When transforming a logical data model to a physical data model using IDA, entity and attribute names are transformed to table and column names according to the following rules.
在使用RDA将逻辑数据模型转换为物理数据模型时,实体和属性名称根据以下规则被转换为表和列名称。
The upper hand this model is that only large area of each exhibition hall set up an entity, consumers in the network longer a "non-standard custom" option, and then to the physical store viewing.
这种模式的上风在于,每个大区域只需设立一个实体展厅,消费者在网络长进行“非标定制”选购,然后再到这个实体店查看。
The final ERD (entity relationship model diagram) and system datum dictionary are given through data sheets normalization during logic design and physical design.
在逻辑设计与物理设计过程中通过数据规范化后得出最终的ER模型图并给出系统数据字典。
应用推荐