Group By but include “missing” values

Question

Suppose I have the following.

select
  case
    when fcompany = \'Acme\' then \'Red\'
    when fcompany = \'Acme Rockets\' then \'Blue\'
    else \'Green\'
  en         


        

Answer 1

Yes, Union All may be your best bet.

SELECT 'red' AS Color, sum(fann_sales) FROM slcdpm WHERE fcompany = 'Acme' GROUP BY fcompany
UNION ALL
SELECT 'blue' AS Color, sum(fann_sales) FROM slcdpm WHERE fcompany = 'Acme Rockets' GROUP BY fcompany
UNION ALL
SELECT 'green' AS Color, sum(fann_sales) FROM slcdpm WHERE fcompany <> 'Acme' AND fcompany <> 'Acme Rockets' GROUP BY fcompany