this post was submitted on 14 Dec 2023
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Programming

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What's the best website to learn and practice SQL? (lemmy.one)
submitted 11 months ago* (last edited 11 months ago) by BurningnnTree@lemmy.one to c/programming@programming.dev
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I'm looking for a website where I can practice SQL by doing challenges. Like something where it provides you with some tables and you're tasked with writing a script to achieve a certain output. I know how to do basic SELECT and UPDATE commands and stuff, but I need a way to practice writing more complex scripts. What do you guys recommend?

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[โ€“] testfactor@lemmy.world 11 points 11 months ago (1 children)

Codewars. It has Postgres as one of the languages.

[โ€“] lemmyvore@feddit.nl 6 points 11 months ago

I second this. Learn Postgres as a beginner, it's SQL standard compliant and it has the amazing EXPLAIN feature (just add EXPLAIN in front of any query). People who start on MySQL or MariaDB have a harder time learning proper SQL concepts later.