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homework 1: What changes are you trying to make? (e.g. Adding or removing code, refactoring existing code, adding reports)learned how to make What did you learn from the changes you have made?how to assess 1 to 1, 1 to many, and many to many relationships Was there another approach you were thinking about making? If so, what approach(es) were you thinking of?drawing the logical model by hand, but draw.io was easier Were there any challenges? If so, what issue(s) did you face? How did you overcome it?figuring out relationships by looking at the data models alone is difficult - I need to look a the actual table of data to assess the relationships How were these changes tested?n/a A reference to a related issue in your repository (if applicable)n/a Checklist
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HW1 marked. |
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HW2 marked. |
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Homework 3: What changes are you trying to make? (e.g. Adding or removing code, refactoring existing code, adding reports)creating temp tables, retrieving information that satisfies certain criteria, adding new information to a table What did you learn from the changes you have made?how to use an aggregate functions, join two tables, group by the values in a column, create a temp table, add new rows to a table, and manipulate dates in a table Was there another approach you were thinking about making? If so, what approach(es) were you thinking of?none Were there any challenges? If so, what issue(s) did you face? How did you overcome it?manipulating dates using strftime(), a bit of googling helped How were these changes tested?by running the commands in sqlite A reference to a related issue in your repository (if applicable)n/a Checklist
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Homework 6: What changes are you trying to make? (e.g. Adding or removing code, refactoring existing code, adding reports)Writing a reflection into the homework 6.md file What did you learn from the changes you have made?how ethics, inclusion and social norms pay a huge role in how data is created and managed, and the importance of making inclusive decisions when designing databases Was there another approach you were thinking about making? If so, what approach(es) were you thinking of?none Were there any challenges? If so, what issue(s) did you face? How did you overcome it?none How were these changes tested?n/a A reference to a related issue in your repository (if applicable)n/a Checklist
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Homework 4: What changes are you trying to make? (e.g. Adding or removing code, refactoring existing code, adding reports)how to manipulate strings in sqlite and use windowed functions to retrieve data What did you learn from the changes you have made?how to use use coalesce, Row_number, count(), dense_rank, instr, substr, strftime Was there another approach you were thinking about making? If so, what approach(es) were you thinking of?none Were there any challenges? If so, what issue(s) did you face? How did you overcome it?I coulnd't do the last question involving UNION How were these changes tested?by running the commands in sqlite A reference to a related issue in your repository (if applicable)n/a Checklist
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HW4 is incomplete, union query is missing, HW5 is missing. |
2 participants
What changes are you trying to make? (e.g. Adding or removing code, refactoring existing code, adding reports)
navigating the basics of retrieving information and data manipulation from databases using SQL
What did you learn from the changes you have made?
how to select certain columns/rows from a table, retrieve data that satisfies certain conditions and group data by certain shared characteristics, output a query result into a new column, join two tables together given they share at least one common key
Was there another approach you were thinking about making? If so, what approach(es) were you thinking of?
none
Were there any challenges? If so, what issue(s) did you face? How did you overcome it?
learning all the commands and using them was tough since it's a new language, but I used the live coding guides and a bit of googling to help me out.
How were these changes tested?
by running the commands in sql
A reference to a related issue in your repository (if applicable)
none
Checklist