Chapter 1What is DAX?
DAX, which stands for Data Analysis eXpressions, is the programming language of Microsoft Power BI, Microsoft Analysis Services, and Microsoft Power Pivot for Excel. It was created in 2010, with the first release of PowerPivot for Microsoft Excel 2010. In 2010, PowerPivot was spelled without the space. The space was introduced in the Power Pivot name in 2013. Since then, DAX has gained popularity, both within the Excel community, which uses DAX to create Power Pivot data models in Excel, and within the Business Intelligence (BI) community, which uses DAX to build models with Power BI and Analysis Services. DAX is present in many different tools, all sharing the same internal engine named Tabular. For this reason, we often ...
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