Great in-depth article by collegue.

For MySQL, the price of popularity comes with a flood of questions from users on how to solve specific data-related issues. That's where this cookbook comes in. When you need quick solutions or techniques, this handy resource provides scores of short, focused pieces of code, hundreds of worked-out examples, and clear, concise explanations for programmers who don't have the time (or expertise) to resolve MySQL problems from scratch.

I work at PlanetScale and this post aligns with my thoughts on https://askdbablog.wordpress.com/2018/04/09/learning-the-fun... whether you agree or disagree on some parts.