Topic: DAX
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This article shows how to compute ratios when row-level security hides some of the data. If the percentage also includes the hidden rows in the comparison, you should customize the data model and the measures involved to get the right… Read more
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This article explains a typical pattern to optimize a SUMX iterator by reducing the number of callbacks in the expression. Read more
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This article describes how to apply conditional formatting on measures picked from a slicer and implemented using two techniques: field parameters and calculation groups. Read more
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Power BI introduced dynamic format strings in May 2023. In this article, we briefly introduce this functionality and then dive into a few technical details of its implementation. Read more
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This article analyzes the performance of different DAX techniques to identify any products without sales in an area or a time period. Read more
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You can rely on DAX expressions to control the behavior of some aspects of Power BI visuals. This article shows a few examples of managing the range of charts. Read more
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This article describes how to analyze the performance of a DAX measure based on a DISTINCTCOUNT calculation and how to evaluate possible optimizations. Read more
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This article describes how to read the active security roles in a Tabular model for Power BI or Analysis Services. This way, you can use measures and calculation groups to customize a report based dynamically on security roles active for… Read more
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This article describes a reference Date table in DAX using a Power BI template. The same technique can be used in Analysis Services models. Download the latest version of the template in the Dax Date Template page. Read more
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The blank value in DAX is a special value requiring particular attention in comparisons. It is not like the special null value in SQL, and it could appear in any conversion from a table expression. This article explores in details… Read more