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

Earn a 50% discount on the DP-600 certification exam by completing the Fabric 30 Days to Learn It challenge.

Reply
Giada90
Helper III
Helper III

problem with relation between tables

Hi,

I have relation between a lot of tables, all bidirectional, but if I put some fields of different tables on a table object it says that it's not possible to establish relation between more fields, why?

The relations are ok and the tables are correctly related, how can I do?

Thanks

1 ACCEPTED SOLUTION
v-cgao-msft
Community Support
Community Support

Hi @Giada90 ,

 

As the error describes, the reason is that the two fields are built without a proper relationship to filter.

I created three tables for testing:

vcgaomsft_0-1659405820071.png

Relationships:

vcgaomsft_1-1659405866058.png

When we drag the customer field and the product field into the visual form and set them to not aggregate, the same error is displayed:

vcgaomsft_2-1659405926827.png

This is because [customer] does not have any relationship with [product], such as one-to-one or one-to-many. They can just both filtered by 'Date'[Date](one-to-many).

 

If you need to relate to the many-to-many dimension,please refer:

Many-to-many relationship guidance

 

After adding the unique identifier (ID) column for each order:

vcgaomsft_4-1659406947968.png

vcgaomsft_3-1659406918440.png

 

Power BI is designed to work with a Star Schema, and a good model is half the battle. 

Understand star schema and the importance for Power BI

 

Best Regards,
Gao

Community Support Team

 

If there is any post helps, then please consider Accept it as the solution to help the other members find it more quickly. If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

How to get your questions answered quickly -- How to provide sample data

View solution in original post

3 REPLIES 3
v-cgao-msft
Community Support
Community Support

Hi @Giada90 ,

 

As the error describes, the reason is that the two fields are built without a proper relationship to filter.

I created three tables for testing:

vcgaomsft_0-1659405820071.png

Relationships:

vcgaomsft_1-1659405866058.png

When we drag the customer field and the product field into the visual form and set them to not aggregate, the same error is displayed:

vcgaomsft_2-1659405926827.png

This is because [customer] does not have any relationship with [product], such as one-to-one or one-to-many. They can just both filtered by 'Date'[Date](one-to-many).

 

If you need to relate to the many-to-many dimension,please refer:

Many-to-many relationship guidance

 

After adding the unique identifier (ID) column for each order:

vcgaomsft_4-1659406947968.png

vcgaomsft_3-1659406918440.png

 

Power BI is designed to work with a Star Schema, and a good model is half the battle. 

Understand star schema and the importance for Power BI

 

Best Regards,
Gao

Community Support Team

 

If there is any post helps, then please consider Accept it as the solution to help the other members find it more quickly. If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

How to get your questions answered quickly -- How to provide sample data

Thanks!

 

MahyarTF
Memorable Member
Memorable Member

Hi,

Are you use measure in your visual ?

Would it be possible to share your sample PBIX here ?

Mahyartf

Helpful resources

Announcements
RTI Forums Carousel3

New forum boards available in Real-Time Intelligence.

Ask questions in Eventhouse and KQL, Eventstream, and Reflex.

MayPowerBICarousel

Power BI Monthly Update - May 2024

Check out the May 2024 Power BI update to learn about new features.

LearnSurvey

Fabric certifications survey

Certification feedback opportunity for the community.