> For the complete documentation index, see [llms.txt](https://docs.collibra.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.collibra.com/data-quality-self-hosted/core-concepts/dq-rules/rule-types/sql-based-rules.md).

# SQL Based Rules

Collibra Data Quality uses ANSI-compliant SQL and offers pushdown rules that leverage specific database syntax.