动态层次结构数据在关系模式中的组织与处理研究

Organization and processing of dynamic hiberarchy data in relation mode

在对现有的两种动态层次结构数据关系化方法分析的基础上,提出了使用关系模式直接表达动态层次结构数据的方法。方法指出将层次树状结构顺序遍历,组织成为关系模式。将层次结构信息隐藏在关系表的数据中。当需要使用数据的结构信息时,将其从关系表中取出,构成动态层次结构。

A method of using relation mode to express the dynamic hiberarchy data directly is presented by this paper on the basis of analyzing the existing two methods of relation dynamic hiberarchy data. It pointed out that relation mode could be organized by sequential traversal of hierarchy tree structure. The hiberarchy information is hidden into the relation table data. It is taken out from the relation table and make up of dynamic hiberarchy when the structure information of data is needed.