Why Power Query Beats Copy/Paste
Copy/Paste is the most natural way to move data into a report – everyone starts there. And while the report…
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5 Common Power Query Mistakes (and How to Avoid Them)
Power Query is a powerful tool, but it usually „breaks” not for complicated reasons, but because of a few of…
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Date & Time Transformations in Power Query: Types, Extraction, and Locale Errors
Learn how to handle dates and time in Power Query – Date/DateTime type, extracting year and month, creating dates from text, and fixing Locale problems.
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Group By in Power Query: How to Group Data and Calculate Totals
Learn how to use Group By in Power Query – grouping data and calculating totals, averages, and counts. Simple and advanced examples.
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Conditional Column vs Custom Column in Power Query: When to Use Which
Learn the difference between Conditional Column and Custom Column in Power Query – when to use which, practical formula examples, and a common mistake.
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Unpivot and Pivot in Power Query: How to Fix Messy Tables
Learn when to use Unpivot and Pivot in Power Query – how to turn columns into rows and back, and how to avoid common mistakes.
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Merge vs Append in Power Query: How to Combine Tables Correctly
Learn the difference between Merge and Append in Power Query – when to use which, Join types, key column cleanup, and common mistakes.
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Text Transformations in Power Query: 6 Steps You’ll Use Most Often
Learn the 6 most commonly used Power Query text cleanup steps – Trim, Replace Values, Extract, Split Column, Format, and Column From Examples.
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Power Query Mistakes: Changed Type and Remove Columns Pitfalls
Learn why Changed Type and Remove Columns steps in Power Query often cause errors when data refreshes, and how to make your transformations more stable.
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Power Query Editor: How Applied Steps, the Formula Bar, and M Code Work
Learn how the Power Query Editor works – Applied Steps, the Formula Bar, and M code. Understand the transformation chain and avoid common mistakes.
