Can one microservice have multiple databases?

Can one microservice have multiple databases?

Each microservice should have its own database and should contain data relevant to that microservice itself. This will allow you to deploy individual services independently. Individual teams can now own the databases for the corresponding microservice.

Should microservices have different databases?

The Database-per-Service pattern To achieve that, each service must have its own private data store. Order Service and Customer Service each store data in their own databases. Changes to one database don’t impact other microservices.

What kind of database do I need for microservices?

Other services might need a NoSQL database such as MongoDB, which is good at storing complex, unstructured data, or Neo4J, which is designed to efficiently store and query graph data. Use a (single) database that is shared by multiple services. Each service freely accesses data owned by other services using local ACID transactions.

Is it single database or single microservice instance?

All services will be dependent on the database version on that RDS instance. It really depends on your scalability requirements, and how/if your microservice instances need to cooperate to provide a single result. It helps to know what the trade-offs are:

How is a database shared by multiple services?

Use a (single) database that is shared by multiple services. Each service freely accesses data owned by other services using local ACID transactions. The OrderService and CustomerService freely access each other’s tables.

What’s the difference between data sovereignty and Microservices?

Data sovereignty comparison: monolithic database versus microservices In the traditional approach, there’s a single database shared across all services, typically in a tiered architecture. In the microservices approach, each microservice owns its model/data.