Which two are the prerequisites to enable Flashback Data Archive?（） (Choose two.)
- 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).
正确答案:B,D
答案解析:有
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