASE @Creation_Source - WHEN N'S' THEN N'AND O.is_ms_shipped = 1' - WHEN N'U' THEN N'AND O.is_ms_shipped = 0' - ELSE N'' - END) - - -SET @Object_Prefix = (CASE - WHEN @Creation_Source IN (N'B', N'S') THEN N'all_' - ELSE N'' - END) - - -SET @Object_Types = N'''' + REPLACE (REPLACE (NULLIF (@Object_Types, N''), N' ', N''), N',', N''',''') + N'''' - - -SET @Data_Types = N'''' + REPLACE (REPLACE (NULLIF (@Data_Types, N''), N' ', N''), N',', N''',''') + N'''' - - ------------------------------------------------------------------------------------------------------------------------------ --- Error Trapping I: Validate "@Creation_Source", "@Database_Name", And "@Search_String" Input Parameter Values ------------------------------------------------------------------------------------------------------------------------------ - -IF @Creation_Source NOT IN (N'B', N'S', N'U') -BEGIN - - RAISERROR - - ( - 'ERROR: ''%s'' is not a valid creation source. - -Valid Creation Sources: - -B : Both (User and System created objects) -S : System created objects only -U : User created objects only' - ,16 - ,1 - ,@Creation_Source - ) - - - RETURN - -END - - -IF EXISTS (SELECT * FROM master.sys.databases DB WHERE DB.name = @Database_Name) -BEGIN - - SET @Database_Name = QUOTENAME (@Database_Name) - -END -ELSE IF EXISTS (SELECT * FROM master.sys.databases DB WHERE QUOTENAME (DB.name) = @Database_Name + N']') -BEGIN - - SET @Database_Name = @Database_Name + N']' - -END -ELSE IF NOT EXISTS (SELECT * FROM master.sys.databases DB WHERE QUOTENAME (DB.name) = @Database_Name) -BEGIN - - RAISERROR - - ( - N'ERROR: Database (''%s'') does not exist. Make sure that the name is entered correctly.' - ,16 - ,1 - ,@Database_Name - ) - - - RETURN - -END - - -IF NULLIF (@Search_String, N'') IS NOT NULL -BEGIN - - SET @Search_String = REPLACE (REPLACE (REPLACE (REPLACE (@Search_String, N'[', N'[[]'), N'%', N'[%]'), N'_', N'[_]'), N'''', N'''''') - -END -ELSE BEGIN - - RAISERROR - - ( - N'ERROR: @Search_String input parameter cannot be blank or NULL.' - ,16 - ,1 - ) - - - RETURN - -END - - ------------------------------------------------------------------------------------------------------------------------------ --- Error Trapping II: Check If Temp Table(s) Already Exist(s) And Drop If Applicable ------------------------------------------------------------------------------------------------------------------------------ - -IF OBJECT_ID (N'tempdb.dbo.#temp_string_search_objects_columns', N'U') IS NOT NULL -BEGIN - - DROP TABLE dbo.#temp_string_search_objects_columns - -END - - -IF OBJECT_ID (N'tempdb.dbo.#temp_string_search_results', N'U') IS NOT NULL -BEGIN - - DROP TABLE dbo.#temp_string_search_results - -END - - ------------------------------------------------------------------------------------------------------------------------------ --- Table Creation: Create Temp Tables To Temporarily Store Searchable Objects / Columns And Output Results ------------------------------------------------------------------------------------------------------------------------------ - -CREATE TABLE dbo.#temp_string_search_objects_columns - - ( - object_type VARCHAR (2) NOT NULL - ,is_ms_shipped BIT NOT NULL - ,data_type SYSNAME NOT NULL - ,data_length SMALLINT NOT NULL - ,[schema_name] SYSNAME NOT NULL - ,[object_name] SYSNAME NOT NULL - ,column_name SYSNAME NOT NULL - ,schema_object_dense_rank BIGINT NOT NULL - ,column_row_number BIGINT UNIQUE NOT NULL - ,PRIMARY KEY CLUSTERED - ( - schema_object_dense_rank - ,column_row_number - ) - ) - - -CREATE TABLE dbo.#temp_string_search_results - - ( - [schema_name] SYSNAME NOT NULL - ,[object_name] SYSNAME NOT NULL - ,column_name SYSNAME NOT NULL - ,column_data NVARCHAR (MAX) NOT NULL - ,occurrences INT NOT NULL - ) - - ------------------------------------------------------------------------------------------------------------------------------ --- Table Update I: Insert Searchable Objects / Columns Into Temp Table ------------------------------------------------------------------------------------------------------------------------------ - -SET @SQL_String_Full = - - N' - SELECT - O.[type] AS object_type - ,O.is_ms_shipped - ,LOWER (TYPE_NAME (C.user_type_id) + ISNULL ((N'': [ '' + (CASE - WHEN C.system_type_id <> C.user_type_id THEN TYPE_NAME (C.system_type_id) - END) + N'' ]''), N'''')) AS data_type - ,(CASE - WHEN LOWER (TYPE_NAME (C.system_type_id)) IN (N''nchar'', N''ntext'', N''nvarchar'') THEN CONVERT (VARCHAR (6), C.max_length / 2) - WHEN LOWER (TYPE_NAME (C.system_type_id)) NOT IN (N''bigint'', N''bit'', N''date'', N''datetime'', N''datetime2'', N''datetimeoffset'', N''decimal'', N''float'', N''int'', N''money'', N''numeric'', N''real'', N''smalldatetime'', N''smallint'', N''smallmoney'', N''time'', N''tinyint'') THEN CONVERT (VARCHAR (6), C.max_length) - ELSE CONVERT (VARCHAR (6), C.max_length) + '' ('' + CONVERT (VARCHAR (11), COLUMNPROPERTY (C.[object_id], C.name, ''Precision'')) + '','' + ISNULL (CONVERT (VARCHAR (11), COLUMNPROPERTY (C.[object_id], C.name, ''Scale'')), 0) + '')'' - END) AS data_length - ,S.name AS [schema_name] - ,O.name AS [object_name] - ,C.name AS column_name - ,DENSE_RANK () OVER - ( - ORDER BY - S.name - ,O.name - ) AS schema_object_dense_rank - ,ROW_NUMBER () OVER - ( - ORDER BY - C.name - ) AS column_row_number - FROM - ' + @Database_Name + N'.sys.schemas S - INNER JOIN ' + @Database_Name + N'.sys.' + @Object_Prefix + N'objects O ON O.[schema_id] = S.[schema_id] - AND O.[type] IN (' + (CASE - WHEN @Object_Types IS NOT NULL THEN @Object_Types - ELSE N'''U'', ''V''' - END) + N') - ' - - + @Creation_Filter + - - N' - INNER JOIN ' + @Database_Name + N'.sys.' + @Object_Prefix + N'columns C ON C.[object_id] = O.[object_id] - ' - - -IF @Column_Max_Length > 0 -BEGIN - - SET @SQL_String_Full = @SQL_String_Full + - - N' - ' + NCHAR (9) + N'AND C.system_type_id IN (167, 175, 231, 239) - ' + NCHAR (9) + N'AND (CASE - WHEN TYPE_NAME (C.system_type_id) IN (N''nchar'', N''ntext'', N''nvarchar'') THEN C.max_length / 2 - ELSE C.max_length - END) BETWEEN 1 AND ' + CONVERT (NVARCHAR (6), @Column_Max_Length) + N' - ' - -END -ELSE BEGIN - - SET @SQL_String_Full = @SQL_String_Full + - - N' - ' + NCHAR (9) + N'AND C.system_type_id IN (35, 99, 167, 175, 231, 239, 241) - ' - -END - - -SET @SQL_String_Full = @SQL_String_Full + - - N' - INNER JOIN ' + @Database_Name + N'.sys.types T ON T.system_type_id = C.system_type_id - AND T.user_type_id = C.user_type_id - ' + (CASE - WHEN @Data_Types IS NOT NULL THEN REPLICATE (NCHAR (9), 3) + N'AND T.name IN (' + @Data_Types + N')' - ELSE N'' - END) - - -IF @Table_Max_Rows > 0 -BEGIN - - SET @SQL_String_Full = @SQL_String_Full + - - N' - INNER JOIN - - ( - SELECT - DDPS.[object_id] - FROM - ' + @Database_Name + N'.sys.dm_db_partition_stats DDPS - WHERE - DDPS.index_id < 2 - GROUP BY - DDPS.[object_id] - HAVING - SUM (DDPS.row_count) <= ' + CONVERT (NVARCHAR (20), @Table_Max_Rows) + N' - ) sqTMR ON sqTMR.[object_id] = O.[object_id] - ' - -END - - -INSERT INTO dbo.#temp_string_search_objects_columns - - ( - object_type - ,is_ms_shipped - ,data_type - ,data_length - ,[schema_name] - ,[object_name] - ,column_name - ,schema_object_dense_rank - ,column_row_number - ) - -EXECUTE (@SQL_String_Full) - - ------------------------------------------------------------------------------------------------------------------------------ --- Table Update II: Insert Matched Results Into Temp Table ------------------------------------------------------------------------------------------------------------------------------ - -SELECT TOP (1) - @Loop_Object_Number = X.schema_object_dense_rank - ,@Schema_Name = X.[schema_name] - ,@Object_Name = X.[object_name] -FROM - dbo.#temp_string_search_objects_columns X -ORDER BY - X.schema_object_dense_rank - - -WHILE @Loop_Object_Number IS NOT NULL -BEGIN - - SET @SQL_String_SELECT = N'' - - - SET @SQL_String_IN_Column_Name = N'' - - - SET @SQL_String_WHERE = N'' - - - SET @Loop_Column_Number = (SELECT MIN (X.column_row_number) FROM dbo.#temp_string_search_objects_columns X WHERE X.schema_object_dense_rank = @Loop_Object_Number) - - - SET @Loop_Column_Number_First = @Loop_Column_Number - - - WHILE @Loop_Column_Number IS NOT NULL - BEGIN - - SELECT - @SQL_String_SELECT = @SQL_String_SELECT + (CASE - WHEN @Loop_Column_Number = @Loop_Column_Number_First THEN N'SELECT' + NCHAR (13) + REPLICATE (NCHAR (9), 7) + N' ' - ELSE NCHAR (13) + REPLICATE (NCHAR (9), 7) + N',' - END) + N'CONVERT (NVARCHAR (MAX), (CASE - WHEN ' + (CASE - WHEN X.data_type = N'XML' THEN N'CONVERT (NVARCHAR (MAX), ' - ELSE N'' - END) + QUOTENAME (X.column_name) + (CASE - WHEN X.data_type = N'XML' THEN N')' - ELSE N'' - END) + N' LIKE ''%' + @Search_String + N'%'' THEN ' + QUOTENAME (X.column_name) + N' - ELSE NULL - END)) AS ' + QUOTENAME (X.column_name) - ,@SQL_String_IN_Column_Name = @SQL_String_IN_Column_Name + (CASE - WHEN @Loop_Column_Number = @Loop_Column_Number_First THEN N'' - ELSE N', ' - END) + QUOTENAME (X.column_name) - ,@SQL_String_WHERE = @SQL_String_WHERE + (CASE - WHEN @Loop_Column_Number = @Loop_Column_Number_First THEN NCHAR (13) + REPLICATE (NCHAR (9), 6) + N'WHERE' + NCHAR (13) + REPLICATE (NCHAR (9), 7) - ELSE NCHAR (13) + REPLICATE (NCHAR (9), 7) + N'OR ' - END) + (CASE - WHEN X.data_type = N'XML' THEN N'CONVERT (NVARCHAR (MAX), ' - ELSE N'' - END) + QUOTENAME (X.column_name) + (CASE - WHEN X.data_type = N'XML' THEN N')' - ELSE N'' - END) + N' LIKE ''%' + @Search_String + N'%''' - FROM - dbo.#temp_string_search_objects_columns X - WHERE - X.schema_object_dense_rank = @Loop_Object_Number - AND X.column_row_number = @Loop_Column_Number - - - SET @Loop_Column_Number = (SELECT MIN (X.column_row_number) FROM dbo.#temp_string_search_objects_columns X WHERE X.schema_object_dense_rank = @Loop_Object_Number AND X.column_row_number > @Loop_Column_Number) - - END - - - SET @SQL_String_Full = - - ( - N' - SELECT - ''' + @Schema_Name + N''' AS [schema_name] - ,''' + @Object_Name + N''' AS [object_name] - ,UNPV.column_name - ,UNPV.column_data - ,COUNT (*) AS occurrences - FROM - - ( - ' - + @SQL_String_SELECT - + NCHAR (13) + REPLICATE (NCHAR (9), 6) + N'FROM' + NCHAR (13) - + REPLICATE (NCHAR (9), 7) + @Database_Name - + N'.' - + QUOTENAME (@Schema_Name) - + N'.' - + QUOTENAME (@Object_Name) - + @SQL_String_WHERE - + N' - ) sqMAT - - UNPIVOT - - ( - column_data FOR column_name IN - - ( - ' + @SQL_String_IN_Column_Name + N' - ) - - ) UNPV - - GROUP BY - UNPV.column_name - ,UNPV.column_data - ' - ) - - - BEGIN TRY - - INSERT INTO dbo.#temp_string_search_results - - ( - [schema_name] - ,[object_name] - ,column_name - ,column_data - ,occurrences - ) - - EXECUTE (@SQL_String_Full) - - END TRY - BEGIN CATCH - - END CATCH - - - SELECT TOP (1) - @Loop_Object_Number = X.schema_object_dense_rank - ,@Schema_Name = X.[schema_name] - ,@Object_Name = X.[object_name] - FROM - dbo.#temp_string_search_objects_columns X - WHERE - X.schema_object_dense_rank = @Loop_Object_Number + 1 - ORDER BY - X.schema_object_dense_rank - - - IF @@ROWCOUNT = 0 - BEGIN - - SET @Loop_Object_Number = NULL - - END - -END - - ------------------------------------------------------------------------------------------------------------------------------ --- Main Query: Final Display / Output ------------------------------------------------------------------------------------------------------------------------------ - -SELECT - (CASE Y.object_type - WHEN 'U' THEN 'Table' - WHEN 'V' THEN 'View' - ELSE 'ERROR' - END) AS object_type - ,(CASE - WHEN Y.is_ms_shipped = 1 THEN 'Yes' - ELSE 'No' - END) AS is_ms_shipped - ,Y.data_type - ,Y.data_length - ,DB_NAME (DB_ID (SUBSTRING (@Database_Name, 2, LEN (@Database_Name) - 2))) AS database_name - ,Y.[schema_name] - ,Y.[object_name] - ,Y.column_name - ,Z.column_data - ,CONVERT (XML, (CASE - WHEN Y.data_type = N'XML' THEN Z.column_data - ELSE N'' - END)) AS column_data_xml - ,Z.occurrences -FROM - dbo.#temp_string_search_objects_columns Y - INNER JOIN dbo.#temp_string_search_results Z ON Z.[schema_name] = Y.[schema_name] - AND Z.[object_name] = Y.[object_name] - AND Z.column_name = Y.column_name -ORDER BY - Y.object_type - ,Y.is_ms_shipped - ,Y.[schema_name] - ,Y.[object_name] - ,Y.column_name - ,Z.column_data - - ------------------------------------------------------------------------------------------------------------------------------ --- Cleanup: Drop Any Remaining Temp Tables ------------------------------------------------------------------------------------------------------------------------------ - -IF OBJECT_ID (N'tempdb.dbo.#temp_string_search_objects_columns', N'U') IS NOT NULL -BEGIN - - DROP TABLE dbo.#temp_string_search_objects_columns - -END - - -IF OBJECT_ID (N'tempdb.dbo.#temp_string_search_results', N'U') IS NOT NULL -BEGIN - - DROP TABLE dbo.#temp_string_search_results - -END -GO diff --git a/Stored_Procedure/usp_bcpTableUnload.sql b/Stored_Procedure/usp_bcpTableUnload.sql deleted file mode 100644 index 8bfbeb4c..00000000 --- a/Stored_Procedure/usp_bcpTableUnload.sql +++ /dev/null @@ -1,139 +0,0 @@ -IF OBJECT_ID('dbo.usp_bcpTableUnload', 'P') IS NULL EXECUTE ('CREATE PROCEDURE dbo.usp_bcpTableUnload AS SELECT 1'); -go - -ALTER PROCEDURE dbo.usp_bcpTableUnload ( - @path NVARCHAR(900) - , @serverName SYSNAME = @@SERVERNAME - , @databaseName SYSNAME - , @schemaName SYSNAME - , @tableName SYSNAME - , @field_term NVARCHAR(10) = '|' - , @row_term NVARCHAR(10) = '\n' - , @fileExtension NVARCHAR(10) = 'txt' - , @codePage NVARCHAR(10) = 'C1251' - , @excludeColumns NVARCHAR(MAX) = '' - , @orderByColumns NVARCHAR(MAX) = '' - , @outputColumnHeaders BIT = 1 - , @debug BIT = 0 -) -AS -/* -bcp docs: https://msdn.microsoft.com/ru-ru/library/ms162802.aspx --- To allow advanced options to be changed. -EXEC sp_configure 'show advanced options', 1; -GO --- To update the currently configured value for advanced options. -RECONFIGURE; -GO --- To enable the feature. -EXEC sp_configure 'xp_cmdshell', 1; -GO --- To update the currently configured value for this feature. -RECONFIGURE; -GO -EXECUTE [dbo].[usp_bcpTableUnload] - @path = 'd:\' - , @databaseName = 'DatabaseName' - , @schemaName = 'dbo' - , @tableName = 'TableName' - , @field_term = '|' - , @row_term = '\n' - , @fileExtension = 'txt' - , @excludeColumns = '[CreatedDate],[ModifiedDate],[UserID]' - , @orderByColumns = 'TableNameID' - , @outputColumnHeaders = 1 - , @debug = 0; -*/ -BEGIN - - BEGIN TRY - IF @debug = 0 SET NOCOUNT ON; - - DECLARE @tsqlCommand NVARCHAR(MAX) = ''; - DECLARE @cmdCommand VARCHAR(8000) = ''; - DECLARE @ParmDefinition NVARCHAR(500) = '@object_idIN INTEGER, @ColumnsOUT VARCHAR(MAX) OUTPUT'; - DECLARE @tableFullName SYSNAME = QUOTENAME(@databaseName) + '.' + QUOTENAME(@schemaName) + '.' + QUOTENAME(@tableName); - DECLARE @object_id INTEGER = OBJECT_ID(@tableFullName); - DECLARE @Columns NVARCHAR(MAX) = ''; - DECLARE @filePath NVARCHAR(900) = @path + @tableFullName + '.' + @fileExtension; - DECLARE @crlf NVARCHAR(10) = CHAR(13); - DECLARE @orderByColumns_term NVARCHAR(10) = ','; - DECLARE @TROW50000 NVARCHAR(MAX) = 'Table ' + @tableFullName + ' is not exists in database ' + QUOTENAME(@databaseName) + '!!!'; - DECLARE @TROW50001 NVARCHAR(MAX) = 'Some columns in @orderByColumns = {' + @orderByColumns + '} not exists in table ' + @tableFullName + '!!!'; - - IF @debug = 1 PRINT ISNULL('/******* Start Debug' + @crlf + '@tableFullName = {' + CAST(@tableFullName AS NVARCHAR(MAX)) + '}', '@tableFullName = {Null}'); - IF @debug = 1 PRINT ISNULL('@object_id = {' + CAST(@object_id AS NVARCHAR(MAX)) + '}', '@object_id = {Null}'); - - IF @object_id IS NULL THROW 50000, @TROW50000, 1 - IF @orderByColumns <> '' - BEGIN - SET @tsqlCommand = N'USE ' + @databaseName + ';' + @crlf + - N'SELECT @ColumnsOUT = COUNT(*)' + @crlf + - N'FROM sys.columns sac ' + @crlf + - N'WHERE sac.object_id = @object_idIN' + @crlf + - N' AND QUOTENAME(Name) IN (''[' + REPLACE(@orderByColumns, ',', ']'',''[') + ']'');' + @crlf; - - IF @debug = 1 PRINT ISNULL(N'@tsqlCommand = {' + @crlf + @tsqlCommand + @crlf + N'}', N'@tsqlCommand = {Null}'); - EXECUTE sp_executesql @tsqlCommand, @ParmDefinition, @object_idIN = @object_id, @ColumnsOUT = @Columns OUTPUT SELECT @Columns; - IF @Columns <> (DATALENGTH(@orderByColumns) - DATALENGTH(Replace(@orderByColumns, @orderByColumns_term, ''))) / DATALENGTH(@orderByColumns_term) + 1 - THROW 50001, @TROW50001, 1; - SET @Columns = ''; - END; - - SET @tsqlCommand = N'USE ' + @databaseName + ';' + @crlf + - N'SELECT @ColumnsOUT = @ColumnsOUT + QUOTENAME(Name) + '',''' + @crlf + - N'FROM sys.columns sac ' + @crlf + - N'WHERE sac.object_id = @object_idIN' + @crlf + - N' AND QUOTENAME(Name) NOT IN (''' + REPLACE(@excludeColumns, ',', ''',''') + ''')' + @crlf + - N'ORDER BY Name;'; - - IF @debug = 1 PRINT ISNULL(N'@tsqlCommand = {' + @crlf + @tsqlCommand + @crlf + N'}', N'@tsqlCommand = {Null}'); - - EXECUTE sp_executesql @tsqlCommand, @ParmDefinition, @object_idIN = @object_id, @ColumnsOUT = @Columns OUTPUT SELECT @Columns; - - IF @debug = 1 PRINT ISNULL('@Columns = {' + @crlf + @Columns + @crlf + '}', '@Columns = {Null}'); - - SET @Columns = CASE WHEN LEN(@Columns) > 0 THEN LEFT(@Columns, LEN(@Columns) - 1) END; - - IF @debug = 1 PRINT CAST(ISNULL('@Columns = {' + @Columns + '}', '@Columns = {Null}') AS TEXT); - - SET @tsqlCommand = 'EXECUTE xp_cmdshell ' + '''bcp "SELECT ' + @Columns + ' FROM ' + @tableFullName + - CASE WHEN @orderByColumns <> '' THEN ' ORDER BY ' + @orderByColumns ELSE '' END + - '" queryout "' + @filePath + '" -T -S ' + @serverName +' -c -' + @codePage + - ' -t"' + @field_term + '"' + ' -r"' + @row_term + '"''' + @crlf; - - IF @debug = 1 PRINT CAST(ISNULL('@tsqlCommand = {' + @crlf + @tsqlCommand + @crlf + '}', '@tsqlCommand = {Null}' + @crlf) AS TEXT); - ELSE EXECUTE sp_executesql @tsqlCommand; - - IF @outputColumnHeaders = 1 - BEGIN - SET @tsqlCommand = 'EXECUTE xp_cmdshell ' + '''bcp "SELECT ''''' + REPLACE(@Columns, ',', @field_term) + - '''''" queryout "' + @path + @tableFullName + '_headers.txt' + '" -T -S ' + - @serverName + ' -c -' + @codePage + ' -t"' + @field_term + '"' + - ' -r"' + @row_term + '"''' + @crlf; - - IF @debug = 1 PRINT CAST(ISNULL('@tsqlCommand = {' + @crlf + @tsqlCommand + @crlf + '}', - '@tsqlCommand = {Null}' + @crlf) AS TEXT); - ELSE EXECUTE sp_executesql @tsqlCommand; - - SET @cmdCommand = 'copy /b ' + @path + @tableFullName + '_headers.' + @fileExtension + ' + ' + - @filePath + ' ' + @path + @tableFullName + '_headers.' + @fileExtension; - - IF @debug = 1 PRINT CAST(ISNULL('@cmdCommand = {' + @crlf + @cmdCommand + @crlf + '}', '@cmdCommand = {Null}' + @crlf) AS TEXT) - ELSE EXECUTE xp_cmdshell @cmdCommand; - - SET @cmdCommand = 'del ' + @filePath; - - IF @debug = 1 PRINT CAST(ISNULL('@cmdCommand = {' + @crlf + @cmdCommand + @crlf + '}', '@cmdCommand = {Null}' + @crlf) AS TEXT) - ELSE EXECUTE xp_cmdshell @cmdCommand; - END - - IF @debug = 1 PRINT '--End Deubg*********/'; - ELSE SET NOCOUNT OFF; - END TRY - - BEGIN CATCH - EXECUTE dbo.usp_LogError; - EXECUTE dbo.usp_PrintError; - END CATCH -END; diff --git a/Stored_Procedure/usp_who5.sql b/Stored_Procedure/usp_who5.sql deleted file mode 100644 index 95028a05..00000000 --- a/Stored_Procedure/usp_who5.sql +++ /dev/null @@ -1,748 +0,0 @@ -SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED -SET NOCOUNT ON - - ------------------------------------------------------------------------------------------------------------------------------ --- Error Trapping: Check If Procedure Already Exists And Create Shell If Applicable ------------------------------------------------------------------------------------------------------------------------------ - -IF OBJECT_ID (N'dbo.usp_who5', N'P') IS NULL -BEGIN - - EXECUTE ('CREATE PROCEDURE dbo.usp_who5 AS SELECT 1 AS shell') - -END -GO - - ------------------------------------------------------------------------------------------------------------------------------ --- Stored Procedure Details: Listing Of Standard Details Related To The Stored Procedure ------------------------------------------------------------------------------------------------------------------------------ - --- Purpose: Return Information Regarding Current Users / Sessions / Processes On A SQL Server Instance --- Create Date (MM/DD/YYYY): 10/27/2009 --- Developer: Sean Smith (s.smith.sql AT gmail DOT com) --- Additional Notes: N/A - - ------------------------------------------------------------------------------------------------------------------------------ --- Modification History: Listing Of All Modifications Since Original Implementation ------------------------------------------------------------------------------------------------------------------------------ - --- Description: Converted Script To Dynamic-SQL --- : Minor Changes To Code Style --- : Added "@Database_Name" Filter Variable --- : Added "Last_Wait_Type", "Query_Plan", And "Wait_Type" Fields To Output --- Date (MM/DD/YYYY): 08/08/2011 --- Developer: Sean Smith (s.smith.sql AT gmail DOT com) --- Additional Notes: N/A - - --- Description: Renamed Input Variables --- : Added "Plan_Cache_Object_Type", "Plan_Object_Type", "Plan_Times_Used", And "Plan_Size_MB" Fields To Output --- : Changed Help Output From RAISERROR To PRINT --- : Merged "I?" And "O?" Help Parameters Into "?" --- : Added "C" Type "@Filter" Option --- : Rewrote Time Calculation Logic --- Date (MM/DD/YYYY): 11/09/2011 --- Developer: Sean Smith (s.smith.sql AT gmail DOT com) --- Additional Notes: N/A - - --- Description: Expanded "Running" Type Indicators --- : Added System Reserved SPID Indicator To "SPECID" --- : Added "SQL_Statement_Current" And "End_Of_Batch" Fields To Output --- Date (MM/DD/YYYY): 02/01/2012 --- Developer: Sean Smith (s.smith.sql AT gmail DOT com) --- Additional Notes: N/A - - --- Description: Minor Code Formatting Changes --- : Bug Fixes --- : Changes To Date Calculation Method --- Date (MM/DD/YYYY): 08/19/2013 --- Developer: Sean Smith (s.smith.sql AT gmail DOT com) --- Additional Notes: N/A - - --- Description: Added "Batch_Pct", "Command_Completion", "Command_Pct", "Command_Time_Left", "Deadlock_Priority", "Isolation_Level", "Last_Row_Count", "Lock_Details", "Lock_Timeout_Seconds", And "Previous_Error" Fields To Output --- Date (MM/DD/YYYY): 11/24/2013 --- Developer: Sean Smith (s.smith.sql AT gmail DOT com) --- Additional Notes: N/A - - --- Description: Massive Rewrite Of Entire Stored Procedure --- Date (MM/DD/YYYY): 11/28/2015 --- Developer: Sean Smith (s.smith.sql AT gmail DOT com) --- Additional Notes: N/A - - ------------------------------------------------------------------------------------------------------------------------------ --- Main Query: Create Procedure ------------------------------------------------------------------------------------------------------------------------------ - -ALTER PROCEDURE dbo.usp_who5 - - @Filter AS NVARCHAR (5) = NULL - ,@Database_Name AS NVARCHAR (512) = NULL - ,@Exclude_Lock AS BIT = 1 - ,@Exclude_Plan AS BIT = 1 - ,@Exclude_SQL AS BIT = 0 - ,@Exclude_SQL_XML AS BIT = 1 - ,@Login AS NVARCHAR (128) = NULL - ,@SPID AS SMALLINT = NULL - ,@SQL_Text AS NVARCHAR (MAX) = NULL - -AS - -SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED -SET NOCOUNT ON -SET ANSI_WARNINGS OFF -SET ARITHABORT OFF -SET ARITHIGNORE ON -SET TEXTSIZE 2147483647 - - -DECLARE - @Ampersand AS NVARCHAR (1) - ,@Print AS NVARCHAR (MAX) - - -SET @Ampersand = N'&' - - ------------------------------------------------------------------------------------------------------------------------------ --- Error Trapping: Check If "@Filter" Parameter Is An Input / Output Help Request ------------------------------------------------------------------------------------------------------------------------------ - -IF @Filter = N'?' -BEGIN - - SET @Print = - - N' -Optional input parameters: - - @Filter : Limit the result set by passing one or more values listed below (can be combined in any order) - - A - Active sessions only (includes sleeping SPIDs with open transactions) - B - Blocked sessions only - S - Exclude sleeping SPIDs with open transactions - X - Exclude system processes - - @Database_Name : Limit the result set to a specific database (use ---------- for NULL database names) - @Exclude_Lock : Suppress locking details from the output (can increases procedure performance on busy servers; defaulted to 1) - @Exclude_Plan : Suppress execution plan details from the output (can increases procedure performance on busy servers; defaulted to 1) - @Exclude_SQL : Suppress SQL statement details from the output (can increases procedure performance on busy servers; defaulted to 0) - @Exclude_SQL_XML : Suppress SQL statement XML details from the output (can increases procedure performance on busy servers; defaulted to 1) - @Login : Limit the result set to a specific Windows user name (if populated, otherwise by SQL Server login name) - @SPID : Limit the result set to a specific session - @SQL_Text : Limit the result set to SQL statements containing specific text - - -Notes: - - Blocking / blocked sessions will always be displayed first in the result set (when applicable) - - -Output: - - SPECID : System Process ID with Execution Context ID - Database_Name : Database context of the session - Running : Indicates if the session is executing (X), waiting ([]), inactive (blank), inactive with open transactions (•), a background task (--), or not defined (N/A) - Blocking : Blocking indicator (includes type of block and SPID list) - Status : Status of the session -> request -> task - Object_Name : Object being referenced (blank for ad hoc and prepared statements) - Command : Command executed - SQL_Statement_Batch : Batch statement of the session - SQL_Statement_Current : Current statement of the session - Open_Trans : Open transactions for the process - Isolation_Level : Isolation level of the session - Wait_Time : Current wait time (DAYS HH:MM:SS) - Wait_Type : Current wait type - Last_Wait_Type : Previous wait type - SQL_Statement_Batch_XML : Same as "SQL_Statement_Batch" but in XML format - SQL_Statement_Current_XML : Same as "SQL_Statement_Current" but in XML format - SQL_Handle : Identifier for the executing batch or object - Elapsed_Time : Elapsed time since the request began (DAYS HH:MM:SS) - CPU_Total : CPU time used since login (DAYS HH:MM:SS) - CPU_Current : CPU time used for the current process (DAYS HH:MM:SS) - Logical_Reads_Total : Logical reads performed since login - Logical_Reads_Current : Logical reads performed by the current process - Physical_Reads_Total : Physical reads performed since login - Physical_Reads_Current : Physical reads performed by the current process - Writes_Total : Writes performed since login - Writes_Current : Writes performed by the current process - Nesting_Level : Nesting level of the statement currently executing - Last_Row_Count : Row count produced by the last statement executed - Allocated_Memory_MB : Memory allocated to the query in megabytes - Pages_Used : Pages in the procedure cache allocated to the process - Since_SPID_Login : Elapsed time since the client logged in (DAYS HH:MM:SS) - Since_Last_Batch_Start : Elapsed time since the last request began (DAYS HH:MM:SS) - Since_Last_Batch_End : Elapsed time since the last completion of a request (DAYS HH:MM:SS) - Query_Plan : Execution plan of the session (in XML format) - Plan_Cache_Object_Type : Type of object in the cache - Plan_Object_Type : Plan object type - Plan_Times_Used : Times the plan has been utilized since its creation - Plan_Size_MB : Size consumed by the plan in megabytes - Plan_Handle : Identifier for the in-memory plan - Batch_Pct : Percentage of the batch which has been processed - End_Of_Batch : Indicates if the current statement is the last of the entire batch - Command_Pct : Percentage of work completed (applies to a limited set of commands) - Command_Completion : Estimated completion time for the command - Command_Time_Left : Time left before the command completes (DAYS HH:MM:SS) - Lock_Details : Lock details of the session (in XML format) - Lock_Timeout_Seconds : Lock timeout of the session - Deadlock_Priority : Deadlock priority of the session - Host_Name : Name of the client workstation specific to a session - Login_ID : Windows user name (or "Login_Name" if user name is unavailable) - Login_Name : Full name of the user associated to the "Login_ID" - Application_Description : Application accessing SQL Server - Previous_Error : Previous error returned by the session - System_Process : Indicates if the session is a system process - SPECID : System Process ID with Execution Context ID - ' - - - PRINT SUBSTRING (@Print, 1, 3989) - - - PRINT SUBSTRING (@Print, 3992, 4000) - - - RETURN - -END - - ------------------------------------------------------------------------------------------------------------------------------ --- Declarations / Sets: Declare And Set Variables ------------------------------------------------------------------------------------------------------------------------------ - -DECLARE - @Filter_Active AS BIT - ,@Filter_Blocked AS BIT - ,@Filter_Sleeping AS BIT - ,@Filter_System AS BIT - - -SET @Database_Name = NULLIF (@Database_Name, N'') - - -SET @Filter_Active = (CASE - WHEN @Filter LIKE N'%A%' THEN 1 - ELSE 0 - END) - - -SET @Filter_Blocked = (CASE - WHEN @Filter LIKE N'%B%' THEN 1 - ELSE 0 - END) - - -SET @Filter_Sleeping = (CASE - WHEN @Filter LIKE N'%S%' THEN 1 - ELSE 0 - END) - - -SET @Filter_System = (CASE - WHEN @Filter LIKE N'%X%' THEN 1 - ELSE 0 - END) - - -SET @Login = NULLIF (@Login, N'') - - -SET @SQL_Text = NULLIF (REPLACE (@SQL_Text, N'''', N''''''), N'') - - ------------------------------------------------------------------------------------------------------------------------------ --- Main Query: Final Display / Output ------------------------------------------------------------------------------------------------------------------------------ - -SELECT - caCV.SPECID - ,ISNULL (DB.name, N'----------') AS Database_Name - ,REPLICATE (N' ', 5) + (CASE - WHEN caCV.status_session = N'BACKGROUND' THEN N'---' - WHEN caCV.status_session IN (N'dormant', N'sleeping') AND SP.open_tran = 0 THEN N'' - WHEN caCV.status_session IN (N'dormant', N'sleeping') AND SP.open_tran > 0 THEN N'•' - WHEN caCV.status_session IN (N'PENDING', N'PRECONNECT', N'RUNNABLE', N'SPINLOOP', N'SUSPENDED') THEN N'[]' - WHEN caCV.status_session IN (N'ROLLBACK', N'RUNNING') THEN N'X' - ELSE N'N/A' - END) AS Running - ,(CASE - WHEN caCV.blocking IS NULL AND NULLIF (DER.blocking_session_id, 0) IS NULL THEN N'' - WHEN DER.blocking_session_id = DXS.session_id THEN N'> Parallelism <' - ELSE ISNULL (N'[ Blocking ] : ' + caCV.blocking, N'') + (CASE - WHEN caCV.blocking IS NOT NULL AND DER.blocking_session_id <> 0 THEN N' •• ' - ELSE N'' - END) + ISNULL (N'< Blocked By > : ' + CONVERT (NVARCHAR (6), NULLIF (DER.blocking_session_id, 0)), N'') - END) AS Blocking - ,caCV.status_session + N' -> ' + ISNULL (caCV.status_request, N'N/A') + N' -> ' + ISNULL (caCV.status_task, N'N/A') AS [Status] - ,COALESCE (OBJECT_NAME (DEST.objectid, DEST.[dbid]), OBJECT_NAME (DEQP.objectid, DEQP.[dbid]), N'') AS [Object_Name] - ,(CASE - WHEN ISNULL (DER.command, SP.cmd) = N'AWAITING COMMAND' THEN LOWER (ISNULL (DER.command, SP.cmd)) - ELSE ISNULL (DER.command, SP.cmd) - END) AS Command - ,ISNULL (DEST.[text], N'') AS SQL_Statement_Batch - ,ISNULL ((CASE - WHEN DEST.[text] IS NULL THEN N'' - WHEN caCV.status_session = N'sleeping' AND caCV.status_request IS NULL AND caCV.status_task IS NULL THEN N'' - WHEN caCV.statement_start_offset < 1 AND caCV.statement_end_offset = -1 THEN N'<< Single Statement >>' - WHEN (DATALENGTH (DEST.[text]) - caCV.statement_start_offset) / 2 < 0 AND caCV.statement_end_offset = -1 THEN N'<< Derived Statement >>' - WHEN caCV.statement_end_offset = -1 THEN SUBSTRING (DEST.[text], (caCV.statement_start_offset / 2) + 1, ((DATALENGTH (DEST.[text]) - caCV.statement_start_offset) / 2) + 1) - ELSE SUBSTRING (DEST.[text], (caCV.statement_start_offset / 2) + 1, ((caCV.statement_end_offset - caCV.statement_start_offset) / 2) + 1) - END), N'') AS SQL_Statement_Current - ,(CASE - WHEN SP.open_tran = 0 THEN N'' - ELSE CONVERT (NVARCHAR (6), SP.open_tran) - END) AS Open_Trans - ,(CASE DXS.transaction_isolation_level - WHEN 0 THEN N'UNSPECIFIED' - WHEN 1 THEN N'READ UNCOMMITTED' - WHEN 2 THEN N'READ COMMITTED' - WHEN 3 THEN N'REPEATABLE READ' - WHEN 4 THEN N'SERIALIZABLE' - WHEN 5 THEN N'SNAPSHOT' - ELSE N'N/A' - END) AS Isolation_Level - ,ISNULL ((CASE - WHEN oaDHMS.wait_time_days <= 0 THEN REPLICATE (N'_', cjMAX.wait_time_days_length_max) - ELSE REPLICATE (N'0', cjMAX.wait_time_days_length_max - LEN (oaDHMS.wait_time_days)) + oaDHMS.wait_time_days - END) + N' Day(s) ' + (CASE - WHEN oaDHMS.wait_time_hhmmss = N'00:00:00' THEN N'__:__:__' - WHEN LEFT (oaDHMS.wait_time_hhmmss, 5) = N'00:00' THEN N'__:__:' + RIGHT (oaDHMS.wait_time_hhmmss, 2) - WHEN LEFT (oaDHMS.wait_time_hhmmss, 2) = N'00' THEN N'__:' + RIGHT (oaDHMS.wait_time_hhmmss, 5) - ELSE oaDHMS.wait_time_hhmmss - END), N'') AS Wait_Time - ,ISNULL (DER.wait_type, N'') AS Wait_Type - ,ISNULL (DER.last_wait_type, N'') AS Last_Wait_Type - ,CONVERT (XML, ISNULL ((CASE - WHEN (@Exclude_SQL = 1 OR @Exclude_SQL_XML = 1) THEN N'' - ELSE REPLACE (REPLACE (REPLACE (REPLACE (REPLACE (DEST.[text], N'&', @Ampersand + N'amp;'), N'<', @Ampersand + N'lt;'), N'>', @Ampersand + N'gt;'), N'"', @Ampersand + N'quot;'), N'''', @Ampersand + N'#39;') - END), N'')) AS SQL_Statement_Batch_XML - ,CONVERT (XML, (CASE - WHEN (@Exclude_SQL = 1 OR @Exclude_SQL_XML = 1) THEN N'' - ELSE REPLACE (REPLACE (REPLACE (REPLACE (REPLACE (ISNULL (NULLIF (NULLIF (oaSSC.SQL_Statement_Current, N'<< Derived Statement >>'), N'<< Single Statement >>'), DEST.[text]), N'&', @Ampersand + N'amp;'), N'<', @Ampersand + N'lt;'), N'>', @Ampersand + N'gt;'), N'"', @Ampersand + N'quot;'), N'''', @Ampersand + N'#39;') - END)) AS SQL_Statement_Current_XML - ,ISNULL (CONVERT (NVARCHAR (130), (CASE - WHEN SP.[sql_handle] <> 0x0000000000000000000000000000000000000000 THEN SP.[sql_handle] - END), 1), N'') AS [SQL_Handle] - ,ISNULL ((CASE - WHEN oaDHMS.total_elapsed_time_days <= 0 THEN REPLICATE (N'_', cjMAX.total_elapsed_time_days_length_max) - ELSE REPLICATE (N'0', cjMAX.total_elapsed_time_days_length_max - LEN (oaDHMS.total_elapsed_time_days)) + oaDHMS.total_elapsed_time_days - END) + N' Day(s) ' + (CASE - WHEN oaDHMS.total_elapsed_time_hhmmss = N'00:00:00' THEN N'__:__:__' - WHEN LEFT (oaDHMS.total_elapsed_time_hhmmss, 5) = N'00:00' THEN N'__:__:' + RIGHT (oaDHMS.total_elapsed_time_hhmmss, 2) - WHEN LEFT (oaDHMS.total_elapsed_time_hhmmss, 2) = N'00' THEN N'__:' + RIGHT (oaDHMS.total_elapsed_time_hhmmss, 5) - ELSE oaDHMS.total_elapsed_time_hhmmss - END), N'') AS Elapsed_Time - ,ISNULL ((CASE - WHEN oaDHMS.cpu_days <= 0 THEN REPLICATE (N'_', cjMAX.cpu_days_length_max) - ELSE REPLICATE (N'0', cjMAX.cpu_days_length_max - LEN (oaDHMS.cpu_days)) + oaDHMS.cpu_days - END) + N' Day(s) ' + (CASE - WHEN oaDHMS.cpu_hhmmss = N'00:00:00' THEN N'__:__:__' - WHEN LEFT (oaDHMS.cpu_hhmmss, 5) = N'00:00' THEN N'__:__:' + RIGHT (oaDHMS.cpu_hhmmss, 2) - WHEN LEFT (oaDHMS.cpu_hhmmss, 2) = N'00' THEN N'__:' + RIGHT (oaDHMS.cpu_hhmmss, 5) - ELSE oaDHMS.cpu_hhmmss - END), N'') AS CPU_Total - ,ISNULL ((CASE - WHEN oaDHMS.cpu_time_days <= 0 THEN REPLICATE (N'_', cjMAX.cpu_time_days_length_max) - ELSE REPLICATE (N'0', cjMAX.cpu_time_days_length_max - LEN (oaDHMS.cpu_time_days)) + oaDHMS.cpu_time_days - END) + N' Day(s) ' + (CASE - WHEN oaDHMS.cpu_time_hhmmss = N'00:00:00' THEN N'__:__:__' - WHEN LEFT (oaDHMS.cpu_time_hhmmss, 5) = N'00:00' THEN N'__:__:' + RIGHT (oaDHMS.cpu_time_hhmmss, 2) - WHEN LEFT (oaDHMS.cpu_time_hhmmss, 2) = N'00' THEN N'__:' + RIGHT (oaDHMS.cpu_time_hhmmss, 5) - ELSE oaDHMS.cpu_time_hhmmss - END), N'') AS CPU_Current - ,ISNULL (REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (DXS.logical_reads, 0)), 1)), 4, 23)), N'') AS Logical_Reads_Total - ,ISNULL (REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (DER.logical_reads, 0)), 1)), 4, 23)), N'') AS Logical_Reads_Current - ,ISNULL (REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (DXS.reads, 0)), 1)), 4, 23)), N'') AS Physical_Reads_Total - ,ISNULL (REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (DER.reads, 0)), 1)), 4, 23)), N'') AS Physical_Reads_Current - ,ISNULL (REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (DXS.writes, 0)), 1)), 4, 23)), N'') AS Writes_Total - ,ISNULL (REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (DER.writes, 0)), 1)), 4, 23)), N'') AS Writes_Current - ,ISNULL (CONVERT (NVARCHAR (11), DER.nest_level), N'') AS Nesting_Level - ,(CASE - WHEN DXS.row_count = 0 THEN N'' - ELSE REVERSE (SUBSTRING (REVERSE (CONVERT (NVARCHAR (23), CONVERT (MONEY, NULLIF (DXS.row_count, 0)), 1)), 4, 23)) - END) AS Last_Row_Count - ,ISNULL ((CASE - WHEN ISNULL (DOT.exec_context_id, 0) = 0 THEN CONVERT (NVARCHAR (23), CONVERT (MONEY, (NULLIF (DER.granted_query_memory, 0) * 8) / 1024.0), 1) - END), N'') AS Allocated_Memory_MB - ,(CASE - WHEN DXS.memory_usage = 0 THEN N'' - ELSE CONVERT (NVARCHAR (11), DXS.memory_usage) - END) AS Pages_Used - ,ISNULL ((CASE - WHEN oaDHMS.login_time_days <= 0 THEN REPLICATE (N'_', cjMAX.login_time_days_length_max) - ELSE REPLICATE (N'0', cjMAX.login_time_days_length_max - LEN (oaDHMS.login_time_days)) + oaDHMS.login_time_days - END) + N' Day(s) ' + (CASE - WHEN oaDHMS.login_time_hhmmss = N'00:00:00' THEN N'__:__:__' - WHEN LEFT (oaDHMS.login_time_hhmmss, 5) = N'00:00' THEN N'__:__:' + RIGHT (oaDHMS.login_time_hhmmss, 2) - WHEN LEFT (oaDHMS.login_time_hhmmss, 2) = N'00' THEN N'__:' + RIGHT (oaDHMS.login_time_hhmmss, 5) - ELSE oaDHMS.login_time_hhmmss - END), N'') AS Since_SPID_Login - ,ISNULL ((CASE - WHEN oaDHMS.last_request_start_time_days <= 0 THEN REPLICATE (N'_', cjMAX.last_request_start_time_days_length_max) - ELSE REPLICATE (N'0', cjMAX.last_request_start_time_days_length_max - LEN (oaDHMS.last_request_start_time_days)) + oaDHMS.last_request_start_time_days - END) + N' Day(s) ' + (CASE - WHEN oaDHMS.last_request_start_time_hhmmss = N'00:00:00' THEN N'__:__:__' - WHEN LEFT (oaDHMS.last_request_start_time_hhmmss, 5) = N'00:00' THEN N'__:__:' + RIGHT (oaDHMS.last_request_start_time_hhmmss, 2) - WHEN LEFT (oaDHMS.last_request_start_time_hhmmss, 2) = N'00' THEN N'__:' + RIGHT (oaDHMS.last_request_start_time_hhmmss, 5) - ELSE oaDHMS.last_request_start_time_hhmmss - END), N'') AS Since_Last_Batch_Start - ,ISNULL ((CASE - WHEN oaDHMS.last_request_end_time_days <= 0 THEN REPLICATE (N'_', cjMAX.last_request_end_time_days_length_max) - ELSE REPLICATE (N'0', cjMAX.last_request_end_time_days_length_max - LEN (oaDHMS.last_request_end_time_days)) + oaDHMS.last_request_end_time_days - END) + N' Day(s) ' + (CASE - WHEN oaDHMS.last_request_end_time_hhmmss = N'00:00:00' THEN N'__:__:__' - WHEN LEFT (oaDHMS.last_request_end_time_hhmmss, 5) = N'00:00' THEN N'__:__:' + RIGHT (oaDHMS.last_request_end_time_hhmmss, 2) - WHEN LEFT (oaDHMS.last_request_end_time_hhmmss, 2) = N'00' THEN N'__:' + RIGHT (oaDHMS.last_request_end_time_hhmmss, 5) - ELSE oaDHMS.last_request_end_time_hhmmss - END), N'') AS Since_Last_Batch_End - ,ISNULL (DEQP.query_plan, N'') AS Query_Plan - ,ISNULL (DECP.cacheobjtype, N'') AS Plan_Cache_Object_Type - ,ISNULL ((CASE - WHEN DECP.objtype = N'Adhoc' THEN N'Ad Hoc Query' - WHEN DECP.objtype = N'Check' THEN N'CHECK Constraint' - WHEN DECP.objtype = N'Prepared' THEN N'Prepared Statement' - WHEN DECP.objtype = N'Proc' THEN N'Stored Procedure' - WHEN DECP.objtype = N'ReplProc' THEN N'Replication Filter Procedure' - WHEN DECP.objtype = N'SysTab' THEN N'System Table' - WHEN DECP.objtype = N'UsrTab' THEN N'User Table' - ELSE DECP.objtype - END), N'') AS Plan_Object_Type - ,ISNULL (CONVERT (NVARCHAR (11), DECP.usecounts), N'') AS Plan_Times_Used - ,ISNULL (CONVERT (NVARCHAR (11), CONVERT (DECIMAL (18, 2), ROUND (DECP.size_in_bytes / 1048576.0, 2))), N'') AS Plan_Size_MB - ,ISNULL (CONVERT (NVARCHAR (130), DER.plan_handle, 1), N'') AS Plan_Handle - ,ISNULL ((CASE - WHEN caCV.statement_start_offset = -1 AND caCV.statement_end_offset = -1 AND SP.open_tran = 0 THEN N'' - WHEN caCV.statement_start_offset = -1 AND caCV.statement_end_offset = -1 AND SP.open_tran > 0 THEN N'100.00' - WHEN caCV.statement_start_offset = 0 THEN N'0.00' - WHEN (DATALENGTH (DEST.[text]) - caCV.statement_start_offset) / 2 < 0 AND caCV.statement_end_offset = -1 THEN N'N/A' - ELSE CONVERT (NVARCHAR (23), CONVERT (DECIMAL (20, 2), ROUND (((caCV.statement_start_offset - 2.0) / DATALENGTH (DEST.[text])) * 100, 2))) - END), N'') AS Batch_Pct - ,(CASE - WHEN caCV.statement_end_offset = -1 AND DEST.[text] IS NOT NULL THEN N'Yes' - WHEN caCV.statement_end_offset > 0 THEN N'No' - ELSE N'' - END) AS End_Of_Batch - ,ISNULL ((CASE - WHEN DER.percent_complete = 0 THEN N'' - ELSE CONVERT (NVARCHAR (7), CONVERT (DECIMAL (5, 2), DER.percent_complete)) - END), N'') AS Command_Pct - ,ISNULL ((CASE - WHEN DER.percent_complete = 0 THEN N'' - ELSE CONVERT (NVARCHAR (19), DATEADD (MILLISECOND, DER.estimated_completion_time, GETDATE ()), 120) - END), N'') AS Command_Completion - ,ISNULL ((CASE - WHEN oaDHMS.estimated_completion_time_days <= 0 THEN REPLICATE (N'_', cjMAX.estimated_completion_time_days_length_max) - ELSE REPLICATE (N'0', cjMAX.estimated_completion_time_days_length_max - LEN (oaDHMS.estimated_completion_time_days)) + oaDHMS.estimated_completion_time_days - END) + N' Day(s) ' + (CASE - WHEN oaDHMS.estimated_completion_time_hhmmss = N'00:00:00' THEN N'__:__:__' - WHEN LEFT (oaDHMS.estimated_completion_time_hhmmss, 5) = N'00:00' THEN N'__:__:' + RIGHT (oaDHMS.estimated_completion_time_hhmmss, 2) - WHEN LEFT (oaDHMS.estimated_completion_time_hhmmss, 2) = N'00' THEN N'__:' + RIGHT (oaDHMS.estimated_completion_time_hhmmss, 5) - ELSE oaDHMS.estimated_completion_time_hhmmss - END), N'') AS Command_Time_Left - ,ISNULL (( - SELECT DISTINCT - (CASE - WHEN SLI.rsc_type = 2 THEN ISNULL (DB.name, N'----------') - WHEN SLI.rsc_type = 5 AND SLI.req_mode = 2 THEN N'LOCKED' - ELSE ISNULL (OBJECT_NAME (SLI.rsc_objid, SLI.rsc_dbid), N'N/A') - END) - + N': ' - + (CASE SLI.rsc_type - WHEN 1 THEN N'NULL Resource' - WHEN 2 THEN N'Database' - WHEN 3 THEN N'File' - WHEN 4 THEN N'Index' - WHEN 5 THEN N'Object' - WHEN 6 THEN N'Page' - WHEN 7 THEN N'Key' - WHEN 8 THEN N'Extent' - WHEN 9 THEN N'Row ID (RID)' - WHEN 10 THEN N'Application' - WHEN 11 THEN N'Metadata' - WHEN 12 THEN N'Heap Or B-Tree (HoBt)' - WHEN 13 THEN N'Allocation Unit' - ELSE N'N/A' - END) - + ISNULL (N' [' + CONVERT (NVARCHAR (11), NULLIF (SLI.rsc_indid, 0)) + N']', N'') - + N' - ' - + (CASE SLI.req_mode - WHEN 0 THEN N'NULL Resource' - WHEN 1 THEN N'Sch-S: Schema Stability' - WHEN 2 THEN N'Sch-M: Schema Modification' - WHEN 3 THEN N'S: Shared' - WHEN 4 THEN N'U: Update' - WHEN 5 THEN N'X: Exclusive' - WHEN 6 THEN N'IS: Intent Shared' - WHEN 7 THEN N'IU: Intent Update' - WHEN 8 THEN N'IX: Intent Exclusive' - WHEN 9 THEN N'SIU: Shared Intent Update' - WHEN 10 THEN N'SIX: Shared Intent Exclusive' - WHEN 11 THEN N'UIX: Update Intent Exclusive' - WHEN 12 THEN N'BU: Bulk Update' - WHEN 13 THEN N'RangeS-S: Serializable Range Scan' - WHEN 14 THEN N'RangeS-U: Serializable Update Scan' - WHEN 15 THEN N'RangeI-N: Insert Key-Range / Null Resource Lock' - WHEN 16 THEN N'RangeI-S: Overlap Of RangeI-N / S Locks' - WHEN 17 THEN N'RangeI-U: Overlap Of RangeI-N / U Locks' - WHEN 18 THEN N'RangeI-X: Overlap Of RangeI-N / X Locks' - WHEN 19 THEN N'RangeX-S: Overlap Of RangeI-N / RangeS-S Locks' - WHEN 20 THEN N'RangeX-U: Overlap Of RangeI-N / RangeS-U Locks' - WHEN 21 THEN N'RangeX-X: Exclusive Key-Range / Exclusive Resource Lock' - ELSE N'N/A' - END) - + N' (' - + (CASE SLI.req_status - WHEN 1 THEN N'Granted' - WHEN 2 THEN N'Convert' - WHEN 3 THEN N'Wait' - WHEN 4 THEN N'RELN' - WHEN 5 THEN N'BLCKN' - ELSE N'N/A' - END) - + N' / ' - + (CASE SLI.req_ownertype - WHEN 1 THEN N'Transaction' - WHEN 2 THEN N'Cursor' - WHEN 3 THEN N'User Session' - WHEN 4 THEN N'Shared Transaction Workspace' - WHEN 5 THEN N'Exclusive Transaction Workspace' - WHEN 6 THEN N'WFR' - ELSE N'N/A' - END) - + N')' - + NCHAR (13) - + NCHAR (10) AS [text()] - FROM - master.sys.syslockinfo SLI - LEFT JOIN master.sys.databases DB ON DB.database_id = SLI.rsc_dbid - WHERE - @Exclude_Lock = 0 - AND SLI.req_spid = DXS.session_id - AND SLI.req_ecid = ISNULL (DOT.exec_context_id, 0) - FOR - XML PATH ('') - ,TYPE - ), N'') AS Lock_Details - ,(CASE - WHEN DXS.[lock_timeout] = -1 THEN N'Wait Forever' - WHEN DXS.[lock_timeout] = 0 THEN N'Immediately' - ELSE CONVERT (NVARCHAR (11), CONVERT (DECIMAL (18, 2), ROUND (DXS.[lock_timeout] / 1000.0, 2))) - END) AS Lock_Timeout_Seconds - ,(CASE - WHEN DXS.[deadlock_priority] <= -5 THEN N'Low' - WHEN DXS.[deadlock_priority] >= 5 THEN N'High' - ELSE N'Normal' - END) + N': ' + CONVERT (NVARCHAR (3), DXS.[deadlock_priority]) AS [Deadlock_Priority] - ,ISNULL (DXS.[host_name], N'') AS [Host_Name] - ,caCV.login_id AS Login_ID - ,(CASE - WHEN DXS.login_name = N'sa' THEN N'<< System Administrator >>' - ELSE DXS.login_name - END) AS Login_Name - ,ISNULL (REPLACE (REPLACE (DXS.[program_name], N'Microsoft® Windows® Operating System', N'Windows OS'), N'Microsoft', N'MS'), N'') AS Application_Description - ,ISNULL (CONVERT (NVARCHAR (11), NULLIF (DXS.prev_error, 0)) - + N': ' - + M.