请问老师我的程序写的对吗?
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; 请问老师对不对啊?什么时候公布答案?
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; 请问老师对不对啊?什么时候公布答案?
2016-01-07
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