January 6, 2013 at 6:27 pm
I have a matrix reporting data by week by location. The matrix works great for this. The challenge, however, is I want to take my total from the matrix and provide a 3 month average - easy enough to do with another matrix. Then i need to take the last weeks data (matrix 1) compare it to the 3 month average (matrix 2) and calculate a variance. Then show the max value from the 3 months and calculate a variance against the last weeks data.
for example
location A location B location C
Week 1 100 300 350
Week 2 550 350 700
Week 3 250 550 450
Total 900 1200 1500
Weekly Avg 300 400 500
Last Week Var -50 150 200
Max 550 550 700
Variance -54% 0% -35%
Any suggestions on how to accomplish the bottom calculations when you can't use fields from various matrices in a report?
Thanks in advance.
January 6, 2013 at 11:12 pm
Name the cells so they are easy to remember e.g. MonthTotal and then refer to those cells directly in an expression:
=ReportItems!MonthTotal.value
January 7, 2013 at 12:49 pm
I have tried that but a matrix doesn't allow it. I get the following error message - "Report item expressions can only refer to to other report items within the same grouping scope or a containing grouping scope."
January 7, 2013 at 3:18 pm
You can use multiple groups in the same tablix that aren't nested within each other. That way your 3 month average doesn't need to be in a second tablix.
You can also add totals or variances in cells that are outside any grouping at all yet still within the same tablix.
January 8, 2013 at 9:28 am
Excuse my ignorance, but does this work in SQL 2005? If so how do i add another line in my matrix below the total line to to the calcualtions.
Thanks in advance.
January 8, 2013 at 4:53 pm
My apologies I didn't see that it was for BIDS 2005. I've logged on to one of my old SQL Server 2005 machines and luckily it had BIDS 2005 installed on it so I could try.
Wow I forget how painfully bad that version was. The jump to 2008 is light years ahead. I can't work out how to do what I was suggesting in 2005, I'm sorry.
You may have to do something in the SQL to make it work, like make use of pivot/unpivot and cube/rollup.
January 8, 2013 at 6:54 pm
Thanks for checking. I ended up creating a summary table in sql and will populate summary data there for calculations and then report.
I appreciate the time and effort.
January 8, 2013 at 8:06 pm
I think that you've done it the best way possible with 2005.
July 3, 2015 at 2:02 am
dpelan (1/6/2013)
I have a matrix reporting data by week by location. The matrix works great for this. The challenge, however, is I want to take my total from the matrix and provide a 3 month average - easy enough to do with another matrix. Then i need to take the last weeks data (matrix 1) compare it to the 3 month average (matrix 2) and calculate a variance. Then show the max value from the 3 months and calculate a variance against the last weeks data.for example
location A location B location C
Week 1 100 300 350
Week 2 550 350 700
Week 3 250 550 450
Total 900 1200 1500
Weekly Avg 300 400 500
Last Week Var -50 150 200
Max 550 550 700
Variance -54% 0% -35%
Any suggestions on how to accomplish the bottom calculations when you can't use fields from various matrices in a report?
Thanks in advance.
You can have a look at:
https://technet.microsoft.com/en-us/library/ms157334%28v=sql.100%29.aspx
https://www.simple-talk.com/sql/reporting-services/advanced-matrix-reporting-techniques/
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