> ## Documentation Index
> Fetch the complete documentation index at: https://docs.risingwave.com/llms.txt
> Use this file to discover all available pages before exploring further.

# ALTER SYSTEM

> The `ALTER SYSTEM` command modifies the value of a server configuration parameter.

You can use this command to configure some parameters, like the [system parameters](/operate/view-configure-system-parameters#how-to-configure-system-parameters) and [runtime parameters](/operate/view-configure-runtime-parameters#how-to-configure-runtime-parameters).

```sql Syntax theme={null}
ALTER SYSTEM SET configuration_parameter { TO | = } { value [, ...] | DEFAULT }
```

```sql Examples theme={null}
ALTER SYSTEM SET rw_streaming_enable_delta_join TO true;
```