Summary

This module covered using DAX calculations to extend your semantic model. You learned the differences between calculated columns and measures, including when and how Power BI evaluates them and how they store data. Explicit measures are important because they allow you to create complex DAX formulas to achieve the precise calculations that your report visuals need.

You also learned how calculated columns are evaluated within row context, and iterator functions are available in measures for advanced row-by-row calculations.

Understanding how to create and use DAX calculations is fundamental for building effective, flexible, and maintainable semantic models in Power BI. These concepts help you design reports that deliver accurate insights and support a wide range of analytical requirements.

For more information, see Introduction to DAX in Power BI.