如何在 SQL 中添加（求和）列数据

Question

ID  pcID    contractor  approver    claimed
-------------------------------------------
1   1       one          1000         900
2   1       two           200         100
3   1       three        1000        1000
4   1       six           100          11
5   2       six           100          22
6   3       six           120           1
7   4       three         102          10

从上表中，我需要根据承包商将批准人金额和索赔金额相加。如下表所示。一切都是通过使用存储过程完成的。

ID  pcID    contractor  approver    claimed  TotalApprover   TotalClaimed
--------------------------------------------------------------------------
1   1       one          1000         900     1000               900
2   1       two           200         100      200               100
3   1       three        1000        1000     1000              1000
4   1       six           100          11      100                11
5   2       six           100          22      200                33
6   3       six           120           1      320                34
7   4       three         102          10     1120              1001    

像上表一样，我需要根据承包商按升序添加输出（总和）。

提前致谢。

Answer 1

你可以使用窗口功能

select t.*,
  sum(approver) over( partition by contractor order by ID) TotalApprover,
  sum(claimed) over( partition by contractor order by ID) TotalClaimed,
from table1 t

Answer 2

您想要累积总和：

select t.*,
       sum(approver) over (partition by contractor order by claimid) as totalapprover,
       sum(claim) over (partition by contractor order by claimid) as totalclaim
from t;

这只是根据您要求的维度累积相应的值。