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96 Common Challenges in Power Query

64,19 €*

Sofort verfügbar, Lieferzeit: 1-3 Tage

Produktnummer: 18cc142c7d36c84117ac9fb86ca04b3bf6
Autor: Motamedisedeh, Omid
Themengebiete: Advanced Power Query Data extraction Data transformation Error handling Excel Extract, Transform, Load Power BI data manipulation Power Query Power Query functions Power Query problem-solving
Veröffentlichungsdatum: 20.06.2025
EAN: 9798868812873
Sprache: Englisch
Seitenzahl: 684
Produktart: Kartoniert / Broschiert
Verlag: APRESS
Untertitel: Practical Solutions for Mastering Data Transformation in Excel and Power BI
Produktinformationen "96 Common Challenges in Power Query"
This comprehensive guide is designed to address the most frequent and challenging issues faced by users of Power Query, a powerful data transformation tool integrated into Excel, Power BI, and Microsoft Azure. By tackling 96 real-world problems with practical, step-by-step solutions, this book is an essential resource for data analysts, Excel enthusiasts, and Power BI professionals. It aims to enhance your data transformation skills and improve efficiency in handling complex data sets.Structured into 12 chapters, the book covers specific areas of Power Query such as data extraction, referencing, column splitting and merging, sorting and filtering, and pivoting and unpivoting tables. You will learn to combine data from Excel files with varying column names, handle multi-row headers, perform advanced filtering, and manage missing values using techniques such as linear interpolation and K-nearest neighbors (K-NN) imputation. The book also dives into advanced Power Query functions such as Table.Group, List.Accumulate, and List.Generate, explored through practical examples such as calculating running totals and implementing complex grouping and iterative processes. Additionally, it covers crucial topics such as error-handling strategies, custom function creation, and the integration of Python and R with Power Query.In addition to providing explanations on the use of functions and the M language for solving real-world challenges, this book discusses optimization techniques for data cleaning processes and improving computational speed. It also compares the execution time of functions across different patterns and proposes the optimal approach based on these comparisons.In today’s data-driven world, mastering Power Query is crucial for accurate and efficient data processing. But as data complexity grows, so do the challenges and pitfalls that users face. This book serves as your guide through the noise and your key to unlocking the full potential of Power Query. You’ll quickly learn to navigate and resolve common issues, enabling you to transform raw data into actionable insights with confidence and precision. What You Will LearnMaster data extraction and transformation techniques for various Excel file structuresApply advanced filtering, sorting, and grouping methods to organize and analyze dataLeverage powerful functions such as Table.Group, List.Accumulate, and List.Generate for complex transformationsOptimize queries to execute fasterCreate and utilize custom functions to handle iterative processes and advanced list transformationImplement effective error-handling strategies, including removing erroneous rows and extracting error reasonsCustomize Power Query solutions to meet specific business needs and share custom functions across files Who This Book Is ForAspiring and developing data professionals using Power Query in Excel or Power BI who seek practical solutions to enhance their skills and streamline complex data transformation workflows

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