合计入库查询的SQL语句

求助：合计入库查询的SQL语句
由表一的入库表，得到每个产品每日的合计入库数量或每日的对应尾数：
入库表
产品编码报表日期下单数量当日入库
01-4045-17 2012-9-2 100 20
01-4045-11 2012-9-3 140 21
01-4045-17 2012-9-3 100 78
01-4045-10 2012-9-4 140 61
01-4045-13 2012-9-4 80 10
01-4045-17 2012-9-4 100 2
01-4045-10 2012-9-8 140 1
01-4045-13 2012-9-8 80 14
01-4045-27 2012-9-8 2000 480
01-4045-22 2012-9-9 400 128
01-4045-27 2012-9-9 2000 240
01-4045-27 2012-9-10 2000 520
01-4045-10 2012-9-11 140 45
01-4045-22 2012-9-11 400 152
01-4045-28 2012-9-11 160 100

分析查询
产品编码报表日期下单数量当日入库合计入库当日尾数
01-4045-17 2012-9-2 100 20 20 80
01-4045-11 2012-9-3 140 21 21 119
01-4045-17 2012-9-3 100 78 98 2
01-4045-10 2012-9-4 140 61 61 79
01-4045-13 2012-9-4 80 10 10 70
01-4045-17 2012-9-4 100 2 100 0
01-4045-10 2012-9-8 140 1 1 139
01-4045-13 2012-9-8 80 14 24 56
01-4045-27 2012-9-8 2000 480 480 1520
01-4045-22 2012-9-9 400 128 128 272
01-4045-27 2012-9-9 2000 240 720 1280
01-4045-27 2012-9-10 2000 520 1240 760
01-4045-10 2012-9-11 140 45 45 95
01-4045-22 2012-9-11 400 152 280 120
01-4045-28 2012-9-11 160 100 100 60

------解决方案--------------------

SQL code


----------------------------
-- Author  :TravyLee(物是人非事事休，欲语泪先流！)
-- Date    :2012-09-17 10:35:11
-- Version:
--      Microsoft SQL Server 2005 - 9.00.1399.06 (Intel X86) 
--    Oct 14 2005 00:33:37 
--    Copyright (c) 1988-2005 Microsoft Corporation
--    Developer Edition on Windows NT 6.1 (Build 7601: Service Pack 1)
--
----------------------------
--> 测试数据：[入库表]
if object_id('[入库表]') is not null drop table [入库表]
go 
create table [入库表](
[产品编码] datetime,
[报表日期] datetime,
[下单数量] int,
[当日入库] int
)
insert [入库表]
select '01-4045-17','2012-9-2',100,20 union all
select '01-4045-11','2012-9-3',140,21 union all
select '01-4045-17','2012-9-3',100,78 union all
select '01-4045-10','2012-9-4',140,61 union all
select '01-4045-13','2012-9-4',80,10 union all
select '01-4045-17','2012-9-4',100,2 union all
select '01-4045-10','2012-9-8',140,1 union all
select '01-4045-13','2012-9-8',80,14 union all
select '01-4045-27','2012-9-8',2000,480 union all
select '01-4045-22','2012-9-9',400,128 union all
select '01-4045-27','2012-9-9',2000,240 union all
select '01-4045-27','2012-9-10',2000,520 union all
select '01-4045-10','2012-9-11',140,45 union all
select '01-4045-22','2012-9-11',400,152 union all
select '01-4045-28','2012-9-11',160,100
go

select
    [产品编码],
    [报表日期],
    [下单数量],
    [当日入库],
    合计入库=(select sum([当日入库]) from [入库表] b where a.[产品编码]=b.[产品编码] and a.[报表日期]>=b.[报表日期]),
    当日尾数=[下单数量]-(select sum([当日入库]) from [入库表] b where a.[产品编码]=b.[产品编码] and a.[报表日期]>=b.[报表日期])
from
    [入库表] a

/*
4045-01-17 00:00:00.000    2012-09-02 00:00:00.000    100    20    20    80
4045-01-11 00:00:00.000    2012-09-03 00:00:00.000    140    21    21    119
4045-01-17 00:00:00.000    2012-09-03 00:00:00.000    100    78    98    2
4045-01-10 00:00:00.000    2012-09-04 00:00:00.000    140    61    61    79
4045-01-13 00:00:00.000    2012-09-04 00:00:00.000    80    10    10    70
4045-01-17 00:00:00.000    2012-09-04 00:00:00.000    100    2    100    0
4045-01-10 00:00:00.000    2012-09-08 00:00:00.000    140    1    62    78
4045-01-13 00:00:00.000    2012-09-08 00:00:00.000    80    14    24    56
4045-01-27 00:00:00.000    2012-09-08 00:00:00.000    2000    480    480    1520
4045-01-22 00:00:00.000    2012-09-09 00:00:00.000    400    128    128    272
4045-01-27 00:00:00.000    2012-09-09 00:00:00.000    2000    240    720    1280
4045-01-27 00:00:00.000    2012-09-10 00:00:00.000    2000    520    1240    760
4045-01-10 00:00:00.000    2012-09-11 00:00:00.000    140    45    107    33
4045-01-22 00:00:00.000    2012-09-11 00:00:00.000    400    152    280    120
4045-01-28 00:00:00.000    2012-09-11 00:00:00.000    160    100    100    60
*/

合计入库查询的SQL语句

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