--注意权限问题 1.查看是否有被锁的表: select b.owner,b.object_name,a.session_id,a.locked_mode from v$locked_object a,dba_objects b where b.object_id = a.object_id 2.查看是哪个进程锁的 select b.username,b.sid,b.serial#,logon_time from v$locked_object a,v$session b where a.ses…