• 2022-11-03
    要查询所有课程中,各门课程的最高分,下面SQL语句正确的是______。
    A: SELCET 课程号,AVG(成绩) FROM 选课表 ORDER BY 课程号;
    B: SELCET 课程号, MAX(成绩) FROM 选课表 GROUP BY 课程号;
    C: SELCET 课程号,Min(成绩), FROM 选课表 GROUP BY 课程号;
    D: SELCET 课程号,SUM(成绩) FROM 选课表 GROUP BY 课程号;
  • 举一反三