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In this post I would like to discuss a frequently overlooked, though in some circumstances very important topic – concurrency handling in context of protection of the so-called Domain Invariants.

Database change management is not an easy task. It is even more difficult when we are at the beginning of a project where the data model is constantly changing. In this post I will describe what we need to do to have a good database change management mechanism.

In previous post I described two popular ways to manage database changes - state versioning where you keep whole current design of your database and versioning of transitions to desired state. In this post I wanted to show implementation of these two approaches in .NET environment combined together – what I think is the best way to manage database changes.