本文描述一个分布式关系数据库系统中具有语义优化的查询处理算法。
In this paper, we describe an algorithm, for query processing with semantic optimization in distributed relational database systems.
如何以传统的分布式关系数据库技术为基础，构建适用于无线网络环境的移动数据库成为分布式数据库研究领域中一个重要的问题。
How to construct a mobile database based on traditional distributed database technologies, which can adapt the wireless environment, has been a key problem of distributed database researches.
分布式关系数据库体系结构(distributed relation database architecture,DRDA)是用于客户机与服务器之间通信的常见协议，它由RuntimeClient提供。
Distributed relation database architecture (DRDA) is the common protocol used for communication between the client and the server, and is provided by the Runtime client.
保存动态、分布式、层次的和有状态信息要求一个不同的基础设施，它不是以关系数据库为中心的。
Storing stateful information that is dynamic, distributed and hierarchical requires a different infrastructure that is not relational database centric.
根据理论研究成果，基于关系数据库，开发了冲突解决支持工具，该工具支持分布式协同设计过程的冲突解决。
On the basis of theoretic research, a collision solution support tool is developed based on relation database, and the tool can help solving collision in the distributed cooperation design course.
经过对数据库系统的分析，采用关系数据库作为用户管理的数据库类型，进行分布式数据库系统的构建。
After analysis of database system, relative database was chosen as database type to build the distributed database system.
以数据仓库技术思想为核心，研究在关系数据库和现有低资源环境下，设计基于多维数据管理的分布式数据库及信息管理系统。
The standard designs have been discussed. The data warehouse technique has been supplied and researched on data pre-process application. The logic structure and informa…
以数据仓库技术思想为核心，研究在关系数据库和现有低资源环境下，设计基于多维数据管理的分布式数据库及信息管理系统。
The standard designs have been discussed. The data warehouse technique has been supplied and researched on data pre-process application. The logic structure and informa…
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