What is union compatibility? Why do the UNION, INTERSECTION, and DIFFERENCE operations require that the relations on

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What is union compatibility? Why do the UNION, INTERSECTION, and DIFFERENCE operations require that the relations on which they are applied be union compatible?

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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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Posted Date: Jun 14, 2019 09:45 AM

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What is union compatibility? Why do the UNION, INTERSECTION, and DIFFERENCE operations require that the relations on

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Union compatibility The two relations are said to be ... View the full answer

Data Modeling and Database Design

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