练习作业提交
select
ci_id
,(select listagg(stu_name,',') within group(order by stu_id)
from pm_stu where instr(pc.STU_IDS,stu_id)>0) stu_names
from pm_ci pc
;
select
ci_id
,(select listagg(stu_name,',') within group(order by stu_id)
from pm_stu where instr(pc.STU_IDS,stu_id)>0) stu_names
from pm_ci pc
;
2020-03-28
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