Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Grow your Fabric skills and prepare for the DP-600 certification exam by completing the latest Microsoft Fabric challenge.

Reply
anonymous111
Frequent Visitor

concatenate multiple columns null value, remove commas, DAX

Hello everyone, 

I tried to combine 6 columns using :

Column name= 'DataSource'[Column 1]&", "&'DataSource'[Column 2]'&", "&DataSource'[Column 3]&", "& 'DataSource'[Column 4]&", "&'DataSource'[Column 5]&", "&'DataSource'[Column 6]

 

Some of the column are empty/null so as a result I am getting are:

 

text,,,,,

text1,text2,,,,

text1,text2,text4,,,

 

Basically the null value from any column ends up as extra comma at the end.

How can I remove that comma from the end?

Thanks!

 

4 REPLIES 4
Ritaf1983
Super User
Super User

Hi @anonymous111 
This is easier to resolve from PQ .
You need just 3 steps :

1. Merge columns:

Ritaf1983_0-1707878281629.png

2. replace 
'' with '

Ritaf1983_1-1707878432609.png

3. extract text from the first comma:

Ritaf1983_2-1707878700205.pngRitaf1983_3-1707878769392.png

extract the the text before last comma

Ritaf1983_4-1707878858494.png

pbix is attached

 

If this post helps, then please consider Accepting it as the solution to help the other members find it more quickly.

 




Thank you for the screenshot, but data source I am working on, it doesn't allow me to access pq. 

Hi @anonymous111 
You can use this DAX:

merged =
var
concantenated = [Column1]&","&[Column2]&","&[Column3]&","&[Column4]&","&[Column5]&","&[Column6]
var
replace_caommas=
SUBSTITUTE(concantenated,",,",",")
var
replace_caommas_repeat=
SUBSTITUTE(replace_caommas,",,",",")
var
remove_comma_first_Char =if(LEFT(replace_caommas_repeat,1)=",",
REPLACE(replace_caommas_repeat,1,1,""),replace_caommas_repeat)
RETURN
remove_comma_first_Char
 
Ritaf1983_0-1707881735812.png

The updated pbix is attached

If this post helps, then please consider Accepting it as the solution to help the other members find it more quickly.

 

Didn't work-doesn't show any error as well; no changes, is it something to do with string function? trimend function doesn't show up as well. 

 

Helpful resources

Announcements
Europe Fabric Conference

Europe’s largest Microsoft Fabric Community Conference

Join the community in Stockholm for expert Microsoft Fabric learning including a very exciting keynote from Arun Ulag, Corporate Vice President, Azure Data.

Power BI Carousel June 2024

Power BI Monthly Update - June 2024

Check out the June 2024 Power BI update to learn about new features.

RTI Forums Carousel3

New forum boards available in Real-Time Intelligence.

Ask questions in Eventhouse and KQL, Eventstream, and Reflex.