Which constructs in a Presentation-Layer ER diagram cannot be directly mapped to a logical schema? What is

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Which constructs in a Presentation-Layer ER diagram cannot be directly mapped to a logical schema? What is required to represent these constructs in a Design-Specific ER diagram?

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Data Modeling and Database Design

ISBN: 978-1285085258

2nd edition

Authors: Narayan S. Umanath, Richard W. Scammel

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Question Posted: Apr 21, 2016 06:24 AM

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Which constructs in a Presentation-Layer ER diagram cannot be directly mapped to a logical schema? What is

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The two constructs in a Coarsegranular DesignSpecific ER diagram that c...View the full answer

Data Modeling and Database Design

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