خرید و دانلود نسخه کامل کتاب Expert Data Modeling with Power BI: Get the best out of Power BI by building optimized data models for reporting and business needs 1st Edition

Manage and work with business data effectively by learning data modeling techniques and leveraging the latest features of Power BIKey FeaturesUnderstand data modeling techniques to get the best out of data using Power BIDefine the relationships between data to extract valuable insightsSolve a wide variety of business challenges by building optimal data modelsBook DescriptionThis book is a comprehensive guide to understanding the ins and outs of data modeling and how to create data models using Power BI confidently.You’ll learn how to connect data from multiple sources, understand data, define and manage relationships between data, and shape data models to gain deep and detailed insights about your organization.In this book, you’ll explore how to use data modeling and navigation techniques to define relationships and create a data model before defining new metrics and performing custom calculations using modeling features. As you advance through the chapters, the book will demonstrate how to create full-fledged data models, enabling you to create efficient data models and simpler DAX code with new data modeling features. With the help of examples, you’ll discover how you can solve business challenges by building optimal data models and changing your existing data models to meet evolving business requirements. Finally, you’ll learn how to use some new and advanced modeling features to enhance your data models to carry out a wide variety of complex tasks.By the end of this Power BI book, you’ll have gained the skills you need to structure data coming from multiple sources in different ways to create optimized data models that support reporting and data analytics.What you will learnImplement virtual tables and time intelligence functionalities in DAX to build a powerful modelIdentify Dimension and Fact tables and implement them in Power Query EditorDeal with advanced data preparation scenarios while building Star SchemaExplore best practices for data preparation and modelingDiscover different hierarchies and their common pitfallsUnderstand complex data models and how to decrease the level of model complexity with different approachesLearn advanced data modeling techniques such as aggregations, incremental refresh, and RLS/OLSWho this book is forThis MS Power BI book is for BI users, data analysts, and analysis developers who want to become well-versed with data modeling techniques to make the most of Power BI. You’ll need a solid grasp on basic use cases and functionalities of Power BI and Star Schema functionality before you can dive in.Table of ContentsIntroduction to data modelling in Power BI Data Analysis eXpressions and Data ModelingData Preparation in Power Query EditorGetting data from various sourcesCommon data preparation stepsStar Schema preparation in Power Query EditorData preparation common best practices Data Modeling ComponentsStar Shema and Data Modeling Common Best PracticesAdvanced Data Modeling TechniquesRow Level SecurityExtra Options and Features Available for Data Modeling