I wrote a 3-part blog series on . It's about getting back to the basics and reinforcing your mental model of things like SELECT, WHERE, JOIN, and GROUP BY.

Part 1 out today!

thoughtbot.com/blog/understand

My second blog post is up with a mental model for understanding JOINs.

thoughtbot.com/blog/understand

Sorry for the self-promo, but I'm particularly proud of these.

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And the final post tackling a step-by-step explanation of GROUP BY

thoughtbot.com/blog/understand

This is something I struggled with a lot early on and I'm excited to share my mental model.

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