A developer calls and reports that he accidentally dropped an important lookup table from a
production database. He needs the table to be recovered. What action would you take?
A. Initiate an incomplete recovery operation using RMAN.
B. Copy the table from a development database.
C. Advise the user to rekey the data.
D. Perform a Flashback Drop operation.
E. Perform a Flashback Recovery operation.
A Flashback Drop option would allow you to restore the table from the Recycle Bin.
Although A,B,and C may all be valid recovery options,they are much less desirable than
Flashback Drop.E is an invalid option altogether.
原文：http://www.cnblogs.com/Babylon/p/7794549.html