Show rows that are NOT in linked tables results

[russellj]

Hello,

I have the following example tables:

Table1- Course information

CourseID1 CourseName1

CourseID2 CourseName2

CourseID3 CourseName3

Table2- Users in courses

UserID1 CourseID2

UserID2 CourseID3

Table3 - User information

UserID1 Major1

UserID2 Major2

UserID3 Major3

UserID4 Major4

Table1 is linked to Table2 on CourseID to show the users in the course, then Table2 is linked to Table3 on UserID to show further information about the users.

I want to show under-represented majors, so in this case, I want Major3 and Major4 to display in say, a multi-row card as it is not present in any courses.

How can I show the values NOT present in the filter? "Show items with no data" does not seem to work.

Thanks!

[Anonymous · Accepted solution]

Hi @russellj ,

How are the relationships set up?

What are the cardinalities and cross filter directions?

Below is my sample.

Major3 and major4 are displayed.

Best Regards,

Stephen Tao

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[russellj]

Thank you, it was my relationship setup. I had Users > Users in Courses setup with the proper one to many, but the cross-filter direction being set to both was breaking it. I changed it to single direction and then with items w/ no data enabled, they did show up. Now I can use items with no data combined with a BOTTOM N by count filter to show the under-represented majors.

Thanks for pointing me in the right direction.