文档解释ORA-13509:errorencounteredduringupdatestoaAWRtableCause:AnupdateerroroccurredduringOCIoperationduetoanunderlyingerror.Action:CheckassociatedOCIerror.Correct...

文档解释ORA-13529:ErroroccurredwhenflushingAWRtablegroupCause:Anerroroccurredduringtheflushingofatablegroup.Becauseoftheerrorinthegroup,weareunabletoflushthistable....

文档解释ORA-13719:ImportedAWRsnapshotsarefromadatabasewithanincompatiblecharacterset.Cause:ADDManalysiswasattemptedonimportedAutomaticWorkloadRepository(AWR)snapsho...

文档解释ORA-13531:SQLTextwaspurgedfromAWRbeforetheoperationcompletedCause:ASQLwaspurgedfromAWRbeforetheoperationcompleted.Action:Retrytheoperation.ORA-13531是Oracle数...

文档解释ORA-13516:AWROperationfailed:stringCause:TheoperationfailedbecauseAWRisnotavailable.Thepossiblecausesare:AWRschemanotyetcreated;AWRnotenabled;AWRschemanotin...

1、进入数据库 sqlplus/assysdba2、查看用户 showparameterdb_name3、开始压测后执行execDBMS_WORKLOAD_REPOSITORY.CREATE_SNAPSHOT();  4、结束压测后执行execDBMS_WORKLOAD_REPO...

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Quartz2D绘图引擎，核心对象就是上下文 画线的一个自定义UILable-(void)drawRect:(CGRect)rect{  [super drawRect:rect];   //1.获得上下文   CGCo...

AWR报告中ParseCPUtoParseElapsd%的理解 原文自：http://dbua.iteye.com/blog/827243 ParseCPUtoParseElapsd%是指sql语句的CPU时间与总体解析时间的比率,SQL总体解析时间包括CPU时间和wait时间，这个比率过低说明SQ...

1、对于数据库运行的业务不太了解，那么awr性能报告中最需要关注的是Top5TimedForegroundEvents和TimeModelStatistics两个部分...