Hey Product Hunt 👋 I've spent seven years as a data analyst watching people try to learn SQL the same way - filter a fake employees table, get a result, close the tab, forget everything by Thursday. The problem isn't SQL. It's that there's never a reason to care about the answer. QueryCase fixes that. You're a detective. Chief Fox briefs you on a case. You write real SQL to solve it. The JOIN matters when a suspect has an alibi. The query has a purpose. Since launching just under three weeks ago: 350+ signups, 1500+ cases completed, and people have been reaching Senior Detective level within days of starting from zero. What's live today: - 54 cases from basic SELECT through to window functions and CTEs - Duolingo-style drills between cases to reinforce concepts - Five detective ranks with timed exams and shareable certificates - Leaderboards and unlockable titles as you progress - Free Sandbox with IMDB, Spotify, NBA, Steam, Pokémon and more to query freely - Timed Investigations mode — no hints, just you and the evidence - Runs entirely in the browser via DuckDB WASM, no setup required Coming next week: Career Hub with FAANG-style SQL interview questions built around real company patterns. The longer goal is to make QueryCase the centralised SQL platform for everyone; new learners, career switchers, and experienced analysts who want to stay sharp. Rookie path is completely free. Happy to answer anything - the DuckDB implementation, the gamification decisions, anything about the build.

QueryCase

Learn SQL by solving detective mystery cases

Learn SQL by solving detective mystery cases