Which one of the following statements, relating to data warehouses and data marts, is NOT correct?

Question

Which one of the following statements, relating to data warehouses and data marts, is  NOT  correct?

Accepted Answer

A data mart is the backbone for data mining and business intelligence software.

Answer

A relational or multidimensional database model is normally used for data warehouses.

Answer

Running queries on a data mart is much faster than on a data warehouse.

Answer

A data warehouse is “read-only” as it is only updated by the source databases.

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