MySQL修改root密码

用SET PASSWORD命令

mysql -u rootmysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('password');

用UPDATE直接编辑user表

mysql -u rootmysql> use mysql;mysql> UPDATE user SET Password = PASSWORD('password') WHERE user = 'root';mysql> FLUSH PRIVILEGES;

密码丢失的时候

mysqld_safe --skip-grant-tables&mysql -u root mysqlmysql> UPDATE user SET password=PASSWORD("password") WHERE user='root';mysql> FLUSH PRIVILEGES;

flush privileges 命令本质上的作用是将当前user和privilige表中的用户信息/权限设置从mysql库(MySQL数据库的内置库)中提取到内存里