Topic: Power BI

       Page 8 of 97 articles
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Duplicated names in DAX

This article describes how DAX resolves column and measure names in DAX, providing best practices to avoid conflicting names.  Read more

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Lookup multiple values in DAX

This article describes different techniques to retrieve multiple values from a lookup table in DAX, improving code readability and performance.  Read more

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Context Transition and Expanded Tables

This article describes how table expansion and filter context propagation are important DAX concepts to understand and fix small glitches in DAX expressions.  Read more

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The IN operator in DAX

This article describes the IN operator in DAX, which simplifies logical conditions checking whether a certain value is included in a list of values or expressions.  Read more

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Introducing SUMMARIZECOLUMNS

This article explains how to use SUMMARIZECOLUMNS, which is a replacement of SUMMARIZE and does not require the use of ADDCOLUMNS to obtain good performance.  Read more

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Compare equivalent periods in DAX

If you do not have a full month with data, comparisons such as year-over-year (YOY) might require particular filters in order to do a like for like comparison in DAX. This article describes how to write DAX expressions comparing equivalent…  Read more

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Use of RANKX in Power BI measures

The RANKX function in Power BI might have an unexpected behavior when applied to a column that has a specific sort order in the data model. This article explains why, and how to address this issue.  Read more

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Analyzing events with a duration in DAX

This article analyzes how to efficiently work with events that lasts over time, such as the duration of an order considering the distance between order date and ship date.  Read more