(Livestream Replay) DAX Query View Best Practices & Historical Context - with Jeffrey Wang

DESCRIPTION 📄

The November Desktop release's public preview of the DAX Query View has ignited excitement among the DAX community. This feature represents the first new view since the inception of Desktop, joining the existing trio of Report View, Data View, and Model View. This addition is poised to transform the way DAX programmers approach their craft, encouraging them to write their own DAX queries more frequently.

A common challenge with DAX lies in its flexibility, as multiple methods often exist to achieve similar results. DAX queries are no exception; the community has already begun discussing various functions capable of producing comparable query results. In this episode, we will delve into the recommended functions and patterns for writing DAX queries. We aim to demystify the best practices recommended by the product team by exploring the historical context of their development.

GUEST BIO 👤

Jeffrey has over twenty years of experience in the BI industry and joined the Microsoft SQL Server Analysis Services team in 2004. As a co-inventor of the DAX programming language, Jeffrey has watched it grow from an unknown language to one that is widely used worldwide. His latest projects in DAX include the development of the recently announced Visual Calculations.

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Revisiting Common Calculation Group Patterns in Power BI!

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(Livestream Replay) Demystifying [DAX] Evaluation Context - with Brian Grant

DESCRIPTION 📄

“DAX Evaluation Context”, just the name alone strikes fear into the heart of even seasoned Power BI developers. The reality however, is that Evaluation Context in DAX isn’t hard to understand, it’s simply hard to describe. In this session Brian Grant will use a technique called "Formula Decomposition" to visually break down a big DAX formula into a chain of smaller, bit-sized sub-formulas; this in turn will create the platform needed for Brian to make the concepts of Evaluation Context both clear to understand and easy to remember.

At the end of the presentation you will both have a clear idea of how to visualize Row and Filter Context, and also understand how the sub-formulas leverage these contexts to produce the answers you see on a Power BI page. Furthermore, the next time you look at a big intimidating DAX formula, you will know how to break it down into bite sized chunks so they can be understand one at a time.

GUEST BIO 👤

Hailing from the East side of beautiful Portland Oregon, Brian is a Senior Business Analytics consultant with local data heroes Skypoint. Having spent his early years deep in the study of acting and screenwriting, he finally graduated Summa Cum Laude with a degree in Economics. His driving belief is that the biggest barrier most people face when learning technology isn't technology at all, but language. Taught the right way, most people can learn most things; helping people learn skills that are "too technical" for them is his greatest joy. He is the author of the Elements of DAX series on YouTube.

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