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Relationships only work with text ID's
Riddle with Power BI relationships!
The problem resides within Power BI ( and not source) where the relationship between fact and dim will not fully work. Issue starts with the long ID’s in the dim table. As you can see from the screenshot the mapping is incorrect. But it is only incorrect if:
1. ID’s are integers ( if we convert it to text, relationships work as desired). We desire them to stay integers
2. If we use ID’s in our dim table which are more than 9 digit numbers (shorter ID’s do get mapped correctly)
So the question I guess is – is there a digit limitation on numeric ID’s upon linking tables ?
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Hi @Aleksandra_MLT ,
Through my tests, he seems to be normal.
Please update power bi desktop to the latest version and try again.
My test version:
My test data:
Best Regards,
Neeko Tang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
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Hello @Aleksandra_MLT ,
I use a 25 digit ID and it works normally.
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Thanks, @Idrissshatila , in this case it only confirms the issue resides elswhere but question remains where 🙂
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