Topic: DAX
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When a slicer contains many items, developers can filter the most relevant items using another slicer. The scenario is easily solved with a many-to-many relationship if the source is a regular table. Still, it requires some DAX coding if the… Read more
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A filter argument in CALCULATE is always an iterator. Finding the right granularity for it is important to control the result and the performance. This article describes the options available to create complex filters in DAX. Read more
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RANK is a new DAX function to rank items based on multiple columns. This article introduces the RANK function and its differences with RANKX. Read more
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This article explains the precedence of calculation groups in DAX, needed whenever multiple calculation groups are present within the same model. Before starting, we suggest you read the previous articles in this series. Read more
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The LINESTX DAX function simplifies the calculation of linear regressions. This article explains the correct way to manage its results efficiently. Read more
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This article describes how to use the Group By Columns property to store the slicer selection by using the same column used in a SWITCH function to optimize the query performance. Read more
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This article describes how to optimize a text search operation in DAX. This technique can improve the performance of Power BI reports that use the contains condition in the filter pane or the filter mode of the Smart Filter Pro… Read more
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The second edition of the Optimizing DAX video course is available: new content, a new book, and some on the behind-the-scenes of the project. Read more
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This article describes the possible rounding differences that can appear in DAX. They are related to the data types and the operation being performed: knowing these details helps you write more robust DAX formulas and avoid errors in comparisons. Read more
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The SWITCH function in DAX has been optimized over the years, and it is helpful to know what makes the optimization work best. Read more