QUESTION 1
What are the prerequisites for performing flashback transactions? (Choose all that apply)
A. Supplemental log must be enabled
B. Supplemental log must be enabled for the primary key
C. Undo retention guarantee for the database must beconfigured
D. ”EXECUTE “ permission on the DBMS_FLASHBACK package must begranted to the user
Answer: ABD
同V13.02版本677题：http://blog.csdn.net/rlhua/article/details/13996769