Mastering Enterprise BI: Introduction to Perspectives - Page 4
August 7, 2006
Define a Data Source View
Having defined the Data Source within our Analysis Services Project, our next steps surround the creation of the Data Source View, a procedure that is customary at this stage in most Analysis Services Projects. The Data Source View provides a single, unified view of the metadata from the tables and views that concern us within our project.
NOTE: For more information on Data Source Views, see my article Introduction to MSSQL Server Analysis Services: Introducing Data Source Views at Database Journal.
To define a Data Source View, we will take the following steps:
1. Right-click Data Source Views folder within the Solution Explorer.
2. Select New Data Source View ...from the context menu that appears, as depicted in Illustration 15.
The Data Source View Wizard appears, opening with the Welcome to the Data Source View Wizard page, as shown in Illustration 16.
3. Click Next.
We arrive at the Select a Data Source page, where we see our Adventure Works DW Data Source in the Relational data sources list box on the left side of the page, as depicted in Illustration 17.
Our newly created Data Source is positioned as the default, and will serve us in meeting the objectives of our practice exercise.
4. Click Next.
Analysis Services scans the Adventure Works DW schema, and then we arrive at the Select Tables and Views page. Here we see the various tables of the Adventure Works DW data source appear in the Available objects list box on the left of the page. We will be selecting two fact tables, to allow us to house both sales and "budget" data within our cube.
5. Click FactInternetSales in the Available objects list to select it.
6. Click the button marked ">" to move FactInternetSales to the Included objects list on the right half of the page.
7. Click FactSalesQuota in the Available objects list to select it.
8. Click the button marked ">" to move FactSalesQuota to the Included objects list on the right half of the page.
The added tables appear within the Included objects list of Select Tables and Views page as shown in Illustration 18.
9. Click the newly added FactInternetSales table in the Included objects list to select it.
10. Click the Add Related Tables button, located underneath the Included objects list.
11. Click the newly added FactSalesQuota table in the Included objects list to select it.
12. Click the Add Related Tables button, located underneath the Included objects list.
Several related tables appear within the Included objects list, as depicted in Illustration 19.
13. Click Next.
The Completing the Wizard page appears, as shown in Illustration 20.
As indicated in the Completing the Wizard page, our selection includes the following tables:
14. Click Finish to create the new Data Source View, and to dismiss the Data Source View Wizard.
Our new Data Source View, Adventure Works DW, appears in the Data Source Views folder within the Solution Explorer window, as depicted in Illustration 21.
The Data Source View is also presented within the Data Source View Designer, which opens simultaneously with the Data Source View. The contents of the Designer appear within Business Intelligence Development Studio, as shown in Illustration 22.
One of several designers within the Studio, the Data Source View Designer for our new Data Source View contains numerous elements that aid us in our organization and design efforts. We can modify the composition of the tables that comprise our view, as well as performing other activities, here.
We will next create a cube based upon the Data Source and Data Source View we have assembled. As a part of this process, we will also set up, and at least partially align, Measure Groups.