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DistinctCount (MDX)

Returns the number of distinct, nonempty tuples in a set.

DistinctCount(Set_Expression)

Set_Expression

A valid Multidimensional Expressions (MDX) expression that returns a set.

The DistinctCount function is equivalent to Count(Distinct(Set_Expression), EXCLUDEEMPTY).

The following query shows how to use the DistinctCount function:

WITH SET MySet AS

{[Customer].[Customer Geography].[Country].&[Australia],[Customer].[Customer Geography].[Country].&[Australia],

[Customer].[Customer Geography].[Country].&[Canada],[Customer].[Customer Geography].[Country].&[France],

[Customer].[Customer Geography].[Country].&[United Kingdom],[Customer].[Customer Geography].[Country].&[United Kingdom]}

*

{([Date].[Calendar].[Date].&[20010701],[Measures].[Internet Sales Amount] )}

//Returns the value 3 because Internet Sales Amount is null

//for the UK on the date specified

MEMBER MEASURES.SETDISTINCTCOUNT AS

DISTINCTCOUNT(MySet)

SELECT {MEASURES.SETDISTINCTCOUNT} ON 0

FROM [Adventure Works]

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