May 2024
Intermediate to advanced
325 pages
12h 2m
English
Content preview from Distributed Database Systems, 1st Edition by Chhanda Ray
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Distributed Database Systems
that provides current and historical decision support information to users. In 1993, W.H. Inmon of-
fered the following formal defi nition for the data warehouse.
A data warehouse is a subject-oriented, integrated, time-variant, non-volatile collection of
data in support of management’s decision-making process.
Subject-oriented – A data warehouse is organized around the major subjects of an enterprise such as
customer, products, and sales. Data are organized according to subject instead of application. The data
organized by subject obtains only the information necessary for the decision support processing.
Non-volatile ...
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