Database Systems MCQs - Chapter 10

Formal Relational Query Languages Quiz Questions and Answers PDF - 15

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Formal Relational Query Languages Questions & Answers PDF Download: MCQ Quiz 15

MCQ 71: The tuple relational calculus language is of type

A) Nonprocedural

B) Formal

C) Processed

D) Structure

MCQ 72: The expression that would produce a relation containing the tuples in r but not in s, is

A) r + s

B) r - s

C) r / s

D) r ^ s

MCQ 73: A relation basically is by definition a subset of a

A) Selection

B) Projection

C) Union

D) Cartesian product

MCQ 74: For the union operation, the relations r and s must be of the same

A) Structure

B) Definition

C) Arity

D) Declaration

MCQ 75: A query that involves a Cartesian product includes a

A) Projection operation

B) Selection operation

C) Union operation

D) Set-intersection operation

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