> 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/connectors/mariadb-connector-c/api-functions/mysql_rollback.md).

# mysql\_rollback

## Syntax

```c
my_bool mysql_rollback(MYSQL * mysql);
```

## Parameter

* `mysql` - a mysql handle, which was previously allocated by [mysql\_init()](/docs/connectors/mariadb-connector-c/api-functions/mysql_init.md) or [mysql\_real\_connect()](/docs/connectors/mariadb-connector-c/api-functions/mysql_real_connect.md).

## Description

Rolls back the current transaction for the database.

## Return Value

Returns zero on success, nonzero if an error occurred.

{% hint style="info" %}
`mysql_rollback()` will not work as expected if [autocommit](/docs/server/server-management/variables-and-modes/server-system-variables.md#autocommit) mode was set or the storage engine does not support transactions.
{% endhint %}

## See Also

* [mysql\_commit()](/docs/connectors/mariadb-connector-c/api-functions/mysql_commit.md)
* [mysql\_autocommit()](/docs/connectors/mariadb-connector-c/api-functions/mysql_autocommit.md)

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