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  • 1 # 火龍果開心果牛油果

    附註:資料模式是基於選定的資料模型對資料進行“型”方面的刻畫,而相應的“例項”則是對資料“值”方面的描述。

    這可能時我看到的最好的答案了。我這裡的指代不是很準確,應該說資料字典和資料庫模式有什麼關係?

    The schema in a relational database refers to the tables, fields and also the existing relationship between the fields and tables. Schemas are stored in a data dictionary, it is considered as the graphic model of a database.Schema is the representation of the database. Data dictionary, is the storage for the data.

    來自:http://www.databaseguides.com/what-is-a-database-schema

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