#Dynamic sql to kill session oracle rac how to#

Query to generate kill oracle session command for all session with the given module and status being inactive col event format a30 Query to generate kill session command for all session with the given schema Name select 'alter system kill session ' ||''''|| sid||','|| serial#||''''||' ' from v$session where SCHEMANAME='SCOTT' Some Useful Queries for kill oracle session We will use immediate,if we want to immediately kill the session.

We can use POST_TRANSACTION in case, we need to wait for the transaction to commit or rollback. Unlike kill session command, this command kills the dedicated server process (or virtual circuit when using Shared Sever), which is equivalent to killing the server process from the operating system. There is another command which can be used to kill Oracle session alter system disconnect session 'SID,SERIAL#' POST_TRANSACTION|IMMEDIATE ORA-00028: your session has been killed alter system disconnect session The row for the terminated session is removed from V$SESSION after the user attempts to use the session again and receives the ORA-00028 message. When an inactive session has been terminated, the STATUS of the session in the V$SESSION view is KILLED.

The message is not returned until the user subsequently attempts to use the terminated session. If the session is not making a SQL call to Oracle Database (is INACTIVE) when it is terminated, the ORA-00028 message is not returned immediately. Otherwise in case for Marked for kill session ,it will wait for 5 min. The only difference it makes is that it return the control immediately. We can also use kill session command like ALTER SYSTEM KILL SESSION 'SID, SERIAL#, IMMEDIATE and then kill it kill -9 įor Window, command will be orakill SID SPID Once you receive the SPID, you can login to the database server and kill the spid ps -ef |grep Ĭonfirm this is Oracle database shadow process. –RAC databases SELECT s.inst_id, s.sid, s.serial#, p.spid –non RAC databases SELECT s.sid, s.serial#, p.spid

#Dynamic sql to kill session oracle rac how to#

Now how to kill the server process associated with the session How to monitor transaction Rollback Progress I have a another post which in talk in detail about transaction rollback. SQL> select username, status from v$session where SID=12 Generally it is not recommended to kill session from background which has lot of undo to performed SQL> ALTER SYSTEM KILL SESSION ’42,2233' If the session is not doing undo but it is stuck somewhere, you can kill the server process in the background to clear the session.Īs such we can kill the background session in case of Undo also, it will still take time to clear the undo but in fast manner. Once the undo is over, it will be killed itself. If the command is not able to kill the session as it has to undo lot of transaction, it will return as Marked for Killed. We generally used this command when we want to clear session which is inactive and holding locks, long running session This command comes handy when you want to kill multiple session from multiple instance ALTER SYSTEM KILL SESSION 'SID, SERIAL#, instance_id is the instance where that session is running.