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Logical Database Design (2 of 3)

Logical Database Design (2 of 3). John Ortiz. Finding All Candidate Keys (cont.). Method 2 (manual approach): Step 1: Draw the dependency graph of F. Each vertex corresponds to an attribute. Edges can be defined as follows: A ? B becomes A B

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566 views • 42 slides

NORMALIZATION

NORMALIZATION. FIRST NORMAL FORM (1NF): A relation R is in 1NF if all attributes have atomic value = one value for an attribute = no repeating groups = no multivalued attributes = no composite attributes. Example. Non-1NF

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288 views • 23 slides

NORMALIZATION

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295 views • 22 slides

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2nf - PowerPoint PPT Presentation

Logical Database Design (2 of 3)

NORMALIZATION

NORMALIZATION