Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.2NF to 3NF Eliminate all[…]
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2 NF
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Read more1 NF,”Have no duplicate tuplesHave no multi-valued attributesBy definition, a valid relation will conform to 1NFData that do not conform to 1NF (e.g.
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Read moreNormalization,”A formal method for creating well designed relational databases involves normalization
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Read moretrivial vs non trivial functional dependancies,”Trivial functional dependencies are typically omitted from FD sets because they add little information.The more meaningful alternative to trivial FDs are non-trivial functional dependencies: FDs in which X → Y holds but Y is not a subset of X, such as CourseID → Topic
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.trivial vs non trivial functional[…]
Read moreFunctional dependancy closure,”Given a set of FDs, F, the closure of F is often notated as F+Given an existing set of FDs
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Read morePseudotransitivity,”If X → Y and YZ → W
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Read moreUnion,”If X → Y and X → Z
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Read moreDecomposition,”If X → YZ
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.Decomposition,”If X → YZ then[…]
Read moreTransivity,”if X → Y and Y → Z
Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review.Transivity,”if X → Y and[…]
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