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Relational database normal form is nothing more than variable dereference. Used properly by following the two most important rules of object-oriented design, separation and encapsulation, one's database model will always work well. Violating the Law of Demeter enforces a concrete implementation on an otherwise abstract model, effectively multiplying in Cartesian fashion weakly related variables and needlessly increasing table object size with redundant information. Instead, refer to table objects no more than one level away from each other. Empower each level in the model hierarchy with the privilege and responsibility it deserves, giving each table suitably named verbs (methods), behavior and characteristics (fields).

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Format:PDFSize:187 KB
Date:May 2007
Pages:8

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