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The filter arguments in CALCULATE can be written as logical conditions with certain restrictions. This article explains the more common errors in these conditions and how to solve them. Read more
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SQLBI+ is our new subscription service for advanced content that supports professional model authors who create semantic models for Power BI and Analysis Services. Read more
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Learn how to write DAX queries and how to manipulate tables in DAX measures and calculated columns. Read more
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Learn the internals of Power BI semantic models created by using VertiPaq, DirectQuery over SQL, and DirectQuery for Power BI datasets and Analysis Services. Read more
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Understanding the difference between row context and filter context is the first and most important concept to learn to use DAX correctly. This article introduces the row context, and is part of a series of articles about evaluation contexts in… Read more
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The first version of Bravo for Power BI is now generally available! Read more
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Horizontal fusion is a new optimization technique available in DAX to reduce the number of storage engine queries. In this article, we introduce this optimization with some examples. Read more
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A common question is why Power BI totals are inaccurate because they do not display the sum of individual rows. In this article, we explain the reasons why those totals are correct. Read more
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This article describes how to enable the cross-highlight in Power BI charts using different dates for the same event, such as Order Date and Delivery Date. Read more
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This article describes how to create a virtual relationship in DAX using the TREATAS function, which is more efficient than approaches based on INTERSECT or FILTER. Read more