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Database Systems: Design, Implementation, and Management Tenth Edition

Database Systems: Design, Implementation, and Management Tenth Edition. Chapter 5 Advanced Data Modeling. Objectives. In this chapter, students will learn: About the extended entity relationship (EER) model How entity clusters are used to represent multiple entities and relationships

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Chapter 3 The Enhanced E-R Model

Chapter 3 The Enhanced E-R Model. Jason C. H. Chen, Ph.D. Professor of MIS School of Business Administration Gonzaga University Spokane, WA 99258 chen@jepson.gonzaga.edu. Objectives. Define terms Understand use of supertype/subtype relationships

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1.02k views • 42 slides

The Enhanced Entity Relationship Diagrams (E-ERDs)

The Enhanced Entity Relationship Diagrams (E-ERDs). Supertypes and Subtypes. Subtype: A subgrouping of the entities in an entity type that has attributes distinct from those in other subgroupings Supertype: A generic entity type that has a relationship with one or more subtypes

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420 views • 22 slides

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Subtype discriminator - PowerPoint PPT Presentation

Database Systems: Design, Implementation, and Management Tenth Edition

Chapter 3 The Enhanced E-R Model

The Enhanced Entity Relationship Diagrams (E-ERDs)