Do microservices need to have separate databases?

Can microservices have same database?

Yes, it's possible to integrate a database for microservices. You can create a single shared database with each service accessing data using local ACID transactions.

Why should each microservice have its own database?

It would allow you to pick the database technology which fits your Business requirement best in order to get the best performance or usage of it. For example some specific micro-service might have some Read-heavy operations with very complex filter options and a full text search requirement.

What database do you use for microservices?

Redis as a Multimodel Database — so microservices designers can organize their data using the data structure that best suits their performance requirements. Redis simplifies your application and data architecture.