This article is the first of a series dedicated to calculation groups in DAX. This introduction explains the capabilities of this feature and how to create calculation groups in a Tabular model.  Read more

The June 2019 update of Power BI includes the ability to filter slicer items based on a measure. This article explains why this is an important feature that should replace bidirectional filters used for the same purpose.  Read more

This article describes how to import into DAX Studio the performance metrics that can be exported by the Power BI Performance Analyzer, simplifying the analysis of slower queries in a report.  Read more

This article describes how to use and interpret the information provided by the Power BI Performance Analyzer, finding the bottlenecks in slow reports.  Read more

The second edition of the Mastering DAX video course is available!  Read more

This article shows why building custom Date tables is preferable to using the automatic date/time handling capabilities of Power BI.  Read more

This article describes how to correctly use column references when manipulating tables assigned to DAX variables, avoiding syntax errors and making the code easier to read and maintain.  Read more

This article shows how to build a basic date table using a calculated table and DAX.  Read more

Time intelligence functions oftentimes hide an automatic ALL statement meant to make time intelligence calculations easier. This article describes this behavior and what to do in case it ends up breaking your calculation.  Read more

A few weeks ago I woke up on a Saturday morning with a question notified on my Quora feed: Why do all the BI consultants hate DAX? I was challenged to answering the question because I personally love DAX but…  Read more