ubuntu 修改mysql 密码
user mysql; # 切换数据库
select * from user \G; # 显示所有用户表
alter user 'root'@'%' identified by 'Test&1234' # 修改所有主机(%)的root登录账户密码
user mysql; # 切换数据库
select * from user \G; # 显示所有用户表
alter user 'root'@'%' identified by 'Test&1234' # 修改所有主机(%)的root登录账户密码