Tableau 9.3 Union

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I loved the function and explanation.
Unfortunately, it is not possible to "Union" using different data sources...

I tried to use historical data to today's date from a csv file, and from today from a Google Spreadsheet file (with automatic update) ... without success.

MichelMetran
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Great video on union. Please advise if we can also create union with multiple xlsx file stored in a single folder as we have created Union in this video wherein we have given one data source only and it has selected all the available files in the folder. thanks

rakeshnag
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Can I use Union with sources coming from costumized SQL? seems to not work

MAGHELLA
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Excellent, ho9ws about allowing each to be lined up and renamed/aliased to allow a union of not quite preprapred data fiiles. ie to make them the same.

MrBgsounds
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Can I use Union with sources coming from costumized SQL? seems to not work

burgosl
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