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| 关系型多数据库系统IS-Global的设计与实现 |
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吴胜利1,2, 钟华1,2, 黄涛1,2, 孙红艳1,2, 虞海江1,2
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1.中国科学院软件研究所对象技术中心,北京,100080;2.中国科学院软件研究所计算机开放研究实验室,北京,100080
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| 摘要: |
| 文章主要讨论IS-Global的设计思想和关键的实现技术.IS-Global是一个关系型多数据库系统,其目标是为CIMS(computer integrated manufacture system)环境下企业级应用提供一个集成的、能屏蔽网络、操作系统和数据库系统异构性的全局信息系统.IS-Global的主要特点是：(1) 它是一个紧耦合的系统,具有统一的全局模式,对不同的关系型数据库系统,如Oracle,Sybase和SQL(structured query language) Server等可进行透明访问.(2) IS-Global采用两级客户/服务器结构,支持并发控制和安全性机制,是一个多用户系统.(3)可同时提供图形化界面工具、ODBC(open database connectivity)函数接口和SQL语言交互式访问接口.(4) 能同时支持对多个局部数据库中数据的联合查询. |
| 关键词: 异构多数据库系统,联邦数据库系统,可互操作的数据库系统. |
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| 基金项目:本文研究得到国家自然科学基金、国家863高科技项目基金和博士后科研基金资助. |
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| Design and Implementation of Relational Multi-database System IS-Global |
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WU Sheng-li,ZHONG Hua,HUANG Tao,SUN Hong-yan,YU Hai-jiang
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| Abstract: |
| In this paper, the authors discuss IS-Global's pivotal technique in design and implementation. IS-Global is a relational multi-database system, which provides an integrated global information system platform for enterprises applying CIMS (computer integrated manufacture system), and hides the detail of the heterogeneity of network, local operating systems and database systems. The major characteristics of IS-Global are as follows: (1) It is a tightly integrated system with unique global schema. (2) Being a multi-user system, IS-Global possesses two-lever client/server architecture and supports concurrent and security control mechanisms. (3) IS-Global provides graph-based tools, ODBC function call and interactive SQL interface. (4) IS-Global supports multi-location queries. |
| Key words: Heterogeneous multi-database systems, federated database systems, interoperable database systems. |
