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guico

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数据库设计的时候外键约束很常用吗？

问与答 guico Mar 31, 2023 Lastly replied by 810244966

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Apr 26, 2023

Replied to a topic by hash070 OpenAI 我也做了个 ChatGPT 网站

@tryToBeingBetter 说白了就是发给用户一个链接，点击后发送请求修改对应的用户状态就行了

Mar 31, 2023

Replied to a topic by guico 问与答数据库设计的时候外键约束很常用吗？

@makelove 这里我说的不够准确哈，是在删除的时候的 JOIN 语句，查询的时候应该时性能更好的

@v219861d 在面对查询比较多且不太需要删除的数据中用外键会更好，删除比较多的数据就少用，可以这样说吗

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