select c.pm_ci CI_ID, wm_concat(s.stu_name) STU_NAME
from pm_ci c , pm_stu s
where instr(c.stu_ids , s.stu_name) > 0
group by c.ci_id;
from pm_ci c , pm_stu s
where instr(c.stu_ids , s.stu_name) > 0
group by c.ci_id;
这什么老师啊,要不要人听下去,英语差还可以理解,这讲课的语气,能把有气无力和掷地有声完美地结合,也真是为难你了~~
我只想好好听一下SQL查询,你能正常点吗,老师~~~~
我只想好好听一下SQL查询,你能正常点吗,老师~~~~
2016-01-23
select a.ci_id,wm_concat(b.stu_name) group by a.ci_id
from pm_ci a ,pm_stu b
where instr(a.stu_ids, b.stu_id)=b.stu_id;
from pm_ci a ,pm_stu b
where instr(a.stu_ids, b.stu_id)=b.stu_id;
select a.ci_id,wm_concat(b.stu_name) group by a.ci_id from pm_ci a ,pm_stu b where instr(a.stu_ids, b.stu_id)=b.stu_id;