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

The Power BI DataViz World Championships are on! With four chances to enter, you could win a spot in the LIVE Grand Finale in Las Vegas. Show off your skills.

Reply
Anonymous
Not applicable

Star schema

Hi, 

 

I have a normal star schema in my model but there are two related dimensions that i am unsure about (see below for picture). 

 

I am only able to connect the ID from "no of products table" to the main Fact table. That is fine but it would mean that i need to create a relationship between these two and that would break my clean star schema--one arm of the star would have an "extended dimension". Question is... is this best practice? what would you do alternatively? 

 

I know i can merge tables but the higher granularity of the "serial number of products" table will force me to make a many to many relationship which i do not want. 

 

evko_0-1664361667596.png

 

1 ACCEPTED SOLUTION
jcalheir
Solution Supplier
Solution Supplier

Hi

 

To me it seems logical to join those tables.

 

You can follow other types of models in Power BI and still be following the best practices. It all depends on the analysis you want to make.

 

If you want, you can share your model and the relationships and we can try to help.

 

Also read this article abour modeling:

https://radacad.com/power-bi-basics-of-modeling-star-schema-and-how-to-build-it

 

Kind regards,
José
Please mark this answer as the solution if it resolves your issue.
Appreciate your kudos! 🙂

View solution in original post

1 REPLY 1
jcalheir
Solution Supplier
Solution Supplier

Hi

 

To me it seems logical to join those tables.

 

You can follow other types of models in Power BI and still be following the best practices. It all depends on the analysis you want to make.

 

If you want, you can share your model and the relationships and we can try to help.

 

Also read this article abour modeling:

https://radacad.com/power-bi-basics-of-modeling-star-schema-and-how-to-build-it

 

Kind regards,
José
Please mark this answer as the solution if it resolves your issue.
Appreciate your kudos! 🙂

Helpful resources

Announcements
Feb2025 Sticker Challenge

Join our Community Sticker Challenge 2025

If you love stickers, then you will definitely want to check out our Community Sticker Challenge!

Jan NL Carousel

Fabric Community Update - January 2025

Find out what's new and trending in the Fabric community.