在概念模型中,实体类型是以属性建构而成的,用于描述最上层概念的结构,例如商务应用程序中的客户和订单。
In a conceptual model, entity types are constructed from properties and describe the structure of top-level concepts, such as a customers and orders in a business application.
在概念模型中,实体类型是以属性建构而成的,用于描述最上层概念的结构,例如商务应用程序中的客户和订单。
In a conceptual model, entity types are constructed from properties and describe the structure of top-level concepts, such as a customers and orders in a business application.
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