Power Pivot Connection Type (SSRS)
You can use SQL Server Analysis Services data processing extension to retrieve data from a Power Pivot workbook that is published in a SharePoint Power Pivot Gallery.
Use the information in this topic to build a data source. For step-by-step instructions, see Add and Verify a Data Connection or Data Source (Report Builder and SSRS).
The Power Pivot data source must be published in a Power Pivot Gallery on a SharePoint site.
To support connections from Report Builder to a Power Pivot workbook, you must have SQL Server 2008 R2 ADOMD.NET on your workstation computer. This client library is installed with Power Pivot for Excel, but if you are using a computer that does not have this application, you must download and install ADOMD.NET from the SQL Server 2008 R2 Feature Pack.
Use report data source type Microsoft SQL Server Analysis Services.
The connection string is the URL to Power Pivot workbook published on SharePoint in the Power Pivot Gallery or other library, for example, http://contoso-srv/subsite/PowerPivotLibrary/ContosoSales.xlsx.
Specify the credentials that you need to access the Power Pivot workbook and SharePoint site, for example, Windows Authentication (Integrated Security). For more information, see Data Connections, Data Sources, and Connection Strings in Reporting Services or Specify Credentials in Report Builder.
After you connect to the Power Pivot data source, use the MDX graphical query to build a query by browsing and selecting from the underlying data structures. After you build a query, run the query to see sample data in the results pane.
The query designer analyzes the query to determine the dataset fields. You can also manually edit the dataset field collection in the Report Data pane. For more information, see Add, Edit, Refresh Fields in the Report Data Pane (Report Builder and SSRS).
In the Filters pane, specify dimensions and members to filter out or to include in the query results.
In the Filters pane, select the Parameters option for a filter to automatically create a report parameter with available values that correspond to the filter selections.
If you open Report Builder from the Power Pivot workbook in a Power Pivot Gallery, the PivotTables, PivotCharts, slicers, and other layout and analytical features from the Power Pivot workbook are not re-created in the report. Instead, the blank report includes a preconfigured data source that points to the data in the Power Pivot workbook. Designing reports based on a Power Pivot workbook can be labor-intensive and time-consuming depending on the number of slicers, filters, and tables or charts that you want to re-create in the report. A better approach is to envision the presentation of the data that you want in a report independently from the Power Pivot design.
The data in a Power Pivot workbook is highly compressed; data retrieved from the Power Pivot workbook for a report is not compressed. Use the query designer to specify filters and parameters to limit the data to just what is needed in the report.
Unlike connecting to an Analysis Services cube, a Power Pivot model has no hierarchies. To provide similar functionality to related slicers in the workbook, you must create cascading parameters in the report. For more information, see Add Cascading Parameters to a Report (Report Builder and SSRS).
In some cases, you might need to adjust expressions to accommodate the underlying data values from the Power Pivot model. You might need to modify expressions to convert data to the right data type or to add or remove an aggregate function. For example, to convert data type from String to Integer, use =CInt. Always verify that the report displays the expected values from the data in the Power Pivot model before you publish the report.
Preview images of a report in a Power Pivot Gallery are generated only if the following conditions are met:
The report and the Power Pivot workbook that provides the data must be stored together in the same Power Pivot Gallery.
The report contains only Power Pivot data from a Power Pivot data source.