You're reading from Mastering Microsoft Power BI – Second Edition - Second Edition

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Published inJun 2022

PublisherPackt

ISBN-139781801811484

Edition2nd Edition

Concepts

Business Intelligence

Authors (2):

Gregory Deckler

Brett Powell

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Types of Power Query M queries

In Chapter 2, Preparing Data Sources, SQL views were created, data sources configured, and the Power BI Desktop environment options applied. With these tasks accomplished, the dataset designer can finally start developing the data retrieval queries and parameters of the dataset. Power Query (M) queries are the means by which data sources are connected to and data imported into Power BI datasets. M queries are necessary to connect to data sources such as SQL views and can also perform data transformation as required.

The Power Query M language is a functional coding language more formally called the Power Query Formula Language. M includes over 700 functions that are used to connect to data and perform transformations of that data. The lines of M code that connect to and transform data are called a query.

There are a number of different types of queries that serve different purposes, including:

Data source parameters
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Mastering Microsoft Power BI – Second Edition - Second Edition

Published in: Jun 2022Publisher: PacktISBN-13: 9781801811484

Authors (2)

Gregory Deckler

Greg Deckler is Vice President of the Microsoft Practice at Fusion Alliance and has been a professional technology systems consultant for over 25 years. Internationally recognized as an expert in Power BI, Greg Deckler is a Microsoft MVP for Data Platform and a superuser within the Power BI community with over 100,000 messages read, more than 11,000 replies, over 2,300 answers, and more than 75 entries in the Quick Measures Gallery. Greg founded the Columbus Azure ML and Power BI User Group (CAMLPUG) and presents at numerous conferences and events, including SQL Saturday, DogFood, and the Dynamic Communities User Group/Power Platform Summit.
Read more about Gregory Deckler

Brett Powell

Brett Powell is the owner of and business intelligence consultant at Frontline Analytics LLC, a data and analytics research and consulting firm and Microsoft Power BI partner. He has worked with Power BI technologies since they were first introduced as the PowerPivot add-in for Excel 2010 and has been a Power BI architect and lead BI consultant for organizations across the retail, manufacturing, and financial services industries. Additionally, Brett has led Boston's Power BI User Group, delivered presentations at technology events such as Power BI World Tour, and maintains the popular Insight Quest Microsoft BI blog.
Read more about Brett Powell

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Types of Power Query M queries

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