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HamidBee
Power Participant
Power Participant

How can I best create a data model from these tables?

I am trying to create a data model from these tables but I'm not sure of the best way to split the tables and reorganize them would be. I'm familar with the star schema and normalization. However I'm just not sure what principal to apply when spltting and regrouping columns. Any suggestions would be greatly appreciated.

 

Data Model Tables.jpg

3 REPLIES 3
lbendlin
Super User
Super User

You are missing a couple of dimensions. Customer/delinquent; Officer/agent; Dates and probably a few more.

 

You have multiple facts (arraignments, appeals etc) that you likely need to treat as independent facts (ie not linked to each other, only linked from the dimensions

 

For yor modeling you only need to focus on the linking (key) columns, you can collapse the rest 

Thanks for your reply. I'll definitely give it a go and see where it takes me. I tried using Table Analyzer in Access just to normalize one of the tables:

 

Correspondance_Received_with_Types.jpg

 

Using 'Table Analyzer' in Access this is what it broke it down to:

 

Table Analyzer.jpg

 

I'm new to normalization but something tells me this is wrong. 

There are many levels of normalization (from First Form to Sixth Form) - it's up to you to find a balance between them depending on your actual business scenario. No need to go all scientific on this.

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