Book Image

Microsoft Power BI Data Analyst Certification Guide

By : Orrin Edenfield, Edward Corcoran
5 (1)
Book Image

Microsoft Power BI Data Analyst Certification Guide

5 (1)
By: Orrin Edenfield, Edward Corcoran

Overview of this book

Microsoft Power BI enables organizations to create a data-driven culture with business intelligence for all. This guide to achieving the Microsoft Power BI Data Analyst Associate certification will help you take control of your organization's data and pass the exam with confidence. From getting started with Power BI to connecting to data sources, including files, databases, cloud services, and SaaS providers, to using Power BI’s built-in tools to build data models and produce visualizations, this book will walk you through everything from setup to preparing for the certification exam. Throughout the chapters, you'll get detailed explanations and learn how to analyze your data, prepare it for consumption by business users, and maintain an enterprise environment in a secure and efficient way. By the end of this book, you'll be able to create and maintain robust reports and dashboards, enabling you to manage a data-driven enterprise, and be ready to take the PL-300 exam with confidence.
Table of Contents (25 chapters)
1
Part 1 – Preparing the Data
6
Part 2 – Modeling the Data
11
Part 3 – Visualizing the Data
15
Part 4 – Analyzing the Data
18
Part 5 – Deploying and Maintaining Deliverables
21
Part 6 – Practice Exams

Accessing Power Query in Power BI

Power Query is accessible inside the Power BI Desktop tool by connecting to a data source and then clicking Transform Data (rather than Load or Cancel). For existing data models, Power Query can be accessed by right-clicking on the query in the Fields pane and clicking Edit query.

The Power Query window provides a ribbon at the top with tabs for Home, Transform, Add Column, View, Tools, and Help. There is also a Query Settings pane on the right-hand side that shows the name of the query and the steps applied to the data that get built up as you transform the data. The Applied Steps pane makes it easy to undo or redo different transforms and immediately see the impact of those transforms on the data, which is shown in the center of the window. The last part of the user interface is the Queries pane on the left-hand side of the window. This shows all queries that make up the data model and allows you to flip back and forth between them as you&apos...