How would you map a category or union type with the same keys on the superclasses?

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Database Design Using Entity Relationship Diagrams

ISBN: 9781032017181

3rd Edition

Authors: Sikha Saha Bagui, Richard Walsh Earp

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Question Posted: Jan 09, 2024 07:00 AM

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How would you map a category or union type with different keys on the superclasses?
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How would you map a category or union type with the same keys on the superclasses?

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As per mapping Rule 20 Create a new relation for the subclass or union ...View the full answer

Database Design Using Entity Relationship Diagrams

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