At the User Group meeting on Weds 13th April we had a question that I said I'd follow up on - it was about Cross Data Source Filters.
I confirmed it is possible to do this in Tableau already and these links will help to explain how:
One of my colleagues also said this:
The answer isn’t quite yes or no, it depends on the scenario. You can filter across both data sources if you’ve linked on the common field, but as soon as you remove the blend key than it doesn’t work.
I also learned that this is one of the features that is being improved in Tableau 10 – see here:
This is the method I have been using by creating parameter controls but it only really works as a single filter.
Looking forward to trying multiple dataset filters in Tableau 10.
Thanks for your help