设置主键
https://jingyan.baidu.com/article/9158e0003349a7a2541228fd.html
设置外键
https://jingyan.baidu.com/article/a3761b2bdf0a4b1576f9aa26.html
先设置主键,不设置主键设置外键的设不了
2022-10-26 18:46:08
设置主键
https://jingyan.baidu.com/article/9158e0003349a7a2541228fd.html
设置外键
https://jingyan.baidu.com/article/a3761b2bdf0a4b1576f9aa26.html
先设置主键,不设置主键设置外键的设不了