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Microsoft Power BI Cookbook

Microsoft Power BI Cookbook

By : Greg Deckler, Powell
4.8 (12)
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Microsoft Power BI Cookbook

Microsoft Power BI Cookbook

4.8 (12)
By: Greg Deckler, Powell

Overview of this book

The complete everyday reference guide to Power BI, written by an internationally recognized Power BI expert duo, is back with a new and updated edition. Packed with revised practical recipes, Microsoft Power BI Cookbook, Second Edition, helps you navigate Power BI tools and advanced features. It also demonstrates the use of end-to-end solutions that integrate those features to get the most out of Power BI. With the help of the recipes in this book, you’ll gain advanced design and development insight, practical tips, and guidance on enhancing existing Power BI projects. The updated recipes will equip you with everything you need to know to implement evergreen frameworks that will stay relevant as Power BI updates. You’ll familiarize yourself with Power BI development tools and services by going deep into the data connectivity, transformation, modeling, visualization, and analytical capabilities of Power BI. By the end of this book, you’ll make the most of Power BI’s functional programming languages of DAX and M and deliver powerful solutions to common business intelligence challenges.
Table of Contents (16 chapters)
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14
Other Book You May Enjoy
15
Index

Pushing Query Processing Back to Source Systems

During the scheduled refresh of datasets retrieving from on-premises sources, any query transformations not executed by the source system will require local resources of the M (Mashup) engine of the on-premises data gateway server. With larger datasets, and potentially with other scheduled refreshes occurring on the same gateway server at the same time, it becomes important to design M queries that take full advantage of source system resources via query folding. Although transformations against some sources such as files will always require local resources, in many scenarios M queries can be modified to help the engine generate an equivalent SQL statement and thus minimize local resource consumption.

In this recipe, a process and list of items is provided to identify queries not currently folding and the potential causes. Additionally, a query based on an existing SQL statement is redesigned with M expressions to allow query folding...

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