Tableau has added a new way to work with data in Tableau across all authoring experiences. Relationships allow you to create logical tables alongside physical tables making it easier to worry less about the shape of your data and worry more about what questions you haven't answered.
What's Changed with Data Sources and Analysis in 2020.2: https://help.tableau.com/v2020.2/pro/desktop/en-us/datasource_datamodel_whatschanged.htm
Questions about Relationships, the Data Model, and Data Sources in 2020.2 https://help.tableau.com/v2020.2/pro/desktop/en-us/datasource_datamodel_faq.htm
The Tableau Data Model https://help.tableau.com/v2020.2/pro/desktop/en-us/datasource_datamodel.htm
Relate Your Data https://help.tableau.com/v2020.2/pro/desktop/en-us/relate_tables.htm
Optimize Relationships Using Performance Options https://help.tableau.com/v2020.2/pro/desktop/en-us/datasource_relationships_perfoptions.htm
How Analysis Works for Multi-table Data Sources that Use Relationships https://help.tableau.com/v2020.2/pro/desktop/en-us/datasource_multitable_analysis_overview.htmTroubleshooting Multi-table Analysis https://help.tableau.com/v2020.2/pro/desktop/en-us/datasource_multitable_analysis_overview.htm#TroublesWalkthrough: Don't Be Scared of Relationships https://help.tableau.com/v2020.2/pro/desktop/en-us/datasource_dont_be_scared.htm
Be sure to check out out my professional home, @The Information Lab for more great Tableau, Alteryx and AWS content. Visit my blog https://tableautim.com Say hi on Twitter: https://twitter.com/tableautimFiles used in my videos for 2020.2 videos: https://j.mp/2YvaEot ----Join my Discord Server. https://discord.gg/shBuxXr it's a little sparse at the moment but hang in there.