[text] - + N' (Severity ' - + CONVERT (NVARCHAR (3), M.severity) - + N', ' - + (CASE M.is_event_logged - WHEN 0 THEN N'Not Logged' - WHEN 1 THEN N'Logged' - END) - + N')', N'') AS Previous_Error - ,(CASE DXS.is_user_process - WHEN 1 THEN N'' - ELSE N'Yes' - END) AS System_Process - ,caCV.SPECID -FROM - master.sys.sysprocesses SP - INNER JOIN master.sys.dm_exec_sessions DXS ON DXS.session_id = SP.spid - LEFT JOIN master.sys.dm_exec_requests DER ON DER.session_id = DXS.session_id - LEFT JOIN master.sys.dm_os_tasks DOT ON DOT.session_id = DXS.session_id - AND ISNULL (DOT.exec_context_id, 0) = SP.ecid - LEFT JOIN master.sys.dm_exec_cached_plans DECP ON DECP.plan_handle = DER.plan_handle - LEFT JOIN master.sys.messages M ON M.message_id = DXS.prev_error - AND M.language_id = CONVERT (SMALLINT, SERVERPROPERTY (N'LCID')) - LEFT JOIN master.sys.databases DB ON DB.database_id = SP.[dbid] - CROSS APPLY - - ( - SELECT - CONVERT (NVARCHAR (6), DXS.session_id) + N'.' + CONVERT (NVARCHAR (11), ISNULL (DOT.exec_context_id, 0)) + N' ' + (CASE - WHEN DXS.session_id = @@SPID THEN N'••' - WHEN DXS.is_user_process = 0 THEN N'•' - ELSE N'' - END) AS SPECID - ,STUFF (( - SELECT - N', ' + CONVERT (NVARCHAR (MAX), XDER.session_id) AS [text()] - FROM - master.sys.dm_exec_requests XDER - WHERE - XDER.blocking_session_id <> 0 - AND XDER.blocking_session_id = DXS.session_id - ORDER BY - XDER.session_id - FOR - XML PATH ('') - ), 1, 2, N'') AS blocking - ,(CASE - WHEN DXS.[status] NOT IN (N'dormant', N'sleeping') THEN UPPER (DXS.[status]) - ELSE DXS.[status] - END) AS status_session - ,(CASE - WHEN DER.[status] <> N'sleeping' THEN UPPER (DER.[status]) - ELSE DER.[status] - END) AS status_request - ,(CASE - WHEN DOT.task_state <> N'sleeping' THEN UPPER (DOT.task_state) - ELSE DOT.task_state - END) AS status_task - ,ISNULL (NULLIF (DXS.nt_user_name, N''), DXS.login_name) AS login_id - ,ISNULL (DER.statement_start_offset, -1) AS statement_start_offset - ,ISNULL (DER.statement_end_offset, -1) AS statement_end_offset - ) caCV - - CROSS JOIN - - ( - SELECT - MAX (LEN (CONVERT (NVARCHAR (5), YDER.total_elapsed_time / 1000 / 86400))) AS total_elapsed_time_days_length_max - ,MAX (LEN (CONVERT (NVARCHAR (5), XSP.cpu / 1000 / 86400))) AS cpu_days_length_max - ,MAX (LEN (CONVERT (NVARCHAR (5), YDER.cpu_time / 1000 / 86400))) AS cpu_time_days_length_max - ,MAX (LEN (CONVERT (NVARCHAR (5), YDER.estimated_completion_time / 1000 / 86400))) AS estimated_completion_time_days_length_max - ,MAX (LEN (CONVERT (NVARCHAR (5), YDER.wait_time / 1000 / 86400))) AS wait_time_days_length_max - ,MAX (LEN (FLOOR ((FLOOR ((((CONVERT (DECIMAL (38, 20), GETDATE ()) - CONVERT (DECIMAL (38, 20), XDXS.login_time)) * 24) * 60) * 60)) / 86400))) AS login_time_days_length_max - ,MAX (LEN (FLOOR ((FLOOR ((((CONVERT (DECIMAL (38, 20), GETDATE ()) - CONVERT (DECIMAL (38, 20), XDXS.last_request_start_time)) * 24) * 60) * 60)) / 86400))) AS last_request_start_time_days_length_max - ,MAX (LEN (FLOOR ((FLOOR ((((CONVERT (DECIMAL (38, 20), GETDATE ()) - CONVERT (DECIMAL (38, 20), XDXS.last_request_end_time)) * 24) * 60) * 60)) / 86400))) AS last_request_end_time_days_length_max - FROM - master.sys.sysprocesses XSP - INNER JOIN master.sys.dm_exec_sessions XDXS ON XDXS.session_id = XSP.spid - LEFT JOIN master.sys.dm_exec_requests YDER ON YDER.session_id = XDXS.session_id - ) cjMAX - - OUTER APPLY master.sys.dm_exec_sql_text (CASE - WHEN @Exclude_SQL = 1 THEN NULL - ELSE SP.[sql_handle] - END) DEST - OUTER APPLY master.sys.dm_exec_query_plan (CASE - WHEN @Exclude_Plan = 1 THEN NULL - ELSE DER.plan_handle - END) DEQP - OUTER APPLY - - ( - SELECT - ISNULL ((CASE - WHEN DEST.[text] IS NULL THEN N'' - WHEN caCV.status_session = N'sleeping' AND caCV.status_request IS NULL AND caCV.status_task IS NULL THEN N'' - WHEN caCV.statement_start_offset < 1 AND caCV.statement_end_offset = -1 THEN N'<< Single Statement >>' - WHEN (DATALENGTH (DEST.[text]) - caCV.statement_start_offset) / 2 < 0 AND caCV.statement_end_offset = -1 THEN N'<< Derived Statement >>' - WHEN caCV.statement_end_offset = -1 THEN SUBSTRING (DEST.[text], (caCV.statement_start_offset / 2) + 1, ((DATALENGTH (DEST.[text]) - caCV.statement_start_offset) / 2) + 1) - ELSE SUBSTRING (DEST.[text], (caCV.statement_start_offset / 2) + 1, ((caCV.statement_end_offset - caCV.statement_start_offset) / 2) + 1) - END), N'') AS SQL_Statement_Current - ) oaSSC - - OUTER APPLY - - ( - SELECT - NULLIF (DER.total_elapsed_time, 0) / 1000 AS total_elapsed_time_seconds - ,NULLIF (SP.cpu, 0) / 1000 AS cpu_seconds - ,NULLIF (DER.cpu_time, 0) / 1000 AS cpu_time_seconds - ,NULLIF (DER.estimated_completion_time, 0) / 1000 AS estimated_completion_time_seconds - ,NULLIF (DER.wait_time, 0) / 1000 AS wait_time_seconds - ,FLOOR ((((CONVERT (DECIMAL (38, 20), GETDATE ()) - CONVERT (DECIMAL (38, 20), DXS.login_time)) * 24) * 60) * 60) AS login_time_seconds - ,FLOOR ((((CONVERT (DECIMAL (38, 20), GETDATE ()) - CONVERT (DECIMAL (38, 20), DXS.last_request_start_time)) * 24) * 60) * 60) AS last_request_start_time_seconds - ,FLOOR ((((CONVERT (DECIMAL (38, 20), GETDATE ()) - CONVERT (DECIMAL (38, 20), DXS.last_request_end_time)) * 24) * 60) * 60) AS last_request_end_time_seconds - ) oaSEC - - OUTER APPLY - - ( - SELECT - CONVERT (NVARCHAR (5), oaSEC.total_elapsed_time_seconds / 86400) AS total_elapsed_time_days - ,CONVERT (NCHAR (8), DATEADD (SECOND, oaSEC.total_elapsed_time_seconds % 86400, 0), 108) AS total_elapsed_time_hhmmss - ,CONVERT (NVARCHAR (5), oaSEC.cpu_seconds / 86400) AS cpu_days - ,CONVERT (NCHAR (8), DATEADD (SECOND, oaSEC.cpu_seconds % 86400, 0), 108) AS cpu_hhmmss - ,CONVERT (NVARCHAR (5), oaSEC.cpu_time_seconds / 86400) AS cpu_time_days - ,CONVERT (NCHAR (8), DATEADD (SECOND, oaSEC.cpu_time_seconds % 86400, 0), 108) AS cpu_time_hhmmss - ,CONVERT (NVARCHAR (5), oaSEC.estimated_completion_time_seconds / 86400) AS estimated_completion_time_days - ,CONVERT (NCHAR (8), DATEADD (SECOND, oaSEC.estimated_completion_time_seconds % 86400, 0), 108) AS estimated_completion_time_hhmmss - ,CONVERT (NVARCHAR (5), oaSEC.wait_time_seconds / 86400) AS wait_time_days - ,CONVERT (NCHAR (8), DATEADD (SECOND, oaSEC.wait_time_seconds % 86400, 0), 108) AS wait_time_hhmmss - ,CONVERT (NVARCHAR (7), FLOOR (oaSEC.login_time_seconds / 86400)) AS login_time_days - ,CONVERT (NCHAR (8), DATEADD (SECOND, oaSEC.login_time_seconds % 86400, 0), 108) AS login_time_hhmmss - ,CONVERT (NVARCHAR (7), FLOOR (oaSEC.last_request_start_time_seconds / 86400)) AS last_request_start_time_days - ,CONVERT (NCHAR (8), DATEADD (SECOND, oaSEC.last_request_start_time_seconds % 86400, 0), 108) AS last_request_start_time_hhmmss - ,CONVERT (NVARCHAR (7), FLOOR (oaSEC.last_request_end_time_seconds / 86400)) AS last_request_end_time_days - ,CONVERT (NCHAR (8), DATEADD (SECOND, oaSEC.last_request_end_time_seconds % 86400, 0), 108) AS last_request_end_time_hhmmss - ) oaDHMS - -WHERE - ( - ( - @Filter_Active = 0 - OR (CASE - WHEN @Filter_Sleeping = 0 AND SP.open_tran > 0 THEN N'' - ELSE caCV.status_session - END) NOT IN (N'dormant', N'sleeping') - ) - AND - ( - @Filter_Blocked = 0 - OR DER.blocking_session_id <> 0 - ) - AND - ( - @Filter_System = 0 - OR DXS.is_user_process = 1 - ) - AND - ( - @Database_Name IS NULL - OR ISNULL (DB.name, N'----------') = @Database_Name - ) - AND - ( - @Login IS NULL - OR caCV.login_id = @Login - ) - AND - ( - @SPID IS NULL - OR DXS.session_id = @SPID - ) - AND - ( - @SQL_Text IS NULL - OR DEST.[text] LIKE N'%' + REPLACE (REPLACE (REPLACE (@SQL_Text, N'[', N'[[]'), N'%', N'[%]'), N'_', N'[_]') + N'%' - ) - ) - OR - ( - caCV.blocking IS NOT NULL - OR NULLIF (DER.blocking_session_id, 0) IS NOT NULL - ) -ORDER BY - (CASE - WHEN caCV.blocking IS NOT NULL AND NULLIF (DER.blocking_session_id, 0) IS NULL THEN 10 - WHEN caCV.blocking IS NOT NULL AND NULLIF (DER.blocking_session_id, 0) IS NOT NULL THEN 20 - WHEN caCV.blocking IS NULL AND NULLIF (DER.blocking_session_id, 0) IS NOT NULL THEN 30 - WHEN DER.blocking_session_id = DXS.session_id THEN 40 - ELSE 999 - END) - ,DXS.session_id - ,DOT.exec_context_id -GO diff --git a/User_Defined_Function/dbo.udf_SeeAccessControlChanges.sql b/User_Defined_Function/dbo.udf_SeeAccessControlChanges.sql new file mode 100644 index 00000000..d66f0a38 --- /dev/null +++ b/User_Defined_Function/dbo.udf_SeeAccessControlChanges.sql @@ -0,0 +1,67 @@ +IF OBJECT_ID('dbo.udf_SeeAccessControlChanges') IS NULL + EXEC('CREATE FUNCTION dbo.udf_SeeAccessControlChanges() RETURNS TABLE WITH SCHEMABINDING AS RETURN SELECT 1 AS A;'); +GO + + +ALTER FUNCTION dbo.udf_SeeAccessControlChanges( + @Start DATETIME2,--the start of the period + @Finish DATETIME2--the end of the period + ) + RETURNS TABLE + --WITH ENCRYPTION|SCHEMABINDING, .. + AS +/** + Summary: > + This function gives you a list + of security events concerning users, roles and logins + from the default trace + Author: Phil Factor + Date: 2018-10-04 + Original link: https://www.red-gate.com/hub/product-learning/sql-monitor/monitoring-changes-permissions-users-roles-logins + Source link: https://github.com/ktaranov/sqlserver-kit/blob/master/User_Defined_Function/dbo.udf_SeeAccessControlChanges.sql + Modified: 2019-01-29 by Konstantin Taranov + Examples: + - SELECT * FROM dbo.udf_SeeAccessControlChanges(DateAdd(day, -1, SysDateTime()), SysDateTime()) + columns: datetime_local, action, data, hostname, ApplicationName, LoginName, traceName, spid, EventClass, objectName, rolename, TargetLoginName, category_id, ObjectType + Returns: > + datetime_local datetime2(7) + action nvarchar(816) + data ntext + hostname nvarchar(256) + ApplicationName nvarchar(256) + LoginName nvarchar(256) + traceName nvarchar(128) + spid int + EventClass int + objectName nvarchar(256) + rolename nvarchar(256) + TargetLoginName nvarchar(256) + category_id smallint + ObjectType nvarchar(128) +**/ + RETURN + ( + SELECT + CONVERT( + DATETIME2, + SWITCHOFFSET(CONVERT(datetimeoffset, StartTime), DATENAME(TzOffset, SYSDATETIMEOFFSET())) + ) AS datetime_local, 'User '+Coalesce( LoginName+ ' ','unknown ')+ + CASE EventSubClass --interpret the subclass for these traces + WHEN 1 THEN 'added ' WHEN 2 THEN 'dropped ' WHEN 3 THEN 'granted database access for ' + WHEN 4 THEN 'revoked database access from ' ELSE 'did something to ' END+ Coalesce(TargetLoginName,'') + + Coalesce( CASE EventSubclass WHEN 1 THEN ' to object ' ELSE ' from object ' end+objectname, '') AS action, + Coalesce(TextData,'') AS [data], hostname, ApplicationName, LoginName, TE.name AS traceName, spid, + EventClass, objectName, rolename, TargetLoginName, TE.category_id, + SysTSV.subclass_name AS ObjectType + FROM::fn_trace_gettable(--just use the latest trace + (SELECT TOP 1 traces.path FROM sys.traces + WHERE is_default = 1), DEFAULT) AS DT + LEFT OUTER JOIN sys.trace_events AS TE + ON DT.EventClass = TE.trace_event_id + LEFT OUTER JOIN sys.trace_subclass_values AS SysTSV + ON DT.EventClass = SysTSV.trace_event_id + AND DT.ObjectType = SysTSV.subclass_value + WHERE StartTime BETWEEN @Start AND @Finish + AND TargetLoginName IS NOT NULL + ); + GO diff --git a/User_Defined_Function/fn_recurringDates.sql b/User_Defined_Function/fn_recurringDates.sql new file mode 100644 index 00000000..c8cd2c45 --- /dev/null +++ b/User_Defined_Function/fn_recurringDates.sql @@ -0,0 +1,158 @@ +CREATE FUNCTION dbo.fn_recurringDates( + @wkDayPattern tinyint=127, --- 1=Mon, 2=Tue, 4=Wed, ... 127=All + @dayFrequency tinyint=1, --- 1=All, 2=every second, ... + @exactDay tinyint=NULL, --- Specific day number of the month + + @occurrenceNo tinyint=NULL, -- 1=First, 2=Second, ... 0=Last + @occurrenceType tinyint=NULL, -- ... of 1=Week, 2=Month, 3=Year + + @weekFrequency tinyint=1, --- 1=Every week, 2=Every second, etc + @exactWeek tinyint=NULL, -- Specific ISO week of the year + + @monPattern smallint=4095, -- 1=Jan, 2=Feb, 4=March, ... + @monFrequency tinyint=1, --- 1=Every month, 2=Every second... + + @yearFrequency tinyint=1, --- 1=Every year, 2=Every two... + + @start date, --- Start date of recurrence + @end date=NULL, --- End date of recurrence + @occurrences int=NULL --- Max number of occurrences +) +RETURNS @dates TABLE ( + [date] date NOT NULL, + PRIMARY KEY CLUSTERED ([date]) +) +AS + +BEGIN + --- Variable declarations: + DECLARE @occurrenceCount int=0, @year date=@start; + + --- Make sure the parameters are set correctly: + IF (@occurrences IS NULL AND @end IS NULL) RETURN; + IF (@occurrenceNo IS NOT NULL AND @occurrenceType IS NULL) + SET @occurrenceNo=NULL; + + --- This loop will start off with @year=@start and then + --- increase @year by one calendar year for every iteration: + WHILE (@occurrenceCount<@occurrences AND + DATEDIFF(yy, @start, @year)<@yearFrequency*@occurrences OR + @year<@end) BEGIN; + + --- Build a recursive common table expression that loops + --- through every date from @year and one year forward. + WITH dates ([date], occurrence) + AS ( + SELECT @year, 1 + UNION ALL + SELECT DATEADD(dd, 1, [date]), occurrence+1 + FROM dates + WHERE DATEADD(dd, 1, [date])0 AND + + --- Logical AND to filter specific months: + POWER(2, DATEPART(mm, [date])-1) + & @monPattern>0 AND + + --- Filter specific ISO week numbers: + (@exactWeek IS NULL OR + DATEPART(isoww, [date])=@exactWeek) AND + + --- Filter specific days of the month: + (@exactDay IS NULL OR + DATEPART(dd, [date])=@exactDay) + + ) AS sub + + WHERE + --- Modulo operator, to filter yearly frequencies: + sub.yearOrdinal%@yearFrequency=0 AND + + --- Modulo operator, to filter monthly frequencies: + sub.monOrdinal%@monFrequency=0 AND + + --- Modulo operator, to filter weekly frequencies: + sub.wkOrdinal%@weekFrequency=0 AND + + --- Modulo operator, to filter daily frequencies: + sub.dateOrdinal%@dayFrequency=0 AND + + --- Filter day ordinal: + (@occurrenceNo IS NULL OR + @occurrenceNo=sub.dateOrdinal OR + @occurrenceNo=0 AND sub.dateOrdinalDesc=1) AND + + --- ... and finally, stop if we reach @end: + sub.[date]<=ISNULL(@end, sub.[date]) + + --- The default is 100, so we'll get an error if we don't + --- explicitly allow for more recursions: + OPTION (MAXRECURSION 366); + + --- Add the number of dates that we've added to the + --- @dates table to our counter, @occurrenceCount. + --- Also, increase @year by one year. + SELECT + @occurrenceCount=@occurrenceCount+@@ROWCOUNT, + @year=DATEADD(yy, 1, @year); + END; + + RETURN; +END; + +GO diff --git a/User_Defined_Function/udf_2DateDiff.sql b/User_Defined_Function/udf_2DateDiff.sql new file mode 100644 index 00000000..9030da8a --- /dev/null +++ b/User_Defined_Function/udf_2DateDiff.sql @@ -0,0 +1,42 @@ +/*Author: Itzik Ben-Gan +Description: Compute Date and Time Difference in Parts +Solution to computing the difference between two date and time values in a combination of parts ranging from the year down to the nanosecond.*/ + +IF OBJECT_ID(N'dbo.DATEDIFFPARTS', N'IF') IS NOT NULL + DROP FUNCTION dbo.DATEDIFFPARTS; + GO + CREATE FUNCTION dbo.DATEDIFFPARTS(@dt1 AS DATETIME2, @dt2 AS DATETIME2) + RETURNS TABLE + AS + RETURN + SELECT + sgn, + yydiff - subyy AS yy, + (mmdiff - submm) % 12 AS mm, + DATEDIFF(day, DATEADD(mm, mmdiff - submm, dt1), dt2) - subdd AS dd, + nsdiff / CAST(3600000000000 AS BIGINT) AS hh, + nsdiff / CAST(60000000000 AS BIGINT) % 60 AS mi, + nsdiff / 1000000000 % 60 AS ss, + nsdiff % 1000000000 AS ns + FROM ( VALUES( CASE WHEN @dt1 > @dt2 THEN @dt2 ELSE @dt1 END, + CASE WHEN @dt1 > @dt2 THEN @dt1 ELSE @dt2 END, + CASE WHEN @dt1 < @dt2 THEN 1 + WHEN @dt1 = @dt2 THEN 0 + WHEN @dt1 > @dt2 THEN -1 END ) ) AS D(dt1, dt2, sgn) + CROSS APPLY ( VALUES( CAST(dt1 AS TIME), CAST(dt2 AS TIME), + DATEDIFF(yy, dt1, dt2), + DATEDIFF(mm, dt1, dt2), + DATEDIFF(dd, dt1, dt2) ) ) + AS A1(t1, t2, yydiff, mmdiff, dddiff) + CROSS APPLY ( VALUES + ( CASE WHEN DATEADD(yy, yydiff, dt1) > dt2 THEN 1 ELSE 0 END, + CASE WHEN DATEADD(mm, mmdiff, dt1) > dt2 THEN 1 ELSE 0 END, + CASE WHEN DATEADD(dd, dddiff, dt1) > dt2 THEN 1 ELSE 0 END ) ) + AS A2(subyy, submm, subdd) + CROSS APPLY ( VALUES( CAST(86400000000000 AS BIGINT) * subdd + + (CAST(1000000000 AS BIGINT) * DATEDIFF(ss, '00:00', t2) + + DATEPART(ns, t2)) + - (CAST(1000000000 AS BIGINT) * DATEDIFF(ss, '00:00', t1) + + DATEPART(ns, t1)) ) ) + AS A3(nsdiff); + GO \ No newline at end of file diff --git a/User_Defined_Function/udf_AlphaNumericOnly.sql b/User_Defined_Function/udf_AlphaNumericOnly.sql new file mode 100644 index 00000000..ec58b9c0 --- /dev/null +++ b/User_Defined_Function/udf_AlphaNumericOnly.sql @@ -0,0 +1,113 @@ +/* +Author: Alan Burstein +Original link: http://www.sqlservercentral.com/scripts/String+Function/141686 +*/ + +IF OBJECT_ID('dbo.udf_AlphaNumericOnly') IS NOT NULL DROP FUNCTION dbo.udf_AlphaNumericOnly; +GO +CREATE FUNCTION dbo.udf_AlphaNumericOnly (@pString varchar(8000)) +RETURNS TABLE WITH SCHEMABINDING AS RETURN +/**************************************************************************************** +Purpose: + Given a VARCHAR(8000) or less string, returns only the alphanumeric digits from the + string. + + +Compatibility: + SQL Server 2008+, Azure SQL Database, Azure SQL Data Warehouse & Parallel Data Warehouse + +Parameters: + @pString = varchar(8000); Input string to be cleaned + +Returns: + udf_AlphaNumericOnly - nvarchar(max) + +Syntax: +--===== Autonomous + SELECT ca.udf_AlphaNumericOnly + FROM dbo.udf_AlphaNumericOnly(@pString) ca; + +--===== CROSS APPLY example + SELECT ca.udf_AlphaNumericOnly + FROM dbo.SomeTable st + CROSS APPLY dbo.udf_AlphaNumericOnly(st.SomeVarcharCol) ca; + +Programmer's Notes: + 1. Based on Jeff Moden/Eirikur Eiriksson's DigitsOnlyEE function. For more details see: + http://www.sqlservercentral.com/Forums/Topic1585850-391-2.aspx#bm1629360 + + 2. This is an iTVF (Inline Table Valued Function) that performs the same task as a + scalar user defined function (UDF) accept that it requires the APPLY table operator. + Note the usage examples below and see this article for more details: + http://www.sqlservercentral.com/articles/T-SQL/91724/ + + The function will be slightly more complicated to use than a scalar UDF but will yeild + much better performance. For example - unlike a scalar UDF, this function does not + restrict the query optimizer's ability generate a parallel query plan. Initial testing + showed that the function generally gets a + + 3. udf_AlphaNumericOnly runs 2-4 times faster when using make_parallel() (provided that you + have two or more logical CPU's and MAXDOP is not set to 1 on your SQL Instance). + + 4. This is an iTVF (Inline Table Valued Function) that will be used as an iSF (Inline + Scalar Function) in that it returns a single value in the returned table and should + normally be used in the FROM clause as with any other iTVF. + + 5. CHECKSUM returns an INT and will return the exact number given if given an INT to + begin with. It's also faster than a CAST or CONVERT and is used as a performance + enhancer by changing the BIGINT of ROW_NUMBER() to a more appropriately sized INT. + + 6. Another performance enhancement is using a WHERE clause calculation to prevent + the relatively expensive XML PATH concatentation of empty strings normally + determined by a CASE statement in the XML "loop". + + 7. Note that udf_AlphaNumericOnly returns an nvarchar(max) value. If you are returning small + numbers consider casting or converting yout values to a numeric data type if you are + inserting the return value into a new table or using it for joins or comparison + purposes. + + 8. udf_AlphaNumericOnly is deterministic; for more about deterministic and nondeterministic + functions see https://msdn.microsoft.com/en-us/library/ms178091.aspx + +Usage Examples: +--===== 1. Basic use against a literal + + SELECT ao.udf_AlphaNumericOnly + FROM dbo.udf_AlphaNumericOnly('xxx123abc999!!!') ao; + +--===== 2. Against a table + DECLARE @sampleTxt TABLE (txtID int identity, txt varchar(100)); + INSERT @sampleTxt(txt) VALUES ('!!!A555A!!!'),(NULL),('AAA.999'); + + SELECT txtID, OldTxt = txt, udf_AlphaNumericOnly + FROM @sampleTxt st + CROSS APPLY dbo.udf_AlphaNumericOnly(st.txt); + +--------------------------------------------------------------------------------------- +Revision History: + Rev 00 - 20150526 - Inital Creation - Alan Burstein + Rev 00 - 20150526 - 3rd line in WHERE clause to correct something that was missed + - Eirikur Eiriksson +****************************************************************************************/ +WITH +E1(N) AS +( + SELECT N + FROM (VALUES (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL))X(N) +), +iTally(N) AS +( + SELECT TOP (LEN(ISNULL(@pString,CHAR(32)))) + (CHECKSUM(ROW_NUMBER() OVER (ORDER BY (SELECT NULL)))) + FROM E1 a CROSS JOIN E1 b CROSS JOIN E1 c CROSS JOIN E1 d +) +SELECT udf_AlphaNumericOnly = +( + SELECT SUBSTRING(@pString,N,1) + FROM iTally + WHERE + ((ASCII(SUBSTRING(@pString,N,1)) - 48) & 0x7FFF) < 10 + OR ((ASCII(SUBSTRING(@pString,N,1)) - 65) & 0x7FFF) < 26 + OR ((ASCII(SUBSTRING(@pString,N,1)) - 97) & 0x7FFF) < 26 + FOR XML PATH('') +); \ No newline at end of file diff --git a/User_Defined_Function/udf_AlphaOnly.sql b/User_Defined_Function/udf_AlphaOnly.sql new file mode 100644 index 00000000..b7b8363f --- /dev/null +++ b/User_Defined_Function/udf_AlphaOnly.sql @@ -0,0 +1,83 @@ +/* +Author: Alan Burstein +Original link: http://www.sqlservercentral.com/scripts/String+Function/141686 +*/ + + IF OBJECT_ID('dbo.udf_AlphaOnly') IS NOT NULL DROP FUNCTION dbo.udf_AlphaOnly; +GO +CREATE FUNCTION dbo.udf_AlphaOnly (@pString varchar(8000)) +RETURNS TABLE WITH SCHEMABINDING AS RETURN +/**************************************************************************************** +Purpose: + Given a VARCHAR(8000) or less string, returns only the alphabetical digits from the + input string (@pString). +Compatibility: + SQL Server 2008+, Azure SQL Database, Azure SQL Data Warehouse & Parallel Data Warehouse +Parameters: + @pString = varchar(8000); Input string to be cleaned +Returns: + udf_AlphaOnly - nvarchar(max) +Syntax: +--===== Autonomous + SELECT ca.udf_AlphaOnly + FROM dbo.udf_AlphaOnly(@pString) ca; +--===== CROSS APPLY example + SELECT ca.udf_AlphaOnly + FROM dbo.SomeTable st + CROSS APPLY dbo.udf_AlphaOnly(st.SomeVarcharCol) ca; +Programmer's Notes: + 1. Based on Jeff Moden/Eirikur Eiriksson's DigitsOnlyEE function. For more details see: + http://www.sqlservercentral.com/Forums/Topic1585850-391-2.aspx#bm1629360 + 2. This is an iTVF (Inline Table Valued Function) that performs the same task as a + scalar user defined function (UDF) accept that it requires the APPLY table operator. + Note the usage examples below and see this article for more details: + http://www.sqlservercentral.com/articles/T-SQL/91724/ + The function will be slightly more complicated to use than a scalar UDF but will yeild + much better performance. For example - unlike a scalar UDF, this function does not + restrict the query optimizer's ability generate a parallel query plan. Initial testing + showed that the function generally gets a + 3. udf_AlphaOnly runs 2-4 times faster when using make_parallel() (provided that you + have two or more logical CPU's and MAXDOP is not set to 1 on your SQL Instance). + 4. CHECKSUM returns an INT and will return the exact number given if given an INT to + begin with. It's also faster than a CAST or CONVERT and is used as a performance + enhancer by changing the BIGINT of ROW_NUMBER() to a more appropriately sized INT. + 5. Another performance enhancement is using a WHERE clause calculation to prevent + the relatively expensive XML PATH concatentation of empty strings normally + determined by a CASE statement in the XML "loop". + 6. Note that udf_AlphaOnly returns an nvarchar(max) value. If you are returning small + numbers consider casting or converting yout values to a numeric data type if you are + inserting the return value into a new table or using it for joins or comparison + purposes. + 8. udf_AlphaOnly is deterministic; for more about deterministic and nondeterministic + functions see https://msdn.microsoft.com/en-us/library/ms178091.aspx + +Usage Examples: +--===== 1. Basic use against a literal + SELECT ao.udf_AlphaOnly + FROM dbo.udf_AlphaOnly('xxx123abc999!!!') ao; +--===== 2. Against a table + DECLARE @sampleTxt TABLE (txtID int identity, txt varchar(100)); + INSERT @sampleTxt(txt) VALUES ('!!!A555A!!!'),(NULL),('AAA.999'); + SELECT txtID, OldTxt = txt, udf_AlphaOnly + FROM @sampleTxt st + CROSS APPLY dbo.udf_AlphaOnly(st.txt); +--------------------------------------------------------------------------------------- +Revision History: + Rev 00 - 20170411 - Inital Creation - Alan Burstein +****************************************************************************************/ +WITH +E1(N) AS (SELECT N FROM (VALUES ($),($),($),($),($),($),($),($),($),($)) x(n)), +iTally(N) AS +( + SELECT TOP (LEN(ISNULL(@pString,CHAR(32)))) + (CHECKSUM(ROW_NUMBER() OVER (ORDER BY (SELECT NULL)))) + FROM E1 a CROSS JOIN E1 b CROSS JOIN E1 c CROSS JOIN E1 d +) +SELECT udf_AlphaOnly = +( + SELECT SUBSTRING(@pString,N,1) + FROM iTally + WHERE ((ASCII(SUBSTRING(@pString,N,1)) - 65) & 0x7FFF) < 26 + OR ((ASCII(SUBSTRING(@pString,N,1)) - 97) & 0x7FFF) < 26 + FOR XML PATH('') +); \ No newline at end of file diff --git a/User_Defined_Function/udf_CalculateDistanceBetween2Coordinates.sql b/User_Defined_Function/udf_CalculateDistanceBetween2Coordinates.sql new file mode 100644 index 00000000..a0b07323 --- /dev/null +++ b/User_Defined_Function/udf_CalculateDistanceBetween2Coordinates.sql @@ -0,0 +1,61 @@ +IF OBJECT_ID('dbo.udf_CalculateDistanceBetween2Coordinates', 'FN') IS NULL +EXECUTE ('CREATE FUNCTION dbo.udf_CalculateDistanceBetween2Coordinates() RETURNS INT AS BEGIN RETURN 1 END;'); +GO + +CREATE FUNCTION dbo.udf_CalculateDistanceBetween2Coordinates +( + @Lat1 Float(18), + @Long1 Float(18), + @Lat2 Float(18), + @Long2 Float(18), + @ReturnType VarChar(10) +) + +Returns Float(18) + +AS +/* +Note + Author: Vignesh Arulmani + Original link: http://www.sqlservercentral.com/scripts/Calculate+Distance/118083/ +Examples + select dbo.udf_CalculateDistanceBetween2Coordinates('37.7749300 ','-122.4194200','34.0522222','-118.2427778','Miles'); + select dbo.udf_CalculateDistanceBetween2Coordinates('37.7749300 ','-122.4194200','34.0522222','-118.2427778','Kilometers'); + select dbo.udf_CalculateDistanceBetween2Coordinates('37.7749300 ','-122.4194200','34.0522222','-118.2427778','Meters'); + select dbo.udf_CalculateDistanceBetween2Coordinates('37.7749300 ','-122.4194200','34.0522222','-118.2427778','Feet'); +*/ +Begin + + Declare @R Float(8); + Declare @dLat Float(18); + Declare @dLon Float(18); + Declare @a Float(18); + Declare @c Float(18); + Declare @d Float(18); + + Set @R = + Case @ReturnType + When 'Miles' Then 3956.55 + When 'Kilometers' Then 6367.45 + When 'Feet' Then 20890584 + When 'Meters' Then 6367450 + Else 20890584 + End + + Set @dLat = Radians(@lat2 - @lat1); + + Set @dLon = Radians(@long2 - @long1); + + Set @a = Sin(@dLat / 2) + * Sin(@dLat / 2) + + Cos(Radians(@lat1)) + * Cos(Radians(@lat2)) + * Sin(@dLon / 2) + * Sin(@dLon / 2); + Set @c = 2 * Atn2(sqrt(@a),sqrt(1-@a)); + + Set @d = @R * @c; + Return @d; + +End; +Go diff --git a/User_Defined_Function/udf_CheckDynamicSQL.sql b/User_Defined_Function/udf_CheckDynamicSQL.sql new file mode 100644 index 00000000..a0b0d303 --- /dev/null +++ b/User_Defined_Function/udf_CheckDynamicSQL.sql @@ -0,0 +1,58 @@ +IF OBJECT_ID('dbo.udf_CheckDynamicSQL', 'FN') IS NULL +EXECUTE ('CREATE FUNCTION dbo.udf_CheckDynamicSQL() RETURNS INT AS BEGIN RETURN 1 END;'); +GO + +ALTER FUNCTION dbo.udf_CheckDynamicSQL( + @dynamicSQL NVARCHAR (MAX) +) +RETURNS NVARCHAR (2000) +AS +/* +.SYNOPSIS + Check Dynamic SQL Statement Syntax + +.DESCRIPTION + Check Dynamic SQL Statement Syntax first output result using sys.dm_exec_describe_first_result_set + https://docs.microsoft.com/en-us/sql/relational-databases/system-dynamic-management-views/sys-dm-exec-describe-first-result-set-transact-sql + +.PARAMETER @dynamicSQL + Dynamic SQL statement for checking + +.EXAMPLE + SELECT dbo.udf_CheckDynamicSQL('SELECT * , FROM sys.databases;'); + -- RETURN: Incorrect syntax near the keyword 'FROM'. + +.EXAMPLE + SELECT dbo.udf_CheckDynamicSQL('SELECT TOP(1) * FROM sys.databases;'); + --RETURN: OK + +.NOTE + Author: Eli Leiba + Source link: https://www.mssqltips.com/sqlservertip/4981/sql-server-function-to-check-dynamic-sql-syntax/ +*/ +BEGIN + DECLARE @Result NVARCHAR (2000); + + IF EXISTS ( + SELECT 1 + FROM sys.dm_exec_describe_first_result_set (@dynamicSQL, NULL, 0) + WHERE [error_message] IS NOT NULL + AND [error_number] IS NOT NULL + AND [error_severity] IS NOT NULL + AND [error_state] IS NOT NULL + AND [error_type] IS NOT NULL + AND [error_type_desc] IS NOT NULL + ) + BEGIN + SELECT @Result = [error_message] + FROM sys.dm_exec_describe_first_result_set(@dynamicSQL, NULL, 0) + WHERE column_ordinal = 0; + END + ELSE + BEGIN + SET @Result = 'OK' + END + + RETURN (@Result); +END +GO diff --git a/User_Defined_Function/udf_ConvertRangesInIntegerList.sql b/User_Defined_Function/udf_ConvertRangesInIntegerList.sql new file mode 100644 index 00000000..c1061430 --- /dev/null +++ b/User_Defined_Function/udf_ConvertRangesInIntegerList.sql @@ -0,0 +1,56 @@ +IF EXISTS(SELECT * FROM INFORMATION_SCHEMA.ROUTINES + WHERE ROUTINES.ROUTINE_NAME='ConvertRangesInIntegerList' + AND ROUTINES.ROUTINE_TYPE='function') +DROP FUNCTION dbo.ConvertRangesInIntegerList +go +CREATE FUNCTION ConvertRangesInIntegerList +( + -- the simple list. The list doesn't have to be in sorted order. + @list VARCHAR(MAX) --eg. 1,2,3,4,6,8,9,10,11,13,21,22,23,25,27,28,30 + --which would become 1-4,6,8-11,13,21-23,25,27,28,30 + --note that 27,28 are not converted to 27-28 because the range isn't sufficient +--SELECT dbo.ConvertRangesInIntegerList ('1,2,3,4,6,8,9,10,11,13,21,22,23,25,27,28,30') +) +RETURNS VARCHAR(MAX) +AS +BEGIN +DECLARE @Outputlist VARCHAR(MAX); +DECLARE @XMLVersionOfList XML; +DECLARE @MyNumbers TABLE + ( + Mynumber INT PRIMARY KEY, + Representation varchar(10), + Rangelength int +); +SELECT @XMLVersionOfList = '' + REPLACE(@list, ',', '') + ''; +--this will convert the list of numbers into XML and do some validity-checking. +DECLARE @PreviousValue INT, @RowRepresentation varchar(10), @RangeLength INT +SELECT @RangeLength=0; +--we put these in a table variable that has a primary key, ready for use +--you'd probably want a Try CATCH section here, but not is an example like this +INSERT INTO @MyNumbers(Mynumber) + SELECT DISTINCT x.y.value('.', 'int') AS IDs + FROM @XMLVersionOfList.nodes('/list/i/text()') AS x(y); +--now we update this quirkily to detect gaps in the sequence and represent islands +UPDATE @MyNumbers + SET + @RowRepresentation=[@MyNumbers].Representation= + CASE + WHEN [@MyNumbers].Mynumber=@PreviousValue+1 --next in the sequence? + THEN '' + WHEN @RowRepresentation='' AND @RangeLength>1--the previous row was in a sequence but this isn't + THEN '-'+CONVERT(varCHAR(5),@PreviousValue)+','+CONVERT(varCHAR(5),[@MyNumbers].Mynumber) + ELSE CASE WHEN @rangelength=1 + THEN ','+CONVERT(varCHAR(5),@PreviousValue) ELSE '' END + + ','+CONVERT(varCHAR(5),[@MyNumbers].Mynumber) END,--else it was not in a sequence + @RangeLength=[@MyNumbers].Rangelength= + CASE WHEN [@MyNumbers].Mynumber=@PreviousValue+1 THEN @RangeLength+1 ELSE 0 END, + @PreviousValue=[@MyNumbers].Mynumber --remember the value for the next row +SET @Outputlist='' --now join together all the representations +SELECT @Outputlist=@Outputlist+Representation FROM @MyNumbers +RETURN + STUFF(--trim the start and add the last entry if it ended with a sequence + @Outputlist+CASE WHEN @RowRepresentation='' THEN '-'+CONVERT(varCHAR(5),@PreviousValue) ELSE '' END, + 1,1,'') +END +GO \ No newline at end of file diff --git a/User_Defined_Function/udf_DamLev.sql b/User_Defined_Function/udf_DamLev.sql new file mode 100644 index 00000000..3bfbfb7d --- /dev/null +++ b/User_Defined_Function/udf_DamLev.sql @@ -0,0 +1,133 @@ +-- ============================================= +-- Computes and returns the Damerau-Levenshtein edit distance between two strings, +-- i.e. the number of insertion, deletion, substitution, and transposition edits +-- required to transform one string to the other. This value will be >= 0, where +-- 0 indicates identical strings. Comparisons use the case-sensitivity configured +-- in SQL Server (case-insensitive by default). This algorithm is basically the +-- Levenshtein algorithm with a modification that considers transposition of two +-- adjacent characters as a single edit. +-- http://blog.softwx.net/2015/01/optimizing-damerau-levenshtein_19.html +-- See http://en.wikipedia.org/wiki/Damerau%E2%80%93Levenshtein_distance +-- Note that this uses Sten Hjelmqvist's "Fast, memory efficient" algorithm, described +-- at http://www.codeproject.com/Articles/13525/Fast-memory-efficient-Levenshtein-algorithm. +-- This version differs by including some optimizations, and extending it to the Damerau- +-- Levenshtein algorithm. +-- Note that this is the simpler and faster optimal string alignment (aka restricted edit) distance +-- that difers slightly from the full Damerau-Levenshtein algorithm by imposing the restriction +-- that no substring is edited more than once. So for example, "CA" to "ABC" has an edit distance +-- of 2 by a complete application of Damerau-Levenshtein, but a distance of 3 by this method that +-- uses the optimal string alignment algorithm. See wikipedia article for more detail on this +-- distinction. +-- +-- @s - String being compared for distance. +-- @t - String being compared against other string. +-- @max - Maximum distance allowed, or NULL if no maximum is desired. Returns NULL if distance will exceed @max. +-- returns int edit distance, >= 0 representing the number of edits required to transform one string to the other. +-- ============================================= + +CREATE FUNCTION [dbo].[DamLev]( + + @s nvarchar(4000) + , @t nvarchar(4000) + , @max int +) +RETURNS int +WITH SCHEMABINDING +AS +BEGIN + DECLARE @distance int = 0 -- return variable + , @v0 nvarchar(4000)-- running scratchpad for storing computed distances + , @v2 nvarchar(4000)-- running scratchpad for storing previous column's computed distances + , @start int = 1 -- index (1 based) of first non-matching character between the two string + , @i int, @j int -- loop counters: i for s string and j for t string + , @diag int -- distance in cell diagonally above and left if we were using an m by n matrix + , @left int -- distance in cell to the left if we were using an m by n matrix + , @nextTransCost int-- transposition base cost for next iteration + , @thisTransCost int-- transposition base cost (2 distant along diagonal) for current iteration + , @sChar nchar -- character at index i from s string + , @tChar nchar -- character at index j from t string + , @thisJ int -- temporary storage of @j to allow SELECT combining + , @jOffset int -- offset used to calculate starting value for j loop + , @jEnd int -- ending value for j loop (stopping point for processing a column) + -- get input string lengths including any trailing spaces (which SQL Server would otherwise ignore) + , @sLen int = datalength(@s) / datalength(left(left(@s, 1) + '.', 1)) -- length of smaller string + , @tLen int = datalength(@t) / datalength(left(left(@t, 1) + '.', 1)) -- length of larger string + , @lenDiff int -- difference in length between the two strings + -- if strings of different lengths, ensure shorter string is in s. This can result in a little + -- faster speed by spending more time spinning just the inner loop during the main processing. + IF (@sLen > @tLen) BEGIN + SELECT @v0 = @s, @i = @sLen -- temporarily use v0 for swap + SELECT @s = @t, @sLen = @tLen + SELECT @t = @v0, @tLen = @i + END + SELECT @max = ISNULL(@max, @tLen) + , @lenDiff = @tLen - @sLen + IF @lenDiff > @max RETURN NULL + + -- suffix common to both strings can be ignored + WHILE(@sLen > 0 AND SUBSTRING(@s, @sLen, 1) = SUBSTRING(@t, @tLen, 1)) + SELECT @sLen = @sLen - 1, @tLen = @tLen - 1 + + IF (@sLen = 0) RETURN @tLen + + -- prefix common to both strings can be ignored + WHILE (@start < @sLen AND SUBSTRING(@s, @start, 1) = SUBSTRING(@t, @start, 1)) + SELECT @start = @start + 1 + IF (@start > 1) BEGIN + SELECT @sLen = @sLen - (@start - 1) + , @tLen = @tLen - (@start - 1) + + -- if all of shorter string matches prefix and/or suffix of longer string, then + -- edit distance is just the delete of additional characters present in longer string + IF (@sLen <= 0) RETURN @tLen + + SELECT @s = SUBSTRING(@s, @start, @sLen) + , @t = SUBSTRING(@t, @start, @tLen) + END + + -- initialize v0 array of distances + SELECT @v0 = '', @j = 1 + WHILE (@j <= @tLen) BEGIN + SELECT @v0 = @v0 + NCHAR(CASE WHEN @j > @max THEN @max ELSE @j END) + SELECT @j = @j + 1 + END + + SELECT @v2 = @v0 -- copy...doesn't matter what's in v2, just need to initialize its size + , @jOffset = @max - @lenDiff + , @i = 1 + WHILE (@i <= @sLen) BEGIN + SELECT @distance = @i + , @diag = @i - 1 + , @sChar = SUBSTRING(@s, @i, 1) + -- no need to look beyond window of upper left diagonal (@i) + @max cells + -- and the lower right diagonal (@i - @lenDiff) - @max cells + , @j = CASE WHEN @i <= @jOffset THEN 1 ELSE @i - @jOffset END + , @jEnd = CASE WHEN @i + @max >= @tLen THEN @tLen ELSE @i + @max END + , @thisTransCost = 0 + WHILE (@j <= @jEnd) BEGIN + -- at this point, @distance holds the previous value (the cell above if we were using an m by n matrix) + SELECT @nextTransCost = UNICODE(SUBSTRING(@v2, @j, 1)) + , @v2 = STUFF(@v2, @j, 1, NCHAR(@diag)) + , @tChar = SUBSTRING(@t, @j, 1) + , @left = UNICODE(SUBSTRING(@v0, @j, 1)) + , @thisJ = @j + SELECT @distance = CASE WHEN @diag < @left AND @diag < @distance THEN @diag --substitution + WHEN @left < @distance THEN @left -- insertion + ELSE @distance -- deletion + END + SELECT @distance = CASE WHEN (@sChar = @tChar) THEN @diag -- no change (characters match) + WHEN @i <> 1 AND @j <> 1 + AND @tChar = SUBSTRING(@s, @i - 1, 1) + AND @thisTransCost < @distance + AND @sChar = SUBSTRING(@t, @j - 1, 1) + THEN 1 + @thisTransCost -- transposition + ELSE 1 + @distance END + SELECT @v0 = STUFF(@v0, @thisJ, 1, NCHAR(@distance)) + , @diag = @left + , @thisTransCost = @nextTransCost + , @j = case when (@distance > @max) AND (@thisJ = @i + @lenDiff) then @jEnd + 2 else @thisJ + 1 end + END + SELECT @i = CASE WHEN @j > @jEnd + 1 THEN @sLen + 1 ELSE @i + 1 END + END + RETURN CASE WHEN @distance <= @max THEN @distance ELSE NULL END +END \ No newline at end of file diff --git a/User_Defined_Function/udf_DigitsOnlyEE.sql b/User_Defined_Function/udf_DigitsOnlyEE.sql new file mode 100644 index 00000000..1984cda3 --- /dev/null +++ b/User_Defined_Function/udf_DigitsOnlyEE.sql @@ -0,0 +1,123 @@ +/* +Author: Alan Burstein +Original link: http://www.sqlservercentral.com/scripts/String+Function/141686 +*/ + +IF OBJECT_ID('dbo.udf_DigitsOnlyEE') IS NOT NULL DROP FUNCTION dbo.udf_DigitsOnlyEE; +GO +CREATE FUNCTION dbo.udf_DigitsOnlyEE (@pString VARCHAR(8000)) +/**************************************************************************************** +Purpose: + Given a VARCHAR(8000) or less string, return only the numeric digits from the string. + +Compatibility: + SQL Server 2008+, Azure SQL Database, Azure SQL Data Warehouse & Parallel Data Warehouse + +Parameters: + @pString = varchar(8000); Input string to be cleaned + +Returns: + DigitsOnly = nvarchar(max) + +Syntax: +--===== Autonomous + SELECT ca.DigitsOnly + FROM dbo.DigitsOnly(@pString) ca; + +--===== CROSS APPLY example + SELECT ca.DigitsOnly + FROM dbo.SomeTable + CROSS APPLY dbo.DigitsOnly(SomeVarcharCol) ca + +Programmer's Notes: + 1. This is an iTVF (Inline Table Valued Function) that performs the same task as a + scalar user defined function (UDF) accept that it requires the APPLY table operator. + Note the usage examples below and See this article for more details: + http://www.sqlservercentral.com/articles/T-SQL/91724/ + + The function will be slightly more complicated to use than a scalar UDF but will yeild + much better performance. For example - unlike a scalar UDF, this function does not + restrict the query optimizer's ability generate a parallel query plan. Initial testing + showed that the function generally gets a + + 2. Runs 2-4 times faster with a parallel query plan. For optimal performance use Adam + Machanic's make_parallel() function (provided that you are on a machine with two or + more logical CPUs). make_parallel can be found here: + sqlblog.com/blogs/adam_machanic/archive/2013/07/11/next-level-parallel-plan-porcing.aspx + + 3. This is an iTVF (Inline Table Valued Function) that will be used as an iSF + (Inline Scalar Function) in that it returns a single value in the returned + table and should normally be used in the FROM clause as with any other iTVF. + + 4. CHECKSUM returns an INT and will return the exact number given if given an + INT to begin with. It's also faster than a CAST or CONVERT and is used as a + performance enhancer by changing the BIGINT of ROW_NUMBER() to a more + appropriately sized INT. + + 5. Another performance enhancement is using a WHERE clause calculation to prevent + the relatively expensive XML PATH concatentation of empty strings normally + determined by a CASE statement in the XML "loop". + + 6. Another performance enhancement is not making this function a generic function + that could handle a pattern. That allows us to use all integer math to do the + comparison using the high speed ASCII function convert characters to their numeric + equivalent. ASCII characters 48 through 57 are the digit characters of 0 through 9. + + 7. Keep in mind that udf_DigitsOnlyEE returns an nvarchar(max) value. If you are returning + small numbers consider casting or converting yout values to a numeric data type if + you are inserting the return value into a new table or using it for joins or comparison + purposes. + + 8. udf_DigitsOnlyEE is deterministic; for more about deterministic and nondeterministic + functions see https://msdn.microsoft.com/en-us/library/ms178091.aspx + +Kudos: + + 1. Hats off to Eirikur Eiriksson for the ASCII conversion idea and for the reminders + that dedicated functions will always be faster than generic functions and that + integer math beats the tar out of character comparisons that use LIKE or PATINDEX. + + 2. Hats off to all of the good people that submitted and tested their code on the + following thread. It's this type of participation and interest that makes code + better. You've just gotta love this commmunity. + http://www.sqlservercentral.com/Forums/Topic1585850-391-2.aspx#bm1629360 + +Usage Examples: +--===== 1. Basic use against a literal + SELECT DigitsOnly + FROM dbo.udf_DigitsOnlyEE('xxx123abc999!!!'); + +--===== 2. Against a table + DECLARE @sampleTxt TABLE (txtID int identity, txt varchar(100)); + INSERT @sampleTxt(txt) VALUES ('abc123'),('!!!555!!!'),('000.999'),(NULL); + + SELECT txtID, OldTxt = txt, DigitsOnly + FROM @sampleTxt st + CROSS APPLY dbo.udf_DigitsOnlyEE(st.txt); + +--------------------------------------------------------------------------------------- +Revision History: + Rev 00 - 20141029 - Initial Creation - Jeff Moden + Rev 01 - 20141210 - TOP clause changed to handle NULL inputs - Eirikur Eiriksson + Rev 02 - 20160512 - Substantial updates to the comments & examples - Alan Burstein +****************************************************************************************/ +RETURNS TABLE WITH SCHEMABINDING AS RETURN +WITH +E1(N) AS +( + SELECT N + FROM (VALUES (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL))X(N) +), +iTally(N) AS +( + SELECT TOP (LEN(ISNULL(@pString,CHAR(32)))) + (CHECKSUM(ROW_NUMBER() OVER (ORDER BY (SELECT NULL)))) + FROM E1 a CROSS JOIN E1 b CROSS JOIN E1 c CROSS JOIN E1 d +) +SELECT DigitsOnly = +( + SELECT SUBSTRING(@pString,N,1) + FROM iTally + WHERE ((ASCII(SUBSTRING(@pString,N,1)) - 48) & 0x7FFF) < 10 + FOR XML PATH('') +); \ No newline at end of file diff --git a/User_Defined_Function/udf_ForeignKeyScript.sql b/User_Defined_Function/udf_ForeignKeyScript.sql new file mode 100644 index 00000000..c7cef4f1 --- /dev/null +++ b/User_Defined_Function/udf_ForeignKeyScript.sql @@ -0,0 +1,104 @@ +/* +Author: Louis Davidson +Original link: http://sqlblog.com/blogs/louis_davidson/archive/2017/05/24/utility-to-script-a-foreign-key-constraint.aspx +*/ + + +CREATE FUNCTION udf_ForeignKeyScript( + @schema_name sysname, + @foreign_key_name sysname, + @constraint_status VARCHAR(20) = 'AS_WAS' --ENABLED, UNTRUSTED, DISABLED + --ANY OTHER VALUES RETURN NULL +) + +RETURNS NVARCHAR(MAX) +AS +BEGIN + --based on code to gen list of FK constraints from this article by Aaron Bertrand + --https://www.mssqltips.com/sqlservertip/3347/drop-and-recreate-all-foreign-key-constraints-in-sql-server/ + + --and code from John Paul Cook: + --https://social.technet.microsoft.com/wiki/contents/articles/2958.script-to-create-all-foreign-keys.aspx + + DECLARE @script NVARCHAR(MAX); + + IF @constraint_status NOT IN ('AS_WAS','ENABLED','UNTRUSTED','DISABLED') + RETURN NULL; + + SELECT @script + = N'ALTER TABLE ' + QUOTENAME(cs.name) + '.' + QUOTENAME(ct.name) + CHAR(13) + CHAR(10) + ' ' + --code added to set the constraint's status if it is not to be checked (and + --in the case of disabled, you create it not trusted and disable it + + CASE + WHEN(is_not_trusted = 1 + OR fk.is_disabled = 1 + OR @constraint_status IN ( 'UNTRUSTED', 'DISABLED' )) + --not forcing it to be enabled + AND @constraint_status <> 'ENABLED' THEN + 'WITH NOCHECK ' + ELSE + '' + END + + 'ADD CONSTRAINT ' + QUOTENAME(fk.name) + CHAR(13) + CHAR(10) + + ' FOREIGN KEY (' + + STUFF((SELECT ',' + QUOTENAME(c.name) + -- get all the columns in the constraint table + FROM sys.columns c + INNER JOIN sys.foreign_key_columns fkc + ON fkc.parent_column_id = c.column_id + AND fkc.parent_object_id = c.object_id + WHERE fkc.constraint_object_id = fk.object_id + ORDER BY fkc.constraint_column_id + FOR XML PATH(N''), TYPE).value(N'.