The DAX language

The DAX language was created specifically for the handling of data models, through the use of formulas and expressions. DAX is used in several Microsoft Products such as Microsoft Power BI, Microsoft Analysis Services and Microsoft Power Pivot for Excel. These products all share the same internal engine, called Tabular.

About this Reference The curated content of DAX Guide makes it a go-to reference on the DAX language. DAX Guide is updated automatically, through the monitoring of new versions of Microsoft products. For every DAX function, DAX Guide offers a compatibility matrix for versions/products supported. Every function/argument is marked with attributes highlighting its behavior regarding row context and context transition. DAX Guide integrates and expands on the MSDN documentation.

About the Authors The content of DAX Guide is curated by a small number of authors referenced in each page. Contributions and suggestions are welcome.

DAX Guide is a project by SQLBI.