SQL Server

开发平台：

SQL

2-20.sql：源码内容

							select studentname 学生姓名,courses.coursename 课程名,teachername 教师姓名,grade 成绩
from students,courses,teachers,enrolls,sections
where teachers.teacher=sections.teacher and sections.course=enrolls.course and students.student=enrolls.student and courses.course=enrolls.course

						