Abstract: With the continuous perfection of GML standards and the wide support of GIS software suppliers, GML has in fact become an international standard for spatial data coding, transmission, storage and distribution, and more and more spatial data have been stored in GML format. How to effectively store and manage GML spatial data has been the focus of GIS research. It is the first time to attempt to use Oracle database to store and manage GML data. Comparative analysis is made among the three storage means provided by Oracle XML DB for GML data storage. The study on the storage of GML data in Oracle database will facilitate the data share among GIS softwares and the development of Web GIS.

Key words: Oracle XML DB, Structural storage, Non-structural storage, GML spatial data