单选题Which statement is true about a whole consistent database backup on a database running in ARCHIVELOGmode（）A The backup will consist of used data blocks only.B The database must be shut down to accomplish the backup.C The backup can be accomplished without shutting down the database.D The backup will contain all database files that have never been backed up
单选题
Which statement is true about a whole consistent database backup on a database running in ARCHIVELOGmode（）
A
The backup will consist of used data blocks only.
B
The database must be shut down to accomplish the backup.
C
The backup can be accomplished without shutting down the database.
D
The backup will contain all database files that have never been backed up
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