多选题Which two statements are true regarding the database in ARCHIVELOG mode？（）AYou have to shut down the database to perform the backups.BArchiving information is written to the data files and redo log files.CYou can perform complete database backups without closing the database.DOnline redo log files have to be multiplexed before putting the database in ARCHIVELOG mode.EAll the previous database backups become invalid after you configure the database to ARCHIVELOG mode.
多选题
Which two statements are true regarding the database in ARCHIVELOG mode？（）
A
You have to shut down the database to perform the backups.
B
Archiving information is written to the data files and redo log files.
C
You can perform complete database backups without closing the database.
D
Online redo log files have to be multiplexed before putting the database in ARCHIVELOG mode.
E
All the previous database backups become invalid after you configure the database to ARCHIVELOG mode.
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