oracle表被用户锁住 解决方法

（1）查看被锁的表对应的session_id
         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）根据session_id找到b.sid,b.serial#
         select a.session_id,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）杀掉对应进程
        alter system kill session'sid,serial#';
        alter system kill session'428,48737';

要用具有dba权限的用户才能访问 v$locked_object 视图