Microsoft® SQL Server 2008 R2 Unleashed

Using Shared Datasets

New to SSRS 2008 R2, shared datasets further improve the decoupling of report data from reports. They also encourage reuse and accelerate report execution. A shared dataset is simply a dataset you define at design time that can then be reused by any number of reports. You may modify or delete a shared dataset independently of any reports or report parts that depend on it and vice versa. Using shared datasets prevents the need for re-creating the same dataset in multiple reports. Redundancy is the enemy of maintainable code, and using shared datasets prevents you from letting small differences in your underlying queries produce inconsistent results (something end users tend to intensely dislike).

Like regular datasets, shared ...