基于Oracle DBMS的森林资源空间数据库存储优化策略  

Oracle DBMS based forest resources spatial database storage optimization strategy

作　　者：张茂震[1] 唐小明[2] 王亚欣[2] 张怀清[2] 吴东亮[3] 

机构地区：[1]浙江林学院环境科技学院,浙江临安311300 [2]中国林业科学研究院资源信息所,北京100091 [3]北京联合大学旅游学院,北京100101

出　　处：《浙江林学院学报》2008年第4期411-416,共6页Journal of Zhejiang Forestry College

基　　金：“十一五”国家科技支撑项目(2006BAD23B0204-4);浙江林学院科学研究发展基金资助项目(2006FR058)

摘　　要：针对当前森林资源数据库应用中海量数据和集中式管理等因素所导致的系统效率问题,在分析ArcSDE的空间数据存储管理机制的基础上,结合应用系统开发,从数据库设计、Oracle DBMS配置、ArcADE配置和数据维护等4个方面总结了基于Oracle DBMS的空间数据库系统优化策略。以福建省省级森林资源空间数据库系统为例,就主要优化策略进行了验证。结果表明:合理调整数据库管理系统(DBMS)和ArcSDE参数(Oracle SGA区大小和ArcSDE索引格网大小,MAXBUFSIZE大小),优化数据库结构设计,采用中间表技术等都可以有效提高查询效率;优化森林资源数据库设计必须考虑合理的逻辑设计和分散的物理设计相结合。To cope with the system efficiency problems caused by mass-data and the centralized management in the forest resources database, the paper analyzed the spatial data management mechanism of ArcSDE spatial engine and worked out the optimization strategies for Oracle DBMS based spatial database system from four perspectives including database design, DBMS configuration, ArcSDE configuration and database maintenance. The provincial level forest resources spatial database of Fujian Province was taken as an example to validate the main optimization strategies. The results indicated that the rational adjustment of the parameters of DBMS and ArcSDE engine（Oracle SGA size, ArcSDE index size and MAXBUFSIZE）, optimization of the database design and adoption of the middle table technique could all improve the query-efficiency significantly. For optimizing forest resources database, efficient logical database structure and distributed physical database structure should both be considered.

关 键 词：森林经理学 ARCSDE ORACLE DBMS(数据库管理系统) 空间数据库 系统优化 

分 类 号：S757[农业科学—森林经理学]