Technical patterns are filled with myths and mishaps. Quite often, this happens to CQS and CQRS.

Let’s start with these enigmatic acronyms.

CQS stands for Command Query Separation.

CQRS, Command Query Responsibility Segregation.

You can hear quite often that to use CQ(R)S:

• You need two databases.

• You have to use a messaging queue (e.g. RabbitMQ or Kafka).

• It’s…