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The top documents tagged [subtypes supertype]
1 Chapter 4: The Enhanced ER Model and Business Rules Modern Database Management 8 th Edition
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© 2011 Pearson Education 1 Chapter 3: Advanced Database Analysis Modern Database Management 10 th Edition, International Edition Jeffrey A. Hoffer, V
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Chapter 4 © 2005 by Prentice Hall 1 Objectives Definition of terms Definition of terms Use of supertype/subtype relationships Use of supertype/subtype
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Enhanced Entity-Relationship Modeling. Entity, Relationship, Attribute Ebay: –Bid: Is this an entity or relationship? –Item and images Is image an entity
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The Enhanced E-R (EER) Model The Enhanced E-R (EER) Model EER model is used to identify the model that has resulted form extending the original ER model
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