## Basic Set Functions: The BottomCount() Function, Part I - Page 2October 6, 2008
Let’s assume, for our practice example, that we have
received a call from our client, the To be specific, a group of
information consumers within the We discuss the details of the need with our colleagues, and set about demonstrating an approach to meeting those needs, as we take the following steps. 1.
Type the
following query into the -- MDX071-1 Simple use of BottomCount(): -- "Bottom Four 2004 Sales Producers" SELECT {[Measures].[Internet Sales Amount]} ON AXIS(0), {BOTTOMCOUNT( [Product].[Product Categories].[Subcategory]. [Tires and Tubes].CHILDREN, 4, [Measures].[Internet Sales Amount])} ON AXIS(1) FROM [Adventure Works] WHERE ([Date].[Calendar].[Calendar Year].&[2004]) The [Product].[Product Categories].[Subcategory].[Tires and Tubes].CHILDREN as the 2.
Execute the
query by clicking the The
As we expected, the bottom four performers within the As is the case with many MDX functions, 3.
Select 4. Leave the query open for the next section. We provide the Planning and Budgets operatives with the
simple “bottom four performers” data we have generated, and they express
satisfaction with our having met the initial requirement. After giving the matter
some thought, they tell us that we might add a couple more data elements to the
query to make it support the full blown report that they had been considering
when making their initial request. They tell us that they need to add the 5.
Within the
query we have saved as -- MDX071-2, "Bottom Four 2004 Sales Producers" with Internet Order Qty -- Measure, Gross Profit and GP Margin Calculated Members 6.
Save the query
as 7.
Modify the {[Measures].[Internet Sales Amount], [Measures].[Internet Order Quantity], [Measures].[Internet Gross Profit], [Measures].[Internet Gross Profit Margin]} ON AXIS(0), 8. Leave the remainder of the query in its original state. The
9.
Execute the
query by clicking the The
We note that, although the order of the “bottom four” has
not changed (the 10.
Re-save the
file as 11. Leave the query open for the next step. We again present the results to the information consumers,
who are quite happy with the outcome. At this point, we propose to extend the
requirement once again, and to modify the query to return the bottom four
performers within the We have only to make one simple change to the function to
deliver this additional perspective. We will do so, and further confirm our
understanding of the operation of the modified 12.
Within the
query we have saved as -- MDX071-3, "Bottom Four 2004 Sales Producers" with Internet Order Qty -- Measure, Gross Profit and GP Margin Calculated Members; -- Internet Order Qty Measure as Key 13.
Save the query
as 14.
Replace The {BOTTOMCOUNT( [Product].[Product Categories].[Subcategory].[Tires and Tubes].CHILDREN, 4,[Measures].[Internet Order Quantity])} ON AXIS(1)
15.
Execute the
query by clicking the The
It quickly becomes obvious that we have derived a new view
of the business, indeed, with this small modification. The operation of the This revelation is welcomed by the information consumers,
who can now enhance their analysis capabilities by taking into consideration Our client colleagues express satisfaction with the results,
and confirm their understanding of the operation of the 16.
Re-save the
file as 17.
