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Part I: Database Design > Implementing Entity-Relationship Models: Relational D...

Chapter 3. Implementing Entity-Relationship Models: Relational Databases

An E/R model of a database is an abstract model, visualized through an E/R diagram. For this to be useful, we must translate the abstract model into a concrete one. That is, we must describe each aspect of the model in the concrete terms that a database program can manipulate. In short, we must implement the E/R model. This requires implementing several things:

  • The entities

  • The entity classes

  • The entity sets

  • The relationships between the entity classes


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