Format, beautify, and validate SQL queries with intelligent formatting and real-time syntax checking. Perfect for database developers and analysts.
beginnerDeveloper Tools
✨ Key Features
🗃️ Multi-Database Support
Format SQL for MySQL, PostgreSQL, SQLite, and other major databases
✅ Real-time Validation
Instant syntax checking with detailed error messages and suggestions
🎨 Smart Formatting
Intelligent indentation and keyword alignment for maximum readability
✅ Valid SQL Query
Your SQL syntax looks good!
SQL Query
Formatted SQL
🎯 SQL Best Practices
📝 Writing Clean SQL
- • Use meaningful table and column aliases
- • Capitalize SQL keywords (SELECT, FROM, WHERE)
- • Indent subqueries and complex conditions
- • Use consistent naming conventions
- • Comment complex logic for clarity
⚡ Performance Tips
- • Use indexes on frequently queried columns
- • Avoid SELECT * in production queries
- • Use LIMIT to restrict result sets
- • Consider query execution plans
🔧 Supported SQL Features
- • SELECT, INSERT, UPDATE, DELETE statements
- • JOIN operations (INNER, LEFT, RIGHT, FULL)
- • Subqueries and CTEs (WITH clauses)
- • Window functions and aggregations
- • CASE statements and conditionals
- • DDL statements (CREATE, ALTER, DROP)
🗃️ Database Compatibility
- • MySQL and MariaDB
- • PostgreSQL
- • SQLite
- • SQL Server (T-SQL)
- • Oracle Database