Book Image

Microsoft Power BI Cookbook

By : Author Test, Brett Powell
Book Image

Microsoft Power BI Cookbook

By: Author Test, Brett Powell

Overview of this book

Microsoft Power BI is a business intelligence and analytics platform consisting of applications and services designed to provide coherent, visual and interactive insights of data. This book will provide thorough, technical examples of using all primary Power BI tools and features as well as demonstrate high impact end-to-end solutions that leverage and integrate these technologies and services. Get familiar with Power BI development tools and services, go deep into the data connectivity and transformation, modeling, visualization and analytical capabilities of Power BI, and see Power BI’s functional programming languages of DAX and M come alive to deliver powerful solutions to address common, challenging scenarios in business intelligence. This book will excite and empower you to get more out of Power BI via detailed recipes, advanced design and development tips, and guidance on enhancing existing Power BI projects.
Table of Contents (14 chapters)

Transforming and cleansing source data

The transformations applied within Power BI's M queries serve to protect the integrity of the data model and to support enhanced analysis and visualization. The specific transformations to implement varies based on data quality, integration needs, and the goals of the overall solution. However, at a minimum, developers should look to protect the integrity of the model's relationships and to simplify the user experience via denormalization and standardization.

This recipe includes examples of protecting a data model from duplicate values and enhancing the quality of a dimension column via a relationship to a separate data source.

Getting ready

To best follow the duplicate removal...