sql STUFF 分组
1 ---将sql想关的数据放到一个字段里 2 select r.Region_Name, 3 STUFF((select ','+cast(c2.city_name as varchar(10)) [text()] 4 from City c2 5 inner join Region as r2 on c2.Region_id=r.Region_ID 6 where r2.Region_ID = r.Region_ID 7 for xml path('')),1,1,'') city_name 8 from Region as r