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MySQL UNION

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  1. The following statement is invalid.
    SELECT name, id FROM table1 UNION name, def FROM table2;
    1. False
    2. True
    3. NA
    4. NA
    5. NA
Correct Option: A

Even if the columns ‘id’ and ‘def’ have different data types, the results from these columns are placed into the column ‘id’. The data types can be determined from the values in the columns.


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