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  • Oracle检查锁语句

    SELECT RPAD (oracle_username, 10) o_name, session_id SID,
           DECODE (locked_mode,
                   0, 'None',
                   1, 'Null',
                   2, 'Row share',
                   3, 'Row Execlusive',
                   4, 'Share',
                   5, 'Share Row Exclusive',
                   6, 'Exclusive'
                  ) lock_type,
           object_name, xidusn, xidslot, xidsqn
      FROM v$locked_object, all_objects
     WHERE v$locked_object.object_id = all_objects.object_id;


    select s.terminal,s.machine,s.program,sid,s.serial#,
        a.oracle_username, a.process, o.owner, o.object_id, o.object_name, a.locked_mode
    from v$session s, v$locked_object a, dba_objects o
    where s.sid=a.session_id
    and o.object_id=a.object_id

    SELECT  SID, DECODE (BLOCK, 0, 'NO', 'YES') blocker,
             DECODE (request, 0, 'NO', 'YES') waiter
        FROM v$lock
       WHERE request > 0 OR BLOCK > 0
    ORDER BY BLOCK DESC;

    SELECT   bs.username "Blocking User", bs.username "DB User",
             ws.username "Waiting User", bs.SID "SID", ws.SID "WSID",
             bs.serial# "Serial#", bs.sql_address "address",
             bs.sql_hash_value "Sql hash", bs.program "Blocking App",
             ws.program "Waiting App", bs.machine "Blocking Machine",
             ws.machine "Waiting Machine", bs.osuser "Blocking OS User",
             ws.osuser "Waiting OS User", bs.serial# "Serial#",
             ws.serial# "WSerial#",
             DECODE (wk.TYPE,
                     'MR', 'Media Recovery',
                     'RT', 'Redo Thread',
                     'UN', 'USER Name',
                     'TX', 'Transaction',
                     'TM', 'DML',
                     'UL', 'PL/SQL USER LOCK',
                     'DX', 'Distributed Xaction',
                     'CF', 'Control FILE',
                     'IS', 'Instance State',
                     'FS', 'FILE SET',
                     'IR', 'Instance Recovery',
                     'ST', 'Disk SPACE Transaction',
                     'TS', 'Temp Segment',
                     'IV', 'Library Cache Invalidation',
                     'LS', 'LOG START OR Switch',
                     'RW', 'ROW Wait',
                     'SQ', 'Sequence Number',
                     'TE', 'Extend TABLE',
                     'TT', 'Temp TABLE',
                     wk.TYPE
                    ) lock_type,
             DECODE (hk.lmode,
                     0, 'None',
                     1, 'NULL',
                     2, 'ROW-S (SS)',
                     3, 'ROW-X (SX)',
                     4, 'SHARE',
                     5, 'S/ROW-X (SSX)',
                     6, 'EXCLUSIVE',
                     TO_CHAR (hk.lmode)
                    ) mode_held,
             DECODE (wk.request,
                     0, 'None',
                     1, 'NULL',
                     2, 'ROW-S (SS)',
                     3, 'ROW-X (SX)',
                     4, 'SHARE',
                     5, 'S/ROW-X (SSX)',
                     6, 'EXCLUSIVE',
                     TO_CHAR (wk.request)
                    ) mode_requested,
             TO_CHAR (hk.id1) lock_id1, TO_CHAR (hk.id2) lock_id2,
             DECODE
                (hk.BLOCK,
                 0, 'NOT Blocking',         /**//* Not blocking any other processes */
                 1, 'Blocking',             /**//* This lock blocks other processes */
                 2, 'Global',          /**//* This lock is global, so we can't tell */
                 TO_CHAR (hk.BLOCK)
                ) blocking_others
        FROM v$lock hk, v$session bs, v$lock wk, v$session ws
       WHERE hk.BLOCK = 1
         AND hk.lmode != 0
         AND hk.lmode != 1
         AND wk.request != 0
         AND wk.TYPE(+) = hk.TYPE
         AND wk.id1(+) = hk.id1
         AND wk.id2(+) = hk.id2
         AND hk.SID = bs.SID(+)
         AND wk.SID = ws.SID(+)
         AND (bs.username IS NOT NULL)
         AND (bs.username <> 'SYSTEM')
         AND (bs.username <> 'SYS')
    ORDER BY 1;

     

     

    A.查哪个过程被锁
    查V$DB_OBJECT_CACHE视图:   select * from v$db_object_cache where owner='可疑用户' and locks!=0;  -->以确定过程名;

    B.查是哪个SID
    查V$ACCESS视图:   select * from v$access where owner='该用户' and object='确定的过程名';

    C.查SID & SERIAL#
    查V$SESSION视图:  select * from v$session where sid='B中查到的ID号';       -->记录paddr
    查V$PROCESS视图:  select * from v$process where addr='上步中查到的PADDR';  -->记录SPID

    D.杀进程
    先杀Oracle进程:   alter system kill session '在C中确定的ID,在C中确定的SERIAL#';
    再杀操作系统进程: kill -9 SPID   & ORAKILL C中确定的SID C中确定的SPID

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  • 原文地址:https://www.cnblogs.com/jasonsfu/p/1152695.html
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