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Dept purchases - PowerPoint PPT Presentation

L02: Logical Database Design

L02: Logical Database Design. Introduction Functional Dependencies Normal Forms Normalization by decomposition. Life Cycle of Database Applications. Analyze the company situation Define problems & constraints Define objectives; scope and boundaries. Database initial study.

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Schema Refinement and Normal Forms

Schema Refinement and Normal Forms. Chapter 19. The Evils of Redundancy. Redundancy is at the root of several problems associated with relational schemas: redundant storage, insert/delete/update anomalies

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1.07k views • 50 slides

Functional Dependencies

Functional Dependencies. CS 186, Spring 2006, Lecture 21 R&G Chapter 19. Science is the knowledge of consequences, and dependence of one fact upon another. Thomas Hobbes (1588-1679 ). Review: Database Design. Requirements Analysis user needs; what must database do? Conceptual Design

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301 views • 17 slides

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Dept purchases - PowerPoint PPT Presentation

L02: Logical Database Design

Schema Refinement and Normal Forms

Functional Dependencies