UGC NET June-2019 CS Paper-2
October 6, 2023NTA UGC NET DEC-2022 Paper-2
October 6, 2023UGC NET June-2019 CS Paper-2
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Question 7
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Which of the following key constraints is required for functioning of foreign key in the context of relational database?
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Unique key
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Primary key
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candidate key
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Check key
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Question 7 Explanation:
Foreign key is a key whose values depends on the primary key of a relation. So for the functioning of a foreign key in the context of relational database we need a primary key.
Correct Answer: B
Question 7 Explanation:
Foreign key is a key whose values depends on the primary key of a relation. So for the functioning of a foreign key in the context of relational database we need a primary key.