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What is a Data warehouse?

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kumar BI
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What is mean by data warehouse? 

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Ram DBA
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A data warehouse is an organized collection of logically related data. 

Datawarehouse refers to a central repository of data where the data is assembled from multiple sources of information. Those data are consolidated, transformed and made available for the mining as well as online processing. Warehouse data also have a subset of data called Data Marts.

Hope I answered your question?

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Yana KLL
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Data warehouses (DWs) are small databases that collect and keep data for particular business units and address department-specific needs. If you are interested in this theme, I would recommend paying attention , which is complex structures divided into small databases that store information for all business units and respond to enterprise-level questions. Thus, it’s better to focus on enterprise warehouses to simplify query processing and cover the whole range of functionality.

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