Is it better to have one database or multiple databases?

Is it better to have multiple databases?

Good reasons to create separate databases would be to support different availability requirements or simplify administration. For example if your databases require very different backup schedules or different recovery models. Another reason would be if you may want to run them on different instances.

When should you use a separate database?

3 Answers. Show activity on this post. If you ever need to move the application, independently of the user database, then you need a separate database for the application (in whatever form that takes), so that the database can travel with the application, leaving the user data intact in its original location.

Can I use 2 databases?

You can use two databases the same reason most banks have two ATMs, for reliability. You can swap one in if the other fails, but to do it quickly requires setup, such as a cname and controlling your own DNS server.

Why is it important to use different databases?

Within systematic reviews, when searching for relevant references, it is advisable to use multiple databases. However, searching databases is laborious and time-consuming, as syntax of search strategies are database specific.