Similar Reports

Hi,We have many reports running that are very similar. Usually 1 column difference for exampleSales by ProductSales by MonthSales by CountryWe don't have a data warehouse but is there any way we can use SQL to combined these three datasets efficiently but perhaps through parameters only run the chosen report?I thought about union everything together but I think this might be inefficient and was hoping someone would have a better idea.Many thanksEliza