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Database Systems MCQs – Practice Test 49 (Chapter 1)

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Advanced SQL MCQs – Practice Test 49 PDF Download

MCQ 241: Patterns can use the SQL string matching special character i.e.:

  1. %
  2. ?
  3. #
  4. !

MCQ 242: A result tuple can be fetched using the method:

  1. getFetch
  2. setFetch
  3. selectFetch
  4. SQLFetch

MCQ 243: Avoiding interprocess communication reduces:

  1. Function calls
  2. Processor calls
  3. Input calls
  4. Runtime calls

MCQ 244: Generalization of the group by construct is supported by SQL to perform the:

  1. all operation
  2. commit operation
  3. rollup operation
  4. null operation

MCQ 245: The cube construct is very much like the rollup construct, except that rollup generates:

  1. fewer having by queries
  2. large having by queries
  3. fewer group by queries
  4. large group by queries

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