1.The Enhanced E-R Model and Business Rules Modern Database Management Jeffrey A. Hoffer, Mary B. Prescott, Fred R. McFadden2. Super types and Subtypes Subtype: A sub grouping…
The Enhanced E-R Model Database Management System 1 (ITED123A) Objectives ⢠Define terms ⢠Understand use of supertype/subtype relationships ⢠Understand use of…
Slide 1 Enhanced Entity-Relationship Modeling Slide 2 Entity, Relationship, Attribute Ebay: –Bid: Is this an entity or relationship? –Item and images Is image an entity…