Can a Parameter Be Referenced in Multiple Datasets?

Hi Supp85 - Yes, you can re-use the same parameter between datasets.

Can a parameter be referenced in multiple datasets SSRS?

If you are referring to a paginated RDL report, yes. You would need to use cascading parameters, bound to different datasets.

Can a dataset be attached to a parameter?

Expand the Datasets node, right-click on the dataset that the parameters are to be bound to, and select Dataset Properties . Select the Parameters option in the Dataset Properties dialog, then add each parameter name from your query and match it to the appropriate report parameter (as set up in the previous step).