As soon as you open a pre-2020.2 workbook or data source in a 2020.2 form of Tableau, your data provider will appear as an individual sensible desk into the canvas using the title “Migrated Data”. You’ll be able to rename the Migrated information dining table.
Your original, denormalized facts was originally constructed from one or higher dining tables utilizing joins and unions. Whenever you open up the info resource in Tableau 2020.2, Tableau migrates the denormalized facts design to just one sensible desk when you look at the latest facts design to make sure that your computer data and workbooks are moved without adjustment.
To see the real dining tables that define the solitary reasonable desk, double-click that rational desk to open up they inside bodily layer. You will notice its fundamental real tables, like joins and unions.
When you yourself have current multi-table data sources explained utilizing real layer joins, they will certainly still work as they did prior to. You don’t have to alter your repository. You’ll link sensible dining tables to your migrated table, you can’t downgrade logical tables.
You will give consideration to altering you data source to make use of relationships in the place of joins should you want to increase the amount of dining tables towards facts model. This may need you to pull tables through the actual level, and then put these to the rational covering.