多选题What are the prerequisites for performing flashback transactions? （）(Choose all that apply)ASupplemental log must be enabledBSupplemental log must be enabled for the primary keyCUndo retention guarantee for the database must be configuredD”EXECUTE “ pe
题目
多选题
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 be configured
D
”EXECUTE “ permission on the DBMS_FLASHBACK package must be granted to the user
