1、查询oracle被锁对象及其语句

SELECT a_s.owner,
  a_s.object_name,
  a_s.object_type,
  VN.SID,
  VN.SERIAL#,
  VS.SPID "OS_PID",
  VN.PROCESS "CLIENT_PID",
  VN.USERNAME,
  VN.OSUSER,
  VN.MACHINE "HOSTNAME" ,
  VN.TERMINAL,
  VN.PROGRAM,
  TO_CHAR(VN.LOGON_TIME,'YYYY-MM-DD HH24:MI:SS')"LOGIN_TIME",
  'alter system kill session '''||vn.sid||','||vn.serial#||''';' "ORACKE_KILL",
  'kill -9 '|| VS.SPID "OS_KILL"
FROM ALL_OBJECTS A_S,
  V$LOCKED_OBJECT V_T,
  V$SESSION VN,
  V$PROCESS VS
WHERE A_S.OBJECT_ID=V_T.OBJECT_ID
AND V_T.SESSION_ID =VN.SID
AND VS.ADDR=VN.PADDR
AND VN.USERNAME NOT IN('SYSMAN','SYS');

2、查询该sid的sql语句

select * from v$sql vl,v$session vn
where vl.ADDRESS= decode(vn.SQL_ADDRESS,null,vn.PREV_SQL_ADDR,VN.SQL_ADDRESS)
and vn.sid=&sid;

3、解锁

alter system kill session 'sid,serial#';
--note:不能kill自身

4、查询被锁对象增强版

SELECT DDL.OWNER AS 用户,
       DDL.NAME  AS 对象,
       DDL.type  AS 类型,
       VS.OSUSER AS OS_USER,
       VS.MACHINE,
       VS.STATUS,
       VS.PROGRAM,
       VS.LOGON_TIME AS "LOGIN_TIME",
       VP.SPID,
       'kill -9 ' || VP.SPID AS OS_KILL,
       vs.sid,
       vs.SERIAL#,
       'alter system kill session ''' || vs.sid || ',' || vs.serial# ||
       ''';' "ORACKE_KILL"
  FROM DBA_DDL_LOCKS DDL, V$SESSION VS, V$PROCESS VP
 WHERE DDL.SESSION_ID = VS.SID
   AND VS.PADDR = VP.ADDR;