1、创建数据库school，字符集为utf8；
2、在 school 数据库中创建 Student 和 Score 表；
3、授权用户 tom，密码 mysql，能够从任何地方登录并管理数据库school。

# 1、创建数据库school，字符集为utf8；
mysql> create database school character set utf8;

# 2、在 school 数据库中创建 Student 和 Score 表；
mysql> use school;
mysql> create table Student(
    -> Id int(10) primary key auto_increment not null unique comment '学号',
    -> Name varchar(20) not null comment '姓名',
    -> Sex varchar(4) comment '性别',
    -> Birth year comment '出生年份',
    -> Department varchar(20) not null comment '院系',
    -> Address varchar(50) comment '家庭住址');
mysql> create table Score(
    -> Id int(10) primary key not null unique auto_increment comment '编号',
    -> Stu_id INT (10) not null comment '学号',
    -> C_name varchar(20) comment '课程名',
    -> Grade int(10) comment '分数');
mysql> desc Student;
+------------+-------------+------+-----+---------+----------------+
| Field      | Type        | Null | Key | Default | Extra          |
+------------+-------------+------+-----+---------+----------------+
| Id         | int(10)     | NO   | PRI | NULL    | auto_increment |
| Name       | varchar(20) | NO   |     | NULL    |                |
| Sex        | varchar(4)  | YES  |     | NULL    |                |
| Birth      | year(4)     | YES  |     | NULL    |                |
| Department | varchar(20) | NO   |     | NULL    |                |
| Address    | varchar(50) | YES  |     | NULL    |                |
+------------+-------------+------+-----+---------+----------------+
mysql> desc Score;
+--------+-------------+------+-----+---------+----------------+
| Field  | Type        | Null | Key | Default | Extra          |
+--------+-------------+------+-----+---------+----------------+
| Id     | int(10)     | NO   | PRI | NULL    | auto_increment |
| Stu_id | int(10)     | NO   |     | NULL    |                |
| C_name | varchar(20) | YES  |     | NULL    |                |
| Grade  | int(10)     | YES  |     | NULL    |                |
+--------+-------------+------+-----+---------+----------------+

# 3、授权用户 tom，密码 mysql，能够从任何地方登录并管理数据库school。
mysql> create user 'tom'@'localhost' identified by 'mysql';
mysql> grant all on school.* to 'tom'@'localhost' identified by 'mysql';