數(shù)據(jù)庫鎖定后怎么解鎖 oracle數(shù)據(jù)庫被鎖了怎么辦?
oracle數(shù)據(jù)庫被鎖了怎么辦?用戶被鎖了?FAILED_LOGIN_ATTEMPTS參數(shù)默認(rèn)是10,即:用戶連續(xù)輸入10次錯誤密碼,用戶會被鎖住;可以使用其他擁有DBA權(quán)限的用戶進(jìn)行解鎖;alter
oracle數(shù)據(jù)庫被鎖了怎么辦?
用戶被鎖了?
FAILED_LOGIN_ATTEMPTS參數(shù)默認(rèn)是10,即:用戶連續(xù)輸入10次錯誤密碼,用戶會被鎖??;
可以使用其他擁有DBA權(quán)限的用戶進(jìn)行解鎖;
alter user username account unlock
如果是數(shù)據(jù)庫內(nèi)部出現(xiàn)死鎖或阻塞會話,可以先查出阻塞的會話,
select * from dba_waiters
在殺掉阻塞的會話
alter system kill session "sid,serial#"
測試環(huán)境,可以直接重啟數(shù)據(jù)庫!
數(shù)據(jù)庫中某條數(shù)據(jù)被鎖了。如何解鎖?
1、查看數(shù)據(jù)庫鎖,診斷鎖的來源及類型:
select object_id,session_id,locked_mode from v$locked_object
或者用以下命令:
select b.owner,b.object_name,l.session_id,l.locked_mode
from v$locked_object l, dba_objects b
where b.object_id=l.object_id 2、找出數(shù)據(jù)庫的serial#,以備殺死:
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 3、殺死該session
alter system kill session "sid,serial#"
記得以上是用SYS或者SYSTEM賬戶進(jìn)入,要不沒權(quán)限。