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Question
In a natural join, the column on which the join was made occurs twice in the new table.a. True
b. False
Answer
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Related questions
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a. True
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Normalization is a process that is used for changing attributes to entities.
a. True
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c. Subtype discriminators cannot be null.
d. Subtype does not have a supertype.
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The hierarchical model is software-independent.a. Trueb. False