SQL Server 2008 - merge rows when condition matched - sql-server

Question

I am running a stored procedure and getting the following value.
Name ID NewID Qty Rqty Total
Test1 1 5 4 9
Test2 10 1001 3 0 3
Test2 1001 4 2 6
Test3 15 1005 0 0 0
Test3 1005 3 4 7
If you look the Test3, where first id 15 has a new id 1005 But the Qty and Rqty is 0, next line I am getting ID 1005 and Qty, Rqty 3 and 4, total 7and this is correct.
What I am trying to do is when any ID got a new ID and Qty, Rqty both are 0, I need the following output in on row
Test3 15 1005 3 4 7
So, my final results will be -
Name ID NewID Qty Rqty Total
Test1 1 5 4 9
Test2 10 1001 3 0 3
Test2 1001 4 2 6
Test3 15 1005 3 4 7
My stored procedure is -
select Name, ID, NewID, Qty, RQty, SUM(Qty + RQty) as Total
from table1
Group By Name, ID, NewID, Qty, RQty
Order by Name
Could anyone help to solve this issue please.
Thanks

Answer 1

You will need to generate a psuedo "grouping" ID and NewID based on your conditions, group on those fields and select the MIN and MAX of the original ID and NewID along with aggregates of your other values. e.g.
CREATE TABLE dbo.Tests
(
Name varchar(10),
ID int,
[NewID] int NULL,
Qty int,
Rqty int
);
INSERT dbo.Tests (Name,ID,[NewID],Qty,Rqty)
--VALUES ('Test1',1,NULL,5,4)
-- ,('Test2',10,1001,3,0)
-- ,('Test2',1001,NULL,4,2)
-- ,('Test3',15,1005,0,0)
-- ,('Test3',1005,NULL,3,4);
VALUES ('test1',1,101,0,0)
,('test1',101,NULL,2,4)
,('test2',2,102,0,0)
,('test2',102,NULL,4,5)
,('test3',3,103,0,0)
,('test3',103,NULL,3,3)
,('test4',4,104,0,0)
,('test4',104,NULL,1,3)
,('test5',5,105,0,0)
,('test5',105,NULL,3,6);
SELECT t.Name,
min(t.ID) AS ID,
max(t.[NewID]) AS [NewID],
sum(t.Qty) AS Qty,
sum(t.Rqty) AS Rqty,
sum(t.Qty)+sum(t.Rqty) AS Total
FROM dbo.Tests AS t
CROSS APPLY (VALUES(CASE WHEN Qty = 0 AND Rqty = 0 AND t.[NewID] IS NOT NULL THEN [NewID] ELSE ID END,
CASE WHEN Qty = 0 AND Rqty = 0 AND t.[NewID] IS NOT NULL THEN -1 ELSE coalesce([NewID],-1) END)
) x(GroupingID, GroupingNewID)
GROUP BY Name,x.GroupingID,x.GroupingNewID
ORDER BY Name,max(t.ID);