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Excel Power Pivot & Power Query For Dummies, 2nd Edition
book

Excel Power Pivot & Power Query For Dummies, 2nd Edition

by Michael Alexander
March 2022
Beginner to intermediate content levelBeginner to intermediate
288 pages
7h 21m
English
For Dummies
Content preview from Excel Power Pivot & Power Query For Dummies, 2nd Edition

Chapter 8

Introducing Power Query

IN THIS CHAPTER

check Spelling out the Power Query basics

check Understanding Query steps

check Managing existing queries

check Overviewing query actions

In information management, the term ETL (Extract, Transform, Load) refers to the three separate functions typically required to integrate disparate data sources: extract, transform, and load. The extraction function refers to the reading of data from a specified source and extracting a desired subset of data. The transformation function refers to the cleaning, shaping, and aggregating of data to convert it to the desired structure. The loading function refers to the actual importing or writing of the resulting data to a target location.

Excel analysts have been manually performing ETL processes for years — although they rarely call it ETL. Every day, millions of Excel users manually pull data from a source location, manipulate that data, and integrate it into their reporting. This process requires lots of manual effort.

Power Query enhances the ETL experience by offering an intuitive mechanism to extract data from a wide ...

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Publisher Resources

ISBN: 9781119844488Purchase Link