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 performedB.the time when the first flashback operation in your database was performedC.a list of flashback operations performed in your database using SCN and timeD.the approximate time and the lowest system change number （SCN） to which you can flash back your database

单项选择题

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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