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OCP-052考试题库汇总(19)-CUUG内部解答版
WhichthreeeventsalwaysresultinawriterequestmadetotheLGWRprocess?A)afterundoisappliedbyPMONduringproce***ecoveryB)whendirtybuffersarefoundduringtheprocessingofacheckpointC)whenthepasswordfileisupdatedD
分类:其他好文   时间:2019-08-05 11:10:41    阅读次数:170
北京理科
\begin{frame}{2019年北京高考} \begin{exampleblock}{2019年北京理科高考试题}数学中有许多形状优美、寓意美好的曲线,曲线$C:x^2+y^2=1+|x|y$就是其中之一(如图).给出下列三个结论:\begin{enumerate}%[align=left,l ...
分类:其他好文   时间:2019-08-03 14:23:39    阅读次数:80
OCP-052考试题库汇总(18)-CUUG内部解答版
WhichtwoeventsalwaysrequesttheLGWRtowrite?A)WhenDBWnwritesdirtybuffers.B)Whenalogswitchoccurs.C)Whenacheckpointoccurs.D)WhenLGWRisnotifiedbyaserverprocessthatperformsaCOMMITorROLLBACK.E)WhenPMONrestar
分类:其他好文   时间:2019-08-02 14:47:05    阅读次数:98
OCP-052考试题库汇总(17)-CUUG内部解答版
WhichfouraretrueabouttheAutomaticWorkloadRepository(AWR)?A)AWRdatacanberetainedforamonth.B)Itincludesstatisticsonthenumberofcolumnsineachview.C)AutomaticAWRsnapshotscanbewrittenonceperhour.D)Itinclude
分类:其他好文   时间:2019-08-02 12:48:53    阅读次数:80
OCP-052考试题库汇总(15)-CUUG内部解答版
WhichtwoaretrueaboutAWRsnapshots?A)TheyarestoredintheSYSAUXtablespace.B)Theyarealwayscreatedautomatically.C)Theycanberetainedforever.D)TheycanbemodifiedbyusingDMLs.E)TheyarenotgeneratedifSTATISTICS_LE
分类:其他好文   时间:2019-08-01 11:50:17    阅读次数:113
OCP-052考试题库汇总(13)-CUUG内部解答版
WhichthreearetrueabouttheAutomaticWorkloadRepository(AWR)?A)AWRdataisstoredintheSYSTEMtablespace.B)Bydefault,AWRsnapshotsaretakenevery60minutes.C)Itisthefoundationfortheself-managinginfrastructure.D)T
分类:其他好文   时间:2019-07-31 11:09:27    阅读次数:87
OCP-052考试题库汇总(11)-CUUG内部解答版
WhichtwoaretrueaboutOptimizerStatistics?A)TheyaregatheredbytheManageabilityMonitor(MMON)backgroundprocess.B)TheycanbegatheredbyexecutingthePL/SQLproceduresintheDBMS_STATESpackage.C)Theydonotpersistacr
分类:其他好文   时间:2019-07-30 11:08:00    阅读次数:118
数论考试题(b) 求约数的约数的最大个数
题意:求1~n范围里约数的约数的个数加起来最多的是哪个数 及其总数 题解: ...
分类:其他好文   时间:2019-07-29 21:35:23    阅读次数:102
OCP-052考试题库汇总(9)-CUUG内部解答版
WhichthreearetrueaboutOptimizerStatistics?A)TheycanbegatheredmanuallyB)TheyareautomaticallyupdatedbyDMLstatementsC)TheycontaintheexecutionplanforeachexecutedSQLstatement.D)Theyincludethenumberofrowsin
分类:其他好文   时间:2019-07-29 11:44:54    阅读次数:89
OCP-052考试题库汇总(10)-CUUG内部解答版
WhichtwoaretrueaboutOracle‘sOptimizerstatistics?A)Theyareautomaticallyupdatedwhenddlstatementsexecute.B)Theycanbecalculatedexactly.C)Theycanbegatheredonexternaltables.D)Theyareautomaticallyupdated
分类:其他好文   时间:2019-07-29 11:32:09    阅读次数:99
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