Topic: DAX
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USERELATIONSHIP lets you temporarily change which relationship is active. Even though USERELATIONSHIP is easy to work with in measures, it can be challenging and give you inaccurate results when used in calculated columns. In this article, we describe the details… Read more
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This article explains how to avoid circular dependency errors that can occur in DAX when two or more entities (calculated columns or calculated tables) reference one another in such a way that the engine cannot compute their value. Read more
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This article shows how to add an additional “other” row to the selection obtained using the Top N filter in a Power BI report. Read more
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Power BI and Analysis Services are case-insensitive by default.Lowercase letters are identical to uppercase letters.This is mostly a good choice, but it also comes with unexpected consequences. In this article, we run through a set of queries to understand what… Read more
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This article explains the most common causes of the error, “A circular dependency was detected” in Power BI and Analysis Services. Read more
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Analyzing table and column size is an important step in optimizing a data model for Power Pivot, Power BI, or Analysis Services Tabular. This article describes VertiPaq Analyzer, an Excel workbook to analyze detailed information extracted from Dynamic Management Views. Read more
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When you apply a multiple selection to a slicer or to a filter, you obtain a logical OR condition between selected items. This article shows how to implement a logical AND condition in a measure instead of the standard OR… Read more
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You can create static tables in DAX using the DATATABLE function. This article describes the syntax of this new feature and shows when and how to use it. Read more
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This article describes the syntax and the use cases of the DEFINE COLUMN statement in DAX. Read more
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This article shows an optimized DAX technique to display the first N products for each category in Power BI, adding a row that aggregates the value for all the other products. The companion video introduces the scenario and the general… Read more