Скачать или смотреть Get a List of Unique Values Like a Pro! - Power Query Challenge 65

Get a List of Unique Values Like a Pro! - Power Query Challenge 65
Want to extract all unique product codes from a messy table—no matter which column they’re hiding in?
In this Power Query tutorial, we’ll take a table where product codes are spread across multiple columns, and turn it into a clean, de-duplicated, sorted list.
No formulas, no column expansions—just a smart combination of Power Query functions that do all the heavy lifting for you.

📦 Say goodbye to manual cleaning—Power Query helps you combine, clean, and summarize your data in seconds.

What You’ll Learn in This Video:
📌 Step 1: Understanding the Challenge
We start with a table where product codes appear across different columns. The goal?
Grab every code, no matter which column it’s in, remove blanks, ditch duplicates, and sort the final list.
Sounds simple—but try doing this manually with 10+ columns. Power Query makes it effortless.

📌 Step 2: Turning the Table into a List of Columns
Using Table.ToColumns, we convert the entire table into a list where each item is a single column's values.
It’s like lifting each column out of the table and lining them up.

📌 Step 3: Flattening Everything into One List
List.Combine takes all those separate column-lists and merges them into one big list.
Now we’ve got one list with every product code—no matter where it originally lived.

📌 Step 4: Cleaning Up the List
Next up: remove empty values using List.RemoveNulls, and get rid of duplicates using List.Distinct.
Clean, lean, and ready to go.

📌 Step 5: Sorting for a Final Touch
Finally, we use List.Sort to alphabetize or organize the values.
This step’s optional—but it’s a nice finishing touch when presenting the data.

Key Takeaways:
✔️ How to extract values across all columns without expanding anything
✔️ The power of combining multiple list functions in a single step
✔️ A repeatable method for flattening, cleaning, and de-duplicating columnar data
✔️ How to go from messy raw input to clean output—without formulas
✔️ A technique you can reuse for product codes, IDs, tags, or any repeated values

This approach works for more than just product codes—use it for survey responses, multi-choice answers, multiple tag fields, or any time you need a unique list across columns.

Try it out, and let us know what kind of data you cleaned up with this trick! 💬👇

Explore more tutorials:
🎥 Power Query Challenges Playlist:
   • Power Query: Challenges  
🎥 Dynamic Array Formulas Playlist:
   • Modern Excel Challenges  

#PowerQuery #ExcelTips #HowToLearnExcel

Links:
Challenge Author: Omid Motamedisedeh
LinkedIn:   / omidmot  
Youtube:    / @omidbi  
Website: https://www.omidbi.com/
Original Challenge Post: https://www.linkedin.com/feed/update/...
Download the Example File: https://docs.google.com/spreadsheets/...