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MDX Error handling Cheat Sheet

Contributors: Vidas Matelis, Thomas Ivarsson

MDX Error handling Cheat Sheet

How do I check for division by zero and null to avoid -1.#INF in cells?
WITH MEMBER [Measures].[ZeroValuePerUnit] AS 0MEMBER [Measures].[DivideByZero] As [Measures].[Internet Sales Amount]/[Measures].[ZeroValuePerUnit] ,Format_String = '#.#0'MEMBER [Measures].[CheckDivByZero] AS IIF([Measures].[ZeroValuePerUnit] = 0, Null,  [Measures].[Internet Sales Amount]/[Measures].[ZeroValuePerUnit]),Format_String = '#.#0'SELECT {[Measures].[Internet Sales Amount], [Measures].[ZeroValuePerUnit], [Measures].[DivideByZero], [Measures].[CheckDivByZero]} ON COLUMNS, [Customer].[Country].Children ON ROWSFROM [Adventure Works]WHERE([Date].[Calendar].[Calendar Year].&[2004]);
How do I check for the top level in a dimension to avoid division by an nonexsting parent(-1.#INF)?
  Member Measures.ParentRatio As IIF([Product].[Product Categories].CurrentMember.Parent IS NULL, Null, [Measures].[Internet Sales Amount]/([Measures].[Internet Sales Amount],[Product].[Product Categories].CurrentMember.Parent)), Format_String = '###.#%'Select {[Measures].[Internet Sales Amount],Measures.ParentRatio} On Columns, NON EMPTY Descendants([Product].[Product Categories],[Product].[Product Categories].[Subcategory],Self_And_Before) On Rows From [Adventure Works]Where [Date].[Calendar].[Calendar Year].&[2003];
How can I reference dimension members/measures in MDX statements when sometimes they might not exists?
WITH MEMBER [Measures].[2007 Sales] AS IIF(IsError([Date].[Calendar].[Calendar Year].&[2007]), NULL, ([Date].[Calendar].[Calendar Year].&[2007], [Measures].[Sales Amount]))SELECT [Measures].[2007 Sales] ON 0FROM [Sales Summary];

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