本文介绍了执行闪回事务查询所需的关键步骤，包括确保数据库兼容性和启用补充日志。
（378）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
答案：（C、D）
解析：
《Advanced Application Developer's Guide》 12.2.2
为了闪回事务查询，要求：
1. COMPATIBLE >= 10.0
2. 开启补充日志：ALTER DATABASE ADD SUPPLEMENTAL LOG DATA
来自 “ ITPUB博客 ” ，链接：http://blog.itpub.net/17013648/viewspace-1284284/，如需转载，请注明出处，否则将追究法律责任。
转载于:http://blog.itpub.net/17013648/viewspace-1284284/
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