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Dolly123
Creator II
Creator II

Datamodel

If i don't have any unique key in tables so how we connect multilple tables each other it in data modellling like star or snowflake schema

1 Reply
ogster1974
Partner - Master II
Partner - Master II

1. Concatenate the data sets on top of each other. 

2. Look to create composite keys if you can combining non-unique fields to make them unique ie you might not have a Common Customer ID but perhaps 

Customer Name &'|'& Customer Zip Code as Customer Key

might yield some associations.

3. rename fields with the same content to align in your fact. 

4. type your datasets for easy extraction by set analysis.

5. handle all your dates via a date link and master calendar.

your data model is starting to look stary 🙂