%0 Journal Article
%T Query-Optimization Based Virtual Data Warehouse Model<br>基于查询优化的虚拟数据仓库模型
%A XU Qiang LI Wen-Ye GU Yu-Qing
%A <br>徐强
%J 计算机科学
%D 2003
%I 
%X The technology of virtual data warehouses catches more and more interests of people. In this paper, a Query-Optimization Based Virtual Data Warehouse (QVDW)model is presented, which not only has all the advantages that a virtual data warehouse has,but also can change bottom layer data structures and the model itself according to users' various query requests. The aim is to offer customized service to OLAP (on-line analysis processing)users.
%K Virtual data warehouse
%K OLAP (on-line analysis processing)<br>查询优化
%K 虚拟数据仓库
%K 数据库
%K 数据模型
%K 数据处理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=07428CB66E00E2BC&yid=D43C4A19B2EE3C0A&vid=340AC2BF8E7AB4FD&iid=0B39A22176CE99FB&sid=E84BBBDDD74F497C&eid=8BD23BD67BF01A5C&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=6