VAR

Definition

Variables are an extremely useful feature in DAX, but perhaps not a well known one. Variables:
1. Make your formulas more readable
2. You can reuse them through your report
3. Can also be tables
4. Are more efficient

Remarks

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Tutorial with example

In this tutorial we go through how to write variables in Power BI:

Download example file:

Download our Growth dashboard if you want to see the example live: http://curbal.com/blog/the-ultimate-d…

Deep dive on variables:

Lets do a deep dive into variables shall we? In this video, I am going to cover the following:
1. Naming variables, dos and donts
2. The syntax for calling variables
3. Can a variable refer to a measure?
4. Can a measure refer to an external variable?
5. Can a variable refer to a variable?
6. Can a variable store a table?
6. Can you refer to a column from the table inside the variable?