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Defining the right contract is a key activity for a DAX developer using AI. Here we introduce the concept of a contract through ...

Learn how to use TREATAS in CALCULATE filter arguments. How to learn DAX: https://www.sqlbi.com/guides/dax/?aff=yt The ...

User-defined functions are a new and exciting feature in DAX. Here are the key concepts to understand before using them in ...

Possible optimization approaches to improve the performance of nested iterators in DAX. Article and download: ...

SUMMARIZE: Creates a summary of the input table grouped by the specified columns. https://dax.guide/summarize/ This video is ...

Why you should always filter columns and never filter tables with CALCULATE in DAX! Article and download: ...

A simple daily average can hide complexities and return different values. We explore several edge-case scenarios to build the ...

A visual representation of the filter context in DAX can help understand the conceptual model. Article and download: ...

This video shows how to use the USERELATIONSHIP function in DAX to change the active relationship in a CALCULATE function ...

The time has come: in 2026, using AI to write DAX has started to be effective. Latest news and the new courses are at ...

Learning DAX by examples is never a good idea! Watch why and get motivated in learning some theory first! Download sample ...

Understanding the difference between row context and filter context is the first and most important concept to learn to use DAX ...

How to define optional parameters in DAX user-defined functions and set default values for parameters not specified by the caller.

What are the differences between measures and calculated columns in DAX and Power BI? All the answers in this short video.

What is data lineage in DAX? How does it work? How can you write better DAX code knowing it? Article and sample download: ...

SUMMARIZECOLUMNS is a powerful and complex function in DAX that in 2025 can be used in measures. This article outlines the ...

Using variables in DAX makes the code easier to read, faster, and easier to debug. Learn how and when to use variables, along ...

Learn the difference between using VALUES and KEEPFILTERS in CALCULATE. How to learn DAX: ...

Understanding the difference between a row context and a filter context is the first and most important concept to learn to use DAX ...

Investigate a slow query in a Power BI report using DAX Studio, looking at the query plan and the server timings. How to learn ...