choose one
You enable Flashback Data Archive for a table for which you
Want to track and save all transactions for four years. After some time, the
Requirement changes for keeping transactions from four to two years.
You execute the following command to change the requirement:
SQL> ALTER FLASHBACK ARCHIVE fdal MODIFY RETENTION 2 YEAR;
What is the outcome?
A.All historical data older than two years, if any, is purged from the flashback正确答案A
Archive FDA1. B.An error is returned because the retention period cannot be reduced. C.All the flashback data archives are purged and the subsequently created
Flashback archives are maintained for two years. D.All historical data older than two years, if any, is archived to flashback logs and
The flashback archive is set to new retention time.
