A data warehouse is a logical collection of information gathered from many different operational databases used to create business intelligence that supports business analysis activities and decision-making tasks.

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A data warehouse is specifically designed to support business intelligence activities and decision-making tasks by gathering information from multiple sources and providing a unified view of the data. This differs from operational databases, which are used for daily transaction processing and may not be optimized for analytical tasks.

A Data Warehouse Is a Logical Collection of Information Gathered