SQL Test Tool

Practice and test SQL queries against sample databases with instant feedback and result comparison.

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About This Tool

This free online SQL test tool allows users to practice SQL queries in a safe, sandboxed environment. Choose from multiple sample database schemas (Employees, Products, Orders), write SQL queries, and test them against predefined test cases. The tool executes your SQL, displays the results, and compares them with expected outputs to help you learn SQL syntax, joins, aggregations, and more. Perfect for beginners learning SQL or professionals brushing up on their skills.

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How to Use

Select a sample database schema from the dropdown menu.
View the database schema and sample data to understand the structure.
Write your SQL query in the editor (supports SELECT, JOIN, WHERE, GROUP BY, etc.).
Optionally add test cases with expected results to validate your query.
Click 'Run SQL Test' to execute your query and see the results.
Review the output, compare with expected results, and check for any errors.

Frequently Asked Questions

Find Quick Answers

What SQL databases does this tool support?

The tool uses SQLite syntax for compatibility and safety. Most standard SQL commands (SELECT, INSERT, UPDATE, DELETE, JOIN, etc.) are supported.

Is my data safe when using this tool?

Yes, all queries run in an isolated sandbox environment. No personal data is stored or transmitted, and queries cannot access external databases.

Can I save my SQL queries for later?

Currently, the tool doesn't save queries between sessions. You can copy your SQL code manually or use browser bookmarks to return to the tool.

What happens if my SQL query has an error?

The tool will display a clear error message with details about the syntax or logical error, helping you debug your query.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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