如何在sql組中添加下一行的值

Question

如何獲取RESULT列？

P_Key Staff Amt EMI RESULT 
372175 9174 1584 1 1584 
372176 9174 1619 2 3203 
372177 9174 1654 3 4857 
372178 9174 1689 4 6546 
372179 9174 1726 5 8272 
699334 22057 1136 1 1136 
699335 22057 1161 2 2297 
699336 22057 1186 3 3483 
699337 22057 1212 4 4695 
699338 22057 1238 5 5933 
699339 22057 1265 6 7198 
699340 22057 1292 7 8490 
699341 22057 1320 8 9810 
699342 22057 1349 9 11159 

Answer 1

你似乎想要一個累計和。在SQL Server 2008中，一種方法是apply：

select t.*, t2.result 
from t cross apply 
    (select sum(amt) as result 
     from t2 
     where t2.staff = t.staff and t2.emi <= t.emi 
    ) t2; 

Answer 2

試試這個。這將在SQL Server 2012

select sum(Amt) over (partition by EMI order by EMI)as RESULT from Your_table 

工作或嘗試下面

SELECT SUM(Amt) FROM Your_table a, 
Your_table b 
WHERE b.EMI <= a.EMI 
GROUP BY a.EMI 
ORDER BY a.EMI;