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| 工程数据库管理系统的体系结构* |
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陈 俊1,2, 孙建伶1,2, 董金祥1,2
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1.浙江大学计算机科学与工程系,杭州,310027;2.浙江大学CAD & CG国家重点实验室,杭州,310027
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| 摘要: |
| 设计工程数据库管理系统的体系结构需要在两个重大问题上作出选择:①采用何种客户/服务器结构,以便在客户机和服务器之间寻求一个合适的功能分配点;②采用何种并发控制策略来保证客户端缓冲数据的一致性.首先讨论3种不同的客户/服务器结构（即对象服务器、页面服务器和文件服务器）,比较它们之间的差别和各自的优缺点;其次讨论了实现缓冲一致性的各种并发控制策略;最后介绍了工程数据库管理系统OSCAR的体系结构. |
| 关键词: 工程数据库管理系统,体系结构,缓冲一致性,并发控制. |
| DOI： |
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| 基金项目:本文研究得到国家自然科学基金和浙江省自然科学基金资助. |
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| The Architectures of Engineering Database Management Systems |
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CHEN Jun,SUN Jian-ling,DONG Jin-xiang
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| Abstract: |
| There are two issues involved in designing the architectures of engineering database management systems. The first is which kind of client/server structure is to be employed to make a proper distribution of functions between client and server. And the second is which kind of concurrency control algorithm is to be used to guarantee the consistency of the caching data at clients. Three client/server architectures(i.e. Object-server, Page-server, File-server) are dicussed, the differences among them are designated, the advantages and disadvantages of each are pointed out in this paper. The various concurrency control algorithms for cache consistency are also studied. Finally, the architecture of OSCAR, an engineering database management system, is introduced. |
| Key words: Engineering database management system, architecture, cache consistency, concurrency control. |
