Question

Is it possible to get the sum of a column and all the column itself using one query?
I mean, I need SUM(Result.num) and the individual Result.num as well, but I dont want to use two separate queries for the purpose? the idea result might be the SUM as another column in the result.
Result might look like:
col1
Result.num1, SUM
Result.num2, SUM
Result.num3, SUM
….

 SELECT SUM(Result.num) 
   FROM (SELECT COUNT(colA) AS num 
           FROM Table1 
       GROUP BY colB) AS Result;

 SELECT Result.num 
   FROM (SELECT COUNT(colA) AS num 
           FROM Table1 
       GROUP BY colB) AS Result;

Answer 1

The answer is that you will do two statements but you can return the results in one result set. You can do that with a UNION ALL statement. Just take your two queries and put a UNION ALL statement between them. It will look like this:

 SELECT Result.num 
   FROM (SELECT COUNT(colA) AS num 
           FROM Table1 
       GROUP BY colB) AS Result;
 UNION ALL
 SELECT SUM(Result.num) 
   FROM (SELECT COUNT(colA) AS num 
           FROM Table1 
       GROUP BY colB) AS Result;

I switched the order around so that your SUM value would be at the end but you could put it at the beginning if you would like.