Question

I need to calculate subtotals in a separate line, but I cannot use ROLLUP or CUBE (because not allowed). I use SQL server 2008.
There is an other way to get follow results? thanks in advance!

SELECT deptno, empno, SUM (sal)
2 FROM emp_test
3 GROUP BY ROLLUP (deptno, empno);

DEPTNO      EMPNO   SUM(SAL)

---

    10       7782      20000
    10       7839      10000
    10                 30000
    20       7566       5950
    20       7788       6000
    20       7902       6000
    20                 17950
    30       7698      20000
    30       7699      20000
    30                 40000
                       87950

Answer 1

You might want to try is using the GROUPING() function on the column. This function returns 1 if it is part of the GROUPING SETS subtotals, and 0 if it is a regular column. http://technet.microsoft.com/en-us/library/ms178544(SQL.90).aspx

I included the sample data I tested with. Remove the first WITH emp_test AS () when you use the select statement.

My test data:

WITH emp_test AS
(
   SELECT 10 AS DEPTNO, 7782 AS EMPNO, 20000 AS sal
   UNION ALL SELECT 10, 7839, 10000
   UNION ALL SELECT 20, 7566, 5950
   UNION ALL SELECT 20, 7788, 6000
)

Actual query below:

SELECT deptno, empno
   , CASE
      WHEN GROUPING(empNo) = 1 THEN null
      ELSE SUM(sal)
     END as sum_salary
   , CASE
      WHEN GROUPING(empno) = 1 THEN SUM(sal)
      ELSE NULL
     END AS SubTotal
FROM emp_test
GROUP BY GROUPING SETS (DeptNo, Empno), (DeptNo)