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MySQL数据库外键的相关知识详解
MySQL数据库外键的相关知识是本文我们主要要介绍的内容,接下来我们通过一个具体的例子来逐步介绍这些设置。假如某个电脑生产商,它的数据库中保存着整机和配件的产品信息。用来保存整机产品信息的表叫做pc;用来保存配件供货信息的表叫做parts。
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