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Transformation of Relational Expressions App Download | Database Systems MCQ PDF e-Book

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The MCQ: The operations of Natural-join are "Transformation of Relational Expressions" App Download [Free] with answers: commutative, associative, distributive, and conjunctive to learn certification courses online. Practice Transformation of Relational Expressions Quiz Questions, download Apple Book (Free Sample) for best online schools for computer science.

SAT Test for SAT Prep

Transformation of Relational Expressions Questions and Answers PDF Download

MCQ: 1

The operations of Natural-join are

  1. Commutative
  2. Associative
  3. Distributive
  4. Conjunctive
MCQ: 2

The optimizer that explores the space of all query-evaluation plans is called

  1. Cost-based
  2. Plan-based
  3. Estimate-based
  4. Count-based
MCQ: 3

The process of replacement of a nested query by a query with a join is called

  1. Correlation
  2. Decorrelation
  3. Materialization
  4. Non-materialization
MCQ: 4

The operations of theta-join are

  1. Distributive
  2. Conjunctive
  3. Commutative
  4. Associative
MCQ: 5

The two expressions generate the same set of tuples on every legal database instance, the relational expressions are said to be

  1. Dependent
  2. Independent
  3. Equivalent
  4. Non-equivalent

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