KNOWLEDGE BASE

Warning "The primary and secondary connections are from tables in the same data source" Blending Data


Published: 29 Jan 2014
Last Modified Date: 29 Jul 2016

Issue

When you try to use fields from multiple data sources in your view, the following warning might occur:
 
The primary and secondary connections are from tables in the same data source. Instead of linking the connections, use the Data menu to join the data. Joins can integrate data from many tables and may improve performance and filtering.

Environment

Tableau Desktop

Resolution

  • If the blend is performing as expected, dismiss the warning by selecting Do not show again, then click OK.
  • If the blend is not performing as expected, consider using a join instead. For more information, see Joining Tables
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