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Normal form - Wikipedia, the free encyclopedia
Normal form is a term that may refer to: • Normal form (databases) • Normal form (game theory) • Normal form (mathematics) In formal language theory • Beta normal form • Chomsky normal form • Greib...
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Database normalization - Wikipedia, the free encyclopedia
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About Normal ... Forms and Applications ... All forms are Adobe Acrobat [PDF] unless otherwise noted.
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The Normal Forms ... These are referred to as normal forms and are numbered from one (the lowest form of normalization, referred to as first normal form or 1NF) through five (fifth normal form or 5NF). In practical applications, you'll often see 1NF, 2NF, and 3NF along with the occasional 4NF. Fifth normal form is very...
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There are other 'higher' forms of normalisation, for even third normal form doesn't guarantee that all 'anomalies' have been removed. Generally, we don't often go beyond 3NF (third normal form), but here are a few 'higher' normal forms, just to whet your appetite!
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A database is said to be in one of the Normal Forms if it satisfies the rules required by that Form; it also will not suffer from any of the problems addressed by the Form.
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The 5 Normal forms in Database Design. The formal definition of the five Normal Forms as a foundation for sound database design ... The Five Normal Forms - formal definitions...
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