QUESTION
NO: 30
Which are the prerequisites for performing flashback transactions on your
database? (Choose all that apply.)
A. Undo retention guarantee for the database must be configured.
B. Supplemental log must be enabled for the primary key.
C. Supplemental log must be enabled.
D. Execute permission on the DBMS_FLASHBACK package must be granted to the
user.
Answer: B,C,D
Explanation:
闪回事务查询需要开启附加日志模式。
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/29555029/viewspace-1601897/ ，如需转载，请注明出处，否则将追究法律责任。
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