第二次作业

这个作业属于哪个课程	https://edu.cnblogs.com/campus/uzz/cs3
这个作业要求在哪里	https://edu.cnblogs.com/campus/uzz/cs3/homework/13041
这个作业的目标	代码

 create database studentdb;

show databases;

use studentdb;

create table student_info
    -> (学号 char(4) primary key,
    -> 姓名 char(8) not null,
    -> 性别 char(2) not null,
    -> 出生日期 date not null,
    -> 家庭住址 varchar(50));

create table curriculum
    -> (课程编号 char(4) primary key,
    -> 课程名称 varchar(50),
    -> 学分 int);

create table grade
    -> (学号 char(4),
    -> 课程编号 char(4),
    -> 分数 int,
    -> primary key(学号，课程编号));

 insert into student_info values
    ->  ('0001','张青平','男','2000-10-01','衡阳市东风路77号');

 insert into student_info values
    -> ('0002','刘东阳','男','1998-12-09','东阳市八一北路33号');

insert into student_info values
    ->  ('0003','马晓夏','女','1995-05-12','长岭市五一路763号');

 insert into student_info values
    ->  ('0004','钱忠理','男','1994-09-23','滨海市洞庭大道279号');

insert into student_info values
    ->  ('0005','孙海洋','男','1995-04-03','长岛市解放路27号');

insert into student_info values
    ->  ('0006','郭小斌','男','1997-11-10','南山市红旗路113号');

insert into student_info values
    ->  ('0007','笑月玲','女','1996-12-07','东方市南京路11号');

 insert into student_info values
    ->  ('0008','张玲珑','女','1997-12-24','滨江市新建路97号');

select * from student_info;

insert into curriculum values
  ->  ('0001','计算机应用基础','2');

insert into curriculum values
  ->  ('0002','C语言程序设计','2');

insert into curriculum values
  ->  ('0003','数据库原理及应用','2');

insert into curriculum values
  ->  ('0004','英语','4');

insert into curriculum values
  ->  ('0005','高等数学','4');

insert into grade values
    -> ('0001','0001','80');

insert into grade values
    ->  ('0001','0002','91');

insert into grade values
    ->  ('0001','0003','88');

 insert into grade values
    ->  ('0001','0004','85');

insert into grade values
    ->  ('0001','0005','77');

insert into grade values
    ->  ('0002','0001','73');

 insert into grade values
    ->  ('0002','0002','68');

insert into grade values
    ->  ('0002','0003','80');

insert into grade values
    ->  ('0002','0004','79');

insert into grade values
    ->  ('0002','0005','73');

insert into grade values
    ->  ('0003','0001','84');

insert into grade values
    -> ('0003','0002','92');

insert into grade values
    -> ('0003','0003','81');

 insert into grade values
    -> ('0003','0004','82');

 insert into grade values
    -> ('0003','0005','75');

select * from grade;