摘要: 按照面积最大筛选,行政区代码有重复 方法一: select "XZQDM","XZQMC","JZQ","MJ" from (select "XZQDM","XZQMC","JZQ","MJ",ROW_NUMBER() OVER (PARTITION by "XZQDM" ORDER BY "MJ" 阅读全文