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प्रश्न
Which of the following statements is FALSE about keys in a relational database?
पर्याय
Any candidate key is eligible to become a primary key.
A primary key uniquely identifies the tuples in a relation.
A candidate key that is not a primary key is a foreign key.
A foreign key is an attribute whose value is derived from the primary key of another relation.
MCQ
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उत्तर
A candidate key that is not a primary key is a foreign key.
Explanation:
A candidate key that is not a primary key is an Alternate key.
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Keys in a Relational Database
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