摘要
本文提出一种新的异构数据查询技术,该技术可以有效地对异构数据进行统一查询,从而避免了传统数据集成中语义转换的问题,提高了查询效率,在理论和实践中具有广泛的应用价值。
The paper presents a new query technology of heterogeneous data source which will query efficiently in order to avoid time-cost semantic transformatio n. It has been proved to be valuable not only in the theory aspect but also in t he application field.
出处
《微电子学与计算机》
CSCD
北大核心
2004年第8期63-64,共2页
Microelectronics & Computer
关键词
异构数据
数据集成
半结构化数据
Heterogeneous data,Data integration,Semistructured data
