单项选择题
You have lost datafile 4 from your database. Which is typically the fastest way to restore your database? （）
A.Restore and recover the datafile. B.Restore and recover the tablespace. C.Restore and recover the database. D.Restore and recover the control file. E.Restore and recover the parameter file.
单项选择题 WhatdoestheSCNrepresent?（）
单项选择题 Whatistheproperproceduretorecoveralosttempfile?（）
单项选择题 Howmanyindividualarchive-logdestinationdirectoriesaresupportedbyOracleDatabase11g?（）
