oracle锁表的解决方法

王亮

1、生成Kill Session语句

select 'alter system kill session ''' || SID ||',' || SERIAL# || ''';' from

(

select distinct a.sid, a.Serial#, status, machine, LOCKWAIT, logon_time

  from v$session a, v$locked_object b

where (a.status = 'ACTIVE' or a.status = 'INACTIVE')

   and a.sid = b.session_id

   and b.ORACLE_USERNAME='TEST'--加上用户名是避免把其他系统的会话也关闭，以免伤及无辜

)

2、批量执行第一步生成的语句

alter system kill session 'sid,serial#';

##例：alter system kill session '4357,21927';

3、查询oracle用户名，机器名，锁表对象

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# ;

/*或者

select s.SID, s.OSUSER, p.spid as OSPID, s.MACHINE, s.TERMINAL, s.PROGRAM

  from v$session s, v$process p

where s.sid = 213   ##session_id

   and s.paddr = p.addr;

*/

4、查询是执行何sql语句导致锁表的

select b.sql_text

  from v$session a, v$sql b

where a.sid = 6 --session_id

   and a.SQL_ADDRESS = b.ADDRESS(+);

/*--或者

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#;

*/