> 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/secondary-functions/miscellaneous-functions/sleep.md).

# SLEEP

## Syntax

```bnf
SLEEP(duration)
```

## Description

Sleeps (pauses) for the number of seconds given by the duration argument, then returns `0`. If `SLEEP()` is interrupted, it returns `1`. The duration may have a fractional part given in microseconds.

Statements using the SLEEP() function are not [safe for statement-based replication](/docs/server/ha-and-performance/standard-replication/unsafe-statements-for-statement-based-replication.md).

## Example

```sql
SELECT SLEEP(5.5);
+------------+
| SLEEP(5.5) |
+------------+
|          0 |
+------------+
1 row in set (5.50 sec)
```

<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)

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