Filtering Data in a Report
You can limit the data retrieved from a data source by using filters or query parameters. The method you choose depends on the capabilities of the data source, performance requirements, persistence of the dataset, and how complex you want the report to be.
You can apply filters to a dataset, data region, or data grouping. Filters limit the data that is displayed to the user after the data is retrieved from the data source. You can use filters when the data source does not support query parameters or when persisted reports, such as snapshots, are run by users who view different sets of the data. The report data is saved to the report server so that any number of users can set report parameters to filter the stored data for the information they want to see in the report.
Because of the amount of data saved and then filtered on the report server, the report may not perform as well as a report that filters data at the source using query parameters.
To view instructions about working with filters, see:
To filter data at the source, use query parameters. Report Designer will attempt to detect any query parameters and automatically create report parameters that supply the query parameters with data. You can also manually associate query parameters with report variables through the Parameters tab of the Dataset dialog box.
To view instructions about associating query parameters with values on the report, see:
Not all data sources support query parameters. In this case, you may want to use a filter.