What features does the SQL Query Builder offer?

The tool provides visual query building with drag-drop interface, support for MySQL, PostgreSQL and SQL Server, real-time syntax highlighting, query optimization tips, and the ability to test queries on sample data without database connection.

How do I build queries visually?

Select tables from the schema viewer, drag them to the canvas, and connect them to create JOINs. Add columns, conditions, and grouping using the intuitive interface. The SQL is generated automatically and can be edited directly.

Which database systems are supported?

The builder supports MySQL, PostgreSQL, and SQL Server dialects. You can switch between them to see dialect-specific syntax. All processing happens in your browser for maximum privacy and security.

Can I test queries without a database connection?

Yes! The tool includes sample datasets and uses SQL.js to execute queries directly in your browser. This allows you to test and validate queries without connecting to an actual database.

Can I convert queries between database dialects?

Absolutely! The tool can automatically convert queries between MySQL, PostgreSQL, and SQL Server syntax. Simply switch the target database type and the query will be adjusted for dialect-specific functions and syntax.