Title :
Extending a DBMS for geographic applications
Author :
Ooi, Beng Chin ; Davis, R.S. ; McDonnell, K.J.
Author_Institution :
Dept. of Comput. Sci., Monash Univ., Clayton, Vic., Australia
Abstract :
A method is presented for extending a conventional DBMS (database management system) for geographic applications. The interface language SQL is augmented to allow formulation of queries involving both spatial and nonspatial selection criteria. A novel indexing structure is supported to facilitate query retrieval that is based on spatial proximity. To enable hybrid queries to be evaluated efficiently, an extended optimization strategy is proposed that evaluates minimal implementation effort
Keywords :
computer graphics; database management systems; geographic information systems; indexing; information retrieval; query languages; DBMS extension; GIS; conventional DBMS; database management system; geographic applications; hybrid queries; indexing structure; interface language SQL; minimal implementation effort; nonspatial selection criteria; optimization strategy; query retrieval; spatial proximity; standard query language; Application software; Cities and towns; Computer science; Data models; Database systems; Displays; Geographic Information Systems; Indexing; Information retrieval; Roads;
Conference_Titel :
Data Engineering, 1989. Proceedings. Fifth International Conference on
Conference_Location :
Los Angeles, CA
Print_ISBN :
0-8186-1915-5
DOI :
10.1109/ICDE.1989.47266
