哪错了?select score1.学号,score1.课程号,course.成绩 from score1,course where score1.课程号=course
问题描述:
哪错了?select score1.学号,score1.课程号,course.成绩 from score1,course where score1.课程号=course
答
select score1.学号,score1.课程号,course.成绩 from score1,course where (score1.学号=course.学号) and score1.课程号=course