I Built an Interactive SQL Quiz App for devs and analysts

What I built! SQLQuiz If you've ever tried to level up your SQL skills, you know the problem: reading documentation is boring, and most practice tools feel like homework. I wanted something to build something that felt more like a game — fast, satisfying, and actually challenging! So I built SQLQuiz — an interactive SQL quiz app with 62 questions across three difficulty tiers, a built-in SQL cheat sheet, and a personal performance dashboard--and it's launched! What exactly is it!?!? What It Is SQLQuiz is a dark-themed, browser-based SQL practice app. You pick a quiz mode, answer multiple choice questions against a fictional company_db database, and get instant feedback with detailed explanations. Three free quiz modes: 🟢 Easy — Core SELECT fundamentals: filtering, sorting, WHERE clauses, LIMIT, DISTINCT 🔵 Intermediate — Aggregates, GROUP BY, JOINs, subqueries, window functions, CASE Two premium quiz modes: 🏆 Master — All 40 beginner + intermediate questions shuffled into one full ga