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1 Dimension 1 Fact table connected by 2 Keys


1 Dimension 1 Fact table connected by 2 Keys

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michaeleusebio721
michaeleusebio721
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Hi, I hope all is well.

I'm having a dilemma in my cube setup and i hope you guys can help.

I have 1 cube dimension created from a UNION of 2 Dimension tables leaving me with duplicate keys on 1 column. To get around this, in my DSV I connect this dimension to the FACT table with 2 Relationships. Seen below:



Somehow this relationship is not being followed when I view the cube.

have you guys encountered this?
Koen Verbeeck
Koen Verbeeck
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Two relationships are two seperate relationships (like role playing dimensions); it's not the same as one relationship with a compound key of 2 columns.

I think it would be more ideal to create a new surrogate key in your UNION ALL statement (you could use ROWNUMBER()) and create a relationship using that new surrogate key.

If you use ROWNUMBER(), you better do a full process each time, as the keys might change.


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michaeleusebio721
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Hi Koen!
Thanks for your response!

I did try your suggestion and it worked! I used a concatination of the 2 keys and some other character to make sure every key is unique and also did the same on my Fact table.

Thanks again for your help.
Koen Verbeeck
Koen Verbeeck
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michaeleusebio721 (7/3/2013)
Hi Koen!
Thanks for your response!

I did try your suggestion and it worked! I used a concatination of the 2 keys and some other character to make sure every key is unique and also did the same on my Fact table.

Thanks again for your help.


No problem, glad to help and thanks for posting back!


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