awr主题的文章列表，还有awr的技术要点_第1页

ORA-13509: error encountered during updates to a AWR table

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

IT技术学习 ·2023-07-26

ORA-13529: Error occurred when flushing AWR table group

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

IT技术学习 ·2023-07-22

ORA-13719: Imported AWR snapshots are from a database with an incompatible character set.

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

IT技术学习 ·2023-07-13

ORA-13531: SQL Text was purged from AWR before the operation completed

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

IT技术学习 ·2023-07-11

ORA-13516: AWR Operation failed: string

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

IT技术学习 ·2023-07-08

oracle中如何生成awr【性能调优】报告

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...

代码星球 ·2021-02-20

iOS-layoutSubvies和drawRect何时调用

...

代码星球 ·2021-01-23

drawRect画线和使用CGContext

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...

代码星球 ·2020-09-10

AWR报告中Parse CPU to Parse Elapsd%的理解

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...

代码星球 ·2020-08-14

oracle中awr性能报告阅读笔记

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...

代码星球 ·2020-05-23