[1]', N'nvarchar(max)'),1,1,N'') + + ')' + CHAR(13) + CHAR(10) + ' REFERENCES ' + QUOTENAME(rs.name) + '.' + QUOTENAME(rt.name) + + '(' + + STUFF((SELECT ',' + QUOTENAME(c.name) + -- get all the referenced columns + FROM sys.columns c + INNER JOIN sys.foreign_key_columns fkc + ON fkc.referenced_column_id = c.column_id + AND fkc.referenced_object_id = c.object_id + WHERE fkc.constraint_object_id = fk.object_id + ORDER BY fkc.constraint_column_id + FOR XML PATH(N''), TYPE).value(N'.[1]', N'nvarchar(max)'),1,1, N'') + + CASE fk.update_referential_action + WHEN 1 THEN CHAR(13) + CHAR(10) + ' ON UPDATE CASCADE ' + WHEN 2 THEN CHAR(13) + CHAR(10) + ' ON UPDATE SET NULL ' + WHEN 3 THEN CHAR(13) + CHAR(10) + ' ON UPDATE SET DEFAULT ' + ELSE '' --could also say "no action" which is the default + END + + CASE fk.delete_referential_action + WHEN 1 THEN CHAR(13) + CHAR(10) + ' ON DELETE CASCADE ' + WHEN 2 THEN CHAR(13) + CHAR(10) + ' ON DELETE SET NULL ' + WHEN 3 THEN CHAR(13) + CHAR(10) + ' ON DELETE SET DEFAULT ' + ELSE '' --could also say "no action" which is the default + END + + CASE fk.is_not_for_replication + WHEN 1 THEN CHAR(13) + CHAR(10) + ' NOT FOR REPLICATION ' + ELSE '' + END + + ');' + + CASE + WHEN(fk.is_disabled = 1 AND @constraint_status IN ( 'DISABLED', 'AS_WAS' )) + OR @constraint_status = 'DISABLED' + THEN CHAR(13) + CHAR(10)+ CHAR(13) + CHAR(10)+ 'ALTER TABLE ' + QUOTENAME(cs.name) + '.' + QUOTENAME(ct.name) + CHAR(13) + CHAR(10) + + ' NOCHECK CONSTRAINT ' + QUOTENAME(fk.name) + ';' + ELSE + '' + END + FROM sys.foreign_keys fk + INNER JOIN sys.tables rt + -- referenced table + ON fk.referenced_object_id = rt.object_id + INNER JOIN sys.schemas rs + ON rt.schema_id = rs.schema_id + INNER JOIN sys.tables ct + -- constraint table + ON fk.parent_object_id = ct.object_id + INNER JOIN sys.schemas cs + ON ct.schema_id = cs.schema_id + WHERE OBJECT_SCHEMA_NAME(fk.object_id) = @schema_name + AND fk.name = @foreign_key_name; + RETURN @script; +END; +GO diff --git a/User_Defined_Function/udf_FuzzySearchOf.sql b/User_Defined_Function/udf_FuzzySearchOf.sql new file mode 100644 index 00000000..740b4732 --- /dev/null +++ b/User_Defined_Function/udf_FuzzySearchOf.sql @@ -0,0 +1,67 @@ +IF OBJECT_ID (N'dbo.FuzzySearchOf') IS NOT NULL + DROP FUNCTION dbo.FuzzySearchOf + GO + CREATE FUNCTION dbo.FuzzySearchOf(@Searchterm VARCHAR(40)) + /** + summary: > + Returns all candidate words even if the input word is misspelt + Author: Phil Factor + Revision: 1.0 + date: 16/02/2017 + example: + Select * from dbo.FuzzySearchOf('sossyjez') + Select * from dbo.FuzzySearchOf('acheeve') + Select * from dbo.FuzzySearchOf('deevyate')--does a + returns: > + a table containing words + Dependency: + Words: A table of common words + DamLev http://blog.softwx.net/2015/01/optimizing-damerau-levenshtein_19.html + dbo.OneEditDifferenceTo(@word) + dbo.metaphone(@searchterm) + **/ + RETURNS @candidates TABLE(Candidate VARCHAR(40)) + AS + -- body of the function + BEGIN + DECLARE @Rowcount INT; + /* The first stage is to see if a word is an alias or a known misspelling.*/ + INSERT INTO @candidates (Candidate) + SELECT COALESCE(words.CanonicalVersion, words.word) FROM dbo.words + WHERE words.word = @Searchterm; + -- If not a known word or an alias, then has it an edit-distance of one to any canonical words + -- IN the 'Words' table + IF @@RowCount = 0 + BEGIN + INSERT INTO @candidates (Candidate) + SELECT OneEditDifferenceTo.Candidate FROM dbo.OneEditDifferenceTo(@Searchterm); + IF @@RowCount = 0 + BEGIN --If not then does it share a metaphone with any words in your table? + INSERT INTO @candidates (Candidate) + SELECT COALESCE(words.CanonicalVersion, words.word) AS candidate + FROM dbo.words WHERE words.Metaphone = dbo.Metaphone(@Searchterm); + SELECT @Rowcount = @@RowCount; + IF @Rowcount > 5 --If yes, and there are too many, then get what there are and + BEGIN --take the top few in ascending edit difference. + DELETE FROM @candidates; + INSERT INTO @candidates (Candidate) + SELECT TOP 5 COALESCE(words.CanonicalVersion, words.word) AS candidate + FROM dbo.words WHERE words.Metaphone = dbo.Metaphone(@Searchterm) + ORDER BY COALESCE(dbo.DamLev(words.word, @Searchterm, 3), 4); --just do three levels + END; + IF @Rowcount = 0 + BEGIN + /* Get a limited number of words with an edit distance of two, using Steve Hatchett’s + version of the Damerau-Levenshtein Algorithm, specifying that it abandons its work + on a particular word once it realises that it is more than two edit distances away*/ + INSERT INTO @candidates (Candidate) + SELECT TOP 5 words.word + FROM dbo.words WHERE words.CanonicalVersion IS NULL + AND word LIKE LEFT(@Searchterm,1)+'%' + AND COALESCE(dbo.DamLev(words.word, @Searchterm, 2), 3) < 3; + END; + END; + END; + RETURN; + END; + GO \ No newline at end of file diff --git a/User_Defined_Function/udf_GetNumsAB.sql b/User_Defined_Function/udf_GetNumsAB.sql index c2406c37..a2da8428 100644 --- a/User_Defined_Function/udf_GetNumsAB.sql +++ b/User_Defined_Function/udf_GetNumsAB.sql @@ -1,181 +1,181 @@ -IF OBJECT_ID('dbo.udf_GetNumsAB', 'IF') IS NULL -EXECUTE ('CREATE FUNCTION dbo.udf_GetNumsAB() RETURNS TABLE WITH SCHEMABINDING AS RETURN SELECT 1 AS A;'); -GO - - -ALTER FUNCTION dbo.udf_GetNumsAB( - @low bigint - , @high bigint - , @gap bigint - , @row1 bit -) -/**************************************************************************************** -Purpose: - Creates up to 100,544,625 sequential numbers beginning with @low and ending with @high. - Used to replace iterative methods such as loops, cursors and recursive CTEs to solve SQL - problems. Based on Itzik Ben-Gan's getnums function with some tweeks and enhancements - and added functionality. The logic for getting rn to begin at 0 or 1 is based comes from - Jeff Moden's fnTally function. - -Compatibility: - SQL Server 2008+ and Azure SQL Database - -Syntax: - SELECT rn, n1, n2 FROM dbo.udf_GetNumsAB(@low,@high,@gap,@row1); - -Parameters: - @low = a bigint that represents the lowest value for n1. - @high = a bigint that represents the highest value for n1. - @gap = a bigint that represents how much n1 and n2 will increase each row; @gap also - represents the difference between n1 and n2. - @row1 = a bit that represents the first value of rn. When @row = 0 then rn begins - at 0, when @row = 1 then rn will begin at 1. - -Return Types: - Inline Table Valued Function returns: - rn = bigint; a row number that works just like T-SQL ROW_NUMBER() except that it can - start at 0 or 1 which is dictated by @row1. - n1 = bigint; a sequential number starting at the value of @low and incrimentingby the - value of @gap until it is less than or equal to the value of @high. - n2 = bigint; a sequential number starting at the value of @low+@gap and incrimenting - by the value of @gap. - -Developer Notes: - 1. The lowest and highest possible numbers returned are whatever is allowable by a - bigint. The function, however, returns no more than 100,544,625 rows (465^3). - 2. @gap does not affect rn, rn will begin at @row1 and increase by 1 until the last row - unless its used in a query where a filter is applied to rn. - 3. @gap must be greater than 0 or the function will not return any rows. - 4. Keep in mind that when @row1 is 0 then the highest row-number will be the number of - rows returned minus 1 - 5. If you only need is a sequential set beginning at 0 or 1 then, for best performance - use the RN column. Use N1 and/or N2 when you need to begin your sequence at any - number other than 0 or 1 or if you need a gap between your sequence of numbers. - 6. Although @gap is a bigint it must be a positive integer or the function will - not return any rows. - 7. @high must be equal or higher than @low or the function won't return any rows. - 8. There is no performance penalty for sorting by rn ASC; there is a large performance - penalty for sorting in descending order. To sort in descending order, first make sure - that @gap = 1. Next create an alias column (called "n_desc" in the example below) and - use the formula: n_desc = ABS(rn-(@high+1)). The example below will return the numbers - 1 to 10 in descending order: - - DECLARE @low int = 1, @high int = 10, @gap int = 1, @row1 bit = 1; - - SELECT n_desc = ABS(rn-(@high+(@row1))) - FROM dbo.udf_GetNumsAB(@low,@high,1,@ro1) - ORDER BY rn; - -Examples: - ---===== 1. Using RN (rownumber) - -- (1.1) The best way to get the numbers 1,2,3...@high (e.g. 1 to 5): - SELECT RN FROM dbo.udf_GetNumsAB(1,5,1,1); - - -- (1.2) The best way to get the numbers 0,1,2...@high-1 (e.g. 0 to 5): - SELECT RN FROM dbo.udf_GetNumsAB(0,5,1,0); - ---===== 2. Using N1 - -- (2.1) To begin with numbers other than 0 or 1 use N1 (e.g. -3 to 3): - SELECT N1 FROM dbo.udf_GetNumsAB(-3,3,1,1); - - -- (2.2) ROW_NUMBER() is built in. If you want a ROW_NUMBER() include RN: - SELECT RN, N1 FROM dbo.udf_GetNumsAB(-3,3,1,1); - - -- (2.3) If you wanted a ROW_NUMBER() that started at 0 you would do this: - SELECT RN, N1 FROM dbo.udf_GetNumsAB(-3,3,1,0); - ---===== 3. Using N2 and @gap - -- (3.1) To get 0,10,20,30...100, set @low to 0, @high to 100 and @gap to 10: - SELECT N1 FROM dbo.udf_GetNumsAB(0,100,10,1); - - -- (3.2) Note that N2=N1+@gap; this allows you to create a sequence of ranges. - -- For example, to get (0,10),(10,20),(20,30).... (90,100): - SELECT N1, N2 FROM dbo.udf_GetNumsAB(0,90,10,1); - - -- (3.3) Remember that a rownumber is included and it can begin at 0 or 1: - SELECT RN, N1, N2 FROM dbo.udf_GetNumsAB(0,90,10,1); - ---===== (4) A real life example using RN, N1 and N2: - -- Beginning with @StartDate, to generate ranges of weeks that occur between - -- @startDate & @EndDate: - - DECLARE @StartDate datetime = '1/1/2015', @EndDate datetime = '2/28/2015'; - - SELECT - WeekNbr = 'Week #'+CAST(RN AS varchar(2)), - WeekStart = CONVERT(DATE, DATEADD(DAY,N1,@StartDate)), - WeekEnd = CONVERT(DATE, DATEADD(DAY,N2-1,@StartDate)) - FROM dbo.udf_GetNumsAB(0,datediff(DAY,@StartDate,@EndDate),7,1); - ---------------------------------------------------------------------------------------- -Revision History: - Rev 00 - 20140518 - Initial Development - Alan Burstein - Rev 01 - 20151029 - Added 65 rows to make L1=465; 465^3=100.5M. Updated comment section - - Alan Burstein -****************************************************************************************/ -RETURNS TABLE WITH SCHEMABINDING AS RETURN -WITH -L1(N) AS -( - SELECT 1 - FROM (VALUES - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), - (NULL),(NULL),(NULL)) t(N) -- 465 values -), -iTally AS -( - SELECT rn = 0 WHERE @row1 = 0 - UNION ALL - SELECT rn = ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) - FROM L1 a CROSS APPLY L1 b CROSS APPLY L1 c -) --Up to 100,544,625 numbers (select 465*465*465 = 100,544,625) -SELECT TOP (ABS((@high-@low)/ISNULL(NULLIF(@gap,0),1)+1)) - rn - , n1 = ((rn-( @row1 ))*@gap+@low) - , n2 = ((rn-(@row1-1))*@gap+@low) -FROM iTally -WHERE @high >= @low and @gap > 0 -ORDER BY rn; -GO +IF OBJECT_ID('dbo.udf_GetNumsAB', 'IF') IS NULL +EXECUTE ('CREATE FUNCTION dbo.udf_GetNumsAB() RETURNS TABLE WITH SCHEMABINDING AS RETURN SELECT 1 AS A;'); +GO + + +ALTER FUNCTION dbo.udf_GetNumsAB( + @low bigint + , @high bigint + , @gap bigint + , @row1 bit +) +/**************************************************************************************** +Purpose: + Creates up to 100,544,625 sequential numbers beginning with @low and ending with @high. + Used to replace iterative methods such as loops, cursors and recursive CTEs to solve SQL + problems. Based on Itzik Ben-Gan's getnums function with some tweeks and enhancements + and added functionality. The logic for getting rn to begin at 0 or 1 is based comes from + Jeff Moden's fnTally function. + +Compatibility: + SQL Server 2008+ and Azure SQL Database + +Syntax: + SELECT rn, n1, n2 FROM dbo.udf_GetNumsAB(@low,@high,@gap,@row1); + +Parameters: + @low = a bigint that represents the lowest value for n1. + @high = a bigint that represents the highest value for n1. + @gap = a bigint that represents how much n1 and n2 will increase each row; @gap also + represents the difference between n1 and n2. + @row1 = a bit that represents the first value of rn. When @row = 0 then rn begins + at 0, when @row = 1 then rn will begin at 1. + +Return Types: + Inline Table Valued Function returns: + rn = bigint; a row number that works just like T-SQL ROW_NUMBER() except that it can + start at 0 or 1 which is dictated by @row1. + n1 = bigint; a sequential number starting at the value of @low and incrimentingby the + value of @gap until it is less than or equal to the value of @high. + n2 = bigint; a sequential number starting at the value of @low+@gap and incrimenting + by the value of @gap. + +Developer Notes: + 1. The lowest and highest possible numbers returned are whatever is allowable by a + bigint. The function, however, returns no more than 100,544,625 rows (465^3). + 2. @gap does not affect rn, rn will begin at @row1 and increase by 1 until the last row + unless its used in a query where a filter is applied to rn. + 3. @gap must be greater than 0 or the function will not return any rows. + 4. Keep in mind that when @row1 is 0 then the highest row-number will be the number of + rows returned minus 1 + 5. If you only need is a sequential set beginning at 0 or 1 then, for best performance + use the RN column. Use N1 and/or N2 when you need to begin your sequence at any + number other than 0 or 1 or if you need a gap between your sequence of numbers. + 6. Although @gap is a bigint it must be a positive integer or the function will + not return any rows. + 7. @high must be equal or higher than @low or the function won't return any rows. + 8. There is no performance penalty for sorting by rn ASC; there is a large performance + penalty for sorting in descending order. To sort in descending order, first make sure + that @gap = 1. Next create an alias column (called "n_desc" in the example below) and + use the formula: n_desc = ABS(rn-(@high+1)). The example below will return the numbers + 1 to 10 in descending order: + + DECLARE @low int = 1, @high int = 10, @gap int = 1, @row1 bit = 1; + + SELECT n_desc = ABS(rn-(@high+(@row1))) + FROM dbo.udf_GetNumsAB(@low,@high,1,@ro1) + ORDER BY rn; + +Examples: + +--===== 1. Using RN (rownumber) + -- (1.1) The best way to get the numbers 1,2,3...@high (e.g. 1 to 5): + SELECT RN FROM dbo.udf_GetNumsAB(1,5,1,1); + + -- (1.2) The best way to get the numbers 0,1,2...@high-1 (e.g. 0 to 5): + SELECT RN FROM dbo.udf_GetNumsAB(0,5,1,0); + +--===== 2. Using N1 + -- (2.1) To begin with numbers other than 0 or 1 use N1 (e.g. -3 to 3): + SELECT N1 FROM dbo.udf_GetNumsAB(-3,3,1,1); + + -- (2.2) ROW_NUMBER() is built in. If you want a ROW_NUMBER() include RN: + SELECT RN, N1 FROM dbo.udf_GetNumsAB(-3,3,1,1); + + -- (2.3) If you wanted a ROW_NUMBER() that started at 0 you would do this: + SELECT RN, N1 FROM dbo.udf_GetNumsAB(-3,3,1,0); + +--===== 3. Using N2 and @gap + -- (3.1) To get 0,10,20,30...100, set @low to 0, @high to 100 and @gap to 10: + SELECT N1 FROM dbo.udf_GetNumsAB(0,100,10,1); + + -- (3.2) Note that N2=N1+@gap; this allows you to create a sequence of ranges. + -- For example, to get (0,10),(10,20),(20,30).... (90,100): + SELECT N1, N2 FROM dbo.udf_GetNumsAB(0,90,10,1); + + -- (3.3) Remember that a rownumber is included and it can begin at 0 or 1: + SELECT RN, N1, N2 FROM dbo.udf_GetNumsAB(0,90,10,1); + +--===== (4) A real life example using RN, N1 and N2: + -- Beginning with @StartDate, to generate ranges of weeks that occur between + -- @startDate & @EndDate: + + DECLARE @StartDate datetime = '1/1/2015', @EndDate datetime = '2/28/2015'; + + SELECT + WeekNbr = 'Week #'+CAST(RN AS varchar(2)), + WeekStart = CONVERT(DATE, DATEADD(DAY,N1,@StartDate)), + WeekEnd = CONVERT(DATE, DATEADD(DAY,N2-1,@StartDate)) + FROM dbo.udf_GetNumsAB(0,datediff(DAY,@StartDate,@EndDate),7,1); + +--------------------------------------------------------------------------------------- +Revision History: + Rev 00 - 20140518 - Initial Development - Alan Burstein + Rev 01 - 20151029 - Added 65 rows to make L1=465; 465^3=100.5M. Updated comment section + - Alan Burstein +****************************************************************************************/ +RETURNS TABLE WITH SCHEMABINDING AS RETURN +WITH +L1(N) AS +( + SELECT 1 + FROM (VALUES + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL), + (NULL),(NULL),(NULL)) t(N) -- 465 values +), +iTally AS +( + SELECT rn = 0 WHERE @row1 = 0 + UNION ALL + SELECT rn = ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) + FROM L1 a CROSS APPLY L1 b CROSS APPLY L1 c +) --Up to 100,544,625 numbers (select 465*465*465 = 100,544,625) +SELECT TOP (ABS((@high-@low)/ISNULL(NULLIF(@gap,0),1)+1)) + rn + , n1 = ((rn-( @row1 ))*@gap+@low) + , n2 = ((rn-(@row1-1))*@gap+@low) +FROM iTally +WHERE @high >= @low and @gap > 0 +ORDER BY rn; +GO diff --git a/User_Defined_Function/udf_GetResourceName.sql b/User_Defined_Function/udf_GetResourceName.sql new file mode 100644 index 00000000..f1596d23 --- /dev/null +++ b/User_Defined_Function/udf_GetResourceName.sql @@ -0,0 +1,156 @@ +IF EXISTS (SELECT * + FROM sys.objects + WHERE object_id = OBJECT_ID(N'[dbo].[udf_GetResourceName]') + AND type IN (N'FN', N'IF', N'TF', N'FS', N'FT')) +BEGIN + DROP FUNCTION [dbo].[udf_GetResourceName] +END; +GO + + +CREATE FUNCTION dbo.udf_GetResourceName( + @waitResource AS nvarchar(128) + , @paramName as sysname =NULL +) +RETURNS nvarchar(max) --we will return t-sql +AS +/* +Author: Darko Martinovic +Original link: http://www.sqlservercentral.com/scripts/T-SQL/153452/ +Description: Getting resource name from blocked process report +-- ============================================= +-- Get resource name from wait info +-- KEY: 6:72057594041991168 (ce52f92a058c) +-- OBJECT: 10:1730105204:0 databaseId + objectId + lockPartition +-- PAGE: 7:1:422000 databaseId + fileId + pageId +-- FILE: 8:0 +-- ============================================= +*/ +BEGIN + DECLARE @blockingType AS nvarchar(20); + --type of blockin KEY,OBJECT,PAGE + DECLARE @retValue AS nvarchar(max); + DECLARE @dbId bigint; + DECLARE @blockingKey AS nvarchar(256); + + SET @retValue = ''; + + SET @blockingType = RTRIM(SUBSTRING(@waitResource, 1, CHARINDEX(':', @waitResource) - 1)); + SET @blockingKey = SUBSTRING(@waitResource, CHARINDEX(':', @waitResource) + 1, LEN(@waitResource) - CHARINDEX(':', @waitResource)); + SET @dbId = SUBSTRING(@blockingKey, 1, CHARINDEX(':', @blockingKey) - 1); + + + IF @blockingType = 'KEY' + BEGIN + + DECLARE @hobId AS bigint; + SET @hobId = RTRIM(SUBSTRING(@blockingKey, CHARINDEX(':', @blockingKey) + 1, CHARINDEX('(', @blockingKey) - CHARINDEX(':', @blockingKey) - 1)); + + IF @paramName IS NOT NULL + BEGIN + SET @retValue = 'SET ' + @paramName + ' = ('; + END + SET @retValue = @retValue + + 'SELECT sc.name + ''.'' +so.name + ''('' + si.name + '')'' + FROM ' + DB_NAME(@dbId) + '.sys.partitions AS p + JOIN ' + DB_NAME(@dbId) + '.sys.objects AS so + ON p.object_id = so.object_id + JOIN ' + DB_NAME(@dbId) + '.sys.indexes AS si + ON p.index_id = si.index_id + AND p.object_id = si.object_id + JOIN ' + DB_NAME(@dbId) + '.sys.schemas AS sc + ON so.schema_id = sc.schema_id + WHERE p.hobt_id = ' + CAST(@hobId AS NVARCHAR(MAX)); + IF @paramName IS NOT NULL + BEGIN + SET @retValue = @retValue + ')' + END + END + ELSE + IF @blockingType = 'OBJECT' + BEGIN + DECLARE @pos AS INT; + DECLARE @helper AS NVARCHAR(50); + DECLARE @objectId AS BIGINT; + + SET @pos = CHARINDEX(':', @blockingKey) + 1; + SET @helper = SUBSTRING(@blockingKey, @pos, 100); + SET @objectId = SUBSTRING(@helper, 1, CHARINDEX(':', @helper) - 1); + --SET @retValue = N'USE ' + DB_NAME(@dbId) + CHAR(13) + CHAR(10); + SET @retValue = N''; + + IF @paramName IS NOT NULL + BEGIN + SET @retValue = 'SET ' + @paramName + ' = ('; + END + SET @retValue = @retValue + + 'SELECT TOP 1 s.name + ''.'' + o.name +FROM ' + DB_NAME(@dbid) +' .sys.objects o +INNER JOIN ' + DB_NAME(@dbid) + '.sys.partitions p + ON p.object_id = o.object_id +INNER JOIN ' + DB_NAME(@dbid) +'.sys.schemas s + ON s.schema_id = o.schema_id +WHERE p.OBJECT_ID = ' + CAST(@objectId AS NVARCHAR(MAX)); + IF @paramName IS NOT NULL + BEGIN + SET @retValue = @retValue + ')' + END + + END; + + ELSE + IF @blockingType = 'PAGE' + BEGIN + --PAGE 7:1:422000 + DECLARE @pos1 AS INT; + DECLARE @helper1 AS NVARCHAR(50); + DECLARE @fileId AS BIGINT; + DECLARE @pageId AS BIGINT; + + SET @pos1 = CHARINDEX(':', @blockingKey) + 1; + SET @helper1 = SUBSTRING(@blockingKey, @pos1, 100); + SET @fileId = SUBSTRING(@helper1, 1, CHARINDEX(':', @helper1) - 1); + SET @pageId = CAST(SUBSTRING(@helper1, CHARINDEX(':', @helper1) + 1, LEN(@helper1) - CHARINDEX(':', @helper1)) AS BIGINT) + SET @retValue = 'DECLARE @objectId as bigint + +IF OBJECT_ID(''tempdb..#pagedata'') IS NOT NULL +BEGIN +DROP TABLE #pagedata +END; + +CREATE TABLE #pagedata +( + ParentObject varchar(1000) NULL, Object varchar(4000) NULL, Field varchar(1000) NULL, ObjectValue varchar(max) NULL +); + + ' + + 'DBCC traceon (3604); ' + CHAR(13) + CHAR(10) + + 'SET NOCOUNT ON ;' + CHAR(13) + CHAR(10) + + 'INSERT INTO #pagedata( ParentObject, Object, Field, ObjectValue )' + CHAR(13) + CHAR(10) + + 'EXEC (''DBCC page (' + CAST(@dbId AS NVARCHAR(20)) + ', ' + CAST(@fileId AS NVARCHAR(10)) + ', ' + CAST(@pageId AS NVARCHAR(MAX)) + ') WITH TABLERESULTS '') +SELECT @objectId=objectvalue +FROM #pagedata +WHERE field LIKE ''Metadata: ObjectId%'';' + + IF @paramName IS NOT NULL + BEGIN + SET @retValue = @retValue + 'SET ' + @paramName + ' = ('; + END + + SET @retValue = @retValue + 'SELECT TOP 1 s.name + ''.'' + o.name +FROM ' + DB_NAME(@dbid) +' .sys.objects o +INNER JOIN ' + DB_NAME(@dbid) + '.sys.partitions p + ON p.object_id = o.object_id +INNER JOIN ' + DB_NAME(@dbid) +'.sys.schemas s + ON s.schema_id = o.schema_id +WHERE p.OBJECT_ID = @objectId '; + IF @paramName IS NOT NULL + BEGIN + SET @retValue = @retValue + ')' + END + + END; + + RETURN @retvalue; +END; +GO diff --git a/User_Defined_Function/udf_INSTR.sql b/User_Defined_Function/udf_INSTR.sql new file mode 100644 index 00000000..f76064ee --- /dev/null +++ b/User_Defined_Function/udf_INSTR.sql @@ -0,0 +1,47 @@ +IF OBJECT_ID('dbo.udf_INSTR', 'IF') IS NULL +EXECUTE ('CREATE FUNCTION dbo.udf_INSTR() RETURNS TABLE AS RETURN SELECT 1 AS A;'); +GO + + +ALTER FUNCTION dbo.udf_INSTR( + @str NVARCHAR(4000), + @substr NVARCHAR(4000), + @start INT, + @Occurance INT +) +RETURNS TABLE +AS +/* +Note + Author: Hannan Kravitz + Original link: http://www.sqlservercentral.com/scripts/SUBSTRING/148570/ + Modified Date: 2016-11-17 +Example: + SELECT Loc FROM dbo.udf_INSTR ('Hello World', 'l', 1, 1) -- return 3 + SELECT Loc FROM dbo.udf_INSTR ('Hello World', 'l', 1, 3) -- return 10 + SELECT Loc FROM dbo.udf_INSTR ('Hello World', 'l', 1, 4) -- return NULL + SELECT Loc FROM dbo.udf_INSTR ('Ёжик - это моё имя','ё', 1, 1) -- return 14 +*/ +RETURN + WITH Tally(N) AS + ( + SELECT TOP (LEN(@str)) ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) + FROM (VALUES (0),(0),(0),(0),(0),(0),(0),(0)) a(N) + CROSS JOIN (VALUES(0),(0),(0),(0),(0),(0),(0),(0),(0),(0)) b(N) + CROSS JOIN (VALUES(0),(0),(0),(0),(0),(0),(0),(0),(0),(0)) c(N) + CROSS JOIN (VALUES(0),(0),(0),(0),(0),(0),(0),(0),(0),(0)) d(N) + ) +, Find_N_STR AS + ( + SELECT + CASE WHEN DENSE_RANK() OVER(PARTITION BY @substr ORDER BY (CHARINDEX(@substr, @str, N))) = @Occurance + THEN MAX(N - @start + 1) OVER (PARTITION BY CHARINDEX(@substr, @str, N)) + ELSE 0 + END [Loc] + FROM Tally + WHERE CHARINDEX(@substr, @str, N) > 0 + ) + SELECT Loc= MAX(Loc) + FROM Find_N_STR + WHERE Loc > 0; +GO diff --git a/User_Defined_Function/udf_IntegerListFromRangesFunction.sql b/User_Defined_Function/udf_IntegerListFromRangesFunction.sql new file mode 100644 index 00000000..3718ede1 --- /dev/null +++ b/User_Defined_Function/udf_IntegerListFromRangesFunction.sql @@ -0,0 +1,76 @@ +IF EXISTS + ( + SELECT * + FROM INFORMATION_SCHEMA.ROUTINES + WHERE ROUTINES.ROUTINE_NAME = 'IntegerListfromRangesFunction' + AND ROUTINES.ROUTINE_TYPE = 'function' + ) +DROP FUNCTION dbo.IntegerListfromRangesFunction; +GO +CREATE FUNCTION IntegerListfromRangesFunction + ( + /** +summary: > + This Procedure takes a list of integers with ranges in them and turns it into + a list of integers. Effectively, it removes the ranges by turning them into all + the integers in the range. This uses the iterative solution without an intermediary + table +Author: Phil Factor +Revision: 1.0 +date: 20 Nov 2016 +example: > +-eg. SELECT dbo.IntegerListfromRangesFunction('1-4,6,8-11,13,21-23,25,27-28,30') + --which would become 1,2,3,4,6,8,9,10,11,13,21,22,23,25,27,28,30 +returns: > + The list as an ascll string representing a list of integers. +**/ + @list VARCHAR(MAX) --eg. 1-4,6,8-11,13,21-23,25,27-28,30 + ) +RETURNS VARCHAR(MAX) +AS + BEGIN + DECLARE @c CHAR, --the current character being examined + @ii INT, --the iteration count + @len INT, --length of the list + @negative BIT, --is this a negative number, + @Accumulator INT, --the value of the number so far + @ThereIsAnRvalue INT, --Is there an Rvalue in the accumulator + @previous CHAR, --the previous character examined + @lvalue INT, --left hand side value of ecxpression, + @OutputList VARCHAR(MAX); -- the output list + --so initialise everything + SELECT @list = @list + ',', @ii = 1, @len = LEN(@list), @negative = 0, + @Accumulator = 0, @previous = ',', @lvalue = 0, @OutputList = '', + @ThereIsAnRvalue = 0; + WHILE(@ii <= @len) --from the start to end of the list + BEGIN + SELECT @c = SUBSTRING(@list, @ii, 1); --get the next character + IF @c = '-' AND @previous LIKE '[0-9]' --is it the range keyword + SELECT @lvalue = --if it is, then save the lvalue + CASE WHEN @negative = 1 THEN -@Accumulator ELSE @Accumulator END, + @ThereIsAnRvalue = 1, @Accumulator = 0, @negative = 0; + ELSE IF @c = '-' --it IS a negative number following + SELECT @negative = 1; + ELSE IF @c LIKE '[0-9]' --it is a number + SELECT @Accumulator = (@Accumulator * 10) + @c; + ELSE IF(@c = ',') --it is the end of the current list entry + BEGIN + SELECT @Accumulator = + CASE WHEN @negative = 1 THEN -@Accumulator ELSE @Accumulator END; + IF @ThereIsAnRvalue = 1 + WHILE(@lvalue <= @Accumulator) + BEGIN + SELECT @OutputList = + @OutputList + ',' + CONVERT(VARCHAR(5), @lvalue); + SELECT @lvalue = @lvalue + 1; + END; + ELSE + SELECT @OutputList = + @OutputList + ',' + CONVERT(VARCHAR(5), @Accumulator); + SELECT @Accumulator = 0, @negative = 0, @lvalue = 0, + @ThereIsAnRvalue = 0; + END; + SELECT @ii = @ii + 1, @previous = @c; + END; + RETURN STUFF(@OutputList, 1, 1, ''); + END; \ No newline at end of file diff --git a/User_Defined_Function/udf_JSONHierarchy.sql b/User_Defined_Function/udf_JSONHierarchy.sql new file mode 100644 index 00000000..db795bde --- /dev/null +++ b/User_Defined_Function/udf_JSONHierarchy.sql @@ -0,0 +1,142 @@ +IF (SELECT Compatibility_level FROM sys.databases WHERE name LIKE Db_Name())<130 + ALTER DATABASE MyDatabase SET COMPATIBILITY_LEVEL = 130; + +IF EXISTS (SELECT * FROM sys.types WHERE name LIKE 'Hierarchy') +SET NOEXEC On; +GO +CREATE TYPE dbo.Hierarchy AS TABLE +/*Markup languages such as JSON and XML all represent object data as hierarchies. Although it looks very different to the entity-relational model, it isn't. It is rather more a different perspective on the same model. The first trick is to represent it as a Adjacency list hierarchy in a table, and then use the contents of this table to update the database. This Adjacency list is really the Database equivalent of any of the nested data structures that are used for the interchange of serialized information with the application, and can be used to create XML, OSX Property lists, Python nested structures or YAML as easily as JSON. +Adjacency list tables have the same structure whatever the data in them. This means that you can define a single Table-Valued Type and pass data structures around between stored procedures. However, they are best held at arms-length from the data, since they are not relational tables, but something more like the dreaded EAV (Entity-Attribute-Value) tables. Converting the data from its Hierarchical table form will be different for each application, but is easy with a CTE. You can, alternatively, convert the hierarchical table into XML and interrogate that with XQuery +*/ +( + element_id INT primary key, /* internal surrogate primary key gives the order of parsing and the list order */ + sequenceNo [int] NULL, /* the place in the sequence for the element */ + parent_ID INT,/* if the element has a parent then it is in this column. The document is the ultimate parent, so you can get the structure from recursing from the document */ + Object_ID INT,/* each list or object has an object id. This ties all elements to a parent. Lists are treated as objects here */ + NAME NVARCHAR(2000),/* the name of the object, null if it hasn't got one */ + StringValue NVARCHAR(MAX) NOT NULL,/*the string representation of the value of the element. */ + ValueType VARCHAR(10) NOT null /* the declared type of the value represented as a string in StringValue*/ +) +GO +SET NOEXEC OFF +GO + +IF Object_Id('dbo.udf_JSONHierarchy', 'TF') IS NOT NULL + CREATE FUNCTION dbo.udf_JSONHierarchy +GO + +ALTER FUNCTION dbo.udf_JSONHierarchy + ( + @JSONData VARCHAR(MAX), + @Parent_object_ID INT = NULL, + @MaxObject_id INT = 0, + @type INT = null + ) +/* +Author: Phil Factor +Source link: https://www.red-gate.com/simple-talk/blogs/consuming-hierarchical-json-documents-sql-server-using-openjson/ +Description: Consuming hierarchical JSON documents in SQL Server using OpenJSON + +SELECT * FROM dbo.JSONHierarchy('{ "Person": + { + "firstName": "John", + "lastName": "Smith", + "age": 25, + "Address": + { + "streetAddress":"21 2nd Street", + "city":"New York", + "state":"NY", + "postalCode":"10021" + }, + "PhoneNumbers": + { + "home":"212 555-1234", + "fax":"646 555-4567" + } + } + }' + ,DEFAULT,DEFAULT,DEFAULT) +*/ +RETURNS @ReturnTable TABLE + ( + Element_ID INT IDENTITY(1, 1) PRIMARY KEY, /* internal surrogate primary key gives the order of parsing and the list order */ + SequenceNo INT NULL, /* the sequence number in a list */ + Parent_ID INT, /* if the element has a parent then it is in this column. The document is the ultimate parent, so you can get the structure from recursing from the document */ + Object_ID INT, /* each list or object has an object id. This ties all elements to a parent. Lists are treated as objects here */ + Name NVARCHAR(2000), /* the name of the object */ + StringValue NVARCHAR(MAX) NOT NULL, /*the string representation of the value of the element. */ + ValueType VARCHAR(10) NOT NULL /* the declared type of the value represented as a string in StringValue*/ + ) +AS + BEGIN + --the types of JSON + DECLARE @null INT = + 0, @string INT = 1, @int INT = 2, @boolean INT = 3, @array INT = 4, @object INT = 5; + + DECLARE @OpenJSONData TABLE + ( + sequence INT IDENTITY(1, 1), + [key] VARCHAR(200), + Value VARCHAR(MAX), + type INT + ); + + DECLARE @key VARCHAR(200), @Value VARCHAR(MAX), @Thetype INT, @ii INT, @iiMax INT, + @NewObject INT, @firstchar CHAR(1); + + INSERT INTO @OpenJSONData + ([key], Value, type) + SELECT [Key], Value, Type FROM OpenJson(@JSONData); + SELECT @ii = 1, @iiMax = Scope_Identity() + SELECT @Firstchar= --the first character to see if it is an object or an array + Substring(@JSONData,PatIndex('%[^'+CHAR(0)+'- '+CHAR(160)+']%',' '+@JSONData+'!' collate SQL_Latin1_General_CP850_Bin)-1,1) + IF @type IS NULL AND @firstchar IN ('[','{') + begin + INSERT INTO @returnTable + (SequenceNo,Parent_ID,Object_ID,Name,StringValue,ValueType) + SELECT 1,NULL,1,'-','', + CASE @firstchar WHEN '[' THEN 'array' ELSE 'object' END + SELECT @type=CASE @firstchar WHEN '[' THEN @array ELSE @object END, + @Parent_object_ID = 1, @MaxObject_id=Coalesce(@MaxObject_id, 1) + 1; + END + WHILE(@ii <= @iiMax) + BEGIN + --OpenJSON renames list items with 0-nn which confuses the consumers of the table + SELECT @key = CASE WHEN [key] LIKE '[0-9]%' THEN NULL ELSE [key] end , @Value = Value, @Thetype = type + FROM @OpenJSONData + WHERE sequence = @ii; + + IF @Thetype IN (@array, @object) --if we have been returned an array or object + BEGIN + SELECT @MaxObject_id = Coalesce(@MaxObject_id, 1) + 1; + --just in case we have an object or array returned + INSERT INTO @ReturnTable --record the object itself + (SequenceNo, Parent_ID, Object_ID, Name, StringValue, ValueType) + SELECT @ii, @Parent_object_ID, @MaxObject_id, @key, '', + CASE @Thetype WHEN @array THEN 'array' ELSE 'object' END; + + INSERT INTO @ReturnTable --and return all its children + (SequenceNo, Parent_ID, Object_ID, [Name], StringValue, ValueType) + SELECT SequenceNo, Parent_ID, Object_ID, + [Name], + StringValue, + ValueType + FROM dbo.udf_JSONHierarchy(@Value, @MaxObject_id, @MaxObject_id, @type); + SELECT @MaxObject_id=Max(Object_id)+1 FROM @ReturnTable + END; + ELSE + INSERT INTO @ReturnTable + (SequenceNo, Parent_ID, Object_ID, Name, StringValue, ValueType) + SELECT @ii, @Parent_object_ID, NULL, @key, @Value, + CASE @Thetype WHEN @string THEN 'string' + WHEN @null THEN 'null' + WHEN @int THEN 'int' + WHEN @boolean THEN 'boolean' ELSE 'int' END; + + SELECT @ii = @ii + 1; + END; + + RETURN; + END; +GO diff --git a/User_Defined_Function/udf_ParseFilePath.sql b/User_Defined_Function/udf_ParseFilePath.sql new file mode 100644 index 00000000..e131fe05 --- /dev/null +++ b/User_Defined_Function/udf_ParseFilePath.sql @@ -0,0 +1,46 @@ +IF NOT EXISTS (SELECT * FROM sys.objects WHERE type = 'IF' AND object_id = object_id('dbo.udf_ParseFilePath')) + EXEC ('CREATE FUNCTION dbo.udf_ParseFilePath() RETURNS TABLE AS RETURN SELECT Result = ''This is a stub'';' ) +GO + + +ALTER FUNCTION dbo.udf_ParseFilePath (@FilePath nvarchar(300)) +RETURNS TABLE +/************************************************************************************************* +https://github.com/amtwo/dba-database/blob/master/functions-tvfs/dbo.ParseFilePath.sql +AUTHOR: Andy Mallon +CREATED: 20180114 + Parses a full file path into separate file & path values. + Also include the bare file name & file extension, because why not? +PARAMETERS: + @FilePath - Text string of a complete file & path +EXAMPLES: +* +************************************************************************************************** +MODIFICATIONS: + 20160218 - +************************************************************************************************** + This code is free to download and use for personal, educational, and internal + corporate purposes, provided that this header is preserved. Redistribution or sale, + in whole or in part, is prohibited without the author's express written consent. + ©2014-2018 ● Andy Mallon ● am2.co +*************************************************************************************************/ +AS +RETURN + WITH ParseInfo AS( + SELECT FilePath = @FilePath, + PathLen = LEN(@FilePath), + FinalSlashPos = CHARINDEX('\', REVERSE(@FilePath), 1) + ), + ParsedPaths AS ( + SELECT DirectoryPath = LEFT (FilePath, PathLen - FinalSlashPos + 1), + FullFileName = RIGHT(FilePath, FinalSlashPos - 1), + FileExtension = RIGHT(FilePath, CHARINDEX('.', REVERSE(FilePath)) -1), + * + FROM ParseInfo + ) + SELECT DirectoryPath, + FullFileName, + BareFilename = LEFT(FullFilename,LEN(FullFilename)-(LEN(FileExtension)+1)), + FileExtension + FROM ParsedPaths; +GO diff --git a/User_Defined_Function/udf_PatExclude8K.sql b/User_Defined_Function/udf_PatExclude8K.sql index 1781b3af..90edc16d 100644 --- a/User_Defined_Function/udf_PatExclude8K.sql +++ b/User_Defined_Function/udf_PatExclude8K.sql @@ -1,71 +1,71 @@ -IF OBJECT_ID('dbo.udf_PatExclude8K', 'IF') IS NULL -EXECUTE ('CREATE FUNCTION dbo.udf_PatExclude8K() RETURNS TABLE WITH SCHEMABINDING AS RETURN SELECT 1 AS A;'); -GO - - -ALTER FUNCTION dbo.udf_PatExclude8K( - @String VARCHAR(8000) - , @Pattern VARCHAR(50) -) -/******************************************************************************* - Purpose: - Given a string (@String) and a pattern (@Pattern) of characters to remove, - remove the patterned characters from the string. - -Usage: ---===== Basic Syntax Example - SELECT CleanedString - FROM dbo.udf_PatExclude8K(@String, @Pattern); - ---===== Remove all but Alpha characters - SELECT CleanedString - FROM dbo.SomeTable st - CROSS APPLY dbo.udf_PatExclude8K(st.SomeString,'%[^A-Za-z]%'); - ---===== Remove all but Numeric digits - SELECT CleanedString - FROM dbo.SomeTable st - CROSS APPLY dbo.udf_PatExclude8K(st.SomeString,'%[^0-9]%'); - - Programmer Notes: - 1. @Pattern is not case sensitive (the function can be easily modified to make it so) - 2. There is no need to include the "%" before and/or after your pattern since since we - are evaluating each character individually - - Revision History: - Rev 00 - 10/27/2014 Initial Development - Alan Burstein - - Rev 01 - 10/29/2014 Mar 2007 - Alan Burstein - - Redesigned based on the dbo.STRIP_NUM_EE by Eirikur Eiriksson - (see: http://www.sqlservercentral.com/Forums/Topic1585850-391-2.aspx) - - change how the cte tally table is created - - put the include/exclude logic in a CASE statement instead of a WHERE clause - - Added Latin1_General_BIN Colation - - Add code to use the pattern as a parameter. - - Rev 02 - 11/6/2014 - - Added final performane enhancement (more cudo's to Eirikur Eiriksson) - - Put 0 = PATINDEX filter logic into the WHERE clause - -Rev 03 - 5/16/2015 - - Updated code to deal with special XML characters -*******************************************************************************/ -RETURNS TABLE WITH SCHEMABINDING AS -RETURN -WITH E1(N) AS ( -SELECT N -FROM (VALUES (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL)) AS X(N) -), -itally(N) AS -( - SELECT TOP(CONVERT(INT,LEN(@String),0)) ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) - FROM E1 T1 CROSS JOIN E1 T2 CROSS JOIN E1 T3 CROSS JOIN E1 T4 -) -SELECT NewString = -(( - SELECT SUBSTRING(@String,N,1) - FROM iTally - WHERE 0 = PATINDEX(@Pattern,SUBSTRING(@String COLLATE Latin1_General_BIN,N,1)) - FOR XML PATH(''),TYPE -).value('.[1]','varchar(8000)')); -GO +IF OBJECT_ID('dbo.udf_PatExclude8K', 'IF') IS NULL +EXECUTE ('CREATE FUNCTION dbo.udf_PatExclude8K() RETURNS TABLE WITH SCHEMABINDING AS RETURN SELECT 1 AS A;'); +GO + + +ALTER FUNCTION dbo.udf_PatExclude8K( + @String VARCHAR(8000) + , @Pattern VARCHAR(50) +) +/******************************************************************************* + Purpose: + Given a string (@String) and a pattern (@Pattern) of characters to remove, + remove the patterned characters from the string. + +Usage: +--===== Basic Syntax Example + SELECT CleanedString + FROM dbo.udf_PatExclude8K(@String, @Pattern); + +--===== Remove all but Alpha characters + SELECT CleanedString + FROM dbo.SomeTable st + CROSS APPLY dbo.udf_PatExclude8K(st.SomeString,'%[^A-Za-z]%'); + +--===== Remove all but Numeric digits + SELECT CleanedString + FROM dbo.SomeTable st + CROSS APPLY dbo.udf_PatExclude8K(st.SomeString,'%[^0-9]%'); + + Programmer Notes: + 1. @Pattern is not case sensitive (the function can be easily modified to make it so) + 2. There is no need to include the "%" before and/or after your pattern since since we + are evaluating each character individually + + Revision History: + Rev 00 - 10/27/2014 Initial Development - Alan Burstein + + Rev 01 - 10/29/2014 Mar 2007 - Alan Burstein + - Redesigned based on the dbo.STRIP_NUM_EE by Eirikur Eiriksson + (see: http://www.sqlservercentral.com/Forums/Topic1585850-391-2.aspx) + - change how the cte tally table is created + - put the include/exclude logic in a CASE statement instead of a WHERE clause + - Added Latin1_General_BIN Colation + - Add code to use the pattern as a parameter. + + Rev 02 - 11/6/2014 + - Added final performane enhancement (more cudo's to Eirikur Eiriksson) + - Put 0 = PATINDEX filter logic into the WHERE clause + +Rev 03 - 5/16/2015 + - Updated code to deal with special XML characters +*******************************************************************************/ +RETURNS TABLE WITH SCHEMABINDING AS +RETURN +WITH E1(N) AS ( +SELECT N +FROM (VALUES (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL)) AS X(N) +), +iTally(N) AS +( + SELECT TOP(CONVERT(INT,LEN(@String),0)) ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) + FROM E1 T1 CROSS JOIN E1 T2 CROSS JOIN E1 T3 CROSS JOIN E1 T4 +) +SELECT NewString = +(( + SELECT SUBSTRING(@String,N,1) + FROM iTally + WHERE 0 = PATINDEX(@Pattern,SUBSTRING(@String COLLATE Latin1_General_BIN,N,1)) + FOR XML PATH(''),TYPE +).value('.[1]','varchar(8000)')); +GO diff --git a/User_Defined_Function/udf_PatReplace8K.sql b/User_Defined_Function/udf_PatReplace8K.sql new file mode 100644 index 00000000..09a525fb --- /dev/null +++ b/User_Defined_Function/udf_PatReplace8K.sql @@ -0,0 +1,87 @@ +IF OBJECT_ID('dbo.udf_PatReplace8K', 'IF') IS NULL +EXECUTE ('CREATE FUNCTION dbo.udf_PatReplace8K() RETURNS TABLE WITH SCHEMABINDING AS RETURN SELECT 1 AS A;'); +GO + + +ALTER FUNCTION dbo.udf_PatReplace8K +( + @string varchar(8000), + @pattern varchar(50), + @replace varchar(1) +) +/***************************************************************************************** +Purpose: + Given a string (@string), a pattern (@pattern), and a replacement character (@replace) + udf_PatReplace8K will replace any character in @string that matches the @pattern parameter + with the character, @replace. + +Usage: +--===== Basic Syntax Example + SELECT pr.NewString + FROM dbo.udf_PatReplace8K(@string, @pattern, @replace); + +--===== Replace numeric characters with a "*" + SELECT pr.NewString + FROM dbo.udf_PatReplace8K('My phone number is 555-2211','[0-9]','*') pr; + +--==== Using againsts a table + DECLARE @table TABLE(OldString varchar(40)); + INSERT @table VALUES + ('Call me at 555-222-6666'), + ('phone number: (312)555-2323'), + ('He can be reached at 444.665.4466'); + SELECT t.OldString, pr.NewString + FROM @table t + CROSS APPLY dbo.udf_PatReplace8K(t.OldString,'[0-9]','*') pr; + + Programmer Notes: + 1. Required SQL Server 2008+ + 2. @pattern IS case sensitive but can be easily modified to make it case insensitive + 3. There is no need to include the "%" before and/or after your pattern since since we + are evaluating each character individually + 4. Certain special characters, such as "$" and "%" need to be escaped with a "/" + like so: [/$/%] + +Revision History: + Rev 00 - 10/27/2014 Initial Development - Alan Burstein + + Rev 01 - 10/29/2014 Mar 2007 - Alan Burstein + - Redesigned based on the dbo.STRIP_NUM_EE by Eirikur Eiriksson + (see: http://www.sqlservercentral.com/Forums/Topic1585850-391-2.aspx) + - change how the cte tally table is created + - put the include/exclude logic in a CASE statement instead of a WHERE clause + - Added Latin1_General_BIN Colation + - Add code to use the pattern as a parameter. + + Rev 02 - 20141106 + - Added final performane enhancement (more cudo's to Eirikur Eiriksson) + - Put 0 = PATINDEX filter logic into the WHERE clause + +Rev 03 - 20150516 + - Updated to deal with special XML characters + +Rev 04 - 20170320 + - changed @replace from char(1) to varchar(1) to address how spaces are handled +*****************************************************************************************/ +RETURNS TABLE WITH SCHEMABINDING +AS +RETURN +WITH +E1(N) AS (SELECT N FROM (VALUES (1),(1),(1),(1),(1),(1),(1),(1),(1),(1)) AS E1(N)), +iTally(N) AS +( + SELECT TOP (LEN(@string)) CHECKSUM(ROW_NUMBER() OVER (ORDER BY (SELECT NULL))) + FROM E1 a,E1 b,E1 c,E1 d +) +SELECT NewString = +(( + SELECT + CASE + WHEN PATINDEX(@pattern,SUBSTRING(@string COLLATE Latin1_General_BIN,N,1)) = 0 + THEN SUBSTRING(@string,N,1) + ELSE @replace + END + FROM iTally + FOR XML PATH(''), TYPE +).value('.[1]','varchar(8000)')); +GO diff --git a/User_Defined_Function/udf_PatternSplitLoop.sql b/User_Defined_Function/udf_PatternSplitLoop.sql index 534f285c..84d4a2ec 100644 --- a/User_Defined_Function/udf_PatternSplitLoop.sql +++ b/User_Defined_Function/udf_PatternSplitLoop.sql @@ -8,15 +8,15 @@ CREATE FUNCTION [dbo].