A logical data model takes this a step farther, analyzing the detailed structure of the data, including relationships, sub-typing, attribution and containment.
逻辑数据模型在此基础上更进一步，分析数据的详细结构，包括关系、子类型、属性和包含关系。
A logical data model takes this a step farther, analyzing the detailed structure of the data, including relationships, sub-typing, attribution and containment.
逻辑数据模型在此基础上更进一步，分析数据的详细结构，包括关系、子类型、属性和包含关系。
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