Skip to content

22_1 #212

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
alekseyTask wants to merge 2 commits into
base: master
Choose a base branch
from
Open

22_1 #212

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
7dc2b51
22_1
alekseyTask Sep 7, 2017
0bef6a4
22_2
alekseyTask Sep 21, 2017
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
20 changes: 19 additions & 1 deletion 1-select-tasks/22.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,3 +1,21 @@
Create a SQL query to display the name of each customer along with their most expensive purchased product:

| CompanyName | ProductName | PricePerItem |
| CompanyName | ProductName | PricePerItem |

SELECT
[cc].[CompanyName],
(SELECT TOP(1) [p].[ProductName]
FROM [dbo].[Products] [p]
JOIN [dbo].[Order Details] [OD] ON [OD].[ProductID]=[p].[ProductID]
JOIN [dbo].[Orders] [o] ON [o].[OrderID]=[OD].[OrderID]
JOIN [dbo].[Customers] [c] ON [c].[CustomerID]=[o].[CustomerID]
WHERE [p].[UnitPrice]=(
SELECT MAX([OD].[UnitPrice])
FROM [dbo].[Orders] [o]
JOIN [dbo].[Order Details] [OD] ON [OD].[OrderID]=[o].[OrderID]
WHERE [o].[CustomerID]=[c].[CustomerID] ) AND [c].[CustomerID]=[cc].[CustomerID]) AS [ProductName],
(SELECT MAX([OD].[UnitPrice])
FROM [dbo].[Orders] [o] JOIN [dbo].[Order Details] [OD] ON [OD].[OrderID]=[o].[OrderID]
WHERE [o].[CustomerID]=[cc].[CustomerID] ) AS [PricePerItem]
FROM
[dbo].[Customers] [cc]