Reads and Writes don’t have to live in the same database, data model or even the same service. Let us discuss CQRS
no separation
one service that does read/write
partial separation
You can keep one service but backend have multiple connections with different users same database
full separation
Read services / write services
two databases OLAP / OLTP
Pros
scalability
security
Cons
complex and very hard to follow, what we see with microservices..
resources
https://martinfowler.com/bliki/CQRS.html
http://codebetter.com/gregyoung/2010/02/16/cqrs-task-based-uis-event-sourcing-agh/
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