A candidate key that is not selected as the primary key is called ________.
Options
- A. Foreign key
- B. Alternate key
- C. Composite key
- D. More than one of the above
- E. None of the above
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Quiz Practice:
Correct Answer (Detailed Explanation is Below)
B. Alternate key
Detailed Explanation
- Alternate key: A candidate key that is not selected as the primary key.
- A table may have multiple candidate keys but only one primary key.
- The remaining candidate keys are called alternate keys.