请教大家一个SQL的问题.

回复讨论(解决方案)

select class,sum(case score >=60 then 1 else 0 end) as '及格人数',sum(case score < 60 then 1 else 0 end) as '不及格人数'from student group by class

select class,(select count(*) from student where class=stu.class and score >=60 ) as '及格人数',(select count(*) from student where class=stu.class and score <60 ) as '及格人数',from student stu group by class

哦，写错了。更正：

select class,(select count(*) from student where class=stu.class and score >=60 ) as '及格人数',(select count(*) from student where class=stu.class and score <60 ) as '不及格人数',from student stu group by class