Oracle OCP IZ0-053 Q598(CONTROL_FILE_RECORD_KEEP_TIME)

598.The CONTROL_FILE_RECORD_KEEP_TIME initialization parameter should be set to what value?
(Choose all that apply.)
A. The initialization parameter should be set to 0 when the RMAN repository is being used.
B. The initialization parameter should be set to greater than 0 with the RMAN repository utilizing the
recovery catalog only.
C. The initialization parameter should be set to greater than 0 with the RMAN repository utilizing the
control file or the recovery catalog.
D. The initialization parameter should be set to 0 with the RMAN repository utilizing the control file or the
recovery catalog.
E. The initialization parameter should never be set to 0 if you are using RMAN.
Answer: CE

引數與retention policy有關，反正就是不能為0

http://blog.csdn.net/rlhua/article/details/12308231
http://blog.csdn.net/rlhua/article/details/12361557

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