SQL Linter

SQL Query Linter

Analyze your SQL queries for syntax errors, security vulnerabilities, and performance best practices.

SQL Query

Lint Results

Enter SQL query above and click "Lint SQL Query" to see results

What We Check

Security Issues:

SQL injection patterns, unsafe queries

Performance:

SELECT *, ORDER BY without LIMIT

Best Practices:

WHERE clauses, table aliases, reserved words

Syntax Errors:

Unmatched quotes, parentheses, JOIN clauses

SQL Best Practices

Always use WHERE:

Include WHERE clause in UPDATE/DELETE statements

Specify columns:

Avoid SELECT *, list specific columns needed

Use table aliases:

Improve readability in complex queries

Prevent injection:

Use parameterized queries and input validation