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。

youdao

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。

youdao

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。

youdao