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This page contains descriptions and links to necessary tools and resources for DAX and Tabular developers. Read more
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VertiPaq is the internal column-based database engine used by PowerPivot and BISM Tabular models. High cardinality columns might be the more expensive parts of a table. If you cannot remove a high cardinality column from a table, by using the… 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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Grouping transactions by customers’ age requires a computation made row by row at transaction level. DAX offers an elegant solution using calculated columns, which is described in this article. Read more
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Memory settings in Analysis Services might be an important tuning of a correct setup, both for production and developer machines. Analysis Services 2012 can be installed in different ways and the new Tabular instance has new memory settings that are… Read more
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DAX is the new language used by PowerPivot and Analysis Services in Tabular mode and it resembles the syntax of Excel formula and it can be considered a functional language. You do not have iterative statements, but you can run… Read more
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Rules for DAX Code Formatting
With the modern editors that have automatic code formatting features, each one has its own code formatting style. Usually, there are a few “common rules” for code formatting depending on the language, but there was nothing for DAX Read more
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The DAX language provides several Time Intelligence functions that simplify writing calculations such as year-to-date (YTD), year-over-year (YOY) and so on. However, if you have a special calendar structure such as a 4-4-5 weeks’ calendar, you need to write your… Read more
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articleFrom SQL to DAX: IN and EXISTS
The SQL functions IN and EXISTS are useful to implement tests over a set of values. This article describes the corresponding syntax in DAX language. Read more