In computing, a data warehouse (DW, DWH), or an enterprise data warehouse (EDW), is a system used for reporting and data analysis. Integrating data from one or more disparate sources creates a central repository of data, a data warehouse (DW). Data warehouses store current and historical data and are used for creating trending reports for senior management reporting such as annual and quarterly comparisons.
The data stored in the warehouse is uploaded from the operational systems (such as marketing, sales, etc., shown in the figure to the right). The data may pass through an operational data store for additional operations before it is used in the DW for reporting.Continue Reading...
The data stored in the warehouse is uploaded from the operational systems (such as marketing, sales, etc., shown in the figure to the right). The data may pass through an operational data store for additional operations before it is used in the DW for reporting.Continue Reading...
From Wikipedia, the free encyclopedia
How Data Warehouse Works
Data Warehouse Books
Data Warehousing Fundamentals: A Comprehensive Guide for IT Professionals By Paulraj PonniahData Warehousing: Using the Wal-Mart Model By Paul Westerman
Data Warehousing: Architecture and Implementation By Mark Humphries, Michael W. Hawkins
Data Warehousing Fundamentals for IT Professionals By Paulraj Ponniah
Data Warehouses and OLAP: Concepts, Architectures, and Solutions edited by Robert Wrembel, Christian Koncilia
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