Mac彻底删除mysql，重新安装mysql，修改mysql用户权限

Posted 2021-09-23 Rudon滨海渔村

删除mysql

1. 左上角“系统偏好设置”，打开MySQL面板，停止MySQL服务
2. 在文件“/etc/hostconfig”中删除一行“MYSQLCOM=-YES-”
3. 分别执行以下命令：
   sudo rm /usr/local/mysql
   sudo rm -rf /usr/local/mysql*
   sudo rm -rf /Library/StartupItems/MySQLCOM
   sudo rm -rf /Library/PreferencePanes/My*
   sudo rm -rf ~/Library/PreferencePanes/My*
   sudo rm -rf /Library/Receipts/mysql*
   sudo rm -rf /Library/Receipts/MySQL*
   sudo rm -rf /var/db/receipts/com.mysql.*
    

这时，重新进去“系统偏好设置”，就会发现MySQL面板已经不见了。

安装mysql（方法1: homebrow）

brew install mysql@5.7

如果想要最新的版本，使用命令：brew install mysql

如果发生以下错误，可以这么处理：

MD314:~ rudon$ brew install mysql@5.7
Updating Homebrew...
Error: mysql@5.7: Calling `sha256 "digest" => :tag` in a bottle block is disabled! Use `brew style --fix` on the formula to update the style or use `sha256 tag: "digest"` instead.
Please report this issue to the homebrew/core tap (not Homebrew/brew or Homebrew/core), or even better, submit a PR to fix it:
  /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/[e-mail]:8

MD314:~ rudon$ brew style --fix

安装mysql（方法2: 官网）

https://downloads.mysql.com/archives/community/ 

选择mysql版本5，再选择平台；

下载+鼠标安装

ok

修改mysql用户权限

创建用户
create user 'name-of-user'@'%' identified by 'password-of-user';
授权用户
grant all privileges on *.* to 'name-of-user'@'%';
flush privileges;
或者
grant all privileges on oneDbName.oneTableName to 'name-of-user'@'%';
flush privileges;