Database Management System MCQs - Chapter 11

Relational Algebra and Calculus Multiple Choice Questions (MCQ) PDF - 4

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Relational Algebra & Calculus Questions & Answers PDF Download: MCQ Quiz 4

MCQ 16: In the relational calculus, the variables are bounded with the help of

A) non-identifiers

B) non-quantifiers

C) quantifiers

D) identifiers

MCQ 17: In unary relational operations, the symbols such as equal to, less than and greater than are classified as

A) tuple operators

B) column operators

C) comparison operators

D) row operators

MCQ 18: The JOIN operation which uses any of the comparison operators is classified as

A) THETA JOIN

B) CHI-JOIN

C) PI-JOIN

D) SIGMA-JOIN

MCQ 19: The kind of operation by which one tuple can be created with the help of combining tuples from two relations is classified as

A) square operation

B) join operation

C) division operation

D) relation operation

MCQ 20: Consider two tuples X and Y, the operation whose result includes tuples that are only in X but not in Y is classified as

A) square of relation X and Y

B) union of relation X and Y

C) intersection of relation X and Y

D) difference of relation X and Y

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