Intrinsic Member Properties: The MEMBER_VALUE Property - Page 6

September 12, 2008

Overview: Extending the Solution to the Reporting Layer

We will not take the steps, within this article (which occur inside the reporting layer), to construct the picklist apparatus. However, let’s take a look at one approach to assembling the parts in Reporting Services (or, similarly, in another OLAP reporting application). First, we would transfer the query to Reporting Services’ own Data tab to generate a dataset within the report under consideration. This query, together with the dataset it generates, would look something similar to that which is depicted in Illustration 21.

Illustration 21:  Constructing a Dataset in Reporting Services to Support a Parameter Picklist
Illustration 21: Constructing a Dataset in Reporting Services to Support a Parameter Picklist

NOTE: This is only one approach to creating the dataset – perhaps the more obvious of several. Another might be more optimal, depending upon the reporting environment under consideration. Other options, the components of which might occupy different layers of the Microsoft integrated business intelligence solution, might include installation of the calculated members at the cube level, and then calling (versus defining and building) them from the reporting layer.

For a step-by-step procedure that demonstrates the construction of such a cube-based solution to support a picklist in Reporting Services, see Create a Cube-Based Hierarchical Picklist in my MDX in Analysis Services series, or Parameterization from Analysis Services – Cascading Picklists in my MSSQL Server Reporting Services series, both here at Database Journal.

Once we have created the dataset, the next step is to add a parameter to the report. Inside the Report Parameter definition, we would reference the new dataset (in the example I created for my illustrations (I named it PostalCode_Param), and then select Customer_Postal_Code__MDX_Qual_Name and Customer_Postal_Code__Postal_Code within the Value and Label fields respectively. Illustration 22 presents a view of the way all this would tie together in the Report Parameter dialog inside Reporting Services.

Illustration 22:  Pulling It All Together inside the Report Parameter ...
Illustration 22: Pulling It All Together inside the Report Parameter ...

At this point all that remains is to return to the primary dataset underneath the report and to insert the parameter variable within an axis specification or a slicer, where it acts as a filter (there are examples of this, and all other steps, in the Reporting Services articles I have cited above). Executing the query then triggers the “prompting” action of the new Postal Code parameter.

The selection list, displaying the regular Postal Code value, is manifested in the parameter dropdown when we preview or execute the report, as partially shown in Illustration 23.

Illustration 23:  The Postal Code Parameter Selector in Action ...
Illustration 23: The Postal Code Parameter Selector in Action ...

And so we see that our query, using the MEMBER_VALUE and MEMBER_UNIQUE_NAME intrinsic member properties - in conjunction with the “relative” .CurrentMember function - to present the Postal Code values and Unique Names for Customers in two side-by-side columns, can be readily used to support a picklist for a parameter within the reporting layer of the business intelligence solution of our client. Having demonstrated the workings of the MEMBER_VALUE and MEMBER_UNIQUE_NAME properties in this fashion has helped us to show our client colleagues that we have, within the current dataset query, established support for parameterization based upon underlying cube data.

Our client colleagues express satisfaction with the results, and confirm their understanding of the operation of the MEMBER_VALUE property within the contexts we have presented in the practice exercises. We reiterate to the Reporting team that knowing “where to put the intelligence” within the various layers of the Microsoft integrated BI solution can mean highly tuned performance and effective solutions for consumers throughout our organizations.

6.  Select File -> Exit to leave the SQL Server Management Studio, when ready.

Summary ...

In this article, we introduced the MDX MEMBER_VALUE property, which can be called upon in activities that range from generating simple lists to supporting parameters in the reporting layer, as well as more sophisticated uses. We introduced the function, commenting upon its operation and touching upon the datasets we can deliver using MEMBER_ VALUE.

We examined the syntax involved with MEMBER_VALUE, and then, after preparing the sample database to support our training needs, undertook a couple of illustrative practice examples of business uses for the function, generating queries that capitalized on its primary features. Our exercises included examples that drew upon our earlier examinations of the MEMBER_NAME (in Intrinsic Member Properties: The MEMBER_NAME Property) and MEMBER_UNIQUE_NAME (in Intrinsic Member Properties: The MEMBER_UNIQUE_NAME Property ) properties, which we used in combination with other MDX functions to create a results dataset. We then illustrated the use of a similar dataset to support a parameter picklist in a report that queried an Analysis Services data source. Throughout our practice session, we briefly discussed the results datasets we obtained from each of the queries we constructed.

» See All Articles by Columnist William E. Pearson, III

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








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