<= (Less Than or Equal To) (MDX)
Performs a comparison operation that determines whether the value of one Multidimensional Expressions (MDX) expression is less than or equal to the value of another MDX expression.
Syntax
MDX_Expression<=MDX_Expression
Parameters
- MDX_Expression
A valid MDX expression. 
Return Value
A Boolean value based on the following conditions:
true if both parameters are non-null, and the first parameter has a value that is either less than or equal to the value of the second parameter.
false if both parameters are non-null, and the first parameter has a value that greater than the value of the second parameter.
null if either or both parameters evaluate to a null value.
Examples
The following example demonstrates the use of this operator.
-- This query returns the gross profit margin (GPM)
-- for Australia where the GPM is less than or equal to 30%.
With Member [Measures].[LowGPM] as
  IIF(
      [Measures].[Gross Profit Margin] <= .5,
      [Measures].[Gross Profit Margin],
      null)
SELECT 
NON EMPTY [Sales Territory].[Sales Territory Country].[Australia] ON 0,
    NON EMPTY [Product].[Category].Members ON 1
FROM
    [Adventure Works]
WHERE
    ([Measures].[LowGPM])