no total value using calculation in ssas

Question

im using a calculated member to subtract special values from measures of special attributes.

In pseudo code it shoud work like this:

CASE Attribute  
WHEN (Attribute = A) THEN Measure_of_A - 14
WHEN (Attribute = B) THEN Measure_of_B - 2
ELSE 5

I tried this in MDX within a calculated Member

CASE [D Software].[Dim Software].CURRENTMEMBER

 WHEN [D Software].[Dim Software].[Feature Desc].&[A]&[AAA]
  THEN ([D Software].[Dim Software].[Feature Desc].&[A]&[AAA],[Measures].[Status6]) - 14

 WHEN [D Software].[Dim Software].[Feature Desc].&[B]&[BBB] 
  THEN ( [D Software].[Dim Software].[Feature Desc].&[BBB]&[B],[Measures].[Status6]) - 2   

ELSE '5'
END

IT works fine, however the aggregated value of total is always wrong. There I get a result looking like this:

Attribute Value

AA -14

Total_AA 5

BB -2

Total_BB 5

Grand_Total 5

Has someone an advice for me ? Where is my failure ? Why is there no correct aggregation of the values ?

nhrobin nhrobin · Accepted Answer · 2013-07-04T18:15:57

Calculation of calculated member is executed after cube do all the aggregation. You need to define aggregation explicitly in the calculation for total e.g.

CASE [D Software].[Dim Software].CURRENTMEMBER

 WHEN [D Software].[Dim Software].[Feature Desc].&[A]&[AAA]
  THEN ([D Software].[Dim Software].[Feature Desc].&[A]&[AAA],[Measures].[Status6]) - 14

 WHEN [D Software].[Dim Software].[Feature Desc].&[B]&[BBB] 
  THEN ( [D Software].[Dim Software].[Feature Desc].&[BBB]&[B],[Measures].[Status6]) - 2   

  WHEN [D Software].[Dim Software].[Feature Desc].&[A] 
  THEN sum( [D Software].[Dim Software].[Feature Desc].&[A].children,[Measures].[Status6])

  WHEN [D Software].[Dim Software].[Feature Desc].&[B] 
  THEN sum( [D Software].[Dim Software].[Feature Desc].&[B].children,[Measures].[Status6])

  WHEN [D Software].[Dim Software].[Feature Desc].[All] 
  THEN sum( [D Software].[Dim Software].[Feature Desc].[All].children,[Measures].[Status6])

ELSE '5'

END

Writing aggregation logic in MDX calculated member this way is not maintable. You should use scope to handle this kind of logic.

no total value using calculation in ssas

1 Answers