In order to perform Flashback Transaction Query operations, which of these steps are required?
(Choose all that apply.)
A. Ensure that database is running with version 10.1 compatibility.
B. Enable Flashback Logging.
C. Enable Supplemental Logging.
D. Ensure that the database is running with version 10.0 compatibility.
E. Ensure that the database is in ARCHIVELOG mode
Version 10.0 compatibility must be set,so option A is incorrect.Option B is incorrect because there is no such thing as Flashback Logging.Option E is incorrect because ARCHIVELOG mode has no effect on Flashback Transaction Query functionality.
原文：http://www.cnblogs.com/Babylon/p/7826469.html