The logic framework structured design is consisted of theory analysis of function dependency, relation normalization, transformation from E-R model to relation model and data model normalization.
逻辑结构设计包括函数依赖和关系规范化的理论分析、E - R模型向关系模型的转换和数据模式规范化。
Some basic concepts of E-R relation model and multi-dimension data model are introduced, and design of multi-dimension data model of demand management is described in detail.
本文介绍了ER关系模型和多维数据模型的一些基本概念,着重介绍了需求管理的多维数据模型设计。
And concrete data store model is achieved with E-R diagram designing data store.
用e - R图设计数据库,并得到具体数据库模型。
The entity-relationship(E-R) data model is based on a perception of a real world that consists of a collection of basic objects, called entities, and of relationships among these objects.
实质-联系 (电子半径)数据模型以有一个基本物件的集合物件,叫做了实质的真正世界的一个知觉为基础,和在这些物件之中的联系。
After the analysis of system function and business, this paper designs the database E-R model and logical data model of this system.
在分析了系统业务和功能之后,设计了系统数据库的E - R模型及逻辑数据库模型。
Second, the econometric model of the Chinese pharmaceutical R&D productivity of the Chinese pharmaceutical industry is constructed based on the data collected.
并基于此建立了中国医药产业研发生产力的表征指标体系和影响因素体系。
Second, the econometric model of the Chinese pharmaceutical R&D productivity of the Chinese pharmaceutical industry is constructed based on the data collected.
并基于此建立了中国医药产业研发生产力的表征指标体系和影响因素体系。
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