Oracle数据库矢栅数据一体化存储与管理

Integrated Storage and Management of Vector and Raster Data Based on Oracle Database

当前多源异构空间数据存储和管理存在流转难度大、存储不统一、效率不高等问题。本文将关系数据库与空间数据引擎技术结合,提出了一种基于Oracle的面向对象的矢栅数据一体化存储与管理方法。该方法首先建立了矢栅一体化存储模型并优化了检索方法,然后据此构建了数据无缝流转框架,实现了多源异构矢栅数据的统一存储与高效管理。通过与国际领先的同类软件ArcSDE进行测试对比,该方法具有更高的数据流转性能及更优的查询检索效率。

At present,there are many problems in the storage and management of multi-source heterogeneous spatial data,such as the difficulty of transferring,the lack of unified storage and the low efficiency.By combining relational database and spatial data engine technology,an approach for integrated storage and management of vector and raster data is proposed on the basis of Oracle in this paper.This approach establishes an integrated storage model on vector and raster data and optimizes the retrieval mechanism at first,then designs a framework for the seamless data transfer,finally realizes the unified storage and efficient management of multi-source heterogeneous data.By comparing experimental results with the international leading similar software ArcSDE,it is proved that the proposed approach has higher data transfer performance and better query retrieval efficiency.