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    Question

    Which of the following statements about the UNION

    operator in SQL is correct?
    A It combines results of two queries and includes duplicate rows Correct Answer Incorrect Answer
    B It combines results of two queries and removes duplicate rows Correct Answer Incorrect Answer
    C It can combine queries with different number of columns Correct Answer Incorrect Answer
    D It works only with numeric data Correct Answer Incorrect Answer
    E It sorts the result automatically in descending order Correct Answer Incorrect Answer

    Solution

    It combines results of two queries and removes duplicate rows.

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