1. ENTITY-RELATIONSHIP MODEL 2. E- R DATA MODELING An entity is an object that exists and is distinguishable from otherobjects. Example: specific person, company, event,…

1. Database System Concepts, 6th Ed. ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use Chapter 7: Entity-RelationshipChapter 7: Entity-Relationship…

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DATABASE MANAGEMENT SYSTEM Entity-Relationship Model ER Model Agenda Design Process Modeling Constraints E-R Diagram Design Issues Weak Entity Sets Extended E-R Features…

Modeling A database can be modeled as: a collection of entities, relationship among entities. An entity is an object that exists and is distinguishable from other objects.…

Chapter 6: Entity-Relationship Model 6.* Chapter 6: Entity-Relationship Model Design Process Modeling Constraints E-R Diagram Design Issues Weak Entity Sets Extended E-R…

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Slide 1 CSc340 5b1 Database Design and the E-R Model Chapter 7 [1 of 2] Overview of the Design Process The Entity-Relationship Model Constraints Removing Redundant Attributes…

Database Management Systems Entity-Relationship Model Database Design Why do we need it? Agree on structure of the database before deciding on a particular implementation.…