相关的链接（relationallink）
- https://zh.wikipedia.org/wiki/%E7%9B%B8%E5%85%B3%E9%93%BE%E6%8E%A5 - https://developer.mozilla.org/zh-CN/docs/Learn/Server-side/First_steps/Relational_databases - https://blog.csdn.net/minganzhang/article/details/80335724 - https://www.cnblogs.com/wanghuaijun/p/9684636.html - https://www.runoob.com/sql/sql-intro.html
Public @ 2023-06-26 07:50:07