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OCP读书笔记(26) - 题库(ExamF)
501.Note the output of the following query;SQL> SELECT flashback_archieve_name, status FROM dba_flashback_archieve;FLASHBACK_ARCHIEVE_NAME STATUSFLA1Y...
分类:其他好文   时间:2014-08-14 23:28:16    阅读次数:527
OCP读书笔记(24) - 题库(ExamD)
301.Which command is used to configure RMAN to perform a compressed backup for every backupexecuted?A. BACKUP AS COMPRESSED BACKUPSET DATABASEB. BACKU...
分类:其他好文   时间:2014-08-14 23:22:36    阅读次数:393
【12C考题精解】OCP 1z0-060 QUESTION 8: Recovery of a Tablespace in the CDB
QUESTION8 Yourmultitenantcontainer(CDB)containingthreepluggabledatabases(PDBs)isrunninginARCHIVELOGmode.YoufindthattheSYSAUXtablespaceiscorruptedintherootcontainer.Thestepstorecoverthetablespaceareasfollows:1.MounttheCDB.2.CloseallthePDBs.3.Openthedataba..
分类:数据库   时间:2014-08-13 03:50:16    阅读次数:387
【12C考题精解】OCP 1z0-060 QUESTION 3: Managing the SYSAUX Tablespace
QUESTION3Whichtwostatementsaretrueabouttheuseoftheprocedureslistedinthev$sysaux_occupants.move_procedurecolumn?A.TheproceduremaybeusedforsomecomponentstorelocatecomponentdatatotheSYSAUXtablespacefromitscurrenttablespace.B.Theproceduremaybeusedforsomecompone..
分类:其他好文   时间:2014-08-07 19:22:41    阅读次数:295
OCP读书笔记(22) - 题库(ExamB)
101.Identify two situations in which you can use Data Recovery Advisor for recovery. (Choose two.)A. The user has dropped an important table that need...
分类:其他好文   时间:2014-08-06 22:00:42    阅读次数:721
OCP读书笔记(23) - 题库(ExamC)
200.Which operation requires that you create an auxiliary instance manually before executing theoperation? (Choose all that apply.)A. Backup-based dat...
分类:其他好文   时间:2014-08-06 21:51:22    阅读次数:2954
OCP读书笔记(21) - 题库(ExamA)
3.Your database is in ARCHIVELOG mode. You have two online redo log groups, each of which contains one redo member. When you attempt to start the data...
分类:其他好文   时间:2014-08-06 21:48:22    阅读次数:610
【Q&A】12C OCP 1z0-060 QUESTION 1: About Managing Temporary Tablespaces in a CDB
QUESTION1Yourmultitenantcontainer(CDB)containstwopluggabledatabases(PDB),HR_PDBandACCOUNTS_PDB,bothofwhichusetheCDBtablespace.Thetempfileiscalledtemp01.tmp.AuserissuesaqueryonatableononeofthePDBsandreceivesthefollowingerror:ERRORatline1:ORA-01565:errorinide..
分类:数据库   时间:2014-08-05 23:13:11    阅读次数:727
java笔记--适配器模式的运用
适配器模式的运用--如果朋友您想转载本文章请注明转载地址"http://www.cnblogs.com/XHJT/p/3884785.html"谢谢--主要应用: 可以在符合OCP原则(开笔原则)的基础上,为类增加新的功能。 在现有功能上添加新的功能时无须修改原有功能代码。主要角色: 目标角色:就是...
分类:编程语言   时间:2014-08-01 15:23:31    阅读次数:239
Python设计模式——设计原则
1.单一职责原则:每个类都只有一个职责,修改一个类的理由只有一个2.开放-封闭远程(OCP):开放是指可拓展性好,封闭是指一旦一个类写好了,就尽量不要修改里面的代码,通过拓展(继承,重写等)来使旧的类满足新的需求,而不是修改一个类里面的代码。3.依赖倒转原则:高层模块不应该依赖底层模块,两个都应该依...
分类:编程语言   时间:2014-07-30 23:14:45    阅读次数:258
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