A. An SCN is never used to perform a Flashback Table recovery.
B. If a significant number of changes have been made to the table,row movement must be enabled.
C. The tablespace must be offline before performing a Flashback Table recovery.
D. Flashback Table recovery is completely dependent on the availability of undo data in the undo tablespace.
答案：（D）
解析：
A（X），SCN肯定会用到，即使没显式使用，Oracle自己也会使用
B（X），任何情况下都需要开启行移动