Abstract: Web is not a traditional database. We always can't obtain the query results quickly and efficiently when querying Web information by a WWWnavigator. The data model of information library of Web sites, the relation algebra and the creation of relation views are discussed in this paper. The presentation and reply of Web site information queries become efficient based on the data scheme.

摘要： 并不是传统的关系数据库Web[3]。在浏览器上进行信息搜索时,常常难于快速有效地得到查询结果。就站点信息库的数据WWWWeb模型化、关系代数演算及关系视图的建立加以探讨,基于这一模式结构的站点信息查询便易于表达和实现。Web

关键词: 查询, 模式, 视图, 数据模型

CLC Number: 

• TP393.03