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Database Systems MCQs - Chapter 10

Formal Relational Query Languages Quiz Questions & Answers PDF Download - 15

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Formal Relational Query Languages Exam Questions and Answers PDF Download: Test 15

MCQ: 71

The tuple relational calculus language is of type

  1. Nonprocedural
  2. Formal
  3. Processed
  4. Structure
MCQ: 72

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

  1. r + s
  2. r - s
  3. r / s
  4. r ^ s
MCQ: 73

A relation basically is by definition a subset of a

  1. Selection
  2. Projection
  3. Union
  4. Cartesian product
MCQ: 74

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

  1. Structure
  2. Definition
  3. Arity
  4. Declaration
MCQ: 75

A query that involves a Cartesian product includes a

  1. Projection operation
  2. Selection operation
  3. Union operation
  4. Set-intersection operation

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