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Indirect key dependency - PowerPoint PPT Presentation

First normal form

First normal form. The intersection of each row and column contains one and only one value No multivalued attributes Two approaches to normalisation Flatten by duplicating non repeating data Put repeated data into a separate relation. Id. Name. Add. DOB. ModId. Mark. Desc. 1. BB.

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Indirect key dependency - PowerPoint PPT Presentation

First normal form