Книга: Abdeltawab M. Hendawi «Data Warehousing»
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Производитель: "LAP Lambert Academic Publishing" Building a Data Warehouse requires focusing closely on understanding three main areas; the source area, the destination area, and the mapping area (ETL processes). The source area has standard models such as entity relationship diagram, and the destination area has standard models such as star schema, but the mapping area has no standard model till now. During the last few years, researchers and developers had proposed various attempts to put a standard conceptual design of ETL processes in data warehousing. These attempts try to represent the main mapping activities at the conceptual level. Due to the variation and limitations of the proposed trials, this work aims at presenting these conceptual modeling techniques, classify them into broad approaches, and show the features of each. In addition, we introduce a novel model proposed for conceptual designing of ETL processes in data warehouse systems. This model is built upon the enhancement of the previous trials by... ISBN:9783659175855 Издательство: "LAP Lambert Academic Publishing" (2012)
ISBN: 9783659175855 |
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См. также в других словарях:
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Data Warehousing — The electronic storage of a large amount of information by a business. Warehoused data must be stored in a manner that is secure, reliable, easy to retrieve and easy to manage. The concept of data warehousing originated in 1988 with the work of… … Investment dictionary
data warehousing — Computer technology enabling data from multiple operational processing systems to be brought together into a single source, which can then be accessed and interrogated. The data can be both current and historical. Warehousing differs from… … Big dictionary of business and management
data warehousing — A method of storing very large amounts of data, usually historical transaction processing data, for later analysis and reporting. The data warehouse is accessed by software capable of extracting trends from the raw data and creating… … Dictionary of networking
