网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)

Youissuethefollowingstatement:SQL>SELECTFIRSTNAME,LASTNAMEFROMHR.EMPLOYEE;Youreceivethefollowingerror:01578:ORACLEdatablockcorrupted(file6,block54)ORA-01110:datafile6:’u01/oracle/oradata/data1.dbf’Howwillyouresolvethisproblemofdatablockcorruptionbyreducingthemeantimetorecover(MTTR)?()

A.byusingtheDBMS_REPAIRpackage

B.byusingtheDBVERIFYutility

C.byusingBlockMediaRecovery

D.byissuingtheANALYZETABLEHR.EMPLOYEESVALIDATESTRUCTUREcommand


参考答案

更多 “ Youissuethefollowingstatement:SQLSELECTFIRSTNAME,LASTNAMEFROMHR.EMPLOYEE;Youreceivethefollowingerror:01578:ORACLEdatablockcorrupted(file6,block54)ORA-01110:datafile6:’u01/oracle/oradata/data1.dbf’Howwillyouresolvethisproblemofdatablockcorruptionbyreducingthemeantimetorecover(MTTR)?()A.byusingtheDBMS_REPAIRpackageB.byusingtheDBVERIFYutilityC.byusingBlockMediaRecoveryD.byissuingtheANALYZETABLEHR.EMPLOYEESVALIDATESTRUCTUREcommand ” 相关考题
考题 YousetthevalueoftheSGA_TARGETinitializationparameterto1GtoenableOracletoautomaticallyresizemostofthememorycomponentsaccordingtothecurrentworkloadinthedatabase.Youissuethefollowingstatement:SQLSELECTname,value,isdefault2FROMv$parameter3WHEREnameLIKE’%size%’;TheoutputofthisstatementdisplaysthattheDB_CACHE_SIZE,SHARED_POOL_SIZE,LARGE_POOL_SIZE,andJAVA_POOL_SIZEinitializationparameterscontainazerovalue.Whatdoesthisimply?()A.TheSGA_TARGETinitializationparametercannotbesettoavaluelessthan1GB.TheSGA_TARGETinitializationparametercannotbesettoavaluegreaterthan1GC.TheMemoryAdvisoroftheOracleEnterpriseManager10gcannotbeusedtoobtainadviceontheimportantmemorycomponentsoftheSGAD.ThevaluesoftheDB_CACHE_SIZE,SHARED_POOL_SIZE,LARGE_POOL_SIZE,andJAVA_POOL_SIZEinitializationparameterscannotbesetmanually.E.NominimumlimitsareimposedontheDB_CACHE_SIZE,SHARED_POOL_SIZE,LARGE_POOL_SIZE,andJAVA_POOL_SIZEinitializationparameters.F.TheAutomaticSharedMemoryManagementfeaturecannotbedisabledunlessyouspecifyvaluesfortheDB_CACHE_SIZE,SHARED_POOL_SIZE,LARGE_POOL_SIZE,andJAVA_POOL_SIZEinitializationparametersintheinitializationparameterfile.

考题 YouaremaintainingyourdatabaseinOracle10g.Youwanttostoretheinformationaboutthebackupofthedatabaseinthecontrolfile.Youissuethefollowingstatement:SQLALTERSYSTEMSETCONTROL_FILE_RECORD_KEEP_TIME=400;Whatistheoutcomeofthisstatement?()A.Thestatementwillnotexecutesuccessfully.B.Thestatementwillexecutesuccessfully,andthebackupsmetadatawillbemaintainedinthecontrolfilefor400daysC.Thestatementwillexecutesuccessfully,andthebackupsmetadatawillbemaintainedintherecoverycatalogfor400days.D.Backupswillbedeletedfromthemediaafter400days.

考题 YouuseMicrosoft.NETFrameworkv3.5tocreateaMicrosoftASP.NETapplicationforCertkiller.com.Thecodesegmentbelowiswrittentocreateaclient-scriptThisnewlycreatedscriptwillmakeuseofASP.NETAJAX.ThescriptwillalsoupdatethetextofalltheLabelcontrolsinthewebform.IthascometoyourattentionthattheLabelcontrolsarenotupdatedwhentheclientscriptfunctionistested.However,youreceivethe’null’isnullornotanobjectJavaScripterrormessageinthebrowser.Whatshouldyoudo?()

考题 通过 SQL,在表 Actor 中选择 FirstName 等于 Jim 而 LastName 等于 Carter 的所有记录的表述正确的是()。A.SELECT * FROM Actor WHERE FirstName LIKE 'Jim' AND LastName LIKE 'Carter'B.SELECT FirstName='Jim', LastName='Carter' FROM ActorC.SELECT * FROM Actor WHERE FirstName='Jim' AND LastName='Carter'D.SELECT * FROM Actor WHERE FirstName='Jim' OR LastName='Carter'