多选题Which two are the prerequisites to enable Flashback Data Archive？（）ADatabase must be running in archivelog mode.BAutomatic undo management must be enabled.CUndo retention guarantee must be enabled.DThe tablespace on which the Flashback Data Archive is created must be managed with Automatic Segment Space Management （ASSM）.
多选题
Which two are the prerequisites to enable Flashback Data Archive？（）
A
Database must be running in archivelog mode.
B
Automatic undo management must be enabled.
C
Undo retention guarantee must be enabled.
D
The tablespace on which the Flashback Data Archive is created must be managed with Automatic Segment Space Management （ASSM）.
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