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给某一条记录上锁
select * from ims_ot_user t where t.user_login_name='weihu' for update
查看数据库中的锁
SELECT SID, SERIAL# FROM V$SESSION
WHERE SID IN (
SELECT SID FROM V$LOCK
WHERE TYPE IN ('TM','TX')
)
查询出所以被锁的会话:
SELECT OBJECT_ID,SESSION_ID,SERIAL#,
ORACLE_USERNAME,OS_USER_NAME,S.PROCESS
FROM V$LOCKED_OBJECT A,
V$SESSION S WHERE A.SESSION_ID=S.SID
解锁
alter system kill session '133, 27668';
查看数据库中所有的锁
SELECT a.object_id, a.session_id, b.object_name
FROM v$locked_object a, dba_objects b
WHERE a.object_id = b.object_id
查看数据库中所有的锁的详细信息
select t2.username, t2.sid, t2.serial#, t2.logon_time,a.SQL_TEXT
from v$locked_object t1, v$session t2, v$sqlarea a
where t1.session_id = t2.sid
and t2.prev_sql_addr = a.address
order by t2.logon_time;
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