Abstract

Data warehouses (DW) are a rapidly developing field of both application and research. Up to now, three types of data warehouse have been proposed, which include centralized DW, data mart, and distributed DW. In this paper, a new type of data warehouse, called hierarchically distributed data warehouse (HDDW), is developed on the basis of a DW building case. HDDW-oriented OLAP is also studied and a C/S architecture for OLAP of HDDW is given.

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