record is locked by another user

 select * from v$lock ;
根据你要处理的那个表，找到相應的sid以后
select * from v$session where sid=上面找到的sid
然后
alter system kill session 'sid,serial';

select t2.username,t2.sid,t2.serial#,t2.logon_time
from v$locked_object t1,v$session t2
where t1.session_id=t2.sid order by t2.logon_time;
--查看锁
--alter system kill session 'sid,serial#';
--把锁给KILL掉
alter system kill session '151,14678';