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Free "Set Operations Study" App Download with MCQ: If any of the input values is null, the result of an arithmetic expression, would be; with answers: 0, null, 1, and undefined for database electronic learning. Practice Set Operations Quiz Questions, download Google e-Book (Free Chapter) to master information systems.

Set Operations MCQs PDF Download – Prep Test

MCQ 1: If any of the input values is null, the result of an arithmetic expression, would be:

  1. 0
  2. Null
  3. 1
  4. Undefined

MCQ 2: SQL uses the special keyword in a predicate to test for a null value:

  1. Escape
  2. Unknown
  3. Known
  4. Null

MCQ 3: The union operation automatically eliminates duplicates, unlike the:

  1. Select clause
  2. From clause
  3. Define clause
  4. Where clause

MCQ 4: Duplicate tuples must be eliminated, when the query uses the clause:

  1. Select Clause
  2. Where Distinct Clause
  3. Select distinct Clause
  4. From Distinct Clause

MCQ 5: The SQL set operations include:

  1. Union
  2. Intersect
  3. Except
  4. All of the Above

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