【摘要】 系统地阐述了采用E-R模型建立矿产资源信息系统中空间属性数据库的概念模型,再配合关系规范化理论将其转换为规范化的关系数据模型,旨在为属性数据库设计提供理论和实践依据。更多还原

【Abstract】 The paper describes systematically how to use E-R model to build the conceptual model of spatial attribute database fo mineral resource information system and then to turn it into a normalized relational data model based on the relation normalization theory. It is aimed to provide a base both theoretically and practically for attribute database design.更多还原