[mohammadgoudarzirad]

What changes are you trying to make? (e.g. Adding or removing code, refactoring existing code, adding reports)

SQL Assignment 1

What did you learn from the changes you have made?

I learned a lot about SQL, including SELECT, WHERE, CASE, JOIN, aggregate functions, temporary tables, and date functions. I also learned to pay more attention to small syntax mistakes.

Was there another approach you were thinking about making? If so, what approach(es) were you thinking of?

there were different ways to write the query

Were there any challenges? If so, what issue(s) did you face? How did you overcome it?

I made some small syntax mistakes and fixed them by checking the error messages and testing each query

How were these changes tested?

checking th DB Browser queries

A reference to a related issue in your repository (if applicable)

n/a

Checklist

[ *] I can confirm that my changes are working as intended

[github-actions]

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