
DataLemur
SQL Teaching
Practice real SQL interview questions in your browser on a real Postgres engine. Free tutorial, concept cards, sandbox, and graded labs.
DataLemur
SQL Police Department
SqlInt
SQL Play
HackerRank
Codecademy
LeetCode
Entertaining way to learn SQL
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Website, pricing, platforms and company facts side by side.
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SQL FOR ZOMBIES
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| Website | sqlcrab.com | alexpineda.gumroad.com |
| Pricing | — | |
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In their own words, as submitted to SaaSHub.

SQLCrab is a place to train for SQL interviews. Learn the fundamentals with a step-by-step tutorial, lock in key ideas with concept cards, experiment in the sandbox, then test yourself with graded labs built around the questions employers actually ask. Real Postgres, Real practice. No setup, just...
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What each product offers, as listed by its team.

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Practice SQL Interview Questions & Data Science Interview Questions asked by FAANG.
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Learn SQL while solving crimes! Climb the ranks of SQL PD.
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