Disadvantages of CQRS
For systems that simply need basic CRUD operations, implementing a CQRS system may introduce unnecessary complexity. CQRS systems have a higher degree of complexity, especially when combined with event-sourcing. For this reason, it is important to understand that CQRS is not applicable to all situations. Software architects should be aware that CQRS does not have to be applied to the entirety of a software system. It can be applied to just some subsystems of a larger architecture where it will be of the greatest benefit.
While using different data stores for query and command models can improve performance and increase security, you do have to consider that when you perform read operations, you may be reading data that ...
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