The Inquiry Optimization in The Distributed Data Base System;
查询优化在关系数据库系统中起着非常重要的作用。
In the extensive distributed data base system, the data base duplication plays a very key role to the dependability and efficiency of the system.
在大规模的分布式数据库系统中，数据库复制对于系统的可靠性及效率起着非常关键的作用。
The functions of system and some related key technologies, such as distributed CAE data management, model base system, collaborative assistant tools were discussed in detail.
详细介绍了该系统的功能和关键技术的实现，包括分布式CAE数据管理、基于文件的模型库系统、协同辅助工具等技术。
This paper is to study and test an Online Simulated Stock Trading System by using J2EE architecture and DDB (Distributed Data Base).
论文采用J2EE构架和分布式数据库技术对网上股票模拟交易系统进行了实验和研究。
This paper is to study and test an Online Simulated Stock Trading System by using J2EE architecture and DDB (Distributed Data Base).
论文采用J2EE构架和分布式数据库技术对网上股票模拟交易系统进行了实验和研究。
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