This article explains the precedence of calculation groups in DAX, needed whenever multiple calculation groups are present within the same model. Before starting, we suggest you read the previous articles in this series.  Read more

This article explains how calculation items are applied to measure references, and it is part of a series dedicated to calculation groups in DAX. Before starting, we suggest you read the previous articles in this series.  Read more

Ever struggled with a formula in DAX that does not compute what you want? It has happened to us many times, and we know that the problem is ALWAYS related to the evaluation context. Filter context, row context, and context…  Watch now

This article explores the properties of calculation groups in detail and then it describes how a calculation item is applied to a measure. Before starting, we suggest you read the previous article that introduces calculation groups.  Read more

This article showcases the use of CONCATENATEX, a handy DAX function to return a list of values in a measure.  Read more

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