select occur_period ,area_code ,index_code ,r ,gxl ,sum(gxl) over(order by r asc rows between unbounded preceding and current row ) as gxl_lj from tabl01
CURRENT ROW 当前行
UNBOUNDED PRECEDING 边界永远第一行
unbounded following 表示边界永远为最后一行
参考博客
- 周六. 5月 18th, 2024