sql server - How to alias union of three sets? -


i need alias union of 3 query this:

select * ( select * union select * b union select * c)t1

my code appear error.

i don't know how solve it.

please me

first, instead of using select *, name columns; that's error lies. 1 or more of tables (a, b, or c) has more or less columns others.

select  col1, col2    ( select    col1, col2                          union           select    col1, col2                b           union           select    col1, col2                c         ) t1

if doesn't fix it, post error message received, , rdbms using.


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