【摘要】 针对汽车产品试验内容不断增加、更新的需要,系统数据库必须经常扩展,给用户对系统的使用和维护带来困难。文中将树形结构引入到数据库设计中,详细讨论了该树形结构的定义以及设计方法。该方法简单、直观,易于数据的组织,简化了数据库的设计过程,在安徽江淮汽车试验集成系统中的应用取得了良好的效果。更多还原

【Abstract】 In order to solve the problems in the automobile test integration system,in this paper,the tree-like structure is introduced to the design on the database,in which the definition and the design method are narrated in detail.The method is not only simpler and easier to organize data,but also can simplify the design process of the database.This method has been used to design for the automobile test integration system and has shown good results.更多还原