Assignment two

[bhuiyaau]

UofT-DSI | SQL - Assignment 2

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

I made changes using advanced techniques in SQL that involved types and subtypes, inserting new columns and tables, and creating logical models

What did you learn from the changes you have made?

I learned a whirlwind of advanced techniques that I am still trying to comprehend. I thoroughly enjoyed building logical models and piecing components together though

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

I heavily referenced google searches for the queries

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

Lots of challenges. I heavily referenced google searches for the queries and the class codes because some of them were really complicated to figure out. I also had challenges with git hub yet again. I still don't clearly know what I'm doing wrong. But was able to troubleshoot with Dmytro to figure it out.

How were these changes tested?

Honestly, it was through SQL to see if I had any errors came up, and then also checking with a colleague.

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

I had issues I had changes on the remote that were made “in parallel” with your local changes. I would appreciate more clarity on what that actually means.

Checklist

• I can confirm that my changes are working as intended

[anjali-deshpande-hub]

Very well done! 70/70

[anjali-deshpande-hub]

Your query correctly filters by product_id and product_name . The requirement is to delete the older record for the whatever product you added. You can find the oldest record (e.g., using MIN(snapshot_timestamp)) and delete only that row.