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Need simple MDX help

Need simple MDX help

(OP)
I am attending a 3 day MDX course next week, and MDX is not totally foreign to me, but I ned some help in the creation of a KPI.

We have a cube which shows a distinct count of Claim Numbers, to show how many claims applied at a certain slice and dice (lets say by Transaction Date YYYY-MM). What is the basic MDFX sybntax for Claim Count the previous month, vs Claim count the same time last year?

EO
Hertfordshire, England

RE: Need simple MDX help

(OP)
I will articulate this a bit better. I am using SSAS2005 btw.

My data looks like this:

YearNo QuarterNo MonthNo ClaimCount MDXMeasure
2007     2007Q1    200701    100           100
2007     2007Q1    200702    10             110
2007     2007Q1    200703    20             130
2007     2007Q2    200704    15             145
...
2008     2008Q1    200801    90             90
2008     2008Q1    200802    60             150
2008     2008Q1    200803    210           360
2008     2008Q2    200804    10             370

The MDX expression for the MDXMeasure is currently a simple YTD Expression

CODE

Sum(YTD([Date Transaction]),[Measures].[ClaimCount])

But what I would like to show, and this expression is destined to form the basis of a KPI within SSAS 2005 is to compare (for example the YTD position of the previous month, thus 200807) with its counterpart the previous year (thus 200707).

Can this be done?

EO
Hertfordshire, England

RE: Need simple MDX help

(OP)
I have found this expression that I thought would help, but before I tried to combine it with a YTD expression (such as the one in the previous example) I thought look at it in its bare format...

CODE

([Date Transaction],[Measures].[ClaimCount])-
(ParallelPeriod(Year,1,[Date Transaction]),[Measures].[ClaimCount])
...but this gives only a #VALUE! result.

Any ideas?

EO
Hertfordshire, England

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