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SQL 포맷터

SQL 쿼리를 온라인으로 포맷하고 정리합니다.

들여쓰기:
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무료 SQL 포맷터

SQL 쿼리를 읽기 쉽게 정리합니다.

포맷 방법

  1. SQL 쿼리 붙여넣기
  2. 들여쓰기 선택
  3. 포맷 클릭
  4. 결과 복사

자주 묻는 질문

지원 SQL은?
MySQL, PostgreSQL, SQLite, SQL Server, Oracle을 지원합니다.
포맷이 동작을 바꾸나요?
아니요. 공백과 줄바꿈만 변경됩니다.
압축이란?
불필요한 공백을 제거하고 한 줄로 압축합니다.
서브쿼리 지원?
네. 적절히 들여쓰기됩니다.
데이터가 안전한가요?
네. 모든 처리가 브라우저에서 이루어집니다.

관련 도구

Additional FAQ

Why should I format my SQL?
Formatted SQL is easier to read, debug, and maintain. Well-formatted queries help you spot errors faster, improve code reviews, and are essential when sharing SQL with team members. This tool adds proper indentation and line breaks automatically.
Do different SQL dialects require different formatting?
While SQL syntax differs between MySQL, PostgreSQL, SQL Server, and Oracle, basic formatting principles (indentation, line breaks) are universal. This tool uses standard SQL formatting that works across all major dialects. Always test formatted queries in your specific database.
Can formatting help prevent SQL injection?
Formatting alone doesn't prevent SQL injection—it's purely visual. Always use parameterized queries and prepared statements to prevent injection attacks. See data validation tools for safety best practices.
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How to Use

  1. Paste your SQL query in the input field
  2. Click 'Format SQL' to beautify the query
  3. Keywords are capitalized and clauses are placed on separate lines
  4. Copy the formatted SQL for use in your project

Common Use Cases

  • Formatting complex queries for code reviews
  • Beautifying auto-generated SQL
  • Preparing queries for documentation
  • Debugging SQL syntax issues

Frequently Asked Questions

What SQL dialects are supported?
This formatter supports standard SQL syntax that works with MySQL, PostgreSQL, SQLite, SQL Server, and most other databases.
Does formatting change query behavior?
No. SQL formatting only adds whitespace and line breaks. The query logic and results remain identical.
Can I format complex queries?
Yes. The tool handles SELECT, INSERT, UPDATE, DELETE, JOIN, subqueries, CTEs (WITH clauses), and other standard SQL constructs.