1，查看被锁对象及锁类型、锁模式
SELECT S.SID SESSION_ID,
       S.USERNAME,
       DECODE (LMODE,
               0, ' None ',
               1, ' Null ',
               2, ' Row-S(SS) ',
               3, ' Row-X(SX) ',
               4, ' Share',
               5, 'S/Row-X (SSX) ',
               6, 'Exclusive ',
               TO_CHAR (LMODE))
          MODE_HELD,
       DECODE (REQUEST,
               0, ' None ',
               1, ' Null ',
               2, ' Row-S(SS) ',
               3, ' Row-X(SX) ',
               4, ' Share',
               5, 'S/Row-X (SSX) ',
               6, 'Exclusive ',
               TO_CHAR (REQUEST))
         MODE_REQUESTED,
       O.OWNER|| ' . ' || O.OBJECT_NAME|| ' ( ' || O.OBJECT_TYPE|| ' ) ' as OBJECT_NAME,
       S.TYPE LOCK_TYPE,
       L.ID1 LOCK_ID1,
       L.ID2 LOCK_ID2
FROM V$LOCK L, SYS.DBA_OBJECTS O,V$SESSION S
WHERE L.SID = S.SID AND L.ID1 = O.OBJECT_ID；

2，使用sid信息查看视图V$SESSION，获取sid,serial#信息
select * from v$session where sid=？

3，通知会话用户发布rollback或commit命令结束事务，或强制结束会话
alter system kill session "sid,serial#";

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Oracle查看被锁对象及解锁方法

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