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Data Model

数据模型是描述 数据库 中数据、数据之间关系、数据语义和一致性约束的概念工具。


CMU 15-445

A data model is a collection of concepts for describing the data in a database.[1]

Database System Concepts

Underlying the structure of a database is the data model: a collection of conceptual tools for describing data, data relationships, data semantics, and consistency constraints.[2]

  1. ↩︎

  2. Abraham Silberschatz, Henry F. Korth, and S. Sudarshan, Database System Concepts, Seventh edition (New York, NY: McGraw-Hill, 2020). P8 ↩︎