Hands-on coding exercises, challenges, and real-world practice platforms.
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- CodeChef SQL Practice Free
- Interactive SQL course with topic-wise case studies covering JOINs, subqueries, and aggregate functions.
- DB-Fiddle Free
- Free online SQL database playground.
- DBeaver Free
- Free multi-platform database tool supporting all popular databases for querying and administration.
- Google BigQuery Sandbox Free
- Free cloud platform for practicing SQL on real-world public datasets with just a Google account.
- GUVI SQLKata Free
- Structured SQL coding challenges based on real company scenarios with auto-grading and rewards.
- Hackr.io SQL Tutorials Free
- Community-curated directory of the best SQL tutorials and courses for learning SQL.
- Learn SQL Online Free
- Interactive SQL tutorials for beginners with hands-on exercises.
- Mode SQL Tutorial Free
- SQL analytics tutorial for data analysis.
- Oracle Live SQL Free
- Oracle's free online SQL workspace for running SQL and PL/SQL scripts on live Oracle databases.
- pgExercises Free
- PostgreSQL exercises from basic to advanced with a real database schema.
- Practice-SQL Free
- Free SQL practice platform with online terminal offering easy, medium, and hard query challenges.
- Scaler SQL Topics Free
- Curated interactive learning space for mastering SQL skills with basic and advanced concepts.
- Schemaverse Free
- SQL-based space strategy game.
- Select Star SQL Free
- Free SQL tutorial based on real datasets.
- SQL Drills Free
- 300+ free SQL exercises organized by difficulty covering SELECT, JOINs, GROUP BY, and subqueries.
- SQL Practice Free
- Browser-based SQL practice with instant query execution and results.
- SQL Practice Online Free
- SQL playground supporting PostgreSQL, MySQL, SQL Server with FAANG-style interview questions.
- SQL Query Lab Free
- Practice SQL queries against in-browser SQLite databases with 74 exercises across real schemas.
- SQL Zoo Free
- Interactive SQL tutorials and exercises.
- SQLbolt Free
- Interactive SQL lessons and exercises.
- SQLBolt Interactive Free
- Interactive SQL tutorial with exercises built into the browser.
- SQLFiddle Free
- Online tool for testing SQL queries.
- SQLite Online Free
- Online SQL IDE supporting SQLite, PostgreSQL, MySQL, SQL Server with import and charting.
- SQLPractice.in Free
- Free online SQL compiler with real-world interview questions from top tech companies.
- SQLTeaching Free
- Interactive SQL lessons with real-time query execution in the browser.
- W3Schools SQL Free
- SQL tutorial with interactive exercises.
- DataLemur Freemium
- SQL interview questions from top tech companies with solutions.
- EverSQL Freemium
- AI-powered SQL query optimization tool that automatically analyzes and tunes slow SQL queries.
- HackerRank - SQL Freemium
- SQL practice problems from basic to advanced.
- LearnSQL.com Freemium
- Interactive SQL learning platform with step-by-step courses and real-time feedback across databases.
- LeetCode - SQL Freemium
- SQL interview problems and solutions.
- SQL Academy Freemium
- Learn SQL with interactive lessons and 130+ practice tasks with MySQL and PostgreSQL.
- StrataScratch Freemium
- Real SQL and Python interview questions from FAANG companies.
- SQL Habit Paid
- Story-driven SQL and data analysis course with mock interviews simulating real product challenges.