Navicat连接不上MySQL的问题解决

create table Student( Sno int not null auto_increment primary key,Sname varchar(10) not null,Sex char(1) not null,Sage tinyint(100) not null,Sdept char(4) not null)comment = '学生表';
//建表语句
alter table Student auto_increment = 201215121;
insert into Student (Sname, Sex, Sage, Sdept) values ('李勇', '男', 20, 'CS');
insert into Student (Sname, Sex, Sage, Sdept) values ('刘晨', '女', 19, 'CS');
insert into Student (Sname, Sex, Sage, Sdept) values ('王敏', '女', 18, 'MA');
insert into Student (Sname, Sex, Sage, Sdept) values ('张立', '男', 19, 'IS');
//加载数据进表

SET PASSWord FOR 'root'@'localhost' = 'newpasswd2';

ALTER USER root@localhost IDENTIFIED BY '123456';