You disabled the Flashback Database feature by using the following command:  SQL> ALTER DATABASE FLASHBACK OFF;  What would be the effect of this command on the existing flashback logs?()
A:Flashback logs are not deleted.
B:Flashback logs are deleted automatically.
C:Flashback logs are deleted only if you are using Recovery Manager (RMAN).
D:Flashback logs are deleted only if you are using Oracle Managed Files (OMF).
E:Flashback logs are deleted only if you are using Automatic Storage Management (ASM).
出自:Oracle认证