（单选题）
In which scenario， will you issue the following command？（） RMAN> REPORT NEED BACKUP DAYS 7；
A to configure RMAN to maintain backup information in the RMAN repository for seven days
B to configure RMAN to maintain backup information in the control file for at least seven days
C to display the list of files that have not been backed up for the last seven days
D to display the list of files that must be backed up within seven days
正确答案
答案解析
略
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