
BRRECOVER first remounts - that is, closes and again mounts - the database to refresh the views V$DATAFILE, V$RECOVER_FILE, and V$RECOVERY_STATUS.
BRRECOVER checks whether there are any data files not online. If so, it recommends to set them online.
BRRECOVER displays a list of the redo log files to be automatically applied by Oracle during the flashback database.
Some offline redo log files might be present on multiple media sources. For example, a file might be present on disk and on tape. BRRECOVER normally uses the most accessible version of the file, unless you specify otherwise. In this example, it would use the disk version of the file.
You use this procedure when using BRRECOVER to perform flashback database during: