Advanced Data Warehouse Design: From Conventional to Spatial and Temporal Applications By Elzbieta Malinowski, Esteban ZimányiEnglish | PDF | 2009 | 457 Pages | ISBN : 3540744045 | 5.22 MB
A data warehouse stores large volumes of historical data required for analytical purposes. This data is extracted from operational databases; transformed into a coherent whole using a multidimensional model that includes measures, dimensions, and hierarchies; and loaded into a data warehouse during the extraction-transformation-loading (ETL) process.