lucasdicioccioFeb 13, 2025

There was some demand for a #rant about how #SQL is taught. I'm especially annoyed at Venn-diagrams you find to try to explain LEFT/RIGHT/INNER/OUTER joins.

So it's not just a rant, I also make and comment my own pictures.

Here we go.

https://dicioccio.fr/they-teach-you-sql-wrong.html

Are you entertained yet?

Lucas DiCioccio's Blog - They teach you SQL wrong!

This article is an inflammatory rant about the typical SQL explanation of what joins are in SQL. That said, I try to do a better explanation too, so it's not _just a rant_. Feel free to roast me.

Show threadGustouFeb 14, 2025
@lucasdicioccio thank you! I never understood the Venn diagram explanation, now I understand why!
Show threadlucasdicioccioFeb 14, 2025
@gustou are you in Paris these days?
Show threadGustou
@lucasdicioccio Yes we are back!
Feb 14, 2025 at 9:52pmWeb
Show threadlucasdicioccioFeb 15, 2025
@gustou todo: 🍻