5.4.2 数据库的设计 数据库的设计包括 概念数据库设计 ( Concept Database Design )、逻辑 数据库设计(Logical Database Design )和物理数据库设计(Physical Database Design)。
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database concept design 数据库概念设计
It gives a suite of modeling concepts which can completely describe the business objects. And the data structures are presented. Therefore, a uniform database concept design framework is achieved.
该方法给出一套能对实际业务对象进行完整描述的概念模型,并给出相应的数据结构设计,从而得到一种统一的数据库概念模型设计框架。
The database design includes concept and logical design, table create, back up and recover.
数据库设计包括概念和逻辑设计、表结构设计、备份和恢复实现等。
In order to adapt to the design requirement of spatiotemporal database, this article proposes a new spatiotemporal er enhanced model and introduces its relevant concept as well as design method.
为了满足时空数据库设计的需要,提出了新的时空er模型并给出了相关的概念及设计方法。
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