The Semantics of Differing SCD2 Techniques

How small differences can have a big impact

Chad Isenberg
Towards Data Science
7 min readNov 16, 2023

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Photo by Brad Starkey on Unsplash

Recently, I’ve been thinking a lot about dimensional modeling, specifically how we represent different kinds of history in the warehouse / lakehouse. There are many articles that describe how to build an SCD2 table across many languages and platforms. Instead, I want to focus on something more nuanced and less commonly…

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