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SQL Mastery
Master patterns, not memorization.
Learning Path 1
SQLite · Browser-based practice

Learn SQL by mastering how to think.

Build confidence through guided questions, realistic business data, immediate validation, and a repeatable problem-solving framework.

0 guided exercisesProgress from basic totals and counts to interview-style percentage, rate, share, and multi-level aggregation problems.
Real SQL practiceWrite and run SQLite queries directly in your browser using a full business database.
Learn the patternUse hints, a thinking framework, feedback, progress tracking, and solution review.
Created by Morufat Ganiu© 2026 Morufat Ganiu · Contact

Module 1 · aggregation

Recognize total, count, average, maximum, minimum, per, by, percentage, rate, and share.
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Thinking framework
Hints
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Unlocks after 3 incorrect attempts.

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SQL Mastery v1.3.3 Beta · aggregationCreated by Morufat Ganiu · morufatganiuayomide@gmail.com · © 2026