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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You need to maintain a record of all transactions on some tables for at least three years. Automatic undo management is enabled for the database. What must you do accomplish this task?()A、 Enable supplemental logging for the database.B、 Specify undo retention guarantee for the databaseC、 Create Flashback Data Archive in the tablespace where the tables are stored.D、 Create Flashback Data Archive and enable Flashback Data Archive for specific tables
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