What is a multiple database?

How do multiple databases work?

The easiest way to use multiple databases is to set up a database routing scheme. The default routing scheme ensures that objects remain 'sticky' to their original database (i.e., an object retrieved from the foo database will be saved on the same database).

Can you have multiple databases?

Try to avoid multiple databases or tables with the same design or purpose. Multiple database apps are usually apps which have their own data requirements but also have to integrate with another existing app or service's database.

Why do we need 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.

Why do organizations create multiple databases?

Why do organizations create multiple databases? First, because of resource limitations, organizations fund development of their information systems one application at a time. Second, organizations may acquire some of their information systems from outside vendors. This also results in a proliferation of databases.