Select ## Summary ...This
article served as the first of a pair of articles surrounding the potentially
powerful We next
undertook exercises where we practiced using the function in meeting the
business requirements of a hypothetical group of information consumers. We
focused on a simple use of the function, to allow for minimal distraction while
grounding ourselves in the basics. We then provided a straightforward, yet
meaningful, example of how we might leverage our core query (with the addition
of another
Discuss this article in the MSSQL Server 2000 Analysis Services and MDX Topics Forum. MDX Essentials Series
The LEVEL_NUMBER Member Property
The LEVEL_UNIQUE_NAME Intrinsic Member Property Intrinsic Member Properties: The HIERARCHY_UNIQUE_NAME Property Intrinsic Member Properties: The DIMENSION_UNIQUE_NAME Property Further Combination of BottomCount() with Other MDX Functions Combine BottomCount() with Other MDX Functions to Add Sophistication Basic Set Functions: The BottomCount() Function, Part I Intrinsic Member Properties: The MEMBER_VALUE Property Intrinsic Member Properties: The MEMBER_UNIQUE_NAME Property Intrinsic Member Properties: The MEMBER_NAME Property Intrinsic Member Properties: The MEMBER_KEY Property Intrinsic Member Properties: The MEMBER_CAPTION Property Set Functions: The StripCalculatedMembers() Function Set Functions: The AddCalculatedMembers() Function MDX Numeric Functions: The Min() Function MDX Numeric Functions: The Max() Function Set Functions: The .AllMembers Function MDX Essentials: Set Functions: The MeasureGroupMeasures() Function String Functions: The .Properties Function, Part II String Functions: The .Properties Function Logical Functions: IsGeneration(): Conditional Logic within Filter Expressions MDX Scripting Statements: Introducing the Simple CASE Statement Logical Functions: IsGeneration(): Conditional Logic within Calculations Logical Functions: IsAncestor(): Conditional Logic within Filter Expressions MDX Clauses and Keywords: Use HAVING to Filter an Axis Logical Functions: IsAncestor(): Conditional Logic within Calculations Logical Functions: IsSibling(): Conditional Logic within Filter Expressions Logical Functions: IsSibling(): Conditional Logic within Calculations MDX Operators: The IsLeaf() Operator: Conditional Logic within Filter Expressions MDX Operators: The IsLeaf() Operator: Conditional Logic within Calculations MDX Numeric Functions: The .Ordinal Function Other MDX Entities: Perspectives MDX Operators: The IS Operator MDX Set Functions: The Distinct() Function MDX Set Functions: The ToggleDrillState() Function Set Functions: The DrillUpLevel() Function Set Functions: The DrillDownLevelTop() and DrillDownLevelBottom() Functions MDX Set Functions: DrillDownLevel() MDX Set Functions: The DRILLUPMEMBER() Function MDX Essentials: Set Functions: The DRILLDOWNMEMBERTOP() and DRILLDOWNMEMBERBOTTOM() Functions MDX Essentials : Set Functions: The DRILLDOWNMEMBER() Function MDX Essentials: Drilling Through with MDX: The DRILLTHROUGH Statement MDX Essentials: String Functions: The .UniqueName Function MDX Essentials: String Functions: The .Name Function MDX Essentials: String / Numeric Functions: The CoalesceEmpty() Function MDX Essentials: Basic Set Functions: The TopCount() Function, Part II MDX Essentials: Basic Set Functions: The TopCount() Function, Part I MDX Essentials: Enhancing CROSSJOIN() with Calculated Members MDX Essentials: Set and String Functions: The GENERATE() Function MDX Essentials: The CROSSJOIN() Function: Breaking Bottlenecks MDX Essentials: String / Numeric Functions: More on the IIF() Function MDX Essentials: String / Numeric Functions: Introducing the IIF() Function MDX Essentials: Logical Functions: The IsEmpty() Function MDX Essentials: Basic Set Functions: The EXTRACT() Function MDX Essentials: Numeric Functions: Introduction to the AVG() Function MDX Essentials: Basic Member Functions: The .Item() Function MDX Essentials: Basic Set Functions: Subset Functions: The Subset() Function MDX Essentials: Basic Set Functions: Subset Functions: The Tail() Function MDX Essentials: Basic Set Functions: Subset Functions: The Head() Function MDX Essentials: Basic Set Functions: The CrossJoin() Function MDX Essentials: Basic Numeric Functions: The Count() Function MDX Essentials: Basic Set Functions: The Filter() Function MDX Essentials: Basic Set Functions: The EXCEPT() Function MDX Essentials: Basic Set Functions: The Intersect() Function MDX Essentials: Basic Set Functions: The Union() Function MDX Essentials: Basic Set Functions: The Order() Function MDX Essentials - MDX Time Series Functions, Part III: The LastPeriods() and ParallelPeriod() Functions MDX Time Series Functions, Part II: The OpeningPeriod () and ClosingPeriod() Functions MDX Essentials - MDX Time Series Functions, Part I: PeriodsToDate() and Kindred Functions MDX Essentials: MDX Member Functions: "Relative" Member Functions MDX Member Functions: The Cousin () Function MDX Essentials: Member Functions: More "Family" Functions MDX Member Functions: The "Family" Functions MDX Essentials: MDX Members: Introducing Members and Member MDX Essentials : MDX Operators: The Basics MDX Essentials: Structure of the MDX Data Model MDX at First Glance: Introduction to SQL Server MDX Essentials |