what is the differences between Data Blending ... - The Tableau …
A blend is always required if the data is stored in two separate "data sources" within Tableau. So even if your data is very closely related and exists in two separate files or databases, you will have to do a …
What does an asterisk "*" mean when blending data? - The Tableau …
@Christian - data blending is similar to a left join, but not exactly. What Tableau does is generate the query for the primary, then generate a query for the secondary, and then inside Tableau merge the …
Solution for the error : 'Cannot blend the secondary data source ...
Reply 1 upvote Donna Coles (Member) 5 years ago Hi there Data blending in Tableau can be quite tricky, as data from the secondary data sources must be able to be aggregated. One of the ways I …
Unsupported Aggregation when blending - The Tableau Community
The unsupported aggregation happens when your aggregate requires row-level visibility to the secondary data source. We don't get row-level data from secondary sources on a blend.
Cannot blend the secondary data source because ... - The Tableau …
Hello Tableau world!! Am running into the strangest problem when data blending with V8. I have 2 duplicate data sources that I am blending together (they are duplicate because I want to filter the …
Relationship vs JOIN vs Data Blending - The Tableau Community
Hello, with the release of the new data relationship feature I would like to ask a question, when to use classical JOINs, Data blending and when to use relationships? I have been using the new …
How do I resolve a data blend error? - The Tableau Community
How do I resolve a data blend error? I have created blended relationships across 3 Data sources based on custom mapping between 3 date fields ("AQL Date" in the 'Campaign Performance' data source, …
Data Blending Compared to Join - Use Case - The Tableau Community
Nov 6, 2019 · 1. Everyone tells blend it is for different data sources but I can see even cross join can be used to join different data sources. 2. Everyone says in blending Tableau handles combining the …
Count Distinct from Secondary workaround - The Tableau Community
I’ve created this post in order to share my workaround for bringing over a Count Distinct (COUNTD) from a secondary data source. If you’ve tried to show a COUNTD from a secondary before, you’ve …
How can I blend data from two separatable data sources (with different ...
That wont do. Cause i need two data sources (with the same architecture - the columns are the same) with different refresh patterns (first incremental, second full-refresh). If, say I blend two data sources …