What does Fourth Normal Form mean?
Definitions for Fourth Normal Form
fourth nor·mal form
This dictionary definitions page includes all the possible meanings, example usage and translations of the word Fourth Normal Form.
Wiktionary
fourth normal formnoun
A stage in the normalization of a relational database in which a database is in Boyce-Codd normal form and all multi-valued dependencies are functional dependencies.
Wikidata
Fourth normal form
Fourth normal form is a normal form used in database normalization. Introduced by Ronald Fagin in 1977, 4NF is the next level of normalization after Boyce–Codd normal form. Whereas the second, third, and Boyce–Codd normal forms are concerned with functional dependencies, 4NF is concerned with a more general type of dependency known as a multivalued dependency. A Table is in 4NF if and only if, for every one of its non-trivial multivalued dependencies X Y, X is a superkey—that is, X is either a candidate key or a superset thereof.
Numerology
Chaldean Numerology
The numerical value of Fourth Normal Form in Chaldean Numerology is: 3
Pythagorean Numerology
The numerical value of Fourth Normal Form in Pythagorean Numerology is: 6
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"Fourth Normal Form." Definitions.net. STANDS4 LLC, 2024. Web. 24 Apr. 2024. <https://www.definitions.net/definition/Fourth+Normal+Form>.
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