查看锁表进程SQL语句

查看锁表进程SQL语句1：

select sess.sid,

sess.serial#,

lo.oracle_username,

lo.os_user_name,

ao.object_name,

lo.locked_mode

from v$locked_object lo,

dba_objects ao,

v$session sess

where ao.object_id = lo.object_id and lo.session_id = sess.sid;

查看锁表进程SQL语句2：

select * from v$session t1, v$locked_object t2 where t1.sid = t2.SESSION_ID;

杀掉锁表进程：

如有記錄則表示有lock，記錄下SID和serial# ，將記錄的ID替換下面的738,1429，即可解除LOCK

alter system kill session '738,1429';

用这个可以查： select s.sid,s.machine,o.object_name,l.oracle_username,l.locked_mode, 'ALTER SYSTEM KILL SESSION '''||s.sid||', '||s.serial#||''';' Command from v$locked_object l,v$session s,all_objects o where l.session_id=s.sid and l.object_id=o.object_id
可以查看哪台机器哪个用户锁了记录, 其中command是用来杀掉锁住记录的session

******************************************************************************************************************

SELECT A.OBJECT_ID, B.OBJECT_NAME, A.SESSION_ID, A.ORACLE_USERNAME, A.OS_USER_NAME, A.PROCESS, A.LOCKED_MODE FROM V$LOCKED_OBJECT A, DBA_OBJECTS B WHERE A.OBJECT_ID = B.OBJECT_ID;

SELECT T2.USERNAME, T2.SID, T2.SERIAL#, T2.LOGON_TIME FROM V$LOCKED_OBJECT T1, V$SESSION T2 WHERE T1.SESSION_ID = T2.SID ORDER BY T2.LOGON_TIME;

ALTER SYSTEM KILL SESSION 'sid, serial#';

********************************************************************************************************************

session 1: C:\>sqlplus hxg/hxg

SQL> select * from scott.t;

A B C ---------- -------------------- -------------------- 111 aa bb 222 hello world

SQL> update scott.t set b='good' where a=222;

已更新 1 行。

session 2: C:\>sqlplus scott/tiger

SQL> select * from scott.t;

A B C ---------- -------------------- -------------------- 111 aa bb 222 hello world

SQL> update t set b='asdfds' where a=222;

挂起。。。。

session 3: C:\>sqlplus "system/*** as sysdba"

SQL> select sid,serial#,username,status from v$session;

SID SERIAL# USERNAME STATUS ---- ---------- ------------------------------ -------- 146 25 SYS ACTIVE 147 11 SYS INACTIVE 148 2 HXG
INACTIVE 150 5 SCOTT ACTIVE 151 1 ACTIVE 154 1 ACTIVE 159 6 ACTIVE 160 1
ACTIVE 161 1 ACTIVE 162 1 ACTIVE 163 1 ACTIVE

SID SERIAL# USERNAME STATUS ---- ---------- ------------------------------ -------- 164 1 ACTIVE 165 1 ACTIVE 166 1
ACTIVE 167 1 ACTIVE 168 1 ACTIVE 169 1 ACTIVE 170 1 ACTIVE

已选择18行。

SQL> alter system kill session '148,2';

系统已更改。

SQL> select sid,serial#,username,status from v$session;

SID SERIAL# USERNAME STATUS ---- ---------- ------------------------------ -------- 146 25 SYS ACTIVE 147 11 SYS INACTIVE 148 2 HXG
KILLED 150 5 SCOTT INACTIVE 151 1 ACTIVE 154 1 ACTIVE 159 6 ACTIVE 160 1
ACTIVE 161 1 ACTIVE 162 1 ACTIVE 163 1 ACTIVE

SID SERIAL# USERNAME STATUS ---- ---------- ------------------------------ -------- 164 1 ACTIVE 165 1 ACTIVE 166 1
ACTIVE 167 1 ACTIVE 168 1 ACTIVE 169 1 ACTIVE 170 1 ACTIVE

已选择18行。

SQL>

select V$SESSION.sid,v$session.SERIAL#,v$process.spid,

rtrim(object_type) object_type,rtrim(owner) || '.' || object_name object_name,

decode(lmode, 0, 'None',

1, 'Null',

2, 'Row-S',

3, 'Row-X',

4, 'Share',

5, 'S/Row-X',

6, 'Exclusive', 'Unknown') LockMode,

decode(request, 0, 'None',

1, 'Null',

2, 'Row-S',

3, 'Row-X',

4, 'Share',

5, 'S/Row-X',

6, 'Exclusive', 'Unknown') RequestMode

,ctime, block b,

v$session.username,MACHINE,MODULE,ACTION,

decode(A.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 Invalida-tion',

'LS', 'Log Start or Switch',

'RW', 'Row Wait',

'SQ', 'Sequence Number',

'TE', 'Extend Table',

'TT', 'Temp Table',

'Unknown') LockType

from (SELECT * FROM V$LOCK) A, all_objects,V$SESSION,v$process

where A.sid > 6

and object_name<>'OBJ$'

and A.id1 = all_objects.object_id

and A.sid=v$session.sid

and v$process.addr=v$session.paddr;

