Kill multiple sessions in Oracle

Kill multiple sessions in Oracle Database
We often get task to kill multiple sessions which are active,inactive and the session related
with a particular program.When we have one or two sessions we can kill it easily,if we have
multiple sessions we can do it as follows:
Step 1:Check the Name of the Database
sqlplus “/as sysdba”
SQL>Select name from v$database;
Step 2:How to kill all inactive session in Database
sqlplus “/as sysdba”
SQL>set heading off
SQL>spool kill21.sql
SELECT ‘ALTER SYSTEM KILL SESSION ‘||””||sid ||’,’|| serial#||””||’ immediate;’
FROM v$session WHERE status =’INACTIVE’ and type != ‘BACKGROUND’;
SQL>spool off
then execute the sql script
SQL> @kill21.sql
Note:For RAC Database where we have more than 1 instances,we need to follow step 2 on all
the Oracle instances.
How to kill all active session in Database:
sqlplus “/as sysdba”
SQL>set heading off
SQL>spool kill_active.sql
SELECT ‘ALTER SYSTEM KILL SESSION ‘||””||sid ||’,’|| serial#||””||’ immediate;’
FROM v$session WHERE status =’ACTIVE’ and type != ‘BACKGROUND’;
SQL>spool off
Note:For RAC Database where we have more than 1 instances,we need to follow step 2 on all
the Oracle instances.
How to kill all ODI sessions in Database:
sqlplus “/as sysdba”
SQL>set heading off
SQL>set lines 1000
SQL>set linesize 2000
SQL>spool kill_active.sql
SELECT ‘ALTER SYSTEM KILL SESSION ‘||””||sid ||’,’|| serial#||””||’ immediate;’
FROM v$session
WHERE status =’ACTIVE’ AND USERNAME LIKE ‘%ODI%’;
SQL>spool off
Note:For RAC Database where we have more than 1 instances,we need to follow step 2 on
all the Oracle instances.
How to get the list of Users and Processes running ODI sessions:
SQL> SET LINESIZE 100
COLUMN spid FORMAT A10
COLUMN username FORMAT A10
COLUMN program FORMAT A45
SELECT s.inst_id,s.sid,s.serial#,p.spid, s.username, s.program
FROM
gv$session s
JOIN gv$process p ON p.addr = s.paddr AND p.inst_id = s.inst_id
WHERE s.type != ‘BACKGROUND’ AND S.USERNAME LIKE ‘%ODI%’;
How to kill a particular object blocking session:
1.Find the tables(objects) which are locked:
SELECT o.owner, o.object_name, o.object_type, o.last_ddl_time, o.status, l.session_id,
l.oracle_username, l.locked_mode
FROM dba_objects o, gv$locked_object l
WHERE o.object_id = l.object_id and o.object_name=’XX_OBJECT’;
2.Killing the session holding the lock:
–Find the serial# for the sessions holding the lock:
SQL> select SERIAL# from v$session where SID=667;
SERIAL#
———78657
SQL> alter system kill session ‘667,78657’;
Note:For RAC Database where we have more than 1 instances,we need to follow step 2 on
all the Oracle instances.
Thanks