[udf_PatternSplitLoop] ) RETURNS @Results TABLE ( ItemNumber INT ,Item VARCHAR(400) - ,[Matched] INT ) + ,[Matched] INT) WITH SCHEMABINDING AS BEGIN; --- DECLARE a couple of variables we'll need in our loop +-- DECLARE a couple of variables we'll need in our loop DECLARE @ItemNumber INT = 0 -, @Remaining VARCHAR(400) = ISNULL(@String, '') +, @Remaining VARCHAR(400) = ISNULL(@String, '') -- Create the "not pattern" , @NotPattern VARCHAR(500) = REPLACE(REPLACE(@Pattern, '[', '[^'), '^^', '') , @Matched INT @@ -27,14 +27,15 @@ IF @String IS NULL OR @Pattern IS NULL WHILE DATALENGTH(@Remaining) > 0 BEGIN SELECT @ItemNumber = @ItemNumber + 1 - -- The item returned from the cascaded CROSS APPLY b below ,@String = CASE - -- When a+b = 1, then either a=1 and b=0 (the pattern was found but not pattern - -- was not found) or a=0 and b=1 (the not pattern was found but pattern was + -- The item returned from the cascaded CROSS APPLY b below + ,@String = CASE + -- When a+b = 1, then either a=1 and b=0 (the pattern was found but not pattern + -- was not found) or a=0 and b=1 (the not pattern was found but pattern was -- not found). - -- This means that no meaninful patterns are found in what remains so were done. - WHEN a+b = 1 THEN @Remaining - -- This case returns the chunk up to the start of the next pattern/not pattern - WHEN (a=1 AND b>0) OR (b=1 AND a>0) THEN SUBSTRING(@Remaining, 1, CASE a + -- This means that no meaninful patterns are found in what remains so were done. + WHEN a+b = 1 THEN @Remaining + -- This case returns the chunk up to the start of the next pattern/not pattern + WHEN (a=1 AND b>0) OR (b=1 AND a>0) THEN SUBSTRING(@Remaining, 1, CASE a WHEN 1 THEN b ELSE a END - 1) @@ -49,10 +50,10 @@ WHILE DATALENGTH(@Remaining) > 0 -- Now that we have our ItemNumber and Item (in @String) INSERT them into our results INSERT INTO @Results SELECT @ItemNumber, @String, @Matched - -- Find the remaining characters in the string + -- Find the remaining characters in the string SELECT @Remaining = CASE WHEN DATALENGTH(@Remaining) = DATALENGTH(@String) THEN '' - ELSE SUBSTRING(@Remaining, DATALENGTH(@String)+1, DATALENGTH(@Remaining)) + ELSE SUBSTRING(@Remaining, DATALENGTH(@String)+1, DATALENGTH(@Remaining)) END END diff --git a/User_Defined_Function/udf_QueriesWithParameterizationProblems.sql b/User_Defined_Function/udf_QueriesWithParameterizationProblems.sql new file mode 100644 index 00000000..ba44e728 --- /dev/null +++ b/User_Defined_Function/udf_QueriesWithParameterizationProblems.sql @@ -0,0 +1,46 @@ +/* +Author: Dennes Torres +Original link: https://www.red-gate.com/simple-talk/sql/database-administration/query-store-parameterization-problems +Description: Query Store and Parameterization Problems +*/ + + +CREATE FUNCTION dbo.QueriesWithParameterizationProblems() + RETURNS TABLE + AS + RETURN + ( + -- Parameterized queries with text and most recent planId + -- related with runtime stats grouped + -- Filtering system queries + select qsq.query_id, + max(qsqt.query_sql_text) query_sql_text, + max(qsp.plan_id) plan_id, + max(qsrs.max_duration) max_duration, + max(qsrs.max_cpu_time) max_cpu_time, + min(qsrs.min_cpu_time) min_cpu_time, + min(qsrs.min_duration) min_duration, + max(qsrs.stdev_duration) stdev_duration, + max(qsrs.stdev_cpu_time) stdev_cpu_time + from sys.query_store_query qsq, + sys.query_store_query_text qsqt, + sys.query_store_plan qsp, + sys.query_store_runtime_stats qsrs + where qsq.query_text_id= qsqt.query_text_id + and qsp.query_id=qsq.query_id + and qsrs.plan_id=qsp.plan_id + and (qsq.query_parameterization_type<>0 + or qsqt.query_sql_text like '%@%') + and qsq.is_internal_query=0 + and qsqt.query_sql_text not like '%sys.%' + and qsqt.query_sql_text not like '%sys[ ].%' + and qsqt.query_sql_text not like '%@[sys@].%' escape '@' + and qsqt.query_sql_text not like '%INFORMATION_SCHEMA%' + and qsqt.query_sql_text not like '%msdb%' + and qsqt.query_sql_text not like '%master%' + and qsp.last_execution_time=(select max(last_execution_time) + from sys.query_store_plan qsp2 + where qsp2.query_id= qsp.query_id) + group by qsq.query_id + ) +GO diff --git a/User_Defined_Function/udf_SecondConvertRangesInIntegerList.sql b/User_Defined_Function/udf_SecondConvertRangesInIntegerList.sql new file mode 100644 index 00000000..f67af91d --- /dev/null +++ b/User_Defined_Function/udf_SecondConvertRangesInIntegerList.sql @@ -0,0 +1,65 @@ +IF EXISTS(SELECT * FROM INFORMATION_SCHEMA.ROUTINES + WHERE ROUTINES.ROUTINE_NAME='SecondConvertRangesInIntegerList' + AND ROUTINES.ROUTINE_TYPE='function') +DROP FUNCTION dbo.SecondConvertRangesInIntegerList +go +CREATE FUNCTION SecondConvertRangesInIntegerList +( + -- the simple list. The list doesn't have to be in sorted order. + @list VARCHAR(MAX) --eg. 1,2,3,4,6,8,9,10,11,13,21,22,23,25,27,28,30 + --which would become 1-4,6,8-11,13,21-23,25,27,28,30 + --note that 27,28 are not converted to 27-28 because the range isn't sufficient +--SELECT dbo.SecondConvertRangesInIntegerList ('1,2,3,4,6,8,9,10,11,13,21,22,23,25,27,28,30') +) +RETURNS VARCHAR(MAX) +AS +Begin +DECLARE @XMLVersionOfList XML; -- we use this to slice up the list +DECLARE @MyNumbers TABLE --we will insert it into this table variable + ( + rank INT IDENTITY(1, 1), + number INT PRIMARY KEY +); +DECLARE @ranks TABLE + ( + theMin INT, + TheMax INT, + TheCount INT +); +SELECT @XMLVersionOfList = + '' + REPLACE(@list, ',', '') + ''; +--this will convert the list of numbers into XML and do some validity-checking. +--we put these in a table variable that has a primary key, ready for use +INSERT INTO @MyNumbers(number) + SELECT x.y.value('.', 'int') AS IDs + FROM @XMLVersionOfList.nodes('/list/i/text()') AS x(y); +--this will fail of course if it isn't an integer +-- now we group into sequences +INSERT INTO @ranks(theMin, TheMax, TheCount) + SELECT MIN([@MyNumbers].number), MAX([@MyNumbers].number), COUNT(*) + FROM @MyNumbers + GROUP BY [@MyNumbers].number - [@MyNumbers].rank; +-- we can now create the ranged list. We need to check whether the sequence +-- was less than three long. Otherwise it would be simple. +DECLARE @Outputlist VARCHAR(MAX); +SELECT @Outputlist = ''; +SELECT @Outputlist = @Outputlist+ + CASE + WHEN ThisRowsRange.TheCount IS NULL THEN + CASE WHEN PreviousRowsRange.TheCount < 3 + THEN ','+CONVERT(VARCHAR(5),ThisRow.number) ELSE '' + END + WHEN ThisRowsRange.TheCount<3 THEN ','+CONVERT(VARCHAR(5),ThisRow.number) + ELSE ','+CONVERT(VARCHAR(5),ThisRowsRange.theMin) + +'-'+CONVERT(VARCHAR(5),ThisRowsRange.TheMax) + END + FROM @MyNumbers ThisRow + LEFT OUTER JOIN @MyNumbers PreviousRow + ON ThisRow.rank = PreviousRow.rank + 1 + LEFT OUTER JOIN @ranks ThisRowsRange + ON ThisRow.number = ThisRowsRange.theMin + LEFT OUTER JOIN @ranks PreviousRowsRange + ON PreviousRow.number = PreviousRowsRange.theMin + ORDER BY ThisRow.rank; +RETURN STUFF(@Outputlist, 1, 1, ''); +End \ No newline at end of file diff --git a/User_Defined_Function/udf_StringComparisonsLevenshteinFull-matrix.sql b/User_Defined_Function/udf_StringComparisonsLevenshteinFull-matrix.sql new file mode 100644 index 00000000..c90362b3 --- /dev/null +++ b/User_Defined_Function/udf_StringComparisonsLevenshteinFull-matrix.sql @@ -0,0 +1,50 @@ + +alter FUNCTION LevenschteinDifference +( +@FirstString nVarchar(255), @SecondString nVarchar(255) +) +RETURNS int +as begin +Declare @PseudoMatrix table + (location int identity primary key, + firstorder int not null, + Firstch nchar(1), + secondorder int not null, + Secondch nchar(1), + Thevalue int not null default 0, + PreviousRowValues varchar(200) + ) + +insert into @PseudoMatrix (firstorder, firstch, secondorder, secondch, TheValue ) +SELECT TheFirst.number,TheFirst.ch, TheSecond.number,TheSecond.ch,0 + FROM --divide up the first string into a table of characters/sequence + (SELECT number, SUBSTRING(@FirstString,number,1) AS ch + FROM numbers WHERE number <= LEN(@FirstString) union all Select 0,Char(0)) TheFirst + cross JOIN --divide up the second string into a table of characters/sequence + (SELECT number, SUBSTRING(@SecondString,number,1) AS ch + FROM numbers WHERE number <= LEN(@SecondString) union all Select 0,Char(0)) TheSecond + --ON Thefirst.ch= Thesecond.ch --do all valid matches +order by TheFirst.number, TheSecond.number + +Declare @current Varchar(255) +Declare @previous Varchar(255) +Declare @TheValue int +Declare @Deletion int, @Insertion int, @Substitution int, @minim int +Select @current='', @previous='' +Update @PseudoMatrix + Set + @Deletion=@TheValue+1, + @Insertion=ascii(substring(@previous,secondorder+1,1))+1, + @Substitution=ascii(substring(@previous,(secondorder),1)) +1, + @minim=case when @Deletion<@Insertion then @Deletion else @insertion end, + @TheValue = Thevalue = case --when Firstorder+SecondOrder=0 then 0 + when SecondOrder=0 then FirstOrder + When FirstOrder=0 then Secondorder + when FirstCh=SecondCh then ascii(substring(@previous,(secondorder),1)) + else case when @Minim<@Substitution then @Minim else @Substitution end + end, + @Previous=PreviousRowValues=case when secondorder =0 then @current else @Previous end, + @current= case when secondorder =0 then char(@TheValue) else @Current+char(@TheValue) end +return @TheValue +End +Go \ No newline at end of file diff --git a/User_Defined_Function/udf_StringComparisonsLevenshteinString-based.sql b/User_Defined_Function/udf_StringComparisonsLevenshteinString-based.sql new file mode 100644 index 00000000..0fcab89b --- /dev/null +++ b/User_Defined_Function/udf_StringComparisonsLevenshteinString-based.sql @@ -0,0 +1,77 @@ +alter function LEVENSHTEIN ( @SourceString nvarchar(100), @TargetString nvarchar(100) ) +--Returns the Levenshtein Distance between @SourceString string and @TargetString +--Translated to TSQL by Joseph Gama +--Updated slightly by Phil Factor +returns int +as +BEGIN +DECLARE @Matrix Nvarchar(4000), @LD int, @TargetStringLength int, @SourceStringLength int, +@ii int, @jj int, @CurrentSourceChar nchar(1), @CurrentTargetChar nchar(1),@Cost int, +@Above int,@AboveAndToLeft int,@ToTheLeft int, @MinimumValueOfCells int +-- Step 1: Set n to be the length of s. Set m to be the length of t. +-- If n = 0, return m and exit. +-- If m = 0, return n and exit. +-- Construct a matrix containing 0..m rows and 0..n columns. +if @SourceString is null or @TargetString is null return null +Select @SourceStringLength=LEN(@SourceString), + @TargetStringLength=LEN(@TargetString), + @Matrix=replicate(nchar(0),(@SourceStringLength+1)*(@TargetStringLength+1)) +If @SourceStringLength = 0 return @TargetStringLength +If @TargetStringLength = 0 return @SourceStringLength +if (@TargetStringLength+1)*(@SourceStringLength+1)> 4000 return -1 +--Step 2: Initialize the first row to 0..n. +-- Initialize the first column to 0..m. +SET @ii=0 +WHILE @ii<=@SourceStringLength + BEGIN + SET @Matrix=STUFF(@Matrix,@ii+1,1,nchar(@ii))--d(i, 0) = i + SET @ii=@ii+1 + END +SET @ii=0 +WHILE @ii<=@TargetStringLength + BEGIN + SET @Matrix=STUFF(@Matrix,@ii*(@SourceStringLength+1)+1,1,nchar(@ii))--d(0, j) = j + SET @ii=@ii+1 + END +--Step 3 Examine each character of s (i from 1 to n). +SET @ii=1 +WHILE @ii<=@SourceStringLength + BEGIN + +--Step 4 Examine each character of t (j from 1 to m). + SET @jj=1 + WHILE @jj<=@TargetStringLength + BEGIN +--Step 5 and 6 + Select + --Set cell d[i,j] of the matrix equal to the minimum of: + --a. The cell immediately above plus 1: d[i-1,j] + 1. + --b. The cell immediately to the left plus 1: d[i,j-1] + 1. + --c. The cell diagonally above and to the left plus the cost: d[i-1,j-1] + cost + @Above=unicode(substring(@Matrix,@jj*(@SourceStringLength+1)+@ii-1+1,1))+1, + @ToTheLeft=unicode(substring(@Matrix,(@jj-1)*(@SourceStringLength+1)+@ii+1,1))+1, + @AboveAndToLeft=unicode(substring(@Matrix,(@jj-1)*(@SourceStringLength+1)+@ii-1+1,1)) + + case when (substring(@SourceString,@ii,1)) = (substring(@TargetString,@jj,1)) + then 0 else 1 end--the cost + -- If s[i] equals t[j], the cost is 0. + -- If s[i] doesn't equal t[j], the cost is 1. + -- now calculate the minimum value of the three + if (@Above < @ToTheLeft) AND (@Above < @AboveAndToLeft) + select @MinimumValueOfCells=@Above + else if (@ToTheLeft < @Above) AND (@ToTheLeft < @AboveAndToLeft) + select @MinimumValueOfCells=@ToTheLeft + else + select @MinimumValueOfCells=@AboveAndToLeft + Select @Matrix=STUFF(@Matrix, + @jj*(@SourceStringLength+1)+@ii+1,1, + nchar(@MinimumValueOfCells)), + @jj=@jj+1 + END + SET @ii=@ii+1 + END +--Step 7 After iteration steps (3, 4, 5, 6) are complete, distance is found in cell d[n,m] +return unicode(substring( + @Matrix,@SourceStringLength*(@TargetStringLength+1)+@TargetStringLength+1,1 + )) +END +go \ No newline at end of file diff --git a/User_Defined_Function/udf_StringComparisonsLongestCommonSubsequence.sql b/User_Defined_Function/udf_StringComparisonsLongestCommonSubsequence.sql new file mode 100644 index 00000000..391420c7 --- /dev/null +++ b/User_Defined_Function/udf_StringComparisonsLongestCommonSubsequence.sql @@ -0,0 +1,99 @@ +IF OBJECT_ID (N'LongestCommonSubsequence') IS NOT NULL + DROP FUNCTION LongestCommonSubsequence +GO + +Create FUNCTION LongestCommonSubsequence +/** +summary: > + The longest common subsequence (LCS) problem is the problem of finding the + longest subsequence common to all sequences in two sequences. It differs + from problems of finding common substrings: unlike substrings, subsequences + are not required to occupy consecutive positions within the original + sequences. For example, the sequences "1234" and "1224533324" have an LCS + of "1234": +Author: Phil Factor +Revision: 1.0 +date: 05 Dec 2014 +example: + code: | + Select dbo.LongestCommonSubsequence ('1234', '1224533324') + Select dbo.LongestCommonSubsequence ('thisisatest', 'testing123testing') + Select dbo.LongestCommonSubsequence ( 'XMJYAUZ', 'MZJAWXU') + Select dbo.LongestCommonSubsequence ( 'beginning-middle-ending', + 'beginning-diddle-dum-ending') +returns: > + the longest common subsequence as a string +**/ +( + @firstString Varchar(max), + @SecondString Varchar(max) +) +RETURNS varchar(max) +as begin + +Declare @Array Varchar(MAX) +Declare @ArrayMax int +Declare @west char(1) +Declare @Lines Varchar(max) +Declare @ii int, @jj int, @iiMax int, @jjMax int, @index int + +Select @iiMax=len(@FirstString), --the length of the first string + @jjMax=len(@SecondString), --the length of the second string + @index=@jjMax+1 --where the first new item (matrix has an extra row & column) +Select @ArrayMax=(@iiMax)*(@jjMax)--total length of the array iterated +Select @Array=replicate(char(0), @jjMax+1) --add in the first nought-filled row + +Select + @Index=@Index+case when (number-1) % @jjMax = 0 then 2 else 1 end, --current index + @west=case when (number-1) % @jjMax = 0 then Char(0) else substring(@Array,@index-1,1) end, + --as we add an extra column in, this is a dangerous operation otherwise + @Array=@Array --we add a character to the string array, Char(0)--char + + case when (number-1) % @jjMax = 0 then Char(0) else '' end -- begin new row always zero + + case --check first to see if there was a match. If so, take north west number incremented + when substring(@firstString,((Number-1)/@jjMax)+1,1) + =substring(@SecondString, ((number-1)% @jjMax)+1 ,1) + --remember to set the appropriate collation for this comparison! + then Char(Ascii(substring(@Array,@index-@jjmax-2,1))+1)--increment the NW value + when Ascii(substring(@Array,@index-@jjmax-1,1))>ascii(@west) --compare west to north + then substring(@Array,@index-@jjmax-1,1) --and take the larger + else @west-- number to west if larger + end +from numbers where number<=@ArrayMax + +--Now all we need to do is to backtrack through the matrix to find the best solution +Declare @commonString Varchar(max), @X_Y int +Select @CommonString ='' --this contains the string +Select @ii=@iimax+1,@jj=@jjmax+1 +while (@ii>1 and @jj>1) + begin + Select @X_Y = ((@ii-1)*(@jjMax+1))+@jj --the current matrix location + if (substring(@firststring,@ii-1,1) = substring(@Secondstring,@jj-1,1)) + BEGIN --if there is a match, add the character (we'll reverse it later) + Select @CommonString=@CommonString+substring(@firststring,@ii-1,1) + select @jj=@jj-1, @ii=@ii-1 --go north-west + end + else if ascii(Substring(@Array,@X_Y,1)) = ascii(Substring(@Array, @X_Y-@jjMax-1, 1)) + select @ii=@ii-1 + ELSE if ascii(Substring(@Array,@X_Y,1)) = ascii(Substring(@Array, @X_Y-1, 1)) + select @jj=@jj-1 + else break + if @@error>0 break + end + return Reverse(@CommonString) + end +go + +Declare @timing datetime Select @Timing=GetDate() + +if dbo.LongestCommonSubsequence ('1234', '1224533324')<>'1234' + raiserror('test 1 failed',16,1) +if dbo.LongestCommonSubsequence ('thisisatest', 'testing123testing')<>'tsitest' + raiserror('test 2 failed',16,1) +if dbo.LongestCommonSubsequence ('XMJYAUZ', 'MZJAWXU')<>'MJAU' + raiserror('test 3 failed',16,1) +if dbo.LongestCommonSubsequence ('yab', 'xabyrbyab')<>'yab' + raiserror('test 4 failed',16,1) +if dbo.LongestCommonSubsequence ('beginning-middle-ending','beginning-diddle-dum-ending') + <>'beginning-iddle-ending' raiserror('test 5 failed',16,1) + +select datediff(millisecond,@timing,GetDate()) as milliseconds \ No newline at end of file diff --git a/User_Defined_Function/udf_StringComparisonsMetaphoneAlgorithm.sql b/User_Defined_Function/udf_StringComparisonsMetaphoneAlgorithm.sql new file mode 100644 index 00000000..ffd08ab4 --- /dev/null +++ b/User_Defined_Function/udf_StringComparisonsMetaphoneAlgorithm.sql @@ -0,0 +1,283 @@ +IF OBJECT_ID('dbo.Metaphone','FN') IS NOT NULL --drop any existing metaphone function + DROP FUNCTION dbo.Metaphone +go +CREATE FUNCTION dbo.Metaphone +/** +summary: > +The Metaphone phonetic algorithm was devised by Lawrence Philips in 1990. +It reduces words to their basic sounds, but produces a more accurate encoding, +than Soundex for matching words that sound similar. +Metaphone is a built-in operator in a number of systems such as PHP but there +seemed to be no available SQL Version until I wrote this. It is merely +a reverse engineering of the original published algorithm but tweaked to ensure +that it gave the same result as the PHP version. +Author: Phil Factor +Revision: 1.0 +date: 21 Jan 2017 +example: > + Select dbo.Metaphone ('opportunities') + --OPRTNTS +Parameters: + -- @String (a word -all punctuation will be stripped out) + A string representing the Metaphone equivalent of the word. +**/ +( + @String VARCHAR(30) +) +RETURNS VARCHAR(10) +AS +BEGIN +DECLARE @New BIT, @ii INT, @Metaphone VARCHAR(28), @Len INT, @where INT; +DECLARE @This CHAR, @Next CHAR, @Following CHAR, @Previous CHAR, @silent BIT; + +SELECT @String = UPPER(LTRIM(COALESCE(@String, ''))); --trim and upper case +SELECT @where= PATINDEX ('%[^A-Z]%',@String COLLATE Latin1_General_CI_AI ) +WHILE @where>0 --strip out all non-alphabetic characters!(Edited. Thanks Ros Presser) + BEGIN + SELECT @String=STUFF(@string,@where,1,'') + SELECT @where=PATINDEX ('%[^A-Z]%',@String COLLATE Latin1_General_CI_AI ) + END +IF(LEN(@String) < 2) RETURN @String + +--do the start of string stuff first. +--If the word begins with 'KN', 'GN', 'PN', 'AE', 'WR', drop the first letter. +-- "Aebersold", "Gnagy", "Knuth", "Pniewski", "Wright" +IF SUBSTRING(@String, 1, 2) IN ( 'KN', 'GN', 'PN', 'AE', 'WR' ) + SELECT @String = STUFF(@String, 1, 1, ''); +-- Beginning of word: "x" change to "s" as in "Deng Xiaopeng" +IF SUBSTRING(@String, 1, 1) = 'X' + SELECT @String = STUFF(@String, 1, 1, 'S'); +-- Beginning of word: "wh-" change to "w" as in "Whatsoever" +IF @String LIKE 'WH%' + SELECT @String = STUFF(@String, 1, 1, 'W'); +-- Set up for While loop +SELECT @Len = LEN(@String), @Metaphone = '', -- Initialize the main variable + @New = 1, -- this variable only used next 10 lines!!! + @ii = 1; --Position counter +-- +WHILE((LEN(@Metaphone) <= 8) AND (@ii <= @Len)) + BEGIN --SET up the 'pointers' for this loop-around } + SELECT @Previous = + CASE WHEN @ii > 1 THEN SUBSTRING(@String, @ii - 1, 1) ELSE '' END, + -- originally a nul terminated string } + @This = SUBSTRING(@String, @ii, 1), + @Next = + CASE WHEN @ii < @Len THEN SUBSTRING(@String, @ii + 1, 1) ELSE '' END, + @Following = + CASE WHEN((@ii + 1) < @Len) THEN SUBSTRING(@String, @ii + 2, 1) ELSE + '' END + -- 'CC' inside word + --SELECT @Previous,@this,@Next,@Following,@New,@ii,@Len,@Metaphone + /* Drop duplicate adjacent letters, except for C.*/ + IF @This=@Previous AND @This<> 'C' + BEGIN + --we do nothing + SELECT @New=0 + END + /*Drop all vowels unless it is the beginning.*/ + ELSE IF @This IN ( 'A', 'E', 'I', 'O', 'U' ) + BEGIN + IF @ii = 1 --vowel at the beginning + SELECT @Metaphone = @This; + /* B -> B unless at the end of word after "m", as in "dumb", "Comb" */ + END; + ELSE IF @This = 'B' AND NOT ((@ii = @Len) AND (@Previous = 'M')) + BEGIN + SELECT @Metaphone = @Metaphone + 'B'; + END; + -- -mb is silent + /*'C' transforms to 'X' if followed by 'IA' or 'H' (unless in latter case, it is part of '-SCH-', + in which case it transforms to 'K'). 'C' transforms to 'S' if followed by 'I', 'E', or 'Y'. + Otherwise, 'C' transforms to 'K'.*/ + ELSE IF @This = 'C' + BEGIN -- -sce, i, y = silent + IF NOT (@Previous= 'S') AND (@Next IN ( 'H', 'E', 'I', 'Y' )) --front vowel set + BEGIN + IF(@Next = 'I') AND (@Following = 'A') + SELECT @Metaphone = @Metaphone + 'X'; -- -cia- + ELSE IF(@Next IN ( 'E', 'I', 'Y' )) + SELECT @Metaphone = @Metaphone + 'S'; -- -ce, i, y = 'S' } + ELSE IF(@Next = 'H') AND (@Previous = 'S') + SELECT @Metaphone = @Metaphone + 'K'; -- -sch- = 'K' } + ELSE IF(@Next = 'H') + BEGIN + IF(@ii = 1) AND ((@ii + 2) <= @Len) + AND NOT(@Following IN ( 'A', 'E', 'I', 'O', 'U' )) + SELECT @Metaphone = @Metaphone + 'K'; + ELSE + SELECT @Metaphone = @Metaphone + 'X'; + END + End + ELSE + SELECT @Metaphone = @Metaphone +CASE WHEN @Previous= 'S' THEN '' else 'K' end; + -- Else silent + END; -- Case C } + /*'D' transforms to 'J' if followed by 'GE', 'GY', or 'GI'. Otherwise, 'D' + transforms to 'T'.*/ + ELSE IF @This = 'D' + BEGIN + SELECT @Metaphone = @Metaphone + + CASE WHEN(@Next = 'G') AND (@Following IN ( 'E', 'I', 'Y' )) --front vowel set + THEN 'J' ELSE 'T' END; + END; + ELSE IF @This = 'G' + /*Drop 'G' if followed by 'H' and 'H' is not at the end or before a vowel. Drop 'G' + if followed by 'N' or 'NED' and is at the end. + 'G' transforms to 'J' if before 'I', 'E', or 'Y', and it is not in 'GG'. + Otherwise, 'G' transforms to 'K'.*/ + BEGIN + SELECT @silent = + CASE WHEN (@Next = 'H') AND (@Following IN ('A','E','I','O','U')) + AND (@ii > 1) AND (((@ii+1) = @Len) OR ((@Next = 'n') AND + (@Following = 'E') AND SUBSTRING(@String,@ii+3,1) = 'D') AND ((@ii+3) = @Len)) +-- Terminal -gned + AND (@Previous = 'i') AND (@Next = 'n') + THEN 1 + -- if not start and near -end or -gned.) + WHEN (@ii > 1) AND (@Previous = 'D')-- gnuw + AND (@Next IN ('E','I','Y')) --front vowel set + THEN 1 -- -dge, i, y + ELSE 0 END + IF NOT (@silent=1) + SELECT @Metaphone = @Metaphone + + CASE WHEN (@Next IN ('E','I','Y')) --front vowel set + THEN 'J' ELSE 'K' END + END + /*Drop 'H' if after vowel and not before a vowel. + or the second char of "-ch-", "-sh-", "-ph-", "-th-", "-gh-"*/ + + ELSE IF @This = 'H' + BEGIN + IF NOT ( (@ii= @Len) OR (@Previous IN ( 'C', 'S', 'T', 'G' ))) + AND (@Next IN ( 'A', 'E', 'I', 'O', 'U' ) ) + SELECT @Metaphone = @Metaphone + 'H'; + -- else silent (vowel follows) } + END; + ELSE IF @This IN --some get no substitution + ( 'F', 'J', 'L', 'M', 'N', 'R' ) + BEGIN + SELECT @Metaphone = @Metaphone + @This; + END; + /*'CK' transforms to 'K'.*/ + ELSE IF @This = 'K' + BEGIN + IF(@Previous <> 'C') + SELECT @Metaphone = @Metaphone + 'K'; + END; + /*'PH' transforms to 'F'.*/ + ELSE IF @This = 'P' + BEGIN + IF(@Next = 'H') SELECT @Metaphone = @Metaphone + 'F', @ii = @ii + 1; + -- Skip the 'H' + ELSE + SELECT @Metaphone = @Metaphone + 'P'; + END; + /*'Q' transforms to 'K'.*/ + ELSE IF @This = 'Q' + BEGIN + SELECT @Metaphone = @Metaphone + 'K'; + END; + /*'S' transforms to 'X' if followed by 'H', 'IO', or 'IA'.*/ + ELSE IF @This = 'S' + BEGIN + SELECT @Metaphone = @Metaphone + + CASE + WHEN(@Next = 'H') + OR( (@ii> 1) AND (@Next = 'i') + AND (@Following IN ( 'O', 'A' ) ) + ) + THEN 'X' ELSE 'S' END; + END; + /*'T' transforms to 'X' if followed by 'IA' or 'IO'. 'TH' transforms +to '0'. Drop 'T' if followed by 'CH'.*/ + ELSE IF @This = 'T' + BEGIN + SELECT @Metaphone = @Metaphone + + CASE + WHEN(@ii = 1) AND (@Next = 'H') AND (@Following = 'O') + THEN 'T' -- Initial Tho- } + WHEN(@ii > 1) AND (@Next = 'i') + AND (@Following IN ( 'O', 'A' )) + THEN 'X' + WHEN(@Next = 'H') THEN '0' + WHEN NOT((@Next = 'C') AND (@Following = 'H')) + THEN 'T' + ELSE '' END; + -- -tch = silent } + END; + /*'V' transforms to 'F'.*/ + ELSE IF @This = 'V' + BEGIN + SELECT @Metaphone = @Metaphone + 'F'; + END; + /*'WH' transforms to 'W' if at the beginning. Drop 'W' if not followed by a vowel.*/ + /*Drop 'Y' if not followed by a vowel.*/ + ELSE IF @This IN ( 'W', 'Y' ) + BEGIN + IF @Next IN ( 'A', 'E', 'I', 'O', 'U' ) + SELECT @Metaphone = @Metaphone + @This; + --else silent + /*'X' transforms to 'S' if at the beginning. Otherwise, 'X' transforms to 'KS'.*/ + END; + ELSE IF @This = 'X' + BEGIN + SELECT @Metaphone = @Metaphone + 'KS'; + END; + /*'Z' transforms to 'S'.*/ + ELSE IF @This = 'Z' + BEGIN + SELECT @Metaphone = @Metaphone + 'S'; + END; + ELSE + RETURN 'error with '''+ @This+ ''''; + -- end + SELECT @ii = @ii + 1; + END; -- While +return @Metaphone +END +GO + +/* +Check against the PHP implementation*/ +SELECT * FROM +(SELECT dbo.Metaphone ('craven') AS Attempt,'craven' AS original ,'KRFN' AS canonical +UNION ALL SELECT dbo.Metaphone ('platitudinous'),'platitudinous','PLTTTNS' +UNION ALL SELECT dbo.Metaphone ('woodcarvings'),'woodcarvings','WTKRFNKS' +UNION ALL SELECT dbo.Metaphone ('overlaid'),'overlaid','OFRLT' +UNION ALL SELECT dbo.Metaphone ('solitaries'),'solitaries','SLTRS' +UNION ALL SELECT dbo.Metaphone ('beatific'),'beatific', 'BTFK' +UNION ALL SELECT dbo.Metaphone ('plaza'),'plaza','PLS' +UNION ALL SELECT dbo.Metaphone ('paramilitary'),'paramilitary','PRMLTR' +UNION ALL SELECT dbo.Metaphone ('synod'),'synod','SNT' +UNION ALL SELECT dbo.Metaphone ('marinas'),'marinas','MRNS' +UNION ALL SELECT dbo.Metaphone ('hyperventilation'),'hyperventilation','PRFNTLXN' +UNION ALL SELECT dbo.Metaphone ('celebrant'),'celebrant','SLBRNT' +UNION ALL SELECT dbo.Metaphone ('pipsqueaks'),'pipsqueaks','PPSKKS' +UNION ALL SELECT dbo.Metaphone ('dazzles'),'dazzles', 'TSLS' +UNION ALL SELECT dbo.Metaphone ('bloodbaths'),'bloodbaths','BLTB0S' +UNION ALL SELECT dbo.Metaphone ('lotion'),'lotion','LXN' +UNION ALL SELECT dbo.Metaphone ('agreeable'),'agreeable','AKRBL' +UNION ALL SELECT dbo.Metaphone ('shariah'),'shariah','XR' +UNION ALL SELECT dbo.Metaphone ('direction'),'direction','TRKXN' +UNION ALL SELECT dbo.Metaphone ('constricts'),'constricts','KNSTRKTS' +UNION ALL SELECT dbo.Metaphone ('avowedly'),'avowedly','AFWTL' +UNION ALL SELECT dbo.Metaphone ('exorcisms'),'exorcisms','EKSRSSMS' +UNION ALL SELECT dbo.Metaphone ('starches'),'starches','STRXS' +UNION ALL SELECT dbo.Metaphone ('poses'),'poses','PSS' +UNION ALL SELECT dbo.Metaphone ('levies'),'levies','LFS' +UNION ALL SELECT dbo.Metaphone ('clicks'),'clicks','KLKS' +UNION ALL SELECT dbo.Metaphone ('minstrels'),'minstrels','MNSTRLS' +UNION ALL SELECT dbo.Metaphone ('propounding'),'propounding','PRPNTNK' +UNION ALL SELECT dbo.Metaphone ('opalescent'),'opalescent','OPLSNT' +UNION ALL SELECT dbo.Metaphone ('hotline'),'hotline','HTLN' +UNION ALL SELECT dbo.Metaphone ('soporifically'),'soporifically','SPRFKL' +UNION ALL SELECT dbo.Metaphone ('python'),'python','P0N' +UNION ALL SELECT dbo.Metaphone ('drab'),'drab','TRB' +UNION ALL SELECT dbo.Metaphone ('appraised'),'appraised','APRST' +UNION ALL SELECT dbo.Metaphone ('commotions'),'commotions','KMXNS' +UNION ALL SELECT dbo.Metaphone ('defeatists'),'defeatists','TFTSTS' +UNION ALL SELECT dbo.Metaphone ('dispensations'),'dispensations','TSPNSXNS' +UNION ALL SELECT dbo.Metaphone ('downfall'),'downfall','TNFL' +UNION ALL SELECT dbo.Metaphone ('naturalising'),'naturalising','NTRLSNK')k +WHERE attempt <> canonical +IF @@RowCount>0 RAISERROR( 'As you can see, there was a problem somewhere',16,1); diff --git a/Utilities/README.md b/Utilities/README.md index 59f5cba8..c7406934 100644 --- a/Utilities/README.md +++ b/Utilities/README.md @@ -1,137 +1,324 @@ # Microsoft SQL Server Utilities and Tools -Useful free and paid Microsoft SQL Server utilities and tools - - -| Name/Description | Official/Download page | Release Date | Author | Free version | Price | -|-----------------------------------------------------------------------|--------------------------------------|------------- | -------------------|--------------|------:| -| [bcp Utility](#bcp) | [bcp Utility] | 2012-02-11 | Microsoft | Yes | No | -| [GraphView](#graphview) | [GraphView] | 2016-02-23 | Microsoft | Yes | No | -| [Baseline Security Analyze](#baseline-security-analyze) | [Baseline Security Analyze] | 2015-01-09 | Microsoft | Yes | No | -| [tablediff Utility](#tablediff-utility) | [tablediff Utility] | - | Microsoft | Yes | No | -| [Microsoft Log Parser](#microsoft-log-parser) | [Microsoft Log Parser] | - | Microsoft | Yes | No | -| [Diskspd](#diskspd) | [Diskspd] | 2015-12-14 | Microsoft | Yes | No | -| [HammerDB](#hammerdb) | [HammerDB] | 2015-05-04 | Open Source | Yes | No | -| [Exchange Server Error Code Look-up](#error-code-look-up) | [Exchange Server Error Code Look-up] | 2004-05-10 | Microsoft | Yes | No | -| [LINQPad](#linqpad) | [LINQPad] | 2016-01-02 | Joseph Albahari | Yes | $45 | -| [SqlDynamite](#sqldynamite) | [SqlDynamite] | 2016-04-06 | Anatoly Sova | Yes | No | -| [SQL Server Data Tools](#ssdt) | [SQL Server Data Tools] | 2016-04-14 | Microsoft | Yes | No | -| [Database Health Monitor](#database-health-monitor) | [Database Health Monitor] | 2016-03-20 | Steve Stedman | Yes | No | -| [SchemaDrift](#schemadrift) | [SchemaDrift] | 2016-02-28 | Steve Stedman | Yes | No | -| [dta Utility](#dta-utility) | [dta Utility] | - | Microsoft | Yes | No | -| [osql Utility](#osql-utility) | [osql Utility] | - | Microsoft | Yes | No | -| [sqldiag Utility](#sqldiag-utility) | [sqldiag Utility] | - | Microsoft | Yes | No | -| [sqldumper Utility](#sqldumper-utility) | [sqldumper Utility] | - | Microsoft | Yes | No | -| [SqlLocalDB Utility](#sqllocaldb-utility) | [SqlLocalDB Utility] | - | Microsoft | Yes | No | -| [sqllogship Utility](#sqllogship-utility) | [sqllogship Utility] | - | Microsoft | Yes | No | -| [sqlservr Application](#sqlservr-application) | [sqlservr Application] | - | Microsoft | Yes | No | -| [sqlps Utility](#sqlps-utility) | [sqlps Utility] | - | Microsoft | Yes | No | -| [sqlmaint Utility](#sqlmaint-utility) | [sqlmaint Utility] | - | Microsoft | Yes | No | -| [Ssms Utility](#ssms-utility) | [Ssms Utility] | - | Microsoft | Yes | No | -| [dtexec Utility](#dtexec-utility) | [dtexec Utility] | - | Microsoft | Yes | No | -| [SQL Server 2005 Best Practices Analyzer](#bpa-2005) | [BPA 2005] | 2008-08-13 | Microsoft | Yes | No | -| [SQL Server 2000 Best Practices Analyzer](#bpa-2000) | [BPA 2000] | 2010-04-26 | Microsoft | Yes | No | -| [SQL Server 2008 R2 Best Practices Analyzer](#bpa-2008) | [BPA 2008] | 2010-06-18 | Microsoft | Yes | No | -| [SQL Server 2012 Best Practices Analyzer](#bpa-2012) | [BPA 2012] | 2012-06-04 | Microsoft | Yes | No | -| [DLM Dashboard](#dlm-dashboard) | [DLM Dashboard] | 2016-04-27 | Red Gate | Yes | No | -| [Red Gate SQL Compare](#red-gate-sql-compare) | [Red Gate SQL Compare] | 2016-05-09 | Red Gate | No | $495 | -| [Red Gate SQL Data Compare](#red-gate-sql-data-compare) | [Red Gate SQL Data Compare] | 2016-05-09 | Red Gate | No | $495 | -| [Red Gate SQL Source Control](#red-gate-sql-source-control) | [Red Gate SQL Source Control] | 2016-02-03 | Red Gate | No | $495 | -| [Red Gate SQL Prompt](#red-gate-sql-prompt) | [Red Gate SQL Prompt] | 2016-04-28 | Red Gate | No | $369 | -| [Red Gate SQL Monitor](#red-gate-sql-monitor) | [Red Gate SQL Monitor] | 2015-10-15 | Red Gate | No | $1495 | -| [Red Gate SQL Backup Pro](#red-gate-sql-backup-pro) | [Red Gate SQL Backup Pro] | 2014-07-08 | Red Gate | No | $995 | -| [Red Gate SQL Doc](#red-gate-sql-doc) | [Red Gate SQL Doc] | 2016-04-26 | Red Gate | No | $369 | -| [Red Gate SQL Data Generator](#red-gate-sql-data-generator) | [Red Gate SQL Data Generator] | 2016-04-26 | Red Gate | No | $369 | -| [Red Gate SQL Dependency Tracker](#red-gate-sql-dependency-tracker) | [Red Gate SQL Dependency Tracker] | 2016-04-26 | Red Gate | No | $369 | -| [Red Gate SQL Multi Script](#red-gate-sql-multi-script) | [Red Gate SQL Multi Script] | 2016-04-15 | Red Gate | No | $245 | -| [Red Gate SQL Index Manager](#red-gate-sql-index-manager) | [Red Gate SQL Index Manager] | ? | Red Gate | No | $149 | -| [Red Gate SQL Comparison SDK](#red-gate-sql-comparison-sdk) | [Red Gate SQL Comparison SDK] | 2016-02-22 | Red Gate | No | $895 | -| [DLM Automation](#dlm-automation) | [DLM Automation] | ? | Red Gate | No | ? | -| [ReadyRoll](#readyroll) | [ReadyRoll] | 2016-01-03 | Red Gate | No | $345 | -| [SQL XEvent Profiler](#sql-xevent-profiler) | [SQL XEvent Profiler] | 2014-03-14 | Idera | Yes | No | -| [SQL Check](#sql-check) | [SQL Check] | 2015-09-24 | Idera | Yes | No | -| [SQL Fragmentation Analyzer](#sql-fragmentation-analyzer) | [SQL Fragmentation Analyzer] | 2012-11-16 | Idera | Yes | No | -| [SQL Heat Map](#sql-heat-map) | [SQL Heat Map] | 2016-01-27 | Idera | Yes | No | -| [SQL Hekaton Memory Check](#sql-hekaton-memory-check) | [SQL Hekaton Memory Check] | 2015-06-10 | Idera | Yes | No | -| [SQL Page Viewer](#sql-page-viewer) | [SQL Page Viewer] | 2014-08-25 | Idera | Yes | No | -| [SQL Update Statistics](#sql-update-statistics) | [SQL Update Statistics] | 2015-12-14 | Idera | Yes | No | -| [SQL Statistics Aggregator](#sql-statistics-aggregator) | [SQL Statistics Aggregator] | 2015-05-18 | Idera | Yes | No | -| [SQL Backup Status Reporter](#sql-backup-status-reporter) | [SQL Backup Status Reporter] | 2015-08-07 | Idera | Yes | No | -| [SQL Integrity Check](#sql-integrity-check) | [SQL Integrity Check] | 2013-08-26 | Idera | Yes | No | -| [SQL Job Manager](#sql-job-manager) | [SQL Job Manager] | 2012-03-19 | Idera | Yes | No | -| [Azure SQL Database Backup](#azure-sql-database-backup) | [Azure SQL Database Backup] | 2012-10-02 | Idera | Yes | No | -| [SQL Column Search](#sql-column-search) | [SQL Column Search] | 2015-11-17 | Idera | Yes | No | -| [SQL Permissions Extractor](#sql-permissions-extractor) | [SQL Permissions Extractor] | 2015-08-07 | Idera | Yes | No | -| [SQL BI Check](#sql-bi-check) | [SQL BI Check] | 2016-04-13 | Idera | Yes | No | -| [SQL Inventory Check](#sql-inventory-check) | [SQL Inventory Check] | 2016-03-24 | Idera | Yes | No | -| [SQL Diagnostic Manager](#sql-diagnostic-manager) | [SQL Diagnostic Manager] | ? | Idera | No | $1747 | -| [SQL Safe Backup](#sql-safe-backup) | [SQL Safe Backup] | 2016-09-08 | Idera | No | $907 | -| [SQL Compliance Manager](#sql-compliance-manager) | [SQL Compliance Manager] | 2015-09-08 | Idera | No | $2657 | -| [SQL Inventory Manager](#sql-inventory-manager) | [SQL Inventory Manager] | 2016-04-22 | Idera | No | $3195 | -| [SQL Virtual Database](#sql-virtual-database) | [SQL Virtual Database] | 2016-03-24 | Idera | No | $625 | -| [SQL Secure](#sql-secure) | [SQL Secure] | 2016-04-19 | Idera | No | $907 | -| [SQL Doctor](#sql-doctor) | [SQL Doctor] | 2015-12-17 | Idera | No | $625 | -| [SQL Admin Toolset](#sql-admin-toolset) | [SQL Admin Toolset] | 2016-01-13 | Idera | No | $395 | -| [SQL Defrag Manager](#sql-defrag-manager) | [SQL Defrag Manager] | 2016-03-10 | Idera | No | $1495 | -| [DBArtisan](#dbartisan) | [DBArtisan] | ? | Idera | No | $3122 | -| [SQL BI Manager](#sql-bi-manager) | [SQL BI Manager] | 2015-09-08 | Idera | No | $697 | -| [SQL Enterprise Job Manager](#sql-enterprise-job-manager) | [SQL Enterprise Job Manager] | 2015-09-08 | Idera | No | $697 | -| [DB Optimizer](#db-optimizer) | [DB Optimizer] | ? | Idera | No | $1420 | -| [dbForge Schema Compare](#dbforge-schema-compare) | [dbForge Schema Compare] | 2015-12-22 | Devart | No | $149 | -| [dbForge Data Compare](#dbforge-data-compare) | [dbForge Data Compare] | 2015-11-30 | Devart | No | $149 | -| [dbForge Data Generator](#dbforge-data-generator) | [dbForge Data Generator] | 2015-12-30 | Devart | No | $249 | -| [dbForge Query Builder](#dbforge-query-builder) | [dbForge Query Builder] | 2015-06-03 | Devart | No | $100 | -| [dbForge Event Profiler](#dbforge-event-profiler) | [dbForge Event Profiler] | 2015-04-08 | Devart | Yes | No | -| [dbForge SQL Decryptor](#dbforge-sql-decryptor) | [dbForge SQL Decryptor] | 2013-11-07 | Devart | Yes | No | -| [dbForge Studio](#dbforge-studio) | [dbForge Studio] | 2015-12-18 | Devart | Yes | $250 | -| [dbForge Fusion](#dbforge-fusion) | [dbForge Fusion] | 2016-03-03 | Devart | No | $150 | -| [Minion Enterprise](#minion-enterprise) | [Minion Enterprise] | ? | MinionWare | No | $1500 | -| [SQL Server Compression Estimator](#sql-server-compression-estimator) | [SQL Server Compression Estimator] | 2011-06-02 | Bob Tavlor | Yes | No | -| [ClearTrace](#cleartrace) | [ClearTrace] | 2015-07-04 | Bill Graziano | Yes | No | -| [SQLSentry Fragmentation Manager](#sqlsentry-fragmentation-manager) | [SQLSentry Fragmentation Manager] | 2016-03-08 | SQLSentry | No | $795 | -| [SQLSentry Plan Explorer](#sqlsentry-plan-explorer) | [SQLSentry Plan Explorer] | 2016-01-28 | SQLSentry | Yes | $295 | -| [SQLSentry Event Manager](#sqlsentry-event-manager) | [SQLSentry Event Manager] | 2016-03-08 | SQLSentry | No | $995 | -| [SQLSentry Performance Advisor](#sqlsentry-performance-advisor) | [SQLSentry Performance Advisor] | 2016-03-08 | SQLSentry | No | ? | -| [Dell Security Explorer](#dell-security-explorer) | [Dell Security Explorer] | 2015-06-25 | Dell | No | $850 | -| [Dell LiteSpeed for SQL Server](#dell-litespeed-for-sql-server) | [Dell LiteSpeed for SQL Server] | 2015-07-31 | Dell | No | ? | -| [Dell Toad for SQL Server](#dell-toad-for-sql-server) | [Dell Toad for SQL Server] | 2015-05-12 | Dell | No | ? | -| [Dell Spotlight on SQL Server Enterprise](#dell-spotlight) | [Dell Spotlight] | 2016-03-10 | Dell | No | $2561 | -| [Dell Foglight](#dell-foglight) | [Dell Foglight] | 2015-09-22 | Dell | No | ? | -| [SQL Deadlock Detector](#sqlsolutions-sql-deadlock-detector) | [SQLSolutions SQL Deadlock Detector] | 2013-05-16 | SQLSolutions | No | $295 | -| [SQL Heartbeat](#sqlsolutions-sql-heartbeat) | [SQLSolutions SQL Heartbeat] | 2013-03-03 | SQLSolutions | No | $295 | -| [SQL Trace Analyzer](#sqlsolutions-sql-trace-analyzer) | [SQLSolutions SQL Trace Analyzer] | 2013-12-09 | SQLSolutions | No | $495 | -| [SQL Ultimate Debugger](#sqlsolutions-sql-ultimate-debugger) | [SQLSolutions SQL Ultimate Debugger] | - | SQLSolutions | No | $295 | -| [SQLScripter](#sqlscripter) | [SQLScripter] | 2013-02-24 | Thomas Hinsenkamp | No | €99 | -| [Simple Dynamic Scheduler](#simple-dynamic-scheduler) | [Simple Dynamic Scheduler] | 2016-05-02 | Miljan Radovic | Yes | No | -| [ApexSQL Audit](#apexsql-audit) | [ApexSQL Audit] | 2016-04-08 | ApexSQL | No | $1699 | -| [ApexSQL Backup](#apexsql-backup) | [ApexSQL Backup] | 2015-12-30 | ApexSQL | No | $499 | -| [ApexSQL Log](#apexsql-log) | [ApexSQL Log] | 2015-11-23 | ApexSQL | No | $1999 | -| [ApexSQL Monitor](#apexsql-monitor) | [ApexSQL Monitor] | 2015-12-29 | ApexSQL | No | $499 | -| [ApexSQL Recover](#apexsql-recover) | [ApexSQL Recover] | 2015-01-21 | ApexSQL | No | $1999 | -| [ApexSQL Restore](#apexsql-restore) | [ApexSQL Restore] | 2014-08-12 | ApexSQL | No | $399 | -| [ApexSQL Build](#apexsql-build) | [ApexSQL Build] | 2015-12-22 | ApexSQL | No | $399 | -| [ApexSQL Clean](#apexsql-clean) | [ApexSQL Clean] | 2015-09-04 | ApexSQL | No | $399 | -| [ApexSQL Data Diff](#apexsql-data-diff) | [ApexSQL Data Diff] | 2015-12-11 | ApexSQL | No | $399 | -| [ApexSQL Diff](#apexsql-diff) | [ApexSQL Diff] | 2016-03-23 | ApexSQL | No | $399 | -| [ApexSQL Doc](#apexsql-doc) | [ApexSQL Doc] | 2015-04-19 | ApexSQL | No | $299 | -| [ApexSQL Generate](#apexsql-generate) | [ApexSQL Generate] | 2016-03-15 | ApexSQL | No | $499 | -| [ApexSQL Script](#apexsql-script) | [ApexSQL Script] | 2015-09-11 | ApexSQL | No | $249 | -| [ApexSQL Trigger](#apexsql-trigger) | [ApexSQL Trigger] | 2015-09-04 | ApexSQL | No | $1999 | -| [DBBest T-SQL Analyzer](#dbbest-t-sql-analyzer) | [DBBest T-SQL Analyzer] | 2015-03-13 | DBBest | No | $89 | -| [DBBest Database Compare Suite](#dbbest-database-compare-suite) | [DBBest Database Compare Suite] | 2015-09-04 | DBBest | No | $349 | -| [Advanced Query Tool](#advanced-query-tool) | [Advanced Query Tool] | 2015-03-18 | Cardett Associates | No | $180 | -| [SqlDiffFramework](#sqldiffframework) | [SqlDiffFramework] | 2012-04-17 | Michael Sorens | Yes | No | -| [DataGrip](#datagrip) | [DataGrip] | 2016-05-06 | Jet Brains | No | $199 | -| [Pssdiag and Sqldiag Manager](#pssdiag-and-sqldiag-manager) | [Pssdiag and Sqldiag Manager] | 2015-04-17 | Jack Li | Yes | No | -| [SQL Nexus Tool](#sql-nexus-tool) | [SQL Nexus Tool] | 2014-03-11 | Jack Li | Yes | No | -| [DBSophic Qure Profiler](#dbsophic-qure-profiler) | [DBSophic Qure Profiler] | ? | DBSophic | No | $300 | -| [DBSophic Qure Optimizer](#dbsophic-qure-optimizer) | [DBSophic Qure Optimizer] | ? | DBSophic | No | ? | -| [RestoreChecker](#restorechecker) | [RestoreChecker] | 2015-01-15 | SQLServerUtilities | No | $99 | -| [SQLScripter](#sqlscripter) | [SQLScripter] | 2009-08-24 | SQLServerUtilities | No | $99 | -| [SQLC](#sqlc) | [SQLC] | 2016-05-23 | David Ingleton | Yes | No | - - -## bcp Utility -Download page: [Grapbcp Utility]
