oracle 查询实锁常用的sql

1 .查询谁锁定了谁--查看某个session被另一个session锁定了，很好用。

SELECT A.SID || ' is blocking ' || B.SID
FROM GV$LOCK A, GV$LOCK B
WHERE A.ID1 = B.ID1
AND A.ID2 = B.ID2
AND A.BLOCK = 1
AND B.REQUEST > 0 ;

2.查询谁被锁了

SELECT P.SPID,
A.SERIAL#,
C.OBJECT_NAME,
B.SESSION_ID,
B.ORACLE_USERNAME,
B.OS_USER_NAME,
B.LOCKED_MODE,
A.LOCKWAIT,
D.SQL_TEXT
FROM GV$PROCESS P, GV$SESSION A, GV$LOCKED_OBJECT B, ALL_OBJECTS C,GV$sqlarea D
WHERE P.ADDR = A.PADDR
AND A.PROCESS = B.PROCESS
AND C.OBJECT_ID = B.OBJECT_ID
AND a.SID = b.SESSION_ID
AND A.SQL_ADDRESS = D.ADDRESS;

3 .同样查询锁的信息

SELECT S.USERNAME,
S.SID,
S.SERIAL#,
DECODE (LO.LOCKED_MODE,
0 ,
'None' ,
1 ,
'Null' ,
2 ,
'Row-S(ss)' ,
3 ,
'Row-X(sx)' ,
4 ,
'share' ,
5 ,
's/row-x(ssx)' ,
6 ,
'Exclusive' ,
TO_CHAR(LO.LOCKED_MODE)) MODE_LOCKED,
OBJECT LO, DBA_OBJECTS DO
WHERE S.SID = LO.SESSION_ID    LO.OS_USER_NAME,
DO.OBJECT_NAME,
DO.OBJECT_TYPE
FROM V$SESSION S, V$LOCKED_
AND LO.OBJECT_ID = DO.OBJECT_ID;

5 .查询被锁的存储过程，有时候我们遇到某个存储过程编译不过去了，可以用下面的方法查询杀掉

SELECT p.SPID,S.sid
FROM V$DB_OBJECT_CACHE   OC,
V$OBJECT_DEPENDENCY OD,
DBA_KGLLOCK         W,
V$SESSION           S,
V$PROCESS           P
WHERE OD.TO_OWNER = OC.OWNER
AND OD.TO_NAME = OC.NAME
AND OD.TO_ADDRESS = W.KGLLKHDL
AND W.KGLLKUSE = S.SADDR
AND P.ADDR = S.PADDR
AND OC.NAME = 'PKG_K_TEST'

杀掉会话

--根据sid 查询psid
SELECT PRO.SPID
FROM V$SESSION SES, V$PROCESS PRO
WHERE SES.SID = : SID
AND SES.PADDR = PRO.ADDR;

--oracle 下杀掉相关进程
alter system kill session ‘sid,serial#’;

linux 下查询相关线程
ps -ef|grep spid
kill -9 spid