Share Email Print

Proceedings Paper

SQL level global query resolving for web based GIS
Author(s): Bin Chen; Fengru Huang; Zhou Huang; Yumei Sun; Yu Fang
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

This paper introduced a SQL level approach to resolve global spatial query in Web based heterogeneous distributed spatial database environment. The main prohibit of this SQL level approach was its widespread compatibility and standardization. Firstly, a SQL based Equivalent Distributed Program (EDP) was introduced to express distributed spatial processing transactions. Then global resource directories for virtual global view describing were discussed to organize information that resolving need. The contents of global resource directories included data storage directory, hosts directory and working status directory. With these mechanisms, relational algebra expression equivalence principles were utilized to resolve global spatial queries to EDPs. Finally, several samples were presented to show the process of resolving. This approach was suitable to all sorts of distributed computing environments either centralized such as CORBA or decentralized such as P2P computing platforms.

Paper Details

Date Published: 7 August 2007
PDF: 10 pages
Proc. SPIE 6754, Geoinformatics 2007: Geospatial Information Technology and Applications, 67541Y (7 August 2007); doi: 10.1117/12.764934
Show Author Affiliations
Bin Chen, Peking Univ. (China)
Fengru Huang, Peking Univ. (China)
Zhou Huang, Peking Univ. (China)
Yumei Sun, Peking Univ. (China)
Yu Fang, Peking Univ. (China)

Published in SPIE Proceedings Vol. 6754:
Geoinformatics 2007: Geospatial Information Technology and Applications
Peng Gong; Yongxue Liu, Editor(s)

© SPIE. Terms of Use
Back to Top