> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/server/reference/sql-functions/string-functions/not-regexp.md).

# NOT REGEXP

## Syntax

```bnf
expr NOT REGEXP pat, expr NOT RLIKE pat
```

## Description

This is the same as [NOT (expr REGEXP pat)](/docs/server/reference/sql-structure/operators/logical-operators/not.md).

<sub>*This page is licensed: GPLv2, originally from*</sub> [<sub>*fill\_help\_tables.sql*</sub>](https://github.com/MariaDB/server/blob/main/scripts/fill_help_tables.sql)

{% @marketo/form formId="4316" %}