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The Definitive Guide to Power Query (M)

You're reading from  The Definitive Guide to Power Query (M)

Product type Book
Published in Mar 2024
Publisher Packt
ISBN-13 9781835089729
Pages 758 pages
Edition 1st Edition
Languages
Authors (3):
Gregory Deckler Gregory Deckler
Profile icon Gregory Deckler
Rick de Groot Rick de Groot
Profile icon Rick de Groot
Melissa de Korte Melissa de Korte
Profile icon Melissa de Korte
View More author details

Table of Contents (19) Chapters

Preface Introducing M Working with Power Query/M Accessing and Combining Data Understanding Values and Expressions Understanding Data Types Structured Values Conceptualizing M Working with Nested Structures Parameters and Custom Functions Dealing with Dates, Times, and Durations Comparers, Replacers, Combiners, and Splitters Handling Errors and Debugging Iteration and Recursion Troublesome Data Patterns Optimizing Performance Enabling Extensions Other Books You May Enjoy
Index

Combining data

Although the process of extracting and combining data may seem straightforward at a glance, it can quickly turn into a complex and demanding task. The level of complexity largely depends on the characteristics of the data and its organization. From the perspective of this section, it’s important to understand that by combining data we mean an append operation, typically seen when consolidating files.

In the real world, data often originates from various sources and is managed by multiple users, which complicates maintaining consistency across all files. Excel workbooks, in particular, is a very common format, as Excel is used extensively across many industries for numerous data-related tasks.

In this section, we’ll delve into techniques and strategies to overcome challenges commonly faced when working with multiple Excel files. While some are specific to the nature of Excel, others are more generic and applicable across different scenarios.

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