oracle锁表问题

--1.查看哪些表被锁

select b.owner,b.object_name,l.session_id,l.locked_mode
from v$locked_object l, dba_objects b
where b.object_id=l.object_id;

--2.查看被锁表的sid 和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;

--3.解锁
alter system kill session '410,1471';
alter system kill session '206,1280';
alter system kill session '128,374';