多选题What methods of point-in-time recovery are available？（）AChange-basedBCancel-basedCTime-basedDSequence number-basedETransaction number-based
多选题
What methods of point-in-time recovery are available？（）
A
Change-based
B
Cancel-based
C
Time-based
D
Sequence number-based
E
Transaction number-based
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