摘要
数据处理是地理信息系统中的重要任务,地理数据不但含属性数据,还包含空间坐标信息,具有复杂、容量大的特点。为了有效地对地理数据进行各种处理,提出了利用RDBMS中的游标技术直接操纵SDE数据库的处理方法。分别以空间要素与其属性挂接和删除重复要素为例,来说明该方法的技术要点。
Processing data is an important task in geographic information system. Geographic data includes not only attribute data but also spatial data with complicated character and massive scale. To conduct various processes of geographic data efficiently, approach that manipulating directly SDE database by dint of cursor technology in RDBMS is proposed. Taking two examples, matching spatial features and their attributes and deleting reduplicate features in spatial database, indicate the technique key point ofthi＇s approach.
出处
《计算机工程与设计》
CSCD
北大核心
2008年第8期2102-2104,共3页
Computer Engineering and Design
基金
云南省信息专项基金项目(IT200204)
云南大学青年基金项目(K1059134)
