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multi-table-query-2019-5-21-3-10-2-585's Introduction

  • 1.学生表 student(id,name,age,sex);
    • id 学生编号
    • name 学生姓名
    • age 出生年月
    • sex 学生性别
  • 2.课程表 course(id,name,teacherId);
    • id 课程编号
    • name 课程名称
    • teacherId 教师编号
  • 3.教师表 teacher(id,name);
    • id 教师编号
    • name 教师姓名
  • 4.成绩表 student_course(studentId,courseId,score);
    • studentId 学生编号
    • courseId 课程编号
    • score 分数

步骤:

1.通过data.sql将数据导入
2.完成select.sql中的sql语句。

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