A UNION query is which of the following?

SQL Server - Quiz(MCQ)

Combines the output from multiple queries and does not include the same number of columns

Combines the output from no more than two queries and must include the same number of columns

Combines the output from multiple queries and must include the same number of columns

Combines the output from no more than two queries and does not include the same number of columns

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

Explanation : A single UNION can combine only 2 sql query at a time.

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