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CQRS

Command Query Responsibility Segregation

Definition

CQRS separates read (query) and write (command) operations into distinct models, allowing each to be optimized independently. The write model handles state changes and enforces business rules; a separate read model (often a denormalized projection) serves queries efficiently.

CQRS is commonly paired with Event Sourcing and enables independent scaling of read and write workloads.


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