SSRS display empty rows

Question

Hi,
We have a simple report like the following left side, because we use group by in query, now the empty rows will not show in report.
Is there any way we can show all empty items from column B as the snapshot right side? Thank you.
select columnA, columnB, sum(total1) as Total
from mytable
group by columnA, columnB

Answer 1

That's not so much an SSRS issue as it is a SQL issue. It can be tough getting SSRS to display data that doesn't exist.
You may be able to get it to work using a Matrix but my personal preference is to handle it in the SQL code itself. Something like the following should work for you...
CREATE TABLE #temp (
ColA CHAR(2),
ColB CHAR(2),
Amt INT
INSERT #temp (ColA,ColB,Amt) VALUES
('A1','B1',10),
('A1','B1',10),
('A1','B2',25),
('A1','B2',5),
('A1','B3',10),
('A2','B1',20)
-- SELECT * FROM #temp
SELECT
t0.ColA,
t0.ColB,
SUM(COALESCE(t.Amt, 0)) AS Total
FROM
#temp t
FULL JOIN (
SELECT
t1.ColA,
t2.ColB
FROM (
SELECT DISTINCT t1.ColA
FROM #temp t1
) t1
CROSS JOIN (
SELECT DISTINCT t2.ColB
FROM #temp t2
) t2
) t0
ON t.ColA = t0.ColA
AND t.ColB = t0.ColB
GROUP BY
t0.ColA,
t0.ColB
ORDER BY
t0.ColA,
t0.ColB
Jason Long