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Understanding MDX with BSO and ASO

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MDX Introduction

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MDX Introduction Multidimensional Expressions (MDX) lets you query multidimensional objects, such as cubes, and return multidimensional cell sets that contain the cube's data. In MDX, the SELECT statement specifies a result set that contains a subset of multidimensional data that has been returned from a cube. To specify a result set, an MDX query must contain the following information: The number of axes or sets of hierarchies. You can specify up to 64(0-63) axes in an MDX query. The from each dimension to include on each axis of the MDX query. The name of the cube that sets the context of the MDX query. The from a slicer axis on which data is sliced for from the query axes. For more information about slicer and query axes.

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MDX Introduction

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Examples

Simple Select SELECT {Jan} ON COLUMNS FROM Sample.Basic Simple Select SELECT {([100-10], [Actual])} ON COLUMNS FROM Sample.Basic mailto : [email protected] for all Hyperion video tutorial/Training/Certification/Material

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ntroduction to Sets and Tuples A tuple is a way to refer to a member or a member combination from any number of dimensions. For example, in the Sample Basic database, Jan is a tuple, and so is (Jan, Sales), and so is ([Jan],[Sales],[Cola],[Utah],[Actual]).

et is an ordered collection of one or more tuples that have the same dimensional In MDX Queries we specify AXIS to specify Data Access Layout ON COLUMNS can be used in place of AXIS(0) ON ROWS may replace AXIS(1) ON PAGES may replace AXIS(2) ON CHAPTERS may replace AXIS(3) ON SECTIONS may replace AXIS(4)

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Examples

Select with Column and Row Axis SELECT {[100-10],[100-20]} ON COLUMNS, {[Qtr1],[Qtr2],[Qtr3],[Qtr4]} ON ROWS FROM Sample.Basic Specify Tuple And Sets SELECT {([100-10],[East]), ([100-20],[East])} ON COLUMNS, { ([Qtr1],[Profit]), ([Qtr2],[Profit]), ([Qtr3],[Profit]), ([Qtr4],[Profit]) } ON ROWS FROM Sample.Basic

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MDX Introduction

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SELECT {([100-10], [Actual])} ON COLUMNS FROM Sample.Basic

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Specify Member Range SELECT {([100-10],[East]), ([100-20],[East])} ON COLUMNS, { Cross ({[Profit]},{[Qtr1],[Qtr2],[Qtr3],[Qtr4]}) } ON ROWS FROM Sample.Basic

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Specify Member Range SELECT SELECT MemberRange([Qtr1],[Qtr4]) [Qtr1]:[Qtr4]ON COLUMNS ON COLUMNS FROM Sample.Basic FROM Sample.Basic Attribute Dimension SELECT {[Year].Children} ON COLUMNS, Attribute ([Ounces_12]) ON ROWS FROM Sample.Basic

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Performing Set Operations SELECT {[Measures].[Sales], [Measures].[Profit]} ON COLUMNS, Except( [Market].Levels(0)., UDA (Market, "Major Market") ) ON ROWS WHERE {([Year].[Qtr1], [Scenario].[Actual]) SELECT Cross ({[100-10]}, {[East],[West],[South],[Central]}) ON COLUMNS, Cross ( {[Sales],[COGS],[Margin %],[Profit %]}, {[Qtr1]} ) ON ROWS FROM Sample.Basic

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Level/Generation Generation SELECT (Market.levels(0))ON COLUMNS FROM Sample.Basic

SELECT [Year]. [Qtr1].Generation. ON COLUMNS, [Product].Generations(2).Mem bers ON ROWS FROM Sample.Basic

Filtering Using Slice SELECT Cross ({[100-10]}, {[East],[West],[South],[Central]}) ON COLUMNS, Cross ( {[Sales],[COGS],[Margin %],[Profit %]}, {[Qtr1]} ) ON ROWS FROM Sample.Basic WHERE (Budget)

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Filtering Data SELECT { Profit } ON COLUMNS, Filter( [Product].levels(0)., Profit < 0) ON ROWS FROM Sample.Basic Aggregation Queries WITH MEMBER [Measures].[Max Qtr2 Sales] AS ' Max ( {[Year].[Qtr2]}, [Measures].[Sales] )' SELECT {[Measures].[Max Qtr2 Sales]} ON COLUMNS, {[Product].children} ON ROWS FROM Sample.Basic

WITH SET [Best5Prods] AS 'Topcount ( [Product]., 5, ([Measures].[Sales], [Scenario]. [Actual], [Year].[Dec]) )' SELECT [Best5Prods] ON AXIS(0), {[Year].[Dec]} ON AXIS(1) FROM Sample.Basic

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Member Functions

SELECT Filter([Market]., IsChild([Market].CurrentMember, [East]) ) ON COLUMNS FROM Sample.Basic Conditional Access "IFF"

SELECT {Parent ([100-10])} ON COLUMNS FROM sample.basic

WITH MEMBER [Scenario].[Revised Budget] AS 'IIF ( [Product].CurrentMember.Caffeinated, Budget * 1.1, Budget )' SELECT {[Scenario].[Budget], [Scenario].[Revised Budget]} ON COLUMNS, [Product].Levels(0). ON ROWS FROM Sample.Basic WHERE ([Measures].[Sales], [Year].[Qtr3])

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Questions

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