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Design Theory for Relational Databases

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Lecture 7

CS4416 Database Systems CS5122 Development of IS 2. Lecture 7. Design Theory for Relational Databases (part 1). Slides based on http://infolab.stanford.edu/~ullman/fcdb/aut07/index.html#lecture. Relational Schema Design.

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Normalization ???

Normalization ???. Anomalies Boyce-Codd Normal Form 3 rd Normal Form. Anomalies ??. Goal of relational schema design is to avoid anomalies and redundancy. Redundancy : Information may be repeated unnecessarily in several tuples.

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Database Management Systems Chapter 3 The Relational Data Model (III)

Database Management Systems Chapter 3 The Relational Data Model (III). Instructor: Li Ma Department of Computer Science Texas Southern University, Houston. September, 2006. Normalization. Anomalies Boyce-Codd Normal Form 3 rd Normal Form. Anomalies.

366 views • 23 slides

Normalization

Normalization. Anomalies Boyce-Codd Normal Form 3 rd Normal Form. Anomalies. Goal of relational schema design is to avoid anomalies and redundancy. Update anomaly : one occurrence of a fact is changed, but not all occurrences.

212 views • 21 slides

CS422 Principles of Database Systems Functional Dependencies

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