oracle死锁处理

1）查找死锁的进程：
sqlplus "/as sysdba"
SELECT s.username,l.OBJECT_ID,l.SESSION_ID,s.SERIAL#,l.ORACLE_USERNAME,l.OS_USER_NAME,l.PROCESS FROM V$LOCKED_OBJECT l,V$SESSION S WHERE l.SESSION_ID=S.SID;
2）kill掉这个死锁的进程：
alter system kill session ‘sid,serial#’;  （其中sid=l.session_id）
3）如果还不能解决，
select pro.spid from v$session ses,v$process pro where ses.sid=XX and ses.paddr=pro.addr; 
其中sid用死锁的sid替换。
exit
ps -ef|grep spid
其中spid是这个进程的进程号，kill掉这个Oracle进程。

select username,lockwait,status,machine,program from v$session where sid in
(select session_id from v$locked_object);

select sql_text from v$sql where hash_value in
(select sql_hash_value from v$session where sid in
(select session_id from v$locked_object));

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;