Oracle-锁的查询和处理

1.查出锁定object的session的信息以及被锁定的object名

SELECT L.SESSION_ID SID,
       S.SERIAL#,
       L.LOCKED_MODE,
       L.ORACLE_USERNAME,
       L.OS_USER_NAME,
       S.MACHINE,
       S.TERMINAL,
       O.OBJECT_NAME,
       S.LOGON_TIME
  FROM V$LOCKED_OBJECT L, ALL_OBJECTS O, V$SESSION S
 WHERE L.OBJECT_ID = O.OBJECT_ID
   AND L.SESSION_ID = S.SID
 ORDER BY SID, S.SERIAL#;

2.查出锁定表的session的sid, serial#,os_user_name, machine name, terminal和执行的语句  

SELECT L.SESSION_ID SID,
       S.SERIAL#,
       L.LOCKED_MODE,
       L.ORACLE_USERNAME,
       S.USER#,
       L.OS_USER_NAME,
       S.MACHINE,
       S.TERMINAL,
       A.SQL_TEXT,
       A.ACTION
  FROM V$SQLAREA A, V$SESSION S, V$LOCKED_OBJECT L
 WHERE L.SESSION_ID = S.SID
   AND S.PREV_SQL_ADDR = A.ADDRESS
 ORDER BY SID, S.SERIAL#;

2、解锁表

--kill session语句
--'151,3027'格式：'SID,SERIAL#'
ALTER SYSTEM KILL SESSION '61,563';