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标签：flash   span   site   mat   tab   base   ace   arch   database   

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).

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标签：flash   span   site   mat   tab   base   ace   arch   database   

原文地址：http://www.cnblogs.com/Babylon/p/7844371.html