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

The Power BI Data Visualization World Championships is back! Get ahead of the game and start preparing now! Learn more

Reply
gsmjlc
Regular Visitor

Data Refresh ( Basic)

Hi all,

 

This may sound really dumb but I have created a report and want to update the data.

Do I need to overwrite the file each time with the new dataset?

How would I go about building a report that shows changes over a period of time (days/weeks/months) etc?

 

I have a sneaking suspicion I may just be being rather stupid but hey you don't ask, you don't get (any further in your reports!!!)

 

Thanks,

 

Alan.

 

1 REPLY 1
v-ljerr-msft
Microsoft Employee
Microsoft Employee

Hi @gsmjlc,

This may sound really dumb but I have created a report and want to update the data.

Do I need to overwrite the file each time with the new dataset?



No, you don't need to. To better understand data refresh in Power BI, you can refer to this article.

How would I go about building a report that shows changes over a period of time (days/weeks/months) etc?

Generally, you may need to use DAX functions to create some calculate measures/columns according to your needs, then show the measures/columns on your report, with your date columns(i.e. days/weeks/months/quarters/years) as Slicers, with which you can pick up any period of time you want to show.

 

In addition, I would suggest you go through the Power BI Guided Learning to start your learning journey through Power BI with this sequenced collection of courses, and understand the extensive and powerful capabilities of Power BI. Smiley Happy

 

Regards

Helpful resources

Announcements
Power BI DataViz World Championships

Power BI Dataviz World Championships

The Power BI Data Visualization World Championships is back! Get ahead of the game and start preparing now!

November Power BI Update Carousel

Power BI Monthly Update - November 2025

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

FabCon Atlanta 2026 carousel

FabCon Atlanta 2026

Join us at FabCon Atlanta, March 16-20, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.