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Raspberry Raspberry
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7 years ago
In a supertype/subtype hierarchy, each subtype has:
A) only one supertype.
B) at most two supertypes.
C) at least one subtype.
D) many supertypes.
Textbook 
Modern Database Management

Modern Database Management


Edition: 12th
Authors:
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dorkalotdorkalot
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7 years ago
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Raspberry Author
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#2
7 years ago
And right on time, exam is this Tuesday Frowning Face
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#3
7 years ago
I'll stick around a little while if you need more of an explanation, otherwise thanks for marking the topic solved
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