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Heff Heff
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6 years ago
Which of the following is not true about representing subtypes in a relational database design?
A) One table is created for the supertype and one for each subtype.
B) All of the attributes of the supertype are added to the subtype relations.
C) The key of the supertype is made the key of the subtypes.
D) A subtype and its supertype are representations of the same underlying table.
E) An instance of the supertype may be related to one instance each of several subtypes.
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Database Concepts

Database Concepts


Edition: 7th
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jeckojecko
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6 years ago
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Heff Author
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6 years ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
spaghetti
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Yesterday
Correct Slight Smile TY
Lawson1981
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2 hours ago
Smart ... Thanks!
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