Can an app use two different databases?

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There's nothing wrong with accessing two databases from one application. It's a model used frequently. It's not uncommon to have a Node server access both Mongodb and Redis, using each for their strengths. You just have to tie data relations together in your app instead of in the database. 28 апр. 2013 г.

Can an app have two 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. This approach, however, is not bulletproof. Far from it, actually.

Can I use multiple databases?

With Master-Slave topologies and modern practices such as Database sharding becoming increasingly ubiquitous, database administrators (DBAs) and developers are working with multiple databases more than ever before. Doing so is made a lot easier by software that can accommodate multiple database connections.

Can we have two databases configured for the same application?

Spring boot allows you to connect to multiple databases by configuring multiple data sources in a single spring boot application using hibernate and JPA. Spring boot enables repositories to connect to multiple databases using JPA from a single application.

How many databases can one application contain?

You can, I believe, create more than 256 databases per instance, but only 256 can be active at any point. If you try to activate more databases than you have configured for numdb, you will get: SQL1041N The maximum number of concurrent databases have already been started.

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