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An Overview of 4th Normal Form

I continue a series on database normalization:

In this video, [I] explain what Fourth Normal Form (4NF) is and why I consider 5NF to be significantly more important. Even so, 4NF does make it easy to explain a certain common class of problem, allowing it to provide some measure of utility.

4th Normal Form is a special case of the much more exciting 5th Normal Form, but I do have a bit of a soft spot for it.