1.查看被锁住的表
select b.owner,b.object_name,a.session_id,a.locked_mode from v$locked_object a,dba_objects b where b.OBJECT_ID=a.OBJECT_ID;
2.查看session
select b.username,b.sid,b.serial#,logon_time from v$locked_object a,v$session b where a.session_id=b.sid order by b.logon_time;
3.杀死session
alter system kill session 'sid,serial#';
alter system kill session '1407,34451';