What is the Entity-Relationship Model? - Diagram & Examples
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Study.comRonald Price
What is the Entity-Relationship Model? - Diagram & Examples
The entity-relationship model (ER) can be visualized in a diagram (ERD) to show a database's design, table, attributes, and relationships. Explore this through entities and tables, keys, and the idea of cardinality.
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2. Develop an extended entity-relationship diagram (EERD) that illustrates the relationaldatabase design described by the business rules in #1. The diagram should include theprimary key of each table in order to demonstrate correct implementation ofspecialization-generalization. While EERDs may well contain other attributes, in thisassignment you need not include them because they are not described in the businessrules. You should use legal database identifiers such as SitDownRestaurants orFoodM
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