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Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error， you decided to perform an incomplete recovery. Which two tasks would you be required to perform in the recovery process？（）
A: open the database with the RESTRICTED option
B: open the database with the RESETLOGS option
C: recover to the required SCN only that data file in which the error occurred
D: recover all the data files to the same system change number （SCN）

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出自：Oracle认证

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