NDLI: GXQuery: A GML spatial data query language

Content Provider	IEEE Xplore Digital Library
Author	Jianhua Chen Binbin He Weihong Wang
Copyright Year	2010
Description	Author affiliation: College of Geology Science Chengdu Univ. of Technology Chengdu, China (Weihong Wang) \|\| Institute of Geo-Spatial Information S&T Univ. of Electronic Science and Technology of China Chengdu, China (Jianhua Chen; Binbin He)
Abstract	GML spatial data query language is a very important part of native GML spatial database system, it is an indispensable component to GML documents for spatial data query as well. As the data model has significant difference between XML/GML and relational database, it's not suitable using SQL or extending SQL to query GML spatial data. XQuery is W3C recommendation for XML data query, directly using XQuery to query GML spatial data, only the GML non-spatial data can be queried, the GML spatial data can not be queried because of GML's spatial characteristics. Integrally referring previous research achievements, this paper further studied GML spatial data query language based on XQuery and name it GXQuery in order to reflect the integration of GML and XQuery, problem of GML spatial data query, reasons for extending XQuery to support GML spatial data query, features of GML spatial data query language, content of XQuery spatial extension, architecture of GXQuery, implementation methods of GXQuery were detially studied and discussed, and typical query examples of GXQuery were also given.
Starting Page	271
Ending Page	275
File Size	477772
Page Count	5
File Format	PDF
ISBN	9781424452637
DOI	10.1109/ICIME.2010.5478020
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Geology Query Electronic equipment testing XQuery Relational databases Educational institutions Data engineering Helium Database languages Spatial Extension GML Spatial Data XML Data models Libraries
Content Type	Text
Resource Type	Article

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