以下查询获取客户声明:
SELECT t.S_Type,t.Number, t.Debit, t.Credit,t.CustID,b.Balance
FROM Statement as t
CROSS apply
(
SELECT Balance = SUM(Debit) - SUM(Credit)
FROM Statement as x
WHERE x.Number<= t.Number
) b
ORDER BY t.Number
查询结果:
type # Debit credit cid balance
Sales Invoice 1 200.00 0.00 3 200.00
Sales Invoice 10 850.00 0.00 3 1050.00
Service Invoice 11 90.00 0.00 21 1140.00
Sales Invoice 12 20.00 0.00 3 1160.00
Sales Invoice 13 200.00 0.00 2 1360.00
Sales Invoice 14 20.00 0.00 9 1380.00
Sales …