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oracle死锁（摘抄）
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https://sqcjy111.iteye.com/blog/1183928
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#‘;
oracle死锁（摘抄）
标签：control 破坏 add ble comm cli alter alt 系统用户
本文系统来源：https://www.cnblogs.com/myxinyang/p/10183649.html
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