Assignment two

[ofirsivan]

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

adding codes, reflecting on articles, adding diagrams

What did you learn from the changes you have made?

A LOT! this was really challenging assignment, it took me a lot of time to understand the difference between group by and partition by:)

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

I tried to solve each problem in different way and left sometimes both ways

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

SQL logic, especially joins are very challenging to understand

How were these changes tested?

running the code in DB browser

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

Checklist

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

[niyazmnazari]

Thank you for submitting assignment 2. All sections are correct.
Mark: 70/70