摘要
随着计算机和网络技术的发展,分布式系统正成为当前研究的热点,而数据库是系统中管理维护数据的核心。不同于传统的数据库技术,分布式数据库技术在数据共享、维护以及时间特性等方面都有着更高的要求。本文将以江苏省警务地理信息系统为例,探讨分布式数据库的一些关键问题及其进一步设计与实现,并对其性能进行分析,为警务信息的维护管理提出了新的思路。
With the development of computer and internet,distributed system becoming the hotspot of research.And database is the core of a system to manage and maintain data.Distinguished from the traditional database,distributed database possesses has higher requirements in data sharing,maintenance,time property and etc.Take Jiangsu PGIS as an example,this paper discusses several key problems of distributed database and its further implementation,and analyzes its performance,providing new thoughts for the management of police information.
出处
《现代测绘》
2010年第3期23-25,共3页
Modern Surveying and Mapping
关键词
分布式数据库
时间限制
历史数据
distributed database
time restriction
historical data
