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关注:1
2013-05-23 12:21
求翻译:Geographical variation must be represented in terms of discrete elements or objects. The rules used to convert real geographical variation into discrete objects is the data model. Data model is set of guidelines for the representation of the logical organization of the data in a database.是什么意思?![]() ![]() Geographical variation must be represented in terms of discrete elements or objects. The rules used to convert real geographical variation into discrete objects is the data model. Data model is set of guidelines for the representation of the logical organization of the data in a database.
问题补充: |
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