mac将mysql8换成5.7

卸载mysql8 

 

删除高版本遗留数据库

sudo rm -rf /usr/local/var/mysql

 安装mysql5.7

brew install [email protected]

brew services start [email protected]

brew link [email protected] --force

重启后，重置mysql密码

mysql -uroot -p

 要输入密码的时候直接回车就行了

设置密码

set password for root@localhost=password('root');

 

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参考：

https://newsn.net/say/brew-install-mysql57.html