The key to unlocking the full potential of your data lies in understanding how to use measures and calculated columns ... tab in Power BI Desktop. Select “New Measure” and enter a DAX formula ...

By using its advanced tools—Power Query ... Data Analysis Expressions (DAX) is a specialized formula language designed for creating calculated measures and columns within Power Pivot.

Tableau uses MDX for measures and dimensions, while Power BI uses DAX for calculating and measuring columns. They are both expression languages created to query data, but DAX was built with ...