一 学生表 student

  1. create table student(sid varchar(10), sname varchar(10), sage datetime,ssex varchar(10));
  2. insert into Student values('01' , '赵雷' , '1990-01-01' , '男');
  3. insert into Student values('02' , '钱电' , '1990-12-21' , '男');
  4. insert into Student values('03' , '孙风' , '1990-12-20' , '男');
  5. insert into Student values('04' , '李云' , '1990-12-06' , '男');
  6. insert into Student values('05' , '周梅' , '1991-12-01' , '女');
  7. insert into Student values('06' , '吴兰' , '1992-01-01' , '女');
  8. insert into Student values('07' , '郑竹' , '1989-01-01' , '女');
  9. insert into Student values('09' , '张三' , '2017-12-20' , '女');
  10. insert into Student values('10' , '李四' , '2017-12-25' , '女');
  11. insert into Student values('11' , '李四' , '2012-06-06' , '女');
  12. insert into Student values('12' , '赵六' , '2013-06-13' , '女');
  13. insert into Student values('13' , '孙七' , '2014-06-01' , '女');

二 科目表 course

  1. create table course(cid varchar(10), cname varchar(10), tid varchar(10));
  2. insert into Course values('01' , '语文' , '02');
  3. insert into Course values('02' , '数学' , '01');
  4. insert into Course values('03' , '英语' , '03');

三 教师表 teacher

  1. create table teacher(tid varchar(10), tname varchar(10));
  2. insert into Teacher values('01' , '张三');
  3. insert into Teacher values('02' , '李四');
  4. insert into Teacher values('03' , '王五');

四 成绩表 sc

  1. create table sc(sid varchar(10), cid varchar(10), score decimal(18,1));
  2. insert into SC values('01' , '01' , 80);
  3. insert into SC values('01' , '02' , 90);
  4. insert into SC values('01' , '03' , 99);
  5. insert into SC values('02' , '01' , 70);
  6. insert into SC values('02' , '02' , 60);
  7. insert into SC values('02' , '03' , 80);
  8. insert into SC values('03' , '01' , 80);
  9. insert into SC values('03' , '02' , 80);
  10. insert into SC values('03' , '03' , 80);
  11. insert into SC values('04' , '01' , 50);
  12. insert into SC values('04' , '02' , 30);
  13. insert into SC values('04' , '03' , 20);
  14. insert into SC values('05' , '01' , 76);
  15. insert into SC values('05' , '02' , 87);
  16. insert into SC values('06' , '01' , 31);
  17. insert into SC values('06' , '03' , 34);
  18. insert into SC values('07' , '02' , 89);
  19. insert into SC values('07' , '03' , 98);