FunctionalDependencies-1
Tallahassee, Florida, 2015 COP4710 Database Systems Relational Design Fall 2015.
Functional Dependencies R&G Chapter 19 Science is the knowledge of consequences, and dependence of one fact upon another. Thomas Hobbes (1588-1679 )
Schema Refinement and Normal Forms. The Evils of Redundancy v Redundancy is at the root of several problems associated with relational schemas: – redundant.
Review
Functional Dependencies and Normalization
Schema Refinement and Normal Forms Jianlin Feng School of Software SUN YAT-SEN UNIVERSITY courtesy of Joe Hellerstein for some slides.
Normal Forms1. 2 The Problems of Redundancy Redundancy is at the root of several problems associated with relational schemas: Wastes storage Causes problems.
Functional Dependencies R&G Chapter 19. Review: Database Design Requirements Analysis – user needs; what must database do? Conceptual Design – high level.
IT 244 Database Management System
1 Schema Refinement and Normal Forms Yanlei Diao UMass Amherst April 10, 2007 Slides Courtesy of R. Ramakrishnan and J. Gehrke.
Database Management Systems, R. Ramakrishnan and J. Gehrke 1 Schema Refinement and Normal Forms Chapter 19 Instructor: Mirsad Hadzikadic.
