Data Analysis Expressions (DAX) is a formula expression language used in Analysis Services, Power BI, and Power Pivot in Excel. DAX formulas include functions, operators, and values to perform advanced calculations and queries on data in related tables and columns in tabular data models.
In this step-by-step tutorial for beginners, learn how to use DAX (Data Analysis Expressions) in Microsoft Power BI. DAX is a formula language with functions. If you've ever written formulas in Excel, you'll find that DAX is very familiar.
Data Analysis Expressions (DAX) is a programming language that is used throughout Microsoft Power BI for creating calculated columns, measures, and custom tables.