# Disconnecting a session
<a name="Appendix.Oracle.CommonDBATasks.DisconnectingSession"></a>

To disconnect the current session by ending the dedicated server process, use the Amazon RDS procedure `rdsadmin.rdsadmin_util.disconnect`. The `disconnect` procedure has the following parameters. 


****  

| Parameter name | Data type | Default | Required | Description | 
| --- | --- | --- | --- | --- | 
|  `sid`  |  number  |  —  |  Yes  |  The session identifier.  | 
|  `serial`  |  number  |  —  |  Yes  |  The serial number of the session.  | 
|  `method`  |  varchar  |  'IMMEDIATE'  |  No  |  Valid values are `'IMMEDIATE'` or `'POST_TRANSACTION'`.  | 

The following example disconnects a session.

```
begin
    rdsadmin.rdsadmin_util.disconnect(
        sid    => sid, 
        serial => serial_number);
end;
/
```

To get the session identifier and the session serial number, query the `V$SESSION` view. The following example gets all sessions for the user `AWSUSER`.

```
SELECT SID, SERIAL#, STATUS FROM V$SESSION WHERE USERNAME = 'AWSUSER';
```

The database must be open to use this method. For more information about disconnecting a session, see [ALTER SYSTEM](http://docs.oracle.com/cd/E11882_01/server.112/e41084/statements_2014.htm#SQLRF53166) in the Oracle documentation.