---
{
    "title": "regexp",
    "language": "en"
}
---

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# regexp
## description
### syntax

`BOOLEAN regexp(VARCHAR str, VARCHAR pattern)`

Perform regular matching on the string str, return true if it matches, and return false if it doesn't match. pattern is a regular expression.

## example

```
// Find all data starting with 'billie' in the k1 field
mysql> select k1 from test where k1 regexp '^billie';
+--------------------+
| k1                 |
+--------------------+
| billie eillish     |
+--------------------+

// Find all data ending with 'ok' in the k1 field:
mysql> select k1 from test where k1 regexp 'ok$';
+----------+
| k1       |
+----------+
| It's ok  |
+----------+
```

## keyword
REGEXP