oracle解锁问题：Record is locked by another user

解锁方法：

1、查看锁

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;

查出被锁的记录

2、Kill

--alter system kill session 'sid,serial#';
alter system kill session '255,2074';