Topic: DAX

        409 posts
blog post –

Announcing DAX Patterns second edition

Great news! Just one year after releasing the second edition of The Definitive Guide to DAX, we just published a new website, a new book, and a new collection of videos: the second edition of DAX Patterns! DAX Patterns is…  Read more

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Understanding LOOKUPVALUE

The LOOKUPVALUE function retrieves values from a table in a simple way, but it involves a hidden level of complexity. This article provides full coverage of the LOOKUPVALUE internals, alongside several performance considerations.  Read more

DAX 101 –

Mark as Date table

Tabular models (including Power BI) require marking the Date table as a date table to get appropriate results with time intelligence calculations. This article explains why this setting is required.  Read more

blog post –

Creating Calculation Groups in Power BI Desktop

Something really big is happening! The July 2020 version of Power BI Desktop allows you to create calculation groups in Power BI Desktop, thanks to the new “external tools” feature that enables the integration with Tabular Editor. We had been…  Read more

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Introducing LOOKUPVALUE

This article shows the reader how to use LOOKUPVALUE, which is a handy function for any developer to have in their toolbelt.  Read more

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Distinguishing HASONEVALUE from ISINSCOPE

This article describes the differences between HASONEVALUE and ISINSCOPE, which are two useful DAX functions to control the filters and the grouping that are active in a report.  Read more

blog post –

7 reasons DAX is not easy

DAX is simple, but it is not easy. I cannot remember how many times I read this sentence on social media, attributed to me. For good reason: I have repeated this sentence at almost every classroom course I delivered over…  Read more

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Handling customers with the same name in Power BI

This article explains how to show different customers with the same name in a Power BI report by using zero-width spaces, thus simplifying the presentation without adding visible characters to make the names unique.  Read more