> For the complete documentation index, see [llms.txt](https://www.ducksql.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.ducksql.com/sql.md).

# SQL 시작하기

- [SQL이란?](https://www.ducksql.com/sql/sql.md)
- [SELECT 기본](https://www.ducksql.com/sql/select.md)
- [함수 사용하기](https://www.ducksql.com/sql/undefined.md)
- [집계하기](https://www.ducksql.com/sql/undefined-1.md)
- [조인](https://www.ducksql.com/sql/undefined-2.md)
- [서브 쿼리](https://www.ducksql.com/sql/undefined-3.md)
- [복잡한 쿼리 짜기](https://www.ducksql.com/sql/undefined-4.md)