Trying to Get Running Total to Work - sql

Question

I have a query that works perfectly for combining ElapsedTime that is considered Non-Productive when NonProductive = 1. However, I have been trying to get a running total to work. This the main query that totals by ReportNo for each day:
Select SUM(CASE
When NonProductive = 1 Then ElapsedTime
Else 0
End)
From DailyOperations
Where (DailyOperations.WellID = 'ZCQ-5') AND (DailyOperations.JobID = 'Original') and (ReportNo = 9)
ReportNo = 9 is the first Reportno that has NonProductive time which is 4. The next is ReportNo = 14. It has 5.5 hours of NonProductive time. So when I run ReportNo 14 I am hoping to see a total of 9.5 and nothing else. Below is the query that I am using for my running total but it is listing all of the Non-Productive time. So Instead of getting just 9.5 for ReportNo 14 I am also getting a running total for each instance of NonProductive time in the report:
SELECT (ElapsedTime),(Reportno),NonProductive,
SUM(ElapsedTime) OVER (PARTITION BY NonProductive ORDER BY REPORTNO ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
AS RUNNINGTOTAL
FROM dbo.DailyOperations
WHERE (NonProductive IN(1)) and (WellID = 'ZCQ-5') AND (JobID = 'Original')
Group by ReportNo,ElapsedTime,NonProductive
Order by ReportNo
This gives me:
ReportNo RUNNINGTOTAL
9 4
14 6
14 9.5
What I want is:
ReportNo RUNNINGTOTAL
9 4
14 9.5

Answer 1

I think you want:
SELECT Reportno,NonProductive,
SUM(SUM(ElapsedTime)) OVER (PARTITION BY NonProductive ORDER BY REPORTNO) AS RUNNINGTOTAL
FROM dbo.DailyOperations o
WHERE NonProductive IN (1) and WellID = 'ZCQ-5' AND JobID = 'Original')
GROUP BY ReportNo
ORDER BY ReportNo;
Notes:
The GROUP BY defines each row that you want in the result set. Hence, you only want ReportNo in it.
When combining window functions and aggregation functions, you sometimes end up with strange looking constructs such as SUM(SUM()).
The windowing clause is unnecessary. What you have is basically the default when you use ORDER BY (actually, the default is RANGE BETWEEN, but ReportId is unique so the two are equivalent).