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Power Query Cookbook

Power Query Cookbook

By : Janicijevic
4.5 (14)
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Power Query Cookbook

Power Query Cookbook

4.5 (14)
By: Janicijevic

Overview of this book

Power Query is a data preparation tool that enables data engineers and business users to connect, reshape, enrich, and transform their data to facilitate relevant business insights and analysis. With Power Query's wide range of features, you can perform no-code transformations and complex M code functions at the same time to get the most out of your data. This Power Query book will help you to connect to data sources, achieve intuitive transformations, and get to grips with preparation practices. Starting with a general overview of Power Query and what it can do, the book advances to cover more complex topics such as M code and performance optimization. You'll learn how to extend these capabilities by gradually stepping away from the Power Query GUI and into the M programming language. Additionally, the book also shows you how to use Power Query Online within Power BI Dataflows. By the end of the book, you'll be able to leverage your source data, understand your data better, and enrich it with a full stack of no-code and custom features that you'll learn to design by yourself for your business requirements.
Table of Contents (12 chapters)
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Using the Query Dependencies view

Once you become confident using Power Query, you can start adding a higher number of queries, combining them, and applying complex transformation logic. You can often get lost in terms of how queries were built and merged and you may need a view that allows you to map data sources and queries. In this recipe, we will see how the Query Dependencies view will allow us to quickly see what is going on in that Power Query session.

Getting ready

In this recipe, you will need to connect to Azure SQL Database with AdventureWorks data. You need to have access to a running database.

How to do it…

Once you open Power BI Desktop, perform the following steps:

  1. Go to Get data, click on More…, and browse for Azure SQL database:
    Figure 5.34 – Azure SQL database

    Figure 5.34 – Azure SQL database

  2. Enter the server name of your Azure SQL database:
    Figure 5.35 – SQL Server information

    Figure 5.35 – SQL Server information

  3. Enter authentication details:

    Figure 5.36 – Azure SQL database...

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