网友您好, 请在下方输入框内输入要搜索的题目:
Whatdoestheoutputonthisreportindicate?()RMAN>reportneedbackup;RMANretentionpolicywillbeappliedtothecommandRMANretentionpolicyissettoredundancy1Reportoffileswithlessthan1redundantbackupsFilebkpsName50C:\ORACLE\ORADATA\ORCL\MY_DATA_01.DBF
A.Themy_data_01.dbfdatafileiscorruptedandneedstoberestored.
B.Themy_data_01.dbfdatafilehasnotyetbeenbackedup.Thisreportdoesnotimplythatthedatainthedatafilecannotberecovered.
C.Themy_data_01.dbfdatafilehasnotyetbeenbackedup.Thisreportimpliesthatthedatainthedatafilecannotberecovered.
D.Themy_data_01.dbfdatafilenolongermeetstheretentioncriteriaforbackups.
E.Datafile5ismissing.
参考答案