Help Center > > Developer Guide> SQL Reference> SQL Syntax> ALTER SYSTEM KILL SESSION

ALTER SYSTEM KILL SESSION

Updated at: Mar 13, 2020 GMT+08:00

Function

ALTER SYSTEM KILL SESSION ends a session.

Precautions

None

Syntax

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ALTER SYSTEM KILL SESSION 'session_sid, serial' [ IMMEDIATE ];

Parameter Description

  • session_sid, serial

    Specifies SID and SERIAL of a session (see examples for format).

    Value range: The SIDs and SERIALs of all sessions that can be queried from the system catalog V$SESSION.

  • IMMEDIATE

    Indicates that a session will be ended instantly after the command is executed.

Examples

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-- Query session information:
SELECT sid,serial#,username FROM V$SESSION;

       sid       | serial# | username 
-----------------+---------+----------
 140131075880720 |       0 | dbadmin
 140131025549072 |       0 | dbadmin
 140131073779472 |       0 | dbadmin
 140131071678224 |       0 | dbadmin
 140131125774096 |       0 | 
 140131127875344 |       0 | 
 140131113629456 |       0 | 
 140131094742800 |       0 | 
(8 rows)

-- End the session whose SID is 140131075880720:
ALTER SYSTEM KILL SESSION '140131075880720,0' IMMEDIATE;

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