Description
PHI Learning Analyzing Data With Microsoft Power Bi And Power Pivot For Excel 2019 Edition by Alberto Ferrari
Renowned DAX experts Alberto Ferrari and Marco Russo teach you how to design data models for maximum efficiency and effectivenessHow 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. It’s 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 analyze data, the many real-world examples in this book will help you look at your reports in a different way—like experienced data modelers do. As you’ll 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• Familiarize 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• Analyze events that have durations, including overlapping durations• Learn what data model you need to answer your specific business questionsGet all code samples, including complete apps, athttps://aka.ms/AnalyzeData/DownloadsTarget AudienceFor intermediate to advanced users of Microsoft Excel• For Excel and Power BI users who want to exploit the full power of their favorite tools• For BI professionals seeking new ideas for modeling data. ContentsIntroductionCHAPTER 1 Introduction to data modelingCHAPTER 2 Using header/detail tablesCHAPTER 3 Using multiple fact tablesCHAPTER 4 Working with date and timeCHAPTER 5 Tracking historical attributesCHAPTER 6 Using snapshotsCHAPTER 7 Analyzing date and time intervalsCHAPTER 8 Many-to-many relationshipsCHAPTER 9 Working with different granularityCHAPTER 10 Segmentation data modelsCHAPTER 11 Working with multiple currenciesAPPENDIX A Data modeling Index.