Topic: Power BI

       63 articles of 142 posts
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DAX error messages in Power BI

This article describes the real meaning of and the required action for a few common error messages that can appear when users define DAX expressions in Power BI.  Read more

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Bidirectional relationships and ambiguity in DAX

Activating bidirectional cross-filter in a Tabular data model might create ambiguous paths in the chain of relationships, resulting in very dangerous models as numbers become unpredictable. This article provides a deep explanation of the kind of ambiguity that might appear…  Read more

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Understanding numeric data type conversions in DAX

This article describes how DAX automatically converts data types in arithmetic operations. These small details can cause and explain differences in results when using the same operations in other languages.  Read more

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Displaying Nth Element in DAX

This article describes how to create a measure displaying the name or value of an element that has a specific ranking, with different option for managing ties.  Read more

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Understanding DAX Auto-Exist

This article describes the behavior of auto-exist in DAX, explaining the side effects of combining slicers on columns of the same table in Power BI.  Read more