Introduction

In a monolithic application, we usually use one database for everything. This single database handles both read and write operations. The same tables serve complex join queries and also create, update, and delete operations. As the application grows, one model for both jobs becomes hard to manage.

CQRS stands for Command Query Responsibility Segregation. It's a design pattern that splits the operations of a system into two distinct parts: commands (which modify data i.e., writes) and queries (which read data i.e., reads)