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If you want to combine several tables, you have to ask yourself whether you should do this already in the data source such as SQL Server, in the processing of the data (ETL) in Power Query or in Power BI and, above all, where exactly there is a difference.

First of all, the post is relatively detailed, for all of those who consider it too long (tl;dr) here is the comparison table:

Duplicate entries remainDuplicate entries are removedUnequal number of columnsDeviating column namesDifferent order of the columnsCombine more than 2 tables
APPEND in Power QueryxPossible with “Remove duplicates”xxx
UNION in DAXxPossible with “DISTINCT”xx
Overview of the different possible combinations

Data transformation in the data source or in the frontend?

A question that

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In yesterday’s poston the Power BI Blog, Microsoft announced the upcoming Power BI Premium for individual users.

The advantages of Power BI Premium compared to a normal Pro Account are quite clear: 48 refreshes per data set per day compared to 8 refreshes with the Pro License, automated machine learning possibilities, cognitive services, the up to 16 times better performance (according to Microsoft) and the significantly higher limit for the size of data sets offer among others a huge added value.

Premium up to now only affordable for large companies

The problem so far is that Power BI Premium starts at 4’995 USD – noted per month. This corresponds to the financial expense of about

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In times of Corona we have to take other ways to avoid the gathering of larger crowds.
Such as Microsoft, which is setting this year’s Ignite from 22-24.09.2020 as an exclusively virtual event. For Europeans maybe not even the worst decision 😉

You can register on the Ignite website:

According to the PBI blog the following sessions are about Power BI:

Live Sessions

Microsoft Power Platform: Fill the app gap and supercharge organizational agility
Live Tuesday Sept 22: 9:30 – 9:50 AM PDT
Replay Sept 22: 5:30 – 5:50 PM PDT
Replay Sept 23: 1:30 – 1:50 AM PDT

Deliver insights where decisions are made with Power BI
Live Tuesday Sept 22: 12:15 – 12:45 PM PDT
Replay Sept 22: 8:15 – 8:45