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Another DBA issues a shutdown abort command on a database on which you were running an online backup. What will happen when you try to restart the database？（）  
A: Oracle will automatically take the datafile out of hot backup mode，generate a warning message，and then open the database.
B: Oracle will automatically take the datafile out of hot backup mode and then open the database.
C: Oracle will generate an error when trying to open the database，indicating that a datafile is in hot backup mode.You will need to correct this error before you can open the database.
D: The database will open with the file in hot backup mode. You can restart the backup at any time.
E: The datafile in hot backup mode will be corrupted and you will have to recover it.

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出自：Oracle认证

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