If your database can regularly be taken offline without impacting your business during some quiet period, you can implement a strategy utilizing offline backups captured during this downtime.
If your database is required to be online and available at all times, you must either implement a strategy utilizing online backups captured regularly during some lower‑volume transaction processing period, or a warm standby server or SDE‑based strategy.
Where online or offline backups are used, the volume of updating transactions and your recovery requirements determine the frequency of your database and transaction journal backups.