Learn SQL in 15-minute daily sessions; no laptop required.
SQL Practice: Learn Database turns idle moments into practical data-skills training. Interactive exercises, real-world datasets, and instant feedback take you from complete beginner to job-ready - all on your iPhone.
Who it’s for
- Career changers entering tech
- Professionals adding SQL to their toolkit
- Students prepping for technical interviews
- Anyone curious about data and databases
Why it’s different
- Real business data – practice on realistic scenarios, not toy tables
- Progressive curriculum – start simple, build confidence, master complex queries
- Mobile-first design – learn anywhere, anytime
- Instant feedback & AI hints – see results, understand mistakes
- Gamified progress – streaks, XP, and achievements keep you motivated
What you’ll master
- SELECT, WHERE, and data filtering
- JOINs and relationship queries
- Aggregations (COUNT, SUM, AVG…)
- Subqueries & advanced techniques
- Core database-design concepts
Stay engaged
- Daily practice challenges
- Hardcore mode for power users
- Detailed progress stats
- Shareable achievements
Start your data journey today. No prior coding experience required — just 15 minutes of curiosity.
Privacy Policy: https://martongreber.github.io/mvp/privacy.html
Terms of Use: https://martongreber.github.io/mvp/terms.html
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