select * from mv_dp_cxzrssb as t1
 order by 
(case when t1.stage='小学' then 1 
  when t1.stage='初中' then 2
  when t1.stage='高中' then 3
 end),
 (case when t1.citycountrygroup='城区' then 1 
  when t1.citycountrygroup='镇区' then 2
  when t1.citycountrygroup='乡村' then 3
 end)