4NF in Practice
A 1992 paper by Margaret S. Wu notes that the teaching of database normalization typically stops short of 4NF, perhaps because of a belief that tables violating 4NF (but meeting all lower normal forms) are rarely encountered in business applications. This belief may not be accurate, however. Wu reports that in a study of forty organizational databases, over 20% contained one or more tables that violated 4NF while meeting all lower normal forms.
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“The practice of S/M is the creation of pleasure.... And thats why S/M is really a subculture. Its a process of invention. S/M is the use of a strategic relationship as a source of pleasure.”
—Michel Foucault (19261984)
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