#deat

ORA-10707: Simulate process death for instance registration

文档解释ORA-10707:SimulateprocessdeathforinstanceregistrationCause:Whenenabled,processcommitssuicidetotestinstanceregistrationrecoverycode.Action:Levelindicateswher...

ORA-31675: worker process interrupt for unexpected death of master process

文档解释ORA-31675:workerprocessinterruptforunexpecteddeathofmasterprocessCause:Aworkerprocesswasrequestedtocleanupandexit(signaledbyPMON,doingcleanupbecausethemaste...

ORA-41023: death time not specified

文档解释ORA-41023:deathtimenotspecifiedCause:Anattempttorecoverafterinstancedeathwasmade,whichfailedbecausethedeathtimespecifiedwasnull.Action:Checkthedeathtime,and...

常见的几个js疑难点,match,charAt,charCodeAt,map,search

    JavaScript match()方法    定义和用法    match()方法可在字符串内检索指定的值,或找到一个或多个正则表达式的匹配。   &...

INSERT ... ON DUPLICATE KEY UPDATE产生death lock死锁原理

编辑    我们在实际业务场景中,经常会有一个这样的需求,插入某条记录,如果已经存在了则更新它如果更新日期或者某些列上的累加操作等,我们肯定会想到使用INSERT...ONDUPLICATEKEYUPDATE语句,一条语句就搞定了查询是否存在和插入或者更新这几个步骤,但是使用这条...