Question: Which statements about data warehousing is NOT correct? The data warehouse should be separate from the operational system. Drill - down is a data -

Which statements about data warehousing is NOT correct?
The data warehouse should be separate from the operational system.
Drill-down is a data-mining tool available to users of OLAP.
Data cleansing is a process of transforming data into standard form.
Normalization is a requirement of databases included in a data warehouse.
Which statements about data warehousing is NOT

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