Last Modified Date: 19 Dec 2019
AnswerTo view a complete list of supported connectors, see in Union Your Data: Supported Connectors Tableau Help.
There are some possible workarounds for establishing a union for data sources that are not Excel, Google Sheets or text files:
- Create an extract of the first table and append the second table to it. Please note that refreshing the connection will remove the appended table
- Use custom SQL to perform a union between the desired tables
- Mirror the data sources onto different Excel sheets
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