OCP-1Z0-053-V12.02-392题

392.To clean up old records that are in a Flashback Data Archive and are past the retention period, what

must the DBA do?

A. TRUNCATE the archive table.

B. DROP the Flashback Data Archive.

C. Nothing; expired rows are automatically removed.

D. Nothing; expired rows are moved to an archive table.

E. Delete entries from the archive where the metadata date retained is greater than the retention period.

Answer: C

答案解析：

参考：闪回数据归档：http://blog.csdn.net/rlhua/article/details/12221269

 

通常会在保留时间到期后的第一天执行自动清除。