If you have a database, you more than likely want to query it and present the data. Right? Well,the choice of many is to go for Crystal Reports. This is great for doing the simple things with little hastle at all and also doing the really complicated stuff without too much referring to a help manual either.
But what happens when you find that you have created dozens of them in your development environment and now need to move this to production? I had this trouble and started on the manual process of using the “Set Datasource Location…”, but why do the same action multiple times, because remember that you will have to do the same in reverse when you want to go back to developing. So I thought lets do this at run-time.
Taylor's Tutorials 