1、假设没有password,则
mysql -u root
mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('newpass');
2、假设已经有password,能够用:mysqladmin -u root password "newpass"
假设root已经设置过password。採用例如以下方法
mysqladmin -u root password oldpass "newpass"
3、能够在可视化界面中,找到mysql数据库的user表,改动,可是记得加权限:grant all on mysql.* to 'root'@'localhost' identified by 'password';
最后那个password即是你要改动的root用户的密码
假设不加这句的话。会没有权限而登不上,回报这种错误:
错误代码
1045
Access denied for user 'root'@'localhost' (using password:YES)