+Useful free and paid Microsoft SQL Server utilities and tools - complete list of **276** SQL Server Utilities + +Utility types (main purpose), in braces `{}` current counts: + - **[B]**: Backup solutions {6} + - **[BI]**: Business Intelligence Solutions {4} + - **[D]**: Documentation solutions {7} + - **[DA]**: Database Architecture {13} + - **[DC]**: Data compare {12} + - **[ETL]**: Extract Download Load (ETL) Tools {1} + - **[I]**: Internal SQL Server utilities (for example, bcp) {14} + - **[IDX]**: Index manager {2} + - **[G]**: Data generation {4} + - **[J]**: Job managers {3} + - **[M]**: Monitoring and alerting Tools {16} + - **[MG]**: Migration tool {26} + - **[MS]**: Management Studio (alternative for SSMS) {26} + - **[REC]**: Recovery tools {7} + - **[S]**: Search tools {3} + - **[SC]**: Structure compare {18} + - **[T]**: Testing tools {5} + - **[ST]**: Statistics utilities {3} + - **[?]**: Not yet classified {114} + +| Name/Description | Cross Database | Platform | Type | Official/Download page | Release | Author | License | Free version | Price | +|------------------------------------------------------------------|-------------------------------|-----------|----------|---------------------------------------------|------------|-----------------------|------------|----------------|------:| +| [SSMS](#ssms) | No | No | [MS] | [SSMS] | 2018-12-21 | Microsoft | | Yes | No | +| [bcp Utility](#bcp) | No | No | [I] | [bcp Utility] | 2012-02-11 | Microsoft | | Yes | No | +| [sqlcmd Utility](#sqlcmd-utility) | No | No | [I] | [sqlcmd Utility] | 2016-08-23 | Microsoft | | Yes | No | +| [mssql-cli](#mssql-cli) | No | Linux,Mac | [?] | [mssql-cli] | 2018-07-06 | Microsoft | [BSD-3] | Open Source | No | +| [Azure Data Studio](#ads) | No | Linux,Mac | [MS] | [Azure Data Studio] | 2018-12-19 | Microsoft | | Yes | No | +| [RML Utilities for SQL Server](#rml) | No | No | [T] | [RML Utilities for SQL Server] | 2014-12-12 | Microsoft | | Yes | No | +| [GraphView](#graphview) | No | No | [?] | [GraphView] | 2016-02-23 | Microsoft | | Yes | No | +| [Baseline Security Analyze](#baseline-security-analyze) | No | No | [?] | [Baseline Security Analyze] | 2015-01-09 | Microsoft | | Yes | No | +| [tablediff Utility](#tablediff-utility) | No | No | [I] | [tablediff Utility] | - | Microsoft | | Yes | No | +| [Microsoft Log Parser](#microsoft-log-parser) | No | No | [?] | [Microsoft Log Parser] | - | Microsoft | | Yes | No | +| [Log Parser Lizard GUI](#log-parser-lizard-gui) | Oracle,MySQL,PostgreSQL,Other | No | [MS] | [Log Parser Lizard GUI] | 2017-06-01 | Lizard Labs | | Yes | $59 | +| [Diskspd](#diskspd) | No | No | [T] | [Diskspd] | 2015-12-14 | Microsoft | | Yes | No | +| [HammerDB](#hammerdb) | No | No | [T] | [HammerDB] | 2015-05-04 | Open Source | | Yes | No | +| [Exchange Server Error Code Look-up](#error-code-look-up) | No | No | [?] | [Exchange Server Error Code Look-up] | 2004-05-10 | Microsoft | | Yes | No | +| [LINQPad](#linqpad) | No | No | [?] | [LINQPad] | 2016-01-02 | Joseph Albahari | | Non-commercial | $45 | +| [SqlDynamite](#sqldynamite) | No | No | [S] | [SqlDynamite] | 2016-04-06 | Anatoly Sova | | Yes | No | +| [SQL Server Data Tools](#ssdt) | No | No | [MS] | [SQL Server Data Tools] | 2018-04-10 | Microsoft | | Yes | No | +| [Database Health Monitor](#database-health-monitor) | No | No | [M] | [Database Health Monitor] | 2016-03-20 | Steve Stedman | | Yes | No | +| [SchemaDrift](#schemadrift) | No | No | [SC] | [SchemaDrift] | 2016-02-28 | Steve Stedman | | Yes | No | +| [Dbeaver](#dbeaver) | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [MS] | [Dbeaver] | 2018-09-24 | Open Source | | Yes | No | +| [HeidiSQL](#heidisql) | Oracle,MySQL,PostgreSQL,Other | No | [MS] | [HeidiSQL] | 2017-12-19 | Open Source | | Yes | No | +| [SQLExecStats](#sqlexecstats) | No | No | [ST] | [SQLExecStats] | 2016-02-08 | Joe Chang | | Yes | No | +| [ExpressProfiler](#expressprofiler) | No | No | [?] | [ExpressProfiler] | 2016-02-15 | Chris Moore | | Yes | No | +| [Data Migration Assistant](#data-migration-assistant) | No | No | [MG] | [Data Migration Assistant] | 2017-03-15 | Microsoft | | Yes | No | +| [SQL Server Migration Assistant for Sybase](#sybasetosql) | No | No | [MG] | [Migration Assistant for Sybase] | 2017-02-17 | Microsoft | | Yes | No | +| [dta Utility](#dta-utility) | No | No | [I] | [dta Utility] | - | Microsoft | | Yes | No | +| [osql Utility](#osql-utility) | No | No | [I] | [osql Utility] | - | Microsoft | | Yes | No | +| [sqldiag Utility](#sqldiag-utility) | No | No | [I] | [sqldiag Utility] | - | Microsoft | | Yes | No | +| [sqldumper Utility](#sqldumper-utility) | No | No | [I] | [sqldumper Utility] | - | Microsoft | | Yes | No | +| [SqlLocalDB Utility](#sqllocaldb-utility) | No | No | [I] | [SqlLocalDB Utility] | - | Microsoft | | Yes | No | +| [sqllogship Utility](#sqllogship-utility) | No | No | [I] | [sqllogship Utility] | - | Microsoft | | Yes | No | +| [sqlservr Application](#sqlservr-application) | No | No | [I] | [sqlservr Application] | - | Microsoft | | Yes | No | +| [sqlps Utility](#sqlps-utility) | No | No | [I] | [sqlps Utility] | - | Microsoft | | Yes | No | +| [sqlmaint Utility](#sqlmaint-utility) | No | No | [I] | [sqlmaint Utility] | - | Microsoft | | Yes | No | +| [Ssms Utility](#ssms-utility) | No | No | [I] | [Ssms Utility] | - | Microsoft | | Yes | No | +| [dtexec Utility](#dtexec-utility) | No | No | [I] | [dtexec Utility] | - | Microsoft | | Yes | No | +| [SQL Server 2016 Report Builder](#report-builder-2016) | No | No | [?] | [SQL Server 2016 Report Builder] | 2016-09-16 | Microsoft | | Yes | No | +| [SQL Server 2005 Best Practices Analyzer](#bpa-2005) | No | No | [?] | [BPA 2005] | 2008-08-13 | Microsoft | | Yes | No | +| [SQL Server 2000 Best Practices Analyzer](#bpa-2000) | No | No | [?] | [BPA 2000] | 2010-04-26 | Microsoft | | Yes | No | +| [SQL Server 2008 R2 Best Practices Analyzer](#bpa-2008) | No | No | [?] | [BPA 2008] | 2010-06-18 | Microsoft | | Yes | No | +| [SQL Server 2012 Best Practices Analyzer](#bpa-2012) | No | No | [?] | [BPA 2012] | 2012-06-04 | Microsoft | | Yes | No | +| [DLM Dashboard](#dlm-dashboard) | No | No | [M] | [DLM Dashboard] | 2016-04-27 | Red Gate | | Yes | No | +| [Red Gate SQL Compare](#red-gate-sql-compare) | No | No | [DC] | [Red Gate SQL Compare] | 2016-10-31 | Red Gate | | No | $495 | +| [Red Gate SQL Data Compare](#red-gate-sql-data-compare) | No | No | [SC] | [Red Gate SQL Data Compare] | 2016-05-09 | Red Gate | | No | $495 | +| [Red Gate SQL Prompt](#red-gate-sql-prompt) | No | No | [MS] | [Red Gate SQL Prompt] | 2016-04-28 | Red Gate | | No | $369 | +| [Red Gate SQL Monitor](#red-gate-sql-monitor) | No | No | [M] | [Red Gate SQL Monitor] | 2015-10-15 | Red Gate | | No | $1495 | +| [Red Gate SQL Backup Pro](#red-gate-sql-backup-pro) | No | No | [B] | [Red Gate SQL Backup Pro] | 2014-07-08 | Red Gate | | No | $995 | +| [Red Gate SQL Doc](#red-gate-sql-doc) | No | No | [D] | [Red Gate SQL Doc] | 2016-04-26 | Red Gate | | No | $369 | +| [Red Gate SQL Data Generator](#red-gate-sql-data-generator) | No | No | [G] | [Red Gate SQL Data Generator] | 2016-04-26 | Red Gate | | No | $369 | +| [Red Gate SQL Dependency Tracker](#sql-dependency-tracker) | No | No | [?] | [Red Gate SQL Dependency Tracker] | 2016-04-26 | Red Gate | | No | $369 | +| [Red Gate SQL Multi Script](#red-gate-sql-multi-script) | No | No | [?] | [Red Gate SQL Multi Script] | 2016-04-15 | Red Gate | | No | $245 | +| [Red Gate SQL Index Manager](#red-gate-sql-index-manager) | No | No | [IDX] | [Red Gate SQL Index Manager] | ? | Red Gate | | No | $149 | +| [Red Gate SQL Comparison SDK](#red-gate-sql-comparison-sdk) | No | No | [DC],[SC]| [Red Gate SQL Comparison SDK] | 2016-02-22 | Red Gate | | No | $895 | +| [Red Gate SQL Clone](#red-gate-sql-clone) | No | No | [?] | [Red Gate SQL Clone] | 2017-02-27 | Red Gate | | No | $6955 | +| [Red Gate SQL Provision](#red-gate-sql-provision) | No | No | [?] | [Red Gate SQL Provision] | 2018-02-26 | Red Gate | | No | $2955 | +| [Red Gate Data Masker](#red-gate-data-masker) | Oracle | No | [?] | [Red Gate SQL Data Masker] | 2018-02-26 | Red Gate | | No | $2395 | +| [DLM Automation](#dlm-automation) | No | No | [?] | [DLM Automation] | ? | Red Gate | | No | ? | +| [ReadyRoll](#readyroll) | No | No | [?] | [ReadyRoll] | 2016-01-03 | Red Gate | | No | $345 | +| [Rapid Database Extractor](#rapid-database-extractor) | Oracle | No | [?] | [Rapid Database Extractor] | 2016-11-03 | Idera | | Yes | No | +| [SQL XEvent Profiler](#sql-xevent-profiler) | No | No | [?] | [SQL XEvent Profiler] | 2014-03-14 | Idera | | Yes | No | +| [SQL Check](#sql-check) | No | No | [?] | [SQL Check] | 2015-09-24 | Idera | | Yes | No | +| [SQL Fragmentation Analyzer](#sql-fragmentation-analyzer) | No | No | [?] | [SQL Fragmentation Analyzer] | 2012-11-16 | Idera | | Yes | No | +| [SQL Heat Map](#sql-heat-map) | No | No | [?] | [SQL Heat Map] | 2016-01-27 | Idera | | Yes | No | +| [SQL Hekaton Memory Check](#sql-hekaton-memory-check) | No | No | [?] | [SQL Hekaton Memory Check] | 2015-06-10 | Idera | | Yes | No | +| [SQL Page Viewer](#sql-page-viewer) | No | No | [?] | [SQL Page Viewer] | 2014-08-25 | Idera | | Yes | No | +| [SQL Update Statistics](#sql-update-statistics) | No | No | [ST] | [SQL Update Statistics] | 2015-12-14 | Idera | | Yes | No | +| [SQL Statistics Aggregator](#sql-statistics-aggregator) | No | No | [ST] | [SQL Statistics Aggregator] | 2015-05-18 | Idera | | Yes | No | +| [SQL Backup Status Reporter](#sql-backup-status-reporter) | No | No | [B] | [SQL Backup Status Reporter] | 2015-08-07 | Idera | | Yes | No | +| [SQL Integrity Check](#sql-integrity-check) | No | No | [?] | [SQL Integrity Check] | 2013-08-26 | Idera | | Yes | No | +| [SQL Job Manager](#sql-job-manager) | No | No | [J] | [SQL Job Manager] | 2012-03-19 | Idera | | Yes | No | +| [Azure SQL Database Backup](#azure-sql-database-backup) | No | No | [B] | [Azure SQL Database Backup] | 2012-10-02 | Idera | | Yes | No | +| [SQL Column Search](#sql-column-search) | No | No | [S] | [SQL Column Search] | 2015-11-17 | Idera | | Yes | No | +| [SQL Permissions Extractor](#sql-permissions-extractor) | No | No | [?] | [SQL Permissions Extractor] | 2015-08-07 | Idera | | Yes | No | +| [SQL BI Check](#sql-bi-check) | No | No | [BI] | [SQL BI Check] | 2016-04-13 | Idera | | Yes | No | +| [SQL Inventory Check](#sql-inventory-check) | No | No | [?] | [SQL Inventory Check] | 2016-03-24 | Idera | | Yes | No | +| [SQL Diagnostic Manager](#sql-diagnostic-manager) | No | No | [?] | [SQL Diagnostic Manager] | ? | Idera | | No | $1747 | +| [SQL Safe Backup](#sql-safe-backup) | No | No | [B] | [SQL Safe Backup] | 2016-09-08 | Idera | | No | $907 | +| [SQL Compliance Manager](#sql-compliance-manager) | No | No | [?] | [SQL Compliance Manager] | 2015-09-08 | Idera | | No | $2657 | +| [SQL Inventory Manager](#sql-inventory-manager) | No | No | [?] | [SQL Inventory Manager] | 2016-04-22 | Idera | | No | $3195 | +| [SQL Virtual Database](#sql-virtual-database) | No | No | [?] | [SQL Virtual Database] | 2016-03-24 | Idera | | No | $625 | +| [SQL Secure](#sql-secure) | No | No | [?] | [SQL Secure] | 2016-04-19 | Idera | | No | $907 | +| [SQL Doctor](#sql-doctor) | No | No | [?] | [SQL Doctor] | 2015-12-17 | Idera | | No | $625 | +| [SQL Admin Toolset](#sql-admin-toolset) | No | No | [?] | [SQL Admin Toolset] | 2016-01-13 | Idera | | No | $395 | +| [SQL Defrag Manager](#sql-defrag-manager) | No | No | [?] | [SQL Defrag Manager] | 2016-03-10 | Idera | | No | $1495 | +| [DBArtisan](#dbartisan) | No | No | [?] | [DBArtisan] | ? | Idera | | No | $3122 | +| [SQL BI Manager](#sql-bi-manager) | No | No | [BI] | [SQL BI Manager] | 2015-09-08 | Idera | | No | $697 | +| [SQL Enterprise Job Manager](#sql-enterprise-job-manager) | No | No | [J] | [SQL Enterprise Job Manager] | 2015-09-08 | Idera | | No | $697 | +| [DB Optimizer](#db-optimizer) | No | No | [?] | [DB Optimizer] | ? | Idera | | No | $1420 | +| [SQL Query Store Optimizer](#sql-query-store-optimizer) | No | No | [?] | [SQL Query Store Optimizer] | 2016-07-01 | Idera | | Yes | No | +| [Rapid SQL](#rapid-sql) | Oracle,MySQL,PostgreSQL,Other | No | [MS] | [Rapid SQL] | ? | Idera | | No | $710 | +| [SQL Comparison Toolset](#sql-comparison-toolset) | No | No | [DC],[SC]| [SQL Comparison Toolset] | ? | Idera | | No | $745 | +| [ER/Studio Data Architect](#erstudio-data-architect) | Oracle,MySQL,PostgreSQL,Other | No | [DA] | [ER/Studio Data Architect] | | Idera | | No | $1287 | +| [DB Change Manager](#db-change-manager) | Oracle,MySQL,PostgreSQL,Other | No | [SC] | [DB Change Manager] | ? | Idera | | No | $1420 | +| [Uptime Infrastructure Monitor](#uim) | No | Linux | [?] | [Uptime Infrastructure Monitor] | ? | Idera | | No | ? | +| [dbForge Schema Compare](#dbforge-schema-compare) | No | No | [SC] | [dbForge Schema Compare] | 2018-12-21 | Devart | Shareware | No | $150 | +| [dbForge Data Compare](#dbforge-data-compare) | No | No | [DC] | [dbForge Data Compare] | 2018-12-21 | Devart | Shareware | No | $150 | +| [dbForge Data Generator](#dbforge-data-generator) | No | No | [G] | [dbForge Data Generator] | 2018-12-21 | Devart | Shareware | No | $250 | +| [dbForge Query Builder](#dbforge-query-builder) | No | No | [?] | [dbForge Query Builder] | 2018-12-21 | Devart | Shareware | No | $100 | +| [dbForge Event Profiler](#dbforge-event-profiler) | No | No | [M] | [dbForge Event Profiler] | 2018-12-21 | Devart | Freeware | Yes | No | +| [dbForge SQL Decryptor](#dbforge-sql-decryptor) | No | No | [?] | [dbForge SQL Decryptor] | 2018-12-21 | Devart | Freeware | Yes | No | +| [dbForge Studio](#dbforge-studio) | No | No | [MS] | [dbForge Studio] | 2018-12-21 | Devart | Shareware | Yes | $250 | +| [dbForge Fusion](#dbforge-fusion) | No | No | [?] | [dbForge Fusion] | 2018-12-21 | Devart | Shareware | No | $150 | +| [dbForge Documenter](#dbforge-documenter) | No | No | [D] | [dbForge Documenter] | 2018-12-21 | Devart | Shareware | No | $150 | +| [Devart Excel Add-in for SQL Server](#devart-excel-addin) | No | No | [?] | [Devart Excel Add-in for SQL Server] | 2017-09-13 | Devart | Shareware | No | $100 | +| [dbMonitor](#dbmonitor) | Oracle,MySQL,PostgreSQL,Other | No | [M] | [dbMonitor] | 2012-11-01 | Devart | Freeware | Yes | No | +| [Minion Enterprise](#minion-enterprise) | No | No | [?] | [Minion Enterprise] | ? | MinionWare | | No | $1500 | +| [SQL Server Compression Estimator](#compression-estimator) | No | No | [?] | [SQL Server Compression Estimator] | 2011-06-02 | Bob Tavlor | | Yes | No | +| [ClearTrace](#cleartrace) | No | No | [?] | [ClearTrace] | 2016-07-07 | Bill Graziano | | Yes | No | +| [Dell Security Explorer](#dell-security-explorer) | No | No | [?] | [Dell Security Explorer] | 2015-06-25 | Dell | | No | $850 | +| [Dell LiteSpeed for SQL Server](#dell-litespeed-for-sql-server) | No | No | [?] | [Dell LiteSpeed for SQL Server] | 2015-07-31 | Dell | | No | ? | +| [Dell Toad for SQL Server](#dell-toad-for-sql-server) | No | No | [MS] | [Dell Toad for SQL Server] | 2015-05-12 | Dell | | No | ? | +| [Dell Spotlight on SQL Server Enterprise](#dell-spotlight) | No | No | [?] | [Dell Spotlight] | 2016-03-10 | Dell | | No | $2561 | +| [Dell Foglight](#dell-foglight) | No | No | [?] | [Dell Foglight] | 2015-09-22 | Dell | | No | ? | +| [Dell Discovery Wizard](#dell-discovery-wizard) | No | No | [?] | [Dell Discovery Wizard] | 2011-09-22 | Dell | | Yes | No | +| [Dell Enterprise Reporter](#dell-enterprise-reporter) | No | No | [?] | [Dell Enterprise Reporter] | ? | Dell | | No | $511 | +| [SQL Scripter](#sql-scripter) | No | No | [?] | [SQL Scripter] | 2013-02-24 | Thomas Hinsenkamp | | No | €99 | +| [Simple Dynamic Scheduler](#simple-dynamic-scheduler) | No | No | [?] | [Simple Dynamic Scheduler] | 2016-05-02 | Miljan Radovic | | Yes | No | +| [ApexSQL Audit](#apexsql-audit) | No | No | [?] | [ApexSQL Audit] | 2017-07-11 | ApexSQL | | No | $1699 | +| [ApexSQL Backup](#apexsql-backup) | No | No | [B] | [ApexSQL Backup] | 2017-10-12 | ApexSQL | | No | $499 | +| [ApexSQL Defrag](#apexsql-defrag) | No | No | [IDX] | [ApexSQL Defrag] | 2017-06-29 | ApexSQL | | No | $499 | +| [ApexSQL Log](#apexsql-log) | No | No | [?] | [ApexSQL Log] | 2017-05-24 | ApexSQL | | No | $1999 | +| [ApexSQL Monitor](#apexsql-monitor) | No | No | [M] | [ApexSQL Monitor] | 2017-10-05 | ApexSQL | | No | $499 | +| [ApexSQL Plan](#apexsql-plan) | No | No | [?] | [ApexSQL Plan] | 2018-04-05 | ApexSQL | | Yes | No | +| [ApexSQL Propagate](#apexsql-propagate) | No | No | [?] | [ApexSQL Propagate] | 2017-09-25 | ApexSQL | | Yes | No | +| [ApexSQL Recover](#apexsql-recover) | No | No | [REC] | [ApexSQL Recover] | 2017-10-26 | ApexSQL | | No | $1999 | +| [ApexSQL Build](#apexsql-build) | No | No | [?] | [ApexSQL Build] | 2017-05-15 | ApexSQL | | No | $399 | +| [ApexSQL Clean](#apexsql-clean) | No | No | [?] | [ApexSQL Clean] | 2017-09-28 | ApexSQL | | No | $399 | +| [ApexSQL Data Diff](#apexsql-data-diff) | No | No | [DC] | [ApexSQL Data Diff] | 2017-10-26 | ApexSQL | | No | $399 | +| [ApexSQL Decrypt](#apexsql-decrypt) | No | No | [?] | [ApexSQL Decrypt] | 2017-08-16 | ApexSQL | | Yes | No | +| [ApexSQL Diff](#apexsql-diff) | No | No | [SC] | [ApexSQL Diff] | 2017-10-26 | ApexSQL | | No | $399 | +| [ApexSQL Doc](#apexsql-doc) | No | No | [D] | [ApexSQL Doc] | 2017-09-06 | ApexSQL | | No | $299 | +| [ApexSQL Generate](#apexsql-generate) | No | No | [G] | [ApexSQL Generate] | 2017-07-13 | ApexSQL | | No | $499 | +| [ApexSQL Script](#apexsql-script) | No | No | [?] | [ApexSQL Script] | 2016-05-10 | ApexSQL | | No | $249 | +| [ApexSQL Trigger](#apexsql-trigger) | No | No | [?] | [ApexSQL Trigger] | 2017-06-01 | ApexSQL | | No | $1999 | +| [ApexSQL Trigger Veiwer](#apexsql-trigger-viewer) | No | No | [?] | [ApexSQL Trigger Viewer] | 2017-06-01 | ApexSQL | | Yes | No | +| [ApexSQL Snapshot Utility](#apexsql-snapshot-utility) | No | No | [?] | [ApexSQL Snapshot Utility] | 2016-01-12 | ApexSQL | | Yes | No | +| [ApexSQL Model](#apexsql-model) | No | No | [DA] | [ApexSQL Model] | 2018-09-10 | ApexSQL | | No | $399 | +| [ApexSQL Analyze](#apexsql-analyze) | No | No | [?] | [ApexSQL Analyze] | 2017-12-13 | ApexSQL | | No | $299 | +| [ApexSQL BI Monitor](#apexsql-bi-monitor) | No | No | [BI],[M] | [ApexSQL BI Monitor] | 2018-05-18 | ApexSQL | | No | $499 | +| [ApexSQL VM Monitor](#apexsql-vm-monitor) | No | No | [M] | [ApexSQL VM Monitor] | 2018-05-09 | ApexSQL | | No | $999 | +| [ApexSQL Job](#apexsql-job) | No | No | [J] | [ApexSQL Job] | 2018-03-29 | ApexSQL | | No | $499 | +| [ApexSQL Enforce](#apexsqlL-enforce) | No | No | [?] | [ApexSQL Enforce] | 2018-07-19 | ApexSQL | | No | $299 | +| [DBBest T-SQL Analyzer](#dbbest-t-sql-analyzer) | No | No | [?] | [DBBest T-SQL Analyzer] | 2015-03-13 | DBBest | | No | $89 | +| [DBBest Database Compare Suite](#dbbest-database-compare-suite) | No | No | [SC],[DC]| [DBBest Database Compare Suite] | 2015-09-04 | DBBest | | No | $349 | +| [Advanced Query Tool](#advanced-query-tool) | No | No | [?] | [Advanced Query Tool] | 2015-03-18 | Cardett Associates | | No | $180 | +| [SqlDiffFramework](#sqldiffframework) | No | No | [SC] | [SqlDiffFramework] | 2012-04-17 | Michael Sorens | | Yes | No | +| [DataGrip](#datagrip) | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [MS] | [DataGrip] | 2017-02-21 | Jet Brains | | No | $89 | +| [Pssdiag and Sqldiag Manager](#pssdiag-and-sqldiag-manager) | No | No | [?] | [Pssdiag and Sqldiag Manager] | 2017-01-06 | Jack Li | | Yes | No | +| [SQL Nexus Tool](#sql-nexus-tool) | No | No | [?] | [SQL Nexus Tool] | 2016-11-20 | Jack Li | | Yes | No | +| [DBSophic Qure Profiler](#dbsophic-qure-profiler) | No | No | [?] | [DBSophic Qure Profiler] | ? | DBSophic | | No | $300 | +| [DBSophic Qure Optimizer](#dbsophic-qure-optimizer) | No | No | [?] | [DBSophic Qure Optimizer] | ? | DBSophic | | No | ? | +| [RestoreChecker](#restorechecker) | No | No | [?] | [RestoreChecker] | 2015-01-15 | SQLServerUtilities | | No | $99 | +| [SQLScripter](#sqlscripter) | No | No | [?] | [SQLScripter] | 2009-08-24 | SQLServerUtilities | | No | $99 | +| [SQLC](#sqlc) | No | No | [DC],[SC]| [SQLC] | 2017-11-19 | David Ingleton | | Yes | No | +| [Database Performance Analyzer](#dpa-solarwinds) | Oracle, MySQL, Other | Linux | [M] | [Database Performance Analyzer] | ? | SolarWinds | | No | $1995 | +| [Database Performance Analyzer for MSSQL](#dpa-solarwinds-mssql) | No | No | [M] | [Database Performance Analyzer for MSSQL] | ? | SolarWinds | | No | $1995 | +| [SQL Enlight](#sql-enlight) | No | No | [MS] | [SQL Enlight] | 2016-04-25 | UbitSoft | | No | $295 | +| [Aireforge Studio](#aireforge-studio) | No | No | [MG],[SC]| [Aireforge Studio] | 2017-06-21 | AireForge | | Yes | $299 | +| [HexaTier](#hexatier) | No | No | [?] | [HexaTier] | ? | HexaTier | | No | ? | +| [SoftTree SQL Assistant](#softtree-sql-assistant) | Oracle,MySQL,PostgreSQL,Other | No | [MS] | [SoftTree SQL Assistant] | 2017-12-17 | SoftTree | | No | $215 | +| [DB Audit and Security 360](#db-audit-and-security-360) | Oracle,MySQL,Other | No | [?] | [DB Audit and Security 360] | 2015-02-07 | SoftTree | | No | $499 | +| [EMS SQL Management Studio](#ems-management-studio) | No | No | [MS] | [EMS SQL Management Studio] | 2016-05-26 | EMS | | No | $257 | +| [EMS SQL Backup](#ems-sql-backup) | No | No | [B] | [EMS SQL Backup] | 2016-04-13 | EMS | | Yes | $82 | +| [EMS SQL Administrator](#ems-sql-administrator) | No | No | [?] | [EMS SQL Administrator] | 2015-04-14 | EMS | | Yes | $135 | +| [EMS SQL Manager](#ems-sql-manager) | No | No | [?] | [EMS SQL Manager] | 2016-05-26 | EMS | | Yes | $135 | +| [EMS Data Export](#ems-data-export) | No | No | [?] | [EMS Data Export] | 2016-04-29 | EMS | | No | $47 | +| [EMS Data Import](#ems-data-import) | No | No | [?] | [EMS Data Import] | 2016-04-14 | EMS | | No | $47 | +| [EMS Data Pump](#ems-data-pump) | No | No | [?] | [EMS Data Pump] | 2016-11-03 | EMS | | No | $47 | +| [EMS Data Generator](#ems-generator) | No | No | [G] | [EMS Data Generator] | 2010-07-10 | EMS | | No | $47 | +| [EMS DB Comparer](#ems-bd-comparer) | No | No | [SC] | [EMS DB Comparer] | 2015-07-24 | EMS | | No | $47 | +| [EMS DB Extract](#ems-bd-extract) | No | No | [?] | [EMS DB Extract] | 2008-10-16 | EMS | | No | $47 | +| [EMS SQL Query](#ems-sql-query) | No | No | [?] | [EMS SQL Query] | 2012-03-29 | EMS | | No | $47 | +| [EMS Data Comparer](#ems-data-comparer) | No | No | [DC] | [EMS Data Comparer] | 2012-11-16 | EMS | | No | $47 | +| [NitroAccelerator](#nitroaccelerator) | No | No | [?] | [NitroAccelerator] | 2016-07-10 | Nitrosphere | | No | $1265 | +| [ERwin Data Modeler](#erwin-data-modeler) | Oracle,MySQL,PostgreSQL,Other | No | [DA] | [ERwin Data Modeler] | 2016-06-03 | ERwin | | No | $810 | +| [Toad Data Modeler](#toad-data-modeler) | Oracle,MySQL,PostgreSQL,Other | No | [DA] | [Toad Data Modeler] | 2016-06-16 | Dell | | No | $562 | +| [SQL Power Architect](#sql-power-architect) | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [DA] | [SQL Power Architect] | 2016-02-11 | SQLPower | | Yes | $995 | +| [DbWrench](#dbwrench) | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [DA] | [DbWrench] | 2016-07-06 | Nizana Systems | | No | $99 | +| [Navicat Data Modeler](#navicat-data-modeler) | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [DA] | [Navicat Data Modeler] | 2016-08-01 | PremiumSoft | | No | $199 | +| [DeZign for Databases](#dezign-for-databases) | Oracle,MySQL,PostgreSQL,Other | No | [DA] | [DeZign for Databases] | 2016-04-25 | Datanamic | | No | $259 | +| [ERDesigner NG](#erdesigner-ng) | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [DA] | [ERDesigner NG] | 2013-04-10 | Mirko Sertic | | Open Source | No | +| [Vertabelo](#vertabelo) | Oracle,MySQL,PostgreSQL,Other | Online | [DA] | [Vertabelo] | ? | Vertabelo | | No | $948 | +| [dbDiffo](#dbdiffo) | Oracle,MySQL,PostgreSQL,Other | Online | [DA] | [dbDiffo] | ? | Contenet Ltd | | Yes | No | +| [SQL DXP](#sql-dxp) | Oracle,MySQL | No | [DC],[SC]| [SQL DXP] | 2016-06-20 | SQL Delta | | No | $530 | +| [Aqua Data Studio](#aqua-data-studio) | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [MS] | [Aqua Data Studio] | 2016-07-06 | AquaFold | | No | $499 | +| [RazorSQL](#razorsql) | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [MS] | [RazorSQL] | 2016-09-29 | Richardson Software | | No | $100 | +| [SQL Pretty Printer](#sql-pretty-printer) | No | No | [?] | [SQL Pretty Printer] | 2016-02-19 | Gudu Software | | No | $50 | +| [Database .NET](#database-net) | Oracle,MySQL,PostgreSQL,Other | No | [MS],[SC]| [Database .NET] | 2018-08-20 | fish's dotNET | | Non-commercial | $69 | +| [dbMigration .NET](#dbmegration-net) | Oracle,MySQL,PostgreSQL,Other | No | [DC],[SC]| [dbMigration .NET] | 2018-08-20 | fish's dotNET | | Non-commercial | $49 | +| [Is It SQL](#is-it-sql) | No | No | [M] | [Is It SQL] | 2017-04-06 | Bill Graziano | | Non-commercial | No | +| [Database Experimentation Assistant Technical Preview 2](#dea) | No | No | [T] | [Database Experimentation Assistant] | 2017-03-24 | Microsoft | | Yes | No | +| [Data Platform Studio](#dps) | No | No | [MG] | [Data Platform Studio] | ? | Red Gate Software | | Yes | ? | +| [Flyway](#flyway) | Oracle,MySQL,PostgreSQL,Other | No | [MG] | [Flyway] | 2018-01-30 | boxfuse | [Apache] | Open Source | $950 | +| [Liquibase](#liquibase) | Oracle,MySQL,PostgreSQL,Other | No | [MG] | [Liquibase] | 2018-04-11 | Liquibase | [Apache] | Open Source | No | +| [My Batis](#my-batis) | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [MG] | [My Batis] | 2018-03-20 | My Batis | [Apache] | Open Source | No | +| [SentryOne Plan Explorer](#sentryone-plan-explorer) | No | No | [?] | [SentryOne Plan Explorer] | 2017-05-25 | SentryOne | | Yes | No | +| [SQL Sentry](#sql-sentry) | No | No | [M] | [SQL Sentry] | 2016-12-07 | SentryOne | | No | ? | +| [DBmaestro TeamWork](#dbmaestro-teamwork) | Oracle | No | [?] | [DBmaestro TeamWork] | ? | DBmaestro | | No | ? | +| [xSQL Schema Compare](#xsql-schema-compare) | No | No | [SC] | [xSQL Schema Compare] | 2017-03-01 | xSQL Software | Shareware | Yes | $399 | +| [xSQL Data Compare](#xsql-data-compare) | No | No | [DK] | [xSQL Data Compare] | 2017-06-26 | xSQL Software | Shareware | Yes | $399 | +| [xSQL Script Executor](#xsql-script-executor) | MySQL,DB2,SQL Server CE | No | [?] | [xSQL Script Executor] | 2015-02-25 | xSQL Software | Freeware | Yes | $249 | +| [xSQL Builder](#xsql-builder) | No | No | [?] | [xSQL Builder] | 2017-03-15 | xSQL Software | Shareware | No | $799 | +| [xSQL Documenter](#xsql-documenter) | Oracle,MySQL,SQLite,Other | No | [D] | [xSQL Documenter] | 2017-01-04 | xSQL Software | Shareware | No | $199 | +| [xSQL Profiler](#xsql-profiler) | No | No | [?] | [xSQL Profiler] | 2017-06-28 | xSQL Software | Shareware | Yes | $999 | +| [xSQL Schema Compare SDK](#xsql-schema-compare-sdk) | No | No | [SC] | [xSQL Schema Compare SDK] | 2017-10-25 | xSQL Software | Shareware | No | $1499 | +| [xSQL RSS Reporter](#xsql-rss-reporter) | No | No | [D] | [xSQL RSS Reporter] | 2014-11-25 | xSQL Software | Shareware | No | $169 | +| [xSQL Database Searcher](#xsql-database-sercher) | No | No | [S] | [xSQL Database Searcher] | 2017-05-09 | xSQL Software | Freeware | Yes | No | +| [Cloud-based DB Monitoring Platform](#cbmp) | No | Mobile | [M] | [Cloud-based DB Monitoring Platform] | ? | SQLTreeo | | No | €180 | +| [SchemaCrawler](#schema-crawler) | Oracle,MySQL,PostgreSQL,Other | Yes | [D],[SC] | [SchemaCrawler] | 2017-02-27 | Sualeh Fatehi | | Open Source | No | +| [SA MaaS Microsoft SQL Server](#sa-maas) | No | No | [M] | [SA MaaS Microsoft SQL Server] | ? | SENTINELAGENT | | No | ? | +| [CatCompare v2](#cat-compare) | No | No | [?] | [CatCompare v2] | 2017-01-07 | Andy Leonard | | No | $295 | +| [SSIS Catalog Compare v2.0 Bundle](#catalog-compare-bundle) | No | No | [?] | [SSIS Catalog Compare v2.0 Bundle] | 2017-01-06 | Andy Leonard | | No | $495 | +| [MS Kerberos Configuration Manager](#mkcm) | No | No | [?] | [MS Kerberos Configuration Manager] | 2017-01-31 | Microsoft | | Yes | No | +| [Spotlight](#spotlight) | No | No | [M] | [Spotlight] | ? | Quest Software | | Yes | ? | +| [DBConvert Studio](#dbconvert-studio) | Oracle,MySQL,PostgreSQL,Other | No | [MG] | [DBConvert Studio] | 2017-03-01 | DMSoft Technologies | | No | $499 | +| [DbDefence](#dbdefence) | No | No | [?] | [DbDefence] | 2017-03-01 | ActiveCrypt Software | | Yes | $698 | +| [SQL Server Migration Assistant for MySQL](#ssma-mysql) | MySQL | No | [MG] | [SQL Server Migration Assistant for MySQL] | 2017-02-17 | Microsoft | | Yes | No | +| [sqlcmd for Mac and Linux](#sqlcmd) | No | Linux,Mac | [?] | [sqlcmd for Mac and Linux] | 2017-01-26 | Soheil Rashidi | | Open Source | No | +| [SQL Migrator](#sql-migrator) | No | No | [MG] | [SQL Migrator] | ? | Datamate Technology | | ? | ? | +| [MS FoxPro to MS SQL Migration and Sync](#foxpro-sqlserver) | No | No | [MG] | [MS FoxPro to MS SQL Migration and Sync] | 2013-10-08 | DMSoft Technologies | | No | $149 | +| [MySQL to MS SQL Migration and Sync](#mysql-sqlserver) | No | No | [MG] | [MySQL to MS SQL Migration and Sync] | 2013-10-08 | DMSoft Technologies | | No | $149 | +| [Oracle to MS SQL Migration and Sync](#oracle-sqlserver) | No | No | [MG] | [Oracle to MS SQL Migration and Sync] | 2013-10-09 | DMSoft Technologies | | No | $149 | +| [PostgreSQL to MS SQL Migration and Sync](#postgresql-sqlserver) | No | No | [MG] | [PostgreSQL to MS SQL Migration and Sync] | 2013-10-08 | DMSoft Technologies | | No | $149 | +| [MS Excel to MS SQL Migration](#msexcel-sqlserver) | No | No | [MG] | [MS Excel to MS SQL Migration] | 2013-09-23 | DMSoft Technologies | | No | $149 | +| [SQLite to MS SQL Migration and Sync](#sqllite-sqlserver) | No | No | [MG] | [SQLite to MS SQL Migration and Sync] | 2014-05-08 | DMSoft Technologies | | No | $149 | +| [IBM DB2 to MS SQL Migration and Sync](#db2-sqlserver) | No | No | [MG] | [IBM DB2 to MS SQL Migration and Sync] | 2013-09-09 | DMSoft Technologies | | No | $149 | +| [MS Access to MS SQL Migration and Sync](#access-sqlserver) | No | No | [MG] | [MS Access to MS SQL Migration and Sync] | 2013-10-08 | DMSoft Technologies | | No | $149 | +| [Firebird to MS SQL Migration and Sync](#firebird-sqlserver) | No | No | [MG] | [Firebird to MS SQL Migration and Sync] | 2013-09-11 | DMSoft Technologies | | No | $149 | +| [SQLines SQL Converter](#sqllines-converter) | No | No | [MG] | [SQLines SQL Converter] | ? | Dmtolpeko | | Open Source | No | +| [SQLite & SQL Server Compact Toolbox](#sqlite-sqlserver-toolbox) | No | No | [?] | [SQLite & SQL Server Compact Toolbox] | ? | ErikEJ | | Open Source | No | +| [SqlPad](#sqlpad) | Postgres,MySQL,Crate,Vertica | No | [MS] | [SqlPad] | ? | Rickbergfalk | | Open Source | No | +| [Html-query-plan](#html-query-plan) | No | No | [?] | [Html-query-plan] | ? | JustinPealing | | Open Source | No | +| [SqlQueryStress](#sql-query-stress) | No | No | [?] | [SqlQueryStress] | ? | Adam Machanic | | Open Source | No | +| [SQL Server Migration Assistant for DB2](#ssma-db2) | DB2 | No | [MG] | [SQL Server Migration Assistant for DB2] | 2017-02-17 | Microsoft | | Yes | No | +| [SQL Server Migration Assistant for Oracle](#ssma-oracle) | Oracle | No | [MG] | [SQL Server Migration Assistant for Oracle] | 2017-02-17 | Microsoft | | Yes | No | +| [SQL Server Migration Assistant for Access](#ssma-access) | Access | No | [MG] | [SQL Server Migration Assistant for Access] | 2017-02-17 | Microsoft | | Yes | No | +| [mssql for Visual Studio Code](#mssql-for-vs-code) | No | Linux,Mac | [MS] | [mssql for Visual Studio Code] | 2017-05-02 | Microsoft | | Open Source | No | +| [Microsoft Assessment and Planning](#map) | No | No | [?] | [Microsoft Assessment and Planning] | 2017-02-10 | Microsoft | | Yes | No | +| [mssql-scripter](#mssql-scripter) | No | Linux,Mac | [?] | [mssql-scripter] | ? | Microsoft | | Open Source | No | +| [DBFS](#dbfs) | No | Linux | [M] | [DBFS] | ? | Microsoft | | Open Source | No | +| [comparator](#pumpet-comparator) | Oracle,MySQL,PostgreSQL,Other | No | [DC] | [comparator] | 2017-06-06 | Pumpet | [LGPL-3.0] | Open Source | No | +| [Navicat for SQL Server](#navicat-for-sql-server) | No | Mac | [MS] | [Navicat for SQL Server] | 2017-06-14 | PremiumSoft | | No | $699 | +| [Navicat Premium](#navicat-premium) | Oracle,MySQL,PostgreSQL,Other | Mac | [MS] | [Navicat Premium] | 2017-06-14 | PremiumSoft | | No | $1299 | +| [DbVisualizer](#dbvisualizer) | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [MS],[DA]| [DbVisualizer] | 2017-08-22 | DbVis Software AB. | | Yes | $197 | +| [DbSchema](#dbschema) | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [DA] | [DbSchema] | 2017-06-19 | Wise Coders Solutions | | Yes | $127 | +| [DBGhost](#dbghost) | No | No | [?] | [DBGhost] | 2017-01-31 | Innovartis Ltd | | No | £430 | +| [SQLAutomate](#sqlautomate) | Oracle,MySQL,Other | No | [?] | [SQLAutomate] | 2017-06-19 | OnLine ToolWorks     | | No | $99 | +| [BimlExpress](#bimlexpress) | No | No | [?] | [BimlExpress] | ? | Varigence   | | No | No | +| [BIDS Helper](#bidshelper) | No | No | [?] | [BIDS Helper] | 2015-03-17 | Microsoft   | | Open Source | No | +| [Azure Data Warehouse Migration Utility](#azure-migration) | No | No | [MG] | [Azure Data Warehouse Migration Utility] | ? | Microsoft | | ? | ? | +| [Dell Benchmark Factory](#dell-benchmark-factory) | Oracle,MySQL,Other | No | [T] | [Dell Benchmark Factory] | ? | Quest Software | | No | $4413 | +| [manduka](#maduka) | Oracle | Linux,Mac | [?] | [manduka] | 2017-03-08 | Virtusa Corporation | | Yes | No | +| [PowerBI Desktop](#powerbi-desktop) | Oracle,MySQL,PostgreSQL,Other | No | [BI] | [PowerBI Desktop] | 2017-07-11 | Microsoft | | Yes | ? | +| [Stellar Phoenix SQL Database Repair](#stellar-phoenix) | No | No | [REC] | [Stellar Phoenix SQL Database Repair] | 2017-07-05 | Stellar Technology | | No | $349 | +| [DataNumen SQL Recovery](#datanumen-sql-recovery) | No | No | [REC] | [DataNumen SQL Recovery] | 2017-03-20 | DataNumen | | No | $500 | +| [Recovery Toolbox for SQL Server](#recovery-toolbox) | No | No | [REC] | [Recovery Toolbox for SQL Server] | ? | Recovery Toolbox | Shareware | No | $99 | +| [SQL MDF Viewer](#sql-mdf-viewer) | No | No | [?] | [SQL MDF Viewer] | ? | SysTools | Shareware | No | $129 | +| [SQL MDF Recovery Tool](#sql-mdf-recovery-tool) | No | No | [REC] | [SQL MDF Recovery Tool] | ? | SysTools | Shareware | No | $129 | +| [SQL Passord Recovery](#sql-password-recovery) | No | No | [REC] | [SQL Passord Recovery] | ? | SysTools | Shareware | No | $69 | +| [SQL Decryptor](#sql-decryptor) | No | No | [?] | [SQL Decryptor] | ? | SysTools | Shareware | No | $69 | +| [SQL Backup Database Recovery](#sql-backup-database-recovery) | No | No | [REC] | [SQL Backup Database Recovery] | ? | SysTools | Shareware | No | $149 | +| [SQL Log File Viewer](#sql-log-file-viewer) | No | No | [?] | [SQL Log File Viewer] | ? | SysTools | Shareware | No | $999 | +| [DAX Studio](#dax-studio) | No | No | [?] | [DAX Studio] | ? | Sqlbi | Freeware | Yes | No | +| [SQL Cop](#sql-cop) | No | No | [?] | [SQL Cop] | ? | LessThanDot | Freeware | Yes | No | +| [Dataedo](#dataedo) | Oracle,MySQL | No | [D] | [Dataedo] | 2017-09-15 | Logic Systems | Shareware | Yes | $239 | +| [Azure Database Migration Service](#azure-db-migration) | Oracle,MySQL, Other | Online | [MG] | [Azure Database Migration Service] | 2017-12-01 | Microsoft | | Yes | No | +| [FlowHeater](#flowheater) | Oracle,MySQL,PostgreSQL,Other | No | [ETL] | [FlowHeater] | 2017-10-02 | FlowHeater GmbH | Shareware | No | $79 | +| [EDIS](#edis) | No | No | [ETL] | [EDIS] | ? | SQL ETL | Shareware | Yes | $599 | +| [SchemaSpy](#schemaspy) | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [D] | [SchemaSpy] | 2018-08-05 | Rafal Kasa | [MIT] | Open Source | No | +| [Adminer](#adminer) | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [MS] | [Adminer] | 2018-02-20 | Jakub Vrána | [Apache] | Open Source | No | +| [Full Convert](#full-convert) | Oracle,MySQL,PostgreSQL,Other | No | [MG] | [Full Convert] | 2018-08-20 | Spectral Core | Shareware | Yes | $699 | +| [Replicator](#replicator) | Oracle,MySQL,PostgreSQL,Other | No | [DC] | [Replicator] | 2018-08-20 | Spectral Core | Shareware | Yes | $699 | +| [JackDB](#jackdb) | Oracle,MySQL,PostgreSQL,Other | Online | [MS] | [JackDB] | ? | JackDB | | No | $48 | +| [SQL Workbench](#sql-workbench) | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [MS] | [SQL Workbench] | 2018-08-20 | Thomas Kellerer | | Yes | No | +| [Valentina Studio](#valentina-studio) | MySQL,PostgreSQL,Other | Linux,Mac | [MS] | [Valentina Studio] | 2018-09-24 | Paradigma Software | | Yes | $200 | +| [SQL Plus Dot Net](#sql-plus-dot-net) | No | No | [?] | [SQL Plus Dot Net] | ? | SQL+.NET | | No | ? | + + + +## SSMS +Download page: [SSMS]
+Release date: 2018-12-21
+Support Version: 2005-2019/Azure
+Author: Microsoft
+Free version: Yes
+Price: No + +SQL Server Management Studio (SSMS) is an integrated environment for accessing, configuring, managing, administering, and developing all components of SQL Server. +SSMS combines a broad group of graphical tools with a number of rich script editors to provide developers and administrators of all skill levels access to SQL Server. +This release features improved compatibility with previous versions of SQL Server, a stand-alone web installer, and toast notifications within SSMS when new releases become available. + + + +## bcp Utility +Download page: [bcp Utility]
Release date: 2012-02-11
Support Version: 2008/2012/2014/2016
Author: Microsoft
@@ -144,7 +331,82 @@ Except when used with the queryout option, the utility requires no knowledge of To import data into a table, you must either use a format file created for that table or understand the structure of the table and the types of data that are valid for its columns. -## GraphView + +## sqlcmd Utility +Download page: [sqlcmd Utility]
+Release date: 2016-08-23
+Support Version: 2008-2017/Azure
+Author: Microsoft
+Free version: Yes
+Price: No + +The SQLCMD utility allows users to connect to, send Transact-SQL batches from, and output rowset information from SQL Server instances. +The bcp utility bulk copies data between an instance of Microsoft SQL Server and a data file in a user-specified format. +The bcp utility can be used to import large numbers of new rows into SQL Server tables or to export data out of tables into data files. + + + +## mssql-cli +Download page: [mssql-cli]
+Release date: 2018-07-06
+Support Version: 2008-2017/Azure
+Author: Microsoft
+Free version: Open Source
+Price: No + +Interactive command line query tool for SQL Server. + + - Auto-completion + - Syntax highlighting + - Query history + - Configuration file support + - Multi-line queries + + + +## Azure Data Studio +Download page: [Azure Data Studio]
+Release date: 2018-12-19
+Support Version: 2008-2017/Azure
+Author: Microsoft
+Free version: Yes
+Price: No + +Azure Data Studio (previously SQL Operations Studio) is a data management tool that enables working with SQL Server, Azure SQL DB and SQL DW from Windows, macOS and Linux. + +[Azure Data Studio List of Extensions](https://github.com/Microsoft/azuredatastudio/wiki/List-of-Extensions) + + - Cross-Platform DB management for Windows, macOS and Linux with simple XCopy deployment + - SQL Server Connection Management with Connection Dialog, Server Groups, and Registered Servers + - Object Explorer supporting schema browsing and contextual command execution + - T-SQL Query Editor with advanced coding features such as autosuggestions, error diagnostics, tooltips, formatting and peek definition + - Query Results Viewer with advanced data grid supporting large result sets, export to JSON\CSV\Excel, query plan and charting + - Management Dashboard supporting customizable widgets with drill-through actionable insights + - Visual Data Editor that enables direct row insertion, update and deletion into tables + - Backup and Restore dialogs that enables advanced customization and remote filesystem browsing, configured tasks can be executed or scripted + - Task History window to view current task execution status, completion results with error messages and task T-SQL scripting + - Scripting support to generate CREATE, SELECT and DROP statements for database objects + - Workspaces with full Git integration and Find In Files support to managing T-SQL script libraries + - Modern light-weight shell with theming, user settings, full screen support, integrated terminal and numerous other features + + +## RML Utilities for SQL Server + +Download page: [RML Utilities for SQL Server]
+Release date: 2014-12-12
+Support Version: 2008/2012/2014/2016
+Author: Microsoft
+Free version: Yes
+Price: No + +The RML utilities allow you to process SQL Server trace files and view reports showing how SQL Server is performing. For example, you can quickly see: + - Which application, database or login is using the most resources, and which queries are responsible for that + - Whether there were any plan changes for a batch during the time when the trace was captured and how each of those plans performed + - What queries are running slower in todays data compared to a previous set of data + + +## GraphView + Download page: [GraphView]
Release date: 2016-02-23
Support Version: -
@@ -156,7 +418,8 @@ GraphView is a DLL library that enables users to use SQL Server or Azure SQL Dat It connects to a SQL database locally or in the cloud, stores graph data in tables and queries graphs through a SQL-extended language. -## Microsoft Baseline Security Analyze +## Microsoft Baseline Security Analyze + Download page: [Baseline Security Analyze]
Release date: 2015-01-09
Support Version: -
@@ -169,10 +432,11 @@ The Microsoft Baseline Security Analyzer provides a streamlined method to identi MBSA 2.3 release adds support for Windows 8.1, Windows 8, Windows Server 2012 R2, and Windows Server 2012. Windows 2000 will no longer be supported with this release. -## tablediff Utility +## tablediff Utility + Download page: [tablediff Utility]
Release date: -
-Support Version: 2005/2008/2008R2/2012/2014/2016
+Support Version: 2005-2016
Author: Microsoft
Free version: Yes
Price: No
@@ -187,7 +451,8 @@ This utility can be used from the command prompt or in a batch file to perform t - Log results to an output file or into a table in the destination database. -## Microsoft Log Parser +## Microsoft Log Parser + Download page: [Microsoft Log Parser]
Release date: -
Support Version: -
@@ -200,7 +465,21 @@ Log parser is a powerful, versatile tool that provides universal query access to XML files and CSV files, as well as key data sources on the Windows operating system such as the Event Log, the Registry, the file system, and Active Directory. -## Diskspd +## Log Parser Lizard GUI + +Download page: [Log Parser Lizard GUI]
+Release date: 2017-06-01
+Support Version: 2008-2017
+Author: Lizard Labs
+Free version: Yes
+Price: $59
+ +Log Parser Lizard is a GUI for Microsoft Logparser, definitely the best one available on the market today. +Log Parser is a very powerful and versatile query software tool that provides universal query access (using SQL) to text-based data, such as log files, XML files, and TSV/CSV text files, as well as key data sources on the Microsoft Windows operating system, such as the Windows Event Log, IIS log, the registry, the File System, the Active Directory services and much more. + + +## Diskspd + Download page: [Diskspd]
Release date: 2015-12-14
Support Version: -
@@ -211,7 +490,8 @@ DISKSPD is a storage load generator / performance test tool from the Windows/Win Compilation is supported with Visual Studio and Visual Studio Express. Use the Visual Studio solution file inside the diskspd_vs2013 directory. -## HammerDB +## HammerDB + Download page: [HammerDB]
Release date: 2015-05-04
Support Version: -
@@ -223,7 +503,8 @@ HammerDB is an open source database load testing and benchmarking tool for Oracl Postgres Plus Advanced Server, MySQL, Redis and Trafodion SQL on Hadoop. -## Microsoft Exchange Server Error Code Look-up +## Microsoft Exchange Server Error Code Look-up + Download page: [Exchange Server Error Code Look-up]
Release date: 2004-05-10
Support Version: -
@@ -234,7 +515,8 @@ Useful link: http://www.sqlshack.com/how-to-install-and-use-microsoft-baseline-s Determine error values from decimal and hexadecimal error codes in Microsoft Windows operating systems. -## LINQPad +## LINQPad + Download page: [LINQPad]
Release date: 2016-02-01
Support Version: 2008/2012/2014/2016
@@ -245,9 +527,11 @@ Price: $45 Instantly test any C#/F#/VB snippet or program, Query databases in LINQ (or SQL) — SQL/CE/Azure, Oracle, SQLite & MySQL. Standard edition free, with no expiry. Enjoy rich output formatting, optional autocompletion and integrated debugging, Script and automate in your favorite .NET language, Super lightweight — single 15MB executable! +SQL Server query execution plan visualizer for LINQPad http://bit.ly/QueryPlanVisualizer -## SqlDynamite +## SqlDynamite + Download page: [SqlDynamite]
Release date: 2016-04-06
Support Version: 2008/2012/2014/2016
@@ -259,20 +543,22 @@ Easy text search in stored procedures, functions, tables, views and triggers. Supports MSSQL, Oracle, SAP, Firebird, Mysql, PostgreSQL, DB2, Informix, SQLite, Ingres, SQL Azure, Interbase. -## SQL Server Data Tools +## SQL Server Data Tools + Download page: [SQL Server Data Tools]
-Release date: 2016-04-14
-Support Version: 2008/2012/2014/2016
+Release date: 2018-04-10
+Support Version: 2008-2017/Azure
Author: Microsoft
Free version: Yes
Price: No -QL Server Data Tools (SSDT) is a modern development tool that you can download for free to build SQL Server relational databases, +SQL Server Data Tools (SSDT) is a modern development tool that you can download for free to build SQL Server relational databases, Azure SQL databases, Integration Services packages, Analysis Services data models, and Reporting Services reports. With SSDT, you can design and deploy any SQL Server content type with the same ease as you would develop an application in Visual Studio. -## Database Health Monitor +## Database Health Monitor + Download page: [Database Health Monitor]
Release date: 2016-03-20
Support Version: 2008/2012/2014/2016
@@ -284,7 +570,8 @@ Database Health Monitor is a powerful performance monitoring and diagnostics sol performance or availability problems within their SQL Server environment, all from a central console. -## SchemaDrift +## SchemaDrift + Download page: [SchemaDrift]
Release date: 2016-02-28
Support Version: 2008/2012/2014
@@ -295,7 +582,89 @@ Price: No SchemaDrift is a SQL Server database comparison tool that allows you to compare the schema, the tables, indexes, stored procedures, functions, and much more between SQL Server databases -## dta Utility +## DBeaver + +Download page: [DBeaver]
+Release date: 2018-09-24
+Support Version: 2005-2017
+Author: Open Source
+Free version: Yes
+Price: No + +Free multi-platform database tool for developers, SQL programmers, database administrators and analysts. +Supports all popular databases: MySQL, PostgreSQL, SQLite, Oracle, DB2, SQL Server, Sybase, MongoDB, Cassandra, etc + + +## HeidiSQL + +Download page: [HeidiSQL]
+Release date: 2017-12-19
+Support Version: 2005-2017
+Author: Open Source
+Free version: Yes
+Price: No + +HeidiSQL is a useful and reliable tool designed for web developers using the popular MySQL server, Microsoft SQL databases and PostgreSQL. +It enables you to browse and edit data, create and edit tables, views, procedures, triggers and scheduled events. +Also, you can export structure and data either to SQL file, clipboard or to other servers. + + +## SQLExecStats + +Download page: [SQLExecStats]
+Release date: 2016-02-08
+Support Version: 2008/2008R2/2012/2014
+Author: Joe Chang
+Free version: Yes
+Price: No + + - Automate collection of key DMVs for query tuning. + - Collates query exec stats with execution plan details. + - Cross reference index usage by execution plan, what plans reference infrequently used indexes. + - Saves XML plan for top queries. + - Save information directly to Microsoft Excel 2003 file format and in binary. + + +## ExpressProfiler + +Download page: [ExpressProfiler]
+Release date: 2016-02-15
+Support Version: 2008/2008R2/2012/2014
+Author: Chris Moore
+Free version: Yes
+Price: No + +ExpressProfiler (aka **SqlExpress Profiler**) is a simple and fast replacement for SQL Server Profiler with basic GUI and integration with Red Gate Ecosystem project. + + +## Data Migration Assistant + +Download page: [Data Migration Assistant]
+Release date: 2017-03-15
+Support Version: 2005/2008/2008R2/2012/2014/2016/Azure
+Author: Microsoft
+Free version: Yes
+Price: No + +Data Migration Assistant (DMA) enables you to upgrade to a modern data platform by detecting compatibility issues that can impact database functionality on your new version of SQL Server. +It recommends performance and reliability improvements for your target environment. +It allows you to not only move your schema and data, but also uncontained objects from your source server to your target server. + + +## SQL Server Migration Assistant for Sybase + +Download page: [Migration Assistant for Sybase]
+Release date: 2017-02-17
+Support Version: 2005/2008/2008R2/2012/2014/2016
+Author: Microsoft
+Free version: Yes
+Price: No + +Microsoft SQL Server Migration Assistant (SSMA) for Sybase is a tool to automate migration from MySQL database(s) to SQL Server and Azure SQL DB. + + +## dta Utility + Download page: [dta Utility]
Release date: -
Support Version: 2005/2008/2008R2/2012/2014/2016
@@ -307,7 +676,8 @@ Capture performance and usage data about your Microsoft SQL Server 2005+ databas Key real-time metrics provide an overview of your databases and detailed measurements about memory usage, connections, network I/O, and file I/O. -## osql Utility +## osql Utility + Download page: [osql Utility]
Release date: -
Support Version: 2005/2008/2008R2/2012/2014/2016
@@ -319,7 +689,8 @@ The osql utility allows you to enter Transact-SQL statements, system procedures, This utility uses ODBC to communicate with the server. -## sqldiag Utility +## sqldiag Utility + Download page: [sqldiag Utility]
Release date: -
Support Version: 2005/2008/2008R2/2012/2014/2016
@@ -333,7 +704,8 @@ or troubleshoot specific problems with your servers.
