Normally joins will integrate the data from multiple tables in a single data source .In tableau if you want perform the analysis and reporting from multiple data sources then we have to make use of concept called as data blending.
The data blending mixes the data from the different data sources in to a single sheet in the tableau based on few rules.
1. All the data sources should contain at least one common dimension
2.At least one value in the common dimension should match
The data blending mixes the data from the different data sources in to a single sheet in the tableau based on few rules.
Rules to perform data blending:
2.At least one value in the common dimension should match
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