关系型数据库，何以称为“关系”

最新推荐文章于 2025-12-04 14:41:53 发布

转载最新推荐文章于 2025-12-04 14:41:53 发布 · 153 阅读

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#数据库

1970年，Dr. Codd提出了一个革命性的数据管理方法——关系模型，并在一篇标志性论文中进行了阐述。该模型基于集合论和一阶谓词逻辑，与传统理解不同的是，关系一词源自数学而非数据库间的连接。

Dr. Codd formally presented his new relational model in a landmark work titled “A Relational Model of Data for Large Shared Databanks” in June 1970.1 He based his new model on two branches of mathematics—set theory and first-order predicate logic. Indeed, the name of the model itself is derived from the term relation,which is part of set theory. (A widely held misconception is that the relational model derives its name from the fact that tables within a relational database can be related to one another. Now that you know the truth, you’ll have a peaceful, restful sleep tonight!)

------SQL Queries for Mere Mortals®
Second Edition

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