Results of calculating with Sum (expression) give a wrong number in SSRS

问题

I have a column which should calculate some numbers and sometimes it gives me the correct sum and sometimes it doesn't. I don't know why! Can someone please point me in the right direction?

I used this expression:

=Sum(Fields!TotalEmployees.Value)

When I don't choose something from filters on the top , it will give me the correct sum:

And when I choose something from the filters on the top, for example between 2 dates, it will give me wrong the sum:

Parameters & Body of report :

@EndDateFrom
@EndDateTo

回答1:

Yeah, you need to be wary of your grouping. I'm willing to bet you're stuck inside of a group which is filtering your results.

If you are using Report Builder 2016, you can right click your last row and select "Add Total". This will generally automatically generate a row that gets the sum of all fields in your group.

回答2:

i solved this issue with changing my query ,where all calculating (AVG , Sum &.. ) happens in query , instead reporting services do it for me .. after that i got the correct number:

SELECT t1.Departments, count(t1.id), avg(t1.age),sum(t1.TotalEmployees)/count(t1.id)
    AS TotalEmpl FROM (<current_query>) AS t1 <br> GROUP BY t1.Departments

来源：https://stackoverflow.com/questions/43001304/results-of-calculating-with-sum-expression-give-a-wrong-number-in-ssrs