ORACLE查看锁（lock）情况

  SELECT /*+ RULE */

        ls.osuser os_user_name,

         ls.username user_name,

         DECODE (ls.TYPE,

                 ‘RW‘, ‘Row wait enqueue lock‘,

                 ‘TM‘, ‘DML enqueue lock‘,

                 ‘TX‘, ‘Transaction enqueue lock‘,

                 ‘UL‘, ‘User supplied lock‘)

            lock_type,

         o.object_name object,

         DECODE (ls.lmode,

                 1, NULL,

                 2, ‘Row Share‘,

                 3, ‘Row Exclusive‘,

                 4, ‘Share‘,

                 5, ‘Share Row Exclusive‘,

                 6, ‘Exclusive‘,

                 NULL)

            lock_mode,

         o.owner,

         ls.sid,

         ls.serial# serial_num,

         ls.id1,

         ls.id2

    FROM sys.dba_objects o,

         (SELECT s.osuser,

                 s.username,

                 l.TYPE,

                 l.lmode,

                 s.sid,

                 s.serial#,

                 l.id1,

                 l.id2

            FROM v$session s, v$lock l

           WHERE s.sid = l.sid) ls

   WHERE o.object_id = ls.id1 AND o.owner <> ‘SYS‘

ORDER BY o.owner, o.object_name;