oracle 拼接某个字段的所有值

select stastep from i_cre_risk_csdetail where iflag=1 and plan_id=1 and  parentid=7;
select plan_id, ltrim(max(sys_connect_by_path(stastep, ';')), ';') from 
(
select plan_id,stastep,rownum as rn
from i_cre_risk_csdetail where iflag=1 and plan_id=1 and  parentid=7)
start with rn=1
connect by prior rn=rn-1 and prior plan_id=plan_id


group by plan_id

order by plan_id ;;

效果图：