ssas - Data Warehouse - Multidimensional Model - Fact Table is Smaller than Dimension Table -


i working on data warehouse project customer dimension table larger fact table. dimension , fact tables created crm system.

the fact table monitors activities such letter sent customer or customer calls assistance. half of customers have no activities , remaining customers have few activities; of customers have activities have single activity.

i not sure if star schema best solution project. have worked on similar projects & solution.

if many of dimension members not related facts @ all. sugest filter unused dimension members during etl process.

so a

     select customer_id, name dil.customers         customer_id in         (select customer_id dil.calls)

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