同样也是通过写sql从数据字典里查出来。

// SELECT-SQL1

// 功能:检查被加锁的对象

//select obj.OWNER||'.'||obj.OBJECT_NAME as OBJ_NAME, // 对象名称(已经被锁住)

// obj.SUBOBJECT_NAME as SUBOBJ_NAME, // 子对象名称(已经被锁住)

// obj.OBJECT_ID as OBJ_ID, // 对象ID

// obj.OBJECT_TYPE as OBJ_TYPE, // 对象类型

// lock_obj.SESSION_ID as SESSION_ID, // 会话SESSION_ID

// lock_obj.ORACLE_USERNAME as ORA_USERNAME, // ORACLE系统用户名称

// lock_obj.OS_USER_NAME as OS_USERNAME, // 操作系统用户名称

// lock_obj.PROCESS as PROCESS // 进程编号

//from

// ( select * from all_objects where object_id in (select object_id from v$locked_object)) obj,

// v$locked_object lock_obj

//where obj.object_id=lock_obj.object_id;

//// SELECT-SQL2

//// 功能:检查被加锁的对象以及加锁的会话信息

//// 如果需要手工解除锁,请对照要解锁的对象,记下SESSION_ID,SERIAL#

//// 项,然后运行下面的ALTER-SQL1

//select LOCK_INFO.OWNER||'.'||LOCK_INFO.OBJ_NAME as OBJ_NAME, // 对象名称(已经被锁住)

// LOCK_INFO.SUBOBJ_NAME as SUBOBJ_NAME, // 子对象名称(已经被锁住)

// SESS_INFO.MACHINE as MACHINE, // 机器名称

// LOCK_INFO.SESSION_ID as SESSION_ID, // 会话SESSION_ID

// SESS_INFO.SERIAL# as SERIAL#, // 会话SERIAL#

// LOCK_INFO.ORA_USERNAME as ORA_USERNAME, // ORACLE系统用户名称

// LOCK_INFO.OS_USERNAME as OS_USERNAME, // 操作系统用户名称

// LOCK_INFO.PROCESS as PROCESS, // 进程编号

// LOCK_INFO.OBJ_ID as OBJ_ID, // 对象ID

// LOCK_INFO.OBJ_TYPE as OBJ_TYPE, // 对象类型

// SESS_INFO.LOGON_TIME as LOGON_TIME, // 登录时间

// SESS_INFO.PROGRAM as PROGRAM, // 程序名称

// SESS_INFO.STATUS as STATUS, // 会话状态

// SESS_INFO.LOCKWAIT as LOCKWAIT, // 等待锁

// SESS_INFO.ACTION as ACTION, // 动作

// SESS_INFO.CLIENT_INFO as CLIENT_INFO // 客户信息

//

//from

// (

// select obj.OWNER as OWNER,

// obj.OBJECT_NAME as OBJ_NAME,

// obj.SUBOBJECT_NAME as SUBOBJ_NAME,

// obj.OBJECT_ID as OBJ_ID,

// obj.OBJECT_TYPE as OBJ_TYPE,

// lock_obj.SESSION_ID as SESSION_ID,

// lock_obj.ORACLE_USERNAME as ORA_USERNAME,

// lock_obj.OS_USER_NAME as OS_USERNAME,

// lock_obj.PROCESS as PROCESS

// from

// ( select * from all_objects where object_id in (select object_id from v$locked_object)) obj,

// v$locked_object lock_obj

// where obj.object_id=lock_obj.object_id

// ) LOCK_INFO,

// (

// select SID,

// SERIAL#,

// LOCKWAIT,

// STATUS,

// PROGRAM,

// ACTION,

// CLIENT_INFO,

// LOGON_TIME,

// MACHINE

// from v$session

// ) SESS_INFO

//where LOCK_INFO.SESSION_ID=SESS_INFO.SID ;

//// 看清楚了 下面就可以 杀死它了。

// ALTER-SQL1

// 功能:杀死会话(SESSION_ID,SERIAL#),可以手工解除锁

// 请手工修改SESSION_ID,SERIAL#为相应值

// 注意:本功能慎重使用,有一定的破坏性,该SQL可以断开客户机和服务器的连接

//ALTER SYSTEM KILL SESSION 'SESSION_ID,SERIAL#';