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Tableau Joins And Blends Tutorial | When Should I Use Joins In Tableau

To get your FREE Tableau Beginner Training course, check out my website at: https://www.udemy.com/course/tableau-... ----------------------------------------------- To follow along with this tutorial, simply download the data at the following link: https://drive.google.com/file/d/1Ec6S... I get this question a lot and I completely understand why. Data Blending in itself is very difficult to understand at first because it can be quite an abstract thing. For me, being a highly visual-based learner, I couldn't really see it in my head which caused a lot of frustration. However, as I kept practising with it, it definitely got easier and I begin to see its applications. In theory, think of it as the step right before a standard join takes place. Prior to a join, they are two distinct data sets. After they join they combine into one. In blending this doesn't happen at the beginning of your analysis, i.e. when you first load the data into Tableau. Instead, it triggers as you create the visualization and depending on what you're visualizing and the type of data you're using you'll get different results. This is both a good and a bad thing. For newbies, it's horrible because it feels the results are random and unpredictable. For experienced users, the world is your oyster. This affords you several benefits the primary one being that you can preserve granularity between data sets which is a major issue in standard joins. Duplicates can be terrible and cause all sorts of havoc. Therefore, you need to do some significant checks and validation to ensure it doesn't happen....unless you want it to. In blends, granularity is preserved! ---------------- SUBSCRIBE for new videos Tuesday-Thursday. Click the notification bell so you don't miss a single episode. GOT A QUESTION/PROBLEM? Why not request a video using the Comments section below. I'll make a custom video just for you. ---------------- TRAINING COURSES: Udemy - Complete Tableau Training Course -Over 184k students and over 13k reviews! -200 Lectures and 22 hours of Tableau Content https://www.udemy.com/course/tableau-... SkillShare Tableau Training https://www.skillshare.com/profile/Je... ------------------------------------------------------------------ YOUTUBE PLAYLISTS: Tableau for Beginners - A Quick Start YouTube Course    • Tableau for Beginners - A Quick Start...   Tableau Desktop Accelerator YouTube Course - A Beginners Guide for New Users    • Tableau Desktop Accelerator Course - ...   Tableau Online/Server Short Course - Site Creation, User Management and Licensing    • Tableau Online/Server Short Course - ...   Tableau Online/Server - Complete Playlist    • Tableau Online/Server - Complete Play...   Tableau Desktop - Complete Playlist    • Tableau Desktop - Complete Playlist   Tableau Prep - Complete Playlist    • Tableau Prep - Complete Playlist   #Tableau