单选题After a number of days set by the parameter CONTROL_FILE_RECORD_KEEP_TIME， the information in the control file is overwritten by RMAN. What is this parameter’s default value？（）A1 dayB5 daysC7 daysD31 days
单选题
After a number of days set by the parameter CONTROL_FILE_RECORD_KEEP_TIME， the information in the control file is overwritten by RMAN. What is this parameter’s default value？（）
A
1 day
B
5 days
C
7 days
D
31 days
参考解析
解析：
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