Diego Parker's Post: http://j.mp/3aWVooaIn this last video of the series, I walk you through how unions and joins work in Tableau Prep builder. In excel this would typically be a manual operation leaving you to human error if you incorrectly configure a V lookup or incorrectly union two data sets. Tableau prep gives you a fast easy and safe way to make sure the relationships in your data make sense and it makes it easy to spot scenarios where your matches don't work the way they should. -----Join my Discord Server. https://discord.gg/shBuxXr it's a little sparse at the moment but hang in there.
