单项选择题
A. Lists all datafiles created in the last three days that are not backed up.
B. Lists all datafiles not recoverable based on the current retention criteria.
C. Lists all datafiles not backed up in the last three days. The datafile is not recoverable.
D. Lists all datafiles that need to be backed up due to unrecoverable operations.
E. Lists all datafiles not backed up in the last three days. It does not imply that the datafile is not recoverable.
单项选择题 What does the output on this report indicate？（） RMAN> report need backup； RMAN retention policy will be applied to the command RMAN retention policy is set to redundancy 1 Report of files with less than 1 redundant backups File #bkps Name 5 0 C：\ORACLE\ORADATA\ORCL\MY_DATA_01.DBF
单项选择题 What is the impact of the results of the output of the following command？（） RMAN> report unrecoverable database； Report of files that need backup due to unrecoverable operations File Type of Backup Required Name 4 full or incremental C：\ORACLE\ORADATA\ORCL\USERS01.DBF
单项选择题 Whatviewmightyouusetotrytodeterminehowlongaparticularbackupwilltake？（）