Power BI is turning 10! Tune in for a special live episode on July 24 with behind-the-scenes stories, product evolution highlights, and a sneak peek at what’s in store for the future.
Save the dateJoin us for an expert-led overview of the tools and concepts you'll need to become a Certified Power BI Data Analyst and pass exam PL-300. Register now.
I have a initial table with a variable quantity of columns, I would like to transform the columns making the operation robust, i.e not depending on the column names.
Function to be applied on all columns: extraction of the first character
Technique intended : make a list with the existing column names and apply the transformation to the list of columns.
Which is the efficient method to do so?
Solved! Go to Solution.
Hi @TomasBA ,
Try the Text.Start function. It returns the first count
characters of text
as a text value.
Text.Start - PowerQuery M | Microsoft Learn
And then try pivot/unpivot.
Pivot columns - Power Query | Microsoft Learn
Unpivot columns - Power Query | Microsoft Learn
Best Regards,
Stephen Tao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Hi @TomasBA ,
Try the Text.Start function. It returns the first count
characters of text
as a text value.
Text.Start - PowerQuery M | Microsoft Learn
And then try pivot/unpivot.
Pivot columns - Power Query | Microsoft Learn
Unpivot columns - Power Query | Microsoft Learn
Best Regards,
Stephen Tao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Check out the July 2025 Power BI update to learn about new features.
This is your chance to engage directly with the engineering team behind Fabric and Power BI. Share your experiences and shape the future.
User | Count |
---|---|
10 | |
8 | |
6 | |
6 | |
6 |