select * from table for update
select * from all_tables where table_name like 'table'
select t2.username,
t2.sid,
t2.serial#,
t3.object_name,
t2.OSUSER,
t2.MACHINE,
t2.PROGRAM,
t2.LOGON_TIME,
t2.COMMAND,
t2.LOCKWAIT,
t2.SADDR,
t2.PADDR,
t2.TADDR,
t2.SQL_ADDRESS,
t1.LOCKED_MODE
from v$locked_object t1, v$session t2, dba_objects t3
where t1.session_id = t2.sid
and t1.object_id = t3.object_id
order by t2.logon_time;
alter system kill session 'sid,seial#';
alter system kill session '895,24930';
SELECT s.USERNAME,s.SID,s.SERIAL#,s.LOGON_TIME FROM V$SESSION S,V$LOCKED_OBJECT L
WHERE S.SID = L.SESSION_ID ;