Why is it important to use more than one database?

Should I use multiple database?

Practically, it is recommended to start small with one service and database (if you prefer to develop your app sooner), and then, over time break it down into multiple services as you need to add and/or improve features.

Why do organizations have 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.

Can you use multiple databases?

Multiple database technologies can be used with monolithic applications, and can even seem more natural in a microservices environment, where each service would have its own database.

How many databases should be used?

Typically at least three databases are used for a systematic review. A list of most commonly used databases appears on this page, but there may be others to consider depending upon the topic. When conducting a systematic review, a thorough search strategy is necessary.