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monzchan
approved these changes
Nov 28, 2025
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| SELECT *, | ||
| count() over (partition by customer_id, product_id) as pur_times |
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In SQL, COUNT() requires a column or *
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| ranked as ( | ||
| select *, | ||
| row_number() over (order by total_sales ASC) as worst_rank, |
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ROW_NUMBER() will return only one row per rank and does not handle ties. Assignment hint suggested RANK() for handling ties.
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What changes are you trying to make? (e.g. Adding or removing code, refactoring existing code, adding reports)
Competed required questions for assignment 2.
What did you learn from the changes you have made?
Various SQL techniques.
Was there another approach you were thinking about making? If so, what approach(es) were you thinking of?
N/A
Were there any challenges? If so, what issue(s) did you face? How did you overcome it?
N/A
How were these changes tested?
Yes.
A reference to a related issue in your repository (if applicable)
N/A
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