SQLBolt offers interactive SQL lessons and exercises for learning database queries.
StarSQL
Select Star SQL is an interactive book that teaches SQL by running queries against a real-world dataset.
About StarSQL
StarSQL is an interactive online book for learning SQL. Readers write and run queries against a real-world dataset while completing projects, rather than only reading a reference page. The site describes its aim as a mental model for writing SQL, and it is designed for readers with little or no coding knowledge.
The book has five chapters plus front matter. Its chapters use data about executions to introduce query structure, aggregation, grouping and joins. Each chapter is designed to take about 30 minutes. The subject matter is capital punishment, which the chapters treat as the basis for their examples. The prose is licensed under Creative Commons BY-SA 4.0, and the code and data are released into the public domain under CC0.
Key features
- Interactive chapters that run SQL queries against a real-world dataset
- Five chapters covering query structure, aggregation, grouping and joins
- Projects built around questions about execution data
- Chapters designed to take about 30 minutes each
- Language selector lists seven versions, including Spanish, French and Hebrew
- Free to use, with no ads, registration or downloads stated
Best for: Beginners with little or no coding experience who want to learn SQL through hands-on practice with real data.
Good for
- Free of charge and free of ads, according to the site
- Does not require registration or downloads
- Teaches through queries against real data rather than reference material alone
StarSQL at a glance
- Website
- selectstarsql.com
- Category
- Education & Learning › Learn to Code
- Type
- Website
- Pricing
- Free
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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StarSQL FAQ
Do I need programming experience before starting?
The site says it expects little to no coding knowledge.
How long does each chapter take?
Each chapter is designed to take about 30 minutes.
Does the site require an account?
No. The site states that it doesn't require registration or downloads.
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