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You are using replication and the binary log files on your master server consume a lot of disk space. Which two steps should you perform to safely remove some of the older binary log files?（）
A:Use the command PURGE BINARY LOGS and specify a binary log file name or a date and time to remove unused files
B:Execute the PURGE BINARY LOGE NOT USED command
C:Remove all of the binary log files that have a modification date earlier than today
D:Edit the .index file to remove the files you want to delete
E:Ensure that none of the attached slaves are using any of the binary logs you want to delete

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出自：Oracle认证

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