SQLdiag is intended to expedite and simplify diagnostic information gathering for Microsoft Customer Support Services. -## sqldumper Utility +## sqldumper Utility + Download page: [sqldumper Utility]
Release date: -
Support Version: 2005/2008/2008R2/2012
@@ -347,7 +719,8 @@ Microsoft SQL Server 2008, Microsoft SQL Server 2008 R2, or Microsoft SQL Server A dump file can be a mini-dump file, a full dump file, or a filtered dump file. -## SqlLocalDB Utility +## SqlLocalDB Utility + Download page: [SqlLocalDB Utility]
Release date: -
Support Version: 2012/2014/2016
@@ -359,7 +732,8 @@ SqlLocalDB lets you create, delete, start, stop, and perform a number of other r an execution mode of SQL Server Express that’s targeted at developers. A LocalDB instance uses a minimal set of files to start the database engine. -## sqllogship Utility +## sqllogship Utility + Download page: [sqllogship Utility]
Release date: -
Support Version: 2005/2008/2008R2/2012/2014/2016
@@ -371,7 +745,8 @@ The sqllogship application performs a backup, copy, or restore operation and ass The operation is performed on a specific instance of Microsoft SQL Server for a specific database. -## sqlservr Application +## sqlservr Application + Download page: [sqlservr Application]
Release date: -
Support Version: 2005/2008/2008R2/2012/2014/2016
@@ -382,7 +757,8 @@ Price: No The sqlservr application starts, stops, pauses, and continues an instance of Microsoft SQL Server from a command prompt. -## sqlps Utility +## sqlps Utility + Download page: [sqlps Utility]
Release date: -
Support Version: 2008/2008R2/2012/2014/2016
@@ -396,7 +772,8 @@ This feature will be removed in a future version of Microsoft SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature. Use the sqlps PowerShell module instead. -## sqlmaint Utility +## sqlmaint Utility + Download page: [sqlmaint Utility]
Release date: -
Support Version: 2005/2008/2008R2/2012/2014/2016
@@ -413,7 +790,8 @@ This feature will be removed in the next version of Microsoft SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature. Use SQL Server maintenance plan feature instead. -## Ssms Utility +## Ssms Utility + Download page: [Ssms Utility]
Release date: -
Support Version: 2005/2008/2008R2/2012/2014/2016
@@ -429,7 +807,8 @@ For instance, .sql files will open a SQL Query Editor window in SQL Server Manag in SQL Server Management Studio. SQL Server Solutions and Projects will open in SQL Server Management Studio. -## dtexec Utility +## dtexec Utility + Download page: [dtexec Utility]
Release date: -
Support Version: 2012/2014/2016
@@ -442,7 +821,24 @@ The dtexec utility provides access to all the package configuration and executio The dtexec utility lets you load packages from these sources: the Integration Services server, an .ispac project file, a Microsoft SQL Server database, the SSIS Package Store, and the file system. -## SQL Server 2005 Best Practices Analyzer +## SQL Server 2016 Report Builder + +Download page: [SQL Server 2016 Report Builder]
+Release date: 2016-09-16
+Support Version: 2016
+Author: Microsoft
+Free version: Yes
+Price: No + +Report Builder provides a productive report-authoring environment for IT professionals and power users. The download provides a stand-alone installer for Report Builder. + +Report Builder provides data visualizations that include charts, maps, sparklines, and data bars that can help produce new insights well beyond what can be achieved with standard tables and charts. +Use Report Builder to create reports and shared datasets. +Publish report parts, and then browse the Report Part Gallery to reuse existing report parts as building blocks for creating new reports quickly with a “grab and go” experience. + + +## SQL Server 2005 Best Practices Analyzer + Download page: [BPA 2005]
Release date: 2008-08-13
Support Version: 2005
@@ -454,7 +850,8 @@ The SQL Server 2005 Best Practices Analyzer (BPA) gathers data from Microsoft Wi BPA uses a predefined list of SQL Server 2005 recommendations and best practices to determine if there are potential issues in the database environment. -## SQL Server 2000 Best Practices Analyzer +## SQL Server 2000 Best Practices Analyzer + Download page: [BPA 2000]
Release date: 2010-04-26
Support Version: 2000
@@ -465,7 +862,8 @@ Price: No SQL Server 2000 Best Practices Analyzer is a database management tool that lets you verify the implementation of common Best Practices on your servers. -## SQL Server 2008 R2 Best Practices Analyzer +## SQL Server 2008 R2 Best Practices Analyzer + Download page: [BPA 2008]
Release date: 2010-06-18
Support Version: 2008/2008R2
@@ -481,7 +879,8 @@ The Microsoft SQL Server 2008 R2 BPA is a diagnostic tool that performs the foll - Recommends solutions to potential problems -## SQL Server 2012 Best Practices Analyzer +## SQL Server 2012 Best Practices Analyzer + Download page: [BPA 2012]
Release date: 2012-04-06
Support Version: 2012
@@ -497,7 +896,8 @@ The Microsoft SQL Server 2012 BPA is a diagnostic tool that performs the followi - Recommends solutions to potential problems -## DLM Dashboard +## DLM Dashboard + Download page: [DLM Dashboard]
Release date: 2016-04-27
Support Version: 2005/2008/2012/2014
@@ -506,14 +906,15 @@ Free version: Yes
Price: No DLM Dashboard tracks your database schemas and alerts you when they change. -DLM Dashboard monitors up to 50 of your databases, and sends you an email alert as soon as your databases start to drift,
+DLM Dashboard monitors up to 50 of your databases, and sends you an email alert as soon as your databases start to drift, or change from their expected state. On the web dashboard, you can see exactly what changed, who made the changes, and when. -## Red Gate SQL Compare +## Red Gate SQL Compare + Download page: [Red Gate SQL Compare]
-Release date: 2016-05-09
-Support Version: 2005/2008/2012/2014
+Release date: 2016-10-31
+Support Version: 2005/2008/2012/2014/2016
Author: Red Gate
Free version: No
Price: $495 @@ -521,7 +922,8 @@ Price: $495 Compares and synchronizes SQL Server database schemas -## Red Gate SQL Data Compare +## Red Gate SQL Data Compare + Download page: [Red Gate SQL Data Compare]
Release date: 2016-05-09
Support Version: 2005/2008/2012/2014
@@ -532,18 +934,8 @@ Price: $495 SQL Data Compare is the industry-standard tool for comparing and deploying SQL Server database contents -## Red Gate SQL Source Control -Download page: [Red Gate SQL Source Control]
-Release date: 2016-02-03
-Support Version: 2005/2008/2012/2014
-Author: Red Gate
-Free version: No
-Price: $495 - -Connect your databases to your source control system - - -## Red Gate SQL Prompt +## Red Gate SQL Prompt + Download page: [Red Gate SQL Prompt]
Release date: 2016-04-28
Support Version: 2005/2008/2012/2014
@@ -554,7 +946,8 @@ Price: $369 Write, format and refactor SQL effortlessly -## Red Gate SQL Monitor +## Red Gate SQL Monitor + Download page: [Red Gate SQL Monitor]
Release date: 2015-10-15
Support Version: 2005/2008/2012/2014
@@ -565,7 +958,8 @@ Price: $1495 Real-time SQL Server performance monitoring, with alerts and diagnostics -## Red Gate SQL Backup Pro +## Red Gate SQL Backup Pro + Download page: [Red Gate SQL Backup Pro]
Release date: 2014-07-08
Support Version: 2005/2008/2012/2014
@@ -576,7 +970,8 @@ Price: $995 Compress, verify, and encrypt SQL Server backups -## Red Gate SQL Doc +## Red Gate SQL Doc + Download page: [Red Gate SQL Doc]
Release date: 2016-04-26
Support Version: 2005/2008/2012/2014
@@ -587,7 +982,8 @@ Price: $369 Document your databases automatically, create documents as HTML, PDF, Microsoft Word or Compiled HTML Help files -## Red Gate SQL Data Generator +## Red Gate SQL Data Generator + Download page: [Red Gate SQL Data Generator]
Release date: 2016-04-26
Support Version: 2005/2008/2012/2014
@@ -598,7 +994,8 @@ Price: $369 Generate realistic test data fast -## Red Gate SQL Dependency Tracker +## Red Gate SQL Dependency Tracker + Download page: [Red Gate SQL Dependency Tracker]
Release date: 2016-04-26
Support Version: 2005/2008/2012/2014
@@ -609,7 +1006,8 @@ Price: $369 Visualize complex databases simply -## Red Gate SQL Multi Script +## Red Gate SQL Multi Script + Download page: [Red Gate SQL Dependency Tracker]
Release date: 2016-04-15
Support Version: 2005/2008/2012/2014
@@ -620,7 +1018,8 @@ Price: $245 Deploy multiple scripts to multiple servers with just one click -## Red Gate SQL Index Manager +## Red Gate SQL Index Manager + Download page: [Red Gate SQL Index Manager]
Release date: ?
Support Version: 2008/2012/2014
@@ -631,7 +1030,8 @@ Price: $149 Analyze, manage, and fix database index fragmentation -## Red Gate SQL Comparison SDK +## Red Gate SQL Comparison SDK + Download page: [Red Gate SQL Comparison SDK]
Release date: 2016-02-22
Support Version: 2008/2012/2014
@@ -642,7 +1042,54 @@ Price: $895 Compare and synchronize automatically database schemas and data -## DLM Automation +## Red Gate SQL Clone + +Download page: [Red Gate SQL Clone]
+Release date: 2017-02-27
+Support Version: 2008-2017
+Author: Red Gate
+Free version: No
+Price: $6955 + + - SQL Clone is a database provisioning tool that lets you create full copies of SQL Server databases and backups in seconds, using around 40MB of disk space per clone. + - Instead of spending hours provisioning copies of your database for development, testing, or diagnostics, SQL Clone creates one data image of a SQL Server database or backup, which you use as the source for clones. + - Clones work just like normal databases. You can connect to them and edit them using any program. SQL Clone's web app provides an easy central place to create and manage clones. + - With SQL Clone, your team can work locally on up-to-date, isolated copies of the database to speed up development, accurately test code, and fix issues faster. + + +## Red Gate SQL Provision + +Download page: [Red Gate SQL Provision]
+Release date: 2018-02-26
+Support Version: 2008-2017
+Author: Red Gate
+Free version: No
+Price: $2955 + +Create, protect, and manage SQL Server database copies for compliant DevOps + + +## Red Gate SQL Data Masker + +Download page: [Red Gate SQL Data Masker]
+Release date: 2018-02-26
+Support Version: 2008-2017
+Author: Red Gate
+Free version: No
+Price: $2355 + +Replace sensitive data with realistic, anonymized, test data + + - Multiple methods to sanitize sensitive information + - Use templates to remain consistent with existing data formats + - Replacement data sets included, such as Names, Zip Codes, Emails + - Populate test data as well as sanitize existing information + - Simple, repeatable, fast, and easy to use + - Supports SQL Server and Oracle databases + + +## DLM Automation + Download page: [DLM Automation]
Release date: ?
Support Version: 2008/2012/2014
@@ -653,7 +1100,8 @@ Price: ? Automate your database changes with continuous integration and automated deployment -## ReadyRoll +## ReadyRoll + Download page: [ReadyRoll]
Release date: 2016-03-01
Support Version: 2012/2014
@@ -665,7 +1113,25 @@ It generates numerically ordered SQL migration scripts that sit inside your proj You can add them to version control, use them to build and release, and automate database and application deployments, all in one process. -## SQL XEvent Profiler +## Rapid Database Extractor + +Download page: [Rapid Database Extractor]
+Release date: 2016-11-03
+Support Version: 2008/2012/2014/2016/Azure
+Author: Idera
+Free version: Yes
+Price: No + + - Manage SQL Server and Oracle data sources + - Manipulate database objects + - Interactively edit SQL code + - Selectively execute SQL queries to retrieve data + - Export data to common file formats + - Connect to cloud and run in cloud (provisional) + + +## SQL XEvent Profiler + Download page: [SQL XEvent Profiler]
Release date: 2014-03-14
Support Version: 2012/2014
@@ -677,7 +1143,8 @@ Idera’s SQL XEvent Profiler emulates the functionality and simplicity of SQL S and see whats happening on the server. Plus, it leverages SQL Extended Events (XEvents) as the backing technology — making it more efficient than SQL Trace. -## SQL Check +## SQL Check + Download page: [SQL Check]
Release date: 2015-09-24
Support Version: 2005/2008/2008R2/2012/2014
@@ -691,7 +1158,8 @@ Price: No - Install easily without agents -## SQL Fragmentation Analyzer +## SQL Fragmentation Analyzer + Download page: [SQL Fragmentation Analyzer]
Release date: 2012-11-16
Support Version: 2005/2008/2008R2/2012/2014
@@ -704,7 +1172,8 @@ Price: No - Set fragmentation thresholds: normal, warning, critical -## SQL Heat Map +## SQL Heat Map + Download page: [SQL Heat Map]
Release date: 2016-01-27
Support Version: 2005/2008/2008R2/2012/2014
@@ -717,7 +1186,8 @@ Price: No - Quickly locate tables and indexes that need more allocated storage -## SQL Hekaton Memory Check +## SQL Hekaton Memory Check + Download page: [SQL Hekaton Memory Check]
Release date: 2015-06-10
Support Version: 2014
@@ -731,7 +1201,8 @@ Price: No - Simulate moving to In-Memory OLTP -## SQL Page Viewer +## SQL Page Viewer + Download page: [SQL Page Viewer]
Release date: 2014-08-25
Support Version: 2005/2008/2008R2/2012/2014
@@ -746,7 +1217,8 @@ Price: No - Can launch directly within SSMS for optimal usability -## SQL Update Statistics +## SQL Update Statistics + Download page: [SQL Update Statistics]
Release date: 2015-12-14
Support Version: 2005/2008/2008R2/2012/2014
@@ -760,7 +1232,8 @@ Price: No - Create graphical histograms for each column’s statistics -## SQL Statistics Aggregator +## SQL Statistics Aggregator + Download page: [SQL Statistics Aggregator]
Release date: 2015-05-18
Support Version: 2005/2008/2008R2/2012/2014
@@ -774,7 +1247,8 @@ Price: No - Export and import results for easy collaboration -## SQL Backup Status Reporter +## SQL Backup Status Reporter + Download page: [SQL Backup Status Reporter]
Release date: 2015-08-07
Support Version: 2005/2008/2008R2/2012
@@ -788,7 +1262,8 @@ Price: No - Identify full and differential backups for many databases -## SQL Integrity Check +## SQL Integrity Check + Download page: [SQL Integrity Check]
Release date: 2013-08-26
Support Version: 2005/2008/2008R2/2012
@@ -803,7 +1278,8 @@ Price: No - Do not need to write and maintain scripts -## SQL Job Manager +## SQL Job Manager + Download page: [SQL Job Manager]
Release date: 2012-03-19
Support Version: ?
@@ -818,7 +1294,8 @@ Price: No - Have customizable calendar view -## Azure SQL Database Backup +## Azure SQL Database Backup + Download page: [Azure SQL Database Backup]
Release date: 2012-10-02
Support Version: ?
@@ -833,7 +1310,8 @@ Price: No - Restore with transaction consistency to and from the cloud -## SQL Column Search +## SQL Column Search + Download page: [SQL Column Search]
Release date: 2015-11-17
Support Version: 2005/2008/2008R2/2012/2014
@@ -846,7 +1324,8 @@ Price: No - Export results to CSV format for easy analysis and reporting -## SQL Permissions Extractor +## SQL Permissions Extractor + Download page: [SQL Permissions Extractor]
Release date: 2015-08-07
Support Version: 2005/2008/2008R2/2012
@@ -860,7 +1339,8 @@ Price: No - Copy, extract, modify and apply changes in four steps -## SQL BI Check +## SQL BI Check + Download page: [SQL BI Check]
Release date: 2016-04-13
Support Version: 2005/2008/2008R2/2012
@@ -874,7 +1354,8 @@ Price: No - Get up and running in minutes, no agents required -## SQL Inventory Check +## SQL Inventory Check + Download page: [SQL Inventory Check]
Release date: 2016-03-24
Support Version: 2005/2008/2008R2/2012
@@ -887,7 +1368,8 @@ Price: No - Stay on top of important SQL Server updates and patches -## SQL Diagnostic Manager +## SQL Diagnostic Manager + Download page: [SQL Diagnostic Manager]
Release date: ?
Support Version: 2005/2008/2008R2/2012
@@ -903,7 +1385,8 @@ Price: $1747 - Web-based dashboard with at-a-glance views of top issues and alert -## SQL Safe Backup +## SQL Safe Backup + Download page: [SQL Safe Backup]
Release date: 2016-03-24
Support Version: 2005/2008/2008R2/2012
@@ -919,7 +1402,8 @@ Price: $907 - Web-based dashboard provides at-a-glance views of top issues and alerts -## SQL Compliance Manager +## SQL Compliance Manager + Download page: [SQL Compliance Manager]
Release date: 2015-09-08
Support Version: 2005/2008/2008R2/2012
@@ -934,7 +1418,8 @@ Price: $2657 - Minimize Overhead - light data collection agent minimizes server imp -## SQL Inventory Manager +## SQL Inventory Manager + Download page: [SQL Inventory Manager]
Release date: 2016-04-22
Support Version: 2005/2008/2008R2/2012
@@ -949,7 +1434,8 @@ Price: $3195 - Quickly deploy and access from anywhere via web-based and agentless UI -## SQL Virtual Database +## SQL Virtual Database + Download page: [SQL Virtual Database]
Release date: 2016-03-24
Support Version: 2005/2008/2008R2/2012
@@ -964,7 +1450,8 @@ Price: $625 - Read/Write support - inserts, updates, DBCC commands -## SQL Secure +## SQL Secure + Download page: [SQL Secure]
Release date: 2016-04-19
Support Version: 2005/2008/2008R2/2012
@@ -979,7 +1466,8 @@ Price: $907 - Customizable templates for PCI, HIPAA and more -## SQL Doctor +## SQL Doctor + Download page: [SQL Doctor]
Release date: 2015-12-17
Support Version: 2005/2008/2008R2/2012
@@ -994,7 +1482,8 @@ Price: $625 - Stored history of analysis recommendations for trending -## SQL Admin Toolset +## SQL Admin Toolset + Download page: [SQL Admin Toolset]
Release date: 2016-01-13
Support Version: 2005/2008/2008R2/2012
@@ -1008,7 +1497,8 @@ Price: $325 - Perform analysis on your SQL data -## SQL Defrag Manager +## SQL Defrag Manager + Download page: [SQL Defrag Manager]
Release date: 2016-03-10
Support Version: 2005/2008/2008R2/2012
@@ -1023,7 +1513,8 @@ Price: $1495 - Centrally manage, report and notify instantly -## DBArtisan +## DBArtisan + Download page: [DBArtisan]
Release date: ?
Support Version: 2005/2008/2008R2/2012
@@ -1038,7 +1529,8 @@ Price: $3122 - Protect data security with view, grant and revoke of permissions -## SQL BI Manager +## SQL BI Manager + Download page: [SQL BI Manager]
Release date: 2015-09-08
Support Version: 2005/2008/2008R2/2012
@@ -1053,7 +1545,8 @@ Price: $697 - Log in from anywhere for at-a-glance views of top issues and alerts -## SQL Enterprise Job Manager +## SQL Enterprise Job Manager + Download page: [SQL Enterprise Job Manager]
Release date: 2015-09-08
Support Version: 2005/2008/2008R2/2012
@@ -1069,7 +1562,8 @@ Price: $697 - Web-based architecture simplifies deployment -## DB Optimizer +## DB Optimizer + Download page: [DB Optimizer]
Release date: ?
Support Version: 2005/2008/2008R2/2012
@@ -1084,10 +1578,107 @@ Price: $1420 - Load test alternative SQL queries in simulated production environment -## dbForge Schema Compare -Download page: [dbForge Schema Compare]
-Release date: 2015-12-22
+## SQL Query Store Optimizer + +Download page: [SQL Query Store Optimizer]
+Release date: 2016-07-01
+Support Version: 2016
+Author: Idera
+Free version: Yes
+Price: No + + - Improve SQL Server 2016 Query Store performance + - See all Query Store properties in single summary table + - Execute predefined actions that modify Query Store properties and contents + - Edit all modifiable Query Store properties in single overview panel + - Get up and running in minutes with no agents + + +## Rapid SQL + +Download page: [Rapid SQL]
+Release date: ?
+Support Version: 2005/2008/2008R2/2012/2014
+Author: Idera
+Free version: No
+Price: $710 + + - Create high-performing SQL code on major DBMSs from one interface + - Easily build complex SQL statements with visual query builder + - Quickly construct, analyze and execute SQL code with code analyst + - Simplify debugging SQL code, functions, and stored procedures + - Collaborate effectively across development teams with version control + + +## SQL Comparison Toolset + +Download page: [SQL Comparison Toolset]
+Release date: ?
+Support Version: 2005/2008/2008R2/2012/2014
+Author: Idera
+Free version: No
+Price: $745 + + - Compare and synchronize SQL Server data and schema objects + - Easy navigation of user interface improves efficiency + - Automate comparison and synchronization operations + - Customize schema compare and synchronization sessions + - Generate ready-to-use database synchronization scripts + + +## ER/Studio Data Architect + +Download page: [ER/Studio Data Architect]
+Release date: ?
Support Version: 2005/2008/2008R2/2012/2014
+Author: Idera
+Free version: No
+Price: $1287 + + - Create effective models to build a business-driven data architecture + - Document and enhance existing databases to reduce redundancy + - Implement naming standards to improve data consistency and quality + - Effectively share and communicate models across the enterprise + - Map data sources and trace origins to enhance data lineage + + +## DB Change Manager + +Download page: [DB Change Manager]
+Release date: ?
+Support Version: 2005/2008/2008R2/2012/2014/2016
+Author: Idera
+Free version: No
+Price: $1420 + + - Quickly roll out and reconcile database changes + - Reveal, track, and report on database changes + - Comply with database audit and reporting requirements + - Protect data privacy within the database environment + - Track changes from multiple major database platforms + + +## Uptime Infrastructure Monitor + +Download page: [Uptime Infrastructure Monitor]
+Release date: ?
+Support Version: ?
+Author: Idera
+Free version: No
+Price: ? + + - Monitor servers, VMs, network devices, and applications from a unified dashboard + - Use historic data to plan for future server capacity needs + - Track service-level performance trends for SLA compliance and reporting + - Monitor virtually anything via a multitude of pre-built plug-ins or custom scripts + - Streamline incident management with native ServiceNow integration + + +## dbForge Schema Compare + +Download page: [dbForge Schema Compare]
+Release date: 2018-12-21
+Support Version: 2005-2019/Amazon/Azure
Author: Devart
Free version: No
Price: $150 @@ -1097,37 +1688,42 @@ The relentlessly tested compare tool allows working with live SQL Server databas You can compare your SQL Server databases, analyze differences and synchronize your schemas using generated SQL script in a well-designed user interface quickly and without errors. -## dbForge Data Compare +## dbForge Data Compare + Download page: [dbForge Schema Compare]
-Release date: 2015-11-30
-Support Version: 2005/2008/2008R2/2012/2014
+Release date: 2018-12-21
+Support Version: 2005-2019/Amazon/Azure
Author: Devart
Free version: No
-Price: $150 +Price: $149 dbForge Data Compare for SQL Server is a powerful, fast and easy to use SQL comparison tool, capable of using native SQL Server backups as metadata source. With dbForge Data Compare you can tune your SQL database comparison, quickly analyze differences in a well-designed user interface and effortlessly synchronize data via a convenient wizard with additional options. -## dbForge Data Generator +## dbForge Data Generator + Download page: [dbForge Data Generator]
-Release date: 2015-12-30
-Support Version: 2005/2008/2008R2/2012/2014
+Release date: 2018-12-21
+Support Version: 2005-2019/Amazon/Azure
Author: Devart
Free version: No
-Price: $250 +Price: $249 -dbForge Data Generator for SQL Server is a powerful GUI tool for fast generation of meaningful test data. The tool includes 190+ predefined generators with sensible configuration options, that allow emulating column-intelligent real-world data. dbForge Data Generator for SQL Server can save your time and effort by populating SQL Server tables with millions of rows of test data that looks just like real data. +dbForge Data Generator for SQL Server is a powerful GUI tool for fast generation of meaningful test data. +The tool includes 190+ predefined generators with sensible configuration options, that allow emulating column-intelligent real-world data. +dbForge Data Generator for SQL Server can save your time and effort by populating SQL Server tables with millions of rows of test data that looks just like real data. -## dbForge Query Builder +## dbForge Query Builder + Download page: [dbForge Query Builder]
-Release date: 2015-06-03
-Support Version: 2005/2008/2008R2/2012/2014
+Release date: 2018-12-21
+Support Version: 2005-2019/Amazon/Azure
Author: Devart
Free version: No
-Price: $100 +Price: $99 dbForge Query Builder for SQL Server allows users to build complex SQL queries via an intuitive visual query building interface easily and without manual code writing. This SQL query designer will be useful to those, who often create queries to databases. @@ -1135,10 +1731,11 @@ Visual features to create queries, usage of graphical SQL query creator to inter But even experienced users can save a lot of time on routine work. -## dbForge Event Profiler +## dbForge Event Profiler + Download page: [dbForge Event Profiler]
-Release date: 2015-04-08
-Support Version: 2008/2012/2014
+Release date: 2018-12-21
+Support Version: 2005-2019
Author: Devart
Free version: Yes
Price: No @@ -1148,10 +1745,11 @@ The events and data columns are stored in a physical trace file for later examin You can use this information to identify and troubleshoot many SQL Server-related problems. -## dbForge SQL Decryptor +## dbForge SQL Decryptor + Download page: [dbForge SQL Decryptor]
-Release date: 2013-11-07
-Support Version: 2005/2008/2008R2/2012
+Release date: 2018-12-21
+Support Version: 2005-2019
Author: Devart
Free version: Yes
Price: No @@ -1159,13 +1757,14 @@ Price: No Decrypt SQL Server Procedures, Functions, Triggers, and Views -## dbForge Studio +## dbForge Studio + Download page: [dbForge Studio]
-Release date: 2015-12-18
-Support Version: 2008/2008R2/2012/2014
+Release date: 2018-12-21
+Support Version: 2005-2019/Amazon/Azure
Author: Devart
Free version: Yes
-Price: $250 +Price: $249 - Code completion — to create whole SQL statement in a few keystrokes - SQL formatting — to follow common coding style (standard) @@ -1174,20 +1773,48 @@ Price: $250 - Code navigation — quick jump by F12 to variable declaration, object editor, etc. -## dbForge Fusion +## dbForge Fusion + Download page: [dbForge Fusion]
-Release date: 2016-03-03
-Support Version: 2008/2008R2/2012/2014
+Release date: 2018-12-21
+Support Version: 2005-2019/Amazon/Azure
Author: Devart
Free version: No
-Price: $150 +Price: $149 dbForge Fusion for SQL Server is a powerful Visual Fusion plugin designed to simplify SQL database development and enhance data management capabilities. When you integrate dbForge Fusion for SQL Server into Microsoft Visual Fusion, all database development and administration tasks become available from your IDE. It provides an easier way to explore and maintain existing databases, design compound SQL statements and queries, and manipulate data in different way. -## Minion Enterprise +## dbForge Documenter + +Download page: [dbForge Documenter]
+Release date: 2018-12-21
+Support Version: 2005-2019
+Author: Devart
+Free version: No
+Price: $149 + +dbForge Documenter for SQL Server is a big time saver when it comes to documentation of SQL Server databases. +This tool automatically generates documentation of an entire SQL Server database in a few clicks. +The tool includes a wide range of options to customize the generated documentation to meet your specific requirements. + + +## Devart Excel Add-in for SQL Server + +Download page: [Devart Excel Add-in for SQL Server]
+Release date: 2017-09-13
+Support Version: 2005/2008/2008R2/2012/2014/2016
+Author: Devart
+Free version: No
+Price: $100 + +Devart Excel Add-ins allow you to work with database and cloud data in Microsoft Excel as with usual Excel spreadsheets. + + +## Minion Enterprise + Download page: [Minion Enterprise]
Release date: ?
Support Version: 2008/2008R2/2012
@@ -1203,7 +1830,8 @@ Even better, it opens up a new world of central management: audit SQL and AD sec standardize and enforce SQL Server settings, automate error log searches, and so very much more. -## SQL Server Compression Estimator +## SQL Server Compression Estimator + Download page: [SQL Server Compression Estimator]
Release date: 2011-06-02
Support Version: 2008/2008R2/2012
@@ -1217,74 +1845,21 @@ It will estimate both ROW and PAGE compression, and will optionally report the I You can then use that information to perhaps choose a less aggresive compression algorithm for heavily updated indexes. -## ClearTrace +## ClearTrace + Download page: [ClearTrace]
-Release date: 2015-07-04
-Support Version: 2008/2012/2014
+Release date: 2016-07-07
+Support Version: 2008/2012/2014/2016
Author: Bill Graziano
Free version: Yes
Price: No -ClearTrace imports SQL Server 2014, SQL Server 2012, SQL Server 2008, SQL Server 2005, SQL Server 2000 trace +ClearTrace imports SQL Server 2016, SQL Server 2014, SQL Server 2012, SQL Server 2008, SQL Server 2005, SQL Server 2000 trace and Profiler files into SQL Server and displays summary performance information. -## SQLSentry Fragmentation Manager -Download page: [SQLSentry Fragmentation Manager]
-Release date: 2016-08-03
-Support Version: 2008/2012/2014
-Author: SQLSentry
-Free version: No
-Price: $795 - -Dramatically improves the manageability and visibility of SQL Server index fragmentation across the enterprise - -Fragmentation Manager helps you make good decisions about how and when to defragment. -You can easily set up an environment-wide schedule to automate index analysis and defragmentation operations, -while allowing the flexibility to customize the schedule and other specific instances, databases, tables, and even individual indexes. -Fragmentation Manager will also allow you to perform index defragmentation faster than ever before via support for multiple concurrent operations. - - -## SQLSentry Plan Explorer -Download page: [SQLSentry Plan Explore]
-Release date: 2016-01-28
-Support Version: 2008/2012/2014
-Author: SQLSentry
-Free version: Yes
-Price: $295 - -With both a free and PRO version, Plan Explorer builds upon the graphical plan view in SQL Server Management Studio (SSMS) -to make query plan optimization more efficient. -It is a lightweight standalone app that contains many of the plan analysis features introduced in SQL Sentry v6, and does not require a collector service or database. - - -## SQLSentry Event Manager -Download page: [SQLSentry Event Manager]
-Release date: 2016-03-08
-Support Version: 2008/2012/2014
-Author: SQLSentry
-Free version: No
-Price: $995 - -With specific products for SQL Server, Windows, SharePoint and Oracle, Event Manager provides DBAs with "Outlook-style" visibility -and functionality for managing SQL Agent jobs, Windows Tasks, and Oracle jobs in increasingly complex cross-platform environments. -Unlike most other scheduling products, Event Manager does not require an agent to be installed and managed on each server. - - -## SQLSentry Performance Advisor -Download page: [SQLSentry Performance Advisor]
-Release date: 2016-03-08
-Support Version: 2008/2012/2014
-Author: SQLSentry
-Free version: No
-Price: ? - -Performance Advisor is the unmatched solution for monitoring and managing all aspects of your SQL Server infrastructure. -Monitor SQL Server and Analysis Services, Windows servers and VMware hosts. Support for Microsoft Analytics Platform System (APS), -Azure SQL Data Warehouse, Azure SQL Database, and Amazon EC2 allows you to monitor your environment on every platform. - - -## Dell Security Explorer +## Dell Security Explorer + Download page: [Dell Security Explorer]
Release date: 2015-06-25
Support Version: 2008/2012/2014
@@ -1297,7 +1872,8 @@ Plus, it complements Microsoft tools by solving key SQL Server challenges, so yo It also makes it easy to manage change, resolve issues quickly and promote the highest levels of code quality, performance and maintainability. -## Dell LiteSpeed for SQL Server +## Dell LiteSpeed for SQL Server + Download page: [Dell Security Explorer]
Release date: 2015-07-31
Support Version: 2008/2012/2014
@@ -1310,7 +1886,8 @@ operations across the entire enterprise. Easily manage and monitor SQL Server pr With LiteSpeed, a complete workbench of SQL Server recovery tools are at your fingertips so you can get data back online — fast. -## Dell Toad for SQL Server +## Dell Toad for SQL Server + Download page: [Dell Toad for SQL Server]
Release date: 2015-05-12
Support Version: 2008/2008R2/2012/2014
@@ -1325,7 +1902,8 @@ Unlike native tools, Security Explorer provides the ability to back up and resto Security Explorer provides on-the-fly reports to help meet auditing requirements. -## Dell Spotlight +## Dell Spotlight + Download page: [Dell Spotlight]
Release date: 2016-03-10
Support Version: 2008/2008R2/2012/2014
@@ -1341,7 +1919,8 @@ an integrated Xpert tuning module and mobile device support, Spotlight on SQL Server Enterprise makes it easier than ever to obtain the data you need to ensure the health of your SQL Server databases. -## Dell Foglight +## Dell Foglight + Download page: [Dell Foglight]
Release date: 2015-09-22
Support Version: 2008/2008R2/2012/2014
@@ -1355,73 +1934,50 @@ multi-platform environments – even when you use native or third-party tools Get a wealth of information at a fraction of the impact of conventional collection methods. -## SQLSolutions SQL Deadlock Detector -Download page: [SQLSolutions SQL Deadlock Detector]
-Release date: 2013-05-16
-Support Version: ?
-Author: SQLSolutions
-Free version: No
-Price: $295 - - - Monitor and detect long-running locks and deadlocks 24/7 - - Identify blocking SQL code, locked objects and deadlock victims with pinpoint accuracy - - Accelerate system response time by reducing long lock waits - - -## SQLSolutions SQL Heartbeat -Download page: [SQLSolutions SQL Heartbeat]
-Release date: 2013-03-03
-Support Version: ?
-Author: SQLSolutions
-Free version: No
-Price: $295 - - - Unlock the value of a full SQL Server trace - - Quickly diagnose and identify all performance bottlenecks - - Locate within minutes specific SQL statements responsible for each bottleneck - - Proactively and constantly monitor performance through scheduled traces - - -## SQLSolutions SQL Trace Analyzer -Download page: [SQLSolutions SQL Trace Analyzer]
-Release date: 2009-12-09
-Support Version: ?
-Author: SQLSolutions
-Free version: No
-Price: $495 +## Dell Discovery Wizard + +Download page: [Dell Foglight]
+Release date: 2011-09-22
+Support Version: 2008/2008R2/2012/2014
+Author: Dell
+Free version: Yes
+Price: No -Monitor your SQL Server 24 x 7 to remedy performance bottlenecks and maintain server health. -SQL Heartbeat monitors all of your SQL Servers in a way that allows you to identify and prevent SQL Server problems before they happen. -SQL Heartbeat allows for an unlimited number of custom counters to be defined. -Important metrics often include: logins per second, lack waits per second, total latch wait time, deadlocks per second, errors per second, -buffer cache hits ratio, page life expectancy, percent CPU utilization and average disk queue lengths. -As default metrics have been set up by SQL Server experts, the initial setup step is minimal. + - Take inventory of your network databases, including data amounts + - Choose the databases you want to consolidate + - Review database history, including installation and creation dates + - Find the SQL Server versions and service packs currently deployed + - Identify names of servers, instances and operating systems + - Learn the identity of your end users -## SQLSolutions SQL Ultimate Debugger -Download page: [SQLSolutions SQL Ultimate Debugger]
+## Dell Enterprise Reporter + +Download page: [Dell Enterprise Reporter]
Release date: ?
-Support Version: ?
-Author: SQLSolutions
+Support Version: 2008/2008R2/2012/2014
+Author: Dell
Free version: No
-Price: $295 +Price: $511 -The sql server tool for developers who debug SQL server stored procedures, functions (UDFs) and triggers. -This tool allows a developer to inspect values of ALL objects: simple variables, temporary tables, table variables and even permanent tables. +Dell Enterprise Reporter for SQL Server provides ad-hoc reporting for visibility database security configuration, +including users and logins, roles and database permissions -## SQLScripter -Download page: [SQLScripter]
+## SQL Scripter + +Download page: [SQL Scripter]
Release date: 2013-02-24
Support Version: ?
