A
UNION query is which of the following?

Question

Answer

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

Answer

D.  
 Combines the output from
two queries and does not have to include the same number of columns

Answer

C.  
 Combines the output from
multiple queries and does not have to include the same number of columns

Answer

B.  
 Combines the output from two
queries and must include the same number of columns

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