Mapinfo空间数据在Oracle数据库中无损存储的方法研究

Studies on Non-loss Mapinfo Spatial Data Storage in Oracle Database

OracleSpatial是大型数据库管理系统Oracle用于解决GIS领域中海量空间数据存储的空间数据扩展 .在利用OracleSpatial进行Mapinfo空间数据存储的过程中 ,标注和风格等空间信息会发生丢失 .通过对Mapinfo的空间数据模型和Oracle空间数据模型的比较分析 ,找到空间信息丢失的原因 ,进而提出一种把丢失的空间信息进行必要的提取、组织、还原 ,以达到无损空间数据存储的方法 .

Oracle Spatial, presented by famous Oracle DBMS, is used to store abundant spatial data in GIS realm. But in course of spatial data storage, spatial information, such as note and style will be lost. With the Mapinfo spatial feature model and the Oracle Spatial object-relation model analyzed, the method has been devised to achieve non-loss spatial data storage through essential pick-up, organization, restoration of the lost spatial information.