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Notes of ENTITY RELATIONSHIP Modelling Entity – Relationship(ER) Modelling ER Model Concepts --Entities and Attributes -- Entity Types, Value Sets, and Key Attributes --Relationships…
Entity Relationship Modeling Objectives: • • • To illustrate how relationships between entities are defined and refined. To know how relationships are incorporated…
Database Management System UNIT -2 Entity-Relationship Model Introduction to ER Model ER model is represents real world situations using concepts, which are commonly used…