Which of the following is a correct statement about primary keys? a. The data values of a

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Which of the following is a correct statement about primary keys?
a. The data values of a primary key must be different (i.e., unique).
b. A primary is always another table’s foreign key.
c. A primary cannot be used in another table as a foreign key.
d. Most tables in a database may not require primary keys.

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Accounting Information Systems

ISBN: 9781260571080

3rd International Edition

Authors: Vernon Richardson

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