Managing Information Systems
15 pages
(3750 words)
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Data warehousing rose out of a need top compile a company's interesting data that was stored in disparate database.... Data is therefore copied from operational databases, transformed and exported into a warehouse in a predetermined format that will allow it to be queried.
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... 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, primarily, a record of an enterprise's past transactional and operational information, stored in a database designed to favor efficient data analysis and reporting....