Home Database Mysql Tutorial mysql根据查询结果创建表_MySQL

mysql根据查询结果创建表_MySQL

Jun 01, 2016 pm 01:01 PM
result

现在假设存在三张表

s(sno,sname.sex,age,dept) //sno代表学生的学号 , sname代表学生姓名 , sex代表性别 ,age代表年龄,dept代表系

c(cno,cname,tname) //cno课程号 ,cname课程名 , tname老师名字

sc(sno,cno,grade) //sno学号,cno课程号,grade成绩

现有如下要求:将一门课的成绩大于等于80分学生的学号、姓名和系名新建一个基本表stu(sno,sname,dept)

create table stu (
select sno , sname ,dept from s where s.sno in (select sno from sc where sc.grade >= 80)
);

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