Query Optimization Multiple Choice Questions and Answers 1 PDF Book Download

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MCQs on Query Optimization Test 1 PDF Book Download

MCQ: Most database systems to store number of values for an attribute within several ranges, uses

  1. Histogram
  2. Gantt chart
  3. Pie-chart
  4. Bar-graph


MCQ: Process of finding a good strategy for processing a query is called

  1. Query optimization
  2. Query processing
  3. Query management
  4. Query cost


MCQ: Modification to a relation or expression is referred to as its

  1. Moderator
  2. Change
  3. Alterations
  4. Differential


MCQ: Operations of Natural-join are

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


MCQ: Iterator operation of a demand driven pipeline provides function of

  1. open()
  2. next()
  3. close()
  4. All of the Above