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2nf relation - PowerPoint PPT Presentation

Chapter 7

Chapter 7. Normalization. Chapter 13 in Textbook. How to produce a good relation schema?. 1. Start with a set of relation 2. Define the functional dependencies for the relation to specify the PK 3. Transform relations to normal form. Data Redundancy. STAFFBRANCH. Address. StaffNo.

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Normalization

Normalization. Objectives. Purpose of normalization. Problems associated with redundant data. Identification of various types of update anomalies such as insertion, deletion, and modification anomalies. How to recognize appropriateness or quality of the design of relations. Objectives.

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2nf relation - PowerPoint PPT Presentation

Chapter 7

Normalization