摘要： . Level of detail: The OLTP layer stores data with a very high level of detail, whereas data in the Data Warehouse is compressed for high-performance access (aggregation).. History: Archiving data in the OLTP area means it is stored with minimal history. The Data Warehouse area requires comprehensiv 阅读全文

摘要： In a Google search for business intelligence, http://whatis.techtarget.com/ attributed the term business intelligence to a September, 1996 Gartner Group report: Business intelligence (BI) is a broad category of applications and technologies for gathering, storing, analyzing, and providing access to 阅读全文

摘要： A warehouse is a subject-oriented, integrated, time-variant and non-volatile collection of data in support of management's decision making process. Also can define as : the subset of a Business Intelligence tool set responsible for modeling, structuring, storing as well as extraction translation 阅读全文