%0 Journal Article
%T New model for storing GML document into relational database<br>通用映射模式下GML关系数据库存储研究
%A MIAO Li-zhi
%A ZHANG Shu-liang
%A LV Guo-nian
%A <br>苗立志
%A 张书亮
%A 闾国年
%J 计算机应用研究
%D 2009
%I 
%X This paper proposed a new model called G2RDB for storing GML data into RDBMS. Through parsing GML documents, G2RDB got geo-feature info, spatial object and nest relation described by its unique parent of every node. According to the predefined mapping rules and the mapping tables of geo-feature models, the proposed method could store GML data into RDB by the generated relational schemas that were mapping from GML document to four kinds of relational tables: feature_info, featm_mappingtab, feat_att and doc_spatialObj. A prototype system of the proposed method had been implemented based on the syntactic and semantic database to show applicability for storing GML data. As a result, the implemented system can store various GML data which have diverse XML structures and different size. Also, comparison shows the advantages that GML data stored in RDB. Furthermore, spatial, non-spatial and mixed content queries can be performed over the stored GML data quickly, obtaining results, in the form of fragments of GML data or GML document.
%K GML
%K RDBMS
%K G2RDB
%K mapping rules
%K universal relational schemas for mapping<br>GML
%K RDBMS
%K G2RDB
%K 映射规则
%K 通用映射关系模式
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=5BA0AEA93276A4AD0172B8ABBEDFDD84&yid=DE12191FBD62783C&vid=96C778EE049EE47D&iid=708DD6B15D2464E8&sid=6B49F16AEA7E3E9B&eid=8D8268632EA08FFA&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=12