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MySQL UNION

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  1. The UNION ALL has a higher precedence than UNION DISTINCT.
    1. False
    2. True
    3. NA
    4. NA
    5. NA
Correct Option: A

When there is a mixture of ‘UNION’ or ‘UNION DISTINCT’ statements with the ‘UNION ALL’ statements, any distinct union operation takes precedence over any ‘UNION ALL’ operations to its left.


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