In the report below, you can see how PowerBI is becoming more googled term than Microsoft Excel in most of Western Europe and Australia.
DAX HANDBOOK
7. VARIABLES
Variables are used in almost every measure you will create. The reason we introduce them last is that they use all other parts of DAX code to produce faster, more powerful and maintainable code. Variables are like containers of a part of the DAX code which can be used throughout...
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