Enterprise Edition :
Everyday : RMAN incremental backup + archivelogs and delete archivelogs from archive destination.
3 days : Cumulative backup + archivelogs and delete archivelogs from archive destination.
Weekly : Complete backup + archivelogs and delete the archivelogs from archive destination.
Note : Any backup strategy that we design for the customers has to minimise the down time.
Standard Edition :
Everyday / for every 12 hours : Take the backup of archivelogs and delete the archives.
Note : If we have the licence of Standard Edition, we cannot take RMAN incremental backups.
3 days / weekly : Full backup + archivelogs and delete the archives.