Phoenix (Tempe), AZ, USWhat happened in the DAX world in 2025
Marco RussoIt is time for our annual review of what happened in the DAX and SQLBI worlds, and what we should expect in 2026! Read more
Analyzing the performance of limited and regular relationships
Marco Russo & Alberto FerrariThis article analyzes the performance of regular versus limited relationships in DAX to understand the implications of using limited relationships. Read more
Jul 21-23 - Amsterdam
Video Training
Introducing DAX Video CourseFree
Measuring the impact of promotions on sales in Power BI
This article describes the data model and DAX measures to analyze the effectiveness of campaigns, by separating attributed sales (directly linked to a campaign) from influenced sales (all sales of products participating in campaigns, regardless of attribution). Read more
Introducing DAX Lib, the “app store” for DAX User-Defined Functions
Three months ago, Microsoft introduced the User-Defined Functions (UDFs) in the DAX language. From the first day, https://daxlib.org has been available to share libraries of functions with the Power BI community. We published DAX Lib with a low profile because… Read more
DAX Patterns
Events in progress
The Events in Progress pattern has a broad field of application It is useful whenever dealing with events with a duration - events that have a start date and an end date The event is considered to be in progress… More on DAX Patterns
Microsoft Press
The Definitive Guide to DAX, Third Edition
The Definitive Guide to DAX is an authoritative resource for mastering the DAX language, which is pivotal for creating measures for semantic models in Microsoft Power BI, Fabric, Analysis Services, and Excel.
Read more