摘要
The technology of virtual data warehouses catches more and more interests of people. In this paper,aQuery-Optimization Based Virtual Data Warehouse (QVDW)model is presented,which not only has all the advantagesthat a virtual data warehouse has,but also can change bottom layer data structures and the model itself according tousers' various query requests. The aim is to offer customized service to OLAP (on-line analysis processing)users.
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.
出处
《计算机科学》
CSCD
北大核心
2003年第2期63-65,86,共4页
Computer Science
