hierarchical data model造句

Full exposure of a hierarchical data model is automatic
层次数据模型的全部展现是自动的。
Xml is a hierarchical data model , but uml works with graphs that are more flexible
Xml是一种层次化的数据模型，而uml使用更加灵活的图。
In addition to supporting a tabular data model , db2 also supports the native hierarchical data model found in xml documents and messages
除了支持表数据模型之外， db2还支持xml文档和消息中固有的层次化数据模型。
The developer must use caution to ensure that a server side hierarchical data model is fully exposed in the web service interface definition
开发人员必须注意确保服务器端分层数据模型要完全展现在web服务接口定义中。
With additional work , however , the bottom - up approach can support hierarchical data models and , therefore , should not be automatically dismissed
然而，通过额外的工作可以使自底向上的开发方法支持层次数据模型，因而不会被自动淘汰掉。
It's difficult to find hierarchical data model in a sentence. 用hierarchical data model造句挺难的

The history of the development of database technology can be divided into three phases : the first generation is the reticulation / hierarchical data model based on database ; the second generation is the relational data model based database ; the third generation database which has the object oriented character breakthroughs the localization of the traditional database model which is unable to build model based on complex data structure . the third generation has led the database system to a new time
数据库技术的发展经历了三个阶段：第一代数据库系统是基于网状、层状数据模型的网状、层状数据库管理系统；第二代数据库是基于平面关系模型的关系数据库系统；以面向对象模型为代表的第三代数据库系统突破了传统数据模型在复杂数据建模和管理方面存在的局限性，使数据库系统进入了新的时代。