Oracle死锁调查

Oracle死锁调查

1.what.sql
SELECT S.SID
      ,S.USERNAME
      ,S.OSUSER
      ,NVL(S.MACHINE,'?') MACHINE
      ,NVL(S.PROGRAM,'?') PROGRAM
      ,S.PROCESS F_GROUND
      ,P.SPID B_GROUND
      ,X.SQL_TEXT
  FROM SYS.V_$SESSION S
      ,SYS.V_$PROCESS P
      ,SYS.V_$SQLAREA X
 WHERE
   S.SID  = '505'
   AND S.PADDR = P.ADDR
   AND S.TYPE != 'BACKGROUND'
   AND S.SQL_ADDRESS = X.ADDRESS
   AND S.SQL_HASH_VALUE = X.HASH_VALUE
 ORDER BY S.SID

2.引起死锁的SQL语句
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$LOCKED_OBJECT))
3. Oracle数据库死锁查询语句
SELECT T2.USERNAME
      ,T2.SID
      ,T2.SERIAL#
      ,T3.OBJECT_NAME
      ,T2.OSUSER
      ,T2.MACHINE
      ,T2.PROGRAM
      ,T2.LOGON_TIME
      ,T2.COMMAND
      ,T2.LOCKWAIT
      ,T2.SADDR
      ,T2.PADDR
      ,T2.TADDR
      ,T2.SQL_ADDRESS
      ,T1.LOCKED_MODE
  FROM V$LOCKED_OBJECT T1
      ,V$SESSION T2
      ,DBA_OBJECTS T3
 WHERE T1.SESSION_ID = T2.SID
   AND T1.OBJECT_ID = T3.OBJECT_ID
 ORDER BY T2.LOGON_TIME DESC