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Relational Database Design Algorithms and Normal Forms: A Comprehensive Study

This chapter explores relational database design algorithms and properties of relational decompositions, including dependency preservation and lossless join. It also discusses multivalued dependencies, fourth and fifth normal forms, and other types of dependencies and normal forms.

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Relational Database Design Algorithms and Normal Forms: A Comprehensive Study

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  1. Chapter 11 Relational Database Design Algorithms and Further Dependencies

  2. Properties of Relational Decompositions • Relation Decomposition and Insufficiency of Normal Forms • Dependency Preservation Property of a Decomposition • Lossless (Nonadditive) Join Property of a Decomposition • Testing Binary Decomposition for the Nonadditive Join Property • Successive Lossless (Nonadditive) Join Decompositions

  3. Algorithms for Relational Database Schema Design • Dependency-Preserving Decomposition into 3NF Schemas • Lossless (Nonadditive) Join Decomposition into BCNF Schemas • Dependency-Preserving and Nonadditive (Lossless) Join Decomposition into 3NF Schemas • Problems with Null Values and Dangling Tuples • Discussion of Normalization Algorithms

  4. Multivalued Dependencies and Fourth Normal Form • Formal Definition of Multivalued Dependency • Inference Rules for Functional and Multivalued Dependencies • Fourth Normal Form • Lossless (Nonadditive) Join Decomposition into 4NF Relations

  5. Join Dependencies and Fifth Normal Form

  6. Inclusion Dependencies

  7. Other Dependencies and Normal Forms • Template Dependencies • Domain-Key Normal Form

  8. Summary

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