如何一条SQL从一张表中取出关联字段值分别为A/B/C的数据一个取出N条？

Question

如何一条SQL从一张表中取出关联字段值分别为A/B/C的数据一个取出N条？

Answer 1

自问自答

SELECT * FROM s_area AS a
WHERE area_parent_id in (3,4,5) and 5 > ( SELECT COUNT(*) FROM s_area WHERE area_parent_id = a.area_parent_id AND area_id>a.area_id) 
order by area_sort asc