Renowned DAX experts Alberto Ferrari and Marco Russo teach you how to design data models for maximum efficiency and effectiveness. How can you use Excel and Power BI to gain real insights into your information? As you examine your data, how do you write a formula that provides the numbers you need? The answers to both of these questions lie with the data model. This book introduces the basic techniques for shaping data models in Excel and Power BI. Itâs meant for readers who are new to data modeling as well as for experienced data modelers looking for tips from the experts. If you want to use Power BI or Excel to analyse data, the many real-world examples in this book will help you look at your reports in a different wayâlike experienced data modelers do. As youâll soon see, with the right data model, the correct answer is always a simple one! By reading this book, you will: Gain an understanding of the basics of data modeling, including tables, relationships, and keys Familiarise yourself with star schemas, snowflakes, and common modeling techniques Learn the importance of granularity Discover how to use multiple fact tables, like sales and purchases, in a complex data model Manage calendar-related calculations by using date tables Track historical attributes, like previous addresses of customers or manager assignments Use snapshots to compute quantity on hand Work with multiple currencies in the most efficient way Analyse events that have durations, including overlapping durations Learn what data model you need to answer your specific business questions The full text downloaded to your computer With eBooks you can: search for key concepts, words and phrases make highlights and notes as you study share your notes with friends eBooks are downloaded to your computer and accessible either offline through the Bookshelf (available as a free download), available online and also via the iPad and Android apps. Upon purchase, you will receive via email the code and instructions on how to access this product. Time limit The eBooks products do not have an expiry date. You will continue to access your digital ebook products whilst you have your Bookshelf installed.
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Oct 25, 2021
€29.96