During a conversation at PASS Summit, one of the developers of Power BI shown me a way to use TREATAS in place of IN in DAX. I am not sure it increases readability of the code, but let’s examine pros…  Read more

I recently stumbled across a strange behavior of HASONEVALUE, which also impacts the SELECTEDVALUE function. When the only selected item in a column is a numeric value 0 and the column also contains a blank value, there is a bug…  Read more

A few months ago, I and Alberto realized that the reason why variables are not used in DAX as they should is that… there are not many examples out there! For this reason, we made a commitment to use them more…  Read more

In the second half of 2017 I will deliver sessions and preconference days in two big events. I’d like to recap my sessions here, let me know if you have any questions about them. Microsoft Ignite 2017 – September 25-29,…  Read more

You can connect an Excel workbook to a Power BI model in two ways: Using the Analyze in Excel action in powerbi.com Using the Connect to Data action in the ribbon of Power BI publisher for Excel In both cases,…  Read more

I recently wrote a few articles about a new function in DAX and the use of variables. For those of you using Power BI or Azure Analysis Services, you always have access to the latest version of the language. Well, in reality I see that new features appears  Read more

This page contains descriptions and links to necessary tools and resources for DAX and Tabular developers.  Read more

Jun 19, 2017

Defining variables in DAX queries

This article shows how to define variables in DAX queries and introduces the differences in scope when there are multiple EVALUATE statements.  Read more

In the next three weeks I will deliver many speeches and training in United States. Here is the list: June 11, 2017 : Precon Data Modeling with Power BI at Microsoft Data Insights Summit (Seattle, WA) June 12, 2017 : Workshop DAX 101 at Microsoft Data  Read more

I recently wrote an article about duplicated names in DAX to highlight a possible case where you can have a measure with the same name of a column. This is not a good idea, mainly because the syntax to reference a measure and a column is identical, and  Read more