Author: Thomas Hinsenkamp
Free version: No
Price: €99 -Generate T-SQL data scripts quick and easy. +SQL Scripter is a powerful tool for Microsoft SQL Server database administrators and developers to generate data scripts in a readable and executable T-SQL format. -## Simple Dynamic Scheduler +## Simple Dynamic Scheduler + Download page: [Simple Dynamic Scheduler]
Release date: 2016-05-02
Support Version: 2008/2012/2014
@@ -1437,10 +1993,11 @@ Simple Dynamic Scheduler is alternative scheduling utility which uses SQL Server - Light-weight - Provides only decision machanism (Run or Hold) without actually executing anything -## ApexSQL Audit +## ApexSQL Audit + Download page: [ApexSQL Audit]
-Release date: 2016-04-08
-Support Version: 2008/2012/2014
+Release date: 2017-07-11
+Support Version: 2008-2017
Author: ApexSQL
Free version: No
Price: $1699 @@ -1455,10 +2012,11 @@ Price: $1699 - Easily manage auditing on multiple servers -## ApexSQL Backup +## ApexSQL Backup + Download page: [ApexSQL Backup]
-Release date: 2015-12-30
-Support Version: 2008/2012/2014
+Release date: 2017-10-12
+Support Version: 2008-2017
Author: ApexSQL
Free version: No
Price: $499 @@ -1473,10 +2031,26 @@ Price: $499 - Cleanup SQL backup and restore history -## ApexSQL Log +## ApexSQL Defrag + +Download page: [ApexSQL Defrag]
+Release date: 2017-06-29
+Support Version: 2008-2017
+Author: ApexSQL
+Free version: No
+Price: $499 + + - Index fragmentation analysis + - Index defragmentation + - Custom policies: Use custom policies to automate database index maintenance + - Set thresholds for reorganizing and rebuilding jobs + + +## ApexSQL Log + Download page: [ApexSQL Log]
-Release date: 2015-11-23
-Support Version: 2008/2012/2014
+Release date: 2017-05-24
+Support Version: 2008-2017
Author: ApexSQL
Free version: No
Price: $1999 @@ -1491,10 +2065,11 @@ Price: $1999 - Avoid performance overhead and data storage -## ApexSQL Monitor +## ApexSQL Monitor + Download page: [ApexSQL Monitor]
-Release date: 2015-12-29
-Support Version: 2008/2012/2014
+Release date: 2017-10-05
+Support Version: 2008-2017
Author: ApexSQL
Free version: No
Price: $499 @@ -1509,62 +2084,66 @@ Price: $499 - Visualize data with logarithmic scaling -## ApexSQL Recover -Download page: [ApexSQL Recover]
-Release date: 2015-01-21
-Support Version: 2008/2012/2014
+## ApexSQL Plan + +Download page: [ApexSQL Plan]
+Release date: 2018-04-05
+Support Version: 2008-2017
Author: ApexSQL
-Free version: No
-Price: $1999 - - - Recover deleted, dropped and truncated data - - Reverse inadvertent or malicious database changes - - Extract data directly from backup files - - Recover deleted data and files from SharePoint - - Recover deleted BLOBs - - Extract BLOBs stored as files - +Free version: Yes
+Price: No -## ApexSQL Restore -Download page: [ApexSQL Restore]
-Release date: 2014-12-08
-Support Version: 2008/2012/2014
+ - Analyze and optimize SQL query execution plans + - Identify query performance issues and deadlocks + - Understand query performance characteristics + - Analyze query waits & review query execution plans + - Customize graphical query execution plan view + - See the actual relative cost of each plan operator + - Analyze query live performance statistics + - Compare estimated and actual query execution plans + + +## ApexSQL Propagate + +Download page: [ApexSQL Propagate]
+Release date: 2017-09-25
+Support Version: 2008-2017
Author: ApexSQL
-Free version: No
-Price: $399 +Free version: Yes
+Price: No - - Work with backups just like with live databases - - Mount backups to a specific point in time - - Speed up SQL database restores - - Access data and objects directly inside backups - - Attach backups directly from network drives - - Modify data without altering backup files + - Execute scripts on saved list of servers/databases + - Parse SQL scripts prior to execution + - Create SQL scripts directly in the application + - Manage lists of SQL scripts and SQL databases + - Set order of SQL scripts execution + - Export execution results into TXT or CSV file + - Preview exaction results by databases or by scripts + - Edit SQL scripts in a built-in IDE prior to execution -## ApexSQL Build +## ApexSQL Build + Download page: [ApexSQL Build]
-Release date: 2015-12-22
-Support Version: 2008/2012/2014
+Release date: 2017-05-15
+Support Version: 2008-2017
Author: ApexSQL
Free version: No
Price: $399 -Run scripts on multiple databases at once - - Create C# executables / .NET deployment packages + - Create executable installation packages - Deploy databases directly from SQL source control - Consolidate multiple SQL scripts - - Build databases from scripts - - source control - - etc + - Build databases from scripts, source control, etc - Ensure error free deployments - Preview the script impact by action or SQL object - - Execute scripts on saved list of servers/databases -## ApexSQL Clean +## ApexSQL Clean + Download page: [ApexSQL Clean]
-Release date: 2015-09-04
-Support Version: 2008/2012/2014
+Release date: 2017-09-28
+Support Version: 2008-2017
Author: ApexSQL
Free version: No
Price: $399 @@ -1579,34 +2158,54 @@ Price: $399 - Create and export reports from object dependencies -## ApexSQL Data Diff +## ApexSQL Data Diff + Download page: [ApexSQL Data Diff]
-Release date: 2015-12-11
-Support Version: 2008/2012/2014
+Release date: 2017-10-03
+Support Version: 2008-2017
Author: ApexSQL
Free version: No
-Price: $399 +Price: $599 -Compare data in live databases and backups + - Compare data in live DBs, backups and SC projects - Perform row level recovery without restoring - - Community - - Standard - - and Professional editions + - Community, Standard, and Professional editions - Compare huge databases quickly and without errors - Automate and schedule data migrations - Initiate database compares directly from SSMS - - Export results to HTML - - XML and Excel - - Create executable .NET packages + - Export results to HTML, CSV and Excel + - Create executable installation packages + - Integrate with all popular SC systems e.g. Git, SVN + - Deploy data changes directly from a source control label + + +## ApexSQL Decrypt + +Download page: [ApexSQL Decrypt]
+Release date: 2017-08-16
+Support Version: 2008-2017
+Author: ApexSQL
+Free version: Yes
+Price: No + + - Decrypt SQL procedures, functions, triggers and views + - Initiate decryption directly from SSMS + - Decrypt objects with a single click + - Filter encrypted objects + - View original DDL script + - Export encrypted objects into a SQL script + - Decrypt databases from multiple servers + - Decrypt wizard with built-in IDE -## ApexSQL Diff +## ApexSQL Diff + Download page: [ApexSQL Diff]
-Release date: 2016-03-23
-Support Version: 2008/2012/2014
+Release date: 2017-10-26
+Support Version: 2008-2017
Author: ApexSQL
Free version: No
-Price: $399 +Price: $599 - Compare live DBs, backups, scripts and SC projects - Deploy a database directly from source control @@ -1617,15 +2216,16 @@ Price: $399 - Create executable .NET packages -## ApexSQL Doc +## ApexSQL Doc + Download page: [ApexSQL Doc]
-Release date: 2015-04-19
-Support Version: 2008/2012/2014
+Release date: 2017-09-06
+Support Version: 2008-2017
Author: ApexSQL
Free version: No
-Price: $299 +Price: $699 -Document SQL Server databases and SSIS packages + - Document SQL Server databases and SSIS packages - Generate documentation in CHM, HTML, Word and PDF - Automate and schedule the documenting process - Display graphical relationship diagrams @@ -1635,10 +2235,11 @@ Document SQL Server databases and SSIS packages - Include Data model diagrams -## ApexSQL Generate +## ApexSQL Generate + Download page: [ApexSQL Generate]
-Release date: 2016-03-15
-Support Version: 2008/2012/2014
+Release date: 2017-07-13
+Support Version: 2008-2017
Author: ApexSQL
Free version: No
Price: $499 @@ -1653,13 +2254,14 @@ Price: $499 - Emulate real-world test data -## ApexSQL Script +## ApexSQL Script + Download page: [ApexSQL Script]
-Release date: 2015-09-11
-Support Version: 2008/2012/2014
+Release date: 2017-05-08
+Support Version: 2008-2017
Author: ApexSQL
Free version: No
-Price: $249 +Price: $399 - Script both SQL database objects and data - Create executable .NET packages @@ -1671,13 +2273,14 @@ Price: $249 - Easily decrypt some/all encrypted database objects -## ApexSQL Trigger +## ApexSQL Trigger + Download page: [ApexSQL Trigger]
-Release date: 2015-09-04
-Support Version: 2008/2012/2014
+Release date: 2017-06-01
+Support Version: 2008/2012/2014/2016
Author: ApexSQL
Free version: No
-Price: $1999 +Price: $1299 - Track data / DML changes in SQL Server databases - Integrate royalty free auditing into your apps @@ -1689,7 +2292,141 @@ Price: $1999 - Audit who, what, and when for all changes -## DBBest T-SQL Analyzer +## ApexSQL Trigger Viewer + +Download page: [ApexSQL Trigger Viewer]
+Release date: 2017-06-01
+Support Version: 2008-2017
+Author: ApexSQL
+Free version: Yes
+Price: No + +Read-only auditing reports for end users + + +## ApexSQL Snapshot Utility + +Download page: [ApexSQL Snapshot Utility]
+Release date: 2016-01-12
+Support Version: 2008/2012/2014/2016
+Author: ApexSQL
+Free version: Yes
+Price: No + +Utility to create a lightweight 'snapshot' of a database schema, that can be used by ApexSQL Diff as a datasource + + +## ApexSQL Model + +Download page: [ApexSQL Model]
+Release date: 2018-10-10
+Support Version: 2008-2017
+Author: ApexSQL
+Free version: No
+Price: $399 + +Create database model diagrams and synchronize changes with existing databases. + - Forward and reverse engineer + - Customize the appearance of models + - Create new or modify existing object groups + - Navigate through model history + - Export database models as imagesCustomize print output + + +## ApexSQL Analyze + +Download page: [ApexSQL Analyze]
+Release date: 2017-12-13
+Support Version: 2008-2017
+Author: ApexSQL
+Free version: No
+Price: $299 + +Database dependency analysis + + - View and analyze SQL dependencies + - Customize the appearance of dependency diagrams + - Map dependencies down to the column level + - Visualize object dependencies graphically + - Export diagrams as image files + - Perform impact analysis on potential object deletions + + +## ApexSQL BI Monitor + +Download page: [ApexSQL BI Monitor]
+Release date: 2018-09-18
+Support Version: 2008-2017
+Author: ApexSQL
+Free version: No
+Price: $499 + + - Monitor SSAS, SSIS and SSRS performance + - Add custom performance counters + - Track system performanceUse baselines to customize alert thresholds + - View real-time and historical data + - Set up various alert actions for each counter + - Generate built-in and custom reportsTrack user activity + + +## ApexSQL VM Monitor + +Download page: [ApexSQL VM Monitor]
+Release date: 2018-05-09
+Support Version: 2008-2017
+Author: ApexSQL
+Free version: No
+Price: $999 + +Virtualization performance monitoring + + - Monitor multiple hypervisors - Hyper-V and ESXi + - View system performance metrics of monitored hosts + - Monitor virtual machines performance + - Monitor performance of host devices + - Use comprehensive dashboards for viewing metrics + - Calculate baselines and thresholds + - View top 5 loaded virtual machines for specific hosts + - Create and export comprehensive performance reports + + +## ApexSQL VM Job + +Download page: [ApexSQL Job]
+Release date: 2018-03-29
+Support Version: 2008-2017
+Author: ApexSQL
+Free version: No
+Price: $499 + + - Manage SQL Server Agent jobs across multiple servers + - Get a detailed job history overview + - Manage SQL Server services on managed servers + - Export job details to PDF, HTML, XML or CSV format + - Manage SQL Server schedulesControl the status of SQL Server Agent services + - Define and manage SQL Server alertsMonitor SQL Server Agent logs + + +## ApexSQL Enforce + +Download page: [ApexSQL Enforce]
+Release date: 2018-07-19
+Support Version: 2008-2017
+Author: ApexSQL
+Free version: No
+Price: $299 + + - Review databases and individual SQL scripts + - Import and export rulesProcess unattended via the CLI + - Seamlessly integrate into your CI/CD processLeverage a library of 100+ pre-written rules + - Create custom rules with a built in IDE + - Write custom rules in C# or VB.NETCreate HTML reports and XML exports + - Integrate with SSMS and Visual Studio + - Generate SQL to fix violations + + +## DBBest T-SQL Analyzer + Download page: [DBBest T-SQL Analyzer]
Release date: 2015-03-13
Support Version: 2008/2012/2014
@@ -1701,7 +2438,8 @@ T-SQL Analyzer is a code analyzing tool for finding problematic spots in your Tr The tool analyzes stored procedures and user-defined functions in your SQL Server database against a predefined set of best practice rules. -## DBBest Database Compare Suite +## DBBest Database Compare Suite + Download page: [DBBest Database Compare Suite]
Release date: 2015-09-04
Support Version: 2008/2012/2014/2016
@@ -1712,7 +2450,8 @@ Price: $349 Comparing two production databases for migrating or upgrading -## Advanced Query Tool +## Advanced Query Tool + Download page: [Advanced Query Tool]
Release date: 2015-03-18
Support Version: 2008/2012/2014/2016
@@ -1724,7 +2463,8 @@ AQT provides a simple and easy-to-use interface to your many different databases Oracle, DB2 for LUW, DB2 for z/OS, DB2 for iSeries, Sybase ASE, **SQL Server**, Informix, MySQL, MS Access, SQLite, Other. -## SqlDiffFramework +## SqlDiffFramework + Download page: [SqlDiffFramework]
Release date: 2012-04-17
Support Version: 2008/2012/2014/2016
@@ -1739,13 +2479,14 @@ SqlDiffFramework compares two data sources and highlights both row and column di - Verify two systems have synchronized data -## DataGrip +## DataGrip + Download page: [DataGrip]
-Release date: 2016-05-06
-Support Version: 2008/2012/2014/2016
+Release date: 2018-02-21
+Support Version: 2008-2017
Author: Jet Brains
Free version: No
-Price: $199 +Price: $89 - Exploring your databases - Intelligent coding assistance @@ -1753,8 +2494,9 @@ Price: $199 - Among other things, DataGrip comes with user parameters support, CSV editor, diagram builder, version control support and many other features -## Pssdiag and Sqldiag Manager -Download page: [SQL Nexus Tool]
+## Pssdiag and Sqldiag Manager + +Download page: [Pssdiag and Sqldiag Manager]
Release date: 2015-04-17
Support Version: 2012/2014
Author: Jack Li
@@ -1766,9 +2508,10 @@ It was evolved and shipped with SQL Server 2005 and beyond. But the shipped prod Microsoft Product support continues to maintain a configuration tool that allows engineers to dynamically configure on what to collect. -## SQL Nexus Tool +## SQL Nexus Tool + Download page: [SQL Nexus Tool]
-Release date: 2014-05-06
+Release date: 2016-11-20
Support Version: 2008/2012/2014/2016
Author: Jack Li
Free version: Yes
@@ -1784,7 +2527,8 @@ It can dramatically reduce the amount of time you spend manually analyzing data - Among other things, DataGrip comes with user parameters support, CSV editor, diagram builder, version control support and many other features -## DBSophic Qure Profiler +## DBSophic Qure Profiler + Download page: [DBSophic Qure Profiler]
Release date: ?
Support Version: 2008/2012
@@ -1801,8 +2545,9 @@ SQL server trace analysis tool - No limitations on the number of SQL servers, databases, processors etc. -## DBSophic Qure Profiler -Download page: [DBSophic Qure Profiler]
+## DBSophic Qure Optimizer + +Download page: [DBSophic Qure Optimizer]
Release date: ?
Support Version: 2008/2012
Author: DBSophic
@@ -1812,8 +2557,9 @@ Price: ? The workload tuning solution that automatically optimizes millions of queries in one go -## RestoreChecker -Download page: [DBSophic Qure Profiler]
+## RestoreChecker + +Download page: [RestoreChecker]
Release date: 2015-01-15
Support Version: ?
Author: SQLServerUtilities
@@ -1824,104 +2570,1829 @@ RestoreChecker is a utility that restores SQL Server backup files in order to ve and in addition perform data integrity checks on the backups restored while offloading the intensive IO activity from your production servers. -## SQLScripter -Download page: [DBSophic Qure Profiler]
+## SQLScripter + +Download page: [SQLScripter]
Release date: 2009-08-24
Support Version: ?
Author: SQLServerUtilities
Free version: No
Price: $99 -SQLScripter is a powerful command line utility that scripts SQL Server objects. The utility is designed to automate the process of schema generation. +SQLScripter is a powerful command line utility that scripts SQL Server objects. +The utility is designed to automate the process of schema generation. -## SQLC +## SQLC + Download page: [SQLC]
-Release date: 2016-05-23
+Release date: 2017-11-19
Support Version: ?
Author: David Ingleton
Free version: Yes
Price: No -SQLC is a software tool for comparing two SQL Server databases. With SQLC you can perform Object comparison (Database schema) as well as Data comparison (Table data) +SQLC is a software tool for comparing two SQL Server databases. +With SQLC you can perform Object comparison (Database schema) as well as Data comparison (Table data) -[bcp Utility]:https://msdn.microsoft.com/en-us/library/ms162802.aspx -[GraphView]:https://github.com/Microsoft/GraphView -[Baseline Security Analyze]:https://www.microsoft.com/en-us/download/details.aspx?id=7558 -[Microsoft Log Parser]:https://www.microsoft.com/en-us/download/details.aspx?id=24659 -[tablediff Utility]:https://msdn.microsoft.com/en-us/library/ms162843.aspx -[Diskspd]:https://github.com/microsoft/diskspd -[HammerDB]:http://www.hammerdb.com/ -[Exchange Server Error Code Look-up]:https://www.microsoft.com/en-us/download/details.aspx?id=985 -[LINQPad]:https://www.linqpad.net/ -[SqlDynamite]:http://www.host-tracker.com/SqlDynamite -[SQL Server Data Tools]:https://msdn.microsoft.com/en-us/en-en/library/mt204009.aspx -[Database Health Monitor]:http://databasehealth.com/download/ -[SchemaDrift]:http://databasehealth.com/schemadrift/ -[dta Utility]:https://msdn.microsoft.com/en-us/library/ms162812.aspx -[osql Utility]:https://msdn.microsoft.com/en-us/library/ms162806.aspx -[sqldiag Utility]:https://msdn.microsoft.com/en-us/library/ms162833.aspx -[sqldumper Utility]:https://support.microsoft.com/en-us/kb/917825 -[SqlLocalDB Utility]:https://msdn.microsoft.com/en-us/library/hh212961.aspx -[sqllogship Utility]:https://msdn.microsoft.com/en-us/library/bb283327.aspx -[sqlservr Application]:https://msdn.microsoft.com/en-us/library/ms162819.aspx -[SQL XEvent Profiler]:https://www.idera.com/productssolutions/freetools/sqlxeventprofiler -[DLM Dashboard]:http://www.red-gate.com/products/dlm/dlm-dashboard/ -[Red Gate SQL Compare]:http://www.red-gate.com/products/sql-development/sql-compare/ -[Red Gate SQL Data Compare]:http://www.red-gate.com/products/sql-development/sql-data-compare/ -[Red Gate SQL Source Control]:http://www.red-gate.com/products/sql-development/sql-source-control/ -[Red Gate SQL Prompt]:http://www.red-gate.com/products/sql-development/sql-prompt/ -[Red Gate SQL Monitor]:http://www.red-gate.com/products/dba/sql-monitor/ -[Red Gate SQL Backup Pro]:http://www.red-gate.com/products/dba/sql-backup/ -[Red Gate SQL Doc]:http://www.red-gate.com/products/sql-development/sql-doc/ -[Red Gate SQL Data Generator]:http://www.red-gate.com/products/sql-development/sql-data-generator/ -[Red Gate SQL Dependency Tracker]:http://www.red-gate.com/products/sql-development/sql-dependency-tracker/ -[Red Gate SQL Multi Script]:http://www.red-gate.com/products/dba/sql-multi-script/ -[Red Gate SQL Index Manager]:http://www.red-gate.com/products/dba/sql-index-manager/ -[Red Gate SQL Comparison SDK]:http://www.red-gate.com/products/sql-development/sql-comparison-sdk/ -[DLM Automation]:http://www.red-gate.com/products/dlm/dlm-automation/ -[ReadyRoll]:http://www.red-gate.com/products/sql-development/readyroll/ -[SQL Check]: https://www.idera.com/productssolutions/freetools/sqlcheck -[SQL Fragmentation Analyzer]: https://www.idera.com/productssolutions/freetools/sqlfragmentationanalyzer/overview -[SQL Heat Map]: https://www.idera.com/productssolutions/freetools/sql-storage -[SQL Hekaton Memory Check]: https://www.idera.com/productssolutions/freetools/hekaton-memory-check-for-sql-memory-optimized-tables -[SQL Page Viewer]: https://www.idera.com/productssolutions/freetools/sql-server-page -[SQL Update Statistics]: https://www.idera.com/productssolutions/freetools/sql-server-statistics/overview -[SQL Statistics Aggregator]: https://www.idera.com/productssolutions/freetools/statistics-aggregator-for-performance-tuning-in-sql -[SQL Backup Status Reporter]: https://www.idera.com/productssolutions/freetools/sqlbackupstatusreporter/overview -[SQL Integrity Check]: https://www.idera.com/productssolutions/freetools/sqlintegritycheck/overview -[SQL Job Manager]: https://www.idera.com/productssolutions/freetools/sqljobmanager -[Azure SQL Database Backup]: https://www.idera.com/productssolutions/freetools/azuresqldatabasebackup -[SQL Column Search]: https://www.idera.com/productssolutions/freetools/sql-column-search -[SQL Permissions Extractor]: https://www.idera.com/productssolutions/freetools/sqlpermissionsextractor -[SQL BI Check]:https://www.idera.com/productssolutions/freetools/sql-bi-check -[SQL Inventory Check]:https://www.idera.com/productssolutions/freetools/sql-inventory-check -[SQL Diagnostic Manager]:https://www.idera.com/productssolutions/sqlserver/sqldiagnosticmanager -[SQL Safe Backup]:https://www.idera.com/productssolutions/sqlserver/sqlsafebackup -[SQL Compliance Manager]:https://www.idera.com/productssolutions/sqlserver/sqlcompliancemanager -[SQL Inventory Manager]:https://www.idera.com/productssolutions/sqlserver/sql-elements -[SQL Virtual Database]:https://www.idera.com/productssolutions/sqlserver/sqlvirtualdatabase -[SQL Secure]:https://www.idera.com/productssolutions/sqlserver/sqlsecure -[SQL Doctor]:https://www.idera.com/productssolutions/sqlserver/sqldoctor -[SQL Admin Toolset]:https://www.idera.com/productssolutions/sqlserver/sqladmintoolset -[SQL Defrag Manager]:https://www.idera.com/productssolutions/sqlserver/sqldefragmanager -[DBArtisan]:https://www.idera.com/dbartisan-database-administration-solution -[SQL BI Manager]:https://www.idera.com/productssolutions/sqlserver/sql-server-business-intelligence -[SQL Enterprise Job Manager]:https://www.idera.com/productssolutions/sqlserver/sql-server-agent-job -[DB Optimizer]:https://www.idera.com/dboptimizer-sql-database-optimization -[dbForge Schema Compare]: https://www.devart.com/dbforge/sql/schemacompare/ -[dbForge Data Compare]: https://www.devart.com/dbforge/sql/datacompare/ -[dbForge Data Generator]: https://www.devart.com/dbforge/sql/data-generator/ -[dbForge Query Builder]: https://www.devart.com/dbforge/sql/querybuilder/ -[dbForge Event Profiler]: https://www.devart.com/dbforge/sql/event-profiler/ -[dbForge SQL Decryptor]: https://www.devart.com/dbforge/sql/sqldecryptor/ -[dbForge Studio]:https://www.devart.com/dbforge/sql/studio/ -[dbForge Fusion]:https://www.devart.com/dbforge/sql/fusion/ -[sqlps Utility]: https://msdn.microsoft.com/en-us/library/cc280450.aspx -[sqlmaint Utility]: https://msdn.microsoft.com/en-us/library/ms162827.aspx -[Ssms Utility]: https://msdn.microsoft.com/en-us/library/ms162825.aspx -[dtexec Utility]: https://msdn.microsoft.com/en-us/library/hh231187.aspx +## Database Performance Analyzer + +Download page: [Database Performance Analyzer]
+Release date: ?
+Support Version: 2008-2017/Azure/Amazon
+Author: SolarWinds
+Free version: No
+Price: $1995 + +Monitor across your entire environment: physical servers, virtualized, and in the Cloud + + +## Database Performance Analyzer for MSSQL + +Download page: [Database Performance Analyzer for MSSQL]
+Release date: ?
+Support Version: 2008-2017/Azure/Amazon
+Author: SolarWinds
+Free version: No
+Price: $1995 + +Optimize and tune SQL Server deployed anywhere - physical, virtual, or cloud based. +Includes Azure SQL database, Azure virtual machines, and Amazon RDS. + + +## SQL Enlight + +Download page: [SQL Enlight]
+Release date: 2016-04-25
+Support Version: 2005/2008/2008R2/2012/2014
+Author: UbitSoft
+Free version: No
+Price: $295 + + - Advanced static analysis + - T-SQL code formatting + - Statements history + - Validate T-SQL code for syntax errors + - Script Summary + - Refactoring + - Continuous integration support + + +## Aireforge Studio + +Download page: [Aireforge Studio]
+Release date: 2017-06-21
+Support Version: 2008/2012/2014/2016/Azure
+Author: AireForge
+Free version: Yes
+Price: $299 + +Aireforge Studio contains a growing suite of tools that help administrators to stabilize, optimize & secure multiple database instances with ease. +Be it, keeping two instances in sync for recovery purposes or synchronizing the settings of over 200 replication subscribers; our tools will help. + + +## HexaTier + +Download page: [HexaTier]
+Release date: ?
+Support Version: ?
+Author: HexaTier
+Free version: No
+Price: ? + +Providing an all-in-one solution to protect your data from internal and external attacks with four key elements, including: +Database Security, Discovery of Sensitive Data. Dynamic Data Masking, and Database Activity Monitoring to comply with regulatory requirements. + + +## SoftTree SQL Assistant + +Download page: [SoftTree SQL Assistant]
+Release date: 2017-12-17
+Support Version: 2005/2008/2008R2/2012/2014/2016/2017
+Author: SoftTree
+Free version: No
+Price: $215 + + - Triples SQL developer productivity + - Improves code quality and accuracy + - Provides unmatched intelligent SQL code intellisense features + - Provides interactive SQL reference and SQL code assistance systems + - Provides advanced SQL code formatters and beautifiers; SQL syntax validation, code structure views for fast code navigation, and more... + + +## [DB Audit and Security 360] + +Download page: [DB Audit and Security 360]
+Release date: 2015-02-07
+Support Version: 2005/2008/2008R2/2012/2014/2016
+Author: SoftTree
+Free version: No
+Price: $499 + +DB Audit and Security 360 is a professional all-in-one database security and auditing solution for Oracle, Sybase, DB2, MySQL and Microsoft SQL Server. +DB Audit and Security 360 enables database and system administrators, security administrators, auditors and operators to track and analyze any database activity +including database security, access and usage, data creation, change or deletion. +What makes this solution really unique is its built-in support for multiple auditing methods giving you the flexibility to choose the best fit for your database security requirements. + + +## EMS SQL Management Studio + +Download page: [EMS SQL Management Studio]
+Release date: 2016-05-26
+Support Version: 2000/2005/2008/2008R2/2012/2014
+Author: EMS
+Free version: No
+Price: $257 + +EMS SQL Management Studio for SQL Server is a complete solution for Microsoft SQL Server database administration and development. +With components that focus on all critical MS SQL Server database management tasks, SQL Studio is a single workbench that provides +you with must-have tools for administering SQL Server databases, managing database schema and objects as well as for SQL Server database design, migration, extraction, SQL Server query building, data import, export and database comparison. SQL Studio unites these database tools for MSSQL Server in one powerful and easy-to-use environment that can work round the clock. Whether you are a database or application developer, DBA or business analyst, SQL Studio for SQL Server offers all essential SQL Server tools to make you more productive than ever before! + + +## EMS SQL Backup + +Download page: [EMS SQL Backup]
+Release date: 2016-04-13
+Support Version: 2000/2005/2008/2008R2/2012/2014
+Author: EMS
+Free version: Yes
+Price: $82 + +EMS SQL Backup for SQL Server is an effective tool for automating backup, restore and log shipping tasks on all SQL Servers in your company. +In addition, SQL Backup allows you to update statistics, perform re-indexing, truncate database, check database integrity and perform many other tasks that can be united into policies and deployed to SQL Servers in a few clicks. SQL Backup monitors the maintenance task execution, quickly investigates and resolves issues. + + +## EMS SQL Administrator + +Download page: [EMS SQL Administrator]
+Release date: 2015-04-14
+Support Version: 2000/2005/2008/2008R2/2012/2014
+Author: EMS
+Free version: Yes
+Price: $135 + +EMS SQL Administrator for SQL Server is a toolset for efficient SQL Server administration. +It provides a complete and easy-to-use set of tools for administering SQL Server. +SQL Administrator is designed specifically for database administrators and allows you to perform administrative tasks in the fastest, easiest and most efficient way. + + +## EMS SQL Manager + +Download page: [EMS SQL Manager]
+Release date: 2016-05-26
+Support Version: 2000/2005/2008/2008R2/2012/2014
+Author: EMS
+Free version: Yes
+Price: $135 + +EMS SQL Manager for SQL Server is a high performance graphical tool for Microsoft SQL Server database development and administration. +It makes creating and editing MS SQL Server database objects easy and fast, and allows you to run SQL scripts, manage SQL server users and their privileges, build SQL queries visually, work with metadata, export and import SQL Server database data and much more. + + +## EMS Data Export + +Download page: [EMS Data Export]
+Release date: 2016-04-29
+Support Version: -
+Author: EMS
+Free version: No
+Price: $47 + +EMS Data Export for SQL Server is a powerful tool to export SQL Server database data quickly to any of 20 available formats, +including MS Access, MS Excel, MS Word, RTF, HTML, TXT, ODF and more. +Data Export for SQL Server has a friendly wizard, which allows you to set various options of SQL Server export process visually and a command-line utility to automate your SQL Server export jobs using the configuration file. + + +## EMS Data Import + +Download page: [EMS Data Import]
+Release date: 2016-04-14
+Support Version: -
+Author: EMS
+Free version: No +Price: $47 + +EMS Data Import for SQL Server is a powerful tool to import data to SQL Server tables from MS Excel 97-2007, MS Access, DBF, TXT, CSV, MS Word, RTF, ODF and HTML files. This utility allows you to quickly import data to one or several SQL Server tables or views at once, save all SQL Server import parameters set on current wizard session, use special batch insert mode to import SQL Server data at the maximum possible speed and much more. + + +## EMS Data Pump + +Download page: [EMS Data Pump]
+Release date: 2016-11-03
+Support Version: -
+Author: EMS
+Free version: No
+Price: $47 + +EMS Data Pump for SQL Server is an excellent migration tool for converting databases and importing table data from an ADO-compatible source (e.g. MS Access, MySQL or any other database with ADO support) to SQL Server databases. Database conversion and migration become as easy as possible with Data Pump for SQL Server! + + +## EMS Data Generator + +Download page: [EMS Data Generator]
+Release date: 2010-07-10
+Support Version: -
+Author: EMS
+Free version: No
+Price: $47 + +EMS Data Generator for SQL Server is an impressive tool for generating test data to SQL Server database tables. +The utility can help you to simulate the database production environment and allows you to populate several SQL Server database tables with test data simultaneously, define tables for generating data, set value ranges, control a wide variety of generation parameters for each field type and much more. It has plenty of powerful functionalities to generate SQL Server test data in a simple and direct way. + + +## EMS DB Comparer + +Download page: [EMS DB Comparer]
+Release date: 2015-07-24
+Support Version: -
+Author: EMS
+Free version: No
+Price: $47 + +EMS DB Comparer for SQL Server is an excellent tool for comparing SQL Server database schemas and discovering differences in their structures. +You can view all the differences in compared database objects and execute an automatically generated script to synchronize structure of SQL Server databases and eliminate these differences. Define comparison parameters and many other features make your work with our tool for SQL Server database synchronization easy and fast. + +## EMS DB Extract + +Download page: [EMS DB Extract]
+Release date: 2008-10-16
+Support Version: -
+Author: EMS
+Free version: No
+Price: $47 + +EMS DB Extract for SQL Server is an impressive and easy-to-use tool for creating SQL Server database backups in a form of SQL scripts. +This database script utility allows you to save metadata of all SQL Server database objects as well as SQL Server table data as database snapshots. +Flexible customization of the extract process enables you to select objects and data tables for SQL Server database dump and tune many other extract options. + + +## EMS SQL Query + +Download page: [EMS SQL Query]
+Release date: 2012-03-29
+Support Version: -
+Author: EMS
+Free version: No
+Price: $47 + +EMS SQL Query for SQL Server is a useful tool that lets you quickly and simply build SQL queries to SQL Server databases. Visual SQL Server query building as well as direct editing of a query text is available. User-friendly graphical interface allows you to connect to SQL Server databases, select tables and fields for a query to SQL Server, set the selection criteria and many more. + + +## EMS Data Comparer + +Download page: [EMS Data Comparer]
+Release date: 2012-11-16
+Support Version: -
+Author: EMS
+Free version: No
+Price: $47 + +EMS Data Comparer for SQL Server is a powerful and easy-to-use tool for SQL Server data comparison and synchronization. +Using this utility you can view all the differences in compared SQL Server tables and execute an automatically generated script to eliminate these differences. Data Comparer for SQL Server provides a wide range of configuration parameters for fast and effective data comparison and synchronization of SQL Server databases. + + +## NitroAccelerator + +Download page: [NitroAccelerator]
+Release date: 2016-07-10
+Support Version: 2008/2012/2014/2016
+Author: Nitrosphere
+Free version: No
+Price: $1265 + +Accelerates and Secures SQL Server network traffic resulting in orders of magnitude performance improvement while securing the data across the network. + + +## ERwin Data Modeler + +Download page: [ERwin Data Modeler]
+Release date: 2016-06-03
+Support Version: 2008/2012/2014/2016
+Author: ERwin
+Free version: No
+Price: $810 + +ERwin Data Modeler is an industry-leading data modeling solution that provides a simple, visual interface to manage your complex data environment + + +## Toad Data Modeler + +Download page: [Toad Data Modeler]
+Release date: 2016-06-16
+Support Version: 2008/2012/2014
+Author: Dell
+Free version: No
+Price: $562 + +Easily create high-quality data models. Toad Data Modeler enables you to rapidly deploy accurate changes to data structures across more than 20 different platforms. +It allows you to construct logical and physical data models, compare and synchronize models, quickly generate complex SQL/DDL, create and modify scripts, as well as reverse and forward engineer both databases and data warehouse systems + + +## SQL Power Architect + +Download page: [SQL Power Architect]
+Release date: 2016-02-11
+Support Version: 2008/2012/2014
+Author: SQLPower
+Free version: Yes
+Price: $995 + +The SQL Power Architect data modeling tool was created by data warehouse designers and has many unique features geared specifically for the data warehouse architect. +It allows users to reverse-engineer existing databases, perform data profiling on source databases, and auto-generate ETL metadata. + + +## DbWrench + +Download page: [DbWrench]
+Release date: 2016-07-06
+Support Version: 2008/2012/2014
+Author: Nizana Systems
+Free version: No
+Price: $99 + + - makes creating and modifying databases quicker and easier + - streamlines many common database tasks + - supports many operating systems and databases in a single license + + +## Navicat Data Modeler + +Download page: [Navicat Data Modeler]
+Release date: 2016-08-01
+Support Version: 2008/2012/2014/2016
+Author: PremiumSoft
+Free version: No
+Price: $199 + +Navicat Data Modeler is a powerful and cost-effective database design tool which helps you build high-quality conceptual, logical and physical data models. +It allows you to visually design database structures, perform reverse/forward engineering processes, import models from ODBC data sources, generate complex SQL/DDL, print models to files, and much more. + + +## DeZign for Databases + +Download page: [DeZign for Databases]
+Release date: 2016-04-25
+Support Version: 2008/2012/2014
+Author: Datanamic
+Free version: No
+Price: $259 + +DeZign for Databases is an intuitive database design and modeling tool for developers and DBA's that can help you model, create and maintain databases. +The software uses entity relationship diagrams (ERDs, data models) to graphically design databases and automatically generates the most popular SQL and desktop database. + + +## ERDesigner NG + +Download page: [ERDesigner NG]
+Release date: 2013-04-10
+Support Version: 2008/2012/2014
+Author: Mirko Sertic
+Free version: Open Source
+Price: No + +The Mogwai ERDesigner is an entity relationship modeling/design tool(ERD) such as ERWin and co. The only difference is that it is Open Source and does not cost anything. +It was designed to make database modeling as easy as it can be and to support the developer in the whole development process, from database design to schema and code generation. + + +## Vertabelo + +Download page: [Vertabelo]
+Release date: ?
+Support Version: 2012
+Author: Vertabelo
+Free version: No
+Price: $948 + +Design your database online but very expensive + + +## dbDiffo + +Download page: [dbDiffo]
+Release date: ?
+Support Version: ?
+Author: Contenet Ltd
+Free version: Yes
+Price: No + +dbDiffo - The free online database schema designer + + +## SQL DXP + +Download page: [SQL DXP]
+Release date: 2016-06-20
+Support Version: 2008/2012/2014/Azure
+Author: SQL Delte
+Free version: No
+Price: $530 + +SQL DXP compares databases on different server platforms and can generate scripts to make the source database generally the same as the target database regardless of platform. + + +## Aqua Data Studio + +Download page: [Aqua Data Studio]
+Release date: 2016-07-06
+Support Version: 2008/2012/2014
+Author: AquaFold
+Free version: No
+Price: $499 + +Aqua Data Studio is productivity software for Database Developers, DBAs, and Analysts. +It allows you to develop, access, manage, and visually analyze data. +Whether you are working with relational, nosql or cloud databases, your data is easily and quickly accessible with Aqua Data Studio. +It supports all major database vendors, works on all major operating systems and is localized to 9 languages. + + +## RazorSQL + +Download page: [RazorSQL]
+Release date: 2016-09-29
+Support Version: 2008/2012/2014/2016
+Author: Richardson Software
+Free version: No
+Price: $100 + +The MS SQL Server database query tool features provided by RazorSQL include a custom MS SQL Server database browser tailored to SQL Server, +a Transact-SQL SQL editor with Transact SQL and SQL Server specific features and syntax highlighting, custom SQL Server visual tools, +and SQL Server specific database administration tools. + + +## SQL Pretty Printer + +Download page: [SQL Pretty Printer]
+Release date: 2016-02-19
+Support Version: 2008/2012/2014/2016
+Author: Gudu Software
+Free version: No
+Price: $50 + +SQL Pretty Printer Desktop Version allows you to format your SQL wherever you are regardless of your Internet connection. +It generates various output formats, including text, colorful html (Used in web, blog, wiki, forums) and RTF. +Batch mode enables you to clean up SQL in multifiles under a nested directory. +While sitting in the tray, you can format SQL in any editor like Microsoft Query Analyzer, UltraEditor or notepad with just one hotkey. + + +## Database .NET + +Download page: [Database .NET]
+Release date: 2018-08-20
+Support Version: 2008-2017
+Author: fish's dotNET
+Free version: Non-commercial
+Price: $69 + +Database .NET is an innovative, powerful and intuitive multiple database management tool. +You can browse/grant objects, design tables, edit rows, run queries, generate scripts, analyze/monitor SQL and import/export/migrate/sync data with a consistent interface. + + +## dbMigration .NET + +Download page: [dbMigration .NET]
+Release date: 2018-08-20
+Support Version: 2008-2017
+Author: fish's dotNET
+Free version: Non-commercial
+Price: $49 + +dbMigration .NET is a simple, easy and intuitive multiple database migration and sync tool. +With it you can easily migrate schema and data between different databases without complicated procedures. + + +## Is It SQL + +Download page: [Is It SQL]
+Release date: 2017-04-06
+Support Version: 2005/2008/2012/2014/2016
+Author: Bill Graziano
+Free version: Non-commercial
+Price: No + + - Supports SQL Server 2005 through SQL Server 2016 + - Monitor CPU usage for SQL Server and non-SQL Server tasks + - Capture batch requests per second + - Monitor Disk I/onsite + - Monitor waits + - Show actively running queries + - Capture basic demographic information including version, start time, database sizes, etc. + - Can run with no installation or it can be run as a service + + +## Database Experimentation Assistant Technical Preview 2 + +Download page: [Database Experimentation Assistant]
+Release date: 2017-03-24
+Support Version: 2005/2008/2012/2014/2016
+Author: Microsoft
+Free version: Yes
+Price: No + +Database Experimentation Assistant is the new A/B testing solution for SQL Server upgrades, enables customers to gather performance +insights for upgrades by conducting experiments across two SQL Server versions using production workloads enabling customers to conduct +experiments on database workloads across two versions of SQL Server. + + +## Data Platform Studio + +Download page: [Data Platform Studio]
+Release date: ?
+Support Version: SQL Server, SQL Azure
+Author: Red Gate Software
+Free version: Yes
+Price: ? + +Simplify the process of migrating data from your on-premise SQL Server to Azure SQL Data Warehouse with the Data Platform Studio importer. +Automatically, and in far less time than it takes to handle migrations manually, it: + - Makes schema compatibility fixes to prepare your Azure SQL Data Warehouse for your database + - Compresses your data so it uploads to Azure efficiently + - Utilizes the MPP power of Azure SQL Data Warehouse to ingest the data quickly + + + +## Flyway +Download page: [Data Platform Studio]
+Release date: 2018-01-30
+Support Version: Oracle, SQL Server, SQL Azure, MySQL, Other
+Author: boxfuse
+Free version: Open Source
+Price: $950 + +Flyway is an open-source database migration tool. It strongly favors simplicity and convention over configuration. +It is based around just 6 basic commands: Migrate, Clean, Info, Validate, Baseline and Repair. +Migrations can be written in SQL (database-specific syntax (such as PL/SQL, T-SQL, ...) is supported) or Java (for advanced data transformations or dealing with LOBs). +It has a Command-line client. If you are on the JVM, we recommend using the Java API (also works on Android) for migrating the database on application startup. Alternatively, you can also use the Maven plugin, Gradle plugin, SBT plugin or the Ant tasks. + + + +## Liquibase +Download page: [Liquibase]
+Release date: 2018-04-11
+Support Version: Oracle, PostgreSQL, MySQL, Other
+Author: Liquibase
+Free version: Open Source
+Price: No + +Liquibase is an open source database-independent library for tracking, managing and applying database schema changes. +It was started in 2006 to allow easier tracking of database changes, especially in an agile software development environment. + +All changes to the database are stored in text files (XML, YAML, JSON or SQL) and identified by a combination of an "id" and "author" tag as well as the name of the file itself. +A list of all applied changes is stored in each database which is consulted on all database updates to determine what new changes need to be applied. +As a result, there is no database version number but this approach allows it to work in environments with multiple developers and code branches. +Liquibase automatically creates DatabaseChangeLog Table and DatabaseChangeLogLock Table when you first execute a changeLog File. + + + +## My Batis +Download page: [My Batis]
+Release date: 2018-03-20
+Support Version: Oracle, PostgreSQL, MySQL, Other
+Author: My Batis
+Free version: Open Source
+Price: No + +MyBatis Schema Migration System (or MyBatis Migrations for short) seeks to: + - Work with any database, new or existing + - Leverage the source control system (e.g. Subversion) + - Enable concurrent developers or teams to work independently + - Allow conflicts very visible and easily manageable + - Allow for forward and backward migration (evolve, devolve respectively) + - Make the current status of the database easily accessible and comprehensible + - Enable migrations despite access privileges or bureaucracy + - Work with any methodology + - Encourages good, consistent practices + + +## SentryOne Plan Explorer + +Download page: [SentryOne Plan Explorer]
+Release date: 2017-05-25
+Support Version: 2008-2017
+Author: SentryOne
+Free version: Yes
+Price: No + + - Index Analysis: Discover a new, easy way to gauge the impact of potential index changes. + - Statistics Analysis with Histogram + - Query Performance Profiling and Playback + - Actual Plan Recosting + - Plan Diagram + - Management Studio Add-In + - Tuning History and Comments + - Multiple Documents + + +## SQL Sentry + +Download page: [SQL Sentry]
+Release date: 2016-12-07
+Support Version: ?
+Author: SentryOne
+Free version: No
+Price: ? + +Get the most complete coverage for SQL Server and Windows. Simplify performance tuning by visualizing where problems exist for faster resolution. Streamline your defragmentation process and query tuning all in one place. +We have combined all the great SQL Sentry tools into a single unified solution to help you monitor and optimize the Microsoft data platform. +Everything you need for: SQL Server and Windows Performance Monitoring, Event Management, Index Defragmentation and Query Plan Analysis, with Desktop, Web, and Mobile UIs. + + +## dbMonitor + +Download page: [dbMonitor]
+Release date: 2012-11-01
+Support Version: ?
+Author: Devart
+Free version: Yes
+Price: No + + +To extend monitoring capabilities of our data access products there is an additional tool called dbMonitor. It is easy-to-use tool to provide visual monitoring of your database applications. +dbMonitor performs per-component tracing of database events such as commit, rollback, SQL statement execute, creating and destroying components, connection pooling events etc. + + +## DBmaestro TeamWork + +Download page: [DBmaestro TeamWork]
+Release date: ?
+Support Version: ?
+Author: DBmaestro
+Free version: No
+Price: ? + +DBmaestro is bringing the agility of Automation and DevOps, with an innovative solution for evolutionary database development, safe build automation, and failsafe continuous delivery in any environment. + - Database Release Automation + - Database Merge and Build Automation + - Database Enforced Source Control + - Database Enhanced Security and Regulatory Compliance + + +## xSQL Schema Compare + +Download page: [xSQL Schema Compare]
+Release date: 2017-03-01
+Support Version: 2005/2008/2012/2014/2016, Azure
+Author: xSQL Software
+Free version: Yes
+Price: $399 + +Compare the schemas of two SQL Server databases, review differences, generate synchronization script and execute it. + + +## xSQL Data Compare + +Download page: [xSQL Data Compare]
+Release date: 2017-06-26
+Support Version: 2005/2008/2012/2014/2016, Azure
+Author: xSQL Software
+Free version: Yes
+Price: $399 + +Data Compare for SQL Server is a tool for comparing and synchronizing the data in two SQL Server databases. +You can use it for data migration, auditing, replication verification, populating development databases with production data etc. + + +## xSQL Script Executor + +Download page: [xSQL Script Executor]
+Release date: 2015-02-25
+Support Version: 2000 and higher
+Author: xSQL Software
+Free version: Yes
+Price: $249 + +Script Executor is a professional grade database tool that allows you to deploy multiple Sql scripts on one or more target servers with a click of a button. +Scripts can be deployed directly from the GUI, from the command line or they can be wrapped into an executable. + + +## xSQL Builder + +Download page: [xSQL Builder]
+Release date: 2017-03-15
+Support Version: 2005/2008/2012/2014/2016, Azure
+Author: xSQL Software
+Free version: No
+Price: $799 + +xSQL Builder is a SQL Server tool that allows for automating the deployment of SQL Server based solutions. +It generates executable packages that contain all the information and logic required to deploy the database to the clients' environments regardless of whether it is a first time deployment or an upgrade from a previous version. + + +## xSQL Documenter + +Download page: [xSQL Documenter]
+Release date: 2017-01-04
+Support Version: 2000 to 2016
+Author: xSQL Software
+Free version: No
+Price: $199 + +Comprehensive, uniform, and easily navigable database documentation in HTML and compiled CHM format. + + +## xSQL Profiler + +Download page: [xSQL Profiler]
+Release date: 2017-06-28
+Support Version: 2005/2008/2012/2014/2016, Azure
+Author: xSQL Software
+Free version: Yes
+Price: $999 + +xSQL Profiler is a SQL tracing tool that provides for monitoring multiple SQL Servers from one central location. +Traces can be customized and scheduled to run on certain servers at certain times and all trace data is automatically collected into the central repository. + + +## xSQL Schema Compare SDK + +Download page: [xSQL Schema Compare SDK]
+Release date: 2017-10-25
+Support Version: 2000 to 2016
+Author: xSQL Software
+Free version: No
+Price: $1499 + +Schema Compare SDK is a set of class libraries that allows you to perform schema comparison and synchronization for SQL Server databases in your .NET or ASP.NET applications. + + +## xSQL RSS Reporter + +Download page: [xSQL RSS Reporter]
+Release date: 2014-11-25
+Support Version: 2005/2008/2012/2014
+Author: xSQL Software
+Free version: No
+Price: $169 + +RSS Reporter is a tool that generates standard Atom or RSS feeds for: + - SQL Server job execution history + - SQL Server job definition + - The output of any T-SQL query + - Database size and space usage + + +## xSQL Database Searcher + +Download page: [xSQL Database Searcher]
+Release date: 2017-05-09
+Support Version: 2005/2008/2012/2014/2016, Azure
+Author: xSQL Software
+Free version: Yes
+Price: No + +Database Searcher, previously known as "xSQL Object Search", is a free tool that allows you to search the schema of SQL Server databases. + + +## Cloud-based DB Monitoring Platform + +Download page: [Cloud-based DB Monitoring Platform]
+Release date: ?
+Support Version: ?
+Author: SQLTreeo
+Free version: No
+Price: €180 + + - Charts-on-charts technology, 24/7/365. + - Alerting via Windows, Android and iOS. + - Drill down into detailed history charts. + - Send instant messages within your secured network. + + +## SchemaCrawler + +Download page: [SchemaCrawler]
+Release date: 2017-02-27
+Support Version: Oracle, PostgreSQL, MySQL, Other
+Author: Sualeh Fatehi
+Free version: Open Source
+Price: No + +SchemaCrawler is a free database schema discovery and comprehension tool. SchemaCrawler has a good mix of useful features for data governance. +You can search for database schema objects using regular expressions, and output the schema and data in a readable text format. The output serves for +database documentation, and is designed to be diff-ed against other database schemas. SchemaCrawler also generates schema diagrams. You can execute scripts in any standard scripting language against your database. You can find potential schema design issues with lint. +SchemaCrawler supports almost any database that has a JDBC driver, but for convenience is bundled with drivers for some commonly used RDBMS systems. SchemaCrawler works with any operating system that supports Java SE 8, Compact Profile 2 or better. + + +## SA MaaS Microsoft SQL Server + +Download page: [SA MaaS Microsoft SQL Server]
+Release date: ?
+Support Version: ?
+Author: SENTINELAGENT
+Free version: No
+Price: ? + +SA MaaS Microsoft SQL Server for on-premise and virtual Microsoft SQL servers gathers, stores and analyzes raw Microsoft recommended health & performance +diagnostics to help network admins and DBAs keep SQL servers running at peak performance and find the logs they need. + + +## CatCompare v2 + +Download page: [CatCompare v2]
+Release date: 2017-01-07
+Support Version: ?
+Author: Andy Leonard
+Free version: No
+Price: $295 + +CatCompare provides automate-able command-line management of SSIS Catalog project configuration, deployment, migration, code promotion, and comparison. + + +## SSIS Catalog Compare v2.0 Bundle + +Download page: [SSIS Catalog Compare v2.0 Bundle]
+Release date: 2017-01-06
+Support Version: ?
+Author: Andy Leonard
+Free version: No
+Price: $495 + +Deploying SSIS Catalog Projects help deploying environments, references, mappings, and overrides. +The SSIS Catalog Compare Version 2.0 Bundle includes SSIS Catalog Compare and CatCompare, a CLI (Command-Line Interface) utility. + + +## MS Kerberos Configuration Manager + +Download page: [MS Kerberos Configuration Manager]
+Release date: 2017-01-31
+Support Version: 2008/2012/2014/2016
+Author: Microsoft
+Free version: Yes
+Price: No + +Microsoft Kerberos Configuration Manager for SQL Server is a diagnostic tool that helps troubleshoot Kerberos related connectivity issues with SQL Server, SQL Server Reporting Services, and SQL Server Analysis Services. + + +## Spotlight + +Download page: [Spotligh]
+Release date: ?
+Support Version: 2008/2012/2014/2016
+Author: Quest Software
+Free version: Yes
+Price: ? + +Can diagnose SQL Server performance issues quickly and accurately, ensuring a healthy database infrastructure. + + +## DBConvert Studio + +Download page: [DBConvert Studio]
+Release date: 2017-03-01
+Support Version: ?
+Author: DMSoft Technologies
+Free version: Yes
+Price: 499 + +DBConvert Studio Software combines familiar and powerful features from the mature DBConvert and DBSync product series along with a redesigned and improved UI. +The following scenarios are available: + - Simple master to slave migration + - One-way Synchronization + - Bidirectional synchronization + - Data distribution (data flows from one source database to multiple destinations) + + +## DbDefence + +Download page: [DbDefence]
+Release date: 2017-03-01
+Support Version: 2005/2008/2012/2014/2016
+Author: ActiveCrypt Software
+Free version: Yes
+Price: $698 + +DbDefence for Microsoft SQL Server implements server-side encryption and additional level of protection for databases. +With DbDefence you can hide table structure and data from prying eyes, even from DBA. Free version for databases less than 200 MB. + + +## SQL Server Migration Assistant for MySQL + +Download page: [SQL Server Migration Assistant for MySQL]
+Release date: 2017-02-17
+Support Version: 2005/2008/2012/2014/2016/Azure
+Author: Microsoft
+Free version: Yes
+Price: No + +Microsoft SQL Server Migration Assistant (SSMA) for MySQL is a tool to automate migration from MySQL database(s) to SQL Server and Azure SQL DB. + + +## sqlcmd for Mac and Linux + +Download page: [sqlcmd for Mac and Linux]
+Release date: 2017-01-26
+Support Version: 2005/2008/2012/2014/2016/Azure
+Author: Soheil Rashidi
+Free version: Open Source
+Price: No + +sqlcmd utility for Mac and Linux + + +## SQL Migrator + +Download page: [SQL Migrator]
+Release date: ?
+Support Version: 2005/2008/2012/2014/2016
+Author: Datamate Technology
+Free version: ?
+Price: ? + +Automatically upgrade objects within a SQL Server Instance from lower to higher versions or just refresh Objects between the same Versions + + +## MS FoxPro to MS SQL Migration and Sync + +Download page: [MS FoxPro to MS SQL Migration and Sync]
+Release date: 2013-10-08
+Support Version: 2005/2008/2012/Azure
+Author: DMSoft Technologies
+Free version: No
+Price: $149 + +Our software helps to migrate and synchronize MS Visual FoxPro databases .DBC or MS Visual FoxPro free tables .DBF to MS SQL Server. +It combines an easy-to-use interface with bunch of customization options, so your migration and replication of data can be fulfilled smoothly and rapidly. + +Approximately 1 Million of records from FoxPro to MSSQL Server with "Bulk" option activated can be converted in 8 minutes. + + +## MySQL to MS SQL Migration and Sync + +Download page: [MySQL to MS SQL Migration and Sync]
+Release date: 2013-10-08
+Support Version: 2005/2008/2012/Azure
+Author: DMSoft Technologies
+Free version: No
+Price: $149 + +Our software automates conversion and synchronization of your databases from MySQL to MS SQL Server. +Transfer the entire database or select only needed dataset at customization stage in easy-to-use wizard style GUI. + +Views migration between MS SQL and MySQL in both directions is available. You don’t need to know any differences in SQL syntax. +Every view will be converted from source db to target automatically. + +Integrated Data Types Mapping feature helps to find and map similar data types between MySQL and MS SQL Server to make cross database conversion more flexible. + + +## Oracle to MS SQL Migration and Sync + +Download page: [Oracle to MS SQL Migration and Sync]
+Release date: 2013-10-09
+Support Version: 2005/2008/2012/Azure
+Author: DMSoft Technologies
+Free version: No
+Price: $149 + +Convert and synchronize databases from Oracle to MS SQL Server efficiently and fast. +Automatic views conversion from Oracle to MS SQL is easily performed with our software even with no any knowledge in differences between SQL dialects. +Besides, any server access restrictions may be overcome by creating dump files instead of direct connection to a target database. + +Our tool easily handles huge databases and tables. A clear easy-to-use wizard interface helps you to move the whole database or only selected tables, indexes and foreign keys effortlessly. + + +## PostgreSQL to MS SQL Migration and Sync + +Download page: [PostgreSQL to MS SQL Migration and Sync]
+Release date: 2013-10-08
+Support Version: 2005/2008/2012/Azure
+Author: DMSoft Technologies
+Free version: No
+Price: $149 + +Convert and synchronize your databases from PostgreSQL to MS SQL server or to SQL Azure databases using our powerful software. +Wizard style interface will guide you through several steps performing migration and replication jobs easily and effectively. + +In case you have any server restrictions, you can stuff MS SQL Dump file with all data out of the PostgreSQL database. + +Our software will save you hours of learning SQL commands as any large PostgreSQL db can be converted and synchronized approximately in 5-10 min. + + +## MS Excel to MS SQL Migration + +Download page: [MS Excel to MS SQL Migration]
+Release date: 2013-09-23
+Support Version: 2005/2008/2012/Azure
+Author: DMSoft Technologies
+Free version: No
+Price: $149 + +Ability to create tables from MS Excel file with Integrated Data Selector +Microsoft Excel 2000 or higher 2003/2007/2010 +Views conversion from MS SQL to MySQL and Oracle and back support +Bi-directional synchronization between MS SQL, MySQL, Oracle and PostgreSQL +Saving data into a MS SQL Dump for export to MS SQL database + + +## SQLite to MS SQL Migration and Sync + +Download page: [SQLite to MS SQL Migration and Sync]
+Release date: 2014-05-08
+Support Version: 2005/2008/2012/Azure
+Author: DMSoft Technologies
+Free version: No
+Price: $149 + +Conversion Tool for data migration and synchronization between SQLite and MS SQL databases in both directions. +One of the main benefit of this converter is the range of effective features that help you to transfer all database objects together or each individually, +skipping unnecessary tables, fields, indexes, foreign keys and constrains; change data types for various fields; rename each database element and many other options. + +If you have any restrictions on direct access to MS SQL server our product provides you with the opportunity to create Dump files for further data uploading to MS SQL server. + + +## IBM DB2 to MS SQL Migration and Sync + +Download page: [IBM DB2 to MS SQL Migration and Sync]
+Release date: 2013-09-09
+Support Version: 2005/2008/2012/Azure
+Author: DMSoft Technologies
+Free version: No
+Price: $149 + +Our robust and cost-effective solution is a key for successful conversion and synchronization from IBM DB2 to MS SQL server. +Software is able to connect to source and destination databases directly without any other additional software installed. +Optionally target SQL Dump file may be generated if you haven’t a direct access to the MS SQL server. + + +## MS Access to MS SQL Migration and Sync + +Download page: [IBM DB2 to MS SQL Migration and Sync]
+Release date: 2013-10-08
+Support Version: 2005/2008/2012/Azure
+Author: DMSoft Technologies
+Free version: No
+Price: $149 + +Powerful cross database software that will upsize and synchronize Access data into MS SQL database. + +The program allows migrating MS Access queries to MSSQL views automatically with no need to know about the differences between SQL dialects. + + +## Firebird to MS SQL Migration and Sync + +Download page: [Firebird to MS SQL Migration and Sync]
+Release date: 2013-09-11
+Support Version: 2005/2008/2012/Azure
+Author: DMSoft Technologies
+Free version: No
+Price: $149 + +All Firebird / InterBase versions support +Saving data into a Firebird Dump +Views conversion from MS SQL to MySQL and Oracle and back support +Bi-directional synchronization between MS SQL, MySQL, Oracle and PostgreSQL + + +## SQLines SQL Converter + +Download page: [SQLines SQL Converter]
+Release date: ?
