Which of the following is true about a one-to-one relationship? a. They are almost always a mistake.

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Which of the following is true about a one-to-one relationship?

a. They are almost always a mistake.

b. They create Cartesian joins in queries.

c. They relate two tables using the primary key field in both tables.

d. They are only used to import and update data.

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Related Book For  answer-question

Concepts Of Database Management

ISBN: 9780357422083

10th Edition

Authors: Lisa Friedrichsen, Lisa Ruffolo, Ellen Monk, Joy L. Starks, Philip J. Pratt

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