Power Query 2025: The Ultimate Data Transformation Toolkit | Beginner to Pro | What is M

*Power Query is an incredibly powerful data transformation tool in Microsoft Power BI. In this 2025 tutorial, we’ll walk you through the key features and functionalities of Power Query—enabling you to clean, shape, and prepare your data for insightful analysis.

From foundational concepts to advanced techniques in the M language, this comprehensive guide is perfect for both beginners and seasoned users. By the end, you’ll be able to seamlessly connect multiple data sources and transform raw information into actionable insights.

What You’ll Learn

Introduction to Power Query (2025)
Foundational concepts in M Language
Best practices for data cleaning and shaping
Advanced data transformation techniques
Real-world use cases

You can find source files at: https://github.com/amitchandakpbi/pow...
Working Pbix: https://github.com/amitchandakpbi/pow...

Also, Check

Power BI List Functions:    • Power Query List Functions- Power BI  

Power Query DateTime Functions:    • Power Query Date and DateTime Functions  

Power Query Text Functions:    • Power BI Tutorial Series for Beginners 133...  

Power Query Table Functions:    • Power Query Table Function  

Ads Free Learn Power BI Full Course: https://biworld.graphy.com/courses/Po...


🔍 Topics Covered:
00:00 Introduction
01:48 Power Query Overview
12:46 Unpivot Data – Transform wide tables into a long format for better analysis.
14:40 Pivot Data – Create summarized tables from raw data.
16:11 Remove Rows: Blank and Duplicate – Clean your datasets efficiently.
18:55 Fill Up and Fill Down – Fill in missing data effortlessly.
19:57 Replace Values – Replace inconsistent data values with ease.
22:20 Transpose Data – Swap rows and columns for flexible analysis.
23:42 Merge Queries – Combine datasets seamlessly using keys.
31:48 Append Queries – Stack tables for consolidated reporting.
34:38 Create Column in Power Query – Add calculated columns.
43:52 Group By – Aggregate data for quick summaries.
47:23 String Operations in Power Query – Manipulate text data efficiently.
55:41 Double Unpivot – Handle complex table transformations.
01:00:43 Cross Join in Power Query – Generate combinations of datasets.
01:05:54 What is M Language? – Understand the backbone of Power Query.
01:10:29 M Custom Functions – Learn to reuse code for automation.
01:12:49 Basics of M – Get started with M code basics.
01:28:03 Power Query Create Custom Function – Create reusable logic for tasks.
01:30:43 Power Query List Functions – Master list manipulation.
1:39:57 Power Query Text Functions – Work with text data efficiently.
1:46:39 Power Query Date Functions and Date Table – Create a dynamic date table.
2:06:02 Create Dimensions and Fact from Single Table – Transform data into analytical tables.
2:21:10 Append Excel Sheets into One Table – Consolidate multiple sheets.
2:29:53 Sort Comma-Separated Strings – Alphabetize or organize string data.
2:41:34 Split Text and Get Distinct Values – Break down strings and remove duplicates.
2:51:26 Split Column with Twist- Double split and combine data
2:54:30 Power Query Sub Category Index and Rank


Perfect for Power BI professionals, data analysts, and Excel enthusiasts, this video will revolutionize the way you work with data.

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