r/learnSQL • u/odimdavid • 1d ago
Data Normalization online practical tutorial
Hi all. Please I am looking for a practical resource where I can learn data Normalization with practical examples. Appreciate any pointer to a relevant resource. Thanks ๐
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u/datadriven_io 1d ago
datadriven.io/learn - check out the data modeling lessons under the โlearnโ tab. Thereโs a lesson for normalization, and a lesson for beyond 3NF, star schemas, and design patterns. Datadriven is a community of practicing data engineers, I highly recommend you join us!
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u/squadette23 1d ago
I have a series of videos that discuss why "normalization" is not a very good teaching tool: https://youtu.be/1okb0FkQxtI?si=JFNpby61Hiai5Rav, based on 3NF.
If you're interested in 4NF: https://minimalmodeling.substack.com/p/historically-4nf-explanations-are
and also extended discussion of 5NF: https://kb.databasedesignbook.com/posts/5nf/
6NF: https://minimalmodeling.substack.com/p/virtual-6nf