单项选择题
How is block-change tracking enabled?()
A.With alter database enable block change tracking B.With alter system enable block change tracking C.With an init.ora parameter change D.With an spfile parameter change
单项选择题 Youhavelostdatafile4fromyourdatabase.Whichistypicallythefastestwaytorestoreyourdatabase?()
单项选择题 WhatdoestheSCNrepresent?()
单项选择题 Whatistheproperproceduretorecoveralosttempfile?()