Describe in detail the relationship between independent data marts and a federated enterprise data

Describe in detail the relationship between independent data marts and a federated enterprise data

Describe in detail the relationship between independent data marts and a federated enterprise data warehouse architecture.
Describe in detail the relationship between independent data marts and a federated enterprise data warehouse architecture.

2. What is meant by data aggregation within a data warehouse? Why was data aggregation commonly done in early­generation data warehouses?


 

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