ocp-416

QUESTION NO: 416
Which two statements regarding the Flashback Table feature are correct? (Choose two.)
A. Flashback Table can be performed on system tables.
B. Flashback Table operation does not shrink the segments.
C. Flashback Table uses log mining to extract SQL_REDO and SQL_UNDO statements.
D. Flashback Table operation acquires exclusive data manipulation language (DML) locks.
Answer: B,D

关于闪回表特性的哪两个语句是正确的？

B.闪回表操作不收缩段。
D.闪回表操作获得排它数据操纵语言（ DML）锁。