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The Definitive Guide to DAX: Business intelligence with Microsoft Excel, SQL Server Analysis Services, and Power BI by Marco Russo, Alberto Ferrari

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Introduction

We previously wrote about DAX many times: in books about Power Pivot and SSAS Tabular, in blog posts, articles, white papers, and finally in a book dedicated to DAX patterns. So why should we write (and, hopefully, you read) yet another book about DAX? Is there really so much to learn about this language? Of course, we think the answer is definitely yes.

When you write a book, the first thing that the editor wants to know is the number of pages. There are very good reasons why this is important: price, management, allocation of resources, and so on. At the end, nearly everything in a book goes back to the number of pages. As authors, this is somewhat frustrating. In fact, whenever we wrote a book, we had to carefully allocate space ...

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