By Poulami Chakraborty When I started learning Tableau, "join", "relationship", "blend" and "union" all sounded like different names for the same thing. Reading definitions only took me so far, so I learned them the way I learn most things: by trying each one on data where I already know the right answer. Tableau will give you a number whichever method you pick, so the real skill is checking whether that number is correct. So I built a tiny dataset and tried all four methods

This article talks about the multiple ways (Relationships, Joins, and Blends) provided by Tableau to combine data from source(s)...