问题
I have been banging my head against a wall for the better part of two days now...
My scenario is this:
I have a recordset I have divvied up into 4 groups in an SSRS table. They are:
StartPeriod
--> Area
--> Job#
--> Details
The column in question is one that contains two different record counts. One is the # of records with an error, and the other is the total number of records for this group (so that I can run a percentage).
For example:
At the details level I might have an item with 4 errors, and an item with 6 and there are a total of 20 records. This means that the total # of records is repeating, which means I cannot sum this number or I will double count my total # of records.
StartPeriod - Area - Job# - Item - Errors - totalRecords
January - 123 - Job3 - item1 - 4 - 20
January - 123 - Job3 - item2 - 6 - 20
I can get around this at the Job# level because I can simply say Max(num_records) to get the correct number....however if I want to aggregate up to the Area level (or above) I can't get things to work. I can't do SUM( Max(num_records) ) because that makes no sense, and however I arrange the query in SQL it doesn't add up either.
I feel like this is a fairly common problem, so I am not sure why I am having so much trouble. Any ideas how I can solve this? I hope I am explaining myself clearly.
PS. I am using SSRS 2008R2
回答1:
Make better use of groups, the data already exists in your query.
CountRows("Details")
Sum(Errors, "Details")
This is assuming the group you've created at the details level is called "Details".
回答2:
Try something like this for your query:
declare @totcount int
select @totcount = sum(errors) from your_table
select errors, errors/@totcount as [% of total] from your_table
as for the area:
declare @totcount int
select @totcount = sum(errors) from your_table
select area, sum(errors)/@totcount as [% of total]
from your_table
group by area
来源：https://stackoverflow.com/questions/17954789/ssrs-aggregating-aggregates