每次更改帳戶編號時要重置的運行總計數

Question

表具有如下所示的數據。它包含了我要尋找一個查詢的兩個帳號

 
P_ID AcctNo Date Amount 
1 111A 04/03/2011 -331 
2 111A 04/03/2011 600 
3 111A 04/03/2011 20000 
4 111A 05/03/2011 -20000 
5 111A 10/03/2011 -260 
6 111B 01/08/2011 2 
7 111B 12/09/2012 500 
8 111B 13/09/2012 -166 
9 111B 13/09/2012 -225 

的數據給我運行總和，如下圖所示（的運行總計被重置帳戶改變）：

 
P_ID AcctNo Date Amount Running Total 
1 111A 04/03/2011 -331 -331 
2 111A 04/03/2011 600  269 
3 111A 04/03/2011 20000 20269 
4 111A 05/03/2011 -20000 269 
5 111A 10/03/2011 -260 9 
6 111B 01/08/2011 2  2 
7 111B 12/09/2012 500  502 
8 111B 13/09/2012 -166 336 
9 111B 13/09/2012 -225 111 

Answer 1

試試這個： -

SELECT P_ID,AcctNo, Amount, 
(SELECT SUM(Amount) as total 
    FROM YourTable s 
    WHERE s.P_ID <= a.P_ID and s.AcctNo=a.AcctNo 
) AS b 
FROM YourTable a 

演示在SQLFIDDLE

結果

╔══════╦════════╦════════╦═══════╗ 
║ P_ID ║ ACCTNO ║ AMOUNT ║ B ║ 
╠══════╬════════╬════════╬═══════╣ 
║ 1 ║ 111A ║ -331 ║ -331 ║ 
║ 2 ║ 111A ║ 600 ║ 269 ║ 
║ 3 ║ 111A ║ 20000 ║ 20269 ║ 
║ 4 ║ 111A ║ -20000 ║ 269 ║ 
║ 5 ║ 111A ║ -260 ║  9 ║ 
║ 6 ║ 111B ║  2 ║  2 ║ 
║ 7 ║ 111B ║ 500 ║ 502 ║ 
║ 8 ║ 111B ║ -166 ║ 336 ║ 
║ 9 ║ 111B ║ -225 ║ 111 ║ 
╚══════╩════════╩════════╩═══════╝ 

Answer 2

如果您使用SQL Server 2012中，這是一個非常簡單的查詢：

declare @t table (P_ID int,AcctNo char(4), [Date] date, Amount int) 
insert into @t(P_ID,AcctNo,Date,Amount) values 
(1,'111A','20110304',-331), 
(2,'111A','20110304',600), 
(3,'111A','20110304',20000), 
(4,'111A','20110305',-20000), 
(5,'111A','20110310',-260), 
(6,'111B','20110801',2), 
(7,'111B','20120912',500), 
(8,'111B','20120913',-166), 
(9,'111B','20120913',-225) 

select *,SUM(Amount) OVER (PARTITION BY AcctNo ORDER BY P_ID 
     RANGE UNBOUNDED PRECEDING) from @t order by P_ID 

結果：

P_ID  AcctNo Date  Amount  
----------- ------ ---------- ----------- ----------- 
1   111A 2011-03-04 -331  -331 
2   111A 2011-03-04 600   269 
3   111A 2011-03-04 20000  20269 
4   111A 2011-03-05 -20000  269 
5   111A 2011-03-10 -260  9 
6   111B 2011-08-01 2   2 
7   111B 2012-09-12 500   502 
8   111B 2012-09-13 -166  336 
9   111B 2012-09-13 -225  111 

它使用SQL Server 2012中的新功能爲它在範圍上應用集合函數 - 實際上，在這種情況下甚至不需要RANGE子句，因爲：

如果ROWS/RANGE未指定，而是指定ORDER BY，RANGE UNBOUNDED PRECEDING AND CURRENT ROW作爲默認窗框

但我加入這裏以使其更清晰發生了什麼事。