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The Extended Entity Chapter 5 Relationship Model

The Extended Entity Chapter 5 Relationship Model

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The Extended Entity Relationship Model • Result of adding more semantic constructs to original entity relationship (ER) model • Diagram using this model is called an EER diagram (EERD) • Combines some of the Object-oriented concepts with Entity Relationship concepts. 2 Entity Supertypesand Subtypes • Entity supertype –Generic entity ...

  Entity, Relationship, Entity relationship

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