title: What is the difference between connections and data sources in Tableau?
body: <p>I have two excel workbooks each with one sheet of data. I want to create visualizations by blending data. First, I tried to import both workbooks using add connection option within single data source. Later, I tried to import one workbook into one data source and added a new data source to import another workbook. I was able to create the visualizations I want in both approaches. But is there any difference between the two approaches?</p>