DVQ: Towards visual query processing of XML database systems

被引：2
|
作者：
Zheng, SH [1 ]
Zhou, AY
Zhang, L
Lu, HJ
机构：
[1] Fudan Univ, Dept Comp Sci & Engn, Shanghai 200433, Peoples R China
[2] Hong Kong Univ Sci & Technol, Dept Comp Sci, Hong Kong, Peoples R China
来源：
WORLD WIDE WEB-INTERNET AND WEB INFORMATION SYSTEMS | 2003年 / 6卷 / 02期
关键词：
XML; DTD; visual query; path expressions;
D O I：
10.1023/A:1023626806508
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
XML has been recognized as a promising language for data exchange over the Internet. A number of query languages have been proposed for querying XML data. Most of those languages are path-expression based. One difficulty in forming path-expression based queries is that users have to know the structure of XML data against which the queries were issued. In this paper, we describe a DTD-driven visual query interface for XML database systems. With such an interface, a user can easily form path-expression based queries by clicking elements in the DTD tree displayed on the screen and supplying conditions if necessary. The interface and the query generation process are described in detail.
引用
收藏
页码：233 / 253
页数：21
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