Yourdatabaseinstanceisstartedusingtheserverparameterfile(SPFILE).YouexecutedacommandtochangethevalueoftheLOG_BUFFERinitializationparameter:ALTERSYSTEMSETLOG_BUFFER=32MSCOPE=BOTH;Whatwouldbetheoutcomeofthiscommand()
A. ThecommandsucceedsonlyifAutomaticMemoryManagementisnotenabled.
B. Thecommandsucceeds,butyouneedtorestartthedatabaseforchangestotakeeffect.
C. Thecommandreturnsanerrorbecausethesizeoftheredologbuffercannotbechangeddynamically.
D. TheparametervalueischangedanditcomesintoeffectassoonasspacebecomesavailableintheSystemGlobalArea(SGA).
查看答案
物质世界的多样性为人生选择提供了多种可能性的()
A. 主观条件
B. 客观基础
C. 发展道路
D. 现实依据
WhichtwostatementsaretrueregardingthedatabaseinARCHIVELOGmode?()
A. Youhavetoshutdownthedatabasetoperformthebackups.
B. Archivinginformationiswrittentothedatafilesandredologfiles.
C. Youcanperformcompletedatabasebackupswithoutclosingthedatabase.
D. OnlineredologfileshavetobemultiplexedbeforeputtingthedatabaseinARCHIVELOGmode.
E. AllthepreviousdatabasebackupsbecomeinvalidafteryouconfigurethedatabasetoARCHIVELOGmode.
Youneedtorestoresomefilesfromafilesystem.Thefilesystemwasbackedupfromasnapshot.Whichcommandwillcorrectlyrestorethesefiles?()
A. fssnap-i
B. fssnap-r
C. ufsrestore-i
D. snaprestore-i
近代思想家龚自珍说:“自古至今,法无不改,事无不积,事例无不变迁,风气无不移易。”()
A. 世界上存在无物质的运动
B. 运动是物质的存在方式和固有属性
C. 物质是运动的内在动力
D. 物质的唯一特性是客观实在性