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

Enhance your career with this limited time 50% discount on Fabric and Power BI exams. Ends August 31st. Request your voucher.

Reply
IvanKostov
Frequent Visitor

Error when importing a large table in Power BI Desktop

Hello! 

I know that this topic has been mentioned previously but I still have a couple of questions regarding it: 

In the last couple of days I have tried refreshing the biggest table in my dataset but all tries took me about an hour and I received the error:
"Failed to save modifications to the server. Error returned: 'There's not enough memory to complete this operation. Please try again later when there may be more memory available.'"

 

I tried removing relationships, calculated columns and imported columns from the table and I still hardly managed to refresh it.
The whole dataset is only about 3GB. When I do a refresh however it can be easily interupted or i get the no memory error.

My questions are:
1. What operation from the listed above has the greatest calculation costs
(having many relationships, many rows/columns, calculated columns)?
2. Would a computer with more processing power solve this issue? 

 

 

Thank you in advance!

 

1 ACCEPTED SOLUTION
Brunner_BI
Super User
Super User

You don't have enough RAM, this could be because the data transformations are complex, the size of the data, calculated columns etc.

------------------------------------
Brunner BI focusing on Microsoft Power BI development and consulting
Developers of external tool "Measure Killer"
My blog

View solution in original post

2 REPLIES 2
IvanKostov
Frequent Visitor

Thanks for the feedback! 

Brunner_BI
Super User
Super User

You don't have enough RAM, this could be because the data transformations are complex, the size of the data, calculated columns etc.

------------------------------------
Brunner BI focusing on Microsoft Power BI development and consulting
Developers of external tool "Measure Killer"
My blog

Helpful resources

Announcements
July 2025 community update carousel

Fabric Community Update - July 2025

Find out what's new and trending in the Fabric community.

July PBI25 Carousel

Power BI Monthly Update - July 2025

Check out the July 2025 Power BI update to learn about new features.