Forum Discussion
Data Modeling Question
Hello, I need advice with a data modeling problem. Below you may find 3 screenshots and attached PBIX file.
Screenshots below show:
- What my report looks like
- The problem I am experiencing
- My current data model
This data model contains several linking tables for many-to-many relationship between Recommendations table and different geography levels tables (State, County, City). I know that some relationships need to be changed in order to fix this problem but I'm not sure which ones.
Screenshot 1 - What my report looks like:
p
Screenshot 2 - The problem I am experiencing:
p
Screenshot 3 - My current data model:
p
Thank you!
3 Replies
Anonymous , I removed some bi-directional relations. But this model needs changes. recommandation will merge with State_rec , country_rec and City_rec and create three fact recommandation_State_rec , recommandation_country_rec
City_rec_recommandatio. They will not join with each other
https://www.sqlbi.com/articles/the-importance-of-star-schemas-in-power-bi/
Thanks for looking into this.
I have tried your proposed solution but it breaks cross filtering across other visuals. See below screenshot.
Can you please elaborate on how you propose to change the data model. I am afraid I don't fully understand your previous explanation. I need to keep cross-filter both directions for State > County > City relationships.
Also I assumed state_recs, county_recs and city_recs are already considered fact tables since they contain foreign keys from recommendations and states/counties/cities respectively.