+Support Version: ?
+Author: Dmtolpeko
+Free version: Open Source
+Price: No + +SQLines SQL Converter is an open source tool (Apache License 2.0) that allows you to convert database schema (DDL), +queries and DML statements, views, stored procedures, packages, functions and triggers between Microsoft SQL Server, +Oracle, MariaDB, MySQL, PostgreSQL, IBM DB2, Sybase, Informix, Teradata, Greenplum and Netezza. + + +## SQLite & SQL Server Compact Toolbox + +Download page: [SQLite & SQL Server Compact Toolbox]
+Release date: ?
+Support Version: ?
+Author: ErikEJ
+Free version: Open Source
+Price: No + +Visual Studio & SSMS 2016 extension, standalone app and command line tools, for managing all aspects of your SQL Server Compact/SQLite database files' data and schema, including generation of code, database diagrams and database documentation. + + +## SqlPad + +Download page: [SqlPad]
+Release date: ?
+Support Version: ?
+Author: Rickbergfalk
+Free version: Open Source
+Price: No + +A web app for writing and running SQL queries and visualizing the results. Supports Postgres, MySQL, SQL Server, Crate, Vertica, and Presto. Written in Node.js. + + +## Html-query-plan + +Download page: [Html-query-plan]
+Release date: ?
+Support Version: ?
+Author: JustinPealing
+Free version: Open Source
+Price: No + +Html-query-plan is a JavaScript library for showing Microsoft SQL Server execution plans in HTML. + + +## SqlQueryStress + +Download page: [SqlQueryStress]
+Release date: ?
+Support Version: ?
+Author: Adam Machanic
+Free version: Open Source
+Price: No + +SQL query stress simulator created by Adam Machanic http://sqlblog.com/blogs/adam_machanic/archive/2016/01/04/sqlquerystress-the-source-code.aspx + + +## SQL Server Migration Assistant for DB2 + +Download page: [SQL Server Migration Assistant for DB2]
+Release date: 2017-02-17
+Support Version: 2005/2008/2012/2014/2016/Azure
+Author: Microsoft
+Free version: Yes
+Price: No + +Microsoft SQL Server Migration Assistant (SSMA) for DB2 is a tool to automate migration from DB2 database(s) to SQL Server and Azure SQL DB. + + +## SQL Server Migration Assistant for Oracle + +Download page: [SQL Server Migration Assistant for Oracle]
+Release date: 2017-02-17
+Support Version: 2005/2008/2012/2014/2016/Azure
+Author: Microsoft
+Free version: Yes
+Price: No + +Microsoft SQL Server Migration Assistant (SSMA) for Oracle is a tool to automate migration from Oracle database(s) to SQL Server and Azure SQL DB. + + +## SQL Server Migration Assistant for Access + +Download page: [SQL Server Migration Assistant for Access]
+Release date: 2017-02-17
+Support Version: 2005/2008/2012/2014/2016/Azure
+Author: Microsoft
+Free version: Yes
+Price: No + +Microsoft SQL Server Migration Assistant (SSMA) for Access is a tool to automate migration from Access database(s) to SQL Server and Azure SQL DB. + + +## mssql for Visual Studio Code + +Download page: [mssql for Visual Studio Code]
+Release date: 2017-02-02
+Support Version: ?
+Author: Microsoft
+Free version: Open Source
+Price: No + +mssql for Visual Studio Code an extension for developing Microsoft SQL Server, Azure SQL Database and SQL Data Warehouse everywhere with a rich set of functionalities, including: + - Connect to Microsoft SQL Server, Azure SQL Database and SQL Data Warehouses + - Create and manage connection profiles and most recently used connections + - Write T-SQL script with IntelliSense, Go to Definition, T-SQL snippets, syntax colorizations, T-SQL error validations and GO batch separator + - Execute your scripts and view results in a simple to use grid + - Save the result to json or csv file format and view in the editor + - Customizable extension options including command shortcuts and more + + +## Microsoft Assessment and Planning + +Download page: [Microsoft Assessment and Planning]
+Release date: 2017-02-10
+Support Version: 2008/2008R2/2012
+Author: Microsoft
+Free version: Yes
+Price: No + +The Microsoft Assessment and Planning Toolkit makes it easy to assess your current IT infrastructure for a variety of technology migration projects. +This Solution Accelerator provides a powerful inventory, assessment, and reporting tool to simplify the migration planning process. + + +## mssql-scripter + +Download page: [mssql-scripter]
+Release date: ?
+Support Version: ?
+Author: Microsoft
+Free version: Open Source
+Price: No + +mssql-scripter is the multiplatform command line equivalent of the widely used Generate Scripts Wizard experience in SSMS. +You can use mssql-scripter on Linux, macOS, and Windows to generate data definition language (DDL) and data manipulation language (DML) T-SQL scripts for database objects in SQL Server running anywhere, Azure SQL Database, and Azure SQL Data Warehouse. + + +## DBFS + +Download page: [DBFS]
+Release date: ?
+Support Version: ?
+Author: Microsoft
+Free version: Open Source
+Price: No + +DBFS uses FUSE to mount MS SQL Server DMVs as a virtual file system. +This gives you the ability to explore information about your database (Dynamic Management Views) using native bash commands. + + +## Comparator + +Download page: [Comparator]
+Release date: 2017-06-06
+Support Version: 2008-2017
+Author: Pumpet
+Free version: Open Source
+Price: No + +Simple application for compare data + + + +## Navicat for SQL Server +Download page: [Navicat for SQL Server]
+Release date: 2017-06-14
+Support Version: 2008-2017/Azure/AmazonRDS
+Author: PremiumSoft
+Free version: No
+Price: $699 + +Navicat for SQL Server gives you a fully graphical approach to database management and development. +Quickly and easily create, edit, and delete all database objects, or execute SQL queries and scripts. +Connect to any local/remote SQL Server, and compatible with cloud databases like Amazon RDS and SQL Azure. + + + +## Navicat Premium +Download page: [Navicat Premium]
+Release date: 2017-06-14
+Support Version: 2008-2017/Azure/AmazonRDS
+Author: PremiumSoft
+Free version: No
+Price: $1299 + +Navicat Premium is a database development tool that allows you to simultaneously connect to MySQL, MariaDB, SQL Server, Oracle, PostgreSQL, and SQLite databases from a single application. +Compatible with cloud databases like Amazon RDS, Amazon Aurora, Amazon Redshift, SQL Azure, Oracle Cloud and Google Cloud. +You can quickly and easily build, manage and maintain your databases. + + + +## DbVisualizer +Download page: [DbVisualizer]
+Release date: 2017-08-22
+Support Version: 2008-2017
+Author: DbVis Software AB.
+Free version: Yes
+Price: $197 + +DbVisualizer is the universal database tool for developers, DBAs and analysts. +It is the perfect solution since the same tool can be used on all major operating systems accessing a wide range of databases. + + + +## DbSchema +Download page: [DbSchema]
+Release date: 2017-06-19
+Support Version: 2008-2017/Azure/Amazon
+Author: Wise Coders Solutions
+Free version: No
+Price: $127 + + - DbSchema is a diagram-oriented database designer with integrated data and query tools + - DbSchema is build for large diagrams and schemes. No database experience required - the tool is visual. + - For deployment of the schema on multiple databases, management of multiple versions of the schema and migration scripts, work in a team on the design project. +This are possible as DbSchema is using its own image of the schema and saves it to XML file. + + + +## DBGhost +Download page: [DBGhost]
+Release date: 2017-01-31
+Support Version: 2008/2012/2014/2016
+Author: Innovartis Ltd
+Free version: No
+Price: £430 + +The Change Manager gives you all the tools to implement the full DB Ghost Process enabling you to script out your databases into individual DROP/CREATE scripts, place those scripts under source control, modify them there and then build and deploy from those scripts. + + + +## SQLAutomate +Download page: [SQLAutomate]
+Release date: 2017-06-19
+Support Version: 2008/2012/2014/2016
+Author: OnLine ToolWorks
+Free version: No
+Price: $99 + +SQLAutomate is an advanced database automation solution for SQL Server, Oracle, MySQL, DB2 or other advanced database management system. +It provides the ability to manage the necessary repetitive DBMS maintenance to help keep your databases efficient over time. +SQLAutomate makes it easy to manage a single database server instance, hundreds or even thousands of instances. + + +## BimlExpress + +Download page: [BimlExpress]
+Release date: ?
+Support Version: ?
+Author: Varigence
+Free version: No
+Price: No + +BimlExpress Visual Studio Add-in built specifically to work with SQL Server 2016. +- Generate packages within Visual Studio and avoid slow, repetitive, "drag 'n drop" workflow. +- Write Biml code with syntax highlighting, making it easier to read and write Biml. +- Updates are released more rapidly to work with the most current versions of SQL Server. + + +## BIDS Helper + +Download page: [BIDS Helper]
+Release date: 2015-03-17
+Support Version: ?
+Author: Microsoft
+Free version: Open Source
+Price: No + +A Visual Studio add-in that enhances development functionality in Business Intelligence Development Studio (BIDS) and SQL Server Data Tools (SSDTBI). + + +## Azure Data Warehouse Migration Utility + +Download page: [Azure Data Warehouse Migration Utility]
+Release date: ?
+Support Version: ?
+Author: Microsoft
+Free version: ?
+Price: ? + +The Data Warehouse Migration Utility is a tool designed to migrate schema and data from SQL Server and Azure SQL Database to Azure SQL Data Warehouse. +During schema migration, the tool automatically maps the corresponding schema from source to destination. +After the schema has been migrated, the tools provides the option to move data with automatically generated scripts. + + + +## Dell Benchmark Factory +Download page: [Dell Benchmark Factory]
+Release date: ?
+Support Version: 2008/2012/2014/2016/Azure
+Author: Quest Software
+Free version: No
+Price: $4413 + +- database workload generation +- database code scalability testing +- industry-standard benchmark testing +- virtual user and transaction load simulation + + + +## manduka +Download page: [manduka]
+Release date: 2017-03-08
+Support Version: ?
+Author: Virtusa Corporation
+Free version: Yes
+Price: No + +The Free Static code analyzer + - PL-SQL & T-SQL + - Support for more than 50 violation rules + - Light weight & fast + - Easy to install & use + - XML reports + + + +## PowerBI +Download page: [PowerBI Desktop]
+Release date: 2017-07-11
+Support Version: 2008-2017
+Author: Microsoft
+Free version: Yes
+Price: ? + +Power BI is a suite of business analytics tools to analyze data and share insights. +Monitor your business and get answers quickly with rich dashboards available on every device. + + + +## Stellar Phoenix SQL Database Repair +Download page: [Stellar Phoenix SQL Database Repair]
+Release date: 2017-07-05
+Support Version: 2008/2012/2014/2016
+Author: Stellar Information Technology
+Free version: No
+Price: $349 + + - Repairs corrupt MDF and NDF file of SQL Server database + - Recovers tables, triggers, indexes, keys, rules and defaults + - Perform deleted records recovery from MS SQL Server database + - Saves Scan result of SQL Server database file automatically + - Allows to search and recover specific database objects + - Allows saving the repaired file in MS SQL, HTML, XLS & CSV formats + - Supports MS SQL Server 2016, 2014, 2012, 2008 and all lower versions + + +## DataNumen SQL Recovery +Download page: [DataNumen SQL Recovery]
+Release date: 2017-03-20
+Support Version: 2008/2012/2014/2016
+Author: DataNumen
+Free version: No
+Price: $500 + +Recovery rate is the most important criterion of a SQL recovery product. +Based on our comprehensive tests, DataNumen SQL Recovery has the best recovery rate, much more better than any other competitors in the market! + + + +## Recovery Toolbox for SQL Server +Download page: [Recovery Toolbox for SQL Server]
+Release date: ?
+Support Version: 7/2000/2005/2008/2008 R2/2012/2014
+Author: Recovery Toolbox
+Free version: No
+Price: $99 + +Recovery Toolbox for SQL Server is a comprehensive recovery solution for damaged MS SQL Server database files. + + + +## SQL MDF Viewer +Download page: [SQL MDF Viewer]
+Release date: ?
+Support Version: 2000-2016
+Author: SysTools
+Free version: No
+Price: $129 + +Read and open MDF database file along with its related elements + - Preview all tables, indexes, triggers of the MDF file + - Auto detects the SQL Server version + - Save scanned MDF file data in .str file format + + + +## SQL MDF Recovery Tool +Download page: [SQL MDF Recovery Tool]
+Release date: ?
+Support Version: 2014 and all lower versions
+Author: SysTools
+Free version: No
+Price: $129 + +Repair corrupt MDF file data with ease and accuracy + - Recover tables, function, stored procedure, triggers, etc + - Performs Quick and Advance Scan to repair MDF & NDF file + - Export selective file with Schema or Schema and Data + + + +## SQL Passord Recovery +Download page: [SQL Passord Recovery]
+Release date: ?
+Support Version: 2008 & all below versions
+Author: SysTools
+Free version: No
+Price: $69 + +Tool to Reset SQL Server Database Password + - Recover passwords of multiple SQL Server databases + - Reset both unknown and empty SQL DB passwords + - Remove and reset passwords of all SQL Server users + + + +## SQL Decryptor +Download page: [SQL Decryptor]
+Release date: ?
+Support Version: 2014 & all below versions
+Author: SysTools
+Free version: No
+Price: $69 + +User Friendly Solution to Remove Encryption From SQL Database + - Remove encryption from batch SQL objects + - Display complete preview of MS SQL database + - Export data to SQL Server and compatible script + + + +## SQL Backup Database Recovery +Download page: [SQL Backup Database Recovery]
+Release date: ?
+Support Version: ?
+Author: SysTools
+Free version: No
+Price: $149 + +Recover Corrupt SQL Backup File with .bak Repair Tool + - Repair corrupt SQL Server backup file with confidence + - Fix all SQL backup error messages quickly + - Advanced and affordable solution to recover SQL BAK file + - Simple and nifty graphical user interface + + + +## SQL Log File Viewer +Download page: [SQL Log File Viewer]
+Release date: ?
+Support Version: 2016/2014/2012/2008 and all below versions
+Author: SysTools
+Free version: No
+Price: $999 + +Read SQL Server database transaction log file with SQL log analysis tool + - Analyze and view SQL Server LDF file transactions + - View all the transactions, i.e. insert, update, delete etc. + - Export log file into SQL Server, SQL script or as CSV file + + + +## DAX Studio +Download page: [DAX Studio]
+Release date: ?
+Support Version: ?
+Author: Sqlbi
+Free version: Yes
+Price: No + +DAX Studio is a tool to write, execute, and analyze DAX queries in Power BI Designer, Power Pivot for Excel, and Analysis Services Tabular. + + + +## SQL Cop +Download page: [SQL Cop]
+Release date: ?
+Support Version: ?
+Author: LessThanDot
+Free version: Yes
+Price: No + +SQL Cop is a static code analysis tool to automatically detect issues with your database. + + + +## Dataedo +Download page: [Dataedo]
+Release date: 2017-09-15
+Support Version: 2008-2017
+Author: Sqlbi
+Free version: Yes
+Price: $239 + +Document SQL Server, Oracle and MySQL databases + + + +## Azure Database Migration Service +Download page: [Dataedo]
+Release date: 2017-12-01
+Support Version: 2008-2017
+Author: Microsoft
+Free version: Yes
+Price: No + +Reduce the complexity of your cloud migration by using a single comprehensive service instead of multiple tools. +The public preview release of Azure Database Migration Service is designed as a seamless, end-to-end solution for moving on-premises SQL Server databases to the cloud. + + + +## FlowHeater +Download page: [flowheater]
+Release date: 2017-10-02
+Support Version: 2008-2017
+Author: FlowHeater GmbH
+Free version: No
+Price: $79 + +The FlowHeater functionality closely resembles the concept of a continuous-flow water heater. A wide variety of data sources can be interconnected with FlowHeater and by making use of exchangeable adapters, there is no restriction to the data flow. + + + +## EDIS +Download page: [EDIS]
+Release date: ?
+Support Version: 2008-2017
+Author: SQL ETL
+Free version: Yes
+Price: $599 + +EDIS is an Extract-Transform-Load (ETL) application for Microsoft SQL Server. +No 3rd Party Language, No Packages, Just SQL. + + + +## SchemaSpy +Download page: [SchemaSpy]
+Release date: 2018-08-05
+Support Version: 2008-2017
+Author: Rafal Kasa
+Free version: Open Source
+Price: No + +Document your database simply and easily. +SchemaSpy is a Java-based tool (requires Java 8 or higher) that analyzes the metadata of a schema in a database and generates a visual representation of it in a browser-displayable format. +It lets you click through the hierarchy of database tables via child and parent table relationships as represented by both HTML links and entity-relationship diagrams. +It’s also designed to help resolve the obtuse errors that a database sometimes gives related to failures due to constraints. +It is free software that is distributed under the terms of the MIT License. + + + +## Adminer +Download page: [Adminer]
+Release date: 2018-02-20
+Support Version: 2005-2017
+Author: Adminer
+Free version: Open Source
+Price: No + +Adminer (formerly phpMinAdmin) is a full-featured database management tool written in PHP. Conversely to phpMyAdmin, it consist of a single file ready to deploy to the target server. +Adminer is available for MySQL, MariaDB, PostgreSQL, SQLite, MS SQL, Oracle, Firebird, SimpleDB, Elasticsearch and MongoDB. + + + +## Full Convert Enterprise +Download page: [Full Convert]
+Release date: 2018-08-20
+Support Version: 2005-2017
+Author: Spectral Core
+Free version: No
+Price: $699 + +Full Convert allows easy copying of tables and data between 40 or so supported databases. It will create all the tables, copy all of your data, then create indexes and foreign keys. +It has powerful mapping and customization features and uses optimal copying mode for each table separately to achieve the best possible throughput. + + + +## Replicator Pro +Download page: [Replicator]
+Release date: 2018-08-20
+Support Version: 2005-2017
+Author: Spectral Core
+Free version: No
+Price: $799 + +Replicator allows table data comparison and sync - even with heterogeneous databases. It is unique in the fact it can replicate changes only even if source is non-relational (CSV, DBF, Excel documents, Paradox...). +Replicator has a built-in scheduler for easy periodic change replication. + + + +## JackDB +Download page: [JackDB]
+Release date: ?
+Support Version: 2008-2017/Azure
+Author: JackDB
+Free version: No
+Price: $49 + +JackDB is a modern database client. Collaborate with data securely across your entire organization. + + + +## SQL Workbench +Download page: [SQL Workbench]
+Release date: 2018-08-20
+Support Version: 2008-2017
+Author: Thomas Kellerer
+Free version: Yes
+Price: No + +SQL Workbench/J is a free, DBMS-independent, cross-platform SQL query tool. It is written in Java and should run on any operating system that provides a Java Runtime Environment. +Its main focus is on running SQL scripts (either interactively or as a batch) and export/import features. +**Graphical query building or more advanced DBA tasks are not the focus and are not planned.** + + + +## Valentina Studio +Download page: [Valentina Studio]
+Release date: 2018-09-24
+Support Version: 2008-2017
+Author: Paradigma Software
+Free version: Yes
+Price: $200 + +Valentina Studio is your universal database management tool for working with MySQL, MariaDB, SQL Server, PostgreSQL, SQLite and Valentina DB databases. +Valentina Studio lets you connect with all major databases, run queries and generate diagrams to better understand your mission critical business data - and that is the free version of Valentina Studio. + + + +## SQL Plus Dot Net +Download page: [SQL Plus Dot Net]
+Release date: ?
+Support Version: ?
+Author: SQL+.NET
+Free version: No
+Price: ? + +SQL+ is a tool that generates a class library from stored procedures by utilizing a tagging system in the form of comments. +Does all the ADO stuff like setting up parameters and converting result sets into objects. + + +[SSMS]:https://docs.microsoft.com/en-us/sql/ssms/download-sql-server-management-studio-ssms +[bcp Utility]:https://docs.microsoft.com/en-us/sql/tools/bcp-utility +[sqlcmd Utility]:https://docs.microsoft.com/en-us/sql/tools/sqlcmd-utility +[mssql-cli]:https://github.com/dbcli/mssql-cli +[Azure Data Studio]:https://github.com/Microsoft/azuredatastudio +[RML Utilities for SQL Server]:https://www.microsoft.com/en-us/download/details.aspx?id=4511 +[GraphView]:https://github.com/Microsoft/GraphView +[Baseline Security Analyze]:https://www.microsoft.com/en-us/download/details.aspx?id=7558 +[Microsoft Log Parser]:https://www.microsoft.com/en-us/download/details.aspx?id=24659 +[Log Parser Lizard GUI]:http://lizard-labs.com/log_parser_lizard.aspx +[tablediff Utility]:https://msdn.microsoft.com/en-us/library/ms162843.aspx +[Diskspd]:https://github.com/microsoft/diskspd +[HammerDB]:http://www.hammerdb.com/ +[Exchange Server Error Code Look-up]:https://www.microsoft.com/en-us/download/details.aspx?id=985 +[LINQPad]:https://www.linqpad.net/ +[SqlDynamite]:http://www.host-tracker.com/SqlDynamite +[SQL Server Data Tools]:https://docs.microsoft.com/en-us/sql/ssdt/download-sql-server-data-tools-ssdt +[Database Health Monitor]:http://databasehealth.com/download/ +[SchemaDrift]:http://databasehealth.com/schemadrift/ +[Dbeaver]:http://dbeaver.jkiss.org/ +[HeidiSQL]:http://www.heidisql.com +[SQLExecStats]:http://www.qdpma.com/ExecStats/SQLExecStats.html +[ExpressProfiler]:https://expressprofiler.codeplex.com/ +[Migration Assistant for Sybase]:https://msdn.microsoft.com/en-us/library/hh302795(v=sql.130).aspx +[Data Migration Assistant]:https://blogs.msdn.microsoft.com/datamigration/dma/ +[dta Utility]:https://msdn.microsoft.com/en-us/library/ms162812.aspx +[osql Utility]:https://msdn.microsoft.com/en-us/library/ms162806.aspx +[sqldiag Utility]:https://msdn.microsoft.com/en-us/library/ms162833.aspx +[sqldumper Utility]:https://support.microsoft.com/en-us/kb/917825 +[SqlLocalDB Utility]:https://msdn.microsoft.com/en-us/library/hh212961.aspx +[sqllogship Utility]:https://msdn.microsoft.com/en-us/library/bb283327.aspx +[sqlservr Application]:https://msdn.microsoft.com/en-us/library/ms162819.aspx +[sqlps Utility]: https://msdn.microsoft.com/en-us/library/cc280450.aspx +[sqlmaint Utility]: https://msdn.microsoft.com/en-us/library/ms162827.aspx +[Ssms Utility]: https://msdn.microsoft.com/en-us/library/ms162825.aspx +[dtexec Utility]: https://msdn.microsoft.com/en-us/library/hh231187.aspx +[SQL Server 2016 Report Builder]:https://www.microsoft.com/en-us/download/details.aspx?id=53613 +[DLM Dashboard]:http://www.red-gate.com/products/dlm/dlm-dashboard/ +[Red Gate SQL Compare]:http://www.red-gate.com/products/sql-development/sql-compare/ +[Red Gate SQL Data Compare]:http://www.red-gate.com/products/sql-development/sql-data-compare/ +[Red Gate SQL Prompt]:http://www.red-gate.com/products/sql-development/sql-prompt/ +[Red Gate SQL Monitor]:http://www.red-gate.com/products/dba/sql-monitor/ +[Red Gate SQL Backup Pro]:http://www.red-gate.com/products/dba/sql-backup/ +[Red Gate SQL Doc]:http://www.red-gate.com/products/sql-development/sql-doc/ +[Red Gate SQL Data Generator]:http://www.red-gate.com/products/sql-development/sql-data-generator/ +[Red Gate SQL Dependency Tracker]:http://www.red-gate.com/products/sql-development/sql-dependency-tracker/ +[Red Gate SQL Multi Script]:http://www.red-gate.com/products/dba/sql-multi-script/ +[Red Gate SQL Index Manager]:http://www.red-gate.com/products/dba/sql-index-manager/ +[Red Gate SQL Comparison SDK]:http://www.red-gate.com/products/sql-development/sql-comparison-sdk/ +[Red Gate SQL Clone]:http://www.red-gate.com/products/dba/sql-clone/ +[Red Gate SQL Provision]:https://www.red-gate.com/products/dba/sql-provision/ +[Red Gate SQL Data Masker]: https://www.red-gate.com/products/dba/data-masker +[DLM Automation]:http://www.red-gate.com/products/dlm/dlm-automation/ +[ReadyRoll]:http://www.red-gate.com/products/sql-development/readyroll/ +[Rapid Database Extractor]:https://www.idera.com/productssolutions/freetools/rapid-database-extractor +[SQL XEvent Profiler]:https://www.idera.com/productssolutions/freetools/sqlxeventprofiler +[SQL Check]: https://www.idera.com/productssolutions/freetools/sqlcheck +[SQL Fragmentation Analyzer]: https://www.idera.com/productssolutions/freetools/sqlfragmentationanalyzer/overview +[SQL Heat Map]: https://www.idera.com/productssolutions/freetools/sql-storage +[SQL Hekaton Memory Check]: https://www.idera.com/productssolutions/freetools/hekaton-memory-check-for-sql-memory-optimized-tables +[SQL Page Viewer]: https://www.idera.com/productssolutions/freetools/sql-server-page +[SQL Update Statistics]: https://www.idera.com/productssolutions/freetools/sql-server-statistics/overview +[SQL Statistics Aggregator]: https://www.idera.com/productssolutions/freetools/statistics-aggregator-for-performance-tuning-in-sql +[SQL Backup Status Reporter]: https://www.idera.com/productssolutions/freetools/sqlbackupstatusreporter/overview +[SQL Integrity Check]: https://www.idera.com/productssolutions/freetools/sqlintegritycheck/overview +[SQL Job Manager]: https://www.idera.com/productssolutions/freetools/sqljobmanager +[Azure SQL Database Backup]: https://www.idera.com/productssolutions/freetools/azuresqldatabasebackup +[SQL Column Search]: https://www.idera.com/productssolutions/freetools/sql-column-search +[SQL Permissions Extractor]: https://www.idera.com/productssolutions/freetools/sqlpermissionsextractor +[SQL BI Check]:https://www.idera.com/productssolutions/freetools/sql-bi-check +[SQL Inventory Check]:https://www.idera.com/productssolutions/freetools/sql-inventory-check +[SQL Diagnostic Manager]:https://www.idera.com/productssolutions/sqlserver/sqldiagnosticmanager +[SQL Safe Backup]:https://www.idera.com/productssolutions/sqlserver/sqlsafebackup +[SQL Compliance Manager]:https://www.idera.com/productssolutions/sqlserver/sqlcompliancemanager +[SQL Inventory Manager]:https://www.idera.com/productssolutions/sqlserver/sql-elements +[SQL Virtual Database]:https://www.idera.com/productssolutions/sqlserver/sqlvirtualdatabase +[SQL Secure]:https://www.idera.com/productssolutions/sqlserver/sqlsecure +[SQL Doctor]:https://www.idera.com/productssolutions/sqlserver/sqldoctor +[SQL Admin Toolset]:https://www.idera.com/productssolutions/sqlserver/sqladmintoolset +[SQL Defrag Manager]:https://www.idera.com/productssolutions/sqlserver/sqldefragmanager +[DBArtisan]:https://www.idera.com/dbartisan-database-administration-solution +[SQL BI Manager]:https://www.idera.com/productssolutions/sqlserver/sql-server-business-intelligence +[SQL Enterprise Job Manager]:https://www.idera.com/productssolutions/sqlserver/sql-server-agent-job +[DB Optimizer]:https://www.idera.com/dboptimizer-sql-database-optimization +[SQL Query Store Optimizer]:https://www.idera.com/productssolutions/freetools/sql-query-store-optimizer +[Rapid SQL]:https://www.idera.com/rapid-sql-ide/overview +[SQL Comparison Toolset]:https://www.idera.com/productssolutions/sqlserver/sqlcomparisontoolset +[ER/Studio Data Architect]:https://www.idera.com/er-studio-data-architect-software +[DB Change Manager]:https://www.idera.com/database-change-management +[dbForge Schema Compare]: https://www.devart.com/dbforge/sql/schemacompare/ +[dbForge Data Compare]: https://www.devart.com/dbforge/sql/datacompare/ +[dbForge Data Generator]: https://www.devart.com/dbforge/sql/data-generator/ +[dbForge Query Builder]: https://www.devart.com/dbforge/sql/querybuilder/ +[dbForge Event Profiler]: https://www.devart.com/dbforge/sql/event-profiler/ +[dbForge SQL Decryptor]: https://www.devart.com/dbforge/sql/sqldecryptor/ +[dbForge Studio]:https://www.devart.com/dbforge/sql/studio/ +[dbForge Fusion]:https://www.devart.com/dbforge/sql/fusion/ +[dbForge Documenter]:https://www.devart.com/dbforge/sql/documenter/ +[dbForge Developer Bundle]:https://www.devart.com/dbforge/sql/developer-bundle/ +[dbForge Compare Bundle for SQL Server]:https://www.devart.com/dbforge/sql/compare-bundle/ +[Devart Excel Add-in for SQL Server]:https://www.devart.com/excel-addins/sql-server.html +[dbMonitor]:https://www.devart.com/dbmonitor/download.html [BPA 2005]: https://www.microsoft.com/en-us/download/details.aspx?id=23864 [BPA 2000]: https://www.microsoft.com/en-us/download/details.aspx?id=15691 [BPA 2008]: https://www.microsoft.com/en-us/download/details.aspx?id=15289 @@ -1929,27 +4400,23 @@ SQLC is a software tool for comparing two SQL Server databases. With SQLC you ca [Minion Enterprise]:http://minionware.net/enterprise/ [SQL Server Compression Estimator]:http://ssce.codeplex.com [ClearTrace]:http://www.scalesql.com/cleartrace/download.html -[SQLSentry Fragmentation Manager]:http://www.sqlsentry.com/products/fragmentation-manager/sql-server-index-analysis-and-defrag -[SQLSentry Plan Explorer]:http://www.sqlsentry.com/products/plan-explorer/sql-server-query-view -[SQLSentry Event Manager]:http://www.sqlsentry.com/products/event-manager/sql-server-job-schedule-alert-management -[SQLSentry Performance Advisor]:http://www.sqlsentry.com/products/performance-advisor/sql-server-performance [Dell Security Explorer]:http://software.dell.com/products/security-explorer/ [Dell LiteSpeed for SQL Server]:http://software.dell.com/products/litespeed-for-sql-server/ [Dell Toad for SQL Server]:http://software.dell.com/products/toad-for-sql-server/ [Dell Spotlight]:http://software.dell.com/products/spotlight-on-sql-server-enterprise/ [Dell Foglight]:http://software.dell.com/products/foglight-for-cross-platform-databases/ -[SQLSolutions SQL Deadlock Detector]:http://sqlsolutions.com/products/sql-deadlock-detector/index.html -[SQLSolutions SQL Heartbeat]:http://www.sqlsolutions.com/products/sql-server-monitor/sql-monitor.html -[SQLSolutions SQL Trace Analyzer]:http://sqlsolutions.com/products/sql-trace-analyzer/index.html -[SQLSolutions SQL Ultimate Debugger]:http://sqlsolutions.com/products/sql-ultimate-debugger/index.html -[SQLScripter]:http://www.sqlscripter.com/ +[Dell Discovery Wizard]:http://software.dell.com/products/discovery-wizard-for-sql-server/ +[Dell Enterprise Reporter]:http://software.dell.com/products/enterprise-reporter-for-sql-server/ +[SQL Scripter]:http://www.sqlscripter.com/ [Simple Dynamic Scheduler]:http://www.codeproject.com/Articles/1096104/Simple-Dynamic-Scheduler [ApexSQL Audit]:http://www.apexsql.com/sql_tools_audit.aspx [ApexSQL Backup]:https://www.apexsql.com/sql_tools_backup.aspx +[ApexSQL Defrag]:https://www.apexsql.com/sql_tools_defrag.aspx [ApexSQL Log]:https://www.apexsql.com/sql_tools_log.aspx [ApexSQL Monitor]:https://www.apexsql.com/sql_tools_monitor.aspx +[ApexSQL Plan]:https://www.apexsql.com/sql_tools_plan.aspx +[ApexSQL Propagate]:https://www.apexsql.com/sql_tools_propagate.aspx [ApexSQL Recover]:https://www.apexsql.com/sql_tools_recover.aspx -[ApexSQL Restore]:https://www.apexsql.com/sql_tools_restore.aspx [ApexSQL Build]:https://www.apexsql.com/sql_tools_build.aspx [ApexSQL Clean]:https://www.apexsql.com/sql_tools_clean.aspx [ApexSQL Data Diff]:https://www.apexsql.com/sql_tools_datadiff.aspx @@ -1958,15 +4425,152 @@ SQLC is a software tool for comparing two SQL Server databases. With SQLC you ca [ApexSQL Generate]:https://www.apexsql.com/sql_tools_generate.aspx [ApexSQL Script]:https://www.apexsql.com/sql_tools_script.aspx [ApexSQL Trigger]:https://www.apexsql.com/sql_tools_trigger.aspx +[ApexSQL Trigger Viewer]:https://www.apexsql.com/Download.aspx?download=Search +[ApexSQL Snapshot Utility]:https://www.apexsql.com/Download.aspx?download=Search +[ApexSQL Decrypt]:https://www.apexsql.com/sql_tools_decrypt.aspx +[ApexSQL Model]:https://www.apexsql.com/sql_tools_model.aspx +[ApexSQL Analyze]:https://www.apexsql.com/sql_tools_analyze.aspx +[ApexSQL BI Monitor]:https://www.apexsql.com/sql_tools_bi_monitor.aspx +[ApexSQL VM Monitor]:https://www.apexsql.com/sql_tools_vm_monitor.aspx +[ApexSQL Job]:https://www.apexsql.com/sql_tools_job.aspx +[ApexSQL Enforce]:https://www.apexsql.com/sql_tools_enforce.aspx [DBBest T-SQL Analyzer]:https://www.dbbest.com/products/t-sql-analyzer [DBBest Database Compare Suite]:https://www.dbbest.com/products/database-compare-suite/ [Advanced Query Tool]:http://www.querytool.com/ -[SqlDiffFramework]:https://sqldiffframework.codeplex.com/Wikipage?ProjectName=sqldiffframework +[SqlDiffFramework]:https://github.com/msorens/SqlDiffFramework/ [DataGrip]:https://www.jetbrains.com/datagrip/ -[Pssdiag and Sqldiag Manager]:http://diagmanager.codeplex.com/ +[Pssdiag and Sqldiag Manager]:https://github.com/Microsoft/DiagManager [SQL Nexus Tool]:http://sqlnexus.codeplex.com/ [DBSophic Qure Profiler]:http://www.dbsophic.com/products/qure-profiler [DBSophic Qure Optimizer]:http://www.dbsophic.com/products/qure-optimizer [RestoreChecker]:http://sqlserverutilities.com/products/restorechecker/ [SQLScripter]:http://sqlserverutilities.com/products/sqlscripter/ [SQLC]:http://sqlc.azurewebsites.net/ +[Database Performance Analyzer]:http://www.solarwinds.com/database-performance-analyzer +[Database Performance Analyzer for MSSQL]:http://www.solarwinds.com/database-performance-analyzer-sql-server +[SQL Enlight]:http://www.ubitsoft.com/products/sqlenlight/index.php +[Aireforge Studio]:https://aireforge.com/studio/ +[HexaTier]:http://www.hexatier.com/ +[SoftTree SQL Assistant]:https://www.softtreetech.com/sqlassist/ +[DB Audit and Security 360]:http://softtreetech.com/dbaudit/index.htm +[EMS SQL Management Studio]:http://www.sqlmanager.net/en/products/studio/mssql +[EMS SQL Backup]:http://www.sqlmanager.net/en/products/mssql/sqlbackup +[EMS SQL Administrator]:http://www.sqlmanager.net/en/products/mssql/sqladmin +[EMS SQL Manager]:http://www.sqlmanager.net/en/products/mssql/manager +[EMS Data Export]:http://www.sqlmanager.net/en/products/mssql/dataexport +[EMS Data Import]:http://www.sqlmanager.net/en/products/mssql/dataimport +[EMS Data Pump]:http://www.sqlmanager.net/en/products/mssql/datapump +[EMS Data Generator]:http://www.sqlmanager.net/en/products/mssql/datagenerator +[EMS DB Comparer]:http://www.sqlmanager.net/en/products/mssql/dbcomparer +[EMS DB Extract]:http://www.sqlmanager.net/en/products/mssql/extract +[EMS SQL Query]:http://www.sqlmanager.net/en/products/mssql/query +[EMS Data Comparer]:http://www.sqlmanager.net/en/products/mssql/datacomparer +[NitroAccelerator]:http://nitrosphere.com/nitroaccelerator/ +[ERwin Data Modeler]:http://erwin.com/products/data-modeler +[Toad Data Modeler]:https://software.dell.com/products/toad-data-modeler/ +[SQL Power Architect]:http://www.sqlpower.ca/page/architect +[DbWrench]:http://www.dbwrench.com/ +[Navicat Data Modeler]:https://www.navicat.com/products/navicat-data-modeler +[DeZign for Databases]:http://www.datanamic.com/dezign/index.html +[ERDesigner NG]:http://mogwai.sourceforge.net/erdesignerng.html +[Vertabelo]:http://www.vertabelo.com/ +[dbDiffo]:https://dbdiffo.com/ +[SQL DXP]:http://www.sqldelta.com/index?page=dxp +[Aqua Data Studio]:http://www.aquafold.com/aquadatastudio.html +[RazorSQL]:https://www.razorsql.com/ +[SQL Pretty Printer]:http://www.dpriver.com/products/sqlpp/desktop_index.php +[Database .NET]:http://fishcodelib.com/Database.htm +[dbMigration .NET]:http://fishcodelib.com/dbMigration.htm +[Is It SQL]:http://www.scalesql.com/isitsql +[Database Experimentation Assistant]:https://blogs.msdn.microsoft.com/datamigration/2017/03/24/dea-2-0-release-overview-database-experimentation-assistant +[Data Platform Studio]:http://www.red-gate.com/products/azure-development/data-platform-studio +[Flyway]:https://flywaydb.org +[Liquibase]:http://www.liquibase.org +[My Batis]:http://www.mybatis.org/migrations +[SentryOne Plan Explorer]:https://www.sentryone.com/plan-explorer +[SQL Sentry]:https://sentryone.com/platform/sql-server-performance-monitoring +[DBmaestro TeamWork]:http://www.dbmaestro.com/product/devops-for-database +[xSQL Schema Compare]:http://www.xsql.com/products/sql_server_schema_compare +[xSQL Data Compare]:https://www.xsql.com/products/sql_server_data_compare +[xSQL Script Executor]:https://www.xsql.com/products/script_executor +[xSQL Builder]:https://www.xsql.com/products/sql_database_deployment_builder +[xSQL Documenter]:https://www.xsql.com/products/database_documenter +[xSQL Profiler]:https://www.xsql.com/products/sql_server_profiler +[xSQL Schema Compare SDK]:https://www.xsql.com/products/sdk/sql_server_schema_compare +[xSQL RSS Reporter]:https://www.xsql.com/products/rss_reporter +[xSQL Database Searcher]:https://www.xsql.com/products/sql_server_database_searcher +[Cloud-based DB Monitoring Platform]:https://www.sqltreeo.com +[SchemaCrawler]:http://sualeh.github.io/SchemaCrawler/index.html +[SA MaaS Microsoft SQL Server]:http://sentinelagent.com/maas/microsoft-sql-server +[CatCompare v2]:https://dilmsuite.com/downloads/cat-compare-v2 +[SSIS Catalog Compare v2.0 Bundle]:https://dilmsuite.com/downloads/ssis-catalog-compare-v2-bundle +[MS Kerberos Configuration Manager]:https://www.microsoft.com/en-us/download/details.aspx?id=39046 +[Spotlight]:https://www.spotlightessentials.com/home/Console +[DBConvert Studio]:https://dbconvert.com/dbconvert-studio +[DbDefence]:https://www.database-encryption.com +[Uptime Infrastructure Monitor]:https://www.idera.com/it-infrastructure-management-and-monitoring +[SQL Server Migration Assistant for MySQL]:https://msdn.microsoft.com/en-us/library/hh313109%28v=sql.110%29.aspx?f=255&MSPPError=-2147217396 +[sqlcmd for Mac and Linux]:https://github.com/soheilpro/sqlcmd +[SQL Migrator]:http://www.datamatetechnology.com/sqlmigrator.html +[MS FoxPro to MS SQL Migration and Sync]:https://convertdb.com/foxpro/mssql +[MySQL to MS SQL Migration and Sync]:https://convertdb.com/mysql/mssql +[Oracle to MS SQL Migration and Sync]:https://convertdb.com/oracle/mssql +[PostgreSQL to MS SQL Migration and Sync]:https://convertdb.com/postgresql/mssql +[MS Excel to MS SQL Migration]:https://convertdb.com/excel/mssql +[SQLite to MS SQL Migration and Sync]:https://convertdb.com/sqlite/mssql +[IBM DB2 to MS SQL Migration and Sync]:https://convertdb.com/db2/mssql +[MS Access to MS SQL Migration and Sync]:https://convertdb.com/access/mssql +[Firebird to MS SQL Migration and Sync]:https://convertdb.com/firebird/mssql +[SQLines SQL Converter]:https://github.com/dmtolpeko/sqlines +[SQLite & SQL Server Compact Toolbox]:https://github.com/ErikEJ/SqlCeToolbox +[SqlPad]:https://github.com/rickbergfalk/sqlpad +[Html-query-plan]:https://github.com/JustinPealing/html-query-plan +[SqlQueryStress]:https://github.com/ErikEJ/SqlQueryStress +[SQL Server Migration Assistant for DB2]:https://www.microsoft.com/en-us/download/details.aspx?id=54254 +[SQL Server Migration Assistant for Oracle]:https://www.microsoft.com/en-us/download/details.aspx?id=54258 +[SQL Server Migration Assistant for Access]:https://www.microsoft.com/en-us/download/details.aspx?id=54255 +[mssql for Visual Studio Code]:https://github.com/Microsoft/vscode-mssql +[Microsoft Assessment and Planning]:https://www.sqlshack.com/how-to-use-microsoft-assessment-and-planning-map-toolkit-for-sql-server +[mssql-scripter]:https://github.com/Microsoft/sql-xplat-cli +[DBFS]:https://github.com/Microsoft/dbfs +[comparator]:https://github.com/Pumpet/comparator +[Navicat for SQL Server]:https://www.navicat.com/en/products/navicat-for-sqlserver +[Navicat Premium]:https://www.navicat.com/en/products/navicat-premium +[DbVisualizer]:http://www.dbvis.com/ +[DbSchema]:http://www.dbschema.com +[DBGhost]:http://www.dbghost.com +[SQLAutomate]:http://www.sqlautomate.com +[BimlExpress]:https://www.varigence.com/BimlExpress +[BIDS Helper]:https://bidshelper.codeplex.com +[Azure Data Warehouse Migration Utility]:https://docs.microsoft.com/en-us/azure/sql-data-warehouse/sql-data-warehouse-migrate-migration-utility +[Dell Benchmark Factory]:https://www.quest.com/products/benchmark-factory +[manduka]:http://www.manduka.tech/#/home +[PowerBI Desktop]:https://powerbi.microsoft.com/en-us/desktop/ +[Stellar Phoenix SQL Database Repair]:https://www.stellarinfo.com/sql-recovery.php +[DataNumen SQL Recovery]:https://www.datanumen.com/sql-recovery/ +[Recovery Toolbox for SQL Server]:https://sql.recoverytoolbox.com +[SQL MDF Viewer]:http://www.sqlmdfviewer.org +[SQL MDF Recovery Tool]:http://www.sqlmdfviewer.org/recovery +[SQL Passord Recovery]:http://www.sqlmdfviewer.org/sql-password-recovery-freeware.html +[SQL Decryptor]:http://www.sqlmdfviewer.org/sql-decryptor.html +[SQL Backup Database Recovery]:http://www.sql-backup-recovery.sqlmdfviewer.org +[SQL Log File Viewer]:http://www.sqlmdfviewer.org/viewer/sql-server-log-file.html +[DAX Studio]:https://www.sqlbi.com/tools/dax-studio +[SQL Cop]:https://www.sqlshack.com/review-sql-cop-unit-tests-collection +[Dataedo]:https://dataedo.com/ +[Azure Database Migration Service]:https://azure.microsoft.com/en-us/services/database-migration/ +[FlowHeater]:https://flowheater.net/en +[EDIS]:https://sqletl.com +[SchemaSpy]:https://github.com/schemaspy/schemaspy +[Adminer]:https://www.adminer.org/ +[Full Convert]:https://www.spectralcore.com/fullconvert +[Replicator]:https://www.spectralcore.com/replicator +[JackDB]:https://www.jackdb.com/ +[SQL Workbench]:http://www.sql-workbench.eu/ +[Valentina Studio]:https://www.valentina-db.com +[SQL Plus Dot Net]:https://sqlplusweb.azurewebsites.net + +[LGPL-3.0]:http://www.gnu.org/licenses/lgpl-3.0.txt +[MIT]:https://opensource.org/licenses/MIT +[Apache]:http://www.apache.org/licenses/ +[BSD-3]:https://opensource.org/licenses/BSD-3-Clause diff --git a/Utilities/SSMS_Alternatives.md b/Utilities/SSMS_Alternatives.md new file mode 100644 index 00000000..6e5e99c8 --- /dev/null +++ b/Utilities/SSMS_Alternatives.md @@ -0,0 +1,57 @@ +# Microsoft SQL Server Management Studio Alternatives +Best free and paid SSMS alternatives - complete list of **23** SQL Server Utilities + + +| Name | Cross Database | Platform | Official/Download page | Release | Author | License | Free version | Price | +|------------------------------|-------------------------------|-----------|--------------------------------|------------|-----------------------|------------|----------------|------:| +| SSMS | No | No | [SSMS] | 2018-05-09 | Microsoft | | Yes | No | +| SQL OPS Studio | No | Linux,Mac | [SQL OPS Studio] | 2017-11-15 | Microsoft | | Yes | No | +| Log Parser Lizard GUI | Oracle,MySQL,PostgreSQL,Other | No | [Log Parser Lizard GUI] | 2017-06-01 | Lizard Labs | | Yes | $59 | +| SQL Server Data Tools | No | No | [SQL Server Data Tools] | 2018-04-10 | Microsoft | | Yes | No | +| Dbeaver | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [Dbeaver] | 2018-05-13 | Open Source | | Yes | No | +| HeidiSQL | Oracle,MySQL,PostgreSQL,Other | No | [HeidiSQL] | 2017-12-19 | Open Source | | Yes | No | +| Red Gate SQL Prompt | No | No | [Red Gate SQL Prompt] | 2016-04-28 | Red Gate | | No | $369 | +| Rapid SQL | Oracle,MySQL,PostgreSQL,Other | No | [Rapid SQL] | ? | Idera | | No | $710 | +| dbForge Studio | No | No | [dbForge Studio] | 2017-03-12 | Devart | Shareware | Yes | $250 | +| Dell Toad for SQL Serve | No | No | [Dell Toad for SQL Server] | 2015-05-12 | Dell | | No | ? | +| DataGrip | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [DataGrip] | 2017-02-21 | Jet Brains | | No | $89 | +| SQL Enlight | No | No | [SQL Enlight] | 2016-04-25 | UbitSoft | | No | $295 | +| SoftTree SQL Assistant | Oracle,MySQL,PostgreSQL,Other | No | [SoftTree SQL Assistant] | 2017-12-17 | SoftTree | | No | $215 | +| EMS SQL Management Studio | No | No | [EMS SQL Management Studio] | 2016-05-26 | EMS | | No | $257 | +| Aqua Data Studio | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [Aqua Data Studio] | 2016-07-06 | AquaFold | | No | $499 | +| RazorSQL | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [RazorSQL] | 2016-09-29 | Richardson Software | | No | $100 | +| Database .NET | Oracle,MySQL,PostgreSQL,Other | No | [Database .NET] | 2017-01-13 | fish's dotNET | | Non-commercial | $69 | +| SqlPad | Postgres,MySQL,Crate,Vertica | No | [SqlPad] | ? | Rickbergfalk | | Open Source | No | +| mssql for Visual Studio Code | No | Linux,Mac | [mssql for Visual Studio Code] | 2017-05-02 | Microsoft | | Open Source | No | +| Navicat for SQL Server | No | Mac | [Navicat for SQL Server] | 2017-06-14 | PremiumSoft | | No | $699 | +| Navicat Premium | Oracle,MySQL,PostgreSQL,Other | Mac | [Navicat Premium] | 2017-06-14 | PremiumSoft | | No | $1299 | +| DbVisualizer | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [DbVisualizer] | 2017-11-16 | DbVis Software AB. | | Yes | $197 | +| Adminer | Oracle,MySQL,PostgreSQL,Other | Linux,Mac | [Adminer] | 2018-02-20 | Jakub Vrána | [Apache] | Open Source | No | + +[SSMS]:https://docs.microsoft.com/en-us/sql/ssms/download-sql-server-management-studio-ssms +[SQL OPS Studio]:https://github.com/Microsoft/sqlopsstudio +[Log Parser Lizard GUI]:http://lizard-labs.com/log_parser_lizard.aspx +[SQL Server Data Tools]:https://docs.microsoft.com/en-us/sql/ssdt/download-sql-server-data-tools-ssdt +[Dbeaver]:http://dbeaver.jkiss.org/ +[HeidiSQL]:http://www.heidisql.com +[Red Gate SQL Prompt]:http://www.red-gate.com/products/sql-development/sql-prompt/ +[Rapid SQL]:https://www.idera.com/rapid-sql-ide/overview +[dbForge Studio]:https://www.devart.com/dbforge/sql/studio/ +[Dell Toad for SQL Server]:http://software.dell.com/products/toad-for-sql-server/ +[DataGrip]:https://www.jetbrains.com/datagrip/ +[SQL Enlight]:http://www.ubitsoft.com/products/sqlenlight/index.php +[SoftTree SQL Assistant]:https://www.softtreetech.com/sqlassist/ +[EMS SQL Management Studio]:http://www.sqlmanager.net/en/products/studio/mssql +[Aqua Data Studio]:http://www.aquafold.com/aquadatastudio.html +[RazorSQL]:https://www.razorsql.com/ +[Database .NET]:http://fishcodelib.com/Database.htm +[SqlPad]:https://github.com/rickbergfalk/sqlpad +[mssql for Visual Studio Code]:https://github.com/Microsoft/vscode-mssql +[Navicat for SQL Server]:https://www.navicat.com/en/products/navicat-for-sqlserver +[Navicat Premium]:https://www.navicat.com/en/products/navicat-premium +[DbVisualizer]:http://www.dbvis.com/ +[Adminer]:https://www.adminer.org/ + +[LGPL-3.0]:http://www.gnu.org/licenses/lgpl-3.0.txt +[MIT]:https://opensource.org/licenses/MIT +[Apache]:http://www.apache.org/licenses/