问题
I am currently working with an SSRS 2008 report that returns a dataset similar to the following:
Job# ClientId MoneyIn MoneyOut
------------------------------
1 ABC123 10 25
1 ABC123 10 25
1 ABC123 5 25
2 XYZ123 25 50
2 XYZ123 25 50
3 XYZ123 15 15
Where MoneyOut should be equal to the total amount of MoneyIn for a job if the job has been balanced out correctly.
The problem that I am running into is when displaying this in a tablix in SSRS I can return the correct MoneyOut value for a job by setting the field to =first(Fields!MoneyOut.Value) but I also need to sum the value of these by day and attempting to do =sum(first(Fields!MoneyOut.Value)) yields an error about nesting aggregate functions.
I've also attempted to sum the value of the textboxes using something like =sum(ReportItems!MoneyOut1.Value) which yields an error that you can only use aggregates on report items in the header or footer.
So my question is, is there some way to duplicate the functionality of distinct() in SSRS reports or is there some way to just total up the values of text fields that I am unaware of?
回答1:
Why do you need an equivalent of the SUM(DISTINCT ...) function when you have it in SQL Server?
Sounds like you need to change the query supplying the data to your report, rather than trying to do it in the report itself.
回答2:
if I understand your question truely, you must use group for grouping data and sum your favorite data in each group.
来源：https://stackoverflow.com/questions/2539438/ssrs-sumdistinct-equivalent