Skip to main content
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 

Calling all Data Engineers! Fabric Data Engineer (Exam DP-700) live sessions are back! Starting October 16th. Sign up.

Reply
Anonymous
Not applicable

Sum Values with an Intermediate Lookup Table

‎09-17-2020 10:15 AM

I have two tables, Courses and Lessons.  A course can have muliple lessons.  A lesson can be in many courses.  Because of this, I have a lookup table (~Lookup_Couse-Lessons) with a 1:Many relationship on each side.  I need a measure for a visual that will calculate the total Course Duration by summing the Duration in Hours for each Lesson within a course.

 

I'm new to DAX, and confused.  I've spent a few days on this, playing with SUMX, FILTER, CALCULATE, and more.  I'm pulling my hair out, and would really appreciate any help!

 

 

daxRelationship

Message 1 of 3
963 Views
0
1 ACCEPTED SOLUTION
CNENFRNL
Community Champion
Community Champion

‎09-17-2020 11:48 AM

Hi, @Anonymous , I assume you use a matrix with Courses[Course] in row field, you may try such a measure to sum up durations of lessons composed in corresponding courses.

Sum Duration =
CALCULATE ( SUM ( Lessons[Duration in Hours] ), '~Lookup_Couse-Lessons' )

Thanks to the great efforts by MS engineers to simplify syntax of DAX! Most beginners are SUCCESSFULLY MISLED to think that they could easily master DAX; but it turns out that the intricacy of the most frequently used RANKX() is still way beyond their comprehension!

DAX is simple, but NOT EASY!

View solution in original post

Message 2 of 3
934 Views
0
2 REPLIES 2
CNENFRNL
Community Champion
Community Champion

‎09-17-2020 11:48 AM

Hi, @Anonymous , I assume you use a matrix with Courses[Course] in row field, you may try such a measure to sum up durations of lessons composed in corresponding courses.

Sum Duration =
CALCULATE ( SUM ( Lessons[Duration in Hours] ), '~Lookup_Couse-Lessons' )

Thanks to the great efforts by MS engineers to simplify syntax of DAX! Most beginners are SUCCESSFULLY MISLED to think that they could easily master DAX; but it turns out that the intricacy of the most frequently used RANKX() is still way beyond their comprehension!

DAX is simple, but NOT EASY!

Message 2 of 3
935 Views
0
Anonymous
Not applicable
In response to CNENFRNL

‎09-17-2020 12:18 PM

Brilliant, thank you!! 

Message 3 of 3
926 Views
0

Helpful resources

Announcements
FabCon Global Hackathon Carousel

FabCon Global Hackathon

Join the Fabric FabCon Global Hackathon—running virtually through Nov 3. Open to all skill levels. $10,000 in prizes!

October Power BI Update Carousel

Power BI Monthly Update - October 2025

Check out the October 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.

View All