单选题Which statement is true about the loss of system-critical data files in ARCHIVELOG mode？（）AThe data files can be recovered till the last committed transaction.BThe data files can be recovered without shutting down the database.CThe data file is taken offline automatically； the database remains open.DThe data files can be recovered to the time of the most recent backup.
单选题
Which statement is true about the loss of system-critical data files in ARCHIVELOG mode？（）
A
The data files can be recovered till the last committed transaction.
B
The data files can be recovered without shutting down the database.
C
The data file is taken offline automatically； the database remains open.
D
The data files can be recovered to the time of the most recent backup.
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