Database-Management-System
August 29, 2024Database-Management-System
August 29, 2024Database-Management-System
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Question 371
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Which of the following is a unary operation?
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Intersection
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Projection
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Join
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Cartesian Product
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Question 371 Explanation:
Intersection, join , cartesian product is performed between two relations. But projection is just used to select a few columns from a relation.
Correct Answer: B
Question 371 Explanation:
Intersection, join , cartesian product is performed between two relations. But projection is just used to select a few columns from a relation.