Star schema - Multiple level

[julien-rivley]

Hello,

I have a fairly basic question but I can't find the answer...your advice is much appreciated!

I developped my star schema according to 5 dimensions:
Date, Product, Customer, Channel, Data Name.

My fact table therefore has 6 columns:
Date, Product, Customer, Channel, Data Name, Value

Now, I receive some data which are only by some of the dimensions (Example: sales target by Product - Channel).

Would you recommend to create a specific table for this new "data level" or should I put it in my regular fact table with some column defined as "Null"?

Thanks!

Julien

[dax]

Hi julien-rivley,

I am not clear about your requirement if possible, could you please inform me in details?

In your scenario, it seems that you want to show all diemsion column in the same table, right? If so I don't recommend you do this, if you want to achieve this goal, you might need to make sure all dimeniosns have relationship or yuou need to combine them into the same table. Sometimes, it will prompt process error. So I think separate placement is clearer.

Best Regards,
Zoe Zhi

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