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  • Question
  • A UNION query is which of the following?


  • Options
  • A. Combines the output from multiple queries and does not include the same number of columns.
  • B. Combines the output from multiple queries and must include the same number of columns.
  • C. Combines the output from no more than two queries and does not include the same number of columns.
  • D. Combines the output from no more than two queries and must include the same number of columns.

  • Correct Answer
  • Combines the output from multiple queries and must include the same number of columns. 

    Explanation

    A UNION query combines the output from multiple queries and must include the same number of columns.

  • Tags: Analyst, Database Administrator, IT Trainer

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