SQLPrep: Learn SQL & Practice

By CHENG QIAO on AppTrack Ninja.

Run Queries, Interview Prep

SQLPrep helps data analyst candidates practice SQL in the minutes between real responsibilities. Work through daily multiple-choice drills, then write real queries against bundled SQLite databases. Every exercise runs locally on your device, so practice is fast, private, and available without an account or internet connection. What you can practice: - SELECT, WHERE, ORDER BY, and LIMIT - Aggregate functions, GROUP BY, and HAVING - JOIN basics and advanced JOIN patterns - Subqueries, CASE, and NULL handling - Window functions - Mixed interview-style SQL problems SQLPrep is built for focused in…

Categories: Education, Developer Tools

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