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asjstr asjstr
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5 years ago
In a supertype-subtype structure, discriminator attributes ________.

• are easily represented in a relational design

• cannot be represented in a relational design

• require application logic to determine which subtypes correspond to a specific supertype instance

• Both cannot be represented in a relational design and require application logic to determine which subtypes correspond to a specific supertype instance are correct
Textbook 
Database Processing: Fundamentals, Design, and Implementation

Database Processing: Fundamentals, Design, and Implementation


Edition: 15th
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NashuaNashua
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5 years ago
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asjstr Author
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#2
5 years ago
I appreciate what you did here, answered it correctly Smiling Face with Open Mouth
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