Power BI Append Queries Tutorial | Combine Tables Step-by-Step (Real Project)
In this video, you will learn how to append queries in Power BI using Power Query and combine multiple tables into a single dataset using a real-world project example.
Appending queries is one of the most important Power Query concepts used in real-world data projects. In this tutorial, we will learn how to stack or combine tables with the same structure and automate data refresh using folder-based append.
This video is perfect for:
Power BI beginners
Data Analysts & Data Engineers
Interview and real project preparation
🔑 Key Topics Covered
✔ What is Append Queries in Power BI
✔ Difference between Merge vs Append
✔ Append two tables and multiple tables
✔ Real-world example (Sales 2020 & 2021)
✔ Folder-based append automation (Pro Tip)
✔ Best practices for appending large datasets
🎯 What You Will Learn
✅ How to stack multiple tables in Power Query
✅ When to use Append vs Merge
✅ Automate monthly/annual data combining
✅ Interview-level understanding of Power Query
🧠 Pro Tip (Very Important)
In this video, I also show how to append all files from a folder, so when new files are added, Power BI automatically updates the dataset on refresh. This technique is widely used in enterprise projects.
🕒 TIMESTAMPS (Retention Boost)
00:00 – Introduction & Use Case
0:30 – What is Append Queries
01:00 – Merge vs Append (Concept)
02:20 – Append Two Tables (Live Demo)
03:40 – Append Multiple Tables
4:30 – Folder-Based Append Automation (Pro Tip)
5:00 – Common Errors & Best Practices
6:00 – Summary & Next Video
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