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The MCQ: Output generated by boolean expression not unknown is; "SQL MCQs" App Download [Free] with answers: unknown, true, false, and null for online software engineering classes. Study SQL Server Multiple Choice Questions and Answers FAQs, download Google e-Book (Free Chapter) for free online classes.

SQL MCQs with Answers – PDF Download

MCQ 1: The output generated by the boolean expression not unknown is:

  1. Unknown
  2. True
  3. False
  4. Null

MCQ 2: Aggregate functions are said to take a set or multiset of values as input and return:

  1. Single value
  2. Multiple sets
  3. Multiple attributes
  4. Multiple values

MCQ 3: An aggregate function of SQL that demands the input to be a collection of numbers is known to be:

  1. Avg
  2. Sum
  3. Both A and B
  4. Min/Max

MCQ 4: The clause when is used in a query, demands elimination of duplicate tuples, is called:

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

MCQ 5: Built-in aggregate functions introduced by SQL can be classified into:

  1. 2 types
  2. 3 types
  3. 4 types
  4. 5 types

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