汇总其余值

Question

您好，我需要帮助分析以下数据。我需要的逻辑是每个提供程序的总和应除以其余提供程序。例如，根据以下数据，每个总和（提供者）应由总和（提供者的其余部分）剥离

sum(east RISK)/sum(west Risk)+sum(south RISK)
sum(west RISK)/sum(east RISK)+sum(south RISK)
sum(south RISK)/sum(east RISK)+sum(west RISK)
and so on....
....
....


Mbr Provider        Group           Risk
1   east            Group           2.44
2   east            Group           0.05
3   east            Group           1.01
4   east            Group           0.14
5   west            Comp MRKT       0.32
6   west            Comp MRKT       2.12
7   south           Comp MRKT       5.78
8   south           Comp MRKT       1.11

Answer 1

我认为您可以为此使用ANSI标准窗口功能：

select provider,
       (sum(risk) / (sum(sum(risk)) over () - sum(risk))
       )
from t
group by provider;