对计算机编制列车运行图系统采用C/S结构的分布式数据库技术来组织和管理数据中的关键技术———多用户数据访问技术进行了研究 ,提出了以PowerBuilder和VisualC+ + 为工具 ,采用ODBC技术来实现系统多用户对数据库的实时访问的方法。实际开发与应用表明 ,该方法能方便、快速地连接和访问目标数据库 The key technology of organizing and managing data, which is based on C / S structure distributed database technology, has been researched on the system of multi-user data accessing based on C / S structure of running graph system of computer. The paper presents a method of using PowerBuilder and Visual C + Technology to achieve system multi-user real-time access to the database. The actual development and application shows that this method can easily and quickly connect and access the target database