how to manual drop flashback_database logfile !
a lot of flashback_database_logfile have seen in db_revoery_file_dest,
so there is two question .
1.does it necessary set archivelog dest in db_revoery_file_dest , and if it is ,why ?
2.does it necessary set db in archive log mode , and if it is ,why ?
3.if set flashback_database on , how to manual drop flashback_database logfile?