单选题You executed the following query in your database： FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output？（）Athe time when the last flashback operation in your database was performedBthe time when the first flashback operation in your database was performedCa list of flashback operations performed in your database using SCN and timeDthe approximate time and the lowest system change number （SCN） to which you can flash back your database
单选题
You executed the following query in your database： FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output？（）
A
the time when the last flashback operation in your database was performed
B
the time when the first flashback operation in your database was performed
C
a list of flashback operations performed in your database using SCN and time
D
the approximate time and the lowest system change number （SCN） to which you can flash back your database
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