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
latheesh89
Helper II
Helper II

Help - Find date difference between date columns from different tables

Dear Techie,

 

I have two fact tables (Census & Events) and they are connected to a common dimensions like Patient, Date. I want to create a measure that will give the date difference between Admission date (Census Fact) and Event date (Event Fact) in days.

 

Relationships:

 

Census             Date

Census Date*:1     Date

 

Event             Date

Event Date*:1     Date

 

Census       Patient

PatientKey PatientKey

 

Event          Patient

PatientKey  PatientKey

 

Example:

When I add Event Date and Admission Date for a particular patient, this is how the report looks. I want to add a measure next to this that should give the difference in days

 

image001.png

 

I have tried many options but none is working. Can anyone please help me on this?

 

Thanks,

Latheesh

3 REPLIES 3
parry2k
Super User
Super User

@latheesh89 read this post to get your answer quickly

 

https://community.powerbi.com/t5/Community-Blog/How-to-Get-Your-Question-Answered-Quickly/ba-p/38490



Subscribe to the @PowerBIHowTo YT channel for an upcoming video on List and Record functions in Power Query!!

Learn Power BI and Fabric - subscribe to our YT channel - Click here: @PowerBIHowTo

If my solution proved useful, I'd be delighted to receive Kudos. When you put effort into asking a question, it's equally thoughtful to acknowledge and give Kudos to the individual who helped you solve the problem. It's a small gesture that shows appreciation and encouragement! ❤


Did I answer your question? Mark my post as a solution. Proud to be a Super User! Appreciate your Kudos 🙂
Feel free to email me with any of your BI needs.

@parry2k  As suggested, I have added the details. Please let me know if you required anymore details.

@latheesh89 so you are looking for difference between event date and admission date?

 

add a new columna as below

 

# of Days = DATEDIFF( Table[Admission Date], Table[Event Date], DAY )


Subscribe to the @PowerBIHowTo YT channel for an upcoming video on List and Record functions in Power Query!!

Learn Power BI and Fabric - subscribe to our YT channel - Click here: @PowerBIHowTo

If my solution proved useful, I'd be delighted to receive Kudos. When you put effort into asking a question, it's equally thoughtful to acknowledge and give Kudos to the individual who helped you solve the problem. It's a small gesture that shows appreciation and encouragement! ❤


Did I answer your question? Mark my post as a solution. Proud to be a Super User! Appreciate your Kudos 🙂
Feel free to email me with any of your